JP7285803B2 - washing machine - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a washing machine for washing objects to be washed contained in a washing tank.

Conventionally, as a washing machine that supplies water to a washing tank containing objects to be washed such as tableware and washes the objects to be washed, it is equipped with a water leakage detection unit that detects water leakage from the washing tank. A washing machine that discharges water in a tank is known (see Patent Document 1, for example).

JP 2007-007156 A

However, unless the water leakage detector detects water leakage, such a washing machine may continue to perform normal processing even when an earthquake or the like occurs during washing processing or the like. For this reason, the washing machine cannot prevent water leakage even when the internal mechanism is damaged by vibrations such as an earthquake.

The present disclosure has been made to solve the above problems, and an object of the present disclosure is to provide a washing machine that can prevent the occurrence of water leakage.

A washing machine according to the present disclosure is a washing machine for washing an object to be washed, comprising: a washing tank containing the object to be washed; water being supplied to the washing tank; A water supply washing mechanism for washing an object, a water level detection unit for detecting the water level inside the washing tank, a drainage mechanism for discharging the water inside the washing tank to the outside, and a vibration of the washing machine. a vibration detection unit; and a control unit that controls the water supply washing mechanism, the water level detection unit, and the drainage mechanism. and when the detection result by the water level detection unit indicates that the water is contained in the cleaning tank, the drainage mechanism discharges the water and the vibration detection unit is installed separately from the cleaning tank at a position below the cleaning tank in the vertical direction, and detects the vibration during a time including the time when the water supply cleaning mechanism is in operation. It is.

According to the washing machine of the present disclosure, when the vibration detection section detects vibration of the washing machine, the control section causes the water level detection section to detect the water level in the washing tank. Then, when the detection result by the water level detection section indicates that water is contained in the cleaning tank, the control section controls the drainage mechanism to discharge the water to the outside. Therefore, when there is a possibility of water leakage due to damage to internal parts due to vibration, the washing machine can prevent the occurrence of water leakage by discharging the water in the washing tank.

1 is a cross-sectional view schematically illustrating an internal configuration of a washing machine according to Embodiment 1; FIG. 1 is a front view schematically illustrating an appearance of a washing machine according to Embodiment 1; FIG. 4 is a block diagram illustrating output sources and output destinations of signals related to control by a control unit; FIG. 7 is a flow chart illustrating a process when vibration occurs by the washing machine according to Embodiment 1. FIG. FIG. 7 is a cross-sectional view schematically illustrating an internal configuration of a washing machine according to Embodiment 2; FIG. 11 is a block diagram illustrating an output source and an output destination of a signal according to Embodiment 2; FIG. 10 is a flowchart illustrating an earthquake information reception process by the cleaning machine according to Embodiment 2; FIG. 11 is a cross-sectional view schematically illustrating an internal configuration of a washing machine according to Embodiment 3;

Embodiments will be described below with reference to the drawings. In the drawings below, the size relationship of each component may differ from the actual size.

Embodiment 1.
FIG. 1 is a cross-sectional view schematically illustrating the internal configuration of a washing machine according to Embodiment 1. FIG. FIG. 2 is a front view schematically illustrating the appearance of the washing machine according to Embodiment 1. FIG. The X direction in FIG. 1 is the horizontal direction when the washing machine 100 is installed on the installation surface, and corresponds to the front-rear direction of the washing machine 100 . The direction of the X-axis in FIG. 1 corresponds to the direction from the front side to the rear side of the washer 100 . The Y direction in FIGS. 1 and 2 corresponds to the vertical direction when the washing machine 100 is installed on the installation surface. The direction of the Y-axis is upward.

The washing machine 100 includes a housing 1, a washing tank 2, a rail mechanism 3, a holding mechanism 4, a front door 5, a water washing mechanism 6, a drainage mechanism 7, a lower cover 8, a drying mechanism 9, a water level detector 10, and a water leakage detector. 11 , a vibration detection unit 12 , and a control unit 13 . The housing 1 corresponds to the outer shell of the washer 100 . The housing 1 is box-shaped and has an opening formed on the front surface.

The cleaning tank 2 is box-shaped and has an opening on its top surface. The washing tank 2 contains a basket 21, such as a tableware basket, for placing objects 20 to be cleaned such as dishes. The cleaning tank 2 can be accommodated inside the housing 1 and drawn out from the housing 1 through an opening in the front surface of the housing 1 .

The rail mechanism 3 has a first rail fixed to the cleaning tank 2 and a second rail fixed to the housing 1 . By sliding the first rail on the second rail, the cleaning tank 2 can be pulled forward from the opening of the housing 1 and can be accommodated inside the housing 1 .

The holding mechanism 4 is for holding the position of the washing tank 2 that is moved by sliding with the rail mechanism 3, and has a latch 4a and a spring 4b. The holding mechanism 4 in Embodiment 1 holds the cleaning tank 2 at a predetermined position inside the housing 1 when the cleaning tank 2 is housed at the predetermined position.

An openable and closable inner lid 22 is provided at an opening in the upper surface of the cleaning tank 2 . When the washing tank 2 is pulled out from the housing 1, the inner lid 22 is lifted by a link mechanism (not shown) to open the inside. As a result, the object to be cleaned 20 can be put in and taken out of the basket 21 inside the cleaning tank 2 .

A recess is formed in the bottom surface of the cleaning tank 2 in Embodiment 1 when the bottom surface is viewed from above. That is, the bottom surface of the cleaning tank 2 is formed with a downward depression. In Embodiment 1, it is assumed that the recess is formed in the front bottom surface of the cleaning tank 2 . Below, the space inside the depression may be referred to as a depression region 2a. Also, the bottom surface of the recess may be referred to as a recess bottom surface 2b.

The front door 5 in Embodiment 1 is provided integrally with the cleaning tank 2 in the cleaning machine 100, and covers the opening of the housing 1 when the cleaning tank 2 is housed inside the housing 1. . The front door 5 is formed with a handle 50 for the user to put his or her hand on to pull out the cleaning tank 2 forward.

The front door 5 is provided with an operation portion 51 and an exhaust port 52 . The operation unit 51 receives an instruction input from the user and outputs an operation signal corresponding to the instruction to the control unit 13, which will be described later. Operation unit 51 includes a power switch 51A and an operation switch 51B.

The power switch 51A is a switch for turning the power of the washing machine 100 on or off. The washing machine 100 is turned on or off by the user pressing the power switch 51A, for example. In other words, the washing machine 100 is supplied with power from a power source (not shown) through the power switch 51A, and the power supply is stopped.

The operation switch 51B is a switch for starting or temporarily stopping the operation of the washing machine 100 . The washing machine 100 starts or pauses operation when the user presses the operation switch 51B, for example. It should be noted that hereinafter, the operation of the washing machine 100 corresponds to the operation for washing the object 20 to be washed or the operation for washing and drying the object 20 to be washed. It corresponds to operation, drying operation, and the like.

The operation unit 51 is not limited to the illustrated type of switches, and may have switches for performing other operations. Also, each switch of the operation unit 51 may be provided on the upper surface of the housing 1 or on a side surface perpendicular to the front surface and the upper surface of the housing 1 instead of on the front door 5 .

The exhaust port 52 is provided for discharging the air sent into the cleaning tank 2 to dry the cleaning object 20 to the outside of the housing 1 by the blower 90 in the drying mechanism 9 to be described later. It is an opening. It should be noted that the exhaust port 52 may be provided on the upper surface or the side surface of the housing 1 or on the rear surface facing the front surface of the housing 1 instead of the front door 5 .

The water supply washing mechanism 6 is a mechanism for supplying water to the washing tank 2 to wash the object to be washed 20 placed on the basket 21 . The water supply washing mechanism 6 in Embodiment 1 has a water supply valve 60 , a first heater 61 , a washing pump 62 , a first water supply pipe 63 , a second water supply pipe 64 and a washing nozzle 65 .

The water supply valve 60 is for supplying tap water to the washing tank 2 . The water supply valve 60 is arranged at the rear of the cleaning tank 2, and supplies tap water to the cleaning tank 2 by opening and shuts off the inflow of tap water to the cleaning tank 2 by closing.

The first heater 61 is for heating the water stored inside the cleaning tank 2 and is installed in the recessed area 2 a of the cleaning tank 2 . The cleaning pump 62 , the first water supply pipe 63 and the like are installed below the cleaning tank 2 . The second water supply pipe 64 is installed so as to penetrate the bottom surface of the cleaning tank 2 from bottom to top. The cleaning nozzle 65 is attached to the upper end of the second water supply pipe 64 and arranged inside the cleaning tank 2 .

The cleaning pump 62 communicates with the recessed region 2 a of the cleaning tank 2 via the first water supply pipe 63 and pressurizes the water stored inside the cleaning tank 2 . The water pressurized by the cleaning pump 62 passes through the second water supply pipe 64 and is supplied to the cleaning nozzle 65 . The cleaning nozzle 65 injects the supplied water onto the object 20 to be cleaned.

The drainage mechanism 7 is a mechanism for discharging the water inside the washing tank 2 to the outside of the washing machine 100 and has a drainage pump 70 and a drainage pipe 71 . A drainage pump 70 and a drainage pipe 71 are installed below the cleaning tank 2 . The drain pump 70 communicates with the recessed area 2a of the cleaning tank 2 through a drain pipe 71, and discharges the water stored in the cleaning tank 2 to the outside.

The lower cover 8 is a cover provided parallel to the installation surface of the washing machine 100 below the washing pump 62, the first water supply pipe 63, the drain pump 70, etc. of the water supply washing mechanism 6. As shown in FIG. Lower cover 8 in Embodiment 1 is integrated with cleaning tank 2 and front door 5 . The lower cover 8 moves with the cleaning tank 2 when the cleaning tank 2 slides and moves. The lower cover 8 shields the cleaning pump 62, the first water supply pipe 63, the drain pump 70 and the like from the outside when the cleaning tank 2 is pulled out from the housing 1. As shown in FIG.

The drying mechanism 9 is for drying the object to be cleaned 20 placed on the basket 21 . The drying mechanism 9 has a blower 90 and a second heater 91 . The blower 90 sends air from the outside of the washing machine 100 into the washing tank 2 . The second heater 91 is provided between the blower 90 and the cleaning tank 2 in an air passage 92 that connects the blower 90 and the inside of the cleaning tank 2 . The second heater 91 heats the air taken into the washer 100 by the blower 90 . The blower 90 and the second heater 91 blow warm air into the cleaning tank 2 , and the hot air evaporates the moisture in the cleaning object 20 in the cleaning tank 2 . The hot air containing the evaporated moisture flows out from the exhaust port 52 to the outside. In this manner, the object to be cleaned 20 in the cleaning tank 2 is dried.

The water level detector 10 detects the water level inside the cleaning tank 2 . Here, since there is a one-to-one correspondence between the amount of water inside the cleaning tank 2 and the water level, the water level detection unit 10 detects the amount of water inside the cleaning tank 2 to detect the amount of water inside the cleaning tank 2 . It can detect the water level. Alternatively, the water level detection unit 10 can detect the amount of water inside the cleaning tank 2 by detecting the water level inside the cleaning tank 2 . The water level detection unit 10 in Embodiment 1 detects that a predetermined amount of water is supplied inside the cleaning tank 2 . Hereinafter, the predetermined amount may be referred to as a water level detection target amount. The water level detection unit 10 in Embodiment 1 detects the water level with reference to the recess bottom surface 2b, which is the bottom surface of the recess forming the recess region 2a.

In the first embodiment, the water level detection unit 10 is located in the space provided between the washing tank 2 and the front door 5 at the same height as the recessed region 2a or the recessed bottom surface 2b with respect to the installation surface of the washing machine 100. installed in position. When the water level detection unit 10 detects that the cleaning tank 2 contains a target amount of water for water level detection, the water level detection unit 10 detects that the cleaning tank 2 contains a target amount of water for water level detection. A water level detection signal shown is output to the control unit 13 .

The water leakage detection unit 11 detects water leakage from the washing tank 2 to the bottom plate 1a of the washing machine 100 . Note that the bottom plate 1 a is a part of the housing 1 and forms the bottom surface of the housing 1 . The water leakage detection unit 11 detects water leakage when a predetermined amount of water accumulates in the water leakage detection target space. Below, the said predetermined amount may be described as a water leakage detection target amount. The water leakage detection target space is, for example, the space between the lower cover 8 and the bottom plate 1a, or the space between the bottom surface of the cleaning tank 2 and the bottom plate 1a, and the space whose bottom surface is the bottom plate 1a. Point. In Embodiment 1, the water leakage detector 11 is installed on the upper surface of the bottom plate 1a. The water leakage detection unit 11 outputs a water leakage detection signal indicating the detection result to the control unit 13 .

The vibration detection unit 12 detects vibration of the washing machine 100 due to an earthquake, impact, or the like. The vibration detector 12 is, for example, a seismic intensity meter. As described above, the water leakage detection unit 11 detects the occurrence of water leakage, but water leakage may occur when parts of the cleaning machine 100 are damaged due to an earthquake, impact, or the like. The vibration detection unit 12 detects vibration that triggers water leakage before the water leakage detection unit 11 detects water leakage. Then, the washing machine 100 according to the embodiment uses the detection result of the vibration detection unit 12 to suppress the expansion of water leakage from the washing tank 2 and prevent water leakage from the washing machine 100 .

The vibration detection unit 12 outputs a vibration detection signal to the control unit 13, for example, upon detecting a vibration equal to or greater than a predetermined standard seismic intensity. Upon receiving the vibration detection signal, the control unit 13 causes the washing machine 100 to perform an operation for suppressing water leakage.

Note that the vibration detection unit 12 in Embodiment 1 outputs a vibration detection signal to the control unit 13 by detecting, for example, vibration when the cleaning tank 2 is put in and taken out, and vibration when cleaning the object 20 to be cleaned. It is provided separately from the cleaning tank 2 so as not to cause any trouble. Further, the vibration detection unit 12 in Embodiment 1 is provided on the side of the bottom plate 1a where the vibration when the cleaning tank 2 is put in and taken out is relatively small in the housing 1 . More specifically, the vibration detector 12 is provided below the lower cover 8 . Further, the vibration detector 12 is installed at a predetermined height from the bottom plate 1a so as not to be submerged in water when water leaks from the cleaning tank 2. As shown in FIG. Further, the vibration detection unit 12 is installed behind the central position inside the housing 1 so as not to detect the vibration caused by the cleaning tank 2 being taken in and out through the front opening of the housing 1 .

The controller 13 controls the washer 100 . Here, the control unit 13 outputs a control signal to a component to be controlled in the washing machine 100 based on a signal acquired from one or more components in the washing machine 100, thereby controlling the component to be controlled. Control. Below, the component of the controlled object may also be described as the controlled object. FIG. 3 is a block diagram illustrating output sources and output destinations of signals related to control by a control unit. As shown in FIG. 3, the control unit 13 acquires an operation signal from the operation unit 51, acquires a water level detection signal from the water level detection unit 10, acquires a water leakage detection signal from the water leakage detection unit 11, and obtains a vibration detection unit 12. Acquire the vibration detection signal from When the control unit 13 acquires any of these signals, the control unit 13 performs control according to the acquired signal.

In addition, as shown in FIG. 3 , the washing machine 100 further includes a notification unit 14 . The notification unit 14 includes a display device, a lighting device, an audio output device, or the like, and notifies the operation of the washing machine 100 . The notification unit 14 may be provided together with the operation unit 51 on the front door 5 . Alternatively, the notification unit 14 may be provided on the top surface or side surface of the housing 1 .

The control unit 13 controls the water supply valve 60, the first heater 61, and the cleaning pump 62 in the water supply cleaning mechanism 6, the drainage pump 70 in the drainage mechanism 7, the drying mechanism 9, the water level detection unit 10, and the notification unit 14. Control. When the control unit 13 acquires a signal from any one of the operation unit 51, the water level detection unit 10, the water leakage detection unit 11, and the vibration detection unit 12, the control unit 13 generates a control signal according to the acquired signal. . The control unit 13 controls any one of the water supply valve 60, the first heater 61, the washing pump 62, the drainage pump 70, the drying mechanism 9, the water level detection unit 10, and the notification unit 14, and controls the control target. output the control signal to The controlled object executes or stops the operation based on the control signal acquired from the control unit 13 .

Specifically, when receiving a water leakage detection signal from the water leakage detection unit 11, the control unit 13 controls a controlled object such as the drain pump 70 so as to prevent further water leakage. In this case, the controller 13 causes the drainage pump 70 to perform the drainage treatment. When the control unit 13 receives the vibration detection signal from the vibration detection unit 12, the control unit 13 controls the control target so as to prevent water leakage. More specifically, when the control unit 13 receives the vibration detection signal and the water washing mechanism 6 is in operation, the water washing mechanism 6 stops operating. Then, the control unit 13 causes the water level detection unit 10 to detect the presence or absence of water inside the cleaning tank 2, and causes the drainage pump 70 to perform drainage processing when there is water inside the cleaning tank 2. FIG. Further, the control unit 13 causes the notification unit 14 to notify that the operation of the washing machine 100 is stopped due to the occurrence of vibration.

When causing the controlled object to perform an operation, the control unit 13 energizes the controlled object by a power source (not shown). On the other hand, when the controlled object is to stop operating, the control unit 13 stops energizing the controlled object from the power source (not shown).

The control unit 13 includes, for example, a processor such as a CPU (Central Processing Unit) or MPU (Micro Processing Unit), a memory such as ROM (Read Only Memory) or RAM (Random Access Memory), and an input/output interface circuit. . The control unit 13 acquires a signal from any one of the operation unit 51, the water level detection unit 10, the water leakage detection unit 11, and the vibration detection unit 12 via the input/output interface circuit. The control unit 13 executes various programs stored in the memory, generates a control signal, and outputs the control signal to the controlled object via the input/output interface circuit. In Embodiment 1, the controller 13 is installed in the space provided between the cleaning tank 2 and the front door 5 .

The operation of the washing machine 100 according to Embodiment 1 will be described below. First, the water supply operation, cleaning operation, drainage operation, and drying operation of the washer 100 will be described. The washer 100 performs a water supply operation, a washing operation, a drain operation, and a drying operation in accordance with an operation start instruction input via the operation unit 51 . Here, the washing machine 100 repeats a series of operations of water supply operation, washing operation, and drainage operation in this order for a predetermined number of times. Then, washing machine 100 executes the drying operation after executing the series of operations of water supplying operation, washing operation, and draining operation for the number of times.

First, before the first water supply operation by the washing machine 100 described above, the object to be washed 20 is accommodated inside the washing tank 2 . Specifically, the user pulls out the cleaning tank 2 forward from the housing 1 via the handle 50 and places the object 20 to be cleaned on the basket 21 included in the cleaning tank 2 . The user returns the cleaning tank 2 containing the cleaning object 20 into the housing 1 . When the cleaning tank 2 is accommodated in the housing 1 , the upper opening of the cleaning tank 2 is closed by the inner lid 22 . Note that the user may put detergent into the washing machine 100 as needed.

Subsequently, when the user presses the operation switch 51B, the washing machine 100 starts operating and performs the water supply operation. Specifically, the water supply valve 60 is opened by the controller 13 to supply water into the cleaning tank 2 . When the water level detection unit 10 detects that the first water level detection target amount of water has been supplied into the washing tank 2, the water level detection unit 10 detects the water level detection indicating that the first water level detection target amount of water has been supplied into the washing tank 2. A signal is output to the control unit 13 . The first water level detection target amount is one of the water level detection target amounts described above, and is the water level detection target amount that is set when the washing machine 100 performs the water supply operation. Upon receiving the water level detection signal from the water level detector 10 , the controller 13 closes the water supply valve 60 . This completes the water supply operation. Below, the water supplied to the cleaning tank 2 may be described as cleaning water.

Subsequently, the washing machine 100 performs a washing operation. In the cleaning operation, the controller 13 energizes the first heater 61 . The energized first heater 61 heats the washing water to a predetermined temperature. Also, the controller 13 drives the cleaning pump 62 . Thereby, the washing pump 62 pumps the washing water heated by the first heater 61 to the washing nozzle 65 . The cleaning nozzle 65 jets cleaning water from a nozzle hole formed in the cleaning nozzle 65 to the cleaning object 20 in the cleaning tank 2 . Since the washing nozzle 65 is rotated by the reaction force of the injection of the washing water, the washing water is evenly sprayed onto the object 20 to be washed. As a result, the object 20 to be cleaned is cleaned. In addition, since the opening formed in the upper surface of the cleaning tank 2 is sealed with the inner lid 22, the cleaning water is prevented from splashing to the outside during the cleaning operation.

The washing water sprayed from the washing nozzle 65 into the washing tank 2 accumulates in the recessed region 2a of the washing tank 2, is pressure-fed to the washing nozzle 65 again by the washing pump 62, and is sprayed from the nozzle hole. Thus, the washing water circulates through the washing tank 2, the first water supply pipe 63, the washing pump 62, the second water supply pipe 64, and the washing nozzle 65 in order. After such circulation of the washing water is repeated for a predetermined period of time, the control unit 13 terminates the washing operation of the washing machine 100 . At this time, the controller 13 stops energizing the first heater 61 and the cleaning pump 62 .

In the drainage operation following the cleaning operation, the control unit 13 energizes the drainage pump 70, drives the drainage pump 70, and discharges the cleaning water used for cleaning to the outside. Washing water is discharged to the outside through a drain pipe 71 . After completing the draining operation, the controller 13 stops energizing the drain pump 70 .

As described above, after the drain operation is completed, the control unit 13 controls the washer 100 so as to repeatedly perform a series of operations including the water supply operation, the cleaning operation, and the drain operation. As a result, the washing machine 100 starts water supply operation after the completion of the water discharge operation, the water supply valve 60 is opened again, and water is supplied to the washing tank 2 . Then, the washing machine 100 starts the washing operation following the water supply operation, and the washing water in the washing tank 2 is heated by the first heater 61, pressure-fed to the washing nozzle 65 by the washing pump 62, and washed from the nozzle hole. It spouts into tank 2. After circulating the wash water for a predetermined time, the washer 100 ends the wash operation and performs the drain operation. As a result, the wash water is discharged by the drain pump 70 . Such water supply operation, cleaning operation and drain operation are repeated the predetermined number of times.

After a series of operations including the water supply operation, the cleaning operation, and the drainage operation are performed a predetermined number of times, the control unit 13 causes the washer 100 to perform the drying operation. In this case, the control unit 13 controls the blower 90 so that the blower 90 and the second heater 91 are energized and the air from the outside is sent into the cleaning tank 2 . The air sent into the washing machine 100 by the blower 90 is heated by the second heater 91 provided on the air passage 92 connecting the blower 90 and the washing tank 2 to become warm air, and flows inside the washing tank 2. blow in. The hot air evaporates moisture on the surface of the object 20 to be cleaned. Then, the hot air containing the evaporated moisture flows out from the exhaust port 52 to the outside. The control unit 13 energizes the blower 90 and the second heater 91 for a predetermined time, and causes the washing machine 100 to perform the drying operation described above. After the predetermined time elapses, the controller 13 stops energizing the blower 90 and the second heater 91, and terminates the drying operation by the washer 100. FIG. As a result, a series of operations of the water supply operation, cleaning operation, drainage operation and drying operation by the washer 100 is completed. The series of operations are automatically performed according to the cleaning program set in the control unit 13. FIG. In Embodiment 1, the user can take out the cleaned object 20 after cleaning by pulling out the cleaning tank 2 forward from the housing 1 via the handle 50 .

Next, the operation of the washer 100 according to Embodiment 1 when water leakage occurs will be described. First, when the water leakage detection target amount of water accumulates in the water leakage detection target space, the water leakage detection unit 11 detects water leakage. Then, the water leakage detection unit 11 outputs a water leakage detection signal indicating that water leakage has been detected to the control unit 13 .

The control unit 13 closes the water supply valve 60 when the water leakage detection signal is acquired during the water supply operation of the washing machine 100 . Then, the control unit 13 drives the drain pump 70 to discharge the wash water to the outside.

When the controller 13 acquires the water leakage detection signal during the cleaning operation of the washer 100 , it stops energizing the first heater 61 . Subsequently, the controller 13 stops driving the cleaning pump 62 . Stopping the drive of the cleaning pump 62 may be performed before stopping the power supply to the first heater 61 or in parallel with stopping the power supply to the first heater 61 . The cleaning operation of the cleaning machine 100 is stopped by the control unit 13 stopping power supply to the first heater 61 and stopping the driving of the cleaning pump 62 . The control unit 13 drives the drain pump 70 to discharge the wash water to the outside.

When water leakage is detected, the water leakage detection unit 11 outputs a water leakage detection signal to the control unit 13 even if an operation other than the water supply operation or the cleaning operation is being performed. Then, when receiving the water leakage detection signal from the water leakage detection section 11, the control section 13 controls the drainage pump 70 to discharge the washing water.

When water leakage is detected, the water leakage detection unit 11 sends a water leakage detection signal to the control unit 13 even if the washing machine 100 is not executing any of the above-described water supply operation, cleaning operation, draining operation, and drying operation. to output Then, when receiving the water leakage detection signal from the water leakage detection section 11, the control section 13 controls the drainage pump 70 to discharge the washing water.

When receiving the water leakage detection signal, the control unit 13 causes the notification unit 14 to notify the user of the occurrence of water leakage. The display device, lighting device, or the like may be installed on the front door 5 together with the operation unit 51 .

Next, processing by the washer 100 when the vibration detection unit 12 detects vibration, such as during an earthquake, will be described. In addition, below, the said process may be described as a process at the time of vibration occurrence. The vibration occurrence processing is automatically executed according to a vibration occurrence processing program set in the control unit 13, which is a countermeasure program when vibration occurs.

FIG. 4 is a flowchart exemplifying processing when vibration occurs by the washing machine according to the first embodiment. When the vibration detection unit 12 detects vibration in step S1 in FIG. 4 (step S1: YES), the vibration detection unit 12 outputs a vibration detection signal to the control unit 13 in step S2. Control unit 13 receives a vibration detection signal from vibration detection unit 12 . Note that while the vibration detection unit 12 does not detect vibration in step S1 (step S1: NO), the cleaning machine 100 stops processing at step S1.

Subsequent to step S2, the controller 13 stops the operation of the washing machine 100 in step S3. Here, when the washer 100 is performing the water supply operation, the controller 13 closes the water supply valve 60 to stop the water supply operation by the washer 100 . When the washing machine 100 is performing the washing operation, the control unit 13 stops energizing the first heater 61 and stops driving the washing pump 62 . Further, when the washer 100 is performing the drying operation, the control unit 13 stops energizing the second heater 91 and driving the blower 90 .

In step S<b>4 , the control section 13 outputs a control signal to the water level detection section 10 so as to detect the presence or absence of cleaning water in the cleaning tank 2 . In step S<b>5 , the water level detection unit 10 detects the presence or absence of cleaning water in the cleaning tank 2 according to instructions from the control unit 13 . In this case, the water level detection unit 10 detects that there is washing water in the washing tank 2 when it detects that the washing tank 2 contains the second water level detection target amount of water. Here, the second water level detection target amount is one of the water level detection target amounts described above, and is the water level detection target amount that is set when the washer 100 performs the process when vibration occurs. The second water level detection target amount is, for example, 0 [L]. However, the amount of water to be detected for the second water level may be any amount of water that is equal to or less than the upper limit of the amount of water in the range in which water leakage does not occur from the washer 100 . The water level detection unit 10 detects that there is no washing water in the washing tank 2 when it detects that the washing tank 2 does not contain the second water level detection target amount of water. The water level detection unit 10 outputs to the control unit 13 a water level detection signal corresponding to the detection result indicating the presence or absence of washing water.

When the water level detection unit 10 detects that there is no cleaning water in the cleaning tank 2 in step S5 (step S5: no cleaning water), the control unit 13 terminates the process when vibration occurs in the cleaning machine 100. . When the water level detection unit 10 detects that there is cleaning water in the cleaning tank 2 in step S5 (step S5: there is cleaning water), the control unit 13 drives the drain pump 70 in step S6, The washing water in the washing tank 2 is discharged outside. In step S6, the control unit 13 controls the notification unit 14 to perform notification indicating that the operation of the washing machine 100 has been stopped because there is a possibility of water leakage due to vibration. After step S<b>6 , the control unit 13 terminates the vibration generation process of the washing machine 100 .

In step S5, the water level detection unit 10 outputs to the control unit 13 a water level detection signal indicating the presence or absence of cleaning water in the cleaning tank 2. Instead of such a water level detection signal, the water level detection unit 10 may output a water level detection signal indicating the amount of water in cleaning tank 2 to control unit 13 . Then, the control unit 13 may determine whether or not the amount of water indicated by the water level detection signal is equal to or greater than the second water level detection target amount, and may determine whether or not there is cleaning water in the cleaning tank 2 .

The effect of the washing machine 100 according to Embodiment 1 will be described below. The washing machine 100 according to Embodiment 1 includes a washing tank 2 , a water washing mechanism 6 , a water level detection section 10 , a drainage mechanism 7 , a vibration detection section 12 and a control section 13 . The cleaning tank 2 accommodates an object 20 to be cleaned. The water supply washing mechanism 6 supplies water to the washing tank 2 to wash the object to be washed 20 contained in the washing tank 2 . The water level detector 10 detects the water level inside the cleaning tank 2 . The drainage mechanism 7 drains the water inside the cleaning tank 2 to the outside. Vibration detector 12 detects vibration of washing machine 100 . The control unit 13 controls the water supply cleaning mechanism 6 , the water level detection unit 10 and the drainage mechanism 7 . The control unit 13 controls the water level detection unit 10 to detect the water level in the cleaning tank 2 when the vibration detection unit 12 detects vibration. When the detection result by the water level detector 10 indicates that water is contained inside the cleaning tank 2, the controller 13 controls the drain mechanism 7 to drain the water. Therefore, when there is a possibility of water leakage due to internal damage caused by the occurrence of vibration, the water level detection unit 10 detects the presence or absence of water in the cleaning tank 2, and if there is water, the control unit 13 causes the drainage mechanism 7 to drain the water, so it is possible to prevent water leakage.

The vibration detection unit 12 in Embodiment 1 detects vibrations equal to or greater than a predetermined standard seismic intensity. As a result, the vibration detection unit 12 does not detect vibrations generated when the cleaning tank 2 is taken in and out, or when the object 20 to be cleaned is cleaned. Therefore, the vibration detection unit 12 can transmit a vibration detection signal to the control unit 13 only when there is an earthquake or a strong impact, and there is a risk of damage to internal parts. Therefore, the control unit 13 can cause the washing machine 100 to perform the process for suppressing water leakage at an appropriate timing.

The vibration detection unit 12 in Embodiment 1 is installed at a position below the cleaning tank 2 in the vertical direction. This reduces the possibility that the vibration detection unit 12 detects vibrations that occur when the cleaning tank 2 is put in and taken out, or when the object to be cleaned 20 is cleaned. Therefore, the possibility that the vibration detection unit 12 outputs a vibration detection signal to the control unit 13 due to the insertion/removal of the cleaning tank 2 or the cleaning of the object 20 to be cleaned is reduced. Therefore, the control unit 13 can cause the washing machine 100 to perform processing for suppressing water leakage at a more appropriate timing, such as when an earthquake or a strong impact occurs.

The washing machine 100 according to Embodiment 1 further includes a housing 1 that accommodates the washing tank 2 and the vibration detector 12 . The vibration detection unit 12 is installed at a position above the bottom surface of the housing 1 in the vertical direction. Therefore, even if water leakage occurs before the vibration detection unit 12 detects vibration, the possibility of the vibration detection unit 12 being submerged can be reduced.

The washing machine 100 according to Embodiment 1 further includes a housing 1 that accommodates the washing tank 2 and the vibration detector 12 . The housing 1 has an opening, and the cleaning tank 2 can be taken in and out of the housing 1 through the opening. The vibration detection unit 12 is installed at a position away from the opening with the center of the housing 1 as a reference. Therefore, the possibility that the vibration detection unit 12 outputs a vibration detection signal to the control unit 13 due to the insertion/removal of the cleaning tank 2 or the cleaning of the object 20 to be cleaned is reduced. Therefore, the control unit 13 can cause the washing machine 100 to perform processing for suppressing water leakage at a more appropriate timing, such as when an earthquake or a strong impact occurs.

The control unit 13 in Embodiment 1 stops the operation of the water washing mechanism 6 when the vibration detection unit 12 detects vibration during the operation of the water washing mechanism 6 . Therefore, when vibration occurs, the supply of water to the cleaning tank 2 by the water supply cleaning mechanism 6 is stopped, so that the water in the cleaning tank 2 does not increase. As a result, the washer 100 can prevent further leakage of water from the washing tank 2 .

The washer 100 according to Embodiment 1 further includes a notification unit 14 . When the control unit 13 stops the operation of the water washing mechanism 6 due to the detection of vibration by the vibration detection unit 12, the notification unit 14 receives an instruction from the control unit 13 to stop the operation of the water washing mechanism 6 due to the vibration. Notify by This allows the user of the washer 100 to check the state of the washer 100 .

The water supply cleaning mechanism 6 in Embodiment 1 has a first heater 61 for heating the water inside the cleaning tank 2 . The control unit 13 stops the heating by the first heater 61 when the vibration detection unit 12 detects vibration during the operation of the water supply cleaning mechanism 6 . Thereby, generation of heat in the washing machine 100 can be suppressed.

The washing machine 100 according to Embodiment 1 further includes a drying mechanism 9 . The drying mechanism 9 dries the object 20 to be washed which is housed in the washing tank 2 after being washed. The control unit 13 stops the operation of the drying mechanism 9 when the vibration detection unit 12 detects vibration during the operation of the drying mechanism 9 . As a result, the operation of the washing machine 100 is stopped in a state where there is a risk of component damage due to vibration.

When the control unit 13 stops the operation of the drying mechanism 9 due to detection of vibration by the vibration detection unit 12, the notification unit 14 in the first embodiment notifies the control unit 13 of stopping the operation of the drying mechanism 9 due to the vibration. Notify according to instructions from. This allows the user of the washer 100 to check the state of the washer 100 .

Drying mechanism 9 in Embodiment 1 has blower 90 and second heater 91 . The blower 90 sends air from the outside into the cleaning tank 2 . The second heater 91 heats the air sent by the blower 90 in the air passage 92 connecting the blower 90 and the cleaning tank 2 . The control unit 13 stops the heating by the second heater 91 when the vibration detection unit 12 detects vibration during the operation of the drying mechanism 9 . Thereby, generation of heat in the washing machine 100 can be suppressed.

The washing machine 100 according to Embodiment 1 further includes a water leakage detector 11 . The water leakage detection unit 11 detects the occurrence of water leakage when water leakage from the cleaning tank 2 occurs. The control unit 13 controls the drain mechanism 7 to drain the water supplied by the water supply cleaning mechanism 6 to the outside when the water leakage detection unit 11 detects the occurrence of water leakage. As a result, even if water leakage occurs from the cleaning tank 2 due to reasons such as the vibration detection unit 12 not detecting vibration, it is possible to prevent the leakage from expanding.

Embodiment 2.
FIG. 5 is a cross-sectional view schematically illustrating the internal configuration of a washing machine according to Embodiment 2. FIG. Note that the X direction in FIG. 5 is the horizontal direction when the washer 200 is installed on the installation surface, and corresponds to the front-rear direction of the washer 200 . The direction of the X-axis in FIG. 5 corresponds to the direction from the front side to the rear side of the washing machine 200 . The Y direction in FIG. 5 corresponds to the vertical direction when the washing machine 200 is installed on the installation surface. The direction of the Y-axis is upward. FIG. 6 is a block diagram illustrating an output source and an output destination of a signal according to the second embodiment. Components in Embodiment 2 that are the same as those in Embodiment 1 are denoted by the same reference numerals, and descriptions of these components are omitted unless otherwise specified. .

A washing machine 200 according to Embodiment 2 further includes a communication unit 15 in addition to the constituent elements of the washing machine 100 described above. The communication unit 15 is, for example, a communication device such as an IoT (Internet of Things) terminal that performs wireless communication with an external information terminal device via a network such as an Internet line. The communication unit 15 receives earthquake occurrence information from an external information terminal device when an earthquake occurs. Earthquake occurrence information is information sent to communication devices in areas where earthquake vibrations are expected to reach when an earthquake occurs in the epicenter. It is information for appealing to people in the area.

When receiving the earthquake occurrence information, the communication unit 15 outputs an earthquake occurrence signal indicating that the earthquake occurrence information has been received or an earthquake occurrence signal corresponding to the earthquake occurrence information to the control unit 13 . Based on the earthquake occurrence signal received from the communication unit 15 , the control unit 13 temporarily stops the operation of the washing machine 200 . For example, when the controller 13 receives an earthquake occurrence signal and the washing machine 200 is performing the water supply operation, the controller 13 temporarily closes the water supply valve 60 . When the control unit 13 receives an earthquake occurrence signal and the washing machine 200 is executing the washing operation, the control unit 13 temporarily suspends the energization of the first heater 61 and the driving of the washing pump 62. Stop. Further, when the control unit 13 receives an earthquake occurrence signal and the washing machine 200 is executing the drying operation, the control unit 13 stops energizing the second heater 91 and driving the blower 90. Pause.

The control unit 13 controls the water level detection unit 10 to detect the presence or absence of cleaning water in the cleaning tank 2 while the operation of the cleaning machine 200 is temporarily stopped. When the washing machine 200 is performing the washing operation, the controller 13 temporarily stops the operation of the washing pump 62 , thereby temporarily stopping the injection of washing water from the washing nozzle 65 . As a result, the washing water in the washing tank 2 drops and collects in the lower part of the washing tank 2 such as the recessed area 2a. Therefore, the water level detection unit 10 can accurately detect the presence or absence of washing water in the washing tank 2 .

When the vibration detection unit 12 detects vibration while the operation of the washing machine 200 is temporarily stopped, and when the water level detection unit 10 detects that there is washing water in the washing tank 2 2, the control unit 13 drives the drain pump 70 to discharge the wash water to the outside. Then, the control unit 13 stops the operation of the washing machine 200 . Further, the control unit 13 causes the notification unit 14 to notify that the operation of the washing machine 200 has been stopped due to the possibility of water leakage due to the occurrence of an earthquake.

If the vibration detection unit 12 does not detect vibration while the operation of the washing machine 200 is temporarily stopped, the control unit 13 restarts the operation of the washing machine 200 .

Hereinafter, with reference to FIG. 7, the processing by the washing machine 200 when the washing machine 200 receives the earthquake occurrence information will be described in more detail. In the following, this process may also be referred to as earthquake information reception process. The earthquake information reception processing is automatically executed according to an earthquake information reception processing program set in the control unit 13, which is a program for dealing with the event of receiving earthquake occurrence information. FIG. 7 is a flowchart exemplifying the earthquake information reception processing by the washing machine according to the second embodiment.

In step S11, the communication unit 15 receives earthquake occurrence information. In subsequent step S<b>12 , the communication unit 15 outputs an earthquake occurrence signal to the control unit 13 . In step S<b>13 , the control unit 13 temporarily stops the operation of the washing machine 200 . Note that the suspension time is predetermined, and hereinafter, this time may be referred to as suspension time.

In step S<b>14 , the control unit 13 causes the water level detection unit 10 to detect the presence or absence of cleaning water in the cleaning tank 2 . In step S15, the control unit 13 determines whether or not a vibration detection signal has been received from the vibration detection unit 12 before the suspension time has elapsed. Note that the control unit 13 may have an RTC (Real Time Clock), and may measure time by the RTC. Alternatively, the control unit 13 may measure time through processing by a processor.

If the control unit 13 does not receive the vibration detection signal before the pause time elapses in step S15 (step S15: NO), the control unit 13 restarts the operation of the washer 200 in step S16. After the processing of step S16, the control unit 13 terminates the earthquake information reception processing by the washing machine 200. FIG.

If the control unit 13 receives the vibration detection signal before the suspension time elapses in step S15 (step S15: YES), the control unit 13 controls the water level detection unit 10 in step S17 so that the cleaning tank 2 It is determined whether or not it is detected that there is wash water inside. When the water level detection unit 10 detects that there is no washing water (step S17: NO), the control unit 13 shifts the processing of the washing machine 200 to step S19. If the water level detection unit 10 detects that there is wash water (step S17: YES), the control unit 13 drives the drain pump 70 to drain the wash water in step S18. After the process of step S18, the control unit 13 shifts the process of the washing machine 200 to step S19.

In step S<b>19 , the control unit 13 stops the operation of the washing machine 200 . At this time, the control unit 13 causes the notification unit 14 to notify the stop of the operation. After the process of step S<b>19 , the control unit 13 terminates the external signal reception process of the washing machine 200 .

Effects of the washing machine 200 according to the second embodiment will be described below. The washing machine 200 according to Embodiment 2 further includes a communication unit 15 that performs wireless communication with an external information communication device. When the communication unit 15 receives the earthquake occurrence information from the information communication device while the water supply cleaning mechanism 6 is operating, the control unit 13 temporarily stops the operation of the water supply cleaning mechanism 6 . As a result, the washer 200 can further reduce the possibility of water leakage when there is a risk of an earthquake.

The control unit 13 in the second embodiment temporarily stops the operation of the water supply washing mechanism 6, and when the vibration detection unit 12 does not detect the vibration during the period until the temporary stop time elapses, , the operation of the water supply cleaning mechanism 6 is resumed. As a result, even though the effect of suppressing water leakage is enhanced, if an earthquake does not occur in the area where the washer 200 is installed, the operation of the washer 200 is continued, so the convenience of the washer 200 is improved. improves.

The washing machine 200 according to Embodiment 2 further includes a communication unit 15 that performs wireless communication with an external information communication device. The control unit 13 temporarily stops the operation of the drying mechanism 9 when the communication unit 15 receives the earthquake occurrence information from the information communication device while the drying mechanism 9 is operating. Thereby, the control unit 13 can stop the operation of the washing machine 200 when there is a risk of damage to parts due to an earthquake.

The control unit 13 according to the second embodiment stops the operation of the drying mechanism 9 until the temporary stop time elapses when the vibration detection unit 12 detects no vibration. The operation of the mechanism 9 is resumed. As a result, if an earthquake does not occur in the area where the washer 200 is installed, the operation of the washer 200 is continued, so the convenience of the washer 200 is improved.

Embodiment 3.
FIG. 8 is a cross-sectional view schematically illustrating an internal configuration of a washing machine according to Embodiment 3. FIG. Note that the X direction in FIG. 8 is the horizontal direction when the washer 300 is installed on the installation surface, and corresponds to the front-rear direction of the washer 300 . The direction of the X-axis in FIG. 8 corresponds to the direction from the front side to the rear side of the washer 300 . The Y direction in FIG. 8 corresponds to the vertical direction when the washing machine 300 is installed on the installation surface. The direction of the Y-axis is upward. Components in Embodiment 3 that are the same as those in Embodiments 1 and 2 are denoted by the same reference numerals, and unless otherwise specified, , the description is omitted.

The washing machine 300 according to Embodiment 3 further includes a standby power supply 16 in addition to the constituent elements of the washing machine 100 or washing machine 200 described above. Standby power supply 16 is an internal power supply that can be charged from an external power supply while washing machine 300 is powered on, such as when washing machine 300 is in operation or on standby. Standby power supply 16 alone has power supply capacity required for operation of control unit 13, drain pump 70, water level detection unit 10, water leakage detection unit 11, and vibration detection unit 12, at least during charging. Note that the power supply capacity refers to the maximum amount of power that can be supplied.

Even if a power failure occurs during the operation of the washing machine 300 and an earthquake or a collision accident of the washing machine 300 occurs, the washing machine 300 is powered by the standby power supply 16 as described above with reference to FIG. An operation when vibration occurs can be executed. Therefore, even if the power supply from the outside is cut off, if vibration is detected while there is water in the washing tank 2, the washing machine 300 drains the water. It is possible to prevent it before it happens and to suppress the expansion of water leakage.

Effects of the washing machine 300 according to the third embodiment will be described below. Washing machine 300 according to Embodiment 3 further includes standby power supply 16 . The standby power supply 16 supplies power to the control unit 13, the vibration detection unit 12, the water level detection unit 10, and the drainage mechanism 7 when the power supply from the outside is interrupted. As a result, even if the power supply from the outside is cut off, if vibration due to an earthquake or a collision is detected while there is water inside the cleaning tank 2, the control unit 13 causes the drain mechanism 7 to drain the water. Since the treatment is performed, the washer 300 can suppress water leakage.

1 housing 1a bottom plate 2 cleaning tank 2a recessed area 2b recessed bottom surface 3 rail mechanism 4 holding mechanism 5 front door 6 water supply cleaning mechanism 7 drainage mechanism 8 lower cover 9 drying mechanism 10 water level detection unit 11 water leakage detection unit 12 vibration detection unit 13 control unit 14 notification unit 15 communication unit 16 standby power supply 20 object to be cleaned 21 basket 22 inner lid 50 handle unit 51 operation unit, 51A power switch, 51B operation switch, 52 exhaust port, 60 water supply valve, 61 first heater, 62 washing pump, 63 first water supply pipe, 64 second water supply pipe, 65 washing nozzle, 70 drainage pump, 71 drainage pipe, 90 Blower, 91 second heater, 92 air passage, 100, 200, 300 washer.

Claims (17)

A washing machine for washing an object to be washed,
a cleaning tank containing the object to be cleaned;
a water supply washing mechanism for supplying water to the washing tank to wash the object to be washed contained in the washing tank;
a water level detection unit that detects the water level inside the cleaning tank;
a drainage mechanism for discharging the water inside the cleaning tank to the outside;
a vibration detection unit that detects vibration of the washing machine;
a control unit that controls the water supply cleaning mechanism, the water level detection unit, and the drainage mechanism;
with
The control unit
When the vibration detection unit detects the vibration, the water level detection unit is controlled to detect the water level, and the detection result by the water level detection unit indicates that the water is contained in the cleaning tank. When indicating that, controlling the drainage mechanism to drain the water ,
The vibration detection unit is
A washing machine which is installed separately from the washing tank at a position below the washing tank in the vertical direction, and which detects the vibration during a time including the time when the water supply washing mechanism is in operation. The vibration detection unit is
2. The washing machine according to claim 1, wherein said vibration equal to or greater than a predetermined standard seismic intensity is detected. further comprising a housing that houses the cleaning tank and the vibration detection unit;
The vibration detection unit is
The washing machine according to claim 2 , which is installed at a position above the bottom surface of the housing in the vertical direction. The housing is
an opening is formed,
The cleaning tank is
can be put in and taken out of the housing through the opening,
The vibration detection unit is
The washing machine according to claim 3 , which is installed at a position away from the opening with respect to the center of the housing. further comprising a housing that houses the cleaning tank and the vibration detection unit;
The housing is
an opening is formed,
The cleaning tank is
can be put in and taken out of the housing through the opening,
The vibration detection unit is
The washing machine according to claim 1 or 2 , wherein the washing machine is installed at a position away from the opening with respect to the center of the housing. The control unit
The washing machine according to any one of claims 1 to 5 , wherein the operation of the water washing mechanism is stopped when the vibration detector detects the vibration during operation of the water washing mechanism. When the control unit stops the operation of the water washing mechanism due to the detection of the vibration by the vibration detection unit, the stop of the operation of the water washing mechanism due to the vibration is notified by an instruction from the control unit. 7. The washing machine according to claim 6 , further comprising a notification part. The water supply washing mechanism is
a first heater for heating the water inside the cleaning tank;
The control unit
The washing machine according to any one of claims 1 to 7 , wherein heating by the first heater is stopped when the vibration detection unit detects the vibration during operation of the water supply washing mechanism. further comprising a drying mechanism for drying the object to be washed after washing the object to be washed contained in the washing tank;
The control unit
The washing machine according to any one of claims 1 to 5 , wherein the operation of the drying mechanism is stopped when the vibration detection unit detects the vibration during the operation of the drying mechanism. A notification unit that, when the control unit stops the operation of the drying mechanism due to the detection of the vibration by the vibration detection unit, notifies the stop of the operation of the drying mechanism due to the vibration according to an instruction from the control unit. 10. The washer of claim 9 , further comprising: The drying mechanism is
a blower for sending air from the outside into the cleaning tank;
a second heater for heating the air sent by the blower in an air passage connecting the blower and the cleaning tank;
has
The control unit
The washing machine according to claim 9 or 10 , wherein heating by said second heater is stopped when said vibration detector detects said vibration during operation of said drying mechanism. further comprising a communication unit that performs wireless communication with an external information communication device,
The control unit
9. The operation of the water washing mechanism is temporarily stopped when the communication unit receives earthquake occurrence information from the information communication device during operation of the water washing mechanism. 1. The washing machine according to item 1. The control unit
When the vibration detection unit does not detect the vibration during the period from when the operation of the water washing mechanism is temporarily stopped until the suspension time elapses, the operation of the water washing mechanism is restarted. 13. A washing machine according to claim 12 . further comprising a communication unit that performs wireless communication with an external information communication device,
The control unit
Any one of claims 9 to 11 , wherein when the communication unit receives earthquake occurrence information from the information communication device during operation of the drying mechanism, the operation of the drying mechanism is temporarily stopped. washing machine described in . The control unit
after the operation of the drying mechanism is temporarily stopped until the suspension time elapses, the operation of the drying mechanism is restarted if the vibration detection unit does not detect the vibration. Item 15. The washing machine according to Item 14 . 16. The apparatus according to any one of claims 1 to 15 , further comprising a standby power supply that supplies power to the control unit, the vibration detection unit, the water level detection unit, and the drainage mechanism when power supply from the outside is interrupted. 1. The washing machine according to item 1. Further comprising a water leakage detection unit that detects the occurrence of water leakage when water leakage from the cleaning tank occurs,
The control unit
17. The water leakage detector according to any one of claims 1 to 16 , wherein when the water leakage detection unit detects the occurrence of the water leakage, the water drainage mechanism is controlled to discharge the water supplied by the water supply cleaning mechanism to the outside. 1. The washing machine according to item 1.

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