Nested Motor and Cyclone Layout for Compact Vacuum Cleaners
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vacuum cleaners face inefficiencies in space utilization and performance due to the separate placement of motors and cyclonic separation apparatus, leading to increased size and weight, particularly in compact designs like hand-holdable models.
Innovation Solution
A motor, fan, and cyclonic separation apparatus arrangement where the motor is nested within a circular array of cyclones, reducing space requirements and enhancing cooling efficiency, with a dual cyclonic separation unit system for effective particulate matter separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the motor and cyclonic separation apparatus are placed separately, then the components can be easily manufactured and assembled, but the overall size and weight of the vacuum cleaner increase
Solution Approach 1:
The motor is nested within the cyclonic separation apparatus by positioning it in the central cavity formed by the circular array of cyclones. This nesting arrangement allows the motor to occupy the empty space within the cyclonic structure, achieving compact integration without interfering with the cyclonic separation function. The motor shaft aligns with the central axis of the cyclones, enabling efficient space utilization while maintaining separate manufacturability of individual components.
2Volume of moving object
If the motor is nested within the cyclonic separation apparatus, then space utilization improves and device size reduces, but the motor requires effective cooling in a confined space
Solution Approach 1:
The air flow path generated by the cyclonic separation apparatus is utilized to cool the motor. The air flow path is configured to pass through or around the motor housing, carrying away heat generated by the motor. This pneumatic cooling solution eliminates the need for separate cooling systems or additional space for heat dissipation, as the operational air flow serves dual purposes: cyclonic separation and motor cooling.
3Loss of energy
If separate placement of motor and cyclonic separation apparatus is used, then maintenance is easier, but energy loss increases due to longer air flow paths
Solution Approach 1:
The motor and cyclonic separation apparatus are merged into a single integrated assembly where the motor is positioned at the center of the cyclone array. This merging reduces the air flow path length by eliminating intermediate connections and reducing the number of seals and joints. The integrated design maintains ease of maintenance by allowing the entire assembly to be treated as a modular unit that can be removed and serviced together, or by providing access points for individual component maintenance.
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 arrangement results in a more compact and efficient vacuum cleaner design that maintains performance while reducing energy loss and extending the time between filter cleanings, making it suitable for hand-holdable devices.
Implementation Method 1
a cyclonic separation apparatus located in a path of the air flow generated by the fan, wherein the cyclonic separation apparatus comprises a plurality of cyclones
Implementation Method 2
the cyclones are arranged in a generally circular array about a central axis of the cyclonic separation apparatus
Implementation Method 3
motor cooling system, wherein the motor cooling system comprises a motor cooling air flow path
Data Source
AI summary
A motor, fan and cyclonic separation apparatus arrangement for a vacuum cleaner, the arrangement comprising: a motor coupled to a fan for generating air flow; and a cyclonic separation apparatus located in a path of the air flow generated by the fan, wherein the cyclonic separation apparatus comprises: a plurality of cyclones each with an air inlet port and an air outlet port wherein the cyclones are arranged in a generally circular array about a central axis of the cyclonic separation apparatus; and a cooling air flow path, wherein the motor is nested within the generally circular array of cyclones and wherein the motor is located in the cooling air flow path. A vacuum cleaner comprising the motor, fan and cyclonic separation apparatus arrangement.