WO2020083077A1 - Machine à laver à tambour - Google Patents

Machine à laver à tambour Download PDF

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Publication number
WO2020083077A1
WO2020083077A1 PCT/CN2019/111395 CN2019111395W WO2020083077A1 WO 2020083077 A1 WO2020083077 A1 WO 2020083077A1 CN 2019111395 W CN2019111395 W CN 2019111395W WO 2020083077 A1 WO2020083077 A1 WO 2020083077A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner cylinder
drum
washing machine
channel
hole
Prior art date
Application number
PCT/CN2019/111395
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English (en)
Chinese (zh)
Inventor
许升
赵志强
吕佩师
Original Assignee
青岛海尔滚筒洗衣机有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201811237072.2A external-priority patent/CN111172715A/zh
Priority claimed from CN201811237073.7A external-priority patent/CN111088635A/zh
Application filed by 青岛海尔滚筒洗衣机有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Priority to JP2021521538A priority Critical patent/JP7266775B2/ja
Publication of WO2020083077A1 publication Critical patent/WO2020083077A1/fr

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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
    • 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 
    • 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

Definitions

  • the invention relates to the technical field of laundry equipment, in particular, to a drum washing machine.
  • washing machine as the most widely used household appliance in people's daily life, helps people get rid of the troubles of washing and brings great convenience to people.
  • washing machines also have certain shortcomings, such as long time consumption and large water consumption.
  • water resources have become more and more important as an important natural resource, and people ’s awareness of water saving has also increased.
  • the improvement, and how to realize the water-saving function of the washing machine is particularly important.
  • a drum washing machine including a cabinet, the cabinet is provided with The cylinder and the outer cylinder are provided with a door seal between the outer cylinder and the box body.
  • the inner cylinder is connected to the driving device.
  • the inner cylinder is a non-porous inner cylinder, and the inner cylinder is a small diameter at the bottom of the cylinder and a mouth A conical cylinder with a large diameter.
  • the mouth of the inner cylinder is curved inwards.
  • the door seal is provided with a water inlet pipe.
  • the inner cylinder of the invention is a non-porous inner cylinder.
  • the inner cylinder is provided with water through a water inlet pipe provided on the door seal, and the inner cylinder is shaped to realize drainage during the dehydration process, which can be avoided By storing water between the inner and outer cylinders, the amount of washing water is greatly saved.
  • the above invention provides a drum washing machine with a non-porous inner drum, but only the inner drum of the existing drum washing machine is designed to have a non-porous structure, which has little practical significance. Because laundry must be immersed in certain washing water, if you want to achieve the effect of soaking, a certain amount of water needs to be stored in the non-porous inner cylinder, which will increase the burden on the motor and problems such as power consumption. In addition, the water inlet method of the drum washing machine disclosed in this patent is through the door seal.
  • the water inlet duct provided on the door seal easily affects the sealing effect of the door seal, which is not easy It is realized, and this patent cannot realize the detection of the water level in the inner cylinder.
  • the present invention mainly solves the problem of how to ensure the air pressure imbalance in the sealed cabin of the non-porous inner drum washing machine, specifically, the sudden solenoid valve water cutout, especially the water supply of the water pipe network, forms a negative pressure, which will wash the water in the sealed cabin. Backwash to the pipe network; or if there is gas inside, it is difficult to enter the water.
  • the object of the invention is to provide a drum washing machine. Specifically, the following technical solutions are adopted:
  • a drum washing machine includes an inner cylinder.
  • the inner cylinder is a non-porous inner cylinder. It contains washing water when washing clothes. It also includes an air pressure balancing mechanism for connecting the inner cylinder with the external environment to balance the air pressure inside the inner cylinder.
  • the air pressure balance mechanism includes a pressure equalizing channel provided on the inner cylinder, and the end of the pressure equalizing channel communicating with the inner cylinder is provided on the inner cylinder near the rotation central axis and is always higher than the inner cylinder. The highest water level.
  • the driving motor drives the inner cylinder to rotate through the inner cylinder shaft and the inner cylinder transmission connection.
  • the pressure equalizing channel is opened on the inner cylinder shaft to connect the inner cylinder and the external environment. The highest water level in the inner cylinder is lower than the inner cylinder axis.
  • the drum washing machine includes an outer tub, the inner tub is disposed inside the outer tub, and water discharged from the inner tub is discharged through the outer tub, and the mouth of the inner tub is installed with an inner tub door that closes the inner tub,
  • the mouth of the outer cylinder is open, and one end of the pressure equalizing channel communicates with the inside of the inner cylinder, and the other end is disposed inside the outer cylinder to communicate with it.
  • an inner cylinder drainage hole is provided on the side wall of the inner cylinder, a normally closed one-way valve plug is installed on the inner cylinder drainage hole, and the outer cylinder is installed to open the one-way valve plug for drainage Jack mechanism
  • the outer cylinder is further provided with a locking mechanism for locking the rotation of the inner cylinder. After the locking mechanism locks the inner cylinder, the ejector mechanism pushes the one-way valve plug to drain.
  • the drum washing machine includes a water inlet line, the inner drum shaft has a hollow channel communicating with the inner drum, the water inlet pipe communicates with the hollow channel of the inner drum shaft; the pressure equalization The hole and the hollow channel communicate with the inside of the inner cylinder and are isolated from each other.
  • the hollow channel extends from one end to the other end in the direction of the central axis of the inner cylinder shaft
  • the pressure equalizing channel includes a first channel segment and a second channel segment, the first channel segment is disposed parallel to the hollow channel, One end communicates with the inside of the inner cylinder, one end of the second hole segment communicates with the first hole segment, and the other end extends to the outer peripheral wall of the inner cylinder shaft to communicate with the inside of the outer cylinder;
  • the second channel section is arranged perpendicular to the first channel section to form an L-shaped pressure equalizing channel.
  • the inner cylinder shaft is connected to a driving motor, and the driving motor includes a stator and a rotor, and the rotor is fixedly connected to the inner cylinder shaft; a through hole is provided at the center of the rotor, and the water inlet pipe passes through the through hole of the rotor Communicate with the hollow channel of the inner cylinder shaft.
  • a first dynamic sealing structure is provided between the water inlet pipeline and the through hole of the rotor, and a second dynamic sealing structure is provided between the through hole of the rotor and the hollow passage of the inner cylinder shaft.
  • a plurality of dehydration holes are opened on the side wall of the inner cylinder, and centrifugal valves are installed on the dehydration holes.
  • the centrifugal valves are opened under the action of dehydration centrifugal force for dehydration and drainage.
  • the invention provides a drum washing machine with a front opening structure of a non-porous inner drum, 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 drum and the outer drum.
  • the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided. It greatly improves user health and user experience, and greatly saves water resources.
  • the air pressure balance mechanism includes a pressurization mechanism and / or a pressure relief mechanism for communicating the inner cylinder with the external environment to balance the air pressure inside the inner cylinder.
  • the supercharging mechanism includes a supercharging hole and a negative pressure safety valve, and the negative pressure safety valve is arranged on the supercharging hole for unidirectionally guiding the supercharging hole when the internal pressure of the inner cylinder is less than the atmospheric pressure of the external environment
  • the external environment gas enters the inner cylinder through the pressurization hole to be pressurized until the internal air pressure of the inner cylinder is balanced with the external environment air pressure, and the negative pressure safety valve is closed.
  • the pressure relief mechanism includes a pressure relief channel and a positive pressure safety valve.
  • the pressure relief channel is provided on the inner cylinder near the rotation center axis and is always higher than the highest water level in the inner cylinder.
  • the positive pressure safety valve is installed on the pressure relief channel, and is used to relieve pressure when the internal pressure of the inner cylinder is greater than the atmospheric pressure of the external environment, until the internal pressure of the inner cylinder is balanced with the external environment pressure, and the positive pressure safety valve is closed.
  • the drum washing machine includes a driving motor and an inner drum shaft, and the driving motor drives the inner drum to rotate through a transmission connection between the inner drum shaft and the inner drum, and the pressurization holes and / or pressure relief holes are opened
  • the inner axis of the inner cylinder communicates with the outside environment, and the highest water level in the inner cylinder is lower than the inner cylinder axis.
  • the drum washing machine includes an outer tub, the inner tub is disposed inside the outer tub, and water discharged from the inner tub is discharged through the outer tub, and the mouth of the inner tub is installed with an inner tub door that closes the inner tub,
  • the mouth of the outer cylinder is open, and one end of the pressurization hole and / or pressure relief hole communicates with the inside of the inner cylinder, and the other end is provided inside the outer cylinder to communicate with it.
  • the drum washing machine includes a water inlet line, the inner drum shaft has a hollow passage communicating with the inner drum, the water inlet pipe communicates with the hollow passage of the inner drum shaft; the pressure relief The hole and the hollow channel communicate with the inside of the inner cylinder and are isolated from each other.
  • the hollow channel extends from one end to the other end along the central axis of the inner cylinder axis
  • the pressure relief channel includes a first channel segment and a second channel segment, the first channel segment is disposed parallel to the hollow channel, One end communicates with the inside of the inner cylinder, one end of the second hole segment communicates with the first hole segment, and the other end extends to the outer peripheral wall of the inner cylinder shaft to communicate with the inside of the outer cylinder;
  • the second channel section is arranged perpendicular to the first channel section to form an L-shaped pressure relief channel.
  • the drum washing machine includes a water inlet line, the inner drum shaft has a hollow channel communicating with the inner drum, the water inlet pipe communicates with the hollow channel of the inner drum shaft; The hole is connected with the hollow channel.
  • the hollow channel extends from one end to the other end in the direction of the central axis of the inner cylinder shaft, one end of the pressurization hole communicates with the hollow channel, and the other end extends to the outer peripheral wall of the inner cylinder shaft and the outer cylinder Internal communication;
  • the pressurizing hole and the hollow channel are perpendicular to each other.
  • the inner cylinder shaft is connected to a driving motor, and the driving motor includes a stator and a rotor, and the rotor is fixedly connected to the inner cylinder shaft; a through hole is provided at the center of the rotor, and the water inlet pipe passes through the through hole of the rotor Communicate with the hollow channel of the inner cylinder shaft;
  • a first dynamic sealing structure is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage of the inner cylinder shaft.
  • the invention provides a drum washing machine with a front opening structure of a non-porous inner drum, 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 drum and the outer drum.
  • the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided. It greatly improves user health and user experience, and greatly saves water resources.
  • the gas in the sealed compartment of the inner cylinder can be overflowed through the equalizing mechanism to ensure the balance of air pressure.
  • the external atmosphere can quickly enter the sealed compartment of the inner cylinder and destroy the reverse suction to ensure the balance of air pressure and prevent the wash water from being sucked into the tap water pipe network.
  • the air pressure balance mechanism can also ensure the air pressure balance of the inner cylinder.
  • the gas in the sealed compartment of the inner cylinder is pressurized.
  • the positive pressure safety valve is opened and can overflow through the pressure relief hole to ensure air pressure balance.
  • the external atmosphere can quickly enter the sealed compartment and destroy the reverse suction to ensure the air pressure balance and prevent the wash water from being drawn into the tap water pipe. network.
  • the air pressure balance mechanism can also ensure the air pressure balance of the inner cylinder.
  • FIG. 1 is a schematic diagram of the principle of a drum washing machine according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the principle of the second embodiment of the present invention, a drum washing machine (embodiment 1);
  • FIG. 3 is a schematic diagram of the principle of the second drum washing machine in the second embodiment of the present invention (embodiment 2);
  • FIG. 4 is a schematic diagram of the principle of the second drum washing machine in the second embodiment of the present invention (embodiment 3);
  • FIG. 5 is a schematic diagram of the principle of a three-drum washing machine according to an embodiment of the present invention.
  • FIG. 6 is a partially enlarged view of FIG. 5 (pressure relief state) of a three-drum washing machine according to an embodiment of the present invention
  • FIG. 7 is a partial enlarged view of FIG. 5 (pressurized state) of a three-drum washing machine according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of the principle of a four-drum washing machine according to an embodiment of the present invention.
  • FIG. 9 is a partially enlarged view of FIG. 8 of the four-drum washing machine in Example 4 of the present invention (pressure relief state in Embodiment 1);
  • FIG. 10 is a partially enlarged view of FIG. 8 of the four-drum washing machine of the embodiment of the present invention (the pressurized state of the first embodiment);
  • FIG. 11 is a partially enlarged view of FIG. 8 of a four-drum washing machine according to an example of the present invention (pressure relief state in Embodiment 2);
  • FIG. 12 is a partially enlarged view of FIG. 8 of the four-drum washing machine in Example 4 of the present invention (the pressurized state of Embodiment 2);
  • FIG. 13 is a schematic diagram of the principle of a five-drum washing machine according to an embodiment of the present invention.
  • FIG. 14 is a bottom view of a five-drum washing machine according to an embodiment of the present invention.
  • 15 is a schematic diagram of a three-dimensional structure of a five-drum washing machine according to an embodiment of the present invention.
  • FIG. 16 is a partially enlarged view of FIG. 15 of a five-drum washing machine according to an embodiment of the present invention.
  • FIG. 17 is a schematic diagram of the principle of a six-drum washing machine according to an embodiment of the present invention (embodiment 1);
  • FIG. 18 is a schematic diagram of the principle of a six-drum washing machine according to an embodiment of the present invention (embodiment 2);
  • 19 is a flowchart of an implementation manner of a control method of a seven-drum washing machine according to an embodiment of the present invention.
  • this embodiment provides a drum washing machine with a front opening structure without a hole in the inner drum, which has a simple structure and can be greatly reduced without filling washing / rinsing water between the inner drum and the outer drum The washing water consumption of the washing machine.
  • the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided. It greatly improves user health and user experience, and greatly saves water resources.
  • the drum washing machine of this embodiment has a housing 19, which includes: a top panel 2, a front panel, a back panel, and a bottom panel.
  • a foot 9 is installed and fixed on the bottom plate to support the entire washing machine.
  • the outer casing 19 has an outer cylinder 18 inside, and the inner cylinder 17 is coaxially arranged inside the outer cylinder 18.
  • the main purpose of the outer cylinder 18 is to collect the drainage of the inner cylinder 17 and the drainage of the high-speed centrifugal dehydration of the inner cylinder 17.
  • the inner cylinder 17 rotates, and it is preferable to provide a lifting rib 43 to continuously lift and drop the laundry to wash the laundry.
  • the inner cylinder 17 has a non-porous structure.
  • the outer cylinder 18 has a central mounting hole, and the bearing 12 is mounted and fixed.
  • the inner cylinder shaft 13 tightly connected to the inner cylinder 17 passes through the bearing 12 shown and is connected to the drive motor 16.
  • An inner cylinder door 6 that can be opened / closed is installed on the front mouth of the inner cylinder 17 to further realize that the inner cylinder 17 has a sealed cabin structure.
  • a door 5 that can be opened / closed is mounted on the casing 19 of this embodiment.
  • This embodiment mainly solves the problem of how to accurately determine the water intake of the non-porous inner drum washing machine.
  • the specific scheme is as follows:
  • a drum washing machine includes an inner drum 17 and a water inlet pipe communicating with the inner drum 17.
  • the inner drum 17 is a non-porous inner drum, which contains washing water when washing clothes.
  • the water inlet pipe is provided for Flow sensor 1 to detect the flow of incoming water.
  • a flow sensor 1 is provided on the water inlet pipeline to monitor the flow rate during water inlet.
  • the water inlet valve 20 is closed to complete the water inlet.
  • the flow sensor is used to solve the problem of water inflow according to the set water level of the non-porous inner drum washing machine, to ensure the washing effect, the structure is simple, and the operation is convenient.
  • the drum washing machine of this 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 passes through the first water inlet pipe.
  • the detergent box 3 is connected to the outlet end of the detergent box 3 through the second water inlet pipe to the inner cylinder 17, and the flow sensor 1 is provided on the first water inlet pipe or the second water inlet pipe.
  • the flow sensor 1 is provided 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 this embodiment includes a main controller 4, and the flow sensor 1 and the main controller 4 are electrically connected by a line.
  • the main controller 4 can collect the water inlet volume of the inner cylinder 17 in real time, reach the set water inlet volume, and close the water inlet valve 20.
  • 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.
  • the flow sensor 1 can be provided at any position on the water inlet pipeline in this embodiment, preferably at the rear of the water inlet valve 20 to accurately measure the water flow into the sealed inner cylinder 17, the flow sensor 1 is connected to the main controller 4
  • the main controller 4 can collect the water intake of the inner cylinder 17 in real time, reach the set water intake, and close the water intake valve 20.
  • the drum washing machine of this embodiment includes a driving motor 16 and an inner drum shaft 13.
  • the driving motor 16 is connected to the inner drum 17 through the inner drum shaft 13 to drive and drive the inner drum.
  • the cylinder 17 rotates, and the inner cylinder shaft 13 has a hollow channel 14 communicating with the inner cylinder 17.
  • the water inlet pipe communicates with the hollow channel of the inner cylinder shaft 13.
  • the inner cylinder shaft 13 is connected to the driving motor 16, and the driving motor 16 includes a stator and a rotor.
  • the rotor is fixedly connected to the inner cylinder shaft 13; a through hole is provided at the center of the rotor, and the water inlet line passes through The through hole of the rotor communicates with the hollow passage 14 of the inner cylinder shaft 13.
  • first dynamic sealing structure 15 is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage 14 of the inner cylinder shaft 13.
  • the drum washing machine of this embodiment includes an outer drum 18, and an inner drum drainage hole is opened on the side wall of the inner drum 17, and a normally closed check valve plug 11 is installed on the inner drum drainage hole.
  • the outer cylinder 18 is provided with a jack mechanism 10 for pushing the one-way valve plug 11 to drain.
  • the outer cylinder 18 is further provided with a locking mechanism for locking the rotation of the inner cylinder 17. After the inner cylinder is locked, the ejector mechanism 10 pushes the check valve plug 11 to drain.
  • a plurality of dehydration holes are opened on the side wall of the inner cylinder 17 in this embodiment, and centrifugal valves are installed on the dehydration holes.
  • the centrifugal valves are opened for dehydration under the action of dehydration centrifugal force drain.
  • This embodiment also provides a control method of the drum washing machine.
  • the washing machine performs a washing / rinsing procedure.
  • the flow sensor detects the water intake flow value in real time.
  • the washing machine calculates the water intake amount according to the water intake flow value and the water intake time When the water intake reaches the set water intake of the washing machine, stop the water intake.
  • the drum washing machine is provided with a plurality of inlet water flow values that can be selected by the user, and the washing machine performs water inlet according to the inlet water flow value selected by the user.
  • the drum washing machine has a laundry weighing function, which can determine the flow rate of the incoming water according to the weight of the laundry.
  • a drum washing machine in this embodiment includes an inner tub 17 and a water inlet line.
  • the inner tub is a non-porous inner tub.
  • a water measuring device for measuring the water intake, the water inlet pipeline is connected to the water measuring device, and the water measuring device communicates with the inner cylinder.
  • the drum washing machine of this embodiment is provided with a water measuring device, and before entering the water in the inner tub 1, it enters the water measuring device for quantitative measurement, and determines the number of times the water measuring device measures the water according to the set water level, thereby solving the problem According to the water inlet problem of the set water level, the non-porous inner drum drum washing machine ensures the washing effect, the structure is simple, and the operation is convenient.
  • the water measuring device in this embodiment includes a water measuring water tank 21, and the water measuring water tank 21 has a water inlet and a water outlet, the water inlet is connected to the water inlet pipe, and the water outlet is connected to the inner cylinder 17; the water outlet is provided with A water outlet control device that controls the opening of the water outlet when the amount of water in the water equivalent tank 21 reaches a set value.
  • the water measuring water tank 21 is provided at the bottom of the inner cylinder 17.
  • the water measuring device includes a water level detecting device 22 for detecting the water measuring water tank 21.
  • the water outlet control device is a water tank drain pump 23, and the water tank drain pump 23 activates the water tank drain pump 23 when the water level detection device 22 detects that the water level in the water metering water tank 21 reaches a set value. Water pump into the inner cylinder 17.
  • the water measuring water tank 21 is provided at the upper portion of the inner cylinder 17, and the water measuring device includes a water level detecting device 22 for detecting the water measuring water tank.
  • the water outlet control device is a water tank drain valve 25.
  • the water tank drain valve 25 opens when the water level detection device 22 detects that the water level in the water measuring water tank 21 reaches a set value, and discharges the water in the water measuring water tank 21 into the inner cylinder. .
  • the water level detection device 22 described in this embodiment is a liquid level sensor.
  • the liquid level sensor includes an air chamber and a sensor unit, and the air chamber is in communication with the water measuring water tank.
  • the water level detection device 22 includes a plurality of water level detection probes arranged in the water measuring water tank and arranged along its depth direction.
  • the water measuring water tank 21 is provided at the upper portion of the inner cylinder 17, the water outlet is provided on the bottom wall of the water measuring water tank 21, and the water outlet control device keeps the water outlet normally closed
  • the water tank check valve when the amount of water in the water measuring tank reaches a certain value, the water tank check valve opens under the gravity of the water pressure, the water in the water measuring tank 21 is discharged into the inner cylinder 17 and the water tank check valve is reset to keep the water outlet closed .
  • the metering water 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 leading out the overflowing water in the metering water tank.
  • the drum washing machine includes a drain line 8, and the overflow line communicates with the drain line 8.
  • the water measuring device includes a heating device 26 provided in the water measuring water tank 21 and a water temperature detecting device that detects the water temperature in the water measuring water tank.
  • This embodiment also provides a control method of the drum washing machine.
  • the washing machine executes a washing / rinsing procedure.
  • the washing machine controls the washing water to enter the measuring water tank.
  • the water intake is stopped and the amount is changed.
  • All the water in the water tank is discharged into the inner cylinder, and the inlet water is started again to enter the measuring water tank, and the cycle is repeated until the water level in the inner cylinder reaches the set value, and the water inlet is ended.
  • the washing machine controls the washing water to enter the metering water tank.
  • the water intake is stopped, and the heating device is operated to heat the washing water.
  • the water temperature detection device detects that the water temperature in the metering water tank reaches When setting the value, all the water in the measuring water tank is discharged into the inner cylinder.
  • This embodiment mainly solves the problem of how to ensure the air pressure imbalance in the sealed cabin of the non-porous inner drum washing machine, specifically, the sudden solenoid valve water cut, especially the tap water pipe network cut off, forming a negative pressure to backwash the washing water in the sealed cabin To the pipe network; or there is gas inside, and it is difficult to enter the water.
  • a drum washing machine of this embodiment includes an inner tub 17, the inner tub 17 is a non-porous inner tub, which contains washing water when washing clothes, and further includes a connection between the inner tub 17 and the outside world.
  • the environment is an air pressure balance mechanism that balances the air pressure inside the inner cylinder.
  • the gas in the sealed cabin of the inner cylinder can overflow through the equalizing mechanism to ensure the balance of air pressure.
  • the external atmosphere can quickly enter the sealed compartment of the inner cylinder and destroy the reverse suction to ensure the balance of air pressure and prevent the wash water from being sucked into the tap water pipe network.
  • the air pressure balance mechanism can also ensure the air pressure balance of the inner cylinder.
  • the air pressure balancing mechanism includes a pressure equalizing channel 27 provided on the inner cylinder 17, and an end of the pressure equalizing channel 27 communicating with the inner cylinder 17 is provided on the inner cylinder 17 to rotate close to The position of the central axis is always higher than the highest water level position in the inner cylinder 17.
  • the drum washing machine of this embodiment includes a driving motor 16 and an inner drum shaft 13.
  • the driving motor 16 drives the inner drum 17 to rotate through the inner drum shaft 13 and the inner drum 17.
  • the pressure equalizing hole 27 is opened in the inner drum
  • the shaft 13 communicates with the inside of the inner cylinder 17 and the external environment.
  • the highest water level in the inner cylinder 17 is lower than the inner cylinder shaft 13. This can prevent the water in the inner cylinder from flowing out from the pressure equalizing channel.
  • the drum washing machine of this embodiment includes an outer tub 18, the inner tub 17 is disposed inside the outer tub 18, and the water discharged from the inner tub 17 is discharged through the outer tub 18, and the mouth of the inner tub 17 is installed to enclose the inner tub In the cylinder door 6, the cylinder mouth of the outer cylinder 18 is opened, and one end of the pressure equalization channel 27 communicates with the inside of the inner cylinder 17, and the other end is provided inside the outer cylinder 18 to communicate with it. In this way, to prevent extreme conditions, water from the hole can also be collected in the outer cylinder 18.
  • the inner cylinder 17 is provided with an inner cylinder drainage hole on the side wall of the embodiment, a normally closed check valve plug 11 is installed on the inner cylinder drainage hole, and a check valve is installed on the outer cylinder 18 The plug 11 ejects the ejector mechanism 10 for drainage.
  • the outer cylinder 18 is further provided with a locking mechanism for locking the rotation of the inner cylinder. After the locking mechanism locks the inner cylinder, the ejector mechanism pushes the check valve plug to drain.
  • the drum washing machine of this embodiment includes a water inlet line
  • the inner drum shaft 13 has a hollow passage 14 communicating with the inner drum 17, and the water inlet pipe communicates with the hollow passage 14 of the inner drum shaft 13
  • the pressure equalizing channel 27 and the hollow channel 14 communicate with the inner tube 17 and are isolated from each other. In this way, it can be ensured that the gas in the sealed compartment of the inner cylinder can be smoothly discharged to maintain the balance of the air pressure inside the inner cylinder, and at the same time, the inlet water is directly discharged from the pressure equalizing channel 27 and leaks.
  • the hollow channel 27 extends from one end to the other end in the direction of the central axis of the inner cylinder axis
  • the pressure equalizing channel includes a first channel segment and a second channel segment, the first channel segment is disposed parallel to the hollow channel , One end of which communicates with the inside of the inner cylinder, one end of the second hole segment communicates with the first hole segment, and the other end extends to the outer peripheral wall of the inner cylinder shaft and communicates with the inside of the outer cylinder.
  • the second channel section is arranged perpendicular to the first channel section to form an L-shaped pressure equalizing channel.
  • the inner cylinder shaft 13 is connected to a driving motor 16, and the driving motor 16 includes a stator and a rotor, and the rotor is fixedly connected to the inner cylinder shaft; a through hole is provided at the center of the rotor, and the water inlet pipe passes through the rotor The through hole communicates with the hollow channel of the inner cylinder shaft.
  • a first dynamic sealing structure is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage of the inner cylinder shaft.
  • a plurality of dehydration holes are opened on the side wall of the inner drum 17, and centrifugal valves are installed on the dehydration holes.
  • the centrifugal valves are opened for dehydration and drainage under the action of dehydration centrifugal force.
  • This embodiment mainly solves the problem of how to ensure the air pressure imbalance in the sealed cabin of the non-porous inner drum washing machine. Specifically, the sudden solenoid valve cuts off the water, especially the tap water pipe network, which forms a negative pressure and returns the wash water in the sealed cabin. Wash to the pipe network; or there is gas inside, it is difficult to enter the water.
  • a drum washing machine in this embodiment includes an inner tub 17, the inner tub 17 is a non-porous inner tub, which contains washing water when washing clothes, and further includes a connection between the inner tub and the external environment The pressure boosting mechanism and / or pressure relief mechanism to balance the air pressure inside the inner cylinder 17.
  • the supercharging mechanism described in this embodiment includes a supercharging hole 28 and a negative pressure safety valve 29.
  • the negative pressure safety valve 29 is provided on the supercharging hole 28 and is used when the internal pressure of the inner cylinder 17 is less than the atmospheric pressure of the external environment.
  • the pressure-increasing hole 28 is guided, the external ambient gas enters the inner cylinder 17 from the pressure-increasing hole 28 to be pressurized until the internal air pressure of the inner cylinder 17 is balanced with the external environment air pressure, and the negative pressure safety valve 29 is closed.
  • the pressure relief mechanism described in this embodiment includes a pressure relief channel 30 and a positive pressure safety valve 31.
  • the pressure relief channel 30 is disposed on the inner cylinder 17 near the center axis of rotation and is always higher than the highest in the inner cylinder 17
  • the position of the water level, the positive pressure safety valve 31 is provided on the pressure relief hole 30, and is used for unidirectionally venting the pressure relief hole 30 to relieve pressure 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 and The ambient air pressure is balanced and the positive pressure safety valve 31 is closed.
  • the positive pressure safety valve opens and can overflow through the pressure relief hole to ensure the air pressure balance .
  • the gas in the sealed compartment of the inner cylinder 17 is pressurized. Once it is less than the set value of the positive pressure safety valve, the outside atmosphere can quickly enter the sealed compartment and destroy the reverse suction to ensure the air pressure balance Avoid washing water being sucked into the tap water network.
  • the air pressure balance mechanism can also ensure the air pressure balance of the inner cylinder.
  • the drum washing machine of this embodiment includes a driving motor 16 and an inner drum shaft 13.
  • the driving motor 16 drives the inner drum 17 to rotate through the inner drum shaft 13 and the inner drum 17.
  • the pressurizing holes 28 and / or the drain The pressure hole channel 30 is opened on the inner cylinder shaft 13 to communicate the inside of the inner cylinder 17 with the external environment.
  • the highest water level in the inner cylinder 17 is lower than that of the inner cylinder shaft 13.
  • the drum washing machine of this embodiment includes an outer tub 18, the inner tub 17 is disposed inside the outer tub 18, and water discharged from the inner tub 17 is discharged through the outer tub 18, and the inner mouth of the inner tub 17 is installed with an inner tub that closes the inner tub In the door 6, the mouth of the outer cylinder 18 is open, and one end of the pressurization hole 28 and / or pressure relief hole 30 communicates with the inside of the inner cylinder 17, and the other end is provided inside the outer cylinder 18 to communicate with it.
  • the drum washing machine of this embodiment includes a water inlet pipe, the inner drum shaft 13 has a hollow passage 14 communicating with the inner drum 17, and the water inlet pipe communicates with the hollow passage 14 of the inner drum shaft 13;
  • the pressure relief hole 30 and the hollow channel 14 are respectively communicated with the inside of the inner cylinder 17 and are isolated from each other.
  • the hollow channel 14 extends from one end to the other end along the central axis of the inner cylinder shaft 13.
  • the pressure relief channel 30 includes a first channel segment and a second channel segment, the first The hole section is arranged parallel to the hollow channel, one end of which communicates with the inside of the inner cylinder, one end of the second hole section communicates with the first hole section, and the other end extends to the outer peripheral wall of the inner cylinder shaft and communicates with the inside of the outer cylinder;
  • the second channel section is arranged perpendicular to the first channel section to form an L-shaped pressure relief channel.
  • the drum washing machine of this embodiment includes a water inlet pipe, the inner drum shaft 13 has a hollow passage 14 communicating with the inner drum 17, and the water inlet pipe communicates with the hollow passage 14 of the inner drum shaft 13;
  • the pressurization hole 28 described above communicates with the hollow passage 14.
  • the hollow passage 14 extends from one end to the other end in the direction of the central axis of the inner cylinder shaft 13, one end of the pressurizing hole 28 communicates with the hollow passage 14, and the other end extends to the outer periphery of the inner cylinder shaft 13
  • the wall communicates with the inside of the outer cylinder 18.
  • the pressurizing hole 28 and the hollow channel 14 are perpendicular to each other.
  • the inner cylinder shaft described in this embodiment is connected to a driving motor.
  • the driving motor includes a stator and a rotor, and the rotor is fixedly connected to the inner cylinder shaft; a through hole is provided at the center of the rotor, and the water inlet pipe passes through the through hole of the rotor Communicate with the hollow channel of the inner cylinder shaft.
  • a first dynamic sealing structure is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage of the inner cylinder shaft.
  • the pressurizing holes 28 and the pressure relief holes 30 are both provided on the inner cylinder shaft 13, and the communication atmospheric openings are both inside the outer cylinder 18; The inner side of the water inlet channel 14 of the shaft 13.
  • the preferred pressurization holes 28 and pressure relief holes 30 are both provided on the inner cylinder shaft 13 and the communication atmospheric openings are both inside the outer cylinder 18; the openings of the sealed compartments of the connected inner cylinder 17 are all inside the sealed compartment.
  • a drum washing machine of this embodiment includes an inner tub 17, the inner tub 17 is a non-porous inner tub, which contains washing water when washing clothes, and also includes position detection for detecting the position of the inner tub Device.
  • the drum washing machine of this embodiment includes a driving motor 16 and an inner drum shaft 13, the driving motor 16 includes a stator and a rotor, and the rotor is fixedly connected to the inner drum shaft 13 to drive the inner drum 17 to rotate.
  • the position detection device includes a position sensor 33 and The detected terminal 38 is provided on the rotor, and the position sensor 33 is fixed at a position corresponding to the detected terminal 38.
  • the drum washing machine of this embodiment includes an outer tub 18.
  • the position sensor 33 is disposed on the side of the outer tub 18 near the drive motor 16.
  • the position sensor 33 is disposed corresponding to the detected terminal 38 at intervals.
  • the position sensor is an electromagnetic position sensor, or a photoelectric position sensor, or a differential voltage sensor, or an eddy current sensor, or a capacitive sensor, or a reed switch type Sensors, or Hall sensors.
  • the drum washing machine of this embodiment includes a locking mechanism 35 for locking the rotation of the inner drum, and the position detection device is used to lock the inner drum 17 after the locking mechanism 35 is locked to detect whether it is locked in place, and / or After the position detection device detects that the inner cylinder 17 rotates to the set position, the locking mechanism 35 locks the inner cylinder 17.
  • the locking mechanism 35 is installed on the side wall of the outer cylinder 18 close to the driving motor 16, and the locking mechanism 35 includes a locking rod 40 that telescopically moves and a locking motor 41 that drives the telescopic movement of the locking rod 40,
  • the rotor of the driving motor 16 is provided with a locking slot 39 corresponding to the locking lever 40.
  • the inner cylinder 17 is provided with an inner cylinder drain hole on the side wall, a normally closed check valve plug 11 is installed on the inner cylinder drain hole, and a check valve is installed on the outer cylinder
  • the plug opens the jack mechanism 10 for drainage; the locking mechanism 35 locks the inner cylinder 17 and the jack mechanism 10 jacks the one-way valve plug 11 for drainage.
  • the jack mechanism is installed on the outer cylinder.
  • the jack mechanism includes a telescoping jack and a jack motor that drives the jack rod to telescopically move.
  • the jack is inserted into the inner cylinder through the cylinder wall of the outer cylinder. Open the check valve plug in the drain hole to drain.
  • the drum washing machine of this embodiment includes a main controller, and the position detection sensor, the lock motor, and the ejector motor are all electrically connected to the main controller.
  • a plurality of dehydration holes are opened on the side wall of the inner drum, and centrifugal valves are installed on the dehydration holes.
  • the centrifugal valves are opened under the action of dehydration centrifugal force for dehydration and drainage.
  • the washing machine of this embodiment has a position sensor 33, which is disposed on the outer tub 18 and the driving motor 16, and is specifically disposed on the back of the outer tub 18 and the rotor frame where the driving motor 16 rotates.
  • the position sensor 33 senses the position of the detected terminal 38 on the rotating rotor skeleton, and converts it into a signal, which is fed back to the main controller 4 of the washing machine via the line 43.
  • the position of the detected terminal 38 on the rotor frame corresponds to the position of the rotating inner cylinder.
  • the washing machine of this embodiment has a mounting bracket 32. After the fixing knot 34 is fixed to the outer cylinder, a locking motor, a locking lever and a position sensor are installed on the mounting bracket 32; the rotor frame of the driving motor has a locking groove and a detected terminal 38 .
  • a drum washing machine of this embodiment includes an inner tub 17 and an outer tub 18.
  • the inner tub 17 is a non-porous inner tub, which contains washing water when washing clothes
  • the outer tub 18 is coaxially disposed Outside the inner cylinder 17, it is used to collect the water discharged from the inner cylinder 17 and drain it through the drain line, and also includes a position detection device provided on the outer cylinder 18 to detect the position of the inner cylinder.
  • the position detection device includes a position sensor 37 and a detected terminal 38.
  • the detected terminal 38 is disposed on the inner cylinder 17.
  • the position sensor 37 is disposed on the inner wall of the outer cylinder 18 and is connected to the inner cylinder 17.
  • the detection terminal 38 is correspondingly provided.
  • the detected terminal 38 is provided on the side wall of the inner tube 17, the position sensor 37 is provided on the inner side wall of the outer tube 18, and the circumference of the inner tube 17 where the detected terminal 38 is located is The circumference on the outer cylinder 18 where the position sensor 37 is located is concentrically arranged.
  • the position sensor 37 is provided on the inner side wall of the upper portion of the outer cylinder 18.
  • the position sensor is an electromagnetic position sensor, or a photoelectric position sensor, or a differential voltage sensor, or an eddy current sensor, or a capacitive sensor, or a reed switch sensor, or a Hall sensor .
  • the drum washing machine of this embodiment includes a locking mechanism 35 for locking the rotation of the inner drum, and the position detection device is used to lock the inner drum 17 after the locking mechanism 35 is locked to detect whether it is locked in place, and / or After the position detection device detects that the inner cylinder 17 rotates to the set position, the locking mechanism 35 locks the inner cylinder.
  • the locking mechanism 35 is mounted on the outer cylinder 18, and the locking mechanism 35 includes a locking rod that telescopically moves and a locking motor that drives the telescopic movement of the locking rod, and the inner cylinder 17 is provided corresponding to the locking rod With the locking groove 39 cooperating with it, when the locking lever is extended and inserted into the locking groove 39 under the drive of the locking motor, the inner cylinder 17 is locked.
  • a lifting rib 43 is installed at the locking groove 39 to realize that the locking groove 39 is hidden. Further, the detected terminal 38 is installed in the lifting rib 43.
  • the inner cylinder 17 is provided with an inner cylinder drain hole on the side wall, a normally closed check valve plug 11 is installed on the inner cylinder drain hole, and the outer cylinder 18 is installed for
  • the ejector mechanism 10 pushes the one-way valve plug 11 to drain; the locking mechanism 35 locks the inner cylinder 17 and the ejector mechanism 10 ejects the one-way valve plug 11 to drain.
  • the jack mechanism 10 is installed on the outer cylinder 18, and the jack mechanism 10 includes a telescoping jack and a jack motor that drives the telescoping movement of the jack.
  • the jack is inserted through the wall of the outer cylinder Open the check valve plug in the drain hole of the inner cylinder to drain.
  • the drum washing machine of this embodiment includes a main controller 4, and the position detection sensor, the lock motor, and the ejector motor are all electrically connected to the main controller.
  • a plurality of dehydration holes are opened on the side wall of the inner drum, and centrifugal valves are installed on the dehydration holes.
  • the centrifugal valves are opened under the action of dehydration centrifugal force for dehydration and drainage.
  • a control method for a drum washing machine includes an inner drum, a position detection device for detecting the position of the inner drum, and a locking mechanism for locking the rotation of the inner drum. Washing water, the control method includes:
  • the locking mechanism is controlled to lock the inner cylinder, and / or, after the locking mechanism locks the inner cylinder, the position detection apparatus detects whether the inner cylinder is locked In place.
  • the washing machine includes a driving motor that drives the inner drum to rotate.
  • the washing machine controls the driving motor to decelerate to execute the inner drum stop rotating procedure.
  • the detection device detects that the inner cylinder rotates to the set position, then controls the drive motor to stop rotating and keeps the inner cylinder in a fixed position, and controls the locking mechanism to lock the inner cylinder to discharge water.
  • the washing machine includes a drive motor that drives the inner drum to rotate. During the washing or rinsing process, the washing machine controls the drive motor to decelerate to execute the inner drum stop rotation procedure. When the inner drum speed falls below the set safe speed, the locking mechanism is controlled to lock the inner drum If the position detection device detects that the inner cylinder rotates to the set position, it performs drainage, otherwise it does not start drainage.
  • the inner cylinder drain hole is provided on the side wall of the inner cylinder, a normally closed check valve plug is installed on the inner cylinder drain hole, and the outer cylinder is installed to eject the check valve plug for drainage Ejector mechanism;
  • the drainage procedure includes: after the locking mechanism locks the inner cylinder, the ejector mechanism is controlled to eject the one-way valve plug for drainage.
  • the washing machine includes a driving motor that drives the inner drum to rotate.
  • the washing machine controls the driving motor to decelerate to execute the inner drum stop rotation procedure.
  • the drive motor is controlled to stop rotating and keep the position of the inner drum unchanged, the locking mechanism is controlled to lock the inner drum, the dehydration process ends, and the door lock is released.
  • the washing machine in this embodiment includes a drive motor that drives the inner drum to rotate. During the dehydration process, the washing machine controls the drive motor to decelerate to execute the inner drum stop rotation procedure. Lock, the dehydration program ends, and the door lock is released. If the position detection device does not detect that the inner cylinder rotates to the set position, an alarm will be given.
  • the drum washing machine of this embodiment includes a driving motor and an inner drum shaft.
  • the driving motor includes a stator and a rotor.
  • the rotor is fixedly connected to the inner drum shaft to drive the inner drum to rotate.
  • the position detection device includes a position sensor and a detected terminal. The detection terminal is provided on the rotor, and the position sensor is fixed at a position corresponding to the detected terminal;
  • the inner cylinder rotates to the set position, and / or, after the locking mechanism locks the inner cylinder, and the rotor rotates to the relative position of the detected end and the position sensor, The inner cylinder is locked in place.
  • the locking mechanism described in this embodiment is installed on the side wall of the outer cylinder close to the driving motor.
  • the locking mechanism includes a locking rod that telescopically moves and a locking motor that drives the telescopic movement of the locking rod.
  • the rotor of the driving motor The corresponding locking bar is provided with a locking groove matched with it. When the locking bar is extended and inserted into the locking groove under the drive of the locking motor, the inner cylinder is locked.
  • the drum washing machine of this embodiment includes an outer tub, and the outer tub is coaxially arranged outside the inner tub, and is used to collect water discharged from the inner tub and discharge it through the drainage pipeline.
  • the position detection device includes a position sensor and a detected Terminals, the detected terminals are arranged on the inner cylinder, and the position sensor is arranged on the inner wall of the outer cylinder and is arranged corresponding to the detected terminals on the inner cylinder;
  • the inner cylinder rotates to the set position, and / or, after the locking mechanism locks the inner cylinder, and the rotor rotates to the relative position of the detected end and the position sensor, The inner cylinder is locked in place.
  • the locking mechanism described in this embodiment is installed on the outer cylinder.
  • the locking mechanism includes a locking rod that telescopically moves and a locking motor that drives the telescopic movement of the locking rod.
  • the inner cylinder is provided with a lock corresponding to the locking rod. The locking groove, when the locking lever is extended and inserted into the locking groove under the driving of the locking motor, the inner cylinder is locked.

Abstract

La présente invention concerne une machine à laver à tambour, comprenant un tambour interne (17), le tambour interne (17) étant un tambour interne non perforé et contenant de l'eau de lavage lors du lavage du linge ; et comprenant en outre un mécanisme d'équilibrage de la pression de l'air pour faire communiquer le tambour interne (17) avec l'environnement extérieur, de façon à équilibrer la pression de l'air à l'intérieur du tambour interne (17). La machine à laver à tambour a une structure simple qui permet d'éviter le remplissage d'eau de lavage/rinçage entre le tambour interne (17) et un tambour externe (18), ce qui permet de réduire considérablement la quantité d'eau de lavage utilisée par la machine à laver. Lorsque de l'eau pénètre dans la machine à laver à tambour, l'air d'une chambre étanche du tambour interne (17) est pressurisé et peut s'échapper à travers le mécanisme d'équilibrage de la pression de l'air, en assurant ainsi l'équilibre de la pression de l'air. Lorsque l'eau s'arrête soudainement, l'air extérieur peut entrer rapidement dans la chambre étanche du tambour interne (17) et détruire l'aspiration arrière, ce qui garantit l'équilibre de la pression de l'air et empêche l'eau de lavage d'être aspirée dans un réseau de tuyaux d'eau de robinet.
PCT/CN2019/111395 2018-10-23 2019-10-16 Machine à laver à tambour WO2020083077A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021521538A JP7266775B2 (ja) 2018-10-23 2019-10-16 ドラム洗濯機

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201811237072.2A CN111172715A (zh) 2018-10-23 2018-10-23 一种滚筒洗衣机
CN201811237073.7A CN111088635A (zh) 2018-10-23 2018-10-23 一种滚筒洗衣机
CN201811237072.2 2018-10-23
CN201811237073.7 2018-10-23

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WO2020083077A1 true WO2020083077A1 (fr) 2020-04-30

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CN101126201A (zh) * 2006-08-14 2008-02-20 三星电子株式会社 洗衣机及其水位控制方法
CN203307623U (zh) * 2013-06-24 2013-11-27 惠而浦(中国)投资有限公司 滚筒式洗干一体机冷凝通风防溢水系统
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