Low-voltage cabinet outlet row with heat dissipation mechanism

The knob and screw structure simplifies the disassembly and installation of the heat dissipation box of the low-voltage switchgear output busbar, solves the problem of difficult maintenance of the heat dissipation mechanism, improves maintenance efficiency and maintains heat dissipation effect.

CN224384882UActive Publication Date: 2026-06-19ZHEN JIANG XI MEN ZI MU XIAN YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEN JIANG XI MEN ZI MU XIAN YOU XIAN GONG SI
Filing Date
2025-06-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the existing technology, the heat dissipation mechanism of the low-voltage switchgear output busbar is complicated to install, difficult to maintain and replace, which affects the heat dissipation effect and reduces work efficiency.

Method used

A low-voltage switchgear output bar with a heat dissipation mechanism was designed. The heat dissipation box can be quickly disassembled and installed through a knob and screw structure. Combined with a removable dust cover, the maintenance and cleaning process is simplified, and dust is prevented from affecting the heat dissipation effect.

Benefits of technology

It enables convenient maintenance and replacement of the heat dissipation mechanism without the need for specific tools, improving operational efficiency and ensuring that the heat dissipation effect is not affected.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224384882U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of power equipment technology and discloses a low-voltage switchgear outlet bar with a heat dissipation mechanism. It includes a cabinet body, with a cabinet door rotatably connected to the front end of the cabinet body via a hinge. Support rods are fixed to both sides inside the cabinet body, and a crossbeam is fixed inside the cabinet body, intersecting with the support rods. Multiple outlet bar bodies are installed on one side of the crossbeam, and a heat dissipation box is installed on the other side of the crossbeam in front of the outlet bar bodies. This low-voltage switchgear outlet bar with a heat dissipation mechanism allows for easy rotation of the screw and limit block fixed to it by turning a knob. This causes the limit block to move away from the moving plate, which is then pushed by the return force of a first spring, causing the insertion plate to disengage from the slot and release the fixation between it and the connecting plate. The heat dissipation box can then be removed from the crossbeam, facilitating maintenance and replacement of the heat dissipation components inside the heat dissipation box without the need for special tools. The process is simple and highly efficient.
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Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a low-voltage switchgear output bar with a heat dissipation mechanism. Background Technology

[0002] Low-voltage switchgear outgoing line bars refer to the part of a low-voltage switchgear used to distribute electrical energy from the busbar system to various electrical devices. They consist of one or more rows of copper or aluminum conductive bars, which are connected to cables or wires by bolts or crimping to realize the transmission and distribution of electrical energy. There are various implementation methods for low-voltage switchgear outgoing line bars to meet the requirements of different occasions and needs. Common implementation methods include centralized outgoing line bars, branch outgoing line bars, and dry outgoing line bars.

[0003] Traditional low-voltage switchgear with heat dissipation mechanisms has a complex installation method, requires specific tools, is time-consuming and labor-intensive, and is difficult to operate during maintenance and replacement. This not only affects the heat dissipation effect of the switchgear but also reduces the work efficiency of the staff. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing low-voltage switchgear with heat dissipation mechanism has the disadvantage that the heat dissipation mechanism is not easy to maintain and replace. Therefore, we propose a low-voltage switchgear with heat dissipation mechanism.

[0005] To achieve the above objectives, this application adopts the following technical solution: a low-voltage switchgear with a heat dissipation mechanism, comprising a cabinet body, a cabinet door rotatably connected to the front end of the cabinet body via a hinge, support rods fixed on both sides inside the cabinet body, a crossbeam fixed inside the cabinet body, the crossbeam and support rods intersecting, multiple cable outlet bodies installed on one side of the crossbeam, a heat dissipation box installed on one side of the crossbeam in front of the cable outlet bodies, multiple cooling fans installed inside the heat dissipation box, connecting plates fixed on both sides of the heat dissipation box, housings fixed at both ends of one side of the crossbeam, a screw threadedly connected inside the housing, a limit block fixed at one end of the screw inside the housing, a knob fixed at the other end of the screw, a movable plate slidably connected inside the housing, an insert plate fixed on one side of the movable plate, and a slot for cooperating with the insert plate on the surface of the connecting plate.

[0006] Preferably, a first spring is fixed at both ends on one side of the movable plate, and the other end of the first spring is fixed to the housing.

[0007] Preferably, the limiting block is elliptical in shape, and the difference between the maximum and minimum diameters of the limiting block is greater than the distance the insert plate is inserted into the slot.

[0008] Preferably, guide rods are fixed on both sides inside the housing, and grooves that cooperate with the guide rods are provided at both ends of the movable plate.

[0009] Preferably, the surface of the screw is provided with a gasket, and the gasket is made of rubber.

[0010] Preferably, the top of the heat sink is provided with a through slot, and a dustproof plate is installed inside the through slot.

[0011] Preferably, a fixing plate is fixed at both ends on one side of the heat dissipation box, and a pull rod is slidably connected inside the fixing plate. A baffle is fixed at both ends on the top of the heat dissipation box. Limiting holes are opened at both ends on the top of the dustproof plate. The pull rod passes through the inside of the baffle and is inserted into the inside of the limiting hole. A second spring is sleeved on the surface of the movable plate. One end of the second spring is fixed to the fixing plate, and the other end of the second spring is fixed to the baffle.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, by turning the knob, the screw and the limiting block fixed to it are rotated, causing the limiting block to move away from the moving plate. At this time, the moving plate is pushed by the rebound force of the first spring, causing the insert plate to disengage from the inside of the slot and release the fixation between it and the connecting plate. Then the heat sink can be removed from the crossbeam, which makes it convenient for users to maintain and replace the heat dissipation components inside the heat sink. No special tools are required for operation, the process is simple and the efficiency is high.

[0014] In this invention, by setting a dustproof plate at the front end of the cooling fan, external dust can be prevented from adhering to the surface of the cooling fan and affecting its operation. At the same time, the dustproof plate is designed to be detachable. By pulling the lever, the lever can be disengaged from the inside of the limiting hole, and the dustproof plate can be removed from the heat sink box. This makes it easy to clean the through holes on the surface of the dustproof plate and avoid blockage, which would affect the heat dissipation effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the heat sink structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the shell structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the dustproof plate fixing structure of this utility model.

[0020] Legend: 1. Cabinet body; 2. Cabinet door; 3. Support rod; 4. Crossbeam; 5. Cable tray body; 6. Heat dissipation box; 7. Cooling fan; 8. Connecting plate; 9. Housing; 10. Screw; 11. Limiting block; 12. Knob; 13. Moving plate; 14. Insert plate; 15. Slot; 16. First spring; 17. Guide rod; 18. Groove; 19. Gasket; 20. Through groove; 21. Dustproof plate; 22. Fixing plate; 23. Pull rod; 24. Baffle; 25. Limiting hole; 26. Second spring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Reference Figures 1-5 As shown, this utility model provides a technical solution: a low-voltage switchgear with a heat dissipation mechanism, including a cabinet body 1. The front end of the cabinet body 1 is rotatably connected to a cabinet door 2 via a hinge. Support rods 3 are fixed on both sides inside the cabinet body 1. A crossbeam 4 is fixed inside the cabinet body 1. The crossbeam 4 and the support rods 3 are placed crosswise. Multiple cable outlet bodies 5 are installed on one side of the crossbeam 4. A heat dissipation box 6 is installed on one side of the crossbeam 4 in front of the cable outlet bodies 5. Multiple cooling fans 7 are installed inside the heat dissipation box 6. Connecting plates 8 are fixed on both sides of the heat dissipation box 6. Housings 9 are fixed at both ends on one side of the crossbeam 4. A screw 10 is threadedly connected inside the housing 9. A limit block 11 is fixed at one end of the screw 10 inside the housing 9, and a knob 12 is fixed at the other end of the screw 10. The internal sliding connection includes a movable plate 13, with an insert plate 14 fixed to one side of the movable plate 13. A slot 15 for use with the insert plate 14 is provided on the surface of the connecting plate 8. Both ends of one side of the movable plate 13 are fixed with a first spring 16, and the other end of the first spring 16 is fixed to the housing 9. By turning the knob 12, the screw 10 and the limiting block 11 fixed to it are rotated, causing the limiting block 11 to move away from the movable plate 13. At this time, the movable plate 13 is pushed by the rebound force of the first spring 16, causing the insert plate 14 to disengage from the inside of the slot 15, releasing the fixation between it and the connecting plate 8. Then the heat sink 6 can be removed from the crossbeam 4, making it convenient for users to maintain and replace the heat dissipation components inside the heat sink 6. No special tools are required for operation, the process is simple, and the efficiency is high.

[0023] Reference Figure 4As shown in this embodiment: the limiting block 11 is elliptical in shape, and the difference between the maximum diameter and the minimum diameter of the limiting block 11 is greater than the distance that the insert plate 14 is inserted into the slot 15. Due to the elliptical shape of the limiting block 11, the moving plate 13 can completely move the insert plate 14 away from the inside of the slot 15, thus avoiding jamming.

[0024] Reference Figure 4 As shown in this embodiment: guide rods 17 are fixed on both sides inside the housing 9, and grooves 18 that cooperate with the guide rods 17 are opened at both ends of the moving plate 13. Through the structure of the guide rods 17 and the grooves 18, the movement trajectory of the moving plate 13 can be restricted, thereby improving its stability during movement.

[0025] Reference Figure 4 As shown in this embodiment: a gasket 19 is provided on the surface of the screw 10. The gasket 19 is made of rubber. By providing the gasket 19, the properties of the rubber material can be used to further improve the firmness between the knob 12 and the housing 9, and prevent loosening.

[0026] Reference Figure 3 and Figure 5 As shown in this embodiment: a through groove 20 is provided on the top of the heat sink 6, and a dustproof plate 21 is installed inside the through groove 20. Fixing plates 22 are fixed to both ends of one side of the heat sink 6. A pull rod 23 is slidably connected inside the fixing plate 22. Baffles 24 are fixed to both ends of the top of the heat sink 6. Limiting holes 25 are provided at both ends of the top of the dustproof plate 21. The pull rod 23 passes through the interior of the baffle 24 and is inserted into the interior of the limiting hole 25. A second spring 26 is sleeved on the surface of the moving plate 13. One end of the second spring 26 is fixed to the fixing plate 22, and the other end of the second spring 26... The end is fixed to the baffle 24. By setting a dustproof plate 21 at the front end of the cooling fan 7, external dust can be prevented from adhering to the surface of the cooling fan 7 and affecting its operation. At the same time, the dustproof plate 21 is designed to be detachable. By pulling the pull rod 23, the pull rod 23 can be disengaged from the inside of the limiting hole 25, and the dustproof plate 21 can be taken out from the heat sink 6. This makes it easy to clean the through holes on the surface of the dustproof plate 21 and avoid blockage, which would affect the heat dissipation effect. The force of the second spring 26 will constrain the position of the pull rod 23, which makes it easy to re-fix the dustproof plate 21.

[0027] Working principle: By turning the knob 12, the user rotates the screw 10 and the limiting block 11 fixed to it, causing the limiting block 11 to move away from the moving plate 13. At this time, the moving plate 13 is pushed by the rebound force of the first spring 16, causing the insertion plate 14 to disengage from the inside of the slot 15, releasing the fixation between it and the connecting plate 8. Then, the heat sink 6 can be removed from the crossbeam 4, making it convenient for the user to maintain and replace the heat dissipation components inside the heat sink 6. No special tools are required for operation, the process is simple and efficient. Due to the elliptical shape of the limiting block 11, the moving distance of the moving plate 13 can completely remove the insertion plate 14 from the inside of the slot 15, avoiding jamming. Through the structure of the guide rod 17 and the groove 18, the movement of the moving plate 13 can be controlled. The movement trajectory is restricted to improve its stability during movement. By setting the gasket 19, the properties of its rubber material can be used to further improve the firmness between the knob 12 and the housing 9, and prevent loosening. By setting the dustproof plate 21 at the front end of the cooling fan 7, external dust can be prevented from adhering to the surface of the cooling fan 7 and affecting its operation. At the same time, the dustproof plate 21 is designed to be detachable. By pulling the pull rod 23, the pull rod 23 can be disengaged from the inside of the limiting hole 25, and the dustproof plate 21 can be removed from the heat sink 6, which makes it easy to clean the through holes on the surface of the dustproof plate 21 and avoid blockage, which would affect the heat dissipation effect. The force of the second spring 26 will constrain the position of the pull rod 23, which makes it easy to re-fix the dustproof plate 21.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-voltage cabinet outlet row with a heat dissipation mechanism, comprising a cabinet body (1), characterized in that: The front end of the cabinet (1) is connected to a cabinet door (2) via a hinge. Support rods (3) are fixed to both sides inside the cabinet (1). A crossbeam (4) is fixed inside the cabinet (1), and the crossbeam (4) is intersected with the support rods (3). Multiple cable tray bodies (5) are installed on one side of the crossbeam (4). A heat sink (6) is installed on one side of the crossbeam (4) in front of the cable tray bodies (5). Multiple cooling fans (7) are installed inside the heat sink (6). Both sides of the heat sink (6) are fixed with… The connecting plate (8) has a housing (9) fixed at both ends on one side of the crossbeam (4). The housing (9) is threaded with a screw (10). One end of the screw (10) inside the housing (9) is fixed with a limit block (11). The other end of the screw (10) is fixed with a knob (12). The housing (9) is slidably connected with a moving plate (13). One side of the moving plate (13) is fixed with a plug plate (14). The surface of the connecting plate (8) is provided with a slot (15) that cooperates with the plug plate (14).

2. The low-voltage cabinet outlet row with a heat dissipation mechanism according to claim 1, characterized in that: Both ends of one side of the movable plate (13) are fixed with a first spring (16), and the other end of the first spring (16) is fixed to the housing (9).

3. The low voltage cabinet outlet row with heat dissipation mechanism according to claim 1, characterized in that: The limiting block (11) is elliptical in shape, and the difference between the maximum and minimum diameters of the limiting block (11) is greater than the distance between the insertion plate (14) and the slot (15).

4. The low voltage cabinet outlet row with heat dissipation mechanism according to claim 1, characterized in that: Guide rods (17) are fixed on both sides inside the housing (9), and grooves (18) that cooperate with the guide rods (17) are opened at both ends of the movable plate (13).

5. The low voltage cabinet outlet row with heat dissipation mechanism according to claim 1, characterized in that: The screw (10) has a gasket (19) on its surface, and the gasket (19) is made of rubber.

6. The low voltage cabinet outlet row with heat dissipation mechanism according to claim 1, characterized in that: The top of the heat sink (6) is provided with a through groove (20), and a dustproof plate (21) is installed inside the through groove (20).

7. A low-voltage switchgear output bar with a heat dissipation mechanism according to claim 6, characterized in that: Fixed plates (22) are fixed at both ends of one side of the heat sink (6). A pull rod (23) is slidably connected inside the fixed plate (22). Baffles (24) are fixed at both ends of the top of the heat sink (6). Limiting holes (25) are opened at both ends of the top of the dustproof plate (21). The pull rod (23) passes through the inside of the baffle (24) and is inserted into the inside of the limiting hole (25). A second spring (26) is sleeved on the surface of the moving plate (13). One end of the second spring (26) is fixed to the fixed plate (22), and the other end of the second spring (26) is fixed to the baffle (24).