CN201001057Y - Integrated injection moulding rotor for electric rotor - Google Patents
Integrated injection moulding rotor for electric rotor Download PDFInfo
- Publication number
- CN201001057Y CN201001057Y CNU2007200010507U CN200720001050U CN201001057Y CN 201001057 Y CN201001057 Y CN 201001057Y CN U2007200010507 U CNU2007200010507 U CN U2007200010507U CN 200720001050 U CN200720001050 U CN 200720001050U CN 201001057 Y CN201001057 Y CN 201001057Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- permanent magnetic
- magnetic iron
- axle
- rotor pack
- 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.)
- Expired - Lifetime
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides an integral injection molding rotor used for a motor, which is provided with a permanent magnetic iron arranged in the middle of an independent tooth shape rotor pack composed of two silicon steel sheets, wherein the permanent magnetic iron and the rotor pack are suited on an axle. The utility model is characterized in that a plastic layer is clad outside the permanent magnetic iron and the rotor pack, the plastic layer at the side of the rotor pack is formed into a step-like bearing baffle suited outside the axle, the permanent magnetic iron, the rotor pack and the plastic layer of the inner hole of the bearing baffle have interior screw threads, and the interior screw thread is bolted with a screw thread on the axle. The technical proposal has the advantages that a plastic screw thread structure is adopted, the advantage of the plastic is fully adopted, the longer service life can be obtained through lubricating slightly; the plastic filled in the tooth shape clearance can effectively prevent the burs from producing after being ground by the rotor, thereby the burs is not required to remove, and the processing cost is decreased.
Description
Affiliated technical field
The utility model relates to the improvement to the composite stepper motor structure.
Background technology
Linear stepping motor can be realized by the mode of using hollow built-in thread spindle on traditional electric rotating machine usually.Many raw material can be used for doing thread spindle, compare with metal, and plastics are more suitable, and it only needs to use and lubricatedly just can obtain high useful life on a small quantity.
In some design of electrical motor, magneto especially, because have than air gaps between its stator and rotor, whole axle can be made of plastics, rotor still can run well.
The structure of traditional p-m rotor as shown in Figure 1, its thread spindle 1 ' is exactly that plastics are made.Wherein magnet steel 2 ' can be also can boning of die forming.
The motor of another form has been described as Fig. 2, Fig. 3, it is composite stepper motor, its structure is that a permanent magnetic iron 21 is installed on two independently flute profile rotor pack 22 centres that are made of silicon steel sheet, is installed on simultaneously on the axle 1 again, and rotor pack 22 both sides also have bearing guard 3.The characteristics of this motor are that the air gap between rotor and the stator is less, so threaded shaft should not use whole plastic shaft.Threaded shaft can all machine (not recommending) with metal, perhaps makes bearing guard by metalwork, and injection moulding forms internal thread or the screw thread that will be shaped separately makes up with it again.
In order to make rotor pack 22 1 coaxial with axle, must carry out cylindrical grinding processing to rotor pack 22, because rotor pack 22 cylindricals are tooth-shape structure, the grinding meeting of rotor cylindrical is caused producing between tooth and the tooth burr 221 as Fig. 3, must these burrs of removal.So then increased processing cost.
Summary of the invention
The utility model provides a kind of motor integral molded plastic rotor, and its purpose solves the shortcoming that prior art exists, and provides a kind of cost lower, the stepping motor rotor that the life-span is long.
The technical scheme that its technical problem that solves the utility model adopts is:
Motor integral molded plastic rotor, having a permanent magnetic iron is installed in the middle of two independently flute profile rotor packs that are made of silicon steel sheet, permanent magnetic iron and rotor pack are set on the axle, it is characterized in that: permanent magnetic iron and rotor pack are coated with plastic layer, plastic layer forms the step-like bearing retaining that is set in outside the axle in the rotor pack side, the plastic layer of the endoporus of permanent magnetic iron, rotor pack and bearing guard has internal thread, and internal thread is gone up set screw thread with axle and screwed togather.
The usefulness of technique scheme is: adopt the plastic whorl structure, made full use of the advantage of plastics, only need to use lubricatedly just can obtain high useful life on a small quantity; The plastics that are filled in tooth gaps can prevent the generation of burr effectively after the rotor grinding, therefore do not need deburring, have reduced processing cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a conventional motors construction rotor structure
Fig. 2 is a prior art stepping motor rotor structure
Fig. 3 is the A-A profile after the grinding of Fig. 2 rotor
Fig. 4 is the utility model structure chart
Embodiment
As shown in Figure 4:
The utlity model has a permanent magnetic iron 21 and be installed on two independently flute profile rotor pack 22 centres that constitute by silicon steel sheet, permanent magnetic iron 21 and rotor pack 22 are set on the axle 1, permanent magnetic iron 21 and rotor pack 22 are coated with plastic layer 4, plastic layer 4 forms the step-like bearing retaining 3 that is set in outside the axle 1 in rotor pack 22 sides, the plastic layer of the endoporus of permanent magnetic iron 21, rotor pack 22 and bearing guard 3 has internal thread 5, and the screw thread 6 on internal thread 5 and the axle 1 screws togather.Above-mentioned plastic layer is in the piece surface injection moulding and forms.
Claims (1)
1. motor integral molded plastic rotor, having a permanent magnetic iron is installed in the middle of two independently flute profile rotor packs that are made of silicon steel sheet, permanent magnetic iron and rotor pack are set on the axle, it is characterized in that: permanent magnetic iron and rotor pack are coated with plastic layer, plastic layer forms the step-like bearing retaining that is set in outside the axle in the rotor pack side, the plastic layer of the endoporus of permanent magnetic iron, rotor pack and bearing guard has internal thread, and internal thread is gone up set screw thread with axle and screwed togather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200010507U CN201001057Y (en) | 2007-01-18 | 2007-01-18 | Integrated injection moulding rotor for electric rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200010507U CN201001057Y (en) | 2007-01-18 | 2007-01-18 | Integrated injection moulding rotor for electric rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201001057Y true CN201001057Y (en) | 2008-01-02 |
Family
ID=39015459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200010507U Expired - Lifetime CN201001057Y (en) | 2007-01-18 | 2007-01-18 | Integrated injection moulding rotor for electric rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201001057Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976915A (en) * | 2010-09-19 | 2011-02-16 | 葛明 | Turning-free automatic processing technology of motor rotor after centrifugal casting and device |
| CN103199643A (en) * | 2013-03-05 | 2013-07-10 | 张家港倍恩特磁塑科技有限公司 | Plastic magnetic rotor of DC motor |
| CN109921530A (en) * | 2019-03-19 | 2019-06-21 | 广东威灵汽车部件有限公司 | Rotor, motor, water pump and vehicle |
-
2007
- 2007-01-18 CN CNU2007200010507U patent/CN201001057Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976915A (en) * | 2010-09-19 | 2011-02-16 | 葛明 | Turning-free automatic processing technology of motor rotor after centrifugal casting and device |
| CN101976915B (en) * | 2010-09-19 | 2012-12-05 | 杭州富生电器股份有限公司 | Turning-free automatic processing technology of motor rotor after centrifugal casting and device |
| CN103199643A (en) * | 2013-03-05 | 2013-07-10 | 张家港倍恩特磁塑科技有限公司 | Plastic magnetic rotor of DC motor |
| CN109921530A (en) * | 2019-03-19 | 2019-06-21 | 广东威灵汽车部件有限公司 | Rotor, motor, water pump and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080102 |
|
| EXPY | Termination of patent right or utility model |