WO2019061356A1 - 麦克风组件及电子设备 - Google Patents

麦克风组件及电子设备 Download PDF

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Publication number
WO2019061356A1
WO2019061356A1 PCT/CN2017/104594 CN2017104594W WO2019061356A1 WO 2019061356 A1 WO2019061356 A1 WO 2019061356A1 CN 2017104594 W CN2017104594 W CN 2017104594W WO 2019061356 A1 WO2019061356 A1 WO 2019061356A1
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WO
WIPO (PCT)
Prior art keywords
hole
housing
microphone
bracket member
electronic device
Prior art date
Application number
PCT/CN2017/104594
Other languages
English (en)
French (fr)
Inventor
杨峻
余鹏飞
李�杰
赵欢
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 CN201780093834.3A priority Critical patent/CN111108756B/zh
Priority to EP17926815.6A priority patent/EP3668109B1/en
Priority to PCT/CN2017/104594 priority patent/WO2019061356A1/zh
Publication of WO2019061356A1 publication Critical patent/WO2019061356A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H04R1/086—Protective screens, e.g. all weather or wind screens
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/04—Structural association of microphone with electric circuitry therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the present application relates to the field of intelligent hardware products, and in particular, to a microphone component and an electronic device.
  • the waterproof interface is usually used to adhere the waterproof film to the waterproof function of the audio device.
  • the audio performance and waterproof requirements of the device are mutually influential factors.
  • the microphone is used to receive the sound, and the microphone position also needs to be waterproofed. Under the premise that the waterproof function is satisfied, the microphone has audio performance. More demanding. Therefore, the industry is constantly exploring how to design a waterproof membrane mounting solution for the microphone position to minimize the impact of the waterproof membrane on the acoustic index on the basis of meeting the waterproofing requirements.
  • the waterproof film is attached to the smart electronic device casing through the double-sided tape, and the microphone component is mounted on the casing with the waterproof film attached, so that the microphone component is closely attached to the waterproof film on the mating surface, and the waterproof film is squeezed. Pressed between the housing and the microphone assembly for audio sealing and waterproofing. Since the waterproof membrane requires vibration, the waterproof membrane is generally made thin and light, and is extremely sensitive to pressure. Once it is slightly pressed, the acoustic performance changes greatly. The microphone assembly and the housing squeezing the waterproof membrane, and the squeezing force fluctuates greatly, causing the acoustic performance of the waterproof membrane to mutate and the consistency is deteriorated, thereby affecting the audio experience.
  • the present application provides a microphone assembly and an intelligent electronic device for solving the problem that the waterproof film of the prior art is squeezed by the microphone assembly or the housing, resulting in variation of the acoustic performance of the waterproof film, and the consistency is deteriorated, thereby affecting The problem with the audio experience.
  • an embodiment of the present application provides a microphone assembly that is mounted in a housing of a smart electronic device, the microphone assembly including a microphone unit, a bracket member, and a waterproof membrane.
  • a microphone unit for receiving sound waves
  • the bracket member is configured to be fixed in the housing, the bracket member is provided with a receiving cavity, the microphone unit is received in the receiving cavity, and the outer surface of the bracket member is further provided with a groove, the concave a slot communicating to the receiving cavity;
  • the waterproof film is housed in the groove, and sound waves from the outside cause the waterproof film to vibrate, and the waterproof film radiates sound waves into the holder member and is received by the microphone unit.
  • the microphone assembly When the microphone assembly is assembled into the casing and in normal use, the microphone unit, the bracket member and the like do not squeezing the waterproof membrane. Under the premise of ensuring good audio sealing and waterproof effect, the waterproof membrane maintains good audio characteristics and Consistency improves the audio experience of the product.
  • the waterproof membrane comprises a fixing ring and a mesh membrane, the fixing ring fixing an edge of the mesh membrane, and is used for stretching and unfolding the mesh membrane, wherein the groove is provided with a groove The bottom surface is attached to the bottom surface of the groove.
  • the waterproof film is firmly fixed, and on the other hand, there is no gap between the waterproof film and the mating surface of the bottom surface of the groove, thereby preventing water from entering the first through hole from the waterproof film and the bottom surface of the groove to the accommodating cavity.
  • the microphone unit includes a top surface facing the waterproof membrane, the top surface contacting an inner surface of the accommodating cavity such that there is no gap between the microphone unit and an inner surface of the accommodating cavity, The sound wave is prevented from entering the accommodating cavity and leaking from between the microphone unit and the accommodating cavity, thereby improving the effect of the audio seal.
  • the top surface is provided with a receiving hole that communicates with the inside of the microphone unit
  • the bracket member is provided with a first through hole
  • the first through hole communicates with the groove and the receiving a cavity
  • the receiving hole is opposite to the first through hole
  • the size of the receiving hole is smaller than the size of the first through hole, which is beneficial to reducing loss when sound waves are radiated from the receiving hole to the inside of the microphone unit, Reduce other noises entering the receiving hole.
  • the microphone assembly further includes a flexible circuit board including an interconnecting connecting portion and an extended portion, the connecting portion being received in the receiving cavity, and the connecting portion
  • the microphone unit is fixedly coupled, the extension being located outside the receiving chamber, the extension being for electrically connecting to a signal processing device of the intelligent electronic device.
  • the flexible circuit board is flexible and bendable, which not only satisfies the electrical connection requirements of the microphone unit to the signal processing device, but also facilitates the spatial arrangement inside the housing.
  • the embodiment of the present application further provides an intelligent electronic device, including a housing and the microphone assembly according to any one of the preceding claims, wherein the housing is provided with a second through hole, and the second through hole runs through the a side wall of the housing, the microphone assembly is fixed in the housing, and the waterproof membrane is opposite to the second through hole, and sound waves from the outside pass through the second through hole to the waterproof film.
  • the microphone assembly is fixed in the housing, and the waterproof membrane isolates the inside and outside of the housing at the second through hole, and the inside of the housing is waterproof and sealed, and the housing does not press the waterproof membrane, thereby not affecting the audio characteristics and consistency of the waterproof membrane.
  • a limiting plate is disposed in the housing, and the limiting plate is integrally connected with the sidewall to form a limiting slot, and the microphone component is received in the limiting slot, and The outer surface of the microphone assembly contacts the side wall.
  • the limit slot stabilizes the fixed microphone assembly and allows the outer surface of the microphone assembly to fit against the side wall of the housing for improved waterproof and audio sealing.
  • the smart electronic device further includes a sealant, the sealant is connected to the sidewall and the limiting plate, and the sealant is used for the microphone unit, the bracket member and The waterproof membrane is enclosed in the limiting slot to provide waterproof and audio sealing effects.
  • the microphone assembly further includes a flexible circuit board including an interconnecting connecting portion and an extended portion, the connecting portion being received in the receiving cavity, and the connecting portion
  • the microphone unit is fixedly connected, and the extension is located outside the limit slot, and the extension is for electrically connecting to a signal processing device of the intelligent electronic device.
  • the flexible circuit board extends out of the encapsulant to electrically connect the microphone unit to the signal processing device, and the flexible circuit board is flexible and bendable to facilitate the spatial arrangement of the interior of the housing.
  • an embodiment of the present application further provides an intelligent electronic device, including a microphone component, a housing, and a waterproof film.
  • a microphone assembly for receiving sound waves
  • the microphone assembly is fixed in the housing, the sidewall of the housing is provided with a second through hole, the microphone assembly is opposite to the second through hole, and is connected to the second through hole Outside the casing;
  • the waterproof film is opposite to the second through hole, and a side of the outer wall surface of the side wall is provided with a groove, and the waterproof film is completely accommodated in the groove, and sound waves from the outside cause the waterproof film to vibrate
  • the waterproof film radiates sound waves to the microphone assembly.
  • the microphone assembly When the microphone assembly is assembled into the casing and in normal use, the microphone unit, the bracket member and the like do not squeezing the waterproof membrane. Under the premise of ensuring good audio sealing and waterproof effect, the waterproof membrane maintains good audio characteristics and Consistent sexuality enhances the audio experience of the product.
  • the sidewall further includes an inner wall surface opposite to the outer wall surface, and the microphone assembly contacts the inner wall surface so that there is no gap between the mating surface of the bracket member and the housing, which is waterproof and The effect of the audio seal.
  • the waterproofing membrane comprises a fixing ring and a mesh film, the fixing ring fixing an edge of the mesh film, and for stretching and unfolding the mesh film, the groove comprising a groove bottom surface
  • the fixing ring is adhered to the bottom surface of the groove by a double-sided tape.
  • the waterproof film is firmly fixed, and on the other hand, there is no gap between the waterproof film and the mating surface of the bottom surface of the groove, thereby preventing water from entering the first through hole from the waterproof film and the bottom surface of the groove to the accommodating cavity.
  • the smart electronic device further includes a decorative sheet, the decorative sheet is fixed on the sidewall and covers the waterproof membrane, and the waterproof membrane has a thickness not greater than the bottom surface of the groove and the The vertical distance between the decorative pieces.
  • the decorative sheet protects the waterproof membrane from smashing the waterproof membrane or depositing dust on the screen membrane to block the screen membrane. Since the waterproof membrane does not contact the decorative sheet, the waterproof membrane is not squeezed by the decorative sheet or the casing, and the waterproof membrane is expressed. Good audio characteristics and consistency.
  • the microphone assembly includes a microphone unit, a bracket member, and a flexible circuit board, the bracket member is fixed in the housing, and the flexible circuit board includes a connecting portion and an extension portion which are integrally connected.
  • the microphone unit is fixedly connected to the connecting segment and is commonly received in the bracket member, and the extension is located outside the bracket member for electrically connecting to the signal processing device of the intelligent electronic device.
  • the microphone component receives the sound signal, converts the sound information into an electrical signal, and then electrically connects to the signal processing device through the flexible circuit board to implement the audio function of the intelligent electronic device.
  • the bracket member is an elastic material, so that the bracket member is pressed tightly to fit the inner wall surface to prevent sound waves from leaking from between the bracket member and the housing, thereby improving the audio sealing effect.
  • the waterproof membrane separates the microphone unit in the bracket member from the outside
  • the bracket member or the housing is provided with a groove
  • the waterproof film is restrained and stably fixed by the groove
  • the microphone assembly is assembled.
  • the thickness of the waterproof membrane is not greater than the depth of the groove, and there is a gap between the waterproof membrane and the housing after assembly of the microphone assembly.
  • the housing does not exert a pressing force on the waterproof film.
  • the waterproof film maintains good audio characteristics and consistency, and enhances the audio experience of the product.
  • FIG. 1 is a schematic diagram of an intelligent electronic device according to Embodiment 1 of the present application.
  • FIGS. 2 to 4 are schematic diagrams of a microphone assembly according to Embodiment 1 of the present application.
  • FIG. 5 is a schematic diagram of a microphone unit according to Embodiment 1 of the present application.
  • FIG. 6 is a schematic view of a bracket member according to Embodiment 1 of the present application.
  • FIG. 7 is a schematic diagram of a bracket member and a microphone unit according to Embodiment 1 of the present application.
  • FIG. 8 is a schematic view showing the cooperation of the bracket member and the waterproof film according to the first embodiment of the present application.
  • FIG. 9 is a schematic view of a waterproof film according to Embodiment 1 of the present application.
  • FIG. 10 is a schematic view showing the cooperation of the bracket member, the waterproof membrane and the housing according to the first embodiment of the present application.
  • FIG. 11 is a schematic diagram of sound wave propagation of an intelligent electronic device according to Embodiment 1 of the present application.
  • FIG. 12 is a schematic view of a bracket member according to Embodiment 1 of the present application.
  • FIG. 13 is a schematic diagram of a microphone assembly according to Embodiment 1 of the present application.
  • FIG. 14 is a schematic diagram of a housing according to Embodiment 1 of the present application.
  • FIG. 15 is a schematic diagram of assembly of a microphone assembly and a housing according to Embodiment 1 of the present application.
  • FIG. 16 is a schematic diagram of a housing according to Embodiment 1 of the present application.
  • FIG. 17 to FIG. 20 are schematic diagrams showing partial structural assembly of an intelligent electronic device according to Embodiment 1 of the present application.
  • FIG. 21 to FIG. 26 are schematic diagrams showing the steps of assembling an intelligent electronic device according to Embodiment 1 of the present application.
  • 27 to 29 are schematic diagrams of an intelligent electronic device according to Embodiment 2 of the present application.
  • FIG. 30 is a schematic diagram of a microphone assembly according to Embodiment 2 of the present application.
  • FIG. 32 is a schematic diagram of a housing provided in Embodiment 2 of the present application.
  • FIG. 33 is a schematic diagram of assembly of a microphone assembly and a housing according to Embodiment 2 of the present application.
  • FIG. 34 to FIG. 35 are schematic diagrams showing the assembly of a housing and a waterproof film according to Embodiment 2 of the present application.
  • FIG. 36 is a schematic structural diagram of partial structure assembly of an intelligent electronic device according to Embodiment 2 of the present application.
  • 37 is a schematic view showing the assembly of the decorative sheet provided in the second embodiment of the present application.
  • FIG. 38 is a schematic view of a decorative sheet provided in Embodiment 2 of the present application.
  • FIG. 39 is a schematic diagram of sound wave propagation of an intelligent electronic device according to Embodiment 2 of the present application.
  • FIG. 40 is a schematic diagram of partial structural assembly of an intelligent electronic device according to Embodiment 2 of the present application.
  • Figure 41 is a schematic view of a housing provided in Embodiment 2 of the present application.
  • FIG. 42 to FIG. 47 are schematic diagrams showing the steps of assembling an intelligent electronic device according to Embodiment 2 of the present application.
  • a microphone assembly 20 provided in Embodiment 1 of the present application is installed in a casing 10 of an intelligent electronic device 100 for receiving external sound waves, and converting the sound signals into electrical signals for transmission to a signal processing device and the like.
  • the signal processing device is an electronic device such as a control chip disposed on the main board.
  • the microphone component 20 can be used to receive sound information sent by the user, such as the language of the user, etc., thereby implementing functions such as a call or human-computer interaction of the smart electronic device 100, and the microphone component 20 can also be used in a specific context. The environment sound information is received for analysis and the like.
  • the smart electronic device 100 can be a smart wearable device, such as a smart wristband, smart glasses, etc. In other embodiments, the smart electronic device 100 can also be a mobile terminal, such as a mobile phone, a tablet computer, a notebook computer, or the like.
  • the microphone assembly 20 is housed in the housing 10.
  • the housing 10 protects the microphone assembly 20.
  • the housing 10 isolates the microphone assembly 20 and other electronic components from the external environment outside the housing 10, specifically for isolating the gray layer. Environmental factors such as water, which may cause damage to the microphone assembly 20 and other electronic components.
  • the microphone assembly 20 includes a microphone unit 22, a bracket member 24, and a waterproof membrane 26.
  • the bracket member 24 is provided with a receiving cavity 242.
  • the microphone unit 22 is received in the receiving cavity 242.
  • the outer surface 24a of the bracket member 24 is further provided with a recess 244 that communicates with the receiving cavity 242.
  • the waterproof membrane 26 is received in the recess.
  • the bracket member 24 is for fixing within the housing 10 to secure the microphone assembly 20 within the housing 10.
  • the microphone unit 22 is used to receive sound waves.
  • the microphone unit 22 is a device for converting a sound signal into an electrical signal.
  • the microphone unit 22 The unit base 222, the unit housing 224, the electronic device and the diaphragm, the unit housing 224 is fixedly connected to the unit base 222, and the electronic device and the diaphragm are received in the unit housing 224 and interconnected with the unit base 222.
  • the unit casing 224 In the formed casing, the unit casing 224 is provided with a receiving hole 226 which communicates with the inside of the unit casing 224.
  • the sound waves transmitted from the outside to the microphone unit 22 convert the vibration of the air into the vibration of the diaphragm, that is, the diaphragm completes the operation of receiving the sound signal, and the electronic device converts the vibration of the diaphragm into an electrical signal with sound information.
  • the electronic device is electrically coupled to the unit base 222, which is electrically coupled to the signal processing device to effect delivery of the electrical signal containing the sound information by the electronic device to the signal processing device.
  • the outer side surface 222a of the unit base 222 is provided with a pad 228 for soldering with the flexible circuit board 28 or the conductive leads to achieve electrical connection.
  • the bracket member 24 is for fixing in the housing 10.
  • the bracket member 24 is provided with a receiving cavity 242.
  • the receiving cavity 242 is a cavity extending inwardly from one end of the bracket member 24, and the receiving cavity 242 communicates with the outside through the opening.
  • the microphone unit 22 is received in the receiving cavity 242 .
  • the microphone unit 22 is inserted into the accommodating cavity 242 through the opening of the accommodating cavity 242, so that the microphone unit 22 is entirely housed in the accommodating cavity 242 as a whole. As shown in FIG.
  • the opening of the bracket member 24 is provided with a chamfer 242a for preventing the edge of the opening of the microphone assembly 20 from being sharp and easy to scratch the operator's fingers during assembly. It is advantageous to quickly insert the microphone unit 22 into the accommodating chamber 242 from the opening.
  • the inner shape of the receiving cavity 242 is consistent with the contour shape of the microphone unit 22, which facilitates the close fitting of the interior of the receiving cavity 242 with the microphone unit 22.
  • the receiving cavity 242 has a cross section of T. The type, the larger portion of the T-shaped receiving cavity 242 is for inserting the unit base 222, and the smaller portion for inserting the unit housing 224.
  • the outer surface 24 a of the bracket member 24 is further provided with a recess 244 , and the recess 244 is connected to the receiving cavity 242 .
  • the recess 244 is disposed on the bracket member 24 for conforming to the outer surface 24a of the housing 10.
  • the bracket member 24 is further provided with a first through hole 246.
  • the first through hole 246 communicates with the groove 244 and the receiving cavity 242.
  • the groove 244 is provided with a groove bottom surface 244a.
  • the first through hole 246 communicates with the bottom surface of the groove. 244a is between the inner surface 244b of the bracket member 24.
  • the outer surface 24a is a surface of the bracket member 24 facing the outer side of the bracket member 24
  • the inner surface 244b is a surface of the bracket member 24 opposite to the outer surface 24a
  • the inner surface 244b is also a wall surface of the receiving cavity 242.
  • the waterproof membrane 26 is completely received in the recess 244 .
  • the waterproof membrane 26 is attached and fixed to the groove bottom surface 244 a .
  • the waterproof membrane 26 passes through both sides.
  • the adhesive surface of the groove is 244a, and the double-sided tape functions to firmly fix the waterproof membrane 26 on the one hand, and has no gap between the mating surface of the waterproof membrane 26 and the groove bottom surface 244a, thereby preventing water from passing through the waterproof membrane 26 and the groove.
  • the gap between the bottom surfaces 244a enters the first through holes 246 to the receiving cavity 242.
  • the thickness of the waterproof film 26 is not greater than the depth of the groove 244.
  • the waterproof membrane 26 includes a first end surface 26 a and a second end surface 26 b opposite to each other.
  • the first end surface 26 a is for fitting the groove bottom surface 244 a to fix the waterproof membrane 26 in the groove 244 .
  • the second end face 26b faces the housing 10. 10, when the thickness of the waterproof membrane 26 is less than the depth of the recess 244, the second end surface 26b does not contact the housing 10, that is, there is a gap between the second end surface 26b and the housing 10, and the second end surface 26b is located at the bracket member 24.
  • the waterproof film 26 is entirely housed in the recess 244.
  • the second end face 26b does not contact the housing 10 and is inevitably not pressed by the housing 10, and the waterproof film 26 exhibits good audio characteristics and uniformity without being subjected to a pressing force.
  • the waterproof membrane 26 in the present embodiment, sound waves from the outside cause the waterproof membrane 26 to vibrate, and the waterproof membrane 26 radiates sound waves into the bracket member 24 and is received by the microphone unit 22. Specifically, the sound waves are received by the microphone unit 22. Diaphragm.
  • the waterproof membrane 26 functions as an acoustic diaphragm. In this embodiment, the thickness of the waterproof membrane 26 is smaller than the depth of the recess 244, and the waterproof membrane 26 is concave. There is sufficient space in the slot 244 for vibration to reduce the effect of the waterproof membrane 26 on the sound quality of the sound.
  • the waterproof membrane 26 separates the microphone unit 22 in the bracket member 24 from the outside, and the recess 244 is disposed on the bracket member 24.
  • the waterproof membrane 26 is fixed and stably fixed by the recess 244, and the microphone assembly 20 is assembled to During the process in the housing 10 and during normal use, the microphone unit 22, the bracket member 24, and the like do not press the waterproof membrane 26, the thickness of the waterproof membrane 26 is not greater than the depth of the recess 244, and the waterproof assembly 26 of the microphone assembly 20 is assembled. There is a gap between the casing 10 and the casing 10, and the casing 10 does not exert a pressing force on the waterproof membrane 26.
  • the waterproof membrane 26 maintains good audio characteristics and consistency under the premise of ensuring good audio sealing and waterproofing effect, and improves the product. Audio experience.
  • the waterproof membrane 26 includes a fixing ring 262 and a mesh membrane 264.
  • the fixing ring 262 fixes the edge of the mesh membrane 264 and is used for stretching and unfolding the mesh membrane 264, the fixing ring. 262 is attached to the groove bottom surface 244a by a double-sided tape.
  • the fixing ring 262 is a ring, and when the ring is attached to the groove bottom surface 244a, the force in each direction of the ring is balanced, which is advantageous for stably fixing the waterproof film 26 in the groove 244.
  • the ring has a uniform tensile force to the mesh film 264 in all directions, which is advantageous for unfolding and leveling the mesh film 264, and there is no phenomenon that the mesh film 264 is unbalanced in one direction.
  • the waterproof film 26 is opposite to the first through hole 246.
  • the central axis of the waterproof film 26 coincides with the central axis of the first through hole 246, which is also understood to be the mesh film 264 and the first through hole. 246 is right, in other words, the central axis of the screen film 264 coincides with the central axis of the first through hole 246.
  • the waterproof membrane 26 is directly opposite to the first through hole 246 to facilitate the waterproof membrane 26 to radiate its own vibration through the first through hole 246 to the inside of the bracket member 24, reducing the loss of sound waves.
  • the size of the screen film 264 is larger than the size of the first through hole 246.
  • the vertical projection of the screen film 264 on the bottom surface 244a of the groove covers the first through hole 246, which is advantageous for vibrating the screen film 264.
  • the radiation is completely radiated into the first through hole 246, that is, the loss when the sound wave propagates from the waterproof film 26 to the first through hole 246 is reduced, while other noises entering the first through hole 246 are reduced. Referring to FIG.
  • connection between the groove bottom surface 244a and the first through hole 246 is provided with a chamfer 244c, and on the one hand, the chamfer is used to avoid the edge of the first through hole 246 of the microphone assembly 20 during assembly.
  • the sharp and easy to scratch the operator's finger forms a transition of the waterproof membrane 26 to the first through hole 246, reducing the variation or loss of sound waves from the waterproof membrane 26 to the first through hole 246.
  • the contour shape of the groove 244 is identical to the shape of the waterproof film 26.
  • the recess 244 is provided with a circular receiving area 2442 and an active area 2444 located at two sides of the receiving area 2442, and the waterproof membrane 26 is placed in the receiving area.
  • the active area 2444 communicates with the receiving area 2442 and the outside, and the active area 2444 is used to facilitate the operator to extend into the finger to place the waterproof membrane 26 and the recess 244 and adjust the position of the recess 244.
  • the size of the receiving area 2442 is larger than the size of the waterproof membrane 26, so that the waterproof membrane 26 has a certain movable space in the groove 244, on the one hand, it is convenient to adjust the position of the waterproof membrane 26 during assembly, and on the other hand
  • the groove 244 is prevented from squeezing the waterproof film 26 to affect the audio characteristics and uniformity of the waterproof film 26.
  • the microphone unit 22 includes a top surface 22a facing the recess 244, and the top surface 22a contacts the inner surface 244b of the receiving cavity 242. Specifically, the top surface 22a contacts the inner surface 244b so that there is no gap between the microphone unit 22 and the inner surface 244b of the receiving cavity 242, so as to prevent sound waves from entering the receiving cavity 242 from the first through hole 246 and from the microphone unit 22 and the receiving cavity 242. Between the leakage, the effect of the audio seal is improved, and the sound waves entering the accommodating cavity 242 from the first through hole 246 are all propagated to the microphone unit 22, and the specific sound waves all enter the receiving hole 226, thereby improving the audio experience of the product.
  • the top surface 22a and the inner surface 244b are zero-gated to reduce sound waves leaking from between the top surface 22a and the inner surface 244b, further improving the effect of the audio seal and improving the audio experience of the product.
  • the receiving hole 226 is disposed on the top surface 22a and communicates with the inside of the microphone unit 22, and the receiving hole 226 faces the first through hole 246, in other words, the central axis of the receiving hole 226 and the The central axes of a through hole 246 coincide.
  • the receiving hole 226 and the first through hole 246 are opposite to each other to facilitate the emission of sound waves from the receiving hole 226 to the inside of the microphone unit 22, thereby reducing the loss of sound waves.
  • the size of the receiving hole 226 is smaller than the size of the first through hole 246, that is, the vertical projection of the receiving hole 226 into the inner surface 244b falls within the range of the first through hole 246, which is advantageous to pass through the first pass.
  • the sound waves of the holes 246 are completely radiated into the receiving holes 226, i.e., reduce the loss of sound waves propagating from the first through holes 246 to the receiving holes 226 while reducing other noises entering the receiving holes 226.
  • the central axis of the waterproof membrane 26, the central axis of the first through hole 246, and the central axis of the receiving hole 226 are coincident, thereby providing a space from the waterproof membrane 26 to the inside of the microphone unit 22.
  • the shortest propagation path reduces the loss of sound waves.
  • the bracket member 24 is a rigid material bracket, such as a hard rubber bracket.
  • the structural member 24 of the rigid material has a stable structural shape and can provide better protection to the waterproof membrane 26, thereby maintaining a good audio of the waterproof membrane 26.
  • the connection between the bracket member 24 of the rigid material and the mating surface of the housing 10, the mating surface of the rigid material of the bracket member 24 and the microphone unit 22 is tightly connected, thereby improving the waterproof effect and the audio sealing effect.
  • the microphone assembly 20 further includes a flexible circuit board 28.
  • the flexible circuit board 28 includes a connecting portion 282 and an extension portion 284 which are integrally connected, and the connecting portion 282 is received in The receiving portion 282 is fixedly connected to the microphone unit 22, and the extension portion 284 is located outside the receiving chamber 242 for electrically connecting to the signal processing device of the smart electronic device 100.
  • the connecting section 282 and the extension section 284 are relatively bent to meet the internal space requirements of the housing 10 and the positional arrangement requirements between the electronic components.
  • the connecting section 282 is soldered to the unitary base 222 by surface mount technology and the extension section 284 is coupled to the signal processing apparatus via a connector to electrically connect the microphone unit 22 to the signal processing apparatus.
  • the flexible circuit board 28 is flexible and bendable, which not only satisfies the requirements of electrical connection, but also facilitates the spatial arrangement inside the casing 10.
  • the embodiment of the present application further provides an intelligent electronic device 100.
  • the smart electronic device 100 of the first embodiment of the present application includes a housing 10 and a microphone assembly 20 provided by the first embodiment of the present application.
  • the microphone assembly 20 is fixed to the microphone assembly 20 .
  • the housing 10 includes an upper housing 10 a and a lower housing 10 b .
  • the upper housing 10 a is closed on the lower housing 10 b to form a closed housing 10 structure.
  • the microphone assembly 20 is received.
  • the inside of the casing 10 is composed of an upper casing 10a and a lower casing 10b.
  • the microphone assembly 20 is fixed in the lower casing 10b.
  • the microphone assembly 20 may also be fixed in the upper casing 10a.
  • the smart electronic device 100 provided by the embodiment of the present application is exemplified by the example that the microphone component 20 is fixed to the lower casing 10b.
  • connection relationship with the housing 10 can be understood as the relationship between the lower housing 10b and the connection relationship between the microphone assembly 20 and the lower housing 10b.
  • the microphone assembly 20 can also be fixed in the upper housing 10a, and is not performed here. Narration.
  • the housing 10 is provided with a second through hole 12 , and the second through hole 12 extends through the sidewall 14 of the housing 10 .
  • the waterproof membrane 26 faces the second through hole 12 .
  • the sound wave from the outside propagates through the second through hole 12 to the waterproof film 26, in other words, the central axis of the waterproof film 26 coincides with the central axis of the second through hole 12, which is advantageous for reducing the sound wave entering the second through hole 12 and transmitting it to the waterproof Loss of film 26.
  • the central axis of the second through hole 12, the central axis of the waterproof membrane 26, the central axis of the first through hole 246, and the central axis of the receiving hole 226 are coincident, thereby providing a slave housing.
  • the side wall 14 of the casing 10 includes an opposite inner wall surface 14a and an outer wall surface 14b, and the second through hole 12 communicates with the inner wall surface 14a and the outer wall surface 14b.
  • the size of the waterproof film 26 is larger than the size of the second through hole 12, that is, the vertical projection of the waterproof film 26 on the inner wall surface 14a covers the second through hole 12, which is favorable for entering through the second through hole 12.
  • the sound waves in the casing 10 are all transmitted to the waterproof membrane 26, reducing the loss of sound waves.
  • a limiting plate 16 is disposed in the housing 10 , and the limiting plate 16 and the sidewall 14 are integrally connected to form a limiting slot 160.
  • the number of the limiting plates 16 is For a plurality of, the plurality of limiting plates 16 are connected end to end and connected with the side wall 14 of the casing 10 to form a casing having an opening, that is, the limiting slot 160.
  • the microphone assembly 20 is received in the limiting slot 160 .
  • the microphone component 20 is inserted into the limiting slot 160 from the opening of the limiting slot 160 and completely received in the limiting slot 160 .
  • the limit slot 160 functions as a fixed microphone assembly 20.
  • the outer surface 24a of the microphone assembly 20 contacts the side wall 14.
  • the microphone assembly 20 is provided with the outer surface 24a of the recess 244 contacting the inner wall surface 14a of the side wall 14, so that there is no gap between the mating surface of the bracket member 24 and the housing 10, and on the one hand, waterproofing, that is, preventing After the water enters the second through hole 12, it leaks from the mating surface of the bracket member 24 and the housing 10 and enters the housing 10.
  • the effect of the audio seal is achieved, that is, the sound wave is prevented from entering the second through hole 12 and then from the bracket.
  • the fitting surface of the piece 24 and the housing 10 leaks out and is lost.
  • the bracket member 24 is a rigid material bracket, such as a hard rubber bracket, and the rigid material bracket member 24 is closely connected with the mating surface of the housing 10 to improve the waterproof effect and the audio sealing effect.
  • the smart electronic device 100 further includes a sealant 18, the sealant 18 is connected to the sidewall 14 and the limiting plate 16, and the sealant 18 is used for the microphone unit 22 and the bracket member 24. And the waterproof membrane 26 is enclosed in the limiting slot 160.
  • the encapsulant 18 is formed after the microphone assembly 20 is inserted into the limiting slot 160 to enclose the microphone assembly 20 in the limiting slot 160.
  • the sealant 18 is filled in the opening of the limiting slot 160, so that the limiting plate 16, the side wall 14 of the housing 10 and the sealant 18 are formed except the case, and the second through hole 12 is a box body and The only path to the outside world connection.
  • the encapsulant 18 isolates the microphone assembly 20 from the interior of the housing 10 while providing a waterproof and audio seal.
  • the mating surface of the side wall 14 of the housing 10 and the bracket member 24 is due to manufacturing and component manufacturing errors. There may be a slight gap between the bracket, the mating surface of the bracket member 24 and the microphone unit 22, and the bracket and the limiting plate 16.
  • the seal 18 blocks the inside of the limiting slot 160 and the outside of the limiting slot 160. , which further improves the waterproof and audio seal effect.
  • the extension 284 is located outside the limit slot 160 for electrically connecting to the signal processing device of the smart electronic device 100. Specifically, the extension 284 extends through the sealant 18 to the outside of the limit slot 160, thereby electrically connecting the microphone unit 22 inside the limit slot 160 to the signal processing device to complete signal transmission.
  • the assembly process of the smart electronic device 100 can be divided into the following steps:
  • the waterproof film 26 is adhered to the groove bottom surface 244a of the recess 244 of the bracket member 24 by a double-sided tape, thereby forming the microphone assembly 20 (refer to FIG. 23).
  • the waterproof membrane 26 isolates the microphone unit 22 from the outside. During assembly of the smart electronic device 100, the waterproof membrane 26 is not squeezed by the microphone unit 22, the bracket member 24 or the housing 10, and the waterproof membrane 26 maintains good audio. Features and consistency that enhance the audio experience of the product.
  • the smart electronic device 100 provided in the second embodiment of the present application includes a microphone assembly 20, a housing 10, and a waterproof membrane 26.
  • the microphone assembly 20 is fixed in the housing 10, and the sidewall 14 of the housing 10 is provided with a second through hole 12, and the microphone assembly 20 faces the second through hole 12, and communicates to the housing through the second through hole 12. 10 outside.
  • a side surface of the outer wall surface 14b of the side wall 14 is provided with a groove 244.
  • the waterproof film 26 faces the second through hole 12 and is received in the groove 244.
  • the waterproof film 26 separates the inside and the outside of the casing 10.
  • the microphone assembly 20 is for receiving sound waves. Specifically, referring to FIG. 30 and FIG.
  • the microphone assembly 20 includes a microphone unit 22, a bracket member 24, and a flexible circuit board 28.
  • the bracket member 24 is fixed in the housing 10, and the flexible circuit board 28 includes an interconnected connection.
  • the segment 282 and the extension 284 are fixedly connected to the connecting portion 282 and are commonly received in the bracket member 24.
  • the extension portion 284 is located outside the bracket member 24 for electrical connection to the signal processing device of the smart electronic device 100.
  • the bracket member 24 is a box structure, and the connecting portion 282 of the flexible circuit board 28 is attached to the bracket member 24 to form a complete box.
  • the bracket member 24 is provided with a first through hole 246. In conjunction with FIG. 30, the first through hole 246 is the only path in which the inside of the bracket member 24 communicates with the outside.
  • the top surface 22a of the microphone unit 22 contacts the inner surface 244b of the bracket member 24, and the top surface 22a contacts such that there is no gap between the microphone unit 22 and the inner surface 244b of the receiving chamber 242.
  • the sound wave is prevented from leaking from the first through hole 246 into the accommodating cavity 242 and leaked from between the microphone unit 22 and the accommodating cavity 242, thereby improving the effect of the audio seal.
  • the sound waves entering the accommodating cavity 242 from the first through hole 246 are all propagated to the microphone single.
  • Body 22, specifically to Figure 30, top surface 22a of microphone unit 22 is provided with receiving apertures 226, all of which enter the receiving apertures 226, enhancing the audio experience of the product.
  • the receiving hole 226 faces the first through hole 246, in other words, the central axis of the receiving hole 226 coincides with the central axis of the first through hole 246.
  • the receiving hole 226 and the first through hole 246 are opposite to each other to facilitate the emission of sound waves from the receiving hole 226 to the inside of the microphone unit 22, thereby reducing the loss of sound waves.
  • the size of the receiving hole 226 is smaller than the size of the first through hole 246, that is, the vertical projection of the receiving hole 226 into the inner surface 244b falls within the range of the first through hole 246, which is advantageous to pass through the first pass.
  • the sound waves of the holes 246 are completely radiated into the receiving holes 226, i.e., reduce the loss of sound waves propagating from the first through holes 246 to the receiving holes 226 while reducing other noises entering the receiving holes 226.
  • the microphone assembly 20 is fixed in the housing 10.
  • the sidewall 14 of the housing 10 is provided with a second through hole 12, and the microphone assembly 20 faces the second through hole 12, and It is communicated to the outside of the casing 10 through the second through hole 12.
  • the second through hole 12 penetrates through the side wall 14 of the housing 10, specifically to FIG. 33, the central axis of the second through hole 12, the central axis of the first through hole 246, and the central axis of the receiving hole 226 are coincident, thereby providing A shortest propagation path from the outside of the housing 10 to the interior of the microphone unit 22 reduces acoustic wave losses.
  • the side wall 14 of the casing 10 includes an opposite inner wall surface 14a and an outer wall surface 14b, and the second through hole 12 communicates with the inner wall surface 14a and the outer wall surface 14b.
  • the waterproof membrane 26 faces the second through hole 12, and the side of the outer wall surface 14b of the side wall 14 is provided with a groove 244.
  • the waterproof membrane 26 is received in the groove 244, and the sound wave from the outside is received.
  • the waterproof membrane 26 is caused to vibrate, and the waterproof membrane 26 radiates sound waves to the microphone assembly 20.
  • the recess 244 is formed on the housing 10 from the side of the outer wall surface 14b of the side wall 14, and the recess 244 is communicated to the inside of the housing 10 through the second through hole 12.
  • the groove 244 is provided with a groove bottom surface 244a, and the waterproof film 26 is attached and fixed to the groove bottom surface 244a.
  • the waterproof film 26 is adhered to the groove bottom surface 244a through the double-sided tape.
  • the surface glue functions to firmly fix the waterproof membrane 26, and
  • the waterproof film 26 faces the second through hole 12, in other words, the central axis of the waterproof film 26 coincides with the central axis of the second through hole 12, which is advantageous for reducing the passage of sound waves into the second through hole 12 and then transmitting to the waterproof film. 26 loss.
  • the central axis of the waterproof membrane 26, the central axis of the second through hole 12, the central axis of the first through hole 246, and the central axis of the receiving hole 226 are coincident, thereby providing a slave housing. 10
  • the shortest propagation path from the outside to the inside of the microphone unit 22 reduces the loss of sound waves.
  • the size of the waterproof membrane 26 is larger than the size of the second through hole 12, which is beneficial to transmitting the sound waves generated by the vibration of the waterproof membrane 26 to the inside of the casing 10, thereby reducing the loss of sound waves.
  • the waterproof film 26 is opposite to the first through hole 246.
  • the central axis of the waterproof film 26 coincides with the central axis of the first through hole 246, which can also be understood as the mesh film 264 and the first through hole. 246 is right, in other words, the central axis of the screen film 264 coincides with the central axis of the first through hole 246.
  • the waterproof membrane 26 is directly opposite to the first through hole 246 to facilitate the waterproof membrane 26 to radiate its own vibration through the first through hole 246 to the inside of the bracket member 24, reducing the loss of sound waves. Referring to FIG. 29 and FIG.
  • connection between the outer surface 24a of the bracket member 24 and the first through hole 246 is provided with a chamfer 246c, and on the one hand, the chamfer 246c is used to prevent the microphone assembly 20 from being assembled.
  • the edge of the first through hole 246 is sharp and easy to scratch the operator's finger, and on the other hand, the transition from the second through hole 12 to the first through hole 246 is formed to reduce the propagation of sound waves from the waterproof film 26 to the first through hole 246. Variance or loss.
  • the contour shape of the groove 244 is identical to the shape of the waterproof film 26. Specifically, referring to FIG. 35, when the waterproof membrane 26 is circular, the groove 244 is also circular. In one embodiment, the size of the recess 244 is larger than the size of the waterproof membrane 26, so that the waterproof membrane 26 has a certain movable space in the recess 244, on the one hand, it is convenient to adjust the position of the waterproof membrane 26 during assembly, and on the other hand The groove 244 is prevented from squeezing the waterproof film 26 to affect the audio characteristics and uniformity of the waterproof film 26.
  • the microphone assembly 20 contacts the inner wall surface 14a of the side wall 14 of the housing 10.
  • the outer surface 24a of the bracket member 24 contacts the inner wall surface 14a of the side wall 14, so that there is no gap between the mating surface of the bracket member 24 and the housing 10, and on the other hand, it functions as a waterproof, that is, prevents water from entering the second pass.
  • the hole 12 is leaked from between the mating surface of the bracket member 24 and the housing 10 to enter the housing 10, and on the other hand, the effect of the audio seal is achieved, that is, the sound wave is prevented from entering the second through hole 12 from the bracket member 24 and the housing. 10 mating surfaces leak and lose.
  • the bracket member 24 is an elastic material bracket, such as a soft rubber bracket.
  • the bracket member 24 of the elastic material is compressible, and the joint between the bracket member 24 and the mating surface of the housing 10 is tightly connected, thereby improving the audio sealing effect.
  • the smart electronic device 100 further includes a decorative sheet 30 , and the decorative sheet 30 is fixed on the sidewall 14 and covers the waterproof membrane 26 .
  • the decorative sheet 30 is in the form of a sheet, and the decorative sheet 30 separates the waterproof membrane 26 from the outside, protects the waterproof membrane 26, and prevents the barrier waterproof membrane 26 or dust from depositing on the mesh membrane 264 to block the mesh membrane 264.
  • the decorative sheet 30 is provided with a third through hole 300 penetrating through the decorative sheet 30, and the third through hole 300 communicates the outside with the waterproof membrane 26 for transmitting sound waves to the waterproof membrane 26.
  • the third through hole 300 faces the waterproof film 26, the central axis of the third through hole 300, the central axis of the waterproof membrane 26, the central axis of the second through hole 12, and the center of the first through hole 246.
  • the central axes of the axis and receiving apertures 226 are coincident to provide a shortest propagation path from the exterior of the housing 10 to the interior of the microphone unit 22, reducing acoustic wave losses.
  • the surface of the decorative sheet 30 facing the outside of the housing 10 is flush with the outer wall surface 14b to make the surface of the housing 10 flat and beautiful.
  • the thickness of the waterproof film 26 is not greater than between the groove bottom surface 244a and the decorative sheet 30. vertical distance.
  • the waterproof membrane 26 includes a first end surface 26a and a second end surface 26b.
  • the first end surface 26a is for fitting the groove bottom surface 244a to fix the waterproof membrane 26 in the groove 244, and the second end surface 26b is facing the groove 244. That is, facing the decorative sheet 30, when the thickness of the waterproof film 26 is smaller than the vertical distance between the groove bottom surface 244a and the decorative sheet 30, the second end surface 26b does not contact the decorative sheet 30, that is, there is a gap between the second end surface 26b and the decorative sheet 30.
  • the second end surface 26b is located between the decorative sheet 30 and the groove bottom surface 244a, and the waterproof film 26 is entirely received in the recess 244.
  • the second end face 26b does not contact the decorative sheet 30 and is inevitably not pressed by the decorative sheet 30 or the casing 10, and the waterproof film 26 exhibits good audio characteristics and uniformity without being subjected to a pressing force.
  • the surface of the decorative sheet 30 facing the waterproof membrane 26 is provided with a recess 302.
  • the size of the recess 302 corresponds to the size of the recess 244, and the waterproof membrane 26 is received in the recess 302. Between the groove 244 and the recess 244, there is a gap between the waterproof film 26 and the decorative member to prevent the decorative sheet 30 from squeezing the waterproof film 26.
  • sound waves from the outside cause the waterproof membrane 26 to vibrate, and the waterproof membrane 26 radiates sound waves into the bracket member 24 and is received by the microphone unit 22. Specifically, the sound waves are received by the microphone unit 22. Diaphragm.
  • the waterproof membrane 26 functions as an acoustic diaphragm.
  • the waterproof membrane 26 separates the inner and outer surfaces of the casing 10.
  • the recess 244 is disposed on the casing 10, and the waterproof membrane 26 is restrained and stabilized by the recess 244.
  • the microphone assembly 20 is assembled and assembled into the casing 10 and normal. In use, the microphone unit 22, the bracket member 24, and the like do not contact or squash the waterproof membrane 26, the thickness of the waterproof membrane 26 is not greater than the depth of the recess 244, and the microphone module 20 is assembled between the waterproof membrane 26 and the decorative sheet 30.
  • the gap, the decorative sheet 30 does not exert a pressing force on the waterproof film 26, and the waterproof film 26 maintains good audio characteristics and consistency under the premise of ensuring good audio sealing and waterproofing effect, thereby improving the audio experience of the product.
  • the housing 10 is further provided with a pair of oppositely disposed fixing ears 110.
  • the fixing ears 110 are disposed on the inner wall surface 14a of the side wall 14 of the housing 10, and two fixing ears. 110 are respectively located on two sides of the second through hole 12.
  • a pressing piece 130 is further fixed between the pair of fixing ears 110.
  • the pressing piece 130 is inserted between the pair of fixing ears 110.
  • the pressing piece 130 fixes the microphone assembly 20 to the inside of the housing 10.
  • the combination 39, the pressure of the tablet 130 against the microphone assembly 20 is opposite to the pressure of the side wall 14 of the housing 10 to the microphone assembly 20, thereby securing the microphone assembly 20 within the housing 10.
  • the pressing piece 130 presses the microphone assembly 20 so that the microphone assembly 20 abuts against the inner wall surface 14a of the side wall 14, specifically, the outer surface 24a of the bracket member 24 abuts against the inner wall surface 14a so that the mating surface of the bracket member 24 and the housing 10 There is no gap between them, and the sound wave is prevented from leaking through the second through hole 12 into the casing 10 and leaking from the mating surface of the bracket member 24 and the casing 10, thereby improving the audio sealing effect.
  • the bracket member 24 is an elastic material
  • the bracket member 24 is compressively deformed when the pressing member 130 presses the bracket member 24, so that the bracket member 24 is more closely connected with the casing 10, and the audio sealing effect is improved. Referring to FIG.
  • a spacer 150 is further disposed in the housing 10.
  • the spacer 150 is used to raise the microphone assembly 20, and it can also be understood that the spacer 150 is used to define the position of the microphone assembly 20 such that the first through hole 246 of the microphone assembly 20 faces the second through hole 12 of the housing 10. .
  • the assembly process of the smart electronic device 100 can be divided into the following steps:
  • the microphone assembly 20 is placed inside the lower casing 10b, and the pressing piece 130 is inserted between the pair of fixing ears 110 to fix the microphone assembly 20 (refer to FIG. 44).
  • the waterproof film 26 is adhered to the groove 244 by a double-sided tape (refer to FIG. 45).
  • steps S204 and S205 may also be performed before S201.
  • the waterproof membrane 26 isolates the microphone unit 22 from the outside. During the assembly of the smart electronic device 100, the waterproof membrane 26 is not squeezed by the microphone assembly 20 or the housing 10, and the waterproof membrane 26 maintains good audio characteristics and consistency. Improved the audio experience of the product.

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Abstract

本申请公开了一种麦克风组件，包括麦克风单体、支架件及防水膜，麦克风单体用于接收声波。支架件用于固定于所述壳体内，所述支架件内设有容纳腔，所述麦克风单体收容于所述容纳腔内，所述支架件的外表面还设有凹槽，所述凹槽连通至所述容纳腔。防水膜收容于所述凹槽内，来自外界的声波引起所述防水膜振动，所述防水膜将声波辐射至所述支架件内并由所述麦克风单体接收。本申请还公开了一种智能电子设备。在保证良好的音频密封与防水效果的前提下，防水膜保持良好的音频特性与一致性，提升了产品的音频体验。

Description

麦克风组件及电子设备 技术领域
本申请涉及智能硬件产品技术领域，尤其涉及一种麦克风组件及电子设备。
背景技术
随着智能硬件产品的不断发展，产品对于防水的需求也愈发强烈，特别对于手机、智能穿戴产品，防水逐渐成为产品的必备功能。同时随着产品覆盖的使用场景越来越多，防水的要求也越来越高。目前在有音频功能的智能穿戴产品中，通常会采用防水界面粘接防水膜的方法达到音频设备的防水功能。在防水膜方案中，设备的音频性能和防水要求是互相影响的因素，以麦克风为例，麦克风用于接收声音，麦克风位置同样需要进行防水设计，在防水功能满足的前提下，麦克风对音频性能要求更高。因此，业内不断在探索如何设计麦克风位置的防水膜安装方案，以在满足防水需求的基础上，将防水膜对声学指标的影响降到最低。
现有技术中，防水膜通过双面胶贴合到智能电子设备壳体上，麦克风组件装到贴有防水膜的壳体上，使麦克风组件在配合面上紧贴防水膜，将防水膜挤压于壳体与麦克风组件之间，起到音频密封和防水的作用。由于防水膜需要振动，防水膜一般做得很轻薄，并且对压力极为敏感，一旦轻微受压，声学性能变化会比较大。麦克风组件和壳体挤压防水膜，且挤压力波动较大，导致防水膜的声学性能变异，一致性变差，从而影响音频体验。
申请内容
有鉴于此，本申请提供了一种麦克风组件及智能电子设备，用于解决现有技术中防水膜受到麦克风组件或壳体挤压而导致防水膜的声学性能变异，一致性变差，从而影响音频体验的问题。
第一方面，本申请实施例提供一种麦克风组件，安装于智能电子设备的壳体内，所述麦克风组件包括麦克风单体、支架件和防水膜，
麦克风单体用于接收声波；
支架件用于固定于所述壳体内，所述支架件内设有容纳腔，所述麦克风单体收容于所述容纳腔内，所述支架件的外表面还设有凹槽，所述凹槽连通至所述容纳腔；
防水膜收容于所述凹槽内，来自外界的声波引起所述防水膜振动，所述防水膜将声波辐射至所述支架件内并由所述麦克风单体接收。
麦克风组件在组装至壳体内的过程中及正常使用时，麦克风单体、支架件等不会挤压防水膜，在保证良好的音频密封与防水效果的前提下，防水膜保持良好的音频特性与一致性，提升了产品的音频体验。
一种实施方式中，所述防水膜包括固定环和筛网膜，所述固定环固定所述筛网膜的边缘，并用于拉伸与展开所述筛网膜，所述凹槽内设槽底面，所述固定环粘贴于所述槽底面。一方面防水膜得到牢固的固定，另一方面使防水膜与槽底面的配合面之间没有缝隙，从而避免水从防水膜与槽底面之间进入第一通孔至容纳腔。
一种实施方式中，所述麦克风单体包括面对所述防水膜的顶面，所述顶面接触所述容纳腔的内表面，使麦克风单体与容纳腔的内表面之间没有间隙，避免声波进入容纳腔后从麦克风单体与容纳腔之间漏出，提高音频密封的效果。
一种实施方式中，所述顶面设有连通至所述麦克风单体内部的接收孔，所述支架件设有第一通孔，所述第一通孔连通所述凹槽与所述容纳腔，所述接收孔正对所述第一通孔，且所述接收孔的尺寸小于所述第一通孔的尺寸，有利于降低声波从接收孔辐射至麦克风单体内部时的损耗，同时减小进入接收孔的外界其他杂音。
一种实施方式中，所述麦克风组件还包括柔性电路板，所述柔性电路板包括互连为一体的连接段与延长段，所述连接段收容于所述容纳腔内，且所述连接段固定连接所述麦克风单体，所述延长段位于所述容纳腔外，所述延长段用于电连接至所述智能电子设备的信号处理装置。柔性电路板柔软可弯折，不仅可以满足麦克风单体至信号处理装置的电性连接要求，也有利于壳体内部的空间布置。
第二方面，本申请实施例还提供一种智能电子设备，包括壳体及前述任何一项所述的麦克风组件，所述壳体设有第二通孔，所述第二通孔贯穿所述壳体的侧壁，所述麦克风组件固定于所述壳体内，所述防水膜正对所述第二通孔，来自外界的声波穿过所述第二通孔传播至所述防水膜。麦克风组件固定于壳体内，防水膜在第二通孔处将壳体内外隔离，壳体内部防水密封，同时壳体不挤压防水膜，从而不影响防水膜的音频特性与一致性。
一种实施方式中，所述壳体内设有限位板，所述限位板与所述侧壁连接为一体形成限位插槽，所述麦克风组件收容于所述限位插槽内，且所述麦克风组件的所述外表面接触所述侧壁。限位插槽稳定的固定麦克风组件，并使麦克风组件的外表面紧贴壳体的侧壁，提高防水和音频密封的效果。
一种实施方式中，所述智能电子设备还包括封胶，所述封胶连接所述侧壁及所述限位板，所述封胶用于将所述麦克风单体、所述支架件及所述防水膜封闭于所述限位插槽内，起到防水和音频密封的效果。
一种实施方式中，所述麦克风组件还包括柔性电路板，所述柔性电路板包括互连为一体的连接段与延长段，所述连接段收容于所述容纳腔内，且所述连接段固定连接所述麦克风单体，所述延长段位于所述限位插槽外，所述延长段用于电连接至所述智能电子设备的信号处理装置。柔性电路板伸出封胶以将麦克风单体电连接至信号处理装置，柔性电路板柔软可弯折也有利于壳体内部的空间布置。
第三方面，本申请实施例还提供一种智能电子设备，包括麦克风组件、壳体和防水膜，
麦克风组件用于接收声波；
所述麦克风组件固定于所述壳体内，所述壳体的侧壁设有第二通孔，所述麦克风组件正对所述第二通孔，且通过所述第二通孔连通至所述壳体外；
所述防水膜正对所述第二通孔，所述侧壁的外壁面一侧设有凹槽，所述防水膜完全收容于所述凹槽内，来自外界的声波引起所述防水膜振动，所述防水膜将声波辐射至所述麦克风组件。
麦克风组件在组装至壳体内的过程中及正常使用时，麦克风单体、支架件等不会挤压防水膜，在保证良好的音频密封与防水效果的前提下，防水膜保持良好的音频特性与一致 性，提升了产品的音频体验。
一种实施方式中，所述侧壁还包括与所述外壁面相对的内壁面，所述麦克风组件接触所述内壁面，使支架件与壳体的配合面之间没有间隙，起到防水和音频密封的效果。
一种实施方式中，所述防水膜包括固定环和筛网膜，所述固定环固定所述筛网膜的边缘，并用于拉伸与展开所述筛网膜，所述凹槽包括槽底面，所述固定环通过双面胶粘贴于所述槽底面上。一方面防水膜得到牢固的固定，另一方面使防水膜与槽底面的配合面之间没有缝隙，从而避免水从防水膜与槽底面之间进入第一通孔至容纳腔。
一种实施方式中，所述智能电子设备还包括装饰片，所述装饰片固定于所述侧壁上，并覆盖所述防水膜，所述防水膜的厚度不大于所述槽底面与所述装饰片之间的垂直距离。装饰片保护防水膜，避免磕碰防水膜或有灰尘沉积在筛网膜上而堵塞筛网膜，由于防水膜不接触装饰片，防水膜不会受到装饰片或壳体的挤压，防水膜表现出良好的音频特性和一致性。
一种实施方式中，所述麦克风组件包括麦克风单体、支架件及柔性电路板，所述支架件固定于所述壳体内，所述柔性电路板包括互连为一体的连接段与延长段，所述麦克风单体与所述连接段固定连接，并共同收容于所述支架件内，所述延长段位于所述支架件外，用于电连接至所述智能电子设备的信号处理装置。麦克风组件接收声音信号，将声音信息转换为电信号后通过柔性电路板电连接至信号处理装置，实现智能电子设备的音频功能。
一种实施方式中，所述支架件为弹性材料，以使所述支架件受挤压后紧密的贴合所述内壁面，避免声波从支架件与壳体之间漏出，提高音频密封效果。
本申请的有益效果如下：防水膜将支架件内的麦克风单体与外界隔开，支架件或壳体上设有凹槽，通过凹槽对防水膜限位及稳定的固定，麦克风组件在组装至壳体内的过程中及正常使用时，麦克风单体、支架件等不会挤压防水膜，防水膜的厚度不大于凹槽的深度，麦克风组件组装后防水膜与壳体之间存在间隙，壳体也不对防水膜施加挤压力，在保证良好的音频密封与防水效果的前提下，防水膜保持良好的音频特性与一致性，提升了产品的音频体验。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1为本申请实施例一提供的智能电子设备的示意图。
图2-图4为本申请实施例一提供的麦克风组件的示意图。
图5为本申请实施例一提供的麦克风单体的示意图。
图6为本申请实施例一提供的支架件的示意图。
图7为本申请实施例一提供的支架件与麦克风单体配合的示意图。
图8为本申请实施例一提供的支架件与防水膜配合的示意图。
图9为本申请实施例一提供的防水膜的示意图。
图10为本申请实施例一提供的支架件、防水膜及壳体配合的示意图。
图11为本申请实施例一提供的智能电子设备的声波传播示意图。
图12为本申请实施例一提供的支架件的示意图。
图13为本申请实施例一提供的麦克风组件的示意图。
图14为本申请实施例一提供的壳体的示意图。
图15为本申请实施例一提供的麦克风组件与壳体装配示意图。
图16为本申请实施例一提供的壳体的示意图。
图17-图20为本申请实施例一提供的智能电子设备的部分结构装配示意图。
图21-图26为本申请实施例一提供的智能电子设备的组装步骤示意图。
图27-图29为本申请实施例二提供的智能电子设备的示意图。
图30-图31为本申请实施例二提供的麦克风组件的示意图。
图32为本申请实施例二提供的壳体的示意图。
图33为本申请实施例二提供的麦克风组件与壳体装配示意图。
图34-图35为本申请实施例二提供的壳体与防水膜装配的示意图。
图36为本申请实施例二提供的智能电子设备的部分结构装配示意图。
图37为本申请实施例二提供的装饰片的装配示意图。
图38为本申请实施例二提供的装饰片的示意图。
图39为本申请实施例二提供的智能电子设备的声波传播示意图。
图40为本申请实施例二提供的智能电子设备的部分结构装配示意图。
图41为本申请实施例二提供的壳体的示意图。
图42-图47为本申请实施例二提供的智能电子设备的组装步骤示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
请参阅图1，本申请实施例一提供的麦克风组件20安装于智能电子设备100的壳体10内，用于接收外界声波，并将声音信号转换为电信号传递至信号处理装置等进行处理，一种实施方式中，当智能电子设备100为手机时，信号处理装置为设在主板上的电子器件，例如控制芯片。本实施例中，麦克风组件20可以用于接收用户的发出的声音信息，例如用户的语言等，从而实现智能电子设备100的通话或人机互动等功能，麦克风组件20也可以用于在特定情境下接收环境声音信息，以进行分析等操作。一种实施方式中，智能电子设备100可以为智能穿戴设备，例如智能手环、智能眼镜等，其他实施方式中，智能电子设备100也可以为移动终端，例如手机、平板电脑、笔记本电脑等。麦克风组件20收容于壳体10内，壳体10对麦克风组件20起到保护的作用，壳体10将麦克风组件20及其他电子组件与壳体10外的外界环境隔绝，具体用于隔绝灰层、水等可能对麦克风组件20及其他电子组件造成损坏的环境因素。
请参阅图2、图3及图4，麦克风组件20包括麦克风单体22、支架件24及防水膜26。具体的，支架件24内设有容纳腔242，麦克风单体22收容于容纳腔242内，支架件24的外表面24a还设有连通至容纳腔242的凹槽244，防水膜26收容于凹槽244内。支架件24用于固定于壳体10内，从而将麦克风组件20固定于壳体10内。本实施例中，麦克风单体22用于接收声波，具体的，麦克风单体22为用于将声音信号转换为电信号的装置。具体到图4，麦克风单体22 包括单体基座222、单体外壳224、电子器件及振膜，单体外壳224与单体基座222固定连接，电子器件和振膜收容于单体外壳224与单体基座222互连形成的盒体内，单体外壳224上设有接收孔226，接收孔226连通至单体外壳224的内部。外界传递至麦克风单体22的声波将空气的振动转换为振膜的振动，即振膜完成了接收声音信号的工作，电子器件则将振膜的振动转换成带有声音信息的电信号。电子器件电连接单体基座222，单体基座222电连接至信号处理装置，从而实现电子器件将包含声音信息的电信号向信号处理装置的传递。请参阅图5，一种实施方式中，单体基座222的外侧表面222a设有焊盘228，用于与柔性电路板28或导电引线焊接以实现电连接的关系。
本实施例中，支架件24用于固定于壳体10内。请参阅图4和图6，支架件24内设有容纳腔242，具体的，容纳腔242为从支架件24的一端向内延伸的腔体，且容纳腔242通过开口与外界连通。请参阅图7，麦克风单体22收容于容纳腔242内。本实施例中，麦克风单体22通过容纳腔242的开口插入容纳腔242中，从而将麦克风单体22整体全部收容于容纳腔242内。如图4所示，一种实施方式中，支架件24的开口设有倒角242a，一方面用于避免麦克风组件20在组装过程中开口的边缘尖锐易划伤操作者手指，另一方面有利于迅速的将麦克风单体22从开口插入容纳腔242内。一种实施方式中，容纳腔242的内部形状与麦克风单体22的轮廓形状一致，有利于容纳腔242内部与麦克风单体22的紧密配合，一种实施方式中，容纳腔242的截面为T型，T型容纳腔242尺寸较大的部分用于插入单体基座222，尺寸较小的部分用于插入单体外壳224。
请参阅图4和图6，本实施例中，支架件24的外表面24a还设有凹槽244，凹槽244连通至容纳腔242。具体的，凹槽244设置于支架件24用于贴合壳体10的外表面24a上。本实施例中，支架件24还设有第一通孔246，第一通孔246连通凹槽244与容纳腔242，凹槽244内设有槽底面244a，第一通孔246连通在槽底面244a与支架件24的内表面244b之间。需要说明的是，外表面24a为支架件24面向支架件24外侧的表面，内表面244b为支架件24与外表面24a相对的表面，内表面244b同时也是容纳腔242的壁面。
请参阅图2和图8，本实施例中，防水膜26完全收容于凹槽244内，具体的，防水膜26贴合固定于槽底面244a，一种实施方式中，防水膜26通过双面胶贴合槽底面244a，双面胶一方面起到牢固固定防水膜26的作用，另一方面使防水膜26与槽底面244a的配合面之间没有缝隙，从而阻止水通过防水膜26与槽底面244a之间的缝隙进入第一通孔246至容纳腔242。本实施例中，防水膜26的厚度不大于凹槽244的深度。
具体的，请参阅图4和图9，防水膜26包括相对设置的第一端面26a与第二端面26b，第一端面26a用于贴合槽底面244a从而将防水膜26固定在凹槽244内，第二端面26b面向壳体10。结合图10，当防水膜26的厚度小于凹槽244的深度时，第二端面26b不接触壳体10，即第二端面26b与壳体10之间存在间隙，第二端面26b位于支架件24的外表面24a与槽底面244a之间，防水膜26整体收容于凹槽244内。第二端面26b不接触壳体10则必然不会受到壳体10的挤压，防水膜26在不受到挤压力的情况下表现出良好的音频特性和一致性。
请参阅图11，本实施例中，来自外界的声波引起防水膜26振动，防水膜26将声波辐射至支架件24内并由麦克风单体22接收，具体的，声波由麦克风单体22内的振膜。防水膜26起到了声学振膜的作用，本实施例中，防水膜26的厚度小于凹槽244的深度，防水膜26在凹 槽244内有足够的空间用于振动，降低防水膜26对声音音质的影响。
防水膜26将支架件24内的麦克风单体22与外界隔开，凹槽244设置于支架件24上，通过凹槽244对防水膜26进行限位及稳定的固定，麦克风组件20在组装至壳体10内的过程中及正常使用时，麦克风单体22、支架件24等不会挤压防水膜26，防水膜26的厚度不大于凹槽244的深度，麦克风组件20组装后防水膜26与壳体10之间存在间隙，壳体10也不对防水膜26施加挤压力，在保证良好的音频密封与防水效果的前提下，防水膜26保持良好的音频特性与一致性，提升了产品的音频体验。
请参阅图4和图9，本实施例中，防水膜26包括固定环262和筛网膜264，固定环262固定筛网膜264的边缘，并用于拉伸与展开筛网膜264，固定环262通过双面胶粘贴于槽底面244a上。一种实施方式中，固定环262为圆环，圆环粘贴于槽底面244a时，圆环各方向的受力均衡，有利于将防水膜26稳定的固定在凹槽244内。同时，圆环对筛网膜264各方向的拉伸力均匀，有利于将筛网膜264展开、撑平，且不会出现筛网膜264的一个方向上受力不均衡的现象。请参阅图8，防水膜26与第一通孔246正对，换言之，防水膜26的中心轴线与第一通孔246的中心轴线重合，也可以理解为，筛网膜264与第一通孔246正对，换言之，筛网膜264的中心轴线与第一通孔246的中心轴线重合。防水膜26与第一通孔246正对有利于防水膜26将自身的振动通过第一通孔246辐射至支架件24内部，降低声波的损耗。一种实施方式中，筛网膜264的尺寸大于第一通孔246的尺寸，换言之，筛网膜264在槽底面244a的垂直投影覆盖第一通孔246，有利于将筛网膜264的振动完整的辐射至第一通孔246内，即减小声波从防水膜26向第一通孔246传播时的损耗，同时减小进入第一通孔246的外界其他杂音。请参阅图6，一种实施方式中，槽底面244a与第一通孔246的连接处设有倒角244c，一方面倒角用于避免麦克风组件20在组装过程中第一通孔246的边缘尖锐易划伤操作者手指，另一方面形成防水膜26至第一通孔246的过渡，减少声波从防水膜26至第一通孔246的传播过程的异变或损耗。
本实施例中，凹槽244的轮廓形状与防水膜26的形状一致。具体的，请参阅图4和图12，当防水膜26为圆形时，凹槽244内设圆形的容纳区2442与位于容纳区2442两侧的活动区2444，防水膜26放置于容纳区2442内，活动区2444连通容纳区2442与外界，活动区2444用于方便操作者伸入手指放置防水膜26与凹槽244中并调整凹槽244的位置。一种实施方式中，容纳区2442的尺寸大于防水膜26的尺寸，以使防水膜26在凹槽244中有一定的活动空间，一方面便于在组装过程中调节防水膜26位置，另一方面避免凹槽244挤压防水膜26而影响防水膜26的音频特性及一致性。
请参阅图7，本实施例中，麦克风单体22包括面对凹槽244的顶面22a，顶面22a接触容纳腔242的内表面244b。具体的，顶面22a接触内表面244b使麦克风单体22与容纳腔242的内表面244b之间没有间隙，避免声波从第一通孔246进入容纳腔242后从麦克风单体22与容纳腔242之间漏出，提高音频密封的效果，从第一通孔246进入容纳腔242的声波全部传播至麦克风单体22，具体的该声波全部进入接收孔226，提升了产品的音频体验。
一种实施方式中，顶面22a与内表面244b零间隙配合，以减少从顶面22a与内表面244b之间漏出的声波，进一步提高音频密封的效果，提升了产品的音频体验。
请参阅图7，本实施例中，接收孔226设于顶面22a上，且连通至麦克风单体22内部，接收孔226正对第一通孔246，换言之，接收孔226的中心轴线与第一通孔246的中心轴线重合。接收孔226与第一通孔246正对有利于声波从接收孔226辐射至麦克风单体22内部，降低声波的损耗。一种实施方式中，接收孔226的尺寸小于第一通孔246的尺寸，即接收孔226在内表面244b的垂直投影落入第一通孔246的范围内，有利于将穿过第一通孔246的声波完整的辐射至接收孔226内，即减小声波从第一通孔246向接收孔226传播时的损耗，同时减小进入接收孔226的外界其他杂音。请参阅图13，一种实施方式中，防水膜26的中心轴线、第一通孔246的中心轴线及接收孔226的中心轴线均重合，从而提供一条从防水膜26至麦克风单体22内部的最短的传播路径，降低声波的损耗。
一种实施方式中，支架件24为刚性材料支架，例如硬胶支架，刚性材料的支架件24的结构形状稳定，可以提供给防水膜26更好的保护，从而保持防水膜26较好的音频特性与一致性，提高音频体验。同时，刚性材料的支架件24与壳体10的配合面之间、刚性材料的支架件24与麦克风单体22的配合面之间连接紧密，提高了防水效果及音频密封效果。
请参阅图2，本实施例中，麦克风组件20还包括柔性电路板28，结合图3和图4，柔性电路板28包括互连为一体的连接段282与延长段284，连接段282收容于容纳腔242内，且连接段282固定连接麦克风单体22，延长段284位于容纳腔242外，延长段284用于电连接至智能电子设备100的信号处理装置。具体的，连接段282与延长段284相对弯折，以满足壳体10内部空间要求，及电子器件之间的位置布置要求。一种实施方式中，连接段282通过表面贴装技术焊接于单体基座222上，延长段284通过连接器连接至信号处理装置上，从而将麦克风单体22电连接至信号处理装置。柔性电路板28柔软可弯折，不仅可以满足电性连接的要求，也有利壳体10内部的空间布置。
本申请实施例还提供一种智能电子设备100，请参阅图1，本申请实施例一提供的智能电子设备100包括壳体10及本申请实施例一提供的麦克风组件20，麦克风组件20固定于壳体10内。
请参阅图1，一种实施方式中，壳体10包括上壳体10a与下壳体10b，上壳体10a盖合于下壳体10b上，形成封闭的壳体10结构，麦克风组件20收容于上壳体10a和下壳体10b组成的壳体10内部。本实施例中，麦克风组件20固定于下壳体10b内，其他实施方式中，麦克风组件20也可以固定于上壳体10a内。本申请实施例提供的智能电子设备100以麦克风组件20固定于下壳体10b为例进行阐述，可以理解的是，本申请实施例提供的智能电子设备100中壳体10的特征及麦克风组件20与壳体10的连接关系均可以理解为下壳体10b的特征及麦克风组件20与下壳体10b的连接关系，当然，麦克风组件20也可以固定于上壳体10a内，在此不再进行赘述。
请参阅图14，本实施例中，壳体10设有第二通孔12，第二通孔12贯穿壳体10的侧壁14，结合图15，防水膜26正对第二通孔12，来自外界的声波穿过第二通孔12传播至防水膜26，换言之，防水膜26的中心轴线与第二通孔12的中心轴线重合，有利于减少声波进入第二通孔12后传递至防水膜26的损耗。继续参阅图15，一种实施方式中，第二通孔12的中心轴线、防水膜26的中心轴线、第一通孔246的中心轴线及接收孔226的中心轴线均重合，从而提供一条从壳体10外部至麦克风单体22内部的最短的传播路径，降低 声波的损耗。请参阅图14，本实施例中，壳体10的侧壁14包括相对设置的内壁面14a与外壁面14b，第二通孔12连通内壁面14a与外壁面14b。一种实施方式中，防水膜26的尺寸大于第二通孔12的尺寸，即防水膜26在内壁面14a的垂直投影覆盖第二通孔12，有利于将穿过第二通孔12而进入壳体10内的声波全部传递至防水膜26，降低声波的损耗。
请参阅图14和图16，本实施例中，壳体10内设有限位板16，限位板16与侧壁14连接为一体形成限位插槽160，具体的，限位板16的数量为多个，多个限位板16首尾相连，并与壳体10的侧壁14连接形成具有一个开口的盒体，即限位插槽160。结合图15，麦克风组件20收容于限位插槽160内，具体的，麦克风组件20从限位插槽160的开口插入限位插槽160中，并完全收容于限位插槽160中。限位插槽160起到了固定麦克风组件20的功能。本实施例中，麦克风组件20的外表面24a接触侧壁14。具体的，麦克风组件20设有凹槽244的外表面24a接触侧壁14的内壁面14a，使支架件24与壳体10的配合面之间没有间隙，一方面起到防水的作用，即防止水进入第二通孔12后从支架件24与壳体10的配合面之间漏出而进入壳体10内，另一方面达到音频密封的效果，即防止声波进入第二通孔12后从支架件24与壳体10的配合面之间漏出而损耗。一种实施方式中，支架件24为刚性材料支架，例如硬胶支架，刚性材料的支架件24与壳体10的配合面之间连接紧密，提高了防水效果及音频密封效果。
请参阅图17和图18，本实施例中，智能电子设备100还包括封胶18，封胶18连接侧壁14及限位板16，封胶18用于将麦克风单体22、支架件24及防水膜26封闭于限位插槽160内。本实施例中，封胶18形成于麦克风组件20插入限位插槽160之后，将麦克风组件20封闭于限位插槽160中。具体的，封胶18填充于限位插槽160的开口处，从而使限位板16、壳体10的侧壁14及封胶18形成除了盒体，且第二通孔12是盒体与外界连接的唯一路径。封胶18将麦克风组件20与壳体10的内部隔离开来，同时起到了防水与音频密封的效果，由于装配与零件制造的误差，壳体10的侧壁14与支架件24的配合面之间、支架件24与麦克风单体22的配合面之间、支架与限位板16之间可能存在细微的间隙，封胶18隔断了限位插槽160的内部与限位插槽160的外部，从而进一步提高了防水与音频密封的效果。
请参阅图19和图20，本实施例中，延长段284位于限位插槽160外，延长段284用于电连接至智能电子设备100的信号处理装置。具体的，延长段284穿过封胶18延伸至限位插槽160外，从而将限位插槽160内部的麦克风单体22电连接至信号处理装置，完成信号的传递。
本实施例中，智能电子设备100的组装过程可以分为如下几个步骤：
S101、利用表面贴装技术将麦克风单体22连接至柔性电路板28的连接段282(请参阅图21)。
S102、将柔性电路板28与支架件24插入支架件24内(请参阅图22)。
S103、将防水膜26通过双面胶粘贴至支架件24的凹槽244的槽底面244a，从而形成麦克风组件20(请参阅图23)。
S104、将麦克风组件20插入限位插槽160中(请参阅图24)。
S105、在限位插槽160的开口点胶，形成封胶18(请参阅图25)。
S106、盖合上壳体10a于下壳体10b上(请参阅图26)。
防水膜26将麦克风单体22与外界隔绝，在智能电子设备100的组装过程中，防水膜26未受到麦克风单体22、支架件24或壳体10的挤压，防水膜26保持良好的音频特性与一致性，提升了产品的音频体验。
请参阅图27、图28及图29，本申请实施例二提供的智能电子设备100，包括麦克风组件20、壳体10及防水膜26。具体的，麦克风组件20固定于壳体10内，壳体10的侧壁14设有第二通孔12，麦克风组件20正对第二通孔12，且通过第二通孔12连通至壳体10外。侧壁14的外壁面14b一侧设有凹槽244，防水膜26正对第二通孔12，并收容于凹槽244内，防水膜26将壳体10内外隔开。本实施例中，麦克风组件20用于接收声波。具体的，请参阅图30和图31，麦克风组件20包括麦克风单体22、支架件24及柔性电路板28，支架件24固定于壳体10内，柔性电路板28包括互连为一体的连接段282与延长段284，麦克风单体22与连接段282固定连接，并共同收容于支架件24内，延长段284位于支架件24外，用于电连接至智能电子设备100的信号处理装置。本实施例中，支架件24为盒体结构，柔性电路板28的连接段282盖合于支架件24上，从而形成完整的盒体。支架件24设有第一通孔246，结合图30，第一通孔246为支架件24内部与外界连通的唯一路径。请继续参阅图30，一种实施方式中，麦克风单体22的顶面22a接触支架件24的内表面244b，顶面22a接触使麦克风单体22与容纳腔242的内表面244b之间没有间隙，避免声波从第一通孔246进入容纳腔242后从麦克风单体22与容纳腔242之间漏出，提高音频密封的效果，从第一通孔246进入容纳腔242的声波全部传播至麦克风单体22，具体到图30，麦克风单体22的顶面22a设有接收孔226，该声波全部进入接收孔226，提升了产品的音频体验。本实施例中，接收孔226正对第一通孔246，换言之，接收孔226的中心轴线与第一通孔246的中心轴线重合。接收孔226与第一通孔246正对有利于声波从接收孔226辐射至麦克风单体22内部，降低声波的损耗。一种实施方式中，接收孔226的尺寸小于第一通孔246的尺寸，即接收孔226在内表面244b的垂直投影落入第一通孔246的范围内，有利于将穿过第一通孔246的声波完整的辐射至接收孔226内，即减小声波从第一通孔246向接收孔226传播时的损耗，同时减小进入接收孔226的外界其他杂音。
本实施例中，麦克风组件20固定于壳体10内，请参阅图32和图33，壳体10的侧壁14设有第二通孔12，麦克风组件20正对第二通孔12，且通过第二通孔12连通至壳体10外。具体的，第二通孔12贯穿壳体10的侧壁14，具体到图33，第二通孔12的中心轴线、第一通孔246的中心轴线及接收孔226的中心轴线重合，从而提供一条从壳体10外部至麦克风单体22内部的最短的传播路径，降低声波的损耗。本实施例中，壳体10的侧壁14包括相对设置的内壁面14a与外壁面14b，第二通孔12连通内壁面14a与外壁面14b。
请参阅图29，本实施例中，防水膜26正对第二通孔12，侧壁14的外壁面14b一侧设有凹槽244，防水膜26收容于凹槽244内，来自外界的声波引起防水膜26振动，防水膜26将声波辐射至麦克风组件20。具体的，结合图32，凹槽244从侧壁14的外壁面14b一侧形成于壳体10上，凹槽244通过第二通孔12连通至壳体10内部。参阅图34，本实施例中，凹槽244内设有槽底面244a，防水膜26贴合固定于槽底面244a，一种实施方式中，防水膜26通过双面胶贴合槽底面244a，双面胶一方面起到牢固固定防水膜26的作用，另 一方面使防水膜26与槽底面244a的配合面之间没有缝隙，从而阻止水进入防水膜26与槽底面244a之间的缝隙而残留于凹槽244内。本实施例中，防水膜26正对第二通孔12，换言之，防水膜26的中心轴线与第二通孔12的中心轴线重合，有利于减少声波进入第二通孔12后传递至防水膜26的损耗。参阅图29，一种实施方式中，防水膜26的中心轴线、第二通孔12的中心轴线、第一通孔246的中心轴线及接收孔226的中心轴线均重合，从而提供一条从壳体10外部至麦克风单体22内部的最短的传播路径，降低声波的损耗。一种实施方式中，防水膜26的尺寸大于第二通孔12的尺寸，有利于将防水膜26振动产生的声波全部传递至壳体10内部，降低声波的损耗。
请参阅图29，防水膜26与第一通孔246正对，换言之，防水膜26的中心轴线与第一通孔246的中心轴线重合，也可以理解为，筛网膜264与第一通孔246正对，换言之，筛网膜264的中心轴线与第一通孔246的中心轴线重合。防水膜26与第一通孔246正对有利于防水膜26将自身的振动通过第一通孔246辐射至支架件24内部，降低声波的损耗。请参阅图29和图31，一种实施方式中，支架件24的外表面24a与第一通孔246的连接处设有倒角246c，一方面倒角246c用于避免麦克风组件20在组装过程中第一通孔246的边缘尖锐易划伤操作者手指，另一方面形成第二通孔12至第一通孔246的过渡，减少声波从防水膜26至第一通孔246的传播过程的异变或损耗。
本实施例中，凹槽244的轮廓形状与防水膜26的形状一致。具体的，请参阅图35，当防水膜26为圆形时，凹槽244也为圆形。一种实施方式中，凹槽244的尺寸大于防水膜26的尺寸，以使防水膜26在凹槽244中有一定的活动空间，一方面便于在组装过程中调节防水膜26位置，另一方面避免凹槽244挤压防水膜26而影响防水膜26的音频特性及一致性。
请参阅图29，本实施例中，麦克风组件20接触壳体10侧壁14的内壁面14a。具体的，支架件24的外表面24a接触侧壁14的内壁面14a，使支架件24与壳体10的配合面之间没有间隙，一方面起到防水的作用，即防止水进入第二通孔12后从支架件24与壳体10的配合面之间漏出而进入壳体10内，另一方面达到音频密封的效果，即防止声波进入第二通孔12后从支架件24与壳体10的配合面之间漏出而损耗。一种实施方式中，支架件24为弹性材料支架，例如软胶支架，弹性材料的支架件24可压缩，支架件24与壳体10的配合面之间连接紧密，提高了音频密封效果。
请参阅图36，本实施例中，智能电子设备100还包括装饰片30，装饰片30固定于侧壁14上，并覆盖防水膜26。具体的，装饰片30为片状，装饰片30将防水膜26与外界隔开，保护防水膜26，避免磕碰防水膜26或有灰尘沉积在筛网膜264上而堵塞筛网膜264。本实施例中，装饰片30设有贯穿装饰片30的第三通孔300，第三通孔300将外界与防水膜26连通，用于将声波传递至防水膜26。具体的，结合图36，第三通孔300正对防水膜26，第三通孔300的中心轴线、防水膜26的中心轴线、第二通孔12的中心轴线、第一通孔246的中心轴线及接收孔226的中心轴线均重合，从而提供一条从壳体10外部至麦克风单体22内部的最短的传播路径，降低声波的损耗。一种实施方式中，装饰片30面向壳体10外的表面与外壁面14b齐平，以使壳体10表面平整美观。
请参阅图37，一种实施方式中，防水膜26的厚度不大于槽底面244a与装饰片30之间的 垂直距离。防水膜26包括相对设置的第一端面26a与第二端面26b，第一端面26a用于贴合槽底面244a从而将防水膜26固定在凹槽244内，第二端面26b面向凹槽244外，即面向装饰片30，当防水膜26的厚度小于槽底面244a与装饰片30之间的垂直距离时，第二端面26b不接触装饰片30，即第二端面26b与装饰片30之间存在间隙，第二端面26b位于装饰片30与槽底面244a之间，防水膜26整体收容于凹槽244内。第二端面26b不接触装饰片30则必然不会受到装饰片30或壳体10的挤压，防水膜26在不受到挤压力的情况下表现出良好的音频特性和一致性。结合图36和图38，一种实施方式中，装饰片30面对防水膜26的表面设有凹坑302，凹坑302的尺寸与凹槽244的尺寸对应，防水膜26收容于凹坑302与凹槽244之间，凹坑302使防水膜26与装饰件之间存在间隙，避免装饰片30挤压防水膜26。
请参阅图39，本实施例中，来自外界的声波引起防水膜26振动，防水膜26将声波辐射至支架件24内并由麦克风单体22接收，具体的，声波由麦克风单体22内的振膜。防水膜26起到了声学振膜的作用。
防水膜26将壳体10内外隔开，凹槽244设置于壳体10上，通过凹槽244对防水膜26进行限位及稳定，麦克风组件20在组装至壳体10内的过程中及正常使用时，麦克风单体22、支架件24等不接触也不挤压防水膜26，防水膜26的厚度不大于凹槽244的深度，麦克风组件20组装后防水膜26与装饰片30之间存在间隙，装饰片30也不对防水膜26施加挤压力，在保证良好的音频密封与防水效果的前提下，防水膜26保持良好的音频特性与一致性，提升了产品的音频体验。
请参阅图41，本实施例中，壳体10内部还设有一对相对设置的固定耳110，具体的，固定耳110设置于壳体10侧壁14的内壁面14a上，且两个固定耳110分别位于第二通孔12的两侧。请参阅图40，在一对固定耳110之间还固定有压片130，压片130插入一对固定耳110之间，压片130将麦克风组件20固定于壳体10内部，具体的，结合图39，压片130对麦克风组件20的压力与壳体10侧壁14对麦克风组件20的压力方向相反，从而将麦克风组件20固定在壳体10内。压片130挤压麦克风组件20，使麦克风组件20紧贴侧壁14的内壁面14a，具体为支架件24的外表面24a紧贴内壁面14a，以使支架件24与壳体10的配合面之间没有缝隙，避免声波穿过第二通孔12进入壳体10内后从支架件24与壳体10的配合面之间漏出，提高音频密封效果。当支架件24为弹性材料时，压片130挤压支架件24时支架件24被压缩变形，使支架件24与壳体10的连接更加紧密，提高了音频密封效果。请参阅图41，一种实施方式中，壳体10内还设有垫块150。垫块150用于将麦克风组件20垫高，也可以理解为垫块150用于限定麦克风组件20的位置，以使麦克风组件20的第一通孔246正对壳体10的第二通孔12。
本实施例中，智能电子设备100的组装过程可以分为如下几个步骤：
S201、利用表面贴装技术将麦克风单体22连接至柔性电路板28的连接段282(请参阅图42)。
S202、拼接柔性电路板28与支架件24，柔性电路板28、支架件24及麦克风单体22形成麦克风组件20，其中，麦克风单体22收容于支架件24内部(请参阅图43)。
S203、将麦克风组件20放置于下壳体10b内部，将压片130插入一对固定耳110之间以固定麦克风组件20(请参阅图44)。
S204、将防水膜26通过双面胶粘贴至凹槽244内(请参阅图45)。
S205、安装装饰片30(请参阅图46)。
S206、盖合上壳体10a于下壳体10b上(请参阅图17)。
一种实施方式中，步骤S204和S205也可以先于S201执行。
防水膜26将麦克风单体22与外界隔绝，在智能电子设备100的组装过程中，防水膜26未受到麦克风组件20或壳体10的挤压，防水膜26保持良好的音频特性与一致性，提升了产品的音频体验。
以上所述，仅为本申请的具体实施方式，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，可轻易的想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (15)

  1. 一种麦克风组件，安装于智能电子设备的壳体内，其特征在于，所述麦克风组件包括：麦克风单体、支架件和防水膜，所述支架件固定于所述壳体，所述麦克风单体容纳于所述支架件，所述防水膜固定于所述支架件；其中，
    所述麦克风单体，用于接收声波；
    所述支架件内设有容纳腔，所述麦克风单体收容于所述容纳腔内，所述支架件的外表面设有凹槽，所述凹槽连通至所述容纳腔；所述防水膜收容于所述凹槽内。
  2. 根据权利要求1所述的麦克风组件，其特征在于，所述防水膜包括固定环和筛网膜，所述固定环固定所述筛网膜的边缘，并用于拉伸与展开所述筛网膜，所述凹槽内设槽底面，所述固定环粘贴于所述槽底面。
  3. 根据权利要求2所述的麦克风组件，其特征在于，所述麦克风单体包括面对所述防水膜的顶面，所述顶面接触所述容纳腔的内表面。
  4. 根据权利要求3所述的麦克风组件，其特征在于，所述顶面设有连通至所述麦克风单体内部的接收孔，所述支架件设有第一通孔，所述第一通孔连通所述凹槽与所述容纳腔，所述接收孔正对所述第一通孔，且所述接收孔的尺寸小于所述第一通孔的尺寸。
  5. 根据权利要求1至4任意一项所述的麦克风组件，其特征在于，所述麦克风组件还包括柔性电路板，所述柔性电路板包括互连为一体的连接段与延长段，所述连接段收容于所述容纳腔内，且所述连接段固定连接所述麦克风单体，所述延长段位于所述容纳腔外，所述延长段用于电连接至所述智能电子设备的信号处理装置。
  6. 一种智能电子设备，其特征在于，包括壳体及权利要求1至5任意一项所述的麦克风组件，所述壳体设有第二通孔，所述第二通孔贯穿所述壳体的侧壁，所述麦克风组件固定于所述壳体内，所述防水膜正对所述第二通孔，来自外界的声波穿过所述第二通孔传播至所述防水膜。
  7. 根据权利要求6所述的智能电子设备，其特征在于，所述壳体内设有限位板，所述限位板与所述侧壁连接为一体形成限位插槽，所述麦克风组件收容于所述限位插槽内，且所述麦克风组件的所述外表面接触所述侧壁。
  8. 根据权利要求7所述的智能电子设备，其特征在于，所述智能电子设备还包括封胶，所述封胶连接所述侧壁及所述限位板，所述封胶用于将所述麦克风单体、所述支架件及所述防水膜封闭于所述限位插槽内。
  9. 根据权利要求8所述的智能电子设备，其特征在于，所述麦克风组件还包括柔性电路板，所述柔性电路板包括互连为一体的连接段与延长段，所述连接段收容于所述容纳腔内，且所述连接段固定连接所述麦克风单体，所述延长段位于所述限位插槽外，所述延长段用于电连接至所述智能电子设备的信号处理装置。
  10. 一种智能电子设备，其特征在于，包括：
    麦克风组件，用于接收声波；
    壳体，所述麦克风组件固定于所述壳体内，所述壳体的侧壁设有第二通孔，所述麦克风组件正对所述第二通孔，且通过所述第二通孔连通至所述壳体外；
    防水膜，所述防水膜正对所述第二通孔，所述侧壁的外壁面一侧设有凹槽，所述防水膜收容于所述凹槽内。
  11. 根据权利要求10所述的智能电子设备，其特征在于，所述侧壁还包括与所述外壁面相对的内壁面，所述麦克风组件接触所述内壁面。
  12. 根据权利要求11所述的智能电子设备，其特征在于，所述防水膜包括固定环和筛网膜，所述固定环固定所述筛网膜的边缘，并用于拉伸与展开所述筛网膜，所述凹槽包括槽底面，所述固定环通过双面胶粘贴于所述槽底面上。
  13. 根据权利要求12所述的智能电子设备，其特征在于，所述智能电子设备还包括装饰片，所述装饰片固定于所述侧壁上，并覆盖所述防水膜，所述防水膜的厚度不大于所述槽底面与所述装饰片之间的垂直距离。
  14. 根据权利要求10所述的智能电子设备，其特征在于，所述麦克风组件包括麦克风单体、支架件及柔性电路板，所述支架件固定于所述壳体内，所述柔性电路板包括互连为一体的连接段与延长段，所述麦克风单体与所述连接段固定连接，并共同收容于所述支架件内，所述延长段位于所述支架件外，用于电连接至所述智能电子设备的信号处理装置。
  15. 根据权利要求11所述的智能电子设备，其特征在于，所述支架件为弹性材料，以使所述支架件受挤压后贴合所述内壁面。
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