CN212411854U

CN212411854U - Direct current brushless signal control switch

Info

Publication number: CN212411854U
Application number: CN202021529514.3U
Authority: CN
Inventors: 吴世清
Original assignee: Yueqing Huiyang Electromechanical Co ltd
Current assignee: Yueqing Huiyang Electromechanical Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-01-26
Anticipated expiration: 2030-07-29

Abstract

The utility model provides a brushless signal control switch of direct current, includes inside hollow switch shell, circuit board, switch module, the incoming end has been inlayed on the circuit board, connects the exit, switch module includes locating part, return spring, operation end, with locating part complex lug, return spring one end with switch shell inside wall fixed connection and the other end and locating part one side fixed connection, operation end and locating part opposite side fixed connection just expose outside switch shell through the mounting hole portion, it has spacing cooperation district to open on the locating part, the lug swing in spacing cooperation district and with the incoming end with connect the exit cooperation, the lug includes slidable and incoming end butt complex access head, can with set up driven face contact complex driven head, detachable and the conflict complex contact of exit in locating spacing cooperation district. The design has the advantages of simple connection mode, difficult dust accumulation between the wiring ends and long service life.

Description

Direct current brushless signal control switch

Technical Field

The utility model relates to a control switch field, especially a direct current brushless signal control switch.

Background

The existing switch mostly adopts the sliding friction between the wiring piece and the two wiring terminals to realize the on-off of the circuit between the wiring piece and the two wiring terminals, the wiring of the mode is stable and is not easy to make mistakes, but has a great problem, because the existing switch is required to be in a working state for a long time, the switching of the circuit state of the switch needs to be frequently carried out for many times, so that the sliding friction between the wiring piece and the two wiring terminals inevitably generates metal dust particles in the long-time switching process for many times, under the working condition of long-time and many-time use, the metal dust particles are possibly scattered around the wiring terminals, the metal dust particles are possibly caused to be directly and electrically communicated with the two wiring terminals after being accumulated for a long time, and the problem that the whole switch is difficult to overhaul after being used for a long time is easily caused, the two terminals are also prone to failure and damage after electrical communication, and can even cause personal harm to operators.

Disclosure of Invention

The utility model aims at providing a switch-on mode is simple, difficult laying dust, long service life's direct current brushless signal control switch between the wiring end.

In order to solve the technical problem, the utility model discloses a following technical scheme: a brushless direct-current signal control switch comprises a switch shell, a circuit board and a switch assembly, wherein the switch shell is hollow inside, the circuit board is fixedly arranged at the bottom in the switch shell, the switch assembly is positioned in the switch shell and is partially exposed out of the switch shell, at least one access end for connecting an access circuit and at least one access end for connecting an access circuit are embedded on the circuit board, the switch assembly comprises a limiting part, a return spring, an operating end and a wiring piece, the limiting part is arranged in the switch shell and is positioned above the circuit board, the wiring piece is matched with the limiting part, one end of the return spring is fixedly connected with the inner side wall of the switch shell, the other end of the return spring is fixedly connected with one side of the limiting part, the operating end is fixedly connected with the other side of the limiting part and is exposed out of the switch shell through a mounting hole part, a limiting matching area, the wiring piece comprises an access head which is in butt fit with the access end in a sliding mode, a driven head which is in contact fit with a driven surface arranged in the limit fit area, and a contact which is in butt fit with the output end in a separable mode.

Furthermore, connect the exit end both ends and still have the metal dust granule that supplies the friction to produce and amass the remaining district, the locating part includes a plurality of spacing cooperation districts, be equipped with a lug in every spacing cooperation district, a set of incoming end and connect the exit end top to have two lugs to carry out switch-on and disconnection of switching circuit simultaneously at least.

Furthermore, the lug plate further comprises a connecting portion connected with the connecting head, the driven head and the contact, a containing hole for containing the tension spring is further formed in the position, corresponding to the top of the connecting portion, in the limiting piece, one end of the tension spring is fixedly connected with the top of the containing hole, and the other end of the tension spring is fixedly connected with the top of the connecting portion.

Furthermore, a spring mounting hole is formed in the position of the return spring on the limiting part, one end of the return spring is fixedly connected with the inner side wall of the switch shell, and the other end of the return spring extends into the spring mounting hole to reset the limiting part.

Furthermore, the top of the limiting part is also provided with a sliding groove with an inverted trapezoidal longitudinal section, the top of the switch shell is also provided with a sliding rail with an inverted trapezoidal longitudinal section matched with the sliding groove, and the limiting part can perform reciprocating motion in the switch shell through the matching of the sliding rail and the sliding groove.

The utility model has the advantages that: the utility model controls the up-and-down swing of the lug contact through the reciprocating motion of the limiting part in the switch shell, realizes the contact and the separation of the contact and the receiving end and further completes the connection and the disconnection of the switch circuit, compared with the prior switch which completely performs the connection and the disconnection of the switch circuit through the sliding friction, the switch of the utility model performs the connection and the disconnection of the switch circuit through the point contact type contact between the contact and the receiving end, reduces the sliding friction between the wiring piece and two wiring ends in the prior sliding switch, further greatly reduces the generation of metal dust particles, avoids a large amount of metal dust particles generated by the sliding friction from being accumulated between the two wiring ends, leads the metal dust particles to directly connect the two wiring ends after the current is connected, further causes the damage of the switch circuit and circuit faults which are difficult to be maintained, on the other hand, the point contact type connection mode between the contact and the receiving end is simple and is not easy to make, the integral switch has the advantages that the integral switch is simple in structure, few in parts and low in production and application cost, the limiting part and the lug plate are matched to enable the integral switch to be compact in structure, the space in the integral switch shell is fully utilized, and the miniaturization design of the integral switch is convenient to achieve.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a dc brushless signal control switch.

Fig. 2 is a schematic diagram of the internal structure of the switch housing after the dc brushless signal control switch is turned off.

Fig. 3 is a schematic diagram of the internal structure of the switch housing after the dc brushless signal control switch is turned on.

Fig. 4 is a schematic view of the overall structure of the switch assembly.

Fig. 5 is an exploded view of the switch assembly.

Fig. 6 is a schematic view of a state in which the contact and the circuit board are separated.

FIG. 7 is a schematic view showing a state where the contact is in contact with the circuit board

The part names numbered in the drawings are as follows: 1. a switch housing; 2. a circuit board; 2.1, an access end; 2.2, connecting an outlet end; 3. a switch assembly; 3.1, a limiting piece; 3.2, a return spring; 3.3, an operation end; 3.4, a lug plate; 3.41, an access head; 3.42, a driven head; 3.43, contact; 3.44, a connecting part; 3.5, limiting a matching area; 3.6, a driven surface; 3.7, a tension spring.

Detailed Description

In order to make the utility model realize the technical means, innovative features and functions are easy to understand, and the utility model is further explained below.

As shown in fig. 1-7, the technical solution of the dc brushless signal control switch of the present invention comprises a switch housing 1 with a hollow interior, a circuit board 2 fixedly disposed at the bottom of the switch housing 1, and a switch assembly 3 disposed in the switch housing 1 and partially exposed outside the switch housing 1, wherein the circuit board 2 is embedded with at least one connection end 2.1 for connecting to a circuit, and at least one connection end 2.2 for connecting to a circuit, the switch assembly 3 comprises a position-limiting member 3.1 disposed in the switch housing 1 and above the circuit board 2, a return spring 3.2, an operation end 3.3, and a connection piece 3.4 engaged with the position-limiting member 3.1, one end of the return spring 3.2 is fixedly connected to the inner side wall of the switch housing 1 and the other end is fixedly connected to one side of the position-limiting member 3.1, the operation end 3.3 is fixedly connected to the other side of the position-limiting member 3.1 and is exposed outside the switch housing, the limiting piece 3.1 is provided with a limiting matching area 3.5, the lug plate 3.4 swings in the limiting matching area 3.5 and is matched with the access end 2.1 and the access end 2.2, the lug plate 3.4 comprises an access head 3.41 which is slidably matched with the access end 2.1 in an abutting mode, a driven head 3.42 which is matched with a driven surface 3.6 arranged in the limiting matching area 3.5 in a contacting mode, and a contact 3.43 which is detachably matched with the access end 2.2 in an abutting mode, through the matching of the operation end 3.3 and the return spring 3.2, the limiting piece 3.1 moves towards the direction of the access end 2.2 above the circuit board 2, the limiting piece 3.1 drives the contact 3.43 to swing downwards and is contacted with the access end 2.2 by taking the access head 3.41 which slides on the access end 2.1 as a fulcrum, the switch circuit board is further communicated, after the operation end 3.3.3 is loosened, the limiting piece 3.1 pushes the access end 3.2 to move towards the direction of the driven head 3.6 under the action of the return spring 3.2, the limiting member 3.1 takes the access head 3.41 sliding on the access end 2.1 as a fulcrum to drive the contact 3.43 to lift upwards and separate from the access end 2.2, thereby realizing the disconnection of the switch circuit.

In a preferred embodiment of the present invention, because the contact 3.43 and the in-process of connecing out end 2.2 touching and disconnection still have a small amount of contact 3.43 and connect the friction between out end 2.2, probably still there is the production of a minute quantity of metal dust granule, so in order to reduce the metal dust granule at incoming end 2.1 and connect the long-pending stagnation between out end 2.2, avoid the metal dust granule to directly switch on incoming end 2.1 and connect out end 2.2, connect out end 2.2 both ends and still have the long-pending district of keeping somewhere that supplies the metal dust granule that the friction produced, of course, still can carry out the setting of keeping somewhere the district at incoming end 2.1 to reach better effect. In practical application, the terminal 3.4 may still have a clamping element or other faults, which may cause that the switch cannot be normally turned on or off, so that in order to ensure that a group of the incoming end 2.1 and the outgoing end 2.2 can always normally turn on or off the switch, the limiting member 3.1 includes a plurality of limiting matching areas 3.5, one terminal 3.4 is arranged in each limiting matching area 3.5, and at least two terminals 3.4 above a group of the incoming end 2.1 and the outgoing end 2.2 are simultaneously turned on or off the switch circuit.

In an embodiment of the present invention, the connection piece 3.4 further includes a connection portion 3.44 connecting the access head 3.41, the driven head 3.42, and the contact 3.43, a containing hole for containing the tension spring 3.7 is further opened in the position corresponding to the top of the connection portion 3.44 in the position limiting member 3.1, one end of the tension spring 3.7 is fixedly connected to the top of the containing hole, and the other end is fixedly connected to the top of the connection portion 3.44, so that the contact 3.43 can move more accurately in the process of connecting and disconnecting, the contact 3.43 can be contacted with the output end 2.2 after the travel of the position limiting member 3.1 is in place, thereby avoiding the accident after the switch is connected due to the misoperation in the actual application process, which may cause serious injury even to the operator, on the other hand, in the process of returning the position limiting member 3.1, the tension spring 3.7 can immediately drive the contact 3.43 to lift upwards, and then the connection piece 3.4 can be reset rapidly, and the movement, the problem of switch disconnection lag caused by slow reset action of the lug 3.4 due to the fact that the problem possibly occurs in the matching between the lug 3.4 and the limiting part 3.1 after long-time work is avoided, the switch can be timely and rapidly disconnected, the possibility of safety accidents is reduced, and the personal safety hidden danger is reduced.

In an embodiment of the present invention, in order to improve the stability and accuracy of the reciprocating motion of the position-limiting element 3.1 and avoid the shaking generated during the motion process, a spring mounting hole is further opened at the position of the return spring 3.2 on the position-limiting element 3.1, one end of the return spring 3.2 is fixedly connected with the inner side wall of the switch housing 1, and the other end extends into the spring mounting hole to reset the position-limiting element 3.1, a chute with an inverted trapezoidal longitudinal section is further opened at the top of the position-limiting element 3.1, a slide rail with an inverted trapezoidal longitudinal section matched with the chute is further arranged at the top of the switch housing 1, the reciprocating motion of the position-limiting element 3.1 in the switch housing 1 is performed through the matching of the slide rail and the chute, of course, the design of the shapes of the slide rail and the chute according to the actual conditions can be performed, for example, the slide rail and the chute with a basin-shaped longitudinal section, so, the design directly avoids the limit part 3.1 from shaking to cause instability in the switch on-off process due to the self-shaking possibly generated in the reciprocating motion process, improves the operation performance, directly reduces the possibility that the switch is likely to break down after long-time work, prolongs the service life of the product and reduces the use cost.

Although the present invention has been described with reference to the specific embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A DC brushless signal control switch is characterized in that: comprises a switch shell (1) with a hollow inner part, a circuit board (2) fixedly arranged at the bottom in the switch shell (1), and a switch component (3) which is positioned in the switch shell (1) and partially exposed out of the switch shell (1), wherein the circuit board (2) is embedded with at least one access end (2.1) for connecting with an access circuit and at least one access end (2.2) for connecting with an access circuit, the switch component (3) comprises a limiting part (3.1) arranged in the switch shell (1) and positioned above the circuit board (2), a return spring (3.2), an operation end (3.3) and a wiring sheet (3.4) matched with the limiting part (3.1), one end of the return spring (3.2) is fixedly connected with the inner side wall of the switch shell (1) and the other end is fixedly connected with one side of the limiting part (3.1), the operation end (3.3) is fixedly connected with the other side of the limiting part (3.1) and is exposed out of the switch shell (1) through an, the limiting piece (3.1) is provided with a limiting matching area (3.5), the lug plate (3.4) swings in the limiting matching area (3.5) and is matched with the access end (2.1) and the output end (2.2), the lug plate (3.4) comprises an access head (3.41) which is slidably matched with the access end (2.1) in an abutting mode, a driven head (3.42) which is matched with a driven surface (3.6) arranged in the limiting matching area (3.5) in a contacting mode, and a contact (3.43) which is detachably matched with the output end (2.2) in an abutting mode, the limiting piece (3.1) moves towards the output end (2.2) direction above the circuit board (2) by the matching of the operation end (3.3) and a return spring (3.2), the limiting piece (3.1) drives the contact (3.43) to swing downwards by taking the access head (3.41) which slides on the access end (2.1) as a fulcrum, and further drives the contact end (2.43) to swing downwards to be connected with a switch, and a switch is connected with the output end (2.2) and a circuit, after the operation end (3.3) is loosened, under the action of a return spring (3.2), the limiting piece (3.1) moves towards the access end (2.1) above the circuit board (2), the driven surface (3.6) assists to push the driven head (3.42) to return, the limiting piece (3.1) takes the access head (3.41) sliding on the access end (2.1) as a fulcrum to drive the contact (3.43) to lift upwards and separate from the access end (2.2), and then the switching-off of the switching circuit is realized.

2. The dc brushless signal control switch of claim 1, wherein: connect out end (2.2) both ends still to have the metal dust granule that supplies the friction to produce and stagnate the district of keeping somewhere, locating part (3.1) are equipped with one lug (3.4) including a plurality of spacing cooperation districts (3.5) in every spacing cooperation district (3.5), and a set of incoming end (2.1) and connect out end (2.2) top have two lug (3.4) at least to carry out switch-on and disconnection of on-off circuit simultaneously.

3. A dc brushless signal control switch according to claim 1 or 2, wherein: lug (3.4) are still including connecting access head (3.41), driven head (3.42), contact (3.43) three connecting portion (3.44), it has the holding hole that supplies extension spring (3.7) holding still to correspond connecting portion (3.44) top position in locating part (3.1), extension spring (3.7) one end and holding downthehole top fixed connection, the other end and connecting portion (3.44) top fixed connection.

4. A dc brushless signal control switch according to claim 1 or 2, wherein: the position of the return spring (3.2) on the limiting part (3.1) is also provided with a spring mounting hole, one end of the return spring (3.2) is fixedly connected with the inner side wall of the switch shell (1) and the other end of the return spring extends into the spring mounting hole to reset the limiting part (3.1).

5. A dc brushless signal control switch according to claim 3, wherein: the position of the return spring (3.2) on the limiting part (3.1) is also provided with a spring mounting hole, one end of the return spring (3.2) is fixedly connected with the inner side wall of the switch shell (1) and the other end of the return spring extends into the spring mounting hole to reset the limiting part (3.1).

6. A DC brushless signal control switch according to claim 1, 2 or 5, wherein: the top of the limiting part (3.1) is also provided with a sliding groove with an inverted trapezoidal longitudinal section, the top of the switch shell (1) is also provided with a sliding rail with an inverted trapezoidal longitudinal section matched with the sliding groove, and the limiting part (3.1) can perform reciprocating motion in the switch shell (1) through the matching of the sliding rail and the sliding groove.

7. A dc brushless signal control switch according to claim 3, wherein: the top of the limiting part (3.1) is also provided with a sliding groove with an inverted trapezoidal longitudinal section, the top of the switch shell (1) is also provided with a sliding rail with an inverted trapezoidal longitudinal section matched with the sliding groove, and the limiting part (3.1) can perform reciprocating motion in the switch shell (1) through the matching of the sliding rail and the sliding groove.

8. The dc brushless signal control switch of claim 4, wherein: the top of the limiting part (3.1) is also provided with a sliding groove with an inverted trapezoidal longitudinal section, the top of the switch shell (1) is also provided with a sliding rail with an inverted trapezoidal longitudinal section matched with the sliding groove, and the limiting part (3.1) can perform reciprocating motion in the switch shell (1) through the matching of the sliding rail and the sliding groove.