Mobile direct current charging pile

Abstract

The utility model relates to a mobile direct current charging pile which comprises a shell, a mounting part, a power module and a heat dissipation piece, an air inlet is formed in one side or one end of the shell, at least one ventilation opening is formed in the side wall of the side, away from the air inlet, of the shell, and an inner cavity of the shell is divided into a first space and a second space in the first direction; the mounting part is arranged in the first space and located between the air inlet and the ventilation opening, a heat dissipation space is defined by the peripheral side wall of the mounting part and the inner wall of the shell, and the heat dissipation space communicates with the air inlet and the ventilation opening; the power supply module is arranged in the mounting part; the heat dissipation piece is arranged in the first space, the heat dissipation piece is opposite to and communicated with the ventilation opening, and the heat dissipation piece is used for discharging hot air from the heat dissipation space out of the shell; and the second space is used for accommodating electrical elements for assembling the power supply module. According to the mobile direct current charging pile, the heat dissipation performance can be ensured while the body type conforms to the lightweight design.

Description

Technical Field

[0001] This application relates to the field of charging pile technology, and in particular to mobile DC charging piles. Background Technology

[0002] Mobile DC charging stations are mainly used to provide DC charging services for electric vehicles. The mobile DC charging station is equipped with a power module for power supply. The power module generates a lot of heat during the process of converting AC power to DC power.

[0003] In related technologies, mobile DC charging piles are usually equipped with cooling fans to dissipate heat from the power module. However, for some mobile DC charging piles with high charging power, in order to ensure the heat dissipation effect, a larger space is usually reserved in the cabinet to accommodate the cooling fan. This results in a larger size of the mobile DC charging pile, making it inconvenient to install and disassemble, and making it difficult to meet the user's needs in smaller application scenarios such as indoors. Utility Model Content

[0004] Therefore, it is necessary to provide a mobile DC charging station to address the problem that the aforementioned mobile DC charging stations cannot meet the user's needs in smaller application scenarios such as indoors.

[0005] In a first aspect, this application provides a mobile DC charging station, comprising:

[0006] The housing has an air inlet on one side or one end, and at least one ventilation opening is provided on the side wall of the housing away from the air inlet. The inner cavity of the housing is divided into a first space and a second space along a first direction.

[0007] The mounting part is located in the first space and between the air inlet and the vent. The outer peripheral side wall of the mounting part and the inner wall of the shell enclose a heat dissipation space, which is connected to both the air inlet and the vent.

[0008] The power module is located inside the mounting section;

[0009] A heat sink is disposed in the first space, and the heat sink is opposite to and connected to the vent. The heat sink is used to exhaust hot air from the heat dissipation space to the outside of the housing.

[0010] The second space is used to house the electrical components for assembling the power supply module.

[0011] In one embodiment, the mounting section includes:

[0012] Two side panels, the horizontal end of the side panel is connected to the inner wall of the shell, and the vertical end of the side panel is connected to the inner wall of the shell on the side of the air inlet;

[0013] The back plate is connected between the two side plates. The outer wall of the back plate, the outer walls of the two side plates, and the inner wall of the bottom of the housing form a heat dissipation space. The back plate and the two side plates form a receiving slot for accommodating the power module. The receiving slot is opposite to and connected to the air inlet. The second space is located on the side of the housing away from the receiving slot.

[0014] The abutment is located at one end of the back panel near the vent, and is used to define the installation position of the power module in the receiving slot;

[0015] The support component is located at the end of the back panel near the air inlet. The support component is used to support the end of the power module away from the abutment component, so as to cooperate with the abutment component to limit the power module in the receiving groove.

[0016] In one embodiment, the mobile DC charging pile further includes a heat dissipation section, which is disposed in the first space and is located above and connected to the mounting section. The heat dissipation section is connected to the receiving groove and the ventilation opening. The heat dissipation section is provided with a first wiring port for wiring connected to the heat dissipation component to pass through and a second wiring port for plug-in wiring connected to the power module.

[0017] In one embodiment, there are two vents, one of which is located above one side plate and the other is located above another side plate. The heat sink includes at least one cooling fan, and the cooling fan is configured to correspond one-to-one with the vent.

[0018] In one embodiment, the heat dissipation unit includes:

[0019] The connecting block is located on the inner top wall of the housing;

[0020] The receiving plate has one end connected to the side wall of the connecting block, and the other end of the receiving plate extends horizontally with a wiring plate. The wiring plate is located on the side of the receiving groove near the vent to facilitate the installation of the power module wiring terminals. The receiving plate and the back plate together form a whole that divides the inner cavity of the housing into a first space and a second space.

[0021] Two support frames, one of which is installed on one side plate and the other on the other side plate, with the support frames facing the vents;

[0022] A heat-conducting component, mounted on the receiving plate, is used to guide hot air.

[0023] In one embodiment, the heat-conducting element includes:

[0024] Two inclined heat-conducting plates are connected at their closest ends, and their furthest ends extend upward toward the vents closest to them.

[0025] A baffle is installed at the connection between the two heat-conducting plates, with the end of the baffle away from the heat-conducting plates extending toward the receiving groove.

[0026] In one embodiment, the end of the back panel away from the air inlet protrudes from the wiring board, and the abutment includes an abutment plate connected to the end of the back panel away from the air inlet.

[0027] In one embodiment, the abutment plate is provided with multiple heat dissipation holes.

[0028] In one embodiment, the support includes two support rods, one of which is located near the bottom end of one side plate and the other is located near the bottom end of another side plate. The support rods are detachably connected to the back plate.

[0029] In one embodiment, dustproof components are provided at both the air inlet and the vent.

[0030] The aforementioned mobile DC charging pile includes a housing, a mounting section, a power module, and a heat sink. The housing has an air inlet on one side or one end, and at least one ventilation opening on the side wall of the housing away from the air inlet. The housing cavity is divided into a first space and a second space along a first direction. The mounting section is located within the first space, between the air inlet and the ventilation opening. The outer peripheral side wall of the mounting section and the inner wall of the housing enclose a heat dissipation space, which is connected to both the air inlet and the ventilation opening. The power module is located within the mounting section. The heat sink is located within the first space, opposite and connected to the ventilation opening, and is used to exhaust hot air from the heat dissipation space outside the housing. The second space is used to accommodate the electrical components for assembling the power module. The mobile DC charging pile of this application divides the inner cavity of the housing into a first space for heat dissipation and a second space for wiring installation. This helps maintain the neatness of the power module during installation, facilitating subsequent maintenance or disassembly, and also helps to achieve rapid heat dissipation of the power module. Specifically, the hot air generated by the power module during operation accumulates in the heat dissipation space and floats upward on its own. Under the guidance of the heat dissipation components, the hot air will accelerate upward flow and be discharged from the housing through the vents. This allows the mobile DC charging pile to meet the user's needs in smaller application scenarios such as indoors, while also helping to ensure the heat dissipation performance of the small mobile DC charging pile. Attached Figure Description

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 This is a schematic diagram of the structure of a mobile DC charging pile in some embodiments of this application;

[0033] Figure 2 This is a structural diagram illustrating the positional relationship between the first space, the second space, the heat dissipation space, the power module, the air inlet, and the vent in some embodiments of this application;

[0034] Figure 3 This is a structural schematic diagram illustrating the connection relationship between the housing, mounting part, abutment plate and heat dissipation part in some embodiments of this application;

[0035] Figure 4 This is a schematic diagram illustrating the positional relationship between the heat dissipation space, the first space, the second space, and the heat-conducting component in some embodiments of this application.

[0036] Explanation of icon numbers:

[0037] 100. Housing; 101. Air inlet; 102. Ventilation opening; 103. First space; 104. Second space; 105. Heat dissipation space; 106. Panel; 107. Mounting slot; 200. Mounting part; 210. Side plate; 220. Back plate; 230. Abutment plate; 232. Heat dissipation hole; 240. Support rod; 300. Power module; 400. Heat dissipation part; 402. First wiring port; 410. Connecting block; 420. Support plate; 422. Wiring board; 430. Support frame; 440. Heat-conducting component; 442. Heat-conducting plate; 444. Baffle; 500. Dustproof net; 600. Charging gun. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] To address the issue that mobile DC charging stations in related technologies cannot meet users' needs in smaller application scenarios such as indoors, referencing Figures 1 to 4 One embodiment of this application provides a mobile DC charging pile, including a housing 100, a mounting part 200, a power module 300, and a heat sink. An air inlet 101 is provided on one side or one end of the housing 100, and at least one ventilation opening 102 is provided on the side wall of the housing 100 away from the air inlet 101. The inner cavity of the housing 100 is divided into a first space 103 and a second space 104 along a first direction. The mounting part 200 is disposed within the first space 103, and the mounting part 200 is located between the air inlet 101 and the ventilation opening. Between 102, the outer peripheral sidewall of the mounting part 200 and the inner wall of the housing 100 enclose a heat dissipation space 105, which is connected to both the air inlet 101 and the vent 102; the power module 300 is disposed in the mounting part 200; the heat sink is disposed in the first space 103, which is opposite to and connected to the vent 102, and is used to exhaust hot air from the heat dissipation space 105 to the outside of the housing 100; the second space 104 is used to accommodate the electrical components of the power module 300.

[0045] The housing 100 is rectangular in shape, and a panel 106 is fitted into one side of the housing 100. The panel 106 is opposite to the second space 104. That is to say, after the panel 106 is removed, the worker can inspect or disassemble the electrical components housed in the second space 104. Since the housing 100 is rectangular in shape, in this embodiment, it is preferable to divide the inner cavity of the housing 100 into a first space 103 and a second space 104, taking the width direction of the housing 100 as an example. The side wall of the housing 100 near the panel 106 is also provided with a socket for connecting the charging gun 600. In this embodiment, the air inlet 101 is located at one end of the housing 100 as an example. When the mobile DC charging pile is installed vertically on various carriers such as a trolley, wall, or charging pile body, the air inlet 101 is located on the bottom wall of the housing 100, and the ventilation port 102 is located on the side wall at the top of the housing 100. The air inlet 101 is used to introduce fresh air from outside the housing 100, and the ventilation port 102 is used to exhaust hot air inside the housing 100. The heat dissipation space 105 is located in the first space 103 and is also connected to the second space 104. The heat dissipation space 105 is arranged around the periphery of the mounting part 200. In this embodiment, since one side wall of the housing 100 abuts against the side wall of the power module 300, the heat dissipation space 105 is arranged around the other three sides of the power module 300. During installation or use, the mobile DC charging pile in this embodiment is usually installed vertically on a base such as a wall. That is, the mounting part 200 is located below the heat sink, the air inlet 101 is located below and is connected to the first space 103, and the ventilation vent 102 is located above and is also connected to the first space 103. The heat dissipation direction of this mobile DC charging pile is from bottom to top. Since hot air itself floats upward, installing the power module 300 in the mounting part 200 located below and placing the heat sink and ventilation vent 102 above helps to improve the smoothness of heat dissipation of the power module 300.

[0046] Specifically, the first space 103 and the second space 104 are connected through the heat dissipation space 105. When the power module 300 is working, the heat generated accumulates in the heat dissipation space 105 and is transferred upward to the top of the first space 103. Then, the hot air is discharged from the housing 100 through the suction effect of the heat dissipation component located at the top of the first space 103.

[0047] In this embodiment, the mobile DC charging pile divides the inner cavity of the housing 100 into a first space 103 for heat dissipation and a second space 104 for wiring installation. This helps maintain the neatness of the power module 300 during installation, facilitating subsequent maintenance or disassembly. It also helps to achieve rapid heat dissipation of the power module 300. Specifically, the hot air generated by the power module 300 during operation accumulates in the heat dissipation space 105 and floats upward on its own. Under the guidance of the heat dissipation component, the hot air will accelerate upward flow and be discharged from the housing 100 through the vent 102. This allows the mobile DC charging pile to meet the user's needs in smaller application scenarios such as indoors, while also ensuring the heat dissipation performance of the small mobile DC charging pile.

[0048] Reference Figure 2 and Figure 3 In some embodiments, the mounting portion 200 includes two side plates 210, a back plate 220, a clamping member, and a supporting member. The horizontal ends of the side plates 210 are connected to the inner sidewalls of the housing 100, and the vertical ends of the side plates 210 are connected to the inner wall of the housing located on the side of the air inlet 101. The back plate 220 is connected between the two side plates 210, and the outer sidewall of the back plate 220, together with the outer sidewalls of the two side plates 210 and the inner sidewall of the bottom of the housing 100, forms a heat dissipation space 105. The side plate 210 encloses and forms a receiving groove for accommodating the power module 300. The receiving groove is opposite to and communicates with the air inlet 101. The abutment is provided at the end of the back plate 220 near the air inlet 102. The abutment is used to limit the installation position of the power module 300 in the receiving groove. The support is provided at the end of the back plate 220 near the air inlet 101. The support is used to support the end of the power module 300 away from the abutment, so as to cooperate with the abutment to limit the power module 300 in the receiving groove.

[0049] The side plate 210 has an L-shaped longitudinal section and is detachably connected to the inner wall of the housing 100 by bolts and nuts. The back plate 220 is also detachably connected to the two side plates 210 by bolts and nuts. The accommodating groove formed between the back plate 220 and the two side plates 210 has one end opposite to and connected to the air inlet 101, and the other end opposite to the second space 104.

[0050] Specifically, in this embodiment, both the air inlet 101 and the ventilation opening 102 are detachable. When installing the power module 300, the worker can first open the air inlet 101 and then slide the power module 300 into the receiving groove, so that the end of the power module 300 that slides into the receiving groove is pressed against the abutment. At this time, the power module 300 is fully supported in the receiving groove. Then, the support member is used to limit the end of the power module 300 away from the abutment, thereby achieving stable installation of the power module 300.

[0051] In this embodiment, the cooperation between the clamping part and the support part facilitates workers to quickly install and disassemble the power module 300, thereby facilitating the subsequent inspection and maintenance of the power module 300.

[0052] Reference Figure 2 and Figure 3 In some embodiments, the end of the back panel 220 away from the air inlet 101 protrudes from the wiring board 422, and the abutment includes an abutment plate 230, which is connected to the end of the back panel 220 away from the air inlet 101.

[0053] The abutment plate 230 is horizontally positioned and is detachably connected to the top of the back plate 220 by bolts and nuts. The receiving groove is located below the abutment plate 230, and the heat dissipation component is located above the abutment plate 230.

[0054] Specifically, the abutment plate 230 is also provided with a plurality of heat dissipation holes 232, so that when the power module 300 is placed in the receiving groove, the heat generated by the power module 300 during operation can be partially transferred upward through the heat dissipation holes 232 to the heat sink, so that it can be quickly discharged outside the housing 100 under the suction action of the heat sink.

[0055] Reference Figure 2 and Figure 3 In some embodiments, the support includes two support rods 240, one of which is located near the bottom end of one of the side plates 210, and the other is located near the bottom end of the other side plate 210. The support rods 240 are detachably connected to the back plate 220.

[0056] Both support rods 240 extend horizontally. One end of the support rod 240 is detachably connected to the side wall of the back plate 220 by bolts and nuts. One end of the support rod 240 abuts against the inner side wall of the housing 100. The two support rods 240 are located on both sides of the air inlet 101 to ensure smooth air intake.

[0057] In this embodiment, the end of the power module 300 away from the abutment plate 230 is supported by two support rods 240. The structure is simple and helps to save the manufacturing cost of the mobile DC charging pile without affecting the ventilation of the air inlet 101.

[0058] Reference Figure 2 and Figure 3 In some embodiments, there are two vents 102, one of which is located above one of the side plates 210 and the other is located above the other side plate 210. The heat sink includes at least one cooling fan, and the cooling fan is configured in a one-to-one correspondence with the vent 102.

[0059] Specifically, in this embodiment, the ventilation openings 102 are opened on the side wall of the housing 100 along its own width direction, that is, the two ventilation openings 102 are arranged opposite each other. Through the cooperation of the two sets of ventilation openings 102 and the cooling fan, the heat dissipation effect of the housing 100 can be accelerated, thereby helping to further improve the heat dissipation performance of the mobile DC charging pile of this application.

[0060] Reference Figures 2 to 4 In some embodiments, the mobile DC charging pile further includes a heat dissipation section 400, which is disposed in the first space 103 and is located above and connected to the mounting section 200. The heat dissipation section 400 is connected to the receiving groove and the ventilation port 102. The heat dissipation section 400 is provided with a first wiring port 402 for wiring connected to the heat dissipation component to pass through and a second wiring port for connecting the power module 300 to the plug-in wiring.

[0061] Specifically, the electrical components in the second space 104 are control components used to control the charging power and operating status of the power module 300. The control components are connected to the power module 300 through wires. In order to keep the power module 300 neat after installation, and also to facilitate the inspection and maintenance of the electrical components in the second space 104 after the panel 106 is removed, the electrical components are set in the second space 104, that is, the electrical components in the second space 104 are set opposite to the mounting part 200.

[0062] Reference Figures 2 to 4 In some embodiments, the heat dissipation unit 400 includes a connecting block 410, a receiving plate 420, two support frames 430, and a heat-conducting element 440. The connecting block 410 is disposed on the inner top wall of the housing 100. One end of the receiving plate 420 is connected to the side wall of the connecting block 410, and the other end of the receiving plate 420 extends horizontally with a wiring plate 422. The wiring plate 422 is located on the side of the receiving groove near the vent 102 to facilitate the installation of the power module 300 wiring terminals. The receiving plate 420 and the back plate 220 together divide the inner cavity of the housing 100 into a first space 103 and a second space 104. One support frame 430 is disposed on one side plate 210, and the other support frame 430 is disposed on the other side plate 210, and the support frame 430 is disposed opposite to the vent 102. The heat-conducting element 440 is disposed on the receiving plate 420 and is used to guide hot air.

[0063] The connecting block 410 is fixed to the inner top wall of the housing 100 by screws. The setting of the connecting block 410 helps to reduce the air duct space and facilitates volume compression, thereby helping to improve the efficiency of the heat sink in discharging hot air. One end of the receiving plate 420 is fixedly connected to the side wall of the connecting block 410, and the other end of the receiving plate 420 extends horizontally with a wiring plate 422. The second wiring port is set on the wiring plate 422. The wiring plate 422 is located above the receiving groove and is used to cooperate with the installation of the wiring terminals of the power module 300. The receiving plate 420 and the back plate 220 together form a whole that divides the inner cavity of the housing 100 into a first space 103 and a second space 104.

[0064] The support frame 430 is arranged in a rectangular frame shape. One support frame 430 is located near one of the vents 102 and above one of the side plates 210, and the other support frame 430 is located near another vent 102 and above another side plate 210. The top ends of both support frames 430 are fixedly connected to the inner top wall of the housing 100, and the bottom ends of both support frames 430 are fixedly connected to the inner side wall of the housing 100 through horizontally extending cross plates. One end of the connecting block 410 abuts against the side wall of one of the support frames 430, and the other end of the connecting block 410 abuts against the side wall of the other support frame 430. There are two first wiring ports 402. The first wiring ports 402 are arranged on the receiving plate 420, with one first wiring port 402 located near one of the vents 102 and the other first wiring port 402 located near the other vent 102.

[0065] In this embodiment, a heat-conducting component 440 is provided to guide the hot air inside the housing 100, allowing the hot air to be smoothly discharged from the ventilation openings 102 on both sides, thereby improving the heat dissipation efficiency of the mobile DC charging pile. The connection block 410, the receiving plate 420, and the support frame 430 work together to provide stable support for the heat-conducting component 440, thereby ensuring the stability of the power module 300 during heat dissipation.

[0066] Reference Figure 3 and Figure 4 In some embodiments, the heat-conducting component 440 includes two inclined heat-conducting plates 442 and a baffle 444. The heat-conducting plates 442 are connected to the connecting block 410, and the ends of the two heat-conducting plates 442 that are close to each other are connected. The ends of the two heat-conducting plates 442 that are far from each other are both extended upward toward the side of the vent 102 that is close to them. The first wiring port 402 is located between the corresponding vent 102 and the heat-conducting plate 442. The baffle 444 is disposed at the connection of the two heat-conducting plates 442, and the end of the baffle 444 that is far from the heat-conducting plates 442 extends toward the side of the receiving groove.

[0067] Specifically, the longitudinal section of the heat-conducting component 440 is Y-shaped. The heat-conducting plate 442 can be detachably connected to the inner wall of the receiving plate 420 by screws. The top wall of the baffle 444 is fixedly connected to the connection point of the two heat-conducting plates 442, and the two side walls of the baffle 444 are fixedly connected to or abut against the side walls of the receiving plate 420. The heat-conducting component 440 divides the first space 103 located above the abutting plate 230 into two small right-angled trapezoidal spaces. One first wiring port 402 communicates with one of the small spaces, and the other first wiring port 402 communicates with the other small space.

[0068] In this embodiment, the cooperation of the heat-conducting plate 442 and the baffle 444 can guide the hot air inside the housing 100, thereby ensuring that the hot air can be smoothly discharged from the vent 102, which helps to improve the heat dissipation efficiency of the mobile DC charging pile. It also has a simple structure and is easy to install.

[0069] Reference Figure 3 and Figure 4 In some embodiments, dustproof components are provided at both the air inlet 101 and the vent 102.

[0070] The dustproof component includes a dustproof net 500, which is disposed inside the housing 100 and is provided corresponding to the air inlet 101 or the ventilation opening 102.

[0071] Specifically, the dust filter 500 can be detachably connected to the inner wall of the housing 100 using screws, facilitating subsequent maintenance and replacement by workers. In addition, a mounting slot 107 for accommodating a cooling fan is detachably connected to the inner wall of the housing 100 on the side of the housing 100 near the heat conduction plate 442 using screws. The mounting slot 107 is opposite to and communicates with the dust filter 500.

[0072] In this embodiment, a dustproof component is provided to filter the air entering the housing 100 from the air inlet 101 or the vent 102, thereby reducing the possibility that the power module 300 inside the housing 100 may be affected by dust accumulation.

[0073] The mobile DC charging pile of this application divides the inner cavity of the housing 100 into a first space 103 for heat dissipation and a second space 104 for wiring installation. This helps maintain the neatness of the power module 300 during installation, facilitating subsequent maintenance and disassembly. It also helps to achieve rapid heat dissipation of the power module 300. Specifically, the hot air generated by the power module 300 during operation accumulates in the heat dissipation space 105 and floats upward on its own. With the cooperation of the heat dissipation component and the heat conduction component 440, the hot air will accelerate upward flow and be discharged from the housing 100 through the vent 102. This allows the mobile DC charging pile to meet the user's needs in smaller application scenarios such as indoors, while also helping to ensure the heat dissipation performance of the small mobile DC charging pile.

[0074] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A mobile DC charging station, characterized in that, The mobile DC charging station includes: The housing has an air inlet on one side or one end, and at least one ventilation opening is provided on the side wall of the housing away from the air inlet. The inner cavity of the housing is divided into a first space and a second space along a first direction. An installation part is disposed in the first space, and the installation part is located between the air inlet and the ventilation opening. The outer peripheral sidewall of the installation part and the inner wall of the housing enclose a heat dissipation space, and the heat dissipation space is connected to both the air inlet and the ventilation opening. The power module is located within the mounting section; A heat sink is disposed in the first space, the heat sink is opposite to and connected to the vent, and the heat sink is used to exhaust hot air from the heat dissipation space to the outside of the housing; The second space is used to accommodate the electrical components for assembling the power module.

2. The mobile DC charging pile according to claim 1, characterized in that, The mounting unit includes: Two side plates, the horizontal ends of which are connected to the inner wall of the housing, and the vertical ends of which are connected to the inner wall of the housing on the side of the air inlet; A back plate is connected between the two side plates. The outer wall of the back plate, the outer walls of the two side plates, and the inner wall of the bottom of the housing enclose the heat dissipation space. The back plate and the two side plates enclose a receiving slot for accommodating the power module. The receiving slot is opposite to and communicates with the air inlet. The second space is located on the side of the housing away from the receiving slot. An abutment is disposed at one end of the back plate near the vent, the abutment being used to define the installation position of the power module within the receiving groove; A support member is disposed at one end of the back panel near the air inlet. The support member is used to receive the end of the power module away from the abutment member, so as to cooperate with the abutment member to limit the power module in the receiving groove.

3. The mobile DC charging pile according to claim 2, characterized in that, The mobile DC charging pile also includes a heat dissipation unit, which is disposed in the first space and located above and connected to the mounting unit. The heat dissipation unit is connected to the receiving groove and the ventilation opening. The heat dissipation unit is provided with a first wiring port for the wiring connected to the heat dissipation component to pass through and a second wiring port for the plug-in wiring connected to the power module.

4. The mobile DC charging pile according to claim 3, characterized in that, The number of ventilation openings is two, one of which is located above one of the side panels and the other is located above the other side panel. The heat sink includes at least one cooling fan, and the cooling fan is arranged in a one-to-one correspondence with the ventilation opening.

5. The mobile DC charging pile according to claim 4, characterized in that, The heat dissipation unit includes: The connecting block is located on the inner top wall of the housing; A receiving plate, one end of which is connected to the side wall of the connecting block, and a wiring plate extending horizontally from the other end of the receiving plate. The wiring plate is located on the side of the receiving groove near the vent to facilitate the installation of the power module wiring terminals. The receiving plate and the back plate together form an integral structure that divides the inner cavity of the housing into the first space and the second space. Two support frames, one of which is disposed on one of the side plates and the other of which is disposed on the other side plate, and the support frames are disposed opposite to the vent. A heat-conducting element is disposed on the receiving plate, and the heat-conducting element is used to guide hot air.

6. The mobile DC charging pile according to claim 5, characterized in that, The heat-conducting component includes: Two inclined heat-conducting plates are connected at their near ends and extend upward toward the vent near themselves at their far ends. A baffle is provided at the connection between the two heat-conducting plates, and the end of the baffle away from the heat-conducting plates extends toward the receiving groove.

7. The mobile DC charging pile according to claim 5, characterized in that, The end of the back panel away from the air inlet protrudes from the wiring board, and the abutting member includes an abutting plate, which is connected to the end of the back panel away from the air inlet.

8. The mobile DC charging pile according to claim 7, characterized in that, The abutment plate has multiple heat dissipation holes running through it.

9. The mobile DC charging pile according to claim 2, characterized in that, The support member includes two support rods, one of which is located near the bottom end of one of the side plates and the other is located near the bottom end of the other side plate. The support rods are detachably connected to the back plate.

10. The mobile DC charging pile according to claim 1, characterized in that, Both the air inlet and the ventilation opening are equipped with dustproof components.

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