CN203674820U - Direct-current brushless micromotor - Google Patents
Direct-current brushless micromotor Download PDFInfo
- Publication number
- CN203674820U CN203674820U CN201420045922.XU CN201420045922U CN203674820U CN 203674820 U CN203674820 U CN 203674820U CN 201420045922 U CN201420045922 U CN 201420045922U CN 203674820 U CN203674820 U CN 203674820U
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- Prior art keywords
- stator
- pole piece
- core
- pole
- brush
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000004804 winding Methods 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 23
- 239000002966 varnish Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 210000000078 claw Anatomy 0.000 abstract description 4
- 239000000696 magnetic material Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
In order to solve a problem that the existing direct-current brushless motor can not be miniaturized to form a micromotor, the utility model provides a direct-current brushless micromotor. A motor stator iron core is a mouse cage-shaped iron core that is encircled by embedding of claw pole-shaped pole pieces that are processed by magnetic materials; the surfaces of the first pole piece, the second pole piece, the third pole piece and the fourth pole piece are coated with insulating paints; and a stator winding is a single coil. According to the scheme, because the mouse cage-shaped iron core that is encircled by embedding of the claw pole-shaped first, second, third, and fourth pole pieces are used, the size of the motor is reduced and the length of the motor can be extended, thereby improving the output force of the motor.
Description
Technical field
The utility model relates to DC brushless motor, and particularly a kind of stator adopts magnetic conductive metal materials processing to become the direct current claw-pole brushless electrical micro-machine of the pawl utmost point.
Background technology
At present, general brush motor switches the electric current of input coil conventionally by the mechanical system of commutator and brush, this brush motor switches the electric current of input coil conventionally by the mechanical system of commutator and brush, the rotating speed of this brush motor is relatively easily controlled, but, the mechanical break-in of brush and commutator tends to accelerate the loss of electric machine, and easily sends noise.Brshless DC motor is a kind of direct current machine that adopts electron rectifier to replace brush and commutator, it possesses the series of advantages such as simple in structure, reliable, easy to maintenance of alternating current machine, and the operational efficiency that possesses again direct current machine is simultaneously high, without excitation loss and good speed adjustment features or to avoid the various features such as generation of mechanicalness noise simultaneously.Therefore, brshless DC motor is widely used in the every field including household electrical appliance.Conventional brshless DC motor mainly includes stator and rotor.Stator mainly comprises electronics iron core cylindraceous, the stator winding that high strength enamelled wire turns to, and for the insulator of insolated stator core and stator winding.Rotor is permanent magnet cylindraceous, is placed in the middle of stator and is separated by with its space of stator.Stator winding and external power source on stator join, and in the time that external power source is connected, the electric current on stator winding produces magnetic field and attracts each other and mutually repel with the magnetic field in rotor permanent magnet, drives rotor to rotate in stator thereby produce electromagnetic torque.Such brshless DC motor is of wide application in compressor in general household appliances, washing machine, electric fan etc. and can applies, if but need to produce electrical micro-machine, but due to this structure of stator, can not reduce the volume of motor, be not suitable for electrical micro-machine.
Utility model content
The purpose of this utility model is to provide a kind of brush DC electrical micro-machine.
The technical scheme that the utility model adopts is: a kind of brush DC electrical micro-machine, comprises stator, rotor, controller;
Described stator comprises the stator core with internal cavities, surrounds the stator winding on stator core;
Described rotor comprises the annular magnetite being arranged in described core interior cavity, axle core in the middle of the annular magnetite described in being arranged on and described annular magnetite interlock;
Described controller provides driven by power and the control of this brushless DC micromotor;
Wherein: described stator core is the chimeric mouse cage shape iron core surrounding of the first pole piece, the second pole piece, the 3rd pole piece and the 4th pole piece bulk-breaking of the pawl utmost point shape that is processed into by magnetic conductive material; At the first pole piece, the second pole piece, the 3rd pole piece and the 4th pole piece surface coating insulating varnish of described pawl utmost point shape; Described stator winding is single coil.
Further, in above-mentioned brush DC electrical micro-machine: the first pole piece, the second pole piece, the 3rd pole piece and the 4th pole piece two ends of described pawl utmost point shape are fixed by the first stator, the second stator, the 3rd stator and the 4th stator respectively;
The first described stator and the 3rd stator are by two of left and right semicircular ring chimeric forming mutually;
The second described pole piece and the stub end of the 3rd pole piece are fixed with two of the left and right semicircular ring of described the first stator respectively, and the first described pole piece and the stub end of the 4th pole piece are fixed with two of the left and right semicircular ring of described the 3rd stator respectively;
Little head end at the first described pole piece, the second pole piece, the 3rd pole piece and the 4th pole piece is provided with embeded slot, on the first described stator and the 3rd stator, is provided with the projection chimeric with embeded slot;
The second described stator and the 4th stator are annular, divide and are separately entrenched on described the first stator and the 3rd stator.
Further, in the brush DC electrical micro-machine on: described rotor comprises described annular magnetite and described axle core are carried out to the fixture that the heart is adjusted; Described fixture is pressed into after with plastics processing after described axle core in advance, then luggage enter in described annular magnetite endoporus, carry out heart adjustment fixing afterwards.
Further, in the brush DC electrical micro-machine on: described fixture periphery is provided with the upwards card rib of dimpling.
The chimeric mouse cage shape iron core surrounding of the first pole piece, the second pole piece, the 3rd pole piece and the 4th pole piece bulk-breaking that adopts shape in the utility model, when making motor volume little, can extend motor length, with the power output of lifting motor.
Below in conjunction with specific embodiment, the utility model is described in more detail.
Accompanying drawing explanation
Accompanying drawing 1 is the cutaway view of the DC brushless motor of the utility model embodiment 1.
Accompanying drawing 2 is core structure figure of the present utility model.
Accompanying drawing 3 is the utility model stator core exploded views.
Accompanying drawing 4 is the utility model rotor structure figures.
Accompanying drawing 5 is the stator structure charts in the utility model rotor.
Accompanying drawing 6 is D views of Fig. 5.
In figure: 1, axle core, 2, fore bearing, 3, the first pole piece, 4, casing, 5, winding, 6, the second pole piece, 7, the first stator, 8, the second stator, 9, electric capacity, 10, pedestal, 11, end cap, 12, rear bearing, 13, circuit board, 14, main driving chip, 15, the 3rd pole piece, 16, fixture, 17, annular magnetite, 18, the 3rd stator, 19, the 4th pole piece, 20, the 4th stator, 24, fin.
Embodiment
The present embodiment is a kind of brush DC electrical micro-machine, as shown in Figure 1, mainly formed by stator, rotor and three parts of controller, wherein: stator comprises the stator core with internal cavities, surround the stator winding 5 on stator core, as shown in Figure 2, the structure of stator core is one of main feature of the present utility model, in the present embodiment, stator core is the first pole piece 3, the second pole piece 6, the 3rd pole piece 15 and the chimeric mouse cage shape iron core surrounding of the 4th pole piece 19 bulk-breakings of the pawl utmost point shape that is processed into by magnetic conductive material; The pole piece of four pawl utmost point shapes is fixing by the first stator 7, the second stator 8, the 3rd stator 18 and the 4th stator 20 respectively, and wherein, the first stator 7 and the 3rd stator 18 are by two of left and right semicircular ring chimeric forming mutually; The stub end of the second pole piece 6 and the 3rd pole piece 15 is fixed with two of the left and right semicircular ring of the first stator 7 respectively, and the stub end of the first pole piece 3 and the 4th pole piece 19 is fixed with two of the left and right semicircular ring of the 3rd stator 18 respectively; Little head end at the first pole piece 3, the second pole piece 6, the 3rd pole piece 15 and the 4th pole piece 19 is provided with embeded slot, on the first stator 7 and the 3rd stator 18, is provided with the projection chimeric with embeded slot; When the first pole piece 3 in two of the left and right semicircular ring that is fixed to the 3rd stator 18 and the 4th pole piece 19 be fixed in the first two of 7 left and right of stator semicircular ring the second pole piece 6 and the 3rd pole piece 15 and report to the leadship after accomplishing a task mutually while closing up as shown in Figure 3 as two palmistrys, form the space of content, because global shape is similar to mouse cage, therefore, be widely known as mouse cage shape iron core.
The surface coating insulating varnish of the mouse cage shape iron core forming at the first pole piece 3, the second pole piece 6, the 3rd pole piece 15 and the 4th pole piece 19 of pawl utmost point shape; Four pole piece surfaces of the present embodiment median claw utmost point (Claw Pole) form are all-round with insulating varnish application, can increase the magnetic coupling between coil (Coil) winding 5 and pawl utmost point Claw Pole form pole piece.
The present embodiment stator winding 5 is single coil.
In the present embodiment, stator winding 5 adopts at single coil 5, under cooperation by parts such as four pole pieces to the pawl utmost point (claw pole) form, can make stator generation magnetic pole alternately carry out to produce with rotor magnetic pole the effect of magnetic or repulsion, to produce the kinetic energy of electric machine rotation, the present embodiment is using under the structure of single coil, and volume production will more be described easily simple, promote yields.
In the present embodiment, at rotor as shown in Figure 4, mainly formed by annular magnetite 17 and axle core 1 two parts, annular magnetite 17 is ndfeb magnet, be arranged in core interior cavity, axle core 1 is arranged in the middle of annular magnetite 17, and axle core 1 and annular magnetite 17 interlocks, axle core 1 and annular magnetite 17 center superpositions.In order to guarantee axle core 1 and annular magnetite 17 center superpositions, designed in the present embodiment to carry out the fixture 16 to heart adjustment; Fixture 16 is to be pressed in advance after plastics processing after described axle core 1, then luggage enters in annular magnetite 17 endoporus to carry out heart adjustment to fix afterwards.Fixture 16 peripheries are provided with the upwards card rib 24 of dimpling, as shown in Figure 5 and Figure 6.In the present embodiment, rotor has used fixture 16, it can guarantee between annular magnetite 17, axle core 1 with one heart, vibration, noise that electric machine rotation is produced are improved.
In the present embodiment, after stator and rotor set install, be installed in casing 4, the interior support 10 that an installation stator is set of casing 4, then, axle core 1 stretches out respectively the output shaft of casing 4 these DC brushless motors of formation by fore bearing 2 and rear bearing 12 from casing front and back end, be provided with end cap 11 at casing 4 rear sides, controller is mounted on pedestal, and controller mainly main driving chip (drive IC) 14, flexible circuit board (PFC) 13 and electric capacity 9 forms.The controller passing through is controlled the electric current that joins stator winding 5, and controller adopts the detection of HALL transducer to join the electric current on stator winding as the changes of magnetic field control of the annular magnetite 17 of rotor.
Stator core, winding 5 coils that in the present embodiment, stator is made up of four pawl utmost point metalwork pole pieces, four stators form, adding top base 11, flexible circuit board 13, main driving chip 14, electric capacity 9 assembles, wherein four pawl utmost point metalwork pole pieces are with the circumference configuration that equidistantly distributes with one heart, and and the mutual chimeric shaping of stator; Pawl utmost point metalwork pole piece external coating insulating varnish is in order to increase the magnetic coupling between coil and pawl utmost point sheet metal; Flexible circuit board 13, drive IC namely main driving chip 14, electric capacity 9 with the link of coil Coil and pawl utmost point metalwork pole plate under, in order to produce reversal function (N, S, N, the S of magnetic pole of the stator .... continue conversion).
The utility model rotor is made up of fixture 16, annular magnetite 17, axle core 1, and wherein fixture 16 to be to be pressed in advance after plastics processing after axle core 1, then luggage enter in ring-like magnetite 17 endoporus, carry out accurate to heart adjustment; Re-use afterwards solid and follow the gap between stationary annular magnetite 17 and fixture 16, so operation is to guarantee motor characteristics and dynamic equilibrium.
In the present embodiment, control circuit board adopts flexible circuit board FPC, because drive IC connecting pin is positioned at tossing about of resin-encapsulated, is carrying out, after post-chip SMT assembly welding, can't see solder joint.Adopt such FPC can allow circuit board bending be looped around stator base.
Claims (4)
1. a brush DC electrical micro-machine, comprises stator, rotor, controller;
Described stator comprises the stator core with internal cavities, surrounds the stator winding (5) on stator core;
Described rotor comprises the annular magnetite (17) being arranged in described core interior cavity, axle core (1) in the middle of the annular magnetite (17) described in being arranged on and described annular magnetite (17) interlock;
Described controller provides driven by power and the control of this brushless DC micromotor;
It is characterized in that: described stator core is the first pole piece (3), the second pole piece (6), the 3rd pole piece (15) and the chimeric mouse cage shape iron core surrounding of the 4th pole piece (19) bulk-breaking of the pawl utmost point shape that is processed into by magnetic conductive material; At the first pole piece (3), the second pole piece (6), the 3rd pole piece (15) and the 4th pole piece (19) the surface coating insulating varnish of described pawl utmost point shape; Described stator winding (5) is single coil.
2. brush DC electrical micro-machine according to claim 1, is characterized in that: the first pole piece (3), the second pole piece (6), the 3rd pole piece (15) and the 4th pole piece (19) two ends of described pawl utmost point shape are fixing by the first stator (7), the second stator (8), the 3rd stator (18) and the 4th stator (20) respectively;
Described the first stator (7) and the 3rd stator (18) are by two of left and right semicircular ring chimeric forming mutually;
Described the second pole piece (6) and the stub end of the 3rd pole piece (15) are fixed with two of the left and right semicircular ring of described the first stator (7) respectively, and described the first pole piece (3) and the stub end of the 4th pole piece (19) are fixed with two of the left and right semicircular ring of described the 3rd stator (18) respectively;
Little head end at described the first pole piece (3), the second pole piece (6), the 3rd pole piece (15) and the 4th pole piece (19) is provided with embeded slot, on described the first stator (7) and the 3rd stator (18), is provided with the projection chimeric with embeded slot;
Described the second stator (8) and the 4th stator (20) are annular, divide and are separately entrenched on described the first stator (7) and the 3rd stator (18).
3. brush DC electrical micro-machine according to claim 1 and 2, is characterized in that: described rotor comprises described annular magnetite (17) and described axle core (1) are carried out to the fixture (16) that the heart is adjusted; Described fixture (16) is to be pressed in advance after plastics processing after described axle core (1), then luggage enters in described annular magnetite (17) endoporus to carry out heart adjustment to fix afterwards.
4. brush DC electrical micro-machine according to claim 3, is characterized in that: described fixture (16) periphery is provided with the upwards card rib (24) of dimpling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045922.XU CN203674820U (en) | 2014-01-24 | 2014-01-24 | Direct-current brushless micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045922.XU CN203674820U (en) | 2014-01-24 | 2014-01-24 | Direct-current brushless micromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674820U true CN203674820U (en) | 2014-06-25 |
Family
ID=50971071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420045922.XU Expired - Lifetime CN203674820U (en) | 2014-01-24 | 2014-01-24 | Direct-current brushless micromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779981A (en) * | 2014-01-24 | 2014-05-07 | 深圳市正德精密技术有限公司 | Brushless direct-current micromotor |
| CN117081281A (en) * | 2023-10-13 | 2023-11-17 | 广东敏卓机电股份有限公司 | Claw pole type permanent magnet motor |
-
2014
- 2014-01-24 CN CN201420045922.XU patent/CN203674820U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779981A (en) * | 2014-01-24 | 2014-05-07 | 深圳市正德精密技术有限公司 | Brushless direct-current micromotor |
| CN103779981B (en) * | 2014-01-24 | 2015-11-18 | 深圳市正德精密技术有限公司 | A kind of brush DC electrical micro-machine |
| CN117081281A (en) * | 2023-10-13 | 2023-11-17 | 广东敏卓机电股份有限公司 | Claw pole type permanent magnet motor |
| CN117081281B (en) * | 2023-10-13 | 2023-12-29 | 广东敏卓机电股份有限公司 | Claw pole type permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Longgang District of Shenzhen City, Guangdong province 518117 Ping Street No. 8, Zhengde Kang Ming Lu Technology Park Patentee after: SHENZHEN MAINTEX INTELLIGENT-CONTROL Co.,Ltd. Address before: Two road in Longgang District of Shenzhen City, Guangdong province 518000 Ping Street No. 5 Building 4 Xinfeng Nianfeng community Patentee before: SHENZHEN ZHENGDE PRECISION TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |