WO2010102504A1 - 一种泡沫检测方法、泡沫检测装置及滚筒洗衣机 - Google Patents

一种泡沫检测方法、泡沫检测装置及滚筒洗衣机 Download PDF

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Publication number
WO2010102504A1
WO2010102504A1 PCT/CN2009/076206 CN2009076206W WO2010102504A1 WO 2010102504 A1 WO2010102504 A1 WO 2010102504A1 CN 2009076206 W CN2009076206 W CN 2009076206W WO 2010102504 A1 WO2010102504 A1 WO 2010102504A1
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Prior art keywords
washing machine
drum washing
indication signal
dehydration process
detecting
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PCT/CN2009/076206
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English (en)
French (fr)
Inventor
邓宝宁
刘建伟
蒋洪波
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深圳和而泰智能控制股份有限公司
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Publication of WO2010102504A1 publication Critical patent/WO2010102504A1/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
    • 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
    • D06F33/42Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/06Arrangements for preventing or destroying scum
    • 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
    • D06F33/38Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/087Water level measuring or regulating devices
    • 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
    • D06F2103/18Washing liquid level
    • 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
    • D06F2105/08Draining of washing liquids

Definitions

  • Foam detecting method Foam detecting method, foam detecting device and drum washing machine
  • the present invention relates to the field of electronics, and in particular to a bubble detecting method, a bubble detecting device and a drum washing machine. Background technique
  • the drum washing machine drives the clothes to the top of the inner cylinder through the rotation of a sealed metal inner cylinder, and then allows the clothes to fall freely, and the laundry is beaten to achieve the purpose of washing. Therefore, the user can use the drum washing machine to compare Less water and detergent or other detergents can achieve better washing results.
  • the drum washing machine In order to ensure the tightness of the drum washing machine, the drum washing machine generally has only one water inlet and the water outlet to communicate with the outside, and the pressure inside the cylinder is large.
  • the amount of the washing powder is relatively difficult to grasp, and the different cloth quality and the amount of the cloth may cause the washing powder to have different results.
  • If the user puts too much detergent in the washing it will cause too much foam in the inner cylinder, and the sealing performance of the drum machine is better, as the washing process progresses, especially during the dehydration process.
  • the cylinder rotates at a high speed, the bubbles in the inner cylinder are hard to be broken and more and more, and the final result is that the foam overflows from the water inlet and/or the water outlet, resulting in very serious consequences.
  • the technical problem to be solved by the embodiments of the present invention is to provide a bubble detecting method, a bubble detecting device and a drum washing machine, which can determine whether the bubble generated by the drum washing machine during the dehydration process exceeds the standard by detecting the water level, thereby enabling the corresponding Eliminate the treatment of foaming and avoid the consequences of foaming.
  • the embodiment of the present invention adopts the following technical solutions:
  • a method for detecting bubbles comprising:
  • a bubble detecting device comprising:
  • a detecting unit configured to detect a water level of the drum washing machine during the dehydration process
  • a processing unit configured to determine, according to the result of the detecting, whether the bubble generated by the drum washing machine during the dehydration process exceeds the standard.
  • a drum washing machine comprising:
  • the bubble detecting device is configured to detect the water level of the drum washing machine during the dehydration process, and according to the result of the detecting, determine whether the bubble generated by the drum washing machine during the dehydration process exceeds the standard.
  • FIG. 1 is a schematic view showing a specific embodiment of a bubble detecting method of the present invention
  • Figure 2 is a schematic view showing a specific embodiment of the bubble detecting device of the present invention.
  • FIG. 3 is a schematic diagram showing the circuit structure of the detecting unit 201 according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing another line structure of the detecting unit 201 according to the embodiment of the present invention. detailed description
  • the embodiment of the invention provides a bubble detecting method and a corresponding bubble detecting device and a drum washing machine, and can determine whether the bubble generated by the drum washing machine during the dehydration process exceeds the standard according to the detection result of the water level in the dehydration process of the drum washing machine. Therefore, the treatment corresponding to the elimination of the bubble can be performed to avoid the consequences caused by the bubble overflow.
  • FIG. 1 is a schematic view of a specific embodiment of a bubble detecting method of the present invention.
  • the drum washing machine finishes the rinsing process, it enters a dehydration process, and the dehydration process generally performs drainage first, and after the water is drained, the inner cylinder is rotated at a high speed to dehydrate the water.
  • the method mainly includes:
  • a second indication signal that is, a second voltage signal, the second voltage signal corresponding to the voltage value U2; 103.
  • Determine, according to the first indication signal, the second indication signal, and the preset threshold U3, whether the difference ⁇ U between the first indication signal and the second indication signal exceeds a threshold value U3, where ⁇ U U2-U1, if Then, the bubble generated by the drum washing machine during the dehydration process exceeds the standard, and executes 104, otherwise 105 is performed.
  • U3 is an empirical value obtained by experiments, and different U3 values of different inner cylinders or different structures of washing machines are generally different.
  • ⁇ ⁇ will be within a certain range and will not exceed U3.
  • the pressure inside the inner cylinder will continue to increase, at this time U2
  • U2 The value will also become larger, which may cause ⁇ ⁇ to exceed U3 ;
  • the drum washing machine is controlled to stop the dehydration process and restart the rinsing process before the dehydration process, and the bubble is washed away and then subjected to the dehydration process;
  • the first indication signal and the second indication signal are not limited to a voltage signal, and may be a frequency signal, and the corresponding method of processing is similar to the above.
  • the drum washing machine may include a bubble detecting device as shown in Fig. 2.
  • the bubble detecting device mainly includes a detecting unit 201 and a processing unit 202, wherein the processing unit 202 includes a determining unit 203 and a control unit 204.
  • the detecting unit 201 is connected to the processing unit 202, and the determining unit 203 is connected to the control unit 204.
  • the detecting unit 201 can include a first detecting unit for detecting the water level when the drum washing machine is drained during the dehydration process, and obtaining a first indication signal, that is, a first voltage signal, the first voltage signal corresponding to a voltage value of U1;
  • the detecting unit 201 may further include a second detecting unit, configured to detect a water level when the inner drum of the drum washing machine rotates at a high speed during dehydration after the draining is completed, to obtain a second indication signal, that is, a second voltage signal, the second voltage
  • a second indication signal that is, a second voltage signal, the second voltage
  • the signal corresponding voltage value is U2;
  • the detecting unit 201 may be a water level pressure sensor that generates a voltage signal, and mainly includes a line structure as shown in FIG. 3:
  • the water level meter includes three ports, the first port is connected to the +5 volt power source, the first port is grounded through the first capacitor C1, and the second port is outputted through the first resistor R1, the second resistor R3, and the third resistor R4. 101 (ie, the first indication signal and the second indication signal), the second port passes the first power The resistor R1, the second resistor R3, and the second capacitor C2 are grounded, and the third port is grounded and connected to the first resistor R1 and the second resistor R3 through the fourth resistor R2;
  • the determining unit 203 may include a storage unit for storing a preset threshold.
  • U3 is an empirical value obtained by experiments, and different U3 values of different inner cylinders or different structures of washing machines are generally different;
  • the control unit 204 is configured to: when the judging unit 203 determines that the bubble generated by the drum washing machine is excessive during the dehydration process, control the drum washing machine to stop the dehydration process and restart the rinsing process before the dehydration process, rinse the bubble and then perform the dehydration process. .
  • the processing unit 202 may be a Micro Controller Unit (MCU) or other processor.
  • MCU Micro Controller Unit
  • the first indication signal and the second indication signal are not limited to a voltage signal, and may be a frequency signal, and the corresponding method is similar to the above, but the detecting unit 201 is a water level pressure sensor that generates a frequency signal. It mainly includes the line structure as shown in Figure 4:
  • a water level meter including three ports, the first port of which outputs a signal 102 (ie, the first indication signal, the second indication signal) through the first resistor R8, the first inverter IC1C, and the second resistor R9, and is grounded.
  • the port is connected between the first resistor R8 and the first inverter IC1C through the third resistor R5 and the fourth resistor R7, and the third port is grounded and connected to the first resistor R8 through the fifth resistor R6 and the second inverter IC1A.
  • the third port is connected between the first resistor R8 and the first inverter IC1C through the fifth resistor R6, the third inverter IC1B, and the third port is connected through the fifth resistor R6. It is between the third resistor R5 and the fourth resistor R7.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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

Description

一种泡沫检测方法、 泡沫检测装置及滚筒洗衣机 技术领域
本发明涉及电子领域, 尤其涉及一种泡沬检测方法、 泡沬检测装置及滚 筒洗衣机。 背景技术
滚筒洗衣机通过一个密封的金属内筒的转动, 带动衣服到内筒的顶端, 然后让衣服自由落体, 通过模拟衣服的摔打来达到洗涤的目的, 因此, 用户 在使用滚筒洗衣机的时候,可以使用比较少的水和洗衣粉或其他的洗洁剂就 能达到比较好的洗涤效果。
为了保证滚筒洗衣机的密封性,滚筒洗衣机一般只有一个进水口和排水 口与外界连通, 筒内压力较大。 用户在洗衣服的时候, 洗衣粉的放入量比较 难把握, 而不同的布质和布量也会导致洗衣粉产生泡沬的结果不同。如果用 户在洗衣服的时候放入过多的洗衣粉, 则会导致内筒中产生的泡沬过多, 而 滚筒机的密闭性较好, 随着洗涤过程的进行, 特别是在脱水过程中内筒高速 旋转时, 内筒中的泡沬难以破灭且会越来越多, 最后的结果必然是泡沬从进 水口和 /或排水口溢出, 从而导致非常严重的后果。
发明内容
本发明实施例所要解决的技术问题在于, 提供一种泡沬检测方法、 泡沬 检测装置及滚筒洗衣机, 可通过检测水位, 判断滚筒洗衣机在脱水过程中产 生的泡沬是否超标, 从而能进行对应消除泡沬的处理, 避免因泡沬溢出所导 致的后果。
为解决上述技术问题, 本发明实施例采用如下技术方案:
一种泡沬检测方法, 包括:
检测滚筒洗衣机在脱水过程中的水位;
根据所述检测的结果, 判断所述滚筒洗衣机在脱水过程中产生的泡沬是 否超标。 一种泡沬检测装置, 包括:
检测单元, 用于检测滚筒洗衣机在脱水过程中的水位;
处理单元, 用于根据所述检测的结果, 判断所述滚筒洗衣机在脱水过程 中产生的泡沬是否超标。
一种滚筒洗衣机, 包括:
泡沬检测装置, 用于检测滚筒洗衣机在脱水过程中的水位, 并根据所述 检测的结果, 判断所述滚筒洗衣机在脱水过程中产生的泡沬是否超标。
本发明实施例的有益效果是:
通过一种泡沬检测方法, 通过检测滚筒洗衣机在脱水过程中的水位, 并 根据所述检测的结果, 判断所述滚筒洗衣机在脱水过程中产生的泡沬是否超 标, 从而能进行对应消除泡沬的处理, 避免因泡沬溢出所导致的后果。
下面结合附图对本发明实施例作进一步的详细描述。 附图说明
图 1是本发明的泡沬检测方法的具体实施例示意图;
图 2是本发明的泡沬检测装置的具体实施例示意图;
图 3是本发明实施例的检测单元 201的线路结构示意图;
图 4是本发明实施例的检测单元 201的另一线路结构示意图。 具体实施方式
本发明实施例通过提供一种泡沬检测方法及对应的泡沬检测装置和滚筒 洗衣机, 可根据滚筒洗衣机在脱水过程中的水位的检测结果, 判断滚筒洗衣 机在脱水过程中产生的泡沬是否超标, 从而能进行对应消除泡沬的处理, 避 免因泡沬溢出所导致的后果。
图 1 是本发明的泡沬检测方法的具体实施例示意图, 滚筒洗衣机结束漂 洗过程后, 进入脱水过程, 脱水过程一般先进行排水, 待水排干后其内筒再 高速旋转来脱水, 参照该图, 该方法主要包括:
101, 检测滚筒洗衣机在脱水过程中排水完毕时的水位, 得到第一指示信 号, 即第一电压信号, 该第一电压信号对应电压值为 U1 ;
102, 排水完毕后, 检测滚筒洗衣机在脱水过程中其内筒高速旋转时的水 位,得到第二指示信号, 即第二电压信号,该第二电压信号对应电压值为 U2; 103, 根据第一指示信号、 第二指示信号, 以及预设定的阈值 U3 , 判断 第一指示信号与第二指示信号的差值 Δ U是否超过阈值 U3 ,其中 Δ U=U2-U1, 若是, 则滚筒洗衣机在脱水过程中产生的泡沬超标, 并执行 104, 否则执行 105, 具体地, U3 是经实验得到的经验值, 不同的内筒或不同结构的洗衣机 对应的 U3值一般不同, 当产生的泡沬很少或没有超过一定范围时, Δ υ会在 一定范围之内, 不会超过 U3 , 当泡沬超出一定范围时, 内筒内的压力会持续 增大, 此时 U2的值也会变大, 从而可能导致 Δ υ超过 U3 ;
104, 当滚筒洗衣机在脱水过程中产生的泡沬超标时, 控制滚筒洗衣机停 止脱水过程并重新开始脱水过程之前的漂洗过程, 把泡沬冲洗掉再进行脱水 过程;
105, 继续进行正常的脱水过程。
作为一种实施方式, 上述第一指示信号、 第二指示信号不限于电压信号, 也可以是频率信号, 其对应方法的处理方式与上述类似。
相应地, 下面对本发明实施例的泡沬检测装置及滚筒洗衣机进行说明, 其中滚筒洗衣机可包括如图 2所示的泡沬检测装置。
图 2是本发明的泡沬检测装置的具体实施例示意图, 参照该图, 该泡沬 检测装置主要包括检测单元 201、 处理单元 202, 其中, 处理单元 202包括判 断单元 203、 控制单元 204;
检测单元 201与处理单元 202相连,判断单元 203与控制单元 204相连; 检测单元 201可包括第一检测单元, 用于检测滚筒洗衣机在脱水过程中 排水完毕时的水位, 得到第一指示信号, 即第一电压信号, 该第一电压信号 对应电压值为 U1 ;
检测单元 201还可包括第二检测单元, 用于在排水完毕后, 检测滚筒洗 衣机在脱水过程中其内筒高速旋转时的水位, 得到第二指示信号, 即第二电 压信号, 该第二电压信号对应电压值为 U2;
此时, 检测单元 201可以是产生电压信号的水位压力传感器, 主要包括 如图 3所示的线路结构:
包括三个端口的水位计, 其第一端口与 +5伏的电源相连, 第一端口通过 第一电容 C1接地, 第二端口通过第一电阻 Rl、 第二电阻 R3、 第三电阻 R4 输出信号 101 (即上述第一指示信号、 第二指示信号), 第二端口通过第一电 阻 Rl、 第二电阻 R3、 第二电容 C2接地, 第三端口接地并通过第四电阻 R2 连接到第一电阻 R1与第二电阻 R3之间;
判断单元 203可包括存储单元, 用于存储预设定的阈值, 具体地, U3是 经实验得到的经验值, 不同的内筒或不同结构的洗衣机对应的 U3 值一般不 同;
判断单元 203还可包括泡沬判断单元, 用于根据第一指示信号、 第二指 示信号, 以及预设定的阈值 U3 , 判断第一指示信号与第二指示信号的差值 Δ U是否超过阈值 U3 , 其中 A U=U2-U1, 若是, 则滚筒洗衣机在脱水过程中产 生的泡沬超标, 具体地, 当产生的泡沬很少或没有超过一定范围时, Δ υ 会 在一定范围之内, 不会超过 U3 , 当泡沬超出一定范围时, 内筒内的压力会持 续增大, 此时 U2的值也会变大, 从而可能导致 Δ υ超过 U3;
控制单元 204, 用于当判断单元 203判断为滚筒洗衣机在脱水过程中产 生的泡沬超标时, 控制滚筒洗衣机停止脱水过程并重新开始脱水过程之前的 漂洗过程, 把泡沬冲洗掉再进行脱水过程。
作为一种实施方式, 处理单元 202可以是微处理单元 (Micro Controller Unit, MCU) 或其他处理器。
作为一种实施方式, 上述第一指示信号、 第二指示信号不限于电压信号, 也可以是频率信号, 其对应方法的处理方式与上述类似, 但检测单元 201是 产生频率信号的水位压力传感器, 主要包括如图 4所示的线路结构:
包括三个端口的水位计,其第一端口通过第一电阻 R8、第一反相器 IC1C、 第二电阻 R9输出信号 102 (即上述第一指示信号、 第二指示信号) 并接地, 第二端口通过第三电阻 R5、 第四电阻 R7连接到第一电阻 R8与第一反相器 IC1C之间, 第三端口接地并通过第五电阻 R6、第二反相器 IC1A连接到第一 电阻 R8与第一反相器 IC1C之间, 第三端口通过第五电阻 R6、 第三反相器 IC1B连接到第一电阻 R8与第一反相器 IC1C之间, 第三端口通过第五电阻 R6连接到第三电阻 R5与第四电阻 R7之间。
采用水位压力传感器进行泡沬检测, 简单方便, 易于实现。
另外, 本领域普通技术人员可以理解实现上述实施例方法中的全部或部 分流程, 是可以通过程序来指令相关的硬件来完成, 所述的程序可存储于一 计算机可读存储介质中, 该程序在执行时, 可包括如上述各方法的实施例的 流程。 其中, 所述的存储介质可为磁碟、 光盘、 只读存储记忆体 (Read-Only Memory, ROM ) 或随机存储记忆体 ( Random Access Memory, RAM ) 等。
以上所述是本发明的具体实施方式, 应当指出, 对于本技术领域的普通 技术人员来说, 在不脱离本发明原理的前提下, 还可以做出若干改进和润饰, 这些改进和润饰也视为本发明的保护范围。

Claims

权利要求书
1、 一种泡沬检测方法, 其特征在于, 包括:
检测滚筒洗衣机在脱水过程中的水位;
根据所述检测的结果, 判断所述滚筒洗衣机在脱水过程中产生的泡沬是 否超标。
2、 如权利要求 1所述的方法, 其特征在于, 检测滚筒洗衣机在脱水过程 中的水位具体包括:
检测所述滚筒洗衣机在所述脱水过程中排水完毕时的水位, 得到第一指 示信号;
检测所述滚筒洗衣机在所述脱水过程中其内筒高速旋转时的水位, 得到 第二指示信号,
所述根据所述检测的结果, 判断所述滚筒洗衣机在脱水过程中产生的泡 沬是否超标具体包括:
根据所述第一指示信号、 第二指示信号, 以及预设定的阈值, 判断所述 第一指示信号与所述第二指示信号对应的差值是否超过所述阈值, 若是, 则 所述滚筒洗衣机在脱水过程中产生的泡沬超标。
3、 如权利要求 2所述的方法, 其特征在于, 所述第一指示信号、 所述第 二指示信号均为电压信号, 或者, 所述第一指示信号、 所述第二指示信号均 为频率信号。
4、 如权利要求 1所述的方法, 其特征在于, 所述方法还包括: 当所述滚筒洗衣机在脱水过程中产生的泡沬超标时, 控制所述滚筒洗衣 机停止所述脱水过程并重新开始所述脱水过程之前的漂洗过程。
5、 一种泡沬检测装置, 其特征在于, 包括:
检测单元, 用于检测滚筒洗衣机在脱水过程中的水位;
处理单元, 用于根据所述检测的结果, 判断所述滚筒洗衣机在脱水过程 中产生的泡沬是否超标。
6、 如权利要求 5所述的装置, 其特征在于, 所述处理单元包括: 判断单元, 用于根据所述检测的结果, 判断所述滚筒洗衣机在脱水过程 中产生的泡沬是否超标;
控制单元, 用于当所述判断单元判断为所述滚筒洗衣机在脱水过程中产 生的泡沬超标时, 控制所述滚筒洗衣机停止所述脱水过程并重新开始所述脱 水过程之前的漂洗过程。
7、 如权利要求 6所述的装置, 其特征在于, 所述检测单元包括: 第一检测单元, 用于检测所述滚筒洗衣机在所述脱水过程中排水完毕时 的水位, 得到第一指示信号;
第二检测单元, 用于检测所述滚筒洗衣机在所述脱水过程中其内筒高速 旋转时的水位, 得到第二指示信号,
所述判断单元包括:
存储单元, 用于存储预设定的阈值;
泡沬判断单元, 用于根据所述第一指示信号、 第二指示信号, 以及所述 阈值, 判断所述第一指示信号与所述第二指示信号对应的差值是否超过所述 阈值, 若是, 则所述滚筒洗衣机在脱水过程中产生的泡沬超标。
8、 如权利要求 7所述的装置, 其特征在于, 所述第一指示信号、 所述第 二指示信号均为电压信号, 或者, 所述第一指示信号、 所述第二指示信号均 为频率信号。
9、 如权利要求 5所述的装置, 其特征在于, 所述检测单元为水位压力传 感器, 所述处理单元为微处理单元。
10、 一种滚筒洗衣机, 其特征在于, 包括:
泡沬检测装置, 用于检测滚筒洗衣机在脱水过程中的水位, 并根据所述 检测的结果, 判断所述滚筒洗衣机在脱水过程中产生的泡沬是否超标。
PCT/CN2009/076206 2009-03-11 2009-12-29 一种泡沫检测方法、泡沫检测装置及滚筒洗衣机 WO2010102504A1 (zh)

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