CN213781893U

CN213781893U - Ultra-thin fine motion button subassembly

Info

Publication number: CN213781893U
Application number: CN202120013298.5U
Authority: CN
Inventors: 陈爱华
Original assignee: Guangdong Ruixun Electronic Technology Co ltd
Current assignee: Guangdong Ruixun Electronic Technology Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-07-23
Anticipated expiration: 2031-01-05

Abstract

The utility model discloses an ultra-thin micro-motion key assembly, which comprises a bottom plate and a key cap, wherein the bottom plate is provided with an electric element for generating a switching signal, a metal dome, a multifunctional beam and a balance shear frame consisting of a male frame and a female frame are also arranged between the bottom plate and the key cap, one side of the multifunctional beam is positioned right above the metal dome, and the other side is a structural part for triggering the electric element to generate a signal; when the keycap is pressed, the multifunctional cross beam presses the metal dome sheet to drive the shear rack to move downwards, so that the structural part triggers the electrical element to generate a signal. The multifunctional transverse beam is used for switching on and off the electric element to output signals, and the multifunctional transverse beam is matched with the dome sheet to form a short pressing hand feeling; the utility model provides a lift adopts the scissors frame structure, has stable balanced advantage, and collocation snap dome makes the button accomplish ultra-thin, and this button subassembly feels good, sensitive, the stroke is short, is applicable to the notebook computer and uses.

Description

Ultra-thin fine motion button subassembly

Technical Field

The utility model relates to a button device, concretely relates to ultra-thin fine motion button subassembly.

Background

A keyboard is a command and data input device used to operate equipment and also refers to a set of function keys (e.g., typewriter, computer keyboard) arranged to operate a machine or equipment through a system. The keyboard mainly comprises keys.

The existing notebook key is generally developed towards an ultrathin trend, a silica gel key is generally adopted, the silica gel key can be made into silica gel with different travel distances according to different required pressing forces, and when short travel hand feeling is required to be obtained, the silica gel key has certain limitation, so that the limit cannot be broken through, and the notebook key is lighter and thinner. Therefore, the key assembly is mainly used for solving the problems and achieving ultrathin key assembly due to the fact that the switch position is reasonably arranged.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing a practice thrift the space, press balanced ultra-thin fine motion button subassembly.

In order to realize the technical purpose, the utility model discloses a scheme is: an ultrathin micro-motion key assembly comprises a bottom plate and a key cap, wherein an electric element for generating a switching signal is arranged on the bottom plate, a metal dome, a multifunctional beam and a balance scissor frame consisting of a male frame and a female frame are further arranged between the bottom plate and the key cap, one side of the multifunctional beam is positioned right above the metal dome, and the other side of the multifunctional beam is a structural member for triggering the electric element to generate a signal; when the keycap is pressed, the multifunctional cross beam presses the metal dome to drive the shear frame to move downwards, the structural part triggers the electrical element to generate a signal, and when the keycap is loosened, the metal dome rebounds to move upwards to reset through the cross beam to drive the shear frame, so that the structural part leaves the electrical element.

Preferably, the multifunctional beam is arranged at the bottom of the keycap.

Preferably, the multifunctional beam is arranged in the middle of the male frame of the scissor frame.

Preferably, the keycap is provided with a male frame slot for pivoting the male frame and a female frame slot for pivoting the female frame.

Preferably, the bottom plate is provided with a male frame hook for connecting a male frame and a female frame hook for connecting a female frame.

Preferably, the bottom plate is a PCB, and an FCU driving chip LED is arranged on the PCB in a patch mode.

Preferably, the electrical element is a light-emitting diode having an optical path and including a light-emitting element and a light-receiving element, and the structural member is a grating structure.

Preferably, the grating structure is a light blocking member or a light guiding member or a light reflecting member.

Preferably, the electrical element is a hall sensor, and the structural member has a magnetic member for triggering the hall sensor.

Preferably, the multifunctional beam is of a soft rubber structure.

The utility model has the advantages that: the space is reasonably utilized, the multifunctional beam is utilized to make and break the electric element to output signals, and the multifunctional beam is matched with the dome sheet to form a short pressing hand feeling; the utility model provides a lift adopts the scissors frame structure, has stable balanced advantage, and collocation snap dome makes the button accomplish ultra-thin, and this button subassembly feels good, sensitive, the stroke is short, is applicable to the notebook computer and uses.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an exploded view of a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a keycap according to an embodiment of the present invention;

fig. 4 is a schematic partial structure diagram of a second embodiment of the present invention;

fig. 5 is a schematic structural view of a second male frame according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a key cap according to an embodiment of the present invention;

fig. 7 is a schematic partial structure diagram according to a first embodiment of the present invention;

fig. 8 is a schematic structural diagram of the bottom plate of the present invention.

1. A base plate; 11. a hook of the main frame; 12. a male frame hook; 2. a keycap; 21. a slot of the female frame; 22. a male frame slot; 3. a scissor rack; 31. a mother frame; 32. a male frame; 4. snap dome; 5. a light-to-tube; 6. a multifunctional cross beam; 61. a structural member; an LED.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-8, the utility model mainly provides an ultra-thin fine motion key subassembly, including bottom plate 1 and key cap 2, install the electrical element who produces switching signal on the bottom plate, still include a metal dome 4 and a balanced scissor holder 3 of compriseing public frame 32 and female frame 31 between bottom plate and key cap, metal dome 4's structure has the contact steadily, the conductivity is strong, the resilience is stable, it is good to feel, balanced scissor holder 3 can make the button can both be straight up and down when pressing the key cap optional position, press the balance, the key subassembly of this application is ultra-thin, the last down stroke of balanced scissor holder is extremely short, can bring short and short when pressing with metal dome collocation, compromise the advantage of ultra-thin and feeling.

Still including a multi-functional crossbeam 6 between bottom plate 1 and key cap 2, one side of this multi-functional crossbeam 6 is located metal dome 4 directly over, and the opposite side is for being used for triggering the structure 61 that electric elements produced the signal, oppresses metal dome 4 drive scissors frame 3 through multi-functional crossbeam 6 and makes structure 61 trigger electric elements and produce the signal when pressing key cap 2, and metal dome 4 kick-backs when unclamping key cap 2 and drives scissors frame 3 through the crossbeam and go upward to reset, makes structure 61 leave electric elements. The dome piece can be pressed to multi-functional crossbeam, has the function of feeling that causes to feel and cooperation dome piece resilience, in addition, still has the structure that can act on the light path, can realize key assembly's photoelectric function.

In the first embodiment of the present invention, as shown in fig. 6-7, the multifunctional beam 6 is disposed at the bottom of the key cap 2. The multifunctional cross beam is molded in the bottom of the keycap and integrally formed with the keycap, so that when the keycap is pressed, the multifunctional cross beam is linked with the keycap, signals between the electrical elements are changed while the metal dome is pressed, and when the keycap is loosened, the metal dome rebounds to drive the keycap to communicate with the shear holder to move upwards for resetting.

In the second embodiment of the present invention, as shown in fig. 2-5, the multifunctional beam 6 is disposed in the middle of the male frame 32 of the scissor frame 3. The multifunctional cross beam and the male frame are integrated through injection molding, the keycap is pressed, the male frame descends to a position parallel to the female frame, signals between the electrical elements are changed on one side of the multifunctional cross beam, the metal dome sheet is pressed on the other side of the multifunctional cross beam, and after the keycap is loosened, the metal dome sheet rebounds to enable the male frame to ascend and reset.

The multifunctional cross beam 6 is preferably of a soft rubber structure, so that abrasion is reduced when the multifunctional cross beam is in contact with the dome sheet, and in addition, soft protective rubber is arranged at the vertex of the dome sheet, so that the service life of the key is prolonged.

When the electrical element is the light pair tube 5 which is composed of the light emitting element and the light receiving element and has the light path, the structural member 61 is of a grating structure, the grating structure is a light blocking member, a light guiding member or a light reflecting member, the positions of the light emitting element and the light receiving element in the light pair tube are adjusted according to the corresponding grating structure, if the grating structure is the light reflecting member, the light emitting element and the light receiving element are arranged on the same side, and when the structural member moves downwards, light emitted by the light emitting element is reflected to the light receiving element through the structural member.

When the electric element is a Hall sensor, the structural part is provided with a magnetic part for triggering the Hall sensor, and the Hall sensor receives the magnetic flux change of the magnetic part to generate the on-off of an electromagnetic signal when the structural part moves downwards.

The utility model provides a balance scissors frame 3 installs between key cap 2 and bottom plate 1, specifically, public frame 32 is connected in female frame 31's frame through the link is movable, and public frame's both ends are equipped with the link, are equipped with corresponding mounting groove on the female frame, and the link can rotate in the mounting groove, makes public frame and female frame form stable balanced scissors frame structure, and public frame is in parallel state with female frame when the minimum. The key cap 2 is provided with a male frame slot 22 and a female frame slot 21, and one side of the male frame and one side of the female frame are provided with corresponding connecting shafts, so that one side of the male frame and one side of the female frame are pivoted on the key cap; the bottom plate 1 is provided with a male frame hook 12 and a female frame hook 11, and the other sides of the male frame and the female frame are provided with corresponding matching holes, so that the bottoms of the male frame and the female frame are connected on the hooks. The shear shank stroke is shorter, presses the sensitivity, and the structural design of the ultra-thin button of shear shank laminating of this application uses and experiences better.

Preferably, the bottom plate 1 of this application is the PCB board, and the paster is equipped with FCU driver chip LED7 on the PCB board, makes the button have luminous function, and the suitability is stronger.

The application is an ultrathin micro-motion key assembly, the space is reasonably utilized, a multifunctional beam is utilized to make and break an electrical element to output a signal, and the multifunctional beam is matched with a dome sheet to form a short pressing hand feeling; the utility model provides a lift adopts the scissors frame structure, has stable balanced advantage, and collocation snap dome makes the button accomplish ultra-thin, and this button subassembly feels good, sensitive, the stroke is short, is applicable to the notebook computer and uses.

The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.

Claims

1. The utility model provides an ultra-thin fine motion key-press subassembly, includes bottom plate and key cap, install the electrical element who produces switching signal on the bottom plate, its characterized in that: a metal dome, a multifunctional beam and a balance scissor frame consisting of a male frame and a female frame are further arranged between the bottom plate and the keycap, one side of the multifunctional beam is positioned right above the metal dome, and the other side of the multifunctional beam is a structural member used for triggering the electric element to generate a signal; when the keycap is pressed, the multifunctional cross beam presses the metal dome to drive the shear frame to move downwards, the structural part triggers the electrical element to generate a signal, and when the keycap is loosened, the metal dome rebounds to move upwards to reset through the cross beam to drive the shear frame, so that the structural part leaves the electrical element.

2. The ultra-thin jog key assembly as recited in claim 1, wherein: the multifunctional cross beam is arranged at the bottom of the keycap.

3. The ultra-thin jog key assembly as recited in claim 1, wherein: the multifunctional cross beam is arranged in the middle of the male frame of the scissor rack.

4. The ultra-thin jog key assembly as recited in claim 1, wherein: the keycap is provided with a male frame slot hole for pivoting the male frame and a female frame slot hole for pivoting the female frame.

5. The ultra-thin jog key assembly as recited in claim 1, wherein: the bottom plate is provided with a male frame hook used for connecting a male frame and a female frame hook used for connecting a female frame.

6. The ultra-thin micro motion key assembly of any of claims 1-5, wherein: the bottom plate is a PCB, and the patch on the PCB is provided with an FCU driving chip LED.

7. The ultra-thin micro motion key assembly of any of claims 1-5, wherein: the electric element is a light pair tube which is composed of a light emitting element and a light receiving element and provided with a light path, and the structural element is of a grating structure.

8. The ultra-thin jog key assembly as recited in claim 7, wherein: the grating structure is a light blocking part, a light guiding part or a light reflecting part.

9. The ultra-thin micro motion key assembly of any of claims 1-5, wherein: the electrical element is a hall sensor and the structural member has a magnetic member that triggers the hall sensor.

10. The ultra-thin micro motion key assembly of any of claims 1-5, wherein: the multifunctional cross beam is of a soft rubber structure.