CN103178630A - Direct-current high-voltage motor rotor structure - Google Patents
Direct-current high-voltage motor rotor structure Download PDFInfo
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- CN103178630A CN103178630A CN2013100526296A CN201310052629A CN103178630A CN 103178630 A CN103178630 A CN 103178630A CN 2013100526296 A CN2013100526296 A CN 2013100526296A CN 201310052629 A CN201310052629 A CN 201310052629A CN 103178630 A CN103178630 A CN 103178630A
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- iron core
- yoke core
- rotation axis
- rotor structure
- bearing
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a direct-current high-voltage motor rotor structure. The direct-current high-voltage motor rotor structure comprises a rotating shaft, a plastic magnetic ring, a bearing, an iron core and a magnet, wherein the plastic magnetic ring and the bearing are mounted on the rotating shaft, the iron core is sleeved on the rotating shaft, the magnet is externally arranged on the iron core, the iron core comprises an inner yoke iron core and an outer yoke iron core arranged on the periphery of the inner yoke iron core and concentric with the inner yoke iron core, an insulating framework is arranged between the inner yoke iron core and the outer yoke iron core, a positioning convex rib is arranged on the rotating shaft and at the position where the plastic magnetic ring is mounted, the plastic magnetic ring is adhered to the rotating shaft, and the front end face of the plastic magnetic ring is in matched connection with a stop ring. The plastic magnetic ring can be firmly fixed on the rotating shaft, so that the stop ring for limiting the bearing is omitted, and production cost is reduced; via an interruption current loop of the insulating framework arranged between the inner yoke iron core and the outer yoke iron core, shaft current is prevented from flowing to the bearing via the rotating shaft, so that electric corrosion of the bearing is effectively avoided, and service life of the bearing of a direct-current high-voltage motor is prolonged.
Description
Technical field
The present invention relates to a kind of high direct voltage rotor structure.
Background technology
The existing magnet ring that is nested with on rotor is the sintering magnet ring, this type of magnet ring poor ductility, more crisp, and the rotation axis surfacing of rotor, smooth, generally with glue, the sintering magnet ring is fixed on rotation axis, the front and back end of sintering magnet ring arranges respectively back-up ring and carries out spacing to the bearing at sintering magnet ring and its rear portion.Due to the rotation axis surfacing, if the glue imperfect bonding easily causes the sintering magnet ring to be offset, affect motor performance.Back-up ring has all been installed at the two ends of sintering magnet ring, causes production cost too high in high volume production process.And it is comparatively general that motor produces the galvanic corrosion phenomenon, galvanic corrosion is caused by current discharge, be insulating material between the end cap of existing motor and stator core, insulation fully between end cap and iron core, when stator coil passes through high frequency modulated voltage, due to coupling effect, form voltage difference between stator core and metal end, the end cap that electric current matches through rotor metal part, bearing enclose, with bearing forms the loop.Electric current punctures oil film discharge between bearing ball and Internal and external cycle, produce high temperature, causes the melting of bearing local surfaces, forms spot, pit, causes the hardness of bearing internal external loop material to descend, and enhance faster wear speed produces noise, has shortened bearing useful life.Generation for fear of the galvanic corrosion situation, adopt contact pin that stator core is electrically connected to rear end cap, make both keep equipotential, because iron core exists processing and rigging error, and the mould pin holes degree of depth is fixed, when the spacing of contact pin length less than iron core and end cap, when the stator plastic packaging, insulating material enters in the gap of contact pin and iron core and end cap, can't pass through the contact pin conducting between end cap and iron core, can not avoid the generation of galvanic corrosion.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high direct voltage rotor structure, can reach the purpose that effectively prevents galvanic corrosion, and magnet ring and rotation axis are fixing reliable, and cost is low, the life-span is long.
for solving technique scheme, the present invention adopts following technical scheme: a kind of high direct voltage rotor structure, comprise rotation axis, and be arranged on plastics magnet ring and bearing on rotation axis, and be socketed in iron core on rotation axis, be located at the magnet of iron core outward, described iron core comprises interior yoke core and is located at the outer yoke core concentric with interior yoke core of interior yoke core periphery, be provided with insulation framework between described interior yoke core and outer yoke core, the position that described rotation axis is installed the plastics magnet ring is provided with the location convex tendon, described plastics magnet ring and rotation axis bonding, the front end face of described plastics magnet ring is connected with back-up ring.
Described interior yoke core is formed by stacking automatically by yoke core punching in several pieces, and the punching of described interior yoke core is circular, is the through hole that is used for wearing rotation axis in the middle of it.
Described outer yoke core is formed by stacking automatically by several pieces outer yoke core punchings, and the punching of described outer yoke core is circular, is that diameter is greater than the insulated hole of interior yoke core external diameter in the middle of it.
The formation direction of described location convex tendon is axial consistent with rotation axis.
Described location convex tendon is that continuous type location convex tendon or discontinuous form are located convex tendon.
Described plastics magnet ring and rotation axis bond with glue.
Described magnet covers in the excircle of outer yoke core and up and down both ends of the surface.
The invention has the beneficial effects as follows:
Can be fixed on rotation axis the plastics magnet ring is firm, saved and be used for bearing is carried out spacing back-up ring, reduced production cost; And by being located at the loop of the insulation framework cut-off current between the outer yoke core of yoke core and rotor in rotor, prevent that shaft current from flowing to bearing by rotating shaft, thereby effectively prevent the bearing galvanic corrosion, improved the bearing useful life of high direct voltage motor.
Description of drawings
In order to be easy to explanation, the present invention is done to describe in detail by following specific embodiment and accompanying drawing.
Fig. 1 is the structural representation of high direct voltage rotor structure;
Fig. 2 is the profile of A-A in Fig. 1.
Embodiment
see also illustrated in figures 1 and 2, a kind of high direct voltage rotor structure of the present invention, comprise rotation axis 1, and be arranged on plastics magnet ring 2 and bearing 3 on rotation axis 1, and be socketed in iron core on rotation axis 1, be located at the magnet 4 of iron core outward, described iron core comprises interior yoke core 5 and is located at the outer yoke core 6 concentric with interior yoke core 5 of interior yoke core 5 peripheries, be provided with insulation framework 7 between described interior yoke core 5 and outer yoke core 6, the position that described rotation axis 1 is installed plastics magnet ring 2 is provided with location convex tendon (not shown), described plastics magnet ring 2 and rotation axis 1 bonding, the front end face of described plastics magnet ring 2 is connected with back-up ring 8.
Described interior yoke core 5 is formed by stacking automatically by yoke core punching 11 in several pieces, and described interior yoke core punching 11 is circular, is the through hole 10 that is used for wearing rotation axis 1 in the middle of it.
Described outer yoke core 6 is formed by stacking automatically by several pieces outer yoke core punchings 12, and described outer yoke core punching 12 is circular, is that diameter is greater than the insulated hole of interior yoke core 5 external diameters in the middle of it.
The formation direction of described location convex tendon is axial consistent with rotation axis 1.
Described location convex tendon is that continuous type is located convex tendon.
Described plastics magnet ring 2 bonds with rotation axis 1 use glue.
Described magnet 4 covers in the excircle of outer yoke core 6 and up and down both ends of the surface.
The invention has the beneficial effects as follows:
Can be fixed on rotation axis the plastics magnet ring is firm, saved and be used for bearing is carried out spacing back-up ring, reduced production cost; And by being located at the loop of the insulation framework cut-off current between the outer yoke core of yoke core and rotor in rotor, prevent that shaft current from flowing to bearing by rotating shaft, thereby effectively prevent the bearing galvanic corrosion, improved the bearing useful life of high direct voltage motor.
The above be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, and any variation or replacement of expecting without creative work is within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range that claims were limited.
Claims (7)
1. high direct voltage rotor structure, it is characterized in that: comprise rotation axis, and be arranged on plastics magnet ring and bearing on rotation axis, and be socketed in iron core on rotation axis, be located at the magnet of iron core outward, described iron core comprises interior yoke core and is located at the outer yoke core concentric with interior yoke core of interior yoke core periphery, be provided with insulation framework between described interior yoke core and outer yoke core, the position that described rotation axis is installed the plastics magnet ring is provided with the location convex tendon, described plastics magnet ring and rotation axis bonding, the front end face of described plastics magnet ring is connected with back-up ring.
2. high direct voltage rotor structure according to claim 1, it is characterized in that: described interior yoke core is formed by stacking automatically by yoke core punching in several pieces, and the punching of described interior yoke core is circular, in the middle of it for being used for wearing the through hole of rotation axis.
3. high direct voltage rotor structure according to claim 1, it is characterized in that: described outer yoke core is formed by stacking automatically by several pieces outer yoke core punchings, the punching of described outer yoke core is circular, is that diameter is greater than the insulated hole of interior yoke core external diameter in the middle of it.
4. high direct voltage rotor structure according to claim 1, it is characterized in that: the formation direction of described location convex tendon is axial consistent with rotation axis.
5. high direct voltage rotor structure according to claim 1 is characterized in that: described location convex tendon is continuous type location convex tendon or discontinuous form location convex tendon.
6. high direct voltage rotor structure according to claim 1, it is characterized in that: described plastics magnet ring and rotation axis bond with glue.
7. high direct voltage rotor structure according to claim 1 is characterized in that: described magnet covers in the excircle of outer yoke core and up and down both ends of the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100526296A CN103178630A (en) | 2013-02-07 | 2013-02-07 | Direct-current high-voltage motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100526296A CN103178630A (en) | 2013-02-07 | 2013-02-07 | Direct-current high-voltage motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103178630A true CN103178630A (en) | 2013-06-26 |
Family
ID=48638306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100526296A Pending CN103178630A (en) | 2013-02-07 | 2013-02-07 | Direct-current high-voltage motor rotor structure |
Country Status (1)
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| CN (1) | CN103178630A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855828A (en) * | 2014-03-03 | 2014-06-11 | 常州奥立思特电子有限公司 | Permanent-magnet direct-current brushless motor rotor structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010158152A (en) * | 2008-12-03 | 2010-07-15 | Panasonic Corp | Motor and electrical apparatus having the same |
| CN201549954U (en) * | 2009-11-17 | 2010-08-11 | 卧龙电气集团股份有限公司 | Magnetic ring fixing structure of motor rotor |
| CN102570658A (en) * | 2010-12-22 | 2012-07-11 | 卧龙电气集团股份有限公司 | Electric corrosion prevention rotor and production method thereof |
-
2013
- 2013-02-07 CN CN2013100526296A patent/CN103178630A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010158152A (en) * | 2008-12-03 | 2010-07-15 | Panasonic Corp | Motor and electrical apparatus having the same |
| CN201549954U (en) * | 2009-11-17 | 2010-08-11 | 卧龙电气集团股份有限公司 | Magnetic ring fixing structure of motor rotor |
| CN102570658A (en) * | 2010-12-22 | 2012-07-11 | 卧龙电气集团股份有限公司 | Electric corrosion prevention rotor and production method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855828A (en) * | 2014-03-03 | 2014-06-11 | 常州奥立思特电子有限公司 | Permanent-magnet direct-current brushless motor rotor structure |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |