Vacuum Cleaner Segmented PCB Assembly for Compact Handle Installation
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Solution Overview
Problem
Existing cleaners face challenges in easily installing and fixing the main Printed Circuit Board (PCB) within the handle due to limited internal space, leading to complex structures and difficulties in reducing the PCB size.
Innovation Solution
The cleaner design divides the main PCB into two separate PCBs that are inserted into the handle body in a parallel orientation, connected by a PCB connector, allowing for easy assembly and fixing without the need for additional fasteners, thereby minimizing the overall size and simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the airflow generator is disposed over the handle and the power supply is disposed under the handle, then the internal space of the handle is limited, but the structure for installing the PCB becomes complicated and it becomes difficult to install the PCB
Solution Approach 1:
The main PCB is divided into two separate PCBs (first PCB and second PCB) that can be independently installed in the handle. This segmentation allows each PCB to be positioned in available spaces without requiring a complex integrated installation structure, thereby simplifying the overall installation process while accommodating the limited internal space of the handle
2Volume of moving object
If the main PCB is divided into two PCBs and inserted in the handle body, then the size of the main PCB can be reduced, but additional PCB connector is needed
Solution Approach 1:
The first PCB and second PCB are electrically connected through a PCB connector that integrates with the handle unit. This merging of connection functions into the existing handle structure eliminates the need for separate additional components, reducing overall device complexity while maintaining the size reduction benefit of dividing the main PCB
3Volume of moving object
If the two PCBs are erect in parallel with each other and inserted in the handle body, then the size of the main PCB unit can be minimized, but the assembly structure becomes more complex
Solution Approach 1:
The PCB connector is pre-integrated with the handle unit during manufacturing, creating a ready-to-receive structure for the two PCBs. This preliminary preparation of the connection interface simplifies the final assembly process, as the PCBs can be directly inserted into the pre-configured handle structure without requiring complex assembly operations
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 allows for a reduced size of the main PCB unit, simplifies the assembly process, and eliminates the need for connecting the second PCB to the connector during assembly, enhancing user convenience and reducing the complexity of the structure.
Implementation Method 1
a suction motor that generates suction force
Data Source
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AI summary
A cleaner includes: a suction motor that generates suction force; a suction unit that guides air and dust sucked by the suction force generated by the suction motor; a dust separation unit that separates dust from the air guided through the suction unit; a main PCB that generates control signals for the suction motor and includes a first PCB and a second PCB spaced apart from each other; a handle unit that receives the main PCB; and a PCB connector that connects the first PCB and the second PCB to each other and is coupled to the handle unit.