Portable Hand Warmer Charging Case for Outdoor Multi-Zone Heating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hand warmers are inconvenient to charge outdoors and often only warm one hand or body part, making it difficult to simultaneously warm multiple body parts or both hands.
Innovation Solution
A portable hand warmer charging case with a placement chamber, a first circuit board, a first battery, and a first charging unit that allows for the hand warmer unit to be charged internally, using a conductive probe or wireless charging, and includes an indicator lamp to monitor battery levels and charging states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing hand warmers are designed to be portable and thin, then they are easier to carry and wear, but they cannot be charged outdoors without external power supplies
Solution Approach 1:
The patent combines the hand warmer unit and charging case into a single integrated device. The charging case contains a battery and charging circuit that can charge the hand warmer unit's battery internally, eliminating the need for external power supplies and enabling outdoor charging while maintaining portability.
Solution Approach 2:
The charging case serves multiple functions: it acts as a protective case for the hand warmer unit, contains a battery for charging the unit, provides a charging circuit for power transfer, and can be worn on the wrist like a watch. This multi-functionality resolves the contradiction by enabling outdoor charging without compromising portability.
2Device complexity
If hand warmers are designed to warm only one hand or one body part, then the device structure remains simple, but it cannot meet the need to simultaneously warm multiple body parts
Solution Approach 1:
The hand warmer unit is divided into separate heating zones with independent heating elements. Each zone can be controlled separately, allowing the user to warm different body parts simultaneously. This segmentation enables multi-body-part warming while maintaining relatively simple device structure through modular design.
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
Enables convenient charging of hand warmer units outdoors and allows for simultaneous warming of multiple body parts by integrating multiple hand warmers, enhancing user experience and convenience.
Implementation Method 1
the case body is provided with a first circuit board, a first charging unit, and a first battery; the first battery and the first charging unit are electrically connected to the first circuit board
Implementation Method 2
the first charging unit is configured to be adapted to a second charging unit on the hand warmer unit for use and transmit the electrical energy output by the first circuit board to the second charging unit on the hand warmer unit
Implementation Method 3
the hand warmer unit is provided with a second circuit board, a heating element, a second battery, and a second charging unit; the heating element, the second battery, and the second charging unit are all electrically connected to the second circuit board
Data Source
AI summary
A portable hand warmer charging case includes a case body. A placement chamber configured to place a hand warmer unit for charging is provided on the case body. The case body is provided with a first circuit board, a first charging unit, and a first battery. The first battery and the first charging unit are electrically connected to the first circuit board. When the hand warmer unit is placed in the placement chamber, the first circuit board is configured to output electrical energy, which is output by the first battery, from the first charging unit; and the first charging unit is configured to be adapted to a second charging unit on the hand warmer unit for use and transmit the electrical energy output by the first circuit board to the second charging unit on the hand warmer unit.