2022-9-24 12:10:33
Pogo Pin waterproof design requirements
With the rapid development of electronic equipment, many intelligent devices have launched the purchase point of high-quality
waterproof Pogo pin is the connector of intelligent equipment, with waterproof function. The waterproof performance of high-quality and high-quality spring pin mainly depends on its power to understand the reason why high-quality spring pin is waterproof.
1. High quality spring needle high temperature resistance:
The current operating temperature of high quality spring needle is 200, low temperature is -65. Because the current will generate heat at the contact point when the connection works, causing heating, it is generally believed that the working temperature is equal to the sum of the ambient temperature and the contact heating. In some regulations, the allowable temperature rise of the connector below the rated operating current is specified.
2. High quality spring needle moisture-proof:
Moisture intrusion can affect connector insulation and erode metal components. Constant temperature and humidity test conditions are 90% ~ 95% relative humidity, temperature +40±20℃, test time according to product regulations, at least 96 hours. High quality
Pogo pin alternating wet heat test will be more rigorous.
3. High quality spring needle salt spray resistance:
When high quality spring needles work in an environment containing moisture and salt, the metal structure and contact surface treatment layer may undergo galvanic corrosion, which can affect the physical and electrical properties of connectors. In order to assess the ability of electrical connectors to withstand such environments, a salt spray test is prescribed, in which the connectors are suspended in a temperature-controlled test chamber and compressed air is sprayed with a prescribed concentration of sodium chloride solution to form a salt spray atmosphere. , its exposure time is determined by product specifications, at least 48 hours.
4. High quality spring needle vibration and impact resistance:
Vibration resistance and impact resistance of high quality spring pins are important properties of electrical connectors. It is particularly important in special use environments such as aerospace, rail and road transport. This involves testing the robustness and electrical contact of the electrical connectors. Important index of mechanical structure reliability. This will be specified in the relevant test methods. In the impact test, there is a specified acceleration, duration and impact pulse waveform and electrical continuous interruption time.
Background Technology:
1. The spring plunger (pogopin) commonly used in mobile phones, communications, automotive, lighting, medical, aerospace and other precision connection of electronic products, because of the spring plunger is a very fine probe, can do very little volume, used in precision connector can reduce the weight of the connector, save a space, beautification product exterior, etc., Therefore, it is used more and more.
2. However, current spring thimbles are not waterproof and the internal parts are prone to oxidation, which affects their service life.
Technical implementation elements:
3. In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model is clearly and completely described. Obviously, the described embodiments are part of the utility model, but not all of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative labor fall within the scope of protection of the utility model.
Technical summary
Cnomax Pogo Pin Factory provides a waterproof spring thimble that relates to the spring thimble technology field. The spring thimble comprises a housing, a cover plate, a probe and a spring; The shell is provided with a channel; The cover plate is connected with the bottom end of the shell; The probe is accommodated in the channel, and the upper half of the probe and the channel are sealed by a sealing ring; The top of the spring is connected with the lower half of the probe, and the bottom of the spring is in contact with the top surface of the cover plate to push the top of the probe out of the channel. In the utility model, the probe is under the action of the spring, so that the tip of the probe extends to the shell through the channel, and the basic function of the spring thimble is realized. The upper part of the probe and the channel are sealed by the sealing ring, which can effectively prevent the spring thimble from entering water, avoid the internal parts being oxidized and corrode, and improve the service life of the spring thimble.
The article comes from : https://www.pogo-pins.com/