CN111850926B - Drum washing machine and control method thereof - Google Patents

Drum washing machine and control method thereof Download PDF

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Publication number
CN111850926B
CN111850926B CN201910311730.6A CN201910311730A CN111850926B CN 111850926 B CN111850926 B CN 111850926B CN 201910311730 A CN201910311730 A CN 201910311730A CN 111850926 B CN111850926 B CN 111850926B
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China
Prior art keywords
drum
inner cylinder
water
washing machine
basin
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CN201910311730.6A
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CN111850926A (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 Washing Electric Appliance Co Ltd
Haier Smart Home Co Ltd
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Priority to CN201910311730.6A priority Critical patent/CN111850926B/en
Publication of CN111850926A publication Critical patent/CN111850926A/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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements
    • 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)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

The invention provides a drum washing machine and a control method thereof, wherein the drum washing machine comprises: a drive device; the inner cylinder mounting rack is used for detachably mounting inner cylinders with washing chambers with different volumes; the output end of the driving device is connected with the inner cylinder mounting rack to drive the inner cylinder mounting rack to rotate, and the inner cylinder mounting rack drives the inner cylinder to synchronously rotate to wash clothes. The drum washing machine is provided with the inner drum mounting frame, and the inner drum is detachably mounted on the inner drum mounting frame, so that the inner drum with the corresponding volume can be detached and replaced according to the actual washing condition, the energy consumption is better saved, meanwhile, the corresponding inner drum can be replaced according to the types of clothes, the classified washing is realized, and the washing experience is improved.

Description

Drum washing machine and control method thereof
Technical Field
The invention relates to the technical field of laundry equipment, in particular to a drum washing machine and a control method thereof.
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 problem of partitioned independent washing, the prior application number is 201410806293.2, which is named as: 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 drum washing machine, and specifically, the following technical solution is adopted:
a drum washing machine comprising:
a drive device;
the inner cylinder mounting rack is used for detachably mounting inner cylinders with washing chambers with different volumes;
the output end of the driving device is connected with the inner cylinder mounting rack to drive the inner cylinder mounting rack to rotate, and the inner cylinder mounting rack drives the inner cylinder to synchronously rotate to wash clothes.
Furthermore, the driving device comprises a driving motor and an inner cylinder shaft connected with the driving motor, the inner cylinder mounting frame is fixedly connected with the inner cylinder shaft, and the inner cylinder mounting frame is provided with a mounting part for mounting the inner cylinder;
preferably, the inner cylinder mounting frame is provided with a mounting part for mounting inner cylinders with the same diameter specification;
or, the inner cylinder mounting frame is provided with a plurality of mounting parts, and inner cylinders with different diameters are correspondingly mounted.
Further, the installation department for setting up the buckle structure on the inner tube mounting bracket, the inner tube pass through buckle structure joint on the inner tube mounting bracket.
Further, the inner tube mounting bracket be the basin shape structure, the pelvic floor and the inner tube axle fixed connection of basin shape structure, the bobbin base of inner tube stretches into the inside cavity of basin shape structure by the basin mouth of basin shape structure to fixed mounting is on the pelvic floor of basin shape structure.
Furthermore, the inner cylinder is a non-porous cylinder, an openable/closable inner cylinder door is installed on the cylinder opening of the inner cylinder, and the inner cylinder door and the non-porous cylinder form a closable and independent washing chamber.
Furthermore, a water outlet is formed in the side wall of the inner cylinder, a centrifugal valve used for keeping the water outlet normally closed is arranged on the water outlet, and the centrifugal valve opens the water outlet to discharge water when the rotating speed of the inner cylinder exceeds a set value.
The water inlet system comprises a water inlet pipeline, wherein the water inlet pipeline is communicated with the hollow shaft; the inner cylinder is provided with a communication port, and the communication port is in sealing connection with the hollow shaft when the inner cylinder is installed on the inner cylinder installation frame.
The water inlet system comprises a water inlet pipeline, the water inlet pipeline is communicated with the hollow shaft, and an internal cavity of the basin-shaped structure is communicated with the hollow shaft; the inner cylinder is circumferentially sealed with the annular peripheral wall of the basin-shaped structure, a closed chamber is formed between the basin bottom of the basin-shaped structure and the basin bottom of the basin-shaped structure, and the inner cylinder is provided with a communication port communicated with the closed chamber.
Further, the inner cylinder comprises a first inner cylinder and a second inner cylinder, the first inner cylinder and the second inner cylinder can be respectively detachably mounted on the inner cylinder mounting frame, the first inner cylinder and the second inner cylinder have the same diameter, and the axial height H1 of the first inner cylinder is larger than the axial height H2 of the second inner cylinder.
The second purpose 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 the drum washing machine, comprising: the washing machine is controlled to feed water according to the volume of the washing chamber of the inner barrel arranged on the inner barrel mounting frame and the water inlet level corresponding to the volume of the washing chamber of the inner barrel, so that clothes are washed.
The drum washing machine is provided with the inner drum mounting frame, and the inner drum is detachably mounted on the inner drum mounting frame, so that the inner drum with the corresponding volume can be detached and replaced according to the actual washing condition, the energy consumption is better saved, meanwhile, the corresponding inner drum can be replaced according to the types of clothes, the classified washing is realized, and the washing experience is improved.
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.
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 partial 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 first embodiment of a five drum washing machine according to the present invention;
fig. 14 is a schematic diagram of a fifth 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 14, 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 barrel 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 to be 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 the side wall of the inner cylinder 17 is provided with an inner cylinder drainage hole, a normally closed one-way valve plug 11 is arranged on the inner cylinder drainage hole, and a mandril mechanism 10 for jacking the one-way valve plug 11 to drain water is arranged 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 which can be selected by a user, and the washing machine carries out water inlet according to the water inlet flow values selected by the user.
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; 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 to 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 holds washing water when washing laundry, and further includes an air pressure balancing mechanism for communicating the inner drum 17 with an external environment to balance an 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 at a position on the inner barrel 17 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 the present 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 after the inner cylinder is locked by the locking mechanism, the push rod mechanism pushes the one-way valve plug open for drainage.
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 pressurization mechanism described in this embodiment includes a pressurization pore passage 28 and a negative pressure safety valve 29, the negative pressure safety valve 29 is disposed on the pressurization pore passage 28, and is used for conducting the pressurization pore passage 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 pressurization pore passage 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 communicated with the inside of the outer drum 18.
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 orifices 28, 30 are both disposed on the inner barrel shaft 13 and open to atmosphere 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 to 14, a drum washing machine of the present embodiment includes:
a drive device;
an inner drum mounting bracket 32 for detachably mounting the inner drum 17 having washing chambers of different volumes;
the output end of the driving device is connected with the inner cylinder mounting rack 32 to drive the inner cylinder mounting rack 32 to rotate, and the inner cylinder mounting rack 32 drives the inner cylinder 17 to synchronously rotate for washing clothes.
The drum type washing machine of this embodiment has inner tube mounting bracket 32, and inner tube 17 detachable installs on the inner tube mounting bracket, like this, can dismantle the replacement according to the washing condition of reality and correspond volumetric inner tube to better practice thrift the energy consumption, also can replace the inner tube that corresponds according to the kind of clothing simultaneously, realized categorised washing, promote the washing and experience.
Further, the driving device comprises a driving motor 16 and an inner cylinder shaft 13 connected with the driving motor 16, the inner cylinder mounting frame 32 is fixedly connected with the inner cylinder shaft 13, and the inner cylinder mounting frame 32 is provided with a mounting part for mounting an inner cylinder.
Preferably, the inner cylinder mounting bracket 32 is provided with a mounting part for mounting inner cylinders with the same diameter specification;
alternatively, the inner cylinder mounting frame 32 has a plurality of mounting portions for correspondingly mounting inner cylinders with different diameters.
As an implementation manner of this embodiment, the installation part is a buckle structure arranged on the inner cylinder installation frame 32, and the inner cylinder 17 is connected to the inner cylinder installation frame through the buckle structure. Through the demountable installation of the realization inner tube 17 of buckle structure, the user of being convenient for changes the operation of inner tube, promotes the user and uses experience.
Specifically, inner tube mounting bracket 32 be the basin shape structure, the pelvic floor and the inner tube axle fixed connection of basin shape structure, the bobbin base of inner tube stretches into the inside cavity of basin shape structure by the basin mouth of basin shape structure to fixed mounting is on the pelvic floor of basin shape structure.
In one embodiment of this embodiment, the inner drum 17 is a non-porous drum, an openable/closable inner drum door 6 is installed on the opening of the inner drum 17, and the inner drum door 6 closes and forms a closable independent washing chamber with the non-porous drum. The embodiment 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 the inner barrel and the 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.
In order to realize the drainage of the imperforate inner cylinder, a drainage port is arranged on the side wall of the inner cylinder 17, a centrifugal valve 33 for keeping the drainage port normally closed is arranged on the drainage port, and the centrifugal valve 33 opens the drainage port to drain water when the rotating speed of the inner cylinder 17 exceeds a set value.
The centrifugal valve drainage structural design is adopted, so that clothes in the inner barrel 17 can be independently washed because the rotating speed of the inner barrel 17 cannot reach the opening rotating speed of the centrifugal valve in the washing process, and the centrifugal valve is opened by controlling the rotating speed of the inner barrel 17 to exceed a set value to realize drainage during drainage or dehydration.
Because the inner cylinder 17 adopts a design of a non-porous cylinder, the inner cylinder 17 is both a washing cylinder and a water containing cylinder, in order to realize the water inlet of the inner cylinder 17, the drum washing machine of the embodiment comprises a water inlet system, the inner cylinder shaft 13 is a hollow shaft, the water inlet system comprises a water inlet pipeline, and the water inlet pipeline is communicated with the hollow shaft; the inner cylinder is provided with a communication port, and the communication port is hermetically connected with the hollow shaft when the inner cylinder is arranged on the inner cylinder mounting frame.
In order to realize water inlet of the imperforate inner cylinder, as another implementation manner of the embodiment, the drum washing machine of the embodiment comprises a water inlet system, the inner cylinder shaft 13 is a hollow shaft, the water inlet system comprises a water inlet pipeline, the water inlet pipeline is communicated with the hollow shaft, and an internal cavity of the basin-shaped structure is communicated with the hollow shaft; the inner cylinder is circumferentially sealed with the annular peripheral wall of the basin-shaped structure, a closed chamber is formed between the basin bottom of the basin-shaped structure and the basin bottom of the basin-shaped structure, and the inner cylinder is provided with a communication port communicated with the closed chamber.
As shown in fig. 13 and 14, the inner cylinder of the present embodiment includes a first inner cylinder and a second inner cylinder, the first inner cylinder and the second inner cylinder can be detachably mounted on the inner cylinder mounting rack, the first inner cylinder and the second inner cylinder have the same diameter, and an axial height H1 of the first inner cylinder is greater than an axial height H2 of the second inner cylinder.
Of course, the number of the inner cylinders in the embodiment is not limited to two, and a plurality of inner cylinders having different axial heights may be selected according to specific situations.
The embodiment also provides a control method of the drum washing machine, which comprises the following steps: the washing machine is controlled to feed water according to the volume of the washing chamber of the inner barrel arranged on the inner barrel mounting frame and the water inlet level corresponding to the volume of the washing chamber of the inner barrel, so as to wash clothes.
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 (7)

1. A drum washing machine characterized by comprising:
a drive device;
the inner cylinder mounting rack is used for detachably mounting inner cylinders with washing chambers with different volumes;
the output end of the driving device is connected with the inner cylinder mounting rack to drive the inner cylinder mounting rack to rotate, and the inner cylinder mounting rack drives the inner cylinder to synchronously rotate for washing;
the inner cylinder is a non-porous cylinder, an inner cylinder door capable of being opened or closed is installed on the cylinder opening of the inner cylinder, and the inner cylinder door and the non-porous cylinder form a washing chamber capable of being closed and independent;
a water outlet is formed in the side wall of the inner cylinder, a centrifugal valve used for keeping the water outlet normally closed is arranged on the water outlet, and the centrifugal valve opens the water outlet to drain water when the rotating speed of the inner cylinder exceeds a set value;
selecting a plurality of inner cylinders with different axial heights according to specific conditions;
the driving device comprises a driving motor and an inner cylinder shaft connected with the driving motor, the inner cylinder mounting frame is fixedly connected with the inner cylinder shaft, and the inner cylinder mounting frame is provided with a mounting part for mounting the inner cylinder;
the inner cylinder mounting rack is provided with a mounting part for mounting inner cylinders with the same diameter specification;
or, the inner cylinder mounting frame is provided with a plurality of mounting parts, and inner cylinders with different diameters are correspondingly mounted.
2. A drum washing machine according to claim 1, characterized in that the mounting part is a buckle structure arranged on the inner drum mounting frame, and the inner drum is clamped on the inner drum mounting frame through the buckle structure.
3. A drum washing machine according to claim 1, characterized in that the inner drum mounting rack is of a basin-shaped structure, the basin bottom of the basin-shaped structure is fixedly connected with the inner drum shaft, and the drum bottom of the inner drum extends into the inner cavity of the basin-shaped structure from the basin opening of the basin-shaped structure and is fixedly mounted on the basin bottom of the basin-shaped structure.
4. A drum washing machine according to claim 1, characterized by comprising a water inlet system, wherein the inner drum shaft is a hollow shaft, and the water inlet system comprises a water inlet pipeline which is communicated with the hollow shaft; the inner cylinder is provided with a communication port, and the communication port is hermetically connected with the hollow shaft when the inner cylinder is arranged on the inner cylinder mounting frame.
5. A drum washing machine according to claim 3, characterized by comprising a water inlet system, wherein the inner drum shaft is a hollow shaft, the water inlet system comprises a water inlet pipeline, the water inlet pipeline is communicated with the hollow shaft, and the inner chamber of the basin-shaped structure is communicated with the hollow shaft; the inner cylinder is circumferentially sealed with the annular peripheral wall of the basin-shaped structure, a closed chamber is formed between the basin bottom of the basin-shaped structure and the basin bottom of the basin-shaped structure, and the inner cylinder is provided with a communication port communicated with the closed chamber.
6. A drum washing machine according to claim 1, characterized in that the inner drum comprises a first inner drum and a second inner drum, the first inner drum and the second inner drum can be respectively and detachably mounted on the inner drum mounting rack, the first inner drum and the second inner drum have the same diameter, and the axial height H1 of the first inner drum is greater than the axial height H2 of the second inner drum.
7. A control method of a drum washing machine according to any one of claims 1-6, characterized by comprising: the washing machine is controlled to feed water according to the volume of the washing chamber of the inner barrel arranged on the inner barrel mounting frame and the water inlet level corresponding to the volume of the washing chamber of the inner barrel, so that clothes are washed.
CN201910311730.6A 2019-04-18 2019-04-18 Drum washing machine and control method thereof Active CN111850926B (en)

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Application Number Priority Date Filing Date Title
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1724742A (en) * 2004-07-20 2006-01-25 Lg电子株式会社 Drum type washing machine and bearing housing structure thereof
CN104727073A (en) * 2013-12-23 2015-06-24 东部大宇电子株式会社 Drum type 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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11274389B2 (en) * 2017-08-04 2022-03-15 Samsung Electronics Co., Ltd. Washing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1724742A (en) * 2004-07-20 2006-01-25 Lg电子株式会社 Drum type washing machine and bearing housing structure thereof
CN1932126A (en) * 2004-07-20 2007-03-21 Lg电子株式会社 Drum type washing machine and bearing housing structure thereof
CN104727073A (en) * 2013-12-23 2015-06-24 东部大宇电子株式会社 Drum type 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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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao

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