An incoming line cabinet that can be remotely disconnected

By introducing a linear motor-driven push ring mechanism into the incoming line cabinet, the plug and socket are automatically disconnected, solving the problems of time-consuming and safety hazards associated with manually unplugging the plug in the existing technology, and improving maintenance efficiency and safety.

CN224288892UActive Publication Date: 2026-05-26GUANGXI NANYA ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI NANYA ELECTRIC CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

After maintenance, the existing incoming line cabinet requires maintenance personnel to manually unplug it, which increases the time spent in a high-voltage environment, poses a safety hazard, and the high position of the plug makes the operation complicated and time-consuming.

Method used

A remotely disconnectable incoming line cabinet was designed. A linear motor drives a push ring to automatically separate the plug and socket. The push rod and push ring mechanism enable the plug to be automatically pulled out. Combined with the design of the bracket and push rod, the plug and socket are safely and quickly disconnected.

Benefits of technology

It enables automatic disconnection between the plug and socket, improving maintenance efficiency, reducing the time maintenance personnel spend in high-pressure environments, and enhancing safety and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an incoming line cabinet capable of remote disconnection. The key technical features include a cabinet body and a controller electrically connected to the cabinet body. The cabinet body is equipped with a socket and a socket. The socket includes a headstock that can be inserted into the socket and a tailstock positioned on the inner wall of the cabinet. The controller is connected to a plug that can be inserted into the headstock. It also includes a circuit breaker mechanism for pushing the plug away from the socket. The circuit breaker mechanism includes a push ring coaxial with the socket and used to push the plug, multiple push rods penetrating the cabinet body and connected to the push ring, a linear motor with an output shaft connected to the multiple push rods, and a bracket for supporting the linear motor and fixedly connected to the inner wall of the cabinet. The socket is located at an opening on the outer wall of the cabinet body with a groove coaxial with the socket and for the push ring to be accommodated. The push ring is driven by the linear motor to separate the plug from the socket, solving the safety hazard problem caused by frequent entry and exit of maintenance personnel into high-voltage environments in existing technologies.
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Description

Technical Field

[0001] This utility model relates to the field of incoming line cabinet technology, and more specifically to an incoming line cabinet that can be remotely disconnected. Background Technology

[0002] Incoming line cabinets are power distribution equipment used in power supply systems for power distribution, control, metering, and cable connection. They play a role in switching, controlling, or protecting power during power generation, transmission, distribution, energy conversion, and consumption. The outer wall of the incoming line cabinet is equipped with a control panel and multiple interfaces. High-voltage incoming line cabinets pose safety hazards due to their high voltage. If maintenance personnel repair the cabinet via the control panel, they will experience discomfort due to prolonged exposure to the high-voltage environment. Existing technology adds sockets to the incoming line cabinet and connects a portable controller to these sockets, allowing remote control and repair from a certain area. However, this technology still has drawbacks. After repairs, maintenance personnel must return to the cabinet to unplug the controller, increasing their time spent in the high-voltage environment and posing a safety hazard. Furthermore, the sockets in existing technology are positioned relatively high above the ground, making unplugging complex and time-consuming, indirectly increasing the time maintenance personnel spend in the high-voltage environment. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an incoming line cabinet that can quickly disconnect the plug from the socket and has high safety.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a remotely disconnectable incoming line cabinet, comprising a cabinet body and a controller electrically connected to the cabinet body. The cabinet body is provided with a socket and a socket. The socket includes a headstock that can be inserted into the socket and a tailstock positioned on the inner wall of the cabinet body. The controller is connected to a plug that can be inserted into the headstock. It also includes a circuit breaking mechanism for pushing the plug away from the socket. The circuit breaking mechanism includes a push ring coaxial with the socket and used to push the plug, multiple push rods penetrating the cabinet body and connected to the push ring, a linear motor with an output shaft connected to the multiple push rods, and a bracket for supporting the linear motor and fixedly connected to the inner wall of the cabinet body. The socket is provided with an annular groove coaxial with the socket and for the push ring to be accommodated at the opening on the outer wall of the cabinet body. The push ring is driven by the linear motor to separate the plug from the socket.

[0005] As a further improvement of this utility model, the number of push rods is two, and they are respectively placed on the upper and lower sides of the socket.

[0006] As a further improvement of this utility model, the bracket includes a horizontal plate for supporting a linear motor, a vertical plate that is connected to the inner wall of the cabinet and integrally formed with the horizontal plate, and a rib plate located below the horizontal plate and connected to the vertical plate.

[0007] As a further improvement of this utility model, the two sides of the horizontal plate are provided with side line holes that are offset from the vertical space where the push rod is located.

[0008] The beneficial effects of this utility model are as follows: the push ring driven by a linear motor separates the plug from the socket. Compared with the prior art, this design can realize the automatic disconnection of the plug and socket, eliminating the need for maintenance personnel to manually unplug the plug, improving maintenance efficiency, and effectively reducing the time that maintenance personnel spend in high-voltage environments and the frequency of entering and leaving high-voltage environments, thus improving human safety. Attached Figure Description

[0009] Figure 1 This is a front view of the cabinet and controller of this utility model when they are not electrically connected;

[0010] Figure 2 This is a front view of the cabinet and controller of this utility model when they are electrically connected;

[0011] Figure 3 This is a partial perspective view of the plug and socket in this utility model when they are not plugged in;

[0012] Figure 4 This is a partial perspective view of the plug and socket being connected in this utility model;

[0013] Figure 5 This is a partial perspective view of the plug being pushed away from the socket in this utility model;

[0014] Figure 6 This is a partial exploded view of the insertion port in this utility model;

[0015] Figure 7 for Figure 6 A stereoscopic view from another perspective;

[0016] Attached reference numerals: 1. Cabinet; 2. Controller; 3. Socket; 31. Header; 32. Tailstock; 4. Socket; 41. Ring groove; 5. Plug; 6. Circuit breaker; 61. Push ring; 62. Push rod; 63. Linear motor; 64. Bracket; 65. Horizontal plate; 66. Vertical plate; 67. Rib plate; 68. Side cable hole. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.

[0018] Reference Figures 1 to 7As shown, an incoming line cabinet capable of remote disconnection in this embodiment includes a cabinet body 1 and a controller 2 that can be electrically connected to the cabinet body 1. The cabinet body 1 is provided with a socket 3 and a socket 4. The socket 3 includes a head base 31 that can be inserted into the socket 4 and a tail base 32 positioned on the inner wall of the cabinet body 1. The controller 2 is connected to a plug 5 that can be inserted into the head base 31.

[0019] Based on the aforementioned prior art, the circuit breaker mechanism 6 includes a push ring 61, two push rods 62, a linear motor 63, and a bracket 64. An annular groove 41 coaxial with the socket 4 and connected to the inner cavity of the socket 4 is machined on the outer wall of the cabinet 1. The outer contour dimension of the end face of the plug 5 facing the head seat 31 is larger than the inner diameter of the socket 4. Two through holes distributed vertically are machined on the inner wall of the socket 4. Both ends of the two through holes extend to the inner wall of the cabinet 1 and the bottom of the annular groove 41, respectively. One end of each of the two push rods 62 is welded to the same end face of the push ring 61. The two push rods 62 are centrally symmetrical with respect to the center of the push ring 61. The bracket 64 includes a horizontal plate 65 and a vertical plate 66 that are perpendicular to each other.

[0020] During assembly, the headstock 31 is inserted into the socket 4, and the tailstock 32 is attached to the inner wall of the cabinet 1 and positioned on the inner wall of the cabinet 1 using bolts. The two through holes are located on the upper and lower sides of the tailstock 32 respectively. Then, the vertical plate 66 is attached to the inner wall of the cabinet 1 and fixed with bolts. The horizontal plate 65 is parallel to the horizontal plane and located directly below the tailstock 32. Then, the two push rods 62 are moved from the outside of the cabinet 1 to the inside of the cabinet 1 and the two push rods 62 pass through the two through holes respectively until the push ring 61 moves into the ring groove 41. The linear motor 63 is placed on the horizontal plate 65 and moved so that the connector on the output shaft of the linear motor 63 can be connected to the ends of the two push rods 62. After the connector is fixedly connected to the two push rods 62, the linear motor 63 is positioned on the horizontal plate 65 with bolts.

[0021] In the initial state, the push ring 61 is located within the ring groove 41, and the end face of the push ring 61 facing outwards from the cabinet 1 is flush with the outer wall of the cabinet 1. The wire connected to the tailstock 32 extends downwards in a bent manner and touches the side of the horizontal plate 65. Both push rods 62 do not interfere with the tailstock 32 or the wire connected to the tailstock 32. During maintenance, the maintenance personnel approach the cabinet 1 and insert the external plug 5 of the mobile controller into the headstock 31. The edge of the plug 5 facing outwards from the cabinet 1 is in contact with the end face of the push ring 61. Then, the maintenance personnel move away from the cabinet 1 and move to a safe area. After the control or maintenance of cabinet 1 is completed via the mobile controller, the maintenance personnel input a disconnect command to cabinet 1. The processor inside cabinet 1 sends the corresponding command to the linear motor 63. The linear motor 63 drives the two push rods 62 to move linearly a certain distance. The push ring 61 pushes the plug 5 under the action of the push rods 62. The plug 5 gradually exits the head seat 31 and eventually falls off the head seat 31. Then the linear motor 63 drives the two push rods 62 and the push ring 61 to return to the initial state. The mobile controller is disconnected from cabinet 1. The maintenance personnel pull the plug 5 to a safe area and retrieve it by pulling the traction line.

[0022] Compared with existing technologies, this design can automatically disconnect the plug 5 from the socket 3, eliminating the need for maintenance personnel to manually unplug the plug 5, thus improving maintenance efficiency. At the same time, it effectively reduces the time maintenance personnel spend in high-voltage environments and the frequency of entering and exiting high-voltage environments, thereby improving human safety.

[0023] As one specific implementation of the improvement, because the bracket 64 has a simple structure, the linear motor 63 is positioned at the end of the horizontal plate 65 away from the inner wall of the cabinet 1 for a long time. This causes the horizontal plate 65 to deform and bend downwards, easily resulting in the output shaft direction of the linear motor 63 being inconsistent with the direction of movement of the push rod 62, affecting the transmission efficiency of the linear motor 63. To solve the aforementioned problem, refer to... Figure 7 As shown, a rib plate 67 connected to the vertical plate 66 is integrally formed below the horizontal plate 65. This design can effectively improve the bending resistance of the horizontal plate 65 and ensure the smooth movement of the linear motor 63 driving the push rod 62 and the push ring 61 as a whole.

[0024] As one specific implementation of the improvement, because the width of the horizontal plate 65 is relatively large, the degree of bending of the wire connected to the tailstock 32 is relatively large, which can easily lead to the tailstock 32 breaking from the wire. To solve the aforementioned problem, refer to Figure 7As shown, without affecting the structural strength of the horizontal plate 65, side wire holes 68 are machined on both sides of the horizontal plate 65, which are offset from the vertical space where the push rod 62 is located. The wire connected to the tailstock 32 is partially accommodated in the side wire holes 68 and abuts against the inner wall of the side wire holes 68. This design can effectively reduce the bending degree of the wire connected to the tailstock 32 in the width direction of the horizontal plate 65, and reduce the deformation of the wire, thereby reducing the stress at the connection between the wire and the tailstock 32 and ensuring the connection stability between the wire and the tailstock 32.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A remotely disconnectable incoming line cabinet, comprising a cabinet body (1) and a controller (2) electrically connected to the cabinet body (1), wherein the cabinet body (1) is provided with a socket (3) and a socket (4), the socket (3) comprising a headstock (31) that can be inserted into the socket (4) and a tailstock (32) positioned on the inner wall of the cabinet body (1), and the controller (2) is connected to a plug (5) that can be inserted into the headstock (31), characterized in that: It also includes a circuit breaker mechanism (6) for pushing the plug (5) away from the socket (3). The circuit breaker mechanism (6) includes a push ring (61) coaxial with the socket (4) and used to push the plug (5), multiple push rods (62) penetrating the cabinet (1) and connected to the push ring (61), a linear motor (63) with an output shaft connected to the multiple push rods (62), and a bracket (64) for carrying the linear motor (63) and fixedly connected to the inner wall of the cabinet (1). The socket (4) is provided with an annular groove (41) coaxial with the socket (4) and for the push ring (61) to be accommodated at the opening on the outer wall of the cabinet (1). The push ring (61) is driven by the linear motor (63) to separate the plug (5) from the socket (3).

2. The incoming line cabinet capable of remote disconnection according to claim 1, characterized in that: The number of push rods (62) is two, and they are respectively placed on the upper and lower sides of the socket (3).

3. A remotely disconnectable incoming line cabinet according to claim 1 or 2, characterized in that: The bracket (64) includes a horizontal plate (65) for supporting the linear motor (63), a vertical plate (66) connected to the inner wall of the cabinet (1) and integrally formed with the horizontal plate (65), and a rib plate (67) located below the horizontal plate (65) and connected to the vertical plate (66).

4. The incoming line cabinet capable of remote disconnection according to claim 3, characterized in that: The horizontal plate (65) has side holes (68) on both sides that are offset from the vertical space where the push rod (62) is located.