KR100474954B1 - Drum-type washer - Google Patents

Abstract

An object of the present invention is to provide a drum type washing machine with improved cleaning power.

The electrolytic apparatus 60 for electrolyzing the water stored in the outer tub 2 is attached to the peripheral surface wall 21 of the outer tub 2 from the outside. Water in the outer tub 2 flows into the electrolytic cell 62 via the inlet pipe 64A and the connecting pipe 63A, and is electrolyzed by the plurality of electrode plates 61, and then the connecting pipe 63B and the outlet pipe. It returns to the outer tub 2 via 64B.

Active oxygen (O ₂ ⁻ ), hypochlorous acid (HClO), or the like having a bactericidal effect is produced.

Description

Drum Washing Machine {DRUM-TYPE WASHER}

The present invention relates to a drum type washing machine for storing laundry in a drum.

BACKGROUND ART Conventionally, for example, there is a drum type washing machine in which laundry is stored in a cylindrical drum for washing. A washing machine of this kind has, for example, an outer tub that surrounds the outside of the drum, and by rotating the drum in a state where a predetermined amount of water is stored in the outer tub, the laundry in the drum is lifted by a baffle that protrudes into the drum inner surface. The washing is carried out by repeating the operation such as lifting up naturally from a certain height toward the surface of the water.

Conventionally, the drum type washing machine with higher cleaning power was calculated | required.

The present invention has been made on the basis of this background, and an object of the present invention is to provide a drum type washing machine with improved cleaning power.

The invention according to claim 1 for achieving the above object is an outer tub 2 capable of storing water at the time of washing, and a drum 4 as an inner tub installed in the outer tub for accommodating laundry, and is approximately in a horizontal direction or a horizontal direction. A drum type washing machine including a drum rotatable about a rotation axis (51L, 51R) set within a predetermined angle range with respect to the storage tank, so that the water stored in the outer tank can be electrolyzed when the water is stored in the outer tank. An electrolytic device (60, 160) having electrode plates (61, 161) provided at a position immersed in water is provided with a drum type washing machine.

In addition, the alphabet and the number in parentheses represent corresponding components, etc. in embodiment mentioned later. Hereinafter, the same in this section.

According to this configuration, since the electrolytic apparatus is arranged at the position where the electrode plate is immersed in the water (tap water) stored in the outer tank, water and chlorine, which are components of the tap water, react chemically to activate oxygen (O ₂ ⁻ ) or hypochlorous acid (HClO). Etc. are generated. By the action of these products, contamination from laundry can be prevented from adhering to the laundry again during washing, and the laundry can be sterilized by the sterilizing effect during rinsing. Therefore, cleaning power can be improved.

The invention according to claim 2, wherein the drum has a peripheral wall (42) capable of rotating about the rotating shaft, and the electrolytic device (60) includes the electrode plate (61) and an electrolytic cell (62) for receiving it. The electrolytic cell is a drum type washing machine according to claim 1, which is attached at a position opposite to the peripheral wall of the drum.

According to this configuration, since the electrolytic cell is provided opposite the peripheral wall of the drum, water in the outer tank flowing with the rotation of the drum smoothly enters the electrolytic cell. Therefore, since electrolysis is promoted, cleaning power can be improved.

Invention of Claim 3 communicates with the said electrolytic apparatus 60, the inlet 63A which the electrolytic cell communicates with an outer tank, and the water stored in an outer tank can invade into an electrolytic cell, and the electrolytic cell communicates with an outer tank, The drum type washing machine of Claim 2 is provided with the exit 63B for returning to the said furnace, The said inlet and an exit are provided in the state which has a height difference.

According to this configuration, since the flow of water in the outer tub that flows with the rotation of the drum is different in the vicinity of the inlet and the outlet, it is possible to improve the flow of the water in the electrolytic apparatus. Therefore, electrolysis is promoted and the cleaning power is improved.

In addition, since the water in the electrolytic apparatus flows from the high outlet side to the low inlet side during drainage, it is possible to prevent the water from being stored in the electrolytic apparatus. Therefore, corrosion of an electrode plate can be prevented and durability can be improved.

As in the invention described in claim 4, the inlet 63A is arranged to be at a position lower than the water level stored in the outer tub, and the outlet 63B is arranged to be at a position higher than the water level stored in the outer tub. You may be.

In addition, as in the invention described in claim 5, the inlet 63A and the outlet 63B are arranged so as to be at a position lower than the water level stored in the outer tank, respectively, so that water flows more smoothly through the electrolytic apparatus. Electrolysis is accelerated and cleaning power is improved.

The invention according to claim 6 is the drum type washing machine according to any one of claims 3 to 5, wherein the inlet 63A faces the tangential direction of the peripheral wall of the drum.

According to this configuration, since the inlet faces the tangential direction of the peripheral wall, water in the outer tub flowing with the rotation of the drum is likely to enter the inlet. Therefore, since water enters into an electrolysis device more smoothly, electrolysis can be accelerated | stimulated and cleaning power can be improved.

The invention according to claim 7 is the drum type washing machine according to claim 6, wherein the drum is rotated from the outlet 63B side toward the inlet 63A side when dewatering.

According to this configuration, the drum rotates in a direction where moisture from the laundry is difficult to enter the inlet during dehydration, so that the water in the electrolytic apparatus can be drained properly.

In the invention according to claim 8, the drum is rotated with each other in a direction from the outlet (63B) side toward the inlet (63A) side and a direction opposite to this direction during washing and rinsing. ) Is a drum type washing machine according to claim 6 or 7, characterized in that the water stored in the outer tub is electrolyzed only when the drum rotates in the opposite direction.

According to this configuration, the water is electrolyzed by the electrolytic apparatus only when the drum is rotating in the direction in which the water in the outer tank easily enters the inlet (the opposite direction) during washing and rinsing. It can extend the life of the device.

The invention according to claim 9 has a cylindrical shape arranged in the transverse direction, and includes an outer tub 2 for storing water at the time of washing, and a laundry angle accommodated in the outer tub so as to be placed at a predetermined angle relative to the horizontal direction or the horizontal direction. A drum type washing machine having a drum (4) rotating about a rotation shaft (51L, 51R) set within a range, the inlet (64A) facing the transverse direction from the lower end of the cylinder to the cylindrical portion of the outer tub, and the cylindrical portion of the outer tub An outlet 64B which is laterally open from a position above a predetermined dimension than the inlet, and is inclined to be connected to the inlet and the outlet so as to conform to the outer tank surface, and electrolytically decomposes water introduced through the inlet; A drum type washing machine having an electrolytic device 160 for returning from the outlet to the outer tub.

According to this structure, an electrolytic apparatus can be arrange | positioned in a narrow attachment space by attaching it inclined so that an electrolytic apparatus may adhere to the outer tank surface at the corner part of the lower side of the cylindrical part of an outer tub.

The invention according to claim 10 is the drum type washing machine according to any one of claims 3 to 9, wherein the electrolytic devices 60 and 160 are detachably attached to the outer tank.

According to this configuration, since the electrolytic device can be detachably attached and the electrolytic device can be removed and repaired, the life of the electrolytic device can be extended.

The invention as set forth in claim 11 is characterized in that the outer tub (2) capable of storing water at the time of washing and rotating around the rotation shafts (51L, 51R) provided in the outer tub and set within a predetermined angle range with respect to the substantially horizontal direction or the horizontal direction. A drum type washing machine including a drum (4) for accommodating laundry, wherein water stored in the outer tub is introduced into an end surface of the outer tub facing the end surface side 41R in the rotational axis direction of the drum, and the water is electrolyzed by It is a drum type washing machine, characterized in that the electrolytic device 160 for returning to the outer tank.

According to this configuration, since the electrolytic cell is provided opposite to the end face side of the drum, water in the outer tank flowing with the rotation of the drum is less likely to enter the electrolytic cell. Therefore, it is possible to prevent the thread debris and the like contained in the water in the outer tank from entering the electrolytic apparatus, thereby preventing the electrolytic apparatus from failing.

The invention as set forth in claim 12 further comprises an outer tub 2 capable of storing water during washing and rotating shafts 51L and 51R installed in the outer tub and set within a predetermined angle range with respect to a substantially horizontal direction or a horizontal direction. It is a drum type washing machine including a drum (4) for accommodating laundry, which is configured to blow warm air into the tub to dry the laundry after the completion of dehydration, and electrolytic devices (60, 160) for electrolyzing the water stored in the tub. It is a drum type washing machine which has a drying apparatus (U).

According to this configuration, not only the laundry in the drum but also the electrode plate included in the electrolytic apparatus can be dried by the operation of the drying apparatus, so that corrosion of the electrode plate can be prevented and durability can be improved.

The invention according to claim 13, wherein the drum 4 has a peripheral wall 42 that rotates about the rotating shaft, and the electrolytic device 60 is attached at a position opposite to the peripheral wall of the drum. It is a drum type washing machine of Claim 12.

According to this configuration, since the electrolytic apparatus is provided to face the peripheral wall of the drum, air flows smoothly into the electrolytic apparatus with the rotation of the drum during drying. Therefore, since the electrode can be dried more effectively, corrosion of the electrode can be prevented and durability can be improved.

The invention according to claim 14, wherein the drum is stopped for a predetermined time until the rinsing starts after the washing of the laundry is finished, the electrolytic device (60, 160) is the water stored in the outer tank during the predetermined period The drum type washing machine according to any one of claims 1 to 13, characterized by electrolysis.

According to this configuration, by stopping the rotation of the drum for a predetermined time (for example, about 5 minutes) and electrolyzing the water, the concentration of active oxygen or hypochlorous acid generated by electrolysis in the vicinity of the electrolytic apparatus is increased. Afterwards, the sterilization effect can be improved by rinsing.

The invention according to claim 15 rotates about an outer tub (2) capable of storing water during washing and rotating shafts (51L, 51R) installed in the outer tub and set within a predetermined angle range with respect to a substantially horizontal direction or a horizontal direction. It is a drum type washing machine including a drum (4) for accommodating laundry, and has electrode plates (61, 161) for electrolyzing water stored in the outer tank, the current being supplied to the electrode plate before or during dehydration. It is a drum type washing machine characterized by including an electrolytic apparatus (60, 160) capable of detecting whether bubbles remain in the outer tank by detecting resistance.

According to this configuration, if bubbles remain in the electrolytic cell before or during dehydration, electric current flows through the bubbles between the electrode plates in the electrolytic apparatus. Thus, by detecting the electrical resistance of this current, it is possible to detect whether bubbles remain in the outer tub. Specifically, the resistance value is low when there are many bubbles remaining in the outer tub, and high when there are few bubbles remaining. When it is detected that bubbles remain in the outer tub, for example, the foam may be removed by waterproofing a predetermined amount of water in the outer tub.

By removing the bubbles remaining in the outer tank, it is possible to prevent the bubbles from becoming resistant during dehydration and not to increase the rotational speed of the drum, thereby improving the dewatering performance.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail with reference to an accompanying drawing.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a drum type washing machine according to an embodiment of the present invention as seen from an inclined upper side. In Fig. 1, the left near side will be described as the front and the right inner side as the rear.

The housing 1 constituting the drum washing machine is formed to have a size that can be installed in a spiral type washing machine fan having a pulsator for generating water flow in a washing tank for storing laundry, for example. Moreover, it is designed so that the height (height from the bottom surface to the upper surface 1A of the housing 1) when installed on the floor may be about the waist height of a user.

An inclined surface 1B inclined to lower toward the front side is formed on the front side of the upper surface 1A of the housing 1, and is opened and closed by an opening and closing cover 14 from the upper surface 1A of the housing 1 to the inclined surface 1B. The opening 15 which can be opened and closed is formed. The opening and closing cover 14 includes a rear cover 14A covering a portion formed in the upper surface 1A of the housing 1 of the opening 15, and a front cover 14B covering a portion formed in the inclined surface 1B. The rear cover 14A has a rear edge rotatably attached to the upper surface 1A of the housing 1, and the front cover 14B has a rear edge rotatably attached to the front edge of the rear cover 14A. have. Both left and right sides of the front edge of the front lid 14B are slidably attached in the front-rear direction along the inner circumferential edges of the left and right sides of the opening 15.

The user grasps the handle portion 16 formed on the front cover 14B and slides the rear portion of the front cover 14B upward while sliding the rear cover, so that the front cover 14B and the rear cover 14A are removed from the upper surface 1A. The opening 15 can be opened in the folded state so as to protrude upward.

On the right side of the opening 15 in the inclined surface 1B, an operation display panel 17 for performing various displays such as various settings related to the operation of the drum type washing machine and the operation status is arranged.

In addition, an approximately circular opening 18 is formed in the substantially center of both left and right sides of the housing 1, and a lid 19 is fitted in each opening 18 (only the right side is shown in FIG. 1). . The opening 18 is a so-called service hatch, and the maintenance in the apparatus can be performed by removing the cover 19 and inserting a hand into the housing 1.

Fig. 2 is a longitudinal sectional view showing the overall configuration of the drum type washing machine, and is a view of the cross section taken when cut in the vertical plane along the left and right directions, seen from the front side. 3 and 4 are longitudinal cross-sectional views of the drum type washing machine, which are cross-sectional views when cut into a vertical plane in the front-rear direction from the left or the right, respectively.

2 to 4, a substantially cylindrical outer tub 2 is provided inside the housing 1 with the end face left and right. Both end faces of the outer tub 2 are closed by end face walls 21L and 21R.

The outer tub 2 is supported by a pair of dampers 3F and 3B and a pair of coil springs (not shown). Specifically, the pair of dampers 3F and 3B connect between the inner bottom surface of the housing 1 and the outer tub 2, respectively, the position of the lower front side and the position of the lower rear side of the outer tub 2, respectively. I support it. Moreover, the pair of coil springs connect the left and right side surfaces of the housing 1 and the outer tub 2, respectively, and support the position of the upper end part rear side of the outer tub 2 end surface walls 21L and 21R.

Inside the outer tub 2, a substantially cylindrical drum 4 for accommodating laundry therein is provided with the end face left and right. The drum 4 is arrange | positioned so that the axis line may become substantially coaxial with respect to the axis line of the outer tub 2. As shown in FIG. Both end faces of the drum 4 are closed by end face walls 41L and 41R, and rotating shafts 51L and 51R are connected to the centers of these end face walls 41L and 41R, respectively. The rotary shafts 51L and 51R extend left and right from the end face walls 41L and 41R along the same rotational axis set in the direction substantially orthogonal to the left and right sides of the housing 1, respectively, and the bearing 52L attached to the outer tub 2. , 52R is rotatably held.

On the left side of the outer tub 2, a motor 6 for rotationally driving the drum 4 is attached to the left end surface 21L of the outer tub 2 via the stator 6A. The motor 6 is coupled to the left end of the rotary shaft 51L in a DD (direct drive) manner, and by rotating the external rotor 6B of the motor 6, the rotary shaft 51L is rotated so that the drum 4 Is rotated around the axis in the outer tub (2).

The peripheral surface wall 42 of the drum 4 is formed with an opening 43 for entering and leaving the laundry. And the opening 22 is formed in the circumferential surface wall 21 of the outer tub 2 in the position which opposes the opening 15 of the housing 1. In the opening 22 of the outer tub 2 and the opening 43 of the drum 4, slide opening / closing covers 22A and 43A are respectively provided, and in the state where these opening and closing covers 22A and 43A are opened. The laundry is allowed to enter and exit. The opening and closing lid 43A of the drum 4 opening 43 may be configured to automatically open and close in conjunction with this when the opening and closing lid 22A of the outer tub 2 opening 22 is opened and closed.

A locking mechanism 10 is attached to the lower end of the left end surface wall 21L of the outer tub 2 for stopping the rotation of the drum 2 at a predetermined timing. By the operation of the lock mechanism 10, the stop position of the drum 4 is controlled such that the opening 43 overlaps the opening 22 of the outer tub 2. Thereby, by opening and closing the lid 14 in a state where the rotation of the drum 4 is stopped, the laundry can be pushed in and out of the drum 4 from the inclined upper side through the openings 15, 22, 43.

On the left side of the rear portion of the upper surface 1A of the housing 1, a hose connection port 71 for connecting a water supply hose to an external water supply system or the like is provided (see Fig. 3), and from the hose connection port 71, the housing 1 The water supply pipe 72 extends toward the inside. Tap water (hereinafter, simply referred to as "water") supplied through the water supply hose is supplied into the outer tub 2 through the water supply pipe 72.

Moreover, the drain port 76 is formed in the lower end part right side of the peripheral surface wall 21 of the outer tub 2, and the drain pipe 76 is connected to this drain port 76. As shown in FIG. A drain valve 77 is interposed in the middle of the drain pipe 75 and water is supplied in the closed state of the drain valve 77 to store the water supplied through the hose connection 71 in the outer tank 2. Can be. In addition, the water stored in the outer tub 2 can be drained out of the washing machine through the drain hole 76 and the drain pipe 75 by opening the drain valve 77.

A plurality of water passages (not shown) are drilled through the peripheral wall 42 of the drum 4, and water supplied into the outer tub 2 is introduced into the drum 4 through these water passages. In addition, on the inner surface of the peripheral wall 42 of the drum 4, one baffle (not shown) for lifting the laundry is provided at a predetermined isometric angle (for example, every 120 °) in the circumferential direction (three in total). ) It is installed to extend in the left and right direction.

During washing and rinsing, the drum 4 is rotated while the water is stored in the outer tub 2 so that the laundry in the drum 4 is lifted up by the baffle and naturally falls from the height to the water surface. This is repeated. At the time of dehydration, the drum 4 is rotated at high speed so that the water contained in the laundry in the drum 4 is squeezed out by centrifugal force, and water from the laundry is scattered to the outer tank 2 through the water passage.

The drain pipe 75 diverges toward the right in the middle. An air trap 11 is attached to the drain pipe 75 branched from the outside and branched to the lower end of the right end face wall 21R of the outer tub 2. A water level detection sensor (not shown) is connected to the air trap 11, and the water level detection sensor can detect the water level in the outer tank 2 by detecting the pressure of air in the air trap 11.

The hot water heater 12 is provided in the lowest part in the outer tank 2. As shown in FIG. By using this hot water heater 12 to warm the water stored in the outer tub 2, washing and rinsing can be performed at an appropriate water temperature.

In order to reduce vibration of the drum 4 at the time of dehydration, a plurality of (eg, eight) reservoir boxes 8 are attached to the outer side of the drum 41 at the outer end of the right end face wall 41R. have. The storage box 8 is formed in the rectangular shape which has the opening 81 in one surface, and is arrange | positioned at substantially equiangular intervals in the state which the opening 81 turned toward the rotation center (rotation shaft 51R). A part of the water supplied from the water supply pipe 72 into the outer tank 2 can be waterproofed toward the track | orbit which the opening 81 of each reservoir 8 draws with rotation of the drum 4, and the drum 4 Water is stored in the water storage boxes 8 by centrifugal force by rotating water at a predetermined speed.

When the eccentric load is generated in the drum 4 by the ubiquity of the laundry, water which is filled up approximately in each storage box 8 is stored, and from that state from the storage box 8 which is closest to the eccentric load from the state. Control to drop the rotational speed of the drum 4 momentarily so that water flows is performed. If the decrease in the weight of water from the water storage box 8 corresponds to the eccentric load, both of them cancel each other and the eccentric load generated on the drum 4 becomes small. The vibration caused can be made small.

In order to further suppress the vibration of the drum 4 during dehydration, an annular fluid balancer 9 is attached to the periphery of the left end surface wall 41L of the drum 4. Four flow paths 91 in the circumferential direction are formed inside the fluid balancer 9, and a predetermined amount of liquid is sealed in each flow path 91, respectively. In addition, a partition plate (not shown) is provided in each flow path 91 at predetermined angles (for example, about every 60 degrees) in the circumferential direction, and the liquid in each flow path 91 is separated from the partition plate and the fluid balancer. (9) It is freely circulated through the gap between the inner surfaces. As a result, the liquid in the fluid balancer 9 is ubiquitous so that the vibration caused by the ubiquity of the laundry is approximately in phase with the drum 4 while the drum 4 is rotating at a low speed (about 100 rpm). When the rotational speed of the magnetizer exceeds a certain speed (about 300 rpm), it is ubiquitous so that vibrations which are substantially out of phase with vibrations caused by the ubiquitous distribution of the laundry occur. Therefore, in the high speed rotation of the drum 4, the vibration resulting from the ubiquity of the laundry can be eliminated by the vibration due to the ubiquitous liquid in the fluid balancer 9, and the vibration of the drum 4 can be suppressed.

This drum type washing machine also has a function of drying the laundry after dehydration, and a drying unit U for a drying function is attached to the right end surface wall 21R of the outer tub 2 from the outside. As shown in FIG. 4, the drying unit U comprises a air passage member 31 constituting an air passage for guiding the air outside the housing 1 upwardly from the suction port 30 communicating with the housing 1 and the outside upward. ), A fan 32 for blowing air from the outside of the housing 1 into the outer tub 2, and an air from the fan 32, disposed at an end portion of the air passage member 31. A drying hood 33 for guiding the inside) and a warm air heater 34 disposed in the drying hood 33 to warm the air blown into the outer tub 2. At the time of drying, the drum 4 is rotated while blowing warm air from the drying unit U into the outer tub 2, thereby lifting the laundry in the drum 4 by the baffle and naturally dropping it from a certain height. Repeat. Thereby, laundry can be dried satisfactorily.

5 and 6 are right side and front views of the outer tub 2, respectively, and the drum 4 is omitted. 5 and 6, an electrolytic device 60 for electrolyzing the water stored in the outer tub 2 is attached to the circumferential wall 21 of the outer tub 2 from the outside at the front left end of the lower end thereof. .

The electrolytic device 60 connects the electrolytic cell 62 having a plurality of electrode plates 61 therein with the electrolytic cell 62 and the electrolytic cell 62 to the outer tank 2 to supply water in the outer tank 2 to the electrolytic cell 62. ) Has two connection tubes 63A and 63B for circulation. In particular, the connecting pipe 64A extends horizontally in the tangential direction from the lowermost end of the outer tub 2.

The inlet pipe 64A and the outlet pipe 64B protrude outward from the peripheral surface wall 21 of the outer tub 2 corresponding to each connection pipe 63A, 63B at the attachment position of the electrolytic apparatus 60. FIG. . The inlet pipe 64A and the outlet pipe 64B are arranged in the up-down direction, and protrude in the horizontal direction front side, respectively. The connecting device 63A, 63B is connected to the corresponding inlet pipe 64A and the outlet pipe 64B via the packing 65 at the same time, and the plurality of connection pipes 63A and 63B are provided in the electrolytic cell 62 (for example, For example, a screw is screwed into the circumferential wall 21 of the outer tub 2 through the four screw holes 66 and is attached to the outer tub 2. Thereby, in the state in which the electrolytic cell 62 opposes the circumferential surface wall 42 of the drum 4, it attaches inclined so that it may follow the circumferential surface wall 21 of the outer tank 2, and the water in the outer tank 2 may be electrolyzed. ) Can be blown into.

Since the electrolytic cell 62 is provided in the state facing the peripheral wall 42 of the drum 4, the water in the outer tank 2 flowing with the rotation of the drum 4 smoothly enters the electrolytic cell 62. . Therefore, since the electrolysis is promoted, the cleaning power can be improved.

Moreover, since the electrolytic cell 62 is inclined so that the circumferential wall 21 of the outer tank 2 may be inclined, the electrolytic apparatus 60 can be arrange | positioned in the narrow attachment space of the lower front part of the outer tank 2. .

Since the inlet pipe 64A and the outlet pipe 64B are provided with the height difference, the flow of water in the outer tank 2 flowing with the rotation of the drum is near the inlet pipe 64A and the outlet pipe 64B. Is different from. Therefore, since the flow of water in the electrolytic apparatus 60 can be made favorable, electrolysis is accelerated | stimulated and cleaning power improves.

In addition, since water in the electrolytic apparatus 60 flows from the high outlet tube 64B side to the low inlet tube 64A side at the time of drainage, it is possible to prevent the water from being stored in the electrolytic apparatus 60. Can be. Therefore, corrosion of the electrode plate 61 can be prevented and durability can be improved.

The electrolytic apparatus 60 can be attached and detached by loosening four screws and removing the connection between the two connection pipes 63A and 63B and the corresponding inlet pipe 64A and the outlet pipe 64B, respectively. Therefore, since the electrolytic device 60 can be removed and repaired, the life of the electrolytic device 60 can be extended.

In the electrolytic cell 62, a pair of connection terminal 67 protrudes, for example from the left side to the left side. These connecting terminals 67 are connected to a plurality of electrode plates 61 in the electrolytic cell 62, and two lead wires connected to the + and − poles of the power supply unit provided inside the drum washing machine are respectively waterproof connectors ( The plurality of electrode plates 61 can be energized by being connected to the pair of connection terminals 67 via a diagram (not shown). By energizing the electrode plate 61, the water blown into the electrolytic cell 62 of the electrolytic device 60 from the outer tank 2 can be electrolytically treated.

The plurality of electrode plates 61 are disposed at positions immersed in water (tap water) stored in the outer tank 2. As a result, water and chlorine, which are components of tap water, react chemically to generate active oxygen (O ₂ ⁻ ), hypochlorous acid (HClO), and the like. By the action of these products, contamination from laundry can be prevented from adhering to the laundry again at the time of washing, and the laundry can be sterilized by the sterilizing effect at the time of rinsing. Therefore, cleaning power can be improved.

Both the inlet pipe 64A and the outlet pipe 64B are disposed so as to be at a position lower than the water level stored in the outer tank 2. As a result, water flows more smoothly through the electrolytic apparatus 60, so that electrolysis is promoted more and the cleaning power is improved. The outlet pipe 64B may be arranged so as to be at a position higher than the water level of the water stored in the outer tub 2.

In the present embodiment, during washing and rinsing, the driving of the motor 6 is stopped / reversed every predetermined time, so that the drum 4 is rotated alternately clockwise and counterclockwise in FIG. 5 about its axis. . On the other hand, at the time of dehydration, the drum 4 is rotated at high speed counterclockwise in FIG. 4 about its axis.

Since the inlet pipe 64A protrudes tangentially forward from the lowermost end of the peripheral wall 21 of the outer tub 2, the drum 4 rotates when the drum 4 rotates in the clockwise direction in FIG. The water in the outer tank 2 which flows clockwise with this easily enters the electrolytic apparatus 60 through this inlet pipe 64A. Therefore, during washing and rinsing, since water smoothly enters the electrolytic apparatus 60 when the drum 4 rotates clockwise, electrolysis can be promoted and the cleaning power can be improved. On the other hand, at the time of dehydration, since the drum 4 rotates in the direction (counterclockwise direction) in which moisture from laundry is hard to enter the inlet pipe 64A, the water in the electrolytic apparatus 60 can be drained appropriately.

In the present embodiment, the drum 4 is stopped for a predetermined time (for example, about 5 minutes) until the rinsing starts after the washing of the laundry is finished. Therefore, during this predetermined time, the concentration in the vicinity of the electrolytic device 60 of active oxygen and hypochlorous acid generated by electrolysis can be increased by electrolyzing water by the electrolytic device 60. Thereafter, the sterilization effect can be improved by rinsing.

The electrolytic apparatus 60 may electrolyze water only when the drum 4 is rotating clockwise during washing and rinsing. In this case, electrolysis is performed only when water easily enters the electrolytic cell 60, so that the electrolysis can be efficiently conducted and the life of the electrolytic device 60 can be extended.

In this embodiment, not only the laundry in the drum 4 but also the electrode plate 61 contained in the electrolytic apparatus 60 can be dried by the action of the drying unit U. FIG. Therefore, corrosion of the electrode plate 61 can be prevented and durability can be improved.

The electrolytic apparatus 60 can not only electrolyze water during washing and rinsing, but also detects whether bubbles remain in the outer tub 2 before or during dehydration. After completion of the rinsing, if bubbles remain in the electrolytic cell 60, current flows through the bubbles between the electrode plates 61 in the electrolytic apparatus 60. Therefore, it is possible to detect whether bubbles remain in the outer tub 2 by detecting the electrical resistance of this current. Specifically, when bubbles remain in the outer tub 2, the resistance value is low, and when bubbles do not remain, the resistance value is high. When it is detected that foam remains in the outer tub 2, the foam may be removed by, for example, waterproofing a predetermined amount of water in the outer tub 2.

By removing the bubbles remaining in the outer tub 2, it is possible to prevent the bubbles from becoming resistant during dehydration and the rotational speed of the drum 4 not to rise, thereby improving the dewatering performance.

Fig. 7 is a longitudinal sectional view showing the entire configuration of a drum type washing machine according to another embodiment of the present invention, and is a view of a cross section taken from the front side when cut into a vertical plane along the left and right directions. In the drum type washing machine according to the present embodiment, the attachment state between the drum type washing machine and the electrolytic apparatus 160 of the first embodiment is different. Since it is the structure similar to 1st Embodiment except the attachment part of the electrolytic apparatus 160, the same code | symbol is attached | subjected to drawing and the description is abbreviate | omitted.

The electrolytic device 160 is attached to the lower end of the right end surface wall 21R of the outer tub 2 from the outside. The electrolytic device 160 connects the electrolytic cell 162 of the hollow electrolytic cell 162 having a plurality of electrode plates 161 therein, and the electrolytic cell 162 to the outer tank 2 to supply water in the outer tank 2 to the electrolytic cell 162. ) Has two connection tubes 163A and 163B for circulation.

On the right end surface wall 21R of the outer tub 2, two protruding pipes 164A and 164B protrude outwardly to correspond to the connection pipes 163A and 163B at the attachment position of the electrolytic apparatus 160. FIG. The two protruding pipes 164A and 164B are arranged in the vertical direction and protrude in the horizontal direction to the right, respectively. The electrolytic device 160 is attached with the electrolytic cell 162 facing the right end surface wall 41R of the drum 4, and the water in the outer tank 2 can be blown into the electrolytic cell 162.

In the present embodiment, since the electrolytic device 160 is provided to face the end face wall 41R instead of the peripheral face wall 42 of the drum 4, the outer tub 2 flowing along with the rotation of the drum 4 is provided. It is difficult for the water inside to enter either of the two protruding tubes 164A and 164B. Therefore, the thread debris etc. which are contained in the water in the outer tank 2 can be prevented from entering into the electrolytic apparatus 160, and it can prevent that the electrolytic apparatus 160 breaks down.

The present invention is not limited to the contents of the above embodiments, and various changes can be made within the scope of the claims.

The drum 4 is not limited to rotating about a rotation axis extending in the horizontal direction, but may be configured to rotate about the rotation axis set within a predetermined angle range with respect to the horizontal direction.

Although a description has been given using a so-called top-loading drum type washing machine in which an opening 15 for taking out laundry is formed on the upper surface 1A of the housing 1, for example, an opening for taking out laundry is formed in the front face of the housing 1. Even if it is a drum type washing machine, this invention can be applied.

The electrolytic apparatus is not limited to the attachment position of the two embodiments, but may be disposed, for example, in an outer tank. For example, the structure which protrudes the outer shell circumferential surface wall of the position to which an electrolytic device is attached outward, and attaches an electrolytic device inside the protruded part of the circumferential wall may be sufficient.

According to the present invention, a drum type washing machine with improved cleaning power is provided.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which looked at the drum type washing machine which concerns on one Embodiment of this invention from the inclination upper direction.

Fig. 2 is a longitudinal sectional view showing the overall configuration of a drum type washing machine, and a cross section when cut in a vertical plane along the left and right directions, seen from the front side;

Fig. 3 is a longitudinal sectional view of the drum type washing machine, and a cross section view of the drum washing machine in a vertical plane in the front-rear direction as seen from the left side.

Fig. 4 is a longitudinal sectional view of the drum type washing machine, and a cross section view taken from the right side when cut into a vertical plane along the front and rear directions;

5 is a right side view of the outer tank taken out;

Figure 6 is a front view of the outer tank taken out.

Fig. 7 is a longitudinal sectional view showing the overall configuration of a drum type washing machine according to another embodiment of the present invention, wherein the cross section when cut in the vertical plane along the left and right directions is viewed from the front side.

<Explanation of symbols for the main parts of the drawings>

2: the outer bird

4: drum

41R: End face wall

42: peripheral wall

51L, 51R: rotating shaft

60, 160 electrolytic apparatus

61, 161: electrode plate

62: electrolytic cell

63A, 63B: Connection pipe

64A: inlet pipe

64B: outlet pipe

U: Drying Unit

Claims (15)

The outer tank which can store water at the time of washing, A drum type washing machine is provided in the outer tank and accommodates laundry. When water is stored in the outer tank, there is provided an electrolytic device having an electrode plate provided in a position to be submerged in the stored water so as to electrolyze the water stored in the outer tank, The drum has a peripheral wall that can rotate about the axis of rotation, The electrolytic device includes the electrode plate and an electrolytic cell containing the same, The electrolyzer is attached at a position opposite the peripheral wall of the drum, In addition, the electrolytic device is in communication with the electrolytic cell and the outer tank, the inlet through which the water stored in the outer tank flows with the rotation of the drum to enter the electrolytic cell, and the water of the electrolytic cell infiltrated from the inlet by communicating with the electrolytic cell and the outer tank A drum type washing machine having an outlet for returning to an outer tank, wherein said inlet and outlet are provided with a height difference. delete delete The said inlet is arrange | positioned so that it may become a position lower than the water level of the water stored in the said tank, And the outlet is arranged to be at a position higher than the water level stored in the outer tub. The drum type washing machine according to claim 1, wherein the inlet and the outlet are respectively arranged so as to be at a position lower than the water level of the water stored in the outer tub. The drum type washing machine according to claim 1, wherein the inlet faces a tangential direction of the peripheral wall of the drum. The drum type washing machine according to claim 6, wherein the drum is configured to rotate from the outlet side toward the inlet side during dewatering. 7. The drum according to claim 6, wherein the drum is alternately rotated in a direction from the outlet side toward the inlet side during washing and rinsing, and in a direction opposite to this direction, And the electrolytic device electrolyzes the water stored in the outer tank only when the drum rotates in the opposite direction. Cylindrical disposed in the transverse direction, the outer tank for storing water at the time of washing, It is a drum type washing machine having a drum which is accommodated in the outer tub approximately coaxially and rotates about a rotating shaft set within a predetermined angle range with respect to the horizontal direction or the horizontal direction. An inlet provided in a cylindrical portion of the outer tub facing the peripheral wall of the drum, and facing in a transverse direction from the lower end of the cylinder; An outlet provided in a cylindrical portion of the outer tub facing the peripheral surface wall of the drum, the outlet opening laterally from a position above a predetermined dimension than the inlet; And an electrolytic device connected to the inlet and the outlet so as to be inclined along the surface of the outer tub, and having an electrolysis device for electrolyzing water introduced through the inlet to return from the outlet to the outer tub. The drum type washing machine according to claim 9, wherein the electrolytic device is detachably attached to the outer tank. delete The drum type washing machine according to claim 1, further comprising a drying device for blowing warm air into the outer tank to dry the laundry after the completion of dehydration. delete 13. The drum according to any one of claims 1, 4 to 10 or 12, wherein after the washing of the laundry is finished, the drum is stopped for a predetermined time until the rinsing starts, And said electrolytic device electrolyzes the water stored in the outer tank during said predetermined period. The drum type washing machine according to claim 1, wherein the electrolytic apparatus detects whether or not bubbles remain in the outer tank by allowing an electric current to flow through the electrode plate before or during dehydration to detect the electrical resistance.