Household charging pile air cooling heat dissipation device

Abstract

The utility model provides a household charging pile air cooling heat dissipation device which comprises a protection box and a charging pile body, the protection box is fixed to a stand column or a wall, the protection box is divided into a mounting bin and an air duct through a first partition plate, the charging pile body is mounted in the mounting bin, and a cover plate is arranged on the air duct; an axial flow fan is installed on the upper portion of the first partition plate, the protection box is provided with an opening in the lower portion of the air duct, and an insect-proof net is arranged at the opening. The air duct is separated in the protection box through the first partition plate, airflow is fed into the protection box through the air duct under the action of the axial fan, the content of water drops and dust in the airflow is reduced through the second partition plate and the filter cartridge in the air duct, normal work of the charging pile body is guaranteed, the filter area of the filter cartridge is large, and the filtering effect is good. According to the charging pile provided by the utility model, the resistance when airflow flows through the filter cartridge can be reduced, so that enough air supply quantity is ensured, the charging pile body can be ensured to have good heat dissipation in the protection box, and the charging pile body can charge a vehicle at rated power.

Description

Technical Field

[0001] This application relates to the technical field of charging piles, and particularly to an air-cooled heat dissipation device for household charging piles. Background Art

[0002] Because household charging piles have lower charging costs and can utilize off-peak hours at night for charging, many car owners with parking spaces will install charging piles on their parking spaces. For some open-air parking spaces, in order to prevent rain from wetting the charging piles and prevent unauthorized use of the charging piles, a protective box is usually installed outside the charging piles to cover the charging piles. The existing household charging piles are mainly 3KW and 7KW. During charging, both the charging pile and the charging cable will generate heat, and the heat can generally be dissipated through air flow. However, for the charging pile installed in the protective box, due to the poor air fluidity, the heat will accumulate in the protective box. There is a temperature detection module inside the charging pile. When the temperature exceeds the set value, the charging pile will reduce the charging power to protect the circuit, thereby increasing the charging time. For this reason, people think of installing a fan on the protective box to force air flow, so as to achieve the purpose of heat dissipation. However, the open air contains more dust, and there are also small water droplets mixed in rainy days. Blowing directly into the protective box easily affects the operation of the charging pile. Therefore, a filtering device is set in the air duct. For example, the Chinese patent with the application number 202121817261.4 discloses an intelligent dust-proof and heat-dissipating charging pile, including a charging box. A lifting structure is provided on the outer wall of the back of the charging box, and a box door is hinged and an inspection plate is screwed on one outer wall of the charging box. A partition is welded on the inner wall of the charging box, and an installation structure is installed on the inner wall of the charging box at the bottom of the partition. A filter pipe is provided on the air inlet pipe to reduce the entry of dust and rainwater into the charging box. However, the diameter of the filter pipe is small, and the through-diameter is small, resulting in a large resistance when the air flow passes through the filter pipe, thereby reducing the air supply volume. Its through-diameter is small, and the filter pipe is easily blocked by dust. Therefore, an air-cooled heat dissipation device for household charging piles is needed. A baffle is set in the air duct to reduce water droplets and dust in the air flow. At the same time, a large-area filter cylinder is also set in the air duct. The filtering area is large, and the air flow has a small resistance when flowing through, ensuring sufficient air supply volume and ensuring that the charging pile can take out the heat from the protective box through the air flow during charging. Summary of the Utility Model

[0003] In order to solve the above problems, this application proposes an air-cooled heat dissipation device for household charging piles. A baffle is set in the air duct to reduce water droplets and dust in the air flow. At the same time, a large-area filter cylinder is also set in the air duct. The filtering area is large, and the air flow has a small resistance when flowing through, ensuring sufficient air supply volume and ensuring that the charging pile can take out the heat from the protective box through the air flow during charging.

[0004] This application is achieved through the following technical solutions:

[0005] This application proposes an air-cooled heat dissipation device for a household charging pile, including: a protection box and a charging pile body. The protection box is fixed on a column or a wall. The protection box is divided into an installation chamber and an air duct by a first partition board. The charging pile body is installed in the installation chamber, and a cover plate is provided on the air duct. An axial flow fan is installed on the upper part of the first partition board. The protection box has an opening at the lower part of the air duct, and an insect-proof net is provided at the opening. A card slot is provided in the middle of the air duct, and a filter cylinder is installed on the card slot. The upper end of the filter cylinder is closed and the lower end is open, and the lower part of the filter cylinder is connected to the card slot.

[0006] Further, a second partition board is provided in the air duct, and the second partition board is installed in the lower part of the air duct in a vertically staggered manner.

[0007] Further, the distance between the upper and lower parts of the second partition boards is 2 cm to 3 cm, and a gap of 1 cm to 2 cm is left between the end of the second partition board and the inner wall of the air duct.

[0008] Further, a rubber pad sticker is provided on the outer periphery of the axial flow fan, and the axial flow fan is electrically connected to the charging pile body.

[0009] Further, a louver exhaust port is provided on one side of the lower part of the protection box. An input wire and a charging wire are provided at the lower part of the charging pile body. Slots and through holes are provided at the corresponding positions of the input wire and the charging wire on the bottom of the protection box.

[0010] Further, a box door is provided on one side of the protection box, and one side of the box door is connected to the protection box through a hinge.

[0011] Further, filter cloths are covered on the outer periphery and the upper part of the filter cylinder.

[0012] The beneficial effects of this application: The air duct is separated in the protection box by the first partition board. Under the action of the axial flow fan, the air flow is sent into the protection box through the air duct. The second partition board and the filter cylinder in the air duct are used to reduce the content of water droplets and dust in the air flow, ensuring the normal operation of the charging pile body. The filter area of the filter cylinder is large, which can reduce the resistance when the air flow passes through the filter cylinder, so as to ensure sufficient air supply volume, ensure good heat dissipation of the charging pile body in the protection box, and enable the charging pile body to charge the vehicle at the rated power. Description of the Drawings

[0013] Figure 1 It is a structural schematic diagram of the present utility model;

[0014] Figure 2 It is a structural schematic diagram of the air duct of the present utility model;

[0015] In the figure: 1 - protection box, 2 - charging pile body, 3 - first partition board, 4 - installation bin, 5 - air duct, 6 - cover plate, 7 - axial flow fan, 8 - insect-proof net, 9 - filter cartridge, 10 - second partition board, 11 - louver exhaust port, 12 - input wire, 13 - charging wire, 14 - box door. Detailed implementation manners

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. The same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0018] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0019] As Figures 1 to 2 shown, an embodiment of the present invention provides a household charging pile air-cooled heat dissipation device, including: a protection box 1 and a charging pile body 2. The protection box 1 is fixed on a column or a wall. The protection box 1 is divided into an installation bin 4 and an air duct 5 by a first partition board 3. The charging pile body 2 is installed in the installation bin 4. A cover plate 6 is provided on the air duct 5; an axial flow fan 7 is installed on the upper part of the first partition board 3. The protection box 1 has an opening at the lower part of the air duct 5, and an insect-proof net 8 is provided at the opening; a card slot is provided in the middle of the air duct 5, and a filter cartridge 9 is installed on the card slot. The upper end of the filter cartridge 9 is closed, and the lower end is open. The lower part of the filter cartridge 9 is connected to the card slot.

[0020] Outdoor parking spaces require the charging pile body 2 to be installed in the protection box 1 to prevent rainwater from entering the charging pile body 2. When the charging pile body 2 is working, its internal electronic components will generate heat. Since the air flow in the inner cavity of the protection box 1 is poor, the heat will accumulate in the protection box 1. Therefore, in this application, a first partition 3 is provided in the protection box 1. The protection box 1 is divided into an installation bin 4 and an air duct 5 by the first partition 3. The installation bin 4 is used for installing the charging pile body 2. The air duct 5 is covered with a cover plate 6, so that the air duct 5 forms a channel with openings at both ends and a sealed middle part. By setting an axial flow fan 7 at the upper part of the air duct 5, under the action of the axial flow fan 7, the air flow passes through the insect-proof net 8 and then enters the air duct 5, and enters the installation bin 4 from the upper part of the air duct 5. At this time, the air pressure in the protection box 1 is higher than the outside, and the air flow will spontaneously discharge from the louver exhaust port 11 or the slots and through holes at the lower part of the protection box 1. When the air flow is discharged, it takes away the heat in the installation bin 4, avoiding the situation that the temperature of the charging pile body 2 exceeds the threshold due to heat accumulation and reducing the charging power.

[0021] As Figure 2 shown, in order to prevent dust and small droplets from entering the protection box 1 when inhaling air, a second partition 10 and a filter cartridge 9 are provided in the air duct 5. The second partition 10 is installed vertically and staggeredly at the lower part of the air duct 5 to form a winding channel. When the air flow passes through the second partition 10, the air flow with low density can quickly turn, while the small droplets in the air flow impact on the second partition 10 under the action of inertia, thereby reducing the droplet content in the air flow and avoiding the droplets soaking the filter cartridge 9, resulting in dust caking on the filter cartridge 9 and reducing the filtering ability of the filter cartridge 9. The filter cartridge 9 is provided with a filter cloth, which can filter the dust in the air flow and prevent the dust from entering the protection box 1 to ensure the cleanliness inside the box.

[0022] In a preferred embodiment, as Figure 2 shown, a second partition 10 is provided in the air duct 5. The second partition 10 is installed vertically and staggeredly at the lower part of the air duct 5 to form a winding channel. When the air flow passes through the second partition 10, the air flow with low density can quickly turn, while the small droplets in the air flow impact on the second partition 10 under the action of inertia, thereby reducing the droplet content in the air flow and avoiding the droplets soaking the filter cartridge 9, resulting in dust caking on the filter cartridge 9 and reducing the filtering ability of the filter cartridge 9.

[0023] In a specific embodiment, the vertical distance between the second partitions 10 is 2 cm to 3 cm, and there is a gap of 1 cm to 2 cm between the end of the second partition 10 and the inner wall of the air duct 5, forming a winding channel, forcing the droplets to impact on the second partition 10 before they have time to collide, reducing the droplet content in the air flow.

[0024] Specifically, a rubber pad sticker is provided on the outer periphery of the axial flow fan 7, and the axial flow fan 7 is electrically connected to the charging pile body 2. The rubber pad sticker can effectively fill the gaps, preventing air flow from passing through the gaps between the axial flow fan 7 and the interior. Moreover, the rubber pad has a shock-absorbing effect, preventing the axial flow fan 7 from vibrating and causing noise in the protection box 1. The axial flow fan 7 is installed inside the protection box 1. When the air generated by the axial flow fan 7 passes through the air duct 5, it is attenuated after multiple reflections by the second partition 10, thereby reducing the noise generated by the axial flow fan 7. The axial flow fan 7 is electrically connected to the charging pile body 2. The low-voltage power supply module in the charging pile body 2 provides 12V or 24V direct current to the axial flow fan 7 to drive the axial flow fan 7 to rotate, and the axial flow fan 7 is only started when the charging pile body 2 is charging, reducing the dust accumulation speed of the filter cartridge 9.

[0025] In a specific embodiment, as Figure 2 shown, a louver exhaust port 11 is provided on one side of the lower part of the protection box 1, an input wire 12 and a charging wire 13 are provided on the lower part of the charging pile body 2, and slots and through holes are provided at the positions corresponding to the input wire 12 and the charging wire 13 on the bottom of the protection box 1. The air sent by the axial flow fan 7 is discharged through the louver exhaust port 11, the slots, and the through holes, thereby forming an air convection and taking out the heat flow generated by the charging pile body 2 from the protection box 1.

[0026] In a preferred embodiment, as Figure 1 shown, a box door 14 is provided on one side of the protection box 1. One side of the box door 14 is connected to the protection box 1 by a hinge. After the box door 14 is closed, the protection box 1 forms a sealed space, forcing the air flow to flow along a predetermined path, thereby taking away the heat.

[0027] Both the outer periphery and the upper part of the filter cartridge 9 are covered with filter cloth. Both the outer periphery and the upper part of the filter cartridge 9 can be used for filtering. The filter cartridge 9 has a large filtering area and a small resistance when the air flow passes through the filter cartridge 9, thereby ensuring sufficient air supply volume and ensuring good heat dissipation of the charging pile body in the protection box, enabling the charging pile body to charge the vehicle at the rated power.

[0028] Of course, the present application can also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative labor belong to the scope protected by the present application.

Claims

1. A household charging pile air-cooling heat dissipation device, characterized in that: include: A protection box (1) and a charging pile body (2), wherein the protection box (1) is fixed on a column or a wall, and the protection box (1) is divided into an installation compartment (4) and an air duct (5) by a first partition (3), the charging pile body (2) is installed in the installation compartment (4), and a cover plate (6) is provided on the air duct (5); an axial flow fan (7) is installed on the upper part of the first partition (3), and the protection box (1) is provided with an opening at the lower part of the air duct (5), and an insect-proof net (8) is provided at the opening; a card slot is provided in the middle part of the air duct (5), and a filter cartridge (9) is installed on the card slot, the upper end of the filter cartridge (9) is closed, and the lower end is open, and the lower part of the filter cartridge (9) is connected to the card slot.

2. A household charging pile air-cooling heat dissipation device according to claim 1, characterized in that: The air duct (5) is provided with a second partition plate (10), and the second partition plates (10) are staggeredly installed in the lower part of the air duct (5) along the vertical direction.

3. A household charging pile air-cooling heat dissipation device according to claim 2, characterized in that: The second partitions (10) are spaced 2 cm to 3 cm apart from each other, and a gap of 1 cm to 2 cm is left between the end of the second partition (10) and the inner wall of the air duct (5).

4. A household charging pile air-cooling heat dissipation device according to claim 1, characterized in that: A rubber pad is provided on the outer periphery of the axial flow fan (7), and the axial flow fan (7) is electrically connected to the charging pile body (2).

5. A household charging pile air-cooling heat dissipation device according to claim 1, characterized in that: A shutter exhaust port (11) is provided on one side of the lower portion of the protection box (1), an input line (12) and a charging line (13) are provided on the lower portion of the charging pile body (2), and a slot and a through hole are provided on the bottom of the protection box (1) at positions corresponding to the input line (12) and the charging line (13).

6. A household charging pile air-cooling heat dissipation device according to claim 1, characterized in that: A box door (14) is provided on one side of the protection box (1), and one side of the box door (14) is connected to the protection box (1) via a hinge.

7. A household charging pile air-cooling heat dissipation device according to claim 1, characterized in that: The outer circumference and upper part of the filter cartridge (9) are covered with filter cloth.

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