Use ceramic seal technical dc contactor

Publisher： Apollo / 2021-07-12/ Views：1089

Previous dc contactor is the key to using laminated glass and epoxy resin as rubber sealing material, according to the properties of plastic, have very good effect on sealing performance. In recent years, with the enterprise to new scientific research developed a new type of dc contactor is dominated by the material of the sealing technology, cross the previous raw material in every field, and makes the layers of dc contactor properties are improved greatly. Its advantages embodied in terms of volume, use time and net weight. Improvement of ceramic seal technology dc contactor because compared with laminated glass ceramic is more excellent compressive strength, the application level of raw materials can be greatly reduced, and the volume is also associated with a reduction in raw materials. Through a technical improvement, and ceramics under the same volume of ceramic net weight also far lower than the types of glass, contactor's overall net weight drops. Ceramic firing of ceramic on the compressive strength and corrosion resistant ability is greatly improved, because of its traditional epoxy resin adhesive, so the natural life for its corrosion-proof. Introduced the structure of the dc contactor.

Intermediate dc relay contactor and car the main difference is that a disconnect between load condition.

1. Communication is used to contact with high working voltage, high current or both of the load type. Commonly used in according to more than 15 amps or more than 3 kw load machine equipment.

(2) for the total number of less, using gm relay.

To explore the application of dc contactor.

Ordinary manufacturer to get on and off resistor factory Settings, people on the basis of this value to long-term burning all contact entity model evaluation. In fact is need people to discuss carefully, actual contact temperature exactly how much money? To warehouse body contact heating very is outside the state of the sealing structure is dangerous? In fact, size, material and contact state of contact for the following features may cause a lot of damage.

Dc contactor must design scheme of electric actuators are larger contact switch, so there must be many relative larger magnetic coil, a magnetic ring in the entire process of starting and maintaining, the need to consume large amounts of current. All in all, smaller permanent magnets used in the automobile relay, don't need too much current is very easy to transform.

When considering the different ac contactor, must to evaluate magnetic ring features, especially the working voltage characteristics, starting current and keep current, must be considered when people around in the design of PWM bridge the problem.