Cold plate branch shunting structure of water cooling system

Abstract

The invention provides a cold plate branch flow dividing structure of a water cooling system, which comprises a first flow dividing body, a guide body and a second flow dividing body, the first flow dividing body is provided with a water inlet flow channel and a first water outlet flow channel, a junction area is formed between the water inlet flow channel and the first water outlet flow channel, the junction area is communicated with a flow dividing channel, and the flow dividing channel is communicated with the guide body. The flow dividing channel is communicated with a guiding inlet of the guiding body, and the guiding inlet is communicated with a second water outlet flow channel of the second flow dividing body through a spiral channel. Therefore, according to the structure, when main working liquid enters the water inlet flow channel, the spiral channel is used for adjusting water to flow out to the second water outlet flow channel, then the water outlet flow of the first water outlet flow channel and the second water outlet flow channel is adjusted, the pressure drop is reduced, the optimal split flow outflow amount is achieved, and the cooling efficiency is improved.

Description

Technical Field

[0001] This invention relates to a cold plate branch flow distribution structure, and more particularly to a cold plate branch flow distribution structure for a water-cooled system that can effectively adjust flow distribution and reduce pressure drop when there are flow differences in each branch. Background Technology

[0002] As the computing power of electronic devices increases, the power of the chips inside them increases and generates a lot of heat during operation. Heat sinks or heat dissipation fins are usually installed on electronic components to increase the heat dissipation area and thus improve heat dissipation performance. However, since the heat dissipation effect achieved by heat sinks and heat dissipation fins is limited, water cooling systems have been used to improve heat dissipation performance.

[0003] In existing liquid cooling systems, due to the different cooling requirements of different areas, a manifold structure is usually used to distribute the input fluid to different channels, and then each channel delivers it to the water-cooled plates in different areas, such as the upper and lower water-cooled plates, in order to cool the heat source of the upper and lower water-cooled plates by a single input fluid. However, different areas of the water-cooled plates will have different required flow rates. For water-cooled plates that require a smaller flow rate, it is necessary to limit the flow rate by reducing the fluid outlet orifice diameter to achieve the effect of diverting and configuring the flow rate. However, reducing the fluid outlet orifice diameter will cause excessive pressure drop, making it difficult for the fluid to pass through stably, increasing system energy consumption and reducing cooling efficiency.

[0004] Therefore, how to improve the split manifold structure to simultaneously adjust the split flow rate and reduce the outlet pressure drop is the direction that the inventors of this case and related manufacturers in this industry are eager to study and improve. Summary of the Invention

[0005] Therefore, in order to effectively solve the above problems, the main objective of this invention is to provide a cold plate branch flow distribution structure for a water cooling system. This structure utilizes a spiral channel to adjust the flow distribution, so as to meet the different flow requirements of each branch, thereby adjusting the flow requirements of each branch and reducing the pressure drop, maintaining the optimal outflow and improving the cooling efficiency.

[0006] To achieve the above objectives, the present invention provides a cold plate branch flow distribution structure for a water-cooled system, characterized in that it comprises:

[0007] A first branch flow has an inlet flow channel and a first outlet flow channel, wherein a junction area is formed between the inlet flow channel and the first outlet flow channel, and the junction area is connected to at least one branch flow channel.

[0008] A guide body is assembled with the first flow divider and has a guide inlet and a spiral channel, the guide inlet connecting the flow divider channel and the spiral channel;

[0009] A second water distributor is assembled with the guide body and has a second water outlet channel. The second water outlet channel is connected to the spiral channel to extend the spiral flow field and rotational guidance through the spiral channel, so that the flow rate of the second water outlet channel is lower than that of the first water outlet channel and the pressure drop of the second water outlet channel is reduced.

[0010] The cold plate branch flow distribution structure of the water cooling system, wherein: the flow rate of the first outlet channel is greater than or equal to the sum of the flow rates of the first outlet channel and the second outlet channel.

[0011] The cold plate branch flow distribution structure of the water cooling system includes: a groove formed on the top of the guide body relative to the periphery of the guide channel, and a sealing element is provided in the groove.

[0012] The cold plate branch flow distribution structure of the water cooling system, wherein: the guide body has a guide channel, the guide channel is located between the guide inlet and the spiral channel, and one end is connected to the guide inlet and connected to the flow distribution channel through the guide inlet.

[0013] The cold plate branch flow distribution structure of the water cooling system includes a guide outlet at the other end of the guide channel, which is connected to the spiral channel.

[0014] The cold plate branch flow distribution structure of the water cooling system, wherein: the guide body forms an extension, and the spiral channel rotates around the periphery of the extension.

[0015] The cold plate branch flow distribution structure of the water cooling system, wherein: the second flow distributor has a set of grooves connecting the second water outlet channel, the guide body is provided with the set of grooves by the extension, the set of grooves closes the opening end of the spiral channel and makes the spiral channel connect to the second water outlet channel.

[0016] The cold plate branch flow distribution structure of the water cooling system includes a limiting part and a spreading part formed at the outlet of the second water outlet channel. The radius of the limiting part is smaller than the radius of the spreading part, so that when a water outlet pipe is inserted, it is guided by the spreading part and limited by the limiting part.

[0017] The cold plate branch flow distribution structure of the water cooling system is provided in a water cooling system, which includes an upper cold plate and a lower cold plate. The first water outlet channel is connected to the upper cold plate via a first water outlet pipe, and the second water outlet channel is connected to the lower cold plate via a second water outlet pipe.

[0018] A cold plate branch flow distribution structure for a water-cooled system, characterized in that it includes:

[0019] A first flow divider has an inlet channel and a first outlet channel, and a junction area is formed between the inlet channel and the first outlet channel. The junction area is connected to at least one flow divider channel, which is a spiral channel.

[0020] A second flow divider is configured with the first flow divider and has a second water outlet channel. The second water outlet channel is connected to the spiral-shaped flow divider channel to extend the spiral flow field and rotate the flow through the spiral channel, so that the flow rate of the second water outlet channel is lower than that of the first water outlet channel and the pressure drop of the second water outlet channel is reduced.

[0021] The cold plate branch flow distribution structure of the water cooling system, wherein: the flow rate of the first outlet channel is greater than or equal to the sum of the flow rates of the first outlet channel and the second outlet channel.

[0022] The cold plate branch flow distribution structure of the water cooling system includes a limiting part and a spreading part formed at the outlet of the second water outlet channel. The radius of the limiting part is smaller than the radius of the spreading part, so that when a water outlet pipe is inserted, it is guided by the spreading part and limited by the limiting part.

[0023] The cold plate branch flow distribution structure of the water cooling system is provided in a water cooling system, which includes an upper cold plate and a lower cold plate. The first water outlet channel is connected to the upper cold plate via a first water outlet pipe, and the second water outlet channel is connected to the lower cold plate via a second water outlet pipe.

[0024] This invention enables the cold plate branch flow distribution structure of the water cooling system to adjust the water flow rate of the first and second water outlet channels, while simultaneously reducing the pressure drop of the second water outlet channel. This allows for the adjustment of the flow rate requirements of each branch and the reduction of the pressure drop, maintaining optimal outflow and improving cooling efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional assembly diagram of the present invention.

[0026] Figure 2A This is a three-dimensional exploded view of the present invention.

[0027] Figure 2B This is a three-dimensional exploded view of the present invention from another perspective.

[0028] Figure 3 This is a schematic cross-sectional view of the present invention.

[0029] Figure 4 This is a cross-sectional view of the present invention from another angle.

[0030] Figure 5 This is a schematic diagram illustrating the process of the main working fluid entering the first fluid separator of the present invention.

[0031] Figure 6 This is a schematic diagram illustrating the implementation of the present invention where the diverting working liquid enters the second diverting fluid.

[0032] Figure 7 This is a schematic diagram illustrating the implementation of the water-cooling system of the present invention.

[0033] Figure 8 This is a schematic diagram illustrating another aspect of the implementation of the water-cooling system of the present invention.

[0034] Explanation of reference numerals in the attached drawings: 1. Cold plate branch flow distribution structure of the water cooling system; 2. First branch flow; 21. Inlet channel; 211. Merging area; 22. First outlet channel; 221. Branch channel; 23. Second branch flow; 31. Second outlet channel; 311. Limiting part; 312. Second outlet pipe; 313. Grouping groove; 5. Guide body; 51. Guide inlet; 52. Guide channel; 53. Guide outlet; 54. Extension; 55. Spiral channel; 56. Groove; 561. Seal; 6. Water cooling system; 61. Upper cold plate; 62. Lower cold plate; 7. Main board. Detailed Implementation

[0035] The above-mentioned objectives of the present invention and its structural and functional characteristics will be described with reference to the preferred embodiments shown in the accompanying drawings.

[0036] Please see Figure 1 , Figure 2A , Figure 2B , Figure 3 , Figure 4 As shown, these are respectively a three-dimensional combined schematic diagram, a three-dimensional exploded schematic diagram, a three-dimensional exploded schematic diagram from another angle, a combined sectional view schematic diagram, and a combined sectional view schematic diagram from another angle. As shown in the figure, the present invention provides a cold plate branch flow distribution structure 1 for a water cooling system, including: a first flow distribution 2 and a second flow distribution 3.

[0037] The first water distribution channel 2 has an inlet channel 21 and a first outlet channel 22. The inlet channel 21 is formed at one end (side) of the first water distribution channel 2, and the first outlet channel 22 is formed at the other end (side) of the first water distribution channel 2 opposite to the inlet channel 21. A junction area 211 is formed between the inlet channel 21 and the first outlet channel 22. The junction area 211 is the area where the inlet channel 21 and the first outlet channel 22 meet (bound). The inlet channel 21 is connected to the first outlet channel 22 through the junction area 211. The first water distribution channel 2 branches off from the junction area 211 at least one branch channel 23. The branch channel 23 is formed at the center of the first water distribution channel 2 (i.e., the inlet channel 21, the first outlet channel 22, and the branch channel 23 form a Y-shape) and is connected to the junction area 211.

[0038] The first distributor 2 has a spiral channel 23, which can be defined by the first distributor 2 and the second distributor 3 when they are assembled. The spiral channel 23 can be formed inside the first distributor 2 or extend out of the first distributor 2 so that the second distributor 3 is assembled with the first distributor 2. A second outlet channel 31 is formed on one side (which can be opposite to the first outlet channel 22), and the second outlet channel 31 is connected to the spiral channel 23.

[0039] Specifically, the first distributor 2 and the second distributor 3 may optionally include a guide body 5. The guide body 5 is integrally formed with the first distributor 2, or the guide body 5 is a separate component from the first distributor 2 and the second distributor 3, for connection with them (as illustrated in this embodiment). The guide body 5 has a guide inlet 51 that connects to the distributor channel 23. Furthermore, in this embodiment, the guide body 5 may optionally have a guide channel 52, one end of which connects to the guide inlet 51, and the other end forms a guide outlet 53. The distributor channel 23 connects to the guide channel 52 via the guide inlet 51, and then connects to the guide outlet 53 via the guide channel 52. The guide body 5 has an extension 54 extending outwards, and a spiral channel 55 is formed on the outer periphery of the extension 54. The spiral channel 55 is spirally wound around the extension 54 from top to bottom. The width and length of the spiral channel 55 are determined according to the water flow adjustment. The guide channel 52 is connected to the spiral channel 55 through the guide outlet 53. The guide body 5 has a groove 56 formed on the surface opposite to the guide inlet 51. The groove 56 surrounds the guide inlet 51, and a sealing element 561 is provided in the groove 56.

[0040] The second water distributor 3 is assembled with the guide body 5, and a set of grooves 32 is formed at the position opposite to the extension 34. A second water outlet channel 31 is formed on one side (opposite to the first water outlet channel 22), and the second water outlet channel 31 connects to the set of grooves 32. The guide body 5 assembles the extension 54 within the set of grooves 32, which closes the spiral channel 55 and connects the spiral channel 55 to the second water outlet channel 31. In this embodiment, one end of the spiral channel 55 connects to the guide outlet 53 of the guide body 5, and the other end connects to the second water outlet channel 31. Furthermore, the orifice diameter of the second water outlet channel 31 is smaller than the orifice diameter of the first water outlet channel 22 according to the flow rate. A limiting portion 311 and a spreading portion 312 are formed at the outlet of the second water outlet channel 31, and the radius of the limiting portion 311 is smaller than the radius of the spreading portion 312.

[0041] Please see Figure 5 , Figure 6 , Figure 7 , Figure 8 The diagrams shown are schematic diagrams of the main working liquid entering the first distributor 2 and the second distributor 3, and connecting to the water cooling system, respectively, and another schematic diagram from a different angle. The main working liquid enters the first distributor 2 through the inlet channel 21. Upon entering the first distributor 2, the main working liquid first flows to the junction area 211, where it is then diverted to the distribution channel 23 and continues to flow to the first outlet channel 22. The diverted working liquid in the first outlet channel 22 is then sent to an upper cooling plate 61 of a water cooling system 6 through a first outlet pipe 221. This upper cooling plate 61 corresponds to the core chip such as the GPU, CPU, or TPU above the motherboard 7. Because the heat generation of this core chip is most concentrated and highest, a high-flow-rate first outlet channel 22 is required. Furthermore, the diverted working liquid to the distribution channel 23 enters the guide channel 52 through the guide inlet 51, flows out through the guide outlet 53, and then enters the spiral channel 55. The diverted working fluid entering the spiral channel 55 flows spirally along the spiral channel 55 and flows out towards the second outlet channel 31. The spiral channel 55 generates a swirling effect in the diverted working fluid and prolongs its spiral flow field, thereby controlling the flow rate of the diverted working fluid sent to the second outlet channel 31 through the spiral channel 55 to be less than that of the first outlet channel 22, and reducing the pressure drop in the second outlet channel 31. The diverted working liquid from the second water outlet channel 31 is sent to the lower cooling plate 62 of the water cooling system 6. The second water outlet channel 31 is connected to a second water outlet pipe 313 by the limiting part 311 and the extension part 312. The second water outlet pipe 313 is introduced by the extension part 312 and limited by the limiting part 311, so that the second water outlet pipe 313 can be welded and fixed to the extension part 312, and the diverted working liquid from the second water outlet channel 31 is successfully sent to the lower cooling plate 62. The lower cooling plate 62 corresponds to the electronic components with low heat generation below the main board 7, so the second water outlet channel 31 with a smaller flow rate is used to achieve the purpose of diverting and regulating the flow rate.

[0042] In this way, the cold plate branch diversion structure 1 of the water cooling system of the present invention diverts the working liquid through the guide body 5, and adjusts the flow rate of the diverted working liquid and reduces the pressure drop sent to the second outlet channel 31 by the setting of the spiral channel 55, so as to realize the adjustment of the flow demand of each branch and reduce the pressure drop, maintain the optimal outflow and improve the cooling efficiency.

[0043] As described above, the present invention has the following advantages over the prior art:

[0044] 1. By ensuring that the flow rate of the first outlet channel 22 is greater than or equal to the combined flow rates of the first and second outlet channels 22 and 31, and by controlling the flow rate of the diverted working liquid sent to the second outlet channel 31 through the spiral channel 55 to be less than that of the first outlet channel 22, a large-diameter inlet is formed into a small-diameter outlet, thereby achieving the purpose of diversion to regulate the flow demand of each branch.

[0045] 2. It can solve the pressure drop problem caused by the reduction in the outlet aperture.

[0046] 3. Maintain optimal outflow and improve cooling efficiency.

Claims

1. A cold plate branch shunt structure of a water cooling system, characterized in that, The first flow body has an inlet flow channel and a first outlet flow channel, and a junction area is formed between the inlet flow channel and the first outlet flow channel, and the junction area is communicated with at least one flow channel. The guide body is arranged with the first flow body, and has a guide inlet and a spiral channel, and the guide inlet is communicated with the flow channel and the spiral channel. The second flow body is arranged with the guide body, and has a second outlet flow channel, and the second outlet flow channel is communicated with the spiral channel, so that the spiral flow field is extended and the rotational flow is guided by the spiral channel, the flow of the second outlet flow channel is lower than that of the first outlet flow channel, and the pressure drop of the second outlet flow channel is reduced. The flow of the first outlet flow channel is greater than or equal to the total flow of the first outlet flow channel and the second outlet flow channel.

2. The cold plate branch shunt structure of a water cooling system of claim 1, wherein: A groove is formed at the top of the guide body relative to the periphery of the guide channel, and a sealing element is arranged in the groove.

3. The cold plate branch shunt structure of a water cooling system of claim 1, wherein: The guide body has a guide channel between the guide inlet and the spiral channel, and one end of the guide channel is communicated with the guide inlet and communicated with the flow channel through the guide inlet.

4. The cold plate branch shunt structure of a water cooling system of claim 1, wherein: The other end of the guide channel forms a guide outlet communicated with the spiral channel.

5. The cold plate branch shunt structure of a water cooling system of claim 4, wherein: The guide body forms an extension part, and the spiral channel winds around the periphery of the extension part.

6. The cold plate branch shunt structure of a water cooling system of claim 1, wherein: The second flow body has a group of grooves communicated with the second outlet flow channel, and the guide body is arranged with the extension part and the group of grooves, and the group of grooves enclose the open end of the spiral channel and make the spiral channel communicated with the second outlet flow channel.

7. The cold plate branch shunt structure of a water cooling system of claim 5, wherein: A limiting part and an expanding part are formed at the outlet of the second outlet flow channel, the radius of the limiting part is smaller than that of the expanding part, so that when a water outlet pipe is inserted, the water outlet pipe is guided by the expanding part and limited by the limiting part.

8. The cold plate branch shunt structure of a water cooling system of claim 1, wherein: The cold plate branch flow structure is arranged in a water cooling system, and the water cooling system includes an upper cold plate and a lower cold plate, the first outlet flow channel is communicated with the upper cold plate through a first water outlet pipe, and the second outlet flow channel is communicated with the lower cold plate through a second water outlet pipe.

9. The cold plate branch shunt structure of a water cooling system of claim 1, wherein: The first flow body has an inlet flow channel and a first outlet flow channel, and a junction area is formed between the inlet flow channel and the first outlet flow channel, and the junction area is communicated with at least one flow channel.

10. A cold plate branch shunt structure of a water cooling system, characterized in that, The guide body is arranged with the first flow body, and has a guide inlet and a spiral channel, and the guide inlet is communicated with the flow channel and the spiral channel. The second flow body is arranged with the guide body, and has a second outlet flow channel, and the second outlet flow channel is communicated with the spiral channel, so that the spiral flow field is extended and the rotational flow is guided by the spiral channel, the flow of the second outlet flow channel is lower than that of the first outlet flow channel, and the pressure drop of the second outlet flow channel is reduced. The flow of the first outlet flow channel is greater than or equal to the total flow of the first outlet flow channel and the second outlet flow channel.

11. The cold plate branch shunt structure of a water cooling system of claim 10, wherein: A limiting part and an expanding part are formed at the outlet of the second outlet flow channel, the radius of the limiting part is smaller than that of the expanding part, so that when a water outlet pipe is inserted, the water outlet pipe is guided by the expanding part and limited by the limiting part.

12. The cold plate branch shunt structure of a water cooling system of claim 10, wherein: The cold plate branch flow structure is arranged in a water cooling system, and the water cooling system includes an upper cold plate and a lower cold plate, the first outlet flow channel is communicated with the upper cold plate through a first water outlet pipe, and the second outlet flow channel is communicated with the lower cold plate through a second water outlet pipe.

13. The cold plate branch shunt structure of the water cooling system of claim 10, wherein: ​

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