Hair Care Device Torque-Based Pump Control
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Solution Overview
Problem
Existing hair care devices do not adequately control the output of cosmetic components based on their properties, leading to unsuitable spraying.
Innovation Solution
A hair care device that includes a detector to measure the torque of the liquid feed pump and a controller to adjust the output of the pump based on the detected torque, ensuring appropriate spraying of cosmetic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pump output is not controlled based on cosmetic component properties, then the device structure remains simple, but the spraying suitability deteriorates
Solution Approach 1:
The system uses the pump motor's own torque as the detection parameter to automatically identify cosmetic component properties and adjust pump output accordingly, eliminating the need for separate sensors or complex control mechanisms while achieving adaptive spraying control
Solution Approach 2:
The controller changes the pump output parameter based on the detected torque parameter, adjusting the motor output to match the requirements of different cosmetic components (water-soluble vs. oil-soluble) and achieve suitable spraying performance
2Manufacturing precision
If a torque detector is added to detect pump torque, then the spraying control precision improves, but the device complexity increases
Solution Approach 1:
The system reuses the existing motor drive circuitry and torque detection capabilities to monitor the pump motor's torque output, eliminating the need for separate detectors while achieving precise control of spray output based on cosmetic component properties
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 ensures that cosmetic components are suitably sprayed by controlling the pump output based on the detected torque, addressing the issue of unsuitable spraying in existing devices.
Implementation Method 1
a torque sensor configured to detect torque of a motor of the liquid feed pump
Implementation Method 2
the controller adjusts an output of the liquid feed pump based on the detection value
Data Source
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AI summary
A hair care device according to the present disclosure includes a tank that stores a liquid, a liquid feed pump that outputs the liquid stored in the tank, and a controller that controls an output of the liquid feed pump. The hair care device according to the present disclosure further includes a detector that detects torque of the liquid feed pump. The controller adjusts the output of the liquid feed pump based on a detection value of the detector. Thus, the hair care device that suitably sprays a cosmetic component is provided.