CN215731404U - Heavy current switch - Google Patents

Abstract

The utility model relates to the technical field of switches, in particular to a high-current switch which comprises a shell, a switch button arranged in the shell, a pushing module arranged in the shell and positioned at the bottom of the switch button, and a contact module arranged in the shell and opposite to the pushing module; the contact module comprises a PCB (printed circuit board), a first conductive pin, a driving contact, a conducting contact and a second conductive pin, wherein the driving contact is arranged at the bottom of the PCB, the conducting contact is arranged in the shell and is opposite to the driving contact, and the second conductive pin is connected with the conducting contact. The utility model solves the problems of simple structure, weak current bearing capacity, large potential safety hazard and the like of the traditional switch.

Description

Heavy current switch

Technical Field

The utility model relates to the technical field of switches, in particular to a high-current switch.

Background

The button switch is also called a control button (abbreviated as a button), and is a low-voltage electrical appliance which is manual and can be reset automatically generally. Buttons are typically used in electrical circuits to issue start or stop commands to control the switching on and off of current to the coils of electrical appliances such as electromagnetic starters, contactors, relays, and the like.

A push-button switch is an electrical appliance that is depressed, i.e., actuated, released, i.e., reset, to switch on and off a low current circuit. The circuit is generally used in a control circuit with the AC/DC voltage of 440V or below and the current of less than 5A, and can be used in an interconnection circuit without directly operating a main circuit. The button switch is a switch which utilizes a button to push a transmission mechanism, enables a movable contact and a static contact to be pressed on or off and realizes circuit switching.

The button switch is a master control electrical appliance with simple structure and wide application. In an electric automatic control circuit, it is used to manually send out control signals to control a contactor, a relay, an electromagnetic starter, and the like. However, the traditional switch has a simple structure, is weak in current bearing capacity and has large potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a high-current switch aiming at the problems of the conventional technology, the high-current switch has a reasonable structural design, strong current bearing capacity, high safety performance and long service life.

A high-current switch comprises a shell, a switch button arranged in the shell, a pushing module arranged in the shell and positioned at the bottom of the switch button, and a contact module arranged in the shell and opposite to the pushing module; the contact module comprises a PCB (printed circuit board), a first conductive pin, a driving contact, a conducting contact and a second conductive pin, wherein the driving contact is arranged at the bottom of the PCB, the conducting contact is arranged in the shell and is opposite to the driving contact, and the second conductive pin is connected with the conducting contact.

Further, in the above technical solution, the housing includes a fixed outer sleeve, an inner housing installed in the fixed outer sleeve, and a fixing nut installed on an outer ring of the fixed outer sleeve, the outer ring of the fixed outer sleeve is provided with a fixed thread, and the fixing nut is installed at the fixed thread.

Further, in the above technical solution, the switch button includes a movable seat and a pressing cap installed in the movable seat, and the movable seat is installed in the fixed outer sleeve.

Furthermore, in the above technical scheme, the pushing module includes a pushing seat and an elastic member, the elastic member is sleeved on the outer ring of the movable seat and abutted against the inner shell, and the pushing seat is abutted against the movable seat.

Furthermore, in the above technical scheme, the push module includes a guide piece and a self-locking piece installed on the push seat, and a limiting piece installed on the push seat and opposite to the self-locking piece, the inner shell is provided with a guide groove matched with the guide piece, and the self-locking piece is provided with a self-locking groove.

Further, in the above technical scheme, still include the auto-lock module, the auto-lock module install in the casing, the auto-lock module includes fixing base and guide bar, the fixing base is seted up and is used for holding the holding chamber of guide bar.

Further, in the above technical solution, the guide rod includes a fixing portion, and an extending portion and a self-locking portion connected to the fixing portion, and the fixing portion is disposed in the accommodating chamber; when the switch key pushes the pushing module to move downwards, the self-locking part and the limiting part on the pushing seat move downwards, and the self-locking part is located in the self-locking groove.

Further, in the above technical solution, the self-locking module includes a supporting seat, the supporting seat is mounted on the fixing seat, and the supporting seat is provided with a through hole for the extending portion to pass through.

Further, in the above technical scheme, the fixing base external diameter is provided with the joint spare, interior casing seted up with joint spare complex joint groove.

Further, in the above technical solution, the number of the first conductive pins is four, and the number of the second conductive pins is two.

The utility model has the following beneficial effects:

compared with a traditional switch, the high-current switch provided by the utility model is reasonable in structural design, strong in current bearing capacity, high in safety performance and long in service life, the shell is arranged for fixed installation and use of the whole structure, the switch key and the pushing module are arranged in the shell, the pushing module is arranged at the bottom of the switch key, the contact module is arranged in the shell and matched with the pushing module for use, the first conductive pin is always communicated with a circuit in a normal state, in the working process, a worker manually presses the switch key and pushes the pushing module to move downwards, and at the moment, the driving contact at the bottom of the PCB is communicated with the conducting contact, so that the second conductive pin is electrified, an electrified circuit is added, the safety performance is high, and the whole structure is reasonable in design.

Drawings

Fig. 1 is a schematic perspective view of a high current switch according to the present invention;

fig. 2 is a schematic perspective view of the high current switch of fig. 1 from another perspective;

fig. 3 is a cross-sectional view of the high current switch of fig. 1;

fig. 4 is a schematic combination diagram of a contact module and a self-locking module of the high-current switch of fig. 1;

fig. 5 is a schematic perspective view of the high current switch of fig. 1;

fig. 6 is a schematic structural diagram of a fixing base of the high-current switch shown in fig. 4.

Description of reference numerals:

the electronic device comprises a shell 10, a fixed outer sleeve 11, a fixed thread 11a, an inner shell 12, a guide groove 12a, a clamping groove 12b, a fixed nut 13, a switch button 20, a movable seat 21, a press cover 22, a push module 30, a push seat 31, an elastic piece 32, a guide piece 33, a self-locking piece 34, a limiting piece 35, a self-locking module 40, a fixed seat 41, a containing cavity 41a, a clamping piece 41b, a guide rod 42, a fixed part 42a, an extending part 42b, a self-locking part 42c, a supporting seat 43, a through hole 43a, a contact module 50, a PCB 51, a first conductive pin 52, a driving contact 53, a conductive contact 54 and a second conductive pin 55.

Detailed Description

In order that the utility model may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 6, a high current switch according to an embodiment of the present invention has a reasonable structural design, a strong current carrying capacity, a high safety performance, and a long service life.

In this embodiment, the high current switch includes a housing 10, a switch button 20 installed in the housing 10, a push module 30 installed in the housing 10 and located at the bottom of the switch button 20, and a contact module 50 installed in the housing 10 and opposite to the push module 30; the shell 10 is arranged for fixed installation of the whole structure, the switch key 20 and the pushing module 30 are both arranged in the shell 10, the pushing module 30 is located at the bottom of the switch key 20, and the contact module 50 is located in the shell 10 and is matched with the pushing module 30 for use.

The shell 10 comprises a fixed outer sleeve 11, an inner shell 12 arranged in the fixed outer sleeve 11 and a fixed nut 13 arranged on the outer ring of the fixed outer sleeve 11, wherein the outer ring of the fixed outer sleeve 11 is provided with a fixed thread 11a, and the fixed nut 13 is arranged at the fixed thread 11 a; in this embodiment, the fixed thread 11a that fixed overcoat 11 outer lane set up is used for with exterior structure threaded connection, and the connection effect is good, conveniently fixes.

The switch button 20 comprises a movable seat 21 and a pressing cap 22 arranged in the movable seat 21, and the movable seat 21 is arranged in the fixed outer sleeve 11; in this embodiment, the pressing cap 22 is installed in the movable seat 21, so that the pressing cap 22 can be operated conveniently, and the operation effect is good.

The pushing module 30 includes a pushing seat 31 and an elastic element 32, the elastic element 32 is sleeved on the outer ring of the movable seat 21 and abuts against the inner housing 12, and the pushing seat 31 abuts against the movable seat 21; the pushing module 30 includes a guide 33 and a self-locking piece 34 mounted on the pushing seat 31, and a limiting piece 35 mounted on the pushing seat 31 and opposite to the self-locking piece 34, the inner housing 12 is provided with a guide groove 12a matched with the guide 33, and the self-locking piece 34 is provided with a self-locking groove; in this embodiment, the elastic members 32 are provided for resetting when the switch key 20 is pressed, the resetting effect is good, and the number of the guide members 33 is four, so that the guiding effect is good.

The high-current switch further comprises a self-locking module 40, the self-locking module 40 is installed in the shell 10, the self-locking module 40 comprises a fixed seat 41 and a guide rod 42, and the fixed seat 41 is provided with an accommodating cavity 41a for accommodating the guide rod 42; the guide rod 42 comprises a fixed part 42a, an extending part 42b connected with the fixed part 42a and a self-locking part 42c, and the fixed part 42a is arranged in the accommodating cavity 41 a; in this embodiment, the self-locking member 34, the limiting member 35 and the guide rod 42 are mutually matched to form a self-locking structure, which has a good self-locking effect, specifically, when the switch button 20 pushes the pushing module 30 to move downward, the self-locking member 34 and the limiting member 35 on the pushing seat 31 move downward, so that the self-locking portion 42c is located in the self-locking groove to realize self-locking.

The self-locking module 40 comprises a supporting seat 43, the supporting seat 43 is mounted on the fixed seat 41, and the supporting seat 43 is provided with a through hole 43a for the extending part 42b to pass through; in this embodiment, set up supporting seat 43 and play certain fixed stay effect, the supporting effect is good.

The fixing base 41 external diameter is provided with joint spare 41b, and interior casing 12 is seted up with joint spare 41b complex joint groove 12b, joint spare 41b and joint groove 12b joint, be convenient for installation and dismantlement.

The contact module 50 comprises a PCB 51, a first conductive pin 52, a driving contact 53 mounted at the bottom of the PCB 51, a conducting contact 54 mounted in the housing 10 and opposite to the driving contact 53, and a second conductive pin 55 connected to the conducting contact 54; in this embodiment, the number of the first conductive pins 52 is four, the number of the second conductive pins 55 is two, and in a normal state, the first conductive pins 52 are always communicated with the circuit, when a worker manually presses the switch button 20 and pushes the pushing module 30 to move downwards, the driving contact 53 at the bottom of the PCB 51 is communicated with the conducting contact 54, so that the second conductive pins 55 are electrified, an electrified circuit is added, the safety performance is high, and the overall structure is reasonable in design.

The heavy current switch is reasonable in structural design, strong in current bearing capacity, high in safety performance and long in service life, the shell 10 is arranged for fixed installation and use of the whole structure, the switch key 20 and the pushing module 30 are both arranged in the shell 10, the pushing module 30 is located at the bottom of the switch key 20, the contact module 50 is located in the shell 10 and is matched with the pushing module 30 for use, in a normal state, the first conductive pin 52 is always communicated with a circuit, when a worker manually presses the switch key 20 and pushes the pushing module 30 to move downwards, the driving contact 53 at the bottom of the PCB 51 is communicated with the conducting contact 54, and therefore the second conductive pin 55 is electrified, an electrified circuit is added, safety performance is high, and the whole structural design is reasonable.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A large-current switch is characterized by comprising a shell, a switch button arranged in the shell, a pushing module arranged in the shell and positioned at the bottom of the switch button, and a contact module arranged in the shell and opposite to the pushing module; the contact module comprises a PCB (printed circuit board), a first conductive pin, a driving contact, a conducting contact and a second conductive pin, wherein the driving contact is arranged at the bottom of the PCB, the conducting contact is arranged in the shell and is opposite to the driving contact, and the second conductive pin is connected with the conducting contact.

2. The high current switch of claim 1, wherein the housing comprises a fixed outer casing, an inner housing mounted in the fixed outer casing, and a fixed nut mounted on an outer ring of the fixed outer casing, wherein the outer ring of the fixed outer casing is provided with a fixed thread, and the fixed nut is mounted at the fixed thread.

3. The high current switch of claim 2, wherein said switch button comprises a movable seat and a button cap mounted in said movable seat, said movable seat being mounted in said fixed outer sleeve.

4. The high current switch of claim 3, wherein said pushing module comprises a pushing base and an elastic member, said elastic member is sleeved on said outer ring of said movable base and abuts against said inner housing, and said pushing base abuts against said movable base.

5. The high current switch according to claim 4, wherein the pushing module comprises a guiding element and a self-locking element mounted on the pushing base, and a limiting element mounted on the pushing base and opposite to the self-locking element, the inner housing is provided with a guiding groove matching with the guiding element, and the self-locking element is provided with a self-locking groove.

6. The high current switch of claim 5, further comprising a self-locking module, wherein the self-locking module is mounted in the housing, the self-locking module comprises a fixing seat and a guide rod, and the fixing seat is provided with a receiving cavity for receiving the guide rod.

7. The high current switch of claim 6, wherein the guiding rod comprises a fixing portion, and an extending portion and a self-locking portion connected to the fixing portion, the fixing portion being disposed in the receiving cavity; when the switch key pushes the pushing module to move downwards, the self-locking part and the limiting part on the pushing seat move downwards, and the self-locking part is located in the self-locking groove.

8. The high current switch of claim 7, wherein the self-locking module comprises a support seat, the support seat is mounted on the fixing seat, and the support seat is provided with a through hole for the extension portion to pass through.

9. The high current switch of claim 8, wherein the outer diameter of the fixing base is provided with a clamping member, and the inner housing is provided with a clamping groove matched with the clamping member.

10. The high current switch of claim 1, wherein said first conductive pins are four in number and said second conductive pins are two in number.

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