CN201893631U - Electric erosion preventing rotor - Google Patents
Electric erosion preventing rotor Download PDFInfo
- Publication number
- CN201893631U CN201893631U CN2010206752127U CN201020675212U CN201893631U CN 201893631 U CN201893631 U CN 201893631U CN 2010206752127 U CN2010206752127 U CN 2010206752127U CN 201020675212 U CN201020675212 U CN 201020675212U CN 201893631 U CN201893631 U CN 201893631U
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- China
- Prior art keywords
- yoke core
- insulation framework
- magnet
- iron core
- location division
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- 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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Abstract
The utility model discloses an electric erosion preventing rotor which relates to a direct current high-voltage plastic-sealed motor rotor. Currently, an electric erosion phenomenon is quite common in the field of direct current plastic-sealed motors: current punctures an oil film and discharges between a ball bearing and an inner ring and an outer ring, so that the local surface of the bearing is molten, spots and pits are formed, and the hardness of the material of the inner ring and the outer ring of the bearing is reduced. The electric erosion preventing rotor comprises a rotating shaft, an iron core which is sleeved on the rotating shaft, and a magnet body which is arranged outside the iron core, and is characterized in that the iron core comprises an inner yoke iron core and an outer yoke iron core which is arranged on the periphery of the inner yoke iron core and is concentric with the same; and an insulation skeleton is arranged between the inner yoke iron core and the outer yoke iron core. According to the technical scheme, the insulation skeleton arranged between the inner yoke iron core and the outer yoke iron core of the rotor cuts off a current loop, so that shaft current is prevented from flowing to the bearing through the rotating shaft, the electric erosion of the bearing is effectively prevented, and the service life of the bearing of a direct current high-voltage plastic-sealed motor is prolonged.
Description
Technical field
The utility model relates to a kind of high direct voltage plastic packaging motor rotor.
Background technology
The galvanic corrosion phenomenon is comparatively general on the direct current plastic packaging motor, galvanic corrosion is caused by current discharge, between the end cap of existing direct current plastic packaging motor and the stator core is insulating material, insulation fully between end cap and the iron core, when stator coil passes through high frequency modulated voltage, because coupling effect, between stator core and metal end, form voltage difference, the end cap formation loop that electric current matches through rotor metal part, bearing enclose, with bearing.Electric current punctures oil film discharge between bearing ball and Internal and external cycle, produce high temperature, causes the fusion of bearing local surfaces, forms spot, pit, causes the hardness of bearing enclose 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 with rear end cap, make both keep equipotential, because of 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 the iron core, can not avoid the generation of galvanic corrosion.
The utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition is that the prior art scheme is improved and improved, and provides a kind of anti-galvanic corrosion rotor, to reach the purpose that effectively prevents galvanic corrosion.For this reason, the utility model is taked following technical scheme.
A kind of anti-galvanic corrosion rotor, comprise rotating shaft, be socketed in iron core in the rotating shaft, be located at the magnet of iron core outward, it is characterized in that: 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, is provided with insulation framework between described interior yoke core and the outer yoke core.The high direct voltage plastic packaging motor is under the energising situation, by being located at the loop of the insulation framework cut-off current between the outer yoke core of yoke core and rotor in the 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 plastic packaging motor.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature.
The yoke core is formed by stacking by yoke core punching in several pieces in described; The punching of yoke core is circular in described, and for being used to wear the through hole of rotating shaft, its excircle is the first insulation framework gulde edge that matches with the insulation framework inner ring in the middle of it, and the first insulation framework gulde edge is provided with several first uniform insulation framework location divisions.The first insulation framework gulde edge of yoke core is provided with several first uniform insulation framework location divisions in the rotor, inject the thermoplastic insulation material between interior yoke core and the outer yoke core and form insulation framework, yoke core and insulation framework closely link together in making, prevent that insulation framework from taking place axially or move radially, with the firm predeterminated position on the yoke core outward of yoke core and rotor in the rotor that is positioned at of insulation framework.
The described first insulation framework location division evagination is in the first insulation framework gulde edge.
The described first insulation framework location division indent is in the first insulation framework gulde edge.
The described first insulation framework location division quantity is 3～6.To guarantee the connection reliability of insulation framework and interior yoke core.
Described outer yoke core is formed by stacking by several pieces outer yoke core punchings; The punching of described outer yoke core is circular, is the insulated hole of diameter greater than interior yoke core external diameter in the middle of it, and its excircle is the magnet gulde edge that matches with magnet; The insulation hole wall is provided with several second uniform insulation framework location divisions, and the magnet gulde edge is provided with several uniform magnet location divisions, and described magnet location division concave or convex is in the magnet gulde edge.The insulated hole of the outer yoke core of rotor is established the second insulation framework location division, after injecting the thermoplastic insulation material between the outer yoke core of yoke core and rotor in treating, interior yoke core, outer yoke core, insulation framework three closely link together, prevent to take place to each other axially or move radially, with the firm predeterminated position on the yoke core outward of yoke core and rotor in the rotor that is positioned at of insulation framework.
The second insulation framework location division of described outer yoke core punching is identical with magnet location division quantity and the position is relative, and the second insulation framework location division evagination is in the insulation hole wall, and magnet location division indent is in the magnet gulde edge.Magnet location division indent can reduce the consumption of sheet material in the magnet gulde edge, and makes things convenient for punching press; The second insulation framework location division is identical with magnet location division quantity and the position is relative, and the width of outer yoke core punching is remained unchanged, and not because of the magnet location division of establishing indent reduces intensity, prevents that stress is concentrated.
The first insulation framework location division of interior yoke core punching is with relative with the outer yoke core punching second insulation framework location division of layer, and the outer yoke core punching first insulation framework location division dislocation of adjacent layer stacks.Moving axially of yoke core punching in avoiding, the punching of interior yoke core.
Described magnet covers in the outer circumference surface of outer yoke core and reaches both ends of the surface up and down.
Beneficial effect.
1) outside reaching, interior yoke core establishes insulation framework between the yoke core, insulation framework is blocked the loop of shaft current, prevent that shaft current from flowing to bearing by rotating shaft, effectively prevent the bearing galvanic corrosion, improved the bearing useful life of high direct voltage plastic packaging motor, avoided causing to be electrically connected the phenomenon that produces electric current between end cap and the iron core because of there is insulating material in the contact pin end.
2) the outer yoke core of punching of yoke core and rotor is established first, second insulation framework fixed part in the rotor, effectively prevents to take place axially with insulation framework between interior yoke core of rotor and the outer yoke core of rotor or move radially.
3) the magnet location division is established in the punching of outer yoke core, effectively prevents to take place between magnet and outer yoke core axially or move radially.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the profile of A-A among Fig. 1.
Fig. 3 is a yoke core punching structural representation in the utility model.
Fig. 4 is the outer yoke core punching structural representation of the utility model.
Among the figure: 1. magnet; 2. outer yoke core; 201. outer yoke core punching; 202. insulated hole; 203. the second insulation location division; 204. magnet gulde edge; 205. magnet location division; 3. insulation framework; 4. interior yoke core; 401. the punching of interior yoke core, 402. first insulation framework gulde edges; 403. the first insulation framework location division; 5. back-up ring; 6. bearing; 7. rotating shaft.
Embodiment
Below in conjunction with Figure of description the technical solution of the utility model is described in further detail.
Embodiment one.
As shown in Figure 1, 2, the utility model comprises rotating shaft 7, be socketed in iron core in the rotating shaft 7, be located at the magnet 1 of iron core outward, in iron core comprises yoke core 4 and be located in the outer yoke core 2 concentric of yoke core 4 peripheries with interior yoke core 4, be provided with insulation framework 3 between interior yoke core 4 and the outer yoke core 2.Interior yoke core 4 is formed by stacking by yoke core punching 401 in several pieces; Outer yoke core 2 is formed by stacking by several pieces outer yoke core punchings 201; The first insulation framework location division 403 of interior yoke core punching 401 is with relative with the outer yoke core punching 201 second insulation framework location divisions 203 of layer.Magnet 1 covers in the outer circumference surface of outer yoke core 2 and reaches both ends of the surface up and down.
As shown in Figure 3, interior yoke core punching 401 is circular, it in the middle of it through hole that is used to wear rotating shaft 7, its excircle is the first insulation framework gulde edge 402 that matches with insulation framework 3 inner rings, the first insulation framework gulde edge 402 is provided with 4 first uniform insulation framework location divisions 403, and these first insulation framework location division, 403 indents form inner groovy in the first insulation framework gulde edge 402.
As shown in Figure 4, outer yoke core punching 201 is circular, is the insulated hole 202 of diameter greater than interior yoke core external diameter in the middle of it, and its excircle is the magnet gulde edge 204 that matches with magnet 1; Insulated hole 202 walls are provided with several second uniform insulation framework location divisions 203, and magnet gulde edge 204 is provided with several uniform magnet location divisions 205, and magnet location division 205 indents are in magnet gulde edge 204.The second insulation framework location division 203 of outer yoke core punching 201 is identical with magnet location division 205 quantity, and to be 4 and position relative, and the second insulation framework location division, 203 evaginations are in insulated hole 202 walls, and magnet location division 205 indents are in magnet gulde edge 204.Outer yoke core punching 201 first insulation framework location divisions, 403 dislocation of adjacent layer stack.
Production method of the present utility model is characterized in that it may further comprise the steps.
1) inside and outside yoke core punching 401,201 punch steps become to have the inner and outer annular yoke core punching 401,201 of location division with plate stamping.
2) yoke core 4, outer yoke core 2 in lamination step, inside and outside yoke core punching 401,201 laminate automatically and form.
3) the one iron core forms step, and interior yoke core 4 and outer yoke core 2 are put into mould; In mould, charge into the thermoplastic high temperature insulating material, high temperature insulating material flowed between inside and outside yoke core 4 and 2, treat its cooling after, form insulation framework 3, the iron core that yoke core 4 and outer yoke core 2 are combined into one in making simultaneously.
4) magnet 1 injection step is put into mould with the iron core that is combined into one, with outer wall and the two ends of magnet 1 injection moulding to outer yoke core 2.
5) rotor installation step with magnet 1 cooling, demagnetization, is pressed into iron core endoporus and fixing with rotating shaft 7, and axle 7 two ends press-fit back-up ring 5, with press bearing 6 are pressed onto in the rotating shaft 7 again, finish the assembling of rotor.
6) step that magnetizes magnetizes to the magnet 1 of rotor, so far finishes the processing of rotor.
Embodiment two: repeat no more with embodiment one something in common.Difference is: outer yoke core punching 201 first insulation framework location divisions, 403 alignment of adjacent layer stack.
Embodiment three: the first insulation framework gulde edge 402 of interior yoke core punching 401 is provided with 5 first uniform insulation framework location divisions 403, and these first insulation framework location division, 403 evaginations form salient point in the first insulation framework gulde edge 402; Insulated hole 202 walls of outer yoke core punching 201 are provided with 4 second uniform insulation framework location divisions 203, the second insulation framework location division, 203 indents form groove in insulated hole 202 walls, the magnet gulde edge 204 of outer yoke core punching 201 is provided with 4 uniform magnet location divisions 205, and magnet location division 205 evaginations are in magnet gulde edge 204.
Embodiment four: the first insulation framework location division 403 and the second insulation framework location division 203 of interior yoke core punching 401 are staggeredly located, number can be identical also can be different.
A kind of anti-galvanic corrosion rotor shown in above Fig. 1-4 is a specific embodiment of the utility model; the utility model substantive distinguishing features and progress have been embodied; can be according to the use needs of reality; under enlightenment of the present utility model; it is carried out the equivalent modifications of aspects such as shape, structure, all at the row of the protection range of this programme.
A kind of anti-galvanic corrosion rotor relates to a kind of high direct voltage plastic packaging motor rotor.The galvanic corrosion phenomenon is comparatively general on the direct current plastic packaging motor at present, and electric current punctures the oil film discharge between bearing ball and Internal and external cycle, produce high temperature, causes the fusion of bearing local surfaces, forms spot, pit, causes the hardness of bearing enclose material to descend.The utility model comprises rotating shaft, be socketed in iron core in the rotating shaft, be located at the magnet of iron core outward, it is characterized in that: 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, is provided with insulation framework between described interior yoke core and the outer yoke core.The technical program prevents that shaft current from flowing to bearing by rotating shaft, thereby effectively prevents the bearing galvanic corrosion by being located at the loop of the insulation framework cut-off current between the outer yoke core of yoke core and rotor in the rotor, improved the bearing useful life of high direct voltage plastic packaging motor.
Claims (9)
1. anti-galvanic corrosion rotor, comprise rotating shaft (7), be socketed in iron core in the rotating shaft (7), be located at the magnet (1) of iron core outward, it is characterized in that: described iron core comprises interior yoke core (4) and is located at the outer yoke core (2) concentric with interior yoke core (4) of interior yoke core (4) periphery, is provided with insulation framework (3) between described interior yoke core (4) and the outer yoke core (2).
2. a kind of anti-galvanic corrosion rotor according to claim 1 is characterized in that: yoke core (4) is formed by stacking automatically by yoke core punching (401) in several pieces in described; Yoke core punching (401) is circular in described, it in the middle of it through hole that is used to wear rotating shaft (7), its excircle is the first insulation framework gulde edge (402) that matches with insulation framework (3) inner ring, and the first insulation framework gulde edge (402) is provided with several first uniform insulation framework location divisions (403).
3. a kind of anti-galvanic corrosion rotor according to claim 2 is characterized in that: described first insulation framework location division (403) evagination is in the first insulation framework gulde edge (402).
4. a kind of anti-galvanic corrosion rotor according to claim 2 is characterized in that: described first insulation framework location division (403) indent is in the first insulation framework gulde edge (402).
5. a kind of anti-galvanic corrosion rotor according to claim 2 is characterized in that: described first insulation framework location division (403) quantity is 3～6.
6. according to the described a kind of anti-galvanic corrosion rotor of the arbitrary claim of claim 2～5, it is characterized in that: described outer yoke core (2) is formed by stacking automatically by several pieces outer yoke core punchings (201); Described outer yoke core punching (201) is circular, is the insulated hole (202) of diameter greater than interior yoke core external diameter in the middle of it, and its excircle is the magnet gulde edge (204) that matches with magnet (1); Insulated hole (202) wall is provided with several second uniform insulation framework location divisions (203), and magnet gulde edge (204) is provided with several uniform magnet location divisions (205), and described magnet location division (205) concave or convex is in magnet gulde edge (204).
7. a kind of anti-galvanic corrosion rotor according to claim 6, it is characterized in that: the second insulation framework location division (203) of described outer yoke core punching (201) is identical with magnet location division (205) quantity and the position is relative, second insulation framework location division (203) evagination is in insulated hole (202) wall, and magnet location division (205) indent is in magnet gulde edge (204).
8. a kind of anti-galvanic corrosion rotor according to claim 7, it is characterized in that: the first insulation framework location division (403) of interior yoke core punching (401) is with relative with outer yoke core punching (201) the second insulation framework location divisions (203) of layer, and outer yoke core punching (201) first insulation framework location divisions (403) dislocation of adjacent layer stacks.
9. a kind of anti-galvanic corrosion rotor according to claim 1 is characterized in that: described magnet (1) covers in the outer circumference surface of outer yoke core (2) and reaches both ends of the surface up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206752127U CN201893631U (en) | 2010-12-22 | 2010-12-22 | Electric erosion preventing rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206752127U CN201893631U (en) | 2010-12-22 | 2010-12-22 | Electric erosion preventing rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201893631U true CN201893631U (en) | 2011-07-06 |
Family
ID=44223100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206752127U Expired - Lifetime CN201893631U (en) | 2010-12-22 | 2010-12-22 | Electric erosion preventing rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201893631U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106787311A (en) * | 2016-11-24 | 2017-05-31 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN110544998A (en) * | 2014-06-13 | 2019-12-06 | Lg 伊诺特有限公司 | Rotor assembly, motor and dual clutch transmission |
-
2010
- 2010-12-22 CN CN2010206752127U patent/CN201893631U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102570658B (en) * | 2010-12-22 | 2015-04-01 | 卧龙电气集团股份有限公司 | Electric corrosion prevention rotor and production method thereof |
| CN110544998A (en) * | 2014-06-13 | 2019-12-06 | Lg 伊诺特有限公司 | Rotor assembly, motor and dual clutch transmission |
| CN106787311A (en) * | 2016-11-24 | 2017-05-31 | 广东威灵电机制造有限公司 | Rotor and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee after: Zhejiang Wolong Household Electric Machinery Co., Ltd. Patentee after: Wolong Electric Drive Group Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee before: Zhejiang Wolong Household Electric Machinery Co., Ltd. Patentee before: Wolong Electric Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |