WO2022002212A1 - 按键结构及电子设备 - Google Patents

按键结构及电子设备 Download PDF

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Publication number
WO2022002212A1
WO2022002212A1 PCT/CN2021/104069 CN2021104069W WO2022002212A1 WO 2022002212 A1 WO2022002212 A1 WO 2022002212A1 CN 2021104069 W CN2021104069 W CN 2021104069W WO 2022002212 A1 WO2022002212 A1 WO 2022002212A1
Authority
WO
WIPO (PCT)
Prior art keywords
key
mounting seat
structure according
seat
switch device
Prior art date
Application number
PCT/CN2021/104069
Other languages
English (en)
French (fr)
Inventor
杨荣广
何谦
赵梦龙
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to US18/004,146 priority Critical patent/US20230266717A1/en
Priority to EP21833417.5A priority patent/EP4163943A4/en
Publication of WO2022002212A1 publication Critical patent/WO2022002212A1/zh

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • G04G17/04—Mounting of electronic components
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/001—Electromechanical switches for setting or display
    • G04C3/005—Multiple switches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/024—Transmission element
    • H01H2221/026—Guiding or lubricating nylon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/024—Transmission element
    • H01H2221/03—Stoppers for on or off position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/058—Actuators to avoid tilting or skewing of contact area or actuator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed

Definitions

  • the present application belongs to the technical field of switches, and more particularly, relates to a key structure and an electronic device.
  • Electronic devices such as smart watches, wristbands or mobile phones, generally have button structures on the surface, and the electronic devices are driven by the button structures.
  • the key structure is generally composed of a switch device and a key part.
  • the switch device is generally installed on the circuit board of the electronic device, the circuit board is installed on the shell of the electronic device, and the key part is generally installed on the shell through a tube seat, and then the key The component is disposed opposite the switching device to drive the switching device.
  • the assembly dimension chain between the key part and the switch device includes the key part, the tube seat, the shell, the circuit board and the switch device, that is, the assembly dimension chain between the key part and the switch device is very long, and the assembly dimension chain
  • the accumulated tolerances of multiple parts in the device lead to poor hand feel of the key components, which eventually leads to difficulties in the management of the electronic device production process and increases the cost.
  • the purpose of the embodiments of the present application is to provide a key structure and an electronic device, which are aimed at solving the technical problem that the key part of the electronic device has a poor feel when pressed.
  • an embodiment of the present application provides a key structure, comprising: a mounting seat, which axially penetrates through a mounting hole on a housing; a key member, which is mounted on the mounting seat, and one end of the key member extends from the mounting seat.
  • the mounting seat penetrates into the casing; the card seat is connected to the mounting seat; the switch device is mounted on the card seat, and the switch device and the end of the key component that protrudes into the casing are aligned.
  • the switch device is connected to the main board; when the button part is pressed toward the switch device, the button part can abut with the switch device to trigger the switch device.
  • the card holder is installed on the installation seat, and then the switch device is installed on the card holder, and the switch device is electrically connected to the main board through the flexible circuit board.
  • the switch device is installed on the card seat, so that the assembly dimension chain between the switch device and the key part only adds the mounting seat and the card seat. Therefore, the accumulated error of the parts between the switch device and the key part can be reduced, the comfort of the key part can be improved, and the difficulty of management in the production process of electronic equipment can be reduced, and the cost can be reduced.
  • the outer peripheral wall of the mounting seat is adapted to the side wall of the mounting hole, and the clamping seat can limit the axial direction of the mounting seat.
  • the mounting seat can be limited in the circumferential direction by the mounting hole, and the mounting seat can also be limited in the axial direction by the clip, so that the mounting seat can be completely limited.
  • a first sealing member abuts between the peripheral wall of the mounting seat and the side wall of the mounting hole. In this way, by disposing the first sealing member, water can be prevented from entering the housing from the gap between the mounting seat and the housing, thereby improving the sealing performance of the electronic device.
  • the card holder is provided with a first insertion block
  • the outer peripheral wall of the mounting seat is provided with a first slot
  • the first insertion block is inserted into the first slot to limit the axial direction of the mounting seat.
  • the card seat is provided with a plurality of first insert blocks arranged oppositely, and the outer peripheral wall of the mounting seat is provided with a plurality of first sockets arranged oppositely, and the first sockets are arranged oppositely.
  • the first inserting blocks can be linearly inserted into the first slots respectively along one direction. In this way, through the insertion and cooperation of the first insert block and the first slot, the axial position limit of the mounting seat can be realized, the mounting seat can be prevented from running in series along the axial direction, and the mounting seat is also formed at the same time.
  • an abutment plate is further provided on the card holder, and the abutment plate can abut against the inner side of the housing when the first insert block is inserted into the first slot. That is, the card seat can be further limited by the abutment between the abutting plate and the inner side of the housing, thereby improving the connection strength between the card seat and the mounting seat.
  • the card holder includes a U-shaped structure
  • the switching device is located in the U-shaped structure
  • a plurality of the first plugs are respectively disposed on both sides of the U-shaped structure
  • a plurality of The abutting plates are respectively disposed on both sides of the U-shaped structure. That is, the entire card holder is formed by a U-shaped structure, two first insert blocks and two abutting plates, and the card holder has a simple structure and is convenient to manufacture.
  • the U-shaped structure, the two first insert blocks and the two abutting plates are integrally formed, and the manufacturing process is simple.
  • the U-shaped structure includes a bottom plate and two side plates, the two side plates are respectively disposed on opposite sides of the bottom plate, the bottom plate and the two side plates enclose a U-shaped groove, and the two first plug
  • the blocks are respectively arranged on the two side plates and extend into the U-shaped groove
  • the two abutting plates are respectively arranged on the two side plates and extend in the opposite direction of the first insert block
  • the two first insert blocks are respectively connected with the first insert block.
  • the two abutment plates are spaced apart.
  • one end of the flexible circuit board is attached to the card holder, and the switch device is attached to the flexible circuit board.
  • one end of the flexible circuit board is provided with a reinforcing plate, the reinforcing plate is attached to the bottom plate by double-sided adhesive, and then the switch device is attached to one end of the flexible circuit board, the structure is simple, and the assembly process is simple.
  • the key component includes a key cap and a drive rod that are connected to each other, the drive rod axially penetrates the mounting seat, and the key cap is sleeved on the mounting seat and is exposed to the housing one end for pressing.
  • a receiving groove communicated with the mounting hole is provided on the outer side of the housing;
  • the mounting seat includes a sleeve body axially penetrating the installation hole, and is connected with the sleeve body and stops
  • the key cap is sleeved on the stop part and at least partially accommodated in the receiving groove; the driving rod is arranged through the sleeve body.
  • the sleeve body and the stopper are integrally connected, that is, the mounting seat can be made of the same material and the same process, and the manufacturing process is simple.
  • a second sealing member abuts between the driving rod and the sleeve body.
  • the keycap is of a non-rotational structure
  • the outer peripheral wall of the keycap is adapted to the inner peripheral wall of the receiving groove
  • the inner peripheral wall of the keycap is compatible with the stopper portion. Compatible with the peripheral wall.
  • the keycap and the bottom of the receiving slot bear at least one elastic piece, and a position corresponding to the at least one elastic piece is provided with an escape hole.
  • the elastic piece is pressed between the keycap and the bottom of the receiving slot, so that the keycap can be pressed, thereby driving the driving rod to drive the switch device or release the switch device.
  • the keycap is provided with a hook
  • the stopper is provided with a step
  • the hook can be hooked on the step after rotation to limit the reset stroke of the keycap .
  • the key cap and the stop part are both rotary structures
  • the card seat is provided with a second insert block
  • the drive rod is provided with a second slot
  • the first The two insert blocks are inserted into the second slot and can slide in the axial direction in the second slot, so as to form a circumferential limit to the key member, prevent the key member from rotating
  • the second insert block can be inserted in the second slot.
  • the second slot slides in the axial direction, that is, the second insert block has a movable space in the second slot, and the movable space is just used to define the movable space of the key member.
  • a connecting plate extends from the U-shaped structure, and a plurality of second insert blocks arranged at intervals extend from the connecting plate to the middle of the U-shaped structure, and opposite sides of the driving rod A plurality of second slots are provided, the second insertion blocks are in one-to-one correspondence with the second slots, and the second insertion blocks are respectively inserted into the second slots.
  • an embodiment of the present application further provides an electronic device, including a housing having a mounting hole and the above-mentioned key structure.
  • the key components of the electronic device have a comfortable feel and a good user experience.
  • FIG. 1 is a three-dimensional schematic diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 2 is a schematic view of the back of the electronic device provided by the embodiment of the present application.
  • FIG. 3 is an exploded schematic diagram of a key structure provided by an embodiment of the present application.
  • FIG. 4 is a schematic cross-sectional view of the key structure in FIG. 1;
  • Fig. 5 is the partial enlarged schematic diagram of A area in Fig. 4;
  • FIG. 6 is a schematic partial cross-sectional view of another angle of the key structure in FIG. 1;
  • Fig. 7 is the structural representation of the card seat in Fig. 3;
  • Fig. 8 is the structural representation of the mounting seat in Fig. 3;
  • Fig. 9 is the structural representation of the key member in Fig. 3.
  • FIG. 10 is an exploded schematic diagram of a key structure provided by another embodiment of the present application.
  • Fig. 11 is a partial enlarged view of region B in Fig. 4;
  • Fig. 12 is the structural schematic diagram of the card holder in Fig. 10;
  • Fig. 13 is the structural schematic diagram of the mounting seat in Fig. 10;
  • FIG. 14 is a schematic structural diagram of the key member in FIG. 10 .
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature.
  • plurality means two or more, unless otherwise expressly and specifically defined.
  • the embodiments of the present application relate to a key structure.
  • the key structure can be applied to electronic equipment to realize control of the electronic equipment, for example, to realize power on/off, volume adjustment, channel selection, and the like.
  • the electronic device can be any product with the above key structure, such as a smart watch, a wristband, a mobile phone, a tablet computer, a TV, a neck-worn Bluetooth headset, a headset, a True Wireless Stereo (TWS) headset, and the like.
  • TWS True Wireless Stereo
  • Flexible circuit board Flexible Printed Circuit, FPC; a highly reliable and excellent flexible printed circuit made of polyimide or polyester film as the base material.
  • Switching Device An electronic component that can open a circuit, interrupt current, or cause it to flow to other circuits.
  • the key structure 100 includes a mounting seat 20 , a key component 30 , a card seat 40 and a switch device 50 .
  • the electronic device includes a housing 10 , a mounting hole 11 is formed on the housing 10 , the mounting seat 20 is mounted in the mounting hole 11 and axially penetrates the mounting hole 11 , the button part 30 is mounted on the mounting seat 20 , and one end of the button part 30 is inserted from the mounting hole 11 .
  • the mounting seat 20 axially penetrates into the interior of the housing 10; the card seat 40 is connected to the mounting seat 20, the switch device 50 is mounted on the card seat 40, and the switch device 50 and the end of the key member 30 that protrudes into the housing 10 are arranged facing each other , the switch device 50 is connected to the main board through the flexible circuit board 60 .
  • the key member 30 When the key member 30 is pressed toward the switch device 50 , the key member 30 can abut against the switch device 50 to trigger the switch device 50 .
  • the key member 30 is mounted on the mounting seat 20, one end of the key member 30 extends into the interior of the housing 10 to trigger the switch device 50, and the other end of the key member 30 is located outside the housing 10 for pressing.
  • the clip 40 It is also mounted on the mounting seat 20, and the switch device 50 is mounted on the card seat 40, that is, the assembly dimension chain between the switch device 50 and the key part 30 is the switch device 50, the mounting seat 20, the card seat 40 and the key part 30.
  • the electronic equipment in the embodiments of the present application refers to the equipment composed of electronic components such as flexible circuit boards, transistors, and electronic tubes, and using electronic technology to play a role, including: mobile phones, MP3, MP4, tablet computers, wristbands, watches, etc.
  • the key structure of the embodiment of the present application can be applied to an electronic device that can install side buttons (eg, the side of an electronic device casing), for example, the side of the casing of a mobile phone or a tablet computer can be installed with a volume
  • side buttons eg, the side of an electronic device casing
  • the key structure 100 can be used as a key of a watch.
  • the key part 30 may be a button.
  • the card holder 40 is installed on the mounting seat 20, the switch device 50 is then installed on the card holder 40, and the switch device 50 is electrically connected to the main board through the flexible circuit board 60.
  • the button member 30 is also installed on the mounting seat 20, that is, the button member 30 and the card seat 40 are installed on the mounting seat 20 at the same time, and then the switch device 50 is installed on the card seat 40, so that the switch device 50 and the card seat 40 are installed.
  • the card holder 40 also provides a reliable fixing structure for the switch device 50 .
  • the outer peripheral wall of the mounting seat 20 is matched with the side wall of the mounting hole 11 , and the clamping seat 40 can limit the axial direction of the mounting seat 20 .
  • the outer peripheral wall of the mounting seat 20 refers to the outer side wall of the mounting seat 20 along the circumferential direction.
  • the mounting hole 11 can meet the peripheral wall of the mounting seat 20 .
  • the axial limit of the mounting seat 20 by the card seat 40 is added, so that the mounting seat 20 can be completely limited.
  • a first sealing member 70 is abutted between the outer peripheral wall of the mounting seat 20 and the side wall of the installation hole 11 , so that the arrangement of the first sealing member 70 can prevent water Entering into the casing 10 from the gap between the mounting seat 20 and the casing 10 improves the sealing performance of the electronic device.
  • the first sealing member 70 is an O-shaped sealing ring
  • an annular first sealing groove 221 is formed on the outer peripheral wall of the mounting seat 20
  • the O-shaped sealing ring is accommodated in the first sealing groove 221 and at least partially protrudes
  • the first sealing groove 221 is pressed against the side wall of the mounting hole 11 to form a sealed connection between the mounting seat 20 and the housing 10 .
  • the first sealing groove 221 can also be provided on the side wall of the mounting hole 11 , and in addition, the number of the first sealing member 70 can be one or more.
  • the card seat 40 is provided with a first insert block 42
  • the outer peripheral wall of the mounting seat 20 is provided with a first slot 222
  • the first insert block 42 It is inserted into the first slot 222 to limit the axial direction of the mounting seat 20 .
  • the card seat 40 is disposed inside the housing 10
  • a first slot 222 is defined on the outer peripheral wall of the end of the mounting seat 20 extending into the inside of the housing 10 . It can realize the axial limit of the mounting seat 20, prevent the mounting seat 20 from running in series along the axial direction, and also form the installation of the card seat 40, and also solve the problem that the circlip is easy to fall in the prior art. problem.
  • the card seat 40 is provided with a plurality of first insertion blocks 42 arranged oppositely, and the outer peripheral wall of the mounting seat 20 is provided with a plurality of first insertion slots 222 arranged oppositely.
  • the first insertion blocks 42 Corresponding one-to-one with the first slots 222 , the first insert blocks 42 can be linearly inserted into the first slots 222 respectively along one direction.
  • the card seat 40 is directly pushed in a straight line toward the mounting seat 20 in one direction until the first inserting blocks 42 are respectively inserted into the first slots 222, respectively.
  • the assembly is simple, the straight line can be inserted, the structure is simple, and the limit is stable.
  • the plurality of first insert blocks 42 provided on the card holder 40 include a first insert block a and a first insert block b, wherein the first insert block a and the first insert block b are disposed opposite to each other, and the The outer peripheral wall is provided with a plurality of first slots 222 arranged oppositely, including: a first slot a and a first slot b, the first slot a and the first slot b are arranged oppositely, wherein the first slot a
  • the first slots a can be inserted in a straight line in one direction
  • the first slots b can be inserted into the first slots b in a straight line in one direction.
  • the card holder 40 is further provided with an abutment plate 43 , and the abutment plate 43 can abut against the shell when the first plug 42 is inserted into the first slot 222
  • the inner side of the body 10 that is, through the abutment between the abutting plate 43 and the inner side of the housing 10 , the card seat 40 can be further limited, thereby improving the connection strength between the card seat 40 and the mounting seat 20 .
  • two abutting plates 43 are provided on the card seat 40 , the two abutting plates 43 are arranged opposite to each other, and the two abutting plates 43 are respectively abutted at different positions inside the housing 10 , so that the card seat 40 is connected to the housing 10 .
  • the body 10 abuts reliably.
  • the card holder 40 includes a U-shaped structure 41 , the switch device 50 is located in the U-shaped structure 41 , and a plurality of first plugs 42 are respectively disposed on both sides of the U-shaped structure 41 , and many The abutting plates 43 are respectively disposed on both sides of the U-shaped structure 41 , that is, the entire card seat 40 is formed by the U-shaped structure 41 , the first plug 42 and the abutting plate 43 , the card seat 40 has a simple structure and is easy to manufacture .
  • the U-shaped structure 41 , the two first insert blocks 42 and the two abutting plates 43 are integrally formed, and in this embodiment, the card seat 40 is formed by bending a metal sheet to form the U-shaped structure 41 ,
  • the two first insert blocks 42 and the two abutting plates 43 have a simple manufacturing process.
  • the U-shaped structure 41 includes a bottom plate 411 and two side plates 412 .
  • the two side plates 412 are respectively disposed on opposite sides of the bottom plate 411 , and the bottom plate 411 and the two side plates 412 are enclosed to form a U-shaped structure.
  • the groove 413, the two first insert blocks 42 are respectively disposed on the two side plates 412 and extend inside the U-shaped groove 413, and the two abutting plates 43 are respectively disposed on the two side plates 412 and extend toward the first insert block 42 extends in the opposite direction, and the two first insert blocks 42 are spaced apart from the two abutting plates 43 respectively.
  • the switch device 50 and one end of the flexible circuit board 60 When installing, first install the switch device 50 and one end of the flexible circuit board 60 on the bottom plate 411 and accommodate it in the U-shaped groove 413 , and then insert the two first plugs 42 into the two first plugs 42 in one direction respectively.
  • the two abutting plates 43 are respectively abutted on the inner side of the housing 10 , so as to realize the installation of the switch device 50 and the card holder 40 .
  • the housing 10 is the middle frame structure of the electronic device, and the complete electronic device is further provided with a front housing 90 and a rear housing 91 , and the front housing 90 and the rear housing 91 are respectively installed in the housing
  • the front side and the rear side of the body 10 , and the front shell 90 and the rear shell 91 are respectively abutted on the front and rear sides of the U-shaped structure 41 , so that the card holder 40 is completely installed and positioned.
  • the front case 90 and the rear case 91 are respectively abutted on the front and rear sides of the side plate 412 .
  • one end of the flexible circuit board 60 is attached to the card holder 40, and the switch device 50 is attached to one end of the flexible circuit board 60.
  • one end of the flexible circuit board 60 is provided with a reinforcing plate 92.
  • the reinforcing plate 92 is attached to the bottom plate 411 through the double-sided adhesive tape 93, and then the switch device 50 is attached to one end of the flexible circuit board 60, the structure is simple, and the assembly process is simple.
  • the key member 30 includes a key cap 31 and a driving rod 32 , and the key cap 31 and the driving rod 32 are connected to each other, specifically, are integrally connected.
  • the drive rod 32 axially penetrates the mounting seat 20 , and the key cap 31 is provided on one end of the mounting seat 20 exposed to the housing 10 for pressing.
  • the outer side of the housing 10 is provided with a receiving groove 12 , the receiving groove 12 communicates with the mounting hole 11 , the receiving groove 12 is surrounded by the mounting hole 11 , and the size of the receiving groove 12 is larger than that of the mounting hole 11 .
  • the mounting seat 20 includes a sleeve body 22 and a stopper portion 21 .
  • the sleeve body 22 is cylindrical and axially penetrates the mounting hole 11
  • the stopper portion 21 is connected with the sleeve body 22
  • the stopper portion 21 stops at one end of the mounting hole 11 and accommodated in the storage slot 12 .
  • the keycap 31 is sleeved on the stopper portion 21 and is at least partially accommodated in the receiving groove 12, and the driving rod 32 is disposed through the sleeve body 22.
  • the keycap 31 is movable, and in order to make the keycap 31 easy to be pressed by a human hand, the keycap 31 31 generally partially protrudes out of the receiving slot 12 .
  • the sleeve body 22 and the stopper portion 21 are integrally connected, that is, the mounting seat 20 can be manufactured by the same material and the same process, and the manufacturing process is simple.
  • a second sealing member 80 is abutted between the driving rod 32 and the sleeve body 22 , through the setting of the second sealing member 80 , the gap between the key member 30 and the mounting seat 20 is formed.
  • the sealing performance of the entire key structure 100 is good. In real time, its waterproof level can reach 5ATM or even higher, and 5ATM waterproof is the requirement of the key structure 100. Waterproof should meet the atmospheric pressure waterproof level of 5ATM.
  • two second seals 80 are abutted between the drive rod 32 and the sleeve body 22 , and the two second seals 80 are arranged at intervals along the axial direction of the sleeve body 22 , through the arrangement of the two second seals 80 , so that the sealing between the key component 30 and the mounting seat 20 is better.
  • the number of the second sealing members 80 may also be one, three or more than three, which is not limited here.
  • the second sealing member 80 is also an O-ring, a second sealing groove 321 is formed on the outer peripheral wall of the casing 22 , and the second sealing member 80 is accommodated in the second sealing groove 321 . And at least part of it extends out of the second sealing groove 321 to abut against the inner peripheral wall of the driving rod 32 .
  • the keycap 31 is a non-rotating body structure, and the outer peripheral wall of the keycap 31 is adapted to the inner peripheral wall of the receiving groove 12 , and the inner peripheral wall of the keycap 31 and the stopper
  • the outer peripheral wall of the blocking portion 21 is adapted.
  • the outer peripheral wall and the inner peripheral wall here both refer to the outer side wall along the circumferential direction and the inner side wall along the circumferential direction.
  • the circumferential direction of the keycap 31 can be adjusted by limiting the position of the receiving groove 12 and the stopper portion 21 . The position limit can prevent the keycap 31 from rotating in the circumferential direction.
  • At least one elastic member 94 is abutted against the bottom of the key cap 31 and the receiving groove 12 , and an escape hole 211 is provided at a position corresponding to the stopper portion 21 and the at least one elastic member 94 , The elastic member 94 is pressed between the key cap 31 and the bottom of the receiving slot 12 , so that the key cap 31 can be pressed, thereby driving the driving rod 32 to drive the switch device 50 or release the switch device 50 .
  • the keycap 31 is in the shape of a racetrack.
  • the keycap 31 and the bottom of the receiving slot 12 abut two elastic members 94 .
  • the elastic members 94 are springs. between the end and the bottom of the receiving slot 12 .
  • the stopper portion 21 is also in the shape of a racetrack.
  • the stopper portion 21 is provided with avoidance holes 211 corresponding to the positions of the two springs. The two springs pass through the two avoidance holes 211 respectively, and respectively abut against the keycap 31 and the receiving groove 12 . between the bottoms.
  • the key cap 31 is provided with a hook 311
  • the stopper 21 is provided with a step 212
  • the hook 311 can be hooked on the step 212 after rotation to define the key Return stroke of cap 31.
  • the reset stroke of the keycap 31 refers to the stroke of the keycap 31 rebounded by the elastic member 94 after being pressed, that is, when the keycap 31 is pressed, the driving rod 32 will drive the switch device 50 .
  • the elastic member 94 will also compress and store elastic energy.
  • the keycap 31 is released, the keycap 31 rebounds under the elastic pressure of the elastic member 94.
  • the hook 311 on the keycap 31 is hooked to the stop on the step 212 of the blocking portion 21 , thereby preventing the keycap 31 from rebounding too much under the elastic pressure of the elastic member 94 and falling out of the housing 10 .
  • both ends of the keycap 31 in the length direction are respectively provided with hooks 311 extending toward the casing 10 , and two steps 212 are formed on the outer peripheral wall of the stopper 21 .
  • the blocking portion 21 is shifted by an angle in the circumferential direction, and then the key cap 31 is rotated back relative to the blocking portion 21, so that the two hooks 311 can be screwed into the bottom of the two steps 212 correspondingly.
  • the two hooks 311 can Under the action of the elastic member 94 , it stops below the two steps 212 , so as to limit the rebound stroke of the keycap 31 .
  • the key cap 31 and the stopper 21 are both revolving body structures, and correspondingly, the receiving groove 12 is also circular.
  • a second insert block 44 is provided on the card holder 40, and a second slot 322 is provided on the drive rod 32.
  • the second insert block 44 is inserted into the first insert block 44.
  • the two slots 322 form a circumferential limit for the key member 30 to prevent the key member 30 from rotating.
  • the key member 30 can also be limited by means of the second insert block and the second slot, which is not limited here.
  • a connecting plate 45 extends from the bottom plate 411 .
  • the connecting plate 45 extends to the middle of the U-shaped structure 41 with a plurality of second insert blocks 44 arranged at intervals, and two opposite sides of the driving rod 32 are respectively provided with a plurality of second slots 322 , the second insert blocks 44 correspond to the second slots 322 one-to-one, the second insert blocks 44 are respectively arranged in the second slots 322, and the second insert blocks 44 can slide in the axial direction in the second slot 322, That is, the second insert block 44 has a movable space in the second slot 322 , and the movable space is just used to define the movable space of the key member 30 .
  • the plurality of second insert blocks 44 provided on the connecting plate 45 include a second insert block a and a second insert block b, wherein the second insert block a and the second insert block b are arranged at intervals, and the driving rod 32
  • the outer peripheral wall is provided with a plurality of oppositely arranged second slots 322, including: a second slot a and a second slot b, the second slot a and the second slot b are arranged oppositely, wherein the second slot a
  • the second slot a can be inserted in a straight line in one direction
  • the second slot b can be inserted in the second slot b in a straight line in one direction.
  • the elastic member 94 is pressed against the center position of the keycap 31 and the center position of the stopper portion 21 .
  • a center hole 213 is formed in the center of the stopper portion 21
  • the driving rod 32 is disposed through the center hole 213
  • an annular groove 214 communicated with the center hole 213 is formed in the center of the stopper portion 21
  • the elastic member 94 is cylindrical
  • the cylindrical spring is sleeved on the driving rod 32 , one end of the cylindrical spring is pressed against the inner side of the top of the keycap 31 , and the other end of the cylindrical spring is pressed against the bottom of the annular groove 214 .
  • an embodiment of the present application also provides an electronic device, including a casing 10 and the above-mentioned key structure 100, and the electronic device includes, in addition to the above-mentioned key structure 100, a main board and other related structures, a main board and other related structures.
  • the related structures are all arranged in the casing 10 .
  • the key structure 100 involved in the various embodiments is applied to electronic devices such as mobile phones, tablet computers, TVs, neck-worn Bluetooth headsets, headphones, and True Wireless Stereo (TWS) headsets, thereby This makes the key part 30 of the electronic device feel comfortable and user experience is good.
  • electronic devices such as mobile phones, tablet computers, TVs, neck-worn Bluetooth headsets, headphones, and True Wireless Stereo (TWS) headsets

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Abstract

本申请涉及开关技术领域，公开了按键结构及电子设备，该按键结构(100)包括壳体(10)、安装座(20)、按键部件(30)、卡座(40)、开关器件(50)及柔性电路板(60)。其中，安装座(20)安装在壳体(10)上，卡座(40)和按键部件(30)均安装于安装座(20)上，开关器件(50)安装于卡座(40)上，这样，开关器件(50)与按键部件(30)之间的装配尺寸链仅加入了安装座(20)和卡座(40)，从而能够减少开关器件(50)与按键部件(30)之间的零件积累误差，提高按键部件(30)手感的舒适度，同时也降低了电子设备生产过程中管理的难度，降低成本。

Description

按键结构及电子设备
本申请要求于2020年7月3日提交国家知识产权局、申请号为202021295727.4、申请名称为“按键结构及电子设备”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
本申请属于开关技术领域，更具体地说，是涉及一种按键结构及电子设备。
背景技术
电子设备，例如智能手表、手环或手机，一般都会在表面设有按键结构，通过按键结构来驱动该电子设备。按键结构一般通过开关器件和按键部件组成，开关器件一般安装于电子设备的电路板上，电路板安装于电子设备的壳体上，按键部件一般通过一个巴管座安装于壳体上，然后按键部件与开关器件正对设置以驱动开关器件。由于按键部件与开关器件之间的装配尺寸链包括了按键部件、巴管座、壳体、电路板及开关器件，也即是按键部件与开关器件之间的装配尺寸链很长，装配尺寸链中的多个零件积累公差导致按键部件手感不良，最终导致电子设备生产过程管理困难，且增加成本。
发明内容
本申请的实施例的目的在于提供一种按键结构及电子设备，旨在解决电子设备的按键部件按压手感不良的技术问题。
为实现上述目的，本申请实施例采用的技术方案是：
第一方面，本申请实施例提供了一种按键结构，包括：安装座，轴向贯穿位于壳体上的安装孔；按键部件，安装于所述安装座上，且所述按键部件的一端从所述安装座穿入所述壳体内部；卡座，与所述安装座连接；开关器件，安装于所述卡座上，且所述开关器件与所述按键部件伸入壳体内的一端正对设置，所述开关器件与主板连接；在所述按键部件受到朝向所述开关器件方向的压力时，所述按键部件能够与所述开关器件抵接而触发所述开关器件。
本申请实施例提供的按键结构，通过将卡座安装于安装座上，然后将开关器件安装于卡座上，并通过柔性电路板将开关器件电连接至主板，此外，按键部件也安装于安装座上，也即是同时将按键部件和卡座均安装于安装座上，然后将开关器件安装于卡座上，这样，开关器件与按键部件之间的装配尺寸链仅加入了安装座和卡座，从而能够减少开关器件与按键部件之间的零件积累误差，提高按键部件手感的舒适度，同时也降低了电子设备生产过程中管理的难度，降低成本。
在可能的实施例中，所述安装座的外周壁与所述安装孔的侧壁相适配，所述卡座能够对所述安装座的轴向进行限位。这样，即能够通过安装孔对安装座的周向进行限位，还能够通过卡座对安装座进行轴向限位，从而能够将安装座完全限位。
在可能的实施例中，所述安装座的外周壁与所述安装孔的侧壁之间抵持有第一密 封件。这样，通过第一密封件的设置，能够防止水从安装座与壳体的间隙中进入壳体内，提高了电子设备的密封性。
在可能的实施例中，所述卡座上设有第一插块，所述安装座的外周壁上开设有第一插槽，所述第一插块插设于所述第一插槽中以对所述安装座的轴向进行限位。
在可能的实施例中，所述卡座上设有相对设置的多个第一插块，所述安装座的外周壁上开设有相对设置的多个第一插槽，所述第一插槽与所述第一插块一一对应，所述第一插块能够沿一方向分别直线插设于所述第一插槽中。这样，通过第一插块与第一插槽的插接配合，能够实现对安装座的轴向限位，防止安装座沿轴向串动，同时也对卡座形成了安装。
在可能的实施例中，所述卡座上还设有抵接板，所述抵接板在所述第一插块插入所述第一插槽中时能够抵接于所述壳体内侧。也即是通过抵接板与壳体内侧的抵接能够对卡座进一步进行限定，从而提高了卡座与安装座之间的连接强度。
在可能的实施例中，所述卡座包括U型结构，所述开关器件位于所述U型结构中，多个所述第一插块分别设于所述U型结构的两侧，多个所述抵接板分别设于所述U型结构的两侧。也即是整个卡座由U型结构、两个第一插块及两个抵接板形成，该卡座结构简单，制作方便。
在可能的实施例中，U型结构、两个第一插块及两个抵接板为一体成型结构，其制作工艺简单。
在可能的实施例中，U型结构包括底板及两个侧板，两个侧板分别设于底板的相对两侧，底板及两个侧板围合形成有U型槽，两个第一插块分别设于两个侧板上并向U型槽内部延伸，两个抵接板分别设于两个侧板上并向第一插块的反方向延伸，且两个第一插块分别与两个抵接板间隔设置。
在可能的实施例中，所述柔性电路板一端粘贴于所述卡座上，所述开关器件贴设于所述柔性电路板上。具体的是，柔性电路板的一端设有补强板，补强板通过双面胶贴设于底板上，然后开关器件贴设于柔性电路板的一端上，结构简单，且装配工艺简单。
在可能的实施例中，所述按键部件包括相互连接的键帽和驱动杆，所述驱动杆轴向贯穿所述安装座，所述键帽套设于所述安装座外露于所述壳体的一端以供按压。
在可能的实施例中，所述壳体的外侧开设有与所述安装孔连通的收纳槽；所述安装座包括轴向贯穿所述安装孔的套体，以及与所述套体连接并止挡收容于所述收纳槽中的止挡部，所述键帽套设于所述止挡部上并至少部分收容于所述收纳槽中；所述驱动杆贯穿所述套体设置。
在可能的实施例中，套体和止挡部为一体连接结构，即安装座可以通过同一材料及同一工艺制作而成，其制作工艺简单。
在可能的实施例中，所述驱动杆与所述套体之间抵持有第二密封件。通过第二密封件的设置，从而使得按键部件和安装座之间的密封性好，再加上第一密封件的设置，使得整个按键结构的密封性能好，实时上，其防水级别能够达到5ATM甚至更高，其中5ATM防水即是要求该按键结构的防水要满足5ATM的大气压防水程度。
在可能的实施例中，所述键帽为非回转体结构，所述键帽的外周壁与所述收纳槽 的内周壁相适配，所述键帽的内周壁与所述止挡部的外周壁相适配。
在可能的实施例中，所述键帽与所述收纳槽的底部抵持有至少一个弹性件，所述止挡部与所述至少一个弹性件相对应的位置设有避让孔。通过弹性件抵持于键帽与收纳槽的底部之间，便于按压键帽，从而带动驱动杆驱动开关器件或放开开关器件。
在可能的实施例中，所述键帽上设有卡钩，所述止挡部上设有台阶，所述卡钩能够在旋转之后钩于所述台阶上以限定所述键帽的复位行程。
在可能的实施例中，所述键帽与所述止挡部均为回转体结构，所述卡座上设有第二插块，所述驱动杆上设有第二插槽，所述第二插块插于所述第二插槽中并能够在所述第二插槽中沿轴向滑动，从而形成对按键部件的周向限位，防止按键部件旋转，且第二插块能够在第二插槽中沿轴向滑动，也即是第二插块在第二插槽中有活动空间，而该活动空间刚好用于限定按键部件的活动空间。
在可能的实施例中，所述U型结构上延伸有连接板，所述连接板向所述U型结构的中间延伸有间隔设置的多个第二插块，所述驱动杆的相对两侧设有多个第二插槽，所述第二插块与所述第二插槽一一对应，所述第二插块分别插设于所述第二插槽中。
第二方面，本申请实施例还提供了一种电子设备，包括开设有安装孔的壳体以及上述按键结构。
本申请实施例提供的电子设备通过上述按键结构的设置，提高了该电子设备的按键部件手感舒适，用户体验好。
附图说明
图1为本申请实施例提供的电子设备的立体示意图；
图2为本申请实施例提供的电子设备的背面示意图；
图3为本申请实施例提供的按键结构的分解示意图；
图4为图1中按键结构的剖视示意图；
图5为图4中A区域的局部放大示意图；
图6为图1中按键结构另一个角度的局部剖视示意图；
图7为图3中卡座的结构示意图；
图8为图3中安装座的结构示意图；
图9为图3中按键部件的结构示意图；
图10为本申请另一个实施例提供的按键结构的分解示意图；
图11为图4中B区域的局部放大图；
图12为图10中卡座的结构示意图；
图13为图10中安装座的结构示意图；
图14为图10中按键部件的结构示意图。
其中，图中各附图标记：
100、按键结构；10、壳体；11、安装孔；12、收纳槽；20、安装座；21、止挡部；211、避让孔；212、台阶；213、中心孔；214、环形槽；22、套体；221、第一密封槽；222、第一插槽；30、按键部件；31、键帽；311、卡钩；32、驱动杆；321、第二密封槽；322、第二插槽；40、卡座；41、U型结构；411、底板；412、侧板；413、U型槽；42、第一插块；43、抵接板；44、第二插块；45、连接板；50、开关器件；60、 柔性电路板；70、第一密封件；80、第二密封件；90、前壳；91、后壳；92、补强板；93、双面胶；94、弹性件。
具体实施方式
为了使本申请所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件，它可以是直接连接到另一个元件或间接连接至该另一个元件上。
需要理解的是，术语“长度”、“宽度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
本申请实施例涉及按键结构。该按键结构可应用于电子设备中，以实现对电子设备的控制，例如实现开关机、音量大小调节、频道选择等。该电子设备可以为任意具有上述按键结构的产品，例如智能手表、手环、手机、平板电脑、电视、颈戴蓝牙耳机、头戴耳机、真正无线立体声(True Wireless Stereo，TWS)耳机等。
以下对上述实施例涉及到的概念进行说明：
柔性电路板：Flexible Printed Circuit，FPC；是以聚酰亚胺或聚酯薄膜为基材制成的一种具有高度可靠性，绝佳的可挠性印刷电路。
开关器件：是指一个可以使电路开路、使电流中断或使其流到其他电路的电子元件。
如图1至图5，现对本申请实施例提供的按键结构100进行说明。
按键结构100包括安装座20、按键部件30、卡座40及开关器件50。电子设备包括壳体10，壳体10上开设有安装孔11，安装座20安装于安装孔11并轴向贯穿安装孔11，按键部件30安装于安装座20上，且按键部件30的一端从安装座20轴向穿入壳体10内部；卡座40与安装座20连接，开关器件50安装于卡座40上，且开关器件50与按键部件30伸入壳体10内的一端正对设置，开关器件50通过柔性电路板60与主板连接。在按键部件30受到朝向开关器件50方向的压力时，按键部件30能够与开关器件50抵接而触发开关器件50。
具体的，按键部件30安装于安装座20上，按键部件30的一端伸入壳体10内部以触发开关器件50，按键部件30的另一端位于壳体10外侧以供按压，同时，卡座40也安装于安装座20上，开关器件50安装于卡座40上，也即是开关器件50与按键部件30之间的装配尺寸链为开关器件50、安装座20、卡座40及按键部件30。
其中，本申请实施例的电子设备，是指由柔性电路板、晶体管、电子管等电子元器件组成，应用电子技术发挥作用的设备，包括：手机、MP3、MP4、平板电脑、手环、手表等，优选的，本申请实施例的按键结构可应用在可以安装侧按键(如，电子设备壳体的侧边)的电子设备中，例如，手机或平板电脑等的壳体的侧边可安装音量键的按键结构，开关机键的按键结构等，例如，该按键结构100可以作为手表的按键。
例如，按键部件30可以为按钮。
本申请实施例提供的按键结构100，通过将卡座40安装于安装座20上，然后将开关器件50安装于卡座40上，并通过柔性电路板60将开关器件50电连接至主板，此外，按键部件30也安装于安装座20上，也即是同时将按键部件30和卡座40均安装于安装座20上，然后将开关器件50安装于卡座40上，这样，开关器件50与按键部件30之间的装配尺寸链仅加入了安装座20和卡座40，从而能够减少开关器件50与按键部件30之间的零件积累误差，提高按键部件30手感的舒适度，同时也降低了电子设备生产过程中管理的难度，降低成本。此外，卡座40还为开关器件50提供了可靠的固定结构。
在具体的实施例中，请参阅图5及图6，安装座20的外周壁与安装孔11的侧壁相适配，卡座40能够对安装座20的轴向进行限位。具体的，安装座20的外周壁是指安装座20沿周向上的外侧壁，当安装座20的外周壁与安装孔11的侧壁相适配时，安装孔11能够对安装座20的周向进行限位，再加上卡座40对安装座20的轴向限位，从而能够将安装座20完全进行限位。
在具体的实施例中，请参阅图5，安装座20的外周壁与安装孔11的侧壁之间抵持有第一密封件70，这样，通过第一密封件70的设置，能够防止水从安装座20与壳体10的间隙中进入壳体10内，提高了电子设备的密封性。
具体的，第一密封件70为O型密封圈，安装座20的外周壁上开设有环形的第一密封槽221，O型密封圈容置于第一密封槽221中，且至少部分伸出第一密封槽221以抵持于安装孔11的侧壁上，从而形成安装座20与壳体10的密封连接。可以理解地，在本申请的其他实施例中，也可以将第一密封槽221开设于安装孔11的侧壁上，此外，第一密封件70的数量可以是一个，也可以是多个。
在具体的实施例中，请参阅图5、图7及图8，卡座40上设有第一插块42，安装座20的外周壁上开设有第一插槽222，第一插块42插设于第一插槽222中以对安装座20的轴向进行限位。具体是，卡座40设于壳体10内部，安装座20伸入壳体10内部的一端的外周壁上开设有第一插槽222，这样，通过第一插块42与第一插槽222的插接配合，能够实现对安装座20的轴向限位，防止安装座20沿轴向串动，同时也对卡座40形成了安装，此外也解决了现有技术中卡簧易掉的问题。
请参阅图5及图7，卡座40上设有相对设置的多个第一插块42，安装座20的外周壁上开设有相对设置的多个第一插槽222，第一插块42与第一插槽222一一对应，第一插块42能够沿一方向分别直线插设于第一插槽222中。实际安装时，当将安装座20在安装孔11处安装好之后，直接将卡座40沿一个方向向安装座20方向直线推动，直至第一插块42分别对应插入第一插槽222中，其装配简单，直线插入即可，且结构简单，限位稳定。
举例说明，卡座40上设有的多个第一插块42包括第一插块a和第一插块b，其中，第一插块a和第一插块b相对设置，安装座20的外周壁上开设有相对设置的多个第一插槽222包括：第一插槽a和第一插槽b，第一插槽a和第一插槽b相对设置，其中，第一插槽a能够沿一方向分别直线插设于第一插槽a中，第一插槽b能够沿一方向分别直线插设于第一插槽b中。
在具体的实施例中，请参阅图5及图7，卡座40上还设有抵接板43，抵接板43在第一插块42插入第一插槽222中时能够抵接于壳体10内侧，也即是通过抵接板43与壳体10内侧的抵接能够对卡座40进一步进行限定，从而提高了卡座40与安装座20之间的连接强度。
具体的，卡座40上设有两个抵接板43，两个抵接板43相对设置，两个抵接板43分别与壳体10内侧的不同位置抵接，从而使得卡座40与壳体10抵接可靠。
在具体的实施例中，请参阅图5，卡座40包括U型结构41，开关器件50位于U型结构41中，多个第一插块42分别设于U型结构41的两侧，多个抵接板43分别设于U型结构41的两侧，也即是整个卡座40由U型结构41、第一插块42及抵接板43形成，该卡座40结构简单，制作方便。
具体的，U型结构41、两个第一插块42及两个抵接板43为一体成型结构，且在本实施例中，卡座40是由金属片弯折形成上述U型结构41、两个第一插块42及两个抵接板43，其制作工艺简单。
请参阅图5及图7，U型结构41包括底板411及两个侧板412，两个侧板412分别设于底板411的相对两侧，底板411及两个侧板412围合形成有U型槽413，两个第一插块42分别设于两个侧板412上并向U型槽413内部延伸，两个抵接板43分别设于两个侧板412上并向第一插块42的反方向延伸，且两个第一插块42分别与两个抵接板43间隔设置。安装时，先将开关器件50及柔性电路板60的一端均安装于底板411上并收容于U型槽413中，然后将两个第一插块42沿一方向分别插入安装座20的两个第一插槽222中，并使得两个抵接板43分别抵接于壳体10的内侧，从而实现开关器件50及卡座40的安装。
此外，请参阅图1、图2及图6，壳体10为电子设备的中框结构，完整的电子设备还设有前壳90和后壳91，前壳90和后壳91分别安装于壳体10的前侧和后侧，且前壳90和后壳91分别抵接于U型结构41的前后两侧，从而将卡座40完全安装定位。具体的，是前壳90和后壳91分别抵接于侧板412的前后两侧。
在具体的实施例中，柔性电路板60一端粘贴于卡座40上，开关器件50贴设于柔性电路板60的一端上，具体的是，柔性电路板60的一端设有补强板92，补强板92通过双面胶93贴设于底板411上，然后开关器件50贴设于柔性电路板60的一端上，结构简单，且装配工艺简单。
在具体的实施例中，请参阅图4，按键部件30包括键帽31和驱动杆32，键帽31和驱动杆32相互连接，具体为一体连接。驱动杆32轴向贯穿安装座20，键帽31设于安装座20外露于壳体10的一端上以供按压。
在具体的实施例中，请参阅图5，壳体10的外侧开设有收纳槽12，收纳槽12与安装孔11连通，收纳槽12围设于安装孔11外，收纳槽12的尺寸大于安装孔11的尺 寸。安装座20包括套体22及止挡部21，套体22呈圆筒状并轴向贯穿安装孔11，止挡部21与套体22连接，止挡部21止挡于安装孔11的一端并收容于收纳槽12中。键帽31套设于止挡部21上并至少部分收容于收纳槽12中，驱动杆32贯穿套体22设置，这里，由于键帽31活动，且为了使键帽31便于人手按压，键帽31一般会部分伸出收纳槽12外。
具体的，套体22和止挡部21为一体连接结构，即安装座20可以通过同一材料及同一工艺制作而成，其制作工艺简单。
在具体的实施例中，请参阅图5，驱动杆32与套体22之间抵持有第二密封件80，通过第二密封件80的设置，从而使得按键部件30和安装座20之间的密封性好，再加上第一密封件70的设置，使得整个按键结构100的密封性能好，实时上，其防水级别能够达到5ATM甚至更高，其中5ATM防水即是要求该按键结构100的防水要满足5ATM的大气压防水程度。
具体的，驱动杆32与套体22之间抵持有两个第二密封件80，两个第二密封件80沿套体22的轴向间隔设置，通过两个第二密封件80的设置，使得按键部件30与安装座20之间的密封性更好。可以理解地，在本申请的其他实施例中，第二密封件80的数量也可以是一个、三个或三个以上，此处不做唯一限定。
请参阅图5及图9，第二密封件80也为O型密封圈，套体22的外周壁上开设有第二密封槽321，第二密封件80容置于第二密封槽321中，且至少部分伸出第二密封槽321外以抵持于驱动杆32的内周壁上。
在具体的实施例中，请参阅图5至图9，键帽31为非回转体结构，且键帽31的外周壁与收纳槽12的内周壁相适配，键帽31的内周壁与止挡部21的外周壁相适配。这里的外周壁及内周壁均是指沿周向上的外侧壁及沿周向上的内侧壁，本申请通过将收纳槽12及止挡部21的限位，从而能够对键帽31的周向进行限位，能够阻止键帽31周向旋转。
在具体的实施例中，请参阅图5，键帽31与收纳槽12的底部抵持有至少一个弹性件94，止挡部21与至少一个弹性件94相对应的位置设有避让孔211，通过弹性件94抵持于键帽31与收纳槽12的底部之间，便于按压键帽31，从而带动驱动杆32驱动开关器件50或放开开关器件50。
具体的，键帽31呈跑道型，键帽31与收纳槽12的底部抵持有两个弹性件94，弹性件94为弹簧，两个弹簧分别抵持于键帽31沿长度方向上的两端与收纳槽12的底部之间。止挡部21也呈跑道型，止挡部21对应两个弹簧的位置均开设有避让孔211，两个弹簧分别贯穿两个避让孔211，并分别抵持于键帽31与收纳槽12的底部之间。
在具体的实施例中，请参阅图8及图9，键帽31上设有卡钩311，止挡部21上设有台阶212，卡钩311能够在旋转之后钩于台阶212上以限定键帽31的复位行程。此处需要说明的是，键帽31的复位行程是指键帽31被按压后在弹性件94的推动下反弹的行程，也即是当按压键帽31时，驱动杆32会驱动开关器件50，同时弹性件94也会压缩并积蓄弹性能量，当放开键帽31时，键帽31在弹性件94的弹性压力作用下反弹，此时，通过键帽31上的卡钩311钩于止挡部21的台阶212上，从而防止键帽31在弹性件94的弹性压力作用下反弹过大而掉出壳体10。
具体的，键帽31的长度方向上的两端边缘分别向壳体10方向延伸有卡钩311，止挡部21的外周壁上形成有两个台阶212，安装时，将键帽31与止挡部21沿周向错开一个角度，然后将键帽31相对止挡部21往回旋转，以使得两个卡钩311能够对应旋入两个台阶212的下方，这样，两个卡钩311能够在弹性件94的作用下止挡于两个台阶212的下方，从而对键帽31的反弹行程进行限位。
在本申请的另一个实施例中，请参阅图10至图14，键帽31与止挡部21均为回转体结构，则对应的，收纳槽12也呈圆形。同时为了对整个按键部件30的周向进行限位，则在卡座40上设有第二插块44，并在驱动杆32上设有第二插槽322，第二插块44插与第二插槽322中，从而形成对按键部件30的周向限位，防止按键部件30旋转。当然，在键帽31为非回转体结构的实施例中，也可以通过第二插块与第二插槽的方式对按键部件30进行限位，此处不做唯一限定。
此外，底板411上延伸有连接板45，连接板45向U型结构41中间延伸有间隔设置的多个第二插块44，驱动杆32的相对两侧分别设有多个第二插槽322，第二插块44与第二插槽322一一对应，第二插块44分别设于第二插槽322中，且第二插块44能够在第二插槽322中沿轴向滑动，也即是第二插块44在第二插槽322中有活动空间，而该活动空间刚好用于限定按键部件30的活动空间。
举例说明，连接板45上设有的多个第二插块44包括第二插块a和第二插块b，其中，第二插块a和第二插块b间隔设置，驱动杆32的外周壁上开设有相对设置的多个第二插槽322包括：第二插槽a和第二插槽b，第二插槽a和第二插槽b相对设置，其中，第二插槽a能够沿一方向直线插设于第二插槽a中，第二插槽b能够沿一方向直线插设于第二插槽b中。
同时，由于按键部件30的活动空间已经被限定，则无需在键帽31上设置卡钩311，也无需在安装座20上设置台阶212。
此外，由于键帽31呈回转体状，为了使得键帽31按压平稳，上述弹性件94抵持于键帽31的中心位置和止挡部21的中心位置。具体的，止挡部21的中心开设有中心孔213，驱动杆32穿过中心孔213设置，且止挡部21的中心开设有与中心孔213连通的环形槽214，弹性件94为柱形弹簧，柱形弹簧套设于驱动杆32上，柱形弹簧的一端抵持于键帽31的顶部内侧，柱形弹簧的另一端抵持于环形槽214的底部。
基于同样的构思，本申请实施例还提供了一种电子设备，包括壳体10和上述按键结构100，且电子设备中除了包括上述按键结构100以外，还包括主板及其他相关结构，主板及其他相关结构均设于壳体10中。
如上所述，将各个实施例中所涉及的按键结构100应用于手机、平板电脑、电视、颈戴蓝牙耳机、头戴耳机、真正无线立体声(True Wireless Stereo，TWS)耳机等电子设备中，从而使得该电子设备的按键部件30手感舒适，用户体验好。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。

Claims (16)

  1. 按键结构，其特征在于，包括：
    安装座，轴向贯穿位于壳体上的安装孔；
    按键部件，安装于所述安装座上，且所述按键部件的一端从所述安装座穿入所述壳体内部；
    卡座，与所述安装座连接；
    开关器件，安装于所述卡座上，且所述开关器件与所述按键部件伸入壳体内的一端正对设置，所述开关器件与主板连接；
    在所述按键部件受到朝向所述开关器件方向的压力时，所述按键部件能够与所述开关器件抵接而触发所述开关器件。
  2. 根据权利要求1所述的按键结构，其特征在于，所述安装座的外周壁与所述安装孔的侧壁相适配，所述卡座能够对所述安装座的轴向进行限位。
  3. 根据权利要求2所述的按键结构，其特征在于，所述安装座的外周壁与所述安装孔的侧壁之间抵持有第一密封件。
  4. 根据权利要求2所述的按键结构，其特征在于，所述卡座上设有第一插块，所述安装座的外周壁上开设有第一插槽，所述第一插块插设于所述第一插槽中以对所述安装座的轴向进行限位。
  5. 根据权利要求4所述的按键结构，其特征在于，所述卡座上设有相对设置的多个第一插块，所述安装座的外周壁上开设有相对设置的多个第一插槽，所述第一插槽与所述第一插块一一对应，所述第一插块能够沿一方向分别直线插设于所述第一插槽中。
  6. 根据权利要求4所述的按键结构，其特征在于，所述卡座上还设有抵接板，所述抵接板在所述第一插块插入所述第一插槽中时能够抵接于所述壳体内侧。
  7. 根据权利要求6所述的按键结构，其特征在于，所述卡座包括U型结构，所述开关器件位于所述U型结构中，多个所述第一插块分别设于所述U型结构的两侧，多个所述抵接板分别设于所述U型结构的两侧。
  8. 根据权利要求7所述的按键结构，其特征在于，所述按键部件包括相互连接的键帽和驱动杆，所述驱动杆轴向贯穿所述安装座，所述键帽套设于所述安装座外露于所述壳体的一端以供按压。
  9. 根据权利要求8所述的按键结构，其特征在于，所述壳体的外侧开设有与所述安装孔连通的收纳槽；所述安装座包括轴向贯穿所述安装孔的套体，以及与所述套体连接并止挡收容于所述收纳槽中的止挡部，所述键帽套设于所述止挡部上并至少部分收容于所述收纳槽中；所述驱动杆贯穿所述套体设置。
  10. 根据权利要求9所述的按键结构，其特征在于，所述驱动杆与所述套体之间抵持有第二密封件。
  11. 根据权利要求9所述的按键结构，其特征在于，所述键帽为非回转体结构，所述键帽的外周壁与所述收纳槽的内周壁相适配，所述键帽的内周壁与所述止挡部的外周壁相适配。
  12. 根据权利要求11所述的按键结构，其特征在于，所述键帽与所述收纳槽的底部抵持有至少一个弹性件，所述止挡部与所述至少一个弹性件相对应的位置设有避让孔。
  13. 根据权利要求11所述的按键结构，其特征在于，所述键帽上设有卡钩，所述止挡部上设有台阶，所述卡钩能够在旋转之后钩于所述台阶上以限定所述键帽的复位行程。
  14. 根据权利要求9所述的按键结构，其特征在于，所述键帽与所述止挡部均为回转体结构，所述卡座上设有第二插块，所述驱动杆上设有第二插槽，所述第二插块插于所述第二插槽中并能够在所述第二插槽中沿轴向滑动。
  15. 根据权利要求14所述的按键结构，其特征在于，所述U型结构上延伸有连接板，所述连接板向所述U型结构的中间延伸有间隔设置的多个第二插块，所述驱动杆的相对两侧设有多个第二插槽，所述第二插块与所述第二插槽一一对应，所述第二插块分别插设于所述第二插槽中。
  16. 电子设备，其特征在于，包括开设有安装孔的壳体，以及根据权利要求1至15任一项所述的按键结构。
PCT/CN2021/104069 2020-07-03 2021-07-01 按键结构及电子设备 WO2022002212A1 (zh)

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