CN107317408B - Stator core, electric machine and household electrical appliance - Google Patents
Stator core, electric machine and household electrical appliance Download PDFInfo
- Publication number
- CN107317408B CN107317408B CN201710765789.3A CN201710765789A CN107317408B CN 107317408 B CN107317408 B CN 107317408B CN 201710765789 A CN201710765789 A CN 201710765789A CN 107317408 B CN107317408 B CN 107317408B
- Authority
- CN
- China
- Prior art keywords
- linking arm
- yoke portion
- stator core
- arm
- arms
- 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.)
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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
- H02K1/141—Stator cores with salient poles consisting of C-shaped cores
-
- 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
- H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention relates to technical field of motors, disclose a kind of stator core, electric machine and household electrical appliance, the stator core includes yoke portion and two arms being oppositely arranged, the arm include linking arm and be set to the linking arm end pole pawl, the pole pawl on two arms is opposite to each other to form the space for accommodating rotor, two arms pass through the corresponding linking arm respectively and are connected to the yoke portion, and are connected such that the yoke portion is located within the scope of the development length of the linking arm.Present invention utilizes the spaces of the end of coil windings, under conditions of within the scope of the development length that yoke portion is located at linking arm, realize the connection between yoke portion and linking arm, this set not will increase the length of motor, keep the structure of motor more compact.
Description
Technical field
The present invention relates to technical field of motors, more particularly to a kind of stator core, electric machine and household electrical appliance.
Background technique
Traditional electric machine is usually made of stator core, winding and rotor, as illustrated in fig. 1 and 2, stator core
Be generally shaped like U-shaped comprising yoke portion 1 and two arms 2 being provided separately, the yoke portion 1 is provided with dovetail groove 1a, described
Arm 2 is provided with dovetails 2a, and the program is carried out yoke portion 1 and arm 2 by the cooperation of the dovetail groove 1a and dovetails 2a
Connection, the connection cooperation are oriented parallel to 2 place plane of arm, this length that will result in stator increases, and then, make
The length of motor increases.
Summary of the invention
The purpose of the invention is to overcome the yoke portion of stator of the existing technology that can make the length of motor is increased to ask
Topic.
To achieve the goals above, one aspect of the present invention provides a kind of stator core, including yoke portion and be oppositely arranged two
A arm, the arm include linking arm and be set to the linking arm end pole pawl, the institute on two arms
Pole pawl is stated opposite to each other to form the space for accommodating rotor, two arms pass through the corresponding linking arm respectively and connect
It is connected to the yoke portion, and is connected such that the yoke portion is located within the scope of the development length of the linking arm.
Preferably, the yoke portion includes that yoke portion ontology is connected with the yoke portion extended from the yoke portion ontology towards the linking arm
Protrusion, the connection bump are connected to the linking arm and are connected such that yoke portion ontology is bonded the side table of the linking arm
Face.
Preferably, the connection bump and each cooperation plane of the linking arm are each perpendicular to where two arms
Plane.
Preferably, the connection bump is formed in the both ends of yoke portion ontology, be provided on the linking arm with it is described
The groove that connection bump matches, the yoke portion is by the connection bump plug connection in the groove of the linking arm
In.
Preferably, which includes two yoke portions, which connects along mutual direction inserting is opposite in
It is connected in the groove of the linking arm.
Preferably, the both ends of yoke portion ontology are each provided with two connection bumps being spaced each other, every one end
Be formed as being clamped to the card slot of the linking arm between described two connection bumps in portion.
Preferably, pole pawl side relative to each other is formed as intrados, and starting slot, institute are provided on the intrados
State the symmetrical center line setting that starting slot deviates the intrados.
Preferably, the yoke portion and/or the arm are overrided to form by several punchings, the punching with a thickness of
0.2mm~1mm.
Second aspect of the present invention provides a kind of electric machine, including stator core, is wound on the stator core
Coil windings and rotor, the stator core be such as above-mentioned stator core, the rotor be set to the pole claw type at
Space in, the coil winding wound is on the linking arm of the stator core.
Third aspect present invention provides a kind of household electrical appliance, and the electric household appliance is just like above-mentioned electric machine.
Through the above technical solutions, being located at linking arm in yoke portion present invention utilizes the space of the end of coil windings
Under conditions of within the scope of development length, the connection between yoke portion and linking arm is realized, this set not will increase the length of motor,
Keep the structure of motor more compact.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view of stator core in the prior art；
Fig. 2 is the decomposition texture schematic diagram of the stator core in Fig. 1；
Fig. 3 is the stator core of the first embodiment of the invention and the structural schematic diagram of coil windings；
Fig. 4 is the structural schematic diagram of the stator core of the first embodiment of the invention；
Fig. 5 is the explosive view of the stator core of the first embodiment of the invention；
Fig. 6 is the structural schematic diagram of the arm of the first embodiment of the invention；
Fig. 7 is the explosive view of the stator core of second of embodiment of the invention；
Fig. 8 is the structural schematic diagram of the stator core of the third embodiment of the invention；
Fig. 9 is the explosive view of the stator core of the third embodiment of the invention；
Figure 10 is the structural schematic diagram of the arm of the 4th kind of embodiment of the invention；
Figure 11 is the structural schematic diagram in the yoke portion of the 4th kind of embodiment of the invention.
Description of symbols
1 yoke portion, 2 arm
1a dovetail groove 2a dovetails
11 yoke portion ontology, 12 connection bump
13 card slot, 21 linking arm
211 groove, 22 pole pawl
221 intrados 222 start slot
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, term " first ", " second " ... wait and be only used for for different technologies feature being distinguished, not
For limiting the weight primary and secondary of technical characteristic, in case of need, these technical characteristics can achieve the effect that essentially identical.
Referring to shown in Fig. 3 to Figure 11, present invention firstly provides a kind of stator core, including yoke portion 1 and be oppositely arranged two
A arm 2, arm 2 include linking arm 21 and be set to linking arm 21 end pole pawl 22, the pole pawl 22 on two arms 2
Opposite to each other to form the space for accommodating rotor, two arms 2 are connected to yoke portion 1 by corresponding linking arm 21 respectively,
And it is connected such that the yoke portion 1 is located within the scope of the development length of linking arm 21.
It should be noted that the coil windings 3 of the application are wound on linking arm 21, which can be in its width
With certain space is occupied on the direction of height respectively, the occupancy in the space is for herein described electric machine
Necessary, therefore, the application can be located at prolonging for linking arm 21 in yoke portion by utilizing the occupied space of coil windings 2
Under conditions of within the scope of elongation, the connection between yoke portion 1 and linking arm 21 is realized.
Through the above technical solutions, present invention utilizes the space of the end of coil windings 2 (height space and/or width
Space), under conditions of can be within the scope of the development length that yoke portion 1 is located at linking arm 21, realize between yoke portion 1 and linking arm 21
Connection, avoid yoke portion 1 increase motor length, keep the structure of motor more compact.
Hereinafter reference will be made to the drawings, and various embodiments are described in detail, either individually or in combination as of the invention excellent
Select the specific illustration of embodiment.Since there are more the same or similar structure and connection relationships between different embodiments, and have
Have similar working principle, therefore the description of its details will be omitted in some embodiments, and be referred to other embodiments into
Row understands.On the basis of following embodiments, it can spread out know more similar or expansion embodiments with stretching, and there is phase
Same working principle belongs to design and protection model of the invention as long as it falls into appended claim limited range
It encloses.
With reference to shown in Fig. 3 to Fig. 6, the first embodiment according to the present invention, yoke portion 1 may include yoke portion ontology 11 and from
The connection bump 12 that the yoke portion ontology 11 extends towards linking arm 21, the connection bump 12 are connected to linking arm 21 and are connected as making
Obtain the side surface that yoke portion ontology 11 is fitted and connected arm 21.Specifically, the yoke portion 1 can be by connection bump 12 thereon from each
Direction is connected with linking arm 21, which not necessarily can be using the space of the end of coil windings 2, as long as guaranteeing yoke portion 1 even
Connect expanded range of the arm 21 without departing from linking arm 21.For example, two arms 2 respectively have a linking arm 21, yoke portion 1 can be with
It is connected respectively with the side toward each other of two linking arms 21 by connection bump 12, and then, which is not utilizing line
It can also guarantee that portion exceeds the expanded range of linking arm 21 under conditions of circle winding 3.
It can in order to further ensure the stability that yoke portion 1 is connect with linking arm 21 (or arm 2) according to the present embodiment
So that connection bump 12 and each cooperation plane of linking arm 21 are each perpendicular to the plane where two arms 2.Specifically, yoke portion
1 is utilized the space of the end of coil windings 3, the connection bump in yoke portion 1 along 12 perpendicular to two 2 place planes of arm direction
It is fitted to each other and connect with linking arm 21, and then, which can prevent two arms 2 toward and away from transporting each other
It is dynamic.
Based on above scheme, connection bump 12 can be formed in the both ends of yoke portion ontology 11, specifically, yoke portion ontology 11
Both ends are each provided with a connection bump 12, and each arm 2 has a linking arm 21, and linking arm 21 has two, every connection
The end far from pole pawl 22 thereon of arm 21 is provided with and is correspondingly connected with raised 12 grooves 211 matched, and yoke portion 1 passes through
12 plug connection of connection bump is in the groove 211 on linking arm 21.In order to further ensure yoke portion 1 and linking arm 21 (or arm
Portion 2) connection stability, connection bump 12 and with groove 211 be preferably rectangle, and then, which can keep away
Exempt from two arms 2 and generates relative movement in the plane where two arms portion 2.
Refering to what is shown in Fig. 7, second of embodiment according to the present invention, in addition to structure possessed by the first embodiment,
In the present embodiment, stator core includes two yoke portions 1, and two yoke portions 1 are connected to linking arm along mutual direction inserting is opposite in
In 21 groove 211.This set can be further ensured that the stability that yoke portion 1 is connect with linking arm 21 (or arm 2), two
A yoke portion 1 can be avoided two arms 2 and relatively move in the direction perpendicular to two 2 place planes of arm.
With reference to shown in Fig. 8 to Fig. 9, the third embodiment according to the present invention, yoke portion 1 includes yoke portion ontology 11 and from the yoke
The connection bump 12 of portion's ontology 11 extended towards linking arm 21, the connection bump 12 are connected to linking arm 21 and are connected such that
Yoke portion ontology 11 is fitted and connected the side surface of arm 21.It is spaced each other specifically, the both ends of yoke portion ontology 11 are each provided with two
Connection bump 12, be formed as being clamped to the card slot 13 of linking arm 21 between two connection bumps 12 of every one end.
According to the present embodiment, connection bump 12 can be parallel to two arms, 2 place plane, and two arms 2 respectively have one
Linking arm 21, yoke portion 1 are connected with the side toward each other of two linking arms 21 respectively by card slot 13.This set can
Two arms 2 are avoided to move towards one another.
According to the present embodiment, connection bump 12 can pass through 13 edge of card slot perpendicular to two 2 place planes of arm, yoke portion 1
It is clamped perpendicular to the direction of two 2 place planes of arm to linking arm 21.This set can be avoided two arms 2 towards or
Movement away from each other.
With reference to figures 10 to shown in Figure 11, the 4th kind of embodiment according to the present invention, yoke portion 1 and/or arm 2 are by several punchings
Piece is overrided to form, the punching with a thickness of 0.2mm~1mm.
Refering to what is shown in Fig. 6, the side relative to each other of pole pawl 22 is formed as interior in a specific embodiment of the invention
Cambered surface 221 is provided with starting slot 222 on intrados 221, in order to avoid dead-centre position, it is ensured that motor can when being once again powered up
Smoothly starting, starting slot 222 deviate the symmetrical center line setting of intrados 221, and two starting slots 222 differ 180 in the circumferential
Degree.
In addition, the second aspect of the present invention also provides a kind of electric machine, including stator core, it is wound in the stator
Coil windings 3 and rotor on iron core, the stator core are the stator core as described in above-described embodiment, and rotor is set to pole
In the space that pawl 22 is formed, coil windings 3 are wound on the linking arm 21 of stator core.The third aspect of the present invention also provides one
Kind household electrical appliance, the electric household appliance is just like above-mentioned electric machine.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this
, can be with various simple variants of the technical solution of the present invention are made in the range of the technology design of invention, including each particular technique
Feature is combined in any suitable manner, and in order to avoid unnecessary repetition, the present invention is to various combinations of possible ways
No further explanation will be given.But it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to the present invention
Protection scope.
Claims (8)
1. a kind of stator core, including yoke portion (1) and two arms (2) being oppositely arranged, the arm (2) includes linking arm
(21) and be set to the linking arm (21) end pole pawl (22), the pole pawl (22) on two arms (2)
Opposite to each other to form the space for accommodating rotor, which is characterized in that two arms (2) are respectively by corresponding described
Linking arm (21) is connected to the yoke portion (1), and is connected such that the yoke portion (1) is located at the development length of the linking arm (21)
In range；
The yoke portion (1) includes yoke portion ontology (11) and the connection that extends from the yoke portion ontology (11) towards the linking arm (21)
Raised (12), the connection bump (12) are connected to the linking arm (21) and are connected such that yoke portion ontology (11) is bonded institute
State the side surface of linking arm (21)；
Each cooperation plane of the connection bump (12) and the linking arm (21) is each perpendicular to where two arms (2)
Plane.
2. stator core according to claim 1, which is characterized in that the connection bump (12) is formed in yoke portion sheet
The both ends of body (11) are provided with the groove (211) matched with the connection bump (12), the yoke on the linking arm (21)
Portion (1) is by the connection bump (12) plug connection in the groove (211) of the linking arm (21).
3. stator core according to claim 2, which is characterized in that the stator core includes two yoke portions (1), should
Two yoke portions (1) are connected in the groove (211) of the linking arm (21) along mutual direction inserting is opposite in.
4. stator core according to claim 1, which is characterized in that the both ends of yoke portion ontology (11) are each provided with
Two connection bumps (12) being spaced each other are formed as clamping between described two connection bumps (12) of every one end extremely
The card slot (13) of the linking arm (21).
5. stator core described in any one of -4 according to claim 1, which is characterized in that the pole pawl (22) is relative to each other
Side is formed as intrados (221), and starting slot (222) is provided on the intrados (221), and the starting slot (222) is deviateed
The symmetrical center line of the intrados (221) is arranged.
6. stator core described in any one of -4 according to claim 1, which is characterized in that the yoke portion (1) and/or the arm
Portion (2) is overrided to form by several punchings, the punching with a thickness of 0.2mm~1mm.
7. a kind of electric machine including stator core, the coil windings being wound on the stator core (3) and turns
Son, which is characterized in that the stator core is such as stator core of any of claims 1-6, the rotor setting
In in the space that the pole pawl (22) is formed, the coil windings (3) are wound in the linking arm (21) of the stator core
On.
8. a kind of household electrical appliance, which is characterized in that the with good grounds electric machine as claimed in claim 7 of the electric household appliance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765789.3A CN107317408B (en) | 2017-08-30 | 2017-08-30 | Stator core, electric machine and household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765789.3A CN107317408B (en) | 2017-08-30 | 2017-08-30 | Stator core, electric machine and household electrical appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107317408A CN107317408A (en) | 2017-11-03 |
| CN107317408B true CN107317408B (en) | 2019-08-13 |
Family
ID=60176616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710765789.3A Active CN107317408B (en) | 2017-08-30 | 2017-08-30 | Stator core, electric machine and household electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107317408B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2932883B2 (en) * | 1993-02-22 | 1999-08-09 | 三菱電機株式会社 | Stator core for motor and method of manufacturing stator core for motor |
| JP4085207B2 (en) * | 1997-05-13 | 2008-05-14 | 株式会社安川電機 | Motor stator |
| EP2081276A1 (en) * | 2008-01-21 | 2009-07-22 | Marco Cipriani | Electro-magnetical device with reversible generator-motor operation |
| US20140132106A1 (en) * | 2012-11-09 | 2014-05-15 | Nidec Motor Corporation | Motor having bridged stator with search coil |
| CN106487190B (en) * | 2015-09-01 | 2019-09-17 | 德昌电机(深圳)有限公司 | Brushless single phase motor and electric tool |
-
2017
- 2017-08-30 CN CN201710765789.3A patent/CN107317408B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107317408A (en) | 2017-11-03 |
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