CN111826881A - Control method of drum washing machine and drum washing machine - Google Patents

Control method of drum washing machine and drum washing machine Download PDF

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Publication number
CN111826881A
CN111826881A CN201910311729.3A CN201910311729A CN111826881A CN 111826881 A CN111826881 A CN 111826881A CN 201910311729 A CN201910311729 A CN 201910311729A CN 111826881 A CN111826881 A CN 111826881A
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China
Prior art keywords
inner cylinder
water
drum
washing machine
washing
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CN201910311729.3A
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Chinese (zh)
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CN111826881B (en
Inventor
赵志强
许升
吕佩师
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Qingdao Haier Washing Electric Appliance Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Drum Washing Machine Co Ltd
Qingdao Haier Co Ltd
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Priority to CN201910311729.3A priority Critical patent/CN111826881B/en
Publication of CN111826881A publication Critical patent/CN111826881A/en
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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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • D06F23/025—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis with a rotatable imperforate tub
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention provides a control method of a roller washing machine and the roller washing machine, the roller washing machine comprises a first inner cylinder and a second inner cylinder arranged in the first inner cylinder, the second inner cylinder is provided with a sealable independent washing chamber, and washing water is independently contained when clothes are washed. The control method of the drum washing machine realizes the working conditions of water inlet, washing, dehydration, drainage and the like when the first inner cylinder works independently and the second inner cylinder works independently or the first inner cylinder and the second inner cylinder work together by controlling the first inner cylinder and/or the second inner cylinder to operate, thereby achieving the purpose of carrying out the partitioned independent washing on the clothes in the first inner cylinder or the second inner cylinder.

Description

Control method of drum washing machine and drum washing machine
Technical Field
The invention relates to the technical field of laundry equipment, in particular to a control method of a roller washing machine and the roller washing machine.
Background
The washing machine is used as a household appliance which is widely used in daily life of people, helps people get rid of the trouble of washing clothes, and brings great convenience to people. However, as the living standard of people increases, the washing requirements of the washing machine are more and more, and particularly, as different types of clothes cannot be mixed in the same washing drum for washing, or clothes of each family member cannot be mixed in the same washing drum for washing, the requirement of separate washing in different areas is met.
For the purpose of solving the zoned independent wash, prior application No. 201410806293.2, entitled: the invention provides a double-drum washing machine, which comprises a shell, a control panel, a first containing cavity and a second containing cavity, wherein the first containing cavity and the second containing cavity are concentric, the radius of the second containing cavity is smaller than that of the first containing cavity, and the control panel can control the first containing cavity and the second containing cavity to work simultaneously or control the first containing cavity and the second containing cavity to work independently. The invention has the advantages that the space occupied by the washing machine is simplified through the ingenious design of the structure, underwear and outer garments can be washed in one washing process, light-color clothes and dark-color clothes can be washed, the energy consumption is saved, the washing requirements of different clothes are met, and a good washing effect is achieved.
Although the drum washing machine disclosed by the invention patent is provided with the first cavity and the second cavity to meet the washing requirements of different clothes, when the first cavity and the second cavity work substantially simultaneously, the two cavities are communicated due to the fact that the inner barrel is provided with the dehydration hole, and independent partition washing of the two cavities cannot be realized.
In addition, the demand for water saving and self-cleaning of the washing machine is also increasing.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
In order to solve the above problems, a first aspect of the present invention is to provide a control method for a drum washing machine, specifically, the following technical solutions are adopted:
a control method of a roller washing machine comprises a first inner barrel and a second inner barrel arranged in the first inner barrel, wherein the second inner barrel is provided with an independent washing chamber capable of being sealed and independently contains washing water when clothes are washed, and the roller washing machine controls the first inner barrel and/or the second inner barrel to operate and independently washes the clothes in the first inner barrel or the second inner barrel in a partition mode.
Furthermore, the second inner cylinder is a non-porous cylinder, an openable/closable second inner cylinder door is installed on a cylinder opening of the second inner cylinder, the second inner cylinder door closes an independent washing chamber which can be closed together with the non-porous cylinder, and the drum washing machine further comprises a water inlet system communicated with the interior of the second inner cylinder;
the control method comprises an independent working mode of the second inner cylinder, wherein in the water inlet process, the second inner cylinder is controlled to keep static, and water in the water inlet system only enters the second inner cylinder.
Furthermore, a second water outlet is formed in the side wall of the second inner cylinder, and a second centrifugal valve used for keeping the water outlet normally closed is arranged on the second water outlet;
the control method comprises the following steps: the washing machine controls the rotating speed of the second inner barrel to exceed a second set value N2, the second centrifugal valve opens the second water outlet, and water in the second inner barrel is discharged into the first inner barrel.
Furthermore, the device comprises a common working mode of the first inner cylinder and the second inner cylinder, wherein in the water inlet process, the rotating speed of the second inner cylinder is controlled to exceed a second set value N2, the second centrifugal valve opens the second water outlet, and water entering the second inner cylinder from the water inlet system is discharged into the first inner cylinder;
when the water level in the first inner cylinder reaches a set value, the rotating speed of the second inner cylinder is controlled to be lower than a second set value N2 or kept static until the water level in the second inner cylinder reaches the set value, and the water inlet system stops water inlet.
Further, in the drainage process or the dehydration process, the rotating speed of the second inner cylinder is controlled to exceed a second set value N2, the second centrifugal valve opens the second water outlet, and water in the second inner cylinder is drained into the first inner cylinder and is drained through the first inner cylinder.
Furthermore, the first inner cylinder is a nonporous cylinder, a first inner cylinder door capable of being opened/closed is installed on a cylinder opening of the first inner cylinder, the first inner cylinder door and the nonporous cylinder form a washing chamber capable of being closed and independent, a first water discharge port is formed in the side wall of the first inner cylinder, and a first centrifugal valve used for keeping the water discharge port normally closed is arranged on the first water discharge port;
the control method comprises the following steps: in the water inlet process, the rotating speed of the second inner cylinder is controlled to be larger than or equal to a second set value N2 and smaller than a first set value N1, the second centrifugal valve opens the second water outlet, the first centrifugal valve keeps the first water outlet closed, and water entering the second inner cylinder from the water inlet system is discharged into the first inner cylinder, wherein the second set value N2 is smaller than the first set value N1.
Further, in the drainage process or the dehydration process, the first inner cylinder and the second inner cylinder are controlled to synchronously rotate at a rotating speed which is greater than a first set value N1, the second centrifugal valve opens the second water outlet, the first centrifugal valve opens the first water outlet, and water in the second inner cylinder is discharged into the first inner cylinder through the second water outlet and is discharged through the first water outlet of the first inner cylinder.
Further, in the washing or rinsing process, the first inner cylinder and the second inner cylinder are controlled to synchronously rotate at a rotating speed less than a second set value N2, the first centrifugal valve keeps the first water outlet closed, and the second centrifugal valve keeps the second water outlet closed.
Further, the control method comprises a second inner cylinder independent working mode, wherein the washing machine controls the second inner cylinder and the first inner cylinder to rotate together at a rotating speed less than a second set value N2 to execute a washing working condition, and controls the second inner cylinder and the first inner cylinder to rotate together at a rotating speed greater than a first set value N1 to execute a drainage or dehydration working condition.
The second purpose of the present invention is to provide a drum washing machine, specifically, the following technical solutions are adopted:
a drum washing machine adopting the control method.
The first inner cylinder of the drum washing machine can be used as an independent washing cylinder to independently wash clothes, the second inner cylinder is provided with an independent washing chamber which can be closed, and can also be used as an independent washing cylinder to independently wash clothes, and the second inner cylinder is provided with an independent washing chamber which can be closed, so that washing water is independently contained when the clothes are washed, and therefore, when the first inner cylinder and the second inner cylinder are washed simultaneously, water in the two cylinders cannot be mixed with each other, and the two cylinders can be independently washed in a subarea mode at the same time.
Therefore, the drum washing machine can realize that one driving motor drives the inner cylinders with various specifications, one inner cylinder runs and washes or a plurality of inner cylinders wash simultaneously, the appearance of only one washing machine is realized, a plurality of independent washing subareas of one motor of one washing machine are really realized, the functions of washing subareas such as exclusive washing for babies, washing underwear, washing clothes for the old, washing socks and the like are easily realized, the washing effect is improved, and the user experience is improved.
The invention provides a drum washing machine with a non-porous inner barrel front opening structure, which has a simple structure, and can greatly reduce the washing water consumption of the washing machine without filling washing/rinsing water between an inner barrel and an outer barrel. The possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided. The user health and user experience are greatly improved, and water resources are greatly saved.
The control method of the drum washing machine realizes the working conditions of water inlet, washing, dehydration, drainage and the like when the first inner cylinder works independently and the second inner cylinder works independently or the first inner cylinder and the second inner cylinder work together by controlling the first inner cylinder and/or the second inner cylinder to operate, thereby achieving the purpose of carrying out the partitioned independent washing on the clothes in the first inner cylinder or the second inner cylinder.
Drawings
FIG. 1 is a schematic view of a drum washing machine according to an embodiment of the present invention;
FIG. 2 is a schematic view of a second drum washing machine according to an embodiment of the present invention (first embodiment);
FIG. 3 is a schematic view of a drum washing machine according to a second embodiment of the present invention (second embodiment);
FIG. 4 is a schematic view of a drum washing machine according to an embodiment of the present invention (embodiment III);
FIG. 5 is a schematic view of a three-drum washing machine according to an embodiment of the present invention;
FIG. 6 is a partially enlarged view (pressure relief state) of FIG. 5 of a three-drum washing machine according to an embodiment of the present invention; (ii) a
FIG. 7 is a partially enlarged view (pressurized state) of FIG. 5 of the three-drum washing machine according to the embodiment of the present invention;
FIG. 8 is a schematic view of a four-drum washing machine according to an embodiment of the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 8 of a four-drum washing machine according to an embodiment of the present invention (in a pressure-released state in the first embodiment);
FIG. 10 is an enlarged view of a portion of FIG. 8 of a four-drum washing machine according to an embodiment of the present invention (pressurized state in the first embodiment);
FIG. 11 is an enlarged view of a portion of FIG. 8 of a four-drum washing machine according to an embodiment of the present invention (in a pressure-released state in the second embodiment);
FIG. 12 is an enlarged view of a portion of FIG. 8 of a four-drum washing machine according to an embodiment of the present invention (pressurized state in the second embodiment);
fig. 13 is a schematic view of a five-drum washing machine according to an embodiment of the present invention.
Detailed Description
A drum washing machine and a control method thereof according to the present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1 to 13, the present embodiment provides a drum washing machine with a non-porous inner drum front opening structure, which has a simple structure, and can greatly reduce the amount of washing water of the washing machine without filling washing/rinsing water between the inner drum and the outer drum. The possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided. The user health and user experience are greatly improved, and water resources are greatly saved.
The drum washing machine of the present embodiment has a housing 19, and the housing 19 includes: a top deck 2, a front panel, a back panel and a bottom panel. The bottom plate is provided with feet 9 for supporting the whole washing machine. The outer casing 19 has an outer cylinder 18 inside, and an inner cylinder 17 is coaxially disposed inside the outer cylinder 18. The outer cylinder 18 is mainly used for collecting the drainage of the inner cylinder 17 and the drainage of the inner cylinder 17 by high-speed centrifugal dehydration. The drum 17 rotates, preferably with lifting ribs 43, and is continuously lifted and dropped to beat the laundry, so as to wash the laundry. The inner barrel 17 is of non-porous construction. The outer cylinder 18 has a central mounting hole to which the bearing 12 is fixedly mounted. An inner drum shaft 13, which is fixedly connected to the inner drum 17, passes through the bearing 12 shown and is connected to a drive motor 16. An openable/closable inner cylinder door 6 is installed on a front cylinder opening of the inner cylinder 17, thereby realizing that the inner cylinder 17 is of a sealed cabin structure.
The housing 19 of this embodiment is provided with an openable/closable door 5.
Example one
The embodiment mainly solves the problem of how to accurately determine the water inflow of the drum washing machine with the non-porous inner drum, and the specific scheme is as follows:
a drum washing machine comprises an inner drum 17 and a water inlet pipeline communicated with the inner drum 17, wherein the inner drum 17 is a non-porous inner drum and is used for containing washing water when clothes are washed, and a flow sensor 1 used for detecting the flow of the inlet water is arranged on the water inlet pipeline.
In the embodiment, the flow sensor 1 is arranged on the water inlet pipeline to monitor the flow of inlet water, and when the set water inflow is reached, the water inlet valve 20 is closed to finish water inlet. The embodiment adopts the flow sensor to solve the problem of water inlet of the drum washing machine with the non-porous inner drum according to the set water level, ensures the washing effect, has simple structure and is convenient to control.
Further, the drum washing machine of the embodiment includes a water inlet valve 20 and a detergent box 3, the water inlet pipeline includes a first water inlet pipe and a second water inlet pipe, the outlet end of the water inlet valve 20 is communicated with the detergent box 3 through the first water inlet pipe, the outlet end of the detergent box 3 is communicated with the inner barrel 17 through the second water inlet pipe, and the flow sensor 1 is arranged on the first water inlet pipe or the second water inlet pipe.
Preferably, the flow sensor 1 is disposed on the first water inlet pipe, so that the detergent in the detergent box can be placed into the flow sensor 1.
The drum washing machine of the embodiment comprises a main controller 4, and the flow sensor 1 is electrically connected with the main controller 4 through a line. The main controller 4 can collect the water inflow of the inner cylinder 17 in real time to reach the set water inflow, and the water inlet valve 20 is closed.
As an implementation manner of this embodiment, the flow sensor 1 is a rotor flow sensor, or a turbine flow sensor, or an ultrasonic flow sensor, or an electromagnetic flow sensor, or an orifice flow sensor.
In this embodiment, the flow sensor 1 may be disposed at any position on the water inlet pipeline, preferably, at the rear portion of the water inlet valve 20, and precisely measures the water flow entering the sealed inner cylinder 17, the flow sensor 1 is connected to the main controller 4 through a line, and the main controller 4 may collect the water inflow of the inner cylinder 17 in real time to set the water inflow and close the water inlet valve 20.
In order to realize water inlet into the imperforate inner barrel, the drum washing machine of the embodiment comprises a driving motor 16 and an inner barrel shaft 13, wherein the driving motor 16 is in transmission connection with the inner barrel 17 through the inner barrel shaft 13 to drive the inner barrel 17 to rotate, a hollow channel 14 communicated with the inside of the inner barrel 17 is arranged in the inner barrel shaft 13, and a water inlet pipeline is communicated with the hollow channel of the inner barrel shaft 13.
Specifically, the inner cylinder shaft 13 is connected with a driving motor 16, the driving motor 16 comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft 13; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor and is communicated with the hollow channel 14 of the inner cylinder shaft 13.
Furthermore, a first dynamic sealing structure 15 is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel 14 of the inner cylinder shaft 13.
In order to realize the drainage of the imperforate inner cylinder, the drum washing machine of the embodiment comprises an outer cylinder 18, wherein an inner cylinder drainage hole is formed in the side wall of the inner cylinder 17, a normally closed one-way valve plug 11 is installed on the inner cylinder drainage hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open to drain water is installed on the outer cylinder 18.
In an embodiment of the present invention, the outer cylinder 18 is further provided with a locking mechanism for locking the rotation of the inner cylinder 17, and the locking mechanism pushes the one-way valve plug 11 open to discharge water after the inner cylinder is locked by the push rod mechanism 10.
As another implementation manner of this embodiment, in this embodiment, a plurality of dewatering holes are formed in the side wall of the inner cylinder 17, centrifugal valves are installed on the dewatering holes, and the centrifugal valves are opened under the action of the dewatering centrifugal force to perform washing drainage or dewatering drainage by controlling the inner cylinder to reach a certain rotation speed.
The present embodiment also provides a control method for the drum washing machine, in which the washing machine executes a washing/rinsing procedure, the flow sensor detects a water inlet flow value in real time during a water inlet process, the washing machine calculates a water inlet flow according to the water inlet flow value and the water inlet time, and stops water inlet when the water inlet flow reaches a set water inlet flow of the washing machine.
The drum washing machine is provided with a plurality of water inlet flow values for users to select, and the washing machine carries out water inlet according to the water inlet flow values selected by the users.
The drum washing machine has a clothes weighing function, and can determine the flow value of inlet water according to the weight of clothes to carry out water inlet.
Example two
As shown in fig. 2-4, the drum washing machine of the embodiment includes an inner drum 17 and a water inlet pipeline, the inner drum is a non-porous inner drum and is used for containing washing water when washing clothes, and the drum washing machine further includes a water measuring device for measuring the water inlet quantity, the water inlet pipeline is communicated with the water measuring device, and the water measuring device is communicated with the inner drum.
The drum type washing machine of this embodiment carries out the ration volume through setting up water gaging device, carries out the number of times of water gaging device water gaging according to the water level determination that sets for in advance to intaking in 1 of inner tube to solved sclausura inner tube drum type washing machine according to the problem of intaking of setting for the water level, ensured washing effect, simple structure controls the convenience.
Further, the water measuring device of the embodiment comprises a water measuring tank 21, wherein the water measuring tank 21 is provided with a water inlet and a water outlet, the water inlet is communicated with the water inlet pipeline, and the water outlet is communicated with the inner barrel 17; and the water outlet is provided with a water outlet control device for controlling the opening of the water outlet when the water quantity in the equivalent water tank 21 reaches a set value.
As an embodiment of this embodiment, as shown in fig. 2, the water measuring tank 21 is disposed at the bottom of the inner tub 17, the water measuring device includes a water level detecting device 22 for detecting the water measuring tank 21, the water outlet control device is a water tank draining pump 23, and the water tank draining pump 23 starts the water tank draining pump 23 to pump the water in the water measuring tank 21 into the inner tub 17 when the water level detecting device 22 detects that the water level in the water measuring tank 21 reaches a set value.
As an embodiment of this embodiment, as shown in fig. 3, the water measuring tank 21 is disposed on the upper portion of the inner cylinder 17, the water measuring device includes a water level detecting device 22 for detecting the water measuring tank, the water outlet control device is a water tank drain valve 25, and the water tank drain valve 25 opens to drain the water in the water measuring tank 21 into the inner cylinder when the water level detecting device 22 detects that the water level in the water measuring tank 21 reaches a set value.
The water level detecting device 22 described in this embodiment is a liquid level sensor, which includes an air chamber and a sensor unit, and the air chamber is communicated with the water measuring tank. Alternatively, the water level detecting device 22 includes a plurality of water level detecting probes arranged in the water measuring tank along the depth direction thereof.
As an implementation manner of this embodiment, the water measuring tank 21 is disposed on the upper portion of the inner cylinder 17, the water outlet is disposed on the bottom wall of the water measuring tank 21, the water outlet control device is a tank check valve for keeping the water outlet normally closed, when the amount of water in the water measuring tank reaches a certain value, the tank check valve is opened under the action of water pressure gravity, and after the water in the water measuring tank 21 is discharged into the inner cylinder 17, the tank check valve is reset to keep the water outlet closed.
The water measuring tank 21 described in this embodiment is provided with an overflow hole 24, and the overflow hole 24 is connected to an overflow pipe for guiding out water overflowing from the water measuring tank.
Preferably, the drum washing machine comprises a drain line 8, said overflow line communicating with the drain line 8.
As an embodiment of the present embodiment, as shown in fig. 4, the water measuring device includes a heating device 26 disposed in the water measuring tank 21 and a water temperature detecting device for detecting the temperature of water in the water measuring tank.
The present embodiment also provides a control method of the drum washing machine, where the washing machine executes a washing/rinsing procedure, the washing machine controls washing water to enter the water measuring tank, when the water amount in the water measuring tank reaches a set value, water inflow is stopped, water in the water measuring tank is completely discharged into the inner drum, water inflow is restarted to enter the water measuring tank, and the above-mentioned steps are repeated until the water level in the inner drum reaches the set value, and water inflow is ended.
Furthermore, the washing machine controls the washing water to enter the water measuring tank, when the water amount in the water measuring tank reaches a set value, the water stops entering, the heating device is controlled to operate to heat the washing water, and when the water temperature detection device detects that the water temperature in the water measuring tank reaches the set value, all the water in the water measuring tank is discharged into the inner barrel.
EXAMPLE III
The embodiment mainly solves the problem of how to ensure the unbalanced air pressure of the sealed cabin of the drum washing machine with the non-porous inner barrel, and particularly, the water is cut off by a sudden electromagnetic valve, particularly a tap water pipe network to form negative pressure, and washing water in the sealed cabin is backwashed to the pipe network; or the inside has gas, the problem of difficult water intake.
As shown in fig. 5-7, the drum washing machine of the present embodiment includes an inner drum 17, the inner drum 17 is a non-porous inner drum, and is used for containing washing water when washing clothes, and further includes an air pressure balancing mechanism for communicating the inner drum 17 with the external environment to balance the air pressure inside the inner drum.
When water enters, the air in the sealed cabin of the inner cylinder is pressurized and can overflow through the balancing mechanism, so that the air pressure balance is ensured.
When water is cut off suddenly, external atmosphere can enter the sealed cabin of the inner barrel rapidly, suck back is damaged, air pressure balance is guaranteed, and washing water is prevented from being sucked into a tap water pipe network.
Other air pressure balancing mechanisms can also ensure the air pressure balance of the inner cylinder during dehydration.
As an implementation manner of this embodiment, the air pressure balancing mechanism includes a pressure equalizing hole 27 disposed on the inner barrel 17, and one end of the pressure equalizing hole 27, which is communicated with the inside of the inner barrel 17, is disposed on the inner barrel 17 at a position close to the central rotation axis and is always higher than the highest water level position in the inner barrel 17.
The drum washing machine of the embodiment comprises a driving motor 16 and an inner drum shaft 13, wherein the driving motor 16 is in transmission connection with the inner drum 17 through the inner drum shaft 13 to drive the inner drum 17 to rotate, a pressure equalizing pore passage 27 is formed in the inner drum shaft 13 to communicate the inside of the inner drum 17 with the external environment, and the highest water level in the inner drum 17 is lower than that of the inner drum shaft 13. Thus, the water in the inner cylinder can be prevented from flowing out of the pressure equalizing pore passage.
The drum washing machine of the embodiment comprises an outer drum 18, wherein the inner drum 17 is arranged inside the outer drum 18, water discharged from the inner drum 17 is discharged through the outer drum 18, an inner drum door 6 for sealing the inner drum is arranged at the opening of the inner drum 17, the opening of the outer drum 18 is open, one end of a pressure equalizing channel 27 is communicated with the inside of the inner drum 17, and the other end of the pressure equalizing channel is arranged inside the outer drum 18 and communicated with the inside of the outer drum 18. In this way, the bore effluent is prevented from being collected within the outer cartridge 18.
Furthermore, in this embodiment, an inner cylinder drain hole is formed in a side wall of the inner cylinder 17, a normally closed one-way valve plug 11 is installed on the inner cylinder drain hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open to drain water is installed on the outer cylinder 18.
Preferably, a locking mechanism for locking the rotation of the inner cylinder is further arranged on the outer cylinder 18, and the push rod mechanism pushes the one-way valve plug open for drainage after the locking mechanism locks the inner cylinder.
Further, the drum washing machine of the present embodiment includes a water inlet pipeline, the inner drum shaft 13 has a hollow channel 14 therein, which is communicated with the inside of the inner drum 17, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressure equalizing pore passage 27 and the hollow channel 14 are respectively communicated with the inside of the inner cylinder 17 and are arranged in a mutually isolated way. Thus, the gas in the sealed cabin of the inner cylinder can be smoothly discharged to keep the air pressure in the inner cylinder balanced, and simultaneously, the water leakage caused by the direct discharge of the inlet water from the pressure equalizing pore passage 27 can be prevented.
Specifically, the hollow channel 27 extends from one end to the other end along the central axis direction of the inner cylinder shaft, the pressure equalizing channel includes a first channel section and a second channel section, the first channel section is arranged in parallel with the hollow channel, one end of the first channel section is communicated with the inside of the inner cylinder, one end of the second channel section is communicated with the first channel section, and the other end of the second channel section extends to the peripheral wall of the inner cylinder shaft and is communicated with the inside of the outer cylinder.
Preferably, the second pore channel section and the first pore channel section are vertically arranged to form an L-shaped pressure equalizing pore channel.
Further, the inner cylinder shaft 13 is connected with a driving motor 16, the driving motor 16 comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor to be communicated with the hollow channel of the inner cylinder shaft.
Preferably, a first dynamic sealing structure is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel of the inner cylinder shaft.
The drum type washing machine of this embodiment, set up a plurality of dehydration holes on the lateral wall of inner tube 17, all install the centrifugal valve on the dehydration hole, the centrifugal valve open under the effect of dehydration centrifugal force and dewater the drainage.
Example four
The embodiment mainly solves the problem of how to ensure the unbalanced air pressure of the sealed cabin of the drum washing machine with the non-porous inner barrel, and particularly, the water is cut off by a sudden electromagnetic valve, particularly a tap water pipe network to form negative pressure, and washing water in the sealed cabin is backwashed to the pipe network; or the inside has gas, the problem of difficult water intake.
As shown in fig. 8-12, the drum washing machine of the present embodiment includes an inner drum 17, the inner drum 17 is a non-porous inner drum, and holds washing water when washing clothes, and further includes a pressurization mechanism and/or a pressure release mechanism for communicating the inner drum with the external environment to balance the air pressure inside the inner drum 17.
The pressurizing mechanism described in this embodiment includes a pressurizing duct 28 and a negative pressure safety valve 29, the negative pressure safety valve 29 is disposed on the pressurizing duct 28, and is used for conducting the pressurizing duct 28 in one way when the internal pressure of the inner cylinder 17 is smaller than the atmospheric pressure of the external environment, the external environment gas enters the inner cylinder 17 from the pressurizing duct 28 to be pressurized until the internal pressure of the inner cylinder 17 is balanced with the atmospheric pressure of the external environment, and the negative pressure safety valve 29 is closed.
The pressure relief mechanism described in this embodiment includes a pressure relief hole 30 and a positive pressure safety valve 31, the pressure relief hole 30 is disposed at a position close to the rotation center axis on the inner cylinder 17 and is always higher than the highest water level position in the inner cylinder 17, the positive pressure safety valve 31 is disposed on the pressure relief hole 30, and is used for conducting the pressure relief hole 30 in one way for pressure relief when the internal pressure of the inner cylinder 17 is greater than the atmospheric pressure of the external environment, until the internal pressure of the inner cylinder 17 is balanced with the atmospheric pressure of the external environment, and the positive pressure safety valve 31 is closed.
As shown in fig. 9, when water enters, the air in the sealed cabin of the inner cylinder 17 is pressurized, and once the pressure is greater than the set value of the positive pressure safety valve, the positive pressure safety valve is opened, and the air can overflow through the pressure relief hole, so that the air pressure balance is ensured.
As shown in fig. 10, when water is suddenly cut off, the air in the sealed cabin of the inner cylinder 17 is pressurized, once the air is smaller than the set value of the positive pressure safety valve, the external atmosphere can rapidly enter the sealed cabin and destroy the suck-back, so that the air pressure balance is ensured, and the washing water is prevented from being sucked into a tap water pipe network.
Other air pressure balancing mechanisms can also ensure the air pressure balance of the inner cylinder during dehydration.
The drum washing machine of the embodiment comprises a driving motor 16 and an inner drum shaft 13, wherein the driving motor 16 is in transmission connection with the inner drum 17 through the inner drum shaft 13 to drive the inner drum 17 to rotate, a pressurizing pore channel 28 and/or a pressure relief pore channel 30 are/is formed in the inner drum shaft 13 to communicate the inside of the inner drum 17 with the external environment, and the highest water level in the inner drum 17 is lower than the inner drum shaft 13.
The drum washing machine of the embodiment comprises an outer drum 18, wherein an inner drum 17 is arranged inside the outer drum 18, water discharged from the inner drum 17 is discharged from the outer drum 18, an inner drum door 6 for sealing the inner drum is installed at a drum opening of the inner drum 17, the drum opening of the outer drum 18 is opened, one end of a pressurizing pore passage 28 and/or a pressure relief pore passage 30 is communicated with the inside of the inner drum 17, and the other end of the pressurizing pore passage and/or the pressure relief pore passage 30 is arranged inside the outer drum 18 and.
The drum washing machine of the embodiment comprises a water inlet pipeline, wherein a hollow channel 14 communicated with the inside of an inner drum 17 is arranged in an inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressure relief duct 30 and the hollow channel 14 are respectively communicated with the interior of the inner cylinder 17 and are arranged in an isolated manner.
As shown in fig. 9 and 10, the hollow channel 14 extends from one end to the other end along the central axis direction of the inner cylinder shaft 13, the pressure relief duct 30 includes a first duct section and a second duct section, the first duct section is arranged in parallel with the hollow channel, one end of the first duct section is communicated with the inside of the inner cylinder, one end of the second duct section is communicated with the first duct section, and the other end of the second duct section extends to the outer peripheral wall of the inner cylinder shaft and is communicated with the inside of the outer cylinder;
preferably, the second duct section and the first duct section are arranged perpendicularly to form an L-shaped pressure relief duct.
The drum washing machine of the embodiment comprises a water inlet pipeline, wherein a hollow channel 14 communicated with the inside of an inner drum 17 is arranged in an inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressurizing port 28 communicates with the hollow passage 14.
Further, the hollow passage 14 extends from one end to the other end along the central axis direction of the inner cylinder shaft 13, one end of the pressurizing duct 28 is communicated with the hollow passage 14, and the other end extends to the outer peripheral wall of the inner cylinder shaft 13 and is communicated with the inside of the outer cylinder 18.
Preferably, the pressurizing port 28 and the hollow passage 14 are arranged perpendicular to each other.
The inner cylinder shaft is connected with the driving motor, the driving motor comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor to be communicated with the hollow channel of the inner cylinder shaft.
Preferably, a first dynamic sealing structure is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel of the inner cylinder shaft.
As shown in fig. 11 and 12, the pressurizing duct 28 and the pressure relief duct 30 are both disposed on the inner cylinder shaft 13, and the openings for communicating with the atmosphere are both inside the outer cylinder 18; the openings of the sealed cabins communicated with the inner cylinder 17 are all arranged at the inner side of the water inlet channel 14 of the inner cylinder shaft 13.
It is contemplated that the preferred pressurization and depressurization passageways 28, 30 are both disposed on the inner barrel shaft 13 and the vent to atmosphere opening is both inside the outer barrel 18; the openings of the sealed cabins communicated with the inner cylinder 17 are all arranged at the inner side of the sealed cabins.
EXAMPLE five
As shown in fig. 13, the drum washing machine of the present embodiment includes a first inner tub 1701 and a second inner tub 1702 disposed inside the first inner tub 1701, wherein the second inner tub 1702 has a closable independent washing chamber for independently containing washing water when washing laundry.
The first inner drum 1701 of the drum washing machine of the embodiment can independently wash clothes as an independent washing drum, the second inner drum 1702 has an independent washing chamber which can be closed, and can also independently wash clothes as an independent washing drum, and the second inner drum 1702 has an independent washing chamber which can be closed, so that washing water is independently contained when washing clothes, and thus, when the first inner drum 1701 and the second inner drum 1702 wash simultaneously, water in the two drums cannot be mixed with each other, thereby realizing the simultaneous independent partition washing of the two drums.
Therefore, the drum washing machine can realize that one driving motor drives the inner cylinders with various specifications, one inner cylinder runs and washes or a plurality of inner cylinders wash simultaneously, the appearance of only one washing machine is realized, a plurality of independent washing subareas of one motor of one washing machine are really realized, the functions of washing subareas such as exclusive washing for babies, washing underwear, washing clothes for the old, washing socks and the like are easily realized, the washing effect is improved, and the user experience is improved.
In order to realize that the second inner drum has a sealable independent washing chamber, the second inner drum 1702 is a non-porous drum, an openable/closable second inner drum door 602 is mounted on the opening of the second inner drum 1702, and the second inner drum door 602 closes the sealable independent washing chamber formed with the non-porous drum.
Because the second inner cylinder 1702 adopts a non-porous cylinder structure, in order to realize the drainage of the second inner cylinder 1702, a second drainage port is formed in the side wall of the second inner cylinder 1702, a second centrifugal valve 33 for keeping the drainage port normally closed is arranged on the second drainage port, and the second centrifugal valve 33 opens the second drainage port for drainage when the rotating speed of the second inner cylinder 1702 exceeds a set value. By adopting the structure design of the centrifugal valve for drainage, in the washing process of the second inner barrel 1702, because the rotating speed cannot reach the opening rotating speed of the centrifugal valve, the clothes in the second inner barrel 1702 are independently washed, and when drainage or dehydration is performed, the centrifugal valve is opened by controlling the rotating speed of the inner barrel 1702 to exceed a set value, so that drainage is realized.
Because the second inner barrel 1702 adopts the design of the non-porous barrel, the second inner barrel 1702 is a washing barrel and a water containing barrel, in order to realize the water inlet of the second inner barrel 1702, the drum washing machine of the embodiment comprises a water inlet system, and the first inner barrel and the second inner barrel are respectively communicated with the water inlet system.
Preferably, the washing machine includes an inner cylinder shaft 13 connected to the bottom of the first inner cylinder 1701, the inner cylinder shaft 13 is a hollow shaft, the water inlet system includes a water inlet pipeline, the water inlet pipeline is communicated with the hollow shaft, and the first inner cylinder 1701 and the second inner cylinder 1702 are both communicated with the hollow shaft.
Further, the second inner barrel 1702 of the present embodiment is detachably mounted inside the first inner barrel, and the second inner barrel has a communication port for communicating with the hollow shaft. In this way, the user can select whether to utilize the second inner barrel 1702 according to a specific washing condition, thereby improving the washing experience of the user.
Preferably, the bottom of the second inner barrel 1702 is clamped on the bottom of the first inner barrel 1701 through a clamping structure, and a communication port is formed in the center position of the bottom of the second inner barrel 1702.
In order to further improve the water saving and self-cleaning performance of the drum washing machine of this embodiment, the first inner drum 1701 is a non-porous drum, an openable/closable first inner drum door 601 is mounted on a drum opening of the first inner drum 1701, and the first inner drum door 601 closes a washing chamber which is independent from the non-porous drum and can be closed.
Meanwhile, in order to realize the drainage of the first inner cylinder, a first drainage port is opened in a side wall of the first inner cylinder 1701, a first centrifugal valve 32 for keeping the drainage port normally closed is provided in the first drainage port, and the first centrifugal valve 32 opens the first drainage port to drain water when the rotation speed of the first inner cylinder 1701 exceeds a set value.
In this embodiment, the axial height H1 of the first inner barrel 1701 is greater than the axial height H2 of the second inner barrel 1702, so that the washing machine of the present application has two inner barrels with different volumes, and a user can select a corresponding inner barrel to implement independent partition washing according to actual conditions.
In the control method of the drum washing machine of the embodiment, the washing machine controls the first inner drum and/or the second inner drum to operate, and the clothes in the first inner drum or the second inner drum are independently washed in a partition mode.
Further, when the washing machine executes a first inner cylinder washing program and controls the rotating speed of the first inner cylinder to exceed a first set value N1, the first centrifugal valve opens the first water outlet for water drainage;
when the washing machine executes a second inner cylinder washing program and controls the rotating speed of the second inner cylinder to exceed a first set value N2, the second centrifugal valve opens the second water outlet for draining water;
the second set value N2 is less than or equal to the first set value N1.
EXAMPLE six
The present embodiment provides a control method for a drum washing machine as described in the fifth embodiment, where the drum washing machine includes a first inner drum and a second inner drum disposed inside the first inner drum, the second inner drum has an independent washing chamber that can be closed, and independently holds washing water when washing laundry, and the washing machine controls the first inner drum and/or the second inner drum to operate, so as to separately wash laundry in the first inner drum or the second inner drum in a partitioned manner.
The control method of the drum washing machine in the embodiment realizes working conditions of water inlet, washing, dehydration, drainage and the like when the first inner cylinder works independently and the second inner cylinder works independently or the first inner cylinder and the second inner cylinder work together by controlling the first inner cylinder and/or the second inner cylinder to operate, so as to achieve the purpose of performing partition independent washing on clothes in the first inner cylinder or the second inner cylinder.
Furthermore, the second inner cylinder is a non-porous cylinder, an openable/closable second inner cylinder door is installed on a cylinder opening of the second inner cylinder, the second inner cylinder door and the non-porous cylinder form a closable independent washing chamber, and the drum washing machine further comprises a water inlet system communicated with the interior of the second inner cylinder.
The second inner cylinder of the drum washing machine of the embodiment adopts a design of a non-porous cylinder, and can realize independent washing of clothes, the control method comprises an independent working mode of the second inner cylinder, the second inner cylinder is controlled to keep static in the water inlet process, and water in the water inlet system only enters the second inner cylinder.
Furthermore, a second water outlet is formed in the side wall of the second inner cylinder, and a second centrifugal valve used for keeping the water outlet normally closed is arranged on the second water outlet.
The control method comprises the following steps: the washing machine controls the rotating speed of the second inner barrel to exceed a second set value N2, the second centrifugal valve opens the second water outlet, and water in the second inner barrel is discharged into the first inner barrel.
The control method of the embodiment also comprises a common working mode of the first inner cylinder and the second inner cylinder, wherein in the water inlet process, the rotating speed of the second inner cylinder is controlled to exceed a second set value N2, the second centrifugal valve opens the second water outlet, and water entering the second inner cylinder from the water inlet system is discharged into the first inner cylinder;
when the water level in the first inner cylinder reaches a set value, the rotating speed of the second inner cylinder is controlled to be lower than a second set value N2 or kept static until the water level in the second inner cylinder reaches the set value, and the water inlet system stops water inlet.
Further, in the drainage process or the dehydration process, the rotating speed of the second inner cylinder is controlled to exceed a second set value N2, the second centrifugal valve opens the second water outlet, and water in the second inner cylinder is drained into the first inner cylinder and is drained through the first inner cylinder.
As an implementation manner of this embodiment, the first inner cylinder is a non-porous cylinder, an openable/closable first inner cylinder door is installed on a cylinder opening of the first inner cylinder, the first inner cylinder door closes a washing chamber which is independent from the non-porous cylinder and can be closed, a first drain port is opened on a side wall of the first inner cylinder, and a first centrifugal valve for keeping the drain port normally closed is disposed on the first drain port.
The control method described in this embodiment includes: in the water inlet process, the rotating speed of the second inner cylinder is controlled to be larger than or equal to a second set value N2 and smaller than a first set value N1, the second centrifugal valve opens the second water outlet, the first centrifugal valve keeps the first water outlet closed, and water entering the second inner cylinder from the water inlet system is discharged into the first inner cylinder, wherein the second set value N2 is smaller than the first set value N1.
Further, in the drainage process or the dehydration process, the first inner cylinder and the second inner cylinder are controlled to synchronously rotate at a rotating speed which is greater than a first set value N1, the second centrifugal valve opens the second water outlet, the first centrifugal valve opens the first water outlet, and water in the second inner cylinder is discharged into the first inner cylinder through the second water outlet and is discharged through the first water outlet of the first inner cylinder.
Further, in the washing or rinsing process, the first inner cylinder and the second inner cylinder are controlled to synchronously rotate at a rotating speed less than a second set value N2, the first centrifugal valve keeps the first water outlet closed, and the second centrifugal valve keeps the second water outlet closed.
The control method of the embodiment realizes working conditions of water inlet, washing, water drainage, dehydration and the like when the first inner cylinder and the second inner cylinder work simultaneously by limiting the rotating speed of the first inner cylinder and the second inner cylinder, thereby realizing the simultaneous and independent washing of the two inner cylinders.
When the first inner cylinder and the second inner cylinder both adopt a non-porous cylinder structure, the control method comprises a second inner cylinder independent working mode, the washing machine controls the second inner cylinder and the first inner cylinder to rotate together at a rotating speed less than a second set value N2 to execute a washing working condition, and controls the second inner cylinder and the first inner cylinder to rotate together at a rotating speed greater than a first set value N1 to execute a drainage or dehydration working condition.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A control method of a roller washing machine comprises a first inner cylinder and a second inner cylinder arranged in the first inner cylinder, wherein the second inner cylinder is provided with a closable independent washing chamber and independently holds washing water when washing clothes.
2. The control method according to claim 1, wherein the second inner cylinder is a non-porous cylinder, an opening of the second inner cylinder is provided with a second inner cylinder door which can be opened/closed, the second inner cylinder door closes a separate washing chamber which can be closed with the non-porous cylinder, and the drum washing machine further comprises a water inlet system communicated with the inside of the second inner cylinder;
the control method comprises an independent working mode of the second inner cylinder, wherein in the water inlet process, the second inner cylinder is controlled to keep static, and water in the water inlet system only enters the second inner cylinder.
3. The control method according to claim 2, wherein a second water outlet is formed in the side wall of the second inner cylinder, and a second centrifugal valve for keeping the water outlet normally closed is arranged on the second water outlet;
the control method comprises the following steps: the washing machine controls the rotating speed of the second inner barrel to exceed a second set value N2, the second centrifugal valve opens the second water outlet, and water in the second inner barrel is discharged into the first inner barrel.
4. The control method according to claim 3, comprising a common working mode of the first inner cylinder and the second inner cylinder, wherein in the water inlet process, the rotating speed of the second inner cylinder is controlled to exceed a second set value N2, the second centrifugal valve opens the second water outlet, and water entering the second inner cylinder from the water inlet system is discharged into the first inner cylinder;
when the water level in the first inner cylinder reaches a set value, the rotating speed of the second inner cylinder is controlled to be lower than a second set value N2 or kept static until the water level in the second inner cylinder reaches the set value, and the water inlet system stops water inlet.
5. The control method according to claim 4, wherein the rotation speed of the second inner cylinder is controlled to exceed a second set value N2 during the draining process or the dewatering process, the second centrifugal valve opens the second water outlet, and the water in the second inner cylinder is drained into the first inner cylinder and drained through the first inner cylinder.
6. The control method according to claim 4 or 5, wherein the first inner cylinder is a non-porous cylinder, a first inner cylinder door capable of opening/closing is installed on a cylinder opening of the first inner cylinder, the first inner cylinder door closes a washing chamber which is independent from the non-porous cylinder and can be closed, a first water discharge opening is formed in a side wall of the first inner cylinder, and a first centrifugal valve used for keeping the water discharge opening normally closed is arranged on the first water discharge opening;
the control method comprises the following steps: in the water inlet process, the rotating speed of the second inner cylinder is controlled to be larger than or equal to a second set value N2 and smaller than a first set value N1, the second centrifugal valve opens the second water outlet, the first centrifugal valve keeps the first water outlet closed, and water entering the second inner cylinder from the water inlet system is discharged into the first inner cylinder, wherein the second set value N2 is smaller than the first set value N1.
7. The control method according to claim 6, wherein the first inner cylinder and the second inner cylinder are controlled to synchronously rotate at a rotation speed greater than the first set value N1 during the draining process or the dewatering process, the second centrifugal valve opens the second water outlet, the first centrifugal valve opens the first water outlet, and water in the second inner cylinder is drained into the first inner cylinder through the second water outlet and is drained through the first water outlet of the first inner cylinder.
8. The control method according to claim 6, wherein the first and second inner cylinders are controlled to rotate synchronously at a rotation speed less than the second set value N2 during the washing or rinsing process, the first centrifugal valve keeps the first drain port closed, and the second centrifugal valve keeps the second drain port closed.
9. The control method as claimed in claim 6, wherein the control method includes a second drum independent operation mode in which the washing machine controls the second drum and the first inner drum to rotate together at a rotation speed less than a second set value N2 to perform a washing operation, and controls the second drum and the first inner drum to rotate together at a rotation speed greater than a first set value N1 to perform a draining or dehydrating operation.
10. A drum washing machine using the control method according to any one of claims 1 to 9.
CN201910311729.3A 2019-04-18 2019-04-18 Control method of drum washing machine and drum washing machine Active CN111826881B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101935938A (en) * 2010-09-09 2011-01-05 南京乐金熊猫电器有限公司 Washing machine inner cylinder and washing machine using same
KR20120089821A (en) * 2010-12-21 2012-08-14 김태인 Dual drum washing machine
CN104040065A (en) * 2011-10-24 2014-09-10 Lg电子株式会社 Washing machine
CN105755741A (en) * 2014-12-20 2016-07-13 天津东风汽车华北销售服务有限公司 Double-drum washing machine
WO2018141914A1 (en) * 2017-02-03 2018-08-09 Arcelik Anonim Sirketi A washer-dryer utilizing the volume inside the door
EP3401432A1 (en) * 2017-05-08 2018-11-14 Vestel Elektronik Sanayi ve Ticaret A.S. A technique for balancing during drum rotation in a washing machine
CN108866922A (en) * 2017-05-09 2018-11-23 青岛海尔滚筒洗衣机有限公司 A kind of roller washing machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101935938A (en) * 2010-09-09 2011-01-05 南京乐金熊猫电器有限公司 Washing machine inner cylinder and washing machine using same
KR20120089821A (en) * 2010-12-21 2012-08-14 김태인 Dual drum washing machine
CN104040065A (en) * 2011-10-24 2014-09-10 Lg电子株式会社 Washing machine
CN105755741A (en) * 2014-12-20 2016-07-13 天津东风汽车华北销售服务有限公司 Double-drum washing machine
WO2018141914A1 (en) * 2017-02-03 2018-08-09 Arcelik Anonim Sirketi A washer-dryer utilizing the volume inside the door
EP3401432A1 (en) * 2017-05-08 2018-11-14 Vestel Elektronik Sanayi ve Ticaret A.S. A technique for balancing during drum rotation in a washing machine
CN108866922A (en) * 2017-05-09 2018-11-23 青岛海尔滚筒洗衣机有限公司 A kind of roller washing machine

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