A power distribution cabinet anti-electric shock protection device

By installing insulating boards on the busbars and securing them with hooks and elastic clips on the brackets, the risk of electric shock caused by exposed busbar connection terminals is eliminated, achieving improved safety without affecting the normal use of the load cabinet.

CN224318917UActive Publication Date: 2026-06-02CHINA YANGTZE POWER

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA YANGTZE POWER
Filing Date
2025-07-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In load distribution cabinets, exposed busbar connection terminals pose a significant risk of electric shock. Existing technologies reduce this risk by disconnecting the entire load cabinet's switch, but this affects normal operation.

Method used

Design a device to prevent electric shock to a power distribution cabinet. This device involves installing an insulating plate on the busbar to cover the connection terminals. The insulating plate is then fixed in place using hooks and elastic clips on a bracket, ensuring that the connection terminals are covered.

Benefits of technology

This improves the safety of connecting load cables without shutting down the entire load cabinet, avoids the risk of electric shock caused by exposed connection terminals, and does not affect the normal use of the load cabinet.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224318917U_ABST
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Abstract

The utility model discloses a kind of power distribution cabinet electric shock prevention protection devices, including support and insulating plate, the support includes first plate body, extension and second plate body and insulating plate, the lower end of extension is connected with the one end of first plate body, the upper end of extension is connected with the one end of second plate body, the other end of first plate body and second plate body respectively stretch out to mutually far direction, the downside of first plate body is provided with hook and elastic card, when using, first plate body is installed to busbar support by hook and elastic card, insulating plate is used to install to second plate body. By support, insulating plate is installed on each group of busbar, insulating plate covers the connecting terminal of busbar, to protect exposed connecting terminal, improve the security when not closing entire load cabinet access load cable.
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Description

Technical Field

[0001] This utility model relates to the field of electric shock protection technology for power distribution cabinets, and in particular to an electric shock protection device for power distribution cabinets. Background Technology

[0002] In some load distribution cabinets, multiple busbars are installed on the busbar supports. Although the busbars are fitted with insulating heat-shrink tubing, the connection terminals are exposed because they need to be connected to external circuits. When connecting a load cable, the possibility of electric shock is high without disconnecting nearby switches, posing a significant safety hazard. To ensure safety, all switches in the entire load cabinet are often disconnected when connecting load cables. While this improves safety, it expands the power outage area and affects the normal operation of related loads. To solve this problem, and considering the actual site conditions, this application presents a distribution cabinet electric shock protection device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a power distribution cabinet anti-electric shock protection device, which uses a bracket to install an insulating plate on each group of busbars. The insulating plate covers the connection terminals of the busbars, thereby protecting the exposed connection terminals and improving safety when the load cable is connected to the entire load cabinet without shutting off the entire load cabinet.

[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: A power distribution cabinet anti-electric shock protection device includes a bracket and an insulating plate. The bracket includes a first plate, an extension, a second plate, and an insulating plate. The lower end of the extension is connected to one end of the first plate, and the upper end of the extension is connected to one end of the second plate. The other ends of the first plate and the second plate extend in opposite directions. The lower side of the first plate is provided with a hook and an elastic clip. In use, the first plate is installed on the busbar bracket through the hook and the elastic clip, and the insulating plate is used to install on the second plate.

[0005] An elastic clip is provided on the lower side of the first plate away from the extension, and a hook is provided on the bottom side of the first plate near the extension.

[0006] The hooks and elastic clips are welded to the bottom of the first plate or integrally formed with the first plate.

[0007] The first plate has an elastically extendable portion located between the hook and the elastic clip.

[0008] The second plate has a slot on its upper side, and the insulating plate is inserted into the slot.

[0009] A limiting part is provided on the side of the second plate away from the extension. A first limiting groove is provided on the side of the limiting part facing the extension. A retaining plate is installed on the upper side of the end of the second plate near the extension. A second limiting groove is provided on the side of the retaining plate facing the limiting part. The retaining groove is formed between the first limiting groove and the second limiting groove. A first mounting hole is provided on the retaining plate. A first threaded hole is provided on the second plate. The threaded end of the first screw passes through the first mounting hole and is screwed into the first threaded hole.

[0010] The second plate has a first guide clip on each side near the extension end, and a first guide groove is formed between the two first guide clips. The clip is slidably inserted into the first guide groove, and the first mounting hole is an elongated hole.

[0011] The extension is a third plate connected between the first plate and the second plate.

[0012] The extension includes a first extension plate and a second extension plate. The first extension plate is connected to the upper side of the first plate, and the second extension plate is connected to the lower side of the second plate. A second threaded hole is provided on the first extension plate, and a second mounting hole is provided on the second extension plate. The threaded end of the first screw passes through the second mounting hole and is screwed into the second threaded hole.

[0013] The first extension plate has a second guide clip on each side, and a second guide groove is formed between the two second guide clips. The second extension plate slides into the second guide groove, and the second mounting hole is an elongated hole.

[0014] Compared with the prior art, the present utility model adopting the above technical solution has the following outstanding features:

[0015] 1. The first plate of this utility model is installed on the busbar support using hooks and elastic clips, and the insulating plate is installed on the second plate. Insulating plates are installed on each group of busbars via the support, covering the connection terminals of the busbars, thereby protecting the exposed connection terminals and improving safety when the load cable is connected without shutting down the entire load cabinet.

[0016] 2. The first plate of this utility model has an elastic extension portion located between the hook and the elastic clip. When the elastic clip is inserted into the busbar support, the extension portion can elastically extend, thereby facilitating the insertion of the elastic clip into the busbar support.

[0017] 3. The second plate of this utility model is provided with a slot on the upper side, and the insulating plate is installed in the slot, making it more convenient to install the insulating plate.

[0018] The second plate of this utility model has first guide clips on both sides near the extension end, and a first guide groove is formed between the two first guide clips. The clip plate is slidably inserted into the first guide groove. The first mounting hole is an elongated hole, which facilitates the adjustment of the width of the clip groove to accommodate insulating plates of different widths.

[0019] 5. The first extension plate of this utility model is provided with second guide clips on both sides, and a second guide groove is formed between the two second guide clips. The second extension plate is slidably inserted into the second guide groove. The second mounting hole is an elongated hole, so that the height of the insulating plate can be adjusted according to the height requirements of the connection terminal. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a three-dimensional structural diagram of the bracket of this utility model.

[0023] Figure 3 This is a three-dimensional structural diagram of the first plate of this utility model.

[0024] Figure 4 This is a schematic diagram of the main structure of the first plate of this utility model.

[0025] Figure 5 This is a three-dimensional structural diagram of the second plate of this utility model.

[0026] Figure 6 This is a three-dimensional structural diagram of the card plate of this utility model.

[0027] Figure 7 This is a three-dimensional structural diagram of the present invention installed on the busbar support.

[0028] Figure 8 This is a front view schematic diagram of the present invention installed on the busbar support. The busbar is not shown in the figure.

[0029] Figure label:

[0030] Busbar support 1, busbar 2, connecting terminal 3;

[0031] First plate 10, hook 11, elastic clip 12, extension part 13, first extension plate 14, second guide clip 15, second guide groove 151, second threaded hole 16;

[0032] Extension 20;

[0033] Second plate 30, slot 301, limiting part 31, first limiting groove 311, second extension plate 32, second mounting hole 321, first guide clip 33, first guide groove 331, first threaded hole 34;

[0034] Card plate 40, first mounting hole 41, second limiting groove 42;

[0035] The second screw is 50mm, and the first screw is 60mm.

[0036] Insulating board 70. Detailed Implementation

[0037] 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.

[0038] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0039] Example 1:

[0040] See Figure 1-8 An electric shock protection device for a distribution cabinet includes a bracket and an insulating plate 70. The bracket includes a first plate 10, an extension 20, a second plate 30, and the insulating plate 70. The lower end of the extension 20 is connected to one end of the first plate 10, and the upper end of the extension 20 is connected to one end of the second plate 30. The other ends of the first plate 10 and the second plate 30 extend in opposite directions. A hook 11 and an elastic clip 12 are provided on the lower side of the first plate 10. In use, the first plate 10 is installed on the busbar bracket 1 using the hook 11 and the elastic clip 12, and the insulating plate 70 is installed on the second plate 30. By installing the insulating plate 70 on each group of busbars 2 through the bracket, the insulating plate 70 covers the connection terminals 3 of the busbars 2, thereby protecting the exposed connection terminals 3 and improving safety when the load cable is connected to the entire load cabinet without shutting off the entire load cabinet.

[0041] In this embodiment, the bracket has a "Z" shaped structure. The first plate 10 at the lower end of the bracket is fastened to the busbar bracket 1 by hooks 11 and elastic clips 12. The second plate 30 at the upper end of the bracket is used to install the insulating plate 70. The insulating plate 70 can be connected by bolts or glued.

[0042] In this embodiment, see Figure 3 , 4 An elastic clip 12 is provided on the lower side of the end of the first plate 10 away from the extension 20, and a hook 11 is provided on the bottom side of the first plate 10 near the extension 20. Figure 7 , 8 When in use, first hook one side of the hook 11 onto one side of the busbar support 1, then press down on one end of the elastic clip 12. Since the first plate 10 has a certain toughness, the elastic clip 12 can be inserted into the other side of the busbar support 1, thereby quickly installing the first plate 10 onto the busbar support 1.

[0043] During manufacturing, the hook 11 and the elastic clip 12 are welded to the bottom of the first plate 10, or integrally formed with the first plate 10. In this embodiment, see... Figure 3 The first plate 10 is made of sheet metal, and the hook 11 and the elastic clip 12 are formed by stamping and bending processes, that is, the hook 11 and the elastic clip 12 are integrally formed with the first plate 10. Alternatively, they can be integrally formed by injection molding.

[0044] The insulating board 70 can be made of bakelite or acrylic.

[0045] Example 2:

[0046] When inserting the elastic clip 12 into the busbar bracket 1, the deformation of the elastic clip 12 is entirely located at the connection point with the first plate 10, making it relatively difficult to insert the elastic clip 12 into the busbar bracket 1. Therefore, see... Figure 3 An elastically extendable portion 13 is provided on the first plate 10 between the hook 11 and the elastic clip 12. The extension portion 13 can be "V" shaped or "W" shaped. When the elastic clip 12 is inserted into the busbar support 1, the extension portion 13 can elastically extend, thereby facilitating the insertion of the elastic clip 12 into the busbar support 1.

[0047] Example 3:

[0048] Based on Embodiment 1 or Embodiment 2, a slot 301 is provided on the upper side of the second plate 30, and the insulating plate 70 is snapped into the slot 301, making it more convenient to install the insulating plate 70. The slot 301 can be formed by a structure of hook 11 and elastic clip 12.

[0049] Specifically, see Figure 1 , 25, 6, A limiting part 31 is provided on the side of the second plate 30 away from the extension 20. A first limiting groove 311 is provided on the side of the limiting part 31 facing the extension 20. A retaining plate 40 is installed on the upper side of the end of the second plate 30 near the extension 20. A second limiting groove 42 is provided on the side of the retaining plate 40 facing the limiting part 31. A retaining groove 301 is formed between the first limiting groove 311 and the second limiting groove 42.

[0050] The card plate 40 is provided with a first mounting hole 41, and the second plate 30 is provided with a first threaded hole 34. The threaded end of the first screw 60 passes through the first mounting hole 41 and is screwed into the first threaded hole 34 to install and fix the card plate 40 onto the second plate 30.

[0051] Further, see Figure 2 , 5 6. The second plate 30 is provided with first guide clips 33 on both sides near the end of the extension 20. A first guide groove 331 is formed between the two first guide clips 33. The card plate 40 is slidably inserted into the first guide groove 331. The first mounting hole 41 is an elongated hole, which facilitates the adjustment of the width of the card groove 301 to accommodate insulating plates 70 of different widths.

[0052] Example 4:

[0053] Based on Embodiment 1, Embodiment 2, or Embodiment 3, in this embodiment, the extension 20 is a third plate connecting the first plate 10 and the second plate 30. With this structure, the bracket can be a bent integral or an injection-molded integral, and the distance between the first plate 10 and the second plate 30 is fixed.

[0054] Example 5:

[0055] Based on Example 1, Example 2, or Example 3, in this example, see... Figure 2 , 3 5. The extension portion 20 includes a first extension plate 14 and a second extension plate 32. The first extension plate 14 is connected to the upper side of the first plate 10, and the second extension plate 32 is connected to the lower side of the second plate 30. The first extension plate 14 is provided with a second threaded hole 16, and the second extension plate 32 is provided with a second mounting hole 321. The threaded end of the second screw 50 passes through the second mounting hole 321 and is screwed into the second threaded hole 16. Through the above structure, a detachable connection between the first plate 10 and the second plate 30 is achieved.

[0056] Furthermore, the first extension plate 14 is provided with second guide clips 15 on both sides, and a second guide groove 151 is formed between the two second guide clips 15. The second extension plate 32 is slidably inserted into the second guide groove 151. The second mounting hole 321 is an elongated hole, so that the height of the insulating plate 70 can be adjusted according to the height requirements of the connecting terminal 3.

[0057] The working principle or process of this utility model:

[0058] When using, please refer to Figure 7 , 8 Install a bracket on each side of each busbar 2. When installing the bracket, first hook one side of the hook 11 onto one side of the busbar bracket 1, and then press down on one end of the elastic clip 12. Since the first plate 10 has a certain toughness, the elastic clip 12 can be inserted into the other side of the busbar bracket 1, thereby quickly installing the first plate 10 onto the busbar bracket 1.

[0059] Afterwards, by loosening the second screw 50, the second plate 30 is moved up and down to a suitable height, and after the upper sides of the two sides of the second plate 30 are roughly on the same plane, the second screw 50 is tightened.

[0060] Loosen the first screw 60 to increase the width of the slot 301, install both ends of the insulating plate 70 into the slots 301 of the two side brackets respectively, press the plate 40 tightly against the insulating plate 70, and then tighten the first screw 60.

[0061] Insulating plate 70 covers the connection terminal 3 of busbar 2, thereby protecting the exposed connection terminal 3. When it is necessary to connect the load cable, the insulating plate 70 on the corresponding busbar group is removed to improve the safety when connecting the load cable without shutting down the entire load cabinet.

[0062] The bracket can be made of metal or plastic. When using metal, insulation measures are required, such as spraying insulating paint on the surface of the bracket.

[0063] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Any modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A power distribution cabinet anti-electric shock protection device, characterized in that: The device includes a support and an insulating plate (70). The support includes a first plate (10), an extension (20), a second plate (30), and an insulating plate (70). The lower end of the extension (20) is connected to one end of the first plate (10), and the upper end of the extension (20) is connected to one end of the second plate (30). The other ends of the first plate (10) and the second plate (30) extend in opposite directions. The lower side of the first plate (10) is provided with a hook (11) and an elastic clip (12). In use, the first plate (10) is installed on the busbar support (1) through the hook (11) and the elastic clip (12), and the insulating plate (70) is used to install on the second plate (30).

2. The electric shock protection device for a power distribution cabinet according to claim 1, characterized in that: An elastic clip (12) is provided on the lower side of the end of the first plate (10) away from the extension (20), and a hook (11) is provided on the bottom side of the first plate (10) near the extension (20).

3. The electric shock protection device for a power distribution cabinet according to claim 2, characterized in that: The hook (11) and the elastic clip (12) are welded to the bottom of the first plate (10) or integrally formed with the first plate (10).

4. The electric shock protection device for a power distribution cabinet according to claim 1, characterized in that: The first plate (10) has an elastically extendable extension (13) located between the hook (11) and the elastic clip (12).

5. The electric shock protection device for a power distribution cabinet according to claim 1, characterized in that: The second plate (30) has a slot (301) on its upper side, and the insulating plate (70) is fitted into the slot (301).

6. The electric shock protection device for a power distribution cabinet according to claim 5, characterized in that: The second plate (30) is provided with a limiting part (31) on the side away from the extension (20). The limiting part (31) is provided with a first limiting groove (311) on the side facing the extension (20). A retaining plate (40) is installed on the upper side of the second plate (30) near the extension (20). A second limiting groove (42) is provided on the side of the retaining plate (40) facing the limiting part (31). The retaining groove (301) is formed between the first limiting groove (311) and the second limiting groove (42). A first mounting hole (41) is provided on the retaining plate (40). A first threaded hole (34) is provided on the second plate (30). The threaded end of the first screw (60) passes through the first mounting hole (41) and is screwed into the first threaded hole (34).

7. The electric shock protection device for a power distribution cabinet according to claim 6, characterized in that: The second plate (30) is provided with first guide clips (33) on both sides near the extension (20), and a first guide groove (331) is formed between the first guide clips (33) on both sides. The plate (40) slides into the first guide groove (331), and the first mounting hole (41) is an elongated hole.

8. The electric shock protection device for a power distribution cabinet according to claim 1, characterized in that: The extension (20) is a third plate connected between the first plate (10) and the second plate (30).

9. The electric shock protection device for a distribution cabinet according to claim 1, characterized in that: The extension (20) includes a first extension plate (14) and a second extension plate (32). The first extension plate (14) is connected to the upper side of the first plate (10), and the second extension plate (32) is connected to the lower side of the second plate (30). A second threaded hole (16) is provided on the first extension plate (14), and a second mounting hole (321) is provided on the second extension plate (32). The threaded end of the second screw (50) passes through the second mounting hole (321) and is screwed into the second threaded hole (16).

10. A power distribution cabinet electric shock protection device according to claim 9, characterized in that: The first extension plate (14) is provided with second guide clips (15) on both sides respectively, and a second guide groove (151) is formed between the second guide clips (15) on both sides. The second extension plate (32) slides into the second guide groove (151), and the second mounting hole (321) is an elongated hole.