Push-Assisted Trolley with Segmented Battery and Adaptive Motor Control
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Solution Overview
Problem
Existing push-assisted trolleys have limited autonomy due to battery constraints and lack control over motor push in varying ground conditions, requiring frequent charging and maintenance.
Innovation Solution
A modular design combining a trolley unit with an electric gear motor and rechargeable battery, integrated with an electronic control system including sensors and a separate charging unit, allowing for extended autonomy and adaptive motor control based on ground conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the battery capacity is increased to extend operating autonomy, then the autonomy of movement is improved, but the weight and dimensional constraints of the trolley are worsened
Solution Approach 1:
The battery system is divided into two separate units: a first battery unit integrated with the trolley for immediate power supply, and a second battery unit housed in a separate charging body. This segmentation allows the trolley to operate with a lighter battery while the second battery extends operating autonomy when connected, resolving the contradiction between autonomy and weight.
2Duration of action of moving object
If the battery capacity is increased to extend operating autonomy, then the autonomy of movement is improved, but the dimensional constraints of the trolley are worsened
Solution Approach 1:
By separating the battery system into two units, the trolley's dimensions are kept compact while the second battery unit provides extended capacity when needed. The modular design allows the charging body to be detached when not in use, avoiding permanent dimensional increases to the trolley.
3Adaptability or versatility
If no control means are provided for the motor push, then the device structure is simple, but the adaptability to ground conditions is worsened
Solution Approach 1:
A control unit is implemented that receives input from a push control means and adjusts the motor push accordingly. This feedback mechanism allows the system to adapt to varying ground conditions and operator needs while maintaining a relatively simple overall structure, resolving the contradiction between adaptability and complexity.
4Weight of moving object
If the trolley requires frequent charging due to limited battery capacity, then the battery weight is reduced, but the loss of time for charging and maintenance is worsened
Solution Approach 1:
The system allows the second battery unit to be charged in advance in the charging body, separate from the trolley. When needed, the pre-charged second battery can be quickly connected to extend operating autonomy, reducing the time the trolley is out of service for charging while maintaining light battery weight in the trolley itself.
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
Enhances operational autonomy and safety by enabling adaptive motor control and extended use in varying environments, with easy maintenance and charging capabilities.
Implementation Method 1
comprising at least one wheel driven in rotation by means of an electric gear motor, supplied by means of the electric battery means on board the trolley
Data Source
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AI summary
Apparatus (20) for transporting objects by means of a push-assisted trolley (21.1), comprising: - a first unit (21), configured as a trolley (21.1) with two wheels (21.3) for transporting objects, comprising electric gear motor means (21.2), configured to control the rotation of at least one wheel of said two wheels (21.3), and first rechargeable electric storage battery means (21.4), configured to supply, through corresponding supply and control electric circuit means, said electric gear motor means (21.2), and - a second unit (22), configured as a body (22.1), structurally complementary with respect to said trolley (21.1) and comprising at least electric/electronic battery charger means (22.2), configured to electrically charge said first electric battery means (21.4) of said first unit (21); wherein said second unit (22) further comprises second electric storage battery means (23), rechargeable and electrically connected, by means of corresponding electric circuit means, on one side, with respect to said electric/electronic battery charger means (22.2), for electric charging, when necessary, and on the other side, with respect to said removable electrical connection means (22.3) of said second unit (22).