Power pack for a backpack vacuum and the like
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Solution Overview
Problem
Existing power packs for backpack vacuums lack secure connections for power cords, which can lead to dislodgment during use, and do not provide an effective indication of when the vacuum contents bag is full, potentially causing inefficiency and motor damage.
Innovation Solution
A power pack with recessed receptacles and secure connection structures for main and auxiliary power cords, including a push-button on/off switch that can be remotely controlled and an illuminating ring to indicate reduced suction power when the vacuum contents bag is full.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power cords are connected using conventional receptacles, then the device can be powered on, but the power cords can be dislodged easily during use
Solution Approach 1:
The power cord receptacles are recessed into the power pack housing, creating a nested structure where the cord plug is received within a cavity. This nesting provides mechanical protection and secure retention while allowing easy insertion and removal of cords.
Solution Approach 2:
A power cord coupler acts as an intermediary component between the power cord plug and the recessed receptacle. The coupler provides a secure mechanical interface that prevents dislodgment while maintaining ease of connection and disconnection.
2Reliability
If no indication system is provided, then the device structure remains simple, but the operator cannot detect when the vacuum contents bag is full, potentially causing motor damage
Solution Approach 1:
An illuminating ring provides visual feedback to the operator about the suction status. When suction power diminishes (indicating the bag is full), the illuminating ring activates to signal the operator to empty the bag, preventing motor damage from continued operation.
Solution Approach 2:
The illuminating ring uses light emission (color change from off to illuminated) to indicate the operational status of the vacuum. This visual signal clearly communicates when the bag needs emptying without adding complex control systems.
3Ease of operation
If the power switch is not remote controllable, then the control mechanism is simpler, but the operator cannot easily turn off power when needed
Solution Approach 1:
The power switch is designed to be remotely controllable, allowing the operator to turn the vacuum on and off from a distance. This dynamic control capability improves ease of operation while the patent keeps the control mechanism relatively simple through straightforward switch design.
Data Source
AI summary
A power box for use with a vacuum cleaning unit adapted to be carried on the back of a user is structurally arranged so as to be transportable with the user and comprising an external housing including a recessed power receptacle for receiving a power cord, a separate coupler threaded with the recessed power receptacle for securing power cords of differing plug dimensions. Further comprising recessed structures for receiving a power cord for an auxiliary device for use with the vacuum cleaning unit and connector structures adapted to secure the power cord in a manner to be released.