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2021-06-03
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What are the commonly used connectors? Influencing factors of connector performance
- Categories:FAQ
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- Time of issue:2021-06-03 18:30
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(Summary description)Connectors can be seen everywhere in life, and everyone knows them very well. But can you clearly enumerate the commonly used connectors? If not, you can find the connector classification information in this article. In addition, the rest of the article will analyze the influencing factors of connector performance, let's get to know it together.
What are the commonly used connectors? Influencing factors of connector performance
(Summary description)Connectors can be seen everywhere in life, and everyone knows them very well. But can you clearly enumerate the commonly used connectors? If not, you can find the connector classification information in this article. In addition, the rest of the article will analyze the influencing factors of connector performance, let's get to know it together.
- Categories:FAQ
- Author:
- Origin:
- Time of issue:2021-06-03 18:30
- Views:0
Information
Connectors can be seen everywhere in life, and everyone knows them very well. But can you clearly enumerate the commonly used connectors? If not, you can find the connector classification information in this article. In addition, the rest of the article will analyze the influencing factors of connector performance, let's get to know it together.
One, common connector
According to Baidu Encyclopedia's research data, the connector market is driven by the strong demand for consumer electronics, game consoles, MP3s, mobile phones, LCD TVs, digital cameras and other technological products, and the output and demand for connectors are increasing year by year. But most people are not familiar with this kind of auto parts, after all, the field is too professional. But it doesn't matter, today we will understand what the connector looks like from the commonly used scenes in life.
Today we mainly distinguish connectors from several sections, and then subdivide the role and application of connectors
distinguish from shape
1, strip/press type connector
2, circular connector
3, rectangular/heavy load connector
distinguished by function
1, computer equipment connector
2, video/audio signal connector
3, mobile phone connector
4, power connector
5, high voltage connector
6, car connector
7, aviation connector
8. Medical connector
distinguish from performance
1, high-speed signal linker
2, optical fiber connector
3, microwave connector
4, waterproof connector
5. High temperature resistant connector
Other divisions
1, five-pin connector
2, RF coaxial connector
3, PCB/printed circuit board connector
4, wire-to-wire connector
5, FFC/FPC/film cable connector
7, flat cable connector
According to this category, you should be able to distinguish the specific scenarios where the connector is applied.
2. Influencing factors of connector performance
The same object will have different technical performance in different environments. Therefore, to evaluate the quality of an object and see how much environmental conditions it can withstand is also an important indicator. For the connector, a component that is very familiar in the field of electronic engineering, it has been applied to all corners of our production and life. To meet the needs of applications in a variety of complex and harsh environments, its environmental performance is particularly important.
The environmental performance of the connector mainly includes the following items
(1) Temperature resistance
At present, the maximum working temperature of the connector (HRS connector) is 200oc (except for a few high-temperature special connectors), and the minimum temperature is -65oc. When the connector is working, the current generates heat at the contact point, which leads to a temperature rise. Therefore, it is generally considered that the working temperature should be equal to the sum of the ambient temperature and the contact temperature. In some specifications, the maximum temperature rise allowed by the connector under the rated operating current is clearly specified. The high temperature resistance of our VH3.96 connector can reach 750 degrees.
(2) Humidity resistance
The intrusion of moisture will affect the insulation performance of the connector (HRS connector) and corrode metal parts. Constant damp heat test conditions are relative humidity of 90%"95% (according to product specifications, up to 98%), temperature of +40±20oc, and test time of at least 96h according to product specifications. Alternating damp heat tests are more stringent.
(3) Salt spray resistance
When the connector (HRS connector) works in an environment containing moisture and salt, the metal structure and the surface treatment layer of the contact may produce galvanic corrosion, which affects the physical and electrical properties of the connector. In order to evaluate the ability of electrical connectors to withstand this environment, a salt spray test is specified. It is to hang the connector in a temperature-controlled test box, and spray out a sodium chloride solution of a specified concentration with compressed air to form a salt spray atmosphere. The exposure time is specified by the product specification and is at least 48h.
(4) Vibration and shock resistance
Vibration and shock resistance is an important performance of electrical connectors (HRS connectors). It is particularly important in special application environments such as aviation and aerospace, railway and road transportation. It is to test the robustness and electrical contact of the electrical connector’s mechanical structure. An important indicator of reliability. There are clear regulations in the relevant test methods. In the shock test, the peak acceleration, duration, and shock pulse waveform, as well as the interruption time of electrical continuity, shall be specified.
(5) Other environmental performance
According to the requirements of use, other environmental properties of electrical connectors (HRS connectors) include airtightness (air leakage, liquid pressure), liquid immersion (resistance to specific liquids) and low air pressure.
Because of different application objects and application environments, the shape and structure of the connectors are also different. But no matter what, the connector must be able to maintain the continuity and reliability of the current of the connected components. To achieve this goal, it is necessary to deeply analyze the environmental performance of the connector and apply the appropriate connector to the appropriate electronic equipment.
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