Heat dissipation and noise reduction device and power supply equipment

Abstract

The utility model provides a heat dissipation and noise reduction device, which comprises an air guide shell, a heat dissipation and noise reduction device, a heat dissipation and noise reduction device, a heat dissipation and noise reduction device and a heat dissipation and noise reduction device, and is characterized in that the air guide shell is provided with an air inlet and an air outlet communicated with the air inlet; the cooling fan is arranged at the air inlet and used for establishing airflow output from the internal space to the air outlet; the first partition plate, the second partition plate and the third partition plate are sequentially arranged in the air guide shell at intervals in the direction from the air inlet to the air outlet, a sealed space is defined by the first partition plate, the second partition plate and the air guide shell, and a first silencing space communicated with the air outlet is defined by the second partition plate, the third partition plate and the air guide shell; the first air duct at least penetrates through the second partition plate and the third partition plate, an inlet of the first air duct is connected with the opening in the first partition plate to be communicated with the air inlet, and a plurality of air outlets are formed in the portion, located in the first silencing space, of the first air duct. The utility model also provides a power supply device. According to the scheme of the utility model, effective heat dissipation and effective noise reduction can be carried out on the equipment to be subjected to heat dissipation and noise reduction.

Description

Technical Field

[0001] The utility model belongs to the technical field of noise reduction, and in particular relates to a heat dissipation and noise reduction device and power supply equipment. Background Art

[0002] A charging pile refers to a charging device that provides energy for electric vehicles. Its function is similar to that of a gas pump in a gas station. It can be fixed on the ground or on the wall and installed in public buildings (such as public buildings, shopping malls, and public parking lots) and residential parking lots or charging stations. It can charge various models of electric vehicles according to different voltage levels.

[0003] Charging piles often need to charge and discharge for a long time when working, which can easily cause the temperature to rise too high. It will not only affect the normal operation of the charging pile, but also pose certain safety hazards. Therefore, the heat dissipation capacity of the charging pile is particularly important.

[0004] At present, the heat is dissipated by installing a cooling fan on the charging pile, but there is a lot of noise pollution when the cooling fan is working, so a large amount of sound insulation cotton needs to be attached to the charging pile to reduce the noise. However, the installation of sound insulation cotton will increase the volume of the charging pile and increase the manufacturing cost. Even a soundproof shed is specially built for the charging pile to achieve the purpose of sound insulation and noise reduction, which greatly increases the equipment cost. Utility Model Content

[0005] The embodiment of the utility model provides a heat dissipation and noise reduction device, which aims to solve the technical problem of increased equipment cost caused by the charging pile in the prior art that the noise of the cooling fan on the charging pile is reduced by setting sound insulation cotton or even building a special sound insulation shed.

[0006] The heat dissipation and noise reduction device of the embodiment of the utility model comprises:

[0007] An air guide housing, wherein the air guide housing is provided with an air inlet and an air outlet connected to the air inlet, and the air inlet is connected to the internal space of the device to be cooled and denoised;

[0008] a heat dissipation fan, the heat dissipation fan being arranged at the air inlet and being used to establish an airflow output from the internal space to the air outlet;

[0009] a first partition, a second partition, and a third partition are sequentially arranged in the air guide housing from the air inlet to the air outlet, the first partition, the second partition, and the air guide housing enclose a sealed space, the second partition, the third partition, and the air guide housing enclose a first silencing space, and the first silencing space is communicated with the air outlet; and

[0010] At least a first air duct is provided through the second partition plate and the third partition plate, the inlet of the first air duct is connected to the opening on the first partition plate to communicate with the air inlet, and a portion of the first air duct located in the first silencing space is provided with a plurality of air outlets.

[0011] Furthermore, the heat dissipation and noise reduction device also includes a fourth partition plate which is spaced apart from the third partition plate on a side away from the second partition plate, the outlet of the first air duct is connected to the opening on the fourth partition plate, the third partition plate, the fourth partition plate and the air guide shell form a second soundproofing space, and the part of the first air duct located in the second soundproofing space is provided with a plurality of air outlet holes.

[0012] Furthermore, the heat dissipation and noise reduction device further includes:

[0013] a fifth partition plate spaced apart from the fourth partition plate and disposed on a side away from the third partition plate, wherein the fourth partition plate, the fifth partition plate and the air guide housing enclose a third sound-absorbing space; and

[0014] At least a second air duct is provided passing through the fourth partition, the inlet of the second air duct is connected with the first opening on the third partition to communicate with the first sound-absorbing space, the outlet of the second air duct is connected with the opening on the fifth partition to communicate with the air outlet, and the parts of the second air duct located in the second sound-absorbing space and the third sound-absorbing space are provided with a plurality of air outlet holes.

[0015] Furthermore, the heat dissipation and noise reduction device also includes a third air duct arranged between the third partition plate and the fourth partition plate, the inlet of the third air duct is connected to the second opening on the third partition plate to communicate with the first sound-absorbing space, the outlet of the third air duct is connected to the opening on the fourth partition plate to communicate with the third sound-absorbing space, and the third air duct is provided with a plurality of air outlet holes.

[0016] Furthermore, the thickness of the second separator, the third separator and the fourth separator is greater than the thickness of the first separator and the fifth separator.

[0017] Furthermore, the plurality of air outlet holes on the first air tube, the second air tube and the third air tube are evenly arranged.

[0018] Furthermore, the spacing distance between the third partition plate and the fourth partition plate is greater than the spacing distance between the first partition plate and the second partition plate, the spacing distance between the second partition plate and the third partition plate, and the spacing distance between the fourth partition plate and the fifth partition plate.

[0019] Furthermore, in the width direction of the air guide housing, the first air tube is located between the second air tube and the third air tube.

[0020] Furthermore, from the end where the air inlet is located to the end where the air outlet is located, a first buffer space, an installation space and a second buffer space are sequentially formed in the air guide housing;

[0021] The cooling fan is located in the first buffer space, the inlet of the first air duct is connected to the first buffer space, the first partition to the fifth partition and the first air duct to the third air duct are all arranged in the installation space, and the outlet of the second air duct and the air outlet are both connected to the second buffer space.

[0022] The present invention also provides a power supply device, including:

[0023] The device body; and

[0024] According to any of the above-mentioned heat dissipation and noise reduction devices, the heat dissipation and noise reduction device is installed on at least one side of the device body, and the heat dissipation fan is used to establish an airflow output from the internal space of the device body to the air outlet.

[0025] In the heat dissipation and noise reduction device of the utility model, the heat dissipation fan can effectively dissipate the heat of the equipment to be heat-dissipated and noise-reduced, the first partition plate and the second partition plate form a closed sealed space, the vibration generated by the operation of the heat dissipation fan will produce strong vibration waves with the air in the sealed space, the second partition plate and the third partition plate form a relatively closed first silencing space, the vibration wave collides and reflects with the second partition plate and the third partition plate respectively in the first silencing space, and finally the peaks and valleys of the vibration wave (sound wave) offset each other, so that the noise is reduced, and the air outlet hole on the first air duct is to allow the air noise in the first air duct to spread to the first silencing space, so as to achieve the purpose of effective silencing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the heat dissipation and noise reduction device of an embodiment of the utility model;

[0027] Figure 2 It is a three-dimensional exploded schematic diagram of the heat dissipation and noise reduction device of an embodiment of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the heat dissipation and noise reduction device of an embodiment of the utility model;

[0029] Figure 4 This is another structural schematic diagram of the heat dissipation and noise reduction device of an embodiment of the utility model;

[0030] Figure 5 It is a three-dimensional schematic diagram of a power supply device according to an embodiment of the utility model.

[0031] Description of main component symbols:

[0032] Air guide housing-10; air guide cover-101; cover plate-102; air inlet-11; air outlet-12; cooling fan-13; first partition-14; second partition-15; third partition-16; first air duct-17; air outlet-18; fourth partition-19; fifth partition-20; second air duct-21; third air duct-22; heat dissipation and noise reduction device-100; equipment body-200; power supply equipment-1000. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0034] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated in the description of the direction and positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0037] See also Figures 1 to 5 The heat dissipation and noise reduction device 100 of the embodiment of the utility model comprises:

[0038] An air guide housing 10, wherein the air guide housing 10 is provided with an air inlet 11 and an air outlet 12 connected to the air inlet 11, and the air inlet 11 is connected to the internal space of the device to be cooled and denoised;

[0039] A cooling fan 13 is provided at the air inlet 11 and is used to establish an air flow output from the internal space to the air outlet 12;

[0040] A first baffle 14, a second baffle 15 and a third baffle 16 are sequentially arranged in the air guide housing 10 from the air inlet 11 to the air outlet 12, the first baffle 14, the second baffle 15 and the air guide housing 10 enclose a sealed space, the second baffle 15, the third baffle 16 and the air guide housing 10 enclose a first silencing space, and the first silencing space is communicated with the air outlet 12; and

[0041] At least a first air duct 17 is provided through the second partition 15 and the third partition 16, the inlet of the first air duct 17 is connected to the opening on the first partition 14 to communicate with the air inlet 11, and a portion of the first air duct 17 located in the first silencing space is provided with a plurality of air outlets 18.

[0042] In the heat dissipation and noise reduction device 100 of the embodiment of the utility model, the heat dissipation fan 13 can effectively dissipate the heat of the heat dissipation and noise reduction equipment, the first partition 14 and the second partition 15 form a closed sealed space, the vibration generated by the operation of the heat dissipation fan 13 will produce strong vibration waves with the air in the sealed space, the second partition 15 and the third partition 16 form a relatively closed first silencing space, the vibration wave collides and reflects with the second partition 15 and the third partition 16 respectively in the first silencing space, and finally the peaks and valleys of the vibration wave (i.e., sound wave) offset each other, so that the noise is reduced, and the air outlet 18 opened on the first air duct 17 is to allow the air noise in the first air duct 17 to spread to the first silencing space, so as to achieve the purpose of effective silencing.

[0043] The heat dissipation and noise reduction device 100 of this embodiment can be arranged on a device to be heat dissipated and noise reduced that needs heat dissipation and noise reduction, such as a charging pile, a power exchange cabinet and other equipment, and the heat dissipation fan 13 can be electrically connected to the power supply of the equipment to ensure power supply. For example, the air guide housing 10 can be arranged on the box, cabinet or door of the equipment, etc., with the air outlet 12 facing the side outside the equipment and the air inlet 11 facing the side inside the equipment, so that air exchange between the inside and outside of the equipment can be achieved for effective heat dissipation and cooling, and effective noise reduction and silencing to avoid noise pollution.

[0044] More specifically, the air guide shell 10 is roughly rectangular in shape and can be regarded as a "door body", which may specifically include a cover-shaped air guide cover 101 and a cover plate 102 covering the air guide cover 101. The air guide cover 101 is a structure with a certain gas buffer space, the air inlet 11 is opened on the air guide cover 101, and the air outlet 12 is opened on the cover plate 102. In this way, the airflow generated by the cooling fan 13 does not flow directly to the air outlet 12 through the inlet of the first air duct 17, but can first stay in the gas buffer space for a short time and then flow away through the first air duct 17, so as to avoid the problem that the inlet size of the first air duct 17 is limited, and the airflow cannot be quickly transmitted away, resulting in airflow accumulation and poor noise reduction and silencing effects.

[0045] The first baffle 14, the second baffle 15 and the third baffle 16 are arranged in sequence, arranged vertically with the air guide housing 10 and spaced a certain distance from the air guide housing 10, respectively forming a regular sealed space with a certain volume and a first silencing space, so as to provide vibration reflection and sound wave offset caused by the cooling fan 13, thereby achieving noise reduction and silencing. It can be understood that when the cooling fan 13 is running, the generated airflow flows into the first air duct 17, flows into the first silencing space from the air outlet 18, and the first silencing space is filled with airflow and becomes relatively closed, thereby achieving noise reduction and silencing.

[0046] In addition, openings are provided on the first partition 14, the second partition 15 and the third partition 16, and the first air duct 17 passes through the respective openings to pass through the first partition 14, the second partition 15 and the third partition 16, wherein the inlet end of the first air duct 17 can pass through the first partition 14 entirely and be exposed at the first partition 14, at which time the inlet end of the first air duct 17 directly receives the airflow generated by the cooling fan 13, or the inlet end of the first air duct 17 only partially contacts the first partition 14 and is connected to the opening, at which time the airflow generated by the cooling fan 13 flows into the first air duct 17 through the opening.

[0047] See also Figures 2 to 4 Furthermore, the heat dissipation and noise reduction device 100 also includes a fourth partition 19 which is spaced apart from the third partition 16 on the side away from the second partition 15, the outlet of the first air duct 17 is connected to the opening on the fourth partition 19, the third partition 16, the fourth partition 19 and the air guide shell 10 form a second silencer space, and the part of the first air duct 17 located in the second silencer space is provided with a plurality of air outlet holes 18.

[0048] On the basis of setting the first partition 14, the second partition 15 and the third partition 16, the present embodiment further sets a fourth partition 19 spaced apart from the third partition 16 on one side thereof to form another relatively closed second sound-absorbing space. When the shock wave is weakened once after colliding / reflecting with the second partition 15 and the third partition 16, when it is transmitted backward, it will collide / reflect with the third partition 16 and the fourth partition 19 again and be weakened once more.

[0049] Moreover, the first air duct 17 passes through the second sound-absorbing space and is connected to the opening on the fourth partition 19. In this way, the airflow (air noise) can be spread into the second sound-absorbing space through the multiple air outlets 18 on the first air duct 17 for noise reduction and silencing, and the airflow can be guided to the fourth partition 19 through the outlet end of the first air duct 17 to continue noise reduction and silencing, thereby improving the noise reduction and silencing effect.

[0050] Please continue reading Figures 2 to 4 Furthermore, the heat dissipation and noise reduction device 100 further includes: a fifth partition plate 20 disposed at intervals on the side of the fourth partition plate 19 away from the third partition plate 16, and a second air duct 21 penetrating at least the fourth partition plate 19. The fourth partition plate 19, the fifth partition plate 20 and the air guide housing 10 form a third silencing space. The inlet of the second air duct 21 is connected to the first opening on the third partition plate 16 to communicate with the first silencing space, and the outlet of the second air duct 21 is connected to the opening on the fifth partition plate 20 to communicate with the air outlet 12. The second air duct 21 is provided with a plurality of air outlet holes 18 at the portions located in the second silencing space and the third silencing space.

[0051] On the basis of setting the first to fourth partitions 14, 19, this embodiment further sets a fifth partition 20 spaced apart from the fourth partition 19 on one side thereof to form another relatively closed third silencer space. When the shock wave that is weakened once after colliding / reflecting with the third and fourth partitions 16, 19 is transmitted backward, it will collide / reflect with the fourth and fifth partitions 19, 20 again and be weakened once, that is, the air noise generated by the cooling fan 13 will be weakened through four spaces.

[0052] Furthermore, on the basis of the first air duct 17, a second air duct 21 adjacent to the first air duct 17 is provided, so that the airflow transmitted to the first silencing space by the air outlet 18 on the first air duct 17 can also continue to be dispersed and transmitted backward through the second air duct 21, such as being transmitted to the second silencing space and the third silencing space through the air outlet 18 on the second air duct 21, and being transmitted to the fifth partition 20 through the outlet of the second air duct 21 and then discharged from the air outlet 12. Through multiple and multi-level airflow transmission and dispersion, the airflow continuously collides and reflects, so that the troughs of the sound waves offset each other, thereby achieving effective noise reduction and silencing.

[0053] Please continue reading Figures 2 to 4Furthermore, the heat dissipation and noise reduction device 100 also includes a third air duct 22 arranged between the third partition plate 16 and the fourth partition plate 19, the inlet of the third air duct 22 is connected to the second opening on the third partition plate 16 to communicate with the first silencing space, the outlet of the third air duct 22 is connected to the opening on the fourth partition plate 19 to communicate with the third silencing space, and the third air duct 22 is provided with a plurality of air outlet holes 18.

[0054] On the basis of setting the first wind tube 17 and the second wind tube 21, a third wind tube 22 adjacent to the two is also set, so that the airflow transmitted to the first sound-absorbing space by the air outlet 18 on the first wind tube 17 can also continue to be dispersed and transmitted backward through the third wind tube 22, such as being transmitted to the second sound-absorbing space through the air outlet 18 on the third wind tube 22, and being transmitted to the third sound-absorbing space through the outlet of the third wind tube 22. Through multiple and multi-level airflow transmission and dispersion, the airflow continuously collides and reflects, and the troughs of the sound waves are offset, thereby achieving effective noise reduction and silencing.

[0055] The heat dissipation and noise reduction device 100 of this embodiment can be regarded as an air duct system, which can be installed and fixed on the door panel of the device to achieve the function of heat dissipation and noise reduction. Specifically:

[0056] 1. The cooling fan 13 is the power element of the air duct system, which accelerates the transfer of heat in the equipment to the outside. At the same time, the cooling fan 13 will generate noise, which is reduced by the combination of parts in the air duct system;

[0057] 2. The first partition plate 14 and the second partition plate 15 form a closed cavity (i.e., a sealed space), where the vibration of the cooling fan 13 and the air in the cavity generate strong vibration waves;

[0058] 3. The second baffle 15 and the third baffle 16 form a closed cavity (i.e., the first silencing space) again, and the second baffle 15 and the third baffle 16 are both relatively thick. The shock wave collides and reflects with the second baffle 15 and the third baffle 16 in the cavity, and finally the peaks and valleys of the sound waves offset each other, and the noise is reduced once;

[0059] 4. The closed cavity (i.e., the second silencing space) formed by the third baffle 16 and the fourth baffle 19 further reduces the noise as described above;

[0060] 5. The natural frequency of the air in the cavity (i.e., the third silencing space) formed by the fourth baffle 19 and the fifth baffle 20 matches the frequency of the air after the noise reduction, thereby finally reducing the noise of the cooling fan 13;

[0061] 6. The air outlets 18 provided on the first to third air ducts 17 to 22 allow the air noise in the air ducts to be dispersed to the above-mentioned chambers through the air outlets 18, so as to achieve the purpose of effective noise reduction.

[0062] In other embodiments, the heat dissipation and noise reduction device 100 may also be provided with more partitions and / or air ducts based on actual noise reduction requirements, and is not limited to the first to fifth partitions 14 to 20 and the first to third air ducts 17 to 22 described above.

[0063] In this embodiment, the air guide shell 10, the first partition 14 to the third partition 16, and the first air duct 17 to the third air duct 22 can all be made of metal, such as stainless steel, aluminum, alloy, etc., which not only have better strength to ensure the service life and the protection effect of the internal structure of the electrical equipment, but also have better heat absorption and heat dissipation capabilities, and can absorb the heat in the airflow to help dissipate heat.

[0064] In this embodiment, the first to fifth baffles 14 to 20 can be fixed to the air guide housing 10 by screwing, riveting or welding. Alternatively, in another embodiment, the first to fifth baffles 14 to 20 are integrally formed with the air guide housing 10, which can simplify the manufacturing steps, improve the structural integrity of the heat dissipation and noise reduction device 100, and extend the service life.

[0065] In this embodiment, the first to third air ducts 17 to 22 can be fixed to the first to fifth partitions 14 to 20 by interference fit or threaded fit, which can ensure the stability of the first to third air ducts 17 to 22 on the first to fifth partitions 14 to 20 and has a simple installation method, which is convenient for disassembly and assembly.

[0066] Furthermore, the thickness of the second separator 15 , the third separator 16 and the fourth separator 19 is greater than the thickness of the first separator 14 and the fifth separator 20 .

[0067] Specifically, in this embodiment, the first partition 14 and the fifth partition 20 are relatively thin plates, and the second partition 15, the third partition 16 and the fourth partition 19 are relatively thick plates. When the cooling fan 13 is running and generates air noise, the air noise first collides with the first partition 14. In order to allow the air noise to pass through the first partition 14 more easily and avoid being reflected by the first partition 14 back to the space where the cooling fan 13 is located, the first partition 14 is designed to be a thin plate to reduce the reflection of the air noise.

[0068] In order to allow the air noise to rebound and collide multiple times between the first partition 14 and the second partition 15 (i.e. in the sealed space), between the second partition 15 and the third partition 16 (i.e. in the first silencing space), between the third partition 16 and the fourth partition 19 (i.e. in the second silencing space), and between the fourth partition 19 and the fifth partition 20 (i.e. in the third silencing space) to increase the consumption of air noise and achieve effective silencing, the second partition 15, the third partition 16 and the fourth partition 19 are designed to be thick plates to ensure the reflection of air noise. When the air noise has been hit and reflected multiple times in the first few spaces, it has been largely weakened, so the fifth partition 20 can be thinner to save material costs.

[0069] More preferably, the first partition 14 and the fifth partition 20 have the same thickness, and the second partition 15, the third partition 16 and the fourth partition 19 have the same thickness, which is convenient for the production and subsequent assembly of each accessory. In addition, the thickness of the second partition 15 / the third partition 16 / the fourth partition 19 is at least twice the thickness of the first partition 14 / the fifth partition 20.

[0070] See also Figure 2 and Figure 3 Furthermore, the spacing distance between the third partition 16 and the fourth partition 19 is greater than the spacing distance between the first partition 14 and the second partition 15, the spacing distance between the second partition 15 and the third partition 16, and the spacing distance between the fourth partition 19 and the fifth partition 20.

[0071] Specifically, since the first air duct 17, the second air duct 21 and the third air duct 22 are all connected to the third partition 16 and the fourth partition 19, and a relatively large number of air outlet holes 18 are distributed between the third partition 16 and the fourth partition 19, the space between the third partition 16 and the fourth partition 19 is the main space for sound insulation and noise reduction, that is, the second sound insulation space is the main space for sound insulation and noise reduction. Therefore, the volume of the second sound insulation space is designed to be larger than the volume of the sealed space, the first sound insulation space and the third sound insulation space, and then the spacing distance between the third partition 16 and the fourth partition 19 is designed to be larger than the spacing distance between other adjacent partitions.

[0072] Please continue reading Figure 2 and Figure 3 Furthermore, in the width direction of the air guide housing 10, the first air tube 17 is located between the second air tube 21 and the third air tube 22, and the first air tube 17 is located in a relatively middle position, so that it is easier to receive the airflow generated by the cooling fan 13.

[0073] In this embodiment, the plurality of air outlets 18 on the first air duct 17, the second air duct 21 and the third air duct 22 are evenly arranged, so that the airflow is evenly spread in the first silencing space, the second silencing space and the third silencing space, which is more conducive to silencing and noise reduction.

[0074] It should be noted that the uniform distribution of the multiple air outlet holes 18 on the first air duct 17 should be understood as the multiple air outlet holes 18 on the partial structure of the first air duct 17 provided with the multiple air outlet holes 18 are uniformly distributed, rather than the multiple air outlet holes 18 being uniformly distributed on the entire first air duct 17, that is, the multiple air outlet holes 18 on the portion of the first air duct 17 located between the second partition 15 and the fourth partition 19 are uniformly distributed.

[0075] Furthermore, from the end where the air inlet 11 is located to the end where the air outlet 12 is located, a first buffer space, an installation space and a second buffer space are sequentially formed in the air guide shell 10. All three are roughly regular rectangular spaces, evenly dividing the internal space of the air guide shell 10.

[0076] Among them, the cooling fan 13 is located in the first buffer space, and the inlet of the first air duct 17 is connected to the first buffer space. The first buffer space is used to buffer the airflow output from the equipment by the cooling fan 13 and the airflow generated by the cooling fan 13 itself, so that the airflow is output backward from the first air duct 17 after a certain buffering. The first partition 14 to the fifth partition 20 and the first air duct 17 to the third air duct 22 are all arranged in the installation space. The first partition 14 separates the installation space and the first buffer space, and the fifth partition 20 separates the installation space and the second buffer space. The outlet of the second air duct 21 and the air outlet 12 are both connected to the second buffer space. The air outlet 12 is composed of a plurality of small openings that are densely distributed, and it corresponds to the second buffer space with a relatively large coverage area, so that the output of the airflow is more uniform and smooth.

[0077] See also Figures 1 to 5 The power supply device 1000 of the embodiment of the utility model includes:

[0078] A device body 200, wherein the device body 200 is provided with an air inlet and an air outlet connected to the air inlet; and

[0079] According to any of the above-mentioned heat dissipation and noise reduction devices 100, the heat dissipation and noise reduction device 100 is installed at at least one of the air inlet and the air outlet, and the heat dissipation fan 13 is used to establish an airflow flowing into the interior of the device body 200 through the air inlet or an airflow flowing to the air inlet 11 through the air outlet.

[0080] Since the power supply device 1000 provided by the present invention includes any one of the above-mentioned heat dissipation and noise reduction devices 100, the beneficial effects of the above-mentioned heat dissipation and noise reduction devices 100 are all included in the power supply device 1000 of the embodiment of the present invention, and will not be elaborated here.

[0081] In this embodiment, the power supply device 1000 can be a charging pile, which has the basic functions of a conventional charging pile in the field. The power supply components include common electronic devices in charging piles such as current conversion devices and controllers, which are not described in detail here.

[0082] The heat dissipation and noise reduction device 100 is provided as a door body on the equipment body 200 in an openable and closable manner, that is, the equipment body 200 can be opened or closed by operating the heat dissipation and noise reduction device 100, so that the staff can open the heat dissipation and noise reduction device 100 to maintain the power supply components inside the charging pile, and at the same time, air can also be effectively input into the charging pile for effective heat dissipation and cooling.

[0083] In one embodiment, a rotating shaft or a hinge or other structure may be provided on the side of the heat dissipation and noise reduction device 100 (i.e., the air guide housing 10), with one end of the rotating shaft passing through the heat dissipation and noise reduction device 100 and the other end passing through the device body 200, or a part of the hinge is provided on the heat dissipation and noise reduction device 100 and the other part is provided on the device body 200. In this way, the heat dissipation and noise reduction device 100 can be rotated relative to the device body 200 to realize the opening and closing setting, which is easier to operate.

[0084] The above description of the heat dissipation and noise reduction device 100 is only exemplary. In other embodiments, the heat dissipation and noise reduction device 100 can also be opened and closed on the device body 200 in other ways, and can be set according to actual needs.

[0085] In the description of this specification, the description with reference to the terms "Example 1", "Example 2", etc. means that the specific features, structures, materials or characteristics described in conjunction with the implementation or example are included in at least one implementation or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more implementations or examples in a suitable manner.

[0086] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation and noise reduction device, characterized in that: include: An air guide housing, wherein the air guide housing is provided with an air inlet and an air outlet connected to the air inlet, and the air inlet is connected to the internal space of the device to be cooled and denoised; a heat dissipation fan, the heat dissipation fan being arranged at the air inlet and being used to establish an airflow output from the internal space to the air outlet; A first partition, a second partition and a third partition are sequentially arranged in the air guide housing from the air inlet to the air outlet, the first partition, the second partition and the air guide housing enclose a sealed space, the second partition, the third partition and the air guide housing enclose a first silencing space, and the first silencing space is communicated with the air outlet; as well as At least a first air duct is provided through the second partition plate and the third partition plate, the inlet of the first air duct is connected to the opening on the first partition plate to communicate with the air inlet, and a portion of the first air duct located in the first silencing space is provided with a plurality of air outlets.

2. The heat dissipation and noise reduction device according to claim 1, characterized in that: The heat dissipation and noise reduction device also includes a fourth partition plate which is spaced apart from the third partition plate on a side away from the second partition plate, the outlet of the first air duct is connected to the opening on the fourth partition plate, the third partition plate, the fourth partition plate and the air guide shell form a second sound-absorbing space, and a portion of the first air duct located in the second sound-absorbing space is provided with a plurality of air outlet holes.

3. The heat dissipation and noise reduction device according to claim 2, characterized in that: The heat dissipation and noise reduction device also includes: a fifth partition plate spaced apart from the fourth partition plate and disposed on a side away from the third partition plate, wherein the fourth partition plate, the fifth partition plate and the air guide housing enclose a third sound-absorbing space; and At least a second air duct is provided passing through the fourth partition, the inlet of the second air duct is connected with the first opening on the third partition to communicate with the first sound-absorbing space, the outlet of the second air duct is connected with the opening on the fifth partition to communicate with the air outlet, and the parts of the second air duct located in the second sound-absorbing space and the third sound-absorbing space are provided with a plurality of air outlet holes.

4. The heat dissipation and noise reduction device according to claim 3, characterized in that: The heat dissipation and noise reduction device also includes a third air duct arranged between the third partition plate and the fourth partition plate, the inlet of the third air duct is connected to the second opening on the third partition plate to communicate with the first sound-absorbing space, the outlet of the third air duct is connected to the opening on the fourth partition plate to communicate with the third sound-absorbing space, and the third air duct is provided with a plurality of air outlet holes.

5. The heat dissipation and noise reduction device according to claim 3, characterized in that: The thickness of the second separator, the third separator and the fourth separator is greater than the thickness of the first separator and the fifth separator.

6. The heat dissipation and noise reduction device according to claim 4, characterized in that: The plurality of air outlet holes on the first air tube, the second air tube and the third air tube are evenly arranged.

7. The heat dissipation and noise reduction device according to claim 3, characterized in that: The spacing distance between the third partition plate and the fourth partition plate is greater than the spacing distance between the first partition plate and the second partition plate, the spacing distance between the second partition plate and the third partition plate, and the spacing distance between the fourth partition plate and the fifth partition plate.

8. The heat dissipation and noise reduction device according to claim 4, characterized in that: In the width direction of the air guide housing, the first air tube is located between the second air tube and the third air tube.

9. The heat dissipation and noise reduction device according to claim 4, characterized in that: From the end where the air inlet is located to the end where the air outlet is located, a first buffer space, an installation space and a second buffer space are sequentially formed in the air guide housing; The cooling fan is located in the first buffer space, the inlet of the first air duct is connected to the first buffer space, the first partition to the fifth partition and the first air duct to the third air duct are all arranged in the installation space, and the outlet of the second air duct and the air outlet are both connected to the second buffer space.

10. A power supply device, characterized in that: include: Equipment body; as well as According to the heat dissipation and noise reduction device according to any one of claims 1 to 9, the heat dissipation and noise reduction device is installed on at least one side of the device body, and the heat dissipation fan is used to establish an airflow output from the internal space of the device body to the air outlet.

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