CN214226840U

CN214226840U - Single-pole circuit breaker

Info

Publication number: CN214226840U
Application number: CN202022997139.1U
Authority: CN
Inventors: 魏首勋
Original assignee: Shenzhen Mantunsci Technology Co ltd
Current assignee: Shenzhen Mantunsci Technology Co ltd
Priority date: 2020-09-27
Filing date: 2020-12-14
Publication date: 2021-09-17
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a single-pole circuit breaker, which comprises a circuit breaker main body, a main circuit input terminal, a main circuit output terminal and a switch assembly, wherein the main circuit input terminal, the switch assembly and the main circuit output terminal are connected to form a main circuit; the bottom of the breaker main body is provided with a clamping groove for mounting the breaker main body on a guide rail; the circuit control board is arranged in the circuit breaker main body and is provided with a first voltage detection end and a second voltage detection end, and the first voltage detection end is electrically connected to the main loop; and the power taking part is arranged on the circuit breaker main body, one end of the power taking part is electrically connected with the second voltage detection end, the other end of the power taking part is arranged in the clamping groove, so that when the circuit breaker main body is arranged on the guide rail, the power taking part is electrically connected with the guide rail, and the guide rail is grounded and connected with the other pole of the power supply, so that a voltage difference is formed between the first voltage detection end and the second voltage detection end. The utility model provides a conveniently realize voltage detection's monopole circuit breaker.

Description

Single-pole circuit breaker

Technical Field

The utility model relates to a monopole circuit breaker technical field, concretely relates to monopole circuit breaker.

Background

The voltage detection must have two terminals to realize positive and negative pressure difference, and the single-pole circuit breaker in the prior art has only one power line, so that the voltage detection is difficult to realize.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a conveniently realize voltage detection's monopole circuit breaker.

To achieve the above object, the present invention provides a single-pole circuit breaker comprising:

the circuit breaker comprises a circuit breaker main body, a circuit breaker main body and a circuit breaker main body, wherein the circuit breaker main body is provided with a main loop input terminal, a main loop output terminal and a switch assembly, the switch assembly is connected between the main loop input terminal and the main loop output terminal, a connecting line of the main loop input terminal, the switch assembly and the main loop output terminal is a main loop, and the switch assembly is used for controlling the connection or disconnection between the main loop input terminal and the main loop output terminal; the bottom of the breaker main body is provided with a clamping groove for the breaker main body to be mounted on a guide rail;

the circuit control board is arranged in the circuit breaker main body and provided with a first voltage detection end and a second voltage detection end, and the first voltage detection end is electrically connected to the main loop; and

the power acquisition part is arranged on the circuit breaker main body, one end of the power acquisition part is electrically connected with the second voltage detection end, and the other end of the power acquisition part is arranged in the clamping groove, so that the circuit breaker main body is arranged on the guide rail and is electrically connected with the guide rail, and a voltage difference is formed between the first voltage detection end and the second voltage detection end.

In one embodiment, the electricity-taking piece is a conductive elastic piece.

In an embodiment, the clamping groove has a bottom wall and two opposite side walls connected to the bottom wall, an opening is formed at one end of each of the two side walls away from the bottom wall, the opening faces the bottom wall, and the conductive elastic sheet penetrates through the clamping groove from the bottom wall.

In an embodiment, a first through hole through which the conductive elastic sheet passes is formed in a position, close to one of the side walls, of the bottom wall, a second through hole is formed in the side wall, close to the first through hole, of the bottom wall, one end of the conductive elastic sheet is fixed to the circuit control board, and the other end of the conductive elastic sheet passes through the first through hole and then is inserted into the second through hole.

In an embodiment, the slot is disposed in a trapezoidal shape in a direction from the opening to the bottom wall or the two side walls are disposed in a relatively close manner in a direction from the bottom wall to the opening.

In one embodiment, the bottom of the breaker main body is provided with a first mounting seat and a second mounting seat, the first mounting seat and the second mounting seat are arranged oppositely, and the clamping groove is defined between the first mounting seat, the second mounting seat and the bottom of the breaker main body; the electricity taking piece is arranged close to the first mounting seat or the second mounting seat.

In one embodiment, the circuit breaker main body is provided with a mounting post, the conductive elastic sheet is provided with a fixing hole, and the conductive elastic sheet passes through the fixing hole through a screw and then is in threaded connection with the mounting post so as to fasten the conductive elastic sheet on the mounting post.

In one embodiment, one end of the mounting post is fixed on one side wall of the breaker main body, the other end of the mounting post penetrates through the circuit control board, and the other end of the mounting post is provided with a screw hole in threaded connection with the screw.

In an embodiment, the conductive elastic sheet is provided with a mounting plate, the mounting plate is vertically connected with the conductive elastic sheet, the fixing hole is formed in the mounting plate, the surface of the conductive elastic sheet faces the side wall of the mounting column, and the mounting plate is attached to one end, far away from the circuit control board, of the mounting column.

In one embodiment, the first voltage detection end is electrically connected to the main loop input terminal or the main loop output terminal;

or the first voltage detection end is electrically connected between the main loop input terminal and the switch assembly;

or the first voltage detection end is electrically connected between the main loop output terminal and the switch assembly;

or the first voltage detection end is electrically connected to the switch assembly.

In an embodiment, the bottom of the circuit breaker main body further has an arc outlet, and the arc outlet is opened on the bottom wall of the card slot.

The utility model discloses technical scheme is through with the first voltage detection end electricity on the circuit control board connect in the major loop, form one utmost point in the positive negative pole of voltage detection, get the electric piece with the second voltage detection end electricity on the circuit control board and connect to connect distribution equipment's guide rail through getting the electric piece, form another utmost point in the positive negative pole of voltage detection, the ground connection power supply another utmost point of guide rail itself makes two terminals of voltage detection form the voltage difference, thereby has realized the detection to circuit breaker voltage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a single-pole circuit breaker according to an embodiment of the present invention;

FIG. 2 is another perspective view of FIG. 1;

fig. 3 is a schematic view of the installation structure of the single-pole circuit breaker and the guide rail of the present invention;

FIG. 4 is another perspective view of FIG. 3;

fig. 5 is a schematic view of an installation structure of an embodiment of a conductive elastic sheet.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a monopole circuit breaker.

Referring to fig. 1 to 4, in an embodiment, the present invention provides a single-pole circuit breaker including:

a circuit breaker body 100 having a main circuit input terminal, a main circuit output terminal 110, and a switch unit 120, wherein the switch unit 120 is connected between the main circuit input terminal and the main circuit output terminal 110, a connection line between the main circuit input terminal, the switch unit 120, and the main circuit output terminal is a main circuit, and of course, when a new line, component, or element is connected in series to the connection line between the main circuit input terminal, the switch unit 120, and the main circuit output terminal, the circuit breaker body also constitutes a part of the main circuit, and the switch unit 120 is used to control the connection or disconnection between the main circuit input terminal and the main circuit output terminal 110; the bottom of the breaker main body 100 is provided with a card slot 101 for mounting on a guide rail 50 of power distribution equipment;

a circuit control board (not shown) provided in the circuit breaker main body 100, the circuit control board having a first voltage detection terminal electrically connected to the main circuit and a second voltage detection terminal; and

the power acquisition part 200 is arranged on the circuit breaker main body 100, one end of the power acquisition part 200 is electrically connected with the second voltage detection end, and the other end of the power acquisition part 200 is arranged in the clamping groove 101, so that the circuit breaker main body 100 is arranged on the guide rail 50 and electrically connected with the guide rail 50, and a voltage difference is formed between the first voltage detection end and the second voltage detection end.

In this embodiment, the switch assembly 120 is mainly a manual switch, and switching on and off is realized by manual control, and of course, an automatic switching on and off is realized by including a driving assembly. The circuit board may be installed along a sidewall of the breaker body 100 to reduce space occupation. The circuit control board may be provided with a voltage sampling circuit, a current sampling circuit, an electric quantity metering circuit, an overcurrent protection circuit, a wireless module, a motor driving circuit, and the like, without limitation. The first voltage detection end and the second voltage detection end are two voltage detection ends on the circuit control board, are connected with a voltage sampling circuit on the circuit control board and are used as detection signal input ports.

It should be noted that, the first voltage detection end is electrically connected to the main circuit, and specifically, the first voltage detection end is electrically connected to the main circuit input terminal or the main circuit output terminal 110; the first voltage detection terminal may be electrically connected between the main circuit input terminal and the switch assembly 120; the first voltage detection terminal may be electrically connected between the main circuit output terminal 110 and the switch assembly, or the first voltage detection terminal may be electrically connected to the switch assembly 120, and the first voltage detection terminal is not limited as long as power can be taken from the main circuit. That is, the first voltage detecting terminal may be electrically connected to any node of the main circuit, and the electrical connection referred to herein may be directly connected to the target component or the target location in practical applications, or may be indirectly connected, for example, connected to another place electrically connected to the target component or the target location, as long as the electrical connection is achieved. It should be noted that the main circuit input terminal and the main circuit output terminal 110 are not limited to be specifically used as input and output in practical application, and both the main circuit input terminal and the main circuit output terminal 110 can be used as input or output in practical application according to the characteristics of the circuit breaker.

Since this embodiment is to the voltage detection of single-pole circuit breaker, single-pole circuit breaker can be single-pole direct current circuit breaker or single-pole alternating current circuit breaker, all can adopt the scheme of this embodiment. For unipolar detection, two terminals (different polarities) are required to realize positive and negative voltage difference, namely, a positive electrode and a ground reference signal, so that voltage detection can be realized. In this embodiment, the first voltage detection terminal is connected to the main circuit to form one polarity, and then the power-taking element 200 connected to the second voltage detection terminal is provided to implement connection of the other polarity. It should be noted that the circuit breaker is generally used in power distribution equipment such as an electric cabinet, power supply equipment, and a power distribution cabinet, and the power distribution equipment is generally provided with a guide rail 50 for installing the circuit breaker or other electrical switches. The guide rail 50 is connected to one of the positive and negative poles of the power distribution equipment, for example, the dc positive pole of the power distribution power supply is generally grounded in dc power distribution, and therefore, the guide rail 50 itself is generally grounded and connected to the dc positive pole of the power distribution power supply. The electric cabinet is the grounding of the guide rail 50, and forms a reference ground. Therefore, it is ensured that the first voltage detection terminal and the second voltage detection terminal have different voltage polarities after being mounted on the rail 50, and a voltage difference can be formed. When the circuit breaker is installed on the guide rail 50 in the distribution equipment, the power taking part 200 is connected with one of the positive electrode and the negative electrode of the power supply in the distribution equipment through the guide rail 50, so that a voltage difference is formed between the first voltage detection end and the second voltage detection end on the circuit control board, and the voltage of the circuit breaker is detected. It should be further noted that, in practice, the polarities of the positive and negative voltages of the first voltage detection terminal and the second voltage detection terminal are not limited, and the positive and negative voltages can be selected, because the voltage is the voltage difference between the two terminals.

The power receiving element 200 may be a conductive wire, a metal sheet, or an elastic contact that can be telescopically arranged, and is not limited herein as long as the second voltage detecting terminal can be electrically connected to the guide rail 50. The electricity taking part 200 is preferably arranged in the embodiment and is a conductive elastic sheet, the conductive elastic sheet is easy to process and install, the occupied space is small, the elasticity is realized, and the installation difficulty of the circuit breaker on the guide rail 50 cannot be increased due to larger rigidity. In this embodiment, the power extractor 200 may be soldered on a circuit board or fixed by a mounting base. In one embodiment, the conductive elastic piece is detachably mounted on the breaker main body 100. This kind of mounting means, electrically conductive shell fragment can be dismantled, can change when electrically conductive shell fragment is relatively poor, the maintenance of being convenient for, compare in moreover and weld on the circuit control board, the installation back does not have direct rigid connection with the circuit control board, avoids causing the influence or receive stress extrusion desoldering to the circuit control board when slip, installation.

It can be understood that, the first voltage detection end on the circuit control board is electrically connected between the main circuit input terminal and the switch assembly 120 to form one of the positive and negative voltage detection poles, the second voltage detection end on the circuit control board is connected with the power taking piece 200, and the power taking piece 200 is grounded, so that the two voltage detection terminals form a voltage difference, and the detection of the voltage of the circuit breaker is realized.

In an embodiment, referring to fig. 5, the breaker main body 100 is provided with a mounting post 150, and the conductive elastic piece is provided with a fixing hole, and is screwed with the mounting post 150 after passing through the fixing hole by a screw, so as to fasten the conductive elastic piece to the mounting post 150. In this embodiment, the mounting post 150 and the screw are used together to detachably mount the conductive elastic piece on the circuit breaker main body 100.

Further, one end of the mounting post 150 is fixed to one side wall of the circuit breaker main body 100, the other end of the mounting post passes through the circuit control board, and the other end of the mounting post 150 is provided with a screw hole screwed with the screw. In this embodiment, the conductive elastic sheet is located between the circuit control board and a side wall of the circuit breaker main body 100 adjacent to the circuit control board. In this manner, the mounting posts 150 also position the circuit panel and avoid interfering with the mounting of other components of the circuit breaker body 100, such as the switch assembly 120, the arc initiation assembly, and the like.

Further, the conductive elastic sheet is provided with a mounting plate 210, the mounting plate 210 is vertically connected with the conductive elastic sheet, the fixing hole is formed in the mounting plate 210, the surface of the conductive elastic sheet faces the side wall of the mounting column 150, and the mounting plate 210 is attached to one end, far away from the circuit control board, of the mounting column 150. This kind of mounting means, electrically conductive shell fragment can be dismantled, can change when electrically conductive shell fragment is relatively poor, the maintenance of being convenient for, compare in moreover and weld on the circuit control board, the installation back does not have direct rigid connection with the circuit control board, avoids causing the influence or receive stress extrusion desoldering to the circuit control board when slip, installation.

In an embodiment, the card slot 101 has a bottom wall and two opposite side walls connected to the bottom wall, an opening is formed at one end of each of the two side walls away from the bottom wall, the opening faces the bottom wall, and the conductive elastic sheet can be inserted into the card slot 101 from the bottom wall. The card slot 101 of the present embodiment penetrates the breaker body 100 in the thickness direction thereof, and thus the breaker body 100 can be easily attached to the guide rail 50. In this embodiment, the power extractor 200 may be disposed to extend from the bottom wall into the slot 101.

In this embodiment, a first through hole through which the conductive elastic piece passes is formed in a position of the bottom wall close to one of the side walls, a second through hole is formed in the side wall close to the first through hole, one end of the conductive elastic piece is fixed on the circuit control board, and the other end of the conductive elastic piece passes through the first through hole and then is inserted into the second through hole. Wherein, both ends of the conductive elastic sheet are located in the circuit breaker main body 100.

In this embodiment, further, the slot 101 is disposed in a trapezoidal shape from the opening to the bottom wall or the two side walls are disposed close to each other from the bottom wall to the opening. It can be understood that, in this embodiment, when the circuit breaker main body 100 is slidably mounted on the guide rail 50, the bottom wall and the two side walls are located at two sides of the guide rail 50 relatively, so as to form a limit position, and should not be separated, thereby ensuring the reliability after mounting.

In an embodiment, the power extractor 200 is disposed at an edge of the card slot 101, so that the power extractor 200 can be prevented from interfering with the installation of the breaker main body 100 and the guide rail 50 or causing poor sliding after installation.

In an embodiment, the bottom of the circuit breaker main body 100 has a first mounting seat and a second mounting seat, the first mounting seat and the second mounting seat are oppositely disposed, and the first mounting seat, the second mounting seat and the bottom of the circuit breaker main body 100 define the card slot 101 therebetween.

The power taking part 200 is arranged close to the first mounting seat or the second mounting seat, so that the power taking part 200 can be prevented from obstructing the installation of the breaker main body 100 and the guide rail 50, or the power taking part can not slide smoothly after being installed.

In an embodiment, the bottom of the circuit breaker main body 100 further has an arc outlet 102, and the arc outlet 102 is opened on the bottom wall of the card slot 101. The arc discharge hole 102 is disposed in the card slot 101, and can discharge the arc onto the guide rail 50 and flow into the ground wire, and avoid the influence on other elements caused by the other side surfaces of the circuit breaker main body 100.

The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A single-pole circuit breaker, comprising:

the circuit breaker comprises a circuit breaker main body, a circuit breaker main body and a circuit breaker main body, wherein the circuit breaker main body is provided with a main loop input terminal, a main loop output terminal and a switch assembly, the switch assembly is connected between the main loop input terminal and the main loop output terminal, a connecting line of the main loop input terminal, the switch assembly and the main loop output terminal is a main loop, and the switch assembly is used for controlling the connection or disconnection between the main loop input terminal and the main loop output terminal; the bottom of the breaker main body is provided with a clamping groove for the breaker main body to be arranged on a guide rail of distribution equipment;

2. The single pole circuit breaker as in claim 1, wherein said current pick-up member is a conductive spring.

3. The single-pole circuit breaker according to claim 2, wherein the locking slot has a bottom wall and two opposite side walls connected to the bottom wall, an opening is formed at an end of each of the two side walls away from the bottom wall, the opening faces the bottom wall, and the conductive elastic piece is inserted into the locking slot from the bottom wall.

4. The single-pole circuit breaker according to claim 3, wherein a first through hole is formed in a position of the bottom wall close to one of the side walls, through which the conductive elastic piece is inserted, and a second through hole is formed in the side wall close to the first through hole, one end of the conductive elastic piece is fixed to the circuit control board, and the other end of the conductive elastic piece is inserted into the second through hole after passing through the first through hole.

5. A single pole circuit breaker as claimed in claim 3, wherein said slot is trapezoidal in a direction from said opening to said bottom wall or said side walls are relatively close together in a direction from said bottom wall to said opening.

6. The single pole circuit breaker as in any one of claims 1-5, wherein the bottom of the circuit breaker body has a first mounting seat and a second mounting seat, the first and second mounting seats being oppositely disposed, the first and second mounting seats and the bottom of the circuit breaker body defining the card slot therebetween; the electricity taking piece is arranged close to the first mounting seat or the second mounting seat.

7. The single-pole circuit breaker according to claim 2, wherein the circuit breaker body is provided with a mounting post, and the conductive resilient piece is provided with a fixing hole, and is screwed with the mounting post after passing through the fixing hole by a screw, so as to fasten the conductive resilient piece to the mounting post.

8. The single pole circuit breaker as claimed in claim 7, wherein one end of said mounting post is fixed to a side wall of said breaker body, and the other end is disposed through said circuit control board, said other end of said mounting post being provided with a screw hole to which said screw is screw-coupled.

9. The single-pole circuit breaker according to claim 8, wherein the conductive spring plate is provided with a mounting plate, the mounting plate is vertically connected to the conductive spring plate, the fixing hole is formed in the mounting plate, a surface of the conductive spring plate faces a side wall of the mounting post, and the mounting plate is attached to an end of the mounting post away from the circuit board.

10. The single pole circuit breaker as in claim 1, wherein said first voltage detection terminal is electrically connected to said main circuit input terminal or main circuit output terminal;