WO2015039390A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2015039390A1
WO2015039390A1 PCT/CN2013/089219 CN2013089219W WO2015039390A1 WO 2015039390 A1 WO2015039390 A1 WO 2015039390A1 CN 2013089219 W CN2013089219 W CN 2013089219W WO 2015039390 A1 WO2015039390 A1 WO 2015039390A1
Authority
WO
WIPO (PCT)
Prior art keywords
boom
washing machine
sensor module
boom assembly
photoelectric sensor
Prior art date
Application number
PCT/CN2013/089219
Other languages
English (en)
French (fr)
Inventor
黄升野
康菲
殷培杰
Original Assignee
无锡小天鹅股份有限公司
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 CN201310436742.4A external-priority patent/CN103628277A/zh
Application filed by 无锡小天鹅股份有限公司 filed Critical 无锡小天鹅股份有限公司
Publication of WO2015039390A1 publication Critical patent/WO2015039390A1/zh

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Classifications

    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • D06F34/18—Condition of the laundry, e.g. nature or 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
    • D06F2103/04—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
    • D06F2103/08—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
    • D06F2103/14—Supply, recirculation or draining of washing liquid
    • 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
    • D06F2103/26—Unbalance; Noise level

Definitions

  • the invention relates to the technical field of household appliance manufacturing, and in particular to a washing machine. Background technique
  • the pulsator washing tub is suspended from the box by four suspension rod assemblies with damping characteristics.
  • the four damper booms are subjected to the gravity of the washing machine drum and absorb the impact energy generated by the washing tub during washing and dehydration to ensure the smooth operation of the washing machine.
  • the various movement states of the washing tub can cause changes in the force of the boom.
  • the movement state of the washing tub is generally monitored by a mechanical type of bucket switch to judge whether the displacement of the washing tub is too large, so that the washing machine has a risk of colliding with the cabinet.
  • this judgment is only the switching control of the displacement of the washing tub, and the weight and the moving state of the washing tub cannot be accurately sensed.
  • the general sensor senses the displacement of the washing tub to judge whether the vibration is excessive during the dehydration process of the washing machine.
  • the weight sensing combined with the displacement sensing application is less.
  • the weight and displacement of the washing tub will change significantly in different processes, and the user adds the laundry to the washing tub, and the weight of the whole bucket. It will increase, the weight of the barrel will increase during the influent process, and the weight of the barrel will decrease during the drainage process.
  • the dehydration process will vibrate due to the deviation of the laundry in the dewatering barrel. Therefore, how to control the operation of the washing machine according to the weight of the washing tub or the displacement of the washing tub becomes an urgent problem to be solved. Summary of the invention
  • the present invention aims to solve at least one of the above technical problems to some extent.
  • an object of the present invention is to provide a washing machine which can more accurately judge or know the weight and/or displacement of the washing machine barrel, and control the washing machine to operate more smoothly by more accurate real-time monitoring of the running state of the barrel.
  • a washing machine includes: a tank; a tub body, wherein the tub body is disposed in the tank;
  • a boom assembly the boom assembly is respectively connected to the casing and the barrel; a photoelectric sensor module, the photoelectric sensor module is associated with at least one of the boom assemblies; and a controller, the controller Connected to the photosensor module; wherein the photosensor module senses a change in the force of the boom assembly, converts the force change into an electrical signal, and transmits the signal to the controller, the controller according to the The electrical signal determines the weight and/or displacement of the barrel.
  • the sensor module is associated with the sensor module, and the weight change or the displacement change of the barrel can be monitored more accurately in real time, and the measured electrical signal is transmitted to the controller to control the washing machine to be more smoothly. run.
  • washing machine may further have the following additional technical features:
  • the photosensor module includes a compression spring body and a photoelectric displacement sensor
  • the photoelectric displacement sensor includes a light source emitting end and a light receiving end; when the boom assembly is subjected to a force change, Hanger The compression spring body of the photosensor module associated with the component is deformed, and the reflected light is captured by the light receiving end and converted into a corresponding electrical signal.
  • the photosensor module is provided on the at least one boom assembly.
  • the at least one boom assembly comprises a boom, a spring sleeved on the boom; and a compression spring body of the photoelectric sensor module is coupled to the boom of the boom assembly.
  • the boom assembly further includes a suspension leg disposed at an upper end of the boom and connected to the casing; a spring sleeve, the spring sleeve is disposed on the a spring disposed in the spring sleeve and sleeved on the boom, the upper end of the spring abutting the spring sleeve; and a foot connected to the photoelectric sensor module, A foot is sleeved at a lower end of the boom, and a lower end of the spring abuts against the foot.
  • the photosensor module is provided with a sensor wire adapted to be electrically connected to the controller.
  • FIG. 1 is a schematic view of a washing machine in accordance with one embodiment of the present invention.
  • FIG. 2 is a schematic view of a boom assembly and a photoelectric sensor module of a washing machine in accordance with an embodiment of the present invention
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features, either explicitly or implicitly.
  • the meaning of “multiple” is two or two Above, unless otherwise specifically defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like should be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or connected integrally; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • installation or connected to the external connection
  • connected or connected integrally; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may include first and second features, unless otherwise explicitly defined and defined. It is not in direct contact but through additional features between them.
  • the first feature "above”, “above” and “above” the second feature includes the first feature being directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature being directly above and above the second feature, or merely indicating that the first feature level is less than the second feature.
  • a washing machine includes: a casing 3; a tub, a boom assembly 4, a photosensor module 5, and a controller (not shown).
  • the tub body is provided in the casing 3. As shown in Fig. 1, the tub body includes a washing tub portion 1 and a dewatering tub 2 rotatably provided in the tub portion 1. This will be understood by those skilled in the art.
  • the boom assembly 4 is connected to the casing 3 and the tub body, respectively.
  • a photosensor module the photosensor module 5 being associated with at least one of the boom assemblies 4.
  • the photosensor module 5 senses the force change of the boom assembly, converts it into an electrical signal and transmits it to the controller, and the controller determines the weight and/or displacement of the washing machine barrel based on the electrical signal.
  • the photosensor module 5 includes a compression spring body 522 and a photoelectric displacement sensor, and the photoelectric displacement sensor includes a light source emitting end (not labeled) and a light receiving end 523; 4
  • the compression spring body 522 of the photosensor module 5 associated with the boom assembly 4 is deformed, and the reflected light is captured by the light receiving end 523 and converted into a corresponding electrical signal.
  • the photosensor module 5 is provided with a sensor wire 53, which is adapted to be electrically connected to the controller.
  • the controller is connected to the photoelectric sensor module 5 for receiving an electrical signal from the photoelectric sensor module 5 and determining the weight and/or displacement of the washing machine barrel according to the electrical signal, thereby controlling the washing machine to operate more smoothly.
  • the photosensor module 5 is disposed on the at least one boom assembly, and can monitor the weight change and/or displacement change of the barrel in real time, and transmit the measured electrical signal to the controller. Control the washing machine to run smoothly.
  • the at least one boom assembly 4 includes a boom 42 and is sleeved on A spring 44 on the boom 42 to which the compression spring body 522 of the photosensor module 5 is attached is attached to the boom 42 of the boom assembly 4.
  • each of the four boom assemblies 4 includes: a boom 42; a suspension foot 41, a spring sleeve 43, a spring 44, and a foot 45.
  • the suspension leg 41 is sleeved on the upper end of the boom 42 and connected to the casing 3.
  • the spring sleeve 43 is sleeved on the boom 42.
  • the spring 44 is disposed within the spring sleeve 43 and sleeved over the boom 42.
  • the foot 45 is connected to the sensor module 5.
  • the foot 45 is sleeved at the lower end of the boom 42 (i.e., as shown in Fig. 2).
  • the upper end of the spring 44 abuts against the spring sleeve 43 and the lower end of the spring 44 abuts against the foot.
  • the dewatering tub 2 is rotatably mounted in the washing tub portion 1, the washing tub portion 1 is suspended from the casing 3 by four boom assemblies 4, and the sensor module 5 is mounted in at least one of them.
  • the pulling force received by the boom assembly 4 can be directly or indirectly detected or sensed, and the sensed force change of the boom is converted into an electrical signal to the controller to control the washing machine. Smooth operation.
  • the photosensor module 5 can sense the change in tension experienced by the boom assembly.
  • the compression deformation of the spring 44 is caused, and the amount of compression deformation of the spring 44 is positively correlated with the tensile force of the boom assembly 4.
  • the photosensor module 5 of the present example senses the amount of deformation of the compression spring body 522 associated with the spring 44 of the boom assembly 4 by the displacement change of the reflected light, which is higher in reliability and lower in cost.
  • the photosensor module 5 is mounted on the bottom of the boom assembly 4, and includes a compression spring body 522 and a photoelectric displacement sensor.
  • the photoelectric displacement sensor includes a light source emitting end (not labeled) and a light receiving end 523. And sensor wire 53.
  • the controller can perform the following judgments according to the electrical signal output from the photosensor module 5:
  • the sensor module 5 is turned on when the drain valve is opened, and the force signal of the boom assembly 4 is detected. As the water in the washing tub is discharged, the weight of the washing tub is reduced, and the draining flow rate of the drain valve is not changed greatly. The force is close to linear decrease, and the value output by the sensor module 5 is also a downward linear curve; when the water in the washing tub is drained, the weight of the washing tub does not change, and the force of the boom assembly 4 does not change any more, the sensor Module 5 outputs a straight line that is close to horizontal. When the data value collected by the controller no longer changes or changes very little, that is, it is judged that the washing machine is drained, the dehydration action can be started immediately.
  • This method of judging is more accurate than the existing water level sensor judging method.
  • the water in the washing tub is immediately sensed, and dehydration can be started immediately, which can reduce the washing time.
  • dehydration imbalance and dehydration speed judgment When the washing starts to dehydrate, the weight of the laundry in the dewatering bucket and the barrel will be eccentric to some extent, which is reflected in the vibration curve of the boom assembly 4 being synchronized with the rotation speed of the dewatering barrel.
  • the output of the sensor is a certain frequency and amplitude. Vibration curve.
  • the whole dehydration process is divided into three stages: In the dehydration acceleration phase, the motor speed is accelerated from 0 to a certain speed. The curves at this stage are characterized by higher amplitude and lower frequency.
  • the amplitude of the curve can be used to characterize the vibration of the washing tub. If the vibration is too large, there is a danger of hitting the tank. It is necessary to stop the dewatering to rebalance the laundry in the tub.
  • the controller determines whether it is necessary to stop the dehydration and rebalance according to whether the amplitude measured by the sensor module 5 is greater than the threshold value. This method for judging the imbalance of the washing machine is more accurate than the mechanical collision type switch which is generally used nowadays, and the reliability and The level of modularity is higher. If the value output by the sensor module 5 is less than the threshold value, the controller determines that the washing machine does not hit the cabinet risk, the dehydration continues, and the dewatering bucket enters a steady state. At this time, the output value of the sensor module 5 appears as a curve in which the amplitude value is close, and the frequency is synchronized with the motor speed. The larger the amplitude of the curve, the greater the eccentricity of the garment in the bucket.
  • the controller can instantly sense the weight and the movement state of the washing tub, and instantly determine whether the working state of the washing machine is normal;

Abstract

一种洗衣机，包括：箱体（3）；桶体，所述桶体设在所述箱体（3）内；吊杆组件（4），所述吊杆组件（4）分别与所述箱体（3）和所述桶体相连；光电传感器模块（5），所述光电传感器模块（5）设在所述四个吊杆组件（4）的至少一个上，和控制器，所述控制器与所述光电传感器模块（5）相连。

Description

洗衣机
技术领域
本发明涉及家用电器制造技术领域， 特别是涉及一种洗衣机。 背景技术
波轮洗衣机盛水桶靠四根有阻尼特性的吊杆组件悬挂在箱体上。四根阻尼吊杆承受洗衣 机洗涤桶部装的重力， 并吸收洗涤桶在洗涤及脱水过程中产生的冲击能量， 保证洗衣机的 平稳运行。 洗涤桶的各种运动状态都会引起吊杆受力的变化。 现有技术对洗涤桶运动状态 进行监控一般采用的是机械式的撞桶开关， 来判断洗涤桶的位移是否过大， 以致洗衣机有 撞箱体风险。 但是这种判断只是对洗涤桶位移的开关量控制， 对洗涤桶的重量及运动状态 无法精确感知。 一般传感器都是感测洗涤桶位移来判断洗衣机脱水过程中是否振动过大。 而对于洗涤桶重量感测结合位移感测应用比较少， 实际上在整个洗衣过程中， 洗涤桶的重 量及位移在不同工序会有明显的变化， 用户往洗涤桶中添加衣物， 整个桶的重量会增加， 进水过程中桶的重量会增加， 排水过程中桶的重量会减小， 脱水过程由于脱水桶内衣物存 在偏差， 洗涤桶会振动。 因此， 如何根据洗涤桶的重量或洗涤桶的位移来控制洗衣机的运 行成为了亟需解决的问题。 发明内容
本发明旨在至少在一定程度上解决上述技术问题之一。
为此，本发明的一个目的在于提出一种洗衣机，可以更精准地判断或获知洗衣机桶体的 重量和 /或位移， 通过对桶体的运行状态更精确地实时监测以控制洗衣机更平稳运行。
根据本发明的洗衣机， 包括： 箱体； 桶体， 所述桶体设在所述箱体内；
吊杆组件， 所述吊杆组件分别与所述箱体和所述桶体相连； 光电传感器模块， 所述光电传 感器模块与至少一个所述吊杆组件相关联； 和控制器， 所述控制器与光电传感器模块连接; 其中， 所述光电传感器模块感测所述吊杆组件的受力变化， 将所述受力变化转化成电信号 并传送给所述控制器， 所述控制器根据所述电信号判断所述桶体的重量和 /或位移。
根据本发明的洗衣机，在所述吊杆组件关联所述传感器模块，可以更精确地实时监测桶 体的重量变化或者位移变化， 并将测得的电信号传输给控制器以控制洗衣机更平稳地运行。
另外， 根据本发明上述实施例的洗衣机还可以具有如下附加的技术特征：
根据本发明的一个实施例，所述光电传感器模块包括压縮弹簧体及光电位移传感器，所 述光电位移传感器包括光源发射端和光接收端； 当所述吊杆组件受力变化时， 与所述吊杆 组件关联的所述光电传感器模块的所述压縮弹簧体形变， 由所述光接收端捕获反射光并转 化成对应的电信号。
根据本发明的一个实施例， 所述光电传感器模块设在所述至少一个吊杆组件上。
根据本发明的一个实施例， 所述至少一个吊杆组件包括吊杆、套设在吊杆上的弹簧； 所 述光电传感器模块的压縮弹簧体连接在所述吊杆组件的吊杆上。
根据本发明的一个实施例，所述吊杆组件还包括悬挂脚，所述悬挂脚套设在所述吊杆的 上端且与所述箱体相连； 弹簧套， 所述弹簧套套设在所述吊杆上； 所述弹簧设在所述弹簧 套内并套设在所述吊杆上， 所述弹簧的上端抵靠所述弹簧套； 和与所述光电传感器模块相 连的底脚， 所述底脚套设在所述吊杆的下端， 所述弹簧的下端与所述底脚抵靠。
根据本发明的一个实施例， 所述光电传感器模块设有传感器导线， 适于与所述控制器电 连接。
本发明的附加方面和优点将在下面的描述中部分给出， 部分将从下面的描述中变得明 显， 或通过本发明的实践了解到。 附图说明
本发明的上述和 /或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和 容易理解， 其中：
图 1是根据本发明一个实施例的洗衣机的示意图；
图 2是根据本发明一个实施例的洗衣机的吊杆组件和光电传感器模块的一种示意图； 具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或 类似的标号表示相同或类似的元件或具有相同或类似功能的元件。 下面通过参考附图描述 的实施例是示例性的， 旨在用于解释本发明， 而不能理解为对本发明的限制。
在本发明的描述中， 需要理解的是， 术语 "中心"、 "纵向"、 "横向"、 "长度"、 "宽度"、
"厚度"、 "上"、 "下"、 "前"、 "后"、 "左"、 "右"、 "竖直"、 "水平"、 "顶"、 "底 " "内"、 "外"、 "顺时针"、 "逆时针"等指示的方位或位置关系为基于附图所示的方位或位置关系， 仅是 为了便于描述本发明和简化描述， 而不是指示或暗示所指的装置或元件必须具有特定的方 位、 以特定的方位构造和操作， 因此不能理解为对本发明的限制。
此外， 术语 "第一"、 "第二"仅用于描述目的， 而不能理解为指示或暗示相对重要性或 者隐含指明所指示的技术特征的数量。 由此， 限定有 "第一"、 "第二" 的特征可以明示或 者隐含地包括一个或者更多个该特征。 在本发明的描述中， "多个" 的含义是两个或两个以 上， 除非另有明确具体的限定。
在本发明中， 除非另有明确的规定和限定， 术语 "安装"、 "相连"、 "连接"、 "固定"等 术语应做广义理解， 例如， 可以是固定连接， 也可以是可拆卸连接， 或一体地连接； 可以 是机械连接， 也可以是电连接； 可以是直接相连， 也可以通过中间媒介间接相连， 可以是 两个元件内部的连通。 对于本领域的普通技术人员而言， 可以根据具体情况理解上述术语 在本发明中的具体含义。
在本发明中， 除非另有明确的规定和限定， 第一特征在第二特征之 "上" 或之 "下" 可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过 它们之间的另外的特征接触。 而且， 第一特征在第二特征 "之上"、 "上方 "和 "上面" 包括第一特征在第二特征正上方和斜上方， 或仅仅表示第一特征水平高度高于第二特 征。 第一特征在第二特征 "之下" 、 "下方"和 "下面"包括第一特征在第二特征正上 方和斜上方， 或仅仅表示第一特征水平高度小于第二特征。
下面参考附图来详细描述根据本发明实施例的洗衣机。
如图 1至图 3所示， 根据本发明的洗衣机， 包括： 箱体 3 ; 桶体， 吊杆组件 4， 光 电传感器模块 5， 和控制器 （未示出） 。
具体地说， 所述桶体设在箱体 3内。 如图 1所示， 桶体包括洗涤桶部装 1和可转动 地设在洗涤桶部装 1之内的脱水桶 2。 这对于本领域技术人员来说， 是可以理解的。
吊杆组件 4分别与箱体 3和所述桶体相连。
光电传感器模块， 所述光电传感器模块 5与至少一个所述吊杆组件 4相关联。其中， 光 电传感器模块 5 感测吊杆组件的受力变化， 将其转化成电信号并传送给控制器， 所述控制 器根据电信号判断洗衣机桶体的重量和 /或位移。
具体地， 如图 3， 2、 所述光电传感器模块 5包括压縮弹簧体 522及光电位移传感器， 所述光电位移传感器包括光源发射端（未标示）和光接收端 523; 当所述吊杆组件 4受力变 化时， 与吊杆组件 4关联的光电传感器模块 5的压縮弹簧体 522形变， 由所述光接收端 523 捕获反射光并转化成对应的电信号。 其中， 所述光电传感器模块 5设有传感器导线 53， 适 于与控制器电连接。
所述控制器与光电传感器模块 5相连接，用于接收光电传感器模块 5发出的电信号 并根据该电信号判断洗衣机桶体的重量和 /或位移， 以此控制洗衣机更平稳运行。
根据本发明一个实施例， 所述光电传感器模块 5设在所述至少一个吊杆组件上， 可以 实时监测桶体的重量变化和 /或位移变化， 并将测得的电信号传送给控制器以控制洗衣 机平稳运行。
具体而言， 在本发明的一个实施例中， 所述至少一个吊杆组件 4包括吊杆 42、 套设在 吊杆 42上的弹簧 44，所述光电传感器模块 5的压縮弹簧体 522连接在所述吊杆组件 4的吊 杆 42上。
如图 1和图 2所示， 四个吊杆组件 4中的每一个均包括： 吊杆 42 ; 悬挂脚 41， 弹 簧套 43， 弹簧 44， 底脚 45。
悬挂脚 41套设在吊杆 42的上端且与箱体 3相连。
弹簧套 43套设在吊杆 42上。
弹簧 44设在弹簧套 43内且套设在吊杆 42上。
底脚 45与传感器模块 5相连。 底脚 45套设在吊杆 42的下端 （即如图 2中所示的 下方） 。
弹簧 44的上端抵靠弹簧套 43且弹簧 44的下端与底脚抵靠。
换句话说， 如图 1， 脱水桶 2可转动地装在洗涤桶部装 1里， 洗涤桶部装 1通过四个 吊杆组件 4悬挂在箱体 3上， 传感器模块 5安装在其中至少一个吊杆组件 4上， 可以直接 或间接检测或感测该吊杆组件 4受到的所述的拉力， 并将感测到的吊杆受力变化转变成为 电信号传送给所述控制器以控制洗衣机平稳运行。
如图 2所示，光电传感器模块 5可以感测所在吊杆组件所受的拉力变化。吊杆组件受洗 涤桶部装 1的拉力， 会引起弹簧 44的压縮变形， 弹簧 44的压縮变形量与吊杆组件 4的所 受的拉力为正相关关系。 本实例的光电传感器模块 5采用所述反射光的位移变化感测与吊 杆组件 4弹簧 44相关联的压縮弹簧体 522的变形量， 相比而言， 可靠性更高， 成本更低。
在本发明的一个实施例中，光电传感器模块 5安装在吊杆组件 4底部，包括压縮弹簧体 522及光电位移传感器， 所述光电位移传感器包括光源发射端 （未标示）、 光接收端 523和 传感器导线 53组成。 当所述吊杆组件受力变化时， 与吊杆组件关联的光电传感器模块的压 縮弹簧体 522形变， 由所述光接收端 523捕获由所述压縮弹簧体 522的形变所得的反射光， 并转化成对应的电信号， 通过传感器导线 53传送给控制器， 以使控制器控制洗衣机平稳地 运行。
在上述实施例中， 控制器可以根据光电传感器模块 5输出的电信号进行以下几种判断：
1.洗涤完成之后，排水阀打开时开启传感器模块 5开始检测吊杆组件 4受力信号， 随着 洗涤桶内水排出， 洗涤桶重量减轻， 由于排水阀排水流速变化不大， 吊杆组件 4受力接近 于线性减小， 传感器模块 5输出的值也为向下的线性曲线； 当洗涤桶内水排完之后， 洗涤 桶重量不再变化， 吊杆组件 4受力也不再变化， 传感器模块 5输出为接近水平的直线。 当 控制器采集到的数据值不再发生变化或变化很小时， 即判断洗衣机排水完成， 即可立即开 始进行脱水动作。 用这种判断方法比现有的水位传感器判断方法更准确， 洗涤桶内水排完 立刻就能感知到， 即刻就能开始脱水， 可以减少洗涤时间。 2.脱水不平衡及脱水转速判断。 在洗衣开始脱水时， 由于脱水桶及桶内衣物的重量会有 一定程度的偏心， 反映在吊杆组件 4 的受力为和脱水桶转速同步的振动曲线， 传感器输出 的为一定频率和振幅的振动曲线。 整个脱水过程分为 3个阶段： 脱水加速阶段， 此电机转 速从 0 开始加速到一定转速。 此阶段的曲线特点为振幅较高， 频率较低。 曲线的振幅可以 表征洗涤桶的振动大小， 振动太大会有撞击箱体的危险， 需要停止脱水对桶内的衣物进行 再平衡。 控制器根据传感器模块 5测出的幅值是否大于阙值判断是否需要停止脱水进行再 平衡， 这种判断洗衣机不平衡的方法比现在普遍采用的机械式撞桶开关相比更准确， 可靠 性及模块化水平更高。 如果传感器模块 5输出的值小于阙值， 控制器判断洗衣机没有撞箱 体风险， 脱水继续进行， 脱水桶进入稳态。 此时传感器模块 5输出值呈现为振幅值接近， 频率和电机转速同步的曲线。 曲线的幅值越大， 说明桶内衣物的偏心越大。
3.衣物称重及含水量测算。吊杆组件 4所受拉力如图 4所示。洗衣机未加衣服测试基准 值 al,加衣服之后测试进水完成之后测试值 a2， 排水完成之后测试值 a4， 脱水完成之后测 试值 a3。 采用差值计算， a2-al 与添加衣物重量成正相关， 控制器可以根据此值判断衣物 重量。 （a3-a2 ) /a2 反映衣物脱水之后的含水率，控制器可以根据此值判断衣物含水率是否 足够并判定洗衣机是否停止脱水， 达到脱干即停效果。
根据本发明的洗衣机具有以下几个优点：
1.通过本发明提供的方法，控制器可以即时感测洗涤桶的重量及运动状态， 即时判断洗 衣机工作状态是否正常；
2.可以直接感知排水完成， 立即开始排水， 节省整个洗涤过程的时间；
3.可以更精准感知脱水不平衡，并且可以感测脱水桶在脱水状态的转速及振动大小，控 制器可根据感测的数值进行调整；
4.可以感测衣物的重量， 实现不同衣量进不同水量；
5.可以感知衣物脱水含水率，实现衣物含水率达到要求即停止脱水， 比现有的固定时间 脱水更智能， 更可以保证脱水完成之后衣物含水率达到用户要求。
在本说明书的描述中，参考术语"一个实施例"、"一些实施例"、 "示例"、 "具体示例"、 或 "一些示例"等的描述意指结合该实施例或示例描述的具体特征、 结构、 材料或者特点 包含于本发明的至少一个实施例或示例中。 在本说明书中， 对上述术语的示意性表述不一 定指的是相同的实施例或示例。 而且， 描述的具体特征、 结构、 材料或者特点可以在任何 的一个或多个实施例或示例中以合适的方式结合。
尽管上面已经示出和描述了本发明的实施例， 可以理解的是， 上述实施例是示例性的， 不能理解为对本发明的限制， 本领域的普通技术人员在不脱离本发明的原理和宗旨的情况 下在本发明的范围内可以对上述实施例进行变化、 修改、 替换和变型。

Claims

权利要求书
1、 一种洗衣机， 其特征在于， 包括：
箱体；
桶体， 所述桶体设在所述箱体内；
吊杆组件， 所述吊杆组件分别与所述箱体和所述桶体相连；
光电传感器模块， 所述光电传感器模块与至少一个所述吊杆组件相关联； 和 控制器， 所述控制器与光电传感器模块连接；
其中， 所述光电传感器模块感测所述吊杆组件的受力变化， 并将所述受力变化转化 成电信号并传送给所述控制器，所述控制器根据所述电信号判断所述桶体的重量和位移 中的至少一个。
2、 根据权利要求 1所述的洗衣机， 其特征在于， 所述光电传感器模块包括压縮弹 簧体及光电位移传感器， 所述光电位移传感器包括光源发射端和光接收端； 当所述吊杆 组件受力变化时， 与所述吊杆组件关联的光电传感器模块的压縮弹簧体形变， 由所述光 接收端捕获反射光并转化成对应的电信号。
3、 根据权利要求 1或 2所述的洗衣机， 其特征在于， 所述光电传感器模块设在所 述至少一个吊杆组件上。
4、 根据权利要求 1-3中任一项所述的洗衣机， 其特征在于， 所述至少一个吊杆组 件包括吊杆、套设在吊杆上的弹簧； 所述光电传感器模块的压縮弹簧体连接在所述吊杆 组件的吊杆上。
5、 根据权利要求 1-4中任一项所述的洗衣机， 其特征在于， 所述吊杆组件还包括： 悬挂脚， 所述悬挂脚套设在所述吊杆的上端且与所述箱体相连；
弹簧套， 所述弹簧套套设在所述吊杆上；
所述弹簧设在所述弹簧套内并套设在所述吊杆上， 所述弹簧的上端抵靠所述弹簧 套； 和
与所述光电传感器模块相连的底脚， 所述底脚套设在所述吊杆的下端， 所述弹簧的 下端与所述底脚抵靠。
6、 根据权利要求 1-5中任一项所述的洗衣机， 其特征在于， 所述光电传感器模块 设有传感器导线， 适于与所述控制器电连接。
PCT/CN2013/089219 2013-09-23 2013-12-12 洗衣机 WO2015039390A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1298977A (zh) * 1999-12-03 2001-06-13 三洋电机株式会社 洗衣机
CN1367288A (zh) * 2002-02-09 2002-09-04 伍华本 利用重量传感器检测确定洗衣机内布量、水量的方法
CN102061591A (zh) * 2009-11-16 2011-05-18 三星电子株式会社 洗衣机和该洗衣机的控制方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1298977A (zh) * 1999-12-03 2001-06-13 三洋电机株式会社 洗衣机
CN1367288A (zh) * 2002-02-09 2002-09-04 伍华本 利用重量传感器检测确定洗衣机内布量、水量的方法
CN102061591A (zh) * 2009-11-16 2011-05-18 三星电子株式会社 洗衣机和该洗衣机的控制方法

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