Current detection device and method for vehicle lamp temperature test

A current detection device and temperature test technology, which is applied in the field of temperature test, can solve the problems of inaccurate data acquisition, power consumption of resistance, and reduced test accuracy, and achieve the effects of accurate clock, small mutual influence and high reliability

Inactive Publication Date: 2018-07-31
DENKEI TECH RANDD SHANGHAI CO LTD
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  • Abstract
  • Description
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Problems solved by technology

In this method, because the resistance itself consumes power and affects the current of the entire loop, the test accuracy is reduced, and the required data cannot be accurately obtained.

Method used

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  • Current detection device and method for vehicle lamp temperature test
  • Current detection device and method for vehicle lamp temperature test

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0025] Such as figure 1 As shown, the present embodiment provides a current detection device for the temperature test of vehicle lamps, including a test box 2 for placing the test sample 1, a PLC controller 3 for controlling the work of the test sample 1, and a The current signal detection unit 4 of the sample 1 current signal and the current recorder 5 for recording the current signal, the PLC controller 3, the current signal detection unit 4 and the current recorder 5 are all arranged outside the test box 2, and the current recorder 5 is respectively Connect the PLC controller 3 an...

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Abstract

The invention relates to a current detection device and method for a vehicle lamp temperature test. The device comprises a test box for accommodating a test sample, a PLC controller for controlling atest sample to work, a current signal detection unit for collecting current signals of a test sample and a current recorder for recording the current signals, wherein the PLC controller, the current signal detection unit and the current recorder are all arranged outside the test box; the current recorder is connected with the PLC controller and the current signal detection unit respectively; the test sample is arranged in the test box, the current detection device is power-on, the PLC controller controls the test sample to be turned on and turned off according to a set frequency, the current signal detection unit collects current signals during a test sample on and off process and transmits the signals to the current recorder; and the current recorder records the received current signals.Compared with the prior art, the device and the method have the advantages that the sample current data can be accurately tested, no extra power consumption is generated and the like.

Description

technical field [0001] The invention relates to temperature test technology, in particular to a current detection device and method for temperature test of vehicle lamps. Background technique [0002] In the prior art, the detection tests of automobile lamps are very diverse. During the temperature test of automotive lamps, the lamps will be turned on and off repeatedly. In order to check when the sample will fail, it is necessary to detect the voltage when the lamp is turned on each time to confirm whether the lamp is working normally. However, the traditional test method is to use a series resistor to measure the voltage across the resistor to convert it into a current. In this method, because the resistance itself consumes power and affects the current of the entire loop, the test accuracy is reduced, and the required data cannot be accurately obtained. Contents of the invention [0003] The object of the present invention is to provide a current detection device for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/44G01R19/25
CPCG01R31/44G01R19/25
Inventor 展玮鸿
Owner DENKEI TECH RANDD SHANGHAI CO LTD
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