阅读说明：本技术 一种基于燃料电池余热利用的客车 (Passenger car based on fuel cell waste heat utilization ) 是由 柴结实 杨春博 赵琨 于 2018-07-06 设计创作，主要内容包括：本发明涉及一种基于燃料电池余热利用的客车,包括乘客舱,乘客舱顶部两侧设置有风道,风道中设置有用于向乘客舱排气的风扇,车顶到乘客舱之间的空间区域中至少一侧还设有用于燃料电池散热的散热器芯体,乘客舱顶部还设置有可开合的乘客舱挡板。通过开关挡板和风扇,改变车顶到乘客舱之间的空间区域中空气流动的方向。在低温工况下,通过装置内空气流动利用燃料电池余热对车厢供暖；解决了传统供暖方式整车电耗大、降低整车行驶里程的问题。(The invention relates to a passenger car based on fuel cell waste heat utilization, which comprises a passenger compartment, wherein air channels are arranged on two sides of the top of the passenger compartment, fans used for exhausting air to the passenger compartment are arranged in the air channels, a radiator core body used for radiating the fuel cell is further arranged on at least one side of a space area between a car roof and the passenger compartment, and a passenger compartment baffle capable of being opened and closed is further arranged on the top of the passenger compartment. By opening and closing the shutter and the fan, the direction of air flow in the space area between the roof and the passenger compartment is changed. Under the low-temperature working condition, the carriage is heated by utilizing the waste heat of the fuel cell through air flow in the device; the problem of traditional heating mode whole car power consumption big, reduce whole car mileage of traveling is solved.)

1. The passenger car based on the utilization of the waste heat of the fuel cell comprises a passenger compartment, wherein air ducts are arranged on two sides of the top of the passenger compartment, and fans used for exhausting air to the passenger compartment are arranged in the air ducts.

2. The passenger car based on the utilization of the waste heat of the fuel cell as claimed in claim 1, further comprising a main fan arranged on the roof of the car and an openable and closable main baffle matched with the main fan; and the side surface of the radiator core body is also provided with an openable side baffle plate for gas exchange.

3. The fuel cell waste heat utilization-based passenger vehicle according to claim 2, wherein the radiator core is disposed at an acute angle to both the roof of the passenger compartment and the side of the vehicle.

Technical Field

The invention belongs to the technical field of fuel cell automobiles, and particularly relates to a passenger car based on fuel cell waste heat utilization.

Background

The fuel cell is a device for directly converting chemical energy of fuel into electric energy, can continuously output the electric energy only by introducing the fuel and oxidant, and has the advantages of high energy conversion rate, cleanness, environmental protection and no need of charging. The fuel cell automobile has become an important direction for the development of new energy automobiles due to the characteristics of long endurance and short hydrogenation time. The electric efficiency of the fuel cell is about 50%, 1kW of heat can be generated when 1kW of electricity is generated, and for a 30kW fuel cell device, 30kW of waste heat is generated, so that the heat is huge, but no scheme for utilizing the waste heat of the fuel cell exists in the industry at present, and the part of the waste heat is discharged into the atmosphere in both winter and summer.

For the condition of low temperature, the maximum heating requirement of the passenger compartment in winter is 30-40kW, most of the requirements are met by an air conditioner, a water heater or an electric heating radiator, and for pure electric vehicles and fuel cell vehicles, a large amount of electricity is used for heating in winter, so that the electricity consumption of the whole vehicle is greatly improved, and the driving range of the whole vehicle is reduced.

Disclosure of Invention

The invention aims to provide a passenger car based on fuel cell waste heat utilization, which utilizes the waste heat of a fuel cell for heating of a vehicle and is used for solving the problems of large power consumption of the whole vehicle and reduction of the driving mileage of the whole vehicle in the traditional heating mode.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the invention provides a passenger car based on fuel cell waste heat utilization, which comprises a passenger compartment, wherein air channels are arranged on two sides of the top of the passenger compartment, fans used for exhausting air to the passenger compartment are arranged in the air channels, a radiator core body used for radiating fuel cells is further arranged on at least one side of a space area between a car roof and the passenger compartment, and a passenger compartment baffle capable of being opened and closed is further arranged on the top of the passenger compartment.

The invention has the beneficial effects that:

the fuel cell waste heat utilization device provided by the invention changes the direction of air flow in a space area between the roof and the passenger compartment through the switch baffle and the fan. Under the low-temperature working condition, the carriage is heated by utilizing the waste heat of the fuel cell through air flow in the device. The problem of traditional heating mode whole car power consumption big, reduce whole car mileage of traveling is solved.

Furthermore, the automobile roof air conditioner also comprises a main fan arranged on the roof and an openable main baffle matched with the main fan; the side surface of the radiator core body is also provided with an openable side baffle plate for gas exchange.

Further, the radiator core is arranged at an acute angle with the top of the passenger compartment and the side of the vehicle.

Drawings

FIG. 1 is a top plan view of a passenger vehicle;

FIG. 2 is a front view of a passenger vehicle;

FIG. 3 is a low-temperature working principle diagram for utilizing waste heat of a fuel cell of a passenger car;

FIG. 4 is a schematic diagram of the waste heat utilization non-low temperature operation of a passenger car fuel cell.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

The basic principle of the invention is as follows:

the direction of air flow in the fuel cell waste heat utilization device is changed by opening and closing the baffle and the fan. Under the low-temperature working condition, the waste heat of the fuel cell is sent into the carriage through the air duct, and under the non-low-temperature working condition, the waste heat of the fuel cell is discharged out of the vehicle through the fan and the baffle.

As shown in fig. 1, a roof of a passenger car is provided with a plurality of roof main fans constituting a roof main fan group a, and a plurality of fans for exhausting air to the passenger compartment are respectively provided in air paths on both sides of the top of the passenger compartment, constituting a fan group B and a fan group C; an openable and closable main baffle plate 1 matched with the main fan set A is further arranged below the roof main fan set A, and a passenger compartment baffle plate 4 is arranged at the top of the passenger compartment. As shown in fig. 1 and 2, the fuel cell radiator core is disposed in a space region between the roof and the passenger compartment at an angle of 45 ° to the top of the passenger compartment, and openable and closable side guards 2 and 3 for gas exchange are further provided on the sides of the radiator core.

Under the low-temperature working condition, the working principle of the passenger car when the passenger car utilizes the waste heat of the fuel cell is shown in fig. 3, the cooling liquid of the fuel cell flows through the radiator core body through a refrigerant pipeline, and because the air is required to blow the heat of the radiator core into the automobile air duct under the low-temperature working condition, the side baffle 3, the side baffle 2 and the main baffle 1 are closed at the moment, and the passenger compartment baffle 4 is opened. The main fan set a is then turned off, and fan set B and fan set C are turned on. Since the fan group B and the fan group C start operating at this time, the fan group B and the fan group C draw the air flowing through the radiator core into the vehicle air duct T1 and the air duct T2, at which time a negative pressure is generated inside the space area between the roof and the passenger compartment, and the air in the passenger compartment enters the space area between the roof and the passenger compartment through the air passage at the top in the passenger compartment (the passenger compartment flap 4 is opened); when air in the vehicle flows through the radiator core, the heat of the fuel cell cooling liquid in the core is taken away, hot air is formed and blown to a passenger compartment, and the effect of heating the passenger compartment is achieved; the air in the passenger compartment continuously flows and is gradually heated, so that the heating requirement of the passenger compartment is met.

Under the non-low temperature working condition, the working principle of the passenger car when the passenger car utilizes the waste heat of the fuel cell is shown in fig. 4, the cooling liquid of the fuel cell flows through the radiator core body through the refrigerant pipeline, and because the heat of the radiator core needs to be discharged out of the car under the non-low temperature working condition, the passenger compartment baffle 4 opens the main baffle 1, the side baffles 2 and the side baffles 3 at the moment. Fan set B and fan set C are then turned off, and main fan set a is turned on. Since the main fan set A starts to work at the moment, air in the space region between the roof and the passenger compartment is pumped out of the vehicle, negative pressure is generated in the space region between the roof and the passenger compartment, and outside air enters the device shell through the air channels on the two sides (the side baffles 2 and 3 are opened); when the cooling liquid flows through the radiator core, the heat of the cooling liquid of the fuel cell in the core is taken away, and the effect of cooling the fuel cell is achieved.

As other embodiments, the radiator core may be disposed at an acute angle of 45 ° to the passenger compartment roof and the vehicle side, in addition to this embodiment.

The basic scheme to be protected by the invention is as follows:

air in the passenger compartment enters a space area between the vehicle roof and the passenger compartment through the passenger compartment baffle plate on the top in the passenger compartment by utilizing the passenger compartment baffle plate to be matched with a fan for exhausting air to the passenger compartment through air ducts on two sides of the top of the passenger compartment; when air in the vehicle flows through the radiator core, the heat of the fuel cell cooling liquid in the core is taken away, hot air is formed and blown to a passenger compartment, and the effect of heating the passenger compartment is achieved. The main fan, the main baffle and the side baffles are added to ensure that the passenger compartment does not need to supply heat when the passenger compartment is applicable to non-low-temperature working conditions, and the heat of the radiator needs to be discharged out of the vehicle by utilizing the added devices.

While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.