CN105720720A - Permanent magnet motor rotor - Google Patents
Permanent magnet motor rotor Download PDFInfo
- Publication number
- CN105720720A CN105720720A CN201610258702.9A CN201610258702A CN105720720A CN 105720720 A CN105720720 A CN 105720720A CN 201610258702 A CN201610258702 A CN 201610258702A CN 105720720 A CN105720720 A CN 105720720A
- Authority
- CN
- China
- Prior art keywords
- magnet
- pole
- rotating shaft
- permanent
- retaining mechanism
- 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
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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
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
- H02K1/2733—Annular magnets
-
- 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
Abstract
The invention provides a permanent magnet motor rotor, comprising a rotating shaft, a first magnet, a second magnet and a locking mechanism, wherein both of the first magnet and the second magnet are sleeved on the rotating shaft, and the first magnet and the second magnet are homopolarly and oppositely arranged in a pressing manner by the locking mechanism. The problems that the magnetic force of the existing permanent magnet motor is too weak to meet the increasing market demand, and that serial rotor structure is unreasonably designed to cause a too complex structure. The invention belongs to the field of permanent magnet motors.
Description
Technical field
The present invention relates to a kind of rotor, belong to magneto field.
Background technology
At present, conventional permanent magnet machine rotor is made up of rotating shaft, the pawl pole, front and back being sheathed in rotating shaft and the magnet that is arranged between pawl pole, this single magnet magnetic is relatively low, conversion ratio is relatively low, cannot meet at present the demand to magneto such as present stage automobile, have people to devise for this kind of magneto tandem rotor that application number is 2015200526036, in this rotor, the outside of two magnets is all arranged with magnetic partiting ring, the design of magnetic partiting ring is also unreasonable, simultaneously, this rotor has unnecessary middle claw-pole structure, and structure is excessively complicated.
Summary of the invention
It is an object of the invention to: a kind of permanent magnet machine rotor is provided, more weak to solve existing magneto magnetomotive, it is impossible to meet the market demand day by day strengthened, and tandem rotor structural design is unreasonable, the problem that structure is excessively complicated.
For solving the problems referred to above, intend adopting such a permanent magnet machine rotor, all it is sheathed in rotating shaft including rotating shaft, the first magnet, the second magnet and retaining mechanism, the first magnet and the second magnet, and the first magnet and the second magnet relatively compress setting by retaining mechanism homopolarity.
The outer ring of the first magnet and the second magnet is arranged with guard ring respectively, and guard ring is made up of permeability magnetic material, snap fit between mechanism and rotating shaft that the first magnet, the second magnet and retaining mechanism form.Guard ring can be selected for magnetic conduction or non-permeable material is made, with magnetic conductive material best results, it is preferable that magnetic conduction rubber；
Described retaining mechanism includes fore paw pole and rear solid end pole, and fore paw pole and rear solid end are extremely all set in rotating shaft, and the first magnet and the second magnet are fastened by fore paw pole and rear solid end extreme pressure；
Described retaining mechanism also includes median claw pole, median claw pole is also sheathed in rotating shaft, and median claw pole is arranged between the first magnet and the second magnet, first magnet and the second magnet are tightly arranged at the two ends of median claw pole respectively through fore paw pole and rear solid end extreme pressure, and the concrete structure of this retaining mechanism is the patent of invention of 2015200526036 referring to application number；
Each rotating shaft is arranged in series the above-mentioned fabricated structure combined by the first magnet, the second magnet and retaining mechanism of at least two groups, under the premise not changing magnet steel diameter, namely further enhances its magnetic intensity；
First magnet and the second magnet are rare earth permanent-magnetic material and make, or make both at other permanent magnet materials except rare earth permanent-magnetic material, or the two one of them magnet is that rare earth permanent-magnetic material is made, other permanent magnet materials that another magnet is except rare earth permanent-magnetic material are made.
The present invention is compared with prior art, have the advantages that this permanent magnet machine rotor can under the premise not increasing magnet steel diameter by the combination use of two pieces of magnets, it is greatly enhanced the magnetic intensity that magnet steel after combination is total, the spacing of two pieces of magnets is more near, the magnetic field intensity produced is more strong, simultaneously, without using magnetic partiting ring, even if for preventing magnet from crushing because of centrifugal action, also it is the guard ring adopting magnetic conductivity, avoid the weakening to magnetic field and obstruct, the service efficiency making magnet steel is maximized performance, greatly strengthen the conversion ratio of magneto, compare existing common magneto and generally can improve the conversion ratio of 40%, and ensure that rotor magnet when assembling production and using is hardly damaged, ensure that the feasibility of this technical scheme, advance the development process of magneto, it is suitable for wideling popularize application in magneto field.
Accompanying drawing explanation
Fig. 1 is the installation diagram of the present invention；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is the main TV structure schematic diagram of the magnet (for the first magnet) being cased with protective jacket；
When Fig. 4 is the claw-pole structure that retaining mechanism employing has median claw pole, the installation diagram of the present invention；
Fig. 5 is that retaining mechanism adopts the claw-pole structure with median claw pole, and when there is guard ring, the structural representation of the present invention；
Fig. 6 is two magnet homopolarities magnetic principles figure when being oppositely arranged, and dotted line is the magnetic line of force of single magnet, solid line be two magnet homopolarities relatively after the total magnetic lines of force.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below with reference to accompanying drawings,
Embodiment 1:
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 6, the present embodiment provides a kind of permanent magnet machine rotor, including rotating shaft the 1, first magnet the 2, second magnet 3 and retaining mechanism 4, first magnet 2 and the second magnet 3 are all sheathed in rotating shaft 1, and the first magnet 2 and the second magnet 3 relatively compress setting by retaining mechanism 4 homopolarity；
The outer ring of the first magnet 2 and the second magnet 3 is also arranged with guard ring 5 respectively, guard ring 5 is made up of magnetic conduction rubber, snap fit between mechanism and rotating shaft 1 that first magnet the 2, second magnet 3 and retaining mechanism 4 form, first magnet 2 and the second magnet 3 are rare earth permanent-magnetic material and make, first magnet the 2, second magnet 3 and retaining mechanism 4 can rotate with rotating shaft 1, and each rotating shaft 1 is arranged in series two groups of above-mentioned fabricated structures combined by first magnet the 2, second magnet 3 and retaining mechanism 4.
Embodiment 2:
With reference to Fig. 4 and Fig. 6, the present embodiment provides a kind of permanent magnet machine rotor, including rotating shaft the 1, first magnet the 2, second magnet 3 and retaining mechanism 4, first magnet 2 and the second magnet 3 are all sheathed in rotating shaft 1, and first magnet 2 and the second magnet 3 relatively compress setting by retaining mechanism 4 homopolarity, snap fit between mechanism and rotating shaft 1 that first magnet the 2, second magnet 3 and retaining mechanism 4 form；
Retaining mechanism 4 includes fore paw pole 41, rear solid end pole 42 and median claw pole 43, fore paw pole 41, rear solid end pole 42 and median claw pole 43 are all set in rotating shaft 1, median claw pole 43 is arranged between the first magnet 2 and the second magnet 3, first magnet 2 and the second magnet 3 compress, respectively through fore paw pole 41 and rear solid end pole 42, the two ends being arranged at median claw pole 43, the concrete structure of this retaining mechanism 4 is referring to fore paw pole in the patent that application number is 2015200526036, the structure of median claw pole and rear solid end pole, first magnet 2 and the second magnet 3 are rare earth permanent-magnetic material and make, first magnet 2, second magnet 3 and retaining mechanism 4 can rotate with rotating shaft 1.
Embodiment 3:
With reference to Fig. 3, Fig. 5 and Fig. 6, the present embodiment provides a kind of permanent magnet machine rotor, including rotating shaft the 1, first magnet the 2, second magnet 3 and retaining mechanism 4, the first magnet 2 and the second magnet 3 are all sheathed in rotating shaft 1, and the first magnet 2 and the second magnet 3 relatively compress setting by retaining mechanism 4 homopolarity.
The outer ring of the first magnet 2 and the second magnet 3 is also arranged with guard ring 5 respectively, and guard ring 5 is made up of magnetic conduction rubber, snap fit between mechanism and rotating shaft 1 that first magnet the 2, second magnet 3 and retaining mechanism 4 form；
Retaining mechanism 4 includes fore paw pole 41, rear solid end pole 42 and median claw pole 43, fore paw pole 41, rear solid end pole 42 and median claw pole 43 are all set in rotating shaft 1, median claw pole 43 is arranged between the first magnet 2 and the second magnet 3, first magnet 2 and the second magnet 3 compress, respectively through fore paw pole 41 and rear solid end pole 42, the two ends being arranged at median claw pole 43, the concrete structure of this retaining mechanism 4 is referring to fore paw pole in the patent that application number is 2015200526036, the structure of median claw pole and rear solid end pole, first magnet 2 and the second magnet 3 are rare earth permanent-magnetic material and make, first magnet 2, second magnet 3 and retaining mechanism 4 can rotate with rotating shaft 1.
Claims (9)
1. a permanent magnet machine rotor, it is characterized in that: include rotating shaft (1), the first magnet (2), the second magnet (3) and retaining mechanism (4), first magnet (2) and the second magnet (3) are all sheathed in rotating shaft (1), and the first magnet (2) and the second magnet (3) relatively compress setting by retaining mechanism (4) homopolarity.
2. a kind of permanent magnet machine rotor according to claim 1, it is characterized in that: the outer ring of the first magnet (2) and the second magnet (3) is arranged with guard ring (5) respectively, guard ring (5) is made up of permeability magnetic material, snap fit between mechanism and rotating shaft (1) that the first magnet (2), the second magnet (3) and retaining mechanism (4) form.
3. a kind of permanent magnet machine rotor according to claim 2, it is characterised in that: guard ring (5) is magnetic conduction rubber.
4. a kind of permanent magnet machine rotor according to claim 1, it is characterized in that: described retaining mechanism (4) includes fore paw pole (41) and rear solid end pole (42), fore paw pole (41) and rear solid end pole (42) are all set in rotating shaft (1), and the first magnet (2) and the second magnet (3) are fixed by fore paw pole (41) and rear solid end pole (42).
5. a kind of permanent magnet machine rotor according to claim 4, it is characterized in that: described retaining mechanism (4) also includes median claw pole (43), median claw pole (43) is also sheathed in rotating shaft (1), and median claw pole (43) are arranged between the first magnet (2) and the second magnet (3), the first magnet (2) and the second magnet (3) compress the two ends being arranged at median claw pole (43) respectively through fore paw pole (41) and rear solid end pole (42).
6. a kind of permanent magnet machine rotor according to claim 1, it is characterised in that: each rotating shaft (1) is arranged in series the above-mentioned fabricated structure combined by the first magnet (2), the second magnet (3) and retaining mechanism (4) of at least two groups.
7. a kind of permanent magnet machine rotor according to claim 1, it is characterised in that: the first magnet (2) and the second magnet (3) are rare earth permanent-magnetic material and make.
8. a kind of permanent magnet machine rotor according to claim 1, it is characterised in that: other permanent magnet materials that the first magnet (2) and the second magnet (3) are except rare earth permanent-magnetic material are made.
9. a kind of permanent magnet machine rotor according to claim 1, it is characterised in that: the first magnet (2) and the second magnet (3), one of them magnet is that rare earth permanent-magnetic material is made, and other permanent magnet materials that another magnet is except rare earth permanent-magnetic material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258702.9A CN105720720A (en) | 2016-04-25 | 2016-04-25 | Permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258702.9A CN105720720A (en) | 2016-04-25 | 2016-04-25 | Permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105720720A true CN105720720A (en) | 2016-06-29 |
Family
ID=56161517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610258702.9A Pending CN105720720A (en) | 2016-04-25 | 2016-04-25 | Permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105720720A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112900U (en) * | 1992-02-22 | 1992-08-12 | 北京市西城区新开通用试验厂 | Rare-earth permanent magnet component for motor rotor |
| CN1065162A (en) * | 1992-04-10 | 1992-10-07 | 山东工程学院科技开发中心 | Integrated permanent-magnet constant voltage generator for tractor |
| CN2354289Y (en) * | 1998-12-09 | 1999-12-15 | 福建省仙游闽电电机厂 | Double magnetic-path permanent-magnet generator of automobile |
| CN2414543Y (en) * | 2000-03-27 | 2001-01-10 | 福建省仙游闽电电机厂 | Multiple magnetic circuit permanent magnet genertor for car |
| CN2452197Y (en) * | 2000-11-16 | 2001-10-03 | 沈阳工业大学 | Rare-earth permasyn motor with high constant-power speed regulation ratio |
| CN2768311Y (en) * | 2005-02-02 | 2006-03-29 | 于波 | Permanent-magnet controlled constant voltage generator |
| US20070138892A1 (en) * | 2005-12-19 | 2007-06-21 | Emerson Electric Co. | Asymmetrical composite magnet structure for lobed rotor |
| CN101777810A (en) * | 2010-03-31 | 2010-07-14 | 哈尔滨工业大学 | Automatic inner-cooling rotor of high speed permanent magnet synchronous motor |
| CN205583876U (en) * | 2016-04-25 | 2016-09-14 | 河南汉拿永磁科技有限公司 | Rotor of permanent magnet motor |
-
2016
- 2016-04-25 CN CN201610258702.9A patent/CN105720720A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112900U (en) * | 1992-02-22 | 1992-08-12 | 北京市西城区新开通用试验厂 | Rare-earth permanent magnet component for motor rotor |
| CN1065162A (en) * | 1992-04-10 | 1992-10-07 | 山东工程学院科技开发中心 | Integrated permanent-magnet constant voltage generator for tractor |
| CN2354289Y (en) * | 1998-12-09 | 1999-12-15 | 福建省仙游闽电电机厂 | Double magnetic-path permanent-magnet generator of automobile |
| CN2414543Y (en) * | 2000-03-27 | 2001-01-10 | 福建省仙游闽电电机厂 | Multiple magnetic circuit permanent magnet genertor for car |
| CN2452197Y (en) * | 2000-11-16 | 2001-10-03 | 沈阳工业大学 | Rare-earth permasyn motor with high constant-power speed regulation ratio |
| CN2768311Y (en) * | 2005-02-02 | 2006-03-29 | 于波 | Permanent-magnet controlled constant voltage generator |
| US20070138892A1 (en) * | 2005-12-19 | 2007-06-21 | Emerson Electric Co. | Asymmetrical composite magnet structure for lobed rotor |
| CN101777810A (en) * | 2010-03-31 | 2010-07-14 | 哈尔滨工业大学 | Automatic inner-cooling rotor of high speed permanent magnet synchronous motor |
| CN205583876U (en) * | 2016-04-25 | 2016-09-14 | 河南汉拿永磁科技有限公司 | Rotor of permanent magnet motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |
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| RJ01 | Rejection of invention patent application after publication |