CN105099024A - Rotor structure of permanent magnet direct-current motor - Google Patents
Rotor structure of permanent magnet direct-current motor Download PDFInfo
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- CN105099024A CN105099024A CN201510444039.7A CN201510444039A CN105099024A CN 105099024 A CN105099024 A CN 105099024A CN 201510444039 A CN201510444039 A CN 201510444039A CN 105099024 A CN105099024 A CN 105099024A
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- magnetic
- magnetic sheet
- rotor disk
- motor
- rotor
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention belongs to the technical field of permanent magnet brushless halless double magnetic circuit motors, and particularly relates to a rotor structure of a permanent magnet direct-current motor. The rotor structure comprises magnetic sheets, a rotor disk and a shaft, wherein the rotor disk is mounted on the shaft; the magnetic sheets are inserted in hollow grooves of the rotor disk; grooves are formed in two connecting edges of each magnetic sheet, and the edges of the hollow groove are inserted into the grooves in the two connecting edges of the magnetic sheet; and an annular magnetic sheet fixing ring is further mounted at the top of the rotor disk. The rotor structure has the beneficial effects that: 1, the magnetic sheets are low in consumption and low in price; 2, the structure is simple, the installation is convenient, the magnetic sheets can be conveniently taken out, and when the magnetic sheets are demagnetized to cause performance reduction of the motor, the magnetic sheets can be magnetized for multiple times to restore the performance of the motor; 3, the axial double magnetic circuit structure is compact, and the motor power density is high, so that the power can be doubled when less than 1/3 of volume weight is increased; and 4, the axial magnetic circuits are perpendicular to a direction of winding current, so that the motor is high in efficiency and low in magnetic loss.
Description
Technical field
The invention belongs to a kind of brushless, permanently without Hall Double magnetic circuit motor technical field, refer to a kind of rotor structure of permanent magnet DC motor especially.
Background technology
The magnetic sheet of common electric machine has two kinds of mounting meanss: a kind of is be attached to regularly on the circumferential inner wall of cylinder by magnetic sheet seccotine, and as shown in Figure 1, comprise cylinder 1 and magnetic sheet 2, magnetic sheet 2 is fixed on the circumferential inner wall of cylinder 1, and forms radial magnetic circuit.
Another kind is attached in the card of disk by magnetic sheet, and see accompanying drawing 2, comprise disk 1 and magnetic sheet 2, magnetic sheet 2 is fixed in the card of disk 1, formation be axial this road.
Above-mentioned two kinds of structures all cannot realize the double magnetic circuit of single group magnetic sheet, cause design of electrical motor not compact, there is the shortcoming that power density is difficult to increase.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and a kind of rotor structure of permanent magnet DC motor is provided.
The present invention is achieved through the following technical solutions, and comprises magnetic sheet, rotor disk and axle, and described rotor disk is arranged on axle, and described magnetic sheet is inserted in the dead slot of rotor disk, and two fillets of described magnetic sheet have groove, inserts the edge of the dead slot of rotor disk; The top of described rotor disk is also provided with the magnetic sheet retainer plate of annular.
Described magnetic sheet retainer plate is installed on the top of rotor disk.This structure is convenient to install, take out magnetic sheet.
Beneficial effect of the present invention is, 1. magnetic sheet consumption is few, and price is low; 2. structure is simple, is convenient to install and facilitates taken out by magnetic sheet, when magnetic sheet has demagnetization phenomenon to make motor performance decline, repeatedly can magnetize to magnetic sheet, recover motor performance; 3. axial double magnetic circuit compact conformation, power of motor density is large, and volume weight increase can double less than 1/3 power; 4. axial magnetic circuit is vertical with winding current direction, then electric efficiency is high, magnetic loss is little.
Accompanying drawing explanation
Accompanying drawing 1 is one of magnetic sheet structure of common electric machine.
Accompanying drawing 2 is the magnetic sheet structure two of common electric machine.
Accompanying drawing 3 is structure chart of the present invention.
Accompanying drawing 4 is the cutaway view of Fig. 3.
Accompanying drawing 5 is that scheme of installation inlayed by the magnetic sheet of Fig. 3 and rotor disk.
Embodiment
Below in conjunction with the accompanying drawing 3 to 5 in the embodiment of the present invention, be described the technical scheme in the embodiment of the present invention, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The present invention includes magnetic sheet 1 and rotor disk 2, described rotor disk 2 is arranged on axle 3, and described magnetic sheet 1 is inserted in the dead slot 21 of rotor disk 2, and two fillets of described magnetic sheet 1 have groove 11, inserts the edge of the dead slot 21 of rotor disk 2; Also comprise magnetic sheet retainer plate 4, be fixed by magnetic sheet retainer plate 4 after described rotor disk 2 is plugged with magnetic sheet 1.
Because described magnetic sheet retainer plate 4 is installed on the top of rotor disk 2, structure is convenient to install, take out magnetic sheet 1; When magnetic sheet 1 has demagnetization phenomenon to make motor performance decline, magnetic sheet retainer plate 4 can be taken off, then magnetic sheet 1 is taken off along groove 11 between rotor disk 2, magnetic sheet 1 is magnetized, multi-pass operation can recover motor performance.This structure is simple, and magnetic sheet 1 consumption is few, and price is low.Magnetic sheet 1 is embedded between rotor disk 2, then both sides can form magnetic circuit, i.e. axial double magnetic circuit; Axial magnetic circuit is vertical with winding current direction, then electric efficiency is high, magnetic loss is little.Axial double magnetic circuit compact conformation, power of motor density is large, and volume weight increase can double less than 1/3 power.
Claims (2)
1. a rotor structure for permanent magnet DC motor, comprises magnetic sheet (1), rotor disk (2), and described rotor disk (2) is arranged on axle (3),
It is characterized in that, described magnetic sheet (1) is embedded in the dead slot (21) of rotor disk (2), and two fillets of described magnetic sheet (1) have groove (11), inserts the edge of the dead slot (21) of rotor disk (2);
Also comprise magnetic sheet retainer plate (4), be fixed by magnetic sheet retainer plate (4) after described rotor disk (2) and magnetic sheet (1) are plugged.
2. the rotor structure of a kind of permanent magnet DC motor according to claim 1, is characterized in that, described magnetic sheet retainer plate (4) is movably arranged in the top of rotor disk (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444039.7A CN105099024A (en) | 2015-07-27 | 2015-07-27 | Rotor structure of permanent magnet direct-current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444039.7A CN105099024A (en) | 2015-07-27 | 2015-07-27 | Rotor structure of permanent magnet direct-current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105099024A true CN105099024A (en) | 2015-11-25 |
Family
ID=54578846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510444039.7A Withdrawn CN105099024A (en) | 2015-07-27 | 2015-07-27 | Rotor structure of permanent magnet direct-current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105099024A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202840738U (en) * | 2012-09-28 | 2013-03-27 | 深圳市瀚美特科技有限公司 | Permanent magnet axial DC motor and permanent magnet iron-coreless DC motor rotor assembly thereof |
| CN103384098A (en) * | 2013-05-23 | 2013-11-06 | 杭州娃哈哈科技有限公司 | Disc type motor rotor |
| CN104377846A (en) * | 2013-08-16 | 2015-02-25 | 米巴烧结奥地利有限公司 | Disc rotor motor |
| TW201524087A (en) * | 2013-12-11 | 2015-06-16 | Dynax Corp | Axial gap motor |
-
2015
- 2015-07-27 CN CN201510444039.7A patent/CN105099024A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202840738U (en) * | 2012-09-28 | 2013-03-27 | 深圳市瀚美特科技有限公司 | Permanent magnet axial DC motor and permanent magnet iron-coreless DC motor rotor assembly thereof |
| CN103384098A (en) * | 2013-05-23 | 2013-11-06 | 杭州娃哈哈科技有限公司 | Disc type motor rotor |
| CN104377846A (en) * | 2013-08-16 | 2015-02-25 | 米巴烧结奥地利有限公司 | Disc rotor motor |
| TW201524087A (en) * | 2013-12-11 | 2015-06-16 | Dynax Corp | Axial gap motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151125 |