Charging pile

Abstract

The utility model discloses a charging pile. The charging pile comprises a shell, a fan assembly and a noise reduction assembly. The shell is provided with a mounting cavity, the mounting cavity is used for containing the power module, an air inlet and an air outlet are formed in the side wall of the mounting cavity, and the air inlet, the mounting cavity and the air outlet are sequentially communicated. The fan assembly is installed in the installation cavity, drives air outside the shell to flow through the air inlet and the power module and dissipates heat generated by the power module to the outside of the shell through the air outlet. The noise reduction assembly is installed in the installation cavity and covers the air inlet, and a hollow part is arranged on the noise reduction assembly. According to the charging pile, the problem that noise is large in the working process of the charging pile is solved.

Description

Technical Field

[0001] The present application relates to the technical field of noise reduction air duct systems, and in particular to a charging pile. Background Art

[0002] The new energy vehicle charging pile industry refers to the industry that provides power charging services for new energy vehicles. With the increasing global attention to environmental issues and the rapid development of the new energy vehicle market, charging piles, as one of the infrastructures of new energy vehicles, have become a key component of energy transformation and sustainable development. Against the background of the rapid development of charging piles, the noise problem generated during the operation of charging piles has attracted more and more attention from consumers.

[0003] In the prior art, the internal space of the charging pile is relatively small, and the power module will generate a lot of heat during operation. The charging pile needs to dissipate heat to maintain the stable operation of the power module. Most power modules adopt a forced air cooling heat dissipation mode. The fan is used to drive the outside air into the charging pile from the air inlet, flow through the power module, and then flow out of the outside through the air outlet, thereby dissipating the heat of the power module. The fan is set at the air outlet position of the air duct structure. During the charging process, the power module and the fan are the main sources of noise, and the noise can be transmitted directly from the air inlet and outlet. When the temperature of the charging source module is high, the faster the fan speed, the greater the noise in the charging pile, causing noise pollution to the external environment. Utility Model Content

[0004] The main purpose of the present application is to provide a charging pile to solve the problem of high noise during the operation of the charging pile mentioned in the background technology.

[0005] According to one aspect of the present application, a charging pile is provided, comprising:

[0006] A housing, wherein the housing is provided with an installation cavity, the installation cavity is used to accommodate the power module, and the side wall of the installation cavity is provided with an air inlet and an air outlet, and the air inlet, the installation cavity and the air outlet are connected in sequence;

[0007] A fan assembly, wherein the fan assembly is installed in the installation cavity, and the fan assembly drives the air outside the housing to flow through the air inlet and the power module and dissipates the heat generated by the power module to the outside of the housing through the air outlet;

[0008] A noise reduction component is installed in the installation cavity and covers the air inlet, and a hollow portion is provided on the noise reduction component.

[0009] Furthermore, the noise reduction component includes a sound absorbing member, and the sound absorbing member includes at least one, at least one of the sound absorbing members covers the air inlet, and the hollow portion is provided on the sound absorbing member.

[0010] Furthermore, the sound absorbing member includes sound absorbing cotton, and the holes on the sound absorbing cotton form the hollow portion.

[0011] Furthermore, the noise reduction component also includes a noise reduction shell, which is buckled on the inner wall of the installation cavity. A positioning hole is provided on the noise reduction shell, and the sound absorbing component is installed in the positioning hole.

[0012] Furthermore, the fan assembly includes a mounting bracket and a fan, the mounting bracket covers the air outlet, the mounting bracket includes a plurality of mounting holes, the number of the fans is multiple, and the multiple fans are mounted in the mounting holes one by one.

[0013] Furthermore, the installation cavity includes:

[0014] An air inlet duct, the air inlet duct is communicated with the air inlet, and the noise reduction component is located in the air inlet duct;

[0015] An air outlet duct, the air outlet duct is communicated with the air outlet, and the fan assembly is located in the air outlet duct;

[0016] A power supply accommodating chamber is provided between the air inlet duct and the air outlet duct, and the air inlet duct, the power supply accommodating chamber and the air outlet duct are connected in sequence, and the power supply module is installed in the power supply accommodating chamber.

[0017] Further, along the first direction, the air inlet and the air outlet are respectively located on opposite sides of the installation cavity, and the projection of the air inlet along the first direction and the projection of the air outlet along the first direction are at least partially staggered.

[0018] Furthermore, the charging pile also includes a shutter, and the shutter is arranged at at least one of the air inlet and the air outlet.

[0019] Furthermore, a sound-absorbing layer is provided on the shutter.

[0020] Furthermore, the charging pile also includes a filter, and the filter is arranged at at least one of the air inlet and the air outlet.

[0021] In this application, during the operation of the charging pile, the power module will generate a lot of heat. The fan assembly can drive the air flow in the installation cavity, so that a negative pressure environment is formed in the installation cavity, and the air outside the shell flows into the installation cavity through the air inlet under the action of pressure. The air flows into the installation cavity through the air inlet, and then flows through the power module, and takes away the heat generated by the power module. Finally, the air flows out of the shell through the air outlet, so as to achieve the purpose of effectively ventilating and cooling the power module. In this process, the noise reduction assembly covers the air inlet, so that the air passing through the air inlet flows through the hollow part of the noise reduction assembly. When the air enters the installation cavity through the air inlet, the noise reduction assembly can reduce the impact of the air on the power module and the inner wall of the installation cavity, thereby reducing the noise generated. In addition, the noise reduction assembly can effectively disperse the noise generated when the air flows into the installation cavity, and can also block the noise generated when the fan and the power module are running, so as to prevent the noise from being directly transmitted to the outside of the shell through the air inlet and the air outlet, and effectively reduce the noise when the charging pile is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the charging pile disclosed in this application (I);

[0024] Figure 2 This is a schematic diagram of the structure of the charging pile disclosed in this application (II);

[0025] Figure 3 A cross-sectional view of the charging pile disclosed in this application;

[0026] Figure 4 This is a schematic diagram of the structure of the air inlet door plate disclosed in this application;

[0027] Figure 5 This is a schematic diagram of the structure of the fan assembly disclosed in this application.

[0028] The above drawings include the following reference numerals:

[0029] 10. Shell; 11. Installation cavity; 111. Air inlet duct; 112. Air outlet duct; 113. Power supply accommodating cavity; 12. Power supply module; 121. Air inlet; 122. Air outlet; 20. Fan assembly; 21. Installation bracket; 22. Fan; 30. Noise reduction assembly; 32. Sound absorbing component; 321. Sound absorbing cotton; 33. Noise reduction shell; 40. Shutter; 50. Filter; 60. Air inlet door plate; 70. Air outlet door plate. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0033] like Figures 1 to 5 As shown, the present application provides a charging pile. The charging pile includes a shell 10, a fan assembly 20 and a noise reduction assembly 30. The shell 10 is provided with an installation cavity 11, and the installation cavity 11 is used to accommodate a power module 12. The side wall of the installation cavity 11 is provided with an air inlet 121 and an air outlet 122, and the air inlet 121, the installation cavity 11 and the air outlet 122 are connected in sequence. The fan assembly 20 is installed in the installation cavity 11. The fan assembly 20 drives the air outside the shell 10 to flow through the air inlet 121 and the power module 12 and dissipates the heat generated by the power module 12 to the outside of the shell 10 through the air outlet 122. The noise reduction assembly 30 is installed in the installation cavity 11 and covers the air inlet 121. A hollow portion is provided on the noise reduction assembly 30.

[0034] In this embodiment, during the operation of the charging pile, the power module 12 generates a large amount of heat. The fan assembly 20 can drive the air flow in the installation cavity 11, so that a negative pressure environment is formed in the installation cavity 11, and the air outside the housing 10 flows into the installation cavity 11 through the air inlet 121 under the action of pressure. The air flows into the installation cavity 11 through the air inlet 121, and then flows through the power module 12, and takes away the heat generated by the power module 12. Finally, the air flows out of the housing 10 through the air outlet 122, so as to achieve the purpose of effectively ventilating and cooling the power module 12. In this process, the noise reduction assembly 30 covers the air inlet 121, so that the air passing through the air inlet 121 flows through the hollow part of the noise reduction assembly 30. When the air enters the installation cavity 11 through the air inlet 121, the noise reduction assembly 30 can reduce the impact of the air on the power module 12 and the inner wall of the installation cavity 11, thereby reducing the noise generated. In addition, the noise reduction component 30 can effectively disperse the noise generated when air flows into the installation cavity 11, and can also block the noise generated when the fan 22 and the power module 12 are running, preventing the noise from being directly transmitted to the outside of the shell 10 through the air inlet 121 and the air outlet 122, thereby effectively reducing the noise when the charging pile is working.

[0035] like Figures 1 to 3 As shown, in one embodiment, the noise reduction component 30 includes a sound absorbing member 32. The sound absorbing member 32 includes at least one, at least one sound absorbing member 32 covers the air inlet 121, and a hollow portion is provided on the sound absorbing member 32. The sound absorbing member 32 covers the air inlet 121, so that the air can flow through the hollow portion of the sound absorbing member 32 before flowing through the power module 12 for heat dissipation. The sound absorbing member 32 can intercept and absorb noise at the air inlet 121, can significantly reduce the generation of noise, and can also effectively absorb the noise generated by the fan 22 and the power module 12. And the hollow portion can also ensure the smoothness of air circulation, ensuring that the air can flow smoothly through the power module 12 so that the charging pile can achieve a good heat dissipation effect.

[0036] Among them, the sound-absorbing member 32 includes sound-absorbing cotton 321. The holes on the sound-absorbing cotton 321 form a hollow portion. The sound-absorbing cotton 321 is porous, and the hollow portion is the holes on the sound-absorbing cotton 321. These tiny holes fill the interior of the sound-absorbing cotton 321, which can effectively absorb sound wave energy and convert sound energy into heat energy or other forms of energy dissipation, thereby significantly reducing the propagation of noise. And the holes as hollow portions can also ensure the smoothness of air circulation inside the charging pile, which is conducive to air flow for heat dissipation. In addition, the sound-absorbing cotton 321 is light in weight and can be cut and processed according to the specific size and shape of the charging pile, which is convenient for installing the sound-absorbing cotton 321 in the charging pile, and also convenient for replacing and disassembling the sound-absorbing cotton 321.

[0037] In one embodiment, the noise reduction component 30 also includes a noise reduction shell 33. The noise reduction shell 33 is buckled on the inner wall of the installation cavity 11, and a positioning hole is provided on the noise reduction shell 33, and the sound absorbing member 32 is installed in the positioning hole. By providing a positioning hole on the noise reduction shell 33, it can be ensured that the sound absorbing member 32 is accurately installed at the predetermined position. Such a setting can not only improve the installation efficiency of the sound-absorbing cotton 321, but also effectively avoid the problem of reduced noise reduction effect caused by improper installation. The noise reduction shell 33 is buckled on the inner wall of the installation cavity 11, so that the noise reduction shell 33 and the sound absorbing member 32 together constitute a noise reduction barrier. The noise reduction shell 33 can block the propagation of part of the noise, refract the noise, and the noise generated after the air refraction is absorbed by the sound absorbing cotton 321. Therefore, the noise reduction shell 33 can reduce the noise directly radiating outward through the side wall of the installation cavity 11, and effectively reduce the noise pollution generated when the charging pile is working. The noise reduction shell 33 and the sound-absorbing cotton 321 can be made according to the specific size and shape of the charging pile, which is beneficial to improving the adaptability and flexibility of the noise reduction component 30. Specifically, the noise reduction shell 33 can be set as a sheet metal structure, which refracts the noise, and the sound-absorbing cotton 321 can absorb the refracted noise to reduce the generation of noise.

[0038] like Figure 5 As shown, in one embodiment, the fan assembly 20 includes a mounting bracket 21 and a fan 22, the mounting bracket 21 covers the air outlet 122, and the mounting bracket 21 includes a plurality of mounting holes. There are multiple fans 22, and the multiple fans 22 are installed in the mounting holes one by one. The rotation of the multiple fans 22 drives the air flow in the mounting cavity 11, so that a negative pressure environment is formed in the mounting cavity 11. The air outside the housing 10 flows into the mounting cavity 11 through the air inlet 121 under the action of pressure. The multiple fans 22 are distributed at different positions on the air outlet 122, which can form a more uniform wind force distribution, ensure that each area inside the charging pile can be fully cooled, avoid local overheating, and ensure that the air takes away the heat generated by the power module 12 from the air outlet. Each fan 22 is independently installed in the mounting hole, which is convenient for assembling and disassembling the fan 22 for maintenance. The mounting bracket 21 enables multiple fans 22 to be closely arranged on the air outlet 122, making full use of the space in the mounting cavity 11 and improving space utilization.

[0039] like Figures 1 to 3As shown, in one embodiment, the installation cavity 11 includes an air inlet duct 111, an air outlet duct 112, and a power supply accommodating cavity 113. The air inlet duct 111 is connected to the air inlet 121, and the noise reduction component 30 is located in the air inlet duct 111. The air outlet duct 112 is connected to the air outlet 122, and the fan component 20 is located in the air outlet duct 112. The power supply accommodating cavity 113 is arranged between the air inlet duct 111 and the air outlet duct 112, and the air inlet duct 111, the power supply accommodating cavity 113 and the air outlet duct 112 are connected in sequence, and the power supply module 12 is installed in the power supply accommodating cavity 113. The air inlet duct 111, the air outlet duct 112 and the power supply chamber 113 are connected in sequence, forming a clear heat dissipation path. After the air enters the air inlet duct 111 from the air inlet 121, it flows through the power module 12 in the power supply chamber 113, taking away the heat generated by the power module 12, and then the air flows into the air outlet duct 112 and flows out of the housing 10 from the outlet. The air inlet duct 111 and the air outlet duct 112 can lengthen the propagation path of the noise, so that the noise generated by the operation of the charging pile can be fully absorbed by the sound-absorbing cotton 321, so that the noise intensity is attenuated during the long-distance diffusion process. In this way, when the noise is transmitted from the air inlet 121 and the air outlet 122, the intensity of the noise has been greatly attenuated, thereby achieving the purpose of effectively reducing noise pollution.

[0040] In one embodiment, along a first direction (eg Figure 1 The direction indicated by the arrow X in the middle is specifically the width direction of the charging pile), the air inlet 121 and the air outlet 122 are respectively located on opposite sides of the installation cavity 11, and the projection of the air inlet 121 along the first square and the projection of the air outlet 122 along the first direction are at least partially offset. The air inlet 121 and the air outlet 122 are respectively located on opposite sides of the installation cavity 11, which lengthens the air flow path and effectively prevents part of the cold air from directly flowing out of the air outlet 122 without passing through the power module 12, further improving the heat dissipation effect of the charging pile. The at least partial offset setting of the projection of the air inlet 121 and the projection of the air outlet 122 can ensure that the cold air flows fully in the installation cavity 11, performs more sufficient heat exchange with the power module 12, and achieves a better heat dissipation effect.

[0041] like Figure 4As shown, in one embodiment, the charging pile further includes a shutter 40, and the shutter 40 is arranged at at least one of the air inlet 121 and the air outlet 122. Specifically, the shutter 40 can be arranged alone on the air outlet 122, or alone on the air inlet 121, or simultaneously arranged at the air inlet 121 and the air outlet 122. The shutter 40 has a protective effect, which can effectively prevent rain, dust and other impurities from entering the installation cavity 11 with the air, protect the electronic components such as the power module 12 in the installation cavity 11 from pollution, and is conducive to extending the service life of the charging pile. And the shutter 40 can adjust the angle and spacing of the shutter 40, which can achieve a good ventilation effect while ensuring the protective performance, and ensure that the heat inside the charging pile can be discharged in time. By adjusting the angle of the shutter 40, the turbulence phenomenon of the air at the air inlet 121 and the air outlet 122 can be reduced, and the noise and vibration generated by the turbulence phenomenon can be effectively reduced.

[0042] In one embodiment, a sound-absorbing layer (not shown in the figure) is provided on the shutter 40. The sound-absorbing layer can effectively absorb and attenuate sound waves, thereby reducing the propagation of noise. When air enters or leaves the charging pile through the shutter 40, the sound-absorbing layer can reduce the noise generated by the friction and vibration between the air and the shutter 40. The sound-absorbing layer can be made of sound-absorbing materials to further improve the noise reduction effect. Specifically, the sound-absorbing material can be selected as sponge, porous foam, fiber material, etc. By providing multiple noise reduction such as a sound-absorbing layer and a noise reduction component 30, the overall noise reduction of the charging pile is achieved, which is conducive to reducing the pollution caused by life noise.

[0043] In one embodiment, the charging pile further includes a filter 50, which is disposed at at least one of the air inlet 121 and the air outlet 122. The filter 50 can further reduce the entry of fine dust into the installation cavity 11, and prevent fine dust and the like from entering the power module 12, causing damage to the power module 12 system. Specifically, the filter 50 can be disposed separately on the air outlet 122. Alternatively, the filter 50 can also be disposed separately on the air inlet 121. Alternatively, the filter 50 can also be disposed at both the air inlet 121 and the air outlet 122.

[0044] The power module 12 is placed on the mounting frame in the power accommodating cavity 113, and there are gaps between the power modules 12 and between the power module 12 and the mounting frame, and the gaps are connected to the air inlet duct 111 and the air outlet duct 112 on opposite sides along the first direction. As a result, the air can pass through the gap and fully contact the power module 12, and the air can take away the heat generated by the power module 12, ensuring that the power module 12 achieves a good heat dissipation and cooling effect. In other words, the air in the air inlet duct 111 can flow from one side of the power module 12 to the other side along the gap, and then the air flowing through the power module 12 is quickly discharged through the fan assembly 20.

[0045] In one embodiment, a muffler may be installed in the installation cavity 11, or a resonance cavity may be provided in the installation cavity 11, so as to absorb noise of a specific frequency and reduce the noise when the charging pile is working.

[0046] Specifically, the air inlet 121 is arranged on the air inlet door plate 60, and the noise reduction shell 33 is mounted on the air door plate 60. The air outlet 122 is arranged on the air outlet door plate 70. The air inlet door plate 60 and the air outlet door plate 70 form the side wall of the installation cavity 11.

[0047] In the present application, the air can be guided to smoothly enter and exit the charging pile through the air inlet 121 on the air inlet door plate 60 and the air outlet 122 on the air outlet door plate, and the heat generated by the power module 12 is also discharged while the air is discharged. Among them, the noise generated in the charging pile is refracted by the noise reduction shell 33 at the air inlet door plate 60. Part of the refracted noise is absorbed by the sound-absorbing cotton 321, and part of the noise generated by the air flow flows with the air and is absorbed by the sound-absorbing layer on the air outlet 122 at the air outlet door plate. During the air flow process, the charging pile achieves an overall noise reduction effect, which is conducive to reducing the pollution caused by life noise.

[0048] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0049] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0050] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A charging pile, characterized in that: include: A housing (10), the housing (10) being provided with an installation cavity (11), the installation cavity (11) being used to accommodate a power module (12), a side wall of the installation cavity (11) being provided with an air inlet (121) and an air outlet (122), the air inlet (121), the installation cavity (11) and the air outlet (122) being connected in sequence; a fan assembly (20), the fan assembly (20) being installed in the installation cavity (11), the fan assembly (20) driving the air outside the housing (10) to flow through the air inlet (121) and the power module (12) and dissipating the heat generated by the power module (12) to the outside of the housing (10) through the air outlet (122); A noise reduction component (30), the noise reduction component (30) is installed in the installation cavity (11) and covers the air inlet (121), and a hollow portion is provided on the noise reduction component (30).

2. The charging pile according to claim 1, characterized in that: The noise reduction assembly (30) includes a sound absorbing member (32), the sound absorbing member (32) includes at least one, at least one of the sound absorbing members (32) covers the air inlet (121), and the hollow portion is provided on the sound absorbing member (32).

3. The charging pile according to claim 2, characterized in that: The sound absorbing member (32) comprises sound absorbing cotton (321), and the holes on the sound absorbing cotton (321) form the hollow portion.

4. The charging pile according to claim 3, characterized in that: The noise reduction component (30) further comprises a noise reduction shell (33), wherein the noise reduction shell (33) is buckled onto the inner wall of the installation cavity (11), and a positioning hole is provided on the noise reduction shell (33), and the sound absorbing component (32) is installed in the positioning hole.

5. The charging pile according to claim 1, characterized in that: The fan assembly (20) comprises a mounting bracket (21) and a fan (22); the mounting bracket (21) covers the air outlet (122); the mounting bracket (21) comprises a plurality of mounting holes; the fans (22) are multiple, and the multiple fans (22) are mounted in the mounting holes in a one-to-one correspondence.

6. The charging pile according to claim 1, characterized in that: The installation cavity (11) comprises: An air inlet duct (111), the air inlet duct (111) being in communication with the air inlet port (121), and the noise reduction component (30) being located in the air inlet duct (111); An air outlet duct (112), the air outlet duct (112) being in communication with the air outlet (122), and the fan assembly (20) being located in the air outlet duct (112); A power supply accommodating chamber (113), wherein the power supply accommodating chamber (113) is arranged between the air inlet duct (111) and the air outlet duct (112), and the air inlet duct (111), the power supply accommodating chamber (113) and the air outlet duct (112) are sequentially connected, and the power supply module (12) is installed in the power supply accommodating chamber (113).

7. The charging pile according to claim 1, characterized in that: Along a first direction, the air inlet (121) and the air outlet (122) are respectively located on opposite sides of the installation cavity (11), and a projection of the air inlet (121) along the first direction and a projection of the air outlet (122) along the first direction are at least partially offset.

8. The charging pile according to claim 1, characterized in that: The charging pile further comprises a shutter (40), wherein the shutter (40) is arranged at at least one of the air inlet (121) and the air outlet (122).

9. The charging pile according to claim 8, characterized in that: The shutter (40) is provided with a sound-absorbing layer.

10. The charging pile according to any one of claims 1 to 9, characterized in that: The charging pile further comprises a filter (50), wherein the filter (50) is arranged at at least one of the air inlet (121) and the air outlet (122).

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