Clamping-stagnation-free magnetic steel temperature limiter

Abstract

The invention relates to a clamping-stagnation-free magnetic steel temperature limiter. The clamping-stagnation-free magnetic steel temperature limiter: comprises a small cup body; a soft magnetic support, which is installed on the inner side wall of the small cup body, wherein a soft magnet is arranged on the inner ring of the soft magnetic support; a hard magnetic support, which is installed on the side, away from the soft magnetic support, of the inner side wall of the small cup body, wherein a hard magnet is arranged on the inner ring of the hard magnetic support; and an inner spring, which is fixedly arranged between and connected with the soft magnetic support and the hard magnetic support. The inner spring is a conical spring and does not incline towards one side, the compression and bounce-off force of the inner spring is parallel, the suction and the release of the inner spring are smooth, and the suction surfaces of the soft magnet and the hard magnet are good, so optimal temperature transmission effect is ensured, and temperature sensing is accurate; and thus, the problems of dry burning and the like caused by early jump, clamping stagnation and late jump in cooking due to the hidden dangers of interference, clamping stagnation and up-and-down movement of a hard magnetic support assembly caused by inclination of the inner spring can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of temperature control elements, and more specifically, the invention relates to a non-snap magnetic steel temperature limiter. Background technique [0002] The magnetic steel temperature limiter is the core component of the mechanical rice cooker. It is used to control the cooking temperature. The heating plate is heated through the internal soft magnet and the magnetic hard magnet, and the heat is transferred to the magnetic steel temperature limiter through the heating plate. , the magnetic steel temperature limiter is affected by heat transfer, and the magnetism of the internal soft magnet changes according to the change of temperature. When the temperature rises to the point where the magnetism disappears, the soft magnet and the hard magnet separate and perform a tripping action, realizing the rice cooker from the cooking mode Automatically switch to heat preservation mode to complete the effect of au...

AI Technical Summary

Problems solved by technology

[0003] The inner spring of the existing magnetic steel temperature limiter is a straight spring, and the diameter of the inner spring is too much smaller than the diameter of the soft magnetic holder, which leads to poor matching between the inner spring and the soft magnetic holder. The height distance is different, one side is higher and the other is lower, and the strength is not parallel. The compression state of the inner spring is prone to overlap, and the strength of the inner spring is different, resulting in the failure to bounce or not smooth, high temperature causing late jumping or low temperature causing early jumping temperature Instability; when tripping, the force of the inner spring is not parallel, and the hard magnetic support and contact rod are tilted, resulting in interference, stagnation, and up and down movement, which will cause burnt rice in late jumping or burn out the rice cooker if it does not trip. question

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