CN110226002B - Washing machine - Google Patents
Washing machine Download PDFInfo
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- CN110226002B CN110226002B CN201880008166.4A CN201880008166A CN110226002B CN 110226002 B CN110226002 B CN 110226002B CN 201880008166 A CN201880008166 A CN 201880008166A CN 110226002 B CN110226002 B CN 110226002B
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- washing
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- washed
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F13/00—Washing machines having receptacles, stationary for washing purposes, with agitators therein contacting the articles being washed
- D06F13/04—Washing machines having receptacles, stationary for washing purposes, with agitators therein contacting the articles being washed wherein the agitator has an axial motion only
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
- D06F17/02—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by pumps
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- Textile Engineering (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The washing machine of the present disclosure includes: pressing portions (8a, 8b) for pressing an object (2) to be cleaned in the cleaning tank (4); a pump (10) (pressurizing part) for supplying air to the pressing parts (8a, 8b) to pressurize the pressing parts; a pump (10) (suction part) for sucking washing water from the object (2) to be washed; a pressurizing path (9) that connects the pressing sections (8a, 8b) to a discharge port (10a) of the pump (10); a suction path (27) which connects the cleaning tank (4) and a suction port (10b) of the pump (10); and a control unit (39) for controlling the washing process, the rinsing process and the dewatering process to execute the washing operation. The control unit (39) is configured to perform press washing in which air is supplied to the pressing portions (8a, 8b) to press the object (2) to be washed in the washing step, and to perform suction dewatering in which washing water is sucked from the object (2) to be washed in the dewatering step. The washing machine is provided with a pump (10), wherein the pump (10) has a discharge port (10a) and a suction port (10b), and is used as a pressurizing part and a suction part.
Description
Technical Field
The present disclosure relates to a washing machine for washing laundry such as clothes.
Background
Among conventional washing machines are a pulsator type washing machine that agitates laundry such as laundry in a rotary tub to wash the laundry, and a drum type washing machine that lifts the laundry in a rotation direction of the rotary tub in the rotary tub to drop the laundry from above to beat wash the laundry. In any of the washing machines, washing is performed by applying mechanical force to laundry in addition to chemical force of detergent. In addition, dehydration of washed laundry is generally performed by centrifugal force that separates water from the laundry by centrifugal force generated by high-speed rotation of a rotary tub (see patent document 1).
The above washing machine which washes laundry by applying mechanical force thereto is not suitable for washing laundry as follows: laundry which is likely to be damaged, laundry which is likely to be entangled and pulled and which is likely to lose its shape, and laundry which is likely to be deteriorated in hand. Further, centrifugal force dewatering is not suitable for the above-mentioned laundry, as for dewatering after washing. The laundry is usually washed by hand, and examples thereof include knitted and woven fabrics of wool such as sweater and fly sweater, and scarves made of fine fibers.
Centrifugal dewatering has the advantage of high dewatering efficiency, and on the contrary, has the problem of large vibration and noise caused by high-speed rotation of the rotary tub, it is considered to perform dewatering by sucking water from the laundry in order to reduce vibration and noise at the time of dewatering (for example, see patent documents 2 to 4).
Fig. 5 is a structural diagram of the drum-type fully automatic washing machine disclosed in patent document 2. As shown in fig. 5, the air in the drum 501 is sucked and at the same time, the moisture is sucked from the laundry 502. Further, a suction body 504 is provided to cover the outer circumferential wall of the drum 501 and communicate with the water injection hole 503 of the drum 501. Then, the water contained in the laundry 502 stuck to the inner peripheral wall of the drum 501 is sucked by the suction body 504 by the suction pump 505, and dehydration is performed.
Fig. 6 is a structural diagram of the washing machine disclosed in patent document 3. As shown in fig. 6, the inside of the washing and dehydrating tub 602 sealed by the inner lid 601 is depressurized to suck and dehydrate the moisture in the laundry 603. The inner cover 601 is provided between the door 604 of the washing and dehydrating tub 602 and the laundry 603, and the laundry 603 is supported on the dehydrating surface 606 provided with the dehydrating opening 605. The inner lid 601 is movable between the door 604 and the laundry 603. By the suction member 607 functioning, the inner lid 601 is brought into close contact with the laundry 603, and the air is discharged and drained around the laundry 603.
In the dehydration device described in patent document 4, the space below the washing tank is decompressed by the decompression device, the pressing portion provided at the lower end of the bellows-shaped expansion portion is moved downward, and the laundry is pressed and compressed to be dehydrated.
As described above, in the conventional configurations described in patent documents 2 to 4, a predetermined dewatering performance can be achieved without rotating the washing tub. However, in the washing process, the beating is performed by rotating the drum, and the rubbing is performed by stirring with the pulsator. Therefore, there are the following problems: damage to clothes made of delicate materials, deformation of laundry due to winding and pulling, and deterioration of hand feeling.
In addition, in order to perform the washing operation from washing to dehydration, a plurality of driving units such as a motor and a suction pump are required. Therefore, the structure of the washing machine is complicated and large.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 10-201988
Patent document 2: japanese laid-open patent publication No. 7-222894
Patent document 3: japanese laid-open patent publication No. 2007-387
Patent document 4: japanese patent laid-open publication No. 63-21097
Disclosure of Invention
An object of the present disclosure is to provide a washing machine which cleans an object to be cleaned which is not suitable for being washed or wrung by applying a mechanical force to the object to be cleaned without damaging the object to be cleaned, and which is configured to perform operations by a plurality of pumps which are required in a washing operation from washing to spin-drying by using a common pump, thereby simplifying the structure.
The washing machine of the present disclosure includes: a washing tank for storing an object to be washed and washing water; a pressing portion for pressing an object to be cleaned in the cleaning tank; a pressurizing unit for supplying air to the pressurizing unit to pressurize the pressing unit; a suction unit for sucking washing water from the object to be washed; a pressurizing path connecting the pressing portion and a discharge port of the pressurizing portion; a suction path connecting the cleaning tank and a suction port of the suction unit; and a control unit for controlling the washing process, the rinsing process and the dewatering process to perform the washing operation. The control unit is configured to perform press washing for pressing the object to be washed by supplying air to the pressing portion in the washing step, and to perform suction dehydration for sucking washing water from the object to be washed in the dehydration step. Further, the washing machine of the present disclosure is provided with a pump that has the discharge port and the suction port and that also serves as the pressure section and the suction section.
With this configuration, the object to be cleaned, which is not suitable for being washed or wrung by applying a mechanical force to the object to be cleaned, is pressed and washed in the washing step. In the dehydration step, the washing water is sucked from the object to be washed, and the object is sucked and dehydrated. Thus, washing and dewatering can be efficiently performed without damaging the object to be washed. Further, since the pressurizing operation in the washing step and the sucking operation in the dewatering step can be performed by one pump, the structure can be simplified and downsized.
The washing machine can effectively wash and dewater on the premise of not damaging the washed objects. In addition, the washing operation from the washing to the dehydration can be performed by one pump. Thus, simplification and miniaturization of the structure of the washing machine can be achieved.
Drawings
Fig. 1 is a main part sectional view of a washing machine of embodiment 1 of the present disclosure.
Fig. 2 is a main-part sectional view of the washing machine according to the present embodiment in a state where the lid is opened.
Fig. 3A is an action diagram showing a washing operation of the washing machine according to the present embodiment.
Fig. 3B is an action diagram showing a washing operation of the washing machine according to the present embodiment.
Fig. 4 is an operation diagram showing a dehydration operation of the washing machine of the present embodiment.
Fig. 5 is a structural diagram of a conventional washing machine.
Fig. 6 is a structural view of another example of a conventional washing machine.
Detailed Description
The washing machine according to claim 1 includes: a washing tank for storing an object to be washed and washing water; a pressing portion for pressing an object to be cleaned in the cleaning tank; a pressurizing unit for supplying air to the pressurizing unit to pressurize the pressing unit; a suction unit for sucking washing water from the object to be washed; a pressurizing path connecting the pressing portion and a discharge port of the pressurizing portion; a suction path connecting the cleaning tank and a suction port of the suction unit; and a control unit for controlling the washing process, the rinsing process and the dewatering process to perform the washing operation. The control unit is configured to perform press washing for pressing the object to be washed by supplying air to the pressing portion in the washing step, and to perform suction dehydration for sucking washing water from the object to be washed in the dehydration step. Further, the washing machine of claim 1 is provided with a pump having the discharge port and the suction port and serving as both the pressure section and the suction section.
Thus, the object to be washed which is not suitable for washing or squeezing by applying a mechanical force to the object to be washed is pressed and washed in the washing step, and the washing water is sucked from the object to be washed and dehydrated in the dehydration step, whereby the object to be washed can be effectively washed and dehydrated without damaging the object to be washed. Further, since the pressurizing operation in the washing step and the sucking operation in the dewatering step can be performed by one pump, the structure can be simplified and downsized.
The washing machine according to claim 2 is the washing machine according to claim 1, wherein the pressing portion is provided in plurality, and the washing machine includes: a decompression path connecting the pressing portion and the suction port; a1 st switching unit provided in the pressure path and configured to switch communication between the plurality of pressing units and the discharge port; and a2 nd switching unit provided in the pressure reducing path and configured to switch communication between the plurality of pressing units and the suction port. The control unit is configured to drive the pump in the washing step and switch the 1 st switching unit and the 2 nd switching unit, respectively, to repeat an operation of discharging air sucked from one of the pressing portions to the other of the pressing portions and an operation of discharging air sucked from the other of the pressing portions to the one of the pressing portions, and to alternately expand and contract the pressing portions to press the object to be washed.
Thus, the pump moves air between the plurality of pressing portions, and alternately presses different portions of the object to be cleaned to perform press washing. Therefore, the amount of air in the cleaning tank does not change during the cleaning process, and the pressing force can be kept constant, so that the object to be cleaned can be cleaned effectively.
As for the washing machine of the 3 rd aspect, in the 1 st or 2 nd aspect, a gas-liquid separation section that separates the air sucked from the washing tub from the washing water is provided in the suction path. In the dehydration step, the control unit is configured to drive the pump to suck air and wash water in the washing tub and accumulate the wash water in the gas-liquid separation unit.
Thus, the pump can efficiently suck the washing water from the object to be washed and perform the dehydration, and the space can be saved and the dehydration can be efficiently performed.
As for the washing machine of the 4 th aspect, in any one of the 1 st to 3 rd aspects, the washing machine is provided with an opening/closing portion that opens and closes so that the inside of the pressing portion communicates with the outside air. In the dehydration step, the control unit is configured to open the opening/closing unit and drive the pump to suck the washing water contained in the object to be washed in the washing tank, to reduce the pressure in the washing tank, to make the interior of the pressing unit become atmospheric pressure via the opening/closing unit, and to press the object to be washed by the pressing unit.
Thus, the object to be cleaned can be pressed by the pressure difference between the inside of the cleaning tank, which is depressurized by suction of the pump, and the pressing portion opened to the atmosphere through the opening/closing portion. Therefore, the dewatering can be efficiently performed with a simple configuration without depending on the amount of air sucked from the object to be cleaned.
In the washing machine according to claim 5, in any one of claims 2 to 4, the 1 st switching unit is configured to switch to cause the discharge port to communicate with any one of the pressing units, or to cause the discharge port to communicate with all of the pressing units. The 2 nd switching unit is configured to switch between communicating the suction port with any one of the pressing units or blocking communication between the suction port and all of the pressing units.
Thus, the control unit can move the air with a simple structure, and can realize stable cleaning performance and dehydration performance.
As for the washing machine of the 6 th aspect, in any one of the 1 st to 5 th aspects, the washing machine is provided with an outside air introduction portion for introducing outside air into the inside of the washing tub. The control unit is configured to drive the pump in the dehydration step, press the object to be washed by the pressing unit, suck the washing water from the object to be washed, and suck the air introduced from the outside air introduction unit.
Thus, as the washing water is continuously sucked by the pump, the outside air introduced from the outside air introduction portion is introduced into the inside of the object to be washed. Thereby, the washing water inside the object to be washed is pushed out to the outside of the object to be washed by the air and sucked. Therefore, the dehydration can be efficiently performed with a simple configuration.
Embodiments of the present invention will be described below with reference to the drawings. The present embodiment does not limit the present disclosure.
(embodiment mode 1)
Fig. 1 is a main part sectional view of a washing machine according to embodiment 1 of the present invention. Fig. 2 is a main-part sectional view of the washing machine according to the present embodiment in a state where the lid is opened. Fig. 3A and 3B are operation diagrams showing a washing operation of the washing machine according to the present embodiment. Fig. 4 is an operation diagram showing a dehydration operation of the washing machine of the present embodiment.
In fig. 1 and 2, the washing machine 1 includes a lower water tank portion 6 and an upper cover 5. The water tank section 6 includes a washing tank 4 formed in a square shape having a predetermined depth. An opening 3 is formed in the upper surface of washing tub 4, and opening 3 is an opening for receiving object to be washed 2 such as laundry. The lid body 5 is rotatably attached to the rear edge of the upper side of the water tank 6 by a hinge portion 6 a. Lid 5 has lid 5b for opening and closing opening 3 of cleaning tub 4.
The user arranges the shape of the object 2 to be washed and stores the object in the bottom 4a of the washing tub 4. In the washing machine of the present embodiment, if washing is performed by a normal washing machine that applies a mechanical force to the object 2 to be washed, it is effective to wash clothes that are likely to be lost or damaged. Examples of the object 2 to be washed include a woolen cloth such as a sweater and a lappet sweater, and a scarf made of a fine material made of a very thin fiber.
A handle 5a is provided on the front surface of the lid 5. The user grips the handle 5a to rotate the lid 5 in the direction of the arrow R1, thereby opening and closing the opening 3. Further, the opening 3 is configured to be held in an open state. When the opening 3 is closed, the lid 5 is locked by a lock device (not shown) to keep the lid 5 in a closed state. When opening the opening 3, the lock device is unlocked by operating the handle 5 a.
A pressurizing and depressurizing portion 7 is provided inside the lid body 5. In the present embodiment, the pressure increasing and reducing section 7 includes two sets, i.e., the 1 st pressure increasing and reducing section 7a and the 2 nd pressure increasing and reducing section 7 b.
The 1 st pressure increasing and reducing section 7a includes a pressing section 8a, a pump 10, a pressure increasing path 9 connecting the pressing section 8a to a discharge port 10a of the pump 10, a1 st switching section 26a, a pressure reducing path 90 connecting the pressing section 8a to a suction port 10b of the pump 10, a2 nd switching section 26b, and an opening/closing section 11 a.
The 2 nd pressure increasing/reducing section 7b includes a pressing section 8b, a pump 10, a pressure path 9 connecting the pressing section 8b to a discharge port 10a of the pump 10, a1 st switching section 26a, a pressure reducing path 90 connecting the pressing section 8b to a suction port 10b of the pump 10, a2 nd switching section 26b, and an opening/closing section 11 b.
Here, the path from the pump 10 to the 1 st switching part 26a and the path from the pump 10 to the 2 nd switching part 26b are shared in the two pressure increasing and reducing parts 7.
The pump 10 is a pressurizing portion that supplies air to the pressing portions 8(8a, 8b) to pressurize the pressing portions, and is also a suction portion that sucks air from the pressing portions 8(8a, 8b) to reduce the pressure. In addition, as will be described later, the pump 10 also has the following functions: the path is switched to serve as a suction unit, and the cleaning water contained in the inside of the object 2 to be cleaned in the cleaning tank 4 and the air in the cleaning tank 4 are sucked. The pump 10 serves as both the pressure section and the suction section.
The pressing portions 8(8a, 8b) have a bellows shape, are formed in a bag shape, and have flexibility. The material of the pressing portions 8(8a, 8b) is, for example, rubber or synthetic resin.
The reference numerals a and b of the pressure and pressure reducing section 7(7a and 7b), the pressing section 8(8a and 8b), and the opening/closing section 11(11a and 11b) each indicate a plurality of units, and the reference numerals are omitted when it is not necessary to distinguish between the plurality of units.
The pressing portion 8 and the discharge port 10a of the pump 10 are connected to the pressurizing path 9, and a1 st switching portion 26a is provided in the middle. The 1 st path 9a constitutes a connecting portion between the 1 st switching portion 26a and the pressing portion 8 a. The 2 nd path 9b constitutes a connecting portion between the 1 st switching portion 26a and the pressing portion 8 b.
The pressure reducing path 90 is connected to the pressing portion 8 and the suction port 10b of the pump 10, and a2 nd switching portion 26b is provided in the middle. The 3 rd path 9c constitutes a connecting portion of the 2 nd switching portion 26b and the pressing portion 8 a. The 4 th path 9d constitutes a connecting portion between the 2 nd switching portion 26b and the pressing portion 8 b.
The 1 st switching portion 26a provided in the pressurizing path 9 is configured to be switchable so as to communicate the discharge port 10a of the pump 10 with any one of the pressing portions 8a, 8b, or so as to communicate the discharge port 10a with all of the pressing portions 8(8a, 8 b). The 2 nd switching portion 26b is configured to be switchable to communicate the suction port 10b of the pump 10 with any one of the pressing portions 8a and 8b, or to block the suction port 10b from all of the pressing portions 8(8a and 8 b).
The opening/closing portions 11(11a, 11b) are provided on the pressing portions 8(8a, 8b), respectively. Opening/closing unit 11 is controlled to open and close by control unit 39, which will be described later, and when opened, communicates the inside of pressing unit 8 with the outside air, and discharges the air supplied to pressing unit 8 by pump 10 to the outside, or introduces the outside air.
Further, the pressing portions 8(8a, 8b) are provided with constant pressure opening valves (not shown). When the interior of the pressing portion 8 reaches a predetermined pressure, the constant pressure opening valve opens and exhausts the air to the outside, thereby preventing the interior of the pressing portion 8 from being pressurized to exceed the predetermined pressure. The pressing portion 8 is maintained at a predetermined value by the constant pressure opening valve, and the object 2 to be cleaned is pressurized by the pressing portion 8 at a constant pressure. The constant pressure opening valve may be configured to have the function of the opening/closing unit 11.
In the present embodiment, the pressure increasing and reducing section 7(7a, 7b) is composed of two sets. However, the present invention is not limited to this, and may be configured by one or more groups.
The two pressurizing and depressurizing portions 7 are arranged inside the lid body 5. Pressing portion 8 is attached to lid body 5 on the side of cleaning tank 4.
The pressing portion 8 is configured to be extendable and retractable by expansion and contraction, and to be retractable with respect to the object 2 to be cleaned stored in the bottom portion 4a of the cleaning tank 4. The pressing portion 8 has a pressing surface 8c for pressing the object 2 to be cleaned and a bellows-shaped expansion portion 8 d. In addition, pressing portion 8 extends to such an extent that pressing surface 8c reaches bottom portion 4a of washing tub 4.
A deformable hollow gasket 12 is annularly provided on the outside of the pressing part 8 in the lid part 5b facing the washing tub 4. When lid 5b and lid 5 are closed together, gasket 12 comes into close contact with sealing portion 13, and sealing portion 13 is formed in a concave shape along the peripheral edge of opening 3 of washing tub 4. Thus, when lid 5b is closed, the inside of washing tub 4 becomes a liquid-tight and airtight space. Therefore, water and air do not leak from the opening 3 to the outside when the washing, rinsing, and dewatering steps are performed.
A drain hole 21 for draining washing water used in a washing process or the like is formed in the bottom portion 4a of the washing tub 4. The drain hole 21 communicates with a drain path 23 provided with a drain valve 22. Drain valve 22 is opened to drain the washing water in washing tub 4, and drain valve 22 is closed to stop the drainage of the washing water in washing tub 4.
In addition, water tub portion 6 is provided with overflow path 24, and overflow path 24 is provided for discharging the washing water inside washing tub 4 to the outside when the water level inside washing tub 4 reaches a predetermined level or more. The overflow path 24 has an overflow hole 24a at the upper portion of the washing tub 4, and is connected to the drain path 23 on the downstream side of the drain valve 22.
A check valve (not shown) is provided in the overflow path 24. The check valve is configured to open the overflow path 24 in the discharge direction and close the overflow path 24 in the inflow direction. That is, the check valve is configured to pass the washing water flowing out of the overflow hole 24a and discharge the washing water to the outside in the washing step and the rinsing step. In the dehydration step, when the air in the washing tub 4 is sucked by the pump 10 described later, the check valve prevents the inflow of the outside air into the washing tub 4.
A suction port 25 is provided in a substantially central portion of the bottom portion 4a of the cleaning tank 4, and when the object 2 to be cleaned is placed inside the cleaning tank 4, the suction port 25 is covered with the object 2 to be cleaned.
The suction path 27 is provided in communication with the suction port 25. The suction path 27 connects the cleaning tank 4 to the suction port 10b of the pump 10 via the suction port 25. Pump 10 sucks the washing water from the air in washing tub 4 and object to be washed 2 through suction path 27. As described above, the pump 10 functions as a suction unit at this time.
When the pump 10 sucks the washing water from the object 2 to be washed, the air in the washing tub 4 is also sucked. Here, an outside air introduction section 28 is provided for introducing outside air from outside washing tub 4 into washing tub 4. External air introducing unit 28 may be provided with an opening at a position above the water level of the washing water stored in washing tub 4. In the present embodiment, the opening is provided in water level detection unit 17 communicating with the inside of washing tub 4.
The outside air introducing portion 28 is provided with an air volume adjusting valve 29 as an air volume adjusting portion capable of adjusting the introduced air volume. The air volume adjustment valve 29 has a narrow air passage area in the flow passage, such as a needle valve, and can adjust the amount of air sucked by the pump 10. The sucked outside air may be directly introduced from the outside of the washing machine 1 or may be introduced through the internal space of the washing machine 1.
A gas-liquid separation unit 30 is provided in the suction path 27, and the gas-liquid separation unit 30 separates the air in the cleaning tub 4 from the cleaning water sucked from the object 2 to be cleaned and accumulates the sucked cleaning water. The gas-liquid separation section 30 is constituted by a pressure-resistant vessel. Further, a secondary side communication port 31 communicating with the suction path 27 and a primary side communication port 33 communicating with the suction port 10b of the pump 10 are provided above the gas-liquid separator 30. Further, a suction path opening/closing unit 27a for opening and closing the suction path 27 is provided between the primary side communication port 33 of the gas-liquid separator 30 and the suction port 10b of the pump 10.
A barrier wall 34 is provided between the primary-side communication port 33 and the secondary-side communication port 31. The barrier wall 34 is formed to protrude downward from the top surface of the gas-liquid separation portion 30. This prevents the cleaning water sucked into the gas-liquid separator 30 from the secondary-side communication port 31 from entering the primary-side communication port 33.
A dehydration drain port 35 is provided at the bottom of the gas-liquid separation section 30. The drain outlet 35 communicates with a drain passage 37 having a drain valve 36 that can be opened and closed.
An overflow detecting portion 38 is provided at a predetermined height of the inner wall of the gas-liquid separating portion 30. The overflow detecting unit 38 is configured by, for example, a pair of electrodes and detects that the amount of washing water accumulated in the gas-liquid separating unit 30 reaches a predetermined amount. When the overflow detecting unit 38 detects the washing water, the dehydration drain valve 36 is opened to drain the washing water. The overflow detecting part 38 is provided such that a certain space exists between the lower end of the blocking wall 34 and the water surface when the washing water is detected.
The control unit 39 is disposed on the side surface of the inside of the lid 5. The operation display unit 40 is provided on the upper surface of the control unit 39. The control unit 39 controls the pump 10, the opening/closing unit 11, the water supply valve 14, the drain valve 22, the 1 st switching unit 26a, the 2 nd switching unit 26b, the suction path opening/closing unit 27a, the air volume control valve 29, the dehydration drain valve 36, and the like. The control unit 39 controls the washing step, the rinsing step, and the spin-drying step in this order to perform the washing operation.
Hereinafter, the operation and action of the washing machine 1 configured as described above will be described.
The user inputs the selection of the operation program, the time of each step, and the like from the operation display unit 40 provided on the front portion of the upper surface of the lid body 5. The control unit 39 executes the steps from washing to dewatering as a series of operations based on the setting contents. The user can arbitrarily select the process such as only the washing process or only the dehydrating process. The setting operation may be performed after the object 2 to be cleaned is placed, as described later.
After the user operates the handle 5a and unlocks the lid body 5, the shape of the object 2 to be washed is arranged and placed on the bottom 4a of the washing tub 4. Depending on the size of the object 2 to be washed, the object may be folded. When the setting of the object to be washed 2 is completed and the lid 5 is closed and locked, the control unit 39 starts the operation according to the operation program set by the operation display unit 40.
In the first washing step of the operation program, controller 39 first performs a water supply operation. Controller 39 opens water supply valve 14 and supplies tap water and detergent as washing water from water supply path 16 to the inside of washing tub 4. At this time, the air volume adjusting valve 29 is opened, and the drain valve 22, the suction path opening/closing unit 27a, and the dehydration drain valve 36 are closed. The supplied washing water gradually permeates into the object 2 to be washed, and is included between fibers of the object 2 to be washed. Control unit 39 supplies washing water to the inside of washing tub 4 to a predetermined water level, and closes water supply valve 14 when the predetermined water level is detected by water level switch 20 of water level detection unit 17.
When the water supply is finished, the control section 39 closes the opening/closing section 11 and the air amount adjusting valve 29. The controller 39 switches the 1 st switching part 26a so that only the discharge port 10a and the pressing part 8a communicate with each other via the 1 st path 9a, and switches the 2 nd switching part 26b so that only the suction port 10b and the pressing part 8b communicate with each other via the 4 th path 9 d.
Next, the control section 39 drives the pump 10 for a predetermined time or until the pressing section 8a reaches a predetermined pressure. This sucks air in the pressing portion 8b through the 4 th path 9d, and supplies air into the pressing portion 8a through the 1 st path 9 a. Then, as shown in fig. 3A, pressing portion 8B contracts (arrow B1), and pressing portion 8a expands (arrow a 1).
Specifically, the stretchable portion 8d of the pressing portion 8a is stretched, and the pressing portion 8a is stretched in the direction of arrow a1 toward the object 2 to be washed. Thereby, the portion of the object 2 to be cleaned below the pressing portion 8a pressed by the pressed surface 8c is compressed, and the thickness is reduced. As the object 2 to be washed is compressed, the volume changes, and a part of the washing water contained in the object 2 to be washed is pushed out from the object 2 to be washed. As a result, water flow is generated inside the object 2 to be cleaned, and dirt adhering to the object 2 to be cleaned is separated from the fibers by the water flow, thereby removing the dirt.
Further, a part of the washing water contained in the inside of the object to be washed 2 moves in the inside of the object to be washed 2 from below the pressing portion 8b of the pressing portion 8a in the direction indicated by the arrow C1. The washing water thus moved pushes up the pressing surface 8c of the pressing portion 8b while expanding the object 2 to be washed below the pressing portion 8 b.
Next, the controller 39 switches the 1 st switching part 26a so that only the discharge port 10a and the pressing part 8b communicate with each other through the 2 nd path 9b, and switches the 2 nd switching part 26b so that only the suction port 10b and the pressing part 8a communicate with each other through the 3 rd path 9c, with the opening/closing part 11 and the air volume adjustment valve 29 closed.
Next, the control section 39 drives the pump 10 for a predetermined time or until the pressing section 8b reaches a predetermined pressure. This sucks air in the pressing portion 8a through the 3 rd path 9c and supplies air into the pressing portion 8b through the 2 nd path 9 b. Then, as shown in fig. 3B, pressing portion 8a contracts (arrow a2), and pressing portion 8B expands (arrow B2).
Specifically, the stretchable portion 8d of the pressing portion 8B is stretched, and the pressing portion 8B is stretched in the direction of arrow B2 toward the object 2 to be washed. Thereby, the portion of the object 2 to be cleaned below the pressing portion 8b pressed by the pressed surface 8c is compressed, and the thickness is reduced. As the object 2 to be washed is compressed, the volume changes, and a part of the washing water contained in the object 2 to be washed is pushed out from the object 2 to be washed. As a result, water flow is generated inside the object 2 to be cleaned, and dirt adhering to the object 2 to be cleaned is separated from the fibers by the water flow, thereby removing the dirt.
Further, a part of the washing water contained in the inside of the object to be washed 2 moves in the inside of the object to be washed 2 from below the pressing portion 8a of the pressing portion 8b in the direction indicated by the arrow C2. The washing water thus moved pushes up the pressing surface 8c of the pressing portion 8a while expanding the object 2 to be washed below the pressing portion 8 a.
In this way, in the washing step, the pressing portion 8a and the pressing portion 8b are repeatedly expanded and contracted at alternately different timings for a predetermined time (for example, 10 minutes) (for example, pressurization by expansion of the pressing portion 8a is performed for 1 second, and depressurization by contraction of the pressing portion 8b is performed for 1 second).
This allows the object 2 to be washed to exhibit a washing effect. That is, without applying mechanical force generated by stirring, beating, or the like to the object 2 to be cleaned, it is possible to generate multi-directional water flows inside the object 2 to be cleaned and remove dirt. In addition, in addition to the alternately performing the expansion and contraction of the pressing portions 8a and 8b at the predetermined timing as described above, the expansion and contraction of the pressing portions 8a and 8b may be alternately performed at a predetermined pressure.
When a washing program is set to be executed from the washing step to the dehydration step, the control unit 39 sequentially executes the rinsing step and the dehydration step following the washing step.
In the rinsing step, for example, after the water draining operation and the intermediate dewatering operation are performed, a water accumulation rinsing operation is performed.
In the water discharge operation, the water discharge valve 22 is opened to discharge the washing water in the washing tub 4 from the water discharge hole 21 to the outside through the water discharge path 23. At this time, control unit 39 opens air volume adjusting valve 29 to allow washing tub 4 to communicate with the outside air, thereby promoting air replacement and smoothly discharging the washing water.
In the intermediate dewatering operation, the control unit 39 opens the opening/closing unit 11 and the suction path opening/closing unit 27a in a state where the drain valve 22 is closed. Further, control unit 39 switches 1 st switching unit 26a so that discharge port 10a and pressing unit 8a communicate with each other via 1 st path 9a and discharge port 10a and pressing unit 8b communicate with each other via 2 nd path 9 b. That is, the supply of air to all the pressing portions 8 is switched. Further, the controller 39 closes the 2 nd switching part 26b to block the communication between the suction port 10b and all the pressing parts 8.
Subsequently, the controller 39 drives the pump 10. Pump 10 sucks the air in washing tub 4 and the washing water in object 2 through suction path 27 from suction port 25. The sucked washing water flows out from the washing tub 4 to the suction path 27 through the suction port 25 as indicated by an arrow C3, and moves to and is stored in the gas-liquid separation unit 30.
The air in the suctioned cleaning tank 4 is supplied to the pressing portions 8a and 8b through the 1 st path 9a and the 2 nd path 9b via the gas-liquid separation portion 30 and the pump 10. Thereby, as shown in fig. 4, pressing portion 8a is expanded (arrow a3), and pressing portion 8B is expanded (arrow B3). The intermediate dehydration operation is performed for a predetermined time (for example, 1 minute).
The air sucked together with the washing water enters the gas-liquid separation unit 30 from the suction port 25 through the suction path 27 and the secondary-side communication port 31. Then, the liquid is sucked into the pump 10 from the primary communication port 33 and discharged to the pressing portion 8. The washing water falls from the secondary side communication port 31 by gravity. Further, the barrier wall 34 provided between the primary side communication port 33 and the secondary side communication port 31 allows the cleaning water to be stored in the gas-liquid separation portion 30 without entering the primary side communication port 33.
In the rinsing operation with water stored, water supply valve 14 is opened to supply a predetermined amount of washing water into washing tub 4. Then, the pump 10 is driven in the same manner as in the washing step. Then, the expansion and contraction of the pressing portions 8a and 8b are alternately repeated to dilute the detergent concentration of the washing water in the object 2 to be washed. The rinsing process is repeated a plurality of times (e.g., twice).
The control unit 39 performs the spin-drying process after the rinsing process. Fig. 4 is an operation diagram showing an operation in the dehydration step of the washing machine according to the present embodiment. In the dehydration step, a drainage operation and a final dehydration operation are performed.
First, the controller 39 performs a water discharge operation. That is, the drain valve 22 is opened to drain the washing water in the washing tub 4 to the outside through the drain passage 23 from the drain hole 21. At this time, air volume adjusting valve 29 is opened to communicate the inside and outside of washing tub 4, and the washing water is smoothly discharged. Further, the air volume adjusting valve 29 is opened, all the opening/closing units 11 are closed, and the dehydration drain valve 36 is closed.
The controller 39 performs the final dewatering operation after the completion of the draining operation. The controller 39 opens the opening/closing unit 11 and the suction path opening/closing unit 27a in a state where the drain valve 22 is closed, and sets the air volume adjustment valve 29 to a predetermined opening degree. Further, control unit 39 switches 1 st switching unit 26a so that discharge port 10a and pressing unit 8a communicate with each other via 1 st path 9a and discharge port 10a and pressing unit 8b communicate with each other via 2 nd path 9 b. That is, all the pressing portions 8 are switched to be communicated to supply air. This allows the pressing portion 8 to communicate with the outside air, and the inside becomes the atmospheric pressure. Further, the control section 39 closes the 2 nd switching section 26b to shut off the communication between the suction port 10b and all the pressing sections 8.
Subsequently, the controller 39 drives the pump 10. Pump 10 sucks the air in washing tub 4 and the washing water in object 2 through suction path 27 from suction port 25. The sucked washing water flows out from the washing tub 4 to the suction path 27 through the suction port 25 as indicated by an arrow C3, and moves to and is stored in the gas-liquid separation unit 30.
The air in the suctioned cleaning tank 4 is supplied to the pressing portions 8a and 8b through the 1 st path 9a and the 2 nd path 9b via the gas-liquid separation portion 30 and the pump 10. Thereby, as shown in fig. 4, pressing portion 8a is expanded (arrow a3), and pressing portion 8B is expanded (arrow B3).
When the air in washing tub 4 is sucked, the outside air is introduced from outside air introduction section 28 into washing tub 4. However, when air volume adjustment valve 29 is throttled, sufficient outside air cannot be sucked, and the inside of washing tub 4 is depressurized to a pressure lower than that of the outside air. In this case, the supply of air from the pump 10 is small. Therefore, the external air flows from open/close portion 11 to the inside of pressing portion 8 by the pressure difference between the external air and the inside of washing tub 4, and pressing portion 8 is expanded to press object to be washed 2.
By the structure and action of the pressing portion 8, the pressing surface 8c can be pressed by being brought into close contact with the object 2 to be cleaned. The washing water contained in the inside of the object 2 to be washed can be forcibly pushed out.
The outside air flowing into washing tub 4 from outside air introduction unit 28 pushes out the washing water accumulated between the fibers of object 2 to be washed, and moves the washing water toward suction port 25. The washing water sent to the suction port 25 is sent from the suction port 25 to the gas-liquid separation unit 30 through the suction path 27, and is effectively dehydrated from the object 2 to be washed.
In addition, when the cleaning water and the air in the cleaning tank 4 are sucked, the cleaning water and the air pass through the path with the least resistance. Therefore, a short-circuit path containing no washing water is formed inside the object 2 to be washed as the dehydration progresses. The air flow of the air is concentrated on the short-circuited path, and the suction of the washing water is stopped.
However, in the present embodiment, since the object 2 to be cleaned is always pressurized at a constant pressure by the pressing portion 8, the formation of the short-circuit path is suppressed. This promotes the suction and dehydration of the washing water sucked together with the outside air introduced into washing tub 4 without stagnation. In this way, the pressing portion 8 is expanded by the pump 10, and the pressing surface 8c of the pressing portion 8 is brought into close contact with the object 2 to be washed, thereby uniformly pressing the object. As a result, the outside air can be introduced into the inside of the object 2 to be cleaned, and a predetermined dewatering performance can be obtained.
The control unit 39 uses the pump 10 to suck the washing water together with the outside air introduced into the washing tub 4. When a predetermined time (for example, 4 minutes) has elapsed, the driving of the pump 10 is stopped, and the dehydration step is ended.
In the dehydration step, when the washing water flows into the gas-liquid separation unit 30 in excess of the set amount, the control unit 39 stops the pump 10 when the overflow detection unit 38 detects this. Then, the closed dehydration drain valve 36 is opened to discharge the washing water to the outside.
In the present embodiment, in the intermediate dehydration operation and the dehydration step, air sucked together with the washing water from the inside of washing tub 4 is supplied to pressing section 8 via pump 10 and moved. However, the air may be discharged to the outside without moving to the pressing portion 8.
In the present embodiment, the 1 st switching part 26a is provided at the branching part of the pressurizing path 9, and the 2 nd switching part 26b is provided at the branching part of the depressurizing path 90. However, the present invention is not limited to this configuration, and may be configured as follows: a pressurizing path and a pressure reducing path are provided for each of the plurality of pressing portions, and an on-off valve for opening and closing each path is provided.
In the dehydration step, opening/closing section 11 is opened, and the interior of pressing section 8 is opened to the atmosphere, and pressing is performed by the pressure difference with the interior of washing tub 4. However, the pump 10 may be driven by closing the opening/closing unit 11. With this configuration, pressing is performed in a state where the interior of pressing portion 8 is raised to a predetermined pressure by supplying air to pressing portion 8 through outside air introduction portion 28. Thereby, dehydration proceeds more strongly than when the atmosphere is opened. However, since the pressure difference between the inside of the pressing portion 8 and the inside of the washing tub 4 increases, the pressing portion 8 is reinforced, and the setting of the predetermined pressure is considered. Further, it is desirable to set the predetermined pressure in consideration of the influence on delicate laundry.
As described above, the washing machine of the present embodiment includes: a washing tank 4 for storing the object 2 to be washed and washing water; a pressing portion 8 for pressing the object 2 to be cleaned in the cleaning tank 4; a pump 10 (pressurizing unit) for supplying air to the pressing unit 8 to pressurize the same; a pump 10 (suction unit) for sucking washing water from the object 2 to be washed; a pressurizing path 9 connecting the pressing portion 8 and a discharge port 10a of the pump 10; a suction path 27 connecting the cleaning tank 4 and the suction port 10b of the pump 10; and a control unit 39 for controlling the washing step, the rinsing step, and the spin-drying step to perform the washing operation. The control unit 39 is configured to perform press washing for pressing the object 2 by supplying air to the pressing portion 8 in the washing step, and to perform suction dehydration for sucking the washing water from the object 2 in the dehydration step. The washing machine is further provided with a pump 10, and the pump 10 has a discharge port 10a and a suction port 10b and also serves as a pressurizing unit and a suction unit.
Thus, the object 2 to be washed, which is not suitable for washing or squeezing by applying a mechanical force to the object 2 to be washed, can be efficiently washed and dewatered without damaging the object 2 to be washed by pressing the object 2 to be washed in the washing step to wash the object and by sucking the washing water from the object 2 to be washed in the dewatering step to dewater the object. Further, since the pressurizing operation in the washing step and the sucking operation in the dewatering step can be performed by one pump 10, the structure can be simplified and downsized.
In addition, the washing machine of the present embodiment is provided with a plurality of pressing portions 8, and includes: a decompression path 90 connecting the pressing portion 8 and the suction port 10 b; a1 st switching portion 26a provided in the pressurizing path 9 and switching communication between the plurality of pressing portions 8 and the discharge port 10 a; and a2 nd switching portion 26b provided in the pressure reducing path 90 and switching communication between the plurality of pressing portions 8 and the suction port 10 b. The control unit 39 is configured to drive the pump 10 in the washing step and switch the 1 st switching unit 26a and the 2 nd switching unit 26b to repeat the operation of discharging the air sucked from one pressing unit 8a to the other pressing unit 8b and the operation of discharging the air sucked from the other pressing unit 8b to the one pressing unit 8a, so that the pressing units 8a and 8b are alternately expanded and contracted to press the object 2 to be washed.
Thus, the pump 10 moves air between the plurality of pressing portions 8, alternately presses different portions of the object 2 to be washed, and performs press washing. Therefore, the amount of air in cleaning tank 4 does not change during the cleaning process, and the pressing force can be kept constant, so that the object to be cleaned can be cleaned efficiently.
In the washing machine of the present embodiment, the suction path 27 is provided with the gas-liquid separation unit 30, and the gas-liquid separation unit 30 separates the air sucked from the washing tub 4 from the washing water. In the dehydration step, controller 39 is configured to drive pump 10 to suck the air and the washing water in washing tub 4 and to accumulate the washing water in gas-liquid separator 30.
This enables the pump 10 to efficiently suck the washing water from the object 2 to be washed and dewater the water, thereby saving space and efficiently dewatering the water.
The washing machine of the present embodiment is provided with an opening/closing unit 11, and the opening/closing unit 11 opens and closes to communicate the inside of the pressing unit 8 with the outside air. In the dehydration step, control unit 39 is configured to open opening/closing unit 11 and drive pump 10 to suck the washing water contained in object to be washed 2 in washing tub 4, to reduce the pressure inside washing tub 4, to make the insides of pressing portions 8a and 8b at atmospheric pressure via opening/closing unit 11, and to press object to be washed 2 by pressing portion 8.
This allows the object 2 to be washed to be pressed by the pressure difference between the inside of washing tub 4, which has been depressurized by suction with pump 10, and pressing section 8, which is opened to the atmosphere by opening/closing section 11. Therefore, the dewatering can be efficiently performed with a simple configuration without depending on the amount of air sucked from the object 2 to be cleaned.
In addition, in washing machine 1 of the present embodiment, switching is performed so that discharge port 10a of pump 10 communicates with any one of plurality of pressing portions 8, or discharge port 10a communicates with all pressing portions 8. The 2 nd switching portion 26b is configured to switch between communicating the suction port 10b of the pump 10 with any one of the pressing portions 8 and blocking communication between the suction port 10b and all the pressing portions 8.
Thus, the control unit 39 can move the air with a simple configuration, and can realize stable cleaning performance and dehydration performance.
In addition, the washing machine of the present embodiment is provided with an outside air introducing portion 28, and the outside air introducing portion 28 introduces outside air into the interior of washing tub 4. The controller 39 is configured to drive the pump 10 in the dehydration step, press the object to be washed 2 by the pressing portion 8, suck the washing water from the object to be washed 2, and suck the air introduced from the outside air introduction portion 28.
As the pump 10 continues to suck the washing water, the outside air introduced from the outside air introduction portion 28 is introduced into the inside of the object 2 to be washed. Thereby, the washing water inside the object 2 is pushed out to the outside of the object 2 by the air and sucked. Therefore, the dehydration can be efficiently performed with a simple configuration.
Industrial applicability
As described above, the washing machine of the present disclosure can efficiently perform washing and dehydration without damaging the objects to be washed. Further, the washing operation from the washing step to the dehydration step can be performed by one pump. Thus, the washing machine can be simplified and miniaturized in structure, and is useful as a washing machine.
Description of the reference numerals
1. A washing machine; 2. an object to be cleaned; 4. a cleaning tank; 7(7a, 7b), a pressure increasing and reducing section; 8(8a, 8b), a pressing portion; 9. a pressurizing path; 90. a decompression path; 10. a pump (pressurizing part, suction part); 10a, a discharge port; 10b, a suction inlet; 11(11a, 11b), an opening/closing section; 26a, the 1 st switching unit; 26b, the 2 nd switching part; 27. an attraction path; 27a, a suction path opening/closing section; 28. an outside air introduction part; 29. an air volume adjusting valve; 30. a gas-liquid separation section; 39. a control unit.
Claims (6)
1. A washing machine, wherein,
the washing machine includes:
a washing tank for storing an object to be washed and washing water;
a pressing portion for pressing an object to be cleaned in the cleaning tank;
a pressurizing unit for supplying air to the pressurizing unit to pressurize the pressing unit;
a suction unit for sucking washing water from the object to be washed;
a pressurizing path connecting the pressing portion and a discharge port of the pressurizing portion;
a suction path connecting the cleaning tank and a suction port of the suction unit; and
a control part for controlling the washing process, the rinsing process and the dewatering process to execute the washing operation,
the control unit is configured to drive the pressurizing unit to supply air to the pressing unit in the washing step to perform press washing for pressing the object to be washed, and to drive the suction unit to perform suction and dehydration for sucking washing water from the object to be washed in the dehydration step,
the washing machine is provided with a pump having the discharge port and the suction port and serving as both the pressure section and the suction section.
2. The washing machine according to claim 1, wherein,
a plurality of pressing parts are arranged on the base,
the washing machine further includes:
a decompression path connecting the pressing portion and the suction port;
a1 st switching unit provided in the pressure path and configured to switch communication between the plurality of pressing units and the discharge port; and
a2 nd switching part provided in the pressure reducing path and switching communication between the plurality of pressing parts and the suction port,
the control unit is configured to drive the pump in the washing step and switch the 1 st switching unit and the 2 nd switching unit, respectively, to repeat an operation of discharging air sucked from one of the pressing portions to the other of the pressing portions and an operation of discharging air sucked from the other of the pressing portions to the one of the pressing portions, and to alternately expand and contract the pressing portions to press the object to be washed.
3. The washing machine according to claim 1, wherein,
the suction path is further provided with a gas-liquid separation section for separating the air sucked from the cleaning tank from the cleaning water,
the control unit is configured to, in the dehydration step, drive the pump to suck air and wash water in the washing tub, and accumulate the wash water in the gas-liquid separation unit.
4. The washing machine according to claim 1, wherein,
the washing machine is also provided with an opening and closing part which can be opened and closed and enables the interior of the pressing part to be communicated with the outside air when the washing machine is opened,
the control unit is configured to open the opening/closing unit and drive the pump to suck the washing water contained in the object to be washed in the washing tank, reduce the pressure in the washing tank, and cause the pressing unit to press the object to be washed by setting the interior of the pressing unit to atmospheric pressure via the opening/closing unit.
5. The washing machine according to claim 2, wherein,
the 1 st switching unit is configured to switch to communicate the discharge port with any one of the pressing units or communicate the discharge port with all of the pressing units,
the 2 nd switching unit is configured to switch between communicating the suction port with any one of the pressing units or blocking communication between the suction port and all of the pressing units.
6. The washing machine according to any one of claims 1 to 5,
the washing machine is further provided with an external air introduction part for introducing external air into the washing tub,
the control unit is configured to drive the pump in the dehydration step, press the object to be washed by the pressing unit, suck the washing water from the object to be washed, and suck the air introduced from the outside air introduction unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017025188A JP6990824B2 (en) | 2017-02-14 | 2017-02-14 | washing machine |
| JP2017-025188 | 2017-02-14 | ||
| PCT/JP2018/003931 WO2018150941A1 (en) | 2017-02-14 | 2018-02-06 | Washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110226002A CN110226002A (en) | 2019-09-10 |
| CN110226002B true CN110226002B (en) | 2021-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880008166.4A Active CN110226002B (en) | 2017-02-14 | 2018-02-06 | Washing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6990824B2 (en) |
| CN (1) | CN110226002B (en) |
| WO (1) | WO2018150941A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7261960B2 (en) * | 2019-08-21 | 2023-04-21 | パナソニックＩｐマネジメント株式会社 | washing machine |
| CN114592310B (en) * | 2022-03-31 | 2023-02-17 | 珠海格力电器股份有限公司 | Door body washing mechanism with dehydration function and washing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6990824B2 (en) | 2022-01-12 |
| JP2018130239A (en) | 2018-08-23 |
| WO2018150941A1 (en) | 2018-08-23 |
| CN110226002A (en) | 2019-09-10 |
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