JP2009131401A - Washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing machine capable of simultaneously clarifying water used in a washing process while performing the washing process. <P>SOLUTION: As a circulation water path for circulating water accumulated in a washing water tub 3, a first circulation water path 55, a second circulation water path 57, a U turn part 26 and a third circulation water path 59 are provided. Then, a venturi tube 58 is connected between the U turn part 26 and the third circulation water path 59. To the venturi tube 58, clarifying air containing ozone is supplied through an air tube 61. The water circulated in the circulation water path is led above the water level 72 of the water accumulated in an outer tub 4 by the second circulation water path 57 and powerfully flows down in the venturi tube 58 above the water level 72. Thus, in the venturi tube 58, the clarifying air supplied from the air tube 61 can be efficiently taken into the circulated water and the circulated water is excellently purified. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a washing machine, and more particularly to a washing machine that performs a washing process while purifying water used for washing.

The present applicant has previously proposed a washing machine equipped with a mechanism for purifying water used for washing using ozone. (See Patent Document 1)
The washing machine described in Patent Literature 1 includes a water storage tank, and has a configuration for purifying water stored in the water storage tank using ozone.
JP 2007-209520 A

The washing machine disclosed in Patent Document 1 is configured such that the water used for washing is stored in a water storage tank and can be reused by purifying the stored water with ozone. is there.
On the other hand, there is a washing machine that can perform better washing using purified water by performing a washing operation while purifying water used for washing during washing instead of water after being used for washing. It was desired.

The present invention has been made based on such a background, and a main object thereof is to provide a washing machine capable of performing washing while purifying water used for washing during a washing operation.
Another object of the present invention is to provide a washing machine that purifies the washing water by mixing the purification air into the washing water during the washing operation, and is capable of efficiently mixing the purification air into the washing water. For other purposes.

  The present invention further circulates the washing water during the washing operation and purifies the washing water during the circulation, so that the washing water can be circulated well, and there is no clogging of foreign matter, etc., and the washing water is efficiently purified. Another object is to provide a washing machine capable of performing the above.

  The invention according to claim 1 is provided in the washing water tub, a circulation water channel that is disposed outside the washing water tub, both ends are connected to the washing water tub, and the circulation water channel. A pump that pumps out the water and discharges the pumped water from the other end of the circulating water channel into the washing tub, and is provided upstream of the pump in the circulating water channel as viewed in the direction of water flow. A filter for capturing foreign matter by filtering water, a purifying air generator for generating purifying air, and a downstream side of the pump in the circulation channel as seen in the direction of water flow. A gas-liquid mixer for mixing the purification air generated by the purification air generator into the water flowing through the circulation channel, and the gas-liquid mixer has a throttle channel through which water passes. Tube and venturi tube An air supply path for supplying purified air to the throttle section flow path, and the inner diameter of the throttle section flow path of the venturi tube is made larger than the filter hole of the filter, The venturi pipe is disposed so that water passes from above to below at a position higher than the water level of the water stored in the washing tub, and the circulation channel allows water discharged from the pump to flow through the venturi. A washing machine comprising a water channel that guides the pipe upward, allows the water to flow from top to bottom, passes the venturi pipe from top to bottom, and returns the water from below the washing tub to the washing tub. It is.

  The invention according to claim 2 is provided in the washing water tub, a circulation water channel disposed on the outside of the washing water tub, both ends being connected to the washing water tub, and the circulation water channel, from one end of the circulation water channel to the inside of the washing water tank A pump that discharges the pumped water to return the pumped water from the other end of the circulation channel into the washing tub, a purification air generator for generating purification air, and a water flow direction in the circulation channel And a gas-liquid mixer provided on the downstream side of the pump for mixing the purification air generated by the purification air generator into the water flowing through the circulation water channel, the gas-liquid mixer comprising: A venturi tube having a throttle passage through which water passes, and an air supply passage joined to the throttle passage of the venturi pipe to supply purification air to the throttle passage, In the washing tub The circulating water channel guides the water discharged from the pump to the upper side of the venturi pipe, and the water flows from the upper side to the lower side. The washing machine is characterized in that it includes a water channel that passes through the venturi pipe from top to bottom.

  Invention of Claim 3 is provided in the wash water tank, the circulation water channel which is arrange | positioned on the outer side of the wash water tank, both ends are connected to the wash water tank, and the circulation water channel, and the inside of the wash water tank from one end of the circulation water channel A pump that pumps out the pumped water and discharges the pumped water back from the other end of the circulating water channel into the washing tub, and is provided upstream of the pump in the circulating water channel as viewed in the direction of water flow. Provided in the downstream of the pump in the circulating water channel as viewed in the direction of water flow. And a gas-liquid mixer for mixing the purification air generated by the purification air generator into the water flowing through the circulation channel, and the gas-liquid mixer has a throttle channel that allows water to pass therethrough. Venturi tube and Venturi And an air supply path for supplying purified air to the throttle section flow path, and the inner diameter of the throttle section flow path of the venturi pipe is larger than the filter hole of the filter It is a washing machine characterized by being made.

  Invention of Claim 4 is provided in the washing water tank, the circulation water channel which is arrange | positioned on the outer side of the washing water tank, both ends are connected to the washing water tank, and the circulation water channel. A pump that pumps out the pumped water and discharges the pumped water back from the other end of the circulating water channel into the washing tub, and is provided upstream of the pump in the circulating water channel as viewed in the direction of water flow. Provided in the downstream of the pump in the circulating water channel as viewed in the direction of water flow. And a gas-liquid mixer for mixing the purification air generated by the purification air generator into the water flowing through the circulation channel, and the gas-liquid mixer has a throttle channel that allows water to pass therethrough. Venturi tube and Venturi And an air supply path for supplying purification air to the throttle section flow path, and the circulating water path contains water mixed with purification air by the gas-liquid mixer. The washing machine includes a water channel returning from the lower side of the washing tub into the washing tub.

  According to a fifth aspect of the present invention, there is provided a washing tub, a circulation channel disposed on the outside of the washing tub and connected to the washing tub at both ends, and provided in the circulation channel. A pump that discharges the pumped water to return the pumped water from the other end of the circulation channel into the washing tub, a purification air generator for generating purification air, and a water flow direction in the circulation channel And a gas-liquid mixer provided on the downstream side of the pump for mixing the purification air generated by the purification air generator into the water flowing through the circulation water channel, the gas-liquid mixer comprising: And a venturi pipe having a throttle section flow path through which water passes, and an air supply path that joins the throttle section flow path of the venturi pipe and supplies purification air to the throttle section flow path. , A washing machine.

According to a sixth aspect of the present invention, in the gas-liquid mixer, steam at the time of drying flows into the air supply path joined to the throttle portion flow path of the venturi pipe through the venturi pipe and the air supply direction The washing machine according to any one of claims 1 to 5, wherein a check valve is provided for preventing a reverse flow in the reverse direction.
According to a seventh aspect of the present invention, the gas-liquid mixer is fixed to the outer surface of the washing tub, and the gas-liquid mixer protruding from the outer surface of the washing tub is protected in the vicinity of the gas-liquid mixer. The washing machine according to any one of claims 1 to 6, wherein a projection for forming is formed.

  According to an eighth aspect of the present invention, the filter includes a case and a filtering member that is accommodated in the case and can be taken out from the case, and the case allows water to flow out of the washing tub into the case. An inflow port, an outflow port for discharging the water in the case as reused water, and a drain port for discharging the water in the case to the outside of the machine are formed, and the filtering member is relatively small A reused water filtration surface having a filtration hole formed therein and a drainage water filtration surface having a relatively large filtration hole formed therein, and water flowing into the case from the inflow port is disposed on the reused water filtration surface. The washing machine according to claim 1, 3 or 4, characterized in that only what has passed through can be made to exit from the outlet.

The invention according to claim 9 is characterized in that the outlet is formed relatively above the case, the drain outlet is formed relatively below the case, and the filtering member is disposed in the case, The washing machine according to claim 8, wherein the reuse water filtration surface is located above the discharge port filtration surface.
According to a tenth aspect of the present invention, the case includes a long shape portion, and is arranged so that the long shape portion is inclined with respect to the horizontal direction, and an outflow port is formed at a relatively upper position of the long shape portion. 10. The washing machine according to claim 9, wherein a drain outlet is formed at a relatively lower position.

  In an eleventh aspect of the present invention, in order to prevent water that has not passed through the reused water filtration surface from moving toward the outlet, the filtration member projects outward from the periphery of the reused water filtration surface. The washing machine according to any one of claims 8 to 11, further comprising a rib that narrows a gap between the filtering member and the inner wall of the case to a predetermined dimension or less.

According to the first aspect of the present invention, when the clothes are stored in the washing tub and the water is stored and the washing process (washing process and rinsing process) is performed, the water in the washing tub is circulated using the circulation channel. The circulating water is filtered and purified by a filter, and purified air (for example, air containing ozone) is mixed into the water by a gas-liquid mixer to purify the water.
The gas-liquid mixer includes a venturi pipe having a throttle passage and a supply path for purifying air joined to the throttle passage of the venturi pipe, and the venturi pipe is water stored in the washing tub. It is arranged so that water passes from top to bottom at a position higher than the water level. For this reason, the circulating water flows vigorously in the venturi pipe, generates a negative pressure due to the venturi effect, and efficiently mixes the purifying air into the water. The water circulating through the venturi tube is filtered by a filter, and there is no possibility that foreign matters such as lint contained in the water are clogged in the flow passage of the venturi tube.

  In the invention according to claim 2, as in the invention according to claim 1, the water in the washing tub is circulated in the washing process, and the purification air is mixed into the water during the circulation to purify the water. Can do. Even in the invention of claim 2, the venturi pipe included in the gas-liquid mixer is arranged so that water passes from the top to the bottom at a position higher than the water level stored in the washing tub, In the venturi tube, the purification air can be efficiently mixed into the water.

  According to invention of Claim 3, there exists an effect similar to invention of Claim 1. In addition, since the inner diameter of the restriction channel of the venturi tube is made larger than the filtering hole of the filter, the circulating water is first filtered by the filter, and foreign matters larger than the filtering hole are captured by the filter. The Since the fine foreign matter that has passed through the filter is smaller than the inner diameter of the throttle passage of the venturi tube, the foreign matter does not clog the throttle passage of the venturi tube and the water circulation performance does not deteriorate.

  According to the fourth aspect of the present invention, the water pumped out of the washing tub and circulated through the circulation channel and purified by mixing the purification air is returned to the washing tub from below the washing tub. In the aquarium, fine bubbles of purifying air mixed in the water floats up from below in the water stored in the washing tub, and quickly spreads throughout the water stored in the washing tub. It is possible to efficiently purify the water stored in the clothes and the clothes contained in the washing tub.

According to the fifth aspect of the present invention, in the washing process, the water stored in the washing tub can be circulated using the circulation channel, and the water can be purified by mixing the purification air into the circulating water.
According to the sixth aspect of the present invention, it is possible to prevent the steam generated in the washing tub from flowing back during the drying through the air supply path joined to the throttle section flow path of the venturi pipe.

According to the seventh aspect of the present invention, in the washing process, even if the washing tub is shaken and hits the casing, the gas-liquid mixer can be prevented from being broken.
According to invention of Claim 8, the water pumped out from the washing tub can be circulated as reused water through a suitable filtration hole.
According to the ninth aspect of the present invention, the water that is pumped from the washing tub and circulated is filtered efficiently. That is, the reused water filtration surface capable of capturing fine foreign matters is located above the outlet filtration surface for capturing large foreign matters, and thus is included in the circulated water. Large foreign substances are likely to sink downward in the case, and the ratio of adhering to the reused water filtration surface is small, so that water to be filtered for reuse can be efficiently passed through the reused water filtration surface. it can.

According to the tenth aspect of the present invention, since foreign matters contained in the circulating water tend to sink downward in the water, the filtration efficiency is improved by adopting a configuration in which large foreign matters are less likely to adhere to the reused water filtration surface. Can be made.
According to the eleventh aspect of the present invention, even if a large amount of foreign matter is contained in the water that is about to flow from the periphery of the filtration surface to the outlet, the foreign matter is reliably captured, and the filter is downstream. It is possible to reliably prevent water containing large foreign matter from circulating.

Hereinafter, with reference to the drawings, a configuration of a so-called diagonal drum type washing and drying machine will be described in detail as an embodiment of the present invention.
<Outline of configuration and operation of the washer / dryer>
FIG. 1 is a right side view of a longitudinal section of a washing / drying machine 1 according to an embodiment of the present invention. The washing / drying machine 1 includes a washing tub 3 disposed obliquely in a housing (housing) 2. The washing tub 3 includes an outer tub 4 for collecting water during washing and a drum 5 rotatably accommodated in the outer tub 4. The drum 5 is rotated around a rotation shaft 7 by a DD motor 6 provided behind the outer tub 4. The rotating shaft 7 extends obliquely upward toward the front and has a so-called oblique drum structure. The entrance 8 of the drum 5 and the entrance 9 of the outer tub 4 are opened and closed by a circular door 10 attached to the housing 2. The door 10 is opened, and clothes (laundry) are taken into and out of the drum 5 through the entrances 8 and 9.

  One of the features of the washing / drying machine 1 is that a tank 11 for storing used water (recycled water) is provided below the washing water tank 3. This tank 11 has an inner volume of about 8.5 liters, and as will be described later, water used for rinsing is stored, and the water is used for heat exchange and lint flowing in the circulation air passage in the drying process. It is used as cleaning water. An electrical component 12 including a main control board is provided in the lower front portion in the housing 2, and an electrical component 13 for display and operation is provided in the upper front portion. The lower electrical component 12 includes a substrate temperature sensor 123 described later.

A blower 21 and a dry heater B125 for heating air circulated into the washing tub 3 by the blower 21 and the blower 21 that are driven in a drying process, which will be described later, are disposed above the housing 2. Yes.
FIG. 2 is a perspective view of the washing / drying machine 1 according to an embodiment of the present invention as viewed obliquely from the front, and shows the internal structure from which the housing 2 is removed. FIG. 3 is a perspective view of the washing / drying machine 1 as viewed obliquely from the rear, and shows the internal structure with the housing 2 removed.

  2 and 3, reference numeral 3 denotes a washing tub. The washing tub 3 includes an outer tub 4 and a drum 5. The washing tub 3 is supported by an elastic support member 14 including a coil spring and a damper. A tank 11 is disposed below the washing tub 3. A filter unit 15 is disposed on the front right side of the tank 11, and the filter unit 15 is connected to the washing tub 3 and the tank 11 by a predetermined hose or pipe.

  In the upper part of the washing tub 3, the faucet 16, the water supply valve 17 for controlling the supply of water from the faucet 16 to the water channel, the water inlet unit 18, and ozone for generating purification air are generated. Ozone generator 19, a blower 21 for circulating air in the drying air passage 20 in the drying process, and a drying device for capturing foreign matters such as lint contained in the air circulated through the drying air passage 20 by the blower 21. A filter unit 22 is provided.

  In the washing process, the water supply valve 17 is controlled, and the tap water supplied from the faucet 16 is stored in the washing tub 3. At that time, if the water passes through the detergent container 29 in the water inlet unit 18 and reaches the washing tub 3, the water in which the detergent is dissolved can be stored in the washing tub 3. In the washing process, the drum 5 is rotated by the DD motor 6. Further, the water in the washing tub 3 is pumped out by the circulation pump 25 via the filter unit 15, and the pumped water is guided to the upper rear surface of the outer tub 4 through the circulation water channel (second circulation water channel 57). Then, it is made to flow so as to fall from the top to the bottom, and is circulated so as to return from the lower rear surface of the washing tub 3 into the washing tub. A gas-liquid mixer 27 is interposed in the middle of the circulation channel, and in the gas-liquid mixer 27, ozone generated by the ozone generator 19 is mixed into water flowing from top to bottom. When ozone is mixed into water, the water is purified by the strong oxidation and sterilization of ozone. That is, the water in the washing tub 3 is circulated in the washing process and is used for washing while being purified by mixing ozone into the circulated water. In addition, as shown in FIG. 3, the protrusion 82 which protrudes back from the rear surface of the outer tank 4 is provided in the vicinity of the gas-liquid mixer 27, and when the outer tank 4 shakes and collides with a housing | casing etc. In addition, the gas-liquid mixer 27 attached to the rear surface of the outer tub 4 is protected.

  In the drying process, air is sucked out from below the rear surface of the washing tub 3 and guided upward through the drying air passage 20, and foreign matter is filtered by the drying filter unit 22, and washing is performed from the upper front side of the washing tub 3. It is circulated so as to flow into the water tank 3. When air circulates in the dry air passage 20, the hot and humid air is cooled and dehumidified by exchanging heat with water. Therefore, water is supplied into the drying air passage 20. That is, the structure in which the water in the tank 11 is pumped out by the drying pump 23 and supplied to a predetermined position (first position) of the drying air passage 20 through the air passage water supply passage 24 constituted by, for example, a hose. Is provided. Although not shown, a water channel is also provided for supplying tap water supplied from the faucet 16 by the water supply valve 17 to the drying air channel 20 as necessary.

  Further, as shown in FIG. 3, at the lower end of the drying air passage 20, the temperature of the dehumidified water falling in the drying air passage 20 (water after dehumidifying the circulating air by heat exchange) is detected. A dehumidified water temperature sensor 122 is provided. Further, a drum outlet temperature sensor 121 for detecting the temperature of the circulating air after heat exchange is provided above the drying air path 20. The role of the dehumidified water temperature sensor 122 and the drum outlet temperature sensor 121 will be described in detail later.

The above is the outline of the configuration and operation of the washing / drying machine 1. Next, with reference to FIG. 4, the whole structure centering on the water channel and wind path of the washing / drying machine 1 is demonstrated in detail.
<Structure of washing and drying water channel and air channel>
FIG. 4 is a diagram schematically showing a configuration centering on the water channel and the air channel of the washing / drying machine 1.
The faucet 16 is connected to the inlet of the water supply valve 17. The water supply valve 17 has four outlets, and the outlet from which water is discharged can be switched. The first outlet 28 of the water supply valve 17 is connected to the water inlet unit 18, and water passes through the detergent container 29 provided in the water inlet unit 18, and the water from which the detergent is dissolved passes through the water supply path 30 and is washed. It is made to accumulate in the water tank 3. The second outlet 31 of the water supply valve 17 is also connected to the water inlet unit 18, but the water supplied from the second outlet is supplied to the washing tub 3 through the water supply path 32 without passing through the detergent container 20. It is like that. Furthermore, a part of the water flowing into the water inlet unit 18 from the second outlet 31 is given as priming water to the bath water pump 34 through the priming water channel 33. When the bath water pump 34 is driven, the remaining hot water in the bathtub 35 is pumped up, flows into the water inlet unit 18 from the water channel 37, and is supplied to the washing tub 3 through the water supply channel 30 or the water supply channel 32.

  The third outlet 38 of the water supply valve 17 is connected to a predetermined position of the drying air passage 20 by a water passage 39. The fourth outlet 40 of the water supply valve 17 is connected to a predetermined position of the drying air passage 20 by a water passage 41. The third outlet 38 is a relatively small diameter outlet, and the fourth outlet 40 is a relatively large diameter outlet. For this reason, when the third outlet 38 is opened, a relatively small amount of water is supplied to the drying air passage 20 via the water passage 30. This water is brought into contact with hot and humid circulating air in the drying air passage 20 and contributes to heat exchange. When the fourth outlet 40 is opened, a relatively large amount of water is supplied to the drying air passage 20 through the water passage 41. This water contributes to washing away lint and other foreign matters contained in the circulating air rising in the dry air passage 20 and lint and other foreign matters adhering to the inner wall of the dry air passage 20.

  In the washing process (washing process and rinsing process), water is stored in the washing tub 3. A drain port 42 is formed at the bottom bottom of the washing tub 3 (more specifically, the bottom bottom of the outer tub 4). An inflow port of the first drain valve 44 is connected to the drain port 42 through the water channel 43, and an outflow port of the first drain valve 44 is connected to the inlet 151 of the filter unit 15 through the water channel 45. . By closing the first drain valve 44, water can be stored in the washing tub 3 (outer tub 4). The water level in the washing tub 3 is detected by a water level sensor 47 based on a pressure change in the air hose 46 branched from the water channel 43 and extending upward.

  The filter unit 15 has a case 150, and a filter main body 83 for capturing foreign matter is provided in the case 150. In addition to the inflow port 151 described above, the case 150 has a drain port 152, a first outflow port 153, and a second outflow port 154. The outlet of the second drain valve 48 is connected to the drain port 152, and the outlet of the second drain valve 48 is connected to the external drain hose 50 and the drain trap 51 via the water channel 49. Therefore, when the first drain valve 44 and the second drain valve 48 are opened, the water in the washing tub 3 is drained from the drain port 42, the water channel 43, the first drain valve 44, the water channel 45, the filter unit 15, the drain port 152, The water is discharged to the drain trap 51 through the second drain valve 48, the water channel 49, and the external drain hose 50. One end (lower end) of the overflow water channel 52 joins the water channel 49. The other end (upper end) of the overflow water channel 52 communicates with an overflow port 53 provided in the outer tub 4. Therefore, when the water is excessively accumulated in the washing tub 3 and the water level becomes equal to or higher than the predetermined water level, the water overflows from the overflow port 53, and the water is overflowed regardless of whether the second drain valve 48 is opened or closed. Is discharged to the drain trap 51 through the water channel 49 and the external drain hose 50.

An air pressure adjusting hose 54 is connected between the middle part of the overflow water channel 52 in the vertical direction and the inlet 151 of the filter unit 15. By providing the hose 54, the pressure in the washing tub 3 is equal to the pressure on the inlet 151 side of the filter unit 15, and problems such as reverse flow of water in the filter unit 15 are prevented.
One end of the first circulation water passage 55 is connected to the first outlet 153 of the filter unit 15, and the other end of the first circulation water passage 55 is connected to the suction port of the circulation pump 25. One end of a second circulation water channel 57 is connected to the discharge port of the circulation pump 25. The other end side of the second circulation water channel 57 extends upward to a position higher than the normal water level of water stored in the washing tub 3. Further, a U-turn portion 26 that is U-turned downward from above is connected to the tip. The upper end of a venturi tube 58 as the gas-liquid mixer 27 is connected to the U-turn portion 26. One end (upper end) of the third circulating water channel 59 is connected to the lower end of the venturi pipe 58, and the other end (lower end) of the third circulating water channel 59 is connected to the lower back of the washing water tank 3 (outer tank 4).

  In the washing step and / or the rinsing step, a certain amount of water is stored in the washing tub 3, the first drain valve 44 is opened, and the second drain valve 48 is closed in the washing step and / or the rinsing step. Thus, when the circulation pump 25 is driven, the water stored in the washing tub 3 is drained 42 → water channel 43 → first drain valve 44 → water channel 45 → inlet 151 → case 150 → first outlet. 153 → first circulation water passage 55 → circulation pump 25 → second circulation water passage 57 → U-turn part 26 → Venturi pipe 58 → third circulation water passage 59 → washing water tank 3

  Here, the venturi pipe 58 is provided with an air inlet 60, and the ozone generator 19 is connected to the air inlet 60 via an air tube 61. When the ozone generator 19 is activated when water flows through the venturi pipe 58, the purification air containing ozone generated by the ozone generator 19 is supplied from the air inlet 60 through the air tube 61 to the venturi pipe 58. It flows in. The inflow principle is due to a pressure difference (negative pressure) caused by water flowing in the venturi tube 58. When ozone is mixed into the circulated water, the circulated water is purified by the strong oxidizing power and sterilizing power of ozone, and washing in the washing tub 3 can be performed using the purified water.

  One end (upper end) of the water storage channel 62 is connected to the second outlet 154 of the filter unit 15, and the other end (lower end) of the water storage channel 62 is connected to the inlet of the water storage valve 63. The outlet of the water storage valve 63 is connected to the tank 11. For example, after the rinsing process is completed, when the first drain valve 44 is opened, the second drain valve 48 is closed, and the water storage valve 63 is opened in a state where the circulation pump 25 is stopped, the rinse accumulated in the washing tub 3. The water used for the drainage is caused by gravity (natural fall). Drain 42 → Water channel 43 → First drain valve 44 → Water channel 45 → Inlet 151 → Case 150 → Second outlet 154 → Water storage channel 62 → Storage valve 63 → It flows to the tank 11. Thereby, the used water used by rinsing in the tank 11 can be stored as recycled water.

  An overflow port 64 is provided above the tank 11, and one end of a water channel 65 is connected to the overflow port 64, and the other end of the water channel 65 is joined in the middle of the overflow water channel 52. Therefore, when water is to be accumulated in the tank 11 in a predetermined amount or more, the water flows from the overflow port 64 → the water channel 65 → the overflow water channel 52 → the water channel 49 → the external drain hose 50 → the drain trap 51 to be discharged. Is done.

In the washing / drying machine 1, the used water stored in the tank 1 is reused as recycled water in the drying process.
The washing dryer 1 is provided with a drying air path 20 in order to perform a drying function. The drying air channel 20 is disposed outside the washing tub 3 (outer tub 4), sucks out air in the washing tub 3 from the lower back of the outer tub 4, and washes the air from the upper front side of the outer tub 4. It is an air passage for circulating air so as to flow into the water tank 3. The drying air path 20 includes a connection pipe 66, a filter blower unit 70 (including the blower 21 and the drying filter unit 22), and a connection pipe 67. As described with reference to FIG. 1, a drying heater A124 and a drying heater B125 (not shown) are provided in the air path leading from the filter blower unit 70 to the connection pipe 67, and the circulated air is heated. . For example, a semiconductor heater can be used as the drying heater.

In the dry air path 20, the air sucked out from the washing tub 3 is dehumidified. Further, foreign matters such as lint contained in the air circulating in the dry air passage 20 and foreign matters attached to the inner wall of the dry air passage 20 are washed away. For this purpose, the recycled water stored in the tank 11 is circulated so as to pass through the drying air passage 20.
A suction port of a drying pump 23 is connected to the tank 11. One end of an air passage water supply passage 24 is connected to the discharge port of the drying pump 23, and the other end of the air passage water supply passage 24 is connected to a first position of the drying air passage 20. In the drying process, when the drying pump 23 is driven, water is supplied from the first position of the drying air passage 20 into the drying air passage 20 via the air passage water supply passage 24. As described above, the supplied water exchanges heat with the air that circulates in the drying air passage 20 from the lower side to the upper side, wash away foreign matters such as lint in the air, and the inner wall in the drying air passage 20. Rinse away any foreign objects that are about to adhere to the surface. Then, the water that has flowed downward in the drying air passage 20 passes through the drain port 42 from below the outer tub 4 with foreign matters such as lint, and goes to the water channel 43 → the first drain valve 44 → the water channel 45 → the filter unit 15. And flow. In the filter unit 15, foreign matters such as lint are captured and removed, and the water after the foreign matters are removed returns from the second outlet 154 to the tank 11 through the water storage channel 62 and the water storage valve 63.

  It is also possible to adopt a configuration in which the water that has flowed down in the drying air passage 20 does not flow into the outer tub 4 and is discharged, for example, from the lower end as the second position in the drying air passage 20 and returned into the tank 11. In the drying process, a large amount of water is required for heat exchange performed in the drying air passage 20 and cleaning of foreign matters such as lint adhering to the inner wall of the drying air passage 20. According to the washer / dryer 1, the water required for heat exchange and cleaning of foreign substances is configured to recycle the used water stored in the tank 11, and therefore, a significant water saving can be realized. Moreover, since it is the structure which circulates the water of the tank 11, the capacity | capacitance of the tank 11 can be made small and even if it provides the tank 11, it can be set as the structure by which the external appearance of a washing-drying machine does not become large.

Further, the ozone generator 19 is connected to the filter blower unit 70 via an air tube 71. For this reason, in the drying process, when the ozone generator 19 is activated, the purification air containing ozone generated by the ozone generator 19 is sucked into the filter blower unit 70 and circulated into the washing tub 3. Purifying air containing ozone can be mixed. As a result, the clothes to be dried can be deodorized and sterilized.
<Structure of circulation channel>
FIG. 5 is a rear view of the washing / drying machine 1, and the first circulation water channel 55, the circulation pump 25, the second circulation water channel 57, the U-turn unit 26, the gas-liquid mixer 27 (Venturi tube 58), and the third circulation water channel 59. Only the elements necessary for the description are shown.

  The water after being filtered by the filter unit 15 (see FIG. 4) is sucked through the first circulation water passage 55 and discharged to the second circulation water passage 57 by driving the circulation pump 25. The second circulation water channel 57 extends upward from below and guides the water to a level above the normal water level (indicated by a one-dot chain line 72) stored in the outer tub 4. The water is inverted from upward to downward by the U-turn portion 26 and flows into the gas-liquid mixer 27. Therefore, in the gas-liquid mixer 27, water flows from the top to the bottom. The gas-liquid mixer 27 is also disposed above the normal water level 72 of the water stored in the outer tub 4. For this reason, the flow direction of the water discharged from the circulation pump 25 to the second circulation water channel 57 is reversed above the water level 72, so that the gas-liquid mixer 27 falls from above to below above the water level 72. Therefore, it flows down in the gas-liquid mixer 27 vigorously. Then, it passes through the third circulation water channel 59 and flows into the outer tub from the lower back of the outer tub 4.

  Thus, since it was set as the structure containing the 2nd circulation water channel 57 for guiding water upwards rather than the water level 72 in the outer tank 4, and the U-turn part 26 which reverses the water guide | induced upwards, gas-liquid The mixer 27 can be disposed above the water level 72 of the water in the outer tub 4, and the gas-liquid mixer 27 can be disposed so as to extend in the vertical direction. As a result, the water flowing in the gas-liquid mixer 27 does not interfere with the flow of the water pressure due to the water level 72 in addition to the pumping force by the circulation pump 25, and flows down vigorously from above to below due to the action of gravity. As a result, as will be described later, in the gas-liquid mixer 27, a negative pressure is generated in the flow path, and the purified air containing ozone can be efficiently taken into the water.

  Further, the water that has flowed down the gas-liquid mixer 27 is guided downward by the third circulation channel 59 and circulated from the lower back of the outer tank 4 into the outer tank 4. This circulated water is water in which fine bubbles of purifying air containing ozone are mixed, and when the water is returned from the lower side of the outer tub 4 to the inside of the washing tub 3, the purifying air contained in the water The fine bubbles move from the bottom to the top in the washing tub 3, and the clothes can be efficiently sterilized and deodorized in the washing tub 3.

The third circulation water channel 59 may be configured to circulate water from the middle of the back surface of the outer tub 4 into the outer tub 4 without extending to the lower side of the outer tub 4.
In addition, 61 is an air tube and the purification air containing ozone is supplied to the gas-liquid mixer 27 through the air tube 61.
<Configuration of U-turn section and gas-liquid mixer>
FIG. 6 is a perspective view showing a specific configuration of the U-turn part 26 and the gas-liquid mixer 27. In this embodiment, the U-turn part 26 and the gas-liquid mixer 27 are configured by combining and connecting resin pipes. The gas-liquid mixer 27 includes a venturi 73, an air intake 74, and a buffer chamber 75.

  FIG. 7 is a longitudinal sectional view showing the internal structure of the gas-liquid mixer 27. The gas-liquid mixer 27 includes the Venturi tube 58 as described above. The Venturi tube 58 extends in the up-down direction. The upper channel 78 has a large channel diameter at the upper side, the throttle unit channel 77 has a channel size narrowed to the lower side below the upper channel 78, and the lower part of the throttle unit channel 77. Are provided with a series of three types of flow passages, the lower flow passage 79 having a gradually increased flow passage diameter, in which the flow passage diameter changes. When water flows from the upper flow path 78 to the throttle section flow path 77 to the lower flow path 79, the speed (flow velocity) of the water flowing through the throttle section flow path 77 is increased. A small hole 80 for taking in air is formed in the inner wall of the throttle channel 77. The small hole 80 is connected to a buffer chamber 75 connected to the outer surface of the venturi tube 58. Air is supplied from the air intake 74 to the buffer chamber 75. A check valve 81 made of, for example, rubber is disposed at the inlet of the buffer chamber 75. The check valve 81 does not prevent air from flowing into the buffer chamber 75 from the air intake 74, but functions to prevent gas and liquid from flowing out of the buffer chamber 75 toward the air intake 74.

  The water that flows downward from the U-turn part 26 flows into the upper flow path 78 vigorously, and the flow velocity becomes higher in the throttle part flow path 77. For this reason, the negative pressure which can take in the air of buffer room 75 via air taking-in hole 80 is produced. Due to the negative pressure, the purification air containing ozone in the buffer chamber 75 enters the throttle channel 77 through the air intake hole 80 and is mixed into the flowing water as fine bubbles.

  In addition, when the flow of water in the throttle channel 77 stops, the water flows into the buffer chamber 75 through the air intake hole 80, and further, the ozone generator 19 (see FIG. 4) from the air intake 74. There is a risk of backflow in the direction. However, in this embodiment, the buffer chamber 75 is provided with a check valve 81. As a result, the ozone generator 19 does not become defective due to the water flowing backward through the air tube 61. Further, in the drying process, steam in the washing tub 3 enters the third circulation water channel 59, enters the buffer chamber 75 through the air intake hole 80 through the venturi pipe 58, and further enters the ozone generator from the air intake 74. There is a possibility of backflowing to 19. However, the check valve 81 also prevents the backflow of steam during drying.

By the way, the inner diameter (diameter) dimension of the throttle channel 77 is set to φ = 8 mm in this embodiment, and the inner diameter φ is larger than the diameter of the filter filtering hole in the filter unit 15 as will be described later. Has been. As a result, there is no concern that foreign matter such as lint contained in the flowing water is clogged in the throttle portion flow path 77.
<Configuration of filter unit>
Next, the configuration of the filter unit 15 will be described.

As described in FIG. 2, the filter unit 15 is attached to the front right lower portion of the washing / drying machine 1. As described in FIG. 4, the filter unit 15 includes a case 150, an inflow port 151, a drainage port 152, a first outflow port 153, and a second outflow port 154.
FIG. 8 is a perspective view of the filter unit 15 and shows a perspective view of the filter unit 15 when the washing / drying machine 1 is viewed obliquely from the front.

  Referring to FIG. 8, the filter unit 15 includes a case 150, an inlet pipe 155, a drain pipe 156, outlet pipes 157 and 158, a front mounting plate 159, and mounting legs 160. Each of these members is formed of a resin (for example, polypropylene), and the front mounting plate 159 and mounting legs 160 that are integrally formed with the case 150, and a drain pipe formed separately. 156, the inflow pipe 155 and the outflow pipes 157 and 158 are liquid-tightly connected and integrated.

  In a state where the front mounting plate 159 and the mounting leg portion 160 are mounted on the casing 2 of the washing / drying machine 1, the case 150 has a longitudinal shape extending obliquely downward from the front toward the rear. A hole (not shown) is formed in the upper surface 150a of the case 150, and an inlet pipe 155 is attached to communicate with the hole. As described with reference to FIG. 4, the water channel 45 is connected to the inflow port 151 that is the opening end of the upper end of the inflow port pipe 155. The hose 54 described with reference to FIG. 4 is connected to the cylindrical protrusion 161 that is formed to project in the middle of the inflow pipe 155.

The left and right side surfaces and the bottom surface of the case 150 are case-side bottom surfaces 150b that bulge downward in an arc shape without a boundary.
The drain port pipe 156 protrudes laterally from the case side bottom surface 150 b in the direction intersecting the length direction of the case 150, more specifically in the direction orthogonal to the length direction, and the tip thereof becomes the drain port 152. ing. The drain port pipe 156 protrudes from the rear side in the length direction of the case 150 (the lower side of the case 150 extending obliquely).

  The outlet pipe 157 is bent at a right angle in the middle of the length direction, and the attachment position to the case 150 is the attachment position of the inlet pipe 155 and the drainage when viewed in the length direction of the case 150. It is an intermediate position with respect to the attachment position of the mouth pipe 156. The drain port pipe 157 is attached so as to protrude laterally from the side bottom surface 150 b of the case 150, and a distal end side that is bent by approximately 90 ° serves as a second outlet 154. Further, an outlet pipe 158 is connected so as to branch from the outlet pipe 157, and a tip of the pipe 158 is a first outlet 153. As described with reference to FIG. 4, the suction side of the second drain valve 48, the first circulation water channel 55, and the water storage water channel 62 are connected to the drain port 152, the first outlet port 153, and the second outlet port 154, respectively. .

A filter insertion hole 162 is formed in the front mounting plate 159. The filter insertion opening 162 communicates with the internal space of the case 150. The filter main body 83 (see FIG. 9) is inserted into the case 150 from the filter insertion port 162, and the operation lid 85 is turned to the state shown in FIG. 8, so that the filter unit 15 can function normally. It becomes a state.
Further, ribs 113 projecting forward are provided on both lower sides of the front mounting plate 159 where the filter insertion ports 162 are formed, and a movable body (see FIG. 21) described later can be freely rotated on the ribs 113. An engagement hole 114 for attachment is formed.

FIG. 9 is a perspective view showing a configuration of the filter main body 83. The filter main body 83 includes a basket 84 and an operation lid 85 as filtering members. The basket 84 is formed of a resin, the upper surface is opened, and a large number of filtration holes and filtration slits are arranged on the side surface and the bottom surface.
FIG. 10 is a perspective view showing the configuration of the basket 84 alone with the operation lid 85 removed from the filter body 83.

  9 and 10, the filtration holes arranged in the basket 84 include a small filtration hole 86 having a hole size (maximum diameter) of a predetermined dimension or less and a relatively large large hole size. The filter hole 87 and the slit hole 89 defined between the rods 88 arranged in a comb shape are included. The small filtration holes 86 are arranged on a part of the front left side surface and the front bottom surface of the basket 84, and the surface on which the small filtration holes 86 are arranged is a reuse water filtration surface 90. On the other hand, the rear left side surface, rear surface, part of the bottom surface and part of the right side surface of the basket 84 in which the large filtration holes 87 are arranged, and the surface on which the plurality of rods 88 are provided and the slit holes 89 are defined, It becomes the discharge water filtration surface 91. Further, partitioning ribs 92 and 93 are formed at the boundary between the reused water filtering surface 90 and the discharged water filtering surface 91 so as to protrude from the outer surface of the basket 84.

Further, the front surface of the basket 84 is closed with a sealing wall 94, and an annular flange 95 projects from the periphery of the sealing wall 94 (see FIG. 10).
As shown in FIG. 9, an operation lid 85 is rotatably fitted to the flange 95 shown in FIG. Therefore, the operation lid 85 and the basket 84 can rotate with respect to each other. A seal ring 96 made of rubber or the like is provided on the inner peripheral surface of the operation lid 85. The basket 84 of the filter main body 83 is inserted into the case 150 from the filter insertion port 162 shown in FIG. 8, and the operation lid 85 is rotated after the insertion, whereby the seal ring is formed between the filter insertion port 162 and the operation lid 85. 96 is liquid-tightly sealed, and the attachment of the filter body 83 to the case 150 is completed. In the case 150, the shape of the inner wall of the case 150 is a specific shape so that the direction of the basket 84 is a predetermined direction.

11 is a plan view of the filter unit 15, and FIG. 12 is a longitudinal sectional view of the filter unit 15 along AA in FIG. 13 is a cross-sectional view of the filter unit 15 along BB in FIG. 11, and FIG. 14 is a cross-sectional view of the filter unit 15 along CC in FIG.
As shown in FIG. 12, the basket 84 includes a rib 93 that protrudes downward from the bottom surface and extends in the front-rear direction (the length direction of the case 150). When the basket 84 is set in the case 150, the rib 93 has a gap with the inner bottom surface 150c of the case 150 of d (mm) (d is less than the size (maximum diameter) of the small filtration hole. ). Further, a part 931 of the rib 93 serves to position the basket 84 in the case 150 by contacting the inner bottom surface 150 c of the case 150. The rib 93 flows out of the basket 84 from the large filtration hole 87 and the slit hole 89 (see FIG. 10) included in the discharge water filtration surface 91 present on the near side in FIG. When large foreign matter is contained in the water flowing between the inner bottom surface 150 c and the inlet 157 a of the outlet pipe 157, it functions to prevent the foreign matter from flowing into the inlet 157. Next, referring to FIG. 13, in a state where the filter main body 83 is set in the case 150, the ribs 92 protruding from the outer surface side of the basket 84 form gaps between the case inner side surface and the inner bottom surface 150 c and the basket 84. For example, a large filtration hole 87 formed on the back side surface of the basket 84 is defined as a predetermined dimension d (mm (d is equal to or smaller than the size (maximum diameter) of the small filtration hole)). When the water flowing out of the basket 84 flows through the gap between the basket 84 and the inner side surface or the inner bottom surface 150c of the case 150 to the near side and tries to flow into the outflow pipe 157, the flowing water When a relatively large foreign matter is contained therein, it serves to prevent the foreign matter from entering the outflow pipe 157.

  As described above, the ribs 92 and 93 are formed so as to surround the periphery of the reused water filtration surface 90 in which the small filtration holes 86 are formed, and the ribs 92 and 93 are opposed to the inner surface of the case 150 to be recycled. A gap larger than the size of the small filtration hole 86 is not generated around the use water filtration surface 90. As a result, the water that has entered the basket 84 is filtered through the reused water filtration surface 90 in which the small filtration holes 86 are formed, and the water and the ribs 92 and 93 that pass through the reused water filtration surface 90 and the case 150. The water passing through the gap with the inner surface of the gas flows into the outlet pipe 150. Therefore, the water flowing into the outlet pipe 157 does not include foreign matters larger than the small filtration hole 86.

  The size (maximum diameter) of the small filtration hole 86 is made smaller than the inner diameter φ of the throttle channel 77 of the venturi pipe 58 of the gas-liquid mixer 27, so that the water flowing through the venturi pipe 58 is reduced. No foreign substance larger than the inner diameter φ of the throttle channel 77 is present, and the foreign substance is clogged in the throttle channel 77 having a narrowed flow diameter, so that the flow of water flowing through the venturi pipe 58 decreases or stops. There is nothing.

As shown in FIG. 14, since the water flowing out from the drain pipe 156 is filtered through the large filtration hole 87 and the slit hole 89 formed in the basket 84, a large foreign matter flows out through the drain pipe 156. Without drainage holes clogging.
As apparent from FIGS. 8 to 14, the case 150 of the filter unit 15 has a longitudinal shape extending obliquely downward from the front to the rear, and the basket 84 of the filter main body 83 is accommodated therein. . The outlet pipe 157 is attached to the front side of the drain outlet pipe 156, that is, relative to the upper side of the case 150. Accordingly, as shown in FIGS. 9 and 10, the reuse water filtration surface 90 is located on the front side (upper side), and the discharge port filtration surface 91 is located on the rear side (lower side). Therefore, when the water flowing into the basket 84 contains foreign matter, the large foreign matter falls to the rear side (lower side), and water with less foreign matter is filtered through the reused water filtration surface 90. . That is, the filter unit 15 has a configuration in which the washing water and the rinsing water are efficiently filtered.
<Configuration to notify operation failure of operation lid>
Next, a configuration for notifying the user that the mounting is defective when the operation lid 85 of the filter unit 15 is appropriately operated and the filter main body 83 is not correctly mounted on the case 150 will be described.

FIG. 15 is a partial front view of the washing / drying machine 1. A window 100 is formed in the housing 2 on the lower right front side of the washing / drying machine 1. In this embodiment, the window 100 has a rectangular shape with rounded corners, but the window 100 may have any shape. A cover 101 is attached to the window 100 so as to be openable and closable.
FIG. 16 is a partial perspective view of the lower part of the washing / drying machine 1 as viewed obliquely from the front. As shown in FIG. 16, the cover 101 rotates forward about both lower sides thereof as shown in FIG. The window 100 can be displaced from the closed state shown in FIG. 16 to the opened state. When the cover 101 is opened, the cover 101 is opened by applying a forward force by applying a user's finger to the hand-carrying recess 102 formed on the upper side of the cover 101.

  When the cover 101 is opened, the operation lid 85 of the filter unit 15 disposed behind the cover 101 is exposed. The front mounting plate 159 of the case 150 described in FIG. 8 exists around the operation lid 85, and the back of the window 100 is closed by the front mounting plate 159. The configuration of the entire unit 15 cannot be confirmed through the window 100.

  In this embodiment, a movable body 103 is provided between the cover 101 and the operation lid 85. As shown in FIG. 16, when the cover 101 is opened, the movable body 103 rotates forward by its own weight. In a state in which the movable body 103 is rotated forward, the movable body 103 does not hinder the operation of the operation lid 85, and the operation lid 85 fitted to the filter insertion port 162 is loosened by rotating the operation lid 85 counterclockwise. Therefore, the filter body 83 can be maintained, such as removing the foreign matter adhering to the filter body 83, particularly the basket 84, by pulling the filter body 83 forward. After maintenance, the basket 84 can be inserted from the filter insertion port 162, and the operation lid 85 can be turned to the right to attach the filter body 83 to the case 150.

  When the filter main body 83 is attached to the case 150 and the operation lid 85 is correctly rotated, the operation rib 104 of the operation lid 85 is in the horizontal direction. In the state where the operation rib 104 is horizontal, the movable body 103 can be rotated upward as shown in FIG. That is, since the operation rib 104 of the operation lid 85 extends in the horizontal direction, the operation rib 104 does not prevent the movable body 103 from rotating upward, and the movable body 103 can rotate upward.

  Normally, as shown in FIG. 17, it is not necessary to rotate the movable body 103 alone. If the cover 101 is closed from the state shown in FIG. 16, the movable body 103 is pushed upward by the inner surface of the cover 101. Rotate. Then, as shown in the right side partial sectional view of the lower part of the washing / drying machine 1 shown in FIG. 18, the movable body 103 rotated upward does not hinder the closing of the cover 1, and the cover 101 is placed in the housing. It can be set as the closed state which became the front of 2 and the same plane.

However, as shown in FIG. 19, the operation lid 85 is not properly operated, the operation lid 85 is not properly rotated, the seal between the filter insertion opening 162 and the operation lid 85 is incomplete, When there is a risk of leakage from the filter insertion port 162 to the front, the movable body 103 cannot rotate to a predetermined upper position.
In other words, when the operation lid 85 is not properly operated, the operation rib 104 is not positioned in the horizontal direction, and is in an inclined state with respect to the vertical direction or the horizontal direction as shown in FIG. In such a state, the operation rib 104 interferes with the movable body 103, and the movable body 103 cannot be rotated upward to a predetermined position. As a result, as shown in the lower right side partial cross-sectional view of the lower part of the washing / drying machine 1 in FIG. 20, the movable body 103 inhibits the cover 101 from being completely closed. That is, the movable body 103 collides with the inner surface of the cover 101 and the cover 101 cannot be closed.

Since the cover 101 cannot be closed, the user confirms the state of the operation lid 85 and knows that the operation of the operation lid 85 is inappropriate.
As described above, when the operation lid 85 is not properly operated, the cover 101 cannot be closed, and when the user does not correctly operate the operation lid 85 of the filter unit 15, This is informed so that water leakage from the filter unit 51 does not occur.
<Configuration of movable body>
FIG. 21 is a diagram showing a specific configuration of the movable body 103, where A is a plan view, B is a front view, C is a right side view, D is a perspective view seen from diagonally above, and E is seen from diagonally below. It is a perspective view.

  Referring to FIG. 21, movable body 103 is provided with right arm plate 105, left arm plate 106, and right arm plate 105 and left arm plate 106 that extend vertically in the front-rear direction and extends in the lateral direction. And an interference plate 107 connecting the right arm plate 105 and the left arm plate 106. An engagement support shaft 108 protruding in the direction of the left arm plate 106 (inward) is provided below the right arm plate 105 on the back side. Further, an engagement support shaft 109 protruding in the direction of the right arm plate 105 (inward) is provided below the left arm plate 106 on the back side. The engagement support shafts 108 and 109 are on the same straight line, and the engagement support shafts 108 and 109 are fitted in the engagement holes 14 (see FIG. 8) provided in the front mounting plate 159 of the case 150 of the filter unit 15. Accordingly, the movable body 103 is mounted so as to be rotatable up and down.

  The right arm plate 105 has a length in the front-rear direction that is longer than the length in the front-rear direction of the left arm 106, and the tip projects forward from the left arm plate 106. For this reason, the interference plate 107 has a shape in which the front end side extends obliquely from right to left in plan view, and the right side width is wider than the left side. Further, the rear end side of the interference plate 107 is curved in a circular arc shape toward the front. By making the length of the right arm plate 105 longer than that of the left arm plate 106, the movable body 103 can contact only the front end portion of the right arm plate 105 with the inner surface of the cover 101 (see FIG. 16). By making the contact point between the inner surface of the cover 101 and the movable body 103 only at the tip of the right arm plate 105, the movable body 103 that rotates in conjunction with the closing motion of the cover 101 can be rotated more smoothly. There are advantages.

  When the operation lid 85 is not properly operated, the interference plate 107 interferes (collises) with the operation rib 104 of the operation lid 85 so that the movable body 103 does not further rotate upward. In order for the interference plate 107 not to be easily bent or deformed even if the interference plate 107 collides with the operation rib 104, there is an interference between the lateral end portions of the interference plate 107 and the joint between the right arm plate 105 and the left arm plate 106. Reinforcing bars 110 extending in the direction orthogonal to the surface directions of the plate 107, the right arm plate 105, and the left arm plate 106 are provided.

When the movable body 103 is rotated upward, the interference plate 107 is adjacent to the operation rib 104 of the operation lid 85 in substantially parallel to prevent the operation rib 104 from moving. Therefore, the interference plate 107 also functions to restrict the operation lid 85 from rotating so as to be loosened by vibration or the like.
The movable body 103 is rotatable about the engagement support shafts 108 and 109. However, as described above, when the cover 101 is opened, the movable body 103 is moved by its own weight from the operation lid 85. A center-of-gravity adjusting portion 111 for adjusting the center of gravity of the movable body 103 is provided on the outer surface of the right arm plate 105 and the outer surface of the left arm plate 106 so as to rotate forward so as to be separated.

Further, when the movable body 103 rotates forward about the engagement support shafts 108 and 109, the stopper protrusion 112 is provided near the engagement support shaft 108 so that the rotation position of the movable body 103 stops at a predetermined angular position. Is protruding. Referring to FIG. 16, when the movable body 103 rotates forward, the stopper protrusion 112 hits the front mounting plate 159 when the movable body 103 rotates to a predetermined angular position. It functions to regulate the rotation angle position of 103. Thereby, the movable body 103 can be stopped at a predetermined angular position, and it can be prevented from rotating until the movable body 103 hits the cover 101. If the movable body 103 comes into contact with the cover 101 and stops, the movable body 103 may act like a support member when the cover 101 is closed, which may cause a problem that it is difficult to close the cover 101. .
<Configuration of control circuit>
FIG. 22 is a block diagram for explaining the configuration of the electrical control circuit of the washing / drying machine 1. The block diagram of FIG. 22 shows only the elements necessary when the washing / drying machine 1 executes the drying process.

The control unit 120 is a control center of the washing / drying machine 1 and includes a microcomputer or the like, and is included in, for example, the electrical component 12 (see FIG. 1).
The control unit 120 receives detection temperatures of the drum outlet temperature sensor 121, the dehumidified water temperature sensor 122, and the substrate temperature sensor 123.
As described with reference to FIG. 3, the drum outlet temperature sensor 121 is provided in front of the blower 21 in the drying air passage 20 in the air flow direction. The drum outlet temperature sensor 121 flows out of the washing tub 3 through the drying air passage 20 and measures the air temperature after heat exchange with water in the drying air passage 20.

As described with reference to FIG. 3, the dehumidified water temperature sensor 122 is disposed at the lower end portion of the drying air passage 20 connected to the lower back of the outer tub 4. The dehumidified water temperature sensor 122 is a sensor for detecting the temperature of water after heat exchange with the air flowing out from the washing tub in the drying air passage 20.
As described with reference to FIG. 1, the substrate temperature sensor 123 is a temperature sensor provided on a circuit board included in the electrical component 12 disposed in the lower front portion of the housing 2. The substrate temperature sensor 123 is provided to detect the ambient temperature (proportional to room temperature, temperature of about room temperature + 10 ° C.) where the washing / drying machine 1 is disposed.

A drying heater A 124, a drying heater B 125, a blower motor 126, a drying pump 23, a water supply valve 17, a second drain valve 48, and a DD motor 6 are connected to the control unit 120. The drive of each of these connected components is controlled by the control unit 121.
As described with reference to FIG. 1, the drying heater A 124 and the drying heater B 125 are provided on the downstream side of the blower 21 in the drying air passage 20 and heat the circulating air. The drying heater A124 and the drying heater B125 can be constituted by, for example, semiconductor heaters, and the heat generation capacities of the two heaters are equal to each other in this embodiment. Whether only one of the drying heaters 124 or 125 is energized or whether both of the drying heaters 124 and 125 are energized is controlled according to the progress of the drying process, as will be described later.

The blower motor 126 is driven to circulate the air through the drying air path 20 in the drying process. The blower 21 is rotated by the blower motor 126.
The drying pump 23 is driven to circulate the water in the tank 11 through the drying air passage 20 in the drying process. The water pumped out of the tank 11 by the drying pump 23 is supplied to the drying air passage 20 as heat exchange, cooling, and washing water, as described above, and the supplied water travels down the drying air passage 20. The water is circulated from the drain port 42 of the outer tub 4 to the tank 11 through the water channel 43, the first drain valves 44, 45, the filter unit 15, the water storage channel 62 and the water storage valve 63. Therefore, the capacity of the tank 11 (the amount of water stored in the tank 11) may not be a capacity necessary for storing the total amount of water supplied to the drying air passage 20 in the drying process. The tank 11 has a smaller capacity than that, and the water in the tank 11 is circulated to supply water in a drying process while saving water.

The water supply valve 17 is controlled to supply cooler tap water as heat exchange water instead of circulating the recycled water in the tank 11 in the latter stage of the drying process.
The second drain valve 48 is controlled to discharge water from the tank 11 at the end of the drying process. The DD motor 6 is controlled to rotate the drum 5 of the washing tub 3.
<Control operation of drying process>
FIG. 23 is a timing chart for explaining the contents of operation control in the drying process of the washing / drying machine 1. With reference to the timing chart of FIG. 23, the control operation of the drying process of the washing / drying machine 1 will be described.

In the washing / drying machine 1, when the drying process is started, the drying heater A124 is energized, and for example, the drying heater B125 is energized with a delay of about 30 seconds. The reason why the two drying heaters 124 and 125 are not energized at the same time is to suppress the inrush current.
Further, the drying pump 23 is operated strongly. The reason why the drying pump 23 is operated for a predetermined period of time simultaneously with the start of the drying process is to confirm that water has accumulated in the tank 11.

Furthermore, the blower motor 126 is operated weakly at the start of the drying process. The second drain valve 48 is closed so that water in the tank 11 circulated by the drying pump 23 is not drained from the water channel 49 to the external drain hose 50 (see FIG. 4).
With the start of the drying operation, the drying heater A124, the drying heater B125, the drying pump 68, and the blower motor 126 are driven as described above, so that the air in the washing tub 3 flows slowly through the drying air passage 20. Then, it is heated by the drying heater A124 and the drying heater B125 and is circulated into the washing water tank 3. Since the circulated air is heated by the two energized drying heaters A 124 and B 125, the drum outlet temperature T _DO detected by the drum outlet temperature sensor 124 draws a rising curve with a relatively large gradient.

On the other hand, the dehumidified water temperature T _W detected by the dehumidified water temperature sensor 122 is because the drying pump 23 is operated strongly and a large amount of water is dropped in the drying air passage 20, and the washing tub 3 The temperature of the air flowing out from the air is not sufficiently heated, and it hardly increases.
This control state is continued for about 25 minutes, for example, at the beginning of drying, and when about 25 minutes have elapsed after the start of the drying process, the blower motor 126 is switched from the weak operation to the medium operation and further to the strong operation, so that the drying air passage 20 The amount of air circulating inside is increased.

Then, during the period from 25 minutes to 70 minutes after the start of operation, as the initial stage of drying, both the drying heater A 124 and the drying heater B 125 are continuously energized, the blower motor 126 is strongly operated, and the driving of the drying pump 23 is stopped. When the driving of the drying pump 23 is stopped, the circulated air is not dehumidified in the drying air passage 20, and the air is heated by the drying heater A124 and the drying heater B125, and the temperature of the circulating air, that is, The drum outlet temperature T _DO detected by the drum outlet temperature sensor 121 increases.

On the other hand, since the drying pump 23 is stopped, the dehumidified water temperature sensor 122 mainly detects not the temperature of the dehumidified water but the water temperature in the high-temperature and high-humidity air flowing out from the washing tub 3. Dehumidification water temperature T _W is detected, since the air is heated, it rises rapidly.
Next, during the period from 70 minutes to 130 minutes after the start of the drying process, the following control is performed as the middle drying stage.

That is, both the drying heater A 124 and the drying heater B 125 are continuously energized, and the blower motor 126 is switched to the middle operation so that the air volume of the circulating air is somewhat reduced and heat exchange is performed in the drying air path 20. The pump 23 is operated weakly and the water in the tank 11 is circulated. By water drying pump 23 tank 11 to have been operated drying air duct 20 is supplied as dehumidification water, the dehumidification water temperature T _W detected by the dehumidification water temperature sensor 122 drops suddenly, then gradually increase To do. This is because water and air exchange heat in the drying air passage 20, so that water takes away the amount of heat of the circulating air and the temperature of the water rises.

In addition, the drum outlet temperature T _DO detected by the drum outlet temperature sensor 121 is reduced in temperature in the first half of the drying because the circulating air exchanges heat. As the temperature rises, the temperature of the circulating air also rises gradually.
The middle drying phase ends, for example, 130 minutes after the start of the drying process, and then the operation is switched to the latter drying operation. The operation in the latter drying stage is different from the operation in the middle drying stage in that the drying pump 23 is switched to the strong operation and the blower motor 126 is switched to the weak operation. The drying pump 23 is operated strength, the amount of dehumidification water flowing through the drying air duct 20 is increased, when it becomes dry late, the dehumidification water temperature T _W detected by the dehumidification water temperature sensor 122 is once Although dehumidified, dehumidified water continues to exchange heat with the circulating air, and its temperature gradually increases. On the other hand, since the blower motor 126 is switched to a weak operation, the air circulating through the drying air passage 20 is reduced in air volume and is sufficiently heated by the drying heater A124 and the drying heater B125. However, the drum outlet temperature T _DO detected by the drum outlet temperature sensor 121 gradually increases from a substantially flat level.

Furthermore, in this embodiment, during each period of the middle drying period and the latter drying period, the energization of the drying heater A 124, the drying heater B 125, and the blower motor 126 is interrupted for a certain period (for example, 2 to 3 minutes). In the drying process, one of the factors affecting the drying performance is the temperature of the air circulating in the drying air passage 20, and it is desirable to maintain the drum outlet temperature _TDO at a predetermined high temperature. If the energization of the drying heater A124 and the drying heater B125 is interrupted during the drying operation, the circulating air temperature (drum outlet temperature T _DO ) decreases. However, the blower motor 126 is synchronized with the energization interruption of the drying heater A124 and the drying heater B125. When stopped, the air circulation stops, and the temperature of the air is maintained substantially without decreasing. In this embodiment, in the middle drying stage and the latter drying stage, for example, by incorporating the control of stopping the drying heater A 124, the drying heater B 125, and the blower motor 126 for several minutes in synchronization with each other, the drying performance is hardly deteriorated. Realizes energy-saving operation.

Next, how to detect the end time of the drying process will be described. Since the drying time varies depending on the amount and type of clothes to be dried, the end is not controlled by the time, and is automatically detected by temperature-based control as described below.
In FIG. 23, a temperature curve T _DO + T _W indicated by a solid line above is a total value of the drum outlet temperature T _DO and the dehumidified water temperature T _W. In this embodiment, the value of T _DO + T _W is stored in the memory in the control unit 120 10 minutes after the start of the drying process. This temperature is, for example, T ₁ . Then, for example, after 120 minutes have elapsed since the start of the drying process, T _DO + T _W is monitored and the temperature is set to T ₂ . When the temperature difference T _X = T ₂ −T ₁ between T ₂ and T ₁ reaches a predetermined temperature, the end of the drying operation is detected.

Note that at room temperature T _B of the substrate temperature to be detected at a substrate temperature sensor 123 is substantially constant during the drying process, since the washing and drying machine 1 is operating, gradually rises by the temperature rise caused by the operation.
In washing and drying machine 1 according to this embodiment, the temperature of the heated drying heater A124 and the drying heater B125 (which is heat-exchanges) the circulating air is detected by the drum outlet temperature sensor 121 as the drum outlet temperature T _DO, also, The temperature of the circulating air is indirectly detected by the dehumidified water temperature sensor 122 as the dehumidified water temperature T _W for heat exchange, and these two temperatures T _DO and T _W rise as the drying process proceeds. For this reason, the total value T ₂ of the drum outlet temperature T _DO and the dehumidified water temperature T _W has a large increase with the lapse of the drying time, and by detecting how much the total value T ₂ has increased, It is possible to determine the completion of drying with relatively high accuracy. For reference, conventionally, the end of the drying operation is dependent only on the temperature detected by the drum outlet temperature sensor 121.

When the end time of the drying process is detected, the drying heater B125 is once turned off in FIG. 23, but this turning off may not be performed.
After the completion of drying is detected based on the temperature difference T _X = T ₂ −T ₁ , when a certain period of time, for example, 5 minutes has elapsed, the energization of the drying heater A 124 is first stopped, and then a few minutes later. The energization of the drying heater B125 is stopped. At the same time as the energization of the drying heater B125 is stopped, the drying pump 23 is stopped and the second drain valve 48 is switched from closed to open. As a result, the water in the tank 11 supplied for heat exchange is discharged outside the machine through the water channel 49 and the external drainage hose 50. If the operation of the drying pump 68 is continued for a short time after the second drain valve 48 is opened, all the water in the tank 11 can be drained.

  After the energization of the drying heater A124 and the drying heater B125 is stopped, the blower motor 126 is switched to a strong operation, the amount of circulating air in the drying air passage 20 is increased, and a cool-down process is performed. The cool-down process is performed for a predetermined time (for example, about 10 minutes). The cool-down process is performed in order to lower the temperature of the dried clothes stored in the washing tub 3. During the cool-down process, it is preferable that the water supply valve 17 is controlled so that tap water is supplied from the water channel 39 into the drying air channel 20. This is because the air circulated in the cool-down process is heat-exchanged with tap water, and the temperature can be quickly lowered.

FIG. 24 is a control flow diagram for executing the timing chart shown in FIG. 23 described above, and this control flow is executed by the control unit 20 shown in FIG.
With reference to FIG. 24, the control operation in the drying process performed by the control unit 120 will be described.
When the operation in the drying process is started, the controller 120 energizes the DD motor 6, the drying pump 68, the blower motor 126, the drying heater A124, and the drying heater B125 in this order (step S1). Then, for example, it is determined whether or not it is the first drying time until 25 minutes elapses after the operation is started (step S2). During the first drying, both the two drying heaters A124 and drying heater B125 are energized and heated. Is operated strongly and the drying pump 23 is also operated strongly, and a large amount of cooling water is circulated. On the other hand, the blower motor 126 is operated weakly and the circulating air volume is reduced (step S3).

  In the initial stage of drying between 25 minutes and 70 minutes after the start of the drying operation (YES in step S4), the two drying heaters A124 and drying heater B125 are energized, the drying pump 23 is stopped, and the tank 11 is turned off. Water circulation is stopped and the blower motor 126 is operated strongly (step S5). Thereby, the air in the washing tub 3 is heated rapidly and the air temperature rises in a short time. This control is efficient for drying and leads to a reduction in drying time.

  Next, after the start of the drying operation, it is determined whether or not it is in the middle drying period of 70 to 130 minutes (step S6). In the case of the intermediate drying period, whether or not 120 minutes have elapsed from the start of the drying operation and before 123 minutes have elapsed. A determination is made (step S7). Immediately after entering the middle of the drying operation, the control proceeds with steps S6 → S7 → S9, the two drying heaters A124 and B125 are energized, the heaters are operated strongly, and the drying pump 23 is operated weakly to recycle the recycled water. The circulation is reduced, and the blower motor 126 is operated in the middle so that the air volume of the circulating air is moderate (step S9). Thereby, the circulating air can be heated quickly, the air temperature in the washing tub 3 can be quickly raised, and the drying of the clothes can be promoted to contribute to shortening the drying operation time.

  If YES is determined in step S7 during the middle of drying, energization of the two drying heaters A124 and B125 is interrupted, and the operation of the blower motor 126 is also interrupted synchronously (step S8). . As a result, it is possible to realize energy saving by interrupting the energization of the heaters 124 and 125 and the blower motor 126 while proceeding with the drying while hardly reducing the air temperature in the drying air passage 20.

  Next, the control proceeds to step S10, and when it is determined that the cool-down process has been performed, the energization to the two drying heaters A124 and B125 is stopped, the operation of the drying pump 23 is stopped, and the water supply Tap water is supplied to the drying air passage 20 as dehumidified water by the valve 17. Then, the blower motor 126 is operated strongly to increase the circulating air volume, and the heated air in the washing tub 3 is quickly circulated and cooled, and accordingly the clothing temperature in the washing tub 3 is lowered (step S11).

When the cool-down process is continued for a predetermined time and the end is determined (step S12), the drying operation ends.
If it is determined in step S10 that the process is not a cool-down process, the two drying heaters A124 and B125 are energized, and the drying pump 23 is operated strongly so that a large amount of water is supplied to the drying air path. 20 is supplied. Further, the blower motor 126 is switched to a weak operation, and the amount of circulating air is reduced (step S13). When a large amount of water is supplied to the drying air passage 20 by the drying pump 23, foreign matters such as lint adhering to the inner surface of the drying air passage 20 are washed, and purification in the drying air passage is performed at the end of the drying process. It can be carried out.

  FIG. 25 is a timing chart showing a modified example of the drying control in the drying process. In the timing chart of FIG. 25, the air temperature after being heated by the drying heater A124 and the drying heater B125 is indicated by a solid line in the upper portion as the heating portion outlet temperature. Below that, the energized state of the heater A124 and the heater B125 is shown, and below that the drive state of the blower motor 126 is shown.

Note that the temperature of the outlet of the heating unit is only shown by temperature changes by the drying heater A124 and the drying heater B125, and the temperature change due to heat exchange of the circulated air by the cooling water is omitted.
When the drying operation is started, the two drying heaters A 124 and B 125 are energized with a time difference, and the blower motor 126 is operated weakly, the outlet temperature of the heating unit rapidly increases. When the blower motor 126 is switched from the weak operation to the strong operation in the initial stage of drying and the air volume of the air circulated through the drying air passage 20 increases, the heating unit outlet temperature once decreases, but gradually increases as the operation time elapses. I will do it. In the timing chart shown in FIG. 25, when moving from the middle drying stage to the latter drying stage, the energization of one drying heater B125 of the two drying heaters is interrupted for a predetermined time, for example, several minutes to 10 minutes, and accordingly. The blower motor 126 is operated weakly. When the energization of the drying heater B125 is interrupted and the operation of the blower motor 126 is weakly synchronized, as shown in the figure, the air temperature at the outlet of the heating section hardly changes and the operation in the latter drying stage can be continued. .

  As a reference, the case where only the drying heater B125 is energized and the blower motor 126 continues to be operated strongly is shown by a broken line. When the energization of only the drying heater B125 is temporarily interrupted, the heating unit outlet temperature (drying air temperature) greatly decreases. When the air temperature is greatly lowered, the drying efficiency is lowered and the time required for drying is lengthened. As in this embodiment, if the blower motor 126 is switched to weak in synchronization with weakening the drying heater, the amount of energization can be reduced and energy saving operation can be realized without lowering the air temperature for drying. Can do.

FIG. 26 is a further modification of the control of the drying process. In FIG. 26, the heating unit outlet temperature (the temperature of the circulating air supplied to the washing tub 3 after passing through the drying heater A 124 and the drying heater B 125) is indicated by a solid line at the top, and the drying temperature is below that. gradually rising the substrate temperature (room temperature) T _B are shown in the process. Usually, the substrate temperature is proportional to room temperature and is about room temperature + 10 °. Substrate temperature T _B gradually rises with the drying operation time.

  During the drying operation, it is necessary to dehumidify and cool the air circulated through the drying air passage 20. For this purpose, the drying pump 23 is driven and the water in the tank 11 is circulated and supplied. However, as described above, when the drying is started, there is an operation for checking whether or not the water is accumulated in the tank 11. At the same time, the drying pump 23 is strongly operated, and in the initial stage of drying, the driving of the drying pump 23 is stopped in order to give priority to the rise of the heating unit outlet temperature (circulation air temperature). In order to dehumidify the drying air that is generated, the drying pump 23 is operated weakly. In the late stage of drying, the drying pump 23 is operated strongly, increasing the amount of heat exchange with the air and increasing the drying efficiency.

In the control of FIG. 26, in dry late, the substrate temperature T _B is a predetermined temperature, for example, when it is above 45 ℃, the water supplied to dehumidify the dry air is circulated drying air passage, tank Instead of 11 water, tap water is supplied. Therefore, when the substrate temperature T _B is detecting a temperature higher than the temperature specified in advance, the driving of the drying pump 23 is stopped, it switches the water supply valve 17 to supply tap water into the drying air duct 20. By doing so, the temperature of the air circulated through the drying air passage 20 is somewhat lowered, but the dehumidifying efficiency of the circulating air is improved, and as a result, the drying time can be shortened.

  The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

1 is a right side view of a longitudinal section of a washing / drying machine 1 according to an embodiment of the present invention. It is the perspective view which looked at the washing-drying machine 1 from diagonally forward, and is a figure which shows the internal structure from which the housing | casing 2 was removed. It is the perspective view which looked at the washing-drying machine 1 from diagonally backward, and is a figure which shows the internal structure from which the housing | casing 2 was removed. It is a figure which shows the structure centering on the water channel and air path of the washing-drying machine 1 schematically.

In the rear view of the washing and drying machine 1, a circulation water channel including a first circulation water channel 55, a circulation pump 25, a second circulation water channel 57, a U-turn unit 26, a gas-liquid mixer 27 (Venturi tube 58), and a third circulation water channel 59. It is a figure for demonstrating a structure. FIG. 4 is a perspective view showing specific configurations of a U-turn part 26 and a gas-liquid mixer 27.

3 is a longitudinal sectional view showing the internal structure of the gas-liquid mixer 27. FIG. 3 is a perspective view of the filter unit 15. FIG. 4 is a perspective view showing a configuration of a filter body 85. FIG. FIG. 5 is a perspective view showing a configuration of a basket 84 alone with an operation lid 85 removed from a filter body 83. 3 is a plan view of the filter unit 15. FIG. It is a longitudinal cross-sectional view of the filter unit 15 along AA of FIG. It is a cross-sectional view of the filter unit 15 along BB in FIG. It is a cross-sectional view of the filter unit 15 along CC in FIG. 2 is a partial front view of the washing / drying machine 1. FIG. It is the fragmentary perspective view which looked at the lower part of the washing-drying machine 1 from diagonally forward. It is the fragmentary perspective view which looked at the lower part of the washing-drying machine 1 from diagonally forward. 2 is a partial right side sectional view of a lower part of the washing / drying machine 1. FIG. It is the fragmentary perspective view which looked at the lower part of the washing-drying machine 1 from diagonally forward. 4 is a right side partial longitudinal sectional view of a lower part of the washing / drying machine 1. FIG. It is a figure which shows the specific structure of the movable body 103, A is a top view, B is a front view, C is a right view, D is the perspective view seen from diagonally upward, E is the perspective view seen from diagonally downward is there. 3 is a block diagram for explaining a configuration of an electrical control circuit of the washing / drying machine 1. FIG. It is a timing chart for demonstrating the content of the operation control in the drying process of the washing dryer. FIG. 24 is a control flowchart for executing the timing chart shown in FIG. 23.

It is a timing chart which shows the modification of the drying control in a drying process. It is a timing chart which shows the other modification of the drying control in a drying process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washing and drying machine 3 Washing water tank 4 Outer tank 5 Drum 11 Tank 15 Filter unit 17 Water supply valve 19 Ozone generator 20 Drying air path 21 Blower 23 Drying pump 25 Circulation pump 26 U-turn part 27 Gas-liquid mixer 48 2nd drainage Valve 57 Second circulating water path 58 Venturi pipe 59 Third circulating water path 77 Restriction part flow path 81 Check valve 83 Filter body 85 Operation lid 86 Small filtration hole 90 Reuse water filtration surface 101 Cover 103 Movable body 111 Center of gravity adjustment section 112 Stopper Protrusion 120 Control unit 121 Drum outlet temperature sensor 122 Dehumidifying water temperature sensor 123 Substrate temperature sensor 120, 125 Drying heater 126 Blower motor 150 Case

Claims (11)

A washing tank,
A circulating water channel disposed outside the washing tub and having both ends connected to the washing tub;
A pump that is provided in the circulation channel, pumps out water in the washing tub from one end of the circulation channel, and discharges the pumped water from the other end of the circulation channel into the washing tub;
In the circulation channel, as seen in the direction of water flow, provided on the upstream side of the pump, a filter for filtering out the pumped water and capturing foreign matter,
A purifying air generator for generating purifying air;
A gas-liquid mixer provided on the downstream side of the pump in the circulating water channel as viewed in the direction of water flow, for mixing the purification air generated by the purification air generator into the water flowing through the circulating water channel; With
The gas-liquid mixer includes a venturi pipe having a throttle passage that allows water to pass through, and an air supply passage that is joined to the throttle passage of the venturi pipe and supplies purification air to the throttle passage. Including
The inner diameter of the flow path of the throttle portion of the venturi pipe is made larger than the filter hole of the filter, and the venturi pipe has water from the top to the bottom at a position higher than the water level stored in the washing tub. Arranged to pass through,
The circulation channel guides the water discharged from the pump to the upper side of the venturi pipe, allows the water to flow from the upper side to the lower side, and passes the venturi pipe from the upper side to the lower side. A washing machine, characterized in that it comprises a waterway to return to. A washing tank,
A circulating water channel disposed outside the washing tub and having both ends connected to the washing tub;
A pump that is provided in the circulation channel, pumps out water in the washing tub from one end of the circulation channel, and discharges the pumped water from the other end of the circulation channel into the washing tub;
A purifying air generator for generating purifying air;
A gas-liquid mixer provided on the downstream side of the pump in the circulating water channel as viewed in the direction of water flow, for mixing the purification air generated by the purification air generator into the water flowing through the circulating water channel; With
The gas-liquid mixer includes a venturi pipe having a throttle passage that allows water to pass through, and an air supply passage that is joined to the throttle passage of the venturi pipe and supplies purification air to the throttle passage. Including
The venturi tube is arranged so that water passes from top to bottom at a position higher than the water level stored in the washing tub,
The circulating water channel includes a water channel that guides water discharged from the pump to the upper side of the venturi pipe and allows the water to flow from top to bottom and to pass the venturi pipe from top to bottom. ,Washing machine. A washing tank,
A circulating water channel disposed outside the washing tub and having both ends connected to the washing tub;
A pump that is provided in the circulation channel, pumps out water in the washing tub from one end of the circulation channel, and discharges the pumped water from the other end of the circulation channel into the washing tub;
In the circulation channel, as seen in the direction of water flow, provided on the upstream side of the pump, a filter for filtering the water to be pumped and capturing garbage,
A purifying air generator for generating purifying air;
A gas-liquid mixer provided on the downstream side of the pump in the circulating water channel as viewed in the direction of water flow, for mixing the purification air generated by the purification air generator into the water flowing through the circulating water channel; With
The gas-liquid mixer includes a venturi pipe having a throttle passage that allows water to pass through, and an air supply passage that is joined to the throttle passage of the venturi pipe and supplies purification air to the throttle passage. Including
The washing machine according to claim 1, wherein an inner diameter of the throttle channel of the venturi tube is larger than a filtering hole of the filter. A washing tank,
A circulating water channel disposed outside the washing tub and having both ends connected to the washing tub;
A pump that is provided in the circulation channel, pumps out water in the washing tub from one end of the circulation channel, and discharges the pumped water from the other end of the circulation channel into the washing tub;
In the circulation channel, as seen in the direction of water flow, provided on the upstream side of the pump, a filter for filtering the water to be pumped and capturing garbage,
A purifying air generator for generating purifying air;
A gas-liquid mixer provided on the downstream side of the pump in the circulating water channel as viewed in the direction of water flow, for mixing the purification air generated by the purification air generator into the water flowing through the circulating water channel; With
The gas-liquid mixer includes a venturi pipe having a throttle passage that allows water to pass through, and an air supply passage that is joined to the throttle passage of the venturi pipe and supplies purification air to the throttle passage. Including
The washing machine according to claim 1, wherein the circulation channel includes a channel for returning the water mixed with the purification air by the gas-liquid mixer from the lower side of the washing tub to the washing tub. A washing tank,
A circulating water channel disposed outside the washing tub and having both ends connected to the washing tub;
A pump that is provided in the circulation channel, pumps out water in the washing tub from one end of the circulation channel, and discharges the pumped water from the other end of the circulation channel into the washing tub;
A purifying air generator for generating purifying air;
A gas-liquid mixer provided on the downstream side of the pump in the circulating water channel as viewed in the direction of water flow, for mixing the purification air generated by the purification air generator into the water flowing through the circulating water channel; With
The gas-liquid mixer includes a venturi pipe having a throttle passage that allows water to pass through, and an air supply passage that is joined to the throttle passage of the venturi pipe and supplies purification air to the throttle passage. A washing machine characterized by comprising.   In the gas-liquid mixer, steam at the time of drying flows into the air supply path joined to the throttle portion flow path of the venturi pipe and flows backward in the direction opposite to the air supply direction through the venturi pipe. The washing machine according to any one of claims 1 to 5, wherein a check valve for blocking is provided. The gas-liquid mixer is fixed to the outer surface of the washing tub,
The protrusion for protecting the gas-liquid mixer which protrudes from the outer surface of the said washing tub is formed in the vicinity of the said gas-liquid mixer, The one in any one of Claims 1-6 characterized by the above-mentioned. Washing machine. The filter is
Case and
Including a filtration member housed in the case and removable from the case,
In the case, an inflow port for allowing water from the washing tub to flow into the case,
An outlet for discharging the water in the case as recycled water;
A drainage outlet for discharging the water in the case to the outside of the machine is formed,
The filtration member includes a reuse water filtration surface in which relatively small filtration holes are formed, and an exhaust water filtration surface in which relatively large filtration holes are formed,
5. The water flowing into the case from the inflow port can be discharged from the outflow port only through the reused water filtration surface. 6. The washing machine described. The outlet is formed relatively above the case;
The drain port is formed relatively below the case,
9. The washing machine according to claim 8, wherein the filtering member has the reused water filtering surface positioned above the outlet filtering surface in the case.   The case includes a long shape portion, and is arranged so that the long shape portion is inclined with respect to the horizontal direction, and an outlet is formed at a relatively upper position of the long shape portion, and at a relatively lower position. The washing machine according to claim 9, wherein a drainage port is formed.   In order to prevent water that has not passed through the reused water filtration surface from moving toward the outlet, the filtration member protrudes outward from the periphery of the reused water filtration surface, and the filtration member and the inner wall of the case The washing machine according to any one of claims 8 to 11, further comprising a rib that narrows the gap to a predetermined dimension or less.

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