Elevator Brake Static Plate Layout for Compact Dual-Coil Braking
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Solution Overview
Problem
Elevator systems require multiple sets of electromechanical brake devices to ensure safety, but existing designs struggle to optimize space usage and maintain braking performance within compact structures while minimizing modifications to other components.
Innovation Solution
A brake static plate assembly featuring two inclined static plates with sets of coils arranged to maximize magnetic flux and electromagnetic force, allowing for efficient braking performance and reliability while adhering to national safety standards without significant changes to other system components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sets of electromechanical brake devices are provided to meet safety standards, then braking reliability is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent combines two sets of electromechanical brake devices into a single integrated brake assembly. The first and second static plates with their respective coil sets are merged into one compact structure, allowing dual braking systems to coexist in a unified design rather than as separate independent assemblies.
Solution Approach 2:
The patent employs a nested arrangement where the second static plate is positioned adjacent to and integrated with the first static plate. The coil sets are arranged in a compact configuration where components are nested within the available space, maximizing space utilization while maintaining the required dual-brake configuration.
2Power
If coil arrangement space is increased to improve braking performance, then electromagnetic force is enhanced, but the overall brake assembly size increases
Solution Approach 1:
The patent transitions from a single-plane coil arrangement to a three-dimensional configuration. The first and second coil sets are arranged in different spatial dimensions and orientations, allowing increased total coil surface area and magnetic flux generation without proportionally increasing the overall assembly footprint.
Solution Approach 2:
The patent applies different geometric configurations to different parts of the brake assembly. The first static plate has outer edges perpendicular to each other, while the second static plate has outer edges at acute angles. This local variation in geometry optimizes coil arrangement space in different regions, maximizing electromagnetic force generation within the available volume.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances braking performance and reliability by providing a larger coil arrangement space, meeting safety standards with reduced extra design space and minimal modifications, ensuring effective braking even if one set of coils fails.
Implementation Method 1
a first set of coils disposed on a braking surface of the first static plate; a second set of coils disposed on the braking surface of the second static plate, and magnetic flux of the second set of coils is the same as that of the first set of coils
Data Source
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AI summary
The invention provides a brake static plate assembly (100), a brake and an elevator system. The brake static plate assembly (100) comprises a first static plate (110) and a second static plate (120). The first static plate (110) has: a first outer edge (111) and a second outer edge (112) which are adjacent to each other; a first inner edge (113) provided with a first shaft mounting notch (1131) thereon; a first set of coils (114) disposed on a braking surface (115) of the first static plate (110). The second static plate (120) has: a third outer edge (121) and a fourth outer edge (122) which are adjacent to each other; the second inner edge (123) which is matched with the first inner edge (113) and is provided with a second shaft mounting notch (1231) which forms a shaft mounting hole of the drive shaft together with the first shaft mounting notch (1131); the second set of coils (124) are disposed on the braking surface (125) of the second static plate (120), and the magnetic flux of the second set of coils (124) is the same as that of the first set of coils (114). Wherein, the first inner edge (113) forms an acute angle with the first outer edge (111) and/or the second outer edge (112), and the second inner edge (123) forms an acute angle with the third outer edge (121) and/or the fourth outer edge (122). The technical schemes according to the present application not only meet the mandatory requirements of national standards, but also can be adapted to other components and parts of an existing elevator system.