Hand Vacuum Cleaner Motor Nesting for Cordless Compact Design
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Solution Overview
Problem
Existing hand vacuum cleaners are limited by their size and maneuverability due to the presence of a power cord, which restricts their use and ergonomics, and there is a need for a more compact design that allows for improved accessibility and ease of use.
Innovation Solution
A hand vacuum cleaner design featuring a compact form factor achieved by nesting the fan and motor assembly and filters between onboard energy storage members, such as batteries, allowing for a more portable and maneuverable device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a power cord is used to power the hand vacuum cleaner, then the device can operate continuously, but the maneuverability and ergonomics are restricted
Solution Approach 1:
The patent removes the power cord (tether) from the system by extracting the power source from an external stationary supply and relocating it to an onboard battery pack, enabling wireless operation and improving maneuverability
Solution Approach 2:
The patent replaces the mechanical electrical connection (power cord) with an electrical energy storage system (onboard battery pack), substituting a physical tether with a self-contained power source
2Volume of moving object
If the fan and motor assembly and filters are nested between onboard energy storage members, then the overall size is reduced, but the device complexity increases
Solution Approach 1:
The patent applies nesting by placing the fan and motor assembly and filters between the onboard energy storage members (batteries), with components arranged in a nested configuration where the motor assembly is positioned within the space defined by the battery arrangement, reducing overall device volume
Solution Approach 2:
The patent repositions components in three-dimensional space by nesting the motor assembly between batteries arranged in specific spatial configurations (e.g., batteries on opposite sides of the motor), utilizing vertical and lateral dimensions to achieve compact integration
Data Source
AI summary
A hand vacuum cleaner has a hand vacuum cleaner front end having a dirty air inlet, a cyclone and a dirt collection chamber that is external to the cyclone. The cyclone has a cyclone axis of rotation which intersects a cyclone front end and a cyclone rear end. A front door is provided which, in an open position, opens the dirt collection chamber. The front door has a first part which extends generally transverse to the cyclone axis of rotation and a second part that extends rearward at a non-zero angle to the cyclone axis of rotation and the first part.