Infrared Ear Thermometer Probe Trigger Mechanism

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Solution Overview

Problem

Conventional infrared ear-temperature measuring guns require a measuring button to be pressed, which complicates operation and reduces the stability and accuracy of temperature measurements, especially when measuring body temperature in infants.

Innovation Solution

An infrared temperature measuring apparatus with a trigger device connected between the casing and probe, allowing the probe to activate the infrared sensor assembly when moved towards the casing, eliminating the need for a measuring button and enhancing operational stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a measuring button is disposed on the casing to trigger the infrared sensor, then the device can be activated for measurement, but the operation becomes complex and the measurement stability is reduced

Engineering Contradiction:
Improveoperation simplicityVSAvoidmeasurement stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent removes the measuring button from the casing and integrates the triggering function directly into the probe. The probe itself becomes the trigger mechanism through its relative movement with respect to the casing, eliminating the separate button component and simplifying the user interaction to a single insertion motion that simultaneously positions the probe and activates measurement.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines the probe positioning function and the measurement triggering function into a single integrated mechanism. The relative movement between the probe and casing serves dual purposes: positioning the probe tip at the correct location and simultaneously activating the infrared sensor through the trigger device, merging two separate operations into one unified action.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If a measuring button is disposed on the casing, then the device can be controlled for measurement, but the user cannot easily press the button while aiming the device, reducing operational convenience

Engineering Contradiction:
Improvebutton pressing convenienceVSAvoidtemperature measurement accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent extracts the triggering function from the casing body and relocates it to the probe-casing interface. This eliminates the need for a separate button that requires manual pressing, allowing the user to simply insert the probe which automatically triggers the measurement, thereby maintaining both operational convenience and measurement accuracy.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The probe itself serves as the trigger mechanism through its own movement. The relative displacement between the probe and casing during insertion automatically activates the trigger device and initiates measurement without requiring any additional manual button-pressing action from the user, making the system self-activating.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If the probe is disconnected from the infrared sensor assembly, then the probe can be independently positioned, but the triggering mechanism becomes complex

Engineering Contradiction:
Improveprobe positioning flexibilityVSAvoidtrigger device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the probe positioning mechanism with the triggering mechanism by utilizing the relative movement between the disconnected probe and casing as the trigger input. The probe maintains its independent positioning capability while its movement relative to the casing directly activates the infrared sensor assembly, eliminating the need for complex additional triggering components.

Inventive Principle:
Principle #5Merging (Combining)

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 design simplifies the measurement process, reduces errors, and improves the convenience of temperature measurement by allowing the user to operate the device without manually pressing a button, ensuring stable and accurate readings.

Implementation Method 1

The subjects with different temperatures will respectively radiate infrared rays with different frequencies, so a device for receiving infrared rays could be used to detect the infrared rays in order to sense the temperature of a subject quickly

Methodology Applied
Scientific EffectInfrared radiation: Infrared Radiation

Data Source

PatentUS8371748B2Temperature measuring apparatus
Publication Date: 2013.02.12 AVITA CORP
  • US8371748B2 patent drawing
  • US8371748B2 patent drawing
  • US8371748B2 patent drawing

AI summary

A temperature measuring apparatus comprises a casing, an infrared sensor assembly, a probe, and a trigger device. The infrared sensor assembly is disposed in the casing. The trigger device is connected between the casing and the probe in such manner that when the probe moves toward the casing, the trigger device is activated by the probe to trigger the infrared sensor assembly to proceed sensing. The temperature measuring apparatus could be operated to measure without pressing any measuring button, so that the temperature measuring apparatus could have a stable operation in the measuring process. Hence, the error of the temperature measuring is reduced and the operation is more convenient.