Cooling working medium heat dissipation device, charging pile and charging device

Abstract

The embodiment of the utility model provides a cooling working medium heat dissipation device, a charging pile and a charging device. The cooling working medium heat dissipation device comprises a fixed plate; the heat dissipation unit is arranged on the fixing plate; the side plate is arranged on one side of the heat dissipation unit; two adjacent side edges of the side plate are respectively connected with the heat dissipation unit and the fixed plate; a liquid storage tank and a control box; and at least one of the liquid storage tank and the control box is arranged on the side plate. The scheme of the embodiment of the utility model is beneficial to optimizing the component layout and improving the heat dissipation effect.

Description

Technical Field

[0001] This application relates to the field of charging technology, and in particular to a cooling working fluid heat dissipation device, a charging pile, and a charging device. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the demand for DC fast charging for electric vehicles has exploded. Increased charging power leads to increased heat dissipation in the charging gun's power cables and terminals. For example, in supercharging mode, the internal temperature of the charging gun can quickly exceed 80°C; if proper heat dissipation is not achieved, it will severely impact charging efficiency and equipment lifespan.

[0003] With the trend towards lighter and smaller charging piles, the limited internal space and densely packed electrical components pose significant challenges to traditional heat dissipation solutions. Therefore, providing a heat dissipation device that meets both good heat dissipation and miniaturization requirements is an urgent problem to be solved. Utility Model Content

[0004] This application provides a cooling working fluid heat dissipation device, a charging pile, and a charging device, which can reduce space occupation and ensure heat dissipation requirements.

[0005] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide a cooling working fluid heat dissipation device, the device comprising:

[0007] Fixing plate;

[0008] The heat dissipation unit is mounted on the fixed plate;

[0009] A side panel is located on one side of the heat dissipation unit; two adjacent sides of the side panel are respectively connected to the heat dissipation unit and the fixing plate; and

[0010] A liquid storage tank and a control box; at least one of the liquid storage tank and the control box is mounted on a side panel.

[0011] Based on this solution, by placing at least one of the liquid storage tank and control box on a side plate on one side of the heat dissipation unit, the influence of the liquid storage tank and control box on the heat dissipation effect of the heat dissipation unit can be avoided. Furthermore, the side plate arrangement provides more flexible installation space for other components, which is beneficial for optimizing component layout, simplifying pipeline connection paths, and effectively utilizing the installation gaps between components. Thus, the heat dissipation device of this application can reduce space occupation while ensuring heat dissipation requirements.

[0012] In one possible implementation, the heat dissipation unit includes:

[0013] The base plate is connected to the fixing plate;

[0014] A first top plate is disposed opposite to the base plate, and the first top plate is located on the side of the base plate away from the fixed plate;

[0015] The heat exchange tube assembly is located between the bottom plate and the first top plate;

[0016] The first top plate is provided with a first connection port and a first liquid outlet; the first connection port is connected to the inlet of the heat exchange tube assembly, and the first liquid outlet is connected to the outlet of the heat exchange tube assembly.

[0017] Based on this solution, the heat dissipation unit adopts a stacked structure in which the heat exchange tube assembly is sandwiched between the bottom plate and the top plate. The arrangement of the heat exchange tubes in the vertical direction forms a multi-stage heat exchange channel, which enhances the heat exchange efficiency between the cooling medium and the air.

[0018] In one possible implementation, the liquid storage tank includes a liquid inlet and a liquid outlet; the liquid inlet is used to communicate with a first liquid outlet.

[0019] The cooling working fluid heat dissipation device also includes:

[0020] The first connector is provided with a second connection port and a second liquid outlet.

[0021] The pump body is connected to the second liquid outlet and the liquid storage outlet via pipelines.

[0022] The control box is electrically connected to the pump body and is used to control the pump body to make the cooling medium flow sequentially through the storage tank, the storage outlet, and the second outlet.

[0023] Based on this scheme, a circulation channel for the cooling medium is constructed to achieve directional transport of the cooling medium from the storage tank to the first connecting component.

[0024] In one possible implementation, the projections of the liquid storage tank, pump body, first connector, and control box on the side plate are located in the same width region of the side plate; the width of the width region is the maximum value among the projection width of the liquid storage tank on the side plate, the projection width of the pump body on the side plate, the projection width of the first connector on the side plate, and the projection width of the control box on the side plate.

[0025] Based on this solution, the projected width of each component on the side panel is limited to no more than the size range of the largest single unit, ensuring a reasonable arrangement of each component within the limited installation space, so that the overall structure is reduced in at least one direction, thereby reducing the overall volume.

[0026] In one possible implementation, a side plate is provided on each side of the heat dissipation unit, a liquid storage tank is located on one side plate, and a control box is disposed on the other side plate.

[0027] Based on this solution, by using double side plates to fix the liquid storage tank and the control box respectively, it is possible to avoid the impact of the liquid storage tank and the control box on the heat dissipation effect of the heat dissipation unit. At the same time, by rationally arranging the positions of the liquid storage tank and the control box, the overall space occupied by the heat dissipation device is reduced.

[0028] In one possible implementation, the projection of the storage tank or control box on the side plate is not higher than the projection of the first top plate on the side plate.

[0029] Based on this solution, the height of the liquid storage tank or control box relative to the fixed plate is set with reference to the first top plate. That is, the liquid storage tank or control box does not protrude from the first top plate, so the size of the heat dissipation device does not need to be increased in the height direction.

[0030] In one possible implementation, the top surface of the storage tank is flush with the top surface of the first top plate.

[0031] Based on this solution, the storage space below the liquid storage tank is further increased. The pump body can be set below the liquid storage tank along the height direction (z-axis direction) and close to the bottom of the liquid storage tank. This not only reduces the pipeline length between the pump body and the liquid storage tank, but also reduces the airflow obstruction of the heat dissipation unit by the pump body.

[0032] In one possible implementation, the storage tank is connected to the first top plate.

[0033] Based on this solution, placing the liquid storage tank at the top of the first containment space can maximize the utilization of the top area of ​​the first containment space and provide more space advantages for the rational layout of pipelines.

[0034] In one possible implementation, the liquid storage tank includes:

[0035] Body part;

[0036] Air guide section; the air guide section is located on the side of the main body near the heat dissipation unit; the air guide section and the main body together form the inner cavity of the liquid storage tank;

[0037] The cross-section of the air guide gradually decreases along the direction from the main body to the heat dissipation unit.

[0038] Based on this solution, the incoming air is guided by the air guide section, allowing the air to flow more evenly over the heat exchange area of ​​the heat dissipation unit, avoiding the obstruction of airflow by the traditional straight-cylinder liquid storage tank and improving heat exchange efficiency.

[0039] In one possible implementation, the liquid storage tank has a first long side and a first short side along its cross-section parallel to the fixed plate, wherein the length of the first long side is greater than or equal to the length of the first short side; the liquid storage tank is connected to the side plate along the first long side.

[0040] Based on this solution, the obstruction of airflow to the heat dissipation unit by the liquid storage tank can be further reduced, ensuring heat dissipation requirements.

[0041] In one possible implementation, the control box has a second long side and a second short side along a section parallel to the fixed plate, wherein the length of the second long side is greater than or equal to the length of the second short side; the control box is connected to the side plate along the second long side.

[0042] Based on this solution, the area occupied by the control box on the side panel is reduced, thereby optimizing the design length of the side panel along the width direction and reducing the overall space occupied by the structure.

[0043] In one possible implementation, the heat dissipation unit further includes:

[0044] The fan assembly is located on the side of the heat exchange tube assembly facing away from the liquid storage tank; the side of the fan assembly is connected to the side plate.

[0045] Based on this solution, the heat dissipation efficiency of the heat exchanger tube assembly can be accelerated, ensuring that the cooling medium cools down rapidly.

[0046] In one possible implementation, the fan component includes:

[0047] Back panel; the back panel is connected to the fixed plate in a direction perpendicular to the fixed plate; at least one fan is installed on the back panel;

[0048] A second top plate connected to the back plate; the second top plate is connected to the first top plate;

[0049] The back panel and the second top panel are connected to the side panel on the same side.

[0050] Based on this solution, a stable connection structure is formed between the second top plate and the first top plate to ensure the stability of the back plate in the horizontal direction and avoid deformation, tilting or vibration of the back plate due to wind resistance during the operation of the fan assembly.

[0051] In one possible implementation, the liquid storage tank includes:

[0052] Liquid level sensor;

[0053] The control box is electrically connected to the liquid level sensor and is used to control the pump body based on the electrical signal fed back by the liquid level sensor;

[0054] And / or,

[0055] The first connector includes: a pressure sensor;

[0056] The control box is electrically connected to the pressure sensor and is used to control the pump body based on the pressure signal fed back by the pressure sensor.

[0057] And / or,

[0058] The first connector includes: a temperature sensor;

[0059] The control box is electrically connected to the temperature sensor and is used to control the heat dissipation unit based on the temperature signal fed back by the temperature sensor.

[0060] Based on this solution, the liquid level signal in the storage tank is monitored through a liquid level sensor, which facilitates remote monitoring of the liquid level information of the cooling medium by operation and maintenance personnel.

[0061] The pressure sensor monitors the pressure status of the cooling fluid circulation pipeline in real time and transmits the pressure signal to the control box. Based on pressure feedback, the control box dynamically adjusts the pump's operating parameters, establishing a pressure adaptive regulation mechanism. This closed-loop control mode can promptly compensate for pressure fluctuations caused by temperature changes or mechanical vibrations, maintaining the system pressure within the optimal operating range. This avoids the risk of pipeline leakage due to excessive pressure and prevents a decrease in heat dissipation efficiency due to insufficient pressure, ensuring the cooling system always operates in a highly efficient and stable state.

[0062] By integrating a temperature sensor inside the first connector, a real-time monitoring mechanism for the temperature of the cooling medium is established. The control box can dynamically adjust the operating parameters of the heat dissipation unit based on the temperature signal to ensure the heat dissipation effect.

[0063] Secondly, this application also provides a liquid cooling system for a charging gun, comprising:

[0064] The first aspect is the heat dissipation device for the cooling working fluid;

[0065] The charging gun body has a cooling pipe with an inlet and an outlet; the outlet is connected to the first connection port of the cooling medium heat dissipation device; and the inlet is connected to the second connection port of the cooling medium heat dissipation device.

[0066] Based on this solution, an efficient and stable liquid cooling solution for charging guns can be provided, ensuring precise temperature control during charging, extending equipment lifespan, and improving charging safety.

[0067] Thirdly, this application also provides a charging pile, including:

[0068] case;

[0069] The first aspect is a cooling working fluid heat dissipation device, which is installed inside the casing.

[0070] Based on this solution, an efficient and stable heat dissipation solution for charging piles can be provided, ensuring the safety of charging piles during long-term operation.

[0071] Fourthly, this application also provides a charging device, comprising:

[0072] The third aspect is the charging pile and the charging gun, which are electrically connected to the charging pile. The cooling working fluid heat dissipation device in the charging pile is used to dissipate heat for the charging gun. Attached Figure Description

[0073] Figure 1 A schematic diagram illustrating the formation of the first accommodating space in a cooling working fluid heat dissipation device provided in some embodiments of this application;

[0074] Figure 2 This is a schematic diagram of the structure within the first accommodating space of a cooling working fluid heat dissipation device provided in some embodiments of this application;

[0075] Figure 3 Another perspective structural schematic diagram of the first accommodating space in the cooling working fluid heat dissipation device provided in some embodiments of this application;

[0076] Figure 4 This is a schematic diagram of the structure of the heat dissipation unit in some embodiments of this application;

[0077] Figure 5 This is a schematic diagram of the structure within the first accommodating space of a cooling working fluid heat dissipation device provided in other embodiments of this application;

[0078] Figure 6 This is a schematic diagram of the structure of the heat dissipation unit in the cooling working fluid heat dissipation device provided in some embodiments of this application;

[0079] Figure 7 A schematic diagram of the air guide principle for a liquid storage tank provided in some embodiments of this application;

[0080] Figure 8 Schematic diagram of the air guide principle of the liquid storage tank provided in other embodiments of this application;

[0081] Figure 9 This is a schematic diagram of the structure of a fan assembly provided in some embodiments of this application;

[0082] Figure 10 This is a schematic diagram of the structure of the first connector provided in some embodiments of this application;

[0083] Figure 11 This is a schematic diagram of the cooling medium flow direction provided for some embodiments of this application;

[0084] Figure 12 This is a schematic diagram of the control system of the control box provided in some embodiments of this application.

[0085] Explanation of reference numerals in the attached figures:

[0086] 100 - First containment space;

[0087] 10-Fixing plate; 20-Heat dissipation unit; 30-Side plate; 40-Liquid storage tank; 50-Pump body; 60-First connecting piece; 70-Control box;

[0088] 21-Base plate; 22-First top plate; 23-Heat exchanger tube assembly; 24-Fan assembly; 41-Main body; 42-Air guide section; 61-Pressure sensor; 62-Temperature sensor;

[0089] 221-First connection port; 222-First liquid outlet; 241-Back plate; 242-Fan; 243-Second top plate; 401-Liquid storage inlet; 402-Liquid storage outlet; 403-Liquid level sensor; 601-Second connection port; 602-Second liquid outlet. Detailed Implementation

[0090] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. To facilitate a clear description of the technical solutions of the embodiments of this application, the use of terms such as "first," "second," etc., in the embodiments of this application is for illustrative purposes and to distinguish the objects being described. There is no particular order between them, nor does it indicate a specific limitation on the number of devices in the embodiments of this application, and they do not constitute any limitation on the embodiments of this application.

[0091] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0092] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0093] In the description of this application, it should be understood that the terms "upper," "lower," "horizontal," "bottom," "inner," and "outer" (if any) indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In this application, unless otherwise expressly specified and limited, "upper" or "lower" of the first feature and the second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.

[0094] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities at the point of connection do not establish a connection relationship through a transitional structure, but are connected to form a whole solely through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0095] In this application, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0096] This application provides a charging device for replenishing the electrical energy of vehicles that use electricity as their primary driving source.

[0097] In some examples, the charging device may include a charging station and a charging gun, wherein the charging gun is used to plug into the vehicle's charging port to charge the vehicle, and the charging station is used to provide power to the charging gun.

[0098] In some examples, to ensure that the charging gun does not overheat during long-term use, a cooling medium circulation pipeline can be installed inside the charging device; the charging pile is also used to dissipate heat from the cooling medium in the circulation pipeline.

[0099] This application also provides a charging pile for providing electrical energy and cooling fluid to the charging gun.

[0100] In some examples, the charging station may include a housing, and power supply components (such as a charging module, an accounting management module, connecting cables, and safety protection devices) disposed within the housing, as well as a heat dissipation device that provides heat dissipation for the cooling medium.

[0101] See Figure 1 This is a schematic diagram illustrating the formation of the first accommodating space in a cooling medium heat dissipation device provided in some embodiments of this application.

[0102] See some examples. Figure 1 The present application provides a cooling working fluid heat dissipation device, including a fixing plate 10. The fixing plate 10 is used to provide support for other components. In practical applications, the fixing plate 10 can be placed on the inner bottom surface of the housing, or it can be connected to the bottom surface of the housing by bolts or other fasteners.

[0103] In some examples, the fixing plate 10 can be made of a high-strength, corrosion-resistant metal material, such as stainless steel or aluminum alloy, to ensure its stability and durability during long-term use.

[0104] In some examples, the surface of the mounting plate 10 may be provided with holes and mounting slots to facilitate the installation and fixation of other heat dissipation devices.

[0105] In some examples, the shape of the fixing plate 10 is not limited to a regular shape (e.g., a rectangle). Depending on the spatial layout inside the housing, the shape of the fixing plate can be customized to make full use of the space and avoid interference with other components.

[0106] See Figure 1 The cooling medium heat dissipation device also includes a heat dissipation unit 20, which can be installed on the upper surface of the fixed plate 10 to provide heat dissipation for the high-temperature cooling medium so as to output a low-temperature cooling medium.

[0107] In some examples, the heat dissipation unit 20 can employ different heat dissipation methods such as air cooling, water cooling, or semiconductor cooling to achieve the above effects. The heat dissipation unit 20 is designed to optimize heat exchange efficiency while reducing the required installation space.

[0108] See Figure 1 The cooling working fluid heat dissipation device also includes a side plate 30 disposed on one side of the heat dissipation unit 20; the two adjacent sides of the side plate 30 are respectively connected to the heat dissipation unit 20 and the fixing plate 10, and along the gas flow direction of the heat dissipation unit 20, the side plate 30, the heat dissipation unit 20 and the fixing plate 10 together form a first accommodating space 100; wherein, the first accommodating space 100 can be located in the direction of gas flow towards the heat dissipation unit 20 or in the direction of gas flow out of the heat dissipation unit 20.

[0109] In this embodiment, the first accommodating space 100 formed by the side plate 30, the fixing plate 10, and the heat dissipation unit 20 is used to accommodate the remaining components in the cooling medium heat dissipation device. By rationally configuring the positions of the components inside the first accommodating space 100, the overall structure volume can be effectively reduced while maintaining heat dissipation efficiency. In addition, the side plate 30 can provide additional support and protection. By cooperating with the side plate 30, the fixing plate 10, and the heat dissipation unit 20 to support other components, the utilization rate of the first accommodating space 100 can be optimized, thereby achieving the best heat dissipation effect with the smallest possible first accommodating space 100.

[0110] In some examples, the shape of the side plate 30 is adapted to the fixed plate 10 and the heat dissipation unit 20 to ensure a tight fit between the side plate 30 and the fixed plate 10 and the heat dissipation unit 20, thereby improving the stability and durability of the overall structure.

[0111] In some embodiments, the side plate 30 may also include a number of ventilation holes to further enhance the cooling effect of the heat dissipation unit 20.

[0112] See Figure 2 This is a schematic diagram of the structure within the first accommodating space of a cooling working fluid heat dissipation device provided in some embodiments of this application; see also Figure 3 This is a schematic diagram of the structure within the first accommodating space of the cooling working fluid heat dissipation device provided in some embodiments of this application, from another perspective.

[0113] See Figure 2 and Figure 3 The cooling medium heat dissipation device also includes a liquid storage tank 40 and a control box 70, wherein at least one of the liquid storage tank 40 and the control box 70 is disposed on the side plate 30. The liquid storage tank 40 is used to store the cooled cooling medium discharged from the heat dissipation unit 20 to ensure its recycling; the control box 70 is used to control the flow of the cooling medium in the circulation pipeline of the cooling medium heat dissipation device.

[0114] In this embodiment, the first accommodating space 100 formed by the side plate 30, the fixing plate 10, and the heat dissipation unit 20 can optimize the layout of other components within the first accommodating space 100, thereby improving heat dissipation efficiency. The side plate 30, the fixing plate 10, and the heat dissipation unit 20 provide multiple installation methods for the other components. By optimizing the layout of each component, the compactness and efficiency of the cooling system are further improved, achieving efficient heat dissipation within a limited space.

[0115] By setting the side plate 30, the relatively large liquid storage tank 40 and control box 70 can be placed on the side plate, so that within the limited space (first accommodating space 100), the airflow through the heat dissipation unit 20 is not blocked by the liquid storage tank 40 or control box 70 as much as possible, thus ensuring the heat dissipation effect of the heat dissipation unit 20. Under the same heat dissipation capacity requirements for the heat dissipation unit 20, the lower limit of the volume of the heat dissipation unit 20 can be further reduced by using the cooling working fluid heat dissipation device provided in the embodiments of this application; in addition, the side plate 30 can also provide more flexible installation space for other components, which is conducive to optimizing component layout, simplifying pipeline connection paths, and effectively utilizing the installation gaps between components.

[0116] In some examples, the cooling medium heat dissipation device also includes a first connector 60; the first connector 60 is provided with a second connection port 601 and a second outlet port 602. The first connector 60 is used to support the second connection port 601. It also includes a pump body 50, wherein the pump body 50 and the second connection port 601 are both located within the first receiving space 100 and can be selectively disposed on the side plate 30. The control box 70 is used to control the pump body 50 to cause the cooling medium to flow sequentially through the storage tank 40 and the second outlet port 602; in practical applications, the heat dissipation unit 20 can be connected to the outlet of the cooling circulation pipeline inside the charging gun, and the second connection port 601 can be connected to the inlet of the cooling circulation pipeline inside the charging gun, thereby forming a closed cooling medium circulation pipeline.

[0117] In some examples, the pump body 50 provides the power for the transfer of the cooling working fluid and maintains the flow of the working fluid; the second connection port 601 is connected to the output end of the pump body 50 through a pipeline to transfer the cooling working fluid output by the pump body 50 to the cooling circulation pipeline inside the charging gun; the control box 70 is equipped with a control circuit to precisely regulate the working state of the pump body 50 to ensure that the cooling working fluid is supplied to the cooling needs of the charging gun in a timely manner.

[0118] See Figure 4 This is a schematic diagram of the structure of the heat dissipation unit in some embodiments of this application.

[0119] See some examples. Figure 4 The heat dissipation unit 20 may include:

[0120] The base plate 21 is connected to the fixing plate 10. The base plate 21 can be connected to the fixing plate 10 by means of screwing, plugging, or welding. The fixing plate 10 can also have pre-set mounting holes that match the base plate 21. By inserting the base plate 21 into the mounting holes and tightening it, a secure connection is ensured. The tightening method can be a transition fit or an interference fit.

[0121] The heat dissipation unit 20 also includes a first top plate 22 disposed opposite to the base plate 21. The first top plate 22 is located on the side of the base plate 21 away from the fixing plate 10. The first top plate 22 is used to provide support for the top and to provide the inlet and outlet of the heat dissipation unit 20. For example, a first connection port 221 and a first liquid outlet 222 can be provided on the first top plate 22. The first connection port 221 is used to connect to the cooling circulation pipeline inside the charging gun so that the high-temperature cooling medium enters the heat dissipation unit 20. The first liquid outlet 222 is used to discharge the cooled cooling medium to the storage tank 40 for storage.

[0122] In some examples, to facilitate the connection between the first connection port 221 and the cooling circulation pipeline inside the charging gun, the first connection port 221 can be located on the top surface of the first top plate 22, making it easier for operators to perform pipeline connection operations.

[0123] In some examples, in order to reduce the pipe layout within the first accommodating space 100, the first liquid outlet 222 can be located on the side of the first top plate 22, making it closer to the liquid storage tank 40, thereby shortening the pipe length between the heat dissipation unit 20 and the liquid storage tank 40 and reducing fluid resistance.

[0124] In some examples, when the liquid storage tank 40 is installed close to or near the heat dissipation unit 20, the first liquid outlet 222 can be directly connected to the liquid storage inlet of the liquid storage tank 40, further simplifying the pipeline layout.

[0125] See Figure 4 The heat dissipation unit 20 also includes a heat exchange tube assembly 23 located between the base plate 21 and the first top plate 22; the heat exchange tube assembly 23 includes an inlet and an outlet; a first connection port 221 is connected to the inlet of the heat exchange tube assembly 23, and a first liquid outlet 222 is connected to the outlet of the heat exchange tube assembly 23. Through efficient heat conduction, the heat exchange tube assembly 23 rapidly dissipates the heat of the cooling medium from the heat dissipation unit 20, thereby reducing the temperature of the cooling medium.

[0126] In some examples, heat exchanger tube assembly 23 can be replaced with finned tubes, spiral tubes or other forms of heat exchange structure. Considering the space occupation issue, a heat exchange structure with a smaller space occupation should be selected under the premise of the same heat exchange efficiency.

[0127] In some examples, the heat exchanger tube assembly 23 can be made of a material with excellent thermal conductivity, such as copper or aluminum, to improve heat dissipation efficiency.

[0128] In this embodiment, the heat dissipation unit 20 adopts a stacked structure in which the heat exchange tube group 23 is sandwiched between the bottom plate and the top plate. The arrangement of heat exchange tubes in the vertical direction forms a multi-stage heat exchange channel, which enhances the heat exchange efficiency between the cooling working fluid and the air.

[0129] In some examples, one or more of the liquid storage tank 40, pump body 50, first connector 60, and control box 70 are mounted on the side plate 30. Since the side plate 30 is close to the side of the heat dissipation unit 20, fixing the liquid storage tank 40, pump body 50, first connector 60, or control box 70 to the side plate 30 avoids obstructing the exhaust channel of the heat dissipation unit 20, ensuring that the ventilation effect of the heat dissipation unit 20 is not affected. At the same time, using the side plate 30 to fix some heat dissipation components is more conducive to optimizing the layout within the first accommodating space 100. Different heat dissipation components can be fixed using the side plate 30, fixing plate 10, and heat dissipation unit 20 respectively, making the overall structure more reasonable. This layout makes full use of the space in the height and length directions of the first accommodating space, avoiding the excessive overall space occupied by component stacking in traditional solutions.

[0130] In some examples, the connection position between the liquid storage tank 40 and the side plate 30 can be adaptively adjusted according to the pipeline routing. When the liquid storage tank 40 is installed on the side plate 30, the axis of its liquid storage inlet 401 should be kept horizontally coaxial with the axis of the first liquid outlet 222. The pump body 50 and the liquid storage tank 40 are installed vertically, which can achieve spatial layering by utilizing the different mounting surfaces of the side plate 30, and also shorten the length of the connecting pipeline between the two.

[0131] In some examples, the installation orientation of the control box 70 should take into account wiring harness management requirements. For example, a wiring trough can be pre-set on the side panel 30 so that the power and signal lines of the control box 70 can be concealed and connected to the control terminals of the heat dissipation unit 20 along the trough. In other examples, a heat dissipation gap of not less than 10mm is maintained between the outer surface of the control box 70 and the air intake surface of the heat dissipation unit 20, and auxiliary heat dissipation holes are opened at corresponding positions on the side panel 30 to form an airflow circulation path independent of the main air duct.

[0132] It is worth noting that different fixing methods can be used for each component and the side plate 30. For example, the liquid storage tank 40 is fixed with a detachable clamp, which facilitates liquid level detection and maintenance; the pump body 50 is fixed with a mounting base with shock-absorbing pads, which effectively reduces the transmission of operating vibration; and the control box 70 can adopt a sliding rail mounting structure with quick-release latches to achieve tool-free maintenance. This modular fixing method significantly improves the maintainability of the equipment while ensuring structural stability.

[0133] In some examples, two side plates 30 may be provided, with the two side plates 30 positioned opposite each other on both sides of the heat dissipation unit 20. In this case, the two side plates 30, the heat dissipation unit 20, and the fixing plate 10 together form the first accommodating space 100. The design of two side plates 30 not only enhances the stability of the overall structure, but more importantly, it allows different heat dissipation components to be fixed separately using the two side plates 30, further optimizing the spatial layout and ensuring that the cooling medium conduction path (pipeline) between each component is minimized, thereby improving the overall heat dissipation efficiency. For example, the liquid storage tank 40 and the control box 70 can be positioned opposite each other on the two side plates 30, so that the liquid storage tank 40 and the control box 70 are both close to the side of the heat dissipation unit 20, while reducing their impact on the heat dissipation effect of the heat dissipation unit 20.

[0134] In this embodiment, by rationally arranging the positions of the liquid storage tank 40 and the control box 70, the overall space occupied by the heat dissipation device can also be reduced.

[0135] In addition to optimizing the cooling fluid conduction path (pipeline) by setting the side plate 30, in this embodiment of the application, the space occupied by the entire cooling fluid heat dissipation device can be further reduced by adjusting the position of each heat dissipation component.

[0136] In some examples, the projections of the storage tank 40, pump body 50, first connector 60, and control box 70 on the side plate 30 are located in the same width region of the side plate 30; the width of the width region is the maximum value among the projection width of the storage tank 40 on the side plate 30, the projection width of the pump body 50 on the side plate 30, the projection width of the first connector 60 on the side plate 30, and the projection width of the control box 70 on the side plate 30.

[0137] See Figure 2 and Figure 3 Because the liquid storage tank 40, pump body 50, first connecting member 60, and control box 70 have certain geometric shapes, when they are fixed in the first accommodating space 100, the length of the side plate 30 along the y-axis and the length of the fixing plate 10 along the y-axis will affect the length of the entire cooling medium heat dissipation device in the y-axis direction. Therefore, by rationally designing the layout of the liquid storage tank 40, pump body 50, first connecting member 60, and control box 70 in the first accommodating space 100, the lengths of the side plate 30 and fixing plate 10 in the y-axis direction can be minimized. Figure 2 and Figure 3 As shown, when the storage tank 40 and the control box 70 are positioned opposite each other on the two side plates 30, and the pump body 50 is positioned directly below the storage tank 40, and the first connector 60 is placed between the storage tank 40 and the control box 70, the projected widths of the storage tank 40, the pump body 50, the first connector 60, and the control box 70 on the side plate 30 at least partially overlap and are located within the same width area of ​​the side plate 30 along the y-axis. At this time, the minimum width value of this width area of ​​the side plate 30 is equal to the maximum value of the projected widths of the storage tank 40, the pump body 50, the first connector 60, and the control box 70 on the side plate 30, respectively.

[0138] With the above layout, the cooling fluid heat dissipation device can have a minimum length along the y-axis while keeping its height constant, effectively utilizing the space in the height direction (z-axis direction) and length direction (x-axis direction) to reduce the overall volume.

[0139] In some examples, when the liquid storage tank 40 and the control box 70 are mounted on the side plate 30, the top surface of the liquid storage tank 40 can be close to or flush with the top surface of the side plate 30. This ensures that the top of the liquid storage tank 40 does not protrude from the first top plate 22, thus not increasing the overall height of the device. Similarly, when the control box 70 is mounted on the side plate 30, its top surface can also be close to or flush with the top surface of the side plate 30. This arrangement allows the pump body 50 to be positioned below the liquid storage tank 40 along the height direction (z-axis direction) and close to the bottom of the liquid storage tank 40, reducing the pipeline length between the pump body 50 and the liquid storage tank 40. Limiting the projected width of each component on the side plate 30 to no more than the maximum size of the single unit ensures a reasonable arrangement of components within the limited installation space, reducing the overall structure in at least one direction and lowering the overall volume.

[0140] In some examples, when the liquid storage tank 40 or the control box 70 is not mounted on the side plate 30 (e.g., mounted on the heat dissipation unit 20 or the fixing plate 10), the projection of the liquid storage tank 40 or the control box 70 on the side plate 30 can be no higher than the projection of the first top plate 22 on the side plate. The mounting height of the liquid storage tank 40 or the control box 70 relative to the fixing plate 10 is set with reference to the first top plate 22. That is, the liquid storage tank 40 or the control box 70 does not protrude from the first top plate 22, and the size of the heat dissipation device can be increased in the height direction without additional increase.

[0141] See Figure 5 This is a schematic diagram of the structure within the first accommodating space of a cooling working fluid heat dissipation device provided in other embodiments of this application;

[0142] See some examples. Figure 5 Alternatively, the liquid storage tank 40 can be connected to the heat dissipation unit 20. In this case, the liquid storage tank 40 is connected to the first top plate 22 of the heat dissipation unit 20, and the top surface of the liquid storage tank 40 can be flush with the top surface of the first top plate 22 or slightly lower than the top surface of the first top plate 22.

[0143] In this embodiment, the liquid storage tank 40 is positioned at the top of the first accommodating space 100. Simultaneously, the top surface of the control box 70, which is connected to the side plate 30, can also be flush with the top of the side plate 30. This maximizes the utilization of the top area of ​​the first accommodating space 100 and avoids the liquid storage tank 40 or control box 70 obstructing the airflow of the heat dissipation unit. Furthermore, it is easier to position other heat dissipation components (e.g., pump body 50) below the liquid storage tank 40 and / or control box 70 along the height direction, allowing them to be positioned close to the side of the heat dissipation unit 20 and reducing their obstruction of the airflow. At the same time, the increased available space below the liquid storage tank 40 and control box 70 facilitates a more rational arrangement of pipelines.

[0144] See Figure 6 This is a schematic diagram of the structure of a heat dissipation unit in a cooling working fluid heat dissipation device provided in some embodiments of this application;

[0145] See some examples. Figure 6 The heat dissipation unit 20 also includes:

[0146] The fan assembly 24 is located on the side of the heat exchange tube assembly 23 facing away from the liquid storage tank 40; the side of the fan assembly 24 is connected to the side plate 30.

[0147] In some examples, when there are two side plates 30, the two sides of the fan assembly 24 are each connected to one side plate 30.

[0148] In this embodiment, the fan assembly 24 provides the power for airflow, accelerates the heat dissipation efficiency of the heat exchange tube assembly 23, and ensures rapid cooling of the cooling medium. The fan assembly 24 can be electrically connected to the control box 70, and under the control of the control box 70, the fan assembly 24 can perform functions such as turning on / off and adjusting its speed.

[0149] In some examples, the direction in which the fan assembly 24 drives the airflow can be along the first receiving space 100, the heat exchange tube group 23 to the fan assembly 24, that is, air is drawn in from the first receiving space 100, passes through the heat exchange tube group 23, and is discharged by the fan assembly 24; the direction in which the fan assembly 24 drives the airflow can also be along the fan assembly 24, the heat exchange tube group 23 to the first receiving space 100, that is, air is drawn in from the fan assembly 24, passes through the heat exchange tube group 23, and is discharged by the first receiving space 100.

[0150] Since the airflow direction needs to pass through the first containment space 100, and in order to simplify the pipeline layout in the first containment space 100, the liquid storage tank 40 can usually be placed as close as possible to the heat dissipation unit 20. This will cause the liquid storage tank 40 to block part of the airflow path, affecting the heat dissipation effect of the heat dissipation unit 20.

[0151] See Figure 7 This is a schematic diagram of the air guiding principle of a liquid storage tank provided in some embodiments of this application;

[0152] See some examples. Figure 2 When the liquid storage tank 40 is fixed to the side plate 30, considering the obstruction of the liquid storage tank 40 to one side area of ​​the heat dissipation unit 20, the shape of the liquid storage tank 40 can be further designed, see [reference needed]. Figure 7 The improved storage tank 40 may include:

[0153] Body part 41 and air guide part 42; wherein, body part 41 and air guide part 42 are... Figure 7The dashed line A separates the two parts; the main body 41 is used to contain most of the cooling medium and is located on the side away from the heat dissipation unit 20.

[0154] The air guide section 42 is used to guide the airflow so that the flowing air can reach the area of ​​the heat dissipation unit 20 that was originally blocked by the liquid storage tank 40. The air guide section 42 is located on the side of the main body 41 near the heat dissipation unit 20; the air guide section 42 and the main body 41 together form the inner cavity of the liquid storage tank 40; see also Figure 7 The direction of airflow driven by fan assembly 24 is along fan assembly 24, heat exchange tube assembly 23 to the first accommodating space 100. Figure 7 Taking the fan assembly 24 (from left to right) as an example, when the fan assembly 24 is turned on, the air is blown into the heat dissipation unit 20 by the fan assembly 24 and carries away the heat of the heat dissipation unit 20 and continues to move to the right. When the air moves out of the heat dissipation unit 20, the air near the side plate 30 will change its flow direction under the action of the air guide 42, and after mixing with other air carrying heat, it will be discharged from the first containment space 100.

[0155] In some examples, the cross-section of the air guide 42 gradually decreases along the direction from the body 41 to the heat dissipation unit 20.

[0156] The air guide section 42 directs the incoming air, allowing it to flow more evenly across the heat exchange area of ​​the heat dissipation unit 20. This avoids the obstruction of airflow by the traditional straight-cylinder liquid storage tank and improves heat exchange efficiency.

[0157] See Figure 8 This is a schematic diagram of the air guiding principle of the liquid storage tank provided in other embodiments of this application.

[0158] See some examples. Figure 5 When the liquid storage tank 40 is connected to the first top plate 22, considering the obstruction of the liquid storage tank 40 to the top area of ​​the heat dissipation unit 20, the shape of the liquid storage tank 40 can be further designed, see [reference needed]. Figure 8 The improved storage tank 40 may include:

[0159] Body part 41 and air guide part 42; wherein, body part 41 and air guide part 42 are... Figure 7 The dashed line A separates the two parts; the main body 41 is used to contain most of the cooling medium and is located on the side away from the heat dissipation unit 20.

[0160] The air guide section 42 is used to guide the airflow so that the flowing air can reach the area of ​​the heat dissipation unit 20 that was originally blocked by the liquid storage tank 40. The air guide section 42 is located on the side of the main body 41 near the heat dissipation unit 20; the air guide section 42 and the main body 41 together form the inner cavity of the liquid storage tank 40; see also Figure 8 The direction of airflow driven by the fan assembly 24 is along the first accommodating space 100, the heat exchange tube group 23 to the fan assembly 24. Figure 8 Taking the fan assembly 24 (from right to left) as an example, when the fan assembly 24 is turned on, air is drawn into the first accommodating space 100. Before the drawn-in air enters the heat dissipation unit 20, the air in the middle position will change its flow direction under the action of the air guide 42 and gradually approach the top of the heat dissipation unit 20, so that air can be drawn into the entire height range of the heat dissipation unit 20. Finally, the air that takes away the heat of the heat dissipation unit 20 is discharged through the fan assembly 24.

[0161] It should be noted that, in Figure 7 and Figure 8 The airflow direction described is only an example; the same technical effect can be achieved when the direction is reversed, which will not be elaborated here.

[0162] In some examples, to achieve the same or similar effects, the liquid storage tank 40 can also be configured in other shapes, such as cylindrical, elliptical cylindrical, trapezoidal or conical structures, to meet the needs of airflow and containment of cooling fluid.

[0163] In some examples, in addition to designing the shape of the liquid storage tank 40 in the manner described in the aforementioned embodiments, when the installation position of the control box 70 is close to the heat dissipation unit 20 and there is a technical requirement to obstruct airflow, the same technical means can also be used to optimize the shape of the control box 70. For example, air guide components can be provided on the outer shell of the control box 70, or structures such as slopes and air guide grooves can be provided on the outer shell of the control box 70 to reduce the obstruction of airflow and ensure the maximum heat dissipation effect.

[0164] In some examples, the liquid storage tank 40, along a section parallel to the fixed plate 10, includes a first long side and a first short side, wherein the length of the first long side is greater than or equal to the length of the first short side; see also Figure 2 When the liquid storage tank 40 is connected to the side plate 30, it can connect to the side plate 30 along the first long side, thereby minimizing the area of ​​the liquid storage tank 40 obstructing the heat dissipation unit 20 and ensuring the heat dissipation effect; see also Figure 5 When the liquid storage tank 40 is connected to the first top plate 22, the liquid storage tank 40 may also include a first long side and a first short side along the cross section parallel to the side plate 30. In this case, it can be connected to the first top plate 22 along the first long side, which can also reduce the area of ​​the liquid storage tank 40 blocking the heat dissipation unit 20.

[0165] In some examples, the control box 70 includes a second long side and a second short side along a section parallel to the fixed plate 10, wherein the length of the second long side is greater than or equal to the length of the second short side; see also Figure 2 and Figure 5 When the control box 70 is connected to the side plate 30, it can be connected to the side plate 30 along the second long side, thereby minimizing the area of ​​the control box 70 blocking the heat dissipation unit 20 and ensuring the heat dissipation effect.

[0166] In this embodiment, by minimizing the area of ​​the heat dissipation unit 20 obstructed by other heat dissipation components (such as the liquid storage tank 40 and the control box 70), the heat dissipation unit can have a smaller design volume under the premise of a certain heat dissipation capacity, thereby reducing space occupation and ensuring heat dissipation requirements.

[0167] See Figure 9 This is a schematic diagram of the structure of a fan assembly provided in some embodiments of this application.

[0168] See some examples. Figure 9 The fan assembly 24 may include:

[0169] A back plate 241 is used to provide support for a fan 242; the back plate 241 is connected to the fixing plate 10 in a direction perpendicular to the fixing plate 10; at least one fan 242 is provided on the back plate 241.

[0170] In some examples, the back plate 241 and the mounting plate 10 can be secured with bolts or clips to ensure a stable connection;

[0171] In some examples, fan 242 can be connected to backplate 241 via bearings; the blades of fan 242 can be designed to be angle-adjustable to optimize airflow direction and volume and improve heat dissipation efficiency.

[0172] The fan assembly 24 also includes a second top plate 243 connected to the back plate 241; the second top plate 243 is connected to the first top plate 22; the second top plate 243 can form a stable connection structure with the first top plate 22 to ensure the stability of the back plate 241 in the horizontal direction and avoid the back plate 241 from deforming, tilting or vibrating due to wind resistance during the operation of the fan assembly 24.

[0173] In some examples, the back plate 241 and the second top plate 243 are connected to the side plate 30 on the same side. The back plate 241, the second top plate 243 and the side plate 30 form a T-shaped connection structure, which can increase the rigidity and stability of the overall structure.

[0174] In some examples, the back plate 241, the second top plate 243 and the side plate 30 can be connected by various methods such as screwing, riveting, welding, etc.

[0175] See some examples. Figure 6 The liquid storage tank 40 may include a liquid storage inlet 401 and a liquid storage outlet 402; the liquid storage inlet 401 is used to communicate with the first liquid outlet 222 so that the cooling working fluid in the heat dissipation unit 20 can be discharged into the liquid storage tank 40.

[0176] See Figure 10 This is a schematic diagram of the structure of the first connector provided in some embodiments of this application;

[0177] See some examples. Figure 10 The first connector 60 may be provided with a second connection port 601 and a second liquid outlet 602; wherein, the second connection port 601 is used to connect to the pipeline for cooling the charging gun so that the cooled working fluid can be discharged into the charging gun pipeline, and the second liquid outlet 602 is used to connect to the pump body 50.

[0178] See Figure 2 , Figure 6 and Figure 10 The pump body 50 is connected to the second liquid outlet 602 and the liquid storage outlet 402 through pipelines respectively; the pump body 50 is used to extract the cooling working medium in the liquid storage tank 40 through the liquid storage outlet 402 and transport it to the second liquid outlet 602.

[0179] See Figure 11 This is a schematic diagram of the cooling fluid flow direction provided in some embodiments of this application.

[0180] In this embodiment, the high-temperature cooling medium discharged from the charging gun first enters the heat dissipation unit 20 through the first connection port 221, and is accelerated to dissipate heat by the fan assembly 24. After cooling, the low-temperature cooling medium is discharged from the first liquid outlet 222 and enters the liquid storage tank 40 through the liquid storage inlet 401 for storage. When it is necessary to inject low-temperature cooling medium into the charging gun, the pump body 50 draws the cooling medium in the liquid storage tank 40 from the liquid storage outlet 402 and delivers it to the second liquid outlet 602 of the first connector 60, thus completing the cooling cycle. The cooling medium is then delivered to the charging gun pipeline through the second connection port 601.

[0181] See Figure 12 This is a schematic diagram of the control system of the control box provided in some embodiments of this application.

[0182] See some examples. Figure 12 The control box 70 can be electrically connected to the pump body 50 to control the pump body 50 to output the cooling working medium in the storage tank 40 through the storage outlet 402 to the second outlet 602.

[0183] See some examples. Figure 6 and Figure 12 The storage tank 40 may include a level sensor 403; the level sensor 403 is used to monitor the level of the cooling medium in the storage tank 40 in real time and transmit the monitoring data to the control box 70.

[0184] The control box 70 is electrically connected to the liquid level sensor 403 and is used to control the pump body 50 according to the electrical signal fed back by the liquid level sensor 403.

[0185] In some examples, the control box 70 can establish remote communication with CNC centers, mobile terminals, etc., and display the electrical signal fed back by the liquid level sensor 403 to the charging pile operation and maintenance personnel for remote monitoring.

[0186] In some examples, the control box 70 can work in conjunction with the control system within the charging gun or charging pile to achieve automatic heat dissipation control of the cooling medium during charging, ensuring charging efficiency and equipment safety. For example, the control box 70 can determine the start time and duration of the pump body 50 based on the temperature of the charging gun; the control box 70 can also optimize the cooling cycle through built-in algorithms and adjust the operating frequency of the pump body 50 in real time.

[0187] See some examples. Figure 10 and Figure 12 The first connector 60 may further include:

[0188] Pressure sensor 61; Pressure sensor 61 is used to monitor the pressure value of the cooling medium in the first connector 60 and transmit the monitoring data to the control box 70 in real time. The control box 70 adjusts the working state and working frequency of the pump body 50 according to the pressure value to avoid the cooling medium pressure being too high or too low.

[0189] The control box 70 is electrically connected to the pressure sensor 61 and is used to control the pump body 50 based on the pressure signal fed back by the pressure sensor 61.

[0190] In some examples, the control box 70 can establish remote communication with CNC centers, mobile terminals, etc., and display the pressure signal fed back by the pressure sensor 61 to maintenance personnel in real time, which is convenient for remote monitoring and adjustment.

[0191] See some examples. Figure 10 and Figure 12 The first connector 60 may further include:

[0192] Temperature sensor 62; Temperature sensor 62 is used to monitor the temperature of the cooling medium inside the first connector 60 and transmit the monitoring data to the control box 70 in real time. The control box 70 is electrically connected to the temperature sensor 62 and is used to activate the heat dissipation unit 20 based on the temperature signal fed back by the temperature sensor 62. For example, when the temperature sensor 62 indicates that the cooling medium temperature is too high, the control box 70 can control the fan assembly 24 of the heat dissipation unit 20 to start or increase its frequency to accelerate heat dissipation; when the temperature sensor 62 indicates that the cooling medium temperature is suitable, the control box 70 can reduce the operating frequency of the fan assembly 24 of the heat dissipation unit 20 or turn off the fan assembly 24.

[0193] The embodiments described above are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made based on the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A cooling working fluid heat dissipation device, characterized in that, include: Fixing plate (10); A heat dissipation unit (20) is disposed on the fixing plate (10); A side plate (30) is disposed on one side of the heat dissipation unit (20); two adjacent sides of the side plate (30) are respectively connected to the heat dissipation unit (20) and the fixing plate (10); and A liquid storage tank (40) and a control box (70); at least one of the liquid storage tank (40) and the control box (70) is disposed on the side plate (30).

2. The cooling working fluid heat dissipation device according to claim 1, characterized in that, The heat dissipation unit (20) includes: The base plate (21) is connected to the fixing plate (10); A first top plate (22) is disposed opposite to the bottom plate (21), and the first top plate (22) is located on the side of the bottom plate (21) away from the fixing plate (10); The heat exchange tube assembly (23) is located between the bottom plate (21) and the first top plate (22); The first top plate (22) is provided with a first connection port (221) and a first liquid outlet (222); the first connection port (221) is connected to the inlet of the heat exchange tube group (23), and the first liquid outlet (222) is connected to the outlet of the heat exchange tube group (23).

3. The cooling working fluid heat dissipation device according to claim 2, characterized in that, The liquid storage tank (40) includes a liquid storage inlet (401) and a liquid storage outlet (402); the liquid storage inlet (401) is used to communicate with the first liquid outlet (222); The cooling working fluid heat dissipation device further includes: The first connector (60) is provided with a second connection port (601) and a second liquid outlet (602); Pump body (50), the pump body (50) is connected to the second liquid outlet (602) and the liquid storage outlet (402) respectively through pipelines; The control box (70) is electrically connected to the pump body (50) and is used to control the pump body (50) to make the cooling working fluid flow sequentially through the storage tank (40), the storage outlet (402) and the second outlet (602).

4. The cooling working fluid heat dissipation device according to claim 2, characterized in that, The projection of the liquid storage tank (40) or the control box (70) on the side plate (30) is not higher than the projection of the first top plate (22) on the side plate (30).

5. The cooling working fluid heat dissipation device according to claim 2, characterized in that, The liquid storage tank (40) is connected to the first top plate (22).

6. The cooling working fluid heat dissipation device according to any one of claims 1 to 5, characterized in that, The liquid storage tank (40) includes: Body part(41); Air guide section (42); the air guide section (42) is located on the side of the main body (41) near the heat dissipation unit (20); the air guide section (42) and the main body (41) together form the inner cavity of the liquid storage tank (40); The cross-section of the air guide section (42) gradually decreases along the direction from the main body section (41) to the heat dissipation unit (20).

7. The cooling working fluid heat dissipation device according to any one of claims 1 to 4, characterized in that, The liquid storage tank (40) includes a first long side and a first short side along a cross section parallel to the fixed plate (10), wherein the length of the first long side is greater than or equal to the length of the first short side; the liquid storage tank (40) is connected to the side plate (30) along the first long side.

8. The cooling working fluid heat dissipation device according to claim 2, characterized in that, The heat dissipation unit (20) also includes: A fan assembly (24) is located on the side of the heat exchange tube assembly (23) facing away from the liquid storage tank (40); the side of the fan assembly (24) is connected to the side plate (30).

9. A charging pile, characterized in that, include: Casing, and The cooling working fluid heat dissipation device according to any one of claims 1 to 8 is disposed inside the housing.

10. A charging device, characterized in that, include: The charging pile as described in claim 9; and The charging gun is electrically connected to the charging pile, and the cooling working fluid heat dissipation device in the charging pile is used to dissipate heat for the charging gun.

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