Ground service equipment of electric vehicle

Abstract

The utility model discloses ground service equipment of an electric vehicle, and relates to the technical field of ground service support. The electric vehicle ground service equipment comprises a movable carrier; the electric energy driving module is arranged on the movable carrier and used for driving the movable carrier to move; the external charging module is arranged on the movable carrier, and the external charging module is used for charging a battery pack of the electric vehicle; and the energy storage batteries are detachably arranged on the movable carrier, the energy storage batteries are electrically connected with the electric energy driving module and the external charging module respectively, and the specifications of the energy storage batteries are consistent with those of the battery pack. According to the utility model, the guarantee capability of the ground service equipment is improved, and the guarantee cost of the electric vehicle is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ground support, and particularly relates to a ground support device for electric vehicles. Background Art

[0002] With the popularization of electric vehicles such as new energy vehicles, eVTOL (Electric Vertical Takeoff and Landing), and new energy ships, which mainly use electric energy as the power, mobile maintenance equipment such as ground support vehicles is required to charge the electric vehicles. For example, for eVTOL, the airport is equipped with ground support vehicles, which can rely on their own power to move to the ground parking position to charge the eVTOL.

[0003] In the related art, when a battery pack of an electric vehicle such as an eVTOL fails, a new battery pack can be transported to the ground parking position by a maintenance ground support vehicle for battery replacement, and another charging ground support vehicle can charge the eVTOL. However, configuring multiple ground support vehicles has the problem of high support costs. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a ground support device for electric vehicles, aiming to solve the technical problem of high support costs of electric vehicles in the related art.

[0005] To achieve the above object, the utility model proposes a ground support device for electric vehicles, which includes:

[0006] A movable vehicle;

[0007] An electric energy driving module, which is arranged on the movable vehicle and is used to drive the movable vehicle to move;

[0008] An external charging module, which is arranged on the movable vehicle and is used to charge the battery pack of the electric vehicle;

[0009] A plurality of parallel energy storage batteries, which are detachably arranged on the movable vehicle, are respectively electrically connected to the electric energy driving module and the external charging module, and have the same specifications as the battery pack.

[0010] In one embodiment, the external charging module has a battery debugging interface, and the energy storage battery is adapted to be detachably connected to the battery debugging interface.

[0011] In one embodiment, the external charging module includes:

[0012] A charging pile body, which is arranged on the movable vehicle and is detachably connected to the electric vehicle through a pipeline;

[0013] A thermal management module is disposed in a movable vehicle. The thermal management module is configured to communicate with a battery cavity of an electric vehicle to form a battery heat exchange branch when the charging pile body is connected to the electric vehicle, so that an insulating heat exchange fluid in the thermal management module flows in the battery heat exchange branch and fills into the battery cavity.

[0014] In one embodiment, the charging pile body has a device cavity, and a charging module is disposed in the device cavity;

[0015] The thermal management module is further configured to communicate with the device cavity to form a device heat exchange branch, so that the insulating heat exchange fluid flows in the device heat exchange branch and fills into the device cavity.

[0016] In one embodiment, the thermal management module includes a main path, and the main path includes a medium storage tank, a pump, and a heat exchanger that are connected in sequence through pipelines;

[0017] Wherein, the device heat exchange branch and the battery heat exchange branch are connected in parallel and then connected in series to the main path to form a circulation loop; or, the device heat exchange branch, the battery heat exchange branch, and the main path are connected in series to form a circulation loop.

[0018] In one embodiment, the heat exchanger includes a direct evaporation refrigeration cycle device or a semiconductor refrigeration device.

[0019] In one embodiment, the main path further includes a positive temperature coefficient (PTC) heater, or the heat exchanger is connected to a heat pump system, and the heat pump system switches between a refrigeration mode and a heating mode.

[0020] In one embodiment, the thermal management module includes:

[0021] A first thermal management sub-module, which is communicated with the device heat exchange branch;

[0022] A second thermal management sub-module, which is communicated with the battery heat exchange branch.

[0023] In one embodiment, the material of the insulating heat exchange fluid is deionized water, electronic fluorinated liquid, hydrocarbon, ester, or silicone oil.

[0024] In one embodiment, the ground support equipment of the electric vehicle further includes a distribution box, which is disposed on the movable vehicle, and the movable vehicle has a fast charging interface and a slow charging interface;

[0025] The distribution box includes:

[0026] A charger, which is connected to the slow charging interface;

[0027] A plurality of battery interfaces, which correspond to a plurality of energy storage batteries one by one, and the energy storage batteries are detachably connected to the corresponding battery interfaces;

[0028] Multiple battery discharge circuits, the multiple battery discharge circuits correspond one-to-one with multiple battery interfaces, and one end of each battery discharge circuit is connected to the corresponding battery interface, and the other end of each battery discharge circuit is connected to the external charging module;

[0029] Multiple battery charging circuits, the multiple battery charging circuits correspond one-to-one with multiple battery interfaces, and one end of each battery charging circuit is connected to the corresponding battery interface, and the other end of each battery charging circuit is connected to a charger or a fast charging interface.

[0030] In one embodiment, the battery discharge circuit includes a main discharge path and a pre-charge branch connected in parallel. The main discharge path includes a first contactor and a first fuse. The pre-charge branch includes a pre-charge resistor and a second contactor connected in series. The second contactor is used to conduct or cut off the pre-charge branch.

[0031] In one embodiment, the distribution box further includes at least one reserved interface circuit. The reserved interface circuit is connected to at least part of all the battery discharge circuits. The reserved interface circuit includes a third contactor and a third fuse. The third contactor is used to conduct or cut off the reserved interface circuit.

[0032] In one embodiment, the ground handling equipment of the electric vehicle further includes a control module. The control module is arranged on the movable vehicle. The control module is electrically connected to at least part of all the battery discharge circuits, and the control module is respectively communicatively connected to the external charging module, the electric energy drive module, and the thermal management module;

[0033] At least one of the control module, the electric energy drive module, and the energy storage battery defines a cooling channel. The thermal management module is communicated with the cooling channel for an insulating heat exchange fluid to flow in the cooling channel.

[0034] In one embodiment, the movable vehicle includes a carriage. The external charging module and the energy storage battery are both arranged in the carriage. A heat dissipation hole is opened at a position on the side wall of the carriage corresponding to the external charging module;

[0035] In one embodiment, the movable vehicle further includes a rainproof component. The rainproof component is arranged at the heat dissipation hole.

[0036] In one embodiment, the side wall of the carriage is further provided with a battery access hole and a charging gun access hole. The battery access hole is for the energy storage battery to pass through, and the charging gun access hole is for the charging gun of the external charging module to pass through;

[0037] The movable vehicle further includes a first covering member and a second covering member. The first covering member is movably arranged at the battery access hole to open or close the battery access hole. The second covering member is movably arranged at the charging gun access hole to open or close the charging gun access hole.

[0038] In one embodiment, a battery debugging position is further defined inside the carriage, and the battery debugging position is arranged adjacent to the external charging module;

[0039] A hatch opening facing the battery debugging position is provided on the side wall of the carriage;

[0040] The movable vehicle further includes a debugging hatch, which is arranged at the hatch opening to open or close the hatch opening, and the debugging hatch is used for the energy storage battery to pass through.

[0041] In one embodiment, a tool and spare parts box is further arranged inside the carriage, and the tool and spare parts box is arranged adjacent to the battery debugging position.

[0042] In one embodiment, a fireproof layer is provided on the inner wall of the carriage.

[0043] In one embodiment, the fireproof layer is configured as an aerogel fireproof coating or a fireproof paint layer.

[0044] In one embodiment, the movable vehicle further includes a fire extinguishing component.

[0045] In one embodiment, the fire extinguishing component is arranged inside the carriage, and the fire extinguishing component is a perfluoromethylcyclohexanone spraying component.

[0046] In one embodiment, the movable vehicle further includes:

[0047] A chassis, on which a carriage is arranged;

[0048] A towing bar, which is arranged at one end of the chassis in the length direction.

[0049] In the technical solution of the present utility model, the electric energy driving module for driving the movable vehicle to move and the external charging module for charging the battery pack of the electric vehicle are both connected to the energy storage battery. Thus, the electric energy used by both is provided by the energy storage battery, reducing the cost of ground support equipment. And the energy storage battery has the same specification as the battery pack used by the electric vehicle. When the electric vehicle needs to replace the battery pack, the energy storage battery on the ground support equipment can be directly used as a spare part and replaced on the electric vehicle. Therefore, one ground support equipment can provide multiple guarantee capabilities, and the operation of a single ground support equipment can meet the requirements of multiple tasks, thereby improving the guarantee ability of the ground support equipment and reducing the guarantee cost of the electric vehicle.

[0050] In addition, the external charging module has a battery debugging interface, and the energy storage battery is detachably connected to the battery debugging interface. Thus, the energy storage battery can be charged and discharged and debugged through the external charging module, and the battery voltage of the energy storage battery can be adjusted to be the same as the voltage of other battery packs on the electric vehicle to meet the requirements of battery swapping.

[0051] In addition, a thermal management module is integrated in the ground support equipment, so that a ground support equipment has both charging and battery swapping functions and also has a thermal management function, further improving the support capacity of the ground support equipment and reducing the support cost of electric vehicles.

[0052] In addition, during the process of charging an electric vehicle, the thermal management module uses an insulating heat exchange fluid to achieve immersion cooling of the charging module in the device cavity, and can also perform immersion cooling on the battery cells in the battery pack, thereby providing a thermal management function for both the battery pack and the charging module itself to support higher-power charging, and further improving the fast charging speed.

[0053] In addition, the thermal management module can also provide the insulating heat exchange fluid to the control module and / or the electric energy drive module, etc., so as to ensure that the operating temperatures of the control module and / or the electric energy drive module of the ground support equipment itself are maintained within an appropriate temperature range.

[0054] In addition, a pre-charge branch formed by a pre-charge resistor is configured in the battery discharge circuit of the distribution box to achieve the pre-charge function, prevent surges during discharge, and prevent voltage imbalance between different energy storage batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0056] Figure 1 It is a schematic structural diagram of the ground support equipment for an electric vehicle provided by the present invention;

[0057] Figure 2 It is a schematic power supply diagram of the ground support equipment for an electric vehicle provided by the present invention;

[0058] Figure 3 It is a schematic connection diagram of an embodiment of the external charging module of the ground support equipment for an electric vehicle provided by the present invention;

[0059] Figure 4 It is a schematic connection diagram of another embodiment of the external charging module of the ground support equipment for an electric vehicle provided by the present invention;

[0060] Figure 5 It is a schematic connection diagram of yet another embodiment of the external charging module of the ground support equipment for an electric vehicle provided by the present invention;

[0061] Figure 6 Schematic diagram of the parallel connection of the device heat exchange branch and the battery heat exchange branch provided by the present utility model;

[0062] Figure 7 Schematic diagram of the distribution box of the ground support equipment of the electric vehicle provided by the present utility model;

[0063] Figure 8 Schematic diagram of the control and connection of each vehicle-mounted device of the ground support equipment of the electric vehicle provided by the present utility model;

[0064] Figure 9 Schematic diagram of the carriage layout of the ground support equipment of the electric vehicle provided by the present utility model.

[0065] Explanation of the reference numerals in the drawings:

[0066] 01, device heat exchange branch; 02, battery heat exchange branch; 10, eVTOL; 10a, battery cavity; 11, battery cell; 12, first battery cavity hole; 13, second battery cavity hole; 100, movable vehicle; 110, chassis; 120, carriage; 121, battery compartment; 122, external charging module compartment; 123, battery access hole; 124, charging gun access hole; 125, battery debugging compartment; 1251, battery debugging position; 130, towing bar; 140, slow charging interface; 150, fast charging interface; 200, electric energy drive module; 300, external charging module; 310, charging pile body; 311, device cavity; 3111, first device hole; 3112, second device hole; 320, charging module; 330, thermal management module; 330a, first thermal management sub-module; 330b, second thermal management sub-module; 331, medium storage tank; 3311, medium return pipe; 332, pump; 333, heat exchanger; 3331, medium pump-out pipe; 341, gas storage device; 342, gas path valve; 350, charging gun; 361, first three-way pipe; 362, second three-way pipe; 400, energy storage battery; 500, distribution box; 510, charger; 520, battery charging circuit; 530, battery discharging circuit; 531, pre-charge resistor; 532, first positive contactor; 540, reserved interface circuit; 600, control module.

[0067] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0068] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0069] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0070] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0071] With the popularization of electric vehicles such as new energy vehicles, eVTOLs, and new energy ships that use electric energy as the main power, mobile maintenance equipment such as ground support vehicles is required to charge electric vehicles. For example, for eVTOLs, ground support vehicles are configured at airports, and the ground support vehicles can move to the ground parking position by their own power to charge the eVTOLs.

[0072] However, currently, the functions of ground support vehicles for electric vehicles are single, generally only having one of the functions of charging, maintenance, or battery swapping. For example, when a battery pack of an eVTOL fails, a maintenance ground support vehicle can transport a new battery pack to the ground parking position for battery replacement, and another charging ground support vehicle can charge the eVTOL. However, configuring multiple ground support vehicles has the problem of high guarantee costs.

[0073] To this end, the present application provides a solution. The external charging module and the electric energy driving module on the ground support equipment jointly use a large battery pack formed by connecting multiple energy storage batteries in parallel for power supply, and the energy storage batteries are of the same specification as those on the electric vehicle, so that battery swapping services can also be provided to significantly reduce the support cost of electric vehicles such as eVTOL.

[0074] The following further elaborates on the technical concept of the present utility model in conjunction with some specific embodiments.

[0075] Please refer to Figures 1 to 4 , the present utility model provides a ground support equipment for an electric vehicle. The ground support equipment for an electric vehicle includes a movable vehicle 100, an electric energy driving module 200, an external charging module 300, and multiple energy storage batteries 400.

[0076] Among them, the electric energy driving module 200 is arranged on the movable vehicle 100 and is used to drive the movable vehicle 100 to move; the external charging module 300 is arranged on the movable vehicle 100, and the external charging module 300 is used to charge the battery pack of the electric vehicle; multiple energy storage batteries 400 are connected in parallel, the energy storage batteries 400 are detachably arranged on the movable vehicle 100, the energy storage batteries 400 are respectively electrically connected to the electric energy driving module 200 and the external charging module 300, and the energy storage batteries 400 are of the same specification as the battery pack.

[0077] Specifically, the electric vehicle can be a new energy vehicle, a battery car, a drone, an eVTOL 10, a new energy ship, etc. Hereinafter, the electric vehicle is taken as an example of eVTOL 10 for elaboration.

[0078] It can be understood that the eVTOL 10 has at least one battery pack. The battery pack can supply electric energy to the power unit of the eVTOL 10, or can also supply electric energy to on-board systems such as the on-board environmental control system and the on-board lighting system. The battery pack includes a module housing having a battery cavity and a battery cell group installed in the battery cavity. Please refer to Figure 4, in a feasible embodiment, the module housing has a first battery chamber hole 12 and a second battery chamber hole 13 that communicate with the battery chamber 10a. The first battery chamber hole 12 allows an insulating heat exchange fluid to flow in, while the second battery chamber hole 13 allows the insulating heat exchange fluid to flow out. Both the first battery chamber hole 12 and the second battery chamber hole 13 are provided in the upper part of the top wall or the side wall of the module housing. In addition, the module housing is a housing structure with a sealed design, so that the internal battery chamber 10a can be used to fill the insulating heat exchange fluid. When the battery chamber 10a is filled with the insulating heat exchange fluid, the insulating heat exchange fluid can completely submerge the battery cell group, so as to contact the battery cells 11 of the battery cell group for heat exchange, transfer the heat of the battery cells 11 to the module housing, and exchange heat with the external environment through the module housing, which is beneficial to improving the heat dissipation efficiency of the battery cells 11. In addition, the eVTOL 10 also has an airframe interface, which includes an airframe medium inlet hole communicating with the first battery chamber hole 12 and an airframe medium outlet hole communicating with the second battery chamber hole 13. Of course, this airframe interface can be integrated into the charging socket on the eVTOL that cooperates with the charging gun, so as to avoid a significant increase in the weight of the eVTOL and waste of the airframe space of the eVTOL.

[0079] The mobile vehicle 100 is a machine or equipment with mobility and can be used to transport equipment and / or personnel. It can be understood that the mobility includes but is not limited to ground mobility, air mobility, water surface mobility, and underwater mobility. Therefore, the mobile vehicle 100 includes but is not limited to vehicles, ships, and aircraft. Hereinafter, the mobile vehicle 100 is taken as a vehicle, that is, the ground support equipment of the electric vehicle is taken as an example of a ground support vehicle for elaboration.

[0080] The electric energy drive module 200 is the power assembly unit of the mobile vehicle 100. For a ground support vehicle, the electric energy drive module 200 is the key part for the ground support vehicle to convert electric energy into mechanical energy and drive the ground support vehicle to travel. It can be understood that the electric energy drive module 200 includes but is not limited to motors, reducers, inverters, etc.

[0081] The external charging module 300 is a charging assembly unit, which is used to convert other electric energies such as alternating current in the power grid or direct current in the energy storage battery 400 into an electric energy form acceptable to the battery pack of the eVTOL, so as to charge the battery pack of the eVTOL. It can be understood that the external charging module 300 includes but is not limited to a charging module formed by a charging circuit, a charging gun connected to the charging module through a cable, etc.

[0082] The energy storage battery 400 is used to provide the required electric energy for the external charging module 300 and the electric energy drive module 200. In this embodiment, the energy storage battery 400 is detachably connected to the mobile vehicle 100, so that it can be detached from the mobile vehicle 100.

[0083] Moreover, the specifications of the energy storage battery 400 are consistent with those of the battery pack on the eVTOL. Specifically, the consistent specifications mean that the attributes such as the model, size, product parameters, and performance indicators between the energy storage battery 400 and the battery pack conform to the same standards and requirements, so that the two can be interchangeable. In addition, in this embodiment, multiple energy storage batteries 400 are connected in parallel to form a large energy storage module, so that the use of the entire energy storage module is not affected after some of the energy storage batteries 400 are removed. Of course, the parallel connection of multiple energy storage batteries 400 can also meet the demand for rapid charging of multiple eVTOLs.

[0084] It is not difficult to see that compared with the electric energy drive module 200 and the external charging module 300 each using an independent battery for power supply, in this embodiment, the electric energy drive module 200 that drives the movable vehicle 100 to move and the external charging module 300 that charges the battery pack of the electric vehicle are both connected to the energy storage module. Therefore, the electric energy used by both is provided by the same energy storage module, reducing the cost of ground support equipment.

[0085] In addition, since the specifications of the energy storage battery 400 are consistent with those of the battery pack of the electric vehicle, when the battery pack of the electric vehicle needs to be replaced, the energy storage battery 400 on the ground support vehicle can be directly used as a spare part and replaced on the electric vehicle. Thus, a single ground support vehicle can provide multiple guarantee capabilities, and the operation of a single ground support vehicle can meet the requirements of the guarantee task. Furthermore, the guarantee ability of the ground support vehicle is improved and the guarantee cost of the eVTOL is reduced. And by integrating most of the functions required for eVTOL ground support into a single ground support vehicle, the eVTOL can take off and land at airports without original ground support facilities, reducing the airport construction cost and facilitating the popularization and operation of the eVTOL.

[0086] It should be noted that the battery pack of the eVTOL 10 is installed inside the wing of the eVTOL 10 or near the wing of the fuselage, and multiple battery packs are generally connected in parallel to avoid affecting the power supply of other battery packs after a single battery pack is damaged. However, in the case where the battery packs are connected in parallel, different voltages of the battery packs will cause a circuit to form between the battery packs and cause the battery to burn out. Therefore, it is necessary to ensure that the voltages of multiple battery packs are the same. For this reason, in one embodiment, the external charging module 300 has a battery debugging interface, and the energy storage battery 400 is adapted to be detachably connected to the battery debugging interface.

[0087] It can be seen that the external charging module 300 has at least two functions: (1) charging the eVTOL 10; (2) debugging the charge and discharge of the energy storage battery 400. Specifically, during battery swapping, first determine the energy storage battery 400 as a spare part, and connect its positive and negative electrodes to the battery debugging interface of the external charging module 300. Then, charge and discharge the energy storage battery 400 through the external charging module 300 to adjust the voltage of the energy storage battery 400 to be consistent with the voltage of the remaining battery packs on the eVTOL. Finally, replace the energy storage battery 400 onto the eVTOL.

[0088] It is not difficult to see that in this embodiment, during the battery swapping operation, the external charging module 300 on the ground support vehicle can be directly used to adjust the voltage of the energy storage battery 400 to meet the requirements of battery swapping, facilitating the rapid realization of battery swapping. Moreover, during the battery swapping process, there is no need to use other equipment or tooling to debug the battery voltage, thereby further improving the support ability of the ground support vehicle.

[0089] In one embodiment, the external charging module 300 includes: a charging pile body 310 and a thermal management module 330. The charging pile body 310 is disposed on the movable vehicle 100, and the charging pile body 310 is detachably connected to the electric vehicle through a pipeline; the thermal management module 330 is disposed on the movable vehicle 100, and the thermal management module 330 is configured to communicate with the battery cavity of the electric vehicle to form a battery heat exchange branch 02 when the charging pile body 310 is connected to the electric vehicle, so that the insulating heat exchange fluid in the thermal management module 330 flows in the battery heat exchange branch 02 and fills into the battery cavity 10a.

[0090] Please refer to Figure 2 and Figure 3 , wherein, the charging pile body 310 is the main part of the external charging module 300, which includes but is not limited to charging modules such as those for accommodating the internal charging circuit, providing a human-machine interaction panel required for charging, and carrying a charging gun and a charging cable. The thermal management module 330 is used to provide the thermal management function for the battery pack of the eVTOL during charging. The thermal management module 330 can be disposed inside the charging pile body 310 or outside the charging pile body 310. For example, in one example, the charging pile body 310 includes a housing, and a thermal management module installation space is separated inside the housing, and the thermal management module 330 can be installed in the thermal management module installation space. At this time, when maintaining the ground support vehicle, the external charging module 300 can be disassembled as a whole by hoisting the housing, so as to improve the maintenance efficiency of the ground support vehicle itself in a modular manner. Or, the thermal management module 330 can also be disposed on the side of the charging pile body 310, or disposed on the movable vehicle 100 at an interval from the charging pile body 310, and this embodiment does not limit this.

[0091] In this embodiment, the thermal management module 330 is configured to provide an insulating heat exchange fluid and includes a heat exchange component that drives the insulating heat exchange fluid to flow in the battery heat exchange branch 02. The insulating heat exchange fluid is a coolant, which can absorb and carry away heat during the flow process. When the charging pile body 310 is connected to the eVTOL 10 through a charging gun, the thermal management module 330 communicates with the battery cavity 10a on the eVTOL 10, thereby forming a battery heat exchange branch 02 for the insulating heat exchange fluid to flow through. When the insulating heat exchange fluid enters the battery cavity 10a through the first battery cavity hole 12, it can directly contact the battery cells in the battery cavity 10a, thereby performing thermal management on the battery cells 11, and then flowing out along the second battery cavity hole 13. Thus, this embodiment provides immersion cooling for the battery cells 11 of the battery pack, improving the thermal management efficiency.

[0092] The insulating heat exchange fluid is an insulating and non-flammable coolant. In one embodiment, the insulating heat exchange fluid is made of deionized water, electronic fluorinated liquid, hydrocarbon, ester, or silicone oil. Thus, the insulating heat exchange fluid has the characteristics of high insulation, high specific heat capacity, high thermal conductivity, non-combustibility, non-flammability, non-toxicity, and low chemical activity. In addition, even if the insulating heat exchange fluid leaks in this embodiment, safety problems can be avoided. Optionally, in one implementation, the electronic fluorinated liquid is configured as hydrofluoroether or hydrofluoroolefin. Optionally, in one implementation, the hydrocarbon is configured as mineral oil or synthetic hydrocarbon oil, such as transformer oil. Optionally, in one implementation, the ester is configured as triglyceride or synthetic ester. Optionally, in one implementation, the silicone oil is configured as dimethyl silicone oil.

[0093] It is worth mentioning that the insulating heat exchange fluid in the battery pack is input into the battery pack by the thermal management module 330 only when the eVTOL 10 is being charged, so that the insulating heat exchange fluid directly contacts the battery cells in the battery pack to conduct heat exchange, thereby changing the temperature of the battery pack. Alternatively, in a feasible implementation, the battery pack is also filled with a battery heat exchange medium to form immersion cooling for the battery cells in the battery cavity 10a, thereby forming an immersion-cooled battery pack. Thus, during the flight of the eVTOL 10, the battery cells in the immersion-cooled battery pack are cooled by the battery heat exchange medium. And the material of the battery heat exchange medium is the same as that of the insulating heat exchange fluid. Therefore, the thermal management module in this embodiment can be compatible with the immersion-cooled battery pack, that is, when the thermal management module 330 communicates with the battery cavity 10a, the insulating heat exchange fluid and the battery heat exchange medium can be directly fused and mixed without first emptying the battery heat exchange medium in the battery cavity 10a and then inputting the insulating heat exchange fluid, thereby improving the maintenance convenience and reducing the maintenance difficulty.

[0094] It can be easily seen that in this embodiment, the thermal management module 330 can communicate with the battery cavity 10a in the eVTOL 10 to form a battery heat exchange branch 02, so that during the charging process of the eVTOL 10, the battery cells 11 in the battery pack are immersed and cooled by the insulating heat exchange fluid, thereby providing a thermal management function for the battery pack to support higher-power charging and further improving the fast charging speed.

[0095] In addition, please refer to Figure 3 and Figure 4 , in one embodiment, the charging pile body 310 has a device cavity 311, and the charging module 320 is arranged in the device cavity 311; the thermal management module 330 is further configured to communicate with the device cavity 311 to form a device heat exchange branch 01 for the insulating heat exchange fluid to flow in the device heat exchange branch 01 and enter the device cavity.

[0096] There is a device cavity 311 in the charging pile body 310, and the device cavity 311 is used to install the charging module that provides charging services. It can be understood that the charging module 320 includes, but is not limited to, a fast charging circuit and / or a slow charging circuit, and a charging control circuit that controls the fast charging circuit and / or the slow charging circuit to provide charging services. Among them, the fast charging circuit is used to provide fast charging services, and the slow charging circuit is used to provide ordinary charging services. In one example, the charging module 320 further includes a detection circuit and an isolation circuit, etc. The charging module 320 includes charging power devices such as a DC-DC converter, an AC-DC converter, a battery, a capacitor, an inductor, an induction coil, a rectifier bridge, a high-voltage bus, a switching tube, a fuse protector, and a diode. It can be understood that when all the charging power devices of the charging module 320 are integrated in one chamber, the device cavity 311 can be one chamber. Or, when all the charging power devices of the charging circuit are distributed in multiple chambers, the device cavity 311 can also be a connected body formed by connecting multiple chambers through pipelines, and this embodiment does not limit this. It is worth mentioning that the device cavity 311 is a chamber with a sealed design, so as to separate the environment inside the device cavity from the environment outside the device cavity to prevent the insulating heat exchange fluid from leaking from the device cavity 311 when flowing in the device cavity 311. In addition, the chamber structure of the device cavity 311 with a sealed design can also make the insulating heat exchange fluid completely fill the device cavity 311 and completely submerge various charging modules 320. The device cavity 311 can be filled with the insulating heat exchange fluid. Of course, it can also be that the insulating heat exchange fluid submerges all the charging power devices. The insulating heat exchange fluid exchanges heat with each charging power device in the device cavity 311 to cool each charging power device. Please refer to Figure 2, It can be understood that inside the charging pile body 310, there are a first device hole 3111 and a second device hole 3112 communicating with the device cavity 311. The first device hole 3111 is for the insulating heat exchange fluid to flow in, while the second device hole 3112 is for the insulating heat exchange fluid to flow out. Of course, in order to enable the insulating heat exchange fluid to completely submerge the charging module 320, both the first device hole 3111 and the second device hole 3112 are also provided on the top wall or the upper part of the side wall of the device cavity 311. In addition, corresponding flow channels or flow guiding structures can be provided inside the charging pile body 310 to ensure that the insulating heat exchange fluid circulates to each charging module 320 to ensure the immersion effect.

[0097] Since both the charging module 320 and the battery cells 11 of the battery pack will generate heat during charging, in this embodiment, immersion cooling is provided for both the charging module 320 in the device cavity 311 and the battery cells 11 of the battery pack to improve the thermal management efficiency.

[0098] Specifically, the thermal management module 330 communicates with the device cavity 311, thus forming a device heat exchange branch 01. At this time, the cooled insulating heat exchange fluid enters the device cavity 311 through the first device hole 3111 and directly contacts each charging power device in the device cavity 311, thereby taking away the heat generated by the charging module 320 and rising in temperature. The insulating heat exchange fluid with increased temperature leaves the device cavity 311 through the second device hole 3112 and continues to move forward along the device heat exchange branch 01, thereby taking away the heat from the device cavity 311.

[0099] It is not difficult to see that in this embodiment, the thermal management module 330 not only communicates with the device cavity 311 where the charging module 320 is installed to form the device heat exchange branch 01, but also can communicate with the battery cavity 10a in the eVTOL 10 to form a battery heat exchange branch 02. Thus, during the charging process of the eVTOL 10, immersion cooling is realized for the charging module 320 in the device cavity 311 through the insulating heat exchange fluid, and immersion cooling can also be provided for the battery cells 11 in the battery pack. In this way, during the charging process such as fast charging, the battery pack can always be maintained within a certain temperature range, meeting the requirements of fast charging while maintaining the temperature uniformity of the battery pack.

[0100] In addition, compared with the strict requirements of eVTOL10 for space and weight, the ground support vehicle has sufficient spare space and weight to install a thermal management module 330 with greater power, which is beneficial to improving the thermal management effect on the battery pack. And since the thermal management function of the battery pack during charging is provided by the thermal management module 330 on the ground support vehicle, the thermal management device of eVTOL10 itself can provide thermal management services only when the battery pack is discharging and does not need to be started during charging, that is, eVTOL10 can carry a thermal management device with a smaller power compared to the related art, thereby reducing the space and weight occupied by the thermal management device on eVTOL10. Of course, since the thermal management device of eVTOL10 itself does not need to be started during charging, it can also make eVTOL10 more energy-efficient.

[0101] In addition, in addition to providing immersion cooling for the battery pack, the thermal management module of this embodiment also uses immersion cooling technology to directly immerse and cool components such as charging power devices, with better cooling effect, simpler structure, and solves the complex problems of low indirect cooling efficiency in traditional liquid cooling technology, and the need for liquid leakage prevention design and insulation design in specific structural design.

[0102] Please refer to Figure 4 , in an embodiment, the thermal management module 330 may include a first thermal management sub-module 330a and a second thermal management sub-module 330b. The first thermal management sub-module 330a is connected to the device heat exchange branch 01, and the second thermal management sub-module 330b is connected to the battery heat exchange branch 02. The first thermal management sub-module 330a and the second thermal management sub-module 330b each have an independent heat exchange system, so as to independently adjust the temperature of the insulating heat exchange fluid in the corresponding branch. In this way, the temperature control in the battery heat exchange branch 02 and the device heat exchange branch 01 is independent of each other and does not affect each other, so as to improve safety and reduce the complexity of the temperature control program.

[0103] Or, please refer to Figure 5 , in an embodiment, the thermal management module 330 includes a main path, and the main path includes a medium storage tank 331, a pump 332, and a heat exchanger 333 that are connected in sequence through pipelines. Among them, the medium storage tank 331 can be configured as an expansion tank, and an insulating heat exchange fluid is stored therein. The capacity of the expansion tank needs to be determined according to all heat exchange requirements and a certain margin is reserved. The pump 332 is used to drive the insulating heat exchange fluid to flow in the battery heat exchange branch 02 and / or the device heat exchange branch 01. The power of the pump 332 is calculated according to the flow resistance. The pump 332 can be integrated inside the heat exchanger 333. The heat exchanger 333 is used to exchange heat for the insulating heat exchange fluid. When the insulating heat exchange fluid flows through the heat exchanger 333, under the action of the heat exchanger 333, the temperature of the insulating heat exchange fluid changes, so that the temperature difference between the insulating heat exchange fluid and the battery cell 11 and / or the charging module 320 is relatively large, so that heat exchange can be carried out on them.

[0104] In an alternative embodiment, the heat exchanger 333 includes a direct evaporation refrigeration cycle device. Thus, the heat exchanger 333 can adjust the temperature of the insulating heat exchange fluid, and regulate the temperature of the battery pack and the device chamber 311 by adjusting the temperature of the insulating heat exchange fluid. However, this embodiment is not limited thereto. In other embodiments, the heat exchanger 333 adjusts the temperature of the insulating heat exchange fluid through an indirect water circulation refrigeration device, an absorption refrigeration device, or a semiconductor refrigeration device.

[0105] It can be understood that in some low-temperature usage environments such as high latitudes, the low temperature will inevitably affect the normal operation of the battery pack and / or the charging module 320. For example, in an alternative embodiment, the main path further includes a PTC (Positive Temperature Coefficient) heater (not shown). Or, in another alternative embodiment, the heat exchanger 333 is connected to a heat pump system, and the heat pump system switches between a refrigeration mode and a heating mode. Thus, through the PTC heater, or when the heat pump system is in the heating mode, the insulating heat exchange fluid flowing through the main path can also be heated. In this way, the thermal management module 330 can not only heat the insulating heat exchange fluid but also cool the insulating heat exchange fluid, thereby adapting to various temperature conditions, that is, improving the environmental adaptability of the thermal management module. Of course, in some other alternative embodiments, a phase change module is provided in the battery pack of the eVTOL and a heat exchange module is thermally connected to the phase change module. Thus, the eVTOL can use the battery pack as a heat source for the aircraft temperature control system to control the temperature of the cabin. At this time, through the mode switching of the PTC heater and / or the heat pump system, and the battery heat exchange branch, the phase change module in the battery pack is pre-heated or cooled, so that the phase change material is transformed into the phase state required for the flight mission. In this way, during the flight, the phase change material can exchange heat with the refrigerant in the aircraft temperature control system, that is, the phase change material stores the heat transferred out of the cabin, or the phase change material transfers the pre-stored heat to the cabin, so that the phase change material in the battery pack can meet various temperature control scenarios of the eVTOL, thereby improving the reliability and adaptability of the aircraft.

[0106] Specifically, the expansion tank has a first tank opening and a second tank opening. The first tank opening is connected to the pump 332 through a pipeline, and the outlet of the pump 332 is connected to the heat exchanger 333 through a pipeline. Please refer to Figure 6 , and the heat exchanger 333 has a medium pump-out pipe 3331. The second tank opening is connected to a medium return pipe 3311. At this time, the medium return pipe 3311, the expansion tank, the pump 332, the heat exchanger 333, and the medium pump-out pipe 3331 are sequentially connected in series to form the main path of this embodiment.

[0107] As an alternative embodiment, the device heat exchange branch 01 and the battery heat exchange branch 02 are connected in parallel and then in series to the main path to form a circulation loop. Specifically, please refer to Figure 6 , the dielectric pump outlet pipe 3331 is connected to a first three-way pipe 361. One interface of the first three-way pipe 361 is connected to the battery chamber 10a through a pipeline in a switchable manner, and the other interface of the first three-way pipe 361 is connected to the device chamber 311 through a pipeline; similarly, the dielectric return pipe 3311 is connected to a second three-way pipe 362. One interface of the second three-way pipe 362 is connected to the battery chamber 10a through a pipeline in a switchable manner, and the other interface of the second three-way pipe 362 is connected to the device chamber 311 through a pipeline. In this way, when the charging pile body is connected to the eVTOL, one interface of the first three-way pipe 361, the battery chamber 10a, and one interface of the second three-way pipe 362 constitute the battery heat exchange branch 02, while the other interface of the first three-way pipe 361, the device chamber 311, and the other interface of the second three-way pipe 362 constitute the device heat exchange branch 01.

[0108] In this embodiment, when the charging pile body is connected to the eVTOL, the device heat exchange branch 01 and the battery heat exchange branch 02 are connected in parallel and then in series to the main path to form a circulation loop. At this time, the pump transports the insulating heat exchange fluid into the heat exchanger 333 for cooling. After cooling, the insulating heat exchange fluid is divided into two paths at the first three-way pipe 361 after passing through the dielectric pump outlet pipe 3331:

[0109] Device heat exchange branch 01: The insulating heat exchange fluid passes through the first device hole 3111 and enters the device chamber 311, directly contacts the charging module 320 for heat exchange and then warms up. The warmed insulating heat exchange fluid sequentially passes through the second device hole 3112 and the pipeline and returns to the second three-way pipe 362, and then returns to the expansion tank through the dielectric return pipe 3311.

[0110] Battery heat exchange branch 02: The insulating heat exchange fluid enters the battery chamber 10a, directly contacts the battery cell 11 for heat exchange and then warms up. The warmed insulating heat exchange fluid returns to the second three-way pipe 362 through the second battery chamber hole 13, and then returns to the expansion tank through the dielectric return pipe 3311.

[0111] In this embodiment, the device heat exchange branch 01 and the battery heat exchange branch 02 are connected in parallel to the same main path. In this way, the insulating heat exchange fluid transported from the main path is divided into two paths and enters the device heat exchange branch 01 and the battery heat exchange branch 02. Therefore, the insulating heat exchange fluid cooled by the heat exchanger 333 can enter the device heat exchange branch 01 or the battery heat exchange branch 02 for heat exchange as soon as possible. The insulating heat exchange fluids in the two branches do not affect each other, and the cooling effects of the insulating heat exchange fluids in the two branches can be ensured.

[0112] Alternatively, as another optional implementation, the device heat exchange branch 01 and the battery heat exchange branch 02 are connected in series with the main path to form a circulation loop.

[0113] Please refer to Figure 5 , as an option in this implementation: the dielectric pump-out pipe 3331 is connected to the first battery cavity hole 12 of the battery cavity 10a through the communication pipe between the ground support vehicle and the eVTOL 10. The second battery cavity hole 13 of the battery cavity 10a is connected to the first device hole 3111 of the device cavity 311 through another communication pipe, and the second device hole 3112 of the device cavity 311 is connected to the dielectric return pipe 3311. At this time, the main path, the battery heat exchange branch 02 and the device heat exchange branch 01 are connected in series in sequence, and the three form a circulation loop. The insulating heat exchange fluid pumped out by the main path first enters the battery heat exchange branch 02, then enters the device heat exchange branch 01, and finally flows into the main path.

[0114] Or as another option in this implementation: the dielectric return pipe 3311 is connected to the second battery cavity hole 13 of the battery cavity 10a through the communication pipe between the eVTOL and the ground support vehicle. The first battery cavity hole 12 of the battery cavity 10a is connected to the second device hole 3112 of the device cavity 311 through another communication pipe, and the first device hole 3111 of the device cavity 311 is connected to the dielectric pump-out pipe 3331. At this time, the main path, the device heat exchange branch 01 and the battery heat exchange branch 02 are connected in series in sequence, and the three form a circulation loop. The insulating heat exchange fluid pumped out by the main path first enters the device heat exchange branch 01.

[0115] It is not difficult to see that compared with the parallel connection method, the pipeline connection of the series connection method is simpler. It should be noted that since the temperature tolerated by the charging module 320 is higher than the temperature tolerated by the battery cells 11 in the battery pack, it is preferably that the battery heat exchange branch 02 is connected in series upstream of the device heat exchange branch 01. In this way, the insulating heat exchange fluid cooled by the heat exchanger 333 first flows through the battery heat exchange branch 02 to cool the battery cells, and then flows through the device heat exchange branch 01 to cool the charging module 320. In this method, the parameters of the insulating heat exchange fluid can be designed corresponding only with the cooling requirements of the battery cells as the control target, without comprehensively considering the cooling requirements of the battery cells 11 and the charging module 320. In this way, not only can the cooling effect of the battery be ensured preferentially, but also the complexity of the temperature control of the insulating heat exchange fluid can be reduced.

[0116] In this embodiment, both the device heat exchange branch 01 and the battery heat exchange branch 02 are temperature-controlled by the heat exchanger 333 on the same main path, reducing the number of components of the thermal management module 330. In addition, both the device heat exchange branch 01 and the battery heat exchange branch 02 being temperature-controlled by the heat exchanger 333 on the same main path can also reduce the volume and weight of the thermal management module 330, thus facilitating the miniaturization of the thermal management module 330, and further facilitating the integration of the thermal management module into the ground support vehicle.

[0117] Understandably, after the charging of the battery pack is completed, it may be necessary to discharge the insulating heat exchange fluid from the battery chamber 10a. Therefore, in one embodiment, the thermal management module 330 further includes an inflation and fluid replacement assembly, which is connected to the battery heat exchange branch and is used to input non-combustible gas into the battery chamber 10a to discharge the insulating heat exchange fluid from the battery chamber 10a.

[0118] In this way, when the temperature of the battery pack is adjusted to the preset temperature or when it is fully charged, during the flight takeoff preparation stage of the eVTOL, non-combustible gas can be introduced into the battery heat exchange branch through the inflation and fluid replacement assembly. After the non-combustible gas enters the battery chamber 10a through one of the first battery chamber holes 12 and the second battery chamber holes 13, the insulating heat exchange fluid inside is extruded from the battery chamber 10a through the other of the first battery chamber holes 12 and the second battery chamber holes 13. On the one hand, the insulating heat exchange fluid in the battery chamber 10a is discharged, and on the other hand, during the flight of the eVTOL, the battery chamber 10a is filled with non-combustible gas to suppress the combustion of the battery chamber 10a when a thermal runaway occurs in the battery chamber 10a.

[0119] Alternatively, when it is necessary to repair and maintain the circuit in the device chamber 311 or for other reasons to discharge the insulating heat exchange fluid, it is also necessary to discharge the insulating heat exchange fluid in the device chamber 311. For this purpose, in one embodiment, the thermal management module 330 further includes an inflation and fluid replacement assembly, which is connected to the device heat exchange branch 01 and is used to input non-combustible gas into the device chamber 311 to discharge the insulating heat exchange fluid from the device chamber 311.

[0120] Specifically, when it is necessary to discharge the insulating heat exchange fluid, non-combustible gas can be introduced into the device heat exchange branch through the inflation and fluid replacement assembly. After the non-combustible gas enters the device chamber 311 through one of the first device holes 3111 and the second device holes 3112, the insulating heat exchange fluid inside is extruded from the device chamber 311 through the other of the first device holes 3111 and the second device holes 3112, thereby discharging the insulating heat exchange fluid in the device chamber 311.

[0121] Certainly, in some feasible embodiments, when the battery heat exchange branch and the device heat exchange branch are in series, the insulating heat exchange fluids in both the battery chamber 10a and the device chamber 311 can be discharged simultaneously through one inflation and drainage assembly. It should be noted that when the inflation and drainage assembly is working, the insulating heat exchange fluid can return to the expansion tank under the action of the non-combustible gas. Of course, the insulating heat exchange fluid can also be discharged to the outside.

[0122] The non-combustible gas in this embodiment refers to a gas other than combustible gas and combustion-supporting gas. In one embodiment, the non-combustible gas includes one or more of inert gas, nitrogen, carbon dioxide, and sulfur hexafluoride.

[0123] Specifically, please refer to Figure 5 , the inflatable liquid replacement assembly includes a gas storage device 341 and a gas path valve 342 that are sequentially connected through a pipeline. The gas storage device 341 can be a high-pressure gas storage device, and the gas path valve 342 is a pressure reducing valve. In this way, the gas storage device 341 has a relatively high air pressure. Under the action of the high air pressure, the non-combustible gas will enter the battery chamber 10a in the eVTOL along the pipeline. After the non-combustible gas enters the battery chamber 10a, it squeezes the insulating heat exchange fluid, so that the insulating heat exchange fluid is discharged from the battery chamber 10a. In addition, under the action of the pressure reducing valve, the high-pressure non-combustible gas in the gas storage device 341 can be depressurized and released to avoid the pipeline from bearing too high air pressure, thereby avoiding damage to the pipeline, the battery cells 11 in the battery chamber 10a, and the charging module 320 in the device chamber 311.

[0124] In one embodiment, the ground support equipment of the electric vehicle further includes a distribution box 500. The distribution box 500 is arranged on the movable vehicle 100, and the movable vehicle 100 has a fast charging interface 150 and a slow charging interface 140. The distribution box 500 is used to provide the circuit distribution function and protection function in the ground support vehicle. Its main function is to distribute the electric energy of the energy storage battery 400 to each load (the electric energy drive module 200, the external charging module 300 or other vehicle-mounted devices) through different circuits. Among them, the fast charging interface 150 is an interface provided on the movable vehicle 100 that can support fast charging technology. It allows the ground support vehicle to receive fast charging direct current in a short time when it is connected to a ground charging pile or other ground support vehicles. The slow charging interface 140 is an electrical interface provided on the movable vehicle 100 for connecting to an AC charging pile for slow charging. Of course, the movable vehicle 100 can be configured with only one of the fast charging interface 150 and the slow charging interface 140.

[0125] Specifically, please refer to Figure 6 , the distribution box 500 includes: a charger 510, a plurality of battery interfaces, a plurality of battery discharge circuits 530, and a plurality of battery charging circuits 520. The charger 510 is connected to the slow charging interface 140; the plurality of battery discharge circuits 530 correspond to the plurality of battery interfaces one by one, and one end of each battery discharge circuit 530 is connected to the corresponding battery interface, and the other end of each battery discharge circuit 530 is connected to the external charging module 300; the plurality of battery charging circuits 520 correspond to the plurality of battery interfaces one by one, and one end of each battery charging circuit 520 is connected to the corresponding battery interface, and the other end of each battery charging circuit 520 is connected to the charger 510 or the fast charging interface 150.

[0126] Among them, the battery interface is a terminal connected to the energy storage battery 400, which includes but is not limited to physical interfaces and electrical interfaces. The number of battery interfaces is determined according to the maximum number of energy storage batteries 400 configured in the ground support vehicle. Optionally, the energy storage battery 400 and the corresponding battery interface can be connected by a quick-release structure, so that the energy storage battery 400 can be quickly removed during eVTOL battery swapping to improve the battery swapping speed. Each battery interface is connected to two circuits: the battery discharge circuit 530 and the battery charging circuit 520. The other end of the battery discharge circuit 530 is connected to the external charging module 300, so as to deliver the electric energy during the discharge of the energy storage battery 400 to the external charging module 300. And the other end of the battery charging circuit 520 is connected to the charger 510 or the fast charging interface 150. The charger 510 is an in-vehicle charger arranged in the distribution box 500. In one embodiment, its power is less than or equal to 6.6KW. It is connected to the slow charging interface 140 to convert alternating current into direct current, and then supplies power to each energy storage battery 400 through the battery charging circuit 520.

[0127] The battery discharge circuit 530 is configured with a positive contactor and a negative contactor, so that the battery discharge circuit 530 where it is located can be turned on or off. And the battery charging circuit 520 is configured with a positive contactor and a negative contactor, so that the battery charging circuit 520 where it is located can be turned on or off. Thus, by controlling the state switching of the positive contactors in each circuit, the charge and discharge states of the corresponding energy storage battery can be switched.

[0128] Of course, in order to ensure the safety of the circuit, fuses are provided in both the battery charging circuit 520 and the battery discharge circuit 530. In addition, since the external charging module 300 integrates protection circuits such as fuses and contactors, only a fuse can be configured between the external charging module 300 and the battery discharge circuit 530 for protection, without the need to configure a contactor. Of course, a contactor and a fuse can also be configured at the same time.

[0129] In one embodiment, the battery discharge circuit 530 includes a parallel discharge main path and a pre-charge branch. The discharge main path includes a first contactor 532 and a first fuse. The pre-charge branch includes a series connection of a pre-charge resistor 531 and a second contactor, and the second contactor is used to turn on or off the pre-charge branch.

[0130] Please refer to Figure 6It can be understood that the pre-charging branch has a pre-charging resistor 531, which is used to limit the current in the circuit to a suitable range before the subsequent external charging module 300 is powered on, so as to avoid surges caused by transient large currents from damaging the first contactor 532 and / or the first fuse. Among them, the first contactor 532 can be a positive contactor. In addition, since the pre-charging branch limits the current, it can also balance the voltages between different energy storage batteries 400 to a certain extent, preventing the voltage imbalance between different energy storage batteries 400 from causing a loop, thereby improving the circuit safety.

[0131] In one embodiment, the distribution box 500 also includes at least one reserved interface circuit 540, which is connected to at least part of all battery discharge circuits 530. The reserved interface circuit 540 includes a third contactor and a third fuse, and the third contactor is used to turn on or off the reserved interface circuit 540.

[0132] Since eVTOL maintenance involves various matters in various aspects, various power supply operations may be involved in the specific work process, such as powering various special maintenance tools or other on-board equipment. In this embodiment, the distribution box 500 is provided with at least one reserved interface circuit 540, so that the function expansion can be achieved through the reserved interface circuit 540 to power the aforementioned various special maintenance tools or other on-board equipment, so as to further improve the support capability of the ground handling vehicle.

[0133] See also Figure 1 , Figure 5 , Figure 7 and Figure 8 In one embodiment, the electric vehicle ground support equipment also includes a control module 600, which is arranged in the movable vehicle 100, and the control module 600 is electrically connected to at least part of all battery discharge circuits 530, and the control module 600 is respectively communicated with the external charging module 300, the electric energy drive module 200 and the thermal management module 330; a cooling channel is defined in at least one of the control module 600, the electric energy drive module 200 and the energy storage battery 400, and the thermal management module 330 is connected to the cooling channel to allow the insulating heat exchange fluid to flow in the cooling channel.

[0134] Specifically, the control module 600 in this embodiment is an all-in-one controller, which includes but is not limited to a motor controller, a charging pile controller, a thermal management controller, a low-voltage battery charger, an inverter, etc., so that the remaining on-board equipment on the ground handling vehicle can be controlled by the control module 600. In this embodiment, multiple controllers are integrated to improve the equipment integration of the ground handling vehicle. And at least part of all the energy storage batteries 400 are used to power the control module 600.

[0135] It should be noted that since the ground support vehicle has multiple functions, corresponding control strategies should be pre-configured in the control module 600 from the perspective of safe operation to prohibit the simultaneous activation of multiple functions. That is, multiple functions are mutually exclusive. For example, when the ground support vehicle is in a drivable state, functions such as charging the energy storage battery 400, charging the eVTOL, and debugging the energy storage battery 400 should be completely prohibited. Similarly, when charging the energy storage battery 400, functions such as vehicle driving, charging the eVTOL, and debugging the energy storage battery 400 should be prohibited.

[0136] In addition, please refer to Figure 5 , a cooling channel can be defined within the control module 600. The cooling channel is disposed adjacent to or surrounding heat-generating components such as the processor within the control module 600. Thus, when the thermal management module 330 provides the cooled insulating heat exchange fluid, the cooled insulating heat exchange fluid flows through the cooling channel to cool the heat-generating components within the control module 600. That is to say, in this embodiment, the cooling function of the control module 600 itself within the ground support vehicle, the cooling function of the charging pile itself, and even the thermal management function of the battery are all integrated into the thermal management module 330 of the ground support vehicle, thereby improving the functional integration degree inside the ground support vehicle.

[0137] In addition, please refer to Figure 5 , corresponding cooling channels can also be defined within the electric energy drive module 200. The cooling channels are arranged inside the electric energy drive module 200, such as inside the motor. Thus, when the thermal management module 330 provides the cooled insulating heat exchange fluid, the insulating heat exchange fluid flows through the cooling channels to absorb and carry away the heat inside the electric energy drive module 200. That is to say, in this embodiment, the cooling function of the electric energy drive module 200 itself within the ground support vehicle, the cooling function of the charging pile itself, and even the thermal management function of the battery are all integrated into the thermal management module 330 of the ground support vehicle, thereby improving the functional integration degree inside the ground support vehicle.

[0138] In addition, please refer to Figure 5 , corresponding cooling channels can also be defined within the energy storage battery 400. The cooling channels are arranged between the battery cells. Thus, when the thermal management module 330 provides the cooled insulating heat exchange fluid, the insulating heat exchange fluid flows through the cooling channels to absorb and carry away the heat inside the battery cells. That is to say, in this embodiment, the cooling function of the battery itself within the ground support vehicle, the cooling function of the electric energy drive module 200 itself, the cooling function of the charging pile itself, and even the thermal management function of the battery on the eVTOL are all integrated into a thermal management module 330 of the ground support vehicle, thereby improving the functional integration degree inside the ground support vehicle.

[0139] It can be understood that the above-mentioned cooling channels are provided in the electric energy driving module 200, the control module 600 and the energy storage battery 400, and are all communicated with the thermal management module 330. At this time, the cooling channels in the three can be connected in parallel with each other to form a motor cooling channel, a control cooling channel and a battery cooling channel, or can be connected in series with each other to form a vehicle cooling channel. This embodiment does not limit this. Of course, in one embodiment, at least one of the electric energy driving module 200, the control module 600 or the energy storage battery 400 is provided with an air cooling structure.

[0140] It can be seen that in this embodiment, the thermal management functions of other vehicle-mounted devices of the ground handling vehicle can be integrated into the thermal management module 330, thereby improving the functional integration degree inside the ground handling vehicle.

[0141] In one embodiment, the movable vehicle 100 includes a carriage 120. The external charging module 300 and the energy storage battery 400 are both arranged in the carriage 120. A heat dissipation hole (not shown) is provided at a position on the side wall of the carriage 120 corresponding to the external charging module 300.

[0142] Specifically, when the movable vehicle 100 is a vehicle, it includes a chassis 110 and a superstructure. The chassis 110 can be a truck chassis, a pickup chassis, an MPV (Multi-Purpose Vehicle) chassis, etc. The chassis 110 includes a vehicle body, a cab, tires, a steering system, a hydraulic component, an air pump component, and a braking system, etc. In addition, the aforementioned control module 600 and electric energy driving module 200 are also installed on the chassis 110. Please refer to Figure 1 , in one example, a towing bar 130 can be arranged at one end in the length direction of the chassis 110, such as the tail, so that the ground handling vehicle also has a towing function, further increasing the functions of the ground handling vehicle and improving the support ability of a single ground handling vehicle.

[0143] The superstructure includes a carriage 120, an energy storage battery 400, a distribution box 500, an external charging module 300, etc. The carriage 120 is a part for loading equipment installed on the chassis 110 part. In one example, the carriage 120 is a closed container or a semi-closed container with a rectangular cross-section.

[0144] In order to prevent vehicle-mounted devices such as the external charging module 300 on the ground handling vehicle from being exposed to the external environment and affecting the use, the energy storage battery 400 and the external charging module 300 are both installed in the carriage 120.

[0145] Please refer to Figure 9, in one embodiment, several chambers can be separated in the carriage 120 by partitions, including a battery compartment 121 and an external charging module compartment 122. For example, the battery compartment 121 and the external charging module compartment 122 are arranged in sequence along the length direction of the carriage 120. Of course, in other embodiments, the battery compartment 121 and the external charging module compartment 122 can also be arranged along the width direction of the carriage 120, and this embodiment does not limit this. All the energy storage batteries 400 are installed in the battery compartment 121. Of course, most of the energy storage batteries 400 can also be installed in the battery compartment 121, and 1 to 2 small parts of the energy storage batteries 400 are installed in other parts of the carriage 120 for backup use. The external charging module 300 is installed in the external charging module compartment 122.

[0146] It can be seen that in this embodiment, the energy storage battery 400 used to drive the vehicle forward is not installed in the chassis 110 part of the vehicle, but in the carriage 120. Compared with the layout method where the energy storage battery 400 is installed on the chassis 110, the ground clearance is higher, improving the passing ability of the chassis 110 of the ground handling vehicle, which is beneficial for the ground handling vehicle to adapt to eVTOL support and emergency rescue and repair work under various field road conditions.

[0147] The heat dissipation holes can be arranged directly opposite to the external charging module 300. For example, heat dissipation holes communicating with the external charging module compartment 122 are provided on the side wall of the carriage 120, so that the waste heat generated when the external charging module 300 is working can be dissipated into the external air through the heat dissipation holes. The heat dissipation holes can include a plurality of round holes, square holes, long strip holes or other hole structures arranged in an array, and this embodiment does not limit this. In other embodiments, the heat dissipation holes can also be configured as a louver structure.

[0148] The heat dissipation holes can include multiple groups. For example, two groups of heat dissipation holes are respectively arranged on the two side walls in the width direction of the carriage 120 to form convective air. For example, in one embodiment, a group of heat dissipation holes are constructed on both opposite side walls of the external charging module compartment 122, and the two groups of heat dissipation holes enable air convection in the external charging module compartment 122, further improving the heat dissipation effect.

[0149] In addition, in order to ensure the reliability of the ground handling vehicle in rainy days or in water-related environments, in one embodiment, the movable vehicle 100 further includes a rainproof component (not shown), and the rainproof component is arranged at the heat dissipation holes. The rainproof component is used to prevent rainwater or splashed water droplets from passing through the heat dissipation holes and entering the carriage 120. In one example, the rainproof component can be configured as a waterproof edge, one end of the waterproof edge is fixed at the upper edge of the heat dissipation hole, and the other end extends vertically downward in the direction away from the heat dissipation hole. In another example, the rainproof component can also be configured as a honeycomb-shaped stainless steel rainproof wire mesh covering the heat dissipation holes. Of course, the rainproof component can also be other structures, and this embodiment does not limit this.

[0150] In one embodiment, a battery access hole 123 and a charging gun access hole 124 are formed in the side wall of the carriage 120. The battery access hole 123 is for the energy storage battery 400 to pass through, and the charging gun access hole 124 is for the charging gun of the external charging module 300 to pass through. The movable vehicle 100 further includes a first covering member and a second covering member. The first covering member is movably disposed at the battery access hole 123 to open or close the battery access hole 123, and the second covering member is movably disposed at the charging gun access hole 124 to open or close the charging gun access hole 124.

[0151] Specifically, please refer to Figure 9 , at least one battery access hole 123 corresponding to the energy storage battery 400 is formed in the carriage 120. The size of the battery access hole 123 enables the energy storage battery 400 to pass through, so as to facilitate quickly removing the energy storage battery 400 and replacing it as a spare part on the eVTOL. A charging gun access hole 124 is formed at the position of the carriage 120 corresponding to the external charging module 300. The size of the charging gun access hole 124 enables the charging gun of the external charging module 300 to pass through. That is, when the external charging module 300 is not operating, the charging gun can be retracted and fixed on the external charging module 300, and when the external charging module 300 is operating, the charging gun extends out of the carriage 120.

[0152] To prevent rain, foreign objects, etc. from entering the battery compartment 121, a first covering member is provided at the battery access hole 123, and the first covering member opens or closes the battery access hole 123. Thus, during the ground vehicle driving and parking for guarantee but without battery replacement, the first covering member closes the battery access hole 123 to ensure the environmental safety inside the battery compartment 121. When it is necessary to replace the energy storage battery 400, the first covering member opens the battery access hole 123 to allow the energy storage battery 400 to be taken out.

[0153] Similarly, to prevent rain, foreign objects, etc. from entering the carriage 120 (external charging module compartment 122), a second covering member is provided at the charging gun access hole 124, and the second covering member opens or closes the charging gun access hole 124. Thus, when the ground vehicle is not performing a charging operation, the second covering member closes the charging gun access hole 124 to ensure the environmental safety inside the external charging module compartment 122.

[0154] It should be noted that the first covering member and the second covering member can be configured as structures such as swing doors and sliding doors at the corresponding entrances and exits.

[0155] It can be understood that when battery replacement is required, the energy storage battery 400 to be disassembled can be determined first, and then the energy storage battery 400 is connected to the battery debugging interface through circuit switching. The parameters of the energy storage battery 400 are debugged through the battery debugging interface, and only after the parameter debugging is completed, the energy storage battery 400 is disassembled and taken out from the battery compartment 121. However, since the detection of the energy storage battery 400 during battery replacement is not limited to voltage adjustment, but also involves various comprehensive and detailed inspections such as shell inspection, external pole inspection, leakage detection, electrolyte inspection, and temperature inspection. Therefore, the energy storage battery 400 can be taken out from the battery compartment 121 in advance, and voltage adjustment is only carried out after passing the above inspections. For this reason, in an embodiment, a battery debugging position 1251 is further defined in the carriage 120, and the battery debugging position 1251 is arranged adjacent to the external charging module 300; a hatch opening facing the battery debugging position 1251 is provided on the side wall of the carriage 120; the movable vehicle 100 further includes a debugging hatch, and the debugging hatch is used for the energy storage battery 400 to pass through, and the debugging hatch is arranged at the hatch opening to open or close the hatch opening.

[0156] Specifically, please refer to Figure 1 and Figure 9 , a battery debugging position 1251 can be left behind the external charging module 300 (near the vehicle tail) in the carriage 120, so that the voltage of the energy storage battery 400 can be debugged by using the battery debugging interface of the external charging module 300 at the battery debugging position 1251.

[0157] Specifically, a battery debugging compartment 125 is further defined in the carriage 120 by a partition on the side (rear) of the external charging module compartment 122. The battery debugging compartment 125 is communicated with the outside through a hatch opening, so that the energy storage battery 400 can enter or leave the battery debugging compartment 125. A debugging hatch is arranged at the hatch opening, and the debugging hatch closes the hatch opening when the battery debugging compartment 125 is not in use. It can be understood that the debugging hatch can be configured as a sliding door, a rolling shutter door, a swing door, etc., and the present embodiment does not limit this.

[0158] A communication hole is provided on the partition between the external charging module compartment 122 and the battery debugging compartment 125, and the communication hole is aligned with the battery debugging interface provided on the external charging module 300, so that the battery debugging interface is exposed from the communication hole. In this way, when battery replacement is required, first determine the energy storage battery 400 to be disassembled, take the energy storage battery 400 out of the battery compartment 121, then open the debugging hatch and place the energy storage battery 400 into the battery debugging compartment 125. The maintenance personnel can perform various inspections on the energy storage battery 400 according to the preset inspection specifications, and after the inspection is passed, the energy storage battery 400 is connected to the battery debugging interface through a cable, and finally voltage charge and discharge debugging is carried out on it.

[0159] Of course, the carriage 120 also has an emergency battery. At this time, an emergency debugging interface connected to the emergency battery can be provided in the battery debugging compartment 125, so that the energy storage battery 400 can be debugged for voltage charge and discharge through the emergency battery.

[0160] In addition, in order to facilitate various inspections of the energy storage battery 400, in one embodiment, a tool and spare parts box is also provided in the carriage 120, and the tool and spare parts box is arranged adjacent to the battery debugging position 1251. For example, the toolbox can be arranged in the aforementioned battery debugging compartment 125, and the two are arranged side by side in the width direction of the carriage 120.

[0161] The tool and spare parts box contains various tooling tools. Of course, the tooling tools in the tool and spare parts box are not limited to the tooling tools for debugging the energy storage battery 400, but also include other tools for the driving and maintenance of the ground support vehicle and the maintenance of the charging pile.

[0162] In one embodiment, the inner wall of the carriage 120 is provided with a fireproof layer. In this embodiment, the inner wall of the carriage 120 includes but is not limited to the inner wall of the outer frame of the carriage 120 and the two side walls of the partition. The fireproof layer is configured as an aerogel fireproof coating, a fireproof paint layer or other types of fireproof layer structures.

[0163] In this embodiment, the fireproof layer can prevent the spread of flames in the event of thermal runaway of the energy storage battery 400 or other fire incidents, thereby leaving sufficient escape time for personnel and improving the safety of the ground support vehicle.

[0164] In one embodiment, the movable vehicle 100 further includes a fire extinguishing component, and the fire extinguishing component is arranged in the carriage 120.

[0165] In this embodiment, multiple fire extinguishing components can be respectively arranged in the battery compartment 121, the external charging module compartment 122, the battery debugging compartment 125 and other compartments, so that when a fire breaks out in each compartment, the fire extinguishing components can be quickly activated to extinguish the fire. The fire extinguishing component is a perfluorohexanone spray component. Of course, in other embodiments, the fire extinguishing component can also be a spray component of other media such as heptafluoropropane, high-pressure carbon dioxide, and ultrafine water mist.

[0166] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. An electric vehicle ground support equipment, characterized in that: The electric vehicle ground support equipment comprises: Movable vehicles; An electric energy driving module, the electric energy driving module is arranged on the movable carrier and is used to drive the movable carrier to move; An external charging module, the external charging module is arranged on the movable vehicle, and the external charging module is used to charge the battery pack of the electric vehicle; A plurality of energy storage batteries connected in parallel are detachably arranged on the movable carrier, the energy storage batteries are electrically connected to the electric energy driving module and the external charging module respectively, and the specifications of the energy storage batteries are consistent with those of the battery pack.

2. The electric vehicle ground support equipment according to claim 1, characterized in that: The external charging module has a battery debugging interface, and the energy storage battery is suitable for being detachably connected to the battery debugging interface.

3. The electric vehicle ground support equipment according to claim 1, characterized in that: The external charging module comprises: A charging pile body, the charging pile body is arranged on the movable vehicle, and the charging pile body is detachably connected to the electric vehicle through a pipeline; A thermal management module is arranged on the movable vehicle, and the thermal management module is constructed to be connected to the battery cavity of the electric vehicle to form a battery heat exchange branch when the charging pile body is connected to the electric vehicle, so that the insulating heat exchange fluid in the thermal management module can flow in the battery heat exchange branch and fill the battery cavity.

4. The electric vehicle ground support equipment according to claim 3, characterized in that: The charging pile body has a device cavity, and a charging module is arranged in the device cavity; The thermal management module is also configured to communicate with the device cavity to form a device heat exchange branch, so that the insulating heat exchange fluid can flow in the device heat exchange branch and fill the device cavity.

5. The electric vehicle ground support equipment according to claim 4, characterized in that: The thermal management module includes a main circuit, which includes a medium storage box, a pump, and a heat exchanger that are sequentially connected through pipelines; The device heat exchange branch and the battery heat exchange branch are connected in parallel and then in series to the main circuit to form a circulation loop; or, the device heat exchange branch, the battery heat exchange branch and the main circuit are connected in series to form a circulation loop.

6. The electric vehicle ground support equipment according to claim 5, characterized in that: The heat exchanger comprises a direct evaporation refrigeration cycle device or a semiconductor refrigeration device; and / or The main circuit further includes a positive temperature coefficient (PTC) heater, or the heat exchanger is connected to a heat pump system, and the heat pump system switches between a cooling mode and a heating mode.

7. The electric vehicle ground support equipment according to claim 4, characterized in that: The thermal management module comprises: A first thermal management submodule, the first thermal management submodule is connected to the device heat exchange branch; The second thermal management submodule is connected to the battery heat exchange branch.

8. The electric vehicle ground support equipment according to any one of claims 3 to 7, characterized in that: The insulating heat exchange fluid is made of deionized water, electronic fluorinated liquid, hydrocarbons, esters or silicone oils.

9. The electric vehicle ground support equipment according to claim 3, characterized in that: The electric vehicle ground support equipment further includes a distribution box, which is arranged on the movable vehicle, and the movable vehicle has a fast charging interface and a slow charging interface; The distribution box comprises: A charger connected to the slow charging interface; A plurality of battery interfaces, wherein the plurality of battery interfaces correspond one-to-one to the plurality of energy storage batteries, and the energy storage batteries are detachably connected to the corresponding battery interfaces; A plurality of battery discharge circuits, wherein the plurality of battery discharge circuits correspond one-to-one to the plurality of battery interfaces, one end of each of the battery discharge circuits is connected to the corresponding battery interface, and the other end of each of the battery discharge circuits is connected to the external charging module; Multiple battery charging circuits, the multiple battery charging circuits correspond one-to-one to the multiple battery interfaces, and one end of each of the battery charging circuits is connected to the corresponding battery interface, and the other end of each of the battery charging circuits is connected to the charger or the fast charging interface.

10. The electric vehicle ground support equipment according to claim 9, characterized in that: The battery discharge circuit comprises a discharge main circuit and a pre-charge branch connected in parallel, the discharge main circuit comprises a first contactor and a first fuse, the pre-charge branch comprises a pre-charge resistor and a second contactor connected in series, and the second contactor is used to turn on or off the pre-charge branch; and / or The distribution box also includes at least one reserved interface circuit, which is connected to at least part of all the battery discharge circuits. The reserved interface circuit includes a third contactor and a third fuse, and the third contactor is used to turn on or off the reserved interface circuit.

11. The electric vehicle ground support equipment according to claim 10, characterized in that: The electric vehicle ground support equipment further includes a control module, which is disposed on the movable vehicle, the control module is electrically connected to at least part of all the battery discharge circuits, and the control module is communicatively connected to the external charging module, the electric energy drive module and the thermal management module respectively; A cooling channel is defined in at least one of the control module, the electric energy drive module and the energy storage battery, and the thermal management module is connected to the cooling channel so that the insulating heat exchange fluid can flow in the cooling channel.

12. The electric vehicle ground support equipment according to claim 2, characterized in that: The movable vehicle comprises a carriage, the external charging module and the energy storage battery are both arranged in the carriage, and heat dissipation holes are provided at positions of the side wall of the carriage corresponding to the external charging module; The movable carrier also includes a rainproof component, which is arranged at the heat dissipation hole.

13. The electric vehicle ground support equipment according to claim 12, characterized in that: The side wall of the carriage is also provided with a battery access hole and a charging gun access hole, wherein the battery access hole is for the energy storage battery to pass through, and the charging gun access hole is for the charging gun of the external charging module to pass through; The movable carrier also includes a first cover member and a second cover member, wherein the first cover member can be opened and closed at the battery access hole to open or close the battery access hole, and the second cover member can be opened and closed at the charging gun access hole to open or close the charging gun access hole.

14. The electric vehicle ground support equipment according to claim 12, characterized in that: A battery debugging position is also defined in the compartment, and the battery debugging position is arranged adjacent to the external charging module; The side wall of the carriage is provided with a hatch opening directly facing the battery debugging position; The movable vehicle also includes a debugging hatch, which is arranged at the hatch opening to open or close the hatch opening, and the debugging hatch is used for allowing the energy storage battery to pass through.

15. The electric vehicle ground support equipment according to claim 14, characterized in that: A tool spare parts box is also arranged in the carriage, and the tool spare parts box is arranged adjacent to the battery debugging position.

16. The electric vehicle ground support equipment according to claim 12, characterized in that: The inner wall of the carriage is provided with a fireproof layer, and the fireproof layer is constructed as an aerogel fireproof coating or a fireproof paint layer; and / or The movable vehicle also includes a fire extinguishing component, which is arranged in the vehicle compartment; the fire extinguishing component is a perfluorohexanone spray component.

17. The electric vehicle ground support equipment according to claim 12, characterized in that: The movable vehicle further comprises: a chassis, wherein the carriage is provided on the chassis; A traction rod is arranged at one end of the chassis in the length direction.

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