JP2010035667A - Filter device and washing machine equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter device configured to announce the operational malfunction of a cap without adversely affecting the yield in manufacturing a lid; and a washing machine equipped with the same. <P>SOLUTION: When the cap 85 is turned clockwise with a filter body 83 inserted into a casing 150 and with a control knob 106 in the upright state, fitting libs 107 and 107 of the casing 150 are fitted into fitting grooves 108 and 108 of the cap 85, and the fitting libs 107 and 107 finally abut on the terminal ends of the fitting grooves 108 and 108 to limit the turning of the cap 85. As a result, the longitudinal direction of the control knob 106 of the cap 85 is approximately horizontal. At this position, the front surface of the cap 85 is parallel to the rear surface of the lid 101 in the closed state. When the control knob 106 is not completely closed, a part of the control knob 106 sticks out of a window 100 and the lid abuts on the control knob 106, and therefore, the lid 101 is not allowed to be closed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a washing machine and a filter device applicable to the washing machine.

In general, a washing machine is provided with a filter device for catching foreign matter in water when draining water used for washing. For example, in the filter device disclosed in Patent Document 1, when a cap is not properly mounted, a convex portion or a hook provided on the back surface of the lid that opens and closes the cap mounting opening contacts the cap, and the front opening The part cannot be closed.
Japanese Patent No. 3686980

  In the filter device disclosed in Patent Document 1, a protrusion or hook must be provided on the back surface of the lid, and the protrusion or hook is formed integrally with the lid, for example, by resin molding. For this reason, “sink” is likely to occur on the surface of the lid body provided with a protrusion or a hook on the back surface due to the resin flowing toward the protrusion or the hook during molding. Since the lid that causes sink marks has a poor appearance as a product, it cannot be used, and there is a problem that the yield of lid manufacturing is poor.

  Then, an object of this invention is to provide the filter apparatus which has the structure which alert | reports the operation defect of a cap which does not have a bad influence on the yield of lid manufacturing, and a washing machine provided with the same.

The invention according to the first filter device includes a filtration member for capturing foreign matter in the fluid when the fluid passes through;
A case having an inflow port through which a fluid flows in, an outflow port through which the fluid flows out, and a mounting port that allows the filtering member to be taken in and out;
An openable / closable lid that covers the front of the mounting opening of the case;
A cap that is provided in the filtration member and that is rotated to seal the space between the attachment port and the filtration member when the filtration member is received and set in the case from the attachment port. ,
The operation knob having a predetermined width and extending in the circumferential direction is erected on the front surface of the cap, and does not prevent the lid from being closed in an appropriate rotation operation state of the operation knob, and in an inappropriate rotation operation state. The lid is in contact with an operation knob to inhibit closing.

The invention relating to the second filter device includes a filtration member for capturing foreign matter in the fluid when the fluid passes through;
A case having an inflow port through which a fluid flows in, an outflow port through which the fluid flows out, and a mounting port that allows the filtering member to be taken in and out;
A lid that can be opened and closed to cover the window in front of the mounting opening of the case;
A cap that is provided in the filtration member and that is rotated to seal the space between the attachment port and the filtration member when the filtration member is received and set in the case from the attachment port. ,
The operation knob having a predetermined width and extending in the circumferential direction is erected on the front face of the cap, and the front face of the operation knob and the lid closed in an appropriate rotational operation state in which the longitudinal direction of the operation knob is substantially horizontal. When the lid is closed when the back of the body is substantially parallel and does not prevent the lid from being closed, and a part of the operation knob protrudes forward from the window in an improper rotational operation state that is substantially in the vertical direction. Further, the lid is in contact with the protruding operation knob to inhibit the closing.

The invention relating to the third filter device includes a filtration member for capturing foreign matter in the fluid when the fluid passes through;
A case having an inflow port through which a fluid flows in, an outflow port through which the fluid flows out, and a mounting port that allows the filtering member to be taken in and out;
A lid that can be opened and closed to cover the window in front of the mounting opening of the case;
A cap that is provided in the filtration member and that is rotated to seal the space between the attachment port and the filtration member when the filtration member is received and set in the case from the attachment port. ,
The operation knob having a predetermined width and extending in the circumferential direction is erected on the front surface of the cap and is arranged so that a rotation axis of the cap has an acute angle with respect to the rear surface of the lid body. In an appropriate rotational operation state in which the longitudinal direction is substantially horizontal, it does not prevent the lid from closing, and in an inappropriate rotational operation state in which the longitudinal direction is substantially vertical, a part of the operation knob protrudes forward from the window. When closing the lid body, the lid body abuts on the protruding operation knob to inhibit the closure.

  In the invention according to the fourth filter device, in the first to third inventions, a limiting member for limiting a rotation range when the cap is rotated is provided, and in a state where the rotation is limited to the limiting member, The lid is not obstructed to close the lid.

  The invention relating to the fifth washing machine is characterized in that the filter device of the first to fourth inventions is provided for filtering water used for washing.

  ADVANTAGE OF THE INVENTION This invention can provide the filter apparatus which has the structure which alert | reports the operation defect of a cap which does not have a bad influence on the yield of lid manufacturing, and a washing machine provided with the same.

Hereinafter, a configuration of a so-called oblique drum type washing and drying machine will be described in detail as an embodiment of the present invention with reference to the drawings.
<Outline of configuration and operation of washing and drying machine>
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.

  In order to store the used water (recycled water) below the washing tub 3, a tank 11 having an inner volume of about 8.5 liters is provided, and water used for rinsing is stored as described later. In the drying process, water is utilized as heat exchange water and washing water such as lint flowing in the circulation air passage.

  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.

  Further, a blower 21 driven in a drying process, which will be described later, and a drying heater A124 and a drying heater B125 for heating the air circulated into the washing tub 3 by the blower 21 are disposed above the housing 2. Yes.

  FIG. 2 is a perspective view of the washing / drying machine 1 as viewed obliquely from the front, and shows the internal structure with the housing 2 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, the washing tub 3 is supported by an elastic support member 14 including a coil spring and a damper, and a filter unit 15 is arranged on the front right side of the tank 11 arranged below the washing tub 3. 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. In the gas-liquid mixer 27 interposed in the middle of the circulation channel, the ozone generated by the ozone generator 19 is mixed into the water flowing from the top to the 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 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 washer / dryer 1. Next, referring to FIG. 4 schematically showing the configuration of the washer / dryer 1 with a focus on the water channel and the air channel, The overall configuration centering on the air path will be described in more detail.
<Structure of washing and drying water channel and air channel>
The faucet 16 is connected to the inlet of the water supply valve 17, and the water supply valve 17 has four outlets, which can be switched from which outlet water is discharged. 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), and the water level in the washing tub 3 branches off from the water channel 43 and extends upward in the air hose 46. Based on the pressure change, it is detected by the water level sensor 47.

  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 the case 150, in addition to the inflow port 151 described above, a drain port 152, a first outflow port 153, and a second outflow port 154 are formed. 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. Are 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, and the air pressure in the washing tub 3 and the flow of the filter unit 15 are connected by the hose 54. The pressure on the inlet 151 side becomes equal, 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 accumulated 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 completion of the rinsing process, the first drain valve 44 is opened, the second drain valve 48 is closed, and the circulation pump 25 is stopped. The water used for rinsing 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 → water storage valve 63 → Flows to 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 this washing / drying machine 1, the used water stored in the tank 11 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. .

  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.

  The suction port of the drying pump 23 is connected to the tank 11, one end of the 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 the drying air passage 20. Connected to the first position. 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.

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, and deodorizing and sterilization of clothes to be dried can be performed.
<Structure of circulation channel>
FIG. 5 is a rear view of the washing / drying machine 1, and shows 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. In the figure for demonstrating the circulation channel structure containing, only the element required for description is 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.
<Configuration of U-turn part and gas-liquid mixer>
FIG. 6 is a perspective view showing specific configurations 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 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. An air intake hole 80 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 to the buffer chamber 75 from an air intake 74 connected to the air tube 61. 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.
<Configuration of filter unit>
Next, the configuration of the filter unit 15 will be described. As shown in FIG. 2, the filter unit 15 is attached to the front lower right portion of the washing / drying machine 1, and as described in FIG. 4, the case 150, the inlet 151, the drain 152, the first outlet 153, and A second outlet 154 is provided.

  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. 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 made of resin (for example, polypropylene), and has a front mounting plate 159 and mounting legs 160 formed integrally with the case 150, and a drain pipe formed separately. 156, the inlet pipe 155 and the outlet 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 housing 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. A hose 54 is connected to a cylindrical projection 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 drainage valve 48, the first circulation channel 55, and the water storage channel 62 are connected to the drainage port 152, the first outlet 153, and the second outlet 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 is inserted into the case 150 from the filter insertion opening 162, and the cap 85 attached to the filter main body 83 is rotated to the state shown in FIG. It becomes a state that can.

  FIG. 9 is a perspective view showing the configuration of the filter body 83 with the cap 85 removed. The filter main body 83 includes a basket 84 and a cap 85 as filtering members. The basket 84 is formed of a synthetic 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. The filtration holes arranged in the basket 84 are arranged in a comb shape with small filtration holes 86 having a hole size (maximum diameter) of a predetermined size or less, large filtration holes 87 with relatively large holes. A slit hole 89 defined between the rod bodies 88 is included. The small filtration holes 86 are arranged and formed on a part of the front left side surface and the front side 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, 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. 9). A cap 85 is rotatably fitted to the flange 95. Therefore, the cap 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 cap 85. The basket 84 of the filter main body 83 is inserted into the case 150 from the filter insertion port 162 shown in FIGS. 10 and 11, and the cap 85 is rotated after the insertion, so that a seal ring is formed between the mounting port 163 and the cap 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.

  The size (maximum diameter) of the small filtration hole 86 is made smaller than the inner diameter φ of the throttle passage 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.

  Further, 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, large foreign matter does not flow out through the drain pipe 156, and the drain hole Will not clog.

As apparent from FIGS. 8 to 12, 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 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 FIG. 9, 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 the operation failure of the cap>
Next, a configuration for preventing water leakage during washing that occurs when the cap 85 of the filter unit 15 is not properly operated will be described. First, in FIG. 13, which is a partial front view of the washing and drying machine 1, a window 100 is formed in the housing 2 on the lower right side of the front side of the washing and 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 lid 101 is attached to the window 100 so as to be openable and closable. Then, the back of the lid 101 is arranged so that the depth of the central axis of the case 150 becomes an acute angle of less than 90 degrees with respect to the back surface (substantially vertical).

    FIG. 18 is a partial perspective view of the lower part of the washing / drying machine 1 as viewed obliquely from the front, and the lid 101 is rotated forward about the lower both sides of the lid 101 and the window 100 shown in FIG. 13 is closed. Thus, the window 100 can be displaced to the open state as shown in FIG. When the lid 101 is opened, the lid 101 is opened by applying a forward force by placing a finger of a user on a hand-carrying recess 102 formed on the upper side of the lid 101.

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

  As described above, the filter main body 83 to which the cap 85 is attached from the filter insertion port 162 is inserted into the case 150, and the cap 85 is rotated, so that the filter unit 15 can function normally. The attachment of the cap 85 to the filter body 83 will be described below.

  First, as shown in FIG. 9, an arc-shaped rib 103 of approximately 230 degrees is erected on the sealing wall 94 on the front surface of the basket 84 substantially at the lower portion, and on the back surface of the cap 85 facing the sealing wall 94. A convex portion 104 is erected. Further, a locking piece 105 is formed at every 120 degrees on the inside of the outer peripheral edge of the back surface of the cap 85, and the cap 85 is engaged with the outer periphery of the cylindrical rib 93 erected forward from the sealing wall 94 of the basket 84. An engaging portion 92 is formed in which the stop piece 105 is engaged from the outside.

  Therefore, when the cap 85 is attached to the basket 84, the cap 85 is pushed into the position where the ribs 103 of the basket 84 are not formed first, and then the cap 85 is pushed further. The 85 locking pieces 105 are engaged with the engaging portion 92 from the outside. In this case, it can be rotated until the convex portion 104 on the back surface of the cap 85 comes into contact with one end portion or the other end portion of the rib 103 erected on the sealing wall 94 of the basket 84, as shown in FIG. 17 from the left limit shown in FIG. Within the right limit range, the basket 84 and the cap 85 are rotatably attached. Then, as described above, the lid 150 is disposed so that the back is low so that the central axis of the case 150 has an acute angle of less than 90 degrees with respect to the back surface (substantially vertical) of the lid 101 in the closed state. The rotation axis of the cap 85 is disposed at an acute angle with respect to the back surface of the 101.

  As described above, the filter main body 83 with the cap 85 attached to the basket 84 is inserted into the case 150 and attached. As shown in FIGS. 10 to 12, the filter insertion port 162 formed on the front attachment plate 159 and Fitting ribs 107 and 107 are erected on the left and right sides of the inner surface of the side wall of the opening-forming cylindrical portion 150c that communicates with the internal space of the case 150, and as shown in FIGS. Fitting grooves 108 and 108 into which the fitting ribs 107 and 107 can be respectively fitted are provided.

  The cap 85 is provided with an operation knob 106 extending in a circumferential direction on a string passing through the center of the circular front surface on the front surface of the cap 85. The operation knob 106 has the narrowest width at the center portion and both outer edge portions. The operation knob 106 is formed so that the length of one of the outer edges is the longest and the other outer edge is the shortest. The operation knob 106 does not necessarily have to be on the string passing through the center of the front surface of the cap 85, does not have to extend to the circumferential portion, and does not have to be formed continuously.

  Therefore, the filter main body 83 is inserted into the case 150 with the opening surface of the basket 84 of the filter main body 83 as the upper surface, and the filter main body 83 is inserted into the case 150 with the cap 85 in the upright state. . Next, when the user turns the cap 85 clockwise, the fitting ribs 107 and 107 erected on the opening forming cylindrical portion 150 c of the case 150 are fitted into the fitting grooves 108 and 108 on the peripheral side surface of the cap 85. Eventually, the fitting ribs 107 and 107 come into contact with the end portions of the fitting grooves 108 and 108, the rotation of the cap 85 is restricted, and the longitudinal direction of the operation knob 106 of the cap 85 becomes substantially horizontal, This is a completely sealed position where the cap 85 is a normal position (see FIGS. 18 and 19), and the cap 85 does not prevent the lid 101 from being closed in this position. The fitting ribs 107 and 107 of the case 150 and the fitting grooves 108 and 108 of the cap 85 form a limiting member that restricts the rotation range when the cap 85 is rotated.

  In this position, as shown in FIG. 19, the front surface of the cap 85 in which the longitudinal direction of the operation knob 106 is in a substantially horizontal state is slightly spaced from the back surface of the lid body 101 when the lid body 101 is closed. The existing parallel position. Therefore, it is possible to prevent water leakage during washing that occurs when the cap 85 of the filter unit 15 is not properly operated.

  However, as shown in FIGS. 20 and 21, when the longitudinal direction of the operated operation knob 106 is not substantially horizontal but is generally vertical and not completely closed, one of the operation knobs 106 is opened from the window 100. The part will protrude outward. For this reason, when the lid 101 is closed, the lid 101 comes into contact with the operation knob 106 and cannot be closed.

  Therefore, the user can know that the cap 85 of the filter unit 15 has not been properly rotated, and by performing the work of closing the cap 85 again, the leakage of water during washing as described above may occur. Can be prevented.

  In addition, the operation knob 106 formed on the cap 85 can be used, and there is no need to form a protrusion or a hook on the back surface of the lid 101. Therefore, there is no occurrence of “sinking” at the time of synthetic resin injection molding. Therefore, it is possible to provide a filter device having a configuration for notifying the operation failure of the cap without adversely affecting the yield of manufacturing the lid 101 and a washing machine including the filter device.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various alternatives described above without departing from the spirit of the present invention. It includes modifications or variations.

It is a longitudinal section right side view of a washing and drying machine concerning one embodiment of the present invention. It is the perspective view which looked at the washing-drying machine from which the housing | casing was removed from diagonally forward. It is the perspective view which looked at the washing-drying machine from which the housing | casing was removed from diagonally back. It is a figure which shows the structure centering on the water channel and wind path of a washing-drying machine. It is a rear view of a washing dryer. It is a perspective view which shows the specific structure of a U-turn part and a gas-liquid mixer. It is a longitudinal cross-sectional view which shows the internal structure of a gas-liquid mixer. It is a perspective view of a filter unit. It is a perspective view which shows the structure of the basket single-piece | unit which removed the cap from the filter main body. It is a front view of a case. It is AA sectional drawing of FIG. It is a perspective view of a case. It is a partial front view of a washing dryer. It is the perspective view seen from the front of a cap. It is the perspective view seen from the back of a cap. It is a front view of the state which attached the cap to the basket and rotated to the left limit. It is a front view of the state which attached the cap to the basket and rotated to the right limit. It is the fragmentary perspective view which looked at the lower part of the washing-drying machine of the state which closed the cap appropriately from diagonally forward. It is a longitudinal cross-section right view of the lower part of the washing-drying machine for showing the state which closed the cap appropriately. It is the fragmentary perspective view which looked at the lower part of the washing-drying machine of the state which has not closed the cap appropriately from diagonally forward. It is a longitudinal cross-sectional right side view of the lower part of the washing-drying machine for showing the state which has not closed the cap appropriately.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washing / drying machine 3 Washing water tank 4 Outer tank 5 Drum 15 Filter unit 83 Filter main body 84 Basket 85 Cap 101 Lid 103 Rib 104 Convex part 105 Locking piece 106 Operation knob 150 Case 162 Filter insertion port 163 Attachment port

Claims (5)

A filtration member for capturing foreign matter in the fluid when the fluid passes through;
A case having an inflow port through which a fluid flows in, an outflow port through which the fluid flows out, and a mounting port that allows the filtering member to be taken in and out;
An openable / closable lid that covers the front of the mounting opening of the case;
A cap that is provided in the filtration member and that is rotated to seal the space between the attachment port and the filtration member when the filtration member is received and set in the case from the attachment port. ,
The operation knob having a predetermined width and extending in the circumferential direction is erected on the front surface of the cap, and does not prevent the lid from being closed in an appropriate rotation operation state of the operation knob, and in an inappropriate rotation operation state. The filter device according to claim 1, wherein the lid body is in contact with an operation knob and obstructs closing. A filtration member for capturing foreign matter in the fluid when the fluid passes through;
A case having an inflow port through which a fluid flows in, an outflow port through which the fluid flows out, and a mounting port that allows the filtering member to be taken in and out;
A lid that can be opened and closed to cover the window in front of the mounting opening of the case;
A cap that is provided in the filtration member and that is rotated to seal the space between the attachment port and the filtration member when the filtration member is received and set in the case from the attachment port. ,
The operation knob having a predetermined width and extending in the circumferential direction is erected on the front face of the cap, and the front face of the operation knob and the lid closed in an appropriate rotational operation state in which the longitudinal direction of the operation knob is substantially horizontal. When the lid is closed when the back of the body is substantially parallel and does not prevent the lid from being closed, and a part of the operation knob protrudes forward from the window in an improper rotational operation state that is substantially in the vertical direction. A filter device characterized in that the lid is in contact with the protruding operation knob and obstructs closing. A filtration member for capturing foreign matter in the fluid when the fluid passes through;
A case having an inflow port through which a fluid flows in, an outflow port through which the fluid flows out, and a mounting port that allows the filtering member to be taken in and out;
A lid that can be opened and closed to cover the window in front of the mounting opening of the case;
A cap that is provided in the filtration member and that is rotated to seal the space between the attachment port and the filtration member when the filtration member is received and set in the case from the attachment port. ,
The operation knob having a predetermined width and extending in the circumferential direction is erected on the front surface of the cap and is arranged so that a rotation axis of the cap has an acute angle with respect to the rear surface of the lid body. In an appropriate rotational operation state in which the longitudinal direction is substantially horizontal, it does not prevent the lid from closing, and in an inappropriate rotational operation state in which the longitudinal direction is substantially vertical, a part of the operation knob protrudes forward from the window. A filter device characterized in that when closing the lid, the lid is brought into contact with the protruding operation knob to inhibit the closure.   The limiting member which restrict | limits the rotation range at the time of rotating the said cap was provided, and when the rotation was restrict | limited to this restricting member, it did not become the obstruction which closes the said cover body. The filter device according to claim 3.   A washing machine comprising the filter device according to any one of claims 1 to 4 for filtering water used for washing.

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