CN217482088U

CN217482088U - Four-way valve of fuel cell air system and four-way valve assembly

Info

Publication number: CN217482088U
Application number: CN202220831321.6U
Authority: CN
Inventors: 夏全刚; 关慈明; 杨徐星; 张华军
Original assignee: Deran Chongqing Power Technology Co ltd
Current assignee: Deran Chongqing Power Technology Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-09-23
Anticipated expiration: 2032-04-12

Abstract

The utility model relates to a fuel cell system technical field, more specifically says and relates to a fuel cell air system cross valve and cross valve subassembly, one of them fuel cell air system cross valve, which comprises a valve body, the valve body is the inside polyhedral structure who is equipped with the valve pocket, just four at least faces of valve body are for connecting the face, each all be equipped with connector and connecting portion on connecting the face, wherein, connecting portion constitute the articulate piece or connect the valve member and be in connection structure on the valve body, the connector with the valve pocket links to each other. The utility model discloses in through the valve body with a plurality of back pressure valves reasonable arrange integrated in an organic whole to form holistic cross valve subassembly structure, when having guaranteed the unblocked of whole air system flow, avoided the design and the processing of pipeline, hoist system's integrated level.

Description

Four-way valve of fuel cell air system and four-way valve assembly

Technical Field

The utility model relates to a fuel cell system technical field, more specifically say and relate to a fuel cell air system cross valve and cross valve subassembly.

Background

The fuel cell system is mainly used for vehicle-mounted, and in the daily driving process, the working conditions of quick load increasing/reducing, quick starting/stopping and the like are often met, so that higher response and switching requirements are provided for an air passage. In a conventional fuel cell system, in order to reduce the stack decay rate, etc., a shut-off valve, a humidity bypass valve and an air bypass valve are added, and these valve bodies are mainly connected by a four-way valve pipeline assembly, such as the four-way valve disclosed in chinese patent application No. CN 201310186870.8. Because a pipeline structure is required to be arranged, the four-way valve is large in size and heavy in weight, and the distributed layout structure is complex and bloated; meanwhile, the pipeline can form a certain obstacle to the response of the air circuit, the influence of the pipeline on the response speed of the air circuit is different according to the different lengths of the pipeline, and the longer the length of the pipeline is, the larger the influence of the pipeline on the response speed of the air circuit is.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a four-way valve of a fuel cell air system with a simple valve body structure aiming at the defects of the prior art; and based on this cross valve, provide a cross valve subassembly structure that need not built-in pipeline.

The technical solution of the utility model is as follows:

the four-way valve of the fuel cell air system comprises a valve body, wherein the valve body is of a polyhedral structure, a valve cavity is formed in the valve body, at least four faces of the valve body are connecting faces, each connecting face is provided with a connecting port and a connecting portion, the connecting portion forms a connector connecting piece or is connected with a valve piece to form a connecting structure on the valve body, and the connecting ports are communicated with the valve cavity.

In the scheme, the valve body is provided with a connecting part directly used for connecting a connector connecting piece or a connecting valve piece and a plurality of connecting ports communicated with the valve cavity, so that the connector connecting piece or the connecting valve piece can be directly connected to the valve body and mutually communicated through the connecting ports to form a four-way valve assembly structure, and a pipeline structure does not need to be additionally arranged; therefore, on one hand, the design and the processing of pipelines are avoided, the structure of scattered layout of the pipelines is eliminated, on the other hand, the influence of long pipelines on the response speed of an air path is also eliminated, and the pipelines are prevented from blocking the transmission of gas.

Preferably, one of the connecting ports is an air passage inlet, the connecting port on the other side face opposite to the air passage inlet is an air passage outlet, and the air passage inlet, the valve cavity and the air passage outlet form a straight-through air passage.

Preferably, one of the connection surfaces is located above the air passage, and the connection port provided on the connection surface is an exhaust port.

Preferably, one of the connection surfaces is located at one side of the air passage, and the connection port arranged on the connection surface is a humidity bypass port.

Preferably, the connection part includes a screw connection hole provided on the valve body.

Preferably, a part of the connecting portion further includes a raised portion, the raised portion is a raised structure disposed on the connecting surface, and an installation space is formed between the connecting surface and the connecting valve member by the raised portion.

Preferably, a gasket groove is arranged at the position close to the periphery of the connecting port, and the gasket groove is of a circular groove structure for installing a sealing gasket.

As a preferred scheme, at least two mounting parts are arranged on one side surface of the valve body, and a yielding groove is formed between every two mounting parts; each installation department is last all to be equipped with the mounting hole, and arbitrary on the installation department the position of arranging of mounting hole all is different.

Preferably, the valve body is an integrally formed polyhedron made of titanium alloy.

A fuel cell air system four-way valve assembly comprising said four-way valve and further comprising:

the joint connecting piece is directly covered and connected on the air path inlet through the connecting part and is communicated with the valve cavity through the air path inlet;

the stop valve is directly connected to the air path outlet in a covering manner through the connecting part and is communicated with the valve cavity through the air path outlet;

the exhaust valve is directly connected to the exhaust port in a covering mode through the connecting part and communicated with the valve cavity through the exhaust port;

and the humidity bypass valve is directly connected to the humidity bypass port in a covering manner through the connecting part and is communicated with the valve cavity through the humidity bypass port.

The utility model discloses a main beneficial effect lies in:

1. a plurality of back pressure valves are reasonably arranged and integrated into a whole through the valve body, so that a whole four-way valve assembly structure is formed, the smoothness of the flow of the whole air system is guaranteed, meanwhile, the design and processing of pipelines are avoided, and the integration level of the system is improved.

2. The valve body is used as a joint connecting piece and a connecting and supporting structure of a connecting valve piece, so that the quantity requirement of mounting brackets in a fuel cell system is reduced, the weight of the system is reduced, the cost is saved, and the processing and mounting time is saved.

3. The arrangement position of the connecting ports and the installation position of the connecting valve are set according to the characteristics of gas in the fuel cell system, so that the overall performance of the four-way valve assembly is improved.

4. The valve body is integrally processed by high-strength titanium alloy, the titanium alloy has high strength and good corrosion resistance, and the requirements on the use environment and the mechanical property of an automobile under severe working conditions are met.

Further or more specific advantages will be described in the detailed description in connection with the specific embodiments.

Drawings

The invention is further described with reference to the accompanying drawings:

fig. 1 is a schematic view of the overall assembly of the present invention.

Fig. 2 is a schematic structural diagram of the valve body of the present invention.

Fig. 3 is a schematic structural diagram of the valve body of the present invention.

Shown in the figure: the valve comprises a valve body 1, a valve cavity 101, an air channel inlet 1011, an air channel outlet 1012, an exhaust port 1013, a humidity bypass port 1014, a connecting part 102, a threaded connecting hole 1021, a raised part 1022, a gasket groove 103, a mounting part 104, an abdicating groove 1041, a mounting hole 1042, a joint connecting piece 2, a connecting valve piece 3, a stop valve 301, an exhaust valve 302 and a humidity bypass valve 303.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. In addition, the terms "vertical", "horizontal", "top", "bottom", "front", "back", "upper", "lower", "inner", "outer", and the like in the embodiments of the present invention refer to the orientation or positional relationship based on the orientation or positional relationship shown in fig. 1, or the orientation or positional relationship that the product is conventionally placed when in use, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. It is further noted that, unless expressly stated or limited otherwise, terms such as "mounted," "connected," "secured," and the like are intended to be construed broadly, and thus, for example, "connected" may be fixedly, releasably, or integrally connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model discloses an embodiment one, the problem that is based on current cross valve pipeline subassembly overall arrangement structure is both complicated and bloated is proposed, in order to solve this problem, make the last connection valve spare of cross valve subassembly can concentrate more, install closely together, it is inseparabler to form the structure, the higher cross valve subassembly structure of integrated level, the inventor has proposed a fuel cell air system cross valve, exactly, mainly refer to the cross valve that is applied to in the hydrogen fuel cell air system in this embodiment, can be with the commonly used connection valve spare 3 in the hydrogen fuel cell air system, promptly: the stop valve 301, the exhaust valve 302, and the humidity bypass valve 303 are directly connected to the four-way valve to form a four-way valve assembly without a piping structure. The first embodiment will be described in detail with reference to the accompanying drawings.

A four-way valve for a fuel cell air system, referring to fig. 1 to 3, comprising a valve body 1, wherein the valve body 1 is a polyhedron structure, preferably a hexahedron structure, provided with a valve cavity 101 therein; and at least four faces of the valve body 1 are connecting faces, each of which is provided with a connecting port and a connecting portion 102, wherein the connecting portion 102 constitutes a connecting structure of the connector connecting member 2 or the connecting valve member 3 on the valve body 1. Specifically, the connecting portion 102 includes threaded connecting holes 1021 provided in the valve body 1, and in this embodiment, four threaded connecting holes 1021 are provided at intervals around the connecting port, and when the valve body 1 is mounted and connected, the joint connector 2 or the connecting valve member 3 is inserted through the joint connector 2 or the connecting valve member 3 by inserting the threaded end of the connecting screw into the threaded connecting holes 1021, so that the joint connector 2 or the connecting valve member 3 is fixed to the valve body 1. Furthermore, in the actual installation process, due to the fact that the size of the connecting valve piece 3 is large, scraping and bumping are easy to occur during installation; therefore, in this embodiment, a part of the connection part 102 further includes a raised part 1022, the raised part 1022 is a raised structure disposed on the connection surface, and a mounting space is formed between the connection surface and the connection valve element 3 by the raised part 1022. Therefore, the distance between the connecting valve pieces 3 and the valve body 1 can be increased through one installation interval, and further the distance between the adjacent connecting valve pieces 3 can be properly increased, so that the optimum installation interval is regulated and controlled, and scraping and collision are avoided.

Preferably, in order to form a four-way valve body, in this embodiment, each of the connection ports is connected to the valve cavity 101; and the arrangement of the connection ports is set according to the mounting structure of the connection valve member 3, and the characteristics of the gas in the fuel cell system. Specifically, the connection ports of the present embodiment are divided into an air path inlet 1011, an air path outlet 1012, an exhaust port 1013, and a humidity bypass port 1014, according to the type of the structure of the connecting valve element 3 to be connected. Wherein, the air path inlet 1011 is arranged on one side surface of the valve body 1, and the air path outlet 1012 is arranged on the other side surface opposite to the air path inlet 1011, so that the air path inlet 1011, the valve cavity 101 and the air path outlet 1012 together form a straight-through air path channel. Therefore, during normal operation, fuel gas can directly and quickly enter from the air passage inlet 1011, pass through the straight-through air passage and be discharged from the air passage outlet 1012 without being bent, so that the fastest response speed can be ensured while the transportation loss of the gas is reduced. Further, in this embodiment, one of the connection surfaces is located above the air passage, and the connection port provided on the connection surface is the exhaust port 1013. Still further, in the present embodiment, one of the connection surfaces is located at one side of the air passage, and the connection surface provided on the connection surface is a humidity bypass port 1014, so that the air can horizontally flow into the humidity bypass valve 303 from the side to perform humidity adjustment. The connecting valve part 3, which is adapted to be connected to the connecting port, will be described in detail below and will not be described here.

Preferably, in order to stably connect the valve body 1 to a mounting bracket, at least two mounting portions 104 are provided on a side surface of the valve body 1 in this embodiment, that is, any side surface excluding the connecting surface, and a relief groove 1041 is formed between every two mounting portions 104; therefore, the connection stability is ensured, and meanwhile, the connection interference of certain protruding structures on the mounting bracket to the valve body 1 can be avoided. Further, in order to enable the valve body 1 to be stably connected to a fuel cell air system, each of the mounting portions 104 is provided with a mounting hole 1042, the mounting hole 1042 is preferably in a threaded hole structure, and the arrangement positions of the mounting holes 1042 on any one of the mounting portions 104 are different, so that a mistake-proofing design is formed, and the accuracy of the assembly direction of the whole valve body can be ensured.

Preferably, in order to enable the joint connector 2 or the connecting valve member 3 to be more tightly connected to the valve body 1 and improve the sealing performance of the integral four-way valve assembly, an O-ring is preferably installed between the joint connector 2 or the connecting valve member 3 on the connecting surface of the valve body 1; therefore, in order to better position and mount the O-ring, the gasket groove 103 is provided near the outer circumference of the connection port in this embodiment, and the gasket groove 103 has a circular groove structure for mounting a gasket

Preferably, due to the requirements of the service environment and the mechanical property under the severe working conditions of the vehicle, the valve body 1 is preferably an integrally formed polyhedron made of titanium alloy, the titanium alloy is high in strength and good in corrosion resistance, and the service life of the valve body 1 can be prolonged.

As an embodiment of the utility model discloses a second, refer to fig. 1, a fuel cell air system cross valve subassembly, include the cross valve, still include:

the joint connecting piece 2 is preferably a flange joint structure for connecting an air inlet pipeline, is directly connected to the air path inlet 1011 in a covering manner through the connecting part 102, and is communicated with the valve cavity 101 through the air path inlet 1011;

a shut valve 301 directly cover-connected to the air passage outlet 1012 by a connecting portion 102 and communicating with the valve chamber 101 through the air passage outlet 1012;

an exhaust valve 302 directly covering and connected to the exhaust port 1013 via a connecting portion 102 and communicating with the valve chamber 101 via the exhaust port 1013;

and a humidity bypass valve 303 directly cover-connected to the humidity bypass port 1014 through the connection part 102, and communicating with the valve chamber 101 through the humidity bypass port 1014.

In the description herein, references to the description of the terms "embodiment," "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fuel cell air system four-way valve is characterized in that: including valve body (1), valve body (1) is the inside polyhedral structure who is equipped with valve pocket (101), just four at least faces of valve body (1) are for connecting the face, each all be equipped with connector and connecting portion (102) on connecting the face, wherein, connecting portion (102) constitute and connect connecting piece (2) or connect valve member (3) and be in connection structure on valve body (1), the connector with valve pocket (101) link to each other.

2. A fuel cell air system four-way valve as defined in claim 1 wherein: one of the connecting ports is an air path inlet (1011), the connecting port on the other side face opposite to the air path inlet (1011) is an air path outlet (1012), and the air path inlet (1011), the valve cavity (101) and the air path outlet (1012) jointly form a straight-through air path channel.

3. A fuel cell air system four-way valve according to claim 2 wherein: one of the connecting surfaces is positioned above the air channel, and the connecting port arranged on the connecting surface is an air outlet (1013).

4. A fuel cell air system four-way valve according to claim 3 wherein: one of the connecting surfaces is positioned at one side of the air channel, and the connecting surface is provided with a humidity bypass port (1014).

5. The fuel cell air system four-way valve of claim 4 wherein: the connecting portion (102) comprises a threaded connecting hole (1021) arranged on the valve body (1).

6. The fuel cell air system four-way valve of claim 5 wherein: part of the connecting part (102) also comprises a raised part (1022), the raised part (1022) is a raised structure arranged on the connecting surface, and a mounting interval is formed between the connecting surface and the connecting valve element (3) through the raised part (1022).

7. The fuel cell air system four-way valve according to any one of claims 1 to 6, wherein: and a gasket groove (103) is formed in the periphery close to the connecting port, and the gasket groove (103) is of a circular groove structure for mounting a sealing gasket.

8. The fuel cell air system four-way valve of claim 7 wherein: at least two mounting parts (104) are arranged on one side surface of the valve body (1), and an abdicating groove (1041) is formed between every two mounting parts (104); each mounting part (104) is provided with a mounting hole (1042), and the arrangement positions of the mounting holes (1042) on any mounting part (104) are different.

9. The fuel cell air system four-way valve of claim 1 wherein: the valve body (1) is an integrally formed polyhedron made of titanium alloy.

10. The utility model provides a fuel cell air system cross valve subassembly which characterized in that: the four-way valve of claim 6 further comprising:

the joint connecting piece (2) is directly connected to the air path inlet (1011) in a covering mode through the connecting part (102) and communicated with the valve cavity (101) through the air path inlet (1011);

a shut-off valve (301) directly cover-connected to the air passage outlet (1012) through the connecting portion (102) and communicated with the valve chamber (101) through the air passage outlet (1012);

a vent valve (302) directly cover-connected to the vent port (1013) by the connecting part (102) and communicated with the valve chamber (101) through the vent port (1013);

and the humidity bypass valve (303) is directly connected to the humidity bypass port (1014) in a covering manner through the connecting part (102), and is communicated with the valve cavity (101) through the humidity bypass port (1014).