WO2021082910A1 - 无线耳机 - Google Patents

无线耳机 Download PDF

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Publication number
WO2021082910A1
WO2021082910A1 PCT/CN2020/120754 CN2020120754W WO2021082910A1 WO 2021082910 A1 WO2021082910 A1 WO 2021082910A1 CN 2020120754 W CN2020120754 W CN 2020120754W WO 2021082910 A1 WO2021082910 A1 WO 2021082910A1
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WO
WIPO (PCT)
Prior art keywords
substrate
board portion
chip
hard
rigid
Prior art date
Application number
PCT/CN2020/120754
Other languages
English (en)
French (fr)
Inventor
李得亮
陈少俭
郭学平
朱董宜
马富强
史红兵
叶润清
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US17/773,710 priority Critical patent/US20220386015A1/en
Priority to JP2022525232A priority patent/JP2023500103A/ja
Priority to EP20881667.8A priority patent/EP4040798A4/en
Priority to BR112022008135A priority patent/BR112022008135A2/pt
Priority to KR1020227017424A priority patent/KR102606128B1/ko
Publication of WO2021082910A1 publication Critical patent/WO2021082910A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058Manufacture or assembly
    • H04R1/1075Mountings of transducers in earphones or headphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058Manufacture or assembly
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/14Structural association of two or more printed circuits
    • H05K1/147Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/18Printed circuits structurally associated with non-printed electric components
    • H05K1/189Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/10Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices having separate containers
    • H01L25/105Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices having separate containers the devices being of a type provided for in group H01L27/00
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/16Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016Earpieces of the intra-aural type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/105Manufacture of mono- or stereophonic headphone components
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07Applications of wireless loudspeakers or wireless microphones
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/04Assemblies of printed circuits
    • H05K2201/042Stacked spaced PCBs; Planar parts of folded flexible circuits having mounted components in between or spaced from each other
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/05Flexible printed circuits [FPCs]
    • H05K2201/052Branched
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09Shape and layout
    • H05K2201/09009Substrate related
    • H05K2201/09027Non-rectangular flat PCB, e.g. circular
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2009Reinforced areas, e.g. for a specific part of a flexible printed circuit
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2036Permanent spacer or stand-off in a printed circuit or printed circuit assembly
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/13Moulding and encapsulation; Deposition techniques; Protective layers
    • H05K2203/1305Moulding and encapsulation
    • H05K2203/1316Moulded encapsulation of mounted components
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/22Secondary treatment of printed circuits
    • H05K3/28Applying non-metallic protective coatings
    • H05K3/284Applying non-metallic protective coatings for encapsulating mounted components

Definitions

  • the embodiments of the present application relate to the technical field of electronic products, and in particular to a wireless headset.
  • the traditional wireless earphone is usually equipped with a hard main circuit board and a plurality of auxiliary circuit boards.
  • the size of each circuit board, the multiple components of the control system of the wireless headset are split and arranged on different circuit boards, and then the different circuit boards are connected through the flexible circuit board to realize the connection between the different devices, resulting in The device integration of the wireless headset is low.
  • the purpose of the embodiments of the present application is to provide a wireless earphone with high device integration.
  • an embodiment of the present application provides a wireless headset.
  • Wireless headsets can be connected wirelessly (such as Bluetooth connection) to electronic devices such as mobile phones, laptops, tablets, smart watches, etc., to be used in conjunction with electronic devices to process audio services such as media and calls of electronic devices, or to process other data services .
  • the wireless earphone has an ear handle part and an ear plug part connected to the ear handle part.
  • the wireless headset includes a main control module, and the main control module includes a rigid-flex circuit board, a first substrate, a first support, and a plurality of chips.
  • the rigid-flex circuit board includes a rigid board portion and a first flexible board portion and a second flexible board portion connected to the rigid board portion.
  • the hard plate part is located in the earplug part
  • the first soft plate part is located in the earplug part and one end is connected to the hard plate part, one end of the second soft plate part is connected to the hard plate part, and the other end extends to the ear handle part.
  • the wireless headset includes a plurality of functional modules.
  • the first soft board part is used for connecting part of the functional modules located in the earplug part.
  • the second soft board part is used for connecting part of the functional modules at the earplug part and the functional modules at the ear handle part.
  • the first substrate and the hard board part are stacked and arranged to be spaced apart from each other.
  • the projection of the first substrate on the hard board portion falls within the range of the hard board portion.
  • the first supporting member is located between the first substrate and the rigid board portion, and respectively resists the first substrate and the rigid board portion.
  • At least one chip of the plurality of chips is fixed to the hard board portion, at least one chip of the plurality of chips is fixed to the first substrate, and the chip fixed to the first substrate is electrically connected to the hard board portion through the first support.
  • the main control module is fixed on the hard board part and the parts above and below the hard board part to form a stacked assembly. That is, the main control module includes a flexible and hard combined circuit board and a stack assembly, the stack assembly is fixed to the hard board part, and the stack assembly includes a first substrate, a first support, and a plurality of chips.
  • the main control module includes a first substrate and a hard board portion that are stacked, and at least one chip is fixed to the first substrate and at least one chip is fixed to the hard board portion. Therefore, the stack assembly of the main control module can be Form a multi-layer device stack structure, the chips of the wireless headset can be fully integrated or most integrated in the stack assembly, and the devices in the stack assembly can be connected to multiple functions of the wireless headset through the multiple soft board parts of the soft and hard circuit board. Therefore, the control system of the wireless headset can be completely integrated into the stacking assembly, thereby eliminating the multiple auxiliary circuit boards responsible for carrying the control system components in the traditional wireless headset, and improving the performance of the main control module and the wireless headset. Device integration.
  • the thickness dimension of the stacked assembly in which the multilayer devices are stacked in the direction perpendicular to the rigid board portion is relatively large. Since the stacking component is fixed on the hard board part and the hard board part is located in the earplug part, the stacking component is located in the earplug part, the installation of the stacking component is less difficult, and the stacking component can make full use of the inner cavity space of the earplug part, thereby increasing the space of the wireless headset Utilization rate.
  • the outer contour shape of the hard plate part and the stacking component can be adapted to the shape of the inner cavity of the earplug part, for example, a circular or approximately circular outer contour is adopted, thereby further improving the space utilization rate of the wireless earphone.
  • the chip fixed on the first substrate can be electrically connected to the rigid board portion via the first support, there is no need to provide a flexible circuit board for signal transmission between the first substrate and the rigid board portion.
  • the signal transmission path between the chip of a substrate and the hard board part is realized by the first support, and the signal transmission path is short, which makes the signal transmission quality better. For example, the risk of distortion of audio signals during transmission is small.
  • the main control module of this embodiment no longer has a flexible circuit board connected between the first substrate and the rigid board, and can also avoid bending of the flexible circuit board and a large bending angle. The broken area causes a break and an open circuit, leading to product failure or low yield problems.
  • the main control module further includes a plurality of chip matching devices. At least one chip matching device among the plurality of chip matching devices is fixed to the first substrate, and at least one chip matching device is fixed to the hard board part. The chip matching device fixed on the first substrate is electrically connected to the hard board part via the first support. The arrangement positions of multiple chip matching devices can be arranged with their corresponding chips.
  • the first support includes a plurality of first elevated columns, and the plurality of first elevated columns are located between the rigid board portion and the first base plate and fixed to the rigid board portion.
  • the main control module further includes a first packaging layer, the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion. At this time, the end surface of one end of the plurality of first elevated columns away from the hard board portion is exposed to the first packaging layer, and the first substrate can be connected to the end surface of the first elevated column.
  • the first encapsulation layer also encapsulates a plurality of chip matching devices on the hard board part. The first packaging layer can protect the packaged devices, so that the main control module has higher reliability and longer service life.
  • the first packaging layer directly encapsulates multiple devices on the hard board portion, so that multiple devices can directly pass through the hard board portion, the first soft board portion or the second soft board portion and the functional module of the wireless headset
  • the connection method of this embodiment is more direct and has a simpler structure .
  • the rigid board portion includes a first surface facing the first substrate.
  • the first surface includes a first encapsulation area and a first non-encapsulation area, the first encapsulation layer is located in the first encapsulation area, and the first non-encapsulation area is located around the first encapsulation area.
  • the first non-encapsulated area can provide support space for the mold during the molding process of the first encapsulation layer, so as to avoid the rigid-flex circuit board due to the mold resisting the first flexible board portion or the second flexible board portion Produce damage, so as to ensure the production yield of the main control module.
  • the main control module further includes at least one first device, and the at least one first device is fixed to the first non-packaged area.
  • the first device is a device that is not suitable for plastic packaging, including but not limited to a surface acoustic wave filter with a cavity, a crystal oscillator with a cavity, a pressure-sensitive device, and the like.
  • the first non-encapsulated area of the hard board part not only provides a holding space for the mold during the molding process of the first packaging layer, but also is used to arrange the first devices that are not suitable for packaging, so the main control module is complex.
  • the space of the first non-encapsulated area is used, and the space utilization rate is improved.
  • the first base plate is welded with a plurality of first elevated columns.
  • the main control module further includes a second encapsulation layer, the second encapsulation layer is located on the side of the first substrate away from the hard board portion, and the second encapsulation layer encapsulates at least one chip on the first substrate.
  • the second packaging layer can also package at least one chip matching device on the first substrate. The second packaging layer can protect the packaged devices, so that the main control module has a higher reliability and a longer service life.
  • the first support member further includes a plurality of second elevated columns, the plurality of second elevated columns are fixed to the side of the first base plate facing the rigid plate portion, and the plurality of second elevated columns Welded in a one-to-one correspondence with the plurality of first elevated columns.
  • the main control module also includes a second encapsulation layer and a third encapsulation layer.
  • the second encapsulation layer is located on the side of the first substrate away from the hard board portion.
  • the second encapsulation layer encapsulates at least one chip on the first substrate.
  • the third encapsulation layer Located on the side of the first substrate facing the hard board portion, the third packaging layer encapsulates the plurality of second elevated pillars and at least one chip on the first substrate.
  • the first support since the first support includes a first elevated column and a second elevated column that are stacked, the first support has a sufficient height, so the distance between the first base plate and the rigid plate portion is relatively large.
  • Two layers of devices can be arranged between the first substrate and the hard board, so that the main control module integrates three layers of devices in the direction perpendicular to the hard board, and the device arrangement density of the main control module and wireless earphones is greater. Higher integration.
  • the arrangement of the multiple chips of the main control module in the three-layer device is more flexible and diverse.
  • the main control module further includes at least one second device, and the at least one second device is fixed on a side of the first substrate away from the hard board portion and located outside the second packaging layer.
  • the second device is a device that is not suitable for plastic packaging, including but not limited to a surface acoustic wave filter with a cavity, a crystal oscillator with a cavity, and a pressure-sensitive device.
  • the devices in the main control module that are not suitable for plastic packaging can be flexibly arranged on the hard board part and/or the first substrate according to the function selection and the arrangement position of the chips, which improves the device row of the main control module. Flexibility and diversification of cloth.
  • the main control module further includes a second substrate, a second packaging layer, a third packaging layer, and a plurality of third elevated pillars.
  • the first substrate is welded with a plurality of first elevated pillars, the chip fixed to the first substrate is located on the side of the first substrate away from the rigid board portion, the second substrate is located on the side of the first substrate away from the rigid board portion, and the second substrate is connected to the The first substrates are stacked to be spaced apart from each other, and a plurality of third elevated pillars are located between the second substrate and the first substrate, and respectively resist the second substrate and the first substrate.
  • the second packaging layer is located between the second substrate and the first substrate, and the plurality of third elevated pillars and the chips fixed to the first substrate are packaged in the second packaging layer. At least one chip of the plurality of chips is packaged in the second packaging layer and fixed to the second substrate.
  • the third packaging layer is located on a side of the second substrate away from the first substrate, and at least one chip of the plurality of chips is packaged in the third packaging layer and fixed to the second substrate.
  • the chip fixed on the second substrate is electrically connected to the hard board part through a plurality of third elevated pillars, a first substrate and a plurality of first elevated pillars.
  • the main control module is located on the side of the rigid board facing the first substrate, the side of the first substrate away from the rigid board, the side of the second substrate facing the first substrate, and the second substrate away from the first substrate.
  • the devices are arranged on one side of the substrate, so that four layers of devices are stacked in the direction perpendicular to the hard board portion, which improves the arrangement density and integration of the devices.
  • the first packaging layer contacts the first substrate.
  • the main control module further includes a second packaging layer, and the second packaging layer is fixed on the side of the first substrate away from the hard board portion.
  • the chip fixed on the first substrate is partially encapsulated in the first encapsulation layer and partially encapsulated in the second encapsulation layer.
  • the main control module has devices arranged on the side of the hard board part facing the first substrate, the side of the first substrate facing the hard board part, and the side of the first substrate away from the hard board part. There are three layers of devices stacked in the direction perpendicular to the hard board part, so the device arrangement density of the main control module and the wireless earphone is relatively high, and the integration level is relatively high.
  • the main control module further includes a fourth encapsulation layer, the fourth encapsulation layer is fixed on the side of the hard board portion away from the first substrate, and at least one of the chips fixed on the hard board portion is packaged In the fourth encapsulation layer.
  • the main control module has devices arranged on the side of the hard board part away from the first substrate, the side of the hard board part facing the first substrate, and the side of the first substrate away from the hard board part, so that There are three layers of devices stacked in the direction perpendicular to the hard board part, so the device arrangement density of the main control module and the wireless earphone is relatively high, and the integration level is relatively high.
  • the first supporting member includes a plurality of first elevated columns and a plurality of second elevated columns arranged in a stack, the plurality of first elevated columns are fixed to the rigid plate part, and the plurality of second elevated columns
  • the elevated pillars are fixed to the first base plate, and the plurality of second elevated pillars are welded in a one-to-one correspondence with the plurality of first elevated pillars.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, and a fourth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion.
  • the second packaging layer is located on the side of the first substrate facing the hard board portion, and the second packaging layer encapsulates a plurality of second elevated pillars and at least one chip on the first substrate.
  • the third packaging layer is located on the side of the first substrate away from the hard board portion, and the third packaging layer encapsulates at least one chip on the first substrate.
  • the fourth encapsulation layer is located on the side of the hard board part away from the first substrate, and the fourth encapsulation layer encapsulates at least one chip on the hard board part.
  • the main control module has devices arranged on both sides of the hard board part and on both sides of the first substrate, so that four layers of devices are stacked in a direction perpendicular to the hard board part, so the main control module And wireless earphones have higher device arrangement density and higher integration.
  • the main control module further includes a third substrate and a second support.
  • the third substrate is located on the side of the hard board part away from the first substrate, and is stacked with the hard board part spaced apart from each other.
  • the second support is located between the third substrate and the hard board part, and is respectively connected to the third substrate and the hard board part.
  • at least one chip of the plurality of chips is fixed on the third substrate, and the chip fixed on the third substrate is electrically connected to the hard board part through the second support.
  • one or more layers of devices can be stacked on both sides of the hard board portion, which further improves the device integration of the main control module and the wireless headset.
  • the first supporting member includes a plurality of first elevated columns and a plurality of second elevated columns arranged in a stack, the plurality of first elevated columns are fixed to the rigid plate part, and the plurality of second elevated columns
  • the elevated pillars are fixed to the first base plate, and the plurality of second elevated pillars are welded in a one-to-one correspondence with the plurality of first elevated pillars.
  • the second support includes a plurality of fourth elevated pillars, and the plurality of fourth elevated pillars are fixed to the rigid board part.
  • the third substrate is welded with a plurality of fourth elevated pillars, and the chip fixed on the third substrate is located on the side of the third substrate away from the hard board portion.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, a fourth packaging layer, and a fifth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion.
  • the second packaging layer is located on the side of the first substrate facing the hard board portion, and the second packaging layer encapsulates a plurality of second elevated pillars and at least one chip on the first substrate.
  • the third packaging layer is located on the side of the first substrate away from the hard board portion, and the third packaging layer encapsulates at least one chip on the first substrate.
  • the fourth packaging layer is located on a side of the hard board part away from the first substrate, and the fourth packaging layer encapsulates a plurality of fourth elevated pillars and at least one chip on the hard board part.
  • the fifth encapsulation layer is located on the side of the third substrate away from the hard board portion, and the fifth encapsulation layer encapsulates at least one chip on the third substrate.
  • the main control module arranges devices on both sides of the rigid board portion, both sides of the first substrate, and the side of the third substrate away from the rigid board portion, so that the components are arranged in a direction perpendicular to the rigid board portion.
  • the main control module and the wireless headset have a higher device arrangement density and higher integration.
  • the first supporting member includes a plurality of first elevated columns and a plurality of second elevated columns arranged in a stack, the plurality of first elevated columns are fixed to the rigid plate part, and the plurality of second elevated columns
  • the elevated pillars are fixed to the first base plate, and the plurality of second elevated pillars are welded in a one-to-one correspondence with the plurality of first elevated pillars.
  • the second supporting member includes a plurality of fourth elevated columns and a plurality of fifth elevated columns that are stacked, wherein the plurality of fourth elevated columns are fixed to the rigid plate portion, and the plurality of fifth elevated columns are fixed to the third base plate, The plurality of fifth elevated columns and the plurality of fourth elevated columns are welded in one-to-one correspondence.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, a fourth packaging layer, a fifth packaging layer, and a sixth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion.
  • the second packaging layer is located on the side of the first substrate facing the hard board portion, and the second packaging layer encapsulates a plurality of second elevated pillars and at least one chip on the first substrate.
  • the third packaging layer is located on the side of the first substrate away from the hard board portion, and the third packaging layer encapsulates at least one chip on the first substrate.
  • the fourth packaging layer is located on a side of the hard board part away from the first substrate, and the fourth packaging layer encapsulates a plurality of fourth elevated pillars and at least one chip on the hard board part.
  • the fifth packaging layer is located on the side of the third substrate facing the hard board portion, and the fifth packaging layer encapsulates the plurality of fifth elevated pillars and at least one chip on the third substrate.
  • the sixth packaging layer is located on a side of the third substrate away from the hard board portion, and the sixth packaging layer encapsulates at least one chip on the third substrate.
  • the main control module arranges devices on both sides of the rigid board, both sides of the first substrate, and both sides of the third substrate, so that six layers are stacked in a direction perpendicular to the rigid board. Therefore, the main control module and the wireless earphone have a higher arrangement density and higher integration.
  • the first supporting member includes a plurality of first elevated columns and a plurality of second elevated columns arranged in a stack, the plurality of first elevated columns are fixed to the rigid plate part, and the plurality of second elevated columns
  • the elevated pillars are fixed to the first base plate, and the plurality of second elevated pillars are welded in a one-to-one correspondence with the plurality of first elevated pillars.
  • the second supporting member includes a plurality of fourth elevated columns arranged in a stack, and the plurality of fourth elevated columns are fixed to the rigid board part.
  • the third base plate is welded with a plurality of fourth elevated columns.
  • the main control module also includes a fourth substrate and a plurality of sixth elevated columns.
  • the fourth substrate is located on the side of the third substrate away from the hard board portion, and is stacked with the third substrate spaced apart from each other.
  • a plurality of sixth elevated pillars are located between the fourth substrate and the third substrate, and support the fourth substrate and the third substrate.
  • the third substrate At least one chip of the plurality of chips is fixed to the fourth substrate.
  • the chip fixed on the fourth substrate is electrically connected to the hard board part through the sixth elevated post, the third substrate and the second support.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, a fourth packaging layer, a fifth packaging layer, and a sixth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion.
  • the second packaging layer is located on the side of the first substrate facing the hard board portion, and the second packaging layer encapsulates a plurality of second elevated pillars and at least one chip on the first substrate.
  • the third packaging layer is located on the side of the first substrate away from the hard board portion, and the third packaging layer encapsulates at least one chip on the first substrate.
  • the fourth packaging layer is located on a side of the hard board part away from the first substrate, and the fourth packaging layer encapsulates a plurality of fourth elevated pillars and at least one chip on the hard board part.
  • the fifth encapsulation layer is located between the third substrate and the fourth substrate.
  • the fifth encapsulation layer encapsulates the plurality of sixth elevated pillars and at least one chip on the third substrate, and encapsulates the at least one chip on the fourth substrate.
  • the sixth packaging layer is located on a side of the fourth substrate away from the third substrate, and the sixth packaging layer encapsulates at least one chip on the fourth substrate.
  • the main control module has devices arranged on both sides of the rigid board, on both sides of the first substrate, on the side of the third substrate away from the rigid board, and on both sides of the fourth substrate. Seven layers of devices are stacked in the direction of the hard board part, so the device arrangement density of the main control module and the wireless earphone is relatively high, and the integration level is relatively high.
  • the first support member includes a plurality of first elevated columns
  • the second support member includes a plurality of fourth elevated columns.
  • the main control module also includes a first packaging layer, a second packaging layer, a fourth packaging layer, and a fifth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate.
  • the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion, and encapsulates the at least one chip on the first substrate. At this time, the first encapsulation layer encapsulates the device located between the rigid board portion and the first substrate.
  • the fourth packaging layer is located between the rigid board portion and the third substrate.
  • the fourth packaging layer encapsulates the plurality of fourth elevated pillars and at least one chip on the rigid board portion, and encapsulates the at least one chip on the third substrate.
  • the fifth encapsulation layer is fixed on the side of the third substrate away from the hard board portion, and the fifth encapsulation layer encapsulates at least one chip on the third substrate.
  • the main control module arranges devices on both sides of the rigid board portion, both sides of the first substrate, and both sides of the third substrate, thereby stacking six layers of devices in a direction perpendicular to the rigid board portion Therefore, the main control module and the wireless headset have a higher device layout density and higher integration.
  • the first support member is a first elevated slab
  • the first elevated slab is a hollow structure
  • at least one chip is located inside the first elevated slab.
  • the first elevated board is a circuit board structure
  • the first elevated board may be fixed to the rigid board part by assembly, or may be integrally formed with the rigid board part.
  • the main control module supports the device arrangement space between the first substrate and the hard board portion through the first elevated board, so that the main control module can integrate at least two layers of devices, thereby improving the device arrangement Density, the integration of the main control module and wireless earphones is relatively high.
  • the devices fixed to the hard board portion are all located on the side of the hard board portion facing the first substrate, and some devices are located inside the first elevated board, and some devices are located outside the first elevated board.
  • the device fixed to the hard board part is partly located on the side of the hard board part facing the first substrate, and partly on the side of the hard board part away from the first substrate.
  • the main control module further includes a plurality of chip matching devices, at least one chip matching device of the plurality of chip matching devices is fixed to the hard board part, and at least one chip matching device is fixed to the first substrate.
  • At least one chip of the plurality of chips is fixed on the side of the hard board part away from the first substrate, at least one chip is fixed on the side of the hard board part facing the first substrate, and at least one chip is fixed On the side of the first substrate facing the hard board portion, at least one chip is fixed on the side of the first substrate away from the hard board portion. That is, devices are arranged on both sides of the hard board part, and devices are arranged on both sides of the first substrate. Therefore, the main control module integrates four layers of devices, and the device arrangement density is high. The device is highly integrated.
  • the main control module further includes a first packaging layer, and the first packaging layer is located on a side of the first substrate away from the hard board portion and is packaged with at least one chip.
  • the first packaging layer may also be packaged with at least one chip matching device.
  • the first packaging layer can perform full-scale packaging or partial packaging of the devices fixed on the side of the first substrate away from the rigid board portion.
  • the main control module further includes a second substrate and a plurality of third elevated columns.
  • the second substrate is located on a side of the first substrate away from the hard board portion, and is stacked and spaced apart from the first substrate.
  • a plurality of third elevated pillars are located between the second substrate and the first substrate, and respectively resist the second substrate and the first substrate.
  • At least one chip of the plurality of chips is fixed to the second substrate.
  • the chip fixed on the second substrate is electrically connected to the hard board part through a plurality of third elevated pillars, the first substrate and the first support.
  • the main control module also includes a first packaging layer and a second packaging layer.
  • the first packaging layer is located between the first substrate and the second substrate, and is used for packaging devices between the first substrate and the second substrate.
  • the second packaging layer is located on the side of the second substrate away from the first substrate, and the second packaging layer can perform partial packaging or full-scale packaging of devices fixed on the side of the second substrate away from the first substrate.
  • devices are arranged on both sides of the hard board part, on both sides of the first substrate, and on both sides of the second substrate.
  • the main control module integrates six layers of devices, and the device arrangement density is high. Modules and wireless headsets are highly integrated.
  • one or more of the rigid board portion, the first substrate, or the second substrate may also have devices arranged on one side.
  • the main control module further includes a second substrate and a second elevated board.
  • the second substrate is located on a side of the hard board part away from the first substrate, and is stacked with the hard board part to be spaced apart from each other.
  • the second elevated board is located between the second base board and the hard board part, and respectively resists the second base board and the hard board part.
  • At least one chip of the plurality of chips is fixed to the second substrate.
  • the chip fixed on the second substrate is electrically connected to the hard board part via the second elevated board.
  • the second elevated board is a hollow structure, and at least one chip is located inside the second elevated board.
  • the main control module fixes the first substrate on one side of the rigid board through the first elevated board, and fixes the second substrate on the other side of the rigid board through the second elevated board, thereby A stacked structure of three-layer circuit boards is formed, and the devices can be flexibly arranged on one or both sides of the three-layer circuit boards to form a stack structure of at least three layers of devices, so the main control module and wireless earphones have a high device arrangement density , High integration.
  • the main control module further includes a first packaging layer, and the first packaging layer is located on a side of the second substrate away from the hard board portion.
  • the first encapsulation layer can partially encapsulate or full-scale the device fixed on the side of the second substrate away from the rigid board portion.
  • the first packaging layer is used to protect the encapsulated devices, and can also provide a supporting surface or a fixing surface when the main control module is assembled with other components in the wireless headset to protect the devices in the main control module.
  • the earplug part is provided with an earpiece module, and the first soft board part is connected to the earpiece module.
  • the ear handle part is provided with a battery, and the second soft board part is connected with the battery.
  • the multiple chips include a micro control unit chip, a power management chip, and an audio chip, and the power management chip and the audio chip are electrically connected to the micro control unit chip.
  • the micro-control unit chip is the processing and control center of the wireless headset and the main control module.
  • the earpiece module is electrically connected to the audio chip through the first soft board part and the hard board part.
  • the audio chip is used to encode audio data to form an electrical signal.
  • the earpiece module is used to convert electrical signals into sound signals.
  • the battery is electrically connected to the power management chip through the second soft board part and the hard board part.
  • the battery is used to power the wireless headset.
  • the power management chip is used to manage the power input and power output of the battery.
  • the multiple functional modules of the wireless headset further include a positive charging terminal and a negative charging terminal.
  • the positive charging terminal is located in the earplug part.
  • the soft-hard combined circuit board of the main control module further includes a third soft board part connected to the hard board part, and the third soft board part is located at the earplug part.
  • the positive charging terminal is connected to the third soft board part, and the power management chip is connected through the third soft board part and the hard board part.
  • the negative charging terminal is located at the bottom of the ear handle.
  • the negative charging terminal is connected to the second soft board part, and is connected to the power management chip via the second soft board part and the hard board part.
  • the multiple functional modules of the wireless headset further include an optical sensor module.
  • the optical sensor module can be used as a proximity detection module to detect whether the wireless headset is installed on the user's ear.
  • the optical sensing module is located at the earplug part, for example, it may be located at a position away from the ear stem part of the earplug part.
  • the optical sensor module can emit detection signals and receive feedback signals through the detection holes of the side shell to achieve detection.
  • the optical sensor module is connected to the first soft board part, and is electrically connected to a plurality of chips in the stack assembly through the first soft board part and the hard board part.
  • the multiple functional modules of the wireless headset further include a bone vibration sensing module.
  • the bone vibration sensor module is used to realize functions such as voiceprint recognition, voice recognition interface, and double-click to start the wireless headset.
  • the bone vibration sensing module is located at the earplug part, for example, it may be located at a position where the earplug part faces the bottom section of the ear stem part.
  • the main shell may be provided with a corresponding interactive through hole, and the bone vibration sensing module interacts with the user through the interactive through hole.
  • the bone vibration sensing module is connected to the first soft board part, and is connected to the chip in the stack assembly through the first soft board part and the hard board part.
  • the multiple functional modules of the wireless headset further include an antenna module.
  • the antenna module includes an antenna support, an antenna and a power feeder.
  • the antenna is fixed to the antenna support, and the antenna and the antenna support are located at the top section and the connecting section of the ear handle.
  • the power feeding element is located at the connecting section of the ear handle part, and the power feeding element is fixed on the second soft board part for feeding power to the antenna.
  • the power feeding member may be a shrapnel, and the power feeding member is welded to the second soft board part.
  • the multiple chips further include a radio frequency chip, and the radio frequency chip is used for modulating and demodulating radio frequency signals.
  • the radio frequency signal works in the Bluetooth frequency band.
  • the radio frequency chip is electrically connected to the micro control unit chip.
  • the antenna is electrically connected to the radio frequency chip via the power feeder, the second soft board part and the hard board part.
  • the radio frequency chip can also be integrated into the micro control unit chip.
  • the multiple functional modules of the wireless headset further include a first microphone module, and the first microphone module is used to convert sound signals into electrical signals.
  • the first microphone module is located at the connecting section of the ear handle. The external sound of the wireless headset can enter the interior of the wireless headset through the first sound inlet, and then be received by the first microphone module.
  • the first microphone module is connected to the second soft board part, and is connected to the chip in the stack assembly through the second soft board part and the hard board part.
  • the multiple functional modules of the wireless headset further include a second microphone module, and the second microphone module is used to convert sound signals into electrical signals.
  • the second microphone module is located at the bottom section of the ear handle. The external sound of the wireless headset can enter the interior of the wireless headset through the second sound inlet, and then be received by the second microphone module.
  • the second microphone module is connected to the second soft board part, and is connected to the chip in the stack assembly through the second soft board part and the hard board part.
  • the rigid-flex circuit board includes at least one layer of flexible dielectric layer and at least two layers of first conductive layers that are stacked, and a flexible dielectric layer is provided between two adjacent first conductive layers. At least one flexible medium layer and at least two first conductive layers form the first soft board portion, the middle layer of the hard board portion, and the second soft board portion.
  • the first soft board part, the middle layer of the hard board part and the second soft board part are integrated and continuous.
  • the flexible medium layer may be made of polyimide material, so that the bending resistance of the first flexible board portion and the second flexible board portion is better.
  • the rigid-flex circuit board also includes at least two hard dielectric layers and at least two second conductive layers that are stacked, and part of the hard dielectric layers of the at least two hard dielectric layers are located on one side of the middle layer of the hard board part.
  • Another part of the hard dielectric layer is located on the other side of the middle layer of the hard plate part
  • part of the second conductive layer of the at least two second conductive layers is located on one side of the middle layer of the hard plate part
  • another part of the second conductive layer Located on the other side of the middle layer of the hard board part, a hard dielectric layer is provided between two adjacent second conductive layers on the same side of the middle layer of the hard board part.
  • a hard dielectric layer is arranged between the two conductive layers and the middle layer of the hard board part.
  • the rigid medium layer may be made of polypropylene material, so that the rigid plate portion has sufficient structural strength.
  • an embodiment of the present application also provides a wireless headset.
  • the wireless earphone has an ear handle part and an earplug part connected to the ear handle part.
  • the wireless earphone includes a main control module.
  • the main control module includes a first substrate, a second substrate, a flexible and hard combined circuit board and a plurality of chips, a flexible and hard combined circuit
  • the board includes a hard board part and a first soft board part and a second soft board part connected to the hard board part.
  • the first substrate and the second substrate are located in the earplug part, and the first substrate and the second substrate are stacked and spaced apart from each other.
  • the rigid plate part is a hollow structure, and the rigid plate part is fixed between the first substrate and the second substrate.
  • the first soft plate The part is located in the earplug part and one end is connected to the hard plate part, one end of the second soft plate part is connected to the hard plate part, and the other end extends to the ear handle part.
  • At least one chip of the plurality of chips is fixed to the first substrate, at least one chip of the plurality of chips is fixed to the second substrate, at least one chip is located inside the hard board portion, and the chips fixed to the first substrate and the second substrate are electrically connected Hard board department.
  • the rigid board portion of the flexible and rigid circuit board is used as an elevated structure between the first substrate and the second substrate, so that a gap is formed between the first substrate and the second substrate, and one side of the first substrate or Devices can be arranged on both sides, and on one or both sides of the second substrate. Therefore, the main control module integrates at least two layers of devices arranged in a stack, thereby having a larger device arrangement density. The main control module and The components of the wireless headset are highly integrated.
  • the main control module further includes a first packaging layer, a second packaging layer, a third packaging layer, and a fourth packaging layer.
  • the first packaging layer is located on the side of the first substrate facing the second substrate, and the first packaging layer is located inside the hard board portion. At least one chip is packaged in the first packaging layer, and at least one chip matching device may also be packaged.
  • the second packaging layer is located on the side of the first substrate away from the second substrate. The second packaging layer encapsulates at least one chip, and may also encapsulate at least one chip matching device. At least one first device may be fixed on the side of the first substrate away from the second substrate.
  • the first device is a device that is not suitable for plastic packaging, and the first device is located outside the second packaging layer.
  • the third packaging layer is located on the side of the second substrate facing the first substrate, and the third packaging layer is located inside the hard board portion.
  • the third packaging layer is packaged with at least one chip, and may also be packaged with at least one chip matching device.
  • the fourth encapsulation layer is located on the side of the second substrate away from the first substrate.
  • the fourth encapsulation layer encapsulates at least one chip, and may also encapsulate at least one chip matching device.
  • At least one second device may be fixed on the side of the second substrate away from the first substrate.
  • the second device is a device that is not suitable for plastic packaging, and the second device is located outside the fourth packaging layer.
  • the main control module further includes a third substrate and a plurality of first elevated columns.
  • the third substrate is located on a side of the first substrate away from the second substrate, and the third substrate and the first substrate are stacked and arranged spaced apart from each other, and a plurality of first elevated posts are fixed between the third substrate and the first substrate.
  • At least one chip and at least one chip matching device are distributed on both sides of the first substrate, both sides of the second substrate, and both sides of the third substrate.
  • the device fixed on the third substrate is electrically connected to the hard board part through a plurality of first elevated pillars and the first substrate.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, a fourth packaging layer, and a fifth packaging layer.
  • the first encapsulation layer is located on the side of the first substrate facing the second substrate, the first encapsulation layer is located inside the hard board portion, and the first encapsulation layer encapsulates at least two devices.
  • the second encapsulation layer is located between the first substrate and the third substrate, and the second encapsulation layer encapsulates the plurality of first elevated pillars and devices located between the first substrate and the third substrate.
  • the third packaging layer is located on a side of the third substrate away from the first substrate, and the third packaging layer encapsulates at least two devices. At least one first device may be fixed on the side of the third substrate away from the first substrate.
  • the first device is a device that is not suitable for plastic packaging, and the first device is located outside the third packaging layer.
  • the fourth packaging layer is located on the side of the second substrate facing the first substrate, and the fourth packaging layer is located on the inner side of the hard board portion.
  • the third encapsulation layer encapsulates at least two devices.
  • the fifth encapsulation layer is located on the side of the second substrate away from the first substrate, and the fifth encapsulation layer encapsulates at least two devices.
  • At least one second device may be fixed on the side of the second substrate away from the first substrate.
  • the second device is a device that is not suitable for plastic packaging, and the second device is located outside the fifth packaging layer.
  • the main control module includes stacked three-layer circuit boards (a first substrate, a second substrate, and a third substrate), and devices can be arranged on both sides of each circuit board, thereby integrating six-layer devices ,
  • the device layout density is high, and the device integration of the main control module and the wireless headset is high.
  • the earplug part is provided with an earpiece module, and the first soft board part is connected to the earpiece module.
  • the ear handle part is provided with a battery, and the second soft board part is connected with the battery.
  • the multiple chips include a micro control unit chip, a power management chip, and an audio chip, and the power management chip and the audio chip are electrically connected to the micro control unit chip.
  • the micro-control unit chip is the processing and control center of the wireless headset and the main control module.
  • the earpiece module is electrically connected to the audio chip through the first soft board part and the hard board part.
  • the audio chip is used to encode audio data to form an electrical signal.
  • the earpiece module is used to convert electrical signals into sound signals.
  • the battery is electrically connected to the power management chip through the second soft board part and the hard board part.
  • the battery is used to power the wireless headset.
  • the power management chip is used to manage the power input and power output of the battery.
  • the embodiment of the present application also provides a main control module.
  • the main control module can be applied to electronic equipment.
  • the main control module includes a rigid-flex circuit board, a first substrate, a first support, and a plurality of chips.
  • the rigid-flex circuit board includes a rigid board portion and a first flexible board portion and a second flexible board portion connected to the rigid board portion.
  • the first substrate and the hard board part are stacked and arranged to be spaced apart from each other. Exemplarily, the projection of the first substrate on the hard board portion falls within the range of the hard board portion.
  • the first supporting member is located between the first substrate and the rigid board portion, and respectively resists the first substrate and the rigid board portion.
  • At least one chip of the plurality of chips is fixed to the hard board portion, at least one chip of the plurality of chips is fixed to the first substrate, and the chip fixed to the first substrate is electrically connected to the hard board portion through the first support.
  • the main control module is fixed on the hard board part and the parts above and below the hard board part to form a stacked assembly. That is, the main control module includes a flexible and hard combined circuit board and a stack assembly, the stack assembly is fixed to the hard board part, and the stack assembly includes a first substrate, a first support, and a plurality of chips.
  • the main control module includes a first substrate and a hard board portion that are stacked, and at least one chip is fixed to the first substrate and at least one chip is fixed to the hard board portion. Therefore, the stack assembly of the main control module can be A multi-layer device stack structure is formed, and the device arrangement density of the main control module is high and the integration degree is high.
  • the chip fixed on the first substrate can be electrically connected to the rigid board portion via the first support, there is no need to provide a flexible circuit board for signal transmission between the first substrate and the rigid board portion.
  • the signal transmission path between the chip and the hard board part of a substrate is realized by the first support, and the signal transmission path is short, which makes the signal transmission quality better.
  • the main control module of this embodiment no longer has a flexible circuit board connected between the first substrate and the rigid board, and can also avoid bending of the flexible circuit board and a large bending angle. The broken area causes a break and an open circuit, leading to product failure or low yield problems.
  • the main control module further includes a plurality of chip matching devices. At least one chip matching device among the plurality of chip matching devices is fixed to the first substrate, and at least one chip matching device is fixed to the hard board part. The chip matching device fixed on the first substrate is electrically connected to the hard board part via the first support. The arrangement positions of multiple chip matching devices can be arranged with their corresponding chips.
  • the first support includes a plurality of first elevated columns, and the plurality of first elevated columns are located between the rigid board portion and the first base plate and fixed to the rigid board portion.
  • the main control module further includes a first packaging layer, the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion. At this time, the end surface of one end of the plurality of first elevated columns away from the hard board portion is exposed to the first packaging layer, and the first substrate can be connected to the end surface of the first elevated column.
  • the first encapsulation layer also encapsulates a plurality of chip matching devices on the hard board part. The first packaging layer can protect the packaged devices, so that the main control module has higher reliability and longer service life.
  • the first encapsulation layer directly encapsulates multiple devices on the hard board portion, so that multiple devices can directly communicate with the external functional module through the hard board portion and the first soft board portion or the second soft board portion.
  • the connection method of this embodiment is more direct and has a simpler structure.
  • the rigid board portion includes a first surface facing the first substrate.
  • the first surface includes a first encapsulation area and a first non-encapsulation area, the first encapsulation layer is located in the first encapsulation area, and the first non-encapsulation area is located around the first encapsulation area.
  • the first non-encapsulated area can provide support space for the mold during the molding process of the first encapsulation layer, so as to avoid the rigid-flex circuit board due to the mold resisting the first flexible board portion or the second flexible board portion Produce damage, so as to ensure the production yield of the main control module.
  • the main control module further includes at least one first device, and the at least one first device is fixed to the first non-packaged area.
  • the first device is a device that is not suitable for plastic packaging.
  • the first non-encapsulated area of the hard board part not only provides a holding space for the mold during the molding process of the first packaging layer, but also is used to arrange the first devices that are not suitable for packaging, so the main control module is complex. The space of the first non-encapsulated area is used, and the space utilization rate is improved.
  • the first base plate is welded with a plurality of first elevated columns.
  • the main control module further includes a second encapsulation layer, the second encapsulation layer is located on the side of the first substrate away from the hard board portion, and the second encapsulation layer encapsulates at least one chip on the first substrate.
  • the second packaging layer can also package at least one chip matching device on the first substrate. The second packaging layer can protect the packaged devices, so that the main control module has a higher reliability and a longer service life.
  • the first support member further includes a plurality of second elevated columns, the plurality of second elevated columns are fixed to the side of the first base plate facing the rigid plate portion, and the plurality of second elevated columns Welded in a one-to-one correspondence with the plurality of first elevated columns.
  • the main control module also includes a second encapsulation layer and a third encapsulation layer.
  • the second encapsulation layer is located on the side of the first substrate away from the hard board portion.
  • the second encapsulation layer encapsulates at least one chip on the first substrate.
  • the third encapsulation layer Located on the side of the first substrate facing the hard board portion, the third packaging layer encapsulates the plurality of second elevated pillars and at least one chip on the first substrate.
  • the first support since the first support includes a first elevated column and a second elevated column that are stacked, the first support has a sufficient height, so the distance between the first base plate and the rigid plate portion is relatively large.
  • Two layers of devices can be arranged between the first substrate and the hard board, so that the main control module integrates three layers of devices in the direction perpendicular to the hard board.
  • the device arrangement density of the main control module is greater and the integration level is higher. high.
  • the arrangement of the multiple chips of the main control module in the three-layer device is more flexible and diverse.
  • the main control module further includes at least one second device, and the at least one second device is fixed on a side of the first substrate away from the hard board portion and located outside the second packaging layer.
  • the second device is a device that is not suitable for plastic packaging, including but not limited to a surface acoustic wave filter with a cavity, a crystal oscillator with a cavity, and a pressure-sensitive device.
  • the devices in the main control module that are not suitable for plastic packaging can be flexibly arranged on the hard board part and/or the first substrate according to the function selection and the arrangement position of the chips, which improves the device row of the main control module. Flexibility and diversification of cloth.
  • the main control module further includes a second substrate, a second packaging layer, a third packaging layer, and a plurality of third elevated pillars.
  • the first substrate is welded with a plurality of first elevated pillars, the chip fixed to the first substrate is located on the side of the first substrate away from the rigid board portion, the second substrate is located on the side of the first substrate away from the rigid board portion, and the second substrate is connected to the The first substrates are stacked to be spaced apart from each other, and a plurality of third elevated pillars are located between the second substrate and the first substrate, and respectively resist the second substrate and the first substrate.
  • the second packaging layer is located between the second substrate and the first substrate, and the plurality of third elevated pillars and the chips fixed to the first substrate are packaged in the second packaging layer. At least one chip of the plurality of chips is packaged in the second packaging layer and fixed to the second substrate.
  • the third packaging layer is located on a side of the second substrate away from the first substrate, and at least one chip of the plurality of chips is packaged in the third packaging layer and fixed to the second substrate.
  • the chip fixed on the second substrate is electrically connected to the hard board part through a plurality of third elevated pillars, a first substrate and a plurality of first elevated pillars.
  • the main control module is located on the side of the rigid board facing the first substrate, the side of the first substrate away from the rigid board, the side of the second substrate facing the first substrate, and the second substrate away from the first substrate.
  • the devices are arranged on one side of the substrate, so that four layers of devices are stacked in the direction perpendicular to the hard board portion, which improves the arrangement density and integration of the devices.
  • the first packaging layer contacts the first substrate.
  • the main control module further includes a second packaging layer, and the second packaging layer is fixed on the side of the first substrate away from the hard board portion.
  • the chip fixed on the first substrate is partially encapsulated in the first encapsulation layer and partially encapsulated in the second encapsulation layer.
  • the main control module has devices arranged on the side of the hard board part facing the first substrate, the side of the first substrate facing the hard board part, and the side of the first substrate away from the hard board part.
  • Three layers of devices are stacked in the direction perpendicular to the hard board, so the device arrangement density of the main control module is relatively high and the integration level is relatively high.
  • the main control module further includes a fourth encapsulation layer, the fourth encapsulation layer is fixed on the side of the hard board portion away from the first substrate, and at least one of the chips fixed on the hard board portion is packaged In the fourth encapsulation layer.
  • the main control module has devices arranged on the side of the hard board part away from the first substrate, the side of the hard board part facing the first substrate, and the side of the first substrate away from the hard board part, so that Three layers of devices are stacked in the direction perpendicular to the hard board, so the device arrangement density of the main control module is relatively high and the integration level is relatively high.
  • the first supporting member includes a plurality of first elevated columns and a plurality of second elevated columns arranged in a stack, the plurality of first elevated columns are fixed to the rigid plate part, and the plurality of second elevated columns
  • the elevated pillars are fixed to the first base plate, and the plurality of second elevated pillars are welded in a one-to-one correspondence with the plurality of first elevated pillars.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, and a fourth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion.
  • the second packaging layer is located on the side of the first substrate facing the hard board portion, and the second packaging layer encapsulates a plurality of second elevated pillars and at least one chip on the first substrate.
  • the third packaging layer is located on the side of the first substrate away from the hard board portion, and the third packaging layer encapsulates at least one chip on the first substrate.
  • the fourth encapsulation layer is located on the side of the hard board part away from the first substrate, and the fourth encapsulation layer encapsulates at least one chip on the hard board part.
  • the main control module has devices arranged on both sides of the hard board part and on both sides of the first substrate, so that four layers of devices are stacked in a direction perpendicular to the hard board part, so the main control module
  • the device arrangement density is higher and the integration degree is higher.
  • the main control module further includes a third substrate and a second support.
  • the third substrate is located on the side of the hard board part away from the first substrate, and is stacked with the hard board part spaced apart from each other.
  • the second support is located between the third substrate and the hard board part, and is respectively connected to the third substrate and the hard board part.
  • at least one chip of the plurality of chips is fixed on the third substrate, and the chip fixed on the third substrate is electrically connected to the hard board part through the second support.
  • one or more layers of devices can be stacked on both sides of the hard board portion, which further improves the device integration of the main control module.
  • the first supporting member includes a plurality of first elevated columns and a plurality of second elevated columns arranged in a stack, the plurality of first elevated columns are fixed to the rigid plate part, and the plurality of second elevated columns
  • the elevated pillars are fixed to the first base plate, and the plurality of second elevated pillars are welded in a one-to-one correspondence with the plurality of first elevated pillars.
  • the second support includes a plurality of fourth elevated pillars, and the plurality of fourth elevated pillars are fixed to the rigid board part.
  • the third substrate is welded with a plurality of fourth elevated pillars, and the chip fixed on the third substrate is located on the side of the third substrate away from the hard board portion.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, a fourth packaging layer, and a fifth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion.
  • the second packaging layer is located on the side of the first substrate facing the hard board portion, and the second packaging layer encapsulates a plurality of second elevated pillars and at least one chip on the first substrate.
  • the third packaging layer is located on the side of the first substrate away from the hard board portion, and the third packaging layer encapsulates at least one chip on the first substrate.
  • the fourth packaging layer is located on a side of the hard board part away from the first substrate, and the fourth packaging layer encapsulates a plurality of fourth elevated pillars and at least one chip on the hard board part.
  • the fifth encapsulation layer is located on the side of the third substrate away from the hard board portion, and the fifth encapsulation layer encapsulates at least one chip on the third substrate.
  • the main control module arranges devices on both sides of the rigid board portion, both sides of the first substrate, and the side of the third substrate away from the rigid board portion, so that the components are arranged in a direction perpendicular to the rigid board portion.
  • the first supporting member includes a plurality of first elevated columns and a plurality of second elevated columns arranged in a stack, the plurality of first elevated columns are fixed to the rigid plate part, and the plurality of second elevated columns
  • the elevated pillars are fixed to the first base plate, and the plurality of second elevated pillars are welded in a one-to-one correspondence with the plurality of first elevated pillars.
  • the second supporting member includes a plurality of fourth elevated columns and a plurality of fifth elevated columns that are stacked, wherein the plurality of fourth elevated columns are fixed to the rigid plate portion, and the plurality of fifth elevated columns are fixed to the third base plate, The plurality of fifth elevated columns and the plurality of fourth elevated columns are welded in one-to-one correspondence.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, a fourth packaging layer, a fifth packaging layer, and a sixth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion.
  • the second packaging layer is located on the side of the first substrate facing the hard board portion, and the second packaging layer encapsulates a plurality of second elevated pillars and at least one chip on the first substrate.
  • the third packaging layer is located on the side of the first substrate away from the hard board portion, and the third packaging layer encapsulates at least one chip on the first substrate.
  • the fourth packaging layer is located on a side of the hard board part away from the first substrate, and the fourth packaging layer encapsulates a plurality of fourth elevated pillars and at least one chip on the hard board part.
  • the fifth packaging layer is located on the side of the third substrate facing the hard board portion, and the fifth packaging layer encapsulates the plurality of fifth elevated pillars and at least one chip on the third substrate.
  • the sixth packaging layer is located on a side of the third substrate away from the hard board portion, and the sixth packaging layer encapsulates at least one chip on the third substrate.
  • the main control module arranges devices on both sides of the rigid board, both sides of the first substrate, and both sides of the third substrate, so that six layers are stacked in a direction perpendicular to the rigid board. Therefore, the device arrangement density of the main control module is relatively high, and the integration level is relatively high.
  • the first supporting member includes a plurality of first elevated columns and a plurality of second elevated columns arranged in a stack, the plurality of first elevated columns are fixed to the rigid plate part, and the plurality of second elevated columns
  • the elevated pillars are fixed to the first base plate, and the plurality of second elevated pillars are welded in a one-to-one correspondence with the plurality of first elevated pillars.
  • the second supporting member includes a plurality of fourth elevated columns arranged in a stack, and the plurality of fourth elevated columns are fixed to the rigid board part.
  • the third base plate is welded with a plurality of fourth elevated columns.
  • the main control module also includes a fourth substrate and a plurality of sixth elevated columns.
  • the fourth substrate is located on the side of the third substrate away from the hard board portion, and is stacked with the third substrate spaced apart from each other.
  • a plurality of sixth elevated pillars are located between the fourth substrate and the third substrate, and support the fourth substrate and the third substrate.
  • the third substrate At least one chip of the plurality of chips is fixed to the fourth substrate.
  • the chip fixed on the fourth substrate is electrically connected to the hard board part through the sixth elevated post, the third substrate and the second support.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, a fourth packaging layer, a fifth packaging layer, and a sixth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate, and the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion.
  • the second packaging layer is located on the side of the first substrate facing the hard board portion, and the second packaging layer encapsulates a plurality of second elevated pillars and at least one chip on the first substrate.
  • the third packaging layer is located on the side of the first substrate away from the hard board portion, and the third packaging layer encapsulates at least one chip on the first substrate.
  • the fourth packaging layer is located on a side of the rigid board part away from the first substrate, and the fourth packaging layer encapsulates the plurality of fourth elevated pillars and at least one chip on the rigid board part.
  • the fifth encapsulation layer is located between the third substrate and the fourth substrate.
  • the fifth encapsulation layer encapsulates the plurality of sixth elevated pillars and at least one chip on the third substrate, and encapsulates the at least one chip on the fourth substrate.
  • the sixth packaging layer is located on a side of the fourth substrate away from the third substrate, and the sixth packaging layer encapsulates at least one chip on the fourth substrate.
  • the main control module has devices arranged on both sides of the rigid board, on both sides of the first substrate, on the side of the third substrate away from the rigid board, and on both sides of the fourth substrate. Seven layers of devices are stacked in the direction of the hard board, so the device arrangement density of the main control module is relatively high, and the integration level is relatively high.
  • the first support member includes a plurality of first elevated columns
  • the second support member includes a plurality of fourth elevated columns.
  • the main control module also includes a first packaging layer, a second packaging layer, a fourth packaging layer, and a fifth packaging layer.
  • the first packaging layer is located between the rigid board portion and the first substrate.
  • the first packaging layer encapsulates the plurality of first elevated pillars and at least one chip on the rigid board portion, and encapsulates the at least one chip on the first substrate. At this time, the first encapsulation layer encapsulates the device located between the rigid board portion and the first substrate.
  • the fourth packaging layer is located between the rigid board portion and the third substrate.
  • the fourth packaging layer encapsulates the plurality of fourth elevated pillars and at least one chip on the rigid board portion, and encapsulates the at least one chip on the third substrate.
  • the fifth encapsulation layer is fixed on the side of the third substrate away from the hard board portion, and the fifth encapsulation layer encapsulates at least one chip on the third substrate.
  • the main control module arranges devices on both sides of the rigid board portion, both sides of the first substrate, and both sides of the third substrate, thereby stacking six layers of devices in a direction perpendicular to the rigid board portion Therefore, the device arrangement density of the main control module is higher and the integration degree is higher.
  • the first support member is a first elevated slab
  • the first elevated slab is a hollow structure
  • at least one chip is located inside the first elevated slab.
  • the first elevated board is a circuit board structure
  • the first elevated board may be fixed to the rigid board part by assembly, or may be integrally formed with the rigid board part.
  • the main control module supports the device arrangement space between the first substrate and the hard board portion through the first elevated board, so that the main control module can integrate at least two layers of devices, thereby improving the device arrangement Density, the device integration of the main control module is relatively high.
  • the devices fixed to the hard board portion are all located on the side of the hard board portion facing the first substrate, and some devices are located inside the first elevated board, and some devices are located outside the first elevated board.
  • the device fixed to the hard board part is partly located on the side of the hard board part facing the first substrate, and partly on the side of the hard board part away from the first substrate.
  • the main control module further includes a plurality of chip matching devices, at least one chip matching device of the plurality of chip matching devices is fixed to the hard board part, and at least one chip matching device is fixed to the first substrate.
  • At least one chip of the plurality of chips is fixed on the side of the hard board part away from the first substrate, at least one chip is fixed on the side of the hard board part facing the first substrate, and at least one chip is fixed On the side of the first substrate facing the hard board portion, at least one chip is fixed on the side of the first substrate away from the hard board portion. That is, devices are arranged on both sides of the hard board part, and devices are arranged on both sides of the first substrate, so the main control module integrates four layers of devices, the device arrangement density is high, and the device integration of the main control module high.
  • the main control module further includes a first packaging layer, and the first packaging layer is located on a side of the first substrate away from the hard board portion and is packaged with at least one chip.
  • the first packaging layer may also be packaged with at least one chip matching device.
  • the first packaging layer can perform full-scale packaging or partial packaging of the devices fixed on the side of the first substrate away from the rigid board portion.
  • the main control module further includes a second substrate and a plurality of third elevated columns.
  • the second substrate is located on a side of the first substrate away from the hard board portion, and is stacked and spaced apart from the first substrate.
  • a plurality of third elevated pillars are located between the second substrate and the first substrate, and respectively resist the second substrate and the first substrate.
  • At least one chip of the plurality of chips is fixed to the second substrate.
  • the chip fixed on the second substrate is electrically connected to the hard board part through a plurality of third elevated pillars, the first substrate and the first support.
  • the main control module also includes a first packaging layer and a second packaging layer.
  • the first packaging layer is located between the first substrate and the second substrate, and is used for packaging devices between the first substrate and the second substrate.
  • the second packaging layer is located on the side of the second substrate away from the first substrate, and the second packaging layer can perform partial packaging or full-scale packaging of devices fixed on the side of the second substrate away from the first substrate.
  • devices are arranged on both sides of the hard board part, on both sides of the first substrate, and on both sides of the second substrate.
  • the main control module integrates six layers of devices, and the device arrangement density is high.
  • the module has a high degree of device integration.
  • one or more of the rigid board portion, the first substrate, or the second substrate may also have devices arranged on one side.
  • the main control module further includes a second substrate and a second elevated board.
  • the second substrate is located on a side of the hard board part away from the first substrate, and is stacked with the hard board part to be spaced apart from each other.
  • the second elevated board is located between the second base board and the hard board part, and respectively resists the second base board and the hard board part.
  • At least one chip of the plurality of chips is fixed to the second substrate.
  • the chip fixed on the second substrate is electrically connected to the hard board part via the second elevated board.
  • the second elevated board is a hollow structure, and at least one chip is located inside the second elevated board.
  • the main control module fixes the first substrate on one side of the rigid board through the first elevated board, and fixes the second substrate on the other side of the rigid board through the second elevated board, thereby A stack structure of three-layer circuit boards is formed.
  • Devices can be flexibly arranged on one or both sides of the three-layer circuit boards to form a stack structure of at least three layers of devices. Therefore, the device arrangement density of the main control module is high and the integration is high. high.
  • the rigid-flex circuit board includes at least one layer of flexible dielectric layer and at least two layers of first conductive layers that are stacked, and a flexible dielectric layer is provided between two adjacent first conductive layers. At least one flexible medium layer and at least two first conductive layers form the first soft board portion, the middle layer of the hard board portion, and the second soft board portion.
  • the first soft board part, the middle layer of the hard board part and the second soft board part are integrated and continuous.
  • the flexible medium layer may be made of polyimide material, so that the bending resistance of the first flexible board portion and the second flexible board portion is better.
  • the rigid-flex circuit board also includes at least two hard dielectric layers and at least two second conductive layers that are stacked, and part of the hard dielectric layers of the at least two hard dielectric layers are located on one side of the middle layer of the hard board part.
  • Another part of the hard dielectric layer is located on the other side of the middle layer of the hard plate part
  • part of the second conductive layer of the at least two second conductive layers is located on one side of the middle layer of the hard plate part
  • another part of the second conductive layer Located on the other side of the middle layer of the hard board part, a hard dielectric layer is provided between two adjacent second conductive layers on the same side of the middle layer of the hard board part.
  • a hard dielectric layer is arranged between the two conductive layers and the middle layer of the hard board part.
  • the rigid medium layer may be made of polypropylene material, so that the rigid plate portion has sufficient structural strength.
  • the embodiment of the present application also provides a main control module.
  • the main control module includes a first substrate, a second substrate, a rigid-flex circuit board and a plurality of chips.
  • the rigid-flex circuit board includes a rigid board portion and a first flexible board portion and a second flexible board portion connected to the rigid board portion.
  • the first substrate and the second substrate are located in the earplug part, and the first substrate and the second substrate are stacked and spaced apart from each other.
  • the rigid plate part is a hollow structure, and the rigid plate part is fixed between the first substrate and the second substrate.
  • the first soft plate The part is located in the earplug part and one end is connected to the hard plate part, one end of the second soft plate part is connected to the hard plate part, and the other end extends to the ear handle part.
  • At least one chip of the plurality of chips is fixed to the first substrate, at least one chip of the plurality of chips is fixed to the second substrate, at least one chip is located inside the hard board portion, and the chips fixed to the first substrate and the second substrate are electrically connected Hard board department.
  • the rigid board portion of the flexible and rigid circuit board is used as an elevated structure between the first substrate and the second substrate, so that a gap is formed between the first substrate and the second substrate, and one side of the first substrate or Devices can be arranged on both sides, and on one or both sides of the second substrate. Therefore, the main control module integrates at least two layers of devices arranged in a stack, thereby having a larger device arrangement density. The device is highly integrated.
  • the main control module further includes a first packaging layer, a second packaging layer, a third packaging layer, and a fourth packaging layer.
  • the first packaging layer is located on the side of the first substrate facing the second substrate, and the first packaging layer is located inside the hard board portion. At least one chip is packaged in the first packaging layer, and at least one chip matching device may also be packaged.
  • the second packaging layer is located on the side of the first substrate away from the second substrate. The second packaging layer encapsulates at least one chip, and may also encapsulate at least one chip matching device. At least one first device may be fixed on the side of the first substrate away from the second substrate.
  • the first device is a device that is not suitable for plastic packaging, and the first device is located outside the second packaging layer.
  • the third packaging layer is located on the side of the second substrate facing the first substrate, and the third packaging layer is located inside the hard board portion.
  • the third packaging layer is packaged with at least one chip, and may also be packaged with at least one chip matching device.
  • the fourth packaging layer is located on a side of the second substrate away from the first substrate.
  • the fourth packaging layer encapsulates at least one chip, and may also encapsulate at least one chip matching device.
  • At least one second device may be fixed on the side of the second substrate away from the first substrate.
  • the second device is a device that is not suitable for plastic packaging, and the second device is located outside the fourth packaging layer.
  • the main control module further includes a third substrate and a plurality of first elevated columns.
  • the third substrate is located on a side of the first substrate away from the second substrate, the third substrate and the first substrate are stacked and arranged at intervals, and a plurality of first elevated posts are fixed between the third substrate and the first substrate.
  • At least one chip and at least one chip matching device are distributed on both sides of the first substrate, both sides of the second substrate, and both sides of the third substrate.
  • the device fixed on the third substrate is electrically connected to the hard board part through a plurality of first elevated pillars and the first substrate.
  • the main control module also includes a first packaging layer, a second packaging layer, a third packaging layer, a fourth packaging layer, and a fifth packaging layer.
  • the first encapsulation layer is located on the side of the first substrate facing the second substrate, the first encapsulation layer is located inside the hard board portion, and the first encapsulation layer encapsulates at least two devices.
  • the second encapsulation layer is located between the first substrate and the third substrate, and the second encapsulation layer encapsulates the plurality of first elevated pillars and devices located between the first substrate and the third substrate.
  • the third packaging layer is located on a side of the third substrate away from the first substrate, and the third packaging layer encapsulates at least two devices. At least one first device may be fixed on the side of the third substrate away from the first substrate.
  • the first device is a device that is not suitable for plastic packaging, and the first device is located outside the third packaging layer.
  • the fourth packaging layer is located on the side of the second substrate facing the first substrate, and the fourth packaging layer is located on the inner side of the hard board portion.
  • the third encapsulation layer encapsulates at least two devices.
  • the fifth encapsulation layer is located on the side of the second substrate away from the first substrate, and the fifth encapsulation layer encapsulates at least two devices.
  • At least one second device may be fixed on the side of the second substrate away from the first substrate.
  • the second device is a device that is not suitable for plastic packaging, and the second device is located outside the fifth packaging layer.
  • the main control module includes stacked three-layer circuit boards (a first substrate, a second substrate, and a third substrate), and devices can be arranged on both sides of each circuit board, thereby integrating six-layer devices ,
  • the device arrangement density is high, and the device integration of the main control module is high.
  • FIG. 1 is a schematic structural diagram of a wireless headset provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the structure of the earphone body shown in FIG. 1;
  • Fig. 3 is a partial exploded schematic diagram of the earphone body shown in Fig. 2;
  • FIG. 4 is a schematic diagram of the internal structure of the earphone body shown in FIG. 2;
  • FIG. 5 is a schematic structural diagram of an expanded structure of the main control module shown in FIG. 3 in some embodiments;
  • FIG. 6 is a schematic structural diagram of an expanded structure of the main control module shown in FIG. 3 in other embodiments;
  • FIG. 7 is a schematic diagram of the internal structure of the soft-hard combined circuit board of the main control module shown in FIG. 3;
  • FIG. 8 is a schematic structural diagram of the main control module shown in FIG. 2 in the first embodiment
  • FIG. 9 is a top view of a partial structure of the main control module shown in FIG. 8;
  • Fig. 10 is a structural schematic diagram 1 of the main control module shown in Fig. 8 during the manufacturing process;
  • FIG. 11 is a second structural diagram of the main control module shown in FIG. 8 during the manufacturing process
  • FIG. 12 is a third structural diagram of the main control module shown in FIG. 8 during the manufacturing process
  • FIG. 13 is a schematic structural diagram of the main control module shown in FIG. 2 in the second embodiment
  • FIG. 14 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the third embodiment
  • FIG. 15 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the fourth embodiment.
  • FIG. 16 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the fifth embodiment
  • Fig. 17 is a structural schematic diagram 1 of the main control module shown in Fig. 16 during the manufacturing process;
  • Fig. 18 is a second structural diagram of the main control module shown in Fig. 16 during the manufacturing process
  • FIG. 19 is a third structural diagram of the main control module shown in FIG. 16 during the manufacturing process.
  • FIG. 20 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the sixth embodiment.
  • 21 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the seventh embodiment.
  • FIG. 22 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the eighth embodiment.
  • FIG. 23 is a schematic structural diagram of the main control module shown in FIG. 2 in the ninth embodiment.
  • FIG. 24 is a schematic structural diagram of the main control module shown in FIG. 2 in the tenth embodiment
  • 25 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the eleventh embodiment
  • Fig. 26 is a schematic structural diagram of the main control module shown in Fig. 2 in the twelfth embodiment
  • FIG. 27 is a schematic structural diagram of the main control module shown in FIG. 2 in the thirteenth embodiment.
  • FIG. 28 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the fourteenth embodiment
  • FIG. 29 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the fifteenth embodiment
  • FIG. 30 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the sixteenth embodiment
  • FIG. 31 is a schematic diagram of the structure of the main control module shown in FIG. 2 in the seventeenth embodiment
  • Fig. 32 is a schematic diagram of the structure of the main control module shown in Fig. 2 in the eighteenth embodiment.
  • the embodiments of the present application provide a wireless headset, which can be wirelessly connected (for example, Bluetooth connection) to electronic devices such as mobile phones, laptops, tablets, smart watches, etc., to be used in conjunction with the electronic devices to process media, calls, etc. of the electronic devices Audio service, or deal with some other data services.
  • the audio service may include media services such as playing music for users, recording, sound in video files, background music in games, and call notification sounds; the audio service may also include phone calls, WeChat voice messages, audio calls, and video calls.
  • call service scenarios such as calls, games, and voice assistants, the voice data of the peer is played for the user, or the voice data of the user is collected and sent to the peer.
  • FIG. 1 is a schematic structural diagram of a wireless headset 1000 provided by an embodiment of the present application.
  • the wireless headset 1000 may be a true wireless stereo (TWS) headset.
  • the wireless earphone 1000 may include two earphone bodies 100.
  • the two earphone bodies 100 can be used as a left-ear earphone and a right-ear earphone respectively.
  • the left-ear earphone can be used with the user's left ear
  • the right-ear earphone can be used with the user's right ear.
  • the wireless earphone 1000 may be an in-ear earphone or a semi-in-ear earphone.
  • the wireless earphone 1000 is a semi-in-ear earphone as an example for description.
  • the wireless headset 1000 may be other types of wireless headsets, such as a head-mounted wireless headset or a neck-mounted wireless headset. In some other embodiments of the present application, the wireless headset 1000 may include only one headset body 100.
  • the wireless headset 1000 may further include a battery box 200.
  • the battery box 200 includes a box body 2001 and a box cover 2002 movably connected to the box body 2001.
  • the box cover 2002 can be rotatably connected to the box body 2001, or detachably buckled and connected to the box body 2001.
  • a storage space 2003 is formed in the battery box 200, and the earphone body 100 can be accommodated in the storage space 2003.
  • the battery box 200 is provided with a charging terminal (not shown in the figure). When the charging terminal contacts the charging terminal (not shown in the figure) of the earphone body 100, the earphone body 100 can be charged.
  • the charging terminal of the battery box 200 can be a pogo pin, an elastic sheet, a conductive block, a conductive patch, a conductive sheet, a pin, a plug, a contact pad, a jack or a socket, etc.
  • the embodiment of the present application is related to the battery box 200
  • the specific type of charging terminal is not strictly limited.
  • FIG. 2 is a schematic diagram of the structure of the earphone body 100 shown in FIG. 1.
  • the earphone body 100 has an ear handle part 1001 and an ear plug part 1002 connected to the ear handle part 1001.
  • the earplug part 1002 is used to partially embed the user's ear.
  • the ear handle 1001 is used to contact the user's ear.
  • the earplug part 1002 is partially embedded in the user's ear, and the ear handle 1001 is located outside the user's ear and contacts the user's ear.
  • the ear handle 1001 includes a connecting section 1003 connected with the earplug section 1002, and a top section 1004 and a bottom section 1005 located on both sides of the connecting section 1003.
  • the ear handle 1001 may not include the top section 1004, that is, the ear handle 1001 includes the connecting section 1003 and the bottom section 1005.
  • FIG. 3 is a partial exploded view of the earphone body 100 shown in FIG. 2.
  • the earphone body 100 includes a housing 10.
  • the housing 10 is used for accommodating other parts of the earphone body 100 to fix and protect the other parts.
  • the housing 10 includes a main housing 101, a bottom housing 102, and a side housing 103.
  • the main housing 101 is partly located at the ear handle part 1001 of the earphone body 100 and partly located at the earplug part 1002 of the earphone body 100.
  • the main housing 101 forms a first opening 1011 at the bottom section 1005 of the ear handle part 1001 of the earphone body 100, and a second opening 1012 at the earplug part 1002 of the earphone body 100.
  • Other components of the earphone body 100 can be inserted into the main housing 101 from the first opening 1011 or the second opening 1012.
  • the bottom shell 102 is located at the bottom section 1005 of the ear handle 1001 of the earphone body 100 and is fixedly connected to the main shell 101, and the bottom shell 102 is installed in the first opening 1011.
  • the side shell 103 is located at the earplug part 1002 of the earphone body 100 and is fixedly connected to the main shell 101, and the side shell 103 is installed in the second opening 1012.
  • connection between the bottom housing 102 and the main housing 101 is a detachable connection (such as a snap connection, a threaded connection, etc.) to facilitate subsequent repairs or maintenance of the earphone body 100.
  • the connection between the bottom housing 102 and the main housing 101 may also be a non-detachable connection (for example, glue connection) to reduce the risk of accidental fall of the bottom housing 102, so that the headset body 100 is more reliable. high.
  • connection between the side housing 103 and the main housing 101 is a detachable connection (such as a snap connection, a threaded connection, etc.), so as to facilitate subsequent repairs or maintenance of the earphone body 100.
  • the connection between the side housing 103 and the main housing 101 may also be a non-detachable connection (for example, glue connection) to reduce the risk of accidental fall off of the side housing 103, so that the earphone body 100 is reliable. Higher sex.
  • the side shell 103 is provided with at least one sound hole 1031, so that the sound inside the housing 10 can be transmitted to the outside of the housing 10 through the sound hole 1031.
  • “at least one” includes “one” and “two or more”.
  • the side shell 103 may also be provided with at least one detection hole 1032. The detection signals of certain detection modules located inside the housing 10 can be transmitted to the outside of the housing 10 through the detection hole 1032, or through the detection hole 1032. Receive feedback signals from the outside of the housing 10.
  • the part of the main housing 101 at the connecting section 1003 of the ear handle 1001 is provided with at least one first sound inlet 1013, so that the sound from the outside of the housing 10 can be transmitted to the inside of the housing 10 through the first sound inlet 1013.
  • the bottom shell 102 is provided with at least one second sound inlet hole 1021 so that the sound from the outside of the housing 10 can be transmitted to the inside of the housing 10 through the second sound inlet hole 1021.
  • the embodiment of the present application does not strictly limit the shape, position, number, etc. of the sound outlet hole 1031, the detection hole 1032, the first sound inlet hole 1013, and the second sound inlet hole 1021.
  • FIG. 4 is a schematic diagram of the internal structure of the earphone body 100 shown in FIG. 2.
  • the headset body 100 includes a main control module 20.
  • the main control module 20 is housed in the housing 10.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the rigid board portion 11 is located in the earplug portion 1002, and the first flexible board portion 12 is located in the earplug portion 1002 and one end is connected to the hard board part 11, one end of the second soft board part 13 is connected to the hard board part 11, and the other end extends to the ear handle part 1001.
  • the stack assembly 2 is fixed to the rigid board portion 11.
  • the vertical direction of the hard plate portion 11 may be a larger dimension in the inner space of the earplug portion 1002.
  • the stack assembly 2 is stacked with multiple layers of devices (not shown in the figure) in a direction perpendicular to the rigid board portion 11 to increase the device arrangement density.
  • the stacked assembly 2 includes a plurality of chips (not shown in the figure) and a plurality of chip matching devices (not shown in the figure).
  • the chip matching device includes one or more of capacitors, resistors, and inductors.
  • the stack assembly 2 may also include one or more of a substrate, an elevated column, an elevated plate, and an encapsulation layer.
  • "a plurality of” means “two or more", and “above” includes the number and the number greater than the number.
  • the headphone body 100 also includes a plurality of functional modules. At least one of the plurality of functional modules is located in the earplug part 1002, and at least one of the plurality of functional modules is located in the ear handle part 1001. Some devices in the stack assembly 2 are electrically connected to the functional module located in the earplug portion 1002 through the hard board portion 11 and the first soft board portion 12, and some devices in the stack assembly 2 pass through the hard board portion 11 and the second soft board portion 13 It is electrically connected to the functional module at the ear handle 1001.
  • the stack assembly 2 of the main control module 20 can be electrically connected to multiple functional modules of the earphone body 100 through the soft and hard circuit board 1, so the stack assembly 2 can stack multiple layers of devices, so the earphone
  • the chips and chip matching devices of the main body 100 can be fully integrated or mostly integrated in the stack assembly 2, so as to completely integrate the control system of the headset body 100 into the stack assembly 2, so that the traditional wireless headset 1000 is responsible for carrying the control system
  • the multiple auxiliary circuit boards of the device are omitted, and the device integration degree of the main control module 20 and the earphone body 100 is improved.
  • the thickness dimension of the stacked assembly 2 in which the multilayer devices are stacked in the direction perpendicular to the hard board portion 11 is relatively large. Since the stack assembly 2 is fixed to the rigid board portion 11, and the rigid board portion 11 is located in the earplug portion 1002, the stack assembly 2 is located in the earplug portion 1002. The installation of the stack assembly 2 is less difficult, and the stack assembly 2 can make full use of the inner earplug portion 1002. Cavity space, thereby improving the space utilization rate of the earphone body 100.
  • the outer contour shape of the rigid plate portion 11 and the stack assembly 2 can be adapted to the shape of the inner cavity of the earplug portion 1002, for example, a circular or approximately circular outer contour is adopted, thereby further improving the earphone body 100 Space utilization.
  • the functional modules of the earphone body 100 include an earpiece module 30 and a battery 40.
  • the multiple chips (not shown in the figure) of the stack assembly 2 include a microcontroller unit (MCU) chip, a power management chip, and an audio chip.
  • the power management chip and the audio chip are electrically connected to the microcontroller unit chip.
  • the micro-control unit chip is the processing and control center of the headset body 100 and the main control module 20.
  • the earpiece module 30 is provided in the earplug part 1002, and the first soft board part 12 is connected to the earpiece module 30.
  • the earpiece module 30 is electrically connected to the audio chip in the stack assembly 2 via the first soft board portion 12 and the hard board portion 11.
  • the audio chip is used to encode audio data to form an electrical signal.
  • the earpiece module 30 is used for converting electrical signals into sound signals. Among them, the sound signal can be transmitted to the outside of the earphone body 100 through the sound hole 1031 of the side shell 103.
  • the battery 40 is disposed on the ear handle part 1001, and the second soft board part 13 is connected to the battery 40.
  • the battery 40 is electrically connected to the power management chip in the stack assembly 2 via the second flexible board portion 13 and the hard board portion 11.
  • the battery 40 is used to power the earphone body 100.
  • the power management chip is used to manage the power input and power output of the battery 40.
  • the micro-control unit chip is also called a single-chip microcomputer or a single-chip microcomputer.
  • the micro-control unit chip appropriately reduces the frequency and specifications of the central processing unit (CPU), and integrates memory, counter, and universal serial bus (USB). ), analog to digital converter, universal asynchronous receiver/transmitter (UART), programmable logic controller (PLC), direct memory access (direct memory access, DMA) and other units to form a chip-level computer.
  • the micro-control unit chip may also include fewer or more units.
  • the power management chip may include a charging circuit, a voltage drop adjustment circuit, a protection circuit, a power measurement circuit, and the like.
  • the charging circuit can receive an external charging input.
  • the voltage drop regulating circuit can transform the electric signal input from the charging circuit and output it to the battery 40 to complete the charging of the battery 40. It can also transform the electric signal input from the battery 40 and output it to the main control module 20 and other functions.
  • the module is used to supply power to the components in the main control module 20 and the functional modules of the headphone body 100.
  • the protection circuit can be used to prevent the battery 40 from being overcharged, over-discharged, short-circuited, or over-current.
  • the power management unit can also be used to monitor the battery capacity of the battery 40, the number of battery cycles, and the battery health status (leakage, impedance) and other parameters.
  • the power management chip may also include fewer or more circuits.
  • the multiple functional modules of the earphone body 100 further include a positive charging terminal 401 and a negative charging terminal 402.
  • the positive charging terminal 401 is located in the earplug part 1002.
  • the main housing 101 is located at the earplug part 1002 and faces the bottom section 1005 of the ear handle 1001 with a through hole (not shown in the figure), and the positive charging terminal 401 is exposed at the ear handle through the through hole The outside of 1001.
  • the rigid-flex circuit board 1 of the main control module 20 further includes a third flexible board portion 14 connected to the rigid board portion 11, and the third flexible board portion 14 is located in the earplug portion 1002.
  • the positive charging terminal 401 is connected to the third soft board portion 14, and is connected to the power management chip in the stack assembly 2 via the third soft board portion 14 and the hard board portion 11.
  • the negative charging terminal 402 is located at the bottom section 1005 of the ear handle 1001.
  • the bottom shell 102 is made of conductive material, and the negative charging terminal 402 contacts the bottom shell 102.
  • the bottom shell 102 may also be made of non-conductive material and provided with a connecting hole, and the negative charging terminal 402 is fixed to the bottom shell 102 and exposed to the outside of the ear stem body through the connecting hole.
  • the negative charging terminal 402 is connected to the second soft board portion 13, and is connected to the power management chip in the stack assembly 2 via the second soft board portion 13 and the hard board portion 11.
  • the positive charging terminal 401 and the negative charging terminal 402 are respectively connected to two charging terminals in the battery box 200, and the battery box 200 charges the earphone body 100.
  • the positive charging terminal 401 may also be located at the bottom section 1005 of the ear handle 1001. At this time, the positive charging terminal 401 is connected to the second soft board portion 13, and the second flexible board portion 13 and the hard board portion 11 are electrically connected to each other. Connected to the power management chip in the stack assembly 2.
  • the positive charging terminal 401 can be a pogo pin, an elastic sheet, a conductive block, a conductive patch, a conductive sheet, a pin, a plug, a contact pad, a jack or a socket, etc.
  • the embodiment of the present application relates to the positive charging terminal 401
  • the specific type of is not strictly limited.
  • the negative charging terminal 402 may be a pogo pin, an elastic sheet, a conductive block, a conductive patch, a conductive sheet, a pin, a plug, a contact pad, a jack or a socket, etc.
  • the specific embodiment of the negative charging terminal 402 in this application The type is not strictly limited.
  • the type of the negative charging terminal 402 may be the same as or similar to the type of the positive charging terminal 401.
  • the types of the positive charging terminal 401 and the negative charging terminal 402 are adapted to the type of the charging terminal of the charging box.
  • the multiple functional modules of the earphone body 100 further include an optical sensor module 50.
  • the optical sensor module 50 (optical sensor) can be used as a proximity detection module for detecting whether the earphone body 100 is installed on the user's ear.
  • the optical sensor module 50 is located in the earplug part 1002, for example, it may be located at a position of the earplug part 1002 away from the ear handle part 1001 and close to the side shell 103.
  • the optical sensor module 50 can emit a detection signal and receive a feedback signal through the detection hole 1032 (see FIG. 2) of the side housing 103 to achieve detection.
  • the optical sensor module 50 is connected to the first soft board portion 12, and is electrically connected to a plurality of chips in the stack assembly 2 via the first soft board portion 12 and the hard board portion 11.
  • the multiple functional modules of the earphone body 100 further include a bone vibration sensor module 60.
  • the bone vibration sensor module 60 is used to realize functions such as voiceprint recognition, speech interpretation & recognition interface (SIRI), and double-click to start the headset body 100.
  • the bone vibration sensing module 60 is located at the earplug part 1002, for example, it may be located at a position where the earplug part 1002 faces the bottom section 1005 of the ear stem part 1001.
  • the main housing 101 may be provided with a corresponding interactive through hole 1015 through which the bone vibration sensing module 60 interacts with the user.
  • the bone vibration sensor module 60 is connected to the first soft board part 12, and is connected to the chip in the stack assembly 2 via the first soft board part 12 and the hard board part 11.
  • the multiple functional modules of the earphone body 100 further include an antenna module 70.
  • the antenna module 70 includes an antenna support 701, an antenna 702, and a feeder 703.
  • the antenna 702 is fixed to the antenna support 701, and the antenna 702 and the antenna support 701 are located at the top section 1004 and the connecting section 1003 of the ear stem 1001.
  • the power feeding member 703 is located at the connecting section 1003 of the ear handle 1001, and the power feeding member 703 is fixed to the second soft board portion 13 for feeding power to the antenna 702.
  • the power feeding member 703 may be a shrapnel, and the power feeding member 703 is welded to the second soft board portion 13.
  • the multiple chips of the stack assembly 2 further include a radio frequency chip, and the radio frequency chip is used for modulating and demodulating radio frequency signals.
  • the radio frequency signal works in the Bluetooth frequency band.
  • the radio frequency chip is electrically connected to the micro control unit chip.
  • the antenna 702 is electrically connected to the radio frequency chip through the power feeder 703, the second soft board portion 13 and the hard board portion 11.
  • the radio frequency chip can also be integrated into the micro control unit chip.
  • the antenna module 70 may be provided on the ear plug 1002 or the connecting section 1003 or the bottom section 1005 of the ear handle 1001.
  • the multiple functional modules of the earphone body 100 further include a first microphone module 80, and the first microphone module 80 is used to convert sound signals into electrical signals.
  • the first microphone module 80 is located at the connecting section 1003 of the ear handle 1001. The sound from the outside of the earphone body 100 can enter the inside of the earphone body 100 through the first sound inlet 1013 and then be received by the first microphone module 80.
  • the first microphone module 80 is connected to the second soft board portion 13, and is connected to the chips in the stack assembly 2 via the second soft board portion 13 and the hard board portion 11.
  • the multiple functional modules of the earphone body 100 further include a second microphone module 90, and the second microphone module 90 is used to convert sound signals into electrical signals.
  • the second microphone module 90 is located at the bottom section 1005 of the ear handle 1001. The sound from the outside of the earphone body 100 can enter the inside of the earphone body 100 through the second sound inlet 1021, and then is received by the second microphone module 90.
  • the second microphone module 90 is connected to the second soft board portion 13, and is connected to the chips in the stack assembly 2 via the second soft board portion 13 and the hard board portion 11.
  • the first microphone module 80 may be used as the main microphone of the earphone body 100
  • the second microphone module 90 may be used as the secondary microphone of the earphone body 100.
  • the above description is an exemplary description of the main functional modules, housing structure, and chips in the earphone body 100.
  • the earphone body 100 may also include more or fewer functional modules.
  • the group can have other housing structures and can include more or fewer chips.
  • the number of the flexible board portion of the rigid-flex circuit board 1 of the main control module 20 is multiple, such as the first flexible board portion 12, the second flexible board portion 13, and the third flexible board portion mentioned above.
  • the soft board part 14 and a plurality of soft board parts are all connected to the hard board part 11.
  • the number setting and position setting of the soft board parts can be set according to the positions of the multiple functional modules of the earphone body 100, which are not strictly limited in this application.
  • FIG. 5 is a schematic structural diagram of the main control module 20 shown in FIG. 3 in some embodiments when it is expanded.
  • the connection relationship between the multiple soft board portions of the flexible and hard combined circuit board 1 and the multiple functional modules of the earphone body 100 corresponds to the foregoing description.
  • the first soft board portion 12 is sequentially arranged with a first connection area 121, a second connection area 122, and a third connection area 123 in a direction away from the hard board portion 11.
  • the first connection area 121 is used to connect bone vibration
  • the second connection area 122 is used for connecting the earpiece module 30, and the third connection area 123 is used for connecting the optical sensor module 50.
  • the second flexible board portion 13 is sequentially arranged with a fourth connection area 131, a fifth connection area 132, a sixth connection area 133, and a seventh connection area 134 in a direction away from the hard board portion 11.
  • the fourth connection area 131 is used for The antenna module 70 is connected
  • the fifth connection area 132 is used to connect the first microphone module 80
  • the sixth connection area 133 is used to connect the second microphone module 90
  • the seventh connection area 134 is used to connect the negative charging terminal 402.
  • the third flexible board portion 14 is provided with an eighth connection area 141 for connecting the positive charging terminal 401.
  • FIG. 6 is a schematic structural diagram of the main control module 20 shown in FIG. 3 in other embodiments.
  • the difference between this embodiment and the previous embodiments is that the connection relationship between the flexible board portion of the flexible and hard circuit board 1 and the multiple functional modules of the earphone body 100 is changed.
  • the first soft board portion 12 is provided with a first fixing area 124 for connecting the earpiece module 30.
  • the second soft board portion 13 is sequentially arranged with a second fixed area 135, a third fixed area 136, a fourth fixed area 137, and a fifth fixed area 138 in a direction away from the hard board portion 11.
  • a sixth fixed area 139 and a seventh fixed area 1310 are arranged between the second fixed area 135 in a branching manner, the second fixed area 135 is used for connecting the antenna module 70, and the third fixed area 136 is used for connecting the first microphone module 80.
  • the fourth fixed area 137 is used to connect to the negative charging terminal 402
  • the fifth fixed area 138 is used to connect to the second microphone module 90
  • the sixth fixed area 139 is used to connect to the bone vibration sensor module 60
  • the seventh fixed area 1310 is used to connect the positive charging terminal 401.
  • FIG. 7 is a schematic diagram of the internal structure of the soft-hard combined circuit board 1 of the main control module 20 shown in FIG. 3.
  • the rigid-flex circuit board 1 includes at least one flexible dielectric layer 1a and at least two first conductive layers 1b that are stacked, and a flexible dielectric layer is provided between two adjacent first conductive layers 1b. 1a.
  • At least one flexible medium layer 1 a and at least two first conductive layers 1 b form the first flexible board portion 12, the middle layer of the rigid board portion 11 and the second flexible board portion 13.
  • the first flexible board portion 12, the intermediate layer of the rigid board portion 11, and the second flexible board portion 13 are integrated and continuous.
  • the flexible medium layer 1a may be made of polyimide (PI) material, so that the bending resistance of the first flexible board portion 12 and the second flexible board portion 13 is better.
  • at least one flexible medium layer 1a and at least two first conductive layers 1b also form other soft board portions, such as the third flexible board portion 14.
  • the rigid-flex circuit board 1 further includes at least two hard dielectric layers 1c and at least two second conductive layers 1d, which are stacked, and a part of the hard dielectric layers in the at least two hard dielectric layers 1c 1c is located on one side of the intermediate layer of the hard plate portion 11, another part of the hard dielectric layer 1c is located on the other side of the intermediate layer of the hard plate portion 11, and part of the second conductive layer 1d of the at least two second conductive layers 1d is located One side of the middle layer of the rigid board portion 11 and the other part of the second conductive layer 1d are located on the other side of the middle layer of the rigid board portion 11, and two adjacent second conductive layers located on the same side of the middle layer of the rigid board portion 11 A hard dielectric layer 1c is arranged between the layers 1d, and a hard dielectric layer 1c is arranged between the second conductive layer 1d adjacent to the middle layer of the hard board portion 11 and the middle layer of the hard board portion 11.
  • At least two hard dielectric layers 1c and at least two second conductive layers 1d form the two-sided layer structure of the hard plate portion 11.
  • the rigid medium layer 1c may be made of polypropylene (PP) material, so that the rigid plate portion 11 has sufficient structural strength.
  • the number of flexible dielectric layers 1a of the rigid-flex circuit board 1 shown in FIG. 7 is one layer
  • the number of first conductive layers 1b is two layers
  • the number of hard dielectric layers 1c is six
  • the number of second conductive layers 1d The number is six layers
  • the rigid-flex circuit board 1 has an eight-layer board structure.
  • the numbers of the flexible dielectric layer 1a, the first conductive layer 1b, the hard dielectric layer 1c, and the second conductive layer 1d can also be set to different values according to requirements.
  • FIG. 8 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the first embodiment
  • FIG. 9 is a top view of a partial structure of the main control module 20 shown in FIG. 8.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacked assembly 2 includes a first substrate 211, a first support 22 a, and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first substrate 211 is a rigid circuit board. Exemplarily, the projection of the first substrate 211 on the hard board portion 11 falls within the range of the hard board portion 11.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively. That is, the first supporting member 22a is supported between the first substrate 211 and the hard plate portion 11.
  • One chip 231 of the plurality of chips 231 is fixed to the first substrate 211, one chip 231 of the plurality of chips 231 is fixed to the rigid board portion 11, and the chip 231 fixed to the first substrate 211 is electrically connected to the rigid board through the first support 22a. ⁇ 11 ⁇ Board section 11.
  • two or more chips 231 of the plurality of chips 231 are fixed to the first substrate 211, and/or two or more chips 231 of the plurality of chips 231 are fixed to the hard board portion 11.
  • at least one chip 231 of the plurality of chips 231 is fixed to the first substrate 211 and at least one chip 231 is fixed to the hard board portion 11.
  • the arrangement of the multiple chips 231 on the first substrate 211 and the hard board portion 11 is various.
  • the power management chip and the micro control unit chip can be fixed on the hard board portion 11, and the audio chip can be fixed on the first substrate. 211; It is also possible to fix the power management chip on the hard board part 11, and fix the micro-control unit chip and the audio chip on the first substrate 211.
  • FIG. 9 mainly illustrates the structure of the rigid board portion 11 of the rigid-flex circuit board 1 and the structure of a single-layer device directly fixed on the rigid board portion 11.
  • the chip 231 fixed on the first substrate 211 can be electrically connected to the rigid board portion 11 via the first support 22a, there is no need to provide a signal transmission between the first substrate 211 and the rigid board portion 11.
  • the signal transmission path between the chip 231 of the first substrate 211 and the hard board portion 11 is implemented by the first support 22a, and the signal transmission path is short, which makes the signal transmission quality better. For example, audio signals are being transmitted. There is less risk of distortion at the time.
  • the main control module 20 of this embodiment no longer has a flexible circuit board connected between the first substrate 211 and the rigid board portion 11, which can also prevent the flexible circuit board from being bent and having a large bending angle. In the bending area, it causes a fracture and an open circuit, which leads to the problem of product failure or low yield.
  • the outline of the rigid board portion 11 of the flexible-hard combined circuit board 1 tends to be round or round, so as to meet the shape constraints of the human ear and also improve the utilization of the internal space of the earphone body 100.
  • the shape of the outer contour of the first substrate 211 is the same as or similar to the shape of the outer contour of the rigid board portion 11.
  • the chip 231 may be fixed to the circuit board (such as the rigid board portion 11, the first substrate 211, and the later mentioned Substrate structure).
  • the chip 231 located on the first substrate 211 is fixed to the first substrate 211 by bonding.
  • the chip 231 located on the hard board portion 11 is fixed to the circuit board by means of bonding and bonding at the same time.
  • the stack assembly 2 of the main control module 20 further includes a plurality of chip matching devices 232. At least one chip matching device 232 among the plurality of chip matching devices 232 is fixed to the first substrate 211, and at least one chip matching device 232 is fixed to the hard board portion 11. The arrangement positions of the multiple chip matching devices 232 can be arranged with their corresponding chips 231.
  • the first support 22 a includes a plurality of first elevated pillars 221, and the plurality of first elevated pillars 221 are located between the rigid board portion 11 and the first base plate 211 and fixed to the rigid board portion 11.
  • the plurality of first elevated pillars 221 can be arranged at any position of the rigid board portion 11 according to actual needs, for example, in the peripheral area of the rigid board portion 11, so that the middle area of the rigid board portion 11 has a complete and sufficient device row. Layout area, thus arranging more devices.
  • the stack assembly 2 of the main control module 20 further includes a first packaging layer 241, the first packaging layer 241 is located between the rigid board portion 11 and the first substrate 211, the first packaging layer 241 connects the plurality of first elevated pillars 221 and At least one chip 231 is packaged in the hard board portion 11. At this time, the end surface of one end of the plurality of first elevated pillars 221 away from the rigid board portion 11 is exposed to the first packaging layer 241, and the first substrate 211 can be connected to the end surface of the first elevated pillar 221.
  • the first encapsulation layer 241 also encapsulates at least one chip matching device 232 on the hard board portion 11. The first encapsulation layer 241 can protect the encapsulated devices, so that the main control module 20 has a higher reliability and a longer service life.
  • the first packaging layer 241 directly encapsulates a plurality of devices (such as the chip 231 and the chip matching device 232) on the hard board portion 11, so that the plurality of devices can directly pass through the hard board portion 11 and the first soft board portion. 12 or the second soft board portion 13 is connected to the functional module of the headphone body 100.
  • the device needs to be packaged on a carrier substrate first, and the carrier substrate can be soldered to the circuit board before it can be connected to the external module.
  • the connection mode of this embodiment is more direct and the structure is simpler.
  • the types of elevated columns include, but are not limited to, the filled-molded first column 2201 and/ Or a pre-formed second cylinder 2202.
  • the elevated column includes the first column 2201; in other embodiments, the elevated column includes the second column 2202; in still other embodiments, the elevated column includes the first column 2201 and the second column 2201.
  • the two pillars 2202, the first pillar 2201 and the second pillar 2202 may be stacked in a direction perpendicular to the rigid board portion 11.
  • the first pillar 2201 passes through an encapsulation layer (for example, the first encapsulation layer 241 and the substrate structure mentioned later) formed on the circuit board (for example, the rigid board portion 11, the first substrate 211, and the substrate structure mentioned later).
  • the via hole is formed in the package layer structure), and then a conductive material (such as aluminum, copper, silver and other metal materials) is filled in the via hole to form a solid first pillar 2201, or a layer is plated on the wall of the via hole Conductive materials (such as metal materials such as aluminum, copper, silver, etc.) to form the hollow first pillar 2201.
  • the first pillar 2201 can be fixed to the circuit board during molding, so there is no need to provide a fixing solder or glue layer between the first pillar 2201 and the circuit board.
  • the signal is between the first pillar 2201 and the circuit board.
  • the impedance during transmission is smaller, and the signal transmission effect is better.
  • a plurality of elevated pillars when fixed to the circuit board, they can be arranged at intervals to enable the subsequent packaging process to proceed smoothly, and a packaging layer with uniform thickness can be formed at various positions on the circuit board.
  • first pillar 2201 can not only play a supporting role, but also can realize electrical conduction.
  • the material of the first pillar 2201 can be replaced with a harder, non-conductive material.
  • the material of the first pillar 2201 has a greater hardness than the encapsulation layer. The hardness of the material.
  • the second column 2202 is a pre-fabricated column structure.
  • the molding process of the encapsulation layer is performed after the second pillar 2202 and the circuit board (for example, the rigid board portion 11, the first substrate 211, and the substrate structure mentioned later) form an integrated structure.
  • the second pillar 2202 is fixed to the circuit board through an assembly process such as soldering or gluing, and there is a solder or glue layer between the second pillar 2202 and the circuit board.
  • the second pillar 2202 may be made of conductive material to take into account both the supporting function and the conductive function.
  • the adhesive layer adopts conductive adhesive material.
  • the second column 2202 is integrally formed with the circuit board to which it is connected, for example, it can be completed together in the circuit board manufacturing process.
  • the second column 2202 is an elevated board adopting a circuit board structure, and the second column 2202 can achieve a conductive function through the internal circuit structure, thereby taking into account both the supporting function and the conductive function. Since there is no need to dispose a solder or glue layer between the second column 2202 and the circuit board, the impedance when the signal is transmitted between the second column 2202 and the circuit board can be reduced, and a better signal transmission effect can be obtained. The number of welding is reduced, and the stability of the product and the production yield are further improved.
  • the types of the multiple first elevated columns 221 may be the same type of elevated columns, or a combination of two or more types of elevated columns.
  • At least one of the plurality of first elevated columns 221 includes a first column 2201.
  • a first via hole 2411 is formed in the first encapsulation layer 241, and a conductive material is filled in the first via hole 2411 to form a first pillar 2201.
  • One end of the first pillar 2201 is connected to the rigid board portion 11, and the other end is exposed to the first packaging layer 241.
  • At least one of the plurality of first elevated columns 221 includes a second column 2202. One end of the second pillar 2202 is connected to the hard board portion 11, and the other end is exposed to the first packaging layer 241.
  • At least one of the plurality of first elevated columns 221 includes a first column 2201 and a second column 2202 that are stacked, and the second column 2202 is located between the rigid plate portion 11 and the first column 2201.
  • the elevated column including the first column 2201 and the second column 2202 can first fix the second column 2202 to the rigid board portion 11, and then form the first encapsulation layer 241 and the second via 2412, and the second via 2412 Connect the second pillar 2202, and then form a first pillar 2201 in the second via 2412.
  • the first pillar 2201 is connected to the second pillar 2202.
  • the end of the first pillar 2201 away from the rigid board portion 11 is opposite to the first package
  • the layer 241 is exposed.
  • the rigid board portion 11 includes a first surface 111 facing the first substrate 211.
  • the first surface 111 includes a first encapsulation area 1111 and a first non-encapsulation area 1112.
  • the encapsulation layer 241 is located in the first encapsulation area 1111, and the first non-encapsulation area 1112 is located in the periphery of the first encapsulation area 1111. In other words, there is a certain distance between the first packaging area 1111 and the edge of the hard board portion 11.
  • the first non-encapsulated area 1112 can provide a support space for the mold during the molding process of the first encapsulation layer 241, so as to prevent the mold from resisting the first flexible board portion 12 or the second flexible board portion 13 and causing softness.
  • the hard-bonded circuit board 1 is damaged, thereby ensuring the production yield of the main control module 20.
  • FIG. 10 is a first structural diagram of the main control module 20 shown in FIG. 8 during the production process
  • FIG. 11 is the main control module 20 shown in FIG. 8 during the production process
  • Fig. 12 is the third structural schematic diagram of the main control module 20 shown in Fig. 8 during the manufacturing process.
  • 10 corresponds to the device fixing process
  • FIG. 11 corresponds to the molding process (molding) of the first encapsulation layer 241
  • FIG. 12 corresponds to the demolding process of the first encapsulation layer 241.
  • a plurality of devices chips 231, chip matching devices 232
  • a plurality of second pillars 2202 parts of the second pillars 2202 alone form a first elevated pillar, and part of the second pillars 2202 form a first elevated pillar.
  • a part of an elevated post is fixed to the first packaging area 1111 of the first surface 111 of the rigid board portion 11.
  • the fixing methods of multiple devices include, but are not limited to, patching, welding, bonding, and bonding.
  • the upper mold 3001 of the injection device abuts the first non-encapsulated area 1112 of the rigid board portion 11, and a packaging space 3002 is formed between the upper mold 3001 and the rigid board portion 11.
  • the second column 2202 of the first elevated column, the chip 231, and the chip matching device 232 are located in the packaging space 3002.
  • the upper mold 3001 forms a glue injection port 3003 on the side facing the hard board portion 11, and the glue injection port 3003 is connected to the packaging space 3002.
  • the packaging material can be injected into the packaging space 3002 from the glue injection port 3003 to form a first packaging layer in the packaging space 3002. 241 ( Figure 12).
  • the lower mold 3004 of the injection device is located on the side of the hard plate part 11 away from the upper mold 3001 and resists the hard plate part 11.
  • the projection of the lower mold 3004 of the injection device on the hard plate part 11 covers the projection of the upper mold 3001 on the hard plate part 11 to fully support the upper mold 3001 through the hard plate part 11.
  • the upper mold 3001 and the lower mold 3004 are not in contact with the first flexible board portion 12 and the second flexible board portion 13 to avoid damage to the first flexible board portion 12 and the second flexible board portion 13.
  • the upper mold 3001 extends a plurality of thimble pins 3005, part of the thimble 3005 supports the first non-encapsulated area 1112 of the rigid board portion 11, and part of the thimble 3005 supports the first encapsulation layer 241 to separate the upper mold 3001 from the first encapsulation layer 241.
  • the thimble 3005 holding the first encapsulation layer 241 can be partially supported on the end surface of the second pillar 2202, and the second pillar 2202 provides sufficient support for the thimble 3005 to prevent the thimble 3005 from damaging the first encapsulation layer 241 , So that the production yield of the main control module 20 is higher.
  • the injection device can also be provided with an auxiliary top block 3006, which is used to hold the first flexible board portion 12 and the second flexible board portion 13 to assist the film release.
  • the auxiliary top block 3006 has a large contact area with the first flexible board portion 12 and the second flexible board portion 13 to avoid damage to the first flexible board portion 12 or the second flexible board portion 13 due to excessive local stress.
  • the stack assembly 2 of the main control module 20 further includes at least one first device 233, and the at least one first device 233 is fixed to the first non-packaged area 1112.
  • the first encapsulation layer 241 selectively encapsulates the devices located in the hard board portion 11, and does not encapsulate the first device 233.
  • the first device 233 is a device that is not suitable for plastic packaging, including but not limited to a surface acoustic wave (SAW) filter with a cavity, a crystal oscillator with a cavity, a pressure-sensitive device, and the like.
  • the surface acoustic wave filter is mainly used to filter and amplify the radio frequency signal.
  • the crystal oscillator is mainly used to filter the main input and main output of the power management chip.
  • Devices that are sensitive to pressure include, but are not limited to, gyroscopes, triaxial accelerometers, etc.
  • the gyroscopes are used to detect angular velocity
  • the triaxial accelerometers are used to sense acceleration.
  • the first non-encapsulated area 1112 of the rigid board portion 11 not only provides a holding space for the mold during the molding process of the first encapsulation layer 241, but also is used to arrange the first devices 233 that are not suitable for packaging. Therefore, the main The control module 20 reuses the space of the first non-encapsulated area 1112, which improves the space utilization rate.
  • the first device 233 may not be provided on the hard board portion 11, and the first packaging layer 241 encapsulates all the devices on the side of the hard board portion 11 facing the first substrate 211.
  • the first base plate 211 is welded with a plurality of first elevated pillars 221.
  • the stack assembly 2 of the main control module 20 further includes a second packaging layer 242, which is located on the side of the first substrate 211 away from the hard board portion 11, and the second packaging layer 242 encapsulates at least one chip 231 on the first substrate 211.
  • the second encapsulation layer 242 can also encapsulate at least one chip matching device 232 on the first substrate 211.
  • the second packaging layer 242 can protect the packaged devices, so that the main control module 20 has a higher reliability and a longer service life.
  • the stack assembly 2 of the main control module 20 further includes at least one second device 234, and the at least one second device 234 is fixed on the side of the first substrate 211 away from the rigid board portion 11. , And located outside the second encapsulation layer 242.
  • the second device 234 is a device that is not suitable for plastic packaging, including but not limited to a surface acoustic wave (SAW) filter with a cavity, a crystal oscillator with a cavity, a pressure-sensitive device, and the like.
  • SAW surface acoustic wave
  • the devices in the main control module 20 that are not suitable for plastic packaging can be flexibly arranged on the rigid board portion 11 and/or the first substrate 211 according to the function selection and the arrangement position of the chip 231, which improves the main control module.
  • the projection of the first encapsulation layer 241 on the rigid board portion 11 covers the projection of the second encapsulation layer 242 on the rigid board portion 11, and the first encapsulation layer 241 and the second encapsulation layer 242 are formed Roughly a stepped shape with unequal up and down steps.
  • the first encapsulation layer 241 and the second encapsulation layer 242 may also have other regular or irregular shapes.
  • FIG. 13 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the second embodiment. The following mainly describes the difference between the second embodiment and the first embodiment, and most of the same content as the first embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacked assembly 2 includes a first substrate 211, a first support 22 a, and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • the first support 22 a includes a plurality of first elevated columns 221 and a plurality of second elevated columns 222.
  • the plurality of first elevated pillars 221 are located between the rigid board portion 11 and the first base plate 211 and fixed to the rigid board portion 11.
  • the plurality of second elevated pillars 222 are fixed to the side of the first base plate 211 facing the rigid board portion 11, and the plurality of second elevated pillars 222 are welded to the plurality of first elevated pillars 221 in a one-to-one correspondence.
  • the structure of the second elevated column 222 please refer to the description of the elevated column structure in the foregoing.
  • At least one chip 231 of the plurality of chips 231 is fixed to the hard board portion 11, and at least one chip 231 is fixed to the first substrate 211.
  • the stack assembly 2 of the main control module 20 further includes a first encapsulation layer 241, a second encapsulation layer 242 and a third encapsulation layer 243.
  • the first packaging layer 241 is located between the rigid board portion 11 and the first substrate 211, and the first packaging layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11.
  • the first packaging layer 241 may also be packaged with a plurality of chip matching devices 232.
  • the second packaging layer 242 is located on the side of the first substrate 211 facing the hard board portion 11, and the second packaging layer 242 encapsulates at least one chip 231 on the first substrate 211.
  • the second packaging layer 242 may also be packaged with a plurality of chip matching devices 232.
  • the third packaging layer 243 is located on the side of the first substrate 211 away from the hard board portion 11, and the third packaging layer 243 encapsulates the plurality of second elevated pillars 222 and at least one chip 231 on the first substrate 211.
  • the third packaging layer 243 may also be packaged with a plurality of chip matching devices 232.
  • the third packaging layer 243 can protect the packaged devices, so that the main control module 20 has a higher reliability and a longer service life.
  • the first supporting member 22a since the first supporting member 22a includes a first elevated column 221 and a second elevated column 222 which are stacked, the first supporting member 22a has a sufficient height, so the first base plate 211 and the rigid plate portion 11 The distance between the two layers is relatively large, and two layers of devices can be arranged between the first substrate 211 and the hard board portion 11, so that the main control module 20 integrates three layers of devices in the direction perpendicular to the hard board portion 11, and the main control module 20 And the device arrangement density of the earphone body 100 is greater, and the integration degree is higher. In addition, the arrangement of the multiple chips 231 of the main control module 20 in the three-layer device is more flexible and diverse.
  • the first packaging layer 241 may be encapsulated with power management chips, and the second packaging layer 242 may be encapsulated.
  • the third encapsulation layer 243 may be encapsulated with an audio chip.
  • the first packaging layer 241 is located in the first packaging area 1111 of the rigid board portion 11, and the first non-encapsulated area 1112 of the rigid board portion 11 may be fixed with at least one first device 233.
  • a device 233 is a device that is not suitable for plastic packaging.
  • the second encapsulation layer 242 can fully encapsulate the devices on the side of the first substrate 211 facing the hard board portion 11, and the third encapsulation layer 243 can encapsulate the first substrate 211 away from the hard board.
  • the device on the side of section 11 is partially packaged.
  • the packaging layer performs full-scale packaging of the devices on the substrate, that is, the packaging layer completely covers one side of the substrate.
  • the encapsulation layer partially encapsulates the devices on the substrate, that is, the encapsulation layer partially covers one side of the substrate.
  • At least one second device 234 may be fixed on the side of the first substrate 211 away from the hard board.
  • the second device 234 is a device that is not suitable for plastic packaging, and the at least one second device 234 is located outside the third encapsulation layer 243. In some other embodiments, the second device 234 may not be provided on the first substrate 211, and the third packaging layer 243 performs full-scale packaging of the devices on the side of the first substrate 211 away from the hard board portion 11.
  • FIG. 14 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the third embodiment.
  • the following mainly describes the difference between the third embodiment and the foregoing embodiment, and most of the content that is the same as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacked assembly 2 includes a first substrate 211, a second substrate 212, a first support 22a, a plurality of third elevated pillars 223, a first encapsulation layer 241, a second encapsulation layer 242, a third encapsulation layer 243, and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • At least one chip 231 of the plurality of chips 231 is fixed to the hard board portion 11, at least one chip 231 is fixed to the first substrate 211, and at least one chip 231 is fixed to the second substrate 212.
  • the first support 22a includes a plurality of first elevated columns 221.
  • the plurality of first elevated columns 221 are located between the rigid board portion 11 and the first base plate 211 and are fixed to the rigid board portion 11.
  • the first packaging layer 241 is located between the rigid board portion 11 and the first substrate 211, and the first packaging layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11.
  • the first packaging layer 241 may also be packaged with at least one chip matching device 232.
  • At least one first device 233 may be fixed in the first non-encapsulated area 1112 of the hard board portion 11, and the first device 233 is a device that is not suitable for plastic packaging.
  • the first substrate 211 is welded with a plurality of first elevated pillars 221, and the chip 231 fixed to the first substrate 211 is located on the side of the first substrate 211 away from the rigid board portion 11.
  • the second substrate 212 is located on the side of the first substrate 211 away from the hard board portion 11, the second substrate 212 and the first substrate 211 are stacked and spaced apart from each other, and a plurality of third elevated posts 223 are located on the second substrate 212 and the first substrate. Between the 211 and the second substrate 212 and the first substrate 211 respectively.
  • the third elevated column 223 please refer to the related description of the aforementioned elevated column.
  • the second packaging layer 242 is located between the second substrate 212 and the first substrate 211, and the plurality of third elevated pillars 223 and the chips 231 fixed to the first substrate 211 are packaged in the second packaging layer 242.
  • the second encapsulation layer 242 can also encapsulate the at least one chip matching device 232 on the first substrate 211.
  • At least one chip 231 of the plurality of chips 231 is packaged in the second packaging layer 242 and fixed to the second substrate 212.
  • the second encapsulation layer 242 can also encapsulate the at least one chip matching device 232 on the second substrate 212.
  • the third packaging layer 243 is located on a side of the second substrate 212 away from the first substrate 211, and at least one chip 231 of the plurality of chips 231 is packaged in the third packaging layer 243 and fixed to the second substrate 212. That is, the chip 231 fixed to the second substrate 212 is partially located on the side of the second substrate 212 facing the first substrate 211 and partially located on the side of the second substrate 212 away from the first substrate 211.
  • the chip 231 fixed on the second substrate 212 is electrically connected to the rigid board portion 11 via the plurality of third elevated pillars 223, the first substrate 211 and the plurality of first elevated pillars 221.
  • the third encapsulation layer 243 can also encapsulate the at least one chip matching device 232 on the second substrate 212.
  • the main control module 20 is located on the side of the rigid board portion 11 facing the first substrate 211, the side of the first substrate 211 away from the rigid board portion 11, and the side of the second substrate 212 facing the first substrate 211.
  • devices are arranged, so that four layers of devices are stacked in a direction perpendicular to the hard board portion 11, which improves the arrangement density and integration of the devices.
  • the second encapsulation layer 242 performs full-scale packaging on the devices on the first substrate 211, and performs full-scale packaging on the devices on the side of the second substrate 212 facing the first substrate 211.
  • the third encapsulation layer 243 partially encapsulates the devices located on the side of the second substrate 212 away from the first substrate 211.
  • At least one second device 234 may be fixed on the side of the second substrate 212 away from the first substrate 211.
  • the second device 234 is a device that is not suitable for plastic packaging, and the at least one second device 234 is located outside the third encapsulation layer 243. It can be understood that, in some other embodiments, the second device 234 is no longer provided on the second substrate 212, and the third packaging layer 243 performs full-scale packaging of the devices located on the side of the second substrate 212 away from the first substrate 211.
  • FIG. 15 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the fourth embodiment.
  • the following mainly describes the difference between the fourth embodiment and the foregoing embodiment, and most of the content that is the same as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacked assembly 2 includes a first substrate 211, a first support 22 a, and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • the first support 22a includes a plurality of first elevated columns 221.
  • the plurality of first elevated columns 221 are located between the rigid board portion 11 and the first base plate 211 and are fixed to the rigid board portion 11.
  • the stack assembly 2 of the main control module 20 further includes a first encapsulation layer 241 and a second encapsulation layer 242.
  • the first encapsulation layer 241 is located between the rigid board portion 11 and the first substrate 211.
  • the first encapsulation layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11, and the first encapsulation layer 241 contacts The first substrate 211.
  • the first encapsulation layer 241 encapsulates the devices located between the hard board part 11 and the first substrate 211.
  • the first substrate 211 can be fixed (for example, welding or bonding) to the plurality of first elevated posts 221, and then the packaging material can be filled between the first substrate 211 and the rigid board portion 11.
  • the first encapsulation layer 241 can also encapsulate at least one chip matching device 232 on the hard board portion 11.
  • At least one first device 233 may be disposed in the first non-encapsulated area 1112 of the hard board portion 11, and the first device 233 is a device that is not suitable for plastic packaging.
  • the second encapsulation layer 242 is fixed on the side of the first substrate 211 away from the hard board portion 11.
  • the chip 231 fixed on the first substrate 211 is partially encapsulated in the first encapsulation layer 241 and partially encapsulated in the second encapsulation layer 242.
  • the chip 231 fixed to the first substrate 211 is partially fixed to the side of the first substrate 211 facing the hard board portion 11 and partially fixed to the side of the first substrate 211 away from the hard board portion 11.
  • the first encapsulation layer 241 can also encapsulate the at least one chip matching device 232 on the first substrate 211.
  • the second encapsulation layer 242 can also encapsulate the at least one chip matching device 232 on the side of the first substrate 211 away from the hard board portion 11.
  • the main control module 20 is located on the side of the hard board portion 11 facing the first substrate 211, the side of the first substrate 211 facing the hard board portion 11, and the side of the first substrate 211 away from the hard board portion 11.
  • the devices are evenly arranged, so that three layers of devices are stacked in the direction perpendicular to the hard board portion 11, so the device arrangement density of the main control module 20 and the earphone body 100 is relatively high, and the integration level is relatively high.
  • the first encapsulation layer 241 performs full-scale encapsulation on the device fixed on the first substrate 211 toward the side of the hard board portion 11, and the second encapsulation layer 242 is fixed on the first substrate 211 away from the device.
  • the devices on one side of the hard board portion 11 are partially packaged.
  • At least one second device 234 may be further provided on the side of the first substrate 211 away from the hard board portion 11.
  • the second device 234 is a device that is not suitable for plastic packaging, and the at least one second device 234 is located outside the second encapsulation layer 242.
  • the second device 234 may not be provided on the first substrate 211, and the second packaging layer 242 performs full-scale packaging of the device fixed on the side of the first substrate 211 away from the hard board portion 11.
  • the stack assembly 2 is located on the same side of the rigid board portion 11.
  • the stack assembly 2 will be partially located on one side of the rigid board portion 11 and partially located on the side of the rigid board portion 11.
  • the other side of the solution will be described.
  • the part of the stack assembly 2 located on the side of the rigid board portion 11 facing the first substrate 211 is simply referred to as the upper stack portion, and the stack assembly 2 is located at the portion of the rigid board portion 11 away from the first substrate 211. Referred to as the lower stack part.
  • FIG. 16 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the fifth embodiment.
  • the following mainly describes the difference between the fifth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stack portion 2a includes a first substrate 211, a first support 22a, a first packaging layer 241, a second packaging layer 242, and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • the plurality of chips 231 at least two chips 231 are fixed to the hard board portion 11, and at least one chip 231 is fixed to the first substrate 211.
  • the first support 22a includes a plurality of first elevated columns 221.
  • the plurality of first elevated pillars 221 are located between the rigid board portion 11 and the first base plate 211 and fixed to the rigid board portion 11.
  • the first packaging layer 241 is located between the rigid board portion 11 and the first substrate 211, and the first packaging layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11.
  • the first encapsulation layer 241 also encapsulates at least one chip matching device 232.
  • the first base plate 211 is welded with a plurality of first elevated columns 221.
  • the second packaging layer 242 is located on the side of the first substrate 211 away from the hard board portion 11, and the second packaging layer 242 encapsulates at least one chip 231 on the first substrate 211.
  • the second encapsulation layer 242 also encapsulates at least one chip matching device 232.
  • the lower stack part 2b may include a fourth encapsulation layer 244.
  • the fourth encapsulation layer 244 is fixed on the side of the hard board portion 11 away from the first substrate 211, and at least one chip 231 of the chips 231 fixed on the hard board portion 11 is encapsulated in the fourth encapsulation layer 244.
  • the chip 231 fixed to the hard board portion 11 is partially located on the side of the hard board portion 11 facing the first substrate 211 and partially located on the side of the hard board portion 11 away from the first substrate 211.
  • the main control module 20 is located on the side of the rigid board portion 11 away from the first substrate 211, the side of the rigid board portion 11 facing the first substrate 211, and the side of the first substrate 211 away from the rigid board portion 11.
  • the devices are evenly arranged, so that three layers of devices are stacked in the direction perpendicular to the hard board portion 11, so the device arrangement density of the main control module 20 and the earphone body 100 is relatively high, and the integration level is relatively high.
  • At least one first device 233 may be fixed in the first non-encapsulated area 1112 of the hard board portion 11, and the first device 233 is a device that is not suitable for plastic packaging.
  • the second encapsulation layer 242 partially encapsulates the devices fixed on the side of the first substrate 211 away from the hard board portion 11.
  • At least one second device 234 may be further provided on the side of the first substrate 211 away from the hard board portion 11.
  • the second device 234 is a device that is not suitable for plastic packaging, and the at least one second device 234 is located outside the second encapsulation layer 242.
  • the second device 234 may not be provided on the first substrate 211, and the second packaging layer 242 performs full-scale packaging of the device fixed on the side of the first substrate 211 away from the hard board portion 11.
  • the hard board portion 11 further includes a second surface 112 away from the first substrate 211, and the second surface 112 is disposed opposite to the first surface 111.
  • the second surface 112 includes a second encapsulation area 1121 and a second non-encapsulation area 1122 located at the periphery of the second encapsulation area 1121.
  • the area and position of the second packaging area 1121 and the first packaging area 1111 may be the same or different.
  • the second packaging area 1121 covers the first packaging area 1111 and has an area larger than the first packaging area 1111 as an example. Description.
  • the fourth encapsulation layer 244 is fixed to the second encapsulation area 1121, and a gap is formed between the fourth encapsulation layer 244 and the edge of the hard board portion 11.
  • the fourth encapsulation layer 244 may encapsulate all the devices fixed on the side of the rigid board portion 11 away from the first substrate 211.
  • the device may be mounted on the first surface 111 of the rigid board portion 11 and the first packaging layer 241 may be formed first, and then the device may be mounted on the second surface 112 of the rigid board portion 11 and the second packaging layer 242 may be formed Then, the packaging structure including the first substrate 211 and the mounted devices is fixed above the first packaging layer 241, thereby forming the main control module 20.
  • FIG. 17 is a structural schematic diagram of the main control module 20 shown in FIG. 16 during the manufacturing process
  • FIG. 18 is a structural schematic diagram of the main control module 20 shown in FIG. 16 during the manufacturing process.
  • FIG. 19 is a third structural diagram of the main control module 20 shown in FIG. 16 during the manufacturing process.
  • FIG. 17 corresponds to the process of fixing the device on the second surface 112
  • FIG. 18 corresponds to the molding process of the fourth packaging layer 244
  • FIG. 19 corresponds to the demolding process of the fourth packaging layer 244.
  • the first non-packaged area 1112 is held by the support frame 400 to support the hard board portion 11 , So that multiple devices can be well fixed on the second surface 112.
  • the middle part of the support frame 400 is recessed to avoid the completed first packaging layer 241.
  • the support frame 400 does not contact the first soft board portion 12 and the second soft board portion 13 to avoid damage to the first soft board portion 12 and the second soft board portion 13.
  • the support frame 400 can also simultaneously hold the first packaging layer 241 to further support the rigid board portion 11 through the first packaging layer 241, and the rigid board portion 11 can obtain a more balanced support.
  • the fixing methods of multiple devices include, but are not limited to, patching, welding, bonding, and bonding.
  • the upper mold 3001 of the injection device abuts the second non-encapsulation area 1122 of the rigid board portion 11 and is in contact with the second surface 112 of the rigid board portion 11 A packaging space 3008 is formed.
  • the chip 231 and the chip matching device 232 fixed on the second surface 112 are located in the packaging space 3008.
  • the upper mold 3001 faces the second surface 112 of the hard board portion 11 to form a glue injection port 3009.
  • the glue injection port 3009 communicates with the packaging space 3008.
  • the packaging material can be injected into the packaging space 3008 from the glue injection port 3009 to form a fourth in the packaging space 3008.
  • the lower mold 3004 of the injection device is located on the side of the hard plate portion 11 away from the upper mold 3001 and resists the first non-encapsulated area 1112. Among them, the upper mold 3001 and the lower mold 3004 are not in contact with the first flexible board portion 12 and the second flexible board portion 13 to avoid damage to the first flexible board portion 12 and the second flexible board portion 13.
  • the upper mold 3001 protrudes a plurality of thimble pins 3005, part of the thimble 3005 supports the second non-encapsulated area 1122 of the rigid board portion 11, and part of the thimble 3005 supports the fourth encapsulation layer 244 to separate the upper mold 3001 from the fourth encapsulation layer 244.
  • the injection device may also be provided with an auxiliary top block 3006, which is used to hold the first flexible board portion 12 and the second flexible board portion 13 to assist the film release.
  • the auxiliary top block 3006 has a large contact area with the first flexible board portion 12 and the second flexible board portion 13 to avoid damage to the first flexible board portion 12 or the second flexible board portion 13 due to excessive local stress.
  • the structure of the upper stack portion 2a of the stack assembly 2 of the fifth embodiment shown in FIG. 16 is the same as or similar to the structure of the stack assembly 2 of the first embodiment shown in FIG. 8.
  • the upper stacking portion 2a of the fifth embodiment can be set to the same or similar structure as the stacking assembly 2 of the second to fourth embodiments to form a main structure different from the previous embodiment. ⁇ module 20.
  • the upper stacking part 2a of the stacking assembly 2 may be configured to have the same or similar structure as the stacking assembly 2 in the first to fourth embodiments, and the lower stacking part 2b of the stacking assembly 2 It is also arranged in the same or similar structure as the stack assembly 2 in the first embodiment to the fourth embodiment to form a main control module 20 with various structures different from the foregoing embodiment. An example is given below.
  • FIG. 20 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the sixth embodiment. The following mainly describes the difference between the sixth embodiment and the foregoing embodiment, and most of the content that is the same as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stacking part 2a includes a first substrate 211, a first support 22a, and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • At least one chip 231 of the plurality of chips 231 is fixed to the hard board portion 11, and at least one chip 231 is fixed to the first substrate 211.
  • the first support 22a includes a plurality of first elevated pillars 221 and a plurality of second elevated pillars 222 arranged in a stack, the plurality of first elevated pillars 221 are fixed to the rigid plate portion 11, and the plurality of second elevated pillars 222 Fixed to the first base plate 211, the plurality of second elevated pillars 222 and the plurality of first elevated pillars 221 are welded in one-to-one correspondence.
  • the upper stack portion 2a further includes a first encapsulation layer 241, a second encapsulation layer 242, and a third encapsulation layer 243.
  • the first packaging layer 241 is located between the rigid board portion 11 and the first substrate 211, and the first packaging layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11.
  • the second packaging layer 242 is located on the side of the first substrate 211 facing the rigid board portion 11, and the second packaging layer 242 encapsulates the plurality of second elevated pillars 222 and at least one chip 231 on the first substrate 211.
  • the third packaging layer 243 is located on the side of the first substrate 211 away from the hard board portion 11, and the third packaging layer 243 encapsulates at least one chip 231 on the first substrate 211.
  • the lower stack portion 2b includes a fourth encapsulation layer 244 and at least one chip 231.
  • the fourth encapsulation layer 244 is located on the side of the hard board portion 11 away from the first substrate 211, and the fourth encapsulation layer 244 encapsulates at least one chip 231 on the hard board portion 11.
  • the main control module 20 arranges devices on both sides of the hard board portion 11 and on both sides of the first substrate 211, so that four layers of devices are stacked in a direction perpendicular to the hard board portion 11.
  • the device arrangement density of the main control module 20 and the earphone body 100 is relatively high, and the integration level is relatively high.
  • FIG. 21 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the seventh embodiment. The following mainly describes the difference between the seventh embodiment and the foregoing embodiment, and most of the content that is the same as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stacking part 2a includes a first substrate 211 and a first support 22a.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • the lower stack part 2b includes a third substrate 213 and a second support 22b.
  • the third substrate 213 is located on the side of the rigid board portion 11 away from the first substrate 211, and is stacked with the rigid board portion 11 spaced apart, and the second supporting member 22b is located between the third substrate 213 and the rigid board portion 11, respectively The third substrate 213 is held against the rigid board portion 11.
  • the stack assembly 2 includes a plurality of chips 231, at least one chip 231 of the plurality of chips 231 is fixed to the hard board portion 11, at least one chip 231 is fixed to the first substrate 211, and at least one chip 231 is fixed to the third substrate 213.
  • the chip 231 fixed on the first substrate 211 is electrically connected to the hard board portion 11 via the first support 22a.
  • the chip 231 fixed on the third substrate 213 is electrically connected to the rigid board portion 11 via the second support 22b.
  • the first support 22a includes a plurality of first elevated pillars 221 and a plurality of second elevated pillars 222 arranged in a stack, the plurality of first elevated pillars 221 are fixed to the rigid plate portion 11, and the plurality of second elevated pillars 222 Fixed to the first base plate 211, the plurality of second elevated pillars 222 and the plurality of first elevated pillars 221 are welded in one-to-one correspondence.
  • the second support 22 b includes a plurality of fourth elevated columns 224, and the plurality of fourth elevated columns 224 are fixed to the rigid board portion 11.
  • the third substrate 213 is welded with a plurality of fourth elevated posts 224, and the chip 231 fixed to the third substrate 213 is located on the side of the third substrate 213 away from the rigid board portion 11.
  • the upper stack portion 2a further includes a first encapsulation layer 241, a second encapsulation layer 242, and a third encapsulation layer 243.
  • the first packaging layer 241 is located between the rigid board portion 11 and the first substrate 211, and the first packaging layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11.
  • the second packaging layer 242 is located on the side of the first substrate 211 facing the rigid board portion 11, and the second packaging layer 242 encapsulates the plurality of second elevated pillars 222 and at least one chip 231 on the first substrate 211.
  • the third encapsulation layer 243 is located on the side of the first substrate 211 away from the hard board portion 11, and the third encapsulation layer 243 encapsulates at least one chip 231 on the first substrate 211.
  • the lower stack portion 2b further includes a fourth encapsulation layer 244 and a fifth encapsulation layer 245.
  • the fourth packaging layer 244 is located on the side of the rigid board portion 11 away from the first substrate 211, and the fourth packaging layer 244 encapsulates the plurality of fourth elevated pillars 224 and at least one chip 231 on the rigid board portion 11.
  • the fifth encapsulation layer 245 is located on a side of the third substrate 213 away from the hard board portion 11, and the fifth encapsulation layer 245 encapsulates at least one chip 231 on the third substrate 213.
  • At least one first device 233 may be fixed to the first non-encapsulated area 1112 of the hard board portion 11, and the first device 233 is a device that is not suitable for plastic packaging.
  • the second non-encapsulated area 1122 of the hard board portion 11 may also be fixed with at least one first device 233.
  • At least one second device 234 may be fixed on the side of the first substrate 211 away from the hard board portion 11.
  • the second device 234 is a device that is not suitable for plastic packaging, and the second device 234 is located outside the third packaging layer 243.
  • At least one second device 234 may be fixed on the side of the third substrate 213 away from the hard board portion 11, and the second device 234 is located outside the fifth encapsulation layer 245.
  • the main control module 20 arranges devices on both sides of the rigid board portion 11, both sides of the first substrate 211, and the side of the third substrate 213 away from the rigid board portion 11, so as to be perpendicular to the rigid board portion 11
  • FIG. 22 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the eighth embodiment. The following mainly describes the difference between the eighth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stacking part 2a includes a first substrate 211 and a first support 22a.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • the lower stack part 2b includes a third substrate 213 and a second support 22b.
  • the third substrate 213 is located on the side of the rigid board portion 11 away from the first substrate 211, and is stacked with the rigid board portion 11 spaced apart, and the second supporting member 22b is located between the third substrate 213 and the rigid board portion 11, respectively The third substrate 213 is held against the rigid board portion 11.
  • the stack assembly 2 includes a plurality of chips 231, at least one chip 231 of the plurality of chips 231 is fixed to the hard board portion 11, at least one chip 231 is fixed to the first substrate 211, and at least one chip 231 is fixed to the third substrate 213.
  • the chip 231 fixed on the first substrate 211 is electrically connected to the hard board portion 11 via the first support 22a.
  • the chip 231 fixed on the third substrate 213 is electrically connected to the rigid board portion 11 via the second support 22b.
  • the first support 22a includes a plurality of first elevated pillars 221 and a plurality of second elevated pillars 222 arranged in a stack, the plurality of first elevated pillars 221 are fixed to the rigid plate portion 11, and the plurality of second elevated pillars 222 Fixed to the first base plate 211, the plurality of second elevated pillars 222 and the plurality of first elevated pillars 221 are welded in one-to-one correspondence.
  • the second support 22b includes a plurality of fourth elevated pillars 224 and a plurality of fifth elevated pillars 225 arranged in a stack, the plurality of fourth elevated pillars 224 are fixed to the rigid plate portion 11, and the plurality of fifth elevated pillars 225 Fixed to the third base plate 213, the plurality of fifth elevated pillars 225 and the plurality of fourth elevated pillars 224 are welded in one-to-one correspondence.
  • the upper stack portion 2a further includes a first encapsulation layer 241, a second encapsulation layer 242, and a third encapsulation layer 243.
  • the first packaging layer 241 is located between the rigid board portion 11 and the first substrate 211, and the first packaging layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11.
  • the second packaging layer 242 is located on the side of the first substrate 211 facing the rigid board portion 11, and the second packaging layer 242 encapsulates the plurality of second elevated pillars 222 and at least one chip 231 on the first substrate 211.
  • the third encapsulation layer 243 is located on the side of the first substrate 211 away from the hard board portion 11, and the third encapsulation layer 243 encapsulates at least one chip 231 on the first substrate 211.
  • the lower stack portion 2b further includes a fourth encapsulation layer 244, a fifth encapsulation layer 245, and a sixth encapsulation layer 246.
  • the fourth packaging layer 244 is located on the side of the rigid board portion 11 away from the first substrate 211, and the fourth packaging layer 244 encapsulates the plurality of fourth elevated pillars 224 and at least one chip 231 on the rigid board portion 11.
  • the fifth packaging layer 245 is located on the side of the third substrate 213 facing the hard board portion 11, and the fifth packaging layer 245 encapsulates the plurality of fifth elevated pillars 225 and at least one chip 231 on the third substrate 213.
  • the sixth packaging layer 246 is located on a side of the third substrate 213 away from the hard board portion 11, and the sixth packaging layer 246 encapsulates at least one chip 231 on the third substrate 213.
  • At least one first device 233 may be fixed to the first non-encapsulated area 1112 of the hard board portion 11, and the first device 233 is a device that is not suitable for plastic packaging.
  • the second non-encapsulated area 1122 of the hard board portion 11 may also be fixed with at least one first device 233.
  • At least one second device 234 may be fixed on the side of the first substrate 211 away from the hard board portion 11.
  • the second device 234 is a device that is not suitable for plastic packaging, and the second device 234 is located outside the third packaging layer 243.
  • At least one second device 234 may be fixed on the side of the third substrate 213 away from the hard board portion 11, and the second device 234 is located outside the sixth packaging layer 246.
  • the main control module 20 arranges devices on both sides of the rigid board portion 11, both sides of the first substrate 211, and both sides of the third substrate 213, so that the components are arranged in a direction perpendicular to the rigid board portion 11.
  • the upper stacking portion 2a and the lower stacking portion 2b respectively located on both sides of the hard board portion 11 are arranged substantially symmetrically, the main control module 20 integrates more layers of devices, and the device arrangement density is high.
  • FIG. 23 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the ninth embodiment. The following mainly describes the difference between the ninth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stacking part 2a includes a first substrate 211 and a first support 22a.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • the lower stack portion 2b includes a third substrate 213, a fourth substrate 214, and a plurality of sixth elevated pillars 226.
  • the third substrate 213 is located on the side of the rigid board portion 11 away from the first substrate 211, and is stacked with the rigid board portion 11 spaced apart, and the second supporting member 22b is located between the third substrate 213 and the rigid board portion 11, respectively The third substrate 213 is held against the rigid board portion 11.
  • the fourth substrate 214 is located on a side of the third substrate 213 away from the hard board portion 11, and is stacked with the third substrate 213 spaced apart from each other, and a plurality of sixth elevated posts 226 are located between the fourth substrate 214 and the third substrate 213 , Respectively resist the fourth substrate 214 and the third substrate 213.
  • the stack assembly 2 includes a plurality of chips 231, at least one chip 231 of the plurality of chips 231 is fixed to the rigid board portion 11, at least one chip 231 is fixed to the first substrate 211, at least one chip 231 is fixed to the third substrate 213, and at least one chip 231 is fixed to the third substrate 213.
  • the chip 231 is fixed to the fourth substrate 214.
  • the chip 231 fixed on the first substrate 211 is electrically connected to the hard board portion 11 via the first support 22a.
  • the chip 231 fixed on the third substrate 213 is electrically connected to the rigid board portion 11 via the second support 22b.
  • the chip 231 fixed on the fourth substrate 214 is electrically connected to the rigid board portion 11 via the sixth elevated post 226, the third substrate 213, and the second support 22b.
  • the first support 22a includes a plurality of first elevated pillars 221 and a plurality of second elevated pillars 222 arranged in a stack, the plurality of first elevated pillars 221 are fixed to the rigid plate portion 11, and the plurality of second elevated pillars 222 Fixed to the first base plate 211, the plurality of second elevated pillars 222 and the plurality of first elevated pillars 221 are welded in one-to-one correspondence.
  • the second support 22b includes a plurality of fourth elevated columns 224 stacked in a stack, and the plurality of fourth elevated columns 224 are fixed to the rigid board portion 11.
  • the third base plate 213 is welded with a plurality of fourth elevated pillars 224.
  • the upper stack portion 2a further includes a first encapsulation layer 241, a second encapsulation layer 242, and a third encapsulation layer 243.
  • the first packaging layer 241 is located between the rigid board portion 11 and the first substrate 211, and the first packaging layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11.
  • the second packaging layer 242 is located on the side of the first substrate 211 facing the rigid board portion 11, and the second packaging layer 242 encapsulates the plurality of second elevated pillars 222 and at least one chip 231 on the first substrate 211.
  • the third packaging layer 243 is located on the side of the first substrate 211 away from the hard board portion 11, and the third packaging layer 243 encapsulates at least one chip 231 on the first substrate 211.
  • the lower stack portion 2b further includes a fourth encapsulation layer 244, a fifth encapsulation layer 245, and a sixth encapsulation layer 246.
  • the fourth packaging layer 244 is located on the side of the rigid board portion 11 away from the first substrate 211, and the fourth packaging layer 244 encapsulates the plurality of fourth elevated pillars 224 and at least one chip 231 on the rigid board portion 11.
  • the fifth encapsulation layer 245 is located between the third substrate 213 and the fourth substrate 214.
  • the fifth encapsulation layer 245 encapsulates the plurality of sixth elevated pillars 226 and the at least one chip 231 on the third substrate 213 and at least one chip 231 Packaged on the fourth substrate 214.
  • the sixth packaging layer 246 is located on a side of the fourth substrate 214 away from the third substrate 213, and the sixth packaging layer 246 encapsulates at least one chip 231 on the fourth substrate 214.
  • At least one first device 233 may be fixed to the first non-encapsulated area 1112 of the hard board portion 11, and the first device 233 is a device that is not suitable for plastic packaging.
  • the second non-encapsulated area 1122 of the hard board portion 11 may also be fixed with at least one first device 233.
  • At least one second device 234 may be fixed on the side of the first substrate 211 away from the hard board portion 11.
  • the second device 234 is a device that is not suitable for plastic packaging, and the second device 234 is located outside the third packaging layer 243.
  • At least one second device 234 may be fixed on the side of the fourth substrate 214 away from the third substrate 213, and the second device 234 is located outside the sixth encapsulation layer 246.
  • the main control module 20 is arranged on both sides of the rigid board portion 11, both sides of the first substrate 211, the side of the third substrate 213 away from the rigid board portion 11, and both sides of the fourth substrate 214.
  • the devices are arranged so that seven layers of devices are stacked in a direction perpendicular to the hard board portion 11, so the device arrangement density of the main control module 20 and the earphone body 100 is relatively high, and the integration degree is relatively high.
  • FIG. 24 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the tenth embodiment. The following mainly describes the difference between the tenth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stacking part 2a includes a first substrate 211 and a first support 22a.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • the lower stack part 2b includes a third substrate 213 and a second support 22b.
  • the third substrate 213 is located on a side of the rigid board portion 11 away from the first substrate 211, and the third substrate 213 and the rigid board portion 11 are stacked and arranged to be spaced apart from each other.
  • the second supporting member 22b is located between the third substrate 213 and the rigid board portion 11, and abuts against the third substrate 213 and the rigid board portion 11, respectively.
  • the first support 22 a includes a plurality of first elevated columns 221
  • the second support 22 b includes a plurality of fourth elevated columns 224.
  • the structure of the first elevated column 221 and the fourth elevated column 224 refer to the related surface of the aforementioned second column 2202 (shown in FIG. 8 ).
  • the upper stack portion 2a also includes a first encapsulation layer 241 and a second encapsulation layer 242.
  • the first encapsulation layer 241 is located between the rigid board portion 11 and the first substrate 211.
  • the first encapsulation layer 241 encapsulates the plurality of first elevated pillars 221 and at least one chip 231 on the rigid board portion 11 and at least one chip 231 Packaged on the first substrate 211.
  • the first encapsulation layer 241 encapsulates the devices located between the hard board part 11 and the first substrate 211.
  • the first substrate 211 can be fixed (for example, welding or bonding) to the plurality of first elevated posts 221, and then the packaging material can be filled between the first substrate 211 and the rigid board portion 11. To form a first encapsulation layer 241.
  • the second packaging layer 242 is fixed on the side of the first substrate 211 away from the hard board portion 11, and the second packaging layer 242 encapsulates at least one chip 231 on the first substrate 211.
  • the lower stack portion 2b further includes a fourth encapsulation layer 244 and a fifth encapsulation layer 245.
  • the fourth encapsulation layer 244 is located between the rigid board portion 11 and the third substrate 213.
  • the fourth encapsulation layer 244 encapsulates a plurality of fourth elevated pillars 224 and at least one chip 231 on the rigid board portion 11, and at least one chip 231 Packaged on the third substrate 213.
  • the fourth encapsulation layer 244 encapsulates the devices located between the hard board portion 11 and the third substrate 213.
  • the third substrate 213 can be fixed (for example, welding or bonding) to the fourth elevated pillars 224, and then the packaging material can be filled between the third substrate 213 and the rigid board portion 11.
  • the fifth packaging layer 245 is fixed to a side of the third substrate 213 away from the hard board portion 11, and the fifth packaging layer 245 encapsulates at least one chip 231 on the third substrate 213.
  • the main control module 20 arranges devices on both sides of the rigid board portion 11, both sides of the first substrate 211, and both sides of the third substrate 213, so that the components are arranged in a direction perpendicular to the rigid board portion 11.
  • FIG. 25 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the eleventh embodiment. The following mainly describes the difference between the eleventh embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacked assembly 2 includes a first substrate 211, a first support 22 a, and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • At least one chip 231 of the plurality of chips 231 is fixed to the hard board portion 11, and at least one chip 231 is fixed to the first substrate 211.
  • the first support 22 a is a first elevated board 227, the first elevated board 227 has a hollow structure, and at least one chip 231 is located inside the first elevated board 227.
  • the chip 231 fixed on the first substrate 211 is electrically connected to the hard board portion 11 via the first elevated board 227.
  • the first elevated board 227 is a circuit board structure, and the first elevated board 227 may be fixed to the rigid board portion 11 by assembly, or may be integrally formed with the rigid board portion 11.
  • the main control module 20 supports a device arrangement space between the first substrate 211 and the hard board portion 11 through the first elevated board 227, so that the main control module 20 can integrate at least two layers of devices. Therefore, the device arrangement density is improved, and the device integration degree of the main control module 20 and the earphone body 100 is relatively high.
  • the main control module 20 further includes a plurality of chip matching devices 232, at least one chip matching device 232 of the plurality of chip matching devices 232 is fixed to the hard board portion 11, and at least one chip matching device 232 is fixed to the first substrate 211.
  • the devices fixed to the rigid board portion 11 are all located on the side of the rigid board portion 11 facing the first substrate 211, and some devices are located on the inner side of the first elevated board 227, and some devices are located on the first elevated board 227. A high board 227 outside.
  • the devices fixed to the rigid board portion 11 are all located on the side of the rigid board portion 11 facing the first substrate 211 and located inside the first elevated board 227.
  • the part of the device fixed to the hard board portion 11 is located on the side of the hard board portion 11 facing the first substrate 211, and part is located on the side of the hard board portion 11 away from the first substrate 211.
  • the part of the device fixed to the first substrate 211 is located between the first substrate 211 and the rigid board portion 11, and the part is located on the side of the first substrate 211 away from the rigid board portion 11.
  • the first elevated plate 227 is connected to the periphery of the first base plate 211, and the device fixed on the side of the first base plate 211 facing the hard board portion 11 is located inside the first elevated plate 227.
  • the devices fixed on the first substrate 211 are all located between the first substrate 211 and the hard board portion 11 or the side of the first substrate 211 away from the hard board portion 11.
  • FIG. 26 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the twelfth embodiment. The following mainly describes the difference between the twelfth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stacking part 2a includes a first substrate 211, a first support 22a, and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • At least one chip 231 of the plurality of chips 231 is fixed to the hard board portion 11, and at least one chip 231 is fixed to the first substrate 211.
  • the first support 22 a is a first elevated board 227, the first elevated board 227 has a hollow structure, and at least one chip 231 is located inside the first elevated board 227.
  • the lower stack portion 2b includes at least one chip 231 fixed on the side of the hard board portion 11 away from the first substrate 211.
  • At least one chip 231 of the plurality of chips 231 is fixed on the side of the hard board portion 11 away from the first substrate 211, at least one chip 231 is fixed on the side of the hard board portion 11 facing the first substrate 211, At least one chip 231 is fixed on the side of the first substrate 211 facing the hard board portion 11, and at least one chip 231 is fixed on the side of the first substrate 211 away from the hard board portion 11. That is, devices are arranged on both sides of the hard board portion 11, and devices are arranged on both sides of the first substrate 211, so the main control module 20 integrates four layers of devices, the device arrangement density is high, and the main control module 20 And the device integration of the earphone body 100 is high.
  • the upper stack portion 2a further includes a first packaging layer 241, which is located on a side of the first substrate 211 away from the hard board portion 11, and at least one chip 231 is packaged.
  • the first packaging layer 241 may also be packaged with at least one chip matching device 232.
  • the first encapsulation layer 241 can perform full-scale encapsulation (as shown in FIG. 26) or partial encapsulation of the devices fixed on the side of the first substrate 211 away from the hard board portion 11.
  • FIG. 27 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the thirteenth embodiment. The following mainly describes the difference between the thirteenth embodiment and the foregoing embodiment, and most of the content that is the same as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stacking part 2 a includes a first substrate 211, a second substrate 212, a first support 22 a, a plurality of third elevated pillars 223 and a plurality of chips 231.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first support 22a is located between the first substrate 211 and the rigid board portion 11, and abuts against the first substrate 211 and the rigid board portion 11, respectively.
  • the second substrate 212 is located on a side of the first substrate 211 away from the hard board portion 11 and is stacked and spaced apart from the first substrate 211.
  • the plurality of third elevated pillars 223 are located between the second substrate 212 and the first substrate 211, and respectively resist the second substrate 212 and the first substrate 211. At least one chip 231 of the plurality of chips 231 is fixed to the hard board portion 11, at least one chip 231 is fixed to the first substrate 211, and at least one chip 231 is fixed to the second substrate 212.
  • the chip 231 fixed on the first substrate 211 is electrically connected to the rigid board portion 11 through the first support 22a, and the chip 231 fixed on the second substrate 212 is passed through a plurality of third elevated posts 223, the first substrate 211, and the first support 22a is electrically connected to the rigid board portion 11.
  • the lower stack portion 2b includes at least one chip 231 fixed on the side of the hard board portion 11 away from the first substrate 211.
  • the first support 22 a is a first elevated board 227, the first elevated board 227 has a hollow structure, and at least one chip 231 is located inside the first elevated board 227.
  • the first elevated board 227 is a circuit board structure, and the first elevated board 227 may be fixed to the rigid board portion 11 by assembly, or may be integrally formed with the rigid board portion 11.
  • the third elevated column 223 may adopt the structure of the second column 2202 described above.
  • the upper stack portion 2a also includes a first encapsulation layer 241 and a second encapsulation layer 242.
  • the first packaging layer 241 is located between the first substrate 211 and the second substrate 212 and is used for packaging the devices between the first substrate 211 and the second substrate 212.
  • the second encapsulation layer 242 is located on the side of the second substrate 212 away from the first substrate 211.
  • the second encapsulation layer 242 can partially encapsulate the devices fixed on the side of the second substrate 212 away from the first substrate 211 (as shown in FIG. 27). Show) or full-size package.
  • devices are arranged on both sides of the hard board portion 11, on both sides of the first substrate 211, and on both sides of the second substrate 212.
  • the main control module 20 integrates six layers of devices, and the device arrangement density is The main control module 20 and the earphone body 100 have a high degree of integration.
  • one or more of the rigid board portion 11, the first substrate 211, or the second substrate 212 may also have devices arranged on one side.
  • At least one second device 234 may be fixed on the side of the second substrate 212 away from the first substrate 211.
  • the second device 234 is a device that is not suitable for plastic packaging, and the second device 234 is located outside the second packaging layer 242.
  • At least one first device 233 may be fixed on the hard board portion 11, the first device 233 is a device that is not suitable for plastic packaging, and the first device 233 is located outside the first elevated board 227.
  • FIG. 28 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the fourteenth embodiment. The following mainly describes the difference between the fourteenth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a flexible and hard combined circuit board 1 and a stack assembly 2.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the stacked assembly 2 is stacked on the rigid board portion 11.
  • the stacking assembly 2 includes an upper stacking portion 2a and a lower stacking portion 2b located on both sides of the rigid board portion 11, respectively.
  • the upper stacking part 2a includes a first substrate 211 and a first elevated board 227.
  • the first substrate 211 and the hard board portion 11 are stacked and arranged to be spaced apart from each other.
  • the first elevated board 227 is located between the first base plate 211 and the rigid board portion 11 and abuts against the first base board 211 and the rigid board portion 11 respectively.
  • the lower stacking part 2b includes a second base plate 212 and a second elevated plate 228.
  • the second substrate 212 is located on a side of the hard board part 11 away from the first substrate 211 and is stacked with the hard board part 11 to be spaced apart from each other.
  • the second elevated board 228 is located between the second base plate 212 and the rigid board portion 11 and resists the second base board 212 and the rigid board portion 11 respectively.
  • the stack assembly 2 includes a plurality of chips 231, among the plurality of chips 231, at least one chip 231 is fixed to the hard board portion 11, at least one chip 231 is fixed to the first substrate 211, and at least one chip 231 is fixed to the second substrate 212.
  • the first elevated board 227 has a hollow structure, and at least one chip 231 is located inside the first elevated board 227.
  • the chip 231 fixed on the first substrate 211 is electrically connected to the hard board portion 11 via the first elevated board 227.
  • the second elevated board 228 has a hollow structure, and at least one chip 231 is located inside the second elevated board 228.
  • the chip 231 fixed on the second substrate 212 is electrically connected to the hard board portion 11 via the second elevated board 228.
  • the main control module 20 fixes the first substrate 211 to one side of the rigid board portion 11 through the first elevated plate 227, and fixes the second substrate 212 to the rigid board portion through the second elevated plate 228 11, thus forming a stack structure of three-layer circuit boards.
  • Devices can be flexibly arranged on one or both sides of these three-layer circuit boards to form a stack structure of at least three layers of devices. Therefore, the main control module 20
  • the device arrangement density is high, and the integration is high.
  • At least one chip 231 and at least one chip matching device 232 are fixed on both sides of the hard board portion 11, and at least one chip 231 and at least one chip are fixed on both sides of the first substrate 211
  • the matching device 232 at least one chip 231 and at least one chip matching device 232 are fixed on the side of the second substrate 212 facing the hard board portion 11, and the main control module 20 forms a stacked structure of five-layer devices.
  • FIG. 29 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the fifteenth embodiment. The following mainly describes the difference between the fifteenth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • At least one chip 231 and at least one chip matching device 232 may also be fixed on the side of the second substrate 212 away from the hard board portion 11, and the main control module 20 forms a stack structure of six layers of devices.
  • the main control module 20 further includes a first encapsulation layer 241.
  • the first encapsulation layer 241 is located on the side of the second substrate 212 away from the hard board portion 11.
  • the first encapsulation layer 241 can be fixed to the second substrate 212 away from the hard board portion 11.
  • the device on one side is partially packaged (as shown in Figure 29) or full-size package.
  • FIG. 30 is a schematic diagram of the structure of the main control module 20 shown in FIG. 2 in the sixteenth embodiment. The following mainly describes the difference between the sixteenth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a first substrate 211, a second substrate 212, a rigid-flex circuit board 1 and a plurality of chips 231.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11.
  • the rigid board portion 11 is a hollow structure, and the rigid board portion 11 is located in the earplug portion 1002 (see 4), the first soft board portion 12 is located in the earplug portion 1002 and one end is connected to the hard board portion 11, one end of the second soft board portion 13 is connected to the hard board portion 11, and the other end extends to the ear handle 1001 (see FIG. 4).
  • the first substrate 211 and the second substrate 212 are stacked to be spaced apart from each other, and the rigid board portion 11 is fixed between the first substrate 211 and the second substrate 212. At least one chip 231 of the plurality of chips 231 is fixed to the first substrate 211, at least one chip 231 of the plurality of chips 231 is fixed to the second substrate 212, and at least one chip 231 is located inside the rigid board portion 11 and fixed to the first substrate 211 and the chip 231 of the second substrate 212 are electrically connected to the rigid board portion 11.
  • the rigid board portion 11 of the rigid-flex circuit board 1 is used as an elevated structure between the first substrate 211 and the second substrate 212, so that a gap is formed between the first substrate 211 and the second substrate 212.
  • Devices can be arranged on one side or both sides of one substrate 211 and one side or both sides of the second substrate 212, so the main control module 20 integrates at least two layers of devices arranged in a stack, thereby having a larger device The arrangement density is high, and the device integration of the main control module 20 and the earphone body 100 is high.
  • At least one chip 231 and at least one chip matching device 232 are arranged on both sides of the first substrate 211, and at least one chip 231 is arranged on both sides of the second substrate 212.
  • the device 232 is matched with at least one chip.
  • Devices that are not suitable for plastic packaging may also be arranged on the first substrate 211 and/or the second substrate 212.
  • FIG. 31 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the seventeenth embodiment. The following mainly describes the difference between the seventeenth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 further includes a first encapsulation layer 241, a second encapsulation layer 242, a third encapsulation layer 243, and a fourth encapsulation layer 244.
  • the first packaging layer 241 is located on the side of the first substrate 211 facing the second substrate 212, and the first packaging layer 241 is located on the inner side of the hard board portion 11.
  • the first encapsulation layer 241 encapsulates at least one chip 231, and may also encapsulate at least one chip matching device 232.
  • the second encapsulation layer 242 is located on the side of the first substrate 211 away from the second substrate 212.
  • the second encapsulation layer 242 encapsulates at least one chip 231, and may also encapsulate at least one chip matching device 232.
  • At least one first device 233 may be fixed on the side of the first substrate 211 away from the second substrate 212.
  • the first device 233 is a device that is not suitable for plastic packaging, and the first device 233 is located outside the second encapsulation layer 242.
  • the third packaging layer 243 is located on the side of the second substrate 212 facing the first substrate 211, and the third packaging layer 243 is located on the inner side of the hard board portion 11.
  • the third encapsulation layer 243 encapsulates at least one chip 231, and may also encapsulate at least one chip matching device 232.
  • the fourth encapsulation layer 244 is located on the side of the second substrate 212 away from the first substrate 211.
  • the fourth encapsulation layer 244 encapsulates at least one chip 231, and may also encapsulate at least one chip matching device 232.
  • At least one second device 234 may be fixed on the side of the second substrate 212 away from the first substrate 211.
  • the second device 234 is a device that is not suitable for plastic packaging, and the second device 234 is located outside the fourth encapsulation layer 244.
  • FIG. 32 is a schematic structural diagram of the main control module 20 shown in FIG. 2 in the eighteenth embodiment. The following mainly describes the difference between the eighteenth embodiment and the foregoing embodiment, and most of the same content as the foregoing embodiment will not be repeated.
  • the main control module 20 includes a first substrate 211, a second substrate 212, a third substrate 213, a rigid-flex circuit board 1, a plurality of first elevated pillars 221 and a plurality of chips 231.
  • the rigid-flex circuit board 1 includes a rigid board portion 11 and a first flexible board portion 12 and a second flexible board portion 13 connected to the rigid board portion 11, and the rigid board portion 11 has a hollow structure.
  • the first substrate 211 and the second substrate 212 are stacked to be spaced apart from each other, and the rigid board portion 11 is fixed between the first substrate 211 and the second substrate 212.
  • the third substrate 213 is located on the side of the first substrate 211 away from the second substrate 212.
  • the third substrate 213 and the first substrate 211 are stacked to be spaced apart from each other.
  • a plurality of first elevated posts 221 are fixed to the third substrate 213 and the first Between the substrates 211.
  • first elevated column 221 please refer to the related description of the second column 2202 (see FIG. 8) in the foregoing.
  • At least one chip 231 and at least one chip matching device 232 are distributed on both sides of the first substrate 211, both sides of the second substrate 212, and both sides of the third substrate 213.
  • the devices fixed on the third substrate 213 are electrically connected to the rigid board portion 11 via the plurality of first elevated pillars 221 and the first substrate 211.
  • the main control module 20 further includes a first encapsulation layer 241, a second encapsulation layer 242, a third encapsulation layer 243, a fourth encapsulation layer 244, and a fifth encapsulation layer 245.
  • the first encapsulation layer 241 is located on the side of the first substrate 211 facing the second substrate 212, the first encapsulation layer 241 is located inside the hard board portion 11, and the first encapsulation layer 241 encapsulates at least two devices.
  • the second packaging layer 242 is located between the first substrate 211 and the third substrate 213, and the second packaging layer 242 encapsulates the plurality of first elevated pillars 221 and devices located between the first substrate 211 and the third substrate 213.
  • the third encapsulation layer 243 is located on a side of the third substrate 213 away from the first substrate 211, and the third encapsulation layer 243 encapsulates at least two devices. At least one first device 233 may be fixed on the side of the third substrate 213 away from the first substrate 211.
  • the first device 233 is a device that is not suitable for plastic packaging, and the first device 233 is located outside the third encapsulation layer 243.
  • the fourth encapsulation layer 244 is located on the side of the second substrate 212 facing the first substrate 211, and the fourth encapsulation layer 244 is located inside the hard board portion 11.
  • the third encapsulation layer 243 encapsulates at least two devices.
  • the fifth encapsulation layer 245 is located on a side of the second substrate 212 away from the first substrate 211, and the fifth encapsulation layer 245 encapsulates at least two devices.
  • At least one second device 234 may be fixed on the side of the second substrate 212 away from the first substrate 211.
  • the second device 234 is a device that is not suitable for plastic packaging, and the second device 234 is located outside the fifth encapsulation layer 245.
  • the main control module 20 includes stacked three-layer circuit boards (a first substrate 211, a second substrate 212, and a third substrate 213), and devices can be arranged on both sides of each circuit board, thereby integrating There are six layers of devices, the device arrangement density is high, and the device integration of the main control module 20 and the earphone body 100 is high.

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Abstract

本申请实施例公开一种无线耳机,具有耳柄部和连接耳柄部的耳塞部,无线耳机包括主控模组,主控模组包括软硬结合电路板、第一基板、第一支撑件以及多个芯片。软硬结合电路板包括硬板部及连接硬板部的第一软板部和第二软板部,硬板部位于耳塞部,第一软板部位于耳塞部且一端连接硬板部,第二软板部的一端连接硬板部、另一端延伸至耳柄部。第一基板与硬板部彼此间隔地堆叠设置,第一支撑件位于第一基板与硬板部之间、分别与第一基板和硬板部抵持,多个芯片中的至少一个芯片固定于硬板部,多个芯片中的至少一个芯片固定于第一基板,固定于第一基板的芯片经第一支撑件电连接硬板部。无线耳机的硬板部上堆叠有多层器件,器件集成度较高。

Description

无线耳机
本申请要求于2019年10月31日提交中国专利局、申请号为201911056406.0、申请名称为“无线耳机”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及电子产品技术领域,尤其涉及一种无线耳机。
背景技术
随着科技的进步,无线耳机内部集成的芯片数量不断增加,以实现多功能化及智能化。由于受无线耳机形状的限定,无线耳机内部的空间无法排布板面面积较大的硬质电路板,因此传统的无线耳机通常设置有硬质的主电路板及多个副电路板,并依据各电路板的板面大小、将无线耳机的组成控制系统的多个器件拆分排布于不同的电路板,再通过柔性电路板连接不同的电路板,以实现不同器件之间的连接,导致无线耳机的器件集成度低。
发明内容
本申请实施例的目的在于提供一种器件集成度较高的无线耳机。
第一方面,本申请实施例提供一种无线耳机。无线耳机可以无线连接(例如蓝牙连接)手机、笔记本电脑、平板、智能手表等电子设备,以与电子设备配合使用,用于处理电子设备的媒体、通话等音频业务,或者处理其他的一些数据业务。
无线耳机具有耳柄部和连接耳柄部的耳塞部。无线耳机包括主控模组,主控模组包括软硬结合电路板、第一基板、第一支撑件以及多个芯片。软硬结合电路板包括硬板部及连接硬板部的第一软板部和第二软板部。硬板部位于耳塞部,第一软板部位于耳塞部且一端连接硬板部,第二软板部的一端连接硬板部、另一端延伸至耳柄部。示例性的,无线耳机包括多个功能模组。第一软板部用于连接位于耳塞部的部分功能模组。第二软板部用于连接位于耳塞部的部分功能模组和位于耳柄部的功能模组。
第一基板与硬板部彼此间隔地堆叠设置。示例性的,第一基板在硬板部的投影落入硬板部的范围内。第一支撑件位于第一基板与硬板部之间、分别与第一基板和硬板部抵持。多个芯片中的至少一个芯片固定于硬板部,多个芯片中的至少一个芯片固定于第一基板,固定于第一基板的芯片经第一支撑件电连接硬板部。主控模组的固定于硬板部及硬板部上方、硬板部下方的部件形成堆叠组件。也即,主控模组包括软硬结合电路板和堆叠组件,堆叠组件固定于硬板部,堆叠组件包括第一基板、第一支撑件及多个芯片。
在本实施例中,主控模组包括堆叠设置的第一基板和硬板部,且至少一个芯片固定于第一基板、至少一个芯片固定于硬板部,因此主控模组的堆叠组件能够形成多层器件堆叠结构,无线耳机的芯片可以全部集成或大部分集成于堆叠组件中,且堆叠组件中的器件能够通过软硬结合电路板的多个软板部连接至无线耳机的多个功能模组,因此能够将无线耳机的控制系统完整地整合于堆叠组件中,从而将传统的无线耳机中负责承载控制系统器件的多块副电路板省去,提高了主控模组和无线耳机的器件集成度。
此外,在垂直于硬板部的方向上堆叠有多层器件的堆叠组件的厚度尺寸较大。由于堆 叠组件固定于硬板部,硬板部位于耳塞部,因此堆叠组件位于耳塞部,堆叠组件的安装难度较小,且堆叠组件能够充分利用耳塞部的内腔空间,从而提高无线耳机的空间利用率。一些实施例中,硬板部及堆叠组件的外轮廓形状可以与耳塞部内腔空间的形状相适配,例如采用圆形或近似圆形的外轮廓,从而进一步提高无线耳机的空间利用率。
在本实施例中,由于固定于第一基板的芯片能够经第一支撑件电连接至硬板部,因此无需在第一基板与硬板部之间设置用于传输信号的柔性电路板,第一基板的芯片与硬板部之间的信号传输路径由第一支撑件实现,信号传输路径短,使得信号传输质量更佳,例如,音频类信号在传输时发生失真的风险较小。此外,本实施例的主控模组不再设置连接于第一基板与硬板部之间的柔性电路板,也能够避免因柔性电路板发生弯折、且弯折角度较大,而在弯折区造成断裂开路,导致产品失效或良率很低的问题。
一种可选的实施例中,主控模组还包括多个芯片匹配器件。多个芯片匹配器件中的至少一个芯片匹配器件固定于第一基板、至少一个芯片匹配器件固定于硬板部。固定于第一基板的芯片匹配器件经第一支撑件电连接硬板部。多个芯片匹配器件的排布位置可以随其对应的芯片进行排布。
一种可选的实施例中,第一支撑件包括多个第一架高柱,多个第一架高柱位于硬板部与第一基板之间且固定于硬板部。主控模组还包括第一封装层,第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部。此时,多个第一架高柱远离硬板部的一端端面相对第一封装层露出,第一基板可连接于第一架高柱的该端面。其中,第一封装层还将多个芯片匹配器件封装于硬板部。第一封装层能够保护其封装的器件,以使主控模组的可靠性较高、使用寿命较长。
在本实施例中,第一封装层直接将多个器件封装于硬板部,使得多个器件能够直接通过硬板部及第一软板部或第二软板部与无线耳机的功能模组相连接,相较于传统封装层中器件需要先封装于一个承载基板,将承载基板焊接于电路板后才能与外部模组连接的方式,本实施例的连接方式更为直接、结构更为简单。
一种可选的实施例中,硬板部包括朝向第一基板的第一表面。第一表面包括第一封装区域及第一非封装区域,第一封装层位于第一封装区域,第一非封装区域位于第一封装区域周边。换言之,第一封装区域与硬板部的边缘之间具有一定间距。在本实施例中,第一非封装区域能够在第一封装层的成型工序中为模具提供支撑空间,避免因模具抵持第一软板部或第二软板部而导致软硬结合电路板产生破损,从而保证主控模组的生产良率。
一种可选的实施例中,主控模组还包括至少一个第一器件,至少一个第一器件固定于第一非封装区域。示例性的,第一器件为不宜进行塑封的器件,包括但不限于带有空腔的声表面波滤波器、带有空腔的晶振、压力敏感的器件等。
在本实施例中,硬板部的第一非封装区域既在第一封装层的成型过程中为模具提供抵持空间,还用于排布不宜封装的第一器件,因此主控模组复用了第一非封装区域的空间,提高了空间利用率。
一种可选的实施例中,第一基板焊接多个第一架高柱。主控模组还包括第二封装层,第二封装层位于第一基板远离硬板部的一侧,第二封装层将至少一个芯片封装于第一基板。其中,第二封装层还可以将至少一个芯片匹配器件封装于第一基板。第二封装层能够保护 其封装的器件,以使主控模组的可靠性较高、使用寿命较长。
一种可选的实施例中,第一支撑件还包括多个第二架高柱,多个第二架高柱固定于第一基板朝向硬板部的一侧,多个第二架高柱与多个第一架高柱一一对应地焊接。主控模组还包括第二封装层及第三封装层,第二封装层位于第一基板远离硬板部的一侧,第二封装层将至少一个芯片封装于第一基板,第三封装层位于第一基板朝向硬板部的一侧,第三封装层将多个第二架高柱及至少一个芯片封装于第一基板。
在本实施例中,由于第一支撑件包括堆叠设置的第一架高柱和第二架高柱,第一支撑件具有足够的高度,因此第一基板与硬板部之间的间距较大,第一基板与硬板部之间能够排布两层器件,使得主控模组在垂直于硬板部方向上集成有三层器件,主控模组及无线耳机的器件排布密度更大,集成度更高。此外,主控模组的多个芯片于三层器件的排布方案也更为灵活和多样。
一种可选的实施例中,主控模组还包括至少一个第二器件,至少一个第二器件固定于第一基板远离硬板部的一侧,且位于第二封装层的外侧。第二器件为不宜进行塑封的器件,包括但不限于带有空腔的声表面波滤波器、带有空腔的晶振、压力敏感的器件等。
在本实施例中,主控模组中的不宜塑封的器件可以依据功能选择及芯片的排布位置,灵活排布于硬板部和/或第一基板,提高了主控模组的器件排布的灵活性和多样化。
一种可选的实施例中,主控模组还包括第二基板、第二封装层、第三封装层以及多个第三架高柱。第一基板焊接多个第一架高柱,固定于第一基板的芯片位于第一基板远离硬板部的一侧,第二基板位于第一基板远离硬板部的一侧,第二基板与第一基板彼此间隔地堆叠设置,多个第三架高柱位于第二基板与第一基板之间、分别与第二基板和第一基板抵持。第二封装层位于第二基板与第一基板之间,多个第三架高柱和固定于第一基板的芯片封装于第二封装层中。多个芯片中的至少一个芯片封装于第二封装层中、并固定于第二基板。第三封装层位于第二基板远离第一基板的一侧,多个芯片中的至少一个芯片封装于第三封装层中、并固定于第二基板。固定于第二基板的芯片经多个第三架高柱、第一基板及多个第一架高柱电连接硬板部。
在本实施例中,主控模组在硬板部朝向第一基板的一侧、第一基板远离硬板部的一侧、第二基板朝向第一基板的一侧以及第二基板远离第一基板的一侧均排布器件,从而在垂直于硬板部的方向上堆叠有四层器件,提高了器件排布密度和集成度。
一种可选的实施例中,第一封装层接触第一基板。主控模组还包括第二封装层,第二封装层固定于第一基板远离硬板部的一侧。固定于第一基板的芯片部分封装于第一封装层、部分封装于第二封装层。在本实施例中,主控模组在硬板部朝向第一基板的一侧、第一基板朝向硬板部的一侧以及第一基板远离硬板部的一侧均排布器件,从而在垂直于硬板部的方向上堆叠有三层器件,因此主控模组及无线耳机的器件排布密度较大、集成度较高。
一种可选的实施例中,主控模组还包括第四封装层,第四封装层固定于硬板部远离第一基板的一侧,固定于硬板部的芯片中的至少一个芯片封装于第四封装层中。
在本实施例中,主控模组在硬板部远离第一基板的一侧、硬板部朝向第一基板的一侧以及第一基板远离硬板部的一侧均排布器件,从而在垂直于硬板部的方向上堆叠有三层器件,因此主控模组及无线耳机的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件包括堆叠设置的多个第一架高柱和多个第二架高柱,多个第一架高柱固定于硬板部,多个第二架高柱固定于第一基板,多个第二架高柱与多个第一架高柱一一对应地焊接。主控模组还包括第一封装层、第二封装层、第三封装层以及第四封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部。第二封装层位于第一基板朝向硬板部的一侧,第二封装层将多个第二架高柱及至少一个芯片封装于第一基板。第三封装层位于第一基板远离硬板部的一侧,第三封装层将至少一个芯片封装于第一基板。第四封装层位于硬板部远离第一基板的一侧,第四封装层将至少一个芯片封装于硬板部。
在本实施例中,主控模组在硬板部的两侧以及第一基板的两侧均排布器件,从而在垂直于硬板部的方向上堆叠有四层器件,因此主控模组及无线耳机的器件排布密度较大、集成度较高。
一种可选的实施例中,主控模组还包括第三基板和第二支撑件。第三基板位于硬板部远离第一基板的一侧,且与硬板部彼此间隔地堆叠设置,第二支撑件位于第三基板与硬板部之间、分别与第三基板和硬板部抵持,多个芯片中的至少一个芯片固定于第三基板,固定于第三基板的芯片经第二支撑件电连接硬板部。在本实施例中,硬板部的两侧均可以堆叠一层或多层器件,进一步提高了主控模组及无线耳机的器件集成度。
一种可选的实施例中,第一支撑件包括堆叠设置的多个第一架高柱和多个第二架高柱,多个第一架高柱固定于硬板部,多个第二架高柱固定于第一基板,多个第二架高柱与多个第一架高柱一一对应地焊接。第二支撑件包括多个第四架高柱,多个第四架高柱固定于硬板部。第三基板焊接多个第四架高柱,固定于第三基板的芯片位于第三基板远离硬板部的一侧。
主控模组还包括第一封装层、第二封装层、第三封装层、第四封装层以及第五封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部。第二封装层位于第一基板朝向硬板部的一侧,第二封装层将多个第二架高柱及至少一个芯片封装于第一基板。第三封装层位于第一基板远离硬板部的一侧,第三封装层将至少一个芯片封装于第一基板。第四封装层位于硬板部远离第一基板的一侧,第四封装层将多个第四架高柱及至少一个芯片封装于硬板部。第五封装层位于第三基板远离硬板部的一侧,第五封装层将至少一个芯片封装于第三基板。
在本实施例中,主控模组在硬板部的两侧、第一基板的两侧以及第三基板远离硬板部的一侧均排布器件,从而在垂直于硬板部的方向上堆叠有五层器件,因此主控模组及无线耳机的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件包括堆叠设置的多个第一架高柱和多个第二架高柱,多个第一架高柱固定于硬板部,多个第二架高柱固定于第一基板,多个第二架高柱与多个第一架高柱一一对应地焊接。第二支撑件包括堆叠设置的多个第四架高柱和多个第五架高柱,多个第四架高柱固定于硬板部,多个第五架高柱固定于第三基板,多个第五架高柱与多个第四架高柱一一对应地焊接。
主控模组还包括第一封装层、第二封装层、第三封装层、第四封装层、第五封装层以及第六封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及 至少一个芯片封装于硬板部。第二封装层位于第一基板朝向硬板部的一侧,第二封装层将多个第二架高柱及至少一个芯片封装于第一基板。第三封装层位于第一基板远离硬板部的一侧,第三封装层将至少一个芯片封装于第一基板。第四封装层位于硬板部远离第一基板的一侧,第四封装层将多个第四架高柱及至少一个芯片封装于硬板部。第五封装层位于第三基板朝向硬板部的一侧,第五封装层将多个第五架高柱及至少一个芯片封装于第三基板。第六封装层位于第三基板远离硬板部的一侧,第六封装层将至少一个芯片封装于第三基板。
在本实施例中,主控模组在硬板部的两侧、第一基板的两侧以及第三基板的两侧均排布器件,从而在垂直于硬板部的方向上堆叠有六层器件,因此主控模组及无线耳机的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件包括堆叠设置的多个第一架高柱和多个第二架高柱,多个第一架高柱固定于硬板部,多个第二架高柱固定于第一基板,多个第二架高柱与多个第一架高柱一一对应地焊接。第二支撑件包括堆叠设置的多个第四架高柱,多个第四架高柱固定于硬板部。第三基板焊接多个第四架高柱。
主控模组还包括第四基板以及多个第六架高柱。第四基板位于第三基板远离硬板部的一侧,且与第三基板彼此间隔地堆叠设置,多个第六架高柱位于第四基板与第三基板之间、并支撑第四基板与第三基板。多个芯片中的至少一个芯片固定于第四基板。固定于第四基板的芯片经第六架高柱、第三基板及第二支撑件电连接硬板部。
主控模组还包括第一封装层、第二封装层、第三封装层、第四封装层、第五封装层以及第六封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部。第二封装层位于第一基板朝向硬板部的一侧,第二封装层将多个第二架高柱及至少一个芯片封装于第一基板。第三封装层位于第一基板远离硬板部的一侧,第三封装层将至少一个芯片封装于第一基板。第四封装层位于硬板部远离第一基板的一侧,第四封装层将多个第四架高柱及至少一个芯片封装于硬板部。第五封装层位于第三基板与第四基板之间,第五封装层将多个第六架高柱及至少一个芯片封装于第三基板、且将至少一个芯片封装于第四基板。第六封装层位于第四基板远离第三基板的一侧,第六封装层将至少一个芯片封装于第四基板。
在本实施例中,主控模组在硬板部的两侧、第一基板的两侧、第三基板远离硬板部的一侧、第四基板的两侧均排布器件,从而在垂直于硬板部的方向上堆叠七层器件,因此主控模组及无线耳机的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件包括多个第一架高柱,第二支撑件包括多个第四架高柱。主控模组还包括第一封装层、第二封装层、第四封装层以及第五封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部,且将至少一个芯片封装于第一基板。此时,第一封装层封装位于硬板部与第一基板之间的器件。第四封装层位于硬板部与第三基板之间,第四封装层将多个第四架高柱及至少一个芯片封装于硬板部,且将至少一个芯片封装于第三基板。第五封装层固定于第三基板远离硬板部的一侧,第五封装层将至少一个芯片封装于第三基板。
在本实施例中,主控模组在硬板部的两侧、第一基板的两侧以及第三基板的两侧均排布器件,从而在垂直于硬板部的方向上堆叠六层器件,因此主控模组及无线耳机的器件排 布密度较大、集成度较高。
一种可选的实施例中,第一支撑件为第一架高板,第一架高板为中空结构,至少一个芯片位于第一架高板内侧。其中,第一架高板为电路板结构,第一架高板可以通过组装方式固定于硬板部,也可以与硬板部一体成型。在本实施例中,主控模组通过第一架高板在第一基板与硬板部之间支撑出器件排布空间,使得主控模组能够集成至少两层器件,从而提高器件排布密度,主控模组及无线耳机的器件集成度较高。
一些实施例中,固定于硬板部的器件均位于硬板部朝向第一基板的一侧,且部分器件位于第一架高板内侧,部分器件位于第一架高板外侧。另一些实施例中,固定于硬板部的器件部分位于硬板部朝向第一基板的一侧、部分位于硬板部远离第一基板的一侧。
其中,主控模组还包括多个芯片匹配器件,多个芯片匹配器件中的至少一个芯片匹配器件固定于硬板部、至少一个芯片匹配器件固定于第一基板。
一种可选的实施例中,多个芯片中的至少一个芯片固定于硬板部远离第一基板的一侧、至少一个芯片固定于硬板部朝向第一基板的一侧、至少一个芯片固定于第一基板朝向硬板部的一侧、至少一个芯片固定于第一基板远离硬板部的一侧。也即,硬板部的两侧均排布器件,第一基板的两侧均排布器件,因此主控模组集成有四层器件,器件排布密度高,主控模组及无线耳机的器件集成度高。
其中,主控模组还包括第一封装层,第一封装层位于第一基板远离硬板部的一侧,且封装有至少一个芯片。第一封装层还可以封装有至少一个芯片匹配器件。第一封装层可以对固定于第一基板远离硬板部的一侧的器件进行全尺寸封装或者局部封装。
一种可选的实施例中,主控模组还包括第二基板和多个第三架高柱。第二基板位于第一基板远离硬板部的一侧,且与第一基板彼此堆叠地间隔设置。多个第三架高柱位于第二基板与第一基板之间、分别与第二基板和第一基板抵持。多个芯片中的至少一个芯片固定于第二基板。固定于第二基板的芯片通过多个第三架高柱、第一基板以及第一支撑件电连接硬板部。
主控模组还包括第一封装层和第二封装层。第一封装层位于第一基板与第二基板之间,用于封装第一基板与第二基板之间的器件。第二封装层位于第二基板远离第一基板的一侧,第二封装层可以对固定于第二基板远离第一基板的一侧的器件进行局部封装或全尺寸封装。
在本实施例中,硬板部的两侧、第一基板的两侧及第二基板的两侧均排布有器件,主控模组集成有六层器件,器件排布密度大,主控模组及无线耳机的器件集成度高。在其他实施例中,硬板部、第一基板或第二基板中的一者或两者以上也可以单侧排布器件。
一种可选的实施例中,主控模组还包括第二基板和第二架高板。第二基板位于硬板部远离第一基板的一侧,且与硬板部彼此间隔地堆叠设置。第二架高板位于第二基板与硬板部之间、分别与第二基板和硬板部抵持。多个芯片中的至少一个芯片固定于第二基板。固定于第二基板的芯片经第二架高板电连接硬板部。第二架高板为中空结构,至少一个芯片位于第二架高板内侧。
在本实施例中,主控模组通过第一架高板将第一基板固定于硬板部的一侧,通过第二架高板将第二基板固定于硬板部的另一侧,从而形成三层电路板的堆叠结构,器件可以灵 活排布于这三层电路板的单侧或双侧,形成至少三层器件的堆叠结构,因此主控模组及无线耳机的器件排布密度大、集成度高。
一种可选的实施例中,主控模组还包括第一封装层,第一封装层位于第二基板远离硬板部的一侧。第一封装层可以对固定于第二基板远离硬板部的一侧的器件进行局部封装或全尺寸封装。第一封装层用于保护其封装的器件,也能够在主控模组与无线耳机中的其他部件进行组装时提供支撑面或固定面,以保护主控模组中的器件。
一种可选的实施例中,耳塞部设有听筒模组,第一软板部连接听筒模组。耳柄部设有电池,第二软板部连接电池。多个芯片包括微控制单元芯片、电源管理芯片以及音频芯片,电源管理芯片及音频芯片均电连接微控制单元芯片。微控制单元芯片为无线耳机及主控模组的处理和控制中心。
听筒模组经第一软板部及硬板部电连接音频芯片。音频芯片用于将音频数据编码形成电信号。听筒模组用于将电信号转换成声音信号。电池经第二软板部及硬板部电连接电源管理芯片。电池用于为无线耳机供电。电源管理芯片用于管理电池的电量输入及电量输出。
一种可选的实施例中,无线耳机的多个功能模组还包括正极充电端子和负极充电端子。正极充电端子位于耳塞部。主控模组的软硬结合电路板还包括连接硬板部的第三软板部,第三软板部位于耳塞部。正极充电端子连接第三软板部,经第三软板部及硬板部连接电源管理芯片。负极充电端子位于耳柄部的底段。负极充电端子连接第二软板部,经第二软板部和硬板部连接电源管理芯片。
一种可选的实施例中,无线耳机的多个功能模组还包括光学传感模组。光学传感模组可以用做接近检测模组,用于检测无线耳机是否被安装到用户耳部。光学传感模组位于耳塞部,例如可以位于耳塞部远离耳柄部的位置处。光学传感模组可以通过侧部壳体的检测孔射出检测信号及接收反馈信号,以实现检测。光学传感模组连接第一软板部,经第一软板部和硬板部电连接至堆叠组件中的多个芯片。
一种可选的实施例中,无线耳机的多个功能模组还包括骨振动传感模组。骨振动传感模组用于实现声纹识别、语音识别接口、点两下启动无线耳机等功能。骨振动传感模组位于耳塞部,例如可以位于耳塞部朝向耳柄部的底段的位置处。主壳部可以设置对应的交互通孔,骨振动传感模组通过该交互通孔与用户进行交互。骨振动传感模组连接第一软板部,经第一软板部和硬板部连接至堆叠组件中的芯片。
一种可选的实施例中,无线耳机的多个功能模组还包括天线模组。天线模组包括天线支架、天线及馈电件。天线固定于天线支架,天线及天线支架位于耳柄部的顶段及连接段。馈电件位于耳柄部的连接段,馈电件固定于第二软板部、用于向天线馈电。示例性的,馈电件可以为弹片,馈电件焊接第二软板部。一些实施例中,多个芯片还包括射频芯片,射频芯片用于调制射频信号和解调射频信号。示例性的,射频信号工作于蓝牙频段。射频芯片电连接微控制单元芯片。天线经馈电件、第二软板部及硬板部电连接至射频芯片。其他一些实施例中,射频芯片还可以集成于微控制单元芯片中。
一种可选的实施例中,无线耳机的多个功能模组还包括第一麦克风模组,第一麦克风模组用于将声音信号转换成电信号。第一麦克风模组位于耳柄部的连接段。无线耳机外部的声音能够经第一进音孔进入无线耳机的内部,然后被第一麦克风模组接收。第一麦克风 模组连接第二软板部,经第二软板部和硬板部连接至堆叠组件中的芯片。
一种可选的实施例中,无线耳机的多个功能模组还包括第二麦克风模组,第二麦克风模组用于将声音信号转换成电信号。第二麦克风模组位于耳柄部的底段。无线耳机外部的声音能够经第二进音孔进入无线耳机的内部,然后被第二麦克风模组接收。第二麦克风模组连接第二软板部,经第二软板部和硬板部连接至堆叠组件中的芯片。
一种可选的实施例中,软硬结合电路板包括层叠设置的至少一层柔性介质层和至少两层第一导电层,相邻的两层第一导电层之间设有一层柔性介质层,至少一层柔性介质层和至少两层第一导电层形成第一软板部、硬板部的中间层以及第二软板部。第一软板部、硬板部的中间层以及第二软板部为一体的、连续的结构。示例性的,柔性介质层可采用聚酰亚胺材料,以使第一软板部和第二软板部的耐弯折性能较佳。
软硬结合电路板还包括层叠设置的至少两层硬质介质层和至少两层第二导电层,至少两层硬质介质层中的部分硬质介质层位于硬板部的中间层的一侧、另一部分硬质介质层位于硬板部的中间层的另一侧,至少两层第二导电层中的部分第二导电层位于硬板部的中间层的一侧、另一部分第二导电层位于硬板部的中间层的另一侧,位于硬板部的中间层的同一侧的相邻两层第二导电层之间设有一层硬质介质层,邻近硬板部的中间层的第二导电层与硬板部的中间层之间设有一层硬质介质层。示例性的,硬质介质层可以采用聚丙烯材料,以使硬板部具有足够的结构强度。
第二方面,本申请实施例还提供一种无线耳机。无线耳机具有耳柄部和连接耳柄部的耳塞部,无线耳机包括主控模组,主控模组包括第一基板、第二基板、软硬结合电路板以及多个芯片,软硬结合电路板包括硬板部及连接硬板部的第一软板部和第二软板部。第一基板和第二基板位于耳塞部,第一基板与第二基板彼此间隔地堆叠设置,硬板部为中空结构,硬板部固定于第一基板与第二基板之间,第一软板部位于耳塞部且一端连接硬板部,第二软板部的一端连接硬板部、另一端延伸至耳柄部。多个芯片中的至少一个芯片固定于第一基板,多个芯片中的至少一个芯片固定于第二基板,至少一个芯片位于硬板部内侧,固定于第一基板及第二基板的芯片电连接硬板部。
在本实施例中,软硬结合电路板的硬板部作为第一基板与第二基板之间的架高结构,使第一基板与第二基板之间形成间距,第一基板的一侧或两侧、以及第二基板的一侧或两侧上均可以排布器件,因此主控模组集成有堆叠设置的至少两层器件,从而具有较大的器件排布密度,主控模组及无线耳机的器件集成度高。
一种可选的实施例中,主控模组还包括第一封装层、第二封装层、第三封装层以及第四封装层。第一封装层位于第一基板朝向第二基板的一侧,第一封装层位于硬板部的内侧。第一封装层封装有至少一个芯片,还可以封装有至少一个芯片匹配器件。第二封装层位于第一基板远离第二基板的一侧,第二封装层封装有至少一个芯片,还可以封装有至少一个芯片匹配器件。第一基板远离第二基板的一侧上还可以固定有至少一个第一器件,第一器件为不宜塑封的器件,第一器件位于第二封装层的外侧。
第三封装层位于第二基板朝向第一基板的一侧,第三封装层位于硬板部的内侧。第三封装层封装有至少一个芯片,还可以封装有至少一个芯片匹配器件。第四封装层位于第二基板远离第一基板的一侧,第四封装层封装有至少一个芯片,还可以封装有至少一个芯片 匹配器件。第二基板远离第一基板的一侧上还可以固定有至少一个第二器件,第二器件为不宜塑封的器件,第二器件位于第四封装层的外侧。
一种可选的实施例中,主控模组还包括第三基板和多个第一架高柱。第三基板位于第一基板远离第二基板的一侧,第三基板与第一基板彼此间隔地堆叠设置,多个第一架高柱固定于第三基板与第一基板之间。第一基板的两侧、第二基板的两侧及第三基板的两侧均分布有至少一个芯片和至少一个芯片匹配器件。固定于第三基板的器件经多个第一架高柱及第一基板电连接硬板部。
主控模组还包括第一封装层、第二封装层、第三封装层、第四封装层以及第五封装层。第一封装层位于第一基板朝向第二基板的一侧,第一封装层位于硬板部的内侧,第一封装层封装有至少两个器件。第二封装层位于第一基板与第三基板之间,第二封装层封装多个第一架高柱以及位于第一基板与第三基板之间的器件。第三封装层位于第三基板远离第一基板的一侧,第三封装层封装有至少两个器件。第三基板远离第一基板的一侧还可以固定有至少一个第一器件,第一器件为不宜塑封的器件,第一器件位于第三封装层的外侧。
第四封装层位于第二基板朝向第一基板的一侧,第四封装层位于硬板部的内侧。第三封装层封装有至少两个器件。第五封装层位于第二基板远离第一基板的一侧,第五封装层封装有至少两个器件。第二基板远离第一基板的一侧上还可以固定有至少一个第二器件,第二器件为不宜塑封的器件,第二器件位于第五封装层的外侧。
在本实施例中,主控模组包括堆叠设置的三层电路板(第一基板、第二基板及第三基板),各电路板的两侧均能够排布器件,从而集成有六层器件,器件排布密度大,主控模组及无线耳机的器件集成度高。
一种可选的实施例中,耳塞部设有听筒模组,第一软板部连接听筒模组。耳柄部设有电池,第二软板部连接电池。多个芯片包括微控制单元芯片、电源管理芯片以及音频芯片,电源管理芯片及音频芯片均电连接微控制单元芯片。微控制单元芯片为无线耳机及主控模组的处理和控制中心。
听筒模组经第一软板部及硬板部电连接音频芯片。音频芯片用于将音频数据编码形成电信号。听筒模组用于将电信号转换成声音信号。电池经第二软板部及硬板部电连接电源管理芯片。电池用于为无线耳机供电。电源管理芯片用于管理电池的电量输入及电量输出。
第三方面,本申请实施例还提供一种主控模组。主控模组可以应用于电子设备。主控模组包括软硬结合电路板、第一基板、第一支撑件以及多个芯片。软硬结合电路板包括硬板部及连接硬板部的第一软板部和第二软板部。第一基板与硬板部彼此间隔地堆叠设置。示例性的,第一基板在硬板部的投影落入硬板部的范围内。第一支撑件位于第一基板与硬板部之间、分别与第一基板和硬板部抵持。多个芯片中的至少一个芯片固定于硬板部,多个芯片中的至少一个芯片固定于第一基板,固定于第一基板的芯片经第一支撑件电连接硬板部。主控模组的固定于硬板部及硬板部上方、硬板部下方的部件形成堆叠组件。也即,主控模组包括软硬结合电路板和堆叠组件,堆叠组件固定于硬板部,堆叠组件包括第一基板、第一支撑件及多个芯片。
在本实施例中,主控模组包括堆叠设置的第一基板和硬板部,且至少一个芯片固定于第一基板、至少一个芯片固定于硬板部,因此主控模组的堆叠组件能够形成多层器件堆叠 结构,主控模组的器件排布密度大、集成度高。
在本实施例中,由于固定于第一基板的芯片能够经第一支撑件电连接至硬板部,因此无需在第一基板与硬板部之间设置用于传输信号的柔性电路板,第一基板的芯片与硬板部之间的信号传输路径由第一支撑件实现,信号传输路径短,使得信号传输质量更佳。此外,本实施例的主控模组不再设置连接于第一基板与硬板部之间的柔性电路板,也能够避免因柔性电路板发生弯折、且弯折角度较大,而在弯折区造成断裂开路,导致产品失效或良率很低的问题。
一种可选的实施例中,主控模组还包括多个芯片匹配器件。多个芯片匹配器件中的至少一个芯片匹配器件固定于第一基板、至少一个芯片匹配器件固定于硬板部。固定于第一基板的芯片匹配器件经第一支撑件电连接硬板部。多个芯片匹配器件的排布位置可以随其对应的芯片进行排布。
一种可选的实施例中,第一支撑件包括多个第一架高柱,多个第一架高柱位于硬板部与第一基板之间且固定于硬板部。主控模组还包括第一封装层,第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部。此时,多个第一架高柱远离硬板部的一端端面相对第一封装层露出,第一基板可连接于第一架高柱的该端面。其中,第一封装层还将多个芯片匹配器件封装于硬板部。第一封装层能够保护其封装的器件,以使主控模组的可靠性较高、使用寿命较长。
在本实施例中,第一封装层直接将多个器件封装于硬板部,使得多个器件能够直接通过硬板部及第一软板部或第二软板部与外部的功能模组相连接,相较于传统封装层中器件需要先封装于一个承载基板,将承载基板焊接于电路板后才能与外部模组连接的方式,本实施例的连接方式更为直接、结构更为简单。
一种可选的实施例中,硬板部包括朝向第一基板的第一表面。第一表面包括第一封装区域及第一非封装区域,第一封装层位于第一封装区域,第一非封装区域位于第一封装区域周边。换言之,第一封装区域与硬板部的边缘之间具有一定间距。在本实施例中,第一非封装区域能够在第一封装层的成型工序中为模具提供支撑空间,避免因模具抵持第一软板部或第二软板部而导致软硬结合电路板产生破损,从而保证主控模组的生产良率。
一种可选的实施例中,主控模组还包括至少一个第一器件,至少一个第一器件固定于第一非封装区域。示例性的,第一器件为不宜进行塑封的器件。在本实施例中,硬板部的第一非封装区域既在第一封装层的成型过程中为模具提供抵持空间,还用于排布不宜封装的第一器件,因此主控模组复用了第一非封装区域的空间,提高了空间利用率。
一种可选的实施例中,第一基板焊接多个第一架高柱。主控模组还包括第二封装层,第二封装层位于第一基板远离硬板部的一侧,第二封装层将至少一个芯片封装于第一基板。其中,第二封装层还可以将至少一个芯片匹配器件封装于第一基板。第二封装层能够保护其封装的器件,以使主控模组的可靠性较高、使用寿命较长。
一种可选的实施例中,第一支撑件还包括多个第二架高柱,多个第二架高柱固定于第一基板朝向硬板部的一侧,多个第二架高柱与多个第一架高柱一一对应地焊接。主控模组还包括第二封装层及第三封装层,第二封装层位于第一基板远离硬板部的一侧,第二封装层将至少一个芯片封装于第一基板,第三封装层位于第一基板朝向硬板部的一侧,第三封 装层将多个第二架高柱及至少一个芯片封装于第一基板。
在本实施例中,由于第一支撑件包括堆叠设置的第一架高柱和第二架高柱,第一支撑件具有足够的高度,因此第一基板与硬板部之间的间距较大,第一基板与硬板部之间能够排布两层器件,使得主控模组在垂直于硬板部方向上集成有三层器件,主控模组的器件排布密度更大,集成度更高。此外,主控模组的多个芯片于三层器件的排布方案也更为灵活和多样。
一种可选的实施例中,主控模组还包括至少一个第二器件,至少一个第二器件固定于第一基板远离硬板部的一侧,且位于第二封装层的外侧。第二器件为不宜进行塑封的器件,包括但不限于带有空腔的声表面波滤波器、带有空腔的晶振、压力敏感的器件等。
在本实施例中,主控模组中的不宜塑封的器件可以依据功能选择及芯片的排布位置,灵活排布于硬板部和/或第一基板,提高了主控模组的器件排布的灵活性和多样化。
一种可选的实施例中,主控模组还包括第二基板、第二封装层、第三封装层以及多个第三架高柱。第一基板焊接多个第一架高柱,固定于第一基板的芯片位于第一基板远离硬板部的一侧,第二基板位于第一基板远离硬板部的一侧,第二基板与第一基板彼此间隔地堆叠设置,多个第三架高柱位于第二基板与第一基板之间、分别与第二基板和第一基板抵持。第二封装层位于第二基板与第一基板之间,多个第三架高柱和固定于第一基板的芯片封装于第二封装层中。多个芯片中的至少一个芯片封装于第二封装层中、并固定于第二基板。第三封装层位于第二基板远离第一基板的一侧,多个芯片中的至少一个芯片封装于第三封装层中、并固定于第二基板。固定于第二基板的芯片经多个第三架高柱、第一基板及多个第一架高柱电连接硬板部。
在本实施例中,主控模组在硬板部朝向第一基板的一侧、第一基板远离硬板部的一侧、第二基板朝向第一基板的一侧以及第二基板远离第一基板的一侧均排布器件,从而在垂直于硬板部的方向上堆叠有四层器件,提高了器件排布密度和集成度。
一种可选的实施例中,第一封装层接触第一基板。主控模组还包括第二封装层,第二封装层固定于第一基板远离硬板部的一侧。固定于第一基板的芯片部分封装于第一封装层、部分封装于第二封装层。
在本实施例中,主控模组在硬板部朝向第一基板的一侧、第一基板朝向硬板部的一侧以及第一基板远离硬板部的一侧均排布器件,从而在垂直于硬板部的方向上堆叠有三层器件,因此主控模组的器件排布密度较大、集成度较高。
一种可选的实施例中,主控模组还包括第四封装层,第四封装层固定于硬板部远离第一基板的一侧,固定于硬板部的芯片中的至少一个芯片封装于第四封装层中。
在本实施例中,主控模组在硬板部远离第一基板的一侧、硬板部朝向第一基板的一侧以及第一基板远离硬板部的一侧均排布器件,从而在垂直于硬板部的方向上堆叠有三层器件,因此主控模组的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件包括堆叠设置的多个第一架高柱和多个第二架高柱,多个第一架高柱固定于硬板部,多个第二架高柱固定于第一基板,多个第二架高柱与多个第一架高柱一一对应地焊接。主控模组还包括第一封装层、第二封装层、第三封装层以及第四封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至 少一个芯片封装于硬板部。第二封装层位于第一基板朝向硬板部的一侧,第二封装层将多个第二架高柱及至少一个芯片封装于第一基板。第三封装层位于第一基板远离硬板部的一侧,第三封装层将至少一个芯片封装于第一基板。第四封装层位于硬板部远离第一基板的一侧,第四封装层将至少一个芯片封装于硬板部。
在本实施例中,主控模组在硬板部的两侧以及第一基板的两侧均排布器件,从而在垂直于硬板部的方向上堆叠有四层器件,因此主控模组的器件排布密度较大、集成度较高。
一种可选的实施例中,主控模组还包括第三基板和第二支撑件。第三基板位于硬板部远离第一基板的一侧,且与硬板部彼此间隔地堆叠设置,第二支撑件位于第三基板与硬板部之间、分别与第三基板和硬板部抵持,多个芯片中的至少一个芯片固定于第三基板,固定于第三基板的芯片经第二支撑件电连接硬板部。在本实施例中,硬板部的两侧均可以堆叠一层或多层器件,进一步提高了主控模组的器件集成度。
一种可选的实施例中,第一支撑件包括堆叠设置的多个第一架高柱和多个第二架高柱,多个第一架高柱固定于硬板部,多个第二架高柱固定于第一基板,多个第二架高柱与多个第一架高柱一一对应地焊接。第二支撑件包括多个第四架高柱,多个第四架高柱固定于硬板部。第三基板焊接多个第四架高柱,固定于第三基板的芯片位于第三基板远离硬板部的一侧。
主控模组还包括第一封装层、第二封装层、第三封装层、第四封装层以及第五封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部。第二封装层位于第一基板朝向硬板部的一侧,第二封装层将多个第二架高柱及至少一个芯片封装于第一基板。第三封装层位于第一基板远离硬板部的一侧,第三封装层将至少一个芯片封装于第一基板。第四封装层位于硬板部远离第一基板的一侧,第四封装层将多个第四架高柱及至少一个芯片封装于硬板部。第五封装层位于第三基板远离硬板部的一侧,第五封装层将至少一个芯片封装于第三基板。
在本实施例中,主控模组在硬板部的两侧、第一基板的两侧以及第三基板远离硬板部的一侧均排布器件,从而在垂直于硬板部的方向上堆叠有五层器件,因此主控模组的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件包括堆叠设置的多个第一架高柱和多个第二架高柱,多个第一架高柱固定于硬板部,多个第二架高柱固定于第一基板,多个第二架高柱与多个第一架高柱一一对应地焊接。第二支撑件包括堆叠设置的多个第四架高柱和多个第五架高柱,多个第四架高柱固定于硬板部,多个第五架高柱固定于第三基板,多个第五架高柱与多个第四架高柱一一对应地焊接。
主控模组还包括第一封装层、第二封装层、第三封装层、第四封装层、第五封装层以及第六封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部。第二封装层位于第一基板朝向硬板部的一侧,第二封装层将多个第二架高柱及至少一个芯片封装于第一基板。第三封装层位于第一基板远离硬板部的一侧,第三封装层将至少一个芯片封装于第一基板。第四封装层位于硬板部远离第一基板的一侧,第四封装层将多个第四架高柱及至少一个芯片封装于硬板部。第五封装层位于第三基板朝向硬板部的一侧,第五封装层将多个第五架高柱及至少一个芯片封装于第三基板。 第六封装层位于第三基板远离硬板部的一侧,第六封装层将至少一个芯片封装于第三基板。
在本实施例中,主控模组在硬板部的两侧、第一基板的两侧以及第三基板的两侧均排布器件,从而在垂直于硬板部的方向上堆叠有六层器件,因此主控模组的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件包括堆叠设置的多个第一架高柱和多个第二架高柱,多个第一架高柱固定于硬板部,多个第二架高柱固定于第一基板,多个第二架高柱与多个第一架高柱一一对应地焊接。第二支撑件包括堆叠设置的多个第四架高柱,多个第四架高柱固定于硬板部。第三基板焊接多个第四架高柱。
主控模组还包括第四基板以及多个第六架高柱。第四基板位于第三基板远离硬板部的一侧,且与第三基板彼此间隔地堆叠设置,多个第六架高柱位于第四基板与第三基板之间、并支撑第四基板与第三基板。多个芯片中的至少一个芯片固定于第四基板。固定于第四基板的芯片经第六架高柱、第三基板及第二支撑件电连接硬板部。
主控模组还包括第一封装层、第二封装层、第三封装层、第四封装层、第五封装层以及第六封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部。第二封装层位于第一基板朝向硬板部的一侧,第二封装层将多个第二架高柱及至少一个芯片封装于第一基板。第三封装层位于第一基板远离硬板部的一侧,第三封装层将至少一个芯片封装于第一基板。第四封装层位于硬板部远离第一基板的一侧,第四封装层将多个第四架高柱及至少一个芯片封装于硬板部。第五封装层位于第三基板与第四基板之间,第五封装层将多个第六架高柱及至少一个芯片封装于第三基板、且将至少一个芯片封装于第四基板。第六封装层位于第四基板远离第三基板的一侧,第六封装层将至少一个芯片封装于第四基板。
在本实施例中,主控模组在硬板部的两侧、第一基板的两侧、第三基板远离硬板部的一侧、第四基板的两侧均排布器件,从而在垂直于硬板部的方向上堆叠七层器件,因此主控模组的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件包括多个第一架高柱,第二支撑件包括多个第四架高柱。主控模组还包括第一封装层、第二封装层、第四封装层以及第五封装层。第一封装层位于硬板部与第一基板之间,第一封装层将多个第一架高柱及至少一个芯片封装于硬板部,且将至少一个芯片封装于第一基板。此时,第一封装层封装位于硬板部与第一基板之间的器件。第四封装层位于硬板部与第三基板之间,第四封装层将多个第四架高柱及至少一个芯片封装于硬板部,且将至少一个芯片封装于第三基板。第五封装层固定于第三基板远离硬板部的一侧,第五封装层将至少一个芯片封装于第三基板。
在本实施例中,主控模组在硬板部的两侧、第一基板的两侧以及第三基板的两侧均排布器件,从而在垂直于硬板部的方向上堆叠六层器件,因此主控模组的器件排布密度较大、集成度较高。
一种可选的实施例中,第一支撑件为第一架高板,第一架高板为中空结构,至少一个芯片位于第一架高板内侧。其中,第一架高板为电路板结构,第一架高板可以通过组装方式固定于硬板部,也可以与硬板部一体成型。在本实施例中,主控模组通过第一架高板在第一基板与硬板部之间支撑出器件排布空间,使得主控模组能够集成至少两层器件,从而 提高器件排布密度,主控模组的器件集成度较高。
一些实施例中,固定于硬板部的器件均位于硬板部朝向第一基板的一侧,且部分器件位于第一架高板内侧,部分器件位于第一架高板外侧。另一些实施例中,固定于硬板部的器件部分位于硬板部朝向第一基板的一侧、部分位于硬板部远离第一基板的一侧。
其中,主控模组还包括多个芯片匹配器件,多个芯片匹配器件中的至少一个芯片匹配器件固定于硬板部、至少一个芯片匹配器件固定于第一基板。
一种可选的实施例中,多个芯片中的至少一个芯片固定于硬板部远离第一基板的一侧、至少一个芯片固定于硬板部朝向第一基板的一侧、至少一个芯片固定于第一基板朝向硬板部的一侧、至少一个芯片固定于第一基板远离硬板部的一侧。也即,硬板部的两侧均排布器件,第一基板的两侧均排布器件,因此主控模组集成有四层器件,器件排布密度高,主控模组的器件集成度高。
其中,主控模组还包括第一封装层,第一封装层位于第一基板远离硬板部的一侧,且封装有至少一个芯片。第一封装层还可以封装有至少一个芯片匹配器件。第一封装层可以对固定于第一基板远离硬板部的一侧的器件进行全尺寸封装或者局部封装。
一种可选的实施例中,主控模组还包括第二基板和多个第三架高柱。第二基板位于第一基板远离硬板部的一侧,且与第一基板彼此堆叠地间隔设置。多个第三架高柱位于第二基板与第一基板之间、分别与第二基板和第一基板抵持。多个芯片中的至少一个芯片固定于第二基板。固定于第二基板的芯片通过多个第三架高柱、第一基板以及第一支撑件电连接硬板部。
主控模组还包括第一封装层和第二封装层。第一封装层位于第一基板与第二基板之间,用于封装第一基板与第二基板之间的器件。第二封装层位于第二基板远离第一基板的一侧,第二封装层可以对固定于第二基板远离第一基板的一侧的器件进行局部封装或全尺寸封装。
在本实施例中,硬板部的两侧、第一基板的两侧及第二基板的两侧均排布有器件,主控模组集成有六层器件,器件排布密度大,主控模组的器件集成度高。在其他实施例中,硬板部、第一基板或第二基板中的一者或两者以上也可以单侧排布器件。
一种可选的实施例中,主控模组还包括第二基板和第二架高板。第二基板位于硬板部远离第一基板的一侧,且与硬板部彼此间隔地堆叠设置。第二架高板位于第二基板与硬板部之间、分别与第二基板和硬板部抵持。多个芯片中的至少一个芯片固定于第二基板。固定于第二基板的芯片经第二架高板电连接硬板部。第二架高板为中空结构,至少一个芯片位于第二架高板内侧。
在本实施例中,主控模组通过第一架高板将第一基板固定于硬板部的一侧,通过第二架高板将第二基板固定于硬板部的另一侧,从而形成三层电路板的堆叠结构,器件可以灵活排布于这三层电路板的单侧或双侧,形成至少三层器件的堆叠结构,因此主控模组的器件排布密度大、集成度高。
一种可选的实施例中,软硬结合电路板包括层叠设置的至少一层柔性介质层和至少两层第一导电层,相邻的两层第一导电层之间设有一层柔性介质层,至少一层柔性介质层和至少两层第一导电层形成第一软板部、硬板部的中间层以及第二软板部。第一软板部、硬 板部的中间层以及第二软板部为一体的、连续的结构。示例性的,柔性介质层可采用聚酰亚胺材料,以使第一软板部和第二软板部的耐弯折性能较佳。
软硬结合电路板还包括层叠设置的至少两层硬质介质层和至少两层第二导电层,至少两层硬质介质层中的部分硬质介质层位于硬板部的中间层的一侧、另一部分硬质介质层位于硬板部的中间层的另一侧,至少两层第二导电层中的部分第二导电层位于硬板部的中间层的一侧、另一部分第二导电层位于硬板部的中间层的另一侧,位于硬板部的中间层的同一侧的相邻两层第二导电层之间设有一层硬质介质层,邻近硬板部的中间层的第二导电层与硬板部的中间层之间设有一层硬质介质层。示例性的,硬质介质层可以采用聚丙烯材料,以使硬板部具有足够的结构强度。
第四方面,本申请实施例还提供一种主控模组。主控模组包括第一基板、第二基板、软硬结合电路板以及多个芯片,软硬结合电路板包括硬板部及连接硬板部的第一软板部和第二软板部。第一基板和第二基板位于耳塞部,第一基板与第二基板彼此间隔地堆叠设置,硬板部为中空结构,硬板部固定于第一基板与第二基板之间,第一软板部位于耳塞部且一端连接硬板部,第二软板部的一端连接硬板部、另一端延伸至耳柄部。多个芯片中的至少一个芯片固定于第一基板,多个芯片中的至少一个芯片固定于第二基板,至少一个芯片位于硬板部内侧,固定于第一基板及第二基板的芯片电连接硬板部。
在本实施例中,软硬结合电路板的硬板部作为第一基板与第二基板之间的架高结构,使第一基板与第二基板之间形成间距,第一基板的一侧或两侧、以及第二基板的一侧或两侧上均可以排布器件,因此主控模组集成有堆叠设置的至少两层器件,从而具有较大的器件排布密度,主控模组的器件集成度高。
一种可选的实施例中,主控模组还包括第一封装层、第二封装层、第三封装层以及第四封装层。第一封装层位于第一基板朝向第二基板的一侧,第一封装层位于硬板部的内侧。第一封装层封装有至少一个芯片,还可以封装有至少一个芯片匹配器件。第二封装层位于第一基板远离第二基板的一侧,第二封装层封装有至少一个芯片,还可以封装有至少一个芯片匹配器件。第一基板远离第二基板的一侧上还可以固定有至少一个第一器件,第一器件为不宜塑封的器件,第一器件位于第二封装层的外侧。
第三封装层位于第二基板朝向第一基板的一侧,第三封装层位于硬板部的内侧。第三封装层封装有至少一个芯片,还可以封装有至少一个芯片匹配器件。第四封装层位于第二基板远离第一基板的一侧,第四封装层封装有至少一个芯片,还可以封装有至少一个芯片匹配器件。第二基板远离第一基板的一侧上还可以固定有至少一个第二器件,第二器件为不宜塑封的器件,第二器件位于第四封装层的外侧。
一种可选的实施例中,主控模组还包括第三基板和多个第一架高柱。第三基板位于第一基板远离第二基板的一侧,第三基板与第一基板彼此间隔地堆叠设置,多个第一架高柱固定于第三基板与第一基板之间。第一基板的两侧、第二基板的两侧及第三基板的两侧均分布有至少一个芯片和至少一个芯片匹配器件。固定于第三基板的器件经多个第一架高柱及第一基板电连接硬板部。
主控模组还包括第一封装层、第二封装层、第三封装层、第四封装层以及第五封装层。第一封装层位于第一基板朝向第二基板的一侧,第一封装层位于硬板部的内侧,第一封装 层封装有至少两个器件。第二封装层位于第一基板与第三基板之间,第二封装层封装多个第一架高柱以及位于第一基板与第三基板之间的器件。第三封装层位于第三基板远离第一基板的一侧,第三封装层封装有至少两个器件。第三基板远离第一基板的一侧还可以固定有至少一个第一器件,第一器件为不宜塑封的器件,第一器件位于第三封装层的外侧。
第四封装层位于第二基板朝向第一基板的一侧,第四封装层位于硬板部的内侧。第三封装层封装有至少两个器件。第五封装层位于第二基板远离第一基板的一侧,第五封装层封装有至少两个器件。第二基板远离第一基板的一侧上还可以固定有至少一个第二器件,第二器件为不宜塑封的器件,第二器件位于第五封装层的外侧。
在本实施例中,主控模组包括堆叠设置的三层电路板(第一基板、第二基板及第三基板),各电路板的两侧均能够排布器件,从而集成有六层器件,器件排布密度大,主控模组的器件集成度高。
附图说明
图1是本申请实施例提供的一种无线耳机的结构示意图;
图2是图1所示耳机本体的结构示意图;
图3是图2所示耳机本体的部分分解示意图;
图4是图2所示耳机本体的内部结构示意图;
图5是图3所示主控模组在一些实施例中的展开的结构示意图;
图6是图3所示主控模组在另一些实施例中的展开的结构示意图;
图7是图3所示主控模组的软硬结合电路板的内部结构示意图;
图8是图2所示主控模组在第一实施例中的结构示意图;
图9是图8所示主控模组的部分结构的俯视图;
图10是图8所示主控模组在制作过程中的结构示意图一;
图11是图8所示主控模组在制作过程中的结构示意图二;
图12是图8所示主控模组在制作过程中的结构示意图三;
图13是图2所示主控模组在第二实施例中的结构示意图;
图14是图2所示主控模组在第三实施例中的结构示意图;
图15是图2所示主控模组在第四实施例中的结构示意图;
图16是图2所示主控模组在第五实施例中的结构示意图;
图17是图16所示主控模组在制作过程中的结构示意图一;
图18是图16所示主控模组在制作过程中的结构示意图二;
图19是图16所示主控模组在制作过程中的结构示意图三;
图20是图2所示主控模组在第六实施例中的结构示意图;
图21是图2所示主控模组在第七实施例中的结构示意图;
图22是图2所示主控模组在第八实施例中的结构示意图;
图23是图2所示主控模组在第九实施例中的结构示意图;
图24是图2所示主控模组在第十实施例中的结构示意图;
图25是图2所示主控模组在第十一实施例中的结构示意图;
图26是图2所示主控模组在第十二实施例中的结构示意图;
图27是图2所示主控模组在第十三实施例中的结构示意图;
图28是图2所示主控模组在第十四实施例中的结构示意图;
图29是图2所示主控模组在第十五实施例中的结构示意图;
图30是图2所示主控模组在第十六实施例中的结构示意图;
图31是图2所示主控模组在第十七实施例中的结构示意图;
图32是图2所示主控模组在第十八实施例中的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请以下各个实施例进行描述。
本申请实施例提供一种无线耳机,无线耳机可以无线连接(例如蓝牙连接)手机、笔记本电脑、平板、智能手表等电子设备,以与电子设备配合使用,用于处理电子设备的媒体、通话等音频业务,或者处理其他的一些数据业务。例如,该音频业务可以包括为用户播放音乐、录音、视频文件中的声音、游戏中的背景音乐、来电提示音等媒体业务;该音频业务还可以包括在电话、微信语音消息、音频通话、视频通话、游戏、语音助手等通话业务场景下,为用户播放对端的语音数据,或采集用户的语音数据发送给对端等。
请参阅图1,图1是本申请实施例提供的一种无线耳机1000的结构示意图。无线耳机1000可以为真无线立体声(true wireless stereo,TWS)耳机。无线耳机1000可以包括两个耳机本体100,两个耳机本体100能够分别作为左耳耳机以及右耳耳机,其中,左耳耳机能够配合用户的左耳使用,右耳耳机能够配合用户的右耳使用。其中,无线耳机1000可以为入耳式耳机或者半入耳式耳机。本实施例中,以无线耳机1000为半入耳式耳机为例进行说明。
可以理解的是,本申请的其它一些实施例中,无线耳机1000可以为其它类型的无线耳机,例如头戴式无线耳机或颈挂式无线耳机等。本申请的其它一些实施例中,无线耳机1000可以仅包括有一个耳机本体100。
一些实施例中,如图1所示,无线耳机1000还可以包括电池盒200。电池盒200包括盒体2001以及活动连接盒体2001的盒盖2002。示例性的,盒盖2002可以转动连接盒体2001,或者可拆卸地扣合连接盒体2001。电池盒200内形成收纳空间2003,耳机本体100可收容于收纳空间2003中。电池盒200内设有充电端子(图中未示出),充电端子接触耳机本体100的充电端子(图中未示出)时,可以为耳机本体100进行充电。电池盒200的充电端子可以为弹簧针(pogo pin)、弹片、导电块、导电贴片、导电片、插针、插头、接触垫、插孔或插座等,本申请实施例对电池盒200的充电端子的具体类型不做严格限定。
请参阅图2,图2是图1所示耳机本体100的结构示意图。耳机本体100具有耳柄部1001和连接耳柄部1001的耳塞部1002。耳塞部1002用于部分嵌入用户耳部。耳柄部1001用于接触用户耳部。用户佩戴耳机本体100时,耳塞部1002部分嵌入用户耳部,耳柄部1001位于用户耳部外侧并接触用户耳部。示例性的,耳柄部1001包括与耳塞部1002相接的连接段1003、及位于连接段1003两侧的顶段1004和底段1005。其他一些实施例中,耳柄部1001也可以不包括顶段1004,也即耳柄部1001包括连接段1003和底段1005。
请一并参阅图2和图3,图3是图2所示耳机本体100的部分分解示意图。耳机本体100包括外壳10。外壳10用于收容耳机本体100的其他部件,以固定并保护其他部件。外 壳10包括主壳体101、底部壳体102以及侧部壳体103。主壳体101部分位于耳机本体100的耳柄部1001、部分位于耳机本体100的耳塞部1002。主壳体101于耳机本体100的耳柄部1001的底段1005处形成第一开口1011,于耳机本体100的耳塞部1002处形成第二开口1012。耳机本体100的其他部件可以自第一开口1011或第二开口1012装入主壳体101内部。底部壳体102位于耳机本体100的耳柄部1001的底段1005并固定连接主壳体101,底部壳体102安装于第一开口1011。侧部壳体103位于耳机本体100的耳塞部1002并固定连接主壳体101,侧部壳体103安装于第二开口1012。
一些实施例中,底部壳体102与主壳体101之间的连接为可拆卸连接(例如扣合连接、螺纹连接等),以便于耳机本体100后续进行维修或维护。其他一些实施例中,底部壳体102与主壳体101之间的连接也可以为不可拆卸连接(例如胶接),以降低底部壳体102意外脱落的风险,使得耳机本体100的可靠性更高。
一些实施例中,侧部壳体103与主壳体101之间的连接为可拆卸连接(例如扣合连接、螺纹连接等),以便于耳机本体100后续进行维修或维护。其他一些实施例中,侧部壳体103与主壳体101之间的连接也可以为不可拆卸连接(例如胶接),以降低侧部壳体103意外脱落的风险,使得耳机本体100的可靠性更高。
其中,侧部壳体103设有至少一个出音孔1031,使得外壳10内部的声音能够经出音孔1031传输至外壳10外部。本申请中,“至少一个”包括“一个”和“两个以上”。一些实施例中,侧部壳体103还可以设有至少一个检测孔1032,位于外壳10内部的某些检测模组的检测信号可以经检测孔1032传输至外壳10外部,也可以经检测孔1032接收外壳10外部的反馈信号。一些实施例中,主壳体101位于耳柄部1001的连接段1003的部分设有至少一个第一进音孔1013,使得外壳10外部的声音能够经第一进音孔1013传输至外壳10内部。一些实施例中,底部壳体102设有至少一个第二进音孔1021,使得外壳10外部的声音能够经第二进音孔1021传输至外壳10内部。本申请实施例不对出音孔1031、检测孔1032、第一进音孔1013、第二进音孔1021的形状、位置、数量等作严格限定。
请一并参阅图3和图4,图4是图2所示耳机本体100的内部结构示意图。
耳机本体100包括主控模组20。主控模组20收容于外壳10内部。主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13,硬板部11位于耳塞部1002,第一软板部12位于耳塞部1002且一端连接硬板部11,第二软板部13的一端连接硬板部11、另一端延伸至耳柄部1001。堆叠组件2固定于硬板部11。硬板部11的垂直方向可以为耳塞部1002的内侧空间中尺寸较大的方向。堆叠组件2在垂直于硬板部11的方向上堆叠有多层器件(图中未示出),以提高器件排布密度。示例性的,堆叠组件2包括多个芯片(图中未示出)及多个芯片匹配器件(图中未示出)。其中,芯片匹配器件包括电容、电阻或电感中的一者或两者以上。堆叠组件2还可以包括基板、架高柱、架高板、封装层中的一者或两者以上。本申请中,“多个”为“两个以上”,“以上”包括本数及大于本数的数值。
耳机本体100还包括多个功能模组。多个功能模组中的至少一个功能模组位于耳塞部1002,多个功能模组中的至少一个功能模组位于耳柄部1001。堆叠组件2中的部分器件通过硬板部11及第一软板部12电连接至位于耳塞部1002的功能模组,堆叠组件2中的部分 器件通过硬板部11及第二软板部13电连接至位于耳柄部1001的功能模组。
本实施例中,由于主控模组20的堆叠组件2中的器件可以通过软硬结合电路板1电连接至耳机本体100的多个功能模组,堆叠组件2能够堆叠多层器件,因此耳机本体100的芯片及芯片匹配器件可以全部集成或大部分集成于堆叠组件2中,以将耳机本体100的控制系统完整地整合于堆叠组件2中,从而将传统的无线耳机1000中负责承载控制系统器件的多块副电路板省去,提高了主控模组20和耳机本体100的器件集成度。
此外,在垂直于硬板部11的方向上堆叠有多层器件的堆叠组件2的厚度尺寸较大。由于堆叠组件2固定于硬板部11,硬板部11位于耳塞部1002,因此堆叠组件2位于耳塞部1002,堆叠组件2的安装难度较小,且堆叠组件2能够充分利用耳塞部1002的内腔空间,从而提高耳机本体100的空间利用率。一些实施例中,硬板部11及堆叠组件2的外轮廓形状可以与耳塞部1002内腔空间的形状相适配,例如采用圆形或近似圆形的外轮廓,从而进一步提高耳机本体100的空间利用率。
一些实施例中,如图3和图4所示,耳机本体100的功能模组包括听筒模组30及电池40。堆叠组件2的多个芯片(图中未示出)包括微控制单元(microcontroller unit,MCU)芯片、电源管理芯片以及音频芯片,电源管理芯片及音频芯片均电连接微控制单元芯片。微控制单元芯片为耳机本体100及主控模组20的处理和控制中心。
听筒模组30设于耳塞部1002,第一软板部12连接听筒模组30。听筒模组30经第一软板部12及硬板部11电连接堆叠组件2中的音频芯片。音频芯片用于将音频数据编码形成电信号。听筒模组30用于将电信号转换成声音信号。其中,声音信号可以通过侧部壳体103的出音孔1031传输至耳机本体100的外侧。
电池40设于耳柄部1001,第二软板部13连接电池40。电池40经第二软板部13及硬板部11电连接堆叠组件2中的电源管理芯片。电池40用于为耳机本体100供电。电源管理芯片用于管理电池40的电量输入及电量输出。
其中,微控制单元芯片也称为单片机微型计算机或者单片机。示例性的,微控制单元芯片是把中央处理器(central process unit,CPU)的频率与规格做适当缩减,并集成内存(memory)、计数器(timer)、通用串行总线(universal serial bus,USB)、模数转换器(analog to digital converter)、通用异步收发传输器(universal asynchronous receiver/transmitter,UART)、可编程逻辑控制器(programmable logic controller,PLC)、直接内存存取(direct memory access,DMA)等单元,形成芯片级的计算机。其他一些实施例中,微控制单元芯片也可以包括更少或更多的单元。
其中,电源管理芯片可以包括充电电路、压降调节电路、保护电路、电量测量电路等。充电电路可以接收外部的充电输入。压降调节电路可以将充电电路输入的电信号变压后输出给电池40、以完成对电池40充电,还可以将电池40输入的电信号变压后输出至主控模组20以及其它的功能模组,以为主控模组20内的器件以及耳机本体100的功能模组供电。保护电路可以用于防止电池40过充、过放、短路或过流等。另外,电源管理单元还可以用于监测电池40的电池容量、电池循环次数,电池健康状态(漏电,阻抗)等参数。其他一些实施例中,电源管理芯片也可以包括更少或更多的电路。
一些实施例中,如图3和图4所示,耳机本体100的多个功能模组还包括正极充电端 子401和负极充电端子402。正极充电端子401位于耳塞部1002。示例性的,主壳体101位于耳塞部1002且朝向耳柄部1001的底段1005的位置处设有通孔(图中未示出),正极充电端子401通过该通孔暴露在耳柄部1001的外侧。主控模组20的软硬结合电路板1还包括连接硬板部11的第三软板部14,第三软板部14位于耳塞部1002。正极充电端子401连接第三软板部14,经第三软板部14及硬板部11连接堆叠组件2中的电源管理芯片。负极充电端子402位于耳柄部1001的底段1005。示例性的,底部壳体102采用导电材料,负极充电端子402接触底部壳体102。其他一些实施例中,底部壳体102也可以采用非导电材料,并设有连通孔,负极充电端子402固定于底部壳体102并通过该连通孔暴露在耳柄本体外侧。负极充电端子402连接第二软板部13,经第二软板部13和硬板部11连接堆叠组件2中的电源管理芯片。耳机本体100收纳于电池盒200(参阅图1)时,正极充电端子401和负极充电端子402分别与电池盒200中的两个充电端子连接,电池盒200对耳机本体100进行充电。其他一些实施例中,正极充电端子401也可以位于耳柄部1001的底段1005,此时,正极充电端子401连接第二软板部13,通过第二软板部13及硬板部11电连接至堆叠组件2中的电源管理芯片。
其中,正极充电端子401可以为弹簧针(pogo pin)、弹片、导电块、导电贴片、导电片、插针、插头、接触垫、插孔或插座等,本申请实施例对正极充电端子401的具体类型不做严格限定。负极充电端子402可以为弹簧针(pogo pin)、弹片、导电块、导电贴片、导电片、插针、插头、接触垫、插孔或插座等,本申请实施例对负极充电端子402的具体类型不做严格限定。负极充电端子402的类型可以与正极充电端子401的类型相同或相似。正极充电端子401及负极充电端子402的类型与充电盒的充电端子的类型相适配。
一些实施例中,如图3和图4所示,耳机本体100的多个功能模组还包括光学传感模组50。光学传感模组50(optical sensor)可以用做接近检测模组,用于检测耳机本体100是否被安装到用户耳部。光学传感模组50位于耳塞部1002,例如可以位于耳塞部1002远离耳柄部1001的位置处、靠近侧部壳体103放置。光学传感模组50可以通过侧部壳体103的检测孔1032(参阅图2)射出检测信号及接收反馈信号,以实现检测。光学传感模组50连接第一软板部12,经第一软板部12和硬板部11电连接至堆叠组件2中的多个芯片。
一些实施例中,如图3和图4所示,耳机本体100的多个功能模组还包括骨振动传感模组(bone vibration sensor)60。骨振动传感模组60用于实现声纹识别、语音识别接口(speech interpretation&recognition interface,SIRI)、点两下启动耳机本体100等功能。骨振动传感模组60位于耳塞部1002,例如可以位于耳塞部1002朝向耳柄部1001的底段1005的位置处。主壳体101可以设置对应的交互通孔1015,骨振动传感模组60通过该交互通孔1015与用户进行交互。骨振动传感模组60连接第一软板部12,经第一软板部12和硬板部11连接至堆叠组件2中的芯片。
一些实施例中,如图3和图4所示,耳机本体100的多个功能模组还包括天线模组70。天线模组70包括天线支架701、天线702及馈电件703。天线702固定于天线支架701,天线702及天线支架701位于耳柄部1001的顶段1004及连接段1003。馈电件703位于耳柄部1001的连接段1003,馈电件703固定于第二软板部13、用于向天线702馈电。示例 性的,馈电件703可以为弹片,馈电件703焊接第二软板部13。一些实施例中,堆叠组件2的多个芯片还包括射频芯片,射频芯片用于调制射频信号和解调射频信号。示例性的,射频信号工作于蓝牙频段。射频芯片电连接微控制单元芯片。天线702经馈电件703、第二软板部13及硬板部11电连接至射频芯片。其他一些实施例中,射频芯片还可以集成于微控制单元芯片中。
可以理解的是,在其他一些实施例中,当耳柄部1001不包括顶段1004时,天线模组70可以设于耳塞部1002、或耳柄部1001的连接段1003或底段1005。
一些实施例中,如图3和图4所示,耳机本体100的多个功能模组还包括第一麦克风模组80,第一麦克风模组80用于将声音信号转换成电信号。第一麦克风模组80位于耳柄部1001的连接段1003。耳机本体100外部的声音能够经第一进音孔1013进入耳机本体100的内部,然后被第一麦克风模组80接收。第一麦克风模组80连接第二软板部13,经第二软板部13和硬板部11连接至堆叠组件2中的芯片。
一些实施例中,如图3和图4所示,耳机本体100的多个功能模组还包括第二麦克风模组90,第二麦克风模组90用于将声音信号转换成电信号。第二麦克风模组90位于耳柄部1001的底段1005。耳机本体100外部的声音能够经第二进音孔1021进入耳机本体100的内部,然后被第二麦克风模组90接收。第二麦克风模组90连接第二软板部13,经第二软板部13和硬板部11连接至堆叠组件2中的芯片。示例性的,第一麦克风模组80可以用作耳机本体100的主麦克风,第二麦克风模组90可以用作耳机本体100的副麦克风。
可以理解的是,上述描述是示例性地对耳机本体100内的主要功能模组、壳体结构及芯片进行描述,在一些实施例中,耳机本体100也可以包括更多或更少的功能模组,可以有其他壳体结构,可以包括更多或更少的芯片。
在本申请实施例中,主控模组20的软硬结合电路板1的软板部的数量为多个,例如前文提及的第一软板部12、第二软板部13及第三软板部14,多个软板部均连接硬板部11。软板部的数量设置及位置设置可以依据耳机本体100的多个功能模组的位置进行设置,本申请对此不做严格限定。
在一些示例性的实施例中,请参阅图5,图5是图3所示主控模组20在一些实施例中的展开的结构示意图。本实施例中,软硬结合电路板1的多个软板部与耳机本体100的多个功能模组的连接关系与前文描述相对应。具体的,第一软板部12在远离硬板部11的方向上依次排布有第一连接区121、第二连接区122以及第三连接区123,第一连接区121用于连接骨振动传感模组60,第二连接区122用于连接听筒模组30,第三连接区123用于连接光学传感模组50。第二软板部13在远离硬板部11的方向上依次排布有第四连接区131、第五连接区132、第六连接区133以及第七连接区134,第四连接区131用于连接天线模组70,第五连接区132用于连接第一麦克风模组80,第六连接区133用于连接第二麦克风模组90,第七连接区134用于连接负极充电端子402。第三软板部14设有第八连接区141,用于连接正极充电端子401。
在另一些的实施例中,请参阅图6,图6是图3所示主控模组20在另一些实施例中的展开的结构示意图。本实施例与前述实施例不同的是,软硬结合电路板1的软板部与耳机本体100的多个功能模组的连接关系发生变化。具体的,第一软板部12设置第一固定区 124,用于连接听筒模组30。第二软板部13在远离硬板部11的方向上依次排布有第二固定区135、第三固定区136、第四固定区137及第五固定区138,还在硬板部11与第二固定区135之间通过分支方式设置有第六固定区139和第七固定区1310,第二固定区135用于连接天线模组70,第三固定区136用于连接第一麦克风模组80,第四固定区137用于连接负极充电端子402,第五固定区138用于连接第二麦克风模组90,第六固定区139用于连接骨振动传感模组60,第七固定区1310用于连接正极充电端子401。
请参阅图7,图7是图3所示主控模组20的软硬结合电路板1的内部结构示意图。
一些实施例中,软硬结合电路板1包括层叠设置的至少一层柔性介质层1a和至少两层第一导电层1b,相邻的两层第一导电层1b之间设有一层柔性介质层1a。至少一层柔性介质层1a和至少两层第一导电层1b形成第一软板部12、硬板部11的中间层以及第二软板部13。第一软板部12、硬板部11的中间层以及第二软板部13为一体的、连续的结构。示例性的,柔性介质层1a可采用聚酰亚胺(polyimide,PI)材料,以使第一软板部12和第二软板部13的耐弯折性能较佳。另一些实施例中,至少一层柔性介质层1a和至少两层第一导电层1b还形成其他软板部,例如第三软板部14。
如图7所示,软硬结合电路板1还包括层叠设置的至少两层硬质介质层1c和至少两层第二导电层1d,至少两层硬质介质层1c中的部分硬质介质层1c位于硬板部11的中间层的一侧、另一部分硬质介质层1c位于硬板部11的中间层的另一侧,至少两层第二导电层1d中的部分第二导电层1d位于硬板部11的中间层的一侧、另一部分第二导电层1d位于硬板部11的中间层的另一侧,位于硬板部11的中间层的同一侧的相邻两层第二导电层1d之间设有一层硬质介质层1c,邻近硬板部11的中间层的第二导电层1d与硬板部11的中间层之间设有一层硬质介质层1c。至少两层硬质介质层1c和至少两层第二导电层1d形成硬板部11的两侧层结构。示例性的,硬质介质层1c可以采用聚丙烯(polypropylene,PP)材料,以使硬板部11具有足够的结构强度。
其中,图7所示软硬结合电路板1的柔性介质层1a的数量为一层,第一导电层1b的数量为两层,硬质介质层1c的数量为六层,第二导电层1d的数量为六层,软硬结合电路板1为八层板结构。其他一些实施例中,柔性介质层1a、第一导电层1b、硬质介质层1c以及第二导电层1d的数量也可以依据需求设置成不同值。
以下通过举例方式对主控模组20的结构进行说明,在不发生冲突的情况下,后文中的各实施例可以相互组合:
请一并参阅图8和图9,图8是图2所示主控模组20在第一实施例中的结构示意图,图9是图8所示主控模组20的部分结构的俯视图。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。
堆叠组件2包括第一基板211、第一支撑件22a以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一基板211采用硬质电路板。示例性的,第一基板211在硬板部11的投影落入硬板部11的范围内。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。即,第一支撑件22a支撑于第一基板211与硬板部11之间。多个芯片231中的一个芯片231固定于第一基板211,多个芯片231中的 一个芯片231固定于硬板部11,固定于第一基板211的芯片231经第一支撑件22a电连接硬板部11。在一些其他实施例中,多个芯片231中的两个以上芯片231固定于第一基板211,和/或,多个芯片231中的两个以上芯片231固定于硬板部11。换言之,在本申请中,多个芯片231中的至少一个芯片231固定于第一基板211、至少一个芯片231固定于硬板部11。多个芯片231在第一基板211和硬板部11上的排布方式是多样的,例如,可以将电源管理芯片和微控制单元芯片固定于硬板部11,将音频芯片固定于第一基板211;也可以将电源管理芯片固定于硬板部11,微控制单元芯片和音频芯片固定于第一基板211。其中,图9中主要示意出了软硬结合电路板1的硬板部11结构及直接固定于硬板部11上的单层器件的结构。
在本实施例中,由于固定于第一基板211的芯片231能够经第一支撑件22a电连接至硬板部11,因此无需在第一基板211与硬板部11之间设置用于传输信号的柔性电路板,第一基板211的芯片231与硬板部11之间的信号传输路径由第一支撑件22a实现,信号传输路径短,使得信号传输质量更佳,例如,音频类信号在传输时发生失真的风险较小。此外,本实施例的主控模组20不再设置连接于第一基板211与硬板部11之间的柔性电路板,也能够避免因柔性电路板发生弯折、且弯折角度较大,而在弯折区造成断裂开路,导致产品失效或良率很低的问题。
其中,软硬结合电路板1的硬板部11的外形轮廓趋近于圆形或为圆形,以满足人耳的形状约束,也提高对耳机本体100内部空间的利用率。示例性,第一基板211的外轮廓的形状与硬板部11的外轮廓的形状相同或相近。
可以理解的是,在本申请实施例中,芯片231可以通过贴片和/或焊接和/或键合等方式固定于电路板(例如硬板部11、第一基板211以及后文提及的基板结构)。例如,如图8所示,位于第一基板211上的芯片231通过键合的方式固定于第一基板211。位于硬板部11的芯片231同时通过贴片和键合的方式固定于电路板。
如图8和图9所示,一些实施例中,主控模组20的堆叠组件2还包括多个芯片匹配器件232。多个芯片匹配器件232中的至少一个芯片匹配器件232固定于第一基板211、至少一个芯片匹配器件232固定于硬板部11。多个芯片匹配器件232的排布位置可以随其对应的芯片231进行排布。
如图8所示,第一支撑件22a包括多个第一架高柱221,多个第一架高柱221位于硬板部11与第一基板211之间且固定于硬板部11。多个第一架高柱221可以根据实际需要设于硬板部11的任意位置,例如设于硬板部11的周缘区域,以使硬板部11的中间区域具有完整的、足够的器件排布面积,从而排布更多器件。
主控模组20的堆叠组件2还包括第一封装层241,第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11。此时,多个第一架高柱221远离硬板部11的一端端面相对第一封装层241露出,第一基板211可连接于第一架高柱221的该端面。其中,第一封装层241还将至少一个芯片匹配器件232封装于硬板部11。第一封装层241能够保护其封装的器件,以使主控模组20的可靠性较高、使用寿命较长。
在本实施例中,第一封装层241直接将多个器件(例如芯片231、芯片匹配器件232) 封装于硬板部11,使得多个器件能够直接通过硬板部11及第一软板部12或第二软板部13与耳机本体100的功能模组相连接,相较于传统封装层中器件需要先封装于一个承载基板,将承载基板焊接于电路板后才能与外部模组连接的方式,本实施例的连接方式更为直接、结构更为简单。
可以理解的是,在本申请实施例中,架高柱(例如第一架高柱221以及后文提及的架高柱结构)的类型包括但不限于填充成型的第一柱体2201和/或预成型的第二柱体2202。换言之,一些实施例中,架高柱包括第一柱体2201;另一些实施例中,架高柱包括第二柱体2202;再一些实施例中,架高柱包括第一柱体2201和第二柱体2202,第一柱体2201和第二柱体2202可以在垂直于硬板部11的方向上堆叠。
其中,第一柱体2201通过在形成于电路板(例如硬板部11、第一基板211以及后文提及的基板结构)上的封装层(例如第一封装层241以及后文中提及的封装层结构)中形成过孔,然后在过孔中填充导电材料(如铝、铜、银等金属材料)以形成实心的第一柱体2201,或者在过孔的孔壁上镀上一层导电材料(如铝、铜、银等金属材料)以形成空心的第一柱体2201。此时,第一柱体2201在成型时即可与电路板相固定,因此无需第一柱体2201与电路板之间设置固定用的焊料或者胶层,信号在第一柱体2201与电路板之间传输时的阻抗较小,信号传输效果较佳。
可以理解的是,多个架高柱固定于电路板时,可以彼此间隔排布,以使后续的封装过程能够顺利的进行,电路板上的各个位置能够形成厚度均匀的封装层。
可以理解的是,上述第一柱体2201既能够起到支撑作用,也能够实现导电。在一些实施例中,若第一柱体2201无需实现导电,则可以将第一柱体2201的材料更换为硬度较大的、非导电的材料,第一柱体2201的材料的硬度大于封装层的材料的硬度。
其中,第二柱体2202是预先制作好的柱状结构。封装层的成型工序是在第二柱体2202与电路板(例如硬板部11、第一基板211以及后文提及的基板结构)形成一体结构后进行的。一种示例中,第二柱体2202通过焊接或者胶粘等组装工艺与电路板进行固定,第二柱体2202与电路板之间具有焊料或胶层。本示例中,第二柱体2202可以采用导电材料,以兼顾支撑功能和导电功能。此时,胶层采用导电胶材料。另一种示例中,第二柱体2202与其连接的电路板一体成型,例如可在电路板制作工序中一并完成。本示例中,第二柱体2202为采用电路板结构的架高板,第二柱体2202可以通过其内部的电路结构实现导电作用,从而兼顾支撑功能和导电功能。由于无需在第二柱体2202与电路板之间设置焊料或者胶层,因此能够降低信号在第二柱体2202与电路板之间传输时的阻抗,得到更好的信号传输效果,而且也由于减少了焊接的次数,进一步提高了产品的稳定性和生产良率。
在本申请实施例中,多个第一架高柱221的类型可以同一类架高柱,也可以是两类以上的架高柱的组合。
示例性的,如图8所示,多个第一架高柱221中的至少一个架高柱包括第一柱体2201。第一封装层241中形成第一过孔2411,在第一过孔2411中填充导电材料,以形成第一柱体2201。第一柱体2201的一端连接硬板部11,另一端相对第一封装层241露出。
多个第一架高柱221中的至少一个架高柱包括第二柱体2202。第二柱体2202的一端连接硬板部11,另一端相对第一封装层241露出。
多个第一架高柱221中的至少一个架高柱包括堆叠的第一柱体2201和第二柱体2202,第二柱体2202位于硬板部11与第一柱体2201之间。包括第一柱体2201和第二柱体2202的架高柱可以先将第二柱体2202固定于硬板部11,然后形成第一封装层241及第二过孔2412,第二过孔2412连接第二柱体2202,接着在第二过孔2412中形成第一柱体2201,第一柱体2201连接第二柱体2202,第一柱体2201远离硬板部11的一端相对第一封装层241露出。
如图8和图9所示,一些实施例中,硬板部11包括朝向第一基板211的第一表面111,第一表面111包括第一封装区域1111及第一非封装区域1112,第一封装层241位于第一封装区域1111,第一非封装区域1112位于第一封装区域1111周边。换言之,第一封装区域1111与硬板部11的边缘之间具有一定间距。在本实施例中,第一非封装区域1112能够在第一封装层241的成型工序中为模具提供支撑空间,避免因模具抵持第一软板部12或第二软板部13而导致软硬结合电路板1产生破损,从而保证主控模组20的生产良率。
示例性的,请一并参阅图10至图12,图10是图8所示主控模组20在制作过程中的结构示意图一,图11是图8所示主控模组20在制作过程中的结构示意图二,图12是图8所示主控模组20在制作过程中的结构示意图三。其中,图10对应于器件固定过程,图11对应于即第一封装层241的成型过程(molding),图12对应于第一封装层241的脱模过程。
如图10所示,将多个器件(芯片231、芯片匹配器件232)及多个第二柱体2202(部分第二柱体2202单独形成第一架高柱,部分第二柱体2202形成第一架高柱的一部分)固定至硬板部11的第一表面111的第一封装区域1111。多个器件的固定方式包括但不限于贴片、焊接、键合、粘接等。
如图11所示,注射设备的上模具3001抵持硬板部11的第一非封装区域1112,且与硬板部11之间形成封装空间3002。第一架高柱的第二柱体2202、芯片231及芯片匹配器件232位于封装空间3002内。上模具3001朝向硬板部11的一侧形成注胶口3003,注胶口3003连通封装空间3002,封装材料可以自注胶口3003注入封装空间3002,以在封装空间3002中形成第一封装层241(如图12)。注射设备的下模具3004位于硬板部11远离上模具3001的一侧,且抵持硬板部11。注射设备的下模具3004在硬板部11上的投影覆盖上模具3001在硬板部11上的投影,以通过硬板部11充分支撑上模具3001。其中,上模具3001及下模具3004均与第一软板部12和第二软板部13不接触,以避免损坏第一软板部12和第二软板部13。
如图12所示,第一封装层241完成后,上模具3001伸出多根顶针3005,部分顶针3005顶持硬板部11的第一非封装区域1112,部分顶针3005顶持第一封装层241,以使上模具3001与第一封装层241相脱离。其中,顶持第一封装层241的顶针3005可部分顶持于第二柱体2202的端面,第二柱体2202提供为顶针3005提供足够的支撑力,以避免顶针3005破坏第一封装层241,使得主控模组20的生产良率较高。
其中,注射设备还可以设置辅助顶块3006,辅助顶块3006用于顶持第一软板部12和第二柔板部13,以辅助脱膜。辅助顶块3006与第一软板部12及第二柔板部13的接触面积很大,以避免因局部应力过大而损坏第一软板部12或第二柔板部13。
请再次参阅图8和图9,一些实施例中,主控模组20的堆叠组件2还包括至少一个第 一器件233,至少一个第一器件233固定于第一非封装区域1112。换言之,第一封装层241对位于硬板部11的器件进行选择性封装,不对第一器件233进行封装。示例性的,第一器件233为不宜进行塑封的器件,包括但不限于带有空腔的声表面波(surface acoustic wave,SAW)滤波器、带有空腔的晶振、压力敏感的器件等。声表面波滤波器主要用于对射频信号进行滤波和放大。晶振主要用于对电源管理芯片的主输入和主输出进行滤波。对压力敏感的器件包括但不限于陀螺仪、三轴加速度计(triaxial accelerometer)等,陀螺仪用于检测角速度,三轴加速度计用于感应加速度。
在本实施例中,硬板部11的第一非封装区域1112既在第一封装层241的成型过程中为模具提供抵持空间,还用于排布不宜封装的第一器件233,因此主控模组20复用了第一非封装区域1112的空间,提高了空间利用率。
在其他实施例中,硬板部11上也可以不设置第一器件233,第一封装层241对位于硬板部11朝向第一基板211一侧的全部器件进行封装。
如图8所示,在一些实施例中,第一基板211焊接多个第一架高柱221。主控模组20的堆叠组件2还包括第二封装层242,第二封装层242位于第一基板211远离硬板部11的一侧,第二封装层242将至少一个芯片231封装于第一基板211。其中,第二封装层242还可以将至少一个芯片匹配器件232封装于第一基板211。第二封装层242能够保护其封装的器件,以使主控模组20的可靠性较高、使用寿命较长。
如图8所示,在一些实施例中,主控模组20的堆叠组件2还包括至少一个第二器件234,至少一个第二器件234固定于第一基板211远离硬板部11的一侧,且位于第二封装层242的外侧。第二器件234为不宜进行塑封的器件,包括但不限于带有空腔的声表面波(surface acoustic wave,SAW)滤波器、带有空腔的晶振、压力敏感的器件等。在本实施例中,主控模组20中的不宜塑封的器件可以依据功能选择及芯片231的排布位置,灵活排布于硬板部11和/或第一基板211,提高了主控模组20器件排布的灵活性和多样化。
如图8所示,在一些实施例中,第一封装层241在硬板部11的投影覆盖第二封装层242在硬板部11的投影,第一封装层241和第二封装层242形成大致呈台阶状的、上下不对等的台阶外形。在其他实施例中,第一封装层241与第二封装层242也可以形成其他规则的、或者不规则的外形。
请参阅图13,图13是图2所示主控模组20在第二实施例中的结构示意图。以下主要描述第二实施例与第一实施例的不同,与第一实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。
堆叠组件2包括第一基板211、第一支撑件22a以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。
第一支撑件22a包括多个第一架高柱221和多个第二架高柱222。多个第一架高柱221位于硬板部11与第一基板211之间且固定于硬板部11。多个第二架高柱222固定于第一基板211朝向硬板部11的一侧,多个第二架高柱222与多个第一架高柱221一一对应地焊接。第二架高柱222的结构可参阅前文中对架高柱结构的描述。多个芯片231中的至少一 个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211。
主控模组20的堆叠组件2还包括第一封装层241、第二封装层242及第三封装层243。第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11。第一封装层241还可以封装有多个芯片匹配器件232。第二封装层242位于第一基板211朝向硬板部11的一侧,第二封装层242将至少一个芯片231封装于第一基板211。第二封装层242还可以封装有多个芯片匹配器件232。第三封装层243位于第一基板211远离硬板部11的一侧,第三封装层243将多个第二架高柱222及至少一个芯片231封装于第一基板211。第三封装层243还可以封装有多个芯片匹配器件232。第三封装层243能够保护其封装的器件,以使主控模组20的可靠性较高、使用寿命较长。
在本实施例中,由于第一支撑件22a包括堆叠设置的第一架高柱221和第二架高柱222,第一支撑件22a具有足够的高度,因此第一基板211与硬板部11之间的间距较大,第一基板211与硬板部11之间能够排布两层器件,使得主控模组20在垂直于硬板部11方向上集成有三层器件,主控模组20及耳机本体100的器件排布密度更大,集成度更高。此外,主控模组20的多个芯片231于三层器件的排布方案也更为灵活和多样,示例性的,第一封装层241可以封装有电源管理芯片,第二封装层242可以封装有微控制单元芯片,第三封装层243可以封装有音频芯片。
一些实施例中,如图13所示,第一封装层241位于硬板部11的第一封装区域1111,硬板部11的第一非封装区域1112可以固定有至少一个第一器件233,第一器件233为不宜进行塑封的器件。
一些实施例中,如图13所示,第二封装层242可以对第一基板211朝向硬板部11一侧的器件进行全尺寸封装,第三封装层243可以对第一基板211远离硬板部11一侧的器件进行局部封装。本申请实施例中,封装层对基板上的器件进行全尺寸封装,也即封装层完全覆盖基板的一侧板面。封装层对基板上的器件进行局部封装,也即封装层部分覆盖基板的一侧板面。第一基板211远离硬板的一侧还可以固定有至少一个第二器件234,第二器件234为不宜进行塑封的器件,至少一个第二器件234位于第三封装层243的外侧。在其他一些实施例中,第一基板211上也可以不设置第二器件234,第三封装层243对第一基板211远离硬板部11一侧的器件进行全尺寸封装。
请参阅图14,图14是图2所示主控模组20在第三实施例中的结构示意图。以下主要描述第三实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。
堆叠组件2包括第一基板211、第二基板212、第一支撑件22a、多个第三架高柱223、第一封装层241、第二封装层242、第三封装层243以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211、至少一个芯片231固定于第二基板212。
第一支撑件22a包括多个第一架高柱221。多个第一架高柱221位于硬板部11与第一 基板211之间且固定于硬板部11。第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11。第一封装层241还可以封装有至少一个芯片匹配器件232。硬板部11的第一非封装区域1112还可以固定有至少一个第一器件233,第一器件233为不宜进行塑封的器件。
第一基板211焊接多个第一架高柱221,固定于第一基板211的芯片231位于第一基板211远离硬板部11的一侧。第二基板212位于第一基板211远离硬板部11的一侧,第二基板212与第一基板211彼此间隔地堆叠设置,多个第三架高柱223位于第二基板212与第一基板211之间、分别与第二基板212和第一基板211抵持。第三架高柱223的结构可以参阅前述架高柱的相关描述。第二封装层242位于第二基板212与第一基板211之间,多个第三架高柱223和固定于第一基板211的芯片231封装于第二封装层242中。第二封装层242还可以将至少一个芯片匹配器件232封装于第一基板211。
多个芯片231中的至少一个芯片231封装于第二封装层242中、并固定于第二基板212。第二封装层242还可以将至少一个芯片匹配器件232封装于第二基板212。
第三封装层243位于第二基板212远离第一基板211的一侧,多个芯片231中的至少一个芯片231封装于第三封装层243中、并固定于第二基板212。也即,固定于第二基板212的芯片231部分位于第二基板212朝向第一基板211的一侧,部分位于第二基板212远离第一基板211的一侧。固定于第二基板212的芯片231经多个第三架高柱223、第一基板211及多个第一架高柱221电连接硬板部11。第三封装层243还可以将至少一个芯片匹配器件232封装于第二基板212。
在本实施例中,主控模组20在硬板部11朝向第一基板211的一侧、第一基板211远离硬板部11的一侧、第二基板212朝向第一基板211的一侧以及第二基板212远离第一基板211的一侧均排布器件,从而在垂直于硬板部11的方向上堆叠有四层器件,提高了器件排布密度和集成度。
一些实施例中,如图14所示,第二封装层242对第一基板211上的器件进行全尺寸封装,对位于第二基板212朝向第一基板211一侧的器件进行全尺寸封装。第三封装层243对位于第二基板212远离第一基板211一侧的器件进行局部封装。第二基板212远离第一基板211的一侧还可以固定有至少一个第二器件234,第二器件234为不宜进行塑封的器件,至少一个第二器件234位于第三封装层243的外侧。可以理解的是,在其他一些实施例中,第二基板212上不再设置第二器件234,第三封装层243对位于第二基板212远离第一基板211一侧的器件进行全尺寸封装。
请参阅图15,图15是图2所示主控模组20在第四实施例中的结构示意图。以下主要描述第四实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。
堆叠组件2包括第一基板211、第一支撑件22a以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。
第一支撑件22a包括多个第一架高柱221。多个第一架高柱221位于硬板部11与第一 基板211之间且固定于硬板部11。第一架高柱221的结构参阅前文第二柱体2202(如图8所示)的结构。
主控模组20的堆叠组件2还包括第一封装层241和第二封装层242。第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11,第一封装层241接触第一基板211。此时,第一封装层241封装位于硬板部11与第一基板211之间的器件。制作主控模组20时,可以先将第一基板211与多个第一架高柱221固定(例如焊接或粘接),然后在第一基板211与硬板部11之间填充封装材料,以形成第一封装层241。第一封装层241还可以将至少一个芯片匹配器件232封装于硬板部11。硬板部11的第一非封装区域1112还可以设置至少一个第一器件233,第一器件233为不宜进行塑封的器件。
第二封装层242固定于第一基板211远离硬板部11的一侧。固定于第一基板211的芯片231部分封装于第一封装层241、部分封装于第二封装层242。换言之,固定于第一基板211的芯片231部分固定于第一基板211朝向硬板部11的一侧,部分固定于第一基板211远离硬板部11的一侧。第一封装层241还可以将至少一个芯片匹配器件232封装于第一基板211。第二封装层242还可以将至少一个芯片匹配器件232封装于第一基板211远离硬板部11的一侧。
在本实施例中,主控模组20在硬板部11朝向第一基板211的一侧、第一基板211朝向硬板部11的一侧以及第一基板211远离硬板部11的一侧均排布器件,从而在垂直于硬板部11的方向上堆叠有三层器件,因此主控模组20及耳机本体100的器件排布密度较大、集成度较高。
一些实施例中,如图15所示,第一封装层241对固定于第一基板211朝向硬板部11一侧的器件进行全尺寸封装,第二封装层242对固定于第一基板211远离硬板部11的一侧的器件进行局部封装。第一基板211远离硬板部11的一侧还可以设置至少一个第二器件234,第二器件234为不宜进行塑封的器件,至少一个第二器件234位于第二封装层242的外侧。在其他一些实施例中,第一基板211上也可以不设置第二器件234,第二封装层242对固定于第一基板211远离硬板部11的一侧的器件进行全尺寸封装。
可以理解的是,前述实施例中,堆叠组件2位于硬板部11的同一侧,在后文实施例中将对堆叠组件2部分位于硬板部11的一侧、部分位于硬板部11的另一侧的方案进行说明,将堆叠组件2位于硬板部11朝向第一基板211一侧的部分简称为上堆叠部分,将堆叠组件2位于硬板部11远离第一基板211一侧的部分简称为下堆叠部分。
请参阅图16,图16是图2所示主控模组20在第五实施例中的结构示意图。以下主要描述第五实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211、第一支撑件22a、第一封装层241、第二封装层242以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。多个芯片231中 的至少两个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211。
第一支撑件22a包括多个第一架高柱221。多个第一架高柱221位于硬板部11与第一基板211之间且固定于硬板部11。第一架高柱221的结构参阅前述架高柱的相关描述。第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11。第一封装层241还封装有至少一个芯片匹配器件232。第一基板211焊接多个第一架高柱221。第二封装层242位于第一基板211远离硬板部11的一侧,第二封装层242将至少一个芯片231封装于第一基板211。第二封装层242还封装有至少一个芯片匹配器件232。
下堆叠部分2b可以包括第四封装层244。第四封装层244固定于硬板部11远离第一基板211的一侧,固定于硬板部11的芯片231中的至少一个芯片231封装于第四封装层244中。换言之,固定于硬板部11的芯片231部分位于硬板部11朝向第一基板211的一侧,部分位于硬板部11远离第一基板211的一侧。
在本实施例中,主控模组20在硬板部11远离第一基板211的一侧、硬板部11朝向第一基板211的一侧以及第一基板211远离硬板部11的一侧均排布器件,从而在垂直于硬板部11的方向上堆叠有三层器件,因此主控模组20及耳机本体100的器件排布密度较大、集成度较高。
一些实施例中,如图16所示,硬板部11的第一非封装区域1112可以固定有至少一个第一器件233,第一器件233为不宜进行塑封的器件。第二封装层242对固定于第一基板211远离硬板部11的一侧的器件进行局部封装。第一基板211远离硬板部11的一侧还可以设置至少一个第二器件234,第二器件234为不宜进行塑封的器件,至少一个第二器件234位于第二封装层242的外侧。在其他一些实施例中,第一基板211上也可以不设置第二器件234,第二封装层242对固定于第一基板211远离硬板部11的一侧的器件进行全尺寸封装。
一些实施例中,如图16所示,硬板部11还包括远离第一基板211的第二表面112,第二表面112与第一表面111相背设置。第二表面112包括第二封装区域1121和位于第二封装区域1121周边的第二非封装区域1122。第二封装区域1121与第一封装区域1111的面积及位置可以相同或不同,本实施例中,以该第二封装区域1121覆盖第一封装区域1111、且面积大于第一封装区域1111为例进行说明。第四封装层244固定于第二封装区域1121,第四封装层244与硬板部11的边缘之间形成间距。示例性的,第四封装层244可以封装固定于硬板部11远离第一基板211一侧的全部器件。
在本实施例中,可以先在硬板部11的第一表面111贴装器件并形成第一封装层241,然后在硬板部11的第二表面112贴装器件并形成第二封装层242,接着将包括第一基板211及其贴装器件的封装结构固定至第一封装层241上方,从而形成主控模组20。
请一并参阅图17至图19,图17是图16所示主控模组20在制作过程中的结构示意图一,图18是图16所示主控模组20在制作过程中的结构示意图二,图19是图16所示主控模组20在制作过程中的结构示意图三。其中,图17对应于器件固定于第二表面112的过程,图18对应于第四封装层244的成型过程,图19对应于第四封装层244的脱模过程。
硬板部11的第一表面111上的器件固定过程及第一封装层241的制作过程可以参阅前 文图10至图12的相关描述。
如图17所示,在将多个器件(包括芯片231及芯片匹配器件232)固定至第二表面112的过程中,通过支撑架400抵持第一非封装区域1112,以支撑硬板部11,使得多个器件能够很好地固定于第二表面112。此时,支撑架400的中部凹陷,以对已完成的第一封装层241进行避让。支撑架400与第一软板部12和第二软板部13不接触,以避免损坏第一软板部12和第二软板部13。一些实施例中,支撑架400还可以同时抵持第一封装层241,以通过第一封装层241进一步支撑硬板部11,硬板部11能够获得更平衡的支撑。多个器件的固定方式包括但不限于贴片、焊接、键合、粘接等。
如图18所示,在第四封装层244的成型过程中,注射设备的上模具3001抵持硬板部11的第二非封装区域1122,且与硬板部11的第二表面112之间形成封装空间3008。固定于第二表面112的芯片231及芯片匹配器件232位于封装空间3008内。上模具3001朝向硬板部11的第二表面112形成注胶口3009,注胶口3009连通封装空间3008,封装材料可以自注胶口3009注入封装空间3008,以在封装空间3008中形成第四封装层244。注射设备的下模具3004位于硬板部11远离上模具3001的一侧,且抵持第一非封装区域1112。其中,上模具3001及下模具3004均与第一软板部12和第二软板部13不接触,以避免损坏第一软板部12和第二软板部13。
如图19所示,第四封装层244完成后,上模具3001伸出多根顶针3005,部分顶针3005顶持硬板部11的第二非封装区域1122,部分顶针3005顶持第四封装层244,以使上模具3001与第四封装层244相脱离。其中,注射设备的还可以设置辅助顶块3006,辅助顶块3006用于顶持第一软板部12和第二柔板部13,以辅助脱膜。辅助顶块3006与第一软板部12及第二柔板部13的接触面积很大,以避免因局部应力过大而损坏第一软板部12或第二柔板部13。
可以理解的是,图16所示第五实施例的堆叠组件2的上堆叠部分2a的结构、与图8所示第一实施例的堆叠组件2的结构相同或相似。在其他一些实施例中,可以将第五实施例的上堆叠部分2a设置成与第二实施例至第四实施例的堆叠组件2相同或相似的结构,以形成结构不同于前述实施例的主控模组20。在其他一些实施例中,可以将堆叠组件2的上堆叠部分2a设置成与第一实施例至第四实施例中的堆叠组件2相同或相似的结构,且将堆叠组件2的下堆叠部分2b也设置成与第一实施例至第四实施例中的堆叠组件2相同或相似的结构,以形成多种结构不同于前述实施例的主控模组20。以下进行举例说明。
请参阅图20,图20是图2所示主控模组20在第六实施例中的结构示意图。以下主要描述第六实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211、第一支撑件22a以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211。
第一支撑件22a包括堆叠设置的多个第一架高柱221和多个第二架高柱222,多个第一架高柱221固定于硬板部11,多个第二架高柱222固定于第一基板211,多个第二架高柱222与多个第一架高柱221一一对应地焊接。
上堆叠部分2a还包括第一封装层241、第二封装层242以及第三封装层243。第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11。第二封装层242位于第一基板211朝向硬板部11的一侧,第二封装层242将多个第二架高柱222及至少一个芯片231封装于第一基板211。第三封装层243位于第一基板211远离硬板部11的一侧,第三封装层243将至少一个芯片231封装于第一基板211。
下堆叠部分2b包括第四封装层244和至少一个芯片231。第四封装层244位于硬板部11远离第一基板211的一侧,第四封装层244将至少一个芯片231封装于硬板部11。
在本实施例中,主控模组20在硬板部11的两侧以及第一基板211的两侧均排布器件,从而在垂直于硬板部11的方向上堆叠有四层器件,因此主控模组20及耳机本体100的器件排布密度较大、集成度较高。
请参阅图21,图21是图2所示主控模组20在第七实施例中的结构示意图。以下主要描述第七实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211和第一支撑件22a。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。下堆叠部分2b包括第三基板213和第二支撑件22b。第三基板213位于硬板部11远离第一基板211的一侧,且与硬板部11彼此间隔地堆叠设置,第二支撑件22b位于第三基板213与硬板部11之间、分别与第三基板213和硬板部11抵持。
堆叠组件2包括多个芯片231,多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211、至少一个芯片231固定于第三基板213。固定于第一基板211的芯片231经第一支撑件22a电连接硬板部11。固定于第三基板213的芯片231经第二支撑件22b电连接硬板部11。
第一支撑件22a包括堆叠设置的多个第一架高柱221和多个第二架高柱222,多个第一架高柱221固定于硬板部11,多个第二架高柱222固定于第一基板211,多个第二架高柱222与多个第一架高柱221一一对应地焊接。第二支撑件22b包括多个第四架高柱224,多个第四架高柱224固定于硬板部11。第三基板213焊接多个第四架高柱224,固定于第三基板213的芯片231位于第三基板213远离硬板部11的一侧。
上堆叠部分2a还包括第一封装层241、第二封装层242以及第三封装层243。第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11。第二封装层242位于第一基板211朝向硬板部11的一侧,第二封装层242将多个第二架高柱222及至少一个芯片231封装于第一基板211。第三封装层243位于第一基板211远离硬板部11的一侧,第三封装层243将至少一个芯片 231封装于第一基板211。
下堆叠部分2b还包括第四封装层244以及第五封装层245。第四封装层244位于硬板部11远离第一基板211的一侧,第四封装层244将多个第四架高柱224及至少一个芯片231封装于硬板部11。第五封装层245位于第三基板213远离硬板部11的一侧,第五封装层245将至少一个芯片231封装于第三基板213。
硬板部11的第一非封装区域1112可以固定有至少一个第一器件233,第一器件233为不宜进行塑封的器件。硬板部11的第二非封装区域1122也可以固定有至少一个第一器件233。第一基板211远离硬板部11的一侧可以固定有至少一个第二器件234,第二器件234为不宜进行塑封的器件,第二器件234位于第三封装层243的外侧。第三基板213远离硬板部11的一侧可以固定有至少一个第二器件234,第二器件234位于第五封装层245的外侧。
在本实施例中,主控模组20在硬板部11的两侧、第一基板211的两侧以及第三基板213远离硬板部11的一侧均排布器件,从而在垂直于硬板部11的方向上堆叠有五层器件,因此主控模组20及耳机本体100的器件排布密度较大、集成度较高。
请参阅图22,图22是图2所示主控模组20在第八实施例中的结构示意图。以下主要描述第八实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211和第一支撑件22a。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。下堆叠部分2b包括第三基板213和第二支撑件22b。第三基板213位于硬板部11远离第一基板211的一侧,且与硬板部11彼此间隔地堆叠设置,第二支撑件22b位于第三基板213与硬板部11之间、分别与第三基板213和硬板部11抵持。
堆叠组件2包括多个芯片231,多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211、至少一个芯片231固定于第三基板213。固定于第一基板211的芯片231经第一支撑件22a电连接硬板部11。固定于第三基板213的芯片231经第二支撑件22b电连接硬板部11。
第一支撑件22a包括堆叠设置的多个第一架高柱221和多个第二架高柱222,多个第一架高柱221固定于硬板部11,多个第二架高柱222固定于第一基板211,多个第二架高柱222与多个第一架高柱221一一对应地焊接。第二支撑件22b包括堆叠设置的多个第四架高柱224和多个第五架高柱225,多个第四架高柱224固定于硬板部11,多个第五架高柱225固定于第三基板213,多个第五架高柱225与多个第四架高柱224一一对应地焊接。
上堆叠部分2a还包括第一封装层241、第二封装层242以及第三封装层243。第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11。第二封装层242位于第一基板211朝向硬板部11的一侧,第二封装层242将多个第二架高柱222及至少一个芯片231封装于第一基板211。第三封装层243位于第一基板211远离硬板部11的一侧,第三封装层243将至少一个芯片 231封装于第一基板211。
下堆叠部分2b还包括第四封装层244、第五封装层245以及第六封装层246。第四封装层244位于硬板部11远离第一基板211的一侧,第四封装层244将多个第四架高柱224及至少一个芯片231封装于硬板部11。第五封装层245位于第三基板213朝向硬板部11的一侧,第五封装层245将多个第五架高柱225及至少一个芯片231封装于第三基板213。第六封装层246位于第三基板213远离硬板部11的一侧,第六封装层246将至少一个芯片231封装于第三基板213。
硬板部11的第一非封装区域1112可以固定有至少一个第一器件233,第一器件233为不宜进行塑封的器件。硬板部11的第二非封装区域1122也可以固定有至少一个第一器件233。第一基板211远离硬板部11的一侧可以固定有至少一个第二器件234,第二器件234为不宜进行塑封的器件,第二器件234位于第三封装层243的外侧。第三基板213远离硬板部11的一侧可以固定有至少一个第二器件234,第二器件234位于第六封装层246的外侧。
在本实施例中,主控模组20在硬板部11的两侧、第一基板211的两侧以及第三基板213的两侧均排布器件,从而在垂直于硬板部11的方向上堆叠有六层器件,因此主控模组20及耳机本体100的器件排布密度较大、集成度较高。
在本实施例中,分别位于硬板部11两侧的上堆叠部分2a与下堆叠部分2b大致对称设置,主控模组20集成有更多层器件,器件排布密度很高。
请参阅图23,图23是图2所示主控模组20在第九实施例中的结构示意图。以下主要描述第九实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211和第一支撑件22a。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。下堆叠部分2b包括第三基板213、第四基板214以及多个第六架高柱226。第三基板213位于硬板部11远离第一基板211的一侧,且与硬板部11彼此间隔地堆叠设置,第二支撑件22b位于第三基板213与硬板部11之间、分别与第三基板213和硬板部11抵持。第四基板214位于第三基板213远离硬板部11的一侧,且与第三基板213彼此间隔地堆叠设置,多个第六架高柱226位于第四基板214与第三基板213之间、分别与第四基板214和第三基板213抵持。
堆叠组件2包括多个芯片231,多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211、至少一个芯片231固定于第三基板213、至少一个芯片231固定于第四基板214。固定于第一基板211的芯片231经第一支撑件22a电连接硬板部11。固定于第三基板213的芯片231经第二支撑件22b电连接硬板部11。固定于第四基板214的芯片231经第六架高柱226、第三基板213及第二支撑件22b电连接硬板部11。
第一支撑件22a包括堆叠设置的多个第一架高柱221和多个第二架高柱222,多个第 一架高柱221固定于硬板部11,多个第二架高柱222固定于第一基板211,多个第二架高柱222与多个第一架高柱221一一对应地焊接。第二支撑件22b包括堆叠设置的多个第四架高柱224,多个第四架高柱224固定于硬板部11。第三基板213焊接多个第四架高柱224。
上堆叠部分2a还包括第一封装层241、第二封装层242以及第三封装层243。第一封装层241位于硬板部11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11。第二封装层242位于第一基板211朝向硬板部11的一侧,第二封装层242将多个第二架高柱222及至少一个芯片231封装于第一基板211。第三封装层243位于第一基板211远离硬板部11的一侧,第三封装层243将至少一个芯片231封装于第一基板211。
下堆叠部分2b还包括第四封装层244、第五封装层245以及第六封装层246。第四封装层244位于硬板部11远离第一基板211的一侧,第四封装层244将多个第四架高柱224及至少一个芯片231封装于硬板部11。第五封装层245位于第三基板213与第四基板214之间,第五封装层245将多个第六架高柱226及至少一个芯片231封装于第三基板213、且将至少一个芯片231封装于第四基板214。第六封装层246位于第四基板214远离第三基板213的一侧,第六封装层246将至少一个芯片231封装于第四基板214。
硬板部11的第一非封装区域1112可以固定有至少一个第一器件233,第一器件233为不宜进行塑封的器件。硬板部11的第二非封装区域1122也可以固定有至少一个第一器件233。第一基板211远离硬板部11的一侧可以固定有至少一个第二器件234,第二器件234为不宜进行塑封的器件,第二器件234位于第三封装层243的外侧。第四基板214远离第三基板213的一侧可以固定有至少一个第二器件234,第二器件234位于第六封装层246的外侧。
在本实施例中,主控模组20在硬板部11的两侧、第一基板211的两侧、第三基板213远离硬板部11的一侧以及第四基板214的两侧均排布器件,从而在垂直于硬板部11的方向上堆叠有七层器件,因此主控模组20及耳机本体100的器件排布密度较大、集成度较高。
请参阅图24,图24是图2所示主控模组20在第十实施例中的结构示意图。以下主要描述第十实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211和第一支撑件22a。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。下堆叠部分2b包括第三基板213和第二支撑件22b。第三基板213位于硬板部11远离第一基板211的一侧,第三基板213与硬板部11彼此间隔地堆叠设置。第二支撑件22b位于第三基板213与硬板部11之间、分别与第三基板213和硬板部11抵持。第一支撑件22a包括多个第一架高柱221,第二支撑件22b包括多个第四架高柱224。第一架高柱221的结构及第四架高柱224参阅前述第二柱体2202(如图8所示)的相关面熟。
上堆叠部分2a还包括第一封装层241和第二封装层242。第一封装层241位于硬板部 11与第一基板211之间,第一封装层241将多个第一架高柱221及至少一个芯片231封装于硬板部11,且将至少一个芯片231封装于第一基板211。此时,第一封装层241封装位于硬板部11与第一基板211之间的器件。制作主控模组20时,可以先将第一基板211与多个第一架高柱221固定(例如焊接或粘接),然后在第一基板211与硬板部11之间填充封装材料,以形成第一封装层241。第二封装层242固定于第一基板211远离硬板部11的一侧,第二封装层242将至少一个芯片231封装于第一基板211。
下堆叠部分2b还包括第四封装层244以及第五封装层245。第四封装层244位于硬板部11与第三基板213之间,第四封装层244将多个第四架高柱224及至少一个芯片231封装于硬板部11,且将至少一个芯片231封装于第三基板213。此时,第四封装层244封装位于硬板部11与第三基板213之间的器件。制作主控模组20时,可以先将第三基板213与多个第四架高柱224固定(例如焊接或粘接),然后在第三基板213与硬板部11之间填充封装材料,以形成第四封装层244。第五封装层245固定于第三基板213远离硬板部11的一侧,第五封装层245将至少一个芯片231封装于第三基板213。
在本实施例中,主控模组20在硬板部11的两侧、第一基板211的两侧以及第三基板213的两侧均排布器件,从而在垂直于硬板部11的方向上堆叠有六层器件,因此主控模组20及耳机本体100的器件排布密度较大、集成度较高。
请参阅图25,图25是图2所示主控模组20在第十一实施例中的结构示意图。以下主要描述第十一实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。
堆叠组件2包括第一基板211、第一支撑件22a以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211。第一支撑件22a为第一架高板227,第一架高板227为中空结构,至少一个芯片231位于第一架高板227内侧。固定于第一基板211的芯片231经第一架高板227电连接硬板部11。其中,第一架高板227为电路板结构,第一架高板227可以通过组装方式固定于硬板部11,也可以与硬板部11一体成型。
在本实施例中,主控模组20通过第一架高板227在第一基板211与硬板部11之间支撑出器件排布空间,使得主控模组20能够集成至少两层器件,从而提高器件排布密度,主控模组20及耳机本体100的器件集成度较高。
其中,主控模组20还包括多个芯片匹配器件232,多个芯片匹配器件232中的至少一个芯片匹配器件232固定于硬板部11、至少一个芯片匹配器件232固定于第一基板211。
一些实施例中,如图25所示,固定于硬板部11的器件均位于硬板部11朝向第一基板211的一侧,且部分器件位于第一架高板227内侧,部分器件位于第一架高板227外侧。另一些实施例中,固定于硬板部11的器件均位于硬板部11朝向第一基板211的一侧,且位于第一架高板227内侧。再一些实施例中,固定于硬板部11的器件部分位于硬板部11朝向第一基板211的一侧、部分位于硬板部11远离第一基板211的一侧。
一些实施例中,如图25所示,固定于第一基板211的器件部分位于第一基板211与硬 板部11之间,部分位于第一基板211远离硬板部11的一侧。第一架高板227连接第一基板211的周缘,固定于第一基板211朝向硬板部11一侧的器件位于第一架高板227内侧。在另一些实施例中,固定于第一基板211的器件均位于第一基板211与硬板部11之间或者第一基板211远离硬板部11的一侧。
请参阅图26,图26是图2所示主控模组20在第十二实施例中的结构示意图。以下主要描述第十二实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211、第一支撑件22a以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211。第一支撑件22a为第一架高板227,第一架高板227为中空结构,至少一个芯片231位于第一架高板227内侧。下堆叠部分2b包括固定于硬板部11远离第一基板211一侧的至少一个芯片231。
在本实施例中,多个芯片231中的至少一个芯片231固定于硬板部11远离第一基板211的一侧、至少一个芯片231固定于硬板部11朝向第一基板211的一侧、至少一个芯片231固定于第一基板211朝向硬板部11的一侧、至少一个芯片231固定于第一基板211远离硬板部11的一侧。也即,硬板部11的两侧均排布器件,第一基板211的两侧均排布器件,因此主控模组20集成有四层器件,器件排布密度高,主控模组20及耳机本体100的器件集成度高。
其中,上堆叠部分2a还包括第一封装层241,第一封装层241位于第一基板211远离硬板部11的一侧,且封装有至少一个芯片231。第一封装层241还可以封装有至少一个芯片匹配器件232。第一封装层241可以对固定于第一基板211远离硬板部11的一侧的器件进行全尺寸封装(如图26)或者局部封装。
请参阅图27,图27是图2所示主控模组20在第十三实施例中的结构示意图。以下主要描述第十三实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211、第二基板212、第一支撑件22a、多个第三架高柱223以及多个芯片231。第一基板211与硬板部11彼此间隔地堆叠设置。第一支撑件22a位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。第二基板212位于第一基板211远离硬板部11的一侧,且与第一基板211彼此堆叠地间隔设置。多个第三架高柱223位于第二基板212与第一基板211之间、分别与第二基板212和第一基板211抵持。多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211、至少一个芯片231固定于第二基板212。固定于第一基板211的芯片231通过第一支撑件22a电连接硬板部11,固定于第二基板212的芯片231通过多个第三架高柱223、 第一基板211以及第一支撑件22a电连接硬板部11。下堆叠部分2b包括固定于硬板部11远离第一基板211一侧的至少一个芯片231。
第一支撑件22a为第一架高板227,第一架高板227为中空结构,至少一个芯片231位于第一架高板227内侧。其中,第一架高板227为电路板结构,第一架高板227可以通过组装方式固定于硬板部11,也可以与硬板部11一体成型。第三架高柱223可采用前文描述的第二柱体2202的结构。
上堆叠部分2a还包括第一封装层241和第二封装层242。第一封装层241位于第一基板211与第二基板212之间,用于封装第一基板211与第二基板212之间的器件。第二封装层242位于第二基板212远离第一基板211的一侧,第二封装层242可以对固定于第二基板212远离第一基板211的一侧的器件进行局部封装(如图27所示)或全尺寸封装。
在本实施例中,硬板部11的两侧、第一基板211的两侧及第二基板212的两侧均排布有器件,主控模组20集成有六层器件,器件排布密度大,主控模组20及耳机本体100的器件集成度高。在其他实施例中,硬板部11、第一基板211或第二基板212中的一者或两者以上也可以单侧排布器件。
其中,第二基板212远离第一基板211的一侧可以固定有至少一个第二器件234,第二器件234为不宜进行塑封的器件,第二器件234位于第二封装层242的外侧。硬板部11上可以固定有至少一个第一器件233,第一器件233为不宜进行塑封的器件,第一器件233位于第一架高板227的外侧。
请参阅图28,图28是图2所示主控模组20在第十四实施例中的结构示意图。以下主要描述第十四实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括软硬结合电路板1和堆叠组件2。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13。堆叠组件2堆叠于硬板部11。堆叠组件2包括分别位于硬板部11两侧的上堆叠部分2a和下堆叠部分2b。
上堆叠部分2a包括第一基板211和第一架高板227。第一基板211与硬板部11彼此间隔地堆叠设置。第一架高板227位于第一基板211与硬板部11之间、分别与第一基板211和硬板部11抵持。下堆叠部分2b包括第二基板212和第二架高板228。第二基板212位于硬板部11远离第一基板211的一侧,且与硬板部11彼此间隔地堆叠设置。第二架高板228位于第二基板212与硬板部11之间、分别与第二基板212和硬板部11抵持。
堆叠组件2包括多个芯片231,多个芯片231中的至少一个芯片231固定于硬板部11、至少一个芯片231固定于第一基板211、至少一个芯片231固定于第二基板212。第一架高板227为中空结构,至少一个芯片231位于第一架高板227内侧。固定于第一基板211的芯片231经第一架高板227电连接硬板部11。第二架高板228为中空结构,至少一个芯片231位于第二架高板228内侧。固定于第二基板212的芯片231经第二架高板228电连接硬板部11。
在本实施例中,主控模组20通过第一架高板227将第一基板211固定于硬板部11的一侧,通过第二架高板228将第二基板212固定于硬板部11的另一侧,从而形成三层电路板的堆叠结构,器件可以灵活排布于这三层电路板的单侧或双侧,形成至少三层器件的堆叠结构,因此主控模组20的器件排布密度大、集成度高。
示例性的,如图28所示,硬板部11的两侧均固定有至少一个芯片231和至少一个芯片匹配器件232,第一基板211的两侧均固定有至少一个芯片231和至少一个芯片匹配器件232,第二基板212朝向硬板部11的一侧固定有至少一个芯片231和至少一个芯片匹配器件232,主控模组20形成五层器件的堆叠结构。
请参阅图29,图29是图2所示主控模组20在第十五实施例中的结构示意图。以下主要描述第十五实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
在本实施例中,第二基板212远离硬板部11的一侧也可以固定有至少一个芯片231和至少一个芯片匹配器件232,主控模组20形成六层器件的堆叠结构。主控模组20还包括第一封装层241,第一封装层241位于第二基板212远离硬板部11的一侧,第一封装层241可以对固定于第二基板212远离硬板部11的一侧的器件进行局部封装(如图29所示)或全尺寸封装。
请参阅图30,图30是图2所示主控模组20在第十六实施例中的结构示意图。以下主要描述第十六实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括第一基板211、第二基板212、软硬结合电路板1以及多个芯片231。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13,硬板部11为中空结构,硬板部11位于耳塞部1002(参阅图4),第一软板部12位于耳塞部1002且一端连接硬板部11,第二软板部13的一端连接硬板部11、另一端延伸至耳柄部1001(参阅图4)。
第一基板211与第二基板212彼此间隔地堆叠设置,硬板部11固定于第一基板211与第二基板212之间。多个芯片231中的至少一个芯片231固定于第一基板211,多个芯片231中的至少一个芯片231固定于第二基板212,至少一个芯片231位于硬板部11内侧,固定于第一基板211及第二基板212的芯片231电连接硬板部11。
在本实施例中,软硬结合电路板1的硬板部11作为第一基板211与第二基板212之间的架高结构,使第一基板211与第二基板212之间形成间距,第一基板211的一侧或两侧、以及第二基板212的一侧或两侧上均可以排布器件,因此主控模组20集成有堆叠设置的至少两层器件,从而具有较大的器件排布密度,主控模组20及耳机本体100的器件集成度高。
示例性的,图30所示实施例中,第一基板211的两侧均排布有至少一个芯片231和至少一个芯片匹配器件232,第二基板212的两侧均排布有至少一个芯片231和至少一个芯片匹配器件232。第一基板211和/或第二基板212上还可以排布不宜塑封的器件。
请参阅图31,图31是图2所示主控模组20在第十七实施例中的结构示意图。以下主要描述第十七实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
本实施例中,主控模组20还包括第一封装层241、第二封装层242、第三封装层243以及第四封装层244。第一封装层241位于第一基板211朝向第二基板212的一侧,第一封装层241位于硬板部11的内侧。第一封装层241封装有至少一个芯片231,还可以封装有至少一个芯片匹配器件232。第二封装层242位于第一基板211远离第二基板212的一侧,第二封装层242封装有至少一个芯片231,还可以封装有至少一个芯片匹配器件232。第一基板211远离第二基板212的一侧上还可以固定有至少一个第一器件233,第一器件233为不宜塑封的器件,第一器件233位于第二封装层242的外侧。
第三封装层243位于第二基板212朝向第一基板211的一侧,第三封装层243位于硬板部11的内侧。第三封装层243封装有至少一个芯片231,还可以封装有至少一个芯片匹配器件232。第四封装层244位于第二基板212远离第一基板211的一侧,第四封装层244封装有至少一个芯片231,还可以封装有至少一个芯片匹配器件232。第二基板212远离第一基板211的一侧上还可以固定有至少一个第二器件234,第二器件234为不宜塑封的器件,第二器件234位于第四封装层244的外侧。
请参阅图32,图32是图2所示主控模组20在第十八实施例中的结构示意图。以下主要描述第十八实施例与前述实施例的不同,与前述实施例相同的大部分内容不再赘述。
主控模组20包括第一基板211、第二基板212、第三基板213、软硬结合电路板1、多个第一架高柱221以及多个芯片231。软硬结合电路板1包括硬板部11及连接硬板部11的第一软板部12和第二软板部13,硬板部11为中空结构。第一基板211与第二基板212彼此间隔地堆叠设置,硬板部11固定于第一基板211与第二基板212之间。第三基板213位于第一基板211远离第二基板212的一侧,第三基板213与第一基板211彼此间隔地堆叠设置,多个第一架高柱221固定于第三基板213与第一基板211之间。第一架高柱221可参阅前文中第二柱体2202(参阅图8)的相关描述。
第一基板211的两侧、第二基板212的两侧及第三基板213的两侧均分布有至少一个芯片231和至少一个芯片匹配器件232。固定于第三基板213的器件经多个第一架高柱221及第一基板211电连接硬板部11。
主控模组20还包括第一封装层241、第二封装层242、第三封装层243、第四封装层244以及第五封装层245。第一封装层241位于第一基板211朝向第二基板212的一侧,第一封装层241位于硬板部11的内侧,第一封装层241封装有至少两个器件。第二封装层242位于第一基板211与第三基板213之间,第二封装层242封装多个第一架高柱221以及位于第一基板211与第三基板213之间的器件。第三封装层243位于第三基板213远离第一基板211的一侧,第三封装层243封装有至少两个器件。第三基板213远离第一基板211的一侧还可以固定有至少一个第一器件233,第一器件233为不宜塑封的器件,第一器件233位于第三封装层243的外侧。
第四封装层244位于第二基板212朝向第一基板211的一侧,第四封装层244位于硬板部11的内侧。第三封装层243封装有至少两个器件。第五封装层245位于第二基板212远离第一基板211的一侧,第五封装层245封装有至少两个器件。第二基板212远离第一基板211的一侧上还可以固定有至少一个第二器件234,第二器件234为不宜塑封的器件,第二器件234位于第五封装层245的外侧。
在本实施例中,主控模组20包括堆叠设置的三层电路板(第一基板211、第二基板212及第三基板213),各电路板的两侧均能够排布器件,从而集成有六层器件,器件排布密度大,主控模组20及耳机本体100的器件集成度高。
以上,仅为本申请的具体实施例,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内;在不冲突的情况下,本申请的实施例及实施例中的特征可以相互组合。因此,本申请的保护范围应以权利要求的保护范围为准。

Claims (17)

  1. 一种无线耳机,其特征在于,具有耳柄部和连接所述耳柄部的耳塞部,所述无线耳机包括主控模组,所述主控模组包括软硬结合电路板、第一基板、第一支撑件以及多个芯片;
    所述软硬结合电路板包括硬板部及连接所述硬板部的第一软板部和第二软板部,所述硬板部位于所述耳塞部,所述第一软板部位于所述耳塞部且一端连接所述硬板部,所述第二软板部的一端连接所述硬板部、另一端延伸至所述耳柄部;
    所述第一基板与所述硬板部彼此间隔地堆叠设置,所述第一支撑件位于所述第一基板与所述硬板部之间、分别与所述第一基板和所述硬板部抵持,所述多个芯片中的至少一个所述芯片固定于所述硬板部,所述多个芯片中的至少一个所述芯片固定于所述第一基板,固定于所述第一基板的所述芯片经所述第一支撑件电连接所述硬板部。
  2. 根据权利要求1所述的无线耳机,其特征在于,所述第一支撑件包括多个第一架高柱,所述多个第一架高柱位于所述硬板部与所述第一基板之间且固定于所述硬板部;
    所述主控模组还包括第一封装层,所述第一封装层位于所述硬板部与所述第一基板之间,所述第一封装层将所述多个第一架高柱及至少一个所述芯片封装于所述硬板部。
  3. 根据权利要求2所述的无线耳机,其特征在于,所述硬板部包括朝向第一基板的第一表面,所述第一表面包括第一封装区域及第一非封装区域,所述第一封装层位于所述第一封装区域,所述第一非封装区域位于所述第一封装区域周边。
  4. 根据权利要求3所述的无线耳机,其特征在于,所述主控模组还包括至少一个第一器件,所述至少一个第一器件固定于所述第一非封装区域。
  5. 根据权利要求2至4中任一项所述的无线耳机,其特征在于,所述第一基板焊接所述多个第一架高柱,所述主控模组还包括第二封装层,所述第二封装层位于所述第一基板远离所述硬板部的一侧,所述第二封装层将至少一个所述芯片封装于所述第一基板。
  6. 根据权利要求2至4中任一项所述的无线耳机,其特征在于,所述第一支撑件还包括多个第二架高柱,所述多个第二架高柱固定于所述第一基板朝向所述硬板部的一侧,所述多个第二架高柱与所述多个第一架高柱一一对应地焊接;
    所述主控模组还包括第二封装层及第三封装层,所述第二封装层位于所述第一基板远离所述硬板部的一侧,所述第二封装层将至少一个所述芯片封装于所述第一基板,所述第三封装层位于所述第一基板朝向所述硬板部的一侧,所述第三封装层将所述多个第二架高柱及至少一个所述芯片封装于所述第一基板。
  7. 根据权利要求5或6所述的无线耳机,其特征在于,所述主控模组还包括至少一个第二器件,所述至少一个第二器件固定于所述第一基板远离所述硬板部的一侧,且位于所述第二封装层的外侧。
  8. 根据权利要求2至4中任一项所述的无线耳机,其特征在于,所述主控模组还包括第二基板、第二封装层、第三封装层以及多个第三架高柱;
    所述第一基板焊接所述多个第一架高柱,固定于所述第一基板的所述芯片位于所述 第一基板远离所述硬板部的一侧,所述第二基板位于所述第一基板远离所述硬板部的一侧,所述第二基板与所述第一基板彼此间隔地堆叠设置,所述多个第三架高柱位于所述第二基板与所述第一基板之间、分别与所述第二基板和所述第一基板抵持;
    所述第二封装层位于所述第二基板与所述第一基板之间,所述多个第三架高柱和固定于所述第一基板的所述芯片封装于所述第二封装层中;
    所述多个芯片中的至少一个芯片封装于所述第二封装层中、并固定于所述第二基板;所述第三封装层位于所述第二基板远离所述第一基板的一侧,所述多个芯片中的至少一个芯片封装于所述第三封装层中、并固定于所述第二基板;固定于所述第二基板的所述芯片经所述多个第三架高柱、所述第一基板及所述多个第一架高柱电连接所述硬板部。
  9. 根据权利要求2至4中任一项所述的无线耳机,其特征在于,所述第一封装层接触所述第一基板,所述主控模组还包括第二封装层,所述第二封装层固定于所述第一基板远离所述硬板部的一侧;
    固定于所述第一基板的所述芯片部分封装于所述第一封装层、部分封装于所述第二封装层。
  10. 根据权利要求2至4中任一项所述的无线耳机,其特征在于,所述主控模组还包括第四封装层,所述第四封装层固定于所述硬板部远离所述第一基板的一侧,固定于所述硬板部的所述芯片中的至少一个所述芯片封装于所述第四封装层中。
  11. 根据权利要求2至4中任一项所述的无线耳机,其特征在于,所述主控模组还包括第三基板和第二支撑件,所述第三基板位于所述硬板部远离所述第一基板的一侧,且与所述硬板部彼此间隔地堆叠设置,所述第二支撑件位于所述第三基板与所述硬板部之间、分别与所述第三基板和所述硬板部抵持,所述多个芯片中的至少一个所述芯片固定于所述第三基板,固定于所述第三基板的所述芯片经所述第二支撑件电连接所述硬板部。
  12. 根据权利要求1所述的无线耳机,其特征在于,所述第一支撑件为第一架高板,所述第一架高板为中空结构,至少一个所述芯片位于所述第一架高板内侧。
  13. 根据权利要求12所述的无线耳机,其特征在于,所述主控模组还包括第二基板和第二架高板,所述第二基板位于所述硬板部远离所述第一基板的一侧,且与所述硬板部彼此间隔地堆叠设置,所述第二架高板位于所述第二基板与所述硬板部之间、分别与所述第二基板和所述硬板部抵持,所述多个芯片中的至少一个所述芯片固定于所述第二基板,固定于所述第二基板的所述芯片经所述第二架高板电连接所述硬板部,所述第二架高板为中空结构,至少一个所述芯片位于所述第二架高板内侧。
  14. 根据权利要求1至13中任一项所述的无线耳机,其特征在于,所述耳塞部设有听筒模组,所述第一软板部连接所述听筒模组;所述耳柄部设有电池,所述第二软板部连接所述电池;
    所述多个芯片包括微控制单元芯片、电源管理芯片以及音频芯片,所述电源管理芯片及所述音频芯片均电连接所述微控制单元芯片,所述听筒模组经所述第一软板部及所述硬板部电连接所述音频芯片,所述电池经所述第二软板部及所述硬板部电连接所 述电源管理芯片。
  15. 根据权利要求1至14中任一项所述的无线耳机,其特征在于,所述软硬结合电路板包括层叠设置的至少一层柔性介质层和至少两层第一导电层,相邻的两层所述第一导电层之间设有一层所述柔性介质层,所述至少一层柔性介质层和所述至少两层第一导电层形成所述第一软板部、所述硬板部的中间层以及所述第二软板部;
    所述软硬结合电路板还包括层叠设置的至少两层硬质介质层和至少两层第二导电层,所述至少两层硬质介质层中的部分所述硬质介质层位于所述硬板部的中间层的一侧、另一部分所述硬质介质层位于所述硬板部的中间层的另一侧,所述至少两层第二导电层中的部分所述第二导电层位于所述硬板部的中间层的一侧、另一部分所述第二导电层位于所述硬板部的中间层的另一侧,位于所述硬板部的中间层的同一侧的相邻两层所述第二导电层之间设有一层所述硬质介质层,邻近所述硬板部的中间层的所述第二导电层与所述硬板部的中间层之间设有一层所述硬质介质层。
  16. 一种无线耳机,其特征在于,具有耳柄部和连接所述耳柄部的耳塞部,所述无线耳机包括主控模组,所述主控模组包括第一基板、第二基板、软硬结合电路板以及多个芯片,所述软硬结合电路板包括硬板部及连接所述硬板部的第一软板部和第二软板部;
    所述第一基板和所述第二基板位于所述耳塞部,所述第一基板与所述第二基板彼此间隔地堆叠设置,所述硬板部为中空结构,所述硬板部固定于所述第一基板与所述第二基板之间,所述第一软板部位于所述耳塞部且一端连接所述硬板部,所述第二软板部的一端连接所述硬板部、另一端延伸至所述耳柄部;
    所述多个芯片中的至少一个所述芯片固定于所述第一基板,所述多个芯片中的至少一个所述芯片固定于所述第二基板,至少一个所述芯片位于所述硬板部内侧,固定于所述第一基板及所述第二基板的所述芯片电连接所述硬板部。
  17. 根据权利要求16所述的无线耳机,其特征在于,所述耳塞部设有听筒模组,所述第一软板部连接所述听筒模组;所述耳柄部设有电池,所述第二软板部连接所述电池;
    所述多个芯片包括微控制单元芯片、电源管理芯片以及音频芯片,所述电源管理芯片及所述音频芯片均电连接所述微控制单元芯片,所述听筒模组经所述第一软板部及所述硬板部电连接所述音频芯片,所述电池经所述第二软板部及所述硬板部电连接所述电源管理芯片。
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KR20220085821A (ko) 2022-06-22
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