Handheld electric vacuum
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Solution Overview
Problem
Conventional handheld electric vacuums face operability and workability issues due to the heavy weight of components like the blower fan and battery being placed far from the handle, leading to increased load on the operator and reduced grip space, which can result in a more complex or larger structure.
Innovation Solution
The handheld electric vacuum design includes a blower fan inclined forwardly along a bending portion at the base end, with the handle and battery positioned to form a space that maintains balance and grip space, ensuring the heavy components are near the handle without increasing the structure's complexity or size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the blower fan and battery are disposed at positions far from the handle, then the structure is simpler and larger components can be accommodated, but the operator experiences increased load and reduced operability
Solution Approach 1:
The patent positions the blower fan not directly above or below the handle, but at an inclined angle along the bending portion at the base end of the pipe. This spatial reconfiguration in three-dimensional space allows the heavy component to be closer to the handle while maintaining balance and grip space, thereby improving operability without increasing operator load
2Ease of operation
If the blower fan and battery are disposed near the handle, then the operability is improved, but the space around the grip portion is narrowed and the structure becomes more complicated
Solution Approach 1:
The patent employs asymmetric positioning of the blower fan relative to the handle, placing it at an inclined angle along the bending portion rather than in a symmetric position. This asymmetric arrangement optimizes the spatial relationship between components, ensuring sufficient grip space around the handle while maintaining a simple overall structure
Solution Approach 2:
By utilizing the inclined bending portion at the base end of the pipe, the patent creates additional spatial dimensions for component placement. This allows the blower fan to be positioned near the handle without interfering with the grip portion, avoiding the need for complex structural modifications
3Area of stationary object
If the blower fan and battery are disposed at positions spaced from the handle, then the grip space is ensured, but the operation cannot be performed in good balance
Solution Approach 1:
The patent utilizes the inclined bending portion at the base end to position the blower fan in a three-dimensional configuration that balances both grip space and operational balance. The inclined positioning creates an optimal center of gravity distribution, ensuring good balance during operation while maintaining adequate grip space
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 design improves operability and workability by maintaining balance and ensuring sufficient grip space, even with heavy components placed near the handle, reducing the likelihood of a more complex or larger structure.
Implementation Method 1
The pressurized wind ejected from the ejector passes through the inside of the pipe along the inner surface of the pipe and is ejected to the discharge port. This pressurized wind causes the pressure inside the pipe to be lowered, thereby to generate suction flow (negative pressure) in the pipe from the suction port toward the discharge port.
Data Source
AI summary
Provided is a handheld electric vacuum capable of improving the operability and workability while reducing the likelihood of the structure becoming more complicated or larger by optimizing the layout configuration around a handle, including a blower fan, a casing, and a battery. The blower fan is inclined forwardly along a bending portion and disposed on the base end side of the bending portion provided at the base end of the pipe. In addition, an opposing portion (vertical side portion) of the handle incorporating the battery, facing the blower fan is inclined (inclined backwardly) oppositely to the blower fan. The upper length (near a grip portion) of a space of the handle formed on the base end side of the blower fan is greater than the lower length thereof.