Power bus heat dissipation structure of immersed liquid cooling data center server

Abstract

A power bus heat dissipation structure of an immersed liquid cooling data center server comprises a plurality of busbars, the busbars are arranged in a cooling box, cooling liquid is stored in the cooling box, the busbars are separated from one another through isolation blocks, gaps are formed among the busbars, and the cooling liquid circularly flows in the gaps among the busbars. Compared with the prior art, the power bus heat dissipation structure of the immersed liquid cooling data center server ensures that sufficient cooling liquid can enter the space between the adjacent busbars, the cooling liquid is heated and vaporized under the action of the heat of the busbars, the heat of the busbars is taken away, and the heat dissipation effect of the power bus of the immersed liquid cooling data center server is improved. And meanwhile, the liquid cooling liquid flows back to the clearance space to further cool the busbar, so that heat dissipation circulation of benign heat convection is formed.

Description

Technical Field

[0001] The utility model relates to the field of power buses of data center servers, and specifically refers to a power bus heat dissipation structure and structure of an immersion liquid-cooled data center server. Background Art

[0002] With the application of artificial intelligence (AI) chips and the development of communication technology, the power consumption of a single cabinet in a data center is gradually increasing. The power required by the power bus is also getting higher and higher, and the current passing through the bus in the power bus is also increasing. As a result, the heat generated by the power bus also increases accordingly. At present, the design of using an integral insulating plate to separate the power buses of each bus can no longer meet the heat dissipation requirements of the bus caused by large currents. When the server is running at full load, the insulation plate is often burned due to poor heat dissipation of the bus, resulting in short circuits and downtime.

[0003] like Figure 4 As shown in FIG. 1 , the power bus structure of the existing integral insulating plate is composed of multiple copper plates and insulating plates, usually 4 plates, stacked together. Although the bus is immersed in the coolant as a whole, Figure 4 As shown, bus 10 and bus 40 are the outermost buses, which are in direct contact with the coolant and have a better heat dissipation effect, while bus 20 and bus 30 are wrapped by insulating plates 50, 60 and 70. The heat generated by bus 20 and bus 30 must be transferred to bus 10 and bus 40 through insulating plates 50, 60 and 70 before the heat can be diffused into the coolant. The role of insulating plates 50, 60 and 70 is to isolate the current, but it also isolates the transfer of heat. When the server is working at full load, the heat of bus 20 and bus 30 cannot be dissipated in time due to the heat insulation of the insulating plates, which causes the insulating plates 50, 60 and 70 to burn due to overheating. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a heat dissipation structure of a power bus of a server in an immersion liquid-cooled data center in view of the deficiencies of the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A power bus heat dissipation structure of an immersion liquid-cooled data center server includes a plurality of busbars, wherein the busbars are arranged in a cooling box, wherein coolant is stored in the cooling box, wherein the busbars are separated from each other by isolation blocks, gaps are formed between the busbars, and the coolant circulates in the gaps between the busbars.

[0007] Furthermore, a connection hole is provided on the busbar, and a circular positioning boss is processed on the isolation block, and the circular positioning boss is inserted into the connection hole of the busbar.

[0008] Furthermore, a positioning pin hole is processed in the middle of the circular positioning boss, and a positioning pin is arranged in the cooling box, and the positioning pin passes through the positioning pin hole.

[0009] Furthermore, the isolation block is made of polyoxymethylene material with insulating properties.

[0010] Furthermore, the number of the busbars is 4, and the power polarity of the busbars is alternately stacked with positive and negative poles.

[0011] Furthermore, a power terminal hole is provided on the busbar.

[0012] Compared with the prior art, the power bus heat dissipation structure of an immersion liquid-cooled data center server of the utility model ensures that sufficient coolant can enter the space between adjacent buses. Under the action of the heat of the bus, the coolant is heated and vaporized, taking away the heat of the bus. At the same time, the liquid coolant flows back into the gap space to further cool the bus, forming a benign thermal convection heat dissipation cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the isolation block of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the busbar of the utility model;

[0016] Figure 4 It is a structural diagram of the original busbar installation;

[0017] Among them, 1. busbar, 2. cooling box, 3. isolation block, 4. connection hole, 5. power terminal hole, 6. circular positioning boss, 7. positioning pin hole, 8. positioning pin. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present utility model will be described clearly and completely below.

[0019] Example

[0020] like Figure 1 to Figure 3As shown, a power bus heat dissipation structure of an immersion liquid-cooled data center server includes four busbars 1, the busbars 1 are arranged in a cooling box 2, and coolant is stored in the cooling box 2. The busbars 1 are stacked on each other in the cooling box 2, and are stacked in a positive and negative alternating manner. The stacked busbars 1 are separated from each other by isolation blocks 3, so that gaps are formed between the busbars 1. After the data center server is powered on and loaded, under the action of the current load, the heat generated by the busbars is absorbed by the coolant and vaporized, and the space between the busbars forms a negative pressure due to vaporization, and the surrounding liquid cooling liquid then quickly flows back and contacts the busbars to continue to absorb heat, so that the coolant circulates in the gaps between the busbars, forming an efficient heat dissipation effect.

[0021] The bus 1 is provided with a connection hole 4, and the bus 1 is provided with a power terminal hole 5 around it. The isolation block 3 is processed with a circular positioning boss 6, which is inserted into the connection hole 4 of the bus 1. A positioning pin hole 7 is processed in the middle of the circular positioning boss 6. A positioning pin 8 is arranged in the cooling box 2, and the positioning pin 8 passes through the positioning pin hole 7 to position the bus 1 through the isolation block 3.

[0022] In this embodiment, the isolation block 3 is made of polyformaldehyde with insulating properties. The isolation block 3 is a disc with a diameter of 76 mm and a thickness of 3 mm. A circular positioning boss with a diameter of 18 mm and a height of 6 mm is provided on the isolation block 3. A positioning pin hole with a diameter of 12 mm is processed in the middle of the circular positioning boss. During installation, the isolation block 3 is put on the positioning pin 8, and then the connecting hole 4 of the bus 1 is put on the circular positioning boss 6 of the isolation block 3, and so on, until all 4 buses are installed.

[0023] The present invention is not limited to the described embodiments. Those skilled in the art may make some modifications or changes without departing from the spirit and scope of the present invention, that is, within the scope of disclosure. Therefore, the scope of protection of the present invention shall be subject to the scope defined in the claims.

Claims

1. A power bus heat dissipation structure of an immersion liquid-cooled data center server, comprising a plurality of busbars, the busbars being arranged in a cooling box, the cooling box storing a coolant, characterized in that: The busbars are separated from each other by isolation blocks, gaps are formed between the busbars, and the coolant circulates in the gaps between the busbars.

2. According to the power bus heat dissipation structure of the immersion liquid-cooled data center server of claim 1, it is characterized by: The busbar is provided with a connection hole, and the isolation block is processed with a circular positioning boss, which is inserted into the connection hole of the busbar.

3. According to claim 2, a power bus heat dissipation structure of an immersion liquid-cooled data center server is characterized in that: A positioning pin hole is processed in the middle of the circular positioning boss, and a positioning pin is arranged in the cooling box, and the positioning pin passes through the positioning pin hole.

4. According to the power bus heat dissipation structure of the immersion liquid-cooled data center server of claim 1, it is characterized by: The isolation block is made of polyoxymethylene material with insulating properties.

5. The power bus heat dissipation structure of an immersion liquid-cooled data center server according to claim 1, characterized in that: The number of the busbars is 4, and the power polarity of the busbars is positive and negative poles stacked alternately.

6. The power bus heat dissipation structure of an immersion liquid-cooled data center server according to claim 1, characterized in that: The busbar is provided with a power terminal hole.

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