WO2019041970A1 - 衣物烘干判断方法和装置 - Google Patents

衣物烘干判断方法和装置 Download PDF

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Publication number
WO2019041970A1
WO2019041970A1 PCT/CN2018/091361 CN2018091361W WO2019041970A1 WO 2019041970 A1 WO2019041970 A1 WO 2019041970A1 CN 2018091361 W CN2018091361 W CN 2018091361W WO 2019041970 A1 WO2019041970 A1 WO 2019041970A1
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Prior art keywords
temperature
inlet
change rate
air
drying
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PCT/CN2018/091361
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English (en)
French (fr)
Inventor
郑明星
杨洪永
刘建
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格力电器（武汉）有限公司
珠海格力电器股份有限公司
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Application filed by 格力电器（武汉）有限公司, 珠海格力电器股份有限公司 filed Critical 格力电器（武汉）有限公司
Priority to US16/641,511 priority Critical patent/US11236462B2/en
Priority to EP18849960.2A priority patent/EP3660205B1/en
Publication of WO2019041970A1 publication Critical patent/WO2019041970A1/zh

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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
    • 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
    • D06F2103/08—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
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/26—Condition of the drying air, e.g. air humidity or temperature

Definitions

  • the present application belongs to the technical field of laundry drying, and in particular relates to a method and a device for judging laundry drying.
  • the technical problem to be solved by the present application is to provide a method and a device for judging laundry drying, which can reduce the judgment factors affecting the drying of the laundry, improve the accuracy of the laundry drying judgment, and reduce the drying cost of the laundry.
  • a laundry drying determination method including:
  • the step of calculating the rate of change of the inlet air temperature of the air inlet of the drum further comprises:
  • Th is the stop heating temperature of the incoming air
  • Tl is the starting heating temperature of the incoming air
  • the step of calculating the rate of change of the inlet air temperature of the air inlet of the drum comprises:
  • t is the time taken for the inlet air temperature to rise from Tl to Th.
  • the step of determining that the laundry drying is completed includes:
  • the temperature of the inlet air is lowered from Th to T1, and then the temperature is raised from T1 to Th for one cycle, and the temperature rise time t1, t2, t3, ... tn in each cycle is determined, and the temperature change rate of each cycle is calculated.
  • the temperature change rate kn of each cycle is determined, and if kn ⁇ ks, it is determined that the laundry has dried, and the step of ending the drying comprises:
  • the temperature change rate kn in the continuous m cycles is detected. If the temperature change rate kn in the continuous m cycles satisfies kn ⁇ ks, it is judged that the clothes have dried, wherein m ⁇ 3.
  • the preset temperature change rate ks is one of the following: an ironing state drying temperature change rate, a wear state drying temperature change rate, and an extremely dry state drying temperature change rate.
  • a laundry drying judging device comprising:
  • a temperature detecting unit configured to obtain an inlet air temperature of the air inlet of the drum
  • a calculating unit configured to calculate a rate of change of the inlet air temperature according to the inlet air temperature detected by the temperature detecting unit;
  • the judging unit is configured to compare the inlet air temperature change rate with the preset temperature change rate ks, and determine whether the laundry is finished drying according to the comparison result.
  • the laundry drying determining device further comprises a heating control unit, wherein the heating control unit is configured to control the heater to stop heating the intake air when the inlet air temperature Tin ⁇ Th of the drum air inlet; and the inlet air temperature at the air inlet of the drum When Tin ⁇ Tl, the control heater starts to heat the intake air.
  • the heating control unit is configured to control the heater to stop heating the intake air when the inlet air temperature Tin ⁇ Th of the drum air inlet; and the inlet air temperature at the air inlet of the drum When Tin ⁇ Tl, the control heater starts to heat the intake air.
  • the laundry drying determining device further includes a memory in which the preset temperature change rate ks is stored, and the determining unit acquires the preset temperature change rate ks from the memory.
  • the laundry drying determination method comprises: obtaining an inlet air temperature of the air inlet of the drum; calculating a rate of change of the inlet air temperature of the air inlet of the drum; and determining a relationship between the rate of change of the inlet air temperature and the preset temperature change rate ks When the condition is met, it is judged that the laundry is dried.
  • the laundry drying judging method of the present application only needs to utilize the judgment factor of the inlet air temperature of the drum air inlet, and then judges whether the laundry is dried according to the relationship between the inlet air temperature change rate and the preset temperature change rate ks.
  • Figure 1 is a schematic structural view of a clothes drying device
  • FIG. 2 is a flowchart of a laundry drying determination method according to an embodiment of the present application.
  • Figure 3 is a schematic diagram of drying and dehumidification of the clothes drying device
  • Figure 4 is a graph showing the change in the quality of the laundry during the drying of the laundry
  • Figure 5 is a graph showing changes in moisture content of the wet air after passing through the drum during drying of the laundry
  • Figure 6 is a graph showing changes in the moisture content of the moist air after heat condensation in the drying process of the laundry
  • Figure 7 is a heating control diagram during drying of the laundry
  • Fig. 8 is a structural schematic view of the laundry drying judging device of the embodiment of the present application.
  • the clothes drying device applied in the present application includes a casing 1 , a drain hose 2 , an outer cylinder 3 , an inner cylinder 4 , an inlet air temperature sensor 5 , an upper air duct 6 , a heating tube 7 , and a fan 8 .
  • Each component is disposed in the chassis 1.
  • the inner cylinder 4 and the outer cylinder 3 are collectively referred to as a drum, the inner cylinder 4 is sleeved in the outer cylinder 3, the air inlet of the outer cylinder 3 is connected to the air outlet of the upper air duct 6, and the air inlet (roller air inlet) of the outer cylinder 3 is provided with
  • the intake air temperature sensor 5 is provided with a heating pipe 7 and a fan 8 in the upper duct 6, and a water inlet valve 9 is provided at a position where the upper duct 6 and the rear duct 10 intersect.
  • the drain hose 2 is disposed at the bottom of the outer cylinder 3, the drain hose 2 is connected to the drain pump 11, and the drain port of the drain pump 11 is connected to the drain pipe 12.
  • the fan 8 rotates to blow the low temperature micro-wet air to the heating pipe 7, and the heating pipe 7 heats the air, and then the high-temperature dried air enters through the upper air duct 6.
  • the high-temperature dried air passes through the wet clothes in the inner cylinder 4 to evaporate the moisture in the wet clothes, the high-temperature dry air becomes medium-temperature humid air, and the medium-temperature humid air enters the rear air passage 10, at which time the water inlet valve 9 is opened.
  • the condensed water enters the rear air duct 10, where the medium temperature humid air and the condensed water exchange heat, and the water vapor in the medium temperature humid air condenses into water, flows to the bottom of the outer cylinder 3 along with the condensed water, and reaches the drain pump through the drain hose 2 11, then the water is discharged through the drain 12.
  • the moisture in the laundry can be gradually removed.
  • the mass m of the laundry is gradually reduced to a stable state, and the water vapor taken by the dry air is less and less, and the wet air moisture content daw2 and the wind when the drum is discharged.
  • the moisture content daw3 of the slightly humid air after heat exchange condensation is also gradually reduced until it is stable. Since the moisture content daw1 of the high-temperature dry air after heating is small, it can be ignored here.
  • the laundry drying determination method includes: acquiring an inlet air temperature of the air inlet of the drum; calculating a rate of change of the inlet air temperature of the air inlet of the drum; and a rate of change of the inlet air temperature; When the relationship with the preset temperature change rate ks satisfies the judgment condition, it is judged that the laundry drying is completed.
  • the laundry drying judging method of the present application only needs to utilize the judgment factor of the inlet air temperature of the drum air inlet, and then judges whether the laundry is dried according to the relationship between the inlet air temperature change rate and the preset temperature change rate ks. It can reduce the judgment factors affecting the drying of clothes, simplify the judgment condition of clothes drying, and improve the accuracy of the judgment of clothes drying. Moreover, since the measurement factor of the method only adopts a factor of the inlet air temperature of the air inlet of the drum, only one temperature is needed. The sensor can complete the temperature acquisition action, which can reduce the number of temperature sensors, reduce the drying cost of the clothes, and avoid the problem of poor judgment accuracy caused by the mutual influence of multiple factors.
  • the step of calculating the rate of change of the inlet air temperature of the air inlet of the drum further comprises: stopping the heating of the intake air when the inlet air temperature of the air inlet of the drum is ⁇ ⁇ Th;
  • the inlet air temperature of the drum air inlet Tin ⁇ Tl the intake air is heated. Since the heating pipe can heat the air and the heating temperature is high, if the inlet air temperature is heated to a higher temperature and exceeds the tolerance of the clothes, the clothing may be damaged, so it is necessary to control the inlet air temperature.
  • the inlet air temperature reaches or exceeds Th, the heating of the intake air is stopped, thereby reducing the inlet air temperature and protecting the clothes.
  • the inlet air temperature is less than or equal to T1
  • the drying temperature is too low, and the moisture in the laundry cannot be fully vaporized, thereby taking away the moisture in the laundry, so when the inlet air temperature is less than or equal to Tl
  • the air is heated to increase the inlet air temperature and improve the drying efficiency of the clothes.
  • the step of determining that the laundry drying is completed includes: cooling the temperature from Th to T1 at the inlet air temperature, and then heating from T1 to Th. For one cycle, determine the temperature rise time t1, t2, t3, ... tn in each cycle, and calculate the temperature change rate k1, k2, k3, ... kn of each cycle; The temperature rise rate kn of the cycle, if kn ⁇ ks, it is judged that the clothes have dried, and the drying is ended; if kn ⁇ ks, it is judged that the clothes have not dried yet, and the drying is continued.
  • the rate of change of the inlet air temperature includes the rate of change of temperature rise kn and the rate of change of temperature drop, and the factor directly affected by the heating pipe is the rate of change of the temperature of the inlet air temperature. Therefore, the rate of change of the temperature of the inlet air temperature can be selected as the judgment of whether the clothes are dried or not. Since the moisture content in the laundry is less, the temperature change rate kn is larger. Therefore, when kn reaches or exceeds the preset temperature change rate ks, it indicates that the moisture in the laundry has been reduced to a certain extent, and the drying requirement can be satisfied. Therefore, it is only necessary to detect the change in the kn value, and when the kn value satisfies the condition of greater than or equal to ks, it can be judged that the drying of the laundry is completed, and the drying is ended.
  • the temperature change rate kn of each cycle is determined, and if kn ⁇ ks, it is determined that the laundry has dried, and the step of ending the drying includes: detecting the temperature change rate kn in consecutive m cycles, if continuous m cycles When the temperature change rate kn satisfies kn ⁇ ks, it is judged that the laundry has dried, wherein m ⁇ 3. Because in the actual drying process of the laundry, there are still some influencing factors, so that the kn value satisfies the condition of greater than or equal to ks, but there is still the possibility that the laundry has not been dried at this time, therefore, in order to further improve the accuracy of the laundry drying judgment The temperature can be detected in the continuous m cycles. If the temperature change rate kn in the continuous m cycles satisfies kn ⁇ ks, it means that the moisture in the clothes has already met the drying requirement, and it can be determined that the clothes have been dried. .
  • the preset temperature change rate ks is one of the following: the ironing temperature change rate in the ironing state, the drying temperature change rate in the wear state, and the drying temperature change rate in the extremely dry state.
  • the drying judging method based on the change rate of the inlet air temperature adopted in the present application realizes the accurate drying judgment of the clothes, saves cost and energy compared with the traditional drying judging method, and realizes the protection of the clothes.
  • the laundry drying determining device includes: a temperature detecting unit for acquiring an inlet air temperature of the drum air inlet; and a calculating unit configured to detect the inlet air temperature according to the temperature detecting unit Calculating the rate of change of the inlet air temperature; the determining unit is configured to compare the rate of change of the inlet air temperature with the preset rate of change of temperature ks, and determine whether the laundry is finished drying according to the comparison result.
  • the laundry drying determining device further comprises a heating control unit, wherein the heating control unit is configured to control the heater to stop heating the intake air when the inlet air temperature Tin ⁇ Th of the drum air inlet; and the inlet air temperature at the air inlet of the drum When Tin ⁇ Tl, the control heater starts to heat the intake air.
  • the heating control unit is configured to control the heater to stop heating the intake air when the inlet air temperature Tin ⁇ Th of the drum air inlet; and the inlet air temperature at the air inlet of the drum When Tin ⁇ Tl, the control heater starts to heat the intake air.
  • the laundry drying determining device further includes a memory in which the preset temperature change rate ks is stored, and the determining unit acquires the preset temperature change rate ks from the memory.
  • the preset temperature change rate ks can be obtained experimentally.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

本申请提供一种衣物烘干判断方法和装置。该衣物烘干判断方法包括：获取滚筒进风口的进风温度；计算滚筒进风口的进风温度变化率；当进风温度变化率与预设温度变化率ks之间的关系满足判断条件时，判断衣物烘干完成。根据本申请的衣物烘干判断方法，能够减少影响衣物烘干的判断因素，提高衣物烘干判断的准确性，降低衣物烘干成本。

Description

衣物烘干判断方法和装置
相关申请
本申请要求2017年08月29日申请的，申请号为201710757023.0，名称为“衣物烘干判断方法和装置”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请属于衣物烘干技术领域，具体涉及一种衣物烘干判断方法和装置。
背景技术
现在的洗干一体机的烘干判断方法大部分都是利用多个温度传感器的温度经过复杂的算法来实现衣物的判干。在现有技术中，通过多个温度传感器检测的温度值，然后通过复杂的算法计算来判断衣物的干燥程度，或者方便地判断出衣物是否干燥。但上述方案由于利用的传感器太多，导致影响衣物烘干判断的因素过多，一旦某个环节出错，就容易导致判断错误，而且温度传感器太多，也容易增加衣物烘干的成本。
发明内容
因此，本申请要解决的技术问题在于提供一种衣物烘干判断方法和装置，能够减少影响衣物烘干的判断因素，提高衣物烘干判断的准确性，降低衣物烘干成本。
为了解决上述问题，本申请提供一种衣物烘干判断方法，包括：
获取滚筒进风口的进风温度；
计算滚筒进风口的进风温度变化率；
当进风温度变化率与预设温度变化率ks之间的关系满足判断条件时，判断衣物烘干完成。
优选地，在获取滚筒进风口的进风温度的步骤之后，计算滚筒进风口的进风温度变化率的步骤之前还包括：
当滚筒进风口的进风温度Tin≥Th时，停止对进风进行加热；
当滚筒进风口的进风温度Tin≤Tl时，开始对进风进行加热；
其中Th为进风的停止加热温度，Tl为进风的开始加热温度，当进风温度大于或等于Th时，停止对进风加热，当进风温度小于或等于Tl时，开始对进风加热。
优选地，计算滚筒进风口的进风温度变化率的步骤包括：
计算进风温度从Tl到Th时的进风温度变化率k，
其中k＝(Th-Tl)/t，t为进风温度从Tl升高到Th所用的时间。
优选地，当进风温度变化率与预设温度变化率ks之间的关系满足判断条件时，判断衣物烘干完成的步骤包括：
以进风温度从Th降温至Tl，之后从Tl升温至Th为一个周期，确定每个周期内的升温时间t1、t2、t3......tn，并计算每个周期的升温变化率k1、k2、k3......kn；
判断每一周期的升温变化率kn，若kn≥ks，则判断衣物已经干燥，结束烘干；
若kn＜ks，则判断衣物尚未干燥，继续烘干。
优选地，判断每一周期的升温变化率kn，若kn≥ks，则判断衣物已经干燥，结束烘干的步骤包括：
检测连续m个周期内的升温变化率kn，若连续m个周期内的升温变化率kn均满足kn≥ks，则判断衣物已经干燥，其中m≥3。
优选地，预设温度变化率ks为下列之一：熨烫状态烘干温度变化率、即穿状态烘干温度变化率和极干状态烘干温度变化率。
根据本申请的另一方面，提供了一种衣物烘干判断装置，包括：
温度检测单元，用于获取滚筒进风口的进风温度；
计算单元，用于根据温度检测单元检测的进风温度计算进风温度变化率；
判断单元，用于将进风温度变化率与预设温度变化率ks进行比较，并根据比较结果判断衣物是否完成烘干。
优选地，衣物烘干判断装置还包括加热控制单元，加热控制单元用于在滚筒进风口的进风温度Tin≥Th时，控制加热器停止对进风进行加热；在滚筒进风口的进风温度Tin≤Tl时，控制加热器开始对进风进行加热。
优选地，衣物烘干判断装置还包括存储器，存储器内存储有预设温度变化率ks，判断单元从存储器获取预设温度变化率ks。
本申请提供的衣物烘干判断方法包括：获取滚筒进风口的进风温度；计算滚筒进风口的进风温度变化率；当进风温度变化率与预设温度变化率ks之间的关系满足判断条件时，判断衣物烘干完成。本申请的衣物烘干判断方法，只需要利用滚筒进风口的进风温度这一个判断因素，然后根据进风温度变化率与预设温度变化率ks之间的关系来判断衣物是否烘干，不仅能够减少影响衣物烘干的判断因素，简化衣物烘干的判断条件，提高衣物烘干判断的准确性，而且由于本方法只采用滚筒进风口的进风温度一个因素，只需要一个温度传 感器即可完成温度获取动作，能够减少温度传感器的数量，降低衣物烘干成本。
附图说明
图1是衣物烘干装置的结构示意图；
图2是本申请实施例的衣物烘干判断方法的流程图；
图3是衣物烘干装置的烘干除湿原理图；
图4是衣物烘干过程中衣物质量变化图；
图5是衣物烘干过程中经过滚筒后的湿空气含湿量变化图；
图6是衣物烘干过程中经过换热冷凝后的湿空气含湿量变化图；
图7是衣物烘干过程中加热控制图；
图8是本申请实施例的衣物烘干判断装置的结构原理图。
具体实施方式
结合参见图1所示，本申请所应用的衣物烘干装置包括机箱1、排水软管2、外筒3、内筒4、进风温度传感器5、上风道6、加热管7、风机8、进水阀9、后风道10、排水泵11和排水管12。各部件均设置在机箱1内。
内筒4和外筒3合称为滚筒，内筒4套设在外筒3内，外筒3的进风口连接至上风道6的出风口，在外筒3的进风口(滚筒进风口)设置有进风温度传感器5，在上风道6内设置有加热管7以及风机8，在上风道6与后风道10相交的位置设置有进水阀9。排水软管2设置在外筒3的底部，排水软管2连接至排水泵11，排水泵11的排水口连接有排水管12。
结合参见图1和图3所示，在衣物烘干装置通电后，风机8转动，将低温微湿空气吹向加热管7，加热管7将空气加热，然后高温干燥的空气经过上风道6进入外筒3，在此过程中，进风感温包5实时检测温度并控制加热管7的开停。高温干燥的空气经过内筒4中的湿衣物，将湿衣物中的水分蒸发带走，高温干燥的空气变成中温湿空气，中温湿空气进入后风道10，此时进水阀9打开，冷凝水进入后风道10，在这里，中温湿空气和冷凝水进行换热，中温湿空气中的水蒸气冷凝成水，随冷凝水一起流向外筒3底部，经过排水软管2到达排水泵11，然后将水经过排水管12排出。按上述方式进行循环，可以将衣物中的水分逐渐除去。
结合参见图4至图7所示，随着烘干的进行，衣物的质量m逐渐减少至稳定，干燥空气所带走的水蒸气越来越少，滚筒出风时湿空气含湿量daw2和换热冷凝后的微湿空气含 湿量daw3也是逐渐减少，直至稳定。由于加热后的高温干燥空气的含湿量daw1较小，此处可以忽略不计。
由公式：
c paw＝1.01+1.84*d aw
Q＝c paw*M*(T h-T l)
W＝p*t n
可知，湿空气的比定压热容c paw和含湿量daw正相关，所以将M质量的湿空气由Tl加热升温到Th需要的热量Q与湿空气的比定压热容c paw正相关，而加热管的功率p是一定的，所以每一周期的升温时间tn(n＝1、2、3......)会越来越小，相应的每一周期的升温变化率kn＝(Th-Tl)/tn会越来越大。其中Th为进风的停止加热温度，Tl为进风的开始加热温度，当进风温度大于或等于Th时，加热管停止加热，当进风温度小于或等于Tl时，加热管开始加热。
结合参见图7所示，根据进风温度控制的烘干过程中进风温度实时变化趋势曲线图可知，随着烘干的进行，tn(n＝1、2、3......)越来越小，直至衣物干燥，因此，根据进风温度升温时的速率，也即进风温度变化率的变化，就可以确定衣物是否干燥，本申请的思想正是基于上述分析。
结合参见图2至图7所示，根据本申请的实施例，衣物烘干判断方法包括：获取滚筒进风口的进风温度；计算滚筒进风口的进风温度变化率；当进风温度变化率与预设温度变化率ks之间的关系满足判断条件时，判断衣物烘干完成。
本申请的衣物烘干判断方法，只需要利用滚筒进风口的进风温度这一个判断因素，然后根据进风温度变化率与预设温度变化率ks之间的关系来判断衣物是否烘干，不仅能够减少影响衣物烘干的判断因素，简化衣物烘干的判断条件，提高衣物烘干判断的准确性，而且由于本方法的测量因素只采用滚筒进风口的进风温度一个因素，只需要一个温度传感器即可完成温度获取动作，能够减少温度传感器的数量，降低衣物烘干成本，同时也可以避免多个因素相互影响所造成的判断精度较差的问题。
在获取滚筒进风口的进风温度的步骤之后，计算滚筒进风口的进风温度变化率的步骤之前还包括：当滚筒进风口的进风温度Tin≥Th时，停止对进风进行加热；当滚筒进风口的进风温度Tin≤Tl时，开始对进风进行加热。由于加热管能够对空气进行加热，且加热的温度较高，因此如果对进风温度加热到较高温度时，超过了衣物的承受范围，就可能对衣物造成损伤，因此需要控制进风温度，在进风温度达到或者超过Th时停止对进风进行 加热，从而降低进风温度，对衣物进行保护。相应地，如果进风温度小于或等于Tl时，就会造成干燥温度过低，不能使衣物中的水分充分气化，从而带走衣物中的水分，因此需要在进风温度小于或等于Tl时，对进风进行加热，从而提高进风温度，提高衣物的干燥效率。
优选地，计算滚筒进风口的进风温度变化率的步骤包括：计算进风温度从Tl到Th时的进风温度变化率k，其中k＝(Th-Tl)/t，t为进风温度从Tl升高到Th所用的时间。
优选地，当进风温度变化率与预设温度变化率ks之间的关系满足判断条件时，判断衣物烘干完成的步骤包括：以进风温度从Th降温至Tl，之后从Tl升温至Th为一个周期，确定每个周期内的升温时间t1、t2、t3......tn，并计算每个周期的升温变化率k1、k2、k3......kn；判断每一周期的升温变化率kn，若kn≥ks，则判断衣物已经干燥，结束烘干；若kn＜ks，则判断衣物尚未干燥，继续烘干。进风温度变化率包括升温变化率kn和降温变化率，而加热管直接影响的因素为进风温度的升温变化率，因此可以选取进风温度升温变化率来作为衣物是否烘干的判断调节。由于衣物中的含湿量越少，升温变化率kn越大，因此，当kn达到或者大于预设的温度变化率ks时，就说明衣物中的水分已经降低到一定程度，可以满足干燥要求，因此，只需要检测kn值的变化，在kn值满足大于或等于ks的条件时，就可以判定衣物干燥完成，结束烘干。
优选地，判断每一周期的升温变化率kn，若kn≥ks，则判断衣物已经干燥，结束烘干的步骤包括：检测连续m个周期内的升温变化率kn，若连续m个周期内的升温变化率kn均满足kn≥ks，则判断衣物已经干燥，其中m≥3。由于在实际的衣物干燥过程中，仍然存在某些影响因素，使得kn值满足大于或等于ks的条件，但此时仍然存在衣物尚未烘干的可能，因此，为了进一步提高衣物烘干判断的准确性，可以检测连续m个周期内的升温变化率kn，若连续m个周期内的升温变化率kn均满足kn≥ks，则说明衣物中的水分确实已经满足干燥要求，可以确定衣物已经烘干。
预设温度变化率ks为下列之一：熨烫状态烘干温度变化率、即穿状态烘干温度变化率和极干状态烘干温度变化率。通过改变预设温度变化率ks，可以使得衣物烘干根据需求的不同而烘干到相应的烘干程度，从而能够更好地满足多种不同的衣物烘干要求，提高衣物烘干的适用性。
本申请采用的基于进风温度变化率的烘干判断方法，实现了对衣物精准的烘干判断，和传统的烘干判断方法相比，节约了成本和能源，并实现对衣物的保护。
结合参见图8所示，根据本申请的实施例，衣物烘干判断装置包括：温度检测单元，用于获取滚筒进风口的进风温度；计算单元，用于根据温度检测单元检测的进风温度计算进风温度变化率；判断单元，用于将进风温度变化率与预设温度变化率ks进行比较，并根 据比较结果判断衣物是否完成烘干。
优选地，衣物烘干判断装置还包括加热控制单元，加热控制单元用于在滚筒进风口的进风温度Tin≥Th时，控制加热器停止对进风进行加热；在滚筒进风口的进风温度Tin≤Tl时，控制加热器开始对进风进行加热。
优选地，衣物烘干判断装置还包括存储器，存储器内存储有预设温度变化率ks，判断单元从存储器获取预设温度变化率ks。其中预设温度变化率ks可以通过实验获得。
本领域的技术人员容易理解的是，在不冲突的前提下，上述各有利方式可以自由地组合、叠加。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本申请的保护范围之内。以上所述仅是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请技术原理的前提下，还可以做出若干改进和变型，这些改进和变型也应视为本申请的保护范围。

Claims (9)

  1. 一种衣物烘干判断方法，其特征在于，包括：
    获取滚筒进风口的进风温度；
    计算滚筒进风口的进风温度变化率；
    当进风温度变化率与预设温度变化率ks之间的关系满足判断条件时，判断衣物烘干完成。
  2. 根据权利要求1所述的衣物烘干判断方法，其特征在于，在获取滚筒进风口的进风温度的步骤之后，计算滚筒进风口的进风温度变化率的步骤之前还包括：
    当滚筒进风口的进风温度Tin≥Th时，停止对进风进行加热；
    当滚筒进风口的进风温度Tin≤Tl时，开始对进风进行加热。
  3. 根据权利要求2所述的衣物烘干判断方法，其特征在于，所述计算滚筒进风口的进风温度变化率的步骤包括：
    计算进风温度从Tl到Th时的进风温度变化率k，
    其中k＝(Th-T1)/t，t为进风温度从Tl升高到Th所用的时间；
    其中Th为进风的停止加热温度，Tl为进风的开始加热温度，当进风温度大于或等于Th时，停止对进风加热，当进风温度小于或等于Tl时，开始对进风加热。
  4. 根据权利要求3所述的衣物烘干判断方法，其特征在于，所述当进风温度变化率与预设温度变化率ks之间的关系满足判断条件时，判断衣物烘干完成的步骤包括：
    以进风温度从Th降温至Tl，之后从Tl升温至Th为一个周期，确定每个周期内的升温时间t1、t2、t3......tn，并计算每个周期的升温变化率k1、k2、k3......kn；
    判断每一周期的升温变化率kn，若kn≥ks，则判断衣物已经干燥，结束烘干；
    若kn＜ks，则判断衣物尚未干燥，继续烘干。
  5. 根据权利要求4所述的衣物烘干判断方法，其特征在于，所述判断每一周期的升温变化率kn，若kn≥ks，则判断衣物已经干燥，结束烘干的步骤包括：
    检测连续m个周期内的升温变化率kn，若连续m个周期内的升温变化率kn均满足kn≥ks，则判断衣物已经干燥，其中m≥3。
  6. 根据权利要求1所述的衣物烘干判断方法，其特征在于，预设温度变化率ks为下列之一：熨烫状态烘干温度变化率、即穿状态烘干温度变化率和极干状态烘干温度变化率。
  7. 一种衣物烘干判断装置，其特征在于，包括：
    温度检测单元，用于获取滚筒进风口的进风温度；
    计算单元，用于根据所述温度检测单元检测的进风温度计算进风温度变化率；
    判断单元，用于将进风温度变化率与预设温度变化率ks进行比较，并根据比较结果判断衣物是否完成烘干。
  8. 根据权利要求7所述的衣物烘干判断装置，其特征在于，所述衣物烘干判断装置还包括加热控制单元，所述加热控制单元用于在滚筒进风口的进风温度Tin≥Th时，控制加热器停止对进风进行加热；在滚筒进风口的进风温度Tin≤Tl时，控制加热器开始对进风进行加热。
  9. 根据权利要求7所述的衣物烘干判断装置，其特征在于，所述衣物烘干判断装置还包括存储器，所述存储器内存储有预设温度变化率ks，所述判断单元从所述存储器获取预设温度变化率ks。
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107663761B (zh) 2017-08-29 2019-12-10 珠海格力电器股份有限公司 衣物烘干判断方法和装置
WO2019169620A1 (zh) * 2018-03-09 2019-09-12 友隆电器工业(深圳)有限公司 一种潮湿衣服的检测方法及装置
CN110438779B (zh) * 2018-05-04 2021-10-29 青岛海尔洗涤电器有限公司 一种干衣衣物处理装置温度控制方法及干衣衣物处理装置
CN110075327A (zh) * 2019-04-28 2019-08-02 杭州老板电器股份有限公司 消毒柜及消毒柜的控制方法
CN112779744A (zh) * 2019-11-01 2021-05-11 佛山市云米电器科技有限公司 一种干衣机自动烘干判断方法、系统、存储介质及干衣机
CN110924109A (zh) * 2019-12-03 2020-03-27 无锡小天鹅电器有限公司 衣物处理设备的控制方法
CN113668207B (zh) * 2020-04-30 2023-12-05 云米互联科技(广东)有限公司 送风装置的控制方法、送风装置、智能晾晒系统及介质
CN112921589B (zh) * 2021-01-07 2022-03-04 珠海格力电器股份有限公司 一种烘干降温时长的分析方法及装置
EP4394120A1 (en) * 2021-09-01 2024-07-03 Shenzhen Roborock Innovation Technology Co., Ltd. Integrated washer dryer
CN114263032B (zh) * 2021-12-17 2024-04-16 木卫智能科技(深圳)有限公司 干衣控制方法及衣物处理设备
CN114687176B (zh) * 2022-04-29 2023-04-25 珠海格力电器股份有限公司 外筒组件、干衣设备

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1516501A (en) * 1975-05-30 1978-07-05 Ti Domestic Appliances Ltd Tumbler dryers
JPS5914893A (ja) * 1982-07-16 1984-01-25 松下電器産業株式会社 乾燥機のヒ−タ制御装置
JPS6024900A (ja) * 1983-07-20 1985-02-07 松下電器産業株式会社 乾燥機の制御方法
JPS60119999A (ja) * 1983-12-01 1985-06-27 松下電器産業株式会社 乾燥機の制御装置
JPH0412800A (ja) * 1990-04-28 1992-01-17 Sanyo Electric Co Ltd 乾燥機の制御装置
JPH04256798A (ja) * 1991-02-08 1992-09-11 Matsushita Electric Ind Co Ltd 衣類乾燥機
JPH0510669A (ja) * 1991-07-04 1993-01-19 Matsushita Electric Ind Co Ltd 衣類乾燥機
US20030230005A1 (en) * 2002-06-13 2003-12-18 Camco Inc. Control system for an automatic clothes dryer
CN102505439A (zh) * 2011-11-08 2012-06-20 海尔集团公司 一种干衣方法及干衣机
CN102517861A (zh) * 2011-12-19 2012-06-27 海尔集团公司 干衣温度检测控制方法及干衣机
CN107663761A (zh) * 2017-08-29 2018-02-06 珠海格力电器股份有限公司 衣物烘干判断方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100556503B1 (ko) * 2002-11-26 2006-03-03 엘지전자 주식회사 건조기의 건조 시간제어 방법
EP2449161B1 (en) * 2009-07-01 2022-01-12 LG Electronics Inc. Laundry machine and controlling method thereof
US9435587B2 (en) 2012-03-30 2016-09-06 Samsung Electronics Co., Ltd. Clothing dryer and blockage detection method thereof
KR20140065263A (ko) 2012-11-21 2014-05-29 엘지전자 주식회사 열풍공급장치를 갖는 의류처리기 및 그의 운전방법

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1516501A (en) * 1975-05-30 1978-07-05 Ti Domestic Appliances Ltd Tumbler dryers
JPS5914893A (ja) * 1982-07-16 1984-01-25 松下電器産業株式会社 乾燥機のヒ−タ制御装置
JPS6024900A (ja) * 1983-07-20 1985-02-07 松下電器産業株式会社 乾燥機の制御方法
JPS60119999A (ja) * 1983-12-01 1985-06-27 松下電器産業株式会社 乾燥機の制御装置
JPH0412800A (ja) * 1990-04-28 1992-01-17 Sanyo Electric Co Ltd 乾燥機の制御装置
JPH04256798A (ja) * 1991-02-08 1992-09-11 Matsushita Electric Ind Co Ltd 衣類乾燥機
JPH0510669A (ja) * 1991-07-04 1993-01-19 Matsushita Electric Ind Co Ltd 衣類乾燥機
US20030230005A1 (en) * 2002-06-13 2003-12-18 Camco Inc. Control system for an automatic clothes dryer
CN102505439A (zh) * 2011-11-08 2012-06-20 海尔集团公司 一种干衣方法及干衣机
CN102517861A (zh) * 2011-12-19 2012-06-27 海尔集团公司 干衣温度检测控制方法及干衣机
CN107663761A (zh) * 2017-08-29 2018-02-06 珠海格力电器股份有限公司 衣物烘干判断方法和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3660205A4 *

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