Charging liquid cooling structure

Abstract

The utility model discloses a charging liquid cooling structure which comprises a charging terminal and a ceramic cooling water tank. A groove is formed in the middle of the ceramic cooling water tank, and a mounting hole is formed in the groove; the two sides of the groove are each provided with a liquid flowing cavity, and the liquid flowing cavities are communicated through a liquid through channel. A water inlet and outlet nozzle is arranged on one outer side wall of the liquid flowing chamber, a terminal contact surface is arranged on the other outer side wall of the liquid flowing chamber, and terminal limiting surfaces are arranged on two sides of the terminal contact surface; the mounting plate of the charging terminal is attached to the terminal contact surface of the ceramic cooling water tank, and a heat-conducting glue layer is arranged at the attaching position. The ceramic cooling water tank is adopted, and the charging terminal is allowed to be in direct contact with the water tank. The corrugated surface is arranged on the contact surface of the charging terminal and the ceramic water tank, so that the contact area is obviously increased, and the heat exchange efficiency is greatly improved. The charging terminal can be effectively cooled during working by utilizing direct contact and increasing the heat exchange area, and overheating is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns, in particular to a charging liquid cooling structure. Background Art

[0002] With the continuous progress of new energy vehicle charging technology, the market demand for fast charging technology is increasing day by day, which leads to an increasing charging current; in high-power charging operations, significant heat accumulation will occur in the terminal part of the charging gun due to the passage of current. If the terminal is continuously heated during the charging process, it may trigger the over-temperature protection mechanism built into the charging device, thus interrupting the charging process. Therefore, when implementing high-power charging, temperature control of the charging gun terminal becomes particularly critical. Content of the Utility Model

[0003] The purpose of the utility model is to provide a charging liquid cooling structure to solve the above problems. The utility model directly cools the terminal of the charging gun head. Compared with the traditional liquid cooling technology, in this application, the charging terminal is directly in contact with the cooling water tank made of ceramic material; ceramic with a relatively high thermal conductivity coefficient is selected, which not only meets the necessary insulation requirements but also significantly improves the heat transfer efficiency, thus achieving a better heat dissipation effect. The direct cooling method of the utility model has a significant improvement in cooling efficiency, can effectively manage and reduce the heat generated during the charging process, and thus improve the safety and charging efficiency of the charging process.

[0004] The utility model realizes the above purpose through the following technical solutions:

[0005] A charging liquid cooling structure includes a charging terminal and a ceramic cooling water tank;

[0006] The ceramic cooling water tank includes a water inlet and outlet nozzle, a terminal contact surface, a terminal limiting surface, a mounting hole, a liquid flow chamber, and a liquid through-channel;

[0007] A groove is provided in the middle of the ceramic cooling water tank, and a mounting hole is provided in the groove; a liquid flow chamber is provided on each side of the groove, and the liquid flow chambers are connected through a liquid through-channel;

[0008] A water inlet and outlet nozzle is provided on an outer side wall of the liquid flow chamber, a terminal contact surface is provided on the other outer side wall of the liquid flow chamber, and terminal limiting surfaces are provided on both sides of the terminal contact surface;

[0009] The mounting plate of the charging terminal is attached to the terminal contact surface of the ceramic cooling water tank, and a thermal conductive adhesive layer is provided at the attachment position.

[0010] A further solution is that the ceramic cooling water tank is integrally formed, or formed by bonding or welding.

[0011] A further solution is that the ceramic cooling water tank is a cooling water tank made of a highly heat-conductive insulating material or a metal surface with insulation treatment.

[0012] A further solution is that the terminal contact surface has a series of concave-convex or wavy textures.

[0013] A further solution is that the terminal limiting surface limits the installation of the mounting plate.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The present utility model adopts a ceramic cooling water tank, allowing the charging terminal to be in direct contact with the water tank. By setting a corrugated surface on the contact surface between the charging terminal and the ceramic water tank, the contact area is significantly increased, thus greatly improving the heat exchange efficiency. Utilizing direct contact and increasing the heat transfer area ensures that the charging terminal can be effectively cooled during operation and prevents overheating.

[0016] Filling a heat-conductive adhesive on the contact surface between the charging terminal and the cooling water tank not only enhances heat transfer but also plays a buffering role. While transferring heat, the heat-conductive adhesive can effectively absorb and disperse the mechanical stress acting on the cooling water tank during use, protecting the integrity of the water tank structure and extending its service life.

[0017] A sufficiently large coolant flow chamber is designed inside the cooling water tank to ensure that the coolant can fully contact every part of the chamber, thereby maximizing the absorption and removal of the heat transferred to the water tank and improving the cooling efficiency.

[0018] The ceramic material not only has excellent insulation performance, which can effectively isolate the electrical part from the coolant to ensure electrical safety, but also has a high heat conductivity and can quickly conduct heat, making it an ideal heat management material.

[0019] The corrosion-resistant characteristics of the ceramic material enable it to be compatible with different grades of coolant, eliminating the need to worry about the corrosion of the coolant to the water tank, providing a wider range of coolant choices for the system, and also simplifying the maintenance work. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Figure 2This is the structural diagram of the ceramic cooling water tank of the present utility model.

[0023] Figure 3 This is the sectional structural diagram of the ceramic cooling water tank of the present utility model. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative efforts shall fall within the scope protected by the present utility model.

[0025] In any embodiment, as Figure 1 shown, a charging liquid cooling structure of the present utility model includes a charging terminal 1 and a ceramic cooling water tank 2;

[0026] The ceramic cooling water tank 2 includes a water inlet / outlet nozzle 201, a terminal contact surface 202, a terminal limiting surface 203, a mounting hole 204, a liquid flow chamber 205, and a liquid through-channel 206;

[0027] A groove is provided in the middle of the ceramic cooling water tank 2, and a mounting hole 204 is provided in the groove; a liquid flow chamber 205 is provided on each side of the groove, and the liquid flow chambers 205 are communicated through a liquid through-channel 206; the design of the liquid through-channel enables the coolant to flow into from one side chamber, enter the other side chamber after passing through the through-channel, and then circulate back through the outlet, ensuring uniform flow of the coolant inside the entire water tank, avoiding local overheating, and enhancing the overall thermal balance and cooling effect.

[0028] A water inlet / outlet nozzle 201 is provided on an outer side wall of the liquid flow chamber 205, which serves as the inlet and outlet of the coolant to ensure that the coolant can smoothly enter and exit the chamber to form a cycle. A terminal contact surface 202 is provided on another outer side wall of the liquid flow chamber 205, which is the area in direct contact with the charging terminal or other components that need to be cooled, and ensures effective heat conduction through a high thermal conductivity material or a thermal conductive adhesive layer. Terminal limiting surfaces 203 are provided on both sides of the terminal contact surface 202; the terminal limiting surfaces 203 perform installation limiting on the mounting plate. The function of the limiting surface is to perform precise installation limiting on the mounting plate, ensure the fitting degree and positioning accuracy between the mounting plate and the ceramic cooling water tank, and prevent poor contact or reduced heat conduction efficiency caused by improper installation. Through this design, not only is the efficient circulation of the coolant achieved, but also the tight connection between the key components and the cooling system is ensured, improving the efficiency and reliability of the overall thermal management.

[0029] The mounting plate of the charging terminal 1 is fitted to the terminal contact surface 202 of the ceramic cooling water tank 2, and a heat-conducting adhesive layer is provided at the fitting position. The function of the heat-conducting adhesive layer is to ensure that the heat generated by the charging terminal can be effectively transferred to the ceramic cooling water tank, thereby improving the heat dissipation efficiency to ensure that the device will not be affected by overheating in terms of performance or safety during high-speed charging.

[0030] The ceramic cooling water tank 2 is integrally formed, or formed by bonding or welding. Integral formation means that the water tank may be directly made from a single piece of material through processes such as shaping and sintering. This process can ensure the integrity and strength of the water tank structure and reduce potential leakage risks. Forming by bonding or welding, on the other hand, is to combine multiple ceramic components or metal with ceramic to form a complete water tank structure. Bonding usually uses high-temperature and corrosion-resistant ceramic adhesives to ensure the sealing and strength of the joint; welding may involve the combination of a metal frame and ceramic, using special solders or techniques such as laser welding to achieve high-strength connections.

[0031] The ceramic cooling water tank 2 is a cooling water tank made of a highly heat-conductive insulating material or with a metal surface insulation treatment. It aims to improve the cooling efficiency while maintaining the insulation performance. This design combines the advantages of heat conductivity and insulation, and can prevent the diffusion of heat to unnecessary areas while quickly conducting and cooling heat, maintaining the thermal stability of the system. Its high heat conductivity can quickly take away heat, while the insulation treatment prevents current leakage or unnecessary conduction of heat energy to the surrounding environment, thereby improving the safety and efficiency of the entire system.

[0032] The terminal contact surface 202 has a series of concave-convex or wavy textures. Setting it as a corrugated surface has the following advantages for this application:

[0033] Increase the contact area: The corrugated surface can significantly increase the contact area compared to a flat surface.

[0034] Improve contact stability: The corrugated surface design helps to form more engagement points between the contact surfaces. These engagement points can resist loosening caused by external factors such as vibration and impact, thereby improving the stability and reliability of the connection.

[0035] Enhance heat dissipation performance: Since the corrugated surface increases the contact area and also increases the heat dissipation area, it helps to more effectively dissipate the heat generated when current passes through, preventing performance degradation or damage caused by overheating.

[0036] Adapt to different tolerances: During the manufacturing and assembly process, due to factors such as materials and processes, there may be slight dimensional differences (tolerances) between the terminals. The corrugated surface design can compensate for these tolerances to a certain extent, enabling good contact even within different tolerance ranges.

[0037] When the present utility model is implemented, efficient thermal management is achieved through the coolant circulation path. The coolant enters the liquid flow chamber 205 from the water inlet / outlet nozzle 201 on one side, then passes through the liquid through-channel 206, is evenly distributed and enters the liquid flow chamber on the other side, and finally circulates and returns through the water inlet / outlet nozzle on the other side. This design ensures the uniform distribution and efficient circulation of the coolant within the entire ceramic cooling water tank 2, effectively avoiding local overheating phenomena, enhancing the overall thermal balance and cooling effect of the system.

[0038] On the other hand, precise installation and limitation of the mounting plate are carried out through the limiting surface, ensuring the fitting degree and positioning accuracy between the mounting plate and the ceramic cooling water tank, preventing poor contact or reduced heat conduction efficiency caused by improper installation, ensuring the tight connection between the key components and the cooling system, and enhancing the effectiveness and reliability of the overall thermal management.

[0039] As described above, the above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights. Additionally, it should be noted that in the above specific implementation manner, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present utility model does not separately describe various possible combination methods. Furthermore, any arbitrary combination can be made between the various different implementation manners of the present utility model, as long as it does not violate the idea of the present utility model, it should also be regarded as the content disclosed by the present utility model.

Claims

1. A charging liquid cooling structure, characterized in that: It comprises a charging terminal (1) and a ceramic cooling water tank (2); The ceramic cooling water tank (2) comprises a water inlet and outlet nozzle (201), a terminal contact surface (202), a terminal limiting surface (203), a mounting hole (204), a liquid flow chamber (205), and a liquid through-channel (206); A groove is provided in the middle of the ceramic cooling water tank (2), and a mounting hole (204) is provided in the groove; a liquid flow chamber (205) is provided on each side of the groove, and the liquid flow chambers (205) are connected via a liquid through-channel (206); An outer wall of the liquid flow chamber (205) is provided with a water inlet and outlet nozzle (201), another outer wall of the liquid flow chamber (205) is provided with a terminal contact surface (202), and terminal limiting surfaces (203) are provided on both sides of the terminal contact surface (202); The mounting plate of the charging terminal (1) is arranged to fit the terminal contact surface (202) of the ceramic cooling water tank (2), and a heat-conducting adhesive layer is provided at the fitting location.

2. A charging liquid cooling structure as claimed in claim 1, characterized in that: The ceramic cooling water tank (2) is integrally formed, or formed by bonding or welding.

3. A charging liquid cooling structure as claimed in claim 1, characterized in that: The ceramic cooling water tank (2) is a cooling water tank made of insulating material with high thermal conductivity or metal surface insulation treatment.

4. A charging liquid cooling structure as claimed in claim 1, characterized in that: The terminal contact surface (202) has a concave-convex or wavy texture.

5. The charging liquid cooling structure according to claim 1, characterized in that: The terminal limiting surface (203) limits the installation of the installation plate.

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