Temperature control device and temperature adjustment apparatus
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Solution Overview
Problem
Conventional temperature control devices face difficulties in calculating control parameters in real time when the number of temperature adjustment target parts increases, making it challenging to effectively control the temperature of multiple target parts.
Innovation Solution
A temperature control device with a communication module connected via a field network, an arithmetic operation module, and a signal output module, which periodically receives and calculates control parameters for each temperature adjustment target part using target and refrigerant temperature information to adjust the opening degree of control valves, allowing for efficient temperature control across multiple refrigerant circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of temperature adjustment target parts increases, then the temperature control capability is improved, but the calculation burden on the main CPU board increases making real-time control difficult
Solution Approach 1:
The patent divides the control system into multiple independent temperature control devices, each responsible for one temperature adjustment target part. Each device includes its own temperature sensor, actuator, and control logic, allowing parallel operation and eliminating the calculation bottleneck of a centralized CPU when controlling multiple targets.
Solution Approach 2:
Each temperature control device is designed as a universal module that can control any temperature adjustment target part. The standardized interface and control logic allow the same device structure to be replicated for multiple targets without increasing system complexity.
2Reliability
If the main CPU board calculates control parameters for multiple target parts, then comprehensive temperature control is achieved, but real-time calculation becomes difficult
Solution Approach 1:
The centralized calculation function is segmented and distributed to individual temperature control devices. Each device independently calculates its own control parameters based on local temperature feedback, eliminating the need for complex centralized calculations and enabling real-time responsive control.
Solution Approach 2:
Each temperature control device is self-sufficient, autonomously sensing its target part's temperature, calculating required adjustments, and actuating its control valve without requiring centralized CPU intervention. This self-service capability ensures real-time control responsiveness.
3Device complexity
If a single refrigerant circuit is used for multiple target parts, then system simplicity is maintained, but individual temperature control for each part becomes difficult
Solution Approach 1:
The single refrigerant circuit is segmented into multiple independent control zones, each with its own temperature control device and actuator. This allows the system to maintain the simplicity of a single refrigerant loop while achieving independent temperature control for each target part through distributed control elements.
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 proper temperature control even when the number of temperature adjustment target parts increases, by efficiently calculating and applying control parameters to maintain target temperatures through the use of a field network and modularized components.
Implementation Method 1
adjusting the opening degree of the expansion valve capable of adjusting the refrigerant flow rate in the refrigerant passage
Implementation Method 2
the evaporator vaporizes the decompressed low-pressure refrigerant in a gas-liquid mixed state
Implementation Method 3
the condenser condenses the high-pressure gas
Implementation Method 4
The refrigerant passage and the brine passage are provided with temperature sensors, respectively, and the workpiece temperature is detected from a temperature sensor
Data Source
AI summary
A temperature control device for controlling a temperature of a temperature adjustment target part is provided. A communication module of the temperature control device is configured to store target temperature information of each of the temperature adjustment target parts included in a communication frame periodically received via a field network in a predetermined position of a memory, and an arithmetic operation module of the temperature control device receives the target temperature information of each of the temperature adjustment target parts, receives refrigerant temperature information from each of temperature sensors corresponding to each of the temperature adjustment target parts, and calculates each of control parameter for adjusting an opening degree of each corresponding control valve so that each temperature of the temperature adjustment target parts becomes a target temperature indicated by the received target temperature information based on the received target temperature information and the received refrigerant temperature information.