CN206226148U - Rotor for electromotor - Google Patents
Rotor for electromotor Download PDFInfo
- Publication number
- CN206226148U CN206226148U CN201621084336.1U CN201621084336U CN206226148U CN 206226148 U CN206226148 U CN 206226148U CN 201621084336 U CN201621084336 U CN 201621084336U CN 206226148 U CN206226148 U CN 206226148U
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- Prior art keywords
- magnet steel
- steel groove
- rotor
- magnet
- electromotor
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Abstract
The utility model belongs to technical field of motors, refers specifically to a kind of rotor for electromotor, including circular body, and axis hole is provided with the middle part of the body, and circumference is provided with several magnet steel groove groups on body, if being radially arranged magnet steel groove described in dried layer on the body；The magnet steel in magnet steel groove group on same circumference is by embedded or/and binding set assembling banding；The purpose of this utility model is to provide a kind of rotor for electromotor for reducing manufacturing cost.
Description
Technical field
The utility model belongs to technical field of motors, refers specifically to rotor for electromotor.
Background technology
The brushless square-wave motor of current permanent magnetic DC generally produces electricity using the permanent magnet of tile type parallel magnetization structure
Magnetic field needed for machine, the motor of traditional this magnetic structure is not high equivalent to magnetic pole pole embrace, magnetic material utilization rate is reduced,
And cost limited most use parallel magnetization, make motor gas-gap magnetic flux distribution waveform not be in preferable trapezoidal wave.Permanent magnetism
The material that body is used is usually rare earth material neodymium iron boron, and its price is again expensive, and its stock utilization of tile type magnet steel is relatively low and magnetic
Pole pole embrace is relatively low, to produce enough magnetic field, it is necessary to rare earth material it is relatively many, accordingly increased during production in enormous quantities
Its manufacturing cost；Simultaneously in the long processing time of processing tile type magnet steel, high processing costs, it has not been convenient to process, and during processing
Waste material it is many.Using the structure motor Q axle inductances can be made much smaller than D axle inductances, be limited by current square-wave driver, Q axle inductances
Be conducive to improving motor performance during less than D axle inductances.
The content of the invention
In order to overcome defect of the prior art, the purpose of this utility model is to provide a kind of easy to process, material profit
It is high with rate, reduce the rotor for electromotor of manufacturing cost.
What the purpose of this utility model was realized in：
Rotor for electromotor, including circular body, are provided with axis hole in the middle part of the body, circumference is provided with some on body
Individual magnet steel groove group, if being radially arranged magnet steel groove described in dried layer on the body；The magnet steel in magnet steel groove group on same circumference
By embedded or/and binding set assembling banding.
It is convenient that banding is carried out to the magnet steel on same circumference by embedded or/and binding set after said structure, it is convenient
Magnet steel in magnet steel groove group is installed, installation effectiveness is improved；Motor Q axle inductances are much smaller than D axle inductances, are conducive to square wave to drive
Dynamic device control, is conducive to improving whole system performance.
The utility model is further arranged to：The Surface Mount is wholely set with body or detachably sets.
After using said structure, the structural strength for being easy to strengthen rotor is wholely set, and detachably sets and be easy to magnet steel
Installation and replacing.
The utility model is further arranged to：If a magnet steel groove group includes dried layer axially through magnet steel groove, each
The magnet steel that circumferentially abuts including at least two panels in magnet steel groove or be spaced and axially through, in the magnet steel groove embedded magnet steel be to
The parallel quadrangle in rare one group of side long；The perpendicular bisector of magnet steel is directed to the center of circle of body in each described magnet steel groove.
After using said structure, the permanent magnet in magnet steel groove is facilitated to produce radial direction magnetic by the design of quadrangle magnet steel groove
, and the waste material that quadrangle magnet steel is produced in production and processing is few, and it is high in machining efficiency.
The utility model is further arranged to：One magnet steel groove group is a magnetic pole, and 1-5 is provided with a magnet steel groove group
Layer magnet steel groove.
After said structure, increase the magnetic field intensity of radial magnetic field.
The utility model is further arranged to：One magnet steel groove group is provided with 2-10 magnet steel groove.
After using said structure, it is easy to rotor to produce uniform and stable radial magnetic field.
The utility model is further arranged to：The both sides of the magnet steel groove are provided with positioning tooth.
After said structure, positioning tooth is used for clamping magnet steel and magnet steel is positioned in magnet steel groove, so without other
Bonding agent, facilitates mounting magnetic steel.
The utility model is further arranged to：The two ends of the magnet steel groove are provided with magnet isolation tank, adjacent two on same circumference
The a width of 0.3-1.8mm of bridge between individual magnet isolation tank.
After said structure, leakage field is reduced, keep magnetic field saturation.
The utility model is further arranged to：The magnet steel groove group circumference is provided with 1-15 pairs.
After said structure, increase the magnetic field intensity of radial magnetic field.
The utility model is further arranged to：Several location holes, the location hole are evenly distributed on described body
It is opened between axis hole and magnet steel groove group.
After said structure, the setting of location hole facilitates the positioning of rotor for electromotor silicon steel sheet to process.
In sum, the utility model not only reduces the production cost of motor, and makes motor gas-gap magnetic flux distribution
Waveform is in preferable trapezoidal wave.Using said structure motor Q axle inductances can be made much smaller than D axle inductances, facilitate square-wave driver control
System, is conducive to improving whole system performance, improves the robustness of motor, improves electric efficiency, increases motor output torque
Brief description of the drawings
Fig. 1 is that the utility model magnet steel inline layer has spaced structural representation with layer；
Fig. 2 is the utility model magnet steel inline layer and layer without spaced structural representation；
Fig. 3 is the structural representation that the utility model magnet steel Surface Mount outer layer banding is set；
Fig. 4 is the embedded structural representation set with Surface Mount combination of the utility model magnet steel.
Label implication in figure：
1- bodies；2- axis holes；3- magnet steel groove groups；31- magnet steel grooves；4- positioning tooths；51- location holes one；52- location holes two；
6- compensating grooves；7- binding sets；8- magnet steel；9- magnet isolation tanks.
Specific embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings：
Referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, rotor for electromotor, including circular body 1, the middle part of the body 1 sets
Axis hole 2 is equipped with, the circumference of body 1 is provided with several magnet steel groove groups 3, if being radially arranged magnet steel groove described in dried layer on the body 1
31；The magnet steel 8 in magnet steel groove group 3 on same circumference assembles bandings by embedded or/and binding set 7, it is convenient by it is embedded or/
Banding is carried out with the magnet steel 8 on binding 7 pairs of same circumference of set, it is convenient that magnet steel 8 in magnet steel groove group 3 is installed, improve peace
Dress efficiency.
In the present embodiment, the circumference outermost layer magnet steel 8 in magnet steel groove group 3 on same circumference can be by bundling 7 bandings of set
(such as Fig. 3, Fig. 4), is also designed to same body 1 for monoblock type insert structure (as shown in Figure 1, Figure 2).
It is further arranged to：Described is that for monoblock type insert structure, (Fig. 1 magnet steel is embedded between having between layers same body 1
Every) conveniently the magnet steel 8 in each magnet steel groove 31 is carried out to be embedded in installation, improve installation effectiveness.
It is further arranged to：Described is circumferentially arrangement and radially arrangement in single magnet steel groove 31 on the circumference of same body 1
Magnet steel 8 and body 1 are that monoblock type insert structure (Fig. 2 magnet steel is embedded between layers without interval) can make each layer magnet steel 8 thinner, whole
Closer to preferable magnet steel (concentric circles tile radial magnetizing) after individual magnetic pole installation, magnetic material utilization rate is high, and motor gas-gap magnetic field is close
Degree is more preferable.
It is further arranged to：Circumferentially arrangement and the radially magnet steel 8 of arrangement in single magnet steel groove 31 on the circumference of the body 1
(Fig. 3 magnet steel Surface Mount outer layers banding), enters for convenience of by bundling the magnet steel 8 in 7 pairs of circumference upper magnetic steel groove groups 3 of same body 1 of set
Row banding, it is convenient that magnet steel in magnet steel groove 31 is installed, to improve installation effectiveness, it is also possible to by each magnet steel groove 31 radially
After being put into each magnet steel groove 31 with some magnet steel 8 on circumference, then 7 bandings of set are bundled by outermost layer, leakage field can be reduced.
It is further arranged to：Magnet steel 8 has embedded and Surface Mount to combine assembling mode in the circumference upper magnetic steel groove 31 of the body 1
(Fig. 4 magnet steel is embedded and Surface Mount is to conjunction), the hoop of binding set 7 is located at the outside of magnet steel 8 of outer layer；If being evenly distributed on the body 1
Dry magnet steel groove group 3, the spaced radial of magnet steel groove group 3 is provided with the 1-5 layers of magnet steel groove 31, and it is uniform that the structure is easy to rotor to produce
The radial magnetic field of stabilization, and motor Q axle inductances can be reduced, facilitate square-wave driver control.
It is further arranged to：The Surface Mount 7 is wholely set with body 1 or detachably sets, and is wholely set and is easy to enhancing to turn
The structural strength of son, and the installation and replacing being easy to magnet steel are detachably set.
It is further arranged to：If a magnet steel groove group 3 includes dried layer axially through magnet steel groove 31, each magnet steel groove 31
It is interior including at least two panels circumferentially abut or be spaced magnet steel 8 and axially through embedded magnet steel 8 is at least in the magnet steel groove 31
There is the parallel quadrangle in one group of side long；In the present embodiment, one group of parallel quadrangle in side long is upper following parallel, it may be preferred to be
It is square；The perpendicular bisector of each magnet steel 8 is directed to the center of circle of body 1 in the magnet steel groove 31, and magnetic is facilitated by the design of magnet steel groove 31
Permanent magnet in steel tank 31 produces radial magnetic field, and the waste material that quadrangle magnet steel is produced in production and processing is few, and processing efficiency
It is high；During actually producing, the processing cost of quadrangle magnet steel is 1/19 times of tile type magnet steel, such as 1 square centimeter
Working (finishing) area, the processing of tile type magnet steel is a piece of to need 0.95 yuan, and the processing cost of quadrangle magnet steel only needs 0.05 yuan, so big
Production cost is reduced greatly, while also improving production efficiency, and is made with the design that quadrangle magnet steel multi-disc is combined into a magnetic pole
Closer to radial magnetizing, motor gas-gap magnetic flux distribution waveform is in preferable trapezoidal wave to rotor magnetic circuit, improves the Shandong of motor
Rod, improves electric efficiency, increases motor output torque, motor rotation stabilization.
It is further arranged to：The same magnet steel groove group 3 provided circumferentially about is provided with 1-15 pairs, a pair as 2 magnetic
Pole (a N poles, a S poles).
It is further arranged to：One magnet steel groove group 3 is a magnetic pole, and 1-5 layers of magnet steel groove is provided with a magnet steel groove group 3
31, in the present embodiment, magnet steel groove 31 can be radially sequentially overlapped without interval setting, it is also possible to which spaced radial is set；So increase
The magnetic field intensity of radial magnetic field.
It is further arranged to：One magnet steel groove group 3 is provided with 2-10 magnet steel groove 31, is easy to rotor to produce uniform and stable
Radial magnetic field.
It is further arranged to：The both sides of the magnet steel groove 31 are provided with positioning tooth 4, and positioning tooth 4 is used for clamping magnet steel and makes
Magnet steel is positioned in magnet steel groove 31, so without other bonding agents, facilitates mounting magnetic steel.
It is further arranged to：The two ends of the magnet steel groove 31 are provided with magnet isolation tank 9, two neighboring magnet isolation tank on same circumference
Bridge d wide is 0.3-1.8mm between 9, makes magnetic field saturation at this, reduces leakage field.
It is further arranged to：Several location holes are evenly distributed on described body 1, the location hole is opened in axis hole
Between 2 and magnet steel groove group 3, the location hole includes location hole one and location hole two, location hole one and the interval setting of location hole two,
Location hole one and the quantity of location hole two are 4 in the present embodiment, and the setting of location hole one facilitates determining for rotor for electromotor silicon steel sheet
Position processing and installation, the setting of location hole two facilitate fixed insulation plate.
It is further arranged to：Several are evenly distributed on described body 1 axially through the compensating groove 6 for setting, it is described
Compensating groove 6 is arranged between axis hole 2 and location hole 5.
It is further arranged to：The compensating groove 6 is sector, so saves material, mitigates rotor weight, shortens motor response
Time.Adjust rotor dynamic balancing when, be easy to the dynamic balancing of regulation motor, by compensating groove place balance clay come
Adjust the balance of rotor, then at the two ends of rotor by location hole 2 52 and expansive rivet come fixed insulation plate, it is to avoid it is flat
Weighing apparatus clay and magnet steel depart from from two ends of rotor, realize dynamically balanced rotor, noise when can reduce motor rotation and prevent
Shake during motor rotation.
In sum, the present embodiment not only reduces the production cost of motor, improves the motor speed of response, and make motor gas
Gap magnetic flux distribution waveform is in preferable trapezoidal wave.Said structure can reduce motor Q axle inductances, be conducive to square-wave driver control
System, is conducive to improving whole system performance, improves the robustness of motor, improves electric efficiency, increases motor output torque.
Above-described embodiment is only preferred embodiment of the present utility model, and protection model of the present utility model is not limited according to this
Enclose, therefore：All equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by protection of the present utility model
Within the scope of.
Claims (9)
1. rotor for electromotor, including circular body, axis hole is provided with the middle part of the body, it is characterised in that：Circle on body
Several magnet steel groove groups are provided with week, if being radially arranged the magnet steel groove group of dried layer circumference setting on the body；Same circle
The magnet steel in magnet steel groove group on week is by embedded or/and binding set assembling banding.
2. rotor for electromotor according to claim 1, it is characterised in that：The binding set is wholely set or removable with body
Unload setting.
3. rotor for electromotor according to claim 2, it is characterised in that：If a magnet steel groove group includes dried layer axial direction
Insertion magnet steel groove, the magnet steel for circumferentially abutting including at least two panels in each magnet steel groove or being spaced and axially through the magnet steel
Embedded magnet steel is the parallel quadrangle at least one group of side long in groove；The perpendicular bisector of magnet steel is directed to this in each described magnet steel groove
The center of circle of body.
4. the rotor for electromotor according to claim 1 or 2 or 3, it is characterised in that：One magnet steel groove group is a magnetic pole,
1-5 layers of magnet steel groove is provided with one magnet steel groove group.
5. rotor for electromotor according to claim 4, it is characterised in that：2-10 magnetic is set in each individual layer magnet steel groove
Steel.
6. the rotor for electromotor according to claim 1 or 2 or 3 or 5, it is characterised in that：The both sides of the magnet steel groove are set
There is positioning tooth.
7. rotor for electromotor according to claim 6, it is characterised in that：The two ends of the magnet steel groove are provided with magnet isolation tank,
The a width of 0.3-1.8mm of bridge between two neighboring magnet isolation tank on same circumference.
8. the rotor for electromotor according to claim 1 or 2 or 3 or 5 or 7, it is characterised in that：The magnet steel groove group circumference sets
There is 1-15 pairs.
9. rotor for electromotor according to claim 8, it is characterised in that：Several are evenly distributed on described body to determine
Position hole, the location hole is opened between axis hole and magnet steel groove group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621084336.1U CN206226148U (en) | 2016-09-27 | 2016-09-27 | Rotor for electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621084336.1U CN206226148U (en) | 2016-09-27 | 2016-09-27 | Rotor for electromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206226148U true CN206226148U (en) | 2017-06-06 |
Family
ID=58782273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621084336.1U Expired - Fee Related CN206226148U (en) | 2016-09-27 | 2016-09-27 | Rotor for electromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206226148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565714A (en) * | 2017-10-10 | 2018-01-09 | 湘电莱特电气有限公司 | A kind of high salient pole than permanent magnet machine rotor and motor |
-
2016
- 2016-09-27 CN CN201621084336.1U patent/CN206226148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565714A (en) * | 2017-10-10 | 2018-01-09 | 湘电莱特电气有限公司 | A kind of high salient pole than permanent magnet machine rotor and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20190927 |