Liquid cooling plate, cooling device and charging device

Abstract

The utility model discloses a liquid cooling plate, the liquid cooling plate comprises a liquid cooling plate and fins, the interior of the liquid cooling plate is provided with a flow channel, the flow channel is provided with at least two extension sections and at least one transition section, the transition section is arranged between the two adjacent extension sections and is communicated with the two adjacent extension sections, and the fins are arranged in at least part of the flow channel. The liquid cooling plate provided by the embodiment of the utility model has the advantages of high heat exchange performance and good heat exchange effect.

Description

Technical Field

[0001] This utility model relates to the field of thermal management technology, specifically to a liquid cooling plate, a cooling device, and a charging device. Background Technology

[0002] Currently, the power of charging piles is increasing, and the power of the electronic control components inside the charging piles is also increasing accordingly, requiring heat dissipation for the electronic control components of the charging piles.

[0003] In related technologies, liquid cooling has gradually become the mainstream method for heat dissipation of circuit boards. Heat is dissipated by contacting the cold plate with the electronic control components. The cold plate has an S-shaped coolant flow channel inside, and parallel fins or U-shaped fins are set in the flow channel. However, in this type of cold plate structure, the coolant does not exchange heat sufficiently in the flow channel, and the heat exchange effect is not ideal. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a liquid-cooled plate that has the advantages of high heat exchange performance and good heat exchange effect.

[0005] The liquid cooling plate of this utility model embodiment includes:

[0006] The liquid cooling plate has a flow channel inside, the flow channel has at least two extension sections and at least one transition section, the transition section is located between two adjacent extension sections and connects the two adjacent extension sections;

[0007] Fins, the fins are disposed within at least a portion of the flow channel;

[0008] The fin includes at least one unit extending along the extension direction of the flow channel. The unit includes a connecting section, a first protrusion, and a second protrusion. The first protrusion and the second protrusion are respectively disposed on both sides of the connecting section. There is at least one first protrusion and at least one second protrusion. At least one first protrusion and at least one second protrusion are arranged alternately. Both the first protrusion and the second protrusion are provided with through holes extending along the extension direction of the connecting section.

[0009] The liquid cooling plate of this utility model embodiment has fins in the flow channel. The fins include a first protrusion and a second protrusion disposed on both sides of the connecting section, which is conducive to the formation of turbulence, while increasing the heat exchange area, making the heat exchange more complete, and improving the heat exchange effect of the liquid cooling plate.

[0010] The cooling device of this utility model embodiment includes:

[0011] The body has chambers;

[0012] The first condenser, compressor, throttling element and first heat exchanger are disposed in a chamber. The first heat exchanger has a first flow channel and a second flow channel. The discharge side of the compressor is connected to the first condenser. The first condenser is connected to the throttling element. The throttling element is connected to the first flow channel of the first heat exchanger. The first flow channel is also connected to the suction side of the compressor.

[0013] The liquid cooling plate has at least a portion located within the chamber. The liquid cooling plate is connected to the second flow channel of the first heat exchanger. The interior of the liquid cooling plate has a flow channel with at least two extension sections and at least one transition section. The transition section is located between two adjacent extension sections and connects the two adjacent extension sections.

[0014] Fins, the fins are disposed within at least a portion of the flow channel;

[0015] The fin includes at least one unit extending along the extension direction of the flow channel. The unit includes a connecting section, a first protrusion and a second protrusion. The first protrusion and the second protrusion are respectively disposed on both sides of the connecting section. There is at least one first protrusion and at least one second protrusion. At least one first protrusion and at least one second protrusion are arranged alternately. Both the first protrusion and the second protrusion are provided with through holes extending along the extension direction of the connecting section.

[0016] The drive pump is connected to the second flow channel of the first heat exchanger and the liquid cooling plate.

[0017] The cooling device of this utility model embodiment has fins in the flow channel. The fins include a first protrusion and a second protrusion disposed on both sides of the connecting section, which is conducive to the formation of turbulence, while increasing the heat exchange area, making the heat exchange more complete, and improving the heat exchange effect of the liquid cooling plate.

[0018] The charging device of this utility model embodiment includes:

[0019] The liquid cooling plate has a flow channel inside, the flow channel has at least two extension sections and at least one transition section, the transition section is located between two adjacent extension sections and connects the two adjacent extension sections;

[0020] Fins, the fins are disposed within at least a portion of the flow channel;

[0021] The power device is in contact with the liquid cooling plate, and the liquid cooling plate (3) can exchange heat with the power device.

[0022] The fin includes at least one unit extending along the extension direction of the flow channel. The unit includes a connecting section, a first protrusion, and a second protrusion. The first protrusion and the second protrusion are respectively disposed on both sides of the connecting section. There is at least one first protrusion and at least one second protrusion. At least one first protrusion and at least one second protrusion are arranged alternately. Both the first protrusion and the second protrusion are provided with through holes extending along the extension direction of the connecting section.

[0023] The charging device of this utility model embodiment has fins in the flow channel. The fins include a first protrusion and a second protrusion disposed on both sides of the connecting section, which is conducive to the formation of turbulence, while increasing the heat exchange area, making the heat exchange more complete, and improving the heat exchange effect of the liquid cooling plate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the internal structure of the cooling device according to an embodiment of the present invention.

[0025] Figure 2 This is a front view of the internal structure of the cooling device according to an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the flow channel plate of the liquid cooling plate according to an embodiment of the present invention.

[0027] Figure 4 This is a side view of the cover plate of the liquid cooling plate according to an embodiment of the present utility model.

[0028] Figure 5 This is a schematic diagram of the flow channel on the flow channel plate of the liquid cooling plate according to an embodiment of the present invention.

[0029] Figure 6 This is a front view of the flow channel on the flow channel plate of the liquid cooling plate according to an embodiment of the present utility model.

[0030] Figure 7 yes Figure 5 An enlarged schematic diagram of part A in the middle.

[0031] Reference numerals: 100, body; 200, cooling device; 300, compressor; 400, first heat exchanger; 500, fan; 600, drive pump; 1, chamber; 11, first chamber; 12, second chamber; 21, air inlet; 22, air outlet; 3, liquid cooling plate; 31, flow channel; 311, extension section; 312, transition section; 32, flow channel plate; 321, first guide port; 322, second guide port; 33, cover plate; 331, liquid inlet; 332, liquid outlet; 34, mounting position; 4, first condenser; 5, second condenser; 6, fin; 61, single unit; 611, connecting section; 612, first protrusion; 613, second protrusion; 614, through hole. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] like Figure 1-7 As shown, the liquid cooling plate of this embodiment includes a liquid cooling plate 3 and fins 6. The liquid cooling plate 3 has a flow channel 31 inside, the flow channel 31 having at least two extension sections 311 and at least one transition section 312, the transition section 312 being disposed between two adjacent extension sections 311 and communicating with the two adjacent extension sections 311. The fins 6 are disposed within at least a portion of the flow channel 31.

[0034] The flow channels on the liquid cooling plate are equipped with fins, which helps to form turbulent flow, while increasing the heat exchange area, making heat exchange more complete, and improving the heat exchange effect of the liquid cooling plate.

[0035] Specifically, at least two extension sections 311 are arranged opposite to each other and spaced apart, and a transition section 312 connects one end of one extension section 311 and the other end of the other extension section 311, forming at least one S. The flow channel 31 has at least one S-shape or multiple S-shapes connected in series.

[0036] The liquid cooling plate of this embodiment has a flow channel 31, which prolongs the flow time of the coolant in the flow channel 31 and improves the heat exchange performance of the liquid cooling plate 3. The fins 6 further prolong the flow time of the coolant in the flow channel 31 and improve the turbulence of the coolant, so as to achieve sufficient heat exchange and improve the heat exchange effect of the liquid cooling plate 3.

[0037] Specifically, the coolant is water and ethylene glycol.

[0038] In some embodiments, the fin 6 includes at least one unit 61, which extends along the extension direction of the flow channel 31. The unit 61 includes a connecting section 611, a first protrusion 612, and a second protrusion 613. The first protrusion 612 and the second protrusion 613 are respectively disposed on both sides of the connecting section 611. At least one first protrusion 612 and at least one second protrusion 613 are provided. At least one first protrusion 612 and at least one second protrusion 613 are arranged alternately. Both the first protrusion 612 and the second protrusion 613 are provided with through holes 614 extending along the extension direction of the connecting section 611.

[0039] Specifically, the shape of the unit 61 is generally sinusoidal. The distance between the first protrusion 612 or the second protrusion 613 and the connecting section 611 along its length is 2mm to 3mm. The distance between the end of the first protrusion 612 furthest from the connecting section 611 and the connecting section 611, or the distance between the end of the second protrusion 613 furthest from the connecting section 611 and the connecting section 611, is 3mm to 5mm. The distance between the first protrusion 612 or the second protrusion 613 in the concave direction of the flow channel 31 is 5mm to 10mm. This arrangement increases the turbulence of the coolant within the flow channel 31, improves the adequacy of heat exchange, and ensures that the heating elements mounted on the liquid cooling plate 3 can operate normally within the required temperature range.

[0040] In some embodiments, the liquid cooling plate 3 includes a flow channel plate 32 and a cover plate 33, which are configured to cooperate. The flow channel 31 is located on one side of the flow channel plate 32 adjacent to the cover plate 33 and is recessed in a direction away from the cover plate 33. The flow channel 31 is simple to form and easy to manufacture.

[0041] The cover plate 33 has an inlet 331 and an outlet 332. The inlet 331 is connected to one end of the flow channel 31, and the outlet 332 is connected to the other end of the flow channel 31.

[0042] Specifically, the inlet 331 is located below the outlet 332, one end of the flow channel 31 is located below the other end of the flow channel 31 and communicates with the inlet 331, and the other end of the flow channel 31 communicates with the outlet 332. When coolant is introduced into the flow channel 31 through the inlet 331, the coolant flows towards the outlet 332 at a slower speed due to its own gravity, which can effectively and fully contact the flow channel plate 32 and cool and dissipate heat from the flow channel plate 32, thereby improving heat dissipation efficiency.

[0043] In some embodiments, the inlet 331 is located above the outlet 332, one end of the flow channel 31 is located above the other end of the flow channel 31 and communicates with the inlet 331, and the other end of the flow channel 31 communicates with the outlet 332. When coolant is introduced into the flow channel 31 through the inlet 331, the flow rate of the coolant in the flow channel 31 is relatively fast, which accelerates the circulation of coolant in the flow channel 31 and can also improve heat dissipation efficiency.

[0044] In some embodiments, the flow channel plate 32 has a first flow guide port 321 and a second flow guide port 322. The first flow guide port 321 is located at one end of the flow channel 31 and is recessed in a direction away from the cover plate 33. The first flow guide port 321 is connected to the liquid inlet 331. The second flow guide port 322 is located at the other end of the flow channel 31 and is recessed in a direction away from the cover plate 33. The second flow guide port 322 is connected to the liquid outlet 332.

[0045] Specifically, the formation of the first guide port 321 and the second guide port 322 is simple and easy to manufacture. When coolant is introduced into the flow channel 31 through the liquid inlet 331, the coolant is first stored at the first guide port 321, and then flows from the first guide port 321 to the flow channel 31. When the coolant in the flow channel 31 needs to flow out from the liquid outlet 332, it is first stored at the second guide port 322, and then flows from the second guide port 322 to the liquid outlet 332. By setting the first guide port 321 and the second guide port 322, the impact of the coolant on the fin 6 is reduced, and the structure of the fin 6 is guaranteed.

[0046] In some embodiments, the flow channel plate 32 has a mounting position 34 on the side away from the cover plate 33. The mounting position 34 is recessed in the thickness direction of the flow channel plate 32, and the mounting position 34 roughly corresponds to the position of the flow channel 31.

[0047] Specifically, the mounting position 34 is a recess, a boss, or a stud on the flow channel plate 32. The heat-generating components are mounted on the side of the flow channel plate 32 away from the cover plate 33 through the mounting position 34. The heat transferred from the heat-generating components to the flow channel plate 32 is carried away by the coolant in the flow channel 31, so as to dissipate heat from the heat-generating components.

[0048] Specifically, the coolant circulates within the flow channel 31, improving the heat dissipation efficiency on the flow channel plate 32.

[0049] In some embodiments, the liquid cooling plate 3 further includes an insulating layer (not shown) which is laid on at least one side of the liquid cooling plate 3.

[0050] Specifically, the insulating layer is an insulating plastic layer with a thickness of 70 to 100 micrometers to ensure the insulation between the liquid cooling plate 3 and the heat-generating components.

[0051] The cooling device of this embodiment includes a body 100, a first condenser 4, a compressor 300, a throttling element, a first heat exchanger 400, a drive pump 600, a liquid cooling plate 3, and fins 6. The body 100 has a chamber 1 extending vertically. The first condenser 4, compressor 300, throttling element, and first heat exchanger 400 are disposed within the chamber 1. The first heat exchanger 400 has a first flow channel (not shown) and a second flow channel (not shown). The exhaust side of the compressor 300 is connected to the first condenser 4, the first condenser 4 is connected to the throttling element, the throttling element is connected to the first flow channel of the first heat exchanger 400, and the first flow channel is also connected to the suction side of the compressor 300. The drive pump is disposed within the chamber 1 and connects the second flow channel of the first heat exchanger 400 to the liquid cooling plate 3.

[0052] Specifically, the compressor 300 is used to draw in low-temperature, low-pressure refrigerant gas, and after the motor drives the piston to compress it, it discharges high-temperature, high-pressure refrigerant gas into the exhaust pipe, providing power for the refrigeration cycle.

[0053] The drive pump 600 is connected to the inlet 331 and the outlet 332 to pump coolant into the flow channel 31 through the inlet 331.

[0054] The first heat exchanger 400 is generally a plate heat exchanger, which has the advantages of high heat exchange efficiency, low heat loss, compact and lightweight structure.

[0055] The cooling device of this utility model embodiment has a simple structure. The arrangement of the flow channel 31 on the liquid cooling plate 3 and the fins 6 inside the flow channel 31 extends the flow time of the coolant in the flow channel 31, improves the heat exchange performance of the liquid cooling plate 3, and ensures the cooling effect of the cooling device.

[0056] One end of the first condenser 4 is located at the upper part of the chamber 1, and the other end of the first condenser 4 extends towards the lower part of the chamber 1 and bends along the first direction, forming an L-shape. Specifically, the first condenser 4 is arranged in an L-shape inside the chamber 1, which realizes the installation of the first condenser 4 in a limited space and ensures the heat dissipation requirements of the first condenser 4.

[0057] At least a portion of the liquid cooling plate 3 is located within the chamber 1. The liquid cooling plate 3 is connected to the second flow channel portion of the first heat exchanger 400. The interior of the liquid cooling plate 3 has a flow channel 31, which has at least two extension sections 311 and at least one transition section 312. The transition section 312 is located between and connects to two adjacent extension sections 311. Fins 6 are disposed within at least a portion of the flow channel 31.

[0058] Specifically, the arrangement of the flow channel 31 on the liquid cooling plate 3 extends the flow time of the coolant within the flow channel 31, thereby improving the heat exchange performance of the liquid cooling plate 3. The arrangement of fins 6 within the flow channel 31 further extends the flow time of the coolant within the flow channel 31, thereby further improving the heat exchange performance of the liquid cooling plate 3, ensuring the cooling effect of the cooling device 200, and meeting the heat dissipation requirements of the first condenser 4.

[0059] In some embodiments, the cooling device 200 further includes a second condenser 5, which is disposed in the chamber 1. The second condenser 5 and the first condenser 4 are arranged side by side along a first direction. The second condenser 5 and the first condenser 4 have the same shape, specifically, they are L-shaped.

[0060] Specifically, the second condenser 5 and the first condenser 4 are arranged side by side along the first direction and are both L-shaped, which allows for the placement of larger components in a limited space, making reasonable use of space while ensuring the heat dissipation power of the condensers.

[0061] In some embodiments, chamber 1 includes a first chamber 111 and a second chamber 121 that are interconnected, with the first chamber 111 located above the second chamber 121, and a first condenser 4 disposed within the first chamber 111. The cooling device 200 also includes a compressor 300, a drive pump 600, a first heat exchanger 400, and a fan 500. The compressor 300, drive pump 600, and first heat exchanger 400 are all disposed within the second chamber 121, while the drive pump 600 is disposed within the first chamber 111.

[0062] The fan 500 is located inside the chamber 1. The main body 100 also has an air inlet 21 and an air outlet 22. The air inlet 21 and the air outlet 22 are connected to the chamber 1. The fan 500 draws outside air into the chamber 1 through the air inlet 21 and discharges the air in the chamber 1 from the air outlet 22.

[0063] Specifically, the air inlet 21 is located on one side of the main body 100 and extends in the vertical direction, while the air outlet 22 is located on the other side of the main body 100 and extends in the vertical direction. The air inlet 21 and the air outlet 22 are arranged opposite to each other. Air enters the chamber 1 from the air inlet 21 and is discharged from the air outlet 22, which realizes secondary heat dissipation for the heat-generating components in the chamber 1. Together with the coolant, it effectively improves the heat dissipation efficiency of the cooling device 200.

[0064] Specifically, four fans 500 are provided, and the four fans 500 are arranged at intervals in the vertical direction at the air outlet 22. The fans 500 meet the air volume requirements by operating at low speed and with noise levels below 60 decibels.

[0065] The charging device of this utility model embodiment includes a liquid cooling plate 3, fins 6, and power devices.

[0066] The liquid cooling plate 3 has a flow channel 31 inside, which has at least two extension sections 311 and at least one transition section 312. The transition section 312 is located between and connects two adjacent extension sections 311. Fins 6 are disposed within at least a portion of the flow channel 31. The power device is in contact with the liquid cooling plate 3, and the liquid cooling plate can dissipate heat from the power device.

[0067] Specifically, the liquid cooling plate 3 is located on one side of the charging device and extends in the vertical direction. The flow channel plate 32 of the liquid cooling plate 3 faces the inside of the charging device to cool the power device, and the cover plate 33 of the liquid cooling plate 3 faces the outside of the charging device to facilitate the injection of coolant into the flow channel 31.

[0068] In this embodiment of the charging device, the flow channel 31 on the liquid cooling plate 3 extends the flow time of the coolant within the flow channel 31, thereby improving the heat exchange performance of the liquid cooling plate 3. The fins 6 provided within the flow channel 31 further extend the flow time of the coolant within the flow channel 31, thereby further improving the heat exchange performance of the liquid cooling plate 3, ensuring the cooling effect of the cooling device 200, and meeting the heat dissipation requirements of the power device.

[0069] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A liquid-cooled plate, characterized in that, The liquid cooling plate (3) has flow channels (31) inside. The flow channel (31) has at least two extension sections (311) and at least one transition section (312), the transition section (312) being disposed between two adjacent extension sections (311) and connecting the two adjacent extension sections (311); The liquid cooling plate includes fins (6) disposed within at least a portion of the flow channel (31); The fin (6) includes at least one unit (61) extending along the extension direction of the flow channel (31). The unit (61) includes a connecting section (611), a first protrusion (612), and a second protrusion (613). The first protrusion (612) and the second protrusion (613) are respectively provided on both sides of the connecting section (611). There is at least one first protrusion (612) and at least one second protrusion (613). At least one first protrusion (612) and at least one second protrusion (613) are arranged alternately. Both the first protrusion (612) and the second protrusion (613) are provided with through holes (614) extending along the extension direction of the connecting section (611).

2. The liquid cooling plate according to claim 1, characterized in that, The liquid cooling plate (3) includes a flow channel plate (32) and a cover plate (33). The flow channel plate (32) and the cover plate (33) are configured to cooperate. The flow channel (31) is located on one side of the flow channel plate (32) adjacent to the cover plate (33) and is recessed in a direction away from the cover plate (33). The cover plate (33) has a liquid inlet (331) and a liquid outlet (332). The liquid inlet (331) is connected to one end of the flow channel (31), and the liquid outlet (332) is connected to the other end of the flow channel (31).

3. The liquid cooling plate according to claim 2, characterized in that, The inlet (331) is located below the outlet (332).

4. The liquid cooling plate according to claim 3, characterized in that, The flow channel plate (32) has a first flow guide port (321) and a second flow guide port (322). The first flow guide port (321) is located at one end of the flow channel (31) and is recessed in a direction away from the cover plate (33). The first flow guide port (321) is connected to the liquid inlet (331). The second flow guide port (322) is located at the other end of the flow channel (31) and is recessed in a direction away from the cover plate (33). The second flow guide port (322) is connected to the liquid outlet (332).

5. The liquid cooling plate according to claim 4, characterized in that, The flow channel plate (32) has a mounting position (34) on the side away from the cover plate (33). The mounting position (34) is recessed in the thickness direction of the flow channel plate (32), and the mounting position (34) roughly corresponds to the position of the flow channel (31).

6. The liquid-cooled plate according to any one of claims 1-5, characterized in that, The liquid cooling plate (3) also includes an insulating layer, which is laid on at least one side of the liquid cooling plate (3).

7. A cooling device, characterized in that, include: A body (100) having a chamber (1); The first condenser (4), compressor (300), throttling element and first heat exchanger (400) are disposed in the chamber (1). The first heat exchanger (400) has a first flow channel and a second flow channel. The exhaust side of the compressor (300) is connected to the first condenser (4). The first condenser (4) is connected to the throttling element. The throttling element is connected to the first flow channel of the first heat exchanger (400). The first flow channel is also connected to the suction side of the compressor (300). A liquid cooling plate (3), at least a portion of which is located within the chamber (1), the liquid cooling plate (3) is connected to the second flow channel of the first heat exchanger (400), the interior of the liquid cooling plate (3) has a flow channel (31), the flow channel (31) has at least two extension sections (311) and at least one transition section (312), the transition section (312) is disposed between two adjacent extension sections (311) and communicates with the two adjacent extension sections (311); Fins (6) are disposed within at least a portion of the flow channel (31); The fin (6) includes at least one unit (61), which extends along the extension direction of the flow channel (31). The unit (61) includes a connecting section (611), a first protrusion (612), and a second protrusion (613). The first protrusion (612) and the second protrusion (613) are respectively provided on both sides of the connecting section (611). There is at least one first protrusion (612) and at least one second protrusion (613). At least one first protrusion (612) and at least one second protrusion (613) are arranged alternately. Both the first protrusion (612) and the second protrusion (613) are provided with through holes (614) that penetrate along the extension direction of the connecting section (611). A drive pump (600) is connected to the second flow channel of the first heat exchanger (400) and the liquid cooling plate (3).

8. The cooling device according to claim 7, characterized in that, One end of the first condenser (4) is located at the upper part of the chamber (1), and the other end of the first condenser (4) extends toward the lower part of the chamber (1) and bends along a first direction.

9. The cooling device according to claim 8, characterized in that, It also includes a second condenser (5), which is disposed in the chamber (1). The second condenser (5) and the first condenser (4) are arranged side by side along the first direction. The second condenser (5) and the first condenser (4) have the same shape.

10. A charging device, characterized in that, include: Liquid cooling plate (3), the interior of the liquid cooling plate (3) has a flow channel (31), the flow channel (31) has at least two extension sections (311) and at least one transition section (312), the transition section (312) is disposed between two adjacent extension sections (311) and connects the two adjacent extension sections (311); Fins (6) are disposed within at least a portion of the flow channel (31); The fin (6) includes at least one unit (61), which extends along the extension direction of the flow channel (31). The unit (61) includes a connecting section (611), a first protrusion (612), and a second protrusion (613). The first protrusion (612) and the second protrusion (613) are respectively provided on both sides of the connecting section (611). There is at least one first protrusion (612) and at least one second protrusion (613). At least one first protrusion (612) and at least one second protrusion (613) are arranged alternately. Both the first protrusion (612) and the second protrusion (613) are provided with through holes (614) that penetrate along the extension direction of the connecting section (611). The power device is disposed in contact with the liquid cooling plate, and the liquid cooling plate (3) is capable of heat exchange with the power device.

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