CN114355008A - breaker - Google Patents

Abstract

The invention provides a circuit breaker, and relates to the technical field of electrical equipment. The circuit breaker includes: circuit breaker body and voltage sampling structure, voltage sampling structure includes: the device comprises a controller, a switching circuit board, a mutual inductor and at least one conductor; each electric conductor respectively penetrates through the shell of the mutual inductor, one end of each electric conductor extends out of the first side of the shell of the mutual inductor and is electrically connected with the switching circuit board in a contact mode, and the other end of each electric conductor extends out of the second side of the shell of the mutual inductor and is electrically connected with the electric wiring terminal in the circuit breaker body in a contact mode; the adapter circuit board is electrically connected with the controller contact, so that the controller samples and analyzes the voltage transmitted by the electric conductor and the adapter circuit board. Wear to locate the casing of mutual-inductor with the electric conductor, the electric conductor contacts electrical connection with switching circuit board, power wiring end respectively, and switching circuit board and controller contact electrical connection have reduced the setting of voltage sampling line, have simplified and have walked the line structure for the installation of circuit breaker, dismantlement are more convenient.

Description

breaker

technical field

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

Background technique

Circuit breakers can be used to distribute electrical energy and protect power lines and motors. With the development of science and technology, circuit breakers have more and more functions, and circuit breakers with voltage acquisition function are also widely welcomed.

In the related art, the voltage sampling line drawn from the controller of the circuit breaker is connected to the circuit board of the circuit breaker, and then the voltage sampling line drawn from the circuit board of the circuit breaker is connected to the power outlet terminal or the power input terminal, so that the controller of the circuit breaker can connect to the circuit board of the circuit breaker. Voltage sampling analysis.

However, in the related art, the wiring structure of the voltage sampling line is complicated, and there is a problem that it is inconvenient to install and disassemble the circuit breaker.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a circuit breaker in view of the above-mentioned deficiencies in the prior art, so as to solve the problems in the related art that the wiring structure of the voltage sampling line is complicated, and the installation and disassembly of the circuit breaker are inconvenient.

To achieve the above purpose, the technical solutions adopted in the embodiments of the present invention are as follows:

In a first aspect, an embodiment of the present invention provides a circuit breaker, comprising: a circuit breaker body and a voltage sampling structure, wherein the voltage sampling structure includes: a controller, a switching circuit board, a housing of a transformer, and at least one electrical conductor ;

Each of the conductors is respectively penetrated in the shell of the transformer, and one end of the conductor protrudes from the first side of the shell of the transformer, and is in contact and electrically connected with the switching circuit board, The other end of the electrical conductor protrudes from the second side of the housing of the transformer, and is in contact and electrically connected with the power terminal in the circuit breaker body;

The switching circuit board is in contact and electrically connected with the controller, so that the controller samples and analyzes the voltage transmitted through the electrical conductor and the switching circuit board.

Optionally, the shell of the transformer is arranged in the accommodating cavity of the base of the circuit breaker body, and the other end of the conductor protrudes from the second side of the shell of the transformer, and It is electrically connected to the power terminal provided on the bottom of the base.

Optionally, a first preset position of the bottom of the base is provided with a through hole, and the conductive member is arranged in the through hole, and communicates with the electric power through a voltage sampling line arranged in the accommodating cavity. Terminal electrical connection;

The other end of the conductor protrudes from a second preset position corresponding to the first preset position on the second side of the housing of the transformer, so that the other end of the conductor is connected to the conductive member Contact electrical connections.

Optionally, the first side of the shell of the transformer and the second side of the shell of the transformer are opposite sides of the shell of the transformer.

Optionally, the controller is provided with at least one socket, and the switching circuit board is provided with at least one port, and the socket and the port are pluggable and connected, so that the controller and the The switching circuit board is electrically connected through the row plug contacts.

Optionally, the transfer circuit board is further provided with: a control switch; the connection contacts of the conductors on the transfer circuit board are electrically connected to the port through the control switch, so as to pass the control switch. The on-off of the control switch controls on-off of the voltage transmission between the switching circuit board and the controller.

Optionally, the control switch is a contact module, and the switching circuit board has contacts;

When the contact module performs the closing operation, the electrical connection between the connection contact and the port is conducted;

When the contact module performs an opening operation, the electrical connection between the connection contact and the port is disconnected.

Optionally, the contacts include: a set of contacts;

the contact is electrically connected to any of the connection contact or the port;

When the contact module performs the closing operation, it is electrically connected to the other one of the connection contact or the port, so that the electrical connection between the connection contact and the port is conducted;

When the contact module performs an opening operation, it is electrically disconnected from the other one of the connecting contact or the port, so that the electrical connection between the connecting contact and the port is disconnected.

Optionally, the contacts include: a first group of contacts and a second group of contacts;

The first group of contacts is electrically connected with the connection contacts, and the second group of contacts is electrically connected with the port;

When the contact module performs the closing operation, the first group of contacts is electrically connected with the second group of contacts, so that the electrical connection between the connection contacts and the port is conducted;

When the contact module performs an opening operation, the first group of contacts is electrically disconnected from the second group of contacts, so that the electrical connection between the connection contacts and the port is disconnected;

Optionally, the circuit breaker further includes: an operation part;

One end of the operation part is connected with the contact module, and the other end of the operation part penetrates out of the casing of the circuit breaker.

The beneficial effects of the present invention are: the embodiment of the present application provides a circuit breaker, the circuit breaker includes: a circuit breaker body and a voltage sampling structure, and the voltage sampling structure includes: a controller, a switching circuit board, a transformer, and at least one conductor ; Each conductor is respectively penetrated in the shell of the transformer, one end of the conductor protrudes from the first side of the shell of the transformer, and is in contact with the switching circuit board, and the other end of the conductor is connected from the transformer's shell. The second side of the housing protrudes and is in contact and electrical connection with the power terminal in the circuit breaker body; the transfer circuit board is in contact and electrical connection with the controller, so that the controller is connected to the electric power transmitted through the conductor and the transfer circuit board. The voltage is sampled and analyzed. The conductor is inserted into the shell of the transformer, one end of the conductor is electrically connected to the switching circuit board, the other end of the conductor is electrically connected to the power terminal, and the switching circuit board is electrically connected to the controller. While realizing the voltage sampling function, the setting of the voltage sampling line is reduced, the wiring structure of the circuit breaker is simplified, and the installation and disassembly of the circuit breaker are more convenient.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic diagram of the matching structure of a controller of a circuit breaker, an adapter circuit board, and a housing of a transformer according to an embodiment of the application;

2 is a schematic structural diagram of a casing of a transformer provided by an embodiment of the present application;

3 is a schematic structural diagram of a casing of a transformer provided by an embodiment of the present application;

4 is a schematic structural diagram of a circuit breaker according to an embodiment of the present application;

5 is a schematic structural diagram of a base provided by an embodiment of the present application;

6 is a schematic structural diagram of a base bottom provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a switching circuit board provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a control switch according to an embodiment of the present application.

Reference number: 101-controller; 102-switching circuit board; 1021-port; 103-transformer housing; 1031-first side; 1032-second side; 104-conductor; 105-base; 1051-bottom of base; 1052-accommodating cavity; 1053-through hole; 106-conductive part; 107-voltage sampling line; 108-control switch; 1081-contact module; 1082-contact; 109-connection contact ; 110 - power input end; 111 - power outlet end.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments.

Thus, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

In the description of this application, it should be noted that if the terms “upper”, “lower”, etc. indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings, or it is customary when the product of the application is used. The orientation or positional relationship of the placement is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as affecting the application. limits.

In addition, the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

It should be noted that the features in the embodiments of the present application may be combined with each other under the condition of no conflict.

1 is a schematic diagram of the matching structure of a controller of a circuit breaker, an adapter circuit board, and a housing of a transformer provided by an embodiment of the present invention, and FIGS. 2 and 3 are a schematic diagram of a housing of a transformer provided by an embodiment of the present invention. Schematic diagram of the structure, as shown in Figures 1, 2 and 3, the circuit breaker includes: a circuit breaker body and a voltage sampling structure, the voltage sampling structure includes: a controller 101, a switching circuit board 102, a transformer housing 103, at least one Conductor 104 .

Wherein, each conductor 104 is respectively penetrated in the housing 103 of the transformer, and one end of the conductor 104 protrudes from the first side 1031 of the housing 103 of the transformer, and is in contact with the switching circuit board 102 and electrically connected to conduct electricity. The other end of the body 104 protrudes from the second side 1032 of the housing 103 of the transformer and is in electrical contact with the power terminals in the circuit breaker body.

In addition, the switch circuit board 102 and the controller 101 are in contact and electrically connected, so that the controller 101 samples and analyzes the voltage transmitted through the conductor 104 and the switch circuit board 102 .

Wherein, the conductor 104 may be a metal conductor 104 , and certainly may be other types of devices capable of conducting electricity, which are not specifically limited in this embodiment of the present application. As shown in FIGS. 2 and 3 , the number of the conductors 104 may be 4. It should be understood that the number of the conductors 104 may also be 1, 2, 3, etc., which is not specifically limited in this embodiment of the present application .

It should be noted that, when the number of conductors 104 is multiple, each conductor 104 is independently penetrated in the housing 103 of the transformer, and the housing 103 of the transformer may be provided with a transformer. An insulating layer may be provided on the outer wall of each conductor 104 so as to stably transmit the voltage through the conductor 104 . The two ends of each conductor 104 are not provided with insulating layers, so that the corresponding switching circuit board 102 and the power terminals are in contact and electrically connected.

In the embodiments of the present application, the contact electrical connection obviously refers to the electrical connection achieved by direct contact, not the electrical connection achieved through wires. For example, the electrical connection achieved by welding, or the electrical connection achieved by the conductive interface, of course, may also be other types of electrical connections, which are not specifically limited in this embodiment of the present application.

In some embodiments, the power terminal may be: the power input terminal 110 or the power outlet terminal 111 , the power terminal in the circuit breaker may be connected to the power grid or the power terminals of other circuit breakers, then the power terminal in the circuit breaker There is a voltage on it, and the voltage is transmitted to the switching circuit board 102 through one end and the other end of the conductor 104. The switching circuit board 102 can process the voltage to obtain the processed voltage, and send the processed voltage to the controller 101. voltage, the controller 101 can perform analysis according to the processed voltage, so as to realize the function of voltage sampling and analysis of the circuit breaker.

In addition, the shape of the conductor 104 may be a long strip, and the cross-sectional shape of the conductor 104 may be a circle, a triangle or a rectangle, or other geometric shapes, which are not specifically limited in this embodiment of the present application .

In summary, the embodiments of the present application provide a circuit breaker, the circuit breaker includes: a circuit breaker body and a voltage sampling structure, and the voltage sampling structure includes: a controller 101 , a switching circuit board 102 , a transformer, and at least one conductor 104; each conductor 104 is respectively penetrated in the housing 103 of the transformer, one end of the conductor 104 protrudes from the first side 1031 of the housing 103 of the transformer, and is in contact with the switching circuit board 102 for electrical connection, conducting electricity. The other end of the body 104 protrudes from the second side 1032 of the housing 103 of the transformer, and is electrically connected to the power terminals in the circuit breaker body; the switch circuit board 102 is electrically connected to the controller 101 so that the control The device 101 samples and analyzes the voltage transmitted through the conductor 104 and the switching circuit board 102 . The conductor 104 is passed through the housing 103 of the transformer, one end of the conductor 104 is in contact and electrically connected with the switching circuit board 102, and the other end of the conductor 104 is in contact and electrically connected with the power terminal, and the switching circuit board 102 and The controller 101 is in contact with the electrical connection, while realizing the voltage sampling function, the setting of the voltage sampling line 107 is reduced, the wiring structure of the circuit breaker is simplified, and the installation and disassembly of the circuit breaker are more convenient.

Optionally, the transformer is arranged in the accommodating cavity 1052 of the base 105 of the circuit breaker body, and the other end of the conductor 104 protrudes from the second side 1032 of the shell 103 of the transformer, and is connected to the bottom 1051 of the base. Set of power terminals are electrically connected.

FIG. 4 is a schematic structural diagram of a circuit breaker provided by an embodiment of the application, and FIG. 5 is a schematic structural diagram of a base 105 provided by an embodiment of the application. As shown in FIG. 4 , the circuit breaker body includes: a base 105, As shown in FIG. 5 , the base 105 is provided with an accommodating cavity 1052 . As shown in FIG. 4 , the adapter circuit board 102 , the shell 103 of the transformer, and the transformer located in the shell of the transformer can all be arranged in the accommodating cavity 1052 . In addition, the controller 101 may be disposed in the accommodating cavity 1052, and of course, may also be disposed outside the accommodating cavity 1052, which is not specifically limited in this embodiment of the present application.

It should be noted that when the other end of the conductor 104 protrudes from the second side 1032 of the housing 103 of the transformer, it can be directly contacted and electrically connected with the conductive part provided on the power terminal; When the other end protrudes from the second side 1032 of the housing 103 of the transformer, it can be electrically connected to the conductive part provided at the bottom of the base 105, and the conductive part is electrically connected to the power outlet end 111. Both methods are feasible. The embodiment does not specifically limit this.

Optionally, as shown in FIG. 5 , a first preset position of the bottom 1051 of the base is provided with a through hole 1053 , and FIG. 6 is a schematic structural diagram of the bottom 1051 of the base provided in an embodiment of the present application, as shown in FIG. 6 . , the conductive member 106 is arranged in the through hole 1053 and is electrically connected to the power terminal through the voltage sampling line 107 arranged in the accommodating cavity 1052 . The other end of the conductor 104 protrudes from the second preset position corresponding to the first preset position on the second side 1032 of the housing 103 of the transformer, so that the other end of the conductor 104 is in contact with the conductor 106 and electrically connected .

In addition, each conductive member 106 is connected to a corresponding power terminal through an independent voltage sampling line 107 , and the power terminal may be: at least one power input terminal 110 or at least one power outlet terminal 111 . The number of power input terminals 110 and power outlet terminals 111 can be the same, the number of conductors 104, conductive parts 106, and through holes 1053 can be the same, and the number of conductors 104, conductive parts 106, and through holes 1053 can be greater than or equal to the power input Number of wire ends 110.

In the embodiment of the present application, the cross-sectional shape of the conductive member 106 is the same as that of the through hole 1053 , and the cross-sectional size of the conductive member 106 is smaller than that of the through hole 1053 . The projected area of the second preset position where the other end of the conductor 104 protrudes from the second side 1032 of the transformer housing 103 coincides with the area where the first preset position of the bottom 1051 of the base is located.

In some embodiments, the conductive member 106 is electrically connected to the power input terminal 110 or the power outlet terminal 111 through the voltage sampling line 107 . As shown in FIG. 6 , the conductive member 106 is in electrical contact with the power input terminal 110 in the circuit breaker body. when connecting. The voltage at the power input terminal 110 is transmitted to the controller 101 through the voltage sampling line 107, the conductive member 106, the conductor 104, and the switching circuit board 102, so that the controller 101 can sample the voltage at the power input terminal 110. analyze.

Similarly, when the conductive member 106 is in electrical contact with the power outlet 111 in the circuit breaker body. The voltage at the power outlet 111 is transmitted to the controller 101 through the voltage sampling line 107 , the conductive member 106 , the conductor 104 , and the switching circuit board 102 , so that the controller 101 can sample and analyze the voltage at the power outlet 111 . In addition, the voltage outlet terminal may also be provided with a cover plate, and of course, the voltage input terminal may also be provided with a cover plate.

In addition, as shown in FIG. 6 , the power input terminal 110 is arranged at one end of the bottom portion 1051 of the base, and the power outlet terminal 111 is arranged at the other end of the bottom portion of the base 105 .

It should be noted that the number of power input terminals 110 , power outlet terminals 111 , and conductors 104 can be determined according to the power used by the circuit breaker. For example, when the power used by the circuit breaker body is single-phase power, the power input terminals The number of the terminal 110, the power outlet terminal 111, and the conductor 104 can all be 1; when the power used by the circuit breaker body is three-phase power, the number of the power inlet terminal 110, the power outlet terminal 111, and the conductor 104 can all be 1. 3; When the electricity used by the circuit breaker body is four-phase electricity, the number of the power input terminal 110 , the power outlet terminal 111 , and the electrical conductors 104 may all be four.

The conductive member 106 may be a metal member, of course, may also be other types of conductive devices, which are not specifically limited in this embodiment of the present application.

In a possible implementation manner, the conductive member 106 can be fixed in the corresponding through hole 1053, the conductive member 106 and the voltage sampling line 107 can be welded, and the other end of the conductive member 106 and the conductor 104 can also be welded. Of course, the conductor 104 may be a hollow structure, and the outer wall of the conductor 106 and the inner wall of the conductor 104 may be provided with mutually matching threads to electrically connect the conductor 104 and the conductor 106 . In addition, the conductive member 106 may be a hollow structure, and the outer wall of the conductive member 104 and the inner wall of the conductive member 106 may be provided with mutually matched threads to contact and electrically connect the conductive member 104 and the conductive member 106 .

Optionally, as shown in FIGS. 2 and 3 , the first side 1031 of the housing 103 of the transformer and the second side 1032 of the housing 103 of the transformer are opposite sides of the housing 103 of the transformer.

In some embodiments, the first side 1031 of the transformer housing 103 may be the top of the transformer housing 103 , and the second side 1032 of the transformer housing 103 may be the bottom of the transformer housing 103 .

Of course, the first side 1031 and the second side 1032 can also be the sides of the housing 103 of the transformer, that is, not the bottom and the top, and the corresponding switching circuit board 102 and power terminals can be changed accordingly to ensure that the conductors 104 One end of the conductor 104 is in electrical contact with the switching circuit board 102, and the other end of the conductor 104 is in electrical contact with the power terminal, which is not specifically limited in this embodiment of the present application.

Optionally, the controller 101 is provided with at least one socket. As shown in FIG. 2 , at least one port 1021 is provided on the switching circuit board 102, and the socket and the port 1021 can be pluggably connected, so that the controller 101 and the port 1021 can be pluggable and connected. The switching circuit board 102 is electrically connected through the socket contacts.

The projection area of the socket set on the controller 101 coincides with the area where the port 1021 set on the corresponding switch circuit board 102 is located, and the socket and the port 1021 are adapted to each other to realize pluggable connection, thereby realizing the controller. 101 is electrically connected to the contacts of the switching circuit board 102 . Of course, the controller 101 and the switch circuit board 102 can also be electrically connected in other ways, such as welding.

In addition, the sockets are arranged on the side of the controller 101 close to the adapter circuit board 102, and the ports 1021 are arranged on the side of the adapter circuit board 102 close to the controller 101. When the number of sockets and ports 1021 are multiple, The sockets can be evenly distributed on the controller 101, and the ports 1021 can be evenly distributed on the adapter circuit board 102, so as to improve the stability of the electrical connection between the controller 101 and the adapter board.

It should be noted that the switching circuit board 102 in this application document may be a PCB (Printed circuitboards, printed circuit board), and the port 1021 may be provided on the PCB.

Optionally, FIG. 7 is a schematic structural diagram of a switching circuit board 102 according to an embodiment of the present application. As shown in FIGS. 1 , 4 and 7 , the switching circuit board 102 is further provided with a control switch 108 .

The connection contact 109 of the conductor 104 on the switching circuit board 102 is electrically connected to the port 1021 through the control switch 108, so as to control the voltage between the switching circuit board 102 and the controller 101 through the on-off of the control switch 108 transmission on and off.

In addition, the contacts of the switching circuit board 102 and the conductor 104 are electrically connected, the connecting contacts 109 of the two can be located on the switching circuit board 102 , and the control switch 108 can be connected between the connecting contacts 109 and the port 1021 . When the control switch 108 is closed, the connection between the contact 109 and the port 1021 is conducted, and the control circuit board and the controller 101 are also conducted; when the control switch 108 is opened, the connection between the contact 109 and the port 1021 is disconnected , the control circuit board and the controller 101 are also disconnected.

The electrical connection between the connection contact 109 and the control switch 108 and the electrical connection between the control switch 108 and the port 1021 can all be integrated inside the PCB, which can reduce the external wiring of the circuit breaker.

It should be noted that the circuit breaker often needs to undergo a withstand voltage test to ensure that the withstand voltage quality of the circuit breaker is qualified. In the related art, when performing the withstand voltage test on the circuit breaker, it is necessary to manually disassemble the multiple connected voltage sampling lines 107, and then input high voltages in opposite directions, and then perform the withstand voltage test on the circuit breaker, which is inconvenient for manual operation and causes inconvenience. It is convenient for the withstand voltage test of the circuit breaker.

In the embodiment of the present application, a control switch 108 is set on the switching circuit board 102, and the on-off of the voltage transmission between the switching circuit board 102 and the controller 101 can be controlled by manually controlling the switch 108. After the withstand voltage test is performed and the control switch 108 is turned off, the voltage transmission between the switching circuit board 102 and the controller 101 is disconnected, and then the circuit breaker can be subjected to a withstand voltage test. When the circuit breaker pre-implements the function of voltage sampling and analysis, the control switch 108 is closed, and the voltage transmission between the switching circuit board 102 and the controller 101 is turned on, and the voltage at the power terminal can pass through the conductor 106, the conductor 104, The circuit adapter board is transmitted to the controller 101 so that the controller 101 can perform voltage sampling and analysis.

Of course, the control switch 108 can also be electrically connected to the controller 101 , and the control switch 108 can be opened or closed through a control signal output by the controller 101 , so that the automatic control of the control switch 108 can be realized. This embodiment of the present application does not specifically limit this.

Optionally, FIG. 8 is a schematic structural diagram of a control switch 108 according to an embodiment of the present application. The control switch 108 is a contact module 1081 , and the switching circuit board 102 has contacts 1082 .

Wherein, when the contact module 1081 performs the closing operation, the electrical connection between the connecting contact 109 and the port 1021 is conducted; when the contact module 1081 performs the opening operation, the electrical connection between the connecting contact 109 and the port 1021 is made conductive. Disconnect.

It should be noted that when the contact module 1081 is performing the closing operation, the control switch 108 is closed, and the electrical connection between the connection contact 109 and the port 1021 is conducted, thereby making the connection between the controller 101 and the switching circuit board 102 conductive. The electrical connection is turned on; when the contact module 1081 performs the opening operation, the control switch 108 is disconnected, and the electrical connection between the connecting contact 109 and the port 1021 is disconnected, so that the connection between the controller 101 and the switching circuit board 102 is obtained. The electrical connection is disconnected.

Optionally, the contacts 1082 include: a set of contacts.

Wherein, the contact 1082 is electrically connected to any one of the connection contact 109 or the port 1021; when the contact module 1081 performs the closing operation, it is electrically connected to the other of the connection contact 109 or the port 1021, so that the connection contact The electrical connection between 109 and the port 1021 is turned on; when the contact module 1081 performs the opening operation, it is electrically disconnected from the other one of the connecting contact 109 or the port 1021, so that the electrical connection between the connecting contact 109 and the port 1021 is disconnected. Disconnect.

In a possible implementation, the contact 1082 and the port 1021 are electrically connected, and when the contact module 1081 performs the closing operation, the contact module 1081 is electrically connected with the connection contact 109, and the connection between the contact 109 and the contact 1082 is electrically connected. When the electrical connection is turned on, the electrical connection between the connection contact 109 and the port 1021 is turned on, so that the electrical connection between the controller 101 and the switching circuit board 102 is turned on. When the contact module 1081 performs the opening operation, the electrical connection between the contact module 1081 and the connecting contact 109 is disconnected, the electrical connection between the connecting contact 109 and the contact 1082 is disconnected, and the electrical connection between the connecting contact 109 and the port 1021 is disconnected. Disconnect, so that the electrical connection between the controller 101 and the switch circuit board 102 is disconnected.

Similarly, in another possible implementation manner, the contact 1082 is electrically connected to the connecting contact 109, and when the contact module 1081 performs the closing operation, the contact module 1081 is electrically connected to the port 1021, and the connecting contact is electrically connected. The point 109 and the contact 1082 are electrically connected and conducted. When the contact module 1081 performs the opening operation, the electrical connection between the contact module 1081 and the port 1021 is disconnected, the electrical connection between the connecting contact 109 and the contact 1082 is disconnected, and the electrical connection between the connecting contact 109 and the port 1021 is disconnected. .

It should be noted that, when the contacts 1082 are electrically connected to the connecting contacts 109 , the number of the contacts 1082 and the number of the connecting contacts 109 may be the same, and one contact 1082 is electrically connected to one connecting contact 109 . The contact module 1081 may include a group of contacts, the number of contacts may be the same as the number of contacts 1082, and the number of contacts may be the same as the number of ports 1021. When the contact module 1081 performs the closing operation, one The contacts are correspondingly electrically connected to one port 1021 .

In addition, when the contacts 1082 are electrically connected to the ports 1021 , the number of the contacts 1082 and the number of the ports 1021 may be the same, and one contact 1082 is electrically connected to one port 1021 . The contact module 1081 may include a set of contacts, the number of contacts may be the same as the number of contacts 1082, and the number of contacts may be the same as the number of connecting contacts 109. When the contact module 1081 performs the closing operation , one contact is correspondingly electrically connected to one connecting contact 109 .

Optionally, the contacts 1082 may include: a first set of contacts and a second set of contacts.

The first group of contacts is electrically connected to the connection contacts 109 , and the second group of contacts is electrically connected to the port 1021 .

In addition, when the contact module 1081 performs the closing operation, the first group of contacts is electrically connected to the second group of contacts, so that the electrical connection between the connection contact 109 and the port 1021 is conducted; the contact module 1081 is performing the opening operation. In operation, the first set of contacts is electrically disconnected from the second set of contacts such that the electrical connection between the connecting contacts 109 and the port 1021 is disconnected.

In some embodiments, when the contact module 1081 performs the closing operation, the contacts in the contact module 1081 can be electrically connected to the contacts 1082 in the first group of contacts and the second group of contacts, and then the contacts are connected 109 and the port 1021 are electrically connected to each other, and the controller 101 and the switch circuit board 102 are electrically connected. When the contact module 1081 performs the opening operation, the first group of contacts and the contacts 1082 in the second group of contacts can be electrically disconnected, the contacts 1082 and the port 1021 can be electrically disconnected, and the controller 101 and the switch can be disconnected. The circuit board 102 is electrically disconnected.

It should be noted that the number of contacts 1082 in the first group of contacts, the number of contacts 1082 in the second group of contacts, and the number of contacts in the contact module 1081 may be the same. As shown in Figures 7 and 8, both can be 4, and as shown in Figure 7, the number of connected electric shocks is also 4. Optionally, each contact 1082 in the first group of contacts is electrically connected to one port 1021 , and each contact 1082 in the second group of contacts is electrically connected to one connection contact 109 .

Optionally, the circuit breaker further includes: an operation part.

One end of the operation part is connected to the contact module 1081, and the other end of the operation part penetrates the casing of the circuit breaker.

In some embodiments, when the user controls the contact module 1081, the user can perform a first operation on the operation part, for example, press the operation, then the pressure acting on the operation part is transmitted to the contact module 1081, and the contact module When 1081 is pressed, the contact module 1081 can perform the closing operation. Correspondingly, when the user performs a second operation on the operation part, for example, a pull-out operation, the contact module 1081 will pop up, and the contact module 1081 can perform the opening operation.

In summary, the embodiments of the present application provide a circuit breaker, the circuit breaker includes: a circuit breaker body and a voltage sampling structure, and the voltage sampling structure includes: a controller 101 , a switching circuit board 102 , a transformer, and at least one conductor 104; each conductor 104 is respectively penetrated in the housing 103 of the transformer, one end of the conductor 104 protrudes from the first side 1031 of the housing 103 of the transformer, and is in contact with the switching circuit board 102 for electrical connection, conducting electricity. The other end of the body 104 protrudes from the second side 1032 of the housing 103 of the transformer, and is electrically connected to the power terminals in the circuit breaker body; the switch circuit board 102 is electrically connected to the controller 101 so that the control The device 101 samples and analyzes the voltage transmitted through the conductor 104 and the switching circuit board 102 . The conductor 104 is passed through the housing 103 of the transformer, one end of the conductor 104 is in contact and electrically connected with the switching circuit board 102, and the other end of the conductor 104 is in contact and electrically connected with the power terminal, and the switching circuit board 102 and The controller 101 is in contact with the electrical connection, while realizing the voltage sampling function, the setting of the voltage sampling line 107 is reduced, the wiring structure of the circuit breaker is simplified, and the installation and disassembly of the circuit breaker are more convenient. Moreover, a control switch 108 is provided on the switching circuit board 102 to control the on-off of the voltage transmission between the switching circuit board 102 and the controller 101 through the on-off of the control switch 108, so as to avoid the interruption of the circuit during the withstand voltage test. Only the control switch 108 is controlled during the dismantling operation of the circuit breaker, which is convenient for the withstand voltage test of the circuit breaker.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A circuit breaker, comprising: circuit breaker body and voltage sampling structure, voltage sampling structure includes: the transformer comprises a controller, a switching circuit board, a shell of the transformer and at least one conductor;

each conductor is respectively arranged in the shell of the mutual inductor in a penetrating way, one end of each conductor extends out of the first side of the shell of the mutual inductor and is electrically connected with the switching circuit board in a contact way, and the other end of each conductor extends out of the second side of the shell of the mutual inductor and is electrically connected with the power wiring terminal in the breaker body in a contact way;

the adapter circuit board is electrically connected with the controller contact, so that the controller samples and analyzes the voltage transmitted by the electric conductor and the adapter circuit board.

2. The circuit breaker of claim 1, wherein the transformer housing is disposed within a receiving cavity of a base of the circuit breaker body, and the other end of the electrical conductor extends from a second side of the transformer housing and is electrically connected to the power terminal disposed at a bottom of the base.

3. The circuit breaker according to claim 2, wherein a through hole is provided at a first predetermined position of the bottom of the base, and a conductive member is provided in the through hole and electrically connected to the power terminal through a voltage sampling line provided in the accommodating chamber;

the other end of the conductor extends out of a second preset position corresponding to the first preset position on a second side of the shell of the mutual inductor, so that the other end of the conductor is in contact and electric connection with the conductive piece.

4. The circuit breaker of claim 1, wherein the first side of the transformer housing and the second side of the transformer housing are opposite sides of the transformer housing.

5. The circuit breaker of claim 1, wherein at least one patch panel is disposed on the controller, at least one port is disposed on the adaptor circuit board, and the patch panel and the port are pluggable to each other, such that the controller and the adaptor circuit board are electrically connected through the patch panel contacts.

6. The circuit breaker of claim 5, wherein the transition circuit board further comprises: a control switch; and the connecting contact of the conductor on the switching circuit board is electrically connected with the port through the control switch so as to control the on-off of voltage transmission between the switching circuit board and the controller through the on-off of the control switch.

7. The circuit breaker of claim 6, wherein the control switch is a contact module, the transfer circuit board having contacts thereon;

when the contact module executes a closing operation, the electric connection between the connecting contact point and the port is conducted;

when the contact module performs opening operation, the electric connection between the connecting contact point and the port is disconnected.

8. The circuit breaker of claim 7, wherein the contacts comprise: a set of contacts;

the contact is electrically connected with either the connection contact or the port;

when the contact module performs a closing operation, the contact module is electrically connected with the other one of the connecting contact or the port, so that the electrical connection between the connecting contact and the port is conducted;

when the contact module performs opening operation, the contact module is electrically disconnected with the other of the connecting contact or the port, so that the electrical connection between the connecting contact and the port is disconnected.

9. The circuit breaker of claim 7, wherein the contacts comprise: a first set of contacts and a second set of contacts;

a first set of contacts electrically connected with the connection contacts and a second set of contacts electrically connected with the port;

when the contact module executes a closing operation, the first group of contacts are electrically connected with the second group of contacts, so that the electrical connection between the connecting contacts and the ports is conducted;

when the contact module executes opening operation, the first group of contacts and the second group of contacts are disconnected, so that the electrical connection between the connecting contacts and the ports is disconnected.

10. The circuit breaker of claim 7, further comprising: an operation section;

one end of the operation part is connected with the contact module, and the other end of the operation part penetrates out of the shell of the circuit breaker.

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