CN108524041B - Reciprocating rotary mechanism and electric dental care appliance adopting same - Google Patents
Reciprocating rotary mechanism and electric dental care appliance adopting same Download PDFInfo
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- CN108524041B CN108524041B CN201810071566.1A CN201810071566A CN108524041B CN 108524041 B CN108524041 B CN 108524041B CN 201810071566 A CN201810071566 A CN 201810071566A CN 108524041 B CN108524041 B CN 108524041B
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- Prior art keywords
- rotating
- rotating piece
- rotary mechanism
- pole
- poles
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- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000004804 winding Methods 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/3409—Power-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
- A61C17/3418—Rotation around the axis of the toothbrush handle
Landscapes
- 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
A reciprocating rotation mechanism comprises a silicon steel sheet, a rotating piece and a positioning mechanism; the silicon steel sheet is provided with a pole, and a coil is wound outside the pole; the rotating piece is connected with the positioning mechanism, and the positioning mechanism enables the rotating piece to be positioned up and down and to rotate circumferentially; the rotating piece is provided with a magnet, and the two poles of the magnet are opposite to the pole post of the silicon steel sheet; the coil is connected with a commutator for controlling current commutation. An electric dental care appliance comprises a handle, a brush head and a reciprocating rotating mechanism, wherein the brush head is sleeved on the reciprocating rotating mechanism, the reciprocating rotating mechanism is the reciprocating rotating mechanism, and the brush head is sleeved on a rotating piece. The invention adopts the functions of the silicon steel sheet and the magnet, realizes the reciprocating rotation of the rotating member by using a simpler structure, and has low cost.
Description
Technical Field
The present invention relates to a reciprocating rotary mechanism and an electric dental care appliance.
Background
The existing reciprocating rotating mechanism generally adopts a rotating motor directly, so that the cost is high, and the maintenance is difficult once the reciprocating rotating mechanism is damaged. In the field of electric toothbrushes, a rotating motor is usually connected to an output end to drive a brush head to rotate reciprocally, which also has the above-mentioned problems.
Disclosure of Invention
In order to overcome the defects of the conventional reciprocating rotary mechanism, the invention provides the reciprocating rotary mechanism with low cost and simple structure, and provides an electric dental care appliance adopting the reciprocating rotary mechanism.
The technical scheme for solving the technical problems is as follows: a reciprocating rotation mechanism comprises a silicon steel sheet, a rotating piece and a positioning mechanism;
the silicon steel sheet is provided with a pole, and a coil is wound outside the pole;
the rotating piece is connected with the positioning mechanism, and the positioning mechanism enables the rotating piece to be positioned up and down and to rotate circumferentially;
the rotating piece is provided with a magnet, and the two poles of the magnet are opposite to the pole post of the silicon steel sheet;
the coil is connected with a commutator for controlling current commutation.
Further, the two poles are connected into a whole at the lower end, the coils wound on the two poles are the same coil, the surrounding directions of the two poles are the same, the rotating piece is provided with magnets corresponding to the two poles, and the positions of the magnets corresponding to the two poles are provided with the same magnetic pole distribution.
Further, the rotating piece comprises a rotating plate, and the magnet is arranged on the rotating plate; the rotating plate is provided with an axial transmission rod, and the transmission rod is fixed with the rotating plate.
Further, the positioning mechanism comprises an upper positioning device and a lower positioning device;
the lower positioning device is used for axially positioning the lower part of the rotating piece, and the upper positioning device is used for axially positioning the upper part of the rotating piece.
Further, the lower positioning device comprises a base, and the pole of the silicon steel sheet is inserted into the base and positioned; the lower end of the transmission rod is provided with an elastic sheet, and the lower end of the elastic sheet is connected with the base.
Further, a winding frame is arranged on the base, the pole post of the silicon steel sheet penetrates into the winding frame, and the coil is wound on the winding frame.
Further, the upper positioning device comprises an upper fixing frame fixed with the upper part of the winding frame, and the transmission rod penetrates through the upper fixing frame and is axially positioned.
Further, a bearing is arranged in the upper fixing frame, and the transmission rod passes through the bearing so as to realize axial positioning.
Further, the upper fixing frame is provided with a bearing accommodating cavity, and the bearing is arranged in the bearing accommodating cavity.
An electric dental care appliance comprising a handle, a brush head and a reciprocating rotary mechanism, wherein the brush head is sleeved on the reciprocating rotary mechanism, the reciprocating rotary mechanism is the reciprocating rotary mechanism as claimed in any one of claims 1 to 9, and the brush head is sleeved on the rotary piece.
When the invention is used, the poles of the silicon steel sheet generate magnetism after the coil is electrified, the two poles of the magnet on the rotating piece correspond to the poles of the silicon steel sheet, and the rotating piece is stressed by two opposite directions according to the principle that like poles repel each other and opposite poles attract each other; meanwhile, as the rotating piece is positioned up and down, the rotating piece cannot turn up and down, and can only rotate circumferentially under the condition that two parts are subjected to opposite direction force, so that the rotation of the rotating piece is realized; when the current in the coil is reversed, the force applied to the rotating member is reversed, thereby realizing the reverse rotation of the rotating member.
The invention has the beneficial effects that: adopt the effect of silicon steel sheet and magnet, utilize comparatively simple structure to realize the reciprocal rotation of rotating the piece, with low costs.
Drawings
Fig. 1 is a structural diagram of the present invention.
Fig. 2 is an assembly schematic of the upper mount.
Fig. 3 is a schematic structural view of the rotary member.
Fig. 4 is an assembly schematic diagram of a silicon steel sheet and a coil.
Fig. 5 is a winding diagram of the coil.
Fig. 6 is an installation schematic of a silicon steel sheet.
Fig. 7 is an installation explosion diagram of the silicon steel sheet.
Fig. 8 is a schematic diagram of the operation of the present invention.
Fig. 9 is a force-bearing schematic diagram of the rotating member.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Referring to fig. 1 to 9, an electric dental care apparatus, i.e., an electric toothbrush, includes a handle, a brush head, and a reciprocating rotation mechanism including a silicon steel sheet 1, a rotating member 2, and a positioning mechanism.
The silicon steel sheet 1 is provided with a pole 3, and a coil 4 is wound outside the pole 3.
The rotating member 2 is connected with the positioning mechanism, and the positioning mechanism enables the rotating member 2 to be positioned up and down and to rotate circumferentially, namely, the rotating member 2 can rotate but cannot move up and down.
The rotating piece 2 is provided with a magnet 5, and two poles of the magnet 5 are opposite to the pole 3 of the silicon steel sheet. It should be noted that, the fact that the rotating member is provided with a magnet means that the rotating member is provided with a magnet, and then the rotating member is provided with a magnet, or the magnet itself is the rotating member, and the magnet can rotate.
The coil 4 is connected with a commutator for controlling current commutation. The electric toothbrush uses a dc power source and the commutator may be a commutator commonly known in the art, such as an H-bridge drive circuit.
The brush head of the electric toothbrush is sleeved on the rotating piece 2.
After the coil is electrified, the pole 3 of the silicon steel sheet generates magnetism, the magnetic pole at the end part of the pole is N pole or S pole, and the two poles of the magnet 5 on the rotating piece correspond to the pole 3 of the silicon steel sheet, so that the rotating piece 2 is stressed by two opposite directions at the magnet according to the principle that like poles repel each other and opposite sides attract each other; meanwhile, as the rotating piece 2 is positioned up and down, the rotating piece 2 cannot be turned up and down, and can only rotate circumferentially under the condition that two parts are stressed by opposite directions, so that the rotating piece 2 can rotate; when the current in the coil 4 is reversed, the force applied to the rotating member 2 is reversed, thereby realizing the reverse rotation of the rotating member 2. The brush head can be driven to rotate reciprocally by the reciprocal rotation of the rotating member 2.
In this embodiment, the two poles 3 are provided, the two poles 3 are connected together at the lower end, the coils 4 wound on the two poles 3 are the same coil (i.e. the wire wound on the two poles is a wire) and the surrounding directions on the two poles are the same, so that the current directions of the coils on the two poles 3 are the same when the coils are electrified, and the magnetic poles on the end faces of the two poles are the same. The rotor 2 has magnets 5 corresponding to the two poles 2, and the corresponding positions of the magnets and the two poles have the same magnetic pole distribution, at this time, the two magnets 5 may have two identical magnetic pole distributions (if the front side of one magnet is the N pole and the rear side is the S pole, the front side of the other magnet is also the S pole, and if the front side of one magnet is the S pole and the rear side is the N pole, the front side of the other magnet is also the S pole and the rear side is also the N pole), or if one magnet is adopted, the front side of the magnet is the S pole and the rear side is the N pole, or the front side is the N pole and the rear side is the S pole, so that the corresponding position of the magnet and the two poles has the same magnetic pole distribution naturally. After the coil 4 is electrified, the current directions of the coils on the two polar posts are the same, so that the polarities of the upper ends of the two polar posts 3 are the same, and the stress directions of the two magnets 5 (or the two ends of one magnet) on the rotating member are the same, thereby further facilitating the rotation of the rotating member 2.
In this embodiment, the rotating member includes a rotating plate 6, and the magnet 5 is disposed on the rotating plate 6, preferably on the back surface of the rotating plate. Of course, the magnet itself may constitute the rotating plate, so that the effect of combining the rotating plate and the magnet is achieved, which is also "the magnet is provided on the rotating plate" in another sense. The rotating plate 6 is provided with an axial transmission rod 7, and the transmission rod 7 is fixed with the rotating plate 6. The lower part of the transmission rod 7 is positioned between the two polar posts, and the rotating plate 6 is positioned above the two polar posts. The brush head sleeve is sleeved on the upper part of the transmission rod 7. When the magnet and the rotating plate are combined into a whole, the transmission rod is arranged on the magnet, and the transmission rod is fixed with the magnet. The lower part of the transmission rod 7 is positioned between the two polar posts, and the rotating plate 6 is positioned above the two polar posts. The brush head sleeve is sleeved on the upper part of the transmission rod 7.
In this embodiment, the positioning mechanism includes an upper positioning device and a lower positioning device; the lower positioning device is used for axially positioning the lower part of the rotating piece, and the upper positioning device is used for axially positioning the upper part of the rotating piece. The lower positioning device in this embodiment includes a base 8, into which the pole 3 of the silicon steel sheet is inserted and positioned, and a through hole is usually formed in the base 8, into which the pole 3 of the silicon steel sheet is inserted to be positioned, or other manners, such as a clamping groove formed in the base, into which the silicon steel sheet is clamped, etc.; the lower end of the transmission rod is provided with an elastic sheet 11, and the lower end of the elastic sheet is inserted into the base, so that the lower end of the rotating piece is positioned. In this embodiment, the base includes a base body 9 and a bottom cover 10, the base body has an insertion slot, after the elastic sheet 11 is inserted into the insertion slot, the bottom cover 10 is covered in the insertion slot, and the bottom cover 10 and the base body 9 are fixed by screws or rivets, so as to achieve the positioning of the elastic sheet 11. Of course, the elastic sheet 11 may be fixed to the base by other means, such as inserting the elastic sheet directly into the base and having interference fit with the base, connecting the elastic sheet to the base by a connecting member (such as a screw, a rivet, etc.), or bonding the elastic sheet to the base. The elastic sheet has the functions that: the rotation of the rotating member 2 is not restricted due to its elastic action during the rotation of the rotating member 2, and the elastic action thereof also helps the return of the rotating member 2. The elastic member 11 is typically in the form of a metal sheet.
In this embodiment, the base 8 is provided with a winding frame 12, the pole 3 of the silicon steel sheet penetrates into the winding frame 12, and the coil 4 is wound on the winding frame 12. The upper positioning device comprises an upper fixing frame 13 fixed with the upper part of the winding frame 12, in this embodiment, the upper fixing frame 13 is connected with the winding frame 12 by a buckle, and of course, the upper fixing frame can be positioned by other connection modes such as screw connection. The transmission rod 7 passes through the upper fixing frame 13 and is axially positioned, a bearing 14 is arranged in the upper fixing frame 13 in the embodiment, and the transmission rod 7 passes through the bearing 14 so as to realize axial positioning. The upper fixing frame 13 in this embodiment is provided with a bearing accommodating cavity 15, and the bearing 14 is disposed in the bearing accommodating cavity 15. Of course, other structural forms can be adopted to realize the axial positioning of the transmission rod, for example, a snap spring is arranged on the transmission rod, and the snap spring is positioned in the upper fixing frame and is in contact with the inner side surface of the upper end surface of the upper fixing frame.
The reciprocating rotary mechanism is typically mounted within the handle with the rotatable member (in the above embodiments, the drive rod) extending at least partially out of the handle so that the brush head can be sleeved thereon. It is noted that the handle in this patent is a handle in a broad sense, and includes various cases, for example, the handle is a handle for holding, and the rotating member (the transmission lever in the above embodiment) protrudes from the upper end of the handle; in addition, the handle can also be the following mechanism: the handle comprises a handle body and a transmission rod, wherein the transmission rod can be connected with the handle body or a mechanism (such as a bracket for installing a circuit board or a battery) in the handle body, the handle body and the transmission rod form a handle in a broad sense, and the reciprocating rotating mechanism can be fixed in the handle body or the transmission rod.
The manner in which the reciprocating rotary mechanism is fixed in the handle may be in the prior art, that is, the manner in which the vibration motor and the handle are fixed in the existing electric toothbrush is not described herein.
The reciprocating rotary mechanism described above may be applied to fields other than electric toothbrushes, and may be used in any case where reciprocating rotary motion is required.
Claims (7)
1. A reciprocating rotary mechanism, characterized in that: comprises a silicon steel sheet, a rotating piece and a positioning mechanism;
the silicon steel sheet is provided with a pole, and a coil is wound outside the pole;
the rotating piece is connected with the positioning mechanism, and the positioning mechanism enables the rotating piece to be positioned up and down and to rotate circumferentially;
the rotating piece is provided with a magnet, and the two poles of the magnet are opposite to the pole post of the silicon steel sheet;
the coil is connected with a commutator for controlling current commutation;
the two poles are connected into a whole at the lower end, coils wound on the two poles are the same coil, the surrounding directions of the two poles are the same, the rotating piece is provided with magnets corresponding to the two poles, and the positions of the magnets corresponding to the two poles are provided with the same magnetic pole distribution;
the rotating piece comprises a rotating plate, and the magnet is arranged on the rotating plate;
the rotating plate is provided with an axial transmission rod, and the transmission rod is fixed with the rotating plate;
the positioning mechanism comprises an upper positioning device and a lower positioning device;
the lower positioning device is used for axially positioning the lower part of the rotating piece, and the upper positioning device is used for axially positioning the upper part of the rotating piece.
2. The reciprocating rotary mechanism of claim 1, wherein: the lower positioning device comprises a base, and a pole of the silicon steel sheet is inserted into the base and positioned;
the lower end of the transmission rod is provided with an elastic sheet, and the lower end of the elastic sheet is connected with the base.
3. The reciprocating rotary mechanism of claim 2, wherein: the base on be equipped with the bobbin, the utmost point post of silicon steel sheet penetrate in the bobbin, the coil winding establish on the bobbin.
4. A reciprocating rotary mechanism as claimed in claim 3, wherein: the upper positioning device comprises an upper fixing frame fixed with the upper part of the winding frame, and the transmission rod penetrates through the upper fixing frame and is axially positioned.
5. The reciprocating rotary mechanism of claim 4, wherein: the upper fixing frame is internally provided with a bearing, and the transmission rod passes through the bearing so as to realize axial positioning.
6. The reciprocating rotary mechanism of claim 5, wherein: the upper fixing frame is provided with a bearing accommodating cavity, and the bearing is arranged in the bearing accommodating cavity.
7. The utility model provides an electronic dental care implement, includes handle, brush head, reciprocal rotary mechanism, the brush head be in reciprocal rotary mechanism on, its characterized in that: the reciprocating rotary mechanism is as claimed in any one of claims 1 to 6, and the brush head is sleeved on the rotating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071566.1A CN108524041B (en) | 2018-01-25 | 2018-01-25 | Reciprocating rotary mechanism and electric dental care appliance adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071566.1A CN108524041B (en) | 2018-01-25 | 2018-01-25 | Reciprocating rotary mechanism and electric dental care appliance adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108524041A CN108524041A (en) | 2018-09-14 |
| CN108524041B true CN108524041B (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810071566.1A Active CN108524041B (en) | 2018-01-25 | 2018-01-25 | Reciprocating rotary mechanism and electric dental care appliance adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108524041B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110522528A (en) * | 2019-08-28 | 2019-12-03 | 珠海迅东科技有限公司 | High-frequency drive mechanism for electric toothbrush |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773819A (en) * | 2004-11-12 | 2006-05-17 | Lpsa产品联合有限公司 | Axial vibration AC motor |
| CN204501066U (en) * | 2015-01-30 | 2015-07-29 | 宁波千百媚电器有限公司 | A kind of electric toothbrush dynamic structure |
| CN105827091A (en) * | 2016-03-16 | 2016-08-03 | 宁波赛嘉电器有限公司 | Motor |
| CN105978287A (en) * | 2016-03-24 | 2016-09-28 | 宁波泽宇工贸实业有限公司 | Vibration brush driving device |
| CN206506429U (en) * | 2016-11-17 | 2017-09-19 | 陈健 | Magnetic suspension acoustic toothbrush motor novel vibrating system |
-
2018
- 2018-01-25 CN CN201810071566.1A patent/CN108524041B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773819A (en) * | 2004-11-12 | 2006-05-17 | Lpsa产品联合有限公司 | Axial vibration AC motor |
| CN204501066U (en) * | 2015-01-30 | 2015-07-29 | 宁波千百媚电器有限公司 | A kind of electric toothbrush dynamic structure |
| CN105827091A (en) * | 2016-03-16 | 2016-08-03 | 宁波赛嘉电器有限公司 | Motor |
| CN105978287A (en) * | 2016-03-24 | 2016-09-28 | 宁波泽宇工贸实业有限公司 | Vibration brush driving device |
| CN206506429U (en) * | 2016-11-17 | 2017-09-19 | 陈健 | Magnetic suspension acoustic toothbrush motor novel vibrating system |
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| Publication number | Publication date |
|---|---|
| CN108524041A (en) | 2018-09-14 |
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Effective date of registration: 20231123 Address after: 315han street, Ningbo Applicant after: NINGBO DONGTE ELECTRONIC APPLIANCES Co.,Ltd. Address before: 315302 South Wenglang Bridge, Shiyan Village, Henghe Town, Cixi City, Ningbo City, Zhejiang Province Applicant before: Xu Juandi |
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