| 摘要 |
PROBLEM TO BE SOLVED: To solve problems that an arc is generated by the bouncing of a moving contact when switching to a connection state and the life of the contact is shortened in a power source control relay using the restoring force of a spring. SOLUTION: Oscillation frequency of a vibration system constituted with a moving contact and a spring is increased by lightening the moving contact of the power source control relay, the bouncing is attenuated in a short time. Change of rush current with time generates a first crest 184 and a second crest 186, but by settling the bouncing as soon as possible, the amount of arc energy is reduced and the life of the contact is lengthened. Thereby, for example in the term of the second crest when the large rush current flows, since the moving contact comes in contact with a fixed contact, the arc is not generated between the contacts. |
