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Vacuum packaging machine of relay contact you can have what kind of type

2020/08/13
Vacuum packaging machine of relay contact which several types are there? Vacuum packaging machine relay is a kind of circuit switch control effect by using electromagnetic effect of components. No matter what type of relay, contact there are basically four types:



1, the dynamic contact: also called normally open contacts. Is composed of two pieces, don't contact at ordinary times, relay pull-up after they are closed.

2, vacuum packaging machine, relay static contact: also called normally closed electric shock. Two pieces of peacetime contact, the relay pull-up after separation.

3, switch contact: consists of three pieces. Usually a reed, and the above middle separated after the pull-up. After the relay pull-up, middle reed and reed on separate, and contact with the reed.

4, before and after the switch contacts, also consists of three pieces of reed. The difference between it and general cut explorers contacts, relay is static absorption after contact, and then closes the original two pieces of separation, to achieve the purpose of constantly switching circuit.



the relay contact vacuum packaging machine is what kind of type? Together we know about the gas vacuum packaging of mechanical and electronic magnetic relay what are the advantages and disadvantages? Master of packaging machinery and equipment components choose electromagnetic relay, more because of electromagnetic relay has the following advantages:

1, box packing machine, automatic packaging of mechanical and electronic magnetic relay thermal stability is good. - electric relay input some key parts The parameters of the coil is affected by temperature changes little, and good thermal stability.

2, switch resistance than the big. Reed contact closure at the time of the contact resistance is very small, about 0, 1 o ~ 0 parameters affected by temperature changes. 01, disconnect the insulation resistance is very large, more than 100 ohms, and switch resistance ratio ( The ratio of the insulation resistance and contact resistance) Compared with other types of relay.

3, automatic vacuum packaging mechanical and electrical magnetic relay load characteristic is good. This kind of relay are separate the input and output of two parts, the input circuit is not affected by changes in the load circuit.



4, power amplification coefficient. It can use tiny power directly control the power load.

5, strong interchangeability. The same type of relay parameters in tiny, switch in the circuit does not need to adjust.

6, for maintenance technical requirement is not high. The action of electromagnetic relay can be directly see, hear, so look for obstacles is more convenient. Usually have a multimeter after damage can be repaired with myself.

packing mechanical and electrical magnetic relays are the main disadvantages of: dust deposition on the contact easily, cause poor contact; Disconnect the electric inductive load circuit, which sparks between contact, cause the ablation or adhesion; Relay coil itself is inductive components, response to the current changes have certain inertia, a second action more than hundreds of times of circuit applications.
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