breaker

Abstract

The present invention provides a circuit breaker, which relates to the technical field of electrical equipment. 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 arranged in the housing of the transformer, one end of the conductor extends from the first side of the housing of the transformer, and is electrically connected to the switching circuit board, and the other end of the conductor extends from the second side of the housing of the transformer, and is electrically connected to the power wiring terminal in the circuit breaker body; the switching circuit board and the controller are electrically connected, so that the controller samples and analyzes the voltage transmitted through the conductor and the switching circuit board. The conductor is arranged in the housing of the transformer, and the conductor is electrically connected to the switching circuit board and the power wiring terminal, and the switching circuit board and the controller are electrically connected, which reduces the setting of the voltage sampling line, simplifies the wiring structure, and makes the installation and disassembly of the circuit breaker more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a circuit breaker. Background Art

[0002] Circuit breakers can be used to distribute electrical energy and protect power lines and motors, etc. With the development of science and technology, circuit breakers have more and more functions, and circuit breakers with voltage collection functions have also been widely welcomed.

[0003] In the related art, a voltage sampling line is led out from the circuit breaker controller and connected to the circuit breaker circuit board, and then the voltage sampling line is led out from the circuit breaker circuit board and connected to the power outgoing line terminal or the power incoming line terminal, so that the circuit breaker controller can sample and analyze the voltage.

[0004] However, in the related art, the wiring structure of the voltage sampling line is complex, which makes it inconvenient to install and disassemble the circuit breaker. Summary of the invention

[0005] The object of the present invention is to provide a circuit breaker to address the deficiencies in the prior art, so as to solve the problem in the related art that the wiring structure of the voltage sampling line is complicated and it is inconvenient to install and disassemble the circuit breaker.

[0006] To achieve the above purpose, the technical solution adopted by the embodiment of the present invention is as follows:

[0007] 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 comprises: a controller, a switching circuit board, a housing of a transformer, and at least one conductor;

[0008] Each of the conductors is respectively inserted into the housing of the transformer, one end of the conductor extends from a first side of the housing of the transformer and is in contact and electrically connected with the adapter circuit board, and the other end of the conductor extends from a second side of the housing of the transformer and is in contact and electrically connected with the power terminal in the circuit breaker body;

[0009] The adapter circuit board is electrically connected to the controller so that the controller samples and analyzes the voltage transmitted through the conductor and the adapter circuit board.

[0010] 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 extends out from the second side of the shell of the transformer and is electrically connected to the power terminal arranged at the bottom of the base.

[0011] Optionally, a through hole is provided at a first preset position on the bottom of the base, the conductive member is provided in the through hole, and is electrically connected to the power terminal through a voltage sampling line provided in the accommodating cavity;

[0012] The other end of the conductor extends 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 in contact with and electrically connected to the conductive member.

[0013] Optionally, the first side of the housing of the mutual inductor and the second side of the housing of the mutual inductor are two sides of the housing of the mutual inductor that are arranged opposite to each other.

[0014] Optionally, at least one power strip is provided on the controller, and at least one port is provided on the adapter circuit board. The power strip and the port are pluggable and connected so that the controller and the adapter circuit board are electrically connected through the power strip.

[0015] Optionally, the adapter circuit board is also provided with: a control switch; the connection contacts of the conductor on the adapter circuit board are electrically connected to the port through the control switch, so as to control the on and off of the voltage transmission between the adapter circuit board and the controller by turning on and off the control switch.

[0016] Optionally, the control switch is a contact module, and the adapter circuit board has contacts;

[0017] When the contact module performs a closing operation, the electrical connection between the connection contact and the port is conducted;

[0018] When the contact module performs a disconnection operation, the electrical connection between the connection contact and the port is disconnected.

[0019] Optionally, the contact includes: a group of contacts;

[0020] The contact is electrically connected to any one of the connection contact or the port;

[0021] When performing a closing operation, the contact module is electrically connected to the other of the connection contact or the port, so that the electrical connection between the connection contact and the port is conducted;

[0022] When performing a switch-off operation, the contact module is electrically disconnected from the other of the connection contact or the port, so that the electrical connection between the connection contact and the port is disconnected.

[0023] Optionally, the contacts include: a first group of contacts and a second group of contacts;

[0024] The first group of contacts is electrically connected to the connection contacts, and the second group of contacts is electrically connected to the port;

[0025] When the contact module performs a closing operation, the first group of contacts is electrically connected to the second group of contacts, so that the electrical connection between the connection contacts and the port is conducted;

[0026] When the contact module performs a switch-off 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;

[0027] Optionally, the circuit breaker further comprises: an operating unit;

[0028] One end of the operating part is connected to the contact module, and the other end of the operating part passes through the housing of the circuit breaker.

[0029] The beneficial effects of the present invention are as follows: the embodiment of the present application provides a circuit breaker, which includes: a circuit breaker body and a voltage sampling structure, the voltage sampling structure includes: a controller, a switching circuit board, a transformer, and at least one conductor; each conductor is respectively arranged in the housing of the transformer, one end of the conductor extends from the first side of the housing of the transformer, and is in contact and electrically connected with the switching circuit board, and the other end of the conductor extends from the second side of the housing of the transformer, and is in contact and electrically connected with the power wiring terminal in the circuit breaker body; the switching circuit board and the controller are in contact and electrically connected, so that the controller samples and analyzes the voltage transmitted through the conductor and the switching circuit board. The conductor is arranged in the housing of the transformer, one end of the conductor is in contact and electrically connected with the switching circuit board, the other end of the conductor is in contact and electrically connected with the power wiring terminal, and the switching circuit board and the controller are in contact and electrically connected. 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of the matching structure of a controller, a switching circuit board and a housing of a transformer of a circuit breaker provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of the structure of a housing of a mutual inductor provided in an embodiment of the present application;

[0033] Figure 3 A schematic diagram of the structure of a housing of a mutual inductor provided in an embodiment of the present application;

[0034] Figure 4 A schematic diagram of the structure of a circuit breaker provided in an embodiment of the present application;

[0035] Figure 5 A schematic diagram of the structure of a base provided in an embodiment of the present application;

[0036] Figure 6 A schematic diagram of the structure of a base bottom provided in an embodiment of the present application;

[0037] Figure 7 A schematic diagram of the structure of a transfer circuit board provided in an embodiment of the present application;

[0038] Figure 8 A schematic diagram of the structure of a control switch provided in an embodiment of the present application.

[0039] Figure numbers: 101-controller; 102-adapter circuit board; 1021-port; 103-shell of transformer; 1031-first side; 1032-second side; 104-conductor; 105-base; 1051-bottom of base; 1052-accommodating cavity; 1053-through hole; 106-conductive member; 107-voltage sampling line; 108-control switch; 1081-contact module; 1082-contact; 109-connection contact; 110-power input terminal; 111-power output terminal. DETAILED DESCRIPTION

[0040] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0042] In the description of the present application, it should be noted that if the terms "upper", "lower", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0043] In addition, the terms "first", "second", etc. in the specification 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 should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0045] Figure 1 A schematic diagram of the matching structure of a controller, a switching circuit board and a housing of a transformer of a circuit breaker provided in an embodiment of the present invention, Figure 2 and 3 A schematic diagram of the structure of a housing of a mutual inductor provided in an embodiment of the present application is shown in FIG. Figure 1 , 2 As shown in FIG. 3 , 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 housing 103 of a transformer, and at least one conductor 104 .

[0046] Among them, each conductor 104 is respectively inserted into the shell 103 of the transformer, one end of the conductor 104 extends from the first side 1031 of the shell 103 of the transformer, and is in contact with and electrically connected to the adapter circuit board 102, and the other end of the conductor 104 extends from the second side 1032 of the shell 103 of the transformer, and is in contact with and electrically connected to the power terminal in the circuit breaker body.

[0047] In addition, the adapter circuit board 102 and the controller 101 are in electrical contact, so that the controller 101 samples and analyzes the voltage transmitted through the conductor 104 and the adapter circuit board 102 .

[0048] The conductor 104 may be a metal conductor 104, or may be another type of conductive device, which is not specifically limited in the present embodiment. Figure 2 and 3 As shown, 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., and the embodiment of the present application does not impose any specific limitation on this.

[0049] It should be noted that when there are multiple conductors 104, each conductor 104 is independently inserted into 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 that the voltage can be stably transmitted through the conductor 104. No insulating layer is provided at both ends of each conductor 104 so that the corresponding adapter circuit board 102 and the power terminal are in contact and electrically connected.

[0050] In the embodiments of the present application, contact electrical connection obviously refers to electrical connection achieved by direct contact, not electrical connection achieved by wires, for example, electrical connection achieved by welding, or electrical connection achieved by a conductive interface, and of course, other types of electrical connection are also possible, and the embodiments of the present application do not specifically limit this.

[0051] In some embodiments, the power terminal can be: a power input terminal 110 or a power output terminal 111. The power terminal in the circuit breaker can be connected to the power terminal of a power grid or other circuit breakers. Then, there is a voltage on the power terminal in the circuit breaker. The voltage is transmitted to the adapter circuit board 102 through one end and the other end of the conductor 104. The adapter circuit board 102 can process the voltage to obtain a processed voltage and send the processed voltage to the controller 101. The controller 101 can perform analysis based on the processed voltage to realize the voltage sampling and analysis function of the circuit breaker.

[0052] In addition, the shape of the conductor 104 may be a long strip, and the cross-sectional shape of the conductor 104 may be circular, triangular, rectangular, or other geometric shapes, which are not specifically limited in the embodiments of the present application.

[0053] In summary, an embodiment of the present application provides a circuit breaker, which includes: a circuit breaker body and a voltage sampling structure, the voltage sampling structure includes: a controller 101, an adapter circuit board 102, a transformer, and at least one conductor 104; each conductor 104 is respectively inserted into a housing 103 of the transformer, one end of the conductor 104 extends from a first side 1031 of the housing 103 of the transformer, and is in contact and electrically connected with the adapter circuit board 102, and the other end of the conductor 104 extends from a second side 1032 of the housing 103 of the transformer, and is in contact and electrically connected with a power terminal in the circuit breaker body; the adapter 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 adapter circuit board 102. The conductor 104 is inserted into the housing 103 of the transformer, one end of the conductor 104 is electrically connected to the adapter circuit board 102, and the other end of the conductor 104 is electrically connected to the power terminal. The adapter circuit board 102 and the controller 101 are electrically connected. 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.

[0054] Optionally, the transformer is disposed in the accommodating cavity 1052 of the base 105 of the circuit breaker body, and the other end of the conductor 104 extends from the second side 1032 of the transformer housing 103 and is electrically connected to the power terminal disposed at the bottom 1051 of the base.

[0055] Figure 4 A schematic diagram of the structure of a circuit breaker provided in an embodiment of the present application is shown in FIG. Figure 5 A schematic diagram of the structure of a base 105 provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, the circuit breaker body includes: a base 105, such as Figure 5 As shown, the base 105 is provided with a receiving cavity 1052. Figure 4 As shown, the adapter circuit board 102, the housing 103 of the transformer, and the transformer located in the housing of the transformer can all be arranged in the accommodating cavity 1052. In addition, the controller 101 can be arranged in the accommodating cavity 1052, and of course, it can also be arranged outside the accommodating cavity 1052, and the embodiment of the present application does not specifically limit this.

[0056] It should be noted that when the other end of the conductor 104 extends 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; optionally, when the other end of the conductor 104 extends from the second side 1032 of the housing 103 of the transformer, it can be electrically connected with the conductive part provided at the bottom of the base 105, and the conductive part is electrically connected to the power outlet terminal 111. Both methods are feasible, and the embodiments of the present application do not impose specific restrictions on this.

[0057] Optional, such as Figure 5 As shown, a through hole 1053 is provided at a first preset position of the bottom 1051 of the base. Figure 6 A schematic diagram of the structure of the bottom 1051 of the base provided in the embodiment of the present application, as shown in FIG. Figure 6 As shown, the conductive member 106 is disposed in the through hole 1053 and is electrically connected to the power terminal through the voltage sampling line 107 disposed in the accommodating cavity 1052. The other end of the conductive member 104 extends from a 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 conductive member 104 is in contact with the conductive member 106 and is electrically connected.

[0058] 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 output terminal 111. The number of power input terminals 110 and power output terminals 111 may be the same, the number of conductors 104, conductive members 106, and through holes 1053 may be the same, and the number of conductors 104, conductive members 106, and through holes 1053 may be greater than or equal to the number of power input terminals 110.

[0059] In the embodiment of the present application, the cross-sectional shape of the conductive member 106 is the same as the cross-sectional shape of the through hole 1053, and the cross-sectional size of the conductive member 106 is smaller than the cross-sectional size of the through hole 1053. The projection area of ​​the second preset position where the other end of the conductor 104 extends from the second side 1032 of the housing 103 of the transformer coincides with the area where the first preset position of the bottom 1051 of the base is located.

[0060] In some embodiments, the conductive member 106 is electrically connected to the power input terminal 110 or the power output terminal 111 through the voltage sampling line 107. Figure 6 As shown, when the conductive member 106 is in electrical contact with the power input terminal 110 in the circuit breaker body, 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 adapter circuit board 102, so that the controller 101 can sample and analyze the voltage at the power input terminal 110.

[0061] Similarly, when the conductive member 106 is in electrical contact with the power outlet terminal 111 in the circuit breaker body, the voltage at the power outlet terminal 111 is transmitted to the controller 101 through the voltage sampling line 107, the conductive member 106, the conductor 104, and the adapter circuit board 102, so that the controller 101 can sample and analyze the voltage at the power outlet terminal 111. In addition, the voltage outlet terminal can also be provided with a cover plate, and of course the voltage input terminal can also be provided with a cover plate.

[0062] In addition, if Figure 6 As shown, the power input terminal 110 is disposed at one end of the bottom 1051 of the base, and the power output terminal 111 is disposed at the other end of the bottom of the base 105 .

[0063] It should be noted that the number of power input terminals 110, power output terminals 111, and conductors 104 can 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 power input terminals 110, power output terminals 111, and conductors 104 can all be 1; when the electricity used by the circuit breaker body is three-phase electricity, the number of power input terminals 110, power output terminals 111, and conductors 104 can all be 3; when the electricity used by the circuit breaker body is four-phase electricity, the number of power input terminals 110, power output terminals 111, and conductors 104 can all be 4.

[0064] The conductive member 106 may be a metal member, or of course, may be other types of conductive devices, which is not specifically limited in the embodiment of the present application.

[0065] In a possible implementation, 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 conductive member 106 and the other end of the conductor 104 can also be welded. Of course, the conductor 104 can be a hollow structure, and the outer wall of the conductive member 106 and the inner wall of the conductor 104 can be provided with mutually matching threads to contact and electrically connect the conductor 104 and the conductive member 106. In addition, the conductive member 106 can be a hollow structure, and the outer wall of the conductor 104 and the inner wall of the conductive member 106 can be provided with mutually matching threads to contact and electrically connect the conductor 104 and the conductive member 106.

[0066] Optional, such as Figure 2 and 3 As shown, the first side 1031 of the housing 103 of the transformer and the second side 1032 of the housing 103 of the transformer are two sides of the housing 103 of the transformer that are arranged opposite to each other.

[0067] In some embodiments, the first side 1031 of the housing 103 of the transformer may be the top of the housing 103 of the transformer, and the second side 1032 of the housing 103 of the transformer may be the bottom of the housing 103 of the transformer.

[0068] Of course, the first side 1031 and the second side 1032 may also be the sides of the shell 103 of the transformer, that is, not the bottom and the top, and the corresponding adapter circuit board 102 and the power terminal may be changed accordingly to ensure that one end of the conductor 104 is in contact and electrically connected with the adapter circuit board 102, and the other end of the conductor 104 is in contact and electrically connected with the power terminal. The embodiment of the present application does not impose specific restrictions on this.

[0069] Optionally, the controller 101 is provided with at least one socket, such as Figure 2 As shown, at least one port 1021 is provided on the adapter circuit board 102 , and the power strip and the port 1021 are pluggable and connected, so that the controller 101 is electrically connected to the adapter circuit board 102 through the power strip contact.

[0070] The projection area of ​​the power strip provided on the controller 101 overlaps with the area where the port 1021 provided on the corresponding adapter circuit board 102 is located, and the power strip and the port 1021 are adapted to each other to achieve a pluggable connection, thereby achieving electrical contact connection between the controller 101 and the adapter circuit board 102. Of course, the controller 101 and the adapter circuit board 102 can also achieve electrical contact connection in other ways, such as welding.

[0071] In addition, the power strip is arranged on a side of the controller 101 close to the adapter circuit board 102, and the port 1021 is arranged on a side of the adapter circuit board 102 close to the controller 101. When there are multiple power strips and multiple ports 1021, the power strips can be evenly distributed on the controller 101, and the ports 1021 can be evenly distributed on the adapter circuit board 102 to improve the stability of the electrical connection between the controller 101 and the adapter board.

[0072] It should be noted that the adapter circuit board 102 in the present application document may be a PCB (Printed circuit boards), and the port 1021 may be provided on the PCB.

[0073] Optional, Figure 7 A schematic diagram of the structure of a transfer circuit board 102 provided in an embodiment of the present application is shown in FIG. Figure 1 , 4 As shown in FIG. 7 , the adapter circuit board 102 is further provided with a control switch 108 .

[0074] The connection contact 109 of the conductor 104 on the adapter circuit board 102 is electrically connected to the port 1021 through the control switch 108 , so as to control the on and off of the voltage transmission between the adapter circuit board 102 and the controller 101 by turning on and off the control switch 108 .

[0075] In addition, the adapter circuit board 102 is electrically connected to the contact of the conductor 104, and the connection contact 109 of the two can be located on the adapter circuit board 102, and the control switch 108 can be connected between the connection contact 109 and the port 1021. When the control switch 108 is closed, the connection contact 109 and the port 1021 are connected, and the control circuit board and the controller 101 are also connected; when the control switch 108 is opened, the connection contact 109 and the port 1021 are disconnected, and the control circuit board and the controller 101 are also disconnected.

[0076] 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, which can reduce the external wiring of the circuit breaker.

[0077] It should be noted that circuit breakers often need 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 a withstand voltage test on a circuit breaker, it is necessary to manually disassemble the multiple connected voltage sampling lines 107, then input a high voltage, and then perform a withstand voltage test on the circuit breaker, which is inconvenient for manual operation and makes it inconvenient to perform a withstand voltage test on the circuit breaker.

[0078] In the embodiment of the present application, a control switch 108 is provided on the adapter circuit board 102. The switch 108 can be manually controlled to realize the on and off of the voltage transmission between the adapter circuit board 102 and the controller 101. When the circuit breaker is pre-tested for withstand voltage, the control switch 108 is disconnected, and the voltage transmission between the adapter circuit board 102 and the controller 101 is disconnected, and then the circuit breaker can be subjected to withstand voltage test. When the circuit breaker pre-implements the voltage sampling and analysis function, the control switch 108 is closed, and the voltage transmission between the adapter circuit board 102 and the controller 101 is turned on, and the voltage at the power terminal can be transmitted to the controller 101 through the conductive member 106, the conductor 104, and the circuit adapter board, so that the controller 101 can perform voltage sampling and analysis.

[0079] Of course, the control switch 108 may also be electrically connected to the controller 101, and the control switch 108 may be opened or closed by a control signal output by the controller 101, thereby realizing automatic control of the control switch 108. The embodiment of the present application does not impose any specific limitation on this.

[0080] Optional, Figure 8 This is a schematic diagram of the structure of a control switch 108 provided in an embodiment of the present application. The control switch 108 is a contact module 1081 , and a contact point 1082 is provided on the adapter circuit board 102 .

[0081] When the contact module 1081 performs a closing operation, the electrical connection between the connection contact 109 and the port 1021 is conducted; when the contact module 1081 performs an opening operation, the electrical connection between the connection contact 109 and the port 1021 is disconnected.

[0082] It should be noted that when the contact module 1081 is performing a closing operation, the control switch 108 is closed, and the electrical connection between the connecting contact 109 and the port 1021 is conducted, thereby making the electrical connection between the controller 101 and the adapter circuit board 102 conducted; when the contact module 1081 is performing an opening operation, the control switch 108 is disconnected, and the electrical connection between the connecting contact 109 and the port 1021 is disconnected, thereby making the electrical connection between the controller 101 and the adapter circuit board 102 disconnected.

[0083] Optionally, the contact 1082 includes: a group of contacts.

[0084] Among them, the contact 1082 is electrically connected to either the connecting contact 109 or the port 1021; when the contact module 1081 performs a closing operation, it is electrically connected to the other of the connecting contacts 109 or the port 1021, so that the electrical connection between the connecting contact 109 and the port 1021 is conducted; when the contact module 1081 performs an opening operation, it is electrically disconnected from the other of the connecting contacts 109 or the port 1021, so that the electrical connection between the connecting contact 109 and the port 1021 is disconnected.

[0085] In a possible implementation, 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. When the connection contact 109 and the contact 1082 are electrically connected, the electrical connection between the connection contact 109 and the port 1021 is connected, so that the electrical connection between the controller 101 and the adapter circuit board 102 is connected. When the contact module 1081 performs an opening operation, the contact module 1081 is electrically disconnected from the connection contact 109. When the connection contact 109 and the contact 1082 are electrically disconnected, the electrical connection between the connection contact 109 and the port 1021 is disconnected, so that the electrical connection between the controller 101 and the adapter circuit board 102 is disconnected.

[0086] Similarly, in another possible implementation, the contact 1082 is electrically connected to the connection contact 109. 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. When the contact module 1081 performs an opening operation, the contact module 1081 is electrically disconnected from the port 1021, and the connection contact 109 and the contact 1082 are electrically disconnected, and the electrical connection between the connection contact 109 and the port 1021 is disconnected.

[0087] It should be noted that when the contact 1082 is electrically connected to the connection contact 109, the number of the contact 1082 may be the same as the number of the connection contact 109, and one contact 1082 is electrically connected to one connection contact 109. The contact module 1081 may include a group of contacts, the number of the contacts may be the same as the number of the contact 1082, and the number of the contacts may be the same as the number of the ports 1021. When the contact module 1081 performs a closing operation, one contact is electrically connected to one port 1021.

[0088] In addition, when the contact 1082 is electrically connected to the port 1021, the number of the contact 1082 may be the same as the number of the port 1021, and one contact 1082 is electrically connected to one port 1021. The contact module 1081 may include a group of contacts, the number of the contacts may be the same as the number of the contact 1082, and the number of the contacts may be the same as the number of the connection contacts 109. When the contact module 1081 performs a closing operation, one contact is electrically connected to one connection contact 109.

[0089] Optionally, the contacts 1082 may include: a first group of contacts and a second group of contacts.

[0090] 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 .

[0091] In addition, when the contact module 1081 performs a closing operation, the first group of contacts is electrically connected to the second group of contacts, so that the electrical connection between the connecting contacts 109 and the port 1021 is conducted; when the contact module 1081 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 connecting contacts 109 and the port 1021 is disconnected.

[0092] In some embodiments, when the contact module 1081 performs a closing operation, the contact module 1081 can electrically connect the first group of contacts and the contact 1082 in the second group of contacts through the contact in the contact module 1081, and then the connection contact 109 and the port 1021 are electrically connected and conducted, and the controller 101 and the adapter circuit board 102 are electrically connected. When the contact module 1081 performs an opening operation, the contact module 1081 can electrically disconnect the first group of contacts and the contact 1082 in the second group of contacts, the contact 1082 and the port 1021 are electrically disconnected, and the controller 101 and the adapter circuit board 102 are electrically disconnected.

[0093] 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. Figure 7 and 8 As shown, both can be 4, such as Figure 7As shown, the number of connecting contacts 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 connecting contact 109 .

[0094] Optionally, the circuit breaker further includes: an operating unit.

[0095] One end of the operating part is connected to the contact module 1081, and the other end of the operating part passes through the housing of the circuit breaker.

[0096] In some embodiments, when the user controls the contact module 1081, the user can perform a first operation on the operating portion, for example, a pressing operation, so that the pressure applied to the operating portion is transmitted to the contact module 1081, the contact module 1081 is pressed down, and the contact module 1081 can perform a closing operation. Correspondingly, when the user performs a second operation on the operating portion, for example, a pulling out operation, the contact module 1081 pops up, and the contact module 1081 can perform an opening operation.

[0097] In summary, an embodiment of the present application provides a circuit breaker, which includes: a circuit breaker body and a voltage sampling structure, the voltage sampling structure includes: a controller 101, an adapter circuit board 102, a transformer, and at least one conductor 104; each conductor 104 is respectively inserted into a housing 103 of the transformer, one end of the conductor 104 extends from a first side 1031 of the housing 103 of the transformer, and is in contact and electrically connected with the adapter circuit board 102, and the other end of the conductor 104 extends from a second side 1032 of the housing 103 of the transformer, and is in contact and electrically connected with a power terminal in the circuit breaker body; the adapter 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 adapter circuit board 102. The conductor 104 is inserted into the housing 103 of the transformer, one end of the conductor 104 is in electrical contact with the adapter circuit board 102, and the other end of the conductor 104 is in electrical contact with the power terminal. The adapter circuit board 102 is in electrical contact with the controller 101. 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. In addition, a control switch 108 is set on the adapter circuit board 102 to control the on and off of the voltage transmission between the adapter circuit board 102 and the controller 101 by turning on and off the control switch 108, avoiding the disassembly operation of the circuit breaker during the withstand voltage test, and only controlling the control switch 108, which is convenient for the withstand voltage test of the circuit breaker.

[0098] 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 variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circuit breaker, characterized in that: include: A circuit breaker body and a voltage sampling structure, wherein the voltage sampling structure comprises: a controller, a switching circuit board, a housing of a transformer, and at least one conductor; Each of the conductors is respectively inserted into the housing of the transformer, one end of the conductor extends from a first side of the housing of the transformer and is in contact and electrically connected with the adapter circuit board, and the other end of the conductor extends from a 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 adapter circuit board is in electrical contact with the controller, so that the controller samples and analyzes the voltage transmitted through the conductor and the adapter circuit board; 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 extends out from the second side of the shell of the transformer and is electrically connected to the power terminal arranged at the bottom of the base.

2. The circuit breaker according to claim 1, characterized in that: A through hole is provided at a first preset position on the bottom of the base, and a conductive member is provided in the through hole and is electrically connected to the power terminal through a voltage sampling line provided in the accommodating cavity; The other end of the conductor extends 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 in contact with and electrically connected to the conductive member.

3. The circuit breaker according to claim 1, characterized in that: The first side of the housing of the mutual inductor and the second side of the housing of the mutual inductor are two sides of the housing of the mutual inductor that are arranged opposite to each other.

4. The circuit breaker according to claim 1, characterized in that: The controller is provided with at least one power strip, the adapter circuit board is provided with at least one port, and the power strip and the port are pluggable and connected so that the controller and the adapter circuit board are electrically connected through the power strip.

5. The circuit breaker according to claim 4, characterized in that: The adapter circuit board is also provided with: a control switch; the connection contacts of the conductor on the adapter circuit board are electrically connected to the port through the control switch, so as to control the on and off of the voltage transmission between the adapter circuit board and the controller through the on and off of the control switch.

6. The circuit breaker according to claim 5, characterized in that: The control switch is a contact module, and the adapter circuit board has contacts; When the contact module performs a closing operation, the electrical connection between the connection contact and the port is conducted; When the contact module performs a disconnection operation, the electrical connection between the connection contact and the port is disconnected.

7. The circuit breaker according to claim 6, characterized in that: The contacts include: a group of contacts; The contact is electrically connected to any one of the connection contact or the port; When performing a closing operation, the contact module is electrically connected to the other of the connection contact or the port, so that the electrical connection between the connection contact and the port is conducted; When performing a switch-off operation, the contact module is electrically disconnected from the other of the connection contacts or the port, so that the electrical connection between the connection contacts and the port is disconnected.

8. The circuit breaker according to claim 6, characterized in that: The contacts include: a first group of contacts and a second group of contacts; The first group of contacts is electrically connected to the connection contacts, and the second group of contacts is electrically connected to the port; When the contact module performs a closing operation, the first group of contacts is electrically connected to the second group of contacts, so that the electrical connection between the connection contacts and the port is conducted; When the contact module performs a disconnection 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.

9. The circuit breaker according to claim 6, characterized in that: The circuit breaker further comprises: an operating unit; One end of the operating part is connected to the contact module, and the other end of the operating part passes through the housing of the circuit breaker.

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