Motor Heat Dissipation Structure with Coupling Shell
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Solution Overview
Problem
Conventional DC brushless motor control boxes have poor heat dissipation, complex manufacturing, high costs, unattractive appearance, and limited universality due to their sealed structure and air vents.
Innovation Solution
A heat-dissipation structure comprising a motor shell, control box, and coupling shell with air vents on the coupling shell's side wall, a ventilation slot, and a convex plate, allowing for increased air circulation and a more attractive, flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air vents are arranged on the surface of aluminum-cast control boxes to increase air convection, then heat dissipation is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The invention divides the control box into modular components: a control box body, a separate heat dissipation plate with air vents, and a motor shell. The heat dissipation plate is detachably connected to the control box body, allowing the air vent structure to be independently manufactured and assembled. This segmentation resolves the manufacturing complexity by enabling standardized production of the heat dissipation plate separately from the control box body.
Solution Approach 2:
The heat dissipation plate serves as an intermediary component between the control box body and the motor shell. It provides the air vent function while being detachably connected to the control box body, allowing easy assembly and disassembly without requiring complex integrated molding. This intermediary structure simplifies manufacturing by separating the venting function from the main control box structure.
2Temperature
If air vents are arranged on the surface of aluminum-cast control boxes, then heat dissipation is improved, but manufacturing cost increases due to complex moulds
Solution Approach 1:
By segmenting the heat dissipation function into a separate detachable plate, the invention allows the air vents to be manufactured using simpler processes such as punching or laser cutting, rather than requiring complex integrated molding. This significantly reduces tooling costs and enables flexible production.
Solution Approach 2:
The invention changes the manufacturing approach from integrated casting with embedded vents to a modular assembly where the heat dissipation plate can be produced using cost-effective methods. The detachable design allows for parameter changes in the manufacturing process, enabling the use of lower-cost materials and simpler fabrication techniques for the vent structure.
3Temperature
If air vents are arranged along the circumferential direction of control box, then heat dissipation is improved, but appearance becomes unattractive
Solution Approach 1:
The heat dissipation plate is designed with air vents arranged in specific patterns that optimize heat dissipation while maintaining aesthetic appearance. The local arrangement of vents on the detachable plate allows for customized designs that balance functional requirements with visual appeal, rather than requiring circumferential vents that would compromise appearance.
4Reliability
If control box is sealed structure, then electronic components are protected, but heat dissipation effect deteriorates
Solution Approach 1:
The invention introduces a dynamic sealing solution where the heat dissipation plate can be detachably connected to the control box body. This allows the seal to be dynamic rather than static - sealed during operation for protection, and openable for maintenance or heat dissipation optimization. The detachable connection maintains reliability while enabling thermal management.
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 structure achieves rapid and effective heat dissipation, simplifies manufacturing, enhances appearance, and increases universality while reducing manufacturing costs.
Implementation Method 1
air vents are arranged on a side wall of the coupling shell
Implementation Method 2
electronic components mainly dissipate heat by contacting the inner wall of the control box
Data Source
AI summary
A heat-dissipation structure for a motor including a motor shell, a control box, and a coupling shell. One end of the coupling shell is connected to the bottom of the motor shell and the other end thereof is connected to the top of the control box and a plurality of air vents are arranged on a side wall of the coupling shell. The introduction of the coupling shell enlarges the inner space of the control box and achieves rapid heat dissipation and a better heat dissipation effect. The heat-dissipation structure features rapid heat dissipation, excellent heat dissipation effect, a simple structure, an attractive shape, and great universality.