Mobile charging station

Abstract

The utility model discloses a mobile charging station, and relates to the technical field of mobile energy storage systems. The mobile charging station comprises a vehicle body, a compartment is arranged on the vehicle body, the mobile charging station further comprises direct current charging equipment, power distribution equipment and energy storage equipment which are sequentially arranged in the compartment in the first direction, and the power distribution equipment is electrically connected with the energy storage equipment and the direct current charging equipment; in the first direction, the length of the carriage and the length of the energy storage equipment meet the relational expression that L2 / L1 is larger than or equal to 0.35 and smaller than or equal to 0.47; the first direction is the length direction of the vehicle body. The mobile charging station provided by the utility model can accommodate more battery clusters and meet the requirements of users.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage systems, and in particular to a mobile charging station. Background Art

[0002] Mobile energy storage vehicles enable the flexible deployment of energy storage systems in situations where power supply is urgently needed. With the rapid adoption of electric vehicles, the demand for mobile energy storage vehicles is increasing. The large capacity of mobile energy storage vehicles can extend the continuous power supply time of charging stations.

[0003] The layout of the energy storage equipment and related power distribution, charging and other equipment in the equipment compartment of existing mobile energy storage vehicles is chaotic. Under the same vehicle model, the power capacity of the energy storage equipment cannot meet the usage needs. Utility Model Content

[0004] In view of this, the present application provides a mobile charging station, the purpose of which is to solve one of the technical problems in the prior art.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] In a first aspect, an embodiment of the present application provides a mobile charging station, comprising a vehicle body, wherein the vehicle body is provided with a carriage, and the vehicle body has a first orientation;

[0007] and, a DC charging device, a power distribution device, and an energy storage device sequentially arranged in the vehicle compartment along the first direction, the power distribution device being electrically connected to the energy storage device and the DC charging device, respectively;

[0008] Among them, along the first direction, the length of the carriage is L1, and the length of the energy storage device is L2, satisfying the relationship: 0.35≤L2 / L1≤0.47; the first direction is the length direction of the vehicle body.

[0009] In one embodiment of the first aspect, the vehicle body further has a second direction perpendicular to the first direction, and the second direction is a height direction of the vehicle body;

[0010] The vehicle body is provided with a first chassis and a second chassis, the first chassis and the second chassis are arranged along the first direction, and along the second direction, the top of the first chassis is higher than the top of the second chassis;

[0011] A portion of the energy storage device is disposed on the first chassis, and another portion of the energy storage device is disposed on the second chassis.

[0012] In one embodiment of the first aspect, along the first direction, the length of the first chassis is L3, and the length of the second chassis is L4, satisfying the relationship: L1≤L3+L4.

[0013] In one embodiment of the first aspect, along the second direction, a difference between a highest point on the top of the first chassis and a highest point on the top of the second chassis is h, satisfying the relationship: 285 mm ≤ h ≤ 360 mm.

[0014] In one embodiment of the first aspect, the energy storage device includes:

[0015] a first battery rack, wherein the first battery is mounted on the first chassis;

[0016] a second battery rack, wherein the second battery is mounted on the second chassis;

[0017] A plurality of battery clusters, each battery cluster is electrically connected to the power distribution equipment, a portion of the battery clusters is arranged on the first battery rack, and another portion of the battery clusters is arranged on the second battery rack.

[0018] In one embodiment of the first aspect, a plurality of first liquid cooling plates are provided on the first battery rack, and the plurality of first liquid cooling plates are provided to separate the first battery rack into N storage spaces.

[0019] The second battery rack is provided with a plurality of second liquid cooling plates arranged at intervals, and the plurality of second liquid cooling plates arranged at intervals separate the second battery rack into M storage spaces, satisfying the relationship: N<M; the storage spaces are used to place the battery packs of the battery cluster.

[0020] In one embodiment of the first aspect, the length of the storage space along the first direction is L d The height of the storage space along the second direction is H d The length of the battery pack along the first direction is L n The height of the battery pack along the second direction is H n , satisfying the relationship: 0.85≤L n / L d ≤0.97, 0.75≤H n / H d ≤0.95.

[0021] In one embodiment of the first aspect, the number of the storage spaces provided along the first direction is W, satisfying the relationship: 0.8≤W×L d / L2≤0.9.

[0022] In one embodiment of the first aspect, the power distribution equipment includes:

[0023] a main control device, the main control device being electrically connected to the battery cluster;

[0024] A power distribution cabinet is provided on the first chassis and is located on a side of the first battery rack away from the second battery rack.

[0025] In one embodiment of the first aspect, the mobile charging station further comprises:

[0026] A cooling device, the cooling device being arranged on a side of the DC charging device away from the power distribution device;

[0027] Fire-fighting equipment is arranged on a side of the energy storage device away from the power distribution device.

[0028] In one embodiment of the first aspect, the vehicle body further has a third direction perpendicular to the first direction, and the third direction is a width direction of the vehicle body;

[0029] The fire-fighting equipment includes:

[0030] A plurality of fire detectors are arranged on opposite sides of the carriage along the third direction.

[0031] In one embodiment of the first aspect, the cooling device includes a cooling pipeline, the fire-fighting device includes a fire-fighting pipeline, and the cooling pipeline and the fire-fighting pipeline are respectively arranged around the energy storage device.

[0032] In one embodiment of the first aspect, the cooling device further comprises:

[0033] a liquid cooler, the liquid cooler being disposed on a side of the DC charging device away from the energy storage device, the liquid cooler being provided with an air inlet, the air inlet being disposed on a side of the liquid cooler away from the DC charging device;

[0034] An air outlet pipe, one end of which is connected to the air inlet, and the other end of which is an air outlet, wherein the air outlet direction of the air outlet is perpendicular to the first direction.

[0035] In one embodiment of the first aspect, the DC charging device includes at least one charging gun.

[0036] In one embodiment of the first aspect, an air suction port and an air exhaust port are provided on the side wall of the carriage, a dustproof baffle is provided at the air suction port, and an exhaust fan is provided at the exhaust port.

[0037] Compared with the prior art, the present application has the following beneficial effects: the present application proposes a mobile charging station comprising a vehicle body, a carriage disposed on the vehicle body, and a DC charging device, a power distribution device, and an energy storage device sequentially disposed in the carriage along a first direction. The power distribution device is electrically connected to the energy storage device and the DC charging device, respectively. In this way, the carriage can be pulled by the vehicle body, thereby flexibly utilizing the energy storage device in situations where power supply and power maintenance are urgently needed.

[0038] Along the first direction, the length of the vehicle compartment is , and the length of the energy storage device is , satisfying the relationship: 0.35 ≤ L2 / L1 ≤ 0.47; the first direction is the length of the vehicle body. This maximizes the length of the energy storage device, accommodating more battery clusters within the device. This maximizes the amount of energy stored within the device for the same vehicle type, thereby meeting user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application 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 creative work.

[0040] Figure 1 A schematic diagram of the structure of one side of a mobile charging station in some embodiments of the present application is shown;

[0041] Figure 2 A schematic diagram of the structure of the other side of the mobile charging station in some embodiments of the present application is shown;

[0042] Figure 3 A schematic diagram of the assembly structure of a cooling device and an energy storage device in some embodiments of the present application is shown;

[0043] Figure 4 A schematic diagram of the structure of one side of the power distribution equipment in some embodiments of the present application is shown;

[0044] Figure 5 A schematic diagram of the structure of the other side of the power distribution equipment in some embodiments of the present application is shown;

[0045] Figure 6 A diagram showing the working principle of the power distribution equipment in some embodiments of the present application is shown;

[0046] Figure 7 A schematic diagram of a top view of a mobile charging station in some embodiments of the present application is shown;

[0047] Figure 8 A schematic structural diagram of the storage space in some embodiments of the present application is shown.

[0048] Description of main component symbols: 100-mobile charging station; D1-first direction; D2-second direction; D3-third direction;

[0049] 110 - vehicle body; 120 - carriage; 121 - first chassis; 122 - second chassis;

[0050] 130-DC charging equipment; 131-DC charging gun;

[0051] 140 - Power distribution equipment; 141 - Main control device; 142 - Power distribution cabinet; 143 - Shunt module; 1431 - Shunt device; 144 - AC / DC conversion module; 1441 - Converter device; 1442 - Circuit breaker; 145 - Convergence module; 1451 - DC busbar; 1452 - AC busbar; 146 - Monitoring device; 147 - Uninterruptible power supply; 148 - Auxiliary power device;

[0052] 150 - Energy storage device; 151 - Battery cluster; 1511 - Battery pack; 152 - First battery rack; 153 - Second battery rack; 154a - First liquid cooling plate; 154b - Second liquid cooling plate; 1541 - Storage space; 160 - Cable winch;

[0053] 170-Cooling equipment; 171-Liquid cooler; 1711-Air inlet; 172-Air outlet; 1721-Air outlet; 173-Main water inlet; 174-Branch water inlet; 175-Branch water outlet; 176-Main water outlet;

[0054] 180- Firefighting equipment; 181- Fire extinguisher; 182- Spraying pipeline; 1821- Fire extinguishing nozzle; 183- Fire detector. DETAILED DESCRIPTION

[0055] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0056] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0058] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0059] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0060] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a mobile charging station 100, which is mainly used for mobile power supply.

[0061] The mobile charging station 100 includes a vehicle body 110, a vehicle compartment 120, and a DC charging device 130, a power distribution device 140, and an energy storage device 150 sequentially arranged in the vehicle compartment 120 along a first direction D1. The power distribution device 140 is electrically connected to the energy storage device 150 and the DC charging device 130, respectively.

[0062] Energy storage device 150 is used to store electrical energy, and DC charging device 130 is used to output DC power to external devices. Power distribution device 140 is used to input a portion of the electrical energy in energy storage device 150 into DC charging device 130, outputting the electrical energy as DC power. Power distribution device 140 is also used to invert a portion of the electrical energy in energy storage device 150 and output it as AC power.

[0063] The carriage 120 has a first direction D1, a second direction D2, and a third direction D3. To facilitate the description of the following embodiment, the first direction D1 is the length direction of the vehicle body 110, the second direction D2 is the height direction of the vehicle body 110, and the third direction D3 is the width direction of the vehicle body 110.

[0064] Here, along the first direction D1, the length of the carriage 120 is L1, and the length of the energy storage device 150 is L2, which satisfies the relationship: 0.35≤L2 / L1≤0.47.

[0065] The mobile charging station 100 provided in an embodiment of the present application sequentially arranges a DC charging device 130, a power distribution device 140, and an energy storage device 150 within a vehicle compartment 120. Furthermore, the ratio of the length of the energy storage device 150 to the length of the vehicle compartment 120 is set to satisfy 0.35≤L2 / L1≤0.47. This maximizes the length of the energy storage device 150, allowing it to accommodate more battery clusters 151. This maximizes the amount of power stored in the energy storage device 150 for the same vehicle type, thereby meeting user needs.

[0066] For example, the values ​​of L2 / L1 can be: 0.35, 0.36, 0.37, 0.38, 0.39, 0.40, 0.41, 0.42, 0.43, 0.44, 0.45, 0.46, and 0.47. When L2 / L1 is greater than 0.47, the weight of the energy storage device 150 is too large, and the overall weight of the mobile charging station 100 may easily exceed 49 tons. When L2 / L1 is less than 0.35, the stored power of the energy storage device 150 is low.

[0067] By limiting the overall size of the energy storage device 150, the battery packs 1511 in the energy storage device 150 are distributed in a centralized manner. By improving space utilization, the number of battery packs 1511 in the energy storage device 150 is increased, the storage capacity of the energy storage device 150 is increased, and the configuration capacity of the mobile charging station 100 is expanded.

[0068] In some embodiments, as Figure 2 As shown, the carriage 120 includes a first chassis 121 and a second chassis 122 arranged along a first direction D1 .

[0069] The top of the first chassis 121 is higher than the top of the second chassis 122. In other words, the first chassis 121 is higher from the bottom than the second chassis 122. The arrangement of the first chassis 121 and the second chassis 122 creates an upwardly concave space at the bottom of the front end of the carriage 120, facilitating docking between the vehicle body 110 and the carriage 120. Wheels are located below the second chassis 122.

[0070] In this embodiment, a portion of the energy storage device 150 is mounted on the first chassis 121, while the remainder is mounted on the second chassis 122. This distributes the bulk of the mobile charging station 100's weight in the center of the vehicle compartment 120, making the vehicle compartment 120 more stable. Furthermore, by placing the battery pack 1511 within the energy storage device 150 on chassis at different heights, the height difference is utilized to increase the heat dissipation space for the energy storage device 150, thereby improving the safety of the mobile charging station 100.

[0071] In other embodiments, the energy storage device 150 may be disposed only on the second chassis 122 or the first chassis 121 as required.

[0072] In some embodiments, along the first direction D1, the length of the first chassis 121 is L3, and the length of the second chassis 122 is L4, satisfying the relationship: L1≤L3+L4, so that the length of the carriage 120 is smaller than the total length of the first chassis 121 and the second chassis 122, making the storage of the energy storage device 150 more concentrated.

[0073] In some embodiments, as Figure 1 As shown, along the second direction D2, the difference between the highest point on the top of the first chassis 121 and the highest point on the top of the second chassis 122 is h, satisfying the relationship: 285mm ≤ h ≤ 360mm. By setting this height difference h, the second chassis 122 can accommodate more battery clusters 151, shifting the overall center of gravity of the vehicle body 120 toward the second chassis 122 and maintaining vehicle balance. While maintaining vehicle balance, the energy storage device 150 can be expanded in size and the number of battery clusters 151 installed can be increased to maximize the amount of energy stored in the energy storage device 150.

[0074] For example, the difference between the highest point of the top of the first chassis 121 and the highest point of the top of the second chassis 122, h, can be 285mm, 295mm, 305mm, 315mm, 325mm, 335mm, 345mm, 355mm, or 360mm. When h is greater than 360mm, the height of the first chassis 121 is too high, reducing the volume of the carriage 120 and the available space within the carriage 120. This reduces the size of the energy storage device 150, reduces the number of battery clusters 151 that can be installed, and reduces the amount of energy stored in the energy storage device 150. When h is less than 285mm, the distance between the first chassis 121 and the ground is too close, resulting in a small upward concave space at the bottom of the front end of the carriage 120, which is not conducive to the docking of the vehicle body 110 and the carriage 120.

[0075] In some embodiments, the energy storage device 150 further includes a first battery rack 152, a second battery rack 153, and a plurality of battery clusters 151. The provision of the first battery rack 152 and the second battery rack 153 makes the arrangement of adjacent battery clusters 151 more compact, thereby improving the energy density of the energy storage device 150 and maximizing the amount of power stored in the energy storage device 150.

[0076] like Figures 1 to 3 As shown, the first battery rack 152 is disposed on the first chassis 121 , and the second battery rack 153 is disposed on the second chassis 122 , and the top heights of the first battery rack 152 and the second battery rack 153 are close to each other, thereby increasing the storage space for the battery cluster 151 .

[0077] Each battery cluster 151 is electrically connected to the power distribution equipment 140. Some battery clusters 151 are arranged on the first battery rack 152, and other battery clusters 151 are arranged on the second battery rack 153. This ensures that the weight of the energy storage device 150 is evenly distributed and increases the distance between the battery clusters 151 in the energy storage device 150 to facilitate heat dissipation.

[0078] It should be noted that each battery cluster 151 in the embodiment of the present application includes multiple battery packs 1511, and all battery packs 1511 are arranged in an array along the first direction D1, the third direction D3, and the second direction D2 of the vehicle compartment 120. This makes the arrangement of the battery packs 1511 in the energy storage device 150 more compact.

[0079] The number of battery packs 1511 arranged in the first direction D1 of the energy storage device 150 is the same as the number of battery packs 1511 in the battery clusters 151. This allows the battery packs 1511 in the battery clusters 151 to be arranged horizontally, making the arrangement of the battery packs 1511 in each battery cluster 151 more rational. This rational arrangement of the battery packs 1511 also simplifies wiring. Furthermore, the DC charging device 130, the power distribution device 140, and the energy storage device 150 can be arranged sequentially along the first direction D1 of the vehicle compartment 120, resulting in a more rational spatial layout.

[0080] For example, in this embodiment, one battery cluster 151 includes five battery packs 1511 . Accordingly, the number of battery packs 1511 arranged in the first direction D1 of the energy storage device 150 is five.

[0081] The energy storage device 150 is provided with seven battery packs 1511 in the second direction D2, wherein, in the second direction D2, the bottom row is a horizontally arranged battery cluster 151, the second to last row is a horizontally arranged battery cluster 151, and the upper five rows are provided with five vertically arranged battery clusters 151.

[0082] It is understandable that in other ways, all the battery packs 1511 in all the battery clusters 151 can be arranged horizontally, but the combination of vertical arrangement and horizontal arrangement in this embodiment is conducive to reasonable wiring.

[0083] In this embodiment, if Figure 2 and Figure 3 As shown, the battery packs 1511 in the energy storage device 150 are evenly distributed on both sides of the vehicle compartment 120. That is, the number of battery packs 1511 arranged in the third direction D3 of the energy storage device 150 is two. In other embodiments, the number of battery packs 1511 arranged in the third direction D3 of the energy storage device 150 can be designed to be three, four, etc. according to actual conditions.

[0084] In some embodiments, a plurality of first liquid cooling plates 154 a are provided on the first battery rack 152 , and the plurality of first liquid cooling plates 154 a are provided to separate the first battery rack 152 into N storage spaces 1541 .

[0085] A plurality of spaced-apart second liquid cooling plates 154 b are provided on the second battery rack 153 . The plurality of spaced-apart second liquid cooling plates 154 b separate the second battery rack 153 into M storage spaces 1541 .

[0086] The storage space 1541 is used to place the battery pack 1511 of the battery cluster 151 .

[0087] N and M satisfy the relationship: N < M. In this embodiment, there are 14 battery clusters 151 , each containing five battery packs 1511 . Therefore, N is 14 and M is 56. Consequently, placing the majority of the battery packs 1511 on the second chassis 122 shifts the center of mass of the vehicle body 120 toward the second chassis 122 . This allows the vehicle body 110 and vehicle body 120 to remain stable when separated.

[0088] The sum of N and M is equal to the number of battery packs 1511 in energy storage device 150. A corresponding battery pack 1511 is placed on each first liquid cooling plate 154a or second liquid cooling plate 154b. This allows energy storage device 150 to store a large amount of electricity, reaching 3.4 MWh. Furthermore, the cooling device 170 extends the service life of the entire energy storage device 150 and improves operational safety and reliability.

[0089] In some embodiments, as Figure 8 As shown, the length of the storage space 1541 along the first direction D1 is L d The height of the storage space 1541 along the second direction D2 is H d The length of the battery pack 1511 along the first direction D1 is L n The height of the battery pack 1511 along the second direction D2 is H n , satisfying the relationship: 0.85≤L n / L d ≤0.97, 0.75≤H n / H d By making the volume of the battery pack 1511 and the storage space 1541 close to each other, the volume of the battery pack 1511 is increased, thereby increasing the storage capacity of each battery pack 1511. At the same time, adjacent battery packs 1511 are spaced apart to facilitate heat dissipation.

[0090] For example, L n / L d The values ​​of can be: 0.85, 0.86, 0.87, 0.88, 0.89, 0.90, 0.91, 0.92, 0.93, 0.94, 0.95, 0.96, 0.97; H n / H d The possible values ​​of are: 0.75, 0.76, 0.77, 0.78, 0.79, 0.80, 0.81, 0.82, 0.83, 0.84, 0.85, 0.86, 0.87, 0.88, 0.89, 0.90, 0.91, 0.92, 0.93, 0.94, 0.95.

[0091] When L n / L d >0.97, H n / H d When L > 0.95, the battery packs 1511 are arranged too densely, which is not conducive to heat dissipation; n / L d <0.85,L n / L d When <0.75, the volume of the storage space 1541 is too large, which reduces the storage quantity of the battery packs 1511 and reduces the storage capacity of the energy storage device 150.

[0092] In some embodiments, as Figure 3 As shown, the number of storage spaces 1541 arranged along the first direction D1 is W, satisfying the relationship: 0.8≤W×L d By making the total length of all battery packs 1511 arranged side by side in the first direction D1 close to the length of the energy storage device 150 , the energy storage density of the energy storage device 150 is increased, and the overall storage capacity of the energy storage device 150 is increased.

[0093] For example, W×L d The values ​​of / L2 can be: 0.80, 0.81, 0.82, 0.83, 0.84, 0.85, 0.86, 0.87, 0.88, 0.89, 0.90. When W×L d When W×L>0.9, the battery packs 1511 are arranged too densely, which is not conducive to heat dissipation; when W×L d When / L<0.8, the number of battery packs 1511 stored is reduced, and the storage capacity of the energy storage device 150 is reduced.

[0094] In some embodiments, the power distribution device 140 includes a main control device 141 , which is electrically connected to the battery cluster 151 .

[0095] like Figures 1 to 3 As shown, the main control device 141 is disposed on the second battery rack 153 and is located below the battery pack 1511. In this way, the space of the carriage 120 in the second direction D2 is fully utilized, making the spatial layout of various devices more reasonable.

[0096] In some embodiments, the main control device 141 may be further disposed above the second battery rack 153 as needed, or may be further disposed on the first battery rack 152 as needed.

[0097] There are multiple master control devices 141, each of which is electrically connected to a battery cluster 151. The master control device 141 is responsible for monitoring and managing the status of the battery cluster 151 and optimizing the discharge process of the battery cluster 151 through an intelligent management system.

[0098] In some embodiments, as Figure 4 and Figure 5 As shown, the power distribution equipment 140 further includes a power distribution cabinet 142 and a diversion module 143 .

[0099] The power distribution cabinet 142 is disposed on the first chassis 121 and is located on a side of the first battery rack 152 away from the second battery rack 153 .

[0100] like Figure 4 As shown, the distribution cabinet 142 is divided into multiple placement spaces to improve space utilization.

[0101] The shunt module 143 is disposed on one side of the power distribution cabinet 142 close to the first battery rack 152 . A plurality of shunt devices 1431 are disposed in the shunt module 143 . Every two main control devices 141 are electrically connected to a shunt device 1431 after merging.

[0102] In this embodiment, the number of battery clusters 151 is 14, and the number of current diverter devices 1431 is 7. The 7 current diverter devices 1431 are arranged at intervals along the second direction D2 and are centrally placed in the power distribution cabinet 142.

[0103] The shunt device 1431 is used to combine the power input from the two battery clusters 151 and distribute it to multiple output ports, ensuring a stable power supply to each port. In this embodiment, the shunt device 1431 has two output ports, outputting two DC currents. In other embodiments, the number of output ports of the shunt device 1431 can be increased as needed.

[0104] In some embodiments, the power distribution equipment 140 further includes an AC / DC conversion module 144 disposed in the power distribution cabinet 142 .

[0105] The AC / DC conversion module 144 includes multiple converters 1441 and multiple circuit breakers 1442 . The multiple converters 1441 and the shunt module 143 are spaced apart along the third direction D3 . The multiple circuit breakers 1442 are located on a side of the shunt module 143 away from the first battery rack 152 .

[0106] like Figure 5 As shown, in this embodiment, there are seven converters 1441, which are arranged at intervals along the second direction D2 and are centrally placed in the power distribution cabinet 142. The converters 1441 are used to convert direct current into alternating current.

[0107] The number of circuit breakers 1442 is 7, and the 7 short-circuit breakers are centrally arranged.

[0108] A converter device 1441 is electrically connected to a shunt device 1431, and a circuit breaker 1442 is electrically connected to each converter device 1441, wherein the shunt device 1431 is arranged at the input end of the converter device 1441, and the circuit breaker 1442 is arranged at the output end of the converter device 1441, so that the AC power output by the converter device 1441 is protected by the circuit breaker 1442.

[0109] The circuit breaker 1442 is an AC circuit breaker 1442 , which is used to protect the circuit from overload and short circuit damage.

[0110] In some embodiments, the power distribution equipment 140 further includes a convergence module 145 disposed in the power distribution cabinet 142 . The convergence module 145 is disposed on a side of the diversion module 143 away from the first battery rack 152 and is located below the plurality of circuit breakers 1442 .

[0111] The bus module 145 includes a DC bus 1451 and an AC bus 1452 , and the shunt device 1431 is also electrically connected to the DC bus 1451 .

[0112] like Figure 6 As shown, the working principle of the power distribution device 140 is as follows:

[0113] One battery cluster 151 inputs DC power to one main control device 141 . Every two main control devices 141 are electrically connected to one shunt device 1431 , and the main control device 141 outputs DC power to the shunt device 1431 .

[0114] The shunt device 1431 outputs two DC currents. One DC current from the shunt device 1431 is input to the DC bus 1451 , and the other DC current is input to the converter 1441 . The converter 1441 converts the DC current into AC current.

[0115] The DC bus 1451 outputs DC power to the DC charging device 130 , and the DC charging device 130 outputs DC power to an external device.

[0116] Each circuit breaker 1442 is electrically connected to an AC busbar 1452 . The AC busbar 1452 is provided with a plurality of output terminals. The output terminals are used to electrically connect to external devices, and the output terminals output AC power to the external devices.

[0117] In some embodiments, as Figure 4 As shown, the power distribution equipment 140 further includes a monitoring device 146 , an uninterruptible power supply device 147 and an auxiliary power device 148 , which are arranged in the power distribution cabinet 142 .

[0118] Monitoring device 146 is located on one side of the multiple converters 1441, away from the energy storage device 150. Monitoring device 146 is equipped with a display screen. The monitoring cabinet is used to monitor and manage the energy storage system. The cabinet door is equipped with a BMS (Battery Management System), a display screen, and a display for displaying the remaining charge of the DC charging station.

[0119] The uninterruptible power supply 147 is located on a side of the shunt module 143 away from the first battery rack 152 and above the multiple circuit breakers 1442. The uninterruptible power supply 147 is used to provide continuous and stable power supply during power outages to ensure the normal operation of key equipment.

[0120] The auxiliary power unit 148 is located on one side of the power distribution cabinet 142 near the first battery rack 152 and below the shunt module 143. The auxiliary power unit 148 manages and distributes auxiliary power, providing a safe and reliable power supply to various auxiliary devices while also providing protection and control functions.

[0121] In this embodiment, through reasonable spatial layout within the power distribution equipment 140, multiple devices are integrated and distributed in the power distribution cabinet 142, which can reduce the volume of the power distribution equipment 140 in the vehicle compartment 120 and improve space utilization, thereby increasing the number of battery packs 1511 in the energy storage device 150 and expanding the configuration capacity of the mobile charging station 100.

[0122] In addition, the power distribution equipment 140 of the present application can also output DC and AC power to supply external equipment. By setting up a monitoring device 146, an uninterruptible power supply device 147 and an auxiliary power device 148, the power distribution equipment 140 is fully functional and the operating reliability of the power distribution equipment 140 is improved.

[0123] The mobile charging station 100 further includes a cooling device 170 and a fire-fighting device 180 disposed in the vehicle compartment 120 .

[0124] The cooling device 170 is disposed on a side of the DC charging device 130 away from the power distribution device 140 , and the fire-fighting device 180 is disposed on a side of the energy storage device 150 away from the power distribution device 140 .

[0125] The cooling device 170 is used to control the temperature of the battery pack 1511 in the energy storage device 150, and control the working environment temperature of the energy storage device 150 to 15-30°C, thereby extending the service life of the entire energy storage device 150 and ensuring safe and reliable operation.

[0126] The fire-fighting equipment 180 is used to perform fire monitoring and to promptly extinguish the energy storage device 150 when a fire occurs.

[0127] In some embodiments, as Figure 1 and Figure 7 As shown, the fire-fighting equipment 180 further includes a fire extinguisher 181 and a spray pipe 182 .

[0128] The fire extinguisher 181 is located on a side of the energy storage device 150 away from the power distribution device 140 .

[0129] The spray line is connected to the fire extinguisher 181 and is located around the energy storage device 150. Multiple fire extinguishing nozzles 1821 are installed on the spray line, facing the energy storage device 150. When a fire occurs, the spray from the fire extinguisher 181 enters the spray line and is then sprayed by each fire extinguishing nozzle 1821 toward the battery pack 1511, improving fire extinguishing efficiency.

[0130] In some embodiments, each battery cluster 151 is provided with at least one fire extinguishing nozzle 1821 , and perfluorohexanone cluster-level spraying technology is used to improve the safety performance of the mobile charging station 100 .

[0131] In some embodiments, the fire fighting equipment 180 further includes a plurality of fire detectors 183 and exhaust fans (not shown).

[0132] A plurality of fire detectors 183 are arranged on both sides of the vehicle compartment 120 along the third direction D3. The fire detector 183 is at least one of a smoke sensor, a temperature sensor, and a combustible gas sensor.

[0133] The sidewalls of the compartment 120, along the third direction D3, are provided with an air intake and an air exhaust port. The air intake port is equipped with a dust shield, and the air exhaust port is equipped with an exhaust fan. When the sensor detects smoke, high temperature, or flammable gas, the exhaust fan activates, allowing outside air to enter the compartment 120 through the air intake port. The smoke or flammable gas inside the compartment 120 is then discharged through the exhaust port, thereby improving the safety of the mobile charging station 100.

[0134] The cooling device 170 includes a cooling pipeline, and the fire fighting device 180 includes a fire fighting pipeline. The cooling pipeline and the fire fighting pipeline are respectively arranged around the energy storage device 150. In this way, the cooling efficiency of the energy storage device 150 is improved, the service life of the entire energy storage device 150 is extended, and the safe and reliable operation is improved.

[0135] In some embodiments, as Figure 1 and Figure 3 As shown, the cooling device 170 further includes a liquid cooler 171 and an air outlet pipe 172 .

[0136] The liquid cooler 171 is disposed on the first chassis 121 and on a side of the DC charging device 130 away from the energy storage device 150 . The liquid cooler 171 is provided with an air inlet 1711 . The air inlet 1711 is disposed on a side of the liquid cooler 171 away from the DC charging device 130 .

[0137] The air outlet pipe 172 is provided above the liquid cooler 171 . One end of the air outlet pipe 172 is connected to the air inlet 1711 of the liquid cooler 171 . The other end of the air outlet pipe 172 is an air outlet 1721 . The air outlet direction of the air outlet 1721 is perpendicular to the first direction D1 .

[0138] For example, the air outlet 1721 of the air outlet duct 172 is arranged toward the third direction D3, so that the air outlet duct 172 discharges air from the side of the vehicle compartment 120. Compared with the related art in which air is discharged from the top surface of the vehicle compartment 120, the position of the air outlet 1721 of the air outlet duct 172 of the present application can reduce or even prevent rainwater from entering the liquid cooler 171 through the air outlet 1721.

[0139] The cooling pipeline connects the liquid cooling machine 171 and each first liquid cooling plate 154a, the cooling pipeline connects the liquid cooling machine 171 and each second liquid cooling plate 154b, and the cooling pipeline connects the liquid cooling machine 171 and each liquid cooling plate. Figure 3 As shown, the cooling pipeline includes a main water inlet pipe 173, a branch water inlet pipe 174, a branch water outlet pipe 175 and a main water outlet pipe 176 which are connected in sequence. Each liquid cooling plate is connected to the branch water inlet pipe 174 and the branch water outlet pipe 175, and the main water inlet pipe 173 and the main water outlet pipe 176 are respectively connected to the liquid cooling equipment.

[0140] The branch water inlet pipe 174 is divided into a first-level branch water inlet pipe and a second-level branch water inlet pipe, wherein the first-level branch water inlet pipe is directly connected to the water inlet of each liquid cooling plate, and the second-level branch water inlet pipe is fixed along the frame of the first battery rack 152 or the second battery rack 153. Multiple first-level branch water inlet pipes are respectively connected to the second-level branch water inlet pipe, and the second-level branch water inlet pipe is connected to the main water inlet pipe 173.

[0141] Similarly, the branch water outlet pipe 175 is divided into a first-level branch water outlet pipe and a second-level branch water outlet pipe, wherein the first-level branch water outlet pipe is directly connected to the water outlet of each liquid cooling plate, and the second-level branch water outlet pipe is fixed along the frame of the first battery rack 152 or the second battery rack 153. Multiple first-level branch water outlet pipes are respectively connected to the second-level branch water outlet pipe, and the second-level branch water outlet pipe 175 is connected to the main water outlet pipe 176.

[0142] The air inlet 1711 of the liquid cooler 171 is designed with louver protection. The liquid cooler 171 exchanges heat with the coolant filled in the cooling pipeline, thereby achieving efficient heat dissipation of the battery pack 1511, and realizing a large capacity of 3.4MWh for the entire vehicle.

[0143] In some embodiments, the DC charging device 130 is arranged on the first chassis 121 and on the side of the distribution cabinet 142 away from the energy storage device 150. The DC charging device 130 includes at least one DC charging gun 131. At least one DC charging gun 131 is arranged on both sides of the carriage 120 along the third direction D3. The DC charging gun 131 is electrically connected to the DC bus 1451.

[0144] like Figure 1 and Figure 2As shown, in this embodiment, the number of DC charging guns 131 is illustratively six. Three of the DC charging guns 131 are arranged on the side of the vehicle compartment 120, and the three DC charging guns 131 are arranged at intervals along the second direction D2; the other three DC charging guns 131 are located on the side of the DC charging device 130 away from the power distribution device 140. This rationally utilizes the space in the vehicle compartment 120. Increasing the number of DC charging guns 131 can effectively alleviate the problem of insufficient charging piles. At the same time, the large-capacity configuration of the energy storage device 150 can extend the continuous power supply of the charging pile, improving the practicality of the mobile charging station 100.

[0145] It should be understood that in other embodiments, the specific number and distribution of the DC charging guns 131 can be set according to actual conditions.

[0146] In some embodiments, the mobile charging station 100 further includes a cable winch 160, which is located on a side of the energy storage device 150 away from the power distribution device 140 and below the fire extinguisher 181. In this embodiment, when the cable is not in use, the cable is wound around the cable winch 160, which helps protect the cable from damage during transportation and use, and also improves the efficiency and safety of cable routing.

[0147] In summary, the vehicle compartment 120 of the mobile charging station 100 provided in the embodiments of the application utilizes a 13-meter-long, six-axle, semi-trailer vehicle. GB1589 stipulates that the gross mass of a six-axle vehicle shall not exceed 49 tons. Excluding the weight of the vehicle compartment 120 and the vehicle body 110, the remaining mass for the energy storage system is limited. This application utilizes a rational layout of the various devices to increase the amount of energy stored in the mobile charging station 100.

[0148] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0149] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A mobile charging station, characterized in that: include: A vehicle body (110), wherein a carriage (120) is provided on the vehicle body (110), and the vehicle body (110) has a first direction (D1); and, a DC charging device (130), a power distribution device (140), and an energy storage device (150) sequentially arranged in the carriage (120) along the first direction (D1), wherein the power distribution device (140) is electrically connected to the energy storage device (150) and the DC charging device (130), respectively; Wherein, along the first direction (D1), the length of the carriage (120) is L1, and the length of the energy storage device (150) is L2, satisfying the relationship: 0.35≤L2 / L1≤0.47; the first direction (D1) is the length direction of the vehicle body (110).

2. The mobile charging station according to claim 1, characterized in that The vehicle body (110) further has a second direction (D2) perpendicular to the first direction (D1), and the second direction (D2) is the height direction of the vehicle body (110); A first chassis (121) and a second chassis (122) are provided on the vehicle body (110); the first chassis (121) and the second chassis (122) are arranged along the first direction (D1); and along the second direction (D2), the top of the first chassis (121) is higher than the top of the second chassis (122); A portion of the energy storage device (150) is arranged on the first chassis (121), and another portion of the energy storage device (150) is arranged on the second chassis (122).

3. The mobile charging station according to claim 2, characterized in that Along the first direction (D1), the length of the first chassis (121) is L3, and the length of the second chassis (122) is L4, satisfying the relationship: L1≤L3+L4.

4. The mobile charging station according to claim 2, characterized in that Along the second direction (D2), the difference between the highest point of the top of the first chassis (121) and the highest point of the top of the second chassis (122) is h, satisfying the relationship: 285mm≤h≤360mm.

5. The mobile charging station according to claim 2, characterized in that: The energy storage device (150) comprises: A first battery rack (152), the first battery rack (152) being arranged on the first chassis (121); A second battery rack (153), the second battery rack (153) being arranged on the second chassis (122); A plurality of battery clusters (151), each battery cluster (151) is electrically connected to the power distribution equipment (140), a portion of the battery clusters (151) is arranged on the first battery rack (152), and another portion of the battery clusters (151) is arranged on the second battery rack (153).

6. The mobile charging station according to claim 5, characterized in that: The first battery rack (152) is provided with a plurality of first liquid cooling plates (154a) arranged at intervals, and the plurality of first liquid cooling plates (154a) arranged at intervals separate the first battery rack (152) into N storage spaces (1541); The second battery rack (153) is provided with a plurality of second liquid cooling plates (154b) arranged at intervals. The plurality of second liquid cooling plates (154b) arranged at intervals separate the second battery rack (153) into M storage spaces (1541), satisfying the relationship: N<M; the storage spaces (1541) are used to place battery packs (1511) of the battery cluster (151).

7. The mobile charging station according to claim 6, characterized in that: The length of the storage space (1541) along the first direction (D1) is L d The height of the storage space (1541) along the second direction (D2) is H d The length of the battery pack (1511) along the first direction (D1) is L n The height of the battery pack (1511) along the second direction (D2) is H n , satisfying the relationship: 0.85≤L n / L d ≤0.97, 0.75≤H n / H d ≤0.

95.

8. The mobile charging station according to claim 7, characterized in that: The number of the storage spaces (1541) arranged along the first direction (D1) is W, satisfying the relationship: 0.8≤W×L d / L2≤0.

9.

9. The mobile charging station according to claim 5, characterized in that: The power distribution equipment (140) comprises: a main control device (141), the main control device (141) being electrically connected to the battery cluster (151); A power distribution cabinet (142) is provided on the first chassis (121) and is located on a side of the first battery rack (152) away from the second battery rack (153).

10. The mobile charging station according to any one of claims 1 to 9, characterized in that: The mobile charging station also includes: a cooling device (170), the cooling device (170) being arranged on a side of the DC charging device (130) facing away from the power distribution device (140); Fire-fighting equipment (180), the fire-fighting equipment (180) is arranged on a side of the energy storage device (150) away from the power distribution device (140).

11. The mobile charging station according to claim 10, characterized in that: The vehicle body (110) further has a third direction (D3) perpendicular to the first direction (D1), and the third direction (D3) is the width direction of the vehicle body (110); The fire fighting equipment (180) comprises: A plurality of fire detectors (183) are arranged on opposite sides of the carriage (120) along the third direction (D3).

12. The mobile charging station according to claim 10, characterized in that The cooling device (170) includes a cooling pipeline, and the fire-fighting device (180) includes a fire-fighting pipeline. The cooling pipeline and the fire-fighting pipeline are respectively arranged around the energy storage device (150).

13. The mobile charging station according to claim 10, characterized in that The cooling device (170) further comprises: a liquid cooling machine (171), the liquid cooling machine (171) being arranged on a side of the DC charging device (130) away from the energy storage device (150), the liquid cooling machine (171) being provided with an air inlet (1711), the air inlet (1711) being arranged on a side of the liquid cooling machine (171) away from the DC charging device (130); An air outlet pipe (172), one end of the air outlet pipe (172) is connected to the air inlet (1711), the other end of the air outlet pipe (172) is an air outlet (1721), and the air outlet direction of the air outlet (1721) is perpendicular to the first direction (D1).

14. The mobile charging station according to any one of claims 1 to 9, characterized in that: The DC charging device (130) includes at least one charging gun.

15. The mobile charging station according to any one of claims 1 to 9, characterized in that: An air suction port and an air exhaust port are provided on the side wall of the carriage (120); a dustproof baffle is provided at the air suction port, and an exhaust fan is provided at the exhaust port.

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