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A dual-drive ultrasonic toothbrush

A dual-drive, ultrasonic technology, used in dentistry, cleaning teeth, medical science, etc., can solve the problems of deep ultrasonic cleaning, increased vibration amplitude, small amplitude, etc., to achieve a pleasant brushing experience, good user experience, and easy operation. Effect

Active Publication Date: 2018-01-09
上海相友超声科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The electric toothbrushes currently on the market use DC motors as the vibration source, and the eccentric wheel can increase the vibration amplitude. As a result, the entire toothbrush including the handle part is vibrating, and the user experience and effect are very poor; The vibration frequency generated by the rotation is too low, much lower than the vibration frequency of the ultrasonic wave, so it cannot achieve the effect of ultrasonic deep cleaning
Some foreign high-end electric toothbrushes have a built-in piezoelectric sheet in the brush head to generate ultrasonic vibrations, but because the vibration amplitude generated by the piezoelectric sheet itself is too small, these weak ultrasonic waves basically cannot achieve the effect of ultrasonic deep cleaning

Method used

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  • A dual-drive ultrasonic toothbrush
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  • A dual-drive ultrasonic toothbrush

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as Figure 1~3 As shown, the novel ultrasonic toothbrush of the present invention, the external structure of the toothbrush includes a brush head 1, a handle 2, a handle 3 and the bristles 1a on the brush head 1. The brush head 1 is the working part of the toothbrush, the handle 3 is the part held by the user, and the brush handle 2 is the part connecting the brush head 1 and the handle 3 . The internal structure of the toothbrush includes double drives: an ultrasonic transducer 4 and a DC motor 5 , a drive board 6 , a rechargeable battery 7 , and a wireless charging coil 8 . The main driving part of the toothbrush is the ultrasonic transducer 4, which includes a front cover 4a, a piezoelectric sheet 4b, a rear cover 4c and bolts 4d. The rear cover 4c and the bolt 4d are responsible for fixing the piezoelectric sheet 4b on the front cover 4a and giving the piezoelectric sheet 4b the required pre-tightening force. The front cover 4a is responsible for amplifying t...

Embodiment 2

[0036] The brush head does not need bristles, but is replaced with other professional tooth cleaning tool heads, and rubber is added to the handle to further reduce vibration and increase the comfort of the hand.

[0037] The above-mentioned front cover and rear cover are made of aluminum material.

[0038] The ultrasonic transducer in the toothbrush can be used as a sensor, using built-in Bluetooth and other wireless transmission methods to transmit the user's dental data to applications such as mobile phones, which can be used for self-examination and dentist diagnosis after program analysis. All the other are with embodiment 1.

[0039] The above-mentioned dual-drive structure is mainly used for toothbrushes, but not limited to toothbrushes, and can also be used in other personal consumer goods and household consumer goods, such as household sweeping robots, ultrasonic face washing instruments, etc.

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Abstract

The invention relates to a dual-drive ultrasonic toothbrush which comprises an external structure and an internal structure. The external structure comprises a brush head (1), a brush handle (2) and a handle (3). The brush head (1) is connected with the handle (3) through the brush handle (2). The internal structure comprises an ultrasonic transducer (4), a direct-current motor (5) and a driving plate (6), the ultrasonic transducer (4) and the direct-current motor (5) form dual drives and are both connected with the brush head (1), and the driving plate (6) is in signal connection with the ultrasonic transducer (4) and the direct-current motor (5). Compared with the prior art, the work frequency and the work modal of the ultrasonic transducer can be designed as required so as to generate needed high-frequency vibration for deep cleaning, meanwhile, the direct-current motor and an eccentric wheel are used for generating low-frequency vibration for auxiliary cleaning, low-frequency vibration and high-frequency vibration can be generated at the same time, and the purpose of all-dimensional cleaning is achieved.

Description

technical field [0001] The invention relates to the technical field of toothbrushes, in particular to a dual-drive ultrasonic toothbrush Background technique [0002] An ultrasonic toothbrush is a high-frequency vibration electric toothbrush whose vibration frequency reaches the ultrasonic frequency. According to the definition of ultrasound, the vibration frequency of an ultrasonic toothbrush should reach at least 20,000 Hz. Ultrasonic toothbrush is the fourth generation of new toothbrush after ordinary toothbrush, electric toothbrush and sonic toothbrush. The high-frequency sound waves used by the ultrasonic toothbrush make the water produce supercritical "cavitation" phenomenon, so as to achieve the effect of cleaning teeth and oral cavity. Ultrasound can not only directly kill bacteria and block the formation of dental plaque, but also wash the tooth surface and hidden tartar and tooth stains through cavitated high-energy molecules to achieve the effect of cleaning and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C17/20A61C17/34
CPCA61C17/20A61C17/221A61C17/225A61C17/34
Inventor 李相超
Owner 上海相友超声科技有限公司