CN216487933U

CN216487933U - Lightning protection circuit breaker

Info

Publication number: CN216487933U
Application number: CN202122889782.7U
Authority: CN
Inventors: 赵青; 王军军; 潘万军
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-10
Anticipated expiration: 2031-11-23

Abstract

The application provides a lightning protection circuit breaker belongs to low-voltage apparatus technical field, including the shell base, the integration has circuit breaker body and lightning protection device in the shell base, along the inlet wire direction the lightning protection device is located the breakpoint rear end of circuit breaker body, the input of lightning protection device with the moving contact electricity of circuit breaker body is connected. When a power supply line of the lightning protection circuit breaker is struck by lightning, two ends of the lightning protection device are conducted due to high-voltage breakdown, so that lightning current is discharged to the ground, and other devices in the circuit are protected. The embodiment of the application provides a lightning protection circuit breaker utilizes the lightning protection device to make the whole ability that has possessed the lightning protection of lightning protection circuit breaker, through integrated with lightning protection device and circuit breaker body, and the cost is practiced thrift simultaneously to convenient equipment.

Description

Lightning protection circuit breaker

Technical Field

The application relates to the technical field of low-voltage apparatuses, in particular to a lightning protection circuit breaker.

Background

The lightning protection type circuit breaker is used in occasions of lightning and overvoltage operation, can avoid damage to electronic equipment, information products and household appliances, and can possibly damage insulation of a circuit or even cause fire accidents if the lightning protection circuit breaker is not arranged in the occasions. The lightning protection circuit breaker can effectively absorb lightning surge, protect the safety of circuits and electric equipment, and improve the reliability of the protection function of the circuit breaker. The existing lightning protection circuit breaker has the disadvantages of complex structure, complex assembly and high cost.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a lightning protection circuit breaker, through the design that integrates, the equipment is convenient, practices thrift the cost.

The embodiment of the application is realized as follows:

an aspect of the embodiment of the application provides a lightning protection circuit breaker, and it includes the housing base, integrated circuit breaker body and lightning protection device in the housing base, along the inlet wire direction the lightning protection device is located the breakpoint rear end of circuit breaker body, the input of lightning protection device with the moving contact electricity of circuit breaker body is connected.

Optionally, the input end of the lightning arrester is electrically connected to the moving contact of the circuit breaker body through a wire or a wire row.

Optionally, the lightning protection device further comprises a circuit board, wherein the lightning protection device is provided with a dry contact, and the circuit board is electrically connected with the lightning protection device through the dry contact of the lightning protection device.

Optionally, the dry contact of the lightning protector is electrically connected to the circuit board through a female connector.

Optionally, the dry contact of the lightning protector is connected to the circuit board through a signal terminal.

Optionally, one end of the signal terminal forms a plug end, the other end of the signal terminal forms a clamping end, the signal terminal is plugged with the circuit board through the plug end, and the signal terminal clamps the dry contact of the lightning protection device through the clamping end.

Optionally, the dry contact of the lightning protector is electrically connected to the circuit board through a solder joint.

Optionally, the circuit board is further connected to a rear end feedback system, and the damaged state of the lightning arrester is fed back to the rear end feedback system through the circuit board.

Optionally, the lightning protection device with the quantity of circuit breaker body has a plurality ofly respectively, and is a plurality of lightning protection device, a plurality of circuit breaker body set up side by side respectively in the shell base, and is a plurality of lightning protection device and a plurality of circuit breaker body one-to-one connects.

Optionally, a set of correspondence the circuit breaker body with the lightning protection device is followed the inlet wire direction sets up, and is a plurality of lightning protection device, a plurality of the circuit breaker body perpendicular to the inlet wire direction is double-row setting.

The beneficial effects of the embodiment of the application include:

according to the lightning protection circuit breaker provided by the embodiment of the application, the circuit breaker body and the lightning protection device are integrated in the shell base, and are respectively integrated in the same shell base as independent modules to form the lightning protection circuit breaker; wherein, along lightning protection circuit breaker inlet wire direction, the lightning protection device is located the breakpoint rear end of circuit breaker body, and the input of lightning protection device and the moving contact electricity of circuit breaker body are connected, are favorable to the outage to overhaul and the circuit breaker body can play the guard action after the lightning protection device became invalid. When a lightning stroke occurs on a power supply line of the lightning protection circuit breaker, two ends of the lightning protection device are conducted due to high-voltage breakdown, so that lightning stroke current is discharged to the ground, and other devices in the circuit are protected. The lightning protection circuit breaker that this application embodiment provided utilizes the lightning protection device to make the whole ability that has possessed the lightning protection of lightning protection circuit breaker, through integrated with lightning protection device and circuit breaker body, and the cost is practiced thrift simultaneously to convenient equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a lightning protection circuit breaker according to an embodiment of the present application;

fig. 2 is an electrical connection schematic diagram of a lightning protection circuit breaker provided in an embodiment of the present application;

fig. 3 is one of schematic diagrams illustrating a connection manner between a lightning protection device and a circuit board of a lightning protection circuit breaker according to an embodiment of the present application;

fig. 4 is a second schematic view illustrating a connection mode between a lightning protection device and a circuit board of the lightning protection circuit breaker according to the embodiment of the present application;

FIG. 5 is an enlarged view of a portion of FIG. 4;

fig. 6 is a third schematic view of a connection mode between a lightning protection device and a circuit board of the lightning protection circuit breaker according to the embodiment of the present application.

101-housing base; 102-lightning protection; 1021-dry junction; 103-a circuit breaker body; 103 a-breakpoint; 104-a circuit board; 105-female; 1051-a plug terminal; 106-signal terminals; 1061-a plug end; 1062-a clamping end; f-the wire inlet direction; i-a power supply input; an O-load terminal; an In-PE end or an N-phase lightning protection device input end.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The lightning protection circuit breaker is generally used in the occasion of thunder and lightning and operation overvoltage, can effectively discharge thunder and lightning surge, protects the safety of circuit and consumer, improves the reliability of circuit breaker protect function. The existing lightning protection circuit breaker has the disadvantages of complex structure, inconvenient assembly and high cost.

In order to solve the above problem, the embodiment of the present application provides a lightning protection circuit breaker, wherein a lightning protector 102 and a circuit breaker body 103 are integrated on a housing base 101 of the circuit breaker. Referring to fig. 1 specifically, the lightning protection circuit breaker provided in the embodiment of the present application includes a housing base 101, a circuit breaker body 103 and a lightning protection device 102 are integrated in the housing base 101, the lightning protection device 102 is located at the rear end of a break point 103a of the circuit breaker body 103 along a line incoming direction F, and an input end of the lightning protection device 102 is electrically connected to a moving contact of the circuit breaker body 103.

The circuit breaker body 103 has the structure and the function of a general circuit breaker, the lightning protection circuit breaker provided by the embodiment of the application has the lightning protection device 102 besides the circuit breaker body 103, and the lightning protection device 102 and the circuit breaker body 103 are integrated in the housing base 101. The lightning protection device 102 is used for lightning protection, and is an electronic device for providing safety protection for various electronic devices, instruments and meters, and communication lines. When the peak current or voltage is suddenly generated in the electrical loop or the communication line due to external interference, the lightning protector 102 can conduct and shunt in a very short time, so as to avoid damage of surge to other equipment in the loop, and protect the surge caused by indirect lightning, direct lightning or other transient overvoltage. When the lightning protection device is applied to a circuit breaker, the input end of the lightning protection device 102 is electrically connected with the moving contact of the circuit breaker body 103 so as to protect the rear-end load.

When the circuit breaker body 103 and the lightning protection device 102 are integrated In the housing base 101, along the wire incoming direction F of the circuit breaker, the lightning protection device 102 is located at the rear end of a break point 103a of the circuit breaker body 103, the break point 103a is a breaking point of the circuit breaker body 103, a circuit diagram of the circuit diagram is shown In fig. 2, a power input end I is connected with the circuit breaker body 103, the lightning protection device 102 is located at the rear end of the break point 103a, and an input end of the lightning protection device 102 is connected with a load end O, an output end PE end or an N-phase lightning protection device input end In.

According to the lightning protection circuit breaker provided by the embodiment of the application, the circuit breaker body 103 and the lightning protection device 102 are integrated in the shell base 101, and the circuit breaker body 103 and the lightning protection device 102 are respectively integrated in the same shell base 101 as independent modules to form the lightning protection circuit breaker; wherein, along lightning protection circuit breaker inlet wire direction F, lightning protection device 102 is located the breakpoint 103a rear end of circuit breaker body 103, and the input of lightning protection device 102 and the moving contact electricity of circuit breaker body 103 are connected, are favorable to the outage to overhaul and the circuit breaker body 103 can play the guard action after lightning protection device 102 became invalid. When a lightning stroke occurs on a power supply line of the lightning protection circuit breaker, two ends of the lightning protection device 102 are conducted due to high voltage breakdown, so that lightning stroke current is discharged to the ground, and other devices in the circuit are protected. The lightning protection circuit breaker that this application embodiment provided utilizes lightning protection device 102 to make the whole ability that has possessed the lightning protection of lightning protection circuit breaker, through integrated with lightning protection device 102 and circuit breaker body 103, convenient equipment practices thrift the cost simultaneously.

Further, the input end of the lightning arrester 102 is electrically connected to the movable contact of the circuit breaker body 103 through a wire or a line bank.

The input end of the lightning arrester 102 and the contact of the circuit breaker body 103 are connected by a wire or a wire row, wherein the wire row may be a copper row or other conductive wire row.

On the other hand, the lightning protection circuit breaker of the embodiment of the present application further includes a circuit board 104, the lightning protection device 102 has a dry contact 1021, and the circuit board 104 is electrically connected to the lightning protection device 102 through the dry contact 1021 of the lightning protection device 102.

The dry contact 1021 of the lightning protector 102 corresponds to the signal terminal 106 of the lightning protector 102, and the lightning protector 102 and the circuit board 104 are electrically connected through the dry contact 1021 of the lightning protector 102.

In the embodiment of the present application, three connection modes of the dry contact 1021 of the lightning protector 102 and the circuit board 104 are shown, and in a first implementation mode of the present application, please refer to fig. 3, the dry contact 1021 of the lightning protector 102 is electrically connected with the circuit board 104 through the female connector 105. The two ends of the female head 105 are respectively provided with a jack and a plug terminal 1051, the size of the jack of the female head 105 is consistent with the position of a dry contact 1021 of the lightning protection device 102, the dry contact 1021 of the lightning protection device 102 is correspondingly welded to the jack of the female head 105, and the plug terminal 1051 of the female head 105 is correspondingly welded to a via hole of the circuit board 104, specifically, soldering can be performed, so that a signal of the dry contact 1021 of the lightning protection device 102 is inserted into the circuit board 104 in a mode of reversely buckling the female head 105 to be connected with the circuit board 104, the connection mode is convenient to operate and convenient for automatic assembly.

Referring to fig. 4, in a second implementation manner of the present application, the dry contact 1021 of the lightning protector 102 is connected to the circuit board 104 through the signal terminal 106. Wherein, a plug end 1061 is formed at one end of the signal terminal 106, a clamping end 1062 is formed at the other end of the signal terminal 106, the plug end 1061 is conducted with the clamping end 1062, the signal terminal 106 is welded, specifically soldered, to a corresponding via hole on the circuit board 104 through the plug end 1061, and the signal terminal 106 clamps the dry contact 1021 of the lightning arrester 102 through the clamping end 1062.

Illustratively, as shown in fig. 5, the clamping end 1062 has two opposing clips that clamp the dry contact 1021 of the lightning protector 102 therebetween to form an electrical connection with the dry contact 1021; the plug port 1061 is inserted into the circuit board 104 to be electrically connected to the circuit board 104, so that the dry contact 1021 of the lightning arrester 102 is connected to the circuit board 104 through the signal terminal 106, and the connection manner of the signal terminal 106 is flexible, which is beneficial to the assembly efficiency and the connection reliability.

Referring to fig. 6, in a third implementation manner of the present application, the dry contact 1021 of the lightning protector 102 is electrically connected to the circuit board 104 through a solder joint formed by soldering. The circuit board 104 is connected to the dry contact 1021 of the lightning protection device 102 by welding, and reliable connection is achieved by welding, and the solder joint needs to have a conductive function, and specifically, soldering can be adopted, so that the circuit board 104 and the dry contact 1021 of the lightning protection device 102 form electrical connection. Of course, other materials may be used for soldering, as long as the dry contact 1021 between the circuit board 104 and the lightning protector 102 can be electrically connected.

Compared with the welding mode, the lightning protection device 102 and the circuit board 104 are connected in the first two modes and are connected in the plug-in mode, and welding slag is not generated.

It should be understood that the above are only three illustrative ways for the electrical connection between the dry contact 1021 and the circuit board 104 of the lightning protector 102, and the electrical connection between the dry contact 1021 and the circuit board 104 of the lightning protector 102 may also have other forms, and the three implementations are not limited to the above, and those skilled in the art can select the arrangement according to specific needs.

In addition, in order to monitor the state of the lightning arrester 102, the circuit board 104 is also connected to a back-end feedback system, and the damage state of the lightning arrester 102 is fed back to the back-end feedback system through the circuit board 104.

The back-end feedback system can monitor the state of the lightning protection device 102, mainly the damage state of the lightning protection device 102, so as to prevent the safety performance of the circuit breaker body 103 from being affected by the damage and failure of the lightning protection device 102. The data of the lightning arrester 102 is transmitted to the back-end feedback system through the circuit board 104, and after the back-end feedback system receives the data of the lightning arrester 102, the data can be compared according to preset theoretical data to judge whether the lightning arrester 102 is damaged. If damage is found, the lightning protector 102 needs to be replaced to protect the circuit breaker body 103.

When the lightning protection device 102 is replaced, the breaker body 103 can be disconnected, the power supply of the lightning protection device 102 is cut off, and the replacement without electricity is safer.

On the other hand, the quantity of lightning protection circuit breaker that this application embodiment provided, lightning protection device 102 and circuit breaker body 103 has a plurality ofly respectively to be applied to multistage product, a plurality of lightning protection devices 102, a plurality of circuit breaker body 103 set up respectively side by side in shell base 101, and a plurality of lightning protection devices 102 and a plurality of circuit breaker body 103 one-to-one are connected.

One lightning protection device 102 corresponds to one circuit breaker body 103, and a plurality of groups of lightning protection devices 102 and circuit breaker body 103 are arranged in the shell base 101 and arranged side by side.

Exemplarily, a set of corresponding circuit breaker bodies 103 and lightning protection devices 102 are arranged along the incoming line direction F, and the plurality of lightning protection devices 102 and the plurality of circuit breaker bodies 103 are arranged in a double row perpendicular to the incoming line direction F.

The housing base 101 is a cuboid, the incoming line direction F is the length direction of the cuboid, a set of corresponding circuit breaker bodies 103 and lightning protection devices 102 are arranged along the length direction of the housing base 101, a plurality of lightning protection devices 102 and a plurality of circuit breaker bodies 103 are arranged along the width direction of the housing base 101, wherein the plurality of lightning protection devices 102 form one row, and the plurality of circuit breaker bodies 103 form one row to form a double-row structure.

In summary, the lightning protection circuit breaker provided by the embodiment of the present application integrates the lightning protection device 102 and the circuit breaker body 103 in the cavity of the same housing base 101, so that the product performance integration level is higher, the occupied space is smaller, and the product installation density is higher; the lightning protection device 102 is positioned behind a break point 103a of the circuit breaker body 103, so that the circuit breaker body 103 can play a role in protection after power failure maintenance and failure of the lightning protection device 102 are facilitated; the breaker body 103 undertakes short circuit overload protection of rear-end load equipment and also undertakes short circuit protection to the ground after the lightning protector 102 is damaged; the dry contact 1021 displayed by the state of the lightning protection device 102 is connected to the circuit board 104 and can be fed back to the back-end feedback system in real time to monitor the state of the lightning protection device 102, and if the lightning protection device 102 is found to be damaged, the replacement is needed; when the lightning protection device 102 is replaced, the breaker body 103 is disconnected, and the power supply of the lightning protection device 102 is cut off, so that the replacement safety is ensured; the dry contact 1021 of the lightning protection device 102 can be connected to the circuit board 104 by adopting the female connector 105, the signal terminal 106 or welding, which is convenient for assembly and saves cost.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The lightning protection circuit breaker is characterized by comprising a shell base (101), wherein a circuit breaker body (103) and a lightning protection device (102) are integrated in the shell base (101), the lightning protection device (102) is located at the rear end of a breaking point (103a) of the circuit breaker body (103) along a wire inlet direction (F), and the input end of the lightning protection device (102) is electrically connected with a moving contact of the circuit breaker body.

2. The lightning protection circuit breaker according to claim 1, characterized in that the input of the lightning protector (102) is electrically connected to the movable contact of the circuit breaker body (103) by a wire or a line bank.

3. The lightning protection circuit breaker according to claim 2, further comprising a circuit board (104), the lightning protector (102) having a dry contact (1021) thereon, the circuit board (104) being electrically connected to the lightning protector (102) through the dry contact (1021) of the lightning protector (102).

4. The lightning protection circuit breaker according to claim 3, wherein the dry contact (1021) of the lightning protector (102) is electrically connected to the wiring board (104) through a female connector (105).

5. The lightning protection circuit breaker according to claim 3, characterized in that the dry contact (1021) of the lightning protector (102) is accessed to the wiring board (104) through a signal terminal (106).

6. The lightning protection circuit breaker according to claim 5, wherein one end of the signal terminal (106) forms a plug end (1061), the other end of the signal terminal (106) forms a clamping end (1062), the signal terminal (106) is plugged with the circuit board (104) through the plug end (1061), and the signal terminal (106) clamps the dry contact (1021) of the lightning protector (102) through the clamping end (1062).

7. The lightning protection circuit breaker according to claim 3, characterized in that the dry contact (1021) of the lightning protector (102) is electrically connected to the wiring board (104) by a solder joint.

8. The lightning protection circuit breaker according to claim 3, characterized in that the wiring board (104) is further connected to a back end feedback system, and the damage state of the lightning protector (102) is fed back to the back end feedback system through the wiring board (104).

9. The lightning protection circuit breaker according to any one of claims 1-8, wherein the number of the lightning protectors (102) and the number of the circuit breaker bodies (103) are respectively multiple, a plurality of the lightning protectors (102) and the plurality of the circuit breaker bodies (103) are respectively arranged in the housing base (101) side by side, and the plurality of the lightning protectors (102) and the plurality of the circuit breaker bodies (103) are connected in a one-to-one correspondence.

10. The lightning protection circuit breaker according to claim 9, characterized in that a set of corresponding said circuit breaker body (103) and said lightning protection device (102) are arranged along said incoming line direction (F), and a plurality of said lightning protection device (102) and a plurality of said circuit breaker body (103) are arranged in double rows perpendicular to said incoming line direction (F).