An integrated all-in-one direct current charging device

Abstract

The utility model relates to a direct current charging equipment technical field especially, and a kind of integrated direct current charging equipment including shell and module group, module group is installed in shell inside, shell provides electromagnetic shielding, mechanical protection and environment sealing etc. To module group function, and module group is integrated with power conversion module, charging control unit, intelligent monitoring module etc. Submodule, realize electric energy efficient conversion, charging process accurate control and operating state real-time monitoring etc. Core function, still include: heat sink, heat sink is detachably connected with shell inside, cooling pipe is installed in heat sink rear side;Cooling unit, cooling unit is located in shell inside. Through setting heat sink, cooling pipe, cooling unit, by adopting water cooling and air cooling two kinds of ways combination carries out heat dissipation, cooling pipe can better heat concentration point carries out heat dissipation, and air flow speed is improved by heat dissipation fan, improves the heat dissipation efficiency of device.

Description

Technical Field

[0001] This utility model relates to the field of DC charging equipment technology, and in particular to an integrated DC charging device. Background Technology

[0002] DC charging equipment is a charging device that provides DC power to electric vehicles, while an integrated charging pile is an intelligent device that integrates the functions of a charging cabinet, a charging pile, and a power distribution system.

[0003] In the prior art, according to Chinese patent application number 202322919920.0, a DC charging pile device is disclosed, which includes a shell. The shell is equipped with a power module, a charging module, a wireless communication module, and a control module, and the power module, charging module, and wireless communication module are all electrically connected to the control module. An infrared temperature sensor and a photoelectric smoke detector are installed in the shell. This DC charging pile device uses the infrared temperature sensor to measure the surface temperature change of the components by sensing the infrared radiation energy on the surface of the internal components, including temperature parameters in the charging state and the non-operating state. When the detected temperature is too high, the cooling fan will be automatically activated to force heat dissipation, thereby achieving the purpose of heat dissipation and cooling, reducing the probability of electrical fire risk. At the same time, the photoelectric smoke detector detects smoke in the air to detect fire and issue an alarm in time.

[0004] In the prior art, according to Chinese patent application number 202322919920.0, a DC charging pile device is disclosed, which uses a cooling fan for heat dissipation. However, cooling fans are usually fixedly installed, which is not conducive to dissipating heat from concentrated points and affects the heat dissipation effect. To address this issue, we propose an integrated DC charging device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problem of the shortcomings of the prior art. According to Chinese patent application number 202322919920.0, a DC charging pile device is disclosed, which uses a cooling fan for heat dissipation. However, the cooling fan is usually fixed and is not conducive to heat dissipation at the heat concentration point, thus affecting the heat dissipation effect. Therefore, an integrated DC charging device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design an integrated DC charging device, including a housing and a module assembly. The housing has a quick-release rear cover and a top cover structure. The modular design improves the convenience of later maintenance. The module assembly is installed inside the housing, and the housing provides electromagnetic shielding, mechanical protection, and environmental sealing for the module assembly. The module assembly integrates sub-modules such as a power conversion module, a charging control unit, and an intelligent monitoring module. Through a high-density integrated layout, it achieves core functions such as efficient power conversion, precise control of the charging process, and real-time monitoring of operating status. It also includes: The heat sink is located at the rear of the module group and is detachably connected to the inner side of the outer shell. Cooling pipes are installed on the rear side of the heat sink to form a directional cooling channel that matches the heat source distribution of the module group. Efficient heat exchange is achieved through the circulation of heat-conducting medium, which not only ensures the stable operating temperature of the module group, but also facilitates the individual replacement of the heat sink components during later maintenance. The cooling unit is located inside the outer casing. It works in conjunction with the cooling pipes to dissipate heat from the module assembly. Through the directional flow of the circulating medium, a closed-loop heat exchange network covering the key heat-generating areas of the module assembly is constructed. This enables precise control and efficient dissipation of the concentrated heat generated during the operation of the charging module, ensuring that the equipment maintains a stable thermal balance under continuous high-load operation. At the same time, it reduces the overall thermal resistance of the system and improves heat dissipation efficiency.

[0007] Preferably, the cooling unit includes two cooling fans and an auxiliary fan. An L-shaped baffle is installed on the rear side of the heat sink, and the L-shaped baffle is detachably connected to the inner side of the housing. The cooling fans are located on the rear side of the cooling pipes and inside the L-shaped baffle. The cooling fans are mounted between the heat sink and the L-shaped baffle via a support frame. The upper side of the housing has two A-holes. The auxiliary fan is located above the cooling fans and is installed inside the housing, communicating with the A-holes. The lower side of the L-shaped baffle has a B-hole and two A-through holes. A heat exchanger and a water pump are located on the lower side, and the heat exchanger and water pump are installed inside the housing. The housing has a C-hole and a B-hole on both the left and right sides. The lower end of the cooling pipe is connected to the water pump outlet through the A-hole via a flexible hose. The heat exchanger inlet is connected to the upper end of the cooling pipe through the A-hole via a flexible hose. The heat exchanger outlet is connected to the water pump via a flexible hose. The other set of inlets and outlets of the heat exchanger are connected to the water source through the B-hole via flexible hoses. The water pump, auxiliary fan, and cooling fan are connected to the module group via wires.

[0008] By adopting the above structure and using a combination of air cooling and water cooling, the heat dissipation effect and efficiency of the device are improved.

[0009] Preferably, a protective shell is provided on the lower side of the L-shaped flow guide baffle, the heat exchanger and water pump are located inside the protective shell, and two through-pipe holes are provided on both the left and right sides of the protective shell. The protective shell is detachably and fixedly connected to the rear side of the heat sink and the inner side of the outer shell.

[0010] By adopting the above structure, the protective shell protects the heat exchanger and water pump, thereby increasing their service life.

[0011] Preferably, a protective plate is provided on the upper side of the outer shell, and a support shell is detachably and fixedly connected between the protective plate and the outer shell, and a D-shaped through hole is provided on the front side of the support shell.

[0012] By adopting the above structure, the hot air exhausted by the auxiliary fan can be smoothly discharged, and the probability of external debris and rainwater entering the equipment can be reduced.

[0013] Preferably, two support blocks are fixed between the protective plate and the front side of the support shell, and the support blocks are detachably and fixedly connected to the upper side of the shell.

[0014] By adopting the above structure, the support block supports the protective plate, thereby improving the stability of the device.

[0015] Preferably, the heat sink has two mounting holes on its rear side, and a filter screen is installed inside the mounting holes.

[0016] By adopting the above structure, the filter allows air to circulate within the module group and reduces the entry of dust, ensuring the cleanliness of the module group's operating environment.

[0017] The integrated DC charging device proposed in this utility model has the following advantages: 1. By setting up heat dissipation plates, cooling pipes, and cooling units, and by combining water cooling and air cooling, heat dissipation is achieved. The cooling pipes can better dissipate heat from concentrated heat points, and the cooling fan increases the airflow speed, thereby improving the heat dissipation efficiency of the device.

[0018] 2. By setting up auxiliary fans and L-shaped baffles, an airflow path of "bottom in, top out" is formed, allowing cold air to enter the equipment from the bottom, absorb heat, and then be discharged from the top, forming an efficient circulation. It can also force the discharge of hot air, reducing the accumulation of heat inside the equipment and improving heat dissipation efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the front side of an integrated DC charging device proposed in this utility model. Figure 2 This is a three-dimensional cross-sectional view of the rear side of an integrated DC charging device proposed in this utility model. Figure 3 This is a right-side cross-sectional three-dimensional structural diagram of an integrated DC charging device proposed in this utility model.

[0020] In the diagram: 1. Outer shell; 2. Module group; 3. Heat sink; 4. Cooling pipe; 5. Cooling unit; 51. Cooling fan; 52. Auxiliary fan; 53. L-shaped baffle; 54. Heat exchanger; 55. Water pump; 56. Protective shell; 57. Protective plate; 58. Support shell; 59. Support block; 6. Filter screen. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-3 An integrated DC charging device includes a housing 1 and a module group 2. The housing 1 has a quick-release rear cover and a top cover structure for subsequent maintenance. The modular disassembly and assembly design significantly improves the convenience of later maintenance. The module group 2 is installed inside the housing 1. Cables pass through the housing 1 and connect to the module group 2 to supply power to the charging gun. The housing 1 provides electromagnetic shielding, mechanical protection and environmental sealing for the module group 2. The module group 2 integrates sub-modules such as a power conversion module, a charging control unit, and an intelligent monitoring module. Through a high-density integrated layout, it achieves core functions such as efficient power conversion, precise control of the charging process and real-time monitoring of the operating status. It also includes a heat sink 3 and a cooling unit 5. The heat sink 3 is located on the rear side of module group 2. The heat sink 3 is detachably connected to the inner side of the outer shell 1. The heat sink 3 divides the outer shell 1 into two spaces. The front side of the heat sink 3 and the outer shell 1 form an installation space, in which module group 2 is installed. The rear side of the heat sink 3 and the outer shell 1 form a heat dissipation space, which is dedicated to thermal management. The rear side of the heat sink 3 is provided with two mounting holes, which allow the air in the installation space to communicate with the heat dissipation space, so that the air in the installation space can flow and transfer heat together with the heat sink 3. A filter screen 6 is installed inside the mounting holes. The filter screen 6 filters dust, making the air entering the installation space safer. A cooling pipe 4 is installed on the rear side of the heat sink 3. The cooling pipe 4 forms a directional cooling channel that matches the heat source distribution of module group 2. Efficient heat exchange is achieved through the circulation of heat conduction medium, which not only ensures the stable operating temperature of module group 2, but also facilitates the individual replacement of heat dissipation components during later maintenance. The cooling unit 5 is located inside the outer shell 1. The cooling unit 5 is used to work with the cooling pipe 4 to dissipate heat from the module group 2. Through the directional flow of the circulating medium, a closed-loop heat exchange network covering the key heat-generating areas of the module group 2 is constructed to achieve precise control and efficient diffusion of the concentrated heat generated during the operation of the charging module, ensuring that the equipment maintains a stable thermal balance under continuous high load operation, while reducing the overall thermal resistance of the system and improving heat dissipation efficiency. The cooling unit 5 includes two cooling fans 51 and an auxiliary fan 52. An L-shaped baffle 53 is installed on the rear side of the heat sink 3. The L-shaped baffle 53 is detachably connected to the inner side of the outer casing 1. The cooling fans 51 are located on the rear side of the cooling pipe 4 and the inner side of the L-shaped baffle 53, forming a directional airflow channel. The cooling fans 51 are installed between the heat sink 3 and the L-shaped baffle 53 by a support frame to ensure precise alignment with the heat exchange area of ​​the cooling pipe 4. Heat is transferred to the heat dissipation space through the heat sink 3. Then the heat dissipation medium flows in the cooling pipe 4 to absorb the heat transferred by the heat sink 3. Then the cooling fans 51 increase the airflow to dissipate heat from the cooling pipe 4. With the combined action of air cooling and water cooling, the heat dissipation efficiency is improved. Two A-holes are provided on the upper side of the outer casing 1. The auxiliary fan 52 is located above the cooling fan 51. The auxiliary fan 52 is installed inside the outer casing 1 and communicates with the A-holes. The auxiliary fan 52 will discharge air upward through the A-holes, forming a vertical airflow channel to directionally discharge hot air, forming a natural convection pattern of "bottom in, top out". Cool air enters the equipment from the bottom, absorbs heat and is discharged from the top, forming a high-efficiency circulation. It can also force the discharge of hot air, reducing the accumulation of heat inside the equipment and improving the heat dissipation efficiency. A protective plate 57 is provided on the upper side of the outer casing 1. The protective plate 57 and the outer casing 1 are connected... The protective plate 57 is detachably and fixedly connected to the support shell 58. The front end of the protective plate 57 extends beyond the front side of the support shell 58. Two support blocks 59 are fixed between the protective plate 57 and the front side of the support shell 58. The support blocks 59 are detachably and fixedly connected to the upper side of the outer shell 1. The support blocks 59 support the protective plate 57, making the protective plate 57 more stable. The protective plate 57 can block rainwater and reduce the probability of rainwater entering the heat dissipation space. The front side of the support shell 58 is provided with a D-through hole. The D-through hole is located at the top front side to ensure that the hot air discharged by the auxiliary fan 52 is smoothly discharged and to reduce the probability of external rainwater and debris entering the equipment. The lower side of the L-shaped flow guide baffle 53 has a B-through hole and two A-through holes. A heat exchanger 54 and a water pump 55 are located below the L-shaped flow guide baffle 53, installed inside the outer casing 1. A protective shell 56 is located below the L-shaped flow guide baffle 53, with the heat exchanger 54 and water pump 55 located inside the protective shell 56, forming an independent protective compartment for the heat exchange system. The protective shell 56 protects the heat exchanger 54 and water pump 55, improving their service life. Two through-holes are provided on both the left and right sides of the protective shell 56 for flexible hoses to pass through. The protective shell 56 is detachably and fixedly connected to the rear side of the heat sink 3 and the inner side of the outer casing 1. Both sides are provided with through holes C and through holes B. The lower end of the cooling pipe 4 is connected to the water outlet of the water pump 55 through the through hole A via a flexible hose. The inlet of the heat exchanger 54 is connected to the upper end of the cooling pipe 4 through the through hole A via a flexible hose. The outlet of the heat exchanger 54 is connected to the water pump 55 via a flexible hose, forming a circulation loop and creating a closed liquid cooling circulation main passage of "cooling pipe 4 → water pump 55 → heat exchanger 54". The other set of inlets and outlets of the heat exchanger 54 are connected to the water source through the through hole B via flexible hoses for heat exchange of the cooling medium in the cooling pipe 4. The water pump 55, auxiliary fan 52 and cooling fan 51 are connected to module group 2 via wires.

[0023] Operating principle: The heat exchanger 54 has two sets of inlets and outlets. One set is connected to the water pump 55 and the cooling pipe 4 to form a cooling circuit. Under the action of the water pump 55, the cooling medium flows in the cooling circuit. The other set is connected to an external water source. By cooling the water source, the water source can exchange heat with the cooling medium, ensuring the heat dissipation effect of the cooling medium. The water source can be circulated through the equipment. At the same time, under the action of the auxiliary fan 52, air will enter the space between the L-shaped flow guide baffle 53 and the outer shell 1 through the C-hole and the B-hole, and then be discharged through the auxiliary fan 52 and the A-hole. When the air flows, the cooling fan 51 increases the lateral airflow at the corresponding heat dissipation point, improving the heat dissipation efficiency.

[0024] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 on this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated DC charging device, comprising a housing (1) and a module group (2), wherein the housing (1) has a quick-release rear cover and a top cover structure, the module group (2) is installed inside the housing (1), and the housing (1) provides electromagnetic shielding, mechanical protection and environmental sealing for the module group (2), while the module group (2) integrates sub-modules such as a power conversion module, a charging control unit, and an intelligent monitoring module, and achieves core functions such as efficient power conversion, precise control of the charging process and real-time monitoring of the operating status through a high-density integrated layout, characterized in that, Also includes: Heat sink (3), the heat sink (3) is located on the rear side of module group (2), the heat sink (3) is detachably connected to the inner side of the outer shell (1), and a cooling pipe (4) is installed on the rear side of the heat sink (3). Cooling unit (5) is located inside the outer shell (1) and is used in conjunction with cooling pipe (4) to dissipate heat from module group (2).

2. The integrated DC charging device according to claim 1, characterized in that, The cooling unit (5) includes two cooling fans (51) and an auxiliary fan (52). An L-shaped baffle (53) is installed on the rear side of the heat sink (3). The L-shaped baffle (53) is detachably connected to the inner side of the outer shell (1). The cooling fans (51) are located on the rear side of the cooling pipe (4) and inside the L-shaped baffle (53). The cooling fans (51) are installed between the heat sink (3) and the L-shaped baffle (53) by a support frame. The upper side of the outer shell (1) is provided with two A-holes. The auxiliary fan (52) is located on the upper side of the cooling fans (51). The auxiliary fan (52) is installed inside the outer shell (1) and communicates with the A-holes. The lower side of the L-shaped baffle (53) is provided with a B-hole and two A-through holes. A heat exchanger (54) and a water pump (55) are provided on the lower side of the plate (53). The heat exchanger (54) and the water pump (55) are installed inside the outer casing (1). The outer casing (1) has a through hole (C) and a through hole (B) on both the left and right sides. The lower end of the cooling pipe (4) is connected to the outlet of the water pump (55) through the through hole (A) via a flexible hose. The inlet of the heat exchanger (54) is connected to the upper end of the cooling pipe (4) through the through hole (A) via a flexible hose. The outlet of the heat exchanger (54) is connected to the water pump (55) via a flexible hose. The other inlet and outlet of the heat exchanger (54) are connected to the water source through the through hole (B) via a flexible hose. The water pump (55), the auxiliary fan (52), and the cooling fan (51) are connected to the module group (2) via wires.

3. The integrated DC charging device according to claim 2, characterized in that, The L-shaped flow guide baffle (53) is provided with a protective shell (56) on the lower side. The heat exchanger (54) and water pump (55) are located inside the protective shell (56). The protective shell (56) is provided with two through-pipe holes on both the left and right sides. The protective shell (56) is detachably and fixedly connected to the rear side of the heat sink (3) and the inner side of the outer shell (1).

4. The integrated DC charging device according to claim 2, characterized in that, The outer shell (1) is provided with a protective plate (57) on the upper side. A support shell (58) is detachably and fixedly connected between the protective plate (57) and the outer shell (1). A D-through hole is provided on the front side of the support shell (58).

5. An integrated DC charging device according to claim 4, characterized in that, Two support blocks (59) are fixed between the front side of the protective plate (57) and the support shell (58), and the support blocks (59) are detachably and fixedly connected to the upper side of the shell (1).

6. The integrated DC charging device according to claim 1, characterized in that, The heat sink (3) has two mounting holes on its rear side, and a filter screen (6) is installed inside the mounting holes.

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