JP2010172640A - Drum type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type washing machine having such configuration is capable of detecting water leak, preventing further spreading disaster by water leak, and informing the user of occurrence of abnormality. <P>SOLUTION: The drum type washing machine includes a water leak detector 14 disposed for detecting water leak in the washing machine body provided in the bottom plate of the washing machine body, and a control part 12 stopping operation (water feeding or rotation of rotary drum) and notices abnormality when water leak is detected by the water leak detector 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a drum type washing machine.

  FIG. 3 shows a conventional washing machine described in Patent Document 1. In FIG. As shown in FIG. 3, reference numeral 101 denotes a waterproof pan that has a drainage port and can be drained by inserting a drainage hose of a washing machine into the drainage port. Reference numeral 102 denotes an outer box of the electric washing machine, which is a frame of the electric washing machine that encloses the periphery of the internal mechanism. The outer box 102 has an opening 103 at the bottom, and communicates with the inside of the waterproof pan 101 through the opening 103. Inside the outer box 102, a tank 106 composed of an outer tank 104 and an inner tank 105, in particular, the outer tank 104 is supported and arranged by a plurality of sets (only one set shown) of elastic suspension mechanisms 107. Yes. Each of the elastic suspension mechanisms 107 includes a suspension rod 108 and a spring 109. The elastic suspension mechanism 107 allows the tank 106 to swing and allows the descent according to the weight of the contents of the tank 106. ing. In the inner tank 105, a stirring body 110 is disposed at the bottom, and in the outer tank 104, support plates 112 are respectively attached to a plurality of bosses 111 at the outer lower part by screws 113. A motor 114, a mechanism unit 115, and a water level detection device 116 are attached to the support plate 112. The signal from the water level detection device 116 is input to the control device 130.

From the above configuration, the water remaining due to clogging of the indoor drain pipe from the drain outlet of the waterproof pan 101 or the water due to water leakage from the inside of the washing machine accumulates in the waterproof pan 101 and gradually raises the water level. Go. The water level detection device 116 detects the water level and sends a signal to the control device 130. Based on the input signal from the water level detection device 116, the control device 130 stops the operation (stops the drainage) and notifies the abnormality.
Japanese Patent Laid-Open No. 7-685

  However, in the above-described conventional configuration, for example, in a place where a kitchen is installed side by side with a drum-type washing machine (such as a one-room apartment kitchen) or in a bathroom, a waterproof pan is used. In the case where the environment cannot be installed, the water level cannot be collected, so that the water level may not be detected. In addition, water leaking from the inside of the washing machine may drop on the floor surface, causing damage such as wetting or rotting of the floor surface. In addition, even if you install a part to collect water in place of the waterproof pan, if you stop the drainage with water in the tank when the water level (water leakage) is detected, the tank will be damaged. In the case of a water leak, there is a problem that the water leak continues and eventually the water may overflow.

  The present invention solves the above-described conventional problems, and a water leakage detection means for detecting water leakage into the main body is disposed on the bottom plate of the washing machine, and the control means detects water leakage when the water leakage detection means detects water leakage. Immediately stop operation (water supply, drum rotation, etc.), drain the water in the water receiving tub, and notify the abnormality by detecting any water leakage inside the washing machine. It is an object of the present invention to provide a washing machine that can prevent the occurrence of water leakage and can safely notify the user of the occurrence of an abnormality without causing water leakage from the washing machine body to the outside.

In order to solve the above-described conventional problems, a washing machine of the present invention includes a rotating drum having a horizontal or oblique rotation center axis, and a water receiver that is elastically supported by the washing machine body and includes the rotating drum rotatably. A tank, a motor for rotating the rotating drum, a water supply means for supplying tap water into the water receiving tank, a water level detecting means for detecting the water level in the water receiving tank, and a washing in the water receiving tank Drainage means for draining water, input setting / display means for setting a series of process contents such as washing, rinsing and dehydration, water leakage detecting means for detecting water leakage into the main body of the bottom plate of the washing machine, Control means for controlling the motor, the water supply means, the water level detection means, the drainage means and the like based on the content of the stroke set by the input setting / display means, and performing a washing operation, The detection means When knowledge, to stop the operation immediately, so that the abnormality notification.

  As a result, any water leak inside the washing machine can be detected, preventing further damage from the water leak, and notifying the user of the occurrence of the abnormality safely without leaking water from the washing machine body to the outside. Can do.

  In the washing machine of the present invention, a water leakage detection means for detecting water leakage into the main body is disposed on the bottom plate of the washing machine, and the control means immediately starts operation (water supply and drum) when the water leakage detection means detects water leakage. Rotation etc. can be stopped, and any water leak inside the washing machine can be detected by notifying abnormality, preventing further damage from water leakage, and without causing water leaking from the washing machine body to the outside. It is possible to inform the user of the occurrence of abnormality safely.

  A first invention includes a rotating drum having a horizontal or oblique rotation center axis, a water receiving tub that is elastically supported by a washing machine body and encloses the rotating drum, and a motor that rotationally drives the rotating drum. Water supply means for supplying tap water into the water receiving tank, water level detecting means for detecting the water level in the water receiving tank, drainage means for draining the washing water in the water receiving tank, washing, Input setting / display means for setting the contents of a series of processes such as rinsing and dehydration, water leakage detecting means for detecting water leakage into the main body of the bottom plate of the washing machine, and the process set by the input setting / display means Control means for controlling the motor, the water supply means, the water level detection means, the drainage means and the like based on the contents, and the control means, when the water leakage detection means detects water leakage, Immediately stop operation In addition, by notifying the abnormality, any water leak inside the washing machine can be detected, and further damage from the water leak can be prevented, and it is safe for the user without leaking water from the washing machine body to the outside. The occurrence of an abnormality can be notified.

  According to a second invention, in the first invention, a heating means provided below the rotating drum for heating the water supplied into the water receiving tank, and a water temperature disposed in the vicinity of the previous heating means are detected. And when the water leakage detecting means detects a water leak during operation with high temperature water using the heating means, the operation is immediately stopped and the water supply means has failed. If the water temperature falls below a predetermined temperature due to cooling by the stirring operation, the water in the water receiving tank is drained and an abnormality is notified, so that even if the water supply means has failed, It is possible to cool hot water and clothes in the receiving tank, drain water safely, and notify the user of the occurrence of an abnormality.

  According to a third invention, in the first invention, a heating means provided below the rotating drum for heating the water supplied into the water receiving tank, and a water temperature disposed in the vicinity of the previous heating means are detected. When the water leakage detection means detects water leakage during operation with high-temperature water using the heating means, the operation is stopped immediately, and the motor has failed. When the water temperature falls below a predetermined temperature due to cooling by performing a water supply operation, the water in the water receiving tank is drained and an abnormality is notified, so that even if the motor is broken, the water receiving tank It is possible to cool the hot water and clothes inside, drain the water safely, and inform the user of the occurrence of an abnormality.

  According to a fourth invention, in the first invention, a heating means provided below the rotating drum for warming the water supplied into the water receiving tank, and a water temperature disposed in the vicinity of the previous heating means are detected. When the water leakage detecting means detects a water leak during operation with high temperature water using the heating means, the operation is immediately stopped and the drainage means has failed. In this case, the water temperature is set to a predetermined temperature or less by cooling by water supply operation and stirring operation, and even if the drainage means has failed, the hot water and clothes in the water receiving tub can be removed. It can cool and inform the user of the occurrence of an abnormality.

  5th invention is 2nd or 3rd invention. WHEREIN: When draining the water in the said water receiving tank with water temperature below predetermined temperature, it is in the middle of the drainage path from the bottom part of the said water receiving tank. Even if the detachable lint collection means provided in the middle of the drainage path is disconnected by stopping the operation of the load and notifying the abnormality when the detachable lint collection means provided is detached It is possible to notify the user of the occurrence of an abnormality without cooling high-temperature water and clothes in the water receiving tank and without causing water leakage from the lint collecting means attaching / detaching portion.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
As shown in FIG. 1, the rotating drum 1 is rotatably disposed in the water receiving tank 2, and a rotating shaft (rotating center shaft) 3 is provided in a substantially inclined direction at the rotating center of the rotating drum 1 to rotate. The drum 1 is arranged such that the axial direction of the drum 1 is inclined downward from the front side toward the back side. A motor 4 attached to the back surface of the water receiving tank 2 is connected to the rotating shaft 3 to rotate the rotating drum 1 in the normal direction and the reverse direction.

  An opening provided on the upward inclined surface on the front side of the water receiving tub 2 is covered with a lid 5 so as to be freely opened and closed, and the laundry can be taken in and out of the rotary drum 1 by opening the lid 5. Since the lid 5 is provided on the upward inclined surface, the laundry can be carried out without bending the waist.

  The water receiving tub 2 is swingably supported by the spring body 7 and the damper 8 from the washing machine main body 6 so as to be supported by vibration proofing. The lint collecting means 24 can be attached and detached in the middle of the drainage path from the bottom of the water receiving tub 2. The drainage means 9 is disposed to drain the washing water in the water receiving tank 2.

  The water supply means 10 supplies tap water into the water receiving tank 2. The water level detection means 11 detects the water level in the water receiving tank 2.

  In the present embodiment, the rotation shaft 3 is provided in a substantially inclined direction at the rotation center of the rotary drum 1, and the axial center direction of the rotary drum 1 is inclined downward from the front side to the back side. However, the rotating shaft 3 may be provided in the substantially horizontal direction at the rotation center of the rotating drum 1, and the axial center direction of the rotating drum 1 may be disposed in the substantially horizontal direction.

  The control means 12 is disposed below the washing machine body 6 and the input setting / display means 13 is disposed on the upper front surface.

  When the operation is started based on the information from the input setting / display means 13, the control means 12 controls the operation of the motor 4, the drainage means 9, the water supply means 10, the water level detection means 11, and the like. , Rinse, dehydrate, etc.

  Examples of the drain means 9 include a drain valve, but a drain pump may be used. Both may be used. What is necessary is just to set it as the combination according to the environment where a washing machine is used.

  The bottom plate at the lower part of the washing machine main body 6 is provided with a water leakage detection means 14 at a position optimal for detecting water leakage. This water leak detection means 14 is comprised by two electrodes, for example, and it is comprised so that a water leak may be detected with the electrical potential difference between this electrode. That is, when leaked water adheres between the electrodes, there is no potential difference, and water leak can be detected.

  FIG. 2 is a partial block diagram of a drum-type washing machine. The control circuit 15 includes a control means 12 constituted by a microcomputer, an input circuit 16, a motor drive circuit 17, and a switching means drive circuit 18. The control means 12 sends various display signals to the input setting / display means 13. While outputting, the rotation control of the motor 4 is performed via the motor drive circuit. Further, the switching means 19 is controlled via the switching means drive circuit 18 to control the operation of the water supply means 10, the drain means 9, the lid lock device 20, and the like. The lid lock device 20 prohibits the opening and closing of the lid 5 that covers the opening serving as a clothing inlet provided in the water receiving tub 2 during operation, and is constituted by a solenoid and a lever. Further, various operation signals from the input setting / display unit 13 are input to the control unit 12, and detection signals from the water level detection unit 11 and the water leakage detection unit 14 and the lint collection are input via the input circuit 16. A detection signal that indicates the attachment / detachment state of the means is input.

  About the washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  After the lid body 5 is opened, the laundry is put into the rotary drum 1 and the lid body 5 is closed, the content of the stroke is set by the input setting / display means 13 and the operation is started. The control means 12 sets an optimal water level according to the amount of laundry and controls the water supply means 10 to supply water into the rotary drum 1 and the water receiving tub 2. Then, when the water level is detected by the water level detection means 11 and reaches the set water level, the water supply is terminated, the motor 4 is controlled, the rotating drum 1 is rotated, and the washing process is performed. After the washing process is completed, the draining means 9 is controlled to drain the washing water. At this time, the lint is recovered by the washing water passing through the lint recovery means 24. The same applies to drainage during the rinsing process or before the dehydration process. After dehydration, the water supply means 10 is controlled again to supply water into the rotary drum 1 and the water receiving tank 2. Then, when the water level is detected by the water level detection means 11 and reaches the set water level, the water supply is terminated, the motor 4 is controlled, the rotating drum 1 is rotated, and the rinsing process is performed. After the rinsing process is completed, the draining means 9 is controlled to drain the water after rinsing, the final dehydration is performed, and the operation is terminated. The control unit 12 constantly monitors the input signal from the water leakage detection unit 14 from the start of operation until the operation is terminated and the power is turned off, including the initial standby after the power switch is pressed. For example, water leaked due to cracks or breakage of the water receiving tank 2 or the water supply means 10, or a pressure hose with a water supply valve (this has a double structure, a water supply hose, a water supply hose and an outer side Wiring for controlling the water supply valve on the faucet side passes between the coatings of the water.If there is a crack in the water supply hose, the leaked water goes through the outer coating, If water leaks due to cracks in the inside of the washing machine, the leaked water drops on the bottom plate and flows into the portion 21 of the throttle shape provided on the bottom plate, to the portion where the leakage detection means 14 is disposed. Water accumulates. When the detection signal of the water leakage state comes in, the control means 12 immediately stops water supply and drum rotation, and after draining, notifies abnormality.

  In addition, the position of the water leakage detection means 14 may be disposed not only on the bottom plate but at an optimal position in accordance with the state of each product. Further, even if the input signal from the water leakage detection means 14 is not always monitored, the input signal may be monitored at an optimal timing as long as water leakage can be reliably detected.

  Further, the diaphragm shape 21 of the bottom plate may be an optimum shape so that water easily collects in an intended place according to the state of each product. Further, if necessary, a guide-like throttle may be provided on the side surface so that water can easily flow in, not limited to the bottom plate.

  In this way, the water leakage detection means 14 for detecting water leakage into the inside of the main body is disposed on the bottom plate of the washing machine, and the control means 12 immediately starts operation (water supply and drum) when the water leakage detection means 14 detects water leakage. Rotation, etc.) is stopped, water in the water receiving tank 2 is drained, and an abnormality is notified, so that any water leak into the washing machine can be detected. While preventing expansion, it is possible to safely notify the user of the occurrence of an abnormality without causing water leakage from the washing machine body.

(Embodiment 2)
As shown in FIGS. 1 and 2, heating means 22 for warming water supplied into the water receiving tank 2 is provided below the rotating drum 1, and the control means 12 operates the heating means 22. I have control. Further, a temperature detection means 23 for detecting the temperature of the heated water is provided in the vicinity of the heating means 22, and the detected signal is input to the control means 12 via the input circuit 16. Other configurations are the same as those of the first embodiment.

  In the above configuration, after the laundry is put in, the content of the process of washing with warm water is set by the input setting / display means 13, and the operation is started. The control means 12 controls the water supply means 10 to supply water into the rotary drum 1 and the water receiving tank 2. Then, when the water level is detected by the water level detection means 11 and reaches the set water level, the water supply is terminated, the motor 4 is controlled, the rotating drum 1 is rotated, and the washing process is performed. During the washing process, the control means 12 controls the heating means 22 based on the detection signal from the temperature detection means 23 so that the set water temperature is reached. During the washing process with such high-temperature water, when the water leakage detection means 14 detects water leakage, if the high-temperature washing water is drained as it is, there is a risk of burns depending on the installation environment of the washing machine. In other words, if a washing machine is installed in a bathroom, etc., and the drainage hose is used without being inserted into the drainage outlet, the drained hot washing water will flow into the bathroom and may cause burns. is there. Therefore, when a water leak is detected during the washing process with warm water, the operation is immediately stopped, water supply and agitation are performed, and the washing water is cooled to a predetermined temperature or lower and then drained.

  However, when the water supply means 10 has failed, the motor 4 is controlled to cool the high-temperature water or clothes by performing the stirring operation, and the water temperature is below a predetermined temperature by the detection signal from the temperature detection means 23. When it becomes, the water in the water receiving tank 2 is drained, the lid lock is released, and the abnormality is notified.

  The determination of the water temperature of the washing water may be an optimal determination condition such as a temperature lower than a predetermined temperature.

  In this way, during the washing operation with high-temperature water, when the water leakage detection means 14 detects a water leak, the operation is immediately stopped, and if the water supply means 10 is out of order, the cooling by performing the stirring operation When the water temperature falls below the specified temperature, drain the water in the water receiving tank 2 and perform an abnormal notification to drain the body safely without causing damage to the body such as burns. And the occurrence of an abnormality can be notified.

(Embodiment 3)
The configuration is the same as in the first or second embodiment.

In the above configuration, when the water leakage detection means 14 detects water leakage during the washing process with high-temperature water, if the motor 4 has failed, the water supply means 10 is controlled to supply water and perform a water supply operation. If the water temperature falls below a predetermined temperature according to the detection signal from the temperature detecting means 23, the water in the water receiving tank 2 is drained, the lid lock is released, and an abnormality is notified. Like to do.

  In this way, during the washing operation with high-temperature water, when the water leakage detection means 14 detects water leakage, the operation is immediately stopped, and if the motor 4 has failed, cooling by performing a water supply operation is performed. When the water temperature falls below the specified temperature, drain the water in the water receiving tank 2 and notify the abnormality to safely drain the body without causing damage to the body such as burns. It is possible to notify the occurrence of an abnormality.

(Embodiment 4)
The configuration is the same as in the first to third embodiments.

  In the above configuration, if the drainage means 9 is out of order when the water leakage detection means 14 detects a water leak during the washing process with high temperature water, the motor 4 and the water supply means 10 are controlled to supply and agitate the water. The high temperature water and clothing are cooled by performing the water supply operation and the stirring operation. When the water temperature becomes a predetermined temperature or less by the detection signal from the temperature detection means 23, the lid lock 20 is released and an abnormality notification is issued. Like to do.

  As described above, during the washing operation with high temperature water, when the water leakage detection means 14 detects water leakage, the operation is immediately stopped, and when the drainage means 9 is out of order, the water supply operation and the stirring operation are performed. When the water temperature falls below a predetermined temperature due to cooling, the lid lock 20 is released, and an abnormality is notified to cause damage to the body such as burns when the lid body 5 is opened after the lid lock 20 is released. Can be notified of the occurrence of abnormality without giving the user.

(Embodiment 5)
The configuration is the same as in the first to fourth embodiments.

  In the above-described configuration, when the water leakage detection means 14 detects water leakage during the washing process with high-temperature water, the motor 4 and the water supply means 10 are controlled to supply water and agitate to perform the water supply operation and the agitation operation. If the detachable lint collecting means 24 is removed when draining the water in the water receiving tank 2 by cooling the hot water or clothing to a predetermined temperature or less, the load operation is stopped. Anomaly notification is performed. After that, when the lint collecting means 24 is mounted by the user, the motor 4 and the water supply means 10 are continuously controlled to supply and agitate the water so that the water temperature is not more than a predetermined temperature. Is drained, the lid lock 20 is released, and abnormality notification is performed.

  In this way, during the washing operation with high-temperature water, the water leakage detection means 14 detects water leakage, cooling the water supply operation and the agitation operation to bring the water temperature to a predetermined temperature or less, and in the water receiving tank 2 When the detachable lint collecting means 24 provided in the middle of the drainage path is removed when draining the water, the load operation is stopped, and an abnormality is notified to provide it in the middle of the drainage path. Even if the attached detachable lint collecting means 24 is detached, it is possible for the user to cool the hot water and clothes in the water receiving tub 2 without causing water leakage from the lint collecting means 24 attaching / detaching portion. The occurrence can be notified. In addition, after the lint collecting means 24 is mounted, the body can be safely drained without causing damage to the body such as burns, and an abnormality can be notified.

As described above, the washing machine according to the present invention is provided with the water leakage detection means for detecting water leakage into the main body on the bottom plate of the washing machine, and the control means detects when the water leakage detection means detects water leakage. Immediately stop operation (water supply, drum rotation, etc.), drain the water in the water receiving tub, and notify the abnormality by detecting any water leakage inside the washing machine. Therefore, it is possible to notify the user of the occurrence of an abnormality without leaking water from the washing machine main body to the outside, so that the present invention can be used for a washing dryer having a drying function.

Sectional drawing of the drum type washing machine in Embodiment 1 of this invention A circuit diagram of the drum-type washing machine in partial block form Cross section of a conventional washing machine

DESCRIPTION OF SYMBOLS 1 Rotating drum 2 Water receiving tank 4 Motor 9 Drainage means 10 Water supply means 11 Water level detection means 12 Control means 13 Input setting / display means 14 Water leakage detection means

Claims (5)

A rotating drum having a horizontal or oblique rotation center axis; a water receiving tub that is elastically supported by a washing machine body and rotatably includes the rotating drum; a motor that rotationally drives the rotating drum; and the water receiving tub A series of water supply means for supplying tap water, water level detection means for detecting the water level in the water receiving tank, drainage means for draining washing water in the water receiving tank, washing, rinsing, dehydration, etc. Based on the content of the stroke set by the input setting / display means, the water leakage detection means for detecting water leakage into the main body of the washing machine bottom plate, and the stroke setting set by the input setting / display means And a control means for controlling the motor, the water supply means, the water level detection means, the drainage means and the like to perform a washing operation, and the control means immediately stops the operation when the water leakage detection means detects a water leak. , Abnormal The drum-type washing machine to carry out the knowledge. A heating unit provided below the rotating drum for heating the water supplied into the water receiving tank; and a temperature detecting unit for detecting a water temperature disposed in the vicinity of the heating unit, the heating unit comprising: When the water leakage detection means detects water leakage during operation with high-temperature water used, the operation is immediately stopped, and if the water supply means has failed, the water temperature is reduced by cooling by stirring operation. The drum type washing machine according to claim 1, wherein when the temperature becomes a predetermined temperature or less, the water in the water receiving tub is drained to notify the abnormality. A heating unit provided below the rotating drum for heating the water supplied into the water receiving tank; and a temperature detecting unit for detecting a water temperature disposed in the vicinity of the heating unit, the heating unit comprising: When the water leakage detecting means detects water leakage during operation with high-temperature water used, the operation is immediately stopped, and if the motor is broken, the water temperature is reduced by cooling by water supply operation. The drum-type washing machine according to claim 1, wherein when the temperature falls below a predetermined temperature, the water in the water receiving tub is drained to report an abnormality. A heating unit provided below the rotating drum for heating the water supplied into the water receiving tank; and a temperature detecting unit for detecting a water temperature disposed in the vicinity of the heating unit, the heating unit comprising: During operation with high-temperature water used, when the water leakage detection means detects water leakage, the operation is immediately stopped, and if the drainage means is out of order, cooling by performing a water supply operation and a stirring operation The drum-type washing machine according to claim 1, wherein the water temperature is set to a predetermined temperature or less to notify abnormality. When the water temperature is set to a predetermined temperature or less and the water in the water receiving tank is drained, the removable lint collecting means provided in the middle of the drainage path from the bottom of the water receiving tank is removed. The drum type washing machine according to claim 2 or 3, wherein operation of the load is stopped and abnormality notification is performed.