CN105529873B - Permanent magnet rotary electric machine and washing machine - Google Patents

Permanent magnet rotary electric machine and washing machine Download PDF

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Publication number
CN105529873B
CN105529873B CN201510624246.0A CN201510624246A CN105529873B CN 105529873 B CN105529873 B CN 105529873B CN 201510624246 A CN201510624246 A CN 201510624246A CN 105529873 B CN105529873 B CN 105529873B
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permanent magnet
stator
electric machine
end plate
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CN105529873A (en
Inventor
小原木春雄
菊地聪
湧井真
湧井真一
石井秀之
中泽健次
细川敦志
小河原博
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Hitachi Global Life Solutions Inc
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Hitachi Appliances Inc
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  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

The present invention provides the influence and the permanent magnet rotary electric machine that can be stably driven with and the washing machine for having used the permanent magnet rotary electric machine being difficult to by the noise as caused by frequency converter.Permanent magnet rotary electric machine has stator, the stator is configured to, stator core is made of multiple teeth and core-back, is equipped with insulating end plate in the axial ends portion of said stator iron core, is implemented the armature winding for concentrating winding in a manner of surrounding above-mentioned tooth via the insulating end plate;And rotor is rotatably freely supported with via defined gap in the inner circumferential of said stator, the rotor accommodates permanent magnet in the multiple permanent magnets insertion hole for being formed in rotor core, wherein, it is fixed with the Hall sensor substrate package for detecting the position of above-mentioned permanent magnet in above-mentioned insulating end plate, and is opposed to the axial end portion of above-mentioned rotor-side configured with the sensor base plate for being installed on above-mentioned Hall sensor substrate package.

Description

Permanent magnet rotary electric machine and washing machine
Technical field
The present invention relates to use the permanent magnet rotary electric machine for concentrating winding stator and used the permanent magnet The washing machine of formula rotating electric machine.
Background technique
The rotating electric machine of the rotating vane of washing machine is driven to use the permanent magnet rotary electric machine of transducer drive.Especially In vertical or tumbling-box washing machine, the winding method of rotating electric machine uses the armature winding mode for concentrating winding for it.In order to The winding process is automated, and insulating end plate is set in the axial sides of stator core, is fixed with inspection via the insulating end plate Survey the sensor base plate shell of the magnet positions of rotor.In contrast, propose improve sensor base plate shell installation accuracy, Improve the method (referring to patent document 1, patent document 2) of installation exercise.
Patent document 1:Japanese Unexamined Patent Publication 2009-81908 bulletin
Patent document 2:Japanese Unexamined Patent Publication 2010-200420 bulletin
In technology described in Patent Document 1, first of the core-back setting in resin molded stator core is utilized Sensor base plate shell is fixed in positioning mechanism and the second positioning mechanism being arranged near tooth front end.
In technology described in Patent Document 2, the tooth of the narrow component of setting slot opening width wide component and width, and Insulating end plate is set in a manner of with tooth cooperation, be thus fixed as sensor accommodating portion and is located at slot opening width is wide The insulating end plate of tooth is consistent.
In any of the above-described a technology, sensor base plate itself is configured at the side of armature winding, to work as from frequency converter After supplying distorted wave electric current to armature winding, has a possibility that sensor base plate generates higher hamonic wave noise, thus there is nothing Method is stably driven with this problem of permanent magnet rotary electric machine.
Summary of the invention
It can be steadily the purpose of the present invention is to provide the influence by the noise as caused by frequency converter can be difficult to The permanent magnet rotary electric machine of driving and the washing machine for having used the permanent magnet rotary electric machine.
In order to solve above-mentioned purpose, the present invention is a kind of permanent magnet rotary electric machine, has stator, which is constituted For, stator core is made of multiple teeth and core-back, it is equipped with insulating end plate in the axial ends portion of said stator iron core, via The insulating end plate implements the armature winding for concentrating winding in a manner of surrounding above-mentioned tooth;And the inner circumferential of said stator via Defined gap is rotatably freely supported with rotor, which accommodates in the multiple permanent magnets insertion hole for being formed in rotor core There is permanent magnet, wherein be fixed with outside the Hall sensor substrate for detecting the position of above-mentioned permanent magnet in above-mentioned insulating end plate Shell, and be opposed to the axial end portion of above-mentioned rotor-side configured with the sensor for being installed on above-mentioned Hall sensor substrate package Substrate.
In addition, in permanent magnet rotary electric machine of the invention, it is wide using the slot opening portion of said stator iron core Component and narrow component, and the sensor pocket shell of above-mentioned Hall sensor substrate package be configured to it is wide with slot opening portion Component it is consistent.
The effect of invention is as follows.
Mode according to the present invention, the sensor base plate due to being installed on Hall sensor substrate package are configured at rotor Side, sensor base plate is far from armature winding, so the noise as caused by frequency converter becomes difficult to be applied to sensor base plate.By This, is capable of providing anti-converter noise and the permanent magnet rotary electric machine that can be stably driven with and has used the permanent magnet The washing machine of formula rotating electric machine.
Detailed description of the invention
Fig. 1 is an example of the vertical washing machine in embodiments of the present invention.
Fig. 2 is the outside drawing of permanent magnet rotary electric machine.
Fig. 3 is the outside drawing of the permanent magnet rotary electric machine after the shell for removing Fig. 2.
Fig. 4 is the perspective view of the stator of permanent magnet rotary electric machine.
Fig. 5 is the figure for indicating the shape of stator core.
Fig. 6 is the outside drawing of Hall sensor substrate package.
Fig. 7 is the figure that Hall sensor substrate package is fixed on insulating end plate.
Fig. 8 is the radial longitudinal section view of the permanent magnet rotary electric machine in embodiments of the present invention.
In figure:
1- permanent magnet rotary electric machine, 2- are attached to the shell of fixation member, 3- bolt hole, 4- fixation member, 5- shell, 6- notch, 7- stator core, 8- axis, 9- insulating end plate, 10- insulating end plate, 11- core-back, 12- tooth, 13- fixation hole, 15- Inhibit hole, 16- slot, 17- guide wall, 18- guide groove, 19- Hall sensor substrate package, 20- bolt, 21- sensor base Plate, 22- input-output line, 23- fixed projection, 24- sensor pocket shell, 25- substrate package, 26- bolt hole, 27- pin are inserted Entering hole, 28- positions the portion L, 29- power connector box, 30- neutral point connector box, and 31- sells protrusion, 32- bolt fixed part, 33- Hall IC, 50- vertical washing machine, 51- outline border, 52- outline border matrix, 53- upper cover, 54- lid, 55- outer groove, 57- sunpender, The angle 58- supporting part, 59- sink, 60- balancer, 61- stirring blade, 62- band, 63- clutch, 64- gear-box, 65- are driven Belt wheel, 66- gear, 67- driving pulley, 68- dewatering hole, 69- control base board, 70- operation panel, 71- water level sensor, 72- Pressure pipe, 73- air collector, 74- fill the water shell, 75- water supply electromagnetic valve, 76- water supply hose, 77- outer capping, 78- draining Solenoid valve, 79- scupper hose, 80- antirattle spring, 100- rotor core, 101- axis hole, 102- permanent magnet hole, 103- are permanent Magnet, 104- armature winding.
Specific embodiment
Hereinafter, embodiments of the present invention will be described by referring to Fig.1~Fig. 8.
The example that vertical washing machine 50 is indicated in Fig. 1, has outline border 51, the outline border matrix from lower support outline border 51 52, the lid 54 that the upper cover 53 on outline border 51 and upper cover 53 are opened and closed freely.Outer groove 55 is via antirattle spring 80 with can The mode of vibrationproof is supported in sunpender 57, which hangs down from the angle supporting part 58 for the upper interior for being set to outline border 51.
Sink 59 is rotatably freely arranged in outer groove 55.The motor of washing dehydration is permanent magnet electric rotating Machine 1 is firmly secured to the bottom side lower surface of outer groove 55.Driving band is fastenedly connected in the shaft end of permanent magnet rotary electric machine 1 Wheel 67.
Stirring blade 61 is rotatably freely arranged in sink 59, and gear-box 64 is fixed in the outside under surface of outer groove 55 In the underface of stirring blade 61.Clutch 63 set on the lower part of gear-box 64 has driven pulley 65.The rotation of rotating electric machine 1 Turn to transmit via the band 62 being set up on driven pulley 65 and driving pulley 67 to clutch 63, thus permanent magnet electric rotating The gear 66 of the rotation steering box 64 of machine 1 transmits.
It is fastened with stirring blade 61 in the inside output shaft of gear-box 64, and output shaft is fastened with sink 59 on the outside.
The driving rotation of permanent magnet rotary electric machine 1 is switched over by clutch (rotation transmitting switching mechanism) 63.It is logical The switching for crossing clutch (rotation transmitting switching mechanism) 63 to transmit the rotation of permanent magnet rotary electric machine 1 to stirring blade 61 Turn or transmit to sink 59 and stirring blade 61 rotation of permanent magnet rotary electric machine 1.
The washings in sink 59 is washed using the stirring rotation of stirring blade 61.Utilize sink 59 High speed rotation to carry out centrifugal dehydration to the washings in sink 59.
In the dehydration of washings, 1 high speed rotation of rotating electric machine is carried out from the dewatering hole 68 for the main body for being set to sink 59 Centrifugal dehydration.Since sink 59 has balancer 60 on top, so when carrying out centrifugal dehydration, to the inclined of generation washings The abnormal vibrations when imbalance caused by one side are mitigated.
The opening portion on the top for being set to sink 59 is opened and closed in lid 54, to be removed or placed into washings.
Control base board 69 is set to upper cover 53, has operation panel 70 on the surface of control base board 69, and is able to carry out laundry The running operation of machine 50.
Water level sensor 71 is configured at the back side of upper cover 53.Water level sensor 71 is via pressure pipe 72 and air collector 73 Air chamber connection.The water level for the washing water being accumulated in outer groove 55 is detected by the variation of hydraulic pressure by water level sensor 71, The water level information is provided to control base board 69, to control water supply.
Water filling shell 74 is connect via water supply electromagnetic valve 75 with water supply hose 76.The water of water supply hose 76 and supply tap water Faucet connection.Tap water because water supply electromagnetic valve 75 it is unlimited due to pass through water filling shell 74 by injection sink 59.
Outer capping 77 is set to the top of outer groove 55.As such as flowering structure, even if the tap water that is, from water filling shell 74 flowed out To the lateral offset of sink 59, it can also be directed to outboard cover 77 and flow out to outside machine without getting floor wet, thus whole quilts The water of supply is by injection sink 59.
Drain solenoid valve 78 is connected to via scupper hose 79 with the discharge outlet for the bottom for being set to outer groove 55.In washing, rinsing Water after use because drain solenoid valve 78 it is unlimited due to pass through scupper hose 79 and be discharged to outside machine.
The driving source that is, permanent magnet rotary electric machine 1 of above-mentioned vertical washing machine 50 are connected in peripheral side with power supply Device box 29 and neutral point connector box 30.Also, there is cooling fan 27 in end.
The outside drawing of the permanent magnet rotary electric machine 1 of Fig. 1 is indicated in Fig. 2.Permanent magnet rotary electric machine 1 is via subsidiary The bolt hole 3 of the fixation member 4 of the shell 2 of fixation member and be set to outline border 51 rotating electric machine erecting bed (not shown) use spiral shell Bolt fixes (not shown).Power connector box 29 and neutral point connector box 30 are extended with from the notch 6 of shell 5.Herein, attached Shell 2, shell 5 with fixation member, from plate forming, are formed with notch 6, bolt hole 3 by punching press on the way wherein.Also, from Shell 5 protrudes axis 8, it is seen that stator core 7 between the shell 2 and shell 5 of subsidiary fixation member, in stator core 7 Lower part it is seen that not be attached to connector box insulating end plate 9.
Herein, it is separated with 90 degree of mechanical angle with fixation member 4 due to power connector box 29 and neutral point connector box 30, So even if being intended to that permanent magnet rotary electric machine 1 is fixed on to outline border 51 and is inserted into bolt (not shown) in bolt hole 3, the spiral shell Bolt, power connector box 29 and neutral point connector box 30 will not interfere.
Fig. 3 is the outside drawing of the permanent magnet rotary electric machine after the shell for removing Fig. 2, and Fig. 4 is the permanent magnet of Fig. 1 The perspective view of the stator of rotating electric machine.In stator in present embodiment, firstly, stator core 7 includes two shapes 7a, 7b, Insulating end plate 10 with the insulating end plate 9 and subsidiary connector box that are not attached to connector box, power connector box 29 and neutrality Point connector box 30 is integrally formed with insulating end plate 10, and has coil supports portion 10a.In addition, in the outer of insulating end plate 10 There is the bolt fixed part 32 that Hall sensor substrate package 19 is positioned or fixed, pin protrusion 31 in diameter side.
Hall sensor substrate package 19 is fixed on insulating end plate 10 by bolt 20.In Hall sensor substrate package 19 Sensor base plate 21 is accommodated, has input-output line 22 to outside export.Input-output line 22 have power supply, ground connection, with U phase armature The corresponding a phase of winding exports, and and the corresponding b phase of V phase armature winding exports and c phase corresponding with W phase armature winding exports Five.Sensor base plate 21 is fixed in Hall sensor substrate package 19 by protrusion 23.
Fig. 5 is the stator core shape graph of permanent magnet rotary electric machine.In figure, Fig. 5 (A) indicates the shape of stator core 7b Shape is the tooth 12 erected from core-back 11 towards internal side diameter.In core-back 11, positioned at the central axis top external diameter side of tooth 12 Be fixation hole 13, the outside diameter of similar three teeth 12 is equipped with 13a, 13b, 13c on the diagonal.Also, in tooth 12 Diameter side is formed with the inhibition hole 15 of armature reaction.Ha is slot opening width.Armature winding 104 is by U phase winding 104a, V phase Winding 104b and W phase winding 104c is constituted, in the slot 16 of insulating end plate 9,10 and the insulation formed by slot liner (not shown) It is interior, three-phase windings 7 are wound using machinery.
Also, the fixation hole 13 of the fixed projection of insulating end plate 9,10 and stator core 7 is consistent, and fixed insulating end plate 9, 10。
Fig. 5 (B) indicates the shape of stator core 7a, and the difference of Fig. 5 (A) and Fig. 5 (B) are the presence or absence of fixation hole 13 and slotting Channel opening width Hb.Herein, from figure also it is found that be set as Ha > Hb, increase necessary torque.
Fig. 5 (C) indicates the shape of stator core 7b, identical as Fig. 5 (A).
Fig. 6 is the outside drawing of Hall sensor substrate package 19.Hall sensor substrate package 19 by resin PBT or PET manufacture, be formed with bolt hole 26, pin insertion hole 27 in outside diameter, its internal side diameter there are sensor pocket shell 24 (by 24a, 24b, 24c are constituted), it is further formed with substrate package 25 thereunder.In addition, in the two sides of sensor pocket shell 24 The portion positioning L 28 of the positioning of Hall sensor substrate package 19 is carried out equipped with the coil supports portion 10a for being embedded in insulating end plate 10 (being made of 28a, 28b, 28c).
Fig. 7 is the figure that Hall sensor substrate package 19 is fixed on insulating end plate 10.Hall sensor substrate package 19 Outside diameter is fixed on bolt fixed part 32 by bolt 20, and pin protrusion 31 is inserted into pin insertion hole 27 to position. On the other hand, there is sensor pocket shell 24 as shown in Figure 6 in the internal side diameter of Hall sensor substrate package 19, be set to The positioning portion L 28 of the two sides of sensor pocket shell 24 is inserted into the coil supports portion 10a of insulating end plate 10.In this way, in this reality It applies in mode, Hall sensor substrate package 19 is configured to that it is positioned and is fixed from internal-and external diameter side.That is, due to inside Hall sensor substrate package 19 is installed on insulating end plate in position at two by this for diameter side and outside diameter, so making to wash when dehydration It washs in permanent magnet rotary electric machine 1 used in the high-speed rotating washing machine of slot 59, also can firmly fix hall sensing Device substrate package 19.
The radial longitudinal section view of the permanent magnet rotary electric machine of present embodiment is indicated in Fig. 8.In rotor core 100 Hot charging or indentation have axis 8 in axis hole 101, and the permanent magnet 103 in permanent magnet hole 102 inserted with U-shaped.In stator The axial ends of iron core 7 is fixed with the insulating end plate 9 for encircling coil supports portion 9a, guide wall 17, guide groove 18 and has line Enclose the insulating end plate 10 of supporting part 10a.Bolt fixed part 32 is fixed on by bolt 20 to pass in the fixed Hall of insulating end plate 10 Sensor substrate package 19, the Hall sensor substrate package 19 are positioned by pin protrusion 31.
Sensor base plate 21 is accommodated in Hall sensor substrate package 19, substrate package 25 accommodates Hall IC 33, right It is detected the position of permanent magnet 103.Since the Hall IC 33 is included in the opening width Ha of stator core 7a, so separate Armature winding 104.
According to the present embodiment, since the axial end portion of sensor base plate 21 and rotor core 100 is opposed to configure, so Far from armature winding 104.Therefore, the output of Hall IC 33 will not because come from frequency converter (not shown) electrical noise due to disorder, from And there is the advantages of capable of being stably driven with permanent magnet rotary electric machine.Herein, in the present embodiment, sensor base plate 21 is not It is to be entirely located in rotor-side, a part of sensor base plate 21 is located at stator side (referring to Fig. 8).But sensor base plate 21 Largely, at least more than half is not configured at stator side and is configured at rotor-side.In the present embodiment, will prolong from Hall IC 33 The position of sensor base plate 21 is fixed in the terminal for the multiple conducting wires stretched near internal side diameter as datum mark, is leaned on than the datum mark It is Chong Die with rotor that the sensor base plate 21 of internal side diameter is configured to axis projection.
Also, in the present embodiment, since Hall sensor substrate package 19 is in many places of internal side diameter and outside diameter position It sets and is stably mounted at insulating end plate, so Hall sensor substrate package 19 is also difficult even if being allowed to high speed rotation in dehydration To loosen because of vibration, in this point, also inhibit the influence of the noise of frequency converter.

Claims (3)

1. a kind of permanent magnet rotary electric machine has stator, which is configured to, and stator core is by multiple teeth and core-back It constitutes, insulating end plate is equipped in the axial ends portion of said stator iron core, via the insulating end plate in a manner of surrounding above-mentioned tooth Implement the armature winding for concentrating winding;And it is rotatably freely supported with and turns via defined gap in the inner circumferential of said stator Son, the rotor accommodate permanent magnet in the multiple permanent magnets insertion hole for being formed in rotor core,
Above-mentioned permanent magnet rotary electric machine is characterized in that,
Be fixed with the Hall sensor substrate package for detecting the position of above-mentioned permanent magnet in above-mentioned insulating end plate, and with it is above-mentioned The axial end portion of rotor-side is opposed to configured with the sensor base plate for being installed on above-mentioned Hall sensor substrate package,
Sensor pocket shell is formed in the internal side diameter of above-mentioned Hall sensor substrate package, further in above-mentioned Hall sensor The lower section of substrate package and shell is accommodated compared to the sensor formed outside substrate for accommodating sensor base plate by internal side diameter Shell,
The coil supports portion of the above-mentioned insulating end plate of insertion is equipped in the two sides that the sensor accommodates shell to carry out above-mentioned Hall The portion positioning L of the positioning of sensor base plate shell.
2. permanent magnet rotary electric machine according to claim 1, which is characterized in that
Using the wide component in the slot opening portion of said stator iron core and narrow component, and above-mentioned Hall sensor substrate package Sensor pocket shell be configured to it is consistent with the wide component in slot opening portion.
3. a kind of washing machine, be supported on outline border outer groove with having vibrationproof, the sink being rotatably freely arranged in the outer groove And the permanent magnet rotary electric machine for rotating the sink,
Above-mentioned washing machine is characterized in that,
Above-mentioned permanent magnet rotary electric machine has stator, which is configured to, and stator core is by multiple teeth and core-back structure At, it is equipped with insulating end plate in the axial ends portion of said stator iron core, it is real in a manner of surrounding above-mentioned tooth via the insulating end plate The armature winding for concentrating winding is applied;And it is rotatably freely supported with and turns via defined gap in the inner circumferential of said stator Son, the rotor accommodate permanent magnet in the multiple permanent magnets insertion hole for being formed in rotor core,
The Hall sensor base for detecting the position of above-mentioned permanent magnet is installed in the inner circumferential side of above-mentioned insulating end plate and peripheral side Plate shell, and be opposed to the axial end portion of above-mentioned rotor-side configured with the biography for being installed on above-mentioned Hall sensor substrate package Sensor substrate,
Sensor pocket shell is formed in the internal side diameter of above-mentioned Hall sensor substrate package, further in above-mentioned Hall sensor The lower section of substrate package and the substrate package for accommodating sensor base plate is formed in internal side diameter,
The coil supports portion of the above-mentioned insulating end plate of insertion is equipped in the two sides that the sensor accommodates shell to carry out above-mentioned Hall The portion positioning L of the positioning of sensor base plate shell.
CN201510624246.0A 2014-10-14 2015-09-25 Permanent magnet rotary electric machine and washing machine Active CN105529873B (en)

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JP2014209616A JP6419522B2 (en) 2014-10-14 2014-10-14 Permanent magnet rotating electric machine and washing machine
JP2014-209616 2014-10-14

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CN105529873B true CN105529873B (en) 2018-11-20

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Publication number Priority date Publication date Assignee Title
FR3054389B1 (en) * 2016-07-21 2020-09-04 Valeo Systemes De Controle Moteur SENSOR HOLDER PART AND DETECTION DEVICE INCLUDING SUCH A SENSOR HOLDER PART

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CN103545965A (en) * 2010-01-12 2014-01-29 日本电产株式会社 Motor and motor manufacturing method

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JP2000308320A (en) * 1999-04-19 2000-11-02 Toshiba Tec Corp Commutatorless motor
JP2010200420A (en) * 2009-02-23 2010-09-09 Mitsuba Corp Outer rotor type rotating electric machine
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CN103545965A (en) * 2010-01-12 2014-01-29 日本电产株式会社 Motor and motor manufacturing method

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JP6419522B2 (en) 2018-11-07
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