CN210990865U

CN210990865U - Electromagnetic vertical tooth brush

Info

Publication number: CN210990865U
Application number: CN201920968649.0U
Authority: CN
Inventors: 刘平均
Original assignee: Shenzhen Dajingkai Technology Co ltd
Current assignee: Shenzhen Dajingkai Technology Co ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-07-14
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses an electromagnetic vertical brushing toothbrush, which comprises a brushing head 1 and a shell, wherein a power supply, a motor controller 6 and a driving mechanism are fixed in the shell, and the driving mechanism comprises a permanent magnet core 3, a coil 5 and an inverted cam cylinder 2; the coil 5 is fixed in the shell, the permanent magnet core 3 is cylindrical, the coil 5 is sleeved in the middle of the permanent magnet core 3, the permanent magnet cores 3 at two ends of the coil 5 are respectively fixed with a return spring 4, and the permanent magnet cores 3 are connected with the coil 5 in a sliding manner; the inverted cam cylinder 2 is rotationally fixed in the shell, an output shaft 201 is arranged on the inverted cam cylinder 2, the output shaft 201 penetrates through the shell to be connected with the brush head 1, and a chute 202 is arranged on the inverted cam cylinder 2; the inverted cam is sleeved at the top end of the permanent magnet core 3, and a lug 301 at the top end of the permanent magnet core 3 is positioned in the chute 202 of the inverted cam cylinder; the coil 5 is electrically connected with the motor controller 6.

Description

Electromagnetic vertical tooth brush

Technical Field

The utility model relates to an electric toothbrush field specifically is an electromagnetic type vertical brushing toothbrush.

Background

At present, two kinds of electric toothbrushes are available on the market, the first is a mechanical type rotating wheel rotating toothbrush which swings in a bristle plane of the toothbrush, the first type of electric toothbrush comprises a cantilever beam free end high-speed rotating vibration mode and an impact rotating wheel mode, and a high-speed rotating cam, an eccentric wheel or a crank impacts an extensive mechanical transmission mechanism of a rotating wheel mode working principle, wherein a rotating plane of the extensive mechanical transmission mechanism is parallel to the surface of teeth, gum gullets cannot be cleaned, and the tooth surface is greatly abraded. The second is a vibrating toothbrush, including mechanical eccentric vibration and linear electromagnetic deflection enhanced excitation electric toothbrushes, where the vibration is exponentially attenuated by cycles, the amplitude of the bristles appears large, but the mass of the bristles is of the order of milligrams, the output power actually used for brushing teeth is low, and the brushing effect is not ideal.

The development of a vertical brushing electric toothbrush with a swinging toothbrush arm has been a difficult problem of the electric toothbrush. The vertical brushing electric toothbrush with the forward and reverse rotating motor driving the toothbrush arm to swing is the naive thought, the motor has two time constants, namely a mechanical time constant Tm and an electromagnetic time constant Te, and Tm is far greater than Te, namely the frequency of the small-angle forward and reverse rotating motor is very low, the output torque is very small, the electric toothbrush can work under the condition of strong current, and particularly, the size space for arranging the motor is very limited.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide an electromagnetic vertical brushing toothbrush driven in an axial reciprocating manner.

The utility model provides a technical scheme as follows that above-mentioned technical problem took:

an electromagnetic vertical brushing toothbrush comprises a brush head 1 and a shell, wherein a power supply, a motor controller 6 and a driving mechanism are fixed in the shell, and the driving mechanism comprises a permanent magnet core 3, a coil 5 and an inverted cam cylinder 2;

the coil 5 is fixed in the shell, the permanent magnet core 3 is cylindrical, the coil 5 is sleeved in the middle of the permanent magnet core 3, the permanent magnet cores 3 at two ends of the coil 5 are respectively fixed with a return spring 4, the two return springs 4 are respectively abutted against two ends of the coil 5, the return springs 4 are used for fixing the permanent magnet cores 3, the permanent magnet cores 3 are connected with the coil 5 in a sliding manner, and the top ends of the permanent magnet cores 3 are provided with bumps 301;

the inverted cam cylinder 2 is rotationally fixed in the shell, the inverted cam cylinder 2 can rotate relative to the shell, an output shaft 201 is arranged on the inverted cam cylinder 2, the output shaft 201 penetrates through the shell to be connected with the brush head 1, and an inclined groove 202 is arranged on the inverted cam cylinder 2;

the inverted cam is sleeved at the top end of the permanent magnet core 3, and a lug 301 at the top end of the permanent magnet core 3 is positioned in the chute 202 of the inverted cam cylinder;

the coil 5 is electrically connected with the motor controller 6.

The coil 5 is controlled by the driving circuit to be electrified in a crossed manner in the forward direction, so that the permanent magnet core 3 does linear reciprocating motion, the lug 301 on the permanent magnet core 3 is positioned in the cylinder of the reverse cam to do linear reciprocating motion, the reverse cam is rotationally fixed in the shell, the permanent magnet core 3 drives the reverse cam cylinder 2 to swing through the cooperation of the lug 301 and the chute 202, and the reverse cam cylinder drives the brush head 1 to swing back and forth through the output shaft 201, so that the vertical brushing of the brush head 1 is realized.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The present invention will be described in detail with reference to the accompanying drawings so that the above advantages of the present invention can be more clearly understood.

FIG. 1 is a schematic cross-sectional view of an electromagnetic vertical brushing toothbrush of the present invention;

fig. 2 is a schematic view of an inverted cam cylinder of the electromagnetic vertical toothbrush of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following specific embodiments.

As shown in fig. 1-2, an electromagnetic vertical brushing toothbrush comprises a brushing head 1 and a shell, wherein a power supply, a motor controller 6 and a driving mechanism are fixed in the shell, and the driving mechanism comprises a permanent magnet core 3, a coil 5 and an inverted cam cylinder 2;

the coil 5 is fixed in the shell, the permanent magnet core 3 is cylindrical, the coil 5 is sleeved in the middle of the permanent magnet core 3, the permanent magnet cores 3 at two ends of the coil 5 are respectively fixed with a return spring 4, the two return springs 4 are respectively abutted against two ends of the coil 5, the return springs 4 are used for balancing and fixing the permanent magnet core 3, the permanent magnet core 3 is connected with the coil 5 in a sliding manner, and the top end of the permanent magnet core 3 is provided with a lug 301;

the rotation fixed mode of spare part has the multiple among the prior art, and it is fixed to the rotation of reverse cam drum, make reverse cam drum can not for the shell displacement dislocation can, if seted up the mounting groove in the shell, or fix spacing through spare parts such as bearings, belong to prior art direct citation in this application, do not do unnecessary explanation admittedly.

The permanent magnet core 3 is fixed on the coil 5 through the two return springs 4, and when the permanent magnet core 3 does the linear reciprocating motion, the two return springs 4 are used for facilitating the motion balance of the permanent magnet core 3, so that the linear motion of the permanent magnet core 3 is more stable.

the coil 5 is electrically connected with the motor controller 6.

The utility model relates to an electromagnetic vertical brushing toothbrush, which controls a permanent magnet core 3 to do linear reciprocating motion by controlling the electromagnetic principle, and can adjust the motion stroke and the reciprocating frequency of the permanent magnet core 3 by adjusting the current and the turning frequency; change the motion stroke of permanent magnet iron core 3 or the chute 202 angle of reverse cam drum 2, all reach the effect of the swing range of adjustment brush head 1, compare in current vibrations formula and the electric toothbrush when rotating, brush head 1 up-and-down swing's perpendicular brush action, more do benefit to remaining the material object and brush from the slit between the teeth and fall, clean effect is better.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic vertical brushing toothbrush comprises a brush head (1) and a shell, wherein a power supply, a motor controller (6) and a driving mechanism are fixed in the shell, and the electromagnetic vertical brushing toothbrush is characterized in that the driving mechanism comprises a permanent magnet core (3), a coil (5) and a reverse cam cylinder (2);

the coil (5) is fixed in the shell, the permanent magnet cores (3) are cylindrical, the coil (5) is sleeved in the middle of the permanent magnet cores (3), the permanent magnet cores (3) at two ends of the coil (5) are respectively fixed with a return spring (4), the two return springs (4) are respectively abutted against two ends of the coil (5), the return springs (4) are used for fixing the permanent magnet cores (3), the permanent magnet cores (3) are connected with the coil (5) in a sliding mode, and the top ends of the permanent magnet cores (3) are provided with bumps (301);

the reverse cam cylinder (2) is rotationally fixed in the shell, the reverse cam cylinder (2) can rotate relative to the shell, an output shaft (201) is arranged on the reverse cam cylinder (2), the output shaft (201) penetrates through the shell to be connected with the brush head (1), and a chute (202) is arranged on the reverse cam cylinder (2);

the inverted cam is sleeved at the top end of the permanent magnet core (3), and a lug (301) at the top end of the permanent magnet core (3) is positioned in a chute (202) of the inverted cam cylinder;

the coil (5) is electrically connected with the motor controller (6).