JP6832147B2 - Drum type washing machine - Google Patents

Description

Embodiments of the present invention relate to a drum-type washing machine.

For example, as disclosed in Patent Document 1, a drum-type washing machine having a plurality of injection ports for injecting water into a water tank in a shower shape has been considered.

Japanese Unexamined Patent Publication No. 2011-245268

In this type of drum-type washing machine, a circulation path is provided on the back surface of the water tank cover that constitutes the front surface of the water tank, and water in the water tank is pumped by a circulation pump through this circulation path to enter the water tank from a plurality of injection ports. It is configured to inject water into the water. By the way, in the configuration in which a plurality of injection ports are provided in the circulation path, it is necessary to branch the circulation path for each injection port in order to connect each injection port to the circulation path. Therefore, at this branching portion, a pressure loss may occur in the water flowing in the circulation path, and the water force of the water injected from the injection port may decrease. Further, in this branching portion, foreign matter such as lint contained in the circulating water tends to accumulate, and therefore, the injection port is blocked by the accumulated foreign matter and the water force decreases, or it is difficult or impossible to inject water. There is a risk of becoming.

Therefore, in a configuration in which a plurality of injection ports are provided in the circulation path for circulating water in the water tank, it is possible to avoid the occurrence of water pressure loss at the branch portion and to prevent foreign matter from accumulating at the branch portion. Provide a drum-type washing machine that can be used.

The drum-type washing machine according to the present embodiment includes a water tank, a circulation path, a plurality of injection ports, and a partition. The circulation path circulates the water in the aquarium. The injection ports are provided in the circulation path, and each of them injects water into the water tank. The partition portion extends from the most upstream injection port provided in the circulation path among the plurality of injection ports toward the upstream side in the circulation path, and the most upstream injection port in the circulation path. It is divided into a circulation path for the most upstream injection port connected to the above and a circulation path for a non-upstream injection port connected to a non-upstream injection port which is an injection port other than the most upstream injection port. Then, the partition portion forms the circulation path for the most upstream injection port and the circulation path for the non-upstream injection port as independent circulation paths.

Longitudinal side view schematically showing a configuration example of the drum type washing machine according to the first embodiment. Rear view showing a schematic configuration example of the water tank cover with the water injection cover attached. Rear view showing a schematic configuration example of the water tank cover when the water injection cover is not attached. It is a rear view which concerns on 2nd Embodiment and shows the structural example of the water tank cover in the state which two water injection covers are attached. Rear view schematically showing a configuration example of the water tank cover in a state where one water injection cover on the back side is not attached. Cross-sectional view of the circulation path along the F6-F6 line of FIG. Cross-sectional view of the circulation path along the F7-F7 line of FIG. The rear view which concerns on the 3rd Embodiment and shows the structural example of the water tank cover in the state which the water injection cover is not attached schematicly. FIG. 4 is a sectional view of a circulation path in the vicinity of the circulating water inflow portion according to the fourth embodiment.

Hereinafter, a plurality of embodiments relating to the drum type washing machine will be described with reference to the drawings. In each embodiment, substantially the same elements are designated by the same reference numerals, and the description thereof will be omitted.
(First Embodiment)
The drum-type washing machine 10 illustrated in FIG. 1 is provided with a laundry entrance / exit 12 for taking in / out laundry in the central portion of the front surface of the housing 11 constituting the outer shell. Hereinafter, the drum type washing machine 10 is simply referred to as "washing machine 10". The laundry entrance 12 has a circular opening, and is opened and closed by a circular door 13. Inside the housing 11, a bottomed cylindrical water tank 14 in which water is stored is provided. The water tank 14 is elastically supported by a pair of suspensions 15 provided on the left and right sides of the bottom of the water tank 14.

A water tank cover 16 is provided on the front surface of the water tank 14. An opening 17 that opens in a circular shape is provided in the central portion of the water tank cover 16. The water tank cover 16 having an opening 17 in the central portion forms an annular front wall portion on the front surface of the water tank 14. A plurality of injection ports 18A and 18B, in this case, two injection ports 18A and 18B are provided on the rear surface portion of the water tank cover 16. The injection ports 18A and 18B are formed by attaching the water injection cover 19 to the rear surface of the water tank cover 16. The water injection cover 19 is fixed to the rear surface of the water tank cover 16 by, for example, vibration welding. The water injection cover 19 may be fixed by screws or the like via packing, for example, instead of welding.

A drum 20 is rotatably provided inside the water tank 14. The rotation axis of the drum 20 is inclined so that the rear surface side is lower than the front surface side along the front-rear direction of the washing machine 10, that is, the depth direction. The drum 20 is rotated by a drive motor 21 provided on the rear surface of the water tank 14. A balance ring 22 is provided on the front surface of the drum 20. An opening 23 that opens in a circular shape is provided at the center of the balance ring 22. The balance ring 22 having an opening 23 at the center forms an annular front wall portion on the front surface of the drum 20.

Further, the washing machine 10 includes a water supply mechanism unit 30, a drainage mechanism unit 31, and a circulation mechanism unit 32. The water supply mechanism unit 30 includes a water supply valve 30a, a water supply case 30b, and the like in the middle of the water supply path 30R extending from the water supply port portion 11a of the housing 11 to the water supply port portion 14a of the water tank 14. The water supply mechanism unit 30 supplies water to the water tank 14 in the washing process of washing the laundry in the drum 20 and the rinsing process of rinsing the laundry. The water supply case 30b has a detergent input section (not shown).

The drainage mechanism unit 31 is provided with a drainage valve 31a or the like in the middle of the drainage path 31R extending outside the machine from the drainage port portion 14b of the water tank 14. The drainage mechanism unit 31 discharges the water in the water tank 14 to the outside of the machine in the drainage process. The circulation mechanism unit 32 includes a circulation pump 32a and the like in the middle of the circulation path 32R extending from the drainage port portion 14b of the water tank 14 to the plurality of injection ports 18A and 18B. The circulation mechanism unit 32 sucks and pumps the water in the water tank 14 by driving the circulation pump 32a, for example, in the washing stroke and the rinsing stroke, and injects the water into the water tank 14 from the plurality of injection ports 18A and 18B in a shower shape. To do. That is, the circulation mechanism unit 32 injects the water in the water tank 14 in a shower shape while circulating the water in the water tank 14 through the circulation path 32R.

In this case, the circulation path 32R has an external circulation path 32Ra provided outside the water tank 14 and an internal circulation path 32Rb provided inside the water tank 14. The external circulation path 32Ra is connected to the circulating water inflow portion 14c of the water tank 14 from the drain port portion 14b via the circulation pump 32a outside the water tank 14. The external circulation path 32Ra shares a part thereof, in this case, a portion from the drain port portion 14b of the water tank 14 to the circulation pump 32a with the drainage path 31R. On the other hand, as illustrated in FIGS. 2 and 3, the internal circulation path 32Rb extends in an arc shape from the circulating water inflow portion 14c of the water tank 14 along the side portion of the opening 17 inside the water tank 14, and the opening thereof. It extends to the top of the portion 17. The internal circulation path 32Rb is provided with a plurality of injection ports 18A and 18B at the tip portion located above the opening 17.

Next, a configuration example of the plurality of injection ports 18A and 18B and their peripheral portions will be described in more detail. As illustrated in FIGS. 2 and 3, the plurality of injection ports 18A and 18B are all provided on the rear surface of the water tank cover 16. The injection ports 18A and 18B are both provided above the center line L1 that divides the water tank cover 16 into two in the vertical direction when the water tank cover 16 is viewed from the back surface side. Further, the injection ports 18A and 18B are provided substantially symmetrically to the left and right with the center line L2 that divides the water tank cover 16 into two in the left-right direction when the water tank cover 16 is viewed from the back surface side. Oriented towards the center of. Both the injection ports 18A and 18B are connected to the internal circulation path 32Rb that forms a part of the circulation mechanism unit 32. The internal circulation path 32Rb extends in an arc shape along the opening shape of the opening 17 of the water tank cover 16 so as to pass through one side portion and the upper portion of the opening 17.

The water circulated by the circulation mechanism section 32 flows from the external circulation path 32Ra through the circulating water inflow section 14c into the internal circulation path 32Rb, and further passes through the internal circulation path 32Rb from the two injection ports 18A and 18B to the water tank 14 It is sprayed inside like a shower. The tips of the injection ports 18A and 18B are both smoothly inclined toward the inside of the water tank 14, in this case, the lower rear part. Therefore, the water jetted from the injection ports 18A and 18B goes toward the lower rear part inside the water tank 14 while being guided by the shape of the tip portions of the injection ports 18A and 18B.

Here, in the present embodiment, the circulating water inflow portion 14c is below the center line L1 that divides the water tank cover 16 into two in the vertical direction when the water tank cover 16 is viewed from the back side, and the water tank cover 16 is on the back side. When viewed from the side, the water tank cover 16 is provided on the right side of the center line L2 that divides the water tank cover 16 into two in the left-right direction. The circulating water inflow portion 14c is an example of a connecting portion that connects the external circulation path 32Ra and the internal circulation path 32Rb, and in this case, has a tubular shape extending in the vertical direction.

Then, in the present embodiment, in the internal circulation path 32Rb which is a part of the circulation path 32R, the circulating water is supplied from the circulating water inflow portion 14c side which is the base end side, and the injection port 18A which is the tip end side. , Flows toward the 18B side. Therefore, in the internal circulation path 32Rb, the circulating water inflow portion 14c side on the base end side is the upstream side in the circulation direction, and the injection ports 18A and 18B on the tip end side are on the downstream side in the circulation direction.

In the present embodiment, of the two injection ports 18A and 18B, the injection port provided on the most upstream side of the circulation path 32R is the injection port 18B. Therefore, in the present embodiment, the injection port 18B can be defined as an example of the most upstream injection port provided on the most upstream side in the circulation path. On the other hand, in the present embodiment, of the two injection ports 18A and 18B, the injection port provided on the most downstream side of the circulation path 32R is the injection port 18A. Therefore, in the present embodiment, the injection port 18A can be defined as an example of the most downstream injection port provided on the most downstream side in the circulation path, and the non-upstream injection which is an injection port other than the most upstream injection port. It can also be defined as an example of the mouth.

A rib 40, which is an example of the partition portion, is provided inside the circulation path 32R, in this case, inside the internal circulation path 32Rb. The rib 40 extends from the corner portion 18c on the tip end side, that is, the downstream side of the injection port 18B, which is an example of the most upstream injection port, toward the radial outer side of the water tank 14, and then smoothly bends in the internal circulation path 32Rb. The inside of the internal circulation path 32Rb extends toward the upstream side, that is, the circulating water inflow portion 14c side. The rib 40 is smoothly bent outward in the radial direction of the water tank 14 at the downstream portion of the circulating water inflow portion 14c and is connected to the circulating water inflow portion 14c. That is, the rib 40 extends from the injection port 18B in the internal circulation path 32Rb toward the upstream side to the circulating water inflow portion 14c.

Further, the rib 40 as a whole constitutes a wall surface along the axial direction of the water tank 14, and is curved in the internal circulation path 32Rb so as to follow the curved shape of the internal circulation path 32Rb. As a result, the rib 40 partitions the inside of the internal circulation path 32Rb into the circulation path 41a for the most upstream injection port and the circulation path 41b for the most downstream injection port.

The circulation path 41a for the most upstream injection port constitutes a circulation path extending in the internal circulation path 32Rb from the circulating water inflow portion 14c toward the downstream side and connecting to the injection port 18B which is an example of the most upstream injection port. There is. The circulation path 41a for the most upstream injection port is curved so as to follow the curved shape of the internal circulation path 32Rb. Further, the circulation path 41a for the uppermost flow injection port constitutes a water channel in which the width dimension along the radial direction of the water tank 14 is substantially constant over the entire length thereof.

On the other hand, the circulation path 41b for the most downstream injection port extends in the internal circulation path 32Rb from the circulating water inflow portion 14c toward the downstream side, and reaches the most downstream injection port and the injection port 18A which is an example of the non-upstream injection port. It constitutes a connecting circulation path. The circulation path 41b for the most downstream injection port is curved so as to follow the curved shape of the internal circulation path 32Rb. Further, the most downstream injection port circulation path 41b is located on the downstream side where the width dimension along the radial direction of the water tank 14 exceeds the tip end portion of the most upstream injection port circulation path 41a, and the tip of the most upstream injection port circulation path 41a. It constitutes a waterway that expands more than the upstream side that does not exceed the part.

The circulating water W flowing from the circulating water inflow portion 14c into the internal circulation path 32Rb is divided by the upstream end of the rib 40, that is, the end connected to the circulating water inflow portion 14c, and one of them is indicated by an arrow w1. As illustrated, the water is injected into the water tank 14 from the injection port 18B through the circulation path 41a for the most upstream injection port, and the other is injected from the injection port 18A through the circulation path 41b for the most downstream injection port as illustrated by the arrow w2. It is injected into 14.

According to the washing machine 10 according to the present embodiment, inside the circulation path 32R, in this case, inside the internal circulation path 32Rb provided in the water tank 14, the rib 40 is located on the most upstream side in the circulation direction of the circulating water W. The internal circulation path 32Rb extends from the provided injection port 18B toward the upstream side, and the inside of the internal circulation path 32Rb is connected to the most upstream injection port circulation path 41a and the injection port 18A connected to the injection port 18B. It is partitioned into a circulation path 41b for the downstream injection port.

That is, in a configuration in which a plurality of injection ports 18A and 18B are provided in the circulation path 32R for circulating water in the water tank 14, the inside of the circulation path 32R is partitioned by ribs 40 to connect to the plurality of injection ports 18A and 18B, respectively. The circulation path was set up. According to this configuration, circulating water can be supplied to the plurality of injection ports 18A and 18B, respectively, without providing the "branch portion" which has been a problem in the conventional configuration. Therefore, there is no need to worry about the occurrence of water pressure loss at the "branch portion", and there is no need to worry about foreign matter accumulating at the "branch portion".

Further, according to the washing machine 10, in the internal circulation path 32Rb, the rib 40 as a whole constitutes a wall surface along the axial direction of the water tank 14. According to this configuration, the inside of the internal circulation path 32Rb can be reliably partitioned by the rib 40, and the circulation path 41a for the most upstream injection port and the circulation path 41b for the most downstream injection port can be circulated independently for each injection port. It can be formed as a road. The rib 40 may be configured to be inclined with respect to the axial direction of the water tank 14.

Further, according to the washing machine 10, in the internal circulation path 32Rb, the rib 40 extends from the injection port 18B toward the upstream side to the circulating water inflow portion 14c. That is, since the rib 40 is provided from the portion serving as the inlet of the circulating water W into the internal circulation path 32Rb, the circulating water W flowing into the internal circulation path 32Rb is used for the most upstream injection port at the inlet portion. It can be reliably divided into the circulation path 41a side and the circulation path 41b side for the most downstream injection port. Therefore, the circulating water W can be stably guided to the injection port 18B through the circulation path 41a for the most upstream injection port, and the circulating water W can be stably guided to the injection port 18A through the circulation path 41b for the most downstream injection port. be able to.

(Second Embodiment)
In this embodiment, the partition portion is not in the axial direction of the water tank but in the radial direction. That is, as illustrated in FIGS. 4 and 5, the washing machine 10 includes a plurality of washing machines 10, in this case, two water injection covers 19A and 19B. The water injection cover 19A is a water injection cover extending from the base end portion of the internal circulation path 32Rb, that is, the end portion on the circulating water inflow portion 14c side to the tip portion, that is, the end portion on the injection port 18A side, and corresponds to the total length of the internal circulation path 32Rb. It is provided. As illustrated in FIGS. 6 and 7, the water injection cover 19A has a side wall surface 19Aa along the axial direction of the water tank 14 and a partition wall surface 19Ab along the radial direction of the water tank 14.

On the other hand, the water injection cover 19B is a water injection cover extending from the base end portion of the internal circulation path 32Rb, that is, the end portion on the circulating water inflow portion 14c side to the injection port 18B, and is provided corresponding to a part of the internal circulation path 32Rb. .. The water injection cover 19B has a side wall surface 19Ba along the axial direction of the water tank 14 and a partition wall surface 19Bb along the radial direction of the water tank 14.

As illustrated in FIG. 5, a water injection cover 19B is first attached to the back surface of the water tank cover 16. As a result, the circulation path 141a for the most upstream injection port is formed, which connects the circulating water inflow portion 14c to the injection port 18B. Then, the water injection cover 19A is further attached to the back surface side of the water injection cover 19B. As a result, the most downstream injection port circulation path 141b that connects the circulating water inflow portion 14c to the injection port 18A is formed.

That is, according to the washing machine 10 of the present embodiment, a part of the circulation path 32R, in this case, the water tank 14 is provided by the side wall surface 19Ba of the water injection cover 19B, the side wall surface 19Aa of the water injection cover 19A, and the partition wall surface 19Ab of the water injection cover 19A. The internal circulation path 32Rb provided inside the above is configured. Then, the inside of the internal circulation path 32Rb is partitioned by the partition wall surface 19Bb of the water injection cover 19B, so that the circulation path 141a for the most upstream injection port and the circulation path 141b for the most downstream injection port are formed inside the internal circulation path 32Rb. It has become a structure.

In the above-described first embodiment, the configuration in which the circulation path 41a for the most upstream injection port and the circulation path 41b for the most downstream injection port are provided side by side in the internal circulation path 32Rb along the radial direction of the water tank 14 is illustrated. On the other hand, in the present embodiment, a configuration in which the circulation path 141a for the most upstream injection port and the circulation path 141b for the most downstream injection port are provided along the axial direction of the water tank 14 in the internal circulation path 32Rb is illustrated. ing.

The partition wall surface 19Bb of the water injection cover 19B functions as an example of a partition portion that partitions the inside of the internal circulation path 32Rb into the circulation path 141a for the most upstream injection port and the circulation path 141b for the most downstream injection port. The partition wall surface 19Bb of the water injection cover 19B extends from the corner portion 18c on the tip end side of the injection port 18B toward the upstream side, that is, the circulating water inflow portion 14c side while smoothly bending in the internal circulation path 32Rb, and circulates. It is connected to the water inflow section 14c.

Also in the present embodiment, the circulation path 141a for the most upstream injection port extends in the internal circulation path 32Rb toward the downstream side from the circulating water inflow portion 14c and is connected to the injection port 18B which is an example of the most upstream injection port. It constitutes a circulation path. Further, the circulation path 141a for the uppermost flow injection port is curved so as to follow the curved shape of the internal circulation path 32Rb. On the other hand, the circulation path 141b for the most downstream injection port extends in the internal circulation path 32Rb from the circulating water inflow portion 14c toward the downstream side, and reaches the most downstream injection port and the injection port 18A which is an example of the non-upstream injection port. It constitutes a connecting circulation path. Further, the circulation path 141b for the most downstream injection port is curved so as to follow the curved shape of the internal circulation path 32Rb.

As illustrated in FIG. 7, the circulating water W flowing into the internal circulation path 32Rb from the circulating water inflow portion 14c is connected to the upstream end of the partition wall surface 19Bb of the water injection cover 19B, that is, the circulating water inflow portion 14c. One is injected into the water tank 14 from the injection port 18B through the circulation path 141a for the most upstream injection port as illustrated by the arrow w1, and the other is the most as illustrated by the arrow w2. It is injected into the water tank 14 from the injection port 18A through the circulation path 141b for the downstream injection port.

Also in the washing machine 10 according to the present embodiment, in a configuration in which a plurality of injection ports 18A and 18B are provided in the circulation path 32R that circulates in the water tank 14, the inside of the circulation path 32R is partitioned by the partition wall surface 19Bb of the water injection cover 19B. Dedicated circulation paths are provided to connect to the plurality of injection ports 18A and 18B, respectively. Therefore, the circulating water W can be supplied to the plurality of injection ports 18A and 18B, respectively, without providing the "branch portion" which has been a problem in the conventional configuration. Therefore, there is no need to worry about the occurrence of water pressure loss at the "branch portion", and there is no need to worry about foreign matter accumulating at the "branch portion".

Further, according to the washing machine 10, in the internal circulation path 32Rb, the partition wall surface 19Bb of the water injection cover 19B as a whole constitutes a wall surface along the radial direction of the water tank 14. According to this configuration, the inside of the internal circulation path 32Rb can be reliably partitioned by the partition wall surface 19Bb of the water injection cover 19B, and the circulation path 141a for the most upstream injection port and the circulation path 141b for the most downstream injection port are independent of each other. It can be formed as a circulation path dedicated to the injection port. The partition wall surface 19Bb of the water injection cover 19B may be configured to be inclined with respect to the radial direction of the water tank 14.

Further, according to the washing machine 10, in the internal circulation path 32Rb, the partition wall surface 19Bb of the water injection cover 19B extends from the injection port 18B toward the upstream side to the circulating water inflow portion 14c. That is, since the partition wall surface 19Bb of the water injection cover 19B is provided from the portion serving as the inlet of the circulating water into the internal circulation path 32Rb, the circulating water W flowing into the internal circulation path 32Rb is introduced at the inlet portion. It can be reliably divided into the circulation path 141a side for the most upstream injection port and the circulation path 141b side for the most downstream injection port. Therefore, the circulating water W can be stably guided to the injection port 18B through the circulation path 141a for the most upstream injection port, and the circulating water W can be stably guided to the injection port 18A through the circulation path 141b for the most downstream injection port. be able to.

(Third Embodiment)
As illustrated in FIG. 8, the washing machine 10 of the present embodiment further includes a water amount adjusting unit 50 in the washing machine 10 illustrated in the first embodiment. The water amount adjusting portion 50 is provided at the base end portion of the rib 40, that is, the end portion connected to the circulating water inflow portion 14c. The water amount adjusting portion 50 has a configuration in which a rotating piece portion 50a is provided so as to be rotatable in the directions of arrows A1 and A2 around a rotating shaft 50b. The water amount adjusting unit 50 may be configured to rotate the rotating piece portion 50a by a drive unit (not shown) composed of, for example, a motor, or the rotating piece unit 50 may be manually rotated by, for example, a user or a manufacturer of the washing machine 10. It may be configured to rotate 50a.

By rotating the rotating piece 50a toward the arrow A1 side, which is the circulation path 41a side for the most upstream injection port, the inflow amount of the circulating water W into the circulation path 41a for the most upstream injection port is reduced, and the most downstream injection is performed. The amount of circulating water W flowing into the oral circulation passage 41b can be increased. On the other hand, by rotating the rotating piece 50a toward the arrow A2 side, which is the circulation path 41b side for the most downstream injection port, the inflow amount of the circulating water W into the circulation path 41b for the most downstream injection port is reduced, and the maximum amount is reduced. The inflow amount of the circulating water W into the circulation path 41a for the upstream injection port can be increased. That is, by adjusting the rotation position of the rotating piece portion 50a, the water amount adjusting unit 50 adjusts the inflow amount of the circulating water W into the circulation path 41a for the most upstream injection port and the circulation path 41b for the most downstream injection port. The inflow amount of the circulating water W can be adjusted.

According to the washing machine 10 according to the present embodiment, the amount of circulating water supplied to the circulation path 41a for the most upstream injection port, that is, the injection injected from the injection port 18B, is performed by adjusting the rotation position of the rotating piece portion 50a. The amount of water and the amount of circulating water supplied to the most downstream injection port circulation path 41b, that is, the amount of injected water injected from the injection port 18A can be adjusted.

Here, if the washing machine 10 has a configuration in which the directions of the tips of the injection ports 18A and 18B are different from each other, that is, for example, one of the injection ports 18A and 18B is the lower front part inside the water tank 14, and the other. Is configured to be directed toward the rear lower part in the water tank 14, the amount of jet water injected into the front lower part inside the water tank 14 and the rear lower part inside the water tank 14 by adjusting the rotation position of the rotating piece 50a. The amount of jet water injected into the can be made different.

Therefore, the washing machine 10 may be configured so that the amount of water injected from the injection ports 18A and 18B is different depending on, for example, the content of the process to be executed. That is, for example, in a normal washing process in which the drum 20 is rotated at a predetermined rotation speed for normal washing, for example, 50 to 60 rpm, the laundry in the rotating drum 20 tends to be biased toward the lower rear part of the drum 20. is there. Therefore, in the normal washing process, the rotation position of the rotating piece portion 50a is adjusted so that the amount of inflow into the circulation path for the injection port for injecting the circulating water into the lower rear part inside the water tank 14 is increased, and the water tank 14 is used. It is advisable to increase the amount of water jetted to the lower rear part of the interior.

Further, for example, in the centrifugal washing process in which the drum 20 is rotated at a predetermined rotational speed for centrifugal washing, for example, 100 rpm, the laundry in the rotating drum 20 is subjected to the centrifugal action to cause a wide range of the inner wall surface of the drum 20. Tends to stick over. Therefore, in the centrifugal washing process, the amount of inflow into the circulation path for the injection port for injecting the circulating water to the rear lower part inside the water tank 14 and the circulation water for the injection port for injecting the circulating water to the front lower part inside the water tank 14 It is preferable to adjust the rotation position of the rotating piece portion 50a so that the inflow amount is uniform so that the water is evenly sprayed to the lower rear portion and the lower front portion inside the water tank 14.

(Fourth Embodiment)
As illustrated in FIG. 9, the washing machine 10 of the present embodiment further includes a water amount adjusting unit 60 in the washing machine 10 illustrated in the second embodiment. The water amount adjusting portion 60 is provided at a base end portion of the partition wall portion 19Bb of the water injection cover 19B, that is, an end portion connected to the circulating water inflow portion 14c. The water amount adjusting portion 60 has a configuration in which a rotating piece portion 60a is provided so as to be rotatable in the directions of arrows B1 and B2 around a rotating shaft 60b. The water amount adjusting unit 60 may be configured to rotate the rotating piece 60a by a drive unit (not shown) composed of, for example, a motor, or the rotating piece unit may be manually rotated by, for example, a user or a manufacturer of the washing machine 10. It may be configured to rotate 60a.

By rotating the rotating piece portion 60a toward the arrow B1 side, which is the circulation path 141a side for the most upstream injection port, the inflow amount of the circulating water W into the circulation path 141a for the most upstream injection port is reduced, and the most downstream injection is performed. The amount of circulating water W flowing into the oral circulation path 141b can be increased. On the other hand, by rotating the rotating piece portion 60a toward the arrow B2 side, which is the circulation path 141b side for the most downstream injection port, the inflow amount of the circulating water W into the circulation path 141b for the most downstream injection port is reduced, and the maximum amount is reduced. The inflow amount of the circulating water W into the circulation path 141a for the upstream injection port can be increased. That is, by adjusting the rotation position of the rotating piece portion 60a, the water amount adjusting unit 60 adjusts the inflow amount of the circulating water W into the circulation path 141a for the most upstream injection port and the circulation path 141b for the most downstream injection port. The inflow amount of the circulating water W can be adjusted.

According to the washing machine 10 according to the present embodiment, the amount of circulating water supplied to the circulation path 141a for the most upstream injection port, that is, the injection injected from the injection port 18B, by adjusting the rotation position of the rotating piece portion 60a. The amount of water and the amount of circulating water supplied to the most downstream injection port circulation path 141b, that is, the amount of injected water injected from the injection port 18A can be adjusted.

Further, by making the directivity directions of the injection ports 18A and 18B different from each other and appropriately adjusting the rotation position of the rotating piece portion 60a, the amount of water injected from the injection ports 18A and 18B and the injection position inside the water tank 14 Can be set to, for example, the amount of jet water and the injection position suitable for the content of the stroke to be executed.

(Other embodiments)
The present embodiment is not limited to the plurality of embodiments described above, and can be modified or extended as follows, for example. For example, the washing machine may be configured by appropriately combining the plurality of embodiments described above. Further, the number of injection ports is not limited to two, and may be, for example, three or more. In this case, a plurality of partition portions may be provided in the circulation path to form a circulation path connected to each injection port.

Further, the directivity directions of the tips of the plurality of injection ports may be the same as each other or may be different from each other. Further, the partition portion is not limited to a configuration extending to the connection portion between the external circulation path and the internal circulation path, but a configuration extending halfway through the internal circulation path, that is, a configuration in which the partition portion does not reach the connection portion. May be.

According to the drum-type washing machine according to the plurality of embodiments exemplified above, the partition portion is from the most upstream injection port provided in the circulation path among the plurality of injection ports toward the upstream side in the circulation path. Circulation for the most upstream injection port, which extends and connects to the most upstream injection port, and the circulation for the non-upstream injection port, which is an injection port other than the most upstream injection port, in the circulation path. Partition with the road. According to this configuration, in a configuration in which a plurality of injection ports are provided in a circulation path for circulating water in a water tank, the plurality of injection ports are connected to each other without providing a "branch portion" which has been a problem in the conventional configuration. A dedicated circulation path can be formed. Therefore, it is possible to avoid the occurrence of water pressure loss at the branch portion, and it is possible to prevent foreign matter from accumulating at the branch portion.

It should be noted that this embodiment is presented as an example, and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. The present embodiment and its modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and the equivalent scope thereof.

In the drawing, 10 is a drum-type washing machine, 14 is a water tank, 14c is a circulating water inflow part (connection part between the external circulation path and the internal circulation path), and 18A is an injection port (non-upstream injection port, most downstream injection port). , 18B is an injection port (upstream injection port), 19Bb is a partition wall surface (partition), 32R is a circulation path, 32R is an external circulation path, 32Rb is an internal circulation path, 40 is a rib (partition), 41a, 141a are The most upstream injection port circulation path, 41b and 141b indicate the most downstream injection port circulation path (non-upstream injection port circulation path), and 50 and 60 indicate a water amount adjusting unit.

Claims (5)

With a water tank
A circulation path for circulating water in the aquarium,
A plurality of injection ports provided in the circulation path to inject water into the water tank,
Of the plurality of injection ports, the most upstream injection port provided in the circulation path extends in the circulation path toward the upstream side, and the inside of the circulation path is connected to the most upstream injection port. A partition portion for partitioning the circulation path for the upstream injection port and the circulation path for the non-upstream injection port connected to the non-upstream injection port which is an injection port other than the uppermost flow injection port.
Equipped with a,
The partition portion is a drum-type washing machine in which the circulation path for the most upstream injection port and the circulation path for the non-upstream injection port are formed as independent circulation paths. The drum-type washing machine according to claim 1, wherein the partition portion is along the axial direction of the water tank. The drum-type washing machine according to claim 1, wherein the partition portion is along the radial direction of the water tank. The circulation path has an external circulation path provided outside the water tank and an internal circulation path provided inside the water tank.
The partition portion corresponds to any one of claims 1 to 3 extending from the uppermost flow injection port toward the upstream side in the internal circulation path to the connecting portion between the external circulation path and the internal circulation path. The drum type washing machine described. The drum type according to any one of claims 1 to 4, further comprising a water amount adjusting unit for adjusting the amount of water flowing into the circulation path for the most upstream injection port and the amount of water flowing into the circulation path for the non-upstream injection port. Washing machine.

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