CN219350049U

CN219350049U - Double-contact structure of keyboard switch

Info

Publication number: CN219350049U
Application number: CN202223070071.8U
Authority: CN
Inventors: 唐群益
Original assignee: Dongguan Haowen Electronic Technology Co ltd
Current assignee: Dongguan Haowen Electronic Technology Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-07-14
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a double-contact structure of a keyboard switch, which relates to the field of keyboards and comprises a base and an upper cover, wherein the base is movably connected with the upper cover, a shaft core is arranged between the base and the upper cover, a touch rod is fixed on one side of the shaft core, a first touch head and a second touch head are fixed on the bottom of the touch rod, a static terminal is arranged on the top of the base, a movable terminal is arranged on one side of the top of the base, which is positioned on the static terminal, a yielding groove is formed above the static terminal, and contact pieces are fixed on two sides of the yielding groove above the static terminal. According to the utility model, the touch rod, the static terminal and the movable terminal are arranged, so that the arc-shaped elastic sheet is contacted with the first touch head and the second touch head at the bottom of the touch rod, and the arc-shaped elastic sheet is extruded during contact, so that the arc-shaped elastic sheet is far away from the static terminal, thereby controlling the contact A to be separated from the contact B, enlarging the contact area of the contact point, reducing the surface resistance of the contact point to enlarge the passing current, and improving the contact stability through double-contact.

Description

Double-contact structure of keyboard switch

Technical Field

The utility model relates to the field of keyboards, in particular to a double-contact structure of a keyboard switch.

Background

The keyboard is the most commonly used and main input device, and can input English letters, numbers, punctuation marks and the like into a computer through the keyboard, so that commands, input data and the like [1] are sent to the computer, the computer keyboard is developed from a typewriter keyboard, and can be divided into 101 keys, 104 keys, 87 keys and the like according to the number of keys on the keyboard.

The keys are an important component of the keyboard, which is convenient for a user to operate, but the keys are connected through terminal wires.

In the prior art, the electrical connection of the keyboard switch terminal usually uses single-contact, and the single-contact mode has poor contact phenomenon in the long-term use process, so that the keyboard switch does not work due to leakage contact.

Disclosure of Invention

Based on this, the present utility model aims to provide a dual-contact structure of a keyboard switch, so as to solve the technical problems mentioned in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a keyboard switch double contact structure, includes base and upper cover, base and upper cover swing joint, be provided with the axle core between base and the upper cover, one side of axle core is fixed with the touching pole, the bottom of touching the pole is fixed with first touching head and second touching head, the top of base is provided with quiet terminal, and the base top is located one side of quiet terminal and is provided with movable terminal, the slot of stepping down has been seted up to the top of quiet terminal, and the both sides that the quiet terminal top was located the slot of stepping down are fixed with the contact patch, one side of contact patch is fixed with contact A, the top of movable terminal is fixed with the portion of bending, and one side of the portion of bending is fixed with the arc shell fragment, the both sides that the portion of bending is located the arc shell fragment are fixed with the contact block, and one side of contact block is fixed with contact B.

Through adopting above-mentioned technical scheme, through setting up touching pole, quiet terminal and movable terminal for arc shell fragment and the first touch head and the second touch head contact of touching pole bottom, extrusion arc shell fragment during the contact, make the arc shell fragment keep away from quiet terminal, thereby control contact A and contact B separation improve contact stability through double contact.

The utility model is further characterized in that the top of the base is sleeved with a spring, and the spring is positioned below the shaft core.

Through adopting above-mentioned technical scheme, can rebound automatic re-setting after the axle core pushes down through the spring that sets up.

The utility model further provides that the touch bar is arranged obliquely.

Through adopting above-mentioned technical scheme, the touching pole of slope setting is convenient for with arc shell fragment contact.

The utility model further provides that the static terminal and the dynamic terminal are both fixed with pins.

Through adopting above-mentioned technical scheme, can make things convenient for quiet terminal and moving terminal to install through the pin that sets up.

In summary, the utility model has the following advantages:

according to the utility model, the touch rod, the static terminal and the movable terminal are arranged, so that the arc-shaped elastic sheet is contacted with the first touch head and the second touch head at the bottom of the touch rod, and the arc-shaped elastic sheet is extruded during contact, so that the arc-shaped elastic sheet is far away from the static terminal, thereby controlling the contact A to be separated from the contact B, enlarging the contact area of the contact point, reducing the surface resistance of the contact point to enlarge the passing current, and improving the contact stability through double-contact.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a disassembled view of the schematic shaft core and the base of the present utility model;

FIG. 3 is a schematic view of the distribution of a first contact and a second contact according to the present utility model;

fig. 4 is an enlarged view of fig. 2 a in accordance with the present utility model.

In the figure: 1. a base; 2. an upper cover; 3. a shaft core; 4. touching the rod; 41. a first touch; 42. a second touch; 5. a static terminal; 51. a first contact piece; 52. a second contact piece; 53. a relief groove; 6. a movable terminal; 61. a bending part; 62. an arc-shaped elastic sheet; 63. a first contact block; 64. a second contact block; 7. and (3) a spring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

Example 1

The utility model provides a keyboard switch double contact structure, as shown in figures 1-4, including base 1 and upper cover 2, base 1 and upper cover 2 swing joint, be provided with the axle core 3 between base 1 and the upper cover 2, one side of axle core 3 is fixed with touch rod 4, the bottom of touch rod 4 is fixed with first touch head 41 and second touch head 42, drive axle core 3 downwards when upper cover 2 is pressed down, drive touch rod 4 and move downwards when axle core 3 is down, the top of base 1 is provided with static terminal 5, and base 1 top is located one side of static terminal 5 and is provided with movable terminal 6, the groove 53 of stepping down has been seted up to the top of static terminal 5, and the both sides that are located the groove 53 of stepping down are fixed with contact piece 51 in static terminal 5 top, one side of contact piece 51 is fixed with contact A52, the top of movable terminal 6 is fixed with bend 61, and one side of bend 61 is fixed with arc shell fragment 62, both sides that bend 61 are located arc 62 are fixed with contact block 63, and one side of contact block 63 is fixed with contact B64, contact 52 and contact B64 and arc fragment 62 are provided with first arc fragment 42, contact point 52 and arc fragment 42.

Referring to fig. 1-2, in the above embodiment, the top of the base 1 is sleeved with the spring 7, and the spring 7 is located below the shaft core 3, and the spring 7 can rebound to automatically reset after the shaft core 3 is pressed down.

Referring to fig. 4, in the above embodiment, the touch bar 4 is disposed obliquely, and the obliquely disposed touch bar 4 is convenient to contact with the arc spring 62.

Referring to fig. 3, in the above embodiment, pins are fixed at the bottoms of the static terminal 5 and the dynamic terminal 6, and the static terminal 5 and the dynamic terminal 6 can be conveniently installed through the set pins.

Example two

The utility model provides a keyboard switch double-contact structure, as shown in the figure 3 and 4, including base 1 and upper cover 2, base 1 and upper cover 2 swing joint, be provided with the axle core 3 between base 1 and the upper cover 2, one side of axle core 3 is fixed with touch rod 4, the bottom of touch rod 4 is fixed with first touch head 41 and second touch head 42, drive axle core 3 downwards when upper cover 2 is pressed down, drive touch rod 4 and move downwards when axle core 3 is down, the top of base 1 is provided with static terminal 5, and base 1 top is located one side of static terminal 5 and is provided with movable terminal 6, the groove 53 of stepping down has been seted up to the top of static terminal 5, and the both sides that are located the groove 53 of stepping down are fixed with contact piece 51 above static terminal 5, one side of contact piece 51 is fixed with contact A52, the top of movable terminal 6 is fixed with bend 61, and one side of bend 61 is fixed with arc shell fragment 62, both sides that bend 61 are located arc 62 are fixed with contact block 63, and one side of contact block 63 is fixed with contact B64, contact area is set up to be flat contact point 52, contact point A64 and arc contact point 62, contact area is increased with first touch head 41.

The working principle of the utility model is as follows: the upper cover 2 is pressed downwards, the upper cover 2 drives the shaft core 3 to downwards when being pressed downwards, the shaft core 3 drives the touch rod 4 to downwards move when being pressed downwards, the touch rod 4 enters into the abdication groove 53, the first touch latch 41 and the second touch latch 42 are contacted with the arc-shaped elastic sheet 62, the arc-shaped elastic sheet 62 is extruded to one side when the touch rod 4 is contacted with the arc-shaped elastic sheet 62, and then the contact A is separated from the contact B.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims

1. The utility model provides a keyboard switch double contact structure, includes base (1) and upper cover (2), base (1) and upper cover (2) swing joint, its characterized in that: be provided with axle core (3) between base (1) and upper cover (2), one side of axle core (3) is fixed with touching pole (4), the bottom of touching pole (4) is fixed with first touching head (41) and second touching head (42), the top of base (1) is provided with quiet terminal (5), and one side that base (1) top is located quiet terminal (5) is provided with movable terminal (6), the groove of stepping down (53) has been seted up to the top of quiet terminal (5), and the both sides that are located groove of stepping down (53) in quiet terminal (5) top are fixed with contact piece (51), one side of contact piece (51) is fixed with contact A (52), the top of movable terminal (6) is fixed with bending part (61), and one side of bending part (61) is fixed with arc shell fragment (62), bending part (61) are located the both sides of arc shell fragment (62) and are fixed with contact piece (63), and one side of contact piece (63) is fixed with contact B (64).

2. The keyboard switch dual contact structure of claim 1, wherein: the top of the base (1) is sleeved with a spring (7), and the spring (7) is positioned below the shaft core (3).

3. The keyboard switch dual contact structure of claim 1, wherein: the touch rod (4) is obliquely arranged.

4. The keyboard switch dual contact structure of claim 1, wherein: the static terminal (5) and the movable terminal (6) are both fixed with pins.