CN-224217400-U - Key back structure

CN224217400UCN 224217400 UCN224217400 UCN 224217400UCN-224217400-U

Abstract

The utility model relates to the technical field of keys, in particular to a key back structure which comprises a bottom plate, key caps and component force assemblies, wherein a plurality of the key caps are uniformly arranged on the bottom plate through a sliding mechanism, the component force assemblies are arranged on the key caps, each component force assembly comprises a dispersing groove and a stress groove, the dispersing grooves are formed in the periphery of the key caps, the stress grooves are formed in the dispersing grooves, and when a user presses the key caps, the component force assemblies are arranged, the key caps can transmit pressing force into the dispersing grooves, so that the dispersing grooves can concentrate and transmit the pressing force into the stress grooves, the stress grooves can buffer the pressing force, and as the cross sections of the stress grooves are of bow-shaped structures, the bearing effect of the stress grooves and the durability of the key caps can be improved. The utility model has simple and reasonable structure and ingenious design, and the silica gel structure is directly combined with the elastic sheet and directly installed by removing the spacer layer.

Inventors

GAO RUISAN
SHI YILUN
Cai Zhongling

Assignees

众鼎瑞展电子科技(深圳)有限公司

Dates

Publication Date: 20260508
Application Date: 20250609

Claims (7)

1. A key back structure is characterized by comprising a bottom plate (1), key caps (2) and component force assemblies (3), wherein the plurality of key caps (2) are uniformly arranged on the bottom plate (1) through a sliding mechanism, the component force assemblies (3) are arranged on the key caps (2), the component force assemblies (3) comprise dispersing grooves (301) and stress grooves (302), the dispersing grooves (301) are formed in the periphery of the key caps (2), and the stress grooves (302) are formed in the dispersing grooves (301).
2. A key back structure according to claim 1, wherein the key cap (2) has a thickness of 1.5 mm.
3. The key back structure according to claim 1, wherein the cross section of the dispersion groove (301) is an isosceles trapezoid structure, and the opening direction of the dispersion groove (301) is arranged outwards.
4. A key back structure according to claim 3, wherein the cross section of the stress groove (302) is an arch structure, and the arch end of the stress groove (302) is arranged away from the direction of the dispersion groove (301).
5. The key back structure according to claim 2, further comprising a silencing assembly (4), wherein the silencing assembly (4) is arranged in the key cap (2).
6. The key back structure according to claim 5, wherein the silencing assembly (4) comprises a containing groove (401) and silencing plates (402), the containing groove (401) is formed in the key cap (2), and the silencing plates (402) are fixedly arranged in the containing groove (401) in a linear array.
7. The key back structure of claim 6, wherein said sound attenuation plate (402) is a saw tooth structure.

Description

Key back structure Technical Field The utility model relates to the technical field of keys, in particular to a key back structure. Background The key is a mechanical switch, a circuit is conducted when pressed, the circuit is disconnected when loosened, the key is usually low when pressed and high when loosened due to the existence of a pull-up resistor, and the key can be used for closing the circuit through physical contact, so common types comprise a mechanical key, a film key and a touch key. The novel key structure comprises a key support, a key cap and a key decoration ring, wherein a conductive base cross rib is fixed on the lower side of the key support, the key cap is arranged on the inner side of the key support, the key decoration ring is arranged on the upper side of the key support, and the back surface of the key decoration ring is matched with the top of the key support and is in clearance with the top of the key support. Compared with the prior art, the novel key structure has the advantages that the first positioning hole and the second positioning hole are respectively formed in the key support and the key decorative ring, the first positioning hole corresponds to the positioning Kong Erxiang, the first positioning hole and the second positioning hole respectively comprise two round holes and a square hole, the key is installed uniquely by the aid of the limiting block structure on the key cap, the power supply symbol on the key cannot be inclined, the phenomenon of key clamping does not occur in the novel key structure, the novel key structure is attractive, and the touch feeling and the pressing balance are good. The step that the electrical signal obtained has been reduced through physical structure transmission operation instruction to the button, therefore more reliable, and need frequent operation or under high strength use scene, the durability and the stability of button are higher, can current button in the use, can be great because button thickness is too thick, and lead to the dynamics of pressing of user, and the feel is not good, not only can reduce user's experience sense, can also influence the result of use of button. Disclosure of utility model The utility model aims to provide a key back structure so as to solve the problems of too thick key thickness, larger pressing force, poor hand feeling and poor experience in the prior art. In order to achieve the above purpose, the present utility model provides the following technical solutions: The key back structure comprises a bottom plate, key caps and component force assemblies, wherein the key caps are uniformly arranged on the bottom plate through sliding mechanisms, the component force assemblies are arranged on the key caps, each component force assembly comprises a dispersing groove and a stress groove, the periphery of each key cap is provided with the dispersing groove, and the stress grooves are formed in the dispersing grooves. Preferably, the key cap has a thickness of 1.5 mm. Preferably, the cross section of the dispersion tank is of an isosceles trapezoid structure, and the opening direction of the dispersion tank is outwards arranged. Preferably, the section of the stress groove is of an arch structure, and the arch end of the stress groove is far away from the direction of the dispersion groove. Preferably, the key cap further comprises a silencing assembly, wherein the silencing assembly is arranged in the key cap. Preferably, the silencing assembly comprises a containing groove and silencing plates, the containing groove is formed in the key cap, and the silencing plates are fixedly arranged in the containing groove in a linear array. Preferably, the silencer plate is of a saw-tooth structure. Compared with the prior art, the utility model has the beneficial effects that: 1. According to the utility model, by arranging the component force assembly, when a user presses the key cap, the key cap can be transmitted to the dispersing groove, the dispersing groove is of an isosceles trapezoid structure in cross section, so that the pressing force can be concentrated and transmitted to the stress groove by the dispersing groove, the stress groove can buffer the pressing force, and the stress groove is of an arch structure in cross section, so that the bearing effect of the stress groove can be improved, and the durability of the key cap is improved. 2. According to the utility model, the silencing assembly is arranged, when the fingers of a user are in contact with the key caps, the generated sound can be transmitted into the accommodating groove through the key caps and acts on the silencing plate, and the silencing plate is of a saw-tooth structure, so that the silencing plate can repeatedly refract sound waves, and the silencing plate can reduce the sound generated when the fingers of the user are in contact with the key caps, so that the silencing effect is achieved, and the comfort of the user is improved. Draw