CN102684339A - Permanent magnet rotor - Google Patents
Permanent magnet rotor Download PDFInfo
- Publication number
- CN102684339A CN102684339A CN2012101619946A CN201210161994A CN102684339A CN 102684339 A CN102684339 A CN 102684339A CN 2012101619946 A CN2012101619946 A CN 2012101619946A CN 201210161994 A CN201210161994 A CN 201210161994A CN 102684339 A CN102684339 A CN 102684339A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- groove
- rotor
- row
- yoke
- 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.)
- Pending
Links
- 238000005520 cutting process Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000003475 lamination Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to a permanent magnet rotor for alternating current motors, belonging to the technical field of motors. The rotor comprises a magnet yoke, permanent magnets and a fixing frame, wherein magnetic grooves are arranged on the fixing frame at intervals; the fixing frame wraps the circumferential surface of the magnet yoke and is fixedly connected with the magnet yoke so as to form pits on the surface of the magnet yoke; and the permanent magnets are inlaid in the magnetic grooves and stick to the surface of the magnet yoke. The rotor has the following beneficial effects: the permanent magnets are positioned by the fixing frame and can not carry out radial displacement; the shear forces borne by the permanent magnets are jointly borne by adhesives and the fixing frame; as the fixing frame can be stamped and the magnetic grooves can be self-determined and can be chutes or can not be chutes, the rotor has a simple structure and a reliable process; the surface of the magnet yoke can be smooth, so the magnet yoke is unnecessary to be formed by superposing laminations and can be iron-cast or steel-cast, thus lowering the material cost under the condition of meeting the property requirements; and as the length of the permanent magnet rotor is not limited, the permanent magnets can be single-segment or multi-segment.
Description
Technical field
The present invention relates to the p-m rotor that a kind of alternating current machine is used, belong to technical field of motors.
Background technology
The p-m rotor of surface watt shape permanent-magnet structure; Permanent magnet is a watt type; Be evenly distributed on the cylinder yoke, in order to prevent the permanent magnet displacement, generally all adopt following method: the method that 1) sticks with glue is fixed on permanent magnet on the cylinder yoke; The problem that this structure exists is: need do frock before pasting, only depend on the characteristic of glue to overcome shearing force after the stickup; Permanent magnet is loosening easily.2) dovetail shaped is processed in watt shape permanent magnet both sides, is provided with the press strip of processing with non-magnet material in the permanent magnet both sides, press strip is fastened on the yoke cylindrical with screw, utilizes the press strip both sides that permanent magnet is compressed; Be prone to loosening problem though this technology has solved permanent magnet, need on the cylinder yoke, process many screws, complex process, manufacturing expense height.3) add the end plate that non-magnet material is made at the yoke two ends, end plate has the flange identical with permanent magnet quantity, utilizes the flange on the end plate that permanent magnet is located.Though this scheme has been avoided the problem of processing screw hole on the cylinder yoke,, permanent magnet can only single-rowly use, and can not the multistage parallel connection use.4) rotor punching is gone out dovetail groove, and permanent magnet inserts wherein.Though this structure has solved the shortcoming of above-mentioned three schemes, rotor must form by lamination, and for the magneto of little load, material cost is higher.
Summary of the invention
The object of the present invention is to provide that manufacturing process is simple, cost is low, a watt shape permanent magnetism physical efficiency is securely fixed in the p-m rotor on the yoke.
The objective of the invention is to realize like this.
A kind of p-m rotor; Comprise yoke, permanent magnet, fixed mount, fixed mount is interval with the magnetic groove, and fixed mount wraps up the yoke circumferential surface and is fixedly connected with yoke; So that form a rule pit in yoke surfaces, permanent magnet is embedded in the magnetic groove and with yoke surfaces to be pasted.
Technique scheme also can be done following further perfect.
Said magnetic groove extends axially along fixed mount at length direction, magnetic groove border seal.
Said magnetic groove is divided into two rows along the fixed mount circumferencial direction.Each bar magnetic groove in two row's magnetic grooves is corresponding one by one at the fixed mount axial direction.The abutting end of two row's magnetic grooves is through cutting off separately two row's magnetic groove border seals.
Or said magnetic groove is divided into two rows along the fixed mount circumferencial direction.The abutting end of two row's magnetic grooves is through cutting off separately, and the other end of two row's magnetic grooves not sealing is openend, and the circumferential surface of said yoke forms a circle groove, and fixed mount is embedded in the groove, the openend of sidewall sealing two row's magnetic grooves of groove.
Perhaps said magnetic groove is divided into two rows along the fixed mount circumferencial direction.Each bar magnetic groove in said two row's magnetic grooves staggers at the fixed mount axial direction one by one.The abutting end of two row's magnetic grooves is through cutting off separately two row's magnetic groove border seals.
Perhaps said magnetic groove is divided into two rows along the fixed mount circumferencial direction.The abutting end of said two row's magnetic grooves is through cutting off separately, and the other end of two row's magnetic grooves not sealing is openend, and the circumferential surface of said yoke forms a circle groove, and fixed mount is embedded in the groove, the openend of sidewall sealing two row's magnetic grooves of groove.
Above-mentioned all yokes are laminated by punching and form or formed by iron casting.
Permanent magnet radially can not produce displacement through the fixed mount location, and the shearing force that permanent magnet bears is born by characteristic and the fixed mount of pasting glue jointly.Because fixed mount can be stamped to form, the magnetic groove is customized, and skewed slot can be arranged, also can be without skewed slot; So simple in structure, technology is reliable.Because yoke surfaces can be smooth, thus yoke needn't necessarily be overrided to form by punching, can be cast iron, cast steel, satisfy under the situation of performance requirement and reduced material cost.And PM rotor length is unrestricted, and permanent magnet can single hop, also can multistage.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the fixed mount stereogram.
Fig. 3 is the axial cutaway view of yoke.
Fig. 4 is the end view of Fig. 1, and wherein showing a polarity is N utmost point permanent magnet cutaway view.
Fig. 5 is the fixed mount stereogram of embodiment 2.
Fig. 6 is the fixed mount stereogram of embodiment 3.
Fig. 7 is the yoke cutaway view of embodiment 3.
Fig. 8 is the fixed mount stereogram of embodiment 4.
Fig. 9 is the fixed mount stereogram of embodiment 5.
Figure 10 is the fixed mount stereogram of embodiment 6.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Said fixing frame 3 is an one flat plate, forms magnetic groove 4 through punching press, is rolling up in yoke 1 surface then.It is exactly directly to form the magnetic groove by cylindrical body through punching press that fixed mount 3 also has a kind of mode, squeezes into yoke in the hollow body of fixed mount 3 then.
Embodiment 5, and in conjunction with Fig. 9, because other structure is identical with embodiment 1, present embodiment is only described fixed rack structure.Said magnetic groove 4 is divided into two rows along fixed mount 3 peripheral directions, and each bar magnetic groove among two row's magnetic groove A, the B 4 staggers at the fixed mount axial direction one by one.The abutting end of two row's magnetic groove A, B is opened every magnetic groove 4 border seals through cutting off 5 fens.
Embodiment 6, and in conjunction with Figure 10, embodiment 6 only is with the difference of embodiment 3: each the bar magnetic groove among two row's magnetic groove A, the B staggers at fixed mount 3 axial directions one by one.
Claims (10)
1. p-m rotor; Comprise yoke and permanent magnet; It is characterized in that: comprise that also fixed mount, fixed mount are interval with the magnetic groove, fixed mount wraps up the yoke circumferential surface and is fixedly connected with yoke; So that form a rule pit in yoke surfaces, permanent magnet is embedded in the magnetic groove and with yoke surfaces to be pasted.
2. according to the said p-m rotor of claim 1, it is characterized in that: said magnetic groove extends axially along fixed mount at length direction, magnetic groove border seal.
3. according to the said p-m rotor of claim 1, it is characterized in that: said magnetic groove is divided into two rows along the fixed mount circumferencial direction.
4. according to the said p-m rotor of claim 3, it is characterized in that: each the bar magnetic groove in said two row's magnetic grooves is corresponding one by one at the fixed mount axial direction.
5. according to the said p-m rotor of claim 4, it is characterized in that: the abutting end of said two row's magnetic grooves is through cutting off separately two row's magnetic groove border seals.
6. according to the said p-m rotor of claim 4; It is characterized in that: the abutting end of said two row's magnetic grooves is through cutting off separately; The other end of two row's magnetic grooves not sealing is openend; The circumferential surface of said yoke forms a circle groove, and fixed mount is embedded in the groove, the openend of sidewall sealing two row's magnetic grooves of groove.
7. according to the said p-m rotor of claim 3, it is characterized in that: each the bar magnetic groove in said two row's magnetic grooves staggers at the fixed mount axial direction one by one.
8. according to the said p-m rotor of claim 7, it is characterized in that: the abutting end of said two row's magnetic grooves is through cutting off separately two row's magnetic groove border seals.
9. according to the said p-m rotor of claim 7; It is characterized in that: the abutting end of said two row's magnetic grooves is through cutting off separately; The other end of two row's magnetic grooves not sealing is openend; The circumferential surface of said yoke forms a circle groove, and fixed mount is embedded in the groove, the openend of sidewall sealing two row's magnetic grooves of groove.
10. according to the said p-m rotor of the arbitrary claim of claim 1-9, it is characterized in that: said yoke is laminated by punching and forms or formed by iron casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101619946A CN102684339A (en) | 2012-05-23 | 2012-05-23 | Permanent magnet rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101619946A CN102684339A (en) | 2012-05-23 | 2012-05-23 | Permanent magnet rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102684339A true CN102684339A (en) | 2012-09-19 |
Family
ID=46815858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101619946A Pending CN102684339A (en) | 2012-05-23 | 2012-05-23 | Permanent magnet rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102684339A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810947A (en) * | 2014-01-27 | 2015-07-29 | 台达电子工业股份有限公司 | Magnet module and fan |
| JP2019504606A (en) * | 2016-02-04 | 2019-02-14 | シーメンス アクチエンゲゼルシヤフトＳｉｅｍｅｎｓ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Rotor of permanent magnet excitation type synchronous machine, spacer member between magnetic poles for rotor, and method of manufacturing rotor |
| US10931156B2 (en) | 2014-01-27 | 2021-02-23 | Delta Electronics, Inc. | Magnet module and fan with magnet module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121093U (en) * | 1992-06-04 | 1992-11-04 | 北京市西城区新开通用试验厂 | Squirrel-cage permanent magnetism rotor |
| CN202535176U (en) * | 2012-05-23 | 2012-11-14 | 佛山市顺德区金泰德胜电机有限公司 | Permanent magnet rotor |
-
2012
- 2012-05-23 CN CN2012101619946A patent/CN102684339A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2121093U (en) * | 1992-06-04 | 1992-11-04 | 北京市西城区新开通用试验厂 | Squirrel-cage permanent magnetism rotor |
| CN202535176U (en) * | 2012-05-23 | 2012-11-14 | 佛山市顺德区金泰德胜电机有限公司 | Permanent magnet rotor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810947A (en) * | 2014-01-27 | 2015-07-29 | 台达电子工业股份有限公司 | Magnet module and fan |
| CN104810947B (en) * | 2014-01-27 | 2018-01-02 | 台达电子工业股份有限公司 | Magnet module and fan |
| US10931156B2 (en) | 2014-01-27 | 2021-02-23 | Delta Electronics, Inc. | Magnet module and fan with magnet module |
| JP2019504606A (en) * | 2016-02-04 | 2019-02-14 | シーメンス アクチエンゲゼルシヤフトＳｉｅｍｅｎｓ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Rotor of permanent magnet excitation type synchronous machine, spacer member between magnetic poles for rotor, and method of manufacturing rotor |
| US11075554B2 (en) | 2016-02-04 | 2021-07-27 | Siemens Aktiengesellschaft | Rotor for a permanent magnet synchronous machine, pole gap rod for such a rotor, and method for producing such a rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |