An electrical control cabinet and a mobile power supply device

Abstract

This application relates to the field of power supply equipment technology, and discloses an electrical control cabinet and a mobile power supply device. The electrical control cabinet includes a housing, which is divided into a lower cabinet, a middle cabinet, and an upper cabinet along a first direction. The lower cabinet houses AC power distribution components; the middle cabinet houses low-voltage electrical components and communication electrical components; and the upper cabinet houses DC high-voltage electrical components. The exterior of the middle cabinet forms a wiring outlet space in a second direction. This application divides the electrical control cabinet housing into lower, middle, and upper cabinets, and places the DC high-voltage electrical components, including the transformer, in the upper cabinet, thus reducing electromagnetic interference caused by the transformer to the electrical components in the lower cabinet and ensuring the normal operation of the electrical control cabinet. Furthermore, along the second direction of the housing, the length of the middle cabinet is shorter than the length of the upper cabinet, allowing wiring to enter and exit from the bottom of the upper cabinet, facilitating wiring routing and improving the waterproofing effect of the wiring.

Description

Technical Field

[0001] This application relates to the field of power supply equipment technology, specifically to an electrical control cabinet and a mobile power supply device. Background Technology

[0002] Power supply vehicles, as mobile power supply equipment, are widely used due to their ease of deployment and power supply. Conventional power supply vehicles typically feature a side-opening control cabinet design for convenient operation and maintenance.

[0003] However, when the power supply vehicle adopts a rear-door layout, the existing electrical control cabinet structure design is limited. Electromagnetic interference generated by the transformer inside the cabinet can easily threaten the normal operation of other components. Furthermore, electrical control cabinets generally use a rear-mounted wiring method, making it difficult to implement wiring routing and waterproofing. Utility Model Content

[0004] In view of this, this application provides an electrical control cabinet and a mobile power supply device to solve or improve the problems of transformers in the electrical control cabinet affecting the normal operation of other components when the power supply vehicle adopts a rear door layout, as well as the problems of existing electrical control cabinets being inconvenient for wiring and waterproofing.

[0005] In a first aspect, this application provides an electrical control cabinet, including a housing, which is sequentially divided into a lower cabinet, a middle cabinet, and an upper cabinet along a first direction. The lower cabinet houses AC power distribution components; the middle cabinet houses low-voltage electrical components and communication electrical components; and the upper cabinet houses DC high-voltage electrical components. The length of the middle cabinet along a second direction of the housing is less than the length of the upper cabinet along the second direction, creating a wiring outlet space on the exterior of the middle cabinet in the second direction. The bottom surface of the upper cabinet has a wiring outlet corresponding to the wiring outlet space, and the wiring of the upper cabinet passes through the wiring outlet and extends into the wiring outlet space.

[0006] Beneficial effects: This application divides the electrical control cabinet into a lower cabinet, a middle cabinet, and an upper cabinet. The DC high-voltage electrical components, including the transformer, are arranged in the upper cabinet. The upper and lower cabinets are separated by the middle cabinet, reducing electromagnetic interference caused by the transformer to the electrical components in the lower cabinet and ensuring the normal operation of the electrical control cabinet. Furthermore, along the second direction of the cabinet, the length of the middle cabinet is shorter than that of the upper cabinet, allowing wiring to enter and exit from the bottom of the upper cabinet, thus facilitating wiring routing and improving the waterproofing of wiring passing through the upper cabinet.

[0007] In one optional embodiment, an EMS display screen is provided on the lower cabinet, and the communication electrical components are communicatively connected to the EMS display screen.

[0008] Beneficial effects: Placing the display screen, which can show key operating parameters of the energy management system in real time, in the lower cabinet facilitates observation and operation by maintenance personnel. Furthermore, the EMS display screen is separated from the transformer located in the upper cabinet by the middle cabinet, reducing the space occupied by the control cabinet and effectively reducing electromagnetic interference from the transformer to the EMS display screen, ensuring its normal operation.

[0009] In one optional embodiment, the AC power distribution components include at least one AC circuit breaker, an AC bus, and multiple connectors. Each AC circuit breaker is used to connect to the AC output terminal of a power conversion system; the AC bus is electrically connected to all the AC circuit breakers; and the multiple connectors are electrically connected to the AC bus.

[0010] Beneficial effects: By using AC circuit breakers, AC busbars, and multiple connectors, AC power can be supplied externally, and reverse charging can also be achieved through connectors. Furthermore, the aforementioned electrical components are located in the lower cabinet, separated from the transformer located in the upper cabinet by the middle cabinet, effectively reducing electromagnetic interference from the transformer to the AC power distribution components and ensuring their normal operation.

[0011] In one alternative embodiment, the DC high-voltage electrical components include a DC busbar and a transformer. The DC busbar is electrically connected to the DC line of the power conversion system; the transformer has an input terminal and an output terminal, the input terminal of the transformer is electrically connected to the AC busbar, and the output terminal of the transformer extends into the middle cabinet through the outgoing line space.

[0012] Beneficial effects: Electrical connection between the DC busbar and the power conversion system significantly reduces line losses and voltage drops during DC current transmission. The transformer is located in the upper cabinet, achieving physical isolation from the AC power distribution components in the lower cabinet, reducing electromagnetic interference from the transformer to these components. Furthermore, the transformer's location in the upper cabinet provides a greater distance between maintenance personnel and the transformer when performing maintenance on components in the lower and middle cabinets, reducing the risk of electric shock and improving operational safety.

[0013] In one optional embodiment, the low-voltage electrical components include a low-voltage circuit breaker, a terminal block, a relay, and a socket. The low-voltage circuit breaker is used to connect to an external control power supply; the terminal block is electrically connected to the low-voltage circuit breaker; the relay is electrically connected to the low-voltage circuit breaker; and the socket is electrically connected to the output terminal of the transformer.

[0014] Beneficial effects: Placing low-voltage electrical components requiring frequent maintenance in the middle cabinet facilitates debugging and repair work for maintenance personnel, improving work efficiency. Furthermore, by arranging transformers and low-voltage electrical components in different cabinets, physical isolation between them is achieved, reducing the risk of electric shock for maintenance personnel during wiring, debugging, or testing, and improving operational safety.

[0015] In one alternative embodiment, the side wall of the lower cabinet is provided with a heat dissipation channel; and / or, the side wall of the middle cabinet is provided with a heat dissipation channel; and / or, the side wall of the upper cabinet is provided with a heat dissipation channel.

[0016] Beneficial effects: According to actual needs, heat dissipation channels are set in the lower, middle and upper cabinets to improve the heat dissipation efficiency of the components inside the cabinet and maintain the normal operation of the components.

[0017] In one optional embodiment, the lower cabinet, the middle cabinet, and the upper cabinet are each provided with cabinet doors.

[0018] Beneficial effects: By setting up separate cabinet doors on each cabinet, maintenance personnel can open the cabinet corresponding to the component to be maintained separately when maintaining different components, reducing the scope of operation. In addition, the cabinet doors on other layers are kept closed, achieving safety isolation and further reducing the risk of electric shock to maintenance personnel.

[0019] In one optional embodiment, a cable tie is provided on the cable outlet on the bottom surface of the upper cabinet, and the cables inside the upper cabinet are routed through the cable tie.

[0020] Beneficial effects: Placing cable bundlers at the cable exits helps to constrain and guide the cables, facilitating cable routing. Simultaneously, the cable bundlers can seal the cable exits, improving their waterproof performance and consequently enhancing the waterproof performance of the upper cabinets.

[0021] Secondly, this application provides a mobile power supply device, including a vehicle, an energy storage device, and an electrical control cabinet as described in any one of the above. The vehicle includes a carriage; the energy storage device is disposed within the carriage; the electrical control cabinet is disposed within the carriage and electrically connected to the energy storage device.

[0022] Beneficial Effects: This mobile power supply equipment features the aforementioned electrical control cabinet, which has a compact structure and occupies a small area within the vehicle, meeting the design and usage requirements of electrical control cabinets. Furthermore, the DC high-voltage electrical components, including the transformer, are located in the upper cabinet, while the AC power distribution components, which are susceptible to electromagnetic interference from the transformer, are located in the lower cabinet. The upper and lower cabinets are physically isolated by a middle cabinet, mitigating electromagnetic interference caused by the transformer to the AC power distribution components in the lower cabinet and ensuring the normal operation of the control cabinet. Additionally, along the second direction of the enclosure, the length of the middle cabinet is shorter than that of the upper cabinet, allowing wiring to enter and exit from the bottom of the upper cabinet. This facilitates wiring routing and improves the waterproofing of the wiring in the upper cabinet, further enhancing the waterproofing of the mobile power supply equipment.

[0023] In one alternative embodiment, a charging gun assembly and the housing are arranged at the rear of the carriage along a third direction, and the charging gun assembly and the AC power distribution components are electrically connected.

[0024] Beneficial effects: The charging gun assembly and housing are arranged side-by-side at the rear of the carriage, allowing the mobile power supply equipment to be accessed from the rear and charged using the charging gun assembly at the rear of the carriage. Simultaneously, the electrical control cabinet is designed to ensure normal operation while maintaining a compact structure, reducing its space occupation within the carriage and facilitating a more rational layout within the carriage. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the internal structure of the electrical control cabinet according to an embodiment of this application;

[0027] Figure 2 This is a side view of the electrical control cabinet according to an embodiment of this application;

[0028] Figure 3 This is a structural diagram illustrating the positional relationship between the middle cabinet and the outgoing cable space in an embodiment of this application;

[0029] Figure 4 This is a structural diagram illustrating the positional relationship between the cabinet door and the box body according to an embodiment of this application;

[0030] Figure 5 This is a schematic diagram showing the connection relationship between some energy storage devices and electrical control cabinets in an embodiment of this application;

[0031] Figure 6 This is a schematic diagram showing the positional relationship between the housing and the charger assembly in an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Power conversion system; Z, first direction; X, second direction; Y, third direction;

[0034] 1. Cabinet; 101. Lower cabinet; 102. Middle cabinet; 103. Upper cabinet; 104. Wiring outlet; 105. Heat dissipation channel; 106. Partition;

[0035] 2. AC power distribution components; 201. AC circuit breakers; 202. AC busbars; 203. Connectors;

[0036] 3. Low-voltage electrical components; 301. Low-voltage circuit breakers; 302. Terminal blocks; 303. Relays; 304. Sockets;

[0037] 4. Communication electrical components;

[0038] 5. DC high-voltage electrical components; 501. DC busbars; 502. Transformers;

[0039] 6. Cable exit space; 7. EMS display screen; 8. Cabinet door; 9. Cable bundle;

[0040] 10. Vehicle; 11. Carriage; 12. Energy storage device; 13. Charging gun assembly. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In existing conventional mobile power supply equipment, power is usually supplied to the user by opening the side door of the carriage 11. In this case, the charging gun assembly 13 is set in the side area of ​​the carriage 11, and the rear area of ​​the carriage 11 can be used entirely to house the electrical control cabinet. This arrangement allows the electrical control cabinet to occupy a large area in the carriage 11, thereby enabling the AC power distribution components 2 and the DC high-voltage electrical components 5 to be arranged side by side along the third direction Y. This can effectively reduce the electromagnetic interference caused by the transformer 502 in the DC high-voltage electrical components 5 to the AC power distribution components 2.

[0043] In the embodiment where the power is supplied to the user through the rear door of the carriage 11, the charging gun assembly 13 needs to be arranged in the rear area of ​​the carriage 11. This results in the charging gun assembly 13 occupying part of the electrical control cabinet, which alters the structure of the electrical control cabinet and changes the relative positions of the components inside the electrical control cabinet. Consequently, there is a problem that the transformer 502 interferes with other components.

[0044] To solve the above problems, please refer to Figures 1-6 In a first aspect, this application provides an electrical control cabinet, including a housing 1, which is divided into a lower cabinet 101, a middle cabinet 102, and an upper cabinet 103 along a first direction Z. The lower cabinet 101 is equipped with AC power distribution components 2; the middle cabinet 102 is equipped with low-voltage electrical components 3 and communication electrical components 4; and the upper cabinet 103 is equipped with DC high-voltage electrical components 5.

[0045] First, it should be noted that, as Figure 1 As shown, in this embodiment, the first direction Z is the height direction of the electrical control cabinet, which is also the height direction of the carriage 11; the second direction X is the front-to-back direction of the electrical control cabinet, which is also the front-to-back direction of the carriage 11, or the length direction of the carriage 11; and the third direction Y is the left-to-right direction of the carriage 11, or the width direction of the carriage 11. Of course, those skilled in the art can adjust the specific directions referred to by the first direction Z, the second direction X, and the third direction Y according to actual needs.

[0046] The usage and connection relationships of the AC power distribution components 2, low-voltage electrical components 3, communication electrical components 4, and DC high-voltage electrical components 5 proposed in this application are all existing conventional technologies. Those skilled in the art can adapt the usage and connection relationships of the following components according to actual needs. Furthermore, in addition to the components proposed below, other components can also be installed in the electrical control cabinet to maintain the stable operation of the entire power supply system.

[0047] In this embodiment, the aforementioned electrical control cabinet can be used independently or mounted on the vehicle 10 and housed within the vehicle's compartment 11. The vehicle 10 can be a gasoline-powered vehicle, a new energy vehicle, or other ground-based mobile equipment.

[0048] In this embodiment, refer to Figure 1 Two partitions 106 are provided inside the box 1 along the first direction Z. Under the action of the two partitions 106, the box 1 is divided into a lower space, a middle space and an upper space from bottom to top along the first direction Z. The partitions 106 cooperate with the side wall of the box 1 to form a separate cabinet structure for the lower space, the middle space and the upper space, namely the lower cabinet 101, the middle cabinet 102 and the upper cabinet 103.

[0049] Optionally, in order to effectively isolate the electromagnetic interference generated by the components in each cabinet, the side walls and partitions 106 of the cabinet 1 are made of materials that can isolate electromagnetic interference, such as galvanized steel plate, aluminum plate or electrical steel, so that each cabinet forms a relatively independent electromagnetic shielding space.

[0050] In the above-mentioned configuration, this application arranges the DC high-voltage electrical components 5, including the transformer 502, in the upper cabinet 103, and the AC power distribution components 2 in the lower cabinet 101. The upper cabinet 103 and the lower cabinet 101 are also separated by the middle cabinet 102. In addition to the fact that each cabinet itself has the ability to isolate electromagnetic interference, the spatial distance between the transformer 502 and the AC power distribution components 2 is increased, which further reduces the electromagnetic interference caused by the transformer 502 to the electrical components in the lower cabinet 101 and ensures the normal operation of the electrical control cabinet.

[0051] Furthermore, existing electrical control cabinets typically have cables exiting directly from the back of the cabinet, requiring flexible cables for easy wiring and a higher level of waterproofing, thus increasing operating costs. To address these issues, the electrical control cabinet provided in this application has a middle cabinet 102 with a length along the second direction X of the cabinet 1 that is shorter than the upper cabinet 103 along the second direction X of the cabinet 1. This creates a cable exit space 6 on the exterior of the middle cabinet 102 along the second direction X. The bottom surface of the upper cabinet 103 has a cable outlet 104 corresponding to the cable exit space 6, and the cables of the upper cabinet 103 pass through the cable outlet 104 and extend into the cable exit space 6.

[0052] In this embodiment, refer to Figure 2 , Figure 3 In the second direction X, the lower cabinet 101, middle cabinet 102, and upper cabinet 103 are preferably roughly flush at one end, for example, at the end where the cabinet door 8 is located, thus facilitating the layout of the electrical control cabinet. On the rear side of the middle cabinet 102, i.e., on the side away from the cabinet door 8, a cable outlet space 6 is formed on the exterior of the middle cabinet 102. A cable outlet 104 is provided on the partition 106 of the upper cabinet 103, corresponding to the cable outlet space 6. This allows the upper cabinet 103 to have cables entering and exiting from the bottom, accommodating different types of cables. Furthermore, the bottom cable outlet of the upper cabinet 103 improves the waterproofing of the cables and reduces operating costs.

[0053] In one embodiment, refer to Figure 4 The lower cabinet 101 is equipped with an EMS display screen 7, and the communication electrical components 4 are connected to the EMS display screen 7.

[0054] In this embodiment, the electrical control cabinet and the energy management system (EMS) are connected. The EMS display screen 7 is a display device capable of displaying key operating parameters of the energy management system in real time. For example, the EMS display screen 7 can display parameters such as voltage, current, power, and electrical energy in real time. The EMS display screen 7 can be installed inside the lower cabinet 101. A transparent window or opening is provided on the cabinet door 8 of the lower cabinet 101 corresponding to the position of the EMS display screen 7 to facilitate observation and operation of the EMS display screen 7. Alternatively, an area for placing the EMS display screen 7 and related devices can be provided on the end face of the lower cabinet 101 with the cabinet door 8. The cabinet door 8 of the lower cabinet 101 and the EMS display screen 7 do not affect each other. Even after the cabinet door 8 of the lower cabinet 101 is closed, the observation and operation area of ​​the EMS display screen 7 can still be located outside the lower cabinet 101.

[0055] This configuration places the EMS display screen 7 in the lower cabinet 101, making it convenient for maintenance personnel to observe and operate. Furthermore, the EMS display screen 7 is separated from the transformer 502, which is located in the upper cabinet 103, by the middle cabinet 102. This reduces the space occupied by the electrical control cabinet and effectively reduces electromagnetic interference from the transformer 502 to the EMS display screen 7, ensuring its normal operation.

[0056] Optionally, the communication electrical components 4 include, but are not limited to, being configured as 485 communication units and / or CAN communication units. The EMS display screen 7 can be connected to the communication management unit in the middle cabinet 102 via a network cable, and the communication management unit is then connected to the electricity meter of the power conversion system 100 via the 485 communication unit and / or CAN communication unit.

[0057] In one embodiment, refer to Figure 1 , Figure 2 The AC power distribution component 2 includes at least one AC circuit breaker 201, an AC bus 202, and multiple connectors 203. Each AC circuit breaker 201 is used to connect to the AC output terminal of a power conversion system 100; the AC bus 202 is electrically connected to all AC circuit breakers 201; and the multiple connectors 203 are electrically connected to the AC bus 202.

[0058] In this embodiment, the power conversion system 100 (abbreviated as PCS) refers to a device capable of bidirectional conversion between AC and DC power. Multiple AC circuit breakers 201 are arranged in the lower cabinet 101. Each AC circuit breaker 201 corresponds to and connects to the AC output line of a single power conversion system 100. The outputs of the multiple AC circuit breakers 201 converge to an AC busbar 202, which then connects to multiple connectors 203. The connectors 203 serve as external sockets for users to use for AC charging.

[0059] Furthermore, through the cooperation of the AC circuit breaker 201, AC busbar 202, and multiple connectors 203, not only can AC power supply be achieved using connectors 203, but reverse charging can also be achieved using connectors 203. Moreover, the aforementioned components are located in the lower cabinet 101, separated from the transformer 502 located in the middle cabinet 102 and the upper cabinet 103, effectively reducing electromagnetic interference from the transformer 502 to the components included in the AC power distribution component 2, ensuring the normal operation of the AC power distribution component 2.

[0060] Optionally, the AC busbar 202 can be made of copper or aluminum conductors, with aluminum conductors being the preferred choice as they have relatively low operating costs.

[0061] In one embodiment, refer to Figure 1 The DC high-voltage electrical component 5 includes a DC busbar 501 and a transformer 502. The DC busbar 501 is used for electrical connection with the DC line of the power conversion system 100; the transformer 502 has an input terminal and an output terminal, the input terminal of the transformer 502 is electrically connected to the AC busbar 202, and the output terminal of the transformer 502 extends into the middle cabinet 102 through the outgoing line space 6.

[0062] In this embodiment, the DC bus 501 includes two aluminum busbars, designated as positive and negative respectively. The DC lines of the power conversion system 100 are led out and connected to the positive and negative aluminum busbars respectively, thereby establishing a common DC power interface. This allows the DC power generated by the power conversion system 100, or the DC power needed to charge the power conversion system 100, to first converge on the DC bus 501, and then connect to the DC-powered electrical equipment through the DC bus 501. In this way, the electrical connection between the DC bus 501 and the power conversion system 100 significantly reduces line losses and voltage drops during DC current transmission.

[0063] In this embodiment, the transformer 502 is located in the upper cabinet 103, achieving physical isolation from the AC power distribution components 2 in the lower cabinet 101, thereby reducing electromagnetic interference from the transformer 502 to the AC power distribution components 2. Furthermore, the transformer 502's location in the upper cabinet 103 ensures a greater distance between maintenance personnel and the transformer 502 when performing maintenance on the components in the lower and middle cabinets 101 and 102, reducing the risk of electric shock and improving operational safety.

[0064] In one embodiment, the low-voltage electrical component 3 includes a low-voltage circuit breaker 301, a terminal block 302, a relay 303, and a socket 304. The low-voltage circuit breaker 301 is used to connect to an external control power supply; the terminal block 302 is electrically connected to the low-voltage circuit breaker 301; the relay 303 is electrically connected to the low-voltage circuit breaker 301; and the socket 304 is electrically connected to the output terminal of the transformer 502.

[0065] In this embodiment, the input terminal of the low-voltage circuit breaker 301 is used to connect to an external control power supply. The low-voltage circuit breaker 301 serves as the main switch and short-circuit / overload protection node for the entire low-voltage control circuit. Terminal block 302 is electrically connected to the output terminal of the low-voltage circuit breaker 301. The control power output from the low-voltage circuit breaker 301 is combined and distributed by terminal block 302 to power various components within the electrical control cabinet. The control coil of relay 303 can also be electrically connected to the output terminal of the low-voltage circuit breaker 301 to receive power from an external control power supply. Furthermore, the contacts of relay 303 can be connected to other control circuits for signal isolation and other operations. Socket 304 is connected to transformer 502, and socket 304 is preferably configured as a 220V socket.

[0066] This configuration places the low-voltage electrical components 3, which require frequent maintenance, in the middle cabinet 102, facilitating debugging and repair work for maintenance personnel and improving work efficiency. Furthermore, by arranging the transformer 502 and the low-voltage electrical components 3 in different cabinets, physical isolation is achieved between them, reducing the risk of electric shock for maintenance personnel during wiring, debugging, or testing, and improving operational safety.

[0067] In one embodiment, refer to Figure 3 The side wall of the lower cabinet 101 is provided with a heat dissipation channel 105; and / or, the side wall of the middle cabinet 102 is provided with a heat dissipation channel 105; and / or, the side wall of the upper cabinet 103 is provided with a heat dissipation channel 105.

[0068] In this embodiment, heat dissipation channels 105 are provided in the lower cabinet 101, middle cabinet 102, and upper cabinet 103 according to actual needs, such as... Figure 3 As shown, a heat dissipation channel 105 is provided on the side wall of the upper cabinet 103 to improve the heat dissipation efficiency of the internal components of the upper cabinet 103, especially to improve the heat dissipation efficiency of the transformer 502 and maintain the normal operation of the transformer 502.

[0069] In one embodiment, refer to Figure 4 The lower cabinet 101, the middle cabinet 102 and the upper cabinet 103 are each equipped with cabinet doors 8.

[0070] In this embodiment, by setting separate cabinet doors 8 on each cabinet, maintenance personnel can open the cabinet corresponding to the device to be maintained separately when maintaining different devices, reducing the scope of operation. In addition, the cabinet doors 8 on other layers are kept closed, achieving safety isolation and further reducing the risk of electric shock to maintenance personnel.

[0071] In one embodiment, refer to Figure 3 A cable tie 9 is installed on the cable outlet 104 on the bottom surface of the upper cabinet 103, and the cables inside the upper cabinet 103 are routed through the cable tie 9.

[0072] In this embodiment, the cable tie 9 can be a gland head or other structure with cable tying function. By arranging the cable tie 9 at the line outlet 104, the cable tie 9 is used to constrain and guide the line, facilitating the line layout and routing. At the same time, the cable tie 9 can seal the line outlet 104, improving the waterproof performance of the line outlet 104, thereby improving the waterproof effect of the electrical control cabinet.

[0073] Secondly, referring to Figure 5 This application provides a mobile power supply device, including a carrier 10, an energy storage device 12, and an electrical control cabinet of any of the above. The carrier 10 includes a carriage 11; the energy storage device 12 is disposed inside the carriage 11; the electrical control cabinet is disposed inside the carriage 11 and is electrically connected to the energy storage device 12.

[0074] In this embodiment, the mobile power supply equipment includes the aforementioned electrical control cabinet. This cabinet has a compact structure, occupying a small area within the vehicle compartment 11, thus meeting the design and usage requirements of electrical control cabinets. Simultaneously, the DC high-voltage electrical components 5, including the transformer 502, are arranged in the upper cabinet 103, while the AC power distribution components 2, which are susceptible to electromagnetic interference from the transformer 502, are arranged in the lower cabinet 101. The upper cabinet 103 and lower cabinet 101 are physically isolated by the middle cabinet 102, mitigating the electromagnetic interference caused by the transformer 502 to the AC power distribution components 2 in the lower cabinet 101 and ensuring the normal operation of the electrical control cabinet. Furthermore, along the second direction X of the housing 1, the length of the middle cabinet 102 is shorter than the length of the upper cabinet 103, allowing the upper cabinet 103 to have wiring access from the bottom, facilitating wiring routing and improving the waterproofing of the upper cabinet 103, thereby further enhancing the waterproofing of the mobile power supply equipment.

[0075] In one embodiment, refer to Figure 6 At the rear of the carriage 11, a charging gun assembly 13 and a housing 1 are arranged along the third direction Y. The charging gun assembly 13 is electrically connected to the AC power distribution components 2.

[0076] In this embodiment, the charging gun assembly 13 and the housing 1 are arranged side by side at the rear of the carriage 11, enabling the mobile power supply equipment to have a rear door and allowing charging operations to be performed using the charging gun assembly 13 at the rear of the carriage 11. Simultaneously, the structure of the electrical control cabinet is designed to ensure normal operation and a compact structure, reducing its space occupation within the carriage 11 and facilitating a more rational layout within the carriage 11.

[0077] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An electric control cabinet, characterized in that, Includes a housing (1), which is divided sequentially along a first direction (Z) into: The lower cabinet (101) is equipped with AC power distribution components (2); The middle cabinet (102) is equipped with low-voltage electrical components (3) and communication electrical components (4); The upper cabinet (103) is equipped with DC high-voltage electrical components (5); The length of the middle cabinet (102) along the second direction (X) of the box body (1) is less than the length of the upper cabinet (103) along the second direction (X) of the box body (1), so that the outside of the middle cabinet (102) forms a cable outlet space (6) in the second direction (X). The bottom surface of the upper cabinet (103) is provided with a line outlet (104) corresponding to the cable outlet space (6). The lines of the upper cabinet (103) pass through the line outlet (104) and extend to the cable outlet space (6).

2. The electric control cabinet according to claim 1, characterized in that, The lower cabinet (101) is equipped with an EMS display screen (7), and the communication electrical components (4) are communicatively connected to the EMS display screen (7).

3. The electric control cabinet according to claim 1, characterized in that, The AC power distribution components (2) include: At least one AC circuit breaker (201), each of the AC circuit breakers (201) being used to connect to the AC output of a power conversion system (100); The AC bus (202) is electrically connected to all of the AC circuit breakers (201); Multiple connectors (203) are electrically connected to the AC bus (202).

4. The electric control cabinet according to claim 3, characterized in that, The DC high-voltage electrical components (5) include: DC bus (501) is used for electrical connection with the DC line of the power conversion system (100); A transformer (502) has an input terminal and an output terminal. The input terminal of the transformer (502) is electrically connected to the AC bus (202). The output terminal of the transformer (502) extends into the middle cabinet (102) through the outgoing line space (6).

5. The electric control cabinet according to claim 4, characterized in that, The low-voltage electrical components (3) include: Low-voltage circuit breaker (301) is used to connect to an external control power supply; The terminal block (302) is electrically connected to the low-voltage circuit breaker (301); The relay (303) is electrically connected to the low-voltage circuit breaker (301); The socket (304) is electrically connected to the output terminal of the transformer (502).

6. The electric control cabinet according to claim 1, characterized in that, The side wall of the lower cabinet (101) is provided with a heat dissipation channel (105); And / or, the side wall of the middle cabinet (102) is provided with a heat dissipation channel (105); And / or, the side wall of the upper cabinet (103) is provided with a heat dissipation channel (105).

7. The electric control cabinet according to any one of claims 1-6, characterized in that, The lower cabinet (101), the middle cabinet (102) and the upper cabinet (103) are each equipped with cabinet doors (8).

8. The electrical control cabinet according to any one of claims 1-6, characterized in that, A cable tie (9) is provided on the line outlet (104) on the bottom surface of the upper cabinet (103), and the lines inside the upper cabinet (103) are passed through the cable tie (9).

9. A mobile power supply device characterized by comprising: include: Vehicle (10), including carriage (11); An energy storage device (12) is installed inside the carriage (11); The electrical control cabinet according to any one of claims 1-8, wherein the electrical control cabinet is disposed in the carriage (11) and is electrically connected to the energy storage device (12).

10. The mobile power supply device of claim 9, wherein, The rear of the carriage (11) is provided with a charging gun assembly (13) and the box (1) along the third direction (Y), and the charging gun assembly (13) and the AC power distribution component (2) are electrically connected.

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