CN202524182U - Stator core, stator and motor - Google Patents
Stator core, stator and motor Download PDFInfo
- Publication number
- CN202524182U CN202524182U CN2012200894570U CN201220089457U CN202524182U CN 202524182 U CN202524182 U CN 202524182U CN 2012200894570 U CN2012200894570 U CN 2012200894570U CN 201220089457 U CN201220089457 U CN 201220089457U CN 202524182 U CN202524182 U CN 202524182U
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- stator core
- groove
- stator
- iron core
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Abstract
The utility model provides a stator core, a stator and a motor. The stator core has two semi-circle iron core blocks, wherein each iron core block has a plurality of teeth extending in an axial direction of the stator core, two end lines on a peripheral wall of each iron core block are respectively provided with a groove which dents inwards from the peripheral wall along the radial direction of the stator core, the stator core further comprises buckle pieces which are buckled on the grooves adjacent to the two iron core blocks, each buckle piece has a main body and two tenons which extend outwards from the same side of the main body, and each tenon is buckled in one groove. According to the stator core, the stator and the motor, production cost of the stator core can be reduced; connection between the iron core blocks is more secure; formation of a gap on the stator core can be avoided, and thereby deformation of an inner circle of the stator core can be avoided.
Description
Technical field
The utility model relates to machine field, especially relates to a kind of stator core that is put together by the iron core piece of two semi-annular shapes, the motor that has the stator of this stator core and have this stator.
Background technology
Motor is widely used in the various electric equipments of commercial production and life; Referring to Fig. 1; Existing plastic packaging motor has stator 11 and rotor 15, and stator 11 has stator core 12 and is wrapped in the coil 13 on the stator core 12, and stator 11 outer injection mouldings form plastic packaging shell 14.Rotor 15 is a cage rotor, and it has rotor core 16, and is cast with cast-in aluminum squirrel cage 17 at rotor core 16 top-pours.The middle part of rotor 15 is equipped with armature spindle 19, and armature spindle 19 usually and rotor 15 interference fit and rotates with the rotation of rotor 15, and armature spindle 19 is used for outside outputting power.
In order to ensure the fixed connection of two iron core pieces 21,26, with the welding of end line 23,28 joints, this need use special-purpose welding equipment usually, and needs special-purpose welding personnel to operate, and causes the production cost of stator core 12 higher.And the stator core 12 after the welding possibly form the slit at weld because of problems of welded quality, causes circle distortion in the stator core 12, influences the quality of stator core.
Certainly; More existing stator cores use the mode that dovetail groove and dovetail are set at the end line place to cooperate, but this mode need be when the silicon steel sheet punching press forms punching, and punching press forms dovetail groove and dovetail in the end of punching; Cause the waste of silicon steel sheet; And tend to after the amalgamation of iron core piece form bigger slit, also make the interior circle of stator core be out of shape, influence the quality of stator core in the junction of dovetail groove and dovetail.
Summary of the invention
The main purpose of the utility model provides that a kind of iron core piece is connected firmly and is difficult for producing the stator core in slit.
Another purpose of the utility model provides the higher stator of a kind of silicon steel sheet utilance.
A purpose again of the utility model provides the motor that a kind of iron core piece is connected firmly and can cause circle distortion in the stator.
For realizing the main purpose of the utility model; The stator core that the utility model provides comprises the iron core piece of two semi-annular shapes; Each iron core piece has a plurality of teeth that extend to the stator core axis direction; Wherein, two end line places of each iron core piece perisporium are provided with a groove that radially caves inward along stator core from perisporium respectively, and stator core also comprises the buckling piece that is fastened on the adjacent groove of two iron core pieces; Each buckling piece has outward extending two tenons of main body and autonomous agent the same side, and each tenon is fastened in the groove.
Visible by such scheme; Stator core is to realize being fixedly connected of two iron core pieces through the tenon on the buckling piece with the groove fit of iron core piece; This fixed form need not welded; Avoid the use of the welding equipment of specialty and by the operation of professional welding personnel, production cost is lower, and avoid welding the phenomenon that the back forms the slit.In addition, the iron core piece neither cooperate through the chase mortise on self end wall realizes each other fixing, improves the utilance of silicon steel sheet, also avoids occurring in iron core piece junction the phenomenon in slit.
A preferred scheme is that groove is the slot groove, and the root width of tenon is less than the maximum outside diameter of tenon.
This shows that the notch of groove is narrower, tenon is difficult for breaking away from groove after fastening to groove, guarantees that buckling piece can be fastened on the iron core piece securely.
Further scheme is that the spacing of two tenons of each buckling piece is less than the spacing of adjacent two grooves.
It is thus clear that the spacing of two tenons is slightly less than the spacing of adjacent two grooves, buckling piece can fasten two iron core pieces better like this, avoids on the face of two iron core piece butt joints, forming the slit, influences the quality of stator core.
Scheme further is that buckling piece is processed by metal material or macromolecular material.Because macromolecular material has good elasticity, can the tenon of buckling piece be fastened on the groove easily.And the metal material rigidity is better, connects more firm.
For realizing another purpose of the utility model; The stator that the utility model provides comprises stator core and is wrapped in the coil on the stator core; Stator core has the iron core piece of two semi-annular shapes, and each iron core piece has a plurality of teeth that extend to the stator core axis direction, wherein; Two end line places of each iron core piece perisporium are provided with a groove that radially caves inward along stator core from perisporium respectively; Stator core also comprises the buckling piece that is fastened on the adjacent groove of two iron core pieces, and each buckling piece has outward extending two tenons of main body and autonomous agent the same side, and each tenon is fastened in the groove.
Visible by such scheme, the iron core piece connects through buckling piece, avoids welding or dovetail groove or dovetail are set on end wall, thereby avoid on the interface of two iron core pieces, forming the slit, reduces the phenomenon of circle distortion in the stator core.And, owing to dovetail groove or dovetail need be set on end wall, reduce the waste of silicon steel sheet, improve the utilance of silicon steel sheet.
For realizing a purpose again of the utility model; The motor that the utility model provides comprises stator and rotor, and stator comprises stator core and be wrapped in the coil on the stator core that stator core has the iron core piece of two semi-annular shapes; Each iron core piece has a plurality of teeth that extend to the stator core axis direction; Wherein, two end line places of each iron core piece perisporium are provided with a groove that radially caves inward along stator core from perisporium respectively, and stator core also comprises the buckling piece that is fastened on the adjacent groove of two iron core pieces; Each buckling piece has outward extending two tenons of main body and autonomous agent the same side, and each tenon is fastened in the groove.
This shows; The iron core piece is fixedly connected through buckling piece, connects more firmly, and need not weld or is connected with dovetail through the dovetail groove that forms on iron core piece self end wall; Avoid between iron core piece end wall, forming the gap, guarantee that circle can not be out of shape in the stator.
Description of drawings
Fig. 1 be existing motor partly cut open figure.
Fig. 2 is the structure chart of existing stator core.
Fig. 3 is the structure chart of the utility model stator core embodiment.
Fig. 4 is the structure chart of iron core piece among the utility model stator core embodiment.
Fig. 5 is the partial enlarged drawing of the utility model stator core embodiment.
Fig. 6 is the local structure for amplifying exploded view of the utility model stator core embodiment.
Fig. 7 is the structure chart of another execution mode of buckling piece among the utility model stator core embodiment.
Fig. 8 is the buckling piece structure chart of an execution mode again among the utility model stator core embodiment.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Embodiment
The motor of present embodiment has stator and cage rotor, and stator has stator core and is wrapped in the coil on the stator core, and cage rotor is installed in the stator, and can rotate with respect to stator.Armature spindle is installed in the cage rotor, and rotates with the rotation of cage rotor, outwards outputting power.
Referring to Fig. 3, stator core has the iron core piece 30,40 of two semi-annular shapes, and each iron core piece 30,40 is overrided to form by the identical punching of multi-disc shape, and each sheet punching all has silicon steel sheet to be stamped to form.Iron core piece 30 has yoke portion 31, and yoke portion 31 is provided with a plurality of teeth 32, and each tooth 32 all extends towards the axis direction of stator core.
Referring to Fig. 4; The perisporium 33 of iron core piece 30 is the semi-circumference cylinder; End line 34,36 places of perisporium 33 are provided with a groove 35,37 that radially caves inward along stator core from perisporium 33 respectively; Groove 35,37 is the slot groove, and promptly the width of rebate of groove 35,37 is less than the maximum inner diameter of groove 35,37.In the present embodiment, the cross section of groove 35,37 is the circles that have breach, so the inner surface of groove 35,37 is smooth circular arc, and the length of groove 35,37 cross section breach is less than this circular diameter.
The structure of iron core piece 40 and iron core piece 30 are symmetrical set; Therefore iron core piece 40 also has yoke portion 41; Yoke portion 41 is provided with the tooth 42 that is provided with towards the stator core axis direction; End line 44,46 places at perisporium 43 also are provided with groove 45,47, and groove 45,47 all is radially to cave in to axis direction along stator core.
During the assembly unit stator core, with two iron core pieces 30,40 butt joint, form one circular, in order to ensure the fixed connection of two iron core pieces 30,40, fasten buckling piece 50,60 respectively at iron core piece 30,40 joints.
Referring to Fig. 5 and Fig. 6, buckling piece 50 has main body 51, and main body 51 has from outward extending two tenons 51,52 of same sidewall, and the root width of each tenon 51,52 is all less than its maximum outside diameter.In the present embodiment, the cross section of tenon 51,52 is roughly rounded, so the width of tenon 51,52 roots is less than the diameter of cross section.
During the amalgamation stator core; After 30,40 butt joints of iron core piece; The tenon 51,52 of buckling piece 50 is pressed into respectively in 30,40 two adjacent grooves of iron core piece from the side; Be groove 35 with groove 45 in, through the cooperating of tenon 51 and groove 35, tenon 52 and the location of realizing iron core piece 30,40 cooperating of groove 45.
Can be better that iron core piece 30,40 is fixing in order to ensure buckling piece 50, the spacing L1 of 50 two tenons of buckling piece 51,52 should be slightly less than the spacing L2 of groove 35,45, can avoid like this on interface, forming the slit after 30,40 amalgamations of iron core piece.
Identical ground; Buckling piece 60 also is fastened other a pair of adjacent groove 37,47; Through two buckling pieces 50,60 that two iron core pieces 30,40 are fixing like this, need not realize the fixing of two iron core pieces 30,40 through the mode of welding, reduce the production cost of stator core.And, the dovetail groove and the dovetail that also need not be provided for cooperatively interacting on the iron core piece 30,40, the utilization rate of raising silicon steel sheet.
Certainly, the main part of buckling piece not necessarily is arranged to square, can also be arranged to different shape; As shown in Figure 7, main body 71 inner side edges of buckling piece 70 are provided with two tenons 71,72, then are provided with square chamfering on the outer side edges; As shown in Figure 8; Main body 71 inner side edges of buckling piece 80 are provided with two tenons 81,82, and outer side edges then is provided with circular chamfering, and this does not influence the enforcement of the utility model.
After buckling piece 50,60 fastened to iron core piece 30,40, also need carry out injection moulding to stator core.Because groove 35,37,45,47 is the slot groove; And tenon 51, the 52 root width of buckling piece 50,60 are less than maximum outside diameter; Therefore buckling piece 50,60 is difficult for coming off from iron core piece 30,40; Be difficult on the stator core forming the slit, also just be difficult for causing the interior circle distortion of stator core, guarantee the quality of stator.
Certainly, the foregoing description only is the utility model preferred implementation, during the utility model practical application, more variation can also be arranged, and for example, groove can be arranged to ellipse or polygon, and correspondingly, groove also is arranged to corresponding shape; Perhaps, two tenon spacings on the same buckling piece are arranged to equate with adjacent two flute pitch that these change the purpose that also can realize the utility model.
It is emphasized that at last the utility model is not limited to above-mentioned execution mode, also should be included in the protection range of the utility model claim like the change of buckling piece body shape, the variations such as change of buckling piece manufacturing materials.
Claims (10)
1. stator core comprises
The iron core piece of two semi-annular shapes, each said iron core piece have a plurality of teeth that extend to said stator core axis direction;
It is characterized in that:
Two end line places of each said iron core piece perisporium are provided with a groove that radially caves inward along said stator core from said perisporium respectively;
Be fastened on the buckling piece on the adjacent said groove of two said iron core pieces, each said buckling piece have main body and from said main body the same side outward extending two tenons, each said tenon is fastened in the said groove.
2. stator core according to claim 1 is characterized in that:
Said groove is the slot groove, and the root width of said tenon is less than the maximum outside diameter of said tenon.
3. stator core according to claim 1 and 2 is characterized in that:
The spacing of two said tenons of each said buckling piece is less than the spacing of adjacent two said grooves.
4. stator core according to claim 1 and 2 is characterized in that:
Said buckling piece is processed by metal material or macromolecular material.
5. stator comprises
Stator core and be wrapped in the coil on the said stator core, said stator core has the iron core piece of two semi-annular shapes, and each said iron core piece has a plurality of teeth that extend to said stator core axis direction;
It is characterized in that:
Two end line places of each said iron core piece perisporium are provided with a groove that radially caves inward along said stator core from said perisporium respectively;
Be fastened on the buckling piece on the adjacent said groove of two said iron core pieces, each said buckling piece have main body and from said main body the same side outward extending two tenons, each said tenon is fastened in the said groove.
6. stator according to claim 5 is characterized in that:
Said groove is the slot groove, and the root width of said tenon is less than the maximum outside diameter of said tenon.
7. according to claim 5 or 6 described stators, it is characterized in that:
The spacing of two said tenons of each said buckling piece is less than the spacing of adjacent two said grooves.
8. motor comprises
Stator and rotor, said stator have stator core and are wrapped in the coil on the said stator core, and said stator core has the iron core piece of two semi-annular shapes, and each said iron core piece has a plurality of teeth that extend to said stator core axis direction;
It is characterized in that:
Two end line places of each said iron core piece perisporium are provided with a groove that radially caves inward along said stator core from said perisporium respectively;
Be fastened on the buckling piece on the adjacent said groove of two said iron core pieces, each said buckling piece have main body and from said main body the same side outward extending two tenons, each said tenon is fastened in the said groove.
9. motor according to claim 8 is characterized in that:
Said groove is the slot groove, and the root width of said tenon is less than the maximum outside diameter of said tenon.
10. it is characterized in that according to Claim 8 or 9 described motors:
The spacing of two said tenons of each said buckling piece is less than the spacing of adjacent two said grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200894570U CN202524182U (en) | 2012-03-09 | 2012-03-09 | Stator core, stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200894570U CN202524182U (en) | 2012-03-09 | 2012-03-09 | Stator core, stator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524182U true CN202524182U (en) | 2012-11-07 |
Family
ID=47107111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200894570U Expired - Fee Related CN202524182U (en) | 2012-03-09 | 2012-03-09 | Stator core, stator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202524182U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935091A (en) * | 2014-03-20 | 2015-09-23 | 舍弗勒技术股份两合公司 | Annular silicon steel sheet having separation structure, iron core and installation method |
| CN107086680A (en) * | 2017-05-26 | 2017-08-22 | 淮安威灵电机制造有限公司 | Motor stator and the motor with it |
| CN107276282A (en) * | 2017-08-01 | 2017-10-20 | 珠海凯邦电机制造有限公司 | Motor buckle, motor stator and motor |
| CN108667167A (en) * | 2018-06-15 | 2018-10-16 | 珠海格力电器股份有限公司 | A kind of assembling method of stator core, stator module, motor and stator core |
| CN108667167B (en) * | 2018-06-15 | 2024-06-25 | 珠海格力电器股份有限公司 | Stator core, stator assembly, motor and assembling method of stator core |
-
2012
- 2012-03-09 CN CN2012200894570U patent/CN202524182U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935091A (en) * | 2014-03-20 | 2015-09-23 | 舍弗勒技术股份两合公司 | Annular silicon steel sheet having separation structure, iron core and installation method |
| CN104935091B (en) * | 2014-03-20 | 2019-12-17 | 舍弗勒技术股份两合公司 | Annular silicon steel sheet with separation structure, iron core and installation method |
| CN107086680A (en) * | 2017-05-26 | 2017-08-22 | 淮安威灵电机制造有限公司 | Motor stator and the motor with it |
| CN107276282A (en) * | 2017-08-01 | 2017-10-20 | 珠海凯邦电机制造有限公司 | Motor buckle, motor stator and motor |
| CN108667167A (en) * | 2018-06-15 | 2018-10-16 | 珠海格力电器股份有限公司 | A kind of assembling method of stator core, stator module, motor and stator core |
| CN108667167B (en) * | 2018-06-15 | 2024-06-25 | 珠海格力电器股份有限公司 | Stator core, stator assembly, motor and assembling method of stator core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20210309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |