Multifunctional cold plate and cooling system

Abstract

The utility model provides a multifunctional cold plate and a cooling system, the multifunctional cold plate comprises a first substrate, the first surface of the first substrate is used for being connected with a device to be cooled; the third surface of the second substrate is connected with the second surface of the first substrate, a cavity is formed in the second substrate, a plurality of first fins which are arranged at intervals are formed in the cavity, and preset distances are formed between the two ends, in the length direction, of the first fins and the first inner wall and the second inner wall of the cavity; a liquid inlet hole which is communicated with the cavity and penetrates through the first inner wall is formed in the first substrate, and a liquid outlet hole which is communicated with the cavity and penetrates through the second inner wall is formed in the first substrate; the plurality of second fins are arranged at intervals and are connected with the fourth surface of the second substrate; and the liquid inlet hole and the liquid outlet hole are connected through the two plugs or the two joints. According to the cooling system, combined cooling of air cooling and liquid cooling can be provided, and the heat dissipation requirements of various objects to be cooled are met.

Description

Technical Field

[0001] The utility model relates to the field of radiators, in particular to a multifunctional cold plate and a cooling system. Background Art

[0002] The existing cold plate with a fin structure is usually an air-cooled cold plate, and the heat exchange area is increased by the fins.

[0003] The existing fin-type cold plate has limited heat dissipation capacity, which can meet the heat dissipation requirements of some objects to be cooled (chips, power devices or power modules, etc.) under normal circumstances, but cannot meet the heat dissipation requirements of objects to be cooled with large fluctuations in heat generation or objects to be cooled with high / very high heat generation. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide a multifunctional cold plate and cooling system, which can provide optional combined cooling of air cooling and liquid cooling, meet the heat dissipation requirements of various objects to be cooled, and realize the diversification of heat dissipation functions.

[0005] In order to solve the above problems, the utility model provides a multifunctional cold plate on one hand, and the multifunctional cold plate comprises:

[0006] A first substrate, the first substrate comprising a first surface and a second surface opposite to each other, the first surface of the first substrate being used for connecting with a device to be cooled;

[0007] a second substrate, the second substrate comprising a third surface and a fourth surface facing each other, the third surface of the second substrate being connected to the second surface of the first substrate, the second substrate being formed with a chamber capable of accommodating a cooling liquid, the chamber being formed with a plurality of first fins arranged at intervals and having two ends in a height direction respectively connected to a top wall and a bottom wall of the chamber, the two ends in a length direction of the first fin being at a predetermined distance from a first inner wall and a second inner wall of the chamber, the first inner wall and the second inner wall being two inner walls in the chamber adjacent to two ends in a length direction of the first fin, the first substrate being formed with a liquid inlet hole communicating with the chamber and passing through the first inner wall, and being formed with a liquid outlet hole communicating with the chamber and passing through the second inner wall;

[0008] A plurality of second fins, wherein the plurality of second fins are arranged at intervals and are all connected to the fourth surface of the second substrate;

[0009] Two plugs or two connectors, the two plugs can respectively block the liquid inlet and the liquid outlet, the two connectors are respectively connected to the liquid inlet and the liquid outlet, and the connectors are used to connect to an external coolant circulation cooling mechanism.

[0010] Further, a first orthographic projection of the second fin on the fourth surface of the second substrate overlaps with a second orthographic projection of the first fin on the fourth surface of the second substrate.

[0011] Furthermore, the second substrate further comprises:

[0012] a side plate, the side plate being arranged around an edge of the second surface of the first substrate;

[0013] A bottom plate, the bottom plate is connected to the side plate, the bottom plate, the side plate and the second surface of the first substrate are enclosed to form the chamber, and the bottom plate is formed with a plurality of through holes,

[0014] The plurality of second fins pass through the plurality of insertion holes in a one-to-one correspondence so as to be connected with the plurality of first fins in a one-to-one correspondence, and the first fins and the second fins are integrally formed.

[0015] Furthermore, the second substrate further comprises:

[0016] A solder layer is provided between the side plate and the bottom plate, between the side plate and the second surface of the first substrate, and between the second fins and the insertion holes.

[0017] Furthermore, the multifunctional cooling plate further comprises:

[0018] A temperature averaging plate is disposed between the first substrate and the second substrate, and the second substrate is connected to the first substrate through the temperature averaging plate.

[0019] Furthermore, a plurality of grooves are formed on the first surface of the first substrate.

[0020] The multifunctional cold plate also includes:

[0021] A heat pipe is buried in the groove.

[0022] Furthermore, the gap between the heat pipe and the groove is filled with thermally conductive resin.

[0023] Furthermore, the top end of the heat pipe is squeezed to be flush with the first surface of the first substrate.

[0024] Furthermore, the first substrate, the second substrate and the second fin are all made of aluminum or copper.

[0025] Another aspect of the utility model provides a cooling system, the cooling system comprising:

[0026] A multifunctional cold plate, wherein the multifunctional cold plate is any of the multifunctional cold plates described above, and the multifunctional cold plate comprises two joints;

[0027] A temperature sensor, the temperature sensor is used to connect to the object to be cooled to detect the temperature of the object to be cooled;

[0028] a fan, the fan being disposed adjacent to the multifunctional cold plate and configured to blow or suck air toward the second fin, the fan being started when the temperature detected by the temperature sensor is greater than a first predetermined temperature;

[0029] a water pump, wherein a liquid inlet end of the water pump is connected to the joint corresponding to the liquid outlet hole of the multifunctional cold plate, and the water pump is started according to the temperature detected by the temperature sensor being greater than a second predetermined temperature, and the second predetermined temperature is greater than the first predetermined temperature;

[0030] A refrigeration device, wherein the liquid inlet end of the refrigeration device is connected to the liquid outlet end of the water pump, and the liquid outlet end of the refrigeration device is connected to the joint corresponding to the liquid inlet hole of the multifunctional cold plate, and the refrigeration device starts refrigeration following the start of the water pump.

[0031] Due to the above technical solution, the utility model has the following beneficial effects:

[0032] According to the utility model, the multifunctional cold plate includes a first substrate, a second substrate and a plurality of second fins, the first surface of the first substrate is connected to the object to be cooled, the second substrate is connected to the first substrate and forms a chamber capable of accommodating a coolant, the coolant can flow into the chamber through the liquid inlet hole, and the coolant can flow out of the chamber through the liquid outlet hole, the plurality of second fins are connected to the second substrate, and the outside air can exchange heat through the second fins. Two plugs or two joints are respectively connected to the liquid inlet hole and the liquid outlet hole of the multifunctional cold plate.

[0033] Thus, the multifunctional cold plate can have two optional structures. Structure 1: first close the liquid outlet through one of the plugs, then inject coolant into the chamber through the liquid inlet, and then close the liquid inlet through another plug. The multifunctional cold plate dissipates heat through air cooling and the coolant retained in the chamber of the cold plate, which can meet the heat dissipation needs of objects to be cooled with high heat dissipation requirements, or can meet the heat dissipation needs of objects to be cooled with large fluctuations in heat generation, or meet the heat dissipation needs of objects to be cooled with high heat dissipation requirements but low frequency of use. Structure 2: The two joints are respectively connected to the external coolant circulation cooling mechanism, that is, the multifunctional cold plate dissipates heat through a combination of air cooling and flowing coolant, which can meet the heat dissipation needs of objects to be cooled with high heat dissipation requirements. Therefore, the multifunctional cold plate of the present application can provide two cooling methods: cooling by air cooling and retained coolant, and cooling by air cooling and circulating coolant, that is, providing combined cooling of air cooling and liquid cooling, meeting the heat dissipation needs of a variety of objects to be cooled, and realizing the diversification of heat dissipation functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution of the utility model, the following is a brief introduction to the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 is a schematic diagram of a multifunctional cold plate according to an embodiment of the utility model;

[0036] Figure 2 yes Figure 1 A schematic diagram of another perspective of the multifunctional cold plate of the embodiment;

[0037] Figure 3 It is a structural diagram of a first substrate, a first fin and a second fin according to an embodiment of the utility model;

[0038] Figure 4 is a structural diagram of a second substrate, a first fin and a second fin according to an embodiment of the utility model;

[0039] Figure 5 It is a structural diagram of a cooling system according to an embodiment of the utility model.

[0040] 100, first substrate; 110, groove; 200, second substrate; 210, side plate; 220, bottom plate; 230, liquid inlet hole; 240, first fin; 300, second fin; 400, heat pipe; 500, fan; 610, water pump; 620, refrigeration device. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0043] Next, a multifunctional cold plate according to an embodiment of the present invention is described.

[0044] like Figures 1 to 4 As shown, the multifunctional cold plate according to the embodiment of the present invention includes a first base plate 100 , a second base plate 200 and a plurality of second fins 300 .

[0045] First, the first substrate 100 is described. The first substrate 100 includes a first surface and a second surface opposite to each other, and the first surface of the first substrate 100 is used to connect with a device to be cooled.

[0046] That is, a mounting area for connecting an object to be cooled is formed on the first surface of the first substrate 100 so as to connect the object to be cooled.

[0047] Next, the second substrate 200 is described. The second substrate 200 includes a third surface and a fourth surface facing each other, the third surface of the second substrate 200 is connected to the second surface of the first substrate 100, the second substrate 200 is formed with a chamber capable of accommodating a cooling liquid, a plurality of first fins 240 are formed in the chamber, which are arranged at intervals and connected to the top wall and the bottom wall of the chamber at both ends in the height direction, respectively, the two ends in the length direction of the first fin 240 are at a predetermined distance from the first inner wall and the second inner wall of the chamber, the first inner wall and the second inner wall are two inner walls in the chamber adjacent to the two ends in the length direction of the first fin 240, the first substrate 100 is formed with a liquid inlet hole 230 communicating with the chamber and passing through the first inner wall, and is formed with a liquid outlet hole communicating with the chamber and passing through the second inner wall.

[0048] like Figure 1 and Figure 4 As shown, the coolant can flow into the cavity of the second substrate 200 through the liquid inlet hole 230 and flow out through the liquid outlet hole. The first fin 240 in the cavity of the second substrate 200 can increase the heat exchange area between the coolant and the second substrate 200 and improve the heat exchange amount.

[0049] Both ends of the first fin 240 in the length direction are at a predetermined distance from the first inner wall and the second inner wall, so that the coolant can flow into all the gaps between adjacent first fins 240 .

[0050] Next, the second fins 300 are described. The second fins 300 are arranged at intervals and connected to the fourth surface of the second substrate 200 .

[0051] The second fins 300 can increase the heat exchange area between the multifunctional cold plate and the air, and can dissipate heat by air cooling.

[0052] Finally, two plugs or two joints are described. The two plugs can block the liquid inlet and the liquid outlet respectively, and the two joints are connected to the liquid inlet and the liquid outlet respectively, and the joints are used to connect to the external coolant circulation cooling mechanism. The two plugs can be used to close the chamber after the coolant is contained in the chamber, so that the coolant is retained in the cold plate.

[0053] The cold plate can be connected to an external coolant circulation cooling mechanism through two joints, so that the coolant can flow in the chamber. The external coolant circulation cooling mechanism can be the water pump 610 and the refrigeration device 620 described below, or other devices with cooling and circulating coolant functions.

[0054] The above multifunctional cold plate includes a first substrate 100, a second substrate 200 and a plurality of second fins 300. The first surface of the first substrate 100 is connected to an object to be cooled. The second substrate 200 is connected to the first substrate 100 and forms a chamber capable of accommodating a coolant. The coolant can flow into the chamber through a liquid inlet 230 and flow out of the chamber through a liquid outlet. The plurality of second fins 300 are connected to the second substrate 200, and the outside air can exchange heat through the second fins 300. Two plugs or two joints can connect the liquid inlet 230 and the liquid outlet of the multifunctional cold plate.

[0055] Thus, the multifunctional cold plate can have two optional structures. Structure 1: first close the liquid outlet through one of the plugs, then inject coolant into the chamber through the liquid inlet hole 230, and then close the liquid inlet through another plug. The multifunctional cold plate dissipates heat through air cooling and the coolant retained in the chamber of the cold plate, which can meet the heat dissipation needs of objects to be cooled with high heat dissipation requirements, or can meet the heat dissipation needs of objects to be cooled with large fluctuations in heat generation, or meet the heat dissipation needs of objects to be cooled with high heat dissipation requirements but low frequency of use. Structure 2: The two joints are respectively connected to the external coolant circulation cooling mechanism, that is, the multifunctional cold plate dissipates heat through a combination of air cooling and flowing coolant, which can meet the heat dissipation needs of objects to be cooled with high heat dissipation requirements. Therefore, the multifunctional cold plate of the present application can provide two cooling methods: cooling by air cooling and retained coolant, and cooling by air cooling and circulating coolant, that is, providing combined cooling of air cooling and liquid cooling, meeting the heat dissipation needs of a variety of objects to be cooled, and realizing the diversification of the heat dissipation function of the cold plate.

[0056] In some embodiments of the present invention, a first orthographic projection of the second fin 300 on the fourth surface of the second substrate 200 overlaps with a second orthographic projection of the first fin 240 on the fourth surface of the second substrate 200 .

[0057] like Figure 3 As shown, the first fin 240 and the second fin 300 are integrally formed and pass through the second surface of the second substrate 200 .

[0058] It should be noted that the above are only optional examples, and the first fin 240 and the second fin 300 may also be independent of each other, and only have the same position relative to the second surface, which should be understood to be within the scope of the present invention.

[0059] In this design, the first fin 240 and the second fin 300 are integrally formed or have a small distance therebetween, thereby reducing thermal resistance and improving heat exchange efficiency.

[0060] Further, the second substrate 200 includes a side plate 210, a bottom plate 220 and a plurality of second fins 300. The side plate 210 is arranged around the edge of the second surface of the first substrate 100. The bottom plate 220 is connected to the side plate 210, and the bottom plate 220, the side plate 210 and the second surface of the first substrate 100 are enclosed to form a chamber, and the bottom plate 220 is formed with a plurality of through holes. The plurality of second fins 300 pass through the plurality of holes in a one-to-one correspondence to be connected with the plurality of first fins 240 in a one-to-one correspondence, and the first fins 240 and the second fins 300 are integrally formed.

[0061] like Figure 2 and Figure 4 As shown, the side panels 210 (side panels with rectangular cross-sections) are arranged around the second surface of the second clamping plate, and the bottom panel 220 is connected to the bottom end of the side panels 210 to close the opening formed by the side panels 210, so that the second surface of the first substrate 100, the side panels 210 and the bottom panel 220 are enclosed to form a chamber.

[0062] It should be noted that the above are only optional examples, and the shape of the first substrate 100 may also be a pentagon, a hexagon, a circle, etc.

[0063] like Figure 3 As shown, the first fin 240 and the second fin 300 are integrally formed, passing through the insertion hole formed by the bottom plate 220. The first fin 240 and the second fin 300 can also be integrally formed with the first substrate 100, and the first fin 240 and the second fin 300 can be formed by aluminum extrusion, shoveling or inserting.

[0064] The multifunctional cold plate of this structure has simple structure and manufacturing process, low thermal resistance and high heat exchange efficiency.

[0065] Furthermore, the second substrate 200 further includes a solder layer, which is disposed between the side plate 210 and the bottom plate 220, between the side plate 210 and the second surface of the first substrate 100, and between the second fins 300 and the insertion holes.

[0066] That is to say, by brazing between the side plate 210 and the bottom plate 220, between the side plate 210 and the second surface of the first substrate 100, and between the plurality of second fins 300 and the plurality of sockets, the thermal resistance at the connection position can be lowered and the chamber can be sealed to prevent the cooling liquid from leaking from the gaps in the chamber.

[0067] In some embodiments of the present invention, the multi-functional cold plate further includes: a temperature averaging plate, which is disposed between the first substrate 100 and the second substrate 200, and the second substrate 200 is connected to the first substrate 100 through the temperature averaging plate.

[0068] The temperature averaging plate can increase the heat transfer efficiency, that is, it can quickly exchange heat between the high temperature area (the position connected to the object to be cooled) and the low temperature area (the area not connected to the object to be cooled) of the first substrate 100, further increasing the cooling efficiency. The temperature averaging plate is arranged between the first substrate 100 and the second substrate 200, which is relatively closed to avoid damage, and can quickly transfer heat to both the first substrate 100 and the second substrate 200. The temperature averaging plate is a known technology, and its specific structure is not repeated here.

[0069] In some embodiments of the present invention, a plurality of grooves 110 are formed on the first surface of the first substrate 100 , and the multifunctional cold plate further includes a heat pipe 400 . The heat pipe 400 is buried in the groove 110 .

[0070] The heat transfer efficiency of the heat pipe 400 is very high, and the heat generated by the object to be cooled can be quickly conducted to the lower temperature area of ​​the first substrate 100. The heat pipe 400 is a known technology, and its specific structure is not described here.

[0071] The heat pipe 400 is buried in the groove 110 , which can increase the contact area between the heat pipe 400 and the first substrate 100 , thereby increasing the heat exchange area.

[0072] Furthermore, the gap between the heat pipe 400 and the groove 110 is filled with thermally conductive resin.

[0073] The thermal contact resistance between the heat pipe 400 and the first substrate 100 can be further reduced by the thermal conductive resin.

[0074] Optionally, the top end of the heat pipe 400 is pressed to be flush with the first surface of the first substrate 100 .

[0075] The heat pipe 400 is usually cylindrical. By squeezing the heat pipe 400 to make its upper surface horizontal, the contact area between the heat pipe 400 and the object to be cooled can be increased, the heat exchange area can be increased, and the heat pipe 400 can be tightly connected to the first substrate 100 to reduce the contact thermal resistance.

[0076] In some embodiments of the present invention, the first substrate 100 , the second substrate 200 and the second fin 300 are all made of aluminum or copper.

[0077] Copper and aluminum have high thermal conductivity, which can increase the efficiency of heat transfer to the object to be cooled.

[0078] The cooling system of the embodiment of the utility model is described below. The cooling system includes a multifunctional cold plate, a temperature sensor, a fan 500, a water pump 610 and a refrigeration device 620, and the multifunctional cold plate includes two joints.

[0079] like Figure 5 As shown, the multifunctional cold plate is the multifunctional cold plate mentioned above, and the chamber of the second substrate 200 of the multifunctional cold plate can contain cooling liquid. The temperature sensor is used to connect the object to be cooled to detect the temperature of the object to be cooled. The fan 500 is arranged adjacent to the multifunctional cold plate, and is used to blow or suck air to the second fin 300. The fan 500 is started according to the temperature detected by the temperature sensor being greater than the first predetermined temperature. The liquid inlet end of the water pump 610 is connected to the joint corresponding to the liquid outlet hole of the multifunctional cold plate, and the water pump 610 is started according to the temperature detected by the temperature sensor being greater than the second predetermined temperature, and the second predetermined temperature is greater than the first predetermined temperature. The liquid inlet end of the refrigeration device 620 is connected to the liquid outlet end of the water pump 610, and the liquid outlet end of the refrigeration device 620 is connected to the joint corresponding to the liquid inlet hole 230 of the functional cold plate. The refrigeration device 620 starts refrigeration following the start of the water pump 610.

[0080] When the cooling system is in use, the object to be cooled is connected to the first surface of the first substrate 100 of the multifunctional cold plate, the cavity of the second substrate 200 contains cooling liquid, and the temperature sensor tests the temperature of the object to be cooled.

[0081] The cooling system takes appropriate actions according to the temperature of the object to be cooled as monitored by the temperature sensor:

[0082] 1) The temperature of the object to be cooled is lower than a first predetermined temperature.

[0083] In this case, the object to be cooled is cooled by natural convection of air cooling and the coolant retained in the multi-functional cold plate.

[0084] 2) The temperature of the object to be cooled is higher than the first predetermined temperature and lower than the second predetermined temperature.

[0085] In this case, the fan 500 is started, and the object to be cooled is cooled by forced convection of air cooling and the coolant retained in the multifunctional cold plate.

[0086] 3) The temperature of the object to be cooled is higher than the second predetermined temperature.

[0087] In this case, the water pump 610 and the refrigeration device 620 are started based on the start of the fan 500. The object to be cooled is cooled by forced convection of air cooling and the coolant flowing and cooled by the refrigeration device 620.

[0088] The above cooling system can be adjusted in time according to the temperature of the object to be cooled, can reduce energy consumption, and has high heat dissipation efficiency for the object to be cooled.

[0089] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional cold plate, characterized in that: The multifunctional cold plate comprises: A first substrate, the first substrate comprising a first surface and a second surface opposite to each other, the first surface of the first substrate being used for connecting with a device to be cooled; a second substrate, the second substrate comprising a third surface and a fourth surface facing each other, the third surface of the second substrate being connected to the second surface of the first substrate, the second substrate being formed with a chamber capable of accommodating a cooling liquid, the chamber being formed with a plurality of first fins arranged at intervals and having two ends in a height direction respectively connected to a top wall and a bottom wall of the chamber, the two ends in a length direction of the first fin being at a predetermined distance from a first inner wall and a second inner wall of the chamber, the first inner wall and the second inner wall being two inner walls in the chamber adjacent to two ends in a length direction of the first fin, the first substrate being formed with a liquid inlet hole communicating with the chamber and passing through the first inner wall, and being formed with a liquid outlet hole communicating with the chamber and passing through the second inner wall; A plurality of second fins, wherein the plurality of second fins are arranged at intervals and are all connected to the fourth surface of the second substrate; Two plugs or two connectors, the two plugs can respectively block the liquid inlet and the liquid outlet, the two connectors are respectively connected to the liquid inlet and the liquid outlet, and the connectors are used to connect to an external coolant circulation cooling mechanism.

2. The multifunctional cold plate according to claim 1, characterized in that: A first orthographic projection of the second fin on the fourth surface of the second substrate overlaps with a second orthographic projection of the first fin on the fourth surface of the second substrate.

3. The multifunctional cold plate according to claim 2, characterized in that: The second substrate further comprises: a side plate, the side plate being arranged around an edge of the second surface of the first substrate; A bottom plate, the bottom plate is connected to the side plate, the bottom plate, the side plate and the second surface of the first substrate are enclosed to form the chamber, and the bottom plate is formed with a plurality of through holes, The plurality of second fins pass through the plurality of insertion holes in a one-to-one correspondence so as to be connected with the plurality of first fins in a one-to-one correspondence, and the first fins and the second fins are integrally formed.

4. The multifunctional cold plate according to claim 3, characterized in that: The second substrate further comprises: A solder layer is provided between the side plate and the bottom plate, between the side plate and the second surface of the first substrate, and between the second fins and the insertion holes.

5. The multifunctional cold plate according to claim 1, characterized in that: The multifunctional cooling plate also includes: A temperature averaging plate is disposed between the first substrate and the second substrate, and the second substrate is connected to the first substrate through the temperature averaging plate.

6. The multifunctional cold plate according to claim 1, characterized in that: A plurality of grooves are formed on the first surface of the first substrate. The multifunctional cold plate also includes: A heat pipe is buried in the groove.

7. The multifunctional cold plate according to claim 6, characterized in that: The gap between the heat pipe and the groove is filled with thermal conductive resin.

8. The multifunctional cold plate according to claim 6, characterized in that: The top end of the heat pipe is pressed to be flush with the first surface of the first substrate.

9. The multifunctional cold plate according to claim 1, characterized in that: The first substrate, the second substrate and the second fin are all made of aluminum or copper.

10. A cooling system, characterized in that: The cooling system comprises: A multifunctional cold plate, wherein the multifunctional cold plate is the multifunctional cold plate according to any one of claims 1 to 9, and the multifunctional cold plate comprises two joints; A temperature sensor, wherein the temperature sensor is used to connect to an object to be cooled so as to detect the temperature of the object to be cooled; a fan, the fan being disposed adjacent to the multifunctional cold plate and configured to blow or suck air toward the second fin, the fan being started when the temperature detected by the temperature sensor is greater than a first predetermined temperature; a water pump, wherein a liquid inlet end of the water pump is connected to the joint corresponding to the liquid outlet hole of the multifunctional cold plate, and the water pump is started according to the temperature detected by the temperature sensor being greater than a second predetermined temperature, and the second predetermined temperature is greater than the first predetermined temperature; A refrigeration device, wherein the liquid inlet end of the refrigeration device is connected to the liquid outlet end of the water pump, and the liquid outlet end of the refrigeration device is connected to the joint corresponding to the liquid inlet hole of the multifunctional cold plate, and the refrigeration device starts refrigeration following the start of the water pump.

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