Key switch capable of avoiding deformation of contact piece

Abstract

The utility model discloses a key switch capable of avoiding deformation of a contact piece, which comprises a base, an upper cover, a push handle piece, a rotating shaft piece and the contact piece, a plurality of terminal contact pieces are embedded at the position of the base, the upper cover is covered on the base, the push handle piece is arranged at the position of the upper cover in a movable lifting mode along the vertical direction, and the rotating shaft piece and a driven deflection piece are arranged between the push handle piece and the base. The driven deflection piece is provided with an annular disc seat part, the upper end of the disc seat part is provided with a finger inserting part, the lower end of the disc seat part is provided with a limiting convex edge part, the contact piece is arranged at the lower end of the disc seat part of the driven deflection piece, the limiting convex edge part is located in a ring of the contact piece, and the disc seat part is further provided with a pin part riveted with the contact piece. Compared with the structure of the existing driven deflection piece, the driven deflection piece provided by the utility model does not cause the deformation of the contact piece after being used for a long time, thereby avoiding the condition of poor conduction of a product.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of key switch, especially to a key switch capable of avoiding deformation of contact sheet. BACKGROUND

[0002] Key switches are widely used in electronic devices and white goods. There are two kinds of existing key switches. One is a non-locking type key switch, and the other is a locking type key switch. The non-locking type key switch is disclosed in Chinese Utility Model Patent No. CN220357993U, and the locking type key switch is disclosed in Chinese Utility Model Patent No. CN220651868U. Both the non-locking type key switch and the locking type key switch include a driven deflector and a shaft member. The shaft member is movably connected to the driven deflector. The driven deflector is fixedly provided with a contact sheet. As shown in the accompanying drawings, the existing driven deflector 10 is provided with connecting lugs 15 for connecting the contact sheet 20. The connecting lugs 15 on both sides of the contact sheet 20 are prone to twisting after long-term use, causing the contact sheet 20 to deform and resulting in poor product conduction. Therefore, we propose a key switch capable of avoiding deformation of the contact sheet. Figure 7 The utility model discloses a key switch capable of avoiding deformation of the contact sheet. SUMMARY

[0003] The utility model discloses a key switch capable of avoiding deformation of the contact sheet.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a key switch capable of avoiding deformation of the contact sheet, comprising a base, an upper cover, a push member, a shaft member, and a contact sheet. A plurality of terminal contact sheets are embedded in the base. The upper cover is provided on the base. The push member is movably arranged on the upper cover in the vertical direction. The shaft member and the driven deflector are arranged between the push member and the base. The driven deflector is provided with a disc seat part in the form of a ring. The upper end of the disc seat part is provided with a finger part. The lower end of the disc seat part is provided with a limiting convex edge part. The contact sheet is arranged at the lower end of the disc seat part of the driven deflector. The limiting convex edge part is located within the ring of the contact sheet. The disc seat part is further provided with a pin part riveted to the contact sheet.

[0005] Further, the first outer diameter of the disc seat part is greater than or equal to the second outer diameter of the contact sheet.

[0006] Further, the limiting convex edge part of the driven deflector is in the form of a C. The two pin parts are respectively located on both sides of the limiting convex edge part.

[0007] Further, the first spring is arranged between the push member and the rotating shaft member, and the second spring is arranged between the rotating shaft member and the driven deflection member.

[0008] Further, the base is embedded with a first terminal contact, a second terminal contact and a third terminal contact, the first terminal contact extends outwardly from the base with two main terminal feet, the second terminal contact extends outwardly from the base with a first side terminal foot, and the third terminal contact extends outwardly from the base with a second side terminal foot.

[0009] The utility model discloses the beneficial effect lies in: compared with prior art driven deflection member's structure, the driven deflection member of the utility model does not cause the deformation of contact piece to avoid causing the product conduction bad condition. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the sectional view of specific embodiment one.

[0011] Figure 2 It is the structural exploded view of specific embodiment one.

[0012] Figure 3 It is the assembly exploded view of the driven deflection member and contact piece of the utility model.

[0013] Figure 4 It is the sectional view of specific embodiment two.

[0014] Figure 5 It is the structural exploded view of specific embodiment two.

[0015] Figure 6 It is the structural schematic view of the base of the utility model.

[0016] Figure 7 It is the structural schematic view of prior art driven deflection member and contact piece.

[0017] Reference signs: 10, driven deflection member;11, disc seat part;D1, first outer diameter;12, insertion finger part;13, limiting convex edge part;14, pin part;20, contact piece;D2, second outer diameter;30, base;31, first terminal contact;311, main terminal foot;32, second terminal contact;321, first side terminal foot;33, third terminal contact;331, second side terminal foot;40, upper cover;50, push member;60, rotating shaft member;70, first spring;80, second spring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantage of the utility model more clear, the utility model will be described further in detail below in conjunction with the drawings.

[0019] Specific embodiment one: combined with the Figure 1 and the Figure 2 As shown in the button switch, the button switch is a non-locking type button switch, comprising a base 30, an upper cover 40, a push member 50, a rotating shaft member 60, a contact sheet 20, and a plurality of terminal contact sheets are embedded at the base 30. The upper cover 40 is provided on the base 30. The structure of the upper cover 40 of specific embodiment one specifically refers to the non-locking type button switch disclosed in the Chinese utility model patent with the publication number CN220357993U.

[0020] The push member 50 is vertically movably arranged at the upper cover 40. The rotating shaft member 60 and the driven deflection member 10 are both arranged between the push member 50 and the base 30. Combined with the Figure 2 and the Figure 3 As shown, the driven deflection member 10 is provided with a disc seat part 11 in the form of a ring. The upper end of the disc seat part 11 is provided with an insertion finger part 12. The lower end of the disc seat part 11 is provided with a limiting convex edge part 13. The contact sheet 20 is arranged at the lower end of the disc seat part 11 of the driven deflection member 10. The limiting convex edge part 13 is located within the ring of the contact sheet 20. The disc seat part 11 is further provided with a pin part 14 riveted with the contact sheet 20. The pin part 14 of the driven deflection member 10 is riveted with the contact sheet 20. When the driven deflection member 10 drives the contact sheet 20 to communicate with the terminal contact sheets at the base 30, the disc seat part 11 of the driven deflection member 10 specifically supports the contact sheet 20. Compared with the existing structure of the driven deflection member in the Figure 7 , the driven deflection member 10 of the present utility model will not cause the contact sheet 20 to deform for a long time, thereby avoiding the situation of causing the product to be poorly conducted.

[0021] As shown in the Figure 3 , the first outer diameter D1 of the disc seat part 11 is greater than or equal to the second outer diameter D2 of the contact sheet 20. The limiting convex edge part 13 of the driven deflection member 10 is in the form of a C shape. The two pin parts 14 are respectively located at the two sides of the limiting convex edge part 13. The present utility model specifically further comprises a first spring 70 and a second spring 80. The first spring 70 is arranged between the push member 50 and the rotating shaft member 60. The second spring 80 is arranged between the rotating shaft member 60 and the driven deflection member 10.

[0022] The first terminal contact sheet 31, the second terminal contact sheet 32, and the third terminal contact sheet 33 are embedded at the base 30. The first terminal contact sheet 31 extends outwardly at the base 30 to form two main end feet 311. The second terminal contact sheet 32 extends outwardly at the base 30 to form a first side end foot 321. The third terminal contact sheet 33 extends outwardly at the base 30 to form a second side end foot 331.

[0023] Specific embodiment two: combined with the Figure 4 and the Figure 5As shown, a key switch capable of avoiding deformation of the contact sheet, the key switch is a locking type key switch, comprising a base 30, an upper cover 40, a push member 50, a rotating shaft member 60, a contact sheet 20, a plurality of terminal contact sheets are embedded at the base 30, the upper cover 40 is arranged on the base 30, and the structure of the upper cover 40 of embodiment one specifically refers to the locking type key switch disclosed in the Chinese utility model patent with the authorization announcement number CN220651868U.

[0024] The push member 50 is vertically movably arranged at the upper cover 40, the rotating shaft member 60 and the driven deflection member 10 are both arranged between the push member 50 and the base 30, and the specific structure of the driven deflection member 10 is shown in the accompanying drawings. Figure 3 and the accompanying drawings Figure 4 As shown, the driven deflection member 10 is provided with a disc seat part 11 in the form of a ring, the upper end of the disc seat part 11 is provided with an insertion finger part 12, the lower end of the disc seat part 11 is provided with a limiting convex edge part 13, the contact sheet 20 is arranged at the lower end of the disc seat part 11 of the driven deflection member 10, the limiting convex edge part 13 is located within the ring of the contact sheet 20, and the disc seat part 11 is further provided with a pin part 14 riveted with the contact sheet 20. The pin part 14 of the driven deflection member 10 is riveted with the contact sheet 20, when the driven deflection member 10 drives the contact sheet 20 to communicate with the terminal contact sheets at the base 30, the disc seat part 11 of the driven deflection member 10 specifically plays a supporting role for the contact sheet 20, compared with the existing structure of the driven deflection member in the prior art Figure 7 , the driven deflection member 10 of the utility model will not cause the contact sheet 20 to deform for a long time, thereby avoiding causing the product to be in a poor conduction state.

[0025] As shown in the accompanying drawings Figure 3 , the first outer diameter D1 of the disc seat part 11 is greater than or equal to the second outer diameter D2 of the contact sheet 20. The limiting convex edge part 13 of the driven deflection member 10 is in the form of a C shape, and the two pin parts 14 are respectively located at the two sides of the limiting convex edge part 13. The utility model specifically further comprises a first spring 70 and a second spring 80, the first spring 70 is arranged between the push member 50 and the rotating shaft member 60, and the second spring 80 is arranged between the rotating shaft member 60 and the driven deflection member 10.

[0026] The first terminal contact sheet 31, the second terminal contact sheet 32 and the third terminal contact sheet 33 are embedded at the base 30, the first terminal contact sheet 31 extends outwardly at the base 30 to form two main end feet 311, the second terminal contact sheet 32 extends outwardly at the base 30 to form a first side end foot 321, and the third terminal contact sheet 33 extends outwardly at the base 30 to form a second side end foot 331.

[0027] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] It should be understood that the utility model uses the terms "first", "second" and the like to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the utility model, and similarly, the "second" information can also be referred to as "first" information.

[0029] The above description is not any limitation on the technical range of the utility model, and any modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model still belong to the range of the technical scheme of the utility model.

Claims

1. A push button switch that avoids contact piece deformation, comprising a driven deflector (10), a base (30), a top cover (40), a push handle (50), a pivot (60), and contact pieces (20), wherein a plurality of terminal contact pieces are embedded in the base (30), the top cover (40) covers the base (30), the push handle (50) is vertically movable and raised at the top cover (40), and the pivot (60) and the driven deflector (10) are both disposed between the push handle (50) and the base (30), characterized in that: The driven deflection piece (10) is provided with a disc seat part (11) in ring shape, the upper end of the disc seat part (11) is provided with an inserting finger part (12), the lower end of the disc seat part (11) is provided with a limiting convex edge part (13), the contact sheet (20) is arranged at the lower end of the disc seat part (11) of the driven deflection piece (10), the limiting convex edge part (13) is located in the ring of the contact sheet (20), the disc seat part (11) is further provided with a pin part (14) riveted with the contact sheet (20).

2. The key switch capable of preventing deformation of a contact sheet according to claim 1, characterized in that: The first outer diameter (D1) of the disc seat part (11) is greater than or equal to the second outer diameter (D2) of the contact sheet (20).

3. The key switch according to claim 2, wherein: The limiting convex edge part (13) of the driven deflection piece (10) is in C shape, and the two pin parts (14) are respectively located on both sides of the limiting convex edge part (13).

4. The key switch capable of avoiding deformation of the contact sheet according to claim 1 or 3, characterized in that: Further comprising a first spring (70) and a second spring (80), the first spring (70) is arranged between the push button part (50) and the rotating shaft part (60), and the second spring (80) is arranged between the rotating shaft part (60) and the driven deflection piece (10).

5. The key switch capable of preventing deformation of a contact sheet according to claim 1, wherein: The base (30) is embedded with a first terminal contact sheet (31), a second terminal contact sheet (32) and a third terminal contact sheet (33), the first terminal contact sheet (31) extends outwardly from the base (30) to two main end feet (311), the second terminal contact sheet (32) extends outwardly from the base (30) to a first side end foot (321), and the third terminal contact sheet (33) extends outwardly from the base (30) to a second side end foot (331).

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