CN102318170A - Method for removing an electrically insulating powder layered on a stator core, device for performing the method, and electric machine having a stator core - Google Patents
Method for removing an electrically insulating powder layered on a stator core, device for performing the method, and electric machine having a stator core Download PDFInfo
- Publication number
- CN102318170A CN102318170A CN2009801568438A CN200980156843A CN102318170A CN 102318170 A CN102318170 A CN 102318170A CN 2009801568438 A CN2009801568438 A CN 2009801568438A CN 200980156843 A CN200980156843 A CN 200980156843A CN 102318170 A CN102318170 A CN 102318170A
- Authority
- CN
- China
- Prior art keywords
- powder
- stator core
- described method
- radially inside
- central opening
- 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.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 8
- 238000007790 scraping Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a method for removing an electrically insulating powder () layered on a stator core (17), wherein the stator core (17) comprises teeth (69) directed radially inward and grooves (72) open radially inward, and the teeth (69) directed radially inward each comprise a surface (75) directed radially inward in order to form a central opening (78) of the stator core (17), and said surface (75) is coated with the powder (81) in a method state (Z1), wherein in a subsequent step (S1), the powder is removed from said surface (75) and is then contained, characterized in that the powder (81) is contained outside the central opening (78) of the stator core (17). The invention further relates to the device for performing the method and an electric machine having a stator core (17) manufactured according to the invention.
Description
Technical field
The present invention relates to a kind of be used to the remove method at the electric insulation powder of stator core overlying strata, a kind of device and a kind of motor that is used to carry out said method with stator core.
Background technology
By US 6,856, the known a kind of method and apparatus of 052 B2 can be realized a kind of stator core with powder coating through this method.Wherein defective is, how to transmit the type and the mode of stator core.Delivery roll disclosed herein and stator teeth reciprocation produce vibration when causing the stator core rotation.This vibration can cause more maybe uneven coating thickness.
Summary of the invention
Through can making the powders that comes off according to the method for the invention outside stator core, rather than accumulate in the groove of for example stator core, thereby cause uneven coating thickness.
Description of drawings
According to accompanying drawing the present invention is set forth.In the accompanying drawing:
Fig. 1 shows the cross-sectional view of motor,
Fig. 2 shows the space view of stator core,
Fig. 3 shows and is used to remove the schematic method at the electric insulation powder of stator core overlying strata,
Fig. 4 shows first embodiment according to the method for the invention,
Fig. 5 shows according to a second embodiment of the method according to the invention,
Fig. 6 shows according to a third embodiment of the method according to the invention,
Fig. 7 shows the 4th embodiment according to the method for the invention,
Fig. 8 shows first embodiment according to device of the present invention,
Fig. 9 shows second embodiment according to device of the present invention.
Embodiment
Fig. 1 shows the cross-sectional view of motor 10, is implemented as the generator that is used for motor vehicles or alternating current generator, particularly threephase alternator or rather at this motor 10.This motor 10 especially has the housing 13 of a two-piece type, and this housing is made up of clutch shaft bearing lid 13.1 and second bearing cap 13.2.Said bearing cap 13.1 is contained in so-called stator 16 wherein with said bearing cap 13.2; This stator is made up of the stator core that is annular basically 17 on the one hand, and in the embedding in radially inner side, the groove that extends vertically of said stator stator winding 18 is arranged.This annular stator 16 surrounds rotor 20 with the surface of its radially inside fluting, and this rotor is constructed to pawl utmost point rotor.Said rotor 20 especially is made up of two pawl pole plates 22 and 23, and the pawl utmost point that each setting is extended vertically on the periphery of these pawl pole plates refers to 24 and 25.Two pawl pole plates 22 and 23 are set in the rotor 20, make their the pawl utmost point that extends vertically refer to that 24 and 25 replace each other on the circumference of rotor 20.Refer to produce between 24 and 25 the gap of needs on the magnetic thus at the pawl utmost point of magnetic reversal, this gap is called as the pawl clearance between poles.Said rotor 20 is respectively established one rolling bearing 28 and is rotatably supported in corresponding bearing cap 13.1 and 13.2 by means of an axle 27 with in the rotor both sides.
In Fig. 1 the right side be over cap 47, each various parts of this over cap protection is avoided ectocine.Therefore, this over cap 47 for example covers so-called slip ring assembly 49, and this slip ring assembly is used for exciting current to magnet exciting coil 51 being provided.Be provided with cooling body 53 around this contact ring assembly 49, this cooling body plays positive cooling body here.Bearing cap 13.2 plays so-called negative cooling body.Between bearing cap 13.2 and cooling body 53, be provided with terminal block 56, this terminal block is used for that a plurality of negative diodes that are arranged on bearing cap 13.2 58 and this are in this accompanying drawing unshowned a plurality of positive diode in cooling body 53 and is connected to each other and forms well-known bridge circuit thus.
Fig. 2 shows in the stator core 17 of inserting before stator winding 18.Show two end face 60 and 63, cylindrical outer surfaces 66 of deviating from each other of z (central axis of cylinder annular matrix) vertically.In addition, also show radially inside tooth 69 and radially to the groove 72 of inner opening.Radially inside tooth 69 has a radially inside surface 75 respectively.These surfaces 75 constitute the roughly rounded central opening 78 of stator core 17.These grooves 72 and end face 60 and 63 by powder 81 coating with electric insulation.This powder 81 is used for protecting the stator winding 18 of embedding to avoid electrically contacting and avoiding thus with the electric conducting material of stator core 17 short circuit of stator winding 18 behind hardening process.
To surperficial 75 coating is undesirable, because this does not need on the one hand technically, this also is nonsensical on the other hand, because coating can make the gap between rotor 20 and the stator 16 become big and then efficiency of motor is worsened.Powder 81 at first must be applied on the surface 75 of surface, tooth of end face 60 and 63, groove 72 through electrostatic methods, and is applied in especially on the surface 75 (method state Z1).According to Fig. 3 a kind of method (step S1) at the electric insulation powder 81 of stator core 16 overlying stratas that is used to remove is proposed.
According to Fig. 4, stator core 17 is maintained in the holding device 84 herein.Brush 87 and/or scraping blade lip 90 (wiping arrangement) are through removing attached to the powder 81 on the surface 75 along central opening 78 rotations.Powder 81 is because action of gravity falls and falls into gatherer 93 in the outside of central opening 78 from central opening 78, and gatherer described herein is the bowl 96 that is set directly at central opening 78 belows.Thus, removed powder 81 is received in the outside of central opening 78.
According to another embodiment with reference to Fig. 5, stator core 17 also is to be maintained in the holding device 84.Brush 87 (brush devices; Alternative or auxiliary by scraping blade lip 90) remove attached to the powder 81 on the surface 75 through rotation with respect to central opening 78.Powder 81 falls into central opening 78 through action of gravity and is received by aspirator 99 (correspondingly illustrating with two pipes 102 herein).The mass flow of the powder of representing with the Reference numeral m of an expression to be aspirated 81.
In the embodiment according to Fig. 6, aspirator 99 illustrates with two relatively large pipes 105 of size.Said pipe 105 sucks the powder of being removed by brush 87 (alternative or auxiliary by scraping blade lip 90) 81 by the opening 108 (inlet) of annular.The opening 108 of annular is the edge of contiguous central opening 78 herein, thereby more is adjacent to surface 75 with respect to the proximity with central axis z.
According to the embodiment with reference to Fig. 7, powder 81 114 is removed from surface 75 by the generating means 111 and flow through this produced of flowing.
During this method, stator core 17 is maintained in the holding device 84.Herein, it is fixed-site that holding device 84 can be designed to it, and makes brush 87 and/or scraping blade lip 90 slide through surface, rotation edge 75.Instead, this holding device 84 also can with stator core 17 rotate and brush 87 and/or scraping blade lip 90 fixed-site ground 75 slide along the surface.
As the replacement according to the execution mode of Fig. 4, axis z also can tilt, and stator core likewise 17 or brush or wiping arrangement 75 slide along the surface.Rotational stator unshakable in one's determination 17 is favourable, because can realize the better distribution of powder 81 thus.
After powder 81 is removed on surface 75, make powder melts also subsequently through hardening by cooling by means of heater.
In Fig. 8 a to Fig. 8 d, very schematically show the entire method flow process: at first stator core 17 is installed in the holding device 84 Fig. 8 a.Stator core 17 is fixed in the holding device 84 by clamping force F under the situation of needs, Fig. 8 b.Powder dish 114 is lifted as the part of cladding apparatus 115 and passes central opening 78.Herein, between powder 81 on the dish and stator core 17, have electrostatic field, this causes powder 81 to be deposited on the surface of stator core 17.According to Fig. 8 c, the surface 75 of tooth 69 is cleaned and powders away 81, makes powder 81 sclerosis of staying in the stator core 17, Fig. 8 d by heater 117 subsequently.
Thus; Fig. 8 a to Fig. 8 d shows the device that is used to carry out said method; This device has the holding device 84 that is used to keep stator core 17; Wherein stator core 17 has radially inside tooth 69 and radially to the groove 72 of inner opening, and radially inside tooth 69 has radially inside surface 75 respectively, is used to constitute the central opening 78 of stator core 17; This device also has and is used for powder 81 is layed onto cladding apparatus 115 in the stator core 17, is used for from radially inside surface 75 and removes the device of powder 81 and be used to receive the device of removed powder 81; The wherein said device (gatherer 93, aspirator 99) that is used to receive removed powder 81 is arranged on the outside of central opening 78.
According to Fig. 9, lifting apparatus can be with powder dish 114 and together lifting and reduction of bowl 96.Therefore saved the time-consuming motion of stator core 17 from a position to next position.Powder dish 114 mechanically connects each other with bowl 96 and can be through connecting motion simultaneously.
At last, a kind of motor 10 is provided, the stator core 17 of this motor is made under the situation of considering aforementioned method steps and the said device of use.
Claims (13)
1. one kind is used for removing the method at the electric insulation powder () of stator core (17) overlying strata; Wherein said stator core (17) has radially inside tooth (69) and radially to the groove (72) of inner opening; And said radially inside tooth (69) has radially inside surface (75) respectively; Be used to constitute the central opening (78) of said stator core (17); And said surface (75) in a kind of method state (Z1) by said powder (81) coating; Wherein in step (S1) subsequently, said powder is received said powder from this surface (75) removal and after this, it is characterized in that said powder (81) is received in the outside of the central opening (78) of said stator core (17).
2. according to the described method of claim 1, it is characterized in that removed said powder (81) falls into gatherer (93).
3. according to the described method of claim 1, it is characterized in that removed said powder (81) is received by aspirator (99).
4. according to the described method of claim 3, it is characterized in that said aspirator (99) has at least one inlet, said inlet sucks powder (81) in the zone away from central axis (z).
5. according to the described method of claim 4, it is characterized in that said aspirator (99) has the inlet of annular.
6. according to each described method in the aforementioned claim, it is characterized in that, by wiping arrangement said powder (81) is gone up wiping from said surface (75) and get off.
7. according to each described method in the claim 1 to 5, it is characterized in that, said powder (81) is brushed down from said surface (75) by brush device.
8. according to each described method in the claim 1 to 5, it is characterized in that, through stream (114) said powder (81) is removed from said surface (75) by mobile generating means (111).
9. according to each described method in the aforementioned claim, it is characterized in that said stator core (17) is maintained in the holding device (84).
10. according to each described method in the aforementioned claim, it is characterized in that, with said powder (81) after remove said surface (75), make said stator core (17) fusion and with after-hardening through heater.
11. one kind is used for carrying out the device according to aforementioned each said method of claim; Has the holding device (84) that is used to keep said stator core (17); Wherein said stator core (17) has radially inside tooth (69) and radially to the groove (72) of inner opening; Said radially inside tooth (69) has radially inside surface (75) respectively, is used to constitute the central opening (78) of said stator core (17); Said device also has and is used for said powder (81) is applied to the cladding apparatus (115) in the said stator core (17) and is used for removing the device of said powder (81) from radially inside said surface (75) and is used to receive the device of removed said powder (81); It is characterized in that the said device that is used to receive removed said powder (81) is set at the outside of said central opening (78).
12., it is characterized in that powder dish (114) and dish shape piece (96) mechanically connect each other and can be through connecting motion simultaneously according to the described device of claim 12.
13. a motor has under the situation of each described method in considering according to aforementioned claim 1 to 11, the stator core of preferably in considering to use according to claim 12 or 13, making under the situation of each described device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008054810.3 | 2008-12-17 | ||
| DE102008054810A DE102008054810A1 (en) | 2008-12-17 | 2008-12-17 | Method for removing an electrically insulating powder layered on a stator iron, device for carrying out the method and electric machine with a stator iron |
| PCT/EP2009/067169 WO2010069948A2 (en) | 2008-12-17 | 2009-12-15 | Method for removing an electrically insulating powder layered on a stator core, device for performing the method, and electric machine having a stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102318170A true CN102318170A (en) | 2012-01-11 |
Family
ID=42193913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801568438A Pending CN102318170A (en) | 2008-12-17 | 2009-12-15 | Method for removing an electrically insulating powder layered on a stator core, device for performing the method, and electric machine having a stator core |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2380263A2 (en) |
| CN (1) | CN102318170A (en) |
| BR (1) | BRPI0923044A2 (en) |
| DE (1) | DE102008054810A1 (en) |
| WO (1) | WO2010069948A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036976A (en) * | 2021-03-04 | 2021-06-25 | 卓尔博（宁波）精密机电股份有限公司 | High-insulativity motor stator |
| CN113037034A (en) * | 2021-02-24 | 2021-06-25 | 北京航天控制仪器研究所 | Iron core hot dipping coating tool, system and method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588376B (en) * | 2014-11-25 | 2016-06-29 | 合肥通用机械研究院 | Rubber crushing and removing device for motor stator of screw drill |
| DE102015225758A1 (en) | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Process for coating an electromagnetically excitable core |
| DE102018121708A1 (en) * | 2018-09-05 | 2020-03-05 | Vaf Gmbh | Cleaning device and method for cleaning a body coated by immersion |
| CN111992546B (en) * | 2020-08-28 | 2021-12-03 | 无锡中车时代智能装备有限公司 | Automatic cleaning machine for motor stator core inner groove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19644360A1 (en) * | 1996-10-25 | 1998-04-30 | Pbs Pulverbeschichtungs Und Sp | Paint spray booth for powder coating of parts |
| CN1276269A (en) * | 1999-06-01 | 2000-12-13 | 日本电产株式会社 | Apparatus and method for spray coating ring articles |
| US20020127332A1 (en) * | 2001-03-06 | 2002-09-12 | Nordson Corporation | Method and apparatus for powder coating hollow objects |
| US6856052B2 (en) * | 2002-01-29 | 2005-02-15 | Mitsubishi Denki Kabushiki Kaisha | Stator core, and method and apparatus for producing the same |
| US20080171135A1 (en) * | 2007-01-16 | 2008-07-17 | Burch Jerry C | Method and apparatus for powder coating stator stacks |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10333187A1 (en) * | 2003-07-22 | 2005-03-03 | Robert Bosch Gmbh | Method for applying an electrical insulation |
-
2008
- 2008-12-17 DE DE102008054810A patent/DE102008054810A1/en not_active Withdrawn
-
2009
- 2009-12-15 BR BRPI0923044A patent/BRPI0923044A2/en not_active IP Right Cessation
- 2009-12-15 EP EP09808992A patent/EP2380263A2/en not_active Withdrawn
- 2009-12-15 WO PCT/EP2009/067169 patent/WO2010069948A2/en active Application Filing
- 2009-12-15 CN CN2009801568438A patent/CN102318170A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19644360A1 (en) * | 1996-10-25 | 1998-04-30 | Pbs Pulverbeschichtungs Und Sp | Paint spray booth for powder coating of parts |
| CN1276269A (en) * | 1999-06-01 | 2000-12-13 | 日本电产株式会社 | Apparatus and method for spray coating ring articles |
| US20020127332A1 (en) * | 2001-03-06 | 2002-09-12 | Nordson Corporation | Method and apparatus for powder coating hollow objects |
| US6856052B2 (en) * | 2002-01-29 | 2005-02-15 | Mitsubishi Denki Kabushiki Kaisha | Stator core, and method and apparatus for producing the same |
| US20080171135A1 (en) * | 2007-01-16 | 2008-07-17 | Burch Jerry C | Method and apparatus for powder coating stator stacks |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037034A (en) * | 2021-02-24 | 2021-06-25 | 北京航天控制仪器研究所 | Iron core hot dipping coating tool, system and method |
| CN113036976A (en) * | 2021-03-04 | 2021-06-25 | 卓尔博（宁波）精密机电股份有限公司 | High-insulativity motor stator |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008054810A1 (en) | 2010-06-24 |
| WO2010069948A3 (en) | 2011-07-07 |
| WO2010069948A2 (en) | 2010-06-24 |
| BRPI0923044A2 (en) | 2015-12-15 |
| EP2380263A2 (en) | 2011-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102318170A (en) | Method for removing an electrically insulating powder layered on a stator core, device for performing the method, and electric machine having a stator core | |
| JP5510709B2 (en) | Rotating electric machine stator | |
| JP4741665B2 (en) | Slip ring component group for rotor of electric machine, electric machine with slip ring component group, and method for manufacturing slip ring component group | |
| US9729020B2 (en) | Motor stator having channels used for cooling and method of providing the channels | |
| US20120161567A1 (en) | Stator for electric rotating machine and method of manufacturing the same | |
| CN101752961B (en) | Brush plate and retainer assembly for a starter of a motor vehicle | |
| JP6118594B2 (en) | Coil, rotating electric machine including the same, and manufacturing method thereof | |
| JP2008160973A (en) | Rotor and rotary electric machine | |
| JP3959975B2 (en) | AC generator for vehicles | |
| CN109075653B (en) | Rotating electrical machine with optimized cooling | |
| CA2735700A1 (en) | Electrical machine | |
| CN107005132A (en) | The rotor and electric rotating machine of electric rotating machine | |
| EP3163724B1 (en) | Rotating electric machine rotor | |
| CN101355274A (en) | Connection structure and method of connecting field coil and lead wires in vehicle alternator | |
| CN101584104B (en) | DC motor armature, DC motor and DC motor armature winding method | |
| US6057623A (en) | Dynamo-electric machine having a hook shaped commutator and equalizer attached thereto | |
| JPWO2018021104A1 (en) | Motor rotor, supercharger, and method of manufacturing motor rotor | |
| US10840754B2 (en) | Method of producing a permanent magnet machine | |
| JP5570660B2 (en) | Rotating electric machine rotor and rotating electric machine equipped with the same | |
| JP2001161043A (en) | Stator and rotor of dynamoelectric machine for vacuum and method fop manufacturing thereof | |
| JP2018074701A (en) | Commutator electric motor element, commutator electric motor, electric blower, and cleaner | |
| JP2017041916A (en) | Stator for rotary electric machine, rotary electric machine with the same, and manufacturing method thereof | |
| JP3722174B2 (en) | Rotating electric machine | |
| JP2020511929A (en) | Claw pole stator for transversal flux motor and segment for claw pole stator | |
| EP3767803B1 (en) | Electric generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120111 |