CN203674948U

CN203674948U - Vibration electromotor for electric toothbrush

Info

Publication number: CN203674948U
Application number: CN201320543302.4U
Authority: CN
Inventors: 张立武
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-03
Filing date: 2013-09-03
Publication date: 2014-06-25
Anticipated expiration: 2023-09-03

Abstract

The utility model discloses a vibration electromotor for an electric toothbrush. The vibration electromotor for an electric toothbrush is characterized in that an electric inductance wire coil rotor is hinged onto a rotating shaft rod, four permanent magnets are respectively mounted on inner cavities of a left support rack and a right support rack, an output rear end of the rotating shaft rod and a rear cover are positioned through a spring positioning pin, the front end of an outer shell is provided with a first groove ring, a first bearing is mounted in the first groove ring, the front end of the outer shell is symmetrically provided with two screw holes used for fixing the left and right support racks, the rear cover is provided with a second groove ring, a second bearing is mounted in the second groove ring, the middle part of the rotating shaft rod is mounted on the first bearing, the electric inductance wire coil rotor is mounted at the middle of the first bearing and the second bearing, the rear part of the rotating shaft rod is mounted on the second bearing, the two ends of a side edge of the rear cover are provided with first via holes, and the spring positioning pin is inserted into the first via holes and a second via hole. The vibration electromotor is characterized by simple structure, wide vibration frequency, high conversion efficiency in working processes, suitability for batch production and convenience of use.

Description

A kind of electric toothbrush vibrating motor

Technical field

The utility model relates to electric toothbrush technology field, particularly vibrating motor and electric toothbrush for a kind of acoustic power toothbrush.

background technology

Along with consumer's living standard improves, electric toothbrush is just becoming the best instrument of consumer healthcare's tooth, commercially available electric toothbrush is because of cost reason, mostly adopt conventional motors to add oscillation ring composition, its shortcoming: vibrate strong not, the frequency instability of work, the amplitude of vibration and frequency can fluctuate with the change in voltage of battery.Although on market, also there is special vibrating motor, complex structure, cost is higher, poor reliability, and need manual adjustment in producing, consistency difficult guarantees, is therefore not suitable for popularization in enormous quantities.

utility model content

The utility model provides a kind of acoustic power toothbrush vibrating motor and electric toothbrush, and vibrating motor is simple in structure, have super wide vibration frequency, and conversion efficiency when work high, can produce in enormous quantities, easy to use.

To achieve these goals, the utility model provides following technical scheme:

A kind of electric toothbrush vibrating motor, it comprises shell, bonnet, rotating shaft bar, four permanent magnets, inductance coil rotor, left socle and right supports, wherein: described inductance coil rotor and rotating shaft bar are hinged, described four permanent magnets are arranged on respectively left socle and right support inner chamber, described inductance coil rotor is wrapped in wherein by left socle, right support and permanent magnet, and output rear end and the bonnet of described rotating shaft bar are located by spring holder;

Described shell left and right part is coaxial setting, and be the cylindrical shell of semi-circular shape hollow, described shell front end is provided with the first groove ring, clutch shaft bearing is installed in the first groove ring, shell front end is symmetrical arranged and is useful on two fixing screw holes of left and right support, after described, be covered with the second groove ring, the second bearing is arranged in the second groove ring, described rotating shaft bar middle part is arranged on clutch shaft bearing, inductance coil rotor is installed in the middle of clutch shaft bearing and the second bearing, and the rear portion of described rotating shaft bar is arranged on the second bearing;

Described bonnet side two ends are provided with the first through hole, and the second through hole of this first through hole and rotating shaft rod rear end coaxially arranges, described bonnet and described rotating shaft bar concentric, and described spring holder inserts in described the first through hole and the second through hole.

Preferably, described inductance coil rotor is cylinder, this column axis place is provided with third through-hole, described rotating shaft bar is inserted in third through-hole, these two ends, inductance coil rotor left and right are provided with arc cam, the central shaft of this arc cam and described four permanent magnets are concentric, and this inductance coil two ends of rotor is wound around respectively some inductance coils.

Preferably, the circular arc inner face of described four permanent magnets and the inductance coil rotor coaxial heart, the outer face of described four permanent magnets difference conductively-closed housing is lived in addition.

A kind of electric toothbrush, it comprises the electric toothbrush vibrating motor described in above-mentioned any technical scheme,

By implementing above technical scheme, there is following technique effect: the acoustic power toothbrush that the utility model provides vibrating motor and electric toothbrush, inductance coil rotor and permanent magnet can keep concentric in static state and dynamically always, have solved the inhomogeneous problem of vibrating.Inductance coil two ends of rotor is wound around respectively inductance coil, inductance coil and rotor zero distance are wound around and produce more efficient magnetic field, the pulse square wave that inductance coil rotor is exported by circuit, make inductance coil rotor produce alternating magnetic field, therefore constantly produce pole-changing with permanent magnet, make the inductance coil rotor can be with the frequency reciprocating swing of input, thereby reach the effect of whirling vibration.Insert with inductance coil rotor the rotating shaft bar other end being connected and fixed and be connected head toothbrushes and make its swing of generation corresponding frequencies that drives head toothbrushes, reach the effect of health care tooth, thereby improved the disease in oral cavity.

Rotating shaft bar output rear end and bonnet provide location and eliminated noise function and torsion reset function by spring catch; This spring catch resilient enough easy to process simple in structure, and easier for installation.

accompanying drawing explanation

Fig. 1 is electric toothbrush of the present utility model vibrating motor STRUCTURE DECOMPOSITION figure;

Fig. 2 is electric toothbrush of the present utility model vibrating motor textural association figure (from a side);

Fig. 3 is electric toothbrush of the present utility model vibrating motor textural association figure (from opposite side);

Fig. 4 is that electric toothbrush of the present utility model vibrating motor inductor wire rotor and permanent magnet are at the not alternating magnetic field structure cutaway view of not switching on;

Fig. 5 is that electric toothbrush of the present utility model vibrating motor inductor wire rotor and permanent magnet magnetic field structure after energising cut open schematic diagram;

Fig. 6 is that electric toothbrush of the present utility model vibrating motor inductor wire rotor and permanent magnet alternating magnetic field structure after oppositely switching on are cutd open schematic diagram;

Fig. 7 is the constitutional diagram of electric toothbrush of the present utility model vibrating motor inductor wire and rotor.

Embodiment

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

The utility model embodiment provides a kind of high efficiency motor toothbrush vibrating motor, as shown in Fig. 1-Fig. 7, these shell 100 left and right parts 102 are coaxial setting, and be the cylindrical shell of semi-circular shape hollow, shell 100 front ends are provided with the first groove ring 110, this clutch shaft bearing 201 is arranged in the first groove ring 110 of housing, and shell front end is symmetrical two screw holes 109 fixing for left socle 301 and right support 300 and screw 103 respectively.Described inductance coil rotor 202 is wrapped in wherein by left socle, right support and permanent magnet, and output rear end and the bonnet 101 of described rotating shaft bar 200 are located by spring holder 104.

This left socle 301 has enough spaces to swing with right support 300 is middle for ducted body makes inductance coil rotor 202, in the middle of this left socle 301 and right support 300, have a rectangular recess 302 to be respectively used to install the one or two permanent magnet the 400, the 34 permanent magnet 402, this right support 300 is provided with two reference columns 303 and location bone 304, this left socle 301 and is provided with two holes and initial fixing of location notch in reference column 303, location bone 304 symmetric positions.

These four permanent magnets, i.e. the one or two permanent magnet 400, the three or four permanent magnet 402 has respectively two to be arranged on left socle 301, two other installs the right support 300, preferably, four permanent magnets are circular shape, circular arc inner face is coaxial with inductance coil rotor 202, there is a steel bar 403 centre of the one or two permanent magnet 400 and the three or four permanent magnet 402 for making the not polarization repulsion in vitro of two magnets, further in addition, the outer face of the one or two permanent magnet 400 and the three or four permanent magnet 402 is respectively by the one or two screening cover 500, the three or four screening cover 501 covers, prevent magnetic leakage.

These rotating shaft bar 200 front center are arranged on clutch shaft bearing 201, inductance coil rotor 202 is installed in the middle of clutch shaft bearing and the second bearing, this inductance coil rotor 202 is for being provided with third through-hole in the middle of jack-post body, on rotating shaft bar 200, insert and be arranged on this third through-hole, this rotating shaft rod rear end is installed on the second bearing 204.

These rotating shaft bar 200 front center clutch shaft bearings 201 are arranged in the first groove ring of shell body, and the second bearing 204 is arranged in the second groove ring 107 of bonnet

These bonnet 101 sides are provided with the first through hole 106, and this first through hole 106 coaxially arranges with the second through hole 205 of rotating shaft rod rear end, and described spring holder 104 inserts and is connected in this first through hole 106 and the second through hole 205.

The the second groove ring 107 arranging on this bonnet 101 is fixing for spring holder 108.The first through hole 105, for the outlet port of inductance coil rotor, bonnet is provided with two protruding ossiculum sons 111 being fastened for the outlet of coil rotor

This left socle 301 has respectively the first button bit 305, the second button bit 306 and location bone 307 with right support 300 both sides, for fixing of bonnet 101.

The utility model embodiment also provides a kind of electric toothbrush, and this electric toothbrush comprises the electric toothbrush vibrating motor described in above-mentioned any embodiment.

A kind of electric toothbrush vibrating motor and the electric toothbrush that above the utility model embodiment are provided are described in detail, for one of ordinary skill in the art, according to the thought of 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. an electric toothbrush vibrating motor, it is characterized in that, it comprises shell, bonnet, rotating shaft bar, four permanent magnets, inductance coil rotor, left socle and right supports, wherein: described inductance coil rotor and rotating shaft bar are hinged, described four permanent magnets are arranged on respectively left socle and right support inner chamber, and described inductance coil rotor is wrapped in wherein by left socle, right support and permanent magnet, and output rear end and the bonnet of described rotating shaft bar are located by spring holder;

2. electric toothbrush vibrating motor according to claim 1, it is characterized in that, described inductance coil rotor is cylinder, this column axis place is provided with third through-hole, described rotating shaft bar is inserted in third through-hole, these two ends, inductance coil rotor left and right are provided with arc cam, and the central shaft of this arc cam and described four permanent magnets are concentric, and this inductance coil two ends of rotor is wound around respectively some inductance coils.

3. electric toothbrush vibrating motor according to claim 2, is characterized in that, the circular arc inner face of described four permanent magnets and the inductance coil rotor coaxial heart, in addition the outer face of described four permanent magnets respectively conductively-closed housing live.