Electromagnet coil waterproof performance detection device and method

Abstract

The invention relates to an electromagnet coil waterproof performance detection device and method. The method includes the steps that an electromagnet coil to be detected is put into a closed container; clear water is injected into the closed container, and the clear water submerges the electromagnet coil; the closed container is sealed, and an initial pressure value of a pressure detection deviceis adjusted; when the initial pressure value is a set value, compressed air is injected into the closed container, timing is conducted, and when timing reaches the set value, compressed air injectionis stopped; after compressed air injection is stopped, an exhaust valve is opened for exhausting; after exhausting, the electromagnet coil is taken out; and after water stains on the surface of the electromagnetic coil are blow-dried, an insulation resistance value and a leakage current value of the electromagnetic coil are detected, and whether the standard requirement is met or not is judged according to the detection value. The detection device is used for detecting the waterproof performance of the electromagnet coil, so that the waterproof performance of the electromagnet coil can be quickly judged, first piece detection and process casual inspection can be carried out in actual production operation, and the quality reliability and stability of an injection molding coil are guaranteed.

Description

technical field [0001] The invention relates to the technical field of electromagnet detection for hydraulic valves, in particular to an electromagnet coil waterproof performance detection device and detection method. Background technique [0002] The injection molding coil of the electromagnet depends on the filling and wrapping of the injection plastic to protect the copper wire winding, so the sealing performance of the injection molding coil directly determines the reliability and service life of the electromagnet, so the injection molding coil should be tested Judgment, we usually use HydraForce’s continuous soaking test method for testing. After the coil is connected to the power supply of rated voltage, it is immersed in 1 meter deep water for 120 hours. After the test, the insulation resistance and leakage current are tested for whether Meet the standard value. The defect of this method is that the test period is long, and it is not suitable for normal flow producti...

AI Technical Summary

Problems solved by technology

[0003] The first object of the present invention is to provide a detection device for the waterproof performance of the electromagnet coil, which can solve the problem of long detection period of the existing detection method;

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