Ventilating device

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Solution Overview

Problem

The existing ventilating devices have laborious installation and removal processes for sensors and circuit boards, making maintenance inconvenient and time-consuming.

Innovation Solution

The ventilating device design integrates the circuit board box and sensor storage unit into a single piece, allowing for easy assembly and disassembly, with strategically positioned components to minimize airflow disruption and facilitate maintenance, including an operation opening for lead detachment and an insertion opening for reattachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the sensor and circuit board are connected via a lead to a terminal on the circuit board, then the sensor can be connected to the control circuit board for sensing and control, but the maintenance and replacement of the sensor or circuit board becomes laborious and time-consuming

Engineering Contradiction:
Improveconnection reliabilityVSAvoidmaintenance convenience
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The circuit board box is divided into functionally independent compartments: a sensor storage unit and a control circuit board storage unit. This segmentation allows the sensor and circuit board to be independently accessed, removed, and replaced without affecting each other, eliminating the need to disconnect leads during maintenance operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor and circuit board are extracted from a unified mounting structure and placed into separate storage units within the circuit board box. This extraction enables independent maintenance of each component - the sensor can be removed from its storage unit without touching the circuit board or its connections to the air blower.

Inventive Principle:
Principle #2Taking out (Extraction)

2Measurement precision

If the sensor is placed proximate to the air inlet for accurate temperature and humidity detection, then the sensing accuracy is improved, but the complexity of connecting the sensor to the circuit board increases

Engineering Contradiction:
Improvetemperature and humidity sensing accuracyVSAvoidconnection structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The sensor storage unit is integrated into the circuit board box structure, combining the functions of sensor housing, circuit board housing, and mounting structure into a single unified component. This merging eliminates the need for separate mounting brackets, leads, and connection terminals, reducing overall structural complexity while maintaining accurate sensing capability.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10655887B2Ventilating device
Publication Date: 2020.05.19 PANASONIC ECOLOGY SYSTEMS GUANGDONG CO LTD
  • US10655887B2 patent drawing
  • US10655887B2 patent drawing
  • US10655887B2 patent drawing

AI summary

A ventilating device includes: a frame formed with an external profile; an air inlet provided in the frame; an air outlet provided in the frame; an air blower for guiding air from the air inlet to the air outlet; a control circuit board connected to the air blower and configured to control operation of the air blower; and a circuit board box for housing the control circuit board; wherein the circuit board box comprises an integrally formed sensor storage unit for storing a sensor connected to the control circuit board and capable of sensing humidity or temperature. The ventilating device of the present disclosure may use less components, facilitate assembly and disassembly of components, and improve convenience in maintenance.