Sealed Power Cable Connector Layout for Dust-Resistant Replacement
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Solution Overview
Problem
Existing power tool designs fail to simplify the replacement of power cables without compromising the dust resistance and integrity of the tool, leading to potential damage during maintenance.
Innovation Solution
A device with a clamping mechanism and contact system, where the connecting element runs through a housing element that spatially separates the clamping device from the electronic unit, utilizing a sealing device to prevent contamination and ensure secure, easy replacement of the power cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the power cable is made replaceable to simplify maintenance, then the ease of repair is improved, but the dust resistance and electronic integrity may be compromised
Solution Approach 1:
The device is divided into separate functional areas: a first area containing the clamping device for the power cable, and a second area containing the electronic unit. A housing element with an opening separates these areas, allowing the power cable to be replaced without exposing the electronic unit to external contaminants, thus maintaining dust resistance while enabling easy repair.
Solution Approach 2:
A connecting element acts as an intermediary, extending through the opening in the housing element to establish electrical connection between the clamping device (first area) and the contact device (second area). This intermediary structure allows the power cable to be replaced from the first area without direct access to the electronic unit in the second area, protecting the electronic integrity while enabling maintenance.
2Ease of operation
If the clamping device is separated from the electronic unit to enable easy power cable replacement, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The housing is segmented into distinct areas with an opening that allows the connecting element to pass through. This segmentation creates spatial separation between the clamping device and electronic unit, enabling independent access to the power cable for replacement without exposing the electronic unit, thus improving ease of operation while adding minimal structural complexity.
Data Source
Figure 1~2
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AI summary
The invention relates to a device (8) for connecting a power cord (3) to an electronic unit (9) of a power tool (1), comprising at least one clamping device (10) for clamping a connecting lead (11) of the power cord (3) and a contact device (12) for establishing an electrical contact between the connecting lead (11) clamped by the clamping device (10) and the electronic unit (9). The clamping device (10) and the contact device (12) are arranged on a connecting element (14) which extends through an opening (15) in a housing element (16) that spatially separates the clamping device (10) from the electronic unit (9). The housing element (16) and the connecting element (14) are sealed against each other by means of a sealing device (20).