CN203504325U - Permanent magnet fixing structure of double-stator axial direction magnetic field brushless dc motor rotor - Google Patents
Permanent magnet fixing structure of double-stator axial direction magnetic field brushless dc motor rotor Download PDFInfo
- Publication number
- CN203504325U CN203504325U CN201320663335.2U CN201320663335U CN203504325U CN 203504325 U CN203504325 U CN 203504325U CN 201320663335 U CN201320663335 U CN 201320663335U CN 203504325 U CN203504325 U CN 203504325U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- earth permanent
- rare
- rotor
- rare earth
- 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.)
- Expired - Lifetime
Links
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 43
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 43
- 241000239290 Araneae Species 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004512 die casting Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a permanent magnet fixing structure of a double-stator axial direction magnetic field brushless dc motor rotor; the permanent magnet fixing structure comprises a non magnetic conductive rotor support and rare earth permanent magnets; the rotor support is uniformly provided with a plurality of mounting through holes matched with the rare earth permanent magnets in a periphery direction; the inner circle size of the mounting through hole is slightly bigger than an outer circle size of the rare earth permanent magnet; the outer circle of the rare earth permanent magnet is wrapped by one or more fixing sheets; the rare earth permanent magnets wrapped by the fixing sheets are embedded in the mounting through holes. The beneficial effects are that the permanent magnet fixing structure is simple in structure, easy in operation and reliable in rotation, thereby solving the problem of firm embedment between the rare earth permanent magnets and the non magnetic conductive rotor support of the rotor of the dual-stator motor, so the rare earth permanent magnets can be firmly embedded in the non magnetic conductive rotor support, thereby forming the rotor of the dual-stator motor, and the rotor can reliably operate in safety.
Description
Technical field
The utility model relates to the magnet fixing structure of permanent of a kind of pair of stator shaft orientation magnetic field brushless DC motor rotor.
Background technology
The rotor of two stator shaft orientation magnetic field permanent magnet brushless DC motors (hereinafter to be referred as " two stator motor ") need be inlayed some block-shaped identical rare-earth permanent magnets in the rotor field spider of non-magnetic material equably.Its common fixed structure has:
Injection molding: rotor field spider material is plastics, opens injection mold, enters non-magnetic vinyl disc by some rare-earth permanent magnet injection mouldings;
Die casting or casting type: rotor field spider be non-magnetic metal as aluminium, copper, stainless steel etc., open die casting or casting die, some rare-earth permanent magnets are inlayed into the rotor field spider of the materials such as aluminium, copper or stainless steel by die casting or casting.
Above-mentioned injection moulding, die casting or three kinds of structures of cast and process, have common feature:
1) need mold and need have the main equipments such as injection moulding, die casting or casting;
2) maximum problem is that they are all high temperature hot working, can cause rare-earth permanent magnet loss of excitation.
Adhesive type: dig out several holes identical with rare earth permanent magnet shape on non-magnetic rotor field spider, enter rotor field spider by rare-earth permanent magnet is gluing.
The disadvantage of this structure and process is, gluing fastness is difficult to guarantee, particularly when rotor high-speed rotates, easily makes permanent magnet throw away and causes the critical failure of motor.
The gluing surface protection type that adds: on adhesive type basis again at one or two end face rivetings of rotor or a sticky non-magnetic protective layer.
The defect of this structure and process is: protective layer book, do not have the effect that guarantees that permanent magnet does not throw away; The thick air gap that increases motor reduces the efficiency of motor.
Utility model content
The technical problems to be solved in the utility model is: for the installation question of permanent magnet and rotor field spider, the utility model provides the magnet fixing structure of permanent of a kind of pair of stator shaft orientation magnetic field permanent magnet brushless DC motor rotor.
The utility model solves the technical scheme that its technical problem adopts: the magnet fixing structure of permanent of a kind of pair of stator shaft orientation magnetic field brushless DC motor rotor, comprise non-magnetic rotor field spider and rare-earth permanent magnet, on rotor field spider, be circumferentially evenly equipped with a plurality of installation through holes that match with rare-earth permanent magnet, in described installation through hole, all sizes are slightly larger than rare-earth permanent magnet peripheral dimension, the periphery of described rare-earth permanent magnet is surrounded by one or more stators, and the rare-earth permanent magnet that is surrounded by stator is embedded in the installation through hole of rotor field spider.
Fixing reliable in order to guarantee, one or more stator inclusions are in the periphery of rare-earth permanent magnet, and the place, nearly two ends of described stator is along the end face of rare-earth permanent magnet and the bending of the corner of side, and difference inclusion is in upper surface and the lower surface of rare-earth permanent magnet.
The beneficial effects of the utility model are, the magnet fixing structure of permanent of of the present utility model pair of stator shaft orientation magnetic field permanent magnet brushless DC motor rotor, have simple in structure, easy to operate, reliable feature turns round, the rare-earth permanent magnet of " two stator motor " rotor and the difficult problem that non-magnetic rotor field spider is firmly inlayed have been solved, guarantee that rare-earth permanent magnet inlays securely into non-magnetic rotor field spider, the rotor that forms " two stator motor ", moves it safely and reliably.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
In figure: 1, rotor field spider, 2, stator, 3, rare-earth permanent magnet.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, 2, embodiment of the present utility model, comprise non-magnetic rotor field spider 1, some stators 2 and rare-earth permanent magnet 3, on rotor field spider 1, be circumferentially evenly equipped with a plurality of through holes of installation one to one that match with rare-earth permanent magnet 3, all sizes in through hole are installed and are slightly larger than rare-earth permanent magnet 3 peripheral dimension, the periphery of each rare-earth permanent magnet 3 is all surrounded by several stators 2, the rare-earth permanent magnet 3 that is surrounded by stator 2 is embedded in installation through hole, and the rare-earth permanent magnet 3 that is surrounded by stator 2 is interference fit with through hole is installed.Stator 2 is fitted in the periphery of rare-earth permanent magnet 3, and place, the nearly two ends of stator 2 is along the end face of rare-earth permanent magnet 3 and the bending of the corner of side, and bag is affixed on rare-earth permanent magnet 3 upper surfaces and lower surface respectively.Solved the rare-earth permanent magnet of " two stator motor " rotor and the difficult problem that non-magnetic rotor field spider is firmly inlayed, guaranteed that rare-earth permanent magnet inlays securely into non-magnetic rotor field spider, formed the rotor of " two stator motor ", it is moved safely and reliably.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (2)
1. the magnet fixing structure of permanent of two stator shaft orientations magnetic field brushless DC motor rotor, it is characterized in that: comprise non-magnetic rotor field spider (1) and rare-earth permanent magnet (3), on rotor field spider (1), be circumferentially evenly equipped with a plurality of installation through holes that match with rare-earth permanent magnet (3), in described installation through hole, all sizes are slightly larger than rare-earth permanent magnet (3) peripheral dimension, the periphery of described rare-earth permanent magnet (3) is surrounded by one or more stators (2), and the rare-earth permanent magnet (3) that is surrounded by stator (2) is embedded in the installation through hole of rotor field spider (1).
2. the magnet fixing structure of permanent of as claimed in claim 1 pair of stator shaft orientation magnetic field brushless DC motor rotor, it is characterized in that: one or more stators (2) inclusion is in the periphery of rare-earth permanent magnet (3), the place, nearly two ends of described stator (2) is along the end face of rare-earth permanent magnet (3) and the bending of the corner of side, and difference inclusion is in upper surface and the lower surface of rare-earth permanent magnet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663335.2U CN203504325U (en) | 2013-10-25 | 2013-10-25 | Permanent magnet fixing structure of double-stator axial direction magnetic field brushless dc motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663335.2U CN203504325U (en) | 2013-10-25 | 2013-10-25 | Permanent magnet fixing structure of double-stator axial direction magnetic field brushless dc motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504325U true CN203504325U (en) | 2014-03-26 |
Family
ID=50335269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320663335.2U Expired - Lifetime CN203504325U (en) | 2013-10-25 | 2013-10-25 | Permanent magnet fixing structure of double-stator axial direction magnetic field brushless dc motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203504325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257171A (en) * | 2017-08-22 | 2017-10-17 | 成都银河磁体股份有限公司 | A kind of integral type rotor assembly with sensor magnet and driving magnet |
-
2013
- 2013-10-25 CN CN201320663335.2U patent/CN203504325U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257171A (en) * | 2017-08-22 | 2017-10-17 | 成都银河磁体股份有限公司 | A kind of integral type rotor assembly with sensor magnet and driving magnet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2005119886A3 (en) | Axial-flux, permanent magnet electrical machine | |
| WO2009143242A3 (en) | Motor/generator structure | |
| EP2339719A3 (en) | Permanent magnet type rotating electric machine | |
| CN204168098U (en) | Permanent-magnetic synchronous motor rotor | |
| CN103208881B (en) | A kind of axial switch magnetic resistance gearless machine | |
| WO2008016425A3 (en) | Axial-flux electric machine | |
| CN208445372U (en) | A kind of disk rotor and disc type electric machine | |
| CN103117610A (en) | Magnetic-steel-embedded rotor structure of brushless motor | |
| CN203504325U (en) | Permanent magnet fixing structure of double-stator axial direction magnetic field brushless dc motor rotor | |
| CN201393106Y (en) | Permanent magnet modular type brushless direct current motor | |
| CN102522840A (en) | Permanent-magnet motor rotor | |
| CN206575251U (en) | The rotor and brushless electric machine of brushless electric machine | |
| CN102522835B (en) | Brushless direct current permanent magnet motor having characteristics of low noise, low vibration and low temperature rise and assembly technology thereof | |
| CN202475066U (en) | Rotor tangential structure for permanent magnet synchronous motor | |
| CN104518584A (en) | Rare earth permanent magnetic motor employing glass fiber reinforced plastic for magnetic isolation | |
| CN203632381U (en) | Permanent magnet motor rotor iron core | |
| CN201490788U (en) | Rotor of permanent magnet motor | |
| CN202940657U (en) | Permanent magnet synchronous motor rotor with herringbone permanent magnet oblique pole | |
| CN201178342Y (en) | Permanent magnetic rotator | |
| CN204810097U (en) | Built -in permanent -magnet machine | |
| CN202550728U (en) | Rotor punching sheet structure of permanent-magnet synchronous motor | |
| CN203387310U (en) | Ferrite magnet motor inner rotor | |
| CN103904796A (en) | Disc type motor | |
| CN2870278Y (en) | Water pump permanent-magnet rotor | |
| CN202550843U (en) | High power density high power disc-type driving motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 213214 No. 1266 Baita Road, Golden Town, Jintan District, Jiangsu, Changzhou Patentee after: CHANGZHOU JINTAN WEITE MOTOR Co.,Ltd. Address before: 213214 Jiangsu city of Changzhou province Jintan Jincheng Baita Industrial Zone Dan Jin Road No. 98 Patentee before: JINTAN MICRO & SPECIAL MOTOR CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |