CN201188578Y - Motor - Google Patents

Motor Download PDF

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Publication number
CN201188578Y
CN201188578Y CNU2007203111406U CN200720311140U CN201188578Y CN 201188578 Y CN201188578 Y CN 201188578Y CN U2007203111406 U CNU2007203111406 U CN U2007203111406U CN 200720311140 U CN200720311140 U CN 200720311140U CN 201188578 Y CN201188578 Y CN 201188578Y
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CN
China
Prior art keywords
mentioned
stator
test section
rotor
location division
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2007203111406U
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Chinese (zh)
Inventor
桧胁英治
松尾繁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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Publication date
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Publication of CN201188578Y publication Critical patent/CN201188578Y/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/206Mounting of motor
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 
    • D06F37/304Arrangements or adaptations of electric motors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094Structural association with other electrical or electronic devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21Devices for sensing speed or position, or actuated thereby
    • H02K11/215Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements

Abstract

The utility model provides an electric motor. The electric motor (5) is provided with a stator (5a), a rotor and a rotational position detecting part (26) used for detecting the rotational position of the rotor. A first positioning part (41) and a second positioning part (42) arranged on the stator (5a) are respectively embedded into a first embedded part (43) and a second embedded part (44) arranged on the rotational position detecting part (26). According to the structure, the simple electric motor (5) the rotational position detecting part of which can be highly and precisely installed is formed.

Description

Motor
Technical field
The utility model relates to and a kind ofly has the stator on the fixed part that is installed on washing machine etc. and be installed on the motor of the driving of washing machine etc. with the rotor on the axle.
Background technology
Motor in the past for example, is used for as Figure 13, drum-type washing machine in the past 100 shown in Figure 14 etc.Drum-type washing machine 100 is provided with tank 102 and swing roller 104 (hereinafter referred to as cylinder 104) in body of the washing machine 101 (hereinafter referred to as main body 101).Tank 102 utilizes suspension construction (not shown) elastic bearing in main body 101.Cylinder 104 is located in the tank 102, and is formed with many holes 103.And cylinder 104 is driven by motor 105 and is rotated.But be located at the face side of main body 101 door 106 freely openables.By opening door 106, the front openings portion of tank 102 and the front openings portion of cylinder 104 are communicated with, and drop in the cylinder 104 from cylinder 104 interior taking-up washings (not shown) or with washings.
In addition, after opening door 106 and putting into washings in the cylinder 104, drop into washing agent, washing machine 100 entrys into service.When washing machine 100 entrys into service, in water supply portion 107 water supply screw clamps 102.Supply to the water (not shown) in the tank 102, enter in the cylinder 104, thereby also be supplied to the water of aequum in the cylinder 104 by many holes 103.When being rotated with the regulation rotating speed by motor 105 head rolls 104, be contained in the washings in the cylinder 104, the stirring projection of being located on cylinder 104 inner peripheral surfaces 108 tangles, and is lifted along direction of rotation.The washings that is lifted along direction of rotation falls from suitable height.Thus, washings is applied beat the washing that is used for carrying out washings of washing.Behind the above-mentioned washing step, dirty washings are discharged to the outside of main body 101 by Drainage Division 109, use the new water of supplying with to carry out rinse step.After rinse step finished, cylinder 104 carried out high speed rotating, carried out dehydration.Control sequence according to the rules automatically performs above-mentioned washing step, rinse step, dehydration.
For example, open 2006-43105 communique (hereinafter referred to as patent documentation 2), Japan Patent spy Japanese patent laid-open 10-263271 communique (hereinafter referred to as patent documentation 1), Japan Patent spy and open that 2005-168116 communique (hereinafter referred to as patent documentation 3), Japan Patent spy are opened 2004-216166 communique (hereinafter referred to as patent documentation 4), the Japan Patent spy opens in 2000-254385 communique (hereinafter referred to as patent documentation 5) etc. and discloses this washing machine in the past.
Washing machine in the past, for example have be used to carry out washing step and rinse step can positive and negative rotation the 1st motor and being used to carry out dehydration to a direction the 2nd motor of rotation continuously.In washing step and rinse step, the 1st motor drives swing roller with the 1st rotating speed and carries out positive and negative rotation.In dehydration, the 2nd motor drives swing roller with the 2nd rotating speed and rotates continuously to a direction.The 1st motor and the 2nd motor mounting are passed to swing roller by V-shape belt with revolving force in the back side of tank.The drive pattern of such swing roller is for example disclosed in patent documentation 1.In addition, the rotation that for example discloses the motor that will be installed on the tank back side in patent documentation 2 directly is passed to the drive pattern of rotary drum rotating axle.Have again, for example in patent documentation 3, disclose in the stator of the motor that is being installed on the tank back side inner-rotor type motor of configuration rotor on week.The external-rotor motor of configuration rotor on the stator periphery perhaps, is for example disclosed in patent documentation 4.Like this, the type of drive that is used to drive swing roller can adopt multiple mode.
In addition, Figure 13 has represented to adopt the drum type washing machine in the past 100 of inner-rotor type motor 105.Figure 14 has represented to adopt the roller washing machine in the past 100 of external-rotor motor 105.No matter in which drum type washing machine 100, motor 105 all is stator 110 to be installed on the outer bottom, rotor 111 is installed on rotating shaft 112 at the back side of tank 102.
In addition, structure on the outer bottom that stator is installed on tank is for example disclosed in patent documentation 3.That is, stator and rotor are to be formed by molded of resin material.Stator is formed with installation foot in resin molded part.Use screw or bolt that installation foot is installed on the outer bottom of tank.Thus, motor is installed on the outer bottom of tank.
On the other hand, after the dehydration, swing roller with 90 the degree under the small anglec of rotation in, carry out repeatedly positive and negative rotation.Particularly swing roller 104 carries out repeatedly positive and negative rotation with the above small anglec of rotation less than 30 degree of 10 degree.Thus, paste the washings of paying in swing roller and be stripped from, thereby untied with the washings that the state that is fixed in the swing roller internal upper part exists.And the structure of the taking-up of the imbalance when seeking to eliminate dehydration, improvement oven dry back washings is known.These structures are for example disclosed in patent documentation 5.
Following motor mounting in the assembling of washing machine, be installed on the stator of laundry pusher side and be installed on the rotor that drives with on the axle, the location of stipulating usually.And, check whether motor brings into play suitable motor characteristic.To this, as record in the patent documentation 5, in employing the motor positive and negative alternate is carried out under the situation of type of drive less than the arc rotating of 360 degree repeatedly, detect the position of rotation that motor arc rotating positive and negative alternate switches, the position-based detection signal carries out the counter-rotating control of the positive and negative driving of motor.
Patent documentation 1: Japanese kokai publication hei 10-263271 communique
Patent documentation 2: TOHKEMY 2006-43105 communique
Patent documentation 3: TOHKEMY 2005-168116 communique
Patent documentation 4: TOHKEMY 2004-216166 communique
Patent documentation 5: TOHKEMY 2000-254385 communique
The utility model content
The utility model provide a kind of can be simply, precision ground in high position installs the position of rotation test section, and can carry out the motor that the position of rotation of rotor detects accurately.
Motor described in the utility model has the position of rotation test section of stator, rotor and detection rotor position of rotation.A plurality of installation portions that stator has the resin molded portion of stator that is become by molded of resin material and forms as one with the resin molded portion of stator, extend to foreign side, rotor has the resin molded portion of the rotor that is formed by molded of resin material, and this rotor and rotating shaft tabling are located at the periphery of stator.And, stator has continuing surface, the 1st location division and the 2nd location division, continuing surface is located on 2 installation portions in a plurality of installation portions, the 1st location division is located on the continuing surface, and in fact rotating shaft axially on have the shape of convex or concavity, the 2nd location division is located on the outer peripheral face of stator, and in fact upwards has the shape of convex or concavity in the footpath of rotating shaft.In addition, the position of rotation test section has the face of setting, the 1st fitting portion and the 2nd fitting portion, setting is towards circumferential extension and be located at circumferential both sides, the 1st fitting portion is located on the face of setting, and shape with concavity or convex, the 2nd fitting portion is located on the end face of stator side, and has the shape of concavity or convex.And, by being set, face is located on the continuing surface, and the position of rotation test section is configured between 2 installation portions and is positioned at the below of rotor, and is chimeric thereby carry out the 1st fitting portion and the 1st location division, and the 2nd fitting portion and the 2nd location division are carried out chimeric.Constitute thus, provide a kind of high position precision of having guaranteed position of rotation test section and rotor, can be simply and the motor assembled of short time.
Description of drawings
Fig. 1 is the cutaway view that expression has adopted the major part of the washing machine of the utility model execution mode motor to constitute.
Fig. 2 is a partial sectional view of seeing washing machine shown in Fig. 1 from the back side.
Fig. 3 is the part sectioned view of the mounting portion of motor shown in Figure 1.
Fig. 4 is the rearview that is used for the motor of washing machine shown in Figure 1.
Fig. 5 is the cutaway view of motor shown in Figure 4.
Fig. 6 is the exploded perspective view of motor shown in Figure 4.
Fig. 7 is the rear perspective view that constitutes the rotor of motor shown in Figure 4.
Fig. 8 A is the vertical view of installment state that expression is used for the position of rotation test section of motor shown in Figure 4.
Fig. 8 B is the rearview of position of rotation test section shown in Fig. 8 A.
A is the vertical view that is used for the stator of motor shown in Figure 4 among Fig. 9, and B is the front view of stator shown in Fig. 9 A.
Figure 10 A is the stereogram of position of rotation test section shown in Fig. 8 A.
Figure 10 B is the stereogram of stator shown in Fig. 9 A.
Figure 10 C is the stereogram of position of rotation test section that is used for the another way of motor shown in Figure 4.
Figure 10 D is the stereogram that is used for the stator of another way shown in Figure 4.
Figure 11 is the stereogram of motor shown in Figure 4.
Figure 12 A is the action specification figure of the washings of washing machine shown in Figure 1.
Figure 12 B is the action specification figure of the washings of washing machine shown in Figure 1.
Figure 12 C is the action specification figure of the washings of washing machine shown in Figure 1.
Figure 12 D is the action specification figure of the washings of washing machine shown in Figure 1.
Figure 12 E is the action specification figure of the washings of washing machine shown in Figure 1.
Figure 12 F is the action specification figure of the washings of washing machine shown in Figure 1.
Figure 12 G is the action specification figure of the washings of washing machine shown in Figure 1.
Figure 13 is the cutaway view that the drum type washing machine in the past of inner-rotor type motor has been adopted in expression.
Figure 14 is the cutaway view that the drum type washing machine in the past of external-rotor motor has been adopted in expression.
Embodiment
Below, with reference to Fig. 1~Figure 12 G execution mode of the present utility model is described.And, below be illustrated as embodiment of the present utility model, do not limit content of the present utility model.
As shown in Figure 1, the drum type washing machine 50 of present embodiment is provided with tank 2 and swing roller 4 (hereinafter referred to as cylinder 4) in body of the washing machine 1 (hereinafter referred to as main body 1).Tank 2 utilizes suspension construction (not shown) elastic bearing in main body 1.Cylinder 4 is located in the tank 2, and is formed with many holes 3.And cylinder 4 is driven by motor 5 and is rotated.But be located at the face side of main body 1 door 6 freely openables.By opening door 6, the front openings portion of tank 2 and the front openings portion of cylinder 4 are communicated with, and washings (not shown) is taken out in cylinder 4 or washings is put into cylinder 4.
In addition, after opening door 6 and putting into washings in the cylinder 4, drop into washing agent (not shown), washing machine 50 entrys into service.When washing machine 50 entrys into service, in water supply portion 7 water supply screw clamps 2.The water (not shown) that supplies in the tank 2 enters in the cylinder 4 by many holes 3, thereby also is supplied to the water of aequum in the cylinder 4.When being rotated by the rotating speed of motor 5 head rolls 4 about with regulation rotating speed, for example 50rp m, be contained in the washings in the cylinder 4, the stirring projection of being located on cylinder 4 inner peripheral surfaces 8 tangles, and is lifted along direction of rotation.The washings that is lifted along direction of rotation falls from suitable height.Thus, washings is applied beat the washing that is used for carrying out washings of washing.Behind such washing step, dirty washings are discharged to the outside of main body 1 by Drainage Division 11.Behind the washings of discharging dirty, in tank 2, supply with water again, use the water of supplying with to carry out rinse step.After rinse step finished, cylinder 4 carried out high speed rotating with for example rotating speed about 1000rp m.Thus, carry out dehydration.Control sequence according to the rules automatically performs above-mentioned washing step, rinse step, dehydration.
In addition, the washing machine 50 of present embodiment is for having the roller washing and drying machine of oven dry portion 13.That is, oven dry portion 13 attracts in the tank 2 and the air in the cylinder 4 by forced draft fan 12.Dehumidify by 16 pairs of air that are attracted of dehumidification portion successively and heat by the 17 pairs of air that are attracted in heating part.Then, become the high temperature air of drying by the air that dehumidify, heat, be fed to once more tank 2 interior with cylinder 4 in.Thus, carry out baking step.And, also can after dehydration, automatically perform baking step.Like this, the washing machine 50 of present embodiment constitutes roller washing and drying machine.
In order automatically to carry out above steps,,, control motor 5, water supply portion 7, Drainage Division 11 and oven dry portion 13 automatically by the control device of control circuit board 9 grades according to the mode initialization of guidance panel 14 or control program etc.Like this, washing machine 50 has the function that automatically performs washing step, rinse step, dehydration, baking step.In addition, on control circuit board 9, be equipped with microcomputer.
In addition, by opening and closing electromagnetically operated valve (not shown), water supply portion 7 like that in time supplies water shown in water supply path 61.In addition, washing machine 50 has utilize to supply water the washing agent of washing agent resettlement section (not shown) is in time put into mechanism in the tank 2.When needing draining when washing step finishes, when rinse step finishes etc., by opening and closing electromagnetically operated valve (not shown), Drainage Division 11 is carried out draining like that shown in drainage path 62.Oven dry portion 13 has to be made in the tank 2 and the circulating path 63 of the air circulation in the cylinder 4 by forced draft fan 12.And oven dry portion 13 has filter 15, dehumidification portion 16 and heating part 17.Filter 15 captures the airborne the end of a thread of importing that imports from tank 2 and cylinder 4 and waits and carry out dedusting.16 pairs of dehumidification portion utilize the air after filter 15 dedustings to dehumidify.17 pairs of heating parts utilize the air after dehumidification portion 16 dehumidifying to heat, thereby generate dry high temperature air.Forced draft fan 12 is disposed at the downstream of the heating part 17 of circulating path 63.Thus, forced draft fan 12 is not subject to the influence of moisture, has improved reliability.In addition, oven dry portion 13 has the air conditioner 19 that is made of evaporator and condenser.Air conditioner 19 uses compressor 18, makes cold-producing medium in dehumidification portion 16 and heating part 17 circulations, utilizes oven dry portion 13 to make the air of cold-producing medium and circulation carry out heat exchange.In addition, the structure of oven dry portion 13 is not limited to this.
Cylinder 4 has the rotating shaft 4a (hereinafter referred to as axle 4a) that is installed on cylinder 4 back sides.On the periphery of axle 4a front end, be provided with rotating shaft spline (serration) 4a1 of portion (hereinafter referred to as spline part 4a1).Axle 4a is supported by bearing portion 24, and directly is connected with the motor 5 that is installed on tank 2 back sides.It is θ=20 ± 10 degree with respect to the angle of inclination of horizontal direction that axle 4a is configured to tilt and make the rotating shaft direction towards bottom side from the peristome side of washing machine 50 with cylinder 4, tank 2.With the situation of the direction setting of cylinder 4 edges and horizontal direction parallel is compared, under the situation that cylinder 4 is obliquely installed, even cylinder 4 is arranged on the equal height, its opening is also towards oblique upper.Thus, the user of washing machine 50, washings can easily be taken out and drop into to hard posture such as do not need to bend over also.Particularly make the structure of such washing machine 50 according to the utility model people's etc. experience: by making tilt angle theta is 20 ± 10 degree, even have height differences to the adult from child (except the child), perhaps use the people of wheelchair, also can be easy to take out, put into washings most.Also have such advantage: the water of supplying with in cylinder 4 accumulates in the rear side of cylinder 4, even thereby the water yield less, also can obtain the state of darker water storage.And in washing machine 50 as shown in Figure 1, axle 4a directly is connected with the motor 5 of being located at cylinder 4 back sides.Thus, motor 5 directly is passed to cylinder 4 with revolving force.And the such axle 4a and the structure of motor 5 are not limited to structure shown in Figure 1.
In addition, washing machine 50 constitutes the roller washing and drying machine with drying function., also can be the vertical drum type washing machine 50 of drum type washing machine 50 with drying function, cylinder 4, not have other a washing machine 50 of cylinder 4 etc.In addition,, no matter motor 5 is installed on which part of washing machine 50 in what kind of mode, all may be applicable to the utility model corresponding to the mode of washing of washing machine 50 or the difference of type of drive etc.In addition, the driving of rotating for being driven by rotor 5b is with an axle 4a, also is not subjected to the supporting construction of a 4a or to the restriction of the mode of driven object transmission such as cylinder 4 rotation.
In addition, motor 5 has stator 5a and rotor 5b.And,, stator 5a is installed on the stator maintaining part 33 (hereinafter referred to as maintaining part 33) by being disposed at a plurality of installing mechanisms 30 that make progress in stator 5a week.Maintaining part 33 is installed pedestal by the metallic stator that is fixed in tank 2 back sides by set bolt (not shown) etc. and is constituted.Constitute motor unit 55 by motor 5 and maintaining part 33.In addition, revolving force is passed to cylinder 4 the axle 4a be connected with rotor 5b.By the electromagnetic action that produces by the three-phase alternating current that acts between stator 5a and the rotor 5b, make rotor 5b rotation.Thus, cylinder 4 is driven, and carries out each step such as washing step, rinse step, dehydration, baking step.In addition, maintaining part 33 also can be made of resin forming product.
Stator 5a has stator core 20, stator resin molded 31 (hereinafter referred to as molded 31), installation portion 32 and the connector 27 that is connected with winding 54.Stator core 20 has along radially the extending of stator 5a, along the utmost point tooth 20a of circumferential array.Stator core 20 is to twine winding 54 and constitute on utmost point tooth 20a.And Fig. 5 represents the motor 5 of winding 54 along the ring winding mode that circumferentially twines.And, rotor 5b have the magnet 22 relative with utmost point tooth 20a and with magnet 22 corresponding rotor cores 23.Thus, produce electromagnetic action between stator 5a and rotor 5b, motor 5 is rotated.Be to use for molded 31 resin material to coat molded the forming of mode of stator core 20.
Installing mechanism 30 is made of the fastening appliance class of a plurality of installation portions 32 and a plurality of bolt 34 etc.Installation portion 32 is made of a plurality of installation feet, and this installation foot is to be arranged at the periphery of this axial end with respect to the mode that molded 31 is extended to foreign side to the periphery of the axial end of maintaining part 33 installation sides.The fastening appliance class of bolt 34 grades is threaded installation portion 32 and maintaining part 33.In addition, maintaining part 33 and bearing portion 24 form as one. Bearing 24a, 24b and the oil sealing 24c of bolster 4a are pressed in the bearing portion 24.In addition, a face of maintaining part 33 is installed on the tank 2, and in the rear side of the one side that tank 2 is installed stator 5a is installed.
Each installation portion 32 is provided with installing hole 32a, and maintaining part 33 is provided with screwed hole 33a.By with bolt 34 from passing installing hole 32a and carry out threaded engagement with screwed hole 33a with maintaining part 33 opposite sides, thereby installation portion 32 is connected with maintaining part 33.Thus, installation portion 32 and maintaining part 33 are connected.Its result, stator 5a is firmly installed in the back side of tank 2.
In addition, rotor 5b have hub 38, magnet 22, with magnet 22 corresponding rotor cores 23.And rotor 5b has the rotor that is formed by molded of resin material resin molded 37 (hereinafter referred to as molded 37).Be to use for molded 37 resin material to coat molded the forming of mode of magnet 22 and rotor core 23.Has the top 37a that is located at a side opposite for molded 37 with tank 2.Central portion at top 37a is formed with metal hub 38 by insertion (insert).By inserting hub 38, be formed with installing hole 37b at the central portion of top 37a.The rotor that is provided with in interior week at installing hole 37b is sawed spline 37b1 (hereinafter referred to as spline part 37b1).The spline part 37b1, the 4a1 that make installing hole 37b and axle 4a both sides be in the side engaging opposite with maintaining part 33, thereby chimeric one-tenth is guaranteed to prevent an installing hole 37b and an axle 4a and rotated along direction of rotation.In addition, also can replace spline part 37b1,4a1, and the rotation prevention portion that adopts key (not shown) and keyway (not shown) to fasten.In addition, rotor 5b uses packing washer 39, by the fastening appliance class of bolt 40 grades hub 38 is fastened to a 4a.Thus, rotor 5b is installed on the 4a securely.In addition, but motor 5 is installed to assembling sequence multiple choices on the main body 1.In addition, various structures, method can be adopted in the location division in the space between rotation prevention portion and stator 5a, the rotor 5b.
In addition, washing machine 50 of the present utility model is that θ=20 ± 10 degree crustal inclination are provided with this cylinder 4 with the rotating shaft direction of cylinder 4 and the angle of inclination of horizontal direction.Thus, the washing machine that cylinder 4 is set with along continuous straight runs is compared, and demonstrates washings also concentrates on lower position easily on the rotating shaft direction of cylinder 4 tendency.The purpose of the drum type washing machine of present embodiment is to make washings this tendentiousness to occur, and then improves washings significantly and produce to twine, reverse, and improves the effect of mechanical force, also makes washings be difficult to produce fold simultaneously.That is, the washing machine 50 of present embodiment for the drive controlling of being undertaken by 9 pairs of cylinders of control circuit board 4, comprises positive and negative arc rotating drive pattern and positive and negative continuous rotation drive pattern.Positive and negative arc rotating drive pattern is such rotation drive pattern: make cylinder 4 alternately to carry out rapidly forward arc rotating, reverse arc rotating rapidly repeatedly greater than 90 degree and less than the angles of 180 degree.In addition, in positive and negative arc rotating drive pattern, head roll 4 is rotated with the rotating speed about 40rpm~60rpm.In addition, positive and negative continuous rotation drive pattern is such rotation drive pattern: make cylinder 4 with the positive and negative continuous rotation that hockets repeatedly of the rotating speed of realizing following actions, this action is to make the action that falls from the one-up height of conducting oneself with dignity because of the upborne washings of the rotation of cylinder 4.In addition, combination in any is carried out this two kinds of drive patterns as required.
Represent the drive pattern of washings 21 cylinder 4 when being contained in the cylinder 4 that will simulation from Figure 12 A~Figure 12 F.Cylinder 4 becomes carrying out such shown in Figure 12 B greater than 90 degree and less than 180 arc rotating of spending from the inactive state shown in Figure 12 A.Thus, washings is lifted to greatest extent to spending greater than 90 degree and less than 180.In addition, and, by driving, close on the position at the final position of lifting washings 21 or its to forward and reverse this arc rotating that hockets, produce deceleration or the on-position that is used to make the rotation counter-rotating at cylinder 4.Thus, shown in Figure 12 C, utilize, peel off washings 21 in moment from the inner surface of cylinder 4 reliably by the pressure peeling force of the rotatory inertia generation that puts on washings 21 and the deadweight of washings 21.And, carry out repeatedly from the action shown in Figure 12 C~Figure 12 F.That is, shown in Figure 12 C~Figure 12 F, the arc rotating of the positive and negative alternate by cylinder 4 drives, and the cocked position of washings 21, lowering position are alternately changed about in each arc rotating drives.By rotating the effect of untiing that has improved washings 21 with such drive pattern head roll 4.And, make washings 21 be subjected to mechanical force, thereby wash effectively.In addition, Figure 12 G is the schematic diagram of the positive and negative arc rotating drive pattern when schematically illustrating the positive and negative arc rotating of carrying out each each 90 degree repeatedly.
In addition, if only be positive and negative arc rotating drive pattern shown in Figure 12 A~Figure 12 F, can alleviate washings 21 winding, reverse, fold etc., but be difficult to change the position of washings 21 on above-below direction, it is uneven to be easy to generate washing.Therefore, with positive and negative continuous rotation drive pattern, realize the position of conversion washings 21 by also easily at above-below direction.That is, utilize positive and negative arc rotating drive pattern, can alleviate washings 21 winding, reverse, fold, and utilize positive and negative continuous rotation drive pattern, can alleviate the unbalanced of mechanical force that washings 21 is applied.Like this, with positive and negative arc rotating drive pattern and positive and negative continuous rotation drive pattern dual mode, in washing step and in the rinse step, washings 21 produces 2 kinds of different actions by also.Specifically, utilize positive and negative arc rotating drive pattern, alleviated washings 21 winding, reverse, fold, and also realized the action of manual rubbing washing.And, utilize positive and negative continuous rotation drive pattern, rotate washings 21 significantly continuously, both alleviated the washing non-uniform phenomenon, make it to have washing and the evenly action of washing again.In addition, because positive and negative arc rotating drive pattern is carried out hocket repeatedly positive rapidly arc rotating and the action of backfire line rotation rapidly, the driving load of motor 5 is bigger., by and use the positive and negative continuous rotation drive pattern less to the driving duty ratio of motor 5, alleviated the driving load of motor 5.
In sum, cylinder 4 arc rotating that hockets repeatedly, thus, positive and negative alternate carries out washings 21 is lifted to the action on the one-sided top, the left and right sides of cylinder 4.And near the final position or final position that washings 21 lifts, cylinder 4 is carried out and slows down or braking.Thus, the action of gravity that produces by the pressure peeling force that produces by the inertia that rotatablely moves with by the deadweight of washings 21 on washings 21, thereby washings 21 is peeled from cylinder 4 inner surfaces reliable and instantaneously, drop on the left and right sides opposition side of cylinder 4.By carrying out this action repeatedly, each arc rotating makes about the cocked position, lowering position of washings 21 and alternately changes, thus the effect of untiing that has improved washings 21.Therefore, prevented washings 21 winding, reverse and pay to the subsides of cylinder 4 inner surfaces, thereby from washing machine 50, take out washings 21 easily, relaxed significantly on washings 21 and produced fold.In addition, because washings 21 is subjected to mechanical force, beats clean result, beat wash effect and stretch flat fold effect thereby washings 21 applied by what the effect of beating produced, thereby also increased the drop number of washings 21 significantly.Improved function like this, effectively with each step headed by the clean result, washing machine 50.For example, washings 21 by with the winding when washing step and rinse step finish, reverse, the state of fold effectively presses on cylinder 4 inner surfaces, under the state that dehydration finishes, washings 21 is pasted together and produces severe gauffer., by in baking step, carrying out positive and negative arc rotating drive pattern, alternately change the cocked position and the lowering position of washings 21 about carrying out.And then, by this action, follow washings 21 each other about stronger effect of untiing and the mechanical force that change to produce act on washings 21.In addition, Yi Bian Yi Bian untie washings 21 like this sleekly also and with positive and negative continuous rotation drive pattern.Thus, carry out the conversion up and down of washings 21, thereby improved the aeration of each washings 21, the high temperature air of drying is delivered to each corner of washings 21 inside.Its result evenly and is in short time dried washings 21.In addition, flat fold is stretched in the effect of beating the when washings 21 of utilization under anhydrous state falls, and unties reversing of each washings 21 thereupon, thereby can seek to launch fiber and make regeneration.Its result has improved the washing completion status of the washings 21 after washing, rinsing, dehydration, the oven dry significantly.
In addition, as Fig. 1, shown in Figure 5, rotor 5b has internal rotor 5b1, this internal rotor 5b1 have the magnet 22 that is equipped on stator 5a inboard and with magnet 22 corresponding rotor cores 23.And rotor 5b has external rotor 5b2, this external rotor 5b2 have the magnet 22 that is equipped on the stator 5a outside and with magnet 22 corresponding rotor cores 23.Thus, rotor 5b is with respect to 1 stator 5a, has rotor core 23 respectively in the interior periphery of stator 5a.Therefore, on stator 5a, effect has electromagnetic action between internal rotor 5b1 and external rotor 5b2.Therefore, do not hinder the vibration, the noise that reduce motor 5, and increased the motor torque of motor 5.In addition, internal rotor 5b1 forms the dead space (dead space) that effectively utilizes between interior all sides of stator 5a and the bearing portion 24.Like this, because rotor 5b has internal rotor 5b1 and external rotor 5b2, harsh and drive the high driving of loading thereby motor 5 has stably been carried out as positive and negative arc rotating drive pattern.
Under the situation of carrying out positive and negative arc rotating drive pattern, carry out repeatedly along with the positive arc rotating and the counter-rotating of the fierce braking generation of backfire line rotation rapidly rapidly.Like this, improved the motor 5 of torque even adopt, when carrying out positive and negative arc rotating drive pattern, if backward position produces deviation, the reliability that then also can cause torque reduction, speed fluctuation, reduces motor 5 such as life-span ahead of time reduces.For example, because the controlled deterioration of motor 5 can cause torque reduction and speed fluctuation.In addition, for example since the vibration or the asymmetrical wear of bearing portion 24 can cause reducing the life-span ahead of time.
Like this, for the reliability of tackling motor 5 reduces problem, motor 5 has position of rotation test section 26 (hereinafter referred to as test section 26).That is,, detect the position of rotation of motor 5 accurately by test section 26 is set.The position of rotation of motor 5 is the position of rotation of rotor 5b.Test section 26 has 3 transducer 26a and sensor outer housing 26b.3 transducer 26a correspond respectively to U phase, V phase, the W phase of three-phase alternating current.In addition, transducer 26a is located on the end face 26c of stator 5a side of sensor outer housing 26b, and detection faces is a rotor 5b side towards the direction of axle 4a.In addition, in a plurality of installation portions 32, on adjacent 2 installation portions 32, be respectively equipped with the continuing surface 5c that is used to be provided with sensor outer housing 26b.Continuing surface 5c forms as one with the installation portion 32 that is provided with continuing surface 5c.In addition, test section 26 is provided with installing hole 26d in the circumferential both sides of sensor outer housing 26b, is provided with screwed hole 32b on continuing surface 5c.When test section 26 is installed on the stator 5a, sensor outer housing 26b is disposed on the continuing surface 5c, pass installing hole 26d and carry out threaded engagement from a side opposite by screw 45, thereby sensor outer housing 26b is connected with installation portion 32 with installation portion 32 with screwed hole 32b.Thus, sensor outer housing 26b and installation portion 32 are connected.Its result, test section 26 is installed on the stator 5a securely.
Be used for the motor 5 of the direct transmission type of drive of washing machine 50 grades, require low speed high torque, therefore motor 5 that adopt multipole number more.At this, when for example the number of poles of motor 5 was 2P, mechanical angle was 360 degree, and electrical angle is equivalent to (360 * P) degree.Therefore, the mechanical location of test section 26 detects error and is expanding P aspect the electric property to doubly.Electrical error is bigger, causes the controlled deterioration of the motor 5 when control motor 5.Guaranteeing that the number of poles of motor 5 is many more under the identical controlled situation, it is more little that the mechanical location of test section 26 detects error.For example, motor 5 is under the situation of 30 pole motors (P=15), and electric angle 360 degree are equivalent to mechanical angle 24 degree (=360/15).That is, the mechanical location of test section 26 detects error and is expanding 15 times to aspect the electric property.On the other hand, 3 transducer 26a, usually be wound in stator core 20 on 3 phase windings 54 U mutually, V phase, electrical cycle generation signal that W is corresponding respectively mutually.Thus, switch respectively U phase, V phase, the W of 3 phase windings 54 being fed mutually the moment of electric current.Therefore, for example transducer 26a can consider to constitute and is equipped on electric angle and becomes the at interval such mechanical location of 120 degree, or constitutes and be equipped on electric angle and become the such at interval mechanical location of 60 degree.And no matter in the configuration structure of above-mentioned which transducer 26a became, above-mentioned position detection error all enlarged P doubly.At this, proposing with number of poles is the situation of 30 motor 5 when being example, and the mechanical angle of test section 26 is deviation 1 degree only, and electric angle deviation 15 degree become significantly departure.
In addition, when the number of poles of motor 5 is that 2P, interlinkage flux are that φ a, motor current are Ia, the phase difference of interact voltage and motor current be advance angle be β, q axle inductance be Lq, when d axle inductance is Ld, motor torque T represents with following formula, i.e. T=P (φ aIacos β+0.5 (Lq-Ld) Ia 2Sin (2 β)) ... (1) in addition, the deviation of above-mentioned electric angle is represented with the departure of β.Waiting under the situation of controlling motor 5 with torque control or rotating speed control, when β had the such deviation significantly of 15 degree, value that should controlled motor torque produced significantly deviation.Therefore, controlled special deterioration.Above-mentioned situation is imagined easily by formula (1).Therefore, test section 26 accurately location and installation become particularly important.That is, the controlled degree that fully obtains stipulating is meant that for example the maximum deviation amount of β is about ± 5 degree.And, preferably the maximum deviation amount of β can be suppressed at ± 5 degree about, thereby the detection error of position of rotation is reduced to more high-precision state.
In order to reduce detection error as described above, in the motor 5 of present embodiment, stator 5a has the 1st location division 41 and the 2nd location division 42, and test section 26 has the 1st fitting portion 43 and the 2nd fitting portion 44.Thus, when assembling stator 5a and test section 26, shown in the dotted line of Fig. 8 A~Fig. 9 B, the 1st location division 41 and the 1st fitting portion 43 tablings, the 2nd location division 42 and the 2nd fitting portion 44 tablings.Shown in Figure 10 B, the 1st location division 41 has the axial towards the protruding convex of sensor outer housing 26b side of edge axle 4a.And, on continuing surface 5c, be provided with the 1st location division 41,2 places.In addition, shown in Figure 10 B, the 2nd location division 42 is located on the outer peripheral face 5d of stator 5a, and has in the footpath of axle 4a upwards and towards the protruding convex of sensor outer housing 26b side.And, be provided with the 2nd location division 42,2 places.In addition, shown in Figure 10 A, the 1st fitting portion 43 be located at installing hole 26d near, and have along axle 4a axially with the 1st location division 41 tablings, towards the axial hole shape of axle 4a.In addition, shown in Figure 10 A, the 2nd fitting portion 44 is located on the end face 26c, and have along axle 4a radially with the 2nd location division 42 tablings, towards the radially recessed concavity shape of axle 4a.In addition, shown in Figure 10 A, the 1st fitting portion 43 has the axial hole shape towards axle 4a., the 1st fitting portion 43 also can have vertically the concavity shape with the 1st location division 41 tablings.In addition, the 2nd location division 42 and the 2nd fitting portion 44 respectively are provided with 2 places respectively, but not necessarily are defined in 2 places, as long as there is 1 place above.
In addition, shown in Figure 10 D, the 1st location division 41 also can have the axial hole shape towards axle 4a.And shown in Figure 10 D, the 2nd location division 42 also can have the concavity shape radially towards axle 4a.Under the above-mentioned situation, shown in Figure 10 C, the 1st fitting portion 43 have along axle 4a axially with the 1st location division 41 tablings, towards the convex shape of axial installation portion 32 sides of axle 4a.In addition, shown in Figure 10 C, the 2nd fitting portion 44 have along the axle 4a radially with the 2nd location division 42 tablings and towards axle 4a convex shape radially.In addition, shown in Figure 10 D, the 1st location division 41 has the axial hole shape towards axle 4a., the 1st location division 41 also can have vertically the concavity shape with the 1st fitting portion 43 tablings.
Shown in Figure 10 B, 10D, the 1st location division 41 and the 2nd location division 42 are located on molded 31 by integrally formed etc.Thus, radial position, circumferential position and the axial location with respect to the utmost point tooth 20a that constitutes stator 5a has unique position relation.Therefore, by the 1st fitting portion 43 vertically with the 1st location division 41 tablings, test section 26 is positioned, and has limited this test section 26 in fact to the offset of peripheral direction and test section 26 concentricity with respect to the most peripheral arc surface of utmost point tooth 20a.And, utilize the 2nd fitting portion 44 radially with the 2nd location division 42 tablings, test section 26 is limited, has limited the offset of this test section 26 inside Zhou Fangxiang and the test section 26 circumferential relativeness with respect to utmost point tooth 20a in fact.As a result, improved the positioning accuracy of test section 26 with respect to the utmost point tooth 20a of specified quantity.
In addition, shown in Fig. 8 A and Fig. 8 B, the 1st location division 41 is in identical position relation with the 1st fitting portion 43 with the 1st location division 41 tablings.In the same manner, the 2nd location division 42 is in identical position relation with the 2nd fitting portion 44 with the 2nd location division 42 tablings.Thus, utilize axial chimeric and radially chimeric that the 2nd chimeric action of the 1st chimeric action, the 2nd location division 42 and the 2nd fitting portion 44 of the 1st location division 41 and the 1st fitting portion 43 produced, can be simultaneously by chimeric., because at least one side's chimeric action is preferential, therefore chimeric condition reduces by half, the chimeric action of beginning one side.Thus, since the initial chimerism of the chimeric action of a side, test section 26 approaches the chimeric position of the chimeric action of the opposing party or by to being positioned at the chimeric position of the chimeric action of the opposing party.And, when carrying out the chimeric action of a side, begin the opposing party's chimeric action easily later on.And by two sides' chimeric action, test section 26 is positioned with respect to stator 5a.Test section 26 is by with respect to behind the stator 5a location, with the state of the position location that keeps test section 26, as shown in Figure 11, utilize screw 45 with test section 26 screw fixed on stator 5a.As a result, it is fastened that test section 26 and stator 5a do not have position deviation ground.In addition, shown in Fig. 9 B, relatively the 1st location division 41 and the 1st axial chimeric amount L1 of the 1st fitting portion 43 and the 2nd axial chimeric amount L2 of the 2nd location division 42 and the 2nd fitting portion 44 are the relation of L1<L2.And the 1st chimeric amount L1 is the axial length of the 1st location division 41 and the 1st fitting portion 43 tablings, and the 2nd chimeric amount L2 is the axial length of the 2nd location division 42 and the 2nd fitting portion 44 tablings.Therefore, when test section 26 and stator 5a carry out fastening action, at first, begin the 2nd chimeric action of the 2nd location division 42 and the 2nd fitting portion 44, then, begin the 1st chimeric action of the 1st location division 41 and the 1st fitting portion 43.Thus, the 2nd chimeric action reduces by half chimeric condition, begins chimeric action simultaneously, and then, the 1st chimeric action and the 2nd chimeric action are moved abreast.
Like this, test section 26 is with respect to utmost point tooth 20a, forms engomphosis relation vertically with the 1st location division 41 that keeps same position relation.Thus, test section 26 is limited, has limited this test section 26 in fact to being the offset of peripheral direction of benchmark and test section 26 with the 1st location division 41 with respect to the concentricity at the most peripheral arc surface of the utmost point tooth 20a of circumferential array.And test section 26 is limited, has limited this test section 26 in fact to being the offset of interior Zhou Fangxiang of benchmark and test section 26 with the 2nd location division 42 with respect to the circumferential relativeness at a plurality of utmost point tooth 20a of circumferential array.As a result, improved the positioning accuracy of test section 26 with respect to the utmost point tooth 20a of stated number.
In addition, the 1st location division 41 is with corresponding with the 1st fitting portion 43 of the 1st location division 41 tablings, and the 2nd location division 42 is with corresponding with the 2nd fitting portion 44 of the 2nd location division 42 tablings.These chimeric actions, at least one side's chimeric action is preferential, easily begins chimeric action under the state that chimeric condition reduces by half.And from initial chimeric action, test section 26 approaches the chimeric chimeric position of the opposing party or by to being positioned at the chimeric chimeric position of this opposing party.Then, when carrying out the chimeric action of a side, begin the chimeric of the chimeric action of the opposing party easily.And two sides' chimeric action proceeds to chimeric release.Thus, utmost point tooth 20a and test section 26 position with high accuracy.Therefore, there are not individual differences ground, simple and short time to realize the terminal operation of stator 5a and test section 26.
Shown in Figure 10 B, 10D, the 1st location division 41 and the 2nd location division 42 are arranged on molded 31 by integrally formed etc.Thus, radial position, circumferential position and the axial location with respect to the utmost point tooth 20a that constitutes stator 5a has unique position relation.Therefore, by the 1st fitting portion 43 vertically with the 1st location division 41 tablings, test section 26 is spacing, limited this test section 26 in fact to the offset of peripheral direction and test section 26 concentricity with respect to the most peripheral arc surface of utmost point tooth 20a.And, by the 2nd fitting portion 44 radially with the 2nd location division 42 tablings, test section 26 is spacing, limited the offset of this test section 26 inside Zhou Fangxiang and test section 26 circumferential relativeness in fact with respect to utmost point tooth 20a.As a result, improved the positioning accuracy of test section 26 with respect to the utmost point tooth 20a of specified quantity.
In addition, test section 26 is by with respect to behind the stator 5a location, in order to make it to keep positioning states, utilize easily hold-down screw etc. with keep stator 5a towards state directly test section 26 is installed on the stator 5a.And, stator 5a towards being meant, for example be the state of continuing surface 5c posture up.Therefore, guarantee the high position precision of test section 26, test section 26 simply and at short notice is installed on the stator 5a.
In the time of will carrying out the 1st location division 41 and the 2nd location division 42 axial chimeric and radially chimeric simultaneously, for example shown in Fig. 8 A~Fig. 9 B, relation as stator 5a and test section 26, though the 2nd location division 42 towards radially, also can make the 2nd fitting portion 44 chimeric of the 2nd location division 42 and test section 26 satisfy can axially chimeric relation.This can axially chimeric relation, and is identical with the chimerism of the 1st location division 41 and the 1st fitting portion 43., in the present embodiment, the axial the 1st chimeric amount L1 of the 1st location division 41 and the 1st fitting portion 43 is littler than the axial the 2nd chimeric amount L2 of the 2nd location division 42 and the 2nd fitting portion 44.That is, the 1st location division 41 is set lessly from accepting the outstanding overhang of continuing surface 5c that test section 26 is provided with face 26e.And the overhang of the 1st location division 41 equates with the 1st chimeric amount L1.Thus, the face that the is provided with 26e of test section 26 slides on the 1st location division 41, and the 2nd fitting portion 44 is chimeric from radially beginning with respect to the 2nd location division 42.At this moment, suppress lessly with respect to the inclination of continuing surface 5c test section 26, thereby easily carry out the assembling of stator 5a and test section 26.
As a result, at the 2nd fitting portion 44 with respect to the 2nd location division 42 from radially beginning the moment of the chimeric chimeric end of job, the 1st fitting portion 43 is with respect to the 1st location division 41, carrying out contraposition at radially and circumferential both direction.By this action, suppress lessly with respect to the inclination of continuing surface 5c test section 26, the 1st fitting portion 43 does not reverse ground tabling and location with respect to the 1st location division 41.And, will be used for the chimeric play (gap) in the 1st fitting portion 43 and the 1st location division 41 and suppress lessly.Thus, stator 5a and test section 26 positioning accuracy have diametrically been improved.In addition, preferential chimeric the 2nd location division 42 and the chimeric of the 2nd fitting portion 44 can be carried out separately.Therefore, also can be chimeric easily even without circumferential play (gap), and to locating accurately with respect to the circumferential spacing of utmost point tooth 20a along circumferential array as most important transducer 26a.Thus, further improved the position of rotation accuracy of detection of rotor 5b.
In sum, have precedence in the axial chimeric tab order that carries out of the 1st location division 41 and the 1st fitting portion 43 in the 2nd location division 42 and the 2nd fitting portion 44 radially chimeric, test section 26 keeps the posture parallel with respect to arrangement plane, the continuing surface 5c of utmost point tooth 20a to carry out chimeric.In addition, test section 26 slides with inclination attitude on continuing surface 5c, make the 2nd fitting portion 44 with respect to the 2nd location division 42 chimeric after, also can make the 1st fitting portion 43 slide into the 1st location division 41.Like this, on one side test section 26 keeps inclination attitude with respect to continuing surface 5c,, also can make the 1st location division 41 and the 1st fitting portion 43 chimeric easily Yi Bian test section 26 is assembled on the stator 5a.
In addition, as shown in figure 11, installation portion 32 is formed at position on the stator 5a, that more extend to foreign side than rotor 5b, and is formed with continuing surface 5c on installation portion 32.And, test section 26 is installed on the continuing surface 5c.In addition, as shown in figure 11, on the continuing surface 5c of stator 5a side, be coated with in the position relation of rotor 5b, be formed with gap 46 between continuing surface 5c and the rotor 5b.Test section 26 is by gap 46, is inserted between continuing surface 5c and the rotor 5b from the side of stator 5a, thereby positions installation.And, when needs carry out the operations such as maintenance of test section 26, remove the installation and the location of test section 26, thereby easily unload test section 26.Therefore, when loading and unloading test section 26, rotor 5b can not disturb operation, thereby can simply carry out the charge and discharge operations of test section 26.
In addition, shown in Fig. 8 A and Fig. 8 B, the face 26e of setting is installed on the position with respect to the 1st location division 41 approximate vertical, shown in Fig. 9 A and Fig. 9 B, continuing surface 5c is with respect to the axial approximate vertical of stator 5a, as Fig. 6 and shown in Figure 11, face 26e and continuing surface 5c ground connection being fixed that offset is set.Thus, correctly determined the axial location of test section 26.And, as Fig. 6, Fig. 9 A, Fig. 9 B, shown in Figure 11, continuing surface 5c be located on the stator 5a, with stator 5a on the opposite side of direction that main body 1 is installed.
In sum, chimeric in the axial direction in the 1st location division 41 and the 1st fitting portion 43, be provided with that face 26e and continuing surface 5c connect and determine the axial location of test section 26.In addition, face 26e is set with respect to the 1st location division 41 actual vertical planes that form, in fact continuing surface 5c forms and axial vertical face.And then, test section 26 is positioned or is positioned separately by the association of the 1st location division 41 and the 1st fitting portion 43 is moving, restriction test section 26 and a plurality of utmost point tooth 20a and the axial location of rotor 5b and test section 26 is arranged the plane with respect to utmost point tooth 20a the inclination that make progress in week and arrange.Thus, improved test section 26 has been installed on the positional precision of stator 5a when going up.In addition, continuing surface 5c be located on the stator 5a, with stator 5a on the opposite side of direction that main body 1 is installed.And continuing surface 5c and installation portion 32 form as one.Thus, obtained installment state towards the test section 26 of foreign side.During therefore, to test section 26 maintenance unload or to change operation favourable.When particularly washing machine 50 has the cylinder 4 of level or tilted configuration,, be positioned at main body 1 back side in the inner part as tank 2 back sides of the mounting object of motor 5 with respect to main body 1.Therefore, as shown in Figure 2, when having unloaded backplate (not shown) state of main body 1, can load and unload test section 26 simply.
Utilizability on the industry
The utility model is used for installing the position of rotation detection of the rotor that consists of motor Section locates the position of rotation test section easily and accurately with respect to motor, can Obtain the high position accuracy of detection.

Claims (2)

1. a motor is characterized in that, comprising:
A plurality of installation portions that stator, this stator have the resin molded portion of the stator that is formed by molded of resin material and form as one with the resin molded portion of said stator, extend to foreign side;
Rotor, this rotor have the resin molded portion of the rotor that is formed by molded of resin material, and this rotor and rotating shaft tabling are located at the periphery of said stator;
The position of rotation test section is used to detect the position of rotation of above-mentioned rotor,
Said stator comprises:
Continuing surface is located on 2 installation portions in above-mentioned a plurality of installation portion;
The 1st location division, be located on the above-mentioned continuing surface and towards above-mentioned rotating shaft axially, in fact above-mentioned rotating shaft axially on have convex shape or concavity shape;
The 2nd location division is located on the outer peripheral face of said stator and towards above-mentioned rotating shaft radially, actual upwards have convex shape or concavity shape in the footpath of above-mentioned rotating shaft,
Above-mentioned position of rotation test section comprises:
Face is set, and this is provided with towards circumferential extension, and is located at circumferential both sides;
The 1st fitting portion, it is located at above-mentioned the setting on the face, has concavity shape or convex shape;
The 2nd fitting portion is located on the end face of above-mentioned position of rotation test section of said stator side, has concavity shape or convex shape,
By the above-mentioned face that is provided with is arranged on the above-mentioned continuing surface, thereby is disposed at above-mentioned position of rotation test section between above-mentioned 2 installation portions and is disposed at the below of above-mentioned rotor,
Above-mentioned the 1st fitting portion and above-mentioned the 1st location division tabling, and above-mentioned the 2nd fitting portion and above-mentioned the 2nd location division tabling.
2. motor according to claim 1 is characterized in that, the axial chimeric amount of above-mentioned the 1st location division and above-mentioned the 1st fitting portion is less than the axial chimeric amount of above-mentioned the 2nd location division and above-mentioned the 2nd fitting portion.
CNU2007203111406U 2007-02-14 2007-12-28 Motor Expired - Lifetime CN201188578Y (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101860161A (en) * 2010-05-28 2010-10-13 中国矿业大学 Three-phase 6/8 structure outer rotor switched reluctance motor rotor position detector
CN101512880B (en) * 2007-02-14 2011-07-20 松下电器产业株式会社 Motor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0287959A (en) * 1988-09-22 1990-03-28 Mitsubishi Electric Corp Brushless motor
JP2003088079A (en) * 2001-09-14 2003-03-20 Nidec Shibaura Corp Printed circuit substrate for positional sensor
EP1541738B1 (en) * 2003-12-10 2013-06-12 LG Electronics, Inc. Outer rotor type motor for drum type washing machine and method for fabricating the same
JP4496010B2 (en) * 2004-05-20 2010-07-07 株式会社東芝 motor
JP4044603B1 (en) * 2007-02-14 2008-02-06 松下電器産業株式会社 motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101512880B (en) * 2007-02-14 2011-07-20 松下电器产业株式会社 Motor
CN101860161A (en) * 2010-05-28 2010-10-13 中国矿业大学 Three-phase 6/8 structure outer rotor switched reluctance motor rotor position detector

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JP4044603B1 (en) 2008-02-06
KR100994339B1 (en) 2010-11-12
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TWI362809B (en) 2012-04-21

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