CN112095300B - Laundry treating apparatus and control method thereof - Google Patents
Laundry treating apparatus and control method thereof Download PDFInfo
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- CN112095300B CN112095300B CN201910472194.8A CN201910472194A CN112095300B CN 112095300 B CN112095300 B CN 112095300B CN 201910472194 A CN201910472194 A CN 201910472194A CN 112095300 B CN112095300 B CN 112095300B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 491
- 238000003860 storage Methods 0.000 claims abstract description 91
- 238000002347 injection Methods 0.000 claims abstract description 57
- 239000007924 injection Substances 0.000 claims abstract description 57
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims description 52
- 238000007599 discharging Methods 0.000 claims description 2
- 239000008236 heating water Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 description 33
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
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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
- 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
- D06F39/087—Water level measuring or regulating devices
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The embodiment of the application provides a clothes treatment device and a control method thereof, wherein the clothes treatment device comprises an outer cylinder, an inner cylinder, a water injection assembly, a water storage cavity and a detection device; the inner cylinder is rotationally arranged in the outer cylinder, the inner cylinder can hold water, and overflow holes are formed in the preset water level of the inner cylinder; the water injection assembly can inject water into the inner cylinder, and the water storage cavity can store water overflowed from the overflow hole; the detection device is configured to: the water level in the water storage cavity can be detected, so that whether the water level in the inner cylinder reaches a preset water level or not can be detected in the water injection stage of the inner cylinder. In the clothes treatment equipment provided by the embodiment of the application, in the water injection stage, whether the water level in the inner cylinder reaches the preset water level is judged by judging whether water overflows from the overflow hole to the water storage cavity, so that the detection mode is simple, the water injection speed of the inner cylinder is not influenced, and the water injection time of the inner cylinder is not influenced.
Description
Technical Field
The present application relates to the field of laundry cleaning technology, and more particularly, to a laundry treating apparatus and a control method thereof.
Background
The existing washing machine, inner tube and urceolus intercommunication each other, the inner tube is used for holding the clothes, and the urceolus is used for holding water, is provided with a large amount of water holes on the inner tube, and inner tube and urceolus are through water hole intercommunication, and the water in the urceolus gets into the inner tube, through urceolus water injection and drainage, and dirt is received easily to this type of washing machine between inner and outer tubes, breeds the bacterium, is difficult to wash. Therefore, in the related art, a washing machine with a single drum washing is presented, unlike the existing washing method, the inner drum is a non-porous inner drum, isolated from the outer drum, and the single drum is used for not only holding clothes, beating or stirring the clothes, but also holding water. Water level detection of single drum washing machine becomes a difficult technology for urgent need to overcome
In the related art, the water level detection method is as follows: and installing a constant volume box on the water inlet pipe, injecting water into the constant volume box, stopping water inlet after the water in the constant volume box is full, then releasing the water in the constant volume box into the inner barrel, and re-feeding water into the constant volume box after the water is released. The mode can influence the water injection and the speed of the inner cylinder, and the water injection time of the inner cylinder is prolonged.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a laundry treating apparatus and a control method thereof that facilitate detection of whether an inner tub reaches a preset water level.
In order to achieve the above object, an aspect of an embodiment of the present application provides a laundry treatment apparatus, including an outer tub, an inner tub, a water injection assembly, a water storage chamber, and a detection device; the inner cylinder is rotationally arranged in the outer cylinder, the inner cylinder can hold water, and overflow holes are formed in the preset water level of the inner cylinder; the water injection assembly can inject water into the inner cylinder; the water storage cavity can store water overflowed from the overflow holes; the detection device is configured to: the water level in the water storage cavity can be detected, so that whether the water level in the inner cylinder reaches a preset water level or not can be detected in the water injection stage of the inner cylinder.
Further, the laundry treatment apparatus comprises a control device in signal connection with the detection device, the control device being configured to: and in the water injection stage of the inner cylinder, whether the water level in the inner cylinder reaches a preset water level can be judged according to the detection result of the detection device.
Further, the control device is in signal connection with the water injection assembly, and the control device can control the water injection assembly to stop water injection under the condition that the control device judges that the water level in the inner cylinder reaches the preset water level.
Further, a bottom space within the outer cartridge is formed as at least part of the water storage chamber.
Further, the overflow hole is located higher than the highest water level allowed by the water storage cavity.
Further, the clothes treating apparatus includes a heating member disposed in the water storage chamber, a part of the inner cylinder extends into the water storage chamber, and the heating member heats the inner cylinder through water in the water storage chamber and heats water in the inner cylinder through the inner cylinder.
Further, the detection device comprises an air chamber and a water level sensor, wherein the air chamber is connected between the water storage cavity and the water level sensor, and the water level sensor can send out different frequency signals according to the air pressure change of the air chamber.
Further, the bottom wall of the outer tub is formed with a drain port, and the laundry treating apparatus includes a drain pipe connected to the drain port and a connection water pipe connected between the drain pipe and the air chamber.
Further, a water passing hole communicated with the water storage cavity is formed in the side wall of the outer barrel, the air chamber is connected to the outer side of the outer barrel, and water in the water storage cavity acts on one side of the air chamber through the water passing hole.
Further, the inner cylinder is provided with a rotation axis, the rotation axis extends along the horizontal direction, at least one end of the inner cylinder along the rotation axis direction is a closed end, and the closed end is provided with the overflow hole.
Another aspect of the embodiments of the present application provides a control method of a laundry treatment apparatus, including the steps of:
injecting water into the inner cylinder, wherein water in the inner cylinder can enter the water storage cavity through overflow holes in the inner cylinder;
judging whether the water level in the inner cylinder reaches a preset water level according to the water level in the water storage cavity.
Further, the control method includes: the step of injecting water into the inner cylinder specifically comprises the following steps:
injecting water into the inner cylinder until the water level in the water storage cavity reaches a first water level, and stopping injecting water;
after stopping water injection for a preset time, water is injected into the inner cylinder again until the water level in the water storage cavity reaches a second water level, wherein the second water level is higher than the first water level.
Further, the control method includes:
controlling water in the outer cylinder to be in contact with part of the outer surface of the inner cylinder;
and controlling a heating element to heat the water in the outer cylinder, heating the inner cylinder through the water in the outer cylinder, and heating the water in the inner cylinder through the inner cylinder.
Further, the controlling the water in the outer cylinder to be in contact with a part of the outer surface of the inner cylinder comprises the following steps: and determining that the water level in the outer cylinder reaches a third water level.
Further, before the controlling water in the outer cylinder can be contacted with part of the outer surface of the inner cylinder, the controlling method comprises the following steps: it is determined that heating is required.
Further, the control heating element heats water stored in the outer cylinder, and comprises: and heating water in the outer cylinder until the water temperature in the outer cylinder reaches a preset temperature, and stopping heating.
Further, after the heating stopping step, the control method further includes: and discharging the water in the outer cylinder.
In the clothes treatment equipment provided by the embodiment of the application, in the water injection stage, whether the water level in the inner cylinder reaches the preset water level is judged by judging whether water overflows from the overflow hole to the water storage cavity, the detection mode is simple, the water injection process and the water injection speed of the inner cylinder are not influenced, and the water injection time of the inner cylinder is not influenced.
Drawings
Fig. 1 is a partial schematic structure view of a laundry treating apparatus according to an embodiment of the present application, wherein an arrow direction indicates a water flow direction of water injected into an inner tub, and L indicates a water level in an outer tub;
fig. 2 is a partial schematic structural view of a laundry treating apparatus according to another embodiment of the present application, wherein an arrow direction indicates a water flow direction of water injected into an inner tub, L indicates a water level in an outer tub, and overflow holes are not shown;
FIG. 3 is an enlarged schematic view of a portion of FIG. 1 at A;
fig. 4 is a flowchart of a control method according to an embodiment of the application.
Description of the reference numerals
An outer cylinder 10; a water storage chamber 101; a drain port 10a; a water passing hole 10b; an inner cylinder 20; an overflow hole 20a; a heating member 30; a drain pipe 31; a water inlet passage 40a; a first support shaft 41; a second support shaft 42; a detection device 50; an air chamber 51; a water level sensor 52; a connecting water pipe 53; a gas pipe 54; a control device 60; a water injection assembly 70; a water inlet pipe 71; water valve 72
Detailed Description
It should be noted that, in the case of no conflict, the embodiments of the present application and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as unduly limiting the present application.
In the description of the present application, the terms "upper," "lower," "top," "bottom," or positional relationships are based on those shown in fig. 1, and it should be understood that these directional terms are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
An embodiment of the present application provides a clothes treating apparatus, referring to fig. 1 and 2, including an outer tub 10, an inner tub 20, a water injection assembly 70, a water storage chamber 101, and a detection device 50; the inner cylinder 20 is rotatably disposed in the outer cylinder 10, and the inner cylinder 20 can hold water, that is, the washing water is held in the inner cylinder 20 during the process of washing the clothes by the clothes treatment device, and the inner cylinder 20 can also be called a non-porous inner cylinder 20, so that the problem that dirt is easy to be accumulated due to the fact that the outer cylinder 10 holds the washing water in the prior art can be avoided; referring to fig. 3, an overflow hole 20a is provided at a predetermined water level of the inner cylinder 20, and when the water level in the inner cylinder 20 reaches the predetermined water level, excess water can overflow through the overflow hole 20a; the water storage cavity 101 can store water overflowed from the overflow hole 20a, that is, the water in the inner cylinder 20 can enter the water storage cavity 101 after flowing out from the overflow hole 20a; the water injection assembly 70 is capable of injecting water into the inner cartridge 20.
The detection device 50 is configured to: the water level in the water storage chamber 101 can be detected so that it can be detected whether the water level in the inner tub 20 reaches a preset water level at the water filling stage of the inner tub 20.
In the clothes treating apparatus according to the embodiment of the present application, the detection device 50 sends out a detection result corresponding to the current water level in the water storage chamber 101 before the water is injected into the inner drum 20; after the water injection assembly 70 starts to inject water, the detection result which is sent by the detection device 50 and represents the water level in the water storage cavity 101 is the same before the water level in the inner barrel 20 does not reach the preset water level; when the water level in the inner cylinder 20 reaches the preset water level, the excessive water overflows into the water storage cavity 101 through the overflow hole 20a, so that the water level in the water storage cavity 101 changes, the detection device 50 sends out a detection result corresponding to the changed water level, and according to comparison of the detection results, water can be known to enter the water storage cavity 101 from the overflow hole 20a, and therefore the water level in the inner cylinder 20 can be judged to reach the preset water level.
It will be appreciated that if there is no water in the reservoir 101 prior to filling the cartridge 20, the water level in the reservoir 101 is considered to be 0.
In the clothes treatment equipment provided by the embodiment of the application, in the water injection stage, whether the water level in the inner cylinder 20 reaches the preset water level is judged by judging whether water overflows from the overflow hole 20a to the water storage cavity 101, the detection mode is simple, the water injection process and the water injection speed of the inner cylinder 20 are not influenced, and the water injection time of the inner cylinder 20 is not influenced.
It can be understood that it may be manually determined that the water level in the inner cylinder 20 reaches the preset water level according to the detection result, for example, the detection result such as the output frequency of the detection device 50 is displayed for determining according to the frequency comparison; or the laundry treating apparatus may automatically judge.
In one embodiment of the present application, the laundry treating apparatus includes a control device 60, where the control device 60 is in signal connection with the detecting device 50, so that the control device 60 can receive the detection result sent by the detecting device 50; the control device 60 is configured to: whether the water level in the inner drum 20 reaches the preset water level can be judged according to the detection result of the detection device 50 in the water injection stage of the inner drum 20, and the water level is automatically judged by the control device 60, so that the intervention is not required, and the automation level of the clothes treatment equipment is improved.
Further, in an embodiment, the control device 60 is in signal connection with the water injection assembly 70, and the control device 60 can control the water injection assembly 70 to stop water injection under the condition that the control device 60 determines that the water level in the inner cylinder 20 reaches the preset water level. In this way, the control device 60 can automatically judge and automatically control the water injection assembly 70 to stop water injection, and the automation level of the clothes treatment equipment can be further improved.
The inner cylinder 20 has a rotational axis, that is, the inner cylinder 20 rotates along the rotational axis. The rotation axis may extend in the horizontal direction, may extend in the vertical direction, and may extend in an oblique direction between the horizontal direction and the vertical direction.
In the embodiment of the present application, referring to fig. 1 and 2, the rotation axis extends in the horizontal direction, and at least one end of the inner cylinder 20 in the rotation axis direction is a closed end, and the closed end is provided with an overflow hole 20a. Because the rotation axis extends along the horizontal direction, correspondingly, the motor and other structures for driving the inner cylinder 20 to rotate are also located in the axial direction of the inner cylinder 20, the motor and other structures cannot be contacted with water overflowed from the overflow hole 20a, and the motor and other structures do not need to be subjected to waterproof treatment, so that the structure of the clothes treatment equipment is simple and compact.
In one embodiment, two ends of the inner cylinder 20 along the rotation axis direction are closed ends, and the two closed ends are rotatably supported on the outer cylinder 10; the top of the outer tub 10 is formed with a first laundry taking and putting port (not shown), the circumference of the inner tub 20 is formed with a second laundry taking and putting port (not shown) which is matched with the first laundry taking and putting port, and a closing door (not shown) which can selectively close the second laundry taking and putting port and avoid the second laundry taking and putting port. When putting in the clothing, the closing door dodges the second clothing and gets and put the mouth, and the second clothing is got and is put the mouth and open, and first clothing gets and put mouthful and second clothing and get and put mouthful cooperation, and the second clothing is got and is put mouthful and aim at first clothing and get and put mouthful, and the clothing is got and is put mouthful and second clothing is got and put mouthful and second clothing in proper order and get and put mouthful can place in inner tube 20. After putting clothes, the closing door is closed. It is understood that the closing door seals the periphery of the second laundry taking and putting port to prevent water leakage.
In one embodiment, the laundry treating apparatus includes a first support shaft 41 and a second support shaft 42, one end of the inner tub 20 in the rotation axis direction is supported on the outer tub 10 by the first support shaft 41, and the other end of the inner tub 20 in the rotation axis direction is supported on the outer tub 10 by the second support shaft 42. Opposite ends of the inner cylinder 20 along the rotation axis are supported on the outer cylinder 10, so that stress conditions of the inner cylinder 20 can be improved, and rotation stability and reliability of the inner cylinder 20 can be improved.
In the embodiment of the present application, the water injection manner of the inner cylinder 20 is not limited. For example, in one embodiment, referring to fig. 1, one of the first support shaft 41 and the second support shaft 42 is formed with a water inlet passage 40a, one end of the water inlet passage 40a is communicated with the inside of the inner cylinder 20, and the other end of the water inlet passage 40a is connected with the water injection assembly 70. Specifically, in one embodiment, the water injection assembly 70 includes a water inlet tube 71 and a water valve 72, wherein the water inlet tube 71 communicates with the water valve 72 and the water inlet passage 40a, thereby enabling water injection into the inner barrel 20. In another embodiment, referring to fig. 3, water is injected from the vicinity of the closed end near the axis of rotation.
The control device 60 may be a control main board of the laundry treating apparatus in an embodiment.
The detecting device 50 may be any structure capable of detecting a change in water level, for example, the detecting device 50 may be a pressure sensor or a liquid level sensor.
In the embodiment of the application, the detection is performed by adopting a pressure sensor. Specifically, the detection device 50 includes an air chamber 51, an air pipe 54, and a water level sensor 52, the air chamber 51 is connected between the water storage chamber 101 and the water level sensor 52, and the water level sensor 52 can send out a frequency signal according to the air pressure change of the air chamber 51, where the frequency signal is a detection signal. Specifically, the water pressure in the water storage chamber 101 acts on one side of the air chamber 51, the air chamber 51 is communicated with the water level sensor 52 through the air pipe 54, the water pressure in the water storage chamber 101 is transmitted to the water level sensor 52 through the air in the air chamber 51, the water level sensor 52 can convert the pressure into corresponding frequency, and the control device 60 judges according to the frequency signal. For example, when there is no water in the water storage chamber 101, the frequency emitted by the water level sensor 52 is f1, the water in the inner tube 20 enters the water storage chamber 101 from the overflow hole 20a, the pressure of the air chamber 51 changes, the frequency emitted by the water level sensor 52 is f2, and the control device 60 detects that the frequency changes from f1 to f2, so that it is known that water enters the water storage chamber 101. In the water injection stage, no other waterway enters the water storage cavity 101, so that water entering the water storage cavity 101 can be obtained from water overflowed from the inner cylinder 20, and the water level in the inner cylinder 20 is judged to reach the preset water level. Because the air chamber 51 collects the water pressure in the water storage chamber 101, the installation position of the water level sensor 52 is not limited, and the water level sensor can be installed outside the outer tub 10, so that the space between the inner tub 20 and the outer tub 10 is not occupied, and the gap between the inner tub 20 and the outer tub 10 can be small, so that the laundry treating apparatus is compact.
The air chamber 51 may be provided in the outer tube 10 or may be provided inside the outer tube 10.
In an embodiment, the bottom space in the outer cylinder 10 is formed into at least part of the water storage cavity 101, the bottom of the outer cylinder 10 is used for storing water, and water overflowed from the overflow hole 20a can naturally flow into the bottom of the outer cylinder 10, so that the structure of the outer cylinder 10 can be fully utilized without additionally arranging a special water storage cavity 101. It should be noted that, referring to fig. 2, the whole water storage cavity 101 may be located at the bottom of the outer cylinder 10, or the bottom space of the outer cylinder 10 and other spaces may together form the water storage cavity 101.
In order to avoid water in the water storage chamber 101 from flowing backward into the inner cylinder 20, the overflow hole 20a is located higher than the highest water level allowed by the water storage chamber 101.
In one embodiment, referring to fig. 2, the whole water storage cavity 101 is located at the bottom of the outer cylinder 10, a water passing hole 10b communicating with the water storage cavity 101 is formed on the side wall of the outer cylinder 10, the air chamber 51 is connected to the outer side of the outer cylinder 10, and water in the water storage cavity 101 acts on one side of the air chamber 51 through the water passing hole 10 b. In this way, integrating the air chamber 51 on the outer tub 10 can make the laundry treating apparatus compact.
In another embodiment, referring to fig. 1, a drain outlet 10a communicating with a water storage chamber 101 is formed on a bottom wall of an outer tub 10, the laundry treating apparatus includes a drain pipe 31 and a connecting water pipe 53, the drain pipe 31 is connected to the drain outlet 10a, the connecting water pipe 53 is connected between the drain pipe 31 and an air chamber 51, that is, water in the water storage chamber 101 sequentially passes through the drain outlet 10a, the drain pipe 31 and the connecting water pipe 53 and then acts on one side of the air chamber 51, in this embodiment, a bottom space of the outer tub 10 and a space in the drain pipe 31 together form the water storage chamber 101. The drain pipe 31 can be used for multiple purposes, and the outlet of the drain pipe 31 is closed in the water injection stage; in the drain stage, the laundry treating apparatus may drain water out of the laundry treating apparatus through the drain pipe 31. In the present embodiment, the air chamber 51 is communicated with the drain pipe 31, and the conventional outer tube 10 may be used without opening the side wall of the outer tube 10.
In one embodiment, referring to fig. 1 and 2, the laundry treating apparatus includes a heating element 30, the heating element 30 is disposed in the water storage cavity 101, a part of the structure of the inner drum 20 extends into the water storage cavity 101, and the heating element 30 heats the inner drum 20 through water in the water storage cavity 101 and heats water in the inner drum 20 through the inner drum 20. When the washing needs to be heated, the water in the water storage cavity 101 is heated by the heating element 30, the water in the water storage cavity 101 heats the inner cylinder 20, the temperature of the inner cylinder 20 is increased, the inner cylinder 20 further heats the washing water in the inner cylinder 20, and thus the washing water in the inner cylinder 20 can be indirectly heated.
The clothes treatment equipment of the embodiment can heat the washing water only by arranging the heating element 30 between the outer cylinder 10 and the inner cylinder 20, has a simple structure and is easy to realize; the water in the water storage cavity 101 is separated from the washing water in the inner barrel 20, and the water in the water storage cavity 101 does not pollute the washing water in the inner barrel 20, so that the clothes washing is more sanitary; in the rotation process of the inner cylinder 20, different parts of the inner cylinder 20 are in contact with hot water in the water storage cavity 101 in turn, so that the heat transfer efficiency is improved, and water in the inner cylinder 20 can be heated uniformly; the water injection process of the inner cylinder 20 is not affected by the heating process of the water in the water storage cavity 101, and the inner cylinder 20 can feed water according to the normal speed and flow; in the subsequent washing process, the inner cylinder 20 exchanges heat with water in the water storage cavity 101 in a large area, and is heated while washing, so that the washing time is not influenced in the heating process, the temperature is convenient to adjust according to actual needs, the temperature can be kept within a certain temperature range all the time in the washing process, and constant-temperature washing can be realized.
The structural shape of the heating member 30 is not limited as long as heating can be achieved.
It should be noted that, on one hand, the water level in the water storage cavity 101 needs to ensure that water can submerge the heating element 30, so as to prevent the heating element 30 from being burned; on the other hand, it is necessary to ensure that the inner cartridge 20 is able to contact water.
A second aspect of an embodiment of the present application provides a control method of a laundry treating apparatus, referring to fig. 4, including the steps of:
s1: injecting water into the inner cylinder 20, wherein water in the inner cylinder 20 can enter the water storage cavity 101 through the overflow holes 20a on the inner cylinder 20; in the laundry treatment apparatus, during the process of washing laundry, the washing water is contained in the inner tub 20, and the inner tub 20 may also be referred to as a non-porous inner tub 20, so that the problem of easy dirt collection caused by the containing of the washing water by the outer tub 10 in the prior art can be avoided. Before the water level in the inner cylinder 20 does not reach the preset water level, the water level in the inner cylinder 20 is continuously increased, and after the water level in the inner cylinder 20 reaches the preset water level, the excessive water overflows through the overflow hole 20a.
S2: whether the water level in the inner cylinder 20 reaches the preset water level is judged according to the water level in the water storage chamber 101. That is, in the water filling stage, it can be indirectly judged whether the water level in the inner tube 20 reaches the preset water level according to the water level in the water storage chamber 101.
Specifically, before water injection, the inner cylinder 20 can detect the current water level in the water storage cavity 101 by the detection device 50; after the water injection is started, before the water level in the inner barrel 20 does not reach the preset water level, the detection result of the characterization water level sent by the detection device 50 is the same; when the water level in the inner cylinder 20 reaches the preset water level, the excessive water overflows into the water storage cavity 101 through the overflow hole 20a, so that the water level in the water storage cavity 101 changes, and the detection device 50 sends out a detection result corresponding to the changed water level. In the water injection stage of the inner tube 20, no other waterway enters the outer tube 10, so that it can be known that water enters the water storage cavity 101 from the overflow hole 20a according to the comparison of the front and rear detection results, and the water level in the inner tube 20 can be judged to reach the preset water level. It will be appreciated that if there is no water in the water storage chamber 101 before the inner cartridge 20 is filled, the water level in the water storage chamber 101 is 0.
It can be understood that it may be manually determined that the water level in the inner cylinder 20 reaches the preset water level according to the detection result, for example, the detection result such as the output frequency of the detection device 50 is displayed for determining according to the frequency comparison; the laundry machine may be automatically judged by the control device 60 of the laundry machine.
Further, the step S1 specifically includes:
injecting water into the inner cylinder 20 until the water level in the water storage cavity 101 reaches the first water level, and stopping injecting water, wherein at the moment, it can be judged that the water level in the inner cylinder 20 reaches the preset water level;
after stopping water injection for a preset time, water is injected into the inner cylinder 20 again until the water level in the water storage cavity 101 reaches a second water level, and the second water level is higher than the first water level, so that it can be judged that the water level in the inner cylinder 20 reaches the preset water level.
After the clothes are soaked in the inner drum 20 for a period of time or after the inner drum 20 rotates for a plurality of circles, part of the clothes can be slowly absorbed into water, so that the water level in the inner drum 20 can be up to the standard even if the water is not discharged, that is, the water level is lower than the preset water level due to the fact that part of the clothes is slowly absorbed into water. Therefore, after stopping the water injection for a preset time, water needs to be injected again into the inner tub 20 to ensure that the water level reaches the standard in the subsequent normal washing process.
It should be noted that the values of the first water level and the second water level are not fixed, but may be variable.
In one embodiment, the control method further includes:
controlling water within the outer tub 10 to contact a portion of the outer surface of the inner tub 20;
the control heating element 30 heats the water in the outer tub 10, heats the inner tub 20 through the water in the outer tub 10, and heats the water in the inner tub 20 through the inner tub 20.
In the rotation process of the inner cylinder 20, different parts of the inner cylinder 20 are in contact with hot water in the outer cylinder 10 in turn, namely, the inner cylinder 20 and the hot water have relative motion, so that the heat transfer efficiency can be accelerated, and the water in the inner cylinder 20 can be heated more uniformly; the water injection process of the inner barrel 20 is not affected in the heating process, the inner barrel 20 can be filled with water according to the normal speed and flow, the inner barrel 20 exchanges heat with water in the outer barrel 10 in a larger area in the subsequent washing process, the washing is carried out while heating, the washing time is not affected in the heating process, the temperature is convenient to adjust according to actual needs, the constant-temperature washing can be realized in a certain temperature range all the time in the washing process.
In one embodiment, before the step of controlling the water in the outer tub 10 to contact with a part of the outer surface of the inner tub 20, the control method includes: it is determined that heating is required. The manner of determining that heating is required may be determined according to a user's selection of heating, for example, a heating function is separately provided on the laundry treating apparatus, the user selects the heating function, or a certain washing mode is a heating washing mode, the system automatically determines that heating is required when the user selects the washing mode, etc. The step of determining that heating is required may be performed before the water is injected into the inner tube 20 or may be performed after the water is injected into the inner tube 20.
In one embodiment, the step of controlling the heating element to heat the water stored in the outer cylinder 10 specifically includes: the water in the outer tub 10 is heated until the water temperature in the outer tub 10 reaches a preset temperature, and the heating is stopped. That is, an upper heating temperature limit is set to prevent overheating.
It will be appreciated that after the heating has ceased, the water within the outer barrel 10 may not be expelled, which is advantageous in maintaining the temperature of the water within the inner barrel 20, avoiding too rapid a drop in the water temperature within the inner barrel 20. In one embodiment, after stopping the heating, the control method further comprises: the water in the outer tub 10 is discharged to reduce the rotational resistance of the inner tub 20 and reduce the power consumption.
There are various methods for controlling the contact between the water in the outer cylinder 10 and the partial outer surface of the inner cylinder 20, as long as the water in the outer cylinder 10 can be ensured to contact with the partial outer surface of the inner cylinder 20, for example, in one embodiment, the water with a predetermined volume is injected into the outer cylinder 10, and the water in the outer cylinder 10 can be ensured to submerge the partial outer surface of the inner cylinder 20 without using other detection means. The embodiment of the application specifically comprises the following steps: the water level in the outer tub 10 is determined to reach the third water level, and the first water level is higher than the second water level described above, that is, it is ensured that water in the outer tub 10 can be brought into contact with a part of the surface of the inner tub 20 as long as the water level in the outer tub 10 is determined to reach the third water level.
Specifically, the water injection and heating process according to an embodiment of the present application will be described below.
In this embodiment, it is determined that heating is required before filling the inner cartridge 20; then water is injected into the inner cylinder 20, specifically, water is continuously injected into the inner cylinder after the water level in the outer cylinder 10 reaches the second water level, so that the water level in the outer cylinder 10 is continuously increased until the water level in the outer cylinder 10 reaches the third water level, that is, water is injected into the outer cylinder 10 through the inner cylinder 20, and thus, a water inlet structure is not required to be additionally arranged in the outer cylinder 10, the structure can be simplified, and the production cost can be reduced. And then controlling the heating element 30 to heat the water in the outer barrel 10, and stopping heating when the water temperature in the outer barrel 10 reaches the preset water temperature.
The various embodiments/implementations provided by the application may be combined with one another without contradiction.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (15)
1. Laundry treatment apparatus, characterized by comprising:
an outer cylinder (10);
the inner cylinder (20) is rotationally arranged in the outer cylinder (10), the inner cylinder (20) can hold water, and an overflow hole (20 a) is formed at a preset water level of the inner cylinder (20);
a water injection assembly (70), the water injection assembly (70) being capable of injecting water into the inner cylinder (20);
a water storage chamber (101), wherein the water storage chamber (101) can store water overflowed from the overflow hole (20 a);
-a detection device (50), the detection device (50) being configured to: the water level in the water storage cavity (101) can be detected, so that whether the water level in the inner cylinder (20) reaches a preset water level or not can be detected in the water injection stage of the inner cylinder (20); the detection device (50) comprises an air chamber (51);
the air chamber (51) is connected to the outer side of the outer cylinder (10), a water passing hole (10 b) communicated with the water storage cavity (101) is formed in the side wall of the outer cylinder (10), and water in the water storage cavity (101) acts on one side of the air chamber (51) through the water passing hole (10 b);
or alternatively, the process may be performed,
the water storage device is characterized in that a water outlet (10 a) communicated with the water storage cavity (101) is formed in the bottom wall of the outer barrel (10), the clothes treatment device comprises a water outlet pipe (31) and a connecting water pipe (53), the water outlet pipe (31) is connected to the water outlet (10 a), the connecting water pipe (53) is connected between the water outlet pipe (31) and the air chamber (51), and in a water outlet stage, the clothes treatment device discharges water out of the clothes treatment device through the water outlet pipe (31).
2. Laundry treatment apparatus according to claim 1, characterized in that it comprises control means (60), said control means (60) being in signal connection with said detection means (50), said control means (60) being configured to: and whether the water level in the inner cylinder (20) reaches a preset water level can be judged according to the detection result of the detection device (50) in the water injection stage of the inner cylinder (20).
3. Laundry treatment apparatus according to claim 2, characterized in that the control device (60) is in signal connection with the water injection assembly (70), the control device (60) being able to control the water injection assembly (70) to stop water injection, in case the control device (60) determines that the water level in the inner drum (20) reaches a preset water level.
4. Laundry treatment apparatus according to claim 1, characterized in that the bottom space within the outer tub (10) is formed as at least part of the water storage chamber (101).
5. Laundry treatment apparatus according to claim 4, characterized in that the overflow aperture (20 a) is located higher than the highest water level allowed by the water storage chamber (101).
6. Laundry treatment apparatus according to claim 4, characterized in that it comprises a heating element (30), said heating element (30) being arranged in said water storage chamber (101), part of the structure of said inner drum (20) extending into said water storage chamber (101), said heating element (30) heating said inner drum (20) by means of water in said water storage chamber (101) and heating water in said inner drum (20) by means of said inner drum (20).
7. Laundry treatment apparatus according to claim 4, characterized in that the detection means (50) comprise a water level sensor (52), the air chamber (51) being connected between the water storage chamber (101) and the water level sensor (52), the water level sensor (52) being capable of emitting different frequency signals depending on the air pressure variation of the air chamber (51).
8. Laundry treatment apparatus according to any one of claims 1-7, characterized in that the inner drum (20) has a rotation axis extending in a horizontal direction, at least one end of the inner drum (20) in the direction of the rotation axis being a closed end provided with the overflow aperture (20 a).
9. A control method of the laundry treating apparatus according to any one of claims 1 to 8, comprising the steps of:
water injected into the inner cylinder (20) enters the water storage cavity (101) through the overflow holes (20 a) on the inner cylinder (20);
and judging whether the water level in the inner cylinder (20) reaches a preset water level or not according to the water level in the water storage cavity (101).
10. The control method according to claim 9, wherein the step of injecting water into the inner cylinder (20) specifically comprises:
injecting water into the inner cylinder (20) until the water level in the water storage cavity (101) reaches a first water level, and stopping injecting water;
after stopping water injection for a preset time, water is injected into the inner cylinder (20) again until the water level in the water storage cavity (101) reaches a second water level, wherein the second water level is higher than the first water level.
11. The control method according to claim 9, characterized in that the control method includes: controlling water in the outer cylinder (10) to be in contact with part of the outer surface of the inner cylinder (20);
the control heating element (30) heats the water in the outer cylinder (10), heats the inner cylinder (20) through the water in the outer cylinder (10), and heats the water in the inner cylinder (20) through the inner cylinder (20).
12. A control method according to claim 11, wherein said controlling water within said outer cylinder (10) to contact a portion of the outer surface of the inner cylinder (20) comprises:
determining that the water level in the outer cylinder (10) reaches a third water level.
13. A control method according to claim 11, characterized in that before said controlling the water in the outer cylinder (10) to come into contact with a part of the outer surface of the inner cylinder (20), the control method comprises:
it is determined that heating is required.
14. A control method according to claim 11, wherein said control heating member heats water stored in the outer tub (10), comprising:
and heating the water in the outer cylinder (10) until the water temperature in the outer cylinder (10) reaches the preset temperature, and stopping heating.
15. The control method according to claim 14, wherein after the heating stop step, the control method further comprises:
and discharging the water in the outer cylinder (10).
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| CN114808346B (en) * | 2021-01-22 | 2023-11-03 | 无锡小天鹅电器有限公司 | Laundry treating apparatus, control method thereof, and storage medium |
| CN114808364B (en) * | 2021-01-22 | 2023-11-24 | 无锡小天鹅电器有限公司 | Laundry treating apparatus, control method thereof, and storage medium |
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