Wire plug connector is one of the most common electronic auxiliary devices in people's lives, and its safety is also the focus of people's attention.When manufacturers produce equipment, they usually test its air tightness. If the air tightness of the wire plug connector is not good, it is easy for internal water to corrode, resulting in the risk of electric shock when people use it.However, ordinary air tightness testing cannot meet the testing needs of many types of wire plug connectors.Hirays Technology has been researching the air tightness testing of various types of wire plug connectors and has made considerable achievements.

This case sharing is about the air tightness testing of wire plug connectors. I hope it can be a reference for everyone.

1. Wire plug connector appearance

(1) The air tightness test was carried out this time on two common wire plug connectors on the market. Their plugs are irregular rectangular parallelepipeds with two contact metals on the head. The shell material is made of anti-leakage material. There is no obvious gap at the joint with the connecting wire, and the airtightness is good;

(2) Such an appearance cannot directly test the air tightness of the wire plug connector, and the wire is in contact with the connector, which is detrimental to the detection;

2. Breakthrough in Difficulties in Detecting Wire Plug Connectors

(1) To test two wire plug connectors at the same time, Hirays Technology has a special dual-station tooling;

(2) For the special shape of the wire plug connector, we customized a special mold for it, and made a special groove for the wire on the mold. When the wire plug connector is put into the mold, it snaps just right. In this way, the upper and lower molds are closed during inspection, which can effectively maintain the sealing of the inspection. When the tooling fills the mold with gas, it can maintain the internal saturation state, which is beneficial to inspection;

3.  Wire plug connector inspection process display and parameters

(Wire plug connector air tightness detector)

   This air tightness tester of Hai Ruisi consists of three parts: tester, air source and test fixture. The equipment is small in size and can be customized with multiple positions, making it easier to implement production line air tightness testing.The air source uses air, which can protect against substances that are denser than air. The Haris intelligent monitoring system digitizes the detection results to achieve high-precision detection of the air tightness of wire plug connectors.

Put the two wire plug connectors into the two tooling molds and connect them to our instrument. There is a valve island, gas tank and other components inside the instrument as well as the program we have set. After the connection, press the start button when testing the wire.

During testing, the instrument inflates the mold.If the wire connector is not sealed and air leakage occurs, the leakage value displayed in the instrument will become larger and larger, and the pressure value will decrease at the same time.At this time, it can be determined whether the wire connector is leaking, and the instrument test result will also show NG, which means the air tightness test failed.If the tested wire connector does not leak, the gas in the tooling mold will be in a constant state after inflation. The pressure value and leakage value displayed on the instrument are also stable. The instrument test result will display OK, indicating that the air tightness test has passed.

(Hiraysi HC classic series air tightness detector parameters)

The copyright belongs to Hirays Technology. Reprinting and counterfeit originality are prohibited. Any violation will be at your own risk.