Hand Dryer Blower Housing Segmentation for Circuit Board Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional hand dryer structures require complete disassembly and reassembly of the main body housing to replace the control circuit board, leading to a cumbersome process.
Innovation Solution
The blower of a hand dryer features an integrated air flow generation module with a separable design, allowing the control circuit board to be exposed and replaced by separating a second sub-shell without disassembling other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control circuit board is integrated within the main body housing, then the housing structure is stable and complete, but the replacement of the control circuit board requires complete disassembly and reassembly of the main body housing, greatly increasing the disassembly and assembly processes
Solution Approach 1:
The main body housing is divided into multiple segments: the first half shell, second half shell, first sub-shell, second sub-shell, and air guiding cover. The control circuit board is specifically integrated into the first sub-shell, which can be independently separated from other components. This segmentation allows the control circuit board to be accessed and replaced by only disassembling the first sub-shell and second sub-shell, while the rest of the housing structure remains intact and stable.
2Reliability
If multiple housings are used to support the electric motor, then the motor is stably supported and given corresponding functions, but the overall device complexity increases
Solution Approach 1:
The housing structure is segmented into functional modules: the first half shell and second half shell form the main support structure for the electric motor, while the first sub-shell and second sub-shell form a separate accessible module for the control circuit board. The air guiding cover is another independent module. This segmentation provides stable motor support through the half shells while reducing overall complexity by allowing independent access to different components without disassembling the entire housing structure.
Data Source
AI summary
A blower of a hand dryer includes an air flow generation module and a blower housing. The air flow generation module includes an air case, an electric motor and a control circuit board The air case includes an air inlet and an air outlet gap. The blower housing is provided with the air flow generation module. The blower housing includes a first half shell and a second half shell. The second half shell includes a first sub-shell and a second sub-shell capable of being separated from the first sub-shell. The first sub-shell includes an opening. The opening is provided for installing the air flow generation module and exposing the control circuit board outside of the first sub-shell, the second sub-shell is mounted on the opening, and when the second sub-shell is separated from the first sub-shell, the control circuit board is being exposed.