CN109167449A - Motor rotor punching sheet and magneto - Google Patents
Motor rotor punching sheet and magneto Download PDFInfo
- Publication number
- CN109167449A CN109167449A CN201811274972.4A CN201811274972A CN109167449A CN 109167449 A CN109167449 A CN 109167449A CN 201811274972 A CN201811274972 A CN 201811274972A CN 109167449 A CN109167449 A CN 109167449A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- slot
- sideline
- motor rotor
- rotor punching
- 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.)
- Withdrawn
Links
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
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The present invention relates to a kind of motor rotor punching sheet and magnetoes, belong to magneto technical field.Multiple groups magnetic slot group is arranged symmetrically along rotating in a circumferential direction for punching ontology, every group of magnetic slot includes the first magnetic slot and two the second magnetic slots, two the second magnetic slots are distributed in V-shape and the center of punching ontology is directed toward at the tip of V-shape, first magnetic slot is located at the open end of the V-shape of two the second magnetic slots, the both ends of first magnetic slot are symmetrically opened up there are two the first magnetic screen air groove, the second magnetic screen air groove is offered between two the second magnetic slots, the inner sidewall of one end close to the first magnetic slot of the second magnetic slot is provided with the magnetic conduction protrusion for the direction of travel that at least one is used to guide the magnetic line of force.The motor rotor punching sheet can greatly improve the anti-irreversible demagnetization ability of magneto in the case where output peak torque varies less.Using the magneto of above-mentioned motor rotor punching sheet, manufacturing cost is reduced.
Description
Technical field
The present invention relates to magneto technical fields, in particular to a kind of motor rotor punching sheet and magneto.
Background technique
Magneto is widely used in the every field of industrial production and life.With the development of new-energy automobile industry,
Magneto is even more the preferred driving part for becoming pure electric vehicle new-energy automobile.And it restricts new-energy automobile and replaces fuel vehicle most
Fundamental factor is cost, and therefore, the cost for how reducing each main component of new-energy automobile becomes one of the hot spot of this field.
Core driving part of the magneto as new-energy automobile, the reduction of cost are also the crucial research of this field
One of technical point.And permanent magnet then becomes the key factor for determining magneto cost, not in particular with rare earth price
Disconnected to go up, permanent magnet dosage increasingly becomes the deciding factor of new-energy automobile magneto cost.Therefore, how to guarantee
In the case where motor reliability, the usage amount of permanent magnet is reduced as far as possible, and the research of the technical point seems in electric motor of automobile field
It is most important.
Under new-energy automobile magneto field, the output performances index such as same torque/power, to guarantee magneto
Reliability, the most critical factor for influencing permanent magnet dosage is the anti-irreversible demagnetization ability of magneto.
Existing measure generally increases magnet thickness, increases the magnet steel trade mark, makes magnet steel largely far from armature etc..Nothing
By being to increase magnet thickness or the magnet steel trade mark, it can all increase motor cost by a relatively large margin；And make magnet steel far from armature, separate gas
The way of gap can be such that the reduction of magnet steel utilization rate or output torque is substantially reduced again, in a disguised form increase motor cost.
Summary of the invention
It, can be in output peak torque it is an object of the invention in view of the above-mentioned problems, provide a kind of motor rotor punching sheet
In the case where varying less, the anti-irreversible demagnetization ability of magneto is greatly improved, the above problem is improved.
It is another object of the present invention to provide a kind of magnetoes, reduce manufacturing cost.
The present invention is implemented as follows:
The embodiment provides a kind of motor rotor punching sheets, are applied to New-energy electric vehicle, including punching sheet
Body, the circumferential direction of the punching ontology offer multiple groups magnetic slot group, circumferential direction of the multiple groups magnetic slot group along the punching ontology
Rotational symmetry is arranged, and magnetic slot described in every group includes the first magnetic slot and two the second magnetic slots, described two second magnetic slots
The center of the punching ontology is directed toward in the tip of V-shape distribution and V-shape, first magnetic slot is located at described two second
The open end of the V-shape of magnetic slot, the both ends of the length direction of first magnetic slot are symmetrically opened up there are two the first magnetic screen
Air groove, offers the second magnetic screen air groove between described two second magnetic slots, second magnetic slot close to described
The inner sidewall of one end of the first magnetic slot is provided at least one magnetic conduction protrusion, and the magnetic conduction protrusion is used to guide the row of the magnetic line of force
Walk direction.
In optional embodiment of the present invention, two limits for limiting magnet steel position are provided in second magnetic slot
Position protrusion, second magnetic slot is divided into the first slot section, the second slot section and third slot section by described two retention beads, described
First slot section is relative to the third slot section close to first magnetic slot, and the second slot section is for accommodating the magnet steel, institute
It states the first slot section to be obliquely installed relative to the second slot section, the magnetic conduction protrusion is located in the first slot section, the magnetic conduction
Protrusion is located at one end far from the second slot section of the first slot section, width of the magnetic conduction protrusion along the first slot section
Direction protrusion.
In optional embodiment of the present invention, the protrusion height of the magnetic conduction protrusion is greater than 0.5mm.
In optional embodiment of the present invention, the first slot section includes the first connection sideline, the second connection sideline and the
Three connection sidelines, first connection sideline connect two that sideline is relatively arranged on second connection sideline with the third
End, first connection sideline connect sideline with the third and connect respectively with the second slot section, second connection sideline
Both ends connect respectively with described first sideline and the third connection sideline connection, it is described first connection sideline relative to described
Third connects sideline close to first magnetic slot, one of them described magnetic conduction protrusion is located at first connection sideline, described
Magnetic conduction protrusion is located at the one end far from the second slot section in first connection sideline.
In optional embodiment of the present invention, there are two the magnetic conduction protrusion settings, one of them magnetic conduction protrusion position
In first connection sideline, another described magnetic conduction protrusion is located at third connection sideline.
In optional embodiment of the present invention, first magnetic slot is tangentially extending along the punching ontology, and described
The center line of one magnetic slot is radially extended along the punching ontology, the symmetrical center line of described two second magnetic slots with it is described
The center line of first magnetic slot is overlapped.
In optional embodiment of the present invention, the second magnetic screen air groove is located at pair of described two second magnetic slots
Claim on center line, the second magnetic screen air groove forms two magnetic screens every magnetic between described two second magnetic slots respectively
Bridge.
In optional embodiment of the present invention, at least one is offered between magnetic slot described in adjacent two groups and removes repeated hole.
In optional embodiment of the present invention, repeated hole is removed there are two settings between magnetic slot described in adjacent two groups, it is described
Two are gone repeated hole to be arranged along the spaced radial of the punching ontology.
The embodiments of the present invention also provide a kind of magnetoes, including above-mentioned motor rotor punching sheet.
Compared with prior art, the invention has the benefit that
The motor rotor punching sheet can greatly improve magneto in the case where output peak torque varies less
Anti- irreversible demagnetization ability.
Using the magneto of above-mentioned motor rotor punching sheet, manufacturing cost is reduced.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram for the motor rotor punching sheet that first embodiment of the invention provides；
Fig. 2 is the structural schematic diagram of the magnetic slot group of Fig. 1；
Fig. 3 is the installation diagram of magnet steel and punching ontology；
Fig. 4 is the structural schematic diagram of the magnetic slot group for the motor rotor punching sheet that second embodiment of the invention provides.
Icon: 100- motor rotor punching sheet；1- punching ontology；The first magnetic slot of 2-；The second magnetic slot of 3-；31- limit convex
It rises；32- the first slot section；The connection of 321- first sideline；The connection of 322- second sideline；323- third connects sideline；The second slot of 33-
Section；34- third slot section；4- magnet steel；51- the first magnetic screen air groove；52- bridge；61- the second magnetic screen air groove；62- magnetic cup
Cover magnetic bridge；7- magnetic conduction protrusion；8- removes repeated hole；The first hole 81-；The second hole 82-.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, only
It is that for the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " the
Two " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
First embodiment
Fig. 1 is please referred to, the present embodiment provides a kind of motor rotor punching sheets 100, are applied to New-energy electric vehicle, including punching
Piece ontology 1.
In the present embodiment, the circumferential direction of punching ontology 1 is evenly distributed with multiple groups magnetic slot group, and every group of magnetic slot group includes the
One magnetic slot 2 and two the second magnetic slots 3, two the second magnetic slots 3 symmetrically divide along the center line of the first magnetic slot 2 in V-shape
Cloth, the tip of V-shape is towards the center of punching ontology 1, and the first magnetic slot 2 is located at the open end of V-shape, the first magnetic slot 2
The both ends of length direction are symmetrically opened up there are two the first magnetic screen air groove 51, limit the leakage field magnetic of magnet steel 4 in the first magnetic slot 2
Line of force path width；The second magnetic screen air groove 61, the second magnetic slot 3 and the second magnetic are offered between two the second magnetic slots 3
Magnetic screen magnetic bridge 62 is formed between shroud air slot 61, the leakage field magnetic force of magnet steel 4 in effectively two the second magnetic slots 3 of limitation
On the basis of thread path width, the intensity of punching ontology 1 is improved；One end close to the first magnetic slot 2 of second magnetic slot 3
Inner sidewall is provided at least one magnetic conduction protrusion 7, and magnetic conduction protrusion 7 is used for far from the magnet steel 4 in the second magnetic slot 3 by stator side
The reversed demagnetized field magnetic line of force that armature from short circuit electric current generates concentrates on the magnetic conduction protrusion 7, largely reduces 4 end of magnet steel
Degree of saturation, and then greatly improve 4 local demagnetization situation of magnet steel.The motor rotor punching sheet 100 can turn in output peak value
In the case that square varies less, the anti-irreversible demagnetization ability of magneto is greatly improved.
The specific structure to all parts of the motor rotor punching sheet 100 and mutual positional relationship carry out detailed below
It describes in detail bright.
Rotor punching includes punching ontology 1, as shown in Figure 1, punching ontology 1 is circular configuration, the center of punching ontology 1 is opened
Equipped with axis hole, convenient for being connect with machine shaft；The circumferential direction of punching ontology 1 offers magnetic slot group of the multiple groups for mounting magnetic steel 4,
Multiple groups magnetic slot group is arranged symmetrically along rotating in a circumferential direction for punching ontology 1.In the present embodiment, every group of magnetic slot group includes the first magnetic
Steel tank 2 and two the second magnetic slots 3, the second radially extending along punching ontology 1 of magnetic slot 3, two the second magnetic slots 3 are in V word
Type distribution, and the center of punching ontology 1 is directed toward at the tip of V-shape, and the first magnetic slot 2 is located at the V word of two the second magnetic slots 3
The open end of type.
First magnetic slot 2 is along the tangentially extending of punching ontology 1, the radial direction of the center line of the first magnetic slot 2 along punching ontology 1
Extend, the symmetrical center line of two the second magnetic slots 3 is overlapped with the center line of the first magnetic slot 2, so that the first magnetic slot 2 and two
A second magnetic slot 3 forms triangular structure, is easy to implement the path planning of the magnetic line of force.
As shown in Figure 1, symmetrically opening up at the both ends of the length direction of the first magnetic slot 2, there are two the first magnetic screen air grooves
51.The setting of first magnetic screen air groove 51, so that the walking path of the rotor leakage field magnetic line of force narrows, the leakage field magnetic line of force is through
Bridge 52 between one magnetic screen air groove 51 and the first magnetic slot 2 passes through, and reduces the leakage field magnetic line of force, improves magnetic field utilization rate.
In the present embodiment, the second magnetic screen air groove 61, the second magnetic slot 3 are offered between two the second magnetic slots 3
The inner sidewall of one end close to the first magnetic slot 2 be provided at least one magnetic conduction protrusion 7.It demagnetizes under operating condition in electric motor short circuit,
Magnetic conduction protrusion 7 is for guiding the direction of travel of the stator side armature field magnetic line of force, changing and planning what armature from short circuit electric current generated
The trend of the stator side armature field magnetic line of force largely reduces the saturation for 4 end of magnet steel being located in the second magnetic slot 3
Degree, and then greatly improve 4 local demagnetization situation of magnet steel.
As shown in Fig. 2, the second magnetic screen air groove 61 is located in the symmetrical center line of two the second magnetic slots 3, the second magnetic
The spacing of 61 to two the second magnetic slots 3 of shroud air slot is equal；Shape between second magnetic screen air groove 61 and the second magnetic slot 3
At magnetic screen magnetic bridge 62.Second magnetic screen air groove 61 forms the magnetic of two dispersions between two the second magnetic slots 3 respectively
Magnetic bridge 62 is shielded, under the premise of limiting leakage path, the magnetic screen magnetic bridge 62 of two dispersions can be effectively improved rotor
The intensity of punching ontology 1.
It is provided with two retention beads 31 for limiting 4 position of magnet steel in second magnetic slot 3, prevents magnet steel 4 along second
The length direction of magnetic slot 3 is mobile.As shown in Figures 2 and 3, the second magnetic slot 3 is divided into the first slot by two retention beads 31
The 32, second slot section 33 of section and third slot section 34, the first slot section 32 is relative to third slot section 34 close to the first magnetic slot 2, the second slot
Section 33 is for accommodating magnet steel 4.First slot section 32 is obliquely installed relative to the second slot section 33, and magnetic conduction protrusion 7 is located at the first slot section 32
Interior, magnetic conduction protrusion 7 is located at one end far from the second slot section 33 of the first slot section 32, width of the magnetic conduction protrusion 7 along the first slot section 32
Direction protrusion.Third slot section 34 and the first slot section 32 are located at the both ends of the second slot section 33 (being equivalent to magnet steel 4), magnetic screen every
Magnetic bridge 62 is located between third slot section 34 and the second magnetic screen air groove 61, and third slot section 34 is similar to air groove, the second magnetic cup
One magnetic bridge of traditional approach is separated into two magnetic screen magnetic bridges 62, to rotor punching sheet by the setting for covering air groove 61
The improvement of 1 intensity of body is most important.
First slot section 32 includes that the first connection sideline 321, second connects sideline 322 and third connection sideline 323, and first connects
Edge fit line 321 connect the both ends that sideline 323 is relatively arranged on the second connection sideline 322 with third, the first connection sideline 321 and the
Three connection sidelines 323 are connect with the second slot section 33 respectively, and the both ends in the second connection sideline 322 connect sideline 321 with first respectively
The connection of sideline 323 is connected with third, the first connection sideline 321 connects sideline 323 close to the first magnetic slot 2 relative to third, until
For few magnetic conduction protrusion 7 positioned at the first connection sideline 321, magnetic conduction protrusion 7 is located at the separate second slot section in the first connection sideline 321
33 one end.The setting of magnetic conduction protrusion 7, so that the demagnetized field magnetic line of force that stator side short circuit current generates is mainly through magnetic conduction protrusion
7 guiding role is walked across the first slot section 32, and the demagnetized field magnetic line of force by the magnet steel 4 in the second slot section 33 is largely reduced
Quantity.
As the optional way of the present embodiment, magnetic conduction protrusion 7 is provided with one, is located at the first connection sideline 321, magnetic conduction is convex
7 setting is played, runs through the first slot section 32 convenient for the guidance magnetic line of force, improves the magnetic circuit of demagnetized field.The setting of magnetic conduction protrusion 7, energy
It is enough that stronger guiding function is generated to the magnetic line of force, convenient for the improvement for performance of demagnetizing.In other embodiments of the invention, magnetic conduction is convex
The quantity for playing 7 can also be to be multiple, and position can also be diversified forms, such as both can be set in the first connection sideline 321,
It can be set and connect sideline 323 in third, user can choose according to the actual situation.
In the present embodiment, magnetic conduction protrusion 7 is protruded along the width direction of the first slot section 32, convenient for walking for the guidance magnetic line of force
To, avoid the end magnetic line of force of the magnet steel 4 in the second slot section 33 from concentrating, avoid 4 end of magnet steel locally saturation and cause biggish
Local demagnetization.The protrusion height of magnetic conduction protrusion 7 is greater than 0.5mm, guarantees the width of the first slot section 32 at the most narrow place of magnetic conduction protrusion 7
At least below 4 magnetizing direction thickness 0.5mm of magnet steel in the second slot section 33, guarantee that magnetic conduction protrusion 7 can guide the walking of the magnetic line of force
Direction avoids the magnetic line of force from concentrating in the end of magnet steel 4.
In the present embodiment, at least one is offered between two groups of adjacent magnetic slot groups and remove repeated hole 8, convenient for reducing punching
The weight of ontology 1.It is multiple to go repeated hole 8 symmetrical along rotating in a circumferential direction for punching ontology 1, manufacture easy to process.
As the optional way of the present embodiment, there are two repeated hole 8 is removed, two are gone for setting between two groups of adjacent magnetic slot groups
Repeated hole 8 is arranged along the spaced radial of punching ontology 1, and along the radial direction of punching ontology 1, two are gone repeated hole 8 in the radial direction of punching ontology 1
Size is gradually reduced, and is easy to implement the mitigation of 1 weight of punching ontology.Two are gone to repeated hole 8 respectively the first hole 81 and the second hole 82,
First hole 81 is circular hole, and the second hole 82 is elliptical aperture, rationally utilizes the space of punching ontology 1, realizes that the weight of punching ontology 1 subtracts
Gently.In other embodiments of the invention, the shape for removing repeated hole 8 can also be tri-angle-holed, rectangular opening or irregularly-shaped hole etc., make
User can choose according to the actual situation.
The working principle of the embodiment of the present invention are as follows:
Using the motor of the rotor, demagnetize under operating condition in electric motor short circuit, the setting of magnetic conduction protrusion 7 changes and plans
The trend for the demagnetization magnetic circuit that short circuit current generates, makes demagnetized field concentrate on magnetic conduction protrusion 7, largely reduces magnet steel 4
The degree of saturation of end, and then greatly improve 4 local demagnetization situation of magnet steel.The motor rotor punching sheet 100, can be at output peak
In the case that value torque varies less, the anti-irreversible demagnetization ability of magneto is greatly improved.
Second embodiment
Researcher after study, to motor rotor punching sheet 100 provided by the invention, on the basis of above-mentioned first embodiment
On, following optional other structures schemes can be also made, are described as follows:
As shown in figure 4, in the present embodiment, there are two 7 settings of magnetic conduction protrusion, one of them is located at the first connection sideline
321, another is located at third connection sideline 323.It is equivalent to two magnetic conduction protrusions 7 to be oppositely arranged, run through convenient for the guidance magnetic line of force
First slot section 32 compares the magnetic conduction protrusion 7 of unilateral setting, stronger guiding function can be generated to the magnetic line of force, convenient for demagnetization property
The improvement of energy.
3rd embodiment
A kind of magneto is present embodiments provided, including above-mentioned motor rotor punching sheet 100.
In the present embodiment, which applies above-mentioned motor rotor punching sheet 100, and improving the anti-of motor can not
Inverse demagnetization capability, reduces the cost of permanent magnet, reduces the manufacturing cost of magneto, meet the needs of user.
It should be noted that in the absence of conflict, the feature in embodiment in the present invention can be combined with each other.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of motor rotor punching sheet is applied to New-energy electric vehicle, which is characterized in that including punching ontology, the punching
The circumferential direction of ontology offers multiple groups magnetic slot group, and the multiple groups magnetic slot group is symmetrically set along rotating in a circumferential direction for the punching ontology
It sets, magnetic slot group described in every group includes the first magnetic slot and two the second magnetic slots, and described two second magnetic slots are in V-shape point
The center of the punching ontology is directed toward at the tip of cloth and V-shape, and first magnetic slot is located at the V of described two second magnetic slots
The open end of font, the both ends of the length direction of first magnetic slot are symmetrically opened up there are two the first magnetic screen air groove, institute
It states and offers the second magnetic screen air groove between two the second magnetic slots, close first magnetic slot of second magnetic slot
The inner sidewall of one end be provided at least one magnetic conduction protrusion, the magnetic conduction protrusion is used to guide the direction of travel of the magnetic line of force.
2. motor rotor punching sheet according to claim 1, which is characterized in that be provided in second magnetic slot for limiting
Second magnetic slot is divided into the first slot section, second by two retention beads of magnet steel position processed, described two retention beads
Slot section and third slot section, the first slot section is relative to the third slot section close to first magnetic slot, the second slot section
For accommodating the magnet steel, the first slot section is obliquely installed relative to the second slot section, and the magnetic conduction protrusion is located at described
In first slot section, the magnetic conduction protrusion is located at one end far from the second slot section of the first slot section, the magnetic conduction protrusion
Along the width direction protrusion of the first slot section.
3. motor rotor punching sheet according to claim 2, which is characterized in that the protrusion height of the magnetic conduction protrusion is greater than
0.5mm。
4. motor rotor punching sheet according to claim 2, which is characterized in that the first slot section includes the first connection side
Line, the second connection sideline and third connect sideline, and first connection sideline connect sideline with the third and is relatively arranged on institute
State the both ends in the second connection sideline, first connection sideline connect with the third sideline respectively with the second slot Duan Lian
It connecing, the both ends in second connection sideline connects sideline and third connection sideline with described first respectively and connect, and described the
Relative to third connection sideline close to first magnetic slot, one of them described magnetic conduction protrusion is located at institute in one connection sideline
The first connection sideline is stated, the magnetic conduction protrusion is located at the one end far from the second slot section in first connection sideline.
5. motor rotor punching sheet according to claim 4, which is characterized in that there are two the magnetic conduction protrusion settings, wherein
One magnetic conduction protrusion is located at first connection sideline, another described magnetic conduction protrusion is located at third connection sideline.
6. motor rotor punching sheet according to claim 1, which is characterized in that first magnetic slot is along the punching ontology
Tangentially extending, center line the radially extending along the punching ontology of first magnetic slot, described two second magnetic slots
Symmetrical center line be overlapped with the center line of first magnetic slot.
7. motor rotor punching sheet according to claim 1, which is characterized in that the second magnetic screen air groove is located at described
In the symmetrical center line of two the second magnetic slots, the second magnetic screen air groove is respectively between described two second magnetic slots
Form two magnetic screen magnetic bridges.
8. motor rotor punching sheet according to claim 1, which is characterized in that opened between magnetic slot group described in adjacent two groups
Repeated hole is removed equipped at least one.
9. motor rotor punching sheet according to claim 1, which is characterized in that set between magnetic slot group described in adjacent two groups
Repeated hole is removed there are two setting, it is described two that repeated hole is gone to be arranged along the spaced radial of the punching ontology.
10. a kind of magneto, which is characterized in that including motor rotor punching sheet described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811274972.4A CN109167449A (en) | 2018-10-30 | 2018-10-30 | Motor rotor punching sheet and magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811274972.4A CN109167449A (en) | 2018-10-30 | 2018-10-30 | Motor rotor punching sheet and magneto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109167449A true CN109167449A (en) | 2019-01-08 |
Family
ID=64876315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811274972.4A Withdrawn CN109167449A (en) | 2018-10-30 | 2018-10-30 | Motor rotor punching sheet and magneto |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109167449A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936230A (en) * | 2019-03-28 | 2019-06-25 | 东南大学 | A kind of series circuit type two-layer hybrid permanent magnetism memory electrical machine |
| CN110212666A (en) * | 2019-05-16 | 2019-09-06 | 广州小鹏汽车科技有限公司 | Rotor punching structure, stator punching and electric machine structure |
| CN112018917A (en) * | 2020-08-31 | 2020-12-01 | 重庆长安新能源汽车科技有限公司 | Punching sheet structure and permanent magnet synchronous motor |
| WO2021249590A1 (en) * | 2020-06-09 | 2021-12-16 | Schaeffler Technologies AG & Co. KG | Electric motor with receiving pockets for receiving magnets |
| CN114362401A (en) * | 2022-01-20 | 2022-04-15 | 擎风电驱动科技(苏州)有限公司 | Permanent magnet synchronous motor rotor punching sheet structure for compound electric motorcycle and rotor thereof |
| CN114362400A (en) * | 2022-01-20 | 2022-04-15 | 擎风电驱动科技(苏州)有限公司 | Permanent magnet synchronous motor rotor punching sheet structure for electric motorcycle and rotor thereof |
| EP4050765A1 (en) * | 2021-02-26 | 2022-08-31 | Hefei Jee Power Systems Co., Ltd. | Rotor sheet |
-
2018
- 2018-10-30 CN CN201811274972.4A patent/CN109167449A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936230A (en) * | 2019-03-28 | 2019-06-25 | 东南大学 | A kind of series circuit type two-layer hybrid permanent magnetism memory electrical machine |
| CN110212666A (en) * | 2019-05-16 | 2019-09-06 | 广州小鹏汽车科技有限公司 | Rotor punching structure, stator punching and electric machine structure |
| WO2021249590A1 (en) * | 2020-06-09 | 2021-12-16 | Schaeffler Technologies AG & Co. KG | Electric motor with receiving pockets for receiving magnets |
| CN112018917A (en) * | 2020-08-31 | 2020-12-01 | 重庆长安新能源汽车科技有限公司 | Punching sheet structure and permanent magnet synchronous motor |
| CN112018917B (en) * | 2020-08-31 | 2022-04-01 | 重庆长安新能源汽车科技有限公司 | Punching sheet structure and permanent magnet synchronous motor |
| EP4050765A1 (en) * | 2021-02-26 | 2022-08-31 | Hefei Jee Power Systems Co., Ltd. | Rotor sheet |
| CN114362401A (en) * | 2022-01-20 | 2022-04-15 | 擎风电驱动科技(苏州)有限公司 | Permanent magnet synchronous motor rotor punching sheet structure for compound electric motorcycle and rotor thereof |
| CN114362400A (en) * | 2022-01-20 | 2022-04-15 | 擎风电驱动科技(苏州)有限公司 | Permanent magnet synchronous motor rotor punching sheet structure for electric motorcycle and rotor thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109167449A (en) | Motor rotor punching sheet and magneto | |
| US11177707B2 (en) | Motor rotor and permanent magnet motor | |
| US20190190332A1 (en) | Rotor structure, motor and compressor | |
| CN107222047B (en) | Tangential motor, tangential motor rotor and rotor core thereof | |
| CN108847731A (en) | A kind of automobile permanent magnet synchronous motor rotor structure and vehicle | |
| CN108832742B (en) | Alternating-pole motor rotor and alternating-pole motor | |
| CN111052546B (en) | Rotor of rotating electric machine | |
| US20210044166A1 (en) | Rotor structure, permanent magnet auxiliary synchronous reluctance motor, and electric vehicle | |
| CN205647074U (en) | Rotor core , rotor, motor and compressor | |
| CN208835851U (en) | Rotor and magneto | |
| CN111509883A (en) | Rotor assembly and axial magnetic field motor | |
| CN208939694U (en) | Motor rotor punching sheet and magneto | |
| CN108736610B (en) | Rotor and magneto | |
| CN107370265A (en) | Skewed pole rotor iron core and its core stamping, skewed pole rotor and motor | |
| US20210167644A1 (en) | Rotor structure, permanent magnet auxiliary synchronous reluctance motor, and electric vehicle | |
| CN108110914B (en) | Stator core and motor | |
| CN207782522U (en) | Rotor and magneto | |
| CN112968557B (en) | Motor rotor, motor, car | |
| CN205921471U (en) | Rotor punching and permanent -magnet machine | |
| CN208423983U (en) | Rotor and magneto | |
| CN110768421A (en) | Rotor of permanent magnet motor, permanent magnet motor and compressor | |
| CN108777522B (en) | Motor rotor and permanent magnet motor | |
| CN108880035B (en) | Alternately pole rotor and alternately pole motor | |
| CN110350691A (en) | Rotor structure, motor and household electrical appliance | |
| CN112152358A (en) | Rotor punching sheet, rotor core, motor and compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 |
Application publication date: 20190108 |
|
| WW01 | Invention patent application withdrawn after publication |