WO2023065831A9 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2023065831A9
WO2023065831A9 PCT/CN2022/115773 CN2022115773W WO2023065831A9 WO 2023065831 A9 WO2023065831 A9 WO 2023065831A9 CN 2022115773 W CN2022115773 W CN 2022115773W WO 2023065831 A9 WO2023065831 A9 WO 2023065831A9
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
electronic device
section
flexible
flexible circuit
Prior art date
Application number
PCT/CN2022/115773
Other languages
English (en)
French (fr)
Other versions
WO2023065831A1 (zh
Inventor
杨秀娟
李明川
王文灏
Original Assignee
荣耀终端有限公司
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 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to EP22862399.7A priority Critical patent/EP4195632A1/en
Publication of WO2023065831A1 publication Critical patent/WO2023065831A1/zh
Publication of WO2023065831A9 publication Critical patent/WO2023065831A9/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216Foldable in one direction, i.e. using a one degree of freedom hinge
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1615Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • G06F1/1658Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories related to the mounting of internal components, e.g. disc drive or any other functional module
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681Details related solely to hinges
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1683Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for the transmission of signal or power between the different housings, e.g. details of wired or wireless communication, passage of cabling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0277Details of the structure or mounting of specific components for a printed circuit board assembly
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/18Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
    • H04M1/185Improving the rigidity of the casing or resistance to shocks
    • 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
    • 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
    • H05K1/0277Bendability or stretchability details
    • H05K1/028Bending or folding regions of flexible printed circuits
    • 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
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present application relates to the related technical field of foldable communication devices, and in particular to an electronic device.
  • the display screen is supported by two main bodies that are rotatably connected by a folding structure, and the display screen can be relatively opened or closed through the two main bodies to realize the unfolded and folded states of the display screen.
  • the current foldable mobile phone is equipped with a flexible printed circuit (FPC).
  • the flexible circuit board is electrically connected to the two circuit modules.
  • the display screen and the main body need to be disassembled, which is inconvenient for maintenance and replacement.
  • the application provides an electronic device, which can solve the technical problem that the whole machine needs to be disassembled and inconvenient for maintenance when replacing a flexible circuit board.
  • the electronic device includes: a first body, a second body, a shaft part, a display screen, a middle case, and a flexible circuit board.
  • the first main body is connected with one side of the middle case through the rotating shaft part
  • the second main body is connected with the other side of the middle case through the rotating shaft part
  • the display screen is connected with the first main body and the second main body
  • the electronic equipment includes connecting the first The gaps of the main body, the second body and the middle shell.
  • the rotating shaft makes the first body and the second body both rotatable
  • the display screen is specifically a flexible display screen that can be deformed and bent.
  • the first body and the second body can be relatively opened or closed. When the first body and the second body are relatively opened, the display screen is in an unfolded state with a large display area. When the first body and the second body are relatively closed, the display screen is in a folded state. state.
  • the flexible circuit board is located in the gap and extends from the first body to the second body to connect the first body and the second body.
  • the first main body includes a first functional module
  • the second main body includes a second functional module
  • the flexible circuit board specifically connects the first functional module and the second functional module, so that the first functional module and the second functional module are electrically connected.
  • the flexible circuit board includes a shaft-through section, and a reinforcement plate is provided on the surface of the shaft-through section.
  • the reinforcement plate can strengthen the strength of the shaft-through section and prevent the shaft-through section from being damaged or broken during repeated opening and closing of the electronic device.
  • the reinforcement plate is located in the middle shell, and the reinforcement plate includes a support sheet and a flexible area, and the surface of the support sheet away from the shaft-through section is fixed to the middle shell; the flexible area is arranged on the support sheet, or the support sheet is divided into multiple pieces to support The sheet or the sheet body is stacked and fixed on a surface of the shaft passing section.
  • the reinforcing plate is fixed to the middle shell by the supporting piece, the flexible area is not connected with the middle shell, and there is no fixing force between the flexible area and the middle shell.
  • the reinforcing plate includes a supporting sheet and a flexible area. Since there is no fixed force between the flexible area and the middle shell, compared with the reinforcing plate with the same area, the relationship between the reinforcing plate and the middle shell in this embodiment The fixing force between them is significantly reduced, and when replacing the flexible circuit board, the fixing force that needs to be overcome is small.
  • the flexible area also enables the reinforcing plate to achieve flexible deformation when the flexible circuit board moves. Specifically, the flexible area of the reinforcing plate enables the reinforcing plate to deform and bend at least in the length direction of the electronic device.
  • the flexible circuit board is disassembled When the reinforcement plate is bent and deformed, the fixing force between the reinforcement plate and the middle shell is dispersed into several small parts, so that the flexible The circuit board is taken out and replaced, increasing the convenience of repairing and replacing the flexible circuit board. Since the flexible circuit board can be replaced without disassembling the display screen and the main structure, it can avoid damage to the display screen or the middle frame when the flexible circuit board is replaced, thereby prolonging the life of the electronic device.
  • the reinforcing plate is pasted and fixed to the middle shell.
  • the support piece and the middle case are bonded and fixed.
  • glue is dispensed on the surface of the support piece away from the shaft-through portion.
  • the glue point is in contact with the middle case to fix the flexible circuit board. .
  • the bonding and fixing method has high reliability, which can prevent the entire flexible circuit board from being displaced due to the loosening of the passing shaft, and prevent the electrical connection between the first body and the second body from being unstable due to the displacement of the flexible circuit board, thereby increasing the stability of the electrical connection.
  • the reinforcing plate has a magnetic surface
  • the middle shell has a magnetic surface
  • the reinforcing plate and the middle shell are fixed by magnetic adsorption.
  • the reinforcing plate is made of a material that can be absorbed by the magnetic parts, such as steel, and the surface of the reinforcing plate facing the middle shell is a magnetic surface.
  • a layer of magnet is arranged on the middle shell, and the surface of the magnet facing the reinforcement plate is the magnetic surface of the middle shell. The magnet can generate an adsorption force on the reinforcing plate made of steel, so as to fix the shaft passing section of the flexible circuit board.
  • the reinforcing plate is fixed in the middle shell through a fixing block
  • the fixing block is magnetic and fixed in the middle shell
  • the reinforcing plate and the fixing block are magnetically connected.
  • the fixing block is a magnet
  • the reinforcing plate is made of steel
  • the reinforcing plate has a first reinforcing surface and a second reinforcing surface opposite to the first reinforcing surface
  • the fixing block includes the first fixing surface and the second reinforcing surface.
  • the magnetic pole of the first fixed surface is N pole
  • the magnetic pole of the second fixed surface is S pole.
  • the first reinforcing surface is bonded and fixed to the shaft passing section of the flexible circuit board, so that the reinforcing plate and the flexible circuit board are fixed, the second reinforcing surface is magnetically fixed to the first fixing surface, and the second fixing surface is adsorbed and fixed to the middle shell .
  • the reinforcement plate is fixed by the magnet, which can not only ensure the reliable connection of the shaft-through section of the flexible circuit board with the middle shell, but also increase the convenience of disassembling the flexible circuit board, and reduce the difficulty of removing the flexible circuit board when the machine is not disassembled.
  • the N pole of a magnet is used to be close to the display screen of the electronic device.
  • the magnet and the N pole of the fixed block generate mutual repulsion, so that the adsorption force of the fixed block to the reinforcing plate is weakened, and the adsorption force After weakening, the flexible circuit board is easier to pull out from the electronic device.
  • the support sheet includes a plurality of independent sheet bodies, and the flexible area is formed when the sheet bodies are mounted on the flexible circuit board. Specifically, when a plurality of sheets are installed on the flexible circuit board, they are arranged at intervals, and the interval between every two adjacent sheets forms a flexible area. Because the two adjacent sheets are completely spaced apart, the formed flexible area can make the reinforcing plate have a strong flexible deformation ability. When the flexible circuit board is pulled out, the fixing force of the fixing reinforcing plate is effectively dispersed, which can Reduce the difficulty of disassembling the flexible circuit board.
  • the support sheet includes two independent sheet bodies, and the two independent sheet bodies are arranged at intervals along the width direction of the electronic device on the shaft passing section of the flexible circuit board. At this time, a gap extending along the length direction of the electronic device is formed between the two sheet bodies, and the gap forms a flexible region.
  • the reinforcing plate consists of two separate pieces, which is easier to install.
  • the flexible area is a hollow area that runs through the support sheet.
  • the supporting sheet remains in an integral state, which can simplify the steps of installing the reinforcing plate to the shaft passing section of the flexible circuit board, increase the convenience of assembly, and enable the reinforcing plate to have flexible deformation capability.
  • a plurality of hollow areas can be regularly arranged on the support sheet in the manner of M rows and N columns, where M and N are both positive integers greater than or equal to 1.
  • a plurality of hollow areas are arranged regularly, so that the structural strength of each position of the reinforcing plate is relatively uniform, which can prolong the service life of the reinforcing plate.
  • the multiple hollow areas are arranged in disorder.
  • the supporting sheet includes a plurality of sheet bodies, the flexible area is a film layer formed of a flexible material, and every two adjacent sheet bodies are connected through a film layer. After the flexible area is set as a film layer, the reinforcing board becomes a whole, which facilitates the installation of the reinforcing board and the flexible circuit board.
  • the support sheet is provided with a hollow area, and a film layer formed of a flexible material is provided in the hollow area, and the film layer forms a flexible area.
  • the flexible area formed by the film layer makes the reinforcing board have better flexible deformation ability, so that the flexible circuit board can be easily disassembled.
  • the middle shell includes a support groove and an appearance surface facing away from the support groove, and the fixing block is arranged in the support groove and fixedly connected with the bottom wall of the support groove.
  • the appearance surface is exposed and is in a ready state.
  • the appearance of the electronic device when the first body and the second body are relatively opened, the appearance surface is at least partially covered.
  • the support groove is provided, and the fixing block is accommodated in the support groove, which can save space and make the structure of the electronic equipment more compact.
  • the first main body and the second main body form an accommodating chamber
  • the flexible circuit board further includes a first connecting section and a second connecting section located outside the accommodating chamber, and the first connecting section and the second connecting section are located on the flexible circuit board.
  • the first body includes a first carrier board and a first circuit board located outside the accommodation chamber, and the second body includes a second carrier board and a second circuit board located outside the accommodation chamber; the first circuit board is stacked on the first carrier board Above, the second circuit board is stacked on the second carrier board, and the first connection section and the second connection section are electrically connected to the first circuit board and the second circuit board respectively.
  • the accommodating chamber is used for accommodating components such as the shaft passing section of the flexible circuit board, the middle case and the fixing block, and can protect the shaft passing section of the flexible circuit board, the fixing block and other components.
  • the first body includes a first housing and a first circuit board
  • the first housing includes a first middle frame and a first support plate
  • the first middle frame and the first support plate form a first accommodating cavity and The first groove, the surface of the first support plate away from the first middle frame supports the display screen
  • the second body includes a second housing and a second circuit board
  • the second housing includes a second middle frame and a second support plate
  • the second body includes a second middle frame and a second support plate.
  • the second middle frame and the second support plate form a second accommodating cavity and a second groove connected to each other, the second support plate is away from the surface of the second middle frame to support the display screen, and the first groove and the second groove are opposite and communicated;
  • the first accommodating chamber, the first groove, the second accommodating chamber and the second groove form an accommodating chamber.
  • the middle shell is installed in the first groove and the second groove.
  • the flexible circuit board also includes a first extension section and a second extension section, the first connection section, the first extension section, the shaft passing section, the second extension section and the second connection section are sequentially connected along the X-axis direction; the first extension section is located at In the first accommodating cavity, the second extension section is located in the second accommodating cavity.
  • the first extension section and the second extension section have the ability to be freely deformed and bent.
  • the first extension section and the second extension section can be bent or flattened according to the deformation to adapt to the electronic device The opening and closing of the electronic device prevents the shaft section from falling off during the opening and closing process of the electronic device.
  • the first bearing plate is provided with a first receiving groove
  • the second bearing plate is provided with a second receiving groove
  • the first circuit board and the first connecting section are located in the first receiving groove
  • the second circuit board and the second connecting section are located in the second receiving groove. Therefore, space can be saved, and the structure compactness of the electronic equipment can be increased.
  • the first circuit board and the first connection section are fixed by first gold finger welding, and the second circuit board and the second connection section are fixed by second gold finger welding.
  • the electrical connection between the first circuit board and the flexible circuit board is realized, and the electrical connection between the second circuit board and the flexible circuit board is realized, so that the first body and the second body can realize communication.
  • the thickness of the connection between the first circuit board and the flexible circuit board and the thickness of the connection between the second circuit board and the flexible circuit board are greatly reduced.
  • the height of the flexible circuit board installation area between the first carrier board and the flexible circuit board installation area between the second support board and the second carrier board is constant, because the total thickness of the connection between the first circuit board and the first connecting section Reduced, the total thickness of the connection between the second circuit board and the second connection section is reduced, when the flexible circuit board is removed and reinstalled, the distance reserved for the height space for the flexible circuit board to pass through increases, increasing the time for removing and installing the flexible circuit board convenience.
  • the total thickness of the connection between the first circuit board and the first connection section is greatly reduced, and the total thickness of the connection between the second connection board and the second connection section is greatly reduced to ensure that the flexible circuit board can pass through the first support board and the first
  • the thickness of the electronic device can also be appropriately reduced between the carrying plates, and when passing through between the second supporting plate and the second carrying plate, so as to improve the compactness of the structure of the electronic device.
  • the first bearing plate includes a first bearing surface and a second bearing surface opposite to the first bearing surface; the second bearing plate includes a third bearing surface and a fourth bearing surface opposite to the third bearing surface;
  • the first circuit board is laminated on the first bearing surface or the second bearing surface, and the second circuit board is laminated on the third bearing surface or the fourth bearing surface. Therefore, the flexibility of setting the internal structure is increased, and the design method can be selected according to the adaptability of different models.
  • a first gap is provided between the first middle frame and the first support plate
  • a second gap is provided between the second middle frame and the second support plate
  • a part of the first connecting section is located in the first gap
  • a part of the second connection section is located in the second slit; the heights of the first slit and the second slit are both greater than the thickness of the flexible circuit board.
  • the first connection section when disassembling the flexible circuit board, open the back cover of the battery, and at least part of the first connection section and the second connection section can be seen. Taking the operation of the first connection section as an example, the rest of the flexible circuit board passes through the second connection section in sequence. The slot, the receiving chamber and the first slot are finally completely extracted.
  • the first connection section of the flexible circuit board passes through the second gap, the accommodation chamber and the first gap in turn, and finally protrudes out of the accommodation chamber, so as to realize the flexibility of the flexible circuit board. Install.
  • the electronic device further includes a pressing plate, which is fixedly connected to the middle shell, and the pressing plate has a pressing surface, and the pressing surface faces the surface of the shaft-through section away from the supporting sheet; in the thickness direction of the electronic equipment, the pressing There is a distance between the joint surface and the surface of the shaft passing section away from the support sheet.
  • the distance is between 1.3mm and 1.7mm, which can ensure the pressure
  • the joint surface is shaped to the shaft passing section to prevent wrinkles from occurring in the shaft passing section and to keep the structure of the electronic device compact.
  • FIG. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application in a state.
  • FIG. 2 is a schematic structural diagram of the electronic device shown in FIG. 1 in a folded state.
  • FIG. 3 is a schematic plan view of the electronic device shown in FIG. 1 .
  • FIG. 4 is a schematic structural diagram of the flexible circuit board shown in FIG. 3 .
  • FIG. 5 is an enlarged view of A in FIG. 3 .
  • Fig. 6 is a schematic plan view of an electronic device provided by another embodiment.
  • FIG. 7 is a schematic plan view of the shaft passing section of the fixing block shown in FIG. 3 fixing the flexible circuit board.
  • Fig. 8 is an exploded schematic diagram of Fig. 7 .
  • FIG. 9 is a schematic diagram of the supporting sheet of the reinforcing board of an embodiment of the electronic device shown in FIG. 3 when it is installed on the flexible circuit board, wherein the supporting sheet is two sheets.
  • FIG. 10 is a structural schematic diagram of the buckling plate shown in FIG. 9 being bent and deformed by the shaft passing section of the flexible circuit board.
  • FIG. 11 is a schematic structural diagram of a reinforcing plate of an embodiment of the electronic device shown in FIG. 3 .
  • FIG. 12 is a schematic view of the support sheet of the reinforcing board mounted on the flexible circuit board in an embodiment of the electronic device shown in FIG. 3 , wherein the support sheets are five pieces.
  • FIG. 13 is a structural schematic diagram of the buckling plate shown in FIG. 12 being bent and deformed by the shaft passing section of the flexible circuit board.
  • FIG. 14 is a schematic view of the supporting sheet of the reinforcing plate of an embodiment of the electronic device shown in FIG. 3 when it is installed on the flexible circuit board, wherein the supporting sheet is a plurality of sheets.
  • FIG. 15 is a schematic diagram of an embodiment of the electronic device shown in FIG. 3 , where the flexible area of the reinforcing plate is disposed on the supporting sheet of the reinforcing plate, wherein the flexible area includes a hollow area.
  • FIG. 16 is a structural schematic diagram of the buckling plate shown in FIG. 15 being bent and deformed by the shaft passing section of the flexible circuit board.
  • FIG. 17 is a schematic diagram of an embodiment of the electronic device shown in FIG. 3 , where the flexible area of the reinforcing plate is set on the support sheet of the reinforcing plate, wherein the flexible area includes three hollow areas arranged along the X-axis.
  • FIG. 18 is a structural schematic diagram of the buckling plate shown in FIG. 17 being bent and deformed by the shaft passing section of the flexible circuit board.
  • FIG. 19 is a schematic diagram of an embodiment of the electronic device shown in FIG. 3 , where the flexible area of the reinforcing plate is set on the supporting sheet of the reinforcing plate, wherein the flexible area includes three hollow areas arranged along the Y axis.
  • FIG. 20 is a schematic diagram of an embodiment of the electronic device shown in FIG. 3 , where the flexible area of the reinforcing plate is set on the supporting sheet of the reinforcing plate, wherein the flexible area includes a plurality of hollow areas arranged in an array.
  • Fig. 21 is a schematic plan view of an electronic device including a laminated board.
  • FIG. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application in a state
  • FIG. 2 is a schematic structural diagram of the electronic device shown in FIG. 1 in a folded state.
  • the electronic device 1000 shown in FIG. 1 is in an unfolded state.
  • the electronic device 1000 may be a mobile phone, a tablet computer, a personal digital assistant (personal digital assistant, PDA), a learning machine, a game machine, a notebook computer and other electronic products.
  • PDA personal digital assistant
  • the embodiment of the present application is illustrated with the electronic device 1000 as a mobile phone.
  • the mobile phone includes a first main body 1, a second main body 2, a shaft part 3, a display screen 4, a middle shell 5, and a flexible circuit board 6 (Fig.
  • the plane structure diagram of the equipment, Figure 3 is a schematic diagram, the specific connection of the shaft part 3 is not shown in the figure).
  • the first main body 1 and the second main body 2 are respectively connected to the middle shell 5 through the rotating shaft part 3 , and the first main body 1 and the second main body 2 can be relatively opened or closed through the rotating shaft part 3 .
  • a reinforcing plate 7 is fixed to the shaft passing portion of the flexible circuit board 6 , and the reinforcing plate 7 is fixedly connected to the middle shell 5 to fix the shaft passing portion of the flexible circuit board 6 .
  • the display screen 4 is connected to the first main body 1 and the second main body 2.
  • the first main body 1 and the second main body 2 are relatively opened, the first main body 1 and the second main body 2 are arranged side by side along the X-axis direction.
  • the included angle is 180 degrees
  • the display screen 4 is in an unfolded state
  • the middle case 5 is covered by the first body 1 and the second body 2 .
  • the first body 1 and the second body 2 are relatively closed, the first body 1 and the second body 2 are stacked along the Z-axis direction, the angle between them is 0 degrees
  • the display screen 4 is in a folded state, and the middle shell 5 A part of it is exposed outside, and is located between the first body 1 and the second body 2, as a mobile phone appearance.
  • the angle between the first body 1 and the second body 2 is 180 degrees and 0 degrees, it is allowed to have a tolerance angle range value for assembly. For example, 179 degrees can be understood as 180 degrees, and 1 degree can be understood as 0 degrees. .
  • the first main body 1 and the second main body 2 together form an accommodating chamber 8 , the shaft passing part and the deformable part of the flexible circuit board 6 are located in the accommodating chamber 8 , and the middle shell 5 is located between the first main body 1 and the second main body 2 , and part of it is located in the accommodation chamber 8 or all of it is located in the accommodation chamber 8 .
  • the flexible circuit board 6 connects the first body 1 and the second body 2 so that the first body 1 and the second body 2 communicate with each other.
  • the first body 1 includes a first housing 11 and a first functional module (not labeled), the first functional module is used to electrically connect the first body 1 to the second body 2, so that The first body 1 and the second body 2 can perform information transmission.
  • the first housing 11 includes a first middle frame 111 and a first support plate 112, the first middle frame 111 and the first support plate 112 form the first accommodation cavity 81, and the first support plate 112 has a second One surface, the first surface is used to support the display screen 4 .
  • a first slit is provided between the first middle frame 111 and the first support plate 112, a second slit 213 (as shown in FIG.
  • the first slit and the second slit 213 are all dimensions in the X-axis direction, the first slit and the second slit 213 Allows for flexible circuit boards to pass through.
  • the first functional module is installed outside the first housing cavity 81, the first functional module includes devices such as a first circuit board 12 (printed circuit board, PCB), a processor, a memory, and a communication module, and the processor, the memory, and the communication module are integrated On the first circuit board 12, the memory and the communication module are electrically connected to the processor respectively, the memory is used to store instructions and data, the communication module can realize wireless communication such as 3G/4G/5G of the mobile phone, and the communication module can also realize wireless communication of the mobile phone.
  • Wireless communications such as wireless local area networks (WLAN), Bluetooth (BT) and near field communication (NFC).
  • the first functional module may also include devices for realizing other functions, which are not listed here.
  • the second main body 2 includes a second housing 21 and a second functional module (not numbered in the figure), the second functional module is used to electrically connect the second main body 2 to the first main body 1, so that the second main body 2
  • the two main bodies 2 and the first main body 1 can transmit information
  • the second housing 21 is provided with a second accommodating cavity 82 .
  • the second housing 21 includes a second middle frame 211 and a second support plate 212, the second middle frame 211 and the second support plate 212 form the second accommodation cavity 82, and the second support plate 212 has a first Two surfaces, the second surface is used to support the display screen 4 .
  • the second functional module is installed outside the second accommodating chamber 82, and the second functional module includes components such as the second circuit board 22, battery, antenna, motor and sensor module, and the antenna, motor and sensor module are integrated on the second circuit board 22
  • the battery and the second circuit board 22 are stacked or arranged side by side. The stacked arrangement can save space, and the side-by-side arrangement can prevent the heat emitted by the two from accumulating with each other, causing the mobile phone to heat up.
  • the battery provides power for other devices such as the motor, sensor module, antenna, and display 4 to ensure the normal use of the mobile phone.
  • the motor can generate vibration prompts, which can be used specifically for incoming call vibration prompts, and can also be used for touch vibration feedback.
  • the sensor module includes a gyroscope Sensors and temperature sensors, etc.
  • the gyroscope sensor can be used to determine the movement posture of the mobile phone, and the temperature sensor is used to detect the temperature, so that the processor can execute the temperature processing strategy according to the temperature detected by the temperature sensor to prevent the mobile phone from overheating or abnormality due to low temperature.
  • the second functional module may also include devices for realizing other functions, which are not listed here.
  • the rotating shaft part 3 is a hinge, which is connected between the first housing 11 and the second housing 21, which is equivalent to the rotation structure between the first housing 11 and the second housing 21, so as to realize the first The first casing 11 and the second casing 21 are relatively free to rotate and relatively foldable.
  • the rotating shaft part 3 includes two hinges, and the two hinges are respectively arranged on both sides of the mobile phone along the Y-axis direction; or, the rotating shaft part 3 includes a hinge, and in the Y-axis direction, the hinge extends from one side of the mobile phone to The other side.
  • the rotating shaft part 3 is two connected and relatively rotatable rotating shafts, one of which is rotatably connected with the first housing 11, and the other is rotatably connected with the second housing 21, so as to realize the first housing The body 11 and the second housing 21 rotate relatively.
  • the rotating shaft part 3 may also be a rotating structure of other structures, as long as the first housing 11 and the second housing 21 can be relatively freely rotated and folded without damaging the display screen.
  • the display screen 4 is a flexible display screen, which can be bent, folded and twisted at will.
  • the display area is larger, which is convenient for users to watch and improves user experience.
  • the display screen 4 is in the closed state, the display area is small, which is convenient for the user to operate with one hand and to store and carry.
  • the middle shell 5 is installed between the first shell 11 and the second shell 21, specifically, the first shell 11 has a first groove 83, and the second shell 21 has a second groove 84 , the first groove 83 of the first housing 11 is opposite to the second groove 84 of the second housing 21, the first groove 83 of the first housing 11 communicates with the first receiving chamber 81, and the second housing 21
  • the second groove 84 communicates with the second accommodating cavity 82
  • the middle shell 5 is installed in the first groove 83 and the second groove 84 .
  • the first accommodating chamber 81, the second accommodating chamber 82, the first groove 83, and the second groove 84 communicate to form the accommodating chamber 8. In order to distinguish the various parts of the accommodating chamber 8, in FIG.
  • the middle shell 5 includes a support groove 51 and an appearance surface 52 facing away from the support groove 51 .
  • the opening of the support groove 51 faces the accommodating chamber 8 .
  • the appearance surface 52 faces away from the accommodating chamber 8.
  • the middle case 5 is made of hard plastic, so that the weight of the mobile phone can be reduced. At this time, the shaft passing part of the flexible circuit board 6 can be bonded and fixed with the middle case 5 .
  • the middle shell 5 is made of metal or alloy that can be absorbed by magnetic parts. At this time, the shaft passing part of the flexible circuit board 6 can be fixed with the middle shell 5 by magnetic force, without bonding, and can be Simplifies the difficulty of assembling electronic devices.
  • FIG. 4 is a schematic structural diagram of the flexible circuit board shown in FIG. 3 .
  • the flexible circuit board 6 is usually made of polyimide or polyester film as the base material, and has the characteristics of being free to bend, fold and twist.
  • the flexible circuit board 6 is used to connect the first circuit board 12 and the second circuit board 22,
  • the device in the first functional module and the device in the second functional module can be electrically connected and communicated.
  • the flexible circuit board 6 includes a first connecting section 61, a first extending section 62, a shaft passing section 63, a second extending section 64, and a second connecting section 65, which are sequentially connected along the X-axis direction.
  • the first extending section 62 , the shaft-through section 63 and the second extension section 64 are located inside the housing chamber 8, specifically, the first extension section 62 is located in the first accommodation chamber 81, and the shaft-through section 63 is located in the first groove 83 and the second groove In the groove 84 , the second extension section 64 is located in the second accommodation chamber 82 , and the first connecting section 61 and the second connecting section 65 are located outside the accommodation chamber 8 .
  • the side of the first connection section 61 close to the first extension section 62 is located in the first gap, and the side of the second connection section 65 close to the second extension section 64 is located in the second slot 213 .
  • the first connecting section 61 extends out of the first receiving chamber 81 and is connected to the first circuit board 12, and the first connecting section 61 is welded and fixed to the first circuit board 12, so that the flexible circuit board 6 is connected to the first circuit board 12 .
  • the first connecting section 61 is provided with a first golden finger (not shown in the figure), and the first golden finger is formed by a plurality of conductive contacts plated with gold on the surface, arranged in a finger shape, and the first connecting section 61 and the first circuit board 12 For stacking, the first golden finger is soldered to the first circuit board 12 to realize the electrical connection between the flexible circuit board 6 and the first circuit board 12 .
  • the first extension section 62 is connected between the first connection section 61 and the shaft passing section 63, the first extension section 62 is located in the first accommodation cavity 81, and has Features, when the mobile phone is folded or unfolded, the first extension section 62 can be independently bent and deformed to adapt to the displacement changes when the first body 1 and the second body 2 are bent or opened, and avoid breaking the flexible circuit board 6 .
  • the shaft passing section 63 is located at the rotating shaft part 3, so that the flexible circuit board 6 passes through the rotating shaft part 3 to realize the electrical connection between the first main body 1 and the second main body 2.
  • a reinforcing plate 7 is provided on one surface of the rotating shaft part 3, The reinforcing plate 7 is bonded and fixed to the surface of the shaft passing section 63.
  • the reinforcing plate 7 can increase the structural strength of the shaft passing section 63 and prevent the shaft passing section 63 from breaking when the mobile phone is repeatedly folded and opened. Before the flexible circuit board 6 is assembled on the mobile phone, the reinforcing plate 7 has been pre-bonded on the shaft passing section of the flexible circuit board 6 .
  • FIG. 5 is an enlarged view of A in FIG.
  • the second connecting section 65 extends out of the second receiving cavity 82 and connects with the second circuit board 22 , so that the flexible circuit board 6 is connected with the second circuit board 22 ,
  • the second connection section 65 is welded and fixed to the second circuit board 22.
  • the second connection section 65 is provided with a second gold finger, and the second gold finger is formed by a plurality of conductive contacts plated with gold on the surface, arranged in a finger shape. The lamination of the second connecting section 65 and the second circuit board 22 , and the soldering of the second gold finger to the second circuit board 22 realize the electrical connection between the flexible circuit board 6 and the second circuit board 22 .
  • the first circuit board 12 and the second circuit board 22 are connected through the flexible circuit board 6 to realize the electrical connection between the devices in the first functional module and the devices in the second functional module, for example, in the second functional module
  • Devices such as batteries, antennas, motors, and sensor modules can be connected to the processor in the first functional module through the flexible circuit board 6; the antenna in the second functional module can also be connected to the first functional module through the flexible circuit board 6.
  • the communication module connection is not limited to realize the electrical connection between the devices in the first functional module and the devices in the second functional module, for example, in the second functional module Devices such as batteries, antennas, motors, and sensor modules can be connected to the processor in the first functional module through the flexible circuit board 6; the antenna in the second functional module can also be connected to the first functional module through the flexible circuit board 6.
  • the communication module connection can be used to realize the electrical connection between the devices in the first functional module and the devices in the second functional module, for example, in the second functional module Devices such as batteries, antennas, motors, and sensor modules
  • the first connection section 61 and the first circuit board 12 are fixed by first gold finger welding, and the second connection section 65 and the second circuit board 22 are fixed by second gold finger welding; specifically, the first gold finger and the second gold finger
  • the surfaces of the first connecting section 61 and the second connecting section 65 that are arranged on the flexible circuit board can also be arranged on the surfaces of the first circuit board 12 and the second circuit board 22, as long as the flexible circuit board 6 and the first circuit board 12 are realized
  • the electrical connection with the second circuit board 22 is sufficient.
  • the electrical connection is realized through gold fingers, so that the thickness of the connection between the flexible circuit board 6 and the first circuit board 12 and the thickness of the connection between the flexible circuit board 6 and the second circuit board 22 are greatly reduced, compared with the traditional use of board-to-board connectors (board to board, BTB) connection, the embodiment of the present application is fixed by welding, and the thickness of the connection is less than or equal to 0.3mm, thereby improving the compactness of the internal components of the mobile phone, improving the space utilization rate, and reducing the cost of the mobile phone.
  • the overall thickness is conducive to the thin and light design of mobile phones.
  • the thickness of the connection between the first circuit board 12 and the flexible circuit board 6, and the thickness of the connection between the second circuit board 22 and the flexible circuit board 6 are greatly reduced.
  • the height of the installation area for the flexible circuit board 6 between the first support board and the first carrier board and the height of the installation area for the flexible circuit board 6 between the second support board and the second carrier board are constant, because the first circuit board 12
  • the total thickness connected to the first connection section 61 is reduced, the total thickness connected to the second circuit board 22 and the second connection section 65 is reduced, and when the flexible circuit board 6 is disassembled and reinstalled, the height reserved for the flexible circuit board 6 to pass through
  • the increased distance in space increases the convenience of disassembling and installing the flexible circuit board 6 .
  • the side of the first middle frame 111 away from the second middle frame 211 is provided with a first bearing plate 113, the first bearing plate 113 is located outside the receiving chamber 8, the first bearing plate 113 includes a first bearing surface 1131 and a second bearing surface 1132 opposite to the first bearing surface 1131 , the first connecting section 61 of the flexible circuit board 6 is stacked on the first bearing surface 1131 of the first bearing board 113 .
  • the side of the second middle frame 211 away from the first middle frame 111 is provided with a second bearing plate 114 , the second bearing plate 114 is located outside the receiving chamber 8 , and the second bearing plate 114 includes a third bearing surface 1141 With the fourth carrying surface 1142 opposite to the third carrying surface 1141 , the second connecting segment 65 of the flexible circuit board 6 is stacked on the third carrying surface 1141 of the second carrying plate 114 .
  • the first bearing surface 1131 of the first bearing plate 113 is provided with a first receiving groove
  • the third bearing surface 1141 of the second bearing plate 114 is provided with a second receiving groove
  • the first receiving groove and the second receiving groove It is respectively used to accommodate the first circuit board 12 and the second circuit board 22, and to accommodate the first connection section 61 of the flexible circuit board 6 with the first golden finger welded with the first circuit board 12, and to connect with the second circuit board. 22 welded the second connecting section 65 of the flexible circuit board 6 provided with the second golden finger, so that the overall thickness of the mobile phone can be saved in the Z-axis direction.
  • FIG. 6 is a schematic plan view of an electronic device provided by another embodiment.
  • the first connecting section 61 of the flexible circuit board 6 is laminated on the second carrying surface 1132 of the first carrying board 113
  • the second connecting section 65 of the flexible circuit board 6 is stacked on the fourth carrying surface 1142 of the second carrying board 114 .
  • FIG. 7 is a schematic diagram of the planar structure of the shaft passing section where the fixed block fixes the flexible circuit board shown in FIG. 3 .
  • the middle case 5 is provided with a fixed block 9 fixedly connected to the middle case 5 .
  • the fixing block 9 can be formed integrally with the middle shell 5 and is a part of the middle shell, or it can be processed and formed separately from the middle shell 5 , and the fixing block 9 is connected with the bottom wall of the support groove 51 of the middle shell 5 .
  • the fixed block 9 has a magnetic magnet
  • the reinforcing plate 7 is made of metal or alloy that can be adsorbed by the magnetic parts.
  • the metal that can be adsorbed by the magnetic parts includes iron, cobalt and nickel, etc., and the alloy that can be adsorbed by the magnetic parts Including iron-nickel alloy, aluminum-iron alloy and alnico alloy, etc., so that the reinforcing plate 7 and the fixing block 9 are magnetically fixed.
  • FIG. 8 is a schematic diagram of the exploded structure of FIG.
  • the shaft section 63 is glued and fixed, and the second reinforcement surface 72 faces the fixed block 9 and is fixedly connected with the fixed block 9 by magnetic force.
  • the reinforcing plate 7 made of metal or alloy that can be absorbed by the magnetic parts has a strong structural strength, which can increase the strength of the shaft passing section 63 and facilitate the overall assembly of the mobile phone.
  • the reinforcing plate 7 also has a magnetic adsorption force between the fixing block 9 , which can fix the flexible circuit board 6 and facilitate the removal of the flexible circuit board 6 .
  • the fixing block 9 has a magnetic surface
  • the reinforcing plate 7 also has a magnetic surface, and the magnetic surface of the fixing block 9 and the magnetic surface of the reinforcing plate 7 can be attracted to each other, so that the reinforcing plate 7 passes through the fixing block 9 fixed.
  • the fixed block 9 has a first fixed surface 91 and a second fixed surface 92 oppositely arranged, the first fixed surface 91 has a first magnetic pole, the second fixed surface 92 has a second magnetic pole, the first magnetic pole and the second magnetic pole
  • the magnetic poles are opposite.
  • the first magnetic pole is N pole
  • the second magnetic pole is S pole.
  • the fixing block 9 generates a magnetic adsorption force on the reinforcing plate 7, thereby fixing the shaft-through section 63 of the flexible circuit board 6.
  • the first magnetic pole is S pole
  • the second magnetic pole is N pole.
  • the first fixing surface 91 faces the reinforcing plate 7 and is magnetically connected with the second reinforcing surface 72 of the reinforcing plate 7
  • the second fixing surface 92 faces the middle shell 5 and is bonded and fixed to the bottom wall of the support groove 51 of the middle shell 5 and/or magnetic fixation.
  • the fixing block 9 is used to fix the reinforcing plate 7 to increase the fixing reliability of the flexible circuit board 6, and the fixing force between the fixing block 9 and the middle shell 5 is greater than the fixing force between the fixing block 9 and the reinforcing plate 7, Prevent the fixing block 9 from loosening during the process of disassembling the flexible circuit board 6 .
  • the middle shell 5 is made of metal or alloy that can be absorbed by magnetic parts, and the second fixing surface 92 of the fixing block 9 is fixed to the bottom wall of the support groove 51 of the middle shell 5 by magnetic force. At this time, the fixing block 9 and the middle shell 5 do not need additional bonding operation, which can increase the convenience of assembly.
  • the middle shell 5 and the fixing block 9 may also be fixed by adhesive force, so as to increase the fixing strength of the fixing block 9 .
  • the middle shell 5 is made of non-magnetic hard plastic, at this time, the second fixing surface 92 of the fixing block 9 is glued and fixed on the bottom wall of the supporting groove 51 .
  • the reinforcing plate 7 is directly fixedly connected to the middle shell 5 , specifically, the second reinforcing surface 72 of the reinforcing plate 7 is bonded or magnetically fixed to the bottom wall of the supporting groove 51 of the middle shell 5 .
  • the second reinforcement surface 72 of the reinforcement plate 7 is magnetically fixed to the bottom wall of the support groove 51 of the middle shell 5, and the second reinforcement surface 72 and the bottom wall of the support groove 51 are both magnetic. The two magnetic surfaces can be attracted to each other, so as to connect the reinforcing plate 7 and the middle shell 5 fixedly. Therefore, the structure of the mobile phone can be simplified and the complexity of the structure of the mobile phone can be reduced.
  • the second reinforcing surface 72 of the reinforcing plate 7 is pasted and fixed to the bottom wall of the support groove 51 of the middle shell 5, and at this time, both the reinforcing plate 7 and the middle shell 5 can be made of lightweight hard plastic , thereby reducing the weight of the mobile phone.
  • the N pole of a magnet is used to approach the display screen 4, and the magnet and the first fixed surface 91 of the N pole generate mutual repulsion, and the mutual repulsion will cause the reinforcement board 7 to be affected.
  • the fixing force between the pressing board 10 and the fixing block 9 on the flexible circuit board 6 is reduced, and when the flexible circuit board 6 is drawn out, the required force is correspondingly reduced, thereby reducing the flexibility.
  • the reinforcing plate 7 includes a supporting piece 73 and a flexible region 74 , wherein the flexible region 74 divides the supporting piece 73 into a plurality of pieces 731 , and the supporting piece 73 is fixedly connected with the fixing block 9 .
  • the flexible area 74 enables the reinforcing plate 7 to realize flexible deformation when the flexible circuit board moves.
  • the flexible area 74 at least enables the reinforcing plate 7 to have a bend along its length direction (Y-axis direction).
  • the length direction of the reinforcing plate 7 is the same as the Y-axis direction of the length direction of the electronic device 1000 .
  • the supporting sheet 73 is made of a metal material with a certain hardness, such as steel plate or other metal plates, and the supporting sheet 73 is used to support the flexible circuit board 6 and strengthen the structural stability of the shaft passing section 63 of the flexible circuit board 6 .
  • the reinforcing plate 7 including the flexible area 74 can ensure that the flexible circuit board 6 can be pulled out without dismantling the machine, thereby preventing damage to the display screen or the shaft structure.
  • FIG. 9 is a schematic diagram of an embodiment of the electronic device shown in FIG. 3 when the supporting piece of the reinforcing board is installed on the flexible circuit board, wherein the supporting piece is two pieces.
  • the supporting piece 73 is specifically two strip-shaped pieces 731.
  • the two pieces 731 When the two pieces 731 are installed on the flexible circuit board 6, the two pieces 731 are fixed to the surface of the shaft passing section 63, and the two pieces 731 are fixed on the surface of the shaft-through section 63, and the X-axis direction Above, there is a gap 741 between the two sheets 731, and there is no rigid component in the gap 741, so the gap 741 forms a flexible region 74 that enables the reinforcing plate 7 to deform in the Y-axis direction.
  • the number and shape of the support pieces 73 can be set in other forms, and the shape and number of the spaces 741 forming the flexible region 74 can also be set in other forms.
  • an adhesive film can be used to bond the support piece 73 of the reinforcing plate 7, that is, the two sheet bodies 731, and then the adhesive film is bonded to the reinforcing plate One side surface of 7 faces the shaft-through section 63 of the flexible circuit board 6 , the reinforcing plate 7 is transferred to the flexible circuit board 6 , and then the adhesive film is removed.
  • the adhesive film is specifically an adhesive tape, a plastic film coated with an adhesive layer, or the like.
  • the support piece 73 is fixedly connected to the fixed block 9 , and the flexible area 74 is not connected to the fixed block 9 , so there is no fixed force between the flexible area 74 and the fixed block 9 .
  • the area that each sheet body of support sheet 73 contacts with fixed block 9 is all less than in the same area, and all sheet bodies constitute the contact area of a whole sheet-shaped reinforcing plate and fixed block 9, so each sheet body and fixed block 9
  • the fixing forces between them are all smaller than in the same area, and all the sheets constitute the fixing force between an integral sheet-shaped reinforcing plate and the fixing block 9, and there is no fixing force between the flexible region 74 and the fixing block 9, thus, the relative Compared with the traditional reinforcing plate, in this embodiment, the fixing force between the reinforcing plate 7 and the fixing block 9 is significantly reduced.
  • the flexible area 74 also enables the reinforcing plate 7 to deform at least in the Y-axis direction, and at this time, the fixing force between the reinforcing plate 7 and the fixing block 9 is dispersed into multiple smaller parts.
  • the flexible circuit board 6 is pulled out, it only needs to overcome a plurality of smaller forces that are dispersed, so the flexible circuit board 6 is pulled out for replacement without disassembling the machine.
  • the back cover of the mobile phone is opened, and at least part of the first connecting section 61 and the second connecting section 65 are in a visible state, and then tools such as tweezers or directly using fingers can be used to check the position.
  • the first connecting section 61 or the second connecting section 65 in the visible state pulls the flexible circuit board 6 out of the first main body 1 and the second main body 2 of the mobile phone along the width direction of the mobile phone (X-axis direction).
  • Fig. 10 is a structural schematic diagram of the bending deformation of the reinforcing plate shown in Fig. 9 driven by the shaft passing section of the flexible circuit board, because the fixing force between the reinforcing plate 7 and the fixing block 9 is small, and The flexible area 74 can cause the reinforcing plate 7 to be bent and deformed.
  • the flexible circuit board 6 moves to drive the flexible area 74 to deform so that the entire reinforcing plate 7 is bent and deformed along its length direction.
  • a support piece 73 can be separated from the fixed block 9 by a relatively small force, and another sheet body 731 can be separated from the fixed block 9 by a relatively small force.
  • the flexible circuit board 6 is pulled out as a whole. During the whole process of pulling out the flexible circuit board 6, there is no need to dismantle the machine, which avoids the disassembly of the display screen 4 or the middle frame, ensures smooth replacement of the flexible circuit board 6, and avoids the need to replace the flexible circuit board. 6, resulting in damage to the display screen or folding structure.
  • the flexible circuit board is pre-assembled with a reinforcement board, and then connect the second connecting section Penetrates into the accommodation chamber 8 through the first slit of the accommodating chamber 8, and after passing above the fixed block 9 in the accommodating chamber 8, the second connecting section passes through the second slit 213 between the second middle frame 211 and the second support plate 212 Pass through the holding chamber 8 .
  • temporarily fix the first connecting section apply force to the second connecting section, so that the second extending section passes through the accommodating chamber 8, until the gap between the reinforcing plate 7 and the fixing block 9 on the passing shaft section is felt.
  • the shaft-through section corresponds to the fixed block 9 and is fixed by adsorption, then the second extension section is re-sent into the accommodation chamber 8, and finally the first connecting section and the first circuit board 12 are welded, and the second extension section is welded.
  • the connection section and the second circuit board 22 complete the reassembly of the flexible circuit board.
  • the rest of the flexible circuit board enters the accommodation chamber through the first gap in turn, and the second connection section Then pass through the second slit from the accommodating chamber 8 , so as to protrude out of the accommodating chamber 8 .
  • the rest of the flexible circuit board passes through the second slit in turn except the second connecting section. 213 into the accommodating chamber, and the first connecting section passes through the first slit from the accommodating chamber 8 , so as to protrude out of the accommodating chamber 8 .
  • FIG. 11 is a schematic structural diagram of a reinforcing plate of an embodiment of the electronic device shown in FIG.
  • a film layer of flexible material in particular a plastic film, forms the flexible region 74 .
  • the reinforcing plate 7 can be directly fixed to the shaft-through section 63 of the flexible circuit board 6 without the aid of additional tools, thereby simplifying the assembly process and saving assembly time.
  • the support piece 73 is a plurality of pieces 731 arranged in an array, and the flexible area 74 is formed when the support piece 73 is mounted on the flexible circuit board 6 .
  • a plurality here means two or more.
  • Figure 12 is a schematic diagram of the supporting sheet of the reinforcing plate of an embodiment of the electronic device shown in Figure 3 installed on the flexible circuit board, wherein the supporting sheet is five sheets, and the supporting sheet 73 is specifically Five elongated pieces 731, when the five pieces 731 are fixed to the shaft passing section 63, in the X-axis direction, there is a long strip-shaped interval 741 between any two adjacent pieces 731, five Each slice 731 forms four intervals 741 , and the four intervals 741 and five slices 731 are alternately distributed in the X-axis direction of the reinforcing plate 7 .
  • FIG. 14 is a schematic diagram of the supporting sheet of the reinforcing plate of an embodiment of the electronic device shown in FIG. 3 when it is installed on the flexible circuit board; wherein the supporting sheet is a plurality of sheets,
  • the supporting sheet 73 is specifically a square sheet body 731 arranged in 10 rows and 5 columns, and there is a space 741 between any two adjacent sheet bodies 731, and the space 741 communicates with each other.
  • the plurality of sheet bodies 731 are arranged randomly, and the shape of the sheet bodies 731 is triangle, circle, pentagon, hexagon, trapezoid, or ellipse. In the present application, plural means two or more.
  • the reinforcing plate 7 is integrally formed and has a plurality of intervals 741 , which can not only increase the convenience of assembly, but also increase the convenience of pulling out the flexible circuit board 6 .
  • FIG. 13 is a structural schematic diagram of the bending deformation of the reinforcing plate shown in Fig. 12 driven by the shaft passing section of the flexible circuit board.
  • the reinforcing plate 7 is deformed at multiple positions, and the position where the deformation occurs is used as the dividing line.
  • the reinforcing plate 7 is equivalent to being drawn out in multiple parts, and when each part is drawn out, the required force is smaller, which can facilitate Pull out the flexible circuit board 6 .
  • the reinforcing plate 7 includes five pieces 731 as shown in FIG. 12 as supporting pieces 73. The difference from the reinforcing plate 7 shown in FIG. The film layer serves as the flexible area 74.
  • the reinforcing board includes a plurality of sheets 731 as shown in FIG. 14 as the supporting sheet 73. The difference from the reinforcing board 7 shown in FIG. The film layer serves as the flexible area 74.
  • the flexible area 74 is made of a film layer of flexible material, the reinforcing plate 7 can be directly fixed to the shaft-through section 63 of the flexible circuit board 6 without the aid of additional tools, thereby simplifying the assembly process and saving assembly time.
  • the flexible area 74 is disposed on the supporting piece 73 of the reinforcing plate 7 .
  • FIG. 15 is a schematic diagram of an embodiment of the electronic device shown in FIG. 3 , where the flexible area of the reinforcing plate is disposed on the supporting sheet of the reinforcing plate, wherein the flexible area includes a hollow area.
  • the flexible region 74 in this embodiment is a hollowed out region 742 provided on the support piece 73 and extending along the Y-axis direction of the reinforcing plate 7 , the axis of the Y-axis direction of the hollowed out region 742 is aligned with the Y-axis direction of the reinforcing plate 7
  • the axes are coincident, and the support piece 73 is a sheet body surrounding the hollow area 742, and the hollow area 742 is in the shape of a strip.
  • the axis in the Y-axis direction of the hollowed out area 742 is staggered from the axis in the Y-axis direction of the reinforcing plate 7 , and the shape of the hollowed out area 742 is ellipse, rectangle or trapezoid.
  • the support piece 73 surrounds the hollow area 742 for a week, which can increase the structural strength of the reinforcing plate 7 and facilitate installation.
  • the contact area between the support piece 73 and the fixed block 9 is smaller than the contact area between the integral sheet-shaped reinforcing plate and the fixed block 9 without a hollow area in the same area, so the fixing between the support piece 73 and the fixed block 9
  • the force is smaller than the fixing force between the integral sheet-shaped reinforcing plate without a hollow area and the fixing block 9 in the same area, and there is no fixing force between the hollow area 742 and the fixing block 9 .
  • the fixing force between the reinforcing plate 7 and the fixing block 9 is obviously reduced.
  • the flexible area 74 also enables the reinforcing plate 7 to deform in the Y-axis direction.
  • the fixing force between the reinforcing plate 7 and the fixing block 9 is dispersed into multiple smaller forces.
  • the flexible circuit board 6 is pulled out, only Multiple smaller forces need to be overcome, so that the flexible circuit board 6 can be pulled out for replacement without dismantling the machine.
  • FIG. 16 is a structural schematic diagram of the bending deformation of the reinforcing plate shown in FIG. 15 driven by the shaft passing section of the flexible circuit board.
  • the flexible area 74 can cause the reinforcing plate 7 to bend and deform, then when the flexible circuit board 6 is pulled out, the flexible circuit board 6 moves to drive the flexible area 74 to deform so that the entire reinforcing plate 7 bends along its length direction Deformation, at this time the two parts of the support piece 73 located on both sides of the hollowed out area 742 can be separated from the fixing block 9 respectively. 6 does not need to be disassembled during the whole process, ensuring smooth replacement of the flexible circuit board 6 and avoiding damage to the display screen or folding structure when the flexible circuit board 6 is replaced.
  • FIG. 17 is a schematic diagram of an embodiment of the electronic device shown in FIG. The hollow area arranged on the X axis.
  • the flexible area 74 is arranged on the support sheet 73 of the reinforcing plate 7, the flexible area 74 is a plurality of hollow areas 742 arranged on the support sheet 73, the support sheet 73 is a sheet body 731, and the plurality of hollow areas 742 are arranged in an array On the sheet 731.
  • the flexible area 74 specifically includes three square hollow areas 742 extending along the Y-axis direction. Specifically, the three hollow areas 742 are distributed at intervals of 741 along the X-axis direction of the sheet body 731.
  • the reinforcing plate 7 can maintain the overall structure and facilitate assembly.
  • FIG. 18, which is the reinforcement plate shown in FIG. Schematic diagram of the structure of the stiffener being bent and deformed by the shaft-through section of the flexible circuit board, bending and deforming at multiple locations along the Y-axis direction, thereby reducing the fixing force between the stiffening plate 7 and the fixing block.
  • FIG. 19 is a schematic diagram of an embodiment of the electronic device shown in FIG. 3, where the flexible region of the reinforcing plate is set on the support sheet of the reinforcing plate, wherein the flexible region includes three hollows arranged along the Y axis area. Specifically, the three hollow areas 742 are distributed along the Y-axis direction of the sheet body 731 at intervals of 741. At this time, the structural strength of the reinforcing plate 7 is relatively strong, and it can be bent and deformed along the Y-axis direction to disperse the reinforcing plate. 7 and the fixed force between the fixed block 9. Or refer to FIG. 20.
  • FIG. 20 is a schematic diagram of an embodiment of the electronic device shown in FIG.
  • the flexible area of the reinforcing plate is set on the support sheet of the reinforcing plate; wherein the flexible area includes a plurality of hollow areas arranged in an array .
  • the flexible area 74 includes an oval-shaped hollow area 742 arranged in 7 rows and 5 columns.
  • a plurality of hollowed out regions 742 are arranged randomly, and the shape of the hollowed out regions 742 is a triangle, a circle, a pentagon, a hexagon, a trapezoid, or an ellipse.
  • the deformable positions of the reinforcing plate 7 increase, and the degree of flexibility increases accordingly.
  • the larger the number of hollowed out areas 742 and the larger the total area the smaller the contact area between the reinforcing plate 7 and the fixed block 9, and the fixing force between the reinforcing plate 7 and the fixed block 9 is further reduced; the reinforcing plate 7 The stronger the degree of flexibility, the more positions where deformation occurs, and the more dispersed the fixing force between the reinforcing plate 7 and the fixing block 9 is.
  • the reinforcing plate 7 is deformed at multiple positions, and the position where the deformation occurs is used as the dividing line, and the reinforcing plate 7 is equivalent to being divided into multiple parts.
  • the required force is smaller, so that the flexible circuit board 6 can be pulled out conveniently.
  • the reinforcing plate 7 includes a supporting sheet 73 and a flexible area as shown in FIG. 15 .
  • the difference from the reinforcing plate 7 shown in FIG. Replace the hollow area shown in Figure 15.
  • the reinforcing plate 7 includes a support piece 73 as shown in FIG. 17 , and the difference from the reinforcing plate 7 shown in FIG. 17 is that flexible materials are arranged at three hollow areas distributed along the X-axis direction The formed film layer serves as the flexible region 74 .
  • the reinforcing plate 7 includes a supporting sheet 73 as shown in FIG. 19 , and the difference from the reinforcing plate 7 shown in FIG.
  • the reinforcing plate 7 includes an integrated support piece 73 as shown in FIG. 20 .
  • the difference from the reinforcing plate 7 shown in FIG. A film layer formed of a flexible material is provided as the flexible region 74 .
  • the reinforcing plate 7 is prepared by a segmentation method or an etching method. Specifically, a hollow area 742 is etched on a complete sheet by an etching method. The hollow area 742 forms a flexible area 74, which is not etched. The corroded sheet body 731 forms the supporting sheet 73, thereby preparing the reinforcing plate 7.
  • the complete sheet material can also be cut into a plurality of sheet bodies 731 by cutting method, some of the sheet bodies 731 are removed, and the remaining sheet bodies 731 are bonded to the flexible circuit board 6, the space 741 between the pieces 731 forms a flexible region 74, and the pieces 731 bonded to the shaft passing section 63 form a supporting piece 73.
  • the length of the reinforcing plate 7 is between 18 mm and 22 mm
  • the width of the reinforcing plate 7 is between 5 mm and 7 mm
  • the thickness of the reinforcing plate 7 is between 0.1 mm and 0.3 mm.
  • the length of the reinforcing plate 7 is 18mm, 19mm, 20mm, 21mm or 22mm
  • the width of the reinforcing plate 7 is 5mm, 6mm or 7mm
  • the thickness of the reinforcing plate 7 is 0.1mm, 0.2mm or 0.3mm.
  • FIG. 21 is a schematic plan view of an electronic device including a laminated board.
  • the electronic device also includes a laminated board 10 , and the length of the laminated board 10 along the Y-axis direction is greater than that of the flexible circuit board 6 along the Y-axis direction.
  • the length of the pressing board 10 is respectively provided with connecting wings at opposite ends along the Y-axis direction, and the pressing board 10 is fixedly connected with the bottom wall of the support groove 51 through the connecting wings.
  • the connecting wings are fixed on the bottom wall of the supporting groove by screws.
  • the pressing plate 10 plays the role of shaping the shaft passing section 63.
  • the shaft passing section 63 will be bent and deformed as the mobile phone is opened and folded.
  • the pressing board 10 can prevent the shaft passing section from repeatedly Wrinkled parts that are difficult to open are formed during the bending deformation process, so as to ensure that the flexible circuit board 6 will not be wrinkled and cause breakage, thereby prolonging the service life of the flexible circuit board 6 .

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Abstract

本申请提供一种电子设备,包括第一主体、第二主体、中壳及柔性电路板;柔性电路板包括穿轴段,穿轴段的表面上设有补强板,补强板包括支撑片和柔性区域,支撑片与穿轴段的一表面层叠固定;柔性区域设于支撑片上,或者将支撑片分隔成多个片体;第一主体和第二主体分别转动连接于中壳的相对两侧;柔性电路板由第一主体延伸至第二主体,以连接第一主体和第二主体,补强板位于中壳内并与中壳固定。柔性区域使补强板具有沿电子设备长度方向变形的能力,相较于相同面积未设置柔性区域的补强板,与中壳之间的固定力减小且被分散,使得柔性电路板可从电子设备内抽出进行更换。

Description

电子设备
本申请要求于2021年10月20日提交中国专利局、申请号为2021112192356、申请名称为“电子设备”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
本申请涉及折叠式通讯设备相关技术领域,尤其涉及一种电子设备。
背景技术
随着科技发展,各式各样的电子设备逐渐成为生活中不可缺少的部分,以手机为例,为了提高用户体验,增加手机的使用功能,手机的显示屏越来越大,为了增加手机显示屏面积的前提下,降低手机的体积,折叠型手机随之产生。
目前的折叠型手机,显示屏利用两个通过折叠结构转动连接的主体支撑,且显示屏通过两个主体可以相对打开或者闭合,实现显示屏的展开和折叠状态。两个主体内分别设有不同的电路模块,为了两个主体内的两个电路模块之间进行电性连接及通信,目前的折叠型手机中设置柔性电路板(flexible print circuit,FPC),通过柔性电路板电性连接两个电路模块。而后续使用过程柔性电路板出现故障需要更换时需要拆卸显示屏和主体,不方便维修和更换。
发明内容
本申请提供一种电子设备,可以解决更换柔性电路板时需要拆卸整机而不便维修的技术问题。
本申请实施例提供的电子设备,包括:第一主体、第二主体、转轴部、显示屏、中壳及柔性电路板。
其中,第一主体通过转轴部与中壳的一侧连接,第二主体通过转轴部与中壳的另一侧连接,显示屏连接于第一主体和第二主体上,电子设备包括连接第一主体、第二主体和中壳的缝隙。转轴部使得第一主体和第二主体均可转动,显示屏具体为柔性的显示屏,可以进行变形和弯折。第一主体和第二主体可相对打开或者闭合,第一主体和第二主体相对打开时,显示屏处于展开状态,显示面积较大,第一主体和第二主体相对闭合时,显示屏处于折叠状态。
柔性电路板位于缝隙内且由第一主体延伸至第二主体,以连接第一主体和第二主体。第一主体包括第一功能模块,第二主体包括第二功能模块,柔性电路板具体连接第一功能模块和第二功能模块,使得第一功能模块和第二功能模块实现电性连接。
柔性电路板包括穿轴段,穿轴段的表面上设有补强板,补强板可以加强穿轴段的强度,防止在电子设备反复打开和闭合过程中导致穿轴部损伤或折断。
补强板位于中壳内,补强板包括支撑片和柔性区域,支撑片背离穿轴段的表面与中壳固定;柔性区域设于支撑片上,或者将支撑片分隔成多个片体,支撑片或者片体与穿轴段的一表面层叠固定。补强板依靠支撑片与中壳固定,柔性区域不与中壳连接,柔性区域与 中壳之间没有固定力。
本实施例中,补强板包括支撑片和柔性区域,因柔性区域与中壳之间没有固定力,那么相较于相同面积的补强板,本实施例中的补强板与中壳之间的固定力明显减小,更换柔性电路板时,需要克服的固定力较小。柔性区域还使得补强板在柔性电路板移动时实现柔性变形,具体的,补强板的柔性区域使得补强板至少可在电子设备的长度方向发生变形和弯折,因此在拆卸柔性电路板时,随着补强板的弯折和变形,补强板和中壳之间的固定力被分散成多个小份,由此可以实现在不拆卸显示屏和主体结构的情况下,将柔性电路板取出并更换,增加了维修和更换柔性电路板的便利性。因不需要拆卸显示屏和主体结构即可更换柔性电路板,可以避免更换柔性电路板时导致显示屏或者中框等损坏,从而延长电子设备的寿命。
一种实施例中,补强板与中壳粘贴固定。具体的,支撑片与中壳粘接固定,安装时,在支撑片背离穿轴部的表面上点胶,柔性电路板安装于电子设备时,点胶部位与中壳接触从而将柔性电路板固定。粘接固定的方式可靠性较高,可以防止穿轴部松脱导致整个柔性电路板移位,避免柔细电路板移位导致第一主体和第二主体电连接不稳定,增加了电连接稳定。
一种实施例中,补强板具有磁性面,中壳具有磁性面,补强板和中壳通过磁性吸附固定。具体的,补强板采用可被磁性件吸附的材料制成,例如采用钢材制成,补强板面朝中壳的表面则为磁性面。在中壳上设置一层磁铁,磁铁面对补强板的表面则为中壳的磁性面。磁铁可对钢材制成的补强板产生吸附力,从而将柔性电路板的穿轴段固定住。
一种实施例中,补强板通过固定块固定于中壳内,固定块具有磁性且固定于中壳内,补强板和固定块之间磁性连接。具体的,固定块为磁石,补强板为钢材制成,补强板具有第一补强面和与第一补强面相背的第二补强面,固定块包括第一固定面和与第一固定面相背的第二固定面,第一固定面的磁极为N极,第二固定面的磁极为S极。第一补强面与柔性电路板的穿轴段粘接固定,以使补强板与柔性电路板固定,第二补强面与第一固定面磁性固定,第二固定面与中壳吸附固定。
通过磁石将补强板固定,既能确保柔性电路板的穿轴段可靠与中壳连接,又能增加柔性电路板拆卸便利性,降低不拆机时抽出柔性电路板的拆卸难度。具体的,需要拆卸柔性电路板时,利用一个磁铁的N极靠近电子设备的显示屏,此时磁铁与固定块的N极产生互斥力,使得固定块对补强板的吸附力减弱,吸附力减弱后,柔性电路板更易从电子设备中抽出。
一种实施例中,支撑片包括多个独立的片体,柔性区域在片体装设于柔性电路板时形成。具体的,多个片体装设于柔性电路板时,间隔排列,每两个相邻的片体之间的间隔形成柔性区域。因相邻的两个片体之间完全间隔开,形成的柔性区域可使补强板具有很强的柔性变形能力,在抽出柔性电路板时,固定补强板的固定力被有效分散,可以降低拆卸柔性电路板的难度。
一种实施例中,支撑片包括两个独立片体,两个独立的片体沿着电子设备的宽度方向间隔装设于柔性电路板的穿轴段上。此时,两个片体之间形成沿着电子设备的长度方向延伸的间隔,此间隔形成柔性区域。包括两个独立片体的补强板,比较容易安装。
一种实施例中,柔性区域为贯穿支撑片的镂空区域。此时,支撑片保持整体状态,可以简化补强板安装至柔性电路板的穿轴段的步骤,增加组装便利性,又能使补强板具有柔性变形能力。
一种实施例中,镂空区域的数量为多个,多个镂空区域规则排布于支撑片上。具体的,多个镂空区域可以按照M行N列的方式规则排布于支撑片上,M和N均为大于或等于1的正整数。多个镂空区域规则排布,使得补强板各个位置的结构强度比较均匀,可以延长补强板的使用寿命。
一种实施例中,多个镂空区域无序的排布。
一种实施例中,支撑片包括多个片体,柔性区域为柔性材料形成的膜层,且每两个相邻的片体之间通过膜层连接。柔性区域设为膜层后,补强板成为一个整体,可以便于补强板和柔性电路板的安装。
一种实施例中,支撑片上设有镂空区域,镂空区域内设有柔性材料形成的膜层,膜层形成柔性区域。膜层形成的柔性区域,使得补强板具有较好的柔性变形能力,从而便于拆卸柔性电路板。
一种实施例中,中壳包括支撑槽和背离支撑槽的外观面,固定块设于支撑槽内,且与支撑槽的底壁固定连接。在第一主体和第二主体相对闭合时,外观面露出,处于可状态,作为电子设备的外观,第一主体和第二主体相对打开时,外观面至少部分被遮挡。设置支撑槽,将固定块收容于支撑槽内,可以节省空间,使得电子设备的结构更加紧凑。
一种实施例中,第一主体和第二主体形成容纳腔室,柔性电路板还包括位于容纳腔室外侧的第一连接段和第二连接段,第一连接段和第二连接段位于柔性电路板的相对两端;穿轴段位于第一连接段和第二连接段之间,穿轴段位于容纳腔室内。第一主体包括位于容纳腔室外侧的第一承载板和第一电路板,第二主体包括位于容纳腔室外侧的第二承载板和第二电路板;第一电路板层叠于第一承载板上,第二电路板层叠于第二承载板上,第一连接段和第二连接段分别与第一电路板和第二电路板电连接。
容纳腔室用于收容柔性电路板的穿轴段、中壳和固定块等部件,可以保护柔性电路板的穿轴段和固定块等部件。
具体的,第一主体包括第一壳体和第一电路板,第一壳体包括第一中框和第一支撑板,第一中框和第一支撑板形成相连通的第一容纳腔和第一凹槽,第一支撑板背离第一中框的表面支撑显示屏;第二主体包括第二壳体和第二电路板,第二壳体包括第二中框和第二支撑板,第二中框和第二支撑板形成相连通的第二容纳腔和第二凹槽,第二支撑板背离第二中框的表面支撑显示屏,第一凹槽和第二凹槽相对且连通;第一容纳腔、第一凹槽、第二容纳腔和第二凹槽形成容纳腔室。中壳安装于第一凹槽和第二凹槽。
柔性电路板还包括第一延伸段和第二延伸段,第一连接段、第一延伸段、穿轴段、第二延伸段和第二连接段沿X轴方向依次连接;第一延伸段位于第一容纳腔内,第二延伸段位于第二容纳腔内。第一延伸段和第二延伸段具有可自由变形弯折的能力,在电子设备打开和闭合过程中,第一延伸段和第二延伸段可随之变形弯折或者展平,以适应电子设备的打开和闭合,防止电子设备打开闭合过程导致穿轴段脱落。
一种实施例中,第一承载板上设有第一容纳槽,第二承载板上设有第二容纳槽,第一 电路板和第一连接段位于第一容纳槽内,第二电路板和第二连接段位于第二容纳槽内。由此,可以节省空间,增加电子设备的结构紧凑性。
一种实施例中,第一电路板与第一连接段通过第一金手指焊接固定,第二电路板与第二连接段通过第二金手指焊接固定。由此,实现第一电路板和柔性电路板的电连接,以及实现第二电路板和柔性电路板的电连接,使得第一主体和第二主体可以实现通信。相较于传统的板对板卡扣固定方式,第一电路板与柔性电路板连接处的厚度,以及第二电路板与柔性电路板连接处的厚度大幅度降低,在第一支撑板和第一承载板之间供柔性电路板安装区域、以及第二支撑板和第二承载板之间供柔性电路板安装区域高度不变的情况,因第一电路板和第一连接段连接的总厚度降低,第二电路板和第二连接段连接的总厚度降低,拆卸和重新安装柔性电路板时,预留给柔性电路板穿过的高度空间上的距离增加,增加拆卸和安装柔性电路板的便利性。
第一电路板和第一连接段连接的总厚度降低幅度较大,第二连接板和第二连接段连接的总厚度降低幅度较大,确保柔性电路板可穿过第一支撑板和第一承载板之间,以及穿过第二支撑板和第二承载板之间的情况下,还可以适当的降低电子设备的厚度,提升电子设备结构紧凑性。
一种实施例中,第一承载板包括第一承载面和与第一承载面相背的第二承载面;第二承载板包括第三承载面和与第三承载面相背的第四承载面;第一电路板层叠于第一承载面或第二承载面上,第二电路板层叠于第三承载面或第四承载面上。由此,增加内部结构设置灵活性,可以根据不同机型适应性选择设计方式。
一种实施例中,第一中框和第一支撑板之间设有第一缝隙,第二中框和第二支撑板之间设有第二缝隙,第一连接段的一部分位于第一缝隙中,第二连接段的一部分位于第二缝隙中;第一缝隙和第二缝隙的高度均大于柔性电路板的厚度。在拆卸和安装柔性电路板时,柔性电路板均需要穿过第一缝隙和第二缝隙,设置第一缝隙和第二缝隙的高度大于柔性电路板的厚度,可以便于柔性电路板拆卸和安装。
具体的,拆卸柔性电路板时,打开电池后盖,可以看到第一连接段和第二连接段的至少部分,以操作第一连接段为例,柔性电路板的其余部位依次穿过第二缝隙、容纳腔室和第一缝隙,最终完全被抽出。安装另一柔性电路板至电子设备上时,柔性电路板的第一连接段依次穿过第二缝隙、容纳腔室和第一缝隙,最终伸出容纳腔室之外,以实现柔性电路板的安装。
一种实施例中,电子设备还包括压合板,压合板与中壳固定连接,压合板具有压合面,压合面朝向穿轴段背离支撑片的表面;在电子设备的厚度方向上,压合面与穿轴段背离支撑片的表面之间具有间距。手机使用过程中,反复打开和折叠,穿轴段会随着手机的打开和折叠而发生弯折变形,压合板可以防止穿轴段反复弯折变形过程中形成难以打开的褶皱部位,确保柔性电路板不会产生褶皱而导致断裂,延长柔性电路板的使用寿命。
压合面与穿轴段背离补强板的表面具有合适的间距,可以利于柔性电路板抽出,且不会导致手机的厚度过厚,间距介于1.3毫米至1.7毫米之间,既能确保压合面对穿轴段定型,防止穿轴段产生褶皱,又能使得电子设备的结构保持紧凑。
附图说明
图1是本申请实施例提供的电子设备一种状态下的结构示意图。
图2是图1所示电子设备折叠状态的结构示意图。
图3是图1所示电子设备的平面结构示意图。
图4是图3中所示柔性电路板的结构示意图。
图5是图3的A处放大图。
图6是另一种实施例提供的电子设备的平面结构示意图。
图7是图3中所示固定块固定柔性电路板的穿轴段的平面结构示意图。
图8是图7分解示意图。
图9是图3中所示电子设备的一种实施例的补强板的支撑片装于柔性电路板时的示意图,其中,支撑片为两个片体。
图10是图9中所示补强板在柔性电路板的穿轴段带动下弯折变形的结构示意图。
图11是图3中所示电子设备的一种实施例的补强板的结构示意图。
图12是图3中所示电子设备的一种实施例的补强板的支撑片装于柔性电路板的示意图,其中支撑片为五个片体。
图13是图12中所示补强板在柔性电路板的穿轴段带动下弯折变形的结构示意图。
图14是图3中所示电子设备的一种实施例的补强板的支撑片装于柔性电路板时的示意图,其中支撑片为多个片体。
图15是图3中所示电子设备的一种实施例的补强板的柔性区域设于补强板的支撑片上的示意图,其中柔性区域包括一个镂空区域。
图16是图15中所示补强板在柔性电路板的穿轴段带动下弯折变形的结构示意图。
图17是图3中所示电子设备的一种实施例的补强板的柔性区域设于补强板的支撑片上的示意图,其中柔性区域包括三个沿X轴排布的镂空区域。
图18是图17中所示补强板在柔性电路板的穿轴段带动下弯折变形的结构示意图。
图19是图3中所示电子设备的一种实施例的补强板的柔性区域设于补强板的支撑片上的示意图,其中柔性区域包括三个沿Y轴排布的镂空区域。
图20是图3中所示电子设备的一种实施例的补强板的柔性区域设于补强板的支撑片的示意图,其中柔性区域包括多个阵列排布的镂空区域。
图21是包括压合板的电子设备的平面结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
请参阅图1和图2,图1是本申请实施例提供的电子设备一种状态下的结构示意图,图2是图1所示电子设备折叠状态的结构示意图。其中图1中所示电子设备1000处于展开状态。
其中,为了便于描述,定义电子设备1000的宽度方向为X轴方向,电子设备1000的长度方向为Y轴方向,电子设备1000的厚度方向为Z轴方向,X轴方向、Y轴方向和Z轴方向两两相互垂直。电子设备1000可以为手机、平板电脑、个人数字助手(personal digital assistant,PDA)、学习机、游戏机、笔记本电脑等电子产品。
本申请实施例以电子设备1000为手机进行说明,手机包括第一主体1、第二主体2、 转轴部3、显示屏4、中壳5、柔性电路板6(图3是图1所示电子设备的平面结构示意图,图3为简要示意图,图中未示意出转轴部3的具体连接情况)。第一主体1和第二主体2分别通过转轴部3与中壳5连接,第一主体1和第二主体2通过转轴部3可相对打开或者闭合。柔性电路板6的穿轴部位固定有补强板7,补强板7与中壳5固定连接,以将柔性电路板6的穿轴部位固定住。
显示屏4连接于第一主体1和第二主体2上,第一主体1和第二主体2相对打开时,第一主体1和第二主体2沿X轴方向并排分布,二者之间的夹角为180度,显示屏4处于展开状态,中壳5被第一主体1和第二主体2遮挡。第一主体1和第二主体2相对闭合时,第一主体1和第二主体2沿Z轴方向层叠分布,二者之间的夹角为0度,显示屏4处于折叠状态,中壳5的一部分裸露在外,且位于第一主体1和第二主体2之间,作为手机外观件。其中的第一主体1和第二主体2夹角为180度和为0度时,是允许有装配使用公差角度范围值存在的,比如179度可以理解为180度,1度可以理解为0度。
第一主体1和第二主体2共同形成容纳腔室8,柔性电路板6的穿轴部位和可变形部位位于容纳腔室8内,中壳5位于第一主体1和第二主体2之间,且部分位于容纳腔室8内或者全部位于容纳腔室8内。柔性电路板6将第一主体1和第二主体2连接,以使第一主体1和第二主体2之间相互通信。
本实施例中,第一主体1包括第一壳体11和第一功能模块(图未标号),第一功能模块用于使第一主体1可与第二主体2进行电性连接,以使第一主体1和第二主体2可以进行信息传输。第一壳体11包括第一中框111和第一支撑板112,第一中框111和第一支撑板112形成第一容纳腔81,第一支撑板112具有背离第一容纳腔81的第一表面,第一表面用于支撑显示屏4。第一中框111和第一支撑板112之间设有第一缝隙,第二中框211和第二支撑板212之间设有第二缝隙213(如图5所示),第一缝隙和第二缝隙213的高度均大于柔性电路板6的厚度,柔性电路板6的厚度、第一缝隙的高度和第二缝隙213的高度均为X轴方向的尺寸,第一缝隙和第二缝隙213可供柔性电路板穿过。
第一功能模块装设于第一容纳腔81外侧,第一功能模块包括第一电路板12(printed circuit board,PCB)、处理器、存储器和通信模块等器件,处理器、存储器和通信模块集成于第一电路板12上,存储器和通信模块分别与处理器电连接,存储器用于存储指令和数据,通信模块可以实现手机的3G/4G/5G等无线通信,通信模块还可以实现手机的无线局域网(wireless local area networks,WLAN)、蓝牙(bluetooth,BT)和近距离无线通信技术(near field communication,NFC)等无线通信。第一功能模块还可以包括其实现其他功能的器件,在此不一一列举。
本实施例中,第二主体2包括第二壳体21和第二功能模块(图未标号),第二功能模块用于使第二主体2与第一主体1进行电性连接,以使第二主体2和第一主体1可以进行信息传输,第二壳体21内设有第二容纳腔82。第二壳体21包括第二中框211和第二支撑板212,第二中框211和第二支撑板212形成第二容纳腔82,第二支撑板212具有背离第二容纳腔82的第二表面,第二表面用于支撑显示屏4。
第二功能模块装设于第二容纳腔82外侧,第二功能模块包括第二电路板22、电池、天线、马达和传感器模块等器件,天线、马达和传感器模块集成于第二电路板22上,电池 与第二电路板22层叠设置或者并列设置,层叠设置可以节省空间,并列设置可以防止二者散发的热量相互累积,导致手机发热。电池为马达、传感器模块、天线和显示屏4等其他器件提供电能,确保手机正常使用,马达可以产生振动提示,具体可以用于来电振动提示,也可以用于触摸振动反馈,传感器模块包括陀螺仪传感器和温度传感器等,陀螺仪传感器可以用于确定手机的运动姿态,温度传感器用于检测温度,以便于处理器根据温度传感器检测的温度执行温度处理策略,防止手机过热或者因低温出现异常。第二功能模块还可以包括其实现其他功能的器件,在此不一一列举。
本实施例中,转轴部3为铰链,其连接在第一壳体11和第二壳体21之间,相当于第一壳体11和第二壳体21之间的转动结构,以实现第一壳体11和第二壳体21相对自由转动和相对折叠。具体的,转轴部3包括两个铰链,两个铰链分别设置在手机沿Y轴方向的两侧;或者,是转轴部3包括一个铰链,在Y轴方向上,铰链从手机的一侧延伸至另一侧。在其他实施例中,转轴部3为两个相连接且可相对转动的转轴,其中一个转轴与第一壳体11转动连接,另一个转轴与第二壳体21转动连接,以实现第一壳体11和第二壳体21相对转动。在其他实施例中,转轴部3还可以是其他结构的转动结构,只要可以实现第一壳体11和第二壳体21相对自由转动和相对折叠,且不会损坏显示屏即可。
本实施例中,显示屏4为柔性显示屏,具有可随意弯曲、折叠和扭曲的性能。显示屏4处于展开状态时,显示面积较大,便于用户观看,提升了用户体验。显示屏4处于闭合状态时,显示面积较小,可便于用户单手操作以及方便收纳和携带。
本实施例中,中壳5安装于第一壳体11和第二壳体21之间,具体的,第一壳体11具有第一凹槽83,第二壳体21具有第二凹槽84,第一壳体11的第一凹槽83和第二壳体21的第二凹槽84相对,第一壳体11的第一凹槽83与第一容纳腔81连通,第二壳体21的第二凹槽84与第二容纳腔82连通,中壳5安装于第一凹槽83和第二凹槽84。第一容纳腔81、第二容纳腔82、第一凹槽83、第二凹槽84连通形成容纳腔室8,为便于区分容纳腔室8的各个部分,图3中在容纳腔室8内以虚线标志各个部分之间的界限。中壳5包括支撑槽51和与支撑槽51背向设置的外观面52,支撑槽51的开口朝向容纳腔室8,支撑槽51的底壁用于柔性电路板6的穿轴部位。外观面52背离容纳腔室8,在第一壳体11和第二壳体21相对打开时,外观面52被第一壳体11和第二壳体21部分结构遮挡;当第一壳体11和第二壳体21相对闭合时,外观面52裸露在外,且位于第一壳体11和第二壳体21之间。本实施例中,中壳5采用硬质塑料制成,从而可以降低手机的重量,此时柔性电路板6的穿轴部位可以与中壳5粘接固定。在其他实施例中,中壳5采用可被磁性件吸附的金属或者合金制成,此时,柔性电路板6的穿轴部位可以与中壳5利用磁性力吸附固定,无需进行粘接,可以简化组装电子设备的难度。
参阅图4,图4是图3中所示柔性电路板的结构示意图。柔性电路板6通常以聚酰亚胺或聚酯薄膜为基材制成,具有可自由弯曲、折叠和扭曲的特性,柔性电路板6用于连接第一电路板12和第二电路板22,以使第一功能模块中的器件和第二功能模块中的器件可进行电性连接及通信。具体的,柔性电路板6包括沿着X轴方向依次连接的第一连接段61、第一延伸段62、穿轴段63、第二延伸段64和第二连接段65,第一延伸段62、穿轴段63和第二延伸段64均位于容纳腔室8的内部,具体的,第一延伸段62位于第一容纳腔81内, 穿轴段63位于第一凹槽83和第二凹槽84内,第二延伸段64位于第二容纳腔82内,第一连接段61和第二连接段65均位于容纳腔室8的外侧。第一连接段61靠近第一延伸段62一侧位于第一缝隙中,第二连接段65靠近第二延伸段64一侧位于第二缝隙213中。
其中,第一连接段61伸出第一容纳腔81外与第一电路板12连接,第一连接段61与第一电路板12焊接固定,从而使得柔性电路板6与第一电路板12连接。具体的,第一连接段61设有第一金手指(图未示),第一金手指为表面镀金的多个导电触片如手指状排列形成,第一连接段61与第一电路板12层叠,第一金手指与第一电路板12焊接实现柔性电路板6与第一电路板12的电性连接。第一延伸段62连接在第一连接段61和穿轴段63之间,第一延伸段62位于第一容纳腔81中,且具有可在第一容纳腔81内自由弯曲、折叠和扭曲的特性,在手机折叠或者展开时,第一延伸段62可独立发生弯曲变形,以适应第一主体1和第二主体2弯折或者打开时产生的位移变化,避免拉断柔性电路板6。
穿轴段63位于转轴部3处,使得柔性电路板6穿过转轴部3,实现第一主体1和第二主体2的电性连接,转轴部3的一表面上设有补强板7,补强板7与穿轴段63的表面粘接固定,补强板7可以增加穿轴段63的结构强度,防止穿轴段63在手机反复折叠打开过程中发生断裂情况。柔性电路板6组装至手机上之前,补强板7已经预先粘接于柔性电路板6的穿轴段上。补强板7背离穿轴段63的表面与中壳5固定连接,可以防止柔性电路板6的位置发生偏移。第二延伸段64位于第二容纳腔82中,且具有可在第二容纳腔82内自由弯曲、折叠和扭曲的特性,在手机折叠或展开时,第二延伸段64可独立发生弯曲变形,以适应第一主体1和第二主体2弯折或者打开时产生的位移变化,避免拉断柔性电路板6。参阅图5,图5是图3的A处放大图,第二连接段65伸出第二容纳腔82外与第二电路板22连接,从而使得柔性电路板6与第二电路板22连接,第二连接段65与第二电路板22焊接固定,具体的,第二连接段65上设有第二金手指,第二金手指为表面镀金的多个导电触片如手指状排列形成,第二连接段65与第二电路板22的层叠,第二金手指与第二电路板22焊接实现柔性电路板6与第二电路板22的电性连接。
本实施例中,第一电路板12和第二电路板22通过柔性电路板6连接,以实现第一功能模块中的器件和第二功能模块中的器件的电连接,例如第二功能模块中的电池、天线、马达和传感器模块等器件,均可以通过柔性电路板6与第一功能模块中的处理器连接;第二功能模块中的天线还可以通过柔性电路板6与第一功能模块中的通信模块连接。
第一连接段61与第一电路板12通过第一金手指焊接固定,第二连接段65与第二电路板22通过第二金手指焊接固定;具体的,第一金手指和第二金手指设于柔性电路板的第一连接段61和第二连接段65的表面,也可以设于第一电路板12和第二电路板22的表面,只要实现柔性电路板6和第一电路板12和第二电路板22的电性连接即可。通过金手指实现电连接,使柔性电路板6和第一电路板12连接处厚度、柔性电路板6和第二电路板22连接处厚度均大幅度降低,相较于传统使用板对板连接器(board to board,BTB)连接的方式,本申请实施例采用焊接方式固定,连接处厚度小于或等于0.3mm,由此,提升了手机内部器件结构紧凑性,提升了空间利用率,降低了手机的整体厚度,利于手机轻薄化设计。另外,相较于传统的板对板卡扣固定方式,第一电路板12与柔性电路板6连接处的厚度,以及第二电路板22与柔性电路板6连接处的厚度大幅度降低,在第一支撑板和第一承 载板之间供柔性电路板6安装区域、以及第二支撑板和第二承载板之间供柔性电路板6安装区域高度不变的情况,因第一电路板12和第一连接段61连接的总厚度降低,第二电路板22和第二连接段65连接的总厚度降低,拆卸和重新安装柔性电路板6时,预留给柔性电路板6穿过的高度空间上的距离增加,增加拆卸和安装柔性电路板6的便利性。
如图3所示,本实施例中,第一中框111远离第二中框211的一侧设有第一承载板113,第一承载板113位于容纳腔室8的外侧,第一承载板113包括第一承载面1131和与第一承载面1131相背的第二承载面1132,柔性电路板6的第一连接段61层叠于第一承载板113的第一承载面1131上。参阅图5,第二中框211远离第一中框111的一侧设有第二承载板114,第二承载板114位于容纳腔室8的外侧,第二承载板114包括第三承载面1141和与第三承载面1141相背的第四承载面1142,柔性电路板6的第二连接段65层叠于第二承载板114的第三承载面1141上。
一种实施方式中,第一承载板113的第一承载面1131设置第一容纳槽,第二承载板114的第三承载面1141上设置第二容纳槽,第一容纳槽和第二容纳槽分别用于收容第一电路板12和第二电路板22,以及收容与第一电路板12焊接的设有第一金手指的柔性电路板6的第一连接段61,和与第二电路板22焊接的设有第二金手指的柔性电路板6的第二连接段65,如此在Z轴方向上可以节省手机的整机厚度。
在其他实施例中,参阅图6,图6是另一种实施例提供的电子设备的平面结构示意图。柔性电路板6的第一连接段61层叠于第一承载板113的第二承载面1132上,柔性电路板6的第二连接段65层叠于第二承载板114的第四承载面1142上。
参阅图7,图7是图3中所示固定块固定柔性电路板的穿轴段的平面结构示意图,本实施例中,中壳5上设有与中壳5固定连接的固定块9。具体的,固定块9可以与中壳5一体加工成型,属于中壳的一部分,也可以与中壳5分体加工成型,固定块9与中壳5的支撑槽51的底壁连接。柔性电路板6的穿轴段63与补强板7预先组装完成后,补强板7通过固定块9与中壳5固定连接,拆卸柔性电路板6时,补强板7与柔性电路板6一并拆卸。
具体的,固定块9具有磁性的磁石,补强板7采用可被磁性件吸附的金属或者合金制成,可被磁性件吸附的金属包括铁、钴和镍等,可被磁性件吸附的合金包括铁镍合金、铝铁合金和铝镍钴合金等,以便补强板7与固定块9通过磁性固定。参阅图8,图8是图7的分解结构示意图,补强板7具有相背设置的第一补强面71和第二补强面72,第一补强面71与柔性电路板6的穿轴段63粘接固定,第二补强面72朝向固定块9,且与固定块9通过磁性力固定连接。可被磁性件吸附的金属或合金制成的补强板7结构强度较强,可以提高穿轴段63的强度,方便手机的整体组装。补强板7还与固定块9之间具有磁性吸附力,可以固定柔性电路板6,且便于拆卸柔性电路板6。在其他实施例中,固定块9具有磁性面,补强板7也具有磁性面,固定块9的磁性面和补强板7的磁性面可以相互吸附,从而将补强板7通过固定块9固定。
本实施例中,固定块9具有相对设置的第一固定面91和第二固定面92,第一固定面91具有第一磁极,第二固定面92具有第二磁极,第一磁极和第二磁极相反。具体的,第一磁极为N极,第二磁极为S极。由此,使得固定块9对补强板7产生磁性吸附力,从而 将柔性电路板6的穿轴段63固定。在其他实施例中,第一磁极为S极,第二磁极为N极。第一固定面91朝向补强板7,与补强板7的第二补强面72磁性连接,第二固定面92朝向中壳5,与中壳5的支撑槽51的底壁粘接固定和/或磁性固定。固定块9用于固定补强板7,以增加柔性电路板6的固定可靠性,并且固定块9与中壳5之间的固定力大于固定块9与补强板7之间的固定力,防止拆卸柔性电路板6过程中固定块9松动。
具体的,一种实施方式中,中壳5为可被磁性件吸附的金属或合金制成,固定块9的第二固定面92通过磁性力与中壳5的支撑槽51的底壁固定,此时,固定块9和中壳5无需额外的粘接操作,可以增加组装的便利性。一种实施方式中,中壳5和固定块9之间除了具有磁性力之外,还可以具有粘接力固定,从而增加固定块9固定的强度。一种实施方式中,中壳5为不具有磁性的硬质塑料制成,此时,固定块9的第二固定面92粘接固定于支撑槽51的底壁上。
在其他实施例中,补强板7直接与中壳5固定连接,具体的,补强板7的第二补强面72与中壳5的支撑槽51的底壁粘接或者磁性固定。具体的,一种实施方式中,补强板7的第二补强面72与中壳5的支撑槽51的底壁磁性固定,第二补强面72和支撑槽51的底壁均为磁性面,两个磁性面可以相互吸附,以将补强板7和中壳5固定连接。由此,可以简化手机的结构,降低手机结构复杂程度。一种实施方式中,补强板7的第二补强面72与中壳5的支撑槽51的底壁粘贴固定,此时补强板7和中壳5均可以采用轻质硬塑料制成,从而降低手机的重量。
在柔性电路板6出现故障,需要拆卸柔性电路板6时,利用一个磁铁的N极靠近显示屏4,磁铁与N极的第一固定面91产生互斥力,互斥力会使得补强板7受到的吸附力相应减弱,此时,压合板10和固定块9之间对柔性电路板6的固定力减小,在抽出柔性电路板6时,所需的力相应减小,由此可以降低柔性电路板6被抽出的难度。
本实施例中,补强板7包括支撑片73和柔性区域74,其中,柔性区域74将支撑片73分隔成多个片体731,支撑片73与固定块9固定连接。在柔性电路板6移动时,柔性区域74使得补强板7可在柔性电路板移动时实现柔性变形,具体的,柔性区域74至少使得补强板7具有沿其长度方向(Y轴方向)弯折变形的能力,补强板7的长度方向与电子设备1000的长度方向Y轴方向相同。支撑片73为具有一定硬度的金属材料制成,比如钢板或者其他金属板体,支撑片73用于支撑柔性电路板6,以及加强柔性电路板6的穿轴段63的结构稳定性。包括柔性区域74的补强板7可以确保柔性电路板6在不拆机的情况下被抽出,从而防止损伤显示屏或转轴结构。
本实施例中,参阅图9,图9是图3中所示电子设备的一种实施例的补强板的支撑片装于柔性电路板时的示意图,其中,支撑片为两个片体。具体的,支撑片73具体为两个长条状的片体731,两个片体731安装于柔性电路板6上时,两个片体731与穿轴段63的表面固定,在X轴方向上,两个片体731之间具有间隔741,间隔741处没有刚性部件的存在,因此间隔741处形成了使得补强板7可在Y轴方向变形的柔性区域74。在其他实施例中,支撑片73的数量和形状可以设置为其他形式,形成柔性区域74的间隔741的形状和数量也设置为其他形式。
本实施例中,对补强板7进行组装时,可以利用一粘接膜粘接补强板7的支撑片73, 也就是两个片体731,接着将粘接膜粘接有补强板7的一侧表面面对柔性电路板6的穿轴段63,将补强板7转移至柔性电路板6上,接着去除掉粘接膜。粘接膜具体为胶带、涂抹有胶层的塑料膜等。
本实施例中,支撑片73与固定块9固定连接,柔性区域74未与固定块9连接,因此柔性区域74与固定块9之间没有固定力。支撑片73的每个片体与固定块9接触的面积均小于同样面积内,所有片体构成一个整体片状的补强板与固定块9的接触面积,因此每个片体与固定块9之间的固定力均小于同样面积内,所有片体构成一个整体片状补强板与固定块9之间的固定力,且柔性区域74与固定块9之间没有固定力,由此,相较于传统的补强板,本实施例中,补强板7与固定块9之间的固定力明显减小。另外,在柔性电路板6移动时,柔性区域74还使得补强板7至少可以在Y轴方向发生形变,此时补强板7和固定块9之间的固定力被分散成多个更小的力,抽出柔性电路板6时,仅需要克服被分散成的多个更小的力,因此柔性电路板6在不拆机的情况被抽出而进行更换。
在柔性电路板6故障后需要维修或更换时,打开手机的后盖,第一连接段61和第二连接段65的至少部分处于可视状态,然后可以利用镊子等工具或者直接利用手指对处于可视状态的第一连接段61或第二连接段65用力,沿着手机的宽度方向(X轴方向)将柔性电路板6从手机的第一主体1和第二主体2内抽出。
具体的,先利用工具去除第一连接段61与第一电路板12之间的焊点,或者直接对第一连接段61施力,使得第一连接段61与第一电路板12脱离;然后利用工具去除第二连接段65与第二电路板22之间的焊点,或者对第二连接段65施力,使得第二连接段65与第二电路板22脱离。接着,拉扯第一连接段61,使得靠近第一连接段61的片体与固定块脱离,继续拉扯第一连接段61,使得靠近第二连接段65的片体与固定块脱离,此时,将柔性电路板从左至右(图3中的方向)的抽出来。将柔性电路板6抽出时,除第一连接段61之外,柔性电路板6其余部位依次经过第二缝隙213、容纳腔室8、第一缝隙,最终完全被抽出来。当然,在第一连接段61与第一电路板12脱离,且第二连接段65与第二电路板22脱离后,也可以对第二连接段65施力,将柔性电路板从右至左的抽出来,此时除第二连接段65之外,柔性电路板6的其余部位依次经过第一缝隙、容纳腔室8、第二缝隙213,最终完全被抽出来。
参阅图10,图10是图9中所示补强板在柔性电路板的穿轴段带动下弯折变形的结构示意图,因补强板7和固定块9之间的固定力较小,且柔性区域74可以使得补强板7发生弯折变形,那么抽出柔性电路板6时,柔性电路板6移动,以带动柔性区域74产生形变使得补强板7整体沿其长度方向弯折变形,此时补强板7的固定力被多个支撑片分散,因而可以通过较小的力将一个支撑片73与固定块9分离,再通过较小的力将另一个片体731与固定块9分离,最终将柔性电路板6整体抽出,抽出柔性电路板6的整个过程中无需进行拆机,避免了拆卸显示屏4或中框,确保顺利更换柔性电路板6的同时,避免了更换柔性电路板6时导致显示屏或折叠结构损坏。
抽出故障的柔性电路板后,将另一柔性电路板重新安装于手机上,柔性电路板预先组装有补强板,然后将第二连接段从第一中框111和第一支撑板112之间的第一缝隙中穿入容纳腔室8中,在容纳腔室8中经过固定块9上方后,第二连接段从第二中框211和第二 支撑板212之间的第二缝隙213中穿出容纳腔室8。此时,临时固定住第一连接段,对第二连接段施力,使得第二延伸段穿出容纳腔室8,直至感受到穿轴段上的补强板7与固定块9之间产生吸附力,此时,证明穿轴段与固定块9对应且吸附固定,接着将第二延伸段重新送入容纳腔室8中,最后焊接第一连接段和第一电路板12,焊接第二连接段和第二电路板22,完成柔性电路板的重装,整个过程中,除第一连接段之外,柔性电路板的其余部位依次经过第一缝隙进入容纳腔室中,第二连接段再从容纳腔室8中穿过第二缝隙,从而伸出容纳腔室8之外。当然,也可以首先将第一连接段从第二缝隙213穿入容纳腔室8中,该种安装方法整个过程中,处第二连接段之外,柔性电路板的其余部位依次经过第二缝隙213进入容纳腔室中,第一连接段再从容纳腔室8中穿过第一缝隙,从而伸出容纳腔室8之外。
在其他实施例中,参阅图11,图11是图3中所示电子设备的一种实施例的补强板的结构示意图,柔性区域74可以是连接支撑片73的柔性材料制成,柔性材料具体为塑料薄膜,柔性材料制成的膜层形成柔性区域74。柔性区域74为柔性材料形成的膜层时,补强板7无需额外的工具辅助,可以直接与柔性电路板6的穿轴段63固定,从而简化组装过程,节省组装时间。
在其他实施例中,支撑片73为阵列排布的多个片体731,柔性区域74在支撑片73装于柔性电路板6时形成。此处多个意指两个以上。例如:参阅图12,图12是图3中所示电子设备的一种实施例的补强板的支撑片装于柔性电路板的示意图,其中支撑片为五个片体,支撑片73具体为五个长条状的片体731,五个片体731与穿轴段63固定时,在X轴方向上,任意相邻的两个片体731之间均具有长条状的间隔741,五个片体731形成四个间隔741,四个间隔741和五个片体731在补强板7的X轴方向上交替分布。
在其他实施例中,参阅图14,图14是图3中所示电子设备的一种实施例的补强板的支撑片装于柔性电路板时的示意图;其中支撑片为多个片体,支撑片73具体为成10行5列排布的方形片体731,任意相邻两个片体731之间具有间隔741,间隔741之间相互连通。在其他实施例中,多个片体731无序排布,片体731的形状为三角形、圆形、五边形、六边形、梯形或椭圆形等。本申请中,多个意指两个以上。补强板7整体成型,且具有多个间隔741,既能增加组装便利性,又能增加抽出柔性电路板6的便利性。
支撑片73的片体731数量增加时,形成柔性区域74的间隔741数量随之增加,补强板7可发生形变的位置增加,柔性程度随之加强。形成柔性区域74的间隔741数量越多、总的面积越大,补强板7与固定块9的接触面积越小,补强板7与固定块9之间的固定力越小。补强板7的柔性程度越强,发生形变的位置越多,补强板7和固定块9之间的固定力越分散。因此,参阅图13,图13是图12中所示补强板在柔性电路板的穿轴段带动下弯折变形的结构示意图,在抽出柔性电路板6时,总的固定力减小的前提下,补强板7在多个位置发生形变,以发生形变的位置为分隔线,补强板7相当于分成多个部分被抽出,抽出每一部分时,所需的力更小,从而可以方便的将柔性电路板6抽出。
在其他实施例中,补强板7包括如图12中所示的五个片体731作为支撑片73,与图12中所示补强板7区别在于,四个间隔741处设置柔性材料形成的膜层作为柔性区域74。在其他实施例中,补强板包括如图14中所示的多个片体731作为支撑片73,与图14中所 示补强板7的区别在于,多个间隔741处设置柔性材料形成的膜层作为柔性区域74。柔性区域74采用柔性材料形成的膜层制成时,补强板7无需额外的工具辅助,可以直接与柔性电路板6的穿轴段63固定,从而简化组装过程,节省组装时间。
在一种实施例中,柔性区域74设于补强板7的支撑片73上。具体的,参阅图15,图15是图3中所示电子设备的一种实施例的补强板的柔性区域设于补强板的支撑片上的示意图,其中柔性区域包括一个镂空区域。本实施例中的柔性区域74为设于支撑片73上且沿补强板7的Y轴方向延伸的镂空区域742,镂空区域742的Y轴方向的轴线与补强板7的Y轴方向的轴线重合,支撑片73为环绕镂空区域742一周的片体,镂空区域742为长条状。在其他实施例中,镂空区域742的Y轴方向轴线与补强板7的Y轴方向的轴线错开,镂空区域742的形状为椭圆形、长方形或者梯形。支撑片73环绕镂空区域742一周,可以增加补强板7的结构强度,以及便于安装。
由此,支撑片73与固定块9的接触面积小于同样面积内,未设置镂空区域的整体片状的补强板与固定块9的接触面积,因此支撑片73与固定块9之间的固定力小于同样面积内,未设置镂空区域的整体片状的补强板与固定块9之间的固定力,且镂空区域742与固定块9之间没有固定力。相较于传统的补强板,补强板7与固定块9之间的固定力明显减小。柔性区域74还使得补强板7可以在Y轴方向发生形变,此时补强板7和固定块9之间的固定力被分散成多个更小的力,抽出柔性电路板6时,仅需要克服被分散成的多个更小的力,使得柔性电路板6可以在不拆机的情况被抽出而进行更换。
在柔性电路板6故障后需要维修或更换时,沿着X轴方向将柔性电路板6从手机的第一主体1和第二主体2内抽出。具体的,参阅图16,图16是图15中所示补强板在柔性电路板的穿轴段带动下弯折变形的结构示意图,因补强板7和固定块9之间的固定力较小,且柔性区域74可以使得补强板7发生弯折变形,那么抽出柔性电路板6时,柔性电路板6移动,以带动柔性区域74产生形变使得补强板7整体沿其长度方向弯折变形,此时支撑片73位于镂空区域742两侧的两部分可以分别与固定块9分离,分离每一部分时,所需的力均比较小,最终将柔性电路板6整体抽出,抽出柔性电路板6的整个过程中无需进行拆机,确保顺利更换柔性电路板6的同时,避免了更换柔性电路板6时导致显示屏或折叠结构损坏。
在其他实施例中,参阅图17,图17是图3中所示电子设备的一种实施例的补强板的柔性区域设于补强板的支撑片上的示意图,其中柔性区域包括三个沿X轴排布的镂空区域。其中,柔性区域74设于补强板7的支撑片73上,柔性区域74为设于支撑片73上的多个镂空区域742,支撑片73为片体731,多个镂空区域742阵列排布在片体731上。例如:参阅图17,柔性区域74具体沿Y轴方向延伸的三个方形镂空区域742。具体的,三个镂空区域742沿片体731的X轴方向间隔741分布,此时,补强板7既能保持整体结构便于组装,另外,参阅图18,图18是图17中所示补强板在柔性电路板的穿轴段带动下弯折变形的结构示意图,沿着Y轴方向在多个部位发生弯折变形,从而降低补强板7和固定块之间的固定力。
参阅图19,图19是图3中所示电子设备的一种实施例的补强板的柔性区域设于补强板的支撑片上的示意图,其中柔性区域包括三个沿Y轴排布的镂空区域。具体的,三个镂 空区域742沿片体731的Y轴方向间隔741分布,此时,补强板7的结构强度较强,且能沿着Y轴方向发生弯折变形,以分散补强板7和固定块9之间的固定力。或者参阅图20,图20是图3中所示电子设备的一种实施例的补强板的柔性区域设于补强板的支撑片的示意图;其中柔性区域包括多个阵列排布的镂空区域。具体的,柔性区域74包括呈7行5列排布的椭圆形镂空区域742,此时,补强板7能沿着Y轴方向在多个部位发生弯折变形,以将补强板7和固定块9之间的固定力分散。在其他实施例中,多个镂空区域742无序排布,镂空区域742的形状为三角形、圆形、五边形、六边形、梯形或椭圆形等。
镂空区域742的数量增多时,补强板7可发生形变的位置增加,柔性程度随之加强。设置的镂空区域742数量越多、总的面积越大,补强板7与固定块9的接触面积越小,补强板7与固定块9之间的固定力进一步减小;补强板7的柔性程度越强,发生形变的位置越多,补强板7和固定块9之间的固定力越分散。因此,在抽出柔性电路板6时,总的固定力减小的前提下,补强板7在多个位置发生形变,以发生形变的位置为分隔线,补强板7相当于分成多个部分被抽出,抽出每一部分时,所需的力更小,从而可以方便的将柔性电路板6抽出。
在其他实施例中,补强板7包括如图15中所示的支撑片73及柔性区域,与图15中所示补强板7区别在于,柔性区域为柔性材料形成的膜层制成以替代图15所示的镂空区域。在其他实施例中,补强板7包括如图17中所示的支撑片73,与图17中所示补强板7的区别在于,三个沿X轴方向分布的镂空区域处设置柔性材料形成的膜层作为柔性区域74。在其他实施例中,补强板7包括如图19中所示的支撑片73,与图19中所示补强板7的区别在于,三个沿Y轴方向分布的镂空区域处设置柔性材料形成的膜层作为柔性区域74。在其他实施例中,补强板7包括如图20中所示的连接成一体的支撑片73,与图20中所示补强板7的区别在于,7行5列排布的镂空区域处设置柔性材料形成的膜层作为柔性区域74。柔性区域74采用柔性材料形成的膜层制成时,补强板7无需额外的工具辅助,可以直接与柔性电路板6的穿轴段63固定,从而简化组装过程,节省组装时间。
本实施例中,补强板7采用分割法或者刻蚀法制备,具体的,通过刻蚀法在一完整的片材上刻蚀出镂空区域742,镂空区域742形成柔性区域74,未被刻蚀的片体731形成支撑片73,从而制备成补强板7。当支撑片73为多个片体731时,也可以采用切割法将完整的片材切割成多个片体731,去除掉其中部分片体731,剩下的片体731粘接于柔性电路板6的穿轴段63时,片体731之间的间隔741形成柔性区域74,粘接于穿轴段63的片体731形成支撑片73。
本实施例中,补强板7的长度介于18mm至22mm之间,补强板7的宽度介于5mm至7mm之间,补强板7的厚度介于0.1mm至0.3mm之间。具体的,补强板7的长度为18mm、19mm、20mm、21mm或者22mm,补强板7的宽度为5mm、6mm或者7mm,补强板7的厚度为0.1mm、0.2mm或者0.3mm。
一种实施例中,参阅图21,图21是包括压合板的电子设备的平面结构示意图,电子设备还包括压合板10,压合板10沿Y轴方向的长度大于柔性电路板6沿Y轴方向的长度,压合板10沿Y轴方向相对的两端分别设有连接翼,压合板10通过连接翼与支撑槽51的底壁固定连接。具体的,连接翼通过螺钉固定于支撑槽的底壁上。
具体的,压合板10和支撑槽51的底壁之间具有间隔,固定块9、穿轴段63和补强板7均位于间隔内,压合板10具有朝向补强板7的压合面101,压合面101与穿轴段背离补强板7的表面具有间距,在Z轴方向上,间距大于或1.3毫米,且小于或等于1.7毫米。例如间距为1.3毫米、1.5毫米或者1.7毫米。压合板10起到定型穿轴段63的作用,手机使用过程中,反复打开和折叠,穿轴段63会随着手机的打开和折叠而发生弯折变形,压合板10可以防止穿轴段反复弯折变形过程中形成难以打开的褶皱部位,确保柔性电路板6不会产生褶皱而导致断裂,延长柔性电路板6的使用寿命。压合面101与穿轴段背离补强板7的表面具有合适的间距,可以利于柔性电路板6抽出,且不会导致手机的厚度过厚。
以上,仅为本申请的部分实施例和实施方式,本申请的保护范围不局限于此,任何熟知本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。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. 一种电子设备,其特征在于,包括:第一主体、第二主体、中壳及柔性电路板;
    所述柔性电路板包括穿轴段,所述穿轴段的表面上设有补强板,所述补强板包括支撑片和柔性区域;所述柔性区域设于所述支撑片上,或者将所述支撑片分隔成多个片体,所述支撑片与所述穿轴段的一表面层叠固定;
    所述第一主体和所述第二主体分别转动连接于所述中壳的相对两侧,且所述电子设备包括连接所述第一主体、第二主体及中壳的缝隙;所述柔性电路板位于所述缝隙内且由所述第一主体延伸至所述第二主体,以连接所述第一主体和所述第二主体,所述补强板位于所述中壳内,所述支撑片与所述中壳固定。
  2. 根据权利要求1所述的电子设备,其特征在于,所述支撑片与所述中壳粘贴固定,或者,所述支撑片具有磁性面,所述中壳具有磁性面,所述支撑片和所述中壳通过磁性吸附固定。
  3. 根据权利要求1所述的电子设备,其特征在于,所述电子设备还包括具有磁性的固定块,所述固定块固定于所述中壳内,所述补强板和所述固定块之间磁性连接。
  4. 根据权利要求1至3中任一项所述的电子设备,其特征在于,多个所述片体装于所述柔性电路板,每两个所述片体间隔排列且形成所述柔性区域。
  5. 根据权利要求1至3中任一项所述的电子设备,其特征在于,所述柔性区域为贯穿所述支撑片的镂空区域。
  6. 根据权利要求5所述的电子设备,其特征在于,所述镂空区域的数量为多个,多个所述镂空区域规则排布于所述支撑片上。
  7. 根据权利要求1至3中任一项所述的电子设备,其特征在于,所述支撑片包括多个片体,所述柔性区域为柔性材料形成的膜层,且每两个相邻的所述片体之间通过所述膜层连接。
  8. 根据权利要求1至3中任一项所述的电子设备,其特征在于,所述支撑片上设有镂空区域,所述镂空区域内设有柔性材料形成的膜层,所述膜层形成所述柔性区域。
  9. 根据权利要求1至3中任一项所述的电子设备,其特征在于,所述中壳包括支撑槽,所述支撑片设于所述支撑槽内,且与所述支撑槽的底壁固定连接。
  10. 根据权利要求1至3任一项所述的电子设备,其特征在于,所述第一主体和所述第二主体形成容纳腔室,所述柔性电路板还包括位于所述容纳腔室外侧的第一连接段和第二连接段,所述第一连接段和所述第二连接段位于所述柔性电路板的相对两端;所述穿轴段位于所述第一连接段和所述第二连接段之间,所述穿轴段位于所述容纳腔室内;
    所述第一主体包括位于所述容纳腔室外侧的第一承载板和第一电路板,所述第二主体包括位于所述容纳腔室外侧的第二承载板和第二电路板;所述第一电路板层叠于所述第一承载板上,所述第二电路板层叠于所述第二承载板上,所述第一连接段和所述第二连接段分别与所述第一电路板和所述第二电路板电连接。
  11. 根据权利要求10所述的电子设备,其特征在于,所述第一承载板上设有第一容纳槽,所述第二承载板上设有第二容纳槽,所述第一电路板和所述第一连接段位于所述第一 容纳槽内,所述第二电路板和所述第二连接段位于所述第二容纳槽内。
  12. 根据权利要求10所述的电子设备,其特征在于,所述第一电路板与所述第一连接段通过第一金手指焊接固定,所述第二电路板与所述第二连接段通过第二金手指焊接固定。
  13. 根据权利要求10所述的电子设备,其特征在于,所述第一承载板包括第一承载面和与所述第一承载面相背的第二承载面;所述第二承载板包括第三承载面和与所述第三承载面相背的第四承载面;
    所述第一电路板层叠于第一承载面或所述第二承载面上,所述第二电路板层叠于所述第三承载面或所述第四承载面上。
  14. 根据权利要求10所述的电子设备,其特征在于,所述第一主体包括第一中框和第一支撑板,所述第二主体包括第二中框和第二支撑板,所述第一中框、所述第一支撑板、所述第二中框和所述第二支撑板形成所述容纳腔室;
    所述缝隙包括第一缝隙和第二缝隙,所述第一中框和所述第一支撑板形成所述第一缝隙,所述第二中框和所述第二支撑板形成所述第二缝隙,所述第一连接段的一部分位于所述第一缝隙中,所述第二连接段的一部分位于所述第二缝隙中;所述第一缝隙和所述第二缝隙的高度均大于所述柔性电路板的厚度。
  15. 根据权利要求1至3中任一项所述的电子设备,其特征在于,所述电子设备还包括压合板,所述压合板与所述中壳固定连接,所述压合板具有压合面,所述压合面朝向所述穿轴段背离所述支撑片的表面;在所述电子设备的厚度方向上,所述压合面与所述穿轴段背离所述支撑片的表面之间具有间距。
PCT/CN2022/115773 2021-10-20 2022-08-30 电子设备 WO2023065831A1 (zh)

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