Thermal Insulation Backpack with Dynamic Sealing for External Cooling
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Solution Overview
Problem
Current thermal insulation bags fail to maintain food temperature effectively over time, requiring frequent removal and refrigeration, making them unsuitable for emergency situations.
Innovation Solution
A thermal insulation backpack with adapter assemblies, including a fixing frame, sealing screen, and reset assembly, that allows for quick cooling and insulation without removing items, using connection holes and through slots to control airflow and temperature, along with a temperature display and master control chip for efficient temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If food is placed in thermal insulation bags, then food temperature is maintained initially, but temperature elevates slowly over time making long-term insulation ineffective
Solution Approach 1:
The patent introduces a movable sealing screen that can dynamically switch between open and closed positions. When opened, it allows cold air to enter the insulation cavity; when closed, it seals the cavity for thermal insulation. This dynamic mechanism enables the system to adapt to different operational phases (cooling vs. insulation), resolving the contradiction between maintaining temperature and extending insulation duration.
Solution Approach 2:
The system employs periodic cooling cycles where the sealing screen opens at intervals to allow cold air replenishment, then closes to maintain insulation. This periodic action prevents continuous temperature elevation while extending the effective insulation duration, as the cavity is sealed for most of the time to preserve thermal conditions.
2Temperature
If food is removed from thermal insulation bags for refrigeration, then thermal insulating effect is achieved, but operation becomes inconvenient and unsuitable for emergencies
Solution Approach 1:
The patent extracts the cooling function from the food itself and implements it through a separate cold air supply system. The sealing screen opens to allow external cold air to enter the insulation cavity directly, cooling the food without requiring removal. This extraction of the cooling function enables the food to remain in the bag while achieving refrigeration效果.
Solution Approach 2:
The sealing screen acts as an intermediary mechanism that controls air flow between the external environment and the insulation cavity. It mediates the cooling process by selectively opening to permit cold air entry while keeping the food contained, thus achieving both cooling and operational convenience without direct food handling.
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 quick and convenient cooling of items within the backpack, maintaining thermal insulation without removing products, making it suitable for emergency use and easy operation.
Implementation Method 1
a lower end of the return spring is connected with the connecting disc, and an upper end of the return spring is connected with the sealing screen
Data Source
AI summary
A thermal insulation backpack comprises a main body and an adapter assembly. The main body has a thermal insulation accommodation cavity and a connection hole in communication with the thermal insulation accommodation cavity. The adapter assembly comprises a fixing frame, a sealing screen, and a reset assembly. An outer periphery of the sealing screen has a sealing strip protruding outward. The fixing frame includes a connection recess and a first through slot. The first through slot is connected to the thermal insulation accommodation. The sealing screen is connected to the reset assembly. When the adapter assembly is not connected to an external cooling apparatus, the sealing strip presses against a lower end of the connection recess and when connected to an external cooling apparatus, the sealing screen moves toward the interior of the thermal insulation accommodation cavity and the connection recess is communicated with the first through slot.