Connecting structure for short joint and used for fuel cell system

A fuel cell system and connection structure technology, which is applied in the direction of fuel cells, fuel cell additives, hose connection devices, etc., can solve problems such as low degree of connection fastening, aging of joint glue, and air leakage at joints, etc., to achieve High degree of fastening, good sealing performance, avoiding the effect of sealing

Pending Publication Date: 2020-04-10
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it often occurs that the length of the hose or hard tube inserted into the joint is too short, resulting in a low degree of connection tightness
During use, it is easily affected by mechanical vibration, which may easily cause local air leakage.
In addition, the use of glue-assisted

Method used

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  • Connecting structure for short joint and used for fuel cell system
  • Connecting structure for short joint and used for fuel cell system
  • Connecting structure for short joint and used for fuel cell system

Examples

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[0024] In the following, the present invention will be further described with reference to the embodiments, but it does not constitute any limitation to the present invention. Any limited modification made by anyone within the scope of the claims of the present invention is still within the scope of the claims of the present invention.

[0025] Refer to Figure 1-Figure 4 , A connection structure for short connectors in a fuel cell system of the present invention includes a first connector 1 and a second connector 2; and also includes a sealed connector 3. The sealing connector 3 includes an inner sleeve 31 and an outer sleeve 32. An insertion groove 33 is provided between the inner sleeve 31 and the outer sleeve 32. The first connector 1 is inserted in the inner sleeve 31, and the second connector 2 is inserted in the insertion slot. In the groove 33, a locking member 4 is provided on the outer side of the sealing connecting member 3. Specifically, the locking member 4 is a hoo...

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Abstract

The invention discloses a connecting structure for a short joint and used for a fuel cell system, relates to the technical field of sealed connecting structures of vehicle fuel cell systems, and solves the problems of low fastening degree and poor durability in the prior art. The connecting structure comprises a first connector and a second connector, and further comprises a sealing connector, thesealing connector comprises an inner sleeve and an outer sleeve, a plug-in slot is formed between the inner sleeve and the outer sleeve, the first connector is in inserted connection within the innersleeve, the second connector is in inserted connection within the plug-in slot, and a locking piece is arranged on the outer side of the sealing connector. The connecting structure is reasonable in structure and reliable in connection, the two joints can be firmly connected, the fastening degree is high, the durability and the sealing performance are high, and the possible aging problem of glue after using of the glue is avoided.

Description

technical field [0001] The present invention relates to the technical field of the sealing connection structure of the vehicle fuel cell system, more specifically, it relates to a connection structure for short joints in the fuel cell system. Background technique [0002] The fuel cell system engine is a vehicle power system for new energy vehicles. The fuel cell system engine uses the electrochemical reaction of fuel hydrogen and oxidant to output energy to the outside. The fuel cell system can be divided into a hydrogen subsystem, an air subsystem, and a cooling water subsystem. Among them, the flowing media in the hydrogen subsystem and the air subsystem are gaseous hydrogen and oxygen respectively, so the sealing and connection reliability of the pipeline are very important. Due to the limitation of the layout space inside the car or the design of the parts, the connecting pipes are usually connected with short joints, that is, joints with a length less than 20mm. [...

Claims

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Application Information

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IPC IPC(8): F16L21/08F16L33/00F16L33/22H01M8/04082H01M8/04089
CPCF16L21/08F16L33/00F16L33/225H01M8/04089H01M8/04201Y02E60/50
Inventor 叶遥立王兵杰王福刘兵覃敏航陈军荣陆永卷李昌煜夏景霖杨升
Owner GUANGXI YUCHAI MASCH CO LTD
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