CN101267133A - Electromotor - Google Patents
Electromotor Download PDFInfo
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- CN101267133A CN101267133A CNA2008100077968A CN200810007796A CN101267133A CN 101267133 A CN101267133 A CN 101267133A CN A2008100077968 A CNA2008100077968 A CN A2008100077968A CN 200810007796 A CN200810007796 A CN 200810007796A CN 101267133 A CN101267133 A CN 101267133A
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- washings
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Abstract
The invention provides an electric motor whose configuration is as following: an annular stator and an outer annular rotor are included; the stator is molded by resin material; the outer annular rotor is disposed along the periphery surface of the stator, and is molded by the resin material; at least a first gap inspecting hole for inspecting the gap size between the stator and the outer rotor is arranged at the end face of a resin molded body having at least an upward axis on the outer rotor.
Description
Technical field
The present invention relates to a kind of be suitable for washing machine etc., have the stator that is installed on fixed part and be installed on the motor of the rotor of rotating shaft.
Background technology
Use Figure 11～Figure 13 explanation to have the drum type washing machine of motor in the past.Figure 11 is the cutaway view that the drum type washing machine of inner-rotor type motor is in the past adopted in expression.In addition, Figure 12 is the cutaway view that the drum type washing machine of outer rotor type motor is in the past adopted in expression, and Figure 13 is the rearview of outer rotor type motor in the past.
As shown in figure 11, drum type washing machine 50a adopts the motor 55a with stator 60a and rotor 61a; As shown in figure 12, drum type washing machine 50b adopts the motor 55b with stator 60b and rotor 61b.In both cases, stator 60a, the 60b of motor 55a, 55b be installed in respectively tank 52 the back side, be outer bottom, rotor 61a, 61b are installed on the rotating shaft 62 of swing roller 54 respectively.
As Figure 11, shown in Figure 12, drum type washing machine 50a, 50b are utilizing suspension structure to dispose swing roller 54 in by the tank 52 of elastic bearing in body of the washing machine 51, and this swing roller 54 is formed with many holes 53.And, utilize motor 55a, 55b to drive swing roller 54 rotations, open be arranged at body of the washing machine 51 face side switching freely the door 56, thereby, can in swing roller 54, take out washings or washings is put into swing roller 54 by the front openings portion of tank 52 and the front openings portion of swing roller 54.
In addition, opening door 56, in swing roller 54, dropping into washings and washing agent, during entry into service, in tank 52, supplying water from supply channel 57.Then, supply with the water that comes and pass through hole 53, also in swing roller 54, import needed amount.
Utilizing motor 55a, 55b to drive swing roller 54, when it was rotated with predetermined rotational speed, the washings that is contained in the swing roller 54 was hung on the stirring projection 58 that is arranged at swing roller 54 inner peripheral surfaces, was stirred along direction of rotation.Then, carry out washing step, that is, washings is fallen from suitable height, it is applied the effect of washing of beating, thereby wash.
After washing step, discharge dirty washings from discharge pipe line 59, use the new water that comes of supplying with to carry out rinse step, when rinse step finishes, make swing roller 54 high speed rotating, implement dehydration.Control sequence according to the rules automatically performs these each steps.
Japanese kokai publication hei 10-263271 communique discloses such type of drive, that is, at the tank back side, utilize vee-belt to rotate to the swing roller transmission the 1st motor and the 2nd motor mounting.At this, the 1st motor can drive swing roller to the both forward and reverse directions rotation, and it can be rotated to both forward and reverse directions with the 1st rotary speed, thereby carries out washing step, rinse step.In addition, the 2nd motor make swing roller with the 2nd rotary speed to unidirectional continuous rotation, thereby carry out dehydration.
TOHKEMY 2006-43105 communique discloses such type of drive: the motor that will be installed on the tank back side is connected with the rotating shaft of swing roller, directly transmits the rotation of motor to the rotating shaft of swing roller.
TOHKEMY 2005-168116 communique discloses such mode: make the motor that is installed on the tank back side for dispose the inner-rotor type motor of rotor along the inner peripheral surface of stator, drive rotary drum rotating.
And TOHKEMY 2004-216166 communique discloses such mode: the external-rotor motor driving rotary drum rotating that disposes rotor along the outer peripheral face of stator.
As shown in figure 13, stator 60b and rotor 61b form by molded, and the installation foot 63 that utilizes screw or bolt 64 will be formed on the moulded parts of stator 60b is installed in the outer bottom of tank 52, thereby stator 60b is installed in the outer bottom of tank 52.
But, for motor 55a, 55b being used for the swing roller 54 of head roll formula washing machine 50a, 50b, as long as stator 60a, 60b are installed on the fixed part of any place of body of the washing machine 51, and be not limited to stator 60a, 60b are installed on tank 52, rotor 61a, 61b are mounted to be connected with the various axles that are used to drive swing roller 54 get final product.
In any case, as Figure 11, shown in Figure 12, in motor 55a, 55b that such drum type washing machine 50a, 50b are adopted, all are the fixed parts that stator 60a, 60b are installed in the body of the washing machine 51 at tank 52 back sides etc.So, utilize rotor 61a, 61b are directly installed on such method on this fixed part rotating shaft 62 outstanding, swing roller 54, stator 60a, 60b and rotor 61a, 61b are fitted together.
For install to this drum type washing machine 50a, 50b, assembling motor 55a, 55b, need guarantee that stator 60a, 60b equate with gap size between rotor 61a, the 61b.And, need rotor 61a, 61b and rotating shaft 62 be fastened by rotation stop devices such as spline piece, keys.
In the past, stator 60a, 60b were installed on the body of the washing machine 51 in advance.Then, while rotor 61a, 61b after guaranteeing to magnetize and the gap size between the stator 60a, the 60b that install equate, make the rotation stop device contraposition of rotor 61a, 61b and rotating shaft 62, make rotor 61a, 61b be embedded in rotating shaft 62.
But for the motor 55b of external-rotor-type, the outside of stator 60b is covered by the resin molded body of rotor 61b, is in the state that is difficult to estimate the gap size between stator 60b and the rotor 61b.Equate, make the rotation stop device contraposition of rotor 61b and rotating shaft 62 at the rotor 61b after guarantee to magnetize and the gap size between the stator 60b, be embedded in the operation of stator 60b, guarantee that rotor 61b equates to exist bigger difficulty with gap size between the stator 60b.Therefore, must carry out operation by skilled operating personnel carefully.
In addition, becoming under the situation of rotor 61b near the state of stator 60b, need overcome, carrying out position correction along desiring to make the further magnetic attracting force of the directive effect of close stator 60b of rotor 61b.This correction operation also will take efforts and require skilled operation, very difficulty.
In addition, because operating efficiency is relatively poor and also need spended time, therefore, assembly cost is higher, and, cause assembly precision to worsen easily.That is, there are such problem in installation in the past, assemble method: even think that in appearance rotor 61b is embedded in stator 60b in correct position, also can fail to guarantee gap size and the consistent situation of initial stage precision of rotor 61b and stator 60b.
Summary of the invention
Being configured to of motor of the present invention: comprise circular stator and circular external rotor; Said stator is formed by molded of resin material; Above-mentioned external rotor is in along the position of stator outer peripheral face, is formed by molded of resin material; Be positioned at external rotor at least axially on the end face of resin molded body on, be provided with the 1st a clearance inspection hole that is used to check the gap size between stator and the external rotor at least.
There is such situation in this motor that is provided with external rotor along the stator outer peripheral face: the resin molded body covering stator of external rotor becomes the state that is difficult to estimate the gap size between stator and the external rotor.But the end face of the resin molded body of setting at least vertically at external rotor is provided with the 1st a clearance inspection hole that is used to check this gap size at least.
Therefore, can utilize the 1st clearance inspection hole to check gap size between at least 1 place's stator and the external rotor.As a result, in the installation of motor, assembling operation, while utilize the 1st clearance inspection hole to check gap size, implement installation, assembling operation, thus can guarantee gap size consistent with the initial stage precision when the end of job.
In addition, for fail to guarantee between stator and the external rotor gap size in a circumferential direction with the consistent situation of initial stage precision, while can confirm gap size, carry out the positioning operation of rotor again.Therefore, both shortened the activity duration, can guarantee again that stator was consistent with gap size and initial stage precision between the external rotor.
Description of drawings
Fig. 1 is the cutaway view of major part structure of the drum type washing machine of the expression motor of using embodiment of the present invention.
Fig. 2 is the rearview of seeing when the drum type washing machine of having used above-mentioned motor is inner.
Fig. 3 is the cutaway view that the above-mentioned motor mounting of expression is divided in the approximate half of the part of drum type washing machine.
Fig. 4 is that the above-mentioned motor mounting of expression is in the cutaway view of the state at the tank back side.
Fig. 5 has decomposed the stator of above-mentioned motor and the stereogram after the rotor.
Fig. 6 is the stator of above-mentioned motor and the vertical view cutaway drawing of rotor.
Fig. 7 is the vertical view of the rotor of above-mentioned motor.
Fig. 8 is the rearview of the rotor of above-mentioned motor.
Fig. 9 A is with the number of assembling steps figure of above-mentioned motor mounting when the drum type washing machine main body.
Fig. 9 B is with the number of assembling steps figure of above-mentioned motor mounting when the drum type washing machine main body.
Fig. 9 C is with the number of assembling steps figure of above-mentioned motor mounting when the drum type washing machine main body.
Fig. 9 D is with the number of assembling steps figure of above-mentioned motor mounting when the drum type washing machine main body.
Fig. 9 E is with the number of assembling steps figure of above-mentioned motor mounting when the drum type washing machine main body.
Fig. 9 F is with the number of assembling steps figure of above-mentioned motor mounting when the drum type washing machine main body.
Fig. 9 G is with the number of assembling steps figure of above-mentioned motor mounting when the drum type washing machine main body.
Figure 10 A is the figure that the driving order of the positive and negative continuous rotation drive pattern in the drum type washing machine with above-mentioned motor is described.
Figure 10 B is the figure that the driving order of the positive and negative continuous rotation drive pattern in the drum type washing machine with above-mentioned motor is described.
Figure 10 C is the figure that the driving order of the positive and negative continuous rotation drive pattern in the drum type washing machine with above-mentioned motor is described.
Figure 10 D is the figure that the driving order of the positive and negative continuous rotation drive pattern in the drum type washing machine with above-mentioned motor is described.
Figure 10 E is the figure that the driving order of the positive and negative continuous rotation drive pattern in the drum type washing machine with above-mentioned motor is described.
Figure 10 F is the figure that the driving order of the positive and negative continuous rotation drive pattern in the drum type washing machine with above-mentioned motor is described.
Figure 10 G is the schematic diagram that the washings action in the drum type washing machine with above-mentioned motor is described.
Figure 11 is the cutaway view that the drum type washing machine of inner-rotor type motor is in the past adopted in expression.
Figure 12 is the cutaway view that the drum type washing machine of outer rotor type motor is in the past adopted in expression.
Figure 13 is the rearview of outer rotor type motor in the past.
Embodiment
Below, the preferred forms of motor of the present invention is described with reference to the accompanying drawings.In addition, illustration all should be thought in all aspects of following disclosed execution mode, does not have any restriction.Technical scope of the present invention is interpreted as, and is not by the disclosed content representation of execution mode, but is represented by the record of patent claims, also is included in meaning and all interior changes of scope of being equal to patent claims.
Fig. 1 is the cutaway view of major part structure of the drum type washing machine of the expression motor of using embodiment of the present invention, and Fig. 2 is the rearview of seeing when the drum type washing machine of using above-mentioned motor is inner.
As shown in Figure 1, the drum type washing machine 1 with motor 5 of embodiment of the present invention has the essential structure of having stated.That is, drum type washing machine 1 disposes swing roller 4 in the tank 3 that utilizes the suspension structure elastic bearing in washing machine shell 2, and this swing roller 4 is formed with many through hole 4c.And, utilize motor 5 to drive swing roller 4 rotations, open be arranged at washing machine shell 2 face side switching freely the door 6, thereby, can in swing roller 4, take out washings or washings is put into swing roller 4 by the front openings portion of tank 3 and the front openings portion of swing roller 4.
Then, carry out following washing step.Open door 6, to swing roller 4 in, drop into washings,, supply with next water and pass through through hole 4c, also the needed amount of importing in swing roller 4 when during entry into service, to tank 3 in, supplying water from supply channel 7 along with dropping into washing agent.Then, utilize motor 5 to drive swing roller 4, make it with for example rotation of the rotary speed about 40rpm.The washings that is contained in the swing roller 4 is hung on the stirring projection 4d that is arranged at swing roller 4 inner peripheral surfaces, is stirred along direction of rotation, falls from suitable height, is applied in the effect of washing of beating, thereby washs.
After this washing step, discharge dirty washings from discharge pipe line 8, use the new water that comes of supplying with to carry out rinse step.When rinse step finishes, make swing roller 4 with for example, the speed high speed rotating about 1000rpm is carried out dehydration.Control sequence according to the rules automatically performs these each steps.
In addition, the drum type washing machine 1 of embodiment of the present invention utilizes the air in air blast 4 attraction tanks 3 and the swing roller 4.So drum type washing machine 1 is known as roller washing and drying machine, this roller washing and drying machine dehumidifies successively and heats, and the circulation air-supply path 9 of carrying dry high temperature air repeatedly in tank 3 and swing roller 4 is housed.In addition, drum type washing machine 1 also carries out baking step automatically after above-mentioned dehydration.
Such drum type washing machine 1 is abideed by mode initialization, control program from guidance panel 19 in order to automatically perform each step.That is, control part 18 is made of the control basal plate that is equiped with microcomputer etc., has automatic control motor 5, supply channel 7, discharge pipe line 8, circulation air-supply path 9, carries out the function of washing step, rinse step, baking step.
In addition, supply channel 7 can in time supply water shown in the solid line arrow by opening and closing electromagnetically operated valve, can also utilize the water supply washing agent in the input washing agent resettlement section (omitting diagram) in tank 3 in time.Discharge pipe line 8 can finish at washing step, rinse step end etc. in case of necessity, shown in dash-dot arrows, carry out draining by opening and closing electromagnetically operated valve.
In circulation air-supply path 9, utilize air blast 14 that the air dotted arrow as shown in Figure 1 and Figure 2 in tank 3 and the swing roller 4 is circulated like that.And circulation air-supply path 9 has filter 17, evaporator 12 and condenser 13; Above-mentioned filter 17 is caught from airborne the end of a thread of importing of tank 3 and swing roller 4 etc. and is carried out dedusting; Importing air after 12 pairs of dedustings of above-mentioned evaporator dehumidifies; Air behind above-mentioned condenser 13 heating and dehumidifications makes it become dry high temperature air.In addition, circulation air-supply path 9 disposes air blast 14 in the downstream of condenser 13, is difficult to be subjected to the influence of moisture.In illustrated embodiment, evaporator 12, condenser 13 utilize compressor 15 to make refrigerant cycle, make itself and circulating air carry out heat exchange, constitute heat pump cycle device 16.But the heating, drying device is not limited to said apparatus.
Particularly, according to inventor's etc. experience, it is 20 ± 10 ° by making tilt angle theta, even the height from child (except the child) to the adult there are differences, even or use the people of wheelchair, also can obtain to be easy to most take out or put into the state of washings operation.In addition, also have such advantage: though supply in the swing roller 4 water overleaf side accumulate less amount, also can obtain darker retaining state.
In addition, in example shown in Figure 1, the ground, the back side that rotating shaft 20 is directly connected in swing roller 4 transmits the rotation of motor 5, but is not limited thereto.
In addition, the washing machine of using motor 5 of the present invention also can be drum type washing machine with drying function, swing roller by the drum type washing machine of vertical support rotatably, not have the washing machines such as washing machine of swing roller.
And, with the mode of washing of washing machine, type of drive not on an equal basis not correspondingly, no matter with which kind of form, be installed on which part of washing machine, can application of electric motors 5.And, making rotor 25 drive shaft rotating of motor 5, the mode to the driven object transmission rotation of the supporting construction of rotating shaft 20, swing roller 4 etc. also needn't specify.
Then, describe the installation constitution of the motor 5 of drum type washing machine 1 in detail according to Fig. 3～Fig. 8.Fig. 3 is the cutaway view that the motor mounting of expression embodiment of the present invention is divided in the approximate half of the part of drum type washing machine, and Fig. 4 is that the above-mentioned motor mounting of expression is in the cutaway view of the state at the tank back side.In addition, Fig. 5 has decomposed the stator of above-mentioned motor and the stereogram after the rotor, and Fig. 6 is the stator of above-mentioned motor and the vertical view cutaway drawing of rotor.And Fig. 7 is the vertical view of the rotor of above-mentioned motor, and Fig. 8 is the rearview of the rotor of above-mentioned motor.
As shown in Figure 3, Figure 4, motor 5 has the rotor 25 on stator 21 and the back side 3a 20 that be connected with rotating shaft, be bearing in tank 3 in the mode freely of rotating.At this, the stator that stator 21 is fixed in the back side 3a of tank 3 is installed on the pedestal 33, utilizes along stator a plurality of erecting devices 30 that the circumferencial direction of pedestal 33 is disposed on this installation pedestal 33 to be installed and to be installed.
As shown in Figure 6, stator 21 has stator core 23, and this stator core 23 comprises interior utmost point tooth 23a, outer utmost point tooth 23b and with the roughly circular yoke 23c that links together between utmost point tooth 23a in these and the outer utmost point tooth 23b.And stator 21 is wound with winding 24 on yoke 23c, and stator 21 integral body are formed by molded of resin material, are formed with resin molded body 22.
In addition, Fig. 6 represents to adopt the situation along the Circular Winding mode of this yoke 23c that radially winding 24 is wrapped in of yoke 23c.
As Fig. 3, Fig. 4 and shown in Figure 6, the external rotor 25b that rotor 25 has the internal rotor 25a that is provided with along the inner peripheral surface of stator 21 (the inner peripheral surface 22b of resin molded body 22) and is provided with along the outer peripheral face (the outer peripheral face 22c of resin molded body 22) of stator 21.Internal rotor 25a have the inner magnet 27a that faces mutually with interior utmost point tooth 23a and with the corresponding inner iron core 28a of inner magnet 27a.In addition, external rotor 25b have the outer magnet 27b that faces mutually with outer utmost point tooth 23b and with the corresponding outer 28b unshakable in one's determination of outer magnet 27b.And rotor 25 integral body are formed by molded of resin material, are formed with resin molded body 26.
Like this, stator 21 is formed by molded of resin material, be comprise roughly circular interior circular.In addition, have in position along stator 21 outer peripheral faces form by molded of resin material, comprise roughly circular at interior circular external rotor 25b.In addition, have in position along stator 21 inner peripheral surfaces form by molded of resin material, comprise roughly circular at interior circular internal rotor 25a.
Resin molded body 22 has roughly circular shape, on axially being provided with along it and being in end face 22a with swing roller 4 opposition sides, by a plurality of recess 22d that radially extend are set, thereby is formed with concaveconvex shape.In addition, the outer edge of resin molded body 26 supporting external rotor 25b, and the central portion of resin molded body 26 is fixed on the rotating shaft 20, forms the bowl-shape top cover portion 26a of circular that heaves towards foreign side in the central portion side between outer edge and the central portion.And resin molded body 26 is provided with a plurality of protuberance 26b radially that extend, shown in Figure 8 at the inner surface of the top cover portion 26a that faces mutually with stator 21, is provided with a plurality of openning 26c along the circumferencial direction of top cover portion 26a.
In resin molded body 26, top cover portion 26a still is covering stator 21 and rotor 25, along the end face of the axial setting of internal rotor 25a and external rotor 25b.
And as Fig. 7, shown in Figure 8, in resin molded body 26, several opennings that are arranged among a plurality of openning 26c on the top cover portion 26a radially enlarge width.The openning 26c that these width have enlarged plays the effect of the 1st clearance inspection hole 26d that is used to check the gap size between stator 21 and the external rotor 25b.
In resin molded body 26, face the end face portion that is provided with vertically mutually with internal rotor 25a, also be provided with the 2nd clearance inspection hole 26e of the gap size that is used to check between stator 21 and the internal rotor 25a.The 1st clearance inspection hole 26d, the 2nd clearance inspection hole 26e are formed at such position: and be formed at the position of practising physiognomy and extend vertically over the ground in the gap between stator 21 and internal rotor 25a, stator 21 and the external rotor 25b respectively.
That is, the 1st clearance inspection hole 26d is arranged on along the end face of the resin molded body 26 that at least axially is provided with of external rotor 25b.In addition, the 2nd clearance inspection hole 26e is arranged on along the end face of the resin molded body 26 that at least axially is provided with of internal rotor 25a.
Adopt above structure, as shown in Figure 4,1 stator 21, with internal rotor 25a that disposes along inner circumferential surface 22b, outer peripheral face 22c and external rotor 25b between the electromagnetic force that produces, play and the identical effect of distributed winding type motor.Therefore, can make rotor 25 with respect to stator 21 rotations, and can not produce bigger noise, vibration.
In addition, utilize the free space between the bearing portion 31 inner peripheral surface 22b side be formed at stator 21, stator 21 and rotating shaft 20 to dispose internal rotor 25a.As a result, even the torque of increasing motor 5, load raises, and also can drive swing roller 4 rotations by rotating shaft 20 under stable status.
The rotor 25 of the motor 5 of embodiment of the present invention has external rotor 25b along the outer peripheral face 22c of stator 21 at least.Stator 21 is covered by rotor 25 from end face 22a and outer peripheral face 22c, and this end face 22a is positioned at and the opposite side of direction that stator 21 is installed on stator installation pedestal 33.Therefore, heat is easy to be trapped in the gap of stator 21 and rotor 25, but by improving the thermal diffusivity from the end face 22a of the resin molded body 22 with concaveconvex shape heat radiation, can suppress motor 5 heatings effectively.
In addition, utilize concaveconvex shape, the protuberance 26b be formed at end face 22a to confuse and the air-flow of following rotor 25 flowing of quadrature roughly.And, owing to can more ventilate, therefore, can suppress stator 21 heatings more effectively, with 4 rotations of higher torque actuated swing roller by openning 26c.That is, the openning 26c that is used to dispel the heat is arranged on along the end face of the resin molded body 26 that at least axially is provided with of external rotor 25b.
In addition, as shown in Figure 3, metal stator is installed the back side 3a that pedestal 33 is fixed on tank 3 by modes such as bolted.The rotating shaft 20 of swing roller 4 rotatably is bearing in the bearing portion 31, and this bearing portion 31 forms runs through the central portion that stator is installed pedestal 33.
As Fig. 4, shown in Figure 5, a plurality of erecting devices 30 are connected this installation foot 32 stator and bolt 34 on the pedestal 33 etc. is installed is connected the apparatus class and constitutes by being formed extended at both sides in the installation foot 32 on this outer peripheral face 22c and utilizing to be threaded to foreign side along the outer peripheral face 22c of resin molded body 22.At this, a plurality of erecting devices 30 are stator 21 to be installed in stator device on the pedestal 33 is installed.
And, as shown in Figure 4, on installation foot 32, be provided with installing hole 32a.Make bolt 34 from passing this installing hole 32a, and be connected with screw 33a threads engage ground that stator is installed pedestal 33 with the direction of tank 3 opposite sides, thereby, stator 21 can be fixedly mounted on the back side 3a (stator is installed pedestal 33) of tank 3.
In addition, as Fig. 4, Fig. 5, shown in Figure 8, the central portion at top cover portion 26a in the rotor 25 is formed with installing hole 26f, and this installing hole 26f embeds metal hub 36 to be arranged and to form.At this, the top cover portion 26a of resin molded body 26 covers on stator 21 and axial end 22a tank 3 opposite sides.
By will fastening by rotation stop device that constitute or that constitute by key and keyway, and opened embedding installing hole 26f by the rearward end of the rotatably mounted rotating shaft 20 of bearing portion 31 by top cover portion 26a and rotating shaft 20 both sides' spline part 26g, 20a.Afterwards, compress gasket 37 on the pad, utilize connection apparatus classes such as bolt 38 that resin molded body 26 is connected on the rotating shaft 20, thereby rotor 25 is fixedly mounted on the rotating shaft 20.
In addition, along with the assembling sequence that motor 5 is installed on the washing machine shell 2 can carry out multiple choices.In addition, the space positioner between rotation stop device, stator 21 and the rotor 25 also can adopt the whole bag of tricks.
Then, utilize among a plurality of openning 26c on the top cover portion 26a be arranged at resin molded body 26, radially enlarged the 1st clearance inspection hole 26d of width, direction is inserted gap tools for measurement such as clearance meter in it.Like this, can check gap size between 1 place's stator 21 and the external rotor 25b at least.
Equally, utilize the 2nd clearance inspection hole 26e that is arranged on the top cover portion 26a, direction is inserted gap tools for measurement such as clearance meter in it.Like this, can check gap size between 1 place's stator 21 and the internal rotor 25a at least.
Thus, for fail to guarantee between stator 21 and external rotor 25b or the internal rotor 25a gap size in a circumferential direction with the consistent situation of initial stage precision, carry out installation, the assembling operation of motor 5 again.As a result, can guarantee that stator 21 equates with gap size between external rotor 25b or the internal rotor 25a.
In addition, in the installation of motor, assembling operation, by 1st clearance inspection hole 26d, 2nd clearance inspection hole 26e checks gap size on one side, implement installation, assembling operation on one side.As a result, can guarantee when the end of job, to have the gap size consistent with the initial stage precision.
In addition, the 1st clearance inspection hole 26d also can not utilize openning 26c, but the 1st clearance inspection hole 26d is set outside openning 26c in addition.But, if form the 1st clearance inspection hole 26d, then do not need to utilize the openning 26c that has radially enlarged width in advance to reset the 1st clearance inspection hole by the width that radially expands openning 26c, can reduce manufacturing cost.
And, be the degree of replaceable air owing to usually the size of openning 26c is increased, therefore, the state in gap can be confirmed, thereby abnormality can be easily distinguished in the situation of the extremely close stator 21 of rotor etc. by range estimation.
In addition, the quantity that is provided with of the 1st clearance inspection hole 26d, the 2nd clearance inspection hole 26e is to get final product more than 1, if setting is more, then can carry out more high-precision gap size inspection, guarantees that gap size equates.But, if only the clearance inspection hole is set like that as above, check that then the needed time is elongated, the cost during manufacturing also can raise.
In order to ensure the initial stage precision, the 1st clearance inspection hole 26d, the 2nd clearance inspection hole 26e only are provided with 1 place separately and get final product.Under the situation that the 1st clearance inspection hole 26d of 1 place, the 2nd clearance inspection hole 26e respectively are set, make rotor 25 produce unbalanced radially moment in order to reduce, preferably make the 1st clearance inspection hole 26d and the 2nd clearance inspection hole 26e clip resin molded body 26 central portion be arranged on opposition side.Uneven for rotor 25 is produced, preferably the 1st clearance inspection hole 26d, the 2nd clearance inspection hole 26e are provided with respectively more than 2 places, and equate along circumferential interval.
In addition, the gap tools for measurement that inspection is adopted as gap size, be fit to use clearance meter etc. measure apparatus, by the image recognition mensuration utensil etc. of detector gap precision automatically.Be preferably, tools for measurement such as metal clearance meter are made of paramagnetic materials such as copper or stainless steels, especially are made of the higher material of intensity.
Then, according to Fig. 9 A～Fig. 9 G, the assemble method when describing motor 5 with embodiment of the present invention in detail and being installed on the drum type washing machine main body.Fig. 9 A～Fig. 9 G is with the motor mounting of the present embodiment number of assembling steps figure when the drum type washing machine main body.
In order to carry out with higher operating efficiency and to follow the assembling that such motor 5 is installed on body of the washing machine, the step shown in embodiments of the present invention employing Fig. 9 A～Fig. 9 G.That is, constitute by following the 1st step to the 3 steps.
In the 1st step, shown in Fig. 9 D, the rotor 25 that is finished by magnet 27 ( magnet 27a, 27b) magnetization shown in Fig. 9 c is combined on the stator 21, make their tablings.
In the 2nd step, shown in Fig. 9 E, the rotor 25 that is embedded in stator 21 is installed on the rotating shaft 20, shown in Fig. 9 F, rotor 25 is finally located and is entrenched on the rotating shaft 20.
In the 3rd step, shown in Fig. 9 G, the motor 5 that makes stator 21 and rotor 25 tablings and rotating shaft 20 is installed is installed in stator installs on the pedestal 33, this stator is installed on the back side 3a of tank 3 that pedestal 33 is fixed in the drum type washing machine main body.
In addition, this assemble method is an example, also can carry out suitable change according to structure of motor 5 etc.
In addition, in above-mentioned assemble method, shown in Fig. 9 A, so preceding step be need before the 1st step, carry out, that is, in the bearing portion 31 of stator installation pedestal 33, bearing 39 and oil sealing 40 are pressed into.Then, shown in Fig. 9 B, need carry out so preceding step, that is, in the bearing portion 31 of stator installation pedestal 33, be pressed into bearing 41, and load rotating shaft 20, rotatably mounted rotating shaft 20 from an opposite side.
In these assembling operations, to be pressed into facing up of bearing 41 to bearing portion 31 comparatively convenient owing to make, therefore, be preferably, Fig. 9 A be pressed into being pressed between the operation of operation and Fig. 9 B, spin upside down stator installation pedestal 33.After the operation of Fig. 9 B, motor 5 is installed on the facing up to a good of side that stator is installed pedestal 33.Therefore, in Fig. 9 A, be pressed into operation under the ventricumbent state of the installation of motor 5, overturn during Fig. 9 B after being transferred to, the installed surface that makes motor 5 does not need to overturn up afterwards.
In addition, on the basis of above-mentioned operation, in Fig. 9 C, carry out the magnetization and the magnetization management of magnet 27, and, check in Fig. 9 C, Fig. 9 D whether stator 21, the resin molded body 22 of rotor 25, resin molded body 26 peel off.In addition, when rotor in making Fig. 9 E 25 and rotating shaft 20 are chimeric, make the operation of spline part 26g, 20a contraposition between the two.When the rotating shaft among Fig. 9 F 20 is installed on rotor 25, check stator 21 and the stator 21 of the assembly of rotor 25 and the gap size of rotor 25 after chimeric.And, be accompanied by the connection torque that management is fixed in rotor 25 on the bolt 38 on the rotating shaft 20.
In addition, utilize bolt 38 that rotor 25 is connected and fixed on the operation of rotating shaft 20, can rotor 25 be carried out after being embedded in rotating shaft 20, also can carry out after pedestal 33 is installed the stator among Fig. 9 G 21 being installed on stator.
In addition, in Fig. 9 G, check the electromagnetic property of the motor 5 after assembling is finished.As the inspection item relevant with electromagnetic property, specifically, have with induced voltage to the displacement of actual value, transducer pulse duration, device for detecting rotational position 29 detected signals shown in Figure 5 with respect to sensor bias time of rotor 25, be rotor 25 rotating a circle during in pulse deviation etc.
Adopt such assemble method, owing to can carry out the 1st step and the 2nd step respectively independently, therefore, can not attend to one thing and lose sight of another and cause operational difficulty in each step.At this, in the 2nd step, Yi Bian make rotor 25 and rotating shaft 20 rotation stop device, be spline part 26g, 20a contraposition, Yi Bian make rotor 25 be embedded in rotating shaft 20.
Therefore, make under the state that the 25 chimeric operations of stator 21 and rotor can be installed mutually at other members, relatively easy operating and carry out.And, in the 1st step, make rotor 25 be embedded in stage of stator 21, need not guarantee that stator 21 equates in a circumferential direction with gap between the rotor 25.In the 2nd step, when utilizing bolt 38 that rotor 25 is fixed in rotating shaft 20, can be by apply the chimeric position that power is adjusted rotor 25 forcibly from the outside.
In addition, when making rotor 25 be embedded in stator 21, can following such positioning accuracy that improves.In the time will being used to guarantee that clamping close device that stator 21 equates with the gap size of rotor 25 is arranged on the either party of stator 21 and rotor 25 or two sides, can carry out in first step, making rotor 25 to be embedded in operation on the stator 21 more easily.
Therefore, as the gap size opportunity of checking stator 21 and stator 21 with the rotor 25 of the assembly of rotor 25 after chimeric, preferably in the 2nd step, utilize bolt 38 to carry out before rotor 25 is fixed in rotating shaft 20.If under the situation that detects the assembly of failing to guarantee that gap size is consistent with the initial stage precision, this moment from external forced the chimeric position of rotor 25 is applied power, can adjust the chimeric position of rotor 25.
In addition, while, therefore, both shortened the time, can make the motor 5 that to guarantee that stator 21 equates with gap size between the rotor 25 again owing to can confirm gap size, adjust the operation of the position of rotor 25.Also can be that rotor 25 is embedded in after the stator 21 opportunity of checking gap size.
But, in the 2nd step, Yi Bian make rotor 25 and rotating shaft 20 rotation stop device, be spline part 26g, 20a contraposition, Yi Bian rotor 25 is embedded on the rotating shaft 20.Therefore, can utilize rotating shaft 20 (comprising rotation stop device) and stator that the relative position relation that pedestal 33 limits stator 21 and rotor 25 is installed, can be at more appropriate position correction chimerism.
In addition,, also can utilize stator that installing hole 32a, other members of pedestal 33 are installed, finely tune chimeric position with comparalive ease even, need to proofread and correct under the situation of chimeric position according to checking the gap size of stator 21 with rotor 25.Therefore, can guarantee more accurately that stator 21 equates with gap size between the rotor 25.
Then, use Figure 10 A～Figure 10 G, rotation drive pattern when motor 5 with embodiment of the present invention is applied to roller washing and drying machine 1 be described, reach washings action at this moment.Figure 10 A～Figure 10 F is the figure that explanation has the driving order of the positive and negative continuous rotation drive pattern in the drum type washing machine of motor of embodiment of the present invention, and Figure 10 G is the schematic diagram that explanation has the washings action in the drum type washing machine of above-mentioned motor.
The axial situation of rotation that swing roller 4 is set with along continuous straight runs is compared, in drum type washing machine 1, swing roller 4 is arranged to its rotating shaft direction with respect to horizontal direction tilt angle theta=20 ± 10 °, according to this relation, can present the tendency that washings 70 is easy to accumulate in position lower on the rotating shaft direction.Drum type washing machine 1 has motor 5, and this motor 5 has internal rotor 25a and external rotor 25b, and has increased torque.
In addition, for by control part 18 drive controlling swing rollers 4, drum type washing machine 1 has positive and negative hook changes drive pattern, this positive and negative hook change drive pattern make swing roller 4 with the rotary speed about 40rpm～60rpm hocket repeatedly the anglec of rotation greater than 90 ° and less than 180 ° the hook of forward rapidly change, opposite arc rotation rapidly.
And, drum type washing machine 1 can be also with forward and reverse continuous rotation drive pattern, this forward and reverse continuous rotation drive pattern makes swing roller 4 with the forward and reverse alternately rotation continuously repeatedly of such rotary speed, and this rotary speed is the rotary speed that presents the action that the washings 70 that stirred because of the rotation of swing roller 4 falls from its dominant height of conducting oneself with dignity.
As the back is described in detail, it is the drive pattern that following purpose is arranged that positive and negative hook changes drive pattern: utilize washings 70 to be easy to accumulate in the tendency of lower position, reduce winding that washings 70 produces greatly, reverse, and when improving mechanical force, also be difficult to produce fold.And these two drive patterns also can be carried out in any stage of washing step, rinse step, baking step as required.
At first, the situation of carrying out positive and negative hook commentaries on classics drive pattern in washing step, rinse step is described.
Use positive and negative hook to change that drive pattern is carried out washing step, rinse step is harsh especially, it is bigger to drive load.But the motor 5 of employing embodiment of the present invention can utilize enough torques stably to drive swing roller 4 rotations.
By driving swing roller 4, make it with greater than 90 ° and carry out hook less than 180 ° the anglec of rotation and change, can be with washings 70 from Figure 10 B, Figure 10 D, the illustrated dotted line position of Figure 10 F to solid line position, stir to greatest extent to greater than 90 ° and less than 180 °.In addition, owing to change driving with forward and reverse this hook that alternately carries out of the order of Figure 10 B, Figure 10 D, Figure 10 F, Figure 10 D, Figure 10 F..., therefore, shown in Figure 10 C, 10E figure, produce deceleration regime or the on-position that is used to make the rotation counter-rotating in the final moment that stirs washings 70 or before and after it.So, can utilize by the pressure peeling force that is applied to the rotatory inertia generation on the washings 70 and the deadweight of washings 70, peel off washings 70 at moment spinning cylinder 4 inner surfaces reliably.
And, shown in Figure 10 G, utilize forward and reverse hook of replacing to change and drive, change when driving at each hook, about alternately switch washings 70 stir position, lowering position.Therefore, can improve the effect of untiing washings 70, can also apply mechanical force all parts of washings 70.
In addition, the driving load that positive and negative hook changes drive pattern is bigger, but by and with driving the lower forward and reverse continuous rotation drive pattern of loading, can alleviate mechanical load.And, can change the execution ratio of drive pattern by adjusting positive and negative hook, correct the washings 70 that in positive and negative continuous arc rotation drive pattern, produces winding, reverse, fold etc. applies uneven mechanical force to washings 70.
In addition, by to the washing under two drive patterns, in the rinsing washings 70 and with 2 kinds of different actions, can carry out the washing and the rinse step that have distinctive action in two drive patterns exponentially concurrently.2 kinds of actions are respectively to change sufficient craft that drive pattern carries out by positive and negative hook to wash action by rubbing with the hands and make washings 70 continuous motion tempestuously, do not have the uneven uniform washing action of washing by positive and negative continuous rotation drive pattern.And, only having positive and negative hook to change under the situation of drive pattern, in order to obtain bigger driving torque, power consumption increases, but by and with forward and reverse continuous rotation drive pattern, can seek province's electrification.
Then, the situation of carrying out positive and negative hook commentaries on classics drive pattern in baking step is described.But, the action of driver in the baking operation and washings 70, identical with the situation of in above-mentioned washing step, rinse step, carrying out positive and negative hook commentaries on classics drive pattern substantially.Compare with the situation of in washing step, rinse step, carrying out positive and negative hook commentaries on classics drive pattern, in baking step, carry out positive and negative hook commentaries on classics drive pattern and can alleviate some driving loads, but, then be bigger driving load if compare with forward and reverse continuous rotation drive pattern.
In baking step, carry out hook and change by driving swing roller 4, forward and reversely alternately washings 70 is stirred to one-sided top, the left and right sides of swing roller 4.Under the final moment that stirs washings 70 or deceleration regime or on-position before and after it, utilization is peeled off washings 70 in moment from the inner surface of swing roller 4 reliably by the pressure peeling force of the inertia generation of washings 70 and the deadweight of washings 70.Then, fall the left and right sides opposition side of swing roller 4, carrying out hook when change driving at every turn by making washings 70 repeatedly, about alternately switch washings 70 stir position, lowering position.As a result, can improve the effect of untiing of washings 70, also prevent washings 70 winding, reverse and be attached on swing roller 4 inner surfaces, take out washings 70 easily, and, can alleviate widely on washings 70 and produce fold.
In addition, change drive pattern, can obtain following effect by in baking step, carrying out so positive and negative hook.In the dehydration after washing step, rinse step finish, though produce sometimes washings 70 around around, reverse, pleat, attached the unfavorable condition of state thereon consumingly by being pressed in swing roller 4 inner surfaces, also can dry equably.This be because, utilize along with about alternately switch stronger untiing effect, the mechanical force that stir position and lowering position of washings 70, can when untiing washings 70 swimmingly, make the high temperature air of drying enter into washings 70 inside.
In addition, the effect of beaing when falling by washings 70 along with the effect that plays the fold of flattening, is untied washings 70 and when it is launched, can be sought the regeneration of fiber, therefore, and the sense of touch in the time of can improveing oven dry and finish.
And, in baking step, when carrying out forward and reverse continuous rotation drive pattern, can improve the contacting efficiency of washings 70 and dry air, can improve drying efficiency generally.Therefore, by also changeing drive pattern and forward and reverse continuous rotation drive pattern, can further shorten drying time with positive and negative hook.
And, can twine, reverse, be attached on swing roller 4 inner surfaces preventing that washings 70 from producing, take out washings 70 easily, and alleviate widely on washings 70 and produce fold.
Like this, can carry out the baking step of the advantage that has two drive patterns exponentially concurrently.In addition, owing to only there being positive and negative hook to change under the situation of drive pattern, need bigger torque, therefore, power consumption also increases, but by and with forward and reverse continuous rotation drive pattern, can seek province's electrification.
Like this, in the drum type washing machine 1 of the motor 5 that uses embodiment of the present invention, can by and with positive and negative hook commentaries on classics drive pattern and forward and reverse continuous rotation drive pattern, washings 70 is applied mechanical force.In addition, can carry out each step of washing step, rinse step, baking step, above steps is being washed effect, is being beaten wash effect by beaing beating of effect generation except having, and also has concurrently exponentially to have characteristics and the advantages effect, two drive patterns that prevent the effect of twining, reversing, the fold of flattening.
Claims (3)
1. a motor is characterized in that,
This motor comprises circular stator and circular external rotor; Said stator is formed by molded of resin material; Above-mentioned external rotor is in along the position of said stator outer peripheral face, is formed by molded of resin material;
The end face of the resin molded body on being positioned at least of above-mentioned external rotor is axial is provided with the 1st a clearance inspection hole that is used to check the gap size between said stator and the above-mentioned external rotor at least.
2. motor according to claim 1 is characterized in that,
This motor comprises circular internal rotor, and this internal rotor is in along the position of said stator inner peripheral surface, is formed by molded of resin material;
The end face of the resin molded body on being positioned at least of above-mentioned internal rotor is axial is provided with the 2nd a clearance inspection hole that is used to check the gap size between said stator and the above-mentioned internal rotor at least.
3. according to each described motor in claim 1 or 2, it is characterized in that,
The end face of the resin molded body on being positioned at least of above-mentioned external rotor is axial is provided with the openning that is used to dispel the heat;
Form above-mentioned the 1st clearance inspection hole by the width that radially enlarges above-mentioned openning.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-061698 | 2007-03-12 | ||
| JP2007061698A JP4420245B2 (en) | 2007-03-12 | 2007-03-12 | motor |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410032748.XA Division CN103795205A (en) | 2007-03-12 | 2008-03-12 | Motor |
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| CN101267133A true CN101267133A (en) | 2008-09-17 |
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ID=39846385
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100077968A Pending CN101267133A (en) | 2007-03-12 | 2008-03-12 | Electromotor |
| CNU2008200082872U Expired - Fee Related CN201188560Y (en) | 2007-03-12 | 2008-03-12 | Motor |
| CN201410032748.XA Pending CN103795205A (en) | 2007-03-12 | 2008-03-12 | Motor |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200082872U Expired - Fee Related CN201188560Y (en) | 2007-03-12 | 2008-03-12 | Motor |
| CN201410032748.XA Pending CN103795205A (en) | 2007-03-12 | 2008-03-12 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4420245B2 (en) |
| CN (3) | CN101267133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154690A (en) * | 2016-03-02 | 2017-09-12 | 三菱电机株式会社 | Electric rotating machine and its manufacture method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101104015B1 (en) * | 2010-05-04 | 2012-01-06 | 뉴모텍(주) | Rotor Housing for Easy and Safe Assembling and Method for Assembling Motor Set Using the Rotor Housing |
| JP6994422B2 (en) * | 2018-04-09 | 2022-01-14 | 東芝三菱電機産業システム株式会社 | Rotating machine, bearing structure, and gap inspection method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4837304U (en) * | 1971-09-06 | 1973-05-07 | ||
| JP3738116B2 (en) * | 1997-07-18 | 2006-01-25 | 株式会社東芝 | Rotating electric machine |
| JP2003111355A (en) * | 2001-09-28 | 2003-04-11 | Kusatsu Electric Co Ltd | Structure for cooling motor |
| JP4050746B2 (en) * | 2002-06-26 | 2008-02-20 | アモテック・カンパニー・リミテッド | Radial core type double rotor type BLDC motor (BrushlessDirectCurrentMotorofRadialCoreTypeHavingaStructureofDoubleRotors) |
| AU2004242442B2 (en) * | 2003-12-26 | 2010-07-01 | Lg Electronics Inc. | Motor for washing machine |
| EP1854199B1 (en) * | 2005-01-17 | 2018-03-28 | LG Electronics Inc. | Dual rotor type motor |
| KR100651873B1 (en) * | 2005-01-24 | 2006-12-01 | 엘지전자 주식회사 | Motor |
| CN1889329A (en) * | 2005-06-29 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Washing machine motor |
| KR100663641B1 (en) * | 2006-04-06 | 2007-01-05 | 주식회사 아모텍 | Method for making integrated stator, brushless direct current motor of radial core type having a structure of double rotors and method for making the same using the method |
-
2007
- 2007-03-12 JP JP2007061698A patent/JP4420245B2/en not_active Expired - Fee Related
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2008
- 2008-03-12 CN CNA2008100077968A patent/CN101267133A/en active Pending
- 2008-03-12 CN CNU2008200082872U patent/CN201188560Y/en not_active Expired - Fee Related
- 2008-03-12 CN CN201410032748.XA patent/CN103795205A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154690A (en) * | 2016-03-02 | 2017-09-12 | 三菱电机株式会社 | Electric rotating machine and its manufacture method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008228424A (en) | 2008-09-25 |
| JP4420245B2 (en) | 2010-02-24 |
| CN201188560Y (en) | 2009-01-28 |
| CN103795205A (en) | 2014-05-14 |
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Application publication date: 20080917 |