CN213813747U - Circuit breaker - Google Patents

Abstract

The utility model provides a circuit breaker relates to electrical equipment technical field. 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 voltage sampling line setting, simplify and walk the line structure for the installation of circuit breaker, dismantle more convenient.

Description

Circuit breaker

Technical Field

The utility model relates to an electrical equipment technical field particularly, relates to a circuit breaker.

Background

The circuit breaker can be used for distributing electric energy and protecting a power supply circuit, a motor and the like. With the development of science and technology, the functions of the circuit breaker are more and more, and the circuit breaker with the voltage acquisition function is also widely popular.

In the related art, a voltage sampling line is led out from a controller of a circuit breaker and connected to a circuit board of the circuit breaker, and then the voltage sampling line is led out from the circuit board of the circuit breaker and connected to an electric power outlet terminal or an electric power inlet terminal, so that the controller of the circuit breaker samples and analyzes the voltage.

However, in the related art, the voltage sampling line routing structure is complex, and the circuit breaker is inconvenient to mount and dismount.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit breaker to the not enough among the above-mentioned prior art to in solving the correlation technique, the line structure is complicated for the voltage sampling line, has the problem of the circuit breaker installation of not being convenient for, dismantlement.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, an embodiment of the present invention provides a circuit breaker, including: 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.

Optionally, the case of the transformer is disposed in the accommodating cavity of the base of the circuit breaker body, and the other end of the conductor extends out of the second side of the case of the transformer and is electrically connected to the power terminal disposed at the bottom of the base.

Optionally, a through hole is formed in a first preset position at the bottom of the base, and the conductive piece is arranged in the through hole and is electrically connected with the power wiring terminal through a voltage sampling line arranged in the accommodating cavity;

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.

Optionally, the first side of the casing of the transformer and the second side of the casing of the transformer are two sides of the casing of the transformer, which are opposite to each other.

Optionally, be provided with at least one row on the controller and insert, be provided with at least one port on the adapter circuit board, the row insert with but the port plug is connected, so that the controller with the adapter circuit board passes through the row inserts the contact electricity and connects.

Optionally, the adapter circuit board is further provided with: 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.

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

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.

Optionally, the contact includes: 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.

Optionally, the contact includes: 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 in electric connection, so that the electric connection between the connecting contacts and the ports is disconnected;

optionally, the circuit breaker further includes: 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.

The utility model has the advantages that: the embodiment of the application provides a circuit breaker, this 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 one end and the switching circuit board contact electricity of electric conductor are connected, and the other end and the electric power wiring end contact electricity of electric conductor are connected, and switching circuit board and controller contact electricity are connected, when realizing the voltage sampling function, have reduced the setting of voltage sampling line, have simplified the structure of walking the line of circuit breaker for the installation of circuit breaker, dismantlement are more convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic diagram of a 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 present disclosure;

fig. 2 is a schematic structural diagram of a housing of an instrument transformer provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a housing of an instrument transformer according to an embodiment of the present application;

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

fig. 5 is a schematic structural diagram of a base according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a base bottom according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an adapting circuit board according to 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 numerals: 101-a controller; 102-a patch circuit board; 1021-port; 103-housing of the transformer; 1031-first side; 1032-a second side; 104-an electrical conductor; 105-a base; 1051-the bottom of the base; 1052-an accommodating cavity; 1053-a through hole; 106-a conductive member; 107-voltage sampling line; 108-a control switch; 1081-a contact module; 1082-contact; 109-connecting contacts; 110-power line inlet end; 111-power outlet terminal.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

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.

In the description of the present application, it should be noted that if the terms "upper", "lower", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the application is used, the description is only for convenience of describing the application and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus, cannot be understood as the limitation of the application.

Furthermore, the terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.

Fig. 1 is the embodiment of the utility model provides a cooperation structure schematic diagram of controller, switching circuit board of circuit breaker and mutual-inductor's casing, fig. 2 and 3 are the structure schematic diagram of the shell of this application embodiment provides a mutual-inductor, as shown in fig. 1, 2 and 3, this circuit breaker includes: circuit breaker body and voltage sampling structure, voltage sampling structure includes: controller 101, adapter circuit board 102, transformer's casing 103, at least one electric conductor 104.

The conductors 104 are respectively inserted into the housing 103 of the transformer, one end of each conductor 104 extends out from the first side 1031 of the housing 103 of the transformer and is electrically connected with the adapter circuit board 102 in a contact manner, and the other end of each conductor 104 extends out from the second side 1032 of the housing 103 of the transformer and is electrically connected with a power terminal in the breaker body in a contact manner.

In addition, the relay circuit board 102 and the controller 101 are electrically connected in contact, so that the controller 101 performs sampling analysis on the voltage transmitted through the conductive body 104 and the relay circuit board 102.

The conductive body 104 may be a metal conductive body 104, and of course, may also be other types of devices that can conduct electricity, which is not specifically limited in this application. As shown in fig. 2 and 3, the number of the conductive bodies 104 may be 4, and it should be understood that the number of the conductive bodies 104 may also be 1, 2, 3, and so on, which is not particularly limited by the embodiment of the present application.

When the number of the conductors 104 is plural, each conductor 104 is independently inserted into the case 103 of the transformer, and the transformer may be provided in the case 103 of the transformer. An insulating layer may be disposed on an outer wall of each of the conductive bodies 104 to stably transmit voltage through the conductive bodies 104. Each electrical conductor 104 is left without insulation at either end so that the corresponding patch circuit board 102, power terminal contacts are electrically connected.

In the embodiments of the present application, the contact electrical connection obviously refers to an electrical connection realized by direct contact, and is not an electrical connection realized by a wire. For example, the electrical connection is realized by soldering, or the electrical connection is realized by a conductive interface, and of course, other types of electrical connections are also possible, which are not specifically limited by the embodiments of the present application.

In some embodiments, the power terminals may be: the power line terminal in the circuit breaker may be connected to a power grid or other circuit breaker power terminals, and then the power line terminal in the circuit breaker has a voltage, and the voltage is transmitted to the adapting circuit board 102 through one end and the other end of the conductor 104, the adapting circuit board 102 may process the voltage to obtain a processed voltage, and send the processed voltage to the controller 101, and the controller 101 may perform analysis according to the processed voltage, so as to implement a voltage sampling and analyzing function of the circuit breaker.

In addition, the shape of the conductor 104 may be an elongated shape, and the cross-sectional shape of the conductor 104 may be a circle, a triangle, a rectangle, or another geometric shape, which is not particularly limited in the embodiment of the present application.

To sum up, the embodiment of the present application provides a circuit breaker, this circuit breaker includes: circuit breaker body and voltage sampling structure, voltage sampling structure includes: a controller 101, a transfer circuit board 102, a transformer, at least one conductor 104; each conductor 104 is respectively arranged in the shell 103 of the mutual inductor in a penetrating way, one end of each conductor 104 extends out from the first side 1031 of the shell 103 of the mutual inductor and is in contact and electric connection with the adapter circuit board 102, and the other end of each conductor 104 extends out from the second side 1032 of the shell 103 of the mutual inductor and is in contact and electric connection with a power terminal in the breaker body; the relay circuit board 102 is in contact electrical connection with the controller 101 so that the controller 101 performs sampling analysis of the voltage transmitted through the electrical conductor 104 and the relay circuit board 102. The electric conductor 104 penetrates through the shell 103 of the mutual inductor, one end of the electric conductor 104 is electrically connected with the switching circuit board 102 in a contact mode, the other end of the electric conductor 104 is electrically connected with the power wiring terminal in a contact mode, the switching circuit board 102 is electrically connected with the controller 101 in a contact mode, the voltage sampling function is achieved, meanwhile, the arrangement of the voltage sampling line 107 is reduced, the wiring structure of the circuit breaker is simplified, and the circuit breaker is convenient to install and disassemble.

Optionally, the transformer is disposed within the receiving cavity 1052 of the base 105 of the circuit breaker body, and the other end of the electrical conductor 104 extends out of the second side 1032 of the housing 103 of the transformer and is electrically connected to the power terminals disposed at the bottom 1051 of the base.

Fig. 4 is a schematic structural diagram of a circuit breaker according to an embodiment of the present application, and fig. 5 is a schematic structural diagram of a base 105 according to an embodiment of the present application, as shown in fig. 4, a circuit breaker body includes: the base 105, as shown in fig. 5, the base 105 is provided with a receiving cavity 1052. As shown in fig. 4, the adapting circuit board 102, the housing 103 of the transformer, and the transformer located in the transformer housing may be disposed 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 application.

When the other end of the conductor 104 extends out of the second side 1032 of the housing 103 of the transformer, it may be directly in contact with and electrically connected to a conductive portion provided on the power connection terminal; optionally, when the other end of the conductive body 104 extends out of the second side 1032 of the casing 103 of the transformer, the other end may be electrically connected to a conductive part disposed at the bottom of the base 105, and the conductive part is electrically connected to the power outlet 111.

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

In addition, each conductor 106 is connected to a corresponding power terminal through an independent voltage sampling line 107, and the power terminals may be: at least one power inlet terminal 110 or at least one power outlet terminal 111. The number of the power line inlet terminal 110 and the power line outlet terminal 111 may be the same, the number of the conductive body 104, the conductive body 106 and the through hole 1053 may be the same, and the number of the conductive body 104, the conductive body 106 and the through hole 1053 may be greater than or equal to the number of the power line inlet terminal 110.

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

In some embodiments, the conductive member 106 is electrically connected to the power inlet terminal 110 or the power outlet terminal 111 through the voltage sampling line 107, as shown in fig. 6, when the conductive member 106 is electrically connected to the power inlet terminal 110 in the breaker body in contact. The voltage at the power line inlet 110 is transmitted to the controller 101 through the voltage sampling line 107, the conductive member 106, the conductive member 104 and the adapting circuit board 102, so that the controller 101 can sample and analyze the voltage at the power line inlet 110.

Similarly, the conductive member 106 is electrically connected to the power outlet 111 of 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 conductive body 104, and the adapting circuit board 102, so that the controller 101 can sample and analyze the voltage at the power outlet 111. In addition, the voltage outlet end can also be provided with a cover plate, and the voltage inlet end can also be provided with a cover plate.

As shown in fig. 6, the power inlet terminal 110 is provided at one end of the bottom 1051 of the base, and the power outlet terminal 111 is provided at the other end of the bottom of the base 105.

The number of the power inlet terminal 110, the power outlet terminal 111, and the number of the conductors 104 may be determined according to the electricity used by the circuit breaker, for example, when the electricity used by the circuit breaker body is single-phase electricity, the number of the power inlet terminal 110, the power outlet terminal 111, and the number of the conductors 104 may be 1; when the electricity adopted by the circuit breaker body is three-phase electricity, the number of the electric power incoming line end 110, the electric power outgoing line end 111 and the electric conductor 104 can be 3; when the electricity used by the circuit breaker body is four-phase electricity, the number of the electric power inlet terminal 110, the electric power outlet terminal 111 and the electric conductor 104 can be 4.

The conductive component 106 may be a metal component, and certainly, may also be other types of conductive components, which is not limited in this embodiment of the present application.

In one possible embodiment, the conductive element 106 may be fixed in the corresponding through hole 1053, the conductive element 106 and the voltage sampling line 107 may be welded to each other, and the conductive element 106 and the other end of the conductive body 104 may be welded to each other. Of course, the conductive body 104 may be a hollow structure, and the outer wall of the conductive body 106 and the inner wall of the conductive body 104 may be provided with matching threads to contact the conductive body 104 and the conductive body 106. In addition, the conductive member 106 may have a hollow structure, and the outer wall of the conductive body 104 and the inner wall of the conductive member 106 may be provided with matching threads to contact and electrically connect the conductive body 104 and the conductive member 106.

Optionally, as shown in fig. 2 and 3, the first side 1031 of the enclosure 103 of the transformer and the second side 1032 of the enclosure 103 of the transformer are two sides of the enclosure 103 of the transformer that are opposite to each other.

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

Of course, the first side 1031 and the second side 1032 may also be sides of the housing 103 of the transformer, that is, not a bottom and a top, and the corresponding adaptor circuit board 102 and the power terminal may be changed accordingly to ensure that one end of the electrical conductor 104 is electrically connected to the adaptor circuit board 102 in a contact manner and the other end of the electrical conductor 104 is electrically connected to the power terminal in a contact manner, which is not particularly limited in the embodiment of the present application.

Optionally, at least one patch board is disposed on the controller 101, as shown in fig. 2, at least one port 1021 is disposed on the adaptor circuit board 102, and the patch board and the port 1021 are connected in a pluggable manner, so that the controller 101 and the adaptor circuit board 102 are electrically connected through patch contact.

The projection area of the extension socket arranged on the controller 101 coincides with the area where the port 1021 arranged on the corresponding adapter circuit board 102 is located, and the extension socket and the port 1021 are mutually matched to realize pluggable connection, so that contact electric connection between the controller 101 and the adapter circuit board 102 is realized. Of course, the controller 101 and the relay circuit board 102 may be electrically connected in other ways, such as soldering.

In addition, the extension socket is arranged on one side of the controller 101 close to the adapter circuit board 102, the ports 1021 are arranged on one side of the adapter circuit board 102 close to the controller 101, when the number of the extension socket and the number of the ports 1021 are multiple, the extension socket can be uniformly distributed on the controller 101, and the ports 1021 can be uniformly distributed on the adapter circuit board 102, so that the stability of the contact and electrical connection between the controller 101 and the adapter board is improved.

It should be noted that the adapting circuit board 102 in this document may be a PCB (Printed circuit board), and the port 1021 may be disposed on the PCB.

Optionally, fig. 7 is a schematic structural diagram of the adapting circuit board 102 provided in the embodiment of the present application, and as shown in fig. 1, 4 and 7, the adapting circuit board 102 is further provided with: controlling the switch 108.

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

Alternatively, the relay board 102 may be electrically connected to the contacts of the conductors 104, the connection contacts 109 may be located on the relay board 102, and the control switch 108 may be connected between the connection contacts 109 and the port 1021. When the control switch 108 is closed, the connection contact 109 is conducted with the port 1021, and the control circuit board is also conducted with the controller 101; when the control switch 108 is turned off, the connection contact 109 and the port 1021 are disconnected, and the control 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 be integrated inside the PCB, so that the external wiring of the circuit breaker can be reduced.

It should be noted that, the circuit breaker often needs to be subjected to a withstand voltage test to ensure that the withstand voltage quality of the circuit breaker is qualified. Among the correlation technique, when carrying out withstand voltage test to the circuit breaker, need the manual work to dismantle a plurality of voltage sampling lines 107 of connecting, then to input high voltage, carry out withstand voltage test to the circuit breaker then, manual operation not convenient for leads to the withstand voltage test to the circuit breaker not convenient for.

In the embodiment of the application, the control switch 108 is arranged on the adapter circuit board 102, the on-off of the voltage transmission between the adapter circuit board 102 and the controller 101 can be controlled through the manual control switch 108, when the voltage withstand test is performed on the circuit breaker in advance, the control switch 108 is turned off, the voltage transmission between the adapter circuit board 102 and the controller 101 is turned off, and then the voltage withstand test can be performed on the circuit breaker. When the circuit breaker realizes the voltage sampling analysis function in advance, the control switch 108 is closed, the voltage transmission between the adapter circuit board 102 and the controller 101 is conducted, and the voltage at the power connection end can be transmitted to the controller 101 through the conductive piece 106, the conductive body 104 and the circuit adapter board, so that the controller 101 can perform the voltage sampling analysis.

Of course, the control switch 108 may also be electrically connected to the controller 101, and the control signal output by the controller 101 controls the control switch 108 to be opened or closed, so that the control switch 108 can be automatically controlled. This is not particularly limited by the embodiments of the present application.

Optionally, fig. 8 is a schematic structural diagram of a control switch 108 according to an embodiment of the present disclosure, where the control switch 108 is a contact module 1081, and the adaptor circuit board 102 has a contact 1082.

When the contact module 1081 performs a closing operation, the electrical connection between the connection contact 109 and the port 1021 is conducted; the contact module 1081 disconnects the electrical connection between the connection contacts 109 and the port 1021 during the opening operation.

It should be noted that, when the contact module 1081 performs a closing operation, the control switch 108 is closed, and the electrical connection between the connection contact 109 and the port 1021 is conducted, so that the electrical connection between the controller 101 and the adaptor circuit board 102 is conducted; when the contact module 1081 performs the opening operation, the control switch 108 is turned off, and the electrical connection between the connection contact 109 and the port 1021 is broken, so that the electrical connection between the controller 101 and the relay circuit board 102 is broken.

Optionally, contact 1082 includes: a set of contacts.

Wherein contact 1082 is electrically connected to either of connection contact 109 or port 1021; when the contact module 1081 performs a closing operation, the contact module is electrically connected to the other of the connection contact 109 or the port 1021, so that the electrical connection between the connection contact 109 and the port 1021 is conducted; when the opening operation is performed, the contact module 1081 is electrically disconnected from the other of the connection contact 109 or the port 1021, so that the electrical connection between the connection contact 109 and the port 1021 is broken.

In one possible embodiment, the contact 1082 is electrically connected to the port 1021, when the contact module 1081 performs a closing operation, the contact module 1081 is electrically connected to the connection contact 109, the electrical connection between the connection contact 109 and the port 1021 is conducted, and the electrical connection between the connection contact 109 and the port 1021 is conducted, so that the electrical connection between the controller 101 and the relay circuit board 102 is conducted. When the contact module 1081 performs the opening operation, the contact module 1081 is electrically disconnected from the connection contact 109, and the connection contact 109 and the contact 1082 are electrically disconnected, so that the electrical connection between the connection contact 109 and the port 1021 is broken, and the electrical connection between the controller 101 and the adaptor circuit board 102 is broken.

Similarly, in another possible embodiment, the contact 1082 is electrically connected to the connection contact 109, and when the contact module 1081 performs a closing operation, the contact module 1081 is electrically connected to the port 1021, and the connection contact 109 and the contact 1082 are electrically connected to each other. When the contact module 1081 performs the opening operation, the contact module 1081 is electrically disconnected from the port 1021, and the electrical connection between the connection contact 109 and the port 1021 is disconnected if the connection contact 109 and the contact 1082 are electrically disconnected.

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

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

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

Wherein the first set of contacts is electrically connected to connection contacts 109 and the second set of contacts is electrically connected to port 1021.

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

In some embodiments, when the contact module 1081 performs a closing operation, the controller 101 and the relay circuit board 102 may be electrically connected by the contacts of the contact module 1081 electrically connecting the contacts 1082 of the first set of contacts and the second set of contacts, and then the connection contacts 109 and the port 1021 are electrically connected. When the contact module 1081 performs the opening operation, the contacts 1082 of the first set of contacts and the second set of contacts are electrically disconnected, the contacts 1082 and the port 1021 are electrically disconnected, and the controller 101 and the adapting circuit board 102 are electrically disconnected.

It should be noted that the number of contacts 1082 in the first set of contacts, the number of contacts 1082 in the second set of contacts, and the number of contacts in the contact module 1081 may be the same. As shown in fig. 7 and 8, each of the number of contacts may be 4, and as shown in fig. 7, the number of contacts may be 4. Optionally, each contact 1082 of the first set of contacts is electrically connected to one port 1021, and each contact 1082 of the second set of contacts is electrically connected to one connection contact 109.

Optionally, the circuit breaker further comprises: an operation unit.

One end of the operating portion is connected to the contact module 1081, and the other end of the operating portion extends out of the housing of the circuit breaker.

In some embodiments, when the user controls the contact module 1081, a first operation, for example, a pressing operation, may be performed on the operating portion, and a pressure applied to the operating portion is transmitted to the contact module 1081, and the contact module 1081 is pressed, so that the contact module 1081 may perform a closing operation. Accordingly, when the user performs a second operation, for example, a pulling-out operation, on the operation portion, the contact module 1081 is popped up, and the contact module 1081 may perform a switching-off operation.

To sum up, the embodiment of the present application provides a circuit breaker, this circuit breaker includes: circuit breaker body and voltage sampling structure, voltage sampling structure includes: a controller 101, a transfer circuit board 102, a transformer, at least one conductor 104; each conductor 104 is respectively arranged in the shell 103 of the mutual inductor in a penetrating way, one end of each conductor 104 extends out from the first side 1031 of the shell 103 of the mutual inductor and is in contact and electric connection with the adapter circuit board 102, and the other end of each conductor 104 extends out from the second side 1032 of the shell 103 of the mutual inductor and is in contact and electric connection with a power terminal in the breaker body; the relay circuit board 102 is in contact electrical connection with the controller 101 so that the controller 101 performs sampling analysis of the voltage transmitted through the electrical conductor 104 and the relay circuit board 102. The electric conductor 104 penetrates through the shell 103 of the mutual inductor, one end of the electric conductor 104 is electrically connected with the switching circuit board 102 in a contact mode, the other end of the electric conductor 104 is electrically connected with the power wiring terminal in a contact mode, the switching circuit board 102 is electrically connected with the controller 101 in a contact mode, the voltage sampling function is achieved, meanwhile, the arrangement of the voltage sampling line 107 is reduced, the wiring structure of the circuit breaker is simplified, and the circuit breaker is convenient to install and disassemble. Moreover, the control switch 108 is arranged on the adapter circuit board 102 to control the on-off of the voltage transmission between the adapter circuit board 102 and the controller 101 through the on-off of the control switch 108, so that the disassembly operation of the circuit breaker in the withstand voltage test process is avoided, only the control switch 108 is controlled, and the withstand voltage test of the circuit breaker is facilitated.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in 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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