CN111585366A - Outer rotor mounting structure of outer rotor motor - Google Patents
Outer rotor mounting structure of outer rotor motor Download PDFInfo
- Publication number
- CN111585366A CN111585366A CN201910124165.2A CN201910124165A CN111585366A CN 111585366 A CN111585366 A CN 111585366A CN 201910124165 A CN201910124165 A CN 201910124165A CN 111585366 A CN111585366 A CN 111585366A
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- China
- Prior art keywords
- ring
- magnet
- outer rotor
- external rotor
- fixed
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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
- 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
- H02K1/2786—Outer rotors
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- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention provides an outer rotor mounting structure of an outer rotor motor, which comprises: the center of the top of the outer rotating motor shell is provided with a fixed shaft, so that the outer rotating motor shell can rotate on the fixed shaft; the outer rotor is combined on the inner wall of the outer rotating motor shell and provided with an outer ring, an inner ring, a magnet sealing ring, a magnet spacing ring and a plurality of permanent magnets, the magnet sealing ring is combined between the outer ring and the inner ring in a surrounding manner, the magnet spacing ring is combined on the inner side surface of the magnet sealing ring in a surrounding manner, the magnet spacing ring is provided with a plurality of containing holes, and the plurality of permanent magnets are fixed in the plurality of containing holes of the magnet spacing ring, so that the permanent magnets are fixed through the outer ring, the inner ring and the magnet spacing ring, and the purpose of preventing the permanent magnets from loosening is achieved.
Description
Technical Field
The present invention relates to an external rotor motor, and more particularly, to an external rotor mounting structure of an external rotor motor applied to a large ceiling fan.
Background
The outer rotor is coupled to an inner wall of a motor housing, and the inner stator is coupled to a fixed shaft at a center of the motor, such that the outer rotor and the motor housing are driven to rotate by a magnetic field of an electromagnet of the inner stator, and further, fan blades fixed on or under the motor housing are driven to rotate. The known outer rotor is provided with a plurality of permanent magnets corresponding to the inner stator, and because the permanent magnets are not easy to lock, the permanent magnets are usually adhered to the inner wall of a magnet sealing ring in a motor shell in an adhesion mode, and spacers are additionally arranged among the permanent magnets for positioning. However, the technique of adhering the permanent magnet is easy to loosen the permanent magnet, thereby affecting the service life of the motor. Therefore, the present invention is to overcome the disadvantages that the permanent magnet cannot be locked and the permanent magnet adhesive structure is easy to loosen.
Disclosure of Invention
The main objective of the present invention is to provide an outer rotor mounting structure of an outer rotor motor, which is used to fix permanent magnets through an outer ring, an inner ring and a magnet spacing ring of the outer rotor of a ceiling fan motor, and the permanent magnets are not fixed by adhesives, thereby achieving the purpose of preventing the permanent magnets from loosening and prolonging the service life of the ceiling fan motor.
In order to achieve the above object, an outer rotor mounting structure of an outer rotor motor according to the present invention includes: an outer rotating motor shell, which is provided with a shell top and a side wall surrounding the shell top, wherein the center of the shell top is provided with a fixed shaft on which the outer rotating motor shell can rotate; an outer rotor having an outer ring fixed to an inner wall surface of a sidewall of the outer rotor motor case; the inner ring is fixed on the inner side surface of the outer ring; a magnet sealing ring which is combined between the outer ring and the inner ring in a surrounding way; the magnet spacing ring is combined on the inner side surface of the magnet sealing ring in a surrounding way and is provided with a plurality of accommodating holes which are arranged in an annular way; and the permanent magnets are fixed in the accommodating holes of the magnet spacing ring, so that each permanent magnet is wrapped between the outer ring and the inner ring and is fixed by the magnet spacing ring.
In the outer rotor mounting structure of the outer rotor motor, the fixed shaft is provided with an inner stator, and the inner stator is provided with a stator which is fixed on the fixed shaft and positioned in the outer rotor motor shell and a plurality of electromagnets combined around the stator.
In the outer rotor mounting structure of the outer rotor motor, the outer ring and the inner ring are both formed by a stainless steel ring piece, the inner side surface of the outer ring is provided with a groove, and the magnet sealing ring, the magnet spacing ring and the permanent magnet are accommodated in the groove.
In the outer rotor mounting structure of the outer rotor motor, the upper end and the lower end of the outer ring and the upper end and the lower end of the inner ring are welded and fixed together through a welding part respectively.
In the outer rotor mounting structure of the outer rotor motor, the upper end and the lower end of the outer ring and the upper end and the lower end of the inner ring are fixed together in a rolling, pressing and edge sealing mode through a combining part respectively.
In the outer rotor mounting structure of the outer rotor motor, the magnet spacing ring is a ring body formed by connecting a plurality of arc-shaped spacing pieces, and each spacing piece is provided with the containing hole.
The outer rotor mounting structure of the outer rotor motor of the invention clamps the magnet spacing ring through an outer ring and an inner ring of the outer rotor of the ceiling fan motor, and mounts the permanent magnet in the accommodating hole of the magnet spacing ring, and does not adopt the structure of fixing the permanent magnet by using the adhesive in the prior art, thereby achieving the effects of preventing the permanent magnet from loosening and prolonging the service life of the outer rotor motor.
Drawings
The features and advantages of the present invention are described in detail below with reference to the accompanying drawings:
FIG. 1 is a perspective view of a preferred embodiment of the fan outer rotating motor with fan blades of the present invention.
Fig. 2 is a schematic cross-sectional perspective view of an external rotation motor according to a preferred embodiment of the present invention.
Fig. 3 is an exploded perspective view of the outer rotor motor housing and the outer rotor according to the preferred embodiment of the present invention.
Fig. 4 is an exploded perspective view of a preferred embodiment of the outer rotor of the present invention.
Fig. 5 is a cross-sectional view of each member of the outer rotor according to the present invention in an exploded state.
Fig. 6 is a sectional view showing the combination state of the components of the outer rotor according to the present invention.
Fig. 7 is an exploded view of a preferred embodiment of the magnet spacer ring of the present invention.
Symbolic illustration in the drawings:
10 outer turning motor shell; 11 the top of the shell; 12 side walls; 13 a fan blade fixing part; 20 outer rotor; 21 outer ring turns; 211 a groove; 22 inner ring; 23 sealing the magnet ring; 24 magnet spacer rings; 241 accommodating hole; 242 spacer pieces; 25 a permanent magnet; 26 welding part; 30 an inner stator; 31 a stator; 32 electromagnets; 40 fixing the shaft; 50 fan blades.
Detailed Description
The invention is further described with reference to the following figures and specific examples, which are not intended to be limiting.
Referring to fig. 1, 2 and 3, the outer rotor mounting structure of the outer rotor motor of the present invention includes an outer rotor motor housing 10, an outer rotor 20 and an inner stator 30, wherein the outer rotor 20 and the outer rotor motor housing 10 are rotated by a magnetic force between the outer rotor 20 and the inner stator 30, so as to drive a plurality of blades 50 fixed on the outer rotor motor housing 10 to rotate.
Referring to fig. 2, one of the preferred embodiments of the outer turning motor housing 10 is a housing integrally cast from an aluminum alloy material, or can be implemented as a housing combined in other manners, and the main structure of the outer turning motor housing has a housing top 11, a sidewall 12 surrounding the housing top 11, and a plurality of blade fixing portions 13 formed on the housing top 11, and a fixing shaft 40 is disposed at the center of the housing top 11, so that the outer turning motor housing 10 can be driven by the outer rotor 20 to rotate on the fixing shaft 40, and further drive the plurality of blades 50 to rotate.
Referring to fig. 4, 5 and 6, the outer rotor 20 has a circular outer ring 21 and an inner ring 22, the outer ring 21 is fixed on the inner wall surface of the sidewall 12 of the outer rotor motor case 10, and the inner ring 22 is fixed on the inner side surface of the outer ring 21; a magnet sealing ring 23, wherein the magnet sealing ring 23 is circumferentially combined between the outer ring 21 and the inner ring 22; a magnet spacing ring 24, the magnet spacing ring 24 is combined on the inner side surface of the magnet sealing ring 23 in a surrounding way, and the magnet spacing ring 24 is provided with a plurality of containing holes 241 which are arranged in a ring shape; and a plurality of permanent magnets 25, the plurality of permanent magnets 25 being fixed in the plurality of receiving holes 241 of the magnet spacer ring 24, whereby each of the permanent magnets 25 is enclosed between the outer ring 21 and the inner ring 22 and fixed by the magnet spacer ring 24. The inner stator 30 mainly has a stator 31 fixed on the fixed shaft 40 and located in the outer rotor motor case 10, and a plurality of electromagnets 32 combined around the stator 31, thereby being capable of generating a magnetic field through the electromagnets 32 to drive the outer rotor 20 and the outer rotor motor case 10 to rotate.
Referring to fig. 4 to 6, the outer ring 21 and the inner ring 22 of the outer rotor 20 are both made of a stainless steel ring, and a groove 211 is formed on the inner side of the outer ring 21 by rolling or punching, so that the magnet sealing ring 23, the magnet spacing ring 24 and the permanent magnet 25 are accommodated in the groove 211, and then the inner ring 22 is combined with the inner side of the outer ring 21, and the upper and lower ends of the outer ring 21 and the inner ring 22 are welded and fixed together by a welding part 26, respectively, so that the magnet sealing ring 23, the magnet spacing ring 24 and the permanent magnet 25 are permanently fixed between the outer ring 21 and the inner ring 22, thereby achieving the effect of preventing the permanent magnet 25 from falling off. In addition, when the outer ring 21 and the inner ring 22 of the outer rotor 20 are combined by rolling, pressing, and sealing, the welding portion 26 can be used as a rolling, pressing and combining portion, so that the outer ring 21 and the inner ring 22 can be stably combined without falling off. In addition, referring to fig. 7, one of the preferred embodiments of the magnet spacer ring 24 is a circular ring body formed by connecting a plurality of arc-shaped spacers 242, and each of the arc-shaped spacers 242 is provided with the receiving hole 241, thereby making it easier to dispose the magnet spacer ring 24 in the groove 211 of the outer ring 21.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (6)
1. An outer rotor mounting structure of an outer rotor motor, comprising:
an outer rotating motor shell, which is provided with a shell top and a side wall surrounding the shell top, wherein the center of the shell top is provided with a fixed shaft on which the outer rotating motor shell can rotate;
an outer rotor having an outer ring fixed to an inner wall surface of a sidewall of the outer rotor motor case;
the inner ring is fixed on the inner side surface of the outer ring;
a magnet sealing ring which is combined between the outer ring and the inner ring in a surrounding way;
the magnet spacing ring is combined on the inner side surface of the magnet sealing ring in a surrounding way and is provided with a plurality of accommodating holes which are arranged in an annular way;
and the permanent magnets are fixed in the accommodating holes of the magnet spacing ring, so that each permanent magnet is wrapped between the outer ring and the inner ring and is fixed by the magnet spacing ring.
2. The external rotor mounting structure of an external rotor motor according to claim 1, wherein the fixing shaft is provided with an inner stator having a stator fixed on the fixing shaft and positioned in the external rotor motor case, and a plurality of electromagnets combined around the stator.
3. The external rotor mounting structure of an external rotor motor according to claim 1, wherein the outer ring and the inner ring are formed of a stainless steel ring piece, the inner side surface of the outer ring has a groove, and the seal magnet ring, the magnet spacer ring and the permanent magnet are received in the groove.
4. The external rotor mounting structure of an external rotor motor according to claim 3, wherein upper and lower ends of the outer and inner rings are welded together by a welding portion, respectively.
5. The external rotor mounting structure of an external rotor motor according to claim 3, wherein the upper and lower ends of the outer and inner rings are fixed together by a combination portion by rolling, pressing and sealing.
6. The external rotor mounting structure of an external rotor motor according to claim 1, wherein the magnet spacer ring is a ring body formed by connecting a plurality of arc-shaped spacers, each of which is provided with the receiving hole.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124165.2A CN111585366A (en) | 2019-02-19 | 2019-02-19 | Outer rotor mounting structure of outer rotor motor |
| US16/706,689 US11313374B2 (en) | 2019-02-19 | 2019-12-07 | Industrial ceiling fan structure |
| MYPI2020000826A MY201745A (en) | 2019-02-19 | 2020-02-17 | Industrial ceiling fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124165.2A CN111585366A (en) | 2019-02-19 | 2019-02-19 | Outer rotor mounting structure of outer rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111585366A true CN111585366A (en) | 2020-08-25 |
Family
ID=72114949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910124165.2A Withdrawn CN111585366A (en) | 2019-02-19 | 2019-02-19 | Outer rotor mounting structure of outer rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111585366A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63287348A (en) * | 1987-05-19 | 1988-11-24 | Mitsubishi Electric Corp | Magneto generator |
| KR100651296B1 (en) * | 2005-08-04 | 2006-11-29 | 엘지전자 주식회사 | Coupling structure and method of the permanent magnet of a motor |
| CN202524200U (en) * | 2012-04-17 | 2012-11-07 | 天津市禧福珑电动自行车有限公司 | Magnetic steel type outer rotor |
| CN209358314U (en) * | 2019-02-19 | 2019-09-06 | 金士盾科技股份有限公司 | Turn the outer rotor mounting structure of motor outside |
-
2019
- 2019-02-19 CN CN201910124165.2A patent/CN111585366A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63287348A (en) * | 1987-05-19 | 1988-11-24 | Mitsubishi Electric Corp | Magneto generator |
| US4877986A (en) * | 1987-05-19 | 1989-10-31 | Mitsubishi Denki Kabushiki Kaisha | Rotor of magnetic generator |
| KR100651296B1 (en) * | 2005-08-04 | 2006-11-29 | 엘지전자 주식회사 | Coupling structure and method of the permanent magnet of a motor |
| CN202524200U (en) * | 2012-04-17 | 2012-11-07 | 天津市禧福珑电动自行车有限公司 | Magnetic steel type outer rotor |
| CN209358314U (en) * | 2019-02-19 | 2019-09-06 | 金士盾科技股份有限公司 | Turn the outer rotor mounting structure of motor outside |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200825 |
|
| WW01 | Invention patent application withdrawn after publication |