Noise reduction direct current charging pile
By installing air duct isolation plates and hot/cold zone isolation plates inside the charging pile, and utilizing multiple airflow reflections and hot/cold zone isolation design, the noise and heat dissipation problems of the charging pile are solved, achieving more efficient heat dissipation and noise reduction effects.
Patent Information
- Application Number
- CN202520275138.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In existing technologies, there is a noise problem caused by the cooling fan of the charging module.
The charging pile is divided into three chambers by two air duct isolation plates. The airflow is reflected multiple times to reduce noise. Combined with hot and cold zone isolation plates and exhaust components, the heat dissipation effect is improved.
This achieves effective heat dissipation and noise reduction for the charging module, while also reducing the types of structural components and costs.
Smart Images
Figure CN223686385U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of charging piles, in particular to a noise reduction direct current charging pile. BACKGROUND
[0002] The charging pile is a charging device for providing direct current power for the battery of an electric vehicle. When the charging pile is charging, the heat dissipation fan arranged on the charging module can dissipate heat for the charging module.
[0003] Since the charging pile has large power, the heat generated by the charging module during operation is large, and therefore the power and rotating speed of the heat dissipation fan are also high. Although the heat dissipation effect is good, the noise is easily transmitted from the air inlet of the charging pile, which affects the surrounding environment. CONTENT OF THE UTILITY MODEL
[0004] The main purpose of the present application is to provide a noise reduction direct current charging pile, and the problem to be solved.
[0005] To achieve the above-mentioned purpose, the present application provides a noise reduction direct current charging pile. The charging pile comprises a cabinet body and two air duct isolation plates. The cabinet body has a first side plate and a third side plate arranged opposite to each other in a first direction, and a second side plate and a fourth side plate arranged opposite to each other in a second direction. The first side plate and the third side plate are both provided with air inlets. The second side plate is provided with an air outlet. The second direction intersects the first direction. The two air duct isolation plates are arranged in the cabinet body in the first direction. The two air duct isolation plates divide the cabinet body into three cavities arranged in the first direction. In the first direction, the air outlet is located between the two air duct isolation plates. The air duct isolation plate and the fourth side plate have a gap therebetween. The three cavities are in communication with each other through the gap between the air duct isolation plate and the fourth side plate.
[0006] Optionally, the air inlets and the air duct isolation plates are opposite to each other in the first direction. In the second direction, the gap between the air duct isolation plates and the fourth side plate and the air inlets form a misalignment.
[0007] Optionally, the noise reduction direct current charging pile further comprises a module group. The module group comprises a plurality of charging modules. The plurality of charging modules are arranged in layers between the two air duct isolation plates in a third direction. The third direction intersects the first direction and the second direction. The heat dissipation fan on the charging module is located on the side of the charging module away from the second side plate. The air vent on the charging module is located on the side of the charging module close to the second side plate. The module group and the second side plate have a gap therebetween.
[0008] Optionally, the cabinet body further has a bottom plate and a top plate oppositely arranged in the third direction, and the module group has a gap with the bottom plate and the top plate.
[0009] Optionally, the noise reduction direct current charging pile further comprises a cold-hot area isolation plate connected between the two air duct isolation plates and separating the corresponding chamber into a first chamber and a second chamber arranged in the second direction in sequence, the second chamber being in communication with the air outlet; wherein the module group is located on the side of the cold-hot area isolation plate away from the second side plate, and the air vent is in communication with the second chamber.
[0010] Optionally, the air duct isolation plate is provided with a plurality of through holes penetrating through both sides thereof; wherein in the third direction, each of the through holes is located between the module group and the top plate.
[0011] Optionally, the first direction and the second direction form a first plane, the first projection of the air duct isolation plate on the first plane is a first projection, and the first projection has at least one bending part.
[0012] Optionally, the side of the two air duct isolation plates close to each other is provided with a plurality of support pieces extending along the second direction, and a plurality of the support pieces are arranged in the third direction, the third direction intersecting the first direction and the second direction; wherein the support pieces on the two air duct isolation plates correspond to each other and are opposite in the first direction.
[0013] Optionally, the first side plate, the second side plate and the third side plate each have a cabinet door; the air inlet and the air outlet are arranged on the corresponding cabinet door.
[0014] Optionally, the side of the second side plate facing the fourth side plate is provided with an exhaust assembly connected with the air outlet; the exhaust assembly comprises a fan cover and an exhaust fan, the fan cover and the second side plate form an air outlet flow channel, one end of the air outlet flow channel corresponds to the air outlet, and the other end is located on the side of the air outlet close to the top plate; the exhaust fan is connected with the fan cover and located at the end of the air outlet flow channel away from the air outlet.
[0015] This application proposes a noise-reducing DC charging pile. Two air duct isolation plates divide the interior of the cabinet into three chambers spaced apart in a first direction. Airflow enters the cabinet from the air inlets on the first and third side plates, bypasses the gap between the air duct isolation plates and the fourth side plate, and reaches the space between the two air duct isolation plates. The airflow then exits from the air outlet. The charging module can be installed between the two air duct isolation plates, allowing the airflow to dissipate heat from the charging module. Simultaneously, the sound waves generated by the cooling fan on the charging module need to undergo multiple reflections before passing through the gap between the air duct isolation plates and the fourth side plate. During reflection, some sound waves are absorbed, and the multiple reflections significantly increase the sound wave propagation path, further attenuating the sound waves and ultimately achieving noise reduction. Furthermore, the air inlets on both the first and third side plates effectively increase the airflow, resulting in better heat dissipation for the charging module inside the cabinet. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a noise-reducing DC charging pile proposed in an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the right-side structure of an embodiment of this application;
[0018] Figure 3 This is a rear view structural diagram of an embodiment of this application;
[0019] Figure 4 This is a schematic diagram of the internal structure of the cabinet according to an embodiment of this application;
[0020] Figure 5 This is a schematic diagram of the structure of the hot and cold zone isolation plate in an embodiment of this application;
[0021] Figure 6 This is a schematic diagram of the structure of the exhaust fan in an embodiment of this application;
[0022] Figure 7 This is a top view of the structure at the air duct isolation plate in an embodiment of this application;
[0023] Figure 8 This is a schematic diagram of the structure at the air duct isolation plate in an embodiment of this application;
[0024] Figure 9 for Figure 8 Enlarged view of the structure at point A in the middle.
[0025] In the diagram: 1. Cabinet; 11. First side panel; 111. Air inlet; 12. Second side panel; 121. Air outlet; 13. Third side panel; 14. Fourth side panel; 15. Bottom panel; 16. Top panel; 2. Air duct isolation plate; 21. Through hole; 22. Raised section; 23. Support plate; 3. Charging module; 4. Hot and cold zone isolation plate; 51. Air cover; 52. Exhaust fan.
[0026] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be apparently and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.
[0028] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.
[0029] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0030] In addition, if the present application embodiments involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.
[0031] Reference Figures 1-9The embodiment of the present application provides a kind of DC charging pile of noise reduction, the charging pile can include cabinet 1 and two air duct isolation plates 2, cabinet 1 has in the first direction relative arrangement first side plate 11 and third side plate 13 and in the second direction relative arrangement second side plate 12 and fourth side plate 14, first side plate 11 and third side plate 13 are all provided with air inlet 111, second side plate 12 is provided with air outlet 121, the second direction is intersected with the first direction;Two air duct isolation plates 2 are spaced apart in the first direction in cabinet 1, two air duct isolation plates 2 divide cabinet 1 into three chambers in the first direction sequentially arranged, in the first direction, air outlet 121 is located between two air duct isolation plates 2;Wherein, the gap between air duct isolation plate 2 and fourth side plate 14, three chambers are communicated with each other through the gap between air duct isolation plate 2 and fourth side plate 14.
[0032] It should be noted that, for the convenience of understanding, the shape of the cabinet 1 of the charging pile in the present application is taken as an example for illustration, the charging pile has a length, a width and a height, the plane where the first side plate 11 is located is the front face of the charging pile, the height direction of the charging pile can be the same as the direction of gravity, the cross section of the charging pile perpendicular to the height direction of the charging pile is rectangular, and the direction of the edge of the rectangle where the front face of the charging pile is located is the width direction of the charging pile, and the direction of the edge of the rectangle perpendicular to the front face of the charging pile is the length direction of the charging pile; wherein, the first direction can be the X direction, i.e. the length direction of the charging pile, the second direction can be the Y direction, i.e. the width direction of the charging pile, and the third direction can be the Z direction, i.e. the height direction of the charging pile.
[0033] The embodiment of the present application provides a kind of DC charging pile of noise reduction, the charging pile can include cabinet 1 and two air duct isolation plates 2, cabinet 1 has in the first direction relative arrangement first side plate 11 and third side plate 13 and in the second direction relative arrangement second side plate 12 and fourth side plate 14, first side plate 11 and third side plate 13 are all provided with air inlet 111, second side plate 12 is provided with air outlet 121, the second direction is intersected with the first direction;Two air duct isolation plates 2 are spaced apart in the first direction in cabinet 1, two air duct isolation plates 2 divide cabinet 1 into three chambers in the first direction sequentially arranged, in the first direction, air outlet 121 is located between two air duct isolation plates 2;Wherein, the gap between air duct isolation plate 2 and fourth side plate 14, three chambers are communicated with each other through the gap between air duct isolation plate 2 and fourth side plate 14.
[0034] Wherein, as shown in Figure 7 Black arrows indicate the direction of airflow, and the side of the first side plate 11 away from the third side plate 13 is the front face of the charging pile.
[0035] Meanwhile, by the combined design of the two air duct isolation plates 2, most of the components in the charging pile can be installed on the air duct isolation plates 2, and the installation of multiple devices is achieved by fully utilizing the two air duct isolation plates 2, thereby reducing the types and quantity of structural components, effectively reducing the overall size of the charging pile, and greatly reducing the cost of structural components of the cabinet.
[0036] Reference Figure 7 In the example embodiment, the air inlet 111 is opposite the air duct isolation plate 2 in the first direction; in the second direction, the gap between the air duct isolation plate 2 and the fourth side plate 14 and the air inlet 111 form a misalignment.
[0037] Specifically, the gap between the air duct isolation plate 2 and the fourth side plate 14 is referred to as the first gap. When the air inlet 111 is opposite the air duct isolation plate 2 in the first direction, and the first gap and the air inlet 111 form a misalignment, the first gap has a spacing with the air inlet 111 in the second direction. In this way, when the sound waves generated by the cooling fan on the charging module 3 pass through the first gap, the sound waves need to be reflected multiple times before they can reach the air inlet 111, further weakening the sound wave energy and reducing the noise emitted at the air inlet 111.
[0038] Reference Figures 4-6 In the example embodiment, the noise reduction direct current charging pile can also include a module group, which can include a plurality of charging modules 3, and the plurality of charging modules 3 are stacked between the two air duct isolation plates 2 in the third direction, which intersects the first direction and the second direction; wherein the cooling fan on the charging module 3 is located on the side of the charging module 3 away from the second side plate 12, and the ventilation opening on the charging module 3 is located on the side of the charging module 3 close to the second side plate 12; the module group has a gap with the second side plate 12.
[0039] Specifically, as shown in Figure 4 The charging module 3 can be stacked between the two air duct isolation plates 2 in the third direction, when cooling, the cooling fan starts to work to pump the air flow at the air inlet 111 to the inside of the charging module 3, and exhausts from the ventilation opening on the charging module 3, the exhaust air flow is in the gap between the module group and the second side plate 12, and is exhausted from the cabinet 1 through the air outlet 121 on the second side plate 12, completing the cooling of the charging module 3.
[0040] Reference Figure 4 In the example embodiment, the cabinet 1 also has a bottom plate 15 and a top plate 16 arranged opposite in the third direction, and the module group has a gap with the bottom plate 15 and the top plate 16.
[0041] Specifically, as shown in Figure 4As shown, the module group has a gap in the third direction from the bottom plate 15 and the top plate 16, so the position of the module group in the cabinet 1 is in the middle area of the cabinet 1, and the situation that the overall center of gravity of the charging pile is too high due to the position of the module group being too high does not occur, ensuring the stability of the charging pile; and the situation that the charging module 3 is not convenient to disassemble and assemble due to the position of the module group being too low does not occur, ensuring the convenience of disassembling and assembling the charging module 3.
[0042] Reference Figure 5 In the example embodiment, the noise reduction direct current charging pile can further include a cold and hot area isolation plate 4 connected between the two air duct isolation plates 2 and separating the corresponding cavity into a first chamber and a second chamber arranged in the second direction in sequence, and the second chamber is in communication with the air outlet 121; wherein the module group is located on the side of the cold and hot area isolation plate 4 away from the second side plate 12, and the ventilation opening is in communication with the second chamber.
[0043] Specifically, the second chamber can be understood as the gap between the module group and the second side plate 12, that is, the hot air discharged from the ventilation opening will flow into the second chamber and be discharged from the air outlet 121, and the hot air flow in the second chamber is blocked by the cold and hot area isolation plate 4 and cannot flow back to the cooling fan of the charging module 3.
[0044] It should be noted that the cold and hot area isolation plate 4 can be a whole plate, and the cold and hot area isolation plate 4 has a plurality of openings corresponding to the ventilation holes on the charging module 3, so that when the charging module 3 is installed in the first chamber, the ventilation opening can be in communication with the second chamber through the opening, and at the same time, the hot air in the second chamber is prevented from flowing back to the first chamber. Of course, the cold and hot area isolation plate 4 can also be two plates, and the two cold and hot area isolation plates 4 are arranged on the top plate 16 and the bottom plate 15 in the third direction, and the two cold and hot area isolation plates 4 have a gap therebetween, so that the charging module 3 is arranged between the two cold and hot area isolation plates 4 in the first direction, and the two cold and hot area isolation plates 4 are respectively attached to the adjacent charging module 3, so that the two cold and hot area isolation plates 4 cooperate with the charging module 3, and the hot air in the second chamber can also be prevented from flowing back to the first chamber.
[0045] It should be understood that the cold and hot area isolation plate 4 is connected between the two air duct isolation plates 2 and separates the corresponding cavity into a first chamber and a second chamber arranged in the second direction in sequence, wherein the corresponding cavity refers to the middle cavity of the three cavities arranged in the third direction.
[0046] Further, the hot air flow in the second chamber will cause the temperature of the second chamber to rise, and the temperature in the first chamber is relatively low, and the module group is located in the first chamber, that is, the charging module 3 works in a low-temperature area, so as to reduce the rotating speed of the cooling fan when working, thereby further reducing the noise emitted by the cooling fan when working while ensuring the heat dissipation effect.
[0047] It should be understood that the cold and hot area isolation plate 4 can also block the noise emitted by the heat dissipation fan from being discharged from the air outlet 121, thereby improving the noise reduction effect of the noise reduction structure.
[0048] Reference Figures 4-7 In the example embodiment, a plurality of through holes 21 are arranged on the air duct isolation plate 2 and extend through both sides of the air duct isolation plate 2; wherein in the third direction, each through hole 21 is located between the module group and the top plate 16.
[0049] Specifically, the module group is located in the first chamber, and the module group has high heat, so that the air temperature near the module group is high, thereby causing the air to rise and accumulate between the module group and the top plate 16, as shown in Figure 4 A plurality of through holes 21 are arranged on the air duct isolation plate 2, and the through holes 21 are located between the module group and the top plate 16, so that the hot air between the module group and the top plate 16 can flow to the other side of the corresponding air duct isolation plate 2 through the through holes 21, effectively preventing the space between the module group and the top plate 16 from accumulating heat and causing the temperature to be too high.
[0050] Reference Figure 7 In the example embodiment, the plane formed by the first direction and the second direction is a first plane, the orthographic projection of the air duct isolation plate 2 on the first plane is a first projection, and the first projection has at least one bending portion.
[0051] Specifically, as shown in Figure 7 For ease of understanding, the Figure 7 may be temporarily regarded as a projection view of the air duct isolation plate 2 on the first plane. The projection of the air duct isolation plate 2 on the first plane is a first projection, the first projection has at least one bending portion, and the bending portion on the first projection is formed by bending the air duct isolation plate 2 around the third direction. Therefore, when the first projection has at least one bending portion, the load-bearing capacity of the air duct isolation plate 2 in the third direction is greatly improved, so that the air duct isolation plate 2 after bending plays a role of main support of the entire charging pile.
[0052] Taking the air duct isolation plate 2 in the present application as an example for description, as shown in Figure 7 The first projection has one bending portion, and the air duct isolation plate 2 has one bending-shaped protruding section 22, and the projection of the protruding section 22 on the first plane is the bending portion.
[0053] Reference Figures 7-9 In the example embodiment, the side of each of the two air duct isolation plates 2 close to each other is provided with a plurality of support pieces 23 extending in the second direction, and the plurality of support pieces 23 are arranged at intervals in the third direction, and the third direction intersects the first direction and the second direction; wherein the support pieces 23 on the two air duct isolation plates 2 correspond to each other and are opposite in the first direction.
[0054] Specifically, each support sheet 23 can be arranged on the protruding section 22 on the corresponding air duct isolation plate 2, and the protruding sections 22 on the two air duct isolation plates 2 are close to each other.
[0055] In addition, the charging module 3 can be arranged between the two protruding sections 22, and the corresponding support sheet 23 on the two protruding sections 22 can serve as a support for the charging module 3. One charging module 3 can be placed on the two support sheets 23, and then the charging module 3 is moved in the second direction to insert and install the charging module 3, which is convenient and fast. The protruding section 22 can be parallel to the second direction, in other words, the protruding area is parallel to the second direction, so as to facilitate the insertion of the charging module 3 between the two protruding sections 22 in the second direction. At the same time, the protruding sections 22 on the two air duct isolation plates 2 are close to each other, which also facilitates the insertion of the charging module 3 between the protruding sections 22 on the two air duct isolation plates 2.
[0056] Further, as shown in Figure 9 , the support sheet 23 can be part of the protruding section 22. By bending the structure in the rectangular area in the length direction of the rectangular area by 90° along the length direction of the rectangular area, the support sheet 23 is formed. This is convenient and fast, and the installation of the charging module 3 can be completed without adding additional components, which is convenient and fast and has a lower overall cost of the charging pile.
[0057] Referring to Figures 1-3 , in an example embodiment, the first side plate 11, the second side plate 12, and the third side plate 13 each have a cabinet door; and the air inlet 111 and the air outlet 121 are arranged on the corresponding cabinet door.
[0058] Specifically, the air inlet 111 or the air outlet 121 is usually designed as a louver or a honeycomb, and a filter screen is arranged in the air inlet 111 or the air outlet 121 for filtering, or sound-absorbing cotton is arranged for noise reduction. By arranging the air inlet 111 and the air outlet 121 on the corresponding cabinet door, the components at the air inlet 111 or the air outlet 121 can be maintained by opening the corresponding cabinet door, which is convenient and fast to operate and has a low maintenance cost.
[0059] Further, as shown in Figure 3 , the third side plate 13 is provided with two air inlets 111 spaced apart in the third direction, which can effectively increase the air intake of the charging pile, thereby improving the heat dissipation effect of the charging module 3 inside the charging pile. Correspondingly, the cabinet door on the third side plate 13 has two and is arranged in the third direction, and the two air inlets 111 and the two cabinet doors on the third side plate 13 are arranged one by one, that is, one air inlet 111 is arranged on one cabinet door.
[0060] It should be understood that the front of the charging pile, i.e. the first side plate 11, needs to be provided with a human-computer interaction interface and other structures, so only one air inlet 111 is provided.
[0061] In addition, the fourth side plate 14 is also provided with a cabinet door, and after the cabinet door on the fourth side plate 14 is opened, the charging module 3 between the two air duct isolation plates 2 can be conveniently disassembled and assembled; that is, the charging pile of the present application is provided with five cabinet doors in total, which facilitates the maintenance of the internal structure of the charging pile.
[0062] Reference Figure 2 and Figure 6 In an exemplary embodiment, the side of the second side plate 12 facing the fourth side plate 14 is provided with an exhaust assembly connected corresponding to the air outlet 121; the exhaust assembly can include a fan cover 51 and an exhaust fan 52, the fan cover 51 and the second side plate 12 form an air outlet flow channel, one end of the air outlet flow channel corresponds to the air outlet 121, and the other end is located on the side of the air outlet 121 close to the top plate 16; the exhaust fan 52 is connected with the fan cover 51 and located at the end of the air outlet flow channel away from the air outlet 121.
[0063] Specifically, the exhaust fan 52 can send hot air in the second chamber to the air outlet flow channel and exhaust it from the air outlet 121.
[0064] Wherein, one end of the air outlet flow channel corresponds to the air outlet 121, and the other end is located on the side of the air outlet 121 close to the top plate 16, that is, the end of the air outlet flow channel away from the air outlet 121 is located above the air outlet 121, so if the external impurities enter the air outlet flow channel from the air outlet 121, they will be limited by gravity and fall to the lower part of the air outlet flow channel, that is, the impurities will not contact the exhaust fan 52 above the air outlet flow channel, nor will they further enter the cabinet 1.
[0065] It should be understood that one end of the air outlet flow channel corresponds to the air outlet 121 means that one end of the air outlet flow channel communicates with the air outlet 121.
[0066] Further, one exhaust fan 52, one fan cover 51 and one air outlet 121 constitute an air outlet assembly; as Figure 2 and Figure 6 As shown, the air outlet assembly has three groups and is arranged at intervals in the third direction, so that the exhaust effect is better.
[0067] Of course, the provision of three groups of air outlet assemblies in the present application is only a preferred embodiment and is not limited, the more the number of air outlet assemblies, the better the exhaust effect, but the higher the cost, the specific number can be selected according to the actual situation.
[0068] The above merely preferred embodiments of the present application and are not intended to limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A noise reduction direct current charging pile, characterized in that, The application relates to a cabinet body (1) with a first side plate (11) and a third side plate (13) oppositely arranged in a first direction, a second side plate (12) and a fourth side plate (14) oppositely arranged in a second direction, an air inlet (111) arranged on each of the first side plate (11) and the third side plate (13), and an air outlet (121) arranged on the second side plate (12), wherein the first direction intersects the second direction. Two air duct isolation plates (2) are arranged in the cabinet body (1) in the first direction, and the cabinet body (1) is divided into three chambers arranged in the first direction by the two air duct isolation plates (2), wherein the air outlet (121) is located between the two air duct isolation plates (2) in the first direction. The air duct isolation plate (2) and the fourth side plate (14) have a gap therebetween, and the three chambers are communicated with each other through the gap between the air duct isolation plate (2) and the fourth side plate (14). The air inlet (111) and the air duct isolation plate (2) are opposite to each other in the first direction.
2. The noise reduction direct current charging pile according to claim 1, wherein, In the second direction, the gap between the air duct isolation plate (2) and the fourth side plate (14) and the air inlet (111) are misaligned. The noise reduction direct current charging pile further comprises a module group, and the module group comprises:
3. The noise reduction direct current charging pile according to claim 1, wherein, A plurality of charging modules (3) are arranged in a third direction between the two air duct isolation plates (2), and the third direction intersects the first direction and the second direction. The cooling fan on the charging module (3) is located on a side of the charging module (3) away from the second side plate (12), and the air vent on the charging module (3) is located on a side of the charging module (3) close to the second side plate (12). The module group and the second side plate (12) have a gap therebetween. The cabinet body (1) further comprises a bottom plate (15) and a top plate (16) oppositely arranged in the third direction, and the module group, the bottom plate (15) and the top plate (16) have gaps therebetween.
4. The noise reduction direct current charging pile of claim 3, wherein, The noise reduction direct current charging pile further comprises:
5. The noise reduction direct current charging pile according to claim 4, characterized in that, A cold and hot area isolation plate (4) is connected between the two air duct isolation plates (2) and separates the chambers into a first chamber and a second chamber arranged in the second direction, and the second chamber is communicated with the air outlet (121). The module group is located on a side of the cold and hot area isolation plate (4) away from the second side plate (12), and the air vent is communicated with the second chamber. A plurality of through holes (21) are arranged on one of the air duct isolation plates (2) and penetrate through both sides of the air duct isolation plate (2).
6. The noise reduction direct current charging pile according to claim 4, wherein, In the third direction, each of the through holes (21) is located between the module group and the top plate (16). The first direction and the second direction form a first plane, the orthographic projection of the air duct isolation plate (2) on the first plane is a first projection, and the first projection has at least one bending part.
7. The noise reduction direct current charging pile of claim 1, wherein, 8. The noise reduction direct current charging pile of claim 1, wherein, Two said air duct isolation plates (2) are provided with a plurality of support pieces (23) extending along the second direction on the side close to each other, and a plurality of said support pieces (23) are arranged in the third direction, which intersects with the first direction and the second direction. Wherein, said support pieces (23) on the two said air duct isolation plates (2) correspond to each other and are opposite in the first direction.
9. The noise reduction direct current charging pile of claim 1, wherein, Said first side plate (11), said second side plate (12) and said third side plate (13) are all provided with cabinet doors. Said air inlet (111) and said air outlet (121) are both arranged on the corresponding cabinet door.
10. The noise reduction direct current charging pile of claim 4, wherein, Said second side plate (12) is provided with an air exhaust assembly corresponding to said air outlet (121) on the side facing said fourth side plate (14). Said air exhaust assembly comprises: A fan cover (51) which forms an air outlet flow channel with said second side plate (12), one end of said air outlet flow channel corresponds to said air outlet (121), and the other end is located on the side of said air outlet (121) close to said top plate (16); An air exhaust fan (52) connected with said fan cover (51) and located at the end of said air outlet flow channel away from said air outlet (121).