Modular Packet Cam Switch with Uniform Connection Height
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Solution Overview
Problem
Existing packet cam switches face challenges with modular design, including varying installation depths and complexities in wiring due to star-shaped connection lugs at different heights, which complicate installation and increase the risk of wiring errors.
Innovation Solution
A modular packet cam switch design with identical cuboid switching chamber modules, where all connection lugs are at the same height, maintaining constant overall depth and allowing for easy access and protection, featuring a common actuating slide with cams for each plunger and a dovetail connection mechanism for module alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If switching chamber modules are arranged radially with star-shaped connection lugs at different heights, then the package cam switch can accommodate multiple circuits, but the installation depth varies greatly and wiring becomes complex
Solution Approach 1:
The package cam switch is divided into multiple identical switching chamber modules, each handling a separate circuit. These modules are arranged linearly rather than radially, with all connection lugs positioned at the same height. This segmentation allows flexible configuration for different numbers of circuits while maintaining uniform installation depth and simplified wiring.
Solution Approach 2:
The connection lugs are repositioned from a radial star pattern at different heights to a linear arrangement at the same height level. This dimensional reorganization eliminates the depth variation problem and makes wiring more straightforward by allowing all connections to be accessed from the same plane.
2Adaptability or versatility
If switching chamber modules are arranged radially, then multiple circuits can be switched, but touch protection becomes difficult to implement without hindering tool accessibility
Solution Approach 1:
Each switching chamber module is provided with its own individual touch protection device that covers the connection lugs. Since the modules are arranged linearly with lugs at the same height, these protective devices can be uniformly designed and easily accessed from the front, allowing tool accessibility while providing necessary protection.
3Adaptability or versatility
If the number of cam packages increases, then more circuits can be switched, but the length and installation depth increase significantly
Solution Approach 1:
The switch is constructed from multiple identical modular units that can be combined in series. Each module has standardized dimensions, so adding more circuits simply increases the overall length linearly while maintaining a constant, predictable installation depth determined by the module height and actuating mechanism.
4Ease of operation
If identical cuboid switching chamber modules are used with connection lugs at the same height, then wiring is simplified and installation depth is constant, but the design becomes more constrained
Solution Approach 1:
All switching chamber modules are designed to be identical and interchangeable, with standardized connection lugs at the same height. This universal design simplifies wiring and installation while the modular nature allows flexible adaptation to different numbers of circuits. The actuating mechanism is also designed to work uniformly with all modules.
Data Source
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AI summary
A packet cam switch comprises a plurality of switch chamber modules arranged adjacently and configured identically to one another. Each switch chamber module comprises a separate power switch associated with a circuit. An autonomous actuating housing accommodates an indexing mechanism for a switch shaft. The switch shaft is coupled via a gear drive to a cam slide. The cam slide is located between the block of switch chamber modules and the housing for the actuating mechanism. The housing for the actuating mechanism is configured for a standard design of the packet cam switch having three interconnected switch chamber modules. The electrical connections of the packet cam switch are located on the narrow sides of the individual switch chamber modules. For finished packet cam switches, there are connections on two sides, wherein the connections are at the same height on one side.