TWM627858U - Plug and play switch - Google Patents

Abstract

The utility model discloses a quick-plug switch, comprising a PCB board and a switch body arranged on the PCB board. The switch body includes a conduction component, and the conduction component includes a first conduction terminal and a second conduction terminal. The first conducting terminal and the PCB board are electrically connected through a first elastic conducting body, and the second conducting terminal and the PCB board are electrically connected through a second elastic conducting body; When the switch body is defective or damaged, the whole switch body can be directly pulled out for maintenance or replacement, which is convenient and fast for maintenance and replacement; moreover, There is no need to add additional connectors, the overall size and space will not be increased, and the cost will not be increased.

Description

A quick-plug switch

The new model relates to the field of key switches, in particular to a quick-plug switch.

The mechanical switch of the existing mechanical keyboard or the micro switch on the mouse is directly welded on the PCB board, and the defects are very obvious: once the switch is defective or damaged, it is difficult to replace the switch and the maintenance cost is high, and the end user is generally unable to do it by himself. Replacement, even if it can be replaced, wastes a long time, and there is a hidden danger of welding; in addition, this structural design also prevents end users from choosing different types of switches for different keys of the keyboard according to their own preferences.

In order to solve the problem of difficult switch replacement, a plug-in switch has appeared on the market. A connector is welded on the PCB board, and then the switch pins are inserted into the connector to realize the pluggable connection between the switch body and the PCB board. However, this structural design requires additional connectors, which are bulky, occupy a large space, and have high costs.

In view of the above deficiencies, the purpose of this new model is to provide a quick-plug switch, which not only has the electrical conduction function of the switch, but also has the capability of repeated quick-plugging. When the switch body is defective or damaged, the whole switch body can be directly pulled out. It is convenient and quick to repair or replace; moreover, there is no need to add additional connectors, the overall volume and space will not be increased, and the cost will not be increased.

The technical scheme adopted by this new model to achieve the above purpose is:

A quick-plug switch includes a PCB board and a switch body disposed on the PCB board, the switch body includes a conduction component, the conduction component includes a first conduction terminal and a second conduction terminal, the first conduction The terminal and the PCB board are electrically connected through a first elastic conducting body, and the second conducting terminal and the PCB board are electrically connected through a second elastic conducting body.

As a further improvement of the present invention, a first electrical connection area and a second electrical connection area are provided on the PCB board, the first elastic conducting body is electrically connected to the first electrical connection area, and the second electrical connection area is electrically connected. The elastic conducting body is electrically connected with the second electrical connection area.

As a further improvement of the present invention, the first electrical connection area is one of the solder paste coating and the pad, and the second electrical connection area is one of the solder paste coating and the pad.

As a further improvement of the present invention, one of the first conducting terminal and the PCB board is connected to the first elastic conducting body, and one of the second conducting terminal and the PCB board is integrally connected The one is connected with the second elastic conducting body as a whole.

As a further improvement of the present invention, the first elastic conductive body is welded or clamped on the first conductive terminal, or the first elastic conductive body is welded on the PCB board; the second elastic conductive body is welded or It is clamped on the second conducting terminal, or the second elastic conducting body is welded on the PCB board.

As a further improvement of the present invention, the first elastic conducting body is a first spring, the upper part of the first spring is sleeved on the periphery of the first conducting terminal, and the lower part is electrically connected to the first electrical connection area; the second The elastic conducting body is a second spring, the upper part of the second spring is sleeved on the periphery of the second conducting terminal, and the lower part is electrically connected with the second conducting terminal The terminating area is electrically connected.

As a further improvement of the present invention, a first cavity and a second cavity are formed in the switch main body through to the lower end surface of the switch main body, and the first conduction terminal and the upper part of the first spring are located in the first cavity. In a cavity, the second conductive terminal and the upper part of the second spring are located in the second cavity.

The switch main body is provided with at least one elastic undercut structure that is buckled on the PCB board. The elastic undercut structure is mainly composed of an undercut insert block extending toward the PCB board and formed on the undercut insert block. It is composed of a guiding protruding corner, and the guiding protruding corner has an upper guiding inclined surface and a lower guiding inclined surface; and at least one clamping hole is formed on the PCB board for the elastic undercut structure to be clamped.

As a further improvement of the present invention, the conducting component further includes a common terminal, and the common terminal and the PCB board are electrically connected through a third elastic conducting body.

As a further improvement of the present invention, a third electrical connection area electrically connected to the third elastic conducting body is provided on the PCB board, and the third electrical connection area is the connection between the solder paste coating and the pad. One of them; one of the common terminal and the PCB board is connected with the third elastic conducting body; the third elastic conducting body is a third spring, and the upper part of the third spring is sleeved on the third elastic conducting body On the periphery of the common terminal, the lower part is electrically connected to the third electrical connection area; a third cavity is formed in the switch body and penetrates to the lower end surface of the switch body, and the upper part of the common terminal and the third spring is located on the third Inside the three chambers.

The beneficial effects of this new model are:

(1) The electrical connection between the first conductive terminal and the PCB board is realized by adding the first elastic conductive body, and the second conductive body is realized by adding the second elastic conductive body The electrical connection between the through terminal and the PCB board replaces the method of directly soldering the through terminal on the PCB board, so that the first through terminal and the second through terminal have the function of switching electrical conduction, and also It has the ability of repeated quick plugging and unplugging. When the main body of the switch is defective or damaged, the main body of the switch can be directly pulled out for repair or replacement, which is convenient and quick to repair and replace. At the same time, there is no need to add additional connectors, the overall volume and occupied space will not be increased, and the cost will not be increased.

(2) Since both the first elastic conducting body and the second elastic conducting body have elasticity, so that the first elastic conducting body just abuts between the first conducting terminal and the first electrical connection area, the first The two elastic conducting bodies just abut between the second conducting terminal and the second electrical connection area, which can ensure that the first conducting terminal and the first electrical connecting area, the second conducting terminal and the first electrical connecting area The electrical connection between the two electrical connection areas will not exert excessive force on the first conductive terminal and the first electrical connection area, and the second conductive terminal and the second electrical connection area, especially not The first electrical connection area and the second electrical connection area will be resisted with excessive force, therefore, while realizing the function of repeated plugging and unplugging, the conduction performance of the switch can also be ensured.

(3) Through the special structural design of the elastic inversion structure on the switch main body, the switch main body can be directly inserted into the PCB board, so that the switch main body can be positioned and fixed on the PCB board, thereby replacing the traditional solder fixing At the same time, the quick plug-in operation of the switch body on the PCB board can be realized, and the elastic inverted buckle structure can be used repeatedly, and the effect of quick plug-in can be realized without using any tools.

The above is an overview of the new technical solution, and the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

1: PCB board

10: Pedestal

11: The first electrical connection area

12: The second electrical connection area

13: The third electrical connection area

14: Card hole

2: switch body

20: upper cover

21: Conduction components

211: the first conduction terminal

212: Second conduction terminal

213: Common terminal

22: The first cavity

23: Second cavity

24: Elastic inverted buckle structure

241: Upside down insert

242: Guide lobe

2421: Upper Guide Bevel

2422: Down Guide Bevel

25: The third cavity

3: The first elastic conductor

30: guide core

4: The second elastic conductor

40: Reed

5: The third elastic conductor

Figure 1 is a sectional view of one of the new models.

FIG. 2 is a schematic diagram of the structure of the new type of conduction element disposed on the PCB.

FIG. 3 is a schematic structural diagram of the novel switch body combined with the PCB board through the elastic inversion structure.

FIG. 4 is a schematic diagram of the rear structure of the new switch body disposed on the PCB board.

Figure 5 is an exploded view of the overall structure of the new model.

Figure 6 is a schematic diagram of the overall external structure of the new model.

In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementations of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments.

Referring to FIGS. 1 and 2 , an embodiment of the present invention provides a quick-plug switch, which includes a PCB board 1 and a switch body 2 disposed on the PCB board 1 . The switch body 2 includes a conduction component 21 . The component 21 includes a first conducting terminal 211 and a second conducting terminal 212 , the first conducting terminal 211 and the PCB board 1 are electrically connected through two first elastic conducting bodies 3 , and the second conducting terminal 212 is electrically connected to the PCB 1 . The PCB boards 1 are electrically connected through a second elastic conducting body 4 .

The electrical connection between the first conductive terminal 211 and the PCB board 1 is realized by using the first elastic conductive body 3 , and the electrical connection between the second conductive terminal 212 and the PCB board 1 is realized by using the second elastic conductive body 4 , instead of directly soldering the conducting terminal on the PCB board, so that the first conducting terminal 211 and the second conducting terminal 212 have the function of switching electrical conduction, and also have the capability of repeated quick plugging and unplugging.

In this embodiment, a first electrical connection area 11 and a second electrical connection area 12 are disposed on the PCB board 1 , and the first elastic conductive body 3 is electrically connected to the first electrical connection area 11 , the second elastic conductive body 4 is electrically connected to the second electrical connection region 12; for the specific electrical connection method, it can be realized by direct contact or welding; specifically, the first elastic conductive body 3 can be directly contacted The first electrical connection area 11 may be welded on the first electrical connection area 11 ; similarly, the second elastic conductor 4 may directly contact the second electrical connection area 12 or be welded on the second electrical connection area 12 . on the electrical connection area 12 .

When the switch body 2 is mounted on the PCB board 1 , the first elastic conducting body 3 is electrically connected to the first conducting terminal 211 and the first electrical connection area 11 respectively, so as to realize the connection between the first conducting terminal 211 and the first electrical connection area 11 respectively. The electrical connection of the first electrical connection area 11 ; due to the elasticity of the first elastic conductive body 3 , the first elastic conductive body 3 just abuts the first conductive terminal 211 and the first electrical connection area 11 between the first conducting terminal 211 and the first electrical connection region 11 , and can not apply excessive force to the first conducting terminal 211 and the first electrical connecting region 11 . In particular, the first electrical connection area 11 will not be resisted with excessive force, so the switch-on performance can be ensured while the function of repeated plugging and unplugging is realized.

Similarly, the second elastic conducting body 4 is respectively electrically connected to the second conducting terminal 212 and the second electrical connecting area 12 to realize the electrical connection between the second conducting terminal 212 and the second electrical connecting area 12 ; Due to the elasticity of the second elastic conducting body 4 , the second elastic conducting body 4 just abuts between the second conducting terminal 212 and the second electrical connection area 12 , which can ensure the second conducting terminal 212 The electrical connection with the second electrical connection area 12 will not exert excessive force on the second conductive terminal 212 and the second electrical connection area 12 , especially, will not withstand excessive force The second electrical connection region 12, therefore, can ensure the switch-on performance while realizing the function of repeated plugging and unplugging.

In this embodiment, specifically, the first electrical connection region 11 is one of the solder paste coating and the pad, and the second electrical connection region 12 is the solder paste coating and the pad. one of them.

In order to prevent the first elastic conductive body 3 and the second elastic conductive body 4 from being displaced or dropped when the switch body 2 is pulled out, in this embodiment, the first elastic conductive body 3 and the second elastic conductive body 4 are One end of the elastic conducting body 4 is fixed; specifically, one of the first conducting terminal 211 and the PCB board 1 is connected to the first elastic conducting body 3 as a whole. An elastic conductive body 3 is welded or clamped on the first conductive terminal 211 , or the first elastic conductive body 3 is welded on the PCB board 1 ; the second conductive terminal 212 and the PCB board 1 One of them is integrally connected with the second elastic conducting body 4. Preferably, the second elastic conducting body 4 is welded or clamped on the second conducting terminal 212, or the second elastic conducting body 212 is welded. on the PCB board 1 .

When the first elastic conducting body 3 and the first conducting terminal 211 are integrally connected, when the switch body 2 is pulled out from the PCB board 1, the first elastic conducting body 3 leaves the PCB board 1 along with it; When the first elastic conducting body 3 is integrally connected with the PCB board 1 , specifically, it can be welded with the first electrical connection area 11 . When the switch body 2 is pulled out from the PCB board 1 , the first An elastic conductive body 3 remains on the PCB board 1 . Similarly, when the second elastic conducting body 4 is connected to the second conducting terminal 212 as a whole, when the switch body 2 is pulled out from the PCB board 1, the second elastic conducting body 4 leaves the PCB as the switch body 2 is pulled out. Board 1; when the second elastic conductive body 4 is connected to the PCB board 1, it can be welded with the second electrical connection area 12. When the switch body 2 is pulled out from the PCB board 1 , the second elastic conducting body 4 remains on the PCB board 1 .

Therefore, by connecting the first elastic conductive body 3 to any one of the first conductive terminal 211 and the PCB board 1 , the second elastic conductive body 4 is connected to the second conductive terminal 212 and the PCB board 1 . On either of the PCB boards 1 , when the switch body 2 is pulled out, the first elastic conductive body 3 and the second elastic conductive body 4 will not be displaced or dropped.

In this embodiment, the first elastic conducting body 3 is a first spring, the upper part of the first spring is sleeved on the periphery of the first conducting terminal 211 , and the lower part is electrically connected to the first electrical connection area 11 ; the The second elastic conducting body 4 is a second spring, the upper part of the second spring is sleeved on the periphery of the second conducting terminal 212 , and the lower part is electrically connected to the second electrical connection area 12 . Of course, the first elastic conducting body 3 and the second elastic conducting body 4 can also be elastic pieces.

In order to limit the upper part of the first spring and the upper part of the second spring, in this embodiment, a first cavity 22 and a second cavity are formed in the switch main body 2 and penetrate to the lower end surface of the switch main body 2 23. The first conductive terminal 211 and the upper part of the first spring are located in the first cavity 22, and the second conductive terminal 212 and the upper part of the second spring are located in the second cavity 23; The arrangement of the cavity 22 and the second cavity 23 limits the upper part of the first spring and the upper part of the second spring.

In the specific structural design, the first conducting terminal 211 and the second conducting terminal 212 can be set so as not to pass through the first cavity 22 and the second cavity 23, then the switch body 2 is installed in the When on the PCB board 1, the first conductive terminal 211 will not contact the first electrical connection area 11, the second conductive terminal 212 will not contact the second electrical connection area 12, and only the first spring lower part with the first electrical property The connection area 11 is in contact with each other for electrical connection, and the second spring lower part is in contact with the second electrical connection area 12 for electrical connection.

In this embodiment, as shown in FIG. 3 and FIG. 4 , the switch body 2 is provided with at least one elastic undercut structure 24 that is buckled on the PCB board 1 . Specifically, the elastic undercut structure 24 is It is mainly composed of an undercut insert block 241 extending toward the direction of the PCB board 1, and a guide lobe 242 formed on the undercut insert block 241. The guide lobe 242 has an upper guide slope 2421 and a lower guide surface 2421. Guide slope 2422; at least one clamping hole 14 is formed on the PCB board 1 for the elastic undercut structure 24 to be snapped into; preferably, in this embodiment, the switch body 2 has two elastic undercut structures 24, and the The guiding lobes 242 of the two elastic undercut structures 24 are in opposite directions.

When the switch body 2 is installed on the PCB board 1, the undercut inserting blocks 241 of the two elastic undercut structures 24 are inserted into the clamping holes 14 on the PCB board 1. The structure 24 has elasticity, and under the guiding action of the lower guiding inclined surface 2422 of the guiding lobe 242 , the two elastic undercut structures 24 are bent inward, so that the undercut inserts 241 of the two elastic undercut structures 24 are inserted into The switch body 2 is fixed on the PCB board 1 .

When the switch body 2 is pulled upward, the two elastic undercut structures 24 are bent inward due to the elasticity of the elastic undercut structure 24, and under the guiding action of the upper guide inclined surface 2421 of the guide lobe 242, so that the two elastic undercut structures 24 are bent inward. The guide protrusions 242 of the two elastic undercut structures 24 are released from the card holes 14 and are no longer fixed on the PCB board 1 , so that the entire switch body 2 can be pulled out from the PCB board 1 .

Through the special structural design of the elastic inversion structure 24 on the switch main body 2, the switch main body 2 can be directly inserted into the PCB board 1 to realize the switch The main body 2 is positioned and fixed on the PCB board 1, so as to replace the traditional soldering method; at the same time, the quick plug-in operation of the switch main body 2 on the PCB board 1 can be realized, and the elastic inverted structure 24 can be used repeatedly , you can achieve the effect of quick plug-in without using any tools.

In this embodiment, the first conducting terminal 211 and the second conducting terminal 212 in the conducting element 21 can be respectively the first conducting terminal and the second conducting terminal structure, and the contact between the first conducting terminal and the second conducting terminal The switch-on function is realized, and the switch-off function is realized by the separation of the first conduction terminal and the second conduction terminal.

Of course, in this embodiment, the main body of the switch can also be a micro switch, and the conducting component 21 further includes a common terminal 213 . As shown in FIG. 1 and FIG. 2 , the common terminal 213 and the PCB board 1 pass through a third The elastic conductive body 5 is electrically connected; specifically, a third electrical connection area 13 is provided on the PCB board 1 which is electrically connected to the third elastic conductive body 5 , and the third electrical connection area 13 is made of tin. One of paste coating and pad; one of the common terminal 213 and the PCB board 1 is connected with the third elastic conducting body 5 ; the third elastic conducting body 5 is the third A spring, the upper part of the third spring is sleeved on the periphery of the common terminal 213 , and the lower part is electrically connected to the third electrical connection area 13 ; The cavity 25 , the common terminal 213 and the upper part of the third spring are located in the third cavity 25 .

As for the specific structure of the switch body 2 as a micro switch, as shown in FIG. 5 and FIG. 6 , the switch body 2 includes a base 10 , an upper cover 20 arranged on the base 10 , and a guide core arranged in the upper cover 20 . 30. The reed 40 disposed in the upper cover 20 and connected between the first conducting terminal 211 and the second conducting terminal 212, and the above-mentioned conducting pass assembly 21.

When the switch body 2 is in the unpressed state, the guide core 30 does not act on the reed 40 , the end 401 of the reed 40 is separated from the second conducting terminal 212 , then the first conducting terminal 211 and the second conducting terminal 212 are separated. The two conducting terminals 212 are disconnected, that is, the switch is in an off state, as shown in FIG. 1 ; when the guide core 30 is pressed down, the guide core 30 acts on the reed 40 , and the end 401 of the reed 40 occurs If the deformation moves downward, it contacts with the second conducting terminal 212, then the first conducting terminal 211 and the second conducting terminal 212 are connected, and the first conducting terminal 211 passes through the first elastic conducting body 3 and the The two conducting terminals 212 are directly electrically connected to the PCB board 1 through the second elastic conducting body 4 , and the switch is in an on state. When the pressing on the guide core 30 is released, the guide core 30 is reset under the action of the elastic restoring force of the reed 40 .

It should be noted here that the specific structure of the switch main body 2 is not limited to the above-mentioned description, nor is it limited to the structure shown in the accompanying drawings.

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention. Therefore, the same or similar technical features as the above-mentioned embodiments of the present invention are adopted, and other structures obtained are all within the scope of the present invention. within the scope of protection.

11: The first electrical connection area

12: The second electrical connection area

13: The third electrical connection area

2: switch body

21: Conduction components

211: the first conduction terminal

212: Second conduction terminal

213: Common terminal

22: The first cavity

23: Second cavity

25: The third cavity

3: The first elastic conductor

4: The second elastic conductor

5: The third elastic conductor

Claims (10)

A quick-plug switch includes a PCB board and a switch body disposed on the PCB board, the switch body includes a conduction component, the conduction component includes a first conduction terminal and a second conduction terminal, the first conduction The terminal and the PCB board are electrically connected through a first elastic conducting body, and the second conducting terminal and the PCB board are electrically connected through a second elastic conducting body. The quick-plug switch according to claim 1, a first electrical connection area and a second electrical connection area are provided on the PCB board, and the first elastic conducting body is electrically connected to the first electrical connection area. connected, the second elastic conducting body is electrically connected with the second electrical connection area. The quick-plug switch according to claim 2, wherein the first electrical connection area is one of the solder paste coating and the pad, and the second electrical connection area is the solder paste coating and the pad. one of them. The quick-plug switch according to claim 1, one of the first conducting terminal and the PCB is connected to the first elastic conducting body, and the second conducting terminal is connected to both the PCB and the PCB. One of them is integrally connected with the second elastic conducting body. According to the quick-plug switch according to claim 4, the first elastic conducting body is welded or clamped on the first conducting terminal, or the first elastic conducting body is welded on the PCB board; the second The elastic conducting body is welded or clamped on the second conducting terminal, or the second elastic conducting body is welded on the PCB board. The quick-plug switch according to claim 2, wherein the first elastic conducting body is a first spring, and the upper part of the first spring is sleeved on the periphery of the first conducting terminal , the lower part is electrically connected to the first electrical connection area; the second elastic conducting body is a second spring, the upper part of the second spring is sleeved on the periphery of the second conduction terminal, and the lower part is electrically connected to the second electrical connection area connect. The quick-plug switch according to claim 6, wherein a first cavity and a second cavity are formed in the switch main body and penetrate to the lower end surface of the switch main body, and the first conduction terminal and the first cavity are formed. The upper part of the spring is located in the first cavity, and the second conductive terminal and the upper part of the second spring are located in the second cavity. The quick-plug switch according to claim 1, the switch body is provided with at least one elastic undercut structure that is snapped on the PCB board, and the elastic undercut structure is mainly composed of an elastic undercut structure extending in the direction of the PCB board. An upside-down insert block and a guide lobe formed on the upside-down insert block are formed on the guide lobe with an upper guide slope and a lower guide slope; the PCB board is formed with a clip for the elastic reverse buckle structure. into at least one card hole. The quick-plug switch according to any one of claims 1 to 8, wherein the conducting component further includes a common terminal, and the common terminal and the PCB board are electrically connected through a third elastic conducting body. The quick-plug switch according to claim 9, a third electrical connection area electrically connected to the third elastic conducting body is provided on the PCB board, and the third electrical connection area is a solder paste coating and one of the pads; one of the common terminal and the PCB board is connected to the third elastic conducting body; the third elastic conducting body is a third spring, the third spring The upper part is sleeved on the periphery of the common terminal, and the lower part is electrically connected to the third electrical connection area; a third cavity is formed in the switch main body and penetrates to the lower end surface of the switch main body, and the common terminal is connected to the third electrical connection area. The upper part of the three springs is located in the third cavity.

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