Ventilation device and ventilation system
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Solution Overview
Problem
Existing ventilation devices lack wireless communication capabilities and suffer from suboptimal communication performance, which hinders user convenience.
Innovation Solution
A ventilation device with a metal main body case, a wireless communications unit, and a controller that controls an air blowing unit via wireless signals, optimizing the placement of the antenna within a specific geometric area to enhance communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication unit is added to ventilation device, then user convenience is improved, but device complexity increases
Solution Approach 1:
The ventilation device integrates multiple functions including air blowing, wireless communication, and control capabilities into a single unit. The main body case houses both the air blowing unit and wireless communication unit, allowing the device to serve as both a ventilation system and a wireless-controlled device, thereby improving user convenience without requiring separate control devices.
2Volume of moving object
If antenna is placed near opening edge for compact design, then device size is reduced, but communication performance deteriorates
Solution Approach 1:
The patent specifies a particular placement region for the antenna within the main body case, defined by geometric constraints relative to the opening edge. This localized placement strategy ensures that the antenna is positioned in an area that maintains adequate distance from the opening edge, thereby preserving communication performance while still achieving a compact overall device design.
Solution Approach 2:
The antenna placement is defined using three-dimensional geometric constraints involving multiple directions (first direction and second direction perpendicular to the first). By specifying the position in multiple dimensions relative to the opening edge, the patent achieves optimal antenna placement that balances compactness with communication performance.
3Strength
If metal main body case is used for durability, then strength is improved, but wireless communication may be interfered with
Solution Approach 1:
The patent specifies a particular placement region for the antenna within the metal main body case, defined by geometric constraints relative to the opening edge. This localized placement strategy positions the antenna in an area where the metal case has minimal impact on radio wave propagation, thereby maintaining both the structural advantages of the metal case and adequate wireless communication performance.
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 device achieves improved communication performance and user convenience by enabling wireless control and communication, allowing for efficient air ventilation and control through wireless signals.
Implementation Method 1
The wireless communications unit includes an antenna, and is configured to perform wireless communication by using a radio wave having a prescribed wavelength as a medium
Implementation Method 2
The air blowing unit is configured to blow air from the first opening to the second opening
Data Source
AI summary
When a main body case is viewed from below, an antenna is within a rectangular/square area defined by first to fourth points. An opening edge of a first opening includes: a first edge linearly along a first direction; and a second edge linearly along a second direction perpendicular to first direction, first point is defined as an intersection of a first straight line and a second straight line, first straight line includes first edge, and second straight line includes second edge. Second point is defined as a point apart from first point in first direction by a distance that is half prescribed wavelength. Third point is defined as a point apart from second point in second direction by a distance that is half prescribed wavelength. Fourth point is defined as a point apart from first point in second direction by a distance that is half prescribed wavelength.