CN1283720A

CN1283720A - Washing machine

Info

Publication number: CN1283720A
Application number: CN00124008A
Authority: CN
Inventors: 铃木好博; 武田吉秋; 大杉宽
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 1999-08-10
Filing date: 2000-08-10
Publication date: 2001-02-14
Anticipated expiration: 2020-08-10
Also published as: KR20010039798A; JP3263382B2; CN1224750C; JP2001046785A; TW483966B; KR100386792B1

Abstract

The present invention relates to a washing machine consisting of a washing/dewatering tank in the frame, a clothing inlet port on the washing/dewatering tank, a lid controlling the inlet port and a lock liver wedging into the lid for closing which is operated by the plunger of solenoid. The lock liver is retreated against the return spring by the plunger to a position engaged with the lid and is retained by a heart cam. According to the invention, the power consumption of the solenoid is reduced and the locking device is minimized.

Description

Washing machine

The present invention relates to the washing machine of locking device with cover.

Establish traditional single-channel type automatic washing machine that the center that is provided with in water jacket, the described water jacket has the washing and dewatering groove of stirring vane in the housing, its housing top is provided with the loam cake as clothing class dispensing port, can open and close arbitrarily.Safety when rotating in order to ensure the washing and dewatering groove makes under this lid closing state rotation drive the washing and dewatering groove, lid is set opens and closes sense switch covering, and is provided with the lid lock device that the locking loam cake does not allow it open in rotation in addition.

This lid lock device is that the solenoidal plunger of a kind of usefulness makes lid be locked into the structure that can not open directly or indirectly, when lock-out state, because of solenoidal electronic coil continues energising, thereby increase power consumption, uneconomical, in addition because energising increases caloric value, so need to suppress the radiator structure that temperature rises, make the complicated and maximization of device.

In view of the foregoing, the objective of the invention is to, provide that solenoid power consumption is few, the washing machine of lid lock device with miniaturization.

Another object of the present invention is to, provide to have the washing machine that to confirm to cover locked lid lock device.

Another purpose of the present invention is, the washing machine with the lid lock device that can detect the certain non-locking of lid is provided.

Other purposes of the present invention are, provide to have and can detect the washing machine that lid is locked really, lid that can carry out dehydrating operation control is decided device.

To achieve these goals, the present invention has the washing and dewatering groove that is located in the housing, above this washing and dewatering groove opening clothing class dispensing port, open and close the lid of this clothing class dispensing port, make this lid can not carry out the securing rod of opening action with covering to engage, in the washing machine that this securing rod is operated by solenoidal plunger, be characterized in, make described securing rod utilize described plunger to overcome return spring and move to the position that engages with described lid, and keep by heart-shaped cam in this position.

Another characteristics of the present invention are, are embedded with trigger switch at the head of described plunger, utilize with the operation of cam of this trigger switch interlock and operate described securing rod and control electric terminal.

Other characteristics of the present invention are, head at described plunger is embedded with trigger switch, utilize and to operate described securing rod with the operation of cam of this trigger switch interlock and electric terminal is used in control, utilize the return spring of on the rotating shaft of described operation of cam, loading onto simultaneously and described trigger switch is applied the plunger return force.

The present invention makes securing rod utilize solenoidal plunger to overcome return spring and moves to and cover the position that engages and kept by heart-shaped cam in this position, so can obtain that solenoid power consumption is few, the lid lock device of miniaturization.

The present invention can utilize with the control of securing rod interlock and confirm to cover locked state with electric terminal.In addition, when cutting off the power supply, solenoid detects the state that covers certain non-locking by confirming to control with electric terminal.

Can detect lid with electric terminal locked really and carry out dehydrating operation and control by confirming to open and close sense switch and control by lid when solenoid cuts off the power supply in the present invention.

Description of drawings

Fig. 1 is the washing machine stereoscopic figure of the invention process form.

Fig. 2 is vertical side view of washing machine shown in Figure 1.

Fig. 3 is the partial lateral vertical view of lid lock device portion in the washing machine shown in Figure 1.

Fig. 4 be the longitudinal side of washing machine middle cover latch-release state shown in Figure 1 to cutaway view, wherein (a) is that vertical profile side view, (b) of lid lock device portion are that lid opens and closes the vertical profile side view of checking switch portion.

Fig. 5 is the vertical profile side view of the lid lock device portion of washing machine middle cover lock-out state shown in Figure 1.

Fig. 6 is the block diagram that input part, display part, main control unit, the lid of washing machine shown in Figure 1 opens and closes sense switch and lid lock device.

Fig. 7 is the control process chart that the main control unit of washing machine shown in Figure 1 carries out the fixed and latch-release of cover lock.

Fig. 8 is the vertical profile side view of the lid lock device of washing machine shown in Figure 1 at the latch-release state.

Fig. 9 is the cross-sectional vertical view of lid lock device shown in Figure 8.

Figure 10 is the vertical profile side view of the lid lock device of washing machine shown in Figure 1 at lock-out state.

Figure 11 is the cross-sectional vertical view of lid lock device shown in Figure 10.

Figure 12 is the vertical profile side view of washing machine cover locking device whirling detected state shown in Figure 1.

Figure 13 is the cross-sectional vertical view of lid lock device shown in Figure 12.

Figure 14 is the contact strip action bars of the lid lock device of example of the present invention, (a) is vertical view, (b) is side view.

Figure 15 is the heart-shaped cam of the lid lock device of example of the present invention, (a) is vertical view, (b) is the vertical profile side view.

Figure 16 is the trigger switch of the lid lock device of example of the present invention, (a) is vertical view, (b) is front view, (c) be the longitudinal side to cutaway view, (d) be vertical main cutaway view.

Figure 17 is the operation of cam of the lid lock device of example of the present invention, (a) is vertical view, (b) is side view.

Figure 18 is the connecting rod of the lid lock device of example of the present invention, (a) is vertical view, (b) is that the longitudinal side is to cutaway view.

Figure 19 is the securing rod of the lid lock device of example of the present invention, (a) is vertical view, (b) is side view.

Fig. 1 is the outward appearance main body figure of the washing machine of the invention process form, and Fig. 2 is the vertical profile side view of this washing machine.

Among the figure, the 1st, cover the framework of internal mechanism, the 2nd, the washing and dewatering groove, its rising wood has fluid balancer 3, bottom inside is provided with rotation stirring vane 4,5th freely, water jacket, and described washing and dewatering groove 2 can rotate freely within it, be equipped with at the installation base plate 7 of its bottom outside by steel plate system and connect Vidacare corp 6, water jacket is by vibration damping support apparatus 8 hanger bearings on four angles, housing 1 upper end.

Have the clothing class throw in the loam cake 9 of opening 9a cover frameworks 1 upper opening and with this opening ora terminalis embedding mutually, front control plate 10 and rear control plate 11 1 are reinstated mounting screw (not shown) and are connected on the framework 1.

In the front control plate case 12 that forms between loam cake 9 and the front control plate 10, the input part (switch group) 13 that comprises power switch, display part (display element group) 14 are housed, send the level sensor 15 and the main control unit 16 of water level signal according to the water levels in the water jacket 5.

In the rear control plate case 17 that between loam cake 9 and rear control plate 11, forms, be equipped with influent side is connected with water tap connector 18, the soft water waterworks 20 that soft water water outlet side and water filling portion 19 are relative.In addition, in this rear control plate case 17, also have washings water-suppling electromagnetic valve (omitting among the figure) and softener to throw in water-suppling electromagnetic valve (omitting among the figure).

The clothing class dispensing port 9a that forms on the loam cake 9 is opened and closed by lid 21 and is covered with freely, and is provided with to detect and cover the lid lock devices 23 that 21 lids that open and close open and close sense switch 22 (see figure 3)s and locking cover 21 can not be opened.Chat after the detailed structure of this lid lock device 23.

The water discharge outlet 5a of water jacket 5 bottoms is connected with drainpipe 25 by drain solenoid valve 24, and choke box 5b is connected with described level sensor 15 by air hose 26.

The following ora terminalis of framework 1 has the synthetic resin system base 28 of four angle upper belt foots 27.

Described Vidacare corp 6 covers waterproof by cover 29, and the electric power control loop of the power supply of motor in this Vidacare corp 6 being controlled according to the order of described main control unit 17 is that subsidiary control loop 30 is contained on the base 28.

In this example, control device is divided into main control unit 16 and sub controlling unit 30, also it can be merged into a control device.

Fig. 3 to Fig. 5 represents that described lid opens and closes the state that is provided with and the operating state of sense switch 2 and lid lock device 23.

Lid opens and closes sense switch 22 to have in the box 22a that places resin (ABS) system and utilizes ultrasonic wave to fuse permanent magnet 22b on the leading edge of lid 21, be contained on the substrate and place the IC22d of ear suddenly that is installed in screw after pouring into a mould the encapsulation process waterproof in the resinous box 22c on the front control plate 10 and faces with described permanent magnet 22, judges and covers 21 position (open and-shut mode) by detected magnetic flux that permanent magnet 22b sent by ear IC22d suddenly.Lid 21 under buttoned-up status suddenly ear IC22d most of in the face of permanent magnet 22 magnetic pole and be subjected to more magnetic flux, the magnetic pole of facing when lid 21 is made opening action reduces, suffered magnetic flux also reduces, change this magnetic flux into electric signal, detect by the size of differentiating this electric signal and cover 21 open and-shut mode.

Lid lock device 23 is arranged on the loam cake 9, inserts, extracts in the connecting hole 21a of securing rod 410 on the leading edge of lid 21 that advances and retreat by the securing rod from front control plate 10 advance and retreat window 10a, just can cover the locking and the latch-release of 21 on-off action.Promptly as shown in Figure 4, the securing rod 410 among the connecting hole 21a of the lid 21 of clothes covering class dispensing port 9a extracted just can unlock and can open lid, as shown in Figure 5, insert securing rod 410 and can not open lid with regard to locking.

In addition, this lid lock device 23 has by detecting securing rod 410 and inserts to make in the connecting hole 21a and cover 21 controls that are in the lock state sagging whirling should move bar 420 with electric terminal (afterwards chatting) and in the outside of water jacket 5, this bar 420 is by operating described control electric terminal with the swing of water jacket 5, thereby the imbalance of washings detects the excessive phenomenon of whirling amount of washing and dewatering groove 2 when utilizing dehydration.

Fig. 6 is the block diagram that input part 13, display part 14, main control unit 16, the lid of this washing machine opens and closes sense switch 22 and lid lock device 23.

Main control unit 16 is based on computer 16a and holder 16b, with input part 13, lid switching sense switch 22 and control signal input, the washing and the running of dewatering are controlled according to being stored in the control handling procedure in the holder 16b with electric terminal 430.

The operation of the advance and retreat of securing rod 410 can be by action bars (afterwards chatting), operation of cam 440 and trigger switch 450 and undertaken by solenoid 460 and return spring 470 and heart-shaped cam 480.

Solenoid 460 is by 461 pairs of stator cores 462 of solenoid and plunger 463 excitations, thereby attracts (retreating) to the stator core side plunger 463.The 464th, support.Be embedded with trigger switch 450 at plunger 463 heads.

Trigger switch 450 utilizes 470 pairs of plungers 463 of return spring always towards the direction reinforcing that passes in and out, thereby engage the going-back position that keeps plunger 463 with heart-shaped cam 480 or remove this maintenances, engage with operation of cam 440 and the advance and retreat of plunger 463 are moved pass to this operation of cam 440 and make its rotational angle.

Operation of cam 440 engages with securing rod 410 by connecting rod, thereby rotatablely moving of operation of cam 440 converted to the advance and retreat motion of securing rod 410, under the turnover state in by plunger 463 pulling securing rod 410 being inserted to cover 21 connecting hole 21a, the control of often opening pushed with the contact strip 431 of electric terminal 430 it is contacted with contact strip 432, so just make this control be in closed condition with electric terminal 430.Rotational angle with the state that utilizes return spring 470 securing rod 410 is extracted from cover 21 connecting hole 21a under, disconnect this control with the contact strip 431 of electric terminal 430 with in electric terminal 430 leaving the control of often opening, be not subjected to the reaction force of this contact 431.

When whirling should move bar 420 with water jacket 5 swing when mobile, this control retreats with the contact strip 432 of electric terminal 430 and leaves contact strip 431 and make the state that is in disconnection with electric terminal 430 of controlling.

At this, the control that the cover lock of main control unit 16 is reached latch-release is surely handled and is described referring to Fig. 7.

Main control unit 16 washs or when dewatering washing and dewatering groove 2 rotation, at first open and close sense switch 22 and confirm that covering 21 buttoned-up detection signals is output by lid, then solenoid 461 energisings to solenoid 460 attract plunger 463 and securing rod 410 are advanced, and insert it into cover in 21 the connecting hole 21a and lock lid can not be opened.Then, to the outage of the solenoid of solenoid 460, utilize heart-shaped cam 480 to keep the position of the plunger 463 that has been attracted.This cover lock is decided state and can be carried out the logic judgement and confirmed by lid being opened and closed signal that sense switch 22 and control sends with electric terminal 430.When failing to lock, attempt locking to solenoid 461 energisings once more, be failure in the time of can not locking when carrying out three times.

When main control unit 16 has confirmed just to turn to behind the lock-out state required washing or dehydration procedure under lid 21 closed conditions.

But cover 21 locking when making it be in open mode when removing, the rotational speed signal that main control unit 16 sends with reference to the turn-sensitive device of being located in the Vidacare corp 6 (omitting among the figure), perhaps test the elapsed time that Vidacare corp 6 has cut off the power supply, attract plunger 463 in the interim energising in the solenoid 461 of solenoid 460 of washing and dewatering groove 2 rotations stopping back, thereby make heart-shaped cam 480 move to the state that going-back position keep to be removed, make this lid 21 be in the latch-release state thereby make operation of cam 440 drive to the clockwise direction rotational angle that securing rod 410 retreats and from cover 21 connecting hole 21a, extract by the elastic force of return spring 470.This latch-release state can be confirmed with electric terminal 430 by open control.When failing to unlock, energising is attempted unlocking in solenoid 461 again, is failure in the time of can not unlocking when carrying out three times.

Cover lock reaches the status of fail of cover lock in removing surely surely, can utilize the interim shutdown switch that is located at input part 13 to remove, and restarts and attempts.

When the washing and dewatering groove 2 in washing or the dehydration can cause groove 2 whirlings when imbalance takes place the washings in this washing and dewatering groove 2 when rotated.And when this whirling amount increased, then water jacket 5 significantly waved, and should move bar 420 with whirling and contact and make these bar 420 rotational angles, drive contact strip 432 and retreat and make control with electric terminal 430 disconnections.Main control unit 16 during washing and dewatering groove 2 rotation, monitors the switching of control with electric terminal 430 in washing and dehydration procedure, carry out the required control processing of whirling that suppresses washing and dewatering groove 2 when this control disconnects with electric terminal 430.

The control of main control unit 16 make basically washing and dewatering groove 2 will cover in advance when rotated 21 the locking it can not be opened, unlocking after rotation stops to open it, but in the process that supplies water in low speed rotation limit, washing and dewatering groove 2 limit, make it be in the latch-release state in order to add the input washings.

In addition, for fear of the danger that child's mischief brings, long-time (3 seconds) pin the special switch (such as wash switch) in the input part 13, just can be attached to make in the overall process of washing and dehydration to cover 21 and lock the child's lock function that can not open.Long-time (3 seconds) are pinned specific switch (such as wash switch) and just can be removed child's lock function again.

Below with reference to Fig. 8 to Figure 19 the concrete structure and the action of described lid lock device 23 are described.

Lid lock device 23 with above open nowel 490 be the main body assembling afterwards setting-in top box 510 with cover nowel 490 above.

Nowel 490 is shaped by resin (polypropylene that contains glass fibre) and forms, and should move on bar installs with projection 491 at the whirling that is based in bottom surface (outside), engages the engaging axle 421 that whirling should move bar 420 rotationally and makes it sagging.Helical form pushing spring 520 between the spring bearing housing 422 that should move bar 420 by the spring bearing housing 492 and the whirling of nowel 490 bottom surfaces should move under the normal condition that bar 420 is in regulation whirling and switches on.

In addition, in nowel 490 bottom surfaces (outside) rotating contact strip action bars 530 is installed, it rotates after should moving bar 420 application of forces to described whirling, and control is retreated with the contact strip 432 of electric terminal 430.This contact strip action bars 530 is the L font as shown in figure 14, with the connecting hole on its bend 531 rotatably with nowel 490 diapires on protrusions snap, it is relative to make a foot 532 and described whirling should move bar 420, and another foot 533 is relative with the contact strip 432 of electric terminal 430 with control.

Be provided with solenoid 460, return spring 470 and the heart-shaped cam 480 that control is embedded with trigger switch 450 on electric terminal 430, operation of cam 440, plunger 463 in nowel 490 inboards.Control the next door that is arranged on described solenoid 460 and heart-shaped cam 480 with the relative contact strip 431,432 of electric terminal 430, parallel with plunger 463 advance and retreat directions, thus help miniaturization.

Heart-shaped cam 480 carries in nowel 490 bottom surfaces (inboard), can slide with respect to the rectangular direction of the advance and retreat direction of trigger switch 450.This heart-shaped cam 480 as shown in figure 15, around heart-shaped projection 481, be provided with the different slot of the bottom surface degree of depth 482, when engagement pin 451 advance and retreat of the trigger switch 450 that engages with this groove 482 move (above-below direction among the figure), because of the suffered component of inclination of slot 482 bottom surfaces make snap-in lock 451 along and the rectangular direction of advance and retreat direction move (left and right directions among the figure), and engagement pin 451 is fastened on the recessed sidepiece of projection 481.The bottom surface height of this groove 482 of numeral among Figure 15 (a) in the slot 482.

Above heart-shaped cam 480, be provided with the solenoid 460 that is embedded with trigger switch 450 at plunger 463 heads, two sides for this trigger switch 450 that leads, lead and the mobile stabilisation of will advancing and retreat by the guiding rib 493a, the 493b that on nowel 490, hold up, the engagement pin 451 that is installed on the trigger switch 450 towards the below is engaged with the slot 481 of described heart-shaped cam 480.

Trigger switch 450 forms the plunger embedded space that embeds plunger 463 heads in sidewall 453a, the 453b inboard that is convexly equipped with engaging

pawl

452a, 452b as shown in figure 16, erects to be provided with above the diapire in this space to prevent plunger slippage projection 454.Below this diapire, convex with the engagement pin installation tube portion 456 that described engagement pin 451 is installed, its position and describedly prevent the plunger slippage with protruding 454 concentrics, its inboard engagement pin installing hole 456a extends to the described inboard that prevents slippage with projection 454 always.Above the upper wall of plunger embedded space, be provided with the operation of cam snap fit tabs 457 that engages with operation of cam 440, be provided with the return spring snap fit tabs 458 of band slot 458a at the space head.

The combination of trigger switch 450 and plunger 463 is, after the head of plunger 463 is inserted in the plunger embedded space of oblique upper between sidewall 453a, the 453b of trigger switch 450, it is rotated in level,

sidewall

453a, 453b and engaging

pawl

452a, 452b embrace plunger 463 like this, make to prevent that slippage from preventing among the 463a of slippage hole with projection 454 embeddings.In engagement pin installing hole 456a, insert pushing spring 459 earlier, put into engagement pin 451 then and install.

First setting-in return spring 470 on the operation of cam mounting column 494 that the inboard setting in nowel 490 bottom surfaces is provided with, the one end is engaged with the slot 490a of nowel 490, the other end engages with the slot 458a of the return spring engaging protrusion 458 that is located at described trigger switch 450 heads, thereby to trigger switch 450 (plunger 463 is extracted out) the direction application of force of marching forward.Operation of cam 440 is fastened on this operation of cam mounting column 494 and can rotates.Return spring 470 makes the power of operation of cam 440 come-up directions under the state that axially elongates a little of operation of cam mounting column 494.

This operation of cam 440 is a matrix with subtriangular lobe plate 441 as shown in figure 17, and portion is provided with the trigger switch connecting hole 441a that engages with the operation of cam snap fit tabs 457 of described trigger switch 450 in the central, be provided with the protruded stigma portion 442 that has installing hole 442a that engages freely with described operation of cam mounting column 494 rotations on an one angle, other two angles are provided with connecting rod connecting hole 441b and contact strip operating portion 443.

Operation of cam 440 is that the installing hole 442a with protruded stigma portion 442 is fastened on the operation of cam mounting column 494, the operation of cam snap fit tabs 457 of described trigger switch 450 is embedded among the trigger switch connecting hole 441a, and contact strip operating portion 443 is with respect to the back side of control with the contact strip 431 of electric terminal 430.Under the state of operation of cam 440 rotational angle, leave contact strip 431, attracted by the plunger 463 of solenoid 460 and the opposite counter-force of attraction on this plunger 463 during rotational angle with acting on not being subjected to being returned spring 470 application of forces.Head with contact strip 431 bends towards the direction of leaving operation of cam 440 in addition.Can reduce to transport back the elastic force of spring 470 like this, and can reduce the attraction of solenoid 460, thereby help miniaturization.

Top box 510 under this state with nowel 490 interlocking and cover above it.Be embedded in the top box 510 on the nowel 490, can pin and the chimeric operation of cam 440 that becomes the come-up states of operation of cam mounting column 494, suppresses axial becoming flexible.

The connecting rod 540 of attended operation cam 440 and securing rod 410 is " ヨ " font as shown in figure 18, and arrange along the outside of nowel 490 and top box 510, connecting hole 541a on the head of the sheet 541 of downside rotatably is fastened on the projection (omitting among the figure) of nowel 490 bottom surfaces (outside), the sheet 542 of centre is engaged the snap fit tabs 543 of head by the window of formation between nowel 490 and the top box 510 with the connecting rod connecting hole 441b of described operation of cam 440, securing rod 410 is fastened in the oval connecting hole 544a of sheet 544 heads of upside.

Securing rod 410 engages the snap fit tabs 411 of base end part as shown in figure 19 with the connecting hole 544a of described connecting rod 540, head inserts in the connecting hole 21a of lid 21, advances and retreat with extracting.When being in cover lock in 21 the connecting hole 21a and decide state power failure takes place and can not remove the cover lock timing when head inserts cover, the groove 412 of Xing Chenging is used for stirring securing rod 410 heart-shaped cam 480 being moved towards the latch-release position by inserting straight screwdriver etc. midway, and decides under the state at front control plate 10 and cover in the gap between 21 at cover lock.

So but the lid lock device 23 of structure covers 21 when being in open mode unlocking to make, as Fig. 8 and shown in Figure 9, being returned spring 470 application of forces by trigger switch 450 passes in and out, make operation of cam 440 rotational angle along clockwise direction, thereby the intermediate 442 of pulling connecting rod 540 retreats securing rod 410 and extracts out from cover 21 connecting hole 21a, and control is in open state with electric terminal 430.

When locking cover 21 can not be opened it, as Figure 10 and shown in Figure 11, by solenoid 461 energisings to solenoid 460, make stator core 462 and plunger 463 interim excitations and attract plunger 463, and retreat and become the state that operation of cam 440 is rotated in the counterclockwise direction by making trigger switch 450 overcome return spring 470, the intermediate 542 of releasing connecting rod 540 makes rotation, advance to insert and cover in 21 the connecting hole 21a thereby drive securing rod 410, the contact strip 431 that promotes to control with electric terminal 430 becomes closure state.When trigger switch 450 retreats, then heart-shaped cam 480 moves to keep engagement pin 451 at this going-back position, decides state even 461 outages of the solenoid of solenoid 460 also can be kept cover lock.

When removing this cover lock regularly, then switch on to attract plunger 463 to the solenoid 461 of solenoid 460 temporarily, thereby attract trigger switch to move, heart-shaped cam 480 moves to the position that allows engagement pin 451 to advance like this, thereby as Fig. 8, shown in Figure 9, trigger switch 450 is moved progressive position to by return spring 470 and securing rod 410 is retreated to extract out from cover 21 connecting hole 21a.

Under cover lock is decided state, when making 2 rotations of washing and dewatering groove and the whirling amount of washing and dewatering groove 2 increases in washing or dehydration, then whirling should move bar 420 and rotate and rotate contact strip action bars 530 as shown in Figure 12 and Figure 13, control is retreated with the contact strip 432 of electric terminal 430, will control with electric terminal 430 and be set as open state.

In sum, the present invention makes securing rod utilize solenoidal plunger to overcome return spring and moves to and cover the position that engages and remain on this position by heart-shaped cam, can reduce solenoidal power consumption like this, can obtain the lid lock device of miniaturization.

Can be by confirming that with electric terminal cover lock decides state with the control of securing rod interlock.In addition, after the solenoid outage, can detect the state of the certain non-locking of lid with electric terminal by confirming control.

After the solenoid outage, by confirming that lid opens and closes sense switch and control can detect the locked really and running control of dewatering of lid with electric terminal.

Claims

1. washing machine has:

Be located at the washing and dewatering groove in the housing; The clothing class dispensing port of this washing and dewatering groove top opening; Open and close the lid of this clothing class dispensing port; Engage the securing rod that this lid can not be opened with this lid, this securing rod is operated by solenoidal plunger, it is characterized in that,

Make described securing rod utilize described plunger to overcome return spring and move to the position that engages with described lid, and keep by heart-shaped cam in this position.

2. washing machine according to claim 1 is characterized in that, is embedded with trigger switch in described plunger head, by with the operation of cam of this trigger switch interlock described securing rod and control being operated with electric terminal.

3. washing machine according to claim 2, it is characterized in that, described operation of cam is triangular in shape, portion is provided with the trigger switch connecting hole that engages with described trigger switch in the central, and be provided with the installing hole that this operation of cam is engaged with pillar in 1 bight, be provided with connecting rod connecting hole and contact strip operating portion in other two bights.

4. washing machine according to claim 3, it is characterized in that, the connecting rod that connects described operation of cam and described securing rod is similar to the outside that is " ヨ " font and is configured in case, the connecting hole of hypopleurite head is engaged freely with the projection rotation in the nowel outside, intermediate makes the snap fit tabs of its head engage with the connecting rod connecting hole of described operation of cam by the window that forms between nowel and the top box, the described securing rod of engaging in the connecting hole of epipleurite head.

5. washing machine according to claim 2 is characterized in that, described control is arranged to parallel with plunger advance and retreat direction with the contact strip of electric terminal.

6. washing machine according to claim 5, it is characterized in that, the contact strip that described control has pair of opposing and often opens with electric terminal, make junction closure by push a contact strip with described operation of cam, another contact strip is retreated make contact open by should move contact strip action bars that bar links by the whirling that should move with washing and dewatering groove whirling.

7. washing machine according to claim 1, it is characterized in that, be embedded with trigger switch in described plunger head, by described securing rod and control being operated with electric terminal, and utilize the return spring on the rotating shaft that is installed in described operation of cam and described trigger switch is applied the plunger return force with the operation of cam of this trigger switch interlock.

8. washing machine according to claim 7 is characterized in that, described return spring engages with trigger switch on being inlaid in plunger head.

9. washing machine according to claim 1 is characterized in that, is embedded with trigger switch in described plunger head, and the engagement pin that contacts with heart-shaped cam is installed on this trigger switch, gives the butt power that this engagement pin acts on heart-shaped cam by the pushing spring.

10. washing machine according to claim 9 is characterized in that, described trigger switch has with the plunger slippage and prevents that slippage that the hole engages from preventing with projection, and the engagement pin installing hole extends to described slippage always and prevents inboard with projection.

11. washing machine according to claim 1, it is characterized in that, be embedded with trigger switch in described plunger head, by described securing rod and control being operated with electric terminal with the action bars of this trigger switch interlock, by the return spring that is installed on the operation of cam mounting column that makes described operation of cam rotation engaging freely described trigger switch is applied the plunger return force, and described operation of cam applied suppress the loosening of this operation of cam along the axial power of operation of cam mounting column.

12. according to each described washing machine among the claim 2-11, it is characterized in that, be provided with the guiding rib that the guiding trigger switch slides.

13., it is characterized in that according to each described washing machine among the claim 1-12, be provided with and detect lid cover open and-shut mode and open and close sense switch, be in closure state and solenoid switched on and securing rod is operated by detecting lid.