Liquid cooling heat dissipation plate structure of charging module and multidirectional current sharing distribution method

Abstract

The invention discloses a liquid cooling heat dissipation plate structure of a charging module and a multidirectional flow equalizing distribution method, and belongs to the related technical field of new energy automobiles, the liquid cooling heat dissipation plate structure comprises a lower liquid cooling plate and an upper liquid cooling plate, the lower liquid cooling plate and the upper liquid cooling plate are fixedly connected through a locking piece, and through heat dissipation holes are uniformly reserved in the lower liquid cooling plate and the upper liquid cooling plate; the liquid storage box is arranged below the lower liquid cooling plate, a water pump is installed in the liquid storage box, and the top of the water pump is connected with the lower end face of the lower liquid cooling plate through a liquid conveying pipe; the lower liquid cooling plate and the upper liquid cooling plate are connected with each other through a liquid conveying assembly and a liquid storage box. According to the liquid cooling heat dissipation plate structure of the charging module and the multi-directional flow equalizing distribution method, the multiple liquid cooling channels are arranged, the cooling effect can be improved by transmitting from the middle of the liquid cooling plate to the periphery, cooling liquid can be well cooled in the recycling process, and meanwhile the flow of the cooling liquid can be adjusted according to the heat dissipation requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and specifically to a liquid-cooled heat dissipation plate structure and a multi-directional uniform flow distribution method for a charging module. Background Art

[0002] The charging module is a main component of new energy vehicles. During the charging process and the long-term driving process of the vehicle, the charging module will generate relatively high heat. Therefore, a liquid-cooled heat dissipation plate needs to be set at the bottom of the charging module for cooling. The inside of the liquid-cooled heat dissipation plate circulates coolant, which can take out the heat of the charging module to achieve a cooling effect. For example, a liquid-cooled plate of an in-vehicle charger with the publication number of CN214396451U, which includes an upper liquid-cooled plate and a lower liquid-cooled plate; among them: a flow channel is formed on the lower liquid-cooled plate, and the flow channel is respectively connected to a water inlet and a water outlet; a boss is provided in the flow channel; the area where the upper liquid-cooled plate and the lower liquid-cooled plate are in contact is hermetically connected to form a closed flow channel space, which mainly solves the space limitation of the application of the air-cooled heat dissipation mechanism, and at the same time solves the disadvantages of uneven liquid flow and uneven heat dissipation of the conventional liquid-cooled plate. It is light in weight and has good cooling effect; For example, an in-vehicle wireless charging module with an integrated liquid-cooled plate with the publication number of CN222116569U, including: a charging module upper cover and a cold plate. The cold plate is arranged on the outer wall of the charging module upper cover and is used for cooling the charging module; the cold plate includes a cold plate bottom plate and a cold plate cover plate. The cold plate bottom plate is arranged on the charging module upper cover. An inlet and an outlet are provided on the cold plate bottom plate, and a cooling flow channel is arranged in the cold plate bottom plate. The inlet and the outlet are respectively communicated with both ends of the cooling flow channel. The cold plate cover plate covers the cold plate bottom plate, and the cold plate cover plate is used for sealing the cooling flow channel. For the in-vehicle wireless charging module with the integrated liquid-cooled plate, the liquid-cooled plate is integrated with the upper cover. 50% ethylene glycol solution is introduced into the cooling flow channel in the liquid-cooled plate for cooling, which can achieve full-surface cooling of the wireless charging module. The flow channel is arranged according to the layout of the components, which can reduce the heat generation problem of the coil and the heating components in the wireless charging. It lies in increasing the stability of the wireless charging. However, the above liquid-cooled plate still has the following disadvantages in actual use: 1. Most of the traditional liquid-cooled heat dissipation plates are provided with a single channel inside. The coolant bends and circulates in the channel to cool the charging module. When the coolant flows to half of the distance, it has absorbed a large amount of heat, resulting in the inability to achieve a cooling effect during the latter half of the circulation. And during the recovery process of the heated coolant, the heat dissipation effect is poor, resulting in that the coolant flowing back into the coolant storage box still contains relatively high heat, affecting the subsequent circulation use of the coolant; 2. At the same time, when the coolant in the traditional liquid-cooled heat dissipation plate circulates, it is impossible to adjust the flow rate of the coolant according to the heat dissipation requirements, and the circulation amount of the coolant is always a fixed value.

[0003] In view of the above problems, it is urgent to innovate and design on the basis of the original liquid-cooled heat dissipation plate. Summary of the Invention

[0004] The purpose of the present invention is to provide a liquid-cooled heat dissipation plate structure and a multi-directional uniform flow distribution method for a charging module, so as to solve the problems proposed in the above background technology that most of the traditional liquid-cooled heat dissipation plates are provided with a single channel inside, and the heat dissipation effect is poor during the recovery process of the heated coolant, and at the same time, the traditional liquid-cooled heat dissipation plate cannot adjust the flow rate of the coolant according to the heat dissipation requirements.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A liquid-cooled heat dissipation plate structure for a charging module, including a lower liquid-cooled plate and an upper liquid-cooled plate, the lower liquid-cooled plate and the upper liquid-cooled plate are fixedly connected by a locking member, and through holes for heat dissipation are uniformly reserved inside the lower liquid-cooled plate and the upper liquid-cooled plate, and a liquid-cooled channel is opened on the surface where the lower liquid-cooled plate and the upper liquid-cooled plate are in contact; It further includes: a liquid storage box, arranged below the lower liquid-cooled plate, a water pump is installed inside the liquid storage box, and the top of the water pump is connected to the lower end surface of the lower liquid-cooled plate through an infusion pipe, and heat dissipation fins are fixedly arranged at equal intervals on the outer wall of the liquid storage box; The lower liquid-cooled plate and the upper liquid-cooled plate are connected to the liquid storage box through an infusion component, and the infusion component is used to recover the heated coolant and transmit it into the liquid storage box.

[0006] Preferably, the liquid-cooled channels are distributed at equal angles between the lower liquid-cooled plate and the upper liquid-cooled plate, and the liquid-cooled channels are curved, and an infusion cavity is arranged at one end where the equally-angled liquid-cooled channels are close to each other. At the same time, the infusion cavity is opened at the center of the lower liquid-cooled plate, and the infusion cavity is communicated with the infusion pipe. Through the setting of multiple liquid-cooled channels, the heat dissipation effect of the liquid-cooled plate on the charging module can be improved.

[0007] Preferably, the infusion component includes a shunt pipe fixed to the sides of the lower liquid-cooled plate and the upper liquid-cooled plate, and one end of the shunt pipe away from the lower liquid-cooled plate and the upper liquid-cooled plate is fixedly connected to a connecting pipe, and a one-way valve is arranged at the connection between the shunt pipe and the connecting pipe, and the heated coolant can flow through the shunt pipe into the inside of the connecting pipe.

[0008] Preferably, the connecting pipe is curved, and the liquid-cooled channels are communicated with each other through the shunt pipe and the connecting pipe, and the connecting pipe is communicated with a collecting pipe and a return pipe, and the return pipe is fixed between the liquid storage box and the collecting pipe. Setting the connecting pipe to be curved can cool down the coolant during the recovery process.

[0009] Preferably, the disconnection part of the collecting pipe is fixedly connected by a hollow ball, and the hollow balls are evenly distributed on the collecting pipe, and the hollow balls are made of stainless steel. Through the setting of the hollow balls, the coolant during the recovery process can be further cooled down.

[0010] Preferably, a metal sheet is arranged inside the hollow ball, and the edge of the metal sheet is fixedly connected to one end of the elastic rope, and the other end of the elastic rope is fixed to the inner wall of the hollow ball. When the coolant impacts the metal sheet, it can drive the metal sheet to shake through the elastic rope, playing a role in stirring the coolant.

[0011] Preferably, a fixing cavity is formed inside the upper liquid cooling plate, an airbag is pasted on the inner top surface of the fixing cavity, a guiding plate is pasted and attached to the lower end surface of the airbag, and both ends of the guiding plate are slidably attached to the inner wall of the fixing cavity. When the high heat of the charging module is transferred to the airbag, the airbag can expand.

[0012] Preferably, a fixing rod penetrates through the lower part of the upper liquid cooling plate, the fixing rod is slidably connected to the upper liquid cooling plate, a connection box is fixed to the bottom of the fixing rod, and the top of the connection box is connected to the upper liquid cooling plate through a spring. The expanded airbag pushes the fixing rod and the connection box to descend.

[0013] Preferably, the edge of the connection box is slidably attached to the inner wall of the infusion cavity, the bottom of the connection box is open, fixing holes are reserved at equal angles on the side surface of the connection box, and the infusion cavity is communicated with the liquid cooling channel through the fixing holes. When the connection box descends to different positions, the transmission of different flow rates of the coolant is realized.

[0014] A multi-directional uniform flow distribution method for the liquid cooling heat dissipation plate structure of a charging module, the multi-directional uniform flow distribution method comprising the following steps: Step 1: When a new energy vehicle is charging or driving for a long time, the temperature generated by its charging module is relatively high. When the high heat is transferred to the position of the airbag through the upper liquid cooling plate, the airbag can be heated and expanded, thereby pushing the fixing rod and the connection box to descend, so that the fixing holes are communicated with the liquid cooling channel and the infusion cavity, so that the water pump can operate to transport the coolant in the liquid storage box to the liquid cooling channel through the liquid infusion pipe, realizing the cooling of the charging module; Step 2: Since the liquid cooling channels are distributed at equal angles, the coolant is dispersed from the middle of the liquid cooling plate to the surroundings during flow, realizing multi-directional uniform flow distribution, which can improve the cooling effect and avoid the situation that the coolant always flows in a single liquid cooling channel after being heated and fails to achieve the heat dissipation effect; Step 3: The heated coolant can flow back to the liquid storage box through the shunt pipe, the connection pipe, the collecting pipe and the return pipe for reuse, and the coolant can be cooled when flowing in the connection pipe and the collecting pipe; Step 4: When the coolant flows through the collecting pipe, it can impact the metal sheet to shake through the elastic rope, and the vibration of the vehicle during driving can further drive the metal sheet to shake. By stirring the coolant in the collecting pipe through the metal sheet, the heated coolant can be cooled.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The liquid cooling heat dissipation plate structure and multi-directional uniform flow distribution method of the charging module are provided with a plurality of liquid cooling channels. Transmitting from the middle to the periphery of the liquid cooling plate can improve the cooling effect, and the coolant can also be well cooled during the recycling process. At the same time, the flow rate of the coolant can be adjusted according to the heat dissipation requirements. The specific content is as follows: 1. Through the equiangularly distributed liquid cooling channels, the coolant is transported from the middle to the periphery of the liquid cooling plate, which can absorb the heat generated by the charging module to a greater extent and improve the cooling effect; 2. When the coolant passes through the bent connecting pipe, its return speed can be slowed down, so that it can be cooled during the recycling process. When the coolant flows through the collecting pipe into the hollow ball, the impact of the coolant on the metal sheet can drive the metal sheet to vibrate through the elastic rope. And the bumps generated during the vehicle's driving can also drive the metal sheet to vibrate. When the metal sheet vibrates, it has a stirring effect on the recycled coolant, further cooling the coolant; 3. The airbag expands when heated, driving the guiding plate to slide down, and then pushing the fixing rod and the connecting box to slide down synchronously, so that the fixing hole can communicate with the liquid cooling channel, and thus the coolant can flow into the liquid cooling channel to dissipate heat from the charging module; Furthermore, since the heat transferred by the charging module is different, the expansion amplitude of the airbag is also different, and the height of the connecting box pushed down is also different, so that the size of the coincidence between the fixing hole and the liquid cooling channel changes correspondingly, and thus the flow rate of the coolant flowing into the liquid cooling channel can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic cross-sectional structure diagram of the lower liquid cooling plate of the present invention; Figure 3 is a schematic diagram of the connecting pipe structure of the present invention; Figure 4 is a schematic cross-sectional structure diagram of the connecting box of the present invention; Figure 5 is a schematic diagram of the structure after the airbag of the present invention expands; Figure 6 is a schematic diagram of the connecting box structure of the present invention; Figure 7 is a schematic cross-sectional structure diagram of the upper liquid cooling plate of the present invention; Figure 8 is a schematic cross-sectional structure diagram of the whole of the present invention; Figure 9 is a schematic cross-sectional structure diagram of the hollow ball of the present invention.

[0017] In the figure: 1. Lower liquid cooling plate; 2. Upper liquid cooling plate; 3. Locking member; 4. Heat dissipation holes; 5. Liquid cooling channels; 6. Liquid infusion cavity; 7. Liquid infusion pipe; 8. Water pump; 9. Liquid storage box; 10. Heat sink; 11. Shunt pipe; 12. Connecting pipe; 13. Collection pipe; 14. Hollow ball; 15. Metal sheet; 16. Elastic rope; 17. Return pipe; 18. Fixed cavity; 19. Airbag; 20. Guide plate; 21. Fixed rod; 22. Connecting box; 23. Fixed hole. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-9 , the present invention provides the following technical solutions: Embodiment 1: To solve the problems existing in the prior art, therefore, in this embodiment, through the following technical solutions, the liquid cooling heat dissipation plate structure of the charging module includes a lower liquid cooling plate 1 and an upper liquid cooling plate 2. The lower liquid cooling plate 1 and the upper liquid cooling plate 2 are fixedly connected by a locking member 3. And through holes for heat dissipation 4 are uniformly reserved inside the lower liquid cooling plate 1 and the upper liquid cooling plate 2, and a liquid cooling channel 5 is provided on the surface where the lower liquid cooling plate 1 and the upper liquid cooling plate 2 are in contact; it also includes: a liquid storage box 9, which is arranged below the lower liquid cooling plate 1. A water pump 8 is installed inside the liquid storage box 9, and the top of the water pump 8 is connected to the lower end surface of the lower liquid cooling plate 1 through a liquid infusion pipe 7. And heat sinks 10 are fixedly arranged at equal intervals on the outer wall of the liquid storage box 9; the lower liquid cooling plate 1 and the upper liquid cooling plate 2 are connected to the liquid storage box 9 through an infusion assembly, and the infusion assembly is used to recover the heated coolant and transmit it into the liquid storage box 9.

[0020] Most of the existing liquid cooling heat dissipation plates are provided with a single channel inside. The coolant bends and flows in the channel to cool the charging module. When the coolant flows to half of the distance, it has absorbed a large amount of heat, resulting in the inability to achieve the cooling effect during the latter half of the flow, as Figures 1-2 and Figure 8As shown, the liquid cooling channels 5 are equally angularly distributed between the lower liquid cooling plate 1 and the upper liquid cooling plate 2, and the liquid cooling channels 5 are curved. At one end where the equally angularly distributed liquid cooling channels 5 are close to each other, there is a liquid infusion cavity 6. Meanwhile, the liquid infusion cavity 6 is opened at the center of the lower liquid cooling plate 1, and the liquid infusion cavity 6 is communicated with the liquid infusion pipe 7. After the water pump 8 operates, it can transfer the coolant in the liquid storage box 9 to the liquid infusion cavity 6 through the liquid infusion pipe 7, and then transfer it to different liquid cooling channels 5 through the fixing holes 23 respectively. Through the equally angularly distributed liquid cooling channels 5, the coolant is conveyed from the middle of the liquid cooling plate to the surroundings, which can absorb the heat generated by the charging module to a greater extent and improve the cooling effect.

[0021] Embodiment 2: During the recovery process of the coolant in the existing liquid cooling heat dissipation plate after being heated, the heat dissipation effect is poor, resulting in the coolant still containing relatively high heat when flowing back to the coolant storage box, which affects the subsequent circulation use of the coolant. Therefore, in this embodiment, the following technical solutions are adopted, such as Figures 2-3 and Figures 8-9As shown in the figure, the infusion assembly includes a shunt pipe 11 fixed to the sides of the lower liquid cooling plate 1 and the upper liquid cooling plate 2. One end of the shunt pipe 11 away from the lower liquid cooling plate 1 and the upper liquid cooling plate 2 is fixedly connected to a connecting pipe 12, and a one-way valve is provided at the connection between the shunt pipe 11 and the connecting pipe 12. The connecting pipe 12 is bent, and the liquid cooling channel 5 is interconnected through the shunt pipe 11 and the connecting pipe 12. The connecting pipe 12 is interconnected with a collecting pipe 13 and a return pipe 17. The return pipe 17 is fixed between the liquid storage box 9 and the collecting pipe 13. The disconnection of the collecting pipe 13 is fixedly connected by a hollow ball 14, and the hollow balls 14 are equally spaced on the collecting pipe 13. The hollow balls 14 are made of stainless steel. A metal sheet 15 is arranged inside the hollow ball 14. One end of the edge of the metal sheet 15 is fixedly connected to one end of an elastic cord 16, and the other end of the elastic cord 16 is fixed to the inner wall of the hollow ball 14. The heated coolant can flow into the connecting pipe 12 from the shunt pipe 11 at different angles. When the coolant is in the connecting pipe 12, the bent connecting pipe 12 can slow down the return speed of the coolant, enabling it to dissipate heat during the recovery process. When the coolant flows through the collecting pipe 13 into the interior of the hollow ball 14, the impact of the coolant on the metal sheet 15 can drive the metal sheet 15 to vibrate through the elastic cord 16. Also, the bumps generated during the vehicle's driving can drive the metal sheet 15 to vibrate through the elastic cord 16. When the metal sheet 15 vibrates, it has a stirring effect on the recovered coolant. Since the storage space inside the hollow ball 14 is relatively large and the coolant does not completely fill the interior of the hollow ball 14, when stirring the coolant, it can contact the inner walls at other positions of the hollow ball 14. Due to the temperature difference between the inner and outer walls of the hollow ball 14, the positions not in contact with the coolant have a lower temperature. The coolant absorbs the low temperature of the hollow ball 14 by contacting the upper inner wall of the hollow ball 14, which can further cool the coolant, ensuring that the recovered coolant does not contain excessive heat. Then, the coolant flows back into the liquid storage box 9 through the return pipe 17 for recycling.

[0022] Embodiment 3: When the existing liquid cooling heat sink has the coolant flowing inside, it is unable to adjust the flow rate of the coolant according to the heat dissipation requirements, and the flow rate of the coolant is always a fixed value. Therefore, this embodiment adopts the following technical solutions, as Figures 4-7As shown in the figure, a fixing cavity 18 is formed inside the upper liquid cooling plate 2, and an airbag 19 is pasted on the inner top surface of the fixing cavity 18. A guiding plate 20 is pasted and attached to the lower end surface of the airbag 19. At the same time, both ends of the guiding plate 20 are in sliding fit with the inner wall of the fixing cavity 18. A fixing rod 21 penetrates through the lower part of the upper liquid cooling plate 2. The fixing rod 21 is in sliding connection with the upper liquid cooling plate 2. A connection box 22 is fixed to the bottom of the fixing rod 21. At the same time, the top of the connection box 22 is connected to the upper liquid cooling plate 2 through a spring. The edge of the connection box 22 is in sliding fit with the inner wall of the liquid infusion cavity 6. The bottom of the connection box 22 is open. Fixing holes 23 are reserved at equal angles on the side surface of the connection box 22. At the same time, the liquid infusion cavity 6 is communicated with the liquid cooling channel 5 through the fixing holes 23. The liquid cooling plate is installed at the bottom of the charging module of the vehicle. Therefore, after the charging module generates heat, the heat can be transferred to the fixing cavity 18 through the upper liquid cooling plate 2. The airbag 19 expands due to heat and drives the guiding plate 20 to slide down, thereby pushing the fixing rod 21 extending into the fixing cavity 18 to slide down. The fixing rod 21 drives the connection box 22 to slide down synchronously, releasing the blockage of the liquid cooling channel 5, so that the fixing holes 23 can be communicated with the liquid cooling channel 5. In this way, the coolant pumped out by the water pump 8 can flow into the liquid cooling channel 5 to realize the heat dissipation of the charging module. Since the heat transferred by the charging module is different, the expansion amplitude of the airbag 19 is also different, and the descending height of the connection box 22 pushed is also different, so that the size of the coincidence between the fixing holes 23 and the liquid cooling channel 5 changes correspondingly. In this way, the flow rate of the coolant flowing into the liquid cooling channel 5 can be controlled, and it can be adjusted according to the heat dissipation requirements. When the charging module does not need heat dissipation, the airbag 19 returns to a flat state and no longer pushes the fixing rod 21. In this way, the resilience of the spring can drive the connection box 22 to rise and block the liquid cooling channel 5 again.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Liquid cooling heat dissipation plate structure of a charging module, including a lower liquid cooling plate (1) and an upper liquid cooling plate (2), the lower liquid cooling plate (1) and the upper liquid cooling plate (2) are fixedly connected by a locking member (3), and through holes (4) are uniformly reserved inside the lower liquid cooling plate (1) and the upper liquid cooling plate (2), and a liquid cooling channel (5) is provided on the surface where the lower liquid cooling plate (1) and the upper liquid cooling plate (2) are in contact; It is characterized in that It further includes: A liquid storage box (9), arranged below the lower liquid cooling plate (1), a water pump (8) is installed inside the liquid storage box (9), and the top of the water pump (8) is connected to the lower end surface of the lower liquid cooling plate (1) through an infusion pipe (7), and heat dissipation fins (10) are fixedly arranged at equal intervals on the outer wall of the liquid storage box (9); The lower liquid cooling plate (1) and the upper liquid cooling plate (2) are connected to the liquid storage box (9) through an infusion component, and the infusion component is used to recover the heated coolant and transfer it into the liquid storage box (9).

2. The liquid cooling heat dissipation plate structure of the charging module according to claim 1, characterized in that: The liquid cooling channels (5) are distributed at equal angles between the lower liquid cooling plate (1) and the upper liquid cooling plate (2), and the liquid cooling channels (5) are curved, and one end of the liquid cooling channels (5) distributed at equal angles close to each other is provided with an infusion cavity (6), and at the same time the infusion cavity (6) is opened at the center of the lower liquid cooling plate (1), and the infusion cavity (6) is communicated with the infusion pipe (7).

3. The liquid cooling heat dissipation plate structure of the charging module according to claim 1, wherein: The infusion component includes a shunt pipe (11) fixed to the sides of the lower liquid cooling plate (1) and the upper liquid cooling plate (2), and one end of the shunt pipe (11) away from the lower liquid cooling plate (1) and the upper liquid cooling plate (2) is fixedly connected to a connecting pipe (12), and a one-way valve is arranged at the connection between the shunt pipe (11) and the connecting pipe (12).

4. The liquid cooling heat dissipation plate structure of the charging module according to claim 3, wherein: The connecting pipe (12) is curved, and the liquid cooling channels (5) are communicated with each other through the shunt pipe (11) and the connecting pipe (12), and the connecting pipe (12) is communicated with a collecting pipe (13) through a return pipe (17), and at the same time the return pipe (17) is fixed between the liquid storage box (9) and the collecting pipe (13).

5. The liquid cooling heat dissipation plate structure of the charging module according to claim 4, wherein: The disconnection part of the collecting pipe (13) is fixedly connected by a hollow ball (14), and the hollow balls (14) are distributed at equal intervals on the collecting pipe (13), and the hollow balls (14) are made of stainless steel.

6. The liquid cooling heat dissipation plate structure of the charging module according to claim 5, wherein: A metal sheet (15) is arranged inside the hollow ball (14), and the edge of the metal sheet (15) is fixedly connected to one end of an elastic rope (16), and the other end of the elastic rope (16) is fixed to the inner wall of the hollow ball (14).

7. The liquid cooling heat dissipation plate structure of the charging module according to claim 1, characterized in that: A fixing cavity (18) is opened inside the upper liquid cooling plate (2), an airbag (19) is pasted on the inner top surface of the fixing cavity (18), and a guiding plate (20) is pasted and attached to the lower end surface of the airbag (19), and at the same time both ends of the guiding plate (20) are in sliding contact with the inner wall of the fixing cavity (18).

8. The liquid cooling heat dissipation plate structure of the charging module according to claim 1, characterized in that: A fixing rod (21) penetrates through the lower part of the upper liquid cooling plate (2), and the fixing rod (21) is slidably connected to the upper liquid cooling plate (2), and a connecting box (22) is fixed to the bottom of the fixing rod (21), and at the same time the top of the connecting box (22) is connected to the upper liquid cooling plate (2) through a spring.

9. The liquid cooling heat dissipation plate structure of the charging module according to claim 8, wherein: The edge of the connection box (22) slides in contact with the inner wall of the infusion cavity (6), the bottom of the connection box (22) is open, and fixing holes (23) are reserved at equal angles on the side of the connection box (22), and the infusion cavity (6) is connected to the liquid cooling channel (5) through the fixing holes (23).

10. A multi-directional uniform flow distribution method for the liquid cooling heat dissipation plate structure of a charging module, characterized in that: The multi-directional current distribution method comprises the following steps: Step 1: When the new energy vehicle is in the process of charging or driving for a long time, the temperature generated by its charging module is relatively high. When the high heat is transferred to the position of the airbag (19) through the upper liquid cooling plate (2), the airbag (19) can be heated and expanded, thereby pushing the fixing rod (21) and the connecting box (22) down, so that the fixing hole (23) and the liquid cooling channel (5) and the infusion cavity (6) are interconnected, so that the water pump (8) can be operated to transfer the coolant infusion pipe (7) in the liquid storage box (9) to the liquid cooling channel (5), thereby realizing cooling of the charging module; Step 2: Since the liquid cooling channels (5) are distributed at equal angles, the coolant is dispersed from the middle of the liquid cooling plate to the surrounding areas when flowing, achieving multi-directional flow distribution, which can improve the cooling effect and avoid the coolant always flowing in a single liquid cooling channel (5) after being heated, thus failing to achieve the heat dissipation effect; Step 3: The heated coolant can flow back to the liquid storage box (9) through the shunt pipe (11), the connecting pipe (12), the collecting pipe (13) and the return pipe (17) for reuse, and the coolant can be cooled while flowing in the connecting pipe (12) and the collecting pipe (13); Step 4: When the coolant flows through the collecting pipe (13), it can impact the metal sheet (15) and cause it to vibrate through the elastic rope (16). The bumps during the driving of the vehicle can further drive the metal sheet (15) to vibrate. The metal sheet (15) can move the coolant in the collecting pipe (13), thereby cooling the heated coolant.

Images