CN110247532A - A kind of built-in permanent magnetic motor - Google Patents
A kind of built-in permanent magnetic motor Download PDFInfo
- Publication number
- CN110247532A CN110247532A CN201910556410.7A CN201910556410A CN110247532A CN 110247532 A CN110247532 A CN 110247532A CN 201910556410 A CN201910556410 A CN 201910556410A CN 110247532 A CN110247532 A CN 110247532A
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- CN
- China
- Prior art keywords
- rotor
- built
- permanent magnet
- permanent magnetic
- permanent
- Prior art date
- 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
- 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
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The present invention relates to a kind of built-in permanent magnetic motors, it belongs to technical field of motors.The present invention includes stator, rotor, arbor and winding wire, stator is matched with rotor, multiple winding coils are set on stator, rotor is set on motor shaft, setting rotor core and permanent magnet in rotor, the permanent magnet of multiple different forms being spacedly distributed is set on rotor core, and the center axis of permanent magnet is provided with magnetic open circuit structure in a circle of disconnection.Structure of the invention designs advantages of simple, and reliable and stable, motor oscillating and noise are small, and magnet performance utilization rate is high, and air gap losses are small, satisfy the use demand.
Description
Technical field
The present invention relates to a kind of motors, and more particularly, to the built-in permanent magnetic motor of a kind of high efficiency, high stability, it belongs to
In technical field of motors.
Background technique
Embedded actuator is integrally mainly made of stator and rotor, the permanent magnet used in the rotor of existing embedded actuator
Mostly regular cuboid magnet cannot preferably cooperate with rotor core and magnetic circuit, air gap losses, rotor dynamic balancing performance
Difference, motor whole efficiency is low, and the setting loss of existing magnetic circuit is big, and utilization rate is low.
Publication date is on November 16th, 2016, in the Chinese patent of Publication No. CN106130220A, discloses a kind of name
A kind of referred to as patent of invention of " IPM rotor of PMSM motor ".The patent includes rotor core, rotor shaft and permanent magnet, is turned
Sub- iron core is set on rotor shaft and is fixedly connected with rotor shaft, and permanent magnet is equipped with inside rotor core, rotor core
It is evenly distributed with several arc-shaped lug bosses on surface, straight line portion is set between the adjacent lug boss, lug boss is inclined
Core structure, permanent magnet are correspondingly arranged with lug boss, to reduce cogging torque.Permanent magnet in the patent document belongs to appearance
It is embedded to insert "-" type arrangement, it is big relative to the application noise vibration, and application places are also different.
Publication date is on October 09th, 2018, in the Chinese patent of Publication No. CN108631464A, discloses a kind of name
The referred to as patent of invention of " permanent magnet embedded rotor, permanent magnet type motor and compressor ".The patent includes rotor core, is formed with
Multiple slots, multiple slots have symmetrical vertical sectional shape.The patent has oblique pole, and manufacturing cost is high, application field has
Limitation etc., therefore still there is drawbacks described above in it.
Therefore it provides a kind of structure design advantages of simple, manufacturing cost are low, vibration and noise are small, magnet performance utilization rate
Height, the small built-in permanent magnetic motor of air gap losses, it appears particularly necessary.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of simple conjunction of structure design
Reason, reliable and stable, motor oscillating and noise are small, and magnet performance utilization rate is high, the small built-in permanent magnetic motor of air gap losses.
The present invention solve the above problems used by technical solution be: the built-in permanent magnetic motor, including stator, rotor,
Motor shaft and coiling combination, the stator are matched with rotor, and multiple winding coils are arranged on stator, are arranged on rotor for being driven
Motor shaft, it is characterised in that: setting rotor core and be fitted close with it and air gap losses can be reduced forever in the rotor
The fixed slot of multiple permanent magnets for different form being spacedly distributed is arranged on the rotor core for magnet；Make abnormity forever
Magnet is preferably fitted close with rotor core, reduces air gap losses；Guarantee the dynamic balancing of rotor, with small vibration, motor is whole
Body is more efficient, and the special-shaped permanent magnet of this statement is not belonging to conventional cuboid magnet.
Preferably, motor stator core front end of the present invention uses multiple circular arc stepped grooves or straight line stepped groove.
Preferably, permanent magnet of the present invention is using one of sintering (rare earth) ferrite or modeling magnetic ferrites.
Preferably, permanent magnet of the present invention uses trapezoidal, triangle, semicircle and irregular shape.
Preferably, multiple slots to match with special-shaped permanent magnet are arranged on rotor of the present invention；The shape of the slot
Shape and size are consistent with the special-shaped shapes and sizes of permanent magnet.
Preferably, the arc groove of a plurality of gap distribution is arranged on rotor core of the present invention；In order to guide the magnetic line of force,
Cutting stator magnetic field matches with stator electromagnet field, reduces the vibration of motor, reduces noise, improves whole efficiency.
Preferably, elastic material is arranged in interior magnetic open circuit structure of the present invention, which has insulation performance；
With vibration-damping function, anti-electrocorrosion reduces noise, anticreep, the performances such as anti-tampering.
Preferably, elastic material of the present invention is using elastic materials such as rubber, PBT or nylon.
Preferably, the center axis of permanent magnet of the present invention is provided with magnetic open circuit structure in a circle of disconnection.
Preferably, the core portion of rotor core internal magnetic circuit open circuit structure of the present invention is provided with multiple double wedge knots
Structure guarantees the torsion transmitting of motor.
Compared with prior art, the present invention having the following advantages that and effect: 1, overall construction design advantages of simple, stabilization can
It leans on, motor oscillating and noise are small, and magnet performance utilization rate is high, and air gap losses are small, and motor overall volume reduces compared with same type
The features such as；2, the Design of Permanent Magnet of the abnormity can guarantee to be fitted close with rotor core, reduce air gap losses；Guarantee that motor turns
The dynamic balance performance of son is good, and with small vibration, motor whole efficiency is higher；3, regular slot design reduces noise in magnetic circuit, reduces
Small, motor whole efficiency height is lost in vibration；4, interior magnetic open circuit structure；It prevents flux density to reversed leakage field, reduces loss, improve magnetic
Close utilization rate.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of the rotor portion of the embodiment of the present invention.
In figure: stator 1, rotor 2, motor shaft 3, coiling combination 4, permanent magnet 5, rotor core 6, slot 7, the regular slot of magnetic circuit
8, nonconcentric(al) off-centre operation 9, interior magnetic open circuit structure 10.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
Referring to Fig. 1 to Fig. 2, the present embodiment built-in permanent magnetic motor includes stator 1, rotor 2, motor shaft 3 and winding coil
4, stator 1 is matched with rotor 2, and multiple winding coils 4 are arranged on stator 1, and winding coil 4 uses electric conductor, and rotor 2 is set to electricity
On arbor 3, it is characterised in that: rotor core 6 is set in rotor 2 and the permanent magnet of air gap losses is fitted close and can reduced with it
5, the permanent magnet 5 of multiple different forms being spacedly distributed is set on the rotor core 6.
The center axis of the permanent magnet 5 of the present embodiment is provided with magnetic open circuit structure 10 in a circle of disconnection；Permanent magnet 5 is using burning
Tie one of (rare earth) ferrite or modeling magnetic ferrites.
The permanent magnet 5 of the present embodiment is using trapezoidal, triangle, semicircle and irregular shape.
Multiple slots 7 to match with permanent magnet are set on the rotor 2 of the present embodiment；Multiple magnetic are arranged in the inside of rotor 2
The regular slot 8 in road.
Multiple nonconcentric(al) off-centre operations 9 are set on the rotor core 6 of the present embodiment；A plurality of gap is set on rotor core 6
The arc groove of distribution.
Elastic material is set in the interior magnetic open circuit structure 10 of the present embodiment, and elastic material has insulation performance, the elasticity material
Material is using elastic materials such as rubber, PBT or nylon.
When work, coiling combination is powered, the generation electromagnetic field of stator 1, the permanent magnet magnetic field interactions with rotor 2, then
Rotor 2 rotates, and drives and rotates with the matched arbor 3 of rotor 2, required load is driven to work.
The design of entire infrastructure part described in the present embodiment can be applied not only to household electrical appliances motor field, can also apply
In the field of other motors such as compressor electric motor.
By above-mentioned elaboration, those skilled in the art can implement.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (8)
1. a kind of built-in permanent magnetic motor, including stator, rotor, motor shaft and coiling combination, the stator are matched with rotor, fixed
Multiple coiling combinations are set on son, be provided with transmission motor shaft on rotor, it is characterised in that: rotor iron is set on the rotor
Multiple abnormity being spacedly distributed are arranged on rotor core in core and the permanent magnet that air gap losses are fitted close and can reduced with it
The permanent magnet of shape, the center axis of the permanent magnet are provided with magnetic open circuit structure in a circle of disconnection.
2. built-in permanent magnetic motor according to claim 1, it is characterised in that: the permanent magnet using ferrite sintered body,
One of rare-earth ferrite or modeling magnetic ferrites.
3. built-in permanent magnetic motor according to claim 1 or 2, it is characterised in that: the permanent magnet uses trapezoidal, triangle
Shape, semicircle and irregular shape.
4. built-in permanent magnetic motor according to claim 1, it is characterised in that: be arranged on the rotor core it is multiple with forever
The slot that magnet matches.
5. built-in permanent magnetic motor according to claim 1, it is characterised in that: a plurality of gap is arranged on the rotor core
The arc groove of distribution.
6. built-in permanent magnetic motor according to claim 1, it is characterised in that: elasticity is arranged in the interior magnetic open circuit structure
Material.
7. built-in permanent magnetic motor according to claim 1, it is characterised in that: the stator core front end is provided with more
A circular arc stepped groove or straight line stepped groove.
8. built-in permanent magnetic motor according to claim 6, it is characterised in that: the elastic material using rubber, PBT or
Person's nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556410.7A CN110247532A (en) | 2019-06-25 | 2019-06-25 | A kind of built-in permanent magnetic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910556410.7A CN110247532A (en) | 2019-06-25 | 2019-06-25 | A kind of built-in permanent magnetic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110247532A true CN110247532A (en) | 2019-09-17 |
Family
ID=67889461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910556410.7A Pending CN110247532A (en) | 2019-06-25 | 2019-06-25 | A kind of built-in permanent magnetic motor |
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| Country | Link |
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| CN (1) | CN110247532A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688452A (en) * | 2020-11-19 | 2021-04-20 | 京马电机有限公司 | Vibration-proof motor rotor structure |
| TWI771037B (en) * | 2021-06-04 | 2022-07-11 | 士林電機廠股份有限公司 | Motor magnet fixing structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206250857U (en) * | 2016-08-26 | 2017-06-13 | 广东威灵电机制造有限公司 | Magneto and air-conditioner |
| CN206685994U (en) * | 2017-03-24 | 2017-11-28 | 李致真 | The permanent magnet machine rotor and motor of a kind of low magnetism leakage |
| WO2018108492A1 (en) * | 2016-12-15 | 2018-06-21 | BSH Hausgeräte GmbH | Electric drive motor and domestic appliance or motor module system containing same |
-
2019
- 2019-06-25 CN CN201910556410.7A patent/CN110247532A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206250857U (en) * | 2016-08-26 | 2017-06-13 | 广东威灵电机制造有限公司 | Magneto and air-conditioner |
| WO2018108492A1 (en) * | 2016-12-15 | 2018-06-21 | BSH Hausgeräte GmbH | Electric drive motor and domestic appliance or motor module system containing same |
| CN206685994U (en) * | 2017-03-24 | 2017-11-28 | 李致真 | The permanent magnet machine rotor and motor of a kind of low magnetism leakage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688452A (en) * | 2020-11-19 | 2021-04-20 | 京马电机有限公司 | Vibration-proof motor rotor structure |
| TWI771037B (en) * | 2021-06-04 | 2022-07-11 | 士林電機廠股份有限公司 | Motor magnet fixing structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190917 |
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| RJ01 | Rejection of invention patent application after publication |