Fuel cell and vehicle

Abstract

The utility model provides a fuel cell and a vehicle, and relates to the technical field of vehicle engineering, the fuel cell comprises an air filter, a filter box, a gas transmission device and an electric pile; the filter box is used for storing liquid and is provided with a liquid phase area located at the bottom and a gas phase area located at the top. An air inlet pipe of the filter box extends into the liquid phase area, and the air filter is in fluid communication with the gas phase area through an air outlet pipe; the gas transmission device is mounted on the gas inlet pipe and / or the gas outlet pipe; an air cleaner is in fluid communication with the stack. According to the air filter, external air can be driven to sequentially flow through the liquid phase area and the gas phase area, so that dust particles in the air can be adsorbed and dissolved by liquid in the liquid phase area, the dust particles are prevented from entering the air filter to cause blockage, the service life of the air filter is prolonged, and the maintenance cost of the air filter is reduced; and stable performance of the fuel cell can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle engineering, in particular to a fuel cell and a vehicle. Background Art

[0002] When the fuel cell system is running for a long time, impurities in the air will cause the cathode catalyst activity to decrease, which will in turn damage the performance of the fuel cell stack, causing fuel cell stack attenuation and single low problems, resulting in reduced performance of the fuel cell system. Utility Model Content

[0003] The utility model aims to provide a fuel cell and a vehicle to alleviate the technical problem of reduced performance of the fuel cell system in the prior art.

[0004] In the first aspect, the air filter device provided by the utility model comprises: an air filter, a filter box, an air transmission device and a fuel cell stack;

[0005] The filter box is used to store liquid and has a liquid phase area at the bottom and a gas phase area at the top;

[0006] The air inlet pipe of the filter box extends into the liquid phase region, and the air filter is in fluid communication with the gas phase region via the air outlet pipe;

[0007] The gas delivery device is installed on the air inlet pipe and / or the air outlet pipe;

[0008] The air filter is in fluid communication with the fuel cell stack.

[0009] In combination with the first aspect, the utility model provides a first possible implementation of the first aspect, wherein the fuel cell further includes a one-way valve, an inlet of the one-way valve is connected to the gas phase fluid, and an outlet of the one-way valve is connected to the air filter fluid.

[0010] In combination with the first possible implementation of the first aspect, the utility model provides a second possible implementation of the first aspect, wherein the one-way valve is connected in parallel with a throttle valve.

[0011] In combination with the first aspect, the utility model provides a third possible implementation of the first aspect, wherein a pressure tank is installed between the air filter and the gas phase zone, and the air filter and the gas phase zone are respectively connected to the pressure tank fluid.

[0012] In combination with the third possible implementation of the first aspect, the utility model provides a fourth possible implementation of the first aspect, wherein the pressure tank is configured as a water storage container, and the top of the inner cavity of the water storage container is connected to the air filter fluid.

[0013] In combination with the third possible implementation of the first aspect, the utility model provides a fifth possible implementation of the first aspect, wherein the pressure resistance value of the pressure tank is greater than 1.2 atm.

[0014] In combination with the third possible implementation of the first aspect, the utility model provides a sixth possible implementation of the first aspect, wherein the pressure tank is installed with a pressure sensor.

[0015] In combination with the fifth possible implementation of the first aspect, the utility model provides a seventh possible implementation of the first aspect, wherein the gas transmission device and the pressure sensor are respectively connected to a controller.

[0016] In combination with the first aspect, the utility model provides a seventh possible implementation of the first aspect, wherein a cotton piece is provided in the liquid phase region of the filter box.

[0017] In a second aspect, the present invention provides a vehicle equipped with the fuel cell described in the first aspect.

[0018] The embodiments of the utility model bring the following beneficial effects: a filter box is used to store liquid, and has a liquid phase area at the bottom and a gas phase area at the top, the air inlet pipe of the filter box extends into the liquid phase area, the air filter is fluidly connected to the gas phase area via an air outlet pipe, and the air supply device is installed on the air inlet pipe and / or the air outlet pipe, which can drive the external air to flow through the liquid phase area and the gas phase area in sequence, so that the dust particles in the air can be adsorbed and dissolved by the liquid in the liquid phase area, thereby preventing the dust particles from entering the air filter and causing blockage, thereby extending the service life of the air filter, reducing the maintenance cost of the air filter, and ensuring the stability of the fuel cell performance.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of a fuel cell provided in an embodiment of the utility model.

[0022] Icons: 100 - air filter; 200 - filter box; 201 - liquid phase area; 202 - gas phase area; 210 - intake pipe; 220 - outlet pipe; 300 - gas transmission device; 400 - check valve; 500 - pressure tank; 600 - pressure sensor; 700 - battery stack; 800 - throttle valve. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used to describe the difference in names, and cannot be understood as indicating or implying relative importance. The physical quantities in the formula, if not separately marked, should be understood as basic quantities of the basic units of the International System of Units, or derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1 As shown, the air filtering device provided by the embodiment of the utility model includes: an air filter 100, a filter box 200, an air supply device 300 and a fuel cell stack 700; the filter box 200 is used to store liquid, and has a liquid phase area 201 located at the bottom and a gas phase area 202 located at the top; the air inlet pipe 210 of the filter box 200 extends into the liquid phase area 201, and the air filter 100 is fluidically connected with the gas phase area 202 via the air outlet pipe 220; the air supply device 300 is installed on the air inlet pipe 210 and / or the air outlet pipe 220; the air filter 100 is fluidically connected with the fuel cell stack 700.

[0027] Specifically, the liquid phase region 201 of the filter box 200 can store water or other substances that can dissolve and absorb SO2, NO x , H2S and other gases and dust solutions. The air delivery device 300 drives the external air to flow into the liquid phase area 201 through the air inlet pipe 210. The dust particles in the air can be dissolved and adsorbed by the liquid in the liquid phase area 201. Then the relatively clean air floats to the gas phase area 202 and flows into the air filter 100 through the air outlet pipe 220. This can prevent dust particles from entering the air filter 100 and causing blockage, thereby extending the service life of the air filter 100 and reducing the maintenance cost of the air filter 100. Before the air enters the air filter 100, SO2, NO x , H2S and other gases and dust can not only prevent the air filter 100 from being blocked, but also prevent the impurity gas from reducing the activity of the cathode catalyst of the fuel cell stack 700, thereby maintaining the stable performance of the fuel cell and reducing the maintenance cost of the air filter 100.

[0028] In an embodiment of the utility model, the fuel cell also includes a one-way valve 400, the inlet of the one-way valve 400 is connected to the fluid of the gas phase region 202, and the outlet of the one-way valve 400 is connected to the fluid of the air filter 100. The one-way valve 400 prevents the gas in the air filter 100 from flowing back to the gas phase region 202.

[0029] In addition, the one-way valve 400 may be connected in parallel with the throttle valve 800 , and the one-way valve 400 and the throttle valve 800 may be used in parallel to form a one-way throttle valve.

[0030] Furthermore, a pressure tank 500 is installed between the air filter 100 and the gas phase zone 202 . The air filter 100 and the gas phase zone 202 are respectively connected to the fluid of the pressure tank 500 . The pressure tank 500 can buffer air with a relatively high pressure, thereby increasing the intake pressure of the air filter 100 .

[0031] In an optional embodiment, the pressure tank 500 can be configured as a water storage container, and the top of the inner cavity of the water storage container is connected to the air filter 100 fluid. If the water in the filter box 200 flows out with the air flow, it can be stored in the water storage container, thereby preventing water from entering the air filter 100.

[0032] Preferably, the pressure resistance value of the pressure-resistant tank 500 is greater than 1.2 atm, so that the pressure-resistant tank 500 is sufficient to withstand the gas transmission pressure of the gas transmission device 300 .

[0033] Furthermore, the pressure tank 500 is installed with a pressure sensor 600 , and the internal air pressure of the pressure tank 500 can be detected by the pressure sensor 600 , so as to monitor and obtain the intake pressure of the air filter 100 .

[0034] Furthermore, the gas delivery device 300 and the pressure sensor 600 are respectively connected to the controller. When the pressure in the pressure tank 500 is greater than 1.2 times of the standard atmospheric pressure, the controller can control the gas delivery device 300 to stop working to prevent the air filter 100 from being damaged due to excessive intake pressure.

[0035] In this embodiment, the gas delivery device 300 includes a blower installed on the air inlet pipe 210 , and the external air is pressed into the liquid phase region 201 through the air inlet pipe 210 by the blower.

[0036] In an optional embodiment, a sponge or other cotton material is provided in the liquid phase region 201 of the filter box 200, and the liquid in the liquid phase region 201 can be absorbed by the cotton material to prevent the liquid from vibrating and splashing into the gas phase region 202. A barrier device can also be provided between the liquid phase region 201 and the gas phase region 202 to prevent the liquid from splashing into the gas phase region 202 due to vibration.

[0037] The vehicle provided by the embodiment of the utility model is equipped with the fuel cell described in the above-mentioned embodiment, wherein the air filter 100 can be used for the intake filtration of the fuel engine, and can also be used for the intake filtration of the stack 700 of the hydrogen fuel cell vehicle, thereby extending the service life of the air filter 100 and reducing the use cost of the vehicle.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A fuel cell, characterized in that: include: An air filter (100), a filter box (200), an air transmission device (300) and a battery stack (700); The filter box (200) is used to store liquid and has a liquid phase region (201) located at the bottom and a gas phase region (202) located at the top; The air inlet pipe (210) of the filter box (200) extends into the liquid phase region (201), and the air filter (100) is fluidically connected to the gas phase region (202) via the air outlet pipe (220); The gas delivery device (300) is installed on the gas inlet pipe (210) and / or the gas outlet pipe (220); The air filter (100) is in fluid communication with the fuel cell stack (700).

2. The fuel cell according to claim 1, characterized in that The fuel cell further comprises a one-way valve (400), an inlet of the one-way valve (400) being in fluid communication with the gas phase region (202), and an outlet of the one-way valve (400) being in fluid communication with the air filter (100).

3. The fuel cell according to claim 2, characterized in that The one-way valve (400) is connected in parallel with a throttle valve (800).

4. The fuel cell according to claim 1, characterized in that A pressure tank (500) is installed between the air filter (100) and the gas phase zone (202), and the air filter (100) and the gas phase zone (202) are respectively in fluid communication with the pressure tank (500).

5. The fuel cell according to claim 4, characterized in that The pressure-resistant tank (500) is configured as a water storage container, and the top of the inner cavity of the water storage container is in fluid communication with the air filter (100).

6. The fuel cell according to claim 4, characterized in that The pressure-resistant value of the pressure-resistant tank (500) is greater than 1.2 atm.

7. The fuel cell according to claim 4, characterized in that The pressure-resistant tank (500) is equipped with a pressure sensor (600).

8. The fuel cell according to claim 7, characterized in that The gas delivery device (300) and the pressure sensor (600) are respectively connected to a controller.

9. The fuel cell according to claim 1, characterized in that A cotton wool piece is provided in the liquid phase region (201) of the filter box (200).

10. A vehicle, characterized in that: The vehicle is equipped with the fuel cell according to any one of claims 1 to 9.

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