Door seal airtightness detecting device and method

A technology of tightness detection and sealing cover, which is applied in the direction of using liquid/vacuum degree for liquid tightness measurement, and by measuring the acceleration and deceleration rate of fluid, etc. The detection accuracy, the detection operation is simple and clear, and the effect of improving the quality and reliability of the door seal

Inactive Publication Date: 2014-07-16
崔祺
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Problems solved by technology

The disadvantages of the existing door seal leak detection device are: on the one hand, because the "cold air" is smaller than water in microscopic size, it can leak from the door seal with the gas, so the detection device based on the dripping leakage test has certain limitations. It is not easy to characterize the sealing performance of the door seal; on the other hand, the existing detection device based on the dripping leakage test has a large human error due to the dripping operation in practice

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  • Door seal airtightness detecting device and method

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Embodiment Construction

[0023] In the Detailed Description that follows, reference is made to the accompanying drawings that form a part hereof. The aspects of the invention generally described herein and illustrated in the drawings may be permuted, substituted, combined, Splits and deletions, all such permutations, substitutions, combinations, splits and deletions fall within the scope of the present invention.

[0024] figure 1 It is a cross-sectional view of the door seal tightness detection device 100 according to the present invention, schematically showing its structure. Depend on figure 1 It can be seen that the door seal leak detection device 100 includes a sealed box 102 , a door seal 104 to be tested, a seal cover 106 , a helium injection port 108 , and a helium concentration detection probe 110 . The shape of the sealing cover 106 matches the sealing box 102, so that when the sealing cover 106 is closed on the sealing box 102, the sealing cover 106 and the sealing box 102 can form a clo...

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Abstract

A door seal airtightness detecting device is characterized in that the door seal airtightness detecting device comprises a sealing box body, a sealing cover, a helium injection port, a helium concentration detection probe, a data collection instrument and a door seal to be detected. The sealing cover is matched with the sealing box body, and when the sealing cover is closed on the sealing box body, the sealing cover and the sealing box body form a sealing space. The helium injection port is formed in the sealing box body, and helium can be injected into the sealing space through the helium injection port. The helium concentration detection probe is arranged on the sealing box body, stretches into the sealing box body, and is used for detecting the helium concentration in the sealing box body. The data collection instrument is connected with the helium concentration detection probe, and is used for monitoring the helium concentration in real time. The door seal to be detected is cut into a structural size which is suitable for the sealing cover, is mounted at the position, which can make contact with the sealing box body in a closed state, of the sealing cover, and is used for sealing the clearance between the sealing cover and the sealing box body.

Description

technical field [0001] The invention relates to the field of airtightness detection, in particular to a device and a method for detecting the airtightness of a door seal structure, and more particularly to a device and a method for detecting the airtightness of a door seal structure used between a refrigerator door body and a box body. Background technique [0002] The refrigerator door seal is a refrigerator accessory used to seal between the refrigerator door and the cabinet. At present, there are many kinds of door seal structures used in refrigerators, which mainly play the role of sealing and preventing leakage. If the door seal is not tight, the compressor will not stop running, the temperature in the box will not reach the set value, and the cooling effect will deteriorate. Therefore, it is necessary to test the tightness of the door seal. The principle of the existing door seal airtightness detection device is based on the drip leak test, dripping water into the spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
Inventor 陈士发张磊周更生
Owner 崔祺
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