Refrigerator
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Solution Overview
Problem
Conventional refrigerators often have large temperature fluctuations in storage chambers, which can negatively impact the quality of stored goods, especially temperature-sensitive items like wine, cosmetics, and medical supplies, as they fail to maintain stable temperature ranges effectively.
Innovation Solution
The refrigerator incorporates a temperature adjusting device with both cooling and heating capabilities, utilizing evaporators, thermoelectric elements, and airflow mechanisms to maintain a storage chamber temperature difference of less than 3°C, and includes partition members and inner guides to create separate temperature zones with precise temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional refrigerators use single-zone cooling systems, then the cooling function is simple and device complexity is low, but temperature stability deteriorates with large fluctuations exceeding acceptable ranges for sensitive goods
Solution Approach 1:
The storage chamber is divided into multiple temperature zones (first storage chamber and second storage chamber) with independent temperature control. Each zone has its own evaporator and temperature adjusting device, allowing independent temperature management to maintain stability in each zone without affecting others.
Solution Approach 2:
The refrigerator employs dynamic temperature adjustment capabilities with both cooling and heating functions. The temperature adjusting device can actively modify temperatures in response to detected conditions, enabling the system to adapt and maintain stable temperatures despite external variations or door openings.
2Manufacturing precision
If the refrigerator uses multiple evaporators for independent zone control, then temperature control precision improves, but device complexity and manufacturing cost increase
Solution Approach 1:
The system uses separate evaporators for different storage chambers to achieve independent temperature control. The first evaporator serves the first storage chamber while the second evaporator serves the second storage chamber, enabling precise temperature management in each zone without interference.
Solution Approach 2:
The temperature adjusting device can switch between cooling and heating modes to precisely control temperatures. By changing operational parameters (cooling/heating) rather than adding complex mechanical components, the system achieves precise temperature control while managing device complexity.
3Reliability
If the refrigerator maintains strict temperature ranges, then quality of stored goods improves, but energy consumption increases due to continuous cooling operation
Solution Approach 1:
The refrigerator dynamically adjusts its operation by switching between cooling and heating modes based on actual temperature conditions. The temperature adjusting device activates heating when needed to maintain temperature ranges, reducing unnecessary continuous cooling operation and thereby lowering energy consumption while still maintaining goods quality.
Solution Approach 2:
The system changes its operational parameter from continuous cooling to conditional heating/cooling cycles. By monitoring temperature and only activating cooling when necessary rather than continuous operation, the system maintains temperature ranges for goods quality while significantly reducing energy consumption.
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 solution allows for the precise temperature control of multiple storage chambers within the refrigerator, minimizing quality reduction of stored goods by maintaining stable temperature ranges, ensuring optimal conditions for temperature-sensitive items.
Implementation Method 1
a first cooler and a heater configured to adjust the temperature of the first storage chamber
Implementation Method 2
utilizing evaporators, thermoelectric elements, and airflow mechanisms
Implementation Method 3
utilizing evaporators, thermoelectric elements, and airflow mechanisms
Data Source
AI summary
A refrigerator includes a cabinet configured to be formed with a first storage chamber and a second storage chamber, a first door configured to open and close the first storage chamber, a second door configured to open and close the second storage chamber, a first cooler and a heater configured to adjust the temperature of the first storage chamber, a second cooler configured to adjust a temperature of the second storage chamber, and a controller configured to perform a general operation of the first storage chamber in preference to door load response operation of the second storage chamber, of the general operation of adjusting the temperature of the first storage chamber and the door load response operation of the second storage chamber.