Sunroof Solar Power Transmission via Segmented Spring Assemblies
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Solution Overview
Problem
Existing power transmission systems for vehicle sunroofs that incorporate solar cells restrict the movement of the sunroof glass, limiting the full utilization of solar energy conversion and the commercial value of the vehicle.
Innovation Solution
A power transmission apparatus comprising upper and lower transmission assemblies with springs and brackets that allow for the transmission of power regardless of the sunroof glass's open or closed state, enabling free sliding and reducing spark risk through a spring pad contact mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a power transmission system is installed on the sunroof glass to transmit power generated by solar cells, then power transmission capability is improved, but the movement freedom of the sunroof glass deteriorates
Solution Approach 1:
The power transmission system is divided into multiple discrete components: upper transmission assemblies fixed to the support panel, lower transmission assemblies coupled to the sunroof rails, and spring elements. This segmentation allows each component to perform its specific function while collectively enabling full sunroof movement capability.
Solution Approach 2:
The patent transitions from direct rigid connection to spring-based elastic connection, adding a dimensional element of flexibility and movement accommodation. The spring elements allow the power transmission system to operate in multiple positions (open, closed, and intermediate states) by accommodating movement in the vertical dimension.
2Ease of operation
If the sunroof glass is allowed to slide freely for full movement capability, then ease of operation is improved, but reliable power transmission deteriorates
Solution Approach 1:
The system employs dynamic spring elements that automatically adjust their contact state based on the sunroof position. The springs provide continuous mechanical contact for reliable power transmission when the sunroof is closed or partially open, while allowing complete movement freedom when fully open, thus adapting to different operational states.
Solution Approach 2:
Spring elements serve as intermediary components between the fixed upper transmission assemblies and the moving lower transmission assemblies. These springs maintain reliable electrical and mechanical contact during movement, acting as a mediator that ensures continuous power transmission while accommodating the full range of sunroof motion.
3Use of energy by moving object
If solar cells are installed on the sunroof glass to convert solar energy, then energy generation capability is improved, but the commercial value and full utilization deteriorate due to movement restrictions
Solution Approach 1:
The power transmission system is designed to support solar cells in multiple operational states - whether the sunroof is open, closed, or in intermediate positions. This multi-functionality ensures that solar cells can continuously generate and transmit power regardless of the sunroof's position, maximizing their utilization and the vehicle's commercial value.
Solution Approach 2:
The spring-based transmission system ensures continuous power transmission from the solar cells to the vehicle's electrical system throughout the entire range of sunroof motion. The springs maintain constant mechanical and electrical contact, eliminating interruptions in power generation and transmission, thus ensuring continuous useful action of the solar cells.
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
Enables the full utilization of solar cells as a power source for vehicles while maintaining the sunroof glass's free sliding functionality, enhancing the vehicle's commercial value by providing a reliable power transmission system.
Implementation Method 1
a spring pad that is fitted on the first lower spring and comes into contact with the upper transmission assembly as the sunroof glass closes
Data Source
AI summary
A power transmission apparatus of a vehicle sunroof which uses a solar cell includes a sunroof glass that is slidably disposed on the roof of a vehicle, opens and closes an opening, and has a solar cell; upper transmission assemblies coupled to a support panel disposed around the sunroof glass and connected with the solar cell with a wire; first lower transmission assemblies that are coupled to the front portions of sunroof rails, disposed at both sides of the opening and come in contact with the upper transmission assemblies when the sunroof glass closes; and second lower transmission assemblies that are coupled to the rear portions of the sunroof rails and come in contact with the upper transmission assemblies when the sunroof glass opens. Accordingly, the apparatus can transmit power when the sunroof glass is both open and closed.