Internal structure of charging cabinet

Abstract

The utility model discloses an internal structure of a charging cabinet, and belongs to the technical field of structural design of charging cabinets. The charging cabinet comprises a charging cabinet body, wherein the interior of the charging cabinet body is divided into a front cabin and a rear cabin by a mounting plate; the rear cabin is divided into a left rear cabin and a right rear cabin by a separation plate; an AC / DC conversion module, a PCU power distribution unit and a direct current output visible window are sequentially arranged on the left side of the front cabin from top to bottom. A CMU control unit, a forecabin alternating current contactor, a forecabin leakage protection circuit breaker and a forecabin alternating current input conductor assembly are sequentially arranged on the right side of the forecabin from top to bottom. The left rear cabin is sequentially provided with a rear cabin alternating current contactor, a rear cabin leakage protection circuit breaker and a rear cabin alternating current input conductor assembly from top to bottom. On the basis that the use performance of the charging cabinet is not affected, through reasonable arrangement of the devices, reduction of the number of the devices, optimization of the structural design and reduction of the cost of the cabinet, the use convenience of a user can be met, the assembly efficiency can be improved, and the user experience can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging cabinet structure design and relates to an internal structure of a charging cabinet. Background Art

[0002] With growing global awareness of environmental protection and rapid advancements in new energy vehicle technology, electric vehicles have become a key trend in future mobility, directly driving the explosive growth of the charging pile industry. To cope with the growing number of electric vehicles, efficient and intelligent charging pile construction and installation are crucial. The market demands charging piles offer fast charging capabilities, shortened charging wait times, an enhanced user experience, and a harmonious blend with the surrounding environment, showcasing the dual appeal of technology and aesthetics. Furthermore, the rational layout of internal components not only impacts charging efficiency but also directly influences the charging pile's heat dissipation, ease of maintenance, and long-term operational stability. Given the scarcity of land resources, miniaturization and modularization of charging piles to reduce footprint and improve space utilization have become key development directions in the industry. Price, a key factor in consumer decision-making, is driving charging pile manufacturers to continuously explore the balance between cost control and technological innovation to provide more cost-effective products. Furthermore, user convenience, such as broad compatibility, is essential for enhancing the competitiveness of charging piles in the market.

[0003] The internal component layout of existing charging cabinets is relatively scattered, and many devices are used, resulting in high cost of the charging cabinets and inconvenience for customers to connect the wires. Utility Model Content

[0004] The purpose of the present utility model is to solve the technical problems in the prior art that the internal components of the charging cabinet are relatively scattered, a large number of devices are used, resulting in high cost of the charging cabinet and inconvenience for customers to connect the wires, and to provide an internal structure of the charging cabinet.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] In the first aspect, the utility model discloses an internal structure of a charging cabinet, including a charging cabinet body, wherein the interior of the charging cabinet body is divided into a front cabin and a rear cabin by a mounting plate; the rear cabin is divided into a left rear cabin and a right rear cabin by an isolation plate; the left side of the front cabin is provided with an AC / DC conversion module, a PCU power distribution unit and a DC output visual window in sequence from top to bottom; the right side of the front cabin is provided with a CMU control unit, a front cabin AC contactor, a front cabin leakage protection circuit breaker and a front cabin AC input conductor assembly in sequence from top to bottom; the left rear cabin is provided with a rear cabin AC contactor, a rear cabin leakage protection circuit breaker and a rear cabin AC input conductor assembly in sequence from top to bottom; the left side of the front cabin is arranged opposite to the right rear cabin, and the right side of the front cabin is arranged opposite to the left rear cabin; the front side of the AC / DC conversion module is arranged in the front cabin, and the back output port is arranged in the right rear cabin; the positive pole of the PCU power distribution unit is arranged in the front cabin, and the negative pole is arranged in the right rear cabin; and a number of fans are arranged on the doors of the left and right rear cabins.

[0007] The further improvement of the present invention is:

[0008] A front door magnetic switch and a fan control panel are arranged at the top of the right side of the front cabin; and a rear cabin door magnetic switch is arranged at the top of the left rear cabin.

[0009] The fan is an axial flow fan.

[0010] The right front door of the front cabin is provided with an emergency stop switch, an indicator light assembly, a centralized control box assembly and a right front door assembly.

[0011] The left side wall of the charging cabinet is provided with a front compartment I / O board assembly, a rear compartment I / O board assembly and a fan control terminal block.

[0012] The left rear cabin side wall is provided with a rear cabin lightning protection component, a rear cabin air switch component and a terminal power supply terminal block.

[0013] The right side wall of the front cabin is provided with a first auxiliary source, a diode assembly, a second auxiliary source, an auxiliary source air switch assembly, a front cabin lightning protection switch assembly and a front cabin air switch assembly.

[0014] The rear cabin lightning protection assembly, the rear cabin air switch assembly, the auxiliary source air switch assembly, the front cabin lightning protection switch assembly and the front cabin air switch assembly are all installed using guide rails.

[0015] The front cabin leakage protection circuit breaker, the rear cabin leakage protection circuit breaker, the front cabin AC contactor and the rear cabin AC input conductor assembly adopt a bottom-in and top-out wiring method.

[0016] 20 AC / DC conversion modules are arranged on the left side of the front cabin and are divided into two layers, upper and lower, and installed on the mounting plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model discloses an internal structure of a charging cabinet, in which the interior of the charging cabinet is divided into a front compartment and a rear compartment by a mounting plate, and the rear compartment is further divided into a left rear compartment and a right rear compartment by an isolation plate. On the one hand, without affecting the performance of the charging cabinet, the number of components is reduced, the structural design is optimized, and the cost of the cabinet is reduced through reasonable layout of components; on the other hand, the charged components and electrical components inside the cabinet are distributed in different areas through the compartment layout. This assembly method is not only convenient for customers to connect wires, but also has an aesthetically pleasing layout of components and is conducive to heat dissipation. The utility model can not only meet the convenience of user use, but also improve assembly efficiency and enhance user experience.

[0019] Furthermore, multiple axial flow fans are used instead of centrifugal fans, which simplifies the installation of the fans and reduces the noise of the whole machine. In addition, axial flow fans are cheap, which reduces the cost of the whole machine.

[0020] Furthermore, a front door magnetic switch is provided at the top right of the front cabin, and a rear cabin door magnetic switch is provided at the top left rear cabin. When the right front door or the left rear door is opened, all internal high-voltage components are powered off to prevent the risk of electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a front structural diagram of the internal structure of a charging cabinet in the present utility model;

[0023] Figure 2 This is a schematic diagram of the back structure of the internal structure of a charging cabinet in the present utility model;

[0024] Figure 3 This is a schematic diagram of the interior of the left side wall of the internal structure of a charging cabinet in the present invention;

[0025] Figure 4 This is a schematic diagram of the interior of the right side wall of the internal structure of a charging cabinet in the present invention.

[0026] The following components are included: 1. Left front door assembly; 2. DC output viewing window; 3. PCU power distribution unit; 4. AC / DC converter module; 5. Front cabin AC input conductor assembly; 6. Front cabin leakage protection circuit breaker; 7. Front cabin AC contactor; 8. CMU control unit; 9. Front door magnetic switch; 10. Fan control panel; 11. Emergency stop switch; 12. Indicator light assembly; 13. Centralized control box assembly; 14. Right front door assembly; 15. Left rear door assembly; 16. Rear cabin AC input conductor assembly; 17. Rear cabin leakage protection circuit breaker ; 18. Rear cabin AC contactor; 19. Left rear door fan; 20. Rear cabin door magnetic switch; 21. Right rear door fan; 22. Right rear door assembly; 23. Front cabin I / O board assembly; 24. Fan control terminal block; 25. Rear cabin I / O board assembly; 26. Terminal power supply terminal block; 27. Rear cabin air switch assembly; 28. Rear cabin lightning protection assembly; 29. First auxiliary source; 30. Diode assembly; 31. Second auxiliary source; 32. Auxiliary source air switch assembly; 33. Front cabin lightning protection switch assembly; 34. Front cabin air switch assembly. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] The present invention is described in further detail below with reference to the accompanying drawings:

[0034] See also Figure 1 The present invention discloses an internal structure of a charging cabinet, comprising a charging cabinet body, the interior of which is divided into a front compartment and a rear compartment by a mounting plate; the rear compartment is divided into a left rear compartment and a right rear compartment by a partition plate; the left side of the front compartment is provided with, from top to bottom, an AC / DC converter module 4, a PCU power distribution unit 3, and a DC output viewing window 2; the left side of the front compartment is provided with 20 AC / DC converter modules 4, mounted in two layers on the mounting plate; the right side of the front compartment is provided with, from top to bottom, a front door magnetic switch 9, a fan control panel 10, a CMU control unit 8, a front compartment AC contactor 7, a front compartment leakage protection circuit breaker 6, and a front compartment AC input conductor assembly 5; the right front door of the front compartment is provided with an emergency stop switch 11, an indicator light assembly 12, a centralized control box assembly 13, and a right front door assembly 14. The front compartment leakage protection circuit breaker 6, the rear compartment leakage protection circuit breaker 17, the front compartment AC contactor 7, and the rear compartment AC input conductor assembly 16 adopt a bottom-in, top-out wiring method.

[0035] See also Figure 2The left rear compartment is equipped, from top to bottom, with a rear compartment door magnetic switch 20, a rear compartment AC contactor 18, a rear compartment leakage circuit breaker 17, and a rear compartment AC input conductor assembly 16. The left side of the front compartment is opposite the right rear compartment, and the right side of the front compartment is opposite the left rear compartment. The front of the AC / DC converter module 4 is located in the front compartment, and the rear output port is located in the right rear compartment. The positive terminal of the PCU power distribution unit 3 is located in the front compartment, and the negative terminal is located in the right rear compartment. Axial fans are installed on the doors of both the left and right rear compartments. Using multiple axial fans instead of centrifugal fans simplifies fan installation and reduces overall noise. Axial fans are also inexpensive, reducing overall cost. The left wall of the charger cabinet is equipped with a front compartment I / O board assembly 23, a rear compartment I / O board assembly 25, and a fan control terminal block 24. The left rear compartment sidewall is equipped with a rear compartment lightning protection assembly 28, a rear compartment air switch assembly 27, and a terminal power supply terminal block 26.

[0036] See also Figure 3 The left side wall of the charging cabinet is provided with a front cabin I / O board assembly 23, a rear cabin I / O board assembly 25 and a fan control terminal block 24. The left side wall of the charging cabinet refers to the left side wall of the cabinet when the user is directly in front of the charging cabinet.

[0037] See also Figure 4 The left rear compartment sidewall is equipped with a rear compartment lightning protection assembly 28, a rear compartment air switch assembly 27, and a terminal power supply terminal block 26. The right sidewall of the front compartment is equipped with a first auxiliary power supply 29, a diode assembly 30, a second auxiliary power supply 31, an auxiliary power supply air switch assembly 32, a front compartment lightning protection switch assembly 33, and a front compartment air switch assembly 34. The rear compartment lightning protection assembly 28, rear compartment air switch assembly 27, auxiliary power supply air switch assembly 32, front compartment lightning protection switch assembly 33, and front compartment air switch assembly 34 are all mounted on guide rails.

[0038] The utility model discloses an internal structure of a charging cabinet, in which the interior of the charging cabinet is divided into a front compartment and a rear compartment by a mounting plate, and the rear compartment is further divided into a left rear compartment and a right rear compartment by an isolation plate. On the one hand, without affecting the performance of the charging cabinet, the number of components is reduced, the structural design is optimized, and the cost of the cabinet is reduced through reasonable layout of components; on the other hand, the charged components and electrical components inside the cabinet are distributed in different areas through the compartment layout. This assembly method is not only convenient for customers to connect wires, but also has an aesthetically pleasing layout of components and is conducive to heat dissipation. The utility model can not only meet the convenience of user use, but also improve assembly efficiency and enhance user experience.

[0039] The working principle of this utility model is as follows:

[0040] 1. The charging cabinet's component compartment layout is divided into front and rear compartments. The front compartment area is the interior area after the left front door assembly 1 and the right front door assembly 14 are opened. The front and rear compartments are separated by a component mounting plate. The rear compartment area is the area after the left rear door assembly 15 and the right rear door assembly 22 are opened. A partition plate is installed between the two rear compartments, dividing the left and right rear compartments. This compartment layout makes the overall layout neat and beautiful. It also effectively reduces heat exchange during cabinet operation and increases the service life of components.

[0041] The left front door assembly 1 is mainly fixed to the cabinet body with a hinge; the DC output visual window 2 is made of transparent PC sheet, which can not only intuitively show the internal wiring position, but also effectively insulate. It is fixed to the cabinet frame with screws. The PCU power distribution unit 3 adopts a modular installation design, which is divided into positive and negative levels inside. The positive pole faces the front of the cabinet and the negative pole faces the back of the cabinet. When installed, it is placed on the bracket set inside the cabinet. There are a total of 20 AC / DC conversion modules 4, which are divided into upper and lower layers and inserted into the guide installation bracket designed inside the cabinet. The front of the module faces the front door of the cabinet. The entire front area of the module is the front cabin, and the output port on the back of the module is located in the rear cabin of the cabinet.

[0042] One end of the front cabin AC input conductor assembly 5 is connected to the front cabin leakage protection circuit breaker 6 and fixed with bolts. The other end is reserved for the customer's AC input interface. The front cabin AC contactor 7 is also connected to the front cabin leakage protection circuit breaker 6 through the front cabin AC input conductor 5. The CMU control unit 8 is fixed to the mounting plate inside the cabinet with screws. It mainly controls the host software bare metal function and is powered by the auxiliary power supply 29. The front door magnetic switch 9 is installed on the top of the right front door frame of the cabinet and fixed with bolts. When the front door is opened, all internal high-voltage components are de-energized to prevent the risk of electric shock.

[0043] The fan control panel 10 is bolted to the internal component mounting plate of the cabinet. Its main function is to control the partition and speed of the left rear door fan 19 and the right rear door fan 21. The emergency stop switch 11 is installed on the right front door assembly 14 of the cabinet and is mainly used to power off the entire machine in an emergency. The indicator light assembly 12 is screwed to the right front door assembly 14 and its main function is to display the status of the entire machine to the outside world. The centralized control box assembly 13 is bolted to the right front door assembly 14. Its main function is to communicate with the outside world. The right front door assembly 14 is fixed to the cabinet body with a hinge.

[0044] The left rear door assembly 15 is hinged to the cabinet body and is equipped with a left rear door fan 19. The rear cabin AC input conductor assembly 16, rear cabin leakage protection circuit breaker 17, and rear cabin AC contactor 18 are connected in the same manner as the corresponding conductors and components in the front cabin. The rear cabin door magnetic switch 20 has the same function as the front cabin door magnetic switch 9. The right rear door fan 21 is bolted to the right rear door assembly 22 and its main function is to dissipate heat from the entire machine.

[0045] The front cabin I / O board assembly 23 is fixed on the left side wall of the front cabin of the cabinet with bolts. Its main function is to communicate the positive pole of the PCU power distribution unit 3 with the whole system, and it is powered by the auxiliary source 29; the fan control terminal block 24 is installed on the right rear cabin guide rail of the cabinet, and its function is to connect the right rear door fan 21 with the fan control board 10; the rear cabin I / O board assembly 25 is fixed on the right side wall of the rear cabin of the cabinet with bolts. Its main function is to communicate the negative pole of the PCU power distribution unit 3 with the whole system, and it is powered by the auxiliary source 29; the terminal power supply terminal block 26 is installed on the guide rail of the cabinet side wall of the left rear cabin of the cabinet, and it is mainly used for the host and Communication and signal power supply before the terminal; the rear cabin air switch assembly 27 and the rear cabin lightning protection assembly 28 are both installed on the left rear cabin side wall of the cabinet with guide rails, and their function is to provide surge protection for the entire machine; the auxiliary source 29 is installed on the right side wall of the front cabin of the cabinet and fixed with screws, mainly to power the control devices; the diode assembly 30 is installed between the first auxiliary source 29 and the second auxiliary source 31 to prevent the danger caused by current backflow; the auxiliary source air switch assembly 32 is installed with a guide rail, and its main function is to control the opening and closing of the auxiliary source power supply; the front cabin lightning protection switch assembly 33 and the front cabin air switch assembly 34 are also installed with guide rails, and their function is surge protection.

[0046] 2. This DC charger uses 380V industrial power, a three-phase, five-wire system. The AC input cables connect to the reserved interfaces of the front compartment AC input conductor assembly 5 and the front compartment AC input conductor assembly 16. The AC input components are arranged in the same area of the entire unit. They include two front compartment leakage protection circuit breakers 6, two front compartment AC contactors 7, two front compartment AC input conductor assemblies 5, and two rear compartment leakage protection circuit breakers 17, two rear compartment AC contactors 18, and two rear compartment AC input conductor assemblies 16. The leakage protection circuit breakers use a back-to-back wiring arrangement, with two inputs at the front and two at the rear. This layout meets both the cabinet charging power requirements and our company's power star-ring distribution requirements. Furthermore, this component layout makes the AC input convenient for customers to connect on-site.

[0047] 3. The front compartment leakage protection circuit breaker 6, rear compartment leakage protection circuit breaker 17, front compartment AC contactor 7, and rear compartment AC input conductor assembly 16 utilize a bottom-in, top-out wiring arrangement, reducing conductor length, saving layout space, and lowering overall system cost. The front compartment leakage protection circuit breaker 6 and the front compartment AC contactor 7 are connected by conductors, while the rear compartment leakage protection circuit breaker 17 and the rear compartment AC input conductor assembly 16 are connected by conductors. This layout of the leakage protection circuit breakers and AC contactors improves overall system space utilization and creates a more compact structure.

[0048] 4. The AC / DC conversion module 4 and the PCU power distribution unit 3, the AC / DC conversion module 4 and the front cabin AC contactor 7, and the rear cabin AC input conductor assembly 16 are all connected through copper cables.

[0049] Industrial electricity is connected to the AC input port of the AC / DC conversion module 4 through the devices in the AC input area. The AC power is converted into DC power through the conversion of the AC / DC conversion module 4. The DC output port of the AC / DC conversion module 4 is connected to the PCU power distribution unit 3 through a copper cable. The DC output copper bus of the DC output visual window 2 is connected to the terminal through a copper cable. The PCU power distribution unit 3 distributes the output power of each gun of the terminal.

[0050] 5. This DC charger features axial flow fans in the right rear door assembly 22 and the left rear door assembly 15. The left rear door fan 19 dissipates heat from AC input components, while the right rear door fan 21 dissipates heat from components and cables in the AC / DC converter module 4 and PCU power distribution unit 3. Using multiple axial flow fans instead of centrifugal fans simplifies installation and reduces overall noise. Axial flow fans are also inexpensive, reducing overall cost.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An internal structure of a charging cabinet, characterized in that: The invention comprises a charging cabinet, wherein the interior of the charging cabinet is divided into a front compartment and a rear compartment by a mounting plate; the rear compartment is divided into a left rear compartment and a right rear compartment by an isolation plate; the left side of the front compartment is provided with an AC / DC conversion module (4), a PCU power distribution unit (3) and a DC output visual window (2) in sequence from top to bottom; the right side of the front compartment is provided with a CMU control unit (8), a front compartment AC contactor (7), a front compartment leakage protection circuit breaker (6) and a front compartment AC input conductor assembly (5) in sequence from top to bottom; the left rear compartment is provided with a DC / DC conversion module (4), a PCU power distribution unit (3) and a DC output visual window (2) in sequence from top to bottom; the right side of the front compartment is provided with a CMU control unit (8), a front compartment AC contactor (7), a front compartment leakage protection circuit breaker (6) and a front compartment AC input conductor assembly (5) in sequence from top to bottom; the left rear compartment is provided with a DC / DC conversion module (4), a PCU power distribution unit (3) and a DC output visual window (2) in sequence from top to bottom; the left side of the front ... A rear cabin AC contactor (18), a rear cabin leakage protection circuit breaker (17) and a rear cabin AC input conductor assembly (16) are sequentially arranged from top to bottom; the left side of the front cabin is arranged opposite to the right rear cabin, and the right side of the front cabin is arranged opposite to the left rear cabin; the front side of the AC / DC conversion module (4) is arranged in the front cabin, and the rear output port is arranged in the right rear cabin; the positive pole of the PCU power distribution unit (3) is arranged in the front cabin, and the negative pole is arranged in the right rear cabin; and a plurality of fans are arranged on the doors of the left rear cabin and the right rear cabin.

2. The internal structure of the charging cabinet according to claim 1, characterized in that: A front door magnetic switch (9) and a fan control panel (10) are arranged at the top of the right side of the front cabin; and a rear cabin door magnetic switch (20) is arranged at the top of the left rear cabin.

3. The internal structure of the charging cabinet according to claim 1, characterized in that: The fan is an axial flow fan.

4. The internal structure of the charging cabinet according to claim 1, characterized in that: The right front door of the front cabin is provided with an emergency stop switch (11), an indicator light assembly (12), a centralized control box assembly (13) and a right front door assembly (14).

5. The internal structure of the charging cabinet according to claim 1, characterized in that: A front compartment I / O board assembly (23), a rear compartment I / O board assembly (25) and a fan control terminal block (24) are provided on the left side wall of the charging cabinet.

6. The internal structure of the charging cabinet according to claim 1, characterized in that: The left rear cabin side wall is provided with a rear cabin lightning protection component (28), a rear cabin air switch component (27) and a terminal power supply terminal block (26).

7. The internal structure of the charging cabinet according to claim 6, characterized in that: The right side wall of the front cabin is provided with a first auxiliary source (29), a diode assembly (30), a second auxiliary source (31), an auxiliary source air switch assembly (32), a front cabin lightning protection switch assembly (33) and a front cabin air switch assembly (34).

8. The internal structure of the charging cabinet according to claim 7, characterized in that: The rear cabin lightning protection assembly (28), the rear cabin air switch assembly (27), the auxiliary source air switch assembly (32), the front cabin lightning protection switch assembly (33) and the front cabin air switch assembly (34) are all installed using guide rails.

9. The internal structure of the charging cabinet according to claim 1, characterized in that: The front cabin leakage protection circuit breaker (6), the rear cabin leakage protection circuit breaker (17), the front cabin AC contactor (7) and the rear cabin AC input conductor assembly (16) adopt a bottom-in and top-out wiring method.

10. The internal structure of the charging cabinet according to claim 1, characterized in that: The left side of the front cabin is provided with 20 AC / DC conversion modules (4), which are divided into upper and lower layers and installed on the mounting plate.

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