CN112054620A - Novel slot insulation structure's piece together formula motor stator - Google Patents
Novel slot insulation structure's piece together formula motor stator Download PDFInfo
- Publication number
- CN112054620A CN112054620A CN202011001710.8A CN202011001710A CN112054620A CN 112054620 A CN112054620 A CN 112054620A CN 202011001710 A CN202011001710 A CN 202011001710A CN 112054620 A CN112054620 A CN 112054620A
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- groove
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- insulator
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a novel spliced motor stator with a slot insulation structure, which comprises a stator tooth block; the stator tooth block is provided with a left slot insulator and a right slot insulator, the left slot insulator and the right slot insulator are mounted on the stator tooth block, and the coil is wound on the left slot insulator and the right slot insulator; stator tooth piece, left groove are insulating, right groove are insulating, the coil forms the stator substructure, and the stator substructure has a plurality of, and a plurality of stator substructure forms whole round stator structure through assembling. The slot insulation is arranged in a bilateral symmetry structure, the winding slots on the slot insulation are in a complete semicircular structure and are arranged at two ends of the left slot insulation and the right slot insulation, and an enameled wire is regularly wound on the stator tooth block along the winding slots during winding, so that the problem that the winding slots of the existing upper slot insulation structure and the existing lower slot insulation structure cannot be aligned can be completely solved; meanwhile, through the optimized design, the assembly process is more convenient, the number of parts is less, the manufacturing cost is lower, and the quality is more reliable.
Description
Technical Field
The invention relates to a novel spliced motor stator with a slot insulation structure, and belongs to the technical field of motors.
Background
With the rapid development of the economic society and the new generation of information technology, the global manufacturing industry is rapidly transforming and upgrading towards the direction of intellectualization and automation, the requirements of the related fields on the motor are more and more, and higher requirements are provided for the structural volume, the manufacturing cost and the like of the motor.
The stator is one of core parts of the motor and mainly comprises a stator core, a coil, slot insulation and the like. In the prior art, in order to reduce the size of a motor, a stator adopts a design scheme with high slot filling rate, a stator core in a corresponding motor stator adopts a block type structure, namely the stator core in the stator is formed by splicing a plurality of stator tooth blocks, a coil is wound separately before splicing, then the coil is wound on a single stator tooth block, and finally the circular stator is formed by splicing. Meanwhile, in order to prevent breakdown faults caused by contact of the coil and the stator tooth block, a layer of groove insulation structure made of plastic materials is added between the coil and the stator core, and the structure also occupies a certain space in the stator groove. Therefore, the groove insulation structure influences the performance of the motor, the motor size can be reduced through the reasonable structural design, the assembly convenience is guaranteed, and the manufacturing cost is reduced.
However, in the stator slot insulation structure of the existing block type motor, an upper structure and a lower structure are generally adopted, then winding slots are arranged on slot insulation, the winding slots corresponding to the upper slot insulation and the lower slot insulation are separated, complete alignment cannot be guaranteed after assembly, the problem of dislocation exists, and then an enameled wire cannot be placed in the winding slots in a regular and tidy manner when the coil is wound, so that the enameled wire between the coils is disordered and finally the iron core tooth block of the wound wire cannot be assembled, gaps between the coils in the slots can be influenced due to the fact that the coils are arranged irregularly, the coils are in contact extrusion with the coils when the coil is assembled in the limit condition, the insulation of the enameled wire is damaged, and the inter-turn short circuit risk exists.
Aiming at the problems, an effective solution is not found at home and abroad at present.
Disclosure of Invention
In order to solve the technical problem, the invention provides a block type motor stator with a novel groove insulation structure, which has regular winding and convenient assembly and can completely solve the problems of the existing upper and lower groove insulation structures.
The invention is realized by the following technical scheme.
The invention provides a novel spliced motor stator with a slot insulation structure, which comprises a stator tooth block; the stator tooth block is provided with a left slot insulator and a right slot insulator, the left slot insulator and the right slot insulator are mounted on the stator tooth block, and the coil is wound on the left slot insulator and the right slot insulator; the stator tooth blocks, the left slot insulation, the right slot insulation and the coils form a plurality of stator sub-structures, and the plurality of stator sub-structures are assembled to form a whole-circle stator structure; the winding support and the copper bar are connected on the whole-circle stator structure, the wire outlet ends of the coils of the plurality of stator sub-structures are divided into two parts, one part penetrates through the winding support to be connected with the neutral point of the copper bar, and the other part penetrates through the winding support to be led out of the three-phase line of the motor to be connected.
A plurality of left winding grooves are respectively arranged on two sides of the upper end surface of the left groove insulator, and a plane structure is reserved in the middle of each left winding groove; grooves are formed in the left side and the right side of the left slot insulator, and a left yoke part and a left shoulder part are respectively arranged on the front side and the rear side of the left slot insulator; the left yoke part is provided with a left positioning groove used for connecting a winding support, and one side of the left yoke part in insulation connection with the left groove is provided with a left wire outlet groove;
a plurality of right winding grooves are respectively arranged on two sides of the upper end surface of the right groove insulator, and a plane structure is reserved in the middle of the right winding grooves; the left side and the right side of the right slot insulator are both provided with lugs; the front side and the rear side of the right slot insulator are respectively provided with a right yoke part and a right shoulder part; and a right positioning groove for connecting the winding support is arranged on the right yoke, and a right wire outlet groove is formed in one side of the right yoke, which is connected with the right groove in an insulating manner.
The left winding groove and the right winding groove are semicircular, equal in size and consistent in number.
The groove and the lug are both arranged in the middle.
The lug is connected with the groove, the left shoulder portion is attached to the right shoulder portion, and the left yoke portion is attached to the right yoke portion.
The left winding groove and the right winding groove form a groove insulation structure, and the coil is wound on the groove insulation structure.
The groove is located on two sides of the coil in the winding direction of the left winding groove, and the lug is located on two sides of the coil in the winding direction of the right winding groove.
And a boss is arranged on one side of the winding support and connected with the left positioning groove and the right positioning groove, and a semicircular groove used for being connected with a copper bar and a plurality of holes used for leading out coil wire outlet heads are arranged on the other side of the winding support.
The left slot insulator, the right slot insulator and the winding support are all formed through one-time injection molding of plastic materials.
The left winding groove and the right winding groove correspond to each other left and right, and when a coil is wound, the left winding groove and the right winding groove are sequentially wound at the same position, and finally, an integral stator sub-structure is formed.
The invention has the beneficial effects that: the slot insulation is arranged in a bilateral symmetry structure, the winding slots on the slot insulation are in a complete semicircular structure and are arranged at two ends of the left slot insulation and the right slot insulation, and an enameled wire is regularly wound on the stator tooth block along the winding slots during winding, so that the problem that the winding slots of the existing upper slot insulation structure and the existing lower slot insulation structure cannot be aligned can be completely solved; meanwhile, through the optimized design, the assembly process is more convenient, the number of parts is less, the manufacturing cost is lower, and the quality is more reliable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the stator tooth block of FIG. 1 after winding;
FIG. 3 is a schematic view of a split joint structure of the stator tooth block of FIG. 1;
FIG. 4 is a schematic view of the stator tooth block of FIG. 1;
FIG. 5 is a schematic illustration of a splice structure of the left slot insulation and the right slot insulation of FIG. 1;
FIG. 6 is a schematic diagram of the structure of the left slot insulator of FIG. 1;
FIG. 7 is a schematic diagram of the structure of the right slot insulator of FIG. 1;
in the figure: 1-stator tooth block, 2-left slot insulation, 21-groove, 22-left winding slot, 23-left wire outlet slot, 24-left positioning slot, 25-left shoulder, 26-left yoke, 3-right slot insulation, 31-lug, 32-right winding slot, 33-right wire outlet slot, 34-right positioning slot, 35-right shoulder, 36-right yoke, 4-coil, 5-winding support and 6-copper bar.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in figures 1-7, a novel slot insulation structure's piece formula motor stator, including stator tooth piece 1 and coil 4, its characterized in that: the stator tooth block 1 is provided with a left slot insulator 2 and a right slot insulator 3, and a coil 4 is wound on the left slot insulator 2 and the right slot insulator 3; the stator tooth block 1, the left slot insulator 2, the right slot insulator 3 and the coil 4 form a plurality of stator sub-structures, and the plurality of stator sub-structures are assembled to form a full-circle stator structure; the whole-circle stator structure is connected with a winding support 5, and a copper bar 6 is arranged on the winding support 5; the wire outlet ends of the coils 4 of the plurality of stator sub-structures are divided into two parts, one part penetrates through the winding support 5 to be connected with a neutral point of the copper bar 6, and the other part penetrates through the winding support 5 to be connected with a three-phase wire leading out of the motor, so that a complete motor stator is formed.
A plurality of left winding grooves are respectively arranged on two sides of the upper end surface of the left groove insulator, and a plane structure is reserved in the middle of each left winding groove; grooves are formed in the left side and the right side of the left slot insulator, and a left yoke part and a left shoulder part are respectively arranged on the front side and the rear side of the left slot insulator; a left positioning groove used for connecting a winding support is formed in the left yoke, the winding support is in contact positioning with the left positioning groove, and a left wire outlet groove used for leading out a wire outlet head of the coil 4 is formed in one side, in insulation connection with the left groove, of the left yoke;
a plurality of right winding grooves are respectively arranged on two sides of the upper end surface of the right groove insulator, and a plane structure is reserved in the middle of the right winding grooves; the left side and the right side of the right slot insulator are both provided with lugs; the front side and the rear side of the right slot insulator are respectively provided with a right yoke part and a right shoulder part; and a right positioning groove used for connecting a winding support is arranged on the right yoke part, the winding support is in contact positioning with the right positioning groove, and a right wire outlet groove used for leading out a wire outlet head of the coil 4 is arranged on one side of the right yoke part in insulation connection with the right groove.
Further, the structures of the left slot insulator 2 and the right slot insulator 3 are completely the same except that the semicircular groove 21 and the lug 31 are different, so that the assembling sequence and the assembling direction are not required, and only the structure of the left slot insulator 2 and the structure of the right slot insulator 3 are matched with that of the stator tooth block 1, so that the assembling difficulty is reduced.
Further, the number of the left winding grooves and the right winding grooves is comprehensively determined according to the wire diameter, the number of turns and the like of the coil enameled wire.
Specifically, when the coil is wound, the wires can be arranged in the left winding groove 22 and the right winding groove 32 in order, and the wires cannot be dislocated, so that the automatic winding quality is ensured, the winding efficiency is improved, the groove fullness rate is improved to a certain extent, the gap between the coil and the coil is ensured, the coil and the coil are not insulated, the number of parts and the corresponding assembly link are reduced, the manufacturing cost is reduced, and the reliability of the motor is sufficiently guaranteed.
Furthermore, the flat structure left in the middle does not influence the flat cable, and can save materials and reduce the manufacturing cost.
The left winding groove 22 and the right winding groove 32 are semicircular, equal in size and consistent in number.
The recess 21 and the lug 31 are both centrally located.
Further, left side groove is insulating 2 and right groove is insulating 3 and is fixed a position through recess 21 and lug 31, and its location structure is neutral good, and the assembly is convenient, can realize automatic assembly, and later maintenance is also convenient.
The left winding slot 22 and the right winding slot 32 form a slot insulation structure, and the coil 4 is wound on the slot insulation structure.
The grooves 21 are located on two sides of the coil 4 along the winding direction of the left winding slot 22, and the lugs 31 are located on two sides of the coil 4 along the winding direction of the right winding slot 32.
And a boss is arranged on one side of the winding support 5 and is connected with the left positioning groove 24 and the right positioning groove 34, and a semicircular groove used for being connected with the copper bar 6 and a plurality of holes used for leading out wire outlets of the coil 4 are arranged on the other side of the winding support 5.
Further, the semicircular groove is used for positioning the copper bar 6.
Furthermore, a part of wire outlet heads of the coil 4 are connected with the copper bar 6 to form a common end, and the other wire outlet heads are connected with a three-phase wire leading out of the motor according to the design requirement.
The left slot insulator 2, the right slot insulator 3 and the winding support 5 are all formed by one-time injection molding of nylon or plastic materials with equivalent performance, and the purposes of simple processing technology and good size consistency are achieved.
The left winding slot 22 corresponds to the right winding slot 32 in the left-right direction, and when the coil 4 is wound, the left winding slot 22 and the right winding slot 32 are sequentially wound at the same position, and finally, an integral stator sub-structure is formed.
In conclusion, the stator slot insulation of the block type motor adopts a left and right symmetrical structure, and the winding slots on the slot insulation are of an integral structure, so that the coils are ensured to be arranged neatly, and the slot fullness rate of the motor is improved to a certain extent; meanwhile, the spliced whole-circle slot insulation structure is realized by splicing the stator tooth blocks, and the insulation performance of the motor is ensured; in addition, the winding support and the neutral point copper bar can be better fixed together by reasonably designing the groove insulation structure, the number of parts is small, the installation process is simpler, the manufacturing cost is lower, and the implementation is easy.
Claims (10)
1. The utility model provides a novel piece together formula motor stator of groove insulation system, includes stator tooth piece (1) and coil (4), its characterized in that: the stator tooth block (1) is provided with a left slot insulator (2) and a right slot insulator (3), and the coil (4) is wound on the left slot insulator (2) and the right slot insulator (3); the stator tooth block (1), the left slot insulator (2), the right slot insulator (3) and the coil (4) form a stator sub-structure; the stator sub-structures are a plurality of stator sub-structures, and the plurality of stator sub-structures are assembled to form a complete circle stator structure; the whole-circle stator structure is connected with a winding support (5), and a copper bar (6) is arranged on the winding support (5); the wire outlet ends of the coils (4) of the plurality of stator sub-structures are divided into two parts, one part penetrates through the winding support (5) to be connected with a neutral point of the copper bar (6), and the other part penetrates through the winding support (5) to be connected with a three-phase wire leading out of the motor.
2. The novel slot insulation structure of the block type motor stator of claim 1, wherein: a plurality of left winding grooves (22) are respectively arranged on two sides of the upper end surface of the left groove insulator (2), and a plane structure is reserved in the middle; grooves (21) are formed in the left side and the right side of the left slot insulator (2), and a left yoke portion (26) and a left shoulder portion (25) are respectively arranged on the front side and the rear side of the left slot insulator (2); a left positioning groove (24) used for connecting the winding support (5) is formed in the left yoke (26), and a left wire outlet groove (23) is formed in one side, connected with the left groove insulator (2), of the left yoke (26);
a plurality of right winding grooves (32) are respectively arranged on two sides of the upper end surface of the right groove insulator (3), and a plane structure is reserved in the middle; the left side and the right side of the right slot insulator (3) are provided with lugs (31); the front side and the rear side of the right slot insulator (3) are respectively provided with a right yoke part (36) and a right shoulder part (35); and a right positioning groove (34) used for connecting the winding support (5) is formed in the right yoke (36), and a right wire outlet groove (33) is formed in one side of the right yoke (36) connected with the right groove insulator (3).
3. The novel slot insulation structure of the block type motor stator of claim 2, wherein: the left winding groove (22) and the right winding groove (32) are semicircular, equal in size and consistent in number.
4. The novel slot insulation structure of the block type motor stator of claim 2, wherein: the groove (21) and the lug (31) are arranged in the center.
5. The novel slot insulation structure of the block type motor stator of claim 2, wherein: the lug (31) is connected with the groove (21), the left shoulder (25) is attached to the right shoulder (35), and the left yoke (26) is attached to the right yoke (36).
6. The novel slot insulation structure of the block type motor stator of claim 2, wherein: the left winding groove (22) and the right winding groove (32) form a groove insulation structure, and the coil (4) is wound on the groove insulation structure.
7. The novel slot insulation structure of the block type motor stator of claim 2, wherein: the groove (21) is located on two sides of the coil (4) in the winding direction of the left winding groove (22), and the lugs (31) are located on two sides of the coil (4) in the winding direction of the right winding groove (32).
8. The novel slot insulation structure of the block type motor stator of claim 1, wherein: and a boss is arranged on one side of the winding support (5), the boss is connected with the left positioning groove (24) and the right positioning groove (34), and a semicircular groove used for being connected with the copper bar (6) and a plurality of holes used for leading out wire outlets of the coil (4) are formed in the other side of the winding support (5).
9. The novel slot insulation structure of the block type motor stator of claim 1, wherein: the left slot insulator (2), the right slot insulator (3) and the winding support (5) are all formed by one-time injection molding of plastic materials.
10. The novel slot insulation structure of the block type motor stator of claim 6, wherein: the left winding groove (22) and the right winding groove (32) are corresponding left and right, and when the coil (4) is wound, the left winding groove (22) and the right winding groove (32) are sequentially wound at the same position to form an integral stator substructure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001710.8A CN112054620A (en) | 2020-09-22 | 2020-09-22 | Novel slot insulation structure's piece together formula motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001710.8A CN112054620A (en) | 2020-09-22 | 2020-09-22 | Novel slot insulation structure's piece together formula motor stator |
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| Publication Number | Publication Date |
|---|---|
| CN112054620A true CN112054620A (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011001710.8A Pending CN112054620A (en) | 2020-09-22 | 2020-09-22 | Novel slot insulation structure's piece together formula motor stator |
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| CN (1) | CN112054620A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953149A (en) * | 2021-02-24 | 2021-06-11 | 同济大学 | Radial magnetic flux birotor motor |
| CN114583865A (en) * | 2022-04-06 | 2022-06-03 | 珠海格力电器股份有限公司 | Insulating skeleton, motor and compressor |
| WO2023130557A1 (en) * | 2022-01-10 | 2023-07-13 | 淮安威灵电机制造有限公司 | Insulating frame, stator assembly, and motor |
-
2020
- 2020-09-22 CN CN202011001710.8A patent/CN112054620A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953149A (en) * | 2021-02-24 | 2021-06-11 | 同济大学 | Radial magnetic flux birotor motor |
| CN112953149B (en) * | 2021-02-24 | 2022-09-20 | 同济大学 | Radial magnetic flux birotor motor |
| WO2023130557A1 (en) * | 2022-01-10 | 2023-07-13 | 淮安威灵电机制造有限公司 | Insulating frame, stator assembly, and motor |
| CN114583865A (en) * | 2022-04-06 | 2022-06-03 | 珠海格力电器股份有限公司 | Insulating skeleton, motor and compressor |
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