阅读说明：本技术 一种氢能汽车采暖系统 (Hydrogen energy automobile heating system ) 是由 陈振武 郝义国 魏成龙 李洋洋 于 2019-10-31 设计创作，主要内容包括：本发明提供了一种氢能汽车采暖系统,包括FCU散热器,FCU燃料电池堆,四通水阀,水泵,水暖PTC,暖风芯体及风机总成,第一水温传感器,第二水温传感器和膨胀水箱；FCU散热器、FCU燃料电池堆、膨胀水箱和第一水温传感器组成燃料电池回路,水泵、水暖PTC、第二水温传感器和暖风芯体及风机总成组成暖风回路；四通水阀将暖风回路与燃料电池回路隔开,四通水阀具有a、b、c、d四个水口以调节冷却水的流量和方向,a、b水口连接到燃料电池回路的FCU散热器和FCU燃料电池堆之间,c水口连接到暖风回路的水泵,d水口连接到暖风回路的暖风芯体及风机总成。(The invention provides a hydrogen energy automobile heating system which comprises an FCU radiator, an FCU fuel cell stack, a four-way water valve, a water pump, a water heating PTC, a warm air core body, a fan assembly, a first water temperature sensor, a second water temperature sensor and an expansion water tank, wherein the FCU radiator is connected with the four-way water valve; the FCU radiator, the FCU fuel cell stack, the expansion water tank and the first water temperature sensor form a fuel cell loop, and the water pump, the water heating PTC, the second water temperature sensor, the warm air core body and the fan assembly form a warm air loop; the four-way water valve separates the warm air loop from the fuel cell loop, the four-way water valve is provided with four water gaps of a, b, c and d to adjust the flow and the direction of cooling water, the water gaps of a and b are connected between an FCU radiator and an FCU fuel cell stack of the fuel cell loop, the water gap of c is connected to a water pump of the warm air loop, and the water gap of d is connected to a warm air core body and a fan assembly of the warm air loop.)

1. A hydrogen energy automobile heating system is characterized by comprising an FCU radiator, an FCU fuel cell stack, a four-way water valve, a water pump, a water heating PTC, a warm air core body, a fan assembly, a first water temperature sensor, a second water temperature sensor and an expansion water tank; the FCU radiator, the FCU fuel cell stack, the expansion water tank and the first water temperature sensor are sequentially connected to form a fuel cell loop, and the water pump, the water heating PTC, the second water temperature sensor, the warm air core body and the fan assembly are sequentially connected to form a warm air loop; the four-way water valve separates the warm air loop from the fuel cell loop, the four-way water valve is provided with four water gaps of a, b, c and d to adjust the flow and the direction of cooling water, the water gaps of a and b are connected between an FCU radiator and an FCU fuel cell stack of the fuel cell loop, the water gap of c is connected to a water pump of the warm air loop, and the water gap of d is connected to a warm air core body and a fan assembly of the warm air loop;

the first water temperature sensor and the second water temperature sensor are also connected to a vehicle-mounted control unit of the hydrogen energy automobile, the first water temperature sensor is used for collecting the water temperature of the fuel cell loop in real time and feeding back the water temperature to the vehicle-mounted control unit, and the second water temperature sensor is used for collecting the water temperature of the warm air loop in real time and feeding back the water temperature to the vehicle-mounted control unit; the vehicle-mounted control unit is also connected with the four-way water valve, the water pump, the water heating PTC, the warm air core body and the fan assembly so as to control the working states of the four-way water valve, the water pump, the water heating PTC, the warm air core body and the fan assembly.

2. The heating system of claim 1, wherein the specific operation process of the system comprises:

the FCU fuel cell stack starts to work, generates heat while generating electricity, enables the water temperature of a fuel cell loop to rise continuously, a first water temperature sensor collects the water temperature of the fuel cell loop and feeds the water temperature back to a vehicle-mounted control unit, a second water temperature sensor collects the water temperature of a warm air loop and feeds the water temperature back to the vehicle-mounted control unit, when the water temperature of the warm air loop ranges from minus 20 ℃ to minus 10 ℃, the vehicle-mounted control unit controls a water heating PTC and a water pump to start working, the vehicle-mounted control unit controls a port a and a port b of a four-way water valve to be closed and a port c and a port d to be opened, water starts to circulate in the warm air loop, after the water temperature rises, the current water temperature of the warm air loop is monitored by the second water temperature sensor to reach 50 ℃, the temperature of the water temperature of the fuel cell loop is compared with the water temperature collected by the first water temperature sensor, and when the water temperature, the vehicle-mounted control unit controls the water heating PTC to be closed, two ports a and b of the four-way water valve are opened, two ports c and d of the four-way water valve are kept opened, hot water in the fuel cell loop enters the warm air loop, and the warm air and fan assembly continuously supplies heat to the cockpit by means of heat generated by the FCU fuel cell stack;

after the FCU fuel cell stack starts to work, heat is mainly dissipated through an FCU radiator, the vehicle-mounted control unit collects water temperature information of a fuel cell loop through the first water temperature sensor, when the water temperature of the fuel cell loop is higher than 60 ℃, the vehicle-mounted control unit controls four ports of a, b, c and d of the four-way water valve to be fully opened, meanwhile, the vehicle-mounted control unit controls the water pump, the water heater PTC, the warm air and the fan assembly to be out of work, it is guaranteed that no redundant hot air enters the cockpit, and therefore the temperature of the cockpit is guaranteed to be comfortable.

3. The system of claim 1, wherein the FCU radiator is a heat exchanger for dissipating heat from the system by exchange with ambient air.

4. The heating system of claim 1, wherein the FCU fuel cell stack is a primary heat generating unit and a power unit.

5. The heating system of claim 1, wherein the four-way water valve is used for monitoring the direction and flow of the water channel by adjusting four water ports a, b, c and d.

6. The heating system of claim 1, wherein the water pump is used to circulate water.

7. The hydrogen-powered automobile heating system as claimed in claim 1, wherein the water heating PTC is used for heating the coolant by converting electric energy.

8. The heating system of claim 1, wherein the warm air core and the fan of the fan assembly supply heat from the coolant to the cockpit through the warm air core.

9. The system of claim 1, wherein the first water temperature sensor is configured to monitor a water temperature of the fuel cell circuit, and the second water temperature sensor is configured to monitor a water temperature of the warm air circuit.

10. The heating system of claim 1, wherein the expansion tank is used for water supply and exhaust of the whole system.

Technical Field

The invention relates to the field of hydrogen energy automobiles, in particular to a hydrogen energy automobile heating system.

Background

With the development of fuel cell vehicles and the wide application of network technologies in vehicles, more and more manufacturers pay more attention to the improvement of the overall driving experience by utilizing the specific internal structure of the fuel cell vehicle, and a heating system is one of the fuel cell vehicles. However, the heating system of the current fuel cell automobile still adopts the structure of the heating system of the traditional automobile, and does not utilize the heat generated by the electricity generation of the fuel cell, if the heat generated by the electricity generation of the fuel cell can be used for heating, the heating quality can be greatly improved, the heat generation requirement of the heating system can be reduced, and the energy consumption can be saved.

Disclosure of Invention

The invention aims to solve the technical problem that the conventional fuel cell automobile heating system does not utilize the heat generated by the power generation of the fuel cell, and provides a hydrogen energy automobile heating system to solve the technical defects.

A hydrogen energy automobile heating system comprises an FCU radiator, an FCU fuel cell stack, a four-way water valve, a water pump, a water heating PTC, a hot air core body, a fan assembly, a first water temperature sensor, a second water temperature sensor and an expansion water tank; the FCU radiator, the FCU fuel cell stack, the expansion water tank and the first water temperature sensor are sequentially connected to form a fuel cell loop, and the water pump, the water heating PTC, the second water temperature sensor, the warm air core body and the fan assembly are sequentially connected to form a warm air loop; the four-way water valve separates the warm air loop from the fuel cell loop, the four-way water valve is provided with four water gaps of a, b, c and d to adjust the flow and the direction of cooling water, the water gaps of a and b are connected between an FCU radiator and an FCU fuel cell stack of the fuel cell loop, the water gap of c is connected to a water pump of the warm air loop, and the water gap of d is connected to a warm air core body and a fan assembly of the warm air loop;

the first water temperature sensor and the second water temperature sensor are also connected to a vehicle-mounted control unit of the hydrogen energy automobile, the first water temperature sensor is used for collecting the water temperature of the fuel cell loop in real time and feeding back the water temperature to the vehicle-mounted control unit, and the second water temperature sensor is used for collecting the water temperature of the warm air loop in real time and feeding back the water temperature to the vehicle-mounted control unit; the vehicle-mounted control unit is also connected with the four-way water valve, the water pump, the water heating PTC, the warm air core body and the fan assembly so as to control the working states of the four-way water valve, the water pump, the water heating PTC, the warm air core body and the fan assembly.

Further, the specific working process of the system comprises:

the FCU fuel cell stack starts to work, generates heat while generating electricity, enables the water temperature of a fuel cell loop to rise continuously, a first water temperature sensor collects the water temperature of the fuel cell loop and feeds the water temperature back to a vehicle-mounted control unit, a second water temperature sensor collects the water temperature of a warm air loop and feeds the water temperature back to the vehicle-mounted control unit, when the water temperature of the warm air loop ranges from minus 20 ℃ to minus 10 ℃, the vehicle-mounted control unit controls a water heating PTC and a water pump to start working, the vehicle-mounted control unit controls a port a and a port b of a four-way water valve to be closed and a port c and a port d to be opened, water starts to circulate in the warm air loop, after the water temperature rises, the current water temperature of the warm air loop is monitored by the second water temperature sensor to reach 50 ℃, the temperature of the water temperature of the fuel cell loop is compared with the water temperature collected by the first water temperature sensor, and when the water temperature, the vehicle-mounted control unit controls the water heating PTC to be closed, two ports a and b of the four-way water valve are opened, two ports c and d of the four-way water valve are kept opened, hot water in the fuel cell loop enters the warm air loop, and the warm air and fan assembly continuously supplies heat to the cockpit by means of heat generated by the FCU fuel cell stack;

after the FCU fuel cell stack starts to work, heat is mainly dissipated through an FCU radiator, the vehicle-mounted control unit collects water temperature information of a fuel cell loop through the first water temperature sensor, when the water temperature of the fuel cell loop is higher than 60 ℃, the vehicle-mounted control unit controls four ports of a, b, c and d of the four-way water valve to be fully opened, meanwhile, the vehicle-mounted control unit controls the water pump, the water heater PTC, the warm air and the fan assembly to be out of work, it is guaranteed that no redundant hot air enters the cockpit, and therefore the temperature of the cockpit is guaranteed to be comfortable.

Further, the FCU radiator is a heat exchanger for dissipating heat of the system by exchange with ambient air.

Further, the FCU fuel cell stack is the main heat generating unit and power unit.

Furthermore, the four-way water valve is used for monitoring the direction and the flow of the water channel by adjusting the four water gaps a, b, c and d.

Further, the water pump is used for promoting the waterway circulation to work.

Further, the water heating PTC is used to heat the coolant by converting electric energy.

Furthermore, the warm air core body and the fan in the fan assembly send the heat in the cooling liquid to the cockpit through the warm air core body.

Furthermore, the first water temperature sensor is used for monitoring the water temperature of the fuel cell loop, and the second water temperature sensor is used for monitoring the water temperature of the warm air loop.

Further, the expansion tank is used for water replenishing and air exhausting of the whole system.

Compared with the prior art, the invention has the beneficial effects that: the invention can utilize the waste heat of the hydrogen fuel cell in the hydrogen energy automobile and the independent water heating PTC to heat the passenger compartment through the heat control under different working conditions of the whole automobile, thereby improving the driving and riding comfort of the driver and the passengers.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a structural diagram of a heating system of a hydrogen energy automobile according to the present invention;

FIG. 2 is a schematic diagram of the control logic of the onboard control unit of the present invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

A hydrogen energy automobile heating system is shown in figure 1 and comprises an FCU radiator 1, an FCU fuel cell stack 2, a four-way water valve 3, a water pump 4, a water heater PTC5, a warm air core body and fan assembly 6, a first water temperature sensor 7, a second water temperature sensor 8 and an expansion water tank 9; the FCU radiator 1, the FCU fuel cell stack 2, the expansion water tank 9 and the first water temperature sensor 7 are sequentially connected to form a fuel cell loop, and the water pump 4, the water heating PTC5, the second water temperature sensor 8, the warm air core body and the fan assembly 6 are sequentially connected to form a warm air loop; the four-way water valve 3 separates the warm air loop from the fuel cell loop, the four-way water valve 3 is provided with four water ports a, b, c and d to adjust the flow and the direction of cooling water, the water ports a and b are connected between the FCU radiator 1 and the FCU fuel cell stack 2 of the fuel cell loop, the water port c is connected to the water pump 4 of the warm air loop, and the water port d is connected to the warm air core body and the fan assembly 6 of the warm air loop.

The first water temperature sensor 7 and the second water temperature sensor 8 are further connected to a vehicle-mounted control unit of the hydrogen energy automobile, the first water temperature sensor 7 is used for collecting water temperature of the fuel cell loop in real time and feeding back the water temperature to the vehicle-mounted control unit, and the second water temperature sensor 8 is used for collecting water temperature of the warm air loop in real time and feeding back the water temperature to the vehicle-mounted control unit. As shown in fig. 2, the vehicle-mounted control unit is further connected with the four-way water valve 3, the water pump 4, the water heater PTC5 and the warm air core and fan assembly 6 to control the working states of the four-way water valve 3, the water pump 4, the water heater PTC5 and the warm air core and fan assembly 6.

The FCU radiator 1 is a heat exchanger for dissipating heat of the system by exchange with ambient air.

The FCU fuel cell stack 2 is the main heat generating unit and power unit.

The four-way water valve 3 is used for monitoring the direction and the flow of the water channel by adjusting the four water gaps a, b, c and d.

The water pump 4 is used for promoting the water circuit to work circularly.

The water heating PTC5 is used to heat the coolant by converting electrical energy.

The fan in the warm air core body and fan assembly 6 sends the heat in the cooling liquid to the cockpit through the warm air core body.

The first water temperature sensor 7 is used to monitor the water temperature of the fuel cell circuit.

The second water temperature sensor 8 is used for monitoring the water temperature of the warm air loop.

The expansion tank 9 is used for water supplement and air exhaust of the whole system.

The working conditions of the system specifically comprise:

a. the winter low-temperature heating working condition is as follows:

the FCU fuel cell stack 2 starts to work, generates heat while generating electric quantity, so that the water temperature of the fuel cell loop continuously rises, and the first water temperature sensor 7 collects the water temperature of the fuel cell loop and feeds the water temperature back to the vehicle-mounted control unit. The second water temperature sensor 8 collects the water temperature of the warm air loop and feeds the water temperature back to the vehicle-mounted control unit, when the water temperature of the warm air loop is between minus 20 ℃ and minus 10 ℃, the vehicle-mounted control unit controls the water heating PTC5 and the water pump 4 to start working, the vehicle-mounted control unit controls the opening of the ports a and b of the four-way water valve 3 to be closed, the opening of the ports c and d is realized, water starts to circulate in the warm air loop, after the water temperature is increased, the second water temperature sensor 8 monitors that the current water temperature of the warm air loop reaches 50 ℃, the temperature of the water is compared with the water temperature of the fuel cell loop collected by the first water temperature sensor 7, when the water temperature of the warm air loop is higher than the water temperature of the fuel cell loop by 5 ℃, the vehicle-mounted control unit controls the water heating 5 to be closed, the opening of the ports a and b of the four-way water valve 3 to be opened, the two ports c and, the warm air and fan assembly 6 continuously supplies heat to the cockpit by means of heat generated by the FCU fuel cell stack 2.

b. Summer high-temperature working condition:

the FCU fuel cell stack 2 starts to work, heat is generated while electricity is generated, the heat is mainly dissipated through the FCU radiator 1, the vehicle-mounted control unit collects water temperature information of a fuel cell loop through the first water temperature sensor 7, when the water temperature of the fuel cell loop is higher than 60 ℃, the vehicle-mounted control unit controls four ports a, b, c and d of the four-way water valve 3 to be fully opened, meanwhile, the vehicle-mounted control unit controls the water pump 4, the water heater PTC5, the warm air and the fan assembly 6 to be out of work, it is guaranteed that no redundant hot air enters a cockpit, and therefore the temperature comfort of the cockpit is guaranteed.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.