JP5651373B2 - Washing machine - Google Patents

Description

The present invention relates to a vertical washing machine having a function of sterilizing and deodorizing laundry using ozone or the like, and more specifically, decomposes and discharges excess ozone or the like present in a washing tub. The present invention relates to a washing machine having a structure.

2. Description of the Related Art Conventionally, a washing machine having a function of sterilizing and deodorizing laundry using ozone or the like and sterilizing and reusing bath water is known. It is preferable that the gas such as ozone used for sterilization and deodorization used here does not leak out of the washing tub. For example, ozone
When filled in the air, an unpleasant odor is produced, and when the concentration is high, the human body may be adversely affected.

Therefore, for example, Patent Document 1 below discloses an invention of an electric washing machine that can prevent a gas such as ozone for performing a specific treatment such as purification on the laundry from leaking out of the machine. .

In the electric washing machine shown in the following Patent Document 1, it is provided so as to cover the periphery of the opening of the laundry storage tub, and when the door is closed, the door and the periphery of the opening are in close contact with the door. Since the packing for closing the gap | interval between is provided, the airtightness inside the laundry storage tub in an opening part can be ensured by closing a door. Further, in this electric washing machine, the door is provided with a guide wall extending toward the gap between the packing and the lower end of the cover member at the entrance and exit. The door is closed even when the laundry protrudes because a shutter is provided to cover the gap between the cover and the lower end of the doorway of the cover member and expose the gap when the door is closed. Even in this case, it is said that gas can be prevented from leaking out of the machine.

JP 2008-178603 A

In general, the washing machine includes a so-called drum type in which a washing tub is provided in a horizontal direction and a so-called vertical type in which a washing tub is provided in a vertical direction.
The sterilization and deodorization functions using ozone and the like described above have been provided in both types, and among them, the advantage of the vertical washing machine being low cost and space saving,
More demand is expected.

However, unlike a drum-type washing machine, a vertical washing machine has a narrow interior and a limited space for use. Therefore, a liquid flow path containing ozone or the like is not equipped with a circulation pump. A round-pass water channel, a so-called one-pass channel, is generally employed. In the case of a one-pass type flow path, it is necessary to energize the electrodes to generate ozone etc. at all times when supplying water into the washing tub in order to ensure the necessary sterilization performance and the concentration of water in which ozone is dissolved. And In general, the vertical washing machine uses a larger amount of water than the drum type with the washing tub lying on the shape of the washing tub, so the energization time to the electrode to generate ozone etc. is It becomes longer, and excessive ozone or the like that cannot be completely dissolved in the liquid or not used in the sterilization reaction is generated. And in the vertical type washing machine, excess ozone etc. fills up in the washing tub, and by raising the water level by water supply, leakage occurs from the place where structurally airtightness is low, and ozone odor is generated in the indoor environment. There is a problem of being full.

Moreover, in order to solve the above-mentioned problem, even if an attempt is made to incorporate the configuration of the electric washing machine shown in Patent Document 1 into a vertical washing machine, the vertical washing machine has a door configured upward, Furthermore, since the doors are different in thickness, it is difficult to adopt them as they are, and since the doors are not sideways, it is also difficult to control the airflow in front of the doors so that no gas leaks out. Therefore, a configuration that suppresses leakage of ozone or the like is required even in a vertical washing machine.

In view of this, the inventors have repeated various experiments, and as a result, in a vertical washing machine, in order to suppress leakage of excess ozone, etc., a wind for letting excess ozone, etc. escape from the inside of the washing tub to the inside of the washing machine. It has been found that by providing a passage and having a catalyst capable of decomposing ozone or the like in the air passage, the concentration of discharged ozone or the like can be reduced, and the present invention has been completed.

That is, an object of the present invention is to provide a vertical washing machine that can suppress bad odors and adverse effects on the human body due to leakage of ozone and the like from the inside of the washing tub.

First washing machine according to the present invention,
A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate covering the upper side of the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole.

A second washing machine according to the present invention,
A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole,
The case is characterized in that the case is provided in a portion where the gap between the housing and the outer wall of the outer tub is farthest away.

Third washing machine according to the present invention,
A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole,
The case is characterized in that when the length of the case is L and the height of the outer tub is X, the case has a length in the range of X / 3 ≦ L ≦ X / 2.

Fourth washing machine according to the present invention,
A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole,
A vent hole provided in the casing, the so as to surround the vent hole, and wherein the ribs are al provided in the air path inside.

It is preferable that a part of the rib corresponding to the downstream side of the air passage is opened.

The fifth washing machine according to the present invention is:
A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole,
The bottom of the case, characterized in that the liquid absorbent is al provided.

In the case, it is preferable that a gap is formed between at least one inner surface of the case and the catalyst.

A sixth washing machine according to the present invention is:
A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole,
The catalyst is fixed to the case via an elastic body .

In the case, a gap is formed between at least one surface of the inner surface of the case and the catalyst,
It is preferable that the elastic body is not provided on the catalyst on the gap side .

The air passage is preferably formed by an outer wall of the outer tub and the case .

It is preferable that a space is provided in the cover plate at a position communicating with the groove, and the catalyst is disposed between the space and the vent hole .

It is preferable that the catalyst is any one of activated carbon, metal oxide, alumina, silica gel, or zeolite .

The catalyst is preferably formed in a lattice shape or a honeycomb shape in plan view .

In the first washing machine according to the present invention , the air containing ozone in the washing tub comes to flow out of the groove formed in the cover plate when pushed upward by the rise of the water level of the washing tub. The air containing ozone that has flowed out flows into the air passage in the case. And the air containing ozone will be decomposed | disassembled by the catalyst with which ozone was equipped in the air path. Therefore, according to the washing machine of the present invention, it is possible to suppress leakage of air containing ozone, and to prevent the user from feeling uncomfortable due to the ozone odor.

Moreover, since the case is formed along the vertical direction of the outer tub, the air containing ozone flows through the air passage formed along the vertical direction of the outer tub. In particular, since ozone is heavier than air, it can flow by its own weight, and ozone can be decomposed by a catalyst.

Furthermore, since the case is directly attached to the outer wall of the outer tub, it is possible to suppress dew condensation such as water vapor generated by heat transmitted from the outer tub or water vapor from the inside of the washing tub, and failure of the washing machine due to dew condensation can be suppressed. It becomes like this.

A plurality of cases may be mounted on the outer wall of the outer tub, and can be set as appropriate in consideration of the size of the washing machine, the decomposition efficiency of ozone, and the like.

Further, in a vertical washing machine, in a portion where the gap between the casing and the outer tub is separated, even if vibration occurs in the outer tub during the rotation of the inner tub, the outer tub is difficult to contact the casing. In the second washing machine according to the present invention , since the case is provided in a portion where the gap between the casing and the outer tub is separated, the case and the casing are separated even if the cross-sectional area of the hollow air passage is increased. Becomes difficult to touch. Therefore, according to the washing machine of the present invention, the cross sectional area of the hollow air passage of the case can be increased, and the air passage length can be increased, so that the cross sectional area and the length of the catalyst are increased. And the ozone decomposition efficiency can be improved. Since the casing of the vertical washing machine is generally rectangular, in this case, it is desirable to form the case at a position corresponding to the corner of the casing.

According to the third washing machine of the present invention, the case for exhausting ozone is formed to have a length in the range of 1/3 to 1/2 of the height of the outer tub. By doing in this way, the length of a case can fully be taken and decomposition | disassembly of ozone can be performed efficiently. If the length of the case is longer than ½ of the height of the outer tub, the case supports other parts, particularly the washing tub, when the outer tub vibrates during rotation of the inner tub during the washing process. The suspension mechanism is likely to collide and the suspension mechanism is likely to be damaged. On the other hand, if the length of the case is shorter than 1/3 of the height of the outer tank, it is difficult to make the length of the catalyst long enough for ozone decomposition.

Said air passage, lever being formed by an outer wall and the casing of the outer tub, a portion of the air passage is formed in the outer wall of the outer tub, it is possible to utilize the heat of the outer tub efficiently, The occurrence of condensation can be further suppressed. Furthermore, since it is not necessary to form one surface of the case, the manufacturing cost can be reduced and the design range can be expanded. In addition, you may provide the member for preventing a catalyst and the outer wall of an outer tank from contacting directly in the part with which a catalyst is provided.

According to the fourth washing machine of the present invention, the dew condensation generated in the air passage flows to the downstream side of the air passage along the rib, so that the dew condensation is prevented from flowing out of the case from the vent hole. Can do.

It said ribs, said vent the air path downstream are open some of the positions corresponding to the lever of the rib at a position corresponding to the downstream side of the air passage is not subjected to the suppression of condensation leakage need to form Therefore, the material cost can be saved and the range of design can be expanded. In addition, as a planar view shape of a rib, it is good to make it become a reverse U-shape.

According to the fifth washing machine of the present invention, the condensation generated in the air passage can be absorbed by the liquid absorbent material (for example, sponge, porous superabsorbent, etc.) provided at the bottom of the case. , Condensation leakage can be further suppressed. In addition, since the water | moisture content is vaporized by the heat transmitted from an outer tank and external air, the liquid absorbent material which absorbed condensation can absorb dew permanently.

Wherein the cover plate space is provided in a position that communicates with the groove, said catalyst lever is disposed between the vent hole and the space, the space provided on the top of the case, the cover plate Since the flow of air containing ozone flowing into the case from the groove can be stabilized and the air containing ozone can be efficiently brought into contact with the catalyst, the ozone decomposition efficiency can be improved. Further, the space provided in the upper part of the case prevents the catalyst from blocking the groove, so that air containing ozone from the inside of the washing machine can be surely passed through the catalyst.

Wherein said catalyst is activated carbon, metal oxides, alumina, silica gel and any one Tsudea lever zeolite can be appropriately selected depending on the use degradable catalyze these ozone situations.

Wherein said catalyst is a plan view, lattice or honeycomb shape is formed lever, it is possible to increase the contact area between the ozone can be decomposed more efficiently ozone. Moreover, since clogging due to dust is reduced, ozone can be stably decomposed over a long period of time.

According to the sixth washing machine of the present invention, since the catalyst is fixed through the elastic body (cushion), the impact transmitted to the catalyst is absorbed, and the catalyst is prevented from being damaged. It is possible to suppress separation from the case.

The said case, lever are gaps formed between at least one surface with the catalyst of the inner surface of the case, the gap between the inner surface of the catalyst and the case (bypass passage) is formed, for example Even if dust is trapped in the catalyst, it is possible to prevent the air path from being completely blocked, and at least a part of ozone can be continuously decomposed.

The said case, the gap between the at least one surface of the case of the inner surface and the catalyst is formed, wherein the said catalyst clearance side, lever cry have the elastic body is provided, the gap (the bypass passage) Since ozone flowing to the side can also be brought into contact with the catalyst, ozone decomposition efficiency can be further improved.

It is a perspective view which shows the state which opened the cover of the washing machine which concerns on a present Example. It is a vertical side view explaining the outline of the internal structure of the washing machine which concerns on a present Example. It is a figure which shows the structure centering on the water channel and wind path of a washing machine for demonstrating the function of the ventilation supply unit which concerns on a present Example. It is a figure explaining the internal structure of the washing machine incorporating the ventilation water supply unit which concerns on a present Example. It is a perspective view which shows the case with which the outer tank which concerns on a present Example was mounted | worn. It is a perspective view which shows the state which removed the case from the outer tank. It is a top view which shows the case of a present Example. FIG. 8A is a plan view showing a state where nothing is attached to the inner surface side of the case, and FIG. 8B is a plan view showing a fixing plate. It is the figure which looked at the case from the top. It is a cross-sectional perspective view in the XX line of FIG. It is sectional drawing seen from the other direction corresponding to FIG.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the embodiments and the drawings. However, in the following embodiment, a vertical washing machine will be described as an example in order to embody the technical idea of the present invention, and the vertical washing machine described in this embodiment will be described. The present invention is equally applicable to other embodiments within the scope of the claims. The “sterilization” in the present invention means that the number of bacteria after sterilization is 1/100 or less in the antibacterial / sterilization performance evaluation method of the Japan Electrical Manufacturers' Association. Means that.

As a washing machine according to an embodiment shown below, a vertical washing machine 1 capable of performing a series of washing steps of washing, rinsing, dehydrating and drying will be described as an example, and the detailed configuration will be described with reference to each drawing. To do.

1 and 2, a washing machine 1 is a vertical type in which a washing tub 3 includes a vertical rotating drum 5 having an upper surface opening in a housing 2. The casing 2 is provided with a washing water tank 3 arranged in a vertical shape. The washing water tank 3 is rotatable in the outer tank 4 and an outer tank 4 having a non-rotating upper surface for storing water during washing. A contained inner tank 5 (hereinafter also referred to as drum 5) is included. Drum 5
On the inner bottom surface, a stirring blade 14 (also referred to as a pulsator 14) for stirring water and clothes in the drum 5 is used.
Is arranged. The upper surface opening of the drum 5 is formed by a balance ring 52 composed of an upper ring 52A and a lower ring 52B. The drum 5 is provided with a large number of water passage holes 5A through which the water stored in the outer tub 4 circulates on the peripheral side surface thereof, and the outer tub 4 does not rotate. Is rotated about a vertical axis by a vertical rotation shaft 7 that is rotated by a motor 6 provided below the motor. In this case, in each washing process of the washing process, the rinsing process, the dehydration process, and the drying process, the stirring blade 14 and the drum 5 rotate at the same time, the stirring blade 14 or only the drum 5 rotates, the stirring blade 14 and the drum 5 The clutch mechanism 40 is provided to control the state in which the rotational direction of 5 is switched between forward and reverse.

An operation / display unit 2 </ b> P is disposed on the front surface of the housing 2. In the operation / display unit 2P,
A plurality of operation keys and indicators are arranged, and the operation of the washing machine 1 can be controlled by operating the operation keys, and the operation status of the washing machine 1 is displayed on the display unit.

The entrance / exit 9 of the upper surface opening of the outer tub 4 is a cover plate 1 attached to the peripheral portion of the entrance / exit 9 in an airtight state.
1 and an inner lid 12 attached to the cover plate 11 so as to be openable and closable. For this reason, the entrance / exit 8 of the upper surface opening of the drum 5 is also opened and closed by the cover plate 11 and the inner lid 12. The cover plate 11 has a groove 11a (FIG. 10) in which a part of the cover plate 11 is cut.
As shown in FIG. 5, a protruding portion 11b of the cover plate 11 is formed in the groove portion 11a. The groove portion 11a serves as a portion communicating with the air passage 62 formed in the case 61, and the overhang portion 11b serves as a portion where the case 61 and the cover plate 11 are attached.

A case 61 is attached to the outer wall 4 a of the outer tub 4. The case 61 attached to the outer wall 4a of the outer tub 4 is fixed to the outer wall 4a of the outer tub 4 by screwing along the vertical direction. The detailed configuration of the case 61 will be described later.

The inner lid 12 has an outer region made of an opaque material and an inner region made of a transparent plate 12A so that the inside of the drum 5 can be seen through even in a closed state. The upper surface opening 13 of the housing 2 is opened and closed by an outer lid 10 that is attached to the upper surface of the housing 2 so as to be opened and closed. Cover plate 1
The contact portion between the inner lid 12 and the inner lid 12 is hermetically sealed with a packing attached to the peripheral edge of the inner lid 12, whereby the inner tub 12 is closed and the outer tub 4 is hermetically sealed. . The state where the outer lid 10 is opened and the inner lid 12 is opened is shown in FIG. 1. In this state, the drum 5 passes through the entrances 8 and 9 of the upper surface opening of the outer tub 4 and enters the drum 5. The clothes (laundry) are taken in and out. Further, as shown in FIG. 4, the washing tub 3 is supported by being suspended from the housing 2 at a plurality of locations so as to be supported substantially evenly by the suspension mechanism SP that absorbs vibration (in the embodiment, the outer tub 4 is supported at four locations). )

At a position above the inlet / outlet 9 of the upper surface opening of the outer tub 4 and the inlet / outlet 8 of the upper surface opening of the drum 5, a blower unit 16, a water supply unit 17, and an ozone generator 18 are provided at the upper rear part in the housing 2. The blast water supply unit 15 including it is accommodated.

Here, before explaining the blast water supply unit 15, each washing | cleaning process relevant to this is demonstrated easily using FIG.2 and FIG.3. The washing process includes a washing process for washing laundry with detergent, a rinsing process for removing detergent attached to the laundry used in the washing process, a dehydration process for removing moisture from the laundry, and a wet laundry It consists of a drying process for drying and sanitizing and deodorizing clothes and the like. In addition, it is not necessary to perform all these processes continuously, and it can select arbitrarily by a user.

In the washing process, a water supply valve 23 (described later) connected to the tap water pipe is opened, and tap water supplied from the tap water pipe is stored in the outer tub 4 of the washing tub 3. At that time, since the water passes through the detergent container 25 described later and reaches the washing tub 3, the water in which the detergent is dissolved can be stored in the inner tub 5 and the outer tub 4 of the washing tub 3. . Thereafter, the stirring blade 14 is driven by the motor 6.
The laundry in the drum 5 is washed by rotating. At this time, the drum 5 is not rotated. Then, after the drain valve 33 is opened and the water in the washing tub 3 is drained from the drain pipe 34, a rinsing step is performed. In the rinsing step, the water supply valve 23 is opened again to store tap water in the outer tub 4 of the washing tub 3, and the stirring blade 14 is rotated by the motor 6, and the laundry is rinsed by this water. At this time, the drum 5 is not rotated.

Thereafter, the drain valve 33 is opened and the rinse water in the washing tub 3 is drained from the drain pipe 34,
A dehydration process is performed in which the drum 5 and the stirring blade 14 are simultaneously rotated by the motor 6 to dehydrate the laundry. This rinsing process and dehydration process are repeated a plurality of times, and the washing, rinsing, and dehydration processes are completed. In this washing process, an intermediate dehydration process may be provided between the washing process and the rinsing process for dehydrating water containing detergent attached to the laundry. In addition, after the washing, rinsing, and dehydration processes are completed, a drying process is performed as necessary. In this drying process, an ozone generator 1 described later.
8 can be operated to dry the laundry and to disinfect and deodorize it.

Hereinafter, each structure of the ventilation water supply unit 15 is demonstrated with reference to FIG. The water supply unit 17 includes a water supply valve 23 for controlling supply of water supplied to a downstream water passage through a faucet (not shown) that manually opens and closes a pipe connected to the tap water pipe, and a water inlet unit. 24, the bath water pump 26, and the piping which concerns on these. The water supply valve 23 has three outlets 23A, 23B, and 23C, and the outlet from which water is discharged can be switched. The first outlet 23 </ b> A and the second outlet 23 </ b> B of the water supply valve 23 are connected to the water inlet unit 24. In the water inlet unit 24, tap water supplied from the first outlet 23A is supplied to the detergent container 2
5 includes a branch water channel that is divided into a water channel that leads to the detergent storage chamber partitioned into 5 and a water channel that leads to the priming water channel 35. Further, the tap water supplied from the second outlet 23 </ b> B of the water supply valve 23 passes through the softener storage chamber (softener container) partitioned in the detergent container 25 and supplies water from the water supply path 29 to the washing tub 3. Furthermore, a water supply path 28 </ b> A led from the bath water pump 26 is connected to the water inlet unit 24 via a venturi pipe 30. In addition, the third outlet 23 </ b> C of the water supply valve 23 is supplied with water from the water supply path 32 to the washing tub 3 through the venturi pipe 37.

The blower unit 16 includes an electric motor 19A and a rotary blade 1 that are rotationally driven in the drying process.
9B is provided with a blower 19 as a purifying air extinguishing means and a blowing means, and a heater 21 for heating the air circulated into the washing tub 3 by the blower 19, and a drying air passage 22 (circulation air passage) in the drying process. ) In the air. The rotary blade 19B and the heater 21 are accommodated in an air passage in the synthetic resin case 16P, and the rotary blade 19B is rotated by an electric motor 19A attached to the upper surface of the synthetic resin case 16P.

The drying air passage 22 is arranged outside the outer tub 4, and sucks hot and humid air in the washing tub 3 from an upper portion of the outer tub 4 from a connection pipe 41 serving as an air suction port, and heats the air by the heater 21. Then, the air passage is used to circulate the air so that the air flows into the washing water tank 3 from the connection pipe 42 serving as an air discharge port in the upper part of the outer tub 4.

Next, with reference to FIG. 3, the whole structure centering on the water channel containing the ventilation water supply unit 15 of the washing machine 1, and an air channel is demonstrated.

First, the structure of the ventilation water supply unit 15 provided in the washing machine 1 and a water channel is demonstrated. When the bath water pump 26 is operated in the state where the tap of the tap water pipe is opened, the first outlet 23A of the water supply valve 23 is opened, mainly passing through the priming water channel 35 and the check valve 35A, and bath water. While the priming water flows into the pump 26, the remaining hot water (bath water) in the bathtub becomes the bath water hose 27.
The water inlet unit 2 is pumped from the water supply path 28 via the bath water pump 26.
4, passes through the detergent storage chamber of the detergent container 25, exits from the outlet 25 </ b> A of the detergent container 25, and flows into the washing tub 3 from the water supply channel 29.

At this time, a venturi pipe 30 is interposed in the water supply path 28 as an ozone mixing part for supplying ozone to the bath water in the bath water supply path 26R, and this venturi pipe 30 (both gas-liquid mixer or ejector) The ozone generated by the ozone generator 18 is mixed into the bath water flowing through the water supply channel 28. The inflow principle is that ozone generated from the ozone generator 18 passes through a check valve 31A provided at the ozone outlet and passes through the air tube 31 due to a pressure difference (negative pressure) caused by water flowing in the venturi tube 30. Air containing ozone (purification air) is sucked and mixed into the bath water flowing through the venturi tube 30 from the connected air inlet 30A.

When the bath water pump 26 is not operated, the water supplied to the water inlet unit 24 by opening the first outlet 23A of the water supply valve 23 passes through the detergent storage chamber of the detergent container 25, and the detergent container 2
5 exits from the outlet 25 </ b> A and flows into the washing tub 3 from the water supply channel 29. Second of water supply valve 23
The outlet 23B is also connected to the water inlet unit 24, but when the second outlet 23B is opened, the water supplied from the second outlet 23B passes through the softener container (softener container) partitioned in the detergent container 25. It passes through the water supply channel 29 and flows into the washing tub 3. In this way, water supplied from the water supply valve 23 is supplied to the washing tub 3 through the water supply passage 29.

Further, as described above, the water supplied from the third outlet 23C of the water supply valve 23 is supplied from the water supply path 32 to the washing tub 3 through the venturi pipe 37, and is connected from the washing tub 3 to the connection pipe for the air suction port. In order to dehumidify the hot and humid air sucked into the blower unit 16 through 41 and to reduce the temperature of the air, dehumidifying water is supplied to exchange heat with the hot and humid air. For this reason, the third outlet 23 </ b> C of the water supply valve 23 is configured to supply a relatively small amount of dehumidifying water supplied from the outlet 32 </ b> A via the water supply path 32 into the connection pipe 41.

A venturi pipe 37 is interposed in the middle of the water supply channel 32, and the outlet of the ozone generator 18 passes through the air tube 38, passes through the check valve 38 </ b> A, and the air inlet 37 of the venturi pipe 37.
Connected to A. Therefore, air containing ozone (purification air) through the air tube 38 in the Venturi tube 37 according to the inflow principle similar to the Venturi tube 30 described above.
Is sucked and ozone generated in the ozone generator 18 is mixed into the water flowing through the water supply channel 32.

Since the water channel is configured in this manner, as described above, in the washing process and the rinsing process, the drainage valve 33 is closed and the washing water tank 3 (specifically, the outer tub 4 is supplied by the above water supply.
A certain amount of water is stored in the inner tank 5). In the washing process, after the drum 5 is not rotated by the motor 6 and the clothes in the drum 5 are washed by the forward and reverse rotation of the stirring blade 14, the drain valve 33 is opened and the water in the washing tub 3 is drained from the drain pipe 34. The drum 6 and the stirring blade 14 are driven by the motor 6.
Rotate at the same time to dehydrate clothing. After this dehydration, a rinsing operation is performed. Rinse operation
The drain valve 33 is closed again, and a certain amount of water is stored in the washing tub 3 by water supply similar to the above,
The drum 5 is not rotated by the motor 6, and the stirring blade 14 rotates forward and backward. After the clothes are rinsed with this water, the drain valve 33 is opened and the rinse water in the washing tub 3 is drained from the drain pipe 34. Thereafter, the drum 5 and the stirring blade 14 are simultaneously rotated by the motor 6 to dehydrate the clothes. When the water level supplied to the washing tub 3 is higher than a predetermined water level, the water is discharged from the overflow port 36A through the overflow pipe 36 to the drain pipe 34.

  Next, the structure of the ventilation water supply unit 15 provided in the washing machine 1 and an air path is demonstrated.

The blower unit 16 includes a drying filter 20 on the air suction side of the blower 19. The drying filter 20 is for capturing foreign matter such as lint contained in the air circulated through the drying air passage 22 by the blower 19. The drying filter 20 is disposed on the air suction side of the rotary blade 19B, and is detachably attached to the synthetic resin case 16P, so that the filter element of the drying filter 20 can be easily cleaned. Yes. In the embodiment, the drying filter 20 is constituted by a filter case to which a filter element is attached, and the filter case is detachably attached to the synthetic resin case 16P. The heater 21 employs a known PTC (Positive Temperature Coefficient) heater for miniaturization, and is disposed on the air discharge side of the rotor blade 19B.

As described above, the drying air passage 22 includes the blower unit 16, the connection pipe 41 serving as an air suction port, and the connection pipe 42 serving as an air discharge port. As shown in FIGS. 2 and 3, the connection pipe 41 and the connection pipe 42 are attached through the cover plate 11 attached in an airtight manner to the periphery of the entrance / exit 9 of the upper surface opening of the outer tub 4, A connection pipe 41 is connected to the air suction side of 16 through a bellows pipe, for example, a flexible pipe,
The connection pipe 42 is connected to the air discharge side of the blower unit 16 via a bellows tube which is a flexible tube.
Is connected. Thus, by operating the blower unit 16, the air in the annular space K is sucked into the connection pipe 41 for the air suction port from above the annular space K, and from the upper opening of the upper surface of the drum 5 by the connection pipe 42 for the air discharge port. By discharging air into the drum 5, the air in the washing tub 3 is circulated by the drying air passage 22.

The washing machine 1 is provided with a drying air path 22 for performing a drying process. In the drying process, the blower 19 is operated and the heater 21 is heated. For this reason, the outer tub 4 and the drum 5
The air in the annular space K is sucked from the connection pipe 41 for sucking air communicated with the annular space K between the two and the air passing through the drying filter 20 passes through the rotary blade 19B and then the heater 21.
And is discharged from the connection pipe 42 for discharging air into the drum 5 to evaporate the moisture from the clothes in the drum 5, and the hot and humid air containing the evaporated moisture is again supplied from the annular space K to the connection pipe 41. The circulation which is sucked into the blower unit 16 through the air is performed.

In this drying step, as shown in FIG. 3, dehumidifying water is supplied from the water supply channel 32 in order to dehumidify the hot and humid air and promote the drying effect. This dehumidification water supply control is
By opening the third outlet 23C of the water supply valve 23 intermittently for a predetermined time, a relatively small amount of dehumidified water is supplied from the outlet 32A of the water supply path 32 to the annular space K over a predetermined number of times. The third outlet 23C is a relatively small-diameter outlet, and the outlet 32A of the water supply channel 32 faces the annular space K through the connection pipe 41 for the air suction port, and the dehumidified water is discharged several times in the drying process. It is a mechanism to be supplied. For this reason, the hot and humid air sucked out from the washing tub 3 exchanges heat with a small amount of dehumidified water supplied via the water supply channel 32 to dehumidify the circulating air and lower the temperature. Water droplets generated by dehumidification including dehumidified water supplied to the drying air path 22 via the water supply path 32 are drain pipes connected to the bottom bottom of the washing tub 3, that is, the bottom bottom drain of the outer tub 4. 34, and is drained to an external sewage channel or the like via a drainage valve 33 and a drain trap part 39 (described later) formed in the middle of the drain pipe 34.

Then, in the drying process, by operating the ozone generator 18, air containing ozone through the air tube 38 (in accordance with the inflow principle of the venturi tube 37 described above)
(Purification air) is sucked and ozone is mixed into the water flowing through the venturi tube 37. For this reason, in the drying process, since the water supplied from the water supply path 32 for dehumidifying the hot and humid air sucked out from the washing tub 3 is purified by ozone, the air blowing unit 16
Thus, the air circulated into the washing tub 3 becomes purified air, and the laundry can be deodorized and sterilized.

In the drying process, the motor 6 causes the drum 5 and the stirring blade 14 to move, for example, 1 per minute.
By simultaneously rotating at a low speed such as 0 rotation, drying of clothes and sterilization / deodorization can be promoted.

As described above, in the drying process, the blower 19 is operated, the air in the annular space K between the outer tub 4 and the drum 5 is sucked into the blower unit 16, and the air that has passed through the drying filter 20 is heated by the heater 21. When heated, the warm air (for example, warm air of 80 ° C. to 90 ° C.) is discharged into the drum 5 to evaporate the moisture from the clothes in the drum 5, and the hot and humid air containing the evaporated moisture is circular again. Circulation that is sucked from the space K into the blower unit 16 is performed. In this drying process, in order to make it easy for the moisture evaporated from the clothing to come into contact with the outer tub 4 and the wall of the drum 5, the air around the washing machine 1 is applied to the outer tub 4, and the temperature of the outer tub 4 is increased. The cooling fan 60 is operated to lower the temperature.

In addition, the ozone generator 18 is connected to the blower unit 16 via the air tube 43 in order to execute the sterilization mode in the drying process. For this reason, in the sterilization mode in which the ozone generator 18 is operated in the drying process, the purification air containing ozone generated by the ozone generator 18 is sucked into the blower unit 16 through the drying filter 20. Air containing ozone can be mixed into the air circulated to the washing tub 3. In this case, both ozone and air containing ozone are used as purification air. With this purifying air, it is possible to perform sterilization and deodorization (air wash) of clothes to be dried. In addition, regarding the name of this air wash, since the clothes are washed with the purification air (air), the bacteria are sterilized and deodorized, the applicant of the present application is responsible for the sterilization of the clothes performed using the purification air and Deodorization is called air wash. The blower unit 16, the air tube 43, and the ozone generator 18 function as purification air supply means for supplying purification air to the washing tub 3.

In the washing machine 1, the drain trap part 3 is connected to the drain pipe 34 for air washing.
9 is provided. The drain trap section 39 is configured to ensure the circulation of drainage, but to block the circulation of air through the drain pipe 34 when a part of the drainage is accumulated. For this reason, this drain trap part 39 can also block the reverse flow of odors from the sewage.

The entrance / exit 9 of the upper surface opening of the outer tub 4 is sealed with the inner lid 12, and the drain pipe 34 is connected to the drain trap part 3.
9, the air flow is cut off, and the air flow is cut off in the water supply passage 29 by a water supply trap (not shown).

Next, the structure and function of the case 61 attached to the washing machine of the present embodiment will be described with reference to FIGS.

As described above, in the washing process according to the washing machine 1 of the embodiment, the ozone generated from the ozone generator 18 gives sterilization and deodorizing action to the water and air supplied from the water supply unit 17 and the blower unit 16. Therefore, it is mixed and supplied in a large amount into the washing tub 3. And the excess ozone that could not be dissolved in the water or not used for the sterilization reaction is filled in the washing tub 3 and is pushed upward by supplying water and blowing air. In the washing machine 1 of the present embodiment, in order to prevent excess ozone from leaking out to the outside as it is, it has a hollow air passage inside that communicates with the groove portion 11a (see FIG. 10) provided in the cover plate 11. A case 61 is provided.

As shown in FIG. 5, the case 61 has a rectangular rear surface 61a, side surfaces 61b and 61c erected from both sides of the rear surface 61a, and a bottom 61d provided on the ground side of the case 61. An opening 61e (see FIG. 7) is provided on the upper side facing the bottom 61d, and the side in contact with the outer wall 4a of the outer tub 4 is an open vertically long box-like body. The back surface 61 of the case 61
A plurality of air holes 65 are formed in a. The inside of the case 61 has a back surface 61a,
Surrounded by both side surfaces 61b and 61c and the outer wall 4a of the outer tub 4, it becomes hollow, and this hollow portion becomes an air passage 62 into which surplus ozone flows. Further, by attaching the case 61 in close contact with the outer tub a, the gas passing through the air passage 62 by the heat transmitted from the outer tub 4 is difficult to condense.

Further, as shown in FIG. 8, inside the case 61, the catalyst mounting portion 6 to which the catalyst 66 is mounted is mounted.
3 and an absorbent material mounting portion 64 to which an absorbent material 67 that absorbs moisture due to condensation is mounted. Further, ribs 65 are provided around the plurality of air holes 65 formed on the back surface 61 a of the case 61.
a is formed.

The catalyst 66 is formed in a shape that can be mounted on the catalyst mounting portion 63. In the case of the present embodiment, as shown in FIGS. 9 and 10, the external appearance is a rectangular parallelepiped, and the inside (cross section) has a lattice shape that allows ventilation. By forming the catalyst 66 in a lattice shape, the ventilation resistance of the gas containing ozone passing through the air passage 62 can be reduced, the contact area can be increased, and decomposition can be performed efficiently. The shape of the catalyst 66 is not limited to a lattice shape, and may be a honeycomb shape. Further, the catalyst 66 can be formed of any one of activated carbon, metal oxide, alumina, silica gel and zeolite known as an ozone decomposition catalyst, and can be changed according to the sterilizing and deodorizing gas used. It is.

Further, the catalyst 66 is mounted with an elastic body 68 interposed. By doing in this way, the elastic body 68 becomes a cushion, and it is possible to suppress the breakage and dropout of the catalyst 66.
This elastic body can be formed of sponge, rubber or the like.

The vent hole 65 is for exhausting the gas in which ozone is decomposed. Therefore, it is sufficient that at least one is formed, but in order to facilitate exhaust, five vent holes are provided in this embodiment. The shape is not limited to a circle, but can be a square, rectangle, rhombus, ellipse, or the like, and the size can be arbitrarily changed.

Around the vent hole 65 on the air passage 62 side, a rib 65a is formed so as to protrude to the inside of the case 61. Even if condensation occurs due to the formation of the rib 65a,
Condensation can be prevented from leaking outward from the vent hole 65 by flowing along the rib 65a, and failure of the washing machine 1 due to condensation can be suppressed. If the rib 65a is formed in an inverted U shape surrounding the periphery of the vent hole 65 as shown in FIGS. 7 and 10, the dew that flows from above can be efficiently flowed to the downstream side.

The absorbent material 67 can be made of a material that can absorb dew condensation. That is, any material that can absorb moisture may be used, and examples thereof include sponge and cotton. At this time, the absorbed moisture can be evaporated by the heat transmitted from the outer tub 4 and the outside air, so that the absorbent 67 can be used repeatedly. It should be noted that the vapor hole 61 through which moisture evaporating from the absorbent 67 passes through the absorbent mounting portion 64 of the case 61 to which the absorbent 67 is mounted.
i can also be formed. A claw portion 61h for fixing the absorbent 67 can also be provided.

Assembling of the case 61 is performed so that the lattice-shaped eyes formed on the catalyst 66 can be confirmed from the upper side of the catalyst 66 in which the elastic body 68 is wound around the catalyst mounting portion 63 of the case 61, that is, ozone is from the top to the bottom. Install so that it can pass through. At this time, the fixing plate 69 is used to fix the case 61 and the catalyst 66 to the case 61. The fixing plate 69 is formed by locking a locking groove 61g provided in the case 61 and a locking claw 69c formed on the fixing plate 69. At this time, the catalyst 66 can be supported and fixed by the elastic piece 68a provided with the fixing plate 69. The catalyst 66 is fixed at a position where a space 62 a is formed in the upper part of the case 61. By forming this space 62a, the flow of ozone flowing out from the groove 11a of the cover plate 11 is stabilized, and the flow in the air passage 62 can be made smooth. Next, the absorbent material 67 is attached to the absorbent material attaching portion 64 of the bottom 61d of the case 61, and the assembly of the case 61 is completed.

Next, the case 61 is attached to the outer tub 4. The mounting of the case 61 with the outer tub 4 is performed by screwing the screw holes 4c formed in the outer wall 4a of the outer tub 4 and the screwing protrusions 61k respectively extending on both side surfaces 61b and 61c of the case 61 with screws. Is called. At this time, the case 61 and the outer tub 4 are fitted by fitting the vertical wall 4 b formed on the outer wall 4 a of the outer tub 4 and the vertical groove 61 j of the case 61.
It is possible to suppress the formation of a gap between the outer wall 4a and the ozone leakage.

Further, a gap 6 between the inside of the case 61 and the catalyst 66 is a bypass for the air passage 62.
9 a is formed on one side of the case 61. By forming this gap 69a,
It is possible to suppress the catalyst 66 from being clogged with dust. If the elastic body 68 is not provided on the catalyst 66 on the side where the gap 69a is formed, the ozone that has passed through the gap 69a can also come into contact with the catalyst 66, so that the decomposition of ozone is made more efficient. be able to. In the present embodiment, the gap 69 a is formed in the fixed plate 69. And
A hill portion 69b is formed between the gaps 69a of the fixed plate 69, and the catalyst 6 is formed by the hill portion 69b.
A part of 6 is supported and fixed. At this time, the hill portion 69 b is provided with an elastic piece 68 a, and the damage and dropping off of the catalyst 66 can be suppressed as in the case of the elastic body 68.

Thereafter, the cover plate 11 is attached to the outer tub 4. At this time, it attaches so that the groove part 11a formed in the cover board 11 and the air path 62 of the case 61 may connect. At this time, the cover plate 11 and the case 61 are fitted together by fitting the fitting groove 11 c formed in the overhanging portion 11 b of the cover plate 11 and the fitting protrusion 61 f of the case 61. By doing in this way, an airtightness increases and ozone leakage is suppressed, and attachment can be ensured.

Further, the mounting position of the case 61 may be mounted in a place where the gap between the outer tub 4 and the housing 2 is the widest. In this embodiment, the housing 2 has a rectangular parallelepiped shape, and the outer tub 4 is cylindrical. So outer tank 4
It is attached to the portion corresponding to the corner of the housing 2 where the gap between the housing 2 and the housing 2 is the widest. As shown in FIGS. 4 and 5, this portion is also a portion where the suspension mechanism SP is provided. Therefore, in order to avoid contact with the suspension mechanism SP, it is preferable that the case 61 is provided as high as possible. At this time, if it is provided too far, the length of the case 61 becomes short, the catalyst 66 provided in the air passage 62 must be made small, and ozone may not be sufficiently decomposed. Therefore, the length of the case 61 is preferably such that the catalyst 66 having a size capable of sufficiently decomposing ozone can be attached and the contact with the suspension mechanism SP can be avoided. It is preferable to be approximately 1/3 to 1/2.
Note that the number of cases to be attached is not limited to one, and a plurality of cases may be attached.

Next, a flow until the excess ozone is decomposed and exhausted from the vent hole 65 of the case 61 will be described with reference to FIGS. In addition, the arrow in FIG. 11 has shown the flow of the surplus ozone. Surplus ozone is used in the washing process by being mixed with liquid or used in the air wash, etc., and is not involved in dissolution and sterilization reactions. It is full.

And when this surplus ozone is pushed up with the rise of the water level in the washing process or the like and the supply of the cleaning air by the air wash, the surplus ozone flows out from the groove 11a formed in the cover plate 11, and this groove 11a It flows into the air passage 62 of the case 61 communicated with the air. And when ozone contacts the catalyst 66 attached to the case 61, the ozone is decomposed,
The ozone concentration is reduced. Thereafter, the decomposed gas is exhausted through a vent hole 65 formed in the back surface 61 a of the case 61.

1: Washing machine 2: Housing 3: Washing tub 4: Outer tub 4a: Outer wall 4b: Vertical wall 4c: Screw hole 5: Drum (inner tub) 6: Motor 10: Outer lid 11: Cover plate 11a: Groove 1
1b: Overhang part 11c: Fitting groove 13: Upper surface opening 14: Pulsator (stirring blade) 15
: Air supply unit 16: Air supply unit 17: Water supply unit 18: Ozone generator 19: Blower 20: Filter for drying 21: Heater 22: Drying air passage 23: Water supply valve 24: Water inlet unit 26: Bath water pump 39: Drainage Trap part 61: Case 61a: Back face 61b, 61c: Side face 61d: Bottom part 61e: Opening part 61f: Fitting protrusion 61g: Locking groove 61h: Claw part 61i: Steam hole 61j: Vertical groove 61k: Screwing protrusion 62: Wind Road 62a: Space 63: Catalyst mounting part 64: Absorbent mounting part 65:
Vent hole 65a: Rib 66: Catalyst 67: Absorbent material 68: Elastic body 68a: Elastic body piece
69: Fixed plate 69a: Clearance 69b: Hill part 69c: Locking claw K: Annular space SP: Suspension mechanism

Claims (13)

A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate covering the upper side of the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
The washing machine according to claim 1, wherein a catalyst capable of decomposing the ozone is disposed between the groove portion and the vent hole in the air passage. A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole ,
The said case is provided in the part in which the clearance gap between the said housing | casing and the outer wall of the said outer tub is separated most . A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole ,
The said case is formed in the length of the range of X / 3 <= L <= X / 2, when the length of the said case is set to L and the height of the said outer tub is set to X, The washing | cleaning characterized by the above-mentioned Machine. A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole ,
The washing machine according to claim 1, wherein a rib is provided inside the air passage so as to surround a periphery of the air hole in the air hole provided in the case . The washing machine according to claim 4 , wherein a part of the rib corresponding to the downstream side of the air passage is opened. A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole,
A washing machine, wherein a liquid absorbent material is provided at the bottom of the case . The washing machine according to any one of claims 1 to 6 , wherein a gap is formed in the case between at least one surface of the inner surface of the case and the catalyst. A washing tub in which the inner tub is rotatably provided in the outer tub provided in the housing;
An entrance for taking in and out the laundry in the washing tub is configured, and a cover plate that covers the outer tub,
A water supply unit for supplying a liquid such as tap water to the washing tub;
A blower unit for supplying gas to the washing tub;
An ozone generator for mixing ozone with at least one of the liquid and the gas supplied into the washing tub;
In a washing machine comprising:
At least one bottomed case in which a hollow air passage is formed inside is mounted on the outer wall of the outer tub along the vertical direction of the outer tub,
The outer surface of the case is provided with at least one vent hole connected to the air passage,
The cover plate is formed with a groove communicating with the air passage,
In the air passage, a catalyst capable of decomposing the ozone is disposed between the groove and the vent hole ,
The washing machine , wherein the catalyst is fixed to the case via an elastic body . In the case, a gap is formed between at least one surface of the inner surface of the case and the catalyst ,
The washing machine according to claim 8 , wherein the elastic body is not provided in the catalyst on the gap side . The washing machine according to any one of claims 1 to 9 , wherein the air passage is formed by an outer wall of the outer tub and the case. Wherein the cover plate space is provided in a position that communicates with the groove, the catalyst according to any one of claims 1 to 10, characterized in that it is disposed between the vent hole and the space Washing machine. The washing machine according to any one of claims 1 to 11 , wherein the catalyst is any one of activated carbon, metal oxide, alumina, silica gel, or zeolite. The washing machine according to any one of claims 1 to 12 , wherein the catalyst is formed in a lattice shape or a honeycomb shape in a plan view.

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