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Demagnetization test device and method for electric fan of automobile radiator

The technology of a test device and test method is applied in the field of demagnetization test device of automobile radiator electric fan to achieve the effect of reducing line fire

Active Publication Date: 2022-04-01
东风博泽汽车系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides an electric fan demagnetization test device and method for automobile radiators to solve the problems in the prior art

Method used

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  • Demagnetization test device and method for electric fan of automobile radiator
  • Demagnetization test device and method for electric fan of automobile radiator
  • Demagnetization test device and method for electric fan of automobile radiator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 provided by the present invention is an embodiment of a demagnetization test device for an electric fan of an automobile radiator provided by the present invention. The embodiment of the test device includes: a programmable regulated power supply, a high and low temperature test box, a test tool and Air volume test bench.

[0036] The programmable regulated power supply can be a 30V~200A programmable DC regulated power supply, and the high and low temperature test chamber is ≥1m 3 .

[0037] The test fixture provides the installation and fixing position for the actual loading method of the electric fan;

[0038] The electric fan is installed and fixed on the test tool and then placed in the high and low temperature test box, which provides low temperature for testing; the programmable regulated power supply provides test voltage for the electric fan;

[0039] Specifically, the low temperature range for the test is -40°C±2°C; the voltage range for the test...

Embodiment 2

[0044] Embodiment 2 provided by the present invention is an embodiment of a demagnetization test method for an electric fan of an automobile radiator provided by the present invention. The embodiment of the test method is based on an electric fan demagnetization test device for an automobile radiator provided by the present invention. Before the test Including: test the performance of the electric fan (the air volume under the specified static pressure), install the electric fan on the cooling module, fix it on the test tool according to the actual vehicle installation method, put it in the high and low temperature test box, connect the wires, and the high and low temperature test box Set the temperature and debug the programming power supply.

[0045] Such as figure 1 Shown is the flow chart of the embodiment of a kind of automobile radiator electric fan demagnetization test method provided by the present invention, combined figure 1 As can be seen, the embodiment of this te...

Embodiment 3

[0053] Embodiment 2 provided by the present invention is a specific application embodiment of a kind of electric fan demagnetization test method for automobile radiator provided by the present invention, such as figure 2 Shown is a schematic diagram of parameter curves for a demagnetization test based on a demagnetization test method for an electric fan of an automobile radiator provided by the present invention. figure 2 Among them, the unit after the number is A indicating the current curve, the unit after the number is V indicating the voltage curve, and the unit after the number is ℃ indicating the temperature curve. The following tables 1 and 2 are the performance table of the electric fan of the automobile radiator and the performance value table of (after the test-before the test) / before the test respectively.

[0054] Table 1: Performance table of electric fan of automobile radiator (air volume under specified static pressure):

[0055]

[0056] Table 2: (after the...

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Abstract

The invention relates to a demagnetization test device and method for an electric fan of an automobile radiator. The test device includes: a programmable voltage stabilized power supply, a high and low temperature test box, and a test tool; The electric fan is installed and fixed on the test tool and then placed in the high and low temperature test chamber. The high and low temperature test chamber provides the low temperature for the test; the programmable regulated power supply provides the test voltage for the electric fan; the electric fan is started many times during the test, and the comparison before and after the test The performance data of the electric fan judges whether the electric fan is demagnetized. Use the impact of the starting current to test whether the electric fan of the car radiator will demagnetize if it is frequently started in such an environment. It can not only judge whether the electric fan motor of the radiator is demagnetized, but also reduce the safety of the circuit fire caused by the excessive current after demagnetization. It can provide theoretical data support for the demagnetization protection design scheme of the electric fan of the automobile radiator.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to a demagnetization test device and method for an electric fan of an automobile radiator. Background technique [0002] The electric fan of the car radiator may be started frequently during actual use. If the electric fan motor of the car radiator is demagnetized, the current of the electric fan will increase, and the circuit connected to the electric fan will rapidly age and short-circuit, which may cause the circuit to catch fire and affect the safety of the car. [0003] But do not have the scheme that demagnetization test is carried out to the electric fan of this automobile radiator in the prior art at present. Contents of the invention [0004] Aiming at the technical problems in the prior art, the invention provides a demagnetization test device and method for an electric fan of an automobile radiator to solve the problems in the prior art. [0005] According to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/12
CPCG01R33/12
Inventor 钟金辉
Owner 东风博泽汽车系统有限公司
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