Motor Bearing Support via Segmented Holder Design
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Solution Overview
Problem
Conventional motors fail to securely support bearings under axial loads, leading to reliability issues when transmitting power, especially in applications like brake systems where significant axial forces are applied.
Innovation Solution
The motor design includes a housing with a first receiving part and a holder that securely accommodates and supports a bearing, with the holder having a second receiving part and protruding parts to fix the bearing, and a coupling mechanism to enhance the structural integrity and stability, ensuring the bearing is adequately supported even under axial loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a groove in which the bearing is inserted is formed at the housing, then the bearing can be supported, but the bearing cannot be securely supported against axial load
Solution Approach 1:
The bearing support function is segmented between two components: the housing provides a first receiving part with a first protruding part that fixes one end of the bearing, and the holder provides a second receiving part with a second protruding part that fixes the other end of the bearing. This segmentation allows each component to contribute to bearing support while collectively providing secure axial load bearing capacity.
Solution Approach 2:
The holder acts as an intermediary component between the housing and the bearing. It includes a coupling part fixed to the housing and a second protruding part that fixes the other end of the bearing, thereby mediating the force transmission and providing stable bearing support against axial loads.
2Ease of manufacture
If the motor structure is simplified to reduce complexity, then manufacturing becomes easier, but bearing stability under axial load deteriorates
Solution Approach 1:
The holder serves multiple functions: it couples to the housing through a coupling part, supports the bearing through the second receiving part and second protruding part, and provides structural integrity against axial loads. This multi-functionality allows a single component to address multiple requirements without increasing overall system complexity.
Solution Approach 2:
Instead of forming complex internal structures within the housing to support the bearing, the solution inverts the approach by adding a separate holder component that provides the necessary support structure. This inversion simplifies the housing design while achieving the required bearing stability.
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 design effectively stabilizes the bearing, enhancing the motor's reliability and ability to withstand axial loads, thereby improving the motor's performance and longevity in applications with high axial forces.
Implementation Method 1
a bearing disposed between the first receiving part and the holder to support a rotation of the rotor
Implementation Method 2
The rotor is rotated by an electromagnetic interaction with the stator so as to transmit power to an outside
Data Source
AI summary
Disclosed is a motor including a housing having a first receiving part formed at one side thereof, a stator disposed in the housing, a rotor disposed in the housing, a rotating shaft rotated along with the rotor, a holder coupled to one side of the housing, and a bearing disposed between the first receiving part and the holder to support a rotation of the rotor.