CN111050625A

CN111050625A - Tableware cleaning machine

Info

Publication number: CN111050625A
Application number: CN201980003817.5A
Authority: CN
Inventors: 后藤惇; 田中启之; 王鋆
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2018-02-21
Filing date: 2019-01-16
Publication date: 2020-04-21
Anticipated expiration: 2039-01-16
Also published as: JPWO2019163334A1; JP7113197B2; WO2019163334A1; CN111050625B

Abstract

Comprises a dish basket (6) for containing the objects to be washed (13), a washing tank (2) for containing the dish basket (6), a detergent supply device (16) for supplying detergent, and a control part (36). The detergent supply device (16) comprises: a detergent container (17) having an opening and rotatably provided; a rotation mechanism which rotates the detergent container (17) to a state of discharging the detergent contained in the detergent container (17); and a cover (31) that closes the opening in the pre-cleaning step. Thus, water is prevented from entering the detergent container (17) in the pre-washing step, and detergent can be reliably supplied in the washing step with a simple structure.

Description

Tableware cleaning machine

Technical Field

The present invention relates to a dishwasher for washing dishes or the like with washing water.

Background

In general, a dishwasher for washing dishes or the like is configured to spray washing water pressurized by a washing pump from a spray port of a washing nozzle toward the dishes to wash away dirt adhering to the dishes. In this case, it is considered that the pre-washing for removing large dirt adhering to the object to be washed with washing water containing no detergent is performed before the washing step for washing with washing water containing detergent, thereby improving the washing effect. That is, the cleaning step is made to be performed next to the pre-cleaning step. Therefore, the detergent supplied in the washing step is put into the detergent supply device in advance before the start of the operation. Then, after the pre-washing step is performed, a detergent is supplied by a detergent supply device (see, for example, patent document 1).

As shown in fig. 11 and 12, the dish washing machine described in patent document 1 includes a shielding member 74 attached to a container 72 in which detergent 71 is put so as to be rotatable about a shaft 73. The shielding member 74 is locked to the container 72 in a state of shielding the container 72 in which the detergent 71 is put in the preliminary washing step. Then, in the cleaning step, the shielding member 74 is rotated in the arrow direction to open the container 72. Thereby, the detergent 71 in the container 72 is discharged to the washing tank.

In addition, a storage chamber for storing a detergent is provided with a detergent replenishment cover for opening and closing a detergent replenishment port and a detergent supply cover for opening and closing a detergent supply port. In addition, a structure is also conceivable in which the detergent replenishment cover and the detergent supply cover are opened in the washing step, and the detergent is flowed in by water (see, for example, patent document 2).

However, in the case of the above-described structure, the detergent supplied in the washing step is kept in the detergent supply device during the execution of the pre-washing step. Therefore, in the pre-washing step, if the detergent contains moisture, the detergent is difficult to be discharged from the detergent supply device. Therefore, in the dish washing machine having the conventional configuration, a method of applying vibration to the detergent supply device and a method of discharging the detergent by flowing water are conceivable. However, in the case of these methods, the structure is complicated.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2000-300498

Patent document 2: japanese patent laid-open publication No. 2005-131054

Disclosure of Invention

The invention provides a dish washing machine, which can prevent water from entering a detergent container in a pre-washing step and reliably supply detergent in the washing step with a simple structure.

The dish washing machine of the present invention comprises: a dish basket for receiving objects to be washed; a washing tub for receiving a dish basket; a detergent supply device for supplying a detergent into the washing tank; and a control unit for controlling a cleaning operation including at least a pre-cleaning step, a cleaning step, and a rinsing step. The detergent supply device comprises: a detergent container having an opening and rotatably provided; a lid section that closes the opening section in the preliminary cleaning step; and a rotation mechanism for rotating the detergent container to a state of discharging the detergent contained in the detergent container.

With this structure, it is possible to prevent water from entering into the detergent container in the pre-washing step. In the washing step, the detergent container is rotated in a state where the detergent in the detergent container is discharged into the washing tub. Thus, the dish washing machine capable of reliably supplying detergent with a simple structure can be realized.

Drawings

Fig. 1 is a sectional view of a main part of a dish washing machine according to embodiment 1 of the present invention.

FIG. 2 is a perspective view of a main portion of the washing tub of the dish washing machine.

Fig. 3 is a perspective view of the detergent supply device of the dish washing machine.

FIG. 4 is a plan view of the detergent container of the detergent supply device of the dish washing machine.

Fig. 5A is a side view of a main portion of the detergent container of the dishwasher with the opening facing upward.

Fig. 5B is a cross-sectional view of a main portion of the detergent container in the left-right direction with the opening facing upward.

Fig. 6 is a perspective view of the detergent supply device of the dish washing machine in a state where detergent is discharged.

Fig. 7A is a side view of a main part showing an operation in a state where the detergent is discharged from the detergent container of the dish washing machine.

Fig. 7B is a left-right main-part cross-sectional view in a state where the detergent is discharged from the detergent container.

FIG. 8 is a perspective view of a main part of the detergent supply device of the dish washing machine.

Fig. 9 is a cross-sectional view of a main portion in the left-right direction of the detergent container of the detergent supply device of the dishwasher in a state where the opening portion is covered with the lid portion.

Fig. 10 is a perspective view of the dish washing machine according to embodiment 2 of the present invention in a state where the moving part is pulled out from the housing.

Fig. 11 is a perspective view of a detergent supply device of a conventional dish washing machine.

FIG. 12 is a sectional view of the detergent supply device of the dish washing machine.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to the embodiment.

(embodiment mode 1)

Hereinafter, a dish washing machine according to embodiment 1 of the present invention will be described with reference to fig. 1 to 9.

Fig. 1 is a sectional view of a main part of a dish washing machine according to embodiment 1 of the present invention. In detail, fig. 1 shows a state in which the dishwasher is placed in the integrated kitchen SK. FIG. 2 is a perspective view of a main portion of the washing tub of the dish washing machine. Fig. 3 is a perspective view of the detergent supply device of the dish washing machine. FIG. 4 is a plan view of the detergent container of the detergent supply device of the dish washing machine. Fig. 5A is a side view of a main portion of the detergent container of the dishwasher with the opening facing upward. Fig. 5B is a cross-sectional view of a main portion of the detergent container of the dishwasher in the left-right direction with the opening facing upward. Fig. 6 is a perspective view of the detergent supply device of the dish washing machine in a state where detergent is discharged. Fig. 7A is a side view of a main part showing an operation in a state where the detergent is discharged from the detergent container of the dish washing machine. Fig. 7B is a left-right main-part cross-sectional view of the dish washing machine in a state where the detergent is discharged from the detergent container. FIG. 8 is a perspective view of a main part of the detergent supply device of the dish washing machine. Fig. 9 is a cross-sectional view of a main portion in the left-right direction of the detergent container of the detergent supply device of the dishwasher in a state where the opening portion is covered with the lid portion.

Referring to fig. 1 to 9, the dishwasher according to embodiment 1 includes a housing 1, a washing tub 2, a washing pump 3, a water supply valve 4, a door 5, and the like. In the following embodiments, as shown in the drawings, the front side is a direction in which door 5 and cleaning tank 2 are pulled out, and the rear side is a direction in which cleaning tank 2 is housed and door 5 is closed. The explanation will be given with the installation side of the dishwasher as the lower side and the opposite side as the upper side, and with the right side as the right side and the left side as the left side facing the front of the door body 5.

As shown in fig. 1, the housing 1 has a front surface opening 1a on the front surface. The washing tub 2 includes a dish basket 6, a washing nozzle 7, a drain port 8, a residue filter 9, and the like. The cleaning tank 2 is provided in the housing 1 so as to be able to be pulled out or pushed in the front-rear direction. Cleaning tank 2 has an upper surface opening 2a on the upper surface. When cleaning tub 2 is housed in casing 1, upper surface opening 2a is closed by inner lid 10 disposed in casing 1. The inner lid 10 is moved up and down in conjunction with the drawing or pushing of the wash tub 2 by the link mechanism 11. The upper surface opening 2a has a seal portion 12 formed of, for example, a deformable hollow rubber tube disposed at the periphery thereof. When cleaning tub 2 is housed in case 1, sealing portion 12 is compressed by inner lid 10 which is lowered. Thereby, the upper surface opening 2a is sealed by the sealing portion 12.

The dish basket 6 is used for placing the objects to be washed 13 such as dishes. Door 5 is provided at the front of washing tub 2 and covers the front surface of casing 1 when stored. The water supply valve 4 is provided in a water supply path 30 at the rear portion inside the housing 1. For example, tap water as washing water is supplied to washing tub 2 by opening water supply valve 4. The cleaning pump 3 is disposed on the bottom surface in the casing 1. The cleaning nozzle 7 is provided on the bottom surface side in the cleaning tank 2. The washing pump 3 pressurizes and conveys the washing water to the washing nozzle 7. The washing nozzle 7 is rotated by the ejection of the washing water that is sent under pressure and ejects the washing water toward the object to be washed 13. That is, washing pump 3 pressurizes washing water stored in washing tub 2 and supplies the water to washing nozzle 7. The washing water ejected from the washing nozzle 7 collides with the object to be washed 13, and washes away dirt adhering to the object to be washed 13. Thereby, the object to be cleaned 13 is cleaned. The washing water includes a washing liquid that contains a detergent and is sprayed to the objects to be washed 13, and rinsing water for rinsing the objects to be washed 13.

The drain port 8 is provided at the bottom of the washing tub 2. The residue filter 9 is detachably disposed in the drain port 8, and collects residues washed and removed from the object to be washed 13. Heater 14 is disposed to be submerged in the washing water stored in the bottom portion inside washing tub 2. The heater 14 heats the washing water stored in the washing tub 2 in the washing step. The heater 14 heats the drying air in the cleaning tank 2 in the drying step. The temperature sensor 15 is disposed, for example, outside the bottom surface of the cleaning tank 2, and detects the temperature of the cleaning tank 2. The temperature sensor 15 is formed of, for example, a thermistor.

The suction side of the washing pump 3 communicates with the drain port 8, and circulates washing water from which the residue is removed by the residue filter 9. The washing pump 3 is configured to discharge the washing water from which the residue has been removed by reversing the rotation direction of the motor during circulation.

Detergent supply device 16 is disposed on a side surface of washing tub 2 opposite to door 5, and supplies detergent into washing tub 2. The detergent supply device 16 includes a detergent container 17 for containing a predetermined amount of detergent, a supply device main body 18 for supporting the detergent container 17 in the washing tub 2, and the like. Detergent container 17 has shaft 19 provided in the left-right direction in bottom 17a in parallel with the front side surface of washing tub 2. The detergent container 17 is rotatably supported by a support portion 20 provided in the supply device main body 18 via a shaft portion 19. That is, the detergent container 17 is disposed to be rotatable about the shaft portion 19 in the arrow a direction shown in fig. 2.

The detergent container 17 has a bottom 17a, a wall 17b, an opening 21, and the like. The opening 21 is formed in a substantially quadrangular shape (including a quadrangle), and a detergent can be fed into the opening 21. The wall surface 17b is disposed at least on the side of the rotation direction from the bottom 17a of the detergent container 17 toward the opening 21. That is, the wall surface 17b is inclined so as to expand outward toward the opening 21.

The detergent container 17 includes an engaging portion 22 for holding the opening 21 in an upward state. On the other hand, the supply device body 18 includes a locking portion 23 that fits into the engagement portion 22 of the detergent container 17. The engagement portion 22 is provided in the supply device main body 18 so as to be movable in the arrow B direction (leftward direction) (see fig. 4). At this time, the fitting portion between the engaging portion 22 and the locking portion 23 is formed in a concave-convex shape having, for example, a substantially V shape (including a V shape).

The detergent supply device 16 includes a drive unit 24 constituting a rotation mechanism provided in the supply device body 18. The turning mechanism further includes an engaging portion 22, a locking portion 23, a connecting portion 25, and the like. The driving unit 24 cooperates with the locking unit 23 of the supply device main body 18 via the connecting unit 25.

The drive portion 24 is formed by an electromagnetic mechanism 26 having, for example, a solenoid coil. When the solenoid coil is energized, the connection portion 25 moves in the direction of arrow C (leftward) shown in fig. 3. At this time, the shaft 23a of the locking portion 23 connected to the connecting portion 25 rotates in the arrow D direction in conjunction with the connecting portion 25. Thereby, the engagement portion 23 of the supply device main body 18 moves in the arrow B direction (rightward), and is disengaged from the engagement portion 22 of the detergent supply device 16.

At this time, the detergent container 17 is biased by, for example, a spring (not shown) disposed on the shaft portion 19 so as to rotate in a direction (see fig. 6) in which the opening 21 is in a downward state. Therefore, when the locking portion 23 of the supply device main body 18 is disengaged from the engaging portion 22 of the detergent container 17, the detergent container 17 is rotated in the arrow a direction (see fig. 2 and 7A) by the urging force of the spring. Then, when the detergent container 17 is rotated, the wall surface 17b located below the detergent container 17 is inclined so as to become lower toward the opening 21. Thereby, the detergent in the detergent container 17 slides down in the direction of arrow E shown in fig. 7A on the wall surface 17b inclined downward, and is discharged into the cleaning tank 2. At this time, the detergent container 17 is rotated in the arrow a direction by setting the biasing force of the spring to the optimum value, and the detergent is discharged.

Further, the urging force of the spring is not necessarily required. For example, the detergent container 17 may be configured in a shape in which the position of the center of gravity of the detergent container 17 itself is disposed on the rotation side. Further, the detergent container 17 may be configured to be biased by adding a weight to the rotation side of the detergent container 17. Thus, when the locking portion 23 is disengaged from the engaging portion 22, the detergent container 17 rotates in the direction of arrow a shown in fig. 7A by its own weight, and the detergent is discharged.

Here, the downward state of the detergent container 17 means a state in which the detergent contained in the detergent container 17 is discharged (dropped) from the detergent container 17. That is, in the present embodiment, when the washing machine is rotated in a state where the detergent is discharged from the detergent container 17, the wall surface 17b of the detergent container 17 is inclined downward so as to become lower toward the opening 21. Therefore, the detergent in the detergent container 17 may slide down the inclined wall surface 17 b. The structure capable of discharging the detergent is also included even if the opening surface of the opening 21 of the detergent container 17 is in a substantially vertical (including vertical) longitudinal direction.

As shown in fig. 5A, 5B, 7A, and 7B, the detergent supply device 16 includes a water filling portion 27 for filling water into the detergent container 17. Water injection unit 27 includes a water injection hole 27a provided in the bottom of detergent container 17 and an opening/closing unit 27b for opening and closing water injection hole 27 a. The opening/closing unit 27b is provided in the supply device main body 18, and the detergent container 17 is pivotally mounted on the supply device main body 18 to be rotatable. When the opening 21 of the detergent container 17 is rotated downward (detergent discharge state), the water inlet 27a closed by the opening/closing part 27b is opened.

The supply device main body 18 has a water injection path 28 communicating with the water injection portion 27. The water injection path 28 is provided so as to branch from the cleaning pump 3 to the cleaning nozzle 7 as a cleaning path 29. In addition, the water filling path 28 may be provided to be branched from the water supply path 30 from the water supply valve 4 to the washing tub 2.

As shown in fig. 1, opening 21 (see fig. 2) of detergent container 17 is disposed at a position close to the opening surface of upper surface opening 2a at the front side surface of washing tub 2 in an upward state. Lid 31 is provided on inner lid 10, and when washing tub 2 is housed in casing 1, lid 31 closes opening 21 of detergent container 17 in the upward state.

The detergent container 17 further includes a 1 st rib 32 provided upright on the periphery of the opening 21, an eave-like extension 33 provided to extend outward from the side wall of the detergent container 17, and the like. The extension 33 has a groove 34 on the upper surface. The groove 34 is formed to be recessed downward along the outer circumference of the 1 st rib 32. The extension 33 and the groove 34 are provided along the outer periphery of the 1 st rib 32, for example, in a substantially U-shape (including a U-shape). The lid portion 31 of the inner lid 10 has a 2 nd rib 35 formed to stand downward. As shown in fig. 9, the 2 nd rib 35 is provided so as to surround the 1 st rib 32 from the outside. The extension 33 of the detergent container 17 and the 2 nd rib 35 of the lid 31 shield the washing water sprayed from the washing nozzle 7 in a state of closing the opening 21 of the detergent container 17, and prevent the washing water from entering the detergent container 17.

The end 34a of the groove 34 is open on the door 5 side. This prevents water flowing along tank 34 from being retained in tank 34 because water drops from end 34a into washing tub 2.

As shown in fig. 1, the control unit 36 is disposed inside the door body 5 and controls the washing operation of the dishwasher. Specifically, the control unit 36 sequentially controls a pre-cleaning step for washing away large dirt adhering to the object to be cleaned 13, a cleaning step for cleaning the object to be cleaned 13, a rinsing step for washing away detergent and residue adhering to the object to be cleaned 13, and the like, and executes a cleaning operation.

The dish washing machine according to the present embodiment is configured as described above.

Next, the operation of the dish washing machine having the above-described configuration will be described.

First, the user grips handle 5a of door 5 and pulls washing tub 2 out of housing 1 of the dishwasher. At this time, the inner lid 10 is lifted by the link mechanism 11 in conjunction with the drawing operation of the cleaning tank 2, and the inner lid 10 is separated from the upper surface opening 2a of the cleaning tank 2.

Next, the user places objects to be washed 13 such as dishes on dish basket 6 from upper surface opening 2a of washing tub 2. Further, the user manually rotates the detergent container 17 with the opening 21 facing downward against the biasing force of the spring to the upward state. At this time, the engagement portion 23 of the supply device body 18 is engaged with the engagement portion 22 of the detergent container 17. This keeps the opening 21 of the detergent container 17 facing upward. Then, the user puts a predetermined amount of detergent into the detergent container 17 with the opening 21 facing upward.

Next, the user pushes cleaning tub 2 into casing 1, and door 5 closes front surface opening 1a of casing 1. At this time, the inner lid 10 is lowered by the link mechanism 11 in conjunction with the pushing-in operation of the cleaning tub 2. Thereby, sealing portion 12 is compressed by inner lid 10, and upper surface opening 2a of cleaning tub 2 is sealed.

Next, the user sets an operation program via an operation unit (not shown) connected to the control unit 36, and operates a start button (not shown) to start the washing operation. Thus, the control unit 36 executes the washing operation of the dishwasher based on the set operation program.

The pre-washing step, the rinsing step, and the drying step for drying the object to be washed 13, which are sequentially executed by the control unit 36, will be described in more detail below.

First, the precleaning step is explained.

In the pre-washing step, controller 36 first operates water supply valve 4 to supply a predetermined amount of washing water to washing tub 2. At this time, the opening 21 of the detergent container 17 containing the detergent is closed by the lid 31 of the inner lid 10 in an upward state. Therefore, the detergent in detergent container 17 is not supplied into washing tub 2.

When the water supply is completed, the control portion 36 closes the water supply valve 4 and drives the washing pump 3. The washing pump 3 pressurizes and supplies washing water to the washing nozzle 7. Thereby, washing water containing no detergent is sprayed toward the object to be washed 13 from the washing nozzle 7 disposed near the bottom of the washing tub 2.

At this time, a part of the washing water pressurized by the washing pump 3 flows through the water injection path 28 branched from the washing path 29 from the washing pump 3 to the washing nozzle 7. However, in the preliminary washing step, the water injection hole 27a of the water injection part 27 is closed by the opening and closing part 27 b. Therefore, the washing water having reached water injection portion 27 communicating with water injection path 28 flows in the direction of arrow F shown in fig. 5B without flowing into detergent container 17 and returns to washing tub 2. In addition, for the pre-washing step, water at normal temperature is generally used for execution.

On the other hand, the water sprayed from the cleaning nozzle 7 collides with the extension 33 formed on the detergent container 17 and the 2 nd rib 35 formed on the lid 31. At this time, the water blocked by the 2 nd rib 35 and flowing downward flows in the groove 34 in the direction of the arrow G shown in fig. 8, and falls from the end 34a of the groove 34 into the cleaning tank 2. Thereby, water can be prevented from entering into the detergent container 17 in the pre-washing step.

After that, the control unit 36 executes the preliminary cleaning step for a predetermined time (for example, about 20 minutes). Then, when a predetermined time has elapsed, the control section 36 reverses the rotation direction of the motor of the washing pump 3 in the preliminary washing step. Thereby, the washing water containing dirt in washing tub 2 is discharged to the outside of casing 1 through drain opening 8.

The pre-cleaning step is completed according to the above.

Next, a cleaning step performed following the preliminary cleaning step will be described.

In the washing step, controller 36 first operates water supply valve 4 to supply a predetermined amount of washing water to washing tub 2 again through water supply path 30. Then, controller 36 rotates detergent container 17 by the operation of electromagnetic mechanism 26 of driving unit 24, and supplies the detergent contained in detergent container 17 to washing tub 2. That is, when the solenoid coil of the electromagnetic mechanism 26 is energized, the coupling portion 25 moves in the direction of arrow C (leftward) as shown in fig. 3. At the same time, the shaft 23a of the locking portion 23 connected to the connecting portion 25 rotates in the arrow D direction in conjunction with the operation of the connecting portion 25. Thereby, the engagement portion 23 of the supply device main body 18 moves in the arrow B direction (rightward), and is disengaged from the engagement portion 22 of the detergent container 17.

When the engaging portion 22 of the detergent container 17 is disengaged from the engaging portion 23 of the supply device body 18, the detergent container 17 is urged by the spring disposed on the shaft portion 19 to rotate rearward and downward. That is, the detergent container 17 is rotated in the direction of arrow a shown in fig. 7A about the shaft portion 19 (see fig. 7B) from the state where the opening portion 21 faces upward. Then, the opening 21 of the detergent container 17 is separated from the lid 31 and is in a downward state. Thereby, the detergent in the detergent container 17 slides down in the arrow E direction on the inclined wall surface 17b, and is discharged into the washing tub 2.

When the water supply is completed, the control portion 36 closes the water supply valve 4 and drives the washing pump 3. The washing pump 3 pressurizes and supplies washing water to the washing nozzle 7. Thereby, washing water containing a detergent is ejected from washing nozzle 7 disposed near the bottom of washing tub 2 toward object to be washed 13.

At this time, a part of the washing water pressurized by the washing pump 3 flows through the water injection path 28 branched from the washing path 29 from the washing pump 3 to the washing nozzle 7. Then, the washing water having reached the water injection portion 27 communicating with the water injection path 28 flows into the detergent container 17 in the direction of arrow H shown in fig. 7B from the water injection hole 27a opened by the backward and downward rotation of the detergent container 17. Thereby, the washing water flowing into detergent container 17 from the side of detergent container 17 flows out from opening 21 to washing tub 2. Therefore, even if detergent remains in detergent container 17 due to the inflow of washing water, the detergent does not remain but reliably flows out to washing tub 2.

In addition, the water filling path 28 may be provided to be branched from the water supply path 30 from the water supply valve 4 to the washing tub 2. In this case, when water is supplied in the washing step and the rinsing step, water flows into the detergent container 17 from the water inlet 27a opened by the backward and downward rotation of the detergent container 17. Thus, the detergent is not left in the detergent container 17, but more reliably flows out into the washing tub 2.

Next, the control part 36 sprays the washing water from the washing nozzle 7 and energizes the heater 14, heating the washing water to a predetermined temperature. At this time, control unit 36 detects the temperature of the washing water by temperature sensor 15 through the wall of the bottom surface of washing tub 2. Then, the control unit 36 performs control so that the washing water becomes a predetermined temperature based on the detected temperature information.

The washing water ejected from the washing nozzle 7 washes dirt on the object to be washed 13, and is sucked into the washing pump 3 again through the residue filter 9 and the drain port 8. The washing pump 3 pressurizes and conveys the sucked washing water, and supplies the washing water to the washing nozzle 7 again. The washing water is repeatedly circulated as described above to wash the object to be washed 13.

After that, the control unit 36 executes the cleaning step for a predetermined time (for example, about 30 minutes). Then, when a predetermined time has elapsed, the control unit 36 reverses the rotation direction of the motor of the washing pump 3 in the washing step. Thereby, the washing water containing dirt in washing tub 2 is discharged to the outside of casing 1 through drain opening 8.

The cleaning step is completed according to the above.

Next, a rinsing step performed following the cleaning step will be described.

In the rinsing step, controller 36 operates water supply valve 4 to supply a predetermined amount of washing water to washing tub 2 again through water supply path 30. Then, the control unit 36 drives the washing pump 3 to spray the washing water from the washing nozzle 7 toward the object to be washed 13, in the same manner as in the washing step. Thereby, the detergent, the residue, and the like remaining on the object to be cleaned 13 are washed away by the washing water. In this case, the rinsing operation such as the discharge of the washing water, the rinsing, and the supply of the washing water is repeatedly performed a plurality of times (for example, 2 to 3 times).

The rinsing step is completed according to the above.

Next, when the rinsing step is finished, the control unit 36 performs the drying step next.

Specifically, control unit 36 heats the air in washing tub 2 by heater 14. Then, the heated air is blown by a fan (not shown) to dry the object to be cleaned 13. After that, the control unit 36 performs the drying step for a predetermined time (for example, 30 minutes), and ends the drying step.

In this way, the washing operation of the dishwasher is completed.

At this time, when the object to be cleaned 13 is taken out from the cleaning tank 2 after the operation is completed, it is preferable that the detergent container 17 in the downward state from which the detergent is discharged is manually rotated against the biasing force of the spring to keep the opening 21 in the upward state. This improves the convenience of the dishwasher when the dishwasher is used next time.

In the above embodiment, the rotation mechanism for rotating the detergent container 17 of the detergent supply device 16 is constituted by the engaging portion 22, the engaging portion 23, the driving portion 24, the coupling portion 25, and the like, and the driving portion 24 is constituted by the electromagnetic mechanism 26 having the solenoid coil, but the present invention is not limited thereto. For example, a motor may be used instead of the solenoid coil. Instead of using the rotation mechanism of the connection portion 25, for example, a motor may be incorporated in the shaft portion 19 of the detergent container 17, and the detergent container 17 may be rotated directly by the motor.

As described above, the dish washing machine of the present embodiment includes: a dish basket 6 for storing the objects to be washed 13; a washing tub 2 for storing a dish basket 6; a detergent supply device 16 for supplying a detergent into the washing tub 2; and a control unit 36 for controlling a washing operation including at least a pre-washing step, a washing step, and a rinsing step. The detergent supply device 16 includes: a detergent container 17 having an opening 21 and rotatably provided; a rotation mechanism such as a drive unit 24 that rotates the detergent container 17 to a state where the detergent contained in the detergent container 17 is discharged while keeping the opening 21 of the detergent container 17 facing upward; and a lid portion 31 that closes the opening portion 21 at the time of the preliminary cleaning step. The controller 36 is configured to rotate the detergent container 17 from an upward state to a detergent discharge state at a predetermined detergent supply timing by the rotation mechanism.

With this structure, in the pre-washing step, water can be prevented from entering into the detergent container 17. In the washing step, the detergent container 17 is rotated to a state where the detergent in the detergent container 17 is discharged, that is, a state where the detergent is dropped from the detergent container 17. Thereby, the detergent in the detergent container 17 is discharged into the washing tub 2. As a result, the detergent can be reliably supplied into the cleaning tank 2 with a simple configuration.

In addition, centrifugal force acts on the detergent by the rotation of the detergent container 17 itself. Therefore, the detergent is less likely to remain in the detergent container 17, and the detergent can be reliably discharged to the cleaning tank 2. In the detergent container 17, the opening 21 of the detergent container 17 is opened downward in the washing step and the rinsing step. Therefore, the inside of the detergent container 17 can be cleaned by the water sprayed from the cleaning nozzle 7. This can maintain the inside of the detergent container 17 in a clean state.

In addition, in the present embodiment, the turning mechanism includes: a locking part 23 for locking the opening part 21 of the detergent container 17 in an upward state; a driving portion 24 that rotates the detergent container 17 in a state where the detergent contained in the detergent container 17 is discharged, in cooperation with the locking portion 23; and a shaft portion 19 that rotatably supports the detergent container 17. The controller 36 is configured to release the locking of the detergent container 17 by the driving unit 24 at a predetermined detergent supply timing, and to rotate the detergent container 17 from an upward state to a detergent discharge state.

With this structure, in the pre-washing step, water can be prevented from entering into the detergent container 17. In the washing step, the detergent container 17 is rotated to a state where the detergent in the detergent container 17 is discharged, that is, a state where the detergent is dropped from the detergent container 17, and the detergent in the detergent container 17 is discharged into the washing tub 2. Therefore, the detergent can be reliably supplied to the cleaning tank 2 with a simple configuration. Further, since the centrifugal force generated by the rotation of the detergent container 17 itself acts on the detergent, the detergent is less likely to remain in the detergent container 17, and the detergent can be reliably discharged.

In the present embodiment, the detergent supply device 16 includes a water injection unit 27 for injecting water into the detergent container 17, and the water injection unit 27 includes a water injection hole 27a provided in the detergent container 17 and an opening/closing unit 27b for opening and closing the water injection hole 27 a. The opening/closing unit 27b is configured to open the water inlet 27a when the detergent container 17 is rotated to a detergent discharge state.

With this configuration, water flows into the detergent container 17 from the opened water inlet 27a in the washing step and the rinsing step. Therefore, the detergent remaining in the detergent container 17 can be washed away by the inflowing water and can be more reliably discharged to the washing tub 2. In particular, when the object to be washed 13 is a large-sized cooking utensil (for example, a pot, or the like), the cooking utensil or the like may block the inflow of the washing water injected from the washing nozzle 7 into the detergent container 17. However, by directly flowing the washing water from water injection hole 27a into detergent container 17, the detergent can be reliably discharged into washing tub 2. Further, since the water injection hole 27a is opened and closed by the rotation of the detergent container 17, the structure of the opening and closing part 27b can be simplified.

In the present embodiment, the detergent supply device 16 includes a shaft portion 19 provided at the bottom portion 17a of the detergent container 17 and a support portion 20 rotatably supporting the shaft portion 19, and the water injection hole 27a is provided at the bottom portion 17a of the detergent container 17.

With this structure, water flowing from the side of the detergent container 17 toward the bottom 17a in the detergent container 17 first flows in a direction along the shaft portion 19. Thereafter, the water flows toward the opening 21 in the detergent container 17. Therefore, the detergent can be more reliably prevented from remaining in the detergent container 17, and the detergent can be discharged into the cleaning tank 2.

In the present embodiment, the water injection part 27 is provided with a water injection path 28 branched from the cleaning path 29.

With this configuration, water pressurized by the cleaning pump 3 can be made to flow into the detergent container 17 in the cleaning step and the rinsing step. In particular, when the object to be washed 13 is a large-sized cooking utensil (for example, a pot, or the like), the cooking utensil or the like may block the inflow of the washing water injected from the washing nozzle 7 into the detergent container 17. In this case, the washing water can be directly introduced into detergent container 17 from washing passage 29 through water supply passage 28.

In the present embodiment, the water injection portion 27 is provided with a water injection path 28 branched from a water supply path 30.

With this configuration, water supplied from water supply valve 4 can be made to flow into detergent container 17 in the washing step and the rinsing step. In particular, when the object to be washed 13 is a large-sized cooking utensil (for example, a pot, or the like), the cooking utensil or the like may block the inflow of the washing water injected from the washing nozzle 7 into the detergent container 17. In this case, water can be directly introduced into the detergent container 17 from the water supply path 30.

In addition, the present embodiment includes: a cleaning tank 2 which is provided in the housing 1 so as to be able to be pulled out or pushed in and which has an upper surface opening 2a on an upper surface; and an inner lid 10 that closes the upper surface opening 2a when the cleaning tank 2 is housed in the case 1. A lid 31 for closing the opening 21 of the detergent container 17 facing upward is provided in the inner lid 10.

With this configuration, opening 21 of detergent container 17 is opened and closed in conjunction with the pulling-out or pushing-in operation of washing tub 2. Thus, when a user puts detergent into the detergent container 17, the user does not need to open and close the opening 21 of the detergent container 17 with a lid. Therefore, the workability, operability, and the like can be improved.

In the present embodiment, the detergent container 17 includes the 1 st rib 32 provided upright on the peripheral edge of the opening 21, and the eave-like extension 33 provided outside the 1 st rib 32. The lid 31 has a 2 nd rib 35 formed to surround the 1 st rib 32 from the outside.

With this configuration, in the preliminary cleaning step, the opening 21 of the detergent container 17 can be covered with the lid 31. Further, in the cleaning step, the opening portion 21 of the detergent container 17 can be detached from the lid portion 31 and rotated in a downward state. The extension 33 can shield the water sprayed from the cleaning nozzle 7. Further, the 2 nd rib 35 formed to surround the 1 st rib 32 from the outside can block the water from entering the detergent container 17. The water blocked by the 2 nd rib 35 can drop into the washing tub 2 along the groove 34 formed on the upper surface of the extension 33.

In the present embodiment, opening 21 of detergent container 17 is provided in the vicinity of upper surface opening 2a of washing tub 2.

With this configuration, the lid 31 for closing the opening 21 in the upward state can be downsized. That is, inner lid 10 having lid 31 is lowered to close upper surface opening 2a when cleaning tub 2 is housed in casing 1. Therefore, opening 21 of detergent container 17 is disposed at a position close to the opening surface of upper surface opening 2a of washing tub 2. This can reduce the height of lid 31 projecting downward in cleaning tank 2.

(embodiment mode 2)

Hereinafter, a dish washing machine according to embodiment 2 of the present invention will be described with reference to fig. 10.

As shown in fig. 10, the dish washing machine according to embodiment 2 is different from the dish washing machine according to embodiment 1 in the following points.

That is, washing tub 52 of the dishwasher is formed of washing space 54 surrounded by the inside of casing 51 and the inner surface of door 53. The cleaning space 54 is fixed in the housing 51. The configuration is different from the above-described aspect in that the door 53 is supported in the housing 51 in a state of being movable forward and backward by a support mechanism 60 including a support member 61 and a slide rail 62. Since other configurations are the same as those in embodiment 1, embodiment 1 may be referred to and the description thereof may be omitted.

As shown in fig. 10, the dish washing machine according to embodiment 2 includes a housing 51, a washing tub 52, a door 53, a washing space 54, and the like. The housing 51 has a front surface opening 51a whose front surface is entirely open. The cleaning tank 52 is formed inside the case 51 provided with the front surface opening 51 a. The door 53 is disposed so as to cover the front opening 51 a. The cleaning space 54 is formed by the cleaning tank 52 and the door 53. A lower dish basket 56 and an upper dish basket 57 on which an object 55 to be washed such as dishes is placed are disposed in the washing space 54 so as to be movable forward and backward.

When locked to the door 53, the lower cutlery basket 56 and the upper cutlery basket 57 move together with the door 53 in the front-rear direction. On the other hand, when the locking with the door 53 is released, the lower cutlery basket 56 and the upper cutlery basket 57 move independently of the door 53. That is, in embodiment 2, the lower dish basket 56 and the upper dish basket 57 move integrally with the door 53 and move independently of the door 53.

The door body 53 has an operation portion 58 provided on the upper surface 53 a. The control unit 59 is provided inside the door 53 below the operation unit 58. The door 53 is supported by the housing 51 via the support mechanism 60 in a movable state in the front-rear direction. The support mechanism 60 includes a support member 61, a slide rail 62, and the like. Slide rails 62 are attached to the inner surfaces of the left and right sides of the housing 51 at the outer lower portion of the cleaning tank 52.

The support member 61 is formed of a metal plate such as stainless steel, for example, and the front end portion 61a is fixed to the inner lower portion of the door body 53. The support member 61 is fixed to a 2 nd movable rail (not shown) of the slide rail 62. When the door body 53 moves forward, the support member 61 and the 2 nd movable rail support the door body 53 substantially vertically (including vertically) and move forward integrally with the 1 st movable rail (not shown). Thereby, the slide rail 62 is extended.

According to embodiment 2, the cleaning tank 52 is formed separately, and the accessory device does not move. That is, the moving part is composed of the door 53, the lower basket 56, the upper basket 57, the washing nozzle, and the like. Therefore, the weight of the moving portion can be reduced.

In the dishwasher according to embodiment 2, detergent supply device 16 of the dishwasher according to embodiment 1 is disposed inside door 53 that forms a side wall of the front surface of washing tub 52, for example.

In addition, the dish washing machine according to embodiment 2 is not provided with the inner lid 10. Therefore, although not shown, the lid 31 for sealing the opening 21 of the detergent container 17 of the detergent supply device 16 is independently provided above the opening 21 in the form of an openable lid. As a result, the detergent can be supplied more reliably into washing tub 52 in the washing step, as in the dish washing machine according to embodiment 1.

As another embodiment of the dish washing machine, there is an upward opening type structure in which the door body is rotated upward to be opened and closed, in addition to the

embodiments

1 and 2. The detergent supply device disclosed in each of the above embodiments can be applied to a dishwasher of the top-opening type. Specifically, for example, the detergent supply device may be provided on a side wall of a washing tub formed below the door body.

As described above, the dish washing machine of the present invention includes: a dish basket for receiving objects to be washed; a washing tub for receiving a dish basket; a detergent supply device for supplying a detergent into the washing tank; and a control unit for controlling a cleaning operation including at least a pre-cleaning step, a cleaning step, and a rinsing step. The detergent supply device comprises: a detergent container having an opening and rotatably provided; a lid section that closes the opening section in the preliminary cleaning step; and a rotation mechanism for rotating the detergent container to a state of discharging the detergent contained in the detergent container.

With this structure, in the pre-washing step, water can be prevented from entering the detergent container. In the washing step, the detergent container is rotated to a state where the detergent in the detergent container is discharged, that is, a state where the detergent is dropped from the detergent container. Thereby, the detergent in the detergent container is discharged into the washing tank. As a result, the detergent can be reliably supplied into the cleaning tank with a simple configuration. In addition, a centrifugal force acts on the detergent by the rotation of the detergent container itself. Therefore, the detergent is not easily left in the detergent container, and the detergent can be reliably discharged to the cleaning tank. In the cleaning step and the rinsing step, the opening of the detergent container is opened downward. Therefore, the inside of the detergent container can be cleaned by the water sprayed from the cleaning nozzle. This can maintain the inside of the detergent container in a clean state.

Further, the turning mechanism of the dish washing machine of the present invention may include: a locking part for locking the opening of the detergent container in an upward state; a driving part which cooperates with the locking part to make the detergent container rotate to the state of discharging the detergent contained in the detergent container; and a shaft portion rotatably supporting the detergent container. The control unit is configured to release the locking of the detergent container by the drive unit at a predetermined detergent supply timing, and rotate the detergent container from an upward state to a detergent discharge state.

With this structure, in the pre-washing step, water can be prevented from entering the detergent container. In the washing step, the detergent container is rotated to a state where the detergent in the detergent container is discharged, that is, a state where the detergent is dropped from the detergent container, and the detergent in the detergent container is discharged into the washing tub. Therefore, the detergent can be reliably supplied to the cleaning tank with a simple structure. Further, since the centrifugal force generated by the rotation of the detergent container itself acts on the detergent, the detergent is less likely to remain in the detergent container, and the detergent can be reliably supplied.

The detergent supply device of the dishwasher of the present invention may further include a water injection unit for injecting water into the detergent container, wherein the water injection unit includes a water injection hole provided in the detergent container and an opening/closing unit for opening and closing the water injection hole. The opening/closing unit is configured to open the water injection hole when the detergent container is rotated to a detergent discharge state.

With this structure, water flows into the detergent container from the opened water filling hole in the washing step and the rinsing step. Therefore, the detergent remaining in the detergent container can be washed away by the inflowing water and can be more reliably discharged to the cleaning tank. In particular, in the case where the object to be washed is a large-sized cooking appliance (for example, a pot, or the like), even if the cooking appliance or the like blocks the inflow of the washing water injected from the washing nozzle into the detergent container, the washing water can be made to flow into the detergent container. In addition, since the water injection hole is opened and closed by the rotation of the detergent container, the structure of the opening and closing part can be simplified.

In addition, the detergent supply device of the dish washing machine according to the present invention may include a shaft portion provided at the bottom of the detergent container and a support portion rotatably supporting the shaft portion, and the water injection hole may be provided at the bottom of the detergent container.

With this structure, the water flowing in from the bottom of the detergent container first flows in the direction along the shaft portion. Thereafter, the water flows toward the opening in the detergent container. Therefore, the detergent can be more reliably prevented from remaining in the detergent container, and the detergent can be made to flow into washing tub 2.

In the dish washing machine of the present invention, the water filling section may be provided with a water filling path branched from the washing path.

With this configuration, the water pressurized by the washing pump can be made to flow into the detergent container in the washing step and the rinsing step. In particular, when the object to be washed is a large-sized cooking utensil (for example, a pot, or the like), there is a possibility that the cooking utensil or the like blocks the inflow of water injected from the washing nozzle into the detergent container. In this case, the water can be directly introduced into the detergent container from the cleaning path through the water supply path.

In the dish washing machine of the present invention, the water supply portion may be provided with a water supply path branched from the water supply path.

With this configuration, the water supplied from the water supply path can be made to flow into the detergent container in the washing step and the rinsing step. In particular, when the object to be washed is a large-sized cooking utensil (for example, a pot, or the like), there is a possibility that the cooking utensil or the like blocks the inflow of water injected from the washing nozzle into the detergent container. In this case, the water can be directly introduced into the detergent container from the water supply path.

Further, the dish washing machine of the present invention may include: a cleaning tank which is provided in the housing so as to be able to be pulled out or pushed in, and which has an upper surface opening on an upper surface; and an inner lid that closes the upper surface opening when the cleaning tank is housed in the case. A lid section for closing the opening section of the detergent container is provided on the inner lid.

With this configuration, the opening of the detergent container is opened and closed in conjunction with the pulling-out or pushing-in operation of the cleaning tank. Thus, when a user puts detergent into the detergent container, the opening of the detergent container does not need to be opened and closed by the cover. Therefore, the workability, operability, and the like can be improved.

In addition, the detergent container of the dish washing machine of the present invention may have a 1 st rib provided upright on the peripheral edge of the opening portion and an extension portion provided outside the 1 st rib. The lid portion has a 2 nd rib formed so as to surround the 1 st rib from the outside.

With this configuration, the opening of the detergent container can be covered with the lid portion in the preliminary cleaning step. In the washing step, the opening of the detergent container can be detached from the lid and rotated downward to discharge the detergent. In addition, the extension can shield the water sprayed from the cleaning nozzle. Further, the 2 nd rib formed to surround the 1 st rib from the outside can block the water from entering the detergent container. Thus, the water blocked by the 2 nd rib can be dropped into the cleaning tank along the groove formed on the upper surface of the extension portion.

In the dish washing machine of the present invention, the opening of the detergent container may be provided in the vicinity of the opening of the upper surface of the washing tub.

With this configuration, the lid portion that closes the opening portion in the upward state can be downsized. That is, when the cleaning tank is housed in the case, the inner lid having the lid portion is lowered to close the upper surface opening portion. Here, the opening of the detergent container is disposed at a position close to the opening surface of the upper surface opening of the washing tub. Thus, the height of the lid portion protruding downward in the cleaning tank can be reduced.

Industrial applicability

The dish washing machine of the present invention can prevent water from entering into the detergent container in the pre-washing step. Further, the detergent can be reliably supplied in the washing step with a simple configuration. Therefore, the present invention is useful for a dishwasher or the like that requires suppression of detergent residue or the like.

Description of the reference numerals

1. A housing; 1a, 51a, a front surface opening; 2. a cleaning tank; 2a, an upper surface opening; 3. cleaning the pump; 4. a water supply valve; 5. 53, a door body; 5a, a handle; 6. a tableware basket; 7. cleaning the nozzle; 8. a water outlet; 9. a residue filter; 10. an inner cover; 11. a link mechanism; 12. a sealing part; 13. 55, an object to be cleaned; 14. a heater; 15. a temperature sensor; 16. a detergent supply device; 17. a detergent container; 17a, a bottom; 17b, wall surfaces; 18. a supply device main body; 19. 73, a shaft portion (rotation mechanism); 20. a support portion (a rotation mechanism); 21. an opening part; 22. an engaging portion (a rotating mechanism); 23. a locking portion (a rotation mechanism); 23a, a shaft; 24. a drive unit (rotation mechanism); 25. a coupling portion (rotation mechanism); 26. an electromagnetic mechanism; 27. a water injection part; 27a, a water injection hole; 27b, an opening and closing part; 28. a water injection path; 29. a cleaning path; 30. a water supply path; 31. a cover portion; 32. the 1 st rib; 33. an extension; 34. a groove; 34a, end portions; 35. a 2 nd rib; 36. 59, a control part; 51. a housing; 52. a cleaning tank; 53a, upper surface; 54. cleaning the space; 56. a lower tableware basket; 57. putting a tableware basket; 58. an operation section; 60. a support mechanism; 61. a support member; 61a, a tip end portion; 62. a slide rail; 71. a detergent; 72. a container; 74. a shielding member.

Claims

1. A dishwasher, wherein,

the dish washing machine includes:

a dish basket for receiving objects to be washed;

a washing tub for receiving the dish basket;

a detergent supply device for supplying a detergent into the cleaning tank; and

a control part for controlling the cleaning operation at least including the pre-cleaning step, the cleaning step and the rinsing step,

the detergent supply device comprises:

a detergent container having an opening and rotatably provided;

a lid section that closes the opening section in the pre-cleaning step; and

and a rotation mechanism that rotates the detergent container in a state where the detergent contained in the detergent container is discharged.

2. The dishwasher of claim 1, wherein,

the rotating mechanism has:

a locking portion that locks the opening portion of the detergent container in the upward state;

a driving portion that rotates the detergent container in a state where the detergent contained in the detergent container is discharged, in cooperation with the locking portion; and

a shaft portion rotatably supporting the detergent container,

the control unit is configured to control the operation of the motor,

at the predetermined time of supplying the detergent, the locking of the detergent container is released by the driving unit, and the detergent container is rotated from the upward state to a state where the detergent is discharged.

3. The dishwasher according to claim 1 or 2, wherein,

the detergent supply device is provided with a water injection part for injecting water into the detergent container,

the water injection part comprises:

a water injection hole provided in the detergent container; and

an opening/closing part for opening/closing the water injection hole,

the opening/closing unit is configured to open the water injection hole when the detergent container is rotated to a state where the detergent is discharged.

4. The dishwasher of claim 3, wherein,

the detergent supply device comprises:

a shaft portion provided at a bottom of the detergent container; and

a support portion that rotatably supports the shaft portion,

the water injection hole is formed in the bottom of the detergent container.

5. The dishwasher of claim 3 or 4, wherein,

the water injection part is provided with a water injection path branched from the cleaning path.

6. The dishwasher of claim 3 or 4, wherein,

the water injection part is provided with a water injection path branched from the water supply path.

7. The dishwasher according to any one of claims 1 to 6, wherein,

the dish washing machine comprises:

a cleaning tank which is provided in the housing so as to be able to be pulled out or pushed in, and which has an upper surface opening on an upper surface; and

an inner lid for closing the upper surface opening when the cleaning tank is housed in the case,

the lid section for closing the opening section of the detergent container is provided in the inner lid.

8. The dishwasher of claim 7, wherein,

the detergent container has:

a 1 st rib provided upright on a peripheral edge of the opening; and

an extension part provided outside the 1 st rib,

the cover portion has a 2 nd rib formed so as to surround the 1 st rib from the outside.

9. The dishwasher of claim 7 or 8, wherein,

the opening of the detergent container is provided in the vicinity of the opening of the upper surface of the cleaning tank.