Drive device for electric curtain
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Solution Overview
Problem
Existing drive devices for electric curtains face safety hazards due to aluminum scraps causing short-circuiting and poor aesthetics from material inconsistencies and section differences, leading to after-sales problems and potential safety risks.
Innovation Solution
A drive device featuring an integrally-formed plastic housing with a drawer frame supporting the motor and control board, eliminating aluminum scraps and ensuring a seamless, color-matched external structure, along with a vibration-damping mechanism to enhance stability and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If an aluminum alloy profile is used for the housing, then the structural strength is improved, but aluminum scraps cause short-circuiting and safety hazards
Solution Approach 1:
The patent extracts and removes the harmful aluminum scraps from the housing structure by replacing the aluminum alloy profile with a plastic housing. This eliminates the source of short-circuiting and safety hazards while maintaining the housing's structural function through alternative materials and design.
Solution Approach 2:
The patent uses a plastic housing that can be easily manufactured and replaced if needed, rather than relying on durable aluminum that generates harmful scraps. The plastic housing provides sufficient strength for the application while eliminating the safety issues associated with aluminum processing remnants.
2Ease of manufacture
If plastic covers are connected to both ends of the aluminum profile, then the housing structure is completed, but section differences and color differences generate poor external aesthetics
Solution Approach 1:
The patent merges the housing into a single integrally-formed plastic structure, eliminating the need to connect separate plastic covers to an aluminum profile. This unified structure removes all section joints and eliminates color differences between components, achieving consistent external aesthetics while maintaining ease of manufacture through integral molding.
Solution Approach 2:
The patent transitions from a composite structure of aluminum profile with plastic end covers to a homogeneous plastic housing structure. This material unification eliminates the visual discontinuities and color mismatches that occurred at the junctions between different materials, providing seamless external appearance.
3Ease of manufacture
If the aluminum profile is vertically cut, then the housing is assembled, but protrusions at the cut create scratching risks
Solution Approach 1:
The patent removes the vertically-cut aluminum profile from the housing structure entirely and replaces it with an integrally-formed plastic housing. This eliminates the protrusions created by cutting operations, removing the scratching hazard while preserving the housing's assembly functionality through alternative manufacturing methods.
4Device complexity
If inconsistent materials are used for the housing, then the structure is simplified, but color differences are highlighted after use
Solution Approach 1:
The patent applies homogeneity by using a single plastic material throughout the entire housing structure, eliminating the material inconsistencies between aluminum profile and plastic end covers. This uniform material composition ensures consistent color and appearance throughout the housing, preventing color differences from developing during use while maintaining structural simplicity.
Data Source
AI summary
A drive device for an electric curtain is provided which comprises an integrally-formed plastic housing and a drawer frame which is disposed in the plastic housing; a drive motor and a control board are mounted on the drawer frame; in the drive device of the present invention, the integrally-formed plastic housing replaces the existing aluminum profile to solve the safety problems of short circuiting, electric conduction and firing due to aluminum scraps left in the housing; such that the entire external structure of the drive device has no section difference and color difference, and there is no broken joint formed at the connection with the plastic end cover, satisfying the market requirements. Furthermore, in the drive device, the drawer frame is slidably disposed in the plastic housing and the drive motor and the control board are supported on the drawer frame, facilitating device assembly and production efficiency.