CN1101492C

CN1101492C - Motor actuator

Info

Publication number: CN1101492C
Application number: CN96114514A
Authority: CN
Inventors: 则武诚一朗
Original assignee: Sankyo Seiki Manufacturing Co Ltd
Current assignee: Nidec Instruments Corp
Priority date: 1995-11-02
Filing date: 1996-10-30
Publication date: 2003-02-12
Anticipated expiration: 2016-10-30
Also published as: JPH09131021A; CN1151454A; KR100257464B1; JP3364071B2

Abstract

To increase the operation modes of an apparatus using a motor actuator by making the current path connected to one side of a winding one system, and making the current path connected to a plurality of systems on the other side. A terminal 6 and one connector terminal 8 of a motor winding 55 are connected with each other, and the other connector terminal 9 and a switch contact piece 3 are connected with each other. A solenoid winding 40 is interposed between the terminal 6 and the switch contact piece 5. A capacitor 10 is connected in parallel with the solenoid winding 40, while a diode 11 is connected in series with the capacitor 10. One end of a diode 11 is connected with the switch contact piece 5 by a tongue piece 14, and the other end is connected, at a tongue part, with the capacitor 10 and the solenoid winding 40. The switch contact pieces 4 and 5 are both connected to CPU 12, and is connected with one end of a power source 13. On the other hand, the terminal 6 is connected to the other end of the power source 13. As a result, the energized state of the motor can be changed, and by the change, stop position can be set to the plural.

Description

Motor actuator

The present invention relates to a kind of motor actuator, can be used for opening and closing the draining valve of washing machine or the actuator such as blind window of ventilation fan are made kinetoplast, and be that drive source makes its action that puts rules into practice with the motor.

The mode of traditional switching washing machine drainage valve or ventilation fan blind window etc. is to adopt spring mechanism to carry out on-off action merely, then begins recently to utilize and uses the motor actuator of motor to carry out on-off action.

About this motor actuator, for example about the draining valve drive motor actuator of conventional washer, shown in the open 1989-12591 communique of Japanese Utility Model, be want being subjected to restoring reinforcing return-to-home position valve on the steel wire rope that connected reel, open and close this valve therefrom, motor actuator can be taked the position of 2 kinds of patterns, that is, such as valve is in the steel wire rope winding start position of closed condition and wire rope roll that valve is in open mode around end position.Between these 2 kinds of patterns, the necessary operation of dehydration procedure and front and back thereof of washing machine is carried out in the washing machine aspect.That is, in case the motor actuator that opening and closing of drain valve is used is started working, at first fixedly the fixing of washtub cuts off with clutch, unclamps the brake that washtub is remained on this position then, overcomes the power of closing in timing thereafter in fact draining valve is opened.In case these 3 functions are finished, motor actuator promptly is brought to the coiling end position, as the motor disconnection of motor actuator drive source.The effect of the anti-reverse mechanism of starting torque (detent torque) in the said motor or motor in addition, is used for draining valve, owing to even motor disconnects, still can remain on open position with draining valve though close masterpiece.Under this draining valve open mode, dewater.In case dehydration finishes, the clutch of being adorned in the gear series mechanism of motor actuator promptly is cut off, the recuperability that acts on the closing direction of draining valve makes motor actuator return winding start position, and this moment, draining valve became closed condition, the release of motor actuator immediately.

The detailed construction and the action example of this motor actuator are disclosed in the open 1989-121591 communique of Japanese Utility Model.Below in conjunction with Fig. 7 to Figure 11 its technical essential is described.

In Fig. 9, constitute the casing of actuator at Fig. 7 by housing 31 and lid 32.Fixing cup-shaped motor shell 51 (see figure 8)s in the bottom of housing 31.Motor shell 51 is embedded with the coil rack 53 of coiling motor coil 55, and the inboard of coil rack 53 is provided with rotor 61.Rotor 61 has motor drive shaft 57 and through axle bush 63 with keep body 79 and be fixed on rotor magnet 62 on the motor drive shaft 57, constitutes well-known phase synchronization motor.Clamping between rotor 61 and the motor shell 51 spring 60 of rotor 61 to the thrust direction reinforcing.The gear 78 of the rotation of this rotor 61 of integrally formed transmission on rotor 61.

As shown in Figure 9, on housing 31, fix base plate 52, above housing 31, be provided with intermediate plate 95.Between above-mentioned base plate 52 and intermediate plate 95, near the gear 78 of said motor, order is set up axle 58,76,77,59 and output shaft 74.Output shaft 74 is rotatable.

On above-mentioned axle 58, be embedded with rotatable gear 64 with gear 78 engagements, thereunder be embedded with the unidirectional limit rod 65 that the direction of rotation of the rotor 61 of syncmotor is limited in a direction, this limit rod 65 can be along with the rotation of gear 64, direction of rotation by frictional force at gear 64 is rotated, as everyone knows, be rotation to be limited by brake (omitting diagram).

On axle 58, be embedded with rotation across repulsion spring 66 freely and the gear 67 that can slide along axle 58.Bottom at gear 67 forms the engaging protuberance 67a that can engage with the connecting hole 64a of gear 64, but in normal circumstances, because the effect of spring 66, engaging protuberance 67 breaks away from connecting hole 64a.Be equipped with and make moving plate 69 along what axle 58 and suitable pilot hole slided at the upside of gear 67.The solenoid plunger 37 that slides up and down for guide groove in order to the coil rack 38 that is wound with solenoid 40 makes does moving plate 69 starts.In case give solenoid 40 energisings, plunger 37 is promptly attracted downwards, through making moving plate 69 gear 67 is pushed downwards, its engaging protuberance 67a engages with the connecting hole 64a of gear 64, and gear 67 can rotate with gear 64 one.This gear 67, gear 64 and spring 66 constitute the clutch that moves by plunger 37.

Be fixed with the friction catch body of making of rubber etc. 68 in the hub portion of gear 67 upsides.When friction catch body 68 rotates with gear 67 1 superhigh speeds, owing to act on the centrifugal force of friction catch body 68 load portions, the arm of friction catch body 68 is warpage upward, and the slide connecting part 68a of friction catch body 68 slips with the face that slips that is formed by intermediate plate 95 and produces brake force.But, when engaging, because the rotation of friction catch body 68 is slow, so do not produce friction brake force when gear 67 declines and with gear 64, only when gear 67 rises and rotates freely, slide connecting part 68a just slips with the face that slips that is formed by intermediate plate 95 and produces friction brake force.

Be arranged on large diameter gear 70a engagement on the axle 76 freely with rotation when said gear 67 is flat, the small-diameter gear 70b that forms one with gear 70a meshes with the large diameter gear 71a that rotation is arranged on the axle 77 freely, form the small-diameter gear 71b of one with gear 71a and rotate the large diameter gear 72a engagement that is arranged on freely on the axle 59, the small-diameter gear 72b and the one gear on the output shaft 74 73 that form one with gear 72a mesh.Said gear series 78-64-67-70-71-72-73 constitutes the reduction gearing series mechanism that the revolving force of rotor 61 is sent to output shaft 74.

On output shaft 74, between intermediate plate 95 and lid 32, be embedded with the cam 41 of one rotation shown in Figure 7, also one is embedded with to the top of lid 32 and stretches out, becomes the pulley 48 that actuator is made kinetoplast.

As shown in Figure 7, the peripheral part of cam 41 becomes the recess 41a of end difference, and the kink 42a of contact panel 42 and the cam edge of cam 41 are slipped, and the contact 44 that is fixed on point is relative with the point of contact panel 43.2

contact panels

42,43 constitute switch, control is supplied with alternating current from the outside between docking point plate 43 and another contact panel 45, when the kink 42a of contact panel 42 falls into the recess 41a of cam 41 to the energising of aforementioned motor, above-mentioned switch disconnects, and is cut off to the energising of motor.As shown in figure 11, this alternating current is through diode 46 rectifications and capacitor 47 filtering, as the direct-current power supply that solenoid 40 is carried out excitation.

The other end of the steel wire rope 49 that is connected with pulley 48 is connected with control lever 87 as the washing machine drainage valve system 93 of driven-mechanism as shown in figure 10.Drain valve mechanism 93 has the bellows 85 that is arranged in the housing 83, the spring 89 of bellows 85 to the inclined wall 83a of housing 83 pushing.On housing 83, be formed into the mouth of a river 82 and water discharge outlet 84, the ends urged of bellows 85 during to the state of the inclined wall 83a of housing 83, be closed between water inlet 82 and the water discharge outlet 84 with the reinforcing of spring 89.

The operating principle of the motor actuator of above-mentioned structure is as follows.In the original state of drain shut valve, cam 41 is in from the postrotational position of clockwise direction, position shown in Figure 7,

contact panel

42,43 conductings.In a single day at this moment to begin dewatering operation, then between

contact panel

43,45, supply with AC power, and supply with AC power to motor, make rotor 61 rotations by the switch that constitutes by

contact panel

42,43 by the switching manipulation of regulation.In addition, when supplying with AC power, also to solenoid 40 supply powers, plunger 37 moves, and gear 67 overcomes the reinforcing of spring 66 and moves downwards.So the holding section 67a of gear 67 engages with the connecting hole 64a of gear 64, gear 64,67 is done the one rotation, and the revolving force of rotor 61 sends output shaft 74 to through aforementioned reduction gearing series mechanism, makes output shaft 74 rotations.Because the rotation of this output shaft 74 drives, pulley 48 also is subjected to rotation and drives, and steel wire rope 49 is reeled, and the control lever 87 of drain valve mechanism 93 shown in Figure 10 is pulled, from water discharge outlet 84 drainings.

In addition, because the counter rotation of cam 41, in case as shown in Figure 7, the recess 41a that slips position arrival cam 41 of the kink 42a of contact panel 42, contact panel 42 promptly breaks away from contact panel 43, and the power supply of supplying with to motor is cut off, and the rotation of rotor 61 stops.But owing to still continuing to the energising of solenoid 40, so gear 64 still connects as one with gear 67, so because reinforcing of the spring 89 of drain valve mechanism 93, steel wire rope 49 is pulled to original position, pulley 48 will reverse, but said gear series is regarded as from output shaft 74 1 sides and is speed increasing gear series, so fail to make gear 78 rotations, draining valve still stays open state.

When dewatering operation finishes, promptly stop supply power between

terminal

43,45, and stop to solenoid 40 energisings.Owing to stopped power supply to coil 40, plunger 37 and gear 67 are owing to origin-location shown in Figure 9 is returned in the reinforcing of spring 66, gear 64 is disengaged with engaging of gear 67, the rotation of the gear series that motor load causes stops to be disengaged, because the reinforcing effect of the spring 89 of drain valve mechanism 93, gear series is through pulley 48 and output shaft 74 and oppositely idle running.Because seeing from output shaft 74 1 sides, said gear series constitutes speed increasing gear series, so though gear 67 will rotate at a high speed, but the load portion owing to the rotation of gear 67 at friction catch body 68 has produced centrifugal force, the inner face of slide connecting part 68a and intermediate plate 95 slips and produces brake force, so the rotation of gear 67 is controlled in certain speed roughly, and the restoring action of drain valve mechanism 93 is slowly carried out.

Along with the counter-rotating of output shaft 74, cam 41 also turns clockwise to the origin-location, and the kink 42a of the large-diameter portion of its cam edge and contact panel 42 slips, and by 2

contact panels

42 and 43 switch connections that constitute, drain valve mechanism 93 returns the origin-location.In addition, even by 2

contact panels

42 and 43 switch connections that constitute, there is not power supply to supply with between contact panel 42 and the contact panel 45, so motor can not begin rotation yet.

Adopt this traditional motor actuator,, promptly play the coiling end position and end continuous firing, so, must open by the draining valve that bellows etc. constitutes as long as motor begins to move from the winding start position of steel wire rope in case motor is connected.In other words, when traditional motor actuator can only be used to open draining valve, and can not be used for other patterns.Same problem is also arranged, in the time of promptly can only being used to open ventilation fan when motor actuator being used for the switching of ventilation fan.

The object of the present invention is to provide a kind of driving that is used for for example washing machine drainage valve or ventilation fan blind window etc., can increase the mode of operation of using actuator, the motor actuator that improves function.

It below is simple declaration to accompanying drawing.

Fig. 1 is that motor actuator of the present invention has been removed the partial top view behind the housing.

Fig. 2 is the switch peripheral circuit figure that comprises motor actuator of the present invention.

Fig. 3 is the vertical view of the contact pin part of presentation graphs 1, the state before the rotation of expression cam.

Fig. 4 is the vertical view of the contact pin part of presentation graphs 1, and the rotation of expression cam, switch contact pin fall into the state of pars intermedia.

Fig. 5 is the vertical view of the contact pin part of presentation graphs 1, and the expression cam continues rotation, switch contact pin and falls into the state of interior perimembranous.

Fig. 6 represents the relation of the stroke and the cam amount of movement of washing machine, (A) the automatic washing mode of expression washing machine, (B) expression and (A) corresponding cam amount of movement.

Fig. 7 is the broken section vertical view of conventional motor actuator.

Fig. 8 is the side elevation in partial section of Fig. 7.

Fig. 9 is the sectional stretch-out view along the line of tie point OABCDE among Fig. 7.

Figure 10 is the broken section vertical view with the driven-mechanism of the motor actuator driving of Fig. 7.

Figure 11 is the circuit diagram of the motor actuator of Fig. 7.

To Fig. 6 embodiments of the invention are described below in conjunction with Fig. 1.

This motor actuator 1 is used to open and close the draining valve of washing machine, and all and Fig. 7 all omits its detailed description to traditional product identical construction shown in Figure 11.

The cam 2 of this motor actuator 1 has 3 parts as shown in Figure 1, promptly outermost perimembranous 2a, become the pars intermedia 2b of the 1st end difference and become the interior perimembranous 2c of the 2nd end difference.This cam 2 is the same with traditional product, the rotation that transmits motor rotor 61 through gear series mechanism.The binding post 8 that is connected with an end of the motor coil 55 that is used to make rotor 61 rotations is connected with the terminal 6 of switching on, and this energising terminal 6 stretches out to the outside from housing 7, can be connected with power supply.On the other hand, constitute switch sections with 3 the switch contact pin 3,4,5 that are arranged at cam 2 sides, the binding post 9 that is connected with the other end of motor coil 55 is connected with switch contact pin 3.

Switch contact pin 3 has the bend 3a that contacts with cam 2, the 3b of contact portion that contacts with switch contact pin 4, and the wire connecting portion 3c that welds with the binding post 9 of coil.Switch contact pin 4 is by with the tab portion 4a of switch contact pin 3, switch contact pin 5 contacts and become the external cabling that can be connected with power supply and constitute with the portion of terminal 4b of energising terminal, and switch contact pin 5 is by the 5a of contact portion that contacts with switch contact pin 4 and become the external cabling that can be connected with power supply and constitute with the portion of terminal 5b of the terminal of switching on.

The wiring relation that energising terminal 6, motor coil 55 (see figure 8)s and solenoid 40 (see figure 9)s, switch contact pin are 3,4,5 as shown in Figure 2.That is, the binding post 8 that energising terminal 6 is connected with an end of motor coil 55 connects, and the binding post 9 of the other end of motor coil 55 is connected with switch contact pin 3.In addition, between energising terminal 6 and switch contact pin 5, be connected in parallel solenoid 40 and capacitor 10, diode 11 also is being connected in series.As shown in Figure 1, an end of this diode 11 is connected with switch contact pin 5 with tongue piece portion 14, and the other end is connected with solenoid 40 with capacitor 10 with tongue piece portion 15.

Portion of terminal 4b, the portion of terminal 5b that becomes the terminal of switching on all passed through in switch contact pin 4,5, and the CPU12 with external connection line with the control part that becomes the action of control motor and electromagnet is connected, and is connected with AC power 13 by this CPU12.On the other hand, energising terminal 6 also is connected with power supply 13 through external connection line.The CPU12 of the control part in the present embodiment represents control circuit that washing machine integral body is controlled, carry out switching controls by this control circuit according to the mode switch of washing machine (omitting diagram), to change, to select "on" position to switch contact pin 4,5, the control part that this motor actuator is used can certainly be set in addition, with the "on" position of switching controls switch contact pin 4,5 etc. outside the control part of washing machine body.

The action of the motor actuator of the present invention 1 of above-mentioned structure as shown in Figure 6.In when action explanation, be that example describes when being automatic preference pattern with the pattern of washing machine.

At first, washing machine is carried out washing procedure A, and before this washing procedure A began, CPU12 made power supply 13 and switch contact pin 5 energisings, contact pin 4 then not with power supply 13 conductings.Under this state, cam 2 is positioned at position shown in Figure 3 with switch contact pin 3, and the bend 3a of switch contact pin 3 is on the outermost perimembranous 2a of cam 2, and switch contact pin 3,4,5 one-tenth are in contact with one another state.Its result, to motor coil 55 supply capabilities, rotor 61 rotations, cam 2 begins to do the inhour rotation.That is, constitute the circuit of power supply 13, terminal 6, motor coil 55, switch contact pin 3,4,5, CPU12 and power supply 13, motor is driven, the result, and the cam 2 that is in Fig. 3 state begins rotation.In case the bend 3a of switch contact pin 3 falls into the pars intermedia 2b of cam 2, switch contact pin 3,4 is promptly followed the shape of cam 2 and is moved to the left, and the restriction that is moved to the left the protruding 31a that is subjected to being located at housing of switch contact pin 5, so as shown in Figure 4, switch contact pin 5 breaks away from switch contact pin 3,4.Therefore, the electric power of motor supplied with stop, the rotation of cam 2 also stops.

At this moment, supply with because of CPU12 makes the "on" position of 5 of power supply 13 and switch contact pin to the electric power of solenoid 40 and to continue to keep, so plunger 37 continues the maintenance on-states, as shown in Figure 9, gear 64 also continues the state that the maintenance one is connected with gear 67.Therefore, though applied return force for the rotor 61 of motor from drain valve mechanism 93 1 sides, because of the starting torque between rotor 61 and the stator (detent torque), not counter-rotating of rotor 61 still keeps the origin-location, so cam 2 also keeps the origin-location.In addition, also can prevent the counter-rotating of rotor 61, make it overcome return force from draining valve one side with control lever shown in Figure 9 65 anti-reverse mechanisms such as grade.

Here, be provided with strong spring and weak spring in the drain valve mechanism 93, the power of strong spring becomes the power of closing draining valve, and the weak spring then first half when cam 2 rotations works, and does not reach the degree of opening bellows 85.In other words, cam 2 begins rotation, fall into the pars intermedia 2b of cam 2 to the bend 3a of switch contact pin 3 before, have only the effect of weak spring, fail to open bellows 85.In case cam 2 remakes the effect field that strong spring is rotated and entered to inhour from state shown in Figure 4, then the bellows 85 of drain valve mechanism 93 overcomes the elastic force of this strong spring and begins to open, when the bend 3a of switch contact pin 3 fell into the interior perimembranous 2c of cam 2, bellows 85 was opened fully.

When the bend 3a of switch contact pin 3 falls into the state of pars intermedia 2b, the bellows 85 of drain valve mechanism 93 is not opened, so cam 2 rotate to this position during, as long as utilize the effect of pulley 48 Wound steel ropes 49 that rotate with cam 2 one, fixing in the washing machine cut off with clutch, and with releasing of brake, then washing machine can make washtub do and irrelevant the rotating freely of discharging mode, also can make washtub do the rotation opposite with the direction of rotation of impeller.

Thereby, adopt motor actuator of the present invention, unlike traditional motor actuator, can only when draining, move, even and also can move during the washing mode before discharging mode, make cam 2 rotate to the state of Fig. 4 from the state of Fig. 3, utilize the action of the Wound steel rope 49 that this action causes, can control fixing in the washing machine cut off and with releasing of brake etc. with clutch.Thereby, adopt motor actuator of the present invention, when washing mode, can make the current in the washtub produce eddy current etc., to increase cleaning strength.In addition, the rotation of the washtub that washing machine one side is carried out can with the same direction of the rotation of impeller, or rotating speed is identical with the rotating speed of impeller.Again, the drive source of also available control circuit control washtub and with its combination of actions.And the rotation of washtub can be same drive source with impeller both with driving force, but also separate separately.

In case this washing procedure A finishes, CPU12 promptly interrupts being connected of power supply 13 and switch contact pin 5.Therefore, to the energising disconnection of solenoid 40, the clutch mechanism in the gear series mechanism cuts off, and cam 2 returns to the preceding state of motor actuator action of Fig. 3 owing to the recuperability of the weak spring of drain valve mechanism 93 is got back to the original place.Owing to this recovery, be used for fixing the fixing clutch of using of washtub, simultaneously brake is stopped.The washing mode before discharging mode as mentioned above, adopts motor actuator of the present invention, even also can play a role.

The dehydration procedure B that when discharging washings washings is dewatered below is described.Before this dehydration procedure B, when CPU12 made power supply 13 and switch contact pin 4,5 all become "on" position, motor coil 55 was supplied to electric power, and cam 2 begins to be rotated counterclockwise from the state of Fig. 3.And when the bend 3a of switch contact pin 3 fell into the pars intermedia 2b of cam 2, switch contact pin 5 broke away from switch contact pin 4, but because of power supply 13 also is connected with switch contact pin 4, so rotor 61 does not stop the rotation.The result is that cam 2 continues rotation, and the bend 3a of switch contact pin 3 falls into the interior perimembranous 2c (see figure 5) of cam 2 then.At this moment, the mobile restriction that is subjected to protruding 31b set on the housing because of switch contact pin 4 falls into so have only switch contact pin 3 to follow cam surface, because this falls into, switch contact pin 3 breaks away from switch contact pin 4, so the rotation of rotor 61 stops, the rotation of cam 2 also stops.The bellows 85 that opens and closes draining valve is because the spiral of steel wire rope 49, after the bend 3a of switch contact pin 3 falls into pars intermedia 2b to fall into interior perimembranous 2c during open, the water of washtub is discharged from.In addition, connect at motor, cam 2 begins rotation, to the bend 3a of switch contact pin 3 fall into cam pars intermedia 2b during, fixing in the washing machine is cut off releasing of brake with clutch.

In case bellows 85 is opened, draining finishes, washing machine promptly enters dehydration procedure B.At dehydration procedure B, washtub and the rotation of impeller one are dewatered to washings.This dehydration realizes by the one rotation simultaneously of impeller and washtub, as previously mentioned, before the draining valve of washtub is opened fixing with clutch be cut off, releasing of brake, so different when washing, can be rotated smoothly.In case this dehydration procedure B finishes, CPU12 promptly stops the energising to switch contact pin 5.Therefore, disconnect to the energising of solenoid 40, the clutch mechanism in the gear series mechanism is cut off, and cam 2 returns owing to the strong spring of drain valve mechanism 95 1 sides and the elastic force of weak spring, returns to the state of Fig. 3.Between this convalescence, in case the fixing clutch of using that washtub is used is stopped brake simultaneously.

Then, enter the rinsing process C that carries out rinsing.Before this rinsing process C, CPU12 makes power supply 13 and switch contact pin 5 energisings, but not with contact pin 4 conductings.Therefore, motor actuator 1 carries out and enters identical action before the washing procedure A, and when the bend 3a of switch contact pin 3 fell into the state of pars intermedia 2b of cam 2, motor stopped the rotation.When the bend 3a of switch contact pin 3 falls into the state of pars intermedia 2b, because of the bellows 85 of drain valve mechanism 93 is not opened, so during cam 2 rotates to this position, if utilize with the effect of pulley 48 Wound steel ropes 49 of cam 2 one rotation with in the washing machine fixing with clutch cut off, with releasing of brake, the same state that rotates freely that becomes of washtub then with washing procedure A, can carry out with washing procedure A in the identical action of action.Thereby, adopting motor actuator of the present invention, in the later rinsing process of discharging mode, also can play a role.In addition, the action of washtub at this moment also can be different from washing procedure A, and takes to be suitable for most the action of rinsing.

When rinsing process C finished, CPU12 stopped the energising of power supply 13 and switch contact pin 5.Therefore, same when finishing with washing procedure A, cam 2 returns to the state of Fig. 3.Then, enter last operation, be dehydration procedure D.The action of the motor actuator 1 before this dehydration procedure D and the action of washing machine are identical with aforesaid dehydration procedure B.And the action of dehydration procedure D when finishing is also identical with dehydration procedure B.In addition, in recovery actuation time of the cam 2 when rinsing process C or dehydration procedure D finish, washtub is carried out fixing again, promptly brake is stopped in clutch fixing.

In above embodiment, fall in switch contact pin 3 during the pars intermedia 2b of cam 2, utilize the effect with pulley 48 Wound steel ropes 49 of cam 2 one rotation, disconnect with clutch the washtub of washing machine is fixing, and with releasing of brake, so washtub is rotated freely.For this reason, use motor actuator of the present invention, need not to make the complex structureization of washing machine, can in the washing procedure of washing machine, take the washing methods different, can improve the function of washing machine with the conventional washing method.In addition, the action of carrying out during switch contact pin 3 falls into pars intermedia 2b both can be to cut off with clutch fixing, also can be releasing of brake.

In addition, the various embodiments described above are preferred embodiments of the present invention, but are not limited to this, can do various distortion in the scope that does not break away from main points of the present invention.For example, can be to solenoid 40 energising without switch contact pin 5, but establish 1 terminal again, the other end of power supply 13 is connected with this terminal.Again, about the relation between the clutch mechanism of plunger 37 and gear series usefulness, can not when solenoid 40 energisings, to make the clutch mechanism of gear series usefulness form fastening state and can be rotated transmission, but when the energising of solenoid 40 disconnects, make the clutch mechanism of gear series usefulness form fastening state.

Again, a plurality of switch contact pin more than 4 can be set also, and a plurality of end differences more than 3 correspondingly are set, also can switch contact pin be set, or the part in a plurality of switch contact pin is used as other functions at 2 positions of cam 2 both sides.

In addition, about the recovery of cam 2, can be without the elastic force of spring 89 grades of drain valve mechanism 93, and be to use can positive and negative rotation motor, and make the motor counter-rotating.In this occasion, need not adopt the clutch mechanism of mechanism such as plunger 37 and gear series usefulness.

In the above-described embodiments, the main purpose of motor actuator is the draining valve that opens and closes washing machine, is the occasion that opens and closes ventilation fan but this motor actuator is equally applicable to main purpose.That is, fall in switch contact pin 3 during the pars intermedia 2b of cam 2, also can utilize the effect of pulley 48 Wound steel ropes 49 that rotate with cam 2 one to carry out ventilation fan switching other actions in addition.In addition, this motor actuator also can be used for the action beyond the ventilation fan, for example Men switching etc., and also available this motor actuator opens and closes action in addition.

Motor actuator of the present invention has 1 energising terminal that can be connected with power supply and be connected with an end of motor coil, and a plurality of energising terminals can be connected with power supply and be connected with the other end of said motor coil are set, available above-mentioned a plurality of energising terminals change the "on" position of motor, a plurality of rotation stop positions of the output shaft that setting driving manipulation driven-mechanism is used, so can utilize the rotation of output shaft of this motor actuator to open and close the draining valve of washing machine or ventilation fan etc., the pattern of washing machine or ventilation fan is changed or increases in the action of change or increase driven-mechanism simultaneously, and can improve its performance.

In addition, this motor actuator only need increase number of terminals etc., and need not to make motor actuator to maximize especially, so use the electrical equipment of this motor actuator can improve the performance maximization that but can not become.

Claims

1. motor actuator, have by switching on and rotor rotated to motor coil, is connected through reduction gearing series and with this rotor and drives the output shaft that the manipulation driven-mechanism is used, it is characterized in that, also has 1 energising terminal that can be connected with power supply and be connected with an end of described motor coil, and a plurality of energising terminals can be connected with power supply and be connected with the other end of described motor coil are set, change the "on" position of motor with described a plurality of energising terminals, set a plurality of rotation stop positions of described output shaft, the a plurality of energising terminals that are connected with the described motor coil other end have at least 3 switch contact pin that are subjected to the cam control of described output shaft interlock rotation, the 1st switch contact pin in this switch contact pin is connected with the described motor coil other end, rest switch contact pin simultaneously can and can be connected with power supply with described the 1st switch contact pin contact, constitute described a plurality of energising terminal by described rest switch contact pin, on described cam, be provided with the end difference more than at least 2 that described rest switch contact pin is being moved on the diverse location.

2. motor actuator according to claim 1, it is characterized in that, in described reduction gearing series, be provided with and between described rotor and described output shaft, will rotate the clutch apparatus that is transmitted and can the transmission disconnection, can make the positive and negative rotation of described output shaft, by described clutch apparatus the positive and negative rotation of described output shaft be controlled described driven-mechanism is driven manipulation.

3. motor actuator according to claim 2, it is characterized in that, described clutch apparatus has solenoid, the energising terminal that is connected with described motor coil one end connects described solenoid one end, connects the described solenoid other end with in a plurality of energising terminals that the described motor coil other end is connected one.

4. motor actuator according to claim 2, it is characterized in that, described driven-mechanism is subjected to the recovery reinforcing to original position, rotary driving force by described rotor makes described output shaft rotation and described driven-mechanism is moved from described original position, overcomes the described afterburning shift position that keeps described driven-mechanism of restoring by described clutch apparatus simultaneously.

5. motor actuator according to claim 4 is characterized in that, described driven-mechanism is the opening and closing of drain valve mechanism of washing machine or the switching mechanism of ventilation fan blind window.

6. motor actuator, has motor, the cam that driven by this motor, the rotation of described motor is sent to the gear series mechanism of described cam, contact with described cam and the switch contact pin of switch control is carried out in the energising of the described motor of subtend, the actuator that the rotation of described motor transmits through described gear series mechanism is made kinetoplast, it is characterized in that, the end difference more than at least 2 that makes described switch contact pin action is set on described cam, described switch contact pin more than 3 is set simultaneously, wherein 1 switch contact pin can be connected with an end of power supply and all the other a plurality of switch contact pin then can be distinguished the other end energising of independent and described power supply with switching on, and sets a plurality of stop positions that described actuator is made kinetoplast.

7. motor actuator according to claim 6, it is characterized in that, described 1 switch contact pin connects with the energising terminal that can be connected with described power supply through motor coil, described all the other a plurality of switch contact pin then become a plurality of energising terminals that can be connected with described power supply, by using the control part that is connected with described energising terminal that the "on" position of described a plurality of energising terminals is carried out switching controls, set a plurality of stop positions that described actuator is made kinetoplast.

8. motor actuator according to claim 7, it is characterized in that, has the clutch apparatus of packing described gear series mechanism into and can cut off the transmission that described motor is rotated, and the electromagnet that this clutch apparatus is moved, this electromagnet has solenoid, the energising terminal that is connected with described motor coil one end connects described solenoid one end, connect the described solenoid other end with in a plurality of energising terminals that the described motor coil other end is connected one, with the control part that is connected with described energising terminal the "on" position of described a plurality of energising terminals is carried out switching controls, control the action of described motor and clutch apparatus, set described actuator and make a plurality of stop positions of kinetoplast, move control simultaneously.