A three-dimensional pulsating temperature-equalizing liquid cold plate and its heat dissipation method

Abstract

The present invention relates to a three-dimensional pulsating temperature-averaging liquid cooling plate, which belongs to the field of heat dissipation technology and includes a temperature-averaging liquid cooling plate body, a cover plate fixed to the bottom of the temperature-averaging liquid cooling plate body, and the temperature-averaging liquid cooling plate body includes a connecting plate, a linking plate, a top plate and a refrigerant, the connecting plate is fixed to the cover plate, the top of the connecting plate is fixed to the linking plate, the top of the linking plate is fixed to the top plate, and the tops of the connecting plate and the linking plate are both provided with guide grooves. The three-dimensional pulsating temperature-averaging liquid cooling plate and its heat dissipation method, the set fixing assembly can conveniently fix the temperature-averaging liquid cooling plate body and the cover plate, so that the temperature-averaging liquid cooling plate body and the cover plate fit tightly, so that the heat of the temperature-averaging liquid cooling plate body can be quickly transferred to the cover plate, facilitating heat transfer, and the set fixing assembly allows the temperature-averaging liquid cooling plate body and the cover plate to be disassembled, so that when the temperature-averaging liquid cooling plate body is damaged, there is no need to replace the entire body.

Description

Technical Field

[0001] The present invention relates to the field of heat dissipation technology, and in particular to a three-dimensional pulsating temperature-equalizing liquid cooling plate and a heat dissipation method thereof. Background Art

[0002] The copper tube water-cooled plate is a common radiator at present. Its basic structure is that a groove is opened on one side of the base plate, and a copper tube is arranged in the groove. Cooling water or other cooling medium flows inside the copper tube. The base plate is made of heat-conducting material and contacts the object to be cooled. The heat of the object to be cooled is transferred to the base plate, copper tube and cooling medium in turn. As the cooling medium flows, the object to be cooled is carried away, thereby achieving heat dissipation.

[0003] In order to improve the heat dissipation efficiency, for example, the Chinese invention patent with announcement number CN112599888A discloses a battery thermal management system and temperature control method based on the combination of a flat-plate pulsating heat pipe and a liquid cooling system, which relates to the technical field of electric vehicle battery thermal management systems. The flat-plate pulsating heat pipe and the liquid cooling system are used in combination to give full play to the temperature uniformity performance of the flat-plate pulsating heat pipe, delay the start-up time of the coolant pump, and reduce the maximum temperature difference of the entire battery module. The flat-plate pulsating heat pipe and the liquid cooling channel plate are arranged vertically and staggered, so that the temperature difference between the theoretical evaporation end and the theoretical condensation end of the pulsating heat pipe is more obvious, thereby enhancing the starting performance of the pulsating heat pipe. Compared with the traditional liquid cooling system, this invention can reduce the energy consumption of the liquid cooling system, make the temperature difference between the inlet and outlet of the liquid cooling system similar, enhance the overall heat exchange coefficient of the liquid cooling system, achieve faster cooling effect on the battery module, and extend the service life of the battery.

[0004] However, there are still some problems. Although the flat-plate pulsating heat pipe and the liquid cooling system can be used in combination to give full play to the temperature equalization performance of the flat-plate pulsating heat pipe and make the temperature difference at the inlet and outlet of the liquid cooling system similar, the overall structure is too simple. The flat-plate pulsating heat pipe and the liquid cooling system are fixed as one. When the flat-plate pulsating heat pipe is damaged by dry burning, the whole needs to be replaced, and the working fluid filling port is welded, and the refrigerant cannot be replenished subsequently, which is inconvenient. Therefore, a three-dimensional pulsating temperature equalizing liquid cooling plate and its heat dissipation method are proposed to solve the above problems. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a three-dimensional pulsating temperature-equalizing liquid cold plate and its heat dissipation method, which have the advantages of easy installation and disassembly, and solve the problem of needing to replace the entire flat-plate pulsating heat pipe when it is damaged by dry burning.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a three-dimensional pulsating temperature-averaging liquid cold plate, comprising a temperature-averaging liquid cold plate body, a cover plate fixed to the bottom of the temperature-averaging liquid cold plate body, the temperature-averaging liquid cold plate body comprising a connecting plate, a linking plate, a top plate, and a refrigerant, the connecting plate being fixed to the cover plate, the top of the connecting plate being fixed to the linking plate, the top of the linking plate being fixed to the top plate, the tops of the connecting plate and the linking plate both being provided with guide grooves, the refrigerant being located inside the guide grooves;

[0007] A mounting plate is fixed to the bottom of the cover plate, a water inlet pipe is fixed to the back of the mounting plate, a water outlet pipe is fixed to the back of the mounting plate, connecting blocks are fixed to the left and right sides of the mounting plate, and connecting blocks are fixed to the left and right sides of the temperature balancing liquid cooling plate body, a fixing component that passes through the inside of the connecting block is provided inside the connecting block, the fixing component is used to fix the temperature balancing liquid cooling plate body and the mounting plate, and a sealing component is fixed to the right side of the temperature balancing liquid cooling plate body, and the sealing component is used to improve the sealing performance of the temperature balancing liquid cooling plate body as a whole;

[0008] The fixing assembly includes a threaded telescopic rod, a fixing plate, a fixing spring and a limit plate. The threaded telescopic rod is slidably connected to the inside of the connecting block, the outer surface of the threaded telescopic rod is fixed to the fixing plate, the bottom of the fixing plate is fixed to the fixing spring, the bottom of the fixing spring is fixed to the connecting block, the threaded telescopic rod passes through the inside of the connecting block, and the top of the threaded telescopic rod is rotatably connected to the limit plate.

[0009] Furthermore, the threaded telescopic rod includes an extension block slidably connected to the connecting block, the internal thread of the extension block is connected to the extension rod rotatably connected to the limiting plate, and the fixing plate is fixed to the extension block.

[0010] Furthermore, a fixed bearing is fixed to the bottom of the limiting plate, and the interior of the fixed bearing is fixed to the extension rod.

[0011] Furthermore, a through hole adapted to the threaded telescopic rod is provided inside the connecting block, the limiting plate is a rectangular plate, and a limiting hole communicating with the through hole and adapted to the limiting plate is provided inside the connecting block.

[0012] Furthermore, a sponge pad is fixed to the bottom of the limiting plate, and a friction disk is fixed to the top of the connecting block.

[0013] Furthermore, a control block is fixed to the bottom of the threaded telescopic rod, a friction strip is fixed to the outer surface of the control block, a sliding block is fixed to the outer surface of the threaded telescopic rod, and a sliding groove is provided inside the connecting block for sliding connection with the sliding block.

[0014] Furthermore, the sealing assembly includes a connecting pipe, a sealing block, a sealing cover, a positioning block and two positioning assemblies, the connecting pipe is fixed to the connecting plate, the connecting pipe is connected to the guide groove, the outer surface of the connecting plate is fixed to the sealing block, the outer surface of the connecting plate is threadedly connected to the sealing cover, the outer surface of the sealing cover is fixed to the positioning block, and the positioning assembly is slidably connected to the sealing block.

[0015] Furthermore, the positioning assembly includes a positioning rod, a positioning plate and a positioning spring. The positioning rod is slidably connected to the sealing block, the positioning rod is plugged into the positioning block, the positioning rod is fixed to the positioning plate, and the positioning plate and the sealing block are fixed with the positioning spring.

[0016] Furthermore, a sealing gasket is fixed on the left side of the sealing cover, a sealing groove adapted to the sealing gasket is opened on the right side of the sealing block, an inclined surface is provided on the left side of the positioning rod, and identification plates are fixed on the front of the connecting pipe and the sealing cover.

[0017] A heat dissipation method for a three-dimensional pulsating temperature-equalizing liquid cold plate comprises the following steps:

[0018] 1) When the top of the top plate is heated, nucleate boiling occurs on the inner wall of the heating section of the guide groove, generating small bubbles. The internal pressure of the bubbles increases due to the increase in the temperature of the heating section. The pressure drives the bubbles to move toward the cooling section. During the movement, the gas plug merges and the liquid plug splits.

[0019] 2) In the cooling section, the refrigerant releases heat to the environment, and the bubbles rising to the cooling section of the guide groove undergo phase change heat transfer, changing from gas to liquid. Due to the high density of the liquid, the liquid in the cooling section tends to move toward the heating section;

[0020] 3) In this way, a pressure difference is formed between the cooling section and the heating section of the temperature-averaging liquid cold plate body, driving the refrigerant in the temperature-averaging liquid cold plate body to move back and forth between the heating section and the cooling section. Heat is transferred from the heating section to the cooling section, achieving heat transfer and ensuring temperature balance.

[0021] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0022] 1. The three-dimensional pulsating temperature-averaging liquid cold plate and its heat dissipation method can conveniently fix the temperature-averaging liquid cold plate body and the cover plate through the provided fixing assembly, so that the temperature-averaging liquid cold plate body and the cover plate fit tightly together, thereby allowing the heat of the temperature-averaging liquid cold plate body to be quickly transferred to the cover plate, facilitating heat transfer. In addition, the provided fixing assembly allows the temperature-averaging liquid cold plate body and the cover plate to be disassembled, so that when the temperature-averaging liquid cold plate body or the cover plate is damaged, there is no need to replace the entire body.

[0023] 2. The three-dimensional pulsating temperature-equalizing liquid cold plate and its heat dissipation method, through the provision of a sealing component, make it more convenient to add refrigerant to the guide groove inside the temperature-equalizing liquid cold plate body, and the provision of the sealing component can effectively ensure the sealing of the guide groove, making it difficult for the refrigerant to leak, thereby making the overall system more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a three-dimensional diagram of the main structure of the temperature-uniform liquid cooling plate of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the fixing assembly of the present invention;

[0027] Figure 4 This is a schematic structural diagram of the sealing assembly of the present invention;

[0028] Figure 5 This is a three-dimensional diagram of the connection structure between the connecting pipe and the sealing block of the present invention;

[0029] Figure 6 For the present invention Figure 4 A magnified view of the structure at center A.

[0030] In the figure: 1. Temperature averaging liquid cold plate body, 101. Connecting plate, 102. Connecting plate, 103. Top plate, 104. Guide groove, 105. Refrigerant, 2. Cover plate, 3. Mounting plate, 4. Water inlet pipe, 5. Water outlet pipe, 6. Connecting block, 7. Connecting block, 8. Fixing assembly, 801. Threaded telescopic rod, 802. Fixing plate, 803. Fixing spring, 804. Limiting plate, 805. Fixed bearing, 806. Control block, 9. Sealing assembly, 901. Connecting pipe, 902. Sealing block, 903. Sealing cover, 904. Positioning block, 905. Positioning assembly, 9051. Positioning rod, 9052. Positioning plate, 9053. Positioning spring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0032] See also Figure 1-2 and Figure 4-6In this embodiment, a three-dimensional pulsating temperature-averaging liquid cooling plate includes a temperature-averaging liquid cooling plate body 1, a cover plate 2 is fixed to the bottom of the temperature-averaging liquid cooling plate body 1, and the temperature-averaging liquid cooling plate body 1 includes a connecting plate 101, a connecting plate 102, a top plate 103 and a refrigerant 105. The connecting plate 101 is fixed to the cover plate 2, the top of the connecting plate 101 is fixed to the connecting plate 102, and the top of the connecting plate 102 is fixed to the top plate 103. The tops of the connecting plates 101 and 102 are both provided with guide grooves 104. The interior of the connecting plate 102 is provided with two guide grooves 104 that are connected to the guide grooves. The connecting holes connected to the groove 104, the two connecting holes connect the guide groove 104 on the connecting plate 101 with the guide groove 104 on the connecting plate 102, which can effectively improve the heat equalization efficiency. The connecting plate 101, the connecting plate 102 and the top plate 103 are all composite metal plates. The guide groove 104 is made by CNC processing, and the composite metal plate is fixed by diffusion welding. The multi-layer structure can improve the flow channel coverage. The refrigerant 105 is located inside the guide groove 104, and the set refrigerant 105 is 134A refrigerant 105 or 1233ZD refrigerant 105.

[0033] In addition, a mounting plate 3 is fixed to the bottom of the cover plate 2, and a serpentine cooling groove is opened on the top of the mounting plate 3. The mounting plate 3 is sealed with the cover plate 2 so that the cooling water can flow inside the serpentine cooling groove to cool the temperature-averaging liquid cooling plate body 1. A water inlet pipe 4 is fixed to the back of the mounting plate 3, and a water outlet pipe 5 is fixed to the back of the mounting plate 3. The water outlet pipe 5 and the water inlet pipe 4 are connected to the external refrigerator, so that the cooling water with a lower temperature can flow to the inside of the mounting plate 3. Connecting blocks 6 are fixed on the left and right sides of the mounting plate 3, and connecting blocks 7 are fixed on the left and right sides of the temperature-averaging liquid cooling plate body 1. The interior of the connecting block 6 is provided with a A fixing component 8 is provided that passes through the interior of the connecting block 7. The fixing component 8 is used to fix the temperature-averaging liquid cooling plate body 1 and the mounting plate 3. A sealing component 9 is fixed to the right side of the temperature-averaging liquid cooling plate body 1. The sealing component 9 is used to improve the overall sealing of the temperature-averaging liquid cooling plate body 1. The sealing component 9 includes a connecting pipe 901, a sealing block 902, a sealing cover 903, a positioning block 904 and two positioning components 905. The connecting pipe 901 is fixed to the connecting plate 101, and the connecting pipe 901 is connected to the guide groove 104, so that the refrigerant 105 can be added to the inside of the guide groove 104 through the connecting pipe 901.

[0034] Furthermore, the outer surface of the connecting plate 101 is fixed to the sealing block 902, and the outer surface of the connecting plate 101 is threadedly connected to the sealing cover 903. The threaded connection is a sealing threaded connection with a certain sealing performance. The outer surface of the sealing cover 903 is fixed to the positioning block 904. The positioning assembly 905 is slidably connected to the sealing block 902. The positioning assembly 905 includes a positioning rod 9051, a positioning plate 9052 and a positioning spring 9053. The positioning rod 9051 is slidably connected to the sealing block 902. The positioning rod 9051 is slidably connected to the sealing block 902. The positioning block 904 is plugged in. When the positioning rod 9051 is plugged in to the positioning block 904, the rotation of the sealing cover 903 can be restricted. The positioning rod 9051 is fixed to the positioning plate 9052. The positioning plate 9052 and the sealing block 902 are fixed with the positioning spring 9053. A sealing gasket is fixed on the left side of the sealing cover 903. A sealing groove adapted to the sealing gasket is provided on the right side of the sealing block 902. The sealing gasket and the sealing groove can effectively improve the sealing performance of the connection between the sealing block 902 and the sealing cover 903.

[0035] In addition, an inclined surface is provided on the left side of the positioning rod 9051. Through the inclined surface, when the sealing cover 903 moves to the left, it will contact the inclined surface, thereby squeezing the positioning rod 9051. The front of the connecting tube 901 and the sealing cover 903 are fixed with identification plates. The identification plates are set so that when the sealing cover 903 is tightly fitted with the sealing block 902, the sealing cover 903 can move to a point where it can be plugged into the positioning rod 9051.

[0036] In general, by aligning the identification plate on the sealing cover 903 with the identification plate on the connecting pipe 901 and starting the threaded connection, the sealing cover 903 can be rotated and moved until it fits tightly with the sealing block 902. The positioning rod 9051 can be plugged into the sealing cover 903, thereby effectively preventing the sealing cover 903 from moving.

[0037] See also Figure 3 The fixing assembly 8 in this embodiment includes a threaded telescopic rod 801, a fixing plate 802, a fixing spring 803 and a limit plate 804. The threaded telescopic rod 801 is slidably connected to the inside of the connecting block 6. A control block 806 is fixed to the bottom of the threaded telescopic rod 801. A friction strip is fixed to the outer surface of the control block 806. A sliding block is fixed to the outer surface of the threaded telescopic rod 801. A sliding groove is provided inside the connecting block 6 to be slidably connected to the sliding block. The provision of the sliding block and the sliding groove makes the movement of the threaded telescopic rod 801 more stable and prevents the extension block from rotating.

[0038] It should be noted that the threaded telescopic rod 801 includes an extension block slidably connected to the connecting block 6, the internal thread of the extension block is connected to the extension rod rotatably connected to the limit plate 804, the fixed plate 802 is fixed to the extension block, the outer surface of the threaded telescopic rod 801 is fixed to the fixed plate 802, the bottom of the fixed plate 802 is fixed to the fixed spring 803, the bottom of the fixed spring 803 is fixed to the connecting block 6, the threaded telescopic rod 801 passes through the interior of the connecting block 7, the top of the threaded telescopic rod 801 is rotatably connected to the limit plate 804, the bottom of the limit plate 804 is fixed with a fixed bearing 805, the interior of the fixed bearing 805 is fixed to the extension rod, and the limit plate 804 can be rotated by the provision of the fixed bearing 805.

[0039] It should be added that a through hole is provided inside the connecting block 7 and is compatible with the threaded telescopic rod 801. The limiting plate 804 is a rectangular plate. A limiting hole is provided inside the connecting block 7 and is connected to the through hole and is compatible with the limiting plate 804. The limiting plate 804 can pass through the connecting block 7 through the limiting hole. When the limiting plate 804 rotates, it will be staggered with the limiting hole, thereby making it impossible for the limiting plate 804 to pass through the connecting block 7. A sponge pad is fixed to the bottom of the limiting plate 804, and a friction disk is fixed to the top of the connecting block 7. The sponge pad and the friction disk can effectively improve the friction between the connecting block 7 and the limiting plate 804.

[0040] In general, after the fixing component 8 is fixed, the extension rod can be rotated by rotating the control block 806, and then the extension rod can be moved due to the extrusion of the thread, thereby adjusting the distance between the fixing plate 802 and the limit plate 804, so that the elastic potential energy of the fixing spring 803 can be adjusted, thereby ensuring the stability of the fixation.

[0041] A heat dissipation method for a three-dimensional pulsating temperature-equalizing liquid cold plate comprises the following steps:

[0042] 1) When the top of the top plate 103 is heated, nucleate boiling occurs on the inner wall of the heating section of the guide groove 104, generating small bubbles. The pressure inside the bubbles increases due to the increase in the temperature of the heating section. The pressure drives the bubbles to move toward the cooling section. During this movement, gas plugs merge and liquid plugs split.

[0043] 2) In the cooling section, the refrigerant 105 releases heat to the environment. The bubbles rising to the cooling section of the guide groove 104 undergo phase change heat transfer, changing from gas to liquid. Due to the high density of the liquid, the liquid in the cooling section tends to move toward the heating section.

[0044] 3) In this way, a pressure difference is formed between the cooling section and the heating section of the temperature-averaging liquid cold plate body 1, driving the refrigerant 105 in the temperature-averaging liquid cold plate body 1 to reciprocate between the heating section and the cooling section. Heat is transferred from the heating section to the cooling section, realizing heat transfer and ensuring temperature balance.

[0045] The working principle of the above embodiment is:

[0046] (1) When the temperature-averaging liquid cooling plate body 1 needs to be installed, the threaded telescopic rod 801 can be pushed to drive the limit plate 804 through the through hole and the limit hole through the connecting block 7, so that the limit plate 804 moves to the top of the connecting block 7. At this time, the limit plate 804 can be pushed to rotate so that the limit plate 804 and the limit hole are staggered. When the threaded telescopic rod 801 moves, the fixed plate 802 pulls the fixed spring 803, so that the fixed spring 803 accumulates elastic potential energy. When the threaded telescopic rod 801 is loosened, the elastic potential energy accumulated by the fixing spring 803 will pull the threaded telescopic rod 801 to reset, and the set limit plate 804 cannot pass through the connecting block 7, and then the elastic force of the fixing spring 803 will pull the connecting block 7 to move toward the connecting block 6, thereby fixing the temperature uniform liquid cooling plate body 1 and the mounting plate 3, and ensuring the tightness of the contact between the temperature uniform liquid cooling plate body 1 and the cover plate 2, making the whole easy to disassemble while effectively ensuring the heat dissipation efficiency and making the whole more durable.

[0047] (2) After the sealing cover 903 is aligned with the identification plate on the connecting pipe 901, the sealing cover 903 can be threadedly connected to the connecting pipe 901 and moved by rotating the sealing cover 903, so that the sealing cover 903 moves to the inside of the sealing block 902 and contacts the inclined surface on the positioning rod 9051, thereby squeezing the positioning rod 9051 and moving the positioning rod 9051 toward the outside of the sealing block 902. When the sealing cover 903 moves to a position that matches the positioning rod 9051, the positioning spring 9053 resets the positioning rod 9051, and then the positioning rod 9051 is inserted into the interior of the sealing cover 903, fixing the sealing cover 903, and making the sealing cover 903 unable to move, thereby effectively ensuring the sealing of the connecting pipe 901, making the whole more durable.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0049] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A three-dimensional pulsating temperature-equalizing liquid cooling plate, comprising a temperature-equalizing liquid cooling plate body (1), characterized in that: A cover plate (2) is fixed to the bottom of the temperature-averaging liquid cooling plate body (1), and the temperature-averaging liquid cooling plate body (1) includes a connecting plate (101), a connecting plate (102), a top plate (103) and a refrigerant (105), wherein the connecting plate (101) is fixed to the cover plate (2), the top of the connecting plate (101) is fixed to the connecting plate (102), and the top of the connecting plate (102) is fixed to the top plate (103), and the tops of the connecting plate (101) and the connecting plate (102) are both provided with a guide groove (104), and the refrigerant (105) is located inside the guide groove (104); The bottom of the cover plate (2) is fixed with a mounting plate (3), the back of the mounting plate (3) is fixed with a water inlet pipe (4), the back of the mounting plate (3) is fixed with a water outlet pipe (5), the left and right sides of the mounting plate (3) are fixed with connecting blocks (6), the left and right sides of the temperature-averaging liquid cooling plate body (1) are fixed with connecting blocks (7), the interior of the connecting block (6) is provided with a fixing component (8) that penetrates into the interior of the connecting block (7), the fixing component (8) is used to fix the temperature-averaging liquid cooling plate body (1) and the mounting plate (3), the right side of the temperature-averaging liquid cooling plate body (1) is fixed with a sealing component (9), the sealing component (9) is used to improve the overall sealing performance of the temperature-averaging liquid cooling plate body (1); The fixing assembly (8) comprises a threaded telescopic rod (801), a fixing plate (802), a fixing spring (803) and a limiting plate (804); the threaded telescopic rod (801) is slidably connected to the interior of the connecting block (6); the outer surface of the threaded telescopic rod (801) is fixed to the fixing plate (802); the bottom of the fixing plate (802) is fixed to the fixing spring (803); the bottom of the fixing spring (803) is fixed to the connecting block (6); the threaded telescopic rod (801) passes through the interior of the connecting block (7); and the top of the threaded telescopic rod (801) is rotatably connected to the limiting plate (804).

2. The three-dimensional pulsating temperature-equalizing liquid cooling plate according to claim 1, characterized in that: The threaded telescopic rod (801) comprises an extension block slidably connected to the connection block (6); the internal thread of the extension block is connected to an extension rod rotatably connected to the limit plate (804); and the fixing plate (802) is fixed to the extension block.

3. The three-dimensional pulsating temperature-equalizing liquid cooling plate according to claim 2, characterized in that: A fixed bearing (805) is fixed to the bottom of the limiting plate (804), and the interior of the fixed bearing (805) is fixed to the extension rod.

4. The three-dimensional pulsating temperature-equalizing liquid cooling plate according to claim 1, characterized in that: The connecting block (7) has a through hole inside that matches the threaded telescopic rod (801), the limiting plate (804) is a rectangular plate, and the connecting block (7) has a limiting hole inside that is connected to the through hole and matches the limiting plate (804).

5. The three-dimensional pulsating temperature-equalizing liquid cooling plate according to claim 1, characterized in that: A sponge pad is fixed to the bottom of the limiting plate (804), and a friction disc is fixed to the top of the connecting block (7).

6. The three-dimensional pulsating temperature-equalizing liquid cooling plate according to claim 1, characterized in that: A control block (806) is fixed to the bottom of the threaded telescopic rod (801), a friction strip is fixed to the outer surface of the control block (806), a sliding block is fixed to the outer surface of the threaded telescopic rod (801), and a sliding groove is provided inside the connecting block (6) for sliding connection with the sliding block.

7. The three-dimensional pulsating temperature-equalizing liquid cooling plate according to claim 1, characterized in that: The sealing assembly (9) comprises a connecting pipe (901), a sealing block (902), a sealing cover (903), a positioning block (904) and two positioning assemblies (905), wherein the connecting pipe (901) is fixed to the connecting plate (101), the connecting pipe (901) is communicated with the guide groove (104), the outer surface of the connecting plate (101) is fixed to the sealing block (902), the outer surface of the connecting plate (101) is threadedly connected to the sealing cover (903), the outer surface of the sealing cover (903) is fixed to the positioning block (904), and the positioning assembly (905) is slidably connected to the sealing block (902).

8. The three-dimensional pulsating temperature-equalizing liquid cooling plate according to claim 7, characterized in that: The positioning assembly (905) comprises a positioning rod (9051), a positioning plate (9052) and a positioning spring (9053); the positioning rod (9051) is slidably connected to the sealing block (902); the positioning rod (9051) is plugged into the positioning block (904); the positioning rod (9051) is fixed to the positioning plate (9052); and the positioning plate (9052) and the sealing block (902) are fixed to the positioning spring (9053).

9. The three-dimensional pulsating temperature-equalizing liquid cooling plate according to claim 8, characterized in that: A sealing gasket is fixed on the left side of the sealing cover (903), a sealing groove adapted to the sealing gasket is provided on the right side of the sealing block (902), an inclined surface is provided on the left side of the positioning rod (9051), and identification plates are fixed on the front sides of the connecting pipe (901) and the sealing cover (903).

10. A heat dissipation method applied to the three-dimensional pulsating temperature-equalizing liquid cold plate according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) When the top of the top plate (103) is heated, nucleate boiling occurs on the inner wall of the heating section of the guide groove (104), generating small bubbles. The pressure inside the bubbles increases due to the increase in the temperature of the heating section, and the pressure drives the bubbles to move toward the cooling section. During the movement, the gas plug merges and the liquid plug splits; 2) In the cooling section, the refrigerant (105) releases heat to the environment, and the bubbles rising to the cooling section of the guide groove (104) undergo phase change heat transfer, changing from gas to liquid. Due to the high density of the liquid, the liquid in the cooling section tends to move toward the heating section; 3) In this way, the temperature-averaging liquid cooling plate body (1) forms a pressure difference between the cooling section and the heating section, driving the refrigerant (105) in the temperature-averaging liquid cooling plate body (1) to move back and forth between the heating section and the cooling section, and heat is transferred from the heating section to the cooling section, thereby achieving heat transfer and ensuring temperature balance.

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