CN1913283A - Electromotor for washing machine and washing machine having the electric motor - Google Patents
Electromotor for washing machine and washing machine having the electric motor Download PDFInfo
- Publication number
- CN1913283A CN1913283A CN 200610106898 CN200610106898A CN1913283A CN 1913283 A CN1913283 A CN 1913283A CN 200610106898 CN200610106898 CN 200610106898 CN 200610106898 A CN200610106898 A CN 200610106898A CN 1913283 A CN1913283 A CN 1913283A
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- Iron Core Of Rotating Electric Machines (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention provides a motor for washing machine in which unbalance of reluctance is reduced by dividing a core into segments of different number of teeth, and the yield of material of stator core can be enhanced furthermore. The motor for washing machine comprises a stator 40 formed by laminating a plurality of annular cores 41 having a plurality of teeth 43 and 43 projected toward the inner or outer circumference and then winding a coil 51 around the teeth 43, and a rotor 70 located coaxially with the stator 40 and having a plurality of magnets 72 arranged at positions opposing the teeth 43 wherein the core 41 is constituted by coupling segments 45 and 46 divided into at least two in the circumferential direction to have at least two kinds of teeth of different number.
Description
Technical field
The present invention relates to make the motor of washing machine inside groove and blender (Pulsator) rotation, more particularly, relate to and stackedly be split into the iron core that a plurality of sections (segment) constitute and constitute the use in washing machine motor of stator.
Background technology
Make the inside groove of washing machine and the use in washing machine motor of blender rotation, freely be disposed at the interior week of stator or the rotor (rotor) of periphery constitutes by the stator of coiling coil (coil) and rotation, rotor can transferring power, is linked to inside groove and blender, makes the rotation of inside groove and blender.
Generally stator arrangement is called outer rotor type motor in the motor of interior all sides of rotor, stator arrangement is called the inner-rotor type motor in the motor of the outer circumferential side of rotor.
Stator be stacked a plurality of in yoke portion the interior all sides or the iron core of the outstanding ring-type that is provided with a plurality of teeth (teeth) of outer circumferential side and constitute.
Unshakable in one's determination generally by the metal plate perforation of silicon steel plate etc. is made.
Unshakable in one's determination if directly bore a hole from the metallic plate of ring-type, then have the inferior problem of finished material rate.
In order to improve the finished material rate, as shown in Figure 5, proposed by circumferentially constituting iron core 90 for divided a plurality of 91,91, divided section 91,91 is distinguished stacked and stator (for example, patent documentation 1) that link.
This iron core 90, the number of teeth of each section 91,91 is split into the multiple of the number of phases (three-phase), and each section 91,91 as shown in Figure 6, is arranged and blanking on metallic plate 60 up and down, makes by perforation processing.Moreover the circular hole of symbol 93 expression among the figure is the circular hole that embeds the pin (pin) that mold position uses.
[patent documentation 1] spy opens the 2000-152529 communique
Cut section is 91,91 o'clock as mentioned above, is U, V, W if be located at the phase place of the moving electric current of the coil midstream that is around on the tooth 92, and then as shown in Figure 5, section each seam 94 each other is all between same phase, promptly in the drawings all between U and W.
Because section 91,91 seam 94 each other, general magnetic loss is big, so seam 94 all is positioned between same phase, then becomes the unbalanced state of magnetic, might rotate inequality or vibration when making the motor rotation, and then produces noise.
In addition, when the number of teeth that clothing is identical is cut apart, because the arc length of each section 91,91 is identical, so on metallic plate 60, if arrange section and blanking as shown in Figure 6, becoming big and opening the therefore further rate of finished products that requires to improve material between interior all side circular arc P of then neighbouring section 91,91 and the outer circumferential side circular arc Q apart from S.
Summary of the invention
The purpose of this invention is to provide a kind of use in washing machine motor and assembled the washing machine of this use in washing machine motor, it is by being divided into segments of different number of teeth, to reduce the imbalance of magnetic resistance, the rate of finished products of material of the iron core of stator is further improved.
In order to solve above-mentioned problem use in washing machine motor of the present invention, have:
Stator, it is a plurality of stacked towards the outstanding iron core that the ring-type of a plurality of teeth is set of interior week or periphery, coil is wound in tooth and forms;
Rotor, it is provided with stator is concentric, in the position configuration with the tooth antagonism a plurality of magnet is arranged,
This use in washing machine motor is characterised in that,
Iron core links section and constitutes, and this section upwards was split into more than 2 at least in week, is cut apart in the mode that forms the different number of teeth more than at least 2 kinds.
The number of preferred divided section is 4.
The number of teeth of preferred divided section has 2 kinds, section to Duo a number of teeth than another section.
The preferred number of phases is a three-phase, in seam each other of the section at least 1 and other the section seam each other, with the different mode cut section of the combination that clips the adjacent phase of seam.
According to use in washing machine motor of the present invention,, can change arc length, the shape of section by iron core is divided into section in the mode that becomes the numbers of teeth different more than at least 2 kinds.Its result shown in the embodiment, when section is arranged in the metallic plate loading and unloading, can make the interior all circular arcs and the periphery circular arc of section up and down approaching as described later, and the finished material rate is further improved, and can reduce cost.
Owing to make the number of teeth of section not be all a plurality of kinds, the combination of the phase of the coil that clips section seam each other can be changed in addition,, the uneven and vibration of rotation of motor can be suppressed so can reduce the imbalance of magnetic resistance.
Description of drawings
Fig. 1 is the profile of washing machine.
Fig. 2 is the amplification profile of the driving mechanism of washing machine.
Fig. 3 is the vertical view that links the iron core that the section cut apart with main points of the present invention forms.
Fig. 4 is that the section cut apart with main points of the present invention of expression is at metallic plate loading and unloading state vertical view.
Fig. 5 is the vertical view that links the iron core that the section cut apart with existing main points forms.
Fig. 6 is the vertical view of the section cut apart with existing main points of expression at the state of metallic plate loading and unloading.
Among the figure: 10 washing machines, 20 Poewr transmission mechanisms, 30 use in washing machine motor, 40 stators, 41 iron cores, 42 yoke portions, 43 teeth, 45 sections, 46 sections, 49 seams, 60 metallic plates, 70 rotors.
Embodiment
To the washing machine 10 that has loaded use in washing machine motor 30 of the present invention, Yi Bian describe on one side with reference to accompanying drawing.In addition, though following the embodiment that the present invention is applicable to outer rotor type motor is described, much less the present invention also can be applicable to the inner-rotor type motor.
Fig. 1 is washing machine 10 profiles that load use in washing machine motor 30 of the present invention, and Fig. 2 is the amplification profile of driving mechanism.Washing machine 10 constitutes: in the inside that is suspended the water jacket that the round-ended cylinder shape is arranged 12 (hopper) that is supported on basket 11, rotate pivot suspension freely has a plurality of dewatering holes (not shown) at perisporium the inside groove that the round-ended cylinder shape is arranged 13 (drench pit).At the inner bottom surface of inside groove 13, rotation freely is supported with the blender 15 (paddle) that is used for the agitator treating thing.
Inside groove 13 extends at the main shaft 14 of bottom surface side hollow, is embedded in this main shaft 14 as the rachis 16 of blender 15 via oilless bearing alloy (oilless metal).Main shaft 14 and rachis 16 connect water jacket 12, via the following Poewr transmission mechanism 20 that is installed on the receiving plate 18 that is located at water jacket 12 downsides, and are connected in use in washing machine motor 30.
Use in washing machine motor 30 as shown in Figure 2, can be illustrated in inboard configuration stator 40, in the outer rotor type motor of outside configuration stator 70.Stator 40 is contained in the inside of the stator case 54 of the periphery shell 21 that is installed in described Poewr transmission mechanism 20, rotor 70, and the periphery of covering stator 40 is with stator 40 concentric inlaying.
More than 40 stacked toroidal cores shown in Figure 3 41 of stator and constituting.Unshakable in one's determination 41, constitute by ring-type yoke portion 42 with from the outstanding tooth 43,43 that is provided with of periphery of this yoke portion 42.Illustrated unshakable in one's determination 41, the number of teeth is 18, and tooth 43 is with uniformly-spaced, i.e. 20 ℃ of outstanding settings in intervals.Tooth 43 is the parts that are wound with coil 51 when laminate core 41, and front end enlarges.
As shown in Figure 3, unshakable in one's determination 41 in the number of teeth different mode more than at least 2 kinds, constitutes by upwards be partitioned into a plurality of section 45,46 in week.For example unshakable in one's determination 41 the number of teeth is 18 o'clock, is that 5 the section 45 and the number of teeth are 4 section 46 by 2 pieces of ground combination numbers of teeth respectively, and can constitutes unshakable in one's determination 41.
Fig. 4 is illustrated in the preference of described section 45,46 from metallic plate 60 perforation blankings.As shown in Figure 4, the number of teeth is that 5 the section 45 and the number of teeth are 4 section 46, at the length direction of metallic plate 60 (in illustrated embodiment, adopt rectangular metallic plate, but in fact, metallic plate 60, be long coil, continuous on the above-below direction of figure) can arrange and blanking alternately.This is because because the number of teeth difference of section 45,46, so section 45,46 arc length, shape each other is also different, can alternatively arrange and blanking, the inner periphery circular arc P of neighbouring section 45,46 and the maximum standoff distance S (with reference to Fig. 4 and Fig. 6) of periphery circular arc Q can be shortened thus, the finished material rate can be further improved.
If compare particularly, as shown in Figure 4, the necessary area of the metallic plate when carrying out unshakable in one's determination 41 material blanking with main points of the present invention, be the metallic plate when carrying out unshakable in one's determination 90 blanking with the existing main points of Fig. 6 necessary area about 80%.Thereby can improve about 20% finished material rate.In Fig. 6, the size of the metallic plate when carrying out blanking unshakable in one's determination with main points of the present invention is represented by chain-dotted line R.
On metallic plate 60, as mentioned above, with section 45,46 blankings, and blanking has the hole 61,61 of the pin that embeds mold position.After these blankings,, make the section 45,46 of regulation shape with one or many perforated metal 60.
Also have, in section 45,46, with section 45 each other, section 46 is laminated to each other and when riveting, and for fear of position deviation, the riveted joint that is meshing with each other preferably is set with depression (not shown) when stacked on tooth 43.It can form when boring a hole simultaneously.Riveted joint can all form on tooth 43 with depression, also can only form on several teeth 43.In addition,, link section 45,46 respectively, and at one end be formed with engaging recessed part 47, and be formed with engaging claw 48 at the other end in the end of the yoke portion 42 of section 45,46.
As mentioned above, from the section 45,46 of metallic plate 60 perforation, each section 45 of difference, each section 46 stacked, riveted joint.In the time of riveted joint, the riveted joint of being located at tooth 43 can improve section bond strength each other with the depression engagement, can prevent to be separated by.
The situation of present embodiment, unshakable in one's determination 41 in order to constitute, and 22 ground make the duplexer of sections 45, the duplexer of section 46.
As shown in Figure 3, make the duplexer of being made, it is chimeric and to link be ring-type to arrange engaging recessed part 47 and engaging claw 48 with section 45 and section 46 alternant way, thereby makes unshakable in one's determination 41.
Also have, during resin mold moulding, preferably be pre-formed the rib 53,53 of the deviation that prevents coil 51.
Unshakable in one's determination 41 after resin mold moulding, and the coil 51 of reeling respectively on tooth 43 is implemented the electric wiring of regulation and made stator 40.Moreover in the time of three-phase alternating-current motor, three groups coil 51 is wound in each tooth 43 in order.
On the stator of making 40, in order to discharge water and stator 40 to be installed on the periphery shell 21 of Poewr transmission mechanism 20, and implement resin mold moulding, preferably with stator case 54 covering stators 40.As the mold resin, BMC resin (Bulk moulding compound resin, for example thermosetting unsaturated polyester) can example be shown also has, this situation is not also implemented resin mold moulding at the front end of tooth 43, and it is exposed.
As mentioned above, by resin mold moulding that stator 40 is discharged water, even water intrusion is arranged in motor 30, coil 51 does not have short circuit yet, has advantages such as the deterioration that can prevent to get rusty.Surround after the stators 40 by stator case 54, stator case 54 is installed on the peripheral closure 21 of Poewr transmission mechanism 20, in stator 40 peripheries, configuration rotor 70.
Central authorities in the bottom surface of rotor 70 are connected with the driving shaft 31 of Poewr transmission mechanism 20.
In the use in washing machine motor 30 of above-mentioned formation, rotor 70 rotations if coil 51 is switched on, then owing to the three-phase alternating current that flows at coil 51, take place at stator 40 rotary magnetic fields.
The rotation of rotor 70 is transmitted by Poewr transmission mechanism 20, main shaft 14 and rachis 16 rotations, inside groove 13, blender 15 rotations.
In the present invention, in the cutting apart of section 45,46, preferably as below carry out.
The quantity of 41 divided sections 45,46 unshakable in one's determination is more than 2, is preferably 4.This is to also have the complicated of installation procedure for the point that prevents blanking.
This situation, section 45,46, preferably each identical part (piece) disposes relatively.So, as shown in Figure 3, seam 49 is for unshakable in one's determination 41 center, whenever roughly 90 ° and exist of radial directions, can guarantee the stability of mechanics, can prevent that intensity from reducing.
The number of teeth of divided section can be made as a plurality of kinds in addition, be preferably 2 kinds.At this moment, a section 45 is more than another section 46 numbers of teeth, and preferably its difference is 1.This be because at least 1 section each other seam 49 and other section seam 49 each other, (combination W) can differently be cut apart for U, V to clip the phase of seam 49 adjacency.As can be known, seam 49 lays respectively at 2 positions between W and the U in example shown in Figure 3,2 positions between V and the W.
So, be positioned at by the different yoke portion 42 of magnetic flux by making seam 49, thus the magnetic loss homogenization that seam 49 is generated, its result, the imbalance of magnetic resistance diminishes, the vibration in the time of can suppressing to rotate.
As mentioned above, use in washing machine motor 30 of the present invention, because the imbalance of the magnetic resistance that stator 40 produces is very little, the vibration during rotation is little, so even be installed on washing machine 10, also can reach low vibration, low noise.
The industrial possibility of utilizing
The present invention is suitable as and can reduces vibration, can further improve washing of finished material rate in addition Clothing machine motor.
Claims (5)
1. use in washing machine motor has: stator, and it is a plurality of stacked towards interior week or the outstanding iron core that the ring-type of a plurality of teeth is set of periphery, coil is wound in tooth and forms; Rotor, it is provided with stator is concentric, in the position configuration with the tooth antagonism a plurality of magnet is arranged, it is characterized in that,
Iron core links section and constitutes, and this section upwards was split into more than 2 at least in week, is cut apart in the mode that forms the different number of teeth more than at least 2 kinds.
2. use in washing machine motor according to claim 1 is characterized in that, the number of divided section is 4.
3. use in washing machine motor according to claim 1 and 2 is characterized in that, the number of teeth of divided section is 2 kinds, and the section of one of them Duos 1 than the number of teeth of another section.
4. according to each described use in washing machine motor in the claim 1～3, it is characterized in that the number of phases is a three-phase, at least 1 section seam each other and other section seam each other, with the different mode cut section of the combination that clips the adjacent phase of seam.
5. a washing machine is characterized in that, each described use in washing machine motor in the claim 1～4 has been installed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005233879 | 2005-08-12 | ||
| JP2005233879A JP4721814B2 (en) | 2005-08-12 | 2005-08-12 | Washing machine motor and washing machine equipped with the motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1913283A true CN1913283A (en) | 2007-02-14 |
Family
ID=37722108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610106898 Pending CN1913283A (en) | 2005-08-12 | 2006-08-09 | Electromotor for washing machine and washing machine having the electric motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4721814B2 (en) |
| CN (1) | CN1913283A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097871A (en) * | 2009-12-11 | 2011-06-15 | 株式会社日立制作所 | Outer rotation type motor |
| CN101657949B (en) * | 2007-04-11 | 2012-05-30 | 松下电器产业株式会社 | Drum type washing machine |
| CN103081298A (en) * | 2010-12-17 | 2013-05-01 | 爱信艾达株式会社 | Stator core for rotating electrical machine |
| CN103746476A (en) * | 2013-12-20 | 2014-04-23 | 合肥凯邦电机有限公司 | External rotor three-phase motor |
| CN105610249A (en) * | 2016-02-16 | 2016-05-25 | 锦州市和兴模具有限公司 | Convex wound motor core and manufacturing method thereof |
| CN106953438A (en) * | 2017-04-11 | 2017-07-14 | 广东美的环境电器制造有限公司 | Outer rotor and its punching section, outer rotor iron core and its component and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009246319A (en) * | 2008-04-01 | 2009-10-22 | Fujikura Ltd | Heat spreader and its manufacturing method |
| JP5347321B2 (en) * | 2008-05-01 | 2013-11-20 | 日産自動車株式会社 | Manufacturing method and manufacturing apparatus for laminated iron core, and laminated iron core |
| JP5467840B2 (en) * | 2009-10-13 | 2014-04-09 | 株式会社日立産機システム | Permanent magnet motor |
| JP5585343B2 (en) * | 2010-09-21 | 2014-09-10 | トヨタ自動車株式会社 | Stator core manufacturing method |
| US9906084B2 (en) * | 2010-12-22 | 2018-02-27 | Fisher & Paykel Appliances Limited | Appliance, motor or stator |
| JP5773692B2 (en) * | 2011-03-18 | 2015-09-02 | 三菱電機株式会社 | Permanent magnet synchronous motor |
| JP5734068B2 (en) * | 2011-04-13 | 2015-06-10 | 三菱電機株式会社 | Manufacturing method of rotating electrical machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61285035A (en) * | 1985-06-12 | 1986-12-15 | Toshiba Corp | Stator core of rotary electric machine |
| JP4405000B2 (en) * | 1998-09-08 | 2010-01-27 | 株式会社東芝 | motor |
| JP2001211574A (en) * | 2000-01-20 | 2001-08-03 | Techno Excel Co Ltd | Stator core for motor |
| JP3535452B2 (en) * | 2000-06-28 | 2004-06-07 | 株式会社日立製作所 | DC brushless motor |
| JP2006345636A (en) * | 2005-06-08 | 2006-12-21 | Denso Corp | Spiral stator core for rotary electric machine |
-
2005
- 2005-08-12 JP JP2005233879A patent/JP4721814B2/en active Active
-
2006
- 2006-08-09 CN CN 200610106898 patent/CN1913283A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101657949B (en) * | 2007-04-11 | 2012-05-30 | 松下电器产业株式会社 | Drum type washing machine |
| CN102097871A (en) * | 2009-12-11 | 2011-06-15 | 株式会社日立制作所 | Outer rotation type motor |
| CN102097871B (en) * | 2009-12-11 | 2014-01-01 | 株式会社日立制作所 | Outer rotation type motor |
| CN103081298A (en) * | 2010-12-17 | 2013-05-01 | 爱信艾达株式会社 | Stator core for rotating electrical machine |
| CN103081298B (en) * | 2010-12-17 | 2015-04-15 | 爱信艾达株式会社 | Stator core for rotating electrical machine |
| CN103746476A (en) * | 2013-12-20 | 2014-04-23 | 合肥凯邦电机有限公司 | External rotor three-phase motor |
| CN105610249A (en) * | 2016-02-16 | 2016-05-25 | 锦州市和兴模具有限公司 | Convex wound motor core and manufacturing method thereof |
| CN106953438A (en) * | 2017-04-11 | 2017-07-14 | 广东美的环境电器制造有限公司 | Outer rotor and its punching section, outer rotor iron core and its component and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4721814B2 (en) | 2011-07-13 |
| JP2007049859A (en) | 2007-02-22 |
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