CN105576912B - Motor stator with partition type iron core into circle device - Google Patents

Motor stator with partition type iron core into circle device Download PDF

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Publication number
CN105576912B
CN105576912B CN201511026713.6A CN201511026713A CN105576912B CN 105576912 B CN105576912 B CN 105576912B CN 201511026713 A CN201511026713 A CN 201511026713A CN 105576912 B CN105576912 B CN 105576912B
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China
Prior art keywords
iron core
pressing device
partition type
motor stator
compact heap
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CN201511026713.6A
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CN105576912A (en
Inventor
王东阳
刘志勇
倪振华
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United Automotive Electronic Systems Co Ltd
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United Automotive Electronic Systems Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The invention discloses a kind of motor stator with partition type iron core into circle device, it includes bottom plate, pressing device inner ring, N number of compact heap, pressing device outer ring, drive device, splicing base;Pressing device inner ring, it is fixed on the bottom plate, is evenly distributed with N number of radially-directed groove around circumferential, is split between adjacent radial guide groove the inner by a projection;N number of compact heap corresponds respectively to be placed in N number of radially-directed groove, and can be moved radially;Taken the form of inclined plane between the left and right sides of the outer face of compact heap;In annular shape, inner side is uniformly fixed with N number of squeezing rod, is being placed with for being nested with outside the pressing device inner ring of N number of compact heap for pressing device outer ring;Driving is put for driving tight device outer ring to be rotated about axis;It is discoid to splice base, is provided with N number of support cylinder on same circumference above;Splicing base is placed on and is compacted device inner ring surrounding.The present invention can guarantee that the dimensional accuracy of stator Cheng Yuanhou iron cores, cylindricity precision height.

Description

Motor stator with partition type iron core into circle device
Technical field
The present invention relates to motor manufacturing technology, more particularly to a kind of motor stator with partition type iron core into circle device.
Background technology
In the molded design of motor stator core, because partition type stator core is easy to process, utilization rate of raw materials is high, just Progressively it is being widely used.Heat caused by motor work is mainly by being fitted in the inner water sleeve of core exterior surface by heat band Walk.Therefore, vital effect is played in the smooth assembling of stator core and inner water sleeve and fully radiating of the fitting to motor, this It is very high into circle quality to require that stator core will have.
At present, with partition type iron core motor stator into circle mode be that welding is equipped with by certain stator core construction Technique carry out into circle.Due to that can produce substantial amounts of heat during welding, after welding, residual stress is big, and iron core can deform, can not Meet the high-precision requirement of cylindricity size after being molded.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of motor stator with partition type iron core into circle device, can protect The dimensional accuracy of stator Cheng Yuanhou iron cores is demonstrate,proved, cylindricity precision is high.
In order to solve the above technical problems, the motor stator provided by the invention with partition type iron core, into circle device, it is wrapped Bottom plate, pressing device inner ring, N number of compact heap, pressing device outer ring, drive device, splicing base are included, N is the integer more than 2;
The pressing device inner ring, is fixed on the bottom plate;
The pressing device inner ring, N number of radially-directed groove is evenly distributed with around circumferential, between adjacent radial guide groove the inner Split by a projection;
N number of compact heap corresponds respectively to be placed in N number of radially-directed groove, and can be moved radially;
Taken the form of inclined plane between the left and right sides of the outer face of the compact heap;
The pressing device outer ring, in annular shape, inner side is uniformly fixed with N number of squeezing rod;
The pressing device outer ring, it is being placed with for being nested with outside the pressing device inner ring of N number of compact heap;
The drive device, for driving the pressing device outer ring to be rotated about axis;
The splicing base, it is discoid, is provided with N number of support cylinder on same circumference above;
The splicing base, is placed on the bottom plate, and is surround by the pressing device inner ring.
Preferably, one of compact heap inner face is provided with positioning boss.
Preferably, the motor stator with partition type iron core also includes check lock lever into circle device, compresses and cover;
There is bayonet socket the check lock lever, one end;
Covered in the compression, there is hole centre;
The splicing base, middle upper part are provided with locking connecting rod;
The locking connecting rod, there is snap fit upper end.
Preferably, the motor stator with partition type iron core also includes N/2 helical spring into circle device, N is even number;
Each two compact heap is one group, is connected and fixed between same group of two compact heaps by bridge arm;
The spring, one end are resisted against on the bridge arm between same group of two compact heaps, and the other end is resisted against same group Two compact heaps residing on projection between adjacent radial guide groove the inner.
Preferably, the motor stator with partition type iron core is into circle device, in addition to jacking cylinder;
The jacking cylinder, with will in complete into round iron core and splicing base eject upwards so that splicing base it is complete Depart from pressing device inner ring.
Preferably, the drive device is handwheel or servomotor;
The handwheel or servomotor are fixed on bottom plate, and its output shaft is located at the tangential direction of pressing device outer ring;
The output shaft of the handwheel or servomotor is engaged by leading screw with the teeth groove set on the outside of pressing device outer ring.
Preferably, N is 24.
The motor stator with partition type iron core of the present invention is provided with and iron core unit quantity into circle device, splicing base Equal support cylinder, it is spacing when splicing as iron core unit;The inner headed face that all compact heap inner faces are formed is as iron core The Cheng Yuan cylindrical reference plane of stator.Using the present invention the motor stator with partition type iron core into circle device progress iron core into Circle, because squeezing rod is located on same pressing device outer ring, it is ensured that each squeezing rod can be simultaneously to corresponding iron core unit Impartial thrust is provided, it is ensured that iron core Cheng Yuanhou cylindricity precision, entirely into circle process without being welded to iron core unit Connect, into circle concise in technology, core interior, which will not produce, causes thermal deformation because of welding, so as to ensure the chi of stator Cheng Yuanhou iron cores Very little precision, cylindricity precision are high, it is possible to achieve being brought into close contact for smoothly socket, guarantee water jacket and stator, improve with inner water sleeve Motor radiating performance.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, the accompanying drawing used required for the present invention is made below simple Introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill people For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is iron core unit structural representation;
Fig. 2 be the present invention the motor stator with partition type iron core into justify the embodiment explosive view of device one;
Fig. 3 be the present invention the motor stator with partition type iron core into justify the embodiment top view of device one;
Fig. 4 be the present invention the motor stator with partition type iron core into justify the embodiment local overlooking enlarged drawing of device one;
Fig. 5 be the present invention the motor stator with partition type iron core into justify the embodiment compact heap schematic diagram of device one.
Embodiment
Below in conjunction with accompanying drawing, clear, complete description is carried out to the technical scheme in the present invention, it is clear that described Embodiment is the part of the embodiment of the present invention, rather than whole embodiments.It is general based on the embodiment in the present invention, this area All other embodiment that logical technical staff is obtained on the premise of creative work is not made, belongs to protection of the present invention Scope.
Embodiment one
Motor stator with partition type iron core into circle device, as shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, including bottom plate 50, pressure Tight device inner ring 5, N number of compact heap 10, pressing device outer ring 6, drive device 7, splicing base 4, N are the integer more than 2;
The pressing device inner ring 5, it is fixed on the bottom plate 50;
The pressing device inner ring 5, N number of radially-directed groove is evenly distributed with around circumferential, adjacent radial guide groove the inner Between by a projection split;
N number of compact heap 10 corresponds respectively to be placed in N number of radially-directed groove, and can be moved radially;
Taken the form of inclined plane between the left and right sides of the outer face of the compact heap 10;
The pressing device outer ring 6, in annular shape, inner side is uniformly fixed with N number of squeezing rod 61;
The pressing device outer ring 6, it is being placed with for being nested with outside the pressing device inner ring 5 of N number of compact heap 10;
The drive device 7, for driving the pressing device outer ring 6 to be rotated about axis;
The splicing base 4, to be discoid, N number of support cylinder 41 is provided with same circumference above;
The splicing base 4, is placed on the bottom plate 50, and surround by the pressing device inner ring 5.
As shown in figure 1, there are convex tendon 11, opposite side fluted 12, two neighboring iron in the side of iron core unit 1 of partition type iron core A motor stator core is spliced to form by convex tendon 11 and the mosaic splicing of groove 12, N number of iron core unit 1 between core unit 1.
Preferably, the outer face of iron core unit 1 is provided with detent 13, one of inner face of compact heap 10 is provided with The positioning boss 101 being adapted to the detent 13.It is fixed that positioning boss 101 coordinates with the detent 13 in iron core unit 1 The position of first iron core unit 1 in position, it is ensured that the outer face center of 10 center alignment iron core unit of compact heap 1.
The motor stator with partition type iron core of embodiment one is as follows into circle device, the course of work:
(1) splicing of iron core unit 1 is carried out on splicing base 4, base is held round provided with the branch equal with iron core quantity Post 41, when placing first iron core unit 1, with the positioning of the positioning boss 101 on one of compact heap 10 and iron core unit 1 Groove 13 is positioned, it is ensured that the alignment iron core unit 1 of compact heap 10, then passes through the convex tendon 11 and groove 12 of adjacent iron cores unit Mosaic splicing successively, other each iron core units are placed on one by one on splicing base 4, with the support cylinder 9 one on splicing base 4 One correspondence, N number of iron core unit is spliced into annular shape.
(2) it is fixed on into the pressing device inner ring 5 of circle device on bottom plate 50, pressing device inner ring 5 is provided with and iron core list The equal compact heap 10 of first quantity, pressing device outer ring 6 is located at the outside of pressing device inner ring 5, due to the outer face of compact heap 10 Taken the form of inclined plane between the left and right sides, so having inclined-plane gap between the outer face of compact heap 10 and pressing device outer ring 6, outside pressing device Circle 6 is provided with the squeezing rod 61 equal with the quantity of compact heap 10, and pressing device outer ring 6 can rotate around pressing device inner ring 5.Iron core After unit 1 completes splicing on splicing base 4, drive device 7 drives pressing device outer ring 6 around axis both clockwise or micro- counterclockwise Small rotation, it is now placed in the squeezing rod 61 on pressing device outer ring 6 and is pressed between the outer face of compact heap 10 and pressing device outer ring 6 Inclined-plane gap in so that compact heap 10 move radially to iron core unit 1 provide thrust, each compact heap 10 is respectively to corresponding Iron core unit 1 provides the thrust of equalization, completes the Cheng Yuan of iron core.
For the motor stator with partition type iron core of embodiment one into circle device, iron core unit bottom is positioned at splicing base 4 upper surfaces, splicing base 4 are provided with the support cylinder 41 equal with the quantity of iron core unit 1, when splicing as iron core unit 1 It is spacing;Stator cylindrical reference plane of the inner headed face that all inner faces of compact heap 10 are formed as iron core Cheng Yuan.Utilize embodiment one The motor stator with partition type iron core into circle device carry out iron core Cheng Yuan, because squeezing rod 61 is located at same pressing device On outer ring 6, it is ensured that each squeezing rod 61 can simultaneously corresponding iron core unit 1 is provided equalization thrust, it is ensured that iron core into Cylindricity precision after circle, entirely into circle process without being welded to iron core unit 1, into circle concise in technology, core interior is not Can produce causes thermal deformation because of welding, and so as to ensure the dimensional accuracy of stator Cheng Yuanhou iron cores, cylindricity precision is high, Ke Yishi Being brought into close contact for now smoothly socket, guarantee water jacket and stator, improves motor radiating performance with inner water sleeve.
Embodiment two
Based on embodiment one, the motor stator with partition type iron core is into circle device also including lid 3 in check lock lever 2, compression;
The check lock lever 2, there is bayonet socket one end;
Lid 3 in the compression, there is hole centre;
The splicing base 4, middle upper part are provided with locking connecting rod 42;
The locking connecting rod 42, there is snap fit upper end.
For the motor stator with partition type iron core of embodiment two into circle device, check lock lever 2 is used for will splicing base 4 and pressure Tightly above lid 3 is locked, and lid 3 is used to provide iron core axial pressing force in compression, and locking connecting rod 42 is used for will with the cooperation of check lock lever 2 Lid 3 is locked with splicing base 4 in compression.After iron core unit 1 is compacted into circle, upper lid 3 will be compressed and be positioned over above iron core, locking The snap fit of the upper end of connecting rod 42 is passed by compressing the hole among upper lid 3, and the bayonet socket of the one end of check lock lever 2 is the same as in locking connecting rod 42 After the snap fit connection at end, it will be pressed in into the iron core after circle between the upper lid 3 of compression and splicing base 4, the position of secured core unit 1 Put.
Embodiment three
Based on embodiment one, the motor stator with partition type iron core also includes N/2 helical spring 9 into circle device, and N is Even number;
Each two compact heap 10 is one group, and one is fastened on by bridge arm 102 between same group of two compact heaps 10 Rise;
The spring 52, one end are resisted against on the bridge arm between same group of two compact heaps 10, and the other end is resisted against together On projection between adjacent radial guide groove the inner residing for one group of two compact heaps 10.
The motor stator with partition type iron core of embodiment three is into circle device, when drive device 7 is driven outside pressing device Circle 6 counterclockwise or rotates clockwise around axis, makes outer end of the squeezing rod 61 away from compact heap 10 on pressing device outer ring 6 Face, the not compact power in the outer face of compact heap 52, helical spring 9 open the top of each group compact heap 10, it is ensured that compact heap 10 and Cheng Yuanhou Stator core depart from.
Example IV
The motor stator with partition type iron core based on embodiment two is into circle device, in addition to jacking cylinder 8;
The jacking cylinder 8, with will in complete into round iron core and splicing base 4 eject upwards so that splicing base 4 it is complete Total detachment pressing device inner ring 5, the socket of stator cooling water set is then completed by way of hot jacket.
Complete stator cooling water set socket after, make check lock lever 2 with locking connecting rod 42 unclamp so that in compressions lid 3 and Splicing base 4 departs from, and takes out and completes iron core into circle and the stator of cooling jacket socket.
Embodiment five
For the motor stator with partition type iron core based on embodiment one into circle device, the drive device 7 can be hand Wheel or servomotor;
The handwheel or servomotor are fixed on bottom plate 50, and its output shaft is located at the tangential direction of pressing device outer ring 6;
The output shaft of the handwheel or servomotor is engaged by leading screw with the teeth groove that the outside of pressing device outer ring 6 is set.
Preferably, N is 24.
The motor stator with partition type iron core of example IV rotates the output shaft of handwheel or servomotor into device is justified Pressing device outer ring 6 can be made around the minor rotation clockwise or counterclockwise of pressing device inner ring 5.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God any modification, equivalent substitution and improvements done etc., should be included within the scope of protection of the invention with principle.

Claims (7)

1. a kind of motor stator with partition type iron core into circle device, it is characterised in that including bottom plate, pressing device inner ring, N Individual compact heap, pressing device outer ring, drive device, splicing base, N are the integer more than 2;
The pressing device inner ring, is fixed on the bottom plate;
The pressing device inner ring, N number of radially-directed groove is evenly distributed with around circumferential, by one between adjacent radial guide groove the inner Projection is split;
N number of compact heap corresponds respectively to be placed in N number of radially-directed groove, and can be moved radially;
Taken the form of inclined plane between the left and right sides of the outer face of the compact heap;
The pressing device outer ring, in annular shape, inner side is uniformly fixed with N number of squeezing rod;
The pressing device outer ring, it is being placed with for being nested with outside the pressing device inner ring of N number of compact heap;
The drive device, for driving the pressing device outer ring to be rotated about axis;
The splicing base, it is discoid, is provided with N number of support cylinder on same circumference above;
The splicing base, is placed on the bottom plate, and is surround by the pressing device inner ring.
2. the motor stator according to claim 1 with partition type iron core into circle device, it is characterised in that
One of compact heap inner face is provided with positioning boss.
3. the motor stator according to claim 1 with partition type iron core into circle device, it is characterised in that
Motor stator with partition type iron core also includes check lock lever into circle device, compresses and cover;
There is bayonet socket the check lock lever, one end;
Covered in the compression, there is hole centre;
The splicing base, middle upper part are provided with locking connecting rod;
The locking connecting rod, there is snap fit upper end.
4. the motor stator according to claim 1 with partition type iron core into circle device, it is characterised in that
Motor stator with partition type iron core also includes N/2 helical spring into circle device, and N is even number;
Each two compact heap is one group, is connected and fixed between same group of two compact heaps by bridge arm;
The spring, one end are resisted against on the bridge arm between same group of two compact heaps, and the other end is resisted against the two of same group On projection between adjacent radial guide groove the inner residing for individual compact heap.
5. the motor stator according to claim 1 with partition type iron core into circle device, it is characterised in that
Motor stator with partition type iron core is into circle device, in addition to jacking cylinder;
The jacking cylinder, for will complete to eject upwards into round iron core and splicing base so that splicing base completely disengages Pressing device inner ring.
6. the motor stator according to claim 1 with partition type iron core into circle device, it is characterised in that
The drive device is handwheel or servomotor;
The handwheel or servomotor are fixed on bottom plate, and its output shaft is located at the tangential direction of pressing device outer ring;
The output shaft of the handwheel or servomotor is engaged by leading screw with the teeth groove set on the outside of pressing device outer ring.
7. the motor stator according to claim 1 with partition type iron core into circle device, it is characterised in that
N is 24.
CN201511026713.6A 2015-12-31 2015-12-31 Motor stator with partition type iron core into circle device Active CN105576912B (en)

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CN105576912B true CN105576912B (en) 2018-03-20

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CN107171514B (en) * 2017-07-27 2018-12-25 李慧 Magneto piece stator assembling
CN109888988B (en) * 2019-01-16 2024-02-23 南京埃斯顿自动化股份有限公司 Iron core round splicing component used in stator round splicing equipment
CN110216412B (en) * 2019-06-28 2023-10-27 珠海格力电器股份有限公司 Block type rounding device and rounding method for to-be-rounded parts
CN118487440A (en) * 2024-07-10 2024-08-13 深圳市合利士智能装备有限公司 Iron core pre-rounding mechanism and pre-rounding method thereof
CN118487441A (en) * 2024-07-10 2024-08-13 深圳市合利士智能装备有限公司 Pre-rounding equipment for motor assembly and pre-rounding method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442224A (en) * 2008-12-30 2009-05-27 卧龙电气集团股份有限公司 Segmented iron core structure and rounding method
CN102522858A (en) * 2011-12-20 2012-06-27 青岛海立美达电机有限公司 Split-type magnetic suspension motor and assembling method thereof
CN103762757A (en) * 2014-01-10 2014-04-30 广东威灵电机制造有限公司 Servo motor iron core, servo motor iron core tool and servo motor iron core manufacturing method
CN104617716A (en) * 2013-11-04 2015-05-13 联合汽车电子有限公司 Method for assembling split stator core and assembly tool used thereby
CN205304535U (en) * 2015-12-31 2016-06-08 联合汽车电子有限公司 Motor stator becomes circle device with cut apart formula iron core

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6130257B2 (en) * 2013-07-19 2017-05-17 本田技研工業株式会社 Stator manufacturing apparatus and stator manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442224A (en) * 2008-12-30 2009-05-27 卧龙电气集团股份有限公司 Segmented iron core structure and rounding method
CN102522858A (en) * 2011-12-20 2012-06-27 青岛海立美达电机有限公司 Split-type magnetic suspension motor and assembling method thereof
CN104617716A (en) * 2013-11-04 2015-05-13 联合汽车电子有限公司 Method for assembling split stator core and assembly tool used thereby
CN103762757A (en) * 2014-01-10 2014-04-30 广东威灵电机制造有限公司 Servo motor iron core, servo motor iron core tool and servo motor iron core manufacturing method
CN205304535U (en) * 2015-12-31 2016-06-08 联合汽车电子有限公司 Motor stator becomes circle device with cut apart formula iron core

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