JP2016000197A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine which can dewater laundry efficiently without generating vibration and noise by eliminating unbalance caused by the laundry in a state where a normal dewatering operation is continued without decelerating or stopping the rotation of a rotary drum in a dewatering operation of a washing machine, and in which power consumption does not increase.SOLUTION: In a washing machine 1, a washing tub 5, three hollow baffles 6 disposed on an inner peripheral surface of the washing tub 5 with a 120-degree interval along an axial direction of the washing tub 5, and a water receiving ring unit 18 configured by superposing annular water guiding gutters 19a, 19b, 19c corresponding to each of the baffles 6 are fixed on an outer surface on an end part in the axial direction of the washing tub 5. Furthermore, nozzles 25a-25c are provided for pouring adjustment water individually to each water guiding gutter, and each water guiding gutter and the corresponding baffle are connected by a water guiding member. When unbalance occurs, water is supplied through the water guiding gutter with respect to the baffle 6 which is effective for eliminating the unbalance.

Description

  The present invention relates to a washing machine having a dehydrating function.

  Some washing machines installed in general households or coin launderettes have a washing and dehydrating function and a washing and dehydrating function.

  In a washing machine having a dehydrating function, vibration and noise are generated in the rotating drum due to the bias of the laundry. Also, if the laundry is uneven, the eccentricity of the rotating drum at the time of rotation increases, and a large torque is required for rotation, so that the dehydration operation cannot be started. In order to solve this problem, the user stopped the operation of the washing machine and solved the unevenness of the laundry manually.

  In order to eliminate such a troublesome work, when it is determined that the unbalance, which is the bias of the laundry, is larger than a predetermined value, the centrifugal force becomes smaller than gravity according to the output timing of the position detecting means. There has been proposed one in which the rotating drum is decelerated until the speed is reached to eliminate the uneven distribution of the laundry (see Patent Document 1).

  In addition, in order to prevent the occurrence of imbalance in which the laundry is biased to the front part of the rotating drum during dehydration, the difference between the detected vibration amounts is calculated by an acceleration sensor disposed on the front and rear parts of the rotating drum. There has been proposed one that detects an unbalanced state in which the laundry is biased toward the front of the rotating drum (Patent Document 2).

JP-A-9-290089 JP 2009-82558 A

  The technique disclosed in Patent Document 1 is such that the centrifugal force is gradually reduced by decelerating the rotation of the rotating drum, and the overlapping laundry is dropped by gravity. However, in this prior art, the laundry that is tangled up with each other and falls into a lump falls as it is, so that this lump cannot be unraveled. When the rotating drum is rotated in such a state, since the unbalance has not been eliminated, the unbalance is detected again, and the rotation of the rotating drum is repeated.

  On the other hand, the technique disclosed in Patent Document 2 calculates the difference between the vibration value detected by the front vibration detection means and the vibration value detected by the rear detection means when the rotating drum rotates. . When the difference between the vibration values exceeds a preset threshold value, the rotation of the rotating drum is decelerated or stopped.

  However, even with this prior art, the laundry that is tangled and lumped together remains undissolved and remains in the rotating drum, which is not a fundamental solution to eliminate imbalance.

  Further, according to Patent Documents 1 and 2, since the rotation of the rotating drum is decelerated or stopped, there is a problem in that starting power is required every time the dehydrating operation is repeated, and power consumption increases.

  These problems may occur not only in a drum type washing machine having a rotating drum (washing tub) but also in a vertical type washing machine.

  The present invention solves this conventional problem. According to the present invention, even if the laundry is unevenly distributed in the washing tub, the unbalance of the washing tub is surely eliminated during the dehydration operation without decelerating or stopping the rotation of the washing tub. It is possible to provide a washing machine capable of efficiently dehydrating laundry by reducing generation and noise generation.

  The present invention relates to a washing tub, a plurality of hollow balancers disposed on an inner peripheral surface of the washing tub along an axial direction of the washing tub, and a plurality of annular water basins corresponding to each of the balancers. A water receiving ring unit configured to be fixed to an axial end of the outer surface of the washing tub, a part of the water conduit, and a water passage member that connects the balancer corresponding to the water conduit; And a nozzle unit that individually injects adjustment water into the water conduit.

  In particular, the present invention is characterized in that the balancer is a baffle that scoops up laundry. Further, the present invention is configured such that the balancer is arranged at equal intervals on the inner peripheral surface of the rotating drum that is a washing tub, and the water basin opens the inner peripheral surface and the outer peripheral surface is bottomed. The bottom plate of the water conduit of each layer of the water receiving ring unit is fixed to be eccentric with respect to the axis of the washing tub and the angular difference between the eccentric directions of adjacent water conduits is the same. The top is provided with the water-permeable member.

  Further, the present invention is characterized in that an inclined plate having a downward gradient from the front end to the rear end located on the main body opening side of the baffle is disposed inside the baffle.

  Further, the present invention is characterized in that the bottom plate has a funnel shape at a position where the water passage member is attached to the bottom plate of the water conduit.

  Moreover, this invention has the said water basin having an annular water basin main body and the bulging part which protrudes radially outward from the water basin main body, The rotation direction delay side of the said washing tub among the said bulging parts A connection opening with the water conduit main body is formed, and the water flow member is connected to the rotation direction leading side.

  Further, the present invention is characterized in that a partition member for narrowing a water storage area inside the balancer in a circumferential direction of the washing tub is provided.

  Moreover, this invention is attached to the axial direction edge part among the outer surfaces of the said washing tub, and has the water storage part connected with either of these balancers.

  Further, the present invention is such that the washing tub is a rotating drum whose axial direction is substantially horizontal, and a water conduit that constitutes the water receiving ring unit opens an inner peripheral surface and the outer peripheral surface is bottomed. The nozzle unit is arranged at a position where water can be supplied toward the water conduit at a lower portion of the water receiving ring unit.

  According to the present invention, in the washing machine, the adjustment water injected into the selected water conduit of the water receiving ring unit that rotates integrally with the washing tub is supplied to the balancer via the water passage member, and the laundry is biased. Since the generated imbalance is eliminated, it is possible to prevent generation of vibration and noise while continuing normal dehydration operation without decelerating or stopping the rotation of the washing tub in the middle.

  In the washing machine of the present invention, since the balancer is a baffle, both the balance adjustment of the washing tub and the function of scooping up the laundry can be obtained.

  In the washing machine of the present invention, since the bottom plate of the water conduit of each layer of the water receiving ring unit is eccentric with respect to the axis of the rotating drum, centrifugal force is generated in the direction of the eccentric top when the water receiving ring unit rotates. In addition, the adjusted water injected into the water conduit can be efficiently supplied to the balancer.

  In the washing machine of the present invention, since the inclined plate from the front end toward the rear end is disposed inside the baffle, the adjustment water can be efficiently drained.

  In the washing machine of the present invention, the attachment portion of the water passage member of the bottom plate of the water conduit of the water receiving ring unit has a funnel shape, so that retention of the adjusted water injected into the water conduit is promoted, and the adjusted water is efficiently balanced. Can be supplied to.

  In the washing machine of the present invention, since the water conduit has the water conduit main body and the bulging portion, the adjustment water in the water conduit main body flows smoothly into the bulging portion through the connection opening, and the water from the bulging portion passes through the water passing member. Therefore, the adjusted water can be efficiently supplied to the balancer.

  In the washing machine of the present invention, since the partition member is disposed, the adjustment water can be collected in a narrow range in the rotation direction of the washing tub in the balancer, and an imbalance caused by the bias of the laundry can be reduced. It can be eliminated in a short time with adjustment water.

  Since the washing machine of the present invention has a water storage part, more adjustment water can be supplied to the vicinity of the washing tub, and a larger imbalance due to the bias of the laundry can be stably eliminated.

  In the drum type washing machine of the present invention, since the nozzle unit is disposed at a position where water can be supplied toward the water conduit at the lower part of the water receiving ring unit, the adjustment water can be gently poured into the water conduit from the nozzle unit. Splash can be suppressed.

It is a front view which shows the external appearance of the washing machine 1 which concerns on 1st Embodiment of this invention. It is a schematic diagram which shows the internal structure of the washing machine 1 of this invention. It is a front perspective view of the rotating drum 5 employ | adopted as the washing machine 1 of this invention. It is a back perspective view of the rotating drum 5 employ | adopted as the washing machine 1 of this invention. It is a side view of the rotating drum 5 employ | adopted as the washing machine 1 of this invention. It is a perspective view of the baffle 6 arrange | positioned at the rotating drum 5 of the washing machine 1 of this invention. It is sectional drawing of the baffle 6 arrange | positioned at the rotating drum 5 of the washing machine 1 of this invention. It is sectional drawing of the water-receiving ring unit 18 arrange | positioned at the rotating drum 5 of the washing machine 1 of this invention. FIG. 9 is an assembled perspective view of the water receiving ring unit 18 of FIG. 8. It is explanatory drawing of the structure of the water-receiving ring unit 18 of FIG. It is explanatory drawing of the assembly state of the water receiving ring unit 18 of FIG. It is explanatory drawing of the nozzle unit 25 which inject | pours adjustment water into the water receiving ring unit 18. FIG. It is an electric system block diagram of the washing machine 1 of this invention. It is explanatory drawing of the unbalanced state of the rotating drum. It is explanatory drawing of the unbalanced state of the rotating drum. It is a flowchart figure which shows the flow of control of the spin-drying | dehydration operation of the washing machine 1 of this invention. It is a schematic diagram which shows the internal structure of the modification which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the modification of the water receiving ring unit 18 which concerns on 1st Embodiment of this invention. FIG. 19 is an assembled perspective view of the water receiving ring unit 18 shown in FIG. 18. It is sectional drawing which shows the modification of the baffle which concerns on 1st Embodiment of this invention. It is a fragmentary perspective view which shows the other modification of the water receiving ring unit which concerns on 1st Embodiment of this invention. It is a back perspective view of rotating drum 5 with which washing machine 50 concerning a 2nd embodiment of the present invention is provided. It is a disassembled perspective view of the water receiving ring unit 69 shown in FIG. It is the cross-sectional perspective view which cut | disconnected the water conduit 68 which comprises the water-receiving ring unit 69 shown in FIG. 23 in the cross section containing the bulging part 68b. 3 is a longitudinal sectional perspective view showing the washing machine 50 cut in the vicinity of the nozzle unit 25. FIG. It is a figure which shows the baffle 6 arrange | positioned in the rotating drum 5 of the washing machine 50. FIG. It is a flowchart which shows the flow of control of the spin-drying | dehydration operation of the washing machine 50 which concerns on 2nd Embodiment. It is a flowchart which shows the flow of control of the spin-drying | dehydration operation of the washing machine 50 which concerns on 2nd Embodiment. It is a figure explaining the flow of control of the spin-drying | dehydration operation of the washing machine. It is a figure which shows the modification of the washing machine 50 which concerns on 2nd embodiment.

<First Embodiment>
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing an appearance of the washing machine 1 according to the first embodiment of the present invention. FIG. 2 is a schematic diagram showing the internal structure of the washing machine 1. FIG. 3 is a front perspective view of the rotating drum 5. FIG. 4 is a rear perspective view of the rotating drum 5. FIG. 5 is a side view of the rotating drum 5.

  A washing machine 1 shown in FIGS. 1 and 2 includes a main body 2, an outer tub 3 included in the main body 2, a door body 4 attached to the main body 2, and a rotating drum 5 included in the outer tub 3. It is a horizontal drum type washing machine configured. On the front surface of the main body 2, an opening 2a for taking in and out the laundry is formed. The opening 2a is provided with a door 4 that can be opened and closed in a closed state and an open state.

  The outer tub 3 shown in FIG. 2 is formed in a substantially bottomed cylindrical shape. Specifically, the outer tub 3 is connected to the disc-shaped bottom portion 3b, the cylindrical side wall portion 3c connected to the outer edge portion of the bottom portion 3b, the annular throttle portion 3d continuous to the side wall portion 3c, and the throttle portion 3d. And a cylindrical opening wall 3e that forms an opening 3a facing the opening 2a of the main body 2. The outer tub 3 has an axis S1 extending in a substantially horizontal direction. The outer tub 3 is arranged so that the opening 3 a faces the opening 2 a of the main body 2.

  A rotating drum 5 is disposed in the internal space of the outer tub 3. The rotating drum 5 is formed in a substantially bottomed cylindrical shape (see FIGS. 3 to 5). Specifically, the rotary drum 5 is connected to a disk-shaped bottom portion 5c, a cylindrical side wall portion 5d that is continuous with the outer edge portion of the bottom portion 5c, an annular throttle portion 5e that is continuous to the side wall portion 5d, and a throttle portion 5e. And a cylindrical opening wall 5f that forms the opening 5a. The axis of the rotating drum 5 coincides with the axis S1 of the outer tub 3. A plurality of through holes 5b penetrating in the thickness direction are formed in the side wall 5d of the rotating drum 5.

  The door body 4 is provided in an opening 2a formed on the front surface of the main body 2 so as to be freely opened and closed. As shown in FIG. 2, when the door body 4 closes the opening 2 a of the main body 2, the convex portion 4 a on the back surface of the door body 4 enters the opening 3 a of the outer tub 3 and the opening 5 a of the rotating drum 5. In this configuration, the laundry in the rotating drum 5 is prevented from jumping out.

  The washing machine 1 further includes a drive unit D and a water receiving ring unit 18. The drive unit D includes a bearing 7 fixed to the bottom 3 b of the outer tub 3, a main shaft 8, a pulley 9, a drum motor 10, and a pulley belt 11. The bearing 7 is provided at the center of the bottom 5 c of the rotating drum 5. One end of the main shaft 8 is fixed to the bottom 5 c of the rotary drum 5, and the other end is fixed to the pulley 9. The bearing 7 rotatably supports the main shaft 8. The axis of the main shaft 8 coincides with the axis S1.

  The drum motor 10 has an output shaft 10a. The pulley belt 11 is stretched between the pulley 9 and the output shaft 10a. The torque of the drum motor 10 is transmitted to the pulley 9 and the main shaft 8 through the pulley belt 11, thereby rotating the rotating drum 5.

  An acceleration sensor 12 that detects acceleration in two directions, horizontal and vertical, is disposed at a position corresponding to the tip of the rotating drum 5 of the outer tub 3. On the other hand, a proximity switch 14 for detecting a sensor mark 13 provided on the pulley 9 is provided. Further, a drain pipe 15 for draining the accumulated dehydrating liquid W to the outside of the main body 2 is connected to the outer tank 3 so that the dehydrating liquid W can be drained to the outside of the main body 2 by opening and closing the electromagnetic valve 16. To do.

  FIG. 6 is a perspective view of the baffle 6 disposed on the rotary drum 5 shown in FIG. FIG. 7 is a cross-sectional view of the baffle 6 disposed on the rotary drum 5 shown in FIG.

  As shown in FIG. 6, the baffle 6 includes a baffle body 6 d, a pipe rod 6 a to which any of water passing members 24 a, 24 b and 24 c shown in FIG. And a pipe rod 6b for draining the adjustment water staying in the tank. Further, as shown in FIG. 3, a plurality of (three in the present embodiment) such baffles 6 extend in parallel in the direction of the axis S1 (see FIG. 2) in the rotary drum 5. The baffle body 6d is formed in a hollow body protruding in a triangular shape from the side wall 5d of the rotating drum 5 toward the axis S1, and scrapes the laundry when the rotating drum 5 is driven to rotate. The baffles 6 are provided at equal intervals in the circumferential direction of the rotating drum 5. In the present embodiment, the baffles 6 are provided with an interval of 120 ° with respect to the circumferential direction of the rotary drum 5.

When the baffle 6 has such a configuration, it is possible to change the weight of the rotating drum 5 by adjusting water at the mounting position of the baffle 6, and as a balancer (balancer) when the laundry is biased during dehydration described later. Can be obtained. Further, in a model that does not include the baffle 6, a long hollow body may be provided on the inner peripheral surface of the rotating drum 5 along the direction of the axis S <b> 1 as in the above configuration. The pipe rod 6b is provided on the rear side of the baffle 6 and on the top side. As a result, the adjusted water staying in the baffle 6 can be drained to the outside of the rotating drum 5.

  Next, the configuration of the water receiving ring unit 18 for supplying adjustment water to the baffle 6 will be described. FIG. 8 is a cross-sectional view of the water receiving ring unit 18 disposed on the rotating drum 5. FIG. 9 is an assembled perspective view of the water receiving ring unit 18 of FIG. FIG. 10 is an explanatory diagram of the structure of the water receiving ring unit 18 of FIG. FIG. 11 is an explanatory view of the assembled state of the water receiving ring unit 18 of FIG.

  The water receiving ring unit 18 is fixed to the back surface of the rotating drum 5 as shown in FIGS. The water receiving ring unit 18 shown in FIG. 8 has a three-layered water conduit 19a (corresponding to the number of baffles 6 disposed on the rotating drum 5) which is annular and has an inner peripheral surface opened and an outer peripheral surface closed with a bottom plate. 19b and 19c are stacked in the direction of the axis S1 (see FIG. 2) of the rotary drum 5.

  The water receiving ring unit 18 is constructed by assembling a panel material as shown in FIG. The water receiving ring unit 18 is integrated in a state where a circular bottom plate 21 having the same shape is sandwiched between circular ring plates 20 having the same shape. Thereby, the three-layer water conduit 19a, 19b, 19c which uses the baseplate 21 as a bottom face and the ring plate 20 as a side wall is formed. In this case, as shown in FIG. 10, the position of each bottom plate 21 is indicated by a chain line, a one-dot chain line, a two-dot chain line, and the bottom plate 21 is eccentric from the center RC of the ring plate 20 by a distance (d). EC.

  Assembling of the ring plate 20 and the bottom plate 21 is performed such that the angular difference in the eccentric direction of the adjacent bottom plates 21 is 120 ° as shown by a chain line, a one-dot chain line, and a two-dot chain line in FIG. And pipe rod 22a, 22b, 22c connected to water flow member 24a, 24b, 24c (refer FIG. 4) is fixed to the eccentric top part of the baseplate 21 located in the outer side edge part of the ring plate 20. As shown in FIG. The water receiving ring unit 18 configured in this manner fixes the center RC of the ring plate 20 so as to coincide with the axis S1 (see FIG. 2) of the rotating drum 5. Thereby, each bottom plate 21 of each water conduit 19a, 19b, 19c becomes the arrangement | positioning eccentrically with an angle difference of 120 degrees centering on the axis line S1 of the rotating drum 5. FIG.

  The pipe rods 22a, 22b, 22c of the water receiving ring unit 18 configured as described above are connected to one end of the water passage members 24a, 24b, 24c as shown in FIG. Connect to rod 6a. In addition, the attachment position to the baffle 6 of the water flow member 24a, 24b, 24c is made to be the bottom part side of the baffle 6. FIG. Thereby, retention in the centrifugal direction of the adjustment water supplied to the baffle 6 can be promoted.

  With such a configuration, when adjustment water is injected into the water conduits 19a, 19b, and 19c by means described later, when the rotation of the water receiving ring unit 18 exceeds a critical rotational speed that generates centrifugal force, The adjustment water injected into the ridges 19a, 19b, 19c flows down toward the pipe rods 22a, 22b, 22c while receiving a load in the centrifugal direction.

  The water receiving ring unit 18 is provided with three water conduits 19a, 19b, 19c and three baffles 6 corresponding to the balancer. And the angle between each eccentric top part in the bottom plate 21 of the water conduit 19a, 19b, 19c centering on the axis S1 of the rotating drum 5, and the angle between the baffles 6 are all set to 120 degrees. . The bottom plate 21 of the water conduits 19a, 19b, 19c is circular as a preferred form of the present embodiment, but may be oval or polygonal including an ellipse as long as the same function is obtained. .

  The adjustment water injected into the water conduits 19a, 19b, 19c of the water receiving ring unit 18 configured as described above flows toward the eccentric top due to the centrifugal force, and the water passing member 24a from the pipe rods 22a, 22b, 22c. , 24b, 24c to be supplied into each baffle 6. The supplied adjustment water stays on the wall surface in the centrifugal direction in the baffle 6. By supplying adjustment water to the baffle 6 in this way, the weight of the baffle 6 can be increased. Therefore, if adjustment water is supplied into the baffle 6 so as to cancel a lump of laundry to be described later, the unbalance of the rotating drum 5 can be eliminated without decelerating or stopping the rotation of the washing tub 5 halfway. Therefore, generation of vibration and noise can be prevented while the normal dehydration operation is continued. Moreover, since the rotation speed of the rotating drum 5 can be raised by this, dehydration operation can be started.

  As the rotation speed of the rotating drum 5 is decreased after the dehydration operation is completed, the centrifugal force in the baffle 6 is gradually attenuated and is not affected, and the adjusted water is loosened in the baffle 6 and drained from the pipe rod 6b by gravity. Is done.

  Next, the nozzle unit 25 for injecting adjustment water into the water conduits 19a, 19b, 19c will be described. FIG. 12 is an explanatory diagram of the nozzle unit 25 that injects adjustment water into the water receiving ring unit 18. As shown in FIG. 12, the nozzle unit 25 includes three nozzles 25a, 25b, and 25c arranged toward the bottom plate 21 of the water conduits 19a, 19b, and 19c. The nozzles 25 a, 25 b, and 25 c are provided to be inclined toward the rotation direction of the water receiving ring unit 18. Therefore, when the adjustment water is injected from each nozzle 25a, 25b, 25c, the adjustment water is injected along the curved surface of the bottom plate 21 of the water conduits 19a, 19b, 19c. Smooth water injection is possible without splashing.

  The adjustment water is tap water supplied to the nozzles 25a, 25b, and 25c via the electromagnetic valves 26a, 26b, and 26c shown in FIG. The electromagnetic valves 26a, 26b, and 26c may be directional switching electromagnetic valves.

  Next, operation control of the washing machine 1 of the present invention will be described. FIG. 13 is an electric system block diagram of the washing machine 1 of the present invention. FIG. 14 is an explanatory diagram of the unbalanced state of the rotating drum 5. FIG. 15 is an explanatory diagram of the unbalanced state of the rotating drum 5. The control unit 30 includes a central control unit (CPU) 31 that controls the entire system. The control unit 31 has a low-speed rotation setting value (N1) before starting the dehydration operation, a high-speed rotation setting value (N2) after the start of the dehydration operation, and an unbalance amount setting value at the time of the low-speed dewatering operation. (M1) A memory 32 storing the unbalance amount setting value (m2) at the time of high-speed dewatering operation is connected.

  The central control unit 31 outputs a control signal to the rotation speed control unit 33 and further outputs the control signal to a motor control unit (motor control circuit) 34 to control the rotation of the drum motor 10. The rotation speed control unit 33 receives a signal indicating the rotation speed of the drum motor 10 from the motor control unit 34 in real time, and serves as a control element. The acceleration sensor 12 is connected to the unbalance amount detection unit 35 and the unbalance position detection unit 36, and the proximity switch 14 is connected to the unbalance position detection unit 36.

  Thereby, when the proximity switch 14 detects the sensor mark 13 (see FIG. 2), the unbalance amount (M) is detected in the unbalance amount detection unit 35 from the magnitude of the acceleration in the horizontal direction and the vertical direction from the acceleration sensor 12. And outputs this unbalance amount to the unbalance amount determination unit 37. On the other hand, the unbalance position detection unit 36 calculates an angle in the unbalance direction from the signal indicating the position of the sensor mark 13 input from the proximity switch 14 and outputs an unbalance position signal to the water injection control unit 38.

  When the water injection control unit 38 receives signals indicating the unbalance amount and the unbalance position from the unbalance amount determination unit 37 and the unbalance position detection unit 36, which baffle 6 in the rotary drum 5 is to be supplied with water. And the amount of water supply is judged based on the control program stored beforehand. Then, the selected electromagnetic valves 26a, 26b, and 26c are opened, and injection of adjusted water is started. When an imbalance occurs in the rotary drum 5, the adjustment water is injected from the nozzle nozzles 25a, 25b, 25c selected based on the calculation of the imbalance amount into the water conduits 19a, 19b, 19c of the water receiving ring unit 18. When the imbalance is resolved by the baffle 6, the adjustment water injection is stopped. As a result, the rotation of the rotating drum 5 is not decelerated, and the generation of vibration and noise can be prevented while the dehydrating operation is continued.

  The determination of the baffle 6 in the water injection control unit 38 is performed, for example, as shown in FIG. 14 in which the laundry lump LD causing unbalance is between the baffle 6 at the position B and the position C of the rotary drum 5. If it is, the adjustment water is supplied to the baffle at position A. Further, as shown in FIG. 15, when the laundry lump LD is in the vicinity of the baffle 6 at the position A, the adjustment water is supplied to the baffles 6 at the position B and the position C.

  Next, the flow of control of the dehydration operation of the washing machine 1 of the present invention will be described below based on the flowchart shown in FIG. FIG. 16 is a flowchart showing the flow of control of the dehydration operation of the washing machine 1 of the present invention.

<Step S1>
In step S1, when the central control unit 31 receives an input signal from a dehydration button (not shown) or a signal indicating that the dehydration process should be started during the washing course operation, the central control unit 31 starts the dehydration process and proceeds to step 2.

<Step S2>
In step S2, the central control unit 31 notifies the rotation speed control unit 33 of a signal indicating that low speed rotation (N1) is to be started. The rotation speed control unit 33 transmits a control signal to the motor control unit 34 based on the notification, and the motor control unit 34 drives the drum motor 10 by supplying a current based on the control signal. Thereby, the rotary drum 5 is rotationally driven at a predetermined number of rotations (100 rpm to 400 rpm in the present embodiment), and the process proceeds to step S3.

<Step S3>
In step S3, the central control unit 31 accesses the unbalance position detection unit 36, and determines whether or not the unbalance position detection unit 36 has received a signal indicating that the sensor mark 13 has been detected from the proximity switch 14. to decide. If the sensor mark 13 is detected, the process proceeds to step S4. If the sensor mark 13 is not detected, step S3 is repeated.

<Step S4>
In step S4, the central control unit 31 accesses the unbalance amount detection unit 35, acquires accelerations in the horizontal direction and the vertical direction given from the acceleration sensor 12, performs a predetermined calculation, and performs an unbalance amount. While calculating M, the unbalance position detection part 36 detects an unbalance position, and it transfers to step S5.

<Step 5>
In step S5, the central control unit 31 compares the unbalance amount M with the unbalance amount setting value (m1) stored in the memory 32, and determines whether M> m1 is satisfied. When M> m1 is satisfied, the process proceeds to step S6, and when M> m1 is not satisfied, the process proceeds to step S7. The unbalance amount setting value (m1) is a predetermined unbalance amount threshold value at which high-speed rotation of the rotary drum 5 can be started. In step S5, the fact that M> m1 does not hold means that the unbalance amount M is a value at which high-speed rotation of the rotary drum 5 can be started. In other words, the fact that M> m1 does not hold means that the imbalance of the rotating drum 5 has been improved or has not existed from the beginning.

<Step S6>
In step S <b> 6, the central control unit 31 transmits a water injection start signal to the water injection control unit 38 and starts water injection of adjusted water into the baffle 6. When the operation in step 6 is the second loop, the electromagnetic valves 26a to 26c opened in the first step 6 are continuously opened.

  Specifically, as a result of detection of the unbalance position, the central control unit 31 determines that the laundry lump LD is located between the baffles 6 as shown in FIG. One of the electromagnetic valves 26a to 26c corresponding to a certain baffle 6 is opened, and water injection to the baffle 6 at a position facing the laundry lump LD is started.

  The central control unit 31 corresponds to a baffle 6 other than the baffle 6 when the laundry lump LD is present in the vicinity of one of the baffles 6 as shown in FIG. Then, the electromagnetic valves 26a to 26c are opened, and water injection to the baffles 6 other than the baffles 6 near the laundry lump LD is started. Then, the process returns to step S3.

<Step S7>
In step S <b> 7, the central control unit notifies the water injection control unit 38 of an instruction to close the electromagnetic valves 26 a to 26 c, and stops the supply of adjusted water to the baffle 6. Thereafter, the process proceeds to step S8. In addition, when not passing through step S6, since electromagnetic valve 26a-26c is already a closed state, it transfers to step S8 as it is.

<Step S8>
In step S8, the central control unit 31 starts high-speed rotation of the rotary drum 5. Specifically, the central control unit 31 notifies the rotation speed control unit 33 of a signal indicating that high-speed rotation should be started. The rotation speed control unit 33 transmits a control signal to the motor control unit 34 based on the notification, and the motor control unit 34 drives the drum motor 10 by supplying a current based on the control signal. As a result, the rotary drum 5 is rotationally driven so as to obtain a high-speed rotational speed (500 rpm to 800 rpm in the present embodiment) that has been preliminarily stored, and the process proceeds to step S9.

<Step S9>
In step S <b> 9, the central control unit 31 accesses the unbalance position detection unit 36 and determines whether or not the proximity switch 14 has detected the sensor mark 13. If it is determined that the proximity switch 14 has detected the sensor mark 13, the process proceeds to step S10. If it is determined that the proximity switch 14 has not detected the sensor mark 13, step S9 is repeated.

<Step S10>
In step S10, the central control unit 31 accesses the unbalance amount detection unit 35, acquires the acceleration in the horizontal direction and the vertical direction given from the acceleration sensor 12, performs a predetermined calculation, and performs the unbalance amount. While calculating M, the unbalance position detection part 36 detects an unbalance position, and it transfers to step S11.

<Step S11>
In step S11, the central control unit 31 compares the unbalance amount M with the unbalance amount setting value (m2) stored in the memory 32, and determines whether or not M> m2. When M> m2 is satisfied, the process proceeds to step S12, and when M> m2 is not satisfied, the process proceeds to step S13.

  The unbalance amount setting value (m2) is a predetermined unbalance amount threshold value that does not cause a problem even if the rotational speed of the rotary drum 5 is increased to a predetermined high speed. The fact that M> m2 does not hold in step S11 means that the unbalance amount M is a value that can rotate the rotating drum 5 at a high speed. In other words, the fact that M> m2 does not hold means that the unbalance of the rotating drum 5 has been improved so that it can be rotated at a high speed, or that there has been no unbalance that could hinder high-speed rotation from the beginning. means.

<Step S12>
In step S <b> 12, the central control unit 31 transmits a water injection start signal to the water injection control unit 38 and starts water injection of adjusted water into the baffle 6. When the operation of step 12 is the second loop, the electromagnetic valves 26a to 26c opened in the first step 12 are continuously opened.

  Specifically, the central control unit 31 determines that when the result of detection of the unbalance position in step S10 is between the baffles 6 as shown in FIG. One of the electromagnetic valves 26a to 26c corresponding to the baffle 6 at the facing position is opened, and water injection to the baffle 6 at the position facing the laundry lump LD is started.

  The central control unit 31 determines that the unbalanced position detection result in step S10 is a baffle other than the baffle 6 when the laundry lump LD exists in the vicinity of one of the baffles 6 as shown in FIG. The electromagnetic valves 26a to 26c corresponding to 6 are opened, and water injection to the baffles 6 other than the baffles 6 in the vicinity of the laundry lump LD is started. Then, the process returns to step S9.

<Step S13>
In step S <b> 13, the central control unit 31 notifies the water injection control unit 38 of an instruction to close the electromagnetic valves 26 a to 26 c, and stops the supply of adjusted water to the baffle 6. Thereafter, the process proceeds to step S14. In addition, when not passing through step S12, since electromagnetic valve 26a-26c is already a closed state, it transfers to step S8 as it is.

<Step S14>
In step S14, the central control unit 13 accesses a clock unit (not shown), and determines whether or not the elapsed time since the rotating drum 5 reaches a predetermined high speed has exceeded a predetermined setting time for the dehydration operation. To do. If the elapsed time exceeds the set time for the dehydration operation, the process proceeds to step S15. If the elapsed time does not exceed the set time for the dehydration operation, the process returns to step 9.

<Step 15>
In step 15, a signal indicating that the dehydration operation should be terminated is notified to the rotation speed control unit, and the rotation drive of the drum motor 10 is stopped. In this way, the dehydration operation is terminated.

  In the process of completing the dehydration operation in this way, all the adjustment water in the baffle 6 supplied along with the gentle rotation until the rotation of the rotating drum 5 is stopped can be discharged to the outside and returned to the initial state. Accurate control can be repeated.

  According to the flow of the dehydration operation described above, since the unbalanced state of the rotating drum 5 is detected at two stages of low speed rotation and high speed rotation and the unbalanced state is canceled, from the start to the end of the dewatering operation. It can be set as the washing machine 1 which can prevent generation | occurrence | production of a vibration and noise in any process.

  Although the first embodiment of the present invention has been described above, the configuration of the first embodiment is not limited to the above-described configuration, and various modifications can be made. For example, FIG. 17 is a schematic diagram showing the internal structure of a modification of the first embodiment of the present invention. As shown in FIG. 17, the branch pipe 116 is branched from the drain pipe 15 and the outer tank is pumped by the pump 17. The dehydrating liquid W staying at the bottom of 3 may be recovered and reused as adjustment water, thereby improving the economy. That is, the dehydrating liquid W pumped by the pump 17 may be supplied as adjustment water to the nozzles 25a, 25b, and 25c via the electromagnetic valves 26a, 26b, and 26c.

  In the above embodiment, the water receiving ring unit 18 is constituted by three water conduits 19a, 19b, 19c, and three balancers 6 are provided correspondingly, but the present invention is not limited to this. The balancer 6 may be configured to have two or more and a water conduit corresponding to the number.

  As described above in detail, according to the washing machine 1 of the present invention, the adjustment water is supplied to the baffle 6 by the centrifugal force generated by the water receiving ring unit 18 that rotates together with the rotating drum 5 to unbalance the rotating drum 5. Can be eliminated. Since the centrifugal force generated by the water receiving ring unit 18 is generated regardless of the arrangement state of the rotary drum 5, the present invention is not limited to the horizontal drum type of the present embodiment, and is also applied to a vertical drum type and an oblique drum type washing machine. Implementation of the invention is possible.

  FIG. 18 is an explanatory diagram of a modified example of the water receiving ring unit 18. FIG. 19 is an assembled perspective view of the water receiving ring unit 18 of FIG.

  The water receiving ring unit 18 realizes the structure corresponding to the ring plate 20 and the bottom plate 21 in the first embodiment by the circular water guide ring 23 integrally formed in a U-shaped cross section forming one water conduit. Is. Water conduits 19a, 19b, 19c are formed by the multilayer of the water guide ring 23 formed in this way, and the water receiving ring unit 18A is configured. Since the water guide ring 23 configured in this way has the same shape, the water guide rods 19a, 19b, 19c are decentered from each other by an angle difference of 120 ° around the axis S1 of the rotary drum 5 as in the first embodiment. The pipe rods 22a, 22b and 22c are fixed to the bottom plate 21 at the eccentric top. By configuring the water receiving ring unit 18 in this way, the amount of eccentricity can be set freely, and the range of eccentricity is not limited by the width of the ring plate 20 as in the first embodiment.

  FIG. 20 is a cross-sectional view showing another example of the baffle 6 disposed on the rotary drum 5, and a downwardly inclined plate 6 c is provided in the baffle 6 from the front end toward the rear end. As the rotation speed of the rotating drum 5 is decreased after the dehydration operation is completed, the centrifugal force in the baffle 6 is gradually attenuated and is not affected, and the adjusted water is loosened in the baffle 6 and drained from the pipe rod 6b by gravity. However, at this time, by providing the slope 6 c inside the baffle 6, drainage of the adjusted water is promoted particularly in the horizontal drum, enabling efficient drainage, and the adjusted water remains in the baffle 6. There is nothing.

  FIG. 21 is an explanatory diagram of a modified example of the water receiving ring unit 18, and by adjusting the attachment portions of the pipe rods 22 a, 22 b, and 22 c as shown in FIG. 21, the bottom plate 21 is formed in a funnel shape. Can be promoted.

Second Embodiment
22 to 26 are views showing a washing machine 50 according to the second embodiment of the present invention. FIG. 22 is a perspective view showing the rotary drum 5 provided in the washing machine 50 of the present embodiment from the back side. FIG. 23 is an exploded perspective view of the water conduit 68. Hereinafter, a configuration different from that of the first embodiment will be described. 22 to 26, the same reference numerals are given to the same configurations as those in the first embodiment.

  In the present embodiment, the plurality of water conduits 68 constituting the water receiving ring unit 69 are not eccentric from each other but are arranged concentrically. Moreover, as shown in FIG. 22, the water conduit 68 has the water conduit main body 68a and the bulging part 68b. The water conduit main body 68a is an annular member having an approximately U-shaped cross section with an inner peripheral surface open. In the vicinity of the baffle 6 corresponding to each water conduit 68, a plurality of the bulging portions 68b are formed to protrude from the bottom of the water conduit main body 68a at equal intervals in the circumferential direction (three in the present embodiment as a whole). The bulging portion 68 b is connected to the baffle 6 via a cylindrical water passage member 74. The water receiving ring unit 69 is configured such that a plurality of (three in this embodiment) water guide rods 68 are fixed to the bottom 5c of the rotating drum 5 concentrically with the rotating drum 5 in a stacked state.

  Such a water receiving ring unit 69 is constructed by assembling a plurality of panel members shown in FIG. The plurality of panel members include a cylindrical ring plate 71, a plurality of disc-shaped (two in this embodiment) first side plates 70 and side plate main bodies 72b having outer peripheries having substantially the same length as the outer peripheries of the ring plates 71. And a pair of substantially disc-shaped second side plates 72 having protrusions 72a, and a bulging member 73 configured by curving both ends of the belt-like material.

  The ring plate 71 has openings 71b or notches 71a, which will be described later, formed at equal intervals at a plurality of locations in the circumferential direction (three locations in this embodiment). The opening 71 b is formed at the center in the axial direction of the ring plate 71, and the notches 71 a are formed at both ends in the axial direction of the ring plate 71.

  The second side plate 72 has a side plate main body 72b whose outer and inner peripheral lengths are substantially the same as those of the first side plate 70, and a protruding portion 72a protruding outward in the radial direction of the side plate main body 72b. The projecting portion 72a has a substantially rectangular shape in which the projecting end 72a1 is gently drawn in an arc, and a plurality (three in the present embodiment) are formed at equal intervals in the circumferential direction of the side plate main body 72b. In addition, an arc-shaped notch 72a2 serving as a water flow port 68b1 described later is formed on one projecting portion 72a of the pair of second side plates 72 on one end side of the projecting end 72a1. A water passage member 74 is connected to the notch 72a2.

  In these panel members, a ring plate 71 fitted with two first side plates 70 is sandwiched between a pair of second side plates 72 such that the protruding portion 72a and the opening 71b or the notch 71a overlap each other, and further a pair of protruding portions. The bulging member 73 is attached and integrated between the parts 72a and 72a. Thus, the ring plate 71 is used as the bottom surface, the first side plate 70 and the second side plate 72, or the two first side plates 70 are used as the bottom wall, and the bulging portion 68b is formed by the protruding portion 72a and the bulging member 73. A water-receiving ring unit 69 is formed in which three water conduits 68 each having the shape are stacked.

  FIG. 24 is a partial cross-sectional perspective view of the water conduit 68 cut along a cross section including the bulging portion 68b. As shown in FIG. 24, the bulging portion 68b of the water conduit 68 has a water passage port 68b1 to which the water passage member 74 shown in FIG. 22 is connected on the advance side in the rotation direction X of the rotary drum 5. 5 has a connection opening 68a1 communicating with the inside of the water conduit main body 68a. The connection opening 68a1 is larger than the water flow opening 68b1, and about two-thirds of the bulging portion 68b opens from one end of the bulging portion 68b toward the rotation direction X.

  Adjustment water is injected from the nozzle unit 25 into the water conduit main body 68a of the water conduit 68 as necessary during the dehydration process. The injected adjustment water is contained in the water main body 68a rotating at high speed. Although it is slightly rolled up, most of it collects in the lower part of the water main body 68a. And if the bulging part 68b rotates to the position used as the lower part of the water receiving ring unit 69, adjustment water will flow down in the bulging part 68b via the connection opening 68a1. Thereafter, the adjustment water is smoothly pressed into the water inlet 68b1 on the advance side in the rotation direction X by centrifugal force so as to be pressed against the side wall 68b2 on the delay side in the rotation direction X of the bulging portion 68b. Then, the water is supplied into the baffle (pocket baffle) 6 through the water passage member 74.

  Thus, the water conduit 68 has the annular water conduit main body 68a and the bulging portion 68b protruding radially outward from the water conduit main body 68a, and the rotational direction X of the rotary drum 5 in the bulged portion 68b. The connection opening 68a1 with the water conduit main body 68a is formed on the delay side of the water flow, and the water flow member 74 is connected on the advance side in the rotation direction X, so that water can flow from the bulging portion 68b using gravity and centrifugal force. The adjustment water can be efficiently poured into the member 74 and the baffle 6, and the unbalance (uneven load) caused by the unevenness of the laundry can be eliminated in a short time.

  FIG. 25 is a longitudinal sectional perspective view showing the washing machine 50 cut in the vicinity of the nozzle unit 25. As shown in the figure, in this embodiment, a nozzle unit 25 having nozzles 25a to 25c is provided at the lower part of the water receiving ring unit 69 (lower part of the rotating drum 5). Adjustment water is injected into the main body 68a along the rotation direction X from above. In this way, the nozzle unit 25 is arranged at a position where water can be supplied toward the water conduit 68 at the lower part of the water receiving ring unit 69, and the water supply position is set at the lower part of the rotary drum 5, so that the water guide is rotating at high speed. The adjustment water can be gently poured from the nozzle unit 25 into the water conduit main body 68a of the water bottle 68, and water splash can be made difficult to occur when the water is injected.

  FIG. 26 is a view showing the baffle 6 disposed in the rotary drum 5. Specifically, FIG. 5A is a longitudinal sectional perspective view partially showing the vicinity of the baffle 6 of the washing machine 50, and FIG. 4B is a perspective view showing the baffle 6, and FIG. ) Is a cross-sectional view showing the baffle 6 cut in a direction perpendicular to the longitudinal direction thereof.

  As shown in FIG. 26, in the present embodiment, a partition member (partition) 56 that narrows the water storage region T inside the baffle 6 along the rotation direction (circumferential direction) of the rotary drum 5 is provided. The partition member 56 is a box-shaped member that opens toward the axis S <b> 1 (see FIG. 2) of the rotary drum 5, and the length in the longitudinal direction is substantially equal to the length in the longitudinal direction of the baffle 6. The length W1 of the partition member 56 in the rotation direction of the rotary drum 5 is configured to be about half of the length W2 of the baffle 6 in the rotation direction of the rotary drum 5. In the present embodiment, a water supply opening 6e through which the water passage member 74 is inserted is formed in the vicinity of the opening edge 56a of the partition member 56 on one end surface in the longitudinal direction of the baffle 6 as shown in FIG. The

  The adjustment water that flows into the baffle 6 through the water passage member 74 is accumulated in the partition member 56 arranged at the central portion in the rotation direction of the baffle 6 until the inflow amount exceeds the capacity of the partition member 56. As a result, the adjustment water gathers in a narrow range in the rotation direction of the baffle 6 as shown by a dotted line in FIG. 26 (c), so that the inside of the baffle 6 without the partition member 56 as shown by a two-dot chain line in the same figure. The spread of the adjustment water in the rotation direction of the rotary drum 5 is suppressed as compared with the case where the adjustment water is supplied to the rotary drum 5. The centrifugal force applied to the adjusted water at the time of dehydration becomes the resultant force of the centrifugal force acting on each of the distributed waters. Since the vector becomes large, the uneven load of the laundry can be canceled efficiently with a smaller amount of adjustment water. When the supply amount of the adjustment water exceeds the capacity of the partition member 56, the adjustment water overflows from the opening end 56 a of the partition member 56 and accumulates sequentially from the radially outer side to the inner side of the rotating drum 5. Then, for example, when the rotational speed of the rotating drum 5 is decreased to end the dehydration and the centrifugal force is reduced, the adjustment water in the baffle 6 located on the upper portion of the rotating drum 5 is caused by gravity to the axis S1 (see FIG. 2) side. To the outside of the baffle 6 through the water passage member 74.

  Thus, since the partition member 56 that narrows the water storage region T inside the baffle 6 in the circumferential direction of the rotary drum 5 is disposed, the adjustment water is collected in the baffle 6 in a narrow range in the rotation direction of the rotary drum 5. The unbalance caused by the bias of the laundry can be eliminated in a short time with a smaller amount of adjustment water.

  27 and 28 are flowcharts showing the control of the washing machine 50 of the second embodiment. FIG. 29 is a diagram for explaining the flow of control of the dehydration operation of the washing machine 50.

  In the present embodiment, when the central control unit 31 receives an input signal from a dehydration button (not shown) or a signal indicating that the dehydration process should be started during the washing course operation, the process proceeds to step SP1 to start the dehydration process. In the present embodiment, description regarding control between each component in the control unit 30 as described in the first embodiment is omitted.

<Step SP1>
In step SP1, the central control unit 31 loosens and inverts the rotating drum 5, and then accelerates the rotation of the rotating drum 5.

<Step SP2>
In step SP2, the central control unit 31 rotates the rotary drum 5 at a low speed based on the low speed rotation set value (N1).

<Step SP3>
In step SP3, the central control unit 31 detects the unbalance amount (M) based on the acceleration value (the x component of the acceleration sensor) given from the acceleration sensor 12.

<Step SP4>
In step SP4, the central control unit 31 compares the unbalance amount (M) with the unbalance amount setting value (ma) stored in the memory 32, and determines whether M <ma holds. If it is determined that M <ma holds, the process proceeds to step SP6. On the other hand, if it is determined that M <ma does not hold, the process proceeds to step SP5. Here, the unbalance amount setting value (ma) is a threshold value indicating that the laundry is biased to such an extent that it is difficult to eliminate even if adjustment water is supplied to the baffle 6. That is, when proceeding to step SP5, it means that it is determined that the bias of the laundry is so large that it is difficult to eliminate even if adjustment water is supplied to the baffle 6.

<Step SP5>
In step SP5, the central control unit 31 stops the rotation of the rotary drum 5, and then returns to step SP1 and repeats steps S1 to S4.

<Step SP6>
In step SP6, if the central control unit 31 determines that the elapsed time since the start of the low-speed rotation is equal to or longer than a predetermined set time for performing the low-speed rotation process, the central control unit 31 proceeds to step SP7.

<Step SP7>
In step SP7, the central control unit 31 rotates the rotating drum 5 at high speed based on the high speed rotation set value (N2).

<Step SP8>
In step SP8, the central control unit 31 detects the unbalance amount (M) and the unbalance position (N) based on the acceleration value given from the acceleration sensor 12.

<Step SP9>
In step SP9, the central control unit 31 replaces the solenoid valve X, the region Y, and the solenoid valve Z shown in FIG. 29 with values in the parameter table based on the unbalance position (N). In FIG. 29, the cross section of the rotating drum 5 is divided into six equal parts in the circumferential direction, and the positional relationship with the baffle 6 is schematically shown. The baffle 6 described as 25a is the nozzle shown in FIG. The baffle 6 to which adjustment water is supplied from 25a is represented. Similarly, the baffle 6 described as 25b represents the baffle 6 supplied with adjusted water from the nozzle 25b shown in FIG. 25 and the baffle 6 described as 25c from the nozzle 25c shown in FIG.

<Step SP10>
In step SP10, the central control unit 31 opens the electromagnetic valve X described in the parameter table of FIG. For example, when the unbalance position (N) is in the region I, the electromagnetic valve X becomes the electromagnetic valve 25c corresponding to the baffle 6 facing the region I. Thereby, adjustment water is supplied to the baffle 6 corresponding to the electromagnetic valve X, and the amount and position of the offset load change.

<Step SP11>
In step SP11 shown in FIG. 28, the central control unit 31 recalculates the unbalance amount (M) and the unbalance position (N) based on the acceleration value given from the acceleration sensor 12.

<Step SP12>
In step SP12, the central control unit 31 compares the unbalance amount (M) with the above-described unbalance amount setting value (ma) stored in the memory 32, and determines whether or not M <ma holds. If it is determined that M <ma holds, the process proceeds to step SP13. On the other hand, if it is determined that M <ma does not hold, the process proceeds to step SP21 described later. That is, if it is determined that the laundry is biased to the extent that it is difficult to eliminate even if adjustment water is supplied to the baffle 6, the process proceeds to step SP21.

<Step SP13>
In step SP13, the central control unit 31 compares the unbalance amount (M) with the above-described unbalance amount set value (mb) stored in the memory 32, and determines whether M <mb holds. If it is determined that M <mb holds, the process proceeds to step SP23 described later. On the other hand, if it is determined that M <mb does not hold, the process proceeds to step SP14. Here, the unbalance amount setting value (mb) is a value smaller than the unbalance amount setting value (ma), and the laundry is biased to the extent that no noise is generated even if the adjustment water is not supplied to the baffle 6. Is a threshold value indicating that is small. In other words, if it is determined that there is little or no uneven load and no noise is generated even if water is not supplied to the baffle 6, the process proceeds to step SP23.

<Step SP14>
In step SP14, when the central control unit 31 determines that the elapsed time after opening the solenoid valve X is equal to or longer than the set time, the process proceeds to step SP15. Here, the set time is a time required until the inside of one baffle 6 is filled with adjusted water.

<Step SP15>
In step SP15, the central control unit 31 determines whether or not the unbalance position (N) is the region Y shown in the parameter table of FIG. If it is determined that the unbalance position (N) is the region Y, the process proceeds to step SP16. If it is determined that the unbalance position (N) is not the region Y, the process returns to step SP11. For example, when the initial unbalance position (N) in step SP11 is the area I, if the recalculation is not performed thereafter, the unbalance position (N) remains in the area I, and the process returns to step SP16. Since the result of the recalculation in step SP16 changes with time due to the water supply from the solenoid valve X, when the weight of the baffle 6 corresponding to the solenoid valve 25c increases, the unbalance position (N) changes from the region I to the region V. When the step SP15 is repeated a plurality of times, the unbalance position (N) changes to the region Y.

<Step SP16>
In step SP16, the central control unit 31 closes the electromagnetic valve X described in the parameter table of FIG. 29 and opens the electromagnetic valve Z. For example, when the initial unbalance position (N) is in the region I, the electromagnetic valve X is the electromagnetic valve 25c corresponding to the baffle 6 facing the region I, and the electromagnetic valve Z is the baffle 6 corresponding to the electromagnetic valve 25c. Thus, the electromagnetic valve 25b corresponding to the baffle 6 located closer to the region I is obtained. Thereby, adjustment water is supplied to the baffle 6 corresponding to the electromagnetic valve Z, and the amount and position of the offset load change.

<Step SP17>
In step SP17, the central control unit 31 recalculates the unbalance amount (M) and the unbalance position (N) based on the acceleration value given from the acceleration sensor 12.

<Step SP18>
In step SP18, the central control unit 31 compares the unbalance amount (M) with the aforementioned unbalance amount setting value (ma) stored in the memory 32, and determines whether M <ma holds. If it is determined that M <ma holds, the process proceeds to step SP19. On the other hand, if it is determined that M <ma does not hold, the process proceeds to step SP21 described later. In other words, if it is determined that the laundry is biased to the extent that it is difficult to eliminate even if adjustment water is supplied to the baffle 6, the process proceeds to step SP21.

<Step SP19>
In step SP19, the central control unit 31 compares the unbalance amount (M) with the unbalance amount setting value (mb) stored in the memory 32, and determines whether M <mb holds. If it is determined that M <mb holds, the process proceeds to step SP23 described later. That is, if it is determined that the uneven load has been eliminated to the extent that noise is not generated by the water supply to the baffle 6, the process proceeds to step SP23. On the other hand, if it is determined that M <mb does not hold, the process proceeds to step SP20.

<Step SP20>
In step SP20, when the central control unit 31 determines that the elapsed time after opening the solenoid valve Z is equal to or longer than the set time, the process proceeds to step SP21 described later. On the other hand, if it is determined that the elapsed time since opening the solenoid valve Z is not equal to or longer than the set time, the process returns to step SP17.

<Step SP21>
In step SP21 shown in FIG. 27, the central control unit 31 closes all the electromagnetic valves X, Y, and Z.

<Step SP22>
In step SP22, the central control unit 31 stops the rotation of the rotary drum 5, and then returns to step SP1.

  As described above, when it is determined that the unbalanced load is so large that it cannot be eliminated by supplying water to the baffle 6, the processing of steps SP21 and 22 is performed, and the dehydration processing is performed again from the beginning.

<Step SP23>
In step SP23 shown in FIG. 28, the central control unit 31 closes all the solenoid valves X, Y, and Z.

<Step SP24>
In step SP24 shown in FIG. 28, the central control unit 31 rotates the rotating drum 5 at the maximum number of rotations for a predetermined time to perform a dehydration process. Thereafter, the dehydration process is terminated.

  Thus, in the present embodiment, first, only the baffle 6 that is farthest from the first detected unbalance position (N) and has a great influence on the adjustment of the unbalance amount (M) and the position (N) is used. When water is supplied and the water supply to the baffle 6 is finished, the second baffle 6 is supplied with water as needed while taking into account changes in the unbalance amount (M) and position (N) due to the water supply. . As a result, unlike the case where water is supplied to a plurality of baffles 6 at the same time, it is not necessary to consider that the adjusted water is not supplied to each baffle 6 by a certain amount due to the resistance of the wall surface of the water conduit 68. Therefore, it is not necessary to adjust the water supply speed difference by opening / closing the electromagnetic valve 16, so that the number of opening / closing of the electromagnetic valve 16 can be reduced, and the durability of the electromagnetic valve 16 can be suppressed from decreasing.

  Although the second embodiment of the present invention has been described above, the configuration of the second embodiment is not limited to the above-described configuration, and various modifications can be made.

  For example, as illustrated in FIG. 30, a plurality of water storage cases (pockets) 80 serving as water storage units may be provided on the bottom portion 5 c of the rotary drum 5. FIG. 30 is a diagram illustrating a modification of the second embodiment. Specifically, FIG. 10A is a perspective view showing a modification example from the bottom 5c of the rotary drum 5, and FIG. 10B shows the modification example cut away in the vicinity of the water storage case 80 and the baffle 6. FIG. FIG. The water storage case 80 is a hollow member provided outside the water receiving ring unit 69 in the radial direction and at a position corresponding to each baffle 6 using the dead space of the water receiving ring unit 69. The water storage case 80 communicates with the corresponding baffle 6 via the communication port 80a, and is configured such that adjusted water flows from the baffle 6 by centrifugal force. The adjustment water that has flowed into the water storage case 80 is discharged to the baffle 6 through the communication port 80a when the rotational speed of the rotary drum 5 decreases and the centrifugal force decreases.

  As described above, the outer surface of the rotating drum 5 is attached to the end surface in the axis S1 direction, specifically, the bottom portion 5c of the rotating drum 5, and has a water storage case 80 as a plurality of water storage portions communicating with each of the plurality of baffles 6. Therefore, it is possible to increase the capacity of the pocket baffle by using the water storage case 80 and take in more adjustment water, and even when the lump of laundry during dehydration is large, it can cancel out the uneven load stably. Can do.

  The configuration of the first embodiment and the configuration of the second embodiment may be combined with each other to configure the present invention.

  Furthermore, the configuration of the above embodiment may be applied to a vertical washing machine. In this case, for example, the water receiving ring unit is horizontally disposed below the washing tub whose axis extends in the vertical direction, and the upper surface of the water basin. Alternatively, the bottom surface is opened, and the adjustment water is supplied to the water conduit from above or below.

1,50 ... ・ Washing machine 2 .... Main body 3 .... Outer tub 4 .... Door body 5 .... Rotating drum (washing tub)
6. Baffle (balancer)
7... Bearing 8... Spindle 9... Pulley 10 .. Drum motor 11... Pulley belt 12. ... Sensor mark 14 ... Proximity switch 15 ... Drain pipe 16 ... Solenoid valve 17 ... Pump 18, 69 ... Water-receiving ring unit 19a ··· Water guide rod 19b ··· Water guide rod 19c ··· Water guide rod 20 ··· Ring plate 21 ··· Bottom plate 22a ··· Pipe rod 22b ··· Pipe rod 22c ··· Pipe rod 23 ··· Conducting ring 24a ······························································· • ·・ Electromagnetic valve 26b ... Electromagnetic valve 26c ... Electromagnetic valve 30 ... Control part 56 ... Partition member 68 ... Water guide rod 68a ... Water guide rod main body 68a1 ... Connection opening 68b ... Swelling Part 74 ... water-permeable member 80 ... water storage case (water storage part)
T ・ ・ ・ ・ ・ ・ Water storage area

Claims (9)

A washing tub,
A plurality of hollow balancers disposed on the inner peripheral surface of the washing tub along the axial direction of the washing tub;
A water-receiving ring unit configured by stacking a plurality of annular water conduits corresponding to each of the balancers, and being fixed to an axial end portion of the outer surface of the washing tub,
A water passing member that connects a part of the water conduit and the balancer corresponding to the water conduit;
A washing machine comprising: a nozzle unit that individually injects adjustment water into the water conduit.   The washing machine according to claim 1, wherein the balancer is a baffle that scrapes up laundry.   The water balance ring unit is configured such that the balancer is disposed at an equal interval on the inner peripheral surface of a rotating drum that is a washing tub, and the water conduit opens the inner peripheral surface and the outer peripheral surface is bottomed. The bottom plate of the water basin of each layer is eccentric with respect to the axis of the washing tub, and is fixed so that the angular difference in the eccentric direction of the adjacent bottom plates is the same, and the water passing member is attached to the eccentric top of the bottom plate. The washing machine according to claim 1 or 2, wherein the washing machine is provided.   The washing machine according to claim 2, wherein an inclined plate having a descending slope from the front end toward the rear end is disposed inside the baffle.   The washing machine according to claim 3, wherein the bottom plate is formed in a funnel shape at a position where the water passage member is attached to the bottom plate.   The water conduit has an annular water conduit main body and a bulging portion that protrudes radially outward from the water conduit main body, and the water conduit main body on the rotation direction delay side of the washing tub among the bulged portions. The washing machine according to claim 1, wherein a connection opening is formed, and the water passage member is connected to the rotation direction leading side.   The washing machine according to claim 1 or 2, further comprising a partition member that narrows a water storage area inside the balancer in a circumferential direction of the washing tub.   3. The washing machine according to claim 1, further comprising: a plurality of water storage units that are attached to an axial end portion of the outer surface of the washing tub and communicate with each of the plurality of balancers. The washing tub is a rotating drum whose axial direction is substantially horizontal, and is configured such that a water conduit constituting the water-receiving ring unit has an inner peripheral surface opened and an outer peripheral surface is bottomed. The washing machine according to claim 1, wherein the washing machine is disposed at a position where water can be supplied toward the water conduit at a lower portion of the water receiving ring unit.

Images