CN203827150U

CN203827150U - Electric toothbrush and vibration motor thereof

Info

Publication number: CN203827150U
Application number: CN201420178256.7U
Authority: CN
Inventors: 张立武
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-14
Filing date: 2014-04-14
Publication date: 2014-09-10
Anticipated expiration: 2024-04-14

Abstract

The utility model provides a vibration motor of an electric toothbrush. Front end covers are installed on the front end of a left housing and the front end of a right housing. Rear end covers are installed on the rear end of the left housing and the rear end of the right housing. A silicon steel core is fixedly hinged to a rotating shaft rod. A group of inductance coils is wound around the middle parts of the left housing and the right housing in series. The side end of the left housing and the side end of the right housing are provided with two permanent magnets respectively. A hollow body is formed by the left housing and the right housing. The silicon steel core and the rotating shaft rod are installed in the hollow body. A bearing is installed in a groove hole on the front end cover. Another bearing is installed in a groove hole on the rear end cover. The rotating shaft rod is installed on the two bearings. The silicon steel core is fixed to middle part of the rotating shaft rod. The exposed and extended part of the rotating shaft rod is used for installing an electric toothbrush head. A balancing block is installed on the tail end of the rotating shaft rod. The vibration motor is low in thermal generation and abrasion, simple in structure, small in size, and high in output efficiency so as to be capable of decreasing the overall size of the electric toothbrush and reducing production cost. Therefore, product quality is guaranteed and the vibration motors are suitable for batch production.

Description

A kind of electric toothbrush and vibrating motor thereof

Technical field

The utility model relates to electric toothbrush technology field, refers in particular to the vibrating motor that acoustic power toothbrush is used.

Background technology

Electric toothbrush is at market universalness gradually, become a kind of conventional daily necessities, commercially available electric toothbrush great majority are brush rotary electric toothbrush, adopt machine driving to drive the electric toothbrush of head toothbrushes rotation, this electric toothbrush drawbacks common is that noise is large, speed is slow, cleaning effect is not good, commercially available acoustic power toothbrush motor type is numerous, its electric machine structure is complicated, for reaching the stability of equilibrium of machine operation, mostly adopt flexible member to achieve the goal, make like this that electric machine structure is complicated, cost of manufacture is high, be therefore not suitable for popularization in enormous quantities.

Summary of the invention

The utility model provides a kind of electric toothbrush and vibrating motor thereof, solves complexity and the high cost problem of conventional motors.

For solving, reach above-mentioned technical problem, the utility model provides following technical scheme:

A kind of vibrating motor of electric toothbrush, it comprises: left shell, right shell, rotating shaft bar, front end housing, rear end cap, bearing, silicon steel core, inductance coil, permanent magnet, balance weight, wherein: the front end of described left shell and rear end, the front end of right shell and rear end are equiped with described front end housing respectively, rear cover cabinet joint, described silicon steel core and rotating shaft bar are fixedly hinged, described left shell is connected and is wound around one group of inductance coil with right shell middle part, the side of described left shell and the side of right shell are respectively provided with two permanent magnets, described left shell becomes a ducted body with right hull shape, described silicon steel core and rotating shaft bar are arranged in this ducted body, a described bearing is arranged in the recess hole of described front end housing, described in another, bearing is arranged in the recess hole of described rear end cap, being installed on two described bearings of described rotating shaft bar, silicon steel core is fixed on rotating shaft bar middle part, it is for electric toothbrush head is installed that this rotating shaft bar exposes prolongation, this rotating shaft bar tail end is provided with balance weight.

Thereby inductance coil alternately changes the sense of current by control board to be made silicon steel core produce periodic polarity of the magnetic field to convert, make full use of magnetic two like magnetic poles attract each other, the opposite sex rule of repelling each other, thereby produce high speed sympathetic response, reach vibrating effect.

Preferably, the middle part of described left shell and the middle part of right shell are respectively equipped with a groove, and inductance coil series connection is wrapped in the central slot of left shell and in the central slot of right shell.

Preferably, described front end housing and rear end cap middle part are provided with recess hole, and described bearing is fastening being arranged in this front end housing and rear end cap central slot hole respectively.

Preferably, described in each, the outer face of permanent magnet is all installed one and is hidden magnetic sheet.

An electric toothbrush, comprises the technique scheme vibrating motor of described electric toothbrush arbitrarily.

The electric toothbrush vibrating motor that the utility model embodiment provides has following technique effect: thereby inductance coil makes silicon steel core produce the periodic polarity of the magnetic field of Zhousheng by the control board periodically-varied sense of current, convert, make full use of magnetic two like magnetic poles attract each other, the opposite sex rule of repelling each other, thereby produce high speed sympathetic response, reach vibrating effect.Because heating is little, it is little to wear and tear, and when vibration can continue even vibration, noise is little.Have concurrently simple in structure, volume is little, therefore the efficiency of output is high, so can fall the overall volume of electric toothbrush, can reduce production cost again, can guarantee the quality of product, suitable production in enormous quantities.

Accompanying drawing explanation

The three-dimensional view of the vibrating motor of the electric toothbrush that Fig. 1 provides for the utility model;

The part explosive view of the vibrating motor of the electric toothbrush that Fig. 2 provides for the utility model;

The static schematic diagram of motor of the vibrating motor of the electric toothbrush that Fig. 3 provides for the utility model;

The moving toothbrush that Fig. 4 provides for the utility model cuts open schematic diagram with magnetic field structure after the inductance coil energising of vibrating motor;

The inductance coil of the vibrating motor of the electric toothbrush that Fig. 5 provides for the utility model oppositely after energising alternating magnetic field structure cut open schematic diagram.

Embodiment

In order better to understand the technical solution of the utility model, below in conjunction with accompanying drawing, describe the embodiment that the utility model provides in detail.

See diagram 1,2, the utility model provides a kind of vibrating motor of electric toothbrush, it mainly comprises: left shell 600, right shell 610, rotating shaft bar 300, front end housing 100, rear end cap 110, bearing 200, silicon steel core 700, inductance coil 601, permanent magnet 500, balance weight 900 and screening magnetic sheet 400, described left shell 600 is basic identical with right shell 610 structural designs, this left shell 600 is provided with a border groove with the outer middle part of right shell 610, inductance coil 601 this left shell of series connection and right shells, and respectively in this groove.

See that Fig. 2 shows, on balance weight 900, have the hole 901 matching with rotating shaft bar 300, and by tight fit, be assemblied in the tail end of rotating shaft bar 300.

See diagram 1,2, left shell 600 is respectively equipped with two reference columns 613 603 and a screw column 614 with right shell 610 at rear and front end face, 604, described front end housing 100 is respectively equipped with four location holes 101 and two-screw post hole 102 with rear end cap 110, this front end housing 100, rear cover cabinet joint 110 are arranged on left shell 600, right shell 610 front ends and back-end location, and join with reference column and screw column co-axially align respectively.

See diagram 2, right shell 610 sides are provided with two reference columns 615 and two location holes 616, this location hole 616 and reference column 615 join and coordinate with left shell location hole, reference column co-axially align, left shell 600 is ducted body shapes with right shell 610, and described silicon steel core 700 is arranged in this ducted body 617 with rotating shaft bar 300.

See diagram 1,2, described inductance coil 601 is connected respectively in this left shell 600 and the outer central slot of right shell 601, inductance coil 601 head ends of left shell 600 expose the first power interface line 602, inductance coil 601 tail ends of right shell 610 expose second source interface line 612, the first power interface line 602, second source interface line 612 are respectively through two holes 111 of rear end cap, be wrapped in again on rear end cap pillar 113, be finally welded to control board.

See diagram 1,2,3, described permanent magnet 500 is a rectangular strip, two ends, magnetic stripe edge are respectively provided with positioning port 501, totally four permanent magnets 500, there are two permanent magnets 500 to be arranged on the magnet groove interior 606 of left shell-side end, another two permanent magnets 500 are arranged in the magnet groove of right shell-side end, the outer face of permanent magnet 500, are also that left shell 600 and right shell 601 side end faces are installed respectively one and hidden magnetic sheet 400 and prevent magnetic leakage.

See diagram 2, front end housing 100 is provided with the first recess hole 103, described rear end cap 110 is provided with the second recess hole 114, in fastening installation the first recess hole 103 of bearing 200 described in one, fastening being arranged in the second recess hole 114 of bearing 200 described in another, the two ends of described rotating shaft bar 300 are installed in respectively on two described bearings 200, so that rotating shaft bar 300 is through front end housing 100 and rear end cap 110, and front end housing 100 and rear end cap 110 is fixed with left shell 600, right shell 610 and respectively with 800 reinforcings of two screws.

See diagram 2, described silicon steel core 700 is made for several electrical steel light sheet materials combine, silicon steel core 700 is shaped as I word shape, and this shape is that actual measurement draws data and ad hoc through this example, and this silicon steel core 700 is sheathed to be fixed on rotating shaft bar 300 along with rotating together.

See diagram 1,2, described rotating shaft bar 300 is that a kind of stainless steel is made, and these rotating shaft bar 300 front end exposed parts are for electric toothbrush head is installed, and tail end is that balance weight 900 is installed.

See diagram 1,2, described balance weight 900 is that a kind of iron plate is made, and in the middle of this balance weight 900, is provided with a location notch 901, and balance weight 900 close-fittings are arranged in rotating shaft bar afterbody backstay 301, and this balance weight can keep motor balance exercise, evenly vibration.

See diagram 3, under this static state, due to inductance coil 601, also generation current is not therefore silicon steel core 700 has electromagnetic field, and the magnetic field suction that silicon steel core 700 will be produced by permanent magnet 500 is in this case lived, and makes silicon steel core 700 hold resets start position all the time.

See diagram 4, under this is dynamic, due to inductance coil 601 generation currents, silicon steel core 700 two ends produce respectively stronger different magnetic poles and permanent magnet 500 magnetic fields produce same-sex attraction opposite sex repulsion principle features, make silicon steel core 700 produce rotation.

See diagram 5, under this is dynamic, due to inductance coil 601 senses of current exchanges, make silicon steel core 700 two ends magnetic polarities produce exchange, same-sex attraction opposite sex repulsion principle features, makes silicon steel core produce reverse rotation.

Iterative cycles like this, alternation produces vibration, and by 300 outputs of rotating shaft bar.

The utility model also provides a kind of electric toothbrush, comprises above-described embodiment vibrating motor of described electric toothbrush arbitrarily.

The vibrating motor of a kind of electric toothbrush above the utility model embodiment being provided is described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims

1. the vibrating motor of an electric toothbrush, it is characterized in that, comprise: left shell, right shell, rotating shaft bar, front end housing, rear end cap, bearing, silicon steel core, inductance coil, permanent magnet, balance weight, wherein: the front end of described left shell and rear end, the front end of right shell and rear end are equiped with described front end housing respectively, rear cover cabinet joint, described silicon steel core and rotating shaft bar are fixedly hinged, described left shell is connected and is wound around one group of inductance coil with right shell middle part, the side of described left shell and the side of right shell are respectively provided with two permanent magnets, described left shell becomes a ducted body with right hull shape, described silicon steel core and rotating shaft bar are arranged in this ducted body, a described bearing is arranged in the recess hole of described front end housing, described in another, bearing is arranged in the recess hole of described rear end cap, being installed on two described bearings of described rotating shaft bar, silicon steel core is fixed on the middle part of rotating shaft bar, it is for electric toothbrush head is installed that this rotating shaft bar exposes prolongation, this rotating shaft bar tail end is provided with balance weight.

2. the vibrating motor of electric toothbrush according to claim 1, is characterized in that, the middle part of described left shell and the middle part of right shell are respectively equipped with a groove, and inductance coil series connection is wrapped in the central slot of left shell and in the central slot of right shell.

3. the vibrating motor of electric toothbrush according to claim 1, is characterized in that, described front end housing and rear end cap middle part are provided with recess hole, and described bearing is fastening being arranged in this front end housing and rear end cap central slot hole respectively.

4. the vibrating motor of electric toothbrush according to claim 1, is characterized in that, described in each, the outer face of permanent magnet is all installed one and hidden magnetic sheet.

5. an electric toothbrush, is characterized in that, comprises the claims 1-4 vibrating motor of described electric toothbrush arbitrarily.