Key module and keyboard

Abstract

The utility model discloses a key module and keyboard, including keycap, scissors foot, first base plate, elastic conduction element, first Mylar plate and separator plate on the first base plate, the bottom surface of first Mylar plate is equipped with conductive material, the separator plate is equipped with the broken hole corresponding to conductive material, the elastic conduction element is equipped with the elastic conduction element, the elastic conduction element is equipped with the elastic conduction element, and the elastic conduction element is equipped with the elastic conduction element. And the first bottom plate is provided with a positive and negative electrode circuit corresponding to the conductive material. When the key cap is pressed downwards, the elastic conduction element is stressed to deform downwards, when the key cap reaches the bottom, the conduction column of the elastic conduction element is pressed on the first mylar plate to enable the first mylar plate to deform downwards, the conductive material on the back of the first mylar plate makes contact with the positive electrode and the negative electrode on the bottom plate, and the positive electrode circuit and the negative electrode circuit are connected and conducted through the conductive material on the first mylar plate. According to the utility model, the arrangement of a flexible circuit board is eliminated, the weight of the key is effectively reduced, and the key is arranged on the bottom plate or the PCBA board through the circuit, so that more complex circuit design can be realized, electronic elements can be further welded, and other application functions can be realized.

Description

Technical Field

[0001] The utility model relates to the field of keyboard keys, in particular to a key module and a keyboard. Background Art

[0002] At present, the key module includes a keycap, a scissor foot, a flexible circuit board, and a bottom plate. The flexible circuit board is adhered with an elastic element, and a fixed scissor foot structure is set on the bottom plate. When the keycap is pressed down, the elastic element is deformed downward by force. When it reaches the bottom, the conductive column of the elastic element presses on the flexible circuit board, making the upper and lower layers of the circuit contact, and the circuit conduction produces function. The setting of the flexible circuit board leads to an increase in the mass of the key, an increase in assembly cost, and the circuit structure design on the flexible circuit board is relatively limited. Utility Model Content

[0003] Purpose of the utility model: The utility model aims to provide a lightweight key module and keyboard that can be designed with complex circuits.

[0004] Technical solution: The key module of the utility model includes a keycap, a scissor foot, a first base plate, an elastic conductive element, a first Mylar board and a partition arranged on the first base plate, the bottom surface of the first Mylar board is provided with a conductive material, the partition is provided with holes corresponding to the conductive material, and the first base plate is provided with positive and negative circuits corresponding to the conductive material.

[0005] Furthermore, the partition is a partition layer of a flexible circuit board or an insulating layer of a base plate.

[0006] Furthermore, the first base plate is a PCBA board.

[0007] Furthermore, it also includes a second Mylar board and a second bottom plate, the second Mylar board is arranged on the second bottom plate, the second bottom plate is arranged on the first Mylar board, and the second Mylar board and the second bottom plate are both provided with holes corresponding to the conductive material.

[0008] Furthermore, a scissor foot fixing structure is provided on the second bottom plate.

[0009] Furthermore, the conductive material is printed on the bottom surface of the first Mylar board.

[0010] The first bottom plate is provided with a scissor foot fixing structure.

[0011] The utility model provides a keyboard, and the keys thereof adopt the key module structure as described above.

[0012] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: (1) The present invention eliminates the setting of the flexible circuit board, effectively reducing the weight of the keys; (2) The present invention can achieve more complex circuit design by setting the circuit on the base plate or PCBA board, and can also further weld electronic components to achieve other application functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of Example 1 of the utility model in a pressed state;

[0015] Figure 3 This is a schematic diagram of the conductive state structure of Example 1 of the utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of Example 2 of the utility model;

[0017] Figure 5 This is a schematic diagram of the overall structure of Example 3 of the utility model;

[0018] Figure 6 This is a schematic diagram of the overall structure of Example 3 of the utility model in a pressed state;

[0019] Figure 7 This is a schematic diagram of the overall structure of Example 4 of the utility model;

[0020] Figure 8 This is a schematic diagram of the overall structure of Example 5 of the utility model;

[0021] Fig. 9 This is a schematic diagram of the overall structure of Example 5 of the utility model in a pressed state;

[0022] Fig.10 This is a schematic diagram of the overall structure of Example 6 of the utility model;

[0023] Fig.11 It is a schematic diagram of the bottom plate circuit structure of the utility model;

[0024] Fig.12 The utility model is a schematic diagram of the structure of printing conductive material on the bottom surface of the first Mylar board. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0026] Example 1

[0027] like Figure 1-3As shown, a key module provided in this embodiment includes a keycap 1, a scissor foot 2, a first base plate 3, an elastic conductive element 4, a first Mylar board 5 and a partition 6 arranged on the first base plate 3, the bottom surface of the first Mylar board 5 is provided with a conductive material 7, the partition 6 is provided with holes corresponding to the conductive material, the partition 6 is a partition layer of a conventional flexible circuit board, the first base plate 3 is provided with a positive circuit 10 and a negative circuit 11 corresponding to the conductive material, and the first base plate 3 is also provided with a fixing structure of the scissor foot 2. When the keycap is pressed downward, the elastic conductive element 4 is deformed downward by force, and when it reaches the bottom, the conductive column of the elastic conductive element 4 presses on the first Mylar board 5, causing it to deform downward, and the conductive material on the back of the first Mylar board 5 contacts the positive and negative electrodes on the base plate, and the positive and negative circuits are connected and conducted through the conductive material on the first Mylar board 5 to generate a function.

[0028] Example 2

[0029] like Figure 4 As shown, a key module provided in this embodiment is different from that in Embodiment 1 in that the partition plate 6 is an insulating layer of a conventional PCBA board.

[0030] Example 3

[0031] like Figure 5-6 As shown, a key module provided in this embodiment includes a keycap 1, a scissor foot 2, a first base plate 3, an elastic conductive element 4, a first Mylar board 5 arranged on the first base plate 3, a partition 6, a second Mylar board 8, and a second base plate 9, wherein the second Mylar board 8 is arranged on the second base plate 9, and the second base plate 9 is arranged on the first Mylar board 5. The first base plate 3 is a PCBA board, the partition 6 is a spacer layer of a conventional flexible circuit board, the bottom surface of the first Mylar board 5 is provided with a conductive material 7, the first base plate 3 is provided with a positive circuit 10 and a negative circuit 11 corresponding to the conductive material 7, the second base plate 9 is provided with a fixing structure of the scissor foot 2, and the second Mylar board 8 and the second base plate 9 are both provided with holes corresponding to the conductive material 7. When the keycap 1 is pressed downward, the elastic element is deformed downward by the force. When it reaches the bottom, the conductive column of the elastic element passes through the holes in the second Mylar board 8 and the second bottom board 9 and presses onto the first Mylar board 5, causing it to deform downward and contact the positive and negative electrodes on the first bottom board 3, i.e., the PCBA board. The positive and negative electrode circuits are connected and conducted through the conductive material on the first Mylar board 5 to produce a function.

[0032] Example 4

[0033] like Figure 7 As shown, a key module provided in this embodiment is different from that in Embodiment 3 in that the partition plate 6 is an insulating layer printed on the PCBA board.

[0034] Example 5

[0035] like Figure 8-9As shown, the key module provided in this embodiment is different from that in Embodiment 1 in that the first bottom plate 3 is a PCBA board, the first Mylar board 5 is provided with a second bottom plate 9, the second bottom plate 9 is provided with a fixing structure of the scissor leg 2, and a hole is opened at a central position corresponding to the elastic conductive element 4. When the keycap 1 is pressed downward, the elastic conductive element 4 is deformed downward by force, and when it reaches the bottom, the conductive column of the elastic conductive element 4 is pressed onto the first Mylar board 5, so that it deforms downward and contacts the positive and negative electrodes on the first bottom plate 3, i.e., the PCBA board, and the positive and negative electrode circuits are connected and conducted through the conductive material on the first Mylar board 5 to generate a function.

[0036] Example 6

[0037] like Fig.10 As shown, a key module provided in this embodiment is different from that in Embodiment 5 in that the partition plate 6 is an insulating layer printed on the PCBA board.

[0038] Example 7

[0039] The keyboard provided in this embodiment adopts the key module mentioned in any one of embodiments 1-7.

Claims

1. A key module, comprising a key cap (1), a scissor foot (2), a first base plate (3), and an elastic conductive element (4), characterized in that: It also includes a first Mylar board (5) and a partition (6) arranged on the first base plate (3), wherein the bottom surface of the first Mylar board (5) is provided with a conductive material (7), the partition (6) is provided with holes corresponding to the conductive material, and the first base plate (3) is provided with positive and negative circuits corresponding to the conductive material.

2. The key module according to claim 1, characterized in that: The partition (6) is a partition layer of a flexible circuit board or an insulating layer of a base plate.

3. The key module according to claim 1 or 2, characterized in that: The first base plate (3) is a PCBA board.

4. The key module according to claim 3, characterized in that: The invention also comprises a second Mylar board (8) and a second bottom plate (9), wherein the second Mylar board (8) is arranged on the second bottom plate (9), and the second bottom plate (9) is arranged on the first Mylar board (5), and the second Mylar board (8) and the second bottom plate (9) are both provided with holes corresponding to the conductive material.

5. The key module according to claim 4, characterized in that: The second bottom plate (9) is provided with a scissor foot fixing structure.

6. The key module according to claim 1, characterized in that: The conductive material is printed on the bottom surface of the first Mylar board (5).

7. The key module according to claim 1, characterized in that: The first bottom plate (3) is provided with a scissor foot fixing structure.

8. A keyboard, characterized in that: The key adopts the key module structure as described in any one of claims 1-7.

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