A liquid cooling plate

Abstract

This invention provides a liquid-cooled plate, including a main body, an inlet hole, and an outlet hole. Several power supply components are mounted on an upper and lower circuit board. A partition structure is provided on the main body of the liquid-cooled plate, dividing it into several heat dissipation channels. A turbulence structure is provided within each heat dissipation channel. The main body also has an inlet channel and an outlet channel, each with its own inlet and outlet. The liquid-cooled plate provides that the cooling medium flows into the heat dissipation channels formed by the partition structure and, through contact with the power supply components, rapidly absorbs and conducts heat. This achieves heat dissipation for the power supply components within the uninterruptible power supply by circulating the cooling medium, improving heat dissipation efficiency and meeting the required heat dissipation power of the uninterruptible power supply. The turbulence structure further enhances heat dissipation efficiency, ensuring the effective cooling performance of the liquid-cooled plate.

Description

Technical Field

[0001] This utility model relates to the field of power supply heat dissipation technology, and in particular to a liquid cooling plate. Background Technology

[0002] Uninterruptible power supply (UPS) systems are currently widely used in critical fields such as data centers, medical equipment, and communication base stations. Traditional UPS cooling methods mainly rely on air cooling technology, using fans to expel heat from the inside of the equipment. However, as the power density of UPS systems increases, air cooling technology is insufficient to meet the heat dissipation efficiency requirements of UPS systems, and it also generates significant noise during the heat dissipation process, making it difficult to control the noise level. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing air-cooling technology, which is difficult to meet the heat dissipation efficiency of UPS systems and generates significant noise during the heat dissipation process, making it difficult to control the noise level. This invention provides a liquid cooling plate.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a liquid cooling plate is disposed between the upper and lower circuit boards of an uninterruptible power supply, including a cooling plate body and a liquid inlet and a liquid outlet disposed at the bottom of the cooling plate body; the upper and lower circuit boards have a plurality of power supply components, the cooling plate body is provided with a partition structure, the partition structure divides the cooling plate body into a plurality of heat dissipation channels corresponding to the power supply components, and a plurality of turbulence structures are provided in each heat dissipation channel; the cooling plate body also has a liquid inlet channel and a liquid outlet channel for connecting the liquid inlet and the liquid outlet to the heat dissipation channels, and the liquid inlet channel and the liquid outlet channel are respectively provided with a liquid inlet and a liquid outlet.

[0005] Furthermore, the power supply components include bus capacitors, power devices, inductors, and other devices, and the partition structure includes a first partition, which, together with the frame of the cold plate body, forms a first heat dissipation channel for dissipating heat from the bus capacitors and power devices.

[0006] Furthermore, the first heat dissipation channel is connected to the liquid inlet channel.

[0007] Furthermore, the turbulence structure includes several first turbulence ribs arranged side by side in the first heat dissipation channel and second turbulence ribs arranged in segments in the first heat dissipation channel.

[0008] Furthermore, the partition structure also includes a second partition and a third partition, the second partition and the first partition forming a second heat dissipation channel for dissipating heat from the inductor.

[0009] Furthermore, several third turbulence ribs are arranged in segments within the second heat dissipation channel.

[0010] Furthermore, the second and third partitions enclose a third heat dissipation channel for dissipating heat from the inductor, and the turbulence structure further includes a number of fourth turbulence ribs arranged in segments within the third heat dissipation channel.

[0011] Furthermore, the partition structure also includes a fourth partition, which forms a fourth heat dissipation channel between the fourth partition and the third partition, and between the fourth partition and the frame of the cold plate body, for dissipating heat from the other devices.

[0012] Furthermore, the turbulence structure also includes several fifth turbulence ribs evenly distributed in the fourth heat dissipation channel, and the fourth heat dissipation channel is connected to the liquid outlet channel.

[0013] Furthermore, the cold plate body is also provided with clearance holes.

[0014] The beneficial effects of the liquid cooling plate provided by this utility model are as follows: By connecting to the liquid cooling system through the liquid inlet hole and allowing the cooling medium to flow into the heat dissipation channels formed by the partition structure through the liquid inlet channel, and by contacting several power components in the uninterruptible power supply within several heat dissipation channels, heat is quickly absorbed and conducted, rapidly carrying away the heat generated by the uninterruptible power supply. Finally, the heat is released into the environment through the external heat sink connected to the liquid outlet hole. This achieves the operation of cooling several power components in the uninterruptible power supply by utilizing the circulating flow of the cooling medium, improving heat dissipation efficiency, meeting the heat dissipation power required by the uninterruptible power supply, and effectively reducing the noise generated during the heat dissipation process. In addition, by utilizing the turbulence structure set in the heat dissipation channel, the heat dissipation efficiency can be effectively improved, further ensuring the heat dissipation effect of the liquid cooling plate. Attached Figure Description

[0015] Figure 1 Schematic diagram of the structure of the liquid cooling plate provided by this utility model Figure 1 ;

[0016] Figure 2 Schematic diagram of the structure of the liquid cooling plate provided by this utility model Figure 2 ;

[0017] Figure 3 A schematic diagram of the liquid cooling plate provided by this utility model assembled in an uninterruptible power supply;

[0018] In the picture:

[0019] 100 - Liquid cooling plate, 200 - Upper circuit board, 201 - Lower circuit board, 202 - Bus capacitor

[0020] 203 - Power Devices, 204 - Inductors, 205 - Other Devices

[0021] 11-Cold plate body, 12-Liquid inlet, 121-Liquid inlet, 13-Liquid outlet, 131-Liquid outlet

[0022] 20 - Liquid inlet channel, 21 - Liquid outlet channel, 22 - First heat dissipation channel, 23 - Second heat dissipation channel

[0023] 24-Third heat dissipation channel, 25-Fourth heat dissipation channel, 31-First partition, 32-Second partition,

[0024] 33-Third baffle, 34-Fourth baffle, 41-First baffle, 42-Second baffle

[0025] 43-Third bleed rib, 44-Fourth bleed rib, 45-Fifth bleed rib, 50-Avoidance hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] See Figure 1-3The present invention provides a liquid cooling plate 100, which is disposed between the upper circuit board 200 and the lower circuit board 201 of an uninterruptible power supply. The liquid cooling plate 100 includes a cooling plate body 11 and a liquid inlet hole 12 and a liquid outlet hole 13 disposed at the bottom of the cooling plate body 11. The uninterruptible power supply has a plurality of power supply components. The cooling plate body 11 is provided with a partition structure, which divides the cooling plate body 11 into a plurality of heat dissipation channels corresponding to the power supply components. A plurality of turbulence structures are provided in each heat dissipation channel. The cooling plate body 11 also has a liquid inlet channel 20 and a liquid outlet channel 21 for connecting the liquid inlet hole 12 and the liquid outlet hole 13 with the heat dissipation channels. The liquid inlet channel 20 and the liquid outlet channel 21 are respectively provided with a liquid inlet 121 and a liquid outlet 131. In the embodiment provided by this utility model, the liquid inlet hole 12 is connected to the liquid inlet port 121, and the liquid outlet hole 13 is connected to the liquid outlet port 131. The cooling medium flows into the liquid inlet channel 20 of the cold plate body 11 through the liquid inlet port 121, and after flowing through the heat dissipation channel and the liquid outlet channel 21, it flows out of the cold plate body 11 through the liquid outlet hole 13. The main body 11 of the cold plate provided by this utility model is made of high thermal conductivity aluminum alloy. It is connected to the liquid cooling system through the liquid inlet hole 12, and the cooling medium flows into the heat dissipation channel formed by the partition structure through the liquid inlet channel 20. Through several heat dissipation channels, it comes into contact with several power components in the uninterruptible power supply, thereby quickly absorbing and conducting heat, and rapidly carrying away the heat generated by the uninterruptible power supply. Finally, the heat is released into the environment through the external heat sink connected to the liquid outlet hole 13. This realizes the operation of cooling several power components in the uninterruptible power supply by circulating the cooling medium, improving the heat dissipation efficiency, meeting the heat dissipation power required by the uninterruptible power supply, and effectively reducing the noise generated during the heat dissipation process. In addition, by using the turbulence structure set in the heat dissipation channel, the heat dissipation efficiency can be effectively improved, further ensuring the heat dissipation effect of the liquid cooling plate 100.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, the power supply components include a bus capacitor 202, power devices 203, inductors 204, and other devices 205. The partition structure includes a first partition 31, which, together with the frame of the cold plate body 11, forms a first heat dissipation channel 22 for cooling the bus capacitor 202 and power devices 203. The first heat dissipation channel 22 is connected to the liquid inlet channel 20. In the embodiment provided by this utility model, the heat dissipation channel is designed according to the power density distribution of the bus capacitor 202, power devices 203, inductors 204, and other devices 205 of the uninterruptible power supply. The first heat dissipation channel 22, formed by the first partition 31 and the frame of the cold plate body 11, completely covers the projected area of ​​the bus capacitor 202 and the power device 203. Since the total heat loss of the bus capacitor 202 is relatively small and it is sensitive to temperature, the flow channel design on the side of the bus capacitor 202 adopts a straight-through flow channel design that connects the first heat dissipation channel 22 and the liquid inlet channel 20. By using several first turbulence ribs 41 arranged side by side in the first heat dissipation channel 22 to form a multi-channel parallel flow channel structure on the side of the bus capacitor 202, the flow resistance of the cooling medium when flowing in the first heat dissipation channel 22 is effectively reduced, the flow is increased, and the cooling medium flowing through the first heat dissipation channel 22 is guaranteed to have a heat dissipation effect on the bus capacitor 202. Furthermore, due to the high heat flux density of the power device 203, a segmented flow channel structure is formed on the side of the power device 203 by several second turbulence ribs 42 arranged in segments within the first heat dissipation channel 22. This effectively turbulents the cooling medium within the first heat dissipation channel 22 and increases its flow velocity, thereby achieving rapid heat dissipation of the power device 203 and ensuring its heat dissipation effect.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the partition structure also includes a second partition 32 and a third partition 33. The second partition 32 and the first partition 31 enclose a second heat dissipation channel 23 for dissipating heat from the inductor 204. The turbulence structure also includes a plurality of third turbulence ribs 43 arranged side by side within the second heat dissipation channel 23. Furthermore, the second partition 32 and the third partition 33 enclose a third heat dissipation channel 24 for dissipating heat from the inductor 204, and the turbulence structure also includes a plurality of fourth turbulence ribs 44 arranged side by side within the third heat dissipation channel 24. Because the inductor 204 is heavy, has high heat dissipation, and a large heat dissipation area with a low overall heat flux density, it is necessary to use the second heat dissipation channel 23 and the third heat dissipation channel 24 to completely cover the projected area of ​​the inductor 204. Furthermore, by segmenting the third turbulence ribs 43 and the fourth turbulence ribs 44 within the second heat dissipation channel 23 and the third heat dissipation channel 24, the cooling medium within the second heat dissipation channel 23 and the third heat dissipation channel 24 can be effectively turbulentized and the uniformity of the cooling medium flow can be improved. This allows the heat generated by the inductor 204 to be quickly removed, ensuring the heat dissipation effect of the inductor 204.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the partition structure also includes a fourth partition 34. The fourth partition 34 and the third partition 33, as well as the fourth partition 34 and the frame of the cold plate body 11, enclose a fourth heat dissipation channel 25 for dissipating heat from other components 205. The turbulence structure also includes several fifth turbulence ribs 45 evenly distributed within the fourth heat dissipation channel 25. Since the heat loss of other components 205 is relatively small, the flow channel design of the fourth heat dissipation channel 25 formed by the enclosed space between the fourth partition 34 and the third partition 33, and between the fourth partition 34 and the frame of the cold plate body 11, and the use of the fifth turbulence ribs 45 evenly distributed within the fourth heat dissipation channel 25 to turbulentize the cooling medium within the fourth heat dissipation channel 25 and increase the flow rate, can meet the heat dissipation requirements of other components 205.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the fourth heat dissipation channel 25 is connected to the liquid outlet channel 21. When the cooling medium flows through the inlet channel 20 and several heat dissipation channels and turbulence structures on the main body of the cold plate 11, the power components on the upper circuit board 200 and lower circuit board 201 of the uninterruptible power supply are cooled, and then flows into the liquid outlet 131 through the liquid outlet channel 21. The heat is released into the environment through the external heat sink connected to the liquid outlet 13, thereby effectively ensuring the heat dissipation efficiency and effect of the liquid cooling plate 100 and meeting the heat dissipation requirements of different power components.

[0032] like Figure 2 As shown, the main body 11 of the cold plate is also provided with a clearance hole 50. By utilizing the clearance hole 50, taller components such as the control board can be effectively allowed to pass through the clearance hole 50, thereby effectively avoiding interference when installing the liquid cooling plate 100. In addition, the cooling medium provided by this utility model is an aqueous solution of ethylene glycol, which gives the cooling medium good thermal conductivity and low-temperature fluidity. The flow rate of the cooling medium in the liquid cooling plate 100 is 5L / min, which further ensures that the cooling circulates within the main body 11, improving the heat dissipation efficiency and effect for cooling several power components in the uninterruptible power supply.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liquid cooling plate provided between an upper layer circuit board (200) and a lower layer circuit board (201) of an uninterruptible power supply, characterized by, It includes a cold plate body (11) and a liquid inlet (12) and a liquid outlet (13) disposed at the bottom of the cold plate body (11); The upper circuit board (200) and the lower circuit board (201) have a number of power supply components. The cold plate body (11) is provided with a partition structure. The partition structure divides the cold plate body (11) into a number of heat dissipation channels corresponding to the power supply components. A number of turbulence structures are provided in each of the heat dissipation channels. The cold plate body (11) also has a liquid inlet channel (20) and a liquid outlet channel (21) for connecting the liquid inlet hole (12) and the liquid outlet hole (13) with the heat dissipation channels. The liquid inlet channel (20) and the liquid outlet channel (21) are respectively provided with a liquid inlet (121) and a liquid outlet (131).

2. The liquid cold plate of claim 1, wherein, The power supply components include a bus capacitor (202), a power device (203), an inductor (204), and other devices (205). The partition structure includes a first partition (31), which, together with the frame of the cold plate body (11), forms a first heat dissipation channel (22) for dissipating heat from the bus capacitor (202) and the power device (203).

3. The liquid cold plate of claim 2, wherein, The first heat dissipation channel (22) is connected to the liquid inlet channel (20).

4. The liquid cold plate of claim 3, wherein, The turbulence structure includes several first turbulence ribs (41) arranged side by side in the first heat dissipation channel (22) and second turbulence ribs (42) arranged in segments in the first heat dissipation channel (22).

5. The liquid cold plate of claim 2, wherein, The partition structure further includes a second partition (32) and a third partition (33), wherein the second partition (32) and the first partition (31) enclose a second heat dissipation channel (23) for dissipating heat from the inductor (204).

6. The liquid cold plate of claim 5, wherein, The second heat dissipation channel (23) is provided with a number of third turbulence ribs (43) arranged in sections.

7. The liquid cold plate of claim 5, wherein, The second partition (32) and the third partition (33) enclose and form a third heat dissipation channel (24) for dissipating heat from the inductor (204). The turbulence structure also includes a number of fourth turbulence ribs (44) arranged in segments within the third heat dissipation channel (24).

8. The liquid cold plate of claim 2, wherein, The partition structure also includes a fourth partition (34), which forms a fourth heat dissipation channel (25) between the fourth partition (34) and the third partition (33) and between the fourth partition (34) and the frame of the cold plate body (11) for dissipating heat from the other devices (205).

9. The liquid cold plate of claim 8, wherein, The turbulence structure also includes several fifth turbulence ribs (45) evenly distributed in the fourth heat dissipation channel (25), which is connected to the liquid outlet channel (21).

10. The liquid cold plate of claim 1, wherein, The cold plate body (11) is also provided with clearance holes (50).

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