Noise reduction direct current charging pile with multiple independent air ducts

Abstract

The utility model discloses a noise reduction DC charging pile with multiple independent air channels, comprising a cabinet body, an air inlet channel arranged in the right end of the cabinet body, an air outlet channel arranged in the left end of the cabinet body, a separation metal plate arranged in the air outlet channel, the air inlet channel being communicated with an air inlet on the cabinet body, and the air outlet channel being communicated with an air outlet on the cabinet body; a first air outlet hole and a second air outlet hole of the air inlet channel are correspondingly communicated with the first air inlet and the second air inlet, the first air outlet channel and the second air outlet channel are communicated with an air outlet in the cabinet body, and first sound absorption cotton connected with the cabinet body is arranged on the right side of the first air outlet hole and the right side of the second air outlet hole. The air outlet end of the first fan in the first air outlet channel corresponds to the second sound absorption cotton in the first air outlet channel, and the air outlet end of the second fan in the second air outlet channel corresponds to the third sound absorption cotton in the second air outlet channel. By adopting the technical scheme, mutual interference and offset of airflow between adjacent fans are prevented, smooth airflow circulation is ensured, so that the heat dissipation effect is improved, a high temperature phenomenon in the cabinet body is prevented, and noise pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to charging piles, and in particular to a noise-reducing DC charging pile with multiple independent air ducts. Background Art

[0002] A charging pile is a device that provides charging services for electric vehicles and hybrid vehicles. With the rapid development of the new energy vehicle market, charging piles have also become rapidly popular.

[0003] Although DC charging piles can meet the usage requirements, they still have certain shortcomings. For example, there is only one air outlet channel on one side of the cabinet of the existing charging pile. After the multiple fans installed in the cabinet blow air to the air outlet channel, the airflows will interfere with and offset each other in the air outlet channel, resulting in poor airflow, affecting the heat dissipation effect, causing high temperature in the cabinet, and affecting the service life of internal electrical components; in addition, during the charging process, the charging module and the fan of the charging pile make excessive noise, which can easily cause complaints from surrounding residents and user experience. Utility Model Content

[0004] In order to overcome the existing technical defects, the purpose of the utility model is to provide a noise reduction DC charging pile with multiple independent air ducts to solve the above technical problems.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows:

[0006] According to one aspect of the utility model, a noise reduction DC charging pile with multiple independent air ducts is designed, including: a cabinet, an air inlet channel is arranged inside the right end of the cabinet, and an air outlet channel is arranged inside the left end, a partition sheet metal is arranged in the air outlet channel to divide the air outlet channel into a first air outlet channel and a second air outlet channel, the air inlet channel is connected to the air inlet on the cabinet, the first air outlet hole and the second air outlet hole of the air inlet channel are connected to the air inlet 1 of the first air outlet channel and the air inlet 2 of the second air outlet channel correspondingly, and a charging module mounting position for installing a charging module is provided therebetween, the first air outlet channel and the second air outlet channel are connected to the air outlet on the cabinet, a first sound-absorbing cotton connected to the cabinet is arranged on the right side of the first air outlet hole and the right side of the second air outlet hole, the air outlet end of the first fan in the first air outlet channel corresponds to the second sound-absorbing cotton in the first air outlet channel, and the air outlet end of the second fan in the second air outlet channel corresponds to the third sound-absorbing cotton in the second air outlet channel.

[0007] By adopting the above technical scheme, the air outlet channel is divided into a first air outlet channel and a second air outlet channel by arranging a partition sheet metal in the air outlet channel, and fans are respectively arranged in the first air outlet channel and the second air outlet channel, so as to realize a dual independent air outlet structure, prevent the airflows between adjacent fans from interfering with and canceling each other, ensure smooth airflow, thereby improving the heat dissipation effect, preventing high temperature inside the cabinet, and ensuring that the service life of the electrical components inside the cabinet is not affected; in addition, by arranging the first sound-absorbing cotton, the noise generated when the charging module in the cabinet is working can be absorbed, and the second sound-absorbing cotton and the third sound-absorbing cotton can control the gas flow rate in the first air outlet channel and the second air outlet channel and absorb the noise, so as to ensure that the noise outside the charging pile is controlled within 65dB and reduce noise pollution.

[0008] In order to better solve the above technical defects, the utility model also has a better technical solution:

[0009] In some embodiments, the air inlet channel includes a lower air inlet channel and an upper air inlet channel, the width of the lower air inlet channel is greater than the width of the upper air inlet channel, and the width of the lower air inlet channel and the upper air inlet channel at the connection is not less than 130 mm. The width limit is set to reduce the gas flow rate and prevent the air flow sound from being too loud.

[0010] In some embodiments, shutters are installed at both the air inlet and the air outlet, and dustproof cotton is provided inside the shutters of the air inlet.

[0011] In some embodiments, the dust-proof cotton is wavy.

[0012] In some embodiments, the first fan and the second fan are respectively inclined, the partition sheet metal includes a first sheet metal part, a second sheet metal part, a third sheet metal part and a fourth sheet metal part, the first sheet metal part, the third sheet metal part and the fourth sheet metal part are inclined, the second sheet metal part is vertical, the second sound-absorbing cotton is adhered to the fourth sheet metal part, and the third sound-absorbing cotton is adhered to the first sheet metal part.

[0013] In some embodiments, a back plate is installed in the cabinet, and the back plate divides the interior of the cabinet into a component installation cavity and a module air duct cavity. A plurality of ventilation holes are provided at the upper end of the back plate to connect the component installation cavity with the module air duct cavity and correspond to the front and rear of the charging module installation position. The air inlet channel is located at the right end of the module air duct cavity, and the air outlet channel is located at the left end of the module air duct cavity. Thus, by providing ventilation holes, when the airflow circulates to dissipate heat, the hot air in the component installation cavity can be forced to enter the position of the charging module installation position through the ventilation holes and be discharged with the airflow, thereby achieving heat dissipation and cooling of the component installation cavity and preventing the internal temperature from being too high.

[0014] In some embodiments, a fourth sound-absorbing cotton connected to the cabinet is disposed on the left side of the first air inlet, and a fifth sound-absorbing cotton connected to the partition sheet metal is disposed on the left side of the second air inlet, thereby further improving the noise reduction effect of the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the main structure of a noise reduction DC charging pile with multiple independent air ducts according to an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the cross section at the AA position;

[0017] Figure 3 It is a right view structural schematic diagram of a noise reduction DC charging pile with multiple independent air ducts;

[0018] Figure 4 It is a left-view structural schematic diagram of a noise reduction DC charging pile with multiple independent air ducts;

[0019] Figure 5 for Figure 3 A cross-sectional diagram of the middle BB position, where the arrows indicate the direction of airflow;

[0020] Figure 6 This is a schematic diagram of the main view of the cabinet after the cabinet door is removed;

[0021] Reference numerals:

[0022] 1. Cabinet; 10. Back panel; 101. Ventilation hole; 1a. Air inlet; 1b. Air outlet; 11. Component installation cavity; 12. Module air duct cavity; 13. Air inlet channel; 13a. Lower air inlet channel; 13b. Upper air inlet channel; 131. First air outlet; 132. Second air outlet; 14. Air outlet channel; 141. First air outlet channel; 1411. Air inlet one; 142. Second air outlet channel; 1421. Air inlet two; 15. Partition sheet metal; 151. First sheet metal part; 152. Second sheet metal part; 153. Third sheet metal part; 154. Fourth sheet metal part; 16. Charging module installation position; 21. First fan; 22. Second fan; 31. First sound-absorbing cotton; 32. Second sound-absorbing cotton; 33. Third sound-absorbing cotton. DETAILED DESCRIPTION

[0023] 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 combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, and fixing should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] refer to Figures 1 to 6 As shown, the utility model provides a noise reduction DC charging pile with multiple independent air ducts, including: a cabinet 1, a cabinet door hinged on the front side of the cabinet 1, a back panel 10 installed in the cabinet 1, the back panel 10 divides the interior of the cabinet 1 into a component installation cavity 11 and a module air duct cavity 12, the component installation cavity 11 is located on the front side of the module air duct cavity 12, an air inlet channel 13 is arranged inside the right end of the cabinet 1, and an air outlet channel 14 is arranged inside the left end, wherein the air inlet channel 13 is located at the right end of the module air duct cavity 12, and the air outlet channel 14 is located at the left end of the module air duct cavity 12.

[0027] The air inlet channel 13 is connected to the air inlet 1a on the cabinet 1, and the air inlet 1a is located on the right side of the cabinet 1. A shutter is installed at the position of the air inlet 1a. A wavy dust-proof cotton is installed on the inner side of the shutter. The dust-proof cotton is used to absorb dust and prevent dust from entering the cabinet 1. The air inlet channel 13 has a first air outlet hole 131 and a second air outlet hole 132. The air outlet channel 14 is provided with a partition sheet metal 15 that divides the air outlet channel 14 into a first air outlet channel 141 and a second air outlet channel 142. The first air outlet channel 141 has an air inlet 1411, and the second air outlet channel 142 has an air inlet 2 1421. The first air outlet hole 131 of the air inlet channel 13 and the first air outlet channel 141 are connected. The air inlet 1411 is connected, the second air outlet 132 of the air inlet channel 13 is connected with the air inlet 2 1421 of the second air outlet channel 142, a charging module mounting position 16 for installing a charging module is provided between the first air outlet 131 and the air inlet 1411, and a charging module mounting position 16 for installing a charging module is also provided between the second air outlet 132 and the air inlet 2 1421. A plurality of ventilation holes 101 are provided at the upper end of the back plate 10 to connect the component installation cavity 11 with the module air duct cavity 12, and the ventilation holes 101 correspond to the charging module mounting position 16 front to back. The charging module mounting position 16 is used to install a charging module, and the charging module is a conventional DC charging module.

[0028] The air outlet end of the first air outlet channel 141 and the air outlet end of the second air outlet channel 142 are connected to the air outlet 1b on the cabinet 1. Specifically, the air outlet end of the first air outlet channel 141 is connected to the lower half of the air outlet 1b, and the air outlet end of the second air outlet channel 142 is connected to the upper half of the air outlet 1b. The air outlet 1b is located on the left side of the cabinet 1, and a shutter is installed at the air outlet 1b.

[0029] The first sound-absorbing cotton 31 connected to the cabinet 1 is arranged on the right side of the first air outlet 131 and the right side of the second air outlet 132. The first fan 21 and the second sound-absorbing cotton 32 are installed obliquely in the first air outlet channel 141, and the air outlet end of the first fan 21 corresponds to the second sound-absorbing cotton 32. The second fan 22 and the third sound-absorbing cotton 33 are installed obliquely in the second air outlet channel 142, and the air outlet end of the second fan 22 corresponds to the third sound-absorbing cotton 33.

[0030] The air inlet channel 13 includes a lower air inlet channel 13a and an upper air inlet channel 13b, the width of the lower air inlet channel 13a is greater than the width of the upper air inlet channel 13b, and the width L of the lower air inlet channel 13a and the upper air inlet channel 13b at the connection is not less than 130 mm, wherein the width L of the lower air inlet channel 13a and the upper air inlet channel 13b at the connection is 130 mm or 135 mm or 140 mm or 150 mm, etc., and is set as needed.

[0031] The partition sheet metal 15 includes a first sheet metal part 151, a second sheet metal part 152, a third sheet metal part 153 and a fourth sheet metal part 154. The first sheet metal part 151, the third sheet metal part 153 and the fourth sheet metal part 154 are inclined, the second sheet metal part 152 is vertical, the second sound-absorbing cotton 32 is adhered to the fourth sheet metal part 154, and the third sound-absorbing cotton 33 is adhered to the first sheet metal part 151.

[0032] In some embodiments, a fourth sound-absorbing cotton connected to the cabinet 1 is disposed on the left side of the air inlet 1411 , and a fifth sound-absorbing cotton connected to the partition sheet metal 15 is disposed on the left side of the air inlet 2 1421 .

[0033] When the first fan 21 and the second fan 22 are started, the external airflow can be driven to enter the air inlet channel 13 from the air inlet 1a, and then a part of the airflow is output from the first air outlet 131 into the charging module of the charging module mounting position 16. The cooling fan in the charging module assists the airflow to pass through its interior and transport it to the left. Then the airflow enters the first air outlet channel 141 from the air inlet 1 1411, and then passes through the first fan 21 and is output from the air outlet 1b. Another part of the airflow is output from the second air outlet 132, passes through the charging module at the upper charging module mounting position 16, and enters the second air outlet channel 142 from the air inlet 2 1421, and then passes through the second fan 22 and is output from the air outlet 1b, thereby realizing airflow circulation to dissipate heat and cool the charging pile.

[0034] The above are only some embodiments of the present invention. For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A noise reduction DC charging pile with multiple independent air ducts, characterized in that: include: A cabinet body, an air inlet channel is arranged inside the right end of the cabinet body, and an air outlet channel is arranged inside the left end of the cabinet body, a partition sheet metal is arranged inside the air outlet channel to divide the air outlet channel into a first air outlet channel and a second air outlet channel, the air inlet channel is connected with the air inlet on the cabinet body, the first air outlet hole and the second air outlet hole of the air inlet channel are connected with the air inlet 1 of the first air outlet channel and the air inlet 2 of the second air outlet channel correspondingly, and a charging module mounting position for installing a charging module is provided therebetween, the first air outlet channel and the second air outlet channel are connected with the air outlet on the cabinet body, a first sound-absorbing cotton connected to the cabinet body is arranged on the right side of the first air outlet hole and the right side of the second air outlet hole, the air outlet end of the first fan in the first air outlet channel corresponds to the second sound-absorbing cotton therein, and the air outlet end of the second fan in the second air outlet channel corresponds to the third sound-absorbing cotton therein.

2. A noise reduction DC charging pile with multiple independent air ducts according to claim 1, characterized in that: The air inlet channel includes a lower air inlet channel and an upper air inlet channel, the width of the lower air inlet channel is greater than the width of the upper air inlet channel, and the width of the lower air inlet channel and the upper air inlet channel at the connection is not less than 130 mm.

3. A noise reduction DC charging pile with multiple independent air ducts according to claim 1, characterized in that: Shutters are installed at the air inlet and the air outlet, and dustproof cotton is arranged inside the shutters of the air inlet.

4. A noise reduction DC charging pile with multiple independent air ducts according to claim 3, characterized in that: The dustproof cotton is wavy.

5. The noise reduction DC charging pile with multiple independent air ducts according to claim 1, characterized in that: The first fan and the second fan are respectively inclined, the partition sheet metal includes a first sheet metal part, a second sheet metal part, a third sheet metal part and a fourth sheet metal part, the first sheet metal part, the third sheet metal part and the fourth sheet metal part are inclined, the second sheet metal part is vertical, the second sound-absorbing cotton is adhered to the fourth sheet metal part, and the third sound-absorbing cotton is adhered to the first sheet metal part.

6. A noise reduction DC charging pile with multiple independent air ducts according to claim 1, characterized in that: A back panel is installed in the cabinet, and the back panel divides the interior of the cabinet into a component installation cavity and a module air duct cavity. A plurality of ventilation holes are provided on the upper end of the back panel to connect the component installation cavity with the module air duct cavity and correspond to the front and rear of the charging module installation position. The air inlet duct is located at the right end of the module air duct cavity, and the air outlet duct is located at the left end of the module air duct cavity.

7. The noise reduction DC charging pile with multiple independent air ducts according to claim 1, characterized in that: A fourth sound-absorbing cotton connected to the cabinet is arranged on the left side of the first air inlet, and a fifth sound-absorbing cotton connected to the partition sheet metal is arranged on the left side of the second air inlet.

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