CN113890241A - Skeleton assembly, winding method thereof and motor - Google Patents
Skeleton assembly, winding method thereof and motor Download PDFInfo
- Publication number
- CN113890241A CN113890241A CN202111137717.7A CN202111137717A CN113890241A CN 113890241 A CN113890241 A CN 113890241A CN 202111137717 A CN202111137717 A CN 202111137717A CN 113890241 A CN113890241 A CN 113890241A
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- Prior art keywords
- framework
- skeleton
- assembly
- blocks
- slots
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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
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/085—Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- 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
- H02K3/48—Fastening of windings on the stator or rotor structure in 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The application provides a framework component, a winding method thereof and a motor. The framework component comprises a framework which is in a ring shape and arranged on the stator; the framework comprises a plurality of framework blocks which are spliced along the circumferential direction; the number of the framework blocks is n, the total number of the slots of the framework is Z, the number of the poles of the stator is 2P, and n is equal to | Z-2P |. This application adopts split type skeleton piece to assemble the constitution with the skeleton, and the skeleton piece is whole skeleton relatively, and the die sinking degree of difficulty is low, assembles simultaneously and makes the partial structural strength of skeleton obtain increasing, has improved the reliability to big external diameter multislot number skeleton.
Description
Technical Field
The application belongs to the technical field of industrial ceiling fans, and particularly relates to a framework component, a winding method of the framework component and a motor.
Background
The direct current brushless motor for the industrial ceiling fan is an outer rotor direct current motor which is commonly used in the industry at present, and has the problems of poor reliability and difficult maintenance; at present, tooth part winding is adopted for multi-slot direct current, and for a multi-slot full-circle iron core, winding equipment or manual winding is needed, so that the cost investment is high, and the consumed time is long. The direct current brushless motor for the industrial ceiling fan requires an iron core with large outer diameter and multiple grooves due to the unique characteristics of low speed and large torque, but if an integral framework is adopted in the scheme with large outer diameter and multiple grooves, the framework has a single-layer structure and multiple grooves, so that the mold opening difficulty is large, the mold opening investment is high, the strength is general, and the qualified rate is low.
Disclosure of Invention
Therefore, the application provides a framework component, a winding method thereof and a motor, and can solve the problems that in the prior art, the framework ring structure is thin and has a large number of grooves, so that the die opening difficulty is high, the die opening investment is high, the strength is general, and the qualified rate is low.
In order to solve the above problems, the present application provides a frame assembly, comprising:
a framework which is annular and is arranged on the stator; the framework comprises a plurality of framework blocks which are spliced along the circumferential direction;
the number of the framework blocks is n, the total number of the slots of the framework is Z, the number of the poles of the stator is 2P, and n is equal to | Z-2P |.
Optionally, both ends of the framework block in the circumferential direction respectively comprise a splicing assembly; in two adjacent skeleton pieces, one end of one skeleton piece is spliced with the other end of the other skeleton piece through the splicing assembly.
Optionally, the splicing assembly comprises a flat convex and a flat concave which are matched with each other, and the flat convex is formed by protruding the inner side of one end of the framework block along the circumferential direction; the flat recess is formed such that the outer side of the other end of the skeleton block protrudes in the circumferential direction.
Optionally, the framework block comprises an arc-shaped groove, and a circumferentially extending wire groove is formed in the inner side wall of the arc-shaped groove and can accommodate a bridge wire; the outer side wall is provided with a sub-groove along the radial direction, and the sub-groove can accommodate outgoing lines.
Optionally, the sub-grooves include stepped grooves disposed along a circumferential direction.
According to another aspect of the present application, there is provided a winding method of the bobbin assembly as described above, including: and a coil is embedded on the tooth part of each framework block, and two coils in the tooth slot between the adjacent tooth parts are arranged in an overlapped mode along the radial direction of the framework.
Optionally, the windings of the first coil and the last coil on each bobbin block are more than the windings of the rest of the coils.
Optionally, the windings of each phase are placed in a lap winding set according to the number of slots of each framework block, and the coils of the adjacent windings of the same phase on each framework block share the slots and the current flows in the same direction.
According to yet another aspect of the present application, there is provided an electric machine comprising a skeleton assembly as described above.
Optionally, the motor comprises an inner rotor permanent magnet brushless dc motor.
The application provides a skeleton subassembly includes: a framework which is annular and is arranged on the stator; the framework comprises a plurality of framework blocks which are spliced along the circumferential direction; the number of the framework blocks is n, the total number of the slots of the framework is Z, the number of the poles of the stator is 2P, and n is equal to | Z-2P |.
This application adopts split type skeleton piece to assemble the constitution with the skeleton, and the skeleton piece is whole skeleton relatively, and the die sinking degree of difficulty is low, assembles simultaneously and makes the partial structural strength of skeleton obtain increasing, has improved the reliability to big external diameter multislot number skeleton.
Drawings
Fig. 1 is a schematic structural diagram of a skeleton block according to an embodiment of the present application.
The reference numerals are represented as:
1. a skeleton block; 11. plano-convex; 12. plano-concave; 13. a wire passing groove; 14. and (4) an outlet groove.
Detailed Description
Referring collectively to fig. 1, in accordance with an embodiment of the present application, a bone frame assembly, comprises:
a framework which is annular and is arranged on the stator; the framework comprises a plurality of framework blocks 1 which are spliced along the circumferential direction;
the number of the framework blocks 1 is n, the total number of the grooves of the framework is Z, the number of the poles of the stator is 2P, and n is equal to | Z-2P |.
The skeleton that traditional stator core matches adopts integral type skeleton texture mostly, can lead to the skeleton die sinking degree of difficulty big, skeleton intensity to weaken and skeleton production process defective rate is high because of the iron core external diameter is big, the groove number is many. The split type framework blocks 1 are adopted for assembly to form the whole framework; the number of the framework blocks 1 is | total groove number Z-pole number 2P |, the number of the framework blocks 1 is set according to the corresponding relation between the total groove number and the pole number on the framework, and each framework block 1 is determined to be an individual with the same structure, so that the lower die is convenient to process in a unified mode, and the lower die is small in relative size, small in die sinking investment and high in product percent of pass. Meanwhile, the thickness of the framework at the splicing part is increased by splicing the framework blocks 1, the strength is improved, and the reliability of the product is good.
In some embodiments, the two ends of the framework block 1 in the circumferential direction respectively comprise a splicing assembly; in two adjacent framework pieces 1, one end of one framework piece 1 is spliced with the other end of the other framework piece 1 through the splicing assembly. Preferably, the splicing component comprises a flat convex 11 and a flat concave 12 which are matched with each other, wherein the flat convex 11 is provided that the inner side of one end of the framework block 1 protrudes along the circumferential direction; the flat recess 12 is formed so that the outer side of the other end of the frame block 1 protrudes in the circumferential direction.
The circumference both sides of the skeleton piece 1 of components of a whole that can function independently, one end is planoconvex 11, and one end is planoconcave 12, folds the pressure through unsmooth during the concatenation and assembles into the circle, and folds each other between the skeleton piece 1 and press still can avoid the skeleton to drop convenient operation.
In some embodiments, the framework block 1 comprises an arc-shaped groove, and a circumferentially extending wire groove is arranged on the inner side wall of the arc-shaped groove and can accommodate a bridge wire; the outer side wall is provided with a sub-groove along the radial direction, and the sub-groove can accommodate outgoing lines.
Because the whole framework is provided with the annular groove, each corresponding framework block 1 is provided with the arc-shaped groove structure, the line passing groove 13 is arranged on the inner side wall of the groove, the line passing grooves 13 are arranged along the circumferential direction, the three-phase neutral point can be fixedly arranged at the position after being welded and bound, the three-phase enameled wire is also arranged at the position after being welded and bound with the power supply line, the wire binding and adhesive tape fixing are not needed, meanwhile, the gap bridge wires in the same phase and different partitions can be welded and bound and then arranged at the position, and the different phase enameled wires are disordered to avoid the rechecking difficulty and the quality hidden danger; and the outer side wall of the framework is provided with sub-grooves in the radial direction, the sub-grooves can be arranged in a layered mode, if three heights exist, the phase heights are different, two height differences are arranged in one groove, and the three-phase electric staggered wire outgoing method is realized according to the matching of high, medium, low and high.
According to another aspect of the present application, there is provided a winding method of the bobbin assembly as described above, including: one coil is embedded on the tooth part of each framework block 1, and two coils in the tooth slot between the adjacent tooth parts are arranged in an overlapping mode along the radial direction of the framework.
For the iron cores with a large number of slots, wire winding equipment needs to be added for wire embedding, and in addition, the bridge wires and the lead wires are difficult to connect and place with power lines; this application coils on the skeleton piece 1 of components of a whole that can function independently, realizes the cancellation that the rule equipment drops into, realizes placing the coil by hand simultaneously, improves production efficiency.
In some embodiments, the first and last coils on each bobbin block 1 have more windings than the remaining coils. Preferably, the windings of each phase are arranged in a lap winding set according to the number of slots of each framework block 1, and the coils of the adjacent windings of the same phase on each framework block 1 share the same slot and have the same current flowing direction.
This application stator adopts similar concentrated lap-wound rule mode coiling, can adopt the machine to wind around equipment, and every three or four coil assembly are a set of, and first coil assembly and a plurality of coil assembly of tail are many around the round as the bridge wire, can twine nine groups or eighteen groups simultaneously, realize that the bridge wire links to each other mutually, need not to weld two coil assemblies, reduce the loss and improve production efficiency, and this kind of wire winding mode realizes that the spooling equipment is general simultaneously, improves production efficiency.
The wire embedding mode of each phase winding is carried out as follows: the coil inserting method has the advantages that the coil inserting method reduces the length of a gap bridge wire between coils of windings in the same phase in the same partition, and reduces material cost; the same-phase different partitions excessively correspond to the number of the slots through bridge lines, and the same-phase excessive interval slot number of the different partitions is Z/K.
According to yet another aspect of the present application, there is provided an electric machine comprising a skeleton assembly as described above. Specifically, the motor includes an inner rotor permanent magnet brushless dc motor.
The inner rotor permanent magnet direct current brushless motor for the industrial ceiling fan adopts the framework component, can realize low-speed and high-torque performance, replaces an outer rotor direct current motor in the current industry, and has the advantages of high reliability and convenient maintenance.
If the slot pole matching scheme of 72 slots +66 poles or 72 slots +78 poles or 54 slots +60 poles or 54 slots +48 poles is adopted, the outer diameter of a stator core is between phi 260 and phi 340mm, the rotor adopts an embedded structure, and the inner rotor permanent magnet direct current brushless motor with the rotating speed of 20-75rpm and the torque of more than or equal to 140Nm is realized.
It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (10)
1. A frame assembly, comprising:
a framework which is annular and is arranged on the stator; the framework comprises a plurality of framework blocks (1) which are spliced along the circumferential direction;
the number of the framework blocks (1) is n, the total number of the grooves of the framework is Z, the number of the poles of the stator is 2P, and n is equal to | Z-2P |.
2. The skeleton assembly according to claim 1, wherein the two circumferential ends of the skeleton blocks (1) respectively comprise a splicing assembly; in two adjacent framework pieces (1), one end of one framework piece (1) is spliced with the other end of the other framework piece (1) through the splicing assembly.
3. The carcass assembly according to claim 2, characterized in that the splicing assembly comprises a flat projection (11) and a flat recess (12) cooperating with each other, the flat projection (11) being provided so that the inner side of one end of the carcass block (1) protrudes in the circumferential direction; the flat recess (12) is formed so that the outer side of the other end of the frame block (1) protrudes in the circumferential direction.
4. A frame assembly according to any one of claims 1 to 3, wherein the frame blocks (1) comprise an arcuate slot, the inner side wall of the arcuate slot being provided with a circumferentially extending slot adapted to receive a bridge wire; the outer side wall is provided with a sub-groove along the radial direction, and the sub-groove can accommodate outgoing lines.
5. The backbone assembly of claim 4, wherein the sub-slots comprise circumferentially disposed stepped slots.
6. A method of winding a bobbin assembly according to any one of claims 1 to 5 comprising:
a coil is embedded on the tooth part of each framework block (1), and two coils in the tooth slot between the adjacent tooth parts are arranged in an overlapped mode along the radial direction of the framework.
7. Winding method according to claim 6, characterized in that the first and last winding on each frame piece (1) are wound more than the remaining windings.
8. Winding method according to claim 7, characterized in that the windings of each phase are placed in a lap winding set according to the number of slots in each frame block (1), and the coils of the adjacent windings of the same phase on each frame block (1) share slots and the current flow direction is the same.
9. An electrical machine comprising a skeletal assembly as defined in any of claims 1 to 5.
10. The motor of claim 9, wherein the motor comprises an inner rotor permanent magnet brushless dc motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111137717.7A CN113890241B (en) | 2021-09-27 | 2021-09-27 | Skeleton assembly, winding method thereof and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111137717.7A CN113890241B (en) | 2021-09-27 | 2021-09-27 | Skeleton assembly, winding method thereof and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113890241A true CN113890241A (en) | 2022-01-04 |
| CN113890241B CN113890241B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111137717.7A Active CN113890241B (en) | 2021-09-27 | 2021-09-27 | Skeleton assembly, winding method thereof and motor |
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| Country | Link |
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| CN (1) | CN113890241B (en) |
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| CN111404294A (en) * | 2020-05-09 | 2020-07-10 | 横店集团英洛华电气有限公司 | Stator assembly of external rotor motor |
| CN211701638U (en) * | 2020-05-09 | 2020-10-16 | 横店集团英洛华电气有限公司 | Stator assembly of external rotor motor |
| US20200381973A1 (en) * | 2019-06-03 | 2020-12-03 | Techway Industrial Co., Ltd. | Brushless Motor Stator Wound with a Single Winding Wire |
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2021
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| JP2000201462A (en) * | 1998-10-27 | 2000-07-18 | Mitsubishi Electric Corp | Thin and large diametric rotary electric machine and elevator using the same |
| CN2579073Y (en) * | 2002-10-24 | 2003-10-08 | 泰映科技股份有限公司 | Insulating base of brushless motor |
| JP2004274970A (en) * | 2003-03-12 | 2004-09-30 | Mitsubishi Electric Corp | Rotating electric machine |
| JP2009261247A (en) * | 2009-08-07 | 2009-11-05 | Mitsubishi Electric Corp | Rotary electric machine |
| CN101931274A (en) * | 2010-08-17 | 2010-12-29 | 浙江大学 | Modular motor stator structure and application thereof |
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| US20140035418A1 (en) * | 2012-08-01 | 2014-02-06 | Nidec Motor Corporation | Motor stator with reduced coil configuration |
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| CN107887991A (en) * | 2017-11-14 | 2018-04-06 | 珠海凯邦电机制造有限公司 | Stator unit structure, stator structure and motor |
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| US20200381973A1 (en) * | 2019-06-03 | 2020-12-03 | Techway Industrial Co., Ltd. | Brushless Motor Stator Wound with a Single Winding Wire |
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| CN110829642A (en) * | 2019-11-04 | 2020-02-21 | 珠海凯邦电机制造有限公司 | Stator split block, stator and motor thereof |
| CN111404294A (en) * | 2020-05-09 | 2020-07-10 | 横店集团英洛华电气有限公司 | Stator assembly of external rotor motor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113890241B (en) | 2022-12-13 |
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