CN206077174U - A kind of p-m rotor and motor - Google Patents
A kind of p-m rotor and motor Download PDFInfo
- Publication number
- CN206077174U CN206077174U CN201620500108.1U CN201620500108U CN206077174U CN 206077174 U CN206077174 U CN 206077174U CN 201620500108 U CN201620500108 U CN 201620500108U CN 206077174 U CN206077174 U CN 206077174U
- Authority
- CN
- China
- Prior art keywords
- armature spindle
- rotor
- limiting section
- magnet
- bearing
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of p-m rotor and motor, wherein, the forming method of p-m rotor includes：Armature spindle is provided, permanent magnetism powder body material integrated injection molding magnet is adopted on the armature spindle and the limiting section of axial float is occurred for limiting the bearing being arranged on the armature spindle.By adopting permanent-magnet material integrated injection molding on armature spindle magnet and limiting section, Snap ring structure is eliminated, while without annular groove is opened up on armature spindle, reducing production process, production efficiency is improve, while also ensure that the structural strength of rotor.
Description
Technical field
The utility model is related to technical field of motors, more specifically, is related to a kind of p-m rotor and comprising this permanent magnetism
The motor of rotor.
Background technology
Motor (English：Electric machinery, are commonly called as " motor ") refer to that the foundation law of electromagnetic induction realizes electric energy
Conversion or a kind of calutron for transmitting.Motor is made up of stator, rotor and other annexes.The rotor of existing motor is general all
For p-m rotor, p-m rotor can provide permanent magnetic field for motor operation, when this rotor is applied on motor, can coordinate and be provided with
Bearing.As shown in figure 1, this p-m rotor includes armature spindle 1 ' and is fixed on the magnet 2 ' of the upper synchronous rotation of armature spindle 1 ',
The two ends of armature spindle 1 ' are connected with the housing of motor by bearing 3 ', near magnet 2 ' on armature spindle 1 ' and positioned at bearing 3 '
Side arranges the annular groove 4 ' of annular, is arranged with snap ring 5 ' annular groove 4 ' is interior.Although the p-m rotor of said structure can lead to
Crossing annular groove 4 ' and the cooperation of snap ring 5 ' prevents bearing 3 ' along the axis direction play of armature spindle 1 ', but due to needing in armature spindle
1 ' above processes annular groove 4 ' and increases snap ring 5 ' so that production technology is more loaded down with trivial details, and production process is more, and then reduces production speed
Degree, while armature spindle 1 ' above opens up annular groove 4 ' can also reduce the structural strength of armature spindle 1 ', even if the knot of whole p-m rotor
Structure intensity decreases.
Utility model content
A purpose of the present utility model is to provide a kind of p-m rotor, and its simple structure, production process are few, production effect
Rate is high, and structural strength is high, can effectively prevent bearing play in the axial direction.
Another purpose of the present utility model is to provide a kind of motor, and which adopts the p-m rotor of integrated injection molding.
It is that, up to this purpose, the utility model is employed the following technical solutions：
On the one hand, there is provided a kind of p-m rotor, including armature spindle and magnet, also include cover on the armature spindle for limiting
If bearing there is the limiting section of axial float, the magnet and the limiting section are using permanent-magnet material integrated injection molding at described turn
On sub- axle.
On the other hand, a kind of motor is also provided, including p-m rotor as above.
The beneficial effects of the utility model are：The forming method of the p-m rotor that the utility model is provided by by magnet and
Limiting section eliminates Snap ring structure, while opening up without on armature spindle using permanent-magnet material integrated injection molding on armature spindle
Annular groove, reduces production process, improves production efficiency, while also ensure that the structural strength of rotor.
Description of the drawings
Fig. 1 is the structural representation of existing p-m rotor.
Fig. 2 is the structural representation of the p-m rotor described in the utility model embodiment.
In Fig. 1：
1 ', armature spindle；2 ', magnet；3 ', bearing；4 ', annular groove；5 ', snap ring.
In Fig. 2：
1st, armature spindle；2nd, magnet；3rd, bearing；4th, limiting section.
Specific embodiment
The technical solution of the utility model is further illustrated below in conjunction with the accompanying drawings and by specific embodiment.
The utility model embodiment provides a kind of forming method of p-m rotor, comprises the steps：Armature spindle is provided,
Permanent magnetism powder body material integrated injection molding magnet is adopted on armature spindle and is occurred axially for limiting the bearing being arranged on armature spindle
The limiting section of play.
The concrete operation step of magnet and limiting section using permanent-magnet material integrated injection molding on armature spindle is：Turn according to permanent magnetism
The special injection mold of sub structure design, is then placed on armature spindle in the mould, injects the magnetic of permanent-magnet material, adopts
The modes such as compacting form magnet and limiting section on armature spindle, and whole process is completed using mould cooperation, it is not necessary to assemble magnet
And limiting section, assembly process is greatly reduced, production efficiency is improved.Further, since snap ring is not processed on armature spindle
The structures such as groove so that the intensity of the even whole p-m rotor of armature spindle is all higher.
The utility model embodiment additionally provides a kind of p-m rotor, as shown in Fig. 2 p-m rotor includes 1 He of armature spindle
Magnet 2, also includes the limiting section 4 of axial float, 2 He of the magnet for limiting the bearing 3 being arranged on the armature spindle 1
The limiting section 4 is using permanent-magnet material integrated injection molding on the armature spindle 1.
By adopting permanent-magnet material integrated injection molding on armature spindle 1 magnet 2 and limiting section 4, Snap ring structure is eliminated, together
When open up annular groove without on armature spindle 1, reduce production process, improve production efficiency, while also ensure that permanent magnetism
The structural strength of rotor.
Specifically, in annular, its projection is on the armature spindle 2 and coaxial with the armature spindle 2 for the limiting section 4
Arrange.
By limiting section 4 is set to cirque structure of the projection on armature spindle 1, limiting section 4 on the one hand can be increased
Intensity, on the other hand can simplify mould structure, reduce manufacturing cost.
In the present embodiment, the limiting section 4 away from one end and the armature spindle 1 of the magnet 2 outer surface it
Between be formed with limited step, the limited step is parallel with the end face of the bearing 3.
When the size of limiting section 4 is larger, its part may be contacted with the outer ring of bearing 3, although rotated in p-m rotor
During, will not relatively rotate between the inner ring of limiting section 4 and bearing 3, but limiting section 4 can be sent out with the outer ring of bearing 3
It is raw to relatively rotate therefore the limited step of limiting section 4 is parallel with the end face of bearing 3, can reduce when p-m rotor is rotated
Frictional vibration between the outer ring of limited step and bearing 3, and then noise when p-m rotor is rotated is reduced, prolongation uses the longevity
Life.
Preferably, separation layer is provided with the limited step.
On the one hand arrange separation layer can prevent bearing 3 or other parts with limit when p-m rotor is installed with bearing 3
4 direct collision of position portion, extends the service life of limiting section 4, if on the other hand the size of limiting section 4 is larger, is also prevented from
There is friction with the outer ring of bearing 3 in limiting section 4, reduce the generation of magnetic bits, further reduce the abrasion of limiting section 4, extend spacing
The service life in portion 4.
More preferred, the separation layer is fixedly connected with the limited step.
By separation layer is fixedly connected with limited step, can prevent between separation layer and limiting section, producing relative turning
It is dynamic, and then separation layer would not rub limited step, the generation for effectively preventing magnetic from considering to be worth doing.
In other embodiments of the present utility model, the limiting section be two or more spacing preiections, two
Or plural spacing preiection is uniformly distributed along the circumference of the armature spindle 1.
By limiting section is set to, along 1 circumferential equally distributed spacing preiection of armature spindle, to prevent 3 axle of bearing
To play, the material consumption of limiting section, and then the weight of reduction rotor can also be reduced, material is economized on.
In other embodiments of the present utility model, the magnet 2 and 4 surface of the limiting section are additionally provided with one layer of injection
Protective layer.
By arranging this injection protective layer, magnet 2 and limiting section 4 can be sealed on armature spindle, effectively prevent magnet 2
Magnetic bits are produced after colliding with limiting section 4 and other magnetic conductors, extends the service life of p-m rotor.
In other embodiments of the present utility model, contact with the magnet 2 and the limiting section 4 on the armature spindle 1
Position by roughening treatment be formed with roughening region.
By arranging roughening region, magnet 2 and limiting section 4 can be made in injection and the combination of armature spindle 1 is even closer.
Roughening region is the rough region that armature spindle 1 is formed in its surface designated area by roughening treatment, in 2 He of magnet
The bonding strength of this rough region enhancing magnet 2, limiting section 4 and armature spindle 1 in 4 injection molding process of limiting section, can be passed through.
Embodiment of the present utility model additionally provides a kind of motor, including p-m rotor as above.P-m rotor
Structure can refer to Fig. 2 and above-described embodiment, and here is omitted.
Know-why of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the restriction to the utility model protection domain can not be construed to by any way.Based on explanation herein,
Those skilled in the art associates other specific embodiments of the present utility model by need not paying performing creative labour,
These modes are fallen within protection domain of the present utility model.
Claims (9)
1. a kind of p-m rotor, including armature spindle and magnet, it is characterised in that also include being arranged on the armature spindle for limiting
Bearing there is the limiting section of axial float, the magnet and the limiting section are using permanent-magnet material integrated injection molding in the rotor
On axle.
2. p-m rotor according to claim 1, it is characterised in that the limiting section is in annular, and its projection is described
On armature spindle, and it is coaxially disposed with the armature spindle.
3. p-m rotor according to claim 2, it is characterised in that one end and institute of the limiting section away from the magnet
Limited step is formed between the outer surface for stating armature spindle, the limited step is parallel with the end face of the bearing.
4. p-m rotor according to claim 3, it is characterised in that be provided with separation layer on the limited step.
5. p-m rotor according to claim 4, it is characterised in that the separation layer and the limited step are fixed and connected
Connect.
6. p-m rotor according to claim 1, it is characterised in that the limiting section is two or more spacing
Projection, two or more spacing preiections are uniformly distributed along the circumference of the armature spindle.
7. the p-m rotor according to any one of claim 1 to 6, it is characterised in that the magnet and the limiting section table
Face is additionally provided with one layer of injection protective layer.
8. the p-m rotor according to any one of claim 1 to 6, it is characterised in that with the magnet on the armature spindle
Roughening region is formed with by roughening treatment with the position of limiting section contact.
9. a kind of motor, it is characterised in that include the p-m rotor as described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500108.1U CN206077174U (en) | 2016-05-26 | 2016-05-26 | A kind of p-m rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500108.1U CN206077174U (en) | 2016-05-26 | 2016-05-26 | A kind of p-m rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206077174U true CN206077174U (en) | 2017-04-05 |
Family
ID=58420843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620500108.1U Active CN206077174U (en) | 2016-05-26 | 2016-05-26 | A kind of p-m rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206077174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914968A (en) * | 2016-05-26 | 2016-08-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet rotor forming method, permanent magnet rotor and electric machinery |
| WO2019128770A1 (en) * | 2017-12-29 | 2019-07-04 | 成都银河磁体股份有限公司 | Rotor provided with fully-encapsulated magnet |
-
2016
- 2016-05-26 CN CN201620500108.1U patent/CN206077174U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914968A (en) * | 2016-05-26 | 2016-08-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet rotor forming method, permanent magnet rotor and electric machinery |
| WO2019128770A1 (en) * | 2017-12-29 | 2019-07-04 | 成都银河磁体股份有限公司 | Rotor provided with fully-encapsulated magnet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201113592Y (en) | Alternating-current permanent magnetism servo- electric motor hollow shafting rotor | |
| CN206077174U (en) | A kind of p-m rotor and motor | |
| CN105914968A (en) | Permanent magnet rotor forming method, permanent magnet rotor and electric machinery | |
| CN104342878A (en) | Washing machine and limiting method thereof | |
| CN202978480U (en) | Cylindrical magnet steel permanent magnet rotor | |
| CN202475066U (en) | Rotor tangential structure for permanent magnet synchronous motor | |
| CN108494204A (en) | A kind of motor permanent magnet magnetic pole transition structure improving normal direction electromagnetic force | |
| CN205960915U (en) | Double magnetic circuit motor | |
| CN210343824U (en) | Submersible electric pump based on combined seal | |
| CN203942349U (en) | A kind of composite shaft wheel hub motor | |
| CN203800797U (en) | Cylindrical turnplate permanent magnetic coupler | |
| CN202616901U (en) | Rotor of resultant magnetic field | |
| CN202586702U (en) | Cantilever inner rotor type brushless direct-current motor | |
| CN107346930A (en) | High torque density permanent magnetic electric rotating machine | |
| CN204349610U (en) | The reeded rotor of a kind of external diameter | |
| CN205414429U (en) | Permanent magnetism synchronization electric main shaft structure of wedge air gap | |
| CN203984128U (en) | Brushless plastic cement motor | |
| CN104989656B (en) | Without sealing circulating pump | |
| CN203339825U (en) | Direct-current motor used for decorative ceiling fan | |
| CN105790459B (en) | External rotor motor | |
| CN103915978A (en) | Cylindrical rotating plate permanent magnet coupler | |
| CN204156654U (en) | A kind of quiet motor | |
| CN209088650U (en) | A kind of rotor | |
| CN201774426U (en) | Novel stator expanded form brushless DC (direct current) motor | |
| CN201821175U (en) | Stator piece of hub motor of electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |