Micro-current tooth-strengthening electric toothbrush

Abstract

The invention relates to the technical field of electric toothbrushes, in particular to a micro-current tooth-strengthening electric toothbrush which comprises a brush head and a shaft support, a spring pin is fixedly mounted in the brush head, a handle shell is fixedly mounted at one end of the brush head, and a silica gel key is mounted on the surface of the handle shell. A conventional solid output shaft of the motor is changed into a hollow shaft, then a specially-made copper column is utilized to pass through the hollow shaft to serve as a conductive positive electrode, the outer surface of the output shaft of the motor is utilized to serve as a negative electrode, two positive and negative electrode pieces are additionally arranged on a brush head for butt joint, and finally a specially-made chip of a host PCBA board is used for transmitting 10mA micro-current. Therefore, the toothbrush head can generate micro-current to clean teeth without dead angles while the toothbrush cleans the teeth in a high-frequency swinging manner, compared with the prior art, a tooth cleaning function is added, and the defect that a sound wave electric toothbrush cannot clean the teeth is overcome through the tooth cleaning function, so that the oral hygiene is more effectively cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of electric toothbrushes, and in particular to a micro-current teeth-healthy electric toothbrush. Background Art

[0002] There are sonic toothbrushes and microcurrent toothbrushes on the market, but there are no sonic electric toothbrushes with high-frequency vibration and microcurrent on the brush head. Because it is difficult to achieve two functions at the same time, we have made innovations in the structure, so that the toothbrush can conduct electricity to the brush head while vibrating at a high frequency, and then input a 10MHz frequency and microcurrent from the motherboard to the brush head through a specific chip, so that the toothbrush can play a role in sonic vibration cleaning. When the ultrasonic wave passes through the liquid medium, it will compress the liquid medium to vibrate at an extremely high frequency, causing the liquid molecules to produce positive and negative alternating shock waves. When the sound intensity reaches a certain value, tiny cavitation bubbles grow rapidly in the liquid and close instantly and strongly, producing strong micro-explosions and shock waves that destroy the dirt on the surface of the cleaned object and fall off the cleaned surface. Although the effect of each cavitation bubble is not great, there are hundreds of millions of cavitation bubbles at work every second, which has a good cleaning effect. Because ultrasonic waves can penetrate solid matter and make the entire liquid medium vibrate and produce cavitation bubbles, this cleaning method does not have dead corners that cannot be cleaned, and the industry has proven that ultrasonic cleaning has a high degree of cleanliness. Summary of the invention

[0003] The purpose of the present invention is to solve the technical problems raised in the above background technology.

[0004] The present invention adopts the following technical scheme: a micro-current tooth-health electric toothbrush, comprising a brush head and a shaft bracket, a spring pin needle is fixedly installed inside the brush head, a handle shell is fixedly installed at one end of the brush head, a silicone key is installed on the surface of the handle shell, a PCB board and a main body bracket are fixedly installed inside the handle shell, a handle bottom cover is fixedly installed at one end of the handle shell, a magnetic core pin needle assembly is fixedly installed on the surface of the handle bottom cover, a motor is fixedly installed at one end of the shaft bracket, a battery is electrically connected to the rear end of the motor, an electrode sheet is fixedly installed on the surface of the brush head, an insulating sleeve 2 is fixedly installed at one end of the spring pin needle, a motor annular shaft is fixedly installed inside the brush head, and a brass conductive shaft is sleeved inside the motor annular shaft.

[0005] Preferably, the electrode sheets are in two groups, one group is the positive electrode and the other group is the negative electrode.

[0006] Preferably, a wear-resistant plug is fixedly installed inside the brush head, a micro-current metal sheet is inserted inside the wear-resistant plug, one end of the micro-current metal sheet is connected to a conductive pin, an insulating sleeve is fixedly installed on the outer surface of the conductive pin, and a shaft waterproof plug is embedded in the front end of the shaft bracket.

[0007] Preferably, the electrode sheet and the brush head are integrally formed by ABS resin.

[0008] Preferably, the exposed height of the electrode sheet relative to the hair-implanted surface is 0.7±0.1 mm.

[0009] Preferably, the electrode sheet is connected to the spring pin.

[0010] Compared with the prior art, the advantages and positive effects of the present invention are: In the present invention, the conventional solid output shaft of the motor is changed into a hollow shaft, and then a special copper column is used through the hollow shaft as a conductive positive electrode, and the outer surface of the motor output shaft is used as a negative electrode, and two positive and negative electrode sheets are added to the brush head for docking, and finally a special chip of the host PCBA board is used to transmit a microcurrent of 10mA. In this way, the toothbrush can generate a microcurrent to clean the teeth without dead angles while the toothbrush is oscillating at a high frequency. Compared with the prior art, a function of cleaning teeth is added, and this function makes up for the defect that the sonic electric toothbrush cannot clean, thereby cleaning oral hygiene more effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The present invention provides an explosion diagram of a micro-current tooth-healthy electric toothbrush; Figure 2 A three-dimensional schematic diagram of the omitted length of a micro-current tooth-health electric toothbrush proposed by the present invention; Figure 3 A cross-sectional schematic diagram of a micro-current teeth-healthy electric toothbrush is provided for the present invention; Figure 4 The present invention provides a schematic diagram of a brush head of a micro-current teeth-healthy electric toothbrush.

[0012] Legend: 1. Brush head; 2. Spring pin; 3. Handle shell; 4. Silicone key; 5. PCB board; 6. Main bracket; 7. Handle bottom cover; 8. Magnetic pin assembly; 9. Wear-resistant plug; 10. Microcurrent metal sheet; 11. Conductive pin; 12. Insulation sleeve 1; 13. Shaft waterproof plug; 14. Shaft bracket; 15. Motor; 16. Battery; 17. Electrode sheet; 18. Insulation sleeve 2; 19. Motor ring shaft; 20. Brass conductive shaft. DETAILED DESCRIPTION

[0013] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0014] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Example

[0015] See also Figure 1-4 The present invention provides a technical solution: a micro-current tooth-health electric toothbrush, comprising a brush head 1 and a shaft bracket 14, a spring pin needle 2 is fixedly installed inside the brush head 1, a handle shell 3 is fixedly installed at one end of the brush head 1, a silicone key 4 is installed on the surface of the handle shell 3, a PCB board 5 and a main body bracket 6 are fixedly installed inside the handle shell 4, a handle bottom cover 7 is fixedly installed at one end of the handle shell 4, a magnetic core pin needle assembly 8 is fixedly installed on the surface of the handle bottom cover 7, a motor 15 is fixedly installed at one end of the shaft bracket 14, a battery 16 is electrically connected to the rear end of the motor 15, an electrode sheet 17 is fixedly installed on the surface of the brush head 1, an insulating sleeve 18 is fixedly installed at one end of the spring pin needle 2, a motor annular shaft 19 is fixedly installed inside the brush head 1, and a brass conductive shaft 20 is sleeved inside the motor annular shaft 19; The electrode sheets 17 are divided into two groups, one group is positive electrode and the other group is negative electrode; A wear-resistant plug 9 is fixedly installed inside the brush head 1, a micro-current metal sheet 10 is inserted inside the wear-resistant plug 9, one end of the micro-current metal sheet 10 is connected to a conducting pin 11, an insulating sleeve 12 is fixedly installed on the outer surface of the conducting pin 11, and a shaft waterproof plug 13 is embedded in the front end of the shaft bracket 14; The electrode sheet 17 and the brush head 1 are integrally formed by ABS resin; The exposed height of the electrode sheet 17 relative to the hair implantation surface is 0.7±0.1mm; the electrode sheet 17 is connected to the spring pin 2, and the motor 15 is connected to the motor annular shaft 19; The conventional solid output shaft of the motor is changed into a hollow shaft, and then a special copper column is used through the hollow shaft as the conductive positive electrode. The outer surface of the motor output shaft is used as the negative electrode, and two positive and negative electrode plates are added to the brush head for docking. Finally, a special chip on the host PCBA board is used to transmit a microcurrent of 10mA.

[0016] Brush head 1 part; using internal one-piece injection molding process, two metal electrodes are embedded in the brush head, the exposed height of the electrode sheet relative to the hair planting surface is 0.7±0.1mm, one is positive and the other is negative after conduction, and the internal circuit is routed; the battery inside the handle supplies power to the brush head electrode sheet, and a ring-shaft motor is used. A brass conductive shaft is passed through the ring shaft, the motor ring shaft is connected to the negative pole of the battery, and the brass conductive shaft is connected to the positive pole of the battery. The brass conductive shaft and the motor ring shaft are isolated by an insulating sleeve, and a creepage clearance of 0.5mm is maintained. The electrode sheet is integrally injection molded in the mold; the spring pin needle and the positive pole of the electrode sheet are welded in advance before the injection molding process, and the electrode sheet and the brush head are integrally molded with ABS resin through mold positioning.

[0017] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A micro-current tooth-health electric toothbrush, comprising a brush head (1) and a shaft support (14), characterized in that: A spring pin (2) is fixedly mounted inside the brush head (1); a handle shell (3) is fixedly mounted on one end of the brush head (1); a silicone key (4) is mounted on the surface of the handle shell (3); a PCB board (5) and a main body bracket (6) are fixedly mounted inside the handle shell (4); a handle bottom cover (7) is fixedly mounted on one end of the handle shell (4); a magnetic core pin assembly (8) is fixedly mounted on the surface of the handle bottom cover (7); a motor (15) is fixedly mounted on one end of the shaft bracket (14); a battery (16) is electrically connected to the rear end of the motor (15); an electrode sheet (17) is fixedly mounted on the surface of the brush head (1); an insulating sleeve (18) is fixedly mounted on one end of the spring pin (2); a motor annular shaft (19) is fixedly mounted inside the brush head (1); a brass conductive shaft (20) is sleeved inside the motor annular shaft (19).

2. The micro-current tooth-healthy electric toothbrush according to claim 1, characterized in that: The electrode sheets (17) are divided into two groups, one group is a positive electrode and the other group is a negative electrode.

3. The micro-current tooth-healthy electric toothbrush according to claim 1, characterized in that: A wear-resistant plug (9) is fixedly installed inside the brush head (1), a micro-current metal sheet (10) is inserted inside the wear-resistant plug (9), one end of the micro-current metal sheet (10) is connected to a conducting pin (11), an insulating sleeve (12) is fixedly installed on the outer surface of the conducting pin (11), and a shaft waterproof plug (13) is embedded at the front end of the shaft bracket (14).

4. The micro-current tooth-healthy electric toothbrush according to claim 1, characterized in that: The electrode sheet (17) and the brush head (1) are integrally formed by using ABS resin.

5. The micro-current tooth-healthy electric toothbrush according to claim 1, characterized in that: The exposed height of the electrode sheet (17) relative to the hair implantation surface is 0.7±0.1 mm.

6. The micro-current tooth-healthy electric toothbrush according to claim 1, characterized in that: The electrode sheet (17) is connected to the spring pin (2).

7. The micro-current tooth-healthy electric toothbrush according to claim 1, characterized in that: The motor (15) is connected to the motor annular shaft (19).

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