CN219696379U

CN219696379U - Leakage auxiliary contact of circuit breaker

Info

Publication number: CN219696379U
Application number: CN202320598176.6U
Authority: CN
Inventors: 周维峰; 林凯; 胡广召
Original assignee: WENZHOU AOELEC ELECTRICAL CO Ltd
Current assignee: WENZHOU AOELEC ELECTRICAL CO Ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-09-15
Anticipated expiration: 2033-03-24

Abstract

The utility model relates to an electric leakage auxiliary contact of a circuit breaker, which comprises a shell, a movable contact, a first static contact, a second static contact and a linkage mechanism for driving the movable contact to move and contact with the first static contact or the second static contact, wherein the linkage mechanism comprises a linkage shaft, a rotary table and an elastic piece, the rotary table synchronously rotates with the linkage shaft, the linkage shaft is in square arrangement, square holes are correspondingly formed in the rotary table, a linkage disc and the linkage shaft synchronously rotate through inserting the linkage shaft into the square holes, a clamping groove is formed in the rotary table, the movable contact is clamped in the clamping groove and synchronously moves with the rotary table, the linkage shaft drives the rotary table to rotate when the movable contact contacts with the first static contact, and the movable contact drives the rotary table to rotate and contacts with the second static contact when the movable contact is opened. By adopting the technical scheme, the utility model provides the leakage auxiliary contact of the circuit breaker, a user can know whether the circuit breaker is closed or opened without approaching the circuit breaker, the configuration cost is effectively reduced, and the space occupation is reduced.

Description

Leakage auxiliary contact of circuit breaker

Technical Field

The present disclosure relates to circuit breakers, and more particularly, to an auxiliary leakage contact for a circuit breaker.

Background

The prior Chinese patent with publication number CN113838719A discloses an auxiliary contact and a circuit breaker, which comprises a shell; the device is characterized by further comprising a shell arranged in the shell: the lever group is hinged on the shell, can be rotatably switched between a first working position and a second working position, and is provided with a first touch part and a second touch part; the two groups of wire holders are respectively arranged at two sides of the lever group; each group of wire holders comprises three wire terminals and an elastic piece, one end of the elastic piece is electrically connected with the first wire terminal, and the other end of the elastic piece can be electrically connected with the second wire terminal or the third wire terminal; the first touch part and the second touch part are respectively matched with a first elastic piece of a first group of wire holders and a second elastic piece of a second group of wire holders, and at least one of the first elastic piece and the electrical connection of the corresponding second wire terminal or third wire terminal is configured as follows: the lever group rotates the first touch part which is driven after the working position is switched, presses against the first elastic sheet and is established after deformation; at least one of the electrical connection between the second elastic piece and the corresponding second binding post or the third binding post is configured as follows: the lever group rotates to switch the working position and then the second touch part is driven to press against the second elastic piece to deform and then establish.

The circuit breaker switching-off or switching-on state can be indicated, but the lever group transmission structure is complex, difficult to operate and unstable, and when the circuit breaker is opened or closed, the lever group cannot be well driven to move, so that the elastic sheet is electrically connected with the second wiring terminal or the third wiring terminal.

Disclosure of Invention

The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides the electric leakage auxiliary contact of the circuit breaker, which has the advantages of simple transmission structure and convenient operation, and can better drive the turntable to rotate so as to realize the electrical connection between the elastic sheet and the first static contact or the second static contact.

The technical scheme of the utility model is as follows: the leakage auxiliary contact of the circuit breaker comprises a shell, a movable contact, a first static contact, a second static contact and a linkage mechanism for driving the movable contact to move and contact with the first static contact or the second static contact, wherein the linkage mechanism comprises a linkage shaft, a rotary table and an elastic piece, the rotary table and the elastic piece synchronously rotate with the linkage shaft, the linkage shaft is square, square holes are correspondingly arranged on the rotary table, the square downthehole synchronous rotation that realizes linkage dish and linkage axle of linkage axle insertion, elastic component one end is fixed on the shell, and the other end is connected with the carousel, be equipped with the draw-in groove on the carousel, movable contact piece card establish in the draw-in groove with carousel synchronous motion, during the combined floodgate, the linkage axle drives the carousel and rotates, movable contact piece and first static contact, during the separating brake, the linkage axle drives the carousel and rotates, movable contact piece and second static contact.

According to the technical scheme, the linkage mechanism is adopted to drive the movable contact to move so as to enable the movable contact to be in contact with the first static contact or the second static contact, the linkage shaft is square, the turntable can be driven to rotate better, the movable contact is clamped in the clamping groove of the turntable, so that the movable contact is driven to move, the auxiliary contact is driven to switch through the rotation of the linkage shaft, when a product is disconnected, the movable contact is in contact with the second static contact and separated from the first static contact, when the product is closed, the movable contact is in contact with the first static contact and separated from the second static contact, the auxiliary contact is not provided with a mechanism, the auxiliary contact is driven by the product completely, the reliability of the auxiliary contact is improved, an elastic piece with lighter force is arranged on the turntable, the auxiliary contact is enabled to reduce the influence on the disconnection speed and the strength of the product, an indicating device is arranged outside, the movable contact is displayed through the indicating device when the movable contact is in contact with the first static contact or the second static contact, and thus the product can be in a switch-on state or a switch-off state.

The utility model is further provided with: the shell is provided with a plurality of mounting grooves, and the movable contact, the second static contact and the first static contact are clamped in the corresponding mounting grooves.

By adopting the further arrangement, the static contact and the movable contact are stable in structure, and the circuit is better switched on.

Still further, the present utility model provides: the shell comprises a base and an upper cover, a first positioning column is arranged on the base, a second positioning column is arranged on the rotary table, one end of the elastic piece is sleeved on the first positioning column, the other end of the elastic piece is sleeved on the second positioning column, a jack is arranged on the upper cover corresponding to the position of the first positioning column, the positioning column is inserted into the jack, and a limiting boss for preventing the elastic piece from being separated is arranged at the end part of the second positioning column.

By adopting the further arrangement, the assembly and disassembly are convenient, the replacement of the internal parts is convenient, and the elastic piece can be prevented from being separated from the positioning column by the matching of the jack and the positioning column and the arrangement of the limiting boss

Still further, the present utility model is provided with: two extending columns are arranged on the turntable and are arranged at intervals to form the clamping groove.

By adopting the further arrangement, the movable contact is simple in structure and convenient to operate, the movable contact is prevented from being separated from the turntable, and the movable contact is driven to move better.

Still further, the present utility model is provided with: three binding posts are sequentially arranged on the base, the movable contact piece is arranged by adopting an elastic piece, one end of the elastic piece is electrically connected with the first binding post, the other end of the elastic piece is provided with a movable contact, the movable contact can be alternatively electrically connected with the first static contact piece or the second static contact piece, the first static contact piece is electrically connected with the second binding post, and the second static contact piece is electrically connected with the third binding post.

By adopting the further arrangement, the movable contact is convenient to wire, stable in structure and better in contact with the first static contact or the second static contact.

Drawings

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

FIG. 2 is a schematic diagram of a closing operation according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of the present utility model during opening;

fig. 4 is a schematic diagram of a circuit breaker according to an embodiment of the utility model;

FIG. 5 is a cross-sectional view of an embodiment of the present utility model;

FIG. 6 is a schematic view of a turntable according to an embodiment of the utility model;

FIG. 7 is a schematic view of an assembly port according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a spindle according to an embodiment of the present utility model;

fig. 9 is a schematic view of an upper cover according to an embodiment of the present utility model.

Detailed Description

The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, front, and rear … …) in the description of the present utility model are merely for explaining the relative positional relationship, movement, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. In the description of the present utility model, "a number" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

As shown in fig. 1-9, an electric leakage auxiliary contact of a circuit breaker comprises a shell 1, a movable contact 2, a first static contact 3, a second static contact 4 and a linkage mechanism for driving the movable contact 2 to move and contact with the first static contact 3 or the second static contact 4, wherein the linkage mechanism comprises a linkage shaft 51, a rotary table 52 and an elastic piece 53, the rotary table 52 rotates synchronously with the linkage shaft 51, the elastic piece 53 is arranged by adopting a tension spring, the linkage shaft 51 is square, square holes 521 are correspondingly arranged on the rotary table 52, the linkage shaft 51 is inserted into the square holes 521 to realize synchronous rotation of the linkage disc 52 and the linkage shaft 51, an assembling port 200 is arranged on the circuit breaker 20, a rotating shaft 201 is arranged in the circuit breaker, square holes 202 are also arranged on the rotating shaft 201, the specific structure of the circuit breaker is realized based on the prior art by a person skilled in the art, and therefore, the specific description is not needed, the linkage shaft 51 extends into the circuit breaker from the assembly opening 200 and is clamped in a square hole 202 on the rotating shaft, one end of the elastic piece 53 is fixed on the shell 1, the other end is connected with the rotary table 52, a clamping groove 522 is arranged on the rotary table 52, the movable contact piece 2 is clamped in the clamping groove 522 and moves synchronously with the rotary table 52, in particular, two extending columns 523 are arranged on the rotary table 52, the two extending columns 523 are arranged at intervals to form the clamping groove 522, the structure is simple, the operation is convenient, the movable contact piece 2 is prevented from being separated from the rotary table, the movable contact piece 2 is better driven to move, the linkage shaft 51 drives the rotary table 52 to rotate when in switching on, the movable contact piece 2 is contacted with the first static contact piece 3, the linkage shaft 51 drives the rotary table 52 to rotate when in switching off, the movable contact piece 2 is contacted with the second static contact piece 4, the movable contact piece 2 is driven to move by adopting the linkage mechanism to realize the contact of the movable contact piece 2 and the first static contact piece 3 or the second static contact piece 4, the universal driving shaft 51 is square setting, one end inserts and establishes in the square hole of carousel, the other end extends to in the circuit breaker, be connected with pivot 201, square hole and square shaft's cooperation drive carousel 52 rotation that can be better, transmission structure is simple, and stability is good, because movable contact 2 card is established in the draw-in groove 522 of carousel 52, consequently, drive movable contact 2 motion, the switching of auxiliary contact is driven through the rotation of universal driving shaft 51, when the product disconnection, movable contact 2 and second static contact 4 contact, with first static contact 3 separation, when the product is closed, movable contact 2 and first static contact 3 contact, with second static contact 4 separation, auxiliary contact itself does not have the mechanism, the product drives completely, the reliability of auxiliary contact has been increased, set up a tension spring on the carousel 52, provide a pulling force when the product is disconnected, make auxiliary contact reduce the influence to product contact disconnection speed and dynamics, outside sets up indicating device, can be according to the electric current condition when movable contact and first static contact's the display, can be in order to carry out the display device according to the fact that the movable contact is close to the second static contact or the static contact is in order to carry out the display device, can be in order to know like this the display device is close to the product display state.

Be equipped with a plurality of mounting grooves 13 on the shell 1, movable contact 2, second static contact 4 and first static contact 3 card establish in corresponding mounting groove 13 for each static contact and movable contact stable in structure, the better switch-on of realization circuit.

The shell 1 comprises a base 11 and an upper cover 12, a first positioning column 111 is arranged on the base 11, a second positioning column 524 is arranged on the rotary disc 52, one end of an elastic piece 53 is sleeved on the first positioning column 111, the other end of the elastic piece is sleeved on the second positioning column 524, a jack 121 is arranged on the upper cover 12 corresponding to the first positioning column 111, the jack 121 is inserted into the first positioning column 111, a limit boss 525 for preventing the elastic piece 53 from separating is arranged at the end part of the second positioning column 524, the assembly and the disassembly are convenient, the replacement of internal parts is convenient, the jack 121 and the positioning column are matched, and the limit boss is arranged to prevent the elastic piece from separating from the positioning column, three wiring terminals 112, 113 and 114 are sequentially arranged on the base 11, the movable contact piece 2 is arranged by adopting an elastic piece, one end of the elastic piece is electrically connected with the first wiring terminal 112, the other end of the elastic piece is provided with a movable contact 21, the first electrostatic contact 3 or the second electrostatic contact 4 is electrically connected with the second wiring terminal 113, the second electrostatic contact 4 is alternatively electrically connected with the first electrostatic contact 3 or the second electrostatic contact 4, the first electrostatic contact 4 is electrically connected with the third electrostatic contact 4 or the second electrostatic contact 114 is better, and the stable contact structure is realized.

Claims

1. The utility model provides an electric leakage auxiliary contact of circuit breaker, includes shell (1), movable contact (2) of setting on shell (1), first static contact (3), second static contact (4) and the link gear of drive movable contact (2) motion and first static contact (3) or second static contact (4) contact, its characterized in that, link gear includes universal driving axle (51), carousel (52) and elastic component (53) with synchronous pivoted of universal driving axle (51), universal driving axle (51) are square setting, correspond on carousel (52) and are equipped with square hole (521), realize the synchronous rotation of carousel (52) and universal driving axle (51) in the universal driving axle (521), elastic component (53) one end is fixed on shell (1), and the other end is connected with carousel (52), be equipped with draw-in groove (522) on carousel (52), movable contact (2) card establish in draw-in groove (522) with carousel (52) synchronous motion, when universal driving carousel (52) and moving contact (2) and carousel (52), the synchronous rotation of movable contact (52) is driven by the first static contact (52) and the movable contact (52) of movable contact (3).

2. The leakage auxiliary contact of the circuit breaker according to claim 1, wherein the shell (1) is provided with a plurality of mounting grooves (13), and the movable contact (2), the second static contact (4) and the first static contact (3) are clamped in the corresponding mounting grooves (13).

3. The electric leakage auxiliary contact of the circuit breaker according to claim 1 or 2, characterized in that the housing (1) comprises a base (11) and an upper cover (12), a first positioning column (111) is arranged on the base (11), a second positioning column (524) is arranged on the rotary table (52), one end of the elastic piece (53) is sleeved on the first positioning column (111), the other end of the elastic piece is sleeved on the second positioning column (524), a jack (121) is arranged on the upper cover (12) corresponding to the position of the first positioning column (111), the first positioning column (111) is inserted into the jack (121), and a limit boss (525) for preventing the elastic piece (53) from being separated is arranged at the end part of the second positioning column (524).

4. The leakage auxiliary contact of a circuit breaker according to claim 1 or 2, wherein two extending columns (523) are arranged on the turntable (52), and the two extending columns (523) are arranged at intervals to form the clamping groove (522).

5. The leakage auxiliary contact of the circuit breaker according to claim 3, wherein three connection terminals (112, 113, 114) are sequentially arranged on the base (11), the movable contact (2) is arranged by adopting a spring piece, one end of the spring piece is electrically connected with the first connection terminal (112), the other end of the spring piece is provided with a movable contact, the movable contact is alternatively electrically connected with the first static contact (3) or the second static contact (4), the first static contact (3) is electrically connected with the second connection terminal (113), and the second static contact (4) is electrically connected with the third connection terminal (114).