Heat dissipation device and charging system

Abstract

The utility model provides a heat dissipation device and a charging system, and the heat dissipation device comprises a housing, a phase change material, a heat conduction net, and a heat dissipation pipe. The heat dissipation pipe, the heat conduction net and the phase change material are all arranged in the shell. The two ends of the heat dissipation pipe extend to the ends of the shell. The phase-change material is arranged in the shell and surrounds the radiating pipe; the heat conduction net is arranged in the phase change material and is arranged in a grid shape; wherein the phase-change material is configured to exchange heat with a medium in the radiating tube. According to the heat dissipation device, the heat dissipation device comprises the phase change material and the heat conduction net, the phase change material and the heat conduction net are both arranged in the heat dissipation device shell, heat exchange can be conducted through the phase change material, and compared with an existing mode that heat exchange is conducted through a fan, noise generated by the heat dissipation device is reduced, and meanwhile the size of the heat dissipation device is reduced. In addition, the heat conduction net is arranged in the phase change material, the heat conduction performance of the phase change material can be improved, and the heat dissipation efficiency of the heat dissipation device is improved.

Description

Technical Field

[0001] The present application relates to the field of heat dissipation, and in particular to a heat dissipation device and a charging system. Background Art

[0002] Traditional cooling devices typically combine a fan and heat sink. Due to their operating principles and material limitations, they often require a large amount of space. Furthermore, when rotating at high speeds, traditional cooling fans generate considerable noise due to the friction between the fan blades and the air, as well as the hum of the fan motor. This noise not only causes hearing discomfort but also disrupts the user's work and living environment. Utility Model Content

[0003] In view of this, an object of the embodiments of the present application is to provide a heat dissipation device and a charging system, which can reduce the noise of the heat dissipation device and reduce the size of the heat dissipation device.

[0004] In a first aspect, an embodiment of the present application provides a heat dissipation device, comprising: a shell, a phase change material, a heat conductive mesh and a heat dissipation pipe; the heat dissipation pipe, the heat conductive mesh and the phase change material are all arranged inside the shell; both ends of the heat dissipation pipe extend to the end of the shell; the phase change material is arranged around the heat dissipation pipe inside the shell; the heat conductive mesh is arranged inside the phase change material, and the heat conductive mesh is arranged in a grid shape; wherein the phase change material is configured to exchange heat with the medium in the heat dissipation pipe.

[0005] In the above implementation, by providing a heat sink comprising a phase change material and a thermally conductive mesh, both of which are disposed within the heat sink housing, heat exchange can be achieved through the phase change material. This reduces noise generated by the heat sink and reduces the size of the heat sink compared to existing heat exchange methods using fans. Furthermore, by providing the thermally conductive mesh within the phase change material, the thermal conductivity of the phase change material is enhanced, thereby improving the heat dissipation efficiency of the heat sink.

[0006] In one embodiment, the phase change temperature of the phase change material is comprised between 45 and 50°C.

[0007] In the above implementation process, by setting the phase change temperature to 45 to 50°C, when the temperature of the object may exceed the temperature that ensures normal operation, a large amount of heat can be absorbed through phase change in time to quickly reduce the medium temperature and improve the heat dissipation capacity of the heat dissipation device.

[0008] In one embodiment, the material of the heat-conducting mesh and the material of the heat-dissipating pipe include heat-conducting metal materials.

[0009] In the above implementation process, by setting the material of the heat-conducting mesh to a heat-conducting metal material, the heat conductivity of the heat-conducting mesh can be improved, thereby improving the heat conductivity of the phase change material. By setting the material of the heat-conducting pipe to a heat-conducting metal material, the heat transfer capacity of the heat-conducting pipe can be improved, thereby improving the heat transfer efficiency.

[0010] In one embodiment, the heat-conducting wires of the heat-conducting network are cylindrical; and the spacing between adjacent heat-conducting wires is greater than the diameter of the heat-conducting wires.

[0011] In the above implementation process, by setting the spacing between adjacent heat-conducting mesh lines to be larger than the diameter of the heat-conducting mesh, a certain gap can be left between adjacent heat-conducting mesh lines to improve the heat-conducting efficiency of the heat-conducting mesh.

[0012] In one embodiment, the heat dissipation pipe is coiled inside the housing in a snake shape.

[0013] In the above implementation process, by arranging the heat dissipation pipe to be coiled in a serpentine shape inside the shell, the heat dissipation pipe can be repeatedly arranged in one direction, reducing the volume occupied by the heat dissipation pipe and thus reducing the overall volume of the heat dissipation device.

[0014] In one embodiment, the interior of the housing except the heat dissipation pipe and the heat conduction network is filled with the phase change material.

[0015] In the above implementation process, by setting the phase change material to fill the interior of the shell, the amount of phase change material inside the shell can be increased as much as possible, thereby increasing the area for heat exchange in the heat sink and improving the heat dissipation capacity of the heat sink.

[0016] In a second aspect, an embodiment of the present application further provides a charging system, comprising: a charging terminal, a power unit, and the heat dissipation device according to the above-mentioned first aspect, or any possible embodiment of the first aspect; wherein the charging terminal comprises: a charging device; the charging device, the heat dissipation device, and the power unit are connected in sequence through a pipeline.

[0017] In the above implementation process, by setting up a charging device, a heat dissipation device and a power device connected in sequence through pipelines, the heat dissipation device can be used to dissipate heat for the charging device, and the cooled medium can be transmitted to the charging device, thereby achieving continuous heat dissipation for the charging device, reducing the temperature of the charging device, improving the safety of the charging device, and extending the service life of the charging device.

[0018] In one embodiment, the heat dissipation device is disposed inside the charging terminal.

[0019] In the above implementation process, by arranging the heat dissipation device inside the charging terminal, the occupied area of ​​the charging system is only the occupied area of ​​the charging terminal, which can greatly reduce the occupied area of ​​the charging system.

[0020] In one embodiment, it further includes: a storage device; the storage device is arranged between the heat dissipation device and the charging device; the storage device is connected to the heat dissipation device and the charging device through a pipeline; wherein the storage device is configured to store the medium after the heat is dissipated by the heat dissipation device.

[0021] In the above implementation process, by providing a storage device, the storage device can be used to store the medium for heat exchange. On the one hand, the temperature of the medium can be further reduced, thereby improving the heat dissipation effect. On the other hand, the amount of medium in the pipeline can be maintained to provide a continuous medium with a high temperature for heat exchange, thereby improving the stability of heat dissipation.

[0022] In one embodiment, the device further includes: a filter; the filter is disposed between the storage device and the charging device; the storage device is connected to the charging device via a pipeline; wherein the filter is configured to filter the medium entering the charging device.

[0023] In the above implementation process, by setting up a filter, impurities in the medium can be filtered out, improving the cleanliness of impurities in the pipeline and preventing pipeline blockage. In addition, when the pure medium is used for heat exchange, the heat exchange efficiency is higher and the exchange effect is better, which can further improve the heat dissipation effect and efficiency.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following embodiments are given in conjunction with the accompanying drawings for detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of a heat dissipation device provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of a charging system provided in an embodiment of the present application.

[0028] Description of the drawings: 100 - heat dissipation device, 110 - housing, 120 - phase change material, 130 - heat dissipation pipe, 140 - heat conduction network, 200 - charging terminal, 300 - power device, 400 - storage device, 500 - filter. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0032] In the description of this application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the application products are usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be interpreted as a limitation of this application.

[0033] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0034] Currently, new energy vehicle charging stations primarily include AC slow chargers and DC fast chargers. Conventional AC slow chargers take 5-10 hours to charge, while DC fast chargers take 1-2 hours. To alleviate range anxiety and charging wait times for pure electric vehicles, a growing number of OEMs are deploying high-power charging stations, reducing charging times to 10-30 minutes. This ultra-fast charging improves product competitiveness and increases customer satisfaction.

[0035] However, the charging gun cable in high-power charging piles generates a lot of heat during high-power charging. Currently, high-power charging gun cables mainly use liquid cooling solutions to cool the gun cable. During the charging process, the liquid cooling system provides a stable flow of cooling water at the appropriate temperature to the gun cable, ensuring that the gun cable remains in the appropriate temperature range.

[0036] In the existing solution, the heat generated by the charging gun cable exchanges heat with the coolant in the gun cable and is then transferred to the radiator. A fan then cools the high-temperature coolant in the radiator. The coolant is then pumped back into the gun cable to cool it, forming a cooling cycle. However, the presence of the fan in this circuit creates a noise source, which degrades the charging experience.

[0037] In light of this, the present application proposes a heat sink comprising a phase change material and a thermally conductive mesh, both of which are disposed within the heat sink housing. Heat exchange is achieved through the phase change material. Compared to existing heat exchange methods using fans, this reduces noise generated by the heat sink and reduces its size. Furthermore, by incorporating the thermally conductive mesh within the phase change material, the thermal conductivity of the phase change material is enhanced, thereby improving the heat dissipation efficiency of the heat sink.

[0038] like Figure 1 , which is a schematic diagram of a heat dissipation device 100 provided in an embodiment of the present application, including: a housing 110 , a phase change material 120 , a heat conducting net 140 and a heat dissipation pipe 130 .

[0039] Among them, the heat dissipation pipe 130, the heat conductive mesh 140 and the phase change material 120 are all arranged inside the shell 110; both ends of the heat dissipation pipe 130 extend to the end of the shell 110; the phase change material 120 is arranged around the heat dissipation pipe 130 inside the shell 110; the heat conductive mesh 140 is arranged inside the phase change material 120, and the heat conductive mesh 140 is arranged in a grid shape.

[0040] The shell 110 here refers to the outer shell of the heat dissipation device 100. The shape of the shell 110 can be a rectangular parallelepiped, a cylinder, a cone, etc. The material of the shell 110 can be metal, plastic, etc., for example, aluminum, copper, aluminum alloy, polyethylene, polypropylene, polyamide, etc. The shape and material of the shell can be selected according to actual conditions.

[0041] The phase change material 120 is a substance that changes state while maintaining constant temperature and can generate latent heat. The process of changing physical properties is called a phase change. During this phase change, the phase change material 120 absorbs or releases a significant amount of latent heat. The phase change material 120 is configured to exchange heat with the medium within the heat pipe 130.

[0042] Optionally, the phase change material 120 can be an inorganic phase change material 120 (such as crystalline hydrated salts, molten salts), an organic phase change material 120 (such as paraffins, fatty acids), an organic-inorganic composite phase change material 120, etc. The specific material of the phase change material 120 can be selected according to actual conditions.

[0043] The thermal mesh 140 is a special structure or material network used to improve the thermal conductivity of a material. It is a mesh structure made of a material with excellent thermal conductivity (such as metal, alloy, graphite, carbon black, etc.). This structure increases the thermal conductivity channels within the material, thereby improving the overall thermal conductivity. When heat is transferred through the material, the thermal mesh 140 guides the heat to spread rapidly along the mesh structure, achieving uniform heat distribution and rapid heat transfer.

[0044] The heat pipe 130 is a high-efficiency heat transfer element for transferring heat. The heat pipe 130 is configured to connect the surface of an object generating heat with the heat dissipation device 100 to achieve heat transfer and heat dissipation.

[0045] In one embodiment, one end of the heat pipe 130 is connected to an object that generates heat, and the other end is connected to the medium storage device 400 .

[0046] It can be understood that the heat generated by the heat-generating object exchanges heat with the medium in the heat pipe 130. The heat pipe 130 transfers the exchanged heat to the phase change material 120, and heat is exchanged with the phase change material 120. After the heat exchange with the phase change material 120, the temperature of the medium in the heat pipe 130 decreases and is transferred to the medium storage container through the heat pipe 130 for subsequent use.

[0047] Since the phase change material 120 is provided with the heat conducting mesh 140 , the heat in the heat pipe 130 can be quickly transferred to the phase change material 120 through the heat conducting mesh 140 , thereby improving the thermal conductivity of the phase change material 120 .

[0048] The heat-conducting mesh 140 is arranged in a grid pattern along the length, width, height and other directions of the phase change material 120 .

[0049] In the above implementation, heat sink 100 includes phase change material 120 and thermally conductive mesh 140, and both phase change material 120 and thermally conductive mesh 140 are disposed within the housing of heat sink 100. Heat exchange can be achieved through phase change material 120. Compared to existing heat exchange methods using fans, this reduces noise generated by heat sink 100 and reduces its size. Furthermore, by providing thermally conductive mesh 140 within phase change material 120, the thermal conductivity of phase change material 120 is enhanced, thereby improving the heat dissipation efficiency of heat sink 100.

[0050] In one possible implementation, the phase change temperature of the phase change material 120 is between 45° C. and 50° C.

[0051] The phase transition temperature here refers to the specific temperature condition required for the phase change material 120 to change from one physical state to another physical state. This physical state transition usually involves a change between solid and liquid, or a change between solid and solid (such as crystalline and amorphous).

[0052] When the phase change material 120 is heated to its phase transition temperature, it begins to transform from a solid state to a liquid state, absorbing a large amount of heat in the process, which helps to lower the temperature of the surrounding environment. Conversely, when the phase change material 120 cools below the phase transition temperature, it solidifies from a liquid state to a solid state and releases the previously absorbed heat, thereby helping to maintain a stable temperature of the surrounding environment.

[0053] Understandably, when the phase change material 120 and the heat pipe 130 exchange heat, if the medium in the heat pipe 130 has a high heat content, the temperature of the phase change material 120 rises. When the temperature of the phase change material 120 reaches 45-50°C, the phase change material 120 begins to change phase, gradually melting from a solid phase to a liquid phase. During this phase, it absorbs a large amount of heat, thereby lowering the temperature of the medium in the heat pipe 130. The cooled medium then returns to the medium storage device 400.

[0054] In one embodiment, when the temperature of the heat-generating object is lower than the phase transition temperature of the phase change material 120, the phase change material 120 is solid, and the heat generated by the object is absorbed by the heat capacity of the medium and the environment. When the temperature of the heat-generating object exceeds the phase transition temperature of the phase change material 120, the phase change material 120 begins to change phase, gradually melting from a solid phase to a liquid phase. During this process, it absorbs a large amount of heat, causing the coolant in the heat pipe 130 to decrease in temperature. The cooled coolant then returns to the medium storage device 400.

[0055] The amount of cooling that the heat dissipation device 100 transmits to the object generating heat is determined by the phase change latent heat and mass of the phase change material 120 .

[0056] Specifically, the following takes the charging gun line as an example to illustrate the relationship between the cooling capacity and the mass of the phase change material 120:

[0057] If the charging gun cable generates heat: Q 生热 =nI 2 Rt. Among them, Q 生热 is the total heat generated in a single charge, I is the charging current, R is the total resistance of the charging gun line, t is the single charging time, and n is the number of charges per day.

[0058] If the charging gun cable dissipates heat: Q枪线散热 =Q 液冷对流散热 +Q 空气对流散热 +Q 热传导散热 +Q 辐射散热 Among them, Q 液冷对流散热 Accounting for more than 90% of the total heat dissipation of the charging gun line, Q 空气对流散热 , Q 热传导散热 , Q 辐射散热 These three parts account for a very small proportion and can be ignored in the calculation.

[0059] If the charging gun wire temperature rises and absorbs heat: Q 吸收1 =c 导体 m 导体 ΔT 导体 Among them, Q 吸收1 is the heat absorbed by the heat capacity of the charging gun line, c 导体 is the specific heat capacity of the charging gun wire conductor, m 导体 is the conductor mass of the charging gun line, ΔT 导体 It is the temperature rise of the charging gun wire conductor.

[0060] The temperature of the gun wire here rises during the charging process and drops during the non-charging period, showing a periodic fluctuation trend. Since the charging interval is inconsistent, each charging ΔT 导体 The temperature rise and heat absorbed by the charging gun wire each time are not exactly the same. In this technical solution, the heat absorbed by the charging gun wire due to temperature rise every day is: Q 吸收2 =1 / 2nc 导体 m 导体 ΔT 导体max . Among them, ΔT 导体max It is the difference between the maximum allowable temperature of the gun line and the ambient temperature.

[0061] If the cooling circuit coolant temperature rises and absorbs heat: Q 吸收3 =c 冷却液 m 冷却液 ΔT 冷却液 Among them, Q 吸收3 The heat absorbed by the cooling circuit coolant temperature rise, c 冷却液 is the specific heat capacity of the coolant in the cooling circuit, m 冷却液 is the mass of coolant in the cooling circuit, ΔT 冷却液 is the temperature rise of the coolant in the cooling circuit.

[0062] The temperature of the coolant in the cooling circuit rises during the charging process and drops during the non-charging period, showing a periodic fluctuation trend. 冷却液 The heat absorbed by the charging gun wire temperature rise each time is different. In this technical solution, the heat absorbed by the coolant due to temperature rise every day is: Q 总吸收1 =1 / 2nc冷却液 m 冷却液 ΔT 冷却液max . Among them, ΔT 冷却液max It is the difference between the maximum coolant temperature and the ambient temperature.

[0063] The amount of heat absorbed by the phase change material 120 due to temperature rise: Q 吸收4 =c 相变材料 m 相变材料 ΔT 相变材料 Among them, Q 吸收4 The phase change material absorbs heat when the temperature rises by 120°. 相变材料 is the specific heat capacity of the phase change material 120, m 相变材料 is the mass of the phase change material 120, ΔT 相变材料 is the temperature rise of the phase change material 120 .

[0064] The temperature of the phase change material 120 rises during the charging process and falls during the non-charging period, showing a periodic fluctuation trend. Since the charging interval is inconsistent, each charging ΔT 相变材料 The heat absorbed by the charging gun wire temperature rise each time is different. In this technical solution, the heat absorbed by the phase change material 120 due to temperature rise is: Q 总吸收2 =1 / 2nc 相变材料 m 相变材料 ΔT 相变材料max . Among them, ΔT 相变材料max is the difference between the maximum temperature of the phase change material 120 and the ambient temperature.

[0065] The amount of heat absorbed by the phase change material 120 due to phase change: Q 吸收5 =L 相变材料 m 相变材料 Among them, Q 吸收5 The phase change material absorbs heat at a temperature rise of 120°. 相变材料 is the latent heat of the phase change material 120, m 相变材料 is the mass of the phase change material 120. In this technical solution, the amount of heat absorbed by the phase change material 120 during the phase change is: Q 总吸收5 =2L 相变材料 m 相变材料 .

[0066] The thermal management system is in dynamic balance, Q 生热 =Q 总吸收， Q 生热 =Q 吸收2 +Q 吸收3 +Q 吸收4 +Q 吸收5 , that is, nI 2 Rt=1 / 2nc 导体 m 导体 ΔT 导体max +1 / 2nc冷却液 m 冷却液 ΔT 冷却液 +1 / 2nc 相变材料 m 相变材料 ΔT 相变材料max +2L 相变材料 m 相变材料 .

[0067] The mass m of the phase change material 120 can be calculated as 相变材料 =n(2I 2 Rt-c 导体 m 导体 ΔT 导体max -c 冷却液 m 冷却液 ΔT 冷却液 ) / (nc 相变材料 ΔT 相变材料max +4L 相变材料 ). Assume ρ 相变材料 is the density of phase change material 120, ΔT 冷却液 =ΔT 导体max -20, ΔT 相变材料 =ΔT 导体max -30, the allowable temperature of the gun line is T 枪线许用温度 , the ambient temperature is T 环境 .

[0068] Further, the calculation formula of the volume V of the phase change material 120 can be obtained:

[0069] V=n(2I 2 Rt-c 导体 m 导体 (T 枪线许用温度 -T 环境 )-c 冷却液 m 冷却液 (T 枪线许用温度 -T 环境 -20))

[0070] / ((nc 相变材料 (T 枪线许用温度 -T 环境 -30)+4L 相变材料 )ρ 相变材料 ).

[0071] The above-mentioned relationship between the cooling capacity and the phase change material 120 and the mass is only inferred by way of example based on known thermodynamic laws. Those skilled in the art can adjust the corresponding relationship between the cooling capacity and the phase change material 120 and the mass in a targeted manner when facing different heat dissipation objects.

[0072] In the above implementation process, by setting the phase change temperature to 45 to 50°C, when the temperature of the object may exceed the temperature ensuring normal operation, a large amount of heat can be absorbed through phase change in time to quickly reduce the medium temperature and improve the heat dissipation capacity of the heat dissipation device 100.

[0073] In a possible implementation, the material of the heat-conducting mesh 140 and the material of the heat-dissipating pipe 130 include a heat-conducting metal material.

[0074] The thermal conductive metal material here refers to metals and their alloys with high thermal conductivity, which can effectively transfer heat.

[0075] Optionally, the heat-conducting metal material may be silver, copper, aluminum, etc. The heat-conducting metal material may be selected according to actual conditions.

[0076] In one embodiment, the heat dissipation pipe 130 is an aluminum pipe or a copper pipe.

[0077] The heat conducting mesh 140 is a copper mesh.

[0078] In the above implementation, by setting the material of the heat-conducting mesh 140 to be a heat-conducting metal material, the thermal conductivity of the heat-conducting mesh 140 can be improved, thereby improving the thermal conductivity of the phase change material 120. By setting the material of the heat-conducting pipe 130 to be a heat-conducting metal material, the heat transfer capacity of the heat-conducting pipe 130 can be improved, thereby improving the heat transfer efficiency.

[0079] In a possible implementation, the heat-conducting mesh 140 wires of the heat-conducting mesh 140 are cylindrical; and the spacing between adjacent heat-conducting mesh 140 wires is greater than the diameter of the heat-conducting mesh 140 wires.

[0080] Optionally, the diameter of the heat-conducting mesh 140 wire can be 1mm, 2mm, 5mm, 10mm, etc., and the spacing between adjacent heat-conducting mesh 140 wires can be set to 5mm, 10mm, 13mm, 15mm, etc. The diameter of the heat-conducting mesh 140 wire and the spacing between adjacent heat-conducting mesh 140 wires can be set according to actual conditions.

[0081] In one embodiment, the diameter of the heat conducting mesh 140 wire is 1 mm, and the spacing between adjacent heat conducting mesh 140 wires is 5 mm.

[0082] In the above implementation process, by setting the spacing between adjacent heat-conducting mesh 140 lines to be larger than the diameter of the heat-conducting mesh 140 , a certain gap can be left between adjacent heat-conducting mesh 140 lines to improve the heat conduction efficiency of the heat-conducting mesh 140 .

[0083] In a possible implementation, the heat dissipation pipe 130 is coiled inside the housing 110 in a snake shape.

[0084] Here, the serpentine shape refers to a curved, winding shape. That is, it is repeatedly arranged in one direction. For example, Figure 1 As shown, Figure 1 The heat pipes 130 shown are arranged repeatedly along the length of the housing. In one embodiment, the heat pipes 130 can also be arranged in a spiral arrangement around the center of the housing. The specific arrangement of the heat pipes 130 can be adjusted according to actual conditions.

[0085] In the above implementation process, by setting the heat dissipation pipe 130 to be coiled in a serpentine shape inside the shell 110, the heat dissipation pipe 130 can be repeatedly set in one direction, reducing the occupied volume of the heat dissipation pipe 130 and thereby reducing the overall volume of the heat dissipation device 100.

[0086] In a possible implementation, the interior of the housing 110 except for the heat pipe 130 and the heat conducting mesh 140 is filled with the phase change material 120 .

[0087] In the above implementation process, by setting the phase change material 120 to fill the interior of the shell 110, the amount of phase change material 120 inside the shell 110 can be increased as much as possible, thereby increasing the area for heat exchange in the heat dissipation device 100 and improving the heat dissipation capacity of the heat dissipation device 100.

[0088] like Figure 2 , which is a schematic diagram of a charging system provided in an embodiment of the present application, including: a charging terminal 200, a power device 300 and the heat dissipation device 100 in the above embodiment.

[0089] The charging terminal 200 includes a charging device, such as a charging pile, a charger, a charging gun, etc. The charging device can be selected according to actual conditions.

[0090] The charging device here may generate a large amount of heat when performing high-power charging, which in turn affects the safety and service life of the charging device.

[0091] The heat dissipation device 100 is configured to dissipate heat generated by the charging device, thereby reducing the temperature of the charging device in a timely manner.

[0092] The charging device, the heat dissipation device 100 and the power device 300 are connected in sequence through pipelines.

[0093] The power device 300 here is configured to provide power to the medium inside the pipeline, so that the medium moves under the power provided by the power device 300.

[0094] The medium in the pipeline is configured to exchange heat with the charging device and transfer the heat of the charging device to the heat dissipation device 100. After the medium in the pipeline exchanges heat with the heat dissipation device 100, the temperature of the medium in the pipeline will change, thereby reducing the temperature of the medium, and the cooled medium is then transferred to the charging device, thereby continuously cooling the charging device.

[0095] In the above implementation process, by setting up the charging device, the heat dissipation device 100 and the power device 300 to be connected in sequence through pipelines, the heat dissipation device 100 can be used to dissipate heat for the charging device, and the cooled medium can be transferred to the charging device, thereby achieving continuous heat dissipation for the charging device, reducing the temperature of the charging device, improving the safety of the charging device, and extending the service life of the charging device.

[0096] In a possible implementation, the heat dissipation device 100 is disposed inside the charging terminal 200 .

[0097] The charging terminal 200 here refers to a charging device client for charging, for example, a charging pile, a charging gun, etc.

[0098] It is understandable that since the heat dissipation components, such as the phase change material 120, heat pipe 130, and heat conductive mesh 140, are all disposed within the housing of the heat dissipation device 100, the overall volume of the heat dissipation device 100 is equal to the volume of the housing. Furthermore, the phase change material 120, heat pipe 130, and heat conductive mesh 140 are all relatively small and variable in shape, making them easily aggregated within the housing 110, further reducing the volume of the housing. The overall heat dissipation device 100 is relatively small, allowing it to be disposed within the charging terminal 200, reducing the footprint of the entire charging system.

[0099] In the above implementation process, by arranging the heat dissipation device 100 inside the charging terminal 200, the occupied area of ​​the charging system is only the occupied area of ​​the charging terminal 200, which can greatly reduce the occupied area of ​​the charging system.

[0100] In a possible implementation, the charging system further includes: a storage device 400 .

[0101] The storage device 400 is provided between the heat dissipation device 100 and the charging device; the storage device 400 is connected to the heat dissipation device 100 and the charging device through a pipeline.

[0102] The storage device 400 is a container for storing a medium, for example, a storage tank, a barrel, a kettle, etc. The storage device 400 can be selected according to actual conditions.

[0103] The storage device 400 is configured to store the medium after the heat is dissipated by the heat dissipation device 100 .

[0104] As can be understood, the heat generated by the charging device exchanges heat with the medium in the pipeline, which then transfers the heat to the heat sink 100. After the heat sink 100 exchanges heat with the medium in the pipeline, the temperature of the medium in the pipeline decreases. The cooled medium is then transferred through the pipeline to the storage device 400, where it is stored and further cooled. The storage device 400 is also connected to the charging device. The medium, further cooled by the storage device 400, is then transferred through the pipeline to the charging device. The heat generated by the charging device continues to exchange heat with the medium in the pipeline. This cycle continues, achieving continuous cooling of the charging device.

[0105] In the above implementation process, the storage device 400 is provided to store the medium for heat exchange. On the one hand, the temperature of the medium can be further reduced, thereby improving the heat dissipation effect. On the other hand, the amount of medium in the pipeline can be maintained to provide a continuous medium with a high temperature for heat exchange, thereby improving the heat dissipation stability.

[0106] In a possible implementation, the charging system further includes: a filter 500 .

[0107] The filter 500 is provided between the storage device 400 and the charging device; the storage device 400 is connected to the charging device via a pipeline.

[0108] The filter 500 herein is a device for filtering impurities in a medium, and the filter 500 is configured to filter the medium entering the charging device.

[0109] Optionally, the filter 500 may be a cartridge filter 500, a membrane filter 500, an active ceramic filter 500, a carbon filter, etc. The filter 500 may be selected according to actual needs.

[0110] It is understandable that some impurities may be mixed into the medium during the transmission process. In order to prevent the impurities in the medium from clogging the pipeline, a filter 500 is set in the charging system. The filter 500 can be used to filter the impurities in the medium, thereby filtering out the impurities and improving the cleanliness of the medium.

[0111] In the above implementation process, by providing the filter 500, impurities in the medium can be filtered out, thereby improving the cleanliness of the impurities in the pipeline and preventing pipeline blockage. In addition, when the pure medium is used for heat exchange, the heat exchange efficiency is higher and the exchange effect is better, which can further improve the heat dissipation effect and efficiency.

[0112] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0113] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A heat dissipation device, characterized in that: include: Shell, phase change material, heat conduction network and heat pipe; The heat dissipation pipe, the heat conduction network and the phase change material are all arranged inside the housing; Both ends of the heat dissipation pipe extend to the end of the shell; The phase change material is arranged inside the housing around the heat dissipation pipe; The heat-conducting network is arranged inside the phase change material, and the heat-conducting network is arranged in a grid shape; Wherein, the phase change material is configured to exchange heat with the medium in the heat dissipation pipe.

2. The heat dissipation device according to claim 1, characterized in that: The phase change temperature of the phase change material is comprised between 45 and 50°C.

3. The heat dissipation device according to claim 1, characterized in that: The material of the heat-conducting net and the material of the heat-dissipating pipe include heat-conducting metal materials.

4. The heat dissipation device according to claim 1, wherein: The heat-conducting wires of the heat-conducting network are cylindrical; The spacing between adjacent heat-conducting mesh wires is greater than the diameter of the heat-conducting mesh wires.

5. The heat dissipation device according to claim 1, characterized in that: The heat dissipation pipe is coiled inside the housing in a snake shape.

6. The heat dissipation device according to claim 1, characterized in that: The interior of the housing except the heat dissipation pipe and the heat conduction network is filled with the phase change material.

7. A charging system, characterized in that: include: A charging terminal, a power device, and a heat dissipation device according to any one of claims 1 to 6; wherein the charging terminal comprises: a charging device; The charging device, the heat dissipation device and the power device are connected in sequence through pipelines.

8. The charging system according to claim 7, characterized in that: The heat dissipation device is arranged inside the charging terminal.

9. The charging system according to claim 7, wherein: Also included: a storage device; The storage device is arranged between the heat dissipation device and the charging device; the storage device is connected to the heat dissipation device and the charging device through a pipeline; Wherein, the storage device is configured to store the medium after the heat is dissipated by the heat dissipation device.

10. The charging system according to claim 9, characterized in that: Also includes: Filters; The filter is arranged between the storage device and the charging device; The storage device is connected to the charging device via a pipeline; Wherein, the filter is configured to filter the medium entering the charging device.

Images