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Test centre for performance of vehicle wind screen wiper assembly

A car windshield and glass scraping technology, which is applied to the testing of machines/structural components, instruments, measuring devices, etc., can solve the problems of tediousness, high labor intensity, and low degree of automation, so as to ensure detection accuracy, reduce labor intensity, The effect of eliminating potential safety hazards

Inactive Publication Date: 2007-12-19
CHANGZHOU TEXTILE GARMENT INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, one of the traditional testing methods is that the wiper manufacturers use scrapped car fronts for testing. The disadvantages of this method are high cost and large area, and different types of car wipers need to be equipped with different types. Genuine car head or scrap car head; the second traditional test method is to use a single device to test the performance of the wiper assembly one by one
For example, the pressing force of the wiper on the windshield glass of the car is measured with a spring balance when the wiper assembly is in a static state; the braking performance of the wiper assembly is artificially forced repeatedly with fingers Stop working, this manual single test method is very clumsy and cumbersome, the test data error is large, and it cannot achieve the purpose of fully automatic test and test of the wiper assembly in the rainy environment
It takes more than 20 days to do a type test for a set of wiper assembly. Using the above method, inspection personnel must be arranged to stand by the testing machine 24 hours a day. The degree of automation is low, time-consuming, labor-intensive, and the test Data is highly influenced by human factors

Method used

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  • Test centre for performance of vehicle wind screen wiper assembly
  • Test centre for performance of vehicle wind screen wiper assembly
  • Test centre for performance of vehicle wind screen wiper assembly

Examples

Experimental program
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Embodiment Construction

[0041] See Fig. 1 and Fig. 2, a kind of automobile windshield wiper assembly performance test center, it comprises test compartment 1, the pressure transmission device 3 that is placed on the frame 2 in test compartment 1, the pressing force adjustment device 4 , the left wiper brake device 5, the right wiper brake device 6 and the rain device 7 for creating a rainy environment, the electrical control device 8 is placed in an independent electrical control cabinet, including the wiper assembly 9 and the wiper The water motor 10 is the object to be tested, and it is installed on the installation template 4-6 of the pressing force adjustment device 4; the displacement counting sensor 3-4 for testing the stop angle and wiper frequency of the wiper assembly is closely attached to the window. Behind the glass 3-2, the pressure sensor 3-5 for detecting the pressing force of the wiper on the window glass is fixed on the frame 2 behind the window glass frame 3-1;

[0042] See Fig. 3, ...

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Abstract

A test center of wiper assembly on automobile consists of pressure transmission unit and pressing-force regulation unit for detecting and regulating press-force of wiper on window glass, brake unit for repeatedly stopping operation of wiper in transient way, rain unit for providing rain environment in test cabin and control unit of using industrial control computer to make control and data treatment. It is featured as setting said computer and control unit in electric control table and placing all the other said units in closed test cabin with front and back doors.

Description

technical field [0001] The invention relates to an automobile windshield wiper assembly performance testing center. Background technique [0002] The performance indicators of the windshield wiper assembly of the automobile must meet the requirements of the People's Republic of China automobile industry standard QC / T44-1997 "Technical Conditions for Electric Windshield Wipers of Automobiles" before it can be produced and used. QC / T44-1997 "Technical Conditions for Automobile Windshield Electric Wipers" requires that the wiper assembly must be tested in a rainy environment to test its wiping frequency, automatic reset, braking performance, wiping effect, and wiper Many indicators such as the pressing force and durability of the windshield of the car. According to relevant domestic and foreign information inquiries, there is no comprehensive testing equipment that uses an industrial control computer to carry out fully automatic monitoring and testing of the wiper assembly. ...

Claims

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Application Information

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IPC IPC(8): G01M19/00G01M99/00
Inventor 章飞倪智勤张文明曹建军
Owner CHANGZHOU TEXTILE GARMENT INST
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