WO2021218427A1

WO2021218427A1 - Washing machine

Info

Publication number: WO2021218427A1
Application number: PCT/CN2021/080107
Authority: WO
Inventors: 吉田由佳; 伊藤弓恵; 中村哲; 本田雅夫
Original assignee: 青岛海尔洗衣机有限公司; Aqua株式会社; 海尔智家股份有限公司
Priority date: 2020-04-28
Filing date: 2021-03-11
Publication date: 2021-11-04
Also published as: CN115461506A; JP2021171503A

Abstract

A washing machine (1), in which detergent or softener is dispensed, along with water from a water supply passage (12), to a water injection unit (11) in a washing tub (4). The water injection unit (11) comprises a box (30) and a container (31) accommodated in the box (30). The box (30) is provided with a dispensing opening (30C) facing the interior of the washing tub (4) in an upper side (Z1), and a bottom wall (39) extending in an oblique downward side and connected to the dispensing opening (30C). The container (31) is provided with: a detergent dispensing portion (15); a softener dispensing portion (16) provided parallel to the detergent dispensing portion (15) in a lateral direction; a dividing rib (51) provided between the detergent dispensing portion (15) and the softener dispensing portion (16); and a discharge groove (52) provided between the dividing rib (51) and the softener dispensing portion (16). The discharge groove (52) is provided with: a groove bottom (52A) extending towards the dispensing opening (30C) in an oblique downward side; and a discharge hole (52F) provided at a front end portion (52C) of the dispensing opening (30C) side in the groove bottom (52A) and facing towards the bottom wall (39) of the box (30) in the upper side (Z1).

Description

washing machine

Technical field

The invention relates to a washing machine.

Background technique

The washing machine described in Patent Document 1 below includes a washing and dehydrating tub and a water supply device for putting detergent and the like into the washing and dehydrating tub together with water. The water supply device includes a detergent container and a device main body that holds the detergent container in a drawable manner. The detergent container includes a tray portion that is divided into a powder detergent storage portion, a liquid detergent storage portion, and a care agent storage portion in a side-by-side manner. The main body of the device includes a box containing a detergent container and a sprinkling chamber mounted on the upper inner side of the box. During the washing process of the washing machine, water is sprayed from the sprinkler chamber to the powder detergent storage section and the liquid detergent storage section. In the case where the powder detergent is stored in the powder detergent storage portion, the powder detergent in the powder detergent storage portion flows out of the detergent container along with water and is supplied into the washing and dehydrating tub. In the case where the liquid detergent is contained in the liquid detergent storage portion, the liquid detergent in the liquid detergent storage portion flows out of the detergent container along with water and is supplied into the washing and dehydrating tub. In the final rinsing process after the washing process, by sprinkling water from the sprinkling chamber to the care agent accommodating part, the care agent in the care agent accommodating part flows out of the detergent container along with the water and is supplied into the washing and dehydrating tub.

Since the detergent container of the washing machine of Patent Document 1 is provided with three storage parts corresponding to the powder detergent, the liquid detergent, and the care agent, it is likely to increase in size. Conversely, if the detergent container is downsized, there is a possibility that the water in the storage portion spilled from the sprinkler may overflow to the adjacent storage portion. For example, if the water in the powder detergent container overflows to the care agent container when water is sprayed on the powder detergent container during the cleaning process, it will cause the care agent, that is, the softener in the care agent container, to flow out. In the timing final rinsing process where the softener should be used, since there is no softener, it is impossible to supply the softener into the washing and dewatering tank.

Prior art literature

Patent literature

Patent Document 1: Japanese Patent Application Publication No. 2000-342894

Summary of the invention

The problem to be solved by the invention

The present invention was completed based on this background, and its purpose is to provide a washing machine that can prevent the detergent or softener from being dropped before the original use timing in a structure that allows detergent or softener to be poured into the washing tub along with water. Exhausted.

Solutions used to solve the problem

The present invention is a washing machine, comprising: a washing tub for containing laundry; a water supply path for supplying water to the washing tub; and a water injection unit for putting detergent or softener together with the water from the water supply path Into the washing tub, the water injection unit includes a box and a container. The bottom wall connected to the injection port, the container is housed in the box in a manner that can be withdrawn from the box, and the container has: a detergent injection portion, which contains detergent, and is supplied with water from the water supply channel The softener injection part, which is arranged side by side with the detergent injection part, contains the softener, and is supplied with water from the water supply channel; the partition ribs are arranged in the detergent injection part and the softener injection part Between, extending in the depth direction; and a drain groove, arranged between the partition rib and the softener injection portion, extending in the depth direction, the detergent injection portion having: a first bottom wall , A first through hole is formed from the upper side to the bottom wall; and a first pipe portion protruding upward in a state surrounding the first through hole in the detergent injection portion, the softener injection portion It has: a second bottom wall formed with a second through hole from the upper side to the bottom wall; and a second pipe part protruding upward in a state of surrounding the second through hole in the softener injection part, The relief groove has: a groove bottom, which extends obliquely downward toward the injection port; and a relief hole, which is provided at the end of the groove bottom on the injection port side, from the upper side to the bottom wall .

In addition, the present invention is characterized in that the depth direction includes a back side away from the injection port and a front side close to the injection port, and the end of the back side in the groove bottom is arranged higher than the first The through hole is closer to the back side, and the front end of the groove bottom is arranged closer to the front side than the first through hole.

In addition, the present invention is characterized in that the first through hole is arranged closer to the inner side than the center of the first bottom wall in the depth direction, and the second through hole is arranged in the depth direction At the back side than the center of the second bottom wall, the portion of the first bottom wall closer to the front side than the first through hole extends obliquely upward as it goes to the front side A part of the second bottom wall closer to the front side than the second through hole extends obliquely upward as it approaches the front side.

In addition, the present invention is characterized in that a drain hole that is open to both the upper side and the lower side is provided between the softener injection portion and the partition rib, and the drain groove has an inclined plate that constitutes the groove bottom, and The water injection unit further includes a sprinkler, the sprinkler has a sprinkler, receives water from the water supply channel and sprinkles water into the container from the sprinkler, the sprinkler has: a first sprinkler, and is configured It is directly above the detergent injection part; the second sprinkler is arranged directly above the softener injection part; and the third sprinkler is arranged directly above the water discharge hole.

In addition, the present invention is characterized in that the lower surface portion of the second bottom wall is provided with a rectifying rib in a region closer to the detergent injection portion side than the second through hole, and the rectifying rib follows from The back side extends toward the front side and is close to the detergent injection portion.

Invention effect

According to the present invention, the container contained in the box in the water injection unit of the washing machine includes a detergent injection part and a softener injection part arranged in a laterally parallel manner. The user can withdraw the container from the box, and store the detergent in the detergent injection part or the softener in the softener injection part. In the washing process of the washing machine, water from the water supply channel is supplied to the detergent injection part, and thereby the water level in the detergent injection part rises. When the water level in the detergent injection portion rises to the upper end of the first pipe portion, the detergent in the detergent injection portion along with the water passes through the inner space of the first pipe portion and the first through hole, and then falls onto the bottom wall of the box. It flows down to the dispensing opening of the box along the slope of the bottom wall, and is thrown into the washing tub from the dispensing opening. In the rinsing process after the washing process, water from the water supply channel is supplied to the softener injection part, and thereby the water level in the softener injection part rises. When the water level in the softener injection part rises to the upper end of the second tube part, the softener in the softener injection part will drop onto the bottom wall of the box along with the water through the internal space of the second tube part and the second through hole. It flows down to the dispensing opening of the box along the slope of the bottom wall, and is thrown into the washing tub from the dispensing opening.

The partition rib is arranged between the detergent injection part and the softener injection part, so the water that overflows from the detergent injection part and will reach the softener injection part during the cleaning process will be blocked by the partition rib. Furthermore, the drain groove is arranged between the partition rib and the softener injection part, so even if the water overflowing from the detergent injection part passes over the partition rib, the water will be contained in the drain groove. The water contained in the drain slot flows along the slope of the bottom of the drain slot to the drain hole and from the drain hole to the bottom wall of the box, flows down the slope of the bottom wall to the injection port, and from the injection port It is put into the washing tub. According to the above, it is difficult for the water in the detergent injection part to reach the softener injection part. Therefore, it is possible to prevent the softener in the softener injection part from being used up before the rinsing process at the original use timing.

In addition, according to the present invention, in the depth direction of the box, the inner end of the bottom of the drain groove is arranged on the inner side than the first through hole of the detergent injection portion, and the end on the front side of the groove bottom is arranged It is closer to the front side than the first through hole. Thereby, the drain tank can accommodate the water overflowing from the detergent injection part and crossing the partition rib over a wide range in the depth direction. Therefore, it is more difficult for the water in the detergent injection part to reach the softener injection part, and therefore it is possible to further prevent the softener in the softener injection part from being exhausted before the original use timing.

In addition, according to the present invention, in the first bottom wall of the detergent dispensing portion where the first through-hole is formed so as to be biased to the back side, the portion closer to the front side than the first through-hole is inclined to the upper side as it goes to the front side extend. Similarly, in the second bottom wall where the second through hole is formed in the softening agent injection portion to be biased to the back side, the portion closer to the front side than the second through hole extends obliquely upward as it goes to the front side. Thereby, between the portions on the front side of each of the first bottom wall and the second bottom wall and the bottom wall, a space that expands in the vertical direction as it goes to the front side is ensured. Therefore, the water from the detergent dispenser and the softener dispenser to the bottom wall of the box can flow smoothly in the space and be supplied into the washing tub from the dispenser port.

In addition, according to the present invention, the drain hole is arranged between the detergent injection portion and the partition rib, so even if the water overflowing from the detergent injection portion is going to the partition rib, the water will fall from the drain hole onto the bottom wall of the box. It flows down to the discharge port along the slope of the bottom wall, and is discharged into the washing tub from the discharge port. In addition, since the lower side of the inclined plate that constitutes the bottom of the drain groove is secured with a flow path leading the water to the side of the injection port, even if the water falling from the drain hole to the bottom wall of the box fills the inner side of the box The area can also prevent the water from entering the softener injection part from the inner side. According to the above, it is difficult for the water in the detergent injection part to reach the softener injection part. Therefore, it is possible to further prevent the softener in the softener injection part from being exhausted before the original use timing.

In addition, the sprinkler that receives water from the water supply channel sprinkles water from the first sprinkler to the detergent injection part, and from the second sprinkler to the softener injection part. Sprinkle water on the detergent dispenser and the softener dispenser, and spray water directly on the drain hole. In other words, the sprinkler part discharges excess water from the water received from the water supply channel to the drain hole, so that the water in the detergent injection part can be prevented from overflowing to the softener injection part. Therefore, it is more difficult for the water in the detergent injection part to reach the softener injection part, and therefore it is possible to further prevent the softener in the softener injection part from being exhausted before the original use timing.

In addition, according to the present invention, the rectifying ribs provided in the lower surface portion of the second bottom wall that is closer to the detergent dispenser side than the second through hole will flow down from the drain hole between the detergent dispenser and the partition ribs. The water on the bottom wall of the box is directed to the detergent injection portion side, that is, the center side of the container, so that the water can smoothly merge with other water flowing on the bottom wall.

Description of the drawings

Fig. 1 is a schematic vertical cross-sectional right side view of a washing machine according to an embodiment of the present invention.

Fig. 2 is a perspective view of a water injection unit included in the washing machine.

Fig. 3 is a perspective view of a container included in the water injection unit.

Fig. 4 is a perspective view of the container in a state where some parts are removed.

Fig. 5 is a perspective view of the container viewed from the lower side.

Figure 6 is a top view of the container.

Fig. 7 is a cross-sectional view taken along the line AA in Fig. 6.

Fig. 8 is a plan view of the water injection unit in a state where a part of the components has been removed.

Fig. 9 is a partial perspective view of a sprinkler included in the water injection unit.

Fig. 10 is a plan view of the water injection unit.

Fig. 11 is a cross-sectional view taken along the line BB of Fig. 10.

Fig. 12 is a cross-sectional view taken along the line CC in Fig. 10.

Fig. 13 is a cross-sectional view taken along the line DD in Fig. 10.

Fig. 14 is a cross-sectional view taken along the line EE in Fig. 10.

Description of Reference Signs

1: washing machine; 4: washing tub; 11: water injection unit; 12: water supply path; 15: detergent injection part; 15B: first pipe part; 16: softener injection part; 16B: second pipe part; 30: box ; 30A: opening; 31: container; 32: sprinkler part; 39: bottom wall; 51: partition rib; 52: discharge groove; 52A: groove bottom; 52B: rear end; 52C: front end; 52F: discharge Hole; 55: first bottom wall; 55A: first through hole; 55C: part on the front side; 65: second bottom wall; 65A: second through hole; 65C: part on the front side; 71: rectifying rib; : Drain hole; 77: inclined plate; 83: sprinkler; 83A: first sprinkler; 83B: second sprinkler; 83C: third sprinkler; C1: center of first bottom wall 55; C2: second bottom Center of wall 65; Q: laundry; Y: front and rear direction; Y1: front side; Y2: rear side; Z1: upper side; Z2: lower side.

Detailed ways

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Fig. 1 is a schematic vertical cross-sectional right view of a washing machine 1 according to an embodiment of the present invention. The direction orthogonal to the surface of the paper in FIG. 1 is called the left-right direction X of the washing machine 1, the left-right direction in FIG. 1 is called the front-rear direction Y of the washing machine 1, and the up-down direction in FIG. 1 is called the up-down direction of the washing machine 1. Z. In the left-right direction X, the back side of the paper surface of FIG. 1 is referred to as the left side X1, and the front side of the paper surface of FIG. 1 is referred to as the right side X2. In the front-rear direction Y, the left side is referred to as the front side Y1, and the right side is referred to as the rear side Y2. In the vertical direction Z, the upper side is referred to as the upper side Z1, and the lower side is referred to as the lower side Z2. The left-right direction X and the front-rear direction Y coincide with the horizontal direction H, and the vertical direction Z coincides with the vertical direction V.

The washing machine 1 also includes an integrated washer-dryer with a drying function. However, the washing machine 1 will be described below with an example of a washing machine that omits the drying function and performs only the washing operation. The washing machine 1 includes: a cabinet 2; an outer tub 3, which is contained in the cabinet 2, a washing tub 4, which is contained in the outer tub 3; a rotating wing 5, which is contained in the washing tub 4; 4. The driving force for the rotation of the rotary wing 5; and the transmission mechanism 7, which switches the transmission destination of the driving force generated by the motor 6.

The box body 2 is made of metal, for example, and is formed in a box shape. The upper surface 2A of the box body 2 is formed obliquely with respect to the horizontal direction H so as to extend to the upper side Z1 as it approaches the rear side Y2, for example. The upper surface 2A is formed with an opening 2B through which the inside and the outside of the box 2 communicate. A door 9 that opens and closes the opening 2B is provided on the upper surface 2A. In the upper surface 2A, a region on the front side Y1 of the opening 2B is provided with a display operation unit 10 composed of, for example, a touch panel or the like. The user can freely select washing conditions or instruct the washing machine 1 to start and stop the operation by operating the display operation unit 10. In the display operation unit 10, information related to the washing operation is displayed in a visually visible manner.

The outer tub 3 is made of resin, for example, and is formed in a cylindrical shape with a bottom. The outer barrel 3 has: a substantially cylindrical circumferential wall 3A, which is arranged in the vertical direction Z; a bottom wall 3B, which blocks the hollow portion of the circumferential wall 3A from the lower side Z2; The end edge of the upper side Z1 of 3A is encapsulated, and one side protrudes toward the center of the circumferential wall 3A. An opening 3D is formed inside the annular wall 3C. The opening 3D is arranged directly below the opening 2B of the box 2. The hollow part of the circumferential wall 3A is exposed to the upper side Z1 from the opening 3D. The bottom wall 3B is formed in a circular plate shape extending in the horizontal direction H, and a through hole 3E penetrating the bottom wall 3B is formed at a center position of the bottom wall 3B.

The washing machine 1 further includes: a water injection unit 11 for separately containing detergent and softener; a water supply path 12 connecting a faucet (not shown) with the water injection unit 11; and a bath water pump 14 connected to a hose 13 immersed in the bath water. The water injection unit 11 is arranged on the upper side Z1 of the outer tub 3 in the box 2 on the rear side Y2 of the opening 3D of the outer tub 3. The water injection unit 11 includes a detergent injection unit 15 that stores detergent and a softener injection unit 16 that stores softener. The detergent injection part 15 and the softening agent injection part 16 are arrange|positioned so that it may be side-by-side along the left-right direction X. The water supply road 12 branches into a first branch road 12A and a second branch road 12B, and the first branch road 12A and the second branch road 12B are respectively connected to the water injection unit 11. The first branch circuit 12A is provided with a first water supply valve 17 that can be opened and closed, and the second branch circuit 12B is provided with a second water supply valve 18 that can be opened and closed.

When the first water supply valve 17 is opened when the second water supply valve 18 is closed, the tap water from the faucet flows through the first branch 12A and flows into the detergent injection part 15 and then takes the washing in the detergent injection part 15 The agent is supplied into the outer tub 3 together. When there is no detergent in the detergent injection portion 15, only tap water is supplied into the outer tub 3. When the second water supply valve 18 is opened when the first water supply valve 17 is closed, the tap water from the faucet flows through the second branch 12B and flows into the softener injection part 16 and then takes the softener in the softener injection part 16 The agent is supplied into the outer tub 3 together. In the case where there is no softener in the softener injection portion 16, only tap water is supplied into the outer tub 3.

The bath water pump 14 is connected to the water injection unit 11 via the bath water supply path 19. The bath water pump 14 is driven to suck up bath water and flow it into the detergent injection part 15. Thereby, bath water is supplied into the outer tub 3 through the detergent injection part 15. The dotted arrow in FIG. 1 indicates the tap water and bath water supplied from the water injection unit 11 into the outer tub 3. The water injection unit 11, the water supply path 12, and the bath water pump 14 will be described in detail later.

The outer tub 3 is connected to a drainage passage 20 from the lower side Z2, and the water in the outer tub 3 is discharged from the drainage passage 20 to the outside of the machine. A drain valve 21 that is opened and closed in order to start or stop draining is provided in the middle of the drain passage 20. When the drain valve 21 is closed, the first water supply valve 17 or the second water supply valve 18 is opened, or the bath water pump 14 is driven, the water from the water injection unit 11 is supplied and stored in the outer tub 3.

The washing tub 4 is, for example, made of metal, has a central axis J extending in the vertical direction Z, is formed in a cylindrical shape with a bottom that is slightly smaller than the outer tub 3, and can accommodate laundry Q inside. The washing tub 4 has a substantially cylindrical circumferential wall 4A arranged in the vertical direction Z, and a bottom wall 4C that blocks the hollow portion of the circumferential wall 4A from the lower side Z2.

The inner peripheral surface of the circumferential wall 4A is the inner peripheral surface of the washing tub 4. The upper end of the inner peripheral surface of the circumferential wall 4A is an entrance 4B that exposes the hollow portion of the circumferential wall 4A to the upper side Z1. The entrance 4B is in a state of communicating with the opening 3D of the annular wall 3C of the tub 3 and the opening 2B of the box 2 from the lower side Z2. The user of the washing machine 1 opens the door 9 to open the opening 2B, the opening 3D, and the entrance and exit 4B, and takes the laundry Q into the washing tub 4 through the opening 2B, the opening 3D, and the entrance and exit 4B.

The washing tub 4 is coaxially accommodated in the outer tub 3 and is arranged along the vertical direction Z. The washing tub 4 in the state housed in the outer tub 3 can rotate around the central axis J. A plurality of through holes (not shown) are formed in the circumferential wall 4A and the bottom wall 4C of the washing tub 4, and the water in the outer tub 3 can pass between the outer tub 3 and the washing tub 4 through the through holes. Therefore, the water level in the outer tub 3 is consistent with the water level in the washing tub 4. In addition, the water from the water injection unit 11 falls through the inlet and outlet 4B of the washing tub 4 and is thereby directly supplied into the washing tub 4 from the upper side Z1.

The bottom wall 4C of the washing tub 4 is formed in the shape of a circular plate extending substantially parallel to the bottom wall 3B of the outer tub 3 at an interval on the upper side Z1. The through hole 4D of the bottom wall 4C. The bottom wall 4C is provided with a tubular support shaft 22 that surrounds the through hole 4D and extends along the central axis J to the lower side Z2. The support shaft 22 is inserted into the through hole 3E of the bottom wall 3B of the outer tub 3, and the lower end of the support shaft 22 is located on the lower side Z2 of the bottom wall 3B.

The rotating blade 5 is a so-called pulsator, formed in a disk shape centered on the central axis J, and is arranged in the washing tub 4 concentrically with the washing tub 4 along the bottom wall 4C. A plurality of blades 5A arranged radially are provided on the upper surface of the rotary wing 5 facing the inlet and outlet 4B of the washing tub 4 from the lower side Z2. The rotating blade 5 is provided with a rotating shaft 23 extending from its center along the central axis J to the lower side Z2. The rotating shaft 23 is inserted into the hollow portion of the supporting shaft 22, and the lower end of the rotating shaft 23 is located on the lower side Z2 of the bottom wall 3B of the outer tub 3.

The motor 6 is arranged on the lower side Z2 of the tub 3 in the case 2. The motor 6 has an output shaft 24 that rotates around the center axis J. The transmission mechanism 7 is interposed between the lower end of each of the support shaft 22 and the rotating shaft 23 and the upper end of the output shaft 24. The transmission mechanism 7 selectively transmits the driving force output by the motor 6 from the output shaft 24 to one or both of the support shaft 22 and the rotation shaft 23. The transmission mechanism 7 can use a known clutch or the like.

When the driving force from the motor 6 is transmitted to the support shaft 22, the washing tub 4 rotates about the center axis J. When the driving force from the motor 6 is transmitted to the rotating shaft 23, the rotating wing 5 rotates about the center axis J. The rotation direction of the output shaft 24 of the motor 6 is variable. Therefore, the washing tub 4 and the rotating wing 5 can each rotate not only in one direction, but also in the other direction opposite to the one direction.

The washing machine 1 further includes a control unit 25 composed of a microcomputer or the like. The control unit 25 performs the washing operation by controlling the actions of the motor 6, the transmission mechanism 7, the bath water pump 14, the first water supply valve 17, the second water supply valve 18, and the drain valve 21. The washing operation includes a washing process of washing the laundry Q in the washing tub 4, a rinsing process of rinsing the laundry Q after the washing process, and a dehydration process of dehydrating the laundry Q after the rinsing process. The rinsing process can be performed multiple times, and the final rinsing process is called the final rinsing process. The dehydration process includes an intermediate dehydration process performed immediately after a washing process, a rinsing process, and a final dehydration process performed at the end of the washing operation.

In the washing process, the control unit 25 first supplies water into the washing tub 4 by opening the first water supply valve 17 for a predetermined time with the drain valve 21 closed. Thereby, the detergent in the detergent injection part 15 is supplied into the washing tub 4 along with the tap water from the water supply channel 12. At this time, the control unit 25 may supply bath water into the washing tub 4 by driving the bath water pump 14. When the water level in the washing tub 4 rises to a predetermined water level, the control unit 25 controls the motor 6 and the transmission mechanism 7 to rotate the rotary wing 5 after stopping the water supply. As a result, the laundry Q in the washing tub 4 is agitated or decontaminated by detergent, thereby being washed. Finally, the control unit 25 drains the washing tub 4 by opening the drain valve 21.

During the rinsing process, the control unit 25 first stores the tap water in the washing tub 4 by opening the first water supply valve 17 for a predetermined time with the drain valve 21 closed. It should be noted that in the final rinsing process, the control unit 25 opens the second water supply valve 18 instead of the first water supply valve 17 for a predetermined time, thereby storing the tap water in which the softener is dissolved in the washing tub 4. Next, the control unit 25 controls the motor 6 and the transmission mechanism 7 to rotate the rotor blade 5. As a result, the laundry Q in the washing tub 4 is rinsed, and the softener penetrates into the laundry Q. Finally, the control unit 25 drains the washing tub 4.

During the dehydration process, the control unit 25 controls the motor 6 and the transmission mechanism 7 to rotate the washing tub 4 at a predetermined dehydration rotation speed with the drain valve 21 opened. As a result, the laundry Q in the washing tub 4 is dehydrated by centrifugal force. It should be noted that in the intermediate dehydration process and the final dehydration process, the operating conditions may be different. As an example, the dehydration speed of the final dehydration process may be higher than the dehydration speed of the intermediate dehydration process.

Next, the water injection unit 11 will be described in detail. FIG. 2 is a perspective view of the water injection unit 11. The water injection unit 11 includes: a box 30, which forms the housing of the water injection unit 11; a container 31, which contains detergent and softener; Sprinkle water inside.

The box 30 is formed in a box shape that is slightly flat in the vertical direction Z. The depth direction of the cartridge 30 in this embodiment is the front-rear direction Y, but the left-right direction X may be a configuration in which the depth direction of the cartridge 30 is used. The box 30 has: a left wall 35; a right wall 36; a rear wall 37, erected between the rear ends of the left wall 35 and the right wall 36; a top wall 38 erected between the upper ends of the left wall 35 and the right wall 36, and It is connected to the upper end of the rear wall 37; and the bottom wall 39 is erected between the lower ends of the left wall 35 and the right wall 36, and is also connected to the lower end of the rear wall 37. The left wall 35 and the right wall 36 are plates extending in the front-rear direction Y and the up-down direction Z, and are arranged parallel to each other. The rear wall 37 is a plate extending in the left-right direction X and the up-down direction Z.

The top wall 38 is a substantially rectangular plate extending in the horizontal direction H. The four corners of the top wall 38 are provided with flange-shaped brackets 40 for fixing the box 30 to the box 2. A first connecting piece 41, a second connecting piece 42, a third connecting piece 43 and a fourth connecting piece 44 are provided on the upper surface of the top wall 38.

The first connector 41 has a tubular shape extending in the left-right direction X and is arranged in the right area of the top wall 38. The left end of the first connector 41 is arranged at the approximate center of the top wall 38 in a plan view. A first through hole 38A penetrating the top wall 38 in the vertical direction Z is formed at a position directly below the left end of the first connector 41 in the top wall 38. The first through hole 38A is in a state of communicating with the internal space of the first connector 41 from the lower side Z2. The first branch 12A of the water supply channel 12 is connected to the right end of the first connector 41.

The second link 42 has a tubular shape extending in the left-right direction X, is shorter than the first link 41, and is arranged so as to be adjacent to the right end of the first link 41 from the rear side Y2. A second through hole 38B penetrating the top wall 38 in the vertical direction Z is formed at a position directly below the left end of the second connector 42 in the top wall 38. The second through hole 38B is in a state of communicating with the internal space of the second connector 42 from the lower side Z2. The second branch 12B of the water supply channel 12 is connected to the right end of the second connector 42.

The third connector 43 has a tubular shape extending in the left-right direction X, and is arranged in the left area of the top wall 38. The third connecting piece 43 is arranged at the approximate center of the top wall 38 in the front-rear direction Y in the same manner as the first connecting piece 41, and is arranged side by side on the left side X1 of the first connecting piece 41. As shown in FIG. A third through hole 38C penetrating the top wall 38 in the vertical direction Z is formed at a position directly below the right end of the third link 43 in the top wall 38. The third through hole 38C is in a state of communicating with the internal space of the third connector 43 from the lower side Z2. The bath water supply path 19 is connected to the left end of the third connector 43.

The fourth connector 44 has a tubular shape extending obliquely from the left end of the first connector 41 to the left side X1 and to the rear side Y2, and is arranged in the rear area of the top wall 38. The internal space of the fourth connector 44 is in a state of communicating with the internal space of the first connector 41 from the rear side Y2. The rear end of the fourth connector 44 is connected to the bath water pump 14 via a relay path 45.

The bottom wall 39 is a plate extending obliquely with respect to the horizontal direction H. Specifically, the bottom wall 39 extends so as to descend toward the front side Y1. The box 30 is formed with an opening 30A bounded by the respective front ends of the left wall 35, the right wall 36, the top wall 38, and the bottom wall 39. The opening 30A has a rectangular shape that is long in the left-right direction X. The space surrounded by the left wall 35, the right wall 36, the rear wall 37, the top wall 38, and the bottom wall 39 is the internal space 30B of the box 30, and the internal space 30B is exposed from the opening 30A to the front side Y1.

The lower end of the opening 30A is referred to as an injection port 30C. The bottom wall 39 is in a state where it extends diagonally downward in the front-rear direction Y and is connected to the injection port 30C (see also FIG. 12 described later). The rear end of the inlet 30C is bounded by the front end of the bottom wall 39. The inlet 30C has a slit shape elongated in the left-right direction X, and faces the inside of the washing tub 4 from the upper side Z1 through the opening 3D of the outer tub 3 and the inlet and outlet 4B of the washing tub 4 (refer to FIG. 1). In the front-rear direction Y, the front side Y1 is the near side close to the injection port 30C, and the rear side Y2 is the back side away from the injection port 30C. The front side and the back side are directions based on the user located on the front side Y1 of the washing machine 1.

The container 31 is usually housed in the box 30, but it can be withdrawn from the box 30 to the front side Y1 through the opening 30A. Hereinafter, the description will be made on the premise that the container 31 is housed in the box 30. FIG. 3 is a perspective view of the container 31. The container 31 has: a handle 50 that is exposed to the front side Y1 from the opening 30A in a state of being housed in the box 30 (refer also to FIG. 2); the aforementioned detergent injection portion 15 and softener injection portion 16; and partition ribs 51 and The drain tank 52 is arranged between the detergent injection part 15 and the softener injection part 16.

The handle 50 has a laterally long plate shape having almost the same size as the opening 30A of the box 30, and the four corners of the handle 50 are rounded into an arc shape. The handle 50 is formed with a recess 50A (refer to FIG. 7 described later) that is recessed from the lower end to the upper side Z1. The user pulls out the container 31 by catching a finger in the recess 50A.

The detergent injection part 15 and the softener injection part 16 each have a tray shape, and are connected to the handle 50 from the back side Y2. The detergent injection part 15 is arranged on the left side X1 of the softener injection part 16. The detergent injection part 15 has the same size as the softener injection part 16 in the front-rear direction Y, but is about twice larger than the softener injection part 16 in the left-right direction X. The detergent injection part 15 is equipped with a first cover member 53, and the softener injection part 16 is equipped with a second cover member 54.

4 is a perspective view of the container 31 in a state where the first cover member 53 and the second cover member 54 are removed. The detergent injection portion 15 has: a first bottom wall 55, which is composed of a horizontal plate; a first left wall 56, which stands up from the left end of the first bottom wall 55 and extends in the front-rear direction Y; and a first right wall 57, which extends from the first The right end of a bottom wall 55 stands up and extends in the front-rear direction Y. The detergent injection part 15 also has: a first rear wall 58, which stands from the rear end of the first bottom wall 55 and is erected between the rear end of the first left wall 56 and the first right wall 57; and a first front wall 59. Stand up from the front end of the first bottom wall 55 and erect between the front end of the first left wall 56 and the first right wall 57. The space surrounded by the first bottom wall 55, the first left wall 56, the first right wall 57, the first rear wall 58, and the first front wall 59 is the internal space 15A of the detergent dispenser 15, and the internal space 15A is upward Z1 open.

The first bottom wall 55 is formed with a circular first through hole 55A penetrating the first bottom wall 55 in the vertical direction Z. The first through hole 55A is arranged on the rear side Y2 from the center C1 of the first bottom wall 55 in the front-rear direction Y. In other words, the first through hole 55A is arranged at a rear position in the first bottom wall 55. In the first bottom wall 55, the portion 55B that is closer to the rear side Y2 than the first through hole 55A extends substantially horizontally, and the portion 55C that is closer to the front side Y1 than the first through hole 55A extends diagonally upward as it approaches the front side Y1 (See also Figure 12).

The detergent injection portion 15 further has a circular tubular first pipe portion 15B that protrudes to the upper side Z1 in a state of surrounding the first through hole 55A in the detergent injection portion 15, that is, in the internal space 15A. The portion 55D around the first pipe portion 15B in the first bottom wall 55 is formed in a boss shape so as to slightly drop as it approaches the first pipe portion 15B (see also FIG. 12 ). The lower end of the first pipe portion 15B protrudes from the first bottom wall 55 to the lower side Z2, and constitutes the lower end of the first bottom wall 55 (see also FIG. 11 described later). The internal space of the first pipe portion 15B constitutes a first through hole 55A, and is open to both the upper side Z1 and the lower side Z2. A reinforcing rib 15C extending in the vertical direction Z and connected to the first bottom wall 55 is provided on the outer peripheral surface of the first pipe portion 15B.

The aforementioned first cover member 53 (refer to FIG. 3) is arranged in the detergent injection portion 15 and is attached to the first pipe portion 15B. The first cover member 53 has: a first top plate portion 53A that faces the upper end of the first pipe portion 15B from the upper side Z1 via a gap; and a cylindrical first tube portion 53B that extends from the first top plate portion 53A The central portion extends to the lower side Z2 and surrounds the first pipe portion 15B (refer to FIG. 12). The first top plate portion 53A is a substantially rectangular flat plate extending substantially horizontally. The lower end of the first cylindrical portion 53B is arranged to be away from the first bottom wall 55 to the upper side Z1.

A first guide rail 60 linearly extending in the front-rear direction Y is provided at the upper end of the first left wall 56. The rear end of the first rail 60 is arranged on the rear side Y2 than the first rear wall 58. The first front wall 59 extends obliquely to the upper front side. The first front wall 59 is connected to the handle 50 from the rear side Y2.

The softener injection portion 16 has: a second bottom wall 65 composed of a horizontal plate; a second left wall 66 rising from the left end of the second bottom wall 65 and extending in the front-rear direction Y; and a second right wall 67 extending from the first The right ends of the two bottom walls 65 stand up and extend in the front-rear direction Y. The softener injection portion 16 also has: a second rear wall 68, which stands up from the rear end of the second bottom wall 65 and is erected between the rear ends of the second left wall 66 and the second right wall 67; and a second front wall 69. Stand up from the front end of the second bottom wall 65 and erect between the front ends of the second left wall 66 and the second right wall 67. The space surrounded by the second bottom wall 65, the second left wall 66, the second right wall 67, the second rear wall 68, and the second front wall 69 is the internal space 16A of the softener injection portion 16, and the internal space 16A is upward Z1 open.

The second bottom wall 65 is formed with a circular second through hole 65A penetrating the second bottom wall 65 in the vertical direction Z. The second through hole 65A is arranged on the rear side Y2 in the front-rear direction Y from the center C2 of the second bottom wall 65. In other words, the second through hole 65A is arranged at a rear position in the second bottom wall 65. In the second bottom wall 65, the portion 65B closer to the rear side Y2 than the second through hole 65A extends substantially horizontally, and the portion 65C closer to the front side Y1 than the second through hole 65A extends upward obliquely toward the front side Y1 .

The softener injection portion 16 further has a circular tubular second pipe portion 16B that protrudes to the upper side Z1 in a state of surrounding the second through hole 65A in the softener injection portion 16, that is, in the internal space 16A. The portion 65D around the second pipe portion 16B in the second bottom wall 65 is formed in a boss shape so as to slightly drop as it approaches the second pipe portion 16B. The lower end of the second pipe portion 16B protrudes from the second bottom wall 65 to the lower side Z2, and constitutes the lower end of the second bottom wall 65 (refer to FIG. 11). The internal space of the second pipe portion 16B constitutes a second through hole 65A, and is open to both the upper side Z1 and the lower side Z2. A reinforcing rib 16C extending in the vertical direction Z and connected to the second bottom wall 65 is provided on the outer peripheral surface of the second pipe portion 16B.

The aforementioned second cover member 54 (refer to FIG. 3) is arranged in the softener injection portion 16 and is assembled to the second tube portion 16B. The second cover member 54 is arranged in the same manner as the first cover member 53. The second cover member 54 has: a second top plate portion 54A that faces the upper end portion of the second pipe portion 16B from the upper side Z1 via a gap; and a cylindrical second tube portion 54B that extends from the second top plate portion 54A The central portion extends to the lower side Z2 and surrounds the second pipe portion 16B. The second top plate portion 54A is a substantially rectangular flat plate extending substantially horizontally. The lower end of the second cylindrical portion 54B is arranged to be away from the second bottom wall 65 to the upper side Z1.

Strictly speaking, the second left wall 66 is longer than the second right wall 67 at the rear side Y2, and the rear end portion 66A of the second left wall 66 is in a state of protruding toward the rear side Y2 from the second rear wall 68. A second guide rail 70 linearly extending in the front-rear direction Y is provided at the upper end of the second right wall 67. The rear end of the second rail 70 is arranged on the rear side Y2 than the second rear wall 68. The second rear wall 68 is arranged at the same position as the first rear wall 58 of the detergent injection portion 15 in the front-rear direction Y. The second front wall 69 extends obliquely to the upper front side. The second front wall 69 is connected to the handle 50 from the rear side Y2.

Fig. 5 is a perspective view of the container 31 viewed from the lower side Z2. In the lower surface portion of the second bottom wall 65 of the softener injection portion 16 on the left side X1 of the second through hole 65A, that is, the area on the detergent injection portion 15 side, rectifying ribs 71 protruding to the lower side Z2 are provided. The rectifying rib 71 has a rear end portion 71A and a front end portion 71B that extend in the front-rear direction Y; and a midway portion 71C that is inclined from the rear end portion 71A to the left side X1 and is connected to the front end portion 71B. Therefore, the rectifying rib 71 as a whole extends so as to approach the detergent injection portion 15 on the left side X1 as it approaches the front side Y1 from the rear side Y2.

FIG. 6 is a plan view of the container 31. The partition rib 51 is a vertical plate disposed between the first right wall 57 of the detergent injection portion 15 and the second left wall 66 of the softener injection portion 16, and extends from the handle 50 in the front-rear direction Y to the rear side Y2. The partition rib 51 is arranged in parallel with the first right wall 57 and the second left wall 66 in a plan view. The upper end of the partition rib 51 is arrange|positioned at the position higher than the upper end of each of the 1st right wall 57 and the 2nd left wall 66 (refer FIG. 11). The rear end portion 51A of the partition rib 51 is arranged on the rear side Y2 than the first rear wall 58 of the detergent injection portion 15 and the second rear wall 68 of the softener injection portion 16. A slit-shaped drain hole 75 extending in the front-rear direction Y is provided between the partition rib 51 and the first right wall 57. The drain hole 75 is open to both the upper side Z1 and the lower side Z2. The container 31 has a plurality of connecting portions 76 arranged in the water discharge hole 75 and spanned between the first right wall 57 and the partition rib 51. These connecting portions 76 are arranged side by side in the front-rear direction Y. The last connecting portion 76 is bridged between the rear end of the first right wall 57 and the partition rib 51.

The relief groove 52 is disposed between the partition rib 51 and the second left wall 66 of the softener injection portion 16 and extends in the front-rear direction Y. The partition rib 51 is the side wall of the left side X1 in the relief groove 52, and the second left wall 66 is the side wall of the right side X2 in the relief groove 52. The container 31 includes a plate-shaped inclined plate 77 that is erected between the partition rib 51 and the second left wall 66 and extends in the front-rear direction Y. The inclined plate 77 constitutes the bottom 52A of the discharge groove 52, and almost the entire area follows the direction The way the front side Y1 descends is inclined.

Fig. 7 is a cross-sectional view taken along the line AA in Fig. 6. In the bottom 52A of the drain groove 52, the rear end 52B is arranged on the rear side Y2 than the first through hole 55A of the first bottom wall 55 of the detergent dispenser 15, and the front end 52C is arranged on the first through hole. 55A is near the front side Y1. The rear end 52B extends in the horizontal direction H. In the groove bottom 52A, a midway portion 52D connecting the rear end portion 52B and the front end portion 52C extends obliquely downward toward the front side Y1. A convex portion 52E that protrudes to the upper side Z1 and extends in the left-right direction X is provided at the boundary between the rear end portion 52B and the midway portion 52D. The front end portion 52C is connected to the front end, that is, the lower end, of the midway portion 52D. The tip portion 52C is provided with a relief hole 52F penetrating the inclined plate 77 in the vertical direction Z.

FIG. 8 is a plan view of the water injection unit 11 in a state where the top wall 38 of the cartridge 30 is removed. The sprinkler 32 includes a first sprinkler tray 81 arranged directly above the detergent injection part 15 and a second sprinkler tray 82 arranged directly above the softener injection part 16. Each of the first sprinkling tray 81 and the second sprinkling tray 82 is a substantially rectangular tray that is long in the front-rear direction Y in a plan view. The bottom plate 81A of the first sprinkler tray 81 and the bottom plate 82A of the second sprinkler tray 82 are respectively formed with a plurality of sprinkler ports 83 composed of through holes. The sprinkler 83 has: a plurality of first sprinklers 83A arranged in a manner distributed over almost the entire area of the bottom plate 81A; a plurality of second sprinkler ports 83B arranged in a manner distributed over the entire area of the bottom plate 82A; and a plurality of second sprinkler outlets 83A. The three sprinklers 83C are juxtaposed in the front-rear direction Y along the right end of the bottom plate 81A.

FIG. 9 is a perspective view of the first sprinkling tray 81. The first sprinkler 83A includes a plurality of slits 83AA arranged in the front-rear direction Y; and a plurality of circular holes 83AB arranged around each of the slits 83AA. Each slit 83AA is elongated in the left-right direction X. The second sprinkler 83B has many round holes (refer to FIG. 8). Each third sprinkler 83C is a rectangular hole, and is arranged to be away from the first sprinkler 83A group to the right side X2.

FIG. 10 is a plan view of the water injection unit 11. Fig. 11 is a cross-sectional view taken along the line BB of Fig. 10. The sprinkler 32 is arranged at the upper part of the internal space 30B of the box 30. Specifically, in the sprinkler portion 32, the first sprinkler tray 81 and the second sprinkler tray 82 are arranged side by side in the upper part of the internal space 30B so that the first sprinkler tray 81 is located on the left side X1 of the second sprinkler tray 82.

The first sprinkling tray 81 is arranged directly above the detergent injection part 15. In the first sprinkler tray 81 in this state, all the first sprinkler ports 83A are arranged directly above the detergent dispenser 15, but all the third sprinkler ports 83C at the right end are disposed on the detergent dispenser 15 Right above the drain hole 75 adjacent to the right side (see also FIG. 8). On the left area of the lower surface of the top wall 38 of the box 30, a pair of left and right first fixing ribs 85 are provided with the first sprinkler tray 81 interposed therebetween. The claws 85A provided on each of the first fixing ribs 85 are caught on the outer peripheral portion of the first sprinkler tray 81 from the lower side Z2, whereby the first sprinkler tray 81 is fixed to the top wall 38. The first through hole 38A and the third through hole 38C of the top wall 38 are in a state of communicating with the inside of the first sprinkler tray 81 from the upper side Z1 (refer to FIGS. 2 and 8). The first sprinkler tray 81 can be drawn out from the opening 30A of the box 30.

The second sprinkling tray 82 is arranged directly above the softener injection part 16. In the second sprinkler tray 82 in this state, all the second sprinkler ports 83B are arranged directly above the softener injection portion 16. A pair of left and right second fixing ribs 86 is provided in the right area of the lower surface part of the top wall 38 with the second sprinkler tray 82 interposed therebetween. The claws 86A provided on the second fixing ribs 86 are caught on the outer periphery of the second sprinkler tray 82 from the lower side Z2, whereby the second sprinkler tray 82 is fixed to the top wall 38. The second through hole 38B of the top wall 38 is in a state of communicating with the inside of the second sprinkler tray 82 from the upper side Z1 (refer to FIGS. 2 and 8). The second sprinkler tray 82 can be drawn out from the opening 30A of the box 30. The upper end of the aforementioned partition rib 51 is arranged between the first fixing rib 85 on the right side X2 and the second fixing rib 86 on the left side X1.

In the connecting portion of the left wall 35 and the top wall 38 of the box 30, a first guide groove 30D extending in the front-rear direction Y is formed as a part of the internal space 30B of the box 30. In the connecting portion of the right wall 36 and the top wall 38 in the box 30, a second guide groove 30E extending in the front-rear direction Y is formed as a part of the internal space 30B. In the container 31, the first rail 60 on the left side X1 is accommodated in the first guide groove 30D, and the second rail 70 on the right side X2 is accommodated in the second guide groove 30E. As a result, the container 31 is supported by the box 30 so as to be slidable in the forward and backward direction Y, so that the container 31 can be withdrawn from the box 30 as described above. Therefore, the user can withdraw the container 31 from the box 30 and store the detergent in the detergent injection part 15 or store the softener in the softener injection part 16.

The detergent contained in the detergent dispenser 15 is a liquid detergent that has been used recently by users. Not only the detergent but also the liquid bleach can be stored in the detergent dispenser 15 together. A liquid softener is contained in the softener injection part 16. It should be noted that the "MAX" mark M displayed on the first top plate portion 53A of the first cover member 53 and the second top plate portion 54A of the second cover member 54 indicates the upper limit of the storage capacity of detergent and softener, so use The detergent and softener are contained so as not to exceed the mark M. The user puts back into the box 30 in the container 31. As shown in FIG. The upper side Z1 of the bottom wall 39, the first through hole 55A of the first bottom wall 55 and the second through hole 65A of the second bottom wall 65 face the bottom wall 39 from the upper side Z1.

It should be noted that both the first guide rail 60 and the first guide groove 30D are provided with a first engagement portion 88 composed of, for example, a convex portion, and the second guide rail 70 and the second guide groove 30E are both provided with the first engagement portion 88 The second engaging portion 89 is similar to the engaging portion 88 (refer to FIG. 8). The first engaging portion 88 of the first guide rail 60 and the first guide groove 30D is engaged with each other, and the second engaging portion 89 of the second guide rail 70 and the second guide groove 30E are engaged with each other, so that the container 31 in the box 30 It is located in a position where Y1 will not move freely on the front side. The washing operation is performed in a state in which the container 31 is housed in the box 30 in this way, and the water injection unit 11 dispenses detergent or softener into the washing tub 4 along with the water from the water supply channel 12. In other words, the water injection unit 11 selectively injects one of detergent and softener into the washing tub 4 when water is supplied.

Fig. 12 is a cross-sectional view taken along the line CC in Fig. 10. It should be noted that FIG. 12 shows a longitudinal section of the water injection unit 11 at the first pipe portion 15B of the detergent injection portion 15, and the longitudinal section is similar to that of the water injection unit 11 at the second pipe portion 16B of the softener injection portion 16 The longitudinal sections are almost the same.

During the cleaning process, the first water supply valve 17 is opened as described above, so the tap water in the water supply path 12 flows into the first connector 41 through the first branch path 12A, and drops from the first through hole 38A of the top wall 38 of the box 30 Into the first sprinkler tray 81 of the sprinkler portion 32 (also refer to FIG. 2). Thereby, the first sprinkling tray 81 is filled with tap water, and water is sprinkled into the detergent injection portion 15 directly below from each of the first sprinkling ports 83A. Therefore, the detergent injection part 15 is supplied with tap water from the water supply channel 12. In addition, a part of the tap water flowing into the first connector 41 flows through the relay path 45 and is supplied to the bath water pump 14 as starting water. When the bath water pump 14 supplied with the starting water is driven, the bath water flows into the third connector 43 through the hose 13 and the bath water supply path 19, and falls from the third through hole 38C of the top wall 38 of the box 30 to the sprinkling water. In the first sprinkler tray 81 of the portion 32 (also refer to FIG. 2). Thereby, the first sprinkling tray 81 is filled with bath water, and water is sprinkled into the detergent injection portion 15 directly below from each of the first sprinkling ports 83A.

In the washing process, by supplying tap water and/or bath water into the detergent injection part 15 in this way, the water level in the detergent injection part 15 rises. The water in the detergent injection portion 15 also enters the gap 90 between the first pipe portion 15B and the first tube portion 53B of the first cover member 53. When the water level in the detergent injection portion 15 that is, the water level in the gap 90 rises to the upper end of the first pipe portion 15B, due to the siphon effect, the detergent in the detergent injection portion 15 is shown by the dotted arrow in FIG. The water flows through the inner space of the first pipe portion 15B and the first through hole 55A together and falls onto the bottom wall 39 of the box 30, flows down the slope of the bottom wall 39 to the dispensing opening 30C of the box 30, and is removed from the dispensing opening 30C. Put it into the washing tub 4.

In the rinsing process after the cleaning process, specifically in the final rinsing process, the second water supply valve 18 is opened as described above, so the tap water in the water supply path 12 flows into the second connecting member 42 through the second branch path 12B, from The second through hole 38B of the top wall 38 of the box 30 drops into the second sprinkler tray 82 of the sprinkler 32 (also refer to FIG. 2). Thereby, the second sprinkling tray 82 is filled with tap water, and water is sprinkled into the softener injection portion 16 directly below from each of the second sprinkling ports 84. Therefore, the softener injection part 16 is supplied with tap water from the water supply channel 12.

By supplying tap water into the softener injection part 16 in this way, the water level in the softener injection part 16 rises. The water in the softener injection portion 16 also enters the gap 91 between the second pipe portion 16B and the second tube portion 54B of the second cover member 54. When the water level in the softener injection portion 16, that is, the water level in the gap 91 rises to the upper end of the second pipe portion 16B, due to the siphon effect, the detergent in the softener injection portion 16 is shown by the dotted arrow in FIG. The water flows through the inner space of the second pipe portion 16B and the second through hole 65A and falls onto the bottom wall 39 of the box 30, flows down the slope of the bottom wall 39 to the injection port 30C of the box 30, and is dropped from the injection port 30C. To the washing tub 4.

As described above, in the first bottom wall 55 of the detergent injection portion 15, the portion 55C that is closer to the front side Y1 than the first through hole 55A extends diagonally upward as it approaches the front side Y1. Among the two bottom walls 65, a portion 65C that is closer to the front side Y1 than the second through hole 65A extends obliquely upward as it goes to the front side Y1. Thereby, between each of the portion 55C and the portion 65C and the bottom wall 39 extending obliquely downward as it approaches the front side Y1, a space 93 that expands in the vertical direction Z as it approaches the front side Y1 is secured. Therefore, the water dropped from the detergent injection part 15 and the softener injection part 16 onto the bottom wall 39 of the box 30 can flow smoothly in the space 93 and be supplied into the washing tub 4 from the injection port 30C.

In the washing process, when the first water supply valve 17 is fully opened to supply both tap water and bath water to the detergent injection unit 15, the amount of water supplied to the detergent injection unit 15 is the largest. In the case where the amount of water supplied to the detergent injection portion 15 is the largest, it is conceivable that the drainage from the first through hole 55A in the detergent injection portion 15 cannot catch up with the water supply. When the state where the drainage cannot keep up with the water supply continues and the water in the detergent injection part 15 has nowhere to go and overflows to the softener injection part 16, the softener in the softener injection part 16 will flow out together with the water, so it cannot be used afterwards. During the final rinsing process, the required amount of softener is supplied into the washing tub 4.

Therefore, as shown in FIG. 11, the partition rib 51 is arranged between the detergent injection part 15 and the softener injection part 16, so the water that overflows from the detergent injection part 15 and will reach the softener injection part 16 during the cleaning process ( Refer to the dashed arrow in FIG. 11) will be blocked by the partition rib 51. The upper end of the partition rib 51 is arranged between the first fixed rib 85 on the right side X2 and the second fixed rib 86 on the left side X1, whereby a labyrinth structure 92 is formed around the upper end of the partition rib 51. Therefore, the water overflowing from the detergent injection part 15 hardly reaches the upper end part of the partition rib 51, and crosses the partition rib 51 to the softener injection part 16 side.

In addition, the drain groove 52 is arranged between the partition rib 51 and the softener injection portion 16, so even if the water overflowing from the detergent injection portion 15 crosses the partition rib 51, the water is contained in the drain groove 52. As shown in FIG. 13 which is a cross-sectional view taken along the line DD in FIG. 10, the groove bottom 52A of the discharge groove 52 extends obliquely downward toward the injection opening 30C of the cartridge 30, and is on the injection opening 30C side in the groove bottom 52A A bleed hole 52F facing the bottom wall 39 of the box 30 from the upper side Z1 is formed at the front end portion 52C of the A2.

Therefore, the water contained in the drain groove 52 flows along the slope of the bottom 52A of the drain slot 52 to the drain hole 52F, as shown by the dashed arrow in FIG. 13, and falls from the drain hole 52F to the bottom of the box 30 On the wall 39, it flows down to the inlet 30C along the slope of the bottom wall 39, and is dropped into the washing tub 4 from the inlet 30C. Therefore, it is difficult for the water in the detergent injection part 15 to reach the softener injection part 16. In addition, as will be described later, the water filled on the inner side of the box 30 can be discharged to the front side Y1 through the space 94 (refer to FIG. 14) on the lower side Z2 of the discharge groove 52. In particular, the bleed hole 52F is not provided in the entire area of the bleed groove 52, but is provided only at the tip portion 52C on the side of the injection port 30C, so that the bleed hole 52F is arranged to be away from the softener injection portion 16 to the lower side Z2 . Therefore, even if the water flowing on the bottom wall 39 gushes up from the drain hole 52F to the drain groove 52 at a certain time, the water hardly reaches the upper end of the softener injection part 16 and flows into the softener injection part 16. In addition, the splashing water from the drain hole 52F to the drain groove 52 flows along the slope of the groove bottom 52A, returns to the drain hole 52F, and falls to the bottom wall 39 as described above. Therefore, it is possible to prevent the softener in the softener injection portion 16 from being exhausted before the final rinsing process at the original use timing. In addition, there are only two injection parts for injection of detergent and the like in the water injection unit 11, which are the detergent injection part 15 and the softener injection part 16. Therefore, the water injection unit 11 can be reduced in size.

The acute angle of inclination of the upper surface of the bottom 52A of the relief groove 52 with respect to the horizontal direction H is called the inclination angle α, and the acute angle of inclination of the upper surface of the bottom wall 39 of the box 30 with respect to the horizontal direction H is called Angle of inclination β. In this embodiment, the inclination angle α is greater than or equal to the inclination angle β. Specifically, the inclination angle α is approximately 15 degrees and the inclination angle β is approximately 5 degrees, but these values can be changed as appropriate. In addition, the inclination angle α may be equal to or less than the inclination angle β. In either case, a wide space 94 in the vertical direction Z is ensured between the bottom wall 39 and the groove bottom 52A located on the upper side Z1 of the bottom wall 39. Therefore, the water dropped from the detergent injection portion 15 and the softener injection portion 16 onto the bottom wall 39 of the box 30 can flow smoothly to the front side Y1 in the space 94 and be supplied into the washing tub 4 from the injection port 30C. . Thereby, it is possible to ensure a flow path for guiding water that has nowhere to go to the injection port 30C at the rear end of the bottom wall 39. It should be noted that if the inclination angle α is to be increased, the rear end 52B of the tank bottom 52A may be arranged near the center C3 in the vertical direction Z of the internal space 15A of the detergent dispenser 15.

The rear end 52B of the groove bottom 52A is arranged on the rear side Y2 than the first through hole 55A of the detergent injection portion 15, and the front end 52C of the groove bottom 52A is arranged on the front side Y1 than the first through hole 55A. Specifically, the rear end 52B may be arranged in the vicinity of the rear wall 37 of the cartridge 30, and the front end 52C may be arranged at a position extending from the center of the first through hole 55A to the front side Y1 by a distance substantially equal to the distance γ That is, the distance γ is a distance in the front-rear direction Y connecting the center of the first through hole 55A and the rear end of the rear end portion 52B. Thereby, the drain tank 52 can contain the water overflowing from the detergent injection part 15 and crossing the partition rib 51 over the wide area in the front-back direction Y. Therefore, it is more difficult for the water in the detergent injection part 15 to reach the softener injection part 16, and therefore, it is possible to further prevent the softener in the softener injection part 16 from being exhausted before the original use timing.

In addition, the rear end portion 52B of the groove bottom 52A and the rear end portion 51A of the partition rib 51 are arranged so as to protrude toward the rear side Y2 from the first rear wall 58 of the detergent injection portion 15. Moreover, the rear end part 66A (refer FIG. 4) of the 2nd left wall 66 of the softening agent injection part 16 is also arrange|positioned so that it may protrude to the rear side Y2 rather than the 1st rear wall 58. In this case, even if the rear portion of the box 30 is filled with water, these rear end portions 51A, rear end portions 52B, and rear end portions 66A can prevent the water from entering the softening agent from the second rear wall 68 of the softening agent injection portion 16剂 Putting part 16 in.

As shown in FIG. 14 which is a cross-sectional view taken along the line EE in FIG. 10, a water discharge hole 75 is arranged between the detergent injection portion 15 and the partition rib 51. Therefore, even if the water overflowing from the detergent dispensing portion 15 is about to go to the partition rib 51, the water will fall from the drain hole 75 to the bottom wall 39 of the box 30, and flow down the slope of the bottom wall 39 to the dispensing port 30C, from The injection port 30C is injected into the washing tub 4. In addition, since the lower side Z2 of the inclined plate 77 constituting the groove bottom 52A of the drain groove 52 is ensured as a flow path the space 94 leading the water to the side of the injection port 30C, even if it falls from the water discharge hole 75 to the bottom wall 39 The upper water fills the area of the rear side Y2 in the box 30, and the space 94 can also prevent the water from entering the softener injection portion 16 from the rear side Y2. Therefore, it is difficult for the water in the detergent injection part 15 to reach the softener injection part 16, and therefore, it is possible to further prevent the softener in the softener injection part 16 from being exhausted before the rinsing process at the original use timing.

In addition, the sprinkler 32 that receives water from the water supply channel 12 sprinkles water from the first sprinkler 83A to the detergent injection part 15 and sprinkles water from the second sprinkler 83B to the softener injection part 16, but from the front of the water discharge hole 75. The upper third sprinkler 83C does not sprinkle the detergent injection part 15 and the softener injection part 16 but directly sprinkles the water discharge hole 75 between the detergent injection part 15 and the partition rib 51 (refer to FIG. 8 and FIG. 11). In other words, the sprinkler 32 discharges excess water from the water received from the water supply path 12 to the water discharge hole 75, and therefore can prevent the water in the detergent injection part 15 from overflowing to the softener injection part 16. Therefore, it is more difficult for the water in the detergent injection part 15 to reach the softener injection part 16, and therefore, it is possible to further prevent the softener in the softener injection part 16 from being exhausted before the original use timing.

In addition, the rectifying ribs 71 provided on the lower surface of the second bottom wall 65 of the softener dispensing portion 16 strongly flow down the water from the drain hole 75 to the bottom wall 39 of the box 30 to the detergent dispensing portion 15 side, that is, left and right. The space 94 on the center side of the container 31 in the direction X can smoothly merge the water with other water flowing on the bottom wall 39 (also refer to FIG. 5). Thereby, it is possible to prevent the defect that the water flowing down from the water discharge hole 75 to the bottom wall 39 is scattered left and right at the inlet 30C, which impairs the beauty of the water supply.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope described in the technical solution.

For example, the washing machine 1 in the foregoing embodiment is a vertical washing machine in which the central axis J of the washing tub 4 extends in the vertical direction Z, that is, the vertical direction V, but the washing tub 4 of the vertical washing machine may also be perpendicular to the center axis J. The direction V is arranged obliquely so that the direction Y is inclined to the front and back.

Claims

A washing machine, characterized in that it comprises:

Washing bucket, containing washings;

A water supply path for supplying water to the washing tub; and

The water injection unit injects detergent or softener into the washing tub along with the water from the water supply channel,

The water injection unit includes:

A box having a dispensing opening from the upper side into the washing tub and a bottom wall extending obliquely to the lower side in the depth direction of the box and connected with the dispensing opening; and

A container is housed in the box in a manner that can be withdrawn from the box, and the container has: a detergent injection part for storing detergent, and is supplied with water from the water supply channel; a softener injection part, and the The detergent injection parts are arranged side by side, containing softener, and are supplied with water from the water supply channel; the partition ribs are arranged between the detergent injection part and the softener injection part and extend in the depth direction And a relief groove, which is arranged between the partition rib and the softener injection portion, and extends in the depth direction,

The detergent injection part has: a first bottom wall formed with a first through hole from an upper side to the bottom wall; and a first pipe part that surrounds the first through hole in the detergent injection part The state protrudes to the upper side,

The softener injection part has: a second bottom wall formed with a second through hole from the upper side to the bottom wall; and a second pipe part that surrounds the second through hole in the softener injection part The state protrudes to the upper side,

The relief groove has: a groove bottom, which extends obliquely lower side toward the injection port; wall.
The washing machine according to claim 1, wherein:

The depth direction includes the inner side away from the injection port and the front side close to the injection port,

The end of the back side in the groove bottom is arranged closer to the back side than the first through hole,

The front end of the groove bottom is arranged closer to the front side than the first through hole.
The washing machine according to claim 2, characterized in that:

The first through hole is arranged at a position closer to the inner side than the center of the first bottom wall in the depth direction, and the second through hole is arranged in the depth direction than the second bottom wall The center is on the inner side,

The portion of the first bottom wall closer to the front side than the first through hole extends obliquely upward as it approaches the front side,

A part of the second bottom wall closer to the front side than the second through hole extends diagonally upward as it goes to the front side.
The washing machine according to claim 2 or 3, characterized in that:

A water discharge hole that is open to both the upper side and the lower side is provided between the softener injection portion and the partition rib,

The relief groove has an inclined plate constituting the groove bottom,

The water injection unit further includes a sprinkler, the sprinkler has a sprinkler, and receives water from the water supply channel and sprinkles water into the container from the sprinkler,

The sprinkler has: a first sprinkler, which is arranged directly above the detergent injection part; a second sprinkler, which is arranged directly above the softener injection part; and a third sprinkler which is arranged on the Right above the drain hole.
The washing machine according to claim 4, wherein:

On the lower surface portion of the second bottom wall, a rectifying rib is provided in an area closer to the detergent injection portion side than the second through hole, and the rectifying rib is configured to move toward the front from the back side. It extends sideways and close to the detergent injection part.