Circuit breaker and electrical device

Abstract

The present application provides a circuit breaker and an electrical device. The circuit breaker comprises a housing, and an operating handle, an operating mechanism, a current-conducting assembly, and an arc extinguishing chamber which are sequentially provided in the housing along the depth direction of the circuit breaker. The operating mechanism comprises two mounting plates, a latch assembly, and at least one operating assembly. The operating assembly comprises a trip lever, an upper connecting rod, a lower connecting rod, and springs. Along the height direction of the circuit breaker, the latch assembly is located on one side of the rotating center of the trip lever, and the upper connecting rod and the lower connecting rod are located on the other side of the rotating center. Each mounting plate is provided with a limiting rod which is used for limiting rotation of the trip lever and the upper connecting rod when the latch assembly unlocks the trip lever. The upper connecting rod is provided with a limiting rod which is used for limiting the rotation angle of the trip lever during switching-on / switching-off. The mechanisms of the circuit breaker are provided along the depth direction, resulting in a smaller dimension along the height direction. In addition, the operating mechanism has a simple structure and allows for locking and unlocking, thereby facilitating the miniaturization of the circuit breaker, and thus allowing for an increased number of circuit breakers to be arranged within a cabinet.

Description

Circuit breaker and power equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on January 30, 2024, with application number 202410135425.7 and application name “A circuit breaker and power equipment”, the entire contents of which are incorporated by reference into 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 technologies like artificial intelligence (AI), 5.5G, and autonomous driving are increasingly integrated into our daily lives and work, the demand for computing power is increasing significantly. Data centers, as a key area supporting this computing power, require ultra-high capacity and high density. Uninterruptible power supplies (UPS), an indispensable core unit in modern data centers, are being further miniaturized in response to the trend toward increased capacity and higher density.

[0005] In data center power supply and distribution systems, circuit breakers are often required to distribute electrical energy. As key components in power supply and distribution systems, circuit breakers not only control the on and off of circuits but also provide certain protective functions. Specifically, a mechanical switch can be incorporated into the circuit breaker, allowing operators to operate the switch to switch the circuit breaker between closed and open states, thereby connecting or disconnecting the circuit. Furthermore, when a fault such as an overload or short circuit occurs, the circuit breaker can automatically switch to the open state to disconnect the current, thereby fulfilling its protective function.

[0006] For data centers, as the size and power consumption of power conversion modules continue to decrease, current levels are also increasing. However, the limited internal space of existing cabinets has led to significant limitations on the layout and number of circuit breakers, making it impossible to meet the higher operating current requirements.

[0007] Summary of the Invention

[0008] The present application provides a circuit breaker and power equipment to simplify the structure of the operating mechanism, thereby facilitating adjustment of 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 and improving the safety of the circuit breaker.

[0009] In a first aspect, the present application provides an electrical power device. The electrical power device includes a cabinet and multiple circuit breakers and multiple power modules located within the cabinet. The multiple circuit breakers are sequentially arranged within the cabinet along the width of the cabinet, with the height of the circuit breakers oriented in the same direction as the width of the cabinet, the width of the circuit breakers oriented in the same direction as the height of the cabinet, and the depth of the circuit breakers oriented in the same direction as the depth of the cabinet. Specifically, the circuit breaker includes a housing, an operating handle, an operating mechanism, a current-carrying assembly, and an arc-extinguishing chamber. The operating handle is connected to the operating mechanism. The current-carrying assembly includes a moving contact and a stationary contact. The moving contact is rotatable relative to the housing, with the stationary contact located on a side of the moving contact away from the operating mechanism along the depth of the circuit breaker. At least the portion of the operating handle proximal to the operating mechanism, the operating mechanism, the moving contact, and the arc-extinguishing chamber are sequentially arranged within the housing along the depth of the circuit breaker. The operating handle is used to control the operating mechanism to drive the moving contact to move, thereby causing the moving contact to contact or separate from the stationary contact. The arc-extinguishing chamber is used to extinguish arcs generated when the moving contact separates from the stationary contact. In a specific embodiment, the operating mechanism includes a first mounting plate, a second mounting plate, a locking assembly, and at least one set of operating components. The first and second mounting plates are positioned opposite each other along the width of the circuit breaker, with the locking assembly and operating assembly located between the first and second mounting plates. The first and second mounting plates are respectively fixedly connected to the housing, and the operating handle is rotatably connected to the first and second mounting plates. The locking assembly is used to lock or unlock the movement of the operating assembly. The operating assembly includes a trip latch, an upper connecting rod, a lower connecting rod, and a spring. The trip latch is rotatably connected to the first mounting plate via a first fixed axis. Along the height of the circuit breaker, the locking assembly is located on one side of the first fixed axis, while the upper and lower connecting rods are located on the other side of the first fixed axis. One end of the upper connecting rod is rotatably connected to the trip latch via the first rotating axis, and the other end is rotatably connected to one end of the lower connecting rod via the second rotating axis. The end of the lower connecting rod, remote from the upper connecting rod, is connected to the moving contact. One end of the spring is fixedly connected to the operating handle, and the other end is fixedly connected to the second rotating axis. The first mounting plate is provided with a first limiting post, which is used to limit the rotation of the tripping latch and the upper connecting rod when the lock assembly unlocks the tripping latch. The upper connecting rod is provided with a second limiting post, which is used to limit the rotation angle of the tripping latch when the operating handle is closed or opened.

[0010] The above-mentioned circuit breaker has a circuit breaker operating surface for 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 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 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 circuit breakers are installed in a 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.

[0011] In the electric power equipment of the present application, the part of the operating handle of the circuit breaker close to the operating mechanism, the operating mechanism, the moving contact and the arc extinguishing chamber are arranged along the depth direction of the circuit breaker. It can be understood that this part of the operating handle, the operating mechanism, the moving contact and the arc extinguishing chamber are arranged in a layered manner along the depth direction of the circuit breaker. This can reduce the layout of the 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 to increase the number of circuit breakers that can be laid out in the cabinet. Among them, the circuit breaker includes a first layer (electrical operation or manual operation layer), a second layer (operation layer), a third layer (current flow layer) and a fourth layer (arc extinguishing layer). When the circuit breaker is specifically set up, the operating handle is located on the first layer, the operating mechanism is located on the second layer, the current flow component is located on the third layer, and the arc extinguishing chamber is located on the fourth layer. In the second layer, the locking assembly and the operating assembly are arranged along the height direction of the circuit breaker, which can realize the function of locking and unlocking the operating assembly, and the structure of the operating mechanism is simple, which is conducive to the miniaturization of the circuit breaker.

[0012] In one possible implementation, the operating handle is pushed along the height of the circuit breaker, and when the operating handle is closed, the operating handle approaches the latch assembly. The latch assembly is arranged in the closing direction of the operating handle, allowing the placement of a trip control component (e.g., a thermal-magnetic trip system or an electronic trip system) in the closing direction of the operating handle. This minimizes the height of the circuit breaker, allowing for the installation of more circuit breakers across the width of the cabinet when the circuit breaker is installed horizontally within the cabinet.

[0013] When the structure of the trip latch is specifically set, the trip latch includes a first part, a second part and a third part of an integrated structure, the second part is located between the first part and the third part and the first part, the second part and the third part are arranged in an S shape, the first part is arranged near the lock assembly, the first fixed shaft is rotatably connected between the first part and the second part, and the third part is rotatably connected to the first rotating shaft. The first limiting post extends between the first part and the second part. When the lock assembly unlocks the trip latch, the trip latch rotates around the first fixed shaft and drives the upper connecting rod to move until the first part of the trip latch and the upper connecting rod respectively abut against the first limiting post, causing the trip latch and the upper connecting rod to stop rotating. The second limiting post extends between the second part and the third part. When the operating handle is closed, the operating handle drives the second rotating shaft to move through the spring, and the movement of the second rotating shaft drives the upper connecting rod and the trip latch to rotate in turn until the second part of the trip latch abuts against the second limiting post, causing the trip latch to stop rotating. When the operating handle opens, the spring drives the third rotation of the operating handle. The movement of the second rotation shaft then drives the upper connecting rod and the tripping catch to rotate until the third portion of the tripping catch contacts the second limiting post, stopping the tripping catch. Therefore, the second limiting post can adjust the tripping catch's rotation angle to prevent the operating handle from rotating excessively during both closing and opening.

[0014] The number of operating assemblies in this application is not limited. For example, the operating mechanism may include one, two, or more operating mechanisms, and this is not a limitation herein. In one possible implementation, the at least one operating assembly includes a first operating assembly and a second operating assembly. The first mounting plate, the first operating assembly, the second operating assembly, and the second mounting plate are sequentially arranged along the width of the circuit breaker, wherein the lower connecting rod, the upper connecting rod, and the tripping catch of the first operating assembly are sequentially arranged in a direction away from the first mounting plate, and the lower connecting rod, the upper connecting rod, and the tripping catch of the second operating assembly are sequentially arranged in a direction away from the second mounting plate.

[0015] In the above operating mechanism, the first rotating shaft of the first operating assembly and the first rotating shaft of the second operating assembly are an integrated structure, so that the upper connecting rod of the first operating assembly and the upper connecting rod of the second operating assembly move synchronously.

[0016] In addition, in the above operating mechanism, the jump buckle of the first operating component and the jump buckle of the second operating component are an integrated structure, so as to further simplify the structure of the operating mechanism.

[0017] The lock assembly of the present application can adopt a three-stage lock form. Specifically, the lock assembly includes a primary lock link, a secondary lock link and a tertiary lock shaft. The primary lock link, the secondary lock link and the tertiary lock shaft are respectively rotatably connected to the first mounting plate, and the primary lock link is located on the side of the secondary lock link and the tertiary lock shaft close to the jumper. The tertiary lock shaft is used to lock or unlock the rotation of the secondary lock link relative to the housing. The secondary lock link is used to lock or unlock the rotation of the primary lock link relative to the housing. The primary lock link is used to lock or unlock the rotation of the jumper relative to the housing.

[0018] Specifically, when the third-level lock catch is locked with the second-level lock catch, the end of the third-level lock catch shaft near the second-level lock catch connecting rod is a semicircular end, and the end of the second-level lock catch connecting rod near the third-level lock catch shaft is provided with an overlapping portion, which is used to overlap with the circular end, and the overlapping portion and the circular end are used to achieve rotational locking of the second-level lock catch connecting rod. Specifically, when the second-level lock catch is locked with the first-level lock catch, the end of the second-level lock catch connecting rod near the first-level lock catch connecting rod is used to abut against the first-level lock catch connecting rod to achieve rotational locking of the first-level lock catch connecting rod.

[0019] In one possible implementation, the lock assembly further includes a torsion spring and a second fixed shaft, wherein the secondary lock link is rotatably connected to the first mounting plate via the second fixed shaft, the torsion spring is rotatably connected to the second fixed shaft, and the torsion spring and the secondary lock link are relatively fixed. When the overlap between the overlapping portion and the circular end portion is unlocked, the torsion spring provides a return force to drive the secondary lock link to rotate, moving the secondary lock link away from the primary lock link, thereby unlocking the primary lock link from rotation.

[0020] In one possible implementation, the lock assembly further includes a return spring and a third fixed shaft. The return spring is rotatably connected to the first mounting plate via the third fixed shaft, and the primary lock link is fixed relative to the return spring. The end of the secondary lock link proximal to the tripping latch is configured to abut against the tripping latch. When the secondary lock link moves away from the primary lock link, the return spring provides a return force to drive the primary lock link to rotate, moving the primary lock link away from the tripping latch, thereby unlocking the tripping latch.

[0021] In order to prevent the third-level lock shaft from excessive rotation, in one possible implementation, the third-level lock shaft is provided with a limiting cylinder, and the first mounting plate is provided with an arc-shaped guide groove, and the limiting cylinder is accommodated in the arc-shaped guide groove and slides along the arc-shaped guide groove.

[0022] In one possible implementation, the secondary lock link includes two links, positioned opposite each other and fixedly connected. The secondary lock link utilizes a double-bladed design and is positioned centrally along the width of the circuit breaker operating mechanism. The lock assembly can be unlocked by rotating the tertiary lock shaft. This structure provides more balanced force distribution and enhanced structural stability.

[0023] In one possible implementation, the circuit breaker further includes a trip control assembly, which is disposed on one side of the movable contact along the height of the circuit breaker and is transmission-connected to the latch assembly. The trip control assembly is configured to control the latch assembly to move the operating assembly to separate the movable contact from the stationary contact upon detecting a fault current.

[0024] In a second aspect, the present application provides a circuit breaker. The circuit breaker includes a housing, an operating handle, an operating mechanism, a current-carrying assembly, and an arc-extinguishing chamber. The operating handle is connected to the operating mechanism. The current-carrying assembly includes a movable contact and a stationary contact. The movable contact is rotatable relative to the housing, with the stationary contact located on the side of the movable contact away from the operating mechanism along the depth direction of the circuit breaker. At least the portion of the operating handle proximal to the operating mechanism, the operating mechanism, the movable contact, and the arc-extinguishing chamber are sequentially arranged within the housing along the depth direction of the circuit breaker. The operating handle is used to control the operating mechanism to drive the movable contact to contact or separate the movable contact from the stationary contact. The arc-extinguishing chamber is used to extinguish the arc generated when the movable contact separates from the stationary contact. Specifically, the operating mechanism includes a first mounting plate, a second mounting plate, a latch assembly, and at least one set of operating components. The first and second mounting plates are disposed opposite each other along the width direction of the circuit breaker, with the latch assembly and operating component located between the first and second mounting plates. The first and second mounting plates are respectively fixedly connected to the housing, and the operating handle is rotatably connected to the first and second mounting plates. The latch assembly is used to lock or unlock the movement of the operating assembly. The operating assembly includes a trip latch, an upper connecting rod, a lower connecting rod, and a spring. The trip latch is rotatably connected to the first mounting plate via a first fixed axis. Along the height direction of the circuit breaker, the latch assembly is located on one side of the first fixed axis, and the upper connecting rod and the lower connecting rod are located on the other side of the first fixed axis. One end of the upper connecting rod is rotatably connected to the trip latch via the first rotating axis, and the other end is rotatably connected to one end of the lower connecting rod via the second rotating axis. The end of the lower connecting rod away from the upper connecting rod is connected to the moving contact. One end of the spring is fixedly connected to the operating handle, and the other end is fixedly connected to the second rotating axis. The first mounting plate is provided with a first limiting post, which is used to limit the rotation of the trip latch and the upper connecting rod when the latch assembly unlocks the trip latch. The upper connecting rod is provided with a second limiting post, which is used to limit the rotation angle of the trip latch when the operating handle is closed or opened.

[0025] The above-mentioned circuit breaker has a circuit breaker operating surface for 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 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 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 circuit breakers are installed in a 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.

[0026] In the circuit breaker of the present application, the part of the operating handle close to the operating mechanism, the operating mechanism, the moving contact and the arc extinguishing chamber are arranged along the depth direction of the circuit breaker. It can be understood that this part of the operating handle, the operating mechanism, the moving contact and the arc extinguishing chamber are arranged in a layered manner along the depth direction of the circuit breaker. This can 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 to increase the number of circuit breakers that can be laid out in the cabinet. Among them, the circuit breaker includes a first layer (electrical operation or manual operation layer), a second layer (operation layer), a third layer (current flow layer) and a fourth layer (arc extinguishing layer). When the circuit breaker is specifically set up, the operating handle is located on the first layer, the operating mechanism is located on the second layer, the current flow assembly is located on the third layer, and the arc extinguishing chamber is located on the fourth layer. In the second layer, the locking assembly and the operating assembly are arranged along the height direction of the circuit breaker, which can realize the function of locking and unlocking the operating assembly, and the structure of the operating mechanism is simple, which is conducive to the miniaturization of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a schematic diagram of an application scenario of a circuit breaker provided in an embodiment of the present application;

[0028] FIG2 is a schematic diagram of an electric power device provided in an embodiment of the present application;

[0029] FIG3 is a schematic diagram of a circuit breaker provided in an embodiment of the present application;

[0030] FIG4 is another schematic diagram of a circuit breaker provided in an embodiment of the present application;

[0031] FIG5 is a schematic diagram of an operating mechanism provided in an embodiment of the present application;

[0032] FIG6 is another schematic diagram of the operating mechanism provided in an embodiment of the present application;

[0033] FIG7 is another schematic diagram of the operating mechanism provided in an embodiment of the present application;

[0034] FIG8 is a schematic diagram of an operating mechanism provided in an embodiment of the present application in an open state;

[0035] FIG9 is a schematic diagram of an operating mechanism in a closed state provided by an embodiment of the present application;

[0036] FIG10 is a schematic diagram of a lock assembly provided in an embodiment of the present application;

[0037] FIG11 is another schematic diagram of the operating mechanism provided in an embodiment of the present application;

[0038] FIG12 is another schematic diagram of the operating mechanism provided in an embodiment of the present application;

[0039] FIG13 is another schematic diagram of a circuit breaker provided in an embodiment of the present application;

[0040] FIG14 is another schematic diagram of the operating mechanism provided in an embodiment of the present application in a closed state;

[0041] FIG15 is another schematic diagram of the operating mechanism provided in an embodiment of the present application in an open state;

[0042] FIG16 is a schematic diagram of an operating mechanism provided by an embodiment of the present application in a free tripping state;

[0043] FIG17 is another schematic diagram of the operating mechanism provided in an embodiment of the present application in a free tripping state.

[0044] Reference numerals:

[0045] 01-Power supply and distribution system

[0046] 02-Power Module

[0047] 10-Power Equipment

[0048] 11-Cabinet

[0049] 20-Circuit Breaker

[0050] 21- Shell

[0051] 22-Operating handle

[0052] 23-Operating mechanism

[0053] 24-Flow-through components

[0054] 25-Interrupter

[0055] 26-Trip control component

[0056] 27-Arc suppression module

[0057] 110-User Operation Panel

[0058] 210-Circuit breaker operating panel

[0059] 231-First mounting plate

[0060] 232-Second mounting plate

[0061] 233-Lock assembly

[0062] 234-Operation Components

[0063] 235-First limit column

[0064] 236-Second limit column

[0065] 237-Part 1

[0066] 238-Part 2

[0067] 239-Part 3

[0068] 241-Moving contact

[0069] 242-static contact

[0070] 261-Backup protector

[0071] 262-Transformer

[0072] 2331-torsion spring

[0073] 2332-Return Spring

[0074] 2333-Limited Cylinder

[0075] 2334-arc guide groove

[0076] 2335-Connecting rod

[0077] 234a-First operating component

[0078] 234b-Second operating component DETAILED DESCRIPTION

[0079] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0080] In order to facilitate understanding of the circuit breaker and power equipment provided in the embodiment of the present application, the application scenario thereof is described below. The circuit breaker and power equipment provided in the embodiment of the present application can be widely used in various power supply and distribution systems. Figure 1 is a schematic diagram of an application scenario of the circuit breaker provided in the embodiment of the present application. As shown in Figure 1, in an example provided in the present application, the circuit breaker can be used in the power supply and distribution system 01 of the data center, for connecting, carrying, and disconnecting the current between the power supply network and the data center. The power supply and distribution system 01 may include a power module 02 (as shown in Figure 1, which is composed of a plurality of UPSs connected in parallel and in series) and a plurality of circuit breakers. Take the power supply and distribution system 01 as an example, which is provided with three circuits, namely the first circuit C1, the second circuit C2, and the third circuit C3. Each circuit is equipped with a corresponding circuit breaker. The first circuit C1 is connected to the power module O2, and a first circuit breaker K1 is provided at the input end of the power module O2, 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 backup circuit and is equipped with a fourth circuit breaker K4.

[0081] When the circuit between the power grid (or power source) and the data center needs to be connected, the first and second circuit breakers K1, K2, can be switched to the closed state. When the circuit between the power grid and the data center needs to be disconnected, either the first or second circuit breaker K1, K2, can be switched to the open state. In this way, the power on and off state of the data center is controlled by controlling the closed and open states of the circuit breakers. When the data center's electrical equipment requires repair or maintenance, the first and second circuit breakers K1, K2, can be switched to the open state, and the third or fourth circuit breaker K3, K4, can be switched to the closed state to facilitate repair and maintenance of the electrical equipment.

[0082] In addition, the circuit breaker of the present application can also be used in the power supply and distribution system 01 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 or maintained, the staff can switch the circuit breaker to the open state to facilitate the inspection, maintenance, etc. of the power equipment.

[0083] The above-mentioned power supply system may specifically include multiple power equipment 10. Figure 2 is a schematic diagram of the power equipment provided in an embodiment of the present application. As shown in Figure 2, each power equipment 10 includes a cabinet 11, and multiple power modules and multiple circuit breakers (K1, ..., Km) located in the cabinet 11. Among them, the side of the cabinet 11 facing the staff is the user operation surface 110. In this application, taking the state of the cabinet 11 placed on the ground as an example, the user operation surface 110 is perpendicular to the ground. The dimension of the user operation surface 110 parallel to the ground is the width, the dimension perpendicular to the ground is the height, and the dimension perpendicular to the user operation surface 110 is the depth. The aforementioned multiple power modules are stacked in sequence along the height direction H 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 direction W 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.

[0084] In existing power equipment, the limited width and height of the cabinet limit the number of circuit breakers on the user operating panel 110, making it impossible to meet the large-capacity and high-density layout requirements of the power supply and distribution system 01. Therefore, the present application provides a circuit breaker and power equipment that simplify the structure of the operating mechanism, thereby facilitating adjustment of the overall size of the circuit breaker, thereby changing the space occupied by the circuit breaker in the cabinet, thereby increasing the number of circuit breakers that can be arranged in the cabinet and improving the safety of the circuit breaker.

[0085] 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 limit the present application. As used in the specification and claims of this application, the singular expressions "a," "an," "said," "above," "the," and "this" are intended to include expressions such as "one or more," unless the context clearly indicates otherwise.

[0086] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0087] Figure 3 is a schematic diagram of a circuit breaker provided in an embodiment of the present application, and Figure 4 is another schematic diagram of a circuit breaker provided in an embodiment of the present application, with Figure 4 showing a cross-sectional view of the circuit breaker shown in Figure 3 along the line AA. As shown in Figures 3 and 4, the circuit breaker 20 includes a housing 21, an operating handle 22, an operating mechanism 23, a flow assembly 24, and an arc extinguishing chamber 25. Specifically, the operating handle 22 is connected to the operating mechanism 23. The flow assembly 24 includes a moving contact 241 and a stationary contact 242. In one embodiment, the end of the operating handle 22 distal to the operating mechanism 23 can extend beyond the housing 21, allowing an operator to push the operating handle 22 to close and open the circuit breaker. In another embodiment, the housing 21 is provided with a knob to manually open and close the circuit breaker 20. Specifically, the end of the operating handle 22 distal to the operating mechanism 23 is connected to the knob. When the operator manually operates the knob, turning the knob causes the operating handle 22 to move in the height direction h. 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 communicates with the remote controller to electrically open and close the circuit breaker 20. When an operator performs electric operation, they send a closing or opening command to the remote controller, which then controls the electric operating device to push the operating handle 22. In this embodiment, the operator can issue commands from close proximity to the circuit breaker 20 or remotely via a communication device. Furthermore, at least the portion of the operating handle 22 proximal to the operating mechanism 23, the operating mechanism 23, the moving contact 241, and the arc extinguishing chamber 25 are sequentially arranged within the housing 21 along the depth direction d of the circuit breaker 20. Along the depth direction d of the circuit breaker 20, the stationary contact 242 is located on the side of the moving contact 241 away from the operating mechanism 23. That is, along the depth direction d of the circuit breaker 20, the operating mechanism 23 is located on one side of the operating handle 22 and is in transmission connection with 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 operating mechanism 23 is connected to the moving contact 241. The operating handle 22 is used to control the operating mechanism 23 to drive the moving contact 241 to move, so that the moving contact 241 contacts or separates with the static contact 242. The arc extinguishing chamber 25 is used to extinguish the arc generated when the moving contact 241 and the static contact 242 separate.

[0088] In the present application, the side where the operating handle 22 extends from the housing 21 is the circuit breaker operating surface 210, which is used for personnel to perform operations such as closing and opening the circuit breaker, and checking the operating status of the circuit breaker 20. In the plane where the circuit breaker operating surface 210 is located, the dimension of the circuit breaker 20 along the direction in which the operating handle 22 is pushed is the height, and the dimension of the circuit breaker 20 perpendicular to the height direction h is the width. The dimension of the circuit breaker 20 along the direction perpendicular to the circuit breaker operating surface 210 is the depth. The circuit breaker 20 of the present application can be used in the power supply and distribution system 01, and the circuit breaker 20 can be specifically installed in the cabinet 11. When multiple circuit breakers 20 are installed in the cabinet 11, they are placed parallel to the width direction W of the cabinet 11. The circuit breaker operating surfaces 210 of the circuit breakers 20 face the same direction as the user operating surface of the cabinet 11. Furthermore, the height direction h of each circuit breaker 20 is in the same direction as the width direction W of the cabinet 11. The width direction w of each circuit breaker 20 is in the same direction as the height direction H of the cabinet 11. The depth direction d of each circuit breaker 20 is in the same direction as the depth direction D of the cabinet 11. In other words, each circuit breaker 20 is placed horizontally within the cabinet 11. Therefore, when a worker performs a closing or opening operation on a circuit breaker 20, the worker pushes the operating handle 22 along the width direction W of the cabinet 11. When the operating handle 22 is pushed to perform an opening or closing operation, the operating mechanism 23 moves with the operating handle 22 to cause the moving contact 241 to separate from or contact the static contact 242. When the moving contact 241 is in contact with the static contact 242, the circuit breaker 20 is in the closed state; when the moving contact 241 is separated from the static contact 242, the circuit breaker 20 is in the open state. In the circuit breaker 20 of the present application, at least the portion of the operating handle 22 close to the operating mechanism 23, the operating mechanism 23, the moving contact 241 and the arc extinguishing chamber 25 are arranged along the depth direction d of the circuit breaker 20, which can be regarded as being arranged in a layered manner, thereby reducing the height h of the circuit breaker 20 and reducing the space occupied by the circuit breaker 20, 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 on the first layer (electrical or manual operation layer), the operating mechanism 23 is located on the second layer (operation layer), a portion of the current-passing assembly 24 is located on the third layer (current-passing layer), and the arc extinguishing chamber 25 is located on the fourth layer (arc extinguishing layer).

[0089] Figure 5 is a schematic diagram of an operating mechanism according to an embodiment of the present application, and Figure 6 is another schematic diagram of an operating mechanism according to an embodiment of the present application, wherein the operating mechanism in Figure 6 omits the second mounting plate. As shown in Figures 5 and 6 , the operating mechanism 23 comprises a first mounting plate 231, a second mounting plate 232, a latch assembly 233, and at least one set of operating assemblies 234. The first mounting plate 231 and the second mounting plate 232 are positioned opposite each other along the width direction w of the circuit breaker 20, with the latch assembly 233 and the operating assembly 234 positioned between the first mounting plate 231 and the second mounting plate 232. The first mounting plate 231 and the second mounting plate 232 are respectively fixedly connected to the housing 21, and the operating handle 22 is rotatably connected to the first mounting plate 231 and the second mounting plate 232. The latch assembly 233 is used to lock or unlock the movement of the operating assembly 234. Figure 7 is another schematic diagram of an operating mechanism according to an embodiment of the present application. As shown in Figure 7, the operating assembly 234 comprises a trip latch CDF, an upper connecting rod BC, a lower connecting rod AB, and a spring BQ. The tripping latch CDF is rotatably connected to the first mounting plate 231 via a first fixed axis D. Along the height direction h of the circuit breaker 20, the latch assembly 233 is located on one side of the first fixed axis D, while the upper connecting rod BC and the lower connecting rod AB are located on the other side of the first fixed axis D. One end of the upper connecting rod BC is rotatably connected to the tripping latch CDF via a first rotation axis C, and the other end is rotatably connected to one end of the lower connecting rod AB via a second rotation axis B. The end of the lower connecting rod AB facing away from the upper connecting rod BC is connected to the moving contact 241. One end of the spring BQ is fixedly connected to the operating handle 22, and the other end is fixedly connected to the second rotation axis B. The first mounting plate 231 is provided with a first limiting post 235, which is used to limit the rotation of the tripping latch CDF and the upper connecting rod BC when the latch assembly 233 releases the tripping latch CDF. The upper connecting rod BC is provided with a second limiting post 236, which is used to limit the rotation angle of the tripping latch CDF when the operating handle 22 closes or opens the circuit breaker. Therefore, in this embodiment, the locking assembly 233 and the operating assembly 234 are arranged along the height direction h of the circuit breaker 20, which can realize the functions of locking and unlocking the operating assembly 234, and the structure of the operating mechanism 23 is simple, which is conducive to miniaturization of the circuit breaker 20.

[0090] Figure 8 is a schematic diagram of the operating mechanism provided by an embodiment of the present application in the open position. As shown in Figure 8 , the trip latch CDF comprises an integrally structured first portion 237, a second portion 238, and a third portion 239. The second portion 238 is positioned between the first and third portions 237, 239, and the first, second, and third portions 237, 238, 239 are arranged in an S-shape. The first portion 237 is positioned adjacent to the latch assembly 233, with a first fixed axis D pivotally connected between the first and second portions 237, 238. The third portion 239 is pivotally connected to the first rotation axis C. A first limiting post 235 extends between the first and second portions 237, 238. When the latch assembly 233 unlocks the trip latch CDF, the trip latch CDF rotates about the first fixed axis D, driving the upper connecting rod BC until the first portion 237 and the upper connecting rod BC abut against the first limiting post 235, stopping the rotation of the trip latch CDF and the upper connecting rod BC. The second limiting post 236 extends between the second portion 238 and the third portion 239. When the operating handle 22 is closed, the spring drives the second rotation axis B to rotate. The movement of the second rotation axis B, in turn, drives the upper connecting rod BC and the tripping catch CDF to rotate until the second portion 238 of the tripping catch CDF abuts the second limiting post 236, stopping the tripping catch CDF from rotating. When the operating handle 22 is opened, the spring drives the third rotational movement of the operating handle 22. The movement of the second rotation axis B, in turn, drives the upper connecting rod BC and the tripping catch CDF to rotate until the third portion 239 of the tripping catch CDF abuts the second limiting post 236, stopping the tripping catch CDF from rotating. Therefore, during both closing and opening, the second limiting post 236 can prevent the operating handle 22 from excessive rotation by adjusting the rotation angle of the tripping catch CDF.

[0091] The number of operating assemblies 234 in this application is not limited. For example, the operating mechanism 23 may include one, two, or more operating mechanisms 23, and this is not a limitation. As shown in FIG6 , in one embodiment, at least one operating assembly 234 includes a first operating assembly 234a and a second operating assembly 234b. The first mounting plate 231, the first operating assembly 234a, the second operating assembly 234b, and the second mounting plate 232 are sequentially arranged along the width direction w of the circuit breaker 20. The lower connecting rod AB, the upper connecting rod BC, and the tripping latch CDF of the first operating assembly 234a are sequentially arranged in a direction away from the first mounting plate 231, and the lower connecting rod AB, the upper connecting rod BC, and the tripping latch CDF of the second operating assembly 234b are sequentially arranged in a direction away from the second mounting plate 232.

[0092] In the aforementioned operating mechanism 23, the first rotation axis C of the first operating assembly 234a and the first rotation axis C of the second operating assembly 234b are integrally formed, thereby enabling the upper connecting rod BC of the first operating assembly 234a and the upper connecting rod BC of the second operating assembly 234b to move synchronously. Furthermore, the tripping latch CDF of the first operating assembly 234a and the tripping latch CDF of the second operating assembly 234b are integrally formed, further simplifying the structure of the operating mechanism 23.

[0093] FIG9 is a schematic diagram of the operating mechanism provided in the embodiment of the present application in the closed state. As shown in FIG9 , the lock assembly 233 of the present application can adopt a three-stage lock form. Specifically, the lock assembly 233 includes a primary lock link GH, a secondary lock link KIJ and a tertiary lock shaft LM, and the primary lock link GH, the secondary lock link KIJ and the tertiary lock shaft LM are respectively rotatably connected to the first mounting plate 231, and the primary lock link GH is located on the side of the secondary lock link KIJ and the tertiary lock shaft LM close to the tripping latch CDF. The tertiary lock shaft LM is used to lock or unlock the rotation of the secondary lock link KIJ relative to the housing 21. The secondary lock link KIJ is used to lock or unlock the rotation of the primary lock link GH relative to the housing 21. The primary lock link GH is used to lock or unlock the rotation of the tripping latch CDF relative to the housing 21.

[0094] Specifically, when the third-level lock is locked with the second-level lock, the end of the third-level lock shaft LM closest to the second-level lock link KIJ is a semicircular end. The end of the second-level lock link KIJ closest to the third-level lock shaft LM is provided with an overlapping portion, which is used to overlap the circular end and achieve rotational locking of the second-level lock link KIJ. Specifically, when the second-level lock is locked with the first-level lock, the end of the second-level lock link KIJ closest to the first-level lock link GH is used to abut the first-level lock link GH to achieve rotational locking of the first-level lock link GH.

[0095] Figure 10 is a schematic diagram of a lock assembly provided in an embodiment of the present application. As shown in Figure 10, in one embodiment, the lock assembly 233 further includes a torsion spring 2331 and a second fixed shaft I. The secondary lock link KIJ is rotatably connected to the first mounting plate 231 via the second fixed shaft I. The torsion spring 2331 is rotatably connected to the second fixed shaft I, and the torsion spring 2331 is relatively fixed to the secondary lock link KIJ. When the overlap between the overlapping portion and the circular end is unlocked, the torsion spring 2331 provides a restoring elastic force to drive the secondary lock link KIJ to rotate, causing the secondary lock link KIJ to move away from the primary lock link GH, thereby unlocking the rotation of the primary lock link GH.

[0096] In one embodiment, the latch assembly 233 further includes a return spring 2332 and a third fixed shaft G. The return spring 2332 is rotatably connected to the first mounting plate 231 via the third fixed shaft G. The primary latch link GH is fixed relative to the return spring 2332. The end of the secondary latch link KIJ, which is adjacent to the tripping latch CDF, is configured to abut against the tripping latch CDF. When the secondary latch link KIJ moves away from the primary latch link GH, the return spring 2332 provides a return force to drive the primary latch link GH to rotate, moving the primary latch link GH away from the tripping latch CDF, thereby unlocking the tripping latch CDF.

[0097] Figure 11 is another schematic diagram of the operating mechanism provided in an embodiment of the present application. As shown in Figure 11 , to prevent excessive rotation of the third-stage locking shaft LM, in one embodiment, the third-stage locking shaft LM is provided with a limiting cylinder 2333 , and the first mounting plate 231 is provided with an arcuate guide groove 2334 , within which the limiting cylinder 2333 is received and slides.

[0098] Figure 12 is another schematic diagram of the operating mechanism provided in an embodiment of the present application. As shown in Figure 12, in one embodiment, the secondary locking link KIJ includes two connecting rods 2335, which are arranged opposite each other and fixedly connected. The secondary locking link KIJ is a double-bladed structure and is positioned at the center of the operating mechanism 23 along the width direction w of the circuit breaker 20. The locking assembly 233 can be unlocked by rotating the tertiary locking shaft LM. This structure ensures more balanced force on the locking assembly 233 and enhances structural stability.

[0099] FIG13 is another schematic diagram of a circuit breaker provided in an embodiment of the present application. As shown in FIG13 , in one embodiment, the circuit breaker 20 further includes a trip control assembly 26 , which is disposed on one side of the moving contact along the height direction h of the circuit breaker 20 , and the trip control assembly 26 is transmission-connected to the latch assembly 233 . The trip control assembly 26 is configured to control the latch assembly 233 to drive the operating assembly 234 to move when a fault current is detected, thereby separating the moving contact from the static contact. The specific type of the trip control assembly 26 is not limited. In one embodiment, the trip control assembly 26 may include a backup protector 261 and a magnetic rod PN. The magnetic rod PN is rotatable about point P relative to the housing 21 . The backup protector 261 is magnetically connected to the magnetic rod PN, causing the magnetic rod PN to rotate about point P relative to the housing 21 . The magnetic rod PN is transmission-connected to the operating mechanism 23 . When a fault current is detected, the backup protector 261 magnetically attracts the magnetic rod PN, causing it to rotate counterclockwise. This magnetic rod PN also drives the operating mechanism 23. The latch assembly 233 is controlled by the trip control assembly 26 to move the spring BQ. Driven by the operating handle 22, the spring BQ moves the lower connecting rod AB, causing the moving contact 241 to move and thereby separate the moving contact from the stationary contact 242. The spring BQ also drives the lower connecting rod AB, driven by the trip control assembly 26, to move the moving contact 241 and thereby separate the moving contact from the stationary contact 242.

[0100] In another embodiment, the trip control assembly 26 includes a thermal-magnetic trip body, a thermally deformable metal part, and a magnetic snapping device. The thermally deformable metal part is connected to the thermal-magnetic trip body, and the thermally deformable metal part and the magnetic snapping device are respectively rotatably connected to the housing 21. The thermally deformable metal part and the magnetic snapping device are respectively transmission-connected to the operating mechanism 23. Along the width w of the circuit breaker 20, the thermal-magnetic trip body is located on one side of the operating mechanism 23. The thermal-magnetic trip body is configured to cause the thermally deformable metal part to deform due to heat accumulation when a first fault current is detected, thereby causing the thermally deformable metal part to rotate the three-stage latch shaft LM of the operating mechanism 23; and to cause the thermal-magnetic trip body to quickly engage the magnetic snapping device when a second fault current is detected, thereby causing the magnetic snapping device to rotate the three-stage latch shaft LM of the operating mechanism 23.

[0101] As shown in Figure 13, in one embodiment, the circuit breaker 20 further includes a controller, which is disposed on one side of the operating mechanism 23 along the width d of the circuit breaker 20. The trip control assembly 26 specifically includes a transformer 262, which is electrically connected to the controller. The transformer 262 is disposed on one side of the movable contact 241 along the height h of the circuit breaker 20, specifically on the side of the backup protector 261 facing away from the movable contact 241. When a fault current is detected, the transformer 262 transmits a fault current signal to the controller via the transformer 262 line. In another embodiment, the trip control assembly 26 further includes a magnetic flux component, which is electrically connected to the controller. The magnetic flux component includes a pin. A rotating fixed lever LW is disposed on the side of the pin proximate to the third-stage latch shaft LM of the operating mechanism 23. The pin extends from the housing of the magnetic flux component and rotates the rotating fixed lever LW, which in turn rotates the third-stage latch shaft LM. The controller is used to control the magnetic flux component to drive the ejector pin to extend out of the housing of the magnetic flux component according to the fault current signal, thereby pushing the three-stage lock shaft LM to rotate clockwise to drive the operating mechanism 23 to move.

[0102] In actual use, a worker can manually push the operating handle 22 in the direction of height h. Figure 14 is another schematic diagram of the operating mechanism provided by an embodiment of the present application in the closed state. Specifically, as shown in Figures 9 and 14, when the circuit breaker 20 is in the closed state, pushing the operating handle 22 in the direction of height h performs the opening operation. Figure 15 is another schematic diagram of the operating mechanism provided by an embodiment of the present application in the open state. As shown in Figures 8 and 15, when the operating handle 22 is pushed downward, it rotates clockwise about point R. As the operating handle 22 rotates, it pulls spring BQ clockwise, causing point B to move downward in the direction of height h. As point B moves from point C along the direction of height h to the other side, spring BQ exerts a tensile force on the lower connecting rod AB and the upper connecting rod BC. At this point, point B moves rightward under the tensile force of spring BQ, thereby pulling the lower connecting rod AB rightward. This causes the first fixed rod OA to rotate the moving contact clockwise about point O, separating it from the stationary contact 242 and achieving opening. At the same time, the jump buckle CDF is subjected to a counterclockwise rotation torque under the tension of the spring BQ. However, since the buckle between the third-level lock shaft LM and the second-level lock link KIJ is in a locked state, the buckle between the second-level lock link KIJ and the first-level lock link GH, and the buckle between the first-level lock link GH and the jump buckle CDF cannot be unlocked, so that the jump buckle CDF remains in a stationary state, that is, the operating component 234 is in a locked state.

[0103] Continuing with Figures 14 and 15 , when circuit breaker 20 is in the open state, the operating handle 22 is pushed in the direction of height h to close the circuit. When operating handle 22 is pushed upward, it rotates counterclockwise about point R. As operating handle 22 rotates, it pulls spring BQ counterclockwise, causing point B to move upward in the direction of height h. As point B moves from point C along the direction of height h to the other side, spring BQ applies tension to the lower connecting rod AB and the upper connecting rod BC. At this point, point B moves leftward under the tension of spring BQ, pulling lower connecting rod AB leftward, causing the moving contact to rotate counterclockwise about point O, thereby contacting stationary contact 242 and closing the circuit. Simultaneously, operating assembly 234 remains locked, causing trip latch CDF, primary lock link GH, secondary lock link KIJ, and tertiary lock shaft LM to remain stationary.

[0104] In addition, personnel can use various auxiliary components to open the circuit breaker 20. Figure 16 is a schematic diagram of the operating mechanism provided in the free tripping state according to an embodiment of the present application, and Figure 17 is another schematic diagram of the operating mechanism provided in the free tripping state according to an embodiment of the present application. Specifically, as shown in Figures 14, 16, and 17, when the circuit breaker 20 is in the closed state, when the trip control assembly 26 detects a fault current, the trip control assembly 26 drives the third-stage latch shaft LM to rotate clockwise. During this rotation, the third-stage latch shaft LM unlocks from the second-stage latch link KIJ. As described above, in the closed state, the trip latch CDF is subjected to a counterclockwise torque under the tension of spring BQ, resulting in a counterclockwise rotation tendency. When the third-stage latch shaft LM unlocks from the second-stage latch link KIJ, the latch between the second-stage latch link KIJ and the first-stage latch link GH, as well as the latch between the first-stage latch link GH and the trip latch CDF, also unlock simultaneously, freeing the trip latch CDF and allowing it to rotate counterclockwise about the first fixed axis D. As the trip latch CDF rotates counterclockwise, it pushes the primary lock link GH clockwise around the second rotation axis G. This causes the primary lock link GH to simultaneously push the secondary lock link KIJ clockwise around point I, thereby fully unlocking the lock assembly 233. Once the lock assembly 233 is fully unlocked, the trip latch CDF, while rotating counterclockwise, drives the second fixed rod CD counterclockwise, which in turn drives the spring BQ counterclockwise, causing point B to move downward along the height h. As point B moves from point C along the height h to the other side, spring BQ exerts a pulling force on the lower link AB and upper link BC. At this point, point B moves rightward under the pulling force of spring BQ, pulling the lower link AB rightward, causing the moving contact 241 to rotate clockwise around point O, separating it from the stationary contact 242 and achieving tripping.

[0105] As shown in Figures 4 and 13, the circuit breaker 20 also includes an arc extinguishing module 27 located on the side of the arc extinguishing chamber 25 away from the flow mechanism 24 along the depth direction d. The arc extinguishing module 27 is located in the fifth layer (arc extinguishing layer). The arc extinguishing module 27 is used to purify the gas ejected from the arc extinguishing chamber 25. An arc spray port is provided between the arc extinguishing module 27 and the arc extinguishing chamber 25, and the arc spray port connects the arc extinguishing chamber 25 and the arc extinguishing module 27. In one embodiment, the power equipment 10 also includes a circuit board located in the cabinet 11. The circuit board and the multiple circuit breakers 20 are arranged in sequence along the depth direction D of the cabinet 11, and the circuit board is arranged close to the arc extinguishing module 27. The arc extinguishing module 27 can absorb the electric ions ejected from the arc extinguishing chamber 25, so that the gas ejected from the circuit breaker 20 through the arc extinguishing module 27 can achieve completely zero arcing, thereby avoiding adverse effects on the circuit board of the power equipment 10.

[0106] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection 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 breakers is in the same direction as the width direction of the cabinet, the width direction of the circuit breakers is in the same direction as the height direction of the cabinet, and the depth direction of the circuit breakers is in the same direction as the depth direction of the cabinet; The circuit breaker includes a housing, an operating handle, an operating mechanism, a current-carrying assembly, and an arc-extinguishing chamber, wherein the operating handle is connected to the operating mechanism; the current-carrying assembly includes a moving contact and a static contact, the moving contact being rotatable relative to the housing, and the static contact being located on a side of the moving contact away from the operating mechanism along the depth direction of the circuit breaker; at least a portion of the operating handle proximate to the operating mechanism, the operating mechanism, the moving contact, and the arc-extinguishing chamber are sequentially arranged within the housing along the depth direction of the circuit breaker; the operating handle is used to control the operating mechanism to drive the moving contact to move, so that the moving contact contacts or separates from the static contact; and the arc-extinguishing chamber is used to extinguish an arc generated when the moving contact separates from the static contact; The operating mechanism includes a first mounting plate and a second mounting plate disposed opposite each other along the width direction of the circuit breaker, and a locking assembly and at least one set of operating assemblies located between the first mounting plate and the second mounting plate; the first mounting plate and the second mounting plate are respectively fixedly connected to the housing, and the operating handle is rotatably connected to the first mounting plate and the second mounting plate; the locking assembly is used to lock or unlock the movement of the operating assembly; The operating assembly includes a trip latch, an upper connecting rod, a lower connecting rod and a spring; the trip latch is rotatably connected to the first mounting plate via a first fixed shaft; along the height direction of the circuit breaker, the lock assembly is located on one side of the first fixed shaft, and the upper connecting rod and the lower connecting rod are located on the other side of the first fixed shaft; one end of the upper connecting rod is rotatably connected to the trip latch via a first rotating shaft, and the other end is rotatably connected to one end of the lower connecting rod via a second rotating shaft; the end of the lower connecting rod away from the upper connecting rod is connected to the moving contact; one end of the spring is fixedly connected to the operating handle, and the other end is fixedly connected to the second rotating shaft; The first mounting plate is provided with a first limiting column, which is used to limit the rotation of the trip latch and the upper connecting rod when the locking assembly unlocks the trip latch; the upper connecting rod is provided with a second limiting column, which is used to limit the rotation angle of the trip latch when the operating handle is closed or opened.

2. The electric power equipment according to claim 1, characterized in that The operating handle is pushed along the height direction of the circuit breaker, and when the operating handle is closed, the operating handle is close to the locking assembly.

3. The power equipment according to claim 1 or 2, characterized in that: The jump buckle comprises a first portion, a second portion, and a third portion of an integral structure, wherein the second portion is located between the first portion and the third portion, and the first portion, the second portion, and the third portion are arranged in an S shape, the first portion is arranged close to the lock buckle assembly, the first fixed shaft is rotatably connected between the first portion and the second portion, and the third portion is rotatably connected to the first rotating shaft; The first limiting post extends between the first portion and the second portion; when the locking assembly unlocks the jump buckle, the jump buckle rotates around the first fixed axis and drives the upper connecting rod to move until the first portion of the jump buckle and the upper connecting rod respectively abut against the first limiting post, so that the jump buckle and the upper connecting rod stop rotating; The second limiting column extends between the second part and the third part; when the operating handle is closed, the operating handle drives the second rotating shaft to move through the spring, and the movement of the second rotating shaft drives the upper connecting rod and the trip buckle to rotate in turn until the second part of the trip buckle abuts against the second limiting column, so that the trip buckle stops rotating; when the operating handle is opened, the operating handle drives the third rotation movement through the spring, and the movement of the second rotating shaft drives the upper connecting rod and the trip buckle to rotate in turn until the third part of the trip buckle abuts against the second limiting column, so that the trip buckle stops rotating.

4. The electric power equipment according to any one of claims 1 to 3, characterized in that The at least one operating component includes a first operating component and a second operating component; The first mounting plate, the first operating assembly, the second operating assembly and the second mounting plate are arranged in sequence along the width direction of the circuit breaker, wherein the lower connecting rod, the upper connecting rod and the tripping catch of the first operating assembly are arranged in sequence along the direction away from the first mounting plate, and the lower connecting rod, the upper connecting rod and the tripping catch of the second operating assembly are arranged in sequence along the direction away from the second mounting plate.

5. The electric power equipment according to claim 4, characterized in that The first rotating shaft of the first operating assembly and the first rotating shaft of the second operating assembly are an integrated structure.

6. The power equipment according to claim 4 or 5, characterized in that: The jump buckle of the first operating assembly and the jump buckle of the second operating assembly are an integrated structure.

7. The electric power equipment according to any one of claims 1 to 6, characterized in that: The lock assembly includes a primary lock link, a secondary lock link, and a tertiary lock shaft, wherein the primary lock link, the secondary lock link, and the tertiary lock shaft are respectively rotatably connected to the first mounting plate, and the primary lock link is located on a side of the secondary lock link and the tertiary lock shaft close to the trip lock; The third-level locking shaft is used to lock or unlock the rotation of the second-level locking link relative to the shell; the second-level locking link is used to lock or unlock the rotation of the first-level locking link relative to the shell; the first-level locking link is used to lock or unlock the rotation of the jump buckle relative to the shell.

8. The electric power equipment according to claim 7, characterized in that The end of the third-level lock shaft close to the second-level lock link is a semicircular end, and the end of the second-level lock link close to the third-level lock shaft is provided with an overlapping portion, the overlapping portion is used to overlap with the circular end, and the rotation locking of the second-level lock link is achieved by overlapping the overlapping portion with the circular end; One end of the secondary locking link close to the primary locking link is used to abut against the primary locking link to achieve rotational locking of the primary locking link.

9. The electric power equipment according to claim 8, characterized in that The lock assembly further includes a torsion spring and a second fixed shaft, the secondary lock link is rotatably connected to the first mounting plate via the second fixed shaft, the torsion spring is rotatably connected to the second fixed shaft, and the torsion spring and the secondary lock link are relatively fixed; When the overlap between the overlap portion and the circular end portion is unlocked, the torsion spring drives the secondary lock link to rotate, so that the secondary lock link is away from the primary lock link, thereby unlocking the rotation of the primary lock link.

10. The electric power equipment according to claim 9, characterized in that The lock assembly further includes a return spring and a third fixed shaft, the return spring being rotatably connected to the first mounting plate via the third fixed shaft, and the primary lock connecting rod being relatively fixed to the return spring; The end of the secondary locking link close to the jump buckle is used to abut against the jump buckle; when the secondary locking link is away from the primary locking link, the return spring drives the primary locking link to rotate, so that the primary locking link is away from the jump buckle, thereby unlocking the rotation of the jump buckle.

11. The electric power equipment according to any one of claims 7 to 10, characterized in that: The three-stage lock shaft is provided with a limiting cylinder, and the first mounting plate is provided with an arc-shaped guide groove. The limiting cylinder is accommodated in the arc-shaped guide groove and slides along the arc-shaped guide groove.

12. The electric power equipment according to any one of claims 7 to 11, characterized in that: The secondary locking link includes two links, which are arranged opposite to each other and fixedly connected.

13. The electric power equipment according to any one of claims 1 to 12, characterized in that: The circuit breaker also includes a trip control assembly, which is arranged on one side of the moving contact along the height direction of the circuit breaker and is in transmission connection with the locking assembly; the trip control assembly is used to control the locking assembly to drive the operating assembly to move when a fault current is detected, so as to separate the moving contact from the static contact.

14. A circuit breaker, characterized in that: The circuit breaker includes a housing, an operating handle, an operating mechanism, a current-passing assembly, and an arc extinguishing chamber, wherein: The operating handle is connected to the operating mechanism; the flow assembly includes a moving contact and a static contact, the moving contact can rotate relative to the housing, and the static contact is located on the side of the moving contact away from the operating mechanism along the depth direction of the circuit breaker; at least the portion of the operating handle close to the operating mechanism, the operating mechanism, the moving contact and the arc extinguishing chamber are located along the depth direction of the circuit breaker. are sequentially arranged in the housing; the operating handle is used to control the operating mechanism to drive the moving contact to move, so that the moving contact is in contact with or separated from the static contact; the arc extinguishing chamber is used to eliminate the arc generated when the moving contact is separated from the static contact; The operating mechanism includes a first mounting plate and a second mounting plate disposed opposite each other along the width direction of the circuit breaker, and a locking assembly and at least one set of operating assemblies located between the first mounting plate and the second mounting plate; the first mounting plate and the second mounting plate are respectively fixedly connected to the housing, and the operating handle is rotatably connected to the first mounting plate and the second mounting plate; the locking assembly is used to lock or unlock the movement of the operating assembly; The operating assembly includes a trip latch, an upper connecting rod, a lower connecting rod and a spring; the trip latch is rotatably connected to the first mounting plate via a first fixed shaft; along the height direction of the circuit breaker, the lock assembly is located on one side of the first fixed shaft, and the upper connecting rod and the lower connecting rod are located on the other side of the first fixed shaft; one end of the first upper connecting rod is rotatably connected to the trip latch via a first rotating shaft, and the other end is rotatably connected to one end of the lower connecting rod via a second rotating shaft; the end of the lower connecting rod away from the upper connecting rod is connected to the moving contact; one end of the spring is fixedly connected to the operating handle, and the other end is fixedly connected to the second rotating shaft; The first mounting plate is provided with a first limiting column, which is used to limit the rotation of the trip latch and the upper connecting rod when the locking assembly unlocks the trip latch; the upper connecting rod is provided with a second limiting column, which is used to limit the rotation angle of the trip latch when the operating handle is closed or opened.

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