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Auxiliary device and differential pressure sensor assembly

A technology of sensor components and auxiliary devices, applied in the direction of measuring devices, pressure difference measurement between multiple valves, instruments, etc., can solve the problems of shortened life, easy entry of dust, unstable test values, etc., to improve stability, The effect of avoiding interference

Pending Publication Date: 2019-01-25
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention discloses an auxiliary device and a differential pressure sensor assembly, which solves the problem of unstable test values ​​caused by existing differential pressure sensors and easy entry of dust, resulting in shortened service life

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with embodiment, but is not limited to the content on the description.

[0029] Such as figure 1 As shown, the present invention discloses an auxiliary device, including a housing 10, a first flow channel 20 and a second flow channel 30 are arranged in the housing 10, and the entrance of the first flow channel 20 and the entrance of the second flow channel 30 are respectively located at At different positions of the detected object 40 , the outlet of the first flow channel 20 and the outlet of the second flow channel 30 are all in communication with the differential pressure sensor 50 . According to the present invention, the first flow channel 20 and the second flow channel 30 are arranged in the housing 10, and the entrance of the first flow channel 20 and the entrance of the second flow channel 30 are respectively located at different positions of the detected object 40, which are detected during de...

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Abstract

The invention discloses an auxiliary device and a differential pressure sensor assembly. The auxiliary device comprises a housing; a first flow channel and a second flow channel are arranged in the housing; and the outlet of the first flow channel and the outlet of the second flow channel are both communicated with a differential pressure sensor. According to the auxiliary device and the differential pressure sensor assembly of the present invention, the first flow channel and the second flow channel are arranged in the housing; when the air pressure of a detected object is detected, the gas intake terminal of the differential pressure sensor is communicated with the outlet of the first flow channel and the outlet of the second flow channel, and therefore, a gas can be introduced into thegas intake terminal of the differential pressure sensor through the first flow channel and the second flow channel, and therefore, the measurement of differential pressure can be achieved; and since the first flow channel and the second flow channel are built in the housing, and therefore, the first flow channel and the second flow channel are not need to be fixed again, interference from the outside can be avoided, and therefore, the stability of a test numerical value can be improved.

Description

technical field [0001] The invention relates to the technical field of differential pressure sensors, in particular to an auxiliary device and a differential pressure sensor assembly. Background technique [0002] After the filter is used for a period of time, due to the accumulation of dust, the resistance will increase, the air volume will attenuate, and the pressure difference between the two ends of the filter will also increase. The pressure difference sensor can test the pressure difference between the two ends of the filter to determine whether the filter is invalid. [0003] The most commonly used method is to lead out the hose at both ends of the object to be detected. The advantage is that the hose can increase the detection range and is not limited by the outlet position of the differential pressure sensor itself. However, the hose is not easy to fix and is easily affected by external forces. Interference, resulting in unstable test values ​​and unable to measure ...

Claims

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Application Information

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IPC IPC(8): G01L13/00
CPCG01L13/00
Inventor 邓晶杜辉林国游赵时俊邵元浩陈博强孔环灵刘小康
Owner GREE ELECTRIC APPLIANCES INC
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