CN107769404A - A kind of stator, motor and household electrical appliance - Google Patents
A kind of stator, motor and household electrical appliance Download PDFInfo
- Publication number
- CN107769404A CN107769404A CN201711209439.5A CN201711209439A CN107769404A CN 107769404 A CN107769404 A CN 107769404A CN 201711209439 A CN201711209439 A CN 201711209439A CN 107769404 A CN107769404 A CN 107769404A
- Authority
- CN
- China
- Prior art keywords
- stator
- yoke
- connection sheet
- tooth
- motor
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of stator, motor and household electrical appliance, the stator is tooth yoke separate structure, including coordinates the stator teeth being fixed together and stator yoke；The stator teeth includes the multiple stator tooths circumferentially arranged, each described stator tooth includes also including the connection member that the multiple stator tooths circumferentially arranged are integrally fixed with the pole shoe end of rotor engagement and the magnetic pole fixed with the stator yoke, the stator teeth.Stator, motor and the household electrical appliance of the present invention, scattered multiple stator tooths are connected into integral stator teeth by connection member, stator teeth after connection is overall and stator yoke is assembled, avoid because of the rigging error of scattered multiple stator tooths and stator yoke, the circularity for the locus circle that the pole shoe of stator teeth after assembling surrounds is set to meet design requirement, motor performance is good, and production efficiency is high.
Description
Technical field
The present invention relates to motor technology, and in particular to a kind of stator, motor and household electrical appliance.
Background technology
The monophase machine of existing household electrical appliance such as electric fan, its stator are mostly the pole of 4 groove 4, and stator structure is divided into 3 kinds, whole
Body formula, tooth yoke separate type and sectional type；Wherein, monolithic construction, technique is more ripe, Stability Analysis of Structures, and electric efficiency is high, but due to
Coiling is limited by around mode, is not easy to using Automated winding equipment or is used Automated winding equipment but threading speed
Slowly, winding process low production efficiency, seldom use.
Tooth yoke separate structure, as Figure 1-3, by the way that stator teeth and stator yoke 12 are separated, wherein stator tooth
Part be four stator tooths 11, so, interior around being changed to outside around being pressed into again after complete line, improve the production efficiency of winding process；
But because four stator tooths 11 are mutually scattered, during stator yoke is pressed into, due to stator tooth 11 and stator yoke 12
The error of fit dimension and/or the steering error of pressing tool, are also easy to produce larger rigging error, cause the pole shoe of stator teeth
The locus circle surrounded is non-round, and then causes to become motor noise to design requirement, generation is not met in circumference with the air gap of rotor
Greatly, efficiency reduces, the performance issue such as cause motor stuck when serious.
Fraction block structure is, it is necessary to which the stator tooth that coiling is completed is welded and fixed with stator yoke, when adding welding
Between, cause production efficiency not high, and fraction block structure is there is also stator tooth and stator yoke rigging error are big, cause stator with
Rotor airgap does not meet the problem of design requirement.
The content of the invention
In view of this, it is an object of the invention to provide a kind of stator, motor and household electrical appliance, it can guarantee that stator teeth
The circularity for the locus circle that pole shoe surrounds, ensure motor performance, and production efficiency is high.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The embodiment of the present invention provides a kind of stator, and the stator is tooth yoke separate structure, including coordinates and be fixed together
Stator teeth and stator yoke；The stator teeth includes the multiple stator tooths circumferentially arranged, each described stator tooth
The magnetic pole fixed including the pole shoe end with rotor engagement and with the stator yoke, the stator teeth also includes will circumferentially
The connection member that multiple stator tooths of arrangement are integrally fixed.
In such scheme, the connection member be arranged above circumferentially arrange the multiple stator tooths and/or under
The connection sheet of side, the connection sheet connect the upper surface and/or lower surface of each stator tooth respectively.
In such scheme, the connection sheet includes the middle pole shoe bore set and the fixation for being fixed on the stator yoke
Portion；The diameter of the pole shoe bore is equal to the track diameter of a circle that the pole shoe end surrounds.
In such scheme, the fixed part of the connection sheet is provided with the default fit structure fixed with the stator yoke.
In such scheme, the default fit structure is consistent with the shape of the magnetic pole.
In such scheme, the material of the connection sheet is consistent with the material of the stator tooth.
In such scheme, the stator also includes the Insulating frame for being installed on the stator teeth, and the connection sheet is provided with
Limit the lug boss of Insulating frame position.
In such scheme, the lug boss comprises at least a right angle projection.
In such scheme, the multiple stator tooths circumferentially arranged leave 0.5-2.0mm gap each other.
The embodiment of the present invention also provides a kind of motor, and the motor includes above-mentioned stator.
The embodiment of the present invention also provides a kind of household electrical appliance, and the household electrical appliance include above-mentioned motor.
Stator, motor and the household electrical appliance of the present invention, scattered multiple stator tooths are connected by connection member integral
Stator teeth, stator teeth after connection is overall to be assembled with stator yoke, avoids the multiple stator tooths and stator because disperseing
The rigging error in yoke portion, the circularity for the locus circle that the pole shoe of stator teeth after assembling surrounds is set to meet design requirement, motor performance
Good, production efficiency is high.
Other beneficial effects of the present invention will combine concrete technical scheme in a specific embodiment and further illustrate.
Brief description of the drawings
Fig. 1 is the schematic diagram of the stator teeth in tooth yoke separate type stator of the prior art；
Fig. 2 is the schematic diagram of the stator yoke in tooth yoke separate type stator of the prior art；
Fig. 3 is the schematic diagram after tooth yoke separate type stator of the prior art assembling；
Fig. 4 is the schematic diagram of the stator of the embodiment of the present invention one；
Fig. 5 is the schematic diagram of connection sheet in the stator of the embodiment of the present invention one；
Fig. 6 is that stator teeth is not installing the schematic diagram of connection sheet in the stator of the embodiment of the present invention one；And
Fig. 7 is the schematic diagram that stator teeth installs connection sheet in the stator of the embodiment of the present invention one.
Embodiment
The invention provides a kind of stator, including coordinate the stator teeth being fixed together and stator yoke；The stator
Teeth portion includes multiple stator tooths for circumferentially arranging, each described stator tooth include with the pole shoe end of rotor engagement and with it is described
The magnetic pole that stator yoke is fixed, the stator teeth also include the multiple stator tooths circumferentially arranged being integrally fixed
Connection member.
The beneficial effects of the invention are as follows：Scattered multiple stator tooths are connected into integral stator tooth by connection member
Portion, the stator teeth after connection is overall and stator yoke is assembled, and avoids because of the dress of scattered multiple stator tooths and stator yoke
With error, the circularity for the locus circle that the pole shoe of stator teeth after assembling surrounds is set to meet design requirement, motor performance is good, production effect
Rate is high.
In order to more understand the features of the present invention and technology contents in detail, below in conjunction with specific Application Example
And realization of the accompanying drawing to the present invention is described in detail, appended accompanying drawing purposes of discussion only for reference, not it is used for limiting the present invention.
Embodiment one
Fig. 4 is the schematic diagram of the stator of the embodiment of the present invention one, as shown in figure 4, the stator is tooth yoke separate structure, bag
Include and coordinate the stator teeth 20 being fixed together and stator yoke 22, the cooperation of the present embodiment to refer to set in stator yoke 22
Dovetail groove, set on stator teeth 20 corresponding to swallow-tail form projection, fits kind can be interference fit, but the magnitude of interference can not be too
Greatly, in order to avoid making stator teeth 20 or stator yoke 22 produce larger deformation.Include with reference to referring to Fig. 6, stator teeth 20 in circle
Multiple stator tooths 21 of week arrangement, each stator tooth 21 include the pole shoe end 211 and and stator yoke with rotor cooperation (not shown)
The magnetic pole 212 that portion 22 is fixed.
For ensure stator tooth 21 load stator yoke 22 position it is correct, stator teeth 20 also includes circumferentially arranging
The connection member that multiple stator tooths 21 are integrally fixed, in the present embodiment, the connection member, which is arranged at, circumferentially to be arranged
Connection sheet 3 above and below multiple stator tooths 21, the connection sheet 3 of top connect the upper surface of each stator tooth 21 respectively, under
The connection sheet 3 of side connects the lower surface of each stator tooth 21 respectively.Fig. 5 is the signal of connection sheet in the stator of the embodiment of the present invention one
Figure, it is to be understood that, connection sheet 3 can also be only arranged above or below stator teeth 20.Specifically, connected for guarantee
Piece has enough intensity, and the thickness of connection sheet needs to be more than or equal to 1 millimeter, if the silicon steel sheet thickness for making stator tooth 21 is
0.5 millimeter, then connection sheet formed using two panels silicon steel plate stacking.
In the present embodiment, stator tooth 21 is four, and stator yoke 22 is one, that is, the small household appliances such as electric fan are general
The pole motor of 4 groove 4., it is understood that in other types of motor, tooth yoke separate structure stator is applicable, even if stator tooth
21 quantity is not four, or the quantity more than one of stator yoke 22, the connection member can be also set.Specifically, it is right
In alternating current generator, the quantity of stator tooth 21 must be even number；For direct current generator, the quantity of stator tooth can be odd number, also may be used
To be even number.
As shown in figure 5, connection sheet 3 includes the middle pole shoe bore 311 set and the fixed part 32 for being fixed on stator yoke 22,
The diameter of pole shoe bore 311 is equal to the track diameter of a circle that the pole shoe end 211 of four stator tooths 21 surrounds.Fixed part 32 is provided with determining
The swallow-tail form projection that sub- yoke portion 22 is fixed；The swallow-tail form projection of connection sheet 3 is consistent with the swallow-tail form projection shape of magnetic pole 212；
, it is understood that fixed part 32 can also set other structures to coordinate with stator yoke.
Specifically, connection sheet 3 and stator tooth 21 are molded by same punch press, same set of Dies ' Blanking, and
It is arranged on mould：After the completion of connection sheet 3 and stator tooth 21 are punched, position does not change, and directly laminates, and ensure that stator well
The circularity for the locus circle that the pole shoe of teeth portion surrounds；Even if after the completion of coiling, being pressed into stator yoke has rigging error, but it is fixed
The locus circle that the pole shoe of sub- teeth portion surrounds will not change, and ensure that motor performance, and because have outside use around mode higher
Production efficiency.
In actual production, the blanking die of connection sheet 3 and stator tooth 21 is the progressive die automatically controlled, the progressive die
Station is set by the punching program of stator tooth 21, and from fig. 5, it can be seen that the punching program of connection sheet 3 is fewer than stator tooth 21
Whole block material is cut to 4 pieces of cut off operation, therefore cut off operation is placed on punching program last station；Connect in punching
During contact pin 3, by control program, cut off operation is arranged to be failure to actuate；In order to ensure to laminate precision, punching program be completely by
Order punching is laminated, if for example, the thickness that laminates of stator tooth 21 is 50 silicon steel sheets, each 2 silicon steel of upper and lower connection sheet
Piece, the first step for being punched program are to be punched out the lamination of the lower section connection sheet of two panels stator tooth 21, and second step is to be punched out 50 to determine
The lamination of sub- tooth 21, the 3rd step are punched out the lamination of the top connection sheet of two panels stator tooth 21, are not changed in three position finally
In the case of directly laminate, complete the making of stator teeth.
Further, the material of connection sheet 3 is consistent with the material of stator tooth 21.This way it is possible to avoid to motor-field
Interference, that is, motor performance will not be had an impact.
The stator also includes the Insulating frame (not shown) for being installed on stator teeth 20, and connection sheet 3 is provided with described in limitation
The lug boss 33 of Insulating frame position, specifically, lug boss 33 is equipped with the both sides of fixed part 32 of connection sheet 3.Usually, exist
, it is necessary to install the Insulating frame on stator core before coiling, for separating stator core and stator winding, to ensure stator
Iron core will not turn into electrical body；The stator core is the important component for forming motor magnetic flux loop and fixed stator winding,
In the embodiment of the present invention, the stator core includes stator teeth 20 and stator yoke 22, and the stator winding refers to be wound on institute
State the copper cash above stator core, the copper cash produces motor-field after being powered, the stator winding typically by multiple coils or
Coil group is formed.
The Insulating frame is typically mounted on stator tooth 21, more firm to fix Insulating frame, in the present embodiment
Lug boss 33 is set to position the Insulating frame in connection sheet 3.Specifically, lug boss 33 is a right angle projection,
Respectively there are a right angle projection, a total of eight right angle projections in the both sides of the fixed part 32 of connection sheet 3；, it is understood that eight
Right angle projection is not essential, because even an only right angle projection, it helps more preferable fixed insulation framework, quantity are got over
More, effect is better, but manufacture difficulty increase, and it is to balance the result of effect and cost to set eight right angle projections；Certainly, it is convex
It can also be other shapes of limiting structure to play portion 33.
Fig. 6 is that stator tooth is not installing the schematic diagram of connection sheet in the stator of the embodiment of the present invention one, as shown in fig. 6, four
The circumference of stator tooth 21 between be separated with default gap A, such as gap A is 0.5~2.0mm, and gap A presence can be with
Reduce the leakage reactance of motor, so as to improve the starting torque of motor and torque capacity, this is also that four stator tooths 21 need to lead to
The reason for crossing connection sheet 3 to be fixed as one, and itself can not interfixing.
Further, as with the material of stator tooth being due to the material of connection sheet 3, and the one of motor magnetic flux loop
Part, therefore be a part for stator core；That is the stator of same size, have connection sheet 3 and does not have connection sheet 3, including even
The thickness of whole stator core including contact pin 3 is consistent；But due to 3 A very close to each other of connection sheet, so the leakage reactance of motor is omited
Micro- increase, but, the thickness of connection sheet 3 are much smaller than the thickness of whole stator teeth, therefore this influence is not too big, and being can be with
Receive；In addition, the lug boss 33 in connection sheet 3, only increases the width of stator teeth pole shoe, does not influence flux circuit
Width, motor performance is not influenceed.
Fig. 7 is the schematic diagram that stator tooth installs connection sheet in the stator of the embodiment of the present invention one, as shown in fig. 7, connection sheet 3 is divided
Do not installed above and below four stator tooths 21, this is fixed more firm；, it is understood that connection sheet 3 can also
Only install above or below four stator tooths 21, four stator tooths 21 can be also integrally fixed, but may not be as above
All install firm lower section；Specifically, connection sheet and stator tooth are fixed by riveting process, that is, with stator tooth punching
Between the fixing means that laminates be consistent；It is of course also possible to use the method that other stator punchings are fixed, is such as welded.
Embodiment two
The embodiment of the present invention additionally provides a kind of motor, and the motor includes a kind of stator.The composition structure of the stator,
The principle of work and power of annexation and each part between each part and any one stator structure recited above
It is identical, repeat no more.
Embodiment three
The embodiment of the present invention additionally provides a kind of household electrical appliance, and the household appliance machine includes a kind of motor, the motor
For the motor in embodiment two.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
All any modification, equivalent and improvement made within the spirit and principles in the present invention etc., it should be included in the protection of the present invention
Within the scope of.
Claims (11)
1. a kind of stator, the stator is tooth yoke separate structure, including coordinates the stator teeth being fixed together and stator yoke
Portion；The stator teeth includes the multiple stator tooths circumferentially arranged, and each described stator tooth includes the pole with rotor engagement
Boots end and the magnetic pole fixed with the stator yoke, it is characterised in that
The stator teeth also includes the connection member that the multiple stator tooths circumferentially arranged are integrally fixed.
2. stator according to claim 1, it is characterised in that the connection member be arranged at circumferentially arrange it is multiple
The connection sheet of the stator tooth above and or below, the connection sheet connect respectively each stator tooth upper surface and/or
Lower surface.
3. stator according to claim 2, it is characterised in that the connection sheet includes the middle pole shoe bore set and fixation
In the fixed part of the stator yoke；The diameter of the pole shoe bore is equal to the track diameter of a circle that the pole shoe end surrounds.
4. stator according to claim 3, it is characterised in that the fixed part of the connection sheet is provided with and the stator yoke
Fixed default fit structure.
5. stator according to claim 4, it is characterised in that the shape one of the default fit structure and the magnetic pole
Cause.
6. according to the stator described in claim 3~5 any one, it is characterised in that the material of the connection sheet and described fixed
The material of sub- tooth is consistent.
7. according to the stator described in claim 3~5 any one, it is characterised in that the stator is also described including being installed on
The Insulating frame of stator teeth, the connection sheet are provided with the lug boss of limitation Insulating frame position.
8. stator according to claim 7, it is characterised in that the lug boss comprises at least a right angle projection.
9. stator according to claim 1, it is characterised in that the multiple stator tooths circumferentially arranged stay each other
There is 0.5-2.0mm gap.
10. a kind of motor, it is characterised in that the motor includes the stator described in claim 1~9 any one.
11. a kind of household electrical appliance, it is characterised in that the household electrical appliance include the motor described in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209439.5A CN107769404A (en) | 2017-11-27 | 2017-11-27 | A kind of stator, motor and household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711209439.5A CN107769404A (en) | 2017-11-27 | 2017-11-27 | A kind of stator, motor and household electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107769404A true CN107769404A (en) | 2018-03-06 |
Family
ID=61277069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711209439.5A Pending CN107769404A (en) | 2017-11-27 | 2017-11-27 | A kind of stator, motor and household electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107769404A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585361A (en) * | 2020-05-29 | 2020-08-25 | 无锡小天鹅电器有限公司 | Stator and motor with same |
| CN112421906A (en) * | 2020-12-18 | 2021-02-26 | 山东理工大学 | Production method of unilateral retaining modular driving motor rotor with bat-shaped groove |
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| US20160111921A1 (en) * | 2013-05-14 | 2016-04-21 | Sagem Defense Securite | Stator Comprising a Split Core and Method for Producing Such a Stator |
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|---|---|---|---|---|
| US4147946A (en) * | 1977-05-31 | 1979-04-03 | Sundstrand Corporation | Rotor structure for an electric machine |
| JPS62196034A (en) * | 1986-02-24 | 1987-08-29 | Toshiba Corp | Stator of motor |
| DE19652795A1 (en) * | 1996-12-18 | 1998-06-25 | Siemens Ag | Stator for electrodynamic machines and process for their manufacture |
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| US20160111921A1 (en) * | 2013-05-14 | 2016-04-21 | Sagem Defense Securite | Stator Comprising a Split Core and Method for Producing Such a Stator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585361A (en) * | 2020-05-29 | 2020-08-25 | 无锡小天鹅电器有限公司 | Stator and motor with same |
| CN112421906A (en) * | 2020-12-18 | 2021-02-26 | 山东理工大学 | Production method of unilateral retaining modular driving motor rotor with bat-shaped groove |
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