Lightning protection mechanism for power distribution box

Abstract

The utility model discloses a lightning protection mechanism for a power distribution box, and relates to the technical field of lightning protection mechanisms for power distribution boxes. The lightning protection mechanism for the power distribution box comprises a surge protector, a shell is arranged on the back of the surge protector, a fixing box is arranged on the back of the shell, and a pop-up assembly is arranged between the fixing box and the shell and used for popping up the shell by a certain distance. According to the lightning protection mechanism for the power distribution box, the structure that the fixing box is additionally arranged on the back of the shell of the surge protector is adopted, and when no vacancy exists on an installation track in the power distribution box, the surge protector can be conveniently fixed in the power distribution box through a bolt by a lock bolt on the fixing box; when the wiring port on the shell of the finally added surge protector is located right below the electric brake, the pop-up assembly is convenient to eject the shell for a certain distance, so that no obstacle exists above the wiring port on the shell, and a cable is convenient to be stably connected into the wiring port.

Description

TECHNICAL FIELD

[0001] The utility model relates to power distribution box lightning protection mechanism technical field, concretely is a lightning protection mechanism for power distribution box. BACKGROUND

[0002] With the continuous expansion of the scale of power system and the continuous improvement of voltage grade, the surge overvoltage generated by lightning, switch operation and the like is increasingly serious to electrical equipment. In order to ensure the safe and stable operation of the power system, the demand and application of surge protectors are more and more extensive.

[0003] Most of the existing surge protectors are installed in the power distribution box. When some old communities need to install surge protectors in the power distribution box, the situation that there is no space on the installation rail in the power distribution box will be encountered. It is time-consuming and laborious to replace a larger power distribution box and rearrange the wires. Meanwhile, the wiring port on the shell of the finally installed surge protector is directly below the electric gate, and it is inconvenient to connect the cable to the wiring port in the narrow space. In view of the deficiencies of the prior art, the utility model provides a lightning protection mechanism for a power distribution box to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a lightning protection mechanism for a power distribution box, which solves the problem that it is inconvenient to install the cable in the wiring port when the wiring port on the shell of the installed surge protector is directly below the electric gate.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a lightning protection mechanism for a power distribution box, comprising a surge protector, a shell is arranged at the back of the surge protector, a fixed box is arranged at the back of the shell, a pop-up assembly is arranged between the fixed box and the shell, and the pop-up assembly is used to pop the shell out by a distance;

[0006] The pop-up assembly comprises:

[0007] a cavity arranged in the fixed box;

[0008] a spring fixedly connected to one end of the cavity;

[0009] a connecting plate connected to the cavity, and the other end of the spring is fixedly connected to the back surface of the connecting plate;

[0010] a connecting column fixedly connected to the front surface of the connecting plate;

[0011] a fixed plate fixedly connected to one end of the connecting column away from the connecting plate, and the other surface of the fixed plate is fixedly connected to the back surface of the shell.

[0012] Preferably, a limiting assembly is arranged in the fixed box, and the limiting assembly is used to limit the connecting plate.

[0013] The limiting component includes:

[0014] The slot is located on the side of the fixed box;

[0015] A rotating shaft, which is rotatably connected inside a slot;

[0016] An adjustment handle is fixedly sleeved on a rotating shaft, and the adjustment handle is rotatably connected inside a slot.

[0017] The adjusting block is fixedly connected to the end of the adjusting handle near the fixed box.

[0018] Preferably, a slide rail is fixedly connected to the back of the connecting plate, a limit post is fixedly connected to the front of the connecting plate, and the adjusting block is slidably connected within the slide rail.

[0019] Preferably, a locking bolt is fixedly connected to the back of the fixed box, and a partition plate is fixedly connected inside the cavity, with the partition plate abutting against the limiting post.

[0020] Preferably, the housing is provided with a wiring port and a threaded hole.

[0021] Preferably, the connecting plate, the limiting post, and the slide rail are integrally formed.

[0022] This utility model discloses a lightning protection mechanism for power distribution boxes, which has the following beneficial effects: The lightning protection mechanism for power distribution boxes adopts a structure in which a fixing box is added to the back of the surge protector. When there is no space on the installation track inside the power distribution box, the locking bolt on the fixing box can easily fix the surge protector to the distribution box with bolts. When the wiring port on the housing of the last added surge protector is directly below the switch, the pop-out component can easily push the housing out a distance, so that there are no obstacles above the wiring port on the housing, making it easy to securely connect the cable to the wiring port. Attached Figure Description

[0023] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the pop-up component structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the limiting column structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0028] In the diagram: 1. Fixed box; 11. Locking bolt; 12. Divider plate; 2. Housing; 21. Wiring port; 22. Threaded hole; 3. Pop-out assembly; 31. Cavity; 32. Spring; 33. Connecting plate; 331. Limiting post; 332. Slide rail; 34. Connecting post; 35. Fixed plate; 4. Limiting assembly; 41. Groove; 42. Rotating shaft; 43. Adjusting handle; 44. Adjusting block; 5. Surge protector. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0030] Please see Figures 1-5 This invention provides a technical solution: a lightning protection mechanism for a power distribution box, including a surge protector 5. The surge protector 5 mainly utilizes the characteristics of nonlinear components for lightning protection. During normal operation, its internal nonlinear components (such as zinc oxide varistors) are in a high-resistance state, allowing only a very small current to pass through, without affecting the normal power supply of the circuit. When a lightning strike generates a surge overvoltage, the component instantly changes to a low-resistance state, providing a low-impedance path for the surge current, allowing it to quickly dissipate into the ground, thereby limiting the voltage amplitude across the equipment and protecting the equipment from damage caused by lightning overvoltage. After the lightning strike, the component returns to a high-resistance state, and the circuit returns to normal operation. The surge protector 5 has a housing 2 on its back, with a wiring port 21 and a threaded hole 22 on the housing 2 to facilitate cable connection. A fixing box 1 is provided on the back of the housing 2, which facilitates the installation of a pop-out component 3. A pop-out component 3 is provided between the fixing box 1 and the housing 2, which is used to pop the housing 2 out a certain distance.

[0031] Pop-up component 3 includes:

[0032] Cavity 31 is provided inside the fixed box 1, and the interior of cavity 31 facilitates the installation of spring 32;

[0033] Spring 32, one end of which is fixedly connected to the cavity 31, controls the resetting of the connecting plate 33;

[0034] A connecting plate 33 is connected inside the cavity 31, and the other end of the spring 32 is fixedly connected to the back of the connecting plate 33;

[0035] The connecting post 34 has one end fixedly connected to the front of the connecting plate 33. The connecting post 34 can pass through the partition plate 12 to connect the connecting plate 33 and the fixing plate 35.

[0036] The fixing plate 35 has one side fixedly connected to the end of the connecting post 34 away from the connecting plate 33, and the other side of the fixing plate 35 is fixedly connected to the back of the outer shell 2. The fixing plate 35 facilitates the movement of the outer shell 2.

[0037] The back of the connecting plate 33 is fixedly connected to a slide rail 332, which facilitates the sliding of the adjusting block 44. The front of the connecting plate 33 is fixedly connected to a limit post 331, which facilitates the limiting of the adjusting block 44. The adjusting block 44 is slidably connected to the slide rail 332, which facilitates the unfolding of the pop-out component 3.

[0038] A locking bolt 11 is fixedly connected to the back of the fixed box 1. The locking bolt 11 facilitates the fixed connection of the fixed box 1 to the distribution box. A partition plate 12 is fixedly connected inside the cavity 31. The partition plate 12 facilitates the limiting of the connecting plate 33. The partition plate 12 abuts against the limiting post 331.

[0039] The outer casing 2 is provided with a wiring port 21 and a threaded hole 22, which facilitates the connection of the cable to the wiring port 21, and then the cable is fixed by screwing it into the threaded hole 22.

[0040] The connecting plate 33, the limiting post 331 and the slide rail 332 are integrally formed, and the integrally formed structure is stable.

[0041] When installing the surge protector 5, if the wiring port 21 on the housing 2 is located directly below the power switch and it is inconvenient to connect the cable, the pop-out component 3 can be unfolded to facilitate the connection of the cable to the wiring port 21. The spring 32 resets the connecting plate 33, and the connecting plate 33 drives the connecting column 34 to move out of the cavity 31. The connecting column 34 drives the fixing plate 35 to move. The fixing plate 35 is fixedly connected to the housing 2. Therefore, the spring 32 causes the housing 2 to move outward a certain distance, so that the wiring port 21 on the housing 2 moves out of the position directly below the power switch, making it convenient for the wiring port 21 on the housing 2 to be connected to the cable.

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0043] Please see Figures 1-5This invention provides a technical solution: a lightning protection mechanism for a power distribution box, including a surge protector 5. The surge protector 5 mainly utilizes the characteristics of nonlinear components for lightning protection. During normal operation, its internal nonlinear components (such as zinc oxide varistors) are in a high-resistance state, allowing only a very small current to pass through, without affecting the normal power supply of the circuit. When a lightning strike generates a surge overvoltage, the component instantly changes to a low-resistance state, providing a low-impedance path for the surge current, allowing it to quickly dissipate into the ground, thereby limiting the voltage amplitude across the equipment and protecting the equipment from damage caused by lightning overvoltage. After the lightning strike, the component returns to a high-resistance state, and the circuit returns to normal operation. The surge protector 5 has a housing 2 on its back, with a wiring port 21 and a threaded hole 22 on the housing 2 to facilitate cable connection. A fixing box 1 is provided on the back of the housing 2, which facilitates the installation of a pop-out component 3. A pop-out component 3 is provided between the fixing box 1 and the housing 2, which is used to pop the housing 2 out a certain distance.

[0044] Pop-up component 3 includes:

[0045] Cavity 31 is provided inside the fixed box 1, and the interior of cavity 31 facilitates the installation of spring 32;

[0046] Spring 32, one end of which is fixedly connected to the cavity 31, controls the resetting of the connecting plate 33;

[0047] A connecting plate 33 is connected inside the cavity 31, and the other end of the spring 32 is fixedly connected to the back of the connecting plate 33;

[0048] The connecting post 34 has one end fixedly connected to the front of the connecting plate 33. The connecting post 34 can pass through the partition plate 12 to connect the connecting plate 33 and the fixing plate 35.

[0049] The fixing plate 35 has one side fixedly connected to the end of the connecting post 34 away from the connecting plate 33, and the other side of the fixing plate 35 is fixedly connected to the back of the outer shell 2. The fixing plate 35 facilitates the movement of the outer shell 2.

[0050] A limiting component 4 is provided inside the fixed box 1. The limiting component 4 is used to limit the connecting plate 33.

[0051] Limiting component 4 includes:

[0052] The slot 41 is located on the side of the fixed box 1;

[0053] A rotating shaft 42 is rotatably connected within a slot 41;

[0054] Adjustment handle 43 is fixedly sleeved on rotating shaft 42, and adjustment handle 43 is rotatably connected in slot 41;

[0055] Adjustment block 44 is fixedly connected to the end of adjustment handle 43 near fixed box 1.

[0056] The back of the connecting plate 33 is fixedly connected to a slide rail 332, which facilitates the sliding of the adjusting block 44. The front of the connecting plate 33 is fixedly connected to a limit post 331, which facilitates the limiting of the adjusting block 44. The adjusting block 44 is slidably connected to the slide rail 332, which facilitates the unfolding of the pop-out component 3.

[0057] A locking bolt 11 is fixedly connected to the back of the fixed box 1. The locking bolt 11 facilitates the fixed connection of the fixed box 1 to the distribution box. A partition plate 12 is fixedly connected inside the cavity 31. The partition plate 12 facilitates the limiting of the connecting plate 33. The partition plate 12 abuts against the limiting post 331.

[0058] The outer casing 2 is provided with a wiring port 21 and a threaded hole 22, which facilitates the connection of the cable to the wiring port 21, and then the cable is fixed by screwing it into the threaded hole 22.

[0059] The connecting plate 33, the limiting post 331 and the slide rail 332 are integrally formed, and the integrally formed structure is stable.

[0060] When it is necessary to unfold the pop-out component 3, first turn the adjustment handle 43 to drive the adjustment block 44 to rotate. When the adjustment block 44 abuts against the limit post 331, the adjustment block 44 corresponds to the empty position of the slide rail 332. Then the spring 32 unfolds the pop-out component 3. When the cable is connected, push the outer shell 2 into the cavity 31. When the adjustment block 44 slides out from the slide rail 332, the adjustment block 44 hangs down by its own weight. Then the adjustment block 44 abuts against the connecting plate 33 to limit the pop-out component 3.

Claims

1. A lightning protection mechanism for an electric power distribution box, comprising a surge protector (5), the back of the surge protector (5) being provided with a shell (2), characterized in that, The back of the shell (2) is provided with a fixing box (1), the fixing box (1) and the shell (2) are provided with a pop-up assembly (3), the pop-up assembly (3) is used for popping up the shell (2) by a distance; The pop-up assembly (3) comprises: A cavity (31) is arranged in the fixing box (1); A spring (32) is fixedly connected to one end of the cavity (31); A connecting plate (33) is connected to the cavity (31), and the other end of the spring (32) is fixedly connected to the back of the connecting plate (33); A connecting column (34) is fixedly connected to one end of the connecting plate (33); A fixed plate (35) is fixedly connected to one end of the connecting column (34) away from the connecting plate (33), and the other end of the fixed plate (35) is fixedly connected to the back of the shell (2).

2. The lightning protection mechanism for an electrical power distribution box according to claim 1, wherein The fixing box (1) is provided with a limiting assembly (4), and the limiting assembly (4) is used for limiting the connecting plate (33); The limiting assembly (4) comprises: A slot (41) is arranged on the side of the fixing box (1); A rotating shaft (42) is rotatably connected in the slot (41); An adjusting handle (43) is fixedly sleeved on the rotating shaft (42), and the adjusting handle (43) is rotatably connected in the slot (41); An adjusting block (44) is fixedly connected to one end of the adjusting handle (43) close to the fixing box (1).

3. The lightning protection mechanism for an electrical power distribution box according to claim 2, wherein The back of the connecting plate (33) is fixedly connected with a sliding rail (332), the front of the connecting plate (33) is fixedly connected with a limiting column (331), and the adjusting block (44) is slidably connected in the sliding rail (332).

4. The lightning protection mechanism for an electrical power distribution box according to claim 1, wherein The back of the fixing box (1) is fixedly connected with a lock bolt (11), the cavity (31) is fixedly connected with a partition plate (12), and the partition plate (12) abuts against the limiting column (331).

5. The lightning protection mechanism for an electrical power distribution box according to claim 1, wherein The shell (2) is provided with a wiring port (21) and a threaded hole (22).

6. The lightning protection mechanism for an electrical power distribution box according to claim 3, wherein The connecting plate (33), the limiting column (331) and the sliding rail (332) are integrally formed.

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