Pre-assembled Electromagnetic Brake with Spaced Friction Disk
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Solution Overview
Problem
Existing electric motor brakes lack sufficient safety features and efficient heat dissipation, leading to potential safety hazards and manufacturing complexities.
Innovation Solution
A pre-completed electromagnetically actuable brake design with a coil winding, movable lining carrier, and spring-loaded armature disk, utilizing a guide part with axial connections for easy assembly and enhanced safety, along with a friction disk spaced from the coil core for heat dissipation, and multiple brakes for increased torque application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake is designed as a pre-completed unit with friction disk spaced from coil core, then safety is improved through functional checks before assembly, but device complexity increases due to additional guide parts and connection areas
Solution Approach 1:
The brake is designed as a pre-completed unit with all components (coil core, friction disk, guide parts) assembled and functionally checked before final installation. This preliminary assembly and testing ensures safety and functionality are verified in advance, preventing potential failures during operation.
Solution Approach 2:
Guide parts with connection areas (external threads at one end, internal threads at the other) are introduced as intermediary components to detachably connect the coil core and friction disk while maintaining predetermined spacing. These guide parts facilitate easy assembly and disassembly while ensuring proper positioning and functional integrity.
2Ease of manufacture
If the brake is designed as a pre-completed unit with guide parts, then ease of manufacture is improved through modular assembly, but device complexity increases due to multiple connection areas and guide parts
Solution Approach 1:
The brake is segmented into distinct modular components: coil core, friction disk, and guide parts. Each component can be manufactured independently using standard machining processes, then assembled into a complete brake unit. This segmentation simplifies manufacturing by allowing specialized production of each part and easy replacement of individual components.
Solution Approach 2:
The guide parts serve multiple functions: they provide detachable connection between coil core and friction disk, maintain predetermined spacing, guide the armature disk in axial direction, and provide mounting points for other components. This multi-functionality reduces the need for separate specialized components.
3Temperature
If the friction disk is spaced from the coil core using guide part, then heat dissipation is improved, but device complexity increases due to additional spacing mechanism
Solution Approach 1:
The guide part acts as an intermediary spacing element between the coil core and friction disk, maintaining a predetermined distance that enables effective heat dissipation. The guide part's connection areas (external and internal threads) provide a simple yet effective spacing mechanism without requiring complex thermal management systems.
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 solution enhances safety by ensuring functional checks before assembly, simplifies manufacturing, and provides robust heat dissipation, increasing the overall safety and reliability of electric motor braking systems.
Implementation Method 1
the brake can be actuated electromagnetically and has a coil winding which is provided in a coil core
Implementation Method 2
an armature disk that can be acted upon by spring elements
Implementation Method 3
a friction disk, the guide part being detachably connected to the coil core and to the friction disk
Data Source
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AI summary
The invention relates to a brake, in particular a pre-assembled brake, for an electric motor, in the housing of which the brake can be arranged. The brake can be activated electromagnetically and comprises: a coil winding, which is provided in a coil core; a lining carrier, which can be arranged, in particular on a rotor shaft of the electric motor, in a form-fit manner in the circumferential direction by means of carrier teeth that can be provided on a rotor shaft of the electric motor and in a linearly movable manner, in particular in the rotor axial direction; an armature disk guided in the axial direction by at least one guide part, in particular an armature disk on which spring elements can act; and a friction disk. The guide part is detachably connected to the coil core and to the friction disk, in particular by means of threaded connections, and the friction disk is spaced by means of the guide part, in particular is thus fixed at a predefinable fixed distance from the coil body.