Charging terminal cooling structure and mounting structure thereof

Abstract

The utility model discloses a charging terminal cooling structure and a mounting structure thereof. The charging terminal cooling structure comprises a ceramic shell, wherein the ceramic shell is provided with an integrated inner cavity with an opening at one end; an installation through hole is formed in the rear side of the inner cavity, terminal contact faces are formed on the left side and the right side of the inner cavity, and the two charging terminals are attached to the terminal contact faces respectively. The metal water tank is provided with an internal through cavity, the internal through cavity is provided with two water inlet and outlet nozzles, an opening is formed in the upper side of the internal through cavity, the rear side of the internal through cavity is provided with mounting fulcrums matched with the mounting via holes, and the two water inlet and outlet nozzles are communicated with a cooling liquid flowing cavity in the internal through cavity to form a cooling liquid circulation loop. According to the utility model, the integrated inner cavity is formed by ceramic, the built-in heat-conducting metal water tank is directly arranged in the ceramic shell, the charging terminal is contacted with the ceramic shell, and the charging terminal is cooled through the direct contact of the three; and the inner cavity can improve withstand voltage, is made of a ceramic material, and has excellent insulating property and high thermal conductivity.

Description

Technical Field

[0001] This utility model relates to the field of charging terminal cooling technology, specifically, a charging terminal cooling structure and its installation structure. Background Technology

[0002] With the development of new energy charging technology, the demand for fast charging is increasing, and the charging current is becoming larger. The terminals of traditional charging guns generate a lot of heat during the charging process. The high temperature generated by continuous charging will trigger over-temperature protection and interrupt charging. Therefore, temperature control is extremely important during high-power charging, and effective cooling measures need to be taken. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a charging terminal cooling structure and its installation structure. The charging terminal cooling structure is used to cool the terminals of the charging gun head, reduce the temperature rise, and realize fast charging.

[0004] The present invention solves the above problems through the following technical solution:

[0005] A charging terminal cooling structure includes: a charging terminal, a ceramic housing, and a metal water tank;

[0006] The ceramic housing has an integrated inner cavity with one end open; a mounting through hole is formed on the rear side of the integrated inner cavity, and terminal contact surfaces are formed on the left and right sides, with the left and right charging terminals respectively attached to the terminal contact surfaces of the charging terminals;

[0007] The metal water tank has an internal through chamber. The front of the internal through chamber is provided with two water inlet and outlet nozzles, the upper side is formed with an opening, and the rear side is provided with a mounting support point that matches the mounting through hole. The two water inlet and outlet nozzles are connected to the coolant flow chamber in the internal through chamber to form a coolant circulation loop.

[0008] As a further improvement, the mounting fulcrum is inserted into the mounting through hole to fix the metal water tank in place.

[0009] As a further improvement, when the ceramic shell and the metal water tank are installed in place, the internal through-cavity of the metal water tank seals the opening of the one-piece inner cavity.

[0010] As a further improvement, the charging terminals are attached to both sides of the ceramic housing by adhesive bonding.

[0011] As a further improvement, the internal through-cavity is tightly fitted with the integrated inner cavity.

[0012] As a further improvement, thermally conductive adhesive is filled between the metal water tank and the ceramic shell.

[0013] As a further improvement, the charging terminal and the current-carrying wire are connected by welding.

[0014] In addition, the present invention also solves the above problems through the following technical solutions:

[0015] A mounting structure for a charging terminal cooling structure includes a mounting housing for mounting the charging terminal cooling structure according to any one of the claims. The charging terminal is disposed through one end of the mounting housing away from the ceramic housing. The mounting housing is enclosed within the ceramic housing, and the other end of the mounting housing has an opening to facilitate the insertion of the entire charging terminal cooling structure into the mounting housing.

[0016] As a further improvement, the charging terminal is provided at one end of the mounting housing, which is used to allow the mounting fulcrum to pass through the mounting hole and the screw mounting hole and connect with the fastening screw to press the ceramic housing into the mounting housing.

[0017] As a further improvement, the charging terminal is provided with a shaft stop outside the mounting housing to prevent the charging terminal from moving back and forth. Through the cooperation of the mounting housing, the shaft stop, and the fastening screws, the charging terminal is directly attached to both sides of the ceramic housing.

[0018] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0019] (1) This utility model utilizes ceramic molding to create an integrated inner cavity, with a built-in heat-conducting metal water tank directly installed inside the ceramic shell. The charging terminal is in contact with the ceramic shell, and the charging terminal is cooled through direct contact between the three. The integrated inner cavity improves the withstand voltage and eliminates the hidden danger of insufficient electrical clearance caused by multi-piece ceramic installation.

[0020] (2) The ceramic shell of this utility model is made of ceramic material, which has excellent insulation performance and high thermal conductivity.

[0021] (3) The utility model can directly install the entire charging terminal cooling structure through a dedicated installation structure, without having to fix the charging terminal to the outside of the ceramic shell by physical means or other means, thereby improving the heat transfer effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a charging terminal cooling structure according to the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the ceramic shell of this utility model;

[0024] Figure 3This is a schematic diagram of the structure of the metal water tank of this utility model;

[0025] Figure 4 This is a schematic diagram of the installation structure of a charging terminal cooling structure according to the present invention;

[0026] Figure 5 A schematic diagram of the mounting structure and the cooperation of the charging terminal cooling structure of the utility model.

[0027] Figure label:

[0028] 1. Charging terminal; 2. Ceramic housing; 201. Inner cavity; 202. Mounting through hole; 203. Terminal contact surface; 3. Metal water tank; 301. Inlet and outlet nozzles; 302. Through chamber; 303. Mounting support point; 4. Mounting housing; 5. Shaft stop; 6. Fastening screw. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example:

[0031] This embodiment uses an integrated high thermal conductivity ceramic for heat transfer, which is convenient to assemble. The integrated cavity can improve the withstand voltage and eliminate the hidden danger of insufficient electrical clearance caused by multi-piece ceramic installation.

[0032] The charging terminals are in direct contact with the ceramic cooling water tank, which not only meets the insulation requirements but also uses materials with high thermal conductivity to achieve good heat dissipation while meeting electrical safety requirements.

[0033] Combined with appendix Figure 1-3 As shown, a charging terminal cooling structure includes: a charging terminal 1, a ceramic housing 2, and a metal water tank 3. Specifically, the charging terminal 1 is fitted to the ceramic housing 2, and the ceramic housing 2 is fitted to the metal water tank 3. Heat generated during charging is removed through heat exchange, achieving cooling. The ceramic housing not only ensures good thermal conductivity but also provides insulation for the charging terminal 1, allowing it to carry a large current for charging.

[0034] The ceramic housing 2 has the following structure: an integral inner cavity 201 with one end open, an installation through hole 202 formed on the rear side of the integral inner cavity 201, and terminal contact surfaces 203 formed on the left and right sides, with two charging terminals 1 attached to the charging terminals 1.

[0035] The metal water tank 3 has the following structure: two inlet and outlet nozzles 301 arranged on the left and right, an internal through chamber 302 with an opening on the upper side, and a mounting point 303. The two inlet and outlet nozzles 301 are arranged on the front side of the internal through chamber 302 and are connected through the internal through chamber 302 to form a coolant circulation loop. The mounting point 303 is arranged on the rear side of the mounting point 303. When the metal water tank 3 is installed from the opening of the integrated inner cavity 201, the mounting point 303 is inserted into the mounting through hole 202 to fix the metal water tank 3, and the opening of the integrated inner cavity 201 is closed through the internal through chamber 302 of the metal water tank 3.

[0036] During assembly, the metal water tank 3 is installed inside the ceramic housing 2, and the charging terminal 1 is attached to both sides of the ceramic housing 2. During use, the cooling medium flows into the through chamber 302 through the inlet and outlet water nozzles 301, and then flows back to the other inlet and outlet water nozzle 301, forming a coolant circulation loop; at the same time, the heat generated on the charging terminal 1 is transferred to the metal water tank 3 through the ceramic housing 2, thereby carrying away the heat and cooling the charging terminal 1. The heat is carried away from the charging terminal through the coolant circulation loop, so that the heat does not accumulate at the charging terminal and the charging terminal temperature is avoided from becoming too high.

[0037] As a preferred option, welding is used to connect the current-carrying wire and the charging terminal to ensure the reliability of the connection. This reduces the connection resistance compared to conventional crimping methods, thereby reducing the heat generated at the connection between the wire and the terminal according to Joule's law. It also simplifies the design of the charging terminal and the connection process between the charging terminal and the wire, making it easier to operate and implement throughout the assembly process.

[0038] Optionally, the charging terminals can be attached to both sides of the ceramic housing by adhesive. Of course, they can also be attached to both sides of the ceramic housing by other methods.

[0039] Furthermore, see the appendix. Figure 4-5 An installation structure for a charging terminal cooling structure includes a mounting housing 4, which is used to install the charging terminal on both sides of a ceramic housing. Specifically, the end of the charging terminal 1 away from the ceramic housing 2 passes through one end of the mounting housing 4, the ceramic housing 2 is enclosed inside the mounting housing 4, and the other end of the mounting housing 4 has an opening to facilitate the installation of the entire charging terminal cooling structure and its insertion into the mounting housing 4.

[0040] Preferably, the charging terminal 1 is provided at one end of the housing 4, so that the mounting fulcrum 303 can pass through the mounting through hole 202 and the screw mounting hole and be connected to the fastening screw 6 to press the ceramic housing 2 into the housing 4.

[0041] Optionally, a shaft stop 5 is provided outside the mounting housing 4 for the charging terminal 1 to prevent the charging terminal 1 from moving back and forth. In this case, the charging terminal can also be directly attached to both sides of the ceramic housing by the cooperation of the mounting housing 4, the shaft stop 5, and the fastening screws 6.

[0042] The core of this utility model is:

[0043] 1. A one-piece inner cavity is created using ceramic molding, with a built-in heat-conducting metal water tank directly installed inside the ceramic shell. The charging terminals are in contact with the ceramic shell, and the direct contact between the three components cools the charging terminals. The one-piece inner cavity improves the withstand voltage and eliminates the potential hazards of insufficient electrical clearance caused by multi-piece ceramic mounting.

[0044] 2. The internal through-cavity is tightly fitted with the integrated inner cavity, or thermally conductive adhesive can be filled between the metal water tank and the ceramic shell. Considering actual working conditions, the thermally conductive adhesive can not only transfer heat, but also buffer the force acting on the cooling water tank during use.

[0045] 3. The metal water tank has a sufficiently large coolant flow chamber inside, which allows the coolant to fully contact the coolant flow chamber and carry away the heat transferred to the cooling water tank.

[0046] 4. The ceramic shell is made of ceramic material, which has excellent insulation properties and high thermal conductivity.

[0047] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A cooling structure for a charging terminal, characterized in that, include: Charging terminals, ceramic housing, and metal water tank; The ceramic housing has an integrated inner cavity with one end open; a mounting through hole is formed on the rear side of the integrated inner cavity, and terminal contact surfaces are formed on the left and right sides, with the left and right charging terminals respectively attached to the terminal contact surfaces of the charging terminals; The metal water tank has an internal through chamber. The front of the internal through chamber is provided with two water inlet and outlet nozzles, the upper side is formed with an opening, and the rear side is provided with a mounting support point that matches the mounting through hole. The two water inlet and outlet nozzles are connected to the coolant flow chamber in the internal through chamber to form a coolant circulation loop.

2. The charging terminal cooling structure according to claim 1, characterized in that, The mounting fulcrum is inserted into the mounting through hole to securely install the metal water tank.

3. The charging terminal cooling structure according to claim 1, characterized in that, When the ceramic shell and the metal water tank are installed in place, the internal through-cavity of the metal water tank seals the opening of the integrated inner cavity.

4. The charging terminal cooling structure according to claim 1, characterized in that, The charging terminals are attached to both sides of the ceramic housing by adhesive bonding.

5. The charging terminal cooling structure according to claim 1, characterized in that, The internal through-cavity is tightly fitted to the integrated inner cavity.

6. The charging terminal cooling structure according to claim 1, characterized in that, Thermally conductive adhesive is used to fill the space between the metal water tank and the ceramic shell.

7. A charging terminal cooling structure according to any one of claims 1-6, characterized in that, The charging terminal is connected to the current-carrying wire by welding.

8. A mounting structure for a charging terminal cooling structure, characterized in that, The device includes a mounting housing for mounting a charging terminal cooling structure as described in any one of the claims. The charging terminal is disposed at one end of the mounting housing away from the ceramic housing. The ceramic housing is enclosed inside the mounting housing. The other end of the mounting housing has an opening to facilitate the insertion of the entire charging terminal cooling structure into the mounting housing.

9. The mounting structure of the charging terminal cooling structure according to claim 8, characterized in that, The mounting housing has a charging terminal through it, and one end of the terminal is provided with a screw mounting hole. This hole allows the mounting fulcrum to pass through the mounting hole and the screw mounting hole and connect with the fastening screw to press the ceramic housing into the mounting housing.

10. The mounting structure of the charging terminal cooling structure according to claim 9, characterized in that, The charging terminal is provided with a shaft stop outside the mounting housing to prevent the charging terminal from moving back and forth. Through the cooperation of the mounting housing, the shaft stop and the fastening screws, the charging terminal is directly attached to both sides of the ceramic housing.

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