High-tightness liquid cooling plate structure

Abstract

A liquid cooling plate structure with high sealing degree relates to the technical field of liquid cooling plates, a liquid cooling structure (8) is arranged at the center of the top of a lower liquid cooling plate (4), a positioning structure (6) is arranged at the top of the lower liquid cooling plate (4) around the liquid cooling structure (8), an upper liquid cooling plate (1) covers the lower liquid cooling plate (4) by using a clamping groove (11), and the upper liquid cooling plate (1) covers the lower liquid cooling plate (4) under the separation of a corrugated plate A (801), a corrugated plate B (805) and a baffle (802). The liquid cooling groove (804) is divided into a zigzag liquid cooling channel which is through end to end; according to the liquid cooling plate structure, cooling liquid sufficiently flows along the side walls of the bent corrugated plates, the bent corrugated plates and the baffles can well increase the heat dissipation area, heat is sufficiently dissipated along with flowing of the cooling liquid, and the whole liquid cooling plate structure can conveniently have the good heat dissipation and cooling effect.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling plate technology, and in particular to a liquid cooling plate structure with high sealing performance. Background Technology

[0002] Liquid cooling plates (LCPs) are critical interfaces in liquid cooling systems, directing pumped fluid to a heat source and transferring waste heat to the coolant for further cooling. A LCP features a heat source mounting surface, internal channels for liquid flow, and inlets and outlets. Thermal engineers optimize the LCP's liquid flow path design and construction to maximize cooling within the limitations of the liquid cooling system, such as pressure drop and flow rate. LCPs can be welded using diffusion welding, vacuum brazing, or friction stir welding.

[0003] During the vacuum brazing process of liquid cooling plates, the brazing filler metal softens and flows, which may cause the welding position to shift. This could affect the sealing of the liquid cooling plate, leading to decreased heat dissipation performance, reduced equipment stability and reliability, and increased subsequent maintenance costs. Therefore, ensuring a good seal for the entire liquid cooling plate structure is a crucial issue that needs to be addressed in the design of high-sealing liquid cooling plate structures. Utility Model Content

[0004] This invention addresses the problem of potential welding position displacement and compromised sealing of liquid cooling plates during vacuum brazing, by providing a high-sealing liquid cooling plate structure.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a high-sealing liquid cooling plate structure, including an upper liquid cooling plate and a lower liquid cooling plate. A liquid cooling structure is provided at the center of the top of the lower liquid cooling plate, and a positioning structure is provided around the liquid cooling structure on the top of the lower liquid cooling plate. A snap-fit ​​groove is provided at the bottom of the upper liquid cooling plate, and the upper liquid cooling plate covers the lower liquid cooling plate using the snap-fit ​​groove. The liquid cooling structure includes a liquid cooling groove. Multiple corrugated plates A with one end connected to the side wall of the liquid cooling groove and multiple corrugated plates B with the other end connected to the other side wall of the liquid cooling groove are arranged in parallel and staggered at intervals on the bottom of the liquid cooling groove. A baffle is provided at the crest of the opposite surface of each adjacent corrugated plate A and corrugated plate B. With the separation of corrugated plates A, corrugated plates B and baffles, the liquid cooling groove is divided into a zigzag liquid cooling channel that runs from end to end.

[0007] The high-sealing liquid cooling plate structure has grooves on the top of both corrugated plate A and corrugated plate B.

[0008] The high-sealing liquid cooling plate structure includes a positioning structure comprising positioning blocks, which are equidistantly and fixedly arranged around the top of the lower liquid cooling plate surrounding the liquid cooling structure. A cross-shaped through groove is provided on the top of the positioning blocks.

[0009] The high-sealing liquid cooling plate structure has positioning grooves at the bottom of the snap-fit ​​groove and at the corresponding positions of the positioning blocks. After the upper and lower liquid cooling plates are snapped together, multiple positioning blocks are located in multiple positioning grooves.

[0010] The high-sealing liquid cooling plate structure has an annular step on the outer edge of the top of the lower liquid cooling plate.

[0011] The high-sealing liquid cooling plate structure has an outlet pipe between one end of the liquid cooling channel and the outer wall of the lower liquid cooling plate, and an inlet pipe between the other end of the liquid cooling channel and the outer wall of the lower liquid cooling plate. Baffles are provided on the outer wall of the lower liquid cooling plate between the outlet pipe and the inlet pipe and the bottom of the lower liquid cooling plate.

[0012] The high-sealing liquid cooling plate structure has U-shaped grooves on the side wall of the snap-fit ​​groove and at the corresponding positions of the liquid outlet pipe and the liquid inlet pipe. After the upper liquid cooling plate and the lower liquid cooling plate are snapped together, the liquid outlet pipe and the liquid inlet pipe are respectively located in the two U-shaped grooves.

[0013] In the high-sealing liquid cooling plate structure, the size of the snap-fit ​​groove matches the size of the lower liquid cooling plate, and the heights of corrugated plate A, corrugated plate B, and baffle are consistent with the depth of the liquid cooling groove.

[0014] The high-sealing liquid cooling plate structure has a corrugated plate C located between the last corrugated plate B and the side wall of the liquid cooling groove, with both ends fixed to the side wall of the liquid cooling groove.

[0015] The high-sealing liquid cooling plate structure has the following features: one end of corrugated plate A is clearance-fitted with the side wall of the liquid cooling groove; one end of corrugated plate B is clearance-fitted with the side wall of the liquid cooling groove; the baffle on corrugated plate A and the corresponding trough of corrugated plate B are clearance-fitted; and the baffle on corrugated plate B and the corresponding trough of corrugated plate A are clearance-fitted.

[0016] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0017] The positive and progressive effects of this utility model are as follows:

[0018] 1. The positioning block restricts the position of the upper liquid cooling plate, preventing it from shifting during brazing and affecting its sealing performance, thus reducing heat dissipation. The brazing powder in the annular step fills the gaps around the connection between the upper and lower liquid cooling plates during brazing, further ensuring the stability of the connection. At the same time, the sidewall of the upper liquid cooling plate blocks the transverse gap at the connection between the lower and upper liquid cooling plates, ensuring a good seal at the connection and facilitating a better overall sealing of the liquid cooling plate structure.

[0019] 2. In this application, coolant is introduced into the liquid-cooled groove through an inlet pipe. The corrugated plates A and B, which are set at equal intervals, allow the coolant to flow in a zigzag pattern along the gap between the two corrugated plates. The baffles allow the flowing coolant to pass well through the concave areas of the curved corrugated plates, so that the coolant can flow fully along the side wall of the curved corrugated plates. The curved corrugated plates and baffles can effectively increase the heat dissipation area. With the flow of coolant, heat dissipation is fully carried out, which makes the entire liquid-cooled plate structure have a better heat dissipation and cooling effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the lower liquid cooling plate of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the lower liquid cooling plate of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the liquid cooling plate of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the overall internal structure of this utility model;

[0025] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Upper liquid cooling plate; 2. Liquid outlet pipe; 3. Liquid inlet pipe; 4. Lower liquid cooling plate; 5. Annular step; 6. Positioning structure; 601. Positioning block; 602. Cross-shaped through groove; 7. Stop block; 8. Liquid cooling structure; 801. Corrugated plate A; 802. Baffle; 803. Groove; 804. Liquid cooling groove; 805. Corrugated plate B; 806. Corrugated plate C; 9. Positioning groove; 10. U-shaped groove; 11. Snap-fit ​​groove. Detailed Implementation

[0028] The present invention can be explained in more detail through the following embodiments. The present invention is not limited to the following embodiments. The purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention.

[0029] like Figure 1-6The high-sealing liquid cooling plate structure includes an upper liquid cooling plate 1 and a lower liquid cooling plate 4. Its characteristic is that a liquid cooling structure 8 is provided at the center of the top of the lower liquid cooling plate 4, and a positioning structure 6 is provided around the top of the liquid cooling structure 8. The positioning structure 6 includes positioning blocks 601, which are equidistantly arranged around the top of the lower liquid cooling plate 4 surrounding the liquid cooling structure 8. A cross-shaped through groove 602 is provided on the top of each positioning block 601, and positioning grooves 9 are provided at the bottom of the engaging groove 11 and at positions corresponding to the positioning blocks 601. After the upper liquid cooling plate 1 and the lower liquid cooling plate 4 are engaged, multiple positioning blocks 601 are located within multiple positioning grooves 9. The bottom of the upper liquid cooling plate 1 is provided with a snap-fit ​​groove 11. The upper liquid cooling plate 1 covers the lower liquid cooling plate 4 using the snap-fit ​​groove 11. The liquid cooling structure 8 includes a liquid cooling groove 804. On the bottom of the liquid cooling groove 804, there are multiple corrugated plates A801 ​​with one end connected to the side wall of the liquid cooling groove 804 and multiple corrugated plates B805 with the other end connected to the other side wall of the liquid cooling groove 804. At the crest of the corrugations on the opposite sides of each adjacent corrugated plate A801 ​​and corrugated plate B805, there is a baffle 802. Under the separation of corrugated plates A801, corrugated plates B805 and baffle 802, the liquid cooling groove 804 is divided into a zigzag liquid cooling channel that runs from end to end. The top of the textured plate B805 is provided with a groove 803. An annular step 5 is provided on the outer edge of the top of the lower liquid cooling plate 4. A liquid outlet pipe 2 is provided between one end of the liquid cooling channel and the outer wall of the lower liquid cooling plate 4, and a liquid inlet pipe 3 is provided between the other end of the liquid cooling channel and the outer wall of the lower liquid cooling plate 4. A stop block 7 is provided on the outer wall of the lower liquid cooling plate 4 between the liquid outlet pipe 2 and the liquid inlet pipe 3 and the bottom of the lower liquid cooling plate 4. U-shaped grooves 10 are provided on the side wall of the snap-fit ​​groove 11 at positions corresponding to the liquid outlet pipe 2 and the liquid inlet pipe 3. After the upper liquid cooling plate 1 and the lower liquid cooling plate 4 are snapped together, the liquid outlet pipe 2 and the liquid inlet pipe 3 are respectively located in the two U-shaped grooves 10. The size of the snap-fit ​​groove 11 is the same as the size of the lower liquid cooling plate 4. The heights of corrugated plates A801, B805, and baffle 802 are matched with the depth of the liquid-cooled groove 804. A corrugated plate C806 is provided between the last corrugated plate B805 and the side wall of the liquid-cooled groove 804, with both ends fixed to the side wall of the liquid-cooled groove 804. The other end of corrugated plate A801 ​​is clearance-fitted to the side wall of the liquid-cooled groove 804, one end of corrugated plate B805 is clearance-fitted to the side wall of the liquid-cooled groove 804, the baffle 802 provided on corrugated plate A801 ​​is clearance-fitted to the corresponding trough of corrugated plate B805, and the baffle 802 provided on corrugated plate B805 is clearance-fitted to the corresponding trough of corrugated plate A801.

[0030] In the manufacturing process of this utility model, brazing powder can be placed in the cross-shaped groove 602 on the top of the positioning block 601, the groove 803 on the top of the corrugated plate A801 ​​and the corrugated plate B805, and the annular step 5. The upper liquid cooling plate 1 is placed over the lower liquid cooling plate 4, and strip / foil-shaped brazing material is placed between the upper liquid cooling plate 1 and the lower liquid cooling plate 4. The positioning block 601 is engaged in the positioning groove 9. During vacuum brazing, the positioning block 601 can restrict the position of the upper liquid cooling plate 1, preventing the upper liquid cooling plate 1 from shifting during the brazing process, which would affect the sealing of the liquid cooling plate, reduce heat dissipation performance, and decrease the stability and reliability of the equipment. During the brazing process, the brazing powder can fill the gaps at the connection between the positioning block 601 and the positioning groove 9 to ensure the stability of the connection. During the brazing process, the brazing powder in the groove 803 can fill the gaps at the connection between the corrugated plate A801, the corrugated plate B805 and the upper liquid cooling plate 1 to increase the stability of the connection. During the brazing process, the brazing powder in the annular step 5 can fill the gaps at the connection between the upper liquid cooling plate 1 and the lower liquid cooling plate 4 to further ensure the stability of the connection between the upper liquid cooling plate 1 and the lower liquid cooling plate 4. At the same time, the upper liquid cooling plate 1 covers the lower liquid cooling plate 4, which better ensures the sealing effect at the connection between the upper liquid cooling plate 1 and the lower liquid cooling plate 4, thus making the entire liquid cooling plate structure have a good sealing degree.

[0031] In use, connect the liquid outlet pipe 2 to the liquid inlet of the radiator and the liquid inlet pipe 3 to the liquid outlet of the radiator. Fill the zigzag liquid cooling channel with coolant. The baffle 802 can effectively slow down the flow speed and increase the heat dissipation efficiency. The radiator is used to circulate the coolant, so as to achieve the purpose of stable operation of the zigzag liquid cooling channel without leakage.

[0032] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A high sealing degree liquid cooling plate structure comprising an upper liquid cooling plate (1) and a lower liquid cooling plate (4), characterized in that: A liquid cooling structure (8) is arranged at the center of the top of the lower liquid cooling plate (4), a positioning structure (6) is arranged around the liquid cooling structure (8) at the top of the lower liquid cooling plate (4), a clamping groove (11) is arranged at the bottom of the upper liquid cooling plate (1), the upper liquid cooling plate (1) is covered outside the lower liquid cooling plate (4) by the clamping groove (11), the liquid cooling structure (8) comprises a liquid cooling groove (804), a plurality of corrugated plates A (801) connected to one side wall of the liquid cooling groove (804) and a plurality of corrugated plates B (805) connected to the other side wall of the liquid cooling groove (804) are arranged in parallel and staggered at the groove bottom of the liquid cooling groove (804), a baffle (802) is arranged at the wave crest of the opposite surface of each adjacent corrugated plate A (801) and corrugated plate B (805), and the liquid cooling groove (804) is divided into a zigzag liquid cooling channel by the corrugated plate A (801), the corrugated plate B (805) and the baffle (802).

2. The high sealability liquid cold plate structure of claim 1, wherein: Grooves (803) are arranged at the top of the corrugated plate A (801) and the corrugated plate B (805).

3. The high sealability liquid cold plate structure of claim 1, wherein: The positioning structure (6) comprises positioning blocks (601) which are arranged equidistantly and fixedly at the top of the lower liquid cooling plate (4) around the periphery of the liquid cooling structure (8), and cross-shaped through grooves (602) are arranged at the top of the positioning blocks (601).

4. The high sealability liquid cold plate structure of claim 3, wherein: Positioning grooves (9) are arranged at positions corresponding to the groove bottom of the clamping groove (11) and the positioning blocks (601), and a plurality of positioning blocks (601) are located in a plurality of positioning grooves (9) after the upper liquid cooling plate (1) and the lower liquid cooling plate (4) are buckled.

5. The high sealability liquid cold plate structure of claim 1, wherein: An annular step (5) is arranged at the outer edge of the top of the lower liquid cooling plate (4).

6. The high sealability liquid cold plate structure of claim 1, wherein: An outflow pipe (2) is arranged between one end of the liquid cooling channel and the outer wall of the lower liquid cooling plate (4), an inflow pipe (3) is arranged between the other end of the liquid cooling channel and the outer wall of the lower liquid cooling plate (4), and a stop block (7) is arranged on the outer wall of the lower liquid cooling plate (4) between the outflow pipe (2) and the inflow pipe (3) to the bottom of the lower liquid cooling plate (4).

7. The high sealability liquid cold plate structure of claim 6, wherein: U-shaped grooves (10) are arranged at positions corresponding to the outflow pipe (2) and the inflow pipe (3) on the side wall of the clamping groove (11), and the outflow pipe (2) and the inflow pipe (3) are located in two U-shaped grooves (10) after the upper liquid cooling plate (1) and the lower liquid cooling plate (4) are buckled.

8. The high sealability liquid cold plate structure of claim 1, wherein: The size of the clamping groove (11) matches the size of the lower liquid cooling plate (4), and the height of the corrugated plate A (801), the corrugated plate B (805) and the baffle (802) is consistent with the depth of the liquid cooling groove (804).

9. The high sealability liquid cold plate structure of claim 1, wherein: A corrugated plate C (806) is arranged between the last corrugated plate B (805) and the side wall of the liquid cooling groove (804), and the two ends of the corrugated plate C (806) are fixedly connected to the side wall of the liquid cooling groove (804).

10. The high sealability liquid cold plate structure of claim 1, wherein: The other end of the corrugated plate A (801) is in clearance fit with the side wall of the liquid cooling groove (804), one end of the corrugated plate B (805) is in clearance fit with the side wall of the liquid cooling groove (804), the baffle (802) provided on the corrugated plate A (801) is in clearance fit with the corresponding valley of the corrugated plate B (805), and the baffle (802) provided on the corrugated plate B (805) is in clearance fit with the corresponding valley of the corrugated plate A (801).

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