Refrigeration and insulation bag
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Solution Overview
Problem
Conventional cooler bags rely on limited-duration ice packs for temperature control, requiring frequent replacements and offering only rough temperature regulation, which is costly and inefficient, and they lack the ability to precisely control temperature or maintain heat for extended periods.
Innovation Solution
A refrigeration bag equipped with an electric refrigeration assembly featuring semiconductor chilling plates, heat dissipation fans, and a power supply, allowing for real-time temperature adjustment and precise control, eliminating the need for ice packs and enabling both cooling and heating functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If ice packs are used for refrigeration, then the bag can provide cooling function, but the cooling duration is limited and ice packs need frequent replacement
Solution Approach 1:
The patent replaces the mechanical ice pack system with an electronic refrigeration system comprising a semiconductor refrigeration plate, heat dissipation fan, and power supply component. This substitution eliminates the need for physical ice packs and their frequent replacement, enabling continuous cooling operation as long as power is supplied.
Solution Approach 2:
The refrigeration system automatically maintains cooling without user intervention. The semiconductor refrigeration plate continuously operates to maintain low temperature, and the heat dissipation fan automatically dissipates heat, eliminating the need for manual ice pack replacement and simplifying user operation.
2Measurement precision
If ice packs are used for temperature control, then cooling function is provided, but temperature control precision is poor
Solution Approach 1:
The patent incorporates a temperature controller that provides feedback control for precise temperature management. The controller monitors the internal temperature and adjusts the semiconductor refrigeration plate operation accordingly, enabling precise temperature control while maintaining relatively simple system architecture through integrated control.
3Duration of action of stationary object
If insulation layer is added for heat preservation, then heat retention is improved, but the heat preservation interval is still limited
Solution Approach 1:
The patent performs preliminary cooling action by using the semiconductor refrigeration plate to pre-cool items before they are stored in the insulated bag. This preliminary refrigeration, combined with the insulation layer, extends the overall heat preservation interval by maintaining lower temperatures for longer periods without requiring thicker insulation or more complex structures.
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
The refrigeration bag provides a cost-effective, low-maintenance solution for maintaining precise temperature control, extending cold storage time indefinitely, and can be used as a portable refrigerator or to charge electronic devices, offering multi-functional capabilities.
Implementation Method 1
a plurality of semiconductor chilling plates evenly distributed in the top cover, wherein a cold side of each semiconductor chilling plate faces the cavity to uniformly refrigerate the environment in the cavity
Implementation Method 2
a plurality of heat dissipation fans connected to heat sides of the semiconductor chilling plates, wherein the heat dissipation fans are configured to create air flow to dissipate heat generated by the semiconductor chilling plates
Implementation Method 3
a temperature-uniforming plate, wherein the temperature-uniforming plate is attached to the semiconductor chilling plates and seals the accommodating cavity
Data Source
AI summary
A novel refrigeration and insulation bag includes a bag body and a top cover. An interior of the bag body forms a cavity, and a top end of the bag body is provided with an opening. The top cover is used for closing the opening, an interior of the top cover forms an accommodating cavity, and a refrigeration assembly or a refrigeration/heating assembly is embedded in the accommodating cavity. The refrigeration assembly or refrigeration/heating assembly includes semiconductor chilling plates, heat dissipation fans, temperature-uniforming plate, power supply component, and other components. The refrigeration assembly or refrigeration/heating assembly of the present disclosure powered by electricity is configured to refrigerate the interior of the bag, so as to create a low-temperature environment without the need to frequently replace the ice packs before use, or configured to heat up the interior of the bag, so as to keep warm of the bag.