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CN-121979369-A - Double-phase cooling plate

CN121979369ACN 121979369 ACN121979369 ACN 121979369ACN-121979369-A

Abstract

The invention provides a double-phase cooling plate which comprises a base, a flow guiding piece and an upper cover, wherein the base is provided with a plurality of fins to form a plurality of liquid cooling flow channels, the upper cover is arranged on the base and is provided with a cavity with the base, the upper cover is provided with an inlet part, an outlet part and a joint part, the inlet part and the outlet part are communicated with the cavity, the joint part is positioned between the inlet part and the outlet part, the joint part is contacted with the tops of the fins, and the flow guiding piece is arranged on the tops of the fins corresponding to the inlet part. The cooling fluid flowing into the cavity is guided and conveyed to the plurality of liquid cooling channels by the guide piece, so that the cooling fluid in the plurality of liquid cooling channels is ensured to be uniformly distributed and the back flow of bubbles is prevented.

Inventors

  • XU ZHENGHONG
  • LIN FANGZHOU
  • CHEN YUZE

Assignees

  • 奇鋐科技股份有限公司

Dates

Publication Date
20260505
Application Date
20260105

Claims (20)

  1. 1. A dual phase cooling plate comprising: The base is provided with a body and a plurality of fins, the body is provided with a heat absorption side and a heat conduction side opposite to the heat absorption side, the fins are arranged on the heat conduction side, and a plurality of liquid cooling flow channels are formed among the fins; An upper cover disposed on the base and defining a chamber with the base, the upper cover having an inlet portion communicating with the chamber, an outlet portion and a joint portion between the inlet portion and the outlet portion, the joint portion contacting the top of the fin, and And the flow guide piece is arranged on the top of the fin corresponding to the inlet part.
  2. 2. The dual-phase cooling plate of claim 1, wherein a front section, a middle section and a rear section are arranged on the top of the fin, the middle section is arranged between the front section and the rear section, the flow guide piece is arranged on the front section, and the joint part is arranged on the middle section.
  3. 3. The dual-phase cooling plate of claim 1, wherein the flow guiding member comprises a flow guiding portion and a flow guiding portion connected to the flow guiding portion, the flow guiding portion guides the cooling fluid entering the inlet portion to the flow guiding portion, and the flow guiding portion guides the cooling fluid into the plurality of liquid cooling channels.
  4. 4. The dual-phase cooling plate of claim 2, wherein the flow guiding member comprises a front baffle plate covering the front section, the front baffle plate comprises a horizontal portion covering the front section and a vertical portion extending toward the inlet.
  5. 5. The dual-phase cooling plate of claim 2, wherein the height of the front section of the top portion of the plurality of fins is less than the height of the middle section.
  6. 6. The dual-phase cooling plate of claim 2, wherein the height of the rear section of the top portion of the plurality of fins is less than the height of the middle section.
  7. 7. The dual-phase cooling plate of claim 1, further comprising: and the speed reducing piece is arranged at the inlet part.
  8. 8. The dual-phase cooling plate of claim 7, wherein the deceleration element is integrally formed with the upper cover.
  9. 9. The dual-phase cooling plate of claim 7, wherein the inlet portion has an input opening and the deceleration element has a deceleration opening, the deceleration opening having a size smaller than the input opening.
  10. 10. A dual phase cooling plate comprising: A base having a body and a plurality of fins, the body having a heat absorption side and a heat conduction side opposite to the heat absorption side, the plurality of fins being disposed on the heat conduction side and forming a plurality of liquid cooling channels therebetween, and The upper cover is arranged on the base and defines a cavity with the base, the upper cover is provided with an inlet part, an outlet part and a joint part, wherein the inlet part and the outlet part are communicated with the cavity, the joint part is contacted with the tops of the fins, and the upper cover is provided with a flow guide piece which is arranged on the tops of the fins corresponding to the inlet part.
  11. 11. The dual-phase cooling plate of claim 10, wherein a front section, a middle section and a rear section are disposed on top of the fins, the middle section is disposed between the front section and the rear section, the flow guide member is disposed on the front section, and the joint is disposed on the middle section.
  12. 12. The dual-phase cooling plate of claim 11, wherein the height of the front section of the top portion of the plurality of fins is less than the height of the middle section.
  13. 13. The dual-phase cooling plate of claim 11, wherein the height of the rear section of the top portion of the plurality of fins is less than the height of the middle section.
  14. 14. The dual-phase cooling plate of claim 10, further comprising: and the speed reducing piece is arranged at the inlet part.
  15. 15. The dual-phase cooling plate of claim 14 wherein the deceleration element is integrally formed with the upper cover.
  16. 16. The dual-phase cooling plate of claim 14, wherein the inlet portion has an input opening and the deceleration element has a deceleration opening, the deceleration opening having a size smaller than the input opening.
  17. 17. A dual phase cooling plate comprising: A base having a main body with a heat-absorbing side and a heat-conducting side opposite to the heat-absorbing side, a plurality of fins arranged on the heat-conducting side and forming a plurality of liquid cooling channels therebetween, and a flow guiding member formed on the top of the fins, and The upper cover is arranged on the base and defines a cavity with the base, the upper cover is provided with an inlet part communicated with the cavity, an outlet part and a joint part positioned between the inlet part and the outlet part, the joint part is contacted with the tops of the fins, and the inlet part corresponds to the flow guiding piece.
  18. 18. The dual-phase cooling plate of claim 17, wherein a front section, a middle section and a rear section are disposed on top of the fins, the middle section is disposed between the front section and the rear section, the flow guide member is disposed on the front section, and the joint is disposed on the middle section.
  19. 19. The dual-phase cooling plate of claim 18, wherein the height of the front section of the top portion of the plurality of fins is less than the height of the middle section.
  20. 20. The dual-phase cooling plate of claim 18, wherein the height of the rear section of the top portion of the plurality of fins is less than the height of the middle section.

Description

Double-phase cooling plate Technical Field The present invention relates to a water cooling device for electronic devices, and more particularly to a dual-phase cooling plate using a flow guiding member to help guide a cooling fluid to uniformly distribute in a liquid cooling channel. Background In electronic devices, such as servers, various electronic devices, such as a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), etc., are disposed therein, and these electronic devices generate heat during operation, so that a cooling liquid must be used for cooling, so as to avoid the problem that each electronic device fails due to overheating and thus the whole server cannot be used. However, with the rapid progress of AI technology and advanced packaging processes, the wattage of the heat source of the chip is continuously increasing, and hot spots (hot spots) are generated, so that the current mainstream single-phase liquid cooling solution cannot meet the future requirements. The two-phase evaporative cooling heat dissipation technology can meet the future heat dissipation requirement, can absorb a large amount of heat through the latent heat of evaporation (liquid to gas), and can solve the problem of high heat flux of a single area. However, because the two-phase heat dissipation technology has the interaction effect of coupling liquid and gas in the system, the problems of uneven distribution of cooling fluid and back flow of bubbles can be generated in the system. Therefore, how to solve the technical problems of uneven distribution of cooling fluid and bubble backflow in the two-phase water-cooling plate structure is a great need for research and improvement of related developers. Disclosure of Invention Therefore, in order to effectively solve the above-mentioned problems, an object of the present invention is to provide a dual-phase cooling plate capable of guiding a cooling fluid from a start end of a liquid cooling channel to be completely and uniformly distributed in the channel and avoiding occurrence of bubble backflow. The invention provides a dual-phase cooling plate, which comprises a base, an upper cover, a lower cover and a flow guiding piece, wherein the base is provided with a body and a plurality of fins, the body is provided with a heat absorption side and a heat conduction side opposite to the heat absorption side, the fins are arranged on the heat conduction side, a plurality of liquid cooling flow passages are formed among the fins, the upper cover is arranged on the base and is defined with a cavity with the base, the upper cover is provided with an inlet part, an outlet part and a joint part, the inlet part is communicated with the cavity, the joint part is positioned between the inlet part and the outlet part, the joint part is contacted with the tops of the fins, and the flow guiding piece is arranged on the tops of the fins corresponding to the inlet part. The top of the fin is provided with a front section area, a middle section area and a rear section area, the middle section area is arranged between the front section area and the rear section area, the flow guide piece is arranged on the front section area, and the joint part is arranged on the middle section area. The flow guiding piece comprises a flow guiding part and a flow guiding part connected with the flow guiding part, the flow guiding part guides the cooling fluid entering the inlet part to the flow guiding part, and the flow guiding part guides the cooling fluid into the plurality of liquid cooling flow channels. The guide piece comprises a front baffle plate which is covered on the front section area, the front baffle plate comprises a horizontal part and a vertical part, the horizontal part is covered on the front section area, and the vertical part extends towards the inlet part. Wherein the height of the front section area of the top of the fins is smaller than the height of the middle section area. Wherein the height of the rear section area of the top of the fins is smaller than the height of the middle section area. In one embodiment of the present invention, the air conditioner further comprises a speed reducer disposed at the inlet. Wherein, the speed reducing part and the upper cover are integrally formed. The inlet part is provided with an input opening, and the speed reducing piece is provided with a speed reducing opening, wherein the size of the speed reducing opening is smaller than that of the input opening. The invention provides a dual-phase cooling plate, which comprises a base, an upper cover and a lower cover, wherein the base is provided with a body and a plurality of fins, the body is provided with a heat absorption side and a heat conduction side opposite to the heat absorption side, the fins are arranged on the heat conduction side, a plurality of liquid cooling flow passages are formed among the fins, the upper cover is arranged on the base and is defined with a cavity with the