Load Control Slider Assembly Without Interference Fit
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Solution Overview
Problem
Conventional electrical load control devices face issues with difficult assembly due to interference fit, material deformation, wear, safety concerns, and restricted slider width, making operation inconvenient.
Innovation Solution
The device incorporates a selectively connected slide groove and operating through hole for slider assembly, reducing assembly force, avoiding material deformation, and increasing slider width for improved user operation, while enhancing safety by isolating the interior and exterior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If interference fit is used to assemble the slider to the slide groove, then the slider can be securely retained in the slide groove, but large assembly force is required and the material deforms during assembly
Solution Approach 1:
The invention divides the assembly process into two distinct phases: first, the slider is inserted through the operating through hole without interference fit; second, the stopper is engaged to lock the slider in position. This segmentation eliminates the need for high-force interference fit assembly while ensuring secure retention through the stopper mechanism.
Solution Approach 2:
The stopper is pre-positioned or easily engageable to perform the retention function before final assembly completion. By preparing the retention mechanism in advance, the actual assembly through the through hole requires minimal force, avoiding material deformation while ensuring the slider will be securely held.
2Reliability
If interference fit is used to assemble the slider to the slide groove, then the slider can be securely retained, but the material deforms and wear occurs during the pressing process
Solution Approach 1:
The retention function is separated from the insertion path. The slider inserts through the through hole without contact pressure, then the stopper engages to provide retention. This segmentation eliminates the pressing process that causes material deformation and wear, extending the service life of both the slider and base block materials.
Solution Approach 2:
The stopper acts as an intermediary component that provides the retention function without requiring direct interference fit between the slider and slide groove. This intermediary mechanism transfers the retention requirement from a high-stress direct fit to a low-stress engaged component, reducing material wear and deformation.
3Ease of manufacture
If the slide groove is a through hole to allow slider assembly, then assembly is simplified, but the outside and inside of the device are connected affecting safety performance
Solution Approach 1:
The invention segments the through hole into two functional zones: the operating through hole for assembly access, and the sealed slide groove for internal component containment. The stopper serves as a separator that blocks the connection between these zones, maintaining both assembly ease and safety by preventing external contamination while allowing straightforward slider installation.
Solution Approach 2:
The stopper acts as an intermediary barrier that selectively connects or isolates the operating through hole from the slide groove. During assembly, the stopper allows slider passage; during operation, it blocks the pathway to prevent external contaminants from entering the internal device space, thus maintaining safety performance while preserving assembly simplicity.
4Area of stationary object
If the slide groove width is limited, then the device structure is compact, but the slider width is small making operation inconvenient
Solution Approach 1:
The invention resolves the width conflict by utilizing the depth dimension. The operating through hole provides a larger opening area for user interaction, while the slide groove maintains a compact cross-sectional width for small device footprint. The slider can have sufficient width for comfortable operation at the through hole interface while the groove itself remains narrow, effectively using dimensional differentiation to satisfy both requirements.
Data Source
AI summary
An electrical load control device and an assembly method thereof. The load control device includes a base block and a first operating component arranged on the base block for adjusting an operation parameter of an electrical load. The base block has a slide groove and an operating through hole, and the first end of the slide groove can be selectively opened to connect the slide groove with the operating through hole. The first operating component includes a slider, which is slidably engaged with the slide groove. When the slide groove is connected with the operating through hole, the slider can be assembled with the slide groove through the operating through hole, without requiring the slider to be pressed through the groove. The structure and assembly method of the load control device reduce assembly difficulty, avoid deformation or wear, increase device service life, and provides a wider slider for easy operation.