CN115608067B - Water film breaking mechanism, control method and clothes treatment device - Google Patents
Water film breaking mechanism, control method and clothes treatment device Download PDFInfo
- Publication number
- CN115608067B CN115608067B CN202211411894.4A CN202211411894A CN115608067B CN 115608067 B CN115608067 B CN 115608067B CN 202211411894 A CN202211411894 A CN 202211411894A CN 115608067 B CN115608067 B CN 115608067B
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- water
- filter screen
- water absorbing
- breaking mechanism
- air duct
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 315
- 230000007246 mechanism Effects 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000011358 absorbing material Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 44
- 238000001035 drying Methods 0.000 claims description 19
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 7
- 230000009471 action Effects 0.000 abstract description 21
- 230000005484 gravity Effects 0.000 abstract description 7
- 230000004888 barrier function Effects 0.000 abstract description 5
- 230000002745 absorbent Effects 0.000 abstract 1
- 239000002250 absorbent Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 20
- 238000011010 flushing procedure Methods 0.000 description 7
- 238000009423 ventilation Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/79—Regeneration of the filtering material or filter elements inside the filter by liquid process
Abstract
The invention provides a water film breaking mechanism, a control method and a clothes treatment device, wherein a filter screen is arranged in an air duct or at the end part of the air duct, and the water film breaking mechanism is arranged close to the filter screen; the water film breaking mechanism comprises a water absorbing piece, wherein the water absorbing piece is made of a water absorbing material and is provided with a water absorbing end; the water absorbing piece can move along the direction close to or far from the filter screen, the water absorbing piece is provided with a first working position and a second working position, when the water absorbing piece is positioned at the first working position, the water absorbing end is contacted with the filter screen, and the water film on the filter screen can be broken by the water absorbing end; under the capillary action of the water absorbing piece and the gravity action of the water film, the water film can be quickly gathered towards the water absorbing end, so that the water film is broken, the flow resistance of the air flow is reduced, and the continuity and stability of the air flow are ensured; when the water absorbing piece is positioned at the second working position, the water absorbing end is separated from the filter screen, so that the water at the water absorbing end can be evaporated through the air flow in the air duct, and the water absorbing piece can be reused; the absorbent member is then positioned within the closed water barrier.
Description
Technical Field
The invention belongs to the technical field of cleaning of filter screens, and particularly relates to a water film breaking mechanism, a control method and a clothes treatment device.
Background
After the ventilation equipment is used for a long time, wire scraps, fuzzes and the like are attached to the filter screen in the air duct, so that the ventilation quantity of the air duct is affected; in the prior art, a spray mode is adopted to wash a filter screen, and thread scraps and burrs on the filter screen drop under the spray effect and are discharged along with water flow; after the flushing is finished, a layer of water film which is difficult to break in a short time is formed on the filter screen, so that the ventilation area of the air duct is reduced.
Disclosure of Invention
In view of the above, the invention provides a water film breaking mechanism, a control method and a clothes treatment device, so as to solve the problems that a water film on a filter screen is difficult to break, the water film breaking mechanism is complex, the efficiency is low and the like in the prior art.
The invention provides a water film breaking mechanism which is used for breaking a water film on a filter screen; the filter screen is arranged in the air duct or at the end part of the air duct; the water film breaking mechanism is arranged close to the filter screen; the water film breaking mechanism comprises a water absorbing piece, wherein the water absorbing piece is made of a water absorbing material and is provided with a water absorbing end;
the water absorbing piece can move along the direction approaching to or separating from the filter screen, and the water absorbing piece is provided with a first working position for enabling the water absorbing end to be in contact with the filter screen; when the water absorbing piece is positioned at the first working position, the water absorbing end can break the water film on the filter screen.
Further optionally, the filter screen is obliquely arranged in the air duct along the flowing direction of the air flow; the filter screen includes a downstream end, the downstream end being downstream of the airflow; the water film breaking mechanism is located at the downstream end.
Further optionally, the water absorbing end is formed with a water absorbing surface; when the water absorbing piece is in the first working position, the water absorbing surface is parallel to the screen surface of the filter screen.
Further optionally, the water absorbing member further comprises a second working position for separating the water absorbing end from the filter screen; when the water absorbing piece is positioned at the second working position, the water at the water absorbing end can be evaporated in an evaporation mode or the water absorbing end is positioned in a water-proof cavity which is not communicated with the air duct.
Further optionally, the water film breaking mechanism further includes:
the water-proof cover is arranged on the inner side wall of the air duct, and the water-proof cavity is formed between the water-proof cover and the inner side wall of the air duct; an opening is formed in the side wall, facing the filter screen, of the water-proof cover;
a water blocking door provided at the opening for opening or closing the opening;
when the opening is in an open state, the water-proof cavity is communicated with the air duct, and the water absorbing piece can move from a first working position to a second working position or from the second working position to the first working position through the opening;
when the opening is in a closed state, the water-proof cavity is not communicated with the air duct, and the water absorbing piece can be closed in the water-proof cavity.
Further optionally, the water film breaking mechanism further comprises a sliding seat, a transmission assembly and a driving motor; the sliding seat is arranged on the inner side wall of the air duct and positioned in the water-proof cavity; the sliding seat is provided with a sliding groove;
the transmission assembly is positioned in the water-proof cavity and comprises a first transmission piece and a second transmission piece, the first transmission piece is slidably matched with the chute, and one end of the first transmission piece is connected with the water absorbing piece; the second transmission piece is in transmission connection with the first transmission piece, and the second transmission piece is in driving connection with the driving motor;
when the driving motor rotates, the second transmission part rotates and enables the first transmission part to slide along the sliding seat, and then the water absorbing part can move between a first working position and a second working position.
The invention also provides a control method of the water film breaking mechanism, which comprises the following steps:
when a water film is formed on the filter screen, the water absorbing end is contacted with the filter screen.
Further optionally, the contacting the water absorbing end with the filter screen includes:
and controlling a water isolation door of the water film breaking mechanism to open an opening, so that the water absorbing piece moves to a first working position until the water absorbing end contacts with the filter screen.
Further optionally, the control method further includes:
when the water absorbing end is contacted with the filter screen, air flow passes through the air duct.
Further optionally, the control method further includes:
and after judging that the water film on the filter screen is broken, separating the water absorbing end from the filter screen.
Further optionally, the determining that the water film on the filter screen is broken includes:
acquiring the temperature T1 of the air inlet end and the temperature T2 of the air outlet end of the air duct in unit time;
calculating an absolute value delta T of the difference between T1 and T2 and comparing the absolute value delta T with a preset temperature T0;
when delta T is more than or equal to T0, indicating that the water film on the filter screen is not broken;
when deltat < T0 and for a first preset period of time, a rupture of the water film on the filter screen is indicated.
Further optionally, the control method further includes:
controlling the water absorbing member to move to the second working position until the water absorbing member is positioned in the water-proof cavity;
enabling air to flow through the air duct to enter the water-proof cavity and keeping the air flow for a second preset time period;
and controlling the water isolation door of the water film breaking mechanism to close the opening.
The invention also provides a clothes treatment device, which comprises the water film breaking mechanism or a control method adopting the water film breaking mechanism;
the clothes treatment device is provided with a drying air duct, and a filter screen is arranged in the drying air duct; the water film breaking mechanism is arranged in the air duct and is close to the filter screen.
Compared with the prior art, the invention has the following main beneficial effects:
(1) The water absorbing piece is made of water absorbing materials, when the water absorbing piece is in the first working position, the water absorbing end is in contact with the filter screen, so that a water film on the filter screen can be effectively broken, the flow resistance of air flow is reduced, the air flow can smoothly pass through the air duct, the continuity and stability of the air flow are ensured, the drying effect is improved, and the problem of reduction of ventilation quantity in the air duct due to the existence of the water film on the filter screen is avoided;
(2) The structure is simple, the occupied space is small, the water film breaking process is simple, the automation degree is high, manual intervention is not needed, and the intelligent and automatic management can be realized; when the water absorbing piece is positioned at the second working position, the water at the water absorbing end can be evaporated through the air flow in the air duct, so that the water absorbing piece can be reused; or the water absorbing member is positioned in the closed water-proof cavity, so that water is prevented from entering the water-proof cavity to disable the water absorbing function of the water absorbing member;
(3) When the water film breaking mechanism is arranged in the drying air duct, after the filter screen is cleaned, the water film is broken by utilizing the capillary action of the water absorbing piece and the gravity action of the water film, and the water film breaking area is gradually increased until the water film is completely broken by the airflow action in the drying air duct; on one hand, the problem that bacteria are easy to breed when the cleaned filter screen is in a wet state can be avoided, and on the other hand, the problem that the drying efficiency is reduced due to a water film can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
Fig. 1, fig. 2 and fig. 3 are schematic structural views of an embodiment of the water film breaking mechanism provided by the invention when the water film breaking mechanism is arranged in an air duct;
FIG. 4 is a schematic flow chart of an embodiment of a control method of a water film breaking mechanism according to the present invention;
in the figure:
11-a water absorbing member; 111-a water absorbing end; 12-a transmission assembly; 13-a drive motor; 14-a water barrier; 15-a water-barrier cover;
21-drying tunnel/tunnel; 22-a filter screen; 23-spray header.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two, but does not exclude the case of at least one.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.
In the existing ventilation equipment, a spray mode is adopted to wash a filter screen, and thread scraps and burrs on the filter screen drop under the spray effect and are discharged along with water flow; after the flushing is finished, a layer of water film which is difficult to break in a short time is formed on the filter screen, so that the ventilation area of the air duct is reduced;
the invention creatively provides a water film breaking mechanism which is used for breaking a water film on a filter screen; the filter screen is arranged in the air duct or at the end part of the air duct; the water film breaking mechanism is arranged close to the filter screen; the water film breaking mechanism comprises a water absorbing piece, the water absorbing piece is made of a water absorbing material, and a water absorbing end is formed on the water absorbing piece; the water absorbing piece can move along the direction approaching to or separating from the filter screen, and is provided with a first working position for enabling the water absorbing end to be in contact with the filter screen; when the water absorbing piece is positioned at the first working position, the water absorbing end can break the water film on the filter screen; under the capillary action of the water absorbing piece and the gravity action of the water film, the water film can be quickly gathered towards the water absorbing end, so that cracking occurs, the flow resistance of air flow is reduced, the air flow can smoothly pass through the air duct, and the continuity and stability of the air flow are ensured.
< Water film breaking mechanism >
As shown in fig. 1, 2 and 3, the present embodiment provides a water film breaking mechanism for breaking a water film on the filter screen 22; the filter screen 22 is arranged in the air duct 21, and the water film breaking mechanism is arranged close to the filter screen 22; the water film breaking mechanism comprises a water absorbing piece 11, wherein the water absorbing piece 11 is made of a water absorbing material, and a water absorbing end is formed on the water absorbing piece 11; because the capillary action of the water absorbing member 11 is mainly adopted to absorb the water film on the filter screen 22, the size of the water absorbing end is smaller than that of the filter screen 22;
the water absorbing member 11 is movable in a direction approaching or separating from the filter screen 22, and the water absorbing member 11 has a first working position in which the water absorbing end is brought into contact with the filter screen 22 and a second working position in which the water absorbing end is separated from the filter screen 22; when a water film is formed on the filter screen 22, the water absorbing piece 11 is positioned at the first working position, and the water absorbing end can break the water film on the filter screen 22;
after the water film on the filter screen 22 is broken, the water absorbing piece 11 is positioned at the second working position, firstly, the water absorbed on the water absorbing end is evaporated in time in an evaporation mode, so that the water absorbing end can be recycled; then the water absorbing end is positioned in a water-proof cavity which is not communicated with the air duct 21, so that the water absorbing piece 11 is positioned in the air duct 21 and absorbs moisture in the air flow for a long time, and the functional failure of the water absorbing piece 11 is avoided; specifically, the air flow is made to flow through the air duct 21, and the moisture adsorbed on the water absorbing member 11 is evaporated in time by the air flow;
according to actual needs, a plurality of water absorbing ends can be arranged on one water absorbing piece 11, and when the water absorbing piece 11 is in the first working position, the water absorbing ends can be contacted with different positions of the filter screen 22, so that the water film is subjected to capillary action in different directions, and the rupture of the water film can be accelerated.
Aiming at the problem that the capillary action of the water absorbing member 11 takes a long time to break the water film, the present embodiment proposes that the filter screen 22 is obliquely arranged in the air duct 21 along the flow direction of the air flow; filter 22 includes a downstream end that is downstream of the airflow; the water film breaking mechanism is positioned at the downstream end;
when the water absorbing member 11 is in the first working position, the water absorbing end is in contact with the filter screen 22, and the water film is subjected to the action of gravity and the capillary action of the water absorbing member 11 at the same time and gathers towards the water absorbing end side, so that the water film is broken.
Aiming at the problem that the contact area between the water absorbing end and the filter screen 22 is small, so that the time required for breaking the water film is long, the embodiment provides that the water absorbing end is provided with a water absorbing surface; when the water absorbing member 11 is in the first working position, the water absorbing surface is parallel to the surface of the filter screen 22; the contact area between the water absorbing end and the filter screen 22 is enlarged, so that more water films are broken under the action of gravity and the capillary action of the water absorbing piece 11.
Further, the water film breaking mechanism further includes:
a water blocking cover 15 provided on an inner side wall of the air duct 21 and having a water blocking chamber formed between the water blocking cover 15 and the inner side wall of the air duct 21; the side wall of the water-blocking cover 15 facing the filter screen 22 is formed with an opening; when the water absorbing piece 11 is in the second working position, the water absorbing piece 11 is positioned in the water-proof cavity;
a water blocking door 14 provided at the opening for opening or closing the opening;
when the opening is in an open state, the water-proof cavity is communicated with the air duct 21, and the water absorbing piece 11 can move from the first working position to the second working position or from the second working position to the first working position through the opening;
when the opening is in a closed state, the water-blocking cavity is not communicated with the air duct 21, and the water absorbing member 11 can be closed in the water-blocking cavity.
Aiming at the problem of unstable movement of the water barrier, the embodiment provides that the water film breaking mechanism further comprises a sliding seat, a transmission assembly 12 and a driving motor 13; the slide seat is arranged on the inner side wall of the air duct 21 and positioned in the water-proof cavity; the sliding seat is provided with a sliding groove;
the transmission assembly 12 is positioned in the water-proof cavity and comprises a first transmission piece and a second transmission piece, the first transmission piece is slidably matched with the chute, and one end of the first transmission piece is connected with the water absorbing piece 11; the second transmission piece is in transmission connection with the first transmission piece, and the second transmission piece is in driving connection with the driving motor 13;
when the driving motor 13 rotates, the second transmission part rotates and enables the first transmission part to slide along the sliding seat, so that the water absorbing part 11 can move between a first working position and a second working position;
specifically, the first transmission part is a rack, and the second transmission part is a gear; or the first transmission part is a worm and the second transmission part is a turbine; the first transmission part is a sliding block, the second transmission part is a crank, and a connecting rod is further connected between the sliding block and the crank.
The water film breaking mechanism has the advantages of simple structure, small occupied space, no influence on the flow of air flow in the air duct 21, simple water film breaking process, high automation degree, no need of manual intervention and contribution to realizing intelligent and automatic management.
< control method >
As shown in fig. 4, this embodiment further provides a control method of the water film breaking mechanism, including:
s1, when a water film is formed on the filter screen 22, enabling the water absorbing end to be in contact with the filter screen 22;
s2, enabling the air flow to pass through the air duct 21;
s3, after the water film on the filter screen 22 is judged to be broken, the water absorbing end is separated from the filter screen 22.
The water film is broken by utilizing the capillary action of the water absorbing piece 11 and the gravity action of the water film, and the water film is gradually increased in breaking area until the water film is completely broken by the air flow action in the air duct 21.
Further, contacting the suction end with the filter mesh 22 includes:
the water barrier 14 of the water film breaking mechanism is controlled to open the opening, so that the water absorbing member 11 moves to the first working position until the water absorbing end contacts with the filter screen 22.
Judging that the water film on the filter screen 22 is broken includes:
s31, acquiring the temperature T1 of the air inlet end and the temperature T2 of the air outlet end of the air duct 21 in unit time;
s32, calculating an absolute value delta T of the difference between T1 and T2 and comparing the absolute value delta T with a preset temperature T0;
s33, when the delta T is more than or equal to T0, indicating that the water film on the filter screen 22 is not broken;
s34, when the delta T is smaller than T0 and the first preset time period is kept, the water film on the filter screen 22 is broken.
Further optionally, the control method further includes:
s4, controlling the water absorbing piece 11 to move to the second working position until the water absorbing piece 11 is positioned in the water-proof cavity;
s5, enabling air flow to enter the water-proof cavity through the air duct 21 and keeping the second preset time period;
s6, controlling a water barrier 14 of the water film breaking mechanism to close the opening.
< clothes treatment device >
The embodiment also provides a clothes treatment device, which comprises the water film breaking mechanism or a control method adopting the water film breaking mechanism;
the clothes treatment device is provided with a drying air duct 21, and a filter screen 22 is arranged in the drying air duct 21; the water film breaking mechanism is arranged in the drying air duct 21 and is close to the filter screen 22.
The clothes treatment device further comprises a flushing spray header 23, a first spray pipe, a second spray pipe and a flushing valve, wherein the water inlet end of the first spray pipe is communicated with a water inlet pipeline of the clothes treatment device, the flushing valve is communicated between the water outlet end of the first spray pipe and the water inlet end of the second spray pipe, and the water outlet end of the second spray pipe is communicated with the spray header 23; the spray header 23 is arranged at the upstream end of the filter screen 22, and a spray opening of the spray header 23 faces the filter screen 22;
the laundry treating apparatus is operated from the drying process to the cleaning of the filter 22 to the breaking of the water film on the filter 22 as follows:
(1) the clothes treatment device runs a drying program and records the accumulated times of running the drying program;
(2) when the accumulated times reach the preset times, the filter screen 22 is required to be cleaned; controlling the flushing valve to be opened, enabling water in the water inlet pipeline to reach the spray header 23 through the first spray pipe, the flushing valve and the second spray pipe, and spraying and cleaning the filter screen 22 by the spray header 23;
(3) after the cleaning is finished, a water film is formed on the filter screen 22; the water-proof door 14 is controlled to be opened, the driving motor 13 is controlled to run, the second transmission piece rotates and enables the first transmission piece to slide along the sliding seat, the water-absorbing piece 11 moves from the second working position to the first working position, the water-absorbing end is contacted with the filter screen 22, and the water film flows towards the water-absorbing end under the action of gravity and capillary action; in the process, the drying fan is kept on, so long as the water film has empty points or even weak parts, the water film is broken under the action of air flow, and the purpose of eliminating the water film is achieved; acquiring the temperature T1 of the air inlet end and the temperature T2 of the air outlet end of the drying air duct 21 in each minute; calculating an absolute value delta T of the difference between T1 and T2 and comparing the absolute value delta T with a preset temperature T0; when DeltaT is more than or equal to T0, the water film on the filter screen 22 is not broken; when DeltaT < T0 and the first preset time period is maintained, the water film on the filter screen 22 is completely broken;
(4) controlling the water absorbing element 11 to move to the second working position until the water absorbing element 11 is positioned in the water-proof cavity; the drying fan is kept on, so that air flows into the water-proof cavity through the drying air duct 21 and the second preset time period is kept, and the moisture absorbed by the water absorbing piece 11 is basically evaporated; the water-proof door 14 is controlled to close the opening, so that the water absorbing piece 11 is isolated from the air flow in the drying air duct 21;
the distance between the first working position and the second working position can be set to be a fixed distance L; in the process of breaking the water film, the drying fan keeps running, when a part of the water film breaks, the broken part can be rapidly increased under the action of air flow, and then the water film is completely broken, so that the speed of breaking the water film is improved.
Preferably, the laundry treating apparatus is a washer-dryer or dryer.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that this disclosure is not limited to the particular arrangements, instrumentalities and methods of implementation described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (13)
1. A water film breaking mechanism for breaking a water film on a filter screen (22); the filter screen (22) is arranged in the air duct (21) or at the end part of the air duct (21); the water film breaking device is characterized in that the water film breaking mechanism is arranged close to the filter screen (22); the water film breaking mechanism comprises a water absorbing piece (11) and a water isolation cover (15), wherein the water absorbing piece (11) is made of a water absorbing material, and a water absorbing end (111) is formed on the water absorbing piece (11); the water-proof cover (15) is arranged on the inner side wall of the air duct (21), and a water-proof cavity is formed between the water-proof cover (15) and the inner side wall of the air duct (21); an opening is formed in the side wall of the water-proof cover (15) facing the filter screen (22), and a water-proof door is arranged at the opening; the water-proof door can open or close the opening to enable the water-proof cavity to be communicated or not communicated with the air duct;
the water absorbing member (11) is movable in a direction approaching or separating from the filter screen (22), and the water absorbing member (11) has a first working position in which the water absorbing end (111) is in contact with the filter screen (22) and a second working position in which the water absorbing end (111) is separated from the filter screen (22); when the water absorbing piece (11) is in the first working position, the water absorbing end (111) can break a water film on the filter screen (22); when the water absorbing piece (11) is in the second working position, the water absorbing end (111) can be positioned in the water isolating cavity.
2. The water film breaking mechanism according to claim 1, characterized in that the filter screen (22) is arranged in the air duct (21) in an inclined manner in the flow direction of the air flow; the filter screen (22) includes a downstream end that is downstream of the airflow; the water film breaking mechanism is located at the downstream end.
3. The water membrane breaking mechanism according to claim 2, characterized in that the water absorbing end (111) is formed with a water absorbing surface; when the water absorbing piece (11) is in the first working position, the water absorbing surface is parallel to the screen surface of the filter screen (22).
4. The water film breaking mechanism according to claim 2, characterized in that the water in the water absorbing end (111) can be evaporated by evaporation when the water absorbing member (11) is in the second working position and the water blocking chamber is not in communication with the air duct (21).
5. The water membrane breaking mechanism according to claim 4, characterized in that the water blocking chamber is in communication with the air duct (21) when the opening is in an open state, the water absorbing member (11) being movable via the opening from a first working position to a second working position or from the second working position to the first working position;
when the opening is in a closed state, the water-proof cavity is not communicated with the air duct (21), and the water absorbing piece (11) can be closed in the water-proof cavity.
6. The water film breaking mechanism according to claim 5, further comprising a slide, a transmission assembly (12) and a drive motor (13); the sliding seat is arranged on the inner side wall of the air duct (21) and positioned in the water-proof cavity; the sliding seat is provided with a sliding groove;
the transmission assembly (12) is positioned in the water-proof cavity and comprises a first transmission piece and a second transmission piece, the first transmission piece is slidably matched with the chute, and one end of the first transmission piece is connected with the water absorbing piece (11); the second transmission piece is in transmission connection with the first transmission piece, and is in driving connection with the driving motor (13);
when the driving motor (13) rotates, the second transmission part rotates and enables the first transmission part to slide along the sliding seat, and then the water absorbing part (11) can move between a first working position and a second working position.
7. A method of controlling a water membrane breaking mechanism according to any one of claims 1-6, characterized in that the control method comprises:
when a water film is formed on the filter screen (22), the water absorbing end (111) is contacted with the filter screen (22).
8. The method of controlling a water membrane breaking mechanism according to claim 7, wherein said bringing the water absorbing end (111) into contact with a filter screen (22) comprises:
and controlling a water isolation door (14) of the water film breaking mechanism to open an opening, so that the water absorbing piece (11) moves to a first working position until the water absorbing end (111) is in contact with the filter screen (22).
9. The method of controlling a water membrane breaking mechanism according to claim 7, wherein the method of controlling further comprises:
when the water absorbing end (111) is contacted with the filter screen (22), air flow passes through the air duct (21).
10. The method of controlling a water membrane breaking mechanism according to claim 9, wherein the method of controlling further comprises:
and after judging that the water film on the filter screen (22) is broken, separating the water absorbing end (111) from the filter screen (22).
11. The method of controlling a water film breaking mechanism according to claim 10, wherein said determining a water film break on said filter screen (22) includes:
acquiring the temperature T1 of the air inlet end and the temperature T2 of the air outlet end of the air duct (21) in unit time;
calculating an absolute value delta T of the difference between T1 and T2 and comparing the absolute value delta T with a preset temperature T0;
when DeltaT is more than or equal to T0, indicating that the water film on the filter screen (22) is not broken;
when DeltaT < T0 and is maintained for a first preset period of time, water film rupture on the filter screen (22) is indicated.
12. The method of controlling a water membrane breaking mechanism according to claim 10, wherein the method of controlling further comprises:
controlling the water absorbing piece (11) to move to a second working position until the water absorbing piece (11) is positioned in the water-proof cavity;
enabling air to flow through the air duct (21) to enter the water-proof cavity and keep for a second preset time period;
and a water isolation door (14) of the water film breaking mechanism is controlled to close the opening.
13. A laundry treatment apparatus comprising the water film breaking mechanism according to any one of claims 1 to 6 or a control method employing the water film breaking mechanism according to any one of claims 7 to 12;
the clothes treatment device is provided with a drying air duct (21), and a filter screen (22) is arranged in the drying air duct (21); the water film breaking mechanism is arranged in the air duct (21) and is close to the filter screen (22).
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| CN115608067A (en) | 2023-01-17 |
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