CN114045647B - Inner barrel assembly, clothes treatment equipment with drying function and control method - Google Patents
Inner barrel assembly, clothes treatment equipment with drying function and control method Download PDFInfo
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- CN114045647B CN114045647B CN202111375813.5A CN202111375813A CN114045647B CN 114045647 B CN114045647 B CN 114045647B CN 202111375813 A CN202111375813 A CN 202111375813A CN 114045647 B CN114045647 B CN 114045647B
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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
- D06F58/00—Domestic laundry dryers
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
- D06F58/04—Details
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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
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
- D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/28—Air properties
- D06F2103/32—Temperature
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/28—Air properties
- D06F2103/34—Humidity
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/32—Air flow control means
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
Abstract
The invention provides an inner cylinder assembly, a clothes processing device with a drying function and a control method. The inner barrel assembly comprises a barrel body, a plurality of drainage holes are formed in the side peripheral wall of the barrel body, a switch mechanism is arranged on the side peripheral wall of the barrel body and can act according to the rotating speed of the barrel body, when the rotating speed of the barrel body is smaller than an opening and closing threshold value, the switch mechanism is in a first state, the drainage holes are opened, and when the rotating speed of the barrel body is larger than or equal to the opening and closing threshold value, the switch mechanism is in a second state, and the drainage holes are closed. According to the invention, the flow direction of the circulating airflow is guided by opening and closing the drainage holes on the periphery of the inner cylinder, and the state of the opening and closing mechanism can be changed through the rotating speed of the cylinder, so that the opening and closing of the drainage holes are controlled, the moisture content and the drying uniformity in the later drying period are improved, and the drying time is shortened.
Description
Technical Field
The invention relates to the technical field of clothes treatment equipment, in particular to an inner cylinder assembly, clothes treatment equipment with a drying function and a control method.
Background
Because the volume ratio of the washing and drying machine is smaller than that of the clothes dryer, the drying performance and efficiency are inferior to those of the clothes dryer, and particularly, when the clothes to be dried reach the nominal capacity, the problems of poor drying uniformity and long drying time sometimes occur.
The inner drum periphery and the drum bottom of a general washing and drying machine are provided with through holes, clothes with the through holes on the periphery have certain gaps in the inner drum rotation, the resistance is small, the drum bottom is in contact with the clothes for a long time, the resistance at the bottom is large, circulating airflow rarely circulates from the through holes at the bottom, and the clothes at the drum bottom are not easy to dry. Under the condition that the clothes are more, the clothes are difficult to realize position transfer in the drum, so that the clothes at the bottom of the drum are difficult to dry when the drying is finished, and the drying uniformity and the drying time are influenced.
Disclosure of Invention
In view of this, the present invention provides an inner drum assembly, a clothes processing apparatus with drying function and a control method, which are at least used for solving the technical problems of poor clothes drying uniformity and low efficiency in the prior art, and specifically:
in a first aspect, the present invention provides an inner cylinder assembly comprising a cylinder body, a plurality of water drainage holes formed on a side circumferential wall of the cylinder body,
the side wall of the cylinder body is provided with a switch mechanism which can act according to the rotating speed of the cylinder body,
when the rotating speed of the cylinder body is less than the opening and closing threshold value, the switch mechanism is in a first state, the drain hole is opened,
when the rotating speed of the cylinder body is greater than or equal to the opening and closing threshold value, the opening and closing mechanism is in a second state, and the drain hole is closed.
Further alternatively, the opening and closing mechanism may include a mount fixedly mounted on an outer peripheral wall of the cylinder, and a slide plate slidably disposed in the mount along a circumferential direction of the cylinder, the slide plate having a communication hole formed therein,
in the first state, the sliding plate is in a first working position, the communication hole is communicated with the drainage hole, in the second state, the sliding plate blocks the drainage hole,
an elastic piece is arranged in the mounting seat, and in the first state, the elastic piece provides elastic force to enable the sliding plate to be kept at the first working position.
Further optionally, the mounting seat includes two sliding rails extending along the circumferential direction of the barrel and parallel to each other, and the sliding plate is located between the two sliding rails and slidably connected to the sliding plate.
Further optionally, the mounting seat further comprises two connecting blocks, the two connecting blocks are respectively connected with two ends of the sliding rail, so that the mounting seat forms a frame-shaped structure,
the elastic parts are arranged in two numbers, and the two elastic parts are respectively arranged between the two ends of the sliding plate and the connecting block.
Further optionally, both ends of the sliding plate and/or the connecting block are provided with positioning columns,
the elastic part is a spring, and the end part of the spring is sleeved on the positioning column and is connected with the sliding plate and the connecting block.
Further optionally, the bottom of the cylinder is provided with a through hole; when the sliding plate in the switching mechanism is deviated to close the drain holes on the periphery of the cylinder under the action of centrifugal force due to the change of the rotating speed of the cylinder, circulating air flows out through the through holes.
In a second aspect, the present invention provides a laundry treating apparatus having a drying function, comprising the above inner drum assembly,
the clothes treatment equipment with the drying function further comprises a weighing module used for weighing clothes in the drum, and a temperature and humidity detection module used for detecting the air inlet temperature and the air outlet humidity of the inner drum assembly during drying.
In a third aspect, the present invention provides a control method of a laundry processing apparatus having a drying function, comprising:
starting a drying program;
controlling the inner cylinder assembly to rotate in a positive and negative rotation alternative manner;
acquiring a clothes weight value W and temperature and humidity parameters of a drying system, and calculating a return air moisture content Dt according to the temperature and humidity parameters, wherein the temperature and humidity parameters comprise an inlet air temperature Tit, an outlet air relative humidity value Ht and an outlet air temperature Tot;
optionally, the drying program is controlled according to the weight of the clothes and the temperature and humidity parameters, and an initial value of the rotation speed of the inner drum assembly is V1, and V1 is smaller than the opening and closing threshold.
Further optionally, the process of controlling the drying program according to the weight of the laundry and the temperature and humidity parameters includes:
when the weight value W of the clothes is smaller than the load critical value Wr, judging whether a dry judgment condition is met or not according to the air inlet temperature Tit, the air outlet relative humidity value Ht and the air outlet temperature Tot;
when the dry judgment condition is met, the drying program is ended, and when the dry judgment condition is not met, the inner cylinder assembly is controlled to continue rotating until the dry judgment condition is met;
wherein the condition of judging comprises:
the temperature change value delta T is less than or equal to the dry judgment temperature Te, and Ht is less than or equal to the dry judgment humidity He; Δ T = Tit-Tot.
Further optionally, the process of controlling the drying program according to the weight of the laundry and the temperature and humidity parameters further includes:
when the clothes load value W is larger than or equal to the load critical value Wr, whether the drying process is finished or not is determined according to the change of the return air moisture content.
Further optionally, the determining whether to end the drying process according to the change in the moisture content of the return air comprises:
acquiring a count value C corresponding to the return air moisture content Dt at any continuous time, wherein in the continuous time, the corresponding return air moisture content at each time is less than or equal to the corresponding return air moisture content at the previous time;
if the count value C is smaller than a count threshold value Cc, judging whether the drying program is ended or not according to the judging condition;
if the counting value C is greater than or equal to the counting threshold Cc, the inner drum assembly is controlled to adjust the rotating speed, the switch mechanism is changed, and the drying program is controlled again from the judgment of the weight value W of the clothes.
In a further alternative,
controlling the inner barrel assembly to adjust the rotational speed comprises:
when the rotating speed of the cylinder body is V1, adjusting the rotating speed to be V2 to enable the switch mechanism to close the drainage hole;
when the rotating speed of the cylinder body is V2, the rotating speed is adjusted to be V1, so that the switch mechanism opens the drain hole,
wherein V2 is greater than the opening and closing threshold.
According to the invention, the flow direction of the circulating airflow is guided by opening and closing the drainage holes on the periphery of the inner cylinder, and the state of the opening and closing mechanism can be changed through the rotating speed of the cylinder, so that the opening and closing of the drainage holes are controlled, the moisture content and the drying uniformity in the later drying period are improved, and the drying time is shortened.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural view of an inner barrel assembly according to an embodiment of the present invention;
FIG. 2 illustrates a schematic top view of an inner barrel assembly according to an embodiment of the present invention;
FIG. 3 shows a schematic structural view of a switch mechanism according to an embodiment of the present invention;
FIG. 4 is a logic diagram of drying control according to an embodiment of the present invention;
fig. 5 shows a moisture content determination flowchart according to an embodiment of the present invention.
In the figure:
1. a barrel; 2. a switch mechanism; 21. a mounting seat; 211. a slide rail; 212. connecting blocks; 22. a slide plate; 23. a spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present 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 the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in 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 good 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 good or system. Without further limitation, an element defined by the phrases "comprising one of \8230;" does not exclude the presence of additional like elements in an article or system comprising the element.
The current washing and drying machine dries the degree of consistency poor, the stoving later stage dehumidification volume sharply reduces, stoving time is long under the more condition of stoving clothing, and user experience is not good.
According to the invention, the flow direction of the circulating airflow is guided through the opening and closing mechanism of the drainage holes on the periphery of the inner cylinder, so that the moisture content and the drying uniformity in the later drying period are improved, and the drying time is shortened. Meanwhile, the moisture content of the return air is calculated through detection of the temperature and the relative humidity of the return air, and the time for opening and closing the drainage holes on the periphery of the inner cylinder is determined through the change of the moisture content. Through the change of inner tube rotational speed for slider among the switching mechanism takes place the skew under the effect of centrifugal force, thereby closed inner tube drainage hole all around, make circulating air flow can only flow through the through-hole of cylinder bottom, force with the clothing heat transfer of cylinder bottom, improve the return air moisture content of the later stage of drying with this, improve the degree of consistency of drying, shorten the stoving time. The invention is described in detail below with reference to specific examples:
as shown in fig. 1 and 2, the present invention provides an inner cylinder assembly, which comprises a cylinder body 1, a plurality of drainage holes formed on the side peripheral wall of the cylinder body 1,
the side wall of the cylinder body 1 is provided with a switch mechanism 2, the switch mechanism 2 can act according to the rotating speed of the cylinder body 1,
when the rotating speed of the cylinder body 1 is less than the opening and closing threshold value, the switch mechanism 2 is in the first state, the drain hole is opened,
when the rotating speed of the cylinder body 1 is greater than or equal to the opening and closing threshold value, the opening and closing mechanism 2 is in the second state, and the drainage hole is closed.
Specifically, as shown in fig. 3, the opening and closing mechanism 2 includes a mounting seat 21 fixedly mounted on the outer peripheral wall of the cylinder 1, and a slide plate 22 slidably disposed in the mounting seat 21 along the circumferential direction of the cylinder 1, the slide plate 22 having a communication hole formed thereon, in a first state, the slide plate 22 being in a first operating position, the communication hole being in communication with the drain hole, and in a second state, the slide plate 22 blocking the drain hole, and an elastic member being disposed in the mounting seat 21, the elastic member providing an elastic force in the first state to hold the slide plate 22 in the first operating position. Preferably, when the rotating speed V = V1 of the cylinder 1 is, the centrifugal force acts to prevent the sliding plate 22 from deviating, the position of the sliding block is kept unchanged under the action of the elastic element, and the drainage hole is in a conduction state; when the rotating speed V = V2 of the cylinder 1, the sliding plate 22 is deflected by the centrifugal force, the drain hole is closed, V1 is smaller than the opening and closing threshold, and V2 is larger than the opening and closing threshold, that is, V2 is greater than V1, preferably, the value ranges of V1 and V2 are 20rpm to 70rpm, and the specific rotating speed value is determined according to the actual weight of the sliding plate 22.
Preferably, the mounting seat 21 includes two sliding rails 211 extending along the circumferential direction of the barrel 1 and parallel to each other, and the sliding plate 22 is located between the two sliding rails 211 and slidably connected with the sliding rails. The mounting base 21 further includes two connecting blocks 212, the two connecting blocks 212 are respectively connected with two ends of the sliding rail 211, so that the mounting base 21 forms a frame structure, and two elastic members are provided, and the two elastic members are respectively arranged between two ends of the sliding plate 22 and the two connecting blocks 212.
Preferably, both ends of slide 22 and/or be provided with the reference column on the connecting block 212 all, in this embodiment, both ends of slide 22 and connecting block 212 are provided with the reference column, can be radially spacing to the elastic component, and the elastic component is spring 23, and the tip suit of spring 23 is on the reference column to be connected with slide 22 and connecting block 212.
The invention also provides a clothes treatment device with the drying function, which comprises the inner cylinder assembly, a weighing module for weighing clothes in the cylinder, and a temperature and humidity detection module for detecting the air inlet temperature, the air outlet temperature and the air outlet humidity of the inner cylinder assembly during drying. In this embodiment, the laundry treating apparatus having the drying function is a washing and drying all-in-one machine.
As shown in fig. 4, the control method of the laundry treating apparatus having the drying function of the present invention includes:
starting a drying program;
acquiring a clothes weight value W, an air inlet temperature Tit, an air outlet relative humidity value Ht and an air outlet temperature Tot, and calculating an air return moisture content Dt;
the inner barrel assembly is controlled to rotate in a positive and negative rotation mode at a rotating speed V, preferably, the rotating speed V can be a constant rotating speed, namely the rotating speed of the positive and negative rotation is the same, or the rotating speed V is not constant, the rotating speed can be changed after the positive and negative rotation is alternated, but the state of the switch mechanism cannot be changed in the rotating speed changing range in the positive and negative rotation alternation process;
and controlling the rotating speed of the inner drum component according to the weight of the clothes and the temperature and humidity parameters, and judging whether the drying process is finished.
Preferably, the initial value of the rotating speed V of the inner barrel assembly is V1, and V1 is smaller than the opening and closing threshold value,
when the weight value W of the clothes is smaller than the load critical value Wr, judging whether a dry judgment condition is met, when the dry judgment condition is met, finishing the drying program, and when the dry judgment condition is met, controlling the inner barrel assembly to continue rotating; wherein, the condition of judging futilely includes:
calculating a temperature change value Δ T, wherein Δ T = Tit-Tot,
delta T is less than or equal to the desiccation temperature Te, ht is less than or equal to the desiccation humidity He, wherein the value range of Te is 1-15 ℃, and the value range of He is 20-40%.
When the clothes loading value W is larger than or equal to the load critical value Wr, wherein the value of Wr is 1/12-1/14 of the rated load of the washing and drying integrated machine, the rotating speed of the drum is controlled or whether the drying program is finished or not is judged according to the moisture content change.
The method specifically comprises the following steps: according to empirical formula
Saturation pressure of water vapor:
when t = -100 to 0 ℃:
C 1 ＝-5674.5359；C 2 ＝6.3925247；C 3 ＝-0.9677843x10 -2 ；C 4 ＝0.62215701x10 -6 ；
C 5 ＝0.20747825x10 -18 ；C 6 ＝-0.9484024x10 -12 ；C 7 ＝4.1635019。
when t =0 to 200 ℃:
C 1 ＝-5800.2206；C 2 ＝1.3914993；C 3 ＝-0.048640239；
C 4 ＝0.41764768x10 -4 ；C 5 ＝-0.14452093x10 -7 ；C 6 ＝0；C 7 ＝6.5459673。
the saturation pressure Ps of the water vapor is calculated, where the thermodynamic temperature T is equal to +273.15 degrees celsius.
And calculating the partial pressure Pq of the water vapor according to the formula psi = Pq/Ps, wherein psi is relative humidity, calculating the outlet air moisture content Dt at the t second according to the formula d =0.622 Pq/(Pa-Pq), wherein d is moisture content, pa is atmospheric pressure, taking an average value once a minute, and taking the average moisture content at the t minute as the return air moisture content Dt.
And in the time period of the duration C, the value of the return air content Dt is not increased, and C is less than the time threshold Cc, judging whether the drying process is finished or not according to the judgment condition. Wherein the value range of Cc is 5-15 min.
When C is larger than or equal to Cc, the inner drum assembly is controlled to adjust the rotating speed, the switch mechanism 2 is changed in state, and then the drying program is controlled again from the judgment of the weight value W of the clothes.
In particular, the amount of the solvent to be used,
firstly, whether more clothes are in the drum is judged, if the weight W of the current clothes is smaller than a critical value Wr, the clothes in the drum are less, the inner position and the outer position of the clothes can be exchanged through the periodic operation of the rotating speed V, and therefore high drying uniformity and short drying time are achieved, and the heat and humidity exchange is increased without adjusting the flow direction of air flow through the switches of the drain holes on the periphery of the inner wall of the roller. And at the moment, if the difference value between the drum air inlet temperature Tit and the drum air outlet temperature Tot is less than or equal to the drying judgment temperature Te and the outlet relative humidity Ht is less than or equal to the drying judgment humidity He, finishing drying.
If the current weight W of the clothes is larger than or equal to the critical value Wr, the clothes in the drum are more, and at the moment, the circulating air flow flows out through the drum bottom through the switch of the hydrophobic hole, so that the heat exchange of the drum bottom is forced. After the drainage holes on the periphery of the inner cylinder are closed, the airflow flowing resistance in the roller is increased, and the air quantity is reduced. If a large amount of heat and moisture exchange is carried out on peripheral clothes when the water-repellent holes are closed, the dehumidification capacity of the system is reduced due to the reduction of the air quantity, so that the adjustment is very important.
As shown in fig. 5, if the moisture content of the return air does not continuously rise for the time Cc, which ranges from 5min to 15min, it is determined that the peripheral clothes are dried, and the condition of adjusting the flow direction of the circulating air flow is satisfied. Specifically, the count value C is calculated once in 1 minute, the initial value is 0, if the current average moisture content Dt is equal to or less than the average moisture content D (t-1) in the previous minute, the count value C is increased by 1 on the original basis, and if the average moisture content Dt at this time is greater than the average moisture content D (t-1) in the previous minute, the count value C is cleared to zero, and the count value C is recalculated from the next minute.
If the current count value C is detected to be larger than or equal to Cc, the condition of adjusting the flow direction of the circulating airflow is met, the roller stops rotating in a rotating speed V forward rotation and reverse rotation stop period, the value of the rotating speed V is changed into V2, meanwhile, the count value C is cleared, and V2 is the rotating speed of the opening and closing mechanism in the second state, namely the rotating speed of closing the water drainage holes on the periphery of the inner barrel.
In order to prevent the clothes at the bottom of the drum from being transferred to the periphery of the drum after periodic operation in the drum, the drainage hole on the inner wall of the drum is closed to play a role in increasing the dehumidification capacity but reduce the air volume, so that after the rotating speed value V is changed into V2 in the last step, the counting value C is cleared, and the counting is continued according to the previous rule. If the count value C is larger than or equal to Cc again, the load position is possibly exchanged at the moment, the value of the rotating speed V is changed into V1, and the count value C is cleared. Considering the situation that the moisture content is gradually reduced in the later drying period and the moisture content is reduced after multiple adjustments are possible in actual operation, a judgment is added in the process, and when the switch of the drainage hole needs to be adjusted, if the value of the rotating speed V is V1 at the moment, namely the drainage hole is opened, the value of the rotating speed V is changed into V2, namely the drainage hole is closed; if the value of the rotation speed V is V2 at this time, that is, the drain hole state is off, the value of the rotation speed V is V1, that is, the drain hole is opened. And continuing to judge after adjustment until the judgment condition is met, and finishing drying.
Preferably, when the current count value C is detected to be greater than or equal to Cc for the first time, the drum stops rotating at the positive rotation and the negative rotation of the rotation speed V for a stop period, at this time, the value of the rotation speed V is changed to V2, and then the drum is operated at V2 until the drying is finished.
The invention calculates the moisture content of the return air by detecting the temperature and the relative humidity of the return air, and determines the time for opening and closing the drainage holes around the inner cylinder according to the change of the moisture content. Through the change of inner tube rotational speed for slider among the switching mechanism takes place the skew under the effect of centrifugal force, thereby closed inner tube drainage hole all around, make circulating air flow can only flow through the through-hole of cylinder bottom, force with the clothing heat transfer of cylinder bottom, improve the return air moisture content of the later stage of drying with this, improve the degree of consistency of drying, shorten the stoving time.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the disclosure is not limited to the precise construction, arrangements, or instrumentalities 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. An inner cylinder component is characterized by comprising a cylinder body, a plurality of drainage holes are formed on the peripheral wall of the cylinder body,
the side wall of the cylinder body is provided with a switch mechanism which can act according to the rotating speed of the cylinder body,
when the rotating speed of the cylinder body is less than the opening and closing threshold value, the switch mechanism is in a first state, the drain hole is opened,
when the rotating speed of the cylinder body is greater than or equal to the opening and closing threshold value, the opening and closing mechanism is in a second state, and the drain hole is closed;
and a through hole is formed in the bottom of the cylinder, and when the drainage hole is closed, the drying circulating airflow flows out through the through hole.
2. The inner barrel assembly according to claim 1, wherein the opening and closing mechanism includes a mount fixedly mounted on an outer peripheral wall of the barrel body, and a slide plate slidably provided in the mount along a circumferential direction of the barrel body, the slide plate having a communication hole formed therein,
in the first state, the sliding plate is in a first working position, the communication hole is communicated with the drainage hole, in the second state, the sliding plate blocks the drainage hole,
an elastic piece is arranged in the mounting seat, and in the first state, the elastic piece provides elastic force to enable the sliding plate to be kept at the first working position.
3. The inner barrel assembly of claim 2, wherein the mount comprises two rails extending circumferentially of the barrel and parallel to each other, the slide plate being positioned between and slidably coupled to the two rails.
4. The inner barrel assembly of claim 3, wherein said mounting base further comprises two connecting blocks, said two connecting blocks being connected to two ends of said sliding rail respectively, so that said mounting base is formed into a frame-shaped structure,
the elastic parts are arranged in two numbers, and the two elastic parts are respectively arranged at the positions between the two ends of the sliding plate and the connecting blocks.
5. An inner barrel assembly according to claim 4, wherein locating posts are provided on both ends of the sliding plate and/or on the connecting block,
the elastic part is a spring, and the end part of the spring is sleeved on the positioning column and is connected with the sliding plate and the connecting block.
6. The inner barrel assembly of claim 4, wherein the bottom of the barrel is provided with a through hole; when the sliding plate in the switching mechanism is deviated to close the drain holes on the periphery of the cylinder under the action of centrifugal force due to the change of the rotating speed of the cylinder, circulating air flows out through the through holes.
7. A laundry treating apparatus having a drying function, comprising the drum assembly of any one of claims 1 to 6,
the clothes treatment equipment with the drying function further comprises a weighing module used for weighing clothes in the drum, and a temperature and humidity detection module used for detecting the air inlet temperature and the air outlet humidity of the inner drum assembly during drying.
8. A control method of a laundry treatment apparatus with drying function according to claim 7, characterized by comprising:
starting a drying program;
controlling the inner cylinder assembly to rotate in a positive and negative rotation alternative manner;
acquiring a clothes weight value W and temperature and humidity parameters of a drying system, and calculating a return air moisture content Dt according to the temperature and humidity parameters, wherein the temperature and humidity parameters comprise an inlet air temperature Tit, an outlet air relative humidity value Ht and an outlet air temperature Tot;
and controlling the process of the drying program according to the weight of the clothes and the temperature and humidity parameters.
9. The control method according to claim 8,
the initial value of the rotating speed of the inner cylinder assembly is V1, and V1 is smaller than the opening and closing threshold value.
10. The method according to claim 8, wherein the controlling the drying process according to the weight of the laundry and the temperature and humidity parameters comprises:
when the weight value W of the clothes is smaller than the load critical value Wr, judging whether a dry judgment condition is met or not according to the air inlet temperature Tit, the air outlet relative humidity value Ht and the air outlet temperature Tot;
when the dry judgment condition is met, the drying program is ended, and when the dry judgment condition is not met, the inner cylinder assembly is controlled to continue rotating until the dry judgment condition is met;
wherein the condition of arbitration includes:
the temperature change value is less than or equal to the drying temperature Te, and Ht is less than or equal to the drying humidity He; Δ T = Tit-Tot.
11. The method as claimed in claim 10, wherein the step of controlling the drying process according to the weight of the laundry and the temperature and humidity parameters further comprises:
when the clothes weight value W is larger than or equal to the load critical value Wr, whether the drying process is finished or not is determined according to the change of the return air moisture content.
12. The control method of claim 11 wherein said determining whether to end the drying process based on the change in the return air moisture content comprises:
acquiring a count value C corresponding to the return air moisture content Dt at any continuous time, wherein in the continuous time, the corresponding return air moisture content at each time is less than or equal to the corresponding return air moisture content at the previous time;
if the count value C is smaller than a count threshold value Cc, judging whether the drying program is ended or not according to the judging condition;
if the counting value C is larger than or equal to the counting threshold Cc, the inner drum assembly is controlled to adjust the rotating speed, the switch mechanism is changed, and the drying program is controlled from the judgment of the weight value W of the clothes again.
13. The control method according to claim 12,
controlling the inner barrel assembly to adjust the rotational speed comprises:
when the rotating speed of the cylinder body is V1, adjusting the rotating speed to be V2 to enable the switch mechanism to close the drainage hole;
when the rotating speed of the cylinder body is V2, the rotating speed is adjusted to be V1, so that the switch mechanism opens the drain hole,
wherein V2 is greater than the opening and closing threshold.
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| CN115058861A (en) * | 2022-07-01 | 2022-09-16 | 无锡小天鹅电器有限公司 | Clothes treatment equipment and control method |
| CN115058865A (en) * | 2022-07-01 | 2022-09-16 | 无锡小天鹅电器有限公司 | Clothes treatment equipment and control method |
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| DE102010031267A1 (en) * | 2010-07-13 | 2012-01-19 | BSH Bosch und Siemens Hausgeräte GmbH | Domestic appliance with a drum |
| KR20120065628A (en) * | 2010-12-13 | 2012-06-21 | 삼성전자주식회사 | Dryer |
| CN111101351B (en) * | 2018-10-26 | 2022-08-26 | 无锡小天鹅电器有限公司 | Drying system and clothes treatment device |
| CN111188157B (en) * | 2020-01-09 | 2021-05-28 | 珠海格力电器股份有限公司 | Washing equipment with hot air drying system and control method thereof |
| CN113308841A (en) * | 2020-02-27 | 2021-08-27 | 青岛海尔滚筒洗衣机有限公司 | Clothes treatment device |
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