Keyboard key structure

Abstract

The invention relates to the technical field of keyboard keys, and discloses a keyboard key structure which comprises a bottom plate and a boss formed on the bottom plate through stamping, a trigger piece, an elastic body, a scissor foot structure and a key cap are sequentially arranged on the side, where the boss is located, of the bottom plate, and a scissor foot hanging table is arranged on the side, connected with the scissor foot structure, of the boss. The bottom wall of the scissor foot hanging table and the side wall of the side, close to the scissor foot hanging table, of the boss form two abutting areas, the two abutting areas form a limiting clamping groove matched with the scissor foot structure in a clamped mode, the scissor foot structure is embedded in the limiting clamping groove and hinged to the limiting clamping groove, and compared with a traditional hook structure, the boss and the scissor foot hanging table which are formed through stamping are convenient to use. The height of the hanging table relative to the bottom plate is reduced, the height of the elastic body can be reduced, the strength of the scissor foot hanging table is improved, the risks of deformation and hook breakage are reduced, the contact area of the hanging table and the scissor foot is increased, and stability is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of keyboard keys and relates to a keyboard key structure. Background Art

[0002] Keyboards, as a common input device, are widely used in computers and various electronic products. With the widespread use of electronic products, keyboards, as a means of human-computer communication, occupy a very important position in the entire system. The existing technology provides many types of computer keyboard key structures, among which the technology that uses the scissor-shaped principle structure to realize the internal structure of keyboard keys is the most popular.

[0003] The existing keyboard key structure includes a keycap, a scissor foot, an elastomer, a thin film circuit board and a support plate. The scissor foot includes an inner frame and an outer frame hinged around the inner frame. The two central axes of the inner frame cooperate with the central axis holes of the outer frame to achieve the hinge between the two, thereby realizing the opening and closing action of the front blade foot. This is a mature process structure. However, the scissor foot structure itself is connected to the support plate through a hook structure formed by a 90° bend on the support plate. On the one hand, the hook structure requires a certain height, which affects the overall height of the key; on the other hand, there is a risk of breakage when the hook structure is bent; on the other hand, when connected through the hook structure, the contact area between the hook and the scissor foot is small.

[0004] Therefore, how to provide a keyboard key structure so that the overall height of the keyboard keys can be reduced and the service life of the keys can be increased has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to overcome the problems existing in the related art, the present application aims to provide a keyboard key structure that can reduce the height of the hanging platform relative to the base plate, increase the strength of the scissor foot hanging platform, and increase the contact area between the hanging platform and the scissor foot to improve the service life.

[0006] The present application is implemented through the following technical solutions.

[0007] The technical solution provides a keyboard key structure, including a base plate, a plurality of bosses are formed on the base plate, and a trigger, an elastic body, a scissor foot structure and a key cap are sequentially arranged on the side where the bosses of the base plate are located;

[0008] The boss includes a flat plate portion parallel to the bottom plate and a connecting portion for connecting the flat plate portion and the bottom plate, and the flat plate portion protrudes from the connecting portion in a first direction to form a scissor-leg hanging platform;

[0009] The lower surface of the scissor leg hanging platform forms a first abutment area, and the side surface of the connecting portion facing the scissor leg hanging platform forms a second abutment area. The first abutment area and the second abutment area form a limit groove that is engaged with the assembly column of the scissor leg structure, and a hinge is formed between the scissor leg structure and the boss;

[0010] A bottom plate is provided with a slot body just below each scissor leg hanging platform, and the slot body is used to accommodate the assembly column of the scissor leg structure.

[0011] This technical solution forms a stamping area by grooving the bottom plate, and then forms a boss directly on the bottom plate by stamping. The boss protrudes in a first direction to form a hanging platform, thereby reducing the height of the hanging platform, reducing the risk of breakage, and increasing the product life.

[0012] The present invention is further configured such that the boss and the base plate are integrally stamped.

[0013] The present invention is further configured such that two connecting parts are provided, which are respectively arranged on both sides of the flat plate part, and the boss is a trapezoidal structure with an open bottom.

[0014] The present invention is further configured such that the scissor-leg hanging platform is in a trapezoidal structure, or a rectangular structure, or a quasi-rectangular structure.

[0015] The present invention is further configured that the scissor leg structure includes a second bracket and a first bracket rotatably connected to the inside of the second bracket;

[0016] The first bracket and the second bracket are respectively provided with a first assembly column and a second assembly column at one end connected to the boss.

[0017] The present invention is further configured such that the first assembly column is arranged on a side of the first bracket close to the bottom plate and protrudes eccentrically downward relative to the first bracket, and the first assembly column is embedded in the corresponding groove body to form abutment limit at both ends;

[0018] The second assembly column is arranged on a side of the second bracket close to the bottom plate and protrudes eccentrically downward relative to the second bracket. The second assembly column is embedded in the corresponding groove to form abutment limit at both ends.

[0019] The present invention is further configured that the boss is provided with two groups corresponding to the first bracket and the second bracket respectively;

[0020] One set of bosses is farther away from the center of the base plate than the other set of bosses;

[0021] The first assembly column and the second assembly column are rotatably connected to the inside of the limiting slot formed by the corresponding boss.

[0022] The present invention is further configured such that the triggering member is a conductive film, which is arranged between the bottom plate and the scissor leg structure.

[0023] The present invention is further configured such that the elastic body is conductive silicone particles or a conductive silicone shell, which is arranged in an empty installation groove area arranged in the middle of the scissor leg structure.

[0024] The present invention is further configured such that the other end of the scissor leg structure away from the end connected to the boss is a mounting end, the mounting end is provided with a snap-fit ​​structure for snapping with the key cap, and the key cap and the scissor leg structure are connected via the snap-fit ​​structure.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0027] Figure 1 It is a structural schematic diagram shown in an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of the bottom plate structure shown in an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of a boss structure shown in an embodiment of the present application;

[0030] Figure 4 is a schematic diagram of a cross-sectional structure of a boss shown in an embodiment of the present application;

[0031] Figure 5 is a top view of a base plate shown in an embodiment of the present application;

[0032] Figure 6 It is a schematic diagram of the scissor leg structure shown in one embodiment of the present application.

[0033] Figure numerals: 1. bottom plate; 2. boss; 21. flat plate portion; 22. connecting portion; 3. scissor foot hanging platform; 4. trigger member; 5. elastic body; 6. scissor foot structure; 61. first bracket; 611. first assembly column; 62. second bracket; 621. second assembly column; 7. key cap; 8. first abutting area; 9. second abutting area; 10. limit slot; 11. slot body. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0036] This embodiment discloses a keyboard key structure, such as Figure 1-Figure 6 As shown, it comprises a base plate 1, a plurality of bosses 2 are formed on the base plate 1, and a trigger member 4, an elastic body 5, a scissor foot structure 6 and a key cap 7 are sequentially arranged on the side where the bosses 2 of the base plate 1 are located;

[0037] The boss 2 includes a flat plate portion 21 parallel to the bottom plate 1 and a connecting portion 22 for connecting the flat plate portion 21 and the bottom plate 1. The flat plate portion 21 protrudes from the connecting portion 22 in a first direction to form a scissor foot hanging platform 3.

[0038] The first direction refers to a direction parallel to the bottom plate 1 and perpendicular to the rotation direction of the assembly column of the scissor leg structure 6, so that the assembly column is rotatably connected to the bottom of the scissor leg hanging platform 3;

[0039] The lower surface of the scissor leg hanging platform 3 forms a first abutment area 8, and the side surface of the connecting portion 22 facing the scissor leg hanging platform 3 forms a second abutment area 9. The first abutment area 8 and the second abutment area 9 form a limit groove 10 that is engaged with the assembly column of the scissor leg structure 6, and a hinge is formed between the scissor leg structure 6 and the boss 2;

[0040] The bottom plate 1 is provided with a slot body 11 directly below each scissor leg hanging platform 3 , and the slot body 11 is used to accommodate the assembly column of the scissor leg structure 6 .

[0041] It should be noted that, with the help of the inner frame and outer frame connected in the middle of the scissor leg structure 6, each of which has a distance from the connecting end of the hanging platform, the scissor leg structure 6 can be embedded in the limiting slot 10 to generate a restraining force, and form a hinged connection relationship with the help of friction.

[0042] By adjusting the structure of the base plate 1, the boss 2 and the scissor foot hanging platform 3 connected to the scissor foot structure 6 can be directly stamped out by stamping. Compared with the hook structure, while improving the production efficiency, it reduces the height of the scissor foot hanging platform 3 relative to the base plate 1, and thus the elastomer 5 can be set to be lighter and thinner.

[0043] On the other hand, the contact area between the limit slot 10 formed by the boss 2 and the scissor foot hanging platform 3 and the scissor foot structure 6 is significantly increased, thereby improving the movement stability; the reduction in the height of the scissor foot hanging platform 3 can shorten the height of the elastomer 5, and when the keycap is pressed downward, the stroke is shortened, making the key pressing sensitive and stable; the scissor foot hanging platform 3 is directly formed by a stamping process, without the need to use a 90° bending process to form a hook, and harder materials can be used without worrying about the risk of bending and breakage.

[0044] like Figure 2 As shown, the boss 2 and the base plate 1 are integrally formed by stamping.

[0045] It should be noted that the stamping difficulty is reduced and the yield rate is improved.

[0046] like Figure 2 and Figure 4 As shown, two connecting parts 22 are provided, which are respectively arranged on both sides of the flat plate part 21, and the boss 2 is a trapezoidal structure with an open bottom.

[0047] like Figure 1-Figure 6 As shown, the scissor-leg hanging platform 3 is in a trapezoidal structure, or a rectangular structure, or a quasi-rectangular structure.

[0048] It should be noted that the boss 2 can be connected to the base plate 1 through the connecting portion 22 at only one end, and the boss 2 and the base plate 1 only need to be stably connected. The scissor leg hanging platform 3 can be other structures so that the boss 2 forms a limiting slot 10 that is stably connected to the scissor leg structure 6.

[0049] like Figure 6 As shown, the scissor leg structure 6 includes a second bracket 62 and a first bracket 61 rotatably connected to the inside of the second bracket 62;

[0050] The first bracket 61 and the second bracket 62 are respectively provided with a first assembly column 611 and a second assembly column 621 at one end connected to the boss 2 .

[0051] It should be noted that the scissor foot structure 6 is the scissor foot in the prior art, the difference being that the first assembly column 611 and the second assembly column 621 provided at the connecting end of the scissor foot and the hanging platform need to be adjusted in conjunction with the boss 2 and the groove body 11 so that: the scissor foot structure 6 is embedded in the limiting slot 10 and forms a hinge.

[0052] like Figure 1-Figure 6 As shown, the first assembly column 611 is disposed on the side of the first bracket 61 close to the bottom plate 1 and protrudes eccentrically downward relative to the first bracket 61. The first assembly column 611 is embedded in the corresponding groove 11 to form abutment limit at both ends;

[0053] The second assembly column 621 is disposed on a side of the second bracket 62 close to the bottom plate 1 and protrudes eccentrically downward relative to the second bracket 62 . The second assembly column 621 is embedded in the corresponding groove 11 to form abutment limit at both ends.

[0054] It should be noted that the groove body 11 opened on the base plate 1 can form a corresponding avoidance space for the first assembly column 611 and the second assembly column 621, so that the first assembly column 611 and the second assembly column 621 can be rotatably connected to the inside of the corresponding limiting groove body 10 on the basis of being embedded in the groove body 11, so as to reduce the height of the key structure and further achieve the purpose of reducing the height of the elastomer 5.

[0055] The height of the scissor foot hanging platform 3 is lower than that of the hook in the prior art, so the positions of the first assembly column 611 and the second assembly column 621 provided in the scissor foot structure 6 also need to be adjusted to cooperate with the boss 2 to form a hinge.

[0056] like Figure 1-Figure 6 As shown, the boss 2 is provided with two groups corresponding to the first bracket 61 and the second bracket 62 respectively;

[0057] One group of bosses 2 is farther away from the center of the bottom plate 1 than the other group of bosses 2;

[0058] The first assembly post 611 and the second assembly post 621 are rotatably connected to the inside of the limiting slot 10 formed by the corresponding boss 2 .

[0059] It should be noted that the position of the boss 2 relative to the bottom plate 1 needs to match the connection position of the scissor leg structure 6 and the bottom plate 1 , so that the bottom plate 1 is connected to the scissor leg structure 6 through the boss 2 .

[0060] like Figure 1-Figure 6 As shown, the trigger member 4 is a conductive film, which is arranged between the bottom plate 1 and the scissor leg structure 6 .

[0061] like Figure 1-Figure 6 As shown, the elastic body 5 is a conductive silicone particle, or a conductive silicone shell, which is arranged in the vacant groove area for installation arranged in the middle of the scissor leg structure 6.

[0062] It should be noted that the trigger member 4 and the elastic body 5 are both prior art.

[0063] like Figure 1-Figure 6 As shown, the other end of the scissor leg structure 6 away from the end connected to the boss 2 is a mounting end, and the mounting end is provided with a snap-fit ​​structure for engaging with the key cap 7, and the key cap 7 and the scissor leg structure 6 are connected through the snap-fit ​​structure.

[0064] It should be noted that the connection between the scissor leg structure 6 and the key cap 7 is a prior art.

[0065] Working principle: the boss 2 connected to the scissor foot structure 6 is directly punched out by stamping, which reduces the height of the scissor foot hanging platform 3 relative to the base plate 1, so that the elastomer 5 can be set to be lighter and thinner. At the same time, the contact area between the limit slot 10 formed by the boss 2 and the scissor foot structure 6 is significantly increased, thereby improving the movement stability; the reduction in the height of the scissor foot hanging platform 3 can avoid the collision between the hanging platform and the keycap 7, or reduce the risk of noise generated by the collision between the hanging platform and the keycap 7; the scissor foot hanging platform 3 is directly formed by a stamping process, and there is no need to use a 90° bending process to form a hook, so harder materials can be used without worrying about the risk of bending and breakage.

[0066] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A keyboard key structure, characterized in that: The invention comprises a base plate (1), a plurality of bosses (2) are formed on the base plate (1), and a trigger member (4), an elastic body (5), a scissor foot structure (6) and a key cap (7) are sequentially arranged on the side where the bosses (2) of the base plate (1) are located; The boss (2) comprises a flat plate portion (21) parallel to the bottom plate (1) and a connecting portion (22) for connecting the flat plate portion (21) and the bottom plate (1), and the flat plate portion (21) protrudes from the connecting portion (22) in a first direction to form a scissor-leg hanging platform (3); The lower surface of the scissor leg hanging platform (3) forms a first abutment area (8), and the side surface of the connecting portion (22) facing the scissor leg hanging platform (3) forms a second abutment area (9). The first abutment area (8) and the second abutment area (9) form a limiting groove (10) that is engaged with the assembly column of the scissor leg structure (6), and a hinge is formed between the scissor leg structure (6) and the boss (2); A bottom plate (1) is provided with a groove body (11) located directly below each scissor leg hanging platform (3), and the groove body (11) is used to accommodate the assembly column of the scissor leg structure (6).

2. The keyboard key structure according to claim 1, characterized in that: The boss (2) and the bottom plate (1) are integrally formed by stamping.

3. The keyboard key structure according to claim 1, characterized in that: Two connecting parts (22) are provided, which are respectively arranged on both sides of the flat plate part (21), and the boss (2) is a trapezoidal structure with an open bottom.

4. The keyboard key structure according to claim 1, characterized in that: The scissor-leg hanging platform (3) is in a trapezoidal structure, or a rectangular structure, or a quasi-rectangular structure.

5. The keyboard key structure according to claim 1, characterized in that: The scissor leg structure (6) comprises a second bracket (62) and a first bracket (61) rotatably connected to the inside of the second bracket (62); One end of the first bracket (61) and the second bracket (62) connected to the boss (2) is respectively provided with a first assembly column (611) and a second assembly column (621).

6. The keyboard key structure according to claim 5, characterized in that: The first assembly column (611) is arranged on a side of the first bracket (61) close to the bottom plate (1) and protrudes eccentrically downward relative to the first bracket (61). The first assembly column (611) is embedded in the interior of the corresponding groove body (11) to form abutment limit at both ends. The second assembly column (621) is arranged on a side of the second bracket (62) close to the bottom plate (1) and protrudes eccentrically downward relative to the second bracket (62). The second assembly column (621) is embedded in the interior of the corresponding groove body (11) to form abutment limit at both ends.

7. The keyboard key structure according to claim 5, characterized in that: The boss (2) is provided with two groups corresponding to the first bracket (61) and the second bracket (62) respectively; One group of bosses (2) is farther away from the center of the base plate (1) than the other group of bosses (2); The first assembly column (611) and the second assembly column (621) are rotatably connected to the inside of the limiting slot (10) formed by the corresponding boss (2).

8. The keyboard key structure according to claim 1, characterized in that: The triggering member (4) is a conductive film and is arranged between the bottom plate (1) and the scissor leg structure (6).

9. The keyboard key structure according to claim 1, characterized in that: The elastic body (5) is a conductive silicone particle or a conductive silicone shell, and is arranged in an installation vacant groove area arranged in the middle of the scissor leg structure (6).

10. The keyboard key structure according to claim 1, characterized in that: The other end of the scissor leg structure (6) away from the end connected to the boss (2) is a mounting end, and the mounting end is provided with a snap-fit ​​structure that cooperates with the key cap (7), and the key cap (7) and the scissor leg structure (6) are connected via the snap-fit ​​structure.

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