Charging pile structure equipped with gun line heat dissipation system

Abstract

According to the charging pile structure provided by the utility model, the charging pile structure is improved, so that the effect of simultaneously dissipating heat of a charging component and a refrigeration component of a gun line heat dissipation system is realized. The charging pile structure equipped with the gun line heat dissipation system comprises a cabinet body and an air-air heat exchanger, the cabinet body comprises a low protection cavity part and a high protection cavity part which are isolated from each other, the air-air heat exchanger is provided with an external refrigerant channel and an internal circulation cooling channel, an inlet of the external refrigerant channel is communicated with the outside, and an outlet of the external refrigerant channel is communicated with the low protection cavity part; the low protection cavity part can also discharge gas in the low protection cavity part to the outside; the high protection cavity part is provided with an internal circulation air inlet and an internal circulation air outlet, the internal circulation air inlet is communicated with an outlet of the internal circulation cooling channel, and the internal circulation air outlet is communicated with an inlet of the internal circulation cooling channel.

Description

Technical Field

[0001] This utility model relates to the field of charging device technology, specifically to a charging pile structure equipped with a gun wire heat dissipation system. Background Technology

[0002] With the rapid growth of the electric vehicle market, the market demand and technical requirements for high-power multi-channel DC charging terminals (hereinafter referred to as "charging terminals") are constantly increasing as key charging equipment. However, in the actual use of high-power multi-channel DC charging terminals, there is a significant problem of excessive heat generation.

[0003] Especially in existing charging pile structures equipped with gun wire cooling systems, the cooling components of the gun wire cooling system are installed inside the cabinet. However, the cooling components themselves generate a lot of heat during the cooling process, which puts forward further requirements for the heat dissipation of the charging components inside the cabinet. Utility Model Content

[0004] The purpose of this invention is to provide a charging pile structure equipped with a gun wire cooling system. By improving the charging pile structure, the effect of simultaneously cooling the charging components and the cooling components of the gun wire cooling system is achieved.

[0005] To achieve the above objectives, this utility model provides a charging pile structure equipped with a gun wire heat dissipation system, including a cabinet and an air-to-air heat exchanger. The cabinet includes a low-protection cavity and a high-protection cavity that are isolated from each other. The air-to-air heat exchanger has an external refrigerant channel and an internal circulation cooling channel. The inlet of the external refrigerant channel is connected to the outside, and the outlet is connected to the low-protection cavity. The low-protection cavity can also discharge the gas inside to the outside.

[0006] The high-protection cavity is provided with an internal circulation air inlet and an internal circulation air outlet. The internal circulation air inlet is connected to the outlet of the internal circulation cooling channel, and the internal circulation air outlet is connected to the inlet of the internal circulation cooling channel.

[0007] By adopting this structure, the charging cabinet can be divided into a low-protection chamber and a high-protection chamber. The low-protection chamber is used to house the cooling components of the gun wire heat dissipation system, while the high-protection chamber is used to house the charging components. The temperature gradient between the two protective chambers is utilized, and heat dissipation is achieved by setting up an air-to-air heat exchanger. This simplifies the structure of traditional charging cabinets, ensures the heat dissipation requirements of the charging cabinet, and guarantees the protection level in the high-protection chamber.

[0008] Optionally, in the height direction, the lower protective cavity is located above the higher protective cavity. This allows the higher-temperature lower protective cavity to be positioned at the top with higher ventilation, thereby preventing external airflow from being blocked during heat exchange.

[0009] Optionally, the cabinet body is also provided with an air duct to enable gas communication between the internal circulation cooling channel and the high-protection cavity. This simplifies the charging cabinet structure, utilizes the cabinet's own structure to create an air duct for gas communication, and also ensures better heat exchange.

[0010] Optionally, it also includes a first vertical plate extending vertically, which divides the cabinet into a front cavity and a rear cavity spaced apart; the rear cavity serves as part of the air duct, and the high-protection cavity and the low-protection cavity are both located in the front cavity.

[0011] By using the entire back of the charging cabinet as an air duct, the airflow within the internal circulation cooling channel can be guaranteed, thus ensuring the heat dissipation requirements.

[0012] Optionally, a first horizontal plate extending horizontally is also provided in the front cavity, the lower surface of which constitutes part of the cavity wall of the high protection cavity; a second vertical plate is fixedly connected to the upper surface of the first horizontal plate, the second vertical plate extending vertically and perpendicular to the first vertical plate; part of the upper surface of the first horizontal plate and one side wall of the second vertical plate constitute part of the cavity wall of the low protection cavity. This further refines the structure and position of the two protection cavities, and this arrangement is more reasonable, has a high degree of integration, and is conducive to the miniaturization of the charging cabinet; at the same time, this cooling air always circulates within the cabinet and does not form a direct connection with the outside, changing the drawbacks of traditional direct external airflow for cooling and preventing dust and corrosive substances from entering the high protection cavity.

[0013] Optionally, the internal circulation air outlet is located on the portion of the first vertical plate that forms the high protection cavity; the internal circulation air inlet is located on the upper surface of another portion of the first horizontal plate. The internal circulation air inlet located on the first horizontal plate allows it to directly blow into the high protection cavity, further improving the cooling effect on the charging components inside.

[0014] Optionally, the other side wall of the second vertical plate, another part of the upper surface of the first horizontal plate, and a portion of the wall of the cabinet constitute another part of the air duct. The air duct is at the same height as the lower protective cavity at its highest point, effectively increasing the length of the air duct.

[0015] Optionally, the first vertical plate has an opening that connects the front cavity and the rear cavity; a second horizontal plate extending laterally is provided at the opening, the second horizontal plate being used to fix the air-to-air heat exchanger and located within the front cavity; the edge of the air-to-air heat exchanger is fixedly connected to the opening. Thus, the air-to-air heat exchanger can be positioned at the top of the cabinet, avoiding obstruction of the charging cabinet's exterior and ensuring smooth flow of the external refrigerant channel.

[0016] Optionally, the cabinet includes two vertically extending side walls. One side wall has several first wall holes that connect with the inlets of the external refrigerant channels. The other side wall has several second wall holes that connect with the outlets of the external refrigerant channels. The other side wall also has a third wall hole, where a second exhaust fan is installed. This enables heat dissipation from the external refrigerant channels to the low-protection cavity.

[0017] Optionally, the system further includes a first induced draft fan, which is disposed at the internal circulation air inlet and / or the internal circulation air outlet. The first induced draft fan serves as a guiding device for internal airflow, guiding the internal airflow to circulate internally.

[0018] Other features and advantages of this specification will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.

[0020] Figure 1 This is a schematic diagram of one side of the charging structure in an embodiment of this utility model;

[0021] Figure 2 yes Figure 1 The front view;

[0022] Figure 3 yes Figure 1 A schematic diagram of the other side of the axial structure;

[0023] Figure 4 yes Figure 3 A front and side view;

[0024] Figure 5 yes Figure 2 Top view;

[0025] Figure 6 This is a schematic diagram of the air-to-air heat exchanger in an embodiment of this utility model.

[0026] Figure label:

[0027] 1-Cabinet body; 11-Side cabinet wall; 12-First vertical plate; 13-First horizontal plate; 14-Second vertical plate; 15-Second horizontal plate; 2-Air-to-air heat exchanger; 21-External refrigerant channel; 22-Internal circulation cooling channel; 3-Low protection chamber; 4-High protection chamber; 41-Internal circulation air outlet; 42-Internal circulation air inlet; 5-Air duct; 51-Vertical duct section; 52-Horizontal duct section; 7-Charging components; 8-Refrigeration components. Detailed Implementation

[0028] This utility model provides a charging pile structure equipped with a gun wire heat dissipation system. By improving the charging pile structure, the effect of simultaneously dissipating heat from the charging components and the cooling components of the gun wire heat dissipation system is achieved.

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0031] Please refer to Figures 1 to 6 , Figure 1 This is a schematic diagram of one side of the charging structure in an embodiment of this utility model; Figure 2 yes Figure 1 The front view; Figure 3 yes Figure 1 A schematic diagram of the other side of the axial structure; Figure 4 yes Figure 3 A front and side view; Figure 5 yes Figure 2 Top view; Figure 6 This is a schematic diagram of the air-to-air heat exchanger in an embodiment of this utility model.

[0032] This utility model provides a charging pile structure equipped with a gun wire cooling system. In this application, the charging pile structure includes a cabinet 1 and an air-to-air heat exchanger 2. The cabinet 1 is divided into two protective chambers with different protection levels: a low-protection chamber 3 and a high-protection chamber 4. These protection levels include dustproof and waterproof properties. The high-protection chamber 4, with its higher protection level, is used to install charging components 7, while the low-protection chamber 3, with its lower protection level, is used to install cooling components 8. This avoids the incompatibility between heat dissipation and protection levels that would result from placing the cooling components 8 and the charging components in the same chamber.

[0033] Meanwhile, to prevent external heat dissipation gas from entering the high-protection area, this application provides an air-to-air heat exchanger 2, which has an external refrigerant channel 21 and an internal circulation cooling channel 22. The external refrigerant channel 21 is used to circulate external gas. The inlet of the external refrigerant channel 21 is connected to the outside, and the outlet is connected to the low-protection cavity 3. The low-protection cavity 3 can also discharge the gas inside to the outside.

[0034] In other words, the external refrigerant channel 21 is connected to the low-protection cavity 3. Before cooling the low-protection cavity 3, it exchanges heat with the circulating gas in the internal circulation duct 5 in the air-to-air heat exchanger 2, and cools it down. The gas temperature in the external refrigerant channel 21 rises, then enters the low-protection cavity 3 and is then discharged to the outside through it, while simultaneously carrying away the heat in the low-protection cavity 3 to cool it down.

[0035] The reason for this design is that the cooling component 8 dissipates more heat than the charging component 7. Even when using external refrigerant gas that has been heated by heat exchange with the internal circulating gas, it can still meet the heat dissipation requirements of the charging component 7.

[0036] In this embodiment, the high-protection cavity 4 is provided with an internal circulation air inlet 42 and an internal circulation air outlet 41. The internal circulation air inlet 42 is connected to the outlet of the internal circulation cooling channel 22, and the internal circulation air outlet 41 is connected to the inlet of the internal circulation cooling channel 22. Thus, the internal airflow forms an internal circulation within the internal circulation cooling channel 22 and the high-protection cavity 4, without contacting external gas. While cooling the high-protection cavity 4, this further ensures that external airflow does not directly contact the high-protection cavity 4, preventing damage or corrosion to the charging components 7.

[0037] By adopting this structure, the charging cabinet can be divided into a low protection chamber and a high protection chamber. The low protection chamber is used to house the cooling components 8 of the gun wire heat dissipation system, and the high protection chamber is used to house the charging components 7. The temperature gradient between the two protection chambers is utilized, and the heat dissipation of the two protection chambers is achieved by setting up an air-to-air heat exchanger 2. This simplifies the structure of the traditional charging cabinet, ensures the heat dissipation requirements of the charging cabinet, and ensures the protection level in the high protection chamber.

[0038] The following explanation uses a specific charging cabinet structure as an example.

[0039] In one alternative implementation, the lower protective cavity 3 is located above the higher protective cavity 4 in the vertical direction. This allows the higher-temperature lower protective cavity to be positioned at the top with higher ventilation, thereby preventing obstruction of external airflow during heat exchange. Of course, the lower protective cavity 3 can also be located in front of, behind, or below the higher protective cavity 4; those skilled in the art can arrange it as needed. As long as the lower protective cavity 3 is isolated from the higher protective cavity 4, it falls within the protection scope of this application.

[0040] In another embodiment, an air duct 5 is also provided inside the cabinet 1. The air duct 5 is used to achieve gas communication between the internal circulation cooling channel 22 and the high-protection cavity 4. This simplifies the charging cabinet structure, utilizes the structure of the cabinet 1 itself to form the air duct 5 to achieve gas communication, and also ensures better heat exchange effect. Of course, the internal gas circulation can also be achieved by setting several air ducts inside the cabinet 1. As long as the internal gas circulation of the cabinet 1 can be achieved, it falls within the protection scope of this application.

[0041] In a specific example, the cabinet 1 includes two vertically extending side cabinet walls 11, which are arranged opposite each other in the left-right direction of the charging cabinet structure. It also includes a front cabinet wall and a rear cabinet wall connected between the two side cabinet walls 11, which are arranged opposite each other along the thickness direction of the charging cabinet structure. The charging cabinet structure also includes a top cabinet wall connected to the top of the two side cabinet walls 11, the front cabinet wall, and the rear cabinet wall.

[0042] One side cabinet wall 11 has several first wall holes that connect to the inlets of each external refrigerant channel 21; another vertical wall has several second wall holes that connect to the outlets of each external refrigerant channel 21; and another side cabinet wall has a third wall hole, which is equipped with a second exhaust fan. This enables the external refrigerant channels 21 to dissipate heat from the low-protection cavity 3.

[0043] The charging cabinet structure also includes a first vertical plate 12 extending vertically. The first vertical plate 12 is parallel to the front and rear cabinet walls and located between them, with at least a portion of its top end fixedly connected to the top cabinet wall. The first vertical plate 12 divides the cabinet 1 into a front cavity and a rear cavity spaced apart; the rear cavity serves as part of the air duct 5, while the high protection cavity 4 and the low protection cavity 3 are both located in the front cavity. That is, the air duct 5 has a vertical section 51, which is enclosed by the first vertical plate 12 and the rear cabinet wall. The portion of the first vertical plate 12 that forms the high protection cavity 4 has several holes, which are arranged in an array or distributed in a certain pattern, serving as the internal circulation air outlet 41. The internal circulation air inlet 42 is located above the internal circulation air outlet 41 in the height direction. The front and rear directions are referenced to the thickness direction of the charging cabinet; in the thickness direction, the side located on one side of the first vertical plate 12 is the front, and the other side is the rear.

[0044] By using the entire back of the charging cabinet as the air duct 5, the air flow rate within the internal circulation cooling channel 22 can be guaranteed, thereby ensuring the heat dissipation requirements.

[0045] It is understood that the high protection cavity 4 and the low protection cavity 3 can also be located in the rear cavity, or the two protection cavities can be set in the front cavity and the rear cavity respectively. As long as the two protection cavities are separated, they fall within the protection scope of this application.

[0046] In the aforementioned embodiment, a first horizontal plate 13 extending horizontally is also provided in the front cavity. The first horizontal plate 13 connects to the left cabinet wall and the right cabinet wall in the left-right direction, and divides the front cavity into upper and lower sub-cavities. At least a portion of the lower sub-cavity serves as the high protection cavity 4, and at least a portion of the upper sub-cavity serves as the low protection cavity 3.

[0047] Optionally, the first vertical plate 12 has an opening that connects the front cavity and the rear cavity; the first horizontal plate 13 is located below the opening; the first horizontal plate 13 constitutes another part of the air duct 5. That is, at least a portion of the first horizontal plate 13 and the first vertical plate 12 enclose another part of the air duct 5. The structure of this part of the air duct 5 is determined by the extension direction of the first horizontal plate 13. This part of the air duct 5 is defined as a transverse section 52. Thus, the air duct 5 forms a "7"-shaped structure, and the high-protection area is located below the "7"-shaped structure. In other words, in this embodiment, the first horizontal plate 13 can serve entirely as part of the wall of the air duct 5, or a portion of the first horizontal plate 13 can serve as part of the wall of the air duct 5. The above and similar situations are all within the protection scope of this application.

[0048] In another example, the lower surface of the first horizontal plate 13 forms part of the cavity wall of the high-protection cavity 4. A second vertical plate 14 is also fixedly connected to the upper surface of the first horizontal plate 13. The second vertical plate 14 extends vertically and is perpendicular to the first vertical plate 12. The second vertical plate 14 extends along the thickness direction of the cabinet 1 structure. Part of the upper surface of the first horizontal plate 13 and one side wall of the second vertical plate 14 form part of the cavity wall of the low-protection cavity 3. This further refines the structure and position of the two protective cavities. This arrangement is more reasonable, has a high degree of integration, and is conducive to the miniaturization of the charging cabinet. Meanwhile, this cooling air always circulates within the cabinet 1 and does not form a direct connection with the outside, changing the drawbacks of traditional direct external airflow for cooling and preventing dust and corrosive substances from entering the high-protection cavity 4.

[0049] In the example above, the internal circulation air outlet 41 is located on the portion of the first vertical plate 12 that constitutes the high protection cavity 4; the internal circulation air inlet 42 is located on the upper surface of another portion of the first horizontal plate 13. The internal circulation air inlet 42 located on the first horizontal plate 13 can directly blow air into the high protection cavity, further improving the cooling effect on the charging components 7 inside.

[0050] Optionally, the other side wall of the second vertical plate 14, another part of the upper surface of the first horizontal plate 13, and part of the wall of the cabinet 1 constitute another part of the air duct 5. The air duct 5 is at the same height as the low protective cavity at its highest point, effectively increasing the length of the air duct 5.

[0051] The specific layout of the air-to-air heat exchanger 2 is described below.

[0052] In this embodiment, a second horizontal plate 15 extending laterally is provided at the opening. The second horizontal plate 15 is used to fix the air-to-air heat exchanger 2 and is located in the front cavity, specifically in the upper sub-cavity. The edge of the air-to-air heat exchanger 2 is fixedly connected to the opening. Thus, the air-to-air heat exchanger 2 can be positioned at the top of the cabinet 1, avoiding obstruction of the charging cabinet exterior and ensuring smooth flow of the external refrigerant channel 21.

[0053] In the above embodiments, a first induced draft fan is also included, which is disposed at the internal circulation air inlet 42 and / or the internal circulation air outlet 41. The first induced draft fan serves as a guiding device for internal airflow, guiding the internal airflow to circulate internally. Of course, the first and second induced draft fans can also be disposed in other locations, as long as they guide the airflow from the "inlet" to the "outlet," and those skilled in the art can choose accordingly.

[0054] Compared with the prior art, this application has the following advantages:

[0055] First, the high-protection cavity 4 is a closed space, and the airflow for heat dissipation is always kept circulating inside the cabinet 1, which avoids dust and corrosive gases from entering and damaging the charging components 7, and reduces maintenance costs.

[0056] Secondly, by setting up high and low protective cavities 3 at intervals, it is possible to achieve both good heat dissipation and a matching level of protection.

[0057] Third, the structure of the cabinet 1 is simplified by forming an air duct 5 within the cabinet itself; at the same time, by setting a “7”-shaped air duct 5, direct heat dissipation of the high-protection cavity 4 is achieved.

[0058] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A charging pile structure equipped with a gun wire heat dissipation system, characterized in that, It includes a cabinet (1) and an air-to-air heat exchanger (2). The cabinet (1) includes a low-protection chamber (3) and a high-protection chamber (4) that are isolated from each other. The air-to-air heat exchanger (2) has an external refrigerant channel (21) and an internal circulation cooling channel (22). The inlet of the external refrigerant channel (21) is connected to the outside, and the outlet is connected to the low-protection chamber (3). The low-protection chamber (3) can also discharge the gas inside to the outside. The high-protection cavity (4) is provided with an internal circulation air inlet (42) and an internal circulation air outlet (41). The internal circulation air inlet (42) is connected to the outlet of the internal circulation cooling channel (22), and the internal circulation air outlet (41) is connected to the inlet of the internal circulation cooling channel (22).

2. The charging pile structure equipped with a gun wire heat dissipation system according to claim 1, characterized in that, In the height direction, the low protective cavity (3) is located above the high protective cavity (4).

3. The charging pile structure equipped with a gun wire heat dissipation system according to claim 1, characterized in that, The cabinet (1) is also provided with an air duct (5), which is used to realize the gas communication between the internal circulation cooling channel (22) and the high protection cavity (4).

4. The charging pile structure equipped with a gun wire heat dissipation system according to claim 3, characterized in that, It also includes a first vertical plate (12) extending vertically, which divides the cabinet (1) into a front cavity and a rear cavity spaced apart; The rear cavity serves as part of the air duct (5), while the high-protection cavity (4) and the low-protection cavity (3) are both located in the front cavity.

5. The charging pile structure equipped with a gun wire heat dissipation system according to claim 4, characterized in that, A first horizontal plate (13) extending in the horizontal direction is also provided in the front cavity. The lower surface of the first horizontal plate (13) constitutes part of the cavity wall of the high protection cavity (4). The first vertical plate (12) has an opening, and the first horizontal plate (13) is located below the opening. At least part of the upper surface of the first horizontal plate (13) constitutes another part of the wall of the air duct (5).

6. The charging pile structure equipped with a gun wire heat dissipation system according to claim 5, characterized in that, The internal circulation air outlet (41) is located on the part of the first vertical plate (12) that constitutes the high protection cavity (4); the internal circulation air inlet (42) is located on the first horizontal plate (13).

7. The charging pile structure equipped with a gun wire heat dissipation system according to claim 6, characterized in that, The upper surface of the first horizontal plate (13) is also fixedly connected to a second vertical plate (14), which extends vertically and is perpendicular to the first vertical plate (12); a portion of the upper surface of the first horizontal plate (13) and a side wall of the second vertical plate (14) constitute a portion of the cavity wall of the low protection cavity (3). The other side wall of the second vertical plate (14) and the other part of the upper surface of the first horizontal plate (13) constitute the wall of another part of the air duct (5).

8. The charging pile structure equipped with a gun wire heat dissipation system according to claim 7, characterized in that, The opening connects the front cavity and the rear cavity, and the air-to-air heat exchanger (2) is fixedly connected to the opening.

9. The charging pile structure equipped with a gun wire heat dissipation system according to claim 8, characterized in that, The cabinet (1) includes two vertically extending side cabinet walls (11). One side cabinet wall (11) has several first wall holes that are connected to the inlets of the external refrigerant channels (21). The other side cabinet wall (11) has several second wall holes that are connected to the outlets of the external refrigerant channels (21). The other side cabinet wall (11) also has a third wall hole, which is equipped with a second induced draft fan.

10. The charging pile structure equipped with a gun wire heat dissipation system according to any one of claims 1-9, characterized in that, It also includes a first exhaust fan, which is disposed at the internal circulation air inlet (42) and / or the internal circulation air outlet (41).

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