Portable Motor and Pump Head Coupling for Multi-Care Tools
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Solution Overview
Problem
Existing personal care devices, such as electric toothbrushes, razors, and water flossers, are limited by their single-function design, high cost, non-portability, complexity of charging, environmental impact, and low utilization rates due to separate components and charging requirements.
Innovation Solution
A multifunctional portable tool with a motor and pump head that can be connected and disconnected, allowing it to drive various personal care devices and function as a pump, reducing the need for multiple devices and charging lines, while being environmentally friendly and extensible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate personal care apparatuses are used to achieve different functions, then functional versatility is improved, but device complexity and cost increase
Solution Approach 1:
The motor assembly is designed to perform multiple functions by connecting with different pump heads or personal care device heads. The same motor can drive water flossers, nasal irrigators, electric toothbrushes, electric razors, nail grinders, and other personal care devices, eliminating the need for separate motors in each device and reducing overall complexity.
Solution Approach 2:
The system is divided into a reusable motor assembly and replaceable pump heads or device heads. This segmentation allows the core motor component to be shared across multiple functions while the specialized components (pump heads) are exchanged based on the desired function, reducing the need to own multiple complete devices.
2Adaptability or versatility
If multiple separate personal care apparatuses are purchased independently, then functional versatility is improved, but cost increases
Solution Approach 1:
By designing a universal motor assembly that can work with multiple types of pump heads and device heads, the system allows users to obtain multiple functions from a single purchase. Users only need to buy the motor assembly once and then exchange heads as needed, significantly reducing the total cost compared to purchasing separate devices for each function.
Solution Approach 2:
The invention merges the common components (motor, battery, control circuitry) into a single shared motor assembly that serves multiple functions. This consolidation eliminates redundant components across multiple devices, reducing the overall cost of ownership while maintaining functional versatility.
3Adaptability or versatility
If various personal care apparatuses are used simultaneously, then functional versatility is improved, but portability deteriorates due to large space occupation
Solution Approach 1:
The pump heads and device heads are designed to be stored within or attached to the motor assembly when not in use. The compact design allows multiple heads to be nested or clipped onto the motor housing, transforming the system from multiple separate bulky devices into a single compact unit that can be easily carried in a bag or even a pocket.
4Adaptability or versatility
If multiple separate personal care apparatuses are used, then functional versatility is improved, but charging complexity increases due to multiple charging lines and methods
Solution Approach 1:
The motor assembly incorporates a universal charging interface that can charge the single battery unit regardless of which pump head or device head is attached. This eliminates the need for different charging cables and methods for each device, as all functions share the same power source and charging mechanism, greatly simplifying the charging process.
5Reliability
If each personal care apparatus includes its own battery, motor and PCBA, then functional independence is improved, but environmental friendliness deteriorates due to low utilization rate
Solution Approach 1:
The motor assembly serves as a universal platform that can perform multiple functions by connecting with different heads. This increases the utilization rate of the battery, motor, and control circuitry, as they are used across multiple applications rather than sitting idle in single-function devices. The extended usage period and reduced e-waste improve environmental sustainability.
Solution Approach 2:
The design allows for the recovery and reuse of the motor assembly components (battery, motor, PCBA) across multiple device heads. Instead of discarding the entire device when one function is no longer needed, users can detach the old head and attach a new one, recovering and reusing the expensive and environmentally sensitive components.
6Ease of manufacture
If each personal care apparatus has a fixed plug design, then manufacturing simplicity is improved, but adaptability deteriorates as plugs cannot be replaced
Solution Approach 1:
The system is segmented into a standardized motor assembly interface and interchangeable pump heads or device heads. The standardized interface allows different heads to be connected to the same motor assembly, providing extensibility without complicating the manufacturing of the core motor unit. The standardized connection mechanism maintains manufacturing simplicity while enabling adaptability.
Solution Approach 2:
The motor assembly is designed with a universal connection interface that can accommodate multiple types of pump heads and device heads. This universal interface maintains relatively simple manufacturing processes while dramatically improving adaptability, as the same motor assembly can work with various heads through the standardized connection mechanism.
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 multifunctional portable tool provides multiple functions, reduces costs, simplifies charging, enhances portability, and promotes environmental sustainability by allowing various attachments to be used with a single device, improving efficiency and extending the life of components.
Implementation Method 1
a first reset mechanism disposed between the motor and the pump head... a second working state in which the pump head is driven by the first reset mechanism to move away from the motor
Data Source
AI summary
A multifunctional portable tool is provided, which includes a housing; a motor received in the housing and having a first output end; a pump head movably received in the housing and having a driven shaft that is connectable with the first output end; and a first reset mechanism disposed between the motor and the pump head. The multifunctional portable tool has a first working state in which the driven shaft of the pump head is connected with the first output end of the motor so that the pump head and the motor together function as a pump, and a second working state in which the pump head is driven by the first reset mechanism to move away from the motor until the driven shaft of the pump head is disconnected with the first output end of the motor.