CN109245373B - Direct winding type motor stator is with guiding socket joint fixed knot of interphase insulation paper constructs - Google Patents
Direct winding type motor stator is with guiding socket joint fixed knot of interphase insulation paper constructs Download PDFInfo
- Publication number
- CN109245373B CN109245373B CN201811284188.1A CN201811284188A CN109245373B CN 109245373 B CN109245373 B CN 109245373B CN 201811284188 A CN201811284188 A CN 201811284188A CN 109245373 B CN109245373 B CN 109245373B
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- China
- Prior art keywords
- stator
- notch
- insulating paper
- interphase insulating
- adjacent
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- 230000016507 interphase Effects 0.000 title claims abstract description 39
- 238000004804 winding Methods 0.000 title claims abstract description 38
- 238000009413 insulation Methods 0.000 title abstract description 42
- 230000007704 transition Effects 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses a guide socket fixing structure of interphase insulating paper for a direct winding motor stator, and belongs to the technical field of motors. A stator slot is formed between adjacent stator teeth of the stator core, two stator tooth arm parts and two insulation tooth arm parts are respectively arranged at the end parts of each stator tooth and the end parts of each insulation tooth, a corresponding first notch and a corresponding second notch are respectively arranged between the adjacent stator tooth arm parts and between the adjacent insulation tooth arm parts, coil limiting ribs and guide slots are respectively arranged on the outer wall vertical surfaces of the adjacent insulation tooth arm parts close to the second notch, and the coil limiting ribs and the guide slots are deviated from the center inner hole of the stator core; the interphase insulating paper is provided with a vertical surface, two furling surfaces and two unfolding surfaces; the interphase insulating paper is inserted into the guide slot by the vertical face so as to seal the first notch, and the two display surfaces are accommodated in the stator slots and the end edges of the display surfaces are abutted against the bottoms of the stator slots. The invention can ensure that the gap of the interphase insulating paper guide socket is sufficient to seal the first notch and insulate adjacent phase stator windings.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a guide socket fixing structure of interphase insulating paper for a direct winding motor stator.
Background
The stator includes stator core and stator winding (coil winding), etc. the stator core includes annular yoke portion and inwards stretches out a plurality of teeth from the yoke portion, forms the stator groove between the adjacent tooth, leaves the stator notch between the tooth point of adjacent tooth, and the stator still includes two wire winding skeletons generally, and these two wire winding skeletons are installed in stator core's both ends, and stator winding's wire (enameled wire) is through concentrated winding mode direct winding on wire winding skeletons and make stator winding inlay in the stator groove, and wire winding skeletons are used for keeping apart stator winding and stator core's axial end to be used for supporting stator winding.
In order to insulate the adjacent heterogeneous stator windings in the circumferential direction, interphase insulating paper arranged on the winding framework needs to be accommodated in each stator slot, and as the interphase insulating paper does not have the function of blocking the stator slot, wires are easy to enter the inner hole of the stator from the stator slot, so that burning loss accidents occur to the stator windings.
For concentrated winding type windings with relatively high slot filling rate, the windings of each phase wound on the stator teeth are very close to be nearly contacted in the slots, so that interphase insulating paper is difficult to insert. In addition, since the stator windings are wound too fully, the stator windings are prone to having their wires slipping out of the stator slots and unimpeded into the stator bore, thereby contacting the rotor disposed within the stator bore, resulting in a burnout event.
Disclosure of Invention
The invention aims to provide a guide socket fixing structure of interphase insulating paper for a direct winding motor stator, which not only can insulate adjacent phase stator windings, but also can realize the sealing of the notch of a stator slot, effectively prevent wires of the stator windings from entering a central inner hole of the stator from the stator slot, and especially ensure sufficient gap of guide socket under the condition of high slot full rate.
In order to solve the technical problems, the invention provides the following technical scheme:
the stator core is provided with a plurality of stator teeth, stator grooves are formed between the adjacent stator teeth, each coil insulation support is provided with insulation teeth which are equal to the number of the stator teeth and are attached to the corresponding stator teeth one by one, the end part of each stator tooth is provided with two stator tooth arm parts which extend towards two sides respectively, the adjacent stator tooth arm parts are separated to form a first notch, the end part of each insulation tooth is provided with two insulation tooth arm parts which extend towards two sides respectively, a second notch is formed between the adjacent insulation tooth arm parts, the second notch corresponds to the first notch one by one, and the improvement point is that coil limit ribs and guide slots formed between the coil limit ribs are respectively arranged on the outer wall vertical surfaces of the adjacent two insulation tooth arm parts which are close to the second notch in a protruding mode, and the coil limit ribs and the inner walls of the guide slots are deviated from the center inner holes of the stator core; the interphase insulating paper is formed by forming a vertical surface, two opposite folding surfaces which are folded towards the inner surface of the vertical surface and are not connected into a whole, and two display surfaces which are respectively turned outwards towards the outer surfaces of the two folding surfaces, wherein the display surfaces and the folding surfaces are in transition through respective folding ridges; the interphase insulating paper is inserted into the guide slot by the vertical face so as to close the first notch, the two display surfaces of the interphase insulating paper are contained in the stator slots, and the end edges of the two display surfaces are abutted against the bottoms of the stator slots.
In order to improve the elasticity of the display surface and the folding surface, the end edge of the display surface is elastically abutted against the bottom of the stator groove, and the span between the ridge folds is smaller than the width of the vertical surface.
The two spreading surfaces of the interphase insulating paper are bilaterally symmetrical, and the two folding surfaces are bilaterally symmetrical.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the coil limiting ribs play a role in resisting the inclination of the stator winding (coil) towards the guide slot, and particularly, the coil limiting ribs play a role in resisting the inclination of the stator winding (coil) towards the guide slot, in the case of high slot fullness, a sufficient socket gap for interphase insulating paper is reserved for the guide slot, so that the guide slot is reliable and effective without being similar to dummy, the coil limiting ribs and the inner wall of the guide slot deviate from the central inner hole of the stator core, when the interphase insulating paper is inserted into the guide slot, the first slot is closed, the interphase insulating paper plays a role in slot insulation, and can effectively prevent wires of the stator winding from entering the central inner hole of a stator from the stator slot, so that the wires of the stator winding are prevented from being damaged by friction of a rotor, triggering leakage is avoided, and meanwhile, a certain noise reduction effect is played for the motor;
2. interphase insulation paper design is unique, it has facade, draws in the face, fold the spine and the exhibition face to this interphase insulation paper structure and coil insulation support's direction slot, the spacing muscle looks adaptation of coil, thereby form specific direction socket and spigot joint fixed knot and construct, make the stator play fine interphase insulation, two exhibition faces are used for the insulation of adjacent out of phase stator winding in the circumference promptly, and draw in the face and the transition fit design of exhibition face through the spine of folding, make interphase insulation paper still have certain elasticity.
Drawings
FIG. 1 is a schematic illustration of a guide socket fixing structure of interphase insulating paper for a stator of a direct wound motor of the present invention (stator windings are not shown for clarity of the drawing);
fig. 2 is an enlarged view of a portion a of fig. 1;
fig. 3 is a perspective view of a stator core;
FIG. 4 is a front view of the interphase insulating paper of the present invention;
FIG. 5 is a perspective view of interphase insulating paper;
FIG. 6 is a top view of a coil insulation support;
FIG. 7 is a perspective view of the coil insulation support;
fig. 8 is a perspective view of another view of the coil insulation support;
fig. 9 is a top view of a coil insulation support mounted to an end face of a stator core;
FIG. 10 is an enlarged view of portion B of FIG. 9;
fig. 11 is a perspective view of a coil insulation support mounted to an end face of a stator core.
Detailed Description
Referring to fig. 1 to 11, in a guiding socket fixing structure of interphase insulation paper for a stator of a direct winding type motor, the interphase insulation paper 1 is provided to be inserted into a coil insulation support 3, the coil insulation support 3 is installed at two ends of a stator core 2 in a vertically symmetrical manner, the stator core 2 is provided with a plurality of stator teeth 21, stator slots 20 are formed between adjacent stator teeth 21, each coil insulation support 3 is provided with insulation teeth 31 with the same number of teeth as the stator teeth and is attached to corresponding stator teeth 21 one by one, the end of each stator tooth 21 is provided with two stator tooth arm portions 211 protruding towards two sides respectively, adjacent stator tooth arm portions 211 are separated to form a first notch 200, the end of each insulation tooth 31 is provided with two insulation tooth arm portions 311 protruding towards two sides respectively, a second notch 300 is formed between adjacent insulation tooth arm portions 311, the second notch 300 corresponds to the first notch 200, the improvement is characterized in that coil limit ribs 311-1 and guiding slots 311-2 formed between the coil limit ribs 311-1 are respectively protruded on outer wall vertical surfaces of the adjacent two insulation tooth arm portions 311 close to the second notch 300, and the guiding slots 311-2 are not deviated from the inner holes (i.e. the inner holes 311-2 are not deviated from the inner holes of the inner core 20-2); the interphase insulating paper 1 is formed by forming a vertical surface 11, two opposite folding surfaces 12 which are folded towards the inner surface of the vertical surface 11 and are not connected into a whole, and two display surfaces 14 which are respectively turned outwards towards the outer surfaces of the two folding surfaces 12, wherein the display surfaces 14 and the folding surfaces 12 are in transition through respective folding ridges 13; the interphase insulating paper 1 is inserted into the guide slot 311-2 by the vertical surface 11 thereof to close the first notch 200, the two display surfaces 14 of the interphase insulating paper 1 are accommodated in the stator slots 20, and the end edges of the two display surfaces 14 are abutted against the bottom of the stator slots 20, so that the two display surfaces 14 of the interphase insulating paper 1 are used for insulating the circumferentially adjacent out-of-phase stator windings (not shown).
The first slot 200 is the slot of the so-called stator slot 20; before the interphase insulating paper 1 is inserted, the second notch 300 is correspondingly communicated with the first notch 200.
In order to improve the elasticity of the display surface 14 and the folding surface 12, the end edge of the display surface 14 is more elastically abutted against the bottom of the stator groove 20, and the span between the folded ridges 13 is smaller than the width of the vertical surface 11.
The two spreading surfaces 14 of the interphase insulating paper 1 are symmetrical left and right, and the two gathering surfaces 12 are symmetrical left and right.
Each stator slot 20 is provided with a known adjacent phase stator coil (winding), and the two facing surfaces 14 of the phase insulation paper 1 are arranged between the stator coils of the adjacent phase to perform phase insulation.
As shown in fig. 9, the coil insulation bracket 3 is located above the stator core 2, the insulation teeth 31 are also located above the stator teeth 21, and the coil stopper ribs 311-1 on the outer vertical surfaces of the insulation tooth arm portions 311 located on the left and right sides of each insulation tooth 31 and the slot inner walls 311-20 of the guide slots 311-2 are offset in the outer radial direction, so that they do not overlap with the corresponding stator tooth arm portions 211.
The coil insulation support 3 is provided with three positioning pins H1 on the contact surface with the stator core 2, and the coil insulation support 3 is fixedly installed in a positioning hole H0 formed in the end face of the stator core 2 through the positioning pins H1.
Claims (3)
1. A guiding socket fixing structure of interphase insulating paper for a direct winding motor stator is characterized in that the interphase insulating paper is inserted onto a coil insulating support, the coil insulating support is installed at two ends of a stator core in an up-down symmetrical mode, the stator core is provided with a plurality of stator teeth, stator grooves are formed between the adjacent stator teeth, each coil insulating support is provided with insulating teeth with the same number as the stator teeth and are attached to the corresponding stator teeth one by one, the end part of each stator tooth is provided with two stator tooth arm parts which extend towards two sides respectively, the adjacent stator tooth arm parts are separated to form a first notch, the end part of each insulating tooth is provided with two insulating tooth arm parts which extend towards two sides respectively, a second notch is formed between the adjacent insulating tooth arm parts, and the second notch corresponds to the first notch one by one;
the interphase insulating paper is formed by forming a vertical surface, two opposite folding surfaces which are folded towards the inner surface of the vertical surface and are not connected into a whole, and two display surfaces which are respectively turned outwards towards the outer surfaces of the two folding surfaces, wherein the display surfaces and the folding surfaces are in transition through respective folding ridges;
the interphase insulating paper is inserted into the guide slot by the vertical face so as to close the first notch, the two display surfaces of the interphase insulating paper are contained in the stator slots, and the end edges of the two display surfaces are abutted against the bottoms of the stator slots.
2. The guide socket fixing structure as claimed in claim 1, wherein the span between the ridge portions is smaller than the width of the elevation.
3. The guide socket fixation structure according to claim 1 or 2, wherein: the two spreading surfaces of the interphase insulating paper are bilaterally symmetrical, and the two gathering surfaces are bilaterally symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284188.1A CN109245373B (en) | 2018-10-17 | 2018-10-17 | Direct winding type motor stator is with guiding socket joint fixed knot of interphase insulation paper constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284188.1A CN109245373B (en) | 2018-10-17 | 2018-10-17 | Direct winding type motor stator is with guiding socket joint fixed knot of interphase insulation paper constructs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109245373A CN109245373A (en) | 2019-01-18 |
| CN109245373B true CN109245373B (en) | 2024-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811284188.1A Active CN109245373B (en) | 2018-10-17 | 2018-10-17 | Direct winding type motor stator is with guiding socket joint fixed knot of interphase insulation paper constructs |
Country Status (1)
| Country | Link |
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| CN (1) | CN109245373B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019124206A1 (en) * | 2019-09-10 | 2021-03-11 | Audi Ag | Electrical machine and method for applying at least one winding to a winding carrier of an electrical machine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1198722A (en) * | 1997-09-18 | 1999-04-09 | Denso Corp | Armature of dynamoelectric machine |
| JP2011139549A (en) * | 2009-12-25 | 2011-07-14 | Fujitsu General Ltd | Insulator and stator of motor |
| JP2013118717A (en) * | 2011-12-01 | 2013-06-13 | Toshiba Corp | Stator for rotary electric machines, inter-phase insulating sheet for rotary electric machines, rotary electric machine, and motor vehicle |
| WO2013110656A1 (en) * | 2012-01-26 | 2013-08-01 | Continental Automotive Gmbh | Rotor for a rotating electric machine |
| CN105099013A (en) * | 2014-04-23 | 2015-11-25 | 德昌电机(深圳)有限公司 | Stator assembly of motor and motor with stator assembly |
| CN106160294A (en) * | 2016-08-09 | 2016-11-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor electric motor, motor stator and electrical machine insulation skeleton thereof |
| CN107104531A (en) * | 2017-06-13 | 2017-08-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulation frame for stator, stator module and motor |
| CN107863832A (en) * | 2016-09-21 | 2018-03-30 | 本田技研工业株式会社 | Stator and its manufacture method |
| WO2018158871A1 (en) * | 2017-03-01 | 2018-09-07 | E-Tec株式会社 | Interphase insulating paper, stator core, and coil insertion machine |
| CN208971271U (en) * | 2018-10-17 | 2019-06-11 | 浙江迪贝电气股份有限公司 | The guiding socket joint fixed structure of directly-wound motor stator phase insulation paper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6870292B2 (en) * | 2001-11-28 | 2005-03-22 | Nissan Motor Co., Ltd. | Stator for motor |
-
2018
- 2018-10-17 CN CN201811284188.1A patent/CN109245373B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1198722A (en) * | 1997-09-18 | 1999-04-09 | Denso Corp | Armature of dynamoelectric machine |
| JP2011139549A (en) * | 2009-12-25 | 2011-07-14 | Fujitsu General Ltd | Insulator and stator of motor |
| JP2013118717A (en) * | 2011-12-01 | 2013-06-13 | Toshiba Corp | Stator for rotary electric machines, inter-phase insulating sheet for rotary electric machines, rotary electric machine, and motor vehicle |
| WO2013110656A1 (en) * | 2012-01-26 | 2013-08-01 | Continental Automotive Gmbh | Rotor for a rotating electric machine |
| CN105099013A (en) * | 2014-04-23 | 2015-11-25 | 德昌电机(深圳)有限公司 | Stator assembly of motor and motor with stator assembly |
| CN106160294A (en) * | 2016-08-09 | 2016-11-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor electric motor, motor stator and electrical machine insulation skeleton thereof |
| CN107863832A (en) * | 2016-09-21 | 2018-03-30 | 本田技研工业株式会社 | Stator and its manufacture method |
| WO2018158871A1 (en) * | 2017-03-01 | 2018-09-07 | E-Tec株式会社 | Interphase insulating paper, stator core, and coil insertion machine |
| CN107104531A (en) * | 2017-06-13 | 2017-08-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulation frame for stator, stator module and motor |
| CN208971271U (en) * | 2018-10-17 | 2019-06-11 | 浙江迪贝电气股份有限公司 | The guiding socket joint fixed structure of directly-wound motor stator phase insulation paper |
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| Publication number | Publication date |
|---|---|
| CN109245373A (en) | 2019-01-18 |
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