CN111987820A - Multi-winding lamination claw pole motor - Google Patents
Multi-winding lamination claw pole motor Download PDFInfo
- Publication number
- CN111987820A CN111987820A CN201910437093.7A CN201910437093A CN111987820A CN 111987820 A CN111987820 A CN 111987820A CN 201910437093 A CN201910437093 A CN 201910437093A CN 111987820 A CN111987820 A CN 111987820A
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- Prior art keywords
- lamination
- claw
- motor
- winding
- pole
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- 210000000078 claw Anatomy 0.000 title claims abstract description 65
- 238000004804 winding Methods 0.000 title claims abstract description 62
- 238000003475 lamination Methods 0.000 title claims abstract description 59
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000004907 flux Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H02K1/14—Stator cores with salient poles
- H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
-
- 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
- H02K3/18—Windings for salient poles
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a multi-winding lamination claw pole motor which is mainly used for a permanent magnet synchronous motor.A coil (1) is wound on a framework (2), a plurality of groups of lamination claw poles (3) are respectively arranged in the framework (2) from two ends, two groups of lamination end plates (4) are respectively arranged at two ends of the framework (2) to form a single-winding combination (5), the lamination claw poles (3) and the lamination end plates (4) are formed by overlapping a plurality of silicon steel sheets, a motor stator can be formed by coaxially arranging 2 or 3 single-winding combinations (5) side by side, and the electromagnetic angles of 90 degrees or 120 degrees are staggered in the circumferential direction; compared with most of the existing motors, the motor winding processing technology is simplified, the reliability is improved, the copper consumption is reduced, compared with the existing asynchronous motor, the efficiency and the power factor are greatly improved, compared with the existing permanent magnet synchronous motor, the rotor structure is simplified, the cost is reduced, the self-starting capability is good, and the motor with larger power can be manufactured.
Description
Technical Field
The invention relates to a multi-winding lamination claw-pole motor which is mainly used for a permanent magnet synchronous motor and belongs to the technical field of motor manufacturing.
Background
Most of the existing motors are asynchronous motors, which have the characteristics of simple manufacture and low price, but have the defects of lower efficiency and power factor, and the existing common permanent magnet synchronous motors are superior to the asynchronous motors in terms of efficiency and power factor, but do not have self-starting capability, and generally need to add an asynchronous starting device on a rotor to form an asynchronous starting and synchronous operation working condition, so that the process difficulty and the cost of motor manufacture are increased. In addition, both the asynchronous motor and the common permanent magnet synchronous motor are time-consuming and labor-consuming in the aspect of winding manufacturing process, low in wire utilization rate, low in dielectric strength and poor in reliability, and motor manufacturing enterprises feel deeply. The claw-pole type motor can solve the difficulty of motor winding processing, but the claw poles of the existing permanent magnet claw-pole synchronous motor are integrally manufactured and cannot pass larger alternating magnetic flux, so that the power is not large, and the claw-pole type motor is generally difficult to exceed 10 watts.
Disclosure of Invention
The invention provides a multi-winding lamination claw-pole motor which is mainly used for a permanent magnet synchronous motor and aims to overcome the defects of the conventional asynchronous motor and the conventional permanent magnet synchronous motor.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the coil (1) is wound on the framework (2), a plurality of groups of lamination claw poles (3) are respectively arranged in the framework (2) from two ends, two groups of lamination end plates (4) are respectively arranged at two ends of the framework (2) to form a single-winding combination (5), the lamination claw poles (3) and the lamination end plates (4) are formed by overlapping a plurality of silicon steel sheets, and 2 or more than 2 single-winding combinations (5) are coaxially arranged side by side to form a motor stator; the motor stator can be formed by 2 single winding combinations (5) in a coaxial and side-by-side mode, and the 2 single winding combinations (5) are staggered by 90-degree electromagnetic angles in the circumferential direction; the motor stator can also be formed by 3 single winding combinations (5) in a coaxial and parallel mode, and the 3 single winding combinations (5) are staggered by an electromagnetic angle of 120 degrees in the circumferential direction; in the application of an inner rotor motor, a gap (6) is reserved between the inner side surface of the lamination claw pole (3) and the outer end surface of the lamination end plate (4); in the application of an outer rotor motor, the inner side surfaces of the left and right laminated claw poles (3) are mutually attached in the middle of the single winding combination (5) through the side surface (7); grooves (8) are formed in corresponding positions of the outer circles of the framework (2) and the laminated end plate (4); the lamination claw poles (3) are arranged in an arc shape or a straight line, and can also be arranged and combined in an arc shape or a straight line, and the lengths of the laminations can be different.
The invention has the beneficial effects that:
1. as the claw pole motor is adopted, compared with most of the existing motors, the motor winding processing technology is simplified, the reliability is improved, and the copper consumption is reduced.
2. Compared with the existing asynchronous motor, the efficiency and the power factor part are greatly improved.
3. Compared with the existing permanent magnet synchronous motor, the rotor structure is simplified, the cost is reduced, the self-starting capability is good, and a motor with larger power can be manufactured.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a cross-sectional view of a single winding of an inner rotor motor of the present invention;
FIG. 2 is a three-dimensional view of a single winding of the inner rotor motor of the present invention;
FIG. 3 is a cross-sectional view of a single winding of the external rotor motor of the present invention;
FIG. 4 is a three-dimensional view of a single winding of the external rotor motor of the present invention;
FIG. 5 is a three-dimensional view of a stator of a multi-winding motor formed by 2 single windings coaxially arranged side by side;
FIG. 6 is a three-dimensional view of 2 single windings coaxially arranged side by side circumferentially offset by 90 degrees in electromagnetic angle;
FIG. 7 is a three-dimensional view of 3 single windings coaxially arranged side by side circumferentially offset by 120 electromagnetic angles;
fig. 8-14 are three-dimensional views of various configurations of laminated claws.
In the figure, (1) is a coil, (2) is a framework, (3) is a lamination claw pole, (4) is a lamination end plate, (5) is a single winding combination, (6) is a gap between the inner side surface of the lamination claw pole and the outer end surface of the lamination end plate, (7) is a joint surface of the inner side surfaces of the left lamination claw pole and the right lamination claw pole in the middle of the single winding combination, and (8) is a groove on the framework and the lamination end plate.
Detailed Description
Fig. 1 and 2 are a sectional view and a three-dimensional view of a single winding combination of an inner rotor motor, a coil (1) is wound on a framework (2), the framework (2) is of an open structure, so that winding is very convenient and efficient, the framework (2) is made of engineering plastics, on one hand, the insulation grade of the coil (1) can be improved, on the other hand, installation support can be provided for laminated claw poles (3), a plurality of groups of laminated claw poles (3) are respectively installed into the framework (2) from two ends, and two groups of laminated end plates (4) are respectively tightly attached to the laminated claw poles (3) and fixed at the two ends of the framework (2) to form a single winding combination (5). During operation permanent magnetism inner rotor is settled in motor stator inner chamber, and the flux linkage trend is: permanent magnet inner rotor N pole → left claw pole inner claw → claw pole end face and left lamination end plate → left and right claw pole outer claw → claw pole end face and right lamination end plate → right claw pole inner claw → permanent magnet inner rotor S pole. The magnetic chain completely surrounds the coil (1), and all wires participate in electromagnetic exchange work, so that compared with the existing motor, the magnetic chain can save the wires, reduce copper consumption and improve efficiency. The flux linkage passes through the lamination claw pole (3) and the lamination end plate (4) in a direction parallel to the superposition direction, so that larger alternating magnetic flux is allowed to pass through, and a larger-power motor can be manufactured. A gap (6) should be reserved between the inner side face of the lamination claw pole (3) and the outer end face of the lamination end plate (4), magnetic short circuit can be caused if the gap is not reserved for a multi-winding motor stator, the performance of the motor is affected, and the gap should be not less than 3-4 times of the length of a motor air gap.
Fig. 3 and 4 are a sectional view and a three-dimensional view of a single winding assembly of an external rotor motor, a coil (1) is wound on a framework (2), the framework (2) is of an open structure, so that winding is very convenient and efficient, the framework (2) is made of engineering plastics, on one hand, the insulation grade of the coil (1) can be improved, on the other hand, installation support can be provided for laminated claw poles (3), a plurality of groups of laminated claw poles (3) are respectively installed into the framework (2) from two ends, and two groups of laminated end plates (4) are respectively tightly attached to the laminated claw poles (3) and fixed at two ends of the framework (2) to form a single winding assembly (5). The during operation permanent magnetism external rotor is settled in motor stator outside, and the magnetic linkage trend is: permanent magnet outer rotor N pole → left claw pole outer claw → claw pole end face and left lamination end plate → left claw pole inner claw → right claw pole inner claw → claw pole end face and right lamination end plate → right claw pole outer claw → permanent magnet outer rotor S pole. The magnetic chain completely surrounds the coil (1), and all wires participate in electromagnetic exchange work, so that compared with the existing motor, the magnetic chain can save the wires, reduce copper consumption and improve efficiency. The flux linkage passes through the lamination claw pole (3) and the lamination end plate (4) in a direction parallel to the superposition direction, so that larger alternating magnetic flux is allowed to pass through, and a larger-power motor can be manufactured. As the magnetic flux linkage passes through the inner claw of the left claw pole and the inner claw end surface (7) of the right claw pole, the two end surfaces are ensured to be tightly attached by the process.
Fig. 5 is a three-dimensional view of a multi-winding motor stator formed by 2 single-winding combinations coaxially and side by side, and due to the magnetic circuit characteristics of a claw-pole motor, the claw-pole design is not easy to overlong, when the motor needs to obtain a longer stator, the motor can be designed into 2 shorter single-winding combinations (5) coaxially and side by side to form the multi-winding motor stator, and in order to facilitate the inter-winding connection, grooves (8) are formed in corresponding positions of the outer circles of a framework (2) and a lamination end plate (4).
Fig. 6 is a three-dimensional view of 2 single-winding combinations, which are coaxially arranged side by side and circumferentially staggered by 90 ° in an electromagnetic angle, and is used in a single-phase power supply situation, it is known that when a single-winding claw pole permanent magnet synchronous motor is supplied with power in a single phase, the starting rotation direction is uncertain, that is, the single-winding claw pole permanent magnet synchronous motor may rotate in the clockwise direction or the counterclockwise direction. 2 single winding combinations (5) are coaxially arranged side by side and staggered by 90-degree electromagnetic angle in the circumferential direction, and when a proper capacitor is connected in series in one single winding combination (5), a two-phase rotating magnetic field can be formed, so that the rotating direction of the motor can be fixed, and the rotating direction of the motor can be changed by changing the connection of the capacitors.
Fig. 7 is a three-dimensional view of 3 single-winding coaxial parallel peripheral directions staggered by an electromagnetic angle of 120 degrees, and is used for three-phase power supply occasions, 3 single-winding combinations (5) can be connected in a star shape or a triangle shape, a rotating magnetic field can be formed, the rotating direction of the motor can be fixed, and the rotating direction of the motor can be changed by changing the connection of three-phase power supply.
Fig. 8 is a three-dimensional view of the lamination claw poles (3) assembled in an arc arrangement, typically used in applications where the number of pole pairs of the inner rotor motor is small.
Fig. 9 is a three-dimensional view of the lamination claw poles (3) assembled in an arc-shaped, straight arrangement, typically used in applications where the number of pole pairs of the inner rotor motor is small.
Fig. 10 is a three-dimensional view of the lamination claw poles (3) combined in a linear arrangement, which is commonly used in the case of the inner rotor motor with a large number of pole pairs.
Fig. 11 is a three-dimensional view of the lamination claw poles (3) arranged in a straight line and assembled in different lengths of the laminations, which is commonly used in the case of the inner rotor motor with a large number of pole pairs.
Fig. 12 is a three-dimensional view of the lamination claw poles (3) assembled in an arc arrangement, which is generally used for the field with fewer pole pairs of the external rotor motor.
Fig. 13 is a three-dimensional view of the lamination claw poles (3) arranged in an arc and assembled with different lamination lengths, which is commonly used in the case of an external rotor motor.
Fig. 14 is another three-dimensional view of the lamination claw poles (3) arranged in an arc and assembled with different lamination lengths, which is commonly used in the case of an external rotor motor.
Claims (7)
1. Many windings lamination claw utmost point motor, single winding combination (5) comprise characterized by coil (1), skeleton (2), lamination claw utmost point (3), lamination end plate (4): the coil (1) is wound on the framework (2), a plurality of groups of lamination claw poles (3) are respectively arranged in the framework (2) from two ends, two groups of lamination end plates (4) are respectively arranged at two ends of the framework (2) to form a single-winding combination (5), the lamination claw poles (3) and the lamination end plates (4) are formed by overlapping a plurality of silicon steel sheets, and 2 or more than 2 single-winding combinations (5) are coaxial and are arranged side by side to form a motor stator.
2. The multi-winding laminated claw-pole motor of claim 1, wherein: the motor stator is formed by coaxially arranging 2 single winding combinations (5), and the 2 single winding combinations (5) are staggered by 90-degree electromagnetic angles in the circumferential direction.
3. The multi-winding laminated claw-pole motor of claim 1, wherein: the motor stator is formed by 3 single winding combinations (5) which are coaxial and arranged side by side, and the 3 single winding combinations (5) are staggered by 120-degree electromagnetic angles in the circumferential direction.
4. The multi-winding laminated claw-pole motor of claim 1, wherein: in the application of the inner rotor motor, the inner side surface of the lamination claw pole (3) and the outer end surface of the lamination end plate (4) should keep a gap (6).
5. The multi-winding laminated claw-pole motor of claim 1, wherein: in the application of an outer rotor motor, the inner side surfaces of the left lamination claw pole and the right lamination claw pole (3) are mutually attached in the middle of the single winding combination (5) through the side surface (7).
6. The multi-winding laminated claw-pole motor of claim 1, wherein: grooves (8) are formed in corresponding positions of the outer circles of the framework (2) and the lamination end plate (4).
7. The multi-winding laminated claw-pole motor of claim 1, wherein: the lamination claw poles (3) are arranged in an arc shape or a straight line, and can also be arranged in an arc shape or a straight line combination, and the lengths of the laminations can be different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910437093.7A CN111987820A (en) | 2019-05-22 | 2019-05-22 | Multi-winding lamination claw pole motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910437093.7A CN111987820A (en) | 2019-05-22 | 2019-05-22 | Multi-winding lamination claw pole motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111987820A true CN111987820A (en) | 2020-11-24 |
Family
ID=73436602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910437093.7A Pending CN111987820A (en) | 2019-05-22 | 2019-05-22 | Multi-winding lamination claw pole motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111987820A (en) |
-
2019
- 2019-05-22 CN CN201910437093.7A patent/CN111987820A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201124 |