Injection-Molded Vacuum Cleaner Handle for Static Charge Discharge
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Solution Overview
Problem
Existing vacuum cleaner handles do not fully optimize production technology for electrostatic charge dissipation, leading to potential electric shocks during use, despite previous designs incorporating wire brackets for potential equalization.
Innovation Solution
A handle with a non-conductive plastic core part manufactured via injection molding, integrated with an injection-molded electrically conductive conductor extending from the grip area to the contact area, allowing for continuous charge discharge through the suction pipe, eliminating the need for additional assembly steps and enabling complex geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wire bracket is integrated into the handle by subsequent assembly, then electrical potential equalization is achieved, but production complexity and assembly costs increase
Solution Approach 1:
The conductor is merged with the core part through injection molding, combining two previously separate components (wire bracket and handle) into a single integrated structure. This eliminates the need for subsequent assembly steps while maintaining electrical potential equalization functionality.
Solution Approach 2:
The conductor is pre-formed and integrated into the core part during the injection molding process itself, rather than being added later. This preliminary integration of the electrical conductor into the handle structure simplifies production by performing the integration action during the primary manufacturing process.
2Object-affected harmful factors
If a wire bracket is used for potential equalization, then electrostatic discharge is enabled, but additional assembly steps and costs are required
Solution Approach 1:
The conductor functionality is merged directly into the handle manufacturing process through injection molding, eliminating the separate assembly step. This combines the electrical discharge function with the structural component production, improving assembly efficiency while maintaining electrostatic discharge capability.
Solution Approach 2:
The injection molding process itself performs the integration of the conductor into the handle, making the manufacturing process self-sufficient. The system serves its own integration needs through the molding process rather than requiring external assembly operations.
3Ease of manufacture
If a simple conductor geometry is used, then production is simpler, but functional optimization is limited
Solution Approach 1:
The injection molding process allows for changing the geometric parameters of the conductor to match the core part's shape and requirements. This enables complex three-dimensional conductor geometries to be manufactured with the same ease as simple shapes, providing functional optimization while maintaining production simplicity.
Solution Approach 2:
The use of electrically conductive plastic combines the structural properties of plastic with the electrical conductivity needed for the conductor. This composite material approach allows complex geometries to be formed through standard injection molding while achieving the required electrical functionality.
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 solution simplifies production, reduces assembly costs, and effectively prevents electric shocks by ensuring continuous electrostatic discharge without additional assembly, while allowing for more complex conductor geometries and design features.
Implementation Method 1
A user of the vacuum cleaner grasps the handle in the grip area and thus comes into contact with the conductor. In the contact area, the handle is in contact with a suction pipe, so that if the user becomes electrostatically charged, the charge can be discharged via the conductor and the adjoining suction pipe.
Implementation Method 2
When vacuuming, static electricity (triboelectric effect) can cause the user of the vacuum cleaner to become electrostatically charged. The conductor connected to the core part, produced in an injection molding process, thus replaces the previous wire clip and is otherwise effective in the same way in terms of a continuous discharge of charge in the event of electrostatic charging of the user of the vacuum cleaner resulting from vacuum cleaning.
Implementation Method 3
A handle for a vacuum cleaner with a core part made from a non-conductive plastic in an injection molding process and with an injection molded electrical conductor, which is connected to the core part in the injection molding process
Data Source
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AI summary
The invention is a handle (16) for a vacuum cleaner, the handle (16) comprising a core part (24) made from a non-conductive plastic in an injection molding process and a conductor (22) made in an injection molding process and connected to the core part (24). , which extends from a handle area (26) to a contact area (30) of the handle (16), and a vacuum cleaner with such a handle (16).