DIRECT CURRENT RELAY

• Main Author: YANG JUNHYUK
• Format: Patent
• Language: English; Japanese
• Published: 20.04.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

PROBLEM TO BE SOLVED: To provide a direct current relay, capable of reducing noise by attenuating an impact generated between a fixed core and a movable core during an ON operation, and by attenuating an impact generated between a shaft and a plate during an OFF operation.SOLUTION: A direct current relay includes: a pair of fixed contacts 11 fixedly-installed at one side of a frame; a movable contact 12 installed below the pair of fixed contacts 11 so as to be linearly movable, and movable to contact or to be separated from the pair of fixed contacts 11; a plate 20 installed below the movable contact 12; a contact spring 30 provided between the movable contact 12 and the plate 20; a fixed core 40 installed at the plate 20, and including a center where a shaft hole 42 is formed in a penetrating manner; a movable core 45 installed below the fixed core 40 so as to be linearly movable; a shaft 50 including an upper end where a mounting portion 51 protruding to an upper side of the movable contact 12 is formed, and including a lower end coupled to the movable core 45; and a tension spring 35 installed between the movable contact 12 and the mounting portion 51.SELECTED DRAWING: Figure 1 【課題】オン動作時に固定コアと可動コア間で発生する衝撃とオフ動作時にシャフトとプレート間で発生する衝撃を緩和して騒音の発生を低減させた直流リレーを提供する。【解決手段】フレームの一側に固定設置される一対の固定接点１１と、一対の固定接点１１の下方に直線運動可能に設置されて一対の固定接点１１に接離する可動接点１２と、可動接点１２の下方に設置されるプレート２０と、可動接点１２とプレート２０間に備えられるコンタクトスプリング３０と、プレート２０に設置され、中心にシャフト孔４２が貫通形成される固定コア４０と、固定コア４０の下方に直線運動可能に設置される可動コア４５と、上端には可動接点１２の上方に突出する取付部５１が形成され、下端が可動コア４５に結合されるシャフト５０と、可動接点１２と取付部５１間に設置される引張スプリング３５とを含む。【選択図】図１