Integrated Temperature Control in Field Devices
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Solution Overview
Problem
Existing field devices face challenges in effectively protecting against low-temperature extremes due to indirect heating technologies that increase power consumption and size, reducing installation flexibility and efficiency, especially in remote or limited-access applications.
Innovation Solution
A field device with integrated temperature control using a dedicated terminal block or external regulator block to directly regulate heat through a directly coupled heating element, where the internal temperature sensor controls the heater power, providing more direct and efficient temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If indirect heating technologies are used to protect against low-temperature extremes, then temperature protection is provided, but power consumption and device size increase
Solution Approach 1:
The heating element is integrated directly into the terminal block, merging the temperature control function with the existing electrical connection component. This eliminates the need for separate external heaters and environmental enclosures, reducing overall power consumption while maintaining reliable temperature protection for the electronics.
Solution Approach 2:
The terminal block serves as an intermediary component that directly couples the heating element to the electronics housing. This intermediary structure provides efficient thermal transfer to the critical electronic components while minimizing the energy required to achieve effective temperature protection.
2Reliability
If indirect heating technologies are used to protect against low-temperature extremes, then temperature protection is provided, but device size increases
Solution Approach 1:
The heating element is integrated directly into the terminal block, merging the temperature control function with the existing electrical connection component. This eliminates the need for separate external heaters and environmental enclosures, significantly reducing the overall device size envelope while maintaining reliable temperature protection.
Solution Approach 2:
The terminal block performs multiple functions: electrical connection, signal routing, and temperature control via the integrated heating element. This multi-functionality eliminates the need for separate dedicated heating components and environmental enclosures, reducing device size.
3Reliability
If separate environmental enclosures are used, then temperature control is provided, but installation flexibility is reduced
Solution Approach 1:
The heating element is integrated directly into the terminal block, merging the temperature control function with the existing electrical connection component. This eliminates the need for separate environmental enclosures, significantly improving installation flexibility in remote or limited-access applications while maintaining reliable temperature control.
Solution Approach 2:
The temperature control function is extracted from the concept of a separate environmental enclosure and integrated directly into the terminal block. This extraction allows the system to achieve temperature control without the bulk and installation complexity of traditional environmental enclosures.
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 enhances protection against low-temperature extremes by reducing power consumption and size, increasing reliability and flexibility, particularly in remote installations, while eliminating the need for a separate environmental enclosure.
Implementation Method 1
a heater coupled to the field device that heats the field device in response to the temperature control signal
Implementation Method 2
an internal temperature sensor that generates a temperature control signal as a function of an internal temperature of the field device
Data Source
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AI summary
A field device [10] with integrated temperature control comprises a housing [12], a temperature sensor [16], a controller [14] and a terminal block [16]. The housing [12] encloses internal components of the field device. The temperature sensor [16] and the controller [14] are located inside the housing [12]. The temperature sensor [16] senses an internal temperature of the field device, and the controller [14] controls the internal temperature by regulating heat supplied to the field device. The terminal block [15] connects to the controller [14] in order to regulate the heater power as a function of the internal temperature.