CN208423976U - A kind of excitation rotor structure - Google Patents
A kind of excitation rotor structure Download PDFInfo
- Publication number
- CN208423976U CN208423976U CN201821038680.6U CN201821038680U CN208423976U CN 208423976 U CN208423976 U CN 208423976U CN 201821038680 U CN201821038680 U CN 201821038680U CN 208423976 U CN208423976 U CN 208423976U
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- magnet steel
- rotor
- magnet
- steel group
- bar permanent
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Abstract
The utility model discloses a kind of excitation rotor structures, it includes armature spindle, several magnet steel groups for being distributed in outside armature spindle and the multiple rotor blocks formed are laminated by several punchings, each magnet steel group includes the bar permanent magnet of two V-shaped arrangements, link block is folded between two bar permanent magnets, two bar permanent magnets are heteropolar positioned opposite, each rotor block is located between two magnet steel groups, two neighboring magnet steel group homopolarity is positioned opposite, the magnetic field line that the magnet steel group of two sides is corresponded on each rotor block offers arc-shaped slot, air gap hole is also provided between the arc-shaped slot of two sides.Above-mentioned excitation rotor structure combines permanent magnet and magnetic resistance, overcomes the defect of other magneto alternator designs, improves electric efficiency, stable, and permanent magnet excellent heat radiation performance, ensure that motor performance.
Description
Technical field
The utility model relates to rotor technical field more particularly to a kind of excitation rotor structures.
Background technique
There are the following problems for traditional permanent-magnet synchronous electric motor: first, permanent magnet is located at d-axis magnetic circuit, makes d-axis magnetic
The magnetic resistance on road is greater than the magnetic resistance of quadrature axis magnetic circuit, therefore in the normal operation range of motor, and magnetic resistance moment plays permanent magnetic torque and cuts
Weak effect；Second, magnet steel is embedded in rotor core, rotor magnetic circuit magnetic resistance increases, and in starting process, linkage starts the effective of winding
Magnetic flux is restricted, and torque reduces, therefore starting performance is bad；Demagnetization phenomenon, function easily occur under permanent magnet high-temperature condition for third
It can property decline.
Utility model content
The purpose of this utility model is to provide a kind of excitation rotor structures, in view of the above-mentioned problems, optimization rotor structure, mentions
High motor performance.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of excitation rotor structure comprising armature spindle, several magnet steel groups being distributed in outside armature spindle and by several punchings
The multiple rotor blocks to be formed are laminated in piece, and each magnet steel group includes the bar permanent magnet of two V-shaped arrangements, two bar permanent magnets
Between be folded with link block, two bar permanent magnets are heteropolar positioned opposite, and each rotor block is located between two magnet steel groups, phase
Adjacent two magnet steel group homopolarities are positioned opposite, and the magnetic field line that the magnet steel group of two sides is corresponded on each rotor block offers arc-shaped slot,
Air gap hole is also provided between the arc-shaped slot of two sides.
Wherein, glue connection is fixed between bar permanent magnet, link block, and glue connection is fixed between rotor block, magnet steel group.
Wherein, fixation hole is provided on rotor block and link block.
To sum up, the beneficial effects of the utility model are, compared with prior art, the excitation rotor structure by permanent magnet and
Magnetic resistance combines, and overcomes the defect of other magneto alternator designs, improves electric efficiency, stable, and permanent magnetism
Body excellent heat radiation performance, ensure that motor performance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of excitation rotor structure provided by the embodiment of the utility model.
In figure:
1- armature spindle；2- magnet steel group；3- rotor block；4- bar permanent magnet；5- link block；6- arc-shaped slot；7- air gap hole；
8- fixation hole.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Refering to Figure 1, the present embodiment provides a kind of excitation rotor structure, mainly includes armature spindle 1, is distributed in and turns
Several magnet steel groups 2 outside sub- axis 1 and the multiple rotor blocks 3 formed are laminated by several punchings.The present embodiment is with four groups of magnet steel groups
2, for four rotor blocks 3, the bar permanent magnet 4 of each magnet steel group 2 including two V-shaped arrangements, two bar permanent magnets 4 it
Between be folded with link block 5, can be glue connection between bar permanent magnet 4, link block 5 and fix, two bar permanent magnets 4 are heteropolar opposite
Arrangement, each rotor block 3 is located between two magnet steel groups 2, can be glue connection between rotor block 3, magnet steel group 2 and fix, adjacent
Two 2 homopolarities of magnet steel group are positioned opposite, and the magnetic field line that the magnet steel group 2 of two sides is corresponded on each rotor block 3 offers arc-shaped slot
6, for effectively every magnetic and formation portion void, air gap hole 7 being also provided between the arc-shaped slot 6 of two sides, for improving
It is provided with fixation hole 8 on permanent magnet and winding heat-sinking capability, rotor block 3 and link block 5, is fixed for such as rivet etc..
To sum up, above-mentioned excitation rotor structure combines permanent magnet and magnetic resistance, overcomes other magneto alternators
The defect of design, actual test prove that efficiency is up to 95%, and excellent total harmonic distortion is less than 3%, no transition, load removal of dashing forward
When no-voltage sharp pulse, it is stable, and solve the problems, such as conventional permanent magnet high temperature demagnetization, excellent heat radiation performance.
Above embodiments only elaborate the basic principles and features of the present invention, and the utility model is not by above-mentioned example
Limitation, on the premise of not departing from the spirit and scope of the utility model, the present invention has various changes and changes, these changes
Change and change is fallen within the scope of the claimed invention.The utility model requires protection scope is wanted by appended right
Ask book and its equivalent thereof.
Claims (3)
1. a kind of excitation rotor structure, which is characterized in that including armature spindle, several magnet steel groups being distributed in outside the armature spindle with
And the multiple rotor blocks formed are laminated by several punchings, each magnet steel group includes the bar permanent magnet of two V-shaped arrangements,
Link block is folded between two bar permanent magnets, two bar permanent magnets are heteropolar positioned opposite, and each described turn
Daughter is located between two magnet steel groups, and two neighboring magnet steel group homopolarity is positioned opposite, corresponding on each rotor block
The magnetic field line of the magnet steel group of two sides offers arc-shaped slot, and air gap hole is also provided between the arc-shaped slot of two sides.
2. excitation rotor structure according to claim 1, it is characterised in that: glue between the bar permanent magnet, link block
Fixed is fixed, and glue connection is fixed between the rotor block, magnet steel group.
3. excitation rotor structure according to claim 1, it is characterised in that: be all provided on the rotor block and the link block
It is equipped with fixation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821038680.6U CN208423976U (en) | 2018-06-29 | 2018-06-29 | A kind of excitation rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821038680.6U CN208423976U (en) | 2018-06-29 | 2018-06-29 | A kind of excitation rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208423976U true CN208423976U (en) | 2019-01-22 |
Family
ID=65107942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821038680.6U Active CN208423976U (en) | 2018-06-29 | 2018-06-29 | A kind of excitation rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208423976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886742A (en) * | 2021-01-20 | 2021-06-01 | 浙江达可尔汽车电子科技有限公司 | Oil-cooled motor rotor |
-
2018
- 2018-06-29 CN CN201821038680.6U patent/CN208423976U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886742A (en) * | 2021-01-20 | 2021-06-01 | 浙江达可尔汽车电子科技有限公司 | Oil-cooled motor rotor |
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