CN203466706U - Single-phase brushless motor - Google Patents
Single-phase brushless motor Download PDFInfo
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- CN203466706U CN203466706U CN201320441275.XU CN201320441275U CN203466706U CN 203466706 U CN203466706 U CN 203466706U CN 201320441275 U CN201320441275 U CN 201320441275U CN 203466706 U CN203466706 U CN 203466706U
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Abstract
The utility model relates to a single-phase brushless motor, which comprises a stator, a wire-winding insulating framework, a rotor, a circuit board and a motor shell, wherein the circuit board adopts an open loop control winding, the wire-winding insulating framework is installed on the stator, and the circuit board is provided with a positioning hole sleeved ion the wire-winding insulating framework; the stator adopts splicing punching pieces, and is spliced by a plurality of stator teeth rather than manufactured into an integrity; and the stator teeth and a stator yoke are respectively provided with tenons and mortises through which the stator piece inner punching pieces and the stator piece outer punching pieces can be spliced with each other, and each stator piece inner punching piece is provided with a stator piece inner groove and a stator piece inwall. The single-phase brushless motor improves the utilization rate of stator core materials, improves tank full rate, and realizes high-speed wire winding of the plurality of stator teeth simultaneously.
Description
Technical field
The utility model relates to brushless electric machine, particularly relates to a kind of single-phase DC brushless motor.
Background technology
Household appliances, as the compressor in refrigerating system, washing machine, electric fan etc., are used motor to provide power drive for it conventionally.General 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 makes a 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, the operational efficiency that possesses again direct current machine is simultaneously high, without excitation loss and good speed adjustment features, can avoid the generation of mechanicalness noise and the various features such as generation of electric noise simultaneously.Therefore, brshless DC motor is widely used in the every field that comprises household electrical appliance.Conventional brshless DC motor mainly includes stator and rotor.Stator mainly comprises stator core cylindraceous, the stator winding that high strength enamelled wire is coiled into, and for the insulator of insolated stator core and stator winding.Rotor is columned permanent magnet, and it is placed in the centre of stator and is separated by with its space.Stator winding on stator is connected with external power source, and when 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 on rotor permanent-magnet steel, thereby produce electromagnetic torque, drives rotor to rotate in stator.
In current brushless electric machine, stator is monolithic construction, the copper factor of stator is low, and copper factor refers to that enameled wire loop puts into the ratio that accounts for slot space after groove, is exactly the ratio that enamelled wire sectional area accounts for effective area in groove, because stator is integral type, stator slot is young, is subject to the restriction around wire insertion technology, and the copper factor of stator is low, stator is low around rule efficiency simultaneously, can only carry out around rule by groove one groove.
The inner general closed control circuit that adopts Hall commutation of DC brushless motor, stator adopts asynchronous machine stator around rule structure, causes the structural redundancy of stator built-in line, and Hall is installed difficulty, and stability is unreliable.The end spans of rule stator is long and high, even far super active component, and stock utilization is very low, and cost is high, and because the copper loss at idle position causes the efficiency of motor low.
Summary of the invention
The purpose of this utility model has overcome the deficiencies in the prior art exactly.A brushless single phase motor, comprises stator, coiling insulation framework, rotor, wiring board, casing, and wiring board adopts open loop to control winding, and coiling insulation framework is installed on stator, has location hole to be enclosed within coiling insulation framework on wiring board.Coiling insulation framework cross section is hollow " work " font, has the installing hole running through up and down.
Stator is spliced into annular by a plurality of stator tooths and stator yoke, and coiling insulation framework is wound with enamelled wire and is enclosed within on stator tooth.Stator is spliced into annular by a plurality of stator tooths and stator yoke, and coiling insulation framework is wound with enamelled wire and is enclosed within on stator tooth.Stator tooth and stator yoke are provided with and realize tenon and the tongue-and-groove that outside the interior punching of stator piece and stator piece, punching is spliced each other, and in stator piece, punching is provided with stator piece inside groove, stator piece inwall.
Rotor comprises bearing, moulds magnetic, adjusts packing ring, rotating shaft, rotor sheet, and rotating shaft adopts to press with rotor sheet and is connected, and rotor sheet is pressed into viscose glue with plastic magnetic rotor employing and is connected.
On wiring board, adopt pulse width modulation, utilize the numeral of microprocessor to export analog circuit is controlled, described wiring board has slot, is connected with the contact pin in coiling insulation framework.
Spell tooth-like brushless motor stator, can realize a plurality of stator tooths high-speed winding simultaneously, improve the utilance of stator core material, improve copper factor.Enamelled wire, in insulation framework, has guaranteed the evenness of coil, and the thickness of yoke portion coil and stator interplanar used outside insulated skeleton, has reduced the idle copper loss in winding coil end, can realize industrial automation and produce, and has solved the technical ability requirement to direct labor.
Stator pole shoes partly extends with both sides and is connected from susceptor body in a circumferential direction, the variation of pole shoe thickness has changed the concentration degree of the effective flux at the Coupling point place between stator poles and permanent magnet pole shoe, by configuration stator pole shoes thickness, along its circumferencial direction, change, change the torque characteristic of each stator poles and rotor permanent magnet pole shoe, guarantee the smooth operation of motor.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the outer lamination structure schematic diagram of stator piece
Fig. 2 is lamination structure schematic diagram in stator piece
Fig. 3 is assembled stator chip architecture schematic diagram
Fig. 4 is coiling insulation framework structural representation
Fig. 5 is circuit board structure schematic diagram
Fig. 6 is stator structure schematic diagram
Fig. 7 electric machine structure schematic diagram
In figure:
1, the outer punching 2 of punching 19 stator pieces, coiling insulation framework 3, wiring board 4, bearing 5 in stator piece 11, stator piece inside groove 12, stator piece inwall 13, stator piece location notch 14, stator tooth 15, stator yoke 16, tenon 17, tongue-and-groove 18, stator piece, mould magnetic 6, adjust packing ring 7, rotating shaft 8, rotor sheet 9, contact pin 10, casing
Embodiment
From accompanying drawing, a kind of brushless single phase motor of the present invention comprises stator 1, coiling insulation framework 2, rotor, wiring board 3, casing 10.Stator piece is split mounting type, punching in stator piece 18, the outer punching 19 of stator piece, consists of, and stator piece comprises stator tooth 14, stator yoke 15.Coiling insulation framework 2 cross sections are hollow " work " font, coiling insulation framework 2 is enclosed within on the stator tooth 14 of stator piece 1 after complete enamelled wire, form two groups of alternate between two coils, stator tooth 14 and stator yoke 15 are provided with and realize tenon 16 and the tongue-and-groove 17 that outside the interior punching 18 of stator piece and stator piece, punching 19 is spliced each other; In stator piece, punching 18 is provided with stator piece inside groove 11, stator piece inwall 12 is plastic magnetic rotor initial alignment grooves, according to the characteristic of magnetic pole shoe, when not switching on, the magnetic pole of rotor always rests on the position of stator piece inwall 12, in electric motor starting, between the magnetic pole of rotor and the magnetic pole of stator, there is the deviation of position, produce electromagnetic torque drive rotor and rotate.Stator piece location notch 13 is the location notchs that are connected with motor housing.
On wiring board 3, adopt pulse width modulation, utilize the numeral of microprocessor to export analog circuit is controlled; Wiring board 3 adopts open loop to control winding, the transmission of torque interval that has reduced teeth groove, thus increasing torque at rated load, motor operates to permanent rotating speed, and constant air quantity output is provided, and electric efficiency is high.Coiling insulation framework 2 is installed on stator piece 1, has location hole to be enclosed within coiling insulation framework 2 on wiring board 3, and wiring board 3 has slot, be connected with the contact pin 9 in coiling insulation framework 2, offer stator coil and produce rotating magnetic field, and can change as required rotating speed, realize Electric Machine Control.
Rotor is by riveting rotating shaft 7 on rotor sheet 8, and moulding magnetic 5 is the magnetic of moulding of multipolarity, is connected by location notch with rotor sheet 8, when moulding magnetic 5 and be pressed into rotor sheet, first at inner surface, apply glue, guarantee that the long-time use of motor can not get loose, after glue curing, put successively and adjust packing ring 6 and bearing 4.
During assembling motor, first the stator assembling is inserted in to motor case 10 by stator piece location notch 13, then packs rotor into, securing member is tightened.
Claims (6)
1. a brushless single phase motor, comprise stator (1), coiling insulation framework (2), rotor, wiring board (3), casing (10), it is characterized in that: described wiring board (3) adopts open loop to control winding, it is upper that coiling insulation framework (2) is installed on stator (1), has location hole to be enclosed within coiling insulation framework (2) on wiring board (3).
2. a kind of brushless single phase motor according to claim 1, it is characterized in that: described stator (1) is spliced into annular by a plurality of stator tooths (14) and stator yoke (15), coiling insulation framework (2) is wound with enamelled wire and is enclosed within on stator tooth (14).
3. a kind of brushless single phase motor according to claim 2, it is characterized in that: described stator tooth (14) and stator yoke (15) are provided with and realize tenon (16) and the tongue-and-groove (17) that outside the interior punching (18) of stator piece and stator piece, punching (19) is spliced each other, in stator piece, punching (18) is provided with stator piece inside groove (11), stator piece inwall (12).
4. a kind of brushless single phase motor according to claim 1, is characterized in that: described coiling insulation framework (2) cross section is hollow " work " font, has the installing hole running through up and down.
5. a kind of brushless single phase motor according to claim 1, it is characterized in that: rotor comprises bearing (4), moulds magnetic (5), adjusts packing ring (6), rotating shaft (7), rotor sheet (8), rotating shaft (7) adopts to press with rotor sheet (8) and is connected, and rotor sheet (8) is pressed into viscose glue with plastic magnetic rotor (5) employing and is connected.
6. a kind of brushless single phase motor according to claim 1, it is characterized in that: the upper employing of described wiring board (3) pulse width modulation, utilizing the numeral of microprocessor to export controls analog circuit, described wiring board (3) has slot, is connected with the contact pin (9) in coiling insulation framework (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441275.XU CN203466706U (en) | 2013-07-18 | 2013-07-18 | Single-phase brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441275.XU CN203466706U (en) | 2013-07-18 | 2013-07-18 | Single-phase brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466706U true CN203466706U (en) | 2014-03-05 |
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ID=50179043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320441275.XU Expired - Fee Related CN203466706U (en) | 2013-07-18 | 2013-07-18 | Single-phase brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203466706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712032A (en) * | 2018-07-11 | 2018-10-26 | 赵欣 | A kind of production method and special stater iron core press-loading apparatus of high-precision servo motor |
| US10498181B2 (en) | 2013-08-09 | 2019-12-03 | Johnson Electric International AG | Motor and method for using and making the same |
-
2013
- 2013-07-18 CN CN201320441275.XU patent/CN203466706U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10498181B2 (en) | 2013-08-09 | 2019-12-03 | Johnson Electric International AG | Motor and method for using and making the same |
| CN108712032A (en) * | 2018-07-11 | 2018-10-26 | 赵欣 | A kind of production method and special stater iron core press-loading apparatus of high-precision servo motor |
| CN108712032B (en) * | 2018-07-11 | 2023-08-01 | 江西拓又达科技集团有限公司 | Manufacturing method of high-precision servo motor and special stator core press-fitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20150718 |
|
| EXPY | Termination of patent right or utility model |