CN114743820A

CN114743820A - Contact connection auxiliary structure for microswitch

Info

Publication number: CN114743820A
Application number: CN202210170711.8A
Authority: CN
Inventors: 孙莉
Original assignee: Wuxi Senior Technology Co ltd
Current assignee: Wuxi Senior Technology Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-07-12

Abstract

The invention discloses a contact connection auxiliary structure for a micro switch, which comprises a shell, wherein one end of the top of the shell is rotatably connected with a touch rocker, one end of the touch rocker, which is far away from a rotating shaft, is fixedly connected with an iron block, one end of the top of the shell, which is close to the iron block, is fixedly connected with an electromagnet, the electromagnet is magnetically connected with the iron block, one end of the top of the shell, which is close to the rotating shaft of the touch rocker, is provided with a telescopic groove, a transmission rod is inserted in the telescopic groove, when the touch switch is pressed downwards, an extrusion rod at the bottom of the connection rod is contacted with a switch, so that the electromagnet downwards adsorbs the iron block, the force required for pressing the touch rocker is reduced, and the problem that the circuit connection is unstable due to insufficient extrusion force is avoided; two wiring board departments inside this micro-gap switch all are equipped with the U-shaped connection piece, and conductive contact's upper and lower both ends also are the arc, and the area of contact of guide piece when having improved circuit connection avoids because the flow of electric current is not smooth, the short circuit that leads to.

Description

Contact connection auxiliary structure for microswitch

The technical field is as follows:

the invention belongs to the technical field of switch auxiliary accessories, and particularly relates to a contact connection auxiliary structure for a microswitch.

Background art:

the microswitch is a contact mechanism with a micro contact interval and a quick action mechanism, which performs the switching action by using a specified stroke and a specified force, and the microswitch is externally provided with a driving rod, so the microswitch is called a sensitive switch because the contact interval of the microswitch is smaller, and a quick switch actuated by pressing is widely used for the switch of a door in an anti-theft system and the like.

Among the prior art, traditional micro-gap switch's contact mostly all uses the mode of inserted sheet to connect, when the switch is opened, two guide vanes have certain contained angle, lead to the flow of electric current not smooth, lead to the short circuit easily, and micro-gap switch outside touches the wane and pressing the back, needs to use invariable power to press always, if when manual pressing, the dynamics is mastered not accurately, leads to the circuit disconnection of switch easily, leads to the circuit connection unstability.

The invention content is as follows:

the invention aims to provide a contact connection auxiliary structure for a microswitch for solving the problems, the device is provided with an electromagnet and an iron block at a touch rocker of the switch, when the touch switch is pressed downwards, an extrusion rod at the bottom of a connecting rod is contacted with the switch, so that the electromagnet adsorbs the iron block downwards, the electromagnet adsorbs the iron block, the force required for pressing the touch rocker is reduced, and the unstable circuit connection caused by insufficient extrusion force is avoided; two wiring board departments inside this micro-gap switch all are equipped with the U-shaped connection piece, and conductive contact's upper and lower both ends also are the arc, and the area of contact of guide piece when having improved circuit connection avoids because the flow of electric current is not smooth, the short circuit that leads to.

In order to solve the above problems, the present invention provides a technical solution:

the utility model provides an auxiliary structure is connected to contact for micro-gap switch, includes the shell, the top one end of shell is rotated and is connected with and touches the wane, touch the wane and keep away from the one end fixedly connected with iron plate of axis of rotation, the top of shell and the one end fixedly connected with electro-magnet that is close to the iron plate, the electro-magnet is connected with iron plate magnetism, the top of shell is close to and touches wane axis of rotation one end and digs and be equipped with flexible groove, the inside in flexible groove is pegged graft and is had the transfer line, the transfer line extends to inside the shell, the shell is close to the one end fixedly connected with public wiring board of electro-magnet, the shell is kept away from the one end difference fixedly connected with normal close wiring board and the normally open wiring board of electro-magnet, be equipped with conducting rod and conductive contact between public wiring board and the normally closed wiring board, the normally open wiring board.

As a preferred technical scheme of the invention, a sliding groove is drilled at one end of the touch rocker close to the iron block, the sliding groove is connected with an i-shaped sliding block in a sliding manner, the bottom of the i-shaped sliding block is rotatably connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a second spring and an extrusion rod, the extrusion rod is positioned inside the second spring and has a length half that of the second spring, the bottom of the second spring is fixedly connected with a switch, and the switch is electrically connected with the electromagnet.

According to a preferable technical scheme, a telescopic groove is formed in the position, relative to the transmission rod, of the shell, a limiting plate is fixedly connected to one end, located inside the telescopic groove, of the transmission rod, a first spring is fixedly connected between the bottom of the limiting plate and the bottom of the telescopic groove, a second sliding block is arranged at one end, located inside the shell, of the transmission rod, the second sliding block is connected with the conducting rod in a sliding mode, the transmission rod is connected with the second sliding block in a rotating mode, and the second sliding block is made of insulating materials.

As a preferable technical scheme of the invention, the conducting rod is rotationally connected with a public wiring board, one ends of the normally closed wiring board and the normally open wiring board, which are positioned in the shell, are fixedly connected with U-shaped connecting sheets, the concave surfaces of the two U-shaped connecting sheets are opposite, and the conducting contact is positioned between the two U-shaped connecting sheets.

As a preferred technical scheme of the invention, the conductive contact is rotationally connected with the conductive rod, two ends of the conductive contact are arc-shaped which are matched with the U-shaped connecting sheet, and the conductive contact at the lower end is fixedly connected with the balancing weight.

As a preferable technical scheme of the invention, the attraction force of the electromagnet is smaller than the sum of the thrust of the first spring and the thrust of the second spring.

The invention has the beneficial effects that: the device is provided with the electromagnet and the iron block at the touch rocker of the switch, when the touch switch is pressed downwards, the extrusion rod at the bottom of the connecting rod is contacted with the switch, so that the electromagnet downwards adsorbs the iron block, the iron block is adsorbed by the electromagnet, the force required for pressing the touch rocker is reduced, and the unstable circuit connection caused by insufficient extrusion force is avoided;

the U-shaped connecting sheets are arranged at the two wiring boards in the microswitch, and the upper end and the lower end of the conductive contact are also arc-shaped, so that the contact area of the guide sheets is increased when a circuit is connected, and the short circuit caused by unsmooth current flow is avoided;

conductive contact is connected for rotating with the conducting rod, and conductive contact's lower extreme is equipped with the balancing weight, make conductive contact be in the state of erectting from top to bottom all the time, when touching the wane and not receiving external force extrusion, spring pulling transfer line lifting, make normally open the wiring board be connected with public wiring board, when touching the wane and receiving the extrusion, not only can drive the connecting rod and descend, can also promote the slider decline No. two, make conductive contact descend and normally close the U-shaped connection piece contact of wiring board, realize the conversion of circuit.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic view showing a coupling structure of the extruding rod according to the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of the present invention;

FIG. 4 is a schematic view of the connection structure of the I-shaped slider of the present invention;

fig. 5 is a schematic view of an enlarged connection structure at B of the present invention.

In the figure: 1. a housing; 2. touching the rocker; 3. an iron block; 4. an electromagnet; 5. a telescopic groove; 6. a transmission rod; 7. a limiting plate; 8. a first spring; 9. an I-shaped sliding block; 10. a chute; 11. a connecting rod; 12. an extrusion stem; 13. a second spring; 14. a switch; 15. a common wiring board; 16. a normally closed terminal block; 17. a normally open terminal block; 18. a conductive rod; 19. a second sliding block; 20. a U-shaped connecting sheet; 21. a conductive contact; 22. and a balancing weight.

The specific implementation mode is as follows:

example 1

As shown in fig. 1-2 and fig. 4, the following technical solutions are adopted in the present embodiment: a contact connection auxiliary structure for a micro switch comprises a shell 1, wherein one end of the top of the shell 1 is rotatably connected with a touch rocker 2, one end, far away from a rotating shaft, of the touch rocker 2 is fixedly connected with an iron block 3, one end, close to the iron block 3, of the top of the shell 1 is fixedly connected with an electromagnet 4, the electromagnet 4 is magnetically connected with the iron block 3, the electromagnet 4 adsorbs the iron block 3, the force required for pressing the touch rocker 2 is reduced, and unstable circuit connection caused by insufficient extrusion force is avoided, wherein one end, close to the iron block 3, of the touch rocker 2 is provided with a chute 10 in a chiseling mode, the chute 10 is slidably connected with an I-shaped sliding block 9, the bottom of the I-shaped sliding block 9 is rotatably connected with a connecting rod 11, the bottom of the connecting rod 11 is fixedly connected with a second spring 13 and an extrusion rod 12, the extrusion rod 12 is located inside the second spring 13 and has a length half of the second spring 13, the bottom of the second spring 13 is fixedly connected with a switch 14, the switch 14 is electrically connected with the electromagnet 4, so that the trigger rocker 2 is extruded and descended, the switch 14 can be turned on through the transmission of the connecting rod 11 and the extrusion rod 12, and the electromagnet 4 can be turned on;

the attraction of the electromagnet 4 is smaller than the sum of the thrust of the first spring 8 and the thrust of the second spring 13, the electromagnet 4 adsorbs the iron block 3, the force required when the rocker 2 is touched by pressing is reduced, and the phenomenon that circuit connection is unstable due to insufficient extrusion pressure is avoided.

Press the one end that touches the wane 2 and have iron plate 3, the end that touches wane 2 descends, drive transfer line 6 and connecting rod 11 decline, when connecting rod 11 descends, and touch the angle between the stick-up pole 2 and change through rotating, and the slip of the relative tie point position through worker shape slider 9 changes, make connecting rod 11 can be straight up straight down, the stripper bar 12 of connecting rod 11 bottom supports on switch 14 along with the decline of connecting rod 11, open electro-magnet 4, 4 circular telegrams of electro-magnet produce suction with iron plate 3 pulling down, adsorb iron plate 3 through electro-magnet 4, reduce the suppression and touch the required power of wane 2, avoid because the extrusion power degree can not lead to the circuit connection unstability enough.

Example 2

As shown in fig. 1 and 3, the following technical solutions are adopted in the present embodiment:

a telescopic groove 5 is drilled at one end of the top of the shell 1, which is close to the rotating shaft of the touch rocker 2, a transmission rod 6 is inserted into the telescopic groove 5, and the transmission rod 6 extends into the shell 1; wherein, the position excavation of 1 relative transfer line 6 of shell is equipped with flexible groove 5, transfer line 6 is located the inside one end fixedly connected with limiting plate 7 of flexible groove 5, a fixedly connected with spring 8 between the bottom of limiting plate 7 and the bottom of flexible groove 5, transfer line 6 is located the inside one end of shell 1 and is equipped with No. two sliders 19, No. two sliders 19 and conducting rod 18 sliding connection, transfer line 6 rotates with No. two sliders 19 to be connected, No. two sliders 19 are made for insulating material, drive No. two sliders 19 when transfer line 6 receives the extrusion and descend, through No. two sliders 19's rotation and slip, adjust the position of transfer line 6 and conducting rod 18's access point.

When the rocker 2 is touched to be pressed, the transmission rod 6 below the rocker is pushed to descend, and the transmission rod can drive the conductive rod 18 to rotate on the public wiring board 15 through the pulling of the second sliding block 19 at the bottom, so that the conductive contact 21 can be driven to switch back and forth between the two U-shaped connecting sheets 20, and the purpose of switching circuits is achieved.

Example 3

As shown in fig. 1 and 5, the following technical solutions are adopted in the present embodiment: the utility model discloses a novel electric power generation device, including shell 1, electro-magnet 4, one end fixedly connected with public wiring board 15 that shell 1 is close to electro-magnet 4, shell 1 keeps away from electro-magnet 4's one end difference fixedly connected with normally closed wiring board 16 and normally open wiring board 17, be equipped with conducting rod 18 and conductive contact 21 between public wiring board 15 and normally closed wiring board 16, the normally open wiring board 17, wherein, conducting rod 18 rotates with public wiring board 15 to be connected, normally closed wiring board 16 and normally open wiring board 17 are located the equal fixedly connected with U-shaped connection piece 20 of the inside one end of shell 1, two the concave surface of U-shaped connection piece 20 is relative, conductive contact 21 is located between two U-shaped connection pieces 20.

The conductive contact 21 is rotatably connected with the conductive rod 18, the two ends of the conductive contact 21 are arc-shaped and matched with the U-shaped connecting sheet 20, the contact area of the two conductive sheets is increased when the two conductive sheets are in contact, poor conductive effect is avoided, and the conductive contact 21 at the lower end is fixedly connected with the balancing weight 22, so that the conductive contact is always in a vertical state.

The conductive contact 21 is connected with the conductive rod 18 in a rotating mode, the lower end of the conductive contact 21 is provided with the balancing weight 22, the conductive contact 21 is always in a vertical state, when the touch rocker 2 is not extruded by external force, the first spring 8 pulls the transmission rod 6 to lift, the normally open wiring board 17 is connected with the public wiring board 15, when the touch rocker 2 is extruded, the connecting rod 11 can be driven to descend, the second sliding block 19 can be pushed to descend, the conductive contact 21 descends to be in contact with the U-shaped connecting sheet 20 of the normally closed wiring board 16, and circuit conversion is achieved.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. The contact connection auxiliary structure for the micro switch is characterized by comprising a shell (1), wherein one end of the top of the shell (1) is rotatably connected with a touch rocker (2), one end, far away from a rotating shaft, of the touch rocker (2) is fixedly connected with an iron block (3), one end, close to the iron block (3), of the top of the shell (1) is fixedly connected with an electromagnet (4), the electromagnet (4) is magnetically connected with the iron block (3), one end, close to the rotating shaft of the touch rocker (2), of the top of the shell (1) is provided with a telescopic groove (5), a transmission rod (6) is inserted into the telescopic groove (5), the transmission rod (6) extends into the shell (1), one end, close to the electromagnet (4), of the shell (1) is fixedly connected with a public wiring board (15), one end, far away from the electromagnet (4), of the shell (1) is respectively and fixedly connected with a normally closed wiring board (16) and a normally open wiring board (17), and a conductive rod (18) and a conductive contact (21) are arranged between the public wiring board (15) and the normally closed wiring board (16) and the normally open wiring board (17).

2. A contact-connection assisting structure for a micro-switch according to claim 1, wherein: touch one end that wane (2) are close to iron plate (3) and cut and be equipped with spout (10), spout (10) sliding connection has worker shape slider (9), the bottom of worker shape slider (9) is rotated and is connected with connecting rod (11), No. two springs of bottom fixedly connected with (13) and stripper bar (12) of connecting rod (11), stripper bar (12) are located the inside of No. two springs (13) and length is half of No. two springs (13), the bottom fixedly connected with switch (14) of No. two springs (13), switch (14) and electro-magnet (4) electric connection.

3. A contact-connection assisting structure for a micro-switch according to claim 1, wherein: shell (1) is cut in the position of transfer line (6) relatively and is equipped with flexible groove (5), transfer line (6) are located flexible groove (5) inside one end fixedly connected with limiting plate (7), spring (8) of fixedly connected with between the bottom of limiting plate (7) and the bottom of flexible groove (5), transfer line (6) are located shell (1) inside one end and are equipped with No. two slider (19), No. two slider (19) and conducting rod (18) sliding connection, transfer line (6) rotate with No. two slider (19) and are connected, No. two slider (19) make for insulating material.

4. A contact-connection assisting structure for a micro-switch according to claim 1, wherein: the conductive rod (18) is rotatably connected with the public wiring board (15), the normally closed wiring board (16) and the normally open wiring board (17) are located at one end inside the shell (1), the U-shaped connecting pieces (20) are fixedly connected to one ends of the normally closed wiring board and the normally open wiring board, the concave surfaces of the U-shaped connecting pieces (20) are opposite, and the conductive contact (21) is located between the two U-shaped connecting pieces (20).

5. The contact-connection assisting structure for a microswitch according to claim 4, wherein: the conductive contact (21) is rotatably connected with the conductive rod (18), the two ends of the conductive contact (21) are arc-shaped and matched with the U-shaped connecting sheet (20), and the conductive contact (21) at the lower end is fixedly connected with a balancing weight (22).

6. A contact-connection assisting structure for a micro-switch according to claim 1, wherein: the suction force of the electromagnet (4) is smaller than the sum of the thrust of the first spring (8) and the thrust of the second spring (13).