Handheld Vacuum Cleaner PCB Segmentation for Compact Handle Assembly
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Solution Overview
Problem
Existing handheld vacuum cleaners face challenges in installing the main PCB due to limited internal space in the handle, leading to complex structures and difficulty in reducing the handle size.
Innovation Solution
A cleaner design that includes a main PCB assembly with a first and second PCB spaced apart, connected via a PCB connector, which is easily inserted into the handle unit without specific fasteners, allowing for reduced handle size and simplified installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
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 difficult to install
Solution Approach 1:
The main PCB is divided into a first PCB and a second PCB that are spaced apart from each other and connected via a PCB connector. This segmentation allows the PCB assembly to fit into the limited internal space of the handle while simplifying the installation structure, as each PCB can be independently positioned and connected without requiring complex mounting mechanisms.
Solution Approach 2:
The first and second PCBs are arranged in a spatial configuration where they are spaced apart along a specific dimension (e.g., vertically or horizontally within the handle). This dimensional arrangement optimizes the use of available internal space and eliminates the need for complicated installation structures by leveraging the three-dimensional space within the handle.
2Volume of moving object
If the main PCB is divided into multiple PCBs spaced apart, then the handle size can be reduced, but the PCB installation structure becomes more complex
Solution Approach 1:
Dividing the main PCB into multiple smaller PCBs (first PCB and second PCB) allows them to be arranged in a compact configuration within the handle, reducing the overall handle size. The segmentation enables each PCB to occupy a smaller, more efficiently utilized portion of the internal space.
Solution Approach 2:
The PCB connector acts as an intermediary component that connects the first PCB and the second PCB. This intermediary element simplifies the overall installation structure by providing a straightforward connection mechanism between the segmented PCBs, eliminating the need for complex wiring or mounting arrangements.
3Ease of operation
If the first PCB and second PCB are connected via a PCB connector, then the installation is simplified and no specific fastener is needed, but the connector structure adds complexity
Solution Approach 1:
The PCB connector combines multiple functions into a single component: it provides electrical connection between the first and second PCBs, mechanical support for both PCBs, and positioning alignment. This merging of functions simplifies the installation process by eliminating the need for separate fasteners, mounting brackets, and wiring harnesses.
Solution Approach 2:
The PCB connector is designed as a multi-functional component that serves as both a connection element and a mounting element. It universally accommodates both the first PCB and the second PCB, providing a standardized interface that simplifies installation and eliminates the need for PCB-specific fastening mechanisms.
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 easy installation of the main PCB, reduces handle size, and improves airflow efficiency by minimizing airflow loss, resulting in increased suction force and battery life while ensuring safe and balanced weight distribution.
Implementation Method 1
a suction motor that generates suction force
Data Source
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.