Portable Hand Warmer Charging Case With Internal Battery Charging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hand warmers are unable to simultaneously warm both hands or multiple body parts, and they require external power sources for charging, making it inconvenient to charge them outdoors.
Innovation Solution
A portable hand warmer charging case with a placement chamber for the hand warmer unit, equipped with a first circuit board, a conductive probe charging unit, and a battery, which allows for internal charging of the hand warmer unit when placed in the case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing hand warmers are designed to be portable, then they can be carried outdoors, but they require external power sources for charging which are unavailable outdoors
Solution Approach 1:
The patent combines the hand warmer unit and charging case into a single integrated portable device. The charging case contains a battery and charging circuit that directly charge the hand warmer unit when placed inside, eliminating the need for external power sources. This merging of functions resolves the contradiction by providing both portability and self-contained charging capability.
Solution Approach 2:
The charging case enables the hand warmer unit to charge itself by simply being placed inside the case. The charging system automatically detects and transfers power from the case battery to the unit battery without requiring external intervention or power sources, making the system self-sufficient for outdoor use.
2Adaptability or versatility
If hand warmers are designed to warm multiple body parts simultaneously, then user comfort is improved, but device complexity increases
Solution Approach 1:
The hand warmer system is divided into separate functional modules: a reusable heating unit that can warm different body parts, and a charging case that provides power. This segmentation allows the warming function to be simple and adaptable, while the charging complexity is contained in the case, resolving the contradiction between versatility and complexity.
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 and portable charging of hand warmer units outdoors, allowing users to charge their hand warmers on the go without needing external power sources.
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.