The automobile industry is in a period of continued prosperity. Just as the mechanical structures in traditional automobiles are being replaced by a large number of electronic components, more and more automobile products use electronic components. The innovation of the automobile industry has given the electronics industry greater room for development.
Water is very harmful to electronic components, often causing corrosion of circuit boards or components and short circuits between components.Therefore, attention must be paid to waterproofing and not allowing water to enter the electronic components.In order to ensure the safe use of electronic components, manufacturers usually need to conduct waterproof testing on electronic components.Manufacturers generally use waterproof testing equipment to conduct waterproof testing of electronic components.
Take the following electronic component as an example. This product is an electronic component made of plastic.There are connecting wires around the product and four points on the product that require tightening screws. These places are the most difficult points to seal. In order to ensure good sealing performance of the product, the entire product needs to be inspected.Air tightness testing。
For this kind of finished product, and the product does not have any inflatable port, Hirays usually implements indirect testing of waterproofing by custom-making a similar mold for the product.The picture below shows the mold made by Hirays Technology for this product. There will be sealing rings around the upper and lower molds. The sealing rings have two functions. On the one hand, they protect the product, and on the other hand, they better seal the upper and lower molds.When the upper and lower molds are sealed, the product in the mold is in a completely sealed space. The Hirays waterproof detector fills the mold with a certain amount of compressed air through the trachea. When the inflation time is reached, the instrument cuts off the inflation. We can intuitively see the pressure in the mold on our air tightness detector equipment.The air pressure of the compressed air changes. The space in the mold is fixed and the air pressure is fixed. If the air pressure in the mold changes very little, it means that the test product in the mold is well sealed. If the air pressure in the mold continues to decrease, it means that the test product is leaking, causing the compressed air in the mold to leak into the test product.This is the principle of air tightness testing.
According to customer requirements, the test level is IP68. There is currently no clear standard definition of IP68. Basically, as long as the test strength exceeds waterproof level 7 and the product successfully passes the test, it can be said that its waterproof level reaches IP68 level.In practical applications, it is a parameter that exceeds IP7 as agreed upon by you and the customer.
Based on the customer's products and multiple waterproof tests, the customer's test parameters are as follows:
Test pressure: 50kpa Air intake lower limit: 49kpa
Leakage limit: 0.1kpa Inflation time: 5S
Voltage stabilization time: 10S Test time: 5S
Through multiple test parameters, we know that the time to test a product is 20S, and 3 products can be tested in one minute. This test speed can keep up with the customer's production speed.If the production efficiency of the customer's products is improved, in addition to adding multiple air tightness testing equipment, Hirays can also customize dual-channel, three-channel, and four-channel waterproof testing equipment as non-standard.
After setting the test parameters on the air tightness testing equipment, the operator can start the test by placing the test product into the mold. After the test is completed,Air tightness detector(also called a waterproof tester) will automatically determine whether the product is OK or NG according to the set test parameters. For products tested as NG, the operator must take them out for further waterproofing treatment or inspection.
With the widespread application of electronic products in automobiles, Hirays has made waterproof testing equipment for many auto parts and automotive electronic products, and has accumulated thousands of cases. It is easy to operate and has mature technology. If you need waterproof testing equipment for your car accessories or related electronic components, please call Hirays Technology.[This article was edited and published by Hirays (http://www.Hirays.cn/) Please indicate the source for reprinting]
