Battery Case Lever Mechanism for Labor-Saving Removal
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Solution Overview
Problem
Conventional battery cases require users to apply force equal to the battery's weight and limit the application of force through specific openings, making it laborious and inconvenient to withdraw the battery.
Innovation Solution
A battery case structure featuring a housing with a shaft and lever mechanism, allowing the battery to be withdrawn easily by applying force on the lever's main body, which rotates to drive the battery out through a first opening, eliminating the need to touch the battery through elongated openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conventional battery case includes two elongated openings on opposite sides for battery withdrawal, then the battery can be removed from the case, but the user needs to apply force equal to the battery's weight and touch the battery through limited openings, making the operation laborious and inconvenient
Solution Approach 1:
The patent introduces a lever mechanism as an intermediary between the user's hand and the battery. The lever includes a first arm with a main body and extension portion, and a second arm that contacts the battery. When the user applies force to the main body of the first arm through the second opening, the lever rotates around the shaft, amplifying the force and translating it to the second arm that pushes the battery out through the first opening. This mediator (lever) eliminates the need for the user to directly touch the battery through elongated openings and reduces the required force.
Solution Approach 2:
The lever mechanism allows the user to apply force at a distance from the battery (at the main body of the first arm) rather than directly on the battery. The extension portion of the first arm extends toward the accommodation space but the user applies force at the main body, which is positioned away from the battery. This partial action at a different location is amplified by the lever to achieve the excessive force needed to overcome battery weight and friction.
2Ease of operation
If the user must touch the battery through elongated openings to withdraw it, then the battery can be gripped and moved, but the position and angle of the applied force are limited, making battery withdrawal difficult
Solution Approach 1:
The lever mechanism serves as an intermediary that decouples the user's hand position from the battery position. The user can apply force at the main body of the first arm through the second opening, which is accessible from the outside of the battery case. The lever rotates around the shaft and transmits this force to the second arm that contacts the battery. This intermediary structure provides flexibility in force application position and angle, as the user can push on the main body from various directions through the second opening without needing to directly access the battery through restrictive elongated openings.
3Productivity
If conventional battery cases use elongated openings for battery access, then the battery can be inserted and removed, but the openings restrict the user's ability to apply force at optimal positions and angles
Solution Approach 1:
The lever mechanism with its main body and arms acts as an intermediary that improves both productivity and ease of operation. The user applies force to the main body of the first arm through the second opening, which is more accessible than elongated openings. The lever rotates around the shaft and quickly translates this force to the second arm, which pushes the battery out through the first opening. This intermediary mechanism allows for faster battery replacement (improved productivity) while maintaining convenience in force application (improved ease of operation), as the user does not need to contort their hand through restrictive openings.
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 design simplifies the battery removal process, making it labor-saving and convenient by allowing users to apply force directly on the lever's main body, reducing the effort required and improving accessibility.
Implementation Method 1
The at least one lever part comprises at least one first through hole, a first arm and a second arm. The first arm comprises a main body and at least one extension portion. The main body is connected with the second arm. The extension portion is connected with the main body and extended from the main body toward the accommodation space. The second arm is in contact with the battery while the battery is disposed in the accommodation space. The first through hole is disposed on the extension portion. The shaft is penetrated through the first through hole, so that the lever part is rotated around the shaft. In response to a force applied on the main body of the first arm. The main body of the first arm is rotated around the shaft along a direction from the second opening and away from the battery. The main body of the first arm drives the second arm to rotate around the shaft toward the first opening, so that the second arm drives the battery to be withdrawn from the housing through the first opening.
Data Source
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AI summary
A battery case structure (1) is provided. The battery case structure (1) includes a housing (3), a shaft (4), a fixing part (5) and at least one lever part (6). While force from the accommodation space (34) toward the exterior of the housing (3) is applied on the main body (621) of the first arm (62) of the lever part (6), the main body (621) of the first arm (62) drives the second arm (63) to rotate around the shaft (4), so that the second arm (63) drives the battery (2) to be withdrawn from the housing (3) through the first opening (33). Comparing the conventional battery case structure with the battery case structure (1) of the present disclosure, the user can withdraw the battery (2) from the battery case structure (1) by applying force on the main body (621) of the first arm (62) of the lever part (6) merely. Consequently, the operation of withdrawing the battery (2) from the battery case structure (1) is labor-saving and convenient.