The trip is a device mechanically connected or integrated with the circuit breaker to release the holding mechanism and automatically open the circuit breaker. With the development of scientific and technological personnel, there are various tripping devices on the market at present. CurrentlyofThe release includes a shell, a base, a yoke, a magnet, an armature, a push rod and an elastic part. The yoke isUIn the shape structure, one arm of the yoke is sleeved with a coil frame, and the other arm is sleeved with a fixing frame. The armature is transversely installed on the two arms of the yoke. One end of the armature is connected with the fixing frame through an elastic component. The magnetic steel is arranged between the two arms of the yoke, the magnetic field is more stable, and the release performance of the release device is better. The elastic component of the release device is installed on the fixing frame, but the fixing frame is usually made of elastic plastic material, the hook is installed on the base, and the installation structure is unstable. Under the action of the elastic element, the fixed frame is prone to slight deformation or displacement, resulting in a gap between the yoke and the armature, which affects the overall magnetic circuit and the tripping stability of the tripping device.

Technical implementation elements: In order to overcome the shortcomings of the background technology, the present invention provides a release device, which solves the problem of unstable magnetic circuit of the existing release device and affects the stability of the release. According to the technical solution adopted by the present invention, the release includes a shell, a base, a yoke, a magnet, an armature, a push rod and an elastic piece arranged in the shell; the yoke isuThe shape structure includes a first arm and a second arm, and the magnet is arranged between the first arm and the second arm of the yoke; the first arm is sleeved with a coil frame, the coil frame is wound on the coil frame, and the magnet is sheathed There is a fixed frame; the armature is transversely arranged at the upper end of the yoke, one end of the top rod is in linked contact with the armature, and the other end passes out of the shell; it also includes a metal armature bracket. The second arm is provided with a protruding riveting boss, the metal bracket is correspondingly provided with a riveting hole, and the second arm is riveted and matched with the metal bracket. The end of the armature is provided with a first connecting hole, the lower end of the metal bracket is bent to be provided with a second connecting hole corresponding to the first connecting hole, the elastic member is a tension spring, and the two ends of the tension spring are respectively connected with the first connecting hole and The second connecting hole is connected. Two sides of the armature are provided with first limit bosses, two second limit bosses are correspondingly provided on the upper end of the metal bracket, and a side of the first limit boss corresponding to the second limit boss forms an inclined surface structure. The fixed frame is provided with a fixed installation groove, and the fixed frame is sleeved outside the second arm of the magnetic yoke and the metal bracket through the fixed installation groove, and the metal bracket is made of copper material.

AboveThe advantage of the release is: adopting the above solution, the metal bracket and the yoke are fixed into an integrated structure, the elastic member is connected to the metal bracket, the metal bracket will not deviate, and the armature and the yoke will be kept in contact without a gap. Ensure the stability of the entire magnetic circuit, and the tripping stability of the release is good.