CN106253615B - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN106253615B CN106253615B CN201610739995.2A CN201610739995A CN106253615B CN 106253615 B CN106253615 B CN 106253615B CN 201610739995 A CN201610739995 A CN 201610739995A CN 106253615 B CN106253615 B CN 106253615B
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- CN
- China
- Prior art keywords
- rotor
- core
- iron core
- motor
- rotor iron
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of motors, the motor includes stator core and the first rotor iron core being installed in the stator core, at least one end in the axial ends of the first rotor iron core is provided with second rotor core coaxial with the first rotor iron core, and the sum of the first rotor iron core and the axial length of second rotor core are greater than the axial length of the stator core.The present invention improves the poly- magnetic property of rotor core, and improves the working efficiency of motor.
Description
Technical field
The present invention relates to technical field of motors more particularly to a kind of motors.
Background technique
Its rotor core of existing self-starting permanent magnet synchronous motor is consistent with the length of stator core, to guarantee poly- magnetic effect
Fruit, it is necessary to it is realized using the stronger rubidium iron boron magnetic material of magnetic property, but its material cost is higher, and if lower using other magnetism
Magnetic material, then can reduce the poly- magnetic property of rotor core, and reduce the working efficiency of motor.
Summary of the invention
The main purpose of the present invention is to provide a kind of motors, it is intended to improve the poly- magnetic property of rotor core, improve motor
Working efficiency.
To achieve the above object, the present invention proposes a kind of motor, which includes stator core and be installed in the stator
The first rotor iron core in iron core, which is characterized in that at least one end in the axial ends of the first rotor iron core is provided with
The axial direction of the second coaxial rotor core with the first rotor iron core, the first rotor iron core and second rotor core is long
The sum of degree is greater than the axial length of the stator core.
Preferably, the axial length of the first rotor iron core is equal to the axial length of the stator core.
Preferably, the axial ends of the first rotor iron core is respectively arranged with second rotor core.
Preferably, the material of the first rotor iron core and the/the second rotor core is ferrite.
Preferably, multiple the first magnetic slots radially arranged are provided on the first rotor iron core；Described second
The position that rotor core corresponds to first magnetic slot is provided with the second magnetic slot, and magnet steel is inserted in first magnetic slot and
In two magnetic slots.
Preferably, the position that second magnetic slot is corresponded in the outer annular edge of second rotor core be equipped be connected to this
The opening of two magnetic slots.
Preferably, the outer diameter of second rotor core is less than the outer diameter of the first rotor iron core, the first rotor
Iron core has the outer edge not blocked by second rotor core, is arranged on the outer edge around second rotor core
There are along the axially extending of the first rotor iron core and run through multiple cage grooves of its axial ends；Setting in each cage grooves
There is squirrel-cage bar, and constitutes mouse cage with the end ring integrally connected being socketed on second rotor core.
Preferably, the first rotor iron core includes multiple the first rotor punchings, and each the first rotor punching, which has, to be turned
Axis hole, multiple the first rotor punchings are along the axially stacked of its shaft hole.
Preferably, second rotor core includes multiple second rotor punchings, and each second rotor punching, which has, to be turned
Axis hole, multiple second rotor punchings are along the axially stacked of its shaft hole.
The present invention is greater than stator core by the sum of axial length of setting the first rotor iron core and the second rotor core
Axial length, so that the poly- magnetic property of entire rotor core improves, and in work, the first rotor iron core and the second rotor
Magnetic steering stator core will be such that the air gap flux density of entire motor increases by iron core beyond the part of stator core, improve motor
Working efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the knot after stator core in motor of the present invention, the first rotor iron core, the second rotor core and magnet steel assembling
Structure schematic diagram；
Fig. 2 is to increase the structural schematic diagram after end ring in Fig. 1；
Fig. 3 is that the structural schematic diagram after stator core is removed in Fig. 2；
Fig. 4 is that the structural schematic diagram after end ring is removed in Fig. 3；
Fig. 5 is that the structural schematic diagram after magnet steel is removed in Fig. 4；
Fig. 6 is the assembling exploded view of Fig. 5；
Fig. 7 is the structural schematic diagram of the first rotor punching of the present invention；
Fig. 8 is the structural schematic diagram of the first rotor punching of the present invention.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art under that premise of not paying creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The present invention proposes a kind of motor.
Referring especially to Fig. 1 and Fig. 2, and Fig. 3 to Fig. 5 is combined, in an embodiment of the present invention, which includes stator core
10 and the first rotor iron core 20 that is installed in the stator core 10.
In the present embodiment, at least one end in the axial ends of the first rotor iron core 20 is provided with and the first rotor
The axial length of the second coaxial rotor core 30 of iron core 20, the first rotor iron core 20 and second rotor core 30 it
With the axial length for being greater than the stator core 10.
It should be noted that due to the axial magnet accumulating cap of rotor core, when the first rotor iron core 20 and the second rotor iron
When the sum of axial length of core 30 is greater than the axial length of the stator core 10, so that the magnetic property of entire rotor core mentions
Height, and in work, the first rotor iron core 20 and the second rotor core 30 will be by magnetic beyond the part of stator core 10
It is oriented to stator core 10, increases the air gap flux density of entire motor, improves the working efficiency of motor.
In the present embodiment, the axial length of the first rotor iron core 20 can be less than, be equal to or more than the stator
The axial length of iron core 10, preferably the axial length of the first rotor iron core 20 is equal to the stator core 10 in the present embodiment
Axial length, the first rotor iron core 20 and the shape of stator core 10 can be made to be adapted, while can guarantee rotor core
Poly- magnetic effect.
In the present embodiment, the wherein one or both ends in the axial ends of the first rotor iron core 20 are provided with second
Rotor core 30.It is understood that the first rotor iron core 20 is provided with one end of the second rotor core 30, poly- magnetic effect is just
More preferably, when the axial ends of the first rotor iron core 20 is respectively arranged with the second rotor core 30, then it can make the first rotor iron
The axial ends of core 20 can preferable poly- magnetic effect.Thus, it is possible to further such that the first rotor iron core 20 and the second rotor
Magnetic relatively low magnetic material can be used to replace rubidium iron boron magnetic material to realize in iron core 30, such as ferrite.
In the present embodiment, which further includes magnet steel 40, be provided on the first rotor iron core 20 it is multiple radially
First magnetic slot 101 of arrangement；The position of corresponding first magnetic slot 101 of second rotor core 30 is provided with the second magnetic
Steel tank 102, magnet steel 40 are inserted in first magnetic slot 101 and the second magnetic slot 102.
In the present embodiment, referring to Fig. 5, second magnetic slot 102 is corresponded in the outer annular edge of second rotor core 30
Position be equipped be connected to second magnetic slot 102 opening 103.The opening 103 can reduce the leakage field of the second rotor core 30
Effect, prevents magnetic saturation.
In the present embodiment, the outer diameter of second rotor core 30 is less than the outer diameter of the first rotor iron core 20, described
The first rotor iron core 20 has the outer edge not blocked by second rotor core 30, surround described second on the outer edge
Rotor core 30 is provided with along the axially extending of the first rotor iron core 20 and runs through multiple cage grooves of its axial ends
104；Be provided with squirrel-cage bar (not shown) in each cage grooves 104, and with the end that is socketed on second rotor core 30
50 integrally connected of ring constitutes mouse cage.It is understood that the outer diameter of the second rotor core 30 is less than the first rotor iron core 20
Outer diameter, and not set cage grooves 104 can reduce the resistance of rotor while improving rotor magnet accumulating cap, raising lead into
Synchronizing capacity.
In the present embodiment, referring to Fig. 7, the first rotor iron core 20 can be used multiple the first rotor punchings 21 and laminate shape
Have shaft hole (figure does not indicate) at, wherein each the first rotor punching 21, the multiple the first rotor punchings 21 are along its turn
Axis hole it is axially stacked.Certainly it can not also be limited herein using other molding modes, it is this to laminate the mode side to be formed
Become type, simple process, lower production costs.
In the present embodiment, referring to Fig. 8, second rotor core 30 can be used multiple second rotor punchings 31 and laminate shape
Have shaft hole (figure does not indicate) at, wherein each second rotor punching 31, multiple second rotor punchings 31 are along its turn
Axis hole it is axially stacked.Certainly it can not also be limited herein using other molding modes, it is this to laminate the mode side to be formed
Become type, simple process, lower production costs.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (8)
1. a kind of motor, including stator core and the first rotor iron core being installed in the stator core, which is characterized in that institute
It states at least one end in the axial ends of the first rotor iron core and is provided with second rotor core coaxial with the first rotor iron core,
The sum of axial length of the first rotor iron core and second rotor core is greater than the axial length of the stator core；
The outer diameter of second rotor core be less than the first rotor iron core outer diameter, the first rotor iron core have not by
The outer edge that second rotor core blocks is provided with along described first on the outer edge around second rotor core
Multiple cage grooves that are axially extending and running through its axial ends of rotor core；It is provided with squirrel-cage bar in each cage grooves, and
Mouse cage is constituted with the end ring integrally connected being socketed on second rotor core.
2. motor as described in claim 1, which is characterized in that the axial length of the first rotor iron core is equal to the stator
The axial length of iron core.
3. motor as described in claim 1, which is characterized in that the axial ends of the first rotor iron core is respectively set
State the second rotor core.
4. motor as described in claim 1, which is characterized in that the material of the first rotor iron core and the/the second rotor core
For ferrite.
5. the motor as described in Claims 1-4 any one, which is characterized in that be provided on the first rotor iron core more
A the first magnetic slot radially arranged；The position that second rotor core corresponds to first magnetic slot is provided with second
Magnetic slot, magnet steel are inserted in first magnetic slot and the second magnetic slot.
6. motor as claimed in claim 5, which is characterized in that correspond to described second in the outer annular edge of second rotor core
The position of magnetic slot is equipped with the opening for being connected to second magnetic slot.
7. the motor as described in Claims 1-4 any one, which is characterized in that the first rotor iron core includes multiple
One rotor punching, each the first rotor punching have shaft hole, axial direction of multiple the first rotor punchings along its shaft hole
It is stacked.
8. the motor as described in Claims 1-4 any one, which is characterized in that second rotor core includes multiple
Two rotor punchings, each second rotor punching have shaft hole, axial direction of multiple second rotor punchings along its shaft hole
It is stacked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610739995.2A CN106253615B (en) | 2016-08-26 | 2016-08-26 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610739995.2A CN106253615B (en) | 2016-08-26 | 2016-08-26 | Motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106253615A CN106253615A (en) | 2016-12-21 |
| CN106253615B true CN106253615B (en) | 2019-01-08 |
Family
ID=57597152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610739995.2A Active CN106253615B (en) | 2016-08-26 | 2016-08-26 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106253615B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881433A (en) * | 2017-03-27 | 2017-06-23 | 青岛北琪实业有限公司 | A kind of high working efficiency and it is capable of the tinplate lid feeding device of precise positioning |
| CN115065182A (en) * | 2022-06-20 | 2022-09-16 | 国网重庆市电力公司电力科学研究院 | Novel built-in permanent magnet motor rotor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3609750A1 (en) * | 1986-03-22 | 1987-09-24 | Bosch Gmbh Robert | Combined synchronous/asynchronous machine |
| US6563246B1 (en) * | 1999-10-14 | 2003-05-13 | Denso Corporation | Rotary electric machine for electric vehicle |
| JP2006314196A (en) * | 2006-07-18 | 2006-11-16 | Matsushita Electric Ind Co Ltd | Electric motor with embedded permanent magnet |
| CN101192784A (en) * | 2006-11-22 | 2008-06-04 | 东元电机股份有限公司 | Rotor of motor |
| CN101958617A (en) * | 2010-09-30 | 2011-01-26 | 广州数控设备有限公司 | Double-characteristic three-phase motor with matching of double rotors and single stator |
| CN202309249U (en) * | 2011-10-19 | 2012-07-04 | 中山大洋电机制造有限公司 | Electric motor structure |
| CN103430430A (en) * | 2011-03-31 | 2013-12-04 | 大金工业株式会社 | Rotor and rotating electrical mechanism using same |
-
2016
- 2016-08-26 CN CN201610739995.2A patent/CN106253615B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3609750A1 (en) * | 1986-03-22 | 1987-09-24 | Bosch Gmbh Robert | Combined synchronous/asynchronous machine |
| US6563246B1 (en) * | 1999-10-14 | 2003-05-13 | Denso Corporation | Rotary electric machine for electric vehicle |
| JP2006314196A (en) * | 2006-07-18 | 2006-11-16 | Matsushita Electric Ind Co Ltd | Electric motor with embedded permanent magnet |
| CN101192784A (en) * | 2006-11-22 | 2008-06-04 | 东元电机股份有限公司 | Rotor of motor |
| CN101958617A (en) * | 2010-09-30 | 2011-01-26 | 广州数控设备有限公司 | Double-characteristic three-phase motor with matching of double rotors and single stator |
| CN103430430A (en) * | 2011-03-31 | 2013-12-04 | 大金工业株式会社 | Rotor and rotating electrical mechanism using same |
| CN202309249U (en) * | 2011-10-19 | 2012-07-04 | 中山大洋电机制造有限公司 | Electric motor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106253615A (en) | 2016-12-21 |
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