Motor elastic sheet with limiting structure, motor, camera and electronic device

By setting a limiting structure on the outer edge of the motor spring ring base plate, the problems of frictional resistance and stress transmission during assembly are solved, realizing a high-precision, long-life motor component design that adapts to housing deformation and improves assembly yield and performance stability.

CN224343073UActive Publication Date: 2026-06-09HUIZHOU YOUHUA MICROELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU YOUHUA MICROELECTRONICS TECH
Filing Date
2025-06-20
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

During the assembly process, the existing motor spring sheet suffers from nonlinear increase in frictional resistance, uncontrolled stress transmission, and loss of self-adaptive capability due to housing deformation, which affects assembly yield and service life.

Method used

A limiting structure is set on the outer edge of the annular substrate to form point contact or line contact. The protrusion design takes priority in bearing the assembly stress. The pressure is evenly distributed by the interval distribution and polygonal cross-section design. Combined with the radial gap and groove avoidance structure, adaptive adjustment and stable positioning are achieved.

Benefits of technology

It significantly reduces frictional resistance, improves assembly accuracy and lifespan, reduces material waste, enhances manufacturing yield and performance stability, and adapts to positioning accuracy in complex environments.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224343073U_ABST
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Abstract

This utility model relates to a motor spring with a limiting structure, a motor, a camera, and electronic equipment. The motor spring includes an annular base plate, and the outer edge of the annular base plate has at least one outwardly protruding limiting structure. This utility model provides a motor spring with a limiting structure, a motor, a camera, and electronic equipment, which has advantages such as resistance to housing deformation, prevention of material jamming, and long service life. By setting a protruding limiting structure on the outer edge, the motor spring forms point or line contact with the housing during assembly, rather than surface contact, significantly reducing frictional resistance caused by housing deformation. The protruding design preferentially bears assembly stress, avoiding overall deformation of the annular base plate, thereby significantly reducing the risk of material jamming and improving assembly accuracy. Simultaneously, it reduces permanent deformation caused by localized material yielding, extending the service life of the motor spring.
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