Motor Housing Structure With Separation Board for Vibration Isolation
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Solution Overview
Problem
Electrical vehicle motors experience structural instability due to high-frequency vibrations, leading to loosening and axis line shifting, and electronic control boards are susceptible to interference from electromagnetic devices, causing operational deficiencies and malfunctions.
Innovation Solution
A motor structure with a support and separation board sandwiched between casing members, which enhances structural strength by distributing vibrations and separates the electromagnetic device from the control board to reduce electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the electromagnetic device and transmission axle are directly mounted on the housing, then the motor structure is simplified, but the housing suffers loosening of fastening elements and positional shifting due to high-frequency vibration
Solution Approach 1:
The housing is segmented into a first casing member and a second casing member with a support board arranged between them. This segmentation allows the support board to act as an independent vibration-absorbing element, preventing vibration transmission to the fastening elements while maintaining the overall structural simplicity of the motor.
Solution Approach 2:
The support board serves as an intermediary element between the electromagnetic device/transmission axle and the housing. It absorbs and isolates high-frequency vibrations, preventing them from reaching the fastening elements and causing loosening, thus resolving the contradiction between structural simplicity and fastening stability.
2Productivity
If the electromagnetic device operates at high speed, then the motor productivity is improved, but high-frequency vibration causes axis line shifting and abrasion
Solution Approach 1:
The support board is pre-installed between the electromagnetic device/transmission axle and the housing before operation. It provides beforehand cushioning against high-frequency vibrations generated during high-speed operation, preventing axis line shifting and abrasion while allowing the motor to operate at high speeds for improved productivity.
3Device complexity
If the control board is placed inside the motor housing, then the motor structure is compact, but the electronic components are susceptible to electromagnetic interference
Solution Approach 1:
The control board is extracted from the interior space of the motor housing and mounted on the outer surface of the housing. This extraction removes the electronic components from the harmful electromagnetic field generated by the electromagnetic device, eliminating interference while maintaining the compact overall structure of the motor.
Solution Approach 2:
The housing itself serves as an intermediary barrier between the electromagnetic device and the control board. By mounting the control board on the outer surface, the housing structure provides natural electromagnetic shielding, protecting the electronic components from interference while keeping the system compact.
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 effectively reduces vibration-induced damage, stabilizes the motor structure, and protects electronic components from interference, enhancing operational safety and extending the motor's service life by preventing false operations.
Implementation Method 1
the support and separation board 15 is arranged between the first and second casing members 11, 12 as being sandwiched thereby... effectively enhances the structural strength and stability thereof in order to reduce events of loosening or axis line shifting and abrading resulting from vibration
Implementation Method 2
the support and separation board 15 is arranged between the first and second casing members 11, 12 as being sandwiched thereby... allows a control board to be properly protected to reduce interference of electronic components thereof by electrical waves or magnetism of an electromagnetic device
Data Source
AI summary
A motor structure includes a drive unit arranged in a housing to be oppositely connected to and fixedly mounted in the housing. The housing includes a first casing member and a second casing member connected together. A support and separation board is arranged and sandwiched between the first and second casing members to support the drive unit to mount thereon. The drive unit includes an electromagnetic device mounted to one side surface of the support and separation board, and a control board having a plurality of electronic components is arranged on one side surface of the support and separation board that is opposite to the electromagnetic device. As such, the structural strength is enhanced and vibration resulting from operation can be spread. The support and separation board separates the electromagnetic device and the control board from each other to reduce interference of the control board by the electromagnetic device.