Liquid cooling plate and liquid cooling device for energy storage battery

Abstract

The utility model is a liquid cooling plate and liquid cooling heat dissipation device for energy storage batteries, belonging to the field of battery pack heat dissipation technology. Its technical scheme is as follows: a liquid cooling plate for energy storage batteries, including a body, a liquid channel is arranged in the body in an S shape in the vertical direction, and the liquid flow in the liquid channel in the vertical direction is unidirectional flow, and the liquid cooling heat dissipation device includes a bottom plate, at least one liquid cooling plate is arranged on the upper surface of the bottom plate, and the two ends of the liquid cooling plate are respectively connected with a liquid inlet mechanism and a liquid outlet mechanism. By arranging the liquid channel in the liquid cooling plate in an S shape in the vertical direction, the coolant can be filled in the length direction of the liquid cooling plate in a short time after entering the liquid cooling plate, thereby avoiding the liquid cooling channels arranged at both ends in the length direction of the battery pack, which causes the battery temperature of the liquid cooling plate near the liquid inlet end to be lower than the battery temperature far from the liquid inlet end.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack heat dissipation, and in particular to a liquid cooling plate and a liquid cooling heat dissipation device for an energy storage battery. Background Art

[0002] When the energy storage battery pack is charging or discharging the energy storage system, a large amount of heat is generated. In addition, the temperature inside the energy storage battery pack will rise rapidly due to the tight arrangement of the battery space. In the prior art, a liquid cooling plate is designed on the side of the battery pack to transfer the heat in the battery pack to the liquid cooling plate, and then the heat is dissipated into the air through a radiator. However, the local heat in the box is difficult to be discharged evenly, which affects the performance and life of the energy storage system, and may even cause safety hazards.

[0003] In order to maintain the temperature inside the battery pack within a certain temperature range, patent document CN115207514A provides a liquid cooling heat dissipation structure for an energy storage battery pack, which dissipates heat from the batteries by arranging multiple liquid cooling plates between adjacent batteries in the battery pack, and the liquid cooling plates exchange heat through a single refrigerant channel in the vertical direction inside the battery pack, thereby achieving cooling inside the battery pack; or patent document CN116231216A provides an S-shaped refrigerant channel arranged in the horizontal direction at both ends of the battery pack for heat exchange inside the liquid cooling plate.

[0004] However, due to the small heat exchange area between the single refrigerant channel and the liquid cooling plate in the vertical direction, the temperature on the liquid cooling plate is uneven. The temperature of the liquid cooling plate near the refrigerant channel is lower than the rest of the temperature, which leads to a decrease in heat dissipation efficiency. Similarly, in the horizontal direction, the liquid cooling plate with an S-shaped refrigerant channel from one end of the battery pack to the other end will have a lower battery temperature near the liquid inlet end than the battery temperature far from the liquid inlet end. The long-term temperature difference between batteries at different positions will lead to large differences in the battery operating environment. Long-term operation of the battery pack in an environment with a large temperature difference will lead to serious differences in internal resistance and capacity between batteries, which may cause overcharge or over-discharge of some batteries, affecting the performance and life of the energy storage system. Summary of the invention

[0005] The utility model provides a liquid cooling plate and a liquid cooling heat dissipation device for energy storage batteries to address the problems in the prior art of providing a single refrigerant channel in the vertical direction or horizontal S-shaped refrigerant channels at both ends of a battery pack, which may lead to reduced heat dissipation efficiency or cause batteries at different positions to have higher temperatures, thereby affecting the performance and life of the energy storage system.

[0006] The technical solution adopted by the utility model is as follows:

[0007] In a first aspect, a liquid cooling plate for an energy storage battery includes a body, in which a liquid channel is arranged in the body, the liquid channel is arranged in an S shape in the vertical direction in the body, the liquid flows in the liquid channel in a unidirectional manner in the vertical direction, and both ends of the liquid channel are connected to the outside of the body. By arranging the liquid channel in the liquid cooling plate in an S shape, the coolant can be evenly distributed on the liquid cooling plate, and the overall heat exchange action of the liquid cooling plate is performed to avoid uneven temperature on the liquid cooling plate, that is, the temperature of the liquid cooling plate near the liquid channel is lower than the temperature of other positions, thereby causing the problem of reduced heat dissipation efficiency. At the same time, the liquid channel is arranged in the liquid cooling plate in an S shape in the vertical direction, so that after the coolant enters the liquid cooling plate, it can be filled in the length direction of the liquid cooling plate in a short time, avoiding the liquid cooling channels arranged at both ends in the length direction of the battery pack, which causes the battery temperature of the liquid cooling plate near the liquid inlet end to be lower than the battery temperature far from the liquid inlet end, reduces the temperature difference of batteries at different positions for a long time, which will cause a large difference in the battery operating environment, reduces the temperature difference of the battery pack, and thus reduces the problem of serious differences in internal resistance and capacity between batteries caused by long-term operation in a high temperature difference environment, avoids overcharging or over-discharging of some batteries, and improves the performance and life of the energy storage system.

[0008] Preferably, the liquid channel is provided with a liquid inlet channel, a connecting channel and a liquid outlet channel, and the liquid inlet channel, the connecting channel and the liquid outlet channel are all arranged horizontally, and the liquid channel also includes a first curved channel and a second curved channel, and the two ends of the first curved channel are respectively connected to the liquid inlet channel and the connecting channel, and the two ends of the second curved channel are respectively connected to the liquid outlet channel and the connecting channel. By setting the horizontal liquid inlet channel, the connecting channel and the liquid outlet channel, the speed of the coolant will not decrease when passing through the liquid inlet channel, the connecting channel and the liquid outlet channel in the liquid channel, thereby improving the liquid replacement speed, thereby reducing the temperature difference at different positions on the liquid cooling plate, and improving the heat dissipation efficiency.

[0009] Preferably, there are more than two connecting channels, and the liquid channel further includes a third curved channel, and the two ends of the third curved channel are respectively connected to two adjacent connecting channels. By providing more than two connecting channels and the third curved channel therebetween, the contact area between the body and the liquid channel can be increased, thereby improving the heat exchange efficiency of the liquid cooling plate.

[0010] Preferably, the first curved channel, the second curved channel and the third curved channel are all round tubes bent at 180 degrees. By setting the first curved channel, the second curved channel and the third curved channel as round tubes bent at 180 degrees, multiple connections in the liquid channel are smoothly connected, avoiding the flow rate reduction caused by the large bend at the channel bend when the liquid flows through the channel bend, which can further increase the flow rate of the coolant in the liquid channel and improve the heat dissipation efficiency.

[0011] Preferably, a sealing ring is further provided, and the sealing ring is provided in the liquid inlet channel and the liquid outlet channel. By providing the sealing ring, the gap is sealed by a certain deformation at the liquid outlet channel and the liquid inlet channel, so that the leakage of the coolant can be reduced.

[0012] Preferably, a heat-conducting gasket is also provided, and a heat-conducting gasket capable of abutting against the battery is provided on at least one end surface of the body. The heat-conducting gasket can increase the heat conduction efficiency between the liquid cooling plate and the battery, further improving the heat dissipation efficiency of the battery.

[0013] In a second aspect, a liquid cooling device comprises a base plate, wherein at least one liquid cooling plate as described in the first aspect is arranged on the upper surface of the base plate, and the two ends of the liquid cooling plate are respectively connected to a liquid inlet mechanism and a liquid outlet mechanism, one end of the liquid inlet channel is connected to the liquid inlet mechanism, and one end of the liquid outlet channel is connected to the liquid outlet mechanism. By arranging multiple liquid cooling plates on the base plate, the corresponding number of liquid cooling plates can be arranged according to the number of battery packs in the battery pack, thereby increasing the scope of use of the liquid cooling device.

[0014] Preferably, the liquid inlet mechanism includes a liquid inlet and a liquid separation channel, the liquid inlet is connected to the liquid separation channel, at least one liquid separation port is provided on the liquid separation channel, one end of the liquid separation port is connected to the liquid separation channel, the number of liquid separation ports is the same as the number of liquid cooling plates and is arranged one-to-one, and the other end of the liquid separation port is connected to the liquid inlet channel; the liquid outlet mechanism includes a liquid outlet and a liquid collecting channel, the liquid outlet is connected to the liquid collecting channel, at least one liquid collecting port is provided on the liquid collecting channel, one end of the liquid collecting port is connected to the liquid collecting channel, the number of liquid collecting ports is the same as the number of liquid cooling plates and is arranged one-to-one, and the other end of the liquid collecting port is connected to the liquid collecting channel. By setting the liquid separation channel and the liquid separation port, the coolant flowing into a single liquid inlet can be evenly distributed on multiple liquid cooling plates, and by setting the liquid collecting channel and the liquid collecting port, the coolant flowing out of multiple liquid outlets can be collected together, and then the subsequent coolant circulation is carried out, avoiding the coolant leakage problem caused by setting multiple external interfaces.

[0015] Preferably, the liquid inlet mechanism and the liquid outlet mechanism are both fixedly connected to the base plate, and at least one positioning groove is provided on the base plate. The number of positioning grooves is the same as the number of liquid cooling plates and corresponds one to one. The liquid cooling plates are snapped into the positioning grooves, and the liquid cooling plates are fixedly connected to the base plate by bolts. By fixing the liquid inlet mechanism and the liquid outlet mechanism to the base plate, the liquid inlet mechanism and the liquid outlet mechanism can be relatively still with the battery pack when the battery pack shakes, etc., to avoid leakage of coolant caused by relative movement. The positioning grooves are set to accurately install the position of the liquid cooling plate, to avoid manual measurement of the installation position after the installation of the liquid cooling plate is completed, and the deviation in the distance between the liquid cooling plates when the battery is placed causes the liquid cooling plates to be unable to fit tightly with the battery. At the same time, the welding fixation of the liquid cooling plate is changed to bolt fixation, which is convenient for personnel to disassemble and adjust the heat dissipation device.

[0016] Preferably, a buckle is also included, the buckle is C-shaped, and the inner ends of the buckle can respectively engage the outer end surface of the outermost liquid cooling plate of the heat dissipation device. By setting the buckle, after the batteries are placed, the total thickness of the multiple batteries and the liquid cooling plate can be no greater than the inner distance of the buckle, ensuring that the battery, the thermal pad and the liquid cooling plate can fit tightly, thereby increasing the stability of the heat dissipation device.

[0017] It can be seen from the above technical scheme that the advantages of the utility model are: by arranging the liquid channel in an S shape in the liquid cooling plate, the coolant can be evenly distributed on the liquid cooling plate, and the overall heat exchange action of the liquid cooling plate is performed to avoid uneven temperature on the liquid cooling plate, that is, the temperature of the liquid cooling plate near the liquid channel is lower than the temperature of the other positions, which leads to the problem of reduced heat dissipation efficiency. At the same time, the liquid channel is arranged in an S shape in the liquid cooling plate in the vertical direction, and after the coolant enters the liquid cooling plate, it can be filled in the length direction of the liquid cooling plate in a short time, avoiding the liquid cooling channels arranged at both ends in the length direction of the battery pack, causing the battery temperature of the liquid cooling plate near the liquid inlet end to be lower than the battery temperature far from the liquid inlet end, reducing the temperature difference of batteries at different positions for a long time, which will cause large differences in the battery operating environment, reducing the temperature difference of the battery pack, thereby reducing the problem of serious differences in internal resistance and capacity between batteries caused by long-term operation in a high temperature difference environment, avoiding overcharging or over-discharging of some batteries, and improving the performance and life of the energy storage system. By setting a horizontal liquid inlet channel, connecting channel and liquid outlet channel, the speed of the coolant will not decrease when passing through the liquid inlet channel, connecting channel and liquid outlet channel in the liquid channel, thereby increasing the liquid replacement speed, thereby reducing the temperature difference at different positions on the liquid cooling plate and improving the heat dissipation efficiency. By setting more than two connecting channels and the third curved channel therebetween, the contact area between the body and the liquid channel can be increased, thereby improving the heat exchange efficiency of the liquid cooling plate. By setting the first curved channel, the second curved channel and the third curved channel as a round tube bent 180°, at this time, multiple connections in the liquid channel are smoothly connected, thereby avoiding the flow rate reduction caused by the large bend at the channel bend when the liquid flows through the channel bend, thereby further increasing the flow rate of the coolant in the liquid channel and improving the heat dissipation efficiency. By setting a sealing ring, a certain deformation is performed at the liquid outlet channel and the liquid inlet channel to seal the gap, thereby reducing the leakage of the coolant. By setting a thermally conductive gasket, the thermal conductivity between the liquid cooling plate and the battery can be increased, thereby further improving the heat dissipation efficiency of the battery. By setting up multiple liquid cooling plates on the bottom plate, the corresponding number of liquid cooling plates can be set according to the number of battery packs in the battery pack, thereby increasing the scope of use of the liquid cooling device. By setting up the liquid separation channel and the liquid separation port, the coolant flowing in from a single liquid inlet can be evenly distributed on multiple liquid cooling plates, and by setting up the liquid collection channel and the liquid collection port, the coolant flowing out from multiple liquid outlets can be collected together, and then the subsequent coolant circulation can be carried out, thereby avoiding the problem of coolant leakage caused by setting up multiple external interfaces.By fixing the liquid inlet mechanism and the liquid outlet mechanism to the bottom plate, the liquid inlet mechanism and the liquid outlet mechanism can be relatively still with the battery pack when the battery pack shakes, avoiding leakage of coolant caused by relative movement. The positioning groove is set to accurately install the position of the liquid cooling plate, avoiding manual measurement of the installation position. After the installation of the liquid cooling plate is completed, the deviation in the distance between the liquid cooling plates when placing the battery causes the battery to not fit tightly. At the same time, the welding fixation of the liquid cooling plate is changed to bolt fixation, which is convenient for personnel to disassemble and adjust the heat dissipation device. Through the buckle, after the batteries are placed, the total thickness of multiple batteries and the liquid cooling plate can be made no greater than the inner distance of the buckle, ensuring that the battery, thermal pad and liquid cooling plate can fit tightly, increasing the stability of the heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0020] Figure 2 It is a cross-sectional view of a liquid cooling plate according to a specific embodiment of the present utility model.

[0021] Figure 3 This is a schematic diagram of the positions of the liquid cooling plate and the thermally conductive gasket according to a specific implementation method of the utility model.

[0022] In the figure: 1. bottom plate; 11. positioning groove; 2. main body; 211. liquid inlet channel; 212. connecting channel; 213. liquid outlet channel; 214. first curved channel; 215. second curved channel; 216. third curved channel; 3. liquid inlet mechanism; 31. liquid inlet port; 32. liquid separation channel; 33. liquid separation port; 4. liquid outlet mechanism; 41. liquid outlet port; 42. liquid collecting channel; 43. liquid collecting port; 5. sealing ring; 6. thermal conductive gasket; 7. buckle. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] Embodiment 1:

[0025] like Figure 2 and Figure 3 As shown, a liquid cooling plate for energy storage batteries, the liquid cooling plate includes a body 2, a liquid channel is arranged in the body 2, and the liquid channel is arranged in the body 2 in an S shape in the vertical direction. By arranging the liquid channel in the body 2 in an S shape, the coolant can be evenly distributed in the body 2, and the heat exchange action of the whole body 2 is performed, thereby avoiding the problem of uneven temperature on the body 2, and the temperature of the body 2 near the liquid channel being lower than the temperature of other positions, thereby causing the heat dissipation efficiency to decrease. At the same time, the liquid channel is arranged in the body 2 in an S shape in the vertical direction, so that after the coolant enters the body 2, it can be filled in the length direction of the body 2 in a short time, thereby avoiding the problem that the battery temperature of the body 2 near the liquid inlet end is lower than the battery temperature far from the liquid inlet end caused by the horizontal arrangement of the S-shaped plate provided in the patent document CN116231216A, reducing the temperature difference of batteries at different positions for a long time, resulting in a large difference in the battery operating environment, reducing the temperature difference of the battery pack, thereby reducing the problem that long-term operation in a high temperature difference environment will cause serious differences in internal resistance and capacity between batteries, avoiding overcharging or over-discharging of some batteries, and improving the performance and life of the energy storage system.

[0026] In this embodiment, the liquid channel includes an inlet channel 211, a connecting channel 212 and a liquid outlet channel 213. At least one connecting channel 212 is provided and in this embodiment, three connecting channels 212 are provided. The inlet channel 211, the connecting channel 212 and the liquid outlet channel 213 are all arranged horizontally. The liquid channel also includes a first curved channel 214, a second curved channel 215 and a third curved channel 216. The two ends of the first curved channel 214 are respectively connected to the inlet channel 211 and the connecting channel 212, the two ends of the second curved channel 215 are respectively connected to the liquid outlet channel 213 and the connecting channel 212, and the two ends of the third curved channel 216 are respectively connected to two adjacent connecting channels 212. The first curved channel 214 and the second curved channel 215 are respectively connected to the liquid outlet channel 213 and the connecting channel 212. 15 and the third curved channel 216 are all circular tubes bent 180°. With such a configuration, by setting horizontal liquid inlet channel 211, connecting channel 212 and liquid outlet channel 213, the speed of the coolant will not decrease when passing through the liquid inlet channel 211, connecting channel 212 and liquid outlet channel 213 in the liquid channel, thereby improving the liquid replacement speed, thereby reducing the temperature difference at different positions on the main body 2 and improving the heat dissipation efficiency. By setting the first curved channel 214, the second curved channel 215 and the third curved channel 216 to circular tubes bent 180°, multiple connections in the liquid channel are smoothly connected at this time, avoiding the reduction in flow velocity due to the large bend at the channel bend when the liquid flows through the channel bend, which can further increase the flow velocity of the coolant in the liquid channel and improve the heat dissipation efficiency.

[0027] In this embodiment, a sealing ring 5 is also provided. The sealing ring 5 is arranged in the liquid inlet channel 211 and the liquid outlet channel 213. In this way, the sealing ring 5 can be deformed to a certain extent to seal the gap, thereby reducing the leakage of the coolant.

[0028] In this embodiment, a thermally conductive gasket 6 is also provided. A thermally conductive gasket 6 capable of abutting against the battery is provided on at least one end surface of the main body 2. By so providing the thermally conductive gasket 6, the thermal conductivity between the main body 2 and the battery can be increased, thereby further improving the heat dissipation efficiency of the battery.

[0029] Embodiment 2:

[0030] like Figure 1 and Figure 2 As shown, a liquid-cooled heat dissipation device includes a base plate 1, and at least one liquid cooling plate described in Example 1 is arranged on the upper end surface of the base plate 1. In this embodiment, six liquid cooling plates are provided, and at least one positioning groove 11 is opened on the base plate 1. The number of the positioning grooves 11 is the same as the number of the liquid cooling plates and corresponds one to one. In this embodiment, the number of the positioning grooves 11 is also six, and the main body 2 is snapped into the positioning groove 11, and the main body 2 and the base plate 1 are fixedly connected by bolts. In this way, the position of the liquid cooling plate can be accurately installed through the arranged positioning grooves 11, and it is avoided that after manually measuring the installation position to complete the installation of the liquid cooling plate, the distance between the liquid cooling plates is deviated when the battery is placed, resulting in the inability to fit tightly with the battery. At the same time, the welding fixation between the liquid cooling plate and the base plate 1 is changed to bolt fixation, which is convenient for personnel to disassemble and adjust the heat dissipation device.

[0031] In this embodiment, a buckle 7 is also included. The buckle 7 is C-shaped. The two inner ends of the buckle 7 can respectively engage the outer end surface of the outermost liquid cooling plate of the heat dissipation device. With such an arrangement, through the arrangement of the buckle 7, after the batteries are placed, the total thickness of the multiple batteries and the liquid cooling plate can be no greater than the inner distance of the buckle 7, ensuring that the battery, the thermal pad 6 and the liquid cooling plate can fit tightly, thereby increasing the stability of the heat dissipation device.

[0032] In this embodiment, the liquid cooling device also includes a liquid inlet mechanism 3 and a liquid outlet mechanism 4. A liquid channel is provided in the main body 2. Both ends of the liquid channel are respectively connected to the liquid inlet mechanism 3 and the liquid outlet mechanism 4. The liquid inlet mechanism 3 and the liquid outlet mechanism 4 are both fixedly connected to the base plate 1. In this arrangement, by fixing the liquid inlet mechanism 3 and the liquid outlet mechanism 4 to the base plate 1, the liquid inlet mechanism 3 and the liquid outlet mechanism 4 can be relatively still with the battery pack when the battery pack is shaken, thereby avoiding leakage of the cooling liquid due to relative movement.

[0033] In this embodiment, the liquid inlet mechanism 3 includes a liquid inlet 31 and a liquid separation channel 32, the liquid inlet 31 is connected to the liquid separation channel 32, and at least one liquid separation port 33 is opened on the liquid separation channel 32, one end of the liquid separation port 33 is connected to the liquid separation channel 32, the number of liquid separation ports 33 is the same as the number of the body 2 and is arranged one by one, and the other end of the liquid separation port 33 is connected to the liquid inlet channel 211; the liquid outlet mechanism 4 includes a liquid outlet 41 and a liquid collection channel 42, the liquid outlet 41 is connected to the liquid collection channel 42, and at least one liquid collection port 43 is opened on the liquid collection channel 42, and the liquid collection One end of the port 43 is connected to the liquid collecting channel 42. The number of the liquid collecting ports 43 is the same as the number of the main bodies 2 and is arranged one by one. The other end of the liquid collecting port 43 is connected to the liquid collecting channel 42. In this way, the coolant flowing into the single liquid inlet 31 can be evenly distributed on multiple main bodies 2 through the set liquid separation channel 32 and the liquid separation port 33. The coolant flowing out of multiple liquid outlets 41 can be collected together through the set liquid collecting channel 42 and the liquid collecting port 43, and then the subsequent coolant circulation is carried out to avoid the coolant leakage problem caused by setting multiple external interfaces.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A liquid cooling plate for an energy storage battery, comprising a body (2), wherein a liquid channel is provided in the body (2), characterized in that: The liquid channel is arranged in an S shape in the main body (2) in the vertical direction, the liquid flows in the liquid channel in a unidirectional manner in the vertical direction, and both ends of the liquid channel are connected to the outside of the main body (2).

2. The liquid cooling plate for energy storage battery according to claim 1, characterized in that: The liquid channel is provided with a liquid inlet channel (211), a connecting channel (212) and a liquid outlet channel (213); the liquid inlet channel (211), the connecting channel (212) and the liquid outlet channel (213) are all arranged horizontally; the liquid channel also includes a first curved channel (214) and a second curved channel (215); two ends of the first curved channel (214) are respectively connected to the liquid inlet channel (211) and the connecting channel (212); two ends of the second curved channel (215) are respectively connected to the liquid outlet channel (213) and the connecting channel (212).

3. The liquid cooling plate for energy storage battery according to claim 2, characterized in that: There are more than two connecting channels (212), and the liquid channel further includes a third curved channel (216). Both ends of the third curved channel (216) are respectively connected to two adjacent connecting channels (212).

4. The liquid cooling plate for energy storage battery according to claim 3, characterized in that: The first curved channel (214), the second curved channel (215) and the third curved channel (216) are all circular tubes bent at 180°.

5. The liquid cooling plate for energy storage battery according to claim 4, characterized in that: A sealing ring (5) is also provided, and the sealing ring (5) is arranged in the liquid inlet channel (211) and the liquid outlet channel (213).

6. The liquid cooling plate for energy storage battery according to claim 1, characterized in that: A heat-conducting gasket (6) is also provided, and a heat-conducting gasket (6) capable of abutting against a battery is provided on at least one end surface of the main body (2).

7. A liquid cooling device, comprising a base plate (1), characterized in that: At least one liquid cooling plate according to claim 1 is arranged on the upper end surface of the base plate (1), and the two ends of the liquid cooling plate are respectively connected to a liquid inlet mechanism (3) and a liquid outlet mechanism (4), one end of the liquid inlet channel (211) is connected to the liquid inlet mechanism (3), and one end of the liquid outlet channel (213) is connected to the liquid outlet mechanism (4).

8. The liquid cooling device according to claim 7, characterized in that: The liquid inlet mechanism (3) comprises a liquid inlet (31) and a liquid separation channel (32), the liquid inlet (31) is connected to the liquid separation channel (32), at least one liquid separation port (33) is provided on the liquid separation channel (32), one end of the liquid separation port (33) is connected to the liquid separation channel (32), the number of the liquid separation ports (33) is the same as the number of liquid cooling plates and is arranged one-to-one, and the other end of the liquid separation port (33) is connected to the liquid inlet channel (211); the liquid outlet mechanism (4) comprises a liquid outlet (41) and a liquid collection channel (42), the liquid outlet (41) is connected to the liquid collection channel (42), at least one liquid collection port (43) is provided on the liquid collection channel (42), one end of the liquid collection port (43) is connected to the liquid collection channel (42), the number of the liquid collection ports (43) is the same as the number of liquid cooling plates and is arranged one-to-one, and the other end of the liquid collection port (43) is connected to the liquid collection channel (42).

9. The liquid cooling device according to claim 8, characterized in that: The liquid inlet mechanism (3) and the liquid outlet mechanism (4) are both fixedly connected to the bottom plate (1). The bottom plate (1) is provided with at least one positioning groove (11). The number of the positioning grooves (11) is the same as the number of the liquid cooling plates and corresponds one to one. The liquid cooling plates are clamped in the positioning grooves (11), and the liquid cooling plates are fixedly connected to the bottom plate (1) by bolts.

10. The liquid cooling device according to claim 9, characterized in that: It also includes a buckle (7) which is C-shaped, and the inner two ends of the buckle (7) can respectively clamp the outer end surface of the outermost liquid cooling plate of the heat dissipation device.

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