Power cabinet and heat dissipation system

Abstract

The utility model discloses a power cabinet and a heat radiation system thereof, the power cabinet comprises a closed power cabinet main body and a heat radiation cabinet body capable of interacting with external air, and a power module, an evaporator of a thermosyphon heat radiator, an electrolytic capacitor, a switch device and an internal fan are accommodated in the power cabinet main body; a power inductor, a condenser of a thermosyphon radiator and an external circulating fan are contained in the heat dissipation cabinet body, the power cabinet adopts a thermosyphon heat exchange technology, heat of a power module in the cabinet is transferred to the heat dissipation cabinet body, meanwhile, the power inductor is externally arranged in the heat dissipation cabinet body, an internal heat exchange device and an external heat exchange device of the power inductor are omitted, and the heat dissipation efficiency is improved. The heating value in the power cabinet main body is effectively reduced, the heat exchange cost in the power cabinet main body is saved, and the IP65 protection level of the power cabinet main body can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronic heat dissipation, in particular to a power cabinet and a heat dissipation system. Background Art

[0002] At present, the commonly used cooling method for high-power electrical equipment is air cooling without separation of internal and external heat dissipation. This heat dissipation method will cause external dust, salt spray and other possible corrosive gases and other impurities to enter the cabinet, which cannot meet the application requirements of high humidity, high salt spray and other scenes. Thermosyphon radiator can use the latent heat of the working fluid to efficiently transfer the heat in the cabinet from the inside of the cabinet to the external circulation duct. The internal components of the cabinet are completely isolated from the external duct, and the protection level of IP65 can be achieved. For the power cabinet, the main heat source in the cabinet is the power module, followed by the power inductor. The utility model places power modules and capacitors with high protection requirements inside the main body of the power cabinet, places the power inductor in the external circulation duct, and uses a thermosyphon radiator to transfer the heat of the power module to the heat dissipation cabinet, thereby efficiently realizing the heat dissipation of the whole machine. Compared with the power cabinet with built-in inductor, the internal and external heat exchange devices of the inductor are omitted, the number of internal fans used is reduced, and the ambient temperature in the cabinet is effectively reduced. Utility Model Content

[0003] The utility model proposes a power cabinet and a heat dissipation system thereof. The power cabinet adopts a thermal siphon heat exchange technology to transfer the heat of a power module in the cabinet to a heat dissipation cabinet body. At the same time, a power inductor is placed outside the heat dissipation cabinet body, and the internal and external heat exchange devices of the power inductor are eliminated. At the same time, the protection level of the power cabinet body IP65 can be met.

[0004] In order to solve the above technical problems, the utility model provides a power cabinet, which is characterized by comprising a sealed power cabinet body and a heat dissipation cabinet body interacting with the outside air, wherein the power cabinet body contains a power module, an evaporator of a thermosyphon radiator, an electrolytic capacitor, a switch device and an internal circulation fan; the heat dissipation cabinet body contains a power inductor, a condenser of a thermosyphon radiator and an external circulation fan, and the power cabinet body and the heat dissipation cabinet body are sealed and separated by a structural member;

[0005] The evaporator of the thermosyphon radiator and the condenser of the thermosyphon radiator are connected via a pipeline, and the pipeline passes through a partition structure and is sealed;

[0006] The heat dissipation cabinet is provided with an air inlet and an air outlet, the air inlet is opened at the lower part of the power cabinet, and the air outlet is opened at the upper part of the power cabinet;

[0007] The power inductor and the condenser of the thermosyphon radiator are arranged in the heat dissipation cabinet along the air duct flow direction of the heat dissipation cabinet. The power inductor is arranged on the air inlet side of the heat dissipation cabinet, and the condenser of the thermosyphon radiator is arranged on the air outlet side of the heat dissipation cabinet.

[0008] Preferably, the heat dissipation cabinet is provided with two air inlets: a first air inlet and a second air inlet, wherein the first air inlet is located at a side of the power inductor, and the second air inlet is located below the power inductor.

[0009] Preferably, the electrolytic capacitor is arranged on a side of the power module, the switching device includes a DC switch and an AC switch, and the DC switch is arranged above the AC switch.

[0010] Preferably, the internal circulation fan is arranged below the power cabinet body and installed on the power cabinet body, and the internal circulation fan blows air upwards.

[0011] Preferably, the power module is mounted on one side or both sides of the evaporator of the thermosyphon heat sink.

[0012] Preferably, in the heat dissipation cabinet, an air duct partition for adjusting the air volume of the power inductor is provided between the power inductor and the air inlet of the heat dissipation cabinet, and ventilation holes are provided on the air duct partition.

[0013] Preferably, wind guide structures are arranged around the power inductor.

[0014] Preferably, the condenser of the thermosyphon radiator is treated with salt spray resistant electrophoresis.

[0015] Preferably, the air inlet and the air outlet of the heat dissipation cabinet are provided with dustproof cotton and shutters.

[0016] In order to solve the above technical problems, the utility model also provides a heat dissipation system, which includes the power cabinet mentioned above.

[0017] After adopting the above structure, the power cabinet includes a sealed power cabinet body and a heat dissipation cabinet body interacting with the outside air, wherein the power cabinet body contains a power module, an evaporator of a thermosyphon radiator, an electrolytic capacitor, a switch device and an internal circulation fan; the heat dissipation cabinet body contains a power inductor, a condenser of a thermosyphon radiator and an external circulation fan, and the power cabinet body and the heat dissipation cabinet body are sealed and separated by a structural member; the evaporator of the thermosyphon radiator and the condenser of the thermosyphon radiator are connected by a pipeline, and the pipeline is sealed through the separation structure; the heat dissipation cabinet body is provided with an air inlet and an air outlet, the air inlet is opened at the lower part of the power cabinet, and the air outlet is opened at the lower part of the power cabinet. The opening is opened at the upper part of the power cabinet; the power inductor and the condenser of the thermosiphon radiator are arranged in the heat dissipation cabinet along the air duct flow direction of the heat dissipation cabinet, the power inductor is arranged on the air inlet side of the heat dissipation cabinet, and the condenser of the thermosiphon radiator is arranged on the air outlet side of the heat dissipation cabinet; the power cabinet adopts the thermosiphon heat exchange technology to transfer the heat of the power module in the cabinet to the heat dissipation cabinet, and at the same time, the power inductor is placed outside the heat dissipation cabinet, the internal and external heat exchange devices of the power inductor are cancelled, the heat generation inside the power cabinet body is effectively reduced, the heat exchange cost inside the power cabinet body is saved, and the protection level of the power cabinet body IP65 can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side view of a power cabinet of the utility model;

[0019] Figure 2 This is an axonometric diagram of a power cabinet of the utility model;

[0020] Figure 3 This is an axonometric diagram of a power cabinet of the utility model;

[0021] Figure 4 The figure is a structural diagram of the power inductor and the air duct of the power cabinet of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Embodiment 1

[0024] See also Figure 1 and Figure 2 , Figure 1 This is a side view of a power cabinet of the utility model. Figure 2 This is an axonometric diagram of a power cabinet of the utility model;

[0025] The present embodiment discloses a power cabinet, including a sealed power cabinet body 100 and a heat dissipation cabinet body 200 interacting with the outside air, wherein the power cabinet body 100 contains a power module 402, an evaporator 401 of a thermosyphon radiator, an electrolytic capacitor 501, a switch device and an internal circulation fan 702; the heat dissipation cabinet body 200 contains a power inductor 300, a condenser 403 of a thermosyphon radiator and an external circulation fan 701, and the power cabinet body 100 and the heat dissipation cabinet body 200 are sealed and separated by a partition structure;

[0026] The evaporator 401 of the thermosyphon radiator and the condenser 403 of the thermosyphon radiator are connected by pipelines, and the pipelines are sealed through the partition structure;

[0027] The heat dissipation cabinet 200 is provided with an air inlet and an air outlet 203, the air inlet is opened at the lower part of the power cabinet, and the air outlet is opened at the upper part of the power cabinet;

[0028] The power inductor 300 and the condenser 403 of the thermosyphon radiator are arranged in the heat dissipation cabinet 200 along the air duct flow direction of the heat dissipation cabinet. The power inductor 300 is arranged on the air inlet side of the heat dissipation cabinet, and the condenser 403 of the thermosyphon radiator is arranged on the air outlet side of the heat dissipation cabinet 200.

[0029] Embodiment 2

[0030] This embodiment is based on the first embodiment. In this embodiment, the heat dissipation cabinet 200 has two air inlets: a first air inlet 201 and a second air inlet 202. The first air inlet is located on the side of the power inductor, and the second air inlet is located below the power inductor.

[0031] The condenser of the thermosyphon radiator is treated with salt spray resistant electrophoresis.

[0032] The air inlet and the air outlet of the heat dissipation cabinet 200 are provided with dustproof cotton and shutters.

[0033] Embodiment 3

[0034] This embodiment is based on the first embodiment. In this embodiment,

[0035] The electrolytic capacitor 501 is disposed on the side of the power module 402 . The switch device includes a DC switch 801 and an AC switch 802 . The DC switch 801 is disposed above the AC switch 802 .

[0036] The internal circulation fan 702 is disposed below the power cabinet body 100 and installed on the power cabinet body, and the internal circulation fan 702 blows air upward.

[0037] The power module 402 is mounted on one side or both sides of the evaporator 401 of the thermosyphon heat sink.

[0038] Embodiment 4

[0039] See also Figure 3 , Figure 3 This is an axonometric diagram of a power cabinet of the utility model;

[0040] This embodiment is based on the first embodiment. In this embodiment, in the heat dissipation cabinet 200 , an air duct partition 204 for adjusting the air volume of the power inductor 300 is provided between the power inductor 300 and the air inlet of the heat dissipation cabinet 200 , and a ventilation hole 2041 is provided on the air duct partition 204 .

[0041] The air duct partition 204 allows as much cold air as possible to first pass through the air gap 305 of the winding 302 of the power inductor 300. The ventilation holes 2041 provided on the air duct partition 204 can be used to adjust the air volume flowing through the power inductor 300. The power inductor 300 is surrounded by air guide structures 304.

[0042] Through the above arrangement, as much cold air as possible can pass through the power inductor 300 first, and the core 301 and the winding 302 of the inductor 300 are cooled first. Meanwhile, the air volume can be adjusted by changing the size of the opening 2041 .

[0043] Embodiment 5

[0044] This embodiment discloses a heat dissipation system, which includes the power cabinet described in any one of Embodiments 1 to 4.

[0045] The power cabinet adopts thermal siphon heat exchange technology to transfer the heat of the power module in the cabinet to the heat dissipation cabinet. At the same time, the power inductor is placed outside the heat dissipation cabinet, and the internal and external heat exchange devices of the power inductor are eliminated, which effectively reduces the heat generation inside the power cabinet body and saves the heat exchange cost inside the power cabinet body. At the same time, it can meet the IP65 protection level of the power cabinet body.

[0046] It should be understood that the above are only preferred embodiments of the present invention, and the patent scope of the present invention cannot be limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A power cabinet, characterized in that: It includes a sealed power cabinet body and a heat dissipation cabinet body interacting with the outside air, wherein the power cabinet body contains a power module, an evaporator of a thermosyphon radiator, an electrolytic capacitor, a switch device and an internal circulation fan; the heat dissipation cabinet body contains a power inductor, a condenser of a thermosyphon radiator and an external circulation fan, and the power cabinet body and the heat dissipation cabinet body are sealed and separated by a structural member; The evaporator of the thermosyphon radiator and the condenser of the thermosyphon radiator are connected via a pipeline, and the pipeline passes through a partition structure and is sealed; The heat dissipation cabinet is provided with an air inlet and an air outlet, the air inlet is opened at the lower part of the power cabinet, and the air outlet is opened at the upper part of the power cabinet; The power inductor and the condenser of the thermosyphon radiator are arranged in the heat dissipation cabinet along the air duct flow direction of the heat dissipation cabinet. The power inductor is arranged on the air inlet side of the heat dissipation cabinet, and the condenser of the thermosyphon radiator is arranged on the air outlet side of the heat dissipation cabinet.

2. The power cabinet according to claim 1, characterized in that: The heat dissipation cabinet is provided with two air inlets: a first air inlet and a second air inlet, wherein the first air inlet is located at a side of the power inductor, and the second air inlet is located below the power inductor.

3. The power cabinet according to claim 1, characterized in that: The electrolytic capacitor is arranged on a side of the power module, and the switch device includes a DC switch and an AC switch, wherein the DC switch is arranged above the AC switch.

4. The power cabinet according to claim 1, characterized in that: The internal circulation fan is arranged below the power cabinet body and installed on the power cabinet body, and the internal circulation fan blows air upward.

5. The power cabinet according to claim 1, characterized in that: The power module is mounted on one side or both sides of the evaporator of the thermosyphon radiator.

6. The power cabinet according to claim 1, characterized in that: In the heat dissipation cabinet, an air duct partition for adjusting the air volume of the power inductor is arranged between the power inductor and the air inlet of the heat dissipation cabinet, and ventilation holes are arranged on the air duct partition.

7. The power cabinet according to claim 1, characterized in that: Wind guide structural components are arranged around the power inductor.

8. The power cabinet according to claim 1, characterized in that: The condenser of the thermosyphon radiator is treated with salt spray resistant electrophoresis.

9. The power cabinet according to claim 1, characterized in that: The air inlet and the air outlet of the heat dissipation cabinet are provided with dustproof cotton and shutters.

10. A heat dissipation system, characterized in that: The heat dissipation system comprises the power cabinet described in any one of claims 1 to 9.

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