CN214728221U

CN214728221U - Fuel cell system of passenger vehicle

Info

Publication number: CN214728221U
Application number: CN202023040815.2U
Authority: CN
Inventors: 侯昌辉; 吴洁; 霍亮; 王朝云
Original assignee: Mingtian Hydrogen Energy Technology Co ltd
Current assignee: Mingtian Hydrogen Energy Technology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-11-16
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a fuel cell system for passenger vehicles, relating to the technical field of fuel cells for passenger vehicles; in order to solve the problem of low integration level; the automobile body-mounted solar battery comprises a battery module, an electrical system, an air system, a cooling system, a hydrogen system and system key parts, wherein an aluminum plate used for being connected with an automobile body is fixed on the outer wall of the bottom of the battery module through bolts, the system key parts are arranged below the aluminum plate, the electrical system, the air system, the cooling system and the hydrogen system are fixed on the battery module through supports, and the battery module is arranged in a surrounding mode. The utility model discloses in arranging each spare part of fuel cell system with reasonable mode with the front deck of passenger car, taking into account under each circuit, water route, gas circuit rational arrangement's the condition for entire system's the high concentration of arranging makes each spare part easily dismantle and maintain again, all has better improvement to the heat dissipation of system, maintenance convenience and maintainability.

Description

Fuel cell system of passenger vehicle

Technical Field

The invention relates to the technical field of fuel cells of passenger vehicles, in particular to a fuel cell system of a passenger vehicle.

Background

The development of fuel cell systems is one of the core contents of fuel cell automobile development. One reason that the current fuel cell system is intensively applied to buses, logistics vehicles and other large buses is that the vehicles can be arranged in a large space, so that the arrangement and assembly of parts of the fuel cell system are facilitated, and the other reason is that the system integration degree of the parts of each subsystem of the current fuel cell system is generally low due to the fact that the parts are large in size, occupied space is large, and the fuel cell system cannot be applied to the vehicles with limited front cabin space like passenger vehicles.

At present, fuel cell system arrangement of domestic fuel cell automobiles is distributed, and all parts are distributed on all parts of the whole automobile and fixed through brackets, which is unreasonable for improving system integration level of fuel cells and miniaturization direction of the parts, and mainly has two aspects, namely, how large system arrangement span is, flow resistance of an air path, a hydrogen path and a cooling path can be increased, and system heat dissipation is not facilitated; second, it is not conducive to system detection and maintainability.

In summary, the current fuel cell system layout is not favorable for the fuel cell automobile industrialization, and a high integration level fuel cell system layout is required

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a fuel cell system of a passenger vehicle.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a passenger car fuel cell system, includes battery module, electric system, air system, cooling system, hydrogen system and the key spare part of system, battery module bottom outer wall is fixed with through the bolt and is used for the aluminum plate with the automobile body coupling, the key spare part of system sets up in aluminum plate's below, electric system, air system, cooling system, hydrogen system all are fixed in on the battery module through the support, and use the battery module to arrange as the center encirclement type.

Preferably: the battery module is a fuel cell module, and the fuel cell module is wrapped in an aluminum shell, and the aluminum shell is provided with a plurality of interfaces for butting with an air system, a hydrogen system, a cooling system and key parts of the system.

Further: the electrical system comprises a DCDC, an FCCU, a sensor module and a high-low voltage wire harness; DCDC and FCCU are located the battery module top, and directly are connected with the upper cover of battery module through the support, and the sensor module is arranged in air system, cooling system and hydrogen system, and high-low pressure pencil is arranged around the battery module.

On the basis of the scheme: the air system comprises an air filter, an air flow meter, an air compressor, an intercooler, a humidifier, a bypass valve, a back pressure valve and a mixer, wherein the air filter is positioned on the uppermost layer of the right side of the battery module and fixed on an upper cover of the battery module through a support; the bypass valve is positioned at the lower layer of the rear side of the battery module and is fixed on the lower bearing part of the aluminum plate through a bracket; the back pressure valve and the mixer are mutually fixed through bolts and located on the rear side of the battery module and fixed on a passenger car body through a support.

The better scheme in the scheme is as follows: the cooling system comprises a water pump, a deionization and filter two-in-one machine, an electronic three-way valve and a conductivity meter, wherein the water pump is positioned on the front side of the battery module and is directly fixed on the lower bearing part of the aluminum plate, and the deionization and filter and the electronic three-way valve are positioned on the lower layer of the front side of the battery module and are fixed on the humidifier; the conductivity meter is positioned under the water pump and fixed on the air compressor.

As a further scheme of the invention: in the cooling system, a cooling liquid special for the fuel cell is adopted.

Meanwhile, the hydrogen system comprises a hydrogen inlet electromagnetic valve, an anode pressure regulator, a gas-water separator, a circulating pump, a pressure release valve, a hydrogen discharge electromagnetic valve and a water discharge electromagnetic valve, wherein the hydrogen inlet electromagnetic valve is positioned at the rear side of the battery module and is fixed on the body of the passenger car through a bracket; the anode pressure regulator and the gas-water separator are both positioned on the middle layer at the rear side of the battery module and are fixed on the side wall of the aluminum plate through a bracket; the circulating pump is positioned on the middle layer of the rear side of the battery module and is fixed on the shell of the battery module through a transition plate; the pressure release valve is positioned on the left side of the battery module and is fixed on the shell of the battery module through a bracket; the hydrogen discharge electromagnetic valve and the water discharge electromagnetic valve are respectively fixed on a hydrogen discharge pipe and a water discharge pipe of the gas-water separator through bolts.

The invention has the beneficial effects that:

1. this passenger car fuel cell system arranges each spare part of fuel cell system with reasonable mode with the front deck of passenger car in, compromise under the condition that each circuit, water route, gas circuit rationally arranged for whole system arranges highly concentrated, makes each spare part easily dismantle and maintain again, all has better improvement to the heat dissipation of system, maintenance convenience and maintainability.

Drawings

Fig. 1 is a schematic front first isometric view of a fuel cell system for a passenger vehicle according to the present invention;

fig. 2 is a schematic diagram of a rear first isometric structure of a fuel cell system of a passenger vehicle according to the present invention;

fig. 3 is a schematic diagram of a rear second isometric structure of a fuel cell system of a passenger vehicle according to the present invention.

In the figure: 1-battery module, 2-aluminum plate, 3-DCDC, 4-FCCU, 5-air filter, 6-air flow meter, 7-air compressor, 8-intercooler, 9-humidifier, 10-bypass valve, 11-back pressure valve, 12-mixer, 13-water pump, 14-deionization and filter, 15-electronic three-way valve, 16-conductivity meter, 17-hydrogen inlet electromagnetic valve, 18-anode pressure regulator, 19-gas-water separator, 20-circulating pump, 21-pressure relief valve, 22-hydrogen discharge electromagnetic valve, 23-water discharge electromagnetic valve.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The utility model provides a passenger car fuel cell system, as shown in fig. 1-3, includes battery module 1, electrical system, air system, cooling system, hydrogen system and the key spare part of system, battery module 1 bottom outer wall is fixed with through the bolt and is used for the aluminum plate 2 with the automobile body coupling, the key spare part of system sets up in aluminum plate 2's below, electrical system, air system, cooling system, hydrogen system all are fixed in battery module 1 through the support on, and use battery module 1 to arrange as the center surrounding type.

As shown in fig. 1-3, the cell module 1 is a fuel cell module, which is an aluminum housing enclosing the fuel cell module, and the aluminum housing is provided with a plurality of interfaces for interfacing with an air system, a hydrogen system, a cooling system, and key components of the system.

1-3, the electrical system includes DCDC3, FCCU4, sensor modules, and high and low voltage wiring harnesses; the DCDC3 and the FCCU4 are located at the top of the battery module 1 and are directly connected with the upper cover of the battery module 1 through a support, the sensor module is arranged in an air system, a cooling system and a hydrogen system, high-voltage and low-voltage wiring harnesses are arranged around the battery module 1, and the DCDC3 is used for adjusting the voltage output by the fuel cell to a voltage platform required by the whole vehicle and ensuring the stability of the voltage output by the system; the FCCU4 is a controller of the entire fuel cell system, and monitors the fuel cell system and various components to ensure stable and reliable operation of the system, and the entire vehicle controller performs data exchange to ensure matching between the fuel cell system and the entire vehicle performance. Each sensor transmits data such as temperature, pressure and the like of each subsystem to the FCCU4 in real time, so that the FCCU4 processes the fed-back data and adjusts the operation conditions of the whole system and parts in real time. The high-voltage wire harness transmits high-voltage electricity output by the pile module to DCDC3 for voltage boosting and stabilizing, and the low-voltage wire harness transmits control signals and V low-voltage electricity to parts and FCCU4 so as to ensure that the FCCU4 monitors the parts in real time.

The air system comprises an air filter 5, an air flow meter 6, an air compressor 7, an intercooler 8, a humidifier 9, a bypass valve 10, a back pressure valve 11 and a mixer 12, wherein the air filter 5 is positioned on the top layer of the right side of the battery module 1 and fixed on the upper cover of the battery module 1 through a support, the air flow meter 6 is positioned on the middle layer of the rear side of the battery module 1 and fixed on the shell of the battery module 1 through a support, the air compressor 7 is positioned on the lower layer of the rear side of the battery module 1 and fixed on the lower bearing part of the aluminum plate 2 through a support, the intercooler 8 is positioned on the lower layer of the front side of the battery module 1 and directly fixed on the lower bearing part of the aluminum plate 2, and the humidifier 9 is positioned on the lower layer of the front side of the battery module 1 and fixed on the lower bearing part of the aluminum plate 2 through a support; the bypass valve 10 is positioned at the lower layer of the rear side of the battery module 1 and is fixed on the lower bearing part of the aluminum plate 2 through a bracket; the back pressure valve 11 and the mixer 12 are mutually fixed through bolts and are positioned at the rear side of the battery module 1 and fixed on a vehicle body of a passenger vehicle through a support, outside air is filtered by the air filter 5 and then is pressurized by the air flow meter 6 through the air compressor 7 to provide pressure meeting the working requirement of the electric pile, but the temperature rises sharply after air compression, so that the air is reduced to the temperature meeting the working requirement by the intercooler 8, and then the air humidity is increased through the humidifier 9, thereby meeting the working requirement of the electric pile in the aspects of pressure, temperature and humidity. As mentioned above, the air filter 5 is generally located in the front upper portion of the vehicle, facilitating the replacement of the filter cartridge. Because the air compressor 7 and the intercooler 8 are arranged in a manner of being attached to each other as much as possible due to space limitation, the humidifier 9 is arranged lower than the galvanic pile so as to prevent accumulated water at the outlet of the galvanic pile from flowing back to the galvanic pile. The backpressure valve 11 and the mixer 12 are integrated together to be used as a pile tail gas discharge port and arranged at a channel in a vehicle, and a rear connecting pipeline is directly discharged to the tail end of the vehicle. The bypass valve 10 functions as an intake bypass, discharging excess air into the mixer 12 and then into the atmosphere.

The cooling system comprises a water pump 13, a deionization and filter 14 two-in-one device, an electronic three-way valve 15 and a conductivity meter 16, wherein the water pump 13 is positioned on the front side of the battery module 1 and is directly fixed on the lower bearing part of the aluminum plate 2, and the deionization and filter 14 and the electronic three-way valve 15 are positioned on the lower layer of the front side of the battery module 1 and are fixed on a humidifier 9; the conductivity meter 16 is positioned right below the water pump 13 and fixed on the air compressor 7, the water pump 13 provides power, the power enters the galvanic pile through the deionization and filter 14, and the waterway outlet of the galvanic pile controls the switching of the waterway size circulation through the electronic three-way valve 15 so as to ensure the heat dissipation requirement. The conductivity meter 16 detects the conductivity of the water path to ensure the water quality requirement of the galvanic pile.

In the cooling system, a cooling liquid special for the fuel cell is adopted.

The hydrogen system comprises a hydrogen inlet electromagnetic valve, an anode pressure regulator 18, a gas-water separator 19, a circulating pump 20, a pressure release valve 21, a hydrogen discharge electromagnetic valve 22 and a water discharge electromagnetic valve 23, wherein the hydrogen inlet electromagnetic valve 17 is positioned at the rear side of the battery module 1 and is fixed on the body of the passenger car through a bracket; the anode pressure regulator 18 and the gas-water separator 19 are both positioned on the middle layer of the rear side of the battery module 1 and fixed on the side wall of the aluminum plate 2 through a bracket; the circulating pump 20 is positioned at the middle layer of the rear side of the battery module 1 and is fixed on the shell of the battery module 1 through a transition plate; the pressure release valve 21 is positioned on the left side of the battery module 1 and fixed on the shell of the battery module 1 through a bracket; the hydrogen discharge electromagnetic valve 22 and the water discharge electromagnetic valve 23 are respectively fixed on a hydrogen discharge pipe and a water discharge pipe of the gas-water separator 19 through bolts, and hydrogen is supplied by a hydrogen cylinder, and the hydrogen inlet pressure is adjusted to the working pressure required by the pile after passing through the hydrogen inlet electromagnetic valve 17 and the anode pressure regulator 18. The hydrogen outlet of the electric pile is connected with a gas-water separator 19 to separate hydrogen from water vapor, the separated hydrogen enters the electric pile again through a circulating pump 20 to react, the separated condensed water is discharged into the mixer 12 through a drain valve and then discharged into the atmosphere, and a hydrogen discharge solenoid valve 22 is opened to discharge impurity gas in the pipeline into the mixer 12 and then discharged into the atmosphere when the system is purged. The relief valve 21 functions as a safety valve and functions as an emergency relief valve when the hydrogen passage pressure is too high.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A fuel cell system for a passenger vehicle comprises a cell module (1), an electrical system, an air system, a cooling system, a hydrogen system and key system parts, it is characterized in that an aluminum plate (2) used for being connected with a vehicle body is fixed on the outer wall of the bottom of the battery module (1) through a bolt, the key parts of the system are arranged below the aluminum plate (2), the electric system, the air system, the cooling system and the hydrogen system are all fixed on the battery module (1) through a bracket, and is arranged in a surrounding way by taking the battery module (1) as a center, the hydrogen system comprises a hydrogen inlet electromagnetic valve, an anode pressure regulator (18), a gas-water separator (19), a circulating pump (20), a pressure release valve (21), a hydrogen discharge electromagnetic valve (22) and a water discharge electromagnetic valve (23), the hydrogen inlet electromagnetic valve (17) is positioned at the rear side of the battery module (1) and is fixed on the body of the passenger car through a bracket; the anode pressure regulator (18) and the gas-water separator (19) are both positioned on the middle layer of the rear side of the battery module (1) and fixed on the side wall of the aluminum plate (2) through a bracket; the circulating pump (20) is positioned at the middle layer of the rear side of the battery module (1) and is fixed on the shell of the battery module (1) through a transition plate; the pressure release valve (21) is positioned on the left side of the battery module (1) and is fixed on a shell of the battery module (1) through a bracket; the hydrogen discharge electromagnetic valve (22) and the water discharge electromagnetic valve (23) are respectively fixed on a hydrogen discharge pipe and a water discharge pipe of the gas-water separator (19) through bolts.

2. A passenger vehicle fuel cell system according to claim 1, characterized in that the cell module (1) is a fuel cell module, which is enclosed by an aluminum housing provided with a plurality of interfaces for interfacing with air systems, hydrogen systems, cooling systems and system critical components.

3. A passenger vehicle fuel cell system according to claim 1, wherein the electrical system comprises a DCDC (3), a FCCU (4), a sensor module and a high and low voltage harness; DCDC (3) and FCCU (4) are located battery module (1) top, and are connected with the upper cover of battery module (1) through the support is direct, and the sensor module is arranged in air system, cooling system and hydrogen system, and high-low pressure pencil is arranged around battery module (1).

4. A passenger car fuel cell system according to claim 1, wherein the air system comprises an air filter (5), an air flow meter (6), an air compressor (7), an intercooler (8), a humidifier (9), a bypass valve (10), a back pressure valve (11) and a mixer (12), the air filter (5) is located on the top right side of the battery module (1) and fixed to the upper cover of the battery module (1) through a bracket, the air flow meter (6) is located on the middle rear side of the battery module (1) and fixed to the housing of the battery module (1) through a bracket, the air compressor (7) is located on the lower rear side of the battery module (1) and fixed to the lower bearing part of the aluminum plate (2) through a bracket, the intercooler (8) is located on the lower front side of the battery module (1) and directly fixed to the lower bearing part of the aluminum plate (2), the humidifier (9) is positioned at the lower layer of the front side of the battery module (1) and is fixed on the lower bearing part of the aluminum plate (2) through a bracket; the bypass valve (10) is positioned at the lower layer of the rear side of the battery module (1) and is fixed on the lower bearing part of the aluminum plate (2) through a bracket; the back pressure valve (11) and the mixer (12) are mutually fixed through bolts and positioned on the rear side of the battery module (1) and fixed on the body of the passenger car through a support.

5. A passenger car fuel cell system according to claim 1, wherein the cooling system comprises a water pump (13), a deionization and filter (14), an electronic three-way valve (15) and a conductivity meter (16), the water pump (13) is located at the front side of the cell module (1) and directly fixed to the lower bearing part of the aluminum plate (2), and the deionization and filter (14) and the electronic three-way valve (15) are located at the front lower layer of the cell module (1) and fixed to a humidifier (9); the conductivity meter (16) is positioned under the water pump (13) and fixed on the air compressor (7).

6. A passenger vehicle fuel cell system according to claim 5, wherein a fuel cell specific coolant is used in the cooling system.