CN1780091A - Stator of electric motor with insulator - Google Patents
Stator of electric motor with insulator Download PDFInfo
- Publication number
- CN1780091A CN1780091A CN 200410072839 CN200410072839A CN1780091A CN 1780091 A CN1780091 A CN 1780091A CN 200410072839 CN200410072839 CN 200410072839 CN 200410072839 A CN200410072839 A CN 200410072839A CN 1780091 A CN1780091 A CN 1780091A
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- Prior art keywords
- insulator
- yoke
- stator
- along
- tooth
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Abstract
A stator with insulator for motor has a stator's iron core consisting of a magnetic yoke ring and multiple teeth radially arranged on said magnetic yoke ring, and two insulators arranged at both sides of stator windings. Said insulator is composed of a magnetic yoke insulating part, a teeth insulating part, and winding guiding unit.
Description
Technical field
The present invention relates to motor stator, more particularly, relate to use restriction that minimizing causes because of stator core stacked thickens and the motor stator that improves advantages such as stator core groove area utilization ratio.
Background technology
Fig. 1 is the exploded perspective view that in the past was equipped with the motor stator of insulator.As shown in the figure, motor stator comprises the stator core 110 that is formed by the stacked a plurality of conduction iron plates 111 of insulation, respectively inserts and be combined in a plurality of insulators 120 of both sides with stator core 110 insulation along stator core 110 stacked directions for making the stator coil (not shown) that is wrapped in the stator core 110.
Conduction iron plate 111 comprises by ring-like yoke (yoke) 112a of portion, protrudes to the inside from the 112a of yoke portion along radial direction and forms for form a plurality of tooth 112b of portion that core slots 112c is provided with at interval betwixt respectively along the 112a of yoke portion peripheral direction.On the end that each 112b of tooth portion protrudes, be formed with respectively along the extension end 113 of the circular-arc extension of the 112a of yoke portion peripheral direction.
Each insulator 120 comprises by along ring-like the 121a with ring-type forming of conduction iron plate 111 stacked directions with the contact of the 112a of yoke portion face, can insert in each core slots 112c and protrude and can hold betwixt the core slots insertion section 121b that forms along ring-like 121a thickness direction space of each 112b of tooth portion accordingly, the coil guider 121c that guides the stacked direction from core slots insertion section 121b along stator core 110 of stator coil to protrude respectively along ring-like 121a thickness direction and each core slots 112c shape.
According to above-mentioned formation, stacked direction along stator core 110 is inserted in the corresponding core slots 112c of stator core 110 core slots insertion section 121b in conjunction with each insulator 120 respectively in both sides, and the periphery of each 112b of tooth portion that is insulated by insulator 120 forms the stator coil of rotating magnetic field when twining turn-on power.
But the motor stator that is equipped with the conventional art of above-mentioned insulator has following shortcoming:
1) because in the core slots 112c that tooth portion 112b both sides form, inserts the insulator 120 of the core slots insertion section 121b with insulation respectively along the stacked direction of stator core 110, so when increasing stator core 110 stacked thickness, the height of core slots insertion section 121b also can increase, and therefore increases the material requested expense.
2) the groove insertion section 121b that is combined in the core slots 112c inside of stator core 110 because of insertion has certain thickness, makes that the actual cross-section of inserting stator coring groove 112c is long-pending to diminish.
Summary of the invention
The objective of the invention is to, provide a kind of outfit can reduce Master Cost, reduce use restriction that the stacked thickness by stator core causes and the motor stator that improves the insulator of core slots area utilization ratio.
The motor stator of outfit insulator in order to achieve the above object, involved in the present invention (STATOR OF ELECTRIC MOTOR WITH INSULATOR) includes stator core and insulator.Stator core by ring-like yoke (yoke) portion and from yoke portion along radial direction outstanding and in order to form core slots along peripheral direction the interval is provided with stacked formation of multilayer conductive iron plate of a plurality of tooth portion; Insulator forms and is combined in both sides respectively along the stacked direction of stator core with insulating material is whole, includes along conduction iron plate stacked direction to contact by side the yoke insulation division of formation with yoke portion one, contact and protrude and guide with the integrated tooth insulation division of yoke insulation division, to the thickness direction of yoke insulation division and tooth insulation division the coil guider of the stator coil that is wrapped in yoke portion with tooth portion face.
Here, insulator preferably also includes the interior side rib and the outer ribs of the protrusion formation that can contact yoke portion and tooth portion respectively.
The interior side rib accepting groove and the outer ribs accepting groove of side rib and outer ribs in stator core preferably is formed with respectively and accommodates respectively.
Interior side rib accepting groove preferably comprises in tooth portion and protrudes the extension end concavity formation reduction box pin joint moment of torsion (cogging torque) of certain amplitude is extended in the end along the peripheral direction of yoke portion groove.
The outer ribs accepting groove preferably comprises the depressed part that is recessed to form along the radial direction of yoke portion in the relative side of the tooth portion of yoke portion.
It is best also including the insulation film parts that form and be contained in each core slots inside with film like with insulating material.
As described above, can reduce Master Cost and reduce the use restriction that the stacked thickness by stator coil causes according to the motor stator of outfit insulator of the present invention, be not inserted into core slots inside having thicker insulator, so can suppress the minimizing that insulation thickness causes the core slots sectional area, improve core slots sectional area utilization ratio.
Description of drawings
Fig. 1 is the motor stator exploded perspective view that is equipped with the conventional art of insulator.
Fig. 2 is the motor stator exploded perspective view of the outfit insulator of the embodiment of the invention.
Fig. 3 is the plane graph of stator core among Fig. 2.
Fig. 4 is the oblique view of stator core assembled state among Fig. 2.
The description of symbols of major part among the figure:
10: stator core 11: the conduction iron plate
12a: the 12b of yoke portion: tooth portion
12c: core slots 15: groove (notch)
17: depressed part 19: the insulation film parts
20: insulator 21: the yoke insulation division
23: tooth insulation division 26a: inner orientation device
26b: external orientation device 28: interior side rib
29: outer ribs
Embodiment
Below, the embodiment that present invention will be described in detail with reference to the accompanying.
Fig. 2 is the exploded perspective view of motor stator of the outfit insulator of the embodiment of the invention, and Fig. 3 is the plane graph of stator core among Fig. 2, and Fig. 4 is the oblique view of stator core assembled state among Fig. 2.
As shown in the figure, the motor stator of outfit insulator of the present invention includes stator core 10 and insulator 20.Wherein, stator core 10 is by having ring-like yoke (yoke) 12a of portion and outstanding and for forms multilayer conductive iron plate 11 stacked formation that core slots 12c interval is provided with a plurality of tooth 12b of portion along peripheral direction from the 12a of yoke portion along radial direction; Insulator 20 usefulness insulating material are whole to be formed and is combined in both sides respectively along the stacked direction of stator core 10, comprise along conduction iron plate 11 stacked directions and the 12a of yoke portion one contact by side formation yoke insulation division 21, with the 12b of tooth portion face contact and with yoke insulation division 21 integrated tooth insulation divisions 23, the thickness direction of yoke insulation division 21 and tooth insulation division 23 protrude and guiding around coil guider 25 compositions of the stator coil (not shown) of the 12a of yoke portion.
Be formed with the extension end 13 of circular-arc extension respectively along the 12a of yoke portion peripheral direction in the protruding end of each 12b of tooth portion, each extends end 13 and is formed with groove 15 with the reduction box pin joint moment of torsion (cogging torque) of semi-circular shape depression respectively.The outside of each the corresponding yoke of the 12b of tooth portion (yoke) 12a of portion forms respectively has certain purposes, can form a plurality of depressed parts 17 that cave in semi-circular shape to the inside by the stream of refrigerant (not shown) when for example using as the air compressor motor at compression refrigerant with between the compressor case (not shown).Accommodate respectively in conjunction with the insulation film parts 19 with film shape of minimal thickness each core slots 12c inside.
In addition, insulator 20 comprises the yoke insulation division 21 that contacts by side formation along stator core 10 stacked directions at the 12a of yoke portion one, contact with the routine surperficial face of each 12b of tooth portion and protrude the tooth insulation division 23 that forms, protrude respectively and guide along thickness direction around the coil guider 25 of the stator coil of tooth portion 12b periphery in each tooth insulation division 23 outside from yoke insulation division 21.Each coil guider 25 be formed with along the 12a of yoke portion radial direction stator coil in the middle of it and corresponding mutually external orientation device 26a and the inner orientation device 26b that is provided with, and on the side of the opposite of each coil guider 25, be formed with interior side rib 28 and the outer ribs of protruding along thickness direction 29 respectively and it can be inserted in the groove 15 and depressed part 17 that is combined in stator core 10 along insulator 20 thickness directions.
According to above-mentioned formation, each core slots 12c of stator core 10 is inner to be inserted in conjunction with insulation film parts 19, along the stacked direction of stator core 10 with the interior side rib 28 of each insulator 20 and outer ribs 29 under the state of both sides up and down and each groove 15 and depressed part 17 corresponding settings, give the both sides insulator 20 pressurizations respectively along the stacked direction of stator core 10, then side rib 28 and outer ribs 29 are inserted in corresponding recesses 15 and the depressed part 17 in each, and each insulator 20 one is combined in the stator core 10.In addition, in conjunction with after twining the stator coil that forms rotating magnetic field when importing power supply outward by each 12b of tooth portion of insulation film parts 19 and each insulator 20 insulation.
In the above embodiments, illustrational with situation about constituting in conjunction with the interior side rib 28 and the outer ribs 29 of each insulator 20 respectively on the depressed part that is recessed to form refrigerant flow in the outside that reduces groove that box pin joint moment of torsion (cogging torque) forms and yoke portion in each tooth portion, but, do not form in the structure of groove and depressed part along the stacked direction of stator core both sides be formed with accommodate respectively above-mentioned in the interior side rib accepting groove and the outer ribs accepting groove of side rib and outer ribs constitute also passable.
Claims (6)
1, a kind of motor stator that is equipped with insulator, include stator core and insulator, it is characterized in that: stator core by have ring-like yoke (yoke) portion and from yoke portion along radial direction outstanding and in order to form core slots along peripheral direction the interval is provided with stacked formation of multilayer conductive iron plate of a plurality of tooth portion; Insulator forms and is combined in both sides respectively along the stacked direction of stator core with insulating material is whole, comprises by contacting by side the yoke insulation division that forms along conduction iron plate stacked direction and yoke portion one, contact and protrude and guide with the integrated tooth insulation division of yoke insulation division, to the thickness direction of yoke insulation division and tooth insulation division the coil guider of the stator coil that is wrapped in yoke portion with tooth portion face.
2, the motor stator of outfit insulator according to claim 1 is characterized in that insulator also includes the interior side rib and the outer ribs of the protrusion formation that can contact yoke portion and tooth portion respectively.
3, the motor stator of outfit insulator according to claim 2 is characterized in that stator core is formed with the interior side rib accepting groove and the outer ribs accepting groove of accommodating interior side rib and outer ribs respectively respectively.
4, the motor stator of outfit insulator according to claim 3, the side rib accepting groove includes in tooth portion and protrudes the extension end concavity formation reduction box pin joint moment of torsion (coggingtorque) of certain amplitude is extended in the end along the peripheral direction of yoke portion groove in it is characterized in that.
5, the motor stator of outfit insulator according to claim 3 is characterized in that, the outer ribs accepting groove includes the depressed part that is recessed to form along the radial direction of yoke portion in the relative side of the tooth portion of yoke portion.
6, the motor stator of outfit insulator according to claim 1 is characterized in that insulator also includes the insulation film parts that form and be contained in each core slots inside with insulating material with film like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410072839 CN1780091A (en) | 2004-11-19 | 2004-11-19 | Stator of electric motor with insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410072839 CN1780091A (en) | 2004-11-19 | 2004-11-19 | Stator of electric motor with insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1780091A true CN1780091A (en) | 2006-05-31 |
Family
ID=36770251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410072839 Pending CN1780091A (en) | 2004-11-19 | 2004-11-19 | Stator of electric motor with insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1780091A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076027A1 (en) * | 2009-12-24 | 2011-06-30 | 中山大洋电机制造有限公司 | Motor stator structure |
| CN106253533A (en) * | 2015-06-08 | 2016-12-21 | 三菱电机株式会社 | Motor and compressor |
| WO2017023061A1 (en) * | 2015-08-03 | 2017-02-09 | 엘지이노텍 주식회사 | Housing and motor including same |
-
2004
- 2004-11-19 CN CN 200410072839 patent/CN1780091A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076027A1 (en) * | 2009-12-24 | 2011-06-30 | 中山大洋电机制造有限公司 | Motor stator structure |
| CN106253533A (en) * | 2015-06-08 | 2016-12-21 | 三菱电机株式会社 | Motor and compressor |
| CN106253533B (en) * | 2015-06-08 | 2019-05-07 | 三菱电机株式会社 | Motor and compressor |
| WO2017023061A1 (en) * | 2015-08-03 | 2017-02-09 | 엘지이노텍 주식회사 | Housing and motor including same |
| US10651703B2 (en) | 2015-08-03 | 2020-05-12 | Lg Innotek Co., Ltd. | Housing and motor including same |
| US10892661B2 (en) | 2015-08-03 | 2021-01-12 | Lg Innotek Co., Ltd. | Motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |