Constant temperature wine cabinet
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Solution Overview
Problem
Existing wine cabinets suffer from temperature fluctuations and insufficient low-temperature performance, and current constant temperature control methods are time-consuming and resource-intensive.
Innovation Solution
A constant temperature wine cabinet with a refrigeration unit, heating unit, temperature sensor, and control mainboard that adjusts compressor switch-on and switch-off temperatures based on actual compartment temperatures, using a damper component and heating wires to maintain consistent temperature through selective cooling and heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single refrigeration function is used in the wine cabinet, then the device complexity is reduced, but the temperature control precision deteriorates causing significant fluctuations in storage temperature
Solution Approach 1:
The patent divides the single refrigeration system into multiple independent evaporators, each serving specific compartments. This segmentation allows different compartments to be cooled independently with precise temperature control, resolving the contradiction between system simplicity and temperature precision.
Solution Approach 2:
The patent implements dynamic temperature control by enabling the compressor to operate in different modes (single refrigeration, single heating, or simultaneous cooling and heating) based on real-time temperature sensor feedback. This dynamic adjustment maintains precise temperature control while adapting to different storage requirements.
2Stability of the object's composition
If the compressor operates continuously to maintain low temperatures, then the temperature stability is improved, but the energy consumption increases and low-temperature performance deteriorates at ambient temperatures below 5°C
Solution Approach 1:
The patent implements periodic compressor operation with optimized start-stop cycles based on temperature thresholds. The compressor operates periodically rather than continuously, reducing energy consumption while maintaining temperature stability through controlled cycling.
Solution Approach 2:
The patent changes the operational parameters of the compressor by introducing separate switch-on and switch-off temperature settings for different operating modes. This allows optimization of compressor operation at different ambient temperatures, improving both energy efficiency and low-temperature performance.
3Manufacturing precision
If multiple evaporators and fans are installed for multiple compartments, then the temperature control precision is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent designs the evaporators and fans to serve multiple functions. Each evaporator can cool multiple compartments simultaneously, and fans are positioned to circulate air across multiple zones. This multi-functionality achieves precise temperature control without proportionally increasing the number of components.
Solution Approach 2:
The patent combines multiple temperature control functions into a single integrated system controlled by one mainboard. The mainboard coordinates multiple evaporators and fans, managing their operation to achieve precise temperature control in each compartment while avoiding the complexity of multiple independent control systems.
4Manufacturing precision
If constant temperature control methods involve dividing environmental temperature into several ranges with multiple test settings, then the temperature control precision is improved, but the development time and laboratory resources increase significantly
Solution Approach 1:
The patent incorporates preliminary temperature compensation algorithms in the control mainboard that pre-adjust for environmental temperature effects. This preliminary action reduces the need for extensive iterative testing during development, as the system is designed to compensate for environmental variations from the outset.
Solution Approach 2:
The patent implements real-time temperature feedback from sensors in each compartment to the mainboard, which automatically adjusts compressor operation and fan speeds. This closed-loop feedback system ensures precise temperature control is achieved through automated adjustment rather than manual testing and calibration.
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
Ensures consistent compartment temperatures by correcting compressor switch-on and switch-off temperatures, addressing temperature fluctuations and improving low-temperature performance.
Implementation Method 1
a refrigeration unit comprises a compressor, an evaporator, a fan, and an air duct component, utilizing the evaporator for cooling and the fan to deliver cold air formed by heat exchange with the evaporator into compartments within the cabinet body for cooling
Implementation Method 2
a heating unit for transferring heat generated by the heating unit into the compartments for heating
Data Source
AI summary
A refrigeration unit includes a compressor, an evaporator, a fan, and an air duct component, utilizing the evaporator for cooling and the fan to deliver cold air formed by heat exchange with the evaporator into compartments for cooling; a heating unit for transferring heat generated by the heating unit into the compartments for heating; a temperature sensor unit for detecting the actual temperature inside the compartments and the external environment temperature; and a control mainboard that selects cooling or heating based on the actual temperature within the compartments. When the control mainboard selects cooling by the refrigeration unit, the control mainboard obtains the actual environmental temperature, derives a corresponding correcting temperature difference according to the actual environmental temperature, and corrects the switch-on and switch-off temperatures of the compressor based on the corrected temperature difference; the compressor operates according to the switch-on and switch-off temperatures corrected by the corrected temperature difference.