Rivet type electrical contact assembly structure and machining method of electrical contact

Abstract

The invention discloses a rivet type electric contact assembly structure and a machining method of an electrical contact. The rivet type electrical contact assembly structure comprises an electromagnet base, an electromagnet, a movable contact spring fixing rod, an armature, a movable contact spring, a movable contact, a static contact spring, a static contact and a reset piece. The movable contact spring fixing rod is vertically installed on the electromagnet base, the upper end of the movable contact spring fixing rod is hinged to the armature, the electromagnet is installed on the electromagnet base, one end of the armature is connected with the electromagnet base through the reset piece, the movable contact spring is installed at the other end of the armature, the movable contact is arranged on the movable contact spring, and the static contact spring is arranged below the movable contact spring, and the static contact is arranged on one side, facing the moving contact, of the static contact spring; the movable contact is provided with an upper silver layer, the upper silver layer is obliquely distributed, the thickness of the upper silver layer is gradually decreased in the direction close to the movable contact spring fixing rod, the movable contact is provided with a lower silver layer corresponding to the upper silver layer, and the lower silver layer is obliquely distributed. The method has the advantages of simple machining mode, convenient debugging, stable product quality and low production cost.

Description

technical field [0001] The invention relates to the technical field of relay structures, in particular to a rivet-type electric contact assembly structure and a processing method for the electric contact. Background technique [0002] At present, due to the assembly accuracy problems of various relay assembly manufacturers, the contact parts of the working surface of the movable contact and the static contact of the assembled relay are edges. Due to the forming structure of the rivet electric contact, the edge of the working surface of the conventional structure electric contact The silver layer will be relatively thin, and the bonding force at the edge of the electrical contact is poor. Therefore, when the electrical appliance is working for a long time, the silver layer at the edge of the electrical contact will gradually be consumed, thereby gradually exposing the copper substrate, and the conductivity of the copper substrate Without the good conductivity of silver, the p...

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Problems solved by technology

[0002] At present, due to the assembly accuracy problems of various relay assembly manufacturers, the contact parts of the working surface of the movable contact and the static contact of the assembled relay are edges. Due to the forming structure of the rivet electric contact, the edge of the working surface of the conventional structure electric contact The silver layer will be relatively thin, and the bonding force at the edge of the electrical contact is poor. Therefore, when the electrical appliance is working for a long time, the silver layer at the edge of the electrical contact will gradually be consumed, thereby gradually exposing the copper substrate, and the conductivity of the copper substrate Without the good conductivity of silver, it will cause the performance of the relay to decline

On the other side, the silver layer in the non-contact direction may not be completely consumed after the contact fails, resulting in waste of silver material

At the same time, the problem of the poor bonding force of the silver layer on the edge of the electrical contact, the high temperature generated during the use of the relay will cause the edge silver layer to separate from the copper substrate, resulting in burning and adhesion of the moving contact and the static contact, resulting in The relay fails completely

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