General charging plugs are not waterproof, so they are generally used indoors.However, some charging plugs or industrial charging plugs that need to be used outdoors need to have higher sealing properties.In order to meet the requirements for outdoor charging, waterproofing is required.The main evaluation standard for the waterproof performance of waterproof plugs is based onIPProtection level.To see how waterproof the waterproof plug is, it mainly depends onIPXYThe second digit afterY, No.2The number of digits is from0arrive8, the highest level is8, is the degree of protection that prevents water from entering the equipment shell in various forms;Therefore, the highest level of protection of the connector isIP68。
For waterproof plugs generally used outdoors, the waterproof level must reachIP67.If you are near water, such as on a boat or at the beach, it is best to reachIP68 。
Today we are going to do a waterproof test on this plug. The waterproof level needs to reachIP67 .As you can see from the product picture, this product is made of rubber as a whole.The stainless steel plug and charging head are also waterproofed by wrapping a waterproof tape.What we want to test is whether there is a possibility of water leakage at these connections.
(Air tightness testing product: charging plug)
For product waterproof testing, we use the pressure decay method for testing.According to the waterproof level and product characteristics of the product, determine the test pressure of the product, and inflate the specific test air pressure into the interior of the product or the surface of the product's test mold.The sensor determines whether there is a leak in the product by sensing changes in the internal air pressure of the product.Because the test medium is compressed air, there is no harm to the test product.There are many air tightness testers on the market, and the quality and price are also uneven. To judge the quality of an air tightness tester, it mainly depends on the accuracy and stability of the test.Hairis air tightness detector has strong stability and provides free trial service.Good after-sales service, available in Guangdong Province24With hours of after-sales service, our air tightness detectors have been used in thousands of factories to protect customers' product quality.
Because the product does not have an inflation port, a test mold was made according to the product shape, the test product was placed inside the mold, and the test pressure was filled into the mold. Because the space of the mold is certain, the pressure is certain. If the test product does not leak, the air pressure will be in the gap between the surface of the test product and the mold, and the air pressure will remain unchanged.If there is a leak in the test product, the air pressure in the mold will leak into the product, and the air pressure inside the mold will drop.The sensor inside the air tightness detector can quickly and keenly capture the changes in air pressure inside the mold and the call data is displayed on the display.Hairis air tightness testing equipment is equipped with high-precision sensors with an accuracy of0.2%FS.Test results are more objective and accurate.
(Charging plug air tightness testing mold)
Usually, air tightness testing equipment consists of an air tightness detector and testing tooling and molds. The testing tooling and molds need to be customized according to the customer's test products.Generally, the time to design and produce test tooling is15sky.The picture below shows the complete air tightness testing equipment we made for the charging plug.Set the test parameters, connect the instrument and tooling to the source and power supply, and start the waterproof test on the assembly line.
(Charging plug air tightness testing equipment)
The air tightness detector configured for the customer this time is Hai RuisiHPPioneer seriesAir tightness detector。
The Pioneer pioneering series is a very mature and stable instrument from Hairis Technology. Its convenient operation interface and economical and practical price-performance ratio have won praise in the market.The functions and performance parameters of the instrument can meet the needs of most customers.
◆ Highly sensitive pressure sensing and adjustment unit, combined with advanced differential pressure software algorithm, the minimum resolution can reach0.1Pa, this algorithm has obtained a national patent.
◆ Hairuisi's independently developed patented technology, "IVT pneumatic sealing valve island", greatly improves the test accuracy, ensures the stability of the instrument, and greatly improves the inflation speed.
◆ Full-touch intelligent operating system, graphical UI design based on the detection process, the operation interface is simple and clear, easy to teach and learn.
◆There are two pressure options, positive and negative.8 basic test modes, selectable and combined.
◆ Multiple communication interfaces: built-in RS232 serial port, RJ45 network port, USB communication interface, LTP external I/O control port, supporting multiple communication protocols.
◆ It has more than 100 groups of subroutines. Each group of subroutines can be programmed independently and can be selected or combined to meet various complex testing requirements.
◆ A variety of pressure adjustment components and ranges are optional, with a wide air pressure range (-80KPA&-1000KPa) optional.The optional electronic pressure regulating valve can realize multiple sets of pressure sequential tests.
◆ Ultra-high stability and ease of use have been rigorously tested by the market.
◆ A variety of accessories are available, including inflatable bypass, quick connector, and standard leak hole. At the same time, the instrument supports third-party calibration and can issue a calibration report.
