Brake shoe assembly, brake and elevator system

CN115594108BActive Publication Date: 2026-07-17OTIS ELEVATOR CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
OTIS ELEVATOR CO
Filing Date
2021-07-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing elevator brakes are difficult to meet the national standard requirements for dual-group electromechanical braking devices within the compact elevator structure, and it is also difficult to improve braking performance and reliability without changing other components.

Method used

The first and second stationary plates are set at an acute angle to each other to form an inclined fit, which increases the space for coil arrangement, ensures that the two sets of coils have the same magnetic flux, meets national standards, and improves electromagnetic force and reliability.

Benefits of technology

Without altering other components of the elevator system, the increased space for coil arrangement provides greater magnetic flux and electromagnetic force, improving the elevator's braking performance and reliability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN115594108B_ABST
    Figure CN115594108B_ABST
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Abstract

The application provides a brake static plate assembly, a brake and an elevator system. The brake static plate assembly comprises: a first static plate having: a first outer edge and a second outer edge which are adjacent; a first inner edge provided with a first shaft mounting notch; a first group of coils provided on a braking surface of the first static plate; a second static plate having: a third outer edge and a fourth outer edge which are adjacent; a second inner edge matched with the first inner edge and provided with a second shaft mounting notch which forms a shaft mounting hole of a driving shaft with the first shaft mounting notch; a second group of coils provided on a braking surface of the second static plate and having the same magnetic flux as the first group of coils; wherein the first inner edge forms an acute angle with the first outer edge and / or the second outer edge, and the second inner edge forms an acute angle with the third outer edge and / or the fourth outer edge. According to the technical scheme of the application, the compulsory requirements of the national standard are met, and other components of the existing elevator system can be adapted.
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