CN201383721Y - Circular flat brushless non-iron core permanent-magnet direct current vibration micro-motor - Google Patents
Circular flat brushless non-iron core permanent-magnet direct current vibration micro-motor Download PDFInfo
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- CN201383721Y CN201383721Y CN200920129969U CN200920129969U CN201383721Y CN 201383721 Y CN201383721 Y CN 201383721Y CN 200920129969 U CN200920129969 U CN 200920129969U CN 200920129969 U CN200920129969 U CN 200920129969U CN 201383721 Y CN201383721 Y CN 201383721Y
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- permanent magnetic
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a circular flat brushless non-iron core permanent-magnet direct current vibration micro-motor applied in electronic products which require the vibration function. The circular flat brushless non-iron core permanent-magnet direct current vibration micro-motor comprises a permanent magnet rotor which consists of a magnet and a jobbing sheet, a field circuit which is composed of a jobbing sheet, an upper shell and a lower shell, and a stator of the motor which is composed of a non-iron core electromagnetic coil, a Hall IC, a positioning block and a lower shell with shaft, wherein the stator supports the rotor to rotate under the effects of the Hall IC and the electromagnetic coil. As a brush and a commutator do not be adopted, the vibration micro-motor has long service life, small volume, and strong vibration, no electric sparkle interference and simple installation and positioning.
Description
Technical field
The utility model relates to electrical micro-machine, especially a kind of round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine.
Background technology
In recent years, circle flat (brush is arranged) coreless permanent magnet DC vibrating electrical micro-machine is little because of volume, efficient is high, be convenient to advantage such as installations generally is used to realize the mobile phone vibrating function in mobile phone industry, owing to the characteristics that its volume is little, efficient is high also are applied to some medical health fields.But this type of motor belongs to brush motor, because of the galvano-cautery between brush and the commutator and mechanical wear cause the useful life of motor shorter.Along with the promotion of the reinforcement of cell phone entertainment function and 3G mobile online game, popularize, a lot of functions all can be with the feedback system of mode of vibration as thoughts and feelings, touch functions such as operation band vibration sense, game keys band vibration sense as the touch-screen point, the life requirements to vibrating motor will extend greatly like this.This type of motor is substituted with brushless electric machine, because there has not been galvano-cautery and mechanical wear between brush and the commutator, electrical machinery life can reach more than 10 times of brush motor.
The utility model content
The brush motor life-span partially short problem of the utility model in order to solve vibration usefulness, a kind of round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine is provided, it adopts brushless structure, has effectively avoided mechanical wear that mechanical commutation produced and spark eroding, prolongs electrical machinery life.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine comprises casing, rotor and stator.Described rotor comprises plate in, is provided with magnet and eccentric hammer on middle plate, and middle plate middle part also is provided with a bearing; Described stator comprises that one is provided with the lower casing of flexible circuit board (FPCB), lower casing middle part be provided with match with bearing axle, the flexible circuit board top is provided with solenoid.
Also be provided with Hall IC on the described flexible circuit board, solenoid and Hall IC circuit UNICOM, and power by Hall IC.
Also be provided with locating piece on the described flexible circuit board, locating piece is the magnetic conductor that attracts mutually with magnet.
Be provided with two locating pieces and two solenoids on the described flexible circuit board altogether, they all be positioned at magnet under.
Described magnet is the Nd-Fe-B rare-earth permanent magnet iron of disc high energy product.
Described eccentric hammer is the high-density alloy semi-ring.The sidepiece of plate during it is connected, promptly eccentric the arrangement.
Described bearing is an oiliness bearing.
In use, be installed in the Hall IC on the stator, change two solenoids that are cascaded of current drives of exporting alternation by the inductiopn rotor magnetic field position, make rotor produce the electromagnetic force that continues rotation, substituted brush motor with contactless electronic commutation and relied on the Mechanical Contact of brush and commutator to commutate; Rotor stopped at the position of energy self-starting when locating piece can guarantee not switch on, and avoided electric motor starting that the problem at dead point is arranged.
The ndfeb magnet of the utility model disc and middle plate constitute the p-m rotor of motor; Middle plate, upper casing, lower casing constitute field circuit; The lower casing of iron-free electromagnetic wire circle, Hall IC, locating piece and tape spool constitutes the stator of motor; The stator support rotor rotates.As everyone knows, it is that the mechanical commutation that relies on brush to contact with commutator changes the sense of current in the motor electromagnetic coil and realizes the continuous running of rotor that the brush direct current machine is arranged, and the commutation of electric current is that the variation that Hall IC is passed through the inductiopn rotor magnetic field position realizes in this patent solenoid, that is so-called electronic commutation, this has been avoided mechanical wear that mechanical commutation produced and spark eroding, so be applicable to the application scenario that requires the long-life and need the inflammable flower to disturb.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further:
Fig. 1 is the three-dimensional explosive view of the utility model preferred embodiment;
Fig. 2 is the sectional structure diagrammatic sketch of the main apparent direction of Fig. 1;
Fig. 3 is the cutaway view after the assembling of the utility model preferred embodiment.
Embodiment
As the basic structure of Fig. 1, Fig. 2 and the utility model preferred embodiment shown in Figure 3, a kind of round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine comprises upper casing, rotor and stator.Described rotor comprises: middle plate 4, be installed in plate 4 bottoms rare-earth permanent magnet 5, be installed in plate 4 avris eccentric hammer 2 and be installed in oiliness bearing 3 in the plate.Described stator comprises: the top be provided with flexible circuit board 9 lower casing 6, be installed in and penetrate the axle 11 that flexible circuit board 9 cooperates with aforementioned oiliness bearing 3 on the lower casing; Hall IC 10, two locating pieces 8 and two solenoids 7 also are installed, Hall IC 10, solenoid 7 and flexible circuit board 9 circuit UNICOMs on flexible circuit board 9.Passing through Hall IC 10 after DC power supply inserts is solenoid 7 power supplies.Aforesaid locating piece 8 is a magnetic conductor, the inactive state of not switching at motor, by with rotor on the self-stable characteristic that attracts each other of magnet 5, guarantee Hall IC 10 be in all the time can actual induction magnetic field, guarantee the self-starting of motor energy, avoid electric motor starting that the problem at dead point is arranged.
As shown in Figure 1, be installed in the Hall IC 10 on the stator, change two solenoids that are cascaded 7 of current drives of exporting alternation by inductiopn rotor magnet 5 magnetic field position, the sense of current in the solenoid 7 is changed along with the variation of rotor field polarity, thereby make rotor when rotating, can produce unidirectional electromagnetic force, guarantee that rotor continues rotation.
Aforementioned only is the utility model preferred embodiment, and all reconfiguration of doing on this principle basis all surely belongs to and falls into protection range of the present utility model.As magnet 5 can be replaced with other material or shape, with the motor profile become other shape such as square, suitably increase/minimizing solenoid 7 or locating piece 8 quantity, use other suitable bearing 3 or hard circuit board 9 or the like instead.
Claims (7)
1, a kind of round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine comprises casing, rotor and stator, it is characterized in that described rotor comprises plate in (4), is provided with magnet (5) and eccentric hammer (2) on middle plate, and middle plate middle part also is provided with a bearing (3); Described stator comprises that one is provided with the lower casing (6) of flexible circuit board (9), lower casing middle part be provided with match with bearing (3) axle (11), be provided with solenoid (7) above the flexible circuit board (9) with its circuit turn-on.
2, round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine as claimed in claim 1 is characterized in that, also is provided with Hall IC (10) on the described flexible circuit board (9), and solenoid (7) is directly powered by Hall IC (10).
3, as claim 1 or 2 or described round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine, it is characterized in that also be provided with locating piece (8) on the described flexible circuit board (9), locating piece (8) is the magnetic conductor that attracts mutually with magnet (5).
4, round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine as claimed in claim 3 is characterized in that, is provided with two locating pieces (8) and two solenoids (7) on the described flexible circuit board (9) altogether, they all be positioned at magnet (5) under.
5, round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine as claimed in claim 4 is characterized in that described magnet (5) is the Nd-Fe-B rare-earth permanent magnet iron of disc high energy product.
6, round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine as claimed in claim 5 is characterized in that described eccentric hammer (2) is the high-density alloy semi-ring, and it is connected the sidepiece of middle plate (4).
7, round flat brushless coreless permanent magnetic DC vibrating electrical micro-machine as claimed in claim 6 is characterized in that described bearing (3) is an oiliness bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920129969U CN201383721Y (en) | 2009-02-23 | 2009-02-23 | Circular flat brushless non-iron core permanent-magnet direct current vibration micro-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920129969U CN201383721Y (en) | 2009-02-23 | 2009-02-23 | Circular flat brushless non-iron core permanent-magnet direct current vibration micro-motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383721Y true CN201383721Y (en) | 2010-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920129969U Expired - Lifetime CN201383721Y (en) | 2009-02-23 | 2009-02-23 | Circular flat brushless non-iron core permanent-magnet direct current vibration micro-motor |
Country Status (1)
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| CN (1) | CN201383721Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406675A (en) * | 2015-12-01 | 2016-03-16 | 浙江省东阳市诚基电机有限公司 | Direct-current brushless motor structure for mobile phone |
| CN105576901A (en) * | 2016-02-25 | 2016-05-11 | 余姚市爱优特电机有限公司 | Mini-sized brushless motor utilizing flexible circuit board |
| CN105790492A (en) * | 2016-04-25 | 2016-07-20 | 歌尔声学股份有限公司 | Inertia exciting motor |
| CN106026471A (en) * | 2016-06-15 | 2016-10-12 | 浙江省东阳市诚基电机有限公司 | Miniature brushless vibration motor structure |
| CN106787277A (en) * | 2017-02-27 | 2017-05-31 | 深圳市道通智能航空技术有限公司 | Motor, head and unmanned plane |
| CN114368486A (en) * | 2021-12-23 | 2022-04-19 | 贵州华烽电器有限公司 | Vibration device |
-
2009
- 2009-02-23 CN CN200920129969U patent/CN201383721Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105406675A (en) * | 2015-12-01 | 2016-03-16 | 浙江省东阳市诚基电机有限公司 | Direct-current brushless motor structure for mobile phone |
| CN105576901A (en) * | 2016-02-25 | 2016-05-11 | 余姚市爱优特电机有限公司 | Mini-sized brushless motor utilizing flexible circuit board |
| CN105790492A (en) * | 2016-04-25 | 2016-07-20 | 歌尔声学股份有限公司 | Inertia exciting motor |
| CN106026471A (en) * | 2016-06-15 | 2016-10-12 | 浙江省东阳市诚基电机有限公司 | Miniature brushless vibration motor structure |
| CN106787277A (en) * | 2017-02-27 | 2017-05-31 | 深圳市道通智能航空技术有限公司 | Motor, head and unmanned plane |
| WO2018152943A1 (en) * | 2017-02-27 | 2018-08-30 | 深圳市道通智能航空技术有限公司 | Motor, cloud platform and unmanned aerial vehicle |
| US10151965B2 (en) | 2017-02-27 | 2018-12-11 | Autel Robotics Co., Ltd. | Motor, gimbal, and unmanned aerial vehicle |
| CN106787277B (en) * | 2017-02-27 | 2020-06-02 | 深圳市道通智能航空技术有限公司 | Motor, cloud platform and unmanned aerial vehicle |
| CN114368486A (en) * | 2021-12-23 | 2022-04-19 | 贵州华烽电器有限公司 | Vibration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100113 |
|
| CX01 | Expiry of patent term |