CN101997374B - Series excited machine - Google Patents
Series excited machine Download PDFInfo
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- CN101997374B CN101997374B CN201010261650.3A CN201010261650A CN101997374B CN 101997374 B CN101997374 B CN 101997374B CN 201010261650 A CN201010261650 A CN 201010261650A CN 101997374 B CN101997374 B CN 101997374B
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- stator
- chip assembly
- series excited
- winding
- excited machine
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Abstract
The invention provides a series excited machine, comprising a stator and a rotor capable of rotating relative to the stator; the stator comprises two opposite stator chip assemblies basically in C-shaped structure and a winding wound on each stator chip assembly; each stator chip assembly comprises a yoke part positioned in the middle position and a pole part positioned at both ends of the yoke; and the winding is respectively wound on the corresponding yoke. The stator further comprises two connecting pieces connecting the stator chip assembly at both sides of the stator so that the two stator chip assemblies and the winding are fixed into a whole body before the end cover is installed. Compared with the series excited machine with the same power in the prior art, the winding of the stator of the machine is wound on the yoke part of the chip of the stator and the circumferential size of the yoke is relatively long so that the winding of the stator is relatively narrow and the thrum is relatively low, thereby being capable of saving the material of the winding; moreover, the stator chip of the series excited machine is rectangular, and the cross-sectional area of the stator chip assembly is relatively smaller than that of the stator chip of the series excited machine with the same rotor diameter, thereby being capable of saving the material of stator chip.
Description
Technical field
The present invention relates to a kind of series excited machine.
Background technology
General series excited machine, its stator comprises integral type frame iron core 12 ', and from four salient pole that frame 12 ' unshakable in one's determination extends internally, stator winding 14 ' is wound in the connecting neck portion of stator salient pole and frame, as shown in Figure 9.But, the stator core of this kind of structure, in order to ensure the size of rotor, connecting neck portion is usually shorter, and also namely the radial gap of stator salient pole and frame is narrower, is therefore wound in the stator winding usual more flat (axis direction of parallel winding) in connecting neck portion, the end of a thread higher (axis direction of vertical winding), like this, the girth near the coil of outside is longer, thus waste winding material.
For this reason, the present invention aims to provide a kind of series excited machine improving the problems referred to above.
Summary of the invention
The invention provides a kind of series excited machine, comprise stator and can relative stator rotate rotor, described stator comprises the stator chip assembly of two relative substantially C-shaped structures, and the winding be wound on each stator chip assembly, each stator chip assembly comprises the yoke portion being positioned at centre position and the pole portion being positioned at two ends, yoke portion, and described winding is wound in corresponding yoke portion respectively.
The present invention further improves and is, described two stator chip assemblies are symmetrical along the first center line, each stator chip assembly is symmetrical along the second center line, and the first center line and the second central axis, the first center line and the second center line are all perpendicular to electrical axis direction.
The present invention further improves and is, described stator also comprises an end cap and is fixed on an axial end of described two stator chip assemblies and connects described stator chip assembly, one carbon brush component is installed on described end cap, described rotor comprises a commutator, described carbon brush component comprises some carbon brush, for the commutator sliding contact with rotor.
The present invention further improves and is, each pole portion forms a circular arc pole-face, and described rotor comprises rotor core and is wound in the winding in rotor core, and described rotor core and winding are contained in the space that described pole-face surrounds.
The present invention further improves and is, described stator chip assembly take up space is into rectangular-shaped.
The present invention further improves and is, during described winding energising, each pole portion forms a magnetic pole, and described motor is quadrupole motor.
The present invention further improves and is, described stator also comprises a connection piece and connects described stator chip assembly in stator side along its circumference, thus makes described two stator chip assemblies and winding be fixed into an entirety before end cap is installed.
The present invention further improves and is, described stator also comprises another connector and connects described stator chip assembly in stator opposite side along its circumference.
The present invention further improves and is, is connected and fixed between described connector and stator chip assembly by wedge joint face.
The present invention further improves and is, described connector is made up of non-magnet material.
Alternatively, described connector also can be made up of permeability magnetic material.
The beneficial effect that illustrated embodiment of the present invention has is: stator winding be wound in be positioned at C type structure stator chip centre position yoke portion on, yoke portion is relatively long along the size of stator circumference, thus the stator winding be wound in yoke portion can be relatively wide, the end of a thread is shorter, girth near the coil of winding exterior portion is less than in prior art the girth of the coil of the close winding exterior portion of the series excited machine with equal-wattage relatively, thus can save winding material; And stator chip assembly take up space is into rectangular-shaped, and the cross-sectional area perpendicular to rotor axial of stator chip is less than the cross-sectional area of the stator chip of prior art relatively, thus can save stator chip material.
In order to further understand feature of the present invention and technology contents, refer to following detailed description for the present invention and accompanying drawing, but institute's accompanying drawing only provides reference and explanation use, is not used for being limited the present invention.
Accompanying drawing explanation
In accompanying drawing:
Fig. 1 is the perspective view of one embodiment of the invention series excited machine;
Fig. 2 is the perspective view of stator chip assembly in the series excited machine shown in Fig. 1 and stator winding;
Fig. 3 is the stator chip assembly end view vertically in the series excited machine shown in Fig. 1;
Fig. 4 is the perspective view after end cap removed by the series excited machine shown in Fig. 1;
Fig. 5 is the perspective view after the series excited machine shown in Fig. 1 removes end cap, carbon brush, commutator;
Fig. 6 is to the series excited machine that Figure 8 shows that another embodiment of the present invention;
Fig. 9 is the stator structure schematic diagram in the series excited machine of prior art.
Embodiment
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention describe in detail, will make technical scheme of the present invention and other beneficial effects apparent.
Below in conjunction with Fig. 1 to Fig. 4, embodiments of the invention are set forth.
Refer to Fig. 1, according to the series excited machine of one embodiment of the invention, comprise stator 10, can the rotor 30 that rotates of relative stator 10.
Refer to Fig. 2, stator chip assembly 12, two stator chip assembly 12 interval that described stator 10 comprises two relative C-shaped structures is arranged, and each chip assembly 12 is tied with a winding 14.
In the present invention, so-called C shape structure is broader sense, comprises the shape of other nearly similar C-shapeds such as the C shape on ordinary meaning, inverted U-shaped, semilune, half square brackets " [" "] " shape.
Preferably, the chip be made up of permeability magnetic material of several of each chip assembly 12 is stacking vertically forms.Refer to Fig. 3, each chip comprises the yoke portion 122 being positioned at centre position and the pole portion 124 being positioned at two ends, yoke portion 122, and each pole portion 124 has the pole-face that is arc-shaped, and four pole-faces of two chip assemblies 12 are positioned on the circular arc of a circumference respectively equally spacedly.Described winding 14 is wound in the yoke portion 122 of stator chip assembly 12, and when described winding 14 is energized, four pole portions 124 of two chip assemblies 12 form four magnetic pole of the stator.The outward flange of each chip establishes some breach 125, so that weld stator chip assembly stacking vertically herein.Preferably, described two stator chip assemblies 12 are symmetrical along the first center line Y, and each stator chip assembly 12 is symmetrical along the second center line X, and the first center line Y is vertical with the second center line X, and the first center line Y and the second center line X is all perpendicular to electrical axis direction.
Described stator 10 also comprises two U-shaped end caps 16,17 and is fixed on two axial ends of the stator chip assembly 12 of described two relative C type structures and connects described two stator chip assemblies 12.One carbon brush component 18 is installed in a wherein end cap 16, comprises four carbon brush 20, is uniformly distributed along periphery of rotor, for commutator 38 sliding contact with rotor 30, sees Fig. 4.Described two end cap 16,17 is fixed to described two stator chip assemblies 12 by screw 19.Preferably, each pole portion 124 of described stator chip assembly 12 establishes through hole 126, wherein an end cap 17 establishes through hole, and another end cap 16 establishes screw, locks in the screw of another end cap 16 after the through hole 126 of described screw 19 through the through hole on described end cap 17, described stator chip assembly 12.
Refer to Fig. 5, described rotor 30 comprise rotating shaft 32, the rotor core 34 of being fixed in rotating shaft 32, the rotor windings 36 be wound in rotor core 34, commutator 38.In the space that four pole-faces that described rotor core 34 is contained in the stator chip assembly 12 of two relative C type structures surround, and relative with pole-face, and rotor windings 36 is electrically connected to commutator 38.
In above-described embodiment, stator winding 14 is wound in the yoke portion 122 in the stator chip centre position being positioned at C type structure, yoke portion 122 is relatively long along the size of stator circumference, thus be wound in stator winding 14 in yoke portion 122 can relatively wide (parallel winding axis direction), the end of a thread shorter (vertical winding axis direction), girth near the coil of winding exterior portion is less than in prior art the girth of the coil of the close winding exterior portion of the series excited machine with equal-wattage relatively, thus can save winding material; And the stator chip of the series excited machine of the present embodiment is rectangle shape, the cross-sectional area of stator chip assembly is less than in prior art the cross-sectional area of the stator chip of the series excited machine with identical root diameter relatively, thus can save stator chip material; In addition, the outline take up space of the stator chip assembly in the present embodiment is into rectangular-shaped, and the motor therefore in the present embodiment is applicable to some special long and narrow space.
Fig. 6 is to the series excited machine that Figure 8 shows that another embodiment of the present invention.
Refer to Fig. 6 to Fig. 8, described motor and aforementioned motor basic simlarity, difference is two abutting ends that described motor stator also comprises two connectors 50 and connects two stator chip assemblies 12 respectively.The outer surface of every one end of described stator chip assembly 12 establishes fluting 128 vertically, and described two connectors 50 can insert in fluting 128 from the axial side of stator chip assembly 12 respectively, thus are connected by two stator chip assemblies 12.Preferably, the cross section of described fluting 128 is wedge, and groove width is from inside outwards narrower gradually, and the insertion end 52 of described connector 50 has the shape matched with described fluting 128, thus connector 50 can be avoided to skid off along the direction of motor vertical axis in groove.For preventing the insertion end 52 of described connector 50 from skidding off along electrical axis direction in described fluting 128, can tight fit or gluing or be welded and fixed between the two between insertion end 52 and fluting 128.The use of connector 50, can make described stator chip assembly 12 fix before installation end cap 16,17 in aggregates, thus facilitate the installation of follow-up end cap 16,17 to fix.And the use of connector 50, can increase the rigidity of stator entirety.
Described connector 50 can be all made up of magnetic material, and when winding 14 is energized, pole portion 124 polarity that described two stator chip assemblies 12 are connected by connector 50 is identical, and like this, motor is bipolar machine.Described connector 50 also can one of them be made up of magnetic material, and wherein another is made up of nonmagnetic substance, and motor is still bipolar machine.
Described connector 50 can also be all made up of nonmagnetic substance, and when winding 14 is energized, four the pole portion 124 of motor stator forms four poles, is also quadrupole motor.
The above, for the person of ordinary skill of the art, can make other various corresponding change and distortion according to technical scheme of the present invention and technical conceive, and all these change and be out of shape the protection range that all should belong to claim of the present invention.
Claims (8)
1. a series excited machine, comprise stator, can relative stator rotate rotor, it is characterized in that: described stator comprises the stator chip assembly of two relative substantially C-shaped structures, and the stator winding be wound on each stator chip assembly, the C cake core that each stator chip assembly is made up of several permeability magnetic materials forms along motor shaft to stacking, each stator chip assembly comprises the yoke portion being positioned at centre position and the pole portion being positioned at two ends, yoke portion, described yoke portion and pole portion have identical axial width, described stator winding is wound in corresponding yoke portion respectively, described two stator chips always arrange at interval and spacing is fixed, each pole portion forms the pole-face of an arc-shaped, described pole-face interval in motor circumference is arranged, during described winding energising, each pole portion forms a magnetic pole, described rotor comprises rotor core and is wound in the rotor windings in rotor core, and described rotor core and rotor windings are contained in the space that described pole-face surrounds, described stator comprises a connection piece and connects described stator chip assembly in stator side along its circumference, thus make described two stator chip assemblies and stator winding be fixed into an entirety before end cap is installed, be connected and fixed by wedge joint face between described connector and stator chip assembly, the groove width of described wedge joint face from inside outwards narrows gradually, and the insertion end of described connector has the shape matched with described wedge joint face.
2. series excited machine as claimed in claim 1, it is characterized in that: described two stator chip assemblies are symmetrical along the first center line, each stator chip assembly is symmetrical along the second center line, and the first center line and the second central axis, the first center line and the second center line are all perpendicular to electrical axis direction.
3. series excited machine as claimed in claim 2, it is characterized in that: described stator also comprises an end cap and is fixed on an axial end of described two stator chip assemblies and connects described stator chip assembly, one carbon brush component is installed on described end cap, described rotor comprises a commutator, described carbon brush component comprises some carbon brush, for the commutator sliding contact with rotor.
4. series excited machine as claimed in claim 2, is characterized in that: described stator chip assembly take up space is into rectangular-shaped.
5. series excited machine as claimed in claim 1, is characterized in that: described stator also comprises another connector and connects described stator chip assembly in stator opposite side along its circumference.
6. series excited machine as claimed in claim 5, is characterized in that: can tight fit or gluing or be welded and fixed between the two between described insertion end and described wedge joint face.
7. series excited machine as claimed in claim 6, it is characterized in that: described two connectors are all made up of non-magnet material, described motor is quadrupole motor.
8. series excited machine as claimed in claim 6, it is characterized in that: at least one of them is made up of permeability magnetic material described two connectors, described motor is bipolar machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010261650.3A CN101997374B (en) | 2009-08-21 | 2010-08-09 | Series excited machine |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101093799 | 2009-08-21 | ||
| CN200910109379 | 2009-08-21 | ||
| CN200910109379.9 | 2009-08-21 | ||
| CN201010261650.3A CN101997374B (en) | 2009-08-21 | 2010-08-09 | Series excited machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101997374A CN101997374A (en) | 2011-03-30 |
| CN101997374B true CN101997374B (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010261650.3A Expired - Fee Related CN101997374B (en) | 2009-08-21 | 2010-08-09 | Series excited machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101997374B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2563612B (en) | 2017-06-20 | 2020-09-23 | Dyson Technology Ltd | An electric motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2453358A (en) * | 1945-03-07 | 1948-11-09 | Bertea Alex | Electric motor |
| US4707910A (en) * | 1984-02-25 | 1987-11-24 | Black & Decker Inc. | Method of assembling electric motors |
| US5081387A (en) * | 1987-12-24 | 1992-01-14 | Whirlpool Corporation | Pump motor/basket brake for an automatic washer |
| CN1195221A (en) * | 1997-02-07 | 1998-10-07 | 德昌电机股份有限公司 | Electric motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19747289B4 (en) * | 1997-10-25 | 2008-11-20 | Robert Bosch Gmbh | Method for PCB mounting of a stepper motor |
-
2010
- 2010-08-09 CN CN201010261650.3A patent/CN101997374B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2453358A (en) * | 1945-03-07 | 1948-11-09 | Bertea Alex | Electric motor |
| US4707910A (en) * | 1984-02-25 | 1987-11-24 | Black & Decker Inc. | Method of assembling electric motors |
| US5081387A (en) * | 1987-12-24 | 1992-01-14 | Whirlpool Corporation | Pump motor/basket brake for an automatic washer |
| CN1195221A (en) * | 1997-02-07 | 1998-10-07 | 德昌电机股份有限公司 | Electric motor |
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| Publication number | Publication date |
|---|---|
| CN101997374A (en) | 2011-03-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20190809 |
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| CF01 | Termination of patent right due to non-payment of annual fee |