CN206461452U - A kind of motor rotor punching sheet, rotor and motor - Google Patents
A kind of motor rotor punching sheet, rotor and motor Download PDFInfo
- Publication number
- CN206461452U CN206461452U CN201621078156.2U CN201621078156U CN206461452U CN 206461452 U CN206461452 U CN 206461452U CN 201621078156 U CN201621078156 U CN 201621078156U CN 206461452 U CN206461452 U CN 206461452U
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- permanent magnet
- magnet trough
- punching
- rotor
- motor rotor
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Abstract
The utility model provides a kind of motor rotor punching sheet, including punching body, the punching body is integrally rounded, the punching body is provided with the permanent magnet trough of multiple fixed permanent magnets, the center of the punching body is provided with the axis hole for installing machine shaft, it is characterised in that the punching body is monolithic construction, the edge of the punching body is provided with multiple breach along its circumferencial direction, and the breach is interconnected with the permanent magnet trough.The utility model also provides a kind of rotor, including multiple motor rotor punching sheet bodies as described above.The utility model also provides a kind of motor, including rotor as described above.The motor rotor punching sheet, rotor and electric machine structure are simple, and the utilization rate of permanent magnet is high, and process and assemble is simple, and assembly precision is high, reduces the overall production cost of rotor.
Description
Technical field
The utility model belongs to machine field, is related to a kind of built-in permanent magnet motor rotor punching, interior permanent magnet machines
Rotor and motor.
Background technology
In existing interior permanent magnet machines, rotor punching generally uses monoblock type or two-layer stratigraphic structure.
Unitary rotor punching excircle is closure, and punching is provided with permanent magnet trough and every magnetic magnetic bridge, after punching is laminated,
Permanent magnet is inserted in permanent magnet trough and forms rotor.Its rotor of two-layer equation lamination structure uses ectonexine lamination structure, internal layer punching
Piece is separated with outer layer punching, and ectonexine punching is fixed into insertion permanent magnet formation rotor by end cap and bolt.
Above-mentioned unitary rotor punching, due to every magnetic magnetic bridge so that the magnetic line of force part that permanent magnet is produced is turning
By being closed every magnetic magnetic bridge in son, the magnetic line of force is not passed through air gap and reaches stator.Consequently, it is possible to which the magnetomotive force that permanent magnet is produced has
Sub-fraction reaches the energy just corresponding reduction in motor gas-gap because being consumed every the presence of magnetic magnetic bridge in rotor punching
, the utilization rate also therefore reduction of permanent magnet.In permanent-magnet material expensive today, this is for the cost of controlled motor
It is very unfavorable.
Above-mentioned two-layer equation rotor punching, although the utilization rate of permanent magnet is higher, but its magnet steel installs complicated, and magnet steel
Relative positional accuracy be difficult to ensure that, i.e., each pole magnet steel of motor be not on rotor circular symmetry be distributed so that the magnetic field of formation
It is not rotationally symmetrical circular magnetic field, can so causes rotor heating too high, electric efficiency reduction easily burns out motor.Work as electricity
When machine rotating speed is very high, centrifugal force is very big, and the direction that outer layer rotor punching will prolong centrifugal force is outwards offset, and can so cause air gap
Magnetic field deformity, seriously so that rotor diameter becomes big, occurs electric machine chamber-sweeping, damages motor.Add the technique stream of production
Journey, improves production cost.
Utility model content
The utility model be intended at least to solve to a certain extent one of technical problem that above-mentioned prior art is present there is provided
A kind of motor rotor punching sheet, rotor and motor, the motor rotor punching sheet is monolithic construction and outer circumferential edges are provided with
The breach that multiple and permanent magnet trough is communicated, its is simple in construction, and the utilization rate of permanent magnet is high, processes, assembles simple and convenient, assembling essence
Degree is high, reduces the overall production cost of rotor.
A kind of motor rotor punching sheet provided according to the utility model embodiment, including punching body, the punching body
Overall rounded, the punching body is provided with the permanent magnet trough of multiple fixed permanent magnets, and the center of the punching body is provided with
The axis hole of machine shaft is installed, it is characterised in that the punching body is monolithic construction, the edge of the punching body along its
Circumferencial direction is provided with multiple breach, and the breach is interconnected with the permanent magnet trough.
According to one embodiment of the present utility model, the permanent magnet trough is in strip, using permanent magnet trough described in each two as
The multigroup permanent magnet trough unit for being arranged into V-type of unit composition, the permanent magnet trough unit is circumferentially equal centered on the axis hole
It is even to be distributed on the rotor punching body.
According to some embodiments of the present utility model, its V-type wedge angle one end of the permanent magnet trough unit for being arranged into V-type refers to
To the punching body central.
According to some embodiments of the present utility model, the punching body is used to fix the punching body provided with multiple
Pin hole, the pin hole is circularly and evenly distributed centered on the axis hole in the inner side of the V-type permanent magnet trough unit.
According to one embodiment of the present utility model, the key being engaged with machine shaft spline is provided with the inside of the axis hole
Groove.
According to one embodiment of the present utility model, the permanent magnet trough is in strip, and the breach is located at the permanent magnetism
One end of body groove, the punching body is provided with to be communicated and one-to-one stopper slot, the stopper slot with the permanent magnet trough
One end of the breach is not set positioned at the permanent magnet trough.
According to one embodiment of the present utility model, the breach is one-to-one with the permanent magnet trough.
According to some embodiments of the present utility model, the width of the breach is less than the width of the permanent magnet trough.
According to one embodiment of the present utility model, the punching body is additionally provided with multiple second permanent magnet troughs, described
Two permanent magnet troughs are not connected with the breach.
According to some embodiments of the present utility model, second permanent magnet trough centered on the rotor shaft hatch circumferentially
It is uniformly distributed in the inner side of the V-type permanent magnet trough unit.
A kind of rotor provided according to the utility model embodiment, including multiple motors as described in any of the above
Rotor punching.
A kind of motor provided according to the utility model embodiment, it is characterised in that including rotor as described above.
A kind of motor rotor punching sheet, rotor and the motor provided according to the utility model embodiment, including punching sheet
Body, punching body is monolithic construction, and the edge of punching body is provided with multiple breach along its circumferencial direction, and breach with it is described forever
Magnet slot is interconnected.So design causes motor rotor construction simple, and the utilization rate of permanent magnet is high, processing, the simple side of assembling
Just, assembly precision is high, reduces the overall production cost of rotor.
Brief description of the drawings
Fig. 1 is the motor rotor stamping sheet structure schematic diagram that the utility model is provided.
Fig. 2 is the motor rotor stamping sheet structure schematic diagram that another embodiment of the utility model is provided.
Fig. 3 is the motor rotor stamping sheet structure schematic diagram that another embodiment of the utility model is provided.
Fig. 4 is the motor rotor stamping sheet structure schematic diagram that another embodiment of the utility model is provided.
Fig. 5 is the motor rotor construction schematic diagram that the utility model is provided.
Embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model is solved are more clearly understood, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
Motor rotor punching sheet, rotor and motor that the utility model is related to, number of poles can be two poles, quadrupole, sextupole,
The ends of the earth and other numbers of poles, are mainly illustrated so that number of poles is the motor rotor punching sheet and rotor of sextupole as an example below.
The motor rotor punching sheet provided according to the utility model embodiment, rotor is described in detail below with reference to Fig. 1-5
And motor.
As shown in figure 1, the motor rotor punching sheet provided according to the utility model embodiment, including punching body 1, it can be with
It is made of such as silicon steel sheet material known in the art.Punching body 1 is overall to be provided with multiple fixations forever above with rounded
The permanent magnet trough 2 of magnet, when multiple punching bodies 1 are stacked, corresponding permanent magnet trough 2 on each punching body 1
Overlap, then it is that may make up a kind of permanent magnet machine rotor that permanent magnet, which is inserted in permanent magnet trough 2,.In addition, the center of punching body 1 is set
There is the axis hole 4 for installing machine shaft.
It should be noted that punching body 1 is monolithic construction, this monolithic construction so that punching body 1 has system
Make that technological process simple, simple installation and installation accuracy are high, save the advantages of raw material, will not because of motor rotating speed it is too high and
There is the situation that hyperpyrexia sweeps thorax with rotor.The edge of punching body 1 is provided with multiple breach 6, breach 6 and permanent magnetism along its circumferencial direction
Body groove 2 is interconnected.So design, whole rotor will not have every magnetic magnetic bridge, and the magnetic line of force of electromagnet is substantially all to be worn
Cross air gap and reach stator, consequently, it is possible to which the magnetomotive force that permanent magnet is produced maximizes the use, improve the utilization of permanent magnet
Rate.
According to one embodiment of the present utility model, as shown in Figure 1, it is preferred that the permanent magnet trough 2 can be in strip,
Can be that unit constitutes multigroup permanent magnet trough unit 8 for being arranged into V-type, the permanent magnet trough with permanent magnet trough described in each two 2
Unit 8 is circularly and evenly distributed centered on the axis hole 4 on the rotor punching body 1.
It should be noted that the permanent magnet trough 2 can also be arranged into other shapes, for example, ought only four permanent magnets
During groove 2, each permanent magnet trough 2 can be arranged individually, simply line up V-type advantageously in the expansion speed energy of magnetic field of permanent magnet weak magnetic
Power so that the magnetic field of maximized utilization permanent magnet.
According to some embodiments of the present utility model, its V-type wedge angle one end of the permanent magnet trough unit 8 for being arranged into V-type
The center of the punching body 1 can be pointed to, as shown in Figure 1.
According to some embodiments of the present utility model, such as Fig. 1, the punching body 1 is used to fix described provided with multiple
The pin hole 3 of punching body 1, the pin hole 3 is circularly and evenly distributed centered on the axis hole 4 in the V-type permanent magnet
The inner side of groove unit 8.It may be inserted into bolt or latch in pin hole 3 multiple rotor punchings are fixed together, to prevent rotation stop
Sub- punching is mutually shifted.
Such as Fig. 1, according to one embodiment of the present utility model, the inner side of axis hole 4 is provided with to match with machine shaft spline
The keyway 5 of conjunction.It should be noted that the keyway 5 can be one or any several, can be specific according to rotor punching
Size is determined.
According to one embodiment of the present utility model, such as Fig. 1, the permanent magnet trough 2 is located in strip, and the breach 6
It can be provided with and be communicated with the permanent magnet trough 2 and one-to-one spacing on one end of the permanent magnet trough 2, the punching body 1
Groove 7, the stopper slot 7 is located at one end that the permanent magnet trough 2 does not set the breach 6.The setting of stopper slot 7, is conducive to whole
The processing of motor rotor punching sheet, a position-limiting action is played to permanent magnet, it is also possible that rotor preferably radiates, mitigates electricity
The quality of machine rotor punching.
According to some embodiments of the present utility model, such as Fig. 1 and Fig. 3, it is preferred that the breach 6 and the permanent magnet trough 2
It can be one-to-one, i.e., one correspondence of permanent magnet trough 2, one breach 6.So design, 6 pairs of breach is installed on
The positioning of permanent magnet in permanent magnet trough 2 is more accurate so that permanent magnet power suffered in rotation is more uniform, will not be because of
The high speed of motor rotates and permanent magnet is thrown out of thorax in permanent magnet trough 2, damage motor.
It should be noted that the breach 6 and the permanent magnet trough 2 can also be the corresponding multiple institutes of the breach 6
Permanent magnet trough 2 is stated, such as one breach 6 can correspond to two permanent magnet troughs 2, as shown in Figure 2 and Figure 4.
According to some embodiments of the present utility model, when one breach 6 of the correspondence of permanent magnet trough 2, institute
The width of the permanent magnet trough 2 can be less than by stating the width of breach 6, as shown in figures 1 and 3.When a correspondence of breach 6 two
During the individual permanent magnet trough 2, the width of the breach 6 is more than the width of the permanent magnet trough 2, as shown in Figure 2 and Figure 4.
The breach 6 causes the magnetic line of force of electromagnet is substantially all to reach stator through air gap, consequently, it is possible to which permanent magnet is produced
Raw magnetomotive force maximizes the use, and improves the utilization rate of permanent magnet.The breach 6 also has the work for positioning permanent magnet
With so that motor is unlikely to permanent magnet in high speed rotates and is thrown out of thorax in damage motor.
According to one embodiment of the present utility model, as shown in Figure 3 and Figure 4, it is also provided with the punching body 1 many
Individual second permanent magnet trough 9, second permanent magnet trough 9 is not connected with the breach 6.
According to some embodiments of the present utility model, second permanent magnet trough 9 can be centered on the axis hole 4 in circle
It is uniformly distributed in the inner side of the V-type permanent magnet trough unit 8 week, as shown in Figure 3 and Figure 4.
Specifically, second permanent magnet trough 9 is used to strengthen the magnetic field intensity in motor gas-gap, the second permanent magnet trough 9
Strip can be set to, its can by any-mode with the axis hole 4 to be circumferentially uniformly arranged in the rotor punching to center
On body 1, the present embodiment is a kind of preferable scheme.
A kind of rotor provided according to the utility model embodiment, including multiple motors as described in any of the above
Rotor punching, it is specific as shown in Figure 5.Fig. 5 only indicates a kind of scheme in each embodiment, and other schemes are similar.
A kind of motor provided according to the utility model embodiment, including rotor as described above.
A kind of motor rotor punching sheet, rotor and the motor provided according to the utility model embodiment, including punching sheet
Body 1, punching body 1 is overall rounded, and punching body 1 is provided with the permanent magnet trough 2 of multiple fixed permanent magnets, to limit permanent magnet
Movement；The center of punching body 1 is provided with the axis hole 4 for installing machine shaft, and punching body 1 is monolithic construction, punching body 1
Edge be provided with multiple breach 6 along its circumferencial direction, and breach 6 and the permanent magnet trough 2 are interconnected.So design causes electricity
Motor rotor structure is simple, and the utilization rate of permanent magnet is high, processes, assembles simple and convenient, and assembly precision is high, reduces rotor
Overall production cost.
In description of the present utility model, it is to be understood that term " " center ", " on ", " under ", " circumference ", " circumference "
Orientation or position relationship Deng instruction are, based on orientation shown in the drawings or position relationship, to be for only for ease of and describe this practicality newly
Type and simplified description, rather than instruction or the signified device of hint or element must be with specific orientation, with specific orientation
Construction and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " " another " are only used for describing purpose, and it is not intended that indicating or implying and be relative
Importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be with bright
Show or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, example
Such as two, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect or can communicate each other；Can be joined directly together, the indirect phase of intermediary can also be passed through
Even, can be two element internals connection or two elements interaction relationship, unless otherwise clear and definite restriction.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments " or " some examples " etc.
It is of the present utility model that description means that specific features, structure, material or the feature with reference to the embodiment or example description are contained in
In at least one embodiment or example.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical
Embodiment or example.Moreover, specific features, structure, material or the feature of description can be in any one or more embodiments
Or combined in an appropriate manner in example.In addition, in the case of not conflicting, those skilled in the art can say this
The feature of not be the same as Example or example and non-be the same as Example or example described in bright book is combined and combined.
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 scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (12)
1. a kind of motor rotor punching sheet, including punching body, the punching body are integrally rounded, the punching body is provided with
The permanent magnet trough of multiple fixed permanent magnets, the center of the punching body is provided with the axis hole for installing machine shaft, it is characterised in that
The punching body is monolithic construction, and the edge of the punching body is provided with multiple breach, the breach along its circumferencial direction
It is interconnected with the permanent magnet trough.
2. motor rotor punching sheet according to claim 1, it is characterised in that the permanent magnet trough is in strip, with each two
The permanent magnet trough is that unit constitutes multigroup permanent magnet trough unit for being arranged into V-type, and the permanent magnet trough unit is with the axis hole
Centered on be circularly and evenly distributed on the rotor punching body.
3. motor rotor punching sheet according to claim 2, it is characterised in that the permanent magnet trough unit for being arranged into V-type
Point to the punching body central in its V-type wedge angle one end.
4. motor rotor punching sheet according to claim 2, it is characterised in that the punching body is used for admittedly provided with multiple
The pin hole of the fixed punching body, the pin hole is circularly and evenly distributed centered on the axis hole in the V-type permanent magnetism
The inner side of body groove unit.
5. motor rotor punching sheet according to claim 1, it is characterised in that be provided with and spent with machine shaft on the inside of the axis hole
The keyway that key is engaged.
6. motor rotor punching sheet according to claim 1, it is characterised in that the permanent magnet trough is in strip, and described lack
Mouth is located at one end of the permanent magnet trough, and the punching body is provided with to be communicated and one-to-one spacing with the permanent magnet trough
Groove, the stopper slot is located at the other end that the permanent magnet trough does not set the breach.
7. motor rotor punching sheet according to claim 1, it is characterised in that the breach and the permanent magnet trough are one by one
It is corresponding.
8. motor rotor punching sheet according to claim 7, it is characterised in that the width of the breach is less than the permanent magnet
The width of groove.
9. motor rotor punching sheet according to claim 2, it is characterised in that the punching body is additionally provided with multiple second forever
Magnet slot, second permanent magnet trough is not connected with the breach.
10. motor rotor punching sheet according to claim 9, it is characterised in that second permanent magnet trough is with the axis hole
Centered on be circularly and evenly distributed in the inner side of the V-type permanent magnet trough unit.
11. a kind of rotor, it is characterised in that including multiple motor rotor punching sheets as described in claim any one of 1-10.
12. a kind of motor, it is characterised in that including rotor as claimed in claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078156.2U CN206461452U (en) | 2016-09-23 | 2016-09-23 | A kind of motor rotor punching sheet, rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078156.2U CN206461452U (en) | 2016-09-23 | 2016-09-23 | A kind of motor rotor punching sheet, rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206461452U true CN206461452U (en) | 2017-09-01 |
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ID=59692380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621078156.2U Active CN206461452U (en) | 2016-09-23 | 2016-09-23 | A kind of motor rotor punching sheet, rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206461452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616180A (en) * | 2018-07-23 | 2018-10-02 | 杨世国 | A kind of combination type permanent-magnet rotor |
| CN114362397A (en) * | 2022-02-21 | 2022-04-15 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
-
2016
- 2016-09-23 CN CN201621078156.2U patent/CN206461452U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616180A (en) * | 2018-07-23 | 2018-10-02 | 杨世国 | A kind of combination type permanent-magnet rotor |
| CN114362397A (en) * | 2022-02-21 | 2022-04-15 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
| CN114362397B (en) * | 2022-02-21 | 2022-11-18 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
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