CN116272148A - A hydrogen fuel cell vehicle air filter life extension device - Google Patents

Abstract

The invention discloses a device for extending the life of an air filter for a hydrogen fuel cell vehicle, which comprises an air filter, an air intake pipe, a rotary sealing assembly, and an actuator. One end of the air filter is provided with an air inlet, and the other end is provided with an exhaust Air port, one end of the air intake pipe is connected to the air intake port, and the other end is provided with a suction port. The rotary sealing assembly is located in the suction port to prevent or allow external air to enter the air filter. The actuator is installed on the suction port. One side of the outer wall of the mouth is used to drive the rotary seal assembly to open or close. In the present invention, by setting a rotary sealing assembly, when the hydrogen fuel cell vehicle is not in use, the filter element of the air filter is completely isolated from the atmosphere, so as to protect the filter element from absorbing harmful gases in the atmospheric environment, maintain its adsorption capacity, and effectively prolong the life of the air filter. the service life of the filter element.

Description

A hydrogen fuel cell vehicle air filter life extension device

technical field

The invention relates to the technical field of air filtering devices, in particular to an air filter life extension device for hydrogen fuel cell vehicles.

Background technique

Hydrogen fuel cell vehicle is a vehicle with low-temperature chemical reaction between hydrogen and oxygen through precious metal catalysis, and releases electric energy. As harmful gases such as carbon monoxide, sulfur dioxide, nitrogen dioxide, methane, and ammonia in the air enter the hydrogen fuel cell When the reactor is running, it will react with the noble metal catalyst, which will cause the catalyst to fail, bring irreversible damage to the hydrogen fuel cell reactor, and continuously reduce its output power.

At present, hydrogen fuel cell vehicles use the filter element in the air filter to filter harmful gases. Once the filter element is saturated, it means that the filter element will fail and cannot be used. It needs to be replaced with a new filter element. The cost is higher than that of traditional car air filters. out a lot.

The filter element installed in the air filter of the car, because the intake pipe is connected to the atmospheric environment, when the hydrogen fuel cell stack is not running, it also absorbs harmful gases in the air. As a means of transportation, the car is especially It is a family car, and the daily use time is relatively short, and most of the time it is in a stopped state. At this time, the filter element on the car is still slowly absorbing harmful gases in the air, resulting in a car with no mileage or less mileage. The filter element will also gradually fail, bringing hidden dangers and inconvenience to car owners.

Therefore, the applicant proposes a device for extending the life of an air filter for a hydrogen fuel cell vehicle.

Contents of the invention

Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a device for extending the life of an air filter for a hydrogen fuel cell vehicle.

In order to achieve the above object, the present invention adopts the following technical solutions:

A device for extending the life of an air filter for a hydrogen fuel cell vehicle, comprising:

an air filter having an air inlet at one end and an air outlet at the other end;

An air intake pipe, one end of which communicates with the air intake, and the other end is provided with an air intake;

a rotary seal assembly, located within the suction port, for preventing or allowing outside air to enter the air filter;

The actuator, installed on the side of the outer wall of the suction port, is used to drive the rotary seal assembly to open or close.

Further, the rotary seal assembly includes an eccentric rotating shaft that is rotatably connected to both sides of the inner wall of the suction port, a baffle is provided on the eccentric rotating shaft, a sealing part is provided on one side of the baffle, and the sealing part A sealing structure can be formed with the sealing surface of the housing in the suction port.

Further, the inner bottom of the suction port is provided with a first accommodation chamber, the eccentric rotating shaft is located in the first accommodation chamber, and the baffle plate and the sealing part can just be put into the first accommodation chamber.

Further, the sealing part includes a first sealing part connected with the baffle and a second sealing part located on the outer periphery of the first sealing part, and the second sealing part is inclined toward the sealing surface of the housing along the outer periphery of the first sealing part, In addition, the second sealing portion can be squeezed and deformed after being in contact with the sealing surface of the casing to form a sealing structure.

Further, the first sealing part is adapted to the shape of the sealing surface of the casing, and the thickness of the second sealing part gradually decreases along the outer periphery of the first sealing part toward the sealing surface of the casing.

Compared with the prior art, the present invention provides a hydrogen fuel cell vehicle air filter life extension device, which has the following beneficial effects:

In the present invention, through the mutual cooperation of the actuator and the rotary seal assembly, when the hydrogen fuel cell vehicle starts, the actuator receives the signal from the controller, and the actuator drives the rotary seal assembly to open, thereby opening the suction port and making the intake pipe Unblocked, allowing external air to enter the air filter to provide enough air for the hydrogen fuel cell electric drive; when the hydrogen fuel cell stack stops working, after the actuator receives the signal from the controller, the reverse drive rotary seal assembly is closed , so as to close the suction port, prevent external air from entering the air filter, realize the complete isolation of the intake pipe from the atmosphere, protect the filter element from absorbing harmful gases in the atmospheric environment, maintain its adsorption capacity, and effectively extend the life of the filter element Service life, when the car is started next time, the rotary seal assembly is driven by the actuator to open again to provide sufficient air for the hydrogen fuel cell stack.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic view of the internal structure of the air inlet of the present invention;

Fig. 3 is a structural schematic diagram of one direction of the rotary seal assembly of the present invention;

Fig. 4 is a schematic diagram of the internal structure of the rotary seal assembly of the present invention in another direction.

Marks in the figure: 1, air filter; 2, air inlet; 3, exhaust port; 4, air intake pipe; 5, suction port; 6, rotary seal assembly; 61, eccentric rotating shaft; 63, the sealing part; 631, the first sealing part; 632, the second sealing part; 64, the casing sealing surface; 7, the actuator; 8, the actuator mounting frame; 9, the controller.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the records of the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art. Conventional means, machinery, parts and equipment all adopt conventional models in the prior art, plus circuit connections adopt conventional connection methods in the prior art, and will not be described in detail here.

In describing the present invention, it should be noted that the terms "centre", "upper", "lower", "left", "right", "longitudinal", "horizontal", "inner", "outer" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be configured in a specific orientation. and operation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

It should be noted that, unless otherwise clearly stipulated 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 an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

An embodiment of the present invention provides an air filter life extension device for a hydrogen fuel cell vehicle. Referring to FIG.

Wherein, one end of the air filter 1 is provided with an air inlet 2, and the other end is provided with an air outlet 3, and one end of the air inlet pipe 4 communicates with the air inlet 2, and the other end is provided with an air inlet 5, and the rotary sealing assembly 6 is located in the suction port 5, used to prevent or allow outside air to enter the air filter 1, the actuator 7 is installed on the side of the outer wall of the suction port 5, used to drive the rotary seal assembly 6 to open or close, and also includes a controller 9. It is used to control the start and stop of the actuator 7. The controller 9 is an ECU module, which is a prior art, and will not be described in detail here. The controller 9 is electrically connected to the actuator 7.

Specifically, the actuator 7 is a motor, which is a prior art, and will not be repeated here. An actuator mounting frame 8 is provided on one side of the outer wall of the suction port 5, and the actuator 7 is installed on the actuator mounting frame 8. The output end of the actuator 7 is connected with the rotary seal assembly 6 .

2 to 4, in this embodiment, the rotary seal assembly 6 includes an eccentric rotating shaft 61 that is rotationally connected to both sides of the inner wall of the suction port 5, and a baffle 62 is provided on the eccentric rotating shaft 61, so that One side of the baffle plate 62 is provided with a sealing portion 63, the sealing portion 63 can form a sealing structure with the housing sealing surface 64 in the suction port 5, so as to realize the complete isolation of the intake pipe 4 from the atmosphere, and protect the filter element from Adsorb harmful gases in the atmosphere, maintain its adsorption capacity, and effectively prolong the service life of the filter element.

Specifically, one end of the eccentric rotating shaft 61 passes through the side wall of the suction port 5 and is connected to the output end of the actuator 7 , and the eccentric rotating shaft 61 is arranged perpendicular to the air intake direction.

Wherein, referring to FIG. 2 to FIG. 4 , in this embodiment, the inner bottom of the suction port 5 is provided with a first accommodating cavity 21, the eccentric rotating shaft 61 is located in the first accommodating cavity 21, and the baffle plate 62 and The sealing portion 63 can just be put into the first receiving cavity 21 .

By setting the first accommodation chamber 21, when the hydrogen fuel cell vehicle is in use, the eccentric rotating shaft 61 is driven to rotate through the actuator 7, and then the baffle 62 and the sealing part 63 are driven to rotate, and the baffle 62 and the sealing part 63 are placed in the first In the accommodating cavity 21 , the baffle plate 62 and the sealing portion 63 are prevented from blocking the air entering the air inlet 5 , so that sufficient air cannot be provided for the electric propulsion of the hydrogen fuel cell.

3 and 4, in this embodiment, the sealing portion 63 includes a first sealing portion 631 connected to the baffle 62 and a second sealing portion 632 located on the outer periphery of the first sealing portion 631, the second sealing portion The portion 632 is inclined toward the housing sealing surface 64 along the outer periphery of the first sealing portion 631 , and the second sealing portion 632 can be squeezed and deformed after contacting the housing sealing surface 64 to form a sealing structure.

The sealing part 63 is made of soft rubber material, and the second sealing part 632 is slightly squeezed and deformed after being in contact with the sealing surface 64 of the housing, so that a complete seal between the second sealing part 632 and the sealing surface 64 of the housing can be realized, and the sealing can be improved. The effect is to prevent external air from entering the air filter 1, realize the complete isolation of the intake pipe 4 from the atmosphere, protect the filter element from absorbing harmful gases in the atmospheric environment, maintain its adsorption capacity, and effectively prolong the service life of the filter element.

Referring to FIG. 4 , in this embodiment, the first sealing portion 631 is adapted to the shape of the housing sealing surface 64 , and the second sealing portion 632 faces toward the sealing surface 64 of the housing along the outer periphery of the first sealing portion 631 . The thickness gradually decreases.

The shape of the first sealing portion 631 can be rectangular, circular or elliptical, and the longitudinal section of the sealing portion 63 is in the shape of a suction cup.

Working principle: when the hydrogen fuel cell vehicle is started, the actuator 7 receives the signal from the controller 9, and the actuator 7 drives the eccentric rotating shaft 61 to rotate, and then drives the baffle 62 and the sealing part 63 to rotate, and the baffle 62 and the sealing part The part 63 is put into the first accommodation chamber 21, thereby opening the suction port 5, making the air intake pipe 4 unblocked, allowing the external air to enter the air filter 1, and providing enough air for the electric drive of the hydrogen fuel cell; when the hydrogen fuel cell When the battery stack stops working, after the actuator 7 receives the signal from the controller 9, the actuator 7 reversely drives the eccentric rotating shaft 61 to rotate, and then drives the baffle 62 and the sealing part 63 to rotate, and the second sealing part 632 and the suction The housing sealing surface 64 in the air port 5 forms a sealing structure, thereby closing the air inlet 5, preventing external air from entering the air filter 1, realizing complete isolation of the air intake pipe 4 from the atmosphere, and protecting the filter element from absorbing the atmospheric environment Harmful gases in the air, maintain its adsorption capacity, and effectively prolong the service life of the filter element. When the car is started next time, the rotary seal assembly 6 will be opened again under the drive of the actuator 7 to provide sufficient power for the hydrogen fuel cell stack. air.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

The above examples are only used to illustrate the technical solution of the present invention, but not to limit the protection scope of the invention. Apparently, the described embodiments are only some, not all, embodiments of the present invention. Based on these embodiments, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above-mentioned embodiments, those skilled in the art can still combine, add, delete, or make other adjustments to the features in the various embodiments of the present invention according to the situation without any conflicts. Thereby, other technical solutions that are different and do not deviate from the conception of the present invention in essence are obtained, and these technical solutions also belong to the protection scope of the present invention.

Claims (5)

1. A hydrogen fuel cell vehicle air filter life extension device, characterized in that it comprises: An air filter (1), one end of which is provided with an air inlet (2), and the other end is provided with an air outlet (3); An air intake duct (4), one end of which communicates with the air intake (2), and the other end is provided with an air intake (5); A rotary seal assembly (6), located in the suction port (5), is used to prevent or allow external air to enter the air filter (1); The actuator (7) is installed on one side of the outer wall of the suction port (5), and is used to drive the rotary seal assembly (6) to open or close. 2. The hydrogen fuel cell vehicle air filter life extension device according to claim 1, characterized in that, the rotary seal assembly (6) includes an eccentric rotary shaft that is rotationally connected to both sides of the inner wall of the suction port (5) (61), the eccentric rotating shaft (61) is provided with a baffle (62), and one side of the baffle (62) is provided with a sealing part (63), and the sealing part (63) can be connected with the suction The housing sealing surface (64) inside the port (5) forms a sealing structure. 3. The device for extending the life of an air filter for a hydrogen fuel cell vehicle according to claim 2, characterized in that a first housing cavity (21) is provided at the inner bottom of the air inlet (5), and the eccentric rotating shaft (61) is located in the first accommodating chamber (21), and the baffle (62) and the sealing part (63) can just be put into the first accommodating chamber (21). 4. The hydrogen fuel cell vehicle air filter life extension device according to claim 3, characterized in that, the sealing portion (63) includes a first sealing portion (631) connected to the baffle (62) and a first sealing portion (631) located at The second sealing part (632) on the outer periphery of the first sealing part (631), the second sealing part (632) is arranged obliquely toward the casing sealing surface (64) along the outer periphery of the first sealing part (631), and the second sealing part (632) is arranged obliquely toward the housing sealing surface (64) The second sealing part (632) can be squeezed and deformed after being in contact with the sealing surface (64) of the casing to form a sealing structure. 5. The hydrogen fuel cell vehicle air filter life extension device according to claim 4, characterized in that, the first sealing portion (631) is adapted to the shape of the housing sealing surface (64), and the The thickness of the second sealing part (632) gradually decreases along the outer periphery of the first sealing part (631) toward the housing sealing surface (64).

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