Inductance type keyboard switch structure

Abstract

The utility model discloses an inductance type keyboard switch structure, which relates to the keyboard field and comprises a base, an upper cover and a press shaft, the base, the upper cover and the press shaft form a keyboard switch, the base is movably connected with the upper cover, the press shaft is arranged at the bottom of the base, a shaft column is fixed at the bottom of the press shaft, an aluminum bar is sleeved on the outer wall of the end part of the shaft column, and the aluminum bar is connected with the press shaft. And a connecting hole is formed in the aluminum bar and can be connected with the shaft column, a convex ring is fixed to the end of the aluminum bar, the bottom of the aluminum bar is conical, and a through hole is formed in the bottom of the base. The aluminum bar connecting hole can be connected with the shaft column at the bottom of the pressing shaft in an inserted mode, the aluminum bar is low in machining cost through a stamping mode, the structure is simple, installation is easy, and the protruding portion arranged on the outer wall of the aluminum bar collides with the blocking edge on the inner wall of the through hole of the bottom shell when the pressing shaft is pressed, so that the sound effect of mechanical collision feeling is generated.

Description

Technical Field

[0001] This utility model relates to the field of keyboards, specifically to an inductive keyboard switch structure. Background Technology

[0002] Inductive keyboard switches, also known as "inductive switches," primarily utilize electromagnetic induction to trigger and recognize key signals. When the switch core is pressed, the aluminum rod inside the switch approaches the sensing coil on the keyboard PCB, causing the aluminum rod to change position in the electromagnetic field. The sensing engine receives and processes these electrical signals, ultimately converting them into the corresponding key travel output, thus achieving accurate recognition of key actions.

[0003] Currently, the aluminum rod inside the inductor shaft has a shaft section at the end, and the shaft section on the aluminum rod needs to be machined by a lathe. Therefore, the cost of the aluminum rod of the inductor shaft is high. In addition, the sound effect produced by the impact between the internal plastic parts and the plastic base when the inductor shaft is pressed does not meet the needs of users. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an inductive keyboard switch structure to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inductive keyboard switch structure, comprising a base, a top cover, and a key shaft, wherein the base, top cover, and key shaft constitute a keyboard switch, and the base and top cover are movably connected. The bottom of the base is provided with a key shaft, and the bottom of the key shaft is fixed with a shaft post. An aluminum rod is sleeved on the outer wall of the end of the shaft post, and the aluminum rod has a connecting hole inside that can be connected to the shaft post. The top outer wall of the aluminum rod is provided with a protruding ring, and the bottom of the aluminum rod is tapered. The bottom of the base has a through hole.

[0006] By adopting the above technical solution, the aluminum rod connecting hole can be inserted into the shaft at the bottom of the press shaft. The aluminum rod is processed by stamping, which makes it low in processing cost and simple in structure and easy to install. The protrusion on the outer wall of the aluminum rod will produce a mechanical collision sound effect when the press shaft is pressed, as the protrusion on the aluminum rod collides with the edge of the inner wall of the through hole of the bottom shell.

[0007] The present invention is further configured such that sliders are fixed on both sides of the pressing shaft, and a sliding groove is provided inside the base.

[0008] Preferably, when the button is pressed down, the slider slides on the inner wall of the groove, thereby limiting the movement direction of the button.

[0009] The present invention is further configured such that a limiting sleeve is fixed at the bottom end of the inner wall of the base, and a spring is sleeved on the outer wall of the limiting sleeve.

[0010] Preferably, the limiting sleeve can conveniently limit the end of the spring, so that when the spring is sleeved on its outer wall, the end of the spring will not move easily, and the spring can drive the pressing shaft to return to its original position after being pressed down on the pressing shaft.

[0011] The present invention is further configured such that a retaining edge is fixed to the inner wall of the through hole, and the inner wall diameter of the retaining edge is larger than the diameter of the aluminum rod, and the inner wall diameter of the retaining edge is smaller than the diameter of the convex ring.

[0012] Preferably, the aluminum rod can be limited by the set baffle. When the aluminum rod is pressed down, the convex ring at the end of the aluminum rod will contact the baffle, which will produce a mechanical collision sound effect.

[0013] The present invention is further configured such that the outer wall of the end of the shaft is in contact with the inner wall of the connecting hole.

[0014] Preferably, the aluminum rod is designed to prevent it from easily separating from the shaft when it is sleeved on the outer wall of the shaft.

[0015] In summary, the present invention has the following main advantages:

[0016] This utility model is equipped with an aluminum rod, a connecting hole, and a convex ring. The connecting hole of the aluminum rod can be inserted into the shaft at the bottom of the press shaft. In particular, the connecting hole inside the aluminum rod can be processed by stamping, which makes the processing cost low and the structure simple and easy to install. The convex part on the outer wall of the aluminum rod will produce a mechanical collision sound effect when the press shaft is pressed, as the convex part on the aluminum rod collides with the edge of the inner wall of the through hole of the bottom shell. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the connection between the shaft and the aluminum rod of this utility model;

[0019] Figure 3 This is a cross-sectional view of the base of this utility model;

[0020] Figure 4 This is a perspective view of the aluminum rod of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base; 2. Top cover; 3. Press shaft; 4. Shaft column; 5. Aluminum rod; 51. Connecting hole; 52. Protruding ring; 6. Spring; 7. Slider; 8. Slide groove; 9. Limit sleeve; 10. Through hole; 11. Edge retainer. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The embodiments of this utility model will be described below based on its overall structure.

[0025] Please see Figures 1-4 The keyboard switch includes a base 1, a top cover 2, and a key shaft 3. The base 1, top cover 2, and key shaft 3 form a keyboard switch. The key shaft 3 is installed between the base 1 and the top cover 2. The key shaft 3 is movably connected to the top cover 2, and the base 1 and the top cover 2 are also movably connected. The bottom of the base 1 is provided with the key shaft 3, and the bottom of the key shaft 3 is fixed with a shaft post 4. An aluminum rod 5 is sleeved on the outer wall of the end of the shaft post 4, and the aluminum rod 5 has a connecting hole 51 inside that can be connected to the shaft post. The top outer wall of the aluminum rod 5 is provided with a protruding ring 52, and the bottom of the aluminum rod 5 is tapered. The bottom of the base 1 has a through hole 10.

[0026] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 3 Slider 7 is fixed on both sides of the pressing shaft 3, and a groove 8 is provided inside the base 1. When the pressing shaft 3 is pressed down, the slider 7 slides on the inner wall of the groove 8, thereby limiting the movement direction of the pressing shaft 3.

[0027] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The bottom of the inner wall of the base 1 is fixed with a limiting sleeve 9, and the outer wall of the limiting sleeve 9 is fitted with a spring 6. The limiting sleeve 9 can conveniently limit the end of the spring 6, so that when the spring 6 is fitted on its outer wall, the end of the spring 6 will not move easily. The spring 6 can drive the pressing shaft 3 to reset after the pressing shaft 3 is pressed down.

[0028] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The inner wall of the through hole 10 is fixed with a retaining edge 11, and the inner diameter of the retaining edge 11 is larger than the diameter of the aluminum rod 5, while the inner diameter of the retaining edge 11 is smaller than the diameter of the convex ring 52. The retaining edge 11 can limit the aluminum rod 5. When the aluminum rod 5 is pressed down, the convex ring 52 at the end of the aluminum rod 5 will contact the retaining edge 11, making it produce a mechanical collision sound effect.

[0029] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The outer wall of the shaft post 4 fits into the inner wall of the connecting hole 51, so that the aluminum rod 5 will not easily separate from the shaft post 4 when it is sleeved on the outer wall of the shaft post 4.

[0030] In practical operation, when the key shaft 3 is pressed, the key shaft 3 can slide through the slider 7 in the groove 8 on the base 1. When the key shaft 3 moves, it simultaneously drives the aluminum rod 5 to move. The aluminum rod 5 passes through the through hole 10 of the base 1. When the aluminum rod approaches the sensing coil on the keyboard PCB board, its position changes from strong to weak in the electromagnetic field through the conical surface of the aluminum rod 5. The sensing engine receives and processes these electrical signals and finally converts them into the corresponding key travel output, so as to achieve accurate recognition of key action.

[0031] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An inductive keyboard switch structure, comprising a base (1), a top cover (2), and a key shaft (3), wherein the base (1), the top cover (2), and the key shaft (3) constitute a keyboard switch, characterized in that: The base (1) has a push shaft (3) at its bottom, and a shaft post (4) is fixed at the bottom of the push shaft (3). An aluminum rod (5) is sleeved on the outer wall of the end of the shaft post (4), and a connecting hole (51) is opened inside the aluminum rod (5) to connect with the shaft post. A protruding ring (52) is provided on the outer wall of the top of the aluminum rod (5). The bottom of the aluminum rod (5) is tapered, and a through hole (10) is opened at the bottom of the base (1).

2. The inductive keyboard switch structure according to claim 1, characterized in that: The push shaft (3) has sliders (7) fixed on both sides, and the base (1) has a groove (8) inside.

3. The inductive keyboard switch structure according to claim 1, characterized in that: The bottom end of the inner wall of the base (1) is fixed with a limiting sleeve (9), and the outer wall of the limiting sleeve (9) is fitted with a spring (6).

4. The inductive keyboard switch structure according to claim 1, characterized in that: The inner wall of the through hole (10) is fixed with a retaining edge (11), and the inner wall diameter of the retaining edge (11) is greater than the diameter of the aluminum rod (5), and the inner wall diameter of the retaining edge (11) is smaller than the diameter of the convex ring (52).

5. The inductive keyboard switch structure according to claim 1, characterized in that: The outer wall of the shaft (4) fits against the inner wall of the connecting hole (51).

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