CN214073707U - Sound wave motor and electric toothbrush - Google Patents
Sound wave motor and electric toothbrush Download PDFInfo
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- CN214073707U CN214073707U CN202022334887.1U CN202022334887U CN214073707U CN 214073707 U CN214073707 U CN 214073707U CN 202022334887 U CN202022334887 U CN 202022334887U CN 214073707 U CN214073707 U CN 214073707U
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Abstract
The utility model discloses a sound wave motor and electric toothbrush, wherein the sound wave motor includes: a housing; one end of the transmission shaft is connected to the bottom surface of the machine shell through a first bearing, and the other end of the transmission shaft is connected to the top surface of the machine shell through a second bearing; the rotor core is connected to the transmission shaft, and a coil winding is arranged on the rotor core; magnetism portion, it includes first magnetic substance, second magnetic substance and third magnetic substance, and first magnetic substance is located the magnetic pole both sides of second magnetic substance respectively with the third magnetic substance, and the direction of magnetizing of first magnetic substance is just to coil winding, and the direction of magnetizing of third magnetic substance deviates from coil winding, the utility model discloses not only changed the biggest magnetic field central direction, also changed magnetism and felt linear density, strengthened magnetic field intensity, and then when having leaded to coil winding circular telegram, the magnetic pole is stronger to coil winding's effort, and the swing range of rotor core is also enlarged simultaneously, and the vibration intensity, the frequency and the swing amplitude that the transmission shaft was derived have obtained obvious reinforcing.
Description
Technical Field
The utility model relates to an electric motor especially relates to a sound wave motor and an electric toothbrush.
Background
Nowadays, with the continuous improvement of the electric toothbrush technology, the electric toothbrush has become increasingly popular, and the electric toothbrush utilizes a high-frequency reciprocating vibration motor to drive a brush head to rotate or vibrate so as to achieve the tooth cleaning effect. According to the motion principle difference, the toothbrush can be divided into a plurality of types, like vibrations class toothbrush, vibrations class toothbrush on the market utilize the brush head of high frequency swing, the action of brushing teeth is washed to the completion that can be high-efficient deep, also can play the massage effect to the gum simultaneously, if need improve the first vibration intensity of toothbrush, the output of motor need be increaseed usually, make magnetic field intensity stronger, thereby increase the first vibration intensity of toothbrush, but the consumption of motor also can increase, influence the duration of toothbrush, reduce user's use and experience.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide an acoustic wave motor and an electric toothbrush to solve one or more technical problems in the prior art, and to provide at least one of a useful choice and creation conditions.
The utility model provides a solution of its technical problem is:
an acoustic wave motor comprising: a housing; one end of the transmission shaft is connected to the bottom surface of the machine shell through a first bearing, and the other end of the transmission shaft is connected to the top surface of the machine shell through a second bearing; the rotor core is connected to the transmission shaft, and a coil winding is arranged on the rotor core; the magnetic part comprises a first magnetic body, a second magnetic body and a third magnetic body, the second magnetic body is located on a magnetizing direction extension line of the coil winding, the first magnetic body and the third magnetic body are located on two sides of a magnetic pole of the second magnetic body respectively, the magnetizing direction of the first magnetic body is right opposite to the coil winding, and the magnetizing direction of the third magnetic body deviates from the coil winding.
The technical scheme at least has the following beneficial effects: the magnetic part in the casing comprises a first magnetic body, a second magnetic body and a third magnetic body, wherein one magnetic pole of the first magnetic body and the third magnetic body is opposite to the coil winding, the two magnetic poles of the second magnetic body face to the first magnetic body and the third magnetic body respectively, so that the polarity of the second magnetic body in the middle is influenced on the magnetic fields of the first magnetic body and the third magnetic body which are positioned at two sides, and the magnetic flux lines of the first magnetic body and the third magnetic body are extruded and gathered to two sides by the magnetic pole of the second magnetic body due to the homopolar repulsion of the magnetic poles, thereby leading the magnetic flux lines of the two magnets of the first magnetic body and the third magnetic body to be concentrated to the respective outer sides in a large amount, not only changing the central direction of the maximum magnetic field, but also changing the magnetic induction line density and enhancing the magnetic field intensity, and then when the coil winding is electrified, the acting force of the magnetic pole on the coil winding is stronger, the swing range of the rotor core is enlarged, the vibration strength, the frequency and the swing amplitude which are conducted by the transmission shaft are obviously enhanced, the same performance is obtained if the same performance is required, the power consumption of the improved motor is lower, the overall structural design is more compact, the investment of raw materials is reduced, if the magnet can be shorter, and the like, and the production cost is reduced.
As a further improvement of the above technical solution, a stator core is connected in the casing, a through channel is provided in the stator core along a vertical direction, the rotor core is located in the through channel, and the first magnetic body, the second magnetic body, and the third magnetic body are located on an inner side wall of the through channel. The first magnetic body, the second magnetic body and the third magnetic body are arranged on the rotor core, so that the magnetic part and the shell can be separated from each other, the disassembly, the assembly and the maintenance are more convenient, and in actual use, the rotor core can also be made of metal materials such as iron and copper, and the magnetism can be enhanced.
As a further improvement of the above technical solution, the inner side wall of the through channel is opposite to the first magnetic body, the second magnetic body and the third magnetic body, and the first accommodating groove, the second accommodating groove and the third accommodating groove are respectively formed in the first magnetic body, the second magnetic body and the third magnetic body, and the first magnetic body, the second magnetic body and the third magnetic body are respectively located in the first accommodating groove, the second accommodating groove and the third accommodating groove. The holding tank provides spacing, the space of installation for the magnetic substance for the mounting structure of magnetism portion is more firm, and whole structure is more stable at operation in-process.
As a further improvement of the above technical solution, the number of the magnetic portions is two, the number of the coil windings is two, the two coil windings are respectively located on two sides of the transmission shaft, and the two magnetic portions are respectively opposite to the two coil windings. One magnetic part and one coil winding are used as a swing driving unit, namely two swing driving units are used for driving two sides of the transmission shaft respectively, so that the swing efficiency of the transmission shaft is improved.
As a further improvement of the above technical solution, a first bushing is disposed between the transmission shaft and the first bearing. The first shaft sleeve can bear radial load borne by the transmission shaft, and the structural stability of the transmission shaft and the first bearing connected to the top surface of the machine shell is improved.
As a further improvement of the above technical solution, a second bushing is disposed between the transmission shaft and the second bearing. The second shaft sleeve can bear radial load borne by the transmission shaft, and the structural stability of the transmission shaft and the transmission shaft connected to the bottom surface of the machine shell through the second bearing is improved.
An electric toothbrush comprises a brush head, a storage battery and the sound wave motor, wherein the end part of a transmission shaft extends out of a machine shell from the top surface of the machine shell, the brush head is sleeved on the transmission shaft, and the storage battery is electrically connected with a coil winding.
The technical scheme at least has the following beneficial effects: the during operation provides the electric energy to the coil winding by the battery, and the coil winding is after letting in high frequency alternating current, and its inside produces the magnetic field of periodic alternation change, again because the magnetic force effect of first magnetic substance, second magnetic substance and third magnetic substance makes the coil winding high frequency swing between the magnetic substance, cup joints the transmission shaft with the brush head on, and the swing of transmission shaft conduction can drive the swing of brush head, and the brush head can carry out more efficient cleanness to the energy consumption has been reduced.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
FIG. 1 is a top view of the present invention with the housing removed;
fig. 2 is a perspective view of the utility model with the casing removed.
In the drawings: 100-transmission shaft, 210-first bearing, 220-second bearing, 300-rotor core, 310-coil winding, 410-first magnetic body, 420-second magnetic body, 430-third magnetic body, 500-stator core, 610-first shaft sleeve and 620-second shaft sleeve.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1 and 2, an acoustic wave motor includes: a housing; a transmission shaft 100 having one end connected to the bottom surface of the cabinet through a first bearing 210 and the other end of the transmission shaft 100 connected to the top surface of the cabinet through a second bearing 220; a rotor core 300 connected to the drive shaft 100, the rotor core 300 having a coil winding 310; the magnetic part comprises a first magnetic body 410, a second magnetic body 420 and a third magnetic body 430, the second magnetic body 420 is located on the extension line of the magnetizing direction of the coil winding 310, the first magnetic body 410 and the third magnetic body 430 are respectively located on two sides of the magnetic pole of the second magnetic body 420, the magnetizing direction of the first magnetic body 410 is right opposite to the coil winding 310, and the magnetizing direction of the third magnetic body 430 deviates from the coil winding 310.
As can be seen from the above, the magnetic part in the housing includes the first magnetic body 410, the second magnetic body 420 and the third magnetic body 430, wherein one of the magnetic poles of the first magnetic body 410 and the third magnetic body 430 faces the coil winding 310, and the two magnetic poles of the first magnetic body 410 and the third magnetic body 430 facing the coil winding 310 are opposite, and the two magnetic poles of the second magnetic body 420 respectively face the first magnetic body 410 and the third magnetic body 430, so that the polarity of the second magnetic body 420 in the middle exerts an influence on the magnetic fields of the first magnetic body 410 and the third magnetic body 430 at both sides, and due to the repulsion of the same poles of the magnetic poles, the magnetic flux lines of the first magnetic body 410 and the third magnetic body 430 are squeezed and gathered by the magnetic poles of the second magnetic body 420 to both sides, so that the magnetic flux lines of the two magnetic bodies of the first magnetic body 410 and the third magnetic body 430 are concentrated to the respective outer sides in a large amount, thereby not only changing the maximum magnetic field center direction, the magnetic induction linear density is changed, the magnetic field intensity is enhanced, and further, when the coil winding 310 is electrified, the acting force of the magnetic poles on the coil winding 310 is stronger, meanwhile, the swing range of the rotor core 300 is also enlarged, the vibration intensity, the frequency and the swing amplitude which are conducted by the transmission shaft 100 are obviously enhanced, if the same performance is required to be obtained, the improved motor is lower in power consumption, the overall structure design is more compact, the input of raw materials is reduced, if the magnet can be shorter, and the like, and the production cost is reduced.
In this embodiment, a stator core 500 is connected to the inside of the housing, a through channel is disposed in the stator core 500 along a vertical direction, the rotor core 300 is disposed in the through channel, and the first magnetic body 410, the second magnetic body 420, and the third magnetic body 430 are disposed on an inner sidewall of the through channel. The first magnetic member 410, the second magnetic member 420 and the third magnetic member 430 are disposed on the rotor core 300, so that the magnetic portion and the casing can be separated from each other, and the rotor core 300 can be more conveniently disassembled, assembled and maintained.
In the above embodiment, the cross-section of the first magnetic body 410, the second magnetic body 420, and the third magnetic body 430 may be rectangular, elliptical, circular, or the like, and the three magnetic bodies may be directly bonded to the chassis by glue, or may be directly connected to the chassis by other connecting members, in this embodiment, the inner sidewall of the through channel directly faces the first magnetic body 410, the second magnetic body 420, and the third magnetic body 430, and the first magnetic body 410, the second magnetic body 420, and the third magnetic body 430 are respectively disposed in the first receiving groove, the second receiving groove, and the third receiving groove. The holding tank provides spacing, the space of installation for the magnetic substance for the mounting structure of magnetism portion is more firm, and whole structure is more stable at operation in-process.
In this embodiment, the number of the magnetic portions is two, the number of the coil windings 310 is two, the two coil windings 310 are respectively located on two sides of the transmission shaft 100, and the two magnetic portions respectively face the two coil windings 310. One magnetic part and one coil winding 310 are used as a swing driving unit, namely two swing driving units, which respectively drive two sides of the transmission shaft 100, so that the swing efficiency of the transmission shaft 100 is improved.
In order to better improve the stability of the connection structure between the transmission shaft 100 and the housing, in the present embodiment, a first sleeve 610 is disposed between the transmission shaft 100 and the first bearing 210. The first bushing 610 can withstand the radial loads experienced by the driveshaft 100.
Also, in order to further improve the stability of the connection structure between the transmission shaft 100 and the housing, a second bushing 620 is disposed between the transmission shaft 100 and the second bearing 220. The second bushing 620 can withstand the radial loads to which the driveshaft 100 is subjected.
An electric toothbrush comprises a brush head, a storage battery and the sound wave motor, wherein the end part of a transmission shaft 100 extends out of a machine shell from the top surface of the machine shell, the brush head is sleeved on the transmission shaft 100, and the storage battery is electrically connected to a coil winding 310.
When the electric toothbrush works, the storage battery supplies electric energy to the coil winding 310, the coil winding 310 generates a periodically and alternately changed magnetic field after high-frequency alternating current is introduced into the coil winding 310, and the coil winding 310 swings at high frequency among the magnetic bodies under the action of the magnetic force of the first magnetic body 410, the second magnetic body 420 and the third magnetic body 430, so that the brush head is sleeved on the transmission shaft 100, the swing conducted by the transmission shaft 100 can drive the brush head to swing, the brush head can be cleaned more efficiently, and the energy consumption is reduced.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (7)
1. An acoustic wave motor, characterized by: the method comprises the following steps:
a housing;
one end of the transmission shaft (100) is connected to the bottom surface of the machine shell through a first bearing (210), and the other end of the transmission shaft (100) is connected to the top surface of the machine shell through a second bearing (220);
a rotor core (300) connected to the transmission shaft (100), the rotor core (300) having a coil winding (310) provided thereon;
the magnetism portion, it includes first magnetic substance (410), second magnetic substance (420) and third magnetic substance (430), second magnetic substance (420) are located on the direction extension of magnetizing of coil winding (310), first magnetic substance (410) with third magnetic substance (430) are located respectively the magnetic pole both sides of second magnetic substance (420), the direction of magnetizing of first magnetic substance (410) is just right coil winding (310), the direction of magnetizing of third magnetic substance (430) deviates from coil winding (310).
2. The acoustic wave motor of claim 1, wherein: stator core (500) is connected in the casing, be provided with the passageway that runs through along vertical direction in stator core (500), rotor core (300) are located run through in the passageway, first magnetic substance (410), second magnetic substance (420) and third magnetic substance (430) are located on the inside wall of passageway runs through.
3. The acoustic wave motor of claim 2, wherein: the inner side wall of the through channel is right opposite to the first magnetic body (410), the second magnetic body (420) and the third magnetic body (430) and is provided with a first accommodating groove, a second accommodating groove and a third accommodating groove respectively, and the first magnetic body (410), the second magnetic body (420) and the third magnetic body (430) are located in the first accommodating groove, the second accommodating groove and the third accommodating groove respectively.
4. The acoustic wave motor of claim 2, wherein: the number of the magnetic parts is two, the number of the coil windings (310) is two, the two coil windings (310) are respectively located on two sides of the transmission shaft (100), and the two magnetic parts are respectively opposite to the two coil windings (310).
5. The acoustic wave motor of claim 2, wherein: a first shaft sleeve (610) is arranged between the transmission shaft (100) and the first bearing (210).
6. The acoustic wave motor of claim 2, wherein: a second shaft sleeve (620) is arranged between the transmission shaft (100) and the second bearing (220).
7. An electric toothbrush characterized by: the sound wave motor comprises a brush head, a storage battery and the sound wave motor as claimed in any one of claims 1 to 6, wherein the end part of the transmission shaft (100) extends out of the machine shell from the top surface of the machine shell, the brush head is sleeved on the transmission shaft (100), and the storage battery is electrically connected to the coil winding (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022334887.1U CN214073707U (en) | 2020-10-19 | 2020-10-19 | Sound wave motor and electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022334887.1U CN214073707U (en) | 2020-10-19 | 2020-10-19 | Sound wave motor and electric toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214073707U true CN214073707U (en) | 2021-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022334887.1U Active CN214073707U (en) | 2020-10-19 | 2020-10-19 | Sound wave motor and electric toothbrush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214073707U (en) |
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2020
- 2020-10-19 CN CN202022334887.1U patent/CN214073707U/en active Active
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Effective date of registration: 20230824 Address after: 510620 rooms 2001, 2002, 2003, 2004 and 2005, No. 239, Tianhe North Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Xingxing Yuedong Co.,Ltd. Address before: 518117 Room 301, building B, No.5, Lane 1, Baoqin Road, Pingdi Street Central Community, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN JINGRUICHANG TECHNOLOGY Co.,Ltd. |