Integrated Back Door Handle with Elastic Cover
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Solution Overview
Problem
Current back door handle devices lack integration of a license lamp and handle switch with an elastic surface cover, leading to increased component numbers and manufacturing steps, which result in higher costs and larger sizes.
Innovation Solution
A back door handle device integrating a license lamp and handle switch with an outer cover featuring a transparent portion for light transmission and an elastic portion for waterproofing and operation, formed through integrally molded materials, reducing the number of components and assembly steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a license lamp and handle switch are integrated with separate components, then functionality is achieved, but the number of components and manufacturing steps increases, leading to higher cost and larger size
Solution Approach 1:
The patent merges the license lamp housing and handle switch housing into a single integrated housing structure. The license lamp is positioned in a first housing portion while the handle switch is positioned in a second housing portion, with both housings forming one unified component that reduces the total number of separate parts and assembly steps required for manufacturing.
Solution Approach 2:
The integrated housing serves multiple functions simultaneously: it provides structural support for both the license lamp and handle switch, acts as a mounting framework, and reduces overall component count. This multi-functional design eliminates the need for separate housings for each component, thereby reducing manufacturing complexity and cost.
2Device complexity
If a license lamp and handle switch are integrated with separate components, then functionality is achieved, but the overall size increases, occupying more space in the back door garnish
Solution Approach 1:
By combining the license lamp and handle switch into a single integrated assembly with shared housing structures, the patent reduces the total volume occupied in the back door garnish. The first and second housing portions are integrated into one unified structure, eliminating gaps and redundant spaces that would exist between separate components.
Solution Approach 2:
The patent employs a nested arrangement where the license lamp and handle switch are positioned within the same integrated housing structure. The switch housing is arranged adjacent to and integrated with the lamp housing, creating a compact nested configuration that minimizes the overall footprint and occupied space.
3Productivity
If multiple separate components are assembled, then functionality is achieved, but the number of manufacturing steps increases, causing higher cost
Solution Approach 1:
The patent merges the manufacturing process by creating a single integrated housing that can be produced as one piece or pre-assembled unit. This reduces the number of separate manufacturing steps required for producing individual housings, mounting brackets, and fastening components, thereby improving manufacturing efficiency and reducing labor costs.
Solution Approach 2:
The integrated housing is designed to be prepared in advance as a complete assembly unit, with all mounting features, fastening points, and component receptacles incorporated during the initial manufacturing stage. This preliminary integration eliminates the need for multiple subsequent assembly operations, reducing the total number of manufacturing steps and improving productivity.
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 integration of a license lamp and handle switch with an elastic surface cover reduces manufacturing costs and size, while enhancing waterproofing and operational efficiency.
Implementation Method 1
a transparent portion formed of a material that transmits light emitted from the light emitting element
Implementation Method 2
The transparent portion includes a lens portion configured to extract light emitted from the light emitting element
Implementation Method 3
an elastic portion formed of a material having elasticity and covering an outer side of the transparent portion. The elastic portion includes a switch cover portion that is a portion configured to be applied with a pushing force from an outside for outputting the signal from the switch
Data Source
AI summary
A back door handle device is provided above a license plate of a back door of a vehicle and serves as both a license lamp and a handle switch. The back door handle device includes a light emitting element, a switch that outputs a signal for unlocking or locking the back door, a housing that houses the light emitting element and the switch, and an outer cover that covers the housing and includes an integrally molded article. The integrally molded article includes a transparent portion formed of a material that transmits light emitted from the light emitting element, and an elastic portion covering an outer side of the transparent portion. The transparent portion includes a lens portion that extracts light emitted from the light emitting element. The elastic portion includes a switch cover portion that is applied with a pushing force from an outside for outputting the signal.