Electric automobile air conditioning device based on wind power generation

Abstract

The invention discloses an electric automobile air conditioner device based on wind power generation, and belongs to the technical field of air conditioner power supply, the electric automobile air conditioner device comprises air guide mechanisms, a wind turbine, a generator, a rectifier, a storage battery, an inverter, a controller and an air conditioner device, the air guide mechanisms are symmetrically installed on the left side and the right side of a vehicle engine compartment, and each air guide mechanism comprises a cover plate and an air guide plate; openings are formed in the front portion and the rear portion of the cover plate and serve as an air inlet and an air outlet respectively, the air guide plate is installed on the inner side of the cover plate, a vertical shaft base is arranged on the cover plate, and the wind turbine is rotationally arranged on the inner side of the cover plate through the vertical shaft base. The electric vehicle air conditioning device based on wind power generation is adopted to replace an original power supply mode of a vehicle-mounted air conditioning device, and the running stability of a vehicle can be improved when the vehicle-mounted air conditioning device runs.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning power supply, and in particular to an electric vehicle air-conditioning device based on wind power generation. Background Art

[0002] In recent years, new energy vehicles have rapidly gained popularity worldwide. Compared to traditional fuel-powered vehicles, new energy vehicles offer significant advantages in reducing carbon emissions and conserving energy. However, new energy vehicles still face technical bottlenecks such as limited range and inefficient power management. In particular, during summer and winter, when a vehicle's air conditioning system is in operation, its energy consumption accounts for a significant proportion of the vehicle's total power consumption, further reducing the vehicle's actual range. Summary of the Invention

[0003] The purpose of the present invention is to provide an electric vehicle air conditioning device based on wind power generation to solve the problems mentioned in the background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides an electric vehicle air-conditioning device based on wind power generation, comprising an air guide mechanism, a wind turbine, a generator, a rectifier, a battery, an inverter, a controller and an air-conditioning device, wherein the air guide mechanism is symmetrically installed on the left and right sides of the vehicle engine compartment, the air guide mechanism comprises a cover plate and an air guide plate, the cover plate is provided with openings at the front and rear, serving as an air inlet and an air outlet respectively, the air guide plate is installed on the inner side of the cover plate, a vertical shaft seat is provided on the cover plate, and the wind turbine is rotatably arranged on the inner side of the cover plate through the vertical shaft seat.

[0005] Preferably, the generator, the rectifier, the battery and the inverter are all installed in the engine compartment of the vehicle, and the other end of the generator is connected to the rectifier, the battery and the inverter in sequence.

[0006] Preferably, the number of the generators is set to two, which are installed on both sides of the vehicle engine compartment respectively. The rotating shafts of the two generators are connected to the rotating shaft of the wind turbine. The controller is installed on the console inside the vehicle, and the controller is connected to the battery and the air-conditioning device.

[0007] Preferably, the other end of the inverter is also connected to a car battery, and the other end of the car battery is connected to the controller.

[0008] Preferably, the air-conditioning device includes a refrigeration compressor, a condenser, a liquid storage dryer, an expansion valve and an evaporator. The refrigeration compressor is installed inside the vehicle engine compartment, the condenser is installed behind the front radiator frame of the car, one end of the condenser is connected to the high-pressure pipeline, and the evaporator is installed below the front windshield frame inside the vehicle.

[0009] Preferably, one end of the refrigeration compressor is connected to the high-pressure pipeline, and the refrigeration compressor is electrically connected to the controller, one end of the liquid storage dryer is connected to one end of the condenser through a liquid pipeline, one end of the expansion valve is connected to one end of the liquid storage dryer through a liquid pipeline, one end of the evaporator is connected to one end of the expansion valve through a liquid pipeline, and the other end is connected to the refrigeration compressor through a return air pipeline.

[0010] Preferably, a condensing fan is provided on the condenser, and a blower is provided above the evaporator.

[0011] Therefore, the present invention adopts the above-mentioned electric vehicle air conditioning device based on wind power generation, which has the following beneficial effects: Building upon the existing vehicle air conditioning system, the vehicle is equipped with an air guide mechanism, wind turbine, generator, rectifier, battery, and inverter. During operation, some of the air flowing through the vehicle body is directed through the air guide mechanism to the wind turbine, which rotates at high speed. This rotation simultaneously drives the generator through its shaft, generating three-phase AC power. This AC power is then converted to stable DC power via a rectifier connected to the generator and stored in the battery. When the battery is fully charged, the air inlet of the air guide mechanism closes, and the wind system stops operating. The battery is connected to the vehicle air conditioning unit to power it, and the control system adjusts the cooling or heating settings based on user needs. This method replaces the original power supply for the vehicle air conditioning unit while the vehicle is in motion, improving driving stability when the air conditioning is running.

[0012] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an electric vehicle air conditioning device based on wind power generation according to an embodiment of the present invention; Figure 2 A schematic diagram of the installation position of the air guide mechanism according to an embodiment of the present invention; Figure 3 Schematic diagram of the structure of the air guide mechanism according to an embodiment of the present invention; Figure 4 This is an operating logic diagram of an electric vehicle air conditioning device according to an embodiment of the present invention; Figure 5 This is a control flow chart of an electric vehicle air conditioning device according to an embodiment of the present invention; Figure 6 is a determination flow chart of a controller according to an embodiment of the present invention; Reference numerals 1. Wind turbine; 2. Generator; 3. Rectifier; 4. Battery; 5. Inverter; 6. Controller; 7. Refrigeration compressor; 8. Evaporator; 9. Expansion valve; 10. Liquid storage dryer; 11. Condenser; 12. Blower; 13. Air inlet; 14. Air guide mechanism; 15. Air guide plate; 16. Cover; 17 Air outlet; 18 Vertical shaft seat; 19. Car battery; 20. Condensing fan. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0016] Example like Figures 1-6 As shown, the present invention provides an electric vehicle air conditioning system based on wind power generation, comprising an air guide mechanism 14, a wind turbine 1, a generator 2, a rectifier 3, a battery 4, an inverter 5, a controller 6, and an air conditioning system. The air guide mechanism 14 is symmetrically mounted on the left and right sides of the vehicle's engine compartment. The air guide mechanism 14 includes a cover plate 16 and air guide plates 15. The cover plate 16 has openings at the front and rear, serving as an air inlet 13 and an air outlet 17, respectively. The air guide plates 15 are mounted on the inside of the cover plate 16 to guide the direction of wind entering the cover plate 16. A vertical shaft seat 18 is mounted on the cover plate 16, through which the wind turbine 1 is rotatably mounted on the inside of the cover plate 16.

[0017] Generator 2, rectifier 3, battery 4, and inverter 5 are all installed in the vehicle's engine compartment. The other end of generator 2 is connected to rectifier 3, battery 4, and inverter 5 in that order. There are two small generators, each mounted on either side of the vehicle's engine compartment. When the vehicle is in motion, both generators simultaneously power the air conditioning system. The shafts of both generators 2 are connected to the shaft of wind turbine 1. When wind turbine 1 rotates, it drives the main shafts of generators 2 to rotate. Rectifier 3 converts the three-phase AC power output by generator 2 into DC power. Battery 4, consisting of multiple 200AH / 12V cells, stores the rectified DC power. Inverter 5 converts the power stored in battery 4 into AC power for transmission to the air conditioning system. The other end of inverter 5 is also connected to vehicle battery 19, which in turn is connected to controller 6. Controller 6 is mounted on the vehicle's console and connected to battery 4 and the air conditioning system to control the charging and discharging of battery 4 and the starting and stopping of the air conditioning system. The wind turbine is provided with a wind rotor, and the air inlet, wind rotor and generator constitute a wind power system.

[0018] The air conditioning device includes a refrigeration compressor 7 , a condenser 11 , a receiver-drier 10 , an expansion valve 9 and an evaporator 8 . The refrigeration compressor 7 is installed inside the vehicle engine compartment and is used to compress and discharge the refrigerant. One end of the refrigeration compressor 7 is connected to the high-pressure pipeline, and the refrigeration compressor 7 is electrically connected to the controller 6; the condenser 11 is installed behind the radiator frame at the front end of the vehicle and is used to cool the high-temperature and high-pressure gaseous refrigerant into a high-temperature and high-pressure liquid refrigerant. One end of the condenser 11 is connected to the high-pressure pipeline, and a condensing fan 20 is provided on the condenser 11; the liquid storage dryer 10 is used to filter impurities and moisture in the refrigerant, and one end of the liquid storage dryer 10 is connected to one end of the condenser 11 through a liquid pipeline; the expansion valve 9 is used to throttle the refrigerant, and one end of the expansion valve 9 is connected to one end of the liquid storage dryer 10 through a liquid pipeline; the evaporator 8 is installed below the front windshield frame in the vehicle and is used for heat exchange between the refrigerant and the air in the vehicle. One end of the evaporator 8 is connected to one end of the expansion valve 9 through a liquid pipeline, and the other end is connected to the refrigeration compressor 7 through a return air pipeline; a blower 12 is provided above the evaporator 8 to blow the cooled air into the vehicle compartment.

[0019] Working Principle: When a vehicle is moving, air flows from the air inlet 13 through the air guide 14 toward the wind turbine 1, driving the wind turbine 1 to rotate, thereby driving the generator 2 to rotate and start generating electricity. The AC power generated by the generator 2 is rectified by the rectifier 3 and stored in the battery 4. Under the control of the controller 6, the battery 4 discharges and is converted into AC power by the inverter 5 to power the air conditioning system. When the battery 4 is fully charged and the power of the generator 2 exceeds the required cooling load of the vehicle, the excess power flows to the vehicle battery 19, directly supplying part of the power to the electric vehicle. When the power of the generator 2 is less than the required cooling load of the vehicle and the battery 4 is insufficient, the vehicle battery 19 is used to provide part of the power to the air conditioning system. When the vehicle is moving, the air inlet 13 opens, and some air enters the air guide 14. The air is then directed by the air guide plate 15 to the wind turbine 1, driving the wind turbine 1 to rotate at high speed. Part of the wind energy is converted into mechanical energy of the wind turbine 1, which is then converted into electrical energy by the generator 2. The air then flows out through the air outlet 17.

[0020] The present invention is further illustrated below by calculation.

[0021] (1) Calculation of air conditioning power consumption: ; Where W represents power consumption, kWh; P represents the input power of the air conditioner, kW; the input power of the car air conditioner is 3kW; It represents the running time of the air conditioner, h. If it is 3h, the total power consumption of the air conditioner is 9kW.

[0022] (2) Calculation of battery charge capacity: ; Where, E represents the power generation, kWh; Indicates air density, kg / , take 1.293kg / ; A represents the wind sweeping area of ​​the fan impeller, , take 0.03 ; Indicates the driving speed, m / s, usually 0-33m / s; represents the wind energy utilization coefficient, that is, the efficiency of wind turbines extracting energy from wind, which is taken as 0.35; Indicates the conversion efficiency of the generator, which is taken as 0.8; Indicates the generator running time, h.

[0023] (3) Battery full charge time during air conditioning operation calculate: ; ; in, Indicates the battery charge capacity per hour, kWh; When taking 20m / s, the above formula is calculated to be ; W represents the total amount of electricity that the battery can store, which is 9kWh; P is the power consumption of the air conditioner per hour, kWh, which is 3kWh; thus we can get h.

[0024] Therefore, the present invention adopts the above-mentioned electric vehicle air-conditioning device based on wind power generation, which has a reasonable structural design and can use the wind power generated during the vehicle's forward driving to generate electricity to power the vehicle's air-conditioning system, which will greatly improve the stability of the electric vehicle during the operation of the air-conditioning system.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electric vehicle air conditioning device based on wind power generation, characterized by: It includes an air guide mechanism, a wind turbine, a generator, a rectifier, a battery, an inverter, a controller and an air conditioning device. The air guide mechanism is symmetrically installed on the left and right sides of the vehicle engine compartment. The air guide mechanism includes a cover plate and an air guide plate. The cover plate is provided with openings at the front and rear, serving as an air inlet and an air outlet respectively. The air guide plate is installed on the inner side of the cover plate. A vertical shaft seat is provided on the cover plate. The wind turbine is rotatably arranged on the inner side of the cover plate through the vertical shaft seat.

2. The electric vehicle air conditioning device based on wind power generation according to claim 1, characterized in that: The generator, the rectifier, the battery and the inverter are all installed in the engine compartment of the vehicle, and the other end of the generator is connected to the rectifier, the battery and the inverter in sequence.

3. The electric vehicle air conditioning device based on wind power generation according to claim 2, characterized in that: The number of the generators is set to two, which are installed on both sides of the vehicle engine compartment respectively. The rotating shafts of the two generators are connected to the rotating shaft of the wind turbine. The controller is installed on the console inside the vehicle, and the controller is connected to the battery and the air conditioning device.

4. The electric vehicle air conditioning device based on wind power generation according to claim 1, characterized in that: The other end of the inverter is also connected to a car battery, and the other end of the car battery is connected to the controller.

5. The electric vehicle air conditioning device based on wind power generation according to claim 1, characterized in that: The air-conditioning device includes a refrigeration compressor, a condenser, a liquid storage dryer, an expansion valve and an evaporator. The refrigeration compressor is installed inside the vehicle engine compartment, the condenser is installed behind the front radiator frame of the car, one end of the condenser is connected to the high-pressure pipeline, and the evaporator is installed below the front windshield frame inside the car.

6. The electric vehicle air conditioning device based on wind power generation according to claim 5, characterized in that: One end of the refrigeration compressor is connected to the high-pressure pipeline, and the refrigeration compressor is electrically connected to the controller, one end of the liquid storage dryer is connected to one end of the condenser through a liquid pipeline, one end of the expansion valve is connected to one end of the liquid storage dryer through a liquid pipeline, one end of the evaporator is connected to one end of the expansion valve through a liquid pipeline, and the other end is connected to the refrigeration compressor through a return air pipeline.

7. The electric vehicle air conditioning device based on wind power generation according to claim 6, characterized in that: A condensing fan is provided on the condenser, and a blower is provided above the evaporator.

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