Motor Connection Plate Integrating Sensor Holder
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Solution Overview
Problem
Conventional electric motors require separate fastening devices and multiple components for sensor holders, leading to high detection tolerances and a complex structure, which increases the number of engine parts and material usage.
Innovation Solution
Integration of a connection plate with a receiving area and contacts for sensor placement, allowing the connection plate to serve as both a terminal for winding connections and a sensor holder, eliminating the need for separate fastening devices and reducing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate fastening devices and sensor holder components are used, then sensors can be securely mounted, but the structure becomes complex and the number of components increases
Solution Approach 1:
The connection plate is designed to integrate both the sensor holder function and the electrical connection function into a single component. The connection plate includes receiving areas for mounting sensors and contacts for electrical connections, eliminating the need for separate fastening devices and sensor holder components while maintaining secure sensor mounting and reliable electrical connectivity.
Solution Approach 2:
The connection plate serves multiple functions simultaneously: it acts as an electrical terminal for winding connections, a mounting plate for sensor fixation, and a structural support element. This multi-functionality reduces the total number of components required in the motor assembly while ensuring both mechanical security and electrical functionality.
2Reliability
If multiple separate components are used for sensor mounting, then secure fixation is achieved, but the number of engine parts increases
Solution Approach 1:
The connection plate combines the sensor holder and electrical terminal into one integrated component. The receiving areas on the connection plate provide secure mounting for sensors, while the contacts on the same plate establish electrical connections, thereby reducing the number of separate parts without compromising fixation reliability.
3Ease of manufacture
If sensors are positioned far from the stator, then easier assembly is achieved, but detection precision deteriorates
Solution Approach 1:
The connection plate extends in multiple directions with receiving areas positioned close to the stator for precise detection, while contacts are positioned at the edge for easy external connection. This spatial arrangement in different dimensions allows both precise sensor positioning near the stator and convenient external wiring without compromise.
4Device complexity
If the connection plate integrates both connection and sensor holder functions, then component count is reduced, but the plate design becomes more complex
Solution Approach 1:
The connection plate is divided into distinct functional areas: receiving areas for sensor mounting and contact areas for electrical connections. This segmentation of functions within the single plate structure allows for systematic design and manufacturing while reducing the overall component count. Each area can be independently optimized for its specific function.
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
This configuration simplifies the motor structure, minimizes sensor positioning tolerances, and reduces the number of motor components, enabling precise sensor placement and shorter connection lines, while protecting sensors and PCBs with the motor end shield.
Implementation Method 1
an electric motor with a Hall sensor unit for determining the position of the rotor magnets
Data Source
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AI summary
The invention relates to a connecting plate for an electric motor which is characterized in that it has at least one receptacle area (2) with at least one receptacle opening (8) for at least one sensor (22) for monitoring the rotor position. Furthermore, an electric motor (25) which has such a connecting plate (1) is described. With the present invention it is possible to simplify the manufacture of the electric motor (25), and in particular to minimize the length of the connecting lines to the sensors (22) by integrating the sensor holder (8, 11) into the connecting plate (1).