CN107317408A - Stator core, electric machine and household electrical appliance - Google Patents
Stator core, electric machine and household electrical appliance Download PDFInfo
- Publication number
- CN107317408A CN107317408A CN201710765789.3A CN201710765789A CN107317408A CN 107317408 A CN107317408 A CN 107317408A CN 201710765789 A CN201710765789 A CN 201710765789A CN 107317408 A CN107317408 A CN 107317408A
- Authority
- CN
- China
- Prior art keywords
- linking arm
- stator core
- yoke portion
- 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.)
- Granted
Links
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
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 includes linking arm and is arranged at the pole pawl of the end of the linking arm, the pole pawl on two arms is used for the space for accommodating rotor with formation toward each other, two arms are connected to the yoke portion by the corresponding linking arm respectively, and are connected such that the yoke portion is located in the range of the development length of the linking arm.Present invention utilizes the space of the end of coil windings, under conditions of being located in yoke portion in the range of the development length of linking arm, the connection between yoke portion and linking arm is realized, this set will not increase the length of motor, make the structure of motor compacter.
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 technology
Traditional electric machine is generally made up of stator core, winding and rotor, as illustrated in fig. 1 and 2, stator core
Be generally shaped like U-shaped, it includes yoke portion 1 and two arms 2 being provided separately, and 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 dovetail groove 1a and dovetails 2a cooperation
Connection, described connection, which coordinates, is oriented parallel to the place plane of arm 2, and this length that will result in stator increases, and then, make
The length increase of motor.
The content of the invention
It can make the length of motor is increased to ask the invention aims to the yoke portion for the stator for overcoming prior art presence
Topic.
To achieve these goals, one aspect of the present invention provides a kind of stator core, including yoke portion and two be oppositely arranged
Individual arm, the institute that the arm includes linking arm and is arranged on the pole pawl of the end of the linking arm, two arms
Pole pawl is stated toward each other to form the space for being used for accommodating rotor, two arms are connected by the corresponding linking arm respectively
The yoke portion is connected to, and is connected such that the yoke portion is located in the range of the development length of the linking arm.
Preferably, the yoke portion includes yoke portion body and the yoke portion extended from the yoke portion body towards the linking arm connection
Projection, the connection bump is connected to the linking arm and is connected such that the side table of the yoke portion body laminating 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 be formed on the two ends of yoke portion body, the linking arm be provided with it is described
The groove that connection bump is engaged, the yoke portion is by the connection bump socket connection in the groove of the linking arm
In.
Preferably, the stator core includes two yoke portions, and two yoke portions connect along mutual direction inserting is opposite in
It is connected in the groove of the linking arm.
Preferably, the both ends of yoke portion body are each provided with two connection bumps being spaced, per one end
Be formed as clamping between described two connection bumps in portion to the neck of the linking arm.
Preferably, pole pawl side relative to each other is formed as being provided with startup groove, institute on intrados, the intrados
State and start the symmetrical center line setting that groove deviates the intrados.
Preferably, the yoke portion and/or the arm are overrided to form by several punchings, and the thickness of the punching is
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 stator core described above, the rotor be arranged at the pole claw type into
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 has electric machine described above.
By above-mentioned technical proposal, present invention utilizes the space of the end of coil windings, it is located at linking arm in yoke portion
Under conditions of in the range of development length, the connection between yoke portion and linking arm is realized, this set will not increase the length of motor,
Make the structure of motor compacter.
Brief description of the drawings
Fig. 1 is a kind of main structure diagram 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 and the structural representation of coil windings of the first embodiment of the present invention；
Fig. 4 is the structural representation of the stator core of the first embodiment of the present invention；
Fig. 5 is the explosive view of the stator core of the first embodiment of the present invention；
Fig. 6 is the structural representation of the arm of the first embodiment of the present invention；
Fig. 7 is the explosive view of the stator core of second of embodiment of the present invention；
Fig. 8 is the structural representation of the stator core of the third embodiment of the present invention；
Fig. 9 is the explosive view of the stator core of the third embodiment of the present invention；
Figure 10 is the structural representation of the arm of the 4th kind of embodiment of the present invention；
Figure 11 is the structural representation in the yoke portion of the 4th kind of embodiment of the present invention.
Description of reference numerals
The arm of 1 yoke portion 2
1a dovetail groove 2a dovetails
The connection bump of 11 yoke portion body 12
The linking arm of 13 neck 21
The pole pawl of 211 groove 22
221 intrados 222 start groove
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
In the present invention, term " first ", " second " ... wait and be only used for different technologies feature being distinguished, not
Weight primary and secondary for limiting technical characteristic, in case of need, these technical characteristics can achieve the effect that essentially identical.
Reference picture 3 is to shown in Figure 11, and present invention firstly provides a kind of stator core, including yoke portion 1 and two be oppositely arranged
Individual arm 2, the pole pawl 22 that arm 2 includes linking arm 21 and is arranged on the pole pawl 22 of the end of linking arm 21, two arms 2
Toward each other to form the space for being used 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 in the range 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, the coil windings 2 can be in its width
With certain space is taken 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 by using the space shared by the coil windings 2 in yoke portion
Under conditions of in the range of elongation, the connection between yoke portion 1 and linking arm 21 is realized.
By above-mentioned technical proposal, present invention utilizes the space of the end of coil windings 2 (height space and/or width
Space), under conditions of being located in yoke portion 1 in the range of the development length of linking arm 21, realize between yoke portion 1 and linking arm 21
Connection, it is to avoid yoke portion 1 increases the length of motor, makes the structure of motor compacter.
Hereinafter with reference to accompanying drawing, various embodiments are described in detail, using either individually or in combination as of the invention excellent
Select the specific illustration of embodiment.Due to there is more same or analogous structure and annexation between not be the same as Example, and have
There are similar operation principle, therefore the description that its details will be omitted in certain embodiments, it is possible to enter with reference to other embodiment
Row understands.On the basis of following embodiments, it can spread out know more similar or expansion embodiment with stretching, and with phase
Same operation principle, as long as it falls into following claims limited range, belongs to design and the protection model of the present invention
Enclose.
With reference to shown in Fig. 3 to Fig. 6, according to the present invention the first embodiment, yoke portion 1 can include yoke portion body 11 and from
The connection bump 12 that the yoke portion body 11 extends towards linking arm 21, the connection bump 12 is connected to linking arm 21 and is connected as making
Obtain the side surface that yoke portion body 11 is fitted and connected arm 21.Specifically, the yoke portion 1 can pass through connection bump 12 from each thereon
Direction is connected with linking arm 21, and the yoke portion 1 can not necessarily utilize the space of the end of coil windings 2, as long as ensureing yoke portion 1 even
Connect expanded range of the arm 21 without departing from linking arm 21.For example, two arms 2 respectively have linking arm 21, yoke portion 1 can be with
Side toward each other by connection bump 12 respectively with two linking arms 21 is connected, and then, the yoke portion 1 is not utilizing line
Also the portion of ensure that exceeds the expanded range of linking arm 21 under conditions of circle winding 3.
, can in order to be further ensured that stability that yoke portion 1 is connected 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 make use of the space of the end of coil windings 3, and the connection bump in yoke portion 1 is along 12 perpendicular to the direction of two place planes of arm 2
It is fitted to each other and is connected with linking arm 21, and then, the connection bump 12 can prevent two arms 2 toward and away from transporting each other
It is dynamic.
Based on such scheme, connection bump 12 can be formed at the two ends of yoke portion body 11, specifically, yoke portion body 11
Two 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 away from pole pawl 22 thereon of arm 21 is provided with the groove 211 being engaged with corresponding connection bump 12, and yoke portion 1 passes through
The socket connection of connection bump 12 is in the groove 211 on linking arm 21.In order to be further ensured that yoke portion 1 and linking arm 21 (or arm
Portion 2) connection stability, connection bump 12 and preferably rectangular with groove 211, so, the connection bump 12 can be kept away
Exempt from two arms 2 and relative movement is produced in the plane where two arms portion 2.
With reference to shown in Fig. 7, according to second of embodiment of the present invention, except the structure that the first embodiment has,
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 connected with linking arm 21 (or arm 2), two
Individual yoke portion 1 can avoid two arms 2 from being relatively moved on the direction perpendicular to two place planes of arm 2.
With reference to shown in Fig. 8 to Fig. 9, according to the third embodiment of the present invention, yoke portion 1 includes yoke portion body 11 and from the yoke
The connection bump 12 extended towards linking arm 21 of portion's body 11, the connection bump 12 is connected to linking arm 21 and is connected such that
Yoke portion body 11 is fitted and connected the side surface of arm 21.It is spaced specifically, the both ends of yoke portion body 11 are each provided with two
Connection bump 12, per one end two connection bumps 12 between be formed as clamping to the neck 13 of linking arm 21.
According to the present embodiment, connection bump 12 can be parallel to two place planes of arm 2, and two arms 2 respectively have one
Bar linking arm 21, side toward each other of the yoke portion 1 by neck 13 respectively with two linking arms 21 is connected.This set can
Two arms 2 are avoided to move towards one another.
According to the present embodiment, connection bump 12 can be perpendicular to two place planes of arm 2, and yoke portion 1 passes through the edge of neck 13
On direction clamping to the linking arm 21 of two place planes of arm 2.This set can avoid two arms 2 towards or
Motion away from each other.
With reference to figures 10 to shown in Figure 11, according to the 4th kind of embodiment of the present invention, yoke portion 1 and/or arm 2 are rushed by several
Piece is overrided to form, and the thickness of the punching is 0.2mm~1mm.
With reference to shown in Fig. 6, in the specific embodiment of the present invention, the side relative to each other of pole pawl 22 is formed as interior
Startup groove 222 is provided with cambered surface 221, intrados 221, in order to avoid dead-centre position, it is ensured that motor can when being once again powered up
Smoothly start, start the symmetrical center line setting that groove 222 deviates intrados 221, two start groove 222 and 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-mentioned embodiment, and rotor is arranged at pole
In the space of the formation of pawl 22, coil windings 3 are wound on the linking arm 21 of stator core.The third aspect of the present invention also provides one
Household electrical appliance are planted, the electric household appliance has electric machine described above.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited thereto.At this
In the range of the technology design of invention, a variety of simple variants, including each particular technique can be carried out to technical scheme
Feature is combined in any suitable manner, and in order to avoid unnecessary repetition, the present invention is to various possible combinations
No longer separately illustrate.But these simple variants and combination should equally be considered as content disclosed in this invention, belong to the present invention
Protection domain.
Claims (10)
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 arranged at the linking arm (21) end pole pawl (22), the pole pawl (22) on two arms (2)
It is used for the space for accommodating rotor with formation toward each other, it is characterised 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 the range of.
2. stator core according to claim 1, it is characterised in that the yoke portion (1) include yoke portion body (11) and from
The connection bump (12) that the yoke portion body (11) extends towards the linking arm (21), the connection bump (12) is connected to the company
Connect arm (21) and be connected such that the side surface of yoke portion body (11) the laminating linking arm (21).
3. stator core according to claim 2, it is characterised in that the connection bump (12) and the linking arm (21)
Each coordinate plane to be each perpendicular to plane where two arms (2).
4. stator core according to claim 3, it is characterised in that the connection bump (12) is formed at yoke portion sheet
The groove (211) being engaged with the connection bump (12), the yoke are provided with the two ends of body (11), the linking arm (21)
Portion (1) is by the connection bump (12) socket connection in the groove (211) of the linking arm (21).
5. stator core according to claim 4, it is characterised 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.
6. stator core according to claim 2, it is characterised in that the both ends of yoke portion body (11) are each provided with
Be formed as clamping extremely between two connection bumps (12) for being spaced, described two connection bumps (12) per one end
The neck (13) of the linking arm (21).
7. the stator core according to any one of claim 1-6, it is characterised in that the pole pawl (22) is relative to each other
Side is formed as being provided with startup groove (222) on intrados (221), the intrados (221), and the startup groove (222) is deviateed
The symmetrical center line of the intrados (221) is set.
8. the stator core according to claim 1-6, it is characterised in that the yoke portion (1) and/or the arm (2) by
Several punchings are overrided to form, and the thickness of the punching is 0.2mm~1mm.
9. a kind of electric machine, including stator core, the coil windings (3) that are wound on the stator core and turn
Son, it is characterised in that the stator core is the stator core as any one of claim 1-8, the rotor is set
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.
10. a kind of household electrical appliance, it is characterised in that the electric machine described in the with good grounds claim 9 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 true CN107317408A (en) | 2017-11-03 |
| CN107317408B 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) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06245414A (en) * | 1993-02-22 | 1994-09-02 | Mitsubishi Electric Corp | Stator core for motor and manufacture thereof |
| JPH10322940A (en) * | 1997-05-13 | 1998-12-04 | Yaskawa Electric Corp | Motor stator |
| CN102047529A (en) * | 2008-01-21 | 2011-05-04 | Avio有限公司 | Electromagnetic device with reversible generator-motor operation |
| US20140132106A1 (en) * | 2012-11-09 | 2014-05-15 | Nidec Motor Corporation | Motor having bridged stator with search coil |
| CN106487184A (en) * | 2015-09-01 | 2017-03-08 | 德昌电机(深圳)有限公司 | Household electrical appliance, pump, electric machine and its stator core |
-
2017
- 2017-08-30 CN CN201710765789.3A patent/CN107317408B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06245414A (en) * | 1993-02-22 | 1994-09-02 | Mitsubishi Electric Corp | Stator core for motor and manufacture thereof |
| JPH10322940A (en) * | 1997-05-13 | 1998-12-04 | Yaskawa Electric Corp | Motor stator |
| CN102047529A (en) * | 2008-01-21 | 2011-05-04 | Avio有限公司 | Electromagnetic device with reversible generator-motor operation |
| US20140132106A1 (en) * | 2012-11-09 | 2014-05-15 | Nidec Motor Corporation | Motor having bridged stator with search coil |
| CN106487184A (en) * | 2015-09-01 | 2017-03-08 | 德昌电机(深圳)有限公司 | Household electrical appliance, pump, electric machine and its stator core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107317408B (en) | 2019-08-13 |
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