CN203206002U - Stator lamination and motor - Google Patents
Stator lamination and motor Download PDFInfo
- Publication number
- CN203206002U CN203206002U CN 201320117443 CN201320117443U CN203206002U CN 203206002 U CN203206002 U CN 203206002U CN 201320117443 CN201320117443 CN 201320117443 CN 201320117443 U CN201320117443 U CN 201320117443U CN 203206002 U CN203206002 U CN 203206002U
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- stator
- stator punching
- deep trouth
- shallow slot
- winding section
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Abstract
The utility model provides a stator lamination and a motor. The stator lamination comprises a yoke portion, and the stator lamination is provided with a plurality of teeth which are inwardly extended from the yoke portion along the radial direction of the stator lamination, grooves are formed between two neighboring teeth, the plurality of grooves comprise shallow grooves and deep grooves which are arranged separately, each shallow groove comprises a first winding portion which is located at the middle portion of the shallow groove, each deep groove comprises a second winding portion which is located at the middle portion of the deep groove, and the distance between the second winding portion and the center of the stator lamination is greater than the distance between the first winding portion and the center of the stator lamination. The motor comprises a stator and a rotor. The stator comprises a stator core which is formed by laminating the above-mentioned stator lamination, and coils which are wound onto the stator core. The coils comprise a plurality of inner coils and a plurality of outer coils, wherein the minimum distance between the outer coils and the center of the stator core is greater than the maximum distance between the inner coils and the center of the stator core. According to the utility model, the coil winding process difficulty can be reduced, and the coils are not overlapped in space, so that the motor production cost is reduced.
Description
Technical field
The utility model relates to machine field, especially relates to a kind of motor of inner-rotor-type and has the stator punching that this motor uses.
Background technology
Motor is widely used in the various electric equipments of industrial production and life, and prior motor has stator and rotor, and armature spindle is installed in the rotor and with the rotation of rotor and rotates, and outputting power thus.
Referring to Fig. 1, the end cap 11,12 that more existing motors have housing 10 and are positioned at housing 10 two ends, housing 10 and end cap 11,12 surround a cavity, and stator 15 and rotor 18 are installed in the cavity, and stator 15 has stator core 16 and is embedded into coil 17 on stator core 16.Rotor 18 is installed in the stator 15, and can be with respect to stator 15 rotations.Armature spindle 19 is installed in the rotor 18, and with rotor 18 interference fit, armature spindle 19 rotates under the drive of rotor 18, thus outside outputting power.
Stator core 16 is overrided to form by the identical stator punching of multi-disc shape usually, and referring to Fig. 2, stator punching 20 is stamped to form by silicon steel sheet, and it roughly is circular, and has the yoke portion 21 that is positioned at outer peripheral edges, and yoke portion 21 is circular.Stator punching 20 also is provided with a plurality of teeth 22 that radially extend to the middle part of stator punching 20 along stator punching 20 from yoke portion 21, forms a groove 23 between two adjacent teeth 22, and coil is wrapped on the tooth 22.And the middle part of stator punching 20 arranges the interior circular hole 24 of a hollow, and after multi-disc stator punching 20 laminated and forms stator core 16, the interior circular hole 24 of stator punching 20 formed rotor hole, and rotor is installed in the rotor hole.
During stator core winding around that stator punching 20 is overrided to form, needing to twine two-layer coil, is respectively interior loop and exterior loop.Referring to Fig. 3, exterior loop 35 is wrapped in the bottom of the groove 33 of stator core 16, from the center of stator core 16 away from.Interior loop 36 is wrapped in groove 33 near the position of notch, and is nearer from the center of stator core 16.
Each interior loop 36 will be crossed over 4 grooves 33, and each exterior loop 35 also crosses over 4 grooves 33, and interior loop 36 is not wrapped on the same groove 33 with exterior loop 35.Yet, the groove 33 that twines interior loop 36 will have exterior loop 35 to cross over, and the groove 33 that twines exterior loop 35 also has interior loop 36, cause the distance between interior loop 36 and the exterior loop 35 very near, this proposes very high requirement to the insulation processing between interior loop 36 and the exterior loop 35, so the insulating treatment process complexity between interior loop 36 and the exterior loop 35.
In addition, since interior loop 36 and exterior loop 35 stator core 16 axially on overlapping, the coiling difficulty height that causes interior loop 36 and exterior loop 35, the turn-to-turn fraction defective height that causes interior loop 36 and exterior loop 35, when raising the production cost of motor, influence the job stability of motor, cause that the motor rated efficiency is low, energy consumption is big.
Summary of the invention
Main purpose of the present utility model provides a kind of stator punching that is conducive to the stator coil winding of motor.
Another purpose of the present utility model provides the motor that a kind of stator coil winding technology is simple and production cost is low.
For realizing main purpose of the present utility model, the stator punching that the utility model provides comprises circular yoke portion, and be provided with a plurality of teeth that extend internally along the stator punching radial direction from yoke portion, form groove between two adjacent teeth, and the middle part of stator punching is provided with interior circular hole, wherein, a plurality of grooves comprise shallow slot and the deep trouth that arranges at interval, each shallow slot has first winding section that is positioned at the shallow slot middle part, each deep trouth has second winding section that is positioned at the deep trouth bottom land, and the distance at second winding section and stator punching center is greater than the distance at first winding section and stator punching center.
By such scheme as seen, the shallow slot and the deep trouth that arrange at interval are set on the stator punching, interior loop and exterior loop can be wound on respectively between adjacent shallow slot and the adjacent deep trouth, interior loop and exterior loop spatially can be not overlapping like this, insulating requirements between interior loop and the exterior loop is greatly reduced, and the placement of insulating material is also comparatively simple, and the coiling difficulty of stator coil is greatly reduced, thereby reduces the production cost of motor.
A preferred scheme is that shallow slot and deep trouth upwards arranged in twos at interval in the week of stator punching.
Like this, two adjacent interior loop do not need to be wound in the same deep trouth, can be wound on respectively in two adjacent deep trouths, to avoid adjacent interior loop phase mutual interference, have simplified the technology of coil winding yet.And two adjacent exterior loop also can be wound on respectively in two shallow slots, and the coiling difficulty of exterior loop also greatly reduces.
Further scheme is, first winding section is in the circumferential lengths of the length that makes progress in stator punching week greater than the shallow slot bottom land, and second winding section is in the circumferential lengths of the length that makes progress in stator punching week greater than deep trouth groove body.
This shows, design the circumferential lengths of first winding section and second winding section longer, be conducive to coil is embedded in first winding section and second winding section that avoid coil to slide, the motor operation is comparatively stable in groove.
Further scheme is, the both sides, end of the tooth between two adjacent deep trouths are respectively equipped with side from tooth along circumferential outward extending tooth boots.
As seen, by the dual-side at tooth the tooth boots are set, the notch of deep trouth is designed for half opening, air gap flux density and pole embrace in the time of can guaranteeing the motor operation, and the generation of minimizing deep trouth notch leakage field reality.
For realizing another purpose of the present utility model, the motor that the utility model provides has stator and is installed in the interior rotor of stator, stator has stator core and is wrapped in coil on the stator core, stator core is overrided to form by the multi-disc stator punching, each stator punching has circular yoke portion, and be provided with a plurality of teeth that extend internally along the stator punching radial direction from yoke portion, form groove between two adjacent teeth, and the middle part of stator punching is provided with interior circular hole, wherein, a plurality of grooves comprise shallow slot and the deep trouth that arranges at interval, each shallow slot has first winding section that is positioned at the shallow slot middle part, each deep trouth has second winding section that is positioned at the deep trouth bottom land, the distance at second winding section and stator punching center is greater than the distance at first winding section and stator punching center, coil on the stator core comprises a plurality of interior loop and a plurality of exterior loop, each interior loop is wrapped between two shallow slots, each exterior loop is wrapped between two deep trouths, and the minimum range at exterior loop and stator core center is greater than the ultimate range at interior loop and stator core center.
By such scheme as seen, deep trouth and shallow slot are set on the stator punching, interior loop and exterior loop can be wound on deep trouth and the shallow slot respectively, and deep trouth upwards separates in the footpath of stator punching with shallow slot, avoid interior loop and exterior loop spatially overlapping, thereby reduced the coiling difficulty of interior loop and exterior loop, the technique for coiling of coil is simple, and can reduce the production cost of motor.
Description of drawings
Fig. 1 is the cutaway view of existing motor.
Fig. 2 is the structure enlarged drawing of existing stator punching.
Fig. 3 is the structure enlarged drawing that existing stator core is wound with coil.
Fig. 4 is the structure chart of the utility model stator punching embodiment.
Fig. 5 is the structure enlarged drawing of deep trouth among the utility model stator punching embodiment.
Fig. 6 is the structure enlarged drawing of shallow slot among the utility model stator punching embodiment.
Fig. 7 is the structure chart that the stator core among the utility model motor embodiment is wound with coil.
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
Motor of the present utility model has housing and is positioned at the housing end covers at two sides, and housing and end cap surround a cavity, and stator and rotor are installed in the cavity.In the present embodiment, stator is made of stator core and the coil that is wrapped on the stator core, and the middle part of stator core is provided with columned rotor installing hole, and rotor is installed in the rotor installing hole.And the middle part of rotor is equipped with armature spindle, armature spindle and rotor interference fit, and rotate with the rotation of rotor, outside outputting power thus.
Stator has stator core and is wrapped in coil on the stator core, and stator core is overrided to form by the identical stator punching of multi-disc shape.Referring to Fig. 4, the stator punching of present embodiment 40 is stamped to form by silicon steel sheet, and it roughly is circular, and is provided with circular yoke portion 41, is provided with a plurality of teeth 42 in yoke portion 41, and each tooth 42 is all from yoke portion 41 extending radially inwardly along stator punching 40.Form a groove between two adjacent teeth 42, in the present embodiment, the groove on the stator punching 40 comprises a plurality of shallow slots 60 and a plurality of deep trouth 50.
As seen from Figure 4, shallow slot 60 all arranges towards the center of stator punching 40 with the notch of deep trouth 50, and the notch of shallow slot 60 and deep trouth 50 is all on same circular arc, and the degree of depth of shallow slot 60 is less than the degree of depth of deep trouth 50, and namely the distance at the distance of shallow slot 60 bottom lands and stator punching 40 centers is less than the distance at deep trouth 50 bottom lands and stator punching 40 centers.
From Fig. 4 as seen, shallow slot 60 is upwards arranged in the week of stator punching 40 at interval with deep trouth 50, and shallow slot 60 is to arrange at interval in twos with deep trouth 50, be separated with namely between adjacent two deep trouths 50 of shallow slot 60 and have two shallow slots 60, be separated with between adjacent two shallow slots 60 of deep trouth 50 and have two deep trouths 50.
Referring to Fig. 5, deep trouth 50 has the winding section 51 that is positioned at bottom land, and the length that winding section 51 made progress in 40 weeks of stator punching is D1, and deep trouth 50 is groove body 52 near notch 53 places, the length that 52 weeks of groove body make progress is D2, and the length D1 of winding section 51 is greater than the length D2 of groove body 52.Therefore, deep trouth 50 is cutter type groove or is the boot last groove, like this, is conducive to the coiling of exterior loop.
From Fig. 4 as seen, the winding section 51 of two adjacent deep trouths 50 is back to setting, so winding section 51 is to extend along another adjacent deep trouth 50 that stator punching 40 is separated with shallow slot 60 between circumferentially.
Referring to Fig. 6, shallow slot 60 has the winding section 61 at close notch 63 places, and the length that winding section 61 made progress in 40 weeks of stator punching is D3, and the circumferential lengths of shallow slot 60 bottom lands 62 is D4.From Fig. 6 as seen, the circumferential lengths D3 of winding section 61 is greater than the circumferential lengths D4 of bottom land 62, and namely shallow slot 60 is waist type groove, is conducive to the coiling of interior loop like this.
From Fig. 4 as seen, distance between the winding section 61 of shallow slot 60 and stator punching 40 centers is R1, distance between the winding section 51 of deep trouth 50 and stator punching 40 centers is R2, and the distance between deep trouth 50 winding sections 51 and stator punching 40 centers is that R2 is R1 greater than the winding section 61 of shallow slot 60 and the distance between stator punching 40 centers.
And, the both sides, end of the tooth 43 between two adjacent deep trouths 50 are respectively equipped with a side from tooth 43 along stator punching 40 circumferential outward extending tooth boots 44,45, like this, the notch 53 of each deep trouth 50 is the half opening design, can guarantee air gap flux density and the pole embrace of deep trouth 50, and reduce the notch 53 leakage field phenomenons of deep trouth 50.
Referring to Fig. 7, be wound with a plurality of interior loop 76 and a plurality of exterior loop 75 on the stator core 70 that is overrided to form by the multi-disc stator punching, be separated with between each interior loop 76 is wrapped between two adjacent shallow slots 73 of deep trouth 72, be separated with between each exterior loop 75 is wrapped between two adjacent deep trouths 72 of shallow slot 73.Each interior loop 76 upwards is separated from each other in the footpath of stator core 70 with each exterior loop 75 like this, the coiling difficulty of interior loop 76 with exterior loop 75 reduced greatly, and it is simple that raw-material extremely technology is set between interior loop 76 and exterior loop 75, reduces the production cost of motor.
In addition, the minimum range R4 at exterior loop 75 and stator core 70 centers is greater than the ultimate range R3 of interior loop 76 with stator core 70 centers, therefore can guarantee that interior loop 76 and exterior loop 76 upwards can be not overlapped in the footpath of stator core 70, thereby avoid interior loop 76 and exterior loop 75 coiling back turn-to-turn condition of poor, guarantee the steady of motor operation.
Certainly, above-described embodiment only be the utility model preferred embodiment, during practical application more change can be arranged, for example, deep trouth and shallow slot are not to arrange at interval in twos, but each deep trouth and each shallow slot arrange at interval; Perhaps the winding section with deep trouth and shallow slot is designed to axisymmetric shape, and such change also can realize the purpose of this 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 as the variations such as change of change, deep trouth and the shallow slot notch shape of change, deep trouth and the shallow slot shape of deep trouth on the stator punching and shallow slot quantity.
Claims (10)
1. stator punching comprises
Circular yoke portion, and be provided with a plurality of teeth that extend internally along the stator punching radial direction from described yoke portion, form groove between two adjacent described teeth, and the middle part of stator punching is provided with interior circular hole;
It is characterized in that:
A plurality of described grooves comprise shallow slot and the deep trouth that arranges at interval, each described shallow slot has first winding section that is positioned at described shallow slot middle part, each described deep trouth has second winding section that is positioned at described deep trouth bottom land, and the distance at described second winding section and described stator punching center is greater than the distance at described first winding section and described stator punching center.
2. stator punching according to claim 1 is characterized in that:
Described shallow slot and described deep trouth upwards arranged in twos at interval in the week of stator punching.
3. stator punching according to claim 1 and 2 is characterized in that:
Described first winding section is in the circumferential lengths of the length that makes progress in described stator punching week greater than described shallow slot bottom land.
4. stator punching according to claim 1 and 2 is characterized in that:
Described second winding section is in the circumferential lengths of the length that makes progress in described stator punching week greater than described deep trouth groove body.
5. stator punching according to claim 2 is characterized in that:
The both sides, end of the described tooth between two adjacent described deep trouths are respectively equipped with side from described tooth along circumferential outward extending tooth boots.
6. motor comprises
Stator and be installed in rotor in the described stator, described stator has stator core and is wrapped in coil on the described stator core, described stator core is overrided to form by the multi-disc stator punching, each described stator punching has circular yoke portion, and and be provided with a plurality of teeth that extend internally along the stator punching radial direction from described yoke portion, form groove between two adjacent described teeth, and the middle part of stator punching is provided with interior circular hole;
It is characterized in that:
A plurality of described grooves comprise shallow slot and the deep trouth that arranges at interval, each described shallow slot has first winding section that is positioned at described shallow slot middle part, each described deep trouth has second winding section that is positioned at described deep trouth bottom land, and the distance at described second winding section and described stator punching center is greater than the distance at described first winding section and described stator punching center;
Described coil comprises a plurality of interior loop and a plurality of exterior loop, each described interior loop is wrapped between two described shallow slots, each described exterior loop is wrapped between two described deep trouths, and the minimum range at described exterior loop and described stator core center is greater than the ultimate range at described interior loop and described stator core center.
7. motor according to claim 6 is characterized in that:
Described shallow slot and described deep trouth upwards arranged in twos at interval in the week of stator punching;
Each described interior loop is wrapped at interval to be had between adjacent two the described shallow slot of described deep trouth, and each described exterior loop is wrapped at interval to be had between adjacent two the described deep trouth of described shallow slot.
8. according to claim 6 or 7 described motors, it is characterized in that:
Described first winding section is in the circumferential lengths of the length that makes progress in described stator punching week greater than described shallow slot bottom land.
9. according to claim 6 or 7 described motors, it is characterized in that:
Described second winding section is in the circumferential lengths of the length that makes progress in described stator punching week greater than described deep trouth groove body.
10. motor according to claim 7 is characterized in that:
The both sides, end of the described tooth between two adjacent described deep trouths are respectively equipped with side from described tooth along circumferential outward extending tooth boots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117443 CN203206002U (en) | 2013-03-14 | 2013-03-14 | Stator lamination and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320117443 CN203206002U (en) | 2013-03-14 | 2013-03-14 | Stator lamination and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203206002U true CN203206002U (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320117443 Expired - Lifetime CN203206002U (en) | 2013-03-14 | 2013-03-14 | Stator lamination and motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203206002U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475173A (en) * | 2013-09-25 | 2013-12-25 | 珠海格力电器股份有限公司 | Stator coil winding method and winding device |
| CN106936233A (en) * | 2015-12-31 | 2017-07-07 | 中山大洋电机股份有限公司 | Stator punching, stator module and external rotor electric machine |
| CN108390537A (en) * | 2018-03-21 | 2018-08-10 | 哈尔滨工业大学 | Non-overlapping winding bilateral exchange linear motor |
| CN106160388B (en) * | 2015-03-30 | 2018-11-30 | 北京自动化控制设备研究所 | A kind of Low gullet torque brshless DC motor optimization method |
| CN111697717A (en) * | 2020-06-30 | 2020-09-22 | 珠海凯邦电机制造有限公司 | Motor stator punching sheet and motor |
| CN112865347A (en) * | 2019-11-12 | 2021-05-28 | 广东美的环境电器制造有限公司 | Stator punching sheet, stator assembly, motor and household appliance |
-
2013
- 2013-03-14 CN CN 201320117443 patent/CN203206002U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475173A (en) * | 2013-09-25 | 2013-12-25 | 珠海格力电器股份有限公司 | Stator coil winding method and winding device |
| CN103475173B (en) * | 2013-09-25 | 2016-05-18 | 珠海格力电器股份有限公司 | Stator coil winding method and coiling device |
| CN106160388B (en) * | 2015-03-30 | 2018-11-30 | 北京自动化控制设备研究所 | A kind of Low gullet torque brshless DC motor optimization method |
| CN106936233A (en) * | 2015-12-31 | 2017-07-07 | 中山大洋电机股份有限公司 | Stator punching, stator module and external rotor electric machine |
| CN106936233B (en) * | 2015-12-31 | 2020-01-03 | 中山大洋电机股份有限公司 | Stator module and external rotor motor |
| CN108390537A (en) * | 2018-03-21 | 2018-08-10 | 哈尔滨工业大学 | Non-overlapping winding bilateral exchange linear motor |
| CN108390537B (en) * | 2018-03-21 | 2019-12-31 | 哈尔滨工业大学 | Non-overlapping winding double-side AC linear motor |
| CN112865347A (en) * | 2019-11-12 | 2021-05-28 | 广东美的环境电器制造有限公司 | Stator punching sheet, stator assembly, motor and household appliance |
| CN111697717A (en) * | 2020-06-30 | 2020-09-22 | 珠海凯邦电机制造有限公司 | Motor stator punching sheet and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |