Novel liquid cooling heat dissipation high-pressure oil tank

Abstract

The utility model belongs to the technical field of electronic equipment cooling, and particularly discloses a novel liquid cooling heat dissipation high-pressure oil tank which comprises an oil tank body and an oil tank cover body arranged above the oil tank body. The fuel tank body comprises a bottom plate and fuel tank side cold plates, the fuel tank side cold plates comprise a front side plate, a left side plate, a rear side plate and a right side plate which define a square structure, each fuel tank side cold plate is composed of a side cold plate base body and a side cold plate cover plate, and a fuel tank closed flow channel is formed between each side cold plate cover plate and the corresponding side cold plate base body. Cooling liquid is provided for the oil tank side cooling plate, and the oil tank is cooled; the fuel tank cover main body comprises a fuel tank upper cover plate and a fuel tank cover cold plate, the fuel tank cover cold plate is arranged below the fuel tank upper cover plate, the fuel tank cover cold plate is composed of a tank cover cold plate base body and a tank cover cold plate cover plate, and a tank cover sealing flow channel is formed between the tank cover cold plate base body and the tank cover cold plate cover plate. And therefore, the interior of the oil tank is cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment cooling, and particularly relates to a new type of liquid-cooled heat dissipation high-voltage oil tank. Background Technique

[0002] Some electronic components that require high-voltage insulation in electronic equipment are usually placed in a sealed oil tank filled with transformer oil for cooling and heat dissipation. Currently, the common cooling methods for high-voltage oil tanks are natural heat dissipation and direct heat exchange of transformer oil.

[0003] Natural heat dissipation is achieved by arranging heat dissipation ribs on the outer surface of the oil tank to exchange heat with the external air. Its advantages are simple structure and low maintenance cost. However, due to the weak natural heat dissipation ability, the total heat dissipation of the cooling equipment inside the oil tank cannot be too high. Currently, the heat flux density of the natural heat dissipation cooling oil tank, which is the ratio of the internal heat dissipation power of the oil tank to the volume of the oil tank, is generally 5000 W / m³. With the increase in the heat generation power of electronic components and the miniaturization of equipment, the heat flux density of the oil tank is constantly increasing, and the conventional natural heat dissipation cooling oil tank can no longer meet the cooling requirements.

[0004] Direct heat exchange of transformer oil is to directly pump out the transformer oil inside the oil tank, transport it to an external cooling device for cooling, and then transport the cooled transformer oil back into the oil tank to circulate and meet the cooling requirements of the electronic components inside the oil tank. This method has high cooling efficiency. However, since the transformer oil needs to be pumped out for cooling, if the cleanliness of the external cooling device is not well controlled during the cooling process, it will contaminate the transformer oil, resulting in a reduction in the insulation withstand voltage performance of the transformer oil, thereby causing short circuits and spark damage to the components that require high-voltage insulation inside. At the same time, there is a problem of transformer oil leakage when the transformer oil is transported to the external cooling device.

[0005] Based on the above points, the current cooling forms of high-voltage oil tanks are only limited to equipment with small heat flux density. If it is necessary to cool equipment with large heat flux density, only the transformer oil can be pumped out and transported to an external cooling device for heat dissipation. For example, the high-voltage oil tank described in the invention patent CN203268558U has the disadvantage that the transformer oil needs to be pumped out to an external heat exchanger for cooling. If the cleanliness of the internal heat exchanger is not well controlled, it will cause transformer oil pollution and a reduction in the insulation withstand voltage performance, and there is also a problem of transformer oil leakage. Content of the Utility Model

[0006] The purpose of the utility model is to provide a new type of liquid-cooled heat dissipation high-voltage oil tank to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A new type of liquid-cooled heat dissipation high-voltage oil tank, including an oil tank main body and an oil tank cover main body arranged above the oil tank main body;

[0008] The fuel tank main body includes a bottom plate and fuel tank side cooling plates. The fuel tank side cooling plates are arranged above the bottom plate. The fuel tank side cooling plates include a front side plate, a left side plate, a rear side plate, and a right side plate that enclose a square structure. Each fuel tank side cooling plate is composed of a side cooling plate base body and a side cooling plate cover plate. A fuel tank closed flow channel is arranged between the side cooling plate cover plate and the side cooling plate base body. A front side water inlet and a front side water outlet connected to the fuel tank closed flow channel are arranged on the front side plate. A rear side water inlet and a rear side water outlet connected to the fuel tank closed flow channel are arranged on the rear side plate. By connecting an external coolant supply device to the front side water inlet and the rear side water inlet, coolant is provided to the fuel tank side cooling plates to cool down the fuel tank.

[0009] The fuel tank cover main body includes a fuel tank upper cover plate and a fuel tank cover cooling plate. The fuel tank cover cooling plate is arranged below the fuel tank upper cover plate. The fuel tank cover cooling plate is composed of a cover plate cooling plate base body and a cover plate cooling plate cover plate. A cover plate closed flow channel is arranged between the cover plate cooling plate base body and the cover plate cooling plate cover plate. A cover plate water inlet and a cover plate water outlet connected to the cover plate closed flow channel are arranged above the fuel tank upper cover plate. Coolant is injected into the fuel tank cover cooling plate through the cover plate water inlet to cool down the interior of the fuel tank.

[0010] Preferably, the fuel tank closed flow channels of the front side plate and the left side plate are connected, and the fuel tank closed flow channels of the rear side plate and the right side plate are connected to achieve comprehensive cooling.

[0011] Preferably, first heat dissipation ribs are arranged on the inner walls of the front side plate, the left side plate, the rear side plate, and the right side plate, and second heat dissipation ribs are arranged on both sides of the fuel tank cover cooling plate. The first heat dissipation ribs and the second heat dissipation ribs are all milled by a CNC lathe to increase the heat exchange area with the transformer oil and improve the heat exchange effect.

[0012] Preferably, the fuel tank cover cooling plate is located in the middle of the fuel tank and can be used as an isolation partition between the high-pressure and low-pressure areas inside the fuel tank, dividing the fuel tank into left and right parts. While dissipating heat inside the fuel tank, it also divides the electronic components installed inside the fuel tank into a high-pressure area and a low-pressure area to achieve high-voltage and low-voltage isolation. Wiring holes are processed on the fuel tank cover cooling plate, and high-voltage and low-voltage are connected by cables through the wiring holes.

[0013] Preferably, the fuel tank main body and the fuel tank cover main body are connected and sealed by screws and sealant. The sealant uses the aviation industry adhesive 5860 to improve the sealing performance.

[0014] Preferably, brazing is used for welding between the side cooling plate base body and the side cooling plate cover plate, and between the cover plate cooling plate base body and the cover plate cooling plate cover plate. Both the side cooling plate base body and the cover plate cooling plate base body are made of aluminum materials to improve the heat conduction effect.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] The utility model improves the cooling effect inside the fuel tank main body by arranging a fuel tank side cooling plate on the fuel tank main body and a fuel tank cover cooling plate on the fuel tank cover main body, realizes the cooling of a fuel tank with a high heat flux density, and ensures the reliable operation of electronic components. At the same time, there is no need to transport the transformer oil to an external cooling device for cooling. The coolant only flows in the internal flow channels of the fuel tank structural components and does not come into direct contact with the transformer oil, avoiding the pollution and leakage of the transformer oil. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the open structure of the fuel tank cover main body of the utility model;

[0018] Figure 2 It is a schematic diagram of the fuel tank main body structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the fuel tank cover main body structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the split structure of the side cooling plate base and the side cooling plate cover of the utility model;

[0021] Figure 5 It is a schematic diagram of the split structure of the cover cooling plate base and the cover cooling plate cover of the utility model.

[0022] In the figure: 1. Fuel tank main body; 100. Fuel tank side cooling plate; 101. Front side plate; 1011. Front side water inlet; 1012. Front side water outlet; 102. Left side plate; 103. Rear side plate; 1031. Rear side water inlet; 1032. Rear side water outlet; 104. Right side plate; 111. Side cooling plate base; 122. Side cooling plate cover; 2. Fuel tank cover main body; 201. Upper fuel tank cover; 2011. Cover water inlet; 2022. Cover water outlet; 202. Fuel tank cover cooling plate; 2021. Cover cooling plate base; 2022. Cover cooling plate cover. Detailed Description of the Preferred Embodiment

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0025] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Please refer to Figures 1-4 , the present utility model provides a technical solution: a novel liquid-cooled high-pressure fuel tank, including a fuel tank main body 1 and a fuel tank cover main body 2 disposed above the fuel tank main body 1.

[0027] Furthermore, the fuel tank main body 1 includes a bottom plate and a fuel tank side cooling plate 100. The fuel tank side cooling plate 100 is disposed above the bottom plate. The fuel tank side cooling plate 100 includes a front side plate 101, a left side plate 102, a rear side plate 103, and a right side plate 104 that enclose a square structure. Each fuel tank side cooling plate 100 is composed of a side cooling plate base body 111 and a side cooling plate cover plate 122. A fuel tank closed flow channel is provided between the side cooling plate cover plate 122 and the side cooling plate base body 111. A front side water inlet 1011 and a front side water outlet 1012 connected to the fuel tank closed flow channel are provided on the front side plate 101. A rear side water inlet 1031 and a rear side water outlet 1032 connected to the fuel tank closed flow channel are provided on the rear side plate 103. By connecting an external coolant supply device to the front side water inlet 1011 and the rear side water inlet 1031, coolant is provided to the fuel tank side cooling plate 100 to cool the fuel tank.

[0028] Furthermore, the fuel tank cover main body 2 includes a fuel tank upper cover plate 201 and a fuel tank cover cooling plate 202. The fuel tank cover cooling plate 202 is disposed below the fuel tank upper cover plate 201. The fuel tank cover cooling plate 202 is composed of a cover plate cooling plate base body 2021 and a cover plate cooling plate cover plate 2022. A cover plate closed flow channel is provided between the cover plate cooling plate base body 2021 and the cover plate cooling plate cover plate 2022. A cover plate water inlet 2011 and a cover plate water outlet 2022 connected to the cover plate closed flow channel are provided above the fuel tank upper cover plate 201. Coolant is injected into the fuel tank cover cooling plate 202 through the cover plate water inlet 2011 to cool the interior of the fuel tank.

[0029] Furthermore, the oil tank closed flow channels of the front side plate 101 and the left side plate 102 are connected, and the oil tank closed flow channels of the rear side plate 103 and the right side plate 104 are connected to achieve comprehensive cooling.

[0030] Furthermore, the inner walls of the front side plate 101, the left side plate 102, the rear side plate 103, and the right side plate 104 are provided with first heat dissipation ribs, and both sides of the oil tank cover cold plate 202 are provided with second heat dissipation ribs. The first heat dissipation ribs and the second heat dissipation ribs are both milled by a CNC lathe to increase the heat exchange area with the transformer oil and enhance the heat exchange effect.

[0031] Furthermore, the oil tank cover cold plate 202 is located in the middle of the oil tank and can be used as a partition for isolating the high and low pressure areas inside the oil tank, dividing the oil tank into left and right parts. While dissipating heat inside the oil tank, it also divides the electronic components installed inside the oil tank into a high-pressure area and a low-pressure area to achieve high and low pressure isolation. Through holes are processed on the oil tank cover cold plate 202, and high and low voltage are connected by cables through the through holes.

[0032] Furthermore, the oil tank main body 1 and the oil tank cover main body 2 are connected and sealed by screws and sealant. The sealant uses the aviation industry adhesive 5860 to improve the sealing performance.

[0033] Furthermore, brazing welding is adopted between the side cold plate base 111 and the side cold plate cover 122, and between the tank cover cold plate base 2021 and the tank cover cold plate cover 2022. The side cold plate base 111 and the tank cover cold plate base 2021 are both made of aluminum materials to improve the heat conduction effect.

[0034] In summary, when the device is in use, cooling liquid with a certain temperature and flow rate is injected into the front side plate 101 and the left side plate 102 through the front side water inlet 1011, and cooling liquid with a certain temperature and flow rate is injected into the rear side plate 103 and the right side plate 104 through the rear side water inlet 1031, so that the cooling liquid flows in the oil tank closed flow channel between the side cold plate cover 122 and the side cold plate substrate; cooling liquid with a certain temperature and flow rate is injected into the tank cover water inlet 2011, so that the cooling liquid flows in the tank cover closed flow channel between the tank cover cold plate substrate and the tank cover cold plate cover 2022. The heat of the electronic components in the oil tank is first absorbed by the internal transformer oil, and the transformer oil that absorbs heat and rises in temperature then exchanges heat with the oil tank side cold plate 100 and the oil tank cover cold plate 202. The heat is absorbed by the cooling liquid flowing through the oil tank side cold plate 100 and the oil tank cover cold plate 202 and taken out of the oil tank, and is discharged from the front side water outlet 1012, the rear side water outlet 1032, and the tank cover water outlet 2022, so as to ensure that the temperature of the transformer oil in the oil tank is within a certain controllable range and ensure the normal operation of the electronic components. This type of oil tank overcomes the problem of weak heat dissipation capacity of the natural heat dissipation oil tank, and at the same time avoids the problems of transformer oil pollution and leakage caused by transporting the transformer oil to external cooling equipment.

[0035] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of liquid-cooled high-pressure fuel tank, characterized in that: It includes a fuel tank main body (1) and a fuel tank cap main body (2) arranged above the fuel tank main body (1); The fuel tank main body (1) includes a bottom plate and a fuel tank side cooling plate (100). The fuel tank side cooling plate (100) is arranged above the bottom plate. The fuel tank side cooling plate (100) includes a front side plate (101), a left side plate (102), a rear side plate (103), and a right side plate (104) that enclose a square structure. Each fuel tank side cooling plate (100) is composed of a side cooling plate base body (111) and a side cooling plate cover plate (122). A fuel tank closed flow channel is arranged between the side cooling plate cover plate (122) and the side cooling plate base body (111). A front side water inlet (1011) and a front side water outlet (1012) connected to the fuel tank closed flow channel are arranged on the front side plate (101), and a rear side water inlet (1031) and a rear side water outlet (1032) connected to the fuel tank closed flow channel are arranged on the rear side plate (103); The fuel tank cap main body (2) includes a fuel tank upper cover plate (201) and a fuel tank cap cooling plate (202). The fuel tank cap cooling plate (202) is arranged below the fuel tank upper cover plate (201). The fuel tank cap cooling plate (202) is composed of a tank cap cooling plate base body (2021) and a tank cap cooling plate cover plate (2022). A tank cap closed flow channel is arranged between the tank cap cooling plate base body (2021) and the tank cap cooling plate cover plate (2022). A tank cap water inlet (2011) and a tank cap water outlet (2022) connected to the tank cap closed flow channel are arranged above the fuel tank upper cover plate (201).

2. The novel liquid-cooled high-pressure fuel tank according to claim 1, wherein: The fuel tank closed flow channels of the front side plate (101) and the left side plate (102) are communicated, and the fuel tank closed flow channels of the rear side plate (103) and the right side plate (104) are communicated.

3. A novel liquid-cooled high-voltage fuel tank according to claim 1, characterized in that: First heat dissipation ribs are arranged on the inner walls of the front side plate (101), the left side plate (102), the rear side plate (103), and the right side plate (104), and second heat dissipation ribs are arranged on both sides of the fuel tank cap cooling plate (202).

4. A novel liquid-cooled high-pressure fuel tank according to claim 1, characterized in that: The fuel tank cap cooling plate (202) is located in the middle of the fuel tank.

5. A novel liquid-cooled high-pressure fuel tank according to claim 1, characterized in that: The fuel tank main body (1) and the fuel tank cap main body (2) are connected and sealed by screws and sealant.

6. A novel liquid-cooled high-voltage fuel tank according to claim 1, characterized in that: Brazing welding is adopted between the side cooling plate base body (111) and the side cooling plate cover plate (122), and between the tank cap cooling plate base body (2021) and the tank cap cooling plate cover plate (2022). Both the side cooling plate base body (111) and the tank cap cooling plate base body (2021) are made of aluminum materials.

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