Device for self-adaptive regulation of air volume and refrigerator having same
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Solution Overview
Problem
Existing air volume regulating devices in refrigerators are inflexible and unable to adjust air supply in real-time according to the temperature of the refrigerating chamber, and they often require costly and complex electric dampers that are prone to malfunction.
Innovation Solution
A self-adaptive air volume regulation device featuring a funnel-shaped air collecting cavity, a conical air outlet cavity, and a division tongue that creates two outlet ducts, allowing the fan to adjust air volume based on temperature needs by directing cold air through the first and second outlet ducts, eliminating the need for manual or electric dampers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual dampers are used to control air volume, then the structure is simple and cost is low, but the regulation is inconvenient and cannot respond to temperature changes in real time
Solution Approach 1:
The patent employs a dynamic air volume regulation mechanism where the fan speed can be adjusted in real-time based on temperature feedback. The control unit dynamically changes the fan's rotation speed to adapt to varying temperature conditions, transforming a static manual damper system into a dynamic responsive system that automatically adjusts air flow without manual intervention.
Solution Approach 2:
The patent implements a feedback control system where temperature sensors continuously monitor the refrigerating chamber temperature and transmit this information to the control unit. The control unit processes this feedback and adjusts the fan speed accordingly, creating a closed-loop system that enables real-time adaptation to temperature changes, resolving the contradiction between operational simplicity and real-time adaptability.
2Adaptability or versatility
If electric dampers are used to control air volume, then real-time temperature regulation is achieved, but the cost increases and the assembly structure becomes complicated
Solution Approach 1:
The patent extracts and eliminates the complex electric damper component from the system entirely. Instead of using an electric damper with multiple parts and complex assembly, the invention uses a simplified fan-based air volume control system where air flow regulation is achieved by adjusting fan speed through electronic control, thereby maintaining real-time adaptability while significantly reducing structural complexity.
Solution Approach 2:
The patent replaces the mechanical electric damper system with an electronically controlled fan system. The physical mechanism of a damper blade moving to block or open air passages is substituted with an electronic control system that adjusts fan rotation speed to control air flow volume, achieving the same functional result with simpler mechanics and fewer moving parts.
3Adaptability or versatility
If electric dampers are used to control air volume, then real-time temperature regulation is achieved, but the reliability decreases due to frequent failures
Solution Approach 1:
The patent employs a fan system with fewer critical components compared to electric dampers. The fan motor and control circuitry represent a simpler, more reliable architecture with fewer moving parts that can fail. By using this alternative system, the patent achieves real-time temperature adaptation while improving reliability through a design that is inherently less prone to mechanical failure and easier to maintain.
4Device complexity
If manual dampers are used to control air volume, then the device complexity is low, but the cooling efficiency is insufficient due to delayed response
Solution Approach 1:
The patent creates a dynamic air volume control system where the fan speed can be rapidly adjusted in response to temperature changes. This dynamic capability allows the system to quickly respond to cooling demands, improving cooling efficiency by delivering the appropriate air flow volume timely, while maintaining relative structural simplicity through the use of a standard fan motor controlled by electronic speed control circuitry.
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 enables real-time adjustment of air volume to match temperature demands, improving cooling efficiency, flexibility, and reducing assembly complexity and costs by eliminating the need for electric dampers, thus enhancing the overall performance of the refrigerator.
Implementation Method 1
a fan (3) provided inside the funnel-shaped air collecting cavity (11); wherein by means of rotation of the fan (3), cold air is conveyed through the first outlet duct (122) and/or the second outlet duct (123) and into the refrigerating chamber (202)
Data Source
AI summary
Provided are a device (100) for self-adaptive regulation of air volume and a refrigerator (200) having the same. The regulating device (100) comprises: a drainage and air guide cavity (1), arranged on the back of a freezing chamber (201) of a refrigerator, the drainage and air guide cavity (1) comprising a funnel-shaped air collecting cavity (11) and a conical air outlet cavity (12) connected to the funnel-shaped air collecting cavity (11), an outlet of the conical air outlet cavity (12) facing a refrigerating chamber; a drainage tongue (2), provided in the conical air outlet cavity (12) so as to create a first outlet duct (122) and a second outlet duct (123) within the conical air outlet cavity (12), an inlet (20a) of the first outlet duct (122) being located on an extension line of a left side wall (113) of the funnel-shaped air collecting cavity (11) and an inlet (21a) of the second outlet duct (123) being located on an extension line of a right side wall (112) of the funnel-shaped air collecting cavity (11); and a fan (3) arranged inside of the funnel-shaped air collecting cavity (11). By rotating the fan (3), cold air is conveyed through the first outlet duct (122) and the second outlet duct (123) and into a refrigerating chamber (202) under the guide of the left side wall (113) or right side wall (112) of the funnel-shaped air collecting cavity (11).