Wearable Environmental Sensor Black Bulb Welding and Nesting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional WBGT meters and environmental sensors are too large to be worn on the body and are inconvenient to carry, and there is a lack of small wearable devices that can accurately measure environmental conditions inside clothing or on the body.
Innovation Solution
A wearable environmental sensor device with a black-bulb temperature sensor and temperature sensor housed in a compact, lightweight structure, featuring a black bulb with an insertion hole and guide portion, and a housing with protruding portions for secure welding, allowing for accurate measurement of temperature, humidity, and environmental information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional WBGT meters or environmental sensors are used, then environmental information can be measured, but the device size becomes too large to be worn on the body or carried conveniently
Solution Approach 1:
The device is segmented into functionally independent modules: black bulb temperature sensor unit, humidity sensor unit, temperature sensor unit, and control unit. Each module performs a specific measurement function, allowing the overall device to be compact while maintaining comprehensive environmental monitoring capabilities.
Solution Approach 2:
The black bulb temperature sensor is nested within the housing, with the temperature sensor inserted into the black bulb through an insertion hole. The humidity sensor and other components are arranged within the same housing structure, creating a compact nested configuration that minimizes device volume while preserving all measurement functions.
2Volume of moving object
If the environmental sensor is made smaller to be wearable, then the device can be worn on clothing or body, but it becomes more difficult to realize highly reliable formation and thermal insulation of the internal structure such as black bulb
Solution Approach 1:
The housing is designed with differentiated local properties: the outer surface provides thermal insulation, while the insertion hole in the black bulb bottom allows thermal connection to the temperature sensor. The weld portion is strategically positioned to provide localized thermal insulation between the black bulb and housing, ensuring reliable measurement despite the compact size.
Solution Approach 2:
The guide portion acts as an intermediary structure that facilitates precise positioning of the black bulb within the housing during assembly. The weld portion serves as an intermediary thermal barrier, providing controlled thermal insulation between the black bulb and housing while maintaining structural integrity in the compact design.
3Ease of operation
If a compact wearable design is implemented, then the device can be easily worn and carried, but the structural complexity of assembling and insulating internal components increases
Solution Approach 1:
The guide portion is pre-formed on the black bulb, and the protruding portion is pre-formed on the housing, establishing predetermined positioning features before assembly. This preliminary preparation simplifies the assembly process by guiding components into correct positions automatically, reducing the complexity of manual alignment and insulation installation in the compact wearable device.
Solution Approach 2:
Multiple functions are merged into single components: the guide portion simultaneously provides positioning guidance and structural support; the weld portion combines thermal insulation with structural attachment; the insertion hole serves both as a mounting feature and thermal pathway. This merging reduces the number of separate parts and simplifies assembly in the compact device.
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 accurate, easy, and stable measurement of environmental conditions near the human body, including temperature and humidity, while being compact and wearable.
Implementation Method 1
a black-bulb temperature sensor including a black bulb and a temperature sensor for measuring internal temperature in the black bulb
Implementation Method 2
a temperature sensor for measuring internal temperature in the black bulb
Data Source
AI summary
A wearable environmental sensor is configured to measure environmental information regarding a place where the device is worn, and includes a black-bulb temperature sensor including a black bulb and a temperature sensor for measuring internal temperature in the black bulb, the black-bulb temperature sensor being in a housing, wherein the black bulb includes an insertion hole into which the temperature sensor is inserted, the black bulb includes a weld portion welded to the housing, in an outer-circumferential portion of the bottom surface, the black bulb includes a guide portion in an outer-circumferential portion around the insertion hole, the housing includes an insertion opening into which the guide portion of the black bulb is inserted, the housing includes a protruding portion at an outer-circumferential portion around the insertion opening, and the guide portion is supported by the protruding portion.