JP4637056B2 - Washing machine - Google Patents

Description

  The present invention relates to a washing machine, and more particularly to a washing machine having a gas generation function.

2. Description of the Related Art Conventionally, a washing machine is known that can purify laundry by supplying ozone to the laundry stored in a laundry tub. As such a washing machine, for example, a washing machine including a washing tub and an ozone supply device that supplies ozone into the washing tub has been proposed (for example, see Patent Document 1).
JP 2002-320792 A

In the washing machine described in Patent Document 1, the laundry is purified by supplying ozone, which is a sterilizing component, into the washing tub in the draining step after the washing step.
By the way, ozone has a peculiar smell and it is not preferable that the human body sucks it. Therefore, it is desirable to prevent ozone from leaking outside the washing machine. However, the washing machine described in Patent Document 1 is desired. Thus, in the drainage process, that is, the method of supplying ozone while the drain valve is open, the supplied ozone may leak to the outside through the drain pipe.

Further, a general washing machine includes, for example, an overflow pipe for draining water of a predetermined level or more from a washing tub to the outside, a detergent container provided in the middle of a water supply pipe for supplying water into the washing tub, and the like. Therefore, when an ozone supply device is attached, it is necessary to prevent ozone from leaking out from these portions.
The present invention has been made under such a background, and prevents the gas from leaking to the outside when supplying a gas having a purifying function including ozone and other sterilizing components and sterilizing components to the laundry. The main purpose is to provide a washing machine capable of performing the above.

The invention according to claim 1 is capable of storing laundry and storing water, a treatment tank for performing processing such as washing and dehydration, water supply means for supplying water to the treatment tank, and the treatment tank A drainage channel for draining the water stored in the outside and the drainage channel merged with the drainage channel, and when the amount of water stored in the treatment tank exceeds a predetermined amount, drains the predetermined amount or more of water And a drain trap for retaining water, a gas for purifying laundry, and a gas for purifying the laundry are provided, and the gas is treated as described above. A gas supply means for supplying water to the tank, a water supply control means for storing water in the drain trap by controlling the water supply means before supplying the gas to the treatment tank, and , Upstream from the merging position of the overflow channel A drainage valve for opening and closing the flow path of the drainage channel, and the water supply control means closes the drainage valve and controls the water supply means or the dehumidified water supply means, thereby After storing a predetermined amount of water in the tank, the drain valve is opened to store water in the drain trap, and further provided with a water level sensor for detecting the water level in the processing tank, When the water level sensor detects a predetermined set water level, the control means stores the water in the drain trap by opening the drain valve, and the water supply control means is predetermined from the start of water supply to the treatment tank. A water level between a first set water level detected by the water level sensor after the first time water supply and a second set water level detected after the first time has elapsed and after a predetermined second time water supply. But if more than a predetermined threshold value, by opening the drain valve, wherein the accumulating water in the drain trap, a washing machine.

  In the invention according to claim 2, one end is connected to the lower part of the treatment tank, the other end is connected to another part of the treatment tank, and the air in the treatment tank is caused to flow out from one end and circulate. A circulating air passage for inflow from the other end, connected to the circulating air passage, and controlled by the water supply control means to remove dehumidified water for removing moisture in the air passing through the circulating air passage. A dehumidifying water supply means for supplying the dehumidified water into the passage, wherein the water supply control means controls the dehumidified water supply means to store water in the drain trap from the circulation air passage through the lower part of the treatment tank. The washing machine according to claim 1, characterized in that it is a washing machine.

請 Motomeko 3 the described invention, the water supply control means, when the water level sensor does not detect the set water level, and executes the water supply error process, a washing machine according to claim 1, wherein.

  Invention of Claim 4 can accommodate a laundry and can store water, The processing tank for performing processes, such as washing and dehydration, The water supply means for supplying water to the said processing tank, The said processing tank A drainage channel for draining the water stored in the outside and the drainage channel merged with the drainage channel, and when the amount of water stored in the treatment tank exceeds a predetermined amount, drains the predetermined amount or more of water And a drain trap for retaining water, a gas for purifying laundry, and a gas for purifying the laundry are provided, and the gas is treated as described above. Gas supply means for supplying to the tank, and water supply control means for storing water in the drain trap by controlling the water supply means before supplying the gas to the treatment tank, Means to supply water to the treatment tank A detergent containing portion for containing a detergent and a finishing agent which is provided in the middle of the water supply channel and is dissolved in the water to be supplied; and downstream of the detergent containing portion in the water supply channel The water supply control means stores water in the water supply trap before supplying the gas to the treatment tank, and the water supply path is provided with a water supply trap for retaining water to be supplied. And a bypass water supply passage for supplying water to the treatment tank without passing through the detergent container, wherein the water supply control means stores water in the water supply trap through the bypass water supply passage. It is.
In the invention according to claim 5, one end is connected to the lower part of the processing tank, the other end is connected to another part of the processing tank, and the air in the processing tank is caused to flow out from one end and circulate. A circulating air passage for inflow from the other end, connected to the circulating air passage, and controlled by the water supply control means to remove dehumidified water for removing moisture in the air passing through the circulating air passage. A dehumidifying water supply means for supplying the dehumidified water into the passage, wherein the water supply control means controls the dehumidified water supply means to store water in the drain trap from the circulation air passage through the lower part of the treatment tank. The washing machine according to claim 4, characterized in that it is a washing machine.
The invention according to claim 6 is provided with a drainage valve provided on the upstream side of the merging position of the overflow channel in the drainage channel, for opening and closing the channel of the drainage channel, and the water supply control means includes the drainage control unit. By closing the valve and controlling the water supply means or the dehumidified water supply means, after storing a predetermined amount of water in the treatment tank, the water trap is stored by opening the drain valve. The washing machine according to claim 4 or 5.
The invention according to claim 7 includes a water level sensor for detecting the water level in the treatment tank, and the water supply control means opens the drain valve when the water level sensor detects a preset water level. The washing machine according to claim 6, wherein water is stored in the drain trap.
The invention according to claim 8 is the washing machine according to claim 7, wherein the water supply control means executes a water supply error process when the water level sensor does not detect the set water level.
According to a ninth aspect of the present invention, the water supply control means further comprises: a first set water level detected by the water level sensor after a predetermined first time water supply from the start of water supply to the treatment tank; and after the first time has elapsed, When the water level difference from the second set water level detected after the predetermined second time water supply is equal to or greater than a predetermined threshold value, the drain trap is opened to store water in the drain trap. A washing machine according to claim 7 or 8.

According to the first and fourth aspects of the present invention, water is stored in a drain trap provided as a part of at least one of the drainage channel or the overflow channel before the gas for purifying the laundry is supplied to the treatment tank. As a result, a part of the route communicating with the treatment tank → the overflow channel → the drain channel → the outside is sealed with the water stored in the drain trap. As a result, even if the gas for purifying the laundry is supplied to the treatment tank after that, the gas leaks to the outside of the washing machine through the treatment tank → the overflow channel → the drainage channel → the path communicating with the outside. Can be prevented. For example, even if a gas having a unique odor such as ozone is supplied, the odor can be prevented from drifting outside.

According to the second and fifth aspects of the present invention, dehumidified water is supplied from the dehumidified water supply means into the circulation air passage, and the dehumidified water is stored in the drain trap from the circulation air passage through the lower part of the treatment tank. Therefore, water can be stored in the drain trap without supplying water from the upper part of the treatment tank. As a result, for example, when performing an operation of purifying the laundry with a gas having a purification function without using water prior to washing, even if the laundry is stored in the treatment tank in advance, Water can be stored in the drain trap without getting wet.

According to the first and sixth aspects of the invention, the water stored in the drainage trap can be temporarily stored in the treatment tank by closing the drainage valve provided on the upstream side of the merging position of the overflow channel. After being stored, it flows out by opening the drain valve and is stored in the drain trap. Therefore, for example, even when a drain trap is provided upstream of the merging position of the overflow channel with the drain channel, by flowing a predetermined amount of water into the drain channel at once, the discharged water Can flow out from the merging position to the overflow channel side, that is, the drain trap side. As a result, water can be reliably stored in the drain trap. Further, in such a configuration, it is not necessary to provide a drain trap having a complicated shape on the drain channel side, so that drainage treatment can be performed efficiently.

According to the first and seventh aspects of the invention, when the water level sensor detects that the water level in the treatment tank has reached the predetermined water level, water is stored in the drain trap by opening the drain valve. Therefore, by setting the water level corresponding to the amount of water to be stored in the drain trap in advance in the water level sensor, water can be reliably stored in the drain trap.
According to the third and eighth aspects of the present invention, when the water level sensor does not detect that the water level in the processing tank has reached the predetermined water level, that is, the amount of water necessary for collecting in the drain trap is the processing tank. If the water is not stored in the tank, the water supply error processing is performed without opening the drain valve. Therefore, for example, when water cannot be stored in the treatment tank due to a failure of the water supply means or dehumidified water supply means, and the water cannot be collected in the drain trap, the gas having the purification function is mistakenly treated. It is possible to prevent leakage to the outside.

According to invention of Claim 9 , the water level difference of the 1st setting water level (X) after 1st time progress from the water supply start to a processing tank and the 2nd setting water level (Y) after 2nd time progress is. When it is equal to or greater than the predetermined threshold (Z), that is, when Y−X ≧ Z, water is accumulated in the drain trap by opening the drain valve. A small amount of water is required to be stored in the drain trap, and a high-precision water level sensor is required to accurately measure the amount of water with the water level sensor. That is, a water level sensor that can accurately measure even a very small amount of water is required. However, when water is stored in the drain trap, it is not particularly limited as long as it is above the small amount of water (because water exceeding the allowable amount of the drain trap is drained to the outside from the drainage channel), it is stored in the treatment tank. It is sufficient if it can be determined that the amount of water present is equal to or greater than a predetermined amount. Therefore, as in the above configuration, the reset water level (water level sensor) is determined by determining whether or not the difference in water level between the two points is equal to or greater than a predetermined threshold (for example, about the amount of water required to be stored in the drain trap). Even if it is below the minimum water level that can be measured accurately, it is possible to determine whether a small amount of water is stored in the treatment tank without using a high-precision water level sensor, and to ensure that the drain trap Can store water. Moreover, since a highly accurate water level sensor is not required, the cost is not increased.

According to invention of Claim 4 , a water supply trap is provided in the downstream of the detergent accommodating part in a water supply channel, and before the gas which purifies laundry is supplied to a processing tank, water is also stored also in a water supply trap. Thus, a part of the path communicating with the treatment tank → the water supply channel → the detergent container → the outside is sealed with water stored in the water supply trap. As a result, even if the gas for purifying the laundry is supplied to the treatment tank after that, the gas leaks to the outside of the washing machine through the treatment tank → the water supply channel → the detergent container → the path communicating with the outside. Can be prevented. For example, even if a product having a unique odor such as ozone is supplied, it is possible to prevent such a odor from drifting to the outside.

Moreover, according to invention of Claim 4 , water is stored in a water supply trap through the bypass water supply path which can supply water to a processing tank, without passing through a detergent accommodating part. Therefore, for example, even when the user puts a detergent or finish into the detergent container in order to perform a normal washing operation after a purification operation with a gas having a purification function, it is supplied to the water supply trap. Since the water to be used is supplied without going through the detergent container, cleaning water containing detergent and finish is stored in the water trap, preventing the detergent and finish components from staying in the water trap can do.

Embodiments of the present invention will be specifically described below with reference to the drawings.
<Configuration of drum type washing machine>
FIG. 1 is a perspective view of a so-called top open type drum type washing machine 1 as a washing machine according to an embodiment of the present invention. In addition, about the attitude | position of the drum type washing machine 1, it shall follow the direction arrow shown in the upper right of the paper surface of FIG. FIG. 2 is a perspective view of the main part of the drum-type washing machine 1 extracted from the rear upper side and the right side. FIG. 3 is a plan view of the main part of the drum type washing machine 1 shown in FIG. FIG. 4 is a longitudinal sectional view of the drum-type washing machine 1, and is a view of a section when viewed from the front when cut along a vertical plane along the left-right direction. 5A is a longitudinal sectional view of the drum-type washing machine 1, and is a view in which the outer lid 2A closes the opening 4 in a view of a cross section when viewed from the right side when cut along a vertical plane along the front-rear direction. FIG. 5B shows a state in which the outer lid 2A opens the opening 4 in FIG. 5A.
(Casing)
As shown in FIG. 1, the drum type washing machine 1 is partitioned by a housing 2 that forms an outer shell thereof. The upper wall of the housing 2 is formed in a fan shape in a side sectional view so as to be gently curved downward from the substantially central position in the front-rear direction and continue to the front wall. At the center position in the front-rear and left-right directions of the upper wall of the housing 2, an opening 4 for taking in and out the laundry into the housing 2 is formed. The opening 4 is formed in a substantially rectangular shape that is long in the front-rear direction, and can be opened and closed by the outer lid 2A. A pair of guide rails 21L and 21R are extended along the left edge and the right edge of the opening 4 on the upper wall of the housing 2 where the opening 4 is formed. Is slidable in the front-rear direction along the guide rails 21L, 21R.

The outer lid 2A is biased in a direction to open the opening 4 by a spring 38 (see FIG. 5A), that is, rearward. During the operation of the drum type washing machine 1, the outer lid 2A is encased in the housing 2 (for example, the opening 4). The outer lid locking mechanism 49 (see FIG. 5A) disposed at the front end portion is engaged with the outer lid 2A, so that the outer lid 2A is locked in a closed state.
A detergent accommodating portion 8 for accommodating a detergent used for washing and a finishing agent is disposed at a substantially central position in the front-rear direction of a portion on the left side of the opening 4 on the upper wall of the housing 2. A specific configuration of the detergent container 8 will be described in detail later with reference to FIGS. An operation display section for performing setting operations and various displays (for example, error display) regarding the operation of the drum type washing machine 1 on the front half side of the upper wall of the housing 2 on the right side of the opening 4 6 is arranged.

  The operation display unit 6 is provided with a lid opening button 6A for operating when the outer lid locking mechanism 49 (see FIG. 5A) described above is disengaged from the outer lid 2A to open the outer lid 2A. . When the lid opening button 6A is pushed while the outer lid 2A is closed, the outer lid locking mechanism 49 (see FIG. 5A) is disengaged from the outer lid 2A, and the outer cover 2A is released by the biasing force of the spring 38 (see FIG. 5A). The lid 2A slides behind the opening 4 and the opening 4 is opened. A grip portion 2C is formed at the front end of the outer lid 2A, and the opening 4 is opened by the outer lid 2A by gripping the grip portion 2C and sliding it forward of the opening 4 with the opening 4 open. Can be closed. In the state where the opening 4 is opened, the grip portion 2C abuts on the rear end edge of the opening 4 to restrict further sliding of the outer lid 2A to the rear.

  In addition, as shown in FIG. 2, a housing portion having a substantially rectangular parallelepiped shape extending in the left-right direction and having an upper surface opened on the inner side (lower side) of the rear portion of the upper wall 4 of the housing 2. 15 is provided integrally with the housing 2. The interior of the accommodating portion 15 is divided in order from the left by a partition wall 16L formed so that the upper end edge is continuous with the guide rail 21L and a partition wall 16R formed so that the upper end edge is continuous with the guide rail 21R. The chamber is divided into a first chamber 27, a second chamber 28, and a third chamber 29. As described above, since the partition wall 16L is continuous with the guide rail 21L and the partition wall 16R is continuous with the guide rail 21R, the sliding of the outer lid 2A (see FIG. 1) is performed in addition to the guide rails 21L and 21R. Also, it is guided by the upper end edges of the partition walls 16L and 16R. Further, as shown in FIGS. 5A and 5B, the outer lid 2A is arranged so as to always block the upper part of the second chamber 28 regardless of whether the opening 4 is opened or closed. As shown in FIG. 5B, when the outer lid 2 </ b> A is opened, except for the portion of the outer lid 2 </ b> A that covers the upper side of the second chamber 28, along the rear side wall of the housing 2 below the housing portion 15. Be contained.

  As shown in FIG. 2, a tap water supply valve 2 </ b> B is disposed in the first chamber 27, and a bath water pump 2 </ b> D is disposed in the third chamber 29. As shown in FIG. 1, the tap water supply valve 2 </ b> B and the bath water pump 2 </ b> D have each water supply port exposed to the outside from a corresponding position on the upper wall of the housing 2. Therefore, tap water can be supplied into the machine by connecting the tap water supply valve 2B and an external water supply facility (water tap, etc.) with a water supply hose (not shown). Similarly, bath water can be supplied into the machine by connecting to the bath water pump 2D with a water supply hose (not shown) immersed in the bathtub.

Further, the tap water supply valve 2B includes a detergent valve 55 (see FIG. 11) described later, a finishing agent valve 56 (see FIG. 11) described later, and a dehumidifying water valve 14 (see FIG. 11) described later. This is a triple valve.
The detergent valve 55 (see FIG. 11) and the finish agent valve 56 (see FIG. 11) are a detergent tap water inlet 511 (see FIG. 6) and a finish tap water inlet 512 (see FIG. 6), for example, through rubber packing or the like, the tap water can be supplied into the detergent container 8 by opening these valves.

Moreover, since the dehumidifying water valve 14 is connected to the other end of a supply pipe (not shown) whose one end is connected to a dehumidifying water supply port 36 (see FIG. 7A) described later, by opening the dehumidifying water valve 14, Tap water can be supplied into an air passage member 31 to be described later.
On the other hand, the bath water pump 2D has one end connected to the other end of a bath water supply hose (not shown) that is connected to a bath water inlet 513 (see FIG. 6), which will be described later, of the detergent container 8. By driving 2D, bath water can be supplied into the detergent container 8.

Further, as shown in FIG. 3, the second chamber 28, the first chamber 27, and the third chamber 29 are blocked by a partition wall 16L and a partition wall 16R, and the upper portion of the second chamber 28 is an outer lid. 2A (see FIG. 1) is always blocked, so even if a water leak occurs in either the tap water supply valve 2B or the bath water pump 2D, the leaked water flows into the second chamber 28. There is no risk.
(Outer tank and drum)
As shown in FIG. 4, the outer tub 7 is accommodated in a position below the accommodating portion 15 (see FIG. 2) in the housing 2. The outer tub 7 is formed in a liquid-tight and air-tight manner by closing both end faces of the substantially cylindrical peripheral wall 7A with end face walls (the left end face wall 7L and the right end face wall 7R). It arrange | positions so that it may extend (substantially horizontal). The outer tub 7 is supported by a plurality of dampers 5 (see FIG. 5A) at the lower part of the peripheral wall 7A.

  Inside the outer tub 7, a drum 10 for storing laundry therein is arranged. The drum 10 is formed by closing both end faces of a substantially cylindrical peripheral wall 10C with end face walls (left end face wall 10L and right end face wall 10R), and is arranged so that its axis extends to the left and right (substantially horizontal). Has been. In the present invention, the outer tank 7 and the drum 10 function as a processing tank.

  Rotating shafts 11L and 11R extending along the axis of the drum 10 are attached to the left and right end face walls 10L and 10R of the drum 10, respectively. The rotary shafts 11L and 11R are attached to the left and right end face walls 7L and 7R of the outer tub 7 so as to be rotatable. A drum driving motor 12 is connected to the left rotating shaft 11L by a so-called DD (direct drive) method, and the drum 10 connected to the rotating shaft 11L is axially driven by rotating the motor 12. It is designed to rotate around at the same rotational speed. On the inner surface of the peripheral wall 10C of the drum 10, three baffles 10B for lifting the laundry in the drum 10 when the drum 10 rotates are spaced from each other at equal intervals in the circumferential direction of the peripheral wall 10C (for example, 120 (Every degree), each projecting in the left-right direction.

As shown in FIG. 5A, an opening 22 for taking in and out the laundry is formed in a part of the peripheral wall 10C of the drum 10. An opening 23 is formed in the peripheral wall 7 </ b> A of the outer tub 7 at a position facing the opening 4 of the housing 2.
The opening 22 of the drum 10 can be opened and closed by a drum lid 25 that can rotate outward, and the opening 23 of the outer tub 7 can be opened and closed by an inner lid 26 that can rotate outward. It has become. By opening all of the outer lid 2A, the inner lid 26 and the drum lid 25, the laundry is put into and out of the drum 10 through the opening 4 of the housing 2, the opening 23 of the outer tub 7, and the opening 22 of the drum 10. be able to.

  Note that when the laundry is put in and out of the drum 10, the drum lid 25 cannot be opened unless the opening 22 of the drum 10 is in a position facing the opening 23 of the outer tub 7. Therefore, as shown in FIG. 4, the lower end wall 7 </ b> L of the outer tub 7 is engaged with the motor 12 when the operation of the drum type washing machine 1 is stopped, and the rotational position of the drum 10 is changed. A drum position fixing device 9 for fixing the opening 22 (see FIG. 5A) at a position facing the opening 23 (see FIG. 5A) of the outer tub 7 is attached.

  As shown in FIG. 5A, a water supply hose 17 serving as a water supply channel communicating with the detergent container 8 is connected to the rear end portion of the peripheral wall 7 </ b> A of the outer tub 7. Tap water from the tap water supply valve 2B by opening the detergent valve 55 (see FIG. 11) or the finishing agent valve 56 (see FIG. 11) or by driving the bath water pump 2D (see FIG. 1). Alternatively, bath water (hereinafter, collectively referred to as “water”) from the bath water pump 2 </ b> D (see FIG. 1) passes through the detergent container 8 (see FIG. 1) and the water supply hose 17 in the outer tub 7. To be supplied. The water supply hose 17 is, for example, a flexible bellows hose, and in addition to the role of water supply into the outer tub 7, vibration generated in the outer tub 7 when the drum 10 rotates is transmitted to the housing 2. 2, as shown in FIG. 2, the outer tub 7 is connected to an outer tub water supply port 88 formed in the peripheral wall 7 </ b> A. In the present invention, the flow path from the detergent valve 55 and the finishing agent valve 56 to the outer tank water supply port 88 via the water supply hose 17 functions as a water supply means.

  A water supply trap 24 is interposed between the water supply hose 17 and the detergent container 8 (on the downstream side of the detergent container 8). The water supply trap 24 temporarily retains the water flowing from the detergent container 8 to the water supply hose 17 and seals the space between the detergent container 8 and the water supply hose 17 with this water, so that the air in the outer tub 7 It is intended to prevent circulation with the outside. The method for supplying water to the water supply trap 24 will be described in detail later with reference to FIG. 13C.

As shown in FIG. 4, a drain port 19 is formed at the lower right side of the peripheral wall 7 </ b> A of the outer tub 7. By supplying water in a state in which the drainage valve 18 provided upstream from the joining position of a drainage hose 20 as a drainage channel and an overflow pipe 37 as a drainage channel is connected to the drainage port 19 and closed later. The water can be stored in the outer tub 7. A large number of water passage holes 10A are formed on the peripheral surface wall 10C of the drum 10 over almost the entire circumference except for the openings 22, and the water supplied into the outer tub 7 passes through the water passage holes 10A and enters the inside of the drum 10. It also comes to flow into. The water accumulated in the outer tub 7 is discharged to the outside through the drain port 19 and the drain hose 20 by opening the drain valve 18. One end of an overflow pipe 37 (see FIG. 2) is connected to the middle of the drain hose 20. As shown in FIG. 2, the other end of the overflow pipe 37 is connected to the right end surface wall 7R of the outer tub 7 at a predetermined height, and water is stored in the outer tub 7 at a predetermined water level or higher. The excess water is forcibly discharged to the outside through the overflow pipe 37 and the drain hose 20 (see FIG. 4). An overflow trap 45 as a drain trap is interposed between the overflow pipe 37 and the drain hose 20 (see FIG. 4). The overflow trap 45 is formed in a V shape that bends downward, and in this V-shaped portion 95, the water flowing through the overflow pipe 37 and / or the drainage hose 20 (see FIG. 4) is temporarily retained. This water prevents the air in the outer tub 7 from flowing outside through the overflow pipe 37 and / or the drainage hose 20. The method for supplying water to the overflow trap 45 will be described in detail later with reference to FIGS. 13A and 13B.
(Detergent housing)
6 is a right side cross-sectional view of the detergent container housing chamber 81 with the detergent container 80 mounted thereon, FIG. 7 is an external perspective view of members constituting the water injection unit 82, and FIG. It is sectional drawing cut | disconnected by the surface along AA in FIG. In FIG. 8, a cylindrical portion 431 and a cap 432, which will be described later, are also shown in cross section for convenience of explanation.

  As shown in FIG. 6, the detergent container 8 is integrally formed with the detergent container 80 in which the powder detergent, the liquid detergent, the liquid bleach and the finishing agent are stored, and the housing 2, and the detergent container 80 is detachably accommodated. A detergent container storage chamber 81, a water injection unit 82 for supplying water to the detergent container 80, and a detergent lid 94 for closing the upper portion of the detergent container storage chamber 81 in which the detergent container 80 is stored. It has. In this invention, the detergent container 80 functions as a detergent container.

The detergent container storage chamber 81 is formed in a concave shape extending in the front-rear direction and having a bottom wall inclined downward toward the rear. An outlet 81A is provided at the lower end of the rear wall of the detergent container storage chamber 81, and the outlet 81A is connected to the inside of the machine.
The water injection unit 82 is disposed on the left side wall of the detergent container housing chamber 81, and has a structure in which a main plate 82A and a sub member 82B, which are long and thin in the front-rear direction, are bonded to each other in the left-right direction. A hollow water passage is formed between the two members 82A and 82B (see FIG. 8).

  Specifically, as shown in FIG. 7, a rib for forming a water passage is formed in a complicated manner inside the main member 82A located on the right side. Thus, in the state where the main member 82A and the sub member 82B are bonded together, the tap water for detergent communicated with the tap water inlet 511 for detergent opened at the rear end portion of the main member 82A in the water injection unit 82. A water flow path 521, a bath water flow path 523 communicating with a bath water flow inlet 513 opened obliquely above and behind the tap water inlet 511 for detergent, and a tap water flow for finishing agent opened on the front side of the detergent tap water flow inlet 511 A finishing agent water passage 522 communicating with the inlet 512 is formed. And the 1st water outlet 534 and the 2nd water outlet 531 are provided in order in the tap water channel 521 for detergents along the flow direction of water. In addition, an auxiliary water outlet 536 is provided at the end of the detergent tap water passage 521 in the water flow direction. The bath water passage 523 is provided with a third water outlet 533 and a fourth water outlet 532 in order along the direction of water flow. The finishing agent water passage 522 is provided with a fifth water outlet 535. The fifth water outlet 535 includes two lower water outlets 535A arranged along the lower end edge of the finishing agent water passage 522 and an upper water outlet 535B arranged above the lower water outlet 535A. ing.

  As described above, the detergent tap water inlet 511 and the finishing agent tap water inlet 512 are connected to the detergent valve 55 (see FIG. 11) and the finishing agent valve 56 (see FIG. 11), respectively. Therefore, tap water from the tap water supply valve 2B can be selectively supplied to the detergent tap water inlet 511 and the finishing agent tap water inlet 512 by appropriately opening and closing these valves. One end of the bath water supply hose (not shown) is connected to the bath water inlet 513. The other end of the bath water supply hose (not shown) is connected to the bath water pump 2D, and bath water can be supplied to the bath water inlet 513 by driving the bath water pump 2D. .

  As shown in FIGS. 6 and 8, the detergent container 80 is formed in a box shape that is long in the front-rear direction and opened at the top, and the inside is a powder detergent for containing the powder detergent from the front side. A container 85, a liquid detergent container 86 for storing a liquid detergent or a liquid bleach (a liquid agent to be added simultaneously with the detergent during washing), and a soft finish (a liquid agent to be charged at the time of final rinsing). And a finishing agent storage portion 87.

  An opening is formed in the left side wall of the powder detergent container 85 at positions facing the second water outlet 531 and the fourth water outlet 532 in a state where the detergent container 80 is mounted in the detergent container storage chamber 81. (The opening is not shown here, but is formed like an opening 50 formed at a position facing the upper water discharge port 535B as shown in FIG. 8, for example), and a powder detergent container The inside of 85, the tap water passage 521 for detergents, and the bath water passage 523 are in communication. Therefore, tap water from the detergent tap water passage 521 or bath water from the bath water passage 523 can be supplied into the powder detergent container 85. On the other hand, since the opening as described above is not formed at the position facing the auxiliary water outlet 536 in the left side wall of the powder detergent container 85, the water flowing out from the auxiliary water outlet 536 It is supplied directly into the detergent container storage chamber 81 without going through 85.

  The bottom wall of the powder detergent container 85 is gently inclined downward toward the rear, and a detergent outlet 412 is opened at the bottom of the rear wall. When the powder detergent is accommodated in the powder detergent accommodating portion 85 and tap water or bath water flows in, the inflowed water flows with the powder detergent and flows out into the detergent container accommodating chamber 81 through the detergent outlet 412. In this case, since the detergent that flows out is a powder detergent, the powder detergent that has fallen into the detergent container housing chamber 81 is not dissolved and tends to remain on the bottom wall of the detergent container housing chamber 81. In particular, in the detergent container accommodating chamber 81, if the powder detergent flows to the front side of the detergent outlet 412, it is difficult to push the detergent to the outlet 81A by the water flowing out from the detergent outlet 412. Even in such a case, as described above, since the auxiliary water outlet 536 is provided in the water injection unit 82, water is supplied from the auxiliary water outlet 536 to the front end portion of the detergent container housing chamber 81. Thus, the powder detergent remaining on the bottom wall of the detergent container housing chamber 81 can smoothly flow out from the outlet 81A.

  On the left side wall of the liquid detergent container 86, an opening is formed at a position facing each of the first water outlet 534 and the third water outlet 533 when the detergent container 80 is mounted in the detergent container storage chamber 81. (The opening is not shown here, but is formed like an opening 50 formed at a position facing the upper water discharge port 535B as shown in FIG. 8, for example), and a liquid detergent. The inside of the accommodating portion 86 is in communication with the detergent tap water passage 521 and the bath water passage 523. Therefore, tap water from the detergent tap water passage 521 or bath water from the bath water passage 523 can be supplied into the liquid detergent container 86.

  As shown in FIG. 8, an opening 50 is formed in the left side wall of the finishing agent storage portion 87 at a position facing the upper water discharge port 535B in a state where the detergent container 80 is mounted in the detergent container storage chamber 81. The interior of the finishing agent container 87 and the finishing agent water passage 522 are in communication with each other. Therefore, when an amount of tap water sufficient to fill the finish agent water passage 522 is supplied, the tap water flows out from the upper water discharge port 535B and is supplied into the finish agent containing portion 87 through the opening 50. The In addition, since the opening 50 is formed above the lower water outlet 535A, more specifically, when the amount of tap water supplied is small, the water level of the tap water is located at the upper water outlet 535B. If it is less than the height, the tap water flows out only from the lower water outlet 535A and is supplied directly into the detergent container storage chamber 81 without passing through the finish agent storage section 87. In the present invention, the above-described flow path of the finishing agent water passage 522 → the lower water outlet 535A → the detergent container housing chamber 81 functions as a bypass water supply passage.

Further, as shown in FIG. 6, cylindrical portions 421 and 431 each having a vertically penetrating center are erected on the bottom walls of the liquid detergent storage portion 86 and the finishing agent storage portion 87, respectively. Cylindrical caps 422 and 432 which cover the upper part leaving the base part are covered. A narrow gap is formed between the inner peripheral side wall surfaces of the caps 422 and 432 and the outer peripheral side wall surfaces of the cylindrical portions 421 and 431, and the liquid detergent container 86 is interposed through the gap and the through holes of the cylindrical portions 421 and 431. In addition, the inner side and the outer side of the finishing agent storage portion 87 communicate with each other. As a result, when water of a predetermined water level or higher is stored in the liquid detergent storage portion 86, the water flows along with the liquid detergent into the detergent container storage chamber 81 through the through hole of the cylindrical portion 421 by the siphon action. Similarly, when water of a predetermined water level or higher is accumulated in the finishing agent storage portion 87, the water flows along with the finishing agent into the detergent container storage chamber 81 through the through hole of the cylindrical portion 431 by the siphon action.
(Drying unit)
FIG. 9 is a perspective view of the outer tub 7, the drying unit 3, and the peripheral parts as viewed from the rear upper side and the right side, and FIG. 10 is a right side view of the outer tub 7, the drying unit 3, and the peripheral parts shown in FIG. FIG.

As shown in FIG. 9, the drum type washing machine 1 can execute a drying process for drying laundry, and the right end surface wall 7 </ b> R of the outer tub 7 has a drying unit 3 for a drying function. It is attached from the outside.
The drying unit 3 sucks the air in the outer tub 7 and guides it upward, a fan 32 for sending the air from the air passage member 31 into the outer tub 7, and the fan 32. An induction hood 33 for guiding the fed air into the outer tub 7 and a pair of heaters 34A and 34B (see FIG. 10) for warming the air fed into the outer tub 7 are provided. In the present invention, the air passage member 31 and the induction hood 33 function as a circulation air passage for introducing the air flowing inside, that is, the wind into the outer tub 7. The fan 32 is disposed on the upper part of the air passage member 31 so that a substantially upper half portion thereof is accommodated in the second chamber 28 (see FIG. 3) of the accommodating portion 15, and is rotationally driven by the blower motor 35. . Further, the heaters 34A and 34B (see FIG. 10) are arranged side by side in the induction hood 33.

  Here, referring to FIG. 4, an exhaust port 71 having a substantially rectangular shape when viewed from the front is formed, for example, at a substantially central portion in the left-right direction at the rear lower portion of the peripheral wall 7 </ b> A of the outer tub 7. A suction port 30 (see FIG. 10) is formed at the lower end of the air passage member 31, and the exhaust port 71 and the suction port 30 (see FIG. 10) are connected by a connecting pipe 72 extending in the left-right direction. The air passage member 31 and the outer tub 7 are in communication. Therefore, when the fan 32 (see FIG. 9) is driven to rotate, the air passage member 31 located upstream of the fan 32 as viewed in the direction in which the wind flows becomes negative pressure. The air can be taken into the drying unit 3 (in the air passage member 31) through the exhaust port 71 and the connecting pipe 72.

  An opening 7B is formed at the central portion of the right end surface wall 7R of the outer tub 7, and a blower outlet 41 (see FIG. 10) is formed at the lower end of the guide hood 33 (see FIG. 10). 41 and the opening 7 </ b> B (see FIG. 10) of the outer tub 7 communicate with each other, so that the inside of the guide hood 33 (see FIG. 10) and the inside of the outer tub 7 are in communication. Thereby, as shown in FIG. 9, the air taken into the air passage member 31 from the outer tub 7 is sent into the induction hood 33 by the fan 32 and further blown out from the outlet 41 into the outer tub 7. The wind can be circulated in a circulation air passage formed by the air passage member 31, the fan 32 and the induction hood 33, that is, the drying unit 3 and the outer tub 7. Further, since the opening 10D is formed at the center of the right end surface wall 10R of the drum 10 at a position facing the opening 7B of the outer tub 7, the wind circulating in the circulation air passage is washed in the drum 10 Also supplied.

  For example, during the drying process, the air circulating in the circulation air passage is heated by the heater 34 and sent from the blower outlet 41 (see FIG. 10) into the drum 10 through the openings 7B and 10D of the outer tub 7 and the drum 10. While rotating the drum 10. As a result, the operation of lifting the laundry in the drum 10 by the baffle 10B and letting it fall naturally from a certain height is repeated, so that the heated wind can be blown uniformly over the laundry, and the laundry is improved. Can be dried.

  It should be noted that by energizing only one heater of the pair of heaters 34 (heaters 34A and 34B) shown in FIG. 10, the heater 34 is driven "weak" (for example, about 700 W) to relatively low temperature. Wind can be supplied into the drum 10, and by energizing both heaters, the heater 34 is driven “strongly” (for example, about 1400 W) to supply relatively hot air into the drum 10. Be able to. Further, both heaters 34A and 34B are energized, and half-wave control (control for driving the heater using alternating current every half cycle) is performed on the AC current flowing through one of the heaters. It is also possible to drive 34 at “medium” (for example, about 1000 W) to supply wind in the middle of the temperature between “weak” and “strong” into the drum 10.

  Referring again to FIG. 9, the air passage member 31 is formed with the suction port 30 described above at the lower end, the lower end is connected to the right end surface wall 7 </ b> R of the outer tub 7, and the upper end is the right end surface wall of the outer tub 7. A first air passage member 311 extending upward along 7R and an upper end portion of the first air passage member 311 are provided so as to project to the left so as to face the peripheral wall 7A of the outer tub 7. The second air passage member 312 is integrally formed. The first air passage member 311 has a flat shape in which the thickness in the left-right direction is smaller than the thickness in the front-rear direction. On the other hand, the second air passage member 312 has a flat shape in which the thickness in the front-rear direction is smaller than the thickness in the left-right direction.

Referring to FIG. 10, the left side wall of the first air passage member 311 is for supplying water into the first air passage member 311 at a position slightly lower than the coupling portion with the second air passage member 312. A dehumidified water supply port 36 is formed. As described above, the other end of the supply pipe (not shown) whose one end is connected to the dehumidification water valve 14 (see FIG. 11) is connected to the dehumidification water supply port 36 from the outside, and the dehumidification water valve 14 ( 11) is opened, a predetermined amount (for example, about 0.5 liters per minute) of cooling water (tap water) is supplied into the first air passage member 311 via the supply pipe and the dehumidified water supply port 36. It has come to flow into. In the present invention, the flow path from the dehumidification water valve 14 (see FIG. 11) to the dehumidification water supply port 36 functions as a water supply means and a dehumidification water supply means. During the drying process, the first air path member 311 is supplied with cooling water from the dehumidified water supply port 36 by opening the dehumidified water valve 14 (see FIG. 11). Therefore, the first air path member 311 functions as a heat exchange unit for cooling the wind containing moisture (water vapor) coming out of the laundry and condensing the water vapor.
(Ozone generator)
Referring to FIG. 9, in this drum type washing machine 1, as an example of a gas for purifying laundry, an ozone generator 42 that generates ozone, an ozone generator 42, and an air passage member 31 are communicated. And an introduction pipe 43 for guiding the ozone generated by the ozone generator 42 into the air passage member 31. In addition, washing, deodorization, sterilization, or fragrance (applying a pleasant odor to the laundry) can be used to purify the laundry using gas. In the present invention, the ozone generator 42 and the introduction pipe 43 function as gas supply means.

  Here, referring to FIG. 2, the ozone generator 42 is accommodated in the second chamber 28 in the accommodating portion 15 of the housing 2. More specifically, it is adjacent to the tap water supply valve 2B across the partition wall 16L, and adjacent to the fan 32 on the left side in the second chamber 28. The ozone generator 42 is located above the outer tub 7, the air passage member 31, and the induction hood 33.

The ozone generator 42 is provided with an ozone substrate (not shown) that actually generates ozone. When a high voltage is applied to the ozone substrate, silent discharge occurs, Ozone is generated in the air.
The introduction pipe 43 has one end connected to the left end of the ozone generator 42 and the other end connected to the left side wall of the second air passage member 312 of the air passage member 31. And the air passage member 31, that is, the inside of the circulation air passage including the drying unit 3 is communicated. The introduction pipe 43 is gently bent downward from the one end portion described above, forms a path that is bent in the middle, extends further downward, and then bends again to reach the other end portion described above. Therefore, the air containing ozone generated by the ozone generator 42 flows downward along the introduction pipe 43 and is supplied into the air passage member 31. As described above, when the fan 32 is driven to rotate, the air passage member 31 has a negative pressure, so that the supply of ozone from the ozone generator 42 to the air passage member 31 is promoted.
<Drum-type washing machine washing operation>
FIG. 11 is a block diagram showing an electrical configuration of the drum type washing machine 1, and is a view showing a part related to the present invention.

As shown in FIG. 11, the drum type washing machine 1 includes a control unit 40 as a water supply control unit, which is configured by a microcomputer or the like, for example.
The control unit 40 is configured by, for example, a microcomputer and includes a CPU 51, a ROM 52, a RAM 53, and a timer 54. The operation of each process such as washing, rinsing, dewatering and drying of the drum type washing machine 1 is controlled by the control unit 40.

  An operation display unit 6 (see FIG. 1) is connected to the control unit 40, and the user can cause the drum type washing machine 1 to perform a desired operation by operating the operation display unit 6. Further, the control unit 40 includes a motor 12, a blower motor 35, a heater 34, a detergent valve 55, a finishing agent valve 56, a bath water pump 2D, a dehumidifying water valve 14, a drain valve 18, an outer lid lock mechanism 49, and ozone generation. The device 42 and the water level sensor 47 are connected to each other via a load driving unit 48.

FIG. 12 is a flowchart showing a flow of control by the control unit 40 when a predetermined washing operation by the drum type washing machine 1 is started.
Hereinafter, with reference to FIG. 11 and FIG. 12, the control by the control part 40 in each driving | operation process in the drum type washing machine 1 is demonstrated.
(Washing process)
When the operation of the drum type washing machine 1 is started, a first washing process is first performed (step S1). When the first washing process is started, the detergent valve 55 is opened, or the bath water pump 2D is driven, so that the detergent water is discharged via the detergent tap water passage 521 or the bath water passage 523. Water is supplied into the tank 7. At this time, the powder detergent and the liquid detergent previously put in the powder detergent container 85 and the liquid detergent container 86 shown in FIG. 6 are respectively dissolved in the supplied water, and the water in which these detergents are dissolved flows out. It flows out of 81 A and is stored in the outer tub 7 through the water supply trap 24 and the water supply hose 17. After the water supply into the outer tub 7 is completed, a first intermittent control (for example, 10 seconds on to 3 seconds off) for alternately rotating / reversing the motor 12 at 45 rpm with a predetermined stop time therebetween, and the motor 12 Second intermittent control (for example, 10 seconds on to 3 seconds off) alternately rotating / reversing at 30 rpm with a predetermined stop time and normal rotation alternately with motor 12 at 60 rpm with a predetermined stop time The third intermittent control to be reversed (for example, 10 seconds on-3 seconds off) is repeatedly performed in a predetermined order. In the first intermittent control, what is called tapping is performed by repeating an operation (so-called tumbling) in which the laundry in the drum 10 is lifted by the baffle 10B and naturally falls from a certain height. In the second intermittent control, the laundry at the bottom of the drum 10 is rolled by the baffle 10 </ b> B so that so-called rice scrub washing is performed. In the third intermittent control, the laundry in the drum 10 is rotated in a state of sticking to the peripheral wall 10C of the drum 10, and the water stored in the outer tub 7 when the laundry comes to the bottom of the outer tub 7 is stored. The water absorbed in the laundry and the water absorbed in the laundry is removed from the laundry by centrifugal force, so that the dirt contained in the laundry is removed from the laundry together with the water. Then, when the above-described operation is performed for a predetermined time (for example, 6 minutes), the first washing process ends. When the first washing step is completed, the water stored in the outer tub 7 is drained, and the laundry in the drum 10 is in a state containing water and a detergent component. And it transfers to a 2nd washing process (step S2).

When the second washing step is started, steam is supplied from the drying unit 3 shown in FIG. 4 into the outer tub 7, and the drum 10 is rotated while warming the laundry. Thereby, the water contained in the laundry is warmed, and the laundry containing the warmed water rubs against the other laundry or the inner surface of the drum 10 as the drum 10 rotates, A so-called steam cleaning, which is struck, is performed. Then, when the above-described operation is performed for a predetermined time (for example, 14 minutes), the second washing process ends. Note that the steam is generated when the cooling water supplied from the dehumidified water supply port 36 shown in FIG. 10 into the first air passage member 311 is atomized and heated and evaporated by the heater 34. Thus, in the second washing step, since it is not necessary to supply water into the outer tub 7, when washing is performed by rotating the drum 10 with water stored in the outer tub 7 (for example, the above-described second washing step). The amount of water used can be reduced as compared with 1 washing step). Then, when the second washing process ends, the process proceeds to an intermediate dehydration process (step S3).
(Intermediate dehydration process)
When the intermediate dehydration process is started, the drum 10 shown in FIG. 4 is rotated at a high speed (for example, 300 to 1000 rpm), so that water contained in the laundry in the drum 10 is squeezed out by centrifugal force. The water squeezed out from the laundry is scattered to the outer tub 7 side through the water passage hole 10 </ b> A of the drum 10 and is discharged from the drain outlet 19. By this intermediate dehydration step, detergent components contained in the laundry are squeezed out together with water contained in the laundry. When the intermediate dehydration process is completed, the process proceeds to a rinsing process (step S4).
(Rinsing process)
When the rinsing process is started, a predetermined amount of water is supplied into the outer tub 7 after the detergent valve 55 is opened or the bath water pump 2D is driven to supply water into the outer tub 7. When the drum 10 is rotated in a state where water is stored, the laundry in the drum 10 is tumbled and rinsed. Thereafter, when a predetermined time elapses, the drum 10 is once stopped. Then, after the water in the outer tub 7 is drained and supplied again, rinsing is performed again. When the above-described operation is performed a plurality of times (for example, twice), the rinsing process ends. In the final rinsing step (for example, the second time), the water supply to the outer tub 7 is performed by opening the finishing agent valve 56 in addition to the detergent valve 55. Thereby, the soft finishing agent previously put in the finishing agent storage portion 87 is dissolved in the supplied water, and the water in which the soft finishing agent is dissolved flows out from the outlet 81A and is supplied into the outer tub 7. This water rinses the laundry. Further, at the end of the water supply in the final rinsing process, a part of the supplied water stays in the water supply trap 24 and the space between the outer tub 7 and the detergent container 8 is sealed. And when a rinse process is complete | finished, it transfers to the final dehydration process (step S5).
(Final dehydration process)
When the final dehydration process is started, the drum 10 is rotated at a high speed (for example, 300 to 1000 rpm), so that water contained in the laundry in the drum 10 is squeezed out by centrifugal force and drained from the drain hose 20. Is done. At the end of drainage in this final dehydration step, a part of the drained water stays in the V-shaped portion 95 of the overflow trap 45 shown in FIG. 2, and between the overflow pipe 37 and the drainage hose 20 and the outside, That is, the space between the outer tub 7 and the outside is sealed. Then, when the final dehydration process is completed, the process proceeds to a drying process (step S6).
(Drying process)
When the drying process is started, wind heated by the heater 34 shown in FIG. 10 is sent from the drying unit 3 into the outer tub 7, and the drum 10 is rotated to tumbl the laundry in the drum 10. The Thereby, the laundry in the drum 10 is evenly exposed to the heated wind, and drying is performed.

  In the drying process, the blower motor 35 shown in FIG. 10 is driven (for example, 4500 rpm), and the heater 34 is driven “strongly” by energizing the heater 34 (34A and 34B). Thereby, during the drying process, the air containing moisture from the laundry in the drum 10 flows from the inside of the outer tub 7 through the exhaust port 71 (see FIG. 4) and the connection pipe 72 (see FIG. 4). It flows into the member 31 (in the first air passage member 311), is heated by the heater 34, and is sent again into the outer tub 7 (in the drum 10). Further, during the drying process, the dehumidifying water valve 14 is opened, and the cooling water is supplied from the dehumidifying water supply port 36 into the first air path member 311, so that moisture is removed in the first air path member 311. The contained air is cooled by the cooling water, and the moisture contained in the air is condensed by heat exchange. Accordingly, the air that has flowed into the first air passage member 311 is dehydrated in the process of passing through the first air passage member 311, and then heated by the heater 34, and again in the outer tub 7 (inside the drum 10). ). The moisture condensed by the heat exchange is condensed on the inner wall surface of the first air passage member 311 and flows down along the inner wall surface. Then, the water that has flowed down the inner wall surface of the first air passage member 311 to the bottom of the first air passage member 311 flows out of the suction port 30 together with the cooling water, and is connected to the outer tank via the connection pipe 72 and the exhaust port 71. After draining into 7, the water is drained from the drain 19.

Before the end of the drying process, a so-called cool-down operation is performed for a predetermined time period in which unheated air is supplied into the drum 10 to cool the dried laundry to a predetermined temperature. During this cool-down operation, the ozone generator 42 is turned on to generate ozone. The generated ozone flows into the air passage member 31 through the introduction pipe 43, so that it is sent into the outer tub 7 (in the drum 10) together with the air flowing in the circulation air passage described above, and is bathed in the laundry. As a result, the soil component, odor component, and germ component remaining in the laundry are cleaned, deodorized, or sterilized by being oxidized by the supplied ozone. While ozone is being supplied into the outer tub 7, the detergent valve 55, the finishing agent valve 56, the dehumidifying water valve 14 and the drain valve 18 are closed, and the bath water pump 2D is stopped. Further, water stays in the water supply trap 24 at the time of water supply in the washing step, and water stays in the overflow trap 45 at the time of drainage. Thereby, the inside of the outer tank 7 becomes an airtight state, and there is no possibility that ozone leaks to the outside. In addition, while ozone is being supplied into the outer tub 7, and until all of the supplied ozone disappears due to the oxidation reaction, and the ozone concentration falls to a level that does not affect the human body, the control unit As shown in FIG. 9, 40 locks the outer lid 2A (see FIG. 1) closed by operating the outer lid locking mechanism 49.
(Trap water supply process)
In addition to the washing process, the rinsing process, the dehydrating process and the drying process as described above, the drum type washing machine 1 supplies ozone without using water to purify the laundry (for example, sterilization / deodorization) Etc.) can be performed (from the image of washing laundry with air containing ozone, it can also be referred to as an “air wash process”).

  For example, when the ozone cleaning step is performed as an additional operation of a normal washing operation, the ozone cleaning step is performed before the washing step, that is, before the rinsing step or the final dehydration step. In addition, although it is not necessary to wash the laundry, a course that only performs the ozone cleaning process to deodorize and deodorize odors attached to the laundry (this course is referred to as the “air wash course” from its image) This can also be done when “Yes” is selected. Therefore, at the time of starting the ozone cleaning process, water may not stay in the water supply trap 24 (see FIG. 2) and the overflow trap 45 (see FIG. 2). Therefore, prior to the ozone cleaning process, the detergent tank 55, the finishing agent valve 56, and the dehumidifying water valve 14 are used before the ozone cleaning process is started in order to bring the inside of the outer tub 7 into the airtight state described above. And the trap water supply process in which water is retained in the water supply trap 24 and the overflow trap 45 is performed by opening and closing the drain valve 18 as appropriate. In addition, when the ozone cleaning process is performed as an additional operation of the normal washing operation, it may be performed during the cool-down operation in the drying process as described above, or both before the washing process and during the cool-down operation. It may be done. The longer the ozone supply time, the more the laundry is cleaned. Moreover, in this drum type washing machine 1, the function of purifying the laundry with ozone can also cope with the laundry that cannot be wetted with water.

Hereinafter, water supply control in the trap water supply process will be described with reference to FIGS. 13A, 13B, and 13C.
FIG. 13A is a flowchart showing the first half of the water supply control in the trap water supply process, FIG. 13B is a flowchart showing the second half of the water supply control in the trap water supply process, and FIG. 13C shows the water supply trap 24 in the trap water supply process. It is a flowchart which shows water supply control.

When the trap water supply process is started, first, water supply trap water supply control to the water supply trap 24 is started (step S101).
Here, with reference to FIG. 13C, the water supply trap water supply control will be described. The water supply trap water supply control is a control for causing the water supply trap 24 to retain water by appropriately opening and closing the detergent valve 55 or the finishing agent valve 56. When the water supply trap water supply control is started, n = 0 is set (step S201). Here, n indicates the number of times processing in steps S203 to S206 described later has been performed. Next, it is determined whether or not n ≧ 8 (step S202). In the determination in step S202 performed first, since n = 0 as described above, it is determined that n ≧ 8 is not satisfied (No in step S202), and the finisher valve 56 is opened for 0.1 second. (Step S203), the finishing agent valve 56 is "closed" (Step S204). In this way, by setting the time during which the finish agent valve 56 is “open” to a minute time of 0.1 seconds, the finish agent tap water inlet 512 leads to the finish agent water passage 522. Only a small amount of water is allowed to flow. Therefore, the water flows through a position lower than the height of the upper water outlet 535B of the finishing agent water passage 522, flows out from the lower water outlet 535A, and does not pass through the finishing agent storage portion 87, and is contained in the detergent container storage chamber 81. The water is supplied to the water supply trap 24 through the inside. That is, water is supplied to the water supply trap 24 through a bypass water supply passage that does not pass through the finishing agent storage portion 87. As a result, tap water not containing the finishing agent can be stored in the water supply trap 24. Thereafter, the finish agent valve 56 is kept in the “closed” state for 10 seconds (step S205). The time of 10 seconds is a time required for almost all the water flowing in the finishing agent water passage 522 to flow out from the lower water outlet 535A, and is not particularly limited to 10 seconds, and satisfies the above condition. The time may be 10 seconds or more or 10 seconds or less. Thereafter, n = n + 1 is set on the assumption that the processing in steps S203 to S205 has been executed once (step S206). For example, since n = 0 is set when the feed water supply control is started (step S201), n = 1 is set in the process of step S206. Then, the determination or processing in step S202 to step S206 is repeated until n ≧ 8. Thereafter, when it is determined that n ≧ 8 (Yes in step S202), the water supply trap water supply control ends. That is, by repeating the process of step S202-step S206 8 times, water is stored in the water supply trap 24, and the flow path between the outer tub 7 and the detergent container 8 is sealed with water. Thus, even if ozone is supplied into the outer tub 7, it is possible to prevent the ozone from leaking outside through the path of the outer tub 7 → the water supply hose 17 → the water supply trap 24 → the detergent container 8 → the outside. it can. In addition, this water supply trap water supply control is started by the process in step S101 shown to FIG. 13A, and is performed in parallel with the judgment or process after step S102 mentioned later. In step S202, n ≧ 8 is determined. However, for the value of n, water necessary for sealing the flow path between the outer tub 7 and the detergent container 8 can be accumulated. If possible, there is no particular limitation. For example, 0.1 seconds in the process of step S203 may be further shortened to satisfy n ≧ 9, or 0.1 seconds in the process of step S203 may be slightly increased to satisfy n ≧ 7. In addition, when the water supply capacity of an external water supply facility (such as a water tap) is high, n can be simply set to less than 8.

  Again, a description will be given with reference to FIG. 13A. As described above, in parallel with the start of the feed trap water supply control shown in FIG. 13C, has the drain valve 18 been “opened” (step S102), and has passed 30 seconds since the drain valve 18 was “opened”? It is determined whether or not (step S103). When 30 seconds have not elapsed (No in step S102), the state of the drain valve 18 “open” is maintained until 30 seconds have elapsed. When the drum type washing machine 1 is continuously operated, water may adhere to, for example, the inner peripheral surface of the outer tub 7 at the start of the trap water supply process. If these waters remain in the outer tub 7, they accumulate in the lower part of the outer tub 7 as time passes. Therefore, in the determination after step S103, the water stored in the outer tub 7 is as if There is a case where it is erroneously detected that the water is supplied from the dehumidified water supply port 36. However, as described above, first, by opening the drain valve 18 for 30 seconds, it is possible to substantially drain the water, and the reliability of the determination after step S103 can be improved. When 30 seconds have elapsed after the drain valve 18 is opened (Yes in step S102), the water level in the outer tub 7 is read by the water level sensor 47, and it is determined whether or not the water level is below the reset water level. (Step S104). Here, the reset water level is the lowest water level that the water level sensor 47 can accurately measure. That is, if the water level in the outer tub 7 is equal to or higher than the reset water level, the water level sensor 47 can measure more precisely than the case where the water level is equal to or lower than the reset water level.

  When the water level in the outer tub 7 is equal to or lower than the reset water level (Yes in step S104), the drain valve 18 is closed (step S105), and the water level L1 in the outer tub 7 at that time is read (step S106). ), The dehumidifying water valve 14 is opened (step S107). By opening the dehumidifying water valve 14, the dehumidifying water supplied from the dehumidifying water supply port 36 is supplied to the lower portion of the outer tub 7 through the air passage member 31 as water to be retained in the overflow trap 45. Can be stored.

  On the other hand, if it is determined in step S104 that the water level in the outer tub 7 is not equal to or lower than the reset water level (No in step S104), it is determined whether or not the drainage operation is the fifth time continuously (step S108). That is, in the trap water supply process, it is determined whether or not the flow of Step S104 → Step S108 → Step S110 → Step S111 → Step S112 → Step S104 has been performed four times in succession. When the drainage operation is the fifth consecutive time (Yes in step S108), for example, by sounding a buzzer (not shown) or displaying an error display number on the operation display unit 6 to notify the drainage abnormality. Is performed (step S109). That is, in step S104, if the water level in the outer tub 7 is not equal to or lower than the reset water level, it is determined five times continuously. This means that the drain valve 18 has failed and the drainage has failed, or the laundry has become wet. The water level in the outer tub 7 has risen as water contained in the laundry continues to drip on the bottom surface of the outer tub 7 or the water level sensor 47 may be broken. As described above, the abnormality notification is performed. On the other hand, if the drainage operation is not the fifth consecutive time (No in step S108), has the drain valve 18 been “opened” (step S110) and has passed 10 seconds since the drain valve 18 was “opened”? It is determined whether or not (step S111). When 10 seconds have not elapsed (No in step S111), the state of the drain valve 18 “open” is maintained until 10 seconds have elapsed. When 10 seconds have elapsed since the drain valve 18 was opened (Yes in step S111), the drain valve 18 was closed (step S112), and the water level in the outer tub 7 was again below the reset water level. It is determined whether or not there is (step S104). When the water level is lower than the reset water level (Yes in step S104), the drain valve 18 is closed (step S105), and the processes in steps S106 and S107 are performed in the same manner as described above.

  Subsequently, referring to FIG. 13B, in the process of step S107, it is determined whether or not the water level in the outer tub 7 is equal to or lower than the reset water level after the dehumidifying water valve 14 is opened (step S113). . When the water level is not lower than the reset water level (No in step S113), it is determined that there is no water supply abnormality, the dehumidifying water valve 14 is closed (step S122), and the above-described water supply trap water supply control (see FIG. 13C) ends. It is determined whether or not there is (step S123). And when feed water trap water supply control is not complete | finished (No of step S123), it will be in a standby state until it complete | finishes. Thereafter, when it is determined that the water supply trap water supply control has been completed (Yes in step S123), the process proceeds to step S118.

  On the other hand, when the water level in the outer tub 7 is equal to or lower than the reset water level in the determination in step S113 (Yes in step S113), after the dehumidifying water valve 14 is opened, that is, from the dehumidifying water supply port 36. It is determined whether or not a predetermined time as the first time, for example, 120 seconds has elapsed since the start of water supply (step S114). If 120 seconds have not elapsed (No in step S114), 120 seconds have elapsed. Until this is done, the dehumidified water valve 14 is kept open. When 120 seconds elapse after the dehumidifying water valve 14 is opened (Yes in step S114), the dehumidifying water valve 14 is closed (step S115), and the water level L2 in the outer tub 7 at that time is set. Is read (step S116), and it is determined whether or not the difference from L1 is L2−L1 ≧ X (step S117). When L2−L1 ≧ X is not satisfied (No in step S117), for example, a buzzer (not shown) is sounded or an error display number is displayed on the operation display unit 6 to notify a water supply abnormality (water supply error processing). ) Is performed (step S119). Here, X is an approximate amount of water (predetermined threshold) required for the overflow trap 45 to seal the flow path between the outer tub 7 and the outside, and is stored in the control unit 40 in advance. That is, when L2−L1 ≧ X is not satisfied, there is a possibility that the dehumidifying water valve 14 is broken and water is not accumulated in the outer tub 7. Therefore, even if the drain valve 18 is “open” in such a state, the overflow trap 45 cannot seal the flow path between the outer tub 7 and the outside, and is supplied to the outer tub 7 in the ozone cleaning process. Since ozone may leak outside through the path of the outer tub 7 → the overflow pipe 37 → the drainage hose 20 → the outside, ozone leakage can be prevented beforehand by notifying the water supply abnormality.

  On the other hand, if L2−L1 ≧ X (Yes in step S117), whether or not 30 seconds have elapsed since the drain valve 18 is opened (step S118) and the drain valve 18 is opened. A determination is made (step S120). When 30 seconds have not elapsed (No in step S120), the state of the drain valve 18 "open" is maintained until 30 seconds have elapsed. Then, when 30 seconds have elapsed after the drain valve 18 is “opened” (Yes in step S120), the drain valve 18 is “closed” (step S121), and the trap water supply process ends.

  Further, as described above, in the determination in step S113, it is determined that the water level in the outer tub 7 is not lower than the reset water level (No in step S113), and it is determined that the water supply trap water supply control is finished (step S123). When the process proceeds to step S118, the drain valve 18 is opened (step S118) and 30 seconds have elapsed since the drain valve 18 was opened (step S120). Yes), the drain valve 18 is “closed” (step S121), and the trap water supply process ends.

In this way, after storing a predetermined amount of water in the outer tub 7, the drain valve 18 is opened, and the drained hose 20 is allowed to flow out at once, so that the drained water is discharged into the drain hose 20 and the overflow pipe 37. In addition to the downstream of the drainage hose 20 (external side), it flows out to the upstream side of the overflow pipe 37 (overflow trap 45 side). As a result, water can be retained in the V-shaped portion 95 of the overflow trap 45 using the water flowing out to the overflow pipe 37 side.
<Effect>
As described above, by performing the trap water supply process in which water is stored in the overflow trap 45 before the ozone cleaning process is started, the outer tank 7 → the overflow pipe 37 → the drain hose 20 → the path communicating with the outside A part of the water is sealed with water stored in the overflow trap 45. Therefore, even if the ozone cleaning process is subsequently performed, it is possible to prevent ozone from leaking outside the drum-type washing machine 1 through a path communicating with the outer tub 7 → the overflow pipe 37 → the drain hose 20 → the outside. It is possible to prevent the ozone odor from drifting outside.

  Further, as the water stored in the overflow trap 45, water stored in the lower part of the outer tub 7 from the dehumidified water supply port 36 through the air passage member 31 is used. That is, since it is not necessary to supply water from the water supply hose 17 (see FIG. 2) connected to the upper part of the outer tub 7, even if the laundry previously stored in the drum 10 is stored before the ozone cleaning process, Water can be stored in the overflow trap 45 without getting wet.

  Further, after a predetermined amount of water stored in the overflow trap 45 is stored in the outer tub 7, the drain valve 18 is opened, and the water is discharged to the drain hose 20 at a stretch. And the overflow pipe 37 flow out not only on the downstream side (external side) of the drainage hose 20 but also on the upstream side (overflow trap 45 side) of the overflow pipe 37. As a result, water can be reliably retained in the V-shaped portion 95 of the overflow trap 45 using the water flowing out to the overflow pipe 37 side. Moreover, in such a structure, since it is not necessary to provide the V-shaped overflow trap 45 on the drain hose 20 side, the drainage treatment can be performed efficiently.

Further, whether or not to open the drain valve 18 as described above is executed, for example, when the water level sensor 47 determines that L2−L1 ≧ X (Yes in step S117 in FIG. 13B). ) By setting a value corresponding to the amount of water to be stored in the overflow trap 45 in the water level sensor 47 in advance, water can be reliably stored in the drain trap.
When the water level sensor 47 does not determine that L2−L1 ≧ X, the drain valve 18 is not “opened” and a water supply abnormality notification is made (step S119 in FIG. 13B). Therefore, for example, in the situation where water cannot be accumulated in the overflow trap 45 due to a failure of the dehumidifying water valve 14 or the like, and the outer tank 7 communicates with the outside through the drainage hose 20 or the like, It is possible to prevent ozone from leaking to the outside by performing the cleaning process.

  Further, the amount of water necessary for accumulating in the overflow trap 45 may be small, and in order to accurately measure such amount of water with the water level sensor, a highly accurate water level sensor is required. That is, a water level sensor that can accurately measure even a very small amount of water is required. However, when water is stored in the overflow trap 45, the amount of water is not particularly limited as long as it is greater than the above small amount of water (because water exceeding the allowable amount of the overflow trap 45 is drained to the outside from the drain hose 20). It is sufficient if it is possible to determine that the amount of water stored in the water is greater than or equal to a predetermined amount. Therefore, as described above, it is determined whether or not the difference in water level between the two points is equal to or greater than a predetermined threshold (for example, about the amount of water required to accumulate in the overflow trap 45), that is, L2−L1 ≧ X. It is possible to determine whether or not a small amount of water is accumulated in the outer tub 7 even if the reset water level is lower than the reset water level without using a high-precision water level sensor. Can store water. Moreover, since a highly accurate water level sensor is not required, the cost is not increased.

  Further, as shown in FIG. 13C, not only the overflow trap 45 but also water supply trap water supply control is executed, so that water is also stored in the water supply trap 24 before the start of the ozone cleaning process. Therefore, a part of the path communicating with the outer tub 7 → the water supply hose 17 → the detergent container 8 → the outside is sealed with the water stored in the water supply trap 24, so that even if the ozone cleaning process is started thereafter. , Ozone can be prevented from leaking outside of the drum-type washing machine 1 through a path communicating with the outer tub 7 → water supply hose 17 → detergent housing 8 → outside, and ozone odor can be prevented from drifting outside. can do.

Further, when water is accumulated in the water supply trap 24, as shown in FIG. 13C, the finishing agent valve 56 is "open" for a very short time, for example, 0.1 seconds, thereby finishing the finishing agent. Control is performed so that only a small amount of water is supplied to the water passage 522, and this operation is repeated a plurality of times (for example, eight times). Therefore, the water supplied by one operation flows through a position lower than the height of the upper water outlet 535B of the finishing agent water passage 522, flows out from the lower water outlet 535A, and does not pass through the finishing agent accommodating portion 87. Then, water is supplied to the water supply trap 24 through the inside of the detergent container housing chamber 81. That is, water is supplied to the water supply trap 24 through a bypass water supply passage that does not pass through the finishing agent storage portion 87. Moreover, since this operation is repeated a plurality of times (for example, 8 times), water can be reliably stored in the water supply trap 24. Further, since water is supplied through the bypass water supply channel, tap water not containing the finishing agent can be stored in the water supply trap 24, and the finishing agent component can be prevented from staying in the water supply trap 24.
<Modification>
The present invention is not limited to the contents of the above embodiments, and various modifications can be made within the scope of the claims.

  For example, although the overflow trap 37 is provided on the upstream side of the overflow pipe 37 from the joining position of the drainage hose 20 and the overflow pipe 37, the overflow trap 37 may be provided on the downstream side of the drainage hose 20 from the joining position. You may provide in both downstream. Even in such a configuration, since it is necessary to confirm whether or not water is reliably accumulated in the overflow trap, it is based on the detected water level of the water level sensor 47 as in the above embodiment. It is necessary to perform water supply control (see FIGS. 13A and 13B).

  Further, the water supply to the overflow trap 45 was performed by opening the dehumidifying water valve 14 and supplying dehumidified water so as not to wet the laundry. For example, the laundry is stored in the outer tub 7. If it is not stored, the problem that the laundry gets wet does not occur, so that the detergent valve 55 may be opened to supply water from the upper part of the outer tub 7 through the water supply hose 17.

  Further, in the above water supply trap water supply control, water is retained in the water supply trap 24 by opening the finish agent valve 56 a plurality of times (for example, 8 times), but the air wash course is selected by the user. Since the detergent and the finishing agent are not accommodated in the detergent accommodating portion 8, the detergent valve 55 may be opened to cause water to stay in the water supply trap 24, or may be performed by opening both valves.

Moreover, it is not restricted to the ozone generator 42, You may generate | occur | produce the gas which carries out the sterilization or disinfection which wash | cleans, deodorizes, and disinfects laundry, and the gas which gives a fragrance to laundry.
Further, the drum 10 is not limited to the configuration in which the axis extends in the left-right direction, and may be configured to extend in the front-rear direction, for example. In this case, the axis of the drum is not limited to a configuration extending substantially in the horizontal direction, and may be inclined within a predetermined angle range (for example, up to about 30 °) with respect to the horizontal direction. Alternatively, the drum axis may extend vertically.

Moreover, although the drum type washing machine 1 has a so-called top open type configuration in which the upper lid 2A is provided on the upper wall of the housing 2, it may have a so-called front open type configuration provided on the front wall.
Furthermore, as an example of the drum type washing machine, the drum type washing machine 1 having a drying function has been described as an example. However, the present invention is not limited to a drum type washing machine having no drying function, or a spiral type washing machine using a pulsator. It can also be applied to washing machines.

1 is a perspective view of a drum type washing machine 1 according to an embodiment of the present invention. It is the perspective view which extracted the principal part in the drum type washing machine 1 and was seen from the rear upper side and the right side. It is a top view of the principal part in the drum type washing machine 1 shown in FIG. It is the longitudinal cross-sectional view of the drum-type washing machine 1, Comprising: It is the figure which looked at the cross section when it cut | disconnects by the vertical surface along the left-right direction from the front. FIG. 2 is a longitudinal sectional view of the drum-type washing machine 1, and shows a state in which an outer lid 2 </ b> A closes an opening 4 in a cross-sectional view taken along a vertical plane along the front-rear direction when viewed from the right side. FIG. 5A shows a state in which the outer lid 2 </ b> A opens the opening 4. It is right side sectional drawing in the state where detergent container 80 was equipped in detergent container storage room 81. 4 is an external perspective view of members constituting the water injection unit 82. FIG. It is sectional drawing cut | disconnected by the surface along AA in FIG. It is the perspective view which looked at the outer tank 7, the drying unit 3, and the peripheral components from the rear upper side and the right side. FIG. 10 is a right side view of the outer tub 7, the drying unit 3, and peripheral components shown in FIG. It is a block diagram which shows the electric constitution of this drum type washing machine 1, Comprising: It is the figure which showed the part relevant to this invention. It is a flowchart which shows the flow of control by the control part 40 when the predetermined washing operation by this drum type washing machine 1 is started. It is a flowchart which shows the first half part of the water supply control in a trap water supply process. It is a flowchart which shows the latter half part of the water supply control in a trap water supply process. It is a flowchart which shows the water supply control to the water supply trap 24 in a trap water supply process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum type washing machine 3 Drying unit 7 Outer tank 8 Detergent storage part 10 Drum 14 Dehumidification water valve 17 Water supply hose 18 Drain valve 20 Drain hose 24 Water supply trap 31 Airway member 33 Induction hood 36 Dehumidification water supply port 37 Overflow pipe 40 Control Section 42 Ozone generator 43 Inlet pipe 45 Overflow trap 47 Water level sensor 55 Detergent valve 56 Finishing agent valve 80 Detergent container 81 Detergent container storage chamber 522 Finishing agent tap water passage 535A Lower outlet

Claims (9)

A treatment tank for storing laundry, storing water, washing, dehydrating, etc .;
Water supply means for supplying water to the treatment tank;
A drainage channel for draining the water stored in the treatment tank to the outside;
When overflowing the predetermined amount of water that has joined the drainage channel and stored in the treatment tank, an overflow channel for draining the predetermined amount or more of water,
A drain trap provided as a part of at least one of the drainage channel or the overflow channel, and a water trap for retaining water;
A gas supply means for generating a gas for purifying the laundry and supplying the gas to the treatment tank;
Water supply control means for storing water in the drain trap by controlling the water supply means before supplying the gas to the treatment tank ;
A drainage valve provided on the upstream side of the merging position of the overflow channel, and a drainage valve for opening and closing the channel of the drainage channel;
The water supply control means closes the drain valve, controls the water supply means or the dehumidified water supply means, stores a predetermined amount of water in the treatment tank, and then opens the drain valve to open the drainage valve. The trap is used to collect water, and
A water level sensor for detecting the water level in the treatment tank;
The water supply control means stores water in the drain trap by opening the drain valve when the water level sensor detects a predetermined set water level,
The water supply control means detects a first set water level detected by the water level sensor after a predetermined first time of water supply from the start of water supply to the treatment tank, and after a predetermined second time of water supply after the first time has elapsed. When the water level difference from the second set water level is greater than or equal to a predetermined threshold value, water is stored in the drain trap by opening the drain valve . One end is connected to the lower part of the treatment tank, the other end is connected to another part of the treatment tank, and the air in the treatment tank flows out from one end, circulates, and flows in from the other end A circulation airway,
Dehumidified water supply means connected to the circulation air passage and controlled by the water supply control means to supply dehumidification water for removing moisture in the air passing through the circulation air passage into the circulation air passage;
2. The washing machine according to claim 1, wherein the water supply control unit controls the dehumidified water supply unit to accumulate water in the drain trap from the circulation air passage through the lower part of the treatment tank. The water supply control means, when the water level sensor does not detect the set water level, and executes the water supply error process, the washing machine according to claim 1. A treatment tank for storing laundry, storing water, washing, dehydrating, etc .;
Water supply means for supplying water to the treatment tank;
A drainage channel for draining the water stored in the treatment tank to the outside;
When overflowing the predetermined amount of water that has joined the drainage channel and stored in the treatment tank, an overflow channel for draining the predetermined amount or more of water,
A drain trap provided as a part of at least one of the drainage channel or the overflow channel, and a water trap for retaining water;
A gas supply means for generating a gas for purifying the laundry and supplying the gas to the treatment tank;
Before supplying the gas to the treatment tank, the water supply control means for storing water in the drain trap by controlling the water supply means,
The water supply means has a water supply channel for guiding water to the treatment tank,
A detergent container for accommodating a detergent or finish that is provided in the middle of the water supply channel and is dissolved in the water to be supplied, and
Provided on the downstream side of the detergent container in the water supply channel, and a water supply trap for retaining water to be supplied,
The water supply control means stores water in the water supply trap before supplying the gas to the treatment tank,
The water supply channel has a bypass water supply channel for supplying water to the treatment tank without passing through the detergent container,
The washing machine according to claim 1, wherein the water supply control means stores water in the water supply trap through the bypass water supply channel. One end is connected to the lower part of the treatment tank, the other end is connected to another part of the treatment tank, and the air in the treatment tank flows out from one end, circulates, and flows in from the other end A circulation airway,
Dehumidified water supply means connected to the circulation air passage and controlled by the water supply control means to supply dehumidification water for removing moisture in the air passing through the circulation air passage into the circulation air passage;
The washing machine according to claim 4, wherein the water supply control means stores water in the drain trap from the circulation air passage through the lower part of the treatment tank by controlling the dehumidified water supply means. The drainage channel is provided on the upstream side of the merging position of the overflow channel, and includes a drainage valve for opening and closing the channel of the drainage channel,
The water supply control means closes the drain valve, controls the water supply means or the dehumidified water supply means, stores a predetermined amount of water in the treatment tank, and then opens the drain valve to open the drainage valve. The washing machine according to claim 4 or 5, wherein water is stored in the trap. A water level sensor for detecting the water level in the treatment tank;
The washing machine according to claim 6, wherein the water supply control means stores water in the drain trap by opening the drain valve when the water level sensor detects a preset set water level. 8. The washing machine according to claim 7, wherein the water supply control means executes a water supply error process when the water level sensor does not detect the set water level. The water supply control means detects a first set water level detected by the water level sensor after a predetermined first time of water supply from the start of water supply to the treatment tank, and after a predetermined second time of water supply after the first time has elapsed. The water trap is stored in the drain trap by opening the drain valve when a water level difference from the second set water level is a predetermined threshold value or more. Washing machine.

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