Oral Cleaner Pump Layout for Stable Shaft Flow Connections
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Solution Overview
Problem
The poor reliability of connections between the water pump and the flow channel of the output shaft in oral cleaners leads to easy detachment, affecting the stability and efficiency of the device.
Innovation Solution
The oral cleaning apparatus rearranges the motor, pump mechanism, and liquid storage cavity along a first axis, with the pump mechanism's inlet and outlet ends positioned closer to the storage cavity, and integrates the flow channels on a connector to enhance stability and reduce the risk of leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor and water pump are arranged with separate pipelines connecting them, then the device can achieve basic cleaning functions, but the connection reliability deteriorates due to vibration causing pipelines to detach
Solution Approach 1:
The patent integrates the water pump directly onto the motor's output shaft, merging two previously separate components into a unified assembly. This eliminates the need for separate pipelines connecting the motor and water pump, thereby resolving the reliability issue caused by vibration-induced detachment while simplifying the overall structure.
Solution Approach 2:
The water pump is positioned within or alongside the motor housing, with the pump's inlet directly communicating with the motor's output shaft flow channel. This nested arrangement allows the pump to be housed within the motor's spatial envelope, eliminating external pipeline connections and improving connection reliability.
2Productivity
If the pump mechanism is positioned away from the liquid storage cavity, then the motor and pump can be independently arranged, but the pumping efficiency deteriorates due to increased liquid transport distance
Solution Approach 1:
The water pump is integrated with the motor assembly and positioned adjacent to the liquid storage cavity, merging the functions of motor-driven pumping with direct access to the liquid source. This eliminates the need for long liquid transport pathways, thereby improving pumping efficiency while maintaining a compact component arrangement.
3Reliability
If multiple flow channels are implemented separately, then complete liquid circulation can be achieved, but the risk of leakage increases due to more connection points
Solution Approach 1:
The flow channels are integrated directly into the motor's output shaft and the water pump housing, merging multiple separate channel components into a unified structure. This reduces the number of discrete connection points where leaks could occur, thereby improving leakage resistance while maintaining complete liquid circulation through the integrated channels.
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 configuration improves the connection stability between components, reduces the risk of liquid leakage, and enhances the pumping efficiency while maintaining a slim design for user convenience.
Implementation Method 1
a pump mechanism (300), and a connector (400) that are arranged in an inner cavity of the casing (100)... The direction of the first axis intersects with the direction of the second axis... having a third flow channel (420) communicated with the liquid storage cavity (120) and a liquid inlet end (310) of the pump mechanism (300), and a second flow channel (410) communicated with a liquid outlet end (320) of the pump mechanism (300) and a first flow channel (211)
Data Source
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AI summary
The present disclosure provides an oral cleaning apparatus and an oral cleaner. An inner cavity of a housing of the apparatus includes a liquid storage cavity. An output shaft of a motor has a first flow channel running through the output shaft. The motor, a pump mechanism and the liquid storage cavity are arranged in sequence along a direction of a first axis. A liquid inlet end and a liquid outlet end of the pump mechanism are arranged at one end of the pump mechanism along a direction of a second axis, and the liquid inlet end and the liquid outlet end of the pump mechanism are arranged on a side of the pump mechanism closer to the liquid storage cavity along the direction of the first axis. The direction of the first axis intersects with the direction of the second axis. A connector is arranged on a side of the pump mechanism in the direction of the second axis, and has a third flow channel communicated with the liquid storage cavity and the liquid inlet end of the pump mechanism, and a second flow channel communicated with the liquid outlet end of the pump mechanism and the first flow channel. The oral cleaning apparatus and the oral cleaner provided in the present disclosure have the advantages of improving efficiency of the pump mechanism and reducing impingement force on the output shaft of the motor.