WO2018028688A1 - 用于洗干一体机的烘干方法及洗干一体机 - Google Patents

用于洗干一体机的烘干方法及洗干一体机 Download PDF

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Publication number
WO2018028688A1
WO2018028688A1 PCT/CN2017/097162 CN2017097162W WO2018028688A1 WO 2018028688 A1 WO2018028688 A1 WO 2018028688A1 CN 2017097162 W CN2017097162 W CN 2017097162W WO 2018028688 A1 WO2018028688 A1 WO 2018028688A1
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Prior art keywords
inner cylinder
temperature
drying
speed
steady state
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/097162
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English (en)
French (fr)
Inventor
徐永洪
赵雪利
张立君
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Drum Washing Machine Co Ltd
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Qingdao Haier Drum Washing Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610663802.XA external-priority patent/CN107724023B/zh
Priority claimed from CN201610657184.8A external-priority patent/CN107724028B/zh
Priority claimed from CN201610659367.3A external-priority patent/CN107724029B/zh
Priority claimed from CN201610657185.2A external-priority patent/CN107724022B/zh
Application filed by Qingdao Haier Drum Washing Machine Co Ltd filed Critical Qingdao Haier Drum Washing Machine Co Ltd
Publication of WO2018028688A1 publication Critical patent/WO2018028688A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • 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
    • D06F2103/06—Type or material
    • 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
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • 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
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
    • 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
    • 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
    • D06F58/44—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing, e.g. for smoothing or removing creases
    • 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
    • D06F58/46—Control of the operating time

Definitions

  • the present disclosure relates to the field of laundry drying technology, for example, to a drying method and a washing and drying machine for a washing and drying machine.
  • the large-capacity washing and drying machine can meet the requirements of the user to dry large drying objects (drying objects such as clothes, sheets, etc.) and multiple drying objects, and is deeply loved by users.
  • drying objects drying objects such as clothes, sheets, etc.
  • multiple drying objects and is deeply loved by users.
  • the large-capacity washing and drying machine has become the development direction of the industry.
  • meeting the user's requirements for the drying degree of drying objects has become the research direction and trend of products in the industry.
  • a drying method for a washing and drying machine solves the problem that the drying uniformity of the drying object is poor due to the poor drying degree of the drying object in the middle and the rear of the inner cylinder.
  • the washing and drying machine reduces the problem that the drying uniformity of the drying object is poor due to the poor drying degree of the drying object in the middle and the rear of the inner cylinder.
  • a drying method for a washing and drying machine comprising the following steps:
  • the inner cylinder is rotated at a first speed capable of shaking the drying object
  • the inner cylinder rotates at a second rotation speed greater than the first rotation speed and starts to convey hot air into the inner cylinder.
  • the low-speed jittering step intermittently or continuously determining whether the execution time of the low-speed jittering step reaches the first preset time, when the time of the low-speed jittering step reaches the first preset After the time, the low-speed dithering step is ended and a uniform heating step is entered, the first preset time being determined by a plurality of the following four ways or by the following second, third, and fourth modes Any one is determined:
  • the first preset time is a preset fixed time
  • the first preset time is determined according to the total weight of the drying object
  • the first preset time is determined according to a maximum rotational speed when the inner cylinder is in operation
  • the first preset time is determined according to a material of the drying object.
  • the uniform heating step is ended; after the second heating step is performed for a second predetermined time, after the temperature in the inner cylinder reaches a steady state, and the temperature in the inner cylinder and the outer cylinder After the difference in temperature of the water reaches a steady state, the uniform heating step is ended; when the temperature in the inner cylinder reaches a steady state, and the difference between the temperature in the inner cylinder and the temperature in the outer cylinder is stabilized After the state, the uniform heating step is ended; after the second heating step is performed for a second predetermined time, and after the temperature in the inner cylinder reaches a steady state, the uniform heating step is ended; or when the uniform heating step is performed After the second predetermined time has elapsed, and the difference between the temperature in the inner cylinder and the temperature in
  • the method further includes the following steps:
  • the inner cylinder alternately rotating at the second rotation speed and a third rotation speed capable of causing the drying object to form a passage in the middle of the inner cylinder under the action of centrifugal force, wherein the third rotation speed Greater than the second rotational speed.
  • the method further includes:
  • the inner cylinder rotating at a fourth rotation speed capable of reducing wrinkles of the drying object, wherein the fourth rotation speed is less than the third rotation speed;
  • the inner cylinder rotates at a fifth rotation speed greater than the fourth rotation speed, stops conveying hot air, and conveys cold air to the inner cylinder to lower the temperature of the drying object.
  • the accelerated drying step is ended;
  • the accelerated drying step is ended;
  • the accelerated drying step is performed for a third preset time, and after the temperature in the inner cylinder reaches a steady state, the accelerated drying step is ended; or
  • the accelerated drying step is performed for a third predetermined time, and the difference between the temperature in the inner cylinder and the temperature in the outer cylinder reaches a steady state, the accelerated drying step is ended.
  • the determining manner of the third preset time is: calculating, according to the total weight of the drying object and the maximum speed that can be achieved when the washing program is dehydrated, that the moisture content of the drying object is less than 10%. Time, the time as the third preset time.
  • the first rotating speed is in a range of 20 rpm to 30 rpm, and the inner cylinder is alternately operated in a forward and reverse direction and the turning-off ratio is 120 s: 5 s, wherein: is a ratio symbol;
  • the second rotation speed is in the range of 30 rpm to 60 rpm, and the inner cylinder is alternately operated in a forward and reverse direction with a rotation ratio of 50 s: 5 s;
  • the third rotational speed is in the range of 90 rpm-120 rpm
  • the inner cylinder is alternately operated, and the inner cylinder is rotated at the third rotational speed and the second rotational speed.
  • the ratio is (5-10) min: (5-10) min.
  • the method further includes: a first comparing step, wherein the first comparing step comprises:
  • the step of the uniform heating step directly enters the speed reduction wrinkle step
  • the uniform heating step ends and enters the accelerated drying step.
  • the method further includes: a second comparing step, wherein the second comparing step comprises:
  • the fourth rotating speed is in a range of 20 rpm to 30 rpm, and the inner cylinder is alternately operated in a forward and reverse direction and the turning ratio is 120 s: 5 s;
  • the fifth rotation speed is in the range of 30 rpm to 60 rpm, and the inner cylinder is alternately operated in a forward and reverse direction with a turn-off ratio of 50 s: 5 s.
  • the washing and drying machine adopts the above drying method for the washing and drying machine. Therefore, the washing and drying machine can make the hot air more fully contact with the drying objects in the middle and the rear of the inner cylinder, improve the drying uniformity of the whole drying object, and improve the drying performance of the washing and drying machine.
  • the time condition and the two temperature conditions are respectively determined or combined to determine whether to end the accelerated drying step, so that the end timing of the accelerated drying step is set reasonably, and the entire drying process is optimized.
  • FIG. 1 is a schematic view showing the principle of a drying method for a washing and drying machine in the related art
  • FIG. 2 is a schematic flow chart of a drying method for a washing and drying machine provided by the specific embodiment
  • FIG. 3 is a schematic diagram of a method of determining a first preset time for ending a low-speed dithering step in the drying method of FIG. 2;
  • FIG. 4 is a timing diagram of the drying object weight sensing method of FIG. 3;
  • FIG. 5 is a timing diagram of the drying object material method of Figure 3.
  • Figure 6 is a timing diagram of the fixed time method of Figure 3.
  • Figure 7 is a timing diagram of the rotational speed feedback method of Figure 3.
  • FIG. 8 and FIG. 9 are a schematic flow chart and a timing chart when the condition for ending the uniform heating step in the drying method of FIG. 2 and entering the next step is a time condition;
  • FIG. 10 and FIG. 12 are a schematic flow chart and a timing chart when the condition for ending the uniform heating step in the drying method of FIG. 2 and proceeding to the next step is a temperature condition;
  • Figure 11 is a schematic view showing the corresponding structure when the temperature condition in Figure 10 is employed;
  • Figure 13 is a flow chart showing the condition in which the uniform heating step is completed in the drying method of Figure 2 and the conditions for proceeding to the next step are another temperature condition;
  • the condition of the step is a schematic diagram of the flow and a timing diagram at the time condition;
  • FIG. 16 and FIG. 17 are a schematic flow chart and a timing chart when the condition for ending the accelerated drying step and entering the speed reduction wrinkle removal step in the drying method of FIG. 2 is a temperature condition;
  • Fig. 18 is a flow chart showing the condition in which the accelerated drying step is completed in the drying method of Fig. 2 and the condition for entering the speed reduction wrinkle reduction step is another temperature condition.
  • t 1 first preset time
  • t 2 second preset time
  • t 3 third preset time
  • 1 first sensor
  • 2 second sensor
  • 3 motor.
  • the drying principle of the washing and drying machine of the related art is: heating the air by a heater (for example, a set of heating wires); the heated air (i.e., hot air) is blown into the inner cylinder by the fan to form hot air.
  • a heater for example, a set of heating wires
  • the heated air i.e., hot air
  • the fan to form hot air.
  • the drying object in the inner cylinder is heated to evaporate the water in the drying object into high-temperature and high-humidity steam; and under the negative pressure formed by the axial flow fan, the high-temperature and high-humidity steam is sucked into the condenser, and the high-temperature and high-humidity steam is
  • the condenser condenses into condensed water, and the condensed water flows down the outer wall of the exchanger, and the cooled air continues to circulate.
  • the inner cylinder rotates at a constant speed and a fixed turning speed at a constant speed, so that the drying object is uniformly dried.
  • the drying uniformity of the drying objects at different positions in the inner cylinder is poor, wherein the middle of the inner cylinder and the rear of the inner cylinder (away from the hot air blowing)
  • the drying degree of the drying object of a part of the end is worse than that of the drying object at the front of the inner cylinder and the drying object near the inner cylinder wall, resulting in a problem that the drying uniformity of the drying object is poor.
  • a drying method for a washing and drying machine which solves the overall drying uniformity of the drying object due to the poor drying degree of the drying object in the middle and the rear of the inner cylinder. Poor question.
  • the drying method is performed after the end of the washing process, and may include a low speed shaking step, a uniform speed heating step, an accelerated drying step, a speed reduction wrinkle step, and a speed increasing cooling step.
  • the inner cylinder is rotated at a first rotational speed capable of shaking the drying object, thereby avoiding There is a case where the drying object is not attached to the inner cylinder wall and cannot be dried in the subsequent step. If the inner tub is completely stationary, only the drying object at the highest position can be peeled off by the inner gravity of the inner cylinder wall, and the inner tub can be controlled to rotate at a low rotation speed, so that all the drying objects are separated from the inner cylinder wall by their own gravity.
  • the inner cylinder can be rotated at the first rotation speed, so that the drying object is separated from the inner cylinder wall by its own gravity.
  • the first rotational speed may be in the range of 20 revolutions per minute (rpm) -30 rpm
  • the internal cylinder may have a turn-on ratio of 120 seconds (second, s): 5 s and the inner cylinder is positive.
  • Reverse alternating operation ie, forward rotation 120s - stop 5s - reverse 120s - stop 5s - forward 120s - stop 5s - reverse 120s - stop 5s .
  • the heater is not turned on, and the misjudgment that the drying is automatically ended due to the fact that the drying object does not fall off can be avoided.
  • the inner cylinder rotation speed is increased, the inner cylinder is rotated at a second rotation speed greater than the first rotation speed, and the heater and the fan are simultaneously activated to convey the hot air into the inner cylinder.
  • the drying object is relatively moist, and the drying object is densely rotated, uniformly heated, and the drying speed is fast.
  • the lifting of the inner cylinder speed allows the drying object to maximize contact with the hot air.
  • the second rotational speed cannot be increased too much than the first rotational speed to avoid the phenomenon that the gap between the drying objects is too small, and thus the hot air cannot uniformly pass through the drying object.
  • the second rotation speed may be in the range of 30 rpm to 60 rpm
  • the inner cylinder is alternately operated in forward and reverse directions and the rotation stop ratio is 50 s: 5 s (ie, forward rotation 50 s - stop rotation 5 s - reverse rotation 50 s - stop rotation 5 s - Forward 50s - Stop 5s - Reverse 50s - Stop 5s).
  • the inner cylinder alternately rotates at a second rotational speed and a third rotational speed capable of causing the drying object to form a passage in the middle of the inner cylinder under the action of centrifugal force, wherein the third rotational speed is greater than the second rotational speed.
  • the drying object moves toward the inner cylinder wall due to the centrifugal force becoming larger, and a rotation channel from the front to the rear around the rotation axis of the inner cylinder forms a part of the hot air.
  • the drying object guided to the middle position of the inner cylinder and the drying object at the rear of the inner cylinder are used to dry the partially dried object.
  • the drying object is loosely moved in a direction away from the inner cylinder wall due to the centrifugal force becoming small, so that the drying object close to the inner cylinder wall is heated.
  • the inner cylinder is controlled to rotate at a third rotation speed, and the third rotation speed may be in a range of 90 rpm to 120 rpm, and at the third rotation speed, the drying and drying object is continuously dried. 10 minutes (minute, min), the rotation speed of the inner cylinder returns to the second rotation speed, and the drying and drying object is continuously dried for 5-10 minutes at the second rotation speed, and the rotation speed of the inner cylinder becomes the third rotation speed for 5-10 minutes, the inner cylinder Reverse running.
  • the inner barrel is sequentially controlled to run at a third speed for 5-10 minutes, the forward direction is operated at a second speed for 5-10 minutes, the reverse direction is operated at a third speed for 5-10 minutes, and the reverse direction is operated at a second speed for 5-10 minutes. Min, running at the third speed for 5-10 min.
  • the inner cylinder rotates at a fourth rotation speed capable of reducing the wrinkles of the drying object, wherein the fourth rotation speed is smaller than the third rotation speed.
  • the moisture content of the object to be dried (the amount of water vapor coexisting with 1 kg of dry air in humid air) is relatively low.
  • the fourth rotational speed is in the range of 20 rpm to 30 rpm
  • the inner cylinder is alternately operated in the forward and reverse directions and the transit ratio is 120 s: 5 s (ie, forward rotation 120 s - stop rotation 5 s - reverse rotation 120 s - stop rotation 5 s - forward rotation) 120s - stop 5s - reverse 120s - stop 5s .
  • Moisture content 1000*(m1/m2), where m1 is the mass of water vapor in grams (g); m2 is the mass of dry air in kilograms (Kg); * is the multiplication operator, / The division operator.
  • the inner cylinder may be rotated at a fifth rotation speed greater than the fourth rotation speed, and the heater stops working to stop the delivery of the hot air and deliver the cold air to the inner cylinder to lower the temperature of the drying object.
  • the fifth rotation speed is in the range of 30 rpm to 60 rpm, so that the drying object rotates at a constant speed and uniformly cools.
  • the fifth rotational speed is equal to the second rotational speed.
  • the drying method of this embodiment involves a drying process from the viewpoint of the rotational speed.
  • the drying uniformity of the drying object is improved.
  • different rotational speeds are used in the uniform heating step and the accelerated drying step, so that the hot air is more fully contacted with the clothes in the middle and rear portions of the inner cylinder, thereby improving Drying the overall drying uniformity of the object and improving the drying performance of the washing and drying machine.
  • the step of reducing the speed and wrinkle is performed, and the flatness of the object to be dried can be improved.
  • the drying object with small weight can always maintain the fluffy state at the second rotation speed, and the drying objects in the middle and rear portions of the inner cylinder can be uniformly heated evenly, and the accelerated drying can be omitted.
  • the step or time to accelerate the drying step can be relatively short (eg 3 min).
  • the first comparison step may be performed after the uniform heating step is completed. , comparing the total weight of the dried object with the first preset value.
  • the uniform speed heating step may directly enter the speed reduction wrinkle step; when the total weight of the drying object is greater than or equal to the first preset value, the uniform heating step ends. After that, you can enter the accelerated drying step. That is, the accelerated drying step is selectively performed based on the total weight of the dried object.
  • the drying object with a small weight can always maintain a fluffy state at the second rotation speed, and the speed reduction wrinkle removal step may not be performed.
  • the drying time is reduced and the power consumption is reduced on the basis of ensuring the flatness of the drying object
  • the second comparison step is performed before the step of entering the speed reduction wrinkle to compare the total of the drying objects.
  • Weight and second preset value When the total weight of the drying object is greater than the second preset value, the speed reduction wrinkle step may be performed to ensure the flatness of the drying object before the speed increasing cooling step; when the total weight of the drying object is less than the second preset value When the speed reduction wrinkle removal step can be canceled. That is, from the accelerated drying step or the accelerated drying step, the uniform heating step is directly entered into the elevated cooling step.
  • the low speed dithering step is ended and the next step is entered (the uniform heating step). That is, after the low-speed dithering step is performed for the first predetermined time (shown as t 1 in the drawing), the low-speed dithering step is ended and the uniform heating step is entered.
  • the first preset time can be determined in four ways. The determining step of the first preset time may be performed at any time before the low-speed shaking step. In FIG. 3, taking the first preset time before the washing process starts as an example, and entering the low-speed shaking step after the washing is finished And during the execution of the low-speed jittering step, whether the interval or the continuous judgment reaches the first preset time.
  • the drying object having a small weight grade is more likely to be attached to the inner cylinder wall at a high rotation speed, and is more likely to be attached to the inner cylinder wall, and is difficult to fall off, and the drying object having a smaller weight grade requires a longer divergence time; Large drying objects are at high speed. Due to the large number of drying objects, there is a pressing effect between the drying objects, and it is easy to stick to the inner cylinder wall, which requires longer shaking time; other weight grade drying The probability of the object being attached to the inner cylinder wall is small compared to the drying object having a small weight class or a large weight class, and the time of leaving the inner cylinder wall is shorter than the drying object having a small weight class or a large weight class. Therefore, the first preset time can be determined according to the total weight of the drying object.
  • Figure 4 shows the first preset time required to dry the object for two weight classes (first weight class and second weight class).
  • the total weight of the drying object is detected, and the first preset time is determined according to the sensed weight.
  • This method can be referred to as a drying object weight sensing method, and the first preset time determined by the method can shorten the total time of the drying program operation.
  • the total weight of the drying object and the first preset time may be preset to a one-to-one correspondence, that is, after collecting the total weight of the drying object, the first pre-preparation may be obtained by looking up the table.
  • the time is set; the total weight of the drying object may also form a functional relationship with the first preset time, and the first preset time is obtained by calculation after collecting the total weight of the drying object.
  • the drying objects of different materials are attached to the inner cylinder wall for different time, and the cotton-like drying objects are easily attached to the inner cylinder wall after high-speed rotation; and the chemical fiber type After the high-speed rotation of the drying object, the object can be detached from the inner cylinder without shaking.
  • the first preset time can be determined according to the material of the drying object. For example, at any time before the low-speed dithering step, the material of the drying object is obtained, wherein the material of the drying object can be sensed (the material of the drying object can be sensed by radio frequency identification (RFID) technology) Or the first preset time is determined according to all the materials in the drying object by the material of the drying object selected by the user. This method can be called the drying object material method.
  • RFID radio frequency identification
  • the material of the drying object and the first preset time may be preset to have a one-to-one correspondence, that is, after collecting the material of the drying object, the first preset time may be obtained by looking up the table.
  • the material of the drying object may also form a functional relationship with the first preset time, and the first preset time is obtained by calculation after collecting the material of the drying object.
  • the first preset time may be determined according to an extreme situation, so that all the drying objects of the same level adopt the same time value, and the time value is fixed.
  • the time required to dry all the drying objects is determined as the first predetermined treatment time. This method can be called a fixed time method.
  • the maximum rotation speed of the inner cylinder during operation and the first preset time may be preset to a one-to-one correspondence relationship, that is, the first pre-preparation can be obtained by looking up the table after collecting the maximum rotation speed of the inner cylinder operation.
  • Set the time; the maximum speed during the operation of the inner cylinder may also form a functional relationship with the first preset time, and the first preset time is obtained by calculation after collecting the highest speed during the operation of the inner cylinder.
  • the first preset time may be determined by a combination of the above four methods (drying object weight sensing method, drying object material method, fixed time method, and rotational speed feedback method) alone or in combination.
  • the case of a plurality of combinations is a combination of any two or three of the above four modes, or a combination of the above four modes.
  • the priority can be set for each mode.
  • the first preset time is determined by using the drying object weight sensing method or the drying object material method.
  • the fixed time method is used to determine. The first preset time. Therefore, by the above four methods, the time of the dithering is determined according to the drying condition, and the drying efficiency is improved.
  • drying object weight sensing method the speed feedback method, and the drying object material method
  • One or three of these methods plus a fixed time method a combination of any of the four methods, compared to the method of the jitter time is a fixed value, more specific drying of the drying object, can improve Drying efficiency.
  • the uniform heating step is ended and the next step (accelerated drying step or speed reduction wrinkle step) is performed.
  • the above-described time condition is that after the uniform heating step is performed for the second predetermined time (shown as t 2 in the drawing), the uniform heating step is ended and the next step is performed.
  • the moisture content is gradually reduced to 10% to 30%
  • the drying object in the middle and rear of the inner cylinder is limited by the space, and the hot air that can be contacted is relatively small, while maintaining the current drying object.
  • the total running time of the entire drying program After sensing the total weight of the dried object, combined with the maximum speed that can be achieved when the washing program is dehydrated, the total running time of the entire drying program can be derived. According to the total running time of the program, the time required for the moisture content of the drying object to reach 10% to 30% can be indirectly calculated, which is the second preset time.
  • the second predetermined time determining step may be performed at any time before the uniform heating step, taking the flow shown in FIG. 8 as an example to sense the total weight of the dried object before the washing process starts.
  • the initial second preset time is set according to the total weight of the drying object, and the washing program is entered.
  • the initial second preset time is corrected according to the maximum rotation speed of the inner tub, and the second preset time is obtained.
  • the uniform heating step Ending the washing process to enter the low-speed shaking step, and after the low-speed shaking step ends, entering the uniform heating step, and determining whether the time of the uniform heating step has reached the second preset time is intermittently or continuously during the execution of the uniform heating step. After the time during which the uniform heating step is performed reaches the second predetermined time, the uniform heating step is terminated and the next step is performed (for example, the accelerated drying step).
  • the above temperature condition may be that after the temperature in the inner cylinder reaches a steady state, the uniform heating step is terminated and the next step is performed.
  • the inner cylinder temperature is measured by the first sensor 1 (refer to FIG. 11 and the motor 3 is also shown in FIG. 11), the temperature inside the inner cylinder gradually rises, and then tends to be stable to reach a stable state.
  • the temperature value in the inner cylinder which tends to be stable is a change amount because the ambient temperature is different, the relative humidity is different, and the temperature of the condensing medium is different.
  • the temperature in the inner cylinder reaches a stable state, it indirectly indicates that the heat inside the washing and drying machine or the dryer reaches a dynamic balance, if the inner tub continues to the current speed Rotating, can not improve the drying effect, you can go to the next step.
  • the temperature condition may further be: after the difference between the temperature in the inner cylinder and the water temperature in the outer cylinder reaches a steady state, the uniform heating step is terminated and the next step is performed.
  • the temperature of the water in the outer cylinder is measured by the second sensor 2, and the temperature of the water in the outer cylinder reaches a stable value, but the second sensor 2 is far from the position where the hot air is fed, the response is slow, and the temperature condition may be As an auxiliary control condition.
  • the condition of ending the uniform heating step and proceeding to the next step may also be a combination of the above two temperature conditions or a combination of the above-mentioned time conditions and one or two temperature conditions, that is, the next step may be reached while simultaneously achieving the above plurality of conditions.
  • the uniform heating step may be ended and the next step is performed.
  • condition for ending the accelerated drying step is a time condition or a temperature condition.
  • condition for ending the accelerated drying step may also be a condition for ending the accelerated drying step and entering the step of reducing the wrinkle reduction.
  • the time condition is: after the accelerated drying step is performed for a third preset time (shown as t 3 in the figure), the accelerated drying step is ended and the next step (deceleration wrinkle reduction step) is performed.
  • the rotation speed of the inner cylinder can be lowered to ensure a good flatness of the drying object.
  • the total running time of the entire drying program After sensing the total weight of the drying object, combined with the maximum speed that can be achieved when the washing program is dehydrated, the total running time of the entire drying program can be derived. According to the running time of the program, the time required for the moisture content of the laundry to be less than 10% can be indirectly calculated as the third preset time.
  • the determining step of the third preset time may be performed at any time before the accelerated drying step, taking the flow shown in FIG. 14 as an example, and sensing the total of the drying objects before the washing process starts. Heavy The amount is set according to the total weight of the drying object for the initial third preset time, and enters the washing program, and the initial third preset time is corrected according to the maximum rotation speed of the inner tub during the washing process to obtain the third preset time.
  • the end of the washing process enters the low-speed shaking step, and after the low-speed shaking step ends, the uniform heating step is entered, and after the uniform heating step ends, the accelerated drying step is entered, and the accelerated drying step is determined intermittently or continuously during the execution of the accelerated drying step. Whether the execution time has reached the third preset time, when the uniform heating acceleration drying step execution time reaches the third preset time, the accelerated drying step is ended and the speed reduction wrinkle step is entered.
  • the accelerated drying step it is judged intermittently or continuously whether or not the temperature in the inner cylinder reaches the above temperature condition.
  • the above temperature condition may be: after the temperature in the inner cylinder reaches a steady state, the accelerated drying step is ended and the step of slowing down the wrinkle is entered.
  • the temperature in the inner cylinder may gradually rise after reaching equilibrium in the uniform heating step, and is stabilized again to reach a stable state.
  • the temperature value which tends to be stable is a variation because the ambient temperature is different, the relative humidity is different, and the temperature of the condensing medium is different.
  • the temperature in the inner cylinder reaches a stable state, the heat inside the washing and drying machine or the dryer reaches the dynamic balance indirectly. If the inner tub continues to rotate at the current speed, the drying effect cannot be improved, and the next step can be performed.
  • the temperature condition may further be: after the difference between the temperature in the inner cylinder and the water temperature in the outer cylinder reaches a steady state, the accelerated drying step is ended and the step of reducing the speed wrinkle is entered.
  • the water temperature of the outer cylinder may also reach a stable value, but the sensor is far from the position where the hot air is fed, and the response is sluggish. Therefore, the temperature condition can be used as an auxiliary control condition. After the difference between the temperature inside the inner cylinder and the water temperature in the outer cylinder reaches a steady state, the heat inside the washing and drying machine or the dryer reaches the dynamic balance indirectly. If the inner barrel continues to rotate at the current rotation speed, the drying effect cannot be improved. Go to the next step.
  • the condition for ending the accelerated drying step and entering the slowing and wrinkle reducing step may also be a combination of the above two temperature conditions or a combination of the above-described time conditions and one or two temperature conditions, that is, the above plurality of conditions may be simultaneously achieved.
  • the accelerated drying step is performed for the third predetermined time and when the temperature in the inner cylinder reaches a steady state, the accelerated drying step is ended and the step of reducing the wrinkle is entered.
  • a time condition and two temperature conditions are designed to determine whether to end the accelerated drying step separately or in combination, so that the end timing of the accelerated drying step is set reasonably, and the entire drying process is optimized.
  • condition for ending the speed reduction wrinkle removal step and entering the speed increase cooling step may also adopt a time condition, that is, when the speed reduction wrinkle step is performed for a fixed time, the speed reduction wrinkle removal step is ended and the liter is entered. Speed cooling step.
  • a washer-dryer is provided.
  • the washing and drying machine adopts the drying method for the washing and drying machine of any of the above-mentioned first embodiment.
  • the washing and drying machine can make the hot air more fully contact with the drying objects in the middle and the rear of the inner cylinder, improve the drying uniformity of the whole drying object, and improve the drying performance of the washing and drying machine.
  • the time-condition and the two temperature conditions are respectively determined or combined to determine whether to end the accelerated drying step, so that the end timing of the accelerated drying step is set reasonably, and the entire drying process is optimized.
  • the drying method and the washing and drying machine for the washing and drying machine can make the hot air and the drying object in the middle and the back of the inner cylinder more fully contact, improve the drying uniformity of the whole drying object, and improve the washing and drying machine. Drying performance.

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  • Engineering & Computer Science (AREA)
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Abstract

一种用于洗干一体机的烘干方法以及洗干一体机，其中，烘干方法包括低速抖散步骤以及匀速加热步骤，在低速抖散步骤中，内筒以能够抖散烘干对象的第一转速转动，以及在匀速加热步骤中，内筒以大于第一转速的第二转速转动并开始向内筒中输送热风，洗干一体机采用上述烘干方法，能够提高烘干对象整体的干燥均匀度，提升洗干一体机的烘干性能。

Description

用于洗干一体机的烘干方法及洗干一体机 技术领域
本公开涉及衣物烘干技术领域，例如涉及一种用于洗干一体机的烘干方法及洗干一体机。
背景技术
大容量的洗干一体机可以满足用户烘干大的烘干对象(烘干对象例如是衣物、床单等)和多烘干对象的要求，深受用户喜爱。伴随行业内大容量洗干一体机的不断升级和优化，大容量的洗干一体机已经成为行业发展方向。其中，满足用户对烘干对象的干燥程度的要求成为行业内产品的研究方向和趋势。
发明内容
一种用于洗干一体机的烘干方法解决因内筒中间及后部的烘干对象的干燥程度差而导致烘干对象整体干燥均匀度差的问题。
一种洗干一体机减少了因内筒中间及后部的烘干对象的干燥程度差而导致烘干对象整体干燥均匀度差的问题。
一种用于洗干一体机的烘干方法，包括如下步骤：
低速抖散步骤，内筒以能够抖散烘干对象的第一转速转动；以及
匀速加热步骤，所述内筒以大于所述第一转速的第二转速转动并开始向所述内筒中输送热风。
可选的，在所述低速抖散步骤中，间隔或持续地判断低速抖散步骤的执行时间是否到达第一预设时间，当所述低速抖散步骤执行的时间达到所述第一预设时间后，结束所述低速抖散步骤并进入匀速加热步骤，所述第一预设时间由如下四种方式中的多个确定或由如下第二种、第三种和第四种方式中的任一个确定：
在第一种方式中，所述第一预设时间为预先设定的固定时间；
在第二种方式中，所述第一预设时间根据烘干对象的总重量确定；
在第三种方式中，所述第一预设时间根据内筒运转时的最高转速确定；
在第四种方式中，所述第一预设时间根据烘干对象的材质确定。
可选的，当所述匀速加热步骤执行了第二预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤；当所述匀速加热步骤执行了第二预设时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤；当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤；当所述匀速加热步骤执行了第二预设时间后、以及内筒内的温度达到稳定状态后，结束所述匀速加热步骤；或当所述匀速加热步骤执行了第二预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤。
可选的，所述方法还包括以下步骤：
加速烘干步骤，所述内筒以所述第二转速和能够使所述烘干对象在离心力的作用下在所述内筒中间形成通道的第三转速交替转动，其中，所述第三转速大于所述第二转速。
可选的，在所述加速烘干步骤之后，所述方法还包括：
降速减皱步骤，所述内筒以能够减少所述烘干对象的褶皱的第四转速转动，其中，所述第四转速小于所述第三转速；以及
升速冷却步骤，所述内筒以大于所述第四转速的第五转速转动、停止输送热风并向所述内筒中输送冷风，以降低所述烘干对象的温度。
可选的，当所述加速烘干步骤执行了第三预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水温的差值达到稳定状态后，结束所述加速烘干步骤；
当所述加速烘干步骤执行了第三预设时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤；
当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤；
当所述加速烘干步骤执行了第三预设时间后、以及内筒内的温度达到稳定状态后，结束所述加速烘干步骤；或者
当所述加速烘干步骤执行了第三预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤。
可选的，所述第三预设时间的确定方法为：根据烘干对象的总重量和洗涤程序脱水时能够达到的最高转速推算出烘干对象的含湿量达到低于10％所需要的时间，该时间作为所述第三预设时间。
可选的，在所述低速抖散步骤中，所述第一转速位于20rpm-30rpm的范围内，所述内筒正反交替运转且转停比为120s∶5s，其中，：为比值符号；
在所述匀速加热步骤中，所述第二转速位于30rpm-60rpm的范围内，所述内筒正反交替运转且转停比为50s∶5s；以及
在所述加速烘干步骤中，所述第三转速位于90rpm-120rpm的范围内，所述内筒正反交替运转且所述内筒以所述第三转速和所述第二转速转动的时间比为(5-10)min∶(5-10)min。
可选的，所述加速烘干步骤之前，所述方法还包括：第一比较步骤，其中，所述第一比较步骤包括：
比较所述烘干对象的总重量与第一预设值；
当所述烘干对象的总重量小于所述第一预设值时，所述匀速加热步骤结束后直接进入所述降速减皱步骤；以及
当所述烘干对象的总重量大于或等于所述第一预设值时，所述匀速加热步骤结束后进入所述加速烘干步骤。
可选的，所述降速减皱步骤之前，所述方法还包括：第二比较步骤，其中，所述第二比较步骤包括：
比较所述烘干对象的总重量与第二预设值；
当所述烘干对象的总重量大于所述第二预设值时，在所述升速冷却步骤之前执行所述降速减皱步骤；以及
当所述烘干对象的总重量小于所述第二预设值时，取消执行所述降速减皱步骤。
可选的，在所述降速减皱步骤中：所述第四转速位于20rpm-30rpm的范围内，所述内筒正反交替运转且转停比为120s∶5s；以及
在所述升速冷却步骤中：所述第五转速位于30rpm-60rpm的范围内，所述内筒正反交替运转且转停比为50s∶5s。
一种洗干一体机，采用上述任一项所述的用于洗干一体机的烘干方法。
洗干一体机采用上述用于洗干一体机的烘干方法。因此，该洗干一体机能够使得热风与内筒中间和后部的烘干对象更充分地接触，提高烘干对象整体的干燥均匀度，提升洗干一体机的烘干性能。时间条件和两种温度条件来分别或结合判定是否结束加速烘干步骤，使得加速烘干步骤的结束时机设定的合理，优化了整个烘干过程。
附图说明
图1是相关技术中的用于洗干一体机的烘干方法的原理示意图；
图2本具体实施方式提供的用于洗干一体机的烘干方法的流程示意图；
图3是图2中的烘干方法中结束低速抖散步骤的第一预设时间的确定方法的示意图；
图4是图3中的烘干对象重量感知法的时序示意图；
图5是图3中的烘干对象材质法的时序示意图；
图6是图3中的固定时间法的时序示意图；
图7是图3中的转速反馈法的时序示意图；
图8和图9是图2中的烘干方法中结束匀速加热步骤并进入下一步骤的条件是时间条件时的流程示意图和时序示意图；
图10和图12是图2中的烘干方法中结束匀速加热步骤并进入下一步骤的条件是一种温度条件时的流程示意图和时序示意图；
图11是采用图10中的温度条件时相应的结构示意图；
图13是图2中的烘干方法中结束匀速加热步骤并进入下一步骤的条件是另一种温度条件时的流程示意图；
图14和图15是图2中的烘干方法中结束加速烘干步骤并进入降速减皱步 骤的条件是时间条件时的流程示意图和时序示意图；
图16和图17是图2中的烘干方法中结束加速烘干步骤并进入降速减皱步骤的条件是温度条件时的流程示意图和时序示意图；
图18是图2中的烘干方法中结束加速烘干步骤并进入降速减皱步骤的条件是另一种温度条件时的流程示意图。
图中：
t1：第一预设时间；t2：第二预设时间；t3：第三预设时间；1：第一传感器；2：第二传感器；3：电机。
具体实施方式
下面结合附图并通过具体实施方式来说明以下实施例中的技术方案。
实施例一
参照图1，相关技术中的洗干一体机的烘干原理是：通过加热器(例如一组加热丝)将空气加热；加热后的空气(即热空气)由风机吹入内筒内形成热风，内筒内的烘干对象受热使烘干对象中的水分蒸发成高温高湿的蒸汽；以及在轴流风机形成的负压下，高温高湿的蒸汽被吸入冷凝器中，高温高湿蒸汽在冷凝器中凝结变成冷凝水，冷凝水沿着交换器的外壁流下，冷却后的空气继续循环。相关技术中的烘干过程中，内筒以固定转速、固定的转停比正反转匀速转动，以使烘干对象烘干均匀。随着烘干对象的增加，例如烘干容量超过洗涤容量的一半时，内筒内不同位置的烘干对象的干燥均匀度差，其中，处于内筒中间以及内筒后部(远离热风吹入端的一部分)的烘干对象干燥程度相比处于内筒前部的烘干对象和靠近内筒壁的烘干对象要差，导致烘干对象整体干燥均匀度差的问题。
在本实施例中，提供一种用于洗干一体机的烘干方法，该烘干方法解决了因内筒中间及后部的烘干对象的干燥程度差而导致烘干对象整体干燥均匀度差的问题。
参照图2，该烘干方法在洗涤流程结束后进行，可以包括低速抖散步骤、匀速加热步骤、加速烘干步骤、降速减皱步骤以及升速冷却步骤。
在低速抖散步骤中，内筒以能够抖散烘干对象的第一转速转动，可以避免 出现因烘干对象贴在内筒壁上没有脱落而无法在后续步骤中被烘干的情况。如果内桶完全静止，仅能够使得最高位置的烘干对象因自身重力剥离内筒壁，可以控制内桶以低转速转动，使所有烘干对象依赖自身重力剥离内筒壁。
在烘干初期阶段，内筒可以以第一转速转动，让烘干对象在其自身重力的作用下脱离内筒壁。在本实施例中，第一转速可以位于20转/每分钟(revolutions per minute，rpm)-30rpm的范围内，内筒的转停比可以为120秒(second，s)∶5s并且内筒正反交替运转(即，正转120s-停转5s-反转120s-停转5s-正转120s-停转5s-反转120s-停转5s......)。在低速抖散步骤中，加热器不开启，可以避免由于烘干对象未脱落而造成烘干自动结束的误判断。
在匀速加热步骤中，提高内筒转速，内筒以大于第一转速的第二转速转动，并且同时启动加热器和风机向内筒中输送热风。此时烘干对象比较潮湿，烘干对象密集旋转，均匀受热，烘干速度快。其中，提升内筒转速可使烘干对象最大限度地接触热风。但是第二转速不能比第一转速提升过多，以避免烘干对象之间的间隙过小、进而热风不能均匀地穿过烘干对象的现象。
在本实施例中，第二转速可以位于30rpm-60rpm的范围内，内筒正反交替运转且转停比为50s∶5s(即，正转50s-停转5s-反转50s-停转5s-正转50s-停转5s-反转50s-停转5s......)。
在加速烘干步骤中，内筒以第二转速和能够使烘干对象在离心力的作用下在内筒中间形成通道的第三转速交替转动，其中，第三转速大于第二转速。在内筒以第三转速转动时，烘干对象因离心力变大而向内筒壁移动，在内筒中间围绕内筒的转动轴线形成一由前至后延伸的通道，该通道可将部分热风引导至内筒中间位置的烘干对象以及内筒后部的烘干对象，对该部分烘干对象进行烘干。当内筒以第二转速转动时，烘干对象因离心力变小而沿远离内筒壁的方向移动松散，使得靠近内筒壁的烘干对象受热。
在本实施例中，在进入该加速烘干步骤之后，控制内筒以第三转速转动，第三转速可以位于90rpm-120rpm的范围内，在第三转速下，持续烘干烘干对象5-10分钟(minute，min)，内筒的转速恢复为第二转速，在第二转速下持续烘干烘干对象5-10min，内筒的转速变为以第三转速持续5-10min，内筒正反转运行。即，依次控制内桶正向以第三转速运转5-10min，正向以第二转速运转5-10min，反向以第三转速运转5-10min，反向以第二转速运转5-10 min，正向以第三转速运转5-10min......。
在降速减皱步骤中，内筒以能够减少烘干对象的褶皱的第四转速转动，其中，第四转速小于第三转速。在降速减皱步骤中，烘干对象的含湿量(在湿空气中，与1kg干空气同时并存的水蒸汽量)相对较低。可选的，第四转速位于20rpm-30rpm的范围内，内筒正反交替运转且转停比为120s∶5s(即，正转120s-停转5s-反转120s-停转5s-正转120s-停转5s-反转120s-停转5s......)。含湿量＝1000*(m1/m2)，其中，m1为水蒸气的质量，单位为克(g)；m2为干空气的质量，单位为千克(Kg)；*为乘法运算符，/为除法运算符。
在升速冷却步骤中，烘干对象经过上述烘干过程后，烘干对象的表面温度高，可以对烘干对象进行降温。在升速冷却步骤中，内筒可以以大于第四转速的第五转速转动，加热器停止工作，以停止输送热风并向内筒中输送冷风，以降低烘干对象的温度。可选的，第五转速位于30rpm-60rpm的范围内，使烘干对象匀速密集转动，均匀降温。可选地，第五转速等于第二转速。可选的，内筒正反交替运转且转停比为50s∶5s(即，正转50s-停转5s-反转50s-停转5s-正转50s-停转5s-反转50s-停转5s......)。
本实施例的烘干方法从转速的角度出发，涉及了一套烘干流程。通过变换内筒的转速和转停比(通过控制内筒电机的转速和转停比来实现)，提高烘干对象的烘干均匀度。在经低速抖散步骤保证烘干对象处于抖散状态的基础上，在匀速加热步骤和加速烘干步骤中采用不同的转速，使得热风与内筒中间和后部的衣物更充分地接触，提高烘干对象整体的干燥均匀度，提升洗干一体机的烘干性能。在烘干过程结束后，执行降速减皱步骤，能够提高烘干对象的平整度。
在内筒容积一定的条件下，重量小的烘干对象能够在第二转速下始终保持蓬松状态，内筒中间和后部的烘干对象也能够相对较好地均匀受热，可以省略加速烘干步骤或将加速烘干步骤的时间可相对较短(如3min)。
本实施例中，为了提高烘干效率，在保证烘干效果的基础上减少烘干时间、降低耗电，在进入加速烘干步骤之前，例如，在匀速加热步骤结束后可以进行第一比较步骤，比较烘干对象的总重量与第一预设值。当烘干对象的总重量小于第一预设值时，匀速加热步骤结束后可以直接进入降速减皱步骤；当烘干对象的总重量大于或等于第一预设值时，匀速加热步骤结束后可以进入加速烘干步骤。也就是说，以烘干对象的总重量为依据，选择性地执行加速烘干步骤。
可选的，在内筒容积一定的条件下，重量小的烘干对象能够在第二转速下始终保持蓬松状态，可以不执行降速减皱步骤。
本实施例中，为了提高烘干效率，在保证烘干对象平整度的基础上减少烘干时间、降低耗电，在进入降速减皱步骤之前执行第二比较步骤，比较烘干对象的总重量与第二预设值。当烘干对象的总重量大于第二预设值时，在升速冷却步骤之前可以执行降速减皱步骤来保证烘干对象的平整度；当烘干对象的总重量小于第二预设值时，可以取消执行降速减皱步骤。即，从加速烘干步骤或取消加速烘干步骤时，从匀速加热步骤直接进入升速冷却步骤。
可选的，当符合时间条件时，结束低速抖散步骤并进入下一步骤(匀速加热步骤)。即，当低速抖散步骤执行了第一预设时间(图中以t1示出)后，结束低速抖散步骤并进入匀速加热步骤。参照图3，该第一预设时间可通过四种方式来确定。该第一预设时间的确定步骤可在低速抖散步骤之前的任意时刻进行，在图3中，以在洗涤程序开始前确定第一预设时间为例，在洗涤结束后进入低速抖散步骤，并且在低速抖散步骤的执行过程中，间隔或持续的判断是否到达第一预设时间。
可选地，重量等级小的烘干对象在高转速下由于离心力大、更容易贴在内筒壁上，并且难以脱落，比重量等级小的烘干对象需要更长的抖散时间；重量等级大的烘干对象在高转速下，由于烘干对象数量多，烘干对象之间有挤压作用，也容易贴在内筒壁上，需要更长的抖散时间；其他重量等级的烘干对象贴在内筒壁上的概率相对重量等级小或重量等级大的烘干对象小，脱离内筒壁的时间相对重量等级小或重量等级大的烘干对象短。因此，第一预设时间可根据烘干对象的总重量来确定。图4展示了两种重量等级(第一种重量等级和第二种重量等级)的烘干对象所需的第一预设时间。
可选的，在低速抖散步骤之前的任意时刻，检测烘干对象的总重量，根据该感测的重量来确定第一预设时间。该方式可称为烘干对象重量感知法，由该方式确定出的第一预设时间可以缩短烘干程序运行的总时间。
可选的，烘干对象的总重量与第一预设时间之间可以预先设定为一一对应的关系，也就是说，在采集烘干对象的总重量后可通过查表获得第一预设时间；烘干对象的总重量还可与第一预设时间之间形成函数关系，在采集烘干对象的总重量后通过计算获得第一预设时间。
可选的地，参照图5，不同材质的烘干对象贴在内筒壁上的时间也不同，棉质类的烘干对象在高速旋转后，容易附着在内筒壁上；而化纤类的烘干对象在高速旋转后，不用抖散，即可自行脱离内筒。第一预设时间可根据烘干对象的材质来确定。例如，在低速抖散步骤之前的任意时刻，获得烘干对象的材质，其中，可感测烘干对象的材质(可通过射频识别(Radio Frequency Identification，RFID)技术感测烘干对象的材质)或通过用户自己选择的烘干对象的材质，根据烘干对象中的所有材质来确定第一预设时间。该方式可称为烘干对象材质法。
可选的，烘干对象的材质与第一预设时间之间可以预先设定为一一对应的关系，也就是说，在采集烘干对象的材质后可通过查表获得第一预设时间；烘干对象的材质还可与第一预设时间之间形成函数关系，在采集烘干对象的材质后通过计算获得第一预设时间。
可选地，参照图6，为了能够将烘干对象抖散，可根据极端的情况确定第一预设时间，使所有等级的烘干对象都采用同一时间值，该时间值是固定不变的。例如，在将烘干对象塞满内桶的情况下，烘干所有烘干对象所需的时间确定为第一预设治时间。该方式可称为固定时间法。
可选地，参照图7，不同的转速、不同的离心力大小，烘干对象被抖散的时间也不相同。在能够检测内筒运转时的最高转速的情况下，根据内筒达到的不同的最高转速来确定不同的第一预设时间。该方式可称为转速反馈法。
其中，内筒运转时的最高转速与第一预设时间之间可以预先设定为一一对应的关系，也就是说，在采集内筒运转时的最高转速后可通过查表获得第一预设时间；内筒运转时的最高转速还可与第一预设时间之间形成函数关系，在采集内筒运转时的最高转速后通过计算获得第一预设时间。
综上，第一预设时间可由上述四种方式(烘干对象重量感知法、烘干对象材质法、固定时间法以及转速反馈法)单独或多个结合确定。多个结合的情况为上述四种方式中的任意两种或三种方式结合、或上述四种方式结合。其中，可以为每种方式设定优先级，例如，优先采用烘干对象重量感知法或烘干对象材质法确定第一预设时间，当无法确定第一预设时间时，采用固定时间法确定第一预设时间。由此，通过上述四种方式，根据烘干工况来确定抖散的时间，提高了烘干效率。
可选地，依据烘干对象重量感知法、转速反馈法、烘干对象材质法中的任 一种或者这三种方式加上固定时间法共四种方式中的任意多个的组合，相比较于抖散时间为固定值的方式，更加有针对性对烘干对象进行烘干，可提高烘干效率。
可选的，当满足时间条件或温度条件时，结束匀速加热步骤并进入下一步骤(加速烘干步骤或降速减皱步骤)。
可选地，参照图8和图9，上述时间条件为：当匀速加热步骤执行了第二预设时间(图中以t2示出)后，结束匀速加热步骤并进入下一步骤。其中，在烘干对象在含湿量逐渐降低为10％一30％后，由于内筒中部和后部的烘干对象受空间的限制，能够接触的热风相对较少，在保持当前烘干对象分布的情况下，难以将烘干对象上的水分析出。如果在此基础上还要提高烘干效率，可以调整烘干对象的分布，即进入加速烘干步骤。
在感测烘干对象的总重量后，结合洗涤程序脱水时能够达到的最高转速，可推算出整个烘干程序的运行总时间。根据程序的运行总时间可间接推算出烘干对象的含湿量达到10％一30％需要的时间，该时间即为第二预设时间。
参照图8和图9，第二预设时间的确定步骤可在匀速加热步骤之前的任意时刻进行，以图8中示出的流程为例，在洗涤程序开始前感测烘干对象的总重量，根据烘干对象的总重量设定初始第二预设时间，进入洗涤程序，在洗涤程序中根据内桶运转时的最高转速修正初始第二预设时间，得到第二预设时间。
结束洗涤程序进入低速抖散步骤，低速抖散步骤结束后进入匀速加热步骤，在匀速加热步骤的执行过程中间隔地或连续地判断匀速加热步骤执行的时间是否已经到达第二预设时间，当匀速加热步骤执行的时间达到第二预设时间后，结束匀速加热步骤并进入下一步骤(例如加速烘干步骤)。
可选地，参照图10至图12，在执行匀速加热步骤的过程中，间断地或连续地判断是否达到上述温度条件。上述温度条件可为：当内筒内的温度达到稳定状态后，结束匀速加热步骤并进入下一步骤。可选的，匀速加热步骤中，采用第一传感器1(参照图11，图11中还示出电机3)测量内筒温度，内筒内的温度逐渐上升，之后趋于稳定，达到稳定状态。
其中，因为环境温度不同、相对湿度不同以及冷凝介质的温度不同等，趋于稳定的内筒内的温度值是一个变化量。当内筒内的温度达到稳定后，间接地说明洗干一体机或干衣机内部的热量达到动态平衡，如果内桶继续以当前转速 转动，无法提高烘干的效果，可以进入下一步骤。
可选地，参照图13，上述温度条件还可为：当内筒内的温度和外筒中水温的差值达到稳定状态后，结束匀速加热步骤并进入下一步骤。可选的，匀速加热步骤中，采用第二传感器2测量外筒中水的温度，外筒中水的温度达到一个稳定值，但是第二传感器2距离热风送入的位置远，响应迟缓，温度条件可作为辅助控制条件。
内筒内的温度和外筒中水温的差值达到稳定状态后，间接地说明洗干一体机或干衣机内部的热量达到动态平衡，如果内桶继续以当前转速旋转，无法提高烘干的效果，可以进入下一步骤。
结束匀速加热步骤并进入下一步骤的条件也可是上述两种温度条件的结合或者上述时间条件和一种或两种温度条件的结合，即，可以在同时达到上述多个条件时进入下一步骤。例如，当匀速加热步骤执行了第二预设时间后并当内筒内的温度达到稳定状态后，可以结束匀速加热步骤并进入下一步骤。
可选的，结束加速烘干步骤的条件是时间条件或温度条件。在本实施例中，因加速烘干步骤之后可能还有其他步骤，结束加速烘干步骤的条件也可以是结束加速烘干步骤并进入降速减皱步骤的条件。
可选地，参照图14和图15，在执行加速烘干步骤的过程中，间断地或连续地判断加速烘干步骤的执行时间是否达到上述时间条件。可选的，上述时间条件为：当加速烘干步骤执行了第三预设时间(图中以t3示出)后，结束加速烘干步骤并进入下一步骤(降速减皱步骤)。
其中，当烘干对象的含湿量逐渐降低小于10％后，烘干对象的含湿量低，距离烘干的时间短。如果内桶继续在相对较高的转速下运行，由于离心力和烘干对象之间的挤压力，在高温的状态下，烘干对象的褶皱会越来越多，平整度变差。所以，在此情况下，可以降低内筒的转速，保证烘干对象良好的平整度。
感测烘干对象的总重量后，结合洗涤程序脱水时能够达到的最高转速，可推算出整个烘干程序的运行总时间。根据程序运行的时间可间接推算出衣物含湿量小于10％需要的时间，该时间作为第三预设时间。
参照图14和图15，第三预设时间的确定步骤可在加速烘干步骤之前的任意时刻进行，以图14中示出的流程为例，在洗涤程序开始前感测烘干对象的总重 量，根据烘干对象的总重量设定初始第三预设时间，进入洗涤程序，在洗涤程序中根据内桶运转时的最高转速修正初始第三预设时间，得到第三预设时间。结束洗涤程序进入低速抖散步骤，低速抖散步骤结束后进入匀速加热步骤，匀速加热步骤结束后进入加速烘干步骤，在加速烘干步骤的执行过程中间隔地或连续地判断加速烘干步骤的执行时间是否已经到达第三预设时间，当匀速加热加速烘干步骤执行时间到达第三预设时间后，结束加速烘干步骤并进入降速减皱步骤。
可选地，参照图16和图17，在执行加速烘干步骤的过程中，间断地或连续地判断内筒内的温度是否达到上述温度条件。上述温度条件可为：当内筒内的温度达到稳定状态后，结束加速烘干步骤并进入降速减皱步骤。
可选的，加速烘干步骤中，内筒内的温度在匀速加热步骤中达到平衡后可能逐渐上升，并再次趋于稳定，达到稳定状态。其中，因为环境温度不同、相对湿度不同以及冷凝介质的温度不同等，趋于稳定的该温度值是一个变化量。当内筒内的温度达到稳定后，间接地说明洗干一体机或干衣机内部的热量达到动态平衡，如果内桶继续以当前转速旋转，无法提高烘干的效果，可以进入下一步骤。
可选地，参照图18，上述温度条件还可为：当内筒内的温度和外筒中水温的差值达到稳定状态后，结束加速烘干步骤并进入降速减皱步骤。可选的，加速烘干步骤中，外筒水温同样可能达到一个稳定值，但是传感器距离热风送入的位置较远，响应迟缓，因此，温度条件可作为辅助控制条件。内筒内的温度和外筒中水温的差值达到稳定状态后，间接地说明洗干一体机或干衣机内部的热量达到动态平衡，如果内桶继续以当前转速旋转，无法提高烘干的效果，可以进入下一步骤。
结束加速烘干步骤并进入降速减皱步骤的条件也可以是上述两种温度条件的结合或者上述时间条件和一种或两种温度条件的结合，即，可以同时达到上述多个条件。例如，当加速烘干步骤执行了第三预设时间并当内筒内的温度达到稳定状态时，结束加速烘干步骤并进入降速减皱步骤。
在本实施例中，因设计了一种时间条件和两种温度条件来分别或结合判定是否结束加速烘干步骤，使得加速烘干步骤的结束时机设定的合理，优化整个烘干过程。
可选的，结束降速减皱步骤并进入升速冷却步骤的条件也可采用时间条件，也就是说，当降速减皱步骤执行了一固定时间后，结束降速减皱步骤并进入升速冷却步骤。
实施例二
在本实施例中，提供一种洗干一体机。该洗干一体机采用上述实施例一中任一用于洗干一体机的烘干方法。该洗干一体机能够使得热风与内筒中间和后部的烘干对象更充分地接触，提高烘干对象整体的干燥均匀度，提升洗干一体机的烘干性能。
通过时间条件和两种温度条件分别或结合判定是否结束加速烘干步骤，使得加速烘干步骤的结束时机设定的合理，优化了整个烘干过程。
工业实用性
用于洗干一体机的烘干方法以及洗干一体机，能够使得热风与内筒中间和后部的烘干对象更充分地接触，提高烘干对象整体的干燥均匀度，提升洗干一体机的烘干性能。

Claims (37)

  1. 一种用于洗干一体机的烘干方法，包括如下步骤：
    低速抖散步骤，内筒以能够抖散烘干对象的第一转速转动；以及
    匀速加热步骤，所述内筒以大于所述第一转速的第二转速转动并开始向所述内筒中输送热风。
  2. 根据权利要求1所述的方法，其中，在所述低速抖散步骤中，间隔或持续地判断低速抖散步骤的执行时间是否到达第一预设时间，当所述低速抖散步骤执行的时间达到所述第一预设时间后，结束所述低速抖散步骤并进入匀速加热步骤，所述第一预设时间由如下四种方式中的多个确定或由如下第二种、第三种和第四种方式中的任一个确定：
    在第一种方式中，所述第一预设时间为预先设定的固定时间；
    在第二种方式中，所述第一预设时间根据烘干对象的总重量确定；
    在第三种方式中，所述第一预设时间根据内筒运转时的最高转速确定；
    在第四种方式中，所述第一预设时间根据烘干对象的材质确定。
  3. 根据权利要求2所述的方法，其中，
    在所述第二种方式中，预先设定所述烘干对象的总重量与所述第一预设时间之间的一一对应关系，或者所述烘干对象的总重量与所述第一预设时间之间形成函数关系。
  4. 根据权利要求2所述的方法，其中，
    在所述第三种方式中，预先设定所述内筒运转时的最高转速与所述第一预设时间之间的一一对应关系，或者所述内筒运转时的最高转速与所述第一预设时间之间形成函数关系。
  5. 根据权利要求2所述的方法，其中，
    在所述第四种方式中，预先设定所述烘干对象的材质与所述第一预设时间 之间的一一对应关系，或者所述烘干对象的材质与所述第一预设时间之间形成函数关系。
  6. 根据权利要求2所述的方法，其中，
    在所述低速抖散步骤中，所述第一转速位于20rpm-30rpm的范围内，所述内筒正反交替运转且转停比为120s∶5s；以及
    在所述匀速加热步骤中，所述第二转速位于30rpm-60rpm的范围内，所述内筒正反交替运转且转停比为50s∶5s。
  7. 根据权利要求3-6中任一项所述的方法，在所述匀速加热步骤之后，所述方法还包括：
    加速烘干步骤，所述内筒以所述第二转速和能够使所述烘干对象在离心力的作用下在所述内筒中间形成通道的第三转速交替转动，其中，所述第三转速大于所述第二转速；
    降速减皱步骤，所述内筒以能够减少所述烘干对象的褶皱的第四转速转动，其中，所述第四转速小于所述第三转速；以及
    升速冷却步骤，所述内筒以大于所述第四转速的第五转速转动、停止输送热风并向所述内筒中输送冷风，以降低所述烘干对象的温度。
  8. 根据权利要求7所述的方法，还包括：
    位于所述加速烘干步骤之前的第一比较步骤和位于所述降速减皱步骤之前的第二比较步骤；
    所述第一比较步骤为：
    比较所述烘干对象的总重量与第一预设值；
    当所述烘干对象的总重量小于所述第一预设值时，所述匀速加热步骤结束后直接进入所述降速减皱步骤；
    当所述烘干对象的总重量大于或等于所述第一预设值时，所述匀速加热步骤结束后进入所述加速烘干步骤；
    所述第二比较步骤为：
    比较所述烘干对象的总重量与第二预设值；
    当所述烘干对象的总重量大于所述第二预设值时，在所述升速冷却步骤之前执行所述降速减皱步骤；
    当所述烘干对象的总重量小于所述第二预设值时，取消执行所述降速减皱步骤。
  9. 根据权利要求7所述的方法，其中，
    当所述匀速加热步骤执行了第二预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；当所述匀速加热步骤执行了第二预设时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；当所述匀速加热步骤执行了第二预设时间后、以及内筒内的温度达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；或当所述匀速加热步骤执行了第二预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；
    当所述加速烘干步骤执行了第三预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当所述加速烘干步骤执行了第三预设 时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当所述加速烘干步骤执行了第三预设时间后、以及内筒内的温度达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；或当所述加速烘干步骤执行了第三预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤。
  10. 根据权利要求7所述的方法，其中，
    在所述加速烘干步骤中：所述第三转速位于90rpm-120rpm的范围内，所述内筒正反交替运转且所述内筒以所述第三转速和所述第二转速转动的时间比为5-10min∶5-10min；
    在所述降速减皱步骤中：所述第四转速位于20rpm-30rpm的范围内，所述内筒正反交替运转且转停比为120s∶5s；以及
    在所述升速冷却步骤中：所述第五转速位于30rpm-60rpm的范围内，所述内筒正反交替运转且转停比为50s∶5s。
  11. 根据权利要求1所述的方法，其中，当所述匀速加热步骤执行了第二预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤；当所述匀速加热步骤执行了第二预设时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤；当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤；当所述匀速加热步 骤执行了第二预设时间后、以及内筒内的温度达到稳定状态后，结束所述匀速加热步骤；或当所述匀速加热步骤执行了第二预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤。
  12. 根据权利要求11所述的方法，其中，
    所述第二预设时间的确定方法为：根据烘干对象的总重量和洗涤程序脱水时内桶能够达到的最高转速推算出烘干对象的含湿量达到10％-30％所需要的时间，该时间作为所述第二预设时间。
  13. 根据权利要求11所述的方法，其中，
    在所述低速抖散步骤中：所述第一转速位于20rpm-30rpm的范围内，所述内筒正反交替运转且转停比为120s∶5s；以及
    在所述匀速加热步骤中：所述第二转速位于30rpm-60rpm的范围内，所述内筒正反交替运转且转停比为50s∶5s。
  14. 根据权利要求11所述的方法，在所述匀速加热步骤之后，所述方法还包括：
    加速烘干步骤，所述内筒以所述第二转速和能够使所述烘干对象在离心力的作用下在所述内筒中间形成通道的第三转速交替转动，其中，所述第三转速大于所述第二转速；以及
    降速减皱步骤，所述内筒以能够减少所述烘干对象的褶皱的第四转速转动，其中，所述第四转速小于所述第三转速。
  15. 根据权利要求13所述的方法，在所述加速烘干步骤之前，所述方法还包括：第一比较步骤，其中，所述第一比较步骤包括：
    比较所述烘干对象的总重量与第一预设值；
    当所述烘干对象的总重量小于所述第一预设值时，所述匀速加热步骤结束 后直接进入所述降速减皱步骤；以及
    当所述烘干对象的总重量大于或等于所述第一预设值时，所述匀速加热步骤结束后进入所述加速烘干步骤。
  16. 根据权利要求14所述的方法，其中，
    当所述低速抖散步骤执行了第一预设时间后，结束所述低速抖散步骤并进入下一步骤；
    当所述加速烘干步骤执行了第三预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当所述加速烘干步骤执行了第三预设时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当所述加速烘干步骤执行了第三预设时间后、以及内筒内的温度达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；或当所述加速烘干步骤执行了第三预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤。
  17. 根据权利要求15所述的方法，其中，
    所述第一预设时间由如下四种方式中的任一中确定或如下四种方式中的多个确定：
    在第一种方式中，所述第一预设时间为预先设定的固定时间；
    在第二种方式中，所述第一预设时间根据烘干对象的总重量确定；
    在第三种方式中，所述第一预设时间根据内筒运转时的最高转速确定；以 及
    在第四种方式中，所述第一预设时间根据烘干对象的材质确定。
  18. 根据权利要求14所述的方法，其中，
    在所述加速烘干步骤中：所述第三转速位于90rpm-120rpm的范围内，所述内筒正反交替运转且所述内筒以所述第三转速和所述第二转速转动的时间比为(5-10)min∶(5-10)min，其中，：为比值符号；
    在所述降速减皱步骤中：所述第四转速位于20rpm-30rpm的范围内，所述内筒正反交替运转且转停比为120s∶5s。
  19. 根据权利要求1所述的方法，还包括以下步骤：
    加速烘干步骤，所述内筒以所述第二转速和能够使所述烘干对象在离心力的作用下在所述内筒中间形成通道的第三转速交替转动，其中，所述第三转速大于所述第二转速。
  20. 根据权利要求19所述的方法，在所述加速烘干步骤之后，所述方法还包括：
    降速减皱步骤，所述内筒以能够减少所述烘干对象的褶皱的第四转速转动，其中，所述第四转速小于所述第三转速；以及
    升速冷却步骤，所述内筒以大于所述第四转速的第五转速转动、停止输送热风并向所述内筒中输送冷风，以降低所述烘干对象的温度。
  21. 根据权利要求20所述的方法，在所述加速烘干步骤之前，所述方法还包括：第一比较步骤，其中，所述第一比较步骤包括：
    比较所述烘干对象的总重量与第一预设值；
    当所述烘干对象的总重量小于所述第一预设值时，所述匀速加热步骤结束后直接进入所述降速减皱步骤；以及
    当所述烘干对象的总重量大于或等于所述第一预设值时，所述匀速加热步骤结束后进入所述加速烘干步骤。
  22. 根据权利要求20所述的方法，在所述降速减皱步骤之前，所述方法还包括：第二比较步骤，其中，所述第二比较步骤包括：
    比较所述烘干对象的总重量与第二预设值；
    当所述烘干对象的总重量大于所述第二预设值时，在所述升速冷却步骤之前执行所述降速减皱步骤；以及
    当所述烘干对象的总重量小于所述第二预设值时，取消执行所述降速减皱步骤。
  23. 根据权利要求19-22中任一项所述的方法，其中，
    当所述低速抖散步骤执行了第一预设时间后，结束所述低速抖散步骤并进入下一步骤；
    当所述匀速加热步骤执行了第二预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；当所述匀速加热步骤执行了第二预设时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；当所述匀速加热步骤执行了第二预设时间后、以及内筒内的温度达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；或当所述匀速加热步骤执行了第二预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；
    当所述加速烘干步骤执行了第三预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当所述加速烘干步骤执行了第三预设时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；当所述加速烘干步骤执行了第三预设时间后、以及内筒内的温度达到稳定状态后，结束所述加速烘干步骤并进入下一步骤；或当所述加速烘干步骤执行了第三预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤并进入下一步骤。
  24. 根据权利要求23所述的方法，其中，
    所述第一预设时间由如下四种方式中的任一个确定或如下四种方式中的多个确定：
    在第一种方式中，所述第一预设时间为预先设定的固定时间；
    在第二种方式中，所述第一预设时间根据烘干对象的总重量确定；
    在第三种方式中，所述第一预设时间根据内筒运转时的最高转速确定；以及
    在第四种方式中，所述第一预设时间根据烘干对象的材质确定。
  25. 根据权利要求23所述的方法，其中，
    所述第二预设时间的确定方法为：根据烘干对象的总重量和洗涤程序脱水时能够达到的最高转速推算出烘干对象的含湿量达到10％-30％所需要的时间，该时间作为所述第二预设时间；以及
    所述第三预设时间的确定方法为：根据烘干对象的总重量和洗涤程序脱水时能够达到的最高转速推算出烘干对象的含湿量达到低于10％所需要的时间，该时间作为所述第三预设时间。
  26. 根据权利要求20所述的方法，其中，
    在所述低速抖散步骤中：所述第一转速位于20rpm-30rpm的范围内；
    在所述匀速加热步骤中：所述第二转速位于30rpm-60rpm的范围内；
    在所述加速烘干步骤中：所述第三转速位于90rpm-120rpm的范围内；
    在所述降速减皱步骤中：所述第四转速位于20rpm-30rpm的范围内；以及
    在所述升速冷却步骤中：所述第五转速位于30rpm-60rpm的范围内。
  27. 根据权利要求20或26所述的方法，其中，
    在所述低速抖散步骤中：所述内筒正反交替运转且转停比为120s∶5s；
    在所述匀速加热步骤中：所述内筒正反交替运转且转停比为50s∶5s；
    在所述加速烘干步骤中：所述内筒正反交替运转且所述内筒以所述第三转速和所述第二转速转动的时间比为(5-10)min∶(5-10)min，其中，：为比值符号；
    在所述降速减皱步骤中：所述内筒正反交替运转且转停比为120s∶5s；以及
    在所述升速冷却步骤中：所述内筒正反交替运转且转停比为50s∶5s。
  28. 根据权利要求19所述的方法，其中，
    当所述加速烘干步骤执行了第三预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水温的差值达到稳定状态后，结束所述加速烘干步骤；
    当所述加速烘干步骤执行了第三预设时间后、内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结 束所述加速烘干步骤；
    当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤；
    当所述加速烘干步骤执行了第三预设时间后、以及内筒内的温度达到稳定状态后，结束所述加速烘干步骤；或者
    当所述加速烘干步骤执行了第三预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述加速烘干步骤。
  29. 根据权利要求28所述的方法，其中，所述第三预设时间的确定方法为：根据烘干对象的总重量和洗涤程序脱水时能够达到的最高转速推算出烘干对象的含湿量达到低于10％所需要的时间，该时间作为所述第三预设时间。
  30. 根据权利要求28所述的方法，其中，
    在所述低速抖散步骤中，所述第一转速位于20rpm-30rpm的范围内，所述内筒正反交替运转且转停比为120s∶5s，其中，：为比值符号；
    在所述匀速加热步骤中，所述第二转速位于30rpm-60rpm的范围内，所述内筒正反交替运转且转停比为50s∶5s；以及
    在所述加速烘干步骤中，所述第三转速位于90rpm-120rpm的范围内，所述内筒正反交替运转且所述内筒以所述第三转速和所述第二转速转动的时间比为(5-10)min∶(5-10)min。
  31. 根据权利要求28-30所述的方法，在所述加速烘干步骤之后，所述方法还包括：
    降速减皱步骤，所述内筒以能够减少所述烘干对象的褶皱的第四转速转动，其中，所述第四转速小于所述第三转速；以及
    升速冷却步骤，所述内筒以大于所述第四转速的第五转速转动、停止输送 热风并向所述内筒中输送冷风，以降低所述烘干对象的温度。
  32. 根据权利要求31所述的方法，所述加速烘干步骤之前，所述方法还包括：第一比较步骤，其中，所述第一比较步骤包括：
    比较所述烘干对象的总重量与第一预设值；
    当所述烘干对象的总重量小于所述第一预设值时，所述匀速加热步骤结束后直接进入所述降速减皱步骤；以及
    当所述烘干对象的总重量大于或等于所述第一预设值时，所述匀速加热步骤结束后进入所述加速烘干步骤。
  33. 根据权利要求31所述的方法，所述降速减皱步骤之前，所述方法还包括：第二比较步骤，其中，所述第二比较步骤包括：
    比较所述烘干对象的总重量与第二预设值；
    当所述烘干对象的总重量大于所述第二预设值时，在所述升速冷却步骤之前执行所述降速减皱步骤；以及
    当所述烘干对象的总重量小于所述第二预设值时，取消执行所述降速减皱步骤。
  34. 根据权利要求28所述的方法，其中，
    当所述低速抖散步骤执行了第一预设时间后，结束所述低速抖散步骤并进入下一步骤。
  35. 根据权利要求28所述的方法，其中，
    当所述匀速加热步骤执行了第二预设时间后、当内筒内的温度达到稳定状态后、或当所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；
    当所述匀速加热步骤执行了第二预设时间后、内筒内的温度达到稳定状态 后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；当内筒内的温度达到稳定状态后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；当所述匀速加热步骤执行了第二预设时间后、以及内筒内的温度达到稳定状态后，结束所述匀速加热步骤并进入下一步骤；或当所述匀速加热步骤执行了第二预设时间后、以及所述内筒内的温度和所述外筒中水的温度的差值达到稳定状态后，结束所述匀速加热步骤并进入下一步骤。
  36. 根据权利要求31所述的方法，其中，
    在所述降速减皱步骤中：所述第四转速位于20rpm-30rpm的范围内，所述内筒正反交替运转且转停比为120s∶5s；以及
    在所述升速冷却步骤中：所述第五转速位于30rpm-60rpm的范围内，所述内筒正反交替运转且转停比为50s∶5s。
  37. 一种洗干一体机，采用权利要求1-36中任一项所述的用于洗干一体机的烘干方法。
PCT/CN2017/097162 2016-08-12 2017-08-11 用于洗干一体机的烘干方法及洗干一体机 Ceased WO2018028688A1 (zh)

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