Outdoor cable branch box

Abstract

The utility model discloses an outdoor cable branch box which comprises a box body, a main switch, a shunt controller and circuit breakers which are electrically connected are sequentially arranged in the box body, the shunt controller is provided with a plurality of output ends, the circuit breakers are in one-to-one correspondence with the output ends of the shunt controller, and the circuit breakers are connected with the output ends of the shunt controller through spring needles. Two vertical track frames are arranged in the box body, a horizontal limiting plate with a through hole is arranged at the top of each track frame, a mounting plate is vertically arranged on each track frame in a sliding mode, a circuit breaker is vertically arranged on each mounting plate in a sliding mode, and a first limiting device for limiting each mounting plate is arranged between each mounting plate and the corresponding limiting plate. And a second limiting device for limiting the circuit breaker is arranged between the circuit breaker and the mounting plate. The circuit breaker is arranged to be of a double-sliding structure and is matched with a connecting structure of a spring needle, the circuit breaker is arranged on the mounting plate during mounting, then the mounting plate is pushed upwards, mounting can be completed, the mounting plate is jacked upwards and the first limiting device is loosened if all the circuit breaker needs to be dismounted during dismounting, and the circuit breaker is mounted. And if the single circuit breaker needs to be disassembled, the single circuit breaker is pushed upwards, and the second limiting device is loosened, so that the disassembly and assembly efficiency is greatly improved, and the operation and maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to cable branch boxes, specifically to outdoor cable branch boxes. Background Technology

[0002] The main function of a cable distribution box is to branch a main cable into multiple branch cables, thereby enabling power supply to multiple directions or multiple users. For example, in an urban power distribution network, the main cable from the substation can supply power to different residential areas, commercial areas, or industrial areas through a cable distribution box, meeting the power needs of different areas.

[0003] Cable distribution boxes typically use current and other monitoring methods to intelligently control the circuit during use. However, due to environmental variability and the increasing usage time, relying solely on monitoring to maintain the normal operation of cable distribution boxes is limited, often leading to situations where maintenance is required.

[0004] Because circuit breakers need to be automatically disconnected frequently to protect the circuit during use, they are also very easy to be damaged, especially in environments such as thunderstorms. Therefore, circuit breakers are the most frequently repaired or replaced electrical components during operation and maintenance. However, existing circuit breakers are generally fixed in the box, and their circuits are connected by power cords. When replacing or repairing them, it is necessary to disassemble the power cord and the circuit breaker, which seriously affects the efficiency of operation and maintenance. Utility Model Content

[0005] In view of the shortcomings of existing technologies such as circuit breakers and other fixed installation structures, which result in low operation and maintenance efficiency, this utility model provides an outdoor cable branch box.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] The outdoor cable distribution box includes a box body. Inside the box, a main switch, a branch controller, and circuit breakers are arranged in sequence, all electrically connected. The branch controller has several output terminals, and there are several circuit breakers, each corresponding to one of the output terminals of the branch controller. A spring pin connects the two circuit breakers. The box contains two vertical rail frames. The top of each rail frame has a horizontal limiting plate with through holes. A mounting plate slides vertically along the rail frame, and the circuit breakers slide vertically on the mounting plate. A first limiting device limits the mounting plate's movement between the mounting plate and the limiting plate, and a second limiting device limits the circuit breakers' movement between the circuit breakers and the mounting plate. This design uses a double-sliding structure for the circuit breakers, combined with a spring pin connection. During installation, the circuit breakers are placed on the mounting plate, and then the mounting plate is pushed up to complete the installation. For disassembly, if complete disassembly is required, the mounting plate is pushed up and the first limiting device is released; if disassembly of a single circuit breaker is required, the single circuit breaker is pushed up and the second limiting device is released. This significantly improves disassembly and installation efficiency, enhancing maintenance efficiency.

[0008] Preferably, the through hole is located directly below the output terminal of the branch controller, and the spring pin passes through the through hole with both ends of the spring pin electrically connected to the output terminals of the circuit breaker and the branch controller.

[0009] Preferably, both the output terminal of the branch controller and the input terminal of the circuit breaker are provided with sockets for inserting spring pins.

[0010] Preferably, the spring needle is made of conductive material and includes an outer needle body and an inner needle body. The outer needle body is provided with a sliding groove, and one end of the inner needle body is slidably disposed in the sliding groove and a spring is disposed in the sliding groove. The other end of the outer needle body is located outside the sliding groove.

[0011] Preferably, the circuit breaker and the branch controller are electrically connected via two spring pins; the metal at both ends of the spring pins is for conduction, and an insulating coating is provided in the middle of their sidewalls. After installation, the two ends of the spring pins are located inside, while the exposed middle end is provided with an insulating coating to prevent leakage.

[0012] Preferably, the circuit breaker output is equipped with a power supply line, on which a Rogowski coil current transformer connected to the branch controller is mounted. This coil is used to detect the circuit, and when an abnormal current occurs in the circuit, the branch controller cuts off the power supply.

[0013] Preferably, the track frame has a flat-bottomed U-shaped structure with its edges extending to both sides to form two edges. The back of the mounting plate is provided with a T-shaped groove, and the two edges are located in the T-shaped groove so that the mounting plate can slide vertically along the track frame.

[0014] Preferably, the mounting plate has an inverted T-shaped groove on the front, and the circuit breaker has a slider that matches the shape of the inverted T-shaped groove. The circuit breaker slides vertically by the cooperation of the slider and the inverted T-shaped groove.

[0015] Preferably, the first limiting structure includes a first hanging ring disposed at the edge of the through hole and a first hook disposed on the top of the mounting plate. The first hook is a flexible metal hook, and the first hook is hung on the first hanging ring to vertically limit the mounting plate.

[0016] Preferably, the second limiting structure includes a second hook that is elastic and disposed on the circuit breaker and a second hanging ring disposed on the mounting plate, wherein the second hook is hung on the second hanging ring to vertically limit the circuit breaker.

[0017] Compared with the prior art, the advantages of this utility model are as follows: This utility model sets the circuit breaker as a double sliding structure and uses a spring pin connection structure. During installation, the circuit breaker is placed on the mounting plate, and then the mounting plate is pushed up to complete the installation. During disassembly, if all circuit breakers need to be disassembled, the mounting plate is pushed up and the first limiting device is released. If a single circuit breaker needs to be disassembled, the single circuit breaker is pushed up and the second limiting device is released. The efficiency of disassembly and installation is greatly improved, thus improving the efficiency of operation and maintenance. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is the front view of this application;

[0020] Figure 2 This is the front view of this application;

[0021] Figure 3 This is a perspective view of the present application;

[0022] Figure 4 This is a perspective view of the present application;

[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0024] In the diagram: 01, housing; 011, track frame; 012, limit plate; 013, first hanging ring; 014, first hook; 015, second hanging ring; 016, second hook; 02, main switch; 03, circuit breaker; 04, branch controller; 05, spring pin. Detailed Implementation

[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0026] Example:

[0027] The photovoltaic grid-connected box with fire protection function in this embodiment, such as Figure 1-5As shown, the device includes a housing 01. Inside the housing 01, a main switch 02, a branch controller 04, and a circuit breaker 03 are arranged in sequence and electrically connected. The branch controller 04 has several output terminals, and the circuit breaker 03 has several terminals, each corresponding to one of the output terminals of the branch controller 04. The circuit between the two terminals is connected by a spring pin 05. Inside the housing 01, there are two vertical track frames 011. The top of the track frame 011 is provided with a horizontal limiting plate 012 with a through hole. A mounting plate is vertically slidably mounted on the track frame 011. The circuit breaker 03 is vertically slidably mounted on the mounting plate. A first limiting device for limiting the mounting plate is provided between the mounting plate and the limiting plate 012. A second limiting device for limiting the circuit breaker 03 is provided between the circuit breaker 03 and the mounting plate. This solution sets the circuit breaker 03 as a double sliding structure and uses a spring pin 05 for connection. During installation, the circuit breaker 03 is placed on the mounting plate, and then the mounting plate is pushed up to complete the installation. During disassembly, if all circuit breakers need to be disassembled, the mounting plate is pushed up and the first limit device is released. If a single circuit breaker 03 needs to be disassembled, the single circuit breaker 03 is pushed up and the second limit device is released. The efficiency of disassembly and installation is greatly improved, thus improving the efficiency of operation and maintenance.

[0028] Preferably, the through hole is located directly below the output terminal of the branch controller 04, and the spring pin 05 passes through the through hole and the two ends of the spring pin 05 are electrically connected to the output terminals of the circuit breaker 03 and the branch controller 04.

[0029] Preferably, the output terminal of the branch controller 04 and the input terminal of the circuit breaker 03 are both provided with a socket for inserting a spring pin 05.

[0030] Preferably, the spring needle 05 is made of conductive material and includes an outer needle body and an inner needle body. The outer needle body is provided with a sliding groove, and one end of the inner needle body is slidably disposed in the sliding groove and a spring is provided in the sliding groove. The other end of the outer needle body is located outside the sliding groove.

[0031] Preferably, the output terminals of the circuit breaker 03 and the branch controller 04 are electrically connected by two spring pins 05; the metal at both ends of the spring pins 05 is used for conduction, and an insulating coating is provided in the middle of their sidewalls. After installation, the two ends of the spring pins 05 are located inside, while the exposed middle end is provided with an insulating coating to prevent leakage.

[0032] Preferably, the output terminal of circuit breaker 03 is equipped with a power supply line, and a Rogowski coil current transformer connected to the branch controller 04 is mounted on the power supply line. This coil is used to detect the circuit, and when an abnormal current occurs in the circuit, the branch controller 04 controls the power supply to be cut off.

[0033] Preferably, the track frame 011 has a flat-bottomed U-shaped structure with its edges extending to both sides to form two edges. The back of the mounting plate is provided with a T-shaped groove, and the two edges are located in the T-shaped groove so that the mounting plate can slide vertically along the track frame 011.

[0034] Preferably, the mounting plate has an inverted T-shaped groove on the front, and the circuit breaker 03 has a slider that matches the shape of the inverted T-shaped groove. The circuit breaker 03 slides vertically by the cooperation of the slider and the inverted T-shaped groove.

[0035] Preferably, the first limiting structure includes a first hanging ring 013 disposed at the edge of the through hole and a first hook 014 disposed on the top of the mounting plate. The first hook 014 is a flexible metal hook, and the first hook 014 is hung on the first hanging ring 013 to vertically limit the mounting plate.

[0036] Preferably, the second limiting structure includes a second hook 016 that is elastic and disposed on the circuit breaker 03 and a second hanging ring 015 disposed on the mounting plate. The second hook 016 is hung on the second hanging ring 015 to vertically limit the circuit breaker 03.

[0037] Because of the spring pin 05, which has vertical telescopic capability, a gap can be reserved when setting the vertical sliding structure for raising and taking out the first hook 014; at the same time, the elastic force of the spring pin 05 can also push the circuit breaker 03 downward, so that the second hook 016 is firmly hung on the second hanging ring 015.

[0038] The outdoor cable branch box provided by this utility model has been described above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An outdoor cable branch box, comprising a box body, wherein a main switch, a branch controller, and a circuit breaker connected electrically are sequentially arranged inside the box body, characterized in that, The branch controller has several output terminals, and the circuit breaker has several output terminals, each corresponding to one of the output terminals of the branch controller. The circuit between the two is connected by a spring pin. The housing is equipped with two vertical rail frames. The top of the rail frame is equipped with a horizontal limiting plate with a through hole. A mounting plate is vertically slidable on the rail frame. The circuit breaker is vertically slidable on the mounting plate. A first limiting device is provided between the mounting plate and the limiting plate to limit the movement of the mounting plate. A second limiting device is provided between the circuit breaker and the mounting plate to limit the movement of the circuit breaker.

2. The outdoor cable branch box according to claim 1, characterized in that, The through hole is located directly below the output terminal of the branch controller. The spring pin passes through the through hole and its two ends are electrically connected to the output terminals of the circuit breaker and the branch controller.

3. The outdoor cable branch box according to claim 2, characterized in that, Both the output terminal of the branch controller and the input terminal of the circuit breaker are equipped with sockets for inserting spring pins.

4. The outdoor cable branch box according to claim 3, characterized in that, The spring needle is made of conductive material and includes an outer needle body and an inner needle body. The outer needle body is provided with a sliding groove, and one end of the inner needle body is slidably disposed in the sliding groove and a spring is disposed in the sliding groove. The other end of the outer needle body is located outside the sliding groove.

5. The outdoor cable branch box according to claim 4, characterized in that, The output terminals of the circuit breaker and the branch controller are electrically connected by two spring pins; the metal at both ends of the spring pins is used for conduction, and an insulating coating is provided in the middle of its side wall.

6. The outdoor cable branch box according to claim 1, characterized in that, The circuit breaker output terminal is equipped with a power line, and a Rogowski coil current transformer connected to the branch controller is mounted on the power line.

7. The outdoor cable branch box according to claim 1, characterized in that, The track frame has a flat-bottomed U-shaped structure with its edges extending to both sides to form two edges. The back of the mounting plate is provided with a T-shaped groove, and the two edges are located in the T-shaped groove, allowing the mounting plate to slide vertically along the track frame.

8. The outdoor cable branch box according to claim 7, characterized in that, The mounting plate has an inverted T-shaped groove on the front, and the circuit breaker has a slider that matches the shape of the inverted T-shaped groove. The circuit breaker slides vertically by the cooperation of the slider and the inverted T-shaped groove.

9. The outdoor cable branch box according to claim 7, characterized in that, The first limiting structure includes a first hanging ring disposed at the edge of the through hole and a first hook disposed on the top of the mounting plate. The first hook is a flexible metal hook, which hangs on the first hanging ring to vertically limit the mounting plate.

10. The outdoor cable branch box according to claim 8, characterized in that, The second limiting structure includes a second hook that is elastic and mounted on the circuit breaker and a second hanging ring that is mounted on the mounting plate. The second hook is hung on the second hanging ring to vertically limit the circuit breaker.

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