CN201118422Y - Bounce-back efficient vibration electromotor - Google Patents
Bounce-back efficient vibration electromotor Download PDFInfo
- Publication number
- CN201118422Y CN201118422Y CNU2007201781757U CN200720178175U CN201118422Y CN 201118422 Y CN201118422 Y CN 201118422Y CN U2007201781757 U CNU2007201781757 U CN U2007201781757U CN 200720178175 U CN200720178175 U CN 200720178175U CN 201118422 Y CN201118422 Y CN 201118422Y
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- motor
- magnetic
- armature coil
- vibration
- vibrating motor
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- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Disclosed is a high-efficiency recoil vibrating motor, comprising two groups of rectangular plane magnetic steels with the opposite poles facing each other, which form two air gap magnetic fields which are equal in size and opposite in direction. A free vibration generator, composed of an armature coil and a supporting structure, vibrates to-and-fro under the action of alternating current and drives the motor stator and the work load to vibrate under the action of recoil. The vibration frequency is steplessly adjustable within a certain range.
Description
Affiliated technical field
The utility model relates to a kind of vibrating motor, particularly a kind of backpulsing high-efficiency vibration motor.
Background technology
At present, general vibrating motor all is to adopt threephase asynchronous to install the vibration eccentric block additional according to the inertial oscillation principle to combine.Because the exciting force of this motor and eccentric block quality, eccentric arm and motor angular velocity is square proportional, so, motor is in operation and just must adjusts vibration eccentric block quality and eccentric arm simultaneously if will adjust vibration frequency, otherwise exciting force will change.Therefore, the eccentric block data of general vibrating motor so the vibration frequency of vibrating motor also has only several fixed numeric values, can not realize stepless frequency modulation all according to the supporting design of the corresponding vibration frequency of the number of pole-pairs of asynchronous machine according to producing needs.Moreover asynchronous vibration motor is owing to be inertial excitation, and the moment of inertia of eccentric block is very big, and the radial pressure that so just makes motor bearings be in operation to be born is not stable, but impact pressure.In order to make the work of motor long-term stability, the armature spindle of asynchronous vibration motor and bearing all will pass through accurate design and manufacturing, and deadweight is very big, have increased the manufacturing cost of vibrating motor to a great extent.Be subjected to the limitation of asynchronous machine efficient, the efficient of asynchronous vibration motor also has only about 80%.
Summary of the invention
Poor in order to overcome existing vibrating motor frequency adjustment characteristic, efficient is not high but deficiency that manufacturing cost is higher, the utility model provides a kind of backpulsing high-efficiency vibration motor, this vibrating motor is the efficient height not only, low cost of manufacture, and can in the certain frequency scope, realize stepless frequency modulation according to producing needs.
The technical scheme that its technical problem that solves the utility model adopts is: by two groups of relative rectangular plane magnet steel of heteropole form two equal and opposite in directions, direction is opposite and the upper-lower position magnetic field that certain inter-air space is arranged parallel to each other, the yoke that is made of silicon steel laminations constitutes two magnetic field UNICOMs the dc circuit magnetic loop of vibrating motor again.Magnet steel, yoke and motor housing are formed the stator of vibrating motor jointly, also are to be subjected to towards vibrating body simultaneously.The magnetic levitation system on square type armature coil and fixed mount and both sides is formed free oscillator, is equivalent to the rotor of common electric machine.Two effectively long limits of armature coil just are positioned in the middle of the air gap of two backing fields, when armature coil feeds the single-phase alternating current of certain frequency, according to the motor left hand rule, constantly the armature coil of the conversion sense of current just is subjected to a reciprocal magnetic torque consistent with ac frequency, this magnetic torque of constantly changing direction drives armature coil and do free reciprocating motion in magnetic field, forms the single coil excitement of vibrating motor.Because the electromagnetic force of smooth-core armature acts on armature winding and the magnetic pole simultaneously, its equal and opposite in direction, direction is opposite, so, free oscillator is subjected to great active force when moving upward, the vibrating motor stator just is subjected to an onesize active force that moves downward, and this power is the recoil strength of free oscillator to the vibrating motor stator.Because free oscillator is different with the quality of vibrating motor stator, thereby the amplitude of their vibrations is also unequal, but according to the law of conservation of momentum, their momentum equal and opposite in direction is so the exciting force of free oscillator is identical with the exciting force of vibrating motor stator.
Because the backpulsing vibrating motor is to lean on the exciting force of motor stator to drive load vibration work when work, so, armature coil its quality when operation is invariable, and do not have other applied load, and being in the free vibration state all the time, amplitude is relatively large, per second average speed is also bigger, cutting magnetic line is more in magnetic field, and the back-emf of armature coil is just higher, and electromagnetic efficiency is just high.Moreover, form by permanent-magnet steel because of magnetic circuit, there is not excitation loss, armature coil is an air core coil, does not also have the armature iron loss, so whole vibrating motor efficient is higher by about 8% with the power vibrating motor than existing.
The vibration frequency of backpulsing vibrating motor is as changing, the amplitude of free oscillator also correspondingly changes, under the constant situation of power of motor, and the vibration frequency height, the amplitude of free oscillator is little, vibration frequency is low, and the amplitude of free oscillator is big, but the average speed of per second changes not quite, so, in certain frequency range, adjust vibration frequency and need not adjust voltage simultaneously, like this, explain pipe direct-type frequency converter with crystalline substance and just can in the certain frequency scope, adjust vibration frequency.
The beneficial effects of the utility model are, the electric efficiency height, and saves energy can be adjusted vibration frequency easily.The motor overall structure is simple, and from heavy and light, manufacturing cost is lower.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is electric principle of the present utility model and structural representation.
Among the figure 1, armature coil, 2, the armature fixed mount, 3, magnet steel, 4, yoke, 5, magnetic flux, 6, the magnetic suspension track, 7, the suspension magnet steel, 8, motor housing.
Embodiment
In Fig. 1, armature coil (1) is assembled together with armature fixed mount (2) and forms free oscillator, the rectangular plane magnet steel (3) that two groups of heteropoles are relative is formed two equal and opposite in directions, air-gap field that direction is opposite, and the yoke (4) that silicon steel laminations constitutes constitutes two magnetic field UNICOMs the vibrating motor direct current magnetic circuit that comprises magnetic flux (5).Magnet steel (3) and yoke (4) and motor housing (8) are formed the stator of vibrating motor jointly.Two effectively long limits of armature coil (1) just are positioned in the middle of the air gap of two backing fields, when armature coil (1) feeds the single-phase alternating current of certain frequency, according to the motor left hand rule, constantly the armature coil (1) of the conversion sense of current just is subjected to a reciprocal magnetic torque consistent with ac frequency, this magnetic torque drives armature coil (1) and does free reciprocating motion by the suspension magnet steel (7) on the armature fixed mount (2) in magnetic suspension track (6), because of electromagnetic force acts on armature coil (1) and the magnet steel (3) simultaneously, its equal and opposite in direction, direction is opposite, so, free oscillator moves upward, and the vibrating motor stator also is subjected to a recoil active force that moves downward when being subjected to active force, and this recoil active force just drives load vibration work.
Claims (2)
1, a kind of backpulsing high-efficiency vibration motor, it is characterized in that: form two equal and opposite in directions, air-gap field that direction is opposite by two groups of relative rectangular plane magnet steel (3) of heteropole, the yoke (4) that silicon steel laminations constitutes constitutes two magnetic field UNICOMs the vibrating motor magnetic circuit that comprises magnetic flux (5).Magnet steel (3), yoke (4) and motor housing (8) are formed the stator of vibrating motor jointly.Two effectively long limits of armature coil (1) just are positioned in the middle of the air gap of two backing fields, after armature coil (1) feeds alternating current, the magnetic torque that comes and goes drives armature coil in the internal vibration of magnetic suspension track, and drives motor stator and live load vibration by the recoil active force.
2, backpulsing high-efficiency vibration motor according to claim 1, it is characterized in that: the magnetic suspension track is made of two pairs of homopolarity permanent magnet opposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201781757U CN201118422Y (en) | 2007-10-12 | 2007-10-12 | Bounce-back efficient vibration electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201781757U CN201118422Y (en) | 2007-10-12 | 2007-10-12 | Bounce-back efficient vibration electromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118422Y true CN201118422Y (en) | 2008-09-17 |
Family
ID=39993015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201781757U Expired - Fee Related CN201118422Y (en) | 2007-10-12 | 2007-10-12 | Bounce-back efficient vibration electromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118422Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214981A (en) * | 2010-04-01 | 2011-10-12 | 中国煤炭进出口公司 | Vibrating device |
| WO2015078287A1 (en) * | 2013-11-26 | 2015-06-04 | 上海微电子装备有限公司 | Flat voice coil motor |
| CN108539950A (en) * | 2018-04-12 | 2018-09-14 | 苏州波斯特克精密电机有限公司 | A kind of electromagnetism trigger |
-
2007
- 2007-10-12 CN CNU2007201781757U patent/CN201118422Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214981A (en) * | 2010-04-01 | 2011-10-12 | 中国煤炭进出口公司 | Vibrating device |
| CN102214981B (en) * | 2010-04-01 | 2014-04-09 | 中国煤炭进出口公司 | Vibrating device |
| WO2015078287A1 (en) * | 2013-11-26 | 2015-06-04 | 上海微电子装备有限公司 | Flat voice coil motor |
| CN108539950A (en) * | 2018-04-12 | 2018-09-14 | 苏州波斯特克精密电机有限公司 | A kind of electromagnetism trigger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20091112 |