Vending machine refrigeration module
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Solution Overview
Problem
Vending machine refrigeration modules operate in a fixed-speed full-speed mode, leading to inefficient temperature regulation and high energy waste due to non-automatic adjustment of compressor and fan speeds.
Innovation Solution
A vending machine refrigeration module with a controller that adjusts the motor speed of the compressor and fan speeds of the condenser and evaporator based on temperature differences detected by a temperature sensor, allowing for automatic and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed-speed full-speed operation mode is used, then the refrigeration system can maintain stable operation, but the energy utilization rate is low and energy waste occurs
Solution Approach 1:
The patent applies variable frequency technology to transform the fixed-speed compressor and fan into dynamically adjustable components. The controller receives temperature feedback from sensors and automatically adjusts the motor speeds of the compressor, condenser fan, and evaporator fan according to actual refrigeration needs, thereby improving energy utilization while maintaining stable operation.
Solution Approach 2:
The patent implements a closed-loop control system where temperature sensors continuously monitor the refrigeration compartment temperature and feed back to the controller. The controller compares the detected temperature with the set temperature and adjusts the compressor and fan speeds accordingly, achieving both stable operation and energy efficiency through automatic feedback regulation.
2Device complexity
If fixed-speed full-speed operation mode is used, then the system structure is simple, but automatic temperature regulation cannot be achieved
Solution Approach 1:
The patent enables the refrigeration system to automatically regulate its own operation through the controller that receives temperature feedback and autonomously adjusts the compressor and fan speeds without manual intervention. The system serves itself by automatically maintaining the set temperature through variable frequency control based on real-time temperature conditions.
3Device complexity
If fixed-speed full-speed operation mode is used, then the control system is simple, but temperature regulation efficiency is poor
Solution Approach 1:
The patent transforms the static control system into a dynamic one by implementing variable frequency control. The controller adjusts the motor speeds of the compressor and fans based on real-time temperature feedback, enabling efficient and responsive temperature regulation while maintaining manageable system complexity through automated control algorithms.
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 reduces energy consumption by avoiding full-speed operation and improving energy utilization rates by dynamically adjusting the compressor and fan speeds according to temperature requirements.
Implementation Method 1
a temperature sensor configured to feed back a detected temperature value to the controller
Implementation Method 2
a compressor and a condenser operatively coupled to one another
Implementation Method 3
a compressor and a condenser operatively coupled to one another
Implementation Method 4
the vending machine refrigeration module comprises an evaporator
Data Source
AI summary
The invention belongs to the technical field of vending machines and provides a vending machine refrigeration module, including a compressor, an evaporator, a condenser controller and a temperature sensor. The temperature sensor feeds back a detected temperature value to the controller. The detected temperature value is compared with a set temperature value to automatically adjust the motor speed of the compressor, the fan speed of the evaporator, and the fan speed of the condenser. The refrigeration module provided by the invention can automatically adjust the rotation speed of the compressor motor, the evaporator fan and the condenser fan according to the temperature detected by the temperature sensor, thereby avoiding full speed operation and reducing energy consumption and avoiding energy waste, improving energy efficiency.