CN1105218A

CN1105218A - Electronic toothbrush

Info

Publication number: CN1105218A
Application number: CN 93111798
Authority: CN
Inventors: 夏明华; 刘宗其; 叶期平; 程贤柱; 许泽艮
Original assignee: MACHINERY SCIENCE INST ANHUI PROV
Current assignee: MACHINERY SCIENCE INST ANHUI PROV
Priority date: 1993-11-16
Filing date: 1993-11-16
Publication date: 1995-07-19

Abstract

The electronic toothbrush is composed of brush, handle, electrode, battery and conducting plate, and features that its handle contains a circuit board on which there is oscillator whose output is connected to electrode. The electric pulses from oscillator generates an intensity-changeable electric field between brush and tooth surface to weaken the binding force of dirt to teeth so as to clean the teeth.

Description

Electronic toothbrush

Patent of the present invention relates to a kind of brush based article, particularly relates to a kind of additional toothbrush that electronic installation is arranged.

Odontopathy is a kind of commonly encountered diseases, sees disease more that the main method of preventing and treating odontopathy is to clean the teeth.In order to keep the cleaning of tooth, make tooth not be subjected to the invasion and attack of antibacterial, various adding has the toothbrush of electronic installation to come out one after another.Patent Office of the People's Republic of China announced the utility model patent of a kind of " unidirectional current tooth brush for health protection " on May 10th, 1989.This utility model patent utilizes unidirectional current that electrolyte (medicated toothpaste) is carried out electrolysis, makes medicine ion in the medicated toothpaste be attached to the surface of tooth, strengthens the therapeutical effect of medicine to odontopathy.But this utility model can only be strengthened the therapeutical effect of medicine to odontopathy, improves the curative effect of used medicine, and can not strengthen the tooth tooth-cleaning action.

In view of the above-mentioned deficiency of existing in prior technology, patent of the present invention provides a kind of modified model electronics tooth, is intended to strengthen the tooth-cleaning action of tooth.Improve the efficient that cleans the teeth of tooth, give full play to the main effect of the diseases prevention that cleans the teeth of toothbrush.

Patent of the present invention realizes that the above-mentioned purpose technical solution is:

A kind of electronic toothbrush, comprise by brush holder, band bristle and the brush that links with brush holder, be located at battery in the brush holder, in brush holder, extend to the bristle root electrode, be located at outside the brush holder and the toothbrush of the band dc source formed with the conductive plate that battery cathode links, it is characterized in that also being provided with in the brush holder circuit board, be laid with oscillating circuit on the circuit board, the outfan and the electrode of oscillating circuit link.

Because patent of the present invention links the outfan of oscillating circuit with the electrode that extends to the bristle root, therefore in the process of brushing teeth, just form a strong and weak electric field that changes between the flank of tooth of brush and tooth.In this electric field, electrolyte in the human oral cavity is ionized, electronegative ion is to brushhead motion, positively charged ion moves to the flank of tooth, form the power variation of ion flow along with electric field force, positively charged ion flow constantly impacts the flank of tooth, and the adhesion of dental plaque, antibacterial and tooth is weakened, and helps bristle and is coming the backwash disorder of internal organs that it is removed.

Below with reference to accompanying drawing and a preferred embodiment patent of the present invention is explained in further detail.

Description of drawings

Fig. 1 is the structural representation of a preferred embodiment of patent of the present invention, number in the figure 1-brush, 2-brush holder, 3-circuit board, 4-battery, 5-conductive plate, 6-brush holder tail slightly, 7-bristle, 8-electrode;

Fig. 2 is the electrical schematic diagram of preferred embodiment shown in Figure 1; Among the figure in the frame of broken lines shown in circuit be that oscillating circuit is called (9) with this oscillating circuit; Code name R1～R4 is a resistance among the figure, and V1 is a transistor, and DT is a piezoelectric ceramic piece, and LED is a light emitting diode; The numbering title is identical with the title of reference numeral among Fig. 1 among the figure; Resistance R 1 and IC circuit constitute the vibration source circuit among the figure.

Fig. 3 is the internal circuit schematic diagram of IC circuit among Fig. 2.

Embodiment

In order to reduce volume, to be convenient to assembling, use surface mount elements to be packaged into a standard octal biserial orthoscopic IC all elements in the circuit shown in Figure 3.

Referring to Fig. 3, by phase inverter F1 and F2, resistance R, capacitor C and outer meeting resistance R1(referring to Fig. 2) to constitute frequency of oscillation be the multivibrator of 500KHZ; Should call on agitator and Pyatyi ten frequency dividers more and connect formation vibration source circuit successively; The second level wherein, the third level and level V remove the outfan of ten frequency dividers and draw an output lead respectively, and are numbered 7 feet, 6 feet (5 feet and 6 feet are same node) and 8 feet respectively.Referring to Fig. 3,4 feet and 1 foot are dc supply input; 2 feet and 3 feet are that outer meeting resistance R1 uses.Referring to Fig. 3, each level is removed ten frequency dividers and all is made of four J-K flip flops.

Referring to Fig. 2, current-limiting resistance R4 of string constitutes oscillating circuit (9) between the base stage of 6 feet of the IC circuit in the vibration source circuit and the node of 5 feet and transistor V1; The positive pole of the colelctor electrode of the transistor V1 in this oscillating circuit (9) and battery (4) links; Emitter stage and electrode (8) link; Stride a piezoelectric ceramic piece DT between the positive pole of 7 feet of IC circuit and battery (4); 8 feet of IC circuit have the indicating circuit of being connected and being constituted by resistance R3 and LED with the anodal cross-over connection of battery (4).

Referring to Fig. 2, after the IC circuit energising, the fluctuating signal of 6 feet output 500HZ is by being added between electrode (8) and the human body after the transistor V1 amplification, form the electric field that a power constantly changes between the brush (1) and the flank of tooth, the strong and weak change frequency of this electric field also is 500HZ.Parallel resistor R2 is used for changing the electric field strong and weak amplitude of variation on the collector and emitter of transistor V1.Referring to Fig. 2, after the IC circuit energising, the pulse signal of its 7 foot output 5KHZ makes piezoelectricity pottery sheet DT sounding; The pulse signal of its 8 foot output 5HZ makes the LED flicker luminous.User is in the process of brushing teeth like this, and piezoelectric ceramic piece DT can send melodious buzzer, and LED is glittering simultaneously, both can make things convenient for deaf mute and blind person to use, and also can increase children's feeling of freshness.

The frame for movement of patent of the present invention can be pressed known method with reference to Fig. 1 and be implemented.

Claims

1, a kind of electronic toothbrush, comprise by brush holder (2), band bristle (7) and the brush (1) that links with brush holder (2), be located at battery (4) in the brush holder (2), in brush holder (2), extend to bristle (7) root electrode (8), be located at outside the brush holder (2) and the toothbrush of the band dc source formed with the conductive plate (5) that battery (4) negative pole links, it is characterized in that also being provided with in the brush holder (2) circuit board (3), be laid with oscillating circuit (9) on the circuit board (3), the outfan of oscillating circuit (9) and electrode (8) link.

2, a kind of electronic toothbrush according to claim 1 is characterized in that being laid in oscillating circuit (9) on the circuit board (3) and is at multivibrator and has at least three utmost points to remove that current-limiting resistance R4 of string constitutes between the base stage that ten frequency dividers connect the outfan of vibration source spring circuit of formation and transistor V1 successively; The positive pole of the colelctor electrode of transistor V1 and battery (4) links, and emitter stage and electrode (8) link.

3, a kind of electronic toothbrush according to claim 2, it is characterized in that described vibration source circuit is is that the multivibrator of 500KHZ and Pyatyi are removed ten frequency dividers and connect successively and constitute by frequency of oscillation, wherein cross-over connection has piezoelectric ceramic piece DT between the positive pole of the outfan of the second level ten frequency dividers and battery (4), string has a current-limiting resistance R4 between the outfan of the third level ten frequency dividers and the base stage of transistor V1, and cross-over connection has the connect indicating circuit of formation of resistance R 3 and LED between the outfan of level V ten frequency dividers and the positive pole of battery (4).