WO2023010938A1 - 键盘以及电子设备 - Google Patents

键盘以及电子设备 Download PDF

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Publication number
WO2023010938A1
WO2023010938A1 PCT/CN2022/092254 CN2022092254W WO2023010938A1 WO 2023010938 A1 WO2023010938 A1 WO 2023010938A1 CN 2022092254 W CN2022092254 W CN 2022092254W WO 2023010938 A1 WO2023010938 A1 WO 2023010938A1
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WO
WIPO (PCT)
Prior art keywords
scissors
flexible
substrate
hole
keycap
Prior art date
Application number
PCT/CN2022/092254
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English (en)
French (fr)
Inventor
周希
Original Assignee
荣耀终端有限公司
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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
Publication of WO2023010938A1 publication Critical patent/WO2023010938A1/zh

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    • 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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
    • H01H13/7073—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards characterised by springs, e.g. Euler springs

Definitions

  • the embodiment of the present application relates to the technical field of terminals, and in particular to a keyboard and an electronic device.
  • a keyboard is a common electronic product, which is used in conjunction with terminal equipment such as electronic instruments and notebook computers (Laptop) to realize input. Divided according to the input mode, the keyboard may include touch-type keyboards and touch-type keyboards.
  • Some existing push-button keyboards include a base plate and a plurality of keys, each key includes a keycap and a scissor foot, one end of the scissor foot is rotatably connected to the base plate, and the other end of the scissor foot is rotatably connected to the keycap, and the keycap is connected to the keycap through the scissor foot. substrate connected.
  • the user presses down on the keycap to input characters and control commands.
  • Embodiments of the present application provide a keyboard and an electronic device, which can solve the problem in the prior art that a large noise occurs due to the collision between the scissors feet and the substrate during the use of the keyboard.
  • the first aspect of the embodiments of the present application provides a keyboard, including: a substrate and a plurality of keys, each of which includes a keycap and a scissor foot, one end of the scissor foot is rotatably connected to the substrate, and the scissor foot The other end of the keycap is rotatably connected to the keycap, and the keycap is telescopically arranged on the base plate; at least one set of flexible resistance members are provided on the base plate, and the flexible resistance members are located between the scissors feet and the base plate. Between the substrates, the flexible resisting member is used to contact the scissor feet when the keycap moves down to the lowest position, so as to prevent the scissor feet from colliding with the substrate.
  • the flexible resisting member can collide with the scissor feet when the keycap moves down to the lowest position, so that the scissor feet do not directly collide with the substrate, and the flexible resisting member can
  • the cushioning function is beneficial to reduce the collision noise between the scissors feet and the base plate, thereby helping to solve the problem that the collision noise between the scissors feet and the base plate causes a large noise during the use of the keyboard.
  • the scissors feet include an outer scissors foot and an inner scissors foot in a frame structure, the first end of the inner scissors foot is opposite to the first end of the outer scissors foot
  • the substrates are rotatably connected;
  • the second end of the inner scissor foot is opposite to the second end of the outer scissor foot and both are rotatably connected to the keycap;
  • the third end and the fourth end of the inner scissors are connected to the third end and the fourth end of the outer scissors respectively, and the third end and the fourth end of the inner scissors are opposite and located in the Between the first end and the second end of the inner scissor foot, the third end and the fourth end of the outer scissor foot are opposite and located between the first end and the second end of the outer scissor foot;
  • At least one set of the flexible counter elements is located directly below the third end and/or the fourth end of at least one of the outer scissor foot and the inner scissor foot.
  • each set of flexible resistance members includes a first flexible section and a second flexible section
  • the first flexible section is positioned between at least one of the third end and the fourth end of the inner scissor foot and the base plate;
  • the second flexible segment is positioned between at least one of the third and fourth ends of the outer scissor legs and the base plate;
  • the first flexible section is in contact with the inner scissors, and the second flexible section is in contact with the outer scissors.
  • first flexible section and the second flexible section are sequentially arranged along the extension direction of the first end of the outer scissors foot.
  • first flexible section and the second flexible section are located directly below the third ends or directly below the fourth ends of the inner scissors feet and the outer scissors feet.
  • the flexible resisting member is close to the first end of the outer scissors, and when the keycap moves down to the lowest position, the second end of the inner scissors is close to the Flexible friction piece.
  • the two groups of flexible resisting members are arranged symmetrically along a line connecting the centers of the first ends of the outer scissors legs and the inner scissors legs.
  • the keyboard further includes an elastic member, one end of the elastic member is connected to the substrate, the other end of the elastic member is in contact with the keycap, and the keycap passes through the
  • the elastic member is telescopically arranged on the base plate.
  • the flexible resistance member and the elastic member are an integral structure made of the same material.
  • the keyboard further includes a bottom plate arranged below the base plate, the bottom plate is connected to the base plate, a first avoidance through hole is provided on the base plate, and a There is a first escape hole, and the first avoidance through hole is directly opposite to the first avoidance opening; the third end of the outer scissor foot protrudes downward toward the side of the base plate and is provided with a first protrusion part, when the keycap moves down to the lowest position, the first protruding part protrudes into the first avoidance through hole and the first escape opening.
  • the base plate is provided with a second avoidance hole
  • the bottom plate is provided with a second avoidance opening
  • the second avoidance through hole is directly opposite to the second avoidance opening
  • the fourth end of the outer scissor foot protrudes downwards toward the side of the substrate and is provided with a second protrusion, and when the keycap moves down to the lowest position, the second protrusion extends into to the second avoidance through hole and the second escape opening.
  • the first end of the outer scissors is provided with a first rotating shaft
  • the second end of the outer scissors is provided with a first sliding shaft
  • the first end of the inner scissors is provided with There is a second sliding shaft
  • the second end of the inner scissors foot is provided with a second rotating shaft
  • the side of the keycap facing the base plate is provided with a hinge hole and a first slide groove, the second rotating shaft is rotatably installed in the hinge hole, and the first sliding shaft is slidably arranged on the first inside the chute;
  • the base plate is provided with a rotating shaft groove and a second slide groove, the first rotating shaft is matched with the rotating shaft groove and can rotate relative to the base plate, and the second sliding shaft is slidably arranged on the second slide in the slot.
  • the substrate is provided with a first through hole and a second through hole
  • the bottom plate is provided with a first opening and a second opening
  • the first opening and the The first through hole is directly opposite
  • the second opening is directly opposite to the second through hole
  • the hole wall of the first opening is provided with a first hook
  • the first hook is controlled by the first The through hole protrudes
  • the hole wall of the second opening is provided with a second hook
  • the second hook protrudes from the second through hole
  • the first hook and the second hook The bending directions are the same, and the first hook and the second hook jointly form the shaft groove.
  • a second aspect of the embodiments of the present application provides an electronic device, including: any one of the keyboards provided in the first aspect of the embodiments of the present application.
  • An electronic device provided in an embodiment of the present application includes a keyboard.
  • the keyboard includes a substrate and a plurality of keys, each key includes a keycap and a scissor foot, the keycap is telescopically arranged on the substrate, and the keycap is connected to the substrate through the scissor foot, and at least one set of flexible resisting parts is provided on the substrate,
  • the flexible conflicting part is located between the scissors feet and the substrate, and the flexible conflicting part can collide with the scissors feet when the keycap moves down to the lowest position, so as to prevent the scissors feet from colliding with the substrate, and the flexible conflicting part acts as a buffer to facilitate the reduction of the scissors
  • the collision noise between the feet and the base plate is beneficial to solve the problem that the collision noise between the scissors feet and the base plate causes a large noise during the use of the keyboard.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of another electronic device provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of another electronic device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an application scenario of another electronic device provided by an embodiment of the present application.
  • Fig. 5 is an exploded schematic diagram of a keyboard provided by an embodiment of the present application.
  • FIG. 6 is a partial cross-sectional schematic diagram of a key in a keyboard provided by an embodiment of the present application.
  • Fig. 7 is a schematic diagram of the structure of the cooperation between a flexible resistance member and a substrate provided by an embodiment of the present application;
  • Fig. 8 is a schematic structural diagram of the connection between the keycap and the scissor foot provided by an embodiment of the present application.
  • Fig. 9 is an exploded schematic view of the connection between the keycap and the scissors foot provided by an embodiment of the present application.
  • Fig. 10a is a schematic structural diagram of the first layout of the flexible resistance element on the substrate provided by an embodiment of the present application;
  • Fig. 10b is a schematic structural diagram of the second layout of the flexible resistance element on the substrate provided by an embodiment of the present application.
  • Fig. 10c is a schematic structural diagram of a third layout of the flexible resistance element on the substrate provided by an embodiment of the present application.
  • Fig. 10d is a schematic structural diagram of a fourth layout of the flexible resistance element on the substrate provided by an embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a key in another keyboard provided by an embodiment of the present application without a keycap;
  • FIG. 12 is a schematic structural diagram of the connection between the elastic member and the substrate provided by an embodiment of the present application.
  • Fig. 13 is an exploded schematic diagram of a substrate and a bottom plate provided by an embodiment of the present application.
  • Fig. 14 is a schematic structural diagram of a keycap provided by an embodiment of the present application.
  • Fig. 15 is a schematic structural diagram of an outer scissor foot provided by an embodiment of the present application.
  • a keyboard is provided in the related art, which includes a substrate and a plurality of keys, each key includes a keycap and a scissor foot, the keycap is connected to the substrate through the scissor foot, and the scissor foot is made of a hard material to support the substrate role.
  • the substrate is a metal substrate made of metal material, and circuits are formed on the substrate.
  • the inventor tried to set up a flexible resistance member on the surface of the scissor feet facing the substrate.
  • the flexible resistance member on the scissor foot will collide with the substrate, and a flexible impact will occur between the flexible resistance member and the substrate.
  • the inventors have found that with such an arrangement, the vertical size of the scissor legs increases, and the thickness of the keys increases, which is not conducive to the realization of thinner and lighter keyboards.
  • the inventors tried to arrange the flexible resistance on the substrate, and the flexible resistance is located between the scissors feet and the substrate, so as to When the keycap moves downwards to the lowest position, the scissors legs touch the flexible resisting part on the base plate, thereby helping to prevent the scissors legs from directly rigidly colliding with the base plate, thereby helping to avoid collision noise during the use of the keyboard. As a result, a low-noise, thinner and lighter keyboard is obtained.
  • An embodiment of the present application provides an electronic device, which can be a desktop computer, a notebook computer (laptop), a tablet computer (Table), an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook , POS machine, personal digital assistant (personal digital assistant, PDA) and other mobile terminals, fixed terminals or foldable devices.
  • a desktop computer a notebook computer (laptop), a tablet computer (Table), an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook , POS machine, personal digital assistant (personal digital assistant, PDA) and other mobile terminals, fixed terminals or foldable devices.
  • UMPC ultra-mobile personal computer
  • PDA personal digital assistant
  • FIG. 1 schematically shows a three-dimensional structure of an electronic device 100 according to an embodiment.
  • the electronic device 100 may be a notebook computer.
  • the notebook computer may include a display screen 10 and a host 20 .
  • the display screen 10 and the host 20 can be rotatably connected.
  • the display screen 10 and the host 20 may be connected through a rotating shaft; or, the display screen 10 and the host 20 may be rotatably connected through a hinge structure.
  • the display screen 10 and the host 20 can be mutually independent devices, for example, the display screen 10 and the host 20 are detachable, and during use, the display screen 10 is placed on the host 20, and the use ends Afterwards, the display screen 10 and the host 20 can be separated from each other.
  • the electrical connection between the display screen 10 and the host 20 for example, the electrical connection between the display screen 10 and the host 20 can be realized through contacts, or the display screen 10 and the host 20 can be electrically connected.
  • the hosts 20 are electrically connected through a flexible printed circuit (FPC), or the display screen 10 and the host 20 are electrically connected through wires.
  • the display screen 10 and the host 20 can also be connected wirelessly through wireless signals.
  • FIG. 2 schematically shows a three-dimensional structure of an electronic device 100 in another embodiment.
  • the electronic device 100 may be a desktop computer.
  • a desktop computer may include a display screen 10 and a host 20 .
  • the display screen 10 and the host 20 are set independently.
  • the display screen 10 is electrically connected to the host 20 through a data line to realize the display effect of the display screen 10 .
  • FIG. 3 schematically shows a three-dimensional structure of an electronic device 100 according to yet another embodiment.
  • the electronic device 100 may be a tablet computer 30 .
  • the tablet computer 30 also includes a display screen 10 and a host 20, and the display screen 10 and the host 20 are not independent but integrated.
  • the electronic device 100 can include a keyboard 40, and the keyboard 40 can provide input to the electronic device 100, and the electronic device 100 is based on the keyboard 40. An input to perform an action in response to that input.
  • the keyboard 40 can be set on the host 20 .
  • the keyboard 40 is electrically connected to the control unit inside the host 20, and the keyboard 40 is used as an input device of the notebook computer.
  • the user can press the keys on the keyboard 40 to input characters or operation instructions.
  • the keyboard 40 and the host 20 are set independently.
  • the keyboard 40 is electrically connected to the host computer 20 through a data line, so the keyboard 40 can be used as an input device of a desktop computer.
  • the keyboard 40 and the host 20 may also be wirelessly connected through a wireless signal (such as a Bluetooth signal).
  • the tablet computer 30 and the keyboard 40 can be independent devices.
  • the tablet computer 30 and the keyboard 40 can be detachable.
  • the tablet computer 30 is placed on the keyboard 40. After use, the tablet computer 30 and the keyboard 40 can be separated from each other.
  • the electrical connection between the tablet computer 30 and the keyboard 40 can be realized through contacts.
  • the tablet computer 30 and the keyboard 40 are electrically connected through wires.
  • the tablet computer 30 and the keyboard 40 may also be wirelessly connected through a wireless signal (such as a Bluetooth signal).
  • the keyboard 40 may be, for example, the wireless keyboard shown in FIG. 3 .
  • Fig. 4 schematically shows an application scenario of the electronic device 100 according to yet another embodiment.
  • both the tablet computer 30 and the keyboard 40 can be placed and used at a predetermined distance from each other, and a wireless signal (such as a Bluetooth signal) can be used to connect the tablet computer 30 and the keyboard 40, so that the user can use it according to his personal use. Get used to, adjust the placement position of the keyboard 40 arbitrarily.
  • the keyboard 40 may be, for example, the wireless keyboard shown in FIG. 3 or FIG. 4 .
  • the tablet computer 30 and the keyboard 40 may be interconnected through a communication network to realize wireless signal interaction.
  • the communication network can be but not limited to: WI-FI hotspot network, WI-FI point-to-point (peer-to-peer, P2P) network, Bluetooth network, zigbee network or near field communication (near field communication, NFC) network and other short-distance Communications network.
  • FIG. 5 schematically shows an exploded structure of a keyboard 40 .
  • the keyboard 40 provided by the embodiment of the present application includes a base plate 41 and a plurality of keys 42 .
  • each key 42 may include a keycap 420 and a scissor foot 421 disposed below the keycap 420 , the keycap 420 is connected to the substrate 41 through the scissor foot 421 , and the keycap 420 can move up and down relative to the substrate 41 .
  • a circuit is also formed on the substrate 41 , and when the keycap 420 is pressed and moves downward from the initial position to the lowest position, the circuit on the substrate 41 can be turned on to realize input.
  • the substrate 41 may be a printed circuit board made of metal such as aluminum or copper, or a metal plate with a printed circuit film on its surface.
  • the scissor feet 421 are made of hard materials such as metal or plastic.
  • the hard scissor feet 421 have high structural strength and are used to provide good support for the keycap 420, so that the keycap 420 is evenly stressed, and the keycap 420 When it is at any height, it can be pressed down with a fixed force by the user. When the user presses the keycap 420 to move down, the scissors 421 will rotate toward the substrate 41;
  • FIG. 6 schematically shows a partial cross-sectional structure of a key 42 in a keyboard 40 .
  • at least one set of flexible resisting members 410 are disposed on the base plate 41 , and the flexible resisting members 410 are located between the scissor feet 421 and the base plate 41 .
  • the scissors feet 421 contact the flexible resisting member 410 to prevent the scissors feet 421 from colliding with the substrate 41 .
  • the scissor feet 421 will not directly collide with the substrate 41, but will collide with the flexible resisting member 410.
  • the flexible resisting member 410 Since the flexible resisting member 410 has good elasticity, the flexible resisting member 410 can act as a buffer to slow down the collision between the scissors 421 and the base plate 41, which is beneficial to solve the collision noise between the scissors 421 and the base 41 when the key 42 is pressed, resulting in a large noise during the use of the keyboard 40 The problem.
  • the shape of the flexible resistance member 410 is non-restrictive, as long as the flexible resistance member 410 can replace the base plate 41 and scissors foot 421, for example, the flexible resistance member 410 can be a block structure, or a rod structure or a plate structure .
  • the flexible resisting member 410 protrudes from the front of the substrate 41 facing the keycap 420.
  • the flexible resisting member 410 can be bonded on the front of the substrate 41 facing the keycap 420, or the flexible resisting member 410 can be clamped on on the substrate 41.
  • Fig. 7 schematically shows a matching structure of a flexible resisting member 410 and a substrate 41.
  • the flexible resisting member 410 is a thin rod in the shape of a cuboid, and the front of the substrate 41 protrudes and is provided with a first restraint set opposite to it.
  • the ring 411 and the second confinement ring 412, the first confinement ring 411 and the base plate 41 jointly enclose the first clamping space for clamping the flexible resisting member 410
  • the second confinement ring 412 and the base plate 41 jointly enclose the first clamping space for clamping
  • the second clamping space of the flexible resisting member 410 enables the flexible resisting member 410 to be fastened in the first clamping space and the second clamping space.
  • a slot (not shown) is provided on the substrate 41, and the flexible resisting member 410 is fixed in the slot, and the thickness of the flexible resisting member 410 is greater than the depth of the engaging slot, so that the flexible resisting member 410 A portion can protrude from the front surface of the substrate 41 .
  • the material of the flexible resisting member 410 can be selected from rubber, such as silica gel or latex, or the material of the flexible resisting member 410 can also be selected from elastic plastics, such as soft rubber. The cost of rubber and plastic is low and both have high flexibility.
  • the keyboard 40 provided in this embodiment provides a flexible resistance member 410 on the substrate 41, and the flexible resistance member 410 can interfere with the scissors feet 421 when the keycap 420 moves down to the lowest position, so that the scissors feet 421 and the substrate 41 No direct collision, and the impact effect between the scissors feet 421 and the base plate 41 can be alleviated by the flexible resistance member 410, so as to reduce the collision noise between the scissors feet 421 and the base plate 41, thereby helping to avoid the keyboard 40 from appearing during use. murmur.
  • the entire area of the substrate 41 corresponding to the scissors feet 421 may be provided with a flexible resisting member 410 , so as to ensure that the scissors feet 421 will not directly collide with the substrate 41 .
  • the flexible resisting member 410 may only be disposed between part of the scissor feet 421 and the substrate 41.
  • the size and installation position of the flexible resistance member 410 should be reasonably set so that when the keycap 420 is pressed down to the lowest position, the scissor feet 421 will The portion corresponding to the flexible resisting member 410 can contact the flexible resisting member 410 before other parts of the scissors feet 421 contact the front surface of the substrate 41 , thereby ensuring that the scissors feet 421 will not directly collide with the substrate 41 .
  • FIG. 8 schematically shows the three-dimensional structure of the connection of the keycap 420 and the scissor foot 421
  • FIG. 9 schematically shows the exploded structure of the keycap 420 and the scissor foot 421
  • the scissor foot 421 includes the outer scissor foot 4210 and the inner scissor foot 4211, both of the outer scissor foot 4210 and the inner scissor foot 4211 are frame structures, and the internal rotation of the inner scissor foot 4211 and the outer scissor foot 4210 connected.
  • the outer scissor foot 4210 includes opposite first ends 4210a and second ends 4210b, and opposite third ends 4210c and fourth ends 4210d, the third end 4210c and the fourth end 4210d of the outer scissor feet 4210 are located Between the first end 4210a and the second end 4210b of the scissors foot 4210. Wherein, the first end 4210 a of the outer scissor foot 4210 is rotatably connected to the base plate 41 , and the second end 4210 b of the outer scissor foot 4210 is rotatably connected to the keycap 420 .
  • the inner scissor foot 4211 also includes opposite first end 4211a and second end 4211b, and opposite third end 4211c and fourth end 4211d, and the third end 4211c and fourth end 4211d of the inner scissor foot 4211 are located inside Between the first end 4211a and the second end 4211b of the scissors foot 4211.
  • the first end 4211a of the inner scissors 4211 is rotatably connected to the base plate 41
  • the second end 4211b of the inner scissors 4211 is rotatably connected to the keycap 420 .
  • the inner scissors 4211 and the outer scissors 4210 are cross-connected to each other, specifically, the third end 4211c of the inner scissors 4211 is cross-connected to the third end 4210c of the outer scissors 4210, and the fourth end 4211d of the inner scissors 4211 is connected to The fourth ends 4210d of the outer scissor legs 4210 are cross-connected.
  • the keycap 420 is in any position between the initial position and the lowest position, the first end 4211a of the inner scissors 4211 is opposite to the first end 4210a of the outer scissors 4210, and the second end 4211b of the inner scissors 4211 is opposite to the first end 4211a of the outer scissors 4211.
  • the second ends 4210b of the outer scissor legs 4210 are opposite to each other.
  • each group of flexible resisting members 410 can be configured to be connected to a part of any end of the outer scissors leg 4210 and to any end of the inner scissors leg 4211. Corresponds to at least one of the parts of .
  • each set of flexible resistances Each member 410 may include a first flexible section 4100 and a second flexible section 4101 (see FIG. 10a below).
  • first flexible section 4100 and the second flexible section 4101 may be the same or different.
  • first flexible section 4100 and the second flexible section 4101 can be arranged flexibly, so that the flexible resisting member 410 can adapt to the scissors feet 421 .
  • a set of flexible resisting members 410 may only be disposed between the outer scissor feet 4210 and the base plate 41 or between the inner scissor feet 4211 and the base plate 41 .
  • the keycap 420 is pressed to the lowest position, the inner scissors 4211 is against the flexible resisting part 410, and the flexible resisting part 410 can If the inner scissors 4211 is prevented from continuing to move toward the base plate 41, the outer scissors 4210 connected to the inner scissors 4211 cannot continue to move toward the base 41, so that the keycap 420 cannot continue to move downwards, so as not to The scissors feet 421 collide with the substrate 41 .
  • the specific layout of a group of flexible resisting elements 410 can be as follows:
  • first flexible section 4100 and the second flexible section 4101 may be located directly below the same end of the inner scissor foot 4211 or the outer scissor foot 4210 .
  • Figure 10a schematically shows the three-dimensional structure of the first layout of the flexible resisting member 410 on the substrate 41, as shown in Figure 10a, the first flexible section 4100 and the second flexible section 4101 are both arranged Directly below the two ends 4211b, or, both the first flexible section 4100 and the second flexible section 4101 are disposed directly below the third end 4211c of the inner scissors foot 4211 . It should be noted that those skilled in the art can obviously understand other arrangements of the first flexible section 4100 and the second flexible section 4101 after reading the above technical solution, and this embodiment will not list them one by one here.
  • FIG. 10b schematically shows the three-dimensional structure of the second layout of the flexible resisting member 410 on the substrate 41. As shown in FIG. Between, the second flexible section 4101 is disposed between the fourth end 4211d of the inner scissors foot 4211 and the base plate 41 .
  • first flexible section 4100 and the second flexible section 4101 are sequentially arranged along the extending direction of the first end 4210 a of the outer scissors foot 4210 .
  • the extension direction of the first end 4210a of the outer scissors 4210 is parallel to the rotation axis of the first end 4210a of the outer scissors 4210 and the base plate 41, then the first flexible section 4100 and the second flexible section 4101 are equivalent to The first end 4210a of 4210 is spaced apart from the rotation axis of the base plate 41 .
  • the outer scissors 4210 or the inner scissors 4211 can be in contact with the first flexible section 4100 and the second flexible section 4101 at the same time, so as to ensure the flexibility of the first flexible section 4100 and the second flexible section 4100.
  • Section 4101 can all play the role of buffering.
  • a set of flexible resisting members 410 may be located directly below the outer scissor feet 4210 and the inner scissor feet 4211 at the same time.
  • the outer scissors 4210 and the inner scissors 4211 collide with the flexible contact member 410 at the same time, so that neither the outer scissors 4210 nor the inner scissors 4211 can collide with the substrate 41 .
  • the flexible resisting member 410 is only located directly below the inner scissors 4211, in order to prevent the outer scissors 4210 from touching the substrate 41 when the keycap 420 abuts against the flexible resisting member 410, the outer scissors 4210 structure has certain limitations.
  • the structures of the outer scissors 4210 and the inner scissors 4211 can have a more flexible structure.
  • the specific arrangement of a group of flexible resisting elements 410 may be as follows:
  • first flexible segment 4100 and the second flexible segment 4101 may be located directly below the same end of the inner scissor foot 4211 and the outer scissor foot 4210 .
  • the first flexible section 4100 is disposed between the second end 4211b of the inner scissor foot 4211 and the substrate 41, and the second flexible section 4101 is disposed between the second end 4210b of the outer scissor foot 4210 and the substrate 41; or, as shown in FIG. 10c , the first flexible section 4100 is arranged between the fourth end 4211d of the inner scissor foot 4211 and the substrate 41, and the second flexible section 4101 is arranged between the fourth end 4210d of the outer scissor foot 4210 and the substrate 41, wherein Fig.
  • first flexible section 4100 and the second flexible section 4101 can be arranged at intervals along the extension direction of the first end 4210a of the outer scissors foot 4210, or the first flexible section 4100 and the second flexible section 4101 can also be arranged in a staggered manner.
  • first flexible section 4100 and the second flexible section 4101 may be located directly below different ends of the inner scissors foot 4211 and the outer scissors foot 4210 .
  • the first flexible section 4100 is disposed between the second end 4211b of the inner scissor foot 4211 and the substrate 41, and the second flexible section 4101 is disposed between the third end 4210c of the outer scissor foot 4210 and the substrate 41; or, as shown in FIG. 10d , the first flexible section 4100 is arranged between the second end 4211b of the inner scissor foot 4211 and the substrate 41, and the second flexible section 4101 is arranged between the fourth end 4210d of the outer scissor foot 4210 and the substrate 41, wherein Fig.
  • FIG. 10d schematically The three-dimensional structure of the fourth layout mode of the flexible resisting member 410 on the substrate 41 is clearly shown.
  • the inner scissor foot 4211 and/or the outer scissor foot 4210 in Fig. 10a, Fig. 10b, Fig. 10c and Fig. express.
  • first flexible section 4100 and the second flexible section 4101 are located directly below the same end, for example, both the first flexible section 4100 and the second flexible section 4101 are located directly below the third end 4211c of the inner scissor foot 4211, or, The first flexible section 4100 and the second flexible section 4101 are located directly below the fourth end 4211d of the inner scissor foot 4211 and the fourth end 4210d of the outer scissor foot 4210 respectively.
  • the first flexible section 4100 and the second flexible section 4101 Can be formed in one piece. Therefore, the flexible resisting member 410 is integrated, and when the flexible resisting member 410 is installed, it is not necessary to install the first flexible segment 4100 and the second flexible segment 4101 on the substrate 41 , which improves the installation efficiency.
  • the arrangement position of each set of flexible resisting elements 410 may adopt the same layout in the above-mentioned layouts, or may adopt different layouts, which is not limited in this embodiment.
  • a preferred implementation of the above-described layout of the flexible resistance members 410 is: at least one set of flexible resistance members 410 is located at the third end and/or the third end of at least one of the outer scissors feet 4210 and the inner scissors feet 4211. directly below the four ends.
  • the flexible resisting member 410 may be located directly below the third end 4211c or the fourth end 4211d of the inner scissors foot 4211, and directly below the third end 4210c or the fourth end 4210d of the outer scissors foot 4210 , directly below the third end 4211c of the inner scissors 4211 and the third end 4210c of the outer scissors 4210, directly below the third end 4211c of the inner scissors 4211 and the fourth end 4210d of the outer scissors 4210, the inner scissors Directly below the fourth end 4211d of 4211 and the fourth end 4210d of the outer scissors 4210, or directly below the fourth end 4211d of the inner scissors 4211 and the third end 4210c of the outer scissors 4210.
  • both the outer scissors 4210 and the inner scissors 4211 can keep intersecting, so there is always a certain distance between the second end 4210b of the outer scissors 4210 and the second end 4211b of the inner scissors 4211 and the substrate 41 , and the distance between the third end 4210c, 4211c and the fourth end 4210d, 4211d of the inner scissor foot 4211 and the outer scissor foot 4210 and the substrate 41 is smaller than the second end 4210b, 4211b of the inner scissor foot 4211 and the outer scissor foot 4211b and the substrate 41 the distance between.
  • the third end 4210c, 4211c and the fourth end 4210d, 4211d of the inner scissor foot 4211 and the outer scissor foot 4210 may collide with the substrate 41. Sex is higher.
  • the flexible resisting member 410 is set to correspond to the third end 4210c, 4211c and/or the fourth end 4210d, 4211d, so that the flexible resisting member 410 can more effectively prevent the scissors feet 421 from contacting the substrate 41. The role of collision.
  • the flexible resisting member 410 When the flexible resisting member 410 is arranged directly below the third end and/or the fourth end of the inner scissors 4211 and the outer scissors 4210, the flexible resisting member 410 can simultaneously be used to buffer the inner scissors 4211 and the outer scissors 4210 from the substrate. 41 to be impacted to prevent the inner scissors 4211 and the outer scissors 4210 from colliding with the substrate 41 .
  • the first flexible section 4100 can be located between one of the third end 4211c and the fourth end 4211d of the inner scissor foot 4211 and the base plate 41
  • the second flexible section 4101 can be located between the outer scissors 4211. Between one of the third end 4210c and the fourth end 4210d of the foot 4210 and the substrate 41 .
  • FIG. 11 schematically shows a three-dimensional structure of a key 42 in another keyboard 40 without the keycap 420
  • FIG. 12 schematically shows a three-dimensional structure in which the elastic member 422 is connected to the substrate 41
  • the first flexible section 4100 is located between the third end 4211c of the inner scissors foot 4211 and the substrate 41
  • the second flexible section 4101 is located between the third end 4210c of the outer scissors foot 4210 and the substrate 41
  • the first flexible section 4100 and the second flexible section 4101 are arranged at intervals along the extending direction of the first end 4210 a of the outer scissors foot 4210
  • the first flexible section 4100 and the second flexible section 4101 may be formed in one piece. Therefore, the flexible resisting member 410 is integrated, which is convenient for installation.
  • the flexible resistance member 410 can be close to the first end 4210a of the outer scissor foot 4210, and when the keycap 420 moves down to the lowest position, the second end 4211b of the inner scissor foot 4211 is close to the flexible resistance member 410 .
  • the button 42 can be compressed to a lower position, that is, the button 42 has Larger travel range.
  • FIG. 11 there may be multiple sets of flexible resisting elements 410 .
  • two groups of flexible resistance members 410 can be provided, and the two groups of flexible resistance members 410 can be arranged symmetrically along a central line P, which refers to the first end of the outer scissors feet 4210.
  • the central line P is parallel to the front surface of the base plate 41 and is perpendicular to the rotation axis of the base plate 41 with the first end 4210 a of the outer scissors feet 4210 .
  • the thickness of the flexible resisting member 410 needs to be reasonably designed so that the flexible resisting member 410 can reduce the impact force between the scissors feet 421 and the substrate 41 .
  • the thickness of the flexible resisting member 410 may be greater than or equal to 0.1 mm and less than 0.5 mm.
  • the button 42 can also include an elastic member 422, one end of the elastic member 422 is connected to the substrate 41, the other end of the elastic member 422 is in contact with the keycap 420, and the elastic The member 422 is used to provide resilience for the keycap 420 , so that the keycap 420 can be telescopically disposed on the substrate 41 .
  • the elastic member 422 is accommodated in the middle of the frame-like inner scissors feet 4211 .
  • the keycap 420 compresses the elastic member 422 .
  • the elastic member 422 releases elastic potential energy to rebound and drive the keycap 420 to move upward.
  • the flexible resisting member 410 can be connected with the elastic member 422, thereby helping to improve the installation reliability of the flexible resisting member 410.
  • the elastic member 422 is in the shape of a truncated cone, and the bottom end of the elastic member 422 is a large diameter end, and the top end of the elastic member 422 is a small diameter end.
  • the flexible resisting member 410 and the elastic member 422 can be formed into an integrated structure through an integral molding process.
  • the materials of the flexible resisting member 410 and the elastic member 422 formed as one piece are the same, for example, when the materials of the flexible resisting member 410 and the elastic member 422 are both elastic plastics, the flexible resisting member 410 and the elastic member 422 It can be processed as one piece by injection molding process. It is also worth pointing out that when there are two groups of flexible resistance members 410, the two groups of flexible resistance members 410 are arranged symmetrically along the central line P, and the flexible resistance members 410 and the elastic member 422 are of an integrated structure, during manufacturing, The processing mold is also a symmetrically arranged structure to facilitate mold opening.
  • FIG. 13 schematically shows the exploded structure of the keyboard 40
  • FIG. 14 schematically shows the three-dimensional structure of the keycap 420
  • the specific realization method of the rotational connection between the inner scissors 4211 and the base plate 41 and the keycap 420 is: the first end 4210a of the outer scissors 4210 is provided with a first rotating shaft 4213, the base plate 41 is provided with a shaft groove (not shown), the first shaft 4213 matches with the shaft groove, so that the first end 4210a of the outer scissor foot 4210 can be connected to the base plate 41 in rotation; the inner scissor foot 4211
  • the second end 4211b of the keycap 420 is provided with a second rotating shaft 4214, and the surface of the keycap 420 facing the substrate 41 is provided with hinge holes 4200b, 4201b.
  • the two ends 4211b can be rotatably connected with the keycap 420 .
  • the second end 4210b of the outer scissor foot 4210 is provided with a first sliding shaft 4215
  • the surface of the keycap 420 facing the substrate 41 is provided with a first slide groove 4202
  • the first slide groove 4202 is along the first end of the outer scissor foot 4210.
  • the first sliding groove 4202 has an opening facing away from the second end 4211b of the inner scissors foot 4211
  • the first sliding shaft 4215 can be connected with the first sliding shaft 4215.
  • the slot 4202 is slidingly fitted so that the first sliding shaft 4215 can slide in the first sliding slot 4202; the first end 4211a of the inner scissor foot 4211 is provided with a second sliding shaft 4216, and the base plate 41 is provided with a second sliding slot, the second The second chute extends along the central line P between the first end 4210a of the outer scissors foot 4210 and the first end 4211a of the inner scissors foot 4211, and the second chute has a passage facing away from the first end 4211a of the outer scissors foot 4210.
  • the second sliding shaft 4216 can be slidably matched with the second sliding slot, so that the second sliding shaft 4216 can slide in the second sliding slot.
  • a first fixing block 4200 and a second fixing block 4201 protrude from the surface of the keycap 420 facing the substrate 41 , and the first fixing block 4200 and the second fixing block 4201 are arranged along the sides of the outer scissor feet 4210 .
  • the extension direction of the first end 4210a is oppositely arranged, and the first fixing block 4200 is provided with a first hinge hole 4200b, and the centerline of the first hinge hole 4200b is parallel to the extension direction of the first end 4210a of the outer scissor foot 4210, the first The end of the fixing block 4200 facing away from the keycap 420 is provided with a first notch 4200a communicating with the first hinge hole 4200b, the first notch 4200a can allow the second rotating shaft 4214 to pass through, so that the second rotating shaft 4214 can be installed from the first notch 4200a to the first notch 4200a.
  • the second fixed block 4201 is provided with a second hinged hole 4201b, the center line of the second hinged hole 4201b is parallel to the extending direction of the first end 4210a of the outer scissor foot 4210, and the second fixed block 4201 deviates from the key
  • One end of the cap 420 is provided with a second notch 4201a communicating with the second hinge hole 4201b, the second notch 4201a can allow the second rotating shaft 4214 to pass through, so that the second rotating shaft 4214 can also be installed from the second notch 4201a to the second hinge hole 4201b Inside.
  • the centerline of the first hinge hole 4200b and the centerline of the second hinge hole 4201b are arranged on the same line, and the first hinge hole 4200b and the second hinge hole 4201b are jointly formed as a hinge hole that can cooperate with the second rotating shaft 4214 .
  • the keyboard 40 further includes a base plate 43 disposed below the base plate 41 , and the base plate 43 is connected to the base plate 41 for supporting the base plate 41 .
  • the bottom plate 43 is provided with a first opening 431 and a second opening 432
  • the base plate 41 is provided with a first through hole 413 and a second through hole 414
  • the first through hole 413 is opposite to the first opening 431
  • the second through hole 414 is opposite to the second opening 432 .
  • the hole wall of the first opening 431 is protrudingly provided with a first hook 4310, and the first hook 4310 can protrude to the front surface of the substrate 41 through the first through hole 413, and the hole wall of the second opening 432 A second hook 4320 protrudes, and the second hook 4320 can protrude to the front surface of the substrate 41 through the second through hole 414.
  • the first hook 4310 is opposite to the second hook 4320 and both face away from the outside.
  • the direction of the second end 4210b of the scissors foot 4210 is bent to form a shaft groove. That is, the first rotating shaft 4213 on the outer scissor foot 4210 is rotatably connected with the first hook 4310 and the second hook 4320 .
  • the formation method of the second chute can refer to the formation method of the shaft groove.
  • the bottom plate 43 is provided with a third opening 433 and a fourth opening 434
  • the base plate 41 is provided with a third through hole 415 and a fourth through hole.
  • the hole 416 is opposite to the third through hole 415 and the third opening 433
  • the third through hole 415 is opposite to the third opening 433 .
  • the third hook 4330 protrudes from the wall of the third opening 433, and the third hook 4330 can extend to the front surface of the substrate 41 through the third through hole 415.
  • the wall of the fourth opening 434 A fourth hook 4340 protrudes, and the fourth hook 4340 can protrude to the front of the substrate 41 through the fourth through hole 416.
  • the third hook 4330 is opposite to the fourth hook 4340 and both face away from the outside.
  • the direction of the first end 4210a of the scissors foot 4210 is bent to form a second sliding groove. It can be seen that the bending direction of the third hook 4330 and the fourth hook 4340 is opposite to the bending direction of the first hook 4310 and the second hook 4320, and the second sliding shaft 4216 on the inner scissor foot 4211 is aligned with the third hook 4330. And the fourth hook 4340 is slidably connected.
  • Fig. 15 schematically shows the three-dimensional structure of the outer scissors foot 4210, as shown in Fig. 11 and Fig.
  • the first rotation fitting rod 4210e can rotate with the first rotating shaft 4213 in the first through hole 413 and the first opening 431
  • the second rotation fitting rod 4210f can rotate in the second through hole 414 and the second opening hole 432 The inside rotates with the first rotating shaft 4213.
  • the part of the first rotation fitting rod 4210e can be accommodated in the first through hole 413 and the first opening 431, and the part of the second rotation fitting rod 4210f can be accommodated in the second Inside the through hole 414 and the second opening 432 .
  • the rotational connection between the first end 4210a of the outer scissors 4210 and the base plate 41 is realized;
  • the two rotating matching rods 4210f rotate in the hole, which in turn helps to prevent the first end 4210a of the outer scissor foot 4210 from colliding with the base plate 41, so that the noise during the use of the keyboard 40 is relatively small.
  • the thickness of the first rotation fitting rod 4210e and the second rotation fitting rod 4210f is conducive to improving the structural strength of the outer scissors 4210.
  • the first rotation fitting rod 4210e and the second rotation fitting rod 4210f of the outer scissor foot 4210 it is ensured that the first end 4210a of the outer scissor foot 4210 does not Under the premise of interference with the substrate 41, the distance between the first end 4210a of the outer scissors foot 4210 and the rotation axis of the substrate 41 and the substrate 41 is also small, and accordingly, the distance between the keycap 420 and the substrate 41 is also small. If it is smaller, the thickness of the keys 42 is smaller, which in turn helps to ensure that the keyboard 40 can be thinned.
  • this embodiment makes the keycap 420 under the premise of not reducing the thickness of the outer scissors 4210 as much as possible to ensure that the outer scissors 4210 has a higher strength through the above-mentioned settings.
  • the first end 4210a of the outer scissors 4210 will not collide with the base plate 41 , and the thickness of the key 42 can also be reduced, so as to help realize the slimming of the keyboard 40 .
  • the bottom plate 43 may be provided with a first avoidance opening 435
  • the base plate 41 may be provided with a first avoidance through hole 417 .
  • the first avoidance opening 435 is located between the first opening 431 and the third opening 433
  • the first avoidance through hole 417 is located between the first through hole 413 and the third through hole 415 .
  • the third end 4210c of the outer scissors foot 4210 protrudes downward from a side facing the base plate 41 and has a first protruding portion 4210h disposed thereon. That is to say, the thicknesses of the third ends 4210c of the outer scissors feet 4210 are not the same everywhere.
  • the first protruding portion 4210h can also be regarded as the third end 4210c of the outer scissors 4210 is formed by reducing the thickness of some positions, so that the thickness of the third end 4210c of the outer scissors 4210 is different.
  • the thickness of the key 42 is reduced by reducing the thickness of the third end 4210c of the outer scissors 4210, so as to help realize the thinning of the keyboard 40.
  • the side of the fourth end 4210d of the outer scissors 4210 facing the base plate 41 may also protrude downwards with a second protrusion 4210i, so as to ensure that the outer scissors 4210 has a higher strength.
  • the second protruding portion 4210i and the first protruding portion 4210h may be arranged symmetrically along the central line P between the first end 4210a of the outer scissors foot 4210 and the first end 4211a of the inner scissors foot 4211 .
  • the bottom plate 43 may also be provided with a second avoidance opening 436, and the base plate 41 is provided with a second avoidance through hole 418, the second avoidance through hole 418 is directly opposite to and communicated with the second avoidance opening 436, Moreover, when the keycap 420 moves down to the lowest position, the second protruding portion 4210i protrudes into the second avoidance through hole 418 and the second escape opening 436 .
  • the second avoidance opening 436 is located between the second opening 432 and the fourth opening 434
  • the second avoidance through hole 418 is located between the second through hole 414 and the fourth through hole 416 .
  • the function of the second avoidance through hole 418 is similar to that of the first avoidance through hole 417 , which will not be repeated here.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a An indirect connection through an intermediary may be an internal communication between two elements or an interaction relationship between two elements.
  • plural herein means two or more.
  • the term “and/or” in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations.
  • the character "/" in this paper generally indicates that the contextual objects are an “or” relationship; in the formula, the character "/" indicates that the contextual objects are a "division" relationship.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in the implementation of this application.
  • the implementation of the examples constitutes no limitation.

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Abstract

本申请实施例提供一种键盘以及电子设备，旨在解决相关技术中键盘使用过程中由于剪刀脚与基板碰撞而导致出现较大的杂音的问题。本实施例提供的键盘包括：基板和多个按键，每个按键包括键帽和剪刀脚，键帽可伸缩的设置在基板上，且键帽通过剪刀脚与基板连接，基板上设有至少一组柔性抵触件，柔性抵触件位于剪刀脚和基板之间，柔性抵触件能够在键帽下移至最低位置时与剪刀脚相抵触，以阻止剪刀脚与基板碰撞，柔性抵触件起到缓冲作用，以利于消减剪刀脚与基板之间的碰撞噪音，从而有利于解决剪刀脚与基板之间产生碰撞噪音而导致键盘使用过程中存在较大杂音的问题。

Description

键盘以及电子设备
本申请要求于2021年08月04日提交中国国家知识产权局、申请号为202110892611.1、申请名称为“键盘以及电子设备”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
本申请实施例涉及终端技术领域，特别涉及一种键盘以及电子设备。
背景技术
键盘(Key Board)是一种常见的电子产品，它与电子仪器、笔记本电脑(Laptop)等终端设备配合使用，以用于实现输入。按照输入方式划分，键盘可以包括按键式键盘和触控式键盘。
现有的一些按键式键盘包括基板和多个按键，每个按键包括键帽和剪刀脚，剪刀脚的一端与基板转动连接，剪刀脚的另一端与键帽转动连接，键帽通过剪刀脚与基板相连。使用时，用户向下按压键帽来输入字符和控制指令。
然而，键帽被按压而向下移动时，剪刀脚也会随之转动而贴近基板，且在键帽被按压达到最低位置时，剪刀脚与基板之间会发生碰撞并产生响声，进而导致键盘在使用过程中存在较大的杂音。
发明内容
本申请实施例提供一种键盘以及电子设备，可解决现有技术中键盘使用过程中由于剪刀脚与基板碰撞而导致出现较大的杂音的问题。
本申请实施例的第一方面提供一种键盘，包括：基板和多个按键，每个所述按键包括键帽和剪刀脚，所述剪刀脚的一端与所述基板转动连接，所述剪刀脚的另一端与所述键帽转动连接，所述键帽可伸缩的设置在所述基板上；所述基板上设有至少一组柔性抵触件，所述柔性抵触件位于所述剪刀脚和所述基板之间，所述柔性抵触件用于在所述键帽向下移动至最低位置时与所述剪刀脚接触，以阻止所述剪刀脚与所述基板碰撞。
本申请实施例提供的键盘，通过在基板上设置柔性抵触件，柔性抵触件能够在键帽下移至最低位置时与剪刀脚相抵触，使得剪刀脚与基板不直接碰撞，柔性抵触件起到缓冲作用，以利于消减剪刀脚与基板之间的碰撞噪音，从而有利于解决剪刀脚与基板之间产生碰撞噪音而导致键盘使用过程中存在较大杂音的问题。
在一种可能的实施方式中，所述剪刀脚包括呈框架结构的外剪刀脚和内剪刀脚，所述内剪刀脚的第一端和所述外剪刀脚的第一端相对且与均与所述基板转动相连；
所述内剪刀脚的第二端和所述外剪刀脚的第二端相对且均与所述键帽转动连接；
所述内剪刀脚的第三端和第四端分别与所述外剪刀脚的第三端和第四端转动相连， 且所述内剪刀脚的第三端和第四端相对且位于所述内剪刀脚的第一端和第二端之间，所述外剪刀脚的第三端和第四端相对且位于所述外剪刀脚的第一端和第二端之间；
至少一组所述柔性抵触件位于所述外剪刀脚和所述内剪刀脚中的至少一个的第三端和/或第四端的正下方。
在一种可能的实施方式中，每组所述柔性抵触件包括第一柔性段和第二柔性段；
所述第一柔性段至少位于所述内剪刀脚的第三端和第四端中的至少一端与所述基板之间；
所述第二柔性段至少位于所述外剪刀脚的第三端和第四端中的至少一端与所述基板之间；
在所述键帽向下移动至最低位置时，所述第一柔性段与所述内剪刀脚相接触，所述第二柔性段与所述外剪刀脚相接触。
在一种可能的实施方式中，所述第一柔性段和所述第二柔性段沿着所述外剪刀脚的第一端的延伸方向依次设置。
在一种可能的实施方式中，当所述第一柔性段和所述第二柔性段均位于所述内剪刀脚和所述外剪刀脚的第三端的正下方或者第四端的正下方时，所述第一柔性段和所述第二柔性段为一体件。
在一种可能的实施方式中，所述柔性抵触件靠近所述外剪刀脚的第一端，且所述键帽向下移动至最低位置时，所述内剪刀脚的第二端靠近所述柔性抵触件。
在一种可能的实施方式中，所述柔性抵触件为两组，且两组所述柔性抵触件沿着所述外剪刀脚和所述内剪刀脚的第一端的中心连线对称设置。
在一种可能的实施方式中，所述键盘还包括弹性件，所述弹性件的一端与所述基板连接，所述弹性件的另一端与所述键帽抵接，且所述键帽通过所述弹性件在所述基板上可伸缩设置。
在一种可能的实施方式中，所述柔性抵触件与所述弹性件为材质相同的一体式结构。
在一种可能的实施方式中，所述键盘还包括设置在所述基板的下方的底板，所述底板与所述基板连接，所述基板上设有第一避让通孔，所述底板上设有第一避让开孔，所述第一避让通孔与所述第一避让开孔正对；所述外剪刀脚的第三端朝向所述基板的一面向下凸出设置有第一凸出部，在所述键帽向下移动至最低位置时，所述第一凸出部伸入至所述第一避让通孔与所述第一避让开孔内。
在一种可能的实施方式中，所述基板上设有第二避让通孔，所述底板上设有第二避让开孔，所述第二避让通孔与所述第二避让开孔正对；所述外剪刀脚的第四端朝向所述基板的一面向下凸出设置有第二凸出部，在所述键帽向下移动至最低位置时，所述第二凸出部伸入至所述第二避让通孔与所述第二避让开孔内。
在一种可能的实施方式中，所述外剪刀脚的第一端设有第一转轴，所述外剪刀脚的第二端设有第一滑动轴，所述内剪刀脚的第一端设有第二滑动轴，所述内剪刀脚的第二端设有第二转轴；
所述键帽朝向所述基板的一面上设有铰接孔和第一滑槽，所述第二转轴可转动的安装在所述铰接孔内，所述第一滑动轴滑设于所述第一滑槽内；
所述基板上设有转轴凹槽和第二滑槽，所述第一转轴与所述转轴凹槽配合并可相对于所述基板转动，所述第二滑动轴滑设于所述第二滑槽内。
在一种可能的实施方式中，所述基板上设有第一通孔和第二通孔，所述底板上设有第一开孔和第二开孔，所述第一开孔与所述第一通孔正对，所述第二开孔与所述第二通孔正对，所述第一开孔的孔壁设置有第一卡勾，所述第一卡勾由所述第一通孔伸出，所述第二开孔的孔壁设置有第二卡勾，所述第二卡勾由所述第二通孔伸出，所述第一卡勾与所述第二卡勾的弯曲方向相同，且所述第一卡勾与所述第二卡勾共同形成所述转轴凹槽。
本申请实施例的第二方面提供一种电子设备，包括：本申请实施例的第一方面提供的任一项所述的键盘。
本申请实施例提供的电子设备，该电子设备包括键盘。键盘中包括基板和多个按键，每个按键包括键帽和剪刀脚，键帽可伸缩的设置在基板上，且键帽通过剪刀脚与基板连接，基板上设有至少一组柔性抵触件，柔性抵触件位于剪刀脚和基板之间，柔性抵触件能够在键帽下移至最低位置时与剪刀脚相抵触，以阻止剪刀脚与基板碰撞，柔性抵触件起到缓冲作用，以利于消减剪刀脚与基板之间的碰撞噪音，从而有利于解决剪刀脚与基板之间产生碰撞噪音而导致键盘使用过程中存在较大杂音的问题。
附图说明
图1为本申请一实施例提供的一种电子设备的结构示意图；
图2为本申请一实施例提供的另一种电子设备的结构示意图；
图3为本申请一实施例提供的再一种电子设备的结构示意图；
图4为本申请一实施例提供的再一种电子设备的应用场景示意图；
图5为本申请一实施例提供的一种键盘的分解示意图；
图6为本申请一实施例提供的一种键盘中某一按键的局部剖视示意图；
图7为本申请一实施例提供的一种柔性抵触件与基板配合的结构示意图；
图8为本申请一实施例提供的键帽与剪刀脚连接的结构示意图；
图9为本申请一实施例提供的键帽与剪刀脚连接的分解示意图；
图10a为本申请一实施例提供的柔性抵触件在基板的第一种布局方式的结构示意图；
图10b为本申请一实施例提供的柔性抵触件在基板的第二种布局方式的结构示意图；
图10c为本申请一实施例提供的柔性抵触件在基板的第三种布局方式的结构示意图；
图10d为本申请一实施例提供的柔性抵触件在基板的第四种布局方式的结构示意图；
图11为本申请一实施例提供的另一种键盘中某一按键省去键帽的结构示意图；
图12为本申请一实施例提供的弹性件与基板连接的结构示意图；
图13为本申请一实施例提供的基板与底板的分解示意图；
图14为本申请一实施例提供的键帽的结构示意图；
图15为本申请一实施例提供的外剪刀脚的结构示意图。
附图标记说明：
100、电子设备；
10、显示屏；
20、主机；
30、平板电脑；
40、键盘；41、基板；410、柔性抵触件；4100、第一柔性段；4101、第二柔性段；411、第一约束环；412、第二约束环；413、第一通孔；414、第二通孔；415、第三通孔；416、第四通孔；417、第一避让通孔；418、第二避让通孔；42、按键；420、键帽；4200、第一固定块；4200a、第一缺口；4200b、第一铰接孔；4201、第二固定块；4201a、第二缺口；4201b、第二铰接孔；4202、第一滑槽；421、剪刀脚；4210、外剪刀脚；4210a、外剪刀脚的第一端；4210b、外剪刀脚的第二端；4210c、外剪刀脚的第三端；4210d、外剪刀脚的第四端；4210e、第一转动配合杆；4210f、第二转动配合杆；4210g、中间连接杆；4210h、第一凸出部；4210i、第二凸出部；4211、内剪刀脚；4211a、内剪刀脚的第一端；4211b、内剪刀脚的第二端；4211c、内剪刀脚的第三端；4211d、内剪刀脚的第四端；4213、第一转轴；4214、第二转轴；4215、第一滑动轴；4216、第二滑动轴；422、弹性件；43、底板；431、第一开孔；4310、第一卡勾；432、第二开孔；4320、第二卡勾；433、第三开孔；4330、第三卡勾；434、第四开孔；4340、第四卡勾；435、第一避让开孔；436、第二避让开孔；
P、中心连线。
具体实施方式
键盘作为最常用的输入装置，它广泛的应用在电子仪器、笔记本电脑(laptop)等终端设备上。目前，相关技术中提供一种键盘，其包括基板和多个按键，每个按键包括键帽和剪刀脚，键帽通过剪刀脚与基板连接，剪刀脚由硬质材料制成以起到支撑基板的作用。其中，基板为由金属材料制成的金属基板，且基板上形成有电路。使用时，用户敲击按键，键帽被按压而向下移动，当键帽下移至最低位置时，基板上的相关电路被接通以实现输入，与此同时，硬质的剪刀脚与金属基板相触而发出响声，进而导致键盘在使用过程中存在较大的杂音。
针对上述问题，发明人尝试在剪刀脚朝向基板的表面上设置柔性抵触件，按压键帽至最低位置时，剪刀脚上的柔性抵触件与基板相抵触，柔性抵触件与基板之间发生柔性冲击，以有效解决剪刀脚与基板发生刚性冲击而导致键盘在使用过程中出现较大噪音的问题。然而，发明人发现，这样设置，剪刀脚在竖直方向的尺寸增加，则按键的厚度增加，不利于实现键盘轻薄化。
基于此，为了确保剪刀脚与基板之间发生柔性冲击的同时，按键的厚度还能够不增加，发明人尝试将柔性抵触件设置在基板上，且柔性抵触件位于剪刀脚与基板之间，以在键帽向下移动至最低位置时，剪刀脚与基板上的柔性抵触件相触，进而有利于避免剪刀脚直接与基板刚性碰撞，从而有利于避免键盘在使用过程中出现碰撞噪音。由此，得到了一种噪音小、且较轻薄的键盘。
本申请实施例提供一种电子设备，该电子设备可以为台式计算机、笔记本电脑(laptop)、平板电脑(Table)、超级移动个人计算机(ultra-mobile personal computer，UMPC)、手持计算机、对讲机、上网本、POS机、个人数字助理(personal digital assistant，PDA)等移动终端、固定终端或可折叠设备。
图1示意性地显示了一实施例的电子设备100的立体结构。在图1所示的实施例中，电子设备100可以为笔记本电脑。具体的，笔记本电脑可以包括显示屏10和主机20。显示屏10与主机20之间可以转动相连。例如，显示屏10与主机20之间可以通过转轴相连；或者，显示屏10与主机20之间可以通过铰链结构转动相连。或者，在一些示例中，显示屏10和主机20可以是相互独立的设备，例如，显示屏10和主机20之间是可拆卸的，使用时，显示屏10放置在主机20上，而使用结束后，显示屏10与主机20可以相互分离。
需要说明的是，为了实现显示屏10的显示效果，所以，显示屏10与主机20之间电连接，例如，显示屏10与主机20之间可以通过触点实现电连接，或者显示屏10与主机20之间通过柔性基板(Flexible Printed Circuit，FPC)，或者，显示屏10与主机20之间通过导线电连接，此外显示屏10与主机20之间还可以通过无线信号进行无线连接。
图2示意性地显示了另一实施例的电子设备100的立体结构。在图2所示的实施例中，电子设备100可以为台式计算机。具体的，台式计算机可以包括显示屏10和主机20。显示屏10与主机20各自独立设置。显示屏10与主机20之间通过数据线电连接，实现显示屏10的显示效果。
图3示意性地显示了再一实施例的电子设备100的立体结构。在图3所示的实施例中，电子设备100可以为平板电脑30。具体的，和笔记本电脑以及台式计算机类似的，平板电脑30也包括显示屏10和主机20，并且，显示屏10和主机20不是独立的、而是集成在一起。
由图2至图3可知，不论电子设备100为笔记本电脑、台式计算机还是平板电脑30，该电子设备100均可以包括键盘40，键盘40可以向电子设备100提供输入，而电子设备100基于键盘40的输入，执行响应于该输入的操作。
当电子设备100为笔记本电脑时，键盘40可以设置在主机20上。键盘40与主机20内部的控制单元电连接，则键盘40作为笔记本电脑的输入设备。使用时，用户可以按压键盘40上的按键来输入字符或操作指令。
当电子设备100为台式计算机时，键盘40与主机20各自独立设置。键盘40与主机20通过数据线电连接，则键盘40可以作为台式计算机的输入设备。在其他一些可以实现的实施例中，键盘40与主机20也可以通过无线信号(例如蓝牙信号)进行无线连接。
当电子设备100为平板电脑30时，平板电脑30和键盘40可以为相互独立的设备，例如，平板电脑30和键盘40之间可以可拆卸的，使用时，平板电脑30放置在键盘40上，使用结束后，平板电脑30与键盘40可以相互分离。
示例性地，平板电脑30与键盘40之间可以通过触点实现电连接。或者，平板电脑30与键盘40之间通过导线电连接。或者，平板电脑30与键盘40之间还可以通过无线信号(例如蓝牙信号)进行无线连接。其中，本申请实施例中，键盘40例如可以为图3所示的无线键盘。
图4示意性地显示了再一实施例的电子设备100的应用场景。参见图4，平板电脑30和键盘40两者可以各自间隔预定距离摆放使用，并且平板电脑30与键盘40之间可以通过无线信号(例如蓝牙信号)进行无线连接，从而用户可以根据个人的使用习惯，任意调整键盘40的摆放位置。其中，本申请实施例中，键盘40例如可以为图3或图4所示的无线键盘。
在一种实施例中，平板电脑30和键盘40之间，可以通过通信网络进行互联，以实现无线信号的交互。该通信网络可以但不限于为：WI-FI热点网络、WI-FI点对点(peer-to-peer，P2P)网络、蓝牙网络、zigbee网络或近场通信(near field communication，NFC)网络等近距离通信网络。
下面对本申请实施例提供的键盘40的具体结构进行详细阐述。
图5示意性地显示了一种键盘40的分解结构。参见图5，本申请实施例提供的键盘40包括基板41和多个按键42，多个按键42均可伸缩的设置在基板41上，基板41能够为多个按键42提供支撑作用。具体的，每个按键42均可以包括键帽420和设置在键帽420下方的剪刀脚421，键帽420通过剪刀脚421与基板41连接，并且键帽420能够相对于基板41上下移动。基板41上还形成有电路，当键帽420被按压而由初始位置向下移动至最低位置时，基板41上的电路能够被导通，以实现输入。这里，基板41可以为由铝或铜等金属材质制成的印刷电路板、或者是表面上设有印刷电路薄膜的金属板材。
剪刀脚421的一端与基板41转动连接，剪刀脚421的另一端与键帽420转动连接。剪刀脚421由金属或者塑料等硬质材料制成，硬质的剪刀脚421具有较高的结构强度，用于为键帽420提供良好的支撑，使得键帽420受力均衡，则键帽420位于任意高度时均能被用户以一固定力度按压下去。用户按压键帽420下移时，剪刀脚421随之往靠近基板41的方向转动；用户释放键帽420时，键帽420向上移动，剪刀脚421随之往远离基板41的方向转动。
图6示意性地显示了一种键盘40中某一按键42的局部剖视结构。本实施例中，如图5和图6所示，基板41上设有至少一组柔性抵触件410，柔性抵触件410位于剪刀脚421和基板41之间。在键帽420向下移动至最低位置时，剪刀脚421与柔性抵触件410相接触，以阻止剪刀脚421与基板41碰撞。如此设计，当键帽420下压至最低位置时，剪刀脚421不会直接与基板41撞击、而是与柔性抵触件410相抵触，由于柔性抵触件410具有良好的弹性，因此，柔性抵触件410能够起到缓冲作用，以减缓剪刀脚421与基板41之间的碰撞，进而有利于解决按压按键42时剪刀脚421与基板41之间产生碰撞噪音而导致键盘40使用过程中存在较大杂音的问题。
柔性抵触件410的形状是非限制性的，只要柔性抵触件410能代替基板41与剪刀脚421抵触即可，例如，柔性抵触件410可以为块状结构、也可以为杆状结构或者板状结构。
柔性抵触件410凸出设置在基板41朝向键帽420的正面上，示例性地，柔性抵触件410可以粘接在基板41朝向键帽420的正面上，或者，柔性抵触件410可以卡紧在基板41上。图7示意性地显示了一种柔性抵触件410与基板41的配合结构，在图7中，柔性抵触件410为长方体状的细杆，基板41的正面凸出设置有相对设置的第一约束环411和第二约束环412，第一约束环411与基板41共同围成用于卡持柔性抵触件410的第一卡持空间， 第二约束环412与基板41共同围成用于卡持柔性抵触件410的第二卡持空间，使得柔性抵触件410被紧固在第一卡持空间和第二卡持空间内。在一些其他的实施例中，基板41上设有卡槽(图未示出)，柔性抵触件410固定在卡槽内，且柔性抵触件410的厚度大于卡槽的深度，使得柔性抵触件410的部分能够凸出于基板41的正面。
柔性抵触件410的材料可以选自橡胶，例如硅胶或乳胶，或者，柔性抵触件410的材料也可以选自具有弹性的塑料，例如软胶，橡胶和塑料的成本低且二者均具有较高的弹性。
综上，本实施例提供的键盘40通过在基板41上设置柔性抵触件410，柔性抵触件410能够在键帽420下移至最低位置时与剪刀脚421相抵触，使得剪刀脚421与基板41不直接碰撞，且剪刀脚421与基板41之间的冲击作用能够被柔性抵触件410缓和，以利于消减剪刀脚421与基板41之间的碰撞噪音，从而有利于避免键盘40在使用过程中出现杂音。
基板41上对应于剪刀脚421的整个区域均可以设置有柔性抵触件410，以利于确保剪刀脚421不会与基板41直接相撞。在一些实施例中，为了使基板41上对应于键帽420的区域能有更多的部分用来布局电路，柔性抵触件410可以仅设置在部分剪刀脚421与基板41之间，此时，需要根据剪刀脚421的结构、以及剪刀脚421与基板41的连接结构与关系，合理的设置柔性抵触件410的尺寸以及安装位置，以在键帽420下压至最低位置时，剪刀脚421上对应于柔性抵触件410的部分能够在剪刀脚421的其他部分与基板41的正面接触之前先与柔性抵触件410接触，进而确保剪刀脚421不会直接与基板41碰撞。
图8示意性地显示了键帽420与剪刀脚421连接的立体结构，图9示意性地显示了键帽420与剪刀脚421的分解结构。参见图6、图8和图9，剪刀脚421包括外剪刀脚4210和内剪刀脚4211，外剪刀脚4210与内剪刀脚4211均为框架结构，内剪刀脚4211与外剪刀脚4210的内部转动相连。
具体而言，外剪刀脚4210包括相对的第一端4210a与第二端4210b、以及相对的第三端4210c和第四端4210d，外剪刀脚4210的第三端4210c以及第四端4210d位于外剪刀脚4210的第一端4210a和第二端4210b之间。其中，外剪刀脚4210的第一端4210a与基板41转动连接，外剪刀脚4210的第二端4210b与键帽420转动连接。类似的，内剪刀脚4211也包括相对的第一端4211a与第二端4211b、以及相对的第三端4211c和第四端4211d，内剪刀脚4211的第三端4211c以及第四端4211d位于内剪刀脚4211的第一端4211a和第二端4211b之间。其中，内剪刀脚4211的第一端4211a与基板41转动连接，内剪刀脚4211的第二端4211b与键帽420转动连接。
并且，内剪刀脚4211与外剪刀脚4210相互交叉连接，具体的，内剪刀脚4211的第三端4211c与外剪刀脚4210的第三端4210c交叉相连，内剪刀脚4211的第四端4211d与外剪刀脚4210的第四端4210d交叉相连。在键帽420处于初始位置和最低位置之间的任一位置时，内剪刀脚4211的第一端4211a与外剪刀脚4210的第一端4210a均相对，内剪刀脚4211的第二端4211b与外剪刀脚4210的第二端4210b均相对。
本实施例中，在柔性抵触件410仅与剪刀脚421的局部相对应的前提下，每组柔性抵触件410可以配置成与外剪刀脚4210的任一端的局部和内剪刀脚4211的任一端的局部中的至少一者相对应。具体的，为了使柔性抵触件410不仅能与内剪刀脚4211或外剪刀脚4210的任一端相对应，还能够满足同时与内剪刀脚4211及外剪刀脚4210的一端相 对应，每组柔性抵触件410均可以包括第一柔性段4100和第二柔性段4101(参见下述图10a所示)。其中，第一柔性段4100和第二柔性段4101的形状、尺寸等可以相同，也可以不同。这样设置，可以灵活的布置第一柔性段4100和第二柔性段4101，使得柔性抵触件410能够与剪刀脚421相适应。
下面对一组柔性抵触件410的布置位置进行详细说明，在本领域技术人员阅读了下面的技术方案后，通过组合显然可以推知多组柔性抵触件410的布置位置。
在一种示例中，一组柔性抵触件410可以仅设置在外剪刀脚4210与基板41之间或者内剪刀脚4211与基板41之间。以一组柔性抵触件410设置在内剪刀脚4211与基板41之间为例进行说明，当键帽420被按压至最低位置时，内剪刀脚4211与柔性抵触件410相抵，柔性抵触件410能够阻止内剪刀脚4211继续向靠近基板41的方向运动，则与内剪刀脚4211转动相连的外剪刀脚4210也无法继续往靠近基板41的方向运动，进而使得键帽420无法继续向下移动，以免剪刀脚421与基板41相撞。本示例中，一组柔性抵触件410的具体布局方式可以如下：
举例来说，第一柔性段4100和第二柔性段4101可以位于内剪刀脚4211或外剪刀脚4210的同一端的正下方。图10a示意性地显示了柔性抵触件410在基板41的第一种布局方式的立体结构，如图10a所示，第一柔性段4100和第二柔性段4101均设置在内剪刀脚4211的第二端4211b的正下方，或者，第一柔性段4100和第二柔性段4101均设置在内剪刀脚4211的第三端4211c的正下方。值得注意的是，本领域技术人员阅读了上面的技术方案后，显然能够理解第一柔性段4100和第二柔性段4101的其他布置方式，本实施例在此不再一一列出。
再举例说明，第一柔性段4100和第二柔性段4101可以分别位于内剪刀脚4211的相对的两端的正下方，也可以分别位于外剪刀脚4210的相对的两端的正下方。图10b示意性地显示了柔性抵触件410在基板41的第二种布局方式的立体结构，如图10b所示，第一柔性段4100设置在内剪刀脚4211的第三端4211c与基板41之间，第二柔性段4101设置在内剪刀脚4211的第四端4211d与基板41之间。
另外，需要指出的是，在本示例中，第一柔性段4100和第二柔性段4101沿外剪刀脚4210的第一端4210a的延伸方向依次设置。其中，外剪刀脚4210的第一端4210a的延伸方向平行于外剪刀脚4210的第一端4210a与基板41的转动轴线，则第一柔性段4100和第二柔性段4101相当于沿外剪刀脚4210的第一端4210a与基板41的转动轴线间隔的设置。由此，在键帽420下移至最低位置时，外剪刀脚4210或者内剪刀脚4211能够同时与第一柔性段4100以及第二柔性段4101接触，以确保第一柔性段4100和第二柔性段4101均能起到缓冲的作用。
在另一种示例中，一组柔性抵触件410可以同时位于外剪刀脚4210和内剪刀脚4211的正下方。本实施例中，当键帽420被按压至最低位置时，外剪刀脚4210及内剪刀脚4211同时与柔性抵触件410相抵触，以使外剪刀脚4210及内剪刀脚4211均无法碰撞基板41。在上一示例中，当柔性抵触件410只位于内剪刀脚4211的正下方时，为了避免键帽420与柔性抵触件410抵接时外剪刀脚4210能够不触碰基板41，外剪刀脚4210的结构存在一定的限制。相比之下，本示例中，外剪刀脚4210和内剪刀脚4211在柔性抵触件410的缓冲作用下均无法撞到基板41，因此，外剪刀脚4210和内剪刀脚4211的结构可以具有更 多可能的实现形式。在本示例中，一组柔性抵触件410的具体布置方式可以如下：
例如，第一柔性段4100和第二柔性段4101可以位于内剪刀脚4211和外剪刀脚4210的同一端的正下方。第一柔性段4100设置在内剪刀脚4211的第二端4211b与基板41之间，第二柔性段4101设置在外剪刀脚4210的第二端4210b与基板41之间；或者，如图10c所示，第一柔性段4100设置在内剪刀脚4211的第四端4211d与基板41之间，第二柔性段4101设置在外剪刀脚4210的第四端4210d与基板41之间，其中，图10c示意性地显示了柔性抵触件410在基板41的第三种布局方式的立体结构。此时，第一柔性段4100和第二柔性段4101可以沿外剪刀脚4210的第一端4210a的延伸方向间隔设置，或者，第一柔性段4100与第二柔性段4101也可以错开设置。
再例如，第一柔性段4100和第二柔性段4101可以位于内剪刀脚4211和外剪刀脚4210的不同端的正下方。第一柔性段4100设置在内剪刀脚4211的第二端4211b与基板41之间，第二柔性段4101设置在外剪刀脚4210的第三端4210c与基板41之间；或者，如图10d所示，第一柔性段4100设置在内剪刀脚4211的第二端4211b与基板41之间，第二柔性段4101设置在外剪刀脚4210的第四端4210d与基板41之间，其中，图10d示意性地显示了柔性抵触件410在基板41的第四种布局方式的立体结构。其中，为了使第一柔性段4100和第二柔性段4101不受遮挡而能够体现出来，图10a、图10b、图10c和图10d中内剪刀脚4211和/或外剪刀脚4210可以用虚线来表示。
这里，若第一柔性段4100和第二柔性段4101位于同一端的正下方，例如，第一柔性段4100和第二柔性段4101均位于内剪刀脚4211的第三端4211c的正下方，或者，第一柔性段4100和第二柔性段4101分别位于内剪刀脚4211的第四端4211d和外剪刀脚4210的第四端4210d的正下方，此时，第一柔性段4100和第二柔性段4101可以形成为一体件。由此，柔性抵触件410为一个整体，安装柔性抵触件410时，无需将第一柔性段4100和第二柔性段4101分别安装到基板41上，提高了安装效率。
在一些实施例中，柔性抵触件410可以为多组。通过增设柔性抵触件410的组数，更有利于确保剪刀脚421与基板41之间发生柔性冲击、而不是刚性冲击。当柔性抵触件410设有多组时，各组柔性抵触件410的布置位置可以采取上述布局方式中的同一种布局方式、也可以采用不同的布局方式，本实施例对此不做限制。
可以理解，前文描述的柔性抵触件410的布局方式中较佳的实现方式为：至少一组柔性抵触件410位于外剪刀脚4210和内剪刀脚4211中的至少一个的第三端和/或第四端的正下方。该实现方式存在如下可能的情形：柔性抵触件410可以位于内剪刀脚4211的第三端4211c或第四端4211d的正下方、外剪刀脚4210的第三端4210c或第四端4210d的正下方、内剪刀脚4211的第三端4211c和外剪刀脚4210的第三端4210c的正下方、内剪刀脚4211的第三端4211c和外剪刀脚4210的第四端4210d的正下方、内剪刀脚4211的第四端4211d和外剪刀脚4210的第四端4210d的正下方、或者内剪刀脚4211的第四端4211d和外剪刀脚4210的第三端4210c的正下方。
由于外剪刀脚4210和内剪刀脚4211的第一端4210a、4211a均与基板41转动连接，且外剪刀脚4210和内剪刀脚4211交叉并转动连接，因此，键帽420从初始位置下移至最低位置的过程中，外剪刀脚4210和内剪刀脚4211均能够保持交叉，则外剪刀脚4210的第二端4210b以及内剪刀脚4211的第二端4211b与基板41之间始终存在一定的距离，且 内剪刀脚4211和外剪刀脚4210的第三端4210c、4211c及第四端4210d、4211d与基板41之间的距离小于内剪刀脚4211及外剪刀的第二端4210b、4211b与基板41之间的距离。也就是说，相比于第一端4210a、4211a和第二端4210b、4211b，内剪刀脚4211和外剪刀脚4210的第三端4210c、4211c以及第四端4210d、4211d与基板41碰撞的可能性更高。而本实施例通过将柔性抵触件410设置为与第三端4210c、4211c和/或第四端4210d、4211d相对应，使得柔性抵触件410能够更有效的起到阻止剪刀脚421与基板41相撞的作用。
当柔性抵触件410设置在内剪刀脚4211和外剪刀脚4210的第三端和/或第四端的正下方时，柔性抵触件410能够同时用于缓冲内剪刀脚4211以及外剪刀脚4210与基板41之间得到撞击，以免内剪刀脚4211以及外剪刀脚4210与基板41相碰撞。具体来说，在一些实施例中，第一柔性段4100可以位于内剪刀脚4211的第三端4211c和第四端4211d中的一者与基板41之间，第二柔性段4101可以位于外剪刀脚4210的第三端4210c和第四端4210d中的一者与基板41之间。如此设计，键帽420被按压而向下移动至最低位置时，第一柔性段4100与内剪刀脚4211相接触，第二柔性段4101与外剪刀脚4210相接触。
图11示意性地显示了另一种键盘40中某一按键42省去键帽420的立体结构，图12示意性地显示了弹性件422与基板41连接的立体结构。图11和图12所示的示例中，第一柔性段4100位于内剪刀脚4211的第三端4211c与基板41之间，第二柔性段4101位于外剪刀脚4210的第三端4210c与基板41之间，第一柔性段4100与第二柔性段4101沿外剪刀脚4210的第一端4210a的延伸方向间隔的设置。并且，第一柔性段4100和第二柔性段4101可以形成为一体件。由此，柔性抵触件410为一个整体，便于安装。
结合图11和图12，柔性抵触件410可以靠近外剪刀脚4210的第一端4210a，且在键帽420向下移动至最低位置时，内剪刀脚4211的第二端4211b靠近柔性抵触件410。如此，内剪刀脚4211下移至较靠近基板41的位置时，剪刀脚421才能受到柔性抵触件410的阻止而无法下移，则按键42能够被压缩至较低的位置，也即按键42具有较大的行程范围。
由前文可知，柔性抵触件410可以设有多组。进一步地，在图11中，柔性抵触件410可以设有两组，并且两组柔性抵触件410可以沿着一中心连线P对称设置，该中心连线P是指外剪刀脚4210的第一端4210a的中心与内剪刀脚4211的第一端4211a的中心之间的连线。可以理解，该中心连线P平行于基板41的正面、且和外剪刀脚4210的第一端4210a与基板41的转动轴线垂直。通过将两组柔性抵触件410设计为对称设置，各组柔性抵触件410对剪刀脚421的作用是均匀的，使得剪刀脚421与基板41之间的柔性冲击均衡。
柔性抵触件410的厚度需要合理的进行设计，使得柔性抵触件410能够减缓剪刀脚421与基板41之间的冲击力。示例性地，柔性抵触件410的厚度可以大于等于0.1mm、且小于0.5mm。
在上述实施例的基础上，如图11和图12所示，按键42还可以包括弹性件422，弹性件422的一端与基板41连接，弹性件422的另一端与键帽420抵接，弹性件422用于为键帽420提供回弹力，使得键帽420能够伸缩的设置在基板41上。其中，弹性件422容置在框架式的内剪刀脚4211的中间。用户按压键帽420下移时，键帽420压缩弹性件422。用户释放键帽420时，弹性件422释放弹性势能以回弹驱动键帽420上移。
柔性抵触件410可以与弹性件422连接，进而有助于提高柔性抵触件410的安装可靠 性。继续参见图11和图12，弹性件422呈圆台状，且弹性件422的底端为大径端、弹性件422的顶端为小径端，柔性抵触件410可以与弹性件422的外侧壁连接。
示例性地，柔性抵触件410可以与弹性件422通过一体成型工艺形成为一体式结构。其中，形成为一体件的柔性抵触件410和弹性件422的材质是相同的，例如，当柔性抵触件410和弹性件422的材质均为具有弹性的塑料时，柔性抵触件410与弹性件422可以采取注塑工艺加工为一体件。还值得指出的是，当柔性抵触件410设有两组，两组柔性抵触件410沿着中心连线P对称设置，且柔性抵触件410和弹性件422为一体式结构时，加工制造时，加工模具也为对称设置的结构，以便于开模。
图13示意性地显示了键盘40的分解结构，图14示意性地显示了键帽420的立体结构。另外，如图6、图9、图13和图14所示，内剪刀脚4211与基板41和键帽420转动连接的具体实现方式为：外剪刀脚4210的第一端4210a设有第一转轴4213，基板41上设有转轴凹槽(图未示出)，第一转轴4213与转轴凹槽相配合，以使得外剪刀脚4210的第一端4210a能够与基板41转动连接；内剪刀脚4211的第二端4211b设有第二转轴4214，键帽420朝向基板41的表面上设有铰接孔4200b、4201b，第二转轴4214与铰接孔4200b、4201b相配合，以使得内剪刀脚4211的第二端4211b能够与键帽420转动连接。
并且，外剪刀脚4210的第二端4210b设有第一滑动轴4215，键帽420朝向基板41的表面上设有第一滑槽4202，第一滑槽4202沿外剪刀脚4210的第一端4210a与内剪刀脚4211的第一端4211a之间的中心连线P延伸，第一滑槽4202具有背向内剪刀脚4211的第二端4211b的开口，第一滑动轴4215能够与第一滑槽4202滑动配合，以使第一滑动轴4215能够在第一滑槽4202内滑动；内剪刀脚4211的第一端4211a设有第二滑动轴4216，基板41上设有第二滑槽，第二滑槽沿外剪刀脚4210的第一端4210a与内剪刀脚4211的第一端4211a之间的中心连线P延伸，第二滑槽具有背向外剪刀脚4210的第一端4211a的通过口，第二滑动轴4216能够与第二滑槽滑动配合，以使第二滑动轴4216能够在第二滑槽内滑动。
当按键42受到向下按压的压力时，键帽420向下运动，其中，内剪刀脚4211的第二端4211b处的第二转轴4214在铰接孔4200b、4201b内转动，相应的，内剪刀脚4211的第一端4211a处的第二滑动轴4216在第二滑槽内沿中心连线P的延伸方向往第二滑槽外滑动；外剪刀脚4210的第一端4210a处的第一转轴4213在转轴凹槽内转动，相应的，外剪刀脚4210的第二端处的第一滑动轴4215在第一滑槽4202内沿中心连线P的延伸方向往第一滑槽4202外滑动。也就是说，内剪刀脚4211的第二端4211b与外剪刀脚4210的第二端4210b同时向下运动，直至键帽420下移至最低位置。
具体而言，参见图14，键帽420朝向基板41的表面上凸出设置有第一固定块4200和第二固定块4201，第一固定块4200和第二固定块4201沿外剪刀脚4210的第一端4210a的延伸方向相对设置，且第一固定块4200上设有第一铰接孔4200b，第一铰接孔4200b的中心线平行于外剪刀脚4210的第一端4210a的延伸方向，第一固定块4200背离键帽420的一端设有与第一铰接孔4200b连通的第一缺口4200a，第一缺口4200a能够供第二转轴4214通过，使得第二转轴4214能够从第一缺口4200a安装到第一铰接孔4200b内；第二固定块4201上设有第二铰接孔4201b，第二铰接孔4201b的中心线平行于外剪刀脚4210的第一端4210a的延伸方向，第二固定块4201背离键帽420的一端设有与第二铰接 孔4201b连通的第二缺口4201a，第二缺口4201a能够供第二转轴4214通过，使得第二转轴4214也能够从第二缺口4201a安装到第二铰接孔4201b内。本实施例中，第一铰接孔4200b的中心线与第二铰接孔4201b的中心线共线设置，第一铰接孔4200b与第二铰接孔4201b共同形成为能够与第二转轴4214配合的铰接孔。
结合图6、图11、图12和图13，键盘40还包括底板43，底板43设置在基板41的下方，底板43与基板41连接以用于支撑基板41。其中，底板43上设有第一开孔431和第二开孔432，基板41上设有第一通孔413和第二通孔414，第一通孔413与第一开孔431正对，第二通孔414与第二开孔432正对。并且，第一开孔431的孔壁凸出设置有第一卡勾4310，第一卡勾4310能够通过第一通孔413伸出至基板41的正面之上，第二开孔432的孔壁凸出设置有第二卡勾4320，第二卡勾4320能够通过第二通孔414伸出至基板41的正面之上，第一卡勾4310与第二卡勾4320相对设置并均朝向远离外剪刀脚4210的第二端4210b的方向弯曲，以形成转轴凹槽。也即，外剪刀脚4210上的第一转轴4213与第一卡勾4310以及第二卡勾4320转动连接。
第二滑槽的形成方式可以参见转轴凹槽的形成方式，具体的，底板43上设有第三开孔433和第四开孔434，基板41上设有第三通孔415和第四通孔416，第三通孔415和第三开孔433正对，第三通孔415和第三开孔433正对。并且，第三开孔433的孔壁凸出设置有第三卡勾4330，第三卡勾4330能够通过第三通孔415伸出至基板41的正面之上，第四开孔434的孔壁凸出设置有第四卡勾4340，第四卡勾4340能够通过第四通孔416伸出至基板41的正面之上，第三卡勾4330与第四卡勾4340相对设置并均朝向远离外剪刀脚4210的第一端4210a的方向弯曲，以形成第二滑槽。可见，第三卡勾4330以及第四卡勾4340的弯曲方向与第一卡勾4310以及第二卡勾4320的弯曲方向相反，内剪刀脚4211上的第二滑动轴4216与第三卡勾4330以及第四卡勾4340滑动连接。
值得注意的是，在上述实施例中，外剪刀脚4210各处的厚度可以相同、也可以不同。图15示意性地显示了外剪刀脚4210的立体结构，如图11和图15所示，外剪刀脚4210的第一端包括第一转动配合杆4210e、第二转动配合杆4210f以及位于第一转动配合杆4210e与第二转动配合杆4210f之间的中间连接杆4210g，其中，第一转动配合杆4210e以及第二转动配合杆4210f的厚度大于中间连接杆4210g的厚度，且在键帽420伸缩的过程中，第一转动配合杆4210e能够在第一通孔413和第一开孔431内随第一转轴4213转动，第二转动配合杆4210f能够在第二通孔414和第二开孔432内随第一转轴4213转动。当键帽420下移至最低位置时，第一转动配合杆4210e的部分能够容置在第一通孔413和第一开孔431内，第二转动配合杆4210f的部分能够容置在第二通孔414和第二开孔432内。由此，一方面，实现了外剪刀脚4210的第一端4210a与基板41的转动连接，另一方面，键帽420上下移动的过程中，外剪刀脚4210的第一转动配合杆4210e以及第二转动配合杆4210f在孔内转动，继而有助于避免外剪刀脚4210的第一端4210a与基板41碰撞，使得键盘40使用过程中的杂音较小。
而且，在第一转动配合杆4210e以及第二转动配合杆4210f不会撞击基板41的基础上，通过将第一转动配合杆4210e及第二转动配合杆4210f的厚度设置为大于中间连接杆4210g的厚度，有利于提高外剪刀脚4210的结构强度。
此外，可以理解，通过将外剪刀脚4210的第一转动配合杆4210e以及第二转动配合 杆4210f设置为在孔内转动，在确保键帽420下压时外剪刀脚4210的第一端4210a不会与基板41发生干涉的前提下，外剪刀脚4210的第一端4210a与基板41的转动轴线和基板41之间的距离也较小，相应的，键帽420与基板41之间的距离也较小，则按键42的厚度较小，继而有助于确保键盘40能够实现薄型化。
结合上文，从其他角度来说，本实施例通过上述设置，在尽可能的不减小外剪刀脚4210的厚度以确保外剪刀脚4210具有较高的强度的前提下，使得键帽420在下移至最低位置时外剪刀脚4210的第一端4210a不会与基板41发生碰撞的同时，还能够减小按键42的厚度，以助于实现键盘40轻薄化。
进一步地，底板43上可以设有第一避让开孔435，基板41上设有第一避让通孔417，第一避让通孔417与第一避让开孔435正对并连通。其中，第一避让开孔435位于第一开孔431和第三开孔433之间，第一避让通孔417位于第一通孔413与第三通孔415之间。本实施例中，外剪刀脚4210的第三端4210c朝向基板41的一面向下凸出设置有第一凸出部4210h。也就是说，外剪刀脚4210的第三端4210c各处的厚度不相同。其中，第一凸出部4210h还可以看作是外剪刀脚4210的第三端4210c通过减小部分位置的厚度，使得外剪刀脚4210的第三端4210c各处的厚度不同而形成的。这样设计，在尽可能确保外剪刀脚4210具有较高的强度的前提下，通过减小外剪刀脚4210的第三端4210c的厚度来降低按键42的厚度，以助于实现键盘40轻薄化。基于此，利用第一避让通孔417和第一避让开孔435来避让第一凸出部4210h，有利于解决剪刀脚421与基板41之间产生碰撞噪音而导致键盘40使用过程中存在较大杂音的问题。
当然，在本申请的一些实施例中，外剪刀脚4210的第四端4210d朝向基板41的一面也可以向下凸出设置有第二凸出部4210i，以确保外剪刀脚4210具有较高的强度。其中，第二凸出部4210i和第一凸出部4210h可以沿外剪刀脚4210的第一端4210a与内剪刀脚4211的第一端4211a之间的中心连线P对称设置。在该实施例中，底板43上还可以开设有第二避让开孔436，基板41上设有第二避让通孔418，第二避让通孔418与第二避让开孔436正对并连通，并且，在键帽420向下移动至最低位置时，第二凸出部4210i伸入第二避让通孔418和第二避让开孔436内。其中，第二避让开孔436位于第二开孔432和第四开孔434之间，第二避让通孔418位于第二通孔414与第四通孔416之间。这里，第二避让通孔418的作用与第一避让通孔417的作用类似，在此不再赘述。
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应作广义理解，例如，可以是固定连接，也可以是通过中间媒介间接相连，可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
在本申请实施例或者暗示所指的装置或者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实施例的限制。在本申请实施例的描述中，“多个”的含义是两个或两个以上，除非是另有精确具体地规定。
本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的 本申请实施例的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本文中的术语“多个”是指两个或两个以上。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系；在公式中，字符“/”，表示前后关联对象是一种“相除”的关系。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。
可以理解的是，在本申请的实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请的实施例的实施过程构成任何限定。

Claims (14)

  1. 一种键盘，其特征在于，包括：基板和多个按键，
    每个所述按键包括键帽和剪刀脚，所述剪刀脚的一端与所述基板转动连接，所述剪刀脚的另一端与所述键帽转动连接，所述键帽可伸缩的设置在所述基板上；
    所述基板上设有至少一组柔性抵触件，所述柔性抵触件位于所述剪刀脚和所述基板之间，所述柔性抵触件用于在所述键帽向下移动至最低位置时与所述剪刀脚接触，以阻止所述剪刀脚与所述基板碰撞。
  2. 根据权利要求1所述的键盘，其特征在于，所述剪刀脚包括呈框架结构的外剪刀脚和内剪刀脚，所述内剪刀脚的第一端和所述外剪刀脚的第一端相对且与均与所述基板转动相连；
    所述内剪刀脚的第二端和所述外剪刀脚的第二端相对且均与所述键帽转动连接；
    所述内剪刀脚的第三端和第四端分别与所述外剪刀脚的第三端和第四端转动相连，所述内剪刀脚的第三端和第四端相对且位于所述内剪刀脚的第一端和第二端之间，所述外剪刀脚的第三端和第四端相对且位于所述外剪刀脚的第一端和第二端之间；
    至少一组所述柔性抵触件位于所述外剪刀脚和所述内剪刀脚中的至少一个的第三端和/或第四端的正下方。
  3. 根据权利要求2所述的键盘，其特征在于，每组所述柔性抵触件包括第一柔性段和第二柔性段；
    所述第一柔性段至少位于所述内剪刀脚的第三端和第四端中的至少一端与所述基板之间；
    所述第二柔性段至少位于所述外剪刀脚的第三端和第四端中的至少一端与所述基板之间；
    在所述键帽向下移动至最低位置时，所述第一柔性段与所述内剪刀脚相接触，所述第二柔性段与所述外剪刀脚相接触。
  4. 根据权利要求3所述的键盘，其特征在于，所述第一柔性段和所述第二柔性段沿着所述外剪刀脚的第一端的延伸方向依次设置。
  5. 根据权利要求3或4所述的键盘，其特征在于，当所述第一柔性段和所述第二柔性段均位于所述内剪刀脚和所述外剪刀脚的第三端的正下方或者第四端的正下方时，所述第一柔性段和所述第二柔性段为一体件。
  6. 根据权利要求5所述的键盘，其特征在于，所述柔性抵触件靠近所述外剪刀脚的第一端，且所述键帽向下移动至最低位置时，所述内剪刀脚的第二端靠近所述柔性抵触件。
  7. 根据权利要求3至6任一项所述的键盘，其特征在于，所述柔性抵触件为两组，且两组所述柔性抵触件沿着所述外剪刀脚和所述内剪刀脚的第一端的中心连线对称设置。
  8. 根据权利要求1至7任一项所述的键盘，其特征在于，所述键盘还包括弹性件，所述弹性件的一端与所述基板连接，所述弹性件的另一端与所述键帽抵接，且所述键帽通过所述弹性件在所述基板上可伸缩设置。
  9. 根据权利要求8所述的键盘，其特征在于，所述柔性抵触件与所述弹性件为材质相同的一体式结构。
  10. 根据权利要求2至9任一项所述的键盘，其特征在于，所述键盘还包括设置在所述基板的下方的底板，所述底板与所述基板连接，所述基板上设有第一避让通孔，所述底板上设有第一避让开孔，所述第一避让通孔与所述第一避让开孔正对；
    所述外剪刀脚的第三端朝向所述基板的一面向下凸出设置有第一凸出部，在所述键帽向下移动至最低位置时，所述第一凸出部伸入至所述第一避让通孔与所述第一避让开孔内。
  11. 根据权利要求10所述的键盘，其特征在于，所述基板上设有第二避让通孔，所述底板上设有第二避让开孔，所述第二避让通孔与所述第二避让开孔正对；
    所述外剪刀脚的第四端朝向所述基板的一面向下凸出设置有第二凸出部，在所述键帽向下移动至最低位置时，所述第二凸出部伸入至所述第二避让通孔与所述第二避让开孔内。
  12. 根据权利要求10或11所述的键盘，其特征在于，所述外剪刀脚的第一端设有第一转轴，所述外剪刀脚的第二端设有第一滑动轴，所述内剪刀脚的第一端设有第二滑动轴，所述内剪刀脚的第二端设有第二转轴；
    所述键帽朝向所述基板的一面上设有铰接孔和第一滑槽，所述第二转轴可转动的安装在所述铰接孔内，所述第一滑动轴滑设于所述第一滑槽内；
    所述基板上设有转轴凹槽和第二滑槽，所述第一转轴与所述转轴凹槽配合并可相对于所述基板转动，所述第二滑动轴滑设于所述第二滑槽内。
  13. 根据权利要求12所述的键盘，其特征在于，所述基板上设有第一通孔和第二通孔，所述底板上设有第一开孔和第二开孔，所述第一开孔与所述第一通孔正对，所述第二开孔与所述第二通孔正对，所述第一开孔的孔壁设置有第一卡勾，所述第一卡勾由所述第一通孔伸出，所述第二开孔的孔壁设置有第二卡勾，所述第二卡勾由所述第二通孔伸出，所述第一卡勾与所述第二卡勾的弯曲方向相同，且所述第一卡勾与所述第二卡勾共同形成所述转轴凹槽。
  14. 一种电子设备，其特征在于，包括：如权利要求1至13任一项所述的键盘。
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