JP2017189270A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drum-type washing machine having a filter case that is easy to clean, without reduction in collection performance.SOLUTION: The drum-type washing machine includes a housing, an outer tank elastically supported in the housing, a rotary tub rotatably supported in the outer tank, a motor that rotatably drives the rotary tub, a drain passage through which water is discharged from the outer tank to the outside, and a foreign material collecting part disposed in the midstream of the drain passage for collecting foreign materials. The foreign material collecting part includes a plurality of projections that collect foreign materials.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a washing machine for washing clothes and the like.

  Patent Document 1 discloses a filter that collects foreign matter such as lint generated from washing clothes contained in an outer tub that stores a rotatable inner tub and stores washing water, and that flows out from the bottom of the outer tub. The filter device includes a filter case and a filter that is detachably attached to the filter case and collects foreign matter, and prevents the flow from flowing from the filter inlet to the filter case drainage path to disperse the filter case. By providing the dispersion wall portion provided in the collection housing portion, the waste lint and foreign matter discharged from the laundry are efficiently collected.

  Patent Document 2 has a structure in which a lifting unit body includes a filtering unit that collects foreign substances.

JP2012-80928A Japanese Translation of PCT International Publication No. 2010-526637

  However, in Patent Document 1, when foreign matters such as lint are entangled in the lattice shape of the filter case, there remains a problem that it is difficult for the user to clean the foreign matters from the filter case during cleaning.

  Moreover, in patent document 2, since the filter case is provided in the inside of a washing tub, there exists a problem that foreign materials, such as a waste thread which came out of the washing tub, cannot be collected.

  Then, this invention makes it a subject to provide a drum type washing machine provided with the filter case which improved the cleaning property, suppressing the reduction of collection performance.

  As an example of the present invention, a housing, an outer tub that is supported in a vibration-proof manner in the housing, a rotating tub that is rotatably supported in the outer tub, a motor that rotationally drives the rotating tub, A drainage path that drains water from the outer tub to the outside of the machine, and a foreign matter collection part that collects foreign matter provided in the middle of the drainage path, wherein the foreign matter collection part is a plurality of foreign matter collection parts. It is characterized by providing the projection part.

  ADVANTAGE OF THE INVENTION According to this invention, a drum type washing machine provided with the filter case which improved the cleaning property, suppressing the reduction | decrease of collection performance can be provided.

It is an external appearance perspective view which shows the washing-drying machine which concerns on this invention. It is a side view which shows roughly the internal structure of the housing | casing of the washing-drying machine which concerns on this invention. It is a rear view which shows roughly the internal structure of the housing of the washing / drying machine which concerns on this invention. It is a perspective view which shows the 1st circulation pump and peripheral flow path of a washing-drying machine. This is a configuration viewed from another angle around the filter case 23. The structure of the foreign material collection part 231 is shown. FIG. 6 shows a cross-sectional view along AA ′ of FIG. 5. (a) is the figure which looked at the foreign material collection part 231 from the upper surface, (b) of FIG. 8 is the figure which looked at the foreign material collection part 231 from the upper surface. BB 'sectional view of FIG. 6 is shown. (a) is the figure which looked at the foreign material collection part 231 from the upper surface, (b) is the figure which looked at the foreign material collection part 231 from the upper surface. The enlarged view of another example of the foreign material collection part 231 is shown. The structure of the foreign material collection part 231 which concerns on Example 2 is shown.

  Next, a drum-type washing / drying machine (washing / drying machine) according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, the front-rear, up-down, left-right directions are based on the front-rear, up-down, left-right directions shown in FIG.

  FIG. 1 is an external perspective view showing a washing / drying machine according to the present embodiment.

  As shown in FIG. 1, the washing / drying machine S includes a housing 1 that forms an outer shell. The housing 1 includes left and right side plates 1a and 1b, a front cover 1c, a back cover 1d (see FIG. 2), an upper cover 1e, a lower front cover 1f, and a base 1h. In addition, the left and right side plates 1a and 1b of the housing 1 are coupled with a U-shaped upper reinforcing material (not shown), a front reinforcing material (not shown), and a rear reinforcing material (not shown), and a base 1h. A box shape is included.

  Near the center of the front cover 1c, there is provided a door 9 that closes an input port for taking in and out laundry. An operation panel 6 including a power switch 39, operation switches 13 and 15, a display 14 and the like is provided at the upper center of the front cover 1c. The operation panel 6 is electrically connected to a control device 60 (see FIG. 2) provided at the lower part of the housing 1.

  FIG. 2 is a side view schematically showing the internal structure of the casing of the washing / drying machine of this embodiment.

  As shown in FIG. 2, the washing and drying machine S includes a housing 1, an outer tub 2 that is supported in a vibration-proof manner in the housing 1, a rotating drum 3 that is rotatably supported in the outer tub 2, A drum motor 4 (see FIG. 3) for rotating the rotary drum 3, a blower unit 51, an outlet 52 serving as an inlet for blowing the air (warm air) generated by the blower unit 51 into the rotary drum 3, and a detergent First detergent liquid supply means 53 that supplies liquid into the rotary drum 3, second detergent liquid supply means (detergent liquid supply means) 54 that supplies detergent liquid to the upstream side of the outlet 52, and upstream of the outlet 52 A tap water supply means 55 (not shown) for supplying tap water (fresh water) to the side and a control device 60 are provided. The detergent liquid supply means 53 and 54 may supply a high concentration detergent liquid. The high concentration detergent solution means a detergent solution having a concentration (for example, 8 times) higher than the concentration of the detergent solution in the washing step.

  The outer tub 2 has a cylindrical shape, includes the rotating drum 3 coaxially, and has an open front surface. An outer tank cover 2 d that enables water storage in the outer tank 2 is provided at the opening on the front surface. In addition, the lower side of the outer tub 2 is supported in a vibration-proof manner by a damper 5 fixed to the base 1h. A rubber bellows 10 is provided at the opening of the outer tub 2 (outer tub cover 2d), and the outer tub 2 is sealed with water by closing the door 9.

  The rotating drum 3 is a cylindrical washing and dewatering tub that is rotatably supported, and has a large number of through holes (not shown) for water flow and ventilation on its outer peripheral wall and bottom wall, and is provided at the front end face. Is provided with an opening 3a for taking in and out the laundry. A fluid balancer 3c that rotates integrally with the rotary drum 3 is provided on the outer peripheral side of the opening 3a. Further, a lifter 3 b for lifting the laundry is provided on the inner peripheral wall of the rotating drum 3. Further, the rotation center axis of the rotary drum 3 is inclined so that the horizontal or opening 3a side becomes higher.

  The blower unit 51 includes a blower 51a and a heater 51b, and is fixed to a reinforcing material (not shown) in the housing 1. The blower 51a includes a driving motor 24a (fan motor), a fan impeller 24b (not shown), and a fan case 24c. The fan case 24c has a built-in heater 51b for heating the air sent from the fan impeller 24b. The heater 51b is composed of a PTC (Positive Temperature Coefficient) heater or the like.

  A discharge port 51 c of the blower unit 51 is connected to the hot air duct 26. The hot air duct 26 is connected to a rubber bellows tube 27, and the bellows tube 27 is connected to a blowout port 52 provided in the outer tank cover 2 d via a bellows tube joint 28.

  The first detergent liquid supply means 53 includes a first circulation pump 53a, a bellows hose 53b1 for supplying the detergent liquid pumped up by the first circulation pump 53a into the rotary drum 3 in a shower shape, and a supply flow path 53b2 (partially (Not shown).

  The 2nd detergent liquid supply means 54 is provided with the 2nd circulation pump 54a and the supply pipe | tube 54b which supplies the detergent liquid pumped up by this 2nd circulation pump 54a to the upstream of the blower outlet 52, and is comprised. . The second circulation pump 54a pumps up a high-concentration detergent liquid having a lower flow rate than the first circulation pump 53a. The supply pipe 54b is configured by a flow path having a smaller diameter than the supply pipe 53b. In the present embodiment, the second detergent liquid supply means 54 is not necessarily required as the detergent liquid supply means, and may be constituted by one of the first detergent liquid supply means 53.

  A drying duct 29 is arranged inside the back surface of the housing 1. The drying duct 29 is connected to an intake port provided at the rear portion of the outer tub 2 via a rubber bellows hose 29a. A known water-cooled dehumidifying mechanism (not shown) is built in the drying duct 29. A heat pump may be used instead of the heater and the water-cooled dehumidifying mechanism.

  One end of the drainage hose 19 is connected to the water discharge port of the first circulation pump 53a, and the other end extends outside the machine. Further, the drainage hose 19 is provided with a drainage valve 25 in the middle of extension in the machine.

  FIG. 3 is a rear view schematically showing the internal structure of the casing of the washing / drying machine of the present embodiment.

  As shown in FIG. 3, a water supply port 2 a for supplying water and detergent into the outer tub 2 is provided at the rear side of the outer tub 2. The water supply port 2 a is connected to the detergent tray 7 (see FIG. 1) and a rubber bellows hose 17.

  The drum motor 4 is attached to the outer center of the rear end face of the outer tub 2. The rotating shaft of the drum motor 4 passes through the outer tub 2 and is coupled to the rotating drum 3.

  On the upper rear portion of the outer tub 2, water supply related parts such as a water supply electromagnetic valve 11, a bath water absorption pump 12, and a water level sensor 34 (not shown) are provided. The top cover 1e is provided with a water supply hose connection port 11a from a water tap and a water absorption hose connection port 12a for remaining hot water in the bath. The water level sensor (not shown) detects the water level in the outer tub 2 and is provided at the lowermost part of the rear end face of the outer tub 2 and is constituted by a known air trap (not shown) or a tube (not shown). Has been.

  The water supply electromagnetic valve 11 includes a main water supply electromagnetic valve 11b, a finishing agent water supply electromagnetic valve 11c, a cooling water supply electromagnetic valve 11d, a mist water supply electromagnetic valve 11e, and the like.

  The main water supply electromagnetic valve 11b supplies tap water from the water supply hose connection port 11a to the outer tub 2 through a detergent charging chamber (not shown) of the detergent tray 7 (see FIG. 1). The tap water supplied to the detergent charging chamber is poured into the outer tub 2 through the bellows hose 17 together with the introduced detergent.

  The finishing agent water supply electromagnetic valve 11c supplies tap water from the water supply hose connection port 11a to a finishing agent charging chamber (not shown) of the detergent tray 7 (see FIG. 1) through a water supply path (not shown). The tap water poured into the finishing agent charging chamber is poured into the outer tub 2 through the bellows hose 17 together with the finishing agent (softener) added.

  The cooling water supply electromagnetic valve 11d supplies tap water from the water supply hose connection port 11a to a water cooling / dehumidifying mechanism (not shown) of the drying duct 29 through a water supply path (not shown).

  The mist water supply electromagnetic valve 11e supplies the tap water from the water supply hose connection port 11a to the upstream side of the outlet 52 (see FIG. 2) through the water supply pipe 55a (not shown).

  FIG. 4 is a perspective view showing the filter case 23 and the peripheral flow path of the washing / drying machine. As shown in FIG. 4, the first circulation pump 53 a includes a casing 42 formed integrally with the filter case 23 and a circulation pump motor 47. In the casing 42, discharge ports 44 and 45 are formed. Further, the hose 22 is connected to a drain port (not shown).

  The discharge port 45 is connected to the joint 18 a via the bellows hose 40. The joint 18 a is provided in the inlet 18 formed so as to face the recess 2 f at the bottom of the outer tub 2. The filter case 23 is provided in the middle of the drainage path for draining the water from the outer tub 2 to the drainage port (not shown), and is provided in the middle of the circulation path of the circulation pump motor 47.

  FIG. 5 shows a configuration viewed from another angle around the filter case 23. FIG. 6 shows the configuration of the foreign matter collecting part 231 in the filter case 23. A foreign matter collecting portion 231 that collects foreign matters such as lint and lint includes a plurality of protrusions 70 from the bottom surface. The foreign matter can be efficiently collected by the foreign matter entangled with these protrusions 70. Moreover, since the foreign material entangled with the projection part 70 should just be removed toward the front-end | tip direction of the projection part 70, a foreign material can be easily cleaned and the cleaning property improves.

  FIG. 7 is a cross-sectional view taken along the line AA ′ of FIG. The water flowing from the outer tub 2 passes through the filter case 23. The passed water is circulated by the drainage or circulation pump motor 47 via the drainage hose 22. At this time, since the flowing water always passes through the filter case 23, lint coming out from the outside of the rotating drum 3 can also be collected. In FIG. 7, water is circulated through the circulation hole 471 from the front side of the paper toward the back side.

  Here, when the height of the protrusions 70 is the same and the density of the protrusions 70 is high, the lint is placed on the tip of the protrusions 70 as shown in the image of FIG. There is a risk of clogging. Here, FIG. 8A is a view of the foreign matter collecting section 231 as viewed from above, and FIG. 8B is a view of the foreign matter collecting section 231 as viewed from above.

  Therefore, FIG. 6A, which is a perspective view of the foreign matter collecting portion 231, FIG. 6B, which is a view of the foreign matter collecting portion 231 from above, and FIG. However, as shown in the filter case 23, in the present embodiment, the first protrusion 71 having a first height 71 h arranged in the outer peripheral region 711, which is an outer region of the foreign matter collecting portion 231. And a second protrusion 72 having a second height 72h that is lower than the first height disposed in the inner region 721 that is an inner region of the foreign matter collecting portion 231. Thereby, lint accumulates in the area | region inside the foreign material collection part 231 in which the 2nd projection part 72 is arrange | positioned. The image is shown in FIG. FIG. 10A is a view of the foreign matter collecting section 231 as viewed from above, and FIG. 10B is a view of the foreign matter collecting section 231 as viewed from above. In this way, clogging of the piping can be suppressed.

  Although the collection performance is improved by the presence of the second protrusion 72, the second protrusion 72 may be omitted.

  FIG. 11 shows an enlarged view of another example of the foreign matter collecting unit 231. Reinforcing reinforcing ribs 80 are provided on the outer periphery. Further, the reinforcing rib 80 is provided with a slit shape for draining water. Thereby, the foreign substance collection part 231 can be drained. Furthermore, since the water draining shape is not a round hole but a slit shape 81 having an opening 82 on the upper side, for example, when a foreign matter is entangled between a plurality of slit shapes, the direction along with the foreign matter entangled with the protrusion 70 It is possible to eliminate the deterioration of the cleaning property.

  Further, the first protrusion 71 has a protrusion 71 a having a low height on the tip side of the foreign matter collecting part 231. Thereby, when a user attaches filter case 23, it becomes possible to suppress a mistaken combination so that it may not attach in the wrong direction.

  As mentioned above, according to the present Example, the foreign material collection part 231 can collect a foreign material efficiently by providing the some projection part 70. FIG.

  In addition, the first protrusion 71 having the first height 71 h disposed in the outer peripheral region 711 of the foreign matter collection unit 231 and the first height disposed in the inner region 721 of the foreign matter collection unit 231. By providing the 2nd projection part 72 which has the low 2nd height 72h, a collection performance can be ensured with suppression of piping clogging.

  Moreover, the strength of the foreign matter collecting portion 231 can be ensured by providing the reinforcing rib 80 for reinforcement on the outer periphery.

  Further, by providing the reinforcing rib 80 with the slit shape 81 having the opening 82, it is possible to suppress the deterioration of the cleaning property.

  Further, by providing the projection 71a having a low height on the distal end side of the foreign matter collecting portion 231 in the first projection 71, it is possible to suppress erroneous assembly.

  Next, the structure of the foreign material collection part 231 which concerns on FIG. 12 at Example 2 is shown. FIG. 12 is a view of the foreign matter collecting portion 231 as viewed from above. The difference from FIG. 6 and the like is that the density at which the protrusions 70 in the outer region 711 and the inner region 721 are arranged is different.

  The density at which the first protrusions 71 are disposed in the outer region 711 is higher than the density at which the second protrusions 72 are disposed in the inner region 721. That is, the interval at which the first protrusions 71 are arranged in the outer region 711 (the distance between the first protrusions 71) is the interval at which the second protrusions 72 are arranged in the inner region 721 (each Shorter than the distance between the second protrusions 72).

  According to the present embodiment, the clogging of the piping is suppressed by the second protrusions 72 having a low density, and the collection performance is improved by the dense first protrusions 71.

  Although the arrangement pattern of the protrusions 70 is staggered as shown in FIGS. 6 and 12, etc., the present invention is not limited to this, and may be, for example, a lattice arrangement.

  In the above embodiment, the drum type washing machine has been described as an example. However, the present invention can also be applied to a vertical washing machine, and the drying function is not essential. It can also be applied to a washing machine without a circulation pump.

1 body
2 Outer tank 3 Rotating drum 4 Drum motor (motor)
11 Water Supply Solenoid Valve 23 Filter Case S Washer / Dryer

Claims (6)

A housing,
An outer tub that is supported in a vibration-proof manner in the housing;
A rotating tub rotatably supported in the outer tub;
A motor for rotationally driving the rotating tub;
A drainage path for draining from the outer tank to the outside of the machine;
A foreign matter collecting part for collecting foreign matter provided in the middle of the drainage path,
The washing machine according to claim 1, wherein the foreign matter collecting section includes a plurality of protrusions for collecting foreign matters. The washing machine according to claim 1,
The plurality of protrusions include a first protrusion in an outer region of the foreign matter collection portion, and a portion having a lower height than the first protrusion in an inner region of the foreign matter collection portion. Features a washing machine. A washing machine according to claim 2,
The portion having a lower height than the first protrusion includes a second protrusion that is lower than the height of the first protrusion. The washing machine according to claim 3,
The washing machine according to claim 1, wherein the density of the first protrusions is higher than the density of the second protrusions. The washing machine according to claim 1,
The said foreign material collection part is equipped with the reinforcing rib for reinforcement along outer periphery, The washing machine characterized by the above-mentioned. The washing machine according to claim 5,
The washing machine according to claim 1, wherein the reinforcing rib has a slit shape having an opening.

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