WO2019080418A1

WO2019080418A1 - Circuit breaker

Info

Publication number: WO2019080418A1
Application number: PCT/CN2018/076483
Authority: WO
Inventors: 刘响荣; 李靖
Original assignee: 乐清市高科环保电子有限公司
Priority date: 2017-10-25
Filing date: 2018-02-12
Publication date: 2019-05-02
Also published as: CN107564779A

Abstract

The present invention provides a circuit breaker, comprising a circuit breaker body and a plurality of connecting units arranged in parallel. Each of the connecting units comprises: a body provided with a plurality of first through holes, the first through holes being suitable for different wires to penetrate through; and a conductive structure disposed on the body, and comprising a first end electrically connected to a connecting terminal of the circuit breaker body and a second end electrically connected to the wire that penetrates through one of the first through holes. The first through holes at the same positions of the connecting units arranged in parallel are matched to form a wire passage that allows the wires to penetrate through. When the circuit breaker is connected to a power supply, wires of the power supply only need to penetrate through the wire passage formed by the first through holes in the connecting units. In the case that there are a large number of circuit breakers, the number of wires needing to be connected is relatively small in a side wire inlet mode, so that inspection and maintenance are facilitated; the wires are arranged neatly; unlike existing direct front wire inlet and outlet modes, the wires can be conveniently connected without being bent and stripped during connection.

Description

Circuit breaker

Technical field

The invention relates to the technical field of electrical engineering parts, and in particular to a circuit breaker.

Background technique

A circuit breaker is a switching device that can close, carry and break current under normal circuit conditions and can close and carry current under the abnormal loop conditions within a specified time. The circuit breaker can be used to distribute electric energy, start the asynchronous motor infrequently, protect the power line and the motor, and automatically cut off the circuit when they are severely overloaded or short-circuited or under-voltage faults. The function is equivalent to the fuse switch. Combined with overheating relays, etc. Moreover, it is generally not necessary to change parts after breaking the fault current. At present, it has been widely used.

When the existing circuit breaker is connected to the power source, the wire connection or the bus bar connection is generally used. When connecting with wires, the wires need to be bent and stripped to connect with the terminals of the circuit breaker. The wiring is complicated. When multiple circuit breakers of different pole numbers are connected to the same live or neutral line, multiple wires are required to be used. The circuit breaker is connected, the wiring is more complicated, and the number of lines is increased, which makes the maintenance difficulty more difficult. When the bus bar is connected, the bus bar needs to be customized to the manufacturer, and the cost is high.

Summary of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the inconvenience of connection failure between the circuit breaker and the power supply in the prior art, thereby providing a circuit breaker that is convenient to be connected to the power source.

In order to solve the above technical problem, the present invention provides a circuit breaker comprising a circuit breaker body and a plurality of connecting units arranged in parallel, each of the connecting units comprising:

a body, the body is provided with a plurality of first through holes, each of the first through holes being adapted to pass through different conductors;

a conductive structure disposed on the body, including a first end electrically connected to a connection terminal of the circuit breaker, and a second end electrically connected to a conductor passing through one of the first through holes;

The first through holes at the same position on the connecting unit arranged side by side cooperate to form a conductor passage through which the conductor passes.

The first through holes are provided at least in a row on the body.

The first through holes are provided in a row, and the first through holes are evenly distributed on the body.

The conductor is an insulated conductor, the conductive structure includes a conductive member, a mating structure, and an insulator that is punctured with the mating structure to electrically penetrate the insulating sheath and the metal core of the insulated conductor a piercing structure, the conductive member is electrically connected to the piercing structure, the piercing structure forms the second end, and the insulating sheath wire is disposed between the mating structure and the piercing structure When the distance between the mating structure and the piercing structure is shortened, the piercing structure pierces the insulating sheath wire and is electrically connected to the metal core.

The mating structure includes

a conductor mounting cavity, the upper surface is provided with a threaded hole, and the conductor enters the conductor mounting cavity through the first through hole;

a limiting structure for preventing rotation of the conductor mounting cavity;

a screw having an outer diameter matching the inner diameter of the threaded hole, passing through the threaded hole, and rotating the conductor mounting cavity toward the piercing structure or away from the piercing structure when rotating, and approaching When the piercing structure moves in the direction, the conductor is driven to press the piercing structure.

The puncturing structure is a serration disposed on the conductive member to pierce the insulating sheath, and the serration is in the conductor mounting cavity.

The body includes a main body plate provided with the first through hole, and a side plate perpendicular to the main body plate, the side plate is provided with a plurality of second through holes, and the second through hole corresponds to the first The through holes are provided one by one, and the screw is rotated through the second through holes.

The body includes a partition disposed on the body to divide the body into a plurality of chambers, and the corresponding first through hole is disposed in the chamber, and the conductor passes through the first through hole and enters Within the corresponding chamber, the conductor mounting cavity is disposed in one of the chambers.

The partition plate is provided with a card slot, and the conductive member is engaged in the card slot.

The circuit breaker body is integrally formed with the connecting unit.

The technical solution of the present invention has the following advantages:

1. The circuit breaker provided by the present invention, when connected to a power source, the wires of the power source only need to pass through the conductor passage formed by the first through hole on each connecting unit, and the wire that needs to be electrically connected to the circuit breaker body passes through The conductive structure is electrically connected with the connection terminal of the circuit breaker body. In the case of a large number of circuit breakers, the number of wires to be connected is small through the side entry line, the maintenance is convenient, the wires are arranged neatly, and the wires are not required. For example, the direct front entry and exit lines are currently bent and stripped during connection, and the connection is convenient.

2. The circuit breaker according to the present invention, wherein the first through hole is provided with a row, and the first through hole is evenly distributed on the body, so that the arrangement of the conductor in the connecting device is uniform and convenient. wiring.

3. The circuit breaker provided by the present invention, wherein the conductor is an insulated conductor, the conductive structure comprises a conductive member, a mating structure, and an insulating skin and a joint of the mating structure to pierce the insulating sheath a piercing structure for electrically connecting the metal cores of the insulating sheath wires, wherein the conductive member is electrically connected to the piercing structure, the piercing structure forms the second end, and the insulating sheath wires are disposed on the mating Between the structure and the puncturing structure, when the distance between the mating structure and the puncturing structure is shortened, the puncturing structure pierces the insulating sheath wire and is electrically connected to the metal core, so that the arrangement is such that The overall structure of the circuit breaker is simple and compact.

The circuit breaker provided by the present invention, the piercing structure is a saw tooth disposed on the conductive member to pierce the insulating skin, and the saw tooth is in the conductor mounting cavity, so that The contact area between the conductive member and the metal core in the insulating conductor is large, and the electrical connection between the conductor and the conductive member is relatively stable.

The present invention provides a circuit breaker, the body includes a partition plate disposed on the body to divide the body into a plurality of chambers, and the corresponding first through hole is disposed in the chamber. The conductor passes through the first through hole and enters the corresponding chamber. The conductor mounting cavity is disposed in one of the chambers. The arrangement is such that the distance between the different conductors is not contacted, which is more safe and reliable.

6. The circuit breaker provided by the present invention, the circuit breaker body and the connecting unit are integrally formed, so that the circuit breaker is more safe and reliable.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a schematic structural view of a combined connection of different pole circuit breakers provided in a first embodiment of the present invention;

2 is a schematic structural view of the connecting unit shown in FIG. 1;

Figure 3 is a structural schematic view showing the arrangement of the conductive structures in the connecting unit shown in Figure 2 at different positions;

4 is a schematic structural view of a circuit breaker according to a second embodiment of the present invention;

FIG. 5 is a schematic structural view of a circuit breaker according to a third embodiment of the present invention.

Description of the reference signs:

1-circuit breaker body; 2-connecting unit; 3-first through hole;

4-first end; 5-conducting member; 6-piercing structure;

7-conductor mounting cavity; 8-screw; 9-second through hole;

10-wire N; 11-wire A; 12-wire B;

13-wire C.

Detailed ways

The technical solutions of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

Further, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

Example 1

A specific embodiment of a circuit breaker of the present invention, as shown in FIGS. 1-3, includes a circuit breaker body 1 and a plurality of connecting units 2 arranged side by side, each of the connecting units 2 comprising: a body, the body a plurality of first through holes 3 are provided, each of the first through holes 1 is adapted to pass through a different conductor; a conductive structure is disposed on the body and includes a first electrical connection with a connection terminal of the circuit breaker body 1 One end 4, a second end electrically connected to a conductor passing through one of the first through holes 3; and the first through holes 3 at the same position on the connecting unit 2 arranged side by side to form a supply The conductor path through which the conductor passes. When connected to the power source, the wires of the power source only need to pass through the conductor passage formed by the first through hole 3 on each connection unit 2, and the wire that needs to be electrically connected to the circuit breaker body 1 is connected to the circuit breaker body through the conductive structure. The terminals are electrically connected. In the case of a large number of circuit breakers, the number of wires to be connected is small through the side entry line, the maintenance is convenient, the wires are arranged neatly, and the wires do not need to be directly front-facing as currently used. The way of outlet is to bend and strip when connecting, and the connection is convenient.

The first through hole 3 is provided with at least one row on the body. In this embodiment, as shown in FIG. 2 or 3, the first through hole 3 is provided with a row, and the first through hole 3 is provided. Uniformly distributed on the body, such that the arrangement of the conductors in the circuit breaker is uniform, convenient wiring, and the circuit breaker thus constructed is also convenient for processing and manufacturing.

In this embodiment, the conductor is an insulated conductor, and the conductor is electrically connected to the circuit breaker body 1. The conductive structure includes a conductive member 5, a mating structure, and a mating structure can be pierced. a piercing structure 6 electrically connecting the insulating skin of the insulating sheath wire and the metal wire core of the insulating sheath wire, wherein the conductive member 5 is electrically connected to the piercing structure 6, and the piercing structure 6 forms the first At the two ends, the insulating sheath wire is disposed between the mating structure and the piercing structure 6, and when the distance between the mating structure and the piercing structure 6 is shortened, the piercing structure 6 is pierced The insulating sheath wire is electrically connected to the metal wire core, and the arrangement makes the overall structure of the circuit breaker simple and compact. Specifically, as shown in FIG. 2 or 3, the mating structure includes a conductor mounting cavity 7, and the upper surface is provided with a threaded hole, and the conductor enters the conductor mounting cavity 7 through the first through hole 3; a structure for preventing rotation of the conductor mounting cavity; a screw 8 having an outer diameter matching the inner diameter of the threaded hole, passing through the threaded hole, and driving the conductor mounting cavity 7 toward the thorn when rotating The broken structure 6 is moved away from the piercing structure 6 and, when moving in the direction of the piercing structure 6, drives the conductor to press the piercing structure 6. The body includes a main body plate provided with the first through hole 3, and a side plate perpendicular to the main body plate, the side plate is provided with a plurality of second through holes 9, and the second through holes 9 correspond to The first through holes 3 are disposed one by one, and the screw 8 is rotated through the second through holes 9. In order to ensure that the electrical connection between the conductor and the conductive member 5 is relatively stable, the conductive member 5 needs to have a large contact area with the metal core in the insulating sheath. In the present embodiment, the piercing structure 6 is disposed at A serration on the conductive member that can pierce the insulating sheath, and the serration is in the conductor mounting cavity 7.

When the conductor is connected, the collision between the conductors is prone to danger, and the collision is not caused by the distance between the conductor and the conductor. As shown in FIG. 2 or 3, the body includes the body disposed on the body. a partition plate divided into a plurality of chambers, wherein the first through hole 3 is disposed in the corresponding chamber, and the conductor passes through the first through hole 3 and enters the corresponding chamber, the conductor is installed A cavity 7 is disposed in one of the chambers. A card slot is disposed on the partition, and the conductive member 5 is snapped into the card slot.

In the specific use, as shown in FIG. 1, the circuit breaker with the number of poles of the three poles, two poles and one pole is connected with the power source, and the wire N10, the wire A11, the wire B12 and the wire C13 of the power supply are sequentially passed through In the conductor channel formed by the first through hole 3, the connecting ends of the three-pole circuit breaker are respectively connected with the wire A11, the wire B12 and the wire C13 of the corresponding position, and the connecting ends of the two-pole circuit breaker are respectively connected with the wires of the corresponding position. N10 and the wire A11 are connected, and the connection end of the one-pole circuit breaker is in communication with the wire B12. The screw 8 is disposed at each position to be connected, and the screw 8 is disposed in the second through hole 9. One end of the screw 8 abuts against the upper end of the conductive member 5, and the screw 8 is rotated. The conductor mounting cavity 7 drives the wire to move in a direction close to the sawtooth until the saw tooth pierces the insulating skin, and after the piercing, the conductive member is electrically connected to the metal wire core in the insulating sheath wire to be an open circuit. Power supply. The wires are arranged neatly, the number is small, the safety performance is high, the troubleshooting is simple, and the wires do not need to be bent and stripped, and the wiring manner is simple.

Example 2

The difference between this embodiment and the above embodiment is that, as shown in FIG. 4, the circuit breaker body 1 and the connecting unit 2 are integrally formed to make the circuit breaker more secure and reliable.

Example 3

In this embodiment, as shown in FIG. 5, the first through holes 3 are arranged in two rows on the body.

It is apparent that the above-described embodiments are merely illustrative of the examples, and are not intended to limit the embodiments. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations resulting therefrom are still within the scope of the invention.

Claims

A circuit breaker, comprising: a circuit breaker body and a plurality of connecting units arranged in parallel, each of the connecting units comprising:

a body, the body is provided with a plurality of first through holes, each of the first through holes being adapted to pass through different conductors;

a conductive structure, disposed on the body, including a first end electrically connected to a connection terminal of the circuit breaker body, and a second end electrically connected to a conductor passing through one of the first through holes;

The first through holes at the same position on the connecting unit arranged side by side cooperate to form a conductor passage through which the conductor passes.
A circuit breaker according to claim 1, wherein said first through holes are provided at least in a row on said body.
A circuit breaker according to claim 2, wherein said first through holes are provided in a row, and said first through holes are evenly distributed on said body.
The circuit breaker according to any one of claims 1 to 3, wherein the conductor is an insulated conductor, the conductive structure comprises a conductive member, a mating structure, and a thorn with the mating structure a piercing structure for electrically connecting the insulating skin of the insulating sheath wire and the metal wire core of the insulating sheath wire, the conductive member being electrically connected to the piercing structure, the piercing structure forming the second end The insulating sheath wire is disposed between the mating structure and the piercing structure, and when the distance between the mating structure and the piercing structure is shortened, the piercing structure pierces the insulating sheath wire and The metal wire cores are electrically connected.
A circuit breaker according to claim 4, wherein said mating structure comprises

a conductor mounting cavity, the upper surface is provided with a threaded hole, and the conductor enters the conductor mounting cavity through the first through hole;

a limiting structure for preventing rotation of the conductor mounting cavity;

a screw having an outer diameter matching the inner diameter of the threaded hole, passing through the threaded hole, and rotating the conductor mounting cavity toward the piercing structure or away from the piercing structure when rotating, and approaching When the piercing structure moves in the direction, the conductor is driven to press the piercing structure.
A circuit breaker according to claim 5, wherein said piercing structure is a serration provided on said conductive member to pierce said insulating sheath, and said serration is in said conductor mounting Inside the cavity.
A circuit breaker according to claim 5, wherein said body comprises a main body plate provided with said first through hole, and a side plate perpendicular to said main body plate, said side plate being provided with a plurality of a second through hole, wherein the second through hole is disposed corresponding to the first through hole, and the screw is rotated through the second through hole.
A circuit breaker according to any one of claims 1 to 3, wherein the body comprises a partition plate disposed on the body to divide the body into a plurality of chambers, corresponding to the chamber The first through hole is disposed, and the conductor passes through the first through hole and enters a corresponding chamber, and the conductor mounting cavity is disposed in one of the chambers.
The circuit breaker according to claim 8, wherein the partition plate is provided with a card slot, and the conductive member is engaged in the card slot.
A circuit breaker according to any one of claims 1 to 9, wherein the circuit breaker body is integrally formed with the connecting unit.