E-Bike Charging Cabinet Spring Isolation for Self-Closing Doors
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Solution Overview
Problem
Existing electric charging cabinets for e-bikes lack operational reliability and adequate weather and vandal protection, with visible and accessible springs posing safety risks and increasing the likelihood of damage.
Innovation Solution
The design incorporates a spring mechanism housed in a separate receiving space, accessible only through a lever, which ensures self-closing compartment doors, enhancing reliability and protection while allowing modular and compact construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the spring means is made accessible for adjustment and maintenance, then ease of operation is improved, but safety is worsened due to injury risks from force-loaded moving parts
Solution Approach 1:
The spring means is extracted from the cabinet compartment and placed in a separate receiving space that is physically isolated from the user-accessible area. The lever extends through an opening in the cover, allowing the spring to be disconnected from the compartment door while maintaining physical separation. This extraction removes the harmful spring from direct user contact while preserving its functional connection to the door through the lever mechanism.
2Reliability
If the compartment doors are made self-closing with visible springs, then operational reliability is improved, but vandal protection is worsened due to accessible force-loaded parts
Solution Approach 1:
The spring means is taken out of the cabinet compartment and relocated to a separate receiving space behind a cover. This physical separation maintains the self-closing function (improving reliability) while making the spring inaccessible to users (improving vandal protection). The lever serves as an intermediary that transmits the spring force through the cover opening without exposing the spring itself.
3Object-affected harmful factors
If the receiving space is completely sealed, then safety is improved by isolating moving parts, but ease of repair is worsened due to inaccessibility of the spring means
Solution Approach 1:
The lever acts as an intermediary element that connects the spring means in the sealed receiving space to the compartment door in the user-accessible area. The lever extends through an opening in the cover, allowing it to transmit mechanical force from the spring to the door while the spring itself remains protected in the sealed space. This intermediary arrangement maintains both safety (sealed spring) and functionality (door operation).
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 improves safety by minimizing user interaction with moving parts, enhances operational reliability, and provides improved weather protection, making it suitable for outdoor use with reduced surface area for wind attack and enhanced vandal resistance.
Implementation Method 1
an adjusting device has a spring means supported relative to the cabinet body and a lever supported on the compartment door, wherein the spring means and the lever are connected to one another and the compartment door is acted upon by the spring means in the closing direction or closed position
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
The present invention relates to an electric charging cabinet for charging batteries, in particular e-bikes, comprising: a cabinet body (5) made of metal and several stacked cabinet compartments (1), wherein at least a subset of the cabinet compartments (1) each have an electrical power connection (2) and a compartment door (4) with an actuating device (10), wherein the respective actuating device (10) has a spring element (11) supported against the cabinet body (5) and a lever (12) supported on the compartment door (4), wherein the spring element (11) and the lever (12) are connected to each other and the compartment door (4) is acted upon in the closed position by the spring element (11), wherein the spring element (11) is arranged in a receiving space (13) separated from the cabinet compartment (1) above and/or below a shelf (14), wherein the receiving space (13) is closed on an opening side (3) of the cabinet body (5) by a cover (16).which has a breakthrough (23) for the lever (12).