Energy conversion device, electric vehicle and energy output control method thereof

Abstract

The present invention relates to the field of electric energy conversion and output of electric vehicles. The energy conversion device is coupled with the vehicle interface to realize the connection of the air conditioning duct and the electrical connection, so that the vehicle air conditioning system can serve the space outside the passenger compartment; and it is electrically connected with the vehicle's power supply equipment to output 220V AC. It is also proposed that the electric vehicle with the above energy conversion device is provided with an interface that cooperates with the energy conversion device. After the energy conversion device is coupled with the above interface of the vehicle, the vehicle's air conditioning system and power supply equipment can work under the control of the energy conversion device, so as to adjust the temperature and supply power to the space outside the passenger compartment.

Description

Technical Field

[0001] The present invention relates to the field of electric energy conversion and output of electric vehicles, and in particular to the output of electric energy of a vehicle-mounted power battery in the form of heat energy or alternating current. Background Art

[0002] The onboard power battery of an electric or hybrid vehicle can usually store more than 15kWh of electricity to support the vehicle's electric drive; the onboard air conditioning system (including the compressor and heater) can be operated electrically without relying on the internal combustion engine; but the onboard air conditioning system can only serve the passenger compartment, and cannot meet the needs of adjusting the temperature or ventilation for mobile living spaces (such as tents) in camping scenarios, and the supply of 220V AC power is also a requirement for outdoor camping. The functions and peripheral configurations of existing electric vehicles limit the further improvement of the camping experience. Summary of the invention

[0003] The present invention provides an energy conversion device, which is coupled with a vehicle interface to achieve communication with the air conditioning duct and electrical connection, so that the vehicle air conditioning system can serve the space outside the passenger compartment; and is electrically connected to the vehicle's power supply equipment to output 220V AC power. It is further proposed that an electric vehicle with the above energy conversion device has a battery pack provided with an interface that cooperates with the energy conversion device. After the energy conversion device is coupled with the above interface of the vehicle, the vehicle's air conditioning system and power supply equipment can operate under the control of the energy conversion device, thereby adjusting the temperature and supplying power to the space outside the passenger compartment. The specific technical solution is as follows:

[0004] An energy conversion device, the energy conversion device consisting of a plug, a pipeline and an output device;

[0005] The plug is provided with a coupling interface and a locking structure; the coupling interface includes a first air outlet, a second air outlet, a low-voltage power supply interface, a communication interface and a high-voltage power supply interface; the low-voltage power supply interface is provided with a low-voltage positive electrode interface and a low-voltage negative electrode interface, a low-voltage power supply interface; the communication interface is provided with one or more pins; the high-voltage power supply interface is provided with a neutral wire, a live wire and a ground wire;

[0006] The pipeline is provided with an air supply duct, an air return duct, a low-voltage power supply harness, a communication harness and a high-voltage power supply harness inside, and the pipeline is provided with a flexible outer layer;

[0007] The output device includes an air outlet, an air return outlet, an output control module, an AC power interface and a power indicator light; the output control module includes a communication module and a human-computer interaction interface, and the AC power interface is a single-phase two-pole grounded socket.

[0008] Furthermore, the first port of the pipeline is connected to the plug, and the second port of the pipeline is connected to the output device; the first air outlet of the coupling interface is connected to the air outlet of the output device through the air supply duct; the second air outlet of the coupling interface is connected to the return air outlet of the output device through the return air duct; the low-voltage power supply interface of the coupling interface is electrically connected to the output control module of the output device through the low-voltage power supply harness; the communication interface of the coupling interface is electrically connected to the output control module of the output device through the communication harness; and the high-voltage power supply interface of the coupling interface is electrically connected to the AC power supply interface of the output device through the high-voltage power supply harness.

[0009] Furthermore, the communication interface is provided with a high-bit data interface and a low-bit data interface to realize CAN communication with the electric vehicle.

[0010] Furthermore, the flexible outer layer is composed of a polyvinyl chloride layer and a fiber braided layer; the interior of the pipeline is filled with thermal insulation and flame retardant materials.

[0011] Furthermore, the human-computer interaction interface includes operation buttons and a display screen, and the operation buttons are touch screen buttons or mechanical buttons.

[0012] Furthermore, the operation buttons include an air conditioning switch button, an air conditioning mode button, a temperature increase button, a temperature decrease button, an air volume increase button, an air volume decrease button, a power output button or a function control button.

[0013] Further, an electric vehicle matched with the aforementioned energy conversion device is provided with a power battery pack, an on-board inverter, an air conditioning system, a controller and an energy conversion interface and a protective cover thereof; the energy conversion interface is matched with the energy conversion device;

[0014] The energy conversion interface includes a first air conditioning duct, a second air conditioning duct, a vehicle low-voltage interface, a vehicle communication interface and an inverter output interface; the vehicle inverter is provided with an AC interface and a DC interface, the AC interface is electrically connected to the inverter output interface, and the DC interface is electrically connected to the power battery pack; the vehicle low-voltage interface of the energy conversion interface is respectively connected to the positive and negative electrodes of the low-voltage battery of the electric vehicle; the controller communicates with the vehicle inverter, the power battery pack and the air conditioning system through the CAN network communication mode, and the vehicle communication interface of the energy conversion interface is electrically connected to the above-mentioned CAN network;

[0015] The shape of the energy conversion interface matches the plug of the energy conversion device, and is provided with a locking interface. The locking structure of the energy conversion device cooperates with the above-mentioned locking interface to maintain the connection state between the plug and the electric vehicle so that it will not loosen or disconnect unexpectedly.

[0016] Furthermore, the energy conversion interface can be mechanically mounted on the vehicle body; the closed state of the protective cover meets the IP67 protection level.

[0017] Furthermore, a plurality of seals are provided on the energy conversion interface to cooperate with the plug.

[0018] The energy output control method of the aforementioned energy conversion device: the user controls the output of the air-conditioning system through the human-computer interaction interface on the energy conversion device.

[0019] Beneficial effects of the present invention:

[0020] Through an energy conversion device with flexible pipelines, users can make the vehicle air-conditioning system flexibly serve the space outside the passenger cabin; users can remotely operate the functions of the vehicle air-conditioning to adjust the temperature and ventilation of the camping living space as needed.

[0021] The energy conversion device outputs 220V AC power from the electric vehicle to meet the power needs of camping scenarios.

[0022] The energy conversion device integrates the functions of converting direct current into alternating current output and converting electrical energy into thermal energy output, sharing pipelines and communication modules, improving operational convenience and reducing costs.

[0023] The energy conversion device can control the SOC limit of the power battery pack to prevent the energy conversion device from over-consuming the energy of the power battery pack and affecting the cruising range. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the energy conversion device;

[0025] Figure 2 for Figure 1 Partial view in the middle M direction;

[0026] Figure 3 for Figure 1 Middle NN section view;

[0027] Figure 4 It is a schematic diagram of the structure of the output device of the energy conversion device;

[0028] Figure 5 for Figure 4 Schematic diagram of the KK section;

[0029] Figure 6 This is a schematic diagram of the electric vehicle structure;

[0030] Figure 7 Schematic diagram of the energy conversion interface structure of electric vehicles

[0031] Figure 8 It is a schematic diagram of connecting the energy conversion device with the electric vehicle;

[0032] Fig. 9 for Figure 8A partial enlarged diagram;

[0033] Fig.10 for Fig. 9 Middle AA section view;

[0034] Fig.11 for Fig. 9 Middle BB section view;

[0035] Fig.12 This is a schematic diagram of the internal circulation of the air conditioning system;

[0036] Fig.13 This is a schematic diagram of the external circulation of the air conditioning system. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the energy conversion device 1 is composed of a plug 11, a pipeline 12 and an output device 13. The plug 11 is provided with a coupling interface 2 and a locking structure 3, and the coupling interface 2 includes a first air outlet 21, a second air outlet 22, a low voltage power supply interface 23, a communication interface 24 and a high voltage power supply interface 25.

[0039] The low-voltage power interface 23 is provided with a low-voltage positive interface 231 and a low-voltage negative interface 232, and the low-voltage power interface 23 is connected to the low-voltage circuit of the electric vehicle, usually the on-board 12V power supply. The communication interface 24 can be selected as one or more pins according to the communication mode. Preferably, the communication interface 24 is provided with two interfaces to realize CAN communication with the electric vehicle, that is, the communication interface 24 is provided with a high-bit data interface 241 and a low-bit data interface 242. The high-voltage power supply interface 25 is provided with a neutral line 251, a live line 253 and a ground line 252, which are used to output 220V AC from the electric vehicle. The locking structure 3 is used to keep the connection state between the plug 11 and the electric vehicle from being unexpectedly loosened or disconnected.

[0040] The pipeline 12 is provided with an air supply pipe 121, an air return pipe 122, a low-voltage power supply harness 123, a communication harness 124 and a high-voltage power supply harness 125. The pipeline 12 is provided with a flexible outer layer 126 to cover the air supply pipe 121, the air return pipe 122, the low-voltage power supply harness 123, the communication harness 124 and the high-voltage power supply harness 125. The flexible outer layer 126 has wear-resistant and insulating properties, and the flexible outer layer 126 can be composed of a polyvinyl chloride layer and a fiber braided layer. Preferably, the pipeline 12 is filled with a heat-insulating flame-retardant material 127, such as a flame-retardant foamed silica gel.

[0041] The output device 13 includes an air outlet 131, an air return outlet 132, an output control module 133, an AC power interface 134 and a power indicator light 135; the output control module 133 includes a communication module 1331 and a human-computer interaction interface 1332; the human-computer interaction interface 1332 preferably includes an operation button 4 and a display screen 5, the operation button 4 is used to control the working state of the energy conversion device 1, such as air conditioning on, air conditioning working mode, air conditioning target temperature, air conditioning wind speed, AC power output mode, the operation button 4 can be a touch screen button or a mechanical button; the display screen 5 is used to display real-time information of the energy conversion device 1, such as air conditioning working state, set temperature, indoor temperature, power battery SOC, etc.

[0042] The operation buttons 4 may include an air conditioning switch button 41, an air conditioning mode button 42, a temperature increase button 43, a temperature decrease button 44, an air volume increase button 45, an air volume decrease button 46, a power output button 47, and a function control button 48; the air conditioning switch button 41 can control the opening or closing of the air conditioning function; the air conditioning mode button 42 can control the air circulation of the air conditioning to switch between internal circulation and external circulation; the temperature decrease button 44 and the temperature increase button 43 can adjust the target temperature of the air conditioning; the air volume increase button 45 and the air volume decrease button 46 can adjust the air speed of the air conditioning, for example, switching between low speed, medium speed, high speed, automatic and other modes; the power output button 47 can control the AC power output mode of the electric vehicle, that is, the user can control the electric vehicle to supply power to the AC power interface 134; the function control button 48 can control the air conditioning timing, limit the power battery SOC and other functions in combination with the temperature increase button 43 and the temperature decrease button 44; the user can operate the operation button 4 of the human-computer interaction interface 1332 by touching / pressing; the AC power interface 134 can be a single-phase two-pole grounded socket that meets the requirements of GB 1002.

[0043] The first port 12a of the pipeline 12 is connected to the plug 11, and the second port 12b of the pipeline 12 is connected to the output device 13; the pipeline 12 connects the plug 11 and the output device 13 to realize electrical / fluid transmission, the first air outlet 21 of the coupling interface 2 is connected to the air outlet 131 of the output device 13 through the air supply pipe 121, the second air outlet 22 of the coupling interface 2 is connected to the return air outlet 132 of the output device 13 through the return air pipe 122, and the low-voltage power supply interface 23 of the coupling interface 2 is connected to the output control of the output device 13 through the low-voltage power supply harness 123. The control module 133 is electrically connected to provide a working power supply for the output control module 133, the communication interface 24 of the coupling interface 2 is electrically connected to the output control module 133 of the output device 13 through the communication harness 124 to realize signal transmission, and the high-voltage power supply interface 25 of the coupling interface 2 is electrically connected to the AC power interface 134 of the output device 13 through the high-voltage power supply harness 125, that is, the neutral wire 251, the live wire 253 and the ground wire 252 of the high-voltage power supply interface 25 are respectively electrically connected to the three ports of the above-mentioned single-phase two-pole grounded socket.

[0044] like Figure 6 , Figure 7 As shown, the electric car 6 matched with the aforementioned energy conversion device is provided with a power battery pack 61, a vehicle inverter 62, an air conditioning system 63, a controller 64 and an energy conversion interface 65 and its protective cover 66; the energy conversion interface 65 can be mechanically mounted on the vehicle body 67.

[0045] When the energy conversion interface 65 is in a non-working state, the protective cover 66 can be closed to shield or seal the energy conversion interface 65 to prevent the energy conversion interface 65 from being interfered with by liquid or foreign objects. Preferably, the closed state of the protective cover 66 can meet the IP67 protection level; the existing technology can support the protective cover 66 to be manually pressed to trigger or electrically assisted to trigger and then open or close.

[0046] The energy conversion interface 65 includes a first air conditioning duct 651, a second air conditioning duct 652, a vehicle low voltage interface 653, a vehicle communication interface 654 and an inverter output interface 655. The vehicle inverter 62 is provided with an AC interface and a DC interface, the AC interface is electrically connected to the inverter output interface 655, and the DC interface is electrically connected to the power battery pack 61. The vehicle inverter 62 converts the DC power output by the power battery pack 61 into 220V single-phase AC power and further outputs it from the AC interface to the inverter output interface 655.

[0047] It is known in the prior art, such as Fig.12 , Fig.13As shown, the air conditioning system 63 is provided with a thermal management module 631, a blower 632, a heat exchanger 633, a circulation control module 634 and an air duct. As is known to all, the thermal management module 631 generally includes an air conditioning compressor, a condenser, a heater, a pipeline, an expansion valve, etc. The air conditioning compressor and the heater are powered by a high-voltage circuit connected to the power battery pack 61; the thermal management module 631 can adjust the heat exchanger 633 to a cooling mode or a heating mode, and further the blower 632 drives the air to flow through the heat exchanger 633 so that the air is cooled or heated; that is, the air conditioning system 63 has the functions of cooling and heating. The circulation control module 634 switches the air circulation mode of the air conditioning system 63 by adjusting the position of the air guide plate 6341, such as internal circulation or external circulation; the circulation control module 634 controllably guides the air flowing through the heat exchanger 633 to the set position of the passenger compartment of the electric vehicle 6 and / or the first air conditioning duct 651 and the second air conditioning duct 652 of the energy conversion interface 65 through the air duct.

[0048] The vehicle low voltage interface 653 of the energy conversion interface 65 is respectively connected to the positive and negative electrodes of the low voltage battery of the electric vehicle 6, and usually the two ends of the vehicle low voltage interface 653 have a voltage of 12V. The controller 64 can communicate with the vehicle inverter 62, the power battery pack 61 and the air conditioning system 63 through the CAN network communication mode, and the vehicle communication interface 654 of the energy conversion interface 65 is electrically connected to the above CAN network.

[0049] like Fig. 9 , Fig.10 and Fig.11 As shown, the shape of the energy conversion interface 65 is designed to match the plug 11 of the energy conversion device 1, and a locking interface 658 is provided, so that the plug 11 of the energy conversion device 1 can be inserted into the energy conversion interface 65 of the electric vehicle 6 and further achieve fluid and electrical communication. The locking structure 3 of the energy conversion device 1 cooperates with the above-mentioned locking interface 658 to maintain the connection state between the plug and the electric vehicle without unexpected loosening or disconnection. The user can press the unlocking button 31 to decouple the locking structure 3 from the locking interface 658, and further the energy conversion device 1 can be unplugged from the energy conversion interface 65 of the electric vehicle 6.

[0050] The operation control path for the energy conversion device 1 is as follows:

[0051] like Figure 2 , Figure 7 , Fig. 9 , Fig.10 , Fig.11As shown, the plug 11 of the energy conversion device 1 is inserted into the energy conversion interface 65 of the electric vehicle 6, the first air outlet 21 of the coupling interface 2 is connected to the first air conditioning duct 651 of the energy conversion interface 65 and fluidly connected, the second air outlet 22 of the coupling interface 2 is connected to the second air conditioning duct 652 of the energy conversion interface 65 and fluidly connected, the low-voltage power supply interface 23 of the coupling interface 2 is connected to the vehicle low-voltage interface 653 of the energy conversion interface 65 and electrically connected, the communication interface 24 of the coupling interface 2 is connected to the vehicle communication interface 654 of the energy conversion interface 65 and electrically connected, and the high-voltage power supply interface 25 of the coupling interface 2 is connected to the inverter output interface 655 of the energy conversion interface 65 and electrically connected.

[0052] The locking structure 3 of the energy conversion device 1 cooperates with the locking interface 658 of the energy conversion interface 65 to limit the displacement of the energy conversion device 1, thereby maintaining the connection between the plug 11 and the electric vehicle 6 without unexpected loosening or disconnection. The user can press the unlocking button 31 to decouple the locking structure 3 from the locking interface 658, and further the energy conversion device 1 can be unplugged from the energy conversion interface 65 of the electric vehicle 6.

[0053] The energy conversion interface 65 is provided with a plurality of seals 656 that cooperate with the plug 11, further avoiding gas leakage at the connection between the first air outlet 21 of the coupling interface 2 and the first air conditioning duct 651 of the energy conversion interface 65, and avoiding gas leakage at the connection between the second air outlet 22 of the coupling interface 2 and the second air conditioning duct 652 of the energy conversion interface 65. The energy conversion interface 65 is provided with a seal 657 that cooperates with the plug 11, further satisfying that the protection level of the coupling state of the plug 11 and the energy conversion interface 65 is not less than IP54, thereby avoiding the connection working state of the energy conversion device 1 and the electric vehicle 6 from being disturbed by liquid or foreign matter, and the above-mentioned interference can usually be rainy or dusty weather.

[0054] Combination Figure 5 , Figure 8 , Fig. 9 , Fig.10 , Fig.12 , Fig.13 The low-voltage power supply interface 23 of the coupling interface 2 of the energy conversion device 1 is connected to the vehicle low-voltage interface 653 of the energy conversion interface 65 and is electrically conductive. The vehicle low-voltage interface 653 of the known energy conversion interface 65 described above is respectively connected to the positive and negative electrodes of the low-voltage battery of the electric vehicle 6, that is, there is a 12V voltage at both ends of the vehicle low-voltage interface 653; the low-voltage power supply interface 23 of the known coupling interface 2 described above is electrically connected to the output control module 133 of the output device 13 through the low-voltage power harness 123 to provide power for the output control module 133.

[0055] Further, the output control module 133 of the output device 13 of the energy conversion device 1 is electrically connected to the low-voltage battery of the electric vehicle 6, that is, after the plug 11 of the energy conversion device 1 is inserted into the energy conversion interface 65 of the electric vehicle 6, the output control module 133 of the output device 13 of the energy conversion device 1 obtains power from the electric vehicle 6 and further starts the output control module 133; further, the communication module 1331 of the output control module 133 is awakened, and further, the communication module 1331 wakes up the controller 64 of the electric vehicle 6 by sending a specific frame message through the CAN network through the communication harness 124 inside the pipeline 12, and further, the communication module 1331 establishes CAN communication with the controller 64 of the electric vehicle 6; it is well known that the controller 64 in the dormant state can be awakened by the message of the CAN network as an existing technology. At the same time, the display screen 5 of the human-machine interaction interface 1332 lights up and displays the real-time information of the energy conversion device 1, and the user can operate the operation button 4 of the human-machine interaction interface 1332 to further control the function of the energy conversion device 1.

[0056] The operation buttons 4 include an air conditioning switch button 41, an air conditioning mode button 42, a temperature increase button 43, a temperature decrease button 44, an air volume increase button 45, an air volume decrease button 46, a power output button 47, and a function control button 48; the air conditioning switch button 41 can control the opening or closing of the air conditioning function of the air conditioning system 63 of the electric vehicle 6; the air conditioning mode button 42 can control the air circulation of the air conditioning to switch between internal circulation and external circulation; the temperature reduction button 44 and the temperature increase button 43 can adjust the target temperature of the air conditioning; the air volume increase button 45 and the air volume decrease button 46 can adjust the air speed of the air conditioning, for example, switching between low speed, medium speed, high speed, automatic and other modes; the power output button 47 can control the AC power output mode of the electric vehicle, that is, the user can control the electric vehicle 6 to supply power to the AC power interface 134; the function control button 48 can control the air conditioning timing, limit the power battery SOC and other functions in combination with the temperature increase button 43 and the temperature decrease button 44; the user can operate the operation button 4 of the human-computer interaction interface 1332 by touching / pressing.

[0057] For example, when the ambient temperature is 35°C, the user operates the air conditioning switch button 41 to turn on the air conditioning, operates the temperature increase button 43 or the temperature decrease button 44 to set the target temperature to 25°C, operates the air volume increase button 45 or the air volume decrease button 46 to set the wind speed to medium speed, and operates the air conditioning mode button 42 to set it to internal circulation, and the display screen 5 displays / updates the above information set by the user in real time; further, the communication module 1331 sends the above air conditioning control information to the controller 64 of the electric vehicle 6 through the CAN message, and further, the controller 64 of the electric vehicle 6 controls the operation of the power battery pack 61, and sends the air conditioning control information sent by the communication module 1331 to the air conditioning system 63; optionally, the controller 64 of the electric vehicle 6 and the air conditioning system 63 simultaneously receive the communication module on the CAN network. 1331 sends the air conditioning control information, which depends on the set CAN communication rules; the power battery pack 61 connects the high-voltage circuit of the electric car 6 and supplies power to the air conditioning system 63 according to the set program, and the air conditioning system 63 further sets the thermal management module 631 to adjust the heat exchanger 633 to the cooling mode according to the comparison result of the above-mentioned set target temperature and the ambient temperature; it is easy to understand that the target temperature value of 25°C set by the user in the embodiment is obviously lower than the ambient temperature value of 35°C, and the thermal management module 631 of the air conditioning system 63 needs to start cooling and cool the air through the heat exchanger 633 to adjust the temperature to the target temperature; on the contrary, if the target temperature value set by the user is 25°C and the ambient temperature is 10°C, the thermal management module 631 needs to adjust the heat exchanger 633 to the heating mode.

[0058] Further, the air conditioning system 63 adjusts the blower 632 to a working position corresponding to a medium speed output wind speed, and further, the air conditioning system 63 adjusts the circulation control module 634 to adjust the airflow circulation mode to an internal circulation; Fig.12 As shown, when the air guide plate 6341 of the circulation control module 634 is in the first position, the air of the second air conditioning duct 652 of the energy conversion interface 65 is directed to the blower air inlet 6321 of the blower 632, that is, the air circulation mode is internal circulation; Fig.13As shown, when the air guide plate 6341 of the circulation control module 634 is in the second position, the air of the second air-conditioning duct 652 of the energy conversion interface 65 is guided to the outside of the circulation control module 634, and at the same time, the blower air inlet 6321 of the blower 632 draws air from the air intake port 6342 of the circulation control module 634, that is, the air flow circulation mode is external circulation. The blower 632 drives the air to flow from the blower outlet 6322 through the heat exchanger 633, and the air is cooled by the heat exchanger 633 to become cold air. The cold air is further guided to the first air conditioning duct 651 of the energy conversion interface 65 through the air duct, and further the cold air is transported to the outlet 131 of the output device 13 through the first air port 21 of the coupling interface 2 and the air supply duct 121 inside the pipeline 12, so as to adjust the temperature of the space outside the passenger compartment, and the space outside the passenger compartment can be the tent 7; further the air in the tent 7 can be transported to the second air port 22 of the coupling interface 2 through the return air port 132 of the output device 13 and the return air duct 122 inside the pipeline 12, and further transported to the blower inlet 6321 of the blower 632 through the second air conditioning duct 652 of the energy conversion interface 65 and the air duct. In this way, the air in the tent 7 is cooled, that is, the air temperature in the tent 7 is gradually adjusted to the set target temperature. It is easy to understand that the above working principle can also realize heating inside the tent 7 or external circulation ventilation.

[0059] When in control use, the user operates the operation button 4 of the human-computer interaction interface 1332 by touching / pressing. For example, the user touches / presses the function control button 48 once, and the corresponding air-conditioning timing value on the display screen 5 flashes. The user operates the temperature increase button 43 / temperature decrease button 44 to adjust the timing time to 2 hours. The user touches / presses the function control button 48 again to enable the air-conditioning timing function. That is, when the timing is full for 2 hours, the communication module 1331 will send a request to turn off the air-conditioning to the controller 64 and / or the air-conditioning system 63 of the electric vehicle 6 through the CAN network. The air-conditioning system 63 of the electric vehicle 6 will automatically stop working upon receiving the instruction to turn off the air-conditioning from the controller 64.

[0060] In another embodiment, the user operates the operation button 4 of the human-computer interaction interface 1332 by touching / pressing, for example, the user touches / presses the power output button 47 to turn on the AC power output function, and the communication module 1331 sends a request to start the inverter output to the controller 64 and / or the power battery pack 61 and / or the vehicle-mounted inverter 62 of the electric vehicle 6 through CAN. Further, the power battery pack 61 connects the high-voltage circuit of the electric vehicle 6 and supplies power to the vehicle-mounted inverter 62 according to a set program. Further, the vehicle-mounted inverter 62 receives an instruction to start the inverter output from the controller 64 to start the inverter output function, that is, the vehicle-mounted inverter 62 outputs 220V AC through the AC interface and further transmits it to the AC power interface 134 of the output device 13 through the inverter output interface 655 of the energy conversion interface 65, the high-voltage power supply interface 25 of the coupling interface 2, and the high-voltage power supply harness 125 inside the pipeline 12.

[0061] In addition, the output device 13 is provided with a power indicator light 135, that is, the power indicator light 135 will light up when the AC power interface 134 has a 220V power supply, and the power indicator light 135 will go out when the AC power interface does not have a 220V power supply. The user can power the electrical device through a single-phase two-pole grounded plug that matches the AC power interface 134, and the electrical device can be an induction cooker, a kettle, etc.

[0062] Obviously, the user can also turn off the AC power output function by touching / pressing the power output button 47. When the power of the above-mentioned electrical equipment exceeds the limit range that the vehicle inverter 62 can support, the vehicle inverter 62 can send an overload warning message to the controller 64 and / or the communication module 1331 of the electric vehicle 6 through the CAN network, and further the display screen 5 displays the overload warning message to prompt the user to reduce the power of the electrical equipment. The energy conversion device 1 is provided with a fuse. When the power of the above-mentioned electrical equipment exceeds the design limit, the fuse blows to further protect the energy conversion device 1 and the electric vehicle 6.

[0063] In another embodiment, the user operates the operation button 4 of the human-computer interaction interface 1332 by touching / pressing. For example, the user touches / presses the function control button 48 twice in succession, and the corresponding limited power battery SOC value on the display screen 5 flashes. The user operates the temperature increase button 43 / temperature decrease button 44 to adjust the limited power battery SOC to 40%. The user touches / presses the function control button 48 again to enable the limited power battery SOC function. Further, the communication module 1331 compares the power battery SOC value sent in real time by the electric vehicle 6 through the CAN with the limited power battery SOC value set by the user (the above-mentioned user-set 40%). When The power battery SOC≤40%, further, the communication module 1331 sends a request to turn off the air conditioner and the inverter output to the controller 64 and / or the air conditioning system 63 and / or the power battery pack 61 and / or the vehicle inverter 62 of the electric vehicle 6 through the CAN network, and the air conditioning system 63 of the electric vehicle 6 automatically stops working upon receiving the instruction to turn off the air conditioner from the controller 64, and the vehicle inverter 62 automatically stops the inverter output upon receiving the instruction to turn off the inverter output from the controller 64, and further, the power battery pack 61 of the electric vehicle 6 will disconnect from the high-voltage circuit of the electric vehicle 6 according to the set program, thereby preventing the SOC of the power battery pack 61 from being too low.

[0064] Through the above embodiments, those skilled in the art can understand the following improvements. Through the energy conversion device 1 with a flexible pipeline 12, the user can make the vehicle air conditioning system 63 flexibly serve the tent 7 installed next to or on the roof of the electric car 6 during camping; the user can remotely operate the function of the vehicle air conditioning 63 to adjust the temperature and ventilation for the tent 7 as needed, without having to go into the car to complete the above operations. The energy conversion device 1 can output 220V AC power from the electric car 6, which is convenient for the power demand of the camping scene.

[0065] According to the prior art, users can only use air conditioning in the passenger compartment, or output AC power through a V2L output device, and then adjust the temperature of the tent 7 through an external air-conditioning device. However, carrying an external air-conditioning device is often difficult to achieve due to weight, volume and cost limitations; and the V2L output device and the external air-conditioning device are operated independently, which is not conducive to the user dynamically understanding the SOC status of the power battery pack 61 and controlling energy consumption.

[0066] The energy conversion device 1 of the present invention integrates the functions of converting direct current into alternating current output and converting electric energy into heat output, and shares the pipeline 12 and the communication module 1331, thereby improving the portability and operation convenience of the energy conversion device 1 and reducing the cost. The display screen 5 of the energy conversion device 1 will display the SOC of the power battery pack 61, and the lower limit value of the SOC of the power battery pack 61 can be remotely controlled to prevent the energy conversion device 1 from over-consuming the energy of the power battery pack 61 and thus affecting the cruising range.

[0067] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. An electric vehicle matched with an energy conversion device, characterized in that: The energy conversion device (1) is composed of a plug (11), a pipeline (12) and an output device (13); The plug (11) is provided with a coupling interface (2) and a locking structure (3); the coupling interface (2) comprises a first air outlet (21), a second air outlet (22), a low-voltage power supply interface (23), a communication interface (24) and a high-voltage power supply interface (25); the low-voltage power supply interface (23) is provided with a low-voltage positive electrode interface (231) and a low-voltage negative electrode interface (232); the communication interface (24) is provided with one or more pins; the high-voltage power supply interface (25) is provided with a neutral wire (251), a live wire (253) and a ground wire (252); The pipeline (12) is provided with an air supply pipe (121), an air return pipe (122), a low-voltage power supply wire harness (123), a communication wire harness (124) and a high-voltage power supply wire harness (125) inside, and the pipeline (12) is provided with a flexible outer layer (126); The output device (13) comprises an air outlet (131), an air return outlet (132), an output control module (133), an AC power interface (134) and a power indicator light (135); the output control module (133) comprises a communication module (1331) and a human-computer interaction interface (1332); the AC power interface (134) is a single-phase two-pole grounded socket; The electric vehicle (6) is provided with a power battery pack (61), an on-board inverter (62), an air conditioning system (63), a controller (64), and an energy conversion interface (65) and a protective cover (66) thereof; the energy conversion interface (65) is matched with the energy conversion device (1); The energy conversion interface (65) comprises a first air conditioning duct (651), a second air conditioning duct (652), a vehicle low-voltage interface (653), a vehicle communication interface (654) and an inverter output interface (655); the vehicle inverter (62) is provided with an AC interface and a DC interface, the AC interface is electrically connected to the inverter output interface (655), and the DC interface is electrically connected to the power battery pack (61); the vehicle low-voltage interface (653) of the energy conversion interface (65) is respectively connected to the positive electrode and the negative electrode of the low-voltage battery of the electric vehicle (6); the controller (64) communicates with the vehicle inverter (62), the power battery pack (61) through a CAN network. Communicating with the air conditioning system (63), the vehicle communication interface (654) of the energy conversion interface (65) is electrically connected to the above-mentioned CAN network; The shape of the energy conversion interface (65) matches the plug (11) of the energy conversion device (1), and is provided with a locking interface (658); the locking structure (3) of the energy conversion device (1) cooperates with the locking interface (658) to maintain the connection between the plug and the electric vehicle so that it will not become loose or disconnected unexpectedly.

2. The electric vehicle according to claim 1, characterized in that: The first port (12a) of the pipeline (12) is connected to the plug (11), and the second port (12b) of the pipeline (12) is connected to the output device (13); the first air outlet (21) of the coupling interface (2) is connected to the air outlet (131) of the output device (13) through the air supply pipe (121); the second air outlet (22) of the coupling interface (2) is connected to the return air outlet (132) of the output device (13) through the return air pipe (122); the low-voltage power supply interface (23) of the coupling interface (2) is electrically connected to the output control module (133) of the output device (13) through the low-voltage power supply harness (123); the communication interface (24) of the coupling interface (2) is electrically connected to the output control module (133) of the output device (13) through the communication harness (124); and the high-voltage power supply interface (25) of the coupling interface (2) is electrically connected to the AC power supply interface (134) of the output device (13) through the high-voltage power supply harness (125).

3. The electric vehicle according to claim 1 or 2, characterized in that: The communication interface (24) is provided with a high-bit data interface (241) and a low-bit data interface (242) to realize CAN communication with the electric vehicle.

4. The electric vehicle according to claim 1 or 2, characterized in that: The flexible outer layer (126) is composed of a polyvinyl chloride layer and a fiber braided layer; the interior of the pipeline (12) is filled with a heat-insulating and flame-retardant material (127).

5. The electric vehicle according to claim 1 or 2, characterized in that: The human-machine interaction interface (1332) comprises an operation button (4) and a display screen (5), wherein the operation button (4) is a touch screen button or a mechanical button.

6. The electric vehicle according to claim 5, characterized in that: The operation buttons (4) include an air conditioning switch button (41), an air conditioning mode button (42), a temperature increase button (43), a temperature decrease button (44), an air volume increase button (45), an air volume decrease button (46), a power output button (47), and a function control button (48).

7. The electric vehicle according to claim 1, characterized in that: The energy conversion interface (65) can be mechanically mounted on the vehicle body (67); and the protective cover (66) meets the IP67 protection level when in a closed state.

8. The electric vehicle according to claim 7, characterized in that: The energy conversion interface (65) is provided with a plurality of sealing members that cooperate with the plug.

9. An energy output control method, characterized in that: By using the electric vehicle described in any one of claims 1 to 8, a user can control the output of the air-conditioning system through the human-machine interaction interface on the energy conversion device.

Images