CN112095300A - Laundry treating apparatus and control method thereof - Google Patents
Laundry treating apparatus and control method thereof Download PDFInfo
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- CN112095300A CN112095300A CN201910472194.8A CN201910472194A CN112095300A CN 112095300 A CN112095300 A CN 112095300A CN 201910472194 A CN201910472194 A CN 201910472194A CN 112095300 A CN112095300 A CN 112095300A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 496
- 238000003860 storage Methods 0.000 claims abstract description 91
- 238000002347 injection Methods 0.000 claims abstract description 47
- 239000007924 injection Substances 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims description 59
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 description 32
- 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
- 238000004140 cleaning Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 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
- 238000003756 stirring Methods 0.000 description 1
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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
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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
- D06F39/083—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 barrel, an inner barrel, a water injection assembly, a water storage cavity and a detection device; the inner cylinder is rotationally arranged in the outer cylinder and can contain water, and an overflow hole is formed in the position of a 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 overflowing 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 barrel reaches a preset water level or not can be detected in the water injection stage of the inner barrel. The clothes treatment equipment of this application embodiment, in the water injection stage, whether overflow to the water storage chamber through whether there is water to judge the water level in the inner tube from the overflow hole and reach preset water level, detection mode is simple, does not influence the water injection speed of inner tube, can not influence the water injection time of inner tube.
Description
Technical Field
The application relates to the technical field of clothes cleaning, in particular to a clothes treatment device and a control method thereof.
Background
The inner barrel is used for containing clothes, the outer barrel is used for containing water, a large number of water holes are formed in the inner barrel, the inner barrel and the outer barrel are communicated through the water holes, water in the outer barrel enters the inner barrel, water is injected into the outer barrel and drained through the outer barrel, dirt is easily stored between the inner barrel and the outer barrel of the washing machine of the type, bacteria are bred, and the washing machine is not easy to clean. Therefore, the related art shows a washing machine with a single-drum washing, which is different from the existing washing mode, the inner drum is a non-porous inner drum and is isolated from the outer drum, and the single drum is not only used for containing clothes, beating or stirring the clothes, but also used for containing water. The water level detection of the single-drum washing machine becomes a difficult technology to overcome urgently
In the related art, the water level detection method includes: the water inlet pipe is provided with a constant volume box, water is injected into the constant volume box firstly, water inflow is stopped after the constant volume box is full of water, then the water in the constant volume box is released into the inner cylinder, and the water is re-introduced into the constant volume box after the water in the constant volume box is released. The mode can influence the water injection and speed of the inner barrel and prolong the water injection time of the inner barrel.
Disclosure of Invention
In view of the above, embodiments of the present application are directed to a laundry treating apparatus and a control method thereof, which facilitate detecting whether an inner tub reaches a preset water level.
In order to achieve the above object, an aspect of the embodiments of the present application provides a clothes treating apparatus, including an outer cylinder, an inner cylinder, a water injection assembly, a water storage cavity, and a detecting device; the inner cylinder is rotationally arranged in the outer cylinder and can contain water, and an overflow hole is formed in the position of a preset water level of the inner cylinder; the water injection assembly can inject water into the inner barrel; the water storage cavity can store water overflowing 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 barrel reaches a preset water level or not can be detected in the water injection stage of the inner barrel.
Further, the laundry treating apparatus comprises a control device in signal connection with the detecting device, the control device being configured to: whether the water level in the inner barrel reaches the preset water level or not can be judged according to the detection result of the detection device in the water injection stage of the inner barrel.
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 barrel reaches the preset water level.
Further, the bottom space in the outer barrel is formed into at least part of the water storage cavity.
Further, the position of the overflow hole is higher than the highest water level allowed by the water storage cavity.
Further, the clothing treatment facility includes the heating member, the heating member set up in the water storage intracavity, the partial structure of inner tube stretches into in the water storage chamber, the heating member passes through the water heating in the water storage intracavity the inner tube, and through the inner tube heating water in the inner tube.
Further, detection device includes air chamber and level sensor, the air chamber is connected in the water storage chamber with between the level sensor, the level sensor can send different frequency signal according to the atmospheric pressure change of air chamber.
Further, a drain port is formed in the bottom wall of the outer tub, 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, be formed with on the lateral wall of urceolus with the water hole of crossing of water storage chamber intercommunication, the air chamber connect in the outside of urceolus, the water of water storage intracavity is through the water hole acts on one side of air chamber.
Further, the inner cylinder is provided with a rotating axis, the rotating axis extends along the horizontal direction, at least one end of the inner cylinder along the rotating axis 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 treating apparatus, including the steps of:
injecting water into the inner cylinder, wherein the water in the inner cylinder can enter the water storage cavity through an overflow hole in the inner cylinder;
and judging whether the water level in the inner barrel 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 barrel until the water level in the water storage cavity reaches a first water level, and stopping injecting water;
and after stopping injecting water for a preset time, injecting water into the inner barrel 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 barrel to be capable of contacting with part of the outer surface of the inner barrel;
and controlling a heating element to heat the water in the outer barrel, heating the inner barrel through the water in the outer barrel, and heating the water in the inner barrel through the inner barrel.
Further, the control water in the outer cylinder can contact with part of the outer surface of the inner cylinder, and the control water tank comprises: determining that the water level in the outer tub reaches a third water level.
Further, before the control that the water in the outer cylinder can contact with part of the outer surface of the inner cylinder, the control method comprises the following steps: it is determined that heating is required.
Further, the control heating member heats water stored in the outer tub, and includes: and heating the water in the outer barrel until the water temperature in the outer barrel reaches a preset temperature, and stopping heating.
Further, after the step of stopping heating, the control method further includes: and discharging the water in the outer cylinder.
The clothes treatment equipment of this application embodiment, in the water injection stage, whether overflow to the water storage chamber through whether there is water to judge the water level in the inner tube from the overflow hole and reach preset water level, detection mode is simple, does not influence the water injection process and the water injection speed of inner tube, can not influence the water injection time of inner tube.
Drawings
FIG. 1 is a partial structural view of a clothes treating apparatus according to an embodiment of the present application, in which an arrow direction indicates a water flow direction for filling water into an inner tub, and L indicates a water level in an outer tub;
FIG. 2 is a partial structural view of a laundry treating apparatus according to another embodiment of the present application, in which an arrow direction indicates a water flow direction for filling water into an inner tub, L indicates a water level in an outer tub, and overflow holes are not shown;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
fig. 4 is a flowchart of a control method according to an embodiment of the present application.
Description of the reference numerals
An outer cylinder 10; a water storage chamber 101; a drain opening 10 a; water passing holes 10 b; an inner barrel 20; overflow holes 20 a; a heating member 30; a drain pipe 31; a water inlet passage 40 a; the first support shaft 41; the second support shaft 42; a detection device 50; an air chamber 51; a water level sensor 52; a connecting water pipe 53; an air 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 present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
In the description of the present application, the "up," "down," "top," "bottom" orientations or positional relationships are based on the orientations or positional relationships illustrated in FIG. 1, it being understood that these directional terms are merely used to facilitate the description of the present application and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
The embodiment of the present application provides a clothes treating apparatus, please refer to fig. 1 and 2, including an outer cylinder 10, an inner cylinder 20, a water injection assembly 70, a water storage chamber 101 and a detecting device 50; the inner cylinder 20 is rotatably arranged in the outer cylinder 10, the inner cylinder 20 can contain water, that is, in the process of washing clothes, the clothes treatment equipment contains the washing water in the inner cylinder 20, the inner cylinder 20 can also be called as a non-porous inner cylinder 20, and the problem that in the prior art, dirt is easily stored and accumulated because the outer cylinder 10 contains the washing water can be avoided; referring to fig. 3, an overflow hole 20a is formed 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, the excess water can overflow through the overflow hole 20 a; the water storage cavity 101 can store water overflowing 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 20 a; the water injection assembly 70 can inject water into the inner tub 20.
The detection device 50 is configured to: the water level in the water storage chamber 101 can be detected to detect whether the water level in the inner tub 20 reaches a preset level at the stage of water injection of the inner tub 20.
In the clothes treatment equipment of the embodiment of the application, before the inner drum 20 is filled with water, the detection device 50 sends out a detection result corresponding to the current water level in the water storage cavity 101; after the water injection assembly 70 starts injecting water, before the water level in the inner barrel 20 does not reach the preset water level, the detection results sent by the detection device 50 for representing the water level in the water storage cavity 101 are the same; after the water level in the inner tube 20 reaches the preset water level, redundant water overflows to 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 the comparison of the front detection result and the rear detection result, water can be known to enter the water storage cavity 101 from the overflow hole 20a, so that the water level in the inner tube 20 can be judged to reach the preset water level.
It can be understood that, before the inner tube 20 is filled with water, if there is no water in the water storage chamber 101, the water level in the water storage chamber 101 is considered to be 0.
The clothes treatment equipment of this application embodiment, in the water injection stage, whether water level in the inner tube 20 reaches and predetermines the water level through whether having water to spill over to the water storage chamber 101 from overflow hole 20a, and the detection mode is simple, does not influence the water injection process and the water injection speed of inner tube 20, can not influence the water injection time of inner tube 20.
It can be understood that the water level in the inner barrel 20 can be artificially determined to reach 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 clothes treatment equipment automatically judges.
In one embodiment of the present application, the clothes treating apparatus includes a control device 60, 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 filling stage of the inner drum 20, the judgment is automatically carried out by the control device 60, 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 injecting water under the condition that the control device 60 determines that the water level in the inner barrel 20 reaches the preset water level. Thus, 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 is further improved.
The inner cylinder 20 has an axis of rotation, that is, the inner cylinder 20 rotates on its axis of rotation. The rotation axis may extend in a horizontal direction, may extend in a vertical direction, and may extend in an oblique direction between the horizontal direction and the vertical direction.
In the embodiment of the present application, please refer to fig. 1 and 2, the rotation axis extends along the horizontal direction, at least one end of the inner cylinder 20 along the rotation axial direction is a closed end, and the closed end is provided with an overflow hole 20 a. Because the rotation axis extends along the horizontal direction, correspondingly, the structures such as the motor and the like used for driving the inner drum 20 to rotate can also be positioned in the axial direction of the inner drum 20, the structures such as the motor and the like can not be contacted with the water overflowing from the overflow hole 20a, and the structures such as the motor and the like 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, the 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; a first clothes taking and placing opening (not shown) is formed at the top of the outer drum 10, a second clothes taking and placing opening (not shown) and a closing door (not shown) are formed in the circumferential direction of the inner drum 20, the second clothes taking and placing opening is matched with the first clothes taking and placing opening, and the closing door can selectively close the second clothes taking and placing opening and avoid the second clothes taking and placing opening. When the clothes are put in, the closed door avoids the second clothes taking and placing opening, the second clothes taking and placing opening is opened, the first clothes taking and placing opening is matched with the second clothes taking and placing opening, namely, the second clothes taking and placing opening is aligned with the first clothes taking and placing opening, and the clothes can be placed in the inner barrel 20 through the first clothes taking and placing opening and the second clothes taking and placing opening in sequence. After the clothes are put in, the closed door is closed. It can be understood that the closing door seals the circumference of the second laundry taking and placing opening 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 drum 20 in the rotation axis direction is supported on the outer drum 10 by the first support shaft 41, and the other end of the inner drum 20 in the rotation axis direction is supported on the outer drum 10 by the second support shaft 42. The opposite ends of the inner cylinder 20 along the rotation axis are supported on the outer cylinder 10, so that the stress condition of the inner cylinder 20 can be improved, and the 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 tube 20 is not limited. For example, 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 to the water injection assembly 70. Specifically, in one embodiment, the water filling assembly 70 includes a water inlet pipe 71 and water valves 72, 71, wherein the water inlet pipe 71 is connected to the water valve 72 and the water inlet passage 40a, such that water can be filled into the inner cartridge 20. In another embodiment, referring to fig. 3, water is injected from the closed end near the rotation axis.
The control device 60 may be a control main board of the laundry treating apparatus in one embodiment.
The detection device 50 may be any structure capable of detecting a water level change, for example, the detection device 50 may be a pressure sensor or a liquid level sensor.
In the embodiment of the application, a pressure sensor is adopted for detection. Specifically, the detecting 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 emit a frequency signal according to the air pressure change of the air chamber 51, and 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 communicates with the water level sensor 52 through the air pipe 54, the water pressure in the water storage chamber 101 transmits the pressure to the water level sensor 52 through the air in the air chamber 51, the water level sensor 52 can convert the pressure into a corresponding frequency, and the control device 60 performs determination according to the frequency signal. For example, when there is no water in the water storage chamber 101, the frequency of the water level sensor 52 is f1, the water in the inner cylinder 20 enters the water storage chamber 101 from the overflow hole 20a, the pressure of the air chamber 51 changes, the frequency of the water level sensor 52 is f2, and the controller 60 detects that the frequency changes from f1 to f2, and thus, it is known that water enters the water storage chamber 101. In the water injection stage, no other water path enters the water storage cavity 101, so that the water entering the water storage cavity 101 can come from the water overflowing from the inner barrel 20, and the water level in the inner barrel 20 is judged to reach the preset water level. Because the water pressure in the water storage cavity 101 is collected by the air chamber 51, the installation position of the water level sensor 52 is not limited, the water level sensor can be installed outside the outer cylinder 10, the space between the inner cylinder 20 and the outer cylinder 10 is not occupied, the gap between the inner cylinder 20 and the outer cylinder 10 can be small, and the structure of the clothes treatment equipment is compact.
The air chamber 51 may be provided in the outer cylinder 10 or may be provided inside the outer cylinder 10.
In one embodiment, the bottom space inside the outer tub 10 is formed as at least a part of the water storage cavity 101, the bottom of the outer tub 10 is used for storing water, and the water overflowing from the overflow hole 20a can naturally flow into the bottom of the outer tub 10, so that the structure of the outer tub 10 can be fully utilized without additionally providing 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 tub 10, or the bottom space of the outer tub 10 and other spaces may jointly form the water storage cavity 101.
In order to prevent the water in the water storage chamber 101 from flowing backward into the inner cylinder 20, the position of the overflow hole 20a is higher than the maximum allowable water level of the water storage chamber 101.
In one embodiment, referring to fig. 2, the entire water storage cavity 101 is located at the bottom of the outer tub 10, a water through hole 10b communicated with the water storage cavity 101 is formed on the side wall of the outer tub 10, the air chamber 51 is connected to the outside of the outer tub 10, and water in the water storage cavity 101 acts on one side of the air chamber 51 through the water through hole 10 b. In this way, integrating the air chamber 51 on the tub 10 enables the laundry treating apparatus to be compact.
In another embodiment, referring to fig. 1, a water outlet 10a communicating with the water storage cavity 101 is formed on the bottom wall of the outer tub 10, the clothes treating apparatus includes a water outlet pipe 31 and a connecting water pipe 53, the water outlet pipe 31 is connected to the water outlet 10a, and the connecting water pipe 53 is connected between the water outlet pipe 31 and the air chamber 51, that is, the water in the water storage cavity 101 sequentially passes through the water outlet 10a, the water outlet pipe 31 and the connecting water pipe 53 and then acts on one side of the air chamber 51, in this embodiment, the bottom space of the outer tub 10 and the space in the water outlet pipe 31 together form the water storage cavity 101. The water discharge pipe 31 can be used for multiple purposes, and the outlet of the water discharge pipe 31 is closed in the water filling stage; in the draining stage, the laundry treating apparatus may drain water out of the laundry treating apparatus through the drain pipe 31. In this embodiment, the air chamber 51 is communicated with the drain pipe 31, and the conventional outer cylinder 10 may be used without opening the side wall of the outer cylinder 10.
In one embodiment, referring to fig. 1 and 2, the clothes treating apparatus includes a heating element 30, the heating element 30 is disposed in a water storage cavity 101, a part 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 heating washing is needed, 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 barrel 20, the temperature of the inner barrel 20 rises, and the inner barrel 20 further heats the washing water in the inner barrel 20, so that the washing water in the inner barrel 20 can be indirectly heated.
The clothes treatment equipment of the embodiment can realize the heating of the washing water only by arranging the heating element 30 between the outer cylinder 10 and the inner cylinder 20, has simple structure and is easy to realize; the water in the water storage cavity 101 and the washing water in the inner drum 20 are separated, and the water in the water storage cavity 101 cannot pollute the washing water in the inner drum 20, so that the clothes are washed more hygienically; in the rotating process of the inner cylinder 20, different parts of the inner cylinder 20 are contacted with hot water in the water storage cavity 101 in turn, so that the heat transfer efficiency is accelerated, and the water in the inner cylinder 20 can be heated more uniformly; the water injection process of the inner cylinder 20 is not influenced in the heating process of the water in the water storage cavity 101, and the inner cylinder 20 can feed water at normal speed and flow; in the subsequent washing process, the inner barrel 20 exchanges heat with water in the water storage cavity 101 in a large area, washing and heating are carried out simultaneously, the washing time is not influenced in the heating process, the temperature can be conveniently adjusted according to actual requirements, the temperature can be always kept in a certain temperature range 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 dried; on the other hand, it is necessary to ensure that the inner cartridge 20 is accessible to water.
A second aspect of the embodiments 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 the water in the inner cylinder 20 can enter the water storage cavity 101 through an overflow hole 20a on the inner cylinder 20; in the process of washing clothes, the clothes treating apparatus contains washing water in the inner drum 20, and the inner drum 20 can also be called as a non-porous inner drum 20, so that the problem that dirt is easily stored and taken away due to the fact that the outer drum 10 contains the washing water 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 continuously rises, and after the water level in the inner cylinder 20 reaches the preset water level, the excessive water overflows through the overflow hole 20 a.
S2: whether the water level in the inner tub 20 reaches a preset water level is judged according to the water level in the water storage chamber 101. That is, in the water filling stage, whether the water level inside the inner tub 20 reaches the preset water level can be indirectly judged according to the water level in the water storage chamber 101.
Specifically, before the inner barrel 20 is filled with water, the current water level in the water storage cavity 101 can be detected 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 results of the detection device 50, which are used for representing the water level, are the same; after 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, resulting in the change of the water level in the water storage cavity 101, and the detection device 50 sends out a detection result corresponding to the changed water level. At the stage of filling water into the inner cylinder 20, no other water path enters the outer cylinder 10, so that the comparison of the front and rear detection results can be used to know that water enters the water storage cavity 101 from the overflow hole 20a, and thus, the water level in the inner cylinder 20 can be judged to reach the preset water level. It can be understood that, before the inner tube 20 is filled with water, if there is no water in the water storage chamber 101, the water level in the water storage chamber 101 is 0 at this time.
It can be understood that the water level in the inner barrel 20 can be artificially determined to reach 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; it may be the clothes treating apparatus automatically judging with the control device 60 by the clothes treating apparatus.
Further, step S1 specifically includes:
injecting water into the inner barrel 20 until the water level in the water storage cavity 101 reaches a first water level, and stopping injecting water, wherein the water level in the inner barrel 20 can be judged to reach a preset water level;
after the water injection is stopped for the preset time, water is injected into the inner barrel 20 again until the water level in the water storage cavity 101 reaches the second water level, the second water level is higher than the first water level, and at the moment, the water level in the inner barrel 20 can be judged to reach the preset water level.
After the laundry is soaked in the drum 20 for a period of time or rotates several times along with the drum 20, part of the laundry may slowly "absorb water", so that the water level in the drum 20 does not reach the standard even if the water level is not drained, that is, the water level is lower than the preset water level because part of the laundry slowly "absorbs water". Therefore, after stopping the water injection for a preset time, the water injection into the inner tub 20 needs to be performed again 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 comprises:
the water in the outer cylinder 10 can be controlled to contact with part of the outer surface of the inner cylinder 20;
the heating member 30 is controlled to heat the water in the outer tub 10, the inner tub 20 through the water in the outer tub 10, and the water in the inner tub 20 through the inner tub 20.
In the rotating process of the inner cylinder 20, different parts of the inner cylinder 20 are contacted 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 heating process does not influence the water injection process of the inner barrel 20, the inner barrel 20 can feed water according to normal speed and flow, in the subsequent washing process, the inner barrel 20 exchanges heat with the water in the outer barrel 10 in a large area, the heating is carried out while washing, the heating process does not influence the washing time, the temperature is conveniently adjusted according to actual needs, the temperature can be always kept in a certain temperature range in the washing process, and constant-temperature washing can be realized.
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 heating selected by a user, for example, a heating function is separately provided on the laundry treatment apparatus and selected by the user, or a certain washing mode is a heating washing mode, and the system automatically determines that heating is required when the user selects the washing mode, and the like. It should be noted that the step of determining that heating is required may be performed before the inner tube 20 is filled with water, or may be performed after the inner tube 20 is filled with water.
In an embodiment, the step of controlling the heating element to heat the water stored in the outer tub 10 includes: and heating the water in the outer cylinder 10 until the water temperature in the outer cylinder 10 reaches a preset temperature, and stopping heating. That is, an upper heating temperature limit is set to prevent overheating.
It will be appreciated that the water in the outer tub 10 may not be drained after the heating is stopped, which is advantageous for maintaining the temperature of the water in the inner tub 20 and avoiding the water temperature in the inner tub 20 from dropping too quickly. In one embodiment, after stopping the heating, the control method further includes: the water in the outer tub 10 is discharged to reduce the rotational resistance of the inner tub 20, reducing power consumption.
There are various methods for controlling the step of controlling the water in the outer cylinder 10 to contact with part of the outer surface of the inner cylinder 20, as long as the step of controlling the water in the outer cylinder 10 to contact with part of the outer surface of the inner cylinder 20 can be ensured, 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 part of the outer surface of the inner cylinder 20 without other detection means. In the embodiment of the present application, the method specifically includes: it is determined that the water level in the outer tub 10 reaches the third water level, and the first water level is higher than the second water level, that is, it is ensured that the water in the outer tub 10 can 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 in the embodiment of the present application will be described below.
In the present embodiment, it is determined that heating is required before water is injected into the inner tube 20; and then, injecting water into the inner tub 20, specifically, after the water level in the outer tub 10 reaches the second water level, continuously injecting water into the inner tub so that the water level in the outer tub 10 continuously rises until the water level in the outer tub 10 reaches the third water level, that is, injecting water into the outer tub 10 through the inner tub 20, so that it is not necessary to additionally provide a water inlet structure in the outer tub 10, which can simplify the structure and reduce the production cost. And then controlling the heating element 30 to heat the water in the outer cylinder 10, and stopping heating when the water temperature in the outer cylinder 10 reaches the preset water temperature.
The various embodiments/implementations provided herein may be combined with each other without contradiction.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (17)
1. Laundry treatment apparatus, characterized by comprising:
an outer cylinder (10);
the inner cylinder (20) is rotatably arranged in the outer cylinder (10), the inner cylinder (20) can contain water, and an overflow hole (20a) is formed in the position of a preset water level of the inner cylinder (20);
a water injection assembly (70), wherein the water injection assembly (70) can inject water into the inner barrel (20);
a water storage chamber (101), wherein the water storage chamber (101) can store water overflowing 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 barrel (20) reaches a preset water level or not can be detected in the water injection stage of the inner barrel (20).
2. Laundry treatment apparatus according to claim 1, characterized in that it comprises a control device (60), said control device (60) being in signal connection with said detection device (50), said control device (60) being configured to: whether the water level in the inner barrel (20) reaches a preset water level or not can be judged according to the detection result of the detection device (50) in the water injection stage of the inner barrel (20).
3. The laundry treating apparatus according to claim 2, wherein the control device (60) is in signal connection with the water filling assembly (70), and the control device (60) is capable of controlling the water filling assembly (70) to stop filling water under the condition that the control device (60) judges that the water level in the drum (20) reaches a preset water level.
4. The laundry treating apparatus according to claim 1, characterized in that a bottom space inside the tub (10) is formed as at least a part of the water storage chamber (101).
5. The laundry treating apparatus according to claim 4, wherein the overflow hole (20a) is located at a position higher than a highest water level allowed by the water storage chamber (101).
6. The laundry processing apparatus according to claim 4, characterized in that the laundry processing 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) by water in the water storage cavity (101) and heats water in the inner drum (20) by the inner drum (20).
7. The laundry treating apparatus according to claim 4, wherein the detecting device (50) includes an air chamber (51) 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 emit different frequency signals according to the air pressure change of the air chamber (51).
8. The laundry treating apparatus according to claim 7, wherein a drain opening (10a) is formed at a bottom wall of the tub (10), the laundry treating apparatus includes a drain pipe (31) and a connection water pipe (53), the drain pipe (31) is connected at the drain opening (10a), and the connection water pipe (53) is connected between the drain pipe (31) and the air chamber (51).
9. The laundry treating apparatus according to claim 7, wherein a water through hole (10b) communicating with the water storage chamber (101) is formed on a side wall of the outer tub (10), the air chamber (51) is connected to an outside of the outer tub (10), and water in the water storage chamber (101) acts on one side of the air chamber (51) through the water through hole (10 b).
10. The laundry treatment apparatus according to any one of claims 1-9, characterized in that the inner drum (20) has an axis of rotation which extends in a horizontal direction, at least one end of the inner drum (20) in the direction of the axis of rotation being a closed end, which is provided with the overflow aperture (20 a).
11. A control method of a laundry treating apparatus according to any one of claims 1-10, comprising the steps of:
injecting water into the inner cylinder (20) until the water in the inner cylinder (20) enters the water storage cavity (101) through the overflow hole (20a) on the inner cylinder (20);
and judging whether the water level in the inner barrel (20) reaches a preset water level or not according to the water level in the water storage cavity (101).
12. The control method according to claim 11, wherein the step of injecting water into the inner cylinder (20) comprises:
injecting water into the inner barrel (20) until the water level in the water storage cavity (101) reaches a first water level, and stopping injecting water;
and after the water injection is stopped for a preset time, injecting water into the inner barrel (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.
13. The control method according to claim 11, characterized by comprising:
controlling the water in the outer cylinder (10) to be capable of contacting with part of the outer surface of the inner cylinder (20);
controlling a heating element (30) to heat water in the outer cylinder (10), heating the inner cylinder (20) through the water in the outer cylinder (10), and heating the water in the inner cylinder (20) through the inner cylinder (20).
14. The method as claimed in claim 13, wherein the controlling the water in the outer tub (10) to be in contact with a part of the outer surface of the inner tub (20) comprises:
determining that the water level in the outer tub (10) reaches a third water level.
15. The control method according to claim 13, wherein before controlling the water in the tub (10) to be in contact with a part of the outer surface of the tub (20), the control method comprises:
it is determined that heating is required.
16. The control method according to claim 13, wherein the controlling the heating member to heat the water accumulated in the outer tub (10) comprises:
and heating the water in the outer cylinder (10) until the water temperature in the outer cylinder (10) reaches a preset temperature, and stopping heating.
17. The control method according to claim 16, wherein after the step of stopping heating, the control method further comprises:
discharging the water in the outer cylinder (10).
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| CN112095300B (en) | 2023-11-03 |
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