Charging pile with noise reduction function

Abstract

The utility model provides a charging pile with a noise reduction function, and relates to the technical field of charging piles, a charging module, a cooling fan, an air inlet and an air outlet are arranged in the charging pile, an air inlet channel is arranged between the air inlet and the charging module, and an air outlet channel is arranged between the air outlet and the charging module. The air inlet, the air outlet and the heat dissipation fan are located at different height positions, the air inlet channel and the air outlet channel form a zigzag air channel, noise reduction assemblies are arranged in the air inlet channel and the air outlet channel, under the action of the heat dissipation fan, airflow passes through the zigzag air channel to dissipate heat of the charging module, and under the action of the noise reduction assemblies, noise is reduced. The charging module is located on the upper side in the pile, the system heat dissipation fan is located on the back of the charging module and right faces the charging module, the air inlet and the air outlet are located on the lower side and are far away from a noise source, the air inlet channel and the air outlet channel are internally provided with sound absorption cotton or sound insulation cotton or micropore sound absorption plates, and the noise of the charging pile is effectively reduced while heat dissipation is guaranteed.

Description

Technical Field

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

[0002] As charging equipment for new energy vehicles, the number and power of charging piles are increasing with the continuous popularization and development of new energy vehicles. Charging piles generate a lot of heat during operation. The greater the power, the greater the heat generated. Most existing charging piles use forced air cooling to dissipate heat. The charging module in the pile has a built-in cooling fan to dissipate heat for the charging module. The entire pile is also equipped with a system cooling fan to dissipate heat for the charging module and other heat-generating components. The fan will generate a lot of noise when running at high speed, especially the built-in fan in the charging module has a higher speed and the noise is also greater.

[0003] As the number of charging piles increases, the noise problem of charging piles becomes increasingly prominent. Figure 5 As shown, an air inlet assembly is installed on the door panel facing the air inlet of the charging module, and a system cooling fan and an air outlet assembly are installed on the door panel facing the air outlet of the charging module. When the charging pile is working, the noise of the built-in cooling fan of the charging module and the noise of the system cooling fan will be directly transmitted from the air inlet and outlet, affecting the car owner and surrounding residents. In view of the above defects, this application is proposed. Utility Model Content

[0004] The utility model aims to provide a charging pile with a noise reduction function, which effectively reduces the noise propagated by the built-in cooling fan of the charging module and the system cooling fan.

[0005] In order to solve the above problems, the utility model provides a charging pile with a noise reduction function, wherein a charging module, a heat dissipation fan, an air inlet and an air outlet are arranged in the charging pile, an air inlet channel is provided between the air inlet and the charging module, an air outlet channel is provided between the air outlet and the charging module, the air inlet and the air outlet are at different heights from the heat dissipation fan, the air inlet channel and the air outlet channel form a tortuous air duct, and noise reduction components are arranged in the air inlet channel and the air outlet channel, under the action of the heat dissipation fan, the air flow passes through the tortuous air duct to dissipate the heat of the charging module, and the noise is reduced under the action of the noise reduction component.

[0006] According to an embodiment of the utility model, the air inlet and the air outlet are both located at the lower part of the charging pile.

[0007] According to an embodiment of the utility model, a dustproof component is provided at the air inlet for filtering dust and impurities in the gas during air intake.

[0008] According to an embodiment of the utility model, an inwardly recessed air inlet bin is provided at the air inlet, and the top position of the air inlet bin is connected to the air inlet channel.

[0009] According to an embodiment of the utility model, a shutter assembly is provided at the air inlet.

[0010] According to an embodiment of the utility model, a bottom air inlet is provided at the bottom of the air inlet channel, and a dustproof component is installed at the bottom air inlet.

[0011] According to an embodiment of the utility model, the heat dissipation fan includes a built-in fan of the charging module and a system heat dissipation fan, and the built-in fan and the system heat dissipation fan are respectively arranged on a side close to the air inlet channel and a side close to the air outlet channel.

[0012] According to an embodiment of the present invention, the air inlet and the air outlet are respectively arranged on the front and rear sides of the charging pile.

[0013] According to an embodiment of the utility model, the noise reduction component is sound-absorbing cotton or a microporous sound-absorbing board.

[0014] According to an embodiment of the utility model, the noise reduction component is arranged along the wall in the air inlet channel and the air outlet channel.

[0015] The beneficial effect of the utility model is that the charging module is located on the upper side of the pile, the system heat dissipation fan is located on the back of the charging module facing the charging module, and the air inlet and air outlet are located on the lower side, the air inlet and outlet are far away from the noise source, and the air inlet channel and the air outlet channel are equipped with sound-absorbing cotton or sound-insulating cotton or microporous sound-absorbing panels, which effectively reduces the noise of the charging pile while ensuring heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of a charging pile with noise reduction function in Example 1;

[0018] Figure 2 This is a schematic diagram of the openings at the air inlet and outlet;

[0019] Figure 3 This is a schematic diagram of the overall structure of a charging pile with noise reduction function in Example 2;

[0020] Figure 4 This is a schematic diagram of the overall structure of a charging pile with noise reduction function in Example 3;

[0021] Figure 5 This is a schematic diagram of a charging pile that uses traditional forced air cooling. DETAILED DESCRIPTION

[0022] The following description is only used to disclose the utility model so that those skilled in the art can implement the utility model. The embodiments described below are only for example, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the utility model.

[0023] [Example 1]

[0024] A charging pile with noise reduction function, such as Figure 1 A charging module 17, a heat dissipation fan, an air inlet 12 and an air outlet 23 are provided in the charging pile. An air inlet channel is provided between the air inlet 12 and the charging module 17, and an air outlet channel is provided between the air outlet 23 and the charging module 17. The air inlet 12 and the air outlet 23 are at different heights from the heat dissipation fan. The air inlet channel and the air outlet channel form a tortuous air duct. The air inlet 12 and the air outlet 23 are respectively provided on the front and rear sides of the charging pile. Noise reduction components are provided in the air inlet channel and the air outlet channel. Under the action of the heat dissipation fan, the air flow passes through the tortuous air duct to dissipate the heat of the charging module 17, and the noise is reduced under the action of the noise reduction component.

[0025] The heat dissipation structure of traditional charging piles is as follows: Figure 5 As shown, an air inlet window is installed on the door panel 1 directly opposite to the air inlet of the charging module 2, and a system cooling fan 4 and an air outlet window are installed on the door panel 5 directly opposite to the air outlet of the charging module 2. The arrow shows the cooling wind direction. The air inlet and outlet are very close to the noise source, namely the system cooling fan 4 and the charging module cooling fan 3. When the charging pile is working, the fan noise is almost unobstructed and directly transmitted from the air inlet of the door panel 1 and the air outlet of the door panel 5.

[0026] In this scheme, if Figure 1 The charging module is arranged in the upper area of ​​the pile body for easy maintenance and operation. The air inlet 12 and the air outlet 23 are arranged in the lower part of the whole pile, and the ventilation area of ​​the air inlet 12 and the air outlet 23 is sufficient. According to this arrangement, a long air inlet channel is formed between the air inlet 12 and the charging module 17. The built-in fan 16 in the charging module 17 is arranged on the side close to the air inlet channel. A long air outlet channel 20 is formed between the air outlet 23 and the system cooling fan 19. The outer wall of the air outlet channel 20 is composed of an air outlet door plate 18. The air outlet door plate 18 is provided with an inclined surface 21 for guiding air. Noise reduction components are added in the air inlet channel and the air outlet channel. The noise is attenuated in the process of propagating from the upper charging module and the system cooling fan to the lower air inlet and outlet. At the same time, the noise transmitted through the door plate is reduced, thereby reducing the noise of the whole pile.

[0027] Furthermore, the openings at the air inlet 12 and / or the air outlet 23 are as follows: Figure 2As shown, it has the effect of preventing foreign matter from entering. Figure 1 An inwardly recessed air inlet bin 13 is provided at the air inlet 12, and the top position of the air inlet bin 13 is connected to the air inlet channel. The air inlet bin 13 is used to prevent rainwater from entering the interior of the pile body. A dustproof component 14 is provided at the top position of the air inlet bin 13 to prevent dust and other impurities in the air from entering the interior of the pile body. The dustproof component can adopt dustproof filter materials such as dustproof cotton and filter screen.

[0028] The noise reduction components are arranged along the wall in the air inlet channel and the air outlet channel, and do not have an obstructive effect on the air flow.

[0029] The noise reduction component is other sound absorbing materials such as sound absorbing cotton or microporous sound absorbing board.

[0030] When the charging pile is working, the built-in fan 16 of the charging module 17 runs at high speed, sucking in external air from the air inlet 12, and after being filtered by the dustproof component 14, entering the charging module 17 and taking away the heat generated by the operation of the charging module, and then passing through the system cooling fan 19, it is discharged from the air outlet 23. Correspondingly, the noise generated by the high-speed operation of the built-in fan 16 of the charging module and the noise generated by the operation of the system cooling fan will be transmitted from the air inlet and outlet, and the medium and low frequency noise will also be transmitted through the door panel. In the process of propagating to the air inlet and outlet, the noise will be attenuated after multiple reflections in the air inlet channel and the air outlet channel. At the same time, part of the noise is absorbed by the sound-absorbing cotton in the channel, and the sound-absorbing cotton also reduces the noise transmitted through the door panel.

[0031] Embodiment 2 is different from Embodiment 1 in that Figure 3 In this embodiment, a shutter assembly 11 is provided at the air inlet 12. Dust-proof cotton is also installed in the shutter assembly 11 to prevent dust and other impurities in the air from entering the interior of the pile body. The shutter plays a role in preventing rainwater. With this solution, there is no need to set up an air inlet bin 13, which can increase the space of the air inlet channel and allow a larger noise reduction component to be arranged therein.

[0032] Embodiment 3, on the basis of embodiment 1 or 2, as Figure 4 A bottom air inlet 25 is provided at the bottom of the air inlet channel, a dustproof component 26 is installed at the bottom air inlet 25, and the bottom air inlet 25 is opened at the front sealing plate 24 of the charging pile base, which further reduces noise by lowering the air inlet.

[0033] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed and modified in any way.

Claims

1. A charging pile with noise reduction function, characterized in that: A charging pile is provided with a charging module (17), a heat dissipation fan, an air inlet (12) and an air outlet (23); an air inlet channel is provided between the air inlet (12) and the charging module (17); an air outlet channel is provided between the air outlet (23) and the charging module (17); the air inlet (12) and the air outlet (23) are located at different heights from the heat dissipation fan; the air inlet channel and the air outlet channel form a zigzag air duct; noise reduction components are provided in the air inlet channel and the air outlet channel; under the action of the heat dissipation fan, air flows through the zigzag air duct to dissipate heat for the charging module (17); and noise is reduced under the action of the noise reduction component.

2. The charging pile with noise reduction function according to claim 1, characterized in that: The air inlet (12) and the air outlet (23) are both located at the lower part of the charging pile.

3. The charging pile with noise reduction function according to claim 2, characterized in that: The air inlet (12) is provided with a dustproof component for filtering dust impurities in the gas during air intake.

4. The charging pile with noise reduction function according to claim 3, characterized in that: An inwardly recessed air inlet bin (13) is provided at the air inlet (12), and the top of the air inlet bin (13) is connected to the air inlet channel.

5. The charging pile with noise reduction function according to claim 3, characterized in that: A shutter assembly (1) is provided at the air inlet (12).

6. The charging pile with noise reduction function according to claim 3 or 5, characterized in that: A bottom air inlet (25) is provided at the bottom of the air inlet channel, and a dustproof component is installed at the bottom air inlet (25).

7. The charging pile with noise reduction function according to any one of claims 1 to 5, characterized in that: The heat dissipation fan comprises a built-in fan (16) of the charging module (17) and a system heat dissipation fan (19), and the built-in fan (16) and the system heat dissipation fan (19) are arranged on a side close to the air inlet channel and a side close to the air outlet channel, respectively.

8. The charging pile with noise reduction function according to claim 7, characterized in that: The air inlet (12) and the air outlet (23) are respectively arranged on the front and rear sides of the charging pile.

9. The charging pile with noise reduction function according to claim 8, characterized in that: The noise reduction component is sound-absorbing cotton or a microporous sound-absorbing board.

10. The charging pile with noise reduction function according to claim 9, characterized in that: The noise reduction component is arranged along the wall in the air inlet channel and the air outlet channel.

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