With the rapid development of today's electronic technology, various electronic devices such as Desktop computer, laptops, smartphones, tablets or e-books are also gradually popularized in people's lives. Most of these electronic devices are equipped with multiple USB slots on the external chassis, and can plug the connector at one end of the corresponding transmission line into the USB slot, while the connector at the other end of the transmission line is electrically connected to the mouse, keyboard, screen Any peripheral device, such as Power bank or portable hard disk, can be electrically connected to the peripheral device for function expansion, charging or file transmission.

However, due to the fact that there are certain gaps between the general USB slot and the shell of the electronic device, when the surface of the electronic device's shell is stained with liquid or subjected to liquid splashing, the liquid will seep into the internal part of the electronic device through the seam between the USB slot and the shell, causing the operation of the electronic device to malfunction.

How to solve the problem of existing USB slots not having waterproof function is an urgent research and improvement direction for relevant manufacturers engaged in this industry.

During the process of testing the type-c waterproof base, it is necessary to comply with relevant Chinese standards and ensure that the allowable leakage cannot exceed 0.05KPa. During the testing process, it is necessary to maintain an intake time of 2 seconds, a stabilization time of 2 seconds, a testing time of 5 seconds, and an exhaust time of 1 second. The overall testing time should be controlled within 10 seconds. If the leakage value detected exceeds the standard, the alarm indicator light of the airtightness tester will light up, indicating that the USB connector manufacturer's product is not qualified. When the qualified rate of waterproof testing is lower than the standard requirements, the manufacturer needs to recheck the structural design and production process of the type-c waterproof base to further improve the waterproof and airtightness of the product.

When assembling the USB type-C connection base with waterproof function, first place the tongue plate 12 of the transmission element 1 into the holding space 20 through the first opening 21 of the waterproof sleeve 2, so that the two buckle blocks 23 of the waterproof sleeve 2 can be fixed to the buckle slots 111 on both sides of the base 11, and the two convex blocks 112 on both sides of the base 11 can also be placed into the two grooves 24 fixed to both sides of the waterproof sleeve 2, Thus, the base 11 of the transmission element 1 is installed and fixed at the first opening 21 of the waterproof sleeve 2. Then, the waterproof sleeve 2 is placed in the penetration space 30 of the shielding shell 3, so that the two buckle plates 31 of the shielding shell 3 are respectively placed in the inclined groove 25 and supported on the surface of the convex block 112, and multiple baffles 32 of the shielding shell 3 are also attached and blocked on the surface of the base 11. Therefore, the waterproof sleeve 2 is fixed in the penetration space 30 of the shielding shell 3. Then, a USB type-c connection base with waterproof function can be formed by using the transmission element 1, waterproof sleeve 2, and shielding shell 3 groups mentioned above.

Each type c waterproof base has an IP parameter during production, which refers to the level of waterproofing and dust prevention. The higher the value, the stronger its waterproof ability. When producing such products, USB connector manufacturers will use a sampling method to conduct waterproof and airtightness testing on the products, in order to determine their IP parameters. At present, the tool for detecting the waterproof and airtightness of type-c waterproof base is an airtightness detector. The water depth for waterproof detection is determined based on the IP value designed for the type-c waterproof base. For example, the IP67 standard test water depth should be 1 meter, and the pressure should be around 10kPa. However, in actual testing, the pressure will be appropriately increased to 15kPa. The specific detection steps are as follows: place the type-c waterproof base to be tested into the fixture, press the start button, the cylinder will automatically press down and tighten the sealing ring, while the side cylinder achieves sealing. Then, start the air tightness tester, and the instrument will automatically detect according to the set parameters. Once the detection time is up, the screen will display the leakage value of the tested product, and the alarm indicator light will indicate whether it is qualified. After the experiment, the cylinder automatically lifts and the operator takes out the product.

Several major features of type-c waterproof base:

1. It can provide various voltage and current specifications of power supply, with a limit value of up to 100W power.

2. Symmetrical connection, can be plugged in and out on both sides, and can withstand 10000 times of repeated plugging and unplugging.

3. High bandwidth, data transmission speed can reach up to 10Gbit/s, and its current specification is between 3A and 5A.

4. Flexible channel configuration for functional negotiation, such as determining the direction of interface insertion, negotiating the power supply function on the interface, Atermatic mode, and peripheral mode.

5. Supports non USB signal transmission, supports multiple OEM product customization modes, and can achieve non USB data transmission through type-c waterproof motherboard.

6. It is compatible and can connect different types of interfaces through a USB switch.

7. Small in size, compared to type-a and type-b, its thickness is thinner, which can greatly reduce the size of electronic products.

After the launch of the type-c waterproof base, it has attracted attention from various industries, and industry professionals believe that this new interface will bring a new pattern of electronic connection.