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Testing bench used for detecting air leakage of automobile air conditioner ventiduct

A technology of automobile air conditioner and test bench, which is applied in the direction of measurement device, machine/structural component testing, fluid flow detection by measuring pressure difference, etc. It is used to detect the problems of automobile air-conditioning air duct detection equipment, etc., so as to improve the detection accuracy

Active Publication Date: 2011-06-29
武汉经开科创运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the quality of automotive air-conditioning ducts is uneven. The reason is that there is no testing equipment for testing various parameters of automotive air-conditioning ducts, which affects the development of the automotive air-conditioning industry.

Method used

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  • Testing bench used for detecting air leakage of automobile air conditioner ventiduct
  • Testing bench used for detecting air leakage of automobile air conditioner ventiduct
  • Testing bench used for detecting air leakage of automobile air conditioner ventiduct

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 Shown embodiment 1 of the test bench of the present invention, it comprises: the plenum chamber, the pressure sensor that is arranged on the plenum chamber, computer, fan, fan controller, pipeline; The fan is controlled by the fan controller; The pipeline is connected with the fan, and the pipeline is provided with a flow sensor; the plenum chamber is provided with an interface for connecting with the air-conditioning duct of the car under test; the output end of the pressure sensor is connected with the fan controller; the output end of the flow sensor is connected with the computer.

[0026] The pipeline includes a first pipeline, a second pipeline and a flow sensor pipeline; the plenum is connected to the air outlet of the fan through the first pipeline, and the plenum is connected to the air outlet of the fan through the second pipeline; the flow sensor The two ends of the pipeline are respectively communicated with the first pipeline and the second pi...

Embodiment 2

[0033] like figure 2 The shown embodiment 2 of the test bench of the present invention differs from Embodiment 1 in that the fan includes a blower and an exhaust fan; the plenum is connected with the exhaust fan through the first pipeline, and the plenum is connected with the blower through the second pipeline. Connection; the fan controller controls the blower and exhaust fan separately.

Embodiment 3

[0034] like image 3 Shown embodiment 3 of the present invention's test bed, it comprises: the pressure transducer that is arranged on the pressure chamber, computer, blower fan, blower fan controller, pipeline in the surge chamber; The fan controller is controlled; the plenum is connected to the fan through a pipeline, and the flow sensor F1 is installed on the pipeline; the plenum is provided with an interface for connecting with the air-conditioning duct of the car under test; the output end of the pressure sensor is connected to the fan controller Connection; the output end of the flow sensor is connected to the computer. The flow sensor in Embodiment 3 is a two-way air flow sensor.

[0035] Embodiments 1 and 2 of the present invention have the characteristics of large measuring range, high sensitivity, accurate pressure control, high degree of automation, and convenient use, and are the best implementation modes.

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Abstract

The invention relates to a test bed for detecting the automotive air conditioning duct air leakage, comprising a regulator room, a pressure sensor arranged in the regulator room, a flow sensor, a solenoid valve, a computer, a blower, a blower controller and a pipeline; the blower is controlled by the blower controller; the regulator room is connected with the blower through the pipeline on which the flow sensor is arranged; the regulator room is provided with an interface for connecting the automotive air conditioning duct under detection; and the output end of the pressure sensor is connected with the blower controller. The test bed is provided with a relatively stable pressure room at the upstream of the automotive air conditioning duct under detection, so that a relatively stable pressure difference can be formed between the automotive air conditioning duct and the atmosphere; the automotive air conditioning duct air leakage caused by the effect of the pressure difference is equal to the air flow sent (or pumped under negative pressure) by the blower at the upstream of the regulator room; therefore, the air flow measured by the flow sensor is also the air leakage generated under the effect of the pressure difference by the automotive air conditioning duct.

Description

technical field [0001] The invention relates to a detection device, in particular to a test bench for detecting an automobile air conditioner, in particular to a test bench for detecting air leakage in an air duct of an automobile air conditioner. Background technique [0002] At present, the quality of automotive air-conditioning ducts is uneven. The reason is that there is no testing equipment for testing various parameters of automotive air-conditioning ducts, which affects the development of the automotive air-conditioning industry. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a test bench for detecting the air leakage of the automobile air-conditioning duct. [0004] The technical solution adopted by the present invention to solve the problems of the technologies described above is: [0005] A test bench for detecting the air leakage of the automobile air-conditioning duct, which includes: a plenum chamber, a fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/34G01M99/00
Inventor 田韶鹏徐达伟吉孔武仇绪甲杨莉玲郑重
Owner 武汉经开科创运营有限公司
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