Motorized Window Shade Control Interface Suspension
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Solution Overview
Problem
Existing motorized window shades are costly to manufacture, making them unsuitable for lower-end products, and there is a need for a more economical solution that is still convenient to operate.
Innovation Solution
A motorized window shade design featuring a motorized actuating mechanism with a control interface suspended outside the head rail, using an electric motor and cable assembly to control the operation, which includes an elongated tube for protecting the cable and facilitating access to the control interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a motor and power source are disposed in a support structure mounted at the top of the window frame with a remote controller, then the window shade is convenient to operate, but the manufacture cost increases
Solution Approach 1:
The control interface is extracted from the head rail and suspended outward using an elongated tube, allowing the motor to be integrated within the head rail structure. This separation reduces manufacturing complexity and cost while preserving the convenience of operation, as the control interface remains accessible to the user.
Solution Approach 2:
An elongated tube is introduced as an intermediary element to suspend the control interface outside the head rail. This tube protects the cable assembly connecting the motor and control interface while enabling a simpler, more cost-effective integration of the motor within the head rail structure, thus reducing manufacture cost without compromising ease of operation.
2Reliability
If the control interface is suspended outside the head rail using an elongated tube with cable assembly routed through it, then the cable assembly is protected from damage, but the device complexity increases
Solution Approach 1:
The elongated tube serves multiple functions simultaneously: it protects the cable assembly from damage, suspends the control interface outside the head rail for accessibility, and provides a structured pathway for cable routing. By consolidating these functions into a single component, the patent reduces overall device complexity while achieving reliable cable protection.
Data Source
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AI summary
A motorized window shade includes a head rail, a bottom part suspended from the head rail, and a covering structure arranged between the head rail and the bottom part. An electric motor is arranged in the head rail and is operable to drive a vertical displacement of the bottom part. The window shade further includes a control interface electrically connected with the electric motor, and suspended outward from the head rail. The control interface is operable to control rotation of the electric motor for raising and lowering the bottom part. An elongated tube may further be disposed outside the head rail. The elongated tube has an upper end connected with the head rail, and the control interface is assembled adjacent to a lower end of the elongated tube.