Circuit breaker and power equipment

Abstract

The invention provides a circuit breaker and power equipment. The circuit breaker comprises a shell, an operating handle, an operating mechanism, a through-flow assembly, an arc extinguish chamber and a tripping control assembly. And the operating handle, the operating mechanism, the through-flow assembly and the arc extinguish chamber are sequentially arranged along the depth direction of the circuit breaker. The through-flow assembly comprises a moving contact assembly and a static contact. The moving contact assembly comprises a moving contact. The operating mechanism is connected with the moving contact assembly. The operating handle is used for controlling the operating mechanism to drive the moving contact assembly to move, so that the moving contact is in contact with or separated from the static contact. The arc extinguish chamber is used for eliminating electric arcs generated when the moving contact is separated from the static contact. And the tripping control assembly is in transmission connection with the operating mechanism. And the tripping control assembly is used for controlling the operating mechanism to drive the moving contact assembly to move when the fault current is detected, so that the moving contact is separated from the static contact. According to the circuit breaker, all the mechanisms are arranged in the depth direction of the circuit breaker, so that the overall size of the circuit breaker is changed, and the number of circuit breakers capable of being arranged in a cabinet is increased.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the priority of the Chinese patent application filed with the China Patent Office on October 13, 2023, with application number 202311330079.X and application name “A circuit breaker and power equipment”, all contents of which are incorporated by reference in this application. Technical Field

[0003] The present application relates to the technical field of communication equipment, and in particular to a circuit breaker and power equipment. Background Art

[0004] As artificial intelligence (AI), 5.5G, and autonomous driving technologies are gradually applied to people's daily lives and work, the demand for computing power from these technologies has also increased significantly. As a key area of ​​computing power support, data centers require ultra-high capacity and high density. As an indispensable core unit in modern data centers, uninterruptible power supplies (UPS) have been further miniaturized under the guidance of capacity upgrades and high-density trends.

[0005] In the power supply and distribution system of the data center, circuit breakers are usually required to realize the distribution of electric energy. As a key component in the power supply and distribution system, the circuit breaker not only plays the role of controlling the on and off of the circuit, but also has certain protection functions. Specifically, a mechanical switch can be set in the circuit breaker, and the staff can operate the mechanical switch to switch the closed or open state of the circuit breaker, thereby realizing the conduction or disconnection of the circuit. In addition, when the circuit has an overload, short circuit or other faults, the circuit breaker can also switch to the open state automatically to disconnect the current in the circuit, thereby realizing its protection function.

[0006] For data centers, as the size and power consumption of power conversion modules are further reduced, the current level will also increase. However, the internal space of existing cabinets is limited, resulting in large limitations on the layout and number of circuit breakers, which cannot meet the higher operating current requirements. Summary of the invention

[0007] The present application provides a circuit breaker and an electric power device to adjust the overall size of the circuit breaker to change the space occupied by the circuit breaker in a cabinet, thereby increasing the number of circuit breakers that can be arranged in the cabinet.

[0008] In a first aspect, the present application provides a circuit breaker. The circuit breaker includes a housing, an operating handle, an operating mechanism, a current-passing assembly, and an arc extinguishing chamber. Specifically, the operating mechanism is connected to the operating handle. At least the portion of the operating handle close to the operating mechanism, the operating mechanism, the current-passing assembly, and the arc extinguishing chamber are sequentially arranged in the housing along the depth direction of the circuit breaker. The current-passing assembly includes a moving contact assembly and a stationary contact, and the moving contact assembly includes a moving contact, and the moving contact can rotate relative to the housing. The operating mechanism is connected to the moving contact assembly and is used to drive the moving contact assembly to move so that the moving contact contacts or separates from the stationary contact. The operating handle is used to control the operating mechanism to drive the moving contact assembly to move so that the moving contact contacts or separates from the stationary contact. The arc extinguishing chamber is used to eliminate the arc generated when the moving contact separates from the stationary contact. In addition, the circuit breaker also includes a trip control assembly. The trip control assembly is arranged on one side of the moving contact assembly along the height direction of the circuit breaker, and the trip control assembly is transmission-connected to the operating mechanism. The trip control assembly is used to control the operating mechanism to drive the moving contact assembly to move when a fault current is detected, so as to separate the moving contact from the stationary contact.

[0009] The above-mentioned circuit breaker has a circuit breaker operating surface for the staff to perform closing and opening operations, check the working status of the circuit breaker and other operations. In the plane where the circuit breaker operating surface is located, the dimension of the circuit breaker along the direction in which the operating handle is pushed is the height, and the dimension of the circuit breaker perpendicular to the height direction is the width. The dimension of the circuit breaker along the direction perpendicular to the circuit breaker operating surface is the depth. The circuit breaker of the present application can be applied to a power supply and distribution system, and the circuit breaker can be specifically installed in a cabinet. Similarly, the cabinet has a user operating surface for the staff to perform control operations, installation and removal, or maintenance operations. The circuit breaker operating surface of the circuit breaker faces the same direction as the user operating surface. Taking the state where the cabinet is placed on the ground as an example, in the plane where the user operating surface is located, the dimension of the cabinet parallel to the ground is the width, and the dimension of the cabinet perpendicular to the ground is the height. The dimension of the cabinet perpendicular to the user operating surface is the depth. When multiple of the above-mentioned circuit breakers are installed in the cabinet, these circuit breakers are placed in parallel along the width direction of the cabinet, wherein the circuit breaker operation surface of the circuit breaker and the user operation surface of the cabinet face the same direction, and the height direction of each circuit breaker is in the same direction as the width direction of the cabinet, the width direction of each circuit breaker is in the same direction as the height direction of the cabinet, and the depth direction of each circuit breaker is in the same direction as the depth direction of the cabinet, that is, each circuit breaker is placed horizontally in the cabinet.

[0010] In each circuit breaker, the operating handle, operating mechanism, current-passing assembly and arc extinguishing chamber are arranged along the depth direction of the circuit breaker, specifically, the operating handle is arranged toward the operating surface of the circuit breaker, the operating mechanism is located on the side of the operating handle away from the operating surface of the circuit breaker, the current-passing assembly is located on the side of the operating mechanism away from the operating handle, and the arc extinguishing chamber is located on the side of the current-passing assembly away from the operating mechanism. In other words, the operating handle, operating mechanism, current-passing assembly and arc extinguishing chamber can be regarded as being arranged in a layered manner along the depth direction of the circuit breaker, which can reduce the layout of components of the circuit breaker along the height direction, thereby reducing the height dimension of the circuit breaker, and further reducing the occupied space of the circuit breaker, so as to increase the number of circuit breakers that can be laid out in the cabinet. Specifically, the operating handle is located on the first layer (electrical or manual operation layer), the operating mechanism is located on the second layer (operation layer), the current-passing assembly and the trip control assembly are located on the third layer (current-passing layer), and the arc extinguishing chamber is located on the fourth layer (arc extinguishing layer).

[0011] In a possible implementation, the operating mechanism specifically includes a connecting rod assembly, a locking assembly and a driving member. The connecting rod assembly is connected to the moving contact assembly, and the locking assembly and the driving member are respectively connected to one end of the connecting rod assembly away from the moving contact assembly. The end of the locking assembly away from the connecting rod assembly is transmission-connected to the trip control assembly, and the end of the driving member away from the connecting rod assembly is connected to the operating handle. Therefore, when a fault current occurs, the trip control assembly controls the locking assembly, the driving member, and the connecting rod assembly to move in sequence, and then drives the moving contact assembly to move, thereby separating the moving contact from the static contact to achieve opening. When performing a closing operation or an opening operation, the movement of the operating handle can drive the driving member to move, thereby driving the connecting rod assembly to move, so that the moving contact assembly moves and contacts or separates from the static contact to achieve closing or opening.

[0012] In a possible implementation, when the lock catch assembly is specifically provided, the housing is provided with a first rotating shaft and a second rotating shaft. The lock catch assembly includes a lock catch and a jump catch. The lock catch is provided on the first rotating shaft and rotates around the first rotating shaft. The jump catch is provided on the second rotating shaft and rotates around the second rotating shaft. One end of the lock catch is connected to the connecting rod assembly, and the other end is connected to the jump catch buckle, and the end points of the lock catch and the jump catch buckle are located on the side of the second rotating shaft away from the operating handle. Therefore, the trip control assembly is used to control the lock catch and the jump catch to unlock. When the lock catch and the jump catch are buckled, the lock catch assembly is locked, and the jump catch is used to limit the rotation of the lock catch, so that the closing and opening of the circuit breaker are realized only by the operating handle. When the lock catch and the jump catch are released, the lock catch moves under the action of the driving member, thereby driving the connecting rod assembly to move, so that the moving contact is separated from the static contact, and the opening is realized.

[0013] In the above circuit breaker, along the height direction, the tripper is located on the side of the lock away from the operating handle, so that the tripper and the lock are located on the same side of the operating handle to simplify the structure of the lock assembly and further improve the space utilization of the operating layer.

[0014] In a possible implementation, the lock assembly further includes a rotating fixed rod and a rotating half shaft. The rotating fixed rod is buckled at one end of the jumper away from the lock; the rotating half shaft is buckled at one end of the rotating fixed rod away from the jumper. The trip control assembly is used to drive the rotating half shaft to rotate, so as to sequentially unlock the rotating half shaft and the rotating fixed rod, the rotating fixed rod and the jumper, and the jumper and the lock, so that the lock rotates under the drive of the driving member, thereby realizing the tripping function of the trip control assembly.

[0015] In a possible implementation, the connecting rod assembly can be designed as a four-bar system. Specifically, the connecting rod assembly includes a first fixed rod, a first connecting rod, and a second connecting rod. The first fixed rod is connected to the moving contact assembly, and the first fixed rod is connected to the first connecting rod. One end of the first connecting rod away from the first fixed rod is rotatably connected to the second connecting rod. One end of the second connecting rod away from the first connecting rod is rotatably connected to the lock catch. One end of the driving member is connected to the operating handle, and the other end is connected to one end of the first connecting rod away from the first fixed rod. The connecting rod assembly is used to drive the moving contact assembly to rotate under the drive of the driving member.

[0016] The specific type of the above-mentioned trip control assembly is not limited. In a possible implementation, the trip control assembly includes a backup protector and a magnetic rod, and the magnetic rod can rotate relative to the housing. The backup protector is magnetically connected to the magnetic rod, and the magnetic rod is transmission-connected to the operating mechanism. The backup protector is used to magnetically attract the magnetic rod when the above-mentioned fault current is detected, so as to drive the operating mechanism to move.

[0017] In one possible implementation, the trip control assembly includes a thermal magnetic release body, a thermally deformable metal part, and a magnetic snapping device. The thermally deformable metal part is connected to the thermal magnetic release body, the thermally deformable metal part and the magnetic snapping device are respectively rotatably connected to the housing, and the thermally deformable metal part and the magnetic snapping device are respectively transmission-connected to the operating mechanism. Along the width direction of the circuit breaker, the thermal magnetic release body is located on one side of the operating mechanism. The thermal magnetic release body is used to cause the thermally deformable metal part to generate thermal deformation when a first fault current is detected, so that the thermally deformable metal part drives the operating mechanism to move; and when a second fault current is detected, the thermal magnetic release body quickly attracts the magnetic snapping device, so that the magnetic snapping device drives the operating mechanism to move.

[0018] In one possible implementation, the circuit breaker further includes a controller. The controller may be arranged on the same layer as the operating mechanism. Specifically, the controller is arranged on one side of the operating mechanism along the width direction of the circuit breaker. The trip control assembly includes a mutual inductor and a magnetic flux component. The mutual inductor is located on the third layer (current flow layer). The magnetic flux component is arranged on the same layer as the operating mechanism, that is, the magnetic flux component is located on the second layer (operating layer). The mutual inductor and the magnetic flux component are electrically connected to the controller respectively. The mutual inductor is arranged on one side of the moving contact assembly along the height direction of the circuit breaker, and is used to send a fault current signal to the controller when the above-mentioned fault current is detected. The magnetic flux component is located between the controller and the operating mechanism, and is transmission-connected to the operating mechanism. The controller is used to control the magnetic flux component to drive the operating mechanism to move according to the fault current signal.

[0019] In a possible implementation, when the moving contact assembly is specifically provided, the moving contact assembly further includes a housing and a second spring located in the housing. The housing is rotatably connected to the outer shell and is transmission-connected to the operating mechanism; the stationary contact is located on the side of the housing away from the operating mechanism, the moving contact is located in the housing and extends out of the housing in a direction away from the operating mechanism, and one end of the moving contact located in the housing is rotatably connected to the outer shell. One end of the first spring is connected to the moving contact, and the other end is connected to the housing. The housing is used to push the moving contact to rotate under the drive of the operating mechanism.

[0020] In a possible implementation, the current-carrying assembly further includes a wire, and a first copper bar and a second copper bar that are arranged opposite to each other in the height direction, and the first copper bar and the second copper bar extend to both sides of the arc extinguishing chamber in the depth direction of the circuit breaker. The end of the first copper bar close to the operating mechanism is electrically connected to the moving contact through a wire, and the end of the first copper bar away from the operating mechanism is provided with a first joint. The static contact is arranged on the second copper bar and electrically connected to the second copper bar, and the end of the second copper bar away from the operating mechanism is provided with a second joint. In this implementation, the first copper bar and the second copper bar are arranged using the space on both sides of the arc extinguishing chamber, and the first joint and the second joint are arranged in the depth direction, thereby further reducing the height dimension of the circuit breaker.

[0021] In a possible implementation, the moving contact includes a rotating rod and a contact, the rotating rod is located in the housing and is rotatably connected to the housing, and one end of the rotating rod away from the operating mechanism extends out of the housing. The contact is connected to the side of the rotating rod away from the operating mechanism, and the wire is connected to the rotating rod. Therefore, the wire is arranged in the space between the moving contact assembly, the arc extinguishing chamber and the trip control assembly, thereby improving space utilization. In addition, when the operating mechanism drives the moving contact assembly to move, the wire will not interfere with the movement of the operating mechanism, and it is avoided that the wire accidentally touches the operating mechanism and causes the operating mechanism to be energized.

[0022] The specific structural form of the above-mentioned first joint and the second joint is not limited. In a possible implementation, the first joint includes two first metal pressing plates arranged opposite to each other, and a first elastic retainer. The two first metal pressing plates are connected to the side of the first copper bar away from the operating mechanism, and the two first metal pressing plates are formed at one end away from the first copper bar to form a first socket, and the first socket is used to be plugged with the first cable. The first elastic retainer is connected to the two first metal pressing plates, and is used to keep the two first metal pressing plates pressed against each other. Similarly, the second joint includes two second metal pressing plates arranged opposite to each other, and a second elastic retainer. Two second flexible metal plates are connected to the side of the second copper bar away from the operating mechanism, and the two second metal pressing plates are formed at one end away from the second copper bar to form a second socket, and the second socket is used to be plugged with the second cable. The second elastic retainer is connected to the two second metal pressing plates, and is used to keep the two second metal pressing plates pressed against each other.

[0023] In a possible implementation, the first joint includes a first transfer copper bar, which is located on a side of the first copper bar close to the arc extinguishing chamber and is fixedly connected to the first copper bar. The second joint includes a second transfer copper bar, which is located on a side of the second copper bar close to the arc extinguishing chamber and is fixedly connected to the second copper bar. The above-mentioned circuit breaker may also include a first clamp and a second clamp. The first clamp is arranged near the first transfer copper bar and is fixedly connected to the shell. The first clamp includes a first metal piece in an I-shape, one end of the first metal piece is opened and plugged with the first transfer copper bar, and the other end is opened for plugging with the first cable. The second clamp is arranged near the second transfer copper bar and is fixedly connected to the shell. The second clamp includes a second metal piece in an I-shape, one end of the second metal piece is opened and plugged with the second transfer copper bar, and the other end is opened for plugging with the second cable. This implementation can reduce the distance between the first clamp and the second clamp, and further reduce the height of the circuit breaker.

[0024] In a possible implementation, an arc spray port is provided at one end of the housing away from the operating handle, and the arc spray port is arranged toward the depth direction of the circuit breaker. The arc extinguishing chamber is located between the arc spray port and the flow assembly, so that the arc extinguishing chamber discharges gas from the arc spray port along the depth direction of the circuit breaker after the arc is extinguished.

[0025] In a possible implementation, the arc extinguishing chamber may include a plurality of arc extinguishing sheets, and the plurality of arc extinguishing sheets are arranged in an arc shape. In the circuit breaker, the arc extinguishing channel formed by the plurality of arc extinguishing sheets may extend from the top to the bottom along the height direction of the circuit breaker, thereby increasing the channel length, which is conducive to achieving zero arcing and zero breakdown, thereby improving the safety of the circuit breaker.

[0026] In a possible implementation, the circuit breaker may further include an arc extinguishing module. Along the depth direction of the circuit breaker, the arc extinguishing module is arranged on the side of the arc outlet away from the arc extinguishing chamber, and the arc extinguishing module is used to purify the gas ejected from the arc outlet. The arc extinguishing module can be regarded as being arranged on one side of the arc extinguishing chamber along the depth direction of the circuit breaker in a layered manner to reduce the layout of components of the circuit breaker along the height direction, thereby reducing the height dimension of the circuit breaker, and then reducing the occupied space of the circuit breaker, so as to increase the number of circuit breakers that can be laid out in the cabinet. Specifically, the arc extinguishing module is located on the fifth layer (arc extinguishing layer).

[0027] In the second aspect, the present application provides an electric power device. The electric power device includes a cabinet, and a plurality of circuit breakers of the first aspect, wherein the aforementioned plurality of circuit breakers are sequentially arranged in the cabinet along the width direction of the cabinet, and the height direction of the circuit breaker is in the same direction as the width direction of the cabinet, the width direction of the circuit breaker is in the same direction as the height direction of the cabinet, and the depth direction of the circuit breaker is in the same direction as the depth direction of the cabinet. In the electric power device of the present application, the operating handle, operating mechanism, current-passing assembly and arc extinguishing chamber inside the circuit breaker are arranged along the depth direction of the circuit breaker, which can reduce the height dimension of the circuit breaker. Therefore, when installing the aforementioned plurality of circuit breakers, the circuit breaker can be installed horizontally in the cabinet, that is, the height direction of the circuit breaker is in the same direction as the width direction of the cabinet, so as to increase the number of circuit breakers that can be arranged in the cabinet, thereby meeting higher requirements for power supply and operating current.

[0028] In a third aspect, the present application provides an electric power device. The electric power device includes a cabinet, and a plurality of circuit breakers of the first aspect, wherein the aforementioned plurality of circuit breakers are sequentially arranged in the cabinet along the width direction of the cabinet, and the height direction of the circuit breaker is in the same direction as the width direction of the cabinet, the width direction of the circuit breaker is in the same direction as the height direction of the cabinet, and the depth direction of the circuit breaker is in the same direction as the depth direction of the cabinet. An arc spray port is provided at one end of the housing away from the operating handle, and the arc spray port is arranged toward the depth direction of the circuit breaker. The side of the cabinet close to the arc spray port is used for plugging with the circuit breaker; the cabinet also includes an arc extinguishing module, which is located at the arc spray port and is used to purify the gas ejected from the arc spray port. In the electric power device of the present application, the operating handle, operating mechanism, current-passing assembly and arc extinguishing chamber inside the circuit breaker are arranged along the depth direction of the circuit breaker, which can reduce the height dimension of the circuit breaker. Therefore, when installing the above-mentioned multiple circuit breakers, the circuit breakers can be installed horizontally in the cabinet, that is, the height direction of the circuit breaker is in the same direction as the width direction of the cabinet, so as to increase the number of circuit breakers that can be arranged in the cabinet, thereby meeting higher requirements for power supply and operating current. In addition, the arc extinguishing module can be directly set in the cabinet, and the arc extinguishing module and the circuit breaker can be installed and removed by plugging and unplugging the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of an application scenario of a circuit breaker provided in an embodiment of the present application;

[0030] Figure 2 A schematic diagram of another application scenario of the circuit breaker provided in an embodiment of the present application;

[0031] Figure 3 A schematic diagram of a circuit breaker provided in an embodiment of the present application;

[0032] Figure 4 for Figure 3 A cross-sectional view of the circuit breaker along the AA direction;

[0033] Figure 5 A schematic diagram of a circuit breaker in a closed state provided in an embodiment of the present application;

[0034] Figure 6 Another cross-sectional view of a circuit breaker provided in an embodiment of the present application;

[0035] Figure 7 for Figure 6 Another schematic diagram of the circuit breaker in;

[0036] Figure 8 for Figure 6 Another schematic diagram of the circuit breaker in;

[0037] Fig. 9 Another cross-sectional view of a circuit breaker provided in an embodiment of the present application;

[0038] Fig.10 A partial cross-sectional view of a circuit breaker provided in an embodiment of the present application;

[0039] Fig.11 Another cross-sectional view of a circuit breaker provided in an embodiment of the present application;

[0040] Fig.12 Another partial cross-sectional view of the circuit breaker provided in the embodiment of the present application;

[0041] Fig.13 Another cross-sectional view of a circuit breaker provided in an embodiment of the present application;

[0042] Fig.14 Another cross-sectional view of a circuit breaker provided in an embodiment of the present application;

[0043] Fig.15 Another cross-sectional view of a circuit breaker provided in an embodiment of the present application;

[0044] Fig.16 Another cross-sectional view of a circuit breaker provided in an embodiment of the present application;

[0045] Fig.17 A schematic diagram of a circuit breaker in an open state provided in an embodiment of the present application;

[0046] Fig.18 Another schematic diagram of a circuit breaker in an open state provided in an embodiment of the present application;

[0047] Fig.19 Another schematic diagram of a circuit breaker provided in an embodiment of the present application;

[0048] Fig. 20 Another schematic diagram of a circuit breaker provided in an embodiment of the present application;

[0049] Fig.21 Another schematic diagram of a circuit breaker provided in an embodiment of the present application;

[0050] Fig. 22 Another schematic diagram of a circuit breaker provided in an embodiment of the present application.

[0051] Reference numerals:

[0052] 01-Power supply and distribution system 02-Power module 10-Power equipment

[0053] 11-cabinet 20-circuit breaker 21-housing

[0054] 22-operating handle 23-operating mechanism 24-flow assembly

[0055] 25-arc extinguishing chamber 26-tripping control component 27-arc extinguishing module

[0056] 110- user operation surface 210- circuit breaker operation surface 211- arc spray port

[0057] 231- connecting rod assembly 232- locking assembly 241- moving contact assembly

[0058] 242-static contact 243-wire 244-first copper bar

[0059] 245-second copper bar 246-first joint 247-second joint

[0060] 248-first clamp 249-second clamp 251-arc extinguishing piece

[0061] 261- backup protector 262- mutual inductor 263- magnetic flux component

[0062] 2411-moving contact 2412-housing 2441-welded copper bar

[0063] 2512-first arc-starting piece 2513-second arc-starting piece 2631-thimble DETAILED DESCRIPTION

[0064] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0065] In order to facilitate understanding of the circuit breaker provided in the embodiment of the present application, the application scenario thereof is described below. The circuit breaker provided in the embodiment of the present application can be widely used in various power supply and distribution systems. Figure 1 A schematic diagram of an application scenario of a circuit breaker provided in an embodiment of the present application. Figure 1 As shown, in an example provided in the present application, the circuit breaker can be used in a power supply and distribution system 01 of a data center to connect, carry, and disconnect the current between the power supply network and the data center. The power supply and distribution system 01 may include a power supply module 02 (such as Figure 1 As shown in the figure, there are a power module 02) and a plurality of circuit breakers formed by a plurality of UPS connected in series. For example, the power supply and distribution system 01 is provided with three circuits, namely the first circuit C1, the second circuit C2, and the third circuit C3. A circuit breaker is provided in each circuit, wherein the first circuit C1 is connected to the power module 02, and a first circuit breaker K1 is provided at the input end of the power module 02, and a second circuit breaker K2 is provided at the output end; the second circuit C2 is connected to the bypass module, and a third circuit breaker K3 is provided at one end of the bypass module, and the other end is connected to the second circuit breaker K2; the third circuit C3 is a standby circuit, and a fourth circuit breaker K4 is provided.

[0066] When it is necessary to connect the circuit between the power supply network (or power supply) and the data center, the first circuit breaker K1 and the second circuit breaker K2 can be switched to the closed state; when it is necessary to disconnect the circuit between the power supply network and the data center, the first circuit breaker K1 or the second circuit breaker K2 can be switched to the open state. In this way, the power-on and power-off states of the data center are controlled by controlling the closed state and the open state of the circuit breaker. When the electrical equipment in the data center needs to be inspected and maintained, the first circuit breaker K1 and the second circuit breaker K2 can be switched to the open state, and the third circuit breaker K3 or the fourth circuit breaker K4 can be switched to the closed state, so as to facilitate the inspection and maintenance of the electrical equipment.

[0067] In addition, the circuit breaker of the present application can also be used in the power supply and distribution system of enterprise power equipment or public power equipment to connect, carry, and disconnect the current between the power supply network and enterprise power equipment or public power equipment. For example, when the power equipment (such as 4G base stations, 5G base stations, etc.) needs to work normally, the staff can switch the circuit breaker to the closed state so that the power supply network can provide the power required for normal operation to the power equipment. When the power equipment needs to be inspected and maintained, the staff can switch the circuit breaker to the open state to facilitate the inspection and maintenance of the power equipment.

[0068] Figure 2This is another schematic diagram of an application scenario of the circuit breaker provided in the embodiment of the present application. Figure 2 As shown, the power supply system may specifically include a plurality of power devices 10. Each power device 10 includes a cabinet 11, and a plurality of power modules and a plurality of circuit breakers (K1, ..., Km) located in the cabinet 11. Among them, the side of the cabinet 11 facing the staff is a user operating surface 110. In the present application, taking the state where the cabinet 11 is placed on the ground as an example, the dimension of the user operating surface 110 parallel to the ground is the width W, the dimension perpendicular to the ground is the height H, and the dimension perpendicular to the user operating surface 110 is the depth D. The aforementioned multiple power modules are stacked in sequence along the height H direction of the cabinet 11, and the aforementioned multiple circuit breakers are placed in sequence on one side of the aforementioned multiple power modules along the width W direction of the cabinet 11. Among them, the power module is used to convert the voltage from the power grid to output an adapted voltage to the load device. Specifically, the power module may be an AC / AC module or an AC / DC module.

[0069] In existing power equipment, due to the limited width W and height H of the cabinet, the number of circuit breakers on the user operation surface 110 is limited, which cannot meet the large-capacity and high-density layout requirements of the power supply and distribution system.

[0070] Therefore, the present application provides a circuit breaker and an electric power device to adjust the overall size of the circuit breaker to change the space occupied by the circuit breaker in the cabinet, thereby increasing the number of circuit breakers that can be arranged in the cabinet.

[0071] It should be noted that the terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting of the present application. As used in the specification and appended claims of the present application, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear indication to the contrary in the context.

[0072] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0073] Figure 3A schematic diagram of a circuit breaker provided in an embodiment of the present application, Figure 4 for Figure 3 A cross-sectional view of the circuit breaker along the AA direction. Figure 5 A schematic diagram of a circuit breaker in a closed state provided in an embodiment of the present application. Figure 3 , Figure 4 and Figure 5 As shown, the circuit breaker 20 includes a housing 21, an operating handle 22, an operating mechanism 23, a current-passing assembly 24 and an arc extinguishing chamber 25. Specifically, the operating handle 22 is connected to the operating mechanism 23. At least the portion of the operating handle 22 close to the operating mechanism 23, the operating mechanism 23, the current-passing assembly 24 and the arc extinguishing chamber 25 are located in the housing 21 and are arranged in sequence along the depth direction of the circuit breaker. In one embodiment, the end of the operating handle 22 away from the operating mechanism 23 can extend out of the housing 21 so that the staff can push the operating handle 22 to perform closing and opening operations. In another embodiment, the housing 21 is provided with a knob to realize the opening and closing of the circuit breaker 20 by manual operation of the knob. Specifically, the end of the operating handle 22 away from the operating mechanism 23 is connected to the knob. When the staff performs manual operation of the knob, the knob is turned and the operating handle 22 is driven to be pushed in the height direction. In another embodiment, the circuit breaker 20 may further include a remote controller and an electric operating device, the electric operating device is connected to the operating handle 22 and is connected to the remote controller to realize the opening and closing of the circuit breaker 20 by electric operation. When the staff performs electric operation, a closing command or an opening command is sent to the remote controller, and the remote controller can control the electric operating device to push the operating handle 22. In this embodiment, the staff can approach the circuit breaker 20 to issue a command, or can also issue a command remotely through a communication device. In addition, the operating mechanism 23 is located on one side of the operating handle 22 and is transmission-connected to the operating handle 22. The flow assembly 24 is located on the side of the operating mechanism 23 away from the operating handle 22. The flow assembly 24 includes a moving contact assembly 241 and a stationary contact 242, and the moving contact assembly 241 includes a moving contact 2411, and the moving contact 2411 can rotate relative to the housing 21. The moving contact 2411 is used to contact and electrically connect with the stationary contact 242. The operating mechanism 23 is connected to the moving contact assembly 241, and is used to drive the moving contact assembly 241 to move, so that the moving contact 2411 is in contact with or separated from the stationary contact 242. The operating handle 22 is used to control the operating mechanism 23 to drive the moving contact 2411 to move, so that the moving contact 2411 is in contact with or separated from the stationary contact 242. The arc extinguishing chamber 25 is used to extinguish the arc generated when the moving contact 2411 is separated from the stationary contact 242.

[0074] In the present application, the side of the operating handle 22 extending out of the housing 21 is the circuit breaker operating surface 210. Taking the circuit breaker operating surface 210 as an example, the dimension of the circuit breaker 20 along the pushing direction of the operating handle 22 is the height h, the dimension perpendicular to the height h is the width w, and the dimension perpendicular to the circuit breaker operating surface 210 is the depth d. The first direction is the depth d direction of the circuit breaker 20. In other words, the operating handle 22, the operating mechanism 23, the current-passing assembly 24 and the arc extinguishing chamber 25 are sequentially arranged along the depth d direction of the circuit breaker 20. When the circuit breaker 20 is placed in the cabinet 11, the height h direction of the circuit breaker 20 is in the same direction as the width W direction of the cabinet 11, the width w direction of the circuit breaker 20 is in the same direction as the height H direction of the cabinet 11, and the depth d direction of the circuit breaker 20 is in the same direction as the depth D direction of the cabinet 11. Therefore, when the staff performs the closing operation or the opening operation on the circuit breaker 20, the staff pushes the operating handle 22 along the width W direction of the cabinet 11. When the operating handle 22 is pushed to perform the opening or closing operation, the operating mechanism 23 can move with the operating handle 22 to drive the moving contact 2411 to separate or contact with the static contact 242. When the moving contact 2411 is in contact with the static contact 242, the circuit breaker 20 is in the closing state; when the moving contact 2411 is separated from the static contact 242, the circuit breaker 20 is in the opening state. In the circuit breaker 20 of the present application, the operating handle 22, the operating mechanism 23, the current passing assembly 24 and the arc extinguishing chamber 25 are arranged along the depth d direction of the circuit breaker 20, and are considered to be arranged in a layered form, so that the height h of the circuit breaker 20 can be reduced, and the occupied space of the circuit breaker 20 can be reduced, so as to increase the number of circuit breakers 20 that can be arranged in the cabinet 11. Specifically, the operating handle 22 is located at the first layer (electrical or manual operation layer), the operating mechanism 23 is located at the second layer (operation layer), the current passing component 24 is located at the third layer (current passing layer), and the arc extinguishing chamber 25 is located at the fourth layer (arc extinguishing layer).

[0075] Please continue reading Figure 5 As shown, the circuit breaker 20 further includes a trip control assembly 26, which is arranged on one side of the moving contact assembly 241 along the height h direction of the circuit breaker 20 and is transmission-connected to the operating mechanism 23. The trip control assembly 26 is located in the third layer (current-passing layer). The trip control assembly 26 is used to control the operating mechanism 23 to drive the moving contact 2411 and the static contact 242 to separate when a fault current is detected. In this embodiment, the fault current may include a short-circuit current, a first fault current, and a second fault current, the first fault current is less than the second fault current, and the second fault current is less than the short-circuit current, and the specific thresholds of the first fault current and the second fault current can be set according to actual applications.

[0076] The specific type of the above-mentioned trip control component 26 is not limited. In one embodiment, the trip control component 26 may include a backup protector 261 and a magnetic rod PN. The magnetic rod PN can rotate around point P relative to the housing 21. The backup protector 261 is magnetically connected to the magnetic rod PN, so that the magnetic rod PN rotates around point P relative to the housing 21. The magnetic rod PN is transmission-connected to the operating mechanism 23. The backup protector 261 is used to magnetically attract the magnetic rod PN and rotate the magnetic rod PN counterclockwise when a fault current is detected, and drive the operating mechanism 23 to move through the magnetic rod PN.

[0077] In another embodiment, the trip control assembly 26 includes a thermal magnetic release body, a thermally deformable metal part, and a magnetic snapping device. The thermally deformable metal part is connected to the thermal magnetic release body, and the thermally deformable metal part and the magnetic snapping device are respectively rotatably connected to the housing 21, and the thermally deformable metal part and the magnetic snapping device are respectively transmission-connected to the operating mechanism 23. Along the width w direction of the circuit breaker 20, the thermal magnetic release body is located on one side of the operating mechanism 23. The thermal magnetic release body is used to cause the thermally deformable metal part to deform due to heat accumulation when a first fault current is detected, so that the thermally deformable metal part pushes the rotating half shaft LM of the operating mechanism 23 to rotate; and when a second fault current is detected, the thermal magnetic release body quickly attracts the magnetic snapping device, so that the magnetic snapping device pushes the rotating half shaft LM of the operating mechanism 23 to rotate.

[0078] like Figure 5 As shown, in one embodiment, the circuit breaker 20 further includes a controller, which is arranged on one side of the operating mechanism 23 along the width d direction of the circuit breaker 20. The trip control assembly 26 specifically includes a mutual inductor 262, which is electrically connected to the controller. The mutual inductor 262 is arranged on one side of the moving contact assembly 241 along the height h direction of the circuit breaker 20, and can be specifically arranged on the side of the backup protector 261 away from the moving contact assembly 241. The mutual inductor 262 is used to send a fault current signal to the controller through the mutual inductor line when a fault current is detected. Figure 6 Another cross-sectional view of the circuit breaker provided in the embodiment of the present application, Figure 7 for Figure 6 Another schematic diagram of the circuit breaker in Figure 8 for Figure 6 Another schematic diagram of the circuit breaker in FIG. Figure 6 , Figure 7 and Figure 8As shown, the trip control assembly 26 may also include a magnetic flux component 263, and the magnetic flux component 263 is electrically connected to the controller. The magnetic flux component 263 has a pin 2631, and a rotating fixed rod LW is provided on the side of the pin 2631 close to the rotating half shaft LM of the operating mechanism 23. The pin 2631 can extend out of the housing of the magnetic flux component 263 and push the rotating fixed rod LW to rotate, so that the rotating fixed rod LW pushes the rotating half shaft LM to rotate. The controller is used to control the magnetic flux component 263 to drive the pin 2631 to extend out of the housing of the magnetic flux component 263 according to the fault current signal, thereby pushing the rotating half shaft LM to rotate clockwise to drive the operating mechanism 23 to move.

[0079] Fig. 9 Another cross-sectional view of the circuit breaker provided in the embodiment of the present application, Fig.10 A partial cross-sectional view of a circuit breaker provided in an embodiment of the present application. Fig. 9 and Fig.10 As shown, in one embodiment, the operating mechanism 23 includes a connecting rod assembly 231, a locking assembly 232 and a driving member BQ. The connecting rod assembly 231 is connected to the moving contact assembly 241, the locking assembly 232 and the driving member BQ are respectively connected to one end of the connecting rod assembly 231 away from the moving contact assembly 241, the end of the locking assembly 232 away from the connecting rod assembly 231 is transmission-connected to the tripping control assembly 26, and the end of the driving member BQ away from the connecting rod assembly 231 is connected to the operating handle 22. The locking assembly 232 is used to drive the driving member BQ to move under the control of the tripping control assembly 26. The driving member BQ is used to drive the connecting rod assembly 231 to move under the drive of the operating handle 22, so as to move the moving contact assembly 241, thereby realizing the contact or separation between the moving contact 2411 and the static contact 242. The driving member BQ is also used to drive the connecting rod assembly 231 to move under the drive of the trip control assembly 26, so as to move the moving contact assembly 241, thereby realizing the separation of the moving contact 2411 and the static contact 242.

[0080] Fig.11 Another cross-sectional view of the circuit breaker provided in the embodiment of the present application, Fig.12 Another partial cross-sectional view of the circuit breaker provided in the embodiment of the present application. Fig.11 and Fig.12As shown, specifically, the lock assembly 232 includes a lock CDF and a jumper GH. The housing 21 is provided with a first rotating shaft D and a second rotating shaft G. The lock CDF is sleeved on the first rotating shaft D and can rotate around the first rotating shaft D, and the jumper GH is sleeved on the second rotating shaft G and can rotate around the second rotating shaft G. One end of the lock CDF is connected to the connecting rod assembly 231, and the other end is connected to the jumper GH buckle. The jumper GH is used to limit the rotation stroke of the lock CDF. In one embodiment, the end point F of the lock CDF and the jumper GH buckle is located on the side of the second rotating shaft G away from the operating handle 22, so that the lock CDF and the jumper GH are located on the same side of the operating handle 22 along the height h direction of the circuit breaker 20. In this embodiment, along the height h direction of the circuit breaker 20, the jumper GH can be specifically located on the side of the lock CDF away from the operating handle 22, so that the lock assembly 232 is arranged from the top to the operating handle 22 along the height h direction of the circuit breaker 20, so as to make full use of the space of the circuit breaker 20 along the height h direction. Fig.13 Another cross-sectional view of the circuit breaker provided in the embodiment of the present application, Fig.14 Another cross-sectional view of the circuit breaker provided in the embodiment of the present application. Fig.13 and Fig.14 As shown, of course, in another embodiment, the end point F of the lock buckle CDF and the jump buckle GH can also be located on the side of the operating handle 22 away from the second rotating axis G, so that the lock buckle CDF and the jump buckle GH are located on both sides of the operating handle 22.

[0081] Please continue reading Fig.11 and Fig.12 The lock assembly 232 may further include a rotation fixing rod KIJ and a rotation semi-axle LM. The rotation fixing rod KIJ is buckled on the end of the jumper GH away from the lock CDF. The rotation semi-axle LM is buckled on the end of the rotation fixing rod KIJ away from the jumper GH. The release control assembly 26 is used to drive the rotation semi-axle LM to rotate, so as to sequentially unlock the rotation semi-axle LM and the rotation fixing rod KIJ, the rotation fixing rod KIJ and the jumper GH, and the jumper GH and the lock CDF, so that the lock CDF rotates under the drive of the driving member BQ.

[0082] like Figure 5 and Fig.11As shown, the connecting rod assembly 231 includes a first fixed rod OA, a first connecting rod AB and a second connecting rod BC. The first fixed rod OA, the first connecting rod AB, the second connecting rod BC, and the virtual connecting rod OC form a four-bar system. Specifically, the first fixed rod OA is connected to the moving contact assembly 241, and the first fixed rod OA is connected to the first connecting rod AB. The end of the first connecting rod AB away from the first fixed rod OA is rotatably connected to the second connecting rod BC. The end of the second connecting rod BC away from the first connecting rod AB is rotatably connected to the lock CDF. One end of the driving member BQ is connected to the operating handle 22, and the other end is connected to the end of the first connecting rod AB away from the first fixed rod OA.

[0083] Fig.15 Another cross-sectional view of the circuit breaker provided in the embodiment of the present application, Fig.16 Another cross-sectional view of the circuit breaker provided in the embodiment of the present application. Fig.15 and Fig.16 As shown, the moving contact assembly 241 specifically includes a housing 2412, a moving contact 2411, and a first spring ST located in the housing 2412. The housing 2412 is rotatably connected to the housing 21, and the housing 2412 is fixedly connected to the first fixing rod OA. The static contact 242 is located on the side of the housing 2412 away from the operating mechanism 23. The moving contact is located in the housing 2412 and extends out of the housing 2412 in a direction away from the operating mechanism 23. One end of the moving contact 2411 located in the housing 2412 is rotatably connected to the housing 21 and can rotate around point O' (overlapping with point O). The first spring ST can extend into the housing 2412 and can rotate relative to the housing 21 around the rotation center O', and the contact point between the moving contact 2411 and the housing 2412 is point E. One end of the first spring ST is connected to the moving contact 2411, and the other end is connected to the housing 2412. The housing 2412 is used to push the moving contact 2411 to rotate under the drive of the first fixing rod OA of the operating mechanism 23 .

[0084] In one embodiment, the moving contact 2411 includes a rotating rod and a contact. The rotating rod is located in the housing 2412 and is rotatably connected to the housing 21, that is, the rotating rod can rotate around the O' point. The end of the rotating rod away from the operating mechanism 23 extends out of the housing 2412. The contact is connected to the side of the rotating rod away from the operating mechanism 23. In this embodiment, the rotating rod is provided with a hook T, one end of the first spring ST is connected to the hook T, and the other end is connected to the S point of the housing 2412. When the circuit breaker 20 is closed, the first spring ST applies a pulling force to the moving contact 2411, so that the moving contact 2411 and the static contact 242 are kept under pressure when closing.

[0085] In the above embodiment, the moving contact assembly 241 may include a plurality of moving contacts 2411 and a plurality of first springs ST arranged corresponding to the plurality of moving contacts 2411. One end of the first spring ST is fixedly connected to the corresponding moving contact 2411, and the other end is fixedly connected to the housing 2412.

[0086] Fig.17 A schematic diagram of a circuit breaker in an open state provided in an embodiment of the present application. Figure 5 and Fig.17 As shown, in actual application, the staff can manually push the operating handle 22 in the direction of height h. Specifically, when the circuit breaker 20 is in the closed state, the operating handle 22 is pushed in the direction of height h to perform the opening operation. When the operating handle 22 is pushed downward, the operating handle 22 rotates clockwise around point R. During the rotation process, the operating handle 22 pulls the driving member BQ to rotate clockwise, so that point B moves downward in the direction of height h, and when point B moves from one side of point C to the other side in the direction of height h, the driving member BQ applies a pulling force to the connecting rod assembly 231 and the locking assembly 232. At this time, point B of the connecting rod assembly 231 moves to the right under the pulling force of the driving member BQ, thereby pulling the first connecting rod AB to move to the right. The first fixed rod OA is subjected to the pulling force of the first connecting rod AB at point A, so that the first fixed rod OA drives the housing 2412 to rotate clockwise around point O. During the rotation of the housing 2412, the contact point E between the housing 2412 and the moving contact 2411 is subjected to thrust, causing the moving contact 2411 to rotate clockwise around the point O, thereby separating from the stationary contact 242 and achieving the opening of the switch. At the same time, in the lock assembly 232, the lock CDF is subjected to a counterclockwise torque under the pulling force of the driving member BQ. However, since the buckle between the rotating half shaft LM and the rotating fixed rod KIJ is in a locked state, the buckle between the rotating fixed rod KIJ and the jump buckle GH, and the buckle between the jump buckle GH and the lock CDF cannot be unlocked, so that the lock CDF remains stationary, that is, the lock assembly 232 is in a locked state.

[0087] Please continue reading Figure 5 and Fig.17, when the circuit breaker 20 is in the open state, the operating handle 22 is pushed in the direction of height h to perform the closing operation. When the operating handle 22 is pushed upward, the operating handle 22 rotates counterclockwise around point R. During the rotation process, the operating handle 22 pulls the driving member BQ to rotate counterclockwise, so that point B moves upward in the direction of height h, and when point B moves from one side of point C to the other side in the direction of height h, the driving member BQ applies a pulling force to the connecting rod assembly 231 and the locking assembly 232. At this time, point B of the connecting rod assembly 231 moves to the left under the pulling force of the driving member BQ, thereby pulling the first connecting rod AB to move to the left. The first fixed rod OA is subjected to the pulling force of the first connecting rod AB at point A, so that the first fixed rod OA drives the housing 2412 to rotate counterclockwise around point O. During the rotation of the housing 2412, the moving contact 2411 is pushed by the housing 2412, so that the moving contact 2411 rotates counterclockwise around the point O, thereby contacting the stationary contact 242 to achieve closing. At the same time, the lock assembly 232 is still in a locked state, so that the lock CDF, the jumper GH, the rotation fixing rod KIJ, and the rotating half shaft LM are in a stationary state.

[0088] Fig.18 Another schematic diagram of a circuit breaker in an open state provided in an embodiment of the present application. Figure 5 and Fig.18As shown, the staff can perform the tripping operation on the circuit breaker 20 through a variety of auxiliary parts. Specifically, when the circuit breaker 20 is in the closed state, when the trip control component 26 detects a fault current, the trip control component 26 drives the rotating half shaft LM to rotate clockwise. The rotating half shaft LM is unlocked with the rotating fixed rod KIJ during the rotation process. As described above, in the closed state, the lock CDF is subjected to a counterclockwise rotating torque under the pulling force of the driving member BQ, and has a tendency to rotate counterclockwise. When the rotating half shaft LM is unlocked from the rotating fixed rod KIJ, the buckle between the rotating fixed rod KIJ and the jump buckle GH, and the buckle between the jump buckle GH and the lock CDF are also unlocked at the same time, so that the lock CDF is released and rotates counterclockwise around the first rotating axis D. In the process of counterclockwise rotation, the lock CDF pushes the jump buckle GH to rotate clockwise around the second rotating axis G, so that the jump buckle GH pushes the rotating fixed rod KIJ and rotates clockwise around point I at the same time, thereby completely unlocking the lock assembly 232. When the lock assembly 232 is fully unlocked, the lock CDF drives the second fixed rod CD to rotate counterclockwise during the counterclockwise rotation, thereby driving the driving member BQ to rotate counterclockwise, causing point B to move downward in the direction of height h, and when point B moves from one side of point C to the other side in the direction of height h, the driving member BQ applies a pulling force to the connecting rod assembly 231 and the lock assembly 232. At this time, point B of the connecting rod assembly 231 moves to the right under the pulling force of the driving member BQ, thereby pulling the first connecting rod AB to move to the right. The first fixed rod OA is subjected to the pulling force of the first connecting rod AB at point A, so that the first fixed rod OA drives the housing 2412 to rotate clockwise around point O. During the rotation of the housing 2412, the contact point E between the housing 2412 and the moving contact 2411 is subjected to a thrust, causing the moving contact 2411 to rotate clockwise around point O, thereby separating from the static contact 242 to achieve the opening of the gate.

[0089] In one embodiment, when the trip control assembly 26 includes a backup protector 261 and a magnetic rod PN, the backup protector 261 detects a fault current, magnetically attracts the magnetic rod PN and rotates the magnetic rod PN counterclockwise. During the rotation of the magnetic rod PN, the rotating half shaft LM rotates clockwise.

[0090] In another embodiment, when the trip control assembly 26 includes a mutual inductor 262 and a magnetic flux component 263, the mutual inductor 262 detects the fault current and sends a fault current signal to the controller. The controller controls the ejector pin 2631 of the magnetic flux component 263 to push the rotating half shaft LM to rotate clockwise according to the received signal.

[0091] Please continue reading Fig.15 and Fig.16When the current-passing assembly 24 is specifically arranged, the current-passing assembly 24 also includes a wire 243, a first copper bar 244 and a second copper bar 245. The first copper bar 244 and the second copper bar 245 are arranged opposite to each other along the height h direction of the circuit breaker 20, and the first copper bar 244 and the second copper bar 245 extend to both sides of the arc extinguishing chamber 25 along the depth d direction of the circuit breaker 20. The end of the first copper bar 244 close to the operating mechanism 23 is electrically connected to the moving contact 2411 through the wire 243, and the end of the first copper bar 244 away from the operating mechanism 23 is provided with a first joint 246. The static contact 242 is arranged on the second copper bar 245 and is electrically connected to the second copper bar 245. The end of the second copper bar 245 away from the operating mechanism 23 is provided with a second joint 247. In the specific setting, the first copper bar 244 and the second copper bar 245 can be fixed to the housing 21 respectively, wherein the side surface of the first copper bar 244 facing away from the arc extinguishing chamber 25 is in contact with the inner wall of the housing 21, and the side surface of the second copper bar 245 facing away from the arc extinguishing chamber 25 is in contact with the inner wall of the housing 21. In one embodiment, the mutual inductor 262 can be a toroidal mutual inductor. One end of the first copper bar 244 close to the operating handle 22 can extend to the toroidal mutual inductor. A welding copper bar 2441 is provided in the toroidal mutual inductor, and the first copper bar 244 is connected to the wire 243 through the welding copper bar 2441. In addition, when the moving contact assembly 241 includes a plurality of moving contacts 2411, the current-passing assembly 24 can include a plurality of wires 243, and the wires 243 are connected to the moving contacts 2411 one by one. In addition, the wire 243 is connected to the rotating rod of the moving contact 2411. Therefore, the wire 243 is arranged in the space between the moving contact assembly 241, the arc extinguishing chamber 25 and the trip control assembly 26, thereby improving the space utilization. In addition, when the operating mechanism 23 drives the moving contact assembly 241 to move, the wire 243 will not interfere with the movement of the operating mechanism 23, and the wire 243 is prevented from accidentally touching the operating mechanism 23 and causing the operating mechanism 23 to be energized.

[0092] In one embodiment, the first joint 246 and the second joint 247 may be spring bridge type joints. Specifically, the first joint 246 includes a first transfer copper bar, which is located on a side of the first copper bar 244 close to the arc extinguishing chamber 25 and is fixedly connected to the first copper bar 244. The second joint 247 includes a second transfer copper bar, which is located on a side of the second copper bar 245 close to the arc extinguishing chamber 25 and is fixedly connected to the second copper bar 245. Please continue to refer to Fig.15 and Fig.16In the above embodiment, the circuit breaker 20 may further include a first clamp 248 and a second clamp 249. The first clamp 248 is arranged near the first transfer copper bar and is fixedly connected to the housing 21. The first clamp 248 includes a first I-shaped metal member, one end of the first metal member is opened and plugged into the first transfer copper bar, and the other end is opened for plugging into the first cable of the power supply and distribution system. The second clamp 249 is arranged near the second transfer copper bar and is fixedly connected to the housing 21. The second clamp 249 includes a second I-shaped metal member, one end of the second metal member is opened and plugged into the second transfer copper bar, and the other end is opened for plugging into the second cable of the power supply and distribution system.

[0093] In one embodiment, the first connector 246 includes a first elastic retainer and two first metal pressing plates arranged oppositely. The two first metal pressing plates are connected to the side of the first copper bar 244 away from the operating mechanism 23, and the two first metal pressing plates are formed at one end away from the first copper bar 244 to form a first socket, and the first socket is used to plug with the first cable. The first elastic retainer is connected to the two first metal pressing plates, and is used to keep the two first metal pressing plates pressed against each other, so that the first cable has good contact when plugged with the first socket. Similarly, the second connector 247 includes a second elastic retainer and two second metal pressing plates arranged oppositely. The two second metal pressing plates are connected to the side of the second copper bar 245 away from the operating mechanism 23, and the two second metal pressing plates are formed at one end away from the second copper bar 245 to form a first socket, and the first socket is used to plug with the second cable. The second elastic retainer is connected to the two second metal pressing plates, and is used to keep the two second metal pressing plates pressed against each other, so that the second cable has good contact when plugged with the second socket. When the first cable is inserted into the circuit breaker 20, the end of the first cable is inserted between the two first metal pressing plates and squeezes the first elastic retainer, thereby maintaining the electrical connection between the first cable and the first copper bar 244. When the second cable is inserted into the circuit breaker 20, the end of the second cable is inserted between the two second metal pressing plates and squeezes the second elastic retainer, thereby maintaining the electrical connection between the second cable and the second copper bar 245. The first elastic retainer and the second elastic retainer may specifically include elastic members such as springs, shrapnel, torsion springs, etc., which are not limited here.

[0094] In addition, the moving contact 2411 and the stationary contact 242 are respectively welded with welding points (such as silver points). The moving contact 2411 is welded with the wire 243, and the end of the wire 243 away from the moving contact 2411 is electrically connected to the first copper bar 244, or the end of the wire 243 away from the moving contact 2411 is welded with the transfer copper bar 2441, and the transfer copper bar 2441 is fixedly connected to the first copper bar 244. When the moving contact 2411 and the stationary contact 242 are in contact, the circuit breaker 20 is in a closed state, at which time the current flows in from the second joint 247, flows through the second copper bar 245 to the stationary contact 242. After the current passes through the moving contact 2411, it flows through the wire 243 to the first copper bar 244, and finally reaches the first joint 246.

[0095] Please continue reading Figure 5 When the arc extinguishing chamber 25 is specifically arranged, the arc extinguishing chamber 25 includes a plurality of arc extinguishing pieces 251, and the aforementioned plurality of arc extinguishing pieces 251 are arranged in an arc shape. The arc extinguishing chamber 25 also includes a first arc-starting piece 2512 and a second arc-starting piece 2513. The first arc-starting piece 2512 is arranged between the aforementioned plurality of arc extinguishing pieces 251 and the first copper bar 244, and the first arc-starting piece 2512 is electrically connected to the first copper bar 244, so that the first arc-starting piece 2512 and the first copper bar 244 maintain the same voltage level, which is conducive to increasing the arc voltage, thereby improving the segmented arc extinguishing ability. The second arc-starting piece 2513 is arranged on the second copper bar 245 and is electrically connected to the second copper bar 245.

[0096] Fig.19 Another schematic diagram of a circuit breaker provided in an embodiment of the present application. Figure 5 and Fig.19As shown, an arc spout 211 is provided at one end of the housing 21 away from the operating handle 22, and the arc spout 211 is arranged toward the depth d direction of the circuit breaker 20. The arc extinguishing chamber 25 is located between the arc spout 211 and the current-passing assembly 24. The circuit breaker 20 also includes an arc extinguishing module 27, and along the depth h direction, the arc extinguishing module 27 is arranged on the side of the arc spout 211 away from the arc extinguishing chamber 25. The circuit breaker 20 is in a closed state, and at this time, the current passes through the second joint 247, the second copper busbar 245, the static contact 242, the moving contact 2411, the first copper busbar 244 and the first joint 246 in sequence. In this embodiment, the arc extinguishing assembly 25 and the operating handle 22 are respectively arranged at both ends of the housing 21 along the depth d direction, so that space can be reserved for the arc extinguishing assembly 25 in the circuit breaker 20. When the moving contact 2411 is disconnected from the stationary contact 242, the arc is guided to the above-mentioned multiple arc extinguishing pieces 251 for arc extinguishing through the first arc-striking piece 2512 and the second arc-striking piece 2513. After the free gas generated by the arc extinguishing chamber 25 passes through the arc extinguishing module 27, the free state of the ejected gas can be reduced, and the ejection of larger oxide particles can be blocked. In this way, the gas ejected by the circuit breaker 20 when the moving contact 2411 and the stationary contact 242 are separated is purer, and the free state of the gas is effectively reduced, thereby improving the breaking capacity of the circuit breaker 20 and achieving zero arcing breaking.

[0097] In the above embodiment, the arc extinguishing module 27 can be arranged in the circuit breaker 20, that is, the arc extinguishing module 27 is located at the fifth layer (arc extinguishing layer). In another embodiment, the arc extinguishing module 27 can also be arranged in the cabinet 11, and the first clamp 248 and the second clamp 249 are installed together with the arc extinguishing module 27. When the circuit breaker 20 is inserted into the cabinet 11, the arc spray port 211 is aligned with the arc extinguishing module 27, the first joint 246 of the first copper bar 244 is inserted into the first clamp 248, and the second joint 247 of the second copper bar 245 is inserted into the second clamp 249, thereby realizing the pluggable design of the circuit breaker 20 and the cabinet 11.

[0098] Fig. 20 Another schematic diagram of a circuit breaker provided in an embodiment of the present application. Fig. 20 As shown, the layout of the circuit breaker operating surface 210 can be designed according to the actual application scenario. For example, the operating mechanism 23 can also be provided with a magnetic flux component 263, a controller, a separation and undervoltage module, a fault alarm module and an auxiliary module on both sides along the width w direction. In addition, along the height h direction, a wiring harness channel can be provided on the top of the operating handle 22, and the transformer wire can be accommodated inside the wiring harness channel.

[0099] like Figure 5 As shown, in some embodiments of the present application, along the height h direction, the moving contact 2411 may be located above the stationary contact 242 .

[0100] Fig.21Another schematic diagram of a circuit breaker provided in an embodiment of the present application. Fig.21 As shown, in some other embodiments, along the height h direction, the moving contact 2411 can be located below the static contact 242. Specifically, in this embodiment, the trip control assembly 26 is arranged near the end of the second copper bar 245 facing the operating mechanism 23, and the second copper bar 245 is connected to the second arc-initiating piece 2513 of the arc extinguishing chamber 252 through the welding copper bar 2441, the wire and the static contact 245 in sequence. The moving contact assembly 241 is arranged near the end of the first copper bar 244 facing the operating mechanism 23. When the moving contact 2411 and the static contact 242 are in contact, the circuit breaker 20 is in a closed state, and at this time, the second joint 247, the second copper bar 245, the welding copper bar 2441, the wire, the static contact 242, the moving contact 2411, the wire 243, the first copper bar 244 and the first joint 246 form a current path.

[0101] exist Fig.21 In the embodiment shown, the staff pushes the operating handle 22 in the direction of height h by hand. Specifically, when the circuit breaker 20 is in the closed state, the operating handle 22 is pushed in the direction of height h to perform the opening operation. When the operating handle 22 is pushed upward, the operating handle 22 rotates counterclockwise around point R. During the rotation process, the operating handle 22 pulls the driving member BQ to rotate counterclockwise, so that point B moves upward in the direction of height h, and when point B moves from one side of point C to the other side in the direction of height h, the driving member BQ applies a pulling force to the connecting rod assembly 231 and the locking assembly 232. At this time, point B of the connecting rod assembly 231 moves to the right under the pulling force of the driving member BQ, thereby pulling the first connecting rod AB to move to the right. The first fixed rod OA is subjected to the pulling force of the first connecting rod AB at point A, so that the first fixed rod OA drives the housing 2412 to rotate counterclockwise around point O. During the rotation of the housing 2412, the contact point E between the housing 2412 and the moving contact 2411 is subjected to a thrust, causing the moving contact 2411 to rotate counterclockwise around the point O, thereby separating from the stationary contact 242 and achieving the opening of the switch. At the same time, in the lock assembly 232, the lock CDF is subjected to a clockwise torque under the pulling force of the driving member BQ. However, since the buckle between the rotating half shaft LM and the rotating fixed rod KIJ is in a locked state, the buckle between the rotating fixed rod KIJ and the jump buckle GH, and the buckle between the jump buckle GH and the lock CDF cannot be unlocked, so that the lock CDF remains in a stationary state, that is, the lock assembly 232 is in a locked state. In the above embodiment, the moving contact 2411 rotates counterclockwise around the point O, that is, the rotation axis O' of the moving contact 2411 overlaps with the point O. Of course, in other embodiments, the rotation axis O' of the moving contact 2411 may not overlap with the point O.

[0102] Please continue reading Fig.21, when the circuit breaker 20 is in the open state, the operating handle 22 is pushed in the direction of height h to perform the closing operation. When the operating handle 22 is pushed downward, the operating handle 22 rotates clockwise around point R. During the rotation process, the operating handle 22 pulls the driving member BQ to rotate clockwise, so that point B moves downward in the direction of height h, and when point B moves from one side of point C to the other side in the direction of height h, the driving member BQ applies a pulling force to the connecting rod assembly 231 and the locking assembly 232. At this time, point B of the connecting rod assembly 231 moves to the left under the pulling force of the driving member BQ, thereby pulling the first connecting rod AB to move to the left. The first fixed rod OA is subjected to the pulling force of the first connecting rod AB at point A, so that the first fixed rod OA drives the housing 2412 to rotate clockwise around point O. During the rotation of the housing 2412, the moving contact 2411 is pushed by the housing 2412, so that the moving contact 2411 rotates clockwise around the point O, thereby contacting the stationary contact 242 to achieve closing. At the same time, the lock assembly 232 is still in a locked state, so that the lock CDF, the jumper GH, the rotation fixing rod KIJ, and the rotating half shaft LM are in a stationary state.

[0103] like Figure 5 and Fig.21 As shown, in one embodiment, along the height h direction, the first copper bar 244 and the second copper bar 245 can be relatively located on both sides of the arc extinguishing chamber 25. The trip control assembly 26 is arranged close to the first copper bar 244, and the moving contact assembly 241 is arranged close to the second copper bar 245; or, the trip control assembly 26 is arranged close to the second copper bar 245, and the moving contact assembly 241 is arranged close to the first copper bar 244. In the second layer (operating layer), the lock assembly 232 can be located above the driving member BQ along the height h direction, and the controller is located above the operating handle 22 along the height h direction. Fig. 22 Another schematic diagram of a circuit breaker provided in an embodiment of the present application. Fig. 22 As shown, in another embodiment, the first copper bar 244 and the second copper bar 245 can be located on the same side of the arc extinguishing chamber 25. That is, along the height h direction, the first copper bar 244 and the second copper bar 245 can be located above the arc extinguishing chamber 25 at the same time, or the first copper bar 244 and the second copper bar 245 can also be located below the arc extinguishing chamber 25 at the same time. Taking the first copper bar 244 and the second copper bar 245 being located below the arc extinguishing chamber 25 as an example, please continue to refer to Fig. 22, the second copper bar 245 is arranged close to the arc extinguishing chamber 25, and the first copper bar 244 is located on the side of the second copper bar 245 away from the arc extinguishing chamber 25. The static contact 242 is arranged on the side surface of the second copper bar 245 facing the arc extinguishing chamber 25, and the moving contact 2411 is used to contact the side surface of the static contact 242 facing the arc extinguishing chamber 25. The tripping control assembly 26 is arranged close to the first copper bar 244. Therefore, in the third layer (current-passing layer), along the height h direction, the tripping control assembly 26 is located below the moving contact assembly 241 assembly. In an embodiment of the present application, the relative positions of the backup protector 261 and the mutual inductor 262 along the height h direction can be interchanged. In other words, the backup protector 261 can be located on the side of the mutual inductor 262 away from the moving contact assembly 241, or the mutual inductor 262 can be located on the side of the backup protector 261 away from the moving contact assembly 241. In the fourth layer (arc extinguishing layer), the arc extinguishing pieces 251 of the arc extinguishing chamber 25 are distributed in an arc shape in a direction away from the second copper bar 245. The first arc-starting piece 2512 is connected to the OE section of the moving contact 2411 and is connected to the first copper bar 244 through the wire 243. In this embodiment, the wire 243 can also be welded to the copper bar 2441 ( Fig. 22 The first copper bus 244 is connected to the second layer (operating layer) along the height h direction. The locking assembly 232 can be located below the driving member BQ in the second layer (operating layer). The controller is located in the operating mechanism layer. Specifically, the controller is arranged on the peripheral side of the operating mechanism 23. In other words, the controller can be placed above or below the operating mechanism 23 in the height h direction; or, in the width w direction, the controller can be placed on the left or right side of the operating mechanism 23. The specific position of the controller in the second layer (operating layer) is not limited in the embodiment of the present application.

[0104] exist Fig. 22In the embodiment shown, the staff pushes the operating handle 22 in the direction of height h by hand. Specifically, when the circuit breaker 20 is in the closed state, the operating handle 22 is pushed in the direction of height h to perform the opening operation. When the operating handle 22 is pushed downward, the operating handle 22 rotates clockwise around point R. During the rotation process, the operating handle 22 pulls the driving member BQ to rotate clockwise, so that point B moves downward in the direction of height h, and when point B moves from one side of point C to the other side in the direction of height h, the driving member BQ applies a pulling force to the connecting rod assembly 231 and the locking assembly 232. At this time, point B of the connecting rod assembly 231 moves to the right under the pulling force of the driving member BQ, thereby pulling the first connecting rod AB to move to the right. The first fixed rod OA is subjected to the pulling force of the first connecting rod AB at point A, so that the first fixed rod OA drives the housing 2412 to rotate clockwise around point O. During the rotation of the housing 2412, the contact point E between the housing 2412 and the moving contact 2411 is subjected to thrust, causing the moving contact 2411 to rotate clockwise around the point O, thereby separating from the stationary contact 242 and achieving the opening of the switch. At the same time, in the lock assembly 232, the lock CDF is subjected to a counterclockwise torque under the pulling force of the driving member BQ. However, since the buckle between the rotating half shaft LM and the rotating fixed rod KIJ is in a locked state, the buckle between the rotating fixed rod KIJ and the jump buckle GH, and the buckle between the jump buckle GH and the lock CDF cannot be unlocked, so that the lock CDF remains stationary, that is, the lock assembly 232 is in a locked state.

[0105] Please continue reading Fig. 22 , when the circuit breaker 20 is in the open state, the operating handle 22 is pushed in the direction of height h to perform the closing operation. When the operating handle 22 is pushed upward, the operating handle 22 rotates counterclockwise around point R. During the rotation process, the operating handle 22 pulls the driving member BQ to rotate counterclockwise, so that point B moves upward in the direction of height h, and when point B moves from one side of point C to the other side in the direction of height h, the driving member BQ applies a pulling force to the connecting rod assembly 231 and the locking assembly 232. At this time, point B of the connecting rod assembly 231 moves to the left under the pulling force of the driving member BQ, thereby pulling the first connecting rod AB to move to the left. The first fixed rod OA is subjected to the pulling force of the first connecting rod AB at point A, so that the first fixed rod OA drives the housing 2412 to rotate counterclockwise around point O. During the rotation of the housing 2412, the moving contact 2411 is pushed by the housing 2412, so that the moving contact 2411 rotates counterclockwise around the point O, thereby contacting the stationary contact 242 to achieve closing. At the same time, the lock assembly 232 is still in a locked state, so that the lock CDF, the jumper GH, the rotation fixing rod KIJ, and the rotating half shaft LM are in a stationary state.

[0106] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electric power device, characterized in that: The invention comprises a cabinet and a plurality of circuit breakers and a plurality of power modules located in the cabinet, wherein the plurality of circuit breakers are sequentially arranged in the cabinet along the width direction of the cabinet, the height direction of the circuit breaker is in the same direction as the width direction of the cabinet, the width direction of the circuit breaker is in the same direction as the height direction of the cabinet, and the depth direction of the circuit breaker is in the same direction as the depth direction of the cabinet; The circuit breaker comprises a housing, an operating handle, an operating mechanism, a current-passing assembly and an arc-extinguishing chamber, wherein the operating mechanism is connected to the operating handle; at least a portion of the operating handle close to the operating mechanism, the operating mechanism, the current-passing assembly and the arc-extinguishing chamber are sequentially arranged in the housing along the depth direction of the circuit breaker; The flow assembly includes a moving contact assembly and a stationary contact, the moving contact assembly includes a moving contact, and the moving contact can rotate relative to the housing; The operating mechanism is connected to the moving contact assembly and is used to drive the moving contact assembly to move so that the moving contact contacts or separates from the stationary contact; The operating handle is used to control the operating mechanism to drive the moving contact assembly to move, so that the moving contact is in contact with or separated from the stationary contact; The arc extinguishing chamber is used to eliminate the arc generated when the moving contact is separated from the static contact; The circuit breaker also includes a trip control component, which is arranged on one side of the moving contact assembly along the height direction of the circuit breaker and is transmission-connected to the operating mechanism; the trip control component is used to control the operating mechanism to drive the moving contact assembly to move when a fault current is detected, so as to separate the moving contact from the static contact.

2. The electric power equipment according to claim 1, characterized in that: The operating mechanism includes a connecting rod assembly, a locking assembly and a driving member; The connecting rod assembly is connected to the moving contact assembly, the locking assembly and the driving member are respectively connected to one end of the connecting rod assembly away from the moving contact assembly, the end of the locking assembly away from the connecting rod assembly is transmission-connected to the tripping control assembly, and the end of the driving member away from the connecting rod assembly is connected to the operating handle; the locking assembly is used to drive the driving member to move under the control of the tripping control assembly; the driving member is used to drive the connecting rod assembly to move under the drive of the tripping control assembly so as to separate the moving contact from the static contact; the driving member is also used to drive the connecting rod assembly to move under the drive of the operating handle so as to make the moving contact contact or separate from the static contact.

3. The electric power equipment according to claim 2, characterized in that: The housing is provided with a first rotating shaft and a second rotating shaft, the lock assembly includes a lock and a jump lock, the lock is sleeved on the first rotating shaft and rotates around the first rotating shaft, the jump lock is sleeved on the second rotating shaft and rotates around the second rotating shaft; one end of the lock is connected to the connecting rod assembly, and the other end is connected to the jump lock buckle, and the end points of the lock and the jump lock buckle are located on the side of the second rotating shaft away from the operating handle; the jump lock is used to limit the rotation stroke of the lock; The trip control assembly is used to control the unlocking of the lock catch and the jump catch, and driven by the driving member to drive the connecting rod assembly to move so as to separate the moving contact from the stationary contact.

4. The electric power equipment according to claim 3, characterized in that: Along the height direction of the circuit breaker, the trip buckle is located on a side of the lock buckle away from the operating handle.

5. The electric power equipment according to claim 3 or 4, characterized in that: The lock assembly also includes a rotating fixed rod and a rotating half-shaft, the rotating fixed rod is buckled on the end of the jump buckle away from the lock buckle; the rotating half-shaft is buckled on the end of the rotating fixed rod away from the jump buckle; the tripping control assembly is used to drive the rotating half-shaft to rotate, so as to unlock the rotating half-shaft and the rotating fixed rod, the rotating fixed rod and the jump buckle, and the jump buckle and the lock buckle in sequence, so that the lock buckle rotates under the drive of the driving member.

6. The electric power equipment according to any one of claims 2 to 5, characterized in that: The connecting rod assembly includes a first fixed rod, a first connecting rod and a second connecting rod; the first fixed rod is connected to the moving contact assembly, and the first fixed rod is connected to the first connecting rod; one end of the first connecting rod away from the first fixed rod is rotatably connected to the second connecting rod; one end of the second connecting rod away from the first connecting rod is rotatably connected to the lock; one end of the driving member is connected to the operating handle, and the other end is connected to one end of the first connecting rod away from the first fixed rod; the connecting rod assembly is used to drive the moving contact assembly to rotate under the drive of the driving member.

7. The electric power equipment according to any one of claims 1 to 6, characterized in that: The trip control assembly includes a backup protector and a magnetic rod, wherein the magnetic rod can rotate relative to the housing; the backup protector is magnetically connected to the magnetic rod, and the magnetic rod is transmission-connected to the operating mechanism; the backup protector is used to magnetically attract the magnetic rod to drive the operating mechanism to move when the fault current is detected.

8. The electric power equipment according to any one of claims 1 to 7, characterized in that: The trip control assembly comprises a thermal magnetic trip body, a thermally deformable metal part and a magnetic snapping device; along the width direction of the circuit breaker, the thermal magnetic trip body is located on one side of the operating mechanism; the thermally deformable metal part is connected to the thermal magnetic trip body; the thermally deformable metal part and the magnetic snapping device are respectively rotatably connected to the housing, and the thermally deformable metal part and the magnetic snapping device are respectively transmission-connected to the operating mechanism; The thermal-magnetic release body is used to cause the thermally deformable metal part to generate thermal deformation and drive the operating mechanism to move when a first fault current is detected; and to cause the thermal-magnetic release body to magnetically attract the magnetic snapping device when a second fault current is detected, so that the magnetic snapping device drives the operating mechanism to move.

9. The electric power equipment according to any one of claims 1 to 8, characterized in that: The circuit breaker further comprises a controller, wherein the controller is arranged on one side of the operating mechanism along the width direction of the circuit breaker; The trip control assembly includes a mutual inductor and a magnetic flux component, and the mutual inductor and the magnetic flux component are electrically connected to the controller respectively; the mutual inductor is arranged on one side of the moving contact assembly along the height direction of the circuit breaker, and is used to send a fault current signal to the controller when the fault current is detected; the magnetic flux component is located between the controller and the operating mechanism, and is transmission-connected to the operating mechanism; the controller is used to control the magnetic flux component to drive the operating mechanism to move according to the fault current signal.

10. The electric power equipment according to any one of claims 1 to 9, characterized in that: The moving contact assembly also includes a shell and a first spring located in the shell; the shell is rotatably connected to the outer shell and is transmission-connected to the operating mechanism; the static contact is located on a side of the shell away from the operating mechanism, the moving contact is located in the shell and extends out of the shell in a direction away from the operating mechanism, and one end of the moving contact located in the shell is rotatably connected to the outer shell; one end of the first spring is connected to the moving contact, and the other end is connected to the shell; the shell is used to push the moving contact to rotate under the drive of the operating mechanism.

11. The electric power equipment according to any one of claims 1 to 10, characterized in that: The current-carrying assembly further includes a conductor, and a first copper bar and a second copper bar arranged opposite to each other along the height direction of the circuit breaker, wherein the first copper bar and the second copper bar extend to both sides of the arc extinguishing chamber along the depth direction, or the first copper bar and the second copper bar extend to the same side of the arc extinguishing chamber along the depth direction; an end of the first copper bar close to the operating mechanism is electrically connected to the moving contact through the conductor, and an end of the first copper bar away from the operating mechanism is provided with a first joint; the static contact is provided on and electrically connected to the second copper bar, and an end of the second copper bar away from the operating mechanism is provided with a second joint.

12. The electric power device according to claim 11, characterized in that The moving contact includes a rotating rod and a contact, wherein the rotating rod is located in the shell and is rotatably connected to the outer shell, and one end of the rotating rod away from the operating mechanism extends out of the shell; the contact is connected to a side of the rotating rod away from the operating mechanism, and the wire is connected to the rotating rod.

13. The electric power equipment according to claim 11 or 12, characterized in that: The first connector includes two first metal pressing sheets arranged opposite to each other, and a first elastic retaining member; the two first metal pressing sheets are connected to a side of the first copper bar away from the operating mechanism, and ends of the two first metal pressing sheets away from the first copper bar form a first socket, and the first socket is used to be plugged with a first cable; the first elastic retaining member is connected to the two first metal pressing sheets, and is used to keep the two first metal pressing sheets pressed against each other; The second connector includes two second metal pressing plates arranged opposite to each other, and a second elastic retaining member; the two second flexible metal plates are connected to a side of the second copper bar away from the operating mechanism, and the ends of the two second metal pressing plates facing away from the second copper bar form a second socket, and the second socket is used for plugging with a second cable; the second elastic retaining member is connected to the two second metal pressing plates, and is used to keep the two second metal pressing plates pressed toward each other.

14. The electric power equipment according to claim 11 or 12, characterized in that: The first joint comprises a first transfer copper bar, which is located on a side of the first copper bar close to the arc extinguishing chamber and is fixedly connected to the first copper bar; the second joint comprises a second transfer copper bar, which is located on a side of the second copper bar close to the arc extinguishing chamber and is fixedly connected to the second copper bar; The circuit breaker further comprises a first clamp and a second clamp, The first clamp is arranged close to the first copper busbar and fixedly connected to the housing; the first clamp comprises an I-shaped first metal piece, one end opening of the first metal piece is plugged into the first copper busbar, and the other end opening is used for plugging into the first cable; The second clamp is arranged close to the second transfer copper bus and fixedly connected to the shell; the second clamp includes a second I-shaped metal piece, one end opening of the second metal piece is plugged into the second transfer copper bus, and the other end opening is used to be plugged into the second cable.

15. The electric power equipment according to any one of claims 1 to 14, characterized in that: An arc-spraying port is arranged at one end of the housing away from the operating handle, and the arc-spraying port is arranged toward the depth direction; the arc-extinguishing chamber is located between the arc-spraying port and the flow-through component.

16. The electric power equipment according to any one of claims 1 to 15, characterized in that: The arc extinguishing chamber includes a plurality of arc extinguishing pieces, and the plurality of arc extinguishing pieces are arranged in an arc shape.

17. The electric power equipment according to claim 15 or 16, characterized in that: The circuit breaker further comprises an arc extinguishing module, which is arranged on a side of the arc spraying port away from the arc extinguishing chamber along the depth direction of the circuit breaker, and is used for purifying the gas sprayed from the arc spraying port.

18. The electric power equipment according to any one of claims 1 to 14, characterized in that: The cabinet further comprises an arc extinguishing module, which is located at the arc spraying port and is used for purifying the gas sprayed from the arc spraying port.

19. A circuit breaker, characterized in that: The circuit breaker comprises a housing, an operating handle, an operating mechanism, a current-passing assembly and an arc-extinguishing chamber, wherein the operating mechanism is connected to the operating handle; at least a portion of the operating handle close to the operating mechanism, the operating mechanism, the current-passing assembly and the arc-extinguishing chamber are sequentially arranged in the housing along the depth direction of the circuit breaker; The flow assembly includes a moving contact assembly and a stationary contact, the moving contact assembly includes a moving contact, and the moving contact can rotate relative to the housing; The operating mechanism is connected to the moving contact assembly and is used to drive the moving contact assembly to move so that the moving contact contacts or separates from the stationary contact; The operating handle is used to control the operating mechanism to drive the moving contact assembly to move, so that the moving contact is in contact with or separated from the stationary contact; The arc extinguishing chamber is used to eliminate the arc generated when the moving contact is separated from the static contact; The circuit breaker also includes a trip control component, which is arranged on one side of the moving contact assembly along the height direction of the circuit breaker and is transmission-connected to the operating mechanism; the trip control component is used to control the operating mechanism to drive the moving contact assembly to move when a fault current is detected, so as to separate the moving contact from the static contact.

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