High-power immersion liquid cooling PDU device

Abstract

The utility model discloses a high-power immersion liquid cooling PDU device in the field of PDU devices, which comprises a shell, a plurality of terminals are arranged at one end of the shell, one end of each terminal extends outwards, and the other end of each terminal extends into the shell. An upper cavity filled with cooling liquid and a lower cavity filled with cooling media are formed in the shell, the interior of the lower cavity is divided by aluminum fins to form channels, the upper cavity is provided with an insulating frame, the insulating frame extends in the length direction of the shell, one end of the shell extends outwards to form a connecting part, and the other end of the shell extends outwards to form a connecting part. A plurality of access copper bars are arranged in the shell; according to the high-power immersion liquid cooling PDU device, the upper cavity and the lower cavity are formed in the shell, the copper bars and the terminals are subjected to immersion liquid cooling, cooling liquid absorbs heat dissipated by the copper bars and the terminals in the upper cavity, heat exchange is carried out through the lower cavity, and efficient heat dissipation of the copper bars and the terminals in the shell is achieved.

Description

Technical Field

[0001] The utility model relates to the field of PDU devices, in particular to a high-power immersion liquid-cooled PDU device. Background Art

[0002] A PDU (Power Distribution Unit) is a device widely used in various applications, including data centers, computer rooms, and electric vehicle high-voltage systems. Its primary function is to distribute power to devices such as servers, computers, network equipment, and electric vehicle high-voltage systems. It relays alternating current (AC) from a single power source (such as utility power, a generator, or a UPS) to various devices, ensuring a stable and reliable power supply.

[0003] Existing PDU devices also have the following defects: With the continuous development of data center technology and the rise of AI technology, computing power continues to increase, the heat power of CPU and GPU continues to increase, the power of a single server also increases accordingly, and the power supply that PDU needs to provide also needs to increase. Traditional natural air cooling PDU devices usually dissipate heat through the heat dissipation holes or heat sinks on the device casing. This heat dissipation method causes uneven heat distribution inside the device. Some components overheat due to poor heat dissipation and rely on natural convection of air to dissipate heat. The heat dissipation efficiency is low and the heat dissipation performance is poor. It can no longer meet the power supply needs of high-power servers in data centers. Utility Model Content

[0004] In order to overcome the deficiencies of existing technical solutions, the utility model provides a high-power immersion liquid-cooled PDU device, which can effectively solve the technical problem of poor heat dissipation performance of existing PDU devices.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a high-power immersion liquid-cooled PDU device, comprising a shell, one end of the shell is provided with a plurality of terminals, one end of the terminal extends outward, and the other end of the terminal extends to the interior of the shell, the interior of the shell forms an upper cavity filled with cooling liquid and a lower cavity filled with cooling medium, the interior of the lower cavity is separated by aluminum fins to form a channel, the upper cavity is installed with an insulating frame, the insulating frame extends along the length direction of the shell, one end of the shell extends outward to form a connecting portion, a plurality of access copper bars are installed inside the shell, one end of the terminal is provided with a plurality of cables, the cables are respectively connected to the access copper bars, one end of the access copper bar extends outward to the connecting portion, the other end of the access copper bar extends outward and is connected to the insulating frame, one end of the shell is provided with an end plate, the end plate is provided with a plurality of inserted copper bars that match the access copper bars.

[0006] Furthermore, an insulating block is formed in the middle of the end plate, one end of the inserted copper busbar extends outward to the outside of the insulating block, and the other end of the inserted copper busbar extends outward to the inside of the shell and cooperates with the access copper busbar.

[0007] Furthermore, one end of the shell is provided with a liquid inlet for the cooling medium to flow in and a liquid outlet for the cooling medium to flow out.

[0008] Furthermore, a conductive liquid injection port is provided at one end of the shell, and a conductive exhaust port is provided at the other end of the shell.

[0009] Furthermore, a sealing rubber ring is provided on the edge of the connecting portion and fits the connecting portion, and the end plate is sealed in pair with the connecting portion through the sealing rubber ring.

[0010] Furthermore, a cover plate is provided at one end of the shell.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is a high-power immersion liquid-cooled PDU device, which forms an upper cavity and a lower cavity inside the shell, and the copper busbar and the terminal are immersed in liquid cooling. The cooling liquid absorbs the heat emitted by the copper busbar and the terminal inside the upper cavity, and cooperates with the cooling medium inside the lower cavity to perform heat exchange through the lower cavity, thereby achieving efficient heat dissipation of the copper busbar and the terminal inside the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of the front end of a high-power immersion liquid-cooled PDU device of the present invention;

[0013] Figure 2 This is an exploded view of a high-power immersion liquid-cooled PDU device of the utility model;

[0014] Figure 3 This is a schematic diagram of the connection structure between the end plate and the shell of a high-power immersion liquid-cooled PDU device of the present invention;

[0015] Figure 4 This is a three-dimensional diagram of the bottom end of a high-power immersion liquid-cooled PDU device of the present invention;

[0016] Figure 5 This is a perspective view of the left end of a high-power immersion liquid-cooled PDU device of the present invention;

[0017] Figure 6 This is a cross-sectional view of a high-power immersion liquid-cooled PDU device of the present invention;

[0018] Figure 7 This is a cross-sectional view of the lower cavity of the shell of a high-power immersion liquid-cooled PDU device of the present invention.

[0019] Numbers in the figure:

[0020] 1-shell; 2-terminal; 3-connecting part; 4-end plate; 5-insulating block; 6-inserting copper busbar; 7-sealing rubber ring; 8-insulating frame; 9-access copper busbar; 10-cover plate; 11-liquid inlet; 12-liquid outlet; 13-liquid filling port; 14-exhaust port; 15-cable; 16-upper cavity; 17-lower cavity. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1-Figure 7 As shown, a high-power immersion liquid-cooled PDU device includes a shell 1, one end of the shell 1 is provided with a plurality of terminals 2, one end of the terminal 2 extends outward, and the other end of the terminal 2 extends to the interior of the shell 1, the interior of the shell 1 forms an upper cavity 16 for filling with coolant and a lower cavity 17 filled with cooling medium, the interior of the lower cavity 17 is separated by aluminum fins to form a channel, the upper cavity 16 is installed with an insulating frame 8, the insulating frame 8 extends along the length direction of the shell 1, one end of the shell 1 extends outward to form a connecting portion 3, a plurality of access copper bars 9 are installed inside the shell 1, one end of the terminal 2 is provided with a plurality of cables 15, the cables 15 are respectively connected to the access copper bars 9, one end of the access copper bar 9 extends outward to the connecting portion 3, the other end of the access copper bar 9 extends outward and is connected to the insulating frame 8, one end of the shell 1 An end plate 4 is provided, and the end plate 4 is provided with several inserted copper bars 6 that are paired with the access copper bars 9. The access copper bars 9 and the inserted copper bars 6 are paired with each other, so that the PDU device is easy to install and maintain. Five inserted copper bars 6 and five access copper bars 9 are arranged respectively. The access copper bars 9 are fixedly installed through the insulating frame 8, and the cables 15 connected to the terminals 2 are welded at the corresponding positions. When the PDU device is installed, an insulating and heat-conductive coolant is injected into the shell 1. The coolant absorbs the heat dissipated from the copper bars and the terminals 2, and heat exchange is performed through the cooling medium (refrigerant or chilled water) inside the lower cavity 17 to discharge the heat. The current that can be carried by the five inserted copper bars 6 and the access copper bars 9 is greatly increased, and the power supply power that a single terminal 2 can provide will also be greatly improved. A single PDU device can provide a power supply of more than 120KW. The upper cavity 16 is also provided with heat exchange fins to absorb heat in the coolant.

[0023] An insulating block 5 is formed in the middle of the end plate 4, one end of the inserted copper busbar 6 extends outward to the outside of the insulating block 5, and the other end of the inserted copper busbar 6 extends outward to the inside of the shell 1 and cooperates with the access copper busbar 9. The insulating block 5 in the middle part of the end plate 4 is an insulator and is fixed to the end plate 4 by sintering.

[0024] One end of the shell 1 is provided with a liquid inlet 11 for the cooling medium (refrigerant or chilled water) to flow in and a liquid outlet 12 for the cooling medium (refrigerant or chilled water) to flow out, which can optimize the flow path of the cooling medium (refrigerant or chilled water) and further improve the heat dissipation effect. One end of the shell 1 is provided with a conductive liquid injection port 13, and the other end of the shell 1 is provided with a conductive exhaust port 14. One end of the shell 1 is provided with a cover plate 10. Through the reserved liquid injection port 13 and exhaust port 14, the coolant can be injected for testing first, and then the coolant can be injected into the interior of the shell 1 after the test is completed without any problems.

[0025] The edge of the connecting portion 3 is provided with a sealing rubber ring 7 that fits with the connecting portion 3. The end plate 4 is sealed with the connecting portion 3 through the sealing rubber ring 7, which can ensure that the sealing level between the end plate 4 and the shell 1 reaches above IP68, preventing leakage of the coolant.

[0026] The shell 1 is formed by extrusion of an aluminum profile. The connecting part 3 and the cover plate 10 are welded to the shell 1 by brazing or friction stir welding. The terminal 2 is connected to the access copper bus 9 by welding. The cable 15 is respectively connected to the terminal 2 and one end of the access copper bus 9 by welding. The welding method between the terminal 2 and the copper bus is sequential welding. For example, the first terminal 2 is connected to the live wire L1, N, PE, the second terminal 2 is connected to L2, N, PE, the third terminal 2 is connected to L3, N, PE, and the fourth terminal 2 is connected to L1, N, PE. This is repeated to ensure that the three loads are balanced. The interior of the lower cavity 17 forms a channel through the aluminum fins, so that the cooling medium (refrigerant or chilled water) flows from the liquid inlet 11 to the liquid outlet 12.

[0027] A high-power immersion liquid-cooled PDU device of this embodiment forms an upper cavity 16 and a lower cavity 17 inside the shell 1, and the copper busbar and the terminal 2 are immersed in liquid cooling. The cooling liquid absorbs the heat emitted by the copper busbar and the terminal 2 inside the upper cavity 16, and cooperates with the cooling medium in the lower cavity 17 to perform heat exchange, thereby achieving efficient heat dissipation of the copper busbar and the terminal 2 inside the shell 1.

[0028] During use, the shell 1 is filled with insulating and heat-conducting coolant through the liquid filling port 13, and the copper busbar and terminal 2 in the upper cavity 16 are immersed in the coolant. The coolant absorbs the heat generated by the copper busbar and terminal 2 during operation, and the exhaust port 14 can discharge the coolant. The cooling medium (refrigerant or chilled water) is introduced into the lower cavity 17 through the liquid inlet 11, and the cooling medium (refrigerant or chilled water) is discharged through the liquid outlet 12. In this way, the cooling medium (refrigerant or chilled water) circulates repeatedly, and the coolant in the upper cavity 16 absorbs the heat generated by the copper busbar and terminal 2, while the cooling medium (refrigerant or chilled water) in the lower cavity 17 circulates and exchanges heat with the coolant in the upper cavity 16. The cooling medium that absorbs heat is connected to the air conditioner outdoor unit or the external cooling tower to dissipate the heat into the air, thereby achieving heat dissipation of the copper busbar and terminal 2.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention, and any reference numerals in the claims should not be construed as limiting the claims to which they relate.

Claims

1. A high-power submerged liquid-cooled PDU device, comprising a housing, wherein one end of the housing is provided with a plurality of terminals, one end of each terminal extending outward and the other end of each terminal extending into the interior of the housing, characterized in that: The interior of the shell forms an upper cavity filled with coolant and a lower cavity filled with cooling medium. The interior of the lower cavity is separated by aluminum fins to form a channel. The upper cavity is equipped with an insulating frame, which extends along the length direction of the shell. One end of the shell extends outward to form a connecting portion. Several access copper bars are installed inside the shell. Several cables are provided at one end of the terminal, and the cables are respectively connected to the access copper bars. One end of the access copper bar extends outward to the connecting portion, and the other end of the access copper bar extends outward and is connected to the insulating frame. One end of the shell is equipped with an end plate, and the end plate is provided with several inserted copper bars that match the access copper bars.

2. A high-power immersion liquid-cooled PDU device according to claim 1, characterized in that: An insulating block is formed in the middle of the end plate, one end of the inserted copper busbar extends outward to the outside of the insulating block, and the other end of the inserted copper busbar extends outward to the inside of the shell and cooperates with the access copper busbar.

3. A high-power immersion liquid-cooled PDU device according to claim 1, characterized in that: One end of the shell is provided with a liquid inlet for the cooling medium to flow in and a liquid outlet for the cooling medium to flow out.

4. A high-power immersion liquid-cooled PDU device according to claim 1, characterized in that: One end of the shell is provided with a conductive liquid injection port, and the other end of the shell is provided with a conductive exhaust port.

5. A high-power immersion liquid-cooled PDU device according to any one of claims 1 to 4, characterized in that: The edge of the connecting portion is provided with a sealing rubber ring that fits the connecting portion, and the end plate is matched with the connecting portion and sealed through the sealing rubber ring.

6. A high-power immersion liquid-cooled PDU device according to any one of claims 1 to 4, characterized in that: A cover plate is provided at one end of the shell.

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