Heat dissipation device for a new energy vehicle charging pile

Abstract

The present invention relates to a heat dissipation device for a new energy vehicle charging pile, which includes a heat conduction pipe for delivering the heat of electronic components to the outside of the charging cabinet and a heat dissipation block for dissipating the heat on the heat conduction pipe. A part of the heat conduction pipe is arranged inside the charging pile and is in contact with the electronic components, and the other part is arranged outside the charging pile; the heat dissipation block is arranged outside the charging pile, sleeved outside the heat conduction pipe and fixedly connected. It is to solve the problem that most of the existing charging piles are installed in outdoor environments, and dust in the outdoor environment easily enters the inside of the charging pile through the ventilation holes on the outer shell of the charging pile. After the dust settles, it adheres to the surface of the electronic components, resulting in a decrease in the heat dissipation capacity of the electronic components.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and particularly relates to a heat dissipation device for a new energy vehicle charging pile. Background Art

[0002] A charging pile, also known as a new energy electric vehicle charging station or a power supply device for new energy electric vehicles, is a device that provides electrical energy for new energy electric vehicles, enabling the new energy electric vehicles to store sufficient electrical energy to support their operation.

[0003] During the charging process, the electrical equipment inside the charging pile will perform current conversion and transmission, and certain heat will be generated during this process, such as electronic components like power conversion modules. Especially for DC charging piles, due to their fast charging characteristics, the current is relatively large, so the generated heat will also increase accordingly. If the heat dissipation system of the charging pile is not perfect or it operates at a high load for a long time, it may lead to heat accumulation, thereby triggering potential safety hazards.

[0004] In the prior art, heat dissipation fans are usually installed inside or outside the charging pile. The electronic components dissipate heat into the air inside the charging pile, and the rotation of the fan generates an air flow to take away the hot air inside the charging pile and discharge it into the external environment, promoting the dissipation of heat inside the charging pile and reducing the risk of heat accumulation and fire inside the charging pile. However, most charging piles are installed in outdoor environments, and dust in the outdoor environment easily enters the inside of the charging pile through the ventilation holes on the outer shell of the charging pile. After the dust settles, it adheres to the surface of the electronic components, reducing the heat dissipation capacity of the electronic components. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a heat dissipation device for a new energy vehicle charging pile to solve the problem that in the prior art, most charging piles are installed in outdoor environments, and dust in the outdoor environment easily enters the inside of the charging pile through the ventilation holes on the outer shell of the charging pile. After the dust settles, it adheres to the surface of the electronic components, reducing the heat dissipation capacity of the electronic components.

[0006] The present invention is achieved through the following technical solutions:

[0007] A heat dissipation device for a new energy vehicle charging pile includes a heat conduction pipe for transporting the heat of the electronic components to the outside of the charging cabinet and a heat dissipation block for dissipating the heat on the heat conduction pipe. A part of the heat conduction pipe is arranged inside the charging pile and is in contact with the electronic components, and the other part is arranged outside the charging pile;

[0008] The heat dissipation block is arranged outside the charging pile and is sleeved outside the heat conduction pipe and fixedly connected.

[0009] Further, the heat dissipation block is cylindrical, and a plurality of first heat dissipation fins are provided on the outer circumferential surface thereof. The plurality of first heat dissipation fins are evenly distributed in the circumferential direction of the heat dissipation block;

[0010] The first heat dissipation fin is parallel to the axis of the heat dissipation block, and one side is fixedly connected to the outer circumferential surface of the heat dissipation block, and the other side extends away from the heat dissipation block.

[0011] Further, a rotating block is sleeved and rotatably fitted at one end of the heat dissipation block, and second heat dissipation fins corresponding to the plurality of first heat dissipation fins are fixedly connected to the outer circumferential surface of the rotating block.

[0012] Further, a sliding groove is formed on the end surface of the heat dissipation block facing the rotating block, and the sliding groove extends in the circumferential direction of the heat dissipation block;

[0013] A push bar is slidably fitted in the sliding groove, and one end of the push bar protrudes from the opening of the sliding groove and is fixedly connected to the rotating block;

[0014] A compression spring is provided on one side of the push bar. One end of the compression spring is fixedly connected to the push bar, and the other end is fixedly connected to the side wall of the sliding groove. When the compression spring is in the natural extension state, the second heat dissipation fin abuts against the corresponding first heat dissipation fin.

[0015] Further, the end surface of the rotating block facing the heat dissipation block covers the opening of the sliding groove to form a sealed chamber, and the push bar is slidably and sealingly fitted with the sliding groove;

[0016] An endothermic expansion material is provided on the side of the push bar facing away from the compression spring.

[0017] Further, both the opposite sides of the first heat dissipation fin and the corresponding second heat dissipation fin intersect with the axis of the heat dissipation block.

[0018] Further, both the first heat dissipation fin and the second heat dissipation fin are triangular prism-shaped, and the thickness of the side facing away from the heat dissipation block is smaller than the thickness of the side close to the heat dissipation block.

[0019] Further, an endothermic medium is filled in the heat conduction tube, and the endothermic medium can flow in the heat conduction tube;

[0020] A delivery pump is provided on the heat conduction tube. One end of the heat conduction tube is communicated with the input end of the delivery pump, and the other end is fixedly connected and communicated with the output end of the delivery pump.

[0021] Further, a storage tank for storing the endothermic medium is provided on one side of the delivery pump. The input end of the delivery pump is fixedly connected and communicated with the bottom end of the side wall of the storage tank, and the end of the heat conduction tube facing away from the delivery pump is fixedly connected and communicated with the bottom end of the side wall of the storage tank.

[0022] Further, a through hole communicating the inside and outside of the storage tank is provided at the top of the storage tank, and a sealing disc is slidably and sealingly fitted inside the storage tank.

[0023] The beneficial effects of the present invention are as follows:

[0024] For the heat dissipation device of a new energy vehicle charging pile, by embedding a part of the heat conduction pipe into the charging pile and contacting with electronic components, the heat generated by the electronic components is conducted to the heat conduction pipe, and the heat is transported to the outside of the charging pile through the heat conduction pipe. The heat on the heat conduction pipe is dissipated into the air outside the charging pile through the heat dissipation block, so as to achieve the purpose of dissipating heat from the charging pile. Most of the heat generated by the electronic components is directly transmitted outside the charging cabinet through the heat conduction pipe, and a small part of the heat is released into the air inside the charging cabinet, reducing the risk of fire caused by excessive temperature inside the charging cabinet. Therefore, there is no need to use a cooling fan to promote the air circulation on both sides of the charging cabinet, and then the number of ventilation holes can be reduced, and the influence of dust on the heat dissipation of electronic components can be reduced.

[0025] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0027] Figure 2 is a three-dimensional structural schematic diagram of the heat dissipation device in an embodiment of the present invention;

[0028] Figure 3 is a three-dimensional structural schematic diagram of the heat dissipation block and the rotating block in an embodiment of the present invention;

[0029] Figure 4 is a planar structural schematic diagram of the heat dissipation block and the rotating block in an embodiment of the present invention;

[0030] Figure 5 is an exploded schematic diagram of the heat dissipation block and the rotating block in an embodiment of the present invention;

[0031] Figure 6 is a three-dimensional structural schematic diagram of the heat dissipation block in an embodiment of the present invention;

[0032] Figure 7 is a three-dimensional structural schematic diagram of the rotating block in an embodiment of the present invention;

[0033] Figure 8 is a three-dimensional structural schematic diagram of the storage tank in an embodiment of the present invention;

[0034] Figure 9 For Figure 4 the sectional view taken along A-A in

[0035] In the figure: 1, heat conduction tube; 2, heat dissipation block; 21, first heat dissipation fin; 22, sliding groove; 3, rotating block; 31, second heat dissipation fin; 32, pushing bar; 33, compression spring; 34, endothermic expansion material; 4, delivery pump; 5, storage tank; 51, through hole; 52, sealing disc. Specific implementation manners

[0036] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but is merely representative of selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0038] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0039] In the above description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "one side", "the other side", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0040] In addition, terms such as "the same" do not mean that the components must be absolutely the same, but there may be slight differences. The term "vertical" only means that the positional relationship between components is relatively more vertical compared to "parallel", and does not mean that the structure must be completely vertical, but may be slightly inclined.

[0041] Please refer to Figures 1-9, the present invention provides a technical solution: a heat dissipation device for a new energy vehicle charging pile, including a heat conduction pipe 1 for transporting the heat of electronic components to the outside of the charging cabinet and a heat dissipation block 2 for dissipating the heat on the heat conduction pipe 1. A part of the heat conduction pipe 1 is arranged inside the charging pile and is in contact with the electronic components, and the other part is arranged outside the charging pile;

[0042] The heat dissipation block 2 is arranged outside the charging pile, sleeved outside the heat conduction pipe 1 and fixedly connected.

[0043] By embedding a part of the heat conduction pipe 1 into the charging pile and contacting the electronic components, the heat generated by the electronic components is conducted to the heat conduction pipe 1, and the heat is transported to the outside of the charging pile through the heat conduction pipe 1. The heat on the heat conduction pipe 1 is dissipated into the air outside the charging pile through the heat dissipation block 2 to achieve the purpose of dissipating heat from the charging pile. Most of the heat generated by the electronic components is directly transmitted to the outside of the charging cabinet through the heat conduction pipe 1, and a small part of the heat is released into the air inside the charging cabinet, reducing the risk of fire caused by excessive temperature inside the charging cabinet. Therefore, there is no need to use a cooling fan to promote the air circulation on both sides of the charging cabinet, and thus the number of ventilation holes can be reduced, and the influence of dust on the heat dissipation of electronic components can be reduced.

[0044] In this embodiment: the heat dissipation block 2 is cylindrical and a plurality of first heat dissipation fins 21 are arranged on the outer circumferential surface. The plurality of first heat dissipation fins 21 are evenly distributed around the circumferential direction of the heat dissipation block 2;

[0045] The first heat dissipation fin 21 is parallel to the axis of the heat dissipation block 2, and one side is fixedly connected to the outer circumferential surface of the heat dissipation block 2, and the other side extends away from the heat dissipation block 2.

[0046] By arranging the first heat dissipation fins 21 on the outer circumferential surface of the heat dissipation block 2, the contact area between the heat dissipation block 2 and the air is increased, the dissipation of the heat inside the heat dissipation block 2 is promoted, and the heat dissipation efficiency is improved. At the same time, a cooling fan can be installed on the outer shell of the charging pile. By the rotation of the fan blades of the cooling fan, the air flow around the heat dissipation block 2 is accelerated, so as to promote the hot air around the heat dissipation block 2 to move around, accelerate the diffusion of heat, and improve the heat dissipation efficiency of the heat dissipation block 2.

[0047] In this embodiment: a rotating block 3 is sleeved and rotatably fitted at one end of the heat dissipation block 2, and a second heat dissipation fin 31 corresponding to each of the plurality of first heat dissipation fins 21 is fixedly connected to the outer circumferential surface of the rotating block 3.

[0048] The heat conduction pipe 1, the heat dissipation block 2, the first heat dissipation fins 21, the rotating block 3 and the second heat dissipation fins 31 are all made of copper. Copper has good heat conduction performance and can effectively conduct away the heat generated by electronic components.

[0049] By providing a rotating block 3 on the heat dissipation block 2 and rotatably mating the rotating block 3 with the heat dissipation block 2, the distance between the second heat dissipation fins 31 and the first heat dissipation fins 21 can be adjusted. Moreover, when the second heat dissipation fins 31 are blown by natural wind or artificial wind, the rotating block 3 can be driven to rotate on the heat dissipation block 2, causing the second heat dissipation block 2 to collide with the first heat dissipation block 2 relatively and vibrate, promoting the dust adhering to the heat dissipation block 2 or the rotating block 3 to fall off, reducing the influence of dust on the heat dissipation of the heat dissipation block 2 and the rotating block 3. At the same time, when the second heat dissipation block 2 and the first heat dissipation block 2 move relatively, it can promote the circulation of the hot air in the gap between the two and the surrounding air, further improving the heat dissipation efficiency.

[0050] In this embodiment: a chute 22 is formed on the end face of the heat dissipation block 2 facing the rotating block 3, and the chute 22 extends in the circumferential direction of the heat dissipation block 2;

[0051] A push bar 32 is slidably fitted in the chute 22, and one end of the push bar 32 protrudes from the opening of the chute 22 and is fixedly connected to the rotating block 3;

[0052] One side of the push bar 32 is provided with a compression spring 33. One end of the compression spring 33 is fixedly connected to the push bar 32, and the other end is fixedly connected to the side wall of the chute 22. When the compression spring 33 is in a natural extended state, the second heat dissipation fins 31 abut against the corresponding first heat dissipation fins 21.

[0053] In this embodiment: the end face of the rotating block 3 facing the heat dissipation block 2 covers the opening of the chute 22 to form a sealed chamber, and the push bar 32 is slidably and hermetically fitted with the chute 22;

[0054] On the side of the push bar 32 facing away from the compression spring 33, there is provided a heat-absorbing and expanding material 34.

[0055] By forming a chute 22 on the heat dissipation block 2 and covering the opening of the chute 22 with the rotating block 3 to form a sealed chamber in the chute 22, and providing a push bar 32 on the rotating block 3, inserting the push bar 32 into the chute 22 and making it slidably and hermetically fitted, the push bar 32 is similar to the piston in a piston cylinder structure. When the heat dissipation block 2 absorbs heat and its temperature rises, the temperature in the sealed chamber also rises. The heat-absorbing and expanding material 34 absorbs heat and expands, pushing the push bar 32 to slide in the sealed chamber of the chute 22. The compression spring 33 is squeezed and contracted. At the same time, the push bar 32 drives the rotating block 3 to rotate on the heat dissipation block 2, causing the second heat dissipation fins 31 and the corresponding first heat dissipation fins 21 to move relatively, increasing the gap size between the two, promoting the flow of air, and improving the heat dissipation efficiency.

[0056] When the charging pile stops charging, the heat generated by the internal electronic components decreases, causing the temperature of the heat conduction tube 1 to drop. The temperature of the heat dissipation block 2 and the rotating block 3 continues to decrease as heat is continuously dissipated, causing the volume of the heat-absorbing and expanding material 34 to decrease due to heat loss, reducing the thrust on the push bar 32. The compression spring 33 releases energy to push the push bar 32 to slide in the reverse direction until it returns to its initial position, causing the second heat dissipation fin 31 to collide and vibrate with the first heat dissipation fin 21, promoting the shedding of dust.

[0057] Among them, the heat-absorbing and expanding material 34 can be water or alcohol. Water or alcohol is in a liquid state at room temperature and has a small volume. When water or alcohol absorbs heat, it will vaporize into a gaseous state. As the temperature on the heat dissipation block 2 continues to rise, more vaporized water or alcohol is produced, causing the pressure in the sealed chamber at the end facing away from the compression spring 33 to continuously increase, so as to push the push bar 32 to slide, gradually increasing the gap size between the first heat dissipation fin 21 and the second heat dissipation fin 31, promoting heat dissipation.

[0058] In this embodiment: both opposite sides of the first heat dissipation fin 21 and the corresponding second heat dissipation fin 31 intersect with the axis of the heat dissipation block 2.

[0059] By setting both opposite sides of the first heat dissipation fin 21 and the corresponding second heat dissipation fin 31 to intersect with the axis of the heat dissipation block 2, when the second heat dissipation fin 31 abuts against the corresponding second heat dissipation fin 31, the opposite sides are in contact with each other, so that the second heat dissipation fin 31 and the first heat dissipation fin 21 are spliced together to form a thicker heat dissipation fin, reducing the probability of the first heat dissipation fin 21 and the second heat dissipation fin 31 being damaged by collision.

[0060] That is, when the charging pile is not charging, the first heat dissipation fin 21 and the second heat dissipation fin 31 overlap, and the opposite sides of the first heat dissipation fin 21 and the second heat dissipation fin 31 are covered, reducing the probability of the first heat dissipation fin 21 and the second heat dissipation fin 31 being damaged by collision. When the charging pile is charging, the opposite sides of the first heat dissipation fin 21 and the second heat dissipation fin 31 are exposed and open, increasing the contact area with the air and promoting heat dissipation.

[0061] In this embodiment: both the first heat dissipation fin 21 and the second heat dissipation fin 31 are in the shape of a triangular prism, and the thickness on the side away from the heat dissipation block 2 is less than the thickness on the side close to the heat dissipation block 2.

[0062] Setting the first heat dissipation fin 21 and the second heat dissipation fin 31 in the shape of a triangular prism can optimize the heat conduction path. During the heat dissipation process of the first heat dissipation fin 21, heat starts from the heat dissipation block 2 and is transmitted along the gradually tapering path of the first heat dissipation fin 21 to the side edge away from the heat dissipation block 2, which helps to reduce the accumulation and retention of heat inside the first heat dissipation fin 21, thereby accelerating the heat transfer speed.

[0063] In this embodiment: the heat conduction tube 1 is filled with a heat-absorbing medium, and the heat-absorbing medium can flow inside the heat conduction tube 1;

[0064] A transfer pump 4 is provided on the heat conduction pipe 1. One end of the heat conduction pipe 1 is communicated with the input end of the transfer pump 4, and the other end is fixedly connected and communicated with the output end of the transfer pump 4.

[0065] The heat absorption medium filled in the heat conduction pipe 1 is water. Water has a high specific heat capacity and good fluidity. By filling water in the heat conduction pipe 1, after the heat conduction pipe 1 absorbs the heat generated by the electronic components, the heat can quickly enter the water. Moreover, the heat conduction pipe 1 and the transfer pump 4 are spliced to form a closed water delivery pipeline. Under the action of the transfer pump 4, the water circulates unidirectionally in the heat conduction pipe 1 to push the hot water after absorbing heat to move outside the charging pile. When it moves to the position of the heat dissipation block 2, due to the temperature difference between the heat dissipation block 2 and the hot water in the heat conduction pipe 1, the heat in the hot water is transferred into the heat dissipation block 2. The heat dissipation block 2 dissipates the heat into the air through the first heat dissipation fins 21 and the second heat dissipation fins 31 on the rotating block 3, so that the temperature of the hot water is reduced and cooled. The cooled water is again transported into the charging cabinet by the transfer pump 4 to carry out the heat transfer work again, enabling the device to continuously carry out the heat dissipation work.

[0066] In this embodiment: A storage tank 5 for storing the heat absorption medium is provided on one side of the transfer pump 4. The input end of the transfer pump 4 is fixedly connected and communicated with the bottom end of the side wall of the storage tank 5, and the end of the heat conduction pipe 1 facing away from the transfer pump 4 is fixedly connected and communicated with the bottom end of the side wall of the storage tank 5.

[0067] By providing the storage tank 5 and storing a certain amount of water in the storage tank 5, when the water that has absorbed part of the heat through the heat dissipation block 2 enters the storage tank 5, it is mixed with the water stored in the storage tank 5, and the heat is dissipated through the contact between the outer wall of the storage tank 5 and the air, reducing the water temperature again.

[0068] In this embodiment: A through hole 51 communicating the inside and outside of the storage tank 5 is opened at the top of the storage tank 5, and a sealing disc 52 is slidably and sealingly fitted in the storage tank 5.

[0069] By opening the through hole 51 at the top of the storage tank 5 and covering the through hole 51 with the sealing disc 52, the inside of the heat conduction pipe 1 is kept sealed. Since the sealing disc 52 is slidably fitted with the storage tank 5, the overall internal volume of the water delivery pipeline formed by the heat conduction pipe 1, the transfer pump 4, and the storage tank 5 can be changed, so as to balance the pressure on both sides of the water delivery pipeline and reduce the risk of bursting due to excessive pressure inside the water delivery pipeline.

[0070] Among them, the specific model of the transfer pump 4 is CHUANGSHENG PUMP INDUSTRY TDM - 200ERU - DC48.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A heat dissipation device for a new energy vehicle charging pile, characterized in that: It includes a heat conduction pipe (1) for transporting the heat of electronic components to the outside of the charging cabinet and a heat dissipation block (2) for dissipating the heat on the heat conduction pipe (1). A part of the heat conduction pipe (1) is arranged inside the charging pile and is in contact with the electronic components, and the other part is arranged outside the charging pile; The heat dissipation block (2) is arranged outside the charging pile, sleeved outside the heat conduction pipe (1) and fixedly connected; The heat dissipation block (2) is cylindrical and is provided with a plurality of first heat dissipation fins (21) on the outer circumferential surface. The plurality of first heat dissipation fins (21) are evenly distributed around the circumferential direction of the heat dissipation block (2); The first heat dissipation fin (21) is parallel to the axis of the heat dissipation block (2), and one side is fixedly connected to the outer circumferential surface of the heat dissipation block (2), and the other side extends away from the heat dissipation block (2); A rotating block (3) is sleeved and rotatably fitted at one end of the heat dissipation block (2). Second heat dissipation fins (31) corresponding to the plurality of first heat dissipation fins (21) are fixedly connected to the outer circumferential surface of the rotating block (3); A chute (22) is formed on the end surface of the heat dissipation block (2) facing the rotating block (3), and the chute (22) extends in the circumferential direction of the heat dissipation block (2); A push bar (32) is slidably fitted in the chute (22), and one end of the push bar (32) protrudes from the opening of the chute (22) and is fixedly connected to the rotating block (3); A compression spring (33) is arranged on one side of the push bar (32). One end of the compression spring (33) is fixedly connected to the push bar (32), and the other end is fixedly connected to the side wall of the chute (22). When the compression spring (33) is in the natural extension state, the second heat dissipation fin (31) abuts against the corresponding first heat dissipation fin (21).

2. The heat dissipation device of the new energy vehicle charging pile according to claim 1, characterized in that: The end surface of the rotating block (3) facing the heat dissipation block (2) covers the opening of the chute (22) to form a sealed chamber, and the push bar (32) is slidably and sealingly fitted with the chute (22); An endothermic expansion material (34) is arranged on the side of the push bar (32) facing away from the compression spring (33).

3. The heat dissipation device of the new energy vehicle charging pile according to claim 1, wherein: The opposite sides of the corresponding first heat dissipation fin (21) and the second heat dissipation fin (31) intersect with the axis of the heat dissipation block (2).

4. The heat dissipation device of the new energy vehicle charging pile according to claim 1, wherein: Both the first heat dissipation fin (21) and the second heat dissipation fin (31) are triangular prisms, and the thickness on the side away from the heat dissipation block (2) is less than the thickness on the side close to the heat dissipation block (2).

5. The heat dissipation device of the new energy vehicle charging pile according to claim 1, characterized in that: An endothermic medium is filled in the heat conduction pipe (1), and the endothermic medium can flow in the heat conduction pipe (1); A delivery pump (4) is arranged on the heat conduction pipe (1). One end of the heat conduction pipe (1) is communicated with the input end of the delivery pump (4), and the other end is fixedly connected and communicated with the output end of the delivery pump (4).

6. The heat dissipation device of the new energy vehicle charging pile according to claim 5, characterized in that: A storage tank (5) for storing the endothermic medium is arranged on one side of the delivery pump (4). The input end of the delivery pump (4) is fixedly connected and communicated with the bottom end of the side wall of the storage tank (5), and the end of the heat conduction pipe (1) facing away from the delivery pump (4) is fixedly connected and communicated with the bottom end of the side wall of the storage tank (5).

7. The heat dissipation device of the new energy vehicle charging pile according to claim 6, characterized in that: A through hole (51) communicating the inside and outside of the storage tank (5) is formed at the top of the storage tank (5), and a sealing disc (52) is slidably and sealingly fitted in the storage tank (5).

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