CN204290516U - Permanent magnetism rotational oscillation motor and electrical equipment - Google Patents
Permanent magnetism rotational oscillation motor and electrical equipment Download PDFInfo
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- CN204290516U CN204290516U CN201420770453.8U CN201420770453U CN204290516U CN 204290516 U CN204290516 U CN 204290516U CN 201420770453 U CN201420770453 U CN 201420770453U CN 204290516 U CN204290516 U CN 204290516U
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- rotational oscillation
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- permanent
- oscillation motor
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Abstract
The utility model provides a kind of permanent magnetism rotational oscillation motor, comprises rotor portion and stationary part; Rotor portion comprises axle, permanent magnet, permanent magnet cover plate, supports front stall, supports back seat and elastic device; Stationary part comprises the first stator core, the first stator coil, First Line ring framework, the second stator core, the second stator coil, the second coil rack and every magnetic patch.First stator core and the second stator core are by separating every magnetic patch.Stationary part is axially symmetric structure.Produce magnetic field when the first stator coil and described second stator coil pass into high-frequency current, thus drive described rotor portion rotary motion, the utility model also relates to a kind of electrical equipment.Permanent magnetism rotational oscillation motor of the present utility model and electrical equipment, structure is simple, and coil is placed on stator, rotor portion is magnet structure, and provide larger air gap flux density, quality is lighter, dynamic response is fast, and providing under equal ampere-turn current conditions, output torque is larger.
Description
Technical field
The utility model relates to vibration motor field, particularly relates to a kind of high frequency permanent magnetism rotational oscillation motor and electrical equipment.
Background technology
Along with the living standard of consumer improves, people to the quality of electric toothbrush and performance requirement more and more higher, and for cost consideration, a lot of product adopts traditional micromachine to add that oscillation ring realizes in the market, its shortcoming is that operating frequency is unstable, vibrating effect is not good, and relies on cell voltage to a great extent.Although some special vibration motors also appear in city head, general structure is comparatively complicated, and consistency is poor, easily occurs dead-beat effect, is not suitable for popularization in enormous quantities.
Chinese patent ZL201320543302.4 discloses a kind of electric toothbrush vibrating motor, and the rotor of this vibrating motor has inductance coil, and four permanent magnets are arranged in the rack bore of both sides respectively, and the output rear end of rotating shaft bar and bonnet are located by spring holder.Changing polarity by changing the square-wave pulse of coil, in coil, producing alternate oscillation magnetic field, N, S pole, make rotor produce the effect of whirling vibration.Said structure Shortcomings be coil on rotor, during machine operation, the vibration of generation can make coil loose, the bad setting of leading-out end, in addition in patent use four permanent magnets, make assemble relative complex.
Utility model content
In view of the present situation of prior art, the purpose of this utility model is to provide a kind of permanent magnetism rotational oscillation motor and electrical equipment, structure is simple, coil is placed on stator, and rotor portion is magnet structure, provides larger air gap flux density, quality is lighter, dynamic response is fast, and providing under equal ampere-turn current conditions, output torque is larger.For achieving the above object, the technical solution of the utility model is as follows:
A kind of permanent magnetism rotational oscillation motor, comprise rotor portion and stationary part, described rotor portion comprises axle, permanent magnet, first permanent magnet cover plate, second permanent magnet cover plate, support front stall, support back seat and elastic device, described permanent magnet is placed between described first permanent magnet cover plate and described second permanent magnet cover plate, described permanent magnet, described first permanent magnet cover plate and described second permanent magnet cover plate form permanent magnet assembly, described axle connects described permanent magnet assembly, described support front stall is placed in the first end of described permanent magnet assembly, described support back seat is placed in the second end of described permanent magnet assembly, described elastic device is placed in the second end of described permanent magnet assembly,
Described stationary part comprises the first stator core, first stator coil, First Line ring framework, second stator core, second stator coil, second coil rack and every magnetic patch, described stationary part is axially symmetric structure, described first stator core, described first stator coil and described First Line ring framework are arranged on the side of the symmetry axis of described stationary part, described second stator core, described second stator coil and described second coil rack are arranged on the opposite side of described symmetry axis, describedly be arranged between described first stator core and described second stator core every magnetic patch, described first stator core and described second stator core are separated every magnetic patch by described,
Produce magnetic field when described first stator coil and described second stator coil pass into square wave current or ac high frequency electric current, with described permanent magnet interaction, thus drive described rotor portion rotary motion.
More preferably, described permanent magnet is placed in the center of described stationary part, and the center line of described axle overlaps with the center line of described stationary part.
More preferably, described permanent magnet is holistic permanent magnet, and its magnetizing direction is vertical with described axle.
More preferably, one end of described axle is placed in the center of described stationary part, and described permanent magnet is placed in all sides of described axle.
More preferably, described permanent magnet comprises the first permanent magnet and the second permanent magnetism, and described first permanent magnet and the second permanent magnet are arranged on the both sides of described axle symmetrically, and described first permanent magnet is all vertical with described axle with the magnetizing direction of described second permanent magnet.
More preferably, described first stator coil and described second stator coil connected in series or in parallel, and described first stator coil is consistent with the magnetic line of force direction that described second stator coil produces.
More preferably, described permanent magnetism rotational oscillation motor also comprises the casing for holding described stationary part and rotor portion, and the front end of described casing is provided with front end housing, and the rear end of described casing is provided with rear end cap;
Described elastic device comprises flexible member, the first fixture and the second fixture, the first end of described flexible member connects described first fixture, second end of described flexible member connects described second fixture, wherein, described first fixture is arranged in described rear end cap, and described second fixture is arranged in described support back seat.
More preferably, described first permanent magnet cover plate and described second permanent magnet cover plate are made by permeability magnetic material, and described first stator core and described second stator core are U-shaped and are made up of permeability magnetic material, are describedly made up of non-magnet_conductible material every magnetic patch; Described flexible member is spring steel wire or torsionspring.
More preferably, the frequency of described square wave current or described ac high frequency electric current equals or close to the resonance frequency of described rotor portion.
Also relate to a kind of electrical equipment, comprise permanent magnetism rotational oscillation motor, permanent magnetism rotational oscillation motor is the described permanent magnetism rotational oscillation motor of above-mentioned arbitrary technical scheme.
The beneficial effects of the utility model are:
Permanent magnetism rotational oscillation motor of the present utility model and electrical equipment, structure is simple, and coil is placed on stator, rotor portion is magnet structure, and provide larger air gap flux density, quality is lighter, dynamic response is fast, and providing under equal ampere-turn current conditions, output torque is larger.Rotor center is concentric with axle, and motor runs more reliable.Permanent magnet adopts an overall permanent magnet or two panels permanent magnet, and assembling easily, improves the reliability of permanent magnetism rotational oscillation motor further.
Accompanying drawing explanation
Fig. 1 is the explosive view of permanent magnetism rotational oscillation motor embodiment one of the present utility model;
Fig. 2 is the profile of the rotational oscillation of permanent magnetism shown in Fig. 1 motor;
Fig. 3 is the stator core segment axial section of the rotational oscillation of permanent magnetism shown in Fig. 1 motor;
Fig. 4 is permanent magnetism rotational oscillation motor embodiment two rotor portion explosive view of the present utility model
Fig. 5 is the rotor portion axial cross-sectional views of the stator core segment of the rotational oscillation of permanent magnetism shown in Fig. 4 motor.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, permanent magnetism rotational oscillation motor of the present utility model and electrical equipment are further elaborated.Should be appreciated that specific embodiment described herein only for explaining the utility model, and be not used in restriction the utility model.
See figures.1.and.2, the permanent magnetism rotational oscillation motor of the utility model one embodiment comprises rotor portion, stationary part and the casing 6 for holding stationary part and rotor portion, the front end of casing 6 is provided with front end housing 91, and the rear end of casing 6 is provided with rear end cap 92.
Rotor portion comprises axle 7, permanent magnet 1, first permanent magnet cover plate 41, second permanent magnet cover plate 42, supports front stall 201, supports back seat 202 and elastic device.Wherein, first permanent magnet cover plate 41 and the second permanent magnet cover plate 42 are made by permeability magnetic material, permanent magnet 1 is placed between the first permanent magnet cover plate 41 and the second permanent magnet cover plate 42, permanent magnet 1, first permanent magnet cover plate 41 and the second permanent magnet cover plate 42 form permanent magnet assembly, axle 7 connects described permanent magnet assembly, support the first end (figure is left end) that front stall 201 is placed in described permanent magnet assembly, support the second end (figure is right-hand member) that back seat 202 is placed in described permanent magnet assembly, described elastic device is placed in second end (figure is right-hand member) of described permanent magnet assembly.
The left end of Fig. 2 axis 7 is placed between the first permanent magnet cover plate 41 and the second permanent magnet cover plate 42, and axle 7 and permanent magnet 1 are secured together by the first permanent magnet cover plate 41 and the second permanent magnet cover plate 42.Support the first end (Fig. 1 is left end) that front stall 201 is placed in the first permanent magnet cover plate 41 and the second permanent magnet cover plate 42, support the second end (Fig. 1 is right-hand member) that back seat 202 is placed in the first permanent magnet cover plate 41 and the second permanent magnet cover plate 42.Elastic device is also placed in the second end of the first permanent magnet cover plate 41 and the second permanent magnet cover plate 42, elastic device comprises flexible member 301, first fixture 302 and the second fixture 303, the first end (in figure right-hand member) of flexible member 301 connects the first fixture 302, second end (in figure left end) of flexible member 301 connects the second fixture 303, wherein, flexible member 301 is spring steel wire or torsionspring.First fixture 302 is arranged in rear end cap 92, and the second fixture 303 is arranged on and supports in back seat 202.Preferably, the second fixture is also set with rear bearing 82, axle 7 is also set with fore bearing 81, fore bearing 81 is arranged in front end housing 91.
Stationary part comprises the first stator core 21, first stator coil 31, First Line ring framework 101, second stator core 22, second stator coil 32, second coil rack 102 and every magnetic patch 5.Described stationary part is axially symmetric structure, first stator core 21, first stator coil 31 and First Line ring framework 101 are arranged on the side of the symmetry axis of described stationary part, and the second stator core 22, second stator coil 32 and the second coil rack 102 are arranged on the opposite side of described symmetry axis.Be arranged between the first stator core 21 and the second stator core 22 every magnetic patch 5, the first stator core 21 and the second stator core 22 are by separating every magnetic patch 5.First stator core 21 and the second stator core 22 are U-shaped and are made up of permeability magnetic material, are made up of non-magnet_conductible material every magnetic patch 5.
Produce magnetic field when the first stator coil 31 and the second stator coil 32 pass into square wave current or ac high frequency electric current, interact with permanent magnet 1, thus drive described rotor portion rotary motion.Preferably, the first stator coil 31 and the second stator coil 32 connected in series or in parallel, and the first stator coil 31 is consistent with the magnetic line of force direction that the second stator coil 32 produces.The frequency of described square wave current or described ac high frequency electric current equals or close to the resonance frequency of described rotor portion.Close to the resonance frequency of described rotor portion, the frequency of described ac high frequency electric current refers to that both frequency departures are less than 10%.
As a kind of embodiment, as shown in Figures 2 and 3, permanent magnet 1 is placed in the center of described stationary part, and the center line of axle 7 overlaps with the center line of described stationary part, namely permanent magnet 1 and axle 7 are at same straight line, and Fig. 2 axis 7 is placed in the left side of permanent magnet 1.Wherein, in permanent magnet 1 axial length range, in the vertical direction, the side (being upside in figure) of permanent magnet 1 is by motor being the first permanent magnet cover plate 41, first stator coil 31, First Line ring framework 101, first stator core 21 and casing 6 outside motor successively; The opposite side (being downside in figure) of permanent magnet 1 is by being followed successively by the second coil rack 102, second stator core 22 of permanent magnet cover plate 42, second stator coil 32, second and casing 6 in motor outside motor; With axle center for starting point, in the horizontal direction, by being permanent magnet 1 successively outside motor in motor, every magnetic patch 5 and casing 6.
Permanent magnet 1 is holistic permanent magnet, and its magnetizing direction is vertical with axle 7, and the upper end of permanent magnet 1 is N pole, and the lower end of permanent magnet 1 is S pole; Or the upper end of permanent magnet 1 is S pole, the lower end of permanent magnet 1 is N pole.
As another kind of embodiment, as shown in Figure 4 and Figure 5, one end of axle 7 is placed in the center of described stationary part, and permanent magnet 1 is placed in all sides of axle 7.Preferably, permanent magnet 1 comprises the both sides that the first permanent magnet 11 and the second permanent magnetism 12, first permanent magnet 11 and the second permanent magnet 12 are arranged on axle 7 symmetrically, and the stationary part of this kind of execution mode is identical with the stationary part of above-mentioned execution mode.With axle center for starting point, the side (being upside in figure) of axle 7, in vertical direction, by motor being the first permanent magnet cover plate 41, first stator coil 31, First Line ring framework 101, first stator core 21 and casing 6 outside motor successively; The opposite side of axle 7 (being downside in figure) is by being outwards the second coil rack 102, second stator core 22 of permanent magnet cover plate 42, second stator coil 32, second and casing 6 successively in motor; In the horizontal direction, the side (being left side in figure) of axle 7, by be outwards the first permanent magnet 11 successively in motor, every magnetic patch 5 and casing 6, the opposite side (being right side in figure) of axle 7 by be outwards the second permanent magnet 12 successively in motor, every magnetic patch 5 and casing 6.
First permanent magnet 11 is all vertical with axle 7 with the magnetizing direction of the second permanent magnet 12, first permanent magnet 11 is identical with the magnetizing direction of the second permanent magnet 12, wherein, the upper end of the first permanent magnet 11 and the second permanent magnet 12 is N pole, and the lower end of the first permanent magnet 11 and the second permanent magnet 12 is S pole; Or the upper end of the first permanent magnet 11 and the second permanent magnet 12 is S pole, the lower end of the first permanent magnet 11 and the second permanent magnet 12 is N pole.
The utility model also relates to a kind of electrical equipment, comprises permanent magnetism rotational oscillation motor, and permanent magnetism rotational oscillation motor is the described permanent magnetism rotational oscillation motor of above-mentioned arbitrary technical scheme.The permanent magnetism rotational oscillation motor of above embodiment is used on electrical equipment, wherein electrical equipment can be electric toothbrush, shaver, loud speaker, electric hammer machine, mixer, refrigerator, sewing machine, bag binding machine, electromagnetic pump etc., because above electrical equipment is prior art except permanent magnetism rotational oscillation motor, repeat no longer one by one herein.
The permanent magnetism rotational oscillation motor of above embodiment and electrical equipment, permanent magnetism rotational oscillation motor, structure is simple, and coil is placed on stator, and rotor portion is magnet structure, provides larger air gap flux density, and quality is lighter, and dynamic response is fast; Thering is provided under equal ampere-turn current conditions, be 2-4 times of the power output of existing permanent magnetism vibration motor in the market, output torque is larger.Rotor center is concentric with axle, and motor runs more reliable.Permanent magnet adopts an overall permanent magnet or two panels permanent magnet, and assembling easily, is enhanced productivity, reduced costs, and improves the reliability of permanent magnetism rotational oscillation motor further.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a permanent magnetism rotational oscillation motor, comprises rotor portion and stationary part, it is characterized in that:
Described rotor portion comprises axle, permanent magnet, first permanent magnet cover plate, second permanent magnet cover plate, support front stall, support back seat and elastic device, described permanent magnet is placed between described first permanent magnet cover plate and described second permanent magnet cover plate, described permanent magnet, described first permanent magnet cover plate and described second permanent magnet cover plate form permanent magnet assembly, described axle connects described permanent magnet assembly, described support front stall is placed in the first end of described permanent magnet assembly, described support back seat is placed in the second end of described permanent magnet assembly, described elastic device is placed in the second end of described permanent magnet assembly,
Described stationary part comprises the first stator core, first stator coil, First Line ring framework, second stator core, second stator coil, second coil rack and every magnetic patch, described stationary part is axially symmetric structure, described first stator core, described first stator coil and described First Line ring framework are arranged on the side of the symmetry axis of described stationary part, described second stator core, described second stator coil and described second coil rack are arranged on the opposite side of described symmetry axis, describedly be arranged between described first stator core and described second stator core every magnetic patch, described first stator core and described second stator core are separated every magnetic patch by described,
Produce magnetic field when described first stator coil and described second stator coil pass into square wave current or ac high frequency electric current, with described permanent magnet interaction, thus drive described rotor portion rotary motion.
2. permanent magnetism rotational oscillation motor according to claim 1, is characterized in that:
Described permanent magnet is placed in the center of described stationary part, and the center line of described axle overlaps with the center line of described stationary part.
3. permanent magnetism rotational oscillation motor according to claim 2, is characterized in that:
Described permanent magnet is holistic permanent magnet, and its magnetizing direction is vertical with described axle.
4. permanent magnetism rotational oscillation motor according to claim 1, is characterized in that:
One end of described axle is placed in the center of described stationary part, and described permanent magnet is placed in all sides of described axle.
5. permanent magnetism rotational oscillation motor according to claim 4, is characterized in that:
Described permanent magnet comprises the first permanent magnet and the second permanent magnetism, and described first permanent magnet and the second permanent magnet are arranged on the both sides of described axle symmetrically, and described first permanent magnet is all vertical with described axle with the magnetizing direction of described second permanent magnet.
6. the permanent magnetism rotational oscillation motor according to any one of claim 1-5, is characterized in that:
Described first stator coil and described second stator coil connected in series or in parallel, and described first stator coil is consistent with the magnetic line of force direction that described second stator coil produces.
7. the permanent magnetism rotational oscillation motor according to any one of claim 1-5, is characterized in that:
Also comprise the casing for holding described stationary part and rotor portion, the front end of described casing is provided with front end housing, and the rear end of described casing is provided with rear end cap;
Described elastic device comprises flexible member, the first fixture and the second fixture, the first end of described flexible member connects described first fixture, second end of described flexible member connects described second fixture, wherein, described first fixture is arranged in described rear end cap, and described second fixture is arranged in described support back seat.
8. the permanent magnetism rotational oscillation motor according to any one of claim 1-5, is characterized in that:
Described first permanent magnet cover plate and described second permanent magnet cover plate are made by permeability magnetic material, and described first stator core and described second stator core are U-shaped and are made up of permeability magnetic material, are describedly made up of non-magnet_conductible material every magnetic patch; Described flexible member is spring steel wire or torsionspring.
9. the permanent magnetism rotational oscillation motor according to any one of claim 1-5, is characterized in that:
The frequency of described square wave current or described ac high frequency electric current equals or close to the resonance frequency of described rotor portion.
10. an electrical equipment, comprises permanent magnetism rotational oscillation motor, it is characterized in that:
Described permanent magnetism rotational oscillation motor is the permanent magnetism rotational oscillation motor described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420770453.8U CN204290516U (en) | 2014-12-09 | 2014-12-09 | Permanent magnetism rotational oscillation motor and electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420770453.8U CN204290516U (en) | 2014-12-09 | 2014-12-09 | Permanent magnetism rotational oscillation motor and electrical equipment |
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| Publication Number | Publication Date |
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| CN204290516U true CN204290516U (en) | 2015-04-22 |
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| CN201420770453.8U Active CN204290516U (en) | 2014-12-09 | 2014-12-09 | Permanent magnetism rotational oscillation motor and electrical equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743234A (en) * | 2014-12-09 | 2016-07-06 | 中国科学院宁波材料技术与工程研究所 | Permanent-magnet rotating oscillation motor and electric equipment |
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2014
- 2014-12-09 CN CN201420770453.8U patent/CN204290516U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743234A (en) * | 2014-12-09 | 2016-07-06 | 中国科学院宁波材料技术与工程研究所 | Permanent-magnet rotating oscillation motor and electric equipment |
| CN105743234B (en) * | 2014-12-09 | 2019-03-26 | 中国科学院宁波材料技术与工程研究所 | Permanent magnetism rotational oscillation motor and electrical equipment |
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Legal Events
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315201, 519, Zhenhai Avenue, Ningbo, Zhejiang Co-patentee after: Ningbo Saijia electromechanical Co., Ltd Patentee after: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCES Address before: 315201, 519, Zhenhai Avenue, Ningbo, Zhejiang Co-patentee before: NINGBO SAIJIA MOTOR Co.,Ltd. Patentee before: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCES |
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| CP01 | Change in the name or title of a patent holder |