JP2018042639A - Washing and drying machine - Google Patents

Abstract

An object of the present invention is to provide a washing / drying machine having improved durability of a sterilization / deodorizing function. In the disinfection / deodorization course, after driving the ozone generation means (13) and the blower fan (9) for a predetermined time, only the blower fan (9) is driven to sterilize and deodorize clothes and the like, and then open / close a valve. By opening the air blower 14 and driving the blower fan 9, the ozone remaining in the washing tub 2 and the outer tub 3 is decomposed into oxygen by the ozone decomposing means 15 and then exhausted to the outside, thereby generating excessive ozone. In particular, the ozonolysis means 15 is used only to decompose a small amount of residual ozone, so that the germs can be removed and deodorized efficiently. Further, thereby, the ozone decomposing means 15 does not generate abnormal heat and the durability of the ozone generating means 13 and the ozone decomposing means 15 can be improved. [Selection diagram] Fig. 1

Description

  The present invention relates to a washing and drying machine that performs sterilization and deodorization of clothes, small items, and the like housed in a tank by supplying ozone into the tank.

  Conventionally, this type of washing / drying machine is rotatably arranged in the outer tub and in the outer tub in order to sterilize and deodorize germs and cloth products, leather products, toys, and small bacteria. A configuration for supplying ozone into the washing tub has been proposed (see, for example, Patent Document 1).

  FIG. 5 is a longitudinal sectional view of the washing / drying machine described in Patent Document 1, and FIG. 6 is a perspective view of a drying filter of the washing / drying machine.

  5 and 6, an outer tub 104 is supported by a vibration isolator (not shown) in the housing 102 so that the outer tub 104 is supported by a suspension. Is included.

  The motor 106 is provided on the outer bottom of the outer tub 104, and transmits the power of the motor 106 to the transmission mechanism 140 to rotationally drive the pulsator 114 and the washing tub 105.

  The entrance 109 of the upper surface opening of the outer tub 104 is sealed by a cover plate 111 attached to the peripheral portion of the entrance 109 in an airtight state and an inner lid 112 attached to the cover plate 111 so as to be openable and closable. For this reason, the cover 108 and the inner lid 112 are configured to open and close the entrance / exit 108 of the upper surface opening of the washing tub 105.

  At a position above the entrance 109 of the upper surface opening of the outer tub 104 and the entrance 108 of the upper surface opening of the washing tub 105, a blower unit 116, a water supply unit (not shown), and ozone generation are provided at the upper rear portion in the housing 102. A blast water supply unit 115 including a device (not shown) is accommodated. And the ozone generator is connected to the ventilation unit 116 via the air tube (not shown).

  The blower unit 116 includes an electric motor 119A that is rotationally driven in a drying process, a blower 119 serving as a purifying air extinguishing means and a blower 119B, and a heater that heats air circulated into the outer tub 104 by the blower 119. 121 and air is circulated in a circulation air passage (not shown) in the drying process. The rotary blade 119B and the heater 121 are accommodated in an air passage in the synthetic resin case 116P.

  The circulation air passage is disposed outside the outer tub 104, and the hot and humid air in the tub is sucked out from the connection pipe 141 from the upper part of the outer tub 104, and the sucked air is heated by the heater 121 to be above the outer tub 104. It is an air path for circulating air so that it may flow in into a tank from the connection pipe 142 of a part.

  The blower unit 116 has a drying filter 120 disposed on the air suction side of the blower 119. The drying filter 120 is for capturing foreign matters such as lint contained in the air circulating through the circulation air passage. A decomposition filter 161 is attached to the drying filter 120.

The decomposition filter 161 is obtained by supporting a catalyst capable of decomposing ozone on a carrier, and the catalyst uses activated carbon having a high decomposition effect.

  With the above configuration, in order to execute the sterilization mode in the drying process, the ozone generator is operated, and the purified air containing the generated ozone is sucked into the blower unit 116 through the drying filter 120, It is circulated into the outer tub 104. The ozone purification air can be used to disinfect and deodorize clothes and the like housed in the washing tub 105.

  In the sterilization mode, the purification air containing ozone is filled in the tank, but ozone can be quickly decomposed by the decomposition filter attached to the drying filter 120.

JP 2011-244984 A

  However, in the above-described conventional configuration, in the sterilization mode, ozone decomposition by the catalyst is performed in equilibrium with ozone generation. Therefore, in order to maintain the ozone concentration in the washing tub, ozone generation and decomposition are performed more than necessary. As a result, the efficiency was very poor, and there was a problem with the durability of the ozone generator and the ozone decomposition catalyst.

  In addition, depending on the catalyst, there is a problem that when it is allowed to act for a long time, the temperature becomes very high due to heat generated by the ozonolysis action.

  The present invention solves the above-described conventional problems. When performing sterilization and deodorization of an object with ozone, ozone generation and ozone decomposition are performed by efficiently performing ozone generation and residual ozone decomposition treatment. It is an object of the present invention to provide a washing / drying machine having improved catalyst durability.

  In order to solve the above-described conventional problems, a washing and drying machine according to the present invention includes a washing tub for storing laundry, an outer tub in which the washing tub is rotatably mounted, and heating means for heating the air in the outer tub. A ventilation path that allows circulation through, a blowing path that connects a blowing outlet to the outer tank, a blowing means that pumps and circulates the air in the blowing path, an ozone generating means that supplies ozone into the outer tank, An exhaust path that branches off from the air supply path and discharges air to the outside, an on-off valve provided in the vicinity of a connection portion between the air supply path and the exhaust path, and provided on the downstream side of the on-off valve in the exhaust path. An ozone decomposing catalyst; and a control means for controlling driving of the washing tub, the air blowing means, the ozone generating means, the on-off valve, etc., and the control means drives the ozone generating means and the air blowing means to make clothing. Perform sterilization and deodorization After, it opened the on-off valve, in which the ozone remaining in the washing tub and adapted to emit to the outside after decomposed into oxygen by the ozone catalyst.

  This allows ozone to act on germs and organic matter adhering to clothing, small items, etc., and does not cause excessive ozone generation or ozone decomposition, especially because the ozone decomposition means only decomposes a small amount of residual ozone. Therefore, sterilization and deodorization are performed efficiently. This also improves the durability of the ozone generation means and the ozone decomposition means without causing the ozone decomposition means to generate abnormal heat.

The washing / drying machine of the present invention can perform the sterilization / deodorization effect by the ozone generating means and the decomposition treatment of residual ozone safely and efficiently, and improve the durability of the ozone generator and the ozone decomposition catalyst.

Sectional drawing of the washing-drying machine in embodiment of this invention Rear view of the inside of the washer / dryer Flow chart of sterilization and deodorization course of the washer / dryer Sequence table of the sterilization and deodorization course of the washer / dryer Longitudinal section of a conventional washer / dryer Perspective view of the drying filter of the washing dryer

  The first invention is a laundry tub for storing laundry, an outer tub in which the laundry tub is rotatably mounted, air in the outer tub can be circulated via a heating means, A blowing path connected to the tank; a blowing means for pumping and circulating the air in the blowing path; an ozone generating means for supplying ozone into the outer tank; and a branching from the blowing path and discharging the air to the outside. An exhaust path, an opening / closing valve provided in the vicinity of a connection portion between the blowing path and the exhaust path, an ozone decomposition catalyst provided on the downstream side of the opening / closing valve in the exhaust path, the washing tub, and the blowing means And the control means for controlling the driving of the ozone generating means and the on-off valve, etc., and the control means drives the ozone generating means and the air blowing means to sterilize and deodorize clothing and the like, Open the on-off valve and leave it in the washing tub The ozone is obtained so as to emit to the outside after decomposed into oxygen by the ozone catalyst.

  This allows ozone to act on germs and organic substances adhering to clothing, small items, etc., and does not generate excessive ozone or decompose ozone, especially because the ozone decomposition means only decomposes a small amount of residual ozone. Therefore, sterilization and deodorization are performed efficiently. This also improves the durability of the ozone generation means and the ozone decomposition means without causing the ozone decomposition means to generate abnormal heat.

  In the second invention, in particular, the control means of the first invention has a lower rotation speed of the blowing means in the step of discharging residual ozone to the outside than the rotation speed of the blowing means during the sterilization / deodorization process by ozone. By setting, the amount of air flowing through the exhaust path can be suppressed, the contact time between the ozone decomposition means and ozone can be extended, and the ozone decomposition reaction can be performed reliably.

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

(Embodiment 1)
FIG. 1 is a sectional view of a washing / drying machine according to an embodiment of the present invention, and FIG. 2 is a rear view of the inside of the washing / drying machine.

  1 and 2, an outer tub 3 is elastically supported in a washing machine main body 1 so as to be swingable by a suspension structure (not shown). In the outer tub 3, a washing tub 2 formed in a bottomed cylindrical shape is supported with its axial center direction inclined downward from the front side to the back side.

  On the front side of the outer tub 3, a clothing doorway 5 leading to the opening end of the washing tub 2 is formed, and the door 7 that opens and closes the opening provided in the upward inclined surface on the front side of the washing machine body 1 is opened. By doing so, the laundry can be taken in and out of the laundry tub 2 through the clothing entrance 5.

In the washing tub 2, a large number of through holes 6 that communicate with the outer tub 3 are formed on the peripheral surface, and stirring protrusions (not shown) for stirring clothes are provided at a plurality of positions on the inner peripheral surface. The washing tub 2 is rotationally driven in the normal rotation and reverse rotation directions by a motor 4 attached to the back side of the outer tub 3.

  In addition, a water injection pipe 17 and a drain pipe 18 are connected to the outer tank 3, and water is poured into and drained into the outer tank 3 by controlling a water injection valve and a drain valve (not shown).

  A rotation detector 19 for detecting the rotation of the motor 4 is provided on the back surface of the motor 4. By detecting the rotation speed of the motor 4, the cloth amount detection control and the rotation speed of the washing tub 2 are detected. Control is performed. A control device 20 having a control means (not shown) for controlling the operation of the washing / drying machine is provided on the inner surface of the front portion of the washing machine body 1.

  When the door 7 is opened, the laundry and the detergent are put into the washing tub 2, and the operation panel 16 provided on the front surface of the washing machine body 1, for example, is operated to start the operation, In this case, a predetermined amount of water is injected from the water injection pipe 17, and the washing tub 2 is rotationally driven by the motor 4 to start the washing process. As the laundry tub 2 rotates, the laundry stored in the laundry tub 2 is lifted in the rotation direction by the stirring protrusion provided on the inner peripheral wall of the laundry tub 2, and agitated by dropping from the lifted appropriate height position. Since the operation is repeated, the laundry is washed by the action of tapping.

  After the required washing time, the dirty washing liquid is discharged from the drain pipe 18 and the washing liquid contained in the laundry is dehydrated by a dehydrating operation that rotates the washing tub 2 at a high speed. Water is injected from the water injection pipe 17 and a rinsing process is performed. Also in the rinsing process, the laundry stored in the washing tub 2 is repeatedly washed by the stirring operation of being lifted and dropped by the stirring protrusions by the rotation of the washing tub 2, and the rinsing is performed. When the rinsing process is finished, the water is drained and the moisture of the laundry is dehydrated by a dehydrating operation of rotating the washing tub 2 at a high speed, and the washing is finished.

  The washing / drying machine has a function of drying the laundry stored in the washing tub 2, and the circulation air passage 11 evacuates and dehumidifies the air in the outer tub 3, and heats and dries the dried air. The air is blown again into the outer tub 3. In the middle of the circulation ventilation path 11, a heat pump unit 12 in which heating means such as a compressor and a radiator, dehumidification means such as a decompressor and an evaporator are connected by piping, and a blower fan 9 as a blowing means are provided. .

  In the drying process using the circulation air passage 11, foreign matter such as lint generated from laundry such as clothes is circulated in the air circulated through the circulation air passage 11, and the eyes of the evaporator and the condenser are circulated. Since it is easy to impede the drying process such as clogging, biting into the rotating part of the blower fan 9 and accumulation on the inner surface of the blower fan 9, foreign matter in the circulating air is introduced in the middle of the circulation blower path 11. A filter 8 to be removed is provided.

  Further, the washing / drying machine is provided with a function of sterilizing and deodorizing the laundry and small items accommodated in the washing tub 2.

  The ozone generating means 13 for generating ozone for sterilization and deodorization is provided in the middle of the circulating air passage 11 and causes the ozone to flow into the circulating air passage 11 by the operation of the blower fan 9, Through the washing tub 2 (not shown).

  Further, an exhaust path 10 is connected above the circulating air path 11, and an open / close valve 14 is provided in the vicinity of the connection portion of the exhaust path 10. The on-off valve 14 is opened and closed as necessary, and opens to release the residual ozone in the circulating air passage 11 to the outside. An ozone decomposing means 15 comprising a catalyst that decomposes residual ozone into oxygen is provided downstream of the on-off valve 14 in the exhaust passage 10.

  The operation and action of the washing / drying machine configured as described above will be described below.

  FIG. 3 is a flowchart of the sterilization / deodorization course of the washing / drying machine in the embodiment of the present invention, and FIG. 4 is a sequence table of the sterilization / deodorization course of the washing / drying machine.

  3 and 4, when the sterilization / deodorization course is selected by operating the operation panel 16, and the sterilization / deodorization course is started, the blower fan 9 is driven at about 3000 rpm in the present embodiment (step At the same time, the ozone generating means 13 is driven (step S2). Thereby, ozone flows together with air in the circulation air flow path 11 and is released into the washing tub 2, thereby increasing the ozone concentration in the washing tub 2.

  In the present embodiment, when the ozone generating means 13 is driven for 5 minutes (Y in Step S3), the operation of the ozone generating means 13 is stopped (Step S4), and only the blower fan 9 is continuously operated for 20 minutes ( Step S5). Thereby, the air and ozone in the outer tub 3 are circulated, and the contact between ozone and clothes can be performed efficiently.

  In the present embodiment, when the blower fan 9 is driven for 20 minutes (Y in step S5), the open / close valve 14 provided in the vicinity of the connection portion between the circulation blower path 11 and the exhaust path 10 is opened (step S6). At the same time, in the present embodiment, the rotational speed of the blower fan 9 is reduced to about 1500 rpm (step S7), and by operating for 5 minutes in that state (step S8), the ozone remaining in the outer tub 3 is reduced. It is discharged outside through the exhaust path 10. At this time, the ozone decomposing means 15 provided in the exhaust passage 10 comes into contact with the residual ozone, decomposes ozone into oxygen, and then releases it to the outside.

  In the present embodiment, when the blower fan 9 is driven for 5 minutes (Y in step S8), the blower fan 9 stops and the sterilization / deodorization course ends (step S9).

  As described above, in the present embodiment, in the sterilization / deodorization course, after the ozone generating means 13 and the blower fan 9 are driven for a predetermined time, only the blower fan 9 is driven to sterilize and disinfect clothing and the like. After the odor is generated, the opening / closing valve 14 is opened to drive the blower fan 9, and the ozone remaining in the washing tub 2 and the outer tub 3 is decomposed into oxygen by the ozone decomposing means 15 and then exhausted to the outside. By doing so, ozone can act on germs and organic matter adhering to clothing, small items, etc., and excessive ozone generation and ozonolysis are not performed. In particular, the ozonolysis means 15 decomposes a small amount of residual ozone. Since it is used only for the purpose, sterilization and deodorization are performed efficiently. Thereby, the ozone decomposition | disassembly means 15 does not raise | generate an abnormal heat | fever, but durability of the ozone generation means 13 and the ozone decomposition | disassembly means 15 can be improved.

  In the sterilization / deodorization course, the rotation speed of the blower fan 9 during the process of opening the on-off valve 14 and exhausting ozone to the outside is determined by the rotation speed of the blower fan 9 during the sterilization / deodorization process using ozone. By setting it to be low, the amount of air flowing through the exhaust path can be suppressed, the contact time between the ozone decomposition means 15 and ozone can be extended, and the ozone decomposition reaction can be performed reliably.

  In the present embodiment, the heat pump unit that dehumidifies and heats the air in the outer tub 3 is provided, but it may be configured to include a heating means for heating the air in the outer tub 3.

  As described above, the washing and drying machine according to the present invention performs the sterilization / deodorization effect by the ozone generating means and the decomposition treatment of residual ozone safely and efficiently, and improves the durability of the ozone generator and the ozone decomposition catalyst. Since it can be improved, it can be applied to other washing machines and clothes dryers having a sterilizing / deodorizing function.

DESCRIPTION OF SYMBOLS 2 Washing tub 3 Outer tub 4 Motor 9 Blower fan 10 Exhaust path 11 Circulating blast path 12 Heat pump unit 13 Ozone generating means 14 On-off valve 15 Ozone decomposing means

Claims (2)

  A washing tub that accommodates laundry, an outer tub that rotatably houses the washing tub, and an air passage that allows air in the outer tub to be circulated via a heating means and has a blowing outlet connected to the outer tub A blowing unit that pumps and circulates the air in the blowing path, an ozone generating unit that supplies ozone into the outer tub, an exhaust path that is branched from the blowing path and discharges air to the outside, and the blowing An opening / closing valve provided in the vicinity of a connection portion between the passage and the exhaust passage, an ozone decomposition catalyst provided on the downstream side of the opening / closing valve in the exhaust passage, the washing tub, the blowing means, the ozone generation means, and Control means for controlling the driving of the on-off valve, etc., and by the control means to drive the ozone generating means, the air blowing means to disinfect and deodorize clothing, etc., then open the on-off valve, Ozone remaining in the washing tub Washing and drying machine which is adapted to release to the outside after decomposed into oxygen by Zon catalyst.   The washing and drying machine according to claim 1, wherein the rotational speed of the blower means in the step of discharging residual ozone to the outside is set lower than the rotational speed of the blower means during the sterilization / deodorization process using ozone.

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