Magnetic latching relay

A magnetic latching relay comprising:

• a base, a magnetic circuit portion, a pushing card, a contact portion;
• the base is provided with a first blocking wall to divide the base into an upper cavity and a lower cavity, the magnetic circuit portion is installed in the upper cavity and the contact portion is installed in the lower cavity;
• the magnetic circuit portion comprising an iron core, two yokes, a magnetic steel, and an armature;
• the iron core is strip-shaped and arranged horizontally, and the two yokes are plate-shaped, wherein the two yokes are respectively fixed on both ends of the iron core, and the magnetic steel is matched in the middle of the iron core, so that the iron core, the two yokes and the magnetic steel are arranged to form an E-shaped magnetic conductive structure;
• the middle position of the armature is rotatably supported above the position corresponding to the magnetic steel, and each end of the armature is located above a top surface of respective one of the two yokes, so as to perform the seesaw type action in cooperation with the magnetic conductive structure;
• an upper end of the pushing card is connected to one end of the armature, and a lower end of the pushing card is connected to a free end of a movable spring of the contact portion;
• the iron core is arranged to extend along the length direction of the base, in the longitudinal direction of the base, a receiving groove of which an opening is configured to face the front and outside is provided on a front end of the base and the receiving groove is used to accommodate the pushing card, one end of the armature is configured to extend from above of the upper cavity to above of the receiving groove and connect to the upper end of the pushing card accommodated in the receiving groove;
• the bottom of the receiving groove is configured to communicate with the lower cavity so that the lower end of the pushing card accommodated in the receiving groove is connected to a free end of the movable spring of the contact portion in the lower cavity;
• wherein both sides of a front end and a rear end of the upper cavity are respectively provided with notches for assembling the magnetic circuit portion to achieve positioning;
• dispensing gates are respectively provided on both sides of the receiving groove to fix the magnetic circuit portion when the magnetic circuit portion is inserted into the upper cavity and the clamping force is insufficient.

A magnetic latching relay comprising:

• a base, a magnetic circuit portion, a pushing card, a contact portion;
• the base is provided with a first blocking wall to divide the base into an upper cavity and a lower cavity, the magnetic circuit portion is installed in the upper cavity and the contact portion is installed in the lower cavity;
• the magnetic circuit portion comprising an iron core, two yokes, a magnetic steel, and an armature;
• the iron core is strip-shaped and arranged horizontally, and the two yokes are plate-shaped, wherein the two yokes are respectively fixed on both ends of the iron core, and the magnetic steel is matched in the middle of the iron core, so that the iron core, the two yokes and the magnetic steel are arranged to form an E-shaped magnetic conductive structure;
• the middle position of the armature is rotatably supported above the position corresponding to the magnetic steel, and each end of the armature is located above a top surface of respective one of the two yokes, so as to perform the seesaw type action in cooperation with the magnetic conductive structure;
• an upper end of the pushing card is connected to one end of the armature, and a lower end of the pushing card is connected to a free end of a movable spring of the contact portion;
• the pushing card is provided with two connecting arms with a certain distance therebetween and a certain length, the two connecting arms are formed by an upper portion of the pushing card protruding upwards, so that the two connecting arms can be flexibly expanded to make two sides of the armature in the width direction be snapped between the two connecting arms, and realizing that when the armature swings up and down, the pushing card is driven to move up and down;
• wherein a lower portion of the pushing card is provided with a substantially rectangular through hole, and an end of the movable spring provided with a movable contact is movably hooked in the through hole of the lower portion of the pushing card, when the pushing card moves up and down, the end of the movable spring with the movable contact swings up and down;
• an upper hole wall and a lower hole wall of the through hole of the pushing card are respectively arranged in a shape of a circular arc surface, so that when the pushing card moves, the pushing card and the movable spring come into line-to-surface contact, a distance between the upper hole wall and the lower hole wall of the through hole is greater than a thickness of the end of the movable spring where the movable contact is provided.