KR100386792B1 - Electric Washer - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric washer having a small cover lock device with low power consumption of the solenoid. The present invention provides a combined laundry dehydration tank installed in an outer frame, a clothes inlet opening upwardly of the combined laundry dehydration tank, a cover for opening and closing the clothes inlet, and a lock which is coupled to the cover to prevent opening operation of the cover. An electric washer having a lever, wherein the lock lever is operated by a plunger of a solenoid, wherein the lock lever is moved against the return spring at a position engaged with the lid by the plunger, and the heart is positioned at the position. It is characterized by holding by a cam.

Description

Electric Washer

The present invention relates to an electric washing machine having a cover lock device.

In the conventional sunshine type fully automatic electric washing machine in which an outer tub is provided in the outer frame and a washing / dehydration tank having a stirring vane in the center is provided in the outer tub, the clothes inlet formed on the upper cover installed on the upper part of the outer frame is It is comprised so that it can be opened and closed by a cover. The cover is provided with a cover opening / closing detection switch for rotating driving the washing / dehydrating tank in a closed state in order to ensure safety during rotation of the washing / dehydrating tank, and to prevent the lid from being opened during rotation. The cover lock apparatus is provided.

The cover lock device is configured to lock (lock) so as not to open the cover directly or indirectly by the plunger of the solenoid, and the power consumption is increased because the cover is configured to continue energizing the solenoid to the electromagnetic coil. As it is uneconomical and the amount of heat generated by energization increases, a heat dissipation structure for suppressing the temperature rise is required, and there is a problem of increasing complexity and size.

One object of the present invention is to provide an electric washer having a cover lock device which is reduced in size by reducing the power consumption of the solenoid.

Another object of the present invention is to provide an electric washing machine having a lid lock device which can confirm that the lid is locked.

Another object of the present invention is to provide an electric washing machine provided with a lid lock device capable of detecting that the lid is not reliably locked.

Another object of the present invention is to provide an electric washer having a lid lock device capable of detecting that the lid is securely locked and performing dehydration operation control.

In order to achieve the above object, the present invention is a combined laundry dehydration tank installed in the outer frame, a clothes inlet opening to the upper side of the combined laundry dehydration tank, a cover for opening and closing the clothes inlet, coupled to the cover of the cover An electric washer having a lock lever for disabling the opening operation, wherein the lock lever is operated by a plunger of a solenoid, the lock lever being opposed to a return spring in a position where the lock lever is engaged with the lid by the plunger. It is moved so that it may be hold | maintained by the heart cam in the said position.

Another feature of the present invention is that the lock lever and the control electrical contact are operated by inserting and attaching an actuator to the distal end of the plunger and by an operation cam that interlocks with the actuator.

Another feature of the present invention is to insert and attach the actuator to the distal end of the plunger, and to operate the lock lever and the control electrical contact by an operation cam that interlocks with the operator, and at the same time, to return to the rotating shaft of the operation cam. It is to provide a plunger return force to the said actuator by a spring.

According to the present invention, since the lock lever is moved by the solenoid plunger to the position where the cover spring is engaged with the cover opposite to the return spring, the lock lever is held at the position by the heart cam, so that the power consumption of the solenoid can be reduced to provide a compact cover lock device. Can be.

Further, according to the present invention, it can be confirmed that the cover is locked by the control electrical contact that interlocks with the lock lever. In addition, when the solenoid is removed, it is possible to detect that the lid is not reliably locked by checking the control electrical contact.

According to the present invention, when the solenoid is removed, the lid opening / closing detection switch and the control electrical contact can be confirmed to detect that the lid is securely locked and dehydration operation control can be performed.

1 is an external perspective view of an electric washing machine showing an embodiment of the present invention.

FIG. 2 is a longitudinal side view of the electric washing machine shown in FIG. 1; FIG.

3 is a partial cross-sectional plan view of a lid lock device in the electric washing machine shown in FIG.

4A and 4B are longitudinal side views showing the lid lock release state in the electric washing machine shown in Fig. 1, Fig. 4A is a longitudinal side view of the lid lock device portion, and Fig. 4B is a longitudinal side view of the lid open / close detection switch portion.

Fig. 5 is a longitudinal side view of the lid lock device section showing the lid lock state in the electric washing machine shown in Fig. 1;

Fig. 6 is a block diagram of an input part, a display part, a main control device, a cover opening / closing detection switch and a cover lock device in the electric washing machine shown in Fig. 1;

FIG. 7 is a flowchart of a cover lock and lock release control process executed by the main control device in the electric washing machine shown in FIG. 1; FIG.

Fig. 8 is a longitudinal side view showing the unlock state of the lid lock device in the electric washing machine shown in Fig. 1;

FIG. 9 is a transverse plan view of the lid lock device shown in FIG. 8; FIG.

Fig. 10 is a longitudinal side view showing the locked state of the lid lock device in the electric washing machine shown in Fig. 1;

FIG. 11 is a transverse plan view of the lid lock device shown in FIG. 10; FIG.

FIG. 12 is a longitudinal side view showing a swing motion detection state of the lid lock device in the electric washing machine shown in FIG. 1; FIG.

FIG. 13 is a transverse plan view of the lid lock device shown in FIG. 12; FIG.

14A and 14B show a contact piece operating lever of the lid lock device in one embodiment of the present invention, where FIG. 14A is a plan view and FIG. 14B is a side view.

15A and 15B show a heart cam of the lid lock device in one embodiment of the present invention, in which Fig. 15A is a plan view and Fig. 15B is a longitudinal side view.

16A to 16D show the operator of the lid lock device in one embodiment of the present invention, in which Fig. 16A is a plan view, Fig. 16B is a front view, Fig. 16C is a longitudinal side view, and Fig. 16D is a longitudinal front view.

17A and 17B show an operation cam of the lid lock device in one embodiment of the present invention, in which Fig. 17A is a plan view and Fig. 17B is a side view.

18A and 18B show a connecting lever of the lid lock device in one embodiment of the present invention, in which Fig. 18A is a plan view and Fig. 18B is a longitudinal side view.

19A and 19B show a lock lever of the lid lock apparatus in one embodiment of the present invention, where FIG. 19A is a plan view and FIG. 19B is a side view.

<Explanation of symbols for main parts of drawing>

2: combined washing and dehydration tank

3: fluid balancer

23: cover lock device

26: air tube

460: solenoid

480: Heart Cam

463: Plunger

1 is an external perspective view of an electric washing machine showing an embodiment of the present invention, and FIG. 2 is a longitudinal side view of the electric washing machine.

In the drawings, reference numeral 1 denotes a frame that encompasses the periphery of the internal mechanism. Reference numeral 2 is a combined washing and dehydration tank, and has a fluid balancer 3 at its upper edge and a stirring blade 4 rotatably inside the bottom. Reference numeral 5 is an outer tub to rotatably enclose the combined washing / dehydration tank 2, and on the outer side of the bottom, an electric drive device 6 is attached via a steel plate attachment base 7, and an outer frame Suspension support is carried out by the dustproof support device 8 from the upper four corners of (1).

The upper cover 9 provided with the clothing input opening 9a is fitted in the corner of the opening end so as to cover the upper opening of the frame 1, and attached together with the front panel 10 and the back panel 11 to attach the screws (not shown). To the frame 1).

The front panel box 12 formed between the upper cover 9 and the front panel 10 includes an input unit (switch group) 13 including a power switch, a display unit (display element group) 14, and an outer tub 5. The water level sensor 15 and the main control device 16 which generate the water level signal according to the water level in the inside are embedded.

In the rear panel box 17 formed between the upper cover 9 and the rear panel 11, the water supply side is connected to the tap connection port 18, and the softening water outlet side is opposed to the water injection unit 19. The water supply device 20 is incorporated. The rear panel box 17 also includes a wash water feed power supply valve (not shown) and a softener input feed water solenoid valve (not shown).

The clothes input opening 9a formed in the upper cover 9 is configured to be covered by the cover 21 so that the cover 21 can be opened and closed, and the cover opening / closing detection switch 22 for detecting the opening and closing of the cover 21 (see Fig. 3). ) And a lid locking device 23 for locking the lid 21 in an unopenable manner. The detailed structure of this cover lock apparatus 23 is mentioned later.

The drain port 5a formed at the bottom of the outer tub 5 is connected to the drain hose 25 via the drain solenoid valve 24, and the air trap 5b is connected to the water level sensor 15 via the air tube 26. Connect to

The lower edge of the frame 1 is mounted with a synthetic resin base 28 having legs 27 attached to four corners.

In addition, the electric drive device 6 is a power control circuit which is covered with a cover 29 to be waterproof, and controls electric power feeding of the electric drive device 6 to the electric motor according to the instruction from the main control device 16. The auxiliary control device 30 is installed on the base 28.

In this embodiment, although the control apparatus was divided into the main control apparatus 16 and the auxiliary control apparatus 30, it can also be comprised as one control apparatus which combined them.

3 to 5 show an installation state and an operating state of the cover opening / closing detection switch 22 and the cover locking device 23.

The cover opening / closing detection switch 22 is placed in a case 22a made of resin (ABS) and is permanently attached to the front edge of the cover 21 by ultrasonic welding, and the permanent magnet 22b is mounted on a substrate to the case 22c made of resin. And a hole IC 22d attached to the front panel 10 to face the permanent magnet 22b after screwing in and waterproofing by the potting process. The magnetic flux generated by the permanent magnet 22b is transferred to the hall IC 22d. Is a configuration for judging the position (open / closed state) of the lid 21 by detecting with. The hall IC 22d receives a lot of magnetic flux by facing the magnetic pole of the permanent magnet 22b with the lid 21 completely closed, and receives a large magnetic flux when the lid 21 is moved to open, thereby reducing the face-to-face relation with the magnetic pole. The state in which the lid 21 is opened and closed is detected by changing the amount of magnetic flux into an electric signal and determining the magnitude of the electric signal.

The cover lock device 23 is attached to the upper cover 9, and forms the lock lever 410 which advances and retreats from the lock lever advance window 10a formed in the front panel 10 in the front edge of the cover 21. The insertion and withdrawal into one of the engaging holes 21a allows the locking and unlocking of the opening and closing operation of the lid 21 to be performed. That is, as shown in Fig. 4, the lock is released to be opened by removing the lock lever 410 from the engaging hole 21a of the lid 21 closed to cover the clothes inlet 9a, and as shown in Fig. 5. It is a structure which locks so that it cannot be opened by inserting as described above.

In addition, the lid lock device 23 includes a control electrical contact (to be described later) that detects that the lock lever 410 is inserted into the engaging hole 21a and the lid 21 is in the locked state, and the outer tub 5 A pivoting motion lever that vertically descends to the outside of the outer tub 5 to detect that the swing momentum of the combined washing and dehydration tank 2 is excessive due to unbalance of the laundry during dehydration by operating in response to the shaking and operating the control electrical contact. 420.

6 is a block diagram of the input unit 13, the display unit 14, the main control device 16, the cover open / close detection switch 22, and the cover lock device 23 in this electric washing machine.

The main control device 16 mainly comprises the microcomputer 16a and the memory 16b, inputs signals from the input unit 13, the cover opening / closing detection switch 22 and the control electrical contact 430, The washing and dewatering operation control is executed in accordance with the control processing program stored in the memory 16b.

The retraction operation of the lock lever 410 is performed by the solenoid 460, the return spring 470, and the heart cam 480 via the operation lever (to be described later), the operation cam 440, and the operator 450.

The solenoid 460 is configured to excite the stator iron core 462 and the plunger 463 by the electromagnetic coil 461 to suck (retract) the plunger 463 toward the stator iron core side. Reference numeral 464 is a yoke. An operator 450 is fitted to the front end of the plunger 463.

The operator 450 presses the plunger 463 in the direction of always advancing by the return spring 470, engages with the heart cam 480 to maintain or release the retracted position of the plunger 463, Coupled to the operation cam 440 transfers the advance and retract operation of the plunger 463 to the operation cam 440 to emboss the operation cam 440.

The operation cam 440 is coupled to the lock lever 410 via the connecting lever to convert the rotational movement of the operation cam 440 into the forward and backward movement of the lock lever 410, and is attracted to the plunger 463 by the lock lever ( In the state where the 410 is advanced to be inserted into the coupling hole 21a of the lid 21, the contact electrical contact 431 of the control electrical contact 430 of the opening is always suppressed and brought into contact with the contact electrical contact 432 to control the electrical contact. 430 is in a closed state, and in a state in which the lock lever 410 is removed by the return spring 470 to be removed from the engaging hole 21a of the cover 21, the electrical contact 430 for controlling the opening is always present. The control electrical contact 430 is opened apart from the contact piece 431 and at the same time, the contact piece 431 is not subjected to reaction force.

The contact piece 432 of the control electrical contact 430 retreats when the swinging motion response lever 420 reacts to the vibration of the outer tub 5 to move away from the contact piece 431 to open the control electrical contact 430. It is in a state.

Here, the control processing of the lid lock and the unlocking by the main control device 16 will be described with reference to FIG.

When the main control device 16 rotates the washing / dehydration tank 2 for washing or dewatering, first, a detection signal showing that the lid 21 is closed from the lid opening / closing detection switch 22 is output. Then, by pressing the electromagnetic coil 461 of the solenoid 460 to attract the plunger 463, the lock lever 410 is advanced to be inserted into the engaging hole 21a of the lid 21, and the lid 21 ) Is unlocked. Thereafter, the electromagnetic coil 461 of the solenoid 460 is removed, but the position of the sucked plunger 463 is maintained by the heart cam 480. This cover lock state can be confirmed by making a logic judgment of the signals from the cover open / close detection switch 22 and the control electrical contact 430. When it cannot lock, it tries again to pressurize the electromagnetic coil 461, and when it cannot lock by executing 3 times, it makes an error.

Then, after confirming that the lid 21 is locked in the closed state, the main control device 16 moves to the desired washing or dewatering process.

When releasing the lock of the lid 21 and making it openable, the main control device 16 refers to the rotational speed signal from a rotation sensor (not shown) incorporated in the electric drive device 6, or electric drive After the device 6 is removed, the elapsed time is measured, and after the rotation of the washing / dehydrating tank 2 stops, the electromagnetic coil 461 of the solenoid 460 is temporarily pressed to suck the plunger 463. The heart cam 480 is moved to the retracted position holding release state, the operation cam 440 is embossed clockwise by the elasticity of the return spring 470 to retract the lock lever 410, and the cover 21 is engaged. By removing from the hole 21a, the said lid 21 is made into the unlocked state. This lock release state can be confirmed by opening the control electrical contact 430. When the lock cannot be released, the electromagnetic coil 461 is again pressed to attempt to release the lock. If the lock cannot be released three times, an error is generated.

The error state in the cover lock and the cover lock release is released by the pause switch provided in the input unit 13, and is restarted by restart.

If an unbalance occurs in the laundry in the combined laundry dehydration tank 2 during the rotation of the combined laundry dehydration tank 2 in the washing and dehydration step, the combined laundry dewatering tank 2 is pivoted. As the turning momentum increases, the outer tub 5 is greatly shaken to contact the turning motion responding lever 420 to emboss the turning motion responding lever 420, and the contact piece 432 is retracted to control the electrical contact 430. Open. The main control device 16 monitors the opening and closing of the control electrical contact 430 at the time of rotation of the washing / dehydration tank 2 in the washing and dewatering process, and the washing is performed when the control electrical contact 430 is opened. Control processing necessary for suppressing the turning motion of the combined use dehydration tank 2 is executed.

When the main control device 16 rotates the washing / dehydration tank 2 basically, the control unit 16 locks the cover 21 in advance so that it cannot be opened, and releases the lock after the rotation stops so that the main control device 16 can be opened. However, in the process of supplying water while rotating the washing / dehydrating tank 2 at a low speed, the lock is put in a unlocked state in order to enable further addition of laundry.

In addition, in order to avoid the danger of children's mischief, when pressing and holding a specific switch (for example, a washing switch) for a long time (3 seconds) in the input unit 13, the cover 21 is removed in all processes of washing and dehydration. Add a child lock function that locks unopened. This child lock is released by continuously pressing a specific switch (for example, a washing switch) for a long time (3 seconds).

Next, a specific configuration and operation of the lid lock device 23 will be described with reference to Figs.

The cover lock device 23 is mainly assembled with the lower case 490 having the upper side opened, and then attached by attaching the upper case 510 to cover the upper side of the lower case 490.

The lower case 490 is constituted by resin (glass fiber-containing polypropylene) molding, and the coupling shaft 421 of the swing motion response lever 420 is provided on the swing motion swing lever attachment protrusion 491 protruding from the bottom (outer side). ) Is rotatably combined to vertically lower. The swing motion response lever is provided by interposing a helical compression spring 520 between the spring support seat 492 formed on the bottom surface of the lower case 490 and the spring support seat 422 formed by the swing motion response lever 420. The posture of 420 is pressed to a predetermined reference state.

Moreover, the contact piece operation lever 530 which presses and rotates to the said rotational motion reaction lever 420 on the bottom face (outside) of this lower case 490, and retracts the contact piece 432 of the control electrical contact 430. ) Is rotatably attached. As shown in Fig. 14, the contact piece operation lever 530 is formed in an approximately L shape, and is rotatably attached to the projection formed on the bottom wall of the lower case 490 in the coupling hole 531 formed in the bent portion. By engaging, one leg portion 532 is opposed to the pivoting motion lever 420 and the other leg portion 533 is attached to face the contact piece 432 of the control electrical contact 430.

Inside the lower case 490, the solenoid 460, the return spring 470, and the heart cam with the actuator 450 fitted to the control electrical contact 430, the operation cam 440, and the plunger 463 attached thereto. Install 480. The opposing contact pieces 431 and 432 of the control electrical contact 430 are installed so as to be parallel to the advancing direction of the plunger 463 horizontally between the solenoid 460 and the heart cam 480 to support miniaturization.

The heart cam 480 is installed on the bottom (inner side) of the lower case 490 so as to be slidably movable in a direction perpendicular to the advance direction of the operator 450. As shown in Fig. 15, the heart cam 480 has an engaging groove 482 having a different depth of bottom surface around the heart-shaped protrusion 481, and is engaged with the engaging groove 482. When the engagement pin 451 of the ruler 450 moves forward and backward (up and down in the drawing), the direction perpendicular to the advance direction of the engagement pin 451 due to the component force received by the inclination of the bottom of the engagement groove 482. It moves to (left-right direction in drawing), and is a structure which hangs the engagement pin 451 in the recessed side part of the projection 481. As shown in FIG. In Fig. 15A, the number in the coupling groove 482 shows the height of the bottom surface of the coupling groove 482. As shown in Figs.

A solenoid 460 attached to the top of the heart cam 480 by inserting the actuator 450 at the tip of the plunger 463 is installed in the lower case 490 to guide both sides of the operator 450. The guide ribs 493a and 493b guide the sliding movement to stabilize the retreat movement, and the coupling pin 451 downwardly mounted on the operator 450 is coupled to the coupling groove 482 of the heart cam 480. .

As shown in Fig. 16, the operator 450 forms a plunger fitting space for fitting the tip of the plunger 463 inside the side walls 453a and 453b protruding from the hooking hooks 452a and 452b. The plunger fall prevention protrusion 454 stands on the upper surface of the bottom wall of this space. On the lower surface of the bottom wall, a coupling pin attachment portion 456 for mounting the coupling pin 451 concentrically with the release preventing protrusion 454 is provided, and the coupling pin attachment hole 456a in the inner side thereof is provided. Deeply formed so as to extend to the inside of the fall prevention projections (454). On the upper surface of the upper wall of the plunger fitting space, an operating cam engaging projection 457 for engaging the operating cam 440 is provided, and a return spring engaging projection 458 having an engaging groove 458a is provided at the front end. .

The engagement of the actuator 450 and the plunger 463 is horizontal after the tip of the plunger 463 is inserted obliquely upward in the plunger fitting space between the side walls 453a and 453b of the operator 450. The plunger 463 is pulled into the side walls 453a and 453b and the catching hooks 452a and 452b by rotating in the direction thereof, and is inserted into the anti-separation hole 463a so as to fit into the anti-separation protrusion 454a. In addition, the pressure pin 451 is inserted into the coupling pin attachment hole 456a so as to insert the coupling pin 451.

First of all, the return spring 470 is fitted to the post 449 with the operation cams standing up on the bottom inner side of the lower case 490, and one end thereof is hooked to the locking groove 490a of the lower case 490, and the other end is attached. By engaging the engaging groove 458a of the return spring engaging projection 458 provided at the tip of the actuator 450, the actuator 450 is pushed forward (to pull out the plunger 463). The operation cam 440 is rotatably fitted to the operation cam support post 494 thereon. The return spring 470 is formed in the state slightly extended in the axial direction of the prop 489 with an operation cam, and produces the deviation force of the direction which raises the operation cam 440. As shown in FIG.

As shown in Fig. 17, the operation cam 440 uses the cam plate 441 formed in a substantially triangular shape as a base, and engages the operation cam engaging projection 457 of the operator 450 at the center thereof. An operator engagement hole 441a is formed, and one boss portion 442 is formed to form an attachment hole 442a that is rotatably fitted to the operation cam attachment post 494, and the other two are formed. The connection lever engaging hole 441b and the contact piece operation part 443 are formed in each part, and are comprised.

This operation cam 440 fits and attaches the attachment hole 442a formed in the boss | hub part 442 to the operation cam attachment post 494, and operates the said operator 450 in the operator engagement hole 441a. The cam engagement protrusion 457 is inserted and engaged, and the contact piece operation part 443 opposes the back surface of the contact piece 431 in the control electrical contact 430. Then, in the state where the operation cam 440 is pressed and embossed by the return spring 470, a reaction force opposite to the suction force acting on the plunger 463 when the operator cam is attracted to the plunger 463 of the solenoid 460. In order not to receive, it is separated from the contact piece 431. Moreover, the tip end of the contact piece 431 is bent in the direction away from the operation cam 440. By doing in this way, the elasticity of the return spring 470 can be made small, and the suction force of the solenoid 460 can be made small, and miniaturization can be supported.

The upper case 510 is attached to cover the upper side of the lower case 490 in this state. The upper case 510 fitted to the lower case 490 presses the operation cam 440 fitted in the state of floating on the support 449 with the operation cam, thereby suppressing the rattling in the axial direction.

As shown in Fig. 18, the connection lever 540 connecting the operation cam 440 and the lock lever 410 is formed of a U-shaped member to form the outer side of the lower case 490 and the upper case 510. It arrange | positioned along, and the coupling hole 541a formed in the front-end | tip of the lower piece 541 is rotatably coupled to the protrusion (not shown) formed in the bottom surface (outer side) of the lower case 490, and the intermediate piece 542 is carried out. Through the window formed between the lower case 490 and the upper case 510, the engaging projection 543 of the front end is coupled to the connecting lever engaging hole 441b of the operation cam 440, the upper piece 544 The lock lever 410 is coupled to the elliptical coupling hole 544a formed at the tip of the lock.

As shown in Fig. 19, the lock lever 410 engages the engaging projection 411 formed at the proximal end with the engaging hole 544a of the connecting lever 540, and the distal end thereof is the engaging hole of the cover 21. It advances so that insertion and withdrawal may be carried out at 21a. The groove 412 formed in the middle is inserted into the engaging hole 21a of the lid 21, and when the lid is locked, the electrostatic force is removed so that the lid can not be released. The heart cam 480 is moved to the unlocked position by moving the 410, and is positioned in the gap between the front panel 10 and the cover 21 in the state of the cover lock.

In the cover lock device 23 configured as described above, when the cover 21 is unlocked in an openable state, as shown in FIGS. 8 and 9, the operator 450 is pressed against the return spring 470 to operate. By turning the cam 440 in the clockwise direction, the intermediate piece 442 of the connecting lever 540 is pulled in, and the lock lever 410 is retracted to remove it from the engaging hole 21a of the lid 21. Thus, the control electrical contact 430 is opened.

Subsequently, when the cover 21 is locked in an unopenable state, as shown in FIGS. 10 and 11, the electromagnetic coil 461 of the solenoid 460 is pressed to hold the stator iron core 462 and the plunger 463. By temporarily exciting and sucking the plunger 463, the operator 450 is retracted against the return spring 470 so that the operating cam 440 is embossed in the counterclockwise direction, so that the connection lever 540 By extruding and embossing the intermediate piece 542, the lock lever 410 is advanced to be inserted into the engaging hole 21a of the cover 21, and the contact piece 431 of the control electrical contact 430 is pressed to bring it into a closed state. . When the operator 450 retracts, the heart cam 480 moves to keep the coupling pin 451 in the retracted position, so that the cover lock state can be maintained even if the electromagnetic coil 461 of the solenoid 460 is removed. .

When the cover lock is released, the operator 450 is pulled out and moved by temporarily pressing the electromagnetic coil 461 of the solenoid 460 to suck the plunger 463, whereby the heart cam 480 is moved. The engagement pin 451 moves to a position that allows for advancement, whereby the operator 450 is drawn out to the forward position by the return spring 470 as shown in FIGS. 8 and 9 to lock lever 410. Is retracted so as to be removed from the engaging hole 21a of the lid 21.

Then, when the turning movement amount of the washing combined use dehydration tank 2 becomes large during the washing and dewatering process by rotating the washing combined use dehydration tank 2 in the lid lock state, as shown in FIGS. 12 and 13, the turning movement The swing lever 420 rotates the contact piece operation lever 530 to retreat the contact piece 432 of the control electrical contact 430 to bring the control electrical contact 430 into an open state.

As described above, according to the present invention, the lock lever is moved by the plunger of the solenoid to the position where the lock lever engages with the return spring so as to be held by the heart cam at the position, thereby reducing the power consumption of the solenoid and miniaturizing it. One cover lock device can be used.

Further, it can be confirmed that the lid is locked by the control electrical contact that interlocks with the lock lever. In addition, when the solenoid is removed, it is possible to detect that the lid is securely locked by checking the control electrical contact.

Further, when the solenoid is removed, the lid opening / closing detection switch and the control electrical contact can be checked to detect that the lid is securely locked, and dehydration operation control can be performed.

Claims (13)

A laundry dehydration tank installed in the outer frame, a clothes inlet opening above the laundry dehydration tank, a cover for opening and closing the clothes inlet, and a lock lever coupled to the cover to disable the opening operation of the cover. In the electric washer to operate the lock lever by the plunger of the solenoid, And the lock lever is moved by a plunger to a position engaged with the lid, as opposed to a return spring, and held by the heart cam at the position. 2. The electric washing machine according to claim 1, wherein an actuator is inserted into and attached to the distal end of the plunger, and the lock lever and the control electrical contact are operated by an operation cam that interlocks with the operator. The method of claim 2, wherein the operation cam is formed in a substantially triangular shape, at its center forms an operator engaging hole for engaging the operator, and at one of the corners forms an attachment hole for fitting the operation cam to the support, An electric washing machine comprising a connection lever engaging hole and a contact piece operation portion formed at two other corner portions. 4. The connecting lever according to claim 3, wherein the connecting lever connecting the operation cam and the lock lever is formed in a substantially U-shape and disposed outside of the case, and the protrusion formed on the outside of the lower case has a coupling hole formed at the tip of the lower side. Engaged so as to be embossed, the engaging projection of its tip is coupled to the connecting lever engaging hole of the operation cam through a window formed between the lower case and the upper case, and is connected to the tip of the upper piece (member). An electric washer, characterized in that the lock lever is coupled to the formed coupling hole. 3. The electric washing machine according to claim 2, wherein the contact piece of the control electrical contact is provided in parallel with the advancing direction of the plunger. 6. The control electrical contact according to claim 5, wherein the control electrical contact is provided with a pair of always-opened contact pieces that are provided to face each other, and is configured to close the contact by pressing one of the contact pieces with the operation cam. An electric washing machine characterized in that the contact is opened by retracting the other contact piece by a contact piece operation lever interlocked with a swing motion swing lever that responds to the swing motion. 2. A return according to claim 1, wherein an actuator is inserted into the distal end of the plunger, and the lock lever and the control electrical contact are operated by an operation cam that interlocks with the operator, and the return is attached to the rotation shaft of the operation cam. An electric washing machine characterized by providing a plunger return force to the operator by a spring. 8. The electric washing machine according to claim 7, wherein the return spring is coupled to an actuator attached to the tip of the plunger. The method according to claim 1, wherein an actuator is fitted to the distal end of the plunger to attach a coupling pin contacting the heart cam to the operator, and to apply a contact force of the coupling pin to the heart cam by a pressure spring. Electric washer. 10. The electric washing machine according to claim 9, wherein the operator has a release preventing projection for attaching to the release preventing hole of the plunger, and the engagement pin attachment hole is formed to extend to the inside of the release preventing projection. 2. An operation cam according to claim 1, wherein an actuator is fitted to the distal end of the plunger, and the lock cam and the control electrical contact are operated by an operation cam that interlocks with the operator so that the operation cam is rotatably fitted. The plunger return force is imparted to the operator by the return spring attached to the attachment post, and the biasing force is applied to the operation cam in the axial direction of the support cam attachment post so as to suppress rattling of the operation cam. Electric washer. The electric washing machine according to any one of claims 2 to 11, wherein guide ribs for guiding sliding of the operator are provided. 12. The lock lever according to any one of claims 1 to 11, wherein a cover opening / closing detection switch for detecting an open / closed state of the cover is provided, and a lock lever is operated by detecting a state in which the cover is closed to press the solenoid. Electric washing machine.