CN207345431U - Dehumidifying and cooling device for vehicle - Google Patents

Abstract

The utility model discloses a dehumidifying and cooling device for vehicles, which comprises an air dehumidifying and cooling unit, a dehumidifying solution regenerating unit, a flue gas waste heat recovery unit and a photovoltaic panel power generation unit; the air dehumidification cooling unit is connected with dehumidification solution regeneration unit, and flue gas waste heat recovery unit is connected with dehumidification solution regeneration unit, and photovoltaic board power generation unit is connected with air dehumidification cooling unit and dehumidification solution regeneration unit respectively. The automobile dehumidification cooling device can replace the traditional automobile air conditioner based on a vapor compression type refrigerating system, and reduces the running energy consumption of the automobile air conditioner.

Description

A dehumidification and cooling device for a vehicle

technical field

The utility model relates to a dehumidification and cooling device, in particular to a vehicle dehumidification and cooling device.

Background technique

With the improvement of people's living standards, the number of car ownership continues to increase, and people's requirements for the comfort of the car while driving are also increasing. Drivers rely more and more on automotive air conditioning systems to create a comfortable driving environment. However, most of the current traditional automotive air conditioners are based on fuel-driven vapor compression refrigeration systems, which consume a large amount of output power of the car, and have the disadvantages of high energy consumption and environmental protection.

The tail gas discharged from automobile fuel combustion still has a certain grade, and its temperature is usually higher than 80°C, which has certain utilization value. However, at present, this low-grade heat source is usually directly discharged into the atmosphere without any use, and there are relatively Big energy waste.

Contents of the invention

Technical problem: The technical problem to be solved by this utility model is to provide a vehicle dehumidification and cooling device, which can replace the traditional car air conditioner based on the vapor compression refrigeration system and reduce the energy consumption of the car air conditioner.

Technical solution: In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A dehumidification and cooling device for vehicles, including an air dehumidification and cooling unit, a dehumidification solution regeneration unit, a flue gas waste heat recovery unit, and a photovoltaic panel power generation unit; the air dehumidification and cooling unit is connected to the dehumidification solution regeneration unit, and the flue gas waste heat recovery unit is regenerated with the dehumidification solution The units are connected, and the photovoltaic panel power generation unit is respectively connected with the air dehumidification and cooling unit and the dehumidification solution regeneration unit.

As a preferred example, the air dehumidification and cooling unit includes a fan, a dehumidifier, a semiconductor cooling chip and an air valve, the air outlet of the fan is connected to the air inlet of the dehumidifier, and the air outlet of the dehumidifier is connected to the air inlet of the cooling end of the semiconductor cooling chip connection, the air valve is installed at the air outlet of the cooling end of the semiconductor cooling chip.

As a preferred example, the dehumidification solution regeneration unit includes a dehumidifier, a first solution valve, a first solution pump, a semiconductor refrigeration chip, a second solution valve, a flue gas internal heat type regenerator, a liquid storage tank, a third solution valve and a second solution valve. Two solution pumps; the solution outlet end of the dehumidifier is connected to the solution inlet of the heating end of the semiconductor refrigeration sheet, and the first solution valve and the first solution pump are located between the solution outlet end of the dehumidifier and the solution inlet of the heating end of the semiconductor refrigeration sheet; The solution outlet of the heating end of the refrigerating sheet is connected to the solution inlet of the flue gas internal heating type regenerator, and a second solution valve is installed between the heating end of the semiconductor cooling sheet and the solution inlet of the flue gas internal heating type regenerator; the flue gas internal heating type The solution outlet of the regenerator is connected to the inlet of the liquid storage tank, the outlet of the liquid storage tank is connected to the solution inlet of the dehumidifier, and a third solution valve and a second solution pump are arranged between the outlet of the liquid storage tank and the solution inlet of the dehumidifier; The dehumidifier in the dehumidification solution regeneration unit and the dehumidifier in the air dehumidification and cooling unit are the same dehumidifier; the semiconductor refrigeration chip in the dehumidification solution regeneration unit and the semiconductor refrigeration chip in the air dehumidification and cooling unit are the same semiconductor refrigeration chip.

As a preferred example, the flue gas waste heat recovery unit includes a flue gas internal heat regenerator and a flue gas valve; the flue gas valve is connected to the flue gas inlet of the flue gas internal heat regenerator; the flue gas internal heat regenerator in the flue gas waste heat recovery unit The regenerator is the same part as the flue gas internal heat regenerator in the dehumidification solution regeneration unit.

As a preferred example, the flue gas internal heating type regenerator is provided with a flue gas tube bundle, and the flue gas inlet of the flue gas tube bundle is connected to the flue gas valve; the upper part of the flue gas internal heating type regenerator is provided with a solution inlet pipeline, and the solution The inlet pipeline is provided with a nozzle; the lower end of the flue gas internal heating type regenerator is provided with a solution outlet; the side wall of the flue gas internal heating type regenerator is provided with a regeneration air inlet, the The top is provided with a regenerated air outlet, and an induced draft fan is arranged on the regenerated air outlet.

As a preferred example, the photovoltaic panel power generation unit includes a photovoltaic panel, a potentiometer, a semiconductor refrigerating sheet and a storage battery, the photovoltaic panel is fixed on the roof, the photovoltaic panel is connected with one end of the potentiometer, and the other end of the potentiometer is connected with The power supply inlet end is connected, and the power outlet end of the semiconductor refrigeration sheet is connected to the battery; the semiconductor refrigeration sheet in the photovoltaic panel power generation unit and the semiconductor refrigeration sheet in the air dehumidification and cooling unit are the same semiconductor refrigeration sheet.

As a preferred example, the semiconductor refrigerating sheet is composed of multiple semiconductor refrigerating sheets; the cold end of the semiconductor refrigerating sheet is provided with a first serpentine tube, the hot end is provided with a second serpentine tube, and air is passed through the first serpentine tube , a dehumidifying solution passes through the second serpentine tube.

As a preferred example, the photovoltaic panel is composed of multiple photovoltaic panel units spliced together.

Beneficial effects: Compared with the prior art, the vehicle dehumidification and cooling device of the embodiment of the utility model replaces the traditional automobile air conditioner based on the vapor compression refrigeration system, and reduces the energy consumption of the automobile air conditioner. The device of the embodiment of the utility model utilizes the residual heat of automobile exhaust to drive the solution dehumidification system to dehumidify the ambient air in the vehicle, and at the same time, uses solar energy to drive a semiconductor refrigeration device to cool down the environment in the vehicle. The two air treatment processes of dehumidification and cooling are carried out in sequence. First, the solution is used to dehumidify the air, and then the semiconductor refrigeration device is used to cool the dehumidified air, realizing the independent treatment of air temperature and humidity based on the utilization of waste heat. The residual heat of the tail gas is used to heat the dehumidified dilute solution, so as to ensure the continuous operation of the solution dehumidification system. The water vapor partial pressure in the air is higher than the water vapor partial pressure on the surface of the dehumidification solution, and the resulting water vapor partial pressure difference is the mass transfer driving force different from traditional condensation dehumidification. Driven by the partial pressure difference of water vapor, the moisture in the air is absorbed by the solution to achieve the purpose of dehumidification, which is more energy-saving than traditional condensation dehumidification. The dehumidified air is further cooled by the semiconductor refrigeration device. This cooling process is sensible heat cooling, and the moisture content of the air does not change. Compared with the traditional simultaneous temperature and humidity treatment process, the embodiment of the utility model requires a higher cooling temperature for the air cooling process, which also produces beneficial energy-saving effects.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is a schematic structural view of the semiconductor refrigeration device in the embodiment of the present invention.

In the figure there are: fan 1, dehumidifier 2, first solution valve 3, first solution pump 4, semiconductor refrigeration chip 5, second solution valve 6, flue gas internal heat regenerator 7, liquid storage tank 8, third solution Valve 9, second solution pump 10, air valve 11, photovoltaic panel 12, potentiometer 13, storage battery 14, smoke valve 15, first serpentine tube 16, second serpentine tube 17.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figure 1, a vehicle dehumidification and cooling device according to an embodiment of the present invention includes an air dehumidification and cooling unit, a dehumidification solution regeneration unit, a flue gas waste heat recovery unit, and a photovoltaic panel power generation unit; the air dehumidification and cooling unit and the dehumidification solution regeneration unit The units are connected, the flue gas waste heat recovery unit is connected with the dehumidification solution regeneration unit, and the photovoltaic panel power generation unit is respectively connected with the air dehumidification cooling unit and the dehumidification solution regeneration unit.

The air dehumidification and cooling unit is used for dehumidifying and cooling the air in the car. The air dehumidification cooling unit is connected with the dehumidification solution regeneration unit. The dehumidification solution regeneration unit is used to regenerate the solution whose concentration has decreased after dehumidification, so that its concentration can be increased again, so as to realize the recycling of the solution, so that the air dehumidification and cooling unit can continue to operate.

The flue gas waste heat recovery unit is connected with the dehumidification solution regeneration unit. The flue gas waste heat recovery unit is used to realize the waste heat recovery of the flue gas. It makes full use of the waste heat of the flue gas to heat the dehumidified dilute solution, so that the water vapor in the dilute solution volatilizes, and the solution can be concentrated and regenerated, that is, the waste heat of the flue gas is used to drive the dehumidification. Solution system operation.

It is the flue gas waste heat recovery unit that heats the dehumidified dilute solution to ensure its concentration and regeneration, so that the dehumidification solution system can circulate. That is to say, in this embodiment, the residual heat of flue gas is used to drive the continuous and effective operation of the dehumidification solution system.

The photovoltaic panel power generation unit is used to make full use of solar energy to generate electricity, provide DC power supply for the semiconductor refrigeration sheet, and make the two ends of the semiconductor refrigeration sheet produce cooling and heating effects respectively, so as to realize the cooling of the sensible heat of the air and the preconditioning of the solution to be regenerated. hot. In addition to supplying direct current to the semiconductor refrigeration sheet, the photovoltaic panel power generation unit can also store excess electricity in the battery for backup.

As preferably, as shown in Figure 1, described air dehumidification and cooling unit comprises blower fan 1, dehumidifier 2, semiconductor cooling plate 5 and air valve 11, and the air outlet of fan 1 is connected with the air inlet end of dehumidifier 2, and dehumidifier 2 The air outlet port is connected with the cooling end air inlet of the semiconductor cooling sheet 5, and the air valve 11 is installed at the air outlet of the semiconductor cooling sheet 5 cooling end.

The air dehumidification and cooling unit is used to realize the dehumidification and cooling of the air in the vehicle. Specifically, the air is blown into the dehumidifier 2 by the fan 1, and becomes dry air after being processed by the dehumidifier 2. The dry air flows through the cold end of the semiconductor cooling chip 5 and is cooled by sensible heat to become low-temperature dry air. Finally, it is sent into the interior space under the control of the air valve 11 to create and maintain a suitable air temperature and humidity environment in the compartment and improve the comfort of the human body.

Preferably, as shown in Figure 1, the dehumidification solution regeneration unit includes a dehumidifier 2, a first solution valve 3, a first solution pump 4, a semiconductor refrigeration chip 5, a second solution valve 6, and a flue gas internal heat type regenerator 7 , a liquid storage tank 8, a third solution valve 9 and a second solution pump 10. The solution outlet of the dehumidifier 2 is connected to the solution inlet of the heating end of the semiconductor cooling plate 5, and the first solution valve 3 and the first solution pump 4 are located between the solution outlet of the dehumidifier 2 and the solution inlet of the heating end of the semiconductor cooling plate 5 . The outlet of the solution at the heating end of the semiconductor cooling sheet 5 is connected to the inlet of the flue gas internal heat regenerator 7, and a second solution valve 6 is provided between the heating end of the semiconductor cooling sheet 5 and the inlet of the flue gas internal heating type regenerator 7. The solution outlet of the flue gas internal heating type regenerator 7 is connected to the inlet of the liquid storage tank 8, the outlet of the liquid storage tank 8 is connected to the solution inlet of the dehumidifier 2, and there is a A third solution valve 9 and a second solution pump 10 . The dehumidifier 2 in the dehumidification solution regeneration unit and the dehumidifier 2 in the air dehumidification cooling unit are the same dehumidifier. The semiconductor refrigeration sheet 5 in the dehumidification solution regeneration unit is the same semiconductor refrigeration sheet 5 as the semiconductor refrigeration sheet 5 in the air dehumidification and cooling unit.

In the above embodiment, preferably, the flue gas internal heating type regenerator 7 is provided with a flue gas tube bundle 7e, and the flue gas inlet of the flue gas tube bundle 7e is connected to the flue gas valve 15 . The upper part of the flue gas internal heating type regenerator 7 is provided with a solution inlet pipeline, and a nozzle 7d is arranged in the solution inlet pipeline. A solution outlet is provided at the lower end of the flue gas internal heating type regenerator 7 . The side wall of the flue gas internal heating type regenerator 7 is provided with a regeneration air inlet 7a, and the top of the flue gas internal heating type regenerator 7 is provided with a regeneration air outlet 7b, and the regeneration air outlet 7b is provided with an induced draft fan 7c. Nozzle 7d is used for spraying dehumidification solution. The flue gas tube bundle 7e is used for the flow of automobile exhaust, and transfers heat to the sprayed dehumidification solution outside the tube. The regeneration air inlet 7a and the regeneration air outlet 7b are used to take away the water vapor evaporated from the dehumidification solution in the flue gas internal heating type regenerator 7 through air flow, so as to realize the regeneration of the dehumidification solution.

The dehumidification solution regeneration unit is used to realize the dehumidification solution regeneration cycle. Taking LiCl solution as a dehumidification solution as an example, the realization process of this function is described in detail. In the dehumidifier 2, the LiCl dehumidification solution that dehumidifies the air is diluted, and the dehumidification capacity decreases. In order to increase the concentration of LiCl dehumidification solution and restore its dehumidification ability, it is pumped through the first solution valve 3 by the first solution pump 4 into the hot end of the semiconductor refrigeration chip 5 for preheating. After the temperature is heated to about 40°C, LiCl The dehumidification solution passes through the second solution valve 6, enters the flue gas internal heat regenerator 7, is sprayed by the nozzle 7d on the outer surface of the internal flue gas tube bundle 7e of the flue gas internal heat type regenerator 7, and flows outside the tube bundle from top to bottom, Exchanging heat with the high-temperature tail gas in the tube bundle, the temperature of the high-temperature tail gas drops, and the dehumidification solution is further heated, and its regeneration temperature can be higher than 60°C. The flue gas internal heat type regenerator 7 is provided with a regeneration air inlet 7a and a regeneration air outlet 7b, and the regeneration air outlet 7b is provided with an induced draft fan 7c. Under the action of the induced draft fan 7c, the regenerating air enters from 7a and flows upward, takes away the volatilized water vapor in the solution, and discharges it from the air outlet 7b. After being fully heated, evaporated and regenerated in the flue gas internal heat regenerator 7, the concentration of the LiCl dehumidification solution rises, and the dehumidification ability recovers. Liquid storage tank 8. The LiCl dehumidification solution is collected and cooled in the liquid storage tank 8, passed through the third solution valve 9, and pumped into the dehumidifier 2 by the second solution pump 10 to achieve the effect of repeated use of the LiCl dehumidification solution. The regeneration of the LiCl dehumidification solution is realized by the dehumidification solution regeneration unit. Among them, the functions of the first solution valve 3 , the second solution valve 6 and the third solution valve 9 are all to regulate the flow of the solution so as to make the solution reach the most suitable circulation flow.

Preferably, as shown in FIG. 1 , the flue gas waste heat recovery unit includes a flue gas internal heat regenerator 7 and a flue gas valve 15 . The flue gas valve 15 is connected to the flue gas inlet of the flue gas internal heat regenerator 7; the flue gas internal heat regenerator 7 in the flue gas waste heat recovery unit is the same part as the flue gas internal heat regenerator 7 in the dehumidification solution regeneration unit.

The flue gas waste heat recovery unit is used to reheat the solution. In this preferred example, the flue gas valve 15 is connected to the exhaust pipe of the vehicle, and the high-temperature exhaust gas enters the internal flue gas tube bundle 7e of the flue gas internal heating type regenerator 7 through the control of the flue gas valve 15 . The dilute solution after dehumidification enters the flue gas internal heating type regenerator 7 through the second solution valve 6, and is sprayed by the nozzle 7d on the outer surface of the internal flue gas tube bundle 7e of the flue gas internal heating type regenerator 7, and the high temperature exhaust gas in the tube bundle and the outside of the tube bundle The dehumidification solution on the surface exchanges heat, the temperature of the high-temperature exhaust gas drops, and the temperature of the dehumidification solution rises. The flue gas waste heat recovery unit effectively utilizes the exhaust heat generated during the working process of the vehicle. The temperature of the high-temperature exhaust gas is generally higher than 80°C. The temperature of the solution after being heated in the flue gas internal heat regenerator 7 can be controlled by the flue gas valve 15, generally exceeding 60°C, which can meet the requirement of solution regeneration. The function of the flue gas valve 15 is to adjust the flue gas flow rate for heat exchange with the solution, so as to achieve the purpose of adjusting the heat exchange amount and the regeneration temperature of the solution after heat exchange. In this embodiment, the temperature of the driving heat source required by the solution dehumidification system is relatively low. The embodiment of the utility model adopts a low-grade automobile exhaust to drive a solution dehumidification system for wet treatment of the air environment in the car.

Preferably, as shown in FIG. 1 , the photovoltaic panel power generation unit includes a photovoltaic panel 12 , a potentiometer 13 , a semiconductor cooling chip 5 and a storage battery 14 . The photovoltaic panel 12 is fixed on the roof of the vehicle. The photovoltaic panel 12 is composed of a plurality of photovoltaic panel units spliced and laid on the exterior and top of the vehicle in a large sun-irradiated area to increase the lighting area and increase the power supply. The photovoltaic panel 12 is connected to one end of the potentiometer 13 , the other end of the potentiometer 13 is connected to the power input end of the semiconductor cooling sheet 5 , and the power outlet end of the semiconductor cooling sheet 5 is connected to the battery 14 . The semiconductor refrigeration sheet 5 in the photovoltaic panel power generation unit and the semiconductor refrigeration sheet 5 in the air dehumidification and cooling unit are the same semiconductor refrigeration sheet.

The photovoltaic panel power generation unit realizes the power supply of the semiconductor refrigeration sheet and the storage of battery power. The photovoltaic panel 12 placed on the roof of the vehicle generates direct current after being irradiated by sunlight, and the direct current is passed into the semiconductor cooling chip 5 after being regulated by the potentiometer 13 . Under the action of direct current, the temperature of the hot end of the semiconductor refrigerating sheet 5 increases and the temperature of the cold end decreases, and the excess direct current will be stored in the storage battery 14 to supplement power generation for the automobile. The function of the potentiometer 13 is to control the current size of the semiconductor cooling plate 5, thereby accurately controlling the temperature at both ends of the semiconductor cooling plate 5. Since the semiconductor cooling plate 5 is very sensitive to current changes, changing the current size can regulate the temperature at both ends of the semiconductor cooling plate.

As a preference, the semiconductor cooling plate 5 is composed of multiple semiconductor cooling plates spliced together, one is to increase the cooling capacity, so that the cooling capacity meets the requirements, and the other is to increase the heat exchange area. As shown in Figure 2, the cold end of the semiconductor cooling plate 5 is provided with a first serpentine tube 16, and the hot end is provided with a second serpentine tube 17, the first serpentine tube 16 is a wider flat air duct, and the second serpentine Shaped pipe 17 is a thinner circular solution pipeline. Air passes through the first serpentine tube 16 , and dehumidification solution passes through the second serpentine tube 17 .

The device of the embodiment of the utility model makes full use of the waste heat of the automobile exhaust, can replace the traditional fuel-driven vapor compression vehicle refrigeration and air-conditioning system, and reduces the energy consumption of the automobile air-conditioning. At the same time, the device in the embodiment of the utility model does not use freon refrigerants, and has good environmental acceptance. While the solution dehumidification technology is used to dehumidify the air in the car, it can make full use of the large-area sun-irradiated area outside and on the top of the car, use photovoltaic panel power generation technology to generate direct current, drive semiconductor refrigeration devices, and perform sensible heat on the air in the car Cool down. This can also effectively reduce the energy consumption of the car air conditioner. The device of the embodiment of the utility model generates direct current through photovoltaic panels, and stores excess electricity for backup, and utilizes renewable and clean energy to achieve better energy-saving and environmental protection effects.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (8)

1. A vehicle dehumidification and cooling device, characterized in that it includes an air dehumidification and cooling unit, a dehumidification solution regeneration unit, a flue gas waste heat recovery unit, and a photovoltaic panel power generation unit; the air dehumidification and cooling unit is connected with the dehumidification solution regeneration unit, and the flue gas waste heat The recovery unit is connected with the dehumidification solution regeneration unit, and the photovoltaic panel power generation unit is respectively connected with the air dehumidification cooling unit and the dehumidification solution regeneration unit. 2. The vehicle dehumidification and cooling device according to claim 1, characterized in that, the air dehumidification and cooling unit includes a fan (1), a dehumidifier (2), a semiconductor cooling chip (5) and an air valve (11), The air outlet of the fan (1) is connected to the air inlet of the dehumidifier (2), the air outlet of the dehumidifier (2) is connected to the air inlet of the cooling end of the semiconductor cooling chip (5), and the air valve (11) is installed on the semiconductor refrigeration At the air outlet of the cooling end of the sheet (5). 3. The vehicle dehumidification and cooling device according to claim 2, characterized in that, the dehumidification solution regeneration unit includes a dehumidifier (2), a first solution valve (3), a first solution pump (4), a semiconductor refrigeration sheet (5), second solution valve (6), flue gas internal heat regenerator (7), liquid storage tank (8), third solution valve (9) and second solution pump (10); dehumidifier (2 ) is connected to the solution inlet of the heating end of the semiconductor cooling chip (5), and the first solution valve (3) and the first solution pump (4) are located at the solution outlet end of the dehumidifier (2) and the semiconductor cooling chip (5) ) between the solution inlets at the heating end; the solution outlet at the heating end of the semiconductor refrigeration sheet (5) is connected to the solution inlet of the flue gas internal heat regenerator (7), and the heating end of the semiconductor refrigeration sheet (5) is connected to the internal heat of the flue gas A second solution valve (6) is provided between the solution inlets of the type regenerator (7); the solution outlet of the flue gas internal heating type regenerator (7) is connected to the inlet of the liquid storage tank (8), and the liquid storage tank (8) The outlet is connected to the solution inlet of the dehumidifier (2), and a third solution valve (9) and a second solution pump (10) are provided between the outlet of the liquid storage tank (8) and the solution inlet of the dehumidifier (2); The dehumidifier (2) in the dehumidification solution regeneration unit and the dehumidifier (2) in the air dehumidification and cooling unit are the same dehumidifier; the semiconductor refrigeration sheet (5) in the dehumidification solution regeneration unit is the same as the semiconductor refrigeration sheet in the air dehumidification and cooling unit (5) It is the same semiconductor refrigeration chip. 4. The vehicle dehumidification and cooling device according to claim 3, characterized in that the flue gas waste heat recovery unit includes a flue gas internal heat regenerator (7) and a flue gas valve (15); the flue gas valve (15) It is connected to the flue gas inlet of the flue gas internal heat regenerator (7); the flue gas internal heat regenerator (7) in the flue gas waste heat recovery unit is the same as the flue gas internal heat regenerator (7) in the dehumidification solution regeneration unit part. 5. The dehumidification and cooling device for vehicles according to claim 3 or 4, characterized in that, the flue gas internal heating type regenerator (7) is provided with a flue gas tube bundle (7e), and the smoke of the flue gas tube bundle (7e) The gas inlet is connected to the flue gas valve (15); the upper part of the flue gas internal heating type regenerator (7) is provided with a solution inlet pipeline, and a nozzle (7d) is arranged in the solution inlet pipeline; the flue gas internal heating type regenerator The lower end of the device (7) is provided with a solution outlet; the side wall of the flue gas internal heating type regenerator (7) is provided with a regeneration air inlet (7a), and the top of the flue gas internal heating type regenerator (7) is provided with A regeneration air outlet (7b), and an induced draft fan (7c) is arranged on the regeneration air outlet (7b). 6. The vehicle dehumidification and cooling device according to claim 2, characterized in that, the photovoltaic panel power generation unit includes a photovoltaic panel (12), a potentiometer (13), a semiconductor cooling chip (5) and a battery (14), The photovoltaic panel (12) is fixed on the roof, and the photovoltaic panel (12) is connected to one end of the potentiometer (13), and the other end of the potentiometer (13) is connected to the power inlet end of the semiconductor refrigeration sheet (5). The power outlet end of the sheet (5) is connected to the battery (14); The semiconductor refrigeration sheet (5) in the photovoltaic panel power generation unit and the semiconductor refrigeration sheet (5) in the air dehumidification and cooling unit are the same semiconductor refrigeration sheet. 7. The vehicle dehumidification and cooling device according to claim 2, characterized in that, the semiconductor cooling chip (5) is composed of multiple semiconductor cooling chips spliced together; the cold end of the semiconductor cooling chip (5) is provided with a first snake The hot end is provided with a second serpentine pipe (16), air is passed through the first serpentine pipe (16), and a dehumidification solution is passed through the second serpentine pipe (17). 8. The vehicle dehumidification and cooling device according to claim 6, characterized in that, the photovoltaic panel (12) is composed of multiple photovoltaic panel units spliced together.