Nested Shopping Cart Power Transfer for Simplified Charging Bays
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Solution Overview
Problem
The existing shopping cart systems require multiple power transmitting devices in the storage area, leading to complex equipment setup and inefficiencies, particularly during peak hours when customers need to charge their carts.
Innovation Solution
A shopping cart design with a power receiving portion on the front and a power transmitting portion on the rear, allowing for sequential power transfer between carts, enabling a single external power supply device to charge multiple carts, thus simplifying the storage area equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each shopping cart is supplied with power from an individual power transmitting device, then each cart can be charged independently, but the equipment complexity in the cart storage area increases due to the need for multiple power transmitting devices
Solution Approach 1:
Multiple power transmitting devices are merged into a single power transmitting device. The patent configures one power transmitting device to serve multiple shopping carts simultaneously through wireless power transmission, eliminating the need for multiple separate transmitting devices in the storage area while maintaining reliable power supply to each cart's battery.
Solution Approach 2:
The single power transmitting device is designed with multi-functionality to serve multiple shopping carts. It can transmit power to several carts at the same time or sequentially, making one device universal for multiple charging purposes, thereby reducing equipment complexity while ensuring power supply reliability.
2Productivity
If multiple power transmitting devices are installed in parallel in the cart storage area, then each cart can be charged simultaneously, but the installation cost and equipment setup become more complex
Solution Approach 1:
The power transmission system enables continuous charging operation. When one shopping cart is being charged, other carts can also receive power simultaneously or sequentially through the single transmitting device, ensuring continuous useful action without interruption. This maintains charging efficiency while avoiding the complexity of multiple parallel devices.
Solution Approach 2:
The system dynamically allocates power transmission resources. The single power transmitting device can dynamically adjust power distribution to different carts based on their charging needs, enabling flexible and efficient power supply without the rigid infrastructure of multiple fixed transmitting devices.
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 allows for efficient power distribution to multiple carts using a single power source, reducing the need for multiple power transmitting devices and simplifying the storage area setup, while ensuring continuous power supply for payment processing devices.
Implementation Method 1
a power receiving portion (10) electrically connectable to the power transmitting portions (41a, 41b) of the external power supply device (70)
Implementation Method 2
power transmitting portions (41a, 41b) for supplying power to the power receiving portions (40a, 40b) of following carts nested behind the shopping cart (1)
Data Source
AI summary
Provided is a shopping cart capable of simplifying equipment of a storage area of the shopping cart. A shopping cart allowed to be nested in a front-rear direction, includes: a cart body; a battery configured to supply power to an electronic device attached to the cart body and displayed commodity information read by a reading device; power receiving units and provided on a front side of the cart body and configured to be electrically connectable to an external power supply device; and power transmitting units and provided on a rear surface side of the power receiving units and configured to supply power to a power receiving units and of another shopping cart nested in the shopping cart.