A heat dissipation ventilation assembly of a low-voltage cabinet

Abstract

The utility model discloses a low -voltage cabinet's heat dissipation ventilation subassembly, hollow main part sets up inside low -voltage cabinet, with the first end and second end of length direction, and with cooperation side wall, the first end of hollow main part is equipped with the first intercommunication, and the second end is equipped with the second intercommunication, the heat conduction stick is inserted in cooperation side wall, the heat conduction stick has the first section of inside hollow main part's extension and the second section of outside hollow main body, the inside of heat conduction stick is filled with the heat storage medium of absorbable and release heat, and ventilation device includes ventilation window, flow fan, ventilation window is linked with the first intercommunication, and flow fan is linked with the second ventilation, is used for producing the airflow of flowing through the second ventilation, and in ventilation window and flow fan's two, at least one is set up in the outside of low -voltage cabinet. The utility model discloses can be installed in low -voltage cabinet, and changes low -voltage cabinet's ventilation heat dissipation capacity according to actual demand, effectively satisfies the heat dissipation ventilation demand of low -voltage cabinet.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear technology, and in particular to a heat dissipation and ventilation component for a low-voltage switchgear. Background Technology

[0002] Low-voltage switchgear is equipment used for converting and configuring electrical energy. During operation, the electrical components inside the switchgear generate a significant amount of heat, which needs to be dissipated effectively and promptly to ensure normal operation and extend the equipment's lifespan. Typically, exhaust fans are installed on the top, bottom, or walls of the switchgear to remove this heat. However, the ventilation and heat dissipation capacity of these switchgears is fixed after manufacturing and difficult to adjust according to actual needs. Ventilation and heat dissipation are easier near the exhaust fans, but more difficult in areas further away. This is especially true for switchgears with internal partitions, which further obstruct airflow, exacerbating poor heat dissipation and affecting the overall cooling efficiency of the switchgear. Therefore, there is an urgent need to design a cooling and ventilation component for low-voltage switchgear that can modify its ventilation and heat dissipation capacity according to actual requirements and meet the specific cooling and ventilation needs of the switchgear. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a heat dissipation and ventilation component for a low-voltage switchgear, which can be installed inside the low-voltage switchgear and can change the ventilation and heat dissipation capacity of the low-voltage switchgear according to actual needs, effectively meeting the heat dissipation and ventilation requirements of the low-voltage switchgear, and is highly practical.

[0004] The technical solution of this utility model is achieved as follows: a heat dissipation and ventilation component for a low-pressure cabinet, comprising a hollow body, a heat-conducting rod, and a ventilation device;

[0005] The hollow body is disposed inside the low-voltage switchgear, and has a first end and a second end in the length direction, as well as a mating sidewall; the first end of the hollow body is provided with a first connecting port, and the second end is provided with a second connecting port;

[0006] Several groups of the heat-conducting rods are arranged at intervals along the length of the hollow body and are inserted into the mating sidewalls; each heat-conducting rod has a first section extending into the interior of the hollow body and a second section exposed outside the hollow body; each heat-conducting rod has an internal hollow structure and is made of a heat-conducting material; the interior of each heat-conducting rod is filled with a heat storage medium that can absorb and release heat.

[0007] The ventilation device includes a ventilation window and a guide fan; the ventilation window is connected to a first communication port; the guide fan is connected to a second ventilation port and is used to generate airflow through the second ventilation port; at least one of the ventilation window and the guide fan is located outside the low-voltage switchgear.

[0008] Furthermore, a cable groove is provided on the outer wall surface of the mating sidewall; the cable groove extends along the length direction of the hollow body.

[0009] Furthermore, the hollow body has end plates located at a first end and a second end; an adjustment assembly is provided for each end plate; the adjustment assembly includes an adjustment screw and a pad disposed on the adjustment screw; the adjustment screw extends along the length direction of the hollow body and is threadedly connected to the end plate.

[0010] Furthermore, the ventilation device includes a first extension pipe and a second extension pipe; the first end of the first extension pipe is connected to a first communication port, and the second end is connected to a ventilation window; the first end of the second extension pipe is connected to a second communication port, and the second end is connected to a ventilation end of a heat-conducting fan.

[0011] Furthermore, the hollow body has an installation sidewall facing away from the mating sidewall; the installation sidewall is provided with a groove extending along the length direction of the hollow body; the first connecting port and the second connecting port are both provided on the bottom surface of the groove; the second extension tube is housed in the groove and extends along the length direction of the groove.

[0012] Furthermore, a number of heat-conducting fins are arranged at intervals on the outer wall of the second section of the heat-conducting rod.

[0013] Furthermore, both the airflow fan and the ventilation window are located on the outside of the low-voltage switchgear.

[0014] Furthermore, the heat storage medium is paraffin, heat transfer oil, or water.

[0015] Furthermore, the hollow body is made of a thermally conductive material.

[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] 1. This utility model utilizes a hollow main body and a ventilation device. The hollow main body can be installed at a predetermined position within the low-voltage switchgear. A heat-conducting rod is inserted into the hollow main body to conduct heat from inside the switchgear to its interior. The ventilation device creates an airflow within the hollow main body, ensuring full contact between the airflow and the heat-conducting rod, thus expelling heat to the outside of the switchgear through heat exchange. Additionally, some heat within the switchgear can be absorbed and stored through a heat storage medium. This heat can be released when the switchgear is under low load or idle, achieving staggered heat dissipation. This combination allows the overall structure to be positioned at different locations within the switchgear according to actual needs, altering the ventilation and heat dissipation capacity of different areas within the switchgear, effectively meeting the heat dissipation and ventilation requirements of the switchgear, and demonstrating strong practicality.

[0018] 2. By using the adjustment components, when the hollow main body is placed inside the low-voltage cabinet, the adjustment screw is turned to make the pad block abut against the side wall or partition of the low-voltage cabinet, thereby fixing the hollow main body inside the low-voltage cabinet. The overall structure is easy to disassemble and assemble, saving time and effort, and is highly practical. Attached Figure Description

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 3 This is an assembly diagram of the overall structure of this utility model installed inside a low-voltage cabinet;

[0023] Figure 4 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0024] Figure 5 This is a three-dimensional structural diagram of the hollow main body of this utility model;

[0025] Figure 6 This is a three-dimensional structural schematic diagram of the heat-conducting rod of this utility model;

[0026] The components include: 1. Hollow body; 11. First connecting port; 12. Second connecting port; 13. Matching side wall; 14. Groove; 15. End plate; 2. Heat-conducting rod; 21. First section; 22. Second section; 23. Heat-conducting fin; 24. End cap; 3. Ventilation window; 31. First extension tube; 4. Guide fan; 41. Second extension tube; 5. Adjusting screw; 51. Pad; 6. Cable tray. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0028] Example 1

[0029] like Figure 1-6The diagram shows a heat dissipation and ventilation assembly for a low-voltage switchgear according to this embodiment. This assembly is installed inside the low-voltage switchgear and can be used independently or in conjunction with the switchgear's built-in exhaust system to ventilate and dissipate heat. The assembly includes a hollow body 1, a heat-conducting rod 2, and a ventilation device. The hollow body 1 is installed inside the low-voltage switchgear. The hollow body 1 has a designed length and forms an internal cavity structure. It has a first end and a second end along its length. A first communication port 11, communicating with the interior of the hollow body 1, is machined on the first end of the sidewall of the hollow body 1, and a second communication port is machined on the second end of the sidewall of the hollow body 1. One of the sidewalls of the hollow body 1 located between the first and second ends forms a mating sidewall 13. In this embodiment, the hollow body 1 is made of a metallic thermally conductive material. Heat within the low-voltage switchgear can be guided from the outer wall of the hollow body 1 to the inner wall of the hollow body 1 via the hollow body 1.

[0030] The aforementioned heat-conducting rod 2 has a designed length and is a hollow structure made of a metallic thermally conductive material, preferably copper. The interior of the heat-conducting rod 2 is filled with a heat storage medium that can absorb and release heat. Specifically, one end of the heat-conducting rod 2 is fitted with a removable end cap 24. By opening the end cap 24, the heat storage medium can be added to or removed from the heat-conducting rod 2. The end cap 24 can be threadedly connected to the heat-conducting rod 2. Through this structural design, heat conducted to the heat-conducting rod 2 can be absorbed by the heat storage medium, and the absorbed heat can be released and conducted back to the heat-conducting rod 2. Specifically, several groups of heat-conducting rods 2 are arranged at intervals along the length of the hollow body 1. Threaded holes are machined on the mating sidewall 13 corresponding to each heat-conducting rod 2. The heat-conducting rod 2 passes through the threaded holes and is threadedly sealed to them. The aforementioned heat-conducting rod 2 has a first section 21 extending into the interior of the hollow body 1 and a second section 22 exposed outside the hollow body 1. Through the above structural design, the heat inside the low-pressure cabinet can be conducted to the first section 21 of the heat-conducting rod 2, and then conducted to the second section 22 via the first section 21 of the heat-conducting rod 2, so that the heat can enter the interior of the hollow body 1.

[0031] The outer wall of the second section 22 of the heat-conducting rod 2 is provided with several heat-conducting fins 23 arranged at intervals. The heat-conducting fins 23 are welded to the heat-conducting rod 2 or integrally formed. The heat-conducting fins 23 can increase the heat conduction area to guide the heat in the low-voltage cabinet to the heat-conducting rod 2. The aforementioned heat storage medium is paraffin wax, heat-conducting oil, or water.

[0032] The aforementioned ventilation device includes a ventilation window 3, a guide fan 4, a first extension pipe 31, and a second extension pipe 41. The ventilation window 3 has two ventilation ends, allowing airflow to pass between them. One ventilation end of the ventilation window 3 is connected to a first connecting port 11 via the first extension pipe 31. The first extension pipe 31 can be a flexible hose, and it is detachable from both the ventilation end of the ventilation window 3 and from the first connecting port 11. In a specific structural design, the ventilation window 3 includes a first housing, with a first chamber formed inside. Several first ventilation holes communicating with the first chamber are machined on the side wall of the first housing, forming the first ventilation end of the ventilation window 3. A first connection port communicating with the first chamber is machined on the side wall of the first housing, forming the second ventilation end of the ventilation window 3. One end of the aforementioned first extension pipe 31 is inserted into and connected to the first connection port.

[0033] The aforementioned airflow guiding fan 4 has two ventilation ends. When the airflow guiding fan 4 is operating, airflow can enter through the first ventilation end and exit from the second ventilation end. One of the ventilation ends of the airflow guiding fan 4 is connected to the second ventilation port via a second extension pipe 41. When the heat-conducting fan is operating, the airflow guiding fan 4 generates airflow through the second connecting port 12 and the second extension pipe 41, thereby forming an airflow inside the hollow body 1. In a specific structural design, the airflow guiding fan 4 includes a second housing and an exhaust fan, with a second chamber formed inside the second housing. The exhaust fan is installed inside the second housing, and the second housing is machined with a second ventilation hole and a second connection port. The second ventilation hole and the second connection port are located on opposite sides of the exhaust fan. The second ventilation hole forms the first ventilation end of the airflow guiding fan 4. The second connection port forms the second ventilation end of the airflow guiding fan 4. One end of the second extension pipe 41 is inserted and connected to the second connection port.

[0034] Through the above structural design, when the air guide fan 4 is operating, an airflow channel for air flow is formed between the first extension tube 31, the interior of the hollow body 1, and the second extension tube 41.

[0035] At least one of the aforementioned ventilation window 3 and air guide fan 4 is arranged outside the low-voltage switchgear to achieve ventilation and heat dissipation. The specific arrangement of the ventilation window 3 and air guide fan 4 depends on actual needs. In this embodiment, when both the ventilation window 3 and the air guide fan 4 are arranged outside the low-voltage switchgear, the air guide fan 4 is activated to guide the airflow from the external environment into the interior of the hollow body 1.

[0036] In this embodiment, the hollow body 1 has a mounting sidewall facing away from the mating sidewall 13. A groove 14 extending along the length direction of the hollow body 1 is formed on the mounting sidewall. The aforementioned first connecting port 11 and second connecting port 12 are both arranged on the bottom surface of the groove 14. The second extension tube 41 is housed in the groove 14 and extends along the length direction of the groove 14. Wherein, when the second extension tube 41 extends to a position near the first connecting port 11, it is bent and extends parallel to the first extension tube 31, so that the arrangement position between the first extension tube 31 and the second extension tube 41 is more compact.

[0037] In this embodiment, a cable groove 6 is installed on the outer wall surface of the aforementioned mating sidewall 13. This cable groove 6 is a conventional component of the prior art, and cables can be arranged within it. The cable groove 6 extends along the length of the hollow body 1.

[0038] In this embodiment, end plates 15 are installed on the first and second ends of the aforementioned hollow body 1. An adjustment assembly is arranged corresponding to each end plate 15. The adjustment assembly includes an adjustment screw 5 and a pad 51. The adjustment screw 5 has a designed length, extends along the length of the hollow body 1, and is threadedly connected to the end plate 15. One end of the adjustment screw 5 is inserted into the interior of the hollow body 1, and the other end is exposed outside the hollow body 1. By turning the adjustment screw 5, the height of the exposed end of the adjustment screw 5 relative to the hollow body 1 can be adjusted. The pad 51 is fixed to the exposed end of the screw. With the above structural design, when the hollow body 1 is arranged inside the low-voltage cabinet, by turning the screw, the pads 51 on both sides abut against the side walls or partitions of the low-voltage cabinet, thereby fixing the hollow body 1 inside the low-voltage cabinet. The overall structure is easy to assemble, and the hollow body 1 does not require screws for fixing, saving time and effort in disassembly and assembly.

[0039] In practical use, the hollow body 1 is placed in a preset position inside the low-voltage cabinet, and the adjusting screws 5 on both sides are turned so that the pads 51 on both sides abut against the side wall or partition of the low-voltage cabinet, thereby fixing the hollow body 1. A perforation is machined on the side wall of the low-voltage cabinet. One end of the first extension tube 31 is inserted into the first connecting port 11, and the second end extends through the perforation to the outside of the low-voltage cabinet and is connected to a ventilation end of the ventilation window 3. One end of the second extension tube 41 is inserted into the second connecting port 12, and the second end extends through the perforation to the outside of the low-voltage cabinet and is connected to a ventilation end of the guide fan 4. A heat-conducting rod 2 is inserted into the hollow body 1 to conduct heat from inside the low-voltage cabinet to the interior of the hollow body 1. When the guide fan 4 is started, an airflow is formed between the first extension tube 31, the interior of the hollow body 1, and the second extension tube 41. The airflow makes full contact with the heat-conducting rod 2 to expel heat to the outside of the low-voltage cabinet through heat exchange. Some of the heat inside the low-voltage switchgear can be absorbed and stored through a heat storage medium. This heat can be released when the low-voltage switchgear is under low load or idle, thus achieving peak-shaving heat dissipation. The combination of the above methods allows the overall structure to be arranged in different positions within the low-voltage switchgear according to actual needs, thereby changing the ventilation and heat dissipation capacity of different areas within the switchgear and effectively meeting the heat dissipation and ventilation requirements of the low-voltage switchgear, making it highly practical.

[0040] Example 2

[0041] In this embodiment, unlike in embodiment one, the ventilation window 3 is arranged outside the low-pressure cabinet and the air guide fan 4 is arranged inside the low-pressure cabinet. When the air guide fan 4 is started, it draws air from inside the low-pressure cabinet into the hollow body 1 through the second extension pipe 41 and discharges it from the ventilation window 3 to ventilate and dissipate heat inside the low-pressure cabinet.

[0042] Example 3

[0043] In this embodiment, unlike in embodiment one, the ventilation window 3 is arranged inside the low-voltage cabinet and the guide fan 4 is arranged outside the low-voltage cabinet. When the guide fan 4 starts working, it exhausts air to the outside of the second extension pipe 41 to guide the air inside the low-voltage cabinet into the ventilation window 3, and exhausts it from the guide fan 4 through the first extension pipe 31, the inside of the hollow body 1, and the second extension pipe 41 to ventilate and dissipate heat inside the low-voltage cabinet.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat dissipation and ventilation assembly for a low-voltage switchgear, comprising a hollow body, a heat-conducting rod, and a ventilation device; characterized in that: The hollow body is disposed inside the low-voltage switchgear, and has a first end and a second end in the length direction, as well as a mating sidewall; the first end of the hollow body is provided with a first connecting port, and the second end is provided with a second connecting port; Several groups of the heat-conducting rods are arranged at intervals along the length of the hollow body and are inserted into the mating sidewalls; the heat-conducting rods have a first section extending into the interior of the hollow body and a second section exposed outside the hollow body; The heat-conducting rod has an internal hollow structure and is made of a heat-conducting material; the interior of the heat-conducting rod is filled with a heat storage medium that can absorb and release heat. The ventilation device includes a ventilation window and a guide fan; the ventilation window is connected to a first communication port; the guide fan is connected to a second ventilation port and is used to generate airflow through the second ventilation port; at least one of the ventilation window and the guide fan is located outside the low-voltage switchgear.

2. The heat dissipation and ventilation assembly for a low-voltage switchgear according to claim 1, characterized in that: The outer wall surface of the mating sidewall is provided with a cable groove; the cable groove extends along the length direction of the hollow body.

3. The heat dissipation and ventilation assembly for a low-voltage switchgear according to claim 1, characterized in that: The hollow body has end plates located at a first end and a second end; an adjustment assembly is provided for each end plate; the adjustment assembly includes an adjustment screw and a pad disposed on the adjustment screw; the adjustment screw extends along the length direction of the hollow body and is threadedly connected to the end plate.

4. The heat dissipation and ventilation assembly for a low-voltage switchgear according to claim 1, characterized in that: The ventilation device includes a first extension pipe and a second extension pipe; the first end of the first extension pipe is connected to a first communication port and the second end is connected to a ventilation window; the first end of the second extension pipe is connected to a second communication port and the second end is connected to a ventilation end of a heat-conducting fan.

5. The heat dissipation and ventilation assembly for a low-voltage switchgear according to claim 4, characterized in that: The hollow body has an installation sidewall facing away from the mating sidewall; the installation sidewall is provided with a groove extending along the length direction of the hollow body; the first connecting port and the second connecting port are both provided on the bottom surface of the groove; the second extension tube is housed in the groove and extends along the length direction of the groove.

6. The heat dissipation and ventilation assembly for a low-voltage switchgear according to claim 1, characterized in that: Several heat-conducting fins are arranged at intervals on the outer wall of the second section of the heat-conducting rod.

7. The heat dissipation and ventilation assembly for a low-voltage switchgear according to claim 1, characterized in that: The airflow fan and ventilation window are both located on the outside of the low-voltage switchgear.

8. The heat dissipation and ventilation assembly for a low-voltage switchgear according to claim 1, characterized in that: The heat storage medium is paraffin, heat transfer oil, or water.

9. The heat dissipation and ventilation assembly for a low-voltage switchgear according to claim 1, characterized in that: The hollow body is made of thermally conductive material.

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