Removable Battery Case Pressing Mechanism for Straddle-Type Vehicles
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Solution Overview
Problem
Straddle-type vehicles with battery packs face design restrictions due to the need for a case cover that must prevent foreign matter entry while supporting the battery pack, limiting the degree of freedom in design and potentially allowing battery pack movement.
Innovation Solution
A straddle-type vehicle design incorporating a battery case with a pressing mechanism that includes an abutting member and a retainer to hold the abutting member against the battery pack, allowing for improved design flexibility while preventing battery pack movement, and a lid body connected via the pressing mechanism to open and close the battery case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the case cover is designed to function as both a case lid and a support body for the spring, then the structure is restricted and design freedom is reduced, but the battery pack can be prevented from moving
Solution Approach 1:
The invention divides the case cover into two separate functional components: a lid body that opens and closes the battery case opening, and a pressing mechanism (including the retainer and abutting member) that independently presses the battery pack. This segmentation allows the lid body to focus on sealing without bearing pressing reaction forces, improving design freedom while the dedicated pressing mechanism ensures battery pack stability.
2Reliability
If the lid body bears the pressing reaction force, then the battery pack is secured, but the lid body structure must be complex and design freedom is reduced
Solution Approach 1:
The invention extracts the pressing function from the lid body and places it in a separate pressing mechanism. The retainer and abutting member constitute this dedicated pressing mechanism that bears the pressing reaction force, while the lid body is relieved of this function and can be designed more simply for its primary purpose of opening and closing the battery case.
3Ease of manufacture
If the case cover structure is simplified to improve design freedom, then manufacturing becomes easier, but the ability to prevent battery pack movement is reduced
Solution Approach 1:
The invention introduces a retainer as an intermediary component that connects the lid body to the abutting member. The retainer holds the abutting member in position and transmits the pressing force to the battery pack, while allowing the lid body to remain structurally simple. This intermediary enables the lid body to be manufactured easily while still ensuring reliable battery pack securing through the dedicated pressing mechanism.
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 solution enhances design freedom by allowing the lid body to focus on preventing water entry without considering pressing reaction forces, while protecting the pressing mechanism from foreign matter and facilitating battery pack attachment and detachment.
Implementation Method 1
a retainer that holds the abutting member abutting the battery pack while pressing the abutting member toward the battery pack
Data Source
AI summary
There is provided a straddle-type vehicle including: a battery case having an accommodation space that accommodates a battery pack and an opening for attaching and detaching the battery pack via the opening that opens the accommodation space; a pressing mechanism including an abutting member capable of abutting the battery pack in a state where the battery pack is accommodated in the accommodation space of the battery case, and a retainer that holds the abutting member abutting the battery pack while pressing the abutting member toward the battery pack; and a lid body connected to the battery case via the pressing mechanism and that opens and closes the opening of the battery case.