A large capacity power distribution device
By adopting a fixed docking plate and guide rail structure in large-capacity power distribution equipment, the circuit breaker slides on the guide rail, realizing the smooth movement and precise docking of the circuit breaker. This solves the problems of high insertion resistance and maintenance safety when the large-capacity power distribution equipment is put into the working position, reduces the failure rate and contact resistance, and ensures the safety of power supply lines and equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN TIANAN CHEM CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-14
AI Technical Summary
When large-capacity power distribution equipment is sent into the working position, the resistance of the plug-in is large and the weight is heavy, making it difficult to send it to the working position smoothly. This can easily lead to poor contact of the plug-in, increase contact resistance and cause overheating faults. Moreover, maintenance requires two people to work together, which poses a safety hazard.
The circuit breaker adopts a fixed docking plate and guide rail structure, and slides on the upper and lower guide rails. The copper busbars connected to the docking plate are fixedly connected through the incoming and feeder lines to ensure that the circuit breaker moves smoothly in a fixed direction. The connecting plug and the socket are precisely aligned to reduce shaking and offset, achieve surface contact to reduce resistance, and ensure the stability and safety of the electrical connection.
It improves the smoothness of connection and disconnection, reduces the failure rate, ensures the safety of power supply line and equipment maintenance, and reduces arcing and overheating problems caused by poor contact.
Smart Images
Figure CN224502647U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage power supply equipment technology, and in particular to a large-capacity power distribution device. Background Technology
[0002] In low-voltage power supply systems, to save space and investment costs, large-capacity power distribution devices are often used for equipment power supply. The input and feeder ends of these large-capacity power distribution devices are connected using multiple plug-in connectors. Due to equipment maintenance needs, power outages and restorations are occasionally required. When the large-capacity power distribution device is put into the "working position," it needs to overcome the resistance of the plug-in connectors. The more plug-in connectors there are, the greater the resistance. In addition, the large-capacity power distribution device itself is relatively heavy, and usually requires two people to manually move it to the "working position." It is difficult to ensure stability during the process, which can easily cause poor contact of the plug-in connectors, leading to increased contact resistance and overheating faults. Utility Model Content
[0003] The purpose of this utility model is to provide a high-capacity power distribution device to solve the problems existing in the prior art, improve the smoothness of connection and disconnection, reduce the failure rate, and ensure the safety of power supply line and equipment maintenance operations.
[0004] To achieve the above objectives, this utility model provides the following solution:
[0005] This utility model provides a high-capacity power distribution device, including a frame, a circuit breaker, and a mounting body. The mounting body includes a docking plate, an incoming line connector, a feeder connector, an upper guide rail, and a lower guide rail. The docking plate is fixedly disposed within the frame, and both the incoming and outgoing sides of the docking plate are provided with multiple connecting plug holes. The incoming line connector includes multiple incoming line plugs, each corresponding one-to-one with a connecting plug hole on the incoming side of the docking plate, and the incoming line plug is electrically connected to the connecting plug hole via an incoming line connecting copper busbar. The feeder connector includes multiple feeder connecting copper busbars, and the feeder connecting... The copper busbars correspond one-to-one with the connecting plug holes on the outgoing side of the docking plate, and the feeder connecting copper busbars are energized and connected to the corresponding connecting plug holes; the upper guide rail is fixedly installed at the upper end of the docking plate, and the lower guide rail is fixedly installed at the lower end of the docking plate; the circuit breaker is slidably installed on the upper guide rail and the lower guide rail along the first direction; multiple connecting plugs are fixedly installed at both the inlet and outlet ends of the circuit breaker; the connecting plugs correspond one-to-one with the connecting plug holes, and after the circuit breaker moves along the first direction, each connecting plug can be inserted into the corresponding connecting plug hole.
[0006] Preferably, the mounting body further includes an infeed mechanism; the infeed mechanism includes a rotary pusher, a sliding block, and a lead screw; the rotary pusher includes a rotating rod, a push rod, and a connecting plate; the rotating rod is rotatably mounted on the docking plate about a first axis, the first axis being perpendicular to the first direction; the axis of the push rod is parallel to the axis of the rotating rod, and the push rod is fixedly connected to the rotating rod via a connecting frame, the push rod being able to push the circuit breaker to move along the first direction, so that each of the connecting plugs is disengaged from the corresponding connecting socket; one end of the connecting plate is fixedly connected to the rotating rod, and a connecting shaft is provided on the connecting plate; a sliding groove is provided on the upper guide rail, and the sliding block is slidably mounted in the sliding groove along the first direction; a connecting plate is fixed on the sliding block, and a through connecting groove is opened on the connecting plate, the connecting shaft passing through the through connecting groove; a through internal threaded hole is opened on the sliding block; the lead screw is threadedly connected in the internal threaded hole, and both ends of the lead screw are rotatably connected to the upper guide rail respectively.
[0007] Preferably, the in-and-out mechanism further includes a crank handle; the end of the lead screw away from the docking plate is the docking end; the upper guide rail is provided with a docking hole, and one end of the crank handle can pass through the docking hole and be fixedly connected to the docking end.
[0008] Preferably, at least one positioning hole is provided on both the inlet and outlet sides of the docking plate; a plurality of positioning pins are fixedly provided on the side of the circuit breaker having the connecting plug, and the positioning pins correspond one-to-one with the positioning holes.
[0009] Preferably, the end of the connecting plug near the connecting socket is provided with at least one first guide slope.
[0010] Preferably, a U-shaped mating frame is fixedly installed on the circuit breaker; the U-shaped mating frame has an upper slide and a lower slide; the upper slide has at least one upper sliding plate, and at least one upper sliding groove is provided on the upper guide rail, the upper sliding plate and the upper sliding groove correspond one-to-one, and the upper sliding plate is slidably disposed in the upper sliding groove along the first direction; the lower slide has a lower sliding plate, and a lower sliding groove is provided on the lower guide rail, and the lower sliding plate is slidably disposed in the lower sliding groove along the first direction.
[0011] Preferably, the upper sliding groove includes a horizontal groove and a vertical groove, with one end of the horizontal groove connected to one end of the vertical groove.
[0012] Preferably, the circuit breaker has at least one mating hook rotatably disposed on the side near the docking plate about a second axis, the second axis being parallel to the first axis; the mating hook has a groove and a guide surface, and the push rod can be located in the groove; when the push rod rotates about the first axis, the push rod can rotate into the groove along the guide surface.
[0013] Preferably, in the first direction, the distance between the end of the positioning pin near the docking plate and the circuit breaker is greater than the distance between the end of the connecting plug near the docking plate and the circuit breaker.
[0014] Preferably, the circuit breaker has a manual opening and closing handle.
[0015] The present invention achieves the following technical advantages over the prior art:
[0016] The high-capacity power distribution device provided by this utility model employs a fixed docking plate, with both the incoming and outgoing connectors fixedly connected to the docking plate. A circuit breaker moves along upper and lower guide rails, connecting the circuit breaker's plug to the connecting socket on the docking plate for on / off connection. The circuit breaker slides along the upper and lower guide rails, which provide precise guidance for its movement, ensuring smooth movement along a fixed primary direction during connection and disconnection, avoiding wobbling and offset. This guarantees accurate docking and separation between the plug and the connecting socket, thus improving the smoothness of connection and disconnection. The circuit breaker's plug corresponds one-to-one with the connecting socket on the docking plate; this precise fit allows the plug to be accurately inserted into the socket during connection, and the contact area between the plug and the socket is relatively large. The tight fit ensures a good electrical connection and helps reduce impact and vibration during connection. When disconnecting, the tight fit between the two components makes the separation process smoother, avoiding problems such as arcing caused by looseness or poor contact. The incoming line connector is energized through the connecting copper busbar to the connecting socket on the incoming side of the docking plate, and the feeder connector is energized through the connecting socket on the outgoing side of the docking plate. This copper busbar connection method has good conductivity and stability, effectively reducing resistance and heat generation, thereby reducing the possibility of failure due to poor electrical connection. When maintenance of the power supply line or equipment is required, the circuit breaker can be slid along the guide rail to pull the connecting plug out of the connecting socket, thereby achieving electrical isolation between the circuit breaker and the docking plate and ensuring the safety of power supply line and equipment maintenance operations. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A schematic diagram of the overall structure of the large-capacity power distribution device provided by this utility model;
[0019] Figure 2 A structural schematic diagram of the large-capacity power distribution device provided by this utility model from another perspective;
[0020] Figure 3 A schematic diagram of the structure of the large-capacity power distribution device after the circuit breaker is removed, as provided by this utility model.
[0021] Figure 4 A schematic diagram of the structure of a circuit breaker with a U-shaped mounting bracket in a large-capacity power distribution device provided by this utility model;
[0022] Figure 5 A partial structural diagram of the inlet / outlet mechanism in the large-capacity power distribution device provided by this utility model.
[0023] In the picture:
[0024] 10-Framework;
[0025] 20-Matching board; 21-Incoming line connection copper busbar; 22-Incoming line plug; 23-Feeder connection copper busbar; 24-Connecting plug hole; 25-Positioning hole;
[0026] 30-Rotating rod; 31-Push rod; 32-Connecting plate; 321-Connecting shaft; 33-Sliding block; 331-Internal threaded hole; 332-Connecting plate; 333-Connecting long slot; 34-Lead screw;
[0027] 40 - Upper guide rail; 41 - Upper slide rail; 411 - Horizontal groove; 412 - Vertical groove;
[0028] 50 - Lower guide rail; 51 - Lower slide groove;
[0029] 60-Circuit breaker; 61-Connecting plug; 611-First guide ramp; 62-Positioning pin; 621-Second guide ramp; 63-U-shaped mating frame; 64-Matching hook; 641-Groove; 642-Guide surface; 65-Manual opening and closing handle. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] The purpose of this utility model is to provide a high-capacity power distribution device to solve the problems existing in the prior art, improve the smoothness of connection and disconnection, reduce the failure rate, and ensure the safety of power supply line and equipment maintenance operations.
[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0033] Example 1
[0034] This embodiment provides a high-capacity power distribution device, such as... Figures 1-5 As shown, the system includes a frame 10, a circuit breaker 60, and a mounting body. The mounting body includes a docking plate 20, an incoming line connector, a feeder connector, an upper guide rail 40, and a lower guide rail 50. The docking plate 20 is fixedly installed inside the frame 10 (the inlet and outlet positions of the frame 10 can be equipped with a door; after opening the door, the circuit breaker 60 can be removed from the inlet and outlet positions of the frame 10 by a crank). The docking plate 20 has multiple connecting plug holes 24 on both the incoming and outgoing sides (three on each side). The incoming line connector includes multiple incoming line plugs 22, each corresponding to a connecting plug hole 24 on the incoming side of the docking plate 20. The incoming line plug 22 connects to the connecting plug hole 24 via an incoming line connecting copper busbar 21. The circuit breaker 60 is electrically connected; the feeder connector includes multiple feeder connecting copper busbars 23, each of which corresponds to a connecting plug hole 24 on the output side of the mating plate 20, and the feeder connecting copper busbars 23 and the corresponding connecting plug holes 24 are electrically connected; the upper guide rail 40 is fixedly installed at the upper end of the mating plate 20, and the lower guide rail 50 is fixedly installed at the lower end of the mating plate 20; the circuit breaker 60 is slidably installed on the upper guide rail 40 and the lower guide rail 50 along the first direction; multiple connecting plugs 61 are fixedly installed at both the inlet and outlet ends of the circuit breaker 60; each connecting plug 61 corresponds to a connecting plug hole 24, and after the circuit breaker 60 moves along the first direction, each connecting plug 61 can be inserted into the corresponding connecting plug hole 24.
[0035] By employing a fixed mating plate 20, with both the incoming and outgoing connectors fixedly connected to it, and using the movement of the circuit breaker 60 on the upper guide rail 40 and lower guide rail 50, the connecting plug 61 on the circuit breaker 60 is connected to the connecting socket 24 on the mating plate 20 for on / off connection. The circuit breaker 60 slides along the upper guide rail 40 and lower guide rail 50, providing precise guidance for its movement. This allows it to move smoothly along a fixed first direction during connection and disconnection, avoiding wobbling and offset, and ensuring accurate mating and separation between the connecting plug 61 and the connecting socket 24, thereby improving the smoothness of connection and disconnection. The connecting plug 61 of the circuit breaker 60 corresponds one-to-one with the connecting socket 24 on the mating plate 20. This precise fit ensures that the plug can be accurately inserted into the socket during connection, and the contact area between the plug and the socket is relatively large, resulting in better contact. The tight fit ensures a good electrical connection and helps reduce impact and vibration during connection. When disconnecting, the tight fit between the two components makes the separation process smoother, avoiding problems such as arcing caused by looseness or poor contact. The inlet plug 22 is energized through the inlet connecting copper busbar 21 and the connecting plug hole 24 on the inlet side of the docking plate 20, while the feeder connecting copper busbar 23 is energized through the connecting plug hole 24 on the outlet side of the docking plate 20. This copper busbar connection method has good conductivity and stability, effectively reducing resistance and heat generation, thereby reducing the possibility of failure due to poor electrical connection. When maintenance of the power supply line or equipment is required, the circuit breaker 60 can be slid along the guide rail to pull the connecting plug 61 out of the connecting plug hole 24, thereby achieving electrical isolation between the circuit breaker 60 and the docking plate 20 and ensuring the safety of power supply line and equipment maintenance operations.
[0036] Specifically, the feeder connector eliminates the original feeder plug and connects directly to the distribution panel cable compartment and equipment cables via the feeder connection copper busbar 23. In other words, the original connection point is optimized from point contact to surface contact.
[0037] Specifically, due to the narrow space of the vertical busbar in the power distribution cabinet, the incoming line connector still adopts plug-in connection. However, the plug-in is connected to the mating plate 20 through the incoming line connection copper busbar 21. When the power is cut off, the incoming line plug-in 22 of the incoming line connector does not need to be disconnected. Only the circuit breaker 60 needs to be moved.
[0038] To facilitate a smoother connection of circuit breaker 60, the following settings can also be made:
[0039] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 3 and Figure 5As shown, the mounting body also includes an infeed mechanism; the infeed mechanism includes a rotary pusher, a sliding block 33, and a lead screw 34; the rotary pusher includes a rotating rod 30, a push rod 31, and a connecting plate 32; the rotating rod 30 is rotatably mounted on the docking plate 20 around a first axis, the first axis being perpendicular to a first direction; the axis of the push rod 31 is parallel to the axis of the rotating rod 30, and the push rod 31 is fixedly connected to the rotating rod 30 via a connecting bracket, the push rod 31 being able to push the circuit breaker 60 to move along the first direction, so that each connecting plug 61 is disengaged from the corresponding connecting socket 24; one end of the connecting plate 32 is fixedly connected to the rotating rod 30, and the connecting plate 32 is provided with a connecting... The connecting shaft 321 is connected to the upper guide rail 40, which has a sliding groove. The sliding block 33 is slidably disposed in the sliding groove along the first direction. A connecting plate 332 is fixed on the sliding block 33 (the sliding groove has a side opening on the side near the connecting shaft 321, and the end of the connecting plate 332 near the connecting shaft 321 passes through the side opening and is connected to the connecting shaft 321). A through connecting groove 333 is provided on the connecting plate 332, and the connecting shaft 321 passes through the through connecting groove 333. A through internal threaded hole 331 is provided on the sliding block 33. The lead screw 34 is threadedly connected to the internal threaded hole 331, and both ends of the lead screw 34 are rotatably connected to the upper guide rail 40.
[0040] In the optional solutions of this embodiment, the preferred option is that the in-and-out mechanism further includes a crank handle; the end of the lead screw 34 away from the docking plate 20 is the docking end; the upper guide rail 40 is provided with a docking hole, and one end of the crank handle can pass through the docking hole and be fixedly connected to the docking end.
[0041] Specifically, the docking end can be set as a slot, and one end of the crank handle is a corresponding locking block. The locking block and the slot cooperate with each other to achieve a fixed connection.
[0042] The following are the settings instructions for the docking plate 20:
[0043] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 3 and Figure 4 As shown, at least one positioning hole 25 is provided on both the inlet and outlet sides of the docking plate 20; a plurality of positioning pins 62 are fixedly provided on the side of the circuit breaker 60 with the connecting plug 61, and the positioning pins 62 correspond one-to-one with the positioning holes 25.
[0044] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 4 As shown, the end of the connecting plug 61 near the connecting socket 24 is provided with at least one first guide slope 611.
[0045] Specifically, the end of the connecting plug 61 near the connecting socket 24 has two opposing first guide bevels 611.
[0046] The following are the relevant settings instructions for circuit breaker 60:
[0047] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 4 As shown, a U-shaped mounting bracket 63 is fixedly installed on the circuit breaker 60; the U-shaped mounting bracket 63 has an upper slide and a lower slide; the upper slide has at least one upper sliding plate, and at least one upper sliding groove 41 is provided on the upper guide rail 40, the upper sliding plate and the upper sliding groove 41 correspond one-to-one, and the upper sliding plate is slidably disposed in the upper sliding groove 41 along the first direction; the lower slide has a lower sliding plate, and a lower sliding groove 51 is provided on the lower guide rail 50, and the lower sliding plate is slidably disposed in the lower sliding groove 51 along the first direction.
[0048] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 3 As shown, the upper sliding groove 41 includes a horizontal groove 411 and a vertical groove 412, with one end of the horizontal groove 411 connected to one end of the vertical groove 412.
[0049] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 4 and Figure 5 As shown, the circuit breaker 60 has at least one mating hook 64 rotatably mounted on the side near the docking plate 20 around the second axis (there are two mating hooks 64, one above the other, which are fixed together by a fixed connecting plate. The fixed connecting plate can rotate around the second axis within a certain angle range. The fixed connecting plate is rotatably connected to a mating rod around the second axis, and the fixed connecting plate is connected to the mating rod by a torsion spring. A limiting plate can be provided on the side of the fixed connecting plate near the U-shaped mating frame 63 in the direction of rotation around the second axis. The cooperation between the torsion spring and the limiting plate keeps the fixed connecting plate in a stable position). The second axis is parallel to the first axis. The mating hook 64 has a groove 641 and a guide surface 642, and the push rod 31 can be located in the groove 641. When the push rod 31 rotates around the first axis, the push rod 31 can rotate into the groove 641 along the guide surface 642. Specifically, during the closing process, as the push rod 31 rotates around the first axis, it can enter the groove 641 along the guide surface 642 and pull the circuit breaker 60 along the first direction to complete the docking with each connecting plug hole 24. During the opening process, as the push rod 31 rotates around the first axis, it can first push the circuit breaker 60 from the groove 641 to move along the first direction, causing each connecting plug 61 to disengage from the position away from the corresponding connecting plug hole 24 and exit the groove 641.
[0050] Specifically, the groove 641 of the hook 64 supports the entry and exit of the push rod 31.
[0051] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 4 As shown, in the first direction, the distance between the end of the locating pin 62 near the docking plate 20 and the circuit breaker 60 is greater than the distance between the end of the connecting plug 61 near the docking plate 20 and the circuit breaker 60.
[0052] Specifically, the end of the locating pin 62 near the locating hole 25 is provided with at least one second guide slope 621 for easy insertion.
[0053] Among the optional solutions in this embodiment, the more preferred one is as follows: Figure 1 As shown, the circuit breaker 60 has a manual opening and closing handle 65. Specifically, the manual opening and closing handle 65 is used to disconnect and connect the moving contacts and stationary contacts within the circuit breaker 60.
[0054] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A high-capacity power distribution device, characterized in that: Includes the frame, circuit breaker, and mounting body; The mounting body includes a docking plate, an inlet connector, a feeder connector, an upper guide rail, and a lower guide rail; The docking plate is fixedly installed within the frame. Both the inlet and outlet sides of the docking plate have multiple connecting holes. The inlet connector includes multiple inlet plugs, each corresponding to one of the connecting holes on the inlet side of the docking plate, and each inlet plug is electrically connected to the connecting hole via an inlet connecting copper busbar. The feeder connector includes multiple feeder connecting copper busbars, each corresponding to one of the connecting holes on the outlet side of the docking plate, and each feeder connecting copper busbar is electrically connected to the corresponding connecting hole. The upper guide rail is fixedly installed at the upper end of the docking plate, and the lower guide rail is fixedly installed at the lower end of the docking plate. The circuit breaker is slidably mounted on the upper guide rail and the lower guide rail along the first direction; the inlet and outlet ends of the circuit breaker are each fixedly provided with a plurality of connecting plugs; the connecting plugs correspond one-to-one with the connecting insertion holes, and after the circuit breaker moves along the first direction, each connecting plug can be inserted into the corresponding connecting insertion hole.
2. The large-capacity power distribution device according to claim 1, characterized in that: The mounting body also includes an infeed mechanism; the infeed mechanism includes a rotary pusher, a sliding block, and a lead screw; The rotating ejector includes a rotating rod, a push rod, and a connecting plate; the rotating rod is rotatably mounted on the docking plate about a first axis, the first axis being perpendicular to the first direction; the axis of the push rod is parallel to the axis of the rotating rod, and the push rod is fixedly connected to the rotating rod via a connecting frame; the push rod can push the circuit breaker to move along the first direction, so that each of the connecting plugs disengages from the corresponding connecting socket; one end of the connecting plate is fixedly connected to the rotating rod, and a connecting shaft is provided on the connecting plate; The upper guide rail is provided with a sliding groove, and the sliding block is slidably disposed in the sliding groove along the first direction; a connecting plate is fixed on the sliding block, and a through connecting groove is opened on the connecting plate, and the connecting shaft passes through the through connecting groove; a through internal thread hole is opened on the sliding block. The lead screw is threaded into the internal threaded hole, and both ends of the lead screw are rotatably connected to the upper guide rail.
3. The large-capacity power distribution device according to claim 2, characterized in that: The entry / exit mechanism also includes a crank handle; The end of the lead screw away from the docking plate is the docking end; the upper guide rail is provided with a docking hole, and one end of the crank handle can pass through the docking hole and be fixedly connected to the docking end.
4. The large-capacity power distribution device according to claim 1, characterized in that: The inlet and outlet sides of the docking plate are each provided with at least one positioning hole; The circuit breaker has a plurality of positioning pins fixedly installed on one side of the connecting plug, and the positioning pins correspond one-to-one with the positioning holes.
5. The large-capacity power distribution device according to claim 1, characterized in that: The end of the connector near the connector hole is provided with at least one first guide slope.
6. The large-capacity power distribution device according to claim 1, characterized in that: A U-shaped mounting bracket is fixedly installed on the circuit breaker; the U-shaped mounting bracket has an upper sliding bracket and a lower sliding bracket; The upper slide has at least one upper slide plate, and the upper guide rail is provided with at least one upper slide groove. The upper slide plate and the upper slide groove correspond one-to-one, and the upper slide plate is slidably disposed in the upper slide groove along the first direction. The slide rail has a lower slide plate, and a sliding groove is provided on the lower guide rail. The lower slide plate is slidably disposed in the sliding groove along the first direction.
7. The large-capacity power distribution device according to claim 6, characterized in that: The upper sliding groove includes a horizontal groove and a vertical groove, with one end of the horizontal groove connected to one end of the vertical groove.
8. The large-capacity power distribution device according to claim 2, characterized in that: The circuit breaker is provided with at least one mating hook on the side near the docking plate, which is rotatably arranged about a second axis, and the second axis is parallel to the first axis; the mating hook has a groove and a guide surface, and the push rod can be located in the groove; When the push rod rotates about the first axis, the push rod can rotate into the groove along the guide surface.
9. The large-capacity power distribution device according to claim 4, characterized in that: In the first direction, the distance between the end of the locating pin near the docking plate and the circuit breaker is greater than the distance between the end of the connecting plug near the docking plate and the circuit breaker.
10. The large-capacity power distribution device according to claim 1, characterized in that: The circuit breaker has a manual opening and closing handle.