WO2018095269A1 - 一种洗衣机用衣物干湿度判断方法及洗衣机 - Google Patents

一种洗衣机用衣物干湿度判断方法及洗衣机 Download PDF

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WO2018095269A1
WO2018095269A1 PCT/CN2017/111490 CN2017111490W WO2018095269A1 WO 2018095269 A1 WO2018095269 A1 WO 2018095269A1 CN 2017111490 W CN2017111490 W CN 2017111490W WO 2018095269 A1 WO2018095269 A1 WO 2018095269A1
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laundry
inner tub
washing machine
clothes
wetting
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PCT/CN2017/111490
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English (en)
French (fr)
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田书君
许升
邓金柱
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青岛海尔洗衣机有限公司
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Publication of WO2018095269A1 publication Critical patent/WO2018095269A1/zh

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14Arrangements for detecting or measuring specific parameters
    • D06F34/18Condition of the laundry, e.g. nature or weight
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/04Quantity, e.g. weight or variation of weight
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/08Humidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02Water supply
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • D06F33/30Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling

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  • the present invention relates to a washing apparatus, and more particularly to a method for judging the dryness of a laundry for a washing machine, and to a washing machine to which the method for judging the dryness of the laundry is applied.
  • the existing washing machine products basically have the function of fuzzy weighing, and the washing water amount is determined according to the weight of the laundry put into the inner tub of the washing machine, and the laundry is the dry clothes by default; but when the laundry is wet clothes, the washing machine cannot It is automatically judged that the dry clothes of this weight will still be fed into the water, which will lead to an increase in the amount of water inflow, resulting in low washing efficiency and unnecessary waste of excessive water. Further, in the case of a washing machine that automatically dispenses detergent, there is also a problem that the amount of the detergent to be dispensed is excessively wasted. Therefore, it is very necessary to judge the dryness and dampness of the laundry to be placed before the washing machine is washed.
  • the object of the present invention is to provide a method for judging the dryness of clothes for a washing machine, so as to achieve the purpose of accurately judging the dryness of the clothes in the washing machine, and a method for controlling the washing machine, and determining the washing machine by using the dryness of the laundry.
  • the amount of water in the washing program is to achieve the purpose of regulating the water intake of the washing machine and the fine control of the washing machine.
  • a method for judging the humidity of clothes for a washing machine firstly performing a soaking procedure on the laundry in the inner tub, and measuring the height of the laundry after uniformly distributing the laundry before and after the wetting process, and the clothes before and after the wetting process.
  • the height difference ⁇ H is compared with the set value to determine the dry humidity of the laundry.
  • the weight of the laundry placed in the inner tub is detected, and the pre-stored value corresponding to the detected value pre-stored in the washing machine is called, and the pre-stored value is used as the set value to be compared with the laundry height difference ⁇ H.
  • the set value includes a height difference ⁇ H0 before and after the dry laundry wetting program and a height difference ⁇ H1 before and after the semi-wet laundry wetting program;
  • the method includes the following steps.
  • Step 1) After the laundry is placed in the inner tub, the inner tub is controlled to rotate for a certain time t1, and the laundry is evenly distributed;
  • Step 2 measuring the weight and detecting the height of the evenly distributed clothes, and obtaining the laundry height M1 before the laundry quality M0 and the wetting program;
  • Step 3 performing a wetting procedure, spraying water into the inner tub to make the laundry wet; after the water inlet process and/or after the water inlet is completed, controlling the inner tub to rotate for a certain time t2, uniformly distributing the wetted clothes, After the clothes are evenly distributed, all the water in the inner tub is discharged;
  • Step 4 inspecting the uniformly distributed and wetted clothes, and obtaining the laundry height H2 after the wetting procedure;
  • Step 6 comparing the height difference ⁇ H between the clothes before and after the wetting process with the height difference ⁇ H0 before and after the dry laundry wetting process and the height difference ⁇ H1 before and after the semi-wet laundry wetting process, and obtaining the dry humidity of the laundry in the inner tub;
  • the amount of water sprayed into the inner tub during the soaking process of the washing machine in step 3) is twice the mass of the laundry M0.
  • the amount of water in the wetted clothes is 1 times the mass of the clothes M0, the dry clothes will have a large difference in height difference, the semi-wet clothes will have a certain height difference change, and the wet clothes will not change the height difference, It can be distinguished from the difference in clothes of different dryness; at the same time, the total amount of water in the wetting process is controlled, which reduces the water consumption in the washing process.
  • the dry moisture of the laundry and the weight M0 of the laundry are placed in the inner tub, and the corresponding water intake amount in the subsequent washing process is obtained.
  • the distance sensor provided on the top of the washing machine respectively detects the same direction in the inner tub of the washing machine to obtain the distance between the upper surface of the laundry and the distance sensor in the direction, according to the measuring distance and the inner barrel depth. , to get the clothing height H1 and H2;
  • the heights of the laundry in at least two directions in the inner tub are respectively detected, and the detected values are compared with each other, and the difference is averaged, and the average value is used as the detection value ⁇ H. ;
  • the heights of the clothes placed in the same direction in the inner tub are respectively detected multiple times, and the average values of the detected values are averaged to obtain an average value, and then the average values are compared. The difference is taken as the detected value ⁇ H.
  • the distance between the laundry in the inner tub before and after the wetting process and the distance sensor provided on the top of the inner tub are respectively detected, and the difference between the detected values is used as the difference between the laundry height difference ⁇ H before and after the wetting program, and compared with the set value. Get the dry humidity of the clothes.
  • the invention also relates to a washing machine applying the above-mentioned laundry dry humidity judging method, so as to accurately judge the dryness of the laundry in the inner tub, and then reasonably adjust the water intake of the washing machine in the washing program, and avoid the difference of the dry humidity affecting the washing effect of the washing machine. .
  • a washing machine applying the above-described laundry dry humidity judging method includes an inner tub and an outer tub; and the washing machine is provided with a distance sensor for detecting the height of the laundry in the inner tub.
  • the distance sensor is disposed at the top of the inner tub, and the probe of the distance sensor emits a detecting grating in at least one direction of the inner tub bottom, and the receiving end of the distance sensor can receive the detecting grating reflected by the laundry in the inner tub, and calculate the inner bucket according to the received detecting grating.
  • the height of the laundry is disposed at the top of the inner tub, and the probe of the distance sensor emits a detecting grating in at least one direction of the inner tub bottom, and the receiving end of the distance sensor can receive the detecting grating reflected by the laundry in the inner tub, and calculate the inner bucket according to the received detecting grating. The height of the laundry.
  • the washing machine further includes a weight detecting unit that performs weight detection on the laundry in the inner tub.
  • the washing machine may further be a drum washing machine, the drum washing machine includes an outer tube and an inner tube, and the washing machine is provided with a distance sensor for detecting the height of the laundry in the inner tube; the same method is also applied to accurately determine the dryness of the clothes in the inner tube. .
  • the present invention has the following beneficial effects:
  • the change characteristics before and after the laundry wetting procedure can be obtained, and the dry humidity of the laundry placed in the inner tub can be accurately obtained; further, the washing machine is provided for the subsequent washing process. Based on the data, the purpose of accurately controlling the water intake of the washing machine is achieved.
  • the washing machine accurately detects the height of the laundry in the inner tub to obtain the accurate height of the laundry in the washing machine; meanwhile, before the height detection of the laundry in the inner tub of the washing machine, the inner bucket must be controlled to rotate for a certain time.
  • the cloth program allows the clothes in the inner tub to be evenly distributed in the inner tub to improve the accuracy of detecting the height of the laundry; and the front and back difference is compared with the set value, so that only the height of the laundry in the inner tub needs to be detected on both sides.
  • the accurate judgment of the dryness of the clothes can be realized, the judgment step is simplified, and the reaction rate is improved.
  • the method of the invention is simple, simple in structure, remarkable in effect, and suitable for popularization and use.
  • FIG. 1 is a flow chart of a method for determining the dryness of clothes in a washing machine in an embodiment of the present invention
  • Fig. 2 is a flow chart showing a method for judging the dryness of clothes in a washing machine in another embodiment of the present invention.
  • a washing machine which comprises an outer tub installed in the casing, an inner tub set in the outer tub, the laundry to be washed in the inner tub, the washing water in the outer tub, and the inner and outer barrels.
  • the plurality of dewatering holes provided on the inner tub are connected to cause the washing water to flow into the inner tub, and the washing water is driven to wash the laundry through the agitation of the inner drum and/or the inner drum and the stirrer.
  • the washing machine is further provided with a distance sensor for detecting the height of the laundry in the inner tub to detect the height of the upper surface of the laundry in the inner tub.
  • a method for judging the dryness of the clothes by using the above device includes the following steps: firstly performing a soaking process on the laundry in the inner tub, and placing the laundry before and after the wetting process.
  • the laundry height is measured after being uniformly distributed, and the measured laundry height difference ⁇ H is compared with the set value to obtain the dry humidity of the laundry.
  • the change characteristics before and after the laundry wetting procedure can be obtained, and the dry humidity of the laundry placed in the inner tub can be accurately obtained; further, the data basis for the washing process of the washing machine is provided. To achieve the purpose of accurately controlling the amount of water in the washing machine.
  • a method for judging the dryness of the clothes for the washing machine is introduced, which specifically includes the following steps:
  • Step 1) After the laundry is placed in the inner tub, the inner tub is controlled to rotate for a certain time t1, and the laundry is evenly distributed;
  • Step 2 measuring the weight and detecting the height of the evenly distributed clothes, and obtaining the laundry height M1 before the laundry quality M0 and the wetting program;
  • Step 3 performing a wetting procedure, spraying water into the inner tub to make the laundry wet; after the water inlet process and/or after the water inlet is completed, controlling the inner tub to rotate for a certain time t2, uniformly distributing the wetted clothes, After the clothes are evenly distributed, all the water in the inner tub is discharged;
  • Step 4 inspecting the uniformly distributed and wetted clothes, and obtaining the laundry height H2 after the wetting procedure;
  • Step 6 comparing the measured laundry height difference ⁇ H before and after the wetting process with the height difference ⁇ H0 before and after the wet laundry is wetted, and the semi-wet laundry height difference ⁇ H1,
  • the washing machine accurately detects the height of the laundry in the inner tub to obtain the accurate height of the laundry in the washing machine; at the same time, before the height detection of the laundry in the inner tub of the washing machine, it is necessary to first control the inner tub to rotate for a certain time to execute the uniformizing program. , so that the laundry in the inner tub is evenly distributed in the inner tub to improve the accuracy of detecting the height of the laundry; and, the front-back difference is compared with the set value, so that only the two sides of the inner bucket are detected on both sides, It can realize the accurate judgment of the dryness of the clothes, simplify the judgment step and increase the reaction rate.
  • the amount of water sprayed into the inner tub during the soaking process of the washing machine in step 3) is twice the mass of the laundry M0.
  • the amount of water in the wetted clothes is 1 times the mass of the clothes M0, the dry clothes will have a large difference in height difference, the semi-wet clothes will have a certain height difference change, and the wet clothes will not change the height difference, It can be distinguished from the difference in clothes of different dryness; at the same time, the total amount of water in the wetting process is controlled, which reduces the water consumption in the washing process.
  • the distance sensor provided on the top of the washing machine respectively detects the same direction in the inner tub of the washing machine to obtain the The distance between the upper surface of the garment and the distance sensor in the direction, according to the measured distance and the inner barrel depth, the laundry heights H1 and H2 are obtained.
  • the height change of the laundry in the direction is accurately obtained, and an accurate detection value ⁇ H of the laundry height change is obtained according to the change, thereby achieving the drying of the laundry in the inner tub.
  • the heights of the laundry in at least two directions in the inner tub are respectively detected to obtain a first detecting direction, a second direction, ... n
  • n is The heights H11, H12, ... H1n before the wet process in the direction of the positive integer of 2 or more; the first detection direction, the second detection direction, and the heights H21, H22, ..., H2n after the wetting process in the nth direction.
  • the detection accuracy is improved, and the probability of detection error caused by uneven distribution of clothes is reduced.
  • the heights of the clothes placed in the same direction in the inner tub are respectively tested multiple times to obtain the first and second times before the wetting process.
  • n (n is a positive integer greater than or equal to 2) the laundry heights H11, H12, ... H1n; the first, second, ... nth laundry heights H21, H22, ... H2n after the wetting procedure.
  • the detection value ⁇ H is obtained by performing multiple detections on the height of the laundry in the inner tub before and after the wetting process, and the detection value ⁇ H is obtained to further improve the detection accuracy, thereby avoiding the occurrence of a decrease in measurement accuracy caused by the sensor detection error.
  • step 3 water is sprayed into the inner tub from the top of the inner tub of the washing machine, so that the spray water falls into the inner tub from the upper direction, and the laundry placed in the inner tub is wetted. Since the spray water is used in the wetting process, the contact area between the water inlet and the laundry is increased, and the wetting efficiency is improved.
  • the difference between the embodiment and the first embodiment is that the distance difference between the upper surface of the laundry and the distance sensor before and after the laundry soaking procedure is detected in the inner tub, and the distance difference is compared with the set value to obtain the clothing. Dry humidity.
  • the distance detected by the distance sensor can be directly compared to obtain a change in the height difference of the laundry in the inner tub, thereby avoiding converting the distance sensor detection value into the laundry height.
  • the step of phase difference so that the control step is simpler and the operating efficiency of the washing machine is more efficient than that of the first embodiment.
  • a method for judging the dryness of the clothes for the washing machine is introduced, which specifically includes the following steps:
  • Step 11 after placing the laundry in the inner tub, controlling the inner tub to rotate for a certain time t1, and uniformly distributing the laundry;
  • Step 12 measuring the weight and detecting the height of the evenly distributed clothes, and obtaining the distance L1 between the distance between the distance sensor and the laundry before the laundry quality M0 and the wetting program;
  • Step 13 performing a wetting procedure, spraying the water into the inner tub to make the laundry wet; after the water inlet process and/or after the water inlet is completed, controlling the inner tub to rotate for a certain time t2, uniformly distributing the wetted clothes, After the clothes are evenly distributed, all the water in the inner tub is discharged;
  • Step 14 checking the height of the evenly distributed and soaked clothes, and obtaining a distance L2 between the distance sensor and the laundry after the wetting procedure;
  • Step 16 comparing the measured laundry height difference ⁇ L before and after the wetting process with the height difference ⁇ L0 before and after the wet laundry is wetted, and the semi-wet laundry height difference ⁇ L1,
  • the washing machine can also accurately detect the height of the laundry in the inner tub to obtain the accurate height of the laundry in the washing machine; at the same time, since the distance detecting value of the distance sensor is directly used as a judgment basis, the conversion step is shortened and the speed is shortened. The judgment process.
  • the distance sensor is disposed at the top of the inner tub, and the probe of the distance sensor emits a detection grating in at least one direction of the inner barrel bottom, and the receiving end of the distance sensor can receive the detection grating reflected by the laundry in the inner barrel, according to the received detection.
  • the raster calculates the height of the laundry in the inner tub, and/or the distance between the distance sensor and the laundry in the inner tub.
  • the distance sensor is mounted on the washing machine control tray above the inner tub, and the probe of the distance sensor emits the detecting grating in the middle direction of the inner tub. Further preferably, the probe of the distance sensor is rotatably movable, so that the probe can emit the detecting grating in multiple directions in the inner barrel to detect the height of the laundry in the inner tub in multiple directions and/or the distance between the laundry and the distance sensor. .
  • the washing machine further includes a weight detecting unit for performing weight detection on the laundry in the inner tub, and the weight detecting unit may be used for loading the laundry into any existing inner bucket of the weight sensor installed at the bottom of the outer tub.
  • Weight detection device for performing weight detection on the laundry in the inner tub, and the weight detecting unit may be used for loading the laundry into any existing inner bucket of the weight sensor installed at the bottom of the outer tub.
  • a washing machine control method comprises: determining the dry humidity of the laundry in the inner tub and the weight M0 of the laundry in the inner tub according to the judging method described in the first embodiment or the second embodiment, and obtaining the subsequent washing process. Corresponding water intake to avoid excessive water flow and too little occurrence, so as to achieve precise control of the washing machine washing program.
  • the load weight in the washing machine is M0, and the washing water intake amount of the washing machine is the corresponding value of M0; when the first or second embodiment determines that the washing machine delivers the clothes After the semi-wet laundry, the load weight in the washing machine is M0* set value a%, and the washing machine water intake amount is the corresponding value of M0*a%; when the first or second embodiment determines that the washing machine puts the clothes into the wet clothes, The load weight in the washing machine is M0* set value b%, and the washing machine wash water intake amount is the corresponding value of M0*b%.
  • the above a and b are both greater than 0, less than 100, and b is less than a.
  • the amount of water in the washing program of the washing machine can be reasonably controlled and adjusted to avoid the occurrence of significant difference in the washing effect of the washing machine due to the difference in the dryness of the clothes, thereby further improving the fine control of the washing machine.
  • the washing machine is a drum washing machine
  • the drum washing machine comprises an inner tube and an outer tube, and further comprises a distance sensor for detecting the height of the clothes in the inner tube;
  • the distance sensor can be installed in the inner barrel At the top of the mouth, the probe of the distance sensor emits a detection grating in at least one direction of the bottom of the inner cylinder to detect the height of the laundry in the inner tub.
  • the drum washing machine detects the height difference before and after the laundry wetting process in the inner tub, and determines the dry humidity of the laundry in the inner tub by the method of the first embodiment or the second embodiment.

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  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

一种洗衣机用衣物干湿度判断方法,对内桶中投放衣物先进行浸湿程序,并对浸湿程序前和浸湿程序后的投放衣物分别均布处理后测量衣物高度,将浸湿程序前后衣物高度差ΔH与设定值相比较,以得出衣物的干湿度。通过对内桶中衣物浸湿程序前后的高度差进行检测,就可得出衣物浸湿程序前后的变化特征,准确得出投放入内桶中衣物的干湿度;进而,为洗衣机后续洗涤程序提供数据依据,达到精确控制洗衣机进水量的目的。同时,还提供了一种应用上述衣物干湿度判断方法的洗衣机,结构简单,效果显著,适宜推广应用。

Description

一种洗衣机用衣物干湿度判断方法及洗衣机 技术领域
本发明涉及洗涤设备,尤其涉及一种洗衣机用衣物干湿度判断方法,还涉及一种应用上述衣物干湿度判断方法的洗衣机。
背景技术
目前现有洗衣机产品基本上都具有模糊称重的功能,根据投放入洗衣机内桶中衣物的重量确定洗涤进水量,且默认所投放衣物为干燥衣物;但当投入衣物为湿衣物时,由于洗衣机不能自动判断,仍然会按此重量的干燥衣物进行进水,这样就会导致进水量增多,造成洗涤效率低下、不必要进水过多造成浪费。另外,对于自动投放洗涤剂的洗衣机,也会避免投放的洗涤剂的量过多浪费的问题,因此,在洗衣机洗涤之前,对所投放衣物进行干湿判断是非常有必要的。
有鉴于此,特提出本发明。
发明内容
本发明的目的在于提供一种洗衣机用衣物干湿度判断方法,以实现对洗衣机内衣物干湿度进行精确判断的目的;还涉及一种洗衣机控制方法,利用精确判断得出的衣物干湿度确定洗衣机后续洗涤程序的进水量,以达到何玲调控洗衣机进水量、洗衣机控制精细化的目的。
为实现上述发明目的,采用如下技术方案:
一种洗衣机用衣物干湿度判断方法,对内桶中投放衣物先进行浸湿程序,并对浸湿程序前和浸湿程序后的投放衣物分别均布处理后测量衣物高度,将浸湿程序前后衣物高度差ΔH与设定值相比较,以得出衣物的干湿度。
进一步,对内桶中投放衣物的重量进行检测,并调用与洗衣机中预存的、与检测值相对应的预存值,将预存值做为设定值,以与衣物高度差ΔH相比较。
进一步,所述的设定值包括干燥衣物浸湿程序前后高度差ΔH0和半湿衣物浸湿程序前后高度差ΔH1;
当ΔH≥ΔH0,则判断内桶中投入衣物为干衣物;若ΔH1≤ΔH<ΔH0,则判断内桶中投入衣物为半湿衣物;若0≤ΔH<ΔH1,则判断内桶中投入衣物为全湿衣物。
进一步,具体包括如下步骤,
步骤1)、内桶中投放衣物后,控制内桶旋转一定时间t1,对投放衣物进行均匀分布处理;
步骤2)、对均匀分布后的衣物进行测重和检测高度,得出投放衣物质量M0和浸湿程序前投放衣物高度H1;
步骤3)、执行浸湿程序,向内桶中喷淋进水,令衣物被浸湿;进水过程中和/或进水完毕后,控制内桶旋转一定时间t2,对浸湿衣物进行均匀分布,衣物均匀分布后将内桶中水全部外排;
步骤4)、对均匀分布后的、浸湿后的衣物进行检查高度,得出浸湿程序后投放衣物高度H2;
步骤5)、依据公式ΔH=H1-H2,得出浸湿程序前后衣物高度差ΔH;
步骤6)、将浸湿程序前后衣物高度差ΔH与干燥衣物浸湿程序前后高度差ΔH0和半湿衣物浸湿程序前后高度差ΔH1相比较,得出内桶中投放衣物的干湿度;
进一步优选的,步骤3)中洗衣机浸湿程序过程中向内桶中喷淋进水量为衣物质量M0的一倍。通过将浸湿衣物进水量控制为衣物质量M0的1倍,使得干燥衣物会产生较大的高度差变化、半湿衣物会产生一定的高度差变化、全湿衣物不会产生高度差变化,就可以对不同干燥度衣物的区别体现得出;同时,还使得浸湿过程中的进水量总量得到控制,缩减了洗涤过程中的耗水量。
进一步,依据判断得出的内桶中投放衣物干湿度和投放衣物的重量M0,得出后续洗涤过程中对应的进水量。
进一步,浸湿程序前和浸湿程序后,洗衣机顶部所设距离传感器对洗衣机内桶中同一方向分别进行检测,以获得该方向上衣物上表面与距离传感器之间的距离,依据测量距离和内桶深度,得出衣物高度H1和H2;
优选的,浸湿程序前和浸湿程序后,对内桶中至少两个方向上投放衣物高度分别进行检测,并将各检测值对应相差后将差值进行平均计算,平均值做为检测值ΔH;
进一步优选的,浸湿程序前和浸湿程序后,对内桶中同一方向上投放衣物高度分别进行多次检测,并将各检测值对应平均计算后得出平均值,再将平均值相差后的差值做为检测值ΔH。
进一步,对浸湿程序前后的内桶中投放衣物与内桶顶部所设距离传感器之间的距离分别进行检测,并将检测值相差做为浸湿程序前后衣物高度差ΔH与设定值相比较,以得出衣物的干湿度。
本发明还涉及一种应用上述衣物干湿度判断方法的洗衣机,以实现对内桶中衣物干湿度进行精确判断,进而合理调整洗涤程序中洗衣机的进水量,避免干湿度差异影响洗衣机洗涤效果情况的发生。
一种应用上述衣物干湿度判断方法的洗衣机,包括内桶和外桶;洗衣机上设置有检测内桶中投放衣物高度的距离传感器。
进一步,所述距离传感器设置于内桶顶部,距离传感器的探头向内桶底至少一个方向发出探测光栅,距离传感器的接收端可接收被内桶中投放衣物反射的探测光栅,依据接收到的探测光栅计算内桶中投放衣物的高度。
进一步,洗衣机上还包括对内桶中投放衣物进行重量检测的重量检测单元。
本发明中,所述的洗衣机还可以为滚筒洗衣机,滚筒洗衣机包括外筒和内筒,洗衣机上设有检测内筒中投放衣物高度的距离传感器;同样适用上述方法对内筒中衣物干湿度进行精确判断。
本发明与现有技术相比存在如下有益效果:
1、通过对内桶中衣物浸湿程序前后的高度差进行检测,就可得出衣物浸湿程序前后的变化特征,准确得出投放入内桶中衣物的干湿度;进而,为洗衣机后续洗涤程序提供数据依据,达到精确控制洗衣机进水量的目的。
2、通过上述步骤,使得洗衣机对投入内桶中衣物高度进行准确检测,以得出洗衣机内衣物的准确高度;同时,在对洗衣机内桶中衣物进行高度检测前,需先控制内桶旋转一定时间执行均布程序,令内桶中衣物均匀分布于内桶中,以提高对衣物高度检测的精确度;还有,将前后差值与设定值进行比较判断,使得仅需对内桶中衣物高度进行两侧检测,就可实现对衣物干湿度的准确判断,简化了判断步骤、提高了反应速率。
3、通过在洗衣机上设置可向内桶中发射检测光栅的距离传感器,以对内桶中衣物的高度和/或衣物与距离传感器之间的距离进行精确测量,进而为衣物干湿度判断提供精确检测数据,提高了判断精度。
同时,本发明方法简洁,结构简单,效果显著,适宜推广使用。
附图说明
图1本发明实施例中洗衣机内衣物干湿度判断方法的流程图;
图2本发明另一实施例中洗衣机内衣物干湿度判断方法的流程图。
具体实施方式
下面结合实施例对本发明进行进一步详细的说明。
本发明实施例中介绍了一种洗衣机,其包括安装于机壳内的外桶,套装于外桶中的内桶,所述内桶中投放待洗涤衣物,外桶中进入洗涤水,内外桶之间经内桶上设置的多个脱水孔相连通,以使得洗涤水流入内桶中,通过内桶和/或内桶中波轮、搅拌棒等装置的搅动带动洗涤水对衣物进行洗涤。本发明实施例中,洗衣机上还设置有检测内桶中投放衣物高度的距离传感器,以检测内桶中衣物上表面的高度。
本发明实施例中,介绍了一种应用上述装置对衣物干湿度判断的方法,其包括如下:对内桶中投放衣物先进行浸湿程序,并对浸湿程序前和浸湿程序后的投放衣物分别均布后测量衣物高度,将所测量衣物高度差ΔH与设定值相比较,以得出衣物的干湿度。
通过对内桶中衣物浸湿程序前后的高度差进行检测,就可得出衣物浸湿程序前后的变化特征,准确得出投放入内桶中衣物的干湿度;进而,为洗衣机后续洗涤程序提供数据依据,达到精确控制洗衣机进水量的目的。
实施例一
如图1所示,本实施例中,介绍了一种洗衣机用对衣物干湿度判断的方法,其具体包括如下步骤:
步骤1)、内桶中投放衣物后,控制内桶旋转一定时间t1,对投放衣物进行均匀分布处理;
步骤2)、对均匀分布后的衣物进行测重和检测高度,得出投放衣物质量M0和浸湿程序前投放衣物高度H1;
步骤3)、执行浸湿程序,向内桶中喷淋进水,令衣物被浸湿;进水过程中和/或进水完毕后,控制内桶旋转一定时间t2,对浸湿衣物进行均匀分布,衣物均匀分布后将内桶中水全部外排;
步骤4)、对均匀分布后的、浸湿后的衣物进行检查高度,得出浸湿程序后投放衣物高度H2;
步骤5)、依据公式ΔH=H1-H2,得出浸湿程序前后测量衣物高度差ΔH;
步骤6)、将浸湿程序前后测量衣物高度差ΔH与干燥衣物浸湿前后高度差ΔH0和半湿衣物高度差ΔH1相比较,
当ΔH≥ΔH0,则判断内桶中投入衣物为干衣物;若ΔH1≤ΔH<ΔH0,则判断内桶中投入衣物为半湿衣物;若0≤ΔH<ΔH1,则判断内桶中投入衣物为全湿衣物。
通过上述步骤,使得洗衣机对投入内桶中衣物高度进行准确检测,以得出洗衣机内衣物的准确高度;同时,在对洗衣机内桶中衣物进行高度检测前,需先控制内桶旋转一定时间执行均布程序,令内桶中衣物均匀分布于内桶中,以提高对衣物高度检测的精确度;还有,将前后差值与设定值进行比较判断,使得仅需对内桶中衣物高度进行两侧检测,就可实现对衣物干湿度的准确判断,简化了判断步骤、提高了反应速率。
本实施例中,步骤3)中洗衣机浸湿程序过程中向内桶中喷淋进水量为衣物质量M0的一倍。通过将浸湿衣物进水量控制为衣物质量M0的1倍,使得干燥衣物会产生较大的高度差变化、半湿衣物会产生一定的高度差变化、全湿衣物不会产生高度差变化,就可以对不同干燥度衣物的区别体现得出;同时,还使得浸湿过程中的进水量总量得到控制,缩减了洗涤过程中的耗水量。
本实施例中,在浸湿程序前、即上述步骤2)中,和浸湿程序后、即上述步骤4)中,洗衣机顶部所设距离传感器对洗衣机内桶中同一方向分别进行检测,以获得该方向上衣物上表面与距离传感器之间的距离,依据测量距离和内桶深度,得出衣物高度H1和H2。
通过对浸湿程序前后内桶中任一相同方向上衣物高度进行检测,以准确得出该方向上衣物高度变化,依据该变化得出准确的衣物高度变化检测值ΔH,进而实现对内桶中衣物干湿度准确判断的目的。
优选的,本实施例中,浸湿程序前和浸湿程序后,对内桶中至少两个方向上投放衣物高度分别进行检测,以得出第一检测方向、第二方向…第n(n为大于等于2的正整数)方向上浸湿程序前的高度H11、H12…H1n;第一检测方向、第二检测方向…第n方向上浸湿程序后的高度H21、H22…H2n。再将各检测值对应相差后,以得出第一检测方向、第二检测方向…的高度差值ΔH1=H11-H21、ΔH2=H12-H22…ΔHn=H1n-H2n。最后,将各差值进行平均计算,平均值做为检测值ΔH=(ΔH1+ΔH2…+ΔHn)/n。
通过对内桶中不同方向上衣物高度差分别进行检测并将各差值平均计算得出平均值做为检测值ΔH,以提高检测精度,降低衣物分布不均造成检测误差情况的几率。
进一步优选的,本实施例中,浸湿程序前和浸湿程序后,对内桶中同一方向上投放衣物高度分别进行多次检测,以得出浸湿程序前第一次、第二次…第n(n为大于等于2的正整数)次的衣物高度H11、H12…H1n;浸湿程序后第一次、第二次…第n次的衣物高度H21、H22…H2n。再将各检测值进行平均计算以得出,浸湿程序前衣物高度H1=(H11+H12…+H1n)/n,浸湿程序后衣物高度H2=(H21+H22…+H2n)/n。最后,将平均值相差后,得出浸湿程序前后衣物高度差检测值ΔH=H1-H2。
通过对浸湿程序前后内桶中衣物高度分别进行多次检测并将各检测值平均后相差得出检测值ΔH,以进一步提高检测精度,避免传感器检测误差造成测量精度下降情况的发生。
本实施例中,步骤3)中,自洗衣机内桶顶部向内桶中喷淋进水,以使喷淋水自上向下落入内桶中、并对内桶中所投放衣物进行浸湿处理。由于在浸湿程序中,采用喷淋进水,使得进水与衣物的接触面积增大,提高了浸湿效率。
实施例二
本实施例与上述实施例一的区别在于:对内桶中投放衣物浸湿程序前后衣物上表面与距离传感器之间的距离差进行检测,并将距离差与设定值相比较,以得出衣物的干湿度。
通过将距离传感器与衣物上表面之间距离差进行检测,使得距离传感器所检测距离可直接进行相差得出内桶中投放衣物高度差的变化,避免了将距离传感器检测值换算为投放衣物高度后再相差的步骤,因此其与上述实施例一相比控制步骤更为简洁、洗衣机运行效率更为高效。
如图2所示,本实施例中,介绍了一种洗衣机用对衣物干湿度判断的方法,其具体包括如下步骤:
步骤11)、内桶中投放衣物后,控制内桶旋转一定时间t1,对投放衣物进行均匀分布处理;
步骤12)、对均匀分布后的衣物进行测重和检测高度,得出投放衣物质量M0和浸湿程序前距离传感器与投放衣物之间距离L1;
步骤13)、执行浸湿程序,向内桶中喷淋进水,令衣物被浸湿;进水过程中和/或进水完毕后,控制内桶旋转一定时间t2,对浸湿衣物进行均匀分布,衣物均匀分布后将内桶中水全部外排;
步骤14)、对均匀分布后的、浸湿后的衣物进行检查高度,得出浸湿程序后距离传感器与投放衣物之间距离L2;
步骤15)、依据公式ΔL=L2-L1,得出浸湿程序前后测量衣物高度差ΔL;
步骤16)、将浸湿程序前后测量衣物高度差ΔL与干燥衣物浸湿前后高度差ΔL0和半湿衣物高度差ΔL1相比较,
当ΔL≥ΔL0,则判断内桶中投入衣物为干衣物;若ΔL1≤ΔL<ΔL0,则判断内桶中投入衣物为半湿衣物;若0≤ΔL<ΔL1,则判断内桶中投入衣物为全湿衣物。
通过上述步骤,同样可以使得洗衣机对投入内桶中衣物高度进行准确检测,以得出洗衣机内衣物的准确高度;同时,由于是将距离传感器的距离检测值直接作为判断依据,缩减了转换步骤,加快了判断过程。
实施例三
本实施例中,所述距离传感器设置于内桶顶部,距离传感器的探头向内桶底至少一个方向发出探测光栅,距离传感器的接收端可接收被内桶中投放衣物反射的探测光栅,依据接收到的探测光栅计算内桶中投放衣物的高度、和/或距离传感器与内桶中投放衣物之间的距离。
优选的,所述距离传感器安装于内桶上方的洗衣机控制盘座上,距离传感器的探头向内桶中方向发射探测光栅。进一步优选的,所述距离传感器的探头可旋转移动,令探头可向内桶中多个方向发射探测光栅,以对多个方向上的内桶中衣物高度和/或衣物与距离传感器之间距离进行检测。
本实施例中,洗衣机上还包括对内桶中投放衣物进行重量检测的重量检测单元,所述的重量检测单元可以为安装于外桶底部的重量传感器等任一现有可对内桶中投放衣物进行重量检测的装置。
实施例四
本实施例中,介绍了一种洗衣机控制方法,其包括:依据上述实施例一或二所述的判断方法得出内桶中投放衣物的干湿度和投放衣物的重量M0,得出后续洗涤过程中对应的进水量,以避免进水过多、过少情况的发生,进而实现对洗衣机洗涤程序进行精确控制的目的。
本实施例中,当实施例一或二中判断洗衣机投放衣物为干燥衣物后,洗衣机内负载重量为M0,洗衣机洗涤水进水量为M0的对应值;当实施例一或二中判断洗衣机投放衣物为半湿衣物后,洗衣机内负载重量为M0*设定值a%,洗衣机洗涤水进水量为M0*a%的对应值;当实施例一或二中判断洗衣机投放衣物为全湿衣物后,洗衣机内负载重量为M0*设定值b%,洗衣机洗涤水进水量为M0*b%的对应值。本实施例中,上述的a和b均大于0、小于100,且b小于a。
通过对洗衣机内衣物的干湿度进行精确判断,以合理控制、调整洗衣机洗涤程序中的进水量,以避免因衣物干湿度不同导致洗衣机洗涤效果显著差异情况的发生,进一步提高了洗衣机的精细化控制。
实施例五
本实施例与上述实施例一至四的区别在于:上述洗衣机为滚筒洗衣机,滚筒洗衣机包括内筒和外筒,还包括对内筒中衣物高度进行检测的距离传感器;所述的距离传感器可以安装于内桶口的顶部,距离传感器的探头向内筒底部的至少一个方向发射检测光栅,以对内桶中衣物高度进行检测。
同时,本实施例中,滚筒洗衣机依据对内桶中衣物浸湿程序前后的高度差进行检测,以利用上述实施例一或二的方法判断出内桶中衣物的干湿度。
上述实施例中的实施方案可以进一步组合或者替换,且实施例仅仅是对本发明的优选实施例进行描述,并非对本发明的构思和范围进行限定,在不脱离本发明设计思想的前提下,本领域中专业技术人员对本发明的技术方案作出的各种变化和改进,均属于本发明的保护范围。

Claims (10)

  1. 一种洗衣机用衣物干湿度判断方法,其特征在于:对内桶中投放衣物先进行浸湿程序,并对浸湿程序前和浸湿程序后的投放衣物分别均布处理后测量衣物高度,将浸湿程序前后衣物高度差ΔH与设定值相比较,以得出衣物的干湿度。
  2. 根据权利要求1所述的一种洗衣机用衣物干湿度判断方法,其特征在于:对内桶中投放衣物的重量进行检测,并调用与洗衣机中预存的、与检测值相对应的预存值,将预存值做为设定值,以与衣物高度差ΔH相比较。
  3. 根据权利要求2所述的一种洗衣机用衣物干湿度判断方法,其特征在于:所述的设定值包括干燥衣物浸湿程序前后高度差ΔH0和半湿衣物浸湿程序前后高度差ΔH1;
    当ΔH≥ΔH0,则判断内桶中投入衣物为干衣物;若ΔH1≤ΔH<ΔH0,则判断内桶中投入衣物为半湿衣物;若0≤ΔH<ΔH1,则判断内桶中投入衣物为全湿衣物。
  4. 根据权利要求1至3任一所述的一种洗衣机用衣物干湿度判断方法,其特征在于:具体包括如下步骤,
    步骤1)、内桶中投放衣物后,控制内桶旋转一定时间t1,对投放衣物进行均匀分布处理;
    步骤2)、对均匀分布后的衣物进行测重和检测高度,得出投放衣物质量M0和浸湿程序前投放衣物高度H1;
    步骤3)、执行浸湿程序,向内桶中喷淋进水,令衣物被浸湿;进水过程中和/或进水完毕后,控制内桶旋转一定时间t2,对浸湿衣物进行均匀分布,衣物均匀分布后将内桶中水全部外排;
    步骤4)、对均匀分布后的、浸湿后的衣物进行检查高度,得出浸湿程序后投放衣物高度H2;
    步骤5)、依据公式ΔH=H1-H2,得出浸湿程序前后衣物高度差ΔH;
    步骤6)、将浸湿程序前后衣物高度差ΔH与干燥衣物浸湿程序前后高度差ΔH0和半湿衣物浸湿程序前后高度差ΔH1相比较,得出内桶中投放衣物的干湿度;
    进一步优选的,步骤3)中洗衣机浸湿程序过程中向内桶中喷淋进水量为衣物质量M0的一倍。
  5. 根据权利要求1至4任一所述的一种洗衣机用衣物干湿度判断方法,其特征在于:依据判断得出的内桶中投放衣物干湿度和投放衣物的重量M0,得出后续洗涤过程中对应的进水量。
  6. 根据权利要求4所述的一种洗衣机用衣物干湿度判断方法,其特征在于:浸湿程序前和浸湿程序后,洗衣机顶部所设距离传感器对洗衣机内桶中同一方向分别进行检测,以获得该方向上衣物上表面与距离传感器之间的距离,依据测量距离和内桶深度,得出衣物高度H1和H2;
    优选的,浸湿程序前和浸湿程序后,对内桶中至少两个方向上投放衣物高度分别进行检测,并将各检测值对应相差后将差值进行平均计算,平均值做为检测值ΔH;
    进一步优选的,浸湿程序前和浸湿程序后,对内桶中同一方向上投放衣物高度分别进行多次检测,并将各检测值对应平均计算后得出平均值,再将平均值相差后的差值做为检测值ΔH。
  7. 根据权利要求1所述的一种洗衣机用衣物干湿度判断方法,其特征在于:对浸湿程序前后的内桶中投放衣物与内桶顶部所设距离传感器之间的距离分别进行检测,并将检测值相差做为浸湿程序前后衣物高度差ΔH与设定值相比较,以得出衣物的干湿度。
  8. 一种应用如上权利要求1至7任一所述衣物干湿度判断方法的洗衣机,包括内桶和外桶;其特征在于:洗衣机上设置有检测内桶中投放衣物高度的距离传感器。
  9. 根据权利要求8所述的一种洗衣机,其特征在于:所述距离传感器设置于内桶顶部,距离传感器的探头向内桶底至少一个方向发出探测光栅,距离传感器的接收端可接收被内桶中投放衣物反射的探测光栅,依据接收到的探测光栅计算内桶中投放衣物的高度。
  10. 根据权利要求8或9所述的一种洗衣机,其特征在于:洗衣机上还包括对内桶中投放衣物进行重量检测的重量检测单元。
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