Modular Dry Block Calibrator with Composite Radiators

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Solution Overview

Problem

Existing dry block temperature calibrators require disassembly of the entire machine for maintenance when a single component malfunctions, increasing maintenance costs and complexity.

Innovation Solution

A modular design for the dry block temperature calibrator allows independent assembly and disassembly of the furnace body, control board assembly, and measurement board assembly, along with innovative radiator designs that enhance heat dissipation efficiency and reduce weight, enabling separate maintenance of components without affecting the entire system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the furnace body is locked together with other parts in existing products, then the structural integrity is maintained, but the entire machine has to be disassembled for maintenance, greatly increasing maintenance cost

Engineering Contradiction:
Improvemaintenance accessibilityVSAvoiddisassembly complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The calibrator is divided into independent modular assemblies including furnace body assembly, control board assembly, and measurement board assembly. Each assembly can be independently disassembled and maintained without affecting other parts, allowing direct access to specific components for repair while maintaining overall structural integrity through standardized connection interfaces.

Inventive Principle:
Principle #1Segmentation

2Loss of energy

If traditional heat dissipation structures are used, then the heat dissipation function is provided, but the weight is excessive and heat dissipation efficiency is insufficient

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidradiator weight
Core Design Contradiction:
Loss of energyVSWeight of moving object

Solution Approach 1:

The radiator adopts a composite structure combining aluminum alloy material with optimized fin geometry. The aluminum alloy provides high thermal conductivity while the optimized fin structure increases heat dissipation surface area, achieving superior heat dissipation efficiency with reduced weight compared to traditional solid metal radiators.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The radiator design incorporates three-dimensional fin structures that extend heat dissipation surfaces in multiple directions. This dimensional expansion creates large heat dissipation area within compact volume, improving heat transfer efficiency while minimizing the addition of weight.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Volume of moving object

If the control board assembly is positioned close to the furnace body, then the device compactness is improved, but the harsh temperature condition near the furnace body affects other components

Engineering Contradiction:
Improvedevice compactnessVSAvoidtemperature exposure
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The control board assembly is extracted from the high-temperature zone near the furnace body and positioned in a separate temperature-controlled compartment. This spatial separation protects sensitive electronic components from thermal damage while maintaining device compactness through optimized arrangement of separated modules.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Thermal insulation barriers and heat shielding structures are introduced as intermediary elements between the furnace body and control board assembly. These intermediaries block harmful thermal radiation and convection while allowing compact positioning of components, protecting electronics from excessive temperature exposure.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

The modular design reduces maintenance costs and improves efficiency by allowing individual assemblies to be replaced without disassembling the entire machine, while the advanced radiators provide improved heat dissipation and reduced weight, enhancing the calibrator's performance and portability.

Implementation Method 1

a flow guide fan (26) is provided at the top of the control board assembly (2)... the flow guide fan (26) is mounted at the top of the switching power supply (22)

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 2

a heat dissipation block (23) is mounted on one side of the lower part of the control board (24), and the side of the control board (24) on which the heat dissipation block (23) is mounted faces the switching power supply (22)

Methodology Applied
Scientific EffectThermal Conduction: Conduction (thermal)

Implementation Method 3

radiators mounted on both sides of the foam thermal insulation body (11-2)... U-shaped cooling pipes with heat dissipation fins

Methodology Applied
Scientific EffectThermal Radiation: Thermal Radiation

Implementation Method 4

radiators mounted on both sides of the foam thermal insulation body (11-2)... U-shaped cooling pipes with heat dissipation fins

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 5

a furnace core (11) comprising a foam thermal insulation body (11-2)... the foam thermal insulation body (11-2) is also pre-formed with a plurality of sensor mounting via-holes

Methodology Applied
Scientific EffectThermal Insulation: Thermal Insulation

Implementation Method 6

a cooling fan (13) disposed below the furnace core (11)

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Data Source

PatentEP3739313B1Dry block temperature calibrator
Publication Date: 2024.06.19 BEIJING CONST INSTR TECH INC
  • EP3739313B1 patent drawingFigure 1~2
  • EP3739313B1 patent drawingFigure 3~4A
  • EP3739313B1 patent drawingFigure 4B~5

AI summary

A low-temperature dry body temperature calibrator, belonging to the technical field of temperature instrumentation calibration, being used for temperature calibration of an element of which the temperature is to be tested, and comprising a furnace body (1), a control panel assembly (2) and a housing which are of a modular design, the furnace body (1) and the control panel assembly (2) are assembled in the housing, the top surface of the housing is provided with a plurality of heat dissipation holes (62), the top of the control panel assembly (2) is spaced apart from the top surface of the housing, a flow guiding fan (26) is provided at the top of the control panel assembly (2), and a flow guiding plate (25) inclined to the heat dissipation holes (62) on the top surface of the housing is provided above the flow guiding fan (26). The provided furnace body (1) has a compact structure, and the radiators (11-1, 19-1) used therefor have a light weight and a high heat dissipation efficiency, improving the operation stability and temperature measurement accuracy of the furnace body (1), and the furnace body is suitable for temperature measurement of low-temperature elements of which the temperature is to be tested.