CN110138136A - Sound wave motor and its electric toothbrush - Google Patents

Sound wave motor and its electric toothbrush Download PDF

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Publication number
CN110138136A
CN110138136A CN201910434639.3A CN201910434639A CN110138136A CN 110138136 A CN110138136 A CN 110138136A CN 201910434639 A CN201910434639 A CN 201910434639A CN 110138136 A CN110138136 A CN 110138136A
Authority
CN
China
Prior art keywords
transmission shaft
plastic cement
sound wave
wave motor
cement fastener
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910434639.3A
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Chinese (zh)
Inventor
俞松庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Mei Jian Electronic Technology Co Ltd
Original Assignee
Ningbo Mei Jian Electronic Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Mei Jian Electronic Technology Co Ltd filed Critical Ningbo Mei Jian Electronic Technology Co Ltd
Priority to CN201910434639.3A priority Critical patent/CN110138136A/en
Publication of CN110138136A publication Critical patent/CN110138136A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3481Vibrating brush body, e.g. by using eccentric weights
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure
    • H02K3/50Fastening of winding heads, equalising connectors, or connections thereto
    • H02K3/51Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/24Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003Couplings; Details of shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

The invention discloses sound wave motor, including sound wave motor body and transmission shaft, the transmission shaft is hollow shaft, and transmission shaft passes through inside the motor body, and the upper and lower ends of transmission shaft are respectively arranged with external connection end.In the present invention by the transmission shaft in motor, it is set as hollow shaft, liquid tooth paste (or simple liquid) is made the structure of entire electric toothbrush can to have been simplified from intermediate conduit flow, and when liquid tooth paste passes through this motor, the use of motor itself will not be influenced.The invention also discloses the electric toothbrushes including the above motor.The configuration of the present invention is simple, use is safe, and Oscillation Amplitude is small;Overall structure is simplified, and is more conducively manufactured.

Description

Sound wave motor and its electric toothbrush
Technical field
The present invention relates to technical field of motors, and in particular to a kind of sound wave motor and its electric toothbrush.
Background technique
With the continuous improvement of people's living standards, electric toothbrush is realized more preferably and more due to that can substitute traditional toothbrush Convenient and fast toothbrushing effect, is more and more widely used.
Electric toothbrush generallys use the high-speed motion of novel high-frequency motor, drives head toothbrushes or so high speed swinging, generates machine Tool vibration, vibration frequency is consistent or close with frequency of sound wave, to reach superpower cleaning effect.It is existing to use high-frequency electric machines Electric toothbrush electric machine in function be it is single, be unable to satisfy the multi-functional needs of electric toothbrush.
Summary of the invention
The object of the present invention is to provide a kind of sound wave motor, one in above-mentioned technical problem or multiple can solve.
It is a further object to provide a kind of electric toothbrushes using the above sound wave motor.
In order to achieve the above object, technical solution proposed by the present invention is as follows:
Sound wave motor, including sound wave motor body and transmission shaft, the transmission shaft are hollow shaft, and transmission shaft passes through the electricity The upper and lower ends of machine body interior, transmission shaft are respectively arranged with external connection end.
In the present invention by the transmission shaft in motor, it is set as hollow shaft, makes liquid tooth paste (or simple liquid) can be with From intermediate conduit flow, the structure of entire electric toothbrush is simplified, and when liquid tooth paste passes through this motor, also not It will affect the use of motor itself.
Additionally as sound wave motor body structure it is not limited here, it is public to can be disposable type on the market or patent Open the sound wave motor in document;Solid shafting in the above sound wave motor body is replaced with into the hollow shaft in the present invention, and Connecting pin (be tightly connected end) is arranged in hollow shaft both ends, so that it may so that motor itself is realized multi-functional, both can have sound wave electricity The function of machine itself, while also having the function of circulating liquid.
It is further: to be provided with multiple annular grooves as connecting pin in an end of transmission shaft.In the both ends of transmission shaft At least one end structure for being set as annular groove, used herein is multiple annular grooves as connecting pin, passes through continuous ring Connected in star connection, realization is multi-sealed, is completely embedded, effectively prevent revealing.
The structure of connecting pin is adjusted according to the component difference of connection for external connection end, it is not limited here concrete form.
It is further: the sound wave motor body include shell, stator module, rotor assembly, transmission shaft, first bearing, Second bearing, end cap;Shell and end cap form accommodation space;First bearing and second bearing are separately fixed at the two of transmission shaft End makes transmission shaft through accommodation space;The rotor assembly include upper first plastic cement fastener, the second plastic cement fastener, iron core group, around Group coil;Iron core group is through on transmission shaft, and the iron core group is connect with transmission shaft bond;First locating part and the second locating part difference It is through on transmission shaft from both ends, iron core group, the first plastic cement fastener, the second plastic cement fastener form rotor core;First plastic card The upper surface of part offsets with first bearing end face, and the lower end surface of the first plastic cement fastener and the end face of second bearing offset.Rotor core Cross section be it is I-shaped, two winding coils are symmetrically wrapped in the two sides of rotor core;The end of a thread of two winding coils is rotating around second Locating part end N encloses to form slow vibration wire loop, and described the end of a thread stretches out the external electricity of accommodating chamber from end cap later.The stator module includes Stator frame and four permanent magnets in stator frame, four permanent magnets are symmetrical in the two sides of the transmission shaft, together The magnetism of two permanent magnets of side is opposite.
Since high-frequency electric machines is by filmatic bearing conduction, shell is also powered, therefore entire motor all charges, and will cause Bigger radiation, just in case circuit board will be damaged by meeting water.Meanwhile assembling the low efficiency complicated, toothbrush is caused to produce.
Therefore in the present invention, motor rotor component is by the first plastic cement fastener, the second plastic cement fastener, iron core group, winding wire Circle composition, coil connectors are stretched out except entire motor group, and by the way that by coil, one end forms slow vibration coil drop wherein Low entire motor vibration amplitude;Make the oscilloreception of user weaker;In addition shell plays shielding action, the electricity that user is subject to Magnetic radiation can be much smaller;This circuit is all wrapped in shell by shell, and waterproof sealing effect is good, for electric toothbrush, More waterproof, gets wet or electrostatic will not damage circuit board.
Due to the whole structure for having simplified motor, assembling process is quick, and assembly efficiency is high.
Further: the first plastic cement fastener includes the first open tubular column, is arranged first in an end face of the first open tubular column I-shaped slot, the first plastic cement fastener are integrated injection molding.The first plastic cement fastener is that integrated through injection molding is formed herein, and And cooperation iron core group (I-shaped silicon steel sheet group) has slot, slot is limited silicon steel sheet group, will by coiled wire-wound coil group First plastic cement fastener and iron core group are fixed together;Hollow parts for use by.
Further: the second plastic cement fastener includes the second open tubular column, is arranged second in an end face of the second open tubular column I-shaped slot, the second I-shaped slot are opposite with the first I-shaped slot;Auricle is set on second open tubular column, is opened on auricle If metallic channel, the second plastic cement fastener is integrated injection molding.
The second plastic cement fastener is that integrated through injection molding is formed, and iron core group (I-shaped silicon steel sheet group) is cooperated to have herein Slot, slot are limited silicon steel sheet group, and the first plastic cement fastener and iron core group are fixed together by coiled wire-wound coil group;It is hollow Part for use by;It is provided with metallic channel on auricle, after the connector lug pitch of the laps of winding coil, is positioned by the metallic channel, Then end cap is then passed through to stretch out except entire motor.
Further: the motor casing is plastic housing.Anti-electric, use is safer.
Electric toothbrush, including sound wave motor described in any of the above one.Using the toothbrush of this sound wave motor, structure is more It simplifies, makes the overall volume of electric toothbrush smaller directly through motor without additional increase toothpaste currency structure, and More rapidly, manufacturing cost is low for assembly;In use, it is stretched out due to the power connection mechanism of motor from motor, external shape, therefore Without having to worry about motor inner inlet, use is more safe and reliable.
The solution have the advantages that:
The configuration of the present invention is simple, use is safe, and motor overall structure is simplified, and (oil film high frequency is led with existing high-frequency electric machines Electricity-motor bearings is powered) it compares, there is functional diversity;Using safer, motor is not afraid of chance water;And winding coil shape At circle damping make Oscillation Amplitude smaller;Assembly is rapider while production efficiency improves, and is more favorable for manufacturing.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
In the accompanying drawings:
Fig. 1 is explosion general structure schematic diagram of the invention;
Fig. 2 is the assembling schematic diagram of Fig. 1;
Fig. 3 is the cross-sectional view of Fig. 2;
Fig. 4 is in Fig. 2 without shell, without stator module schematic diagram;
Fig. 5 is to remove first bearing, second bearing schematic diagram in Fig. 4;
Fig. 6 is the first plastic cement fastener structural schematic diagram one;
Fig. 7 is the first plastic cement fastener structural schematic diagram two;
Fig. 8 is the second plastic cement fastener structural schematic diagram one;
Fig. 9 is the second plastic cement fastener structural schematic diagram two;
Figure 10 is the structural schematic diagram of transmission shaft of the invention.
Specific embodiment
Come that the present invention will be described in detail below in conjunction with attached drawing and specific embodiment, illustrative examples therein and says It is bright to be only used to explain the present invention, but it is not intended as inappropriate limitation of the present invention.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
As Figure 1-Figure 5, in the present embodiment, hollow shaft (i.e. tubulose axle, in axis is set by the transmission shaft 4 Outer wall is provided with key).And the end that transmission shaft stretches out end cap is provided with ladder connecting pin.
As shown in Figure 10, it is transmission shaft structure schematic diagram in the present invention, in Figure 10, transmission shaft has hollow 40 (to increase Add the use function of motor), one end has connection annular groove connecting pin 41, and (when guaranteeing that liquid passes through, what is connected herein is close Envelope property);Spline 42 is provided with transmission shaft sheet (for being connected to motor).With the above arrangement, this motor can be increased Use function, be especially suitable for use in field of electric toothbrushes, in this way can runner pipe by hollow shaft as liquid tooth paste Road no longer needs to additionally connect toothpaste pipeline, overall structure is allowed more to simplify.
Embodiment two
As Figure 1-Figure 5, it is different from above-described embodiment;Sound wave motor body includes shell 1, stator module 2, rotor Component 3, transmission shaft 4, first bearing 5, second bearing 6, end cap 7;Shell and end cap form accommodation space;First bearing and second Bearing is separately fixed at the both ends of transmission shaft, makes transmission shaft through accommodation space.
The rotor assembly 3 includes upper first plastic cement fastener 31, the second plastic cement fastener 32, iron core group 33, winding coil 34; Iron core group is through on transmission shaft, and the iron core group is connect with transmission shaft bond;First locating part and the second locating part are respectively from both ends It is through on transmission shaft, iron core group, the first plastic cement fastener, the second plastic cement fastener form rotor core;The first plastic cement fastener it is upper End face offsets with first bearing end face, and the lower end surface of the first plastic cement fastener and the end face of second bearing offset.
Rotor core cross section be it is I-shaped, two winding coils are symmetrically wrapped in the two sides of rotor core;Two winding coils The end of a thread encloses to form slow vibration wire loop rotating around the second locating part end N, and described the end of a thread stretches out the external electricity of accommodating chamber from end cap later.
The stator module 2 includes stator frame 21 and four permanent magnets 22 in stator frame, four permanent magnets 22 is symmetrical in the two sides of the transmission shaft 4, and the magnetism of two ipsilateral permanent magnets is opposite.
As shown in Figure 1, the opening that there is transmission shaft 4 to stretch out for the front end of shell 1, rear end is the opening of assembly, rear end and end Lid is to fasten.
There is the fixing groove of first bearing 5 in the front end of shell 1, while being also equipped with consolidating for second bearing 6 on end cap Determine slot, two bearings are separately fixed on shell 1 and end cap 7, and transmission shaft 4 is through the rotation that transmission shaft is supported in two bearings.
Transmission shaft 4 and rotor assembly be connected by key (through-hole is arranged in the intermediate of iron core group, is provided with keyway on through-hole, The spline of corresponding keyway is set on corresponding transmission shaft, rotation torque is driven by key);Stator frame 21 is fixed on end cap 7 and shell Between body 1.
Stator module 2 is that stator frame 21 is fixed in shell 1, and then permanent magnet 22, which divides, is fixed in magnet slot, four institutes State that permanent magnet is symmetrical in the two sides of the transmission shaft, the magnetism of two ipsilateral permanent magnets is opposite.Realize be powered with Magnet forms magnetic field, and driving transmission shaft 4 vibrates.
The end of a thread of winding coil 34 the second plastic cement fastener 32 end (the inconsistent end with second bearing) pitch of the laps, Being each winding coil on figure forms shock absorbing ring 35 rotating around two circles, and the oscilloreception of user is allowed to reduce, but motor itself Oscillation Amplitude it is constant ensure using.
First plastic cement fastener 31 and the second plastic cement fastener 32 are not limit its specific structure herein, it usually needs root Corresponding adjustment is done according to the structure of iron core group, in the present embodiment without limitation.
Embodiment three
As shown in Fig. 1-Fig. 9;It is different from above-described embodiment, in the present embodiment, provides the first plastic cement fastener 31, second The specific structure of plastic cement fastener 32;Wherein the first plastic cement fastener includes the first open tubular column, in an end face of the first open tubular column First I-shaped slot 311 is set, and the first plastic cement fastener is integrated injection molding.The second plastic cement fastener includes second The second I-shaped slot 343 is arranged in an end face of the second open tubular column in open tubular column, and the second I-shaped slot is I-shaped slotting with first Slot is opposite;Auricle 341 is set on second open tubular column, metallic channel 342 is opened up on auricle, the second plastic cement fastener is integrated note It is moulded into type.
Here plastic cement fastener and iron core group (I-shaped, center opens up through-hole, and keyway is arranged on through-hole) form and turn Sub- core, and being structure as a whole by 34 fixation binding of winding coil, since winding coil is and plastic cement fastener (the in winding One and the second) contact be all it is nonmetallic, after the machine has started, phase mutual friction is smaller, improves service life.
Example IV
Electric toothbrush, including sound wave motor described in any of the above one.
This power toothbrush structure is reasonable, and number of elements is few, and processing technology is simple, easily fabricated, at low cost, is easy to position, Long service life.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (7)

1. sound wave motor, it is characterised in that: including sound wave motor body and transmission shaft, the transmission shaft is hollow shaft, transmission shaft Inside the motor body, the upper and lower ends of transmission shaft are respectively arranged with external connection end.
2. sound wave motor according to claim 1, it is characterised in that: it is recessed that an end of transmission shaft is provided with multiple annulars Slot is as connecting pin.
3. according to right want 1 described in sound wave motor, it is characterised in that: the sound wave motor body include shell, stator module, Rotor assembly, transmission shaft, first bearing, second bearing, end cap;
Shell and end cap form accommodation space;First bearing and second bearing are separately fixed at the both ends of transmission shaft, make transmission shaft Through accommodation space;
The rotor assembly includes upper first plastic cement fastener, the second plastic cement fastener, iron core group, winding coil;
Iron core group is through on transmission shaft, and the iron core group is connect with transmission shaft bond;First locating part and the second locating part respectively from Both ends are through on transmission shaft, and iron core group, the first plastic cement fastener, the second plastic cement fastener form rotor core;The first plastic cement fastener Upper surface offset with first bearing end face, the lower end surface of the first plastic cement fastener and the end face of second bearing offset;
Rotor core cross section be it is I-shaped, two winding coils are symmetrically wrapped in the two sides of rotor core;The end of a thread of two winding coils It encloses to form slow vibration wire loop rotating around the second locating part end N, described the end of a thread stretches out the external electricity of accommodating chamber from end cap later;
The stator module includes stator frame and four permanent magnets in stator frame, and four permanent magnets are in the transmission The two sides of axis are symmetrical, and the magnetism of two ipsilateral permanent magnets is opposite.
4. sound wave motor according to claim 3, it is characterised in that: the first plastic cement fastener includes the first open tubular column, The first I-shaped slot is set in an end face of the first open tubular column, the first plastic cement fastener is integrated injection molding.
5. sound wave motor according to claim 3, it is characterised in that: the second plastic cement fastener includes the second open tubular column, The second I-shaped slot is set in an end face of the second open tubular column, the second I-shaped slot is opposite with the first I-shaped slot;The Auricle is set on two open tubular columns, metallic channel is opened up on auricle, the second plastic cement fastener is integrated injection molding.
6. sound wave motor according to claim 3, it is characterised in that: the motor casing is plastic housing.
7. electric toothbrush, it is characterised in that: including sound wave motor described in any of the above one.
CN201910434639.3A 2019-05-23 2019-05-23 Sound wave motor and its electric toothbrush Pending CN110138136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910434639.3A CN110138136A (en) 2019-05-23 2019-05-23 Sound wave motor and its electric toothbrush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910434639.3A CN110138136A (en) 2019-05-23 2019-05-23 Sound wave motor and its electric toothbrush

Publications (1)

Publication Number Publication Date
CN110138136A true CN110138136A (en) 2019-08-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910434639.3A Pending CN110138136A (en) 2019-05-23 2019-05-23 Sound wave motor and its electric toothbrush

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021120016A1 (en) * 2019-12-17 2021-06-24 王仲彬 Electric sonic toothbrush and electric toothbrush
WO2023272767A1 (en) * 2021-06-29 2023-01-05 潮州市乐久塑料有限公司 Electric toothbrush

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207368850U (en) * 2017-10-23 2018-05-15 彭志明 A kind of sound wave motor
CN208046421U (en) * 2018-02-08 2018-11-02 宝龙电子集团有限公司 A kind of electric toothbrush motor of high life
CN109067131A (en) * 2018-09-13 2018-12-21 中科(深圳)创新创意科技有限公司 A kind of electric toothbrush motor and the electric toothbrush comprising the electric toothbrush motor
CN208479445U (en) * 2018-08-03 2019-02-05 余姚市科达微电机制造有限公司 A kind of electric toothbrush and its magnetic field quadrupole positioning corner limit vibrating motor
CN208864536U (en) * 2018-02-02 2019-05-17 深圳市一晤未来科技有限公司 Fully-automatic intelligent toothbrush
CN209982249U (en) * 2019-05-23 2020-01-21 宁波市美健电子科技有限公司 Sound wave motor and electric toothbrush thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207368850U (en) * 2017-10-23 2018-05-15 彭志明 A kind of sound wave motor
CN208864536U (en) * 2018-02-02 2019-05-17 深圳市一晤未来科技有限公司 Fully-automatic intelligent toothbrush
CN208046421U (en) * 2018-02-08 2018-11-02 宝龙电子集团有限公司 A kind of electric toothbrush motor of high life
CN208479445U (en) * 2018-08-03 2019-02-05 余姚市科达微电机制造有限公司 A kind of electric toothbrush and its magnetic field quadrupole positioning corner limit vibrating motor
CN109067131A (en) * 2018-09-13 2018-12-21 中科(深圳)创新创意科技有限公司 A kind of electric toothbrush motor and the electric toothbrush comprising the electric toothbrush motor
CN209982249U (en) * 2019-05-23 2020-01-21 宁波市美健电子科技有限公司 Sound wave motor and electric toothbrush thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021120016A1 (en) * 2019-12-17 2021-06-24 王仲彬 Electric sonic toothbrush and electric toothbrush
WO2023272767A1 (en) * 2021-06-29 2023-01-05 潮州市乐久塑料有限公司 Electric toothbrush

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