CN202524183U - Stator core, stator and motor - Google Patents
Stator core, stator and motor Download PDFInfo
- Publication number
- CN202524183U CN202524183U CN2012201028049U CN201220102804U CN202524183U CN 202524183 U CN202524183 U CN 202524183U CN 2012201028049 U CN2012201028049 U CN 2012201028049U CN 201220102804 U CN201220102804 U CN 201220102804U CN 202524183 U CN202524183 U CN 202524183U
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- groove
- stator core
- stator
- iron core
- connector
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Abstract
The utility model provides a stator core, a stator and a motor. The stator core has two semicircle annular iron core blocks, and each iron core block has a plurality of teeth which extend to a stator core axial direction, wherein two end walls of each iron core block are respectively provided with one groove which is indented inwards from the end walls along a peripheral direction of the stator core, each groove is an narrow port groove, the grooves on the two iron core blocks are in a butt joint way, the stator core further comprises connecting pieces which are equipped in the two pairs of butt-jointed grooves, each connecting piece has connecting columns which are located at two transverse ends of the connecting piece, and a connecting portion which connects the two connecting columns, and width of the connecting portion is smaller than the maximum external diameter of the connecting column. According to the stator core, the stator and the motor, production cost of the stator core can be reduced; connection of the iron core blocks is more secure; formation of a crack on the stator core can be avoided, and thereby inner circle deformation 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, and each iron core piece has a plurality of teeth that extend to the stator core axis direction, wherein; Be respectively equipped with a groove that circumferentially caves inward along stator core from end wall on two end walls of each iron core piece; Each groove is the slot groove, and the butt joint of the groove on two iron core pieces, and stator core also comprises the connector in the groove that is contained in two pairs of butt joints; The connecting portion that each connector has the joint pin that is positioned at transverse ends and connects two joint pins, the width of connecting portion is less than the maximum outside diameter of joint pin.
Visible by such scheme; Stator core is to insert the fixed connection that realizes two iron core pieces in the groove that docks through connector; 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 the cell body cross section of groove is circular or trapezoidal or a swallow-tail form of opening.
This shows that the cell body shape of cross section of groove is conventional shape, is convenient to the punching press of punching, also helps the manufacturing of stator core.In addition, above-mentioned shape also helps the fixed connection of two iron core pieces.
Further scheme is that at least one longitudinal end of connector is provided with rounding.Like this, can easily the connector guiding be inserted in the groove, make things convenient for the installation of connector through rounding.
Scheme further is that connector is processed by metal material or macromolecular material.Because macromolecular material has the good heat endurance ability, can avoid fusing or distortion in injection moulding process.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; Be respectively equipped with a groove that circumferentially caves inward along stator core from end wall on two end walls of each iron core piece; Each groove is the slot groove, and the butt joint of the groove on two iron core pieces, and stator core also comprises the connector in the groove that is contained in two pairs of butt joints; The connecting portion that each connector has the joint pin that is positioned at transverse ends and connects two joint pins, the width of connecting portion is less than the maximum outside diameter of joint pin.
Visible by such scheme, the iron core piece connects through connector, 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 need on end wall, not be provided for the dovetail groove and the dovetail of self amalgamation, 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, be respectively equipped with a groove that circumferentially caves inward along stator core from end wall on two end walls of each iron core piece, each groove is the slot groove; And the butt joint of the groove on two iron core pieces; Stator core also comprises the connector in the groove that is contained in two pairs of butt joints, the connecting portion that each connector has the joint pin that is positioned at transverse ends and connects two joint pins, and the width of connecting portion is less than the maximum outside diameter of joint pin.
This shows; The iron core piece is fixedly connected through connector, 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 iron core piece among the utility model stator core embodiment.
Fig. 6 is the structure enlarged drawing of connector among the utility model stator core embodiment.
Fig. 7 is the partial enlarged drawing of 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 is stamped to form by silicon steel sheet.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, and iron core piece 30 also has the end wall 34,37 that is positioned at perisporium 33 two ends, on end wall 34,37, is respectively equipped with a groove 35,38 that circumferentially caves inward along stator core.As shown in Figure 5, groove 35 is the slot groove, and promptly the width of rebate L1 of groove 35 is less than the maximum inner diameter L2 of groove 35 cell bodies.In the present embodiment, the inner surface of groove 35 is smooth cambered surface, and the cross section of cell body is that opening is circular.
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, on end wall 44,47, also be provided with groove 45,48, and groove 45,48 all is circumferentially to cave inward along stator core.
During the assembly unit stator core; With two iron core pieces 30,40 butt joint, form one circular, and; As shown in Figure 3; Groove 35,45 butt joints after the assembly unit on the end wall 34,44 of two iron core piece 30,40 butt joints, promptly groove 35 is oppositely arranged with the notch of groove 45, and the groove 38,48 on the end wall 37,47 also docks.In addition, in order to ensure the fixed connection of two iron core pieces 30,40, the connector 50 of in the groove 35,45 of iron core piece 30,40 butt joints, packing into, and in the groove 38,48 of butt joint, load onto connector 60.
Referring to Fig. 6, connector 50 has two joint pins 51,52 that are positioned at transverse ends, joint pin 51, is connected with connecting portion 53 between 52, and connecting rod 51,52 roughly is cylindric, and the width of connecting rod is less than the maximum outside diameter of connecting rod 51,52.During the amalgamation stator core, after 30,40 butt joints of iron core piece, connector 50 is inserted in the groove 35,45, and connector 60 is inserted in the groove 38,48, as shown in Figure 7.Like this,, and be difficult in groove 35,45, coming off, therefore can iron core piece 30,40 be fixed together owing to connecting rod 51,52 can cooperate with the cell body of groove 35,45.
For ease connector 50 is packed in the groove 35,45, on vertical two ends of connector, offer rounding 55, help like this connector guiding is installed in the groove 35,45.
Through two connectors 50,60 that two iron core pieces 30,40 are fixing, 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 cell body cross section of groove is not necessarily to be arranged to the opening circle, can also be arranged to shapes such as ellipse, trapezoidal or swallow-tail form, and correspondingly, the joint pin of connector also need be arranged to corresponding shape.
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, the vertical two ends of connector are provided with corner; Perhaps, the connecting portion of connector is arranged to the shape of inner concave arc surface, and 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 the joint pin shape of connector, the variations such as change of connector 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:
Be respectively equipped with a groove that circumferentially caves inward along said stator core from said end wall on two end walls of each said iron core piece, each said groove is the slot groove, and the groove butt joint on two said iron core pieces;
Be contained in the interior connector of said groove of two pairs of butt joints, the connecting portion that each said connector has the joint pin that is positioned at transverse ends and connects two said joint pins, the width of said connecting portion is less than the maximum outside diameter of said joint pin.
2. stator core according to claim 1 is characterized in that:
The cell body cross section of said groove is circular or trapezoidal or a swallow-tail form of opening.
3. stator core according to claim 1 and 2 is characterized in that:
At least one longitudinal end of said connector is provided with rounding.
4. stator core according to claim 1 and 2 is characterized in that:
Said connector 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:
Be respectively equipped with a groove that circumferentially caves inward along said stator core from said end wall on two end walls of each said iron core piece, each said groove is the slot groove, and the groove butt joint on two said iron core pieces;
Be contained in the interior connector of said groove of two pairs of butt joints, the connecting portion that each said connector has the joint pin that is positioned at transverse ends and connects two said joint pins, the width of said connecting portion is less than the maximum outside diameter of said joint pin.
6. stator according to claim 5 is characterized in that:
The cell body cross section of said groove is circular or trapezoidal or a swallow-tail form of opening.
7. according to claim 5 or 6 described stators, it is characterized in that:
At least one longitudinal end of said connector is provided with rounding.
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:
Be respectively equipped with a groove that circumferentially caves inward along said stator core from said end wall on two end walls of each said iron core piece, each said groove is the slot groove, and the groove butt joint on two said iron core pieces;
Be contained in the interior connector of said groove of two pairs of butt joints, the connecting portion that each said connector has the joint pin that is positioned at transverse ends and connects two said joint pins, the width of said connecting portion is less than the maximum outside diameter of said joint pin.
9. motor according to claim 8 is characterized in that:
The cell body cross section of said groove is circular or trapezoidal or a swallow-tail form of opening.
10. it is characterized in that according to Claim 8 or 9 described motors:
At least one longitudinal end of said connector is provided with rounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201028049U CN202524183U (en) | 2012-03-16 | 2012-03-16 | Stator core, stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201028049U CN202524183U (en) | 2012-03-16 | 2012-03-16 | Stator core, stator and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524183U true CN202524183U (en) | 2012-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201028049U Expired - Fee Related CN202524183U (en) | 2012-03-16 | 2012-03-16 | Stator core, stator and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202524183U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100169A (en) * | 2016-08-17 | 2016-11-09 | 珠海凯邦电机制造有限公司 | Stator core, stator, motor and air-conditioner |
| CN107332366A (en) * | 2017-06-29 | 2017-11-07 | 合普动力股份有限公司 | The fastening structure of split-type stator core |
| CN107534328A (en) * | 2015-06-17 | 2018-01-02 | 三菱电机株式会社 | Permanent-magnet synchronous electric motor |
| CN109980811A (en) * | 2019-03-12 | 2019-07-05 | 浙江实日机电科技有限公司 | A kind of rotor core and its assembly equipment |
| CN110011435A (en) * | 2019-03-12 | 2019-07-12 | 浙江实日机电科技有限公司 | A kind of stator core and its assembly equipment |
-
2012
- 2012-03-16 CN CN2012201028049U patent/CN202524183U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107534328A (en) * | 2015-06-17 | 2018-01-02 | 三菱电机株式会社 | Permanent-magnet synchronous electric motor |
| CN107534328B (en) * | 2015-06-17 | 2019-11-29 | 三菱电机株式会社 | Stator core, permanent-magnet synchronous electric motor and air regulator |
| CN106100169A (en) * | 2016-08-17 | 2016-11-09 | 珠海凯邦电机制造有限公司 | Stator core, stator, motor and air-conditioner |
| CN107332366A (en) * | 2017-06-29 | 2017-11-07 | 合普动力股份有限公司 | The fastening structure of split-type stator core |
| CN109980811A (en) * | 2019-03-12 | 2019-07-05 | 浙江实日机电科技有限公司 | A kind of rotor core and its assembly equipment |
| CN110011435A (en) * | 2019-03-12 | 2019-07-12 | 浙江实日机电科技有限公司 | A kind of stator core and its assembly equipment |
| CN109980811B (en) * | 2019-03-12 | 2020-05-15 | 浙江实日机电科技有限公司 | Rotor core and assembly equipment thereof |
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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: 20210316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |