CN207124503U - Rotor core and rotor - Google Patents
Rotor core and rotor Download PDFInfo
- Publication number
- CN207124503U CN207124503U CN201721105780.1U CN201721105780U CN207124503U CN 207124503 U CN207124503 U CN 207124503U CN 201721105780 U CN201721105780 U CN 201721105780U CN 207124503 U CN207124503 U CN 207124503U
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- rotor core
- arc section
- magnet steel
- rotor
- slit
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Abstract
The utility model discloses a kind of rotor core and rotor, magnet steel groove is offered on the rotor core, the magnet steel groove is included along the circumferentially spaced multiple of the rotor core, the both sides circumferential along the rotor core of the magnet steel groove are equipped with slit, outer peripheral face of the slit adjacent to the rotor core.According to the rotor core of the utility model embodiment, motor low spatial order low frequency radial load can be effectively reduced.
Description
Technical field
The utility model designs energy transition equipment technical field, more particularly to a kind of rotor core and rotor.
Background technology
The rotor of existing rotary compressor for refrigerant typically uses cantilever design, only unilateral bearing, therefore its air gap
Need by rotor installation process, being adjusted by frocks such as clearance gauges, this crosses range request stator inner headed face and rotor
Periphery must be that large-scale isocentric circular arc could position well to isocentric circular arc, and otherwise point-to-area precision will be very
Difference.Therefore existing rotor core external arc there must be the larger isocentric circular arc across angle, and the presence of the circular arc causes rotor to optimize
Difficulty increase, it is difficult to the low spatial order low frequency component in reducing the radial load of motor, vibration is big.
A solution is that rotor outer circle arc is designed into eccentric structure at present, and this will cause rotor outer circle face and stator
Inner headed face is to put the corresponding relation with face, the bad control of air gap precision, but the radial load of its low spatial order low frequency component is smaller,
Another solution is that rotor is formed using three sections of arc structures of isocentric circular arc and eccentric arc, and itself and stator inner circle are
Aspectant counter structure, it can be very good to control air gap precision, but the radial load of low spatial order low frequency component is larger, because
It is more difficult thing that this, which should control air gap precision also to effectively reduce the low spatial order low frequency component of radial load well,
Feelings.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
It is to propose a kind of rotor core with a new purpose, can effectively reduces motor low spatial order low frequency radial load.
According to the rotor core of the utility model embodiment, magnet steel groove, the magnet steel groove are offered on the rotor core
Including equal along the circumferentially spaced multiple of the rotor core, the both sides circumferential along the rotor core of the magnet steel groove
Provided with slit, outer peripheral face of the slit adjacent to the rotor core.
According to the rotor core of the utility model embodiment, motor low spatial order low frequency radial load can be effectively reduced.
In addition, according to the rotor core of the utility model above-described embodiment, there can also be technical characteristic additional as follows：
In one embodiment of the present utility model, the slit of the magnet steel groove both sides is in away from the rotor core
Opened on the direction of the heart.
In one embodiment of the present utility model, the outer peripheral face of the rotor core has towards the magnet steel geosynclinal concave
Fall into, the inner of the slit is recessed in the diametrically opposite of the rotor core with described, and the outer end of the slit with it is described
Depression is not in the radially relative of the rotor core.
In one embodiment of the present utility model, the outer peripheral face of the rotor core is fallen into towards the magnet steel geosynclinal concave.
In one embodiment of the present utility model, the outer peripheral face of the rotor core includes the week along the rotor core
To the multiple face groups being sequentially connected, the face group includes：First arc section；Second arc section, second arc section with it is described
One end of first arc section is connected；Three-arc section, the three-arc section are connected with the other end of first arc section；The
One straightway, the first straight line section are connected with the second arc section；Second straight line section, the second straight line Duan Yu three-arc sections
It is connected, wherein, the first straight line section in adjacent two face groups is connected with second straight line section and forms the depression.
In one embodiment of the present utility model, the span, theta 2 of first arc section, single magnetic pole across pin be θ 1,
θ1/2-1≤θ2≤θ1/2+1。
In one embodiment of the present utility model, first arc section and the rotor core are concentric, and described second
Arc section and the first arc section decentraction and tangent, the three-arc section and the first arc section decentraction and phase
Cut.
In one embodiment of the present utility model, the outer end of the slit turns with first arc section along described
Diametrically, the inner of the slit and second arc section or a three-arc section are along institute for sub- iron core
State rotor core diametrically.
In one embodiment of the present utility model, the magnet steel groove is the strip radially extended along the rotor core
Shape or rectangle.
The utility model also proposed a kind of rotor, including：Rotor core, the rotor core are according to foregoing rotor
Iron core, the magnet steel groove is interior to be filled with permanent-magnet material.
In one embodiment of the present utility model, tangential parallel magnetization in the magnet steel groove.
Brief description of the drawings
Fig. 1 is the schematic diagram of the rotor core of the utility model one embodiment.
Fig. 2 is the scheme of installation of the rotor core of the utility model one embodiment.
Reference：Rotor core 1, magnet steel groove 101, slit 105, depression 106, the first arc section 1071, the second circular arc
Section 1072, three-arc section 1073, first straight line section 1074, second straight line section 1075, axis hole 108, through hole 109.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Such as Fig. 1, according to the rotor core 1 of the utility model embodiment, the rotor core can apply to motor or other
Equipment, magnet steel groove 101 is offered on rotor core 1, and magnet steel groove 101 includes circumference (the surrounding rotor iron core 1 along rotor core 1
Direction) it is spaced apart multiple.
Multiple magnet steel grooves 101 can be set to the circumferentially uniform intervals arrangement (around the direction of the rotor core 1), also may be used
By be arranged to around by axis (axis of rotor core 1) plane be arranged symmetrically in the form of.
In the centrally disposed setting axis hole of rotor core 1, in the inner of neighbouring magnet steel groove 101 (close to the center of rotor core 1
One end of line) position can also set through hole.
In addition, rotor core 1 of the present utility model can also have the technical scheme of following examples, these technical schemes
It can be separately provided, can also be in the case where not conflicting by one or more solution pools.
Preferably, magnet steel groove 101 is the rectangle radially extended along rotor core 1, and certain magnet steel groove 101 can also be bar
Shape or other shapes.
Advantageously, magnet steel groove 101 is the rectangle radially extended along rotor core 1.
It should be noted that the above-mentioned shape to magnet steel groove 101 is described, but it is not intended that the utility model is protected
Shield takes the limitation of scope.
Such as Fig. 1, the both sides circumferential along rotor core 1 of magnet steel groove 101 are equipped with slit 105.
By setting slit, the minimum order in space and the harmonic of time 2 of motor radial load can be substantially reduced, is reduced
The low-frequency vibration of motor.
Further, the slit 105 of the both sides of magnet steel groove 101 opens on the direction at the center away from rotor core 1.
Preferably, the outer peripheral face of rotor core 1 has towards the depression of magnet steel groove 101 106, the inner and the depression of slit 105
106 in the diametrically opposite of rotor core 1, and the outer end of slit 105 and depression 106 be in the radially relative of rotor core 1,
That is, the outer end of slit 105 extends to the outside of depression 106 (with the diametrically not corresponding position of depression 106).
In addition, the outer peripheral face of rotor core 1 towards magnet steel groove 101 depression 106.
Further, as Fig. 1, the outer peripheral face of rotor core 1 include the multiple faces being sequentially connected along the circumference of rotor core 1
Group, face group include：First arc section 1071, the second arc section 1072, three-arc section 1073, first straight line section 1074 and second
Straightway 1075, the second arc section 1072 are connected with one end of the first arc section 1071；The circular arc of three-arc section 1073 and first
The other end of section 1071 is connected；First straight line section 1074 is connected with the second arc section 1072；Second straight line section 1075 and the 3rd is justified
Segmental arc 1073 is connected, wherein, the first straight line section 1074 in adjacent two face groups is connected and formed with second straight line section 1075
Depression 106.
Further, the first arc section 1071 and rotor core 1 are concentric, the second arc section 1072 and the first arc section 1071
Decentraction is simultaneously tangent, and three-arc section 1073 and the decentraction of the first arc section 1071 are simultaneously tangent.
In addition, first straight line section 1074 and second straight line section 1075 are respectively positioned on the outside of magnet steel groove 101, and first straight line section
1074 and second straight line section 1075 with a face of magnet steel groove 101.
Further, such as Fig. 1, the span, theta 2 of the first arc section 1071, single magnetic pole across pin be θ 1, θ 1/2-1≤θ 2≤
θ1/2+1.In other words, the difference between across the pin θ 1 of the span, theta 2 of the first arc section 1071 and single magnetic pole half is -1
To in the range of 1.
The minimum order in space and the harmonic of time 2 of motor radial load are substantially reduced, reduces the low-frequency vibration of motor, and
It can be good at controlling the concentricity between rotor.
In addition, the outer end of slit 105 and first arc section along the rotor core diametrically, it is described narrow
The inner of seam and second arc section or a three-arc section along the rotor core diametrically.
Wherein, the second straight line Duan Jun of the first straight line section of face group and another face group in two adjacent face groups
Corresponding with same magnet steel groove 101, so the slit 105 of this both sides of magnet steel groove 101 is then corresponding with the two face groups respectively, tool
Body, inner and the second arc section of a face group of a slit 105 is diametrically and outer end is extended and this face group
Second arc section to the center of rotor core scope and with the first arc section of this face group diametrically；Another slit
105 the inner and the three-arc section of another side group are diametrically and outer end is extended and arrived with the three-arc section of this face group
The scope at the center of rotor core and with the first arc section of this face group diametrically.
In addition, magnet steel groove 101 can also be the shapes such as rectangle, strip, circular arc, for example, magnet steel groove is along rotor iron
The strip radially extended of core.
Rotor core 1 can be arranged to the multistage laminated vertically.Further adjacent two sections of rotor cores laminated exist
Circumferencial direction differs a pair of polar angle degree.
In addition, with reference to Fig. 1 and Fig. 2, also utility model additionally provides a kind of rotor, including：Rotor core 1, rotor core 1
For foregoing rotor core 1, permanent-magnet material is filled with magnet steel groove 101.
According to the rotor core 1 of the utility model embodiment, by setting slit, motor radial load can be substantially reduced
The minimum order in space and the harmonic of time 2, reduce the low-frequency vibration of motor.
The stronger rubidium iron boron permanent magnetism of coercivity can be placed in one embodiment of the present utility model, in magnet steel groove 101
Material, the relatively low ferrite permanent-magnet materials of coercivity can also be placed.
Preferably, tangential parallel magnetization in magnet steel groove 101.
Specifically, when magnet steel groove 101 is rectangle or elongate in shape, radial magnetizing can be used, and in magnet steel groove 101
For circular arc when, tangential parallel magnetization can be used.
In addition, in motor, there is gap 301 between stator and rotor.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered
Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (11)
1. a kind of rotor core, it is characterised in that magnet steel groove is offered on the rotor core, the magnet steel groove is included along described
Rotor core it is circumferentially spaced multiple, the both sides circumferential along the rotor core of the magnet steel groove are equipped with slit,
Outer peripheral face of the slit adjacent to the rotor core.
2. rotor core according to claim 1, it is characterised in that the slit of the magnet steel groove both sides turns away from described
Opened on the direction at the center of sub- iron core.
3. rotor core according to claim 2, it is characterised in that the outer peripheral face of the rotor core has described in
Magnet steel geosynclinal concave is fallen into, and the inner and depression of the slit is in the diametrically opposite of the rotor core, and the slit is outer
End is with the depression in the radially not relative of the rotor core.
4. according to the rotor core any one of claim 1-3, it is characterised in that the outer peripheral face court of the rotor core
Fallen into the magnet steel geosynclinal concave.
5. rotor core according to claim 4, it is characterised in that the outer peripheral face of the rotor core is included along described turn
Multiple face groups that the circumference of sub- iron core is sequentially connected, the face group include：
First arc section；
Second arc section, second arc section are connected with one end of first arc section；
Three-arc section, the three-arc section are connected with the other end of first arc section；
First straight line section, the first straight line section are connected with the second arc section；
Second straight line section, the second straight line Duan Yu three-arc sections are connected,
Wherein, the first straight line section in the adjacent two face groups is connected with second straight line section and forms the depression.
6. rotor core according to claim 5, it is characterised in that the span, theta 2 of first arc section, single magnetic pole
Across pin be θ 1, θ 2≤θ of 1/2-1≤θ 1/2+1.
7. rotor core according to claim 5, it is characterised in that first arc section and the rotor core are same
The heart, second arc section and the first arc section decentraction and tangent, the three-arc section and first arc section
Decentraction is simultaneously tangent.
8. rotor core according to claim 5, it is characterised in that the outer end of the slit and first circular arc
Section along the rotor core diametrically, justify by the inner and second arc section or one the described 3rd of the slit
Segmental arc along the rotor core diametrically.
9. rotor core according to claim 1, it is characterised in that the magnet steel groove is the radial direction along the rotor core
The strip or rectangle of extension.
A kind of 10. rotor, it is characterised in that including：
Rotor core, the rotor core are rotor core according to any one of claim 1-9, in the magnet steel groove
Filled with permanent-magnet material.
11. rotor according to claim 10, it is characterised in that tangential parallel magnetization in the magnet steel groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721105780.1U CN207124503U (en) | 2017-08-30 | 2017-08-30 | Rotor core and rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721105780.1U CN207124503U (en) | 2017-08-30 | 2017-08-30 | Rotor core and rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124503U true CN207124503U (en) | 2018-03-20 |
Family
ID=61611476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721105780.1U Active CN207124503U (en) | 2017-08-30 | 2017-08-30 | Rotor core and rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394924A (en) * | 2017-08-30 | 2017-11-24 | 广东威灵电机制造有限公司 | Rotor core and rotor |
| CN108599418A (en) * | 2018-05-16 | 2018-09-28 | 华中科技大学 | A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor |
-
2017
- 2017-08-30 CN CN201721105780.1U patent/CN207124503U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394924A (en) * | 2017-08-30 | 2017-11-24 | 广东威灵电机制造有限公司 | Rotor core and rotor |
| CN108599418A (en) * | 2018-05-16 | 2018-09-28 | 华中科技大学 | A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor |
| CN108599418B (en) * | 2018-05-16 | 2020-05-19 | 华中科技大学 | Rotor core of magnetic circuit series type hybrid permanent magnet controllable flux motor and motor |
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