CN116190169A - Circuit breaker module of leakage circuit breaker - Google Patents

Abstract

The embodiment of the invention discloses a breaker module of an electric leakage breaker, which comprises: the shell is provided with a wire outlet end; the socket assembly is arranged at the outlet end and is used for being inserted into a conductive piece of the transformer module; the movable contact module is arranged in the shell; and one end of the electromagnetic trip coil is electrically connected with the socket assembly, and the other end of the electromagnetic trip coil is in contact electrical connection with the movable contact module. According to the invention, the socket assembly capable of being inserted into the external conductive piece is arranged at the outlet end to replace the traditional mode of connecting the external conductive piece by adopting the wire holder and the screw, so that the assembly and the insertion can be realized rapidly, and the miniaturization of the residual current circuit breaker can be realized.

Description

Circuit breaker module of leakage circuit breaker

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker module of an electric leakage circuit breaker.

Background

The low-voltage circuit breaker is a common switching device, and is mainly used for distributing electric energy, starting a motor infrequently and protecting a power line or electric equipment and the like.

The outgoing line end of the breaker module of the existing leakage breaker is generally connected with the conductive piece of the transformer module by adopting a wire holder and a screw mode, so that the size of the breaker is relatively large, and miniaturization of the leakage breaker cannot be realized.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an electric leakage breaker, and aims to solve the technical problem that the electric leakage breaker in the prior art cannot be miniaturized.

In order to solve the above problems, the present invention provides a circuit breaker module of an earth leakage breaker, comprising:

the shell is provided with a wire outlet end;

the socket assembly is arranged at the outlet end and is used for being inserted into a conductive piece of the transformer module;

the movable contact module is arranged in the shell;

and one end of the electromagnetic trip coil is electrically connected with the socket assembly, and the other end of the electromagnetic trip coil is in contact electrical connection with the movable contact module.

Further, in the breaker module of the residual-current circuit breaker, the electromagnetic trip coil includes a coil and a stationary contact;

one end of the coil is fixedly connected with the socket assembly, and the other end of the coil is fixedly connected with the fixed contact; the fixed contact and the movable contact module can be in contact connection.

Further, in the breaker module of the earth leakage breaker, the socket assembly includes a conductive contact and an elastic member;

one end of the elastic piece is fixedly connected with the conductive contact piece, an opening is formed between the other end of the elastic piece and the conductive contact piece, and the conductive piece can be electrically connected with the conductive contact piece in the opening through the elastic piece.

Further, in the breaker module of the leakage breaker, the conductive contact is bent to form a groove, the elastic member is at least partially located in the groove, and a clamping groove with the opening is formed between the second end of the elastic member and the conductive contact.

Further, in the breaker module of the earth leakage breaker, the conductive contact includes a first vertical portion, a first horizontal portion, and a second vertical portion;

the two ends of the first horizontal part are respectively and fixedly connected with the first vertical part and the second vertical part to form a J-shaped conductive piece.

Further, in the breaker module of the earth leakage breaker, the elastic member includes a third vertical portion and an inclined portion;

the inclined part is obliquely arranged close to the second vertical part and fixedly connected with the third vertical part to form a V-shaped elastic piece.

Further, in the breaker module of the residual current circuit breaker, the first end of the elastic member is riveted to the conductive contact member.

Further, in the breaker module of the earth leakage breaker, the second end of the elastic member is bent to be close to the first end.

Further, in the breaker module of the residual current circuit breaker, an extension portion is disposed at one end of the conductive contact, and the extension portion is fixedly connected with the electromagnetic trip coil.

Further, in the breaker module of the residual current circuit breaker, the top of the second end of the elastic member is inclined towards the first end close to the elastic member, so that the clamping groove guides the conductive member to be fast inserted.

According to the breaker module of the leakage breaker, provided by the embodiment of the invention, the socket assembly capable of being inserted into the conductive piece of the transformer module is arranged at the outlet end to replace the conductive piece of the transformer module which is connected in a traditional mode of adopting a wire holder and a screw, so that the assembly and the plug can be realized rapidly, and the miniaturization of the leakage breaker can be realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a breaker module of an electrical leakage breaker according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of a breaker module of the leakage breaker according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a breaker module of the leakage breaker according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of connection between a socket assembly and an electromagnetic trip coil according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a socket assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a conductive member of a circuit breaker module with an outlet terminal connected to a transformer module of the leakage circuit breaker according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the present invention, the term "some embodiments" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as exemplary is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for purposes of explanation.

It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

As shown in fig. 1 to 6, a circuit breaker module of an earth leakage breaker includes:

a housing 10, wherein an outlet terminal 102 is arranged on the housing 10;

a socket assembly 40, wherein the socket assembly 40 is arranged at the outlet end 102 and is used for plugging the conductive piece 60 of the transformer module;

a moving contact module, which is arranged in the shell 10;

and one end of the electromagnetic trip coil is electrically connected with the socket assembly 40, and the other end of the electromagnetic trip coil is in contact electrical connection with the movable contact module.

Specifically, by replacing the wire holder of the outlet end 102 of the breaker module of the residual current circuit breaker with the socket assembly 40, while one end of the socket assembly 40 is electrically connected with the electromagnetic trip coil, the other end of the socket assembly can be plugged with the conductive piece 60 of the transformer module, so that the volume of the outlet end 102 of the breaker module can be reduced, the conductive piece 60 of the transformer module can be quickly plugged into the socket assembly 40 at the outlet end 102 to realize the conduction between the inlet end 103 and the outlet end 102 of the breaker module, and the conductive piece 60 of the transformer module can be quickly pulled out of the socket assembly 40 at the outlet end 102 to realize the disconnection between the inlet end 103 and the outlet end 102 of the breaker module.

The transformer module can include a base, a transformer, a conductive assembly and the like, a wiring terminal is arranged on the base and used for bearing the transformer, the transformer is arranged on the base, a threading hole is formed in the transformer, a conductive piece 60 is arranged in the conductive assembly, one end of the conductive piece 60 is electrically connected in the socket assembly 40 in a plugging manner, and the other end of the conductive piece 60 is electrically connected with an external conductive piece at the wiring terminal. Meanwhile, the base can be detachably and fixedly connected with the shell 10 of the breaker module so as to realize the detachable and fixedly connected of the breaker module and the transformer module.

In addition, a conductive plate and a conductive sheet are arranged between the conductive piece 60 and the external conductive piece, the conductive piece 60 is electrically connected with the external conductive piece through the conductive plate and the conductive sheet in sequence, the conductive plate passes through the threading hole on the transformer, meanwhile, the conductive plate can be a U-shaped conductive plate as shown in fig. 6 or conductive plates with other shapes, and the conductive sheet is arranged in the wire outlet end of the transformer module, so that the circuit breaker module and the external conductive piece can be electrically connected.

The transformer module may be electrically connected to one breaker module or may be electrically connected to a plurality of breaker modules. Meanwhile, the mutual inductor module can be electrically connected with a plurality of breaker modules, the plurality of breaker modules can comprise at least one breaker module mentioned in the application, that is to say, the structures of the plurality of breaker modules can be the same or different, the mutual inductor module can be selected according to practical application, and the application is not particularly limited.

In some embodiments, as shown in fig. 3, the breaker module of the residual current circuit breaker further includes an arc extinguishing module 50, and the arc extinguishing module 50 is disposed in the housing 10 and is close to the electromagnetic trip coil. The arc extinguishing module 50 is used for extinguishing an arc generated by the residual current circuit breaker.

In some embodiments, as shown in fig. 3 and 6, the electromagnetic trip coil includes a coil 201 and a stationary contact 202; one end of the coil 201 is fixedly connected with the socket assembly 40, and the other end is fixedly connected with the fixed contact 202; the stationary contact 202 is contactably connected to the moving contact module and is proximate to the arc chute 50.

Specifically, a moving contact 303 is disposed on the moving contact module, and the moving contact 303 can move under the intervention of the outside and the inside and contact with the fixed contact 202, so as to realize the connection and disconnection between the incoming line end 103 and the outgoing line end 102 of the leakage breaker. When the incoming line end 103 and the outgoing line end 102 of the residual current circuit breaker need to be conducted, the moving contact 303 moves to be close to the fixed contact 202, so that contact with the fixed contact 202 is realized; when the line inlet 103 and the line outlet 102 of the residual current circuit breaker need to be disconnected, the moving contact 303 moves away from the fixed contact 202, so as to be separated from the fixed contact 202.

The contact between the fixed contact 202 and the moving contact module can be performed by manual intervention, or can be automatically separated under the condition that the circuit breaker module is loaded or short-circuited. As shown in fig. 3, an ejector rod 2031 assembly is further arranged on the electromagnetic trip coil, the coil 201 is wound on the ejector rod 2031 assembly, a movable ejector rod 2031 is arranged in the ejector rod 2031 assembly, when the circuit breaker module is in short circuit, the current in the coil 201 increases to push the ejector rod 2031 to be close to the trip assembly 301 on the moving contact module, so that the moving contact 303 on the moving contact module is separated from the fixed contact 202 on the electromagnetic trip coil, and the disconnection between the incoming end 103 and the outgoing end 102 of the circuit breaker module is realized.

Meanwhile, as shown in fig. 3, a double-gold 304 and a hot pulling rod 302 can be further arranged on the moving contact module, the double-gold 304 and the hot pulling rod 302 are in transmission connection with the moving contact 303, when the circuit breaker module is overloaded, the double-gold 304 is bent, the hot pulling rod 302 rotates anticlockwise, so that the moving contact 303 is far away from the fixed contact 202 on the electromagnetic tripping coil, and further disconnection between the incoming line end 103 and the outgoing line end 102 of the circuit breaker module is realized.

In some embodiments, as shown in fig. 4, 5 and 6, the socket assembly 40 includes a conductive contact 401 and a resilient member 402; the elastic member 402 includes a first end and a second end, the first end is fixedly connected with the conductive contact 401, an opening is formed between the second end and the conductive contact 401, and the conductive member 60 of the transformer module can be electrically connected with the conductive contact 401 in the opening through the elastic member 402 in a plug-in manner.

Specifically, the opening formed between the conductive contact 401 and the elastic element 402 can be stretched and contracted, and the opening is smaller, so that an external force needs to be applied to the conductive element 60 of the transformer module to plug the conductive element 60 into the opening, and meanwhile, the elastic element 402 is extruded to apply an elastic force to the conductive element 60 of the transformer module, so that the conductive element 60 is contacted with the conductive contact 401, and further, the conductive element 60 of the transformer module is electrically connected with an external conductive element at the wire inlet end 103; when the conductive member 60 of the transformer module needs to be pulled out of the opening, the conductive member 60 of the transformer module can be separated from the circuit breaker module by only applying external force to the conductive member 60 of the transformer module again.

In some embodiments, as shown in fig. 5, the conductive contact 401 is bent to form a groove 403, and the elastic member 402 is at least partially located in the groove 403, and a clamping groove with an opening is formed between the second end of the elastic member 402 and the conductive contact 401.

The conductive contact 401 may be a metal conductive sheet, but is not limited thereto; the elastic member 402 may be a pressure spring plate, and similarly, the elastic member 402 is not limited thereto.

In some embodiments, as shown in fig. 5, the conductive contact 401 includes a first vertical portion 4012, a first horizontal portion 4013, and a second vertical portion 4014, and the elastic member 402 includes a third vertical portion 4021, an inclined portion 4022; wherein, two ends of the first horizontal portion 4013 are respectively and fixedly connected with the first vertical portion 4012 and the second vertical portion 4014 so as to form a J-shaped conductive contact; the inclined portion 4022 is disposed adjacent to the second vertical portion 4014 in an inclined manner and fixedly connected to the third vertical portion 4021 to form a V-shaped elastic member. Specifically, after the two ends of the first horizontal portion 4013 are fixedly connected to the first vertical portion 4012 and the second vertical portion 4014, a groove 403 may be formed on the conductive contact 401; one end of the third vertical portion 4021 may be directly fixed on the inner wall of the groove 403, that is, the first end of the elastic member 402 may be riveted on the conductive contact member 401, the other end of the third vertical portion 4021 is fixedly connected to the inclined portion 4022, and the inclined portion 4022 is obliquely disposed near the second vertical portion 4014.

In some embodiments, the elastic member 402 further includes a bending portion 4023, where one end of the bending portion 4023 is bent near the second end of the elastic member 402, that is, the top of the second end of the elastic member 402 is inclined toward the first end near the elastic member 402, so that the card slot guides the conductive member 60 of the transformer module to be plugged in quickly.

Meanwhile, an end of the clamping groove with an opening is formed between the conductive contact 401 and the second end of the elastic member 402, that is, one side of the clamping groove near the conductive contact 401, and the top of the clamping groove can also be provided with a slope structure, so that the conductive member 60 of the transformer module can be quickly inserted into the clamping groove.

In some embodiments, as shown in fig. 5, the first end of the elastic member 402 may be riveted to the conductive contact 401 by a plurality of rivets 405 to realize an integrated structure of the conductive contact 401 and the elastic member 402.

Meanwhile, when the conductive contact 401 and the elastic element 402 form an integrated structure, the conductive contact may be realized by a screw, or may be fastened by other manners in the prior art, which may be selected according to practical applications, and the embodiment is not limited specifically.

In some embodiments, as shown in fig. 4-6, one end of the conductive contact 401 is provided with an extension 4011, and the extension 4011 is fixedly connected to the coil 201. Specifically, the extension portion 4011 may be vertically fixed with the first vertical portion 4012 and may be integrally formed, and one end of the coil 201 may be directly placed on the extension portion 4011 and fixedly and electrically connected with the conductive contact 401 through the extension portion 4011.

In the manufacturing process of the conductive contact 401, one end of the conductive contact 401 electrically connected with the coil 201 may be bent directly in a sheet metal manner to form a step shape so as to form an extension portion 4011 electrically connected with the coil 201 at the step shape, and the other end of the conductive contact 401, that is, a second end of a side of the conductive contact 401 located at the opening clamping groove and facing away from the elastic member 402 is obliquely arranged, so that the conductive member 60 may be guided to be inserted quickly, and meanwhile, the side may also be bent directly in a sheet metal manner so that the conductive contact 401 is bent to form a groove 403, so that a clamping groove with an opening is formed between the second end of the elastic member 402 and the conductive contact 401, and thus the conductive member 60 of the transformer module may be electrically connected with the circuit breaker module in the clamping groove in a plug-in manner.

Similarly, the elastic member 402 may be bent in a conventional manner, so as to form a slot with an opening in the groove 403 of the conductive contact 401. That is, the bending manner of the conductive contact 401 and the elastic member 402 may be selected according to practical applications, and the present embodiment is not particularly limited.

In some embodiments, as shown in fig. 1, 2 and 3, a handle 101 is further disposed on the housing 10, and the handle 101 is in transmission connection with the moving contact module. Specifically, by applying an external force to the handle 101, the moving contact 303 on the moving contact module can be contacted with and separated from the fixed contact 202 on the electromagnetic trip coil, so as to realize connection and disconnection between the incoming line end 103 and the outgoing line end 102 of the circuit breaker module.

In some embodiments, as shown in fig. 3, the housing 10 is further provided with a wire inlet terminal 103 for connecting to an external wire. Specifically, the wire inlet 103 is provided with a wire holder, and the wire holder is electrically connected to the second external conductive member through a screw member.

According to the breaker module of the leakage breaker, the socket assembly 40 which can be inserted with the external conductive piece is arranged at the outlet end 102 to replace the traditional mode of connecting the external conductive piece by adopting a wire holder and a screw, so that the assembly and the insertion of the leakage breaker can be realized rapidly, and the miniaturization of the leakage breaker can be realized.

While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (10)

1. A circuit breaker module of an earth leakage breaker, comprising:

a housing (10), wherein a wire outlet end (102) is arranged on the housing (10);

the socket assembly (40) is arranged at the outlet end (102) and is used for being connected with a conductive piece (60) of the transformer module in an inserting mode;

the movable contact module is arranged in the shell (10);

and one end of the electromagnetic tripping coil is electrically connected with the socket assembly (40), and the other end of the electromagnetic tripping coil is in contact electrical connection with the movable contact module.

2. The circuit breaker module of an earth leakage circuit breaker according to claim 1, characterized in that the electromagnetic trip coil comprises a coil (201) and a stationary contact (202);

one end of the coil (201) is fixedly connected with the socket assembly (40), and the other end of the coil is fixedly connected with the fixed contact (202); the fixed contact (202) is in contact connection with the movable contact module.

3. The circuit breaker module of an electrical leakage circuit breaker according to claim 1, wherein the socket assembly (40) comprises a conductive contact (401) and a resilient member (402);

the elastic piece (402) comprises a first end and a second end, the first end is fixedly connected with the conductive contact piece (401), an opening is formed between the second end and the conductive contact piece (401), and the conductive piece (60) can be electrically connected with the conductive contact piece (401) through the elastic piece (402) in the opening.

4. A circuit breaker module according to claim 3, wherein the conductive contact (401) is bent to form a groove (403), the elastic member (402) being at least partially located in the groove (403), a clamping groove having the opening being formed between the second end of the elastic member (402) and the conductive contact (401).

5. The circuit breaker module of an earth leakage circuit breaker of claim 4, characterized in that the conductive contact (401) comprises a first vertical portion (4012), a first horizontal portion (4013) and a second vertical portion (4014);

the two ends of the first horizontal part (4013) are respectively and fixedly connected with the first vertical part (4012) and the second vertical part (4014) so as to form a J-shaped conductive piece.

6. The circuit breaker module of an earth leakage circuit breaker according to claim 5, characterized in that the elastic member (402) comprises a third vertical portion (4021) and an inclined portion (4022);

the inclined part (4022) is obliquely arranged close to the second vertical part (4014) and is fixedly connected with the third vertical part (4021) so as to form a V-shaped elastic piece.

7. A circuit breaker module according to claim 3, characterized in that the first end of the elastic member (402) is riveted to the conductive contact member (401).

8. A circuit breaker module according to claim 3, wherein the second end of the resilient member (402) is bent to be close to the first end.

9. A circuit breaker module according to claim 3, characterized in that one end of the conductive contact (401) is provided with an extension (4011), said extension (4011) being fixedly connected with the electromagnetic trip coil.

10. The circuit breaker module of an electrical leakage breaker according to claim 4, wherein the top of the second end of the elastic member (402) is inclined toward the first end near the elastic member (402) such that the clamping groove guides the conductive member (60) to be rapidly inserted.

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