Power Trunk Driving Module Base Plate Removal
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Solution Overview
Problem
Existing power trunk modules require complex and time-consuming assembly processes, are heavy, and costly due to the need for a fixed base plate and multiple mounting points, making them difficult to install and increasing personnel expenses.
Innovation Solution
A driving module for a power trunk that eliminates the need for a fixed base plate by using a pivotable main arm to open and close the trunk lid, with a motor installed on the main arm, and a sub arm linked to the main arm, allowing for simplified assembly and reduced weight by eliminating the base plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed base plate with three mounting points is used to support the motor and lid hinge, then the structural stability is improved, but the assembly complexity and installation time increase significantly
Solution Approach 1:
The base plate is extracted and removed from the system. Instead of using a separate base plate with three mounting points, the motor is directly mounted to the vehicle body at a single location, eliminating the base plate component and simplifying the assembly process while maintaining structural stability through direct mounting.
Solution Approach 2:
The functions of the base plate (supporting motor and lid hinge) are merged into the vehicle body structure itself. The vehicle body serves as the mounting structure, eliminating the need for a separate base plate and reducing the number of components and assembly steps.
2Stability of the object's composition
If a fixed base plate is used to support the motor, then the motor mounting stability is improved, but the overall weight of the power trunk module increases
Solution Approach 1:
The base plate is extracted and removed from the system. The motor is directly mounted to the vehicle body without requiring a separate base plate, thereby eliminating the weight of the base plate component while maintaining motor mounting stability through direct attachment to the vehicle body structure.
3Reliability
If multiple constituent elements and assembly operations are required, then the installation reliability is improved, but the installation time and personnel costs increase
Solution Approach 1:
The base plate and its associated mounting operations are extracted and removed. The motor is directly mounted to the vehicle body in a single operation, reducing the number of assembly steps from three separate processes to one straightforward mounting operation, thereby reducing installation time while maintaining reliability through direct mounting.
4Weight of stationary object
If a pivotable main arm with motor directly mounted is used instead of a fixed base plate, then the weight and assembly complexity are reduced, but the structural stability may be compromised
Solution Approach 1:
The system transitions from a static base plate structure to a dynamic pivotable main arm structure. The main arm can pivot to accommodate the opening and closing motion of the trunk lid, providing the necessary movement while maintaining structural stability through its pivotable connection to the vehicle body and its integration with the motor mounting.
Data Source
AI summary
A driving module of a motor-driven power trunk includes a pivotable lid hinge configured to open or close the trunk lid. A main arm is pivotably installed in a vehicle body. A sub arm constrains the lid hinge and is linked to the main arm. A motor is provided on the main arm and is configured to pivot the main arm and the sub arm so as to automatically open or close the trunk lid.