WO2010009633A1 - Electric toothbrush based on no-touch magnetic coupling - Google Patents
Electric toothbrush based on no-touch magnetic coupling Download PDFInfo
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- WO2010009633A1 WO2010009633A1 PCT/CN2009/071330 CN2009071330W WO2010009633A1 WO 2010009633 A1 WO2010009633 A1 WO 2010009633A1 CN 2009071330 W CN2009071330 W CN 2009071330W WO 2010009633 A1 WO2010009633 A1 WO 2010009633A1
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- WIPO (PCT)
- Prior art keywords
- permanent magnet
- output
- motor
- output shaft
- driving
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/221—Control arrangements therefor
Definitions
- the present invention relates to an electric toothbrush, which is a daily necessities.
- Electric toothbrushes are well known to the public. In general, the electric toothbrush head makes a swinging swing, which is contrary to the dentist's "scissor brushing", and the swinging frequency is lower, generally lower than 100 Hz. In recent years, cogged electric toothbrushes operating at vibration frequencies of hundreds of Hertz have begun to enter the market, as in the market monopoly.
- the Philips Sonicare series of electric toothbrushes whose core technology is found in U.S. Patent No. 5, 189, 751.
- the patented technology uses an electromagnetic coil to form an alternating magnetic field of hundreds of hertz under the action of an audio pulse signal, thereby driving a permanent magnet in the alternating magnetic field, and pushing the brush head to perform a translational swing at a frequency of several hundred hertz. Since the electromagnetic coil adopts an open structure, the magnetic lines of force are not closed, so the energy exchange efficiency is low.
- the object of the present invention is to overcome the above-mentioned deficiencies, and to provide a non-contact magnetic coupling-based electric toothbrush which is simple and reliable in structure, high in work efficiency, and capable of oscillating and oscillating the toothbrush bristles at a sonic vibration frequency.
- the object of the present invention is achieved by the following technical solution, which is mainly composed of a toothbrush body casing, a driving component and an output component, the driving component comprises a motor and a driving permanent magnet connected thereto; and the output component comprises an elastic component , output permanent magnet, output shaft and toothbrush head.
- the output permanent magnet and the output shaft are directly fixed on the elastic member, and the output permanent magnet is arranged in a non-contact manner with the driving permanent magnet.
- the driving permanent magnet is directly mounted on the output shaft of the motor or connected to the output shaft of the motor through gears and connecting rods; the magnetic field of the driving permanent magnet is distributed in the radial direction or axially.
- the drive permanent magnet is adjacently mounted with a non-contact output permanent magnet, the output permanent magnet is fixedly connected with the elastic member, and an output shaft is mounted at a front end portion of the elastic member, and a toothbrush is detachably mounted on the output shaft head.
- the present invention has the characteristics that the structure is simple, the process is mature, and the work efficiency is high, because the motor is used as the driving component, and the output permanent magnet is non-contact and arranged in contact with the driving permanent magnet.
- Figure 1 is a schematic view of the structure of the present invention.
- the electric toothbrush of the present invention is mainly composed of a toothbrush body casing 1, a driving assembly 2, an output assembly 3, and the like;
- the driving assembly 2 includes a motor 2a and a driving permanent magnet 2b, and the driving permanent magnet 2b is mounted on the motor 2a.
- the driving permanent magnet 2b On the output shaft, the output shaft of the motor 2a and the driving permanent magnet 2b rotate together to form an alternating magnetic field.
- the driving permanent magnet 2b may employ a single magnetic domain or a plurality of magnetic domains. The frequency of the alternating magnetic field is changed by changing the rotational speed of the motor 2a and the number of magnetic domains for driving the permanent magnet 2b.
- the driving permanent magnet magnetic domain may be distributed in the radial direction or in the axial direction; the driving permanent magnet 2b may be directly mounted on the output shaft of the motor 2a, or may be through a gear, a connecting rod, or the like.
- the mechanism is coupled to the output shaft of the motor 2a; and the motor 2a can be used for rotary motion, and can also be used as a motor for periodic motion such as swinging.
- the output assembly 3 includes an elastic member 3a, an output permanent magnet 3b, an output shaft 3c, a toothbrush head 3d, and the like.
- the output permanent magnet 3b and the output shaft 3c are directly mounted on the elastic member 3a, and the toothbrush head 3d and the output shaft 3c generally adopt a detachable connection structure; the output permanent magnet 3b and the driving permanent magnet 2b are non-contact and oppositely mounted, so that the output The permanent magnet 3b is excited by the alternating magnetic field generated by the driving permanent magnet 2b, thereby driving the elastic member 3a to vibrate the brush head 3d at a frequency of several hundred hertz.
- the output permanent magnet 3b can adopt a single magnetic zone or a plurality of magnetic zones, and appropriately changing the number of magnetic domains of the output permanent magnet 3b can also change the vibration frequency of the toothbrush head 3d.
- the vibration mode of the toothbrush head 3d can be changed, and the toothbrush head 3d can be reciprocally oscillated, twisted, rotated, and the like.
- the elastic member may be a leaf spring or other form of elastic member or component.
- the output permanent magnet can be directly mounted on the elastic member, or can be connected to the elastic member through other mechanisms; the output shaft can be directly mounted on the elastic member, or can be connected to the elastic member through other mechanisms.
- the toothbrush head 3d can be operated at a resonance frequency by appropriately adjusting the rotational speed of the motor 2a, driving the number of magnetic domains of the permanent magnet 2b and the number of magnetic domains of the output permanent magnet 3b, thereby greatly increasing the output power.
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Brushes (AREA)
Abstract
A electric toothbrush based on no-touch magnetic coupling has a toothbrush body casing (1), a driving subassembly (2) and an output subassembly (3).The driving subassembly (2) includes a motor (2a) and a diving permanent magnet (2b) connected to it, and the output subassembly (3) includes a springy component (3a), an output permanent magnet (3b), an output shaft (3c) and a toothbrush head (3d). The output permanent magnet (3b) and the output shaft (3c) are fixed directly on the springy component (3a), the output permanent magnet (3b) and the diving permanent magnet (2b) are disposed to be opposite and in a no-touch manner, the diving permanent magnet (2b) is fixed directly on an output pole of the motor (2a), or connected with the output pole of the motor (2a) by a gear or a link, and the magnetic domains of the diving permanent magnet (2b) are distributed radially or along the axis.
Description
一种基于非接触磁耦合的电动牙刷 技术领域 本发明涉及一种电动牙刷， 属于日常生活用品。 背景技术 电动牙刷已为大众所熟悉。 一般电动牙刷刷头作回转摆动， 这和牙医专家的"顺齿刷牙" 相违背， 而且回转摆动频率较低， 普遍低于 100赫兹。 近年来， 工作在数百赫兹振动频率的顺齿电动牙刷开始走向市场， 如在市场占垄断地位 说 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric toothbrush, which is a daily necessities. BACKGROUND OF THE INVENTION Electric toothbrushes are well known to the public. In general, the electric toothbrush head makes a swinging swing, which is contrary to the dentist's "scissor brushing", and the swinging frequency is lower, generally lower than 100 Hz. In recent years, cogged electric toothbrushes operating at vibration frequencies of hundreds of Hertz have begun to enter the market, as in the market monopoly.
的飞利浦 Sonicare系列电动牙刷， 其核心技术见美国专利 No. 5, 189, 751。 该专利技术采用 电磁线圈在音频脉冲信号的作用下， 形成数百赫兹书的交变磁场， 从而驱动在该交变磁场中的 永磁体， 推动牙刷头以数百赫兹的频率作平移摆动。 由于电磁线圈采用开放结构， 磁力线不 闭合， 故能量交换效率较低。 发明内容 本发明的目的在于克服上述存在的不足， 而提供一种结构简单可靠， 工作效率高， 牙刷 刷毛能以声波振动频率顺齿作平移摆动的基于非接触磁藕合的电动牙刷。 本发明的目的是通过如下技术方案来完成的， 它主要由牙刷体外壳、 驱动组件及输出组 件组成，所述的驱动组件包括一马达及与之相连的驱动永磁体；输出组件包括有一弹性构件、 输出永磁体、 输出轴以及牙刷头。 所述的输出永磁体与输出轴均直接固定于弹性构件上， 输出永磁体与驱动永磁体非接触 相对布置。 所述的驱动永磁体直接安装在马达的输出轴上、或通过齿轮、连杆与马达输出轴相连接； 所述的驱动永磁体磁区沿径向分布或作轴向分布。 所述的驱动永磁体相邻安装的非接触输出永磁体， 该输出永磁体与弹性构件固定连接， 而在弹性构件的前端部安装有输出轴， 并在该输出轴上可拆卸地安装有牙刷头。 本发明与现有技术相比较， 由于本发明以马达作驱动部件， 输出永磁体与驱动永磁体非 接触相对布置， 具有结构简单、 工艺成熟， 工作效率高等特点。
附图说明 The Philips Sonicare series of electric toothbrushes, whose core technology is found in U.S. Patent No. 5, 189, 751. The patented technology uses an electromagnetic coil to form an alternating magnetic field of hundreds of hertz under the action of an audio pulse signal, thereby driving a permanent magnet in the alternating magnetic field, and pushing the brush head to perform a translational swing at a frequency of several hundred hertz. Since the electromagnetic coil adopts an open structure, the magnetic lines of force are not closed, so the energy exchange efficiency is low. SUMMARY OF THE INVENTION The object of the present invention is to overcome the above-mentioned deficiencies, and to provide a non-contact magnetic coupling-based electric toothbrush which is simple and reliable in structure, high in work efficiency, and capable of oscillating and oscillating the toothbrush bristles at a sonic vibration frequency. The object of the present invention is achieved by the following technical solution, which is mainly composed of a toothbrush body casing, a driving component and an output component, the driving component comprises a motor and a driving permanent magnet connected thereto; and the output component comprises an elastic component , output permanent magnet, output shaft and toothbrush head. The output permanent magnet and the output shaft are directly fixed on the elastic member, and the output permanent magnet is arranged in a non-contact manner with the driving permanent magnet. The driving permanent magnet is directly mounted on the output shaft of the motor or connected to the output shaft of the motor through gears and connecting rods; the magnetic field of the driving permanent magnet is distributed in the radial direction or axially. The drive permanent magnet is adjacently mounted with a non-contact output permanent magnet, the output permanent magnet is fixedly connected with the elastic member, and an output shaft is mounted at a front end portion of the elastic member, and a toothbrush is detachably mounted on the output shaft head. Compared with the prior art, the present invention has the characteristics that the structure is simple, the process is mature, and the work efficiency is high, because the motor is used as the driving component, and the output permanent magnet is non-contact and arranged in contact with the driving permanent magnet. DRAWINGS
图 1是本发明的结构示意图。 Figure 1 is a schematic view of the structure of the present invention.
具体实施方式 detailed description
以下结合附图所示的实施例对本发明作进一步的描述。 如图 1所示， 本发明的电动牙刷 主要由牙刷体外壳 1、驱动组件 2和输出组件 3等组成； 驱动组件 2包括有一马达 2a及驱动 永磁体 2b， 驱动永磁体 2b安装在马达 2a的输出轴上， 马达 2a的输出轴和驱动永磁体 2b— 起转动， 从而形成交变磁场。 驱动永磁体 2b可以采用单一磁区或多个磁区。 改变马达 2a的 转速及驱动永磁体 2b磁区的数量， 从而改变交变磁场的频率。 The invention is further described below in conjunction with the embodiments shown in the drawings. As shown in FIG. 1, the electric toothbrush of the present invention is mainly composed of a toothbrush body casing 1, a driving assembly 2, an output assembly 3, and the like; the driving assembly 2 includes a motor 2a and a driving permanent magnet 2b, and the driving permanent magnet 2b is mounted on the motor 2a. On the output shaft, the output shaft of the motor 2a and the driving permanent magnet 2b rotate together to form an alternating magnetic field. The driving permanent magnet 2b may employ a single magnetic domain or a plurality of magnetic domains. The frequency of the alternating magnetic field is changed by changing the rotational speed of the motor 2a and the number of magnetic domains for driving the permanent magnet 2b.
作为对上述驱动组件 2结构的补充， 驱动永磁体磁区可沿径向分布， 也可作轴向分布； 驱动永磁体 2b可直接安装在马达 2a的输出轴上， 也可通过齿轮、 连杆等机构和马达 2a的 输出轴相连接； 而马达 2a可采用作回转运动的，也可选用作摆动等周期运动的马达。 In addition to the structure of the above-mentioned driving component 2, the driving permanent magnet magnetic domain may be distributed in the radial direction or in the axial direction; the driving permanent magnet 2b may be directly mounted on the output shaft of the motor 2a, or may be through a gear, a connecting rod, or the like. The mechanism is coupled to the output shaft of the motor 2a; and the motor 2a can be used for rotary motion, and can also be used as a motor for periodic motion such as swinging.
输出组件 3包括有一弹性构件 3a、输出永磁体 3b、输出轴 3c及牙刷头 3d等。输出永磁 体 3b及输出轴 3c都直接安装在弹性构件 3a上， 牙刷头 3d和输出轴 3c—般采用可折卸的 连接结构； 输出永磁体 3b和驱动永磁体 2b非接触相对安装， 这样输出永磁体 3b受驱动永 磁体 2b产生的交变磁场的激励， 从而驱动弹性构件 3a使牙刷头 3d以数百赫兹的频率振动。 输出永磁体 3b可采用单磁区或多个磁区， 适当改变输出永磁体 3b的磁区数量同样可改变牙 刷头 3d的振动频率。 而适当改变输出永磁体 3b相对于驱动永磁体 2b的位置， 则可改变牙 刷头 3d的振动方式， 使牙刷头 3d实现往复摆动， 扭动及转动等运动。 The output assembly 3 includes an elastic member 3a, an output permanent magnet 3b, an output shaft 3c, a toothbrush head 3d, and the like. The output permanent magnet 3b and the output shaft 3c are directly mounted on the elastic member 3a, and the toothbrush head 3d and the output shaft 3c generally adopt a detachable connection structure; the output permanent magnet 3b and the driving permanent magnet 2b are non-contact and oppositely mounted, so that the output The permanent magnet 3b is excited by the alternating magnetic field generated by the driving permanent magnet 2b, thereby driving the elastic member 3a to vibrate the brush head 3d at a frequency of several hundred hertz. The output permanent magnet 3b can adopt a single magnetic zone or a plurality of magnetic zones, and appropriately changing the number of magnetic domains of the output permanent magnet 3b can also change the vibration frequency of the toothbrush head 3d. By appropriately changing the position of the output permanent magnet 3b with respect to the driving permanent magnet 2b, the vibration mode of the toothbrush head 3d can be changed, and the toothbrush head 3d can be reciprocally oscillated, twisted, rotated, and the like.
作为对上述输出组件 3结构的补充， 弹性构件可采用板弹簧或其它形式的弹性构件或组 件。 输出永磁体可直接安装在弹性构件上， 也可通过其它机构与弹性构件相连接； 输出轴可 直接安装在弹性构件上， 也可通过其它机构与弹性构件相连接。 In addition to the structure of the above-described output assembly 3, the elastic member may be a leaf spring or other form of elastic member or component. The output permanent magnet can be directly mounted on the elastic member, or can be connected to the elastic member through other mechanisms; the output shaft can be directly mounted on the elastic member, or can be connected to the elastic member through other mechanisms.
本发明中， 可通过适当调整马达 2a转速， 驱动永磁体 2b 的磁区数量及输出永磁体 3b 的磁区数量， 使牙刷头 3d在共振频率下工作， 从而大大提高输出功率。
In the present invention, the toothbrush head 3d can be operated at a resonance frequency by appropriately adjusting the rotational speed of the motor 2a, driving the number of magnetic domains of the permanent magnet 2b and the number of magnetic domains of the output permanent magnet 3b, thereby greatly increasing the output power.
Claims
1、一种基于非接触磁耦合的电动牙刷，它主要由牙刷体外壳、驱动组件及输出组件组成， 其特征在于所述的驱动组件 （2) 包括一马达 （2a) 及与之相连的驱动永磁体 （2b); 输出组 件 （3 ) 包括有一弹性构件 （3a)、 输出永磁体 （3b)、 输出轴 （3c) 以及牙刷头 （3d)。 A non-contact magnetic coupling based electric toothbrush comprising mainly a toothbrush body casing, a drive assembly and an output assembly, characterized in that said drive assembly (2) comprises a motor (2a) and a drive coupled thereto The permanent magnet (2b); the output assembly (3) includes an elastic member (3a), an output permanent magnet (3b), an output shaft (3c), and a toothbrush head (3d).
2、根据权利要求 1所述的基于非接触磁耦合的电动牙刷，其特征在于所述的输出永磁体 ( 3b)与输出轴（3c)均直接固定于弹性构件（3a)上， 输出永磁体（3b)与驱动永磁体（2b) 非接触相对布置。 The electric toothbrush based on non-contact magnetic coupling according to claim 1, characterized in that the output permanent magnet (3b) and the output shaft (3c) are directly fixed to the elastic member (3a), and the output permanent magnet (3b) is arranged in a non-contact manner with the driving permanent magnet (2b).
3、根据权利要求 1所述的基于非接触磁耦合的电动牙刷，其特征在于所述的驱动永磁体 (2b)直接安装在马达（2a) 的输出轴上、 或通过齿轮、 连杆与马达（2a) 的输出轴相连接； 所述的驱动永磁体 （2b) 的磁区沿径向分布或作轴向分布。 The electric toothbrush based on non-contact magnetic coupling according to claim 1, characterized in that the driving permanent magnet (2b) is directly mounted on the output shaft of the motor (2a) or through a gear, a connecting rod and a motor. The output shafts of (2a) are connected; the magnetic regions of the driving permanent magnets (2b) are distributed radially or axially.
4、根据权利要求 1所述的基于非接触磁耦合的电动牙刷，其特征在于所述的驱动永磁体 (2b ) 相邻安装的非接触输出永磁体 （3b)， 该输出永磁体 （3b) 与弹性构件 （3a) 固定连 接， 而在弹性构件（3a) 的前端部安装有输出轴 （3c)， 并在该输出轴 （3c)上可拆卸地安装 有牙刷头 （3d)。
The non-contact magnetic coupling-based electric toothbrush according to claim 1, characterized in that the driving permanent magnet (2b) is adjacently mounted with a non-contact output permanent magnet (3b), and the output permanent magnet (3b) The elastic member (3a) is fixedly coupled, and an output shaft (3c) is attached to the front end portion of the elastic member (3a), and a toothbrush head (3d) is detachably attached to the output shaft (3c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/003,855 US20110107531A1 (en) | 2008-07-21 | 2009-04-17 | Electric toothbrush based on no-touch magnetic coupling |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820121468.6 | 2008-07-21 | ||
| CNU2008201214686U CN201223466Y (en) | 2008-07-21 | 2008-07-21 | Electric toothbrush based on non-contact magnetic-coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010009633A1 true WO2010009633A1 (en) | 2010-01-28 |
Family
ID=40596342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2009/071330 WO2010009633A1 (en) | 2008-07-21 | 2009-04-17 | Electric toothbrush based on no-touch magnetic coupling |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20110107531A1 (en) |
| CN (1) | CN201223466Y (en) |
| WO (1) | WO2010009633A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9154025B2 (en) | 2010-07-23 | 2015-10-06 | Braun Gmbh | Personal care device |
| EP2410641A1 (en) | 2010-07-23 | 2012-01-25 | Braun GmbH | Linear electric motor |
| JP2013537798A (en) | 2010-08-19 | 2013-10-03 | ブラウン ゲーエムベーハー | Method and appliance for operating an appliance |
| ES2646447T3 (en) | 2011-07-25 | 2017-12-13 | Braun Gmbh | Oral care devices with linear electro-polymer motors |
| EP2550938B1 (en) | 2011-07-25 | 2015-01-14 | Braun GmbH | Oral hygiene device |
| ES2451021T3 (en) | 2011-07-25 | 2014-03-26 | Braun Gmbh | Magnetic connection between a toothbrush handle and a brush head |
| EP3122206B1 (en) | 2014-03-25 | 2020-05-27 | Koninklijke Philips N.V. | Brush head assembly and methods of manufacture |
| US10667891B2 (en) | 2014-05-22 | 2020-06-02 | Koninklijke Philips N.V. | Resonance tuning of the bristle structure for a power toothbrush |
| CN104957874B (en) * | 2015-06-28 | 2017-01-18 | 西安交通大学青岛研究院 | Electric plate brush horizontally driven by electromagnet |
| CN108670475A (en) * | 2018-05-25 | 2018-10-19 | 应泽鑫 | A kind of electric toothbrush |
| CN108784871B (en) * | 2018-05-25 | 2021-06-04 | 新昌县锦策科技发展有限公司 | Novel electric toothbrush |
| CN111713846B (en) * | 2020-06-23 | 2021-02-19 | 上海驻净电子科技有限公司 | Electric toothbrush with power enhanced through magnetic suspension |
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| US6140723A (en) * | 1996-03-21 | 2000-10-31 | Sunstar Inc. | Vibration generating device and oral hygiene device using same |
| CN2451073Y (en) * | 2000-10-26 | 2001-10-03 | 沃辉有限公司 | High frequency vibrating tooth-brush |
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| CN2803308Y (en) * | 2004-11-19 | 2006-08-09 | 吴旭榕 | Electric toothbrush |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5189751A (en) * | 1991-03-21 | 1993-03-02 | Gemtech, Inc. | Vibrating toothbrush using a magnetic driver |
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2008
- 2008-07-21 CN CNU2008201214686U patent/CN201223466Y/en not_active Expired - Fee Related
-
2009
- 2009-04-17 US US13/003,855 patent/US20110107531A1/en not_active Abandoned
- 2009-04-17 WO PCT/CN2009/071330 patent/WO2010009633A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6140723A (en) * | 1996-03-21 | 2000-10-31 | Sunstar Inc. | Vibration generating device and oral hygiene device using same |
| CN2451073Y (en) * | 2000-10-26 | 2001-10-03 | 沃辉有限公司 | High frequency vibrating tooth-brush |
| CN2633245Y (en) * | 2003-07-03 | 2004-08-18 | 陈国成 | Motor and magnet driving electric tooth-brush |
| WO2005041808A1 (en) * | 2003-11-03 | 2005-05-12 | Pal-Hyung Lee | Dental scaler |
| CN2803308Y (en) * | 2004-11-19 | 2006-08-09 | 吴旭榕 | Electric toothbrush |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110107531A1 (en) | 2011-05-12 |
| CN201223466Y (en) | 2009-04-22 |
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