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時(shí)間：2022-07-05| 作者：Admin
What indicators should be considered for a good waterproof connector? This issue is unavoidable for buyers. Below, we will provide a detailed introduction to what indicators should be considered for a high-quality connector.
When choosing high-quality waterproof connectors, the indicators to consider include the following 14 aspects:
1. Carrying capacity index
Usually, the current carrying capacity of the connector power signal needs to be derated, and attention should also be paid to the insulation and voltage resistance between the pins.
2. Impedance matching index
Some devices have impedance requirements for their signals, especially for RF signals, which require stricter impedance matching. When impedance mismatch occurs, it can cause signal reflection, thereby affecting signal transmission. Of course, general signal transmission does not have special requirements for the impedance of the connector.
3. Shielding index
With the rapid development of communication products, Electromagnetic compatibility has been paid more and more attention. The generally selected connector requires a metal shell, and the cable requires a shielding layer. The shielding layer should be connected to the metal shell of the connector to achieve shielding effect. Alternatively, the plug can be wrapped in copper sheet by injection molding, and the shielding layer of the cable can be welded together with the copper sheet.
4. Structure size index
In the production process of connectors, overall size design is a very important step, as the connected equipment will have certain spatial constraints, especially the connectors on the single board, which cannot interfere with other components. Therefore, it is necessary to choose appropriate installation methods (including front and rear installation, and installation and fixation methods including rivets, screws, circlips, or quick locking of the connector itself) and shapes (straight, curved, T-shaped, circular, and square) based on the usage space and installation location.
5. Anti Misinsertion Index
The anti misinsertion indicators of connectors are divided into two aspects. On the one hand, the connector itself rotates 180 degrees, which leads to incorrect signal connection. At this point, attention should be paid to selecting connectors that prevent accidental insertion as much as possible, or adjusting the relative position of the connectors to make the assembly unique. On the other hand, in order to reduce the variety of materials, several signals use the same connector, which may cause plug A to be inserted into plug B. It should be noted that if such a situation can cause serious consequences, then different types of sockets must be selected for the A and B interfaces.
6. Reliability indicators
Because the main function of waterproof connectors is to provide signal transmission performance for equipment, the connection part should be reliable (such as better surface contact than point contact, better needle hole type than leaf spring type, etc.).
7. Generality index
It should be noted that in the selection process of connectors, it is best to choose universal objects, especially between products of the same series. The selection of connectors has strong universality, which can reduce material types, increase quantity, reduce costs, and reduce supply risks.
8. Using environmental indicators
Usually, connectors have special performance requirements when used in outdoor, indoor, high temperature, high humidity, salt mist, moldy, cold, and other environments.
9. Locking function index
Generally speaking, in order to prevent the connector from falling off during docking with the device and ensure good contact performance, the connector needs to have a locking function.
10. Cost indicators
Cost is also a key factor in the selection process of connectors. With the increasingly fierce market competition, the cost of connectors themselves and processing costs need to be comprehensively considered.
11. Supply indicators
The supply of connectors is usually influenced by many factors, such as general connectors being better than non general connectors, and domestic connectors being better than foreign connectors.
12. Plugin lifespan indicators
The number of times a connector is inserted has a certain lifespan, and when the number of times a connector is inserted reaches its limit, the performance of the connector will decrease. Some signal interfaces need to pay more attention to the number of insertion times when selecting connectors.
13. Electrification index
Usually, pin or hole connectors can be selected based on normal charging and non charging conditions.
When choosing waterproof connector related products, there are various factors, so comprehensive consideration is the more reliable method. Choosing a more suitable connector will have varying degrees of impact on the product at different stages.
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