Rapid cooling charging pile

Abstract

The utility model relates to the technical field of charging piles, in particular to a rapidly cooled charging pile. Comprising a charging pile body, a cooling device is arranged in the charging pile body, and an exhaust port corresponding to the cooling device in position is formed in the charging pile body; the cooling device comprises a cooling assembly, and the cooling assembly comprises a first transistor, a first ceramic layer, a fixed reed and an electrically insulated spring mounting frame; the LED lamp further comprises a radiator and a heat conductor, the heat conductor is fixedly installed on the radiator, and the cooling assembly is fixed to the heat conductor. Wherein the heat conductor, the first ceramic layer, the first transistor, the spring mounting frame and the fixed reed are sequentially stacked, and the fixed reed presses the first transistor to the heat conductor; according to the utility model, a cooling structure with a smaller volume is realized, and the transistor is pressed to the heat conductor through the fixed reed, so that the effective contact area among the transistor, the ceramic layer and the heat conductor is larger, the heat transfer efficiency is improved, the cooling speed is higher, and the cooling effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, in particular to a charging pile with rapid cooling. Background Art

[0002] With the popularization of electric vehicles, the performance requirements for charging piles are increasing day by day. During the charging process, a large amount of heat is generated by the power module of the charging pile. If the heat cannot be dissipated in time and effectively, it will not only affect the performance and service life of the charging pile, but also may cause safety problems. Especially in the fast charging mode, the charging current and power increase significantly, and the generated heat also rises sharply, posing a higher challenge to the cooling system.

[0003] At present, the cooling methods of charging piles on the market mainly include air cooling and liquid cooling. The air cooling method dissipates heat through air flow, but the heat conduction efficiency of air is relatively low. For high-power charging piles, it is difficult to meet the demand for rapid heat dissipation. Moreover, the air cooling structure requires a large space to arrange components such as heat dissipation ducts and fans, resulting in a large volume of the charging pile, which is not conducive to installation and use in places with limited space.

[0004] Although the liquid cooling method has a certain improvement in heat dissipation efficiency, the existing liquid cooling structures are often relatively complex and not compact enough. In some liquid-cooled charging piles, the layout of the coolant circulation pipes is not reasonable enough, occupying more space, and there is still room for improvement in the heat exchange efficiency between the coolant and the heat-generating components. In addition, for electronic components in direct contact with the coolant, such as transistors, how to ensure good contact between them to improve the heat transfer efficiency is also an urgent problem to be solved.

[0005] Therefore, it is of great practical significance to develop a charging pile cooling structure with a smaller volume, faster cooling speed, and better cooling effect. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a technical effect of a charging pile with rapid cooling that has a smaller volume and a faster cooling speed for the above-mentioned existing technical problems.

[0007] In view of this, the utility model provides a charging pile with rapid cooling, including:

[0008] A charging pile main body, in which a cooling device is provided, and an exhaust port corresponding to the position of the cooling device is provided on the charging pile;

[0009] The cooling device includes a cooling component, and the cooling component includes a first transistor, a first ceramic layer, a fixing reed, and an electrically insulating spring mounting frame;

[0010] It further includes a radiator and a heat conductor, the heat conductor is fixedly installed on the radiator, and the cooling component is fixed on the heat conductor;

[0011] Among them, a heat conductor, a first ceramic layer, a first transistor, a spring mounting frame, and a fixing reed are stacked in sequence, and the fixing reed presses the first transistor against the heat conductor.

[0012] Furthermore, it further includes:

[0013] A fixing member, which is used to mount the fixing reed and the spring mounting frame on the heat conductor.

[0014] Furthermore, two transistors are arranged side by side and fixed on the heat conductor through an integral fixing reed.

[0015] Furthermore, the spring mounting frame includes a mounting portion, and the mounting portion is inserted into an opening of the heat conductor.

[0016] Furthermore, any part of the heat conductor, the fixing reed, and the fixing member is connected to the zero potential or the protective potential.

[0017] Furthermore, a mounting groove is provided on the spring mounting frame, and the middle of the fixing reed is a bent positioning portion.

[0018] The beneficial effects of the present utility model are:

[0019] 1. The present utility model realizes a cooling structure with a smaller volume, and through the fixing reed, the transistor is pressed against the heat conductor, so that the effective contact area between the transistor, the ceramic layer, and the heat conductor is larger, improving the heat transfer efficiency, thereby making the cooling speed faster and the cooling effect better.

[0020] 2. The present utility model has a symmetrically arranged integral fixing reed, with symmetric force, making the structure more stable, and adding a group of transistors can increase the cooling efficiency. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the charging pile main body of the present utility model;

[0022] Figure 2 is a three-dimensional structural schematic diagram of the spring mounting frame of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the cooling device of the present utility model.

[0024] The marks in the figure are shown as:

[0025] 1. Charging pile main body; 2. Cooling device; 3. First transistor; 4. First ceramic layer; 5. Fixing reed; 6. Spring mounting frame; 7. Radiator; 8. Heat conductor; 9. Fixing member; 10. Mounting portion; 11. Positioning portion; 12. Exhaust port. Detailed Embodiments

[0026] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application belong to the scope of protection of the present application.

[0027] Embodiment 1:

[0028] This embodiment provides a charging pile with rapid cooling, including:

[0029] A charging pile main body 1, in which a cooling device 2 is provided, and an exhaust port 12 corresponding to the position of the cooling device 2 is provided on the charging pile;

[0030] The cooling device 2 includes a cooling component, and the cooling component includes a first transistor 3, a first ceramic layer 4, a fixing reed 5, and an electrically insulating spring mounting frame 6;

[0031] It further includes a radiator 7 and a heat conductor 8. The heat conductor 8 is fixedly installed on the radiator 7, and the cooling component is fixed on the heat conductor 8;

[0032] Among them, the heat conductor 8, the first ceramic layer 4, the first transistor 3, the spring mounting frame 6, and the fixing reed 5 are stacked in sequence, and the fixing reed 5 presses the first transistor 3 towards the heat conductor 8.

[0033] The charging pile main body 1, the charging pile main body 1 includes a pile body. The pile body is mostly made of steel, aluminum alloy or low-carbon steel plate, is rectangular in shape, and has rounded corner surfaces locally. Reinforcing ribs or reinforcing plates are welded to enhance the strength. A charging module including a charger, a controller, a power supply, etc. is installed inside the pile body. The charger is responsible for power conversion, the controller regulates the charging state and parameters, and the power supply powers the module. The charging control module of the AC charging pile can also identify the vehicle model, confirm the charging demand, and control the charging method and power; the DC charging pile has a greater power and further includes a first transistor 3. The first transistor 3 is a power conversion power transistor and will generate a large amount of heat during operation. Exhaust ports 12 are provided on both sides of the pile body. The cooling device 2 is arranged inside the charging pile and corresponds to the position of the exhaust port 12. The cooling device 2 includes a cooling component, and the cooling component includes a first transistor 3, a first ceramic layer 4, a fixing reed 5, and an electrically insulating spring mounting frame 6.

[0034] The spring mounting frame 6 has a containing structure for placing the fixed spring 5, and a supporting side plate in contact with the ceramic layer is provided on the spring mounting frame 6. The supporting side plate increases the effective distance between the fixed spring 5 and the first transistor 3, thereby improving the electrical insulation performance. The spring mounting frame 6 is also provided with a guide pin for inserting into the guide hole on the heat conductor 8, or is provided with a guide clip clamped on both sides of the heat conductor 8, so as to achieve precise positioning with the heat conductor 8 during installation.

[0035] The spring mounting frame 6 is made of electrically insulating material to prevent electrical conduction between the fixed spring piece 5 and the transistor and avoid the risk of short circuit. In addition, the spring mounting frame 6 must have a certain deformation ability, such as plastic, to facilitate applying pressure to the first transistor 3 through the fixed spring piece 5.

[0036] The first ceramic layer 4 is disposed below the first transistor 3 to separate the heat conductor 8 and the transistor, blocking the direct electrical connection between the heat conductor 8 and the transistor to avoid the risk of short circuit. The ceramic layer has good thermal conductivity and can effectively transfer the heat generated by the transistor to the heat conductor 8.

[0037] A thermal pad may be provided between the ceramic layer and the thermal conductor 8 and the transistor to further fill the gap and optimize the conduction efficiency.

[0038] The fixed spring sheet 5 is in the shape of a bent sheet, one end of which is bent and abuts against the spring mounting frame 6, and is fixed to the heat conductor 8 by a fixing member 9. The radiator 7 includes a heat sink, which is convenient for discharging the heat from the heat conductor 8, and the radiator 7 may include a cooling fan to quickly discharge the heat from the heat sink through the exhaust hole.

[0039] Through the above structure, a cooling structure with a smaller volume is realized, and the transistor is pressed against the heat conductor 8 by fixing the spring 5, so that the effective contact area between the transistor, the ceramic layer and the heat conductor 8 is larger, and the heat transfer efficiency is improved, thereby making the cooling speed faster and the cooling effect better.

[0040] Embodiment 2:

[0041] This embodiment provides a fast cooling charging pile, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] Also includes:

[0043] The fixing member 9 is used to install the fixing spring leaf 5 and the spring mounting frame 6 on the heat conductor 8 .

[0044] The fixing member 9 is a screw or a bolt, and is used to install the fixing spring leaf 5 and the spring mounting frame 6 on the heat conductor 8. At least two fixing members 9 are provided.

[0045] Two transistors are arranged side by side and fixed on the heat conductor 8 by an integral fixing reed 5. The middle position of the fixing reed 5 is connected through the positioning portion 11, and the positioning portion 11 is installed in the installation groove of the spring installation frame 6. The fixing reed 5 is symmetrically arranged, and symmetrically provided with a heat conductor 8, a second ceramic layer, a second transistor, a spring installation frame 6 and a fixing reed 5 which are stacked in sequence from bottom to top.

[0046] Through the symmetrically arranged integral fixing reed 5, the force is symmetric, making the structure more stable, and adding a group of transistors can increase the cooling efficiency.

[0047] Embodiment 3:

[0048] This embodiment provides a fast-cooling charging pile, which, in addition to including the technical solutions of the above embodiments, also has the following technical features.

[0049] The spring installation frame 6 includes an installation portion 10, and the installation portion 10 is inserted into the opening of the heat conductor 8.

[0050] The installation portion 10 is rectangular, and the opening of the heat conductor 8 is a rectangular groove. Insert the installation portion 10 into the opening of the heat conductor 8 and then fix it through the fixing member 9, making the positioning of the spring installation frame 6 more accurate.

[0051] Any part of the heat conductor 8, the fixing reed 5 and the fixing member 9 is connected to the zero potential or the protective potential.

[0052] It mainly plays the role of ensuring personnel safety, ensuring the stable operation of the equipment and enhancing the reliability of the system.

[0053] It helps to maintain the stability of the potential of each part of the equipment and avoid equipment damage caused by potential difference. For example, in the cooling device 2 of the charging pile, the heat conductor 8 is connected to the zero potential or the protective potential, which can prevent external electromagnetic fields from introducing interference through potential difference, ensure the normal operation of devices such as transistors, and extend the service life of the equipment.

[0054] The spring installation frame 6 is provided with an installation groove, and the middle of the fixing reed 5 is a bent positioning portion 11.

[0055] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, all of which belong to the protection scope of the present application.

Claims

1. A fast-cooling charging pile, characterized in that, Comprising: A charging pile main body (1), a cooling device (2) is provided inside the charging pile main body (1), and an exhaust port (12) corresponding to the position of the cooling device (2) is provided on the charging pile; The cooling device (2) includes a cooling component, and the cooling component includes a first transistor (3), a first ceramic layer (4), a fixing reed (5), and an electrically insulating spring mounting frame (6); It further includes a radiator (7) and a heat conductor (8), the heat conductor (8) is fixedly installed on the radiator (7), and the cooling component is fixed on the heat conductor (8); Wherein, the heat conductor (8), the first ceramic layer (4), the first transistor (3), the spring mounting frame (6), and the fixing reed (5) are stacked in sequence, and the fixing reed (5) presses the first transistor (3) towards the heat conductor (8).

2. The fast-cooling charging pile according to claim 1, wherein It further includes: A fixing member (9), the fixing member (9) is used to mount the fixing reed (5) and the spring mounting frame (6) on the heat conductor (8).

3. The fast-cooling charging pile according to claim 1, characterized in that, Two transistors are arranged side by side and are fixed on the heat conductor (8) through an integral fixing reed (5).

4. A fast-cooling charging pile according to claim 1, characterized in that, The spring mounting frame (6) includes a mounting portion (10), and the mounting portion (10) is inserted into the opening of the heat conductor (8).

5. A fast-cooling charging pile according to claim 1, wherein Any part of the heat conductor (8), the fixing reed (5), and the fixing member (9) is connected to zero potential or protective potential.

6. A fast-cooling charging pile according to claim 3, characterized in that, The spring mounting frame (6) is provided with a mounting groove, and the middle of the fixing reed (5) is a bent positioning portion (11).

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