CN109217522B - End insulation assembly of direct winding motor stator - Google Patents
End insulation assembly of direct winding motor stator Download PDFInfo
- Publication number
- CN109217522B CN109217522B CN201811284189.6A CN201811284189A CN109217522B CN 109217522 B CN109217522 B CN 109217522B CN 201811284189 A CN201811284189 A CN 201811284189A CN 109217522 B CN109217522 B CN 109217522B
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- Prior art keywords
- semi
- wall parts
- wall
- ring
- notch
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- 238000004804 winding Methods 0.000 title claims abstract description 58
- 238000009413 insulation Methods 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 210000001503 joint Anatomy 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
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses an end insulation assembly of a direct winding motor stator, and belongs to the technical field of motor stators. The coil insulation support comprises an outer wall part, a plurality of inner wall parts and a plurality of winding support parts, wherein a notch is formed between the adjacent inner wall parts, the head ends of the inner wall parts are tongue-tip-shaped, and a bulge and a guide slot formed between the bulges are respectively arranged on the outer vertical surfaces of the adjacent inner wall parts close to the notch; the inner edges of the two semi-ring sheets are jointly formed with a plurality of stop blocks and notches positioned between the adjacent stop blocks; the outer wall part is symmetrically provided with mounting grooves and buckling holes positioned between the mounting grooves, and the outer edge of each semi-ring piece is provided with a clamping foot and a bolt; the stop extends between the head ends of adjacent inner wall portions and the recess accommodates the head ends of the inner wall portions. The assembly is convenient to disassemble and assemble and not easy to deform, and the stator winding collapse and the wires at the end parts of the stator winding are prevented from being exposed out of the assembly.
Description
Technical Field
The invention relates to an end insulation assembly of a direct winding motor stator, and belongs to the technical field of motor stator accessories.
Background
The winding framework is used for insulation between the stator iron core and the stator winding (coil winding), the stator winding is wound on the winding framework in a direct winding mode and embedded in the stator slot, and the winding framework of the direct winding type concentrated winding motor needs to reserve corresponding moving space for winding needle wiring. The existing stator winding is usually loose, so that the stator winding is easy to collapse towards an inner hole of a stator, and an end lead of the stator winding is easy to expose out of a winding framework, so that a lead (an enameled wire) of the stator winding is easy to suffer from friction damage of foreign matters, and therefore the stator winding is usually required to be shaped and bound and fixed by gummed paper or a rope.
The prior art winding framework comprises a plurality of inner wall parts, because the stator winding has extrusion inner wall parts (the higher the slot filling rate is, the more extrusion is, the inner wall parts are easy to incline and deform towards the inner hole of the stator, once the inner wall parts deform, the stator winding collapses towards the inner hole of the stator, after the stator winding collapses, part of wires in the loose stator winding easily enter the inner hole of the stator from the notch between the adjacent inner wall parts, so that the rotor is rubbed to hurt the enameled wire.
Therefore, practical improvement of the existing winding framework for the stator coil of the direct-winding motor is necessary.
Disclosure of Invention
The invention aims to provide an end insulation assembly of a direct winding motor stator, which can prevent stator windings from collapsing and prevent wires at the ends of the stator windings from being exposed outwards, and the end insulation assembly is convenient to disassemble and assemble and is not easy to deform.
In order to solve the technical problems, the invention provides the following technical scheme:
the end insulation assembly of the stator of the direct winding type motor consists of coil insulation brackets which are vertically symmetrically arranged at two ends of a stator core and a coil protection end cover which is at least arranged on one of the coil insulation brackets, wherein the coil protection end cover consists of two symmetrical semi-ring sheets which are in a shape of a circular ring, inner wall parts which are circumferentially arranged at intervals and a plurality of winding support parts which extend along the radial direction and are connected with the inner wall parts and the outer wall parts for supporting stator windings, a notch is arranged between every two adjacent inner wall parts, the head ends of the inner wall parts are in a shape of a tongue tip, and protrusions and guide slots formed between the protrusions are respectively arranged on the outer vertical surfaces of the two adjacent inner wall parts which are close to the notch; the inner edges of the two semi-ring sheets are respectively axially extended with a semi-ring retainer ring, and the semi-ring retainer rings of the two semi-ring sheets are jointly formed with a plurality of stop blocks and notches positioned between the adjacent stop blocks; the outer wall part is symmetrically provided with mounting grooves and buckling holes which are arranged between the mounting grooves and are arranged on the outer wall part, and each semi-ring piece is provided with clamping feet which are matched with the buckling holes and bolts which are respectively arranged at two ends of the outer edge and matched with the mounting grooves at the outer edge; the coil protection end cover is detachably arranged in the mounting groove and the buckling hole of the coil insulation support through the bolts and the clamping pins of the two semi-ring sheets, the stop block just stretches into the space between the head ends of the adjacent inner wall parts, and the notch accommodates the head ends of the inner wall parts.
The mounting groove is provided with a mounting groove opening and a mounting groove bottom which are communicated with each other, the mounting groove opening and the mounting groove bottom form an inverted T shape, and the mounting groove opening is a notch arranged on the edge of the outer wall part
The width of the mounting notch is slightly larger than the diameter of 1 bolt; the width of the bottom of the installation groove is slightly larger than the diameter of 2 bolts.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the coil protection end cover is of a block structure formed by two semi-ring sheets in a butt joint mode, after the coil protection end cover is mounted on a coil insulation support, a naturally molded stator winding is effectively restrained in the coil insulation support, loose wires (enameled wires) at the end part of the stator winding are not damaged by friction of foreign matters due to the fact that the enameled wires are exposed out of the coil insulation support, the end part of the stator winding is not required to be bound and fixed by using gummed paper or a rope, the coil insulation support is provided with a mounting groove and a buckling hole, and the coil protection end cover can be mounted in the mounting groove and the buckling hole of the coil insulation support through bolts and clamping pins, so that the coil protection end cover has the characteristics of convenience and rapidness in assembly and disassembly;
after the coil insulation support is provided with the protrusions, the strength of the inner wall part can be enhanced, so that the inner wall part is not easy to deform obliquely towards the inner hole of the stator due to extrusion of the stator winding (especially under the condition of high slot filling rate), the stator winding can be prevented from collapsing towards the inner hole of the stator, and the slots can be sealed by means of interphase insulation paper due to the arrangement of the guide slots, so that wires of the stator winding can be effectively prevented from entering the inner hole of the stator from the slots;
the inner wall part of the coil insulation support is in a tongue-tip shape, a corresponding moving space is reserved for winding wires, winding operation of the stator coil of the direct winding motor is convenient, winding interference is small, winding is efficient, the coil protection end covers are respectively provided with a stop block and a notch, when the stop block stretches into the position between the head ends of the adjacent inner wall parts, the stator winding can be prevented from collapsing towards the inner holes of the stator, enameled wires in the stator winding cannot extend into the inner holes of the stator from the winding space, friction damage of a rotor and electric leakage caused by the stator winding due to the wires can be avoided, the notch is matched with the head ends of the inner wall parts, the coil protection end covers covered can play a limiting role, the coil protection end covers are prevented from sinking due to deformation and displacement, and the reliability of covering is improved.
Drawings
FIG. 1 is a perspective view of an end insulation assembly of an inventive direct wound motor stator;
FIG. 2 is a top view of the inventive half ring piece;
FIG. 3 is a perspective view of the inventive half ring piece;
FIG. 4 is a top view of an inventive coil insulation support;
FIG. 5 is a perspective view of the inventive coil insulation support;
FIG. 6 is another perspective view of the inventive coil insulation support;
fig. 7 is a perspective view of the invention assembled to a stator.
Detailed Description
Referring to fig. 1 to 7, an end insulation assembly of a stator of a direct winding type motor is composed of coil insulation brackets K symmetrically installed to both ends of a stator core G up and down and a coil protection end cover installed to at least one of the coil insulation brackets, wherein the coil protection end cover is composed of two symmetrical semi-ring sheets 4. Wherein, each coil insulation bracket K comprises an outer wall part 1 in a circular ring shape, an inner wall part 2 arranged at intervals along the circumferential direction, and a plurality of winding support parts 3 which extend along the radial direction and are connected with the inner wall part 2 and the outer wall part 1 and are used for supporting stator windings (known parts are not shown), a notch 20 is arranged between two adjacent inner wall parts 2, the head ends 2-1 of the inner wall parts 2 are all in a tongue tip shape, and the outer vertical surfaces of the two adjacent inner wall parts 2 close to the notch 20 are respectively provided with a bulge 21 and a guide slot 22 for inserting phase insulation paper (not shown) formed between the bulges 21; the inner edges of the two semi-ring sheets 4 are respectively axially extended with a semi-ring retainer ring, and the semi-ring retainer rings of the two semi-ring sheets 4 are jointly formed with a plurality of stop blocks 4-2 and notches 4-1 positioned between the adjacent stop blocks 4-2; the outer wall part 1 is symmetrically provided with mounting grooves 11 and buckling holes 12 which are arranged between the mounting grooves 11 and are arranged on the outer wall part, and each half ring piece 4 is provided with clamping feet 42 which are matched with the buckling holes 12 at the outer edge and inserted pins 41 which are respectively arranged at the two ends of the outer edge and are matched with the mounting grooves 11; the coil protection end cover is detachably mounted in the mounting groove 11 and the buckling hole 12 of the coil insulation bracket K through the bolts 41 and the clamping pins 42 of the two semi-ring sheets 4, the stop block 4-2 just stretches into the interval between the head ends 2-1 of the adjacent inner wall parts 2, and the notch 4-1 accommodates the head ends 2-1 of the inner wall parts 2.
In order to more conveniently and rapidly realize the installation of the coil protection end cover and the coil insulation support K, the installation groove 11 is designed into an installation groove opening 11-1 and an installation groove bottom 11-2 which can be communicated, the installation groove opening 11-1 and the installation groove bottom 11-2 form an inverted T shape, and the installation groove opening 11-1 is a notch (gap) formed on the edge of the outer wall part 1; the width of the installation notch 11-1 is slightly larger than the diameter of 1 bolt 41, and the width of the installation groove bottom 11-2 is slightly larger than the diameter of 2 bolts 41, so that the bolts 41 can smoothly enter and exit the installation groove 11, and the coil protection end cover can be disassembled and assembled from the outer side (opposite surface) of the coil insulation bracket K without interference.
In the present embodiment, as shown in fig. 5, two pairs of buckling holes 12 are respectively distributed between the two mounting grooves 11, and four buckling holes 12 are arranged in a central symmetry manner, as shown in fig. 3, and accordingly, two buckling pins 42 are provided for each half ring 4.
The coil insulation support K and the coil protection end cover are all plastic insulation pieces.
The inner side surface of the outer wall portion 1, the top surface of the winding support portion 3, and the outer vertical surface of the inner wall portion 2 corresponding to the inner side surface of the outer wall portion 1 together form a winding space.
The two semi-ring sheets 4 are combined to form a block type structure.
In this embodiment, the coil protecting end cover has 6 half ring stoppers and 6 recesses, and the head 2-1 of the inner wall 2 has 6 recesses.
In this embodiment, the coil protecting end cover is mounted on a coil insulating bracket K located above; the coil insulation support K is provided with a positioning pin 13 on the contact surface with the stator core G, and the coil insulation support K is symmetrically mounted in a positioning hole (not shown) formed in the end surface of the stator core G through the positioning pin 13. When the stator 100 is specifically assembled, two coil insulation brackets K are first mounted on the upper and lower ends of the stator core G, and then the coil protection end covers are mounted on one coil insulation bracket K located above, and fig. 7 shows the mounting state of the coil protection end covers, i.e., the two half ring pieces 4.
Claims (3)
1. An end insulation assembly of a direct wound motor stator, characterized in that: the coil protection end cover consists of two semi-ring sheets with symmetrical structures, wherein,
each coil insulation support comprises an outer wall part in a circular ring shape, inner wall parts arranged at intervals along the circumferential direction, and a plurality of winding support parts which extend along the radial direction and are connected with the inner wall parts and the outer wall parts for supporting a stator winding, a notch is arranged between every two adjacent inner wall parts, the head ends of the inner wall parts are in a tongue tip shape, and protrusions and guide slots formed between the protrusions are respectively arranged on outer vertical surfaces of the two adjacent inner wall parts, which are close to the notch;
the inner edges of the two semi-ring sheets are respectively axially extended with a semi-ring retainer ring, and the semi-ring retainer rings of the two semi-ring sheets are jointly formed with a plurality of stop blocks and notches positioned between the adjacent stop blocks;
the outer wall part is symmetrically provided with mounting grooves and buckling holes which are arranged between the mounting grooves and are arranged on the outer wall part, and each semi-ring piece is provided with clamping feet which are matched with the buckling holes and bolts which are respectively arranged at two ends of the outer edge and matched with the mounting grooves at the outer edge;
the coil protection end cover is detachably arranged in the mounting groove and the buckling hole of the coil insulation support through the bolts and the clamping pins of the two semi-ring sheets, the stop block just stretches into the space between the head ends of the adjacent inner wall parts, and the notch accommodates the head ends of the inner wall parts.
2. The end insulation assembly of claim 1, wherein: the mounting groove is provided with a mounting groove opening and a mounting groove bottom which are communicated, the mounting groove opening and the mounting groove bottom form an inverted T shape, and the mounting groove opening is a notch formed in the edge of the outer wall part.
3. The end insulation assembly of claim 2, wherein: the width of the mounting notch is slightly larger than the diameter of 1 bolt; the width of the bottom of the installation groove is slightly larger than the diameter of 2 bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284189.6A CN109217522B (en) | 2018-10-17 | 2018-10-17 | End insulation assembly of direct winding motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284189.6A CN109217522B (en) | 2018-10-17 | 2018-10-17 | End insulation assembly of direct winding motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109217522A CN109217522A (en) | 2019-01-15 |
| CN109217522B true CN109217522B (en) | 2024-03-15 |
Family
ID=64997537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811284189.6A Active CN109217522B (en) | 2018-10-17 | 2018-10-17 | End insulation assembly of direct winding motor stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109217522B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701832B (en) * | 2020-11-12 | 2022-07-19 | 奇瑞新能源汽车股份有限公司 | Stator insulating boot, motor stator and motor |
| CN112688461A (en) * | 2021-01-27 | 2021-04-20 | Abb瑞士股份有限公司 | Stator of motor and motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008042959A (en) * | 2006-08-01 | 2008-02-21 | Aichi Elec Co | Motor |
| JP2011139549A (en) * | 2009-12-25 | 2011-07-14 | Fujitsu General Ltd | Insulator and stator of motor |
| CN204271861U (en) * | 2014-12-31 | 2015-04-15 | 拉法特伺服电机公司 | Insulation thermoplastic end cap and centralized winding synchronous machine |
| CN204408061U (en) * | 2015-01-31 | 2015-06-17 | 中山大洋电机股份有限公司 | A kind of plastic packaging motor |
| CN105317839A (en) * | 2015-12-14 | 2016-02-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing stator component and preparation method thereof |
| CN208971275U (en) * | 2018-10-17 | 2019-06-11 | 浙江迪贝电气股份有限公司 | A kind of overhang insulation component of directly-wound motor stator |
-
2018
- 2018-10-17 CN CN201811284189.6A patent/CN109217522B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008042959A (en) * | 2006-08-01 | 2008-02-21 | Aichi Elec Co | Motor |
| JP2011139549A (en) * | 2009-12-25 | 2011-07-14 | Fujitsu General Ltd | Insulator and stator of motor |
| CN204271861U (en) * | 2014-12-31 | 2015-04-15 | 拉法特伺服电机公司 | Insulation thermoplastic end cap and centralized winding synchronous machine |
| CN204408061U (en) * | 2015-01-31 | 2015-06-17 | 中山大洋电机股份有限公司 | A kind of plastic packaging motor |
| CN105317839A (en) * | 2015-12-14 | 2016-02-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic bearing stator component and preparation method thereof |
| CN208971275U (en) * | 2018-10-17 | 2019-06-11 | 浙江迪贝电气股份有限公司 | A kind of overhang insulation component of directly-wound motor stator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109217522A (en) | 2019-01-15 |
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