Battery Receptacle Locking Assembly With Split Bearing Support
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Solution Overview
Problem
The existing manufacturing and assembly processes for locking devices in battery-operated electrical devices are not cost-effective, as they often require complex configurations and additional components for reliable operation.
Innovation Solution
The locking device features two bearing pins aligned coaxially with a pivot axis, where the first bearing pin is immersed in a bearing ring and the second bearing pin extends through a receptacle, allowing for cost-effective assembly and reliable operation using a leg spring that applies torque and force to maintain the locking position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking device uses a locking member with two bearing pins both completely surrounded by bearing rings, then the reliability of the locking mechanism is improved, but the manufacturing cost and assembly complexity increase
Solution Approach 1:
The patent divides the bearing support structure into two segments: a bearing ring for the first bearing pin and a bearing pin receptacle for the second bearing pin. This segmentation allows each component to be optimized independently, reducing overall complexity while maintaining reliability. The bearing ring provides full circumferential support where needed, while the bearing pin receptacle provides sufficient support with less complexity.
Solution Approach 2:
The patent extracts the second bearing ring from the design, removing the redundant component while maintaining functional reliability. The bearing pin receptacle is designed to provide adequate support for the second bearing pin without requiring a complete circumferential bearing ring, thus simplifying the structure and reducing manufacturing costs.
2Stability of the object's composition
If the locking member uses a complex configuration with multiple bearing rings, then the stability of the locking device is improved, but the device complexity increases
Solution Approach 1:
The locking device is segmented into distinct functional components: the locking member with its two bearing pins, the bearing ring for the first bearing pin, and the bearing pin receptacle for the second bearing pin. This segmentation allows each component to be simple in itself while the combination provides overall stability.
Solution Approach 2:
The patent applies local quality by providing a bearing ring (more complex structure) for the first bearing pin where full circumferential support is needed, and a bearing pin receptacle (simpler structure) for the second bearing pin where less support is required. Each location is optimized for its specific functional requirements rather than applying a uniform complex structure throughout.
3Reliability
If the second bearing pin is completely surrounded by a bearing ring, then the reliability of the locking member is improved, but the assembly process becomes more complex and costly
Solution Approach 1:
The second bearing ring is extracted from the design, removing the redundant component while maintaining functional reliability. The bearing pin receptacle is designed to provide adequate support for the second bearing pin without requiring a complete circumferential bearing ring, thus simplifying assembly.
Solution Approach 2:
Instead of providing complete circumferential support with a bearing ring for the second bearing pin, the patent applies partial support through the bearing pin receptacle. This partial action is sufficient for the functional requirements while significantly reducing assembly complexity and manufacturing costs.
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
This configuration enables a cost-effective manufacturing and assembly process while ensuring a reliable locking mechanism without the need for a second bearing ring that completely surrounds the second bearing pin, enhancing the locking device's functionality and ease of assembly.
Implementation Method 1
the locking member is pretensioned into the locking position by means of a spring element
Data Source
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AI summary
The invention relates to an electrical device (10) having an electrical apparatus (12) and at least one battery compartment (30, 31) in which a battery (32) can be inserted and with which a locking apparatus (60, 61) is associated for locking the battery (32), wherein the locking apparatus (60, 61) has a locking member (65) which is pivotable back and forth about a pivot axis (69) between a locking position and a release position and which has a locking element (124) which, in the locking position, protrudes into the battery compartment (30, 31) and, in the release position, releases the battery compartment (30, 31), the locking member (65) being pre-loaded in the locking position by means of a spring element (108). In order to further develop the electrical device (10) such that the locking device (60, 61) can be cost-effectively produced and mounted, according to the invention the locking member (65) has a first and a second bearing journal (87, 89), which are oriented facing away from each other and coaxially relative to the pivot axis (69), wherein the first bearing journal (87) plunges into a bearing ring (91) which surrounds the first bearing journal (87) in the peripheral direction, and wherein the second bearing journal (89) engages through a first bearing journal receptacle (93), which partially surrounds the second bearing journal (89) in the peripheral direction.