Waterproof Motor with Segmented Sealed Chambers
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Solution Overview
Problem
Existing motor structures are prone to damage from humidity and dust due to inadequate structural design, leading to operational inefficiencies and increased manufacturing costs.
Innovation Solution
A waterproof and dustproof motor structure with independent tight chambers for the motor and circuit board, along with a silicon steel stator structure featuring independent poles and a driver circuit that includes an AC-to-DC converter, voltage and current detectors, and a controller for efficient motor control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional motor structure is used, then manufacturing cost is reduced, but motor is vulnerable to humidity and dust damage
Solution Approach 1:
The motor structure is divided into separate sealed chambers: a first sealed chamber housing the motor and a second sealed chamber housing the circuit board. Each chamber is independently sealed to prevent humidity and dust ingress, while maintaining structural organization and avoiding a single complex sealed enclosure.
2Reliability
If sealed chambers are added for waterproofing, then protection against humidity and dust is improved, but device complexity increases
Solution Approach 1:
The internal space is segmented into functional zones (motor chamber and circuit board chamber) with independent sealing, allowing targeted protection where needed while simplifying the overall sealing strategy compared to a fully enclosed complex structure.
Solution Approach 2:
The sealed chambers serve multiple functions: they provide waterproof and dustproof protection, organize internal components into functional zones, and enable independent maintenance or replacement of motor and circuit board assemblies.
3Stability of the object's composition
If independent poles with arched outer portions are used, then coil stability is improved, but manufacturing complexity increases
Solution Approach 1:
The arched outer portion of each pole provides a curved containment surface that naturally holds the coil in position through its geometric shape, eliminating the need for additional mechanical retaining structures and simplifying the manufacturing process.
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 motor operational efficiency, reduces manufacturing costs, and prevents damage from humidity and dust, while improving magnetic field generation efficiency and raw material usage.
Implementation Method 1
an AC-to-DC converter converting AC power supply into DC power supply
Implementation Method 2
a voltage detector detecting a voltage of the DC power supply
Implementation Method 3
a current detector detecting a current of the DC power supply
Implementation Method 4
a controller generating a driving signal for driving the motor according to the detected voltage and current
Implementation Method 5
a coil is wound on the radial portion
Implementation Method 6
a plurality of poles, covered with insulated plastic and corresponding to a plurality of magnetic poles
Data Source
AI summary
A motor structure is provided. The motor structure has: a motor; a circuit board including a driver circuit for controlling the motor; an upper shell; a base; a lower shell; an outlet, wherein wires of the circuit board is connected to the exterior of the motor structure through the outlet; a first tight chamber, formed by closing the upper shell and the base together, wherein the motor is disposed in the first tight chamber; and a second tight chamber, formed by closing the base and the lower shell together, wherein the circuit board is disposed in the second tight chamber.