CN219806710U - Hydrogen fuel cell system and automobile - Google Patents

Abstract

This application provides a hydrogen fuel cell system and automobile. The hydrogen fuel cell system includes an air compression module, an air treatment module, a battery assembly module and a conversion output module that are dispersed along the horizontal direction, wherein the air compression module is connected to the air treatment module, and the air treatment module is connected to The battery assembly module is connected, the battery assembly module is connected with the conversion output module, and the conversion output module is connected with the air compression module. This application solves the problem that the integrated hydrogen fuel cell system is difficult to arrange and inconvenient to maintain in compact vehicles. It can be flexibly arranged in the front cabin or under the floor of the vehicle according to the space, which facilitates system assembly, parts replacement and maintenance. maintain.

Description

Hydrogen fuel cell systems and vehicles

Technical field

This application relates to the field of new energy technology, and in particular to a hydrogen fuel cell system and automobile.

Background technique

With the advantages of high efficiency, zero emissions, and low noise, hydrogen fuel cells have become an important tool for my country's energy structure reform, energy conservation and emission reduction, and automobile industry upgrading, and will become an important solution for the sustainable development of my country's cities and economy. At present, hydrogen fuel cell systems are mostly integrated into the vehicle body. Integrated layout is more difficult for passenger cars with compact space design, and it is difficult to meet diverse layout needs. In addition, the installation and maintenance process of integrated hydrogen fuel cell systems are also cumbersome and often inconvenient during use.

Therefore, it is necessary to provide an improved hydrogen fuel cell system to solve the above problems.

Utility model content

This application provides a hydrogen fuel cell system and automobile that are distributed and easy to maintain.

The present application provides a hydrogen fuel cell system, including an air compression module, an air treatment module, a battery assembly module and a conversion output module that are dispersedly arranged in a horizontal direction, wherein the air compression module is connected to the air treatment module, The air treatment module is connected to the battery assembly module, the battery assembly module is connected to the conversion output module, and the conversion output module is connected to the air compression module.

Further, the horizontal direction includes a first horizontal direction, the air compression module and the air treatment module are located on one side of the battery assembly module along the first horizontal direction, and the conversion output module is located on the The other side of the battery assembly module is along the first horizontal direction.

Further, the air compression module includes an air compressor, the air treatment module includes an intercooler and a humidifier, the air compressor is connected to the intercooler and the conversion output module respectively, and the air treatment module includes an intercooler and a humidifier. The humidifier is connected to the intercooler and the battery assembly module respectively;

The horizontal direction includes a second horizontal direction, the air compressor, the intercooler and the humidifier are arranged along the second horizontal direction, and the humidifier is located between the air compressor and the between the intercoolers; the second horizontal direction is not in the same direction as the first horizontal direction.

Further, the air compressor is provided with an air inlet pipe, and the humidifier is provided with an exhaust gas discharge pipe.

Further, the battery assembly module includes a stack assembly and an ejector connected to the stack assembly, and the stack assembly is connected to the air treatment module and the conversion output module respectively;

The stack assembly and the ejector are arranged along the first horizontal direction, and the ejector is close to a side of the stack assembly away from the conversion output module.

Further, the ejector is provided with a hydrogen air inlet pipe, and the hydrogen air inlet pipe is connected to the hydrogen storage device of the automobile.

Further, the conversion output module includes a DCDC converter and an air compressor controller, a high-pressure water pump, and a PTC heater respectively connected to the DCDC converter. The DCDC converter is connected to the battery assembly module, so The air compressor controller is connected to the air compression module;

The air compressor controller and the DCDC converter are arranged in a third direction perpendicular to the horizontal direction; the horizontal direction includes a second horizontal direction, and the high-pressure water pump and the PTC heater are located in the The DCDC converter is along the same side or both sides of a second horizontal direction that is not in the same direction as the first horizontal direction.

Further, the high-pressure water pump and the PTC heater are located on the same side of the DCDC converter and are arranged along the first horizontal direction;

The high-pressure water pump is arranged closer to the battery assembly module than the PTC heater. The high-pressure water pump is close to one side of the DCDC converter along the second horizontal direction. The PTC heater is connected to the battery assembly module. The above-mentioned high-pressure water pump interval settings.

Further, the DCDC converter is provided with a high-voltage output line.

Further, the air compression module, the air treatment module, the battery assembly module and the conversion output module are all arranged at intervals, and the distance between the battery assembly module and the conversion output module is Less than the distance between the battery assembly module and the air treatment module.

The present application also provides an automobile, including the hydrogen fuel cell system as described in any one of the above items.

Further, the automobile includes a front cabin and a floor, and the hydrogen fuel cell system is installed on the front cabin or the floor.

Compared with the existing technology, the beneficial effect of this application is to solve the problem that the integrated hydrogen fuel cell system is difficult to arrange and inconvenient to maintain in compact vehicles. It can be flexibly arranged in the front cabin or floor of the car according to the size of the space. down to facilitate system assembly, parts replacement, and repair and maintenance.

It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit this specification.

Description of the drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and together with the description, serve to explain the principles of the specification.

Figure 1 is a schematic structural diagram of the hydrogen fuel cell system of the present invention.

Figure 2 is a connection distribution diagram between various structures of the hydrogen fuel cell system of the present invention.

Explanation of reference numbers: air compression module, 10; air compressor, 11; air treatment module, 20; intercooler, 21; humidifier, 22; battery assembly module, 30; stack assembly, 31; lead Emitter, 32; conversion output module, 40; DCDC converter, 41; air compressor controller, 42; high-pressure water pump, 43; PTC heater, 44.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Rather, they are merely examples of apparatus and methods consistent with certain aspects of this specification, as detailed in the appended claims.

The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the specification. As used in this specification and the appended claims, the singular forms "a," "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this specification to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this specification, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to determining."

Next, the embodiments of this specification will be described in detail.

As shown in Figure 1, this application provides a hydrogen fuel cell system that can be used in vehicles such as automobiles. The hydrogen fuel cell system includes: an air compression module 10, an air treatment module 20, a battery assembly module 30 and a conversion output module 40 that are dispersed along the horizontal direction. The air compression module 10 is connected to the air treatment module 20, and the air treatment module 20 is connected to the battery assembly module 30, the battery assembly module 30 is connected to the conversion output module 40, and the conversion output module 40 is connected to the air compression module 10.

Optionally, the horizontal direction may refer to any horizontal direction. The plane on which the above four modules are located can be a horizontal plane. Considering the different heights and volumes of different modules, it can also be designed as a slope or uneven structure, which does not affect the horizontal arrangement. This application does not limit this. It can be understood that in this application, the air compression module 10, the air treatment module 20, the battery assembly module 30 and the conversion output module 40 are independently arranged and are scattered in the horizontal direction. Compared with the integrated arrangement in the related art, And the design method of stacking in the vertical direction solves the problem that the integrated hydrogen fuel cell system is difficult to arrange and inconvenient to repair in compact vehicles. It can be flexibly arranged in the front cabin or under the floor of the car according to the size of the space, which is convenient for System assembly, parts replacement and repair and maintenance.

As shown in Figure 2, in some optional implementations, the air compression module 10, the air treatment module 20, the battery assembly module 30 and the conversion output module 40 are all arranged at intervals, and the battery assembly module 30 and the conversion output module are spaced apart from each other. The distance between the modules 40 is smaller than the distance between the battery assembly module 30 and the air treatment module 20 . The horizontal direction includes a first horizontal direction. The air compression module 10 and the air treatment module 20 are located on one side of the battery assembly module 30 along the first horizontal direction. The conversion output module 40 is located on one side of the battery assembly module 30 along the first horizontal direction. The other side. Such an arrangement allows the gas pipelines and high-voltage lines to be located on both sides of the battery assembly module 30 along the first horizontal direction, which facilitates disassembly, assembly and cleaning, and facilitates maintenance personnel to identify fault locations.

As shown in FIGS. 1 to 2 , in some optional implementations, the air compression module 10 includes an air compressor 11 , and the air treatment module 20 includes an intercooler 21 and a humidifier 22 . The air compressor 11 is connected to the intercooler 21 and the conversion output module 40 respectively, and the humidifier 22 is connected to the intercooler 21 and the battery assembly module 30 respectively. The horizontal direction includes a second horizontal direction. The air compressor 11, the intercooler 21 and the humidifier 22 are arranged at a distance along the second horizontal direction. The humidifier 22 is located between the air compressor 11 and the intercooler 21. between. The second horizontal direction is not in the same direction as the first horizontal direction. This arrangement brings the humidifier 22 closer to the battery assembly module 30, thereby increasing the gas transmission rate. Optionally, the second horizontal direction is perpendicular to the first horizontal direction, making the layout more neat and beautiful.

The air compression module 10 and the air treatment module 20 jointly provide the battery assembly module 30 with oxygen required for electrochemical reactions. The air compressor 11 is used to absorb external air, and is provided with an air inlet pipe. The air enters from the air inlet pipe, is compressed by the air compressor 11, and then sent to the intercooler 21. Optionally, in order to prevent dust and other debris in the air from affecting the air compressor 11, an air filter may be provided behind the air inlet pipe of the air compressor 11.

The intercooler 21 is used to cool the air discharged from the air compressor 11 . The temperature of the gas output by the air compressor 11 is very high, and the intercooler 21 is required to cool the gas to adapt to the working environment in the battery assembly module 30 . The electrochemical reaction can only have high proton conductivity when it is humid, so the humidifier 22 is required to humidify the gas cooled by the intercooler 21 and transport it to the battery assembly module 30 .

The humidifier 22 is also used to process the exhaust gas generated after the electrochemical reaction of the battery assembly module 30, and is provided with an exhaust gas discharge pipe. The humidifier 22 humidifying the exhaust gas can on the one hand dilute the impurities in the exhaust gas and reduce the impact on the hydrogen fuel cell. Corrosion and damage to the system, on the other hand, the water vapor in the exhaust gas can be recovered to increase the output power of the hydrogen fuel cell system.

In some optional embodiments, the battery assembly module 30 includes a stack assembly 31 and an ejector 32 , and the ejector 32 is connected to the stack assembly 31 . The stack assembly 31 is connected to the humidifier 22 and the conversion output module 40 of the air treatment module 20 respectively. The stack assembly 31 and the ejector 32 are arranged along the first horizontal direction, and the ejector 32 is close to the side of the stack assembly 31 away from the conversion output module 40 . This arrangement allows the hydrogen pipe and the air pipe to be located on the same side of the stack assembly 31. At the same time, the hydrogen pipe and the air pipe are arranged closely together so that the hydrogen gas entering the ejector 32 can be quickly sent to the interior of the stack assembly 31 to speed up the reaction rate.

The stack assembly 31 is the core component of the hydrogen fuel cell system and is located in the middle of the hydrogen fuel cell system. The stack assembly 31 is composed of multiple single cells stacked in series. Each single cell includes two bipolar plates, two catalytic layers, a proton exchange membrane and two carbon papers. The stack assembly 31 is used to perform an electrochemical reaction on the air processed by the air treatment module 20 and the hydrogen ejected through the ejector 32, and directly convert the chemical energy of hydrogen and oxygen into electrical energy, thereby realizing various functions of the car. Component power supply.

The ejector 32 includes a hydrogen air inlet pipe, a low-pressure air inlet pipe and a nozzle port. The hydrogen air inlet pipe is connected to the hydrogen storage device of the automobile. The low-pressure air inlet pipe and the nozzle port are connected to the stack assembly 31 respectively. High-pressure hydrogen enters the ejector 32 from the hydrogen gas inlet pipe, and is ejected at a high speed at the nozzle opening. The pressure difference causes unreacted hydrogen in the stack assembly 31 to be sucked into the ejector 32 from the low-pressure gas inlet pipe. The high-pressure hydrogen gas entering through the hydrogen gas inlet pipe and the low-pressure hydrogen gas ejected back through the low-pressure gas inlet pipe are mixed in the ejector 32 and then enter the stack assembly 31 .

It can be understood that in the hydrogen fuel cell system of the present application, the air compressor 11 of the air compression module 10 and the intercooler 21 of the air treatment module 20 can be connected through an air pipeline. The intercooler 21 and the humidifier 22 of the air treatment module 20 can be connected through an air pipeline, and the humidifier 22 and the stack assembly 31 of the battery assembly module 30 can be connected through an air pipeline.

The complete air delivery process is that the air enters the air compressor 11 from the air inlet pipe, is compressed by the air compressor 11, and then sent to the intercooler 21. The intercooler 21 cools the gas, and the humidifier 22 humidifies the gas cooled by the intercooler 21 and transports it to the stack assembly 31 of the battery assembly module 30 . The exhaust gas discharged from the stack assembly 31 is processed by the humidifier 22 and then discharged from the exhaust gas discharge pipe.

In some optional implementations, the conversion output module 40 includes a DCDC converter 41, an air compressor controller 42, a high-pressure water pump 43, and a PTC heater 44, where the DCDC converter 41 is connected to the air compressor controller 42, high-pressure water pump 44, and the like. The water pump 43 and the PTC heater 44 are connected. The DCDC converter 41 is connected to the stack assembly 31 of the battery assembly module 30 , and the air compressor controller 42 is connected to the air compressor 11 of the air compression module 10 .

It can be understood that in the hydrogen fuel cell system of the present application, the stack assembly 31 of the battery assembly module 30 and the DCDC converter 41 of the conversion output module 40 are electrically connected. The DCDC converter 41, the air compressor controller 42, the high-pressure water pump 43 and the PTC heater 44 are all electrically connected. The air compressor controller 42 is electrically connected to the air compressor 11 of the air compression module 10 .

The air compressor controller 42 and the DCDC converter 41 are arranged along a third direction perpendicular to the horizontal direction. Optionally, the third direction may refer to the height direction of the vehicle body. The horizontal direction includes a second horizontal direction. The high-pressure water pump 43 and the PTC heater 44 are located on the same side or both sides of the DCDC converter 41 along the second horizontal direction. The second horizontal direction is not in the same direction as the first horizontal direction. This arrangement is more flexible. If the car space is irregular, it will be placed on both sides. If the car space is tight and regular, it will be placed on one side. Optionally, the second horizontal direction is perpendicular to the first horizontal direction, making the layout more neat and beautiful.

Optionally, in this embodiment, the high-pressure water pump 43 and the PTC heater 44 are located on the same side of the DCDC converter 41 along the second horizontal direction, and are arranged along the first horizontal direction. The high-pressure water pump 43 is disposed closer to the battery assembly module 30 than the PTC heater 44 . The high-pressure water pump 43 is close to one side of the DCDC converter 41 along the second horizontal direction. The PTC heater 44 is spaced apart from the high-pressure water pump 43 . This arrangement makes the layout of the conversion output module 40 more compact in space and better meets the design requirements of compact vehicles.

The DCDC converter 41 is used to convert the high-voltage direct current output by the stack assembly 31 into alternating current, change the voltage through the transformer, and then convert it into an adjustable direct current power output. The output of the stack assembly 31 alone fluctuates greatly, making it difficult to directly match the controller of the electric components, and cannot directly store energy in the battery. Therefore, the DCDC converter 41 and the stack assembly 31 are required to jointly provide external power supply. The DCDC converter 41 is provided with a high-voltage output line to form a high-voltage output line to supply power to electrical appliances outside the hydrogen fuel cell system.

The air compressor controller 42 is supported by the power delivered by the DCDC converter 41 and is used to control and protect the air compressor 11 . The high-pressure water pump 43 is supported by the power delivered by the DCDC converter 41 and is used to deliver water required for the electrochemical reaction of the battery assembly module 30 into the stack assembly 31 . The PTC heater 44 is supported by the power delivered by the DCDC converter 41 and is used to heat and control the temperature of the gas in the stack assembly 31 to meet the ambient temperature range required for the normal electrochemical reaction.

This application solves the problem that the integrated hydrogen fuel cell system is difficult to arrange and inconvenient to maintain in compact vehicles. It can be flexibly arranged in the front cabin or under the floor of the car according to the size of the space, maximizing the use of space. The decentralized arrangement also ensures smooth pipeline arrangement between various structures and avoids stacking of modules, which facilitates system assembly, parts replacement, and repair and maintenance.

This application also provides an automobile, including the hydrogen fuel cell system described in the above embodiments and implementation modes. The internal layout of a car equipped with a hydrogen fuel cell system is more flexible, environmentally friendly and low-noise, and the driving process can increase speed quickly and have a high safety factor.

In some optional embodiments, the automobile includes a front cabin and a floor, and the hydrogen fuel cell system is installed in the front cabin or the floor. The space in the front cabin of the car is mostly ample, which can provide sufficient installation space and arrangement for the hydrogen fuel cell system, and at the same time balance the center of gravity of the car. Installing it on the car floor can provide better balance and stability, and can also reduce noise and vibration in the car and improve ride comfort.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application in any form. Although the present application has disclosed the above in preferred embodiments, it is not intended to limit the present application. Anyone familiar with the technology in this field will Personnel, without departing from the scope of the technical solution of the present application, may use the technical content disclosed above to make some changes or modifications to equivalent implementations with equivalent changes. However, any content that does not depart from the technical solution of the present application shall be based on the present Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the application still fall within the scope of the technical solution of the application.

Claims (12)

1. A hydrogen fuel cell system, characterized in that it includes: an air compression module, an air treatment module, a battery assembly module and a conversion output module dispersedly arranged in a horizontal direction, wherein the air compression module and the air The processing module is connected, the air processing module is connected with the battery assembly module, the battery assembly module is connected with the conversion output module, and the conversion output module is connected with the air compression module. 2. The hydrogen fuel cell system according to claim 1, wherein the horizontal direction includes a first horizontal direction, and the air compression module and the air treatment module are located along the first horizontal direction of the battery assembly module. On one side of a horizontal direction, the conversion output module is located on the other side of the battery assembly module along the first horizontal direction. 3. The hydrogen fuel cell system according to claim 2, wherein the air compression module includes an air compressor, the air treatment module includes an intercooler and a humidifier, and the air compressor is connected to the air compressor respectively. The intercooler is connected to the conversion output module, and the humidifier is connected to the intercooler and the battery assembly module respectively; The horizontal direction includes a second horizontal direction, the air compressor, the intercooler and the humidifier are arranged along the second horizontal direction, and the humidifier is located between the air compressor and the between the intercoolers; the second horizontal direction is not in the same direction as the first horizontal direction. 4. The hydrogen fuel cell system according to claim 3, wherein the air compressor is provided with an air inlet pipe, and the humidifier is provided with an exhaust gas discharge pipe. 5. The hydrogen fuel cell system according to claim 2, wherein the battery assembly module includes a stack assembly and an ejector connected to the stack assembly, and the stack assembly respectively Connected to the air treatment module and the conversion output module; The stack assembly and the ejector are arranged along the first horizontal direction, and the ejector is close to a side of the stack assembly away from the conversion output module. 6. The hydrogen fuel cell system according to claim 5, wherein the ejector is provided with a hydrogen air inlet pipe, and the hydrogen air inlet pipe is connected to the hydrogen storage device of the automobile. 7. The hydrogen fuel cell system according to claim 2, wherein the conversion output module includes a DCDC converter and an air compressor controller, a high-pressure water pump, and a PTC heater respectively connected to the DCDC converter. The DCDC converter is connected to the battery assembly module, and the air compressor controller is connected to the air compression module; The air compressor controller and the DCDC converter are arranged in a third direction perpendicular to the horizontal direction; the horizontal direction includes a second horizontal direction, and the high-pressure water pump and the PTC heater are located in the The DCDC converter is along the same side or both sides of the second horizontal direction, and the second horizontal direction is not in the same direction as the first horizontal direction. 8. The hydrogen fuel cell system according to claim 7, wherein the high-pressure water pump and the PTC heater are located on the same side of the DCDC converter and are arranged along the first horizontal direction; The high-pressure water pump is arranged closer to the battery assembly module than the PTC heater. The high-pressure water pump is close to one side of the DCDC converter along the second horizontal direction. The PTC heater is connected to the battery assembly module. The above-mentioned high-pressure water pump interval settings. 9. The hydrogen fuel cell system according to claim 7, wherein the DCDC converter is provided with a high-voltage output line. 10. The hydrogen fuel cell system according to claim 1, wherein the air compression module, the air treatment module, the battery assembly module and the conversion output module are all arranged at intervals, so The distance between the battery assembly module and the conversion output module is smaller than the distance between the battery assembly module and the air treatment module. 11. An automobile, characterized by comprising the hydrogen fuel cell system according to any one of claims 1-10. 12. The automobile according to claim 11, wherein the automobile includes a front cabin and a floor, and the hydrogen fuel cell system is installed in the front cabin or the floor.