CN103730995A - External rotor single-phase motor - Google Patents
External rotor single-phase motor Download PDFInfo
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- CN103730995A CN103730995A CN201310713890.6A CN201310713890A CN103730995A CN 103730995 A CN103730995 A CN 103730995A CN 201310713890 A CN201310713890 A CN 201310713890A CN 103730995 A CN103730995 A CN 103730995A
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- stator
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Abstract
The invention relates to the field of motors, in particular to an external rotor single-phase motor which comprises a stator, a rotor, a rotating shaft and a shell fixed to the exterior of the rotor. The stator is sleeved with the rotor. A bearing is arranged on the shaft neck, arranged inside a through hole of the stator, of the rotating shaft. The shell is fixedly connected with the end, away from the stator, of the rotating shaft. The stator comprises a stator iron core and stator windings. The stator iron core is a complete circular ring formed by connecting circular arc unit sections with the same curvature in an end-to-end mode. Stator grooves are formed in the periphery of the outer side of the stator iron core. A yoke portion is formed between the groove bottoms of the stator grooves and the inner hole wall of the stator iron core. The stator windings comprise main windings and auxiliary windings. The main windings and the auxiliary windings are arranged according to single-phase motor windings and arranged at the yoke portion of the stator iron core in a winding mode. The number of the windings capable of being contained inside the stator grooves is larger than that of the windings of inserted line structures capable of being contained inside the stator grooves, and coils wound around the yoke portion of the stator iron core are more compact; the space utilization rate of the stator grooves is remarkably improved, the size of the stator is reduced, and the size of the motor is also reduced.
Description
Technical field
The present invention relates to machine field, particularly external rotor monophase machine.
Background technology
The stator winding of existing external rotor monophase machine is first enamelled wire to be coiled into a branch of elliptoid coil, then coil is embedded in stator slot.The two rectangular limits that form a wire loop are positioned at different stator slots, that is to say that a wire loop needs two stator slots to store, and coil can not fully be full of stator slot, only in stator slot, leave enough spaces and can carry out rule, relatively loose between coil turn so, cause the space availability ratio of groove low, the size of stator slot is large, finally causes motor volume to increase.Also have a large amount of coils to overhang on two axial ends of stator core, cause raw-material waste, production cost is high.Further, be mostly to adopt manual wire embedding at present, very high to the requirement of workman's level, workload is large, and production efficiency is relatively low.
Summary of the invention
The space availability ratio that the object of this invention is to provide a kind of stator core slot is high, the external rotor monophase machine that production efficiency is high.Provide a kind of space utilization of stator core slot high, the external rotor monophase machine that production efficiency is high.
For achieving the above object, the present invention has adopted following technical scheme: a kind of external rotor monophase machine, comprise stator and rotor, rotating shaft and be fixed on the casing of rotor exterior, rotor is enclosed within the outside of stator, the middle part of stator is provided with the through hole passing through for rotating shaft, rotating shaft is placed on the axle journal in stator through hole and is provided with bearing, rotating shaft is away from the affixed casing in one end of stator, described stator comprises stator core and stator winding, described stator core is by the identical circular arc elementary section complete circle that head and the tail connect and compose each other of curvature, in the outer periphery of stator core, offer stator slot, the bottom land of stator slot to stator core inner hole wall forms yoke portion, stator winding comprises main winding and auxiliary winding, described main winding and auxiliary winding press monophase machine winding arrange and winding in the yoke portion of stator core.
Owing to adopting above technical scheme, a wire loop of stator winding only has a limit to be positioned at stator slot, another side is at the inner hole wall place of stator core, also just say that a wire loop only needs a stator slot to store, winding with machine directly in stator yoke portion, between wire turn, arrange tightr, the number of turn that the turn ratio that can hold winding in onesize stator slot is held rule structure winding is many, obviously being promoted of the space availability ratio of stator slot, reduce stator volume, namely reduced motor volume.And the stator of this structure saves manual wire embedding's operation, reduce the amount of labour, operating efficiency is significantly improved.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the front view of stator;
Fig. 3 is the cutaway view of stator;
Fig. 4 is the structural representation of circular arc elementary section;
Fig. 5 is the structural representation of circular arc elementary section fit on insulation retaining frame.
Embodiment
As Figure 1-3, a kind of external rotor monophase machine, comprise stator 10 and rotor 20, rotating shaft 30 and the casing 40 that is fixed on rotor exterior, rotor 20 is enclosed within the outside of stator 10, the middle part of stator 10 is provided with the through hole passing through for rotating shaft 30, rotating shaft 30 is placed on the axle journal in stator 10 through holes and is provided with bearing 31, rotating shaft 30 is away from the affixed casing 40 in one end of stator 10, described stator 10 comprises stator core 11 and stator winding 12, described stator core 11 is by the identical circular arc elementary section 11A complete circle that head and the tail connect and compose each other of curvature, in the outer periphery of stator core 11, offer stator slot 112, the bottom land of stator slot 112 to stator core 11 inner hole walls form yoke portion 111, stator winding 12 comprises main winding 121 and auxiliary winding 122, described main winding 121 and auxiliary winding 122 press monophase machine winding arrange and winding in the yoke portion 111 of stator core 11.Relative position Rankine-Hugoniot relations between main winding 121 and auxiliary winding 122 is undertaken by single-phase electric machine stator winding arrangement regulation, mode.Give an example, by adjacent two stator slots 112 as one group, that is to say that adjacent two stator slots 112 are interior arranges main winding 121 simultaneously or auxiliary winding 122 is set simultaneously, main winding 121 and auxiliary winding 122 intervals are arranged, the position relationship of main winding 121 and auxiliary winding 122 and stator core 11 is that equal winding is in the yoke portion 111 of stator core 11, as shown in Figure 2.
As Fig. 2-5, described stator core 11 is along the circumferential direction spliced successively by two or more circular arc elementary section 11A, between circular arc elementary section 11A, is provided with fastening unit.The stator core 11 of split-type structural is more prone to realize machine coiling.The yoke portion 111 of stator core 11 refers to the position between bottom land and stator core 11 inner hole walls of stator slot 112, and enamelled wire outwards forms stator winding 12 successively from stator slot 112 inside in yoke portion 111.A wire loop of stator winding 12 only has a limit to be positioned at stator slot 112, another side abuts on the inner hole wall of stator core 11, also just say that a wire loop only needs a stator slot 112 to store, also quantity or the space of the stator slot of half have just been saved comparatively speaking, and comparatively compact around the coil of stator core yoke portion 111, arriving obviously of the space hold rate of stator slot promotes.Guaranteeing, under the prerequisite that power of motor is constant, can to reduce the degree of depth of stator slot 112, namely reduced stator diameter, thereby reach the object that reduces motor volume, and the stator of this structure saves manual wire embedding's operation, reduce the amount of labour, operating efficiency is significantly improved.And a wire loop is in same stator slot 112, the enamelled wire that avoids waste, saves raw material, reduces production costs.
Described stator core 11 is spliced by the circular arc elementary section 11A of two semi-circular structure, one end that circular arc elementary section 11A along the circumferential direction goes up is provided with raised line 113, the other end is provided with the groove 114 identical with raised line 113, described raised line 113 is placed in the groove 114 of adjacent circular arc elementary section 11A, and raised line 113 and the groove 114 of engaging form fastening unit mutually.Two end faces of circular arc elementary section 11A all extend clamping part 115 towards its annular center of circle, and the effect of this clamping part 115 is for gripping circular arc elementary section 11A when machine winds the line.The stator core 11 of two halves formula also guarantees the intensity of iron core when being convenient to coiling, two circular arc elementary section 11A are buckled into a completely circular structure, and the time processing moulding in punching lamination of raised line 113 and groove 114, without secondary operations.
Described stator core 11 outer wrap have insulation retaining frame 13, round-corner transition between the axial end of described insulation retaining frame 13 and periphery.Stator core 11 is to be formed by stacking by some punchings, and in yoke portion 111, sheathed insulation retaining frame 13, can avoid damaging enamelled wire, guarantees product quality, and the retaining frame 13 in the present invention can be adopted protective sleeve made of plastic.
Described casing is step tubular type, and its Large Diameter Pipeline portion fixed cover is located on external rotor, and pipe with small pipe diameter portion is sheathed to be fixed on the axle body that rotating shaft is positioned at stator outside.
Described stator core 11 and stator winding 12 outsides are injected with insulation crust 14.
Described rotor 20 is cage rotor.
The stator core 11 of the good winding 12 of coiling is put into plastic packaging machine and carry out plastic packaging, become an integrally-built stator 10, can effectively prevent from misplacing between circular arc elementary section 11A, separate etc.
Claims (6)
1. an external rotor monophase machine, comprise stator (10) and rotor (20), rotating shaft (30) and be fixed on the casing (40) of rotor exterior, it is characterized in that: rotor (20) is enclosed within the outside of stator (10), the middle part of stator (10) is provided with the through hole passing through for rotating shaft (30), rotating shaft (30) is placed on the axle journal in stator (10) through hole and is provided with bearing (31), rotating shaft (30) is away from the affixed casing in one end (40) of stator (10), described stator (10) comprises stator core (11) and stator winding (12), described stator core (11) is by identical circular arc elementary section (11A) complete circle that head and the tail connect and compose each other of curvature, in the outer periphery of stator core (11), offer stator slot (112), the bottom land of stator slot (112) to stator core (11) inner hole wall forms yoke portion (111), stator winding (12) comprises main winding (121) and auxiliary winding (122), described main winding (121) and auxiliary winding (122) press monophase machine winding arrange and winding in the yoke portion (111) of stator core (11).
2. external rotor monophase machine according to claim 1, it is characterized in that: described stator core (11) is spliced by the circular arc elementary section (11A) of two semi-circular structure, one end that circular arc elementary section (11A) is along the circumferential direction gone up is provided with raised line (113), the other end is provided with the groove (114) identical with raised line (113), and described raised line (113) is placed in the groove (114) of adjacent circular arc elementary section (11A).
3. external rotor monophase machine according to claim 1, is characterized in that: described stator core (11) outer wrap has insulation retaining frame (13), round-corner transition between the axial end of described insulation retaining frame (13) and periphery.
4. external rotor monophase machine according to claim 1, it is characterized in that: described casing (40) is step tubular type, it is upper that its Large Diameter Pipeline portion fixed cover is located at external rotor (20), and pipe with small pipe diameter portion is sheathed to be fixed on rotating shaft (30) and to be positioned on the outside axle body of stator (10).
5. according to the external rotor monophase machine described in claim 2 or 3, it is characterized in that: described stator core (11) and stator winding (12) outside are injected with insulation crust (14).
6. external rotor monophase machine according to claim 1, is characterized in that: described rotor (20) is cage rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713890.6A CN103730995A (en) | 2013-12-20 | 2013-12-20 | External rotor single-phase motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713890.6A CN103730995A (en) | 2013-12-20 | 2013-12-20 | External rotor single-phase motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103730995A true CN103730995A (en) | 2014-04-16 |
Family
ID=50454966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310713890.6A Pending CN103730995A (en) | 2013-12-20 | 2013-12-20 | External rotor single-phase motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103730995A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016199398A1 (en) * | 2015-06-08 | 2016-12-15 | パナソニックＩｐマネジメント株式会社 | Brushless dc motor and blower device |
| CN109474086A (en) * | 2018-12-28 | 2019-03-15 | 广东顺德四格机电有限公司 | A kind of assembly of casing and iron core |
| WO2023164878A1 (en) * | 2022-03-03 | 2023-09-07 | 罗灿 | Shaded-pole starting and ordinary-pole operation type electric motor |
| WO2023164866A1 (en) * | 2022-03-03 | 2023-09-07 | 罗灿 | Yoke-winding-based multi-speed single-phase alternating-current electric motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238216Y (en) * | 2008-07-25 | 2009-05-13 | 珠海格力电器股份有限公司 | Stator core used for electric motor |
| JP2009284626A (en) * | 2008-05-21 | 2009-12-03 | Daihatsu Motor Co Ltd | Stator of rotating machine and motor |
| CN102299597A (en) * | 2011-09-05 | 2011-12-28 | 王誉燕 | Permanent magnet two-phase brushless sub-stator motor |
| CN103227519A (en) * | 2013-05-08 | 2013-07-31 | 佛山市威灵洗涤电机制造有限公司 | Motor stator and external rotor motor with motor stator |
| CN203617866U (en) * | 2013-12-20 | 2014-05-28 | 合肥凯邦电机有限公司 | External rotor single-phase electric machine |
-
2013
- 2013-12-20 CN CN201310713890.6A patent/CN103730995A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009284626A (en) * | 2008-05-21 | 2009-12-03 | Daihatsu Motor Co Ltd | Stator of rotating machine and motor |
| CN201238216Y (en) * | 2008-07-25 | 2009-05-13 | 珠海格力电器股份有限公司 | Stator core used for electric motor |
| CN102299597A (en) * | 2011-09-05 | 2011-12-28 | 王誉燕 | Permanent magnet two-phase brushless sub-stator motor |
| CN103227519A (en) * | 2013-05-08 | 2013-07-31 | 佛山市威灵洗涤电机制造有限公司 | Motor stator and external rotor motor with motor stator |
| CN203617866U (en) * | 2013-12-20 | 2014-05-28 | 合肥凯邦电机有限公司 | External rotor single-phase electric machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016199398A1 (en) * | 2015-06-08 | 2016-12-15 | パナソニックＩｐマネジメント株式会社 | Brushless dc motor and blower device |
| JPWO2016199398A1 (en) * | 2015-06-08 | 2018-03-29 | パナソニックＩｐマネジメント株式会社 | Brushless DC motor, blower |
| CN109474086A (en) * | 2018-12-28 | 2019-03-15 | 广东顺德四格机电有限公司 | A kind of assembly of casing and iron core |
| WO2023164878A1 (en) * | 2022-03-03 | 2023-09-07 | 罗灿 | Shaded-pole starting and ordinary-pole operation type electric motor |
| WO2023164866A1 (en) * | 2022-03-03 | 2023-09-07 | 罗灿 | Yoke-winding-based multi-speed single-phase alternating-current electric motor |
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Application publication date: 20140416 |