WO2021088733A1

WO2021088733A1 - Washing machine

Info

Publication number: WO2021088733A1
Application number: PCT/CN2020/125305
Authority: WO
Inventors: 川口智也; 永井孝之
Original assignee: 青岛海尔洗衣机有限公司; Aqua株式会社; 海尔智家股份有限公司
Priority date: 2019-11-06
Filing date: 2020-10-30
Publication date: 2021-05-14
Also published as: JP2021074105A; CN114667375B; JP7473907B2; CN114667375A

Abstract

A washing machine (1), comprising: a dehydration tub (2) disposed in an outer tub (3), a pulsator (4) is being provided at the bottom; three baffles (8) disposed on the inner peripheral surface of the dehydration tub (2) at equal intervals along a circumferential direction, an opening being provided near the bottom and a circulating water port (80) being formed at the upper end; a water receiving ring unit (5) formed by overlapping, in a radial direction, three annular water guide grooves (5a, 5b, 5c) connected to the upper ends of the baffles (8); a nozzle unit (30) fixed at the upper end of the dehydration tub (2), and capable of independently injecting adjustment water into the water guide grooves (5a, 5b, 5c); an acceleration sensor (56) for detecting the vibration of the outer tub (3); a proximity switch (55) for sending a pulse signal according to the rotation of the dehydration tub (2); an eccentricity detection unit (65, 66) for detecting the amount of eccentricity and the eccentric position in the dehydration tub (2); and a control portion (60) for controlling, when the amount of eccentricity reaches a predetermined amount-of-eccentricity threshold during a dehydration process, the nozzle unit (30) to inject water into the baffles (8) corresponding to the eccentric position, the control unit (60) performing different control on the nozzle unit (30) according to the situation where the eccentric position is located at the upper part of the dehydration tub (2) or the central part in a height direction and the lower part.

Description

洗衣机washing machine

技术领域Technical field

本发明涉及一种洗衣机，其直接在继续脱水桶的旋转的状态下消除脱水桶的不平衡，能抑制因脱水时洗涤物的偏心而产生的振动、噪音。The present invention relates to a washing machine, which directly eliminates the unbalance of the dehydration barrel while continuing the rotation of the dehydration barrel, and can suppress vibration and noise caused by the eccentricity of laundry during dehydration.

背景技术Background technique

设置于普通家庭或自助洗衣房等的普通的洗衣机在脱水时洗涤物会在脱水桶内偏倚而产生振动、噪音。此外，在此时的洗涤物的偏倚大的情况下，旋转时的脱水桶的振幅会变大，形成大的振动，因此无法开始脱水运转。Ordinary washing machines installed in ordinary homes or self-service laundry rooms will skew the laundry in the dehydration tub during dehydration, causing vibration and noise. In addition, in the case where the deviation of the laundry at this time is large, the amplitude of the spin-drying tub at the time of rotation becomes large, resulting in large vibrations, and therefore the spin-drying operation cannot be started.

因此，专利文献1中公开了如下的技术：脱水时检测洗涤桶内的衣物的不平衡量和不平衡位置，当存在不平衡时，向均匀地设置在脱水桶的周向上的多个折流板进行注水，由此主动消除脱水桶的不平衡状态。Therefore, Patent Document 1 discloses the following technology: the unbalanced amount and unbalanced position of the laundry in the washing tub are detected during dehydration, and when there is an imbalance, a plurality of baffles that are evenly arranged in the circumferential direction of the dehydration tub Inject water, thereby actively eliminating the unbalanced state of the dehydration barrel.

专利文献1的洗衣机中，经由固定于脱水桶的内周面的上端部的接水环单元向折流板进行注水。接水环单元具有在径向上三层重叠的三个导水槽，在三个导水槽分别形成有使调整水流向任一折流板的通水路径。In the washing machine of Patent Document 1, water is poured into the baffle plate via the water receiving ring unit fixed to the upper end of the inner peripheral surface of the dehydration tub. The water receiving ring unit has three water guide grooves overlapping in three layers in the radial direction, and a water passage through which the adjustment water flows to any baffle is formed in each of the three water guide grooves.

脱水桶配置于外桶内，在外桶的上端部固定有能独立地向各导水槽注入调整水的喷嘴单元。喷嘴单元具有配置于三个导水槽的上方的三根注水喷嘴。各注水喷嘴在洗衣机停止的状态下被调整位置以便配置于能向各导水槽注入调整水的位置。The dewatering barrel is arranged in the outer barrel, and a nozzle unit capable of independently injecting adjustment water into each water guiding tank is fixed at the upper end of the outer barrel. The nozzle unit has three water injection nozzles arranged above the three water guide grooves. The position of each water injection nozzle is adjusted in a state where the washing machine is stopped so as to be arranged at a position where adjustment water can be injected into each water guiding tank.

脱水桶内不存在偏心的情况下，脱水桶和外桶同步旋转，因此会从各注水喷嘴向各导水槽恰当地注入调整水。与此相对，脱水桶内存在偏心的情况下，存在如下问题：脱水桶和外桶变得不同步旋转，因此不会从各注水喷嘴恰当地向各导水槽注入调整水，来自各注水喷嘴的调整水被注水至错误的导水槽。该情况下，无法恰当地进行消除脱水桶的不平衡状态的控制。When there is no eccentricity in the dewatering bucket, the dewatering bucket and the outer bucket rotate synchronously, so the adjustment water will be properly injected from each water injection nozzle into each water guide groove. On the other hand, if there is an eccentricity in the dewatering bucket, there is a problem that the dewatering bucket and the outer bucket become asynchronously rotating, so the adjustment water from each water injection nozzle is not properly injected into each water channel, and the water from each water injection nozzle The adjustment water is poured into the wrong water channel. In this case, the control to eliminate the unbalanced state of the dehydration tank cannot be performed appropriately.

特别是，在脱水桶内的上部或高度方向中央部存在偏心的情况、偏心位置处于以与脱水桶的上部和下部相对的方式被定位的对置偏心状态(上下方向上两个偏心位置配置于相反侧，且水平方向上两个偏心位置在相反方向上错开的状态)的情况下，容易发生以下问题：由于脱水桶的上端部处的加振力，外桶的上端部的振动变大，来自各注水喷嘴的调整水被注水至错误的导水槽。此外，立式洗衣机中，由于外桶的强度较小，因此当脱水桶以较小的转数旋转时，外桶会共振，外桶的上端部的振动会变大。In particular, when there is an eccentricity in the upper part of the dehydration barrel or the middle part in the height direction, the eccentric position is in an opposing eccentric state positioned opposite to the upper and lower parts of the dehydration barrel (the two eccentric positions in the vertical direction are arranged at In the case of the opposite side, and the two eccentric positions in the horizontal direction are staggered in the opposite direction), the following problem is likely to occur: due to the vibration force at the upper end of the dehydration barrel, the vibration of the upper end of the outer barrel becomes larger, The adjusted water from each water injection nozzle is injected to the wrong water channel. In addition, in the vertical washing machine, since the strength of the outer tub is small, when the dehydration tub is rotated at a small number of revolutions, the outer tub will resonate, and the vibration of the upper end of the outer tub will become larger.

现有技术文献Prior art literature

专利文献Patent literature

专利文献1：日本特开2017－56025号公报Patent Document 1: Japanese Patent Application Publication No. 2017-56025

发明内容Summary of the invention

发明所要解决的问题The problem to be solved by the invention

因此，本发明能提供一种洗衣机，其即使脱水过程时洗涤桶内存在洗涤物的偏置，也能更恰当地进行消除脱水桶的不平衡状态的控制。Therefore, the present invention can provide a washing machine, which can more appropriately perform the control to eliminate the unbalanced state of the dehydration tub even if there is an offset of the washing in the washing tub during the dehydration process.

用于解决问题的方案Solution to the problem

本发明的洗衣机的特征在于，具备：脱水桶，配置于外桶内，底部配置有波轮；三个以上的通水管部，沿周向等间隔地配置于所述脱水桶的内周面，并且在所述底部附近开口且在上端部形成有循环水口；接水环单元，固定于所述脱水桶的上端部，由分别与所述通水管部的上端部连接的三个以上的环状的导水槽彼此在径向上重叠而成；喷嘴单元，固定于所述外桶的上端部，能独立地向各导水槽注入调整水；加速度检测部，检测所述外桶的振动；位置检测装置，根据所述脱水桶的旋转而发送脉冲信号；偏心检测部，检测所述脱水桶内的偏心量和偏心位置；以及控制部，在脱水过程中，当偏心量达到规定的偏心量阈值时，控制所述喷嘴单元向与偏心位置对应的所述通水管部注水，所述控制部对所述喷嘴单元进行根据由所述偏心检测部检测到的所述偏心位置位于所述脱水桶的上部或高度方向中央部的情况和位于所述脱水桶的下部的情况而不同的控制。The washing machine of the present invention is characterized by comprising: a dewatering tub arranged in an outer tub with a pulsator arranged at the bottom; three or more water-passing pipe parts arranged on the inner peripheral surface of the dewatering tub at equal intervals in the circumferential direction, And an opening near the bottom and a circulating water port is formed at the upper end; the water receiving ring unit is fixed to the upper end of the dewatering bucket, and is composed of three or more ring-shaped connections connected to the upper end of the water passing pipe. The water guide grooves overlap each other in the radial direction; the nozzle unit is fixed to the upper end of the outer tub and can independently inject adjusted water into the water guide grooves; the acceleration detection unit detects the vibration of the outer tub; the position detection device , Sending a pulse signal according to the rotation of the dehydration barrel; an eccentricity detection unit that detects the amount of eccentricity and the position of the eccentricity in the dehydration barrel; and a control unit, when the amount of eccentricity reaches a predetermined threshold of eccentricity during the dehydration process, The nozzle unit is controlled to inject water into the water-passing pipe portion corresponding to the eccentric position, and the control portion performs the operation on the nozzle unit to be located in the upper part of the dehydration barrel according to the eccentric position detected by the eccentricity detecting portion. The control is different in the case of the center part in the height direction and the case in the lower part of the dehydration tub.

需要说明的是，本发明中，对喷嘴单元进行根据偏心位置位于脱水桶的上部或高度方向中央部的情况和位于脱水桶的下部的情况而不同的控制是指，例如，由喷嘴单元进行注水控制时所使用的各种阈值中的至少一种阈值因偏心位置位于脱水桶的上部或高度方向中央部的情况和位于脱水桶的下部的情况而异。It should be noted that, in the present invention, the different control of the nozzle unit depending on the situation where the eccentric position is located in the upper part of the dewatering tank or the middle part of the height direction and the situation in the lower part of the dewatering tank means, for example, water injection by the nozzle unit At least one of the various thresholds used in the control differs depending on the case where the eccentric position is located at the upper part of the dehydration tank or the center part in the height direction and the case where the eccentric position is located at the lower part of the dehydration tank.

本发明的洗衣机中，优选的是，在脱水过程中开始控制所述喷嘴单元向所述通水管部注水之后，在由所述偏心检测部检测到的所述偏心量变为规定的加速阈值以下的情况下，所述控制部控制所述喷嘴单元停止向所述通水管部注水，所述偏心位置位于所述脱水桶的上部或高度方向中央部的情况下的所述加速阈值比所述偏心位置位于所述脱水桶的下部的情况下的所述加速阈值小。In the washing machine of the present invention, it is preferable that after starting to control the nozzle unit to inject water into the water-passing pipe portion during the spin-drying process, the eccentricity amount detected by the eccentricity detecting portion becomes less than a predetermined acceleration threshold. In a case, the control unit controls the nozzle unit to stop filling water into the water-passing pipe portion, and the acceleration threshold value when the eccentric position is located at the upper part of the dehydration barrel or the center part in the height direction is greater than the eccentric position The acceleration threshold value in the case of being located in the lower part of the dehydration tub is small.

本发明的洗衣机中，优选的是，所述偏心位置位于所述脱水桶的上部或高度方向中央部的情况下的所述偏心量阈值比所述偏心位置位于所述脱水桶的下部的情况下的所述偏心量阈值小。In the washing machine of the present invention, it is preferable that the eccentricity threshold value in the case where the eccentric position is located at the upper part of the dehydration tub or the center in the height direction is higher than when the eccentric position is located at the lower part of the dehydration tub The threshold of the eccentricity is small.

本发明的洗衣机中，优选的是，所述控制部在脱水过程中仅在所述脱水桶的转数为规定的可注水上限转数以下的情况下控制所述喷嘴单元向与偏心位置对应的所述通水管部注水，所述偏心位置位于所述脱水桶的上部或高度方向中央部的情况下的所述可注水上限转数比所述偏心位置位于所述脱水桶的下部的情况下的所述可注水上限转数小。In the washing machine of the present invention, it is preferable that the control unit controls the nozzle unit to the position corresponding to the eccentric position only when the number of rotations of the dehydration tub is less than a predetermined upper limit number of rotations that can be filled with water during the dehydration process. The water-passing pipe portion is filled with water, and the maximum number of revolutions that can be poured when the eccentric position is located at the upper part of the dehydration barrel or the center in the height direction is higher than that when the eccentric position is located at the lower part of the dehydration barrel The maximum number of revolutions that can be filled with water is small.

本发明的洗衣机中，在向所述通水管部可注水的注水限制量根据所述脱水桶的转数而发生变化的情况下，所述控制部在脱水过程中控制所述喷嘴单元，使得向所述通水管部的注水量不超过与所述脱水桶的转数相应的所述注水限制量。In the washing machine of the present invention, in the case where the limit amount of water that can be poured into the water passing pipe portion changes according to the number of rotations of the dehydration tub, the control portion controls the nozzle unit during the dehydration process so that the The water injection amount of the water-passing pipe part does not exceed the water injection restriction amount corresponding to the number of rotations of the dehydration barrel.

发明效果Invention effect

根据本发明，分别在脱水桶内的偏心位置位于脱水桶的上部或高度方向中央部的情况和偏心位置位于脱水桶的下部的情况下，可以考虑喷嘴单元的喷嘴与导水槽的位置关系容易发生变化的运转状态，但通过根据脱水桶内的偏心位置而进行彼此不同的控制，能抑制喷嘴与导水槽的位置关系发生变化。由此，能防止来自喷嘴单元的调整水被注水至错误的导水槽，恰当地进行消除脱水桶2的不平衡状态的控制。According to the present invention, when the eccentric position in the dehydration barrel is located at the upper part of the dehydration barrel or in the center of the height direction and the eccentric position is located at the lower part of the dehydration barrel, it can be considered that the positional relationship between the nozzle of the nozzle unit and the water channel is likely to occur Changing operating conditions, but by performing different controls according to the eccentric position in the dehydration tub, it is possible to suppress changes in the positional relationship between the nozzle and the water guide. As a result, it is possible to prevent the adjustment water from the nozzle unit from being poured into the wrong water channel, and to appropriately perform the control to eliminate the unbalanced state of the dehydration tub 2.

根据本发明，在脱水过程的脱水桶的转数小于共振转数的状态下，在偏心位置位于脱水桶的下部的情况下，当注水量过多时，在脱水桶的转数上升而变得大于共振转数之后，可能会成为对置偏心状态而振动变大，但由于加速阈值被设定为较大的值，因此在开始向通水管部注水之后，在注水量还没变得过多的时候停止向通水管部注水以迅速结束注水。由此，能抑制喷嘴与导水槽的位置关系发生变化，防止来自喷嘴单元的调整水被注水至错误的导水槽。According to the present invention, in a state where the rotation speed of the dehydration barrel during the dehydration process is less than the resonance rotation number, and the eccentric position is located at the lower part of the dehydration barrel, when the amount of water injection is too much, the rotation number of the dehydration barrel rises and becomes larger than After the resonance revolution, the vibration may become eccentrically opposed, but because the acceleration threshold is set to a large value, after starting to fill the water pipe, the amount of water has not become too much. Stop filling the water pipe at the time to quickly end the filling. As a result, it is possible to suppress changes in the positional relationship between the nozzle and the water guide, and prevent the adjustment water from the nozzle unit from being poured into the wrong water guide.

此外，虽然在脱水过程的脱水桶的转数为共振转数以上的状态下，在偏心位置位于脱水桶的上部或高度方向中央部的情况下，脱水桶的上端部的振动大，喷嘴与导水槽的位置关系容易发生变化，但由于加速阈值被设定为较小的值，因此在开始向通水管部注水之后，会持续向通水管部注水直到脱水桶的振动变得较小。由此，能抑制喷嘴与导水槽的位置关系发生变化，防止来自喷嘴单元的调整水被注水至错误的导水槽。In addition, although the rotation speed of the dehydration barrel in the dehydration process is more than the resonance rotation number, if the eccentric position is located at the upper part of the dehydration barrel or the center of the height direction, the vibration of the upper end of the dehydration barrel is large, and the nozzle and guide The positional relationship of the water tank is likely to change, but because the acceleration threshold is set to a small value, after starting to fill the water pipe, the water pipe will continue to be filled until the vibration of the dehydration bucket becomes smaller. As a result, it is possible to suppress changes in the positional relationship between the nozzle and the water guide, and prevent the adjustment water from the nozzle unit from being poured into the wrong water guide.

根据本发明，虽然在偏心位置位于脱水桶的上部或高度方向中央部的情况下喷嘴单元的喷嘴与导水槽的位置关系容易发生变化，但由于偏心量阈值被设定为较小，因此能在喷嘴与导水槽的位置关系不易发生变化的早期阶段开始注水处理。由此，能抑制喷嘴与导水槽的位置关系发生变化，防止来自喷嘴单元的调整水被注水至错误的导水槽。According to the present invention, although the positional relationship between the nozzle of the nozzle unit and the water channel is likely to change when the eccentric position is located at the upper part of the dehydration barrel or the middle part in the height direction, the eccentric amount threshold is set to be small, so it can be The water injection treatment is started at the early stage when the positional relationship between the nozzle and the water guide groove is not easy to change. As a result, it is possible to suppress changes in the positional relationship between the nozzle and the water guide, and prevent the adjustment water from the nozzle unit from being poured into the wrong water guide.

根据本发明，虽然在偏心位置位于脱水桶的上部或高度方向中央部的情况下，在脱水桶的转数变高而接近外桶的共振转数时，外桶会共振而大幅振动，由此喷嘴与导水槽的位置关系容易发生变化，但由于可注水上限转数被设定为较小，因此会在脱水桶的转数尚未接近外桶的共振转数的低转数阶段停止向通水管部注水。由此，能抑制喷嘴与导水槽的位置关系发生变化，防止来自喷嘴单元的调整水被注水至错误的导水槽。According to the present invention, even if the eccentric position is located at the upper part of the dehydration tub or in the middle of the height direction, when the rotation speed of the dehydration tub becomes higher and approaches the resonance rotation speed of the outer tub, the outer tub will resonate and vibrate greatly, thereby The positional relationship between the nozzle and the water guide tank is prone to change, but because the upper limit of the number of revolutions that can be injected is set to be small, the rotation to the water pipe will be stopped at a low number of revolutions when the number of revolutions of the dehydration barrel is not close to the resonance number of the outer barrel. Ministry of water injection. As a result, it is possible to suppress changes in the positional relationship between the nozzle and the water guide, and prevent the adjustment water from the nozzle unit from being poured into the wrong water guide.

根据本发明，由于在脱水过程中控制喷嘴单元使得向通水管部的注水量不超过与脱水桶的转数相应的注水限制量，因此能防止从喷嘴单元超过注水限制量地注入调整水而浪费调整水。According to the present invention, since the nozzle unit is controlled during the dehydration process so that the amount of water injected into the water-passing pipe does not exceed the water injection restriction amount corresponding to the number of rotations of the dehydration barrel, it is possible to prevent the nozzle unit from injecting adjusted water beyond the water injection restriction amount to waste. Adjust the water.

附图说明Description of the drawings

图1是表示本发明的实施方式的洗衣机1的外观的立体图。Fig. 1 is a perspective view showing the appearance of a washing machine 1 according to an embodiment of the present invention.

图2是表示图1的洗衣机1的结构的示意图。Fig. 2 is a schematic diagram showing the structure of the washing machine 1 of Fig. 1.

图3是从上方观察图1的洗衣机1的局部的俯视图。Fig. 3 is a plan view of a part of the washing machine 1 of Fig. 1 viewed from above.

图4是图1的洗衣机1所具有的脱水桶2的横剖图。Fig. 4 is a cross-sectional view of the dewatering tub 2 included in the washing machine 1 of Fig. 1.

图5是图1的洗衣机1的局部纵剖图。Fig. 5 is a partial longitudinal sectional view of the washing machine 1 of Fig. 1.

图6中，图6的(a)是图3的a1－a1线处的剖视图，图6的(b)是图3的a2－a2线处的剖视图，图6的(c)是图3的a3－a3线处的剖视图。In Figure 6, Figure 6(a) is a cross-sectional view at the line a1-a1 in Figure 3, Figure 6(b) is a cross-sectional view at the line a2-a2 in Figure 3, and Figure 6(c) is a cross-sectional view at the line a2-a2 in Figure 3 Sectional view at the line a3-a3.

图7中，图7的(a)是从内周侧观察形成于脱水桶2的内周面2a1的折流板8的图，图7的(b)是图7的(a)的a1－a1线处的剖视图。In Fig. 7, Fig. 7(a) is a view of the baffle 8 formed on the inner circumferential surface 2a1 of the dewatering barrel 2 as viewed from the inner circumferential side, and Fig. 7(b) is a1- in Fig. 7(a) Sectional view at line a1.

图8中，图8的(a)是表示作用于水面的重力和离心力的合力的图，图8的(b)表示使脱水桶2的转数发生各种变化时的水面角度的变化。In FIG. 8, (a) of FIG. 8 is a graph showing the resultant force of gravity and centrifugal force acting on the water surface, and (b) of FIG. 8 shows a change in the angle of the water surface when the number of rotations of the dewatering tub 2 is changed variously.

图9是图1的洗衣机1的电气***框图。Fig. 9 is a block diagram of the electrical system of the washing machine 1 of Fig. 1.

图10是对偏心量阈值(ma)进行说明的图。Fig. 10 is a diagram explaining the eccentricity threshold value (ma).

图11是对可注水上限转数(Na)进行说明的图。Fig. 11 is a diagram for explaining the upper limit revolutions (Na) that can be poured.

图12是对加速阈值(mc)进行说明的图。FIG. 12 is a diagram explaining the acceleration threshold (mc).

图13是用于说明图1的洗衣机1的脱水过程中的控制流程的图。Fig. 13 is a diagram for explaining a control flow in the spin-drying process of the washing machine 1 of Fig. 1.

图14是表示开口的供水阀31a、31b、31c的参数表。Fig. 14 is a parameter table showing the open water supply valves 31a, 31b, and 31c.

图15是表示脱水桶2内的偏心位置的示意图。FIG. 15 is a schematic diagram showing the eccentric position in the dehydration tub 2.

图16是表示图1的洗衣机1的脱水过程中的控制流程的流程图。Fig. 16 is a flowchart showing a control flow in the spin-drying process of the washing machine 1 of Fig. 1.

图17是表示偏心位置调整处理的流程图。Fig. 17 is a flowchart showing an eccentric position adjustment process.

图18是表示获取自加速度传感器56的加速度与获取自接近开关55的脉冲信号ps的关系的图表。FIG. 18 is a graph showing the relationship between the acceleration obtained from the acceleration sensor 56 and the pulse signal ps obtained from the proximity switch 55.

图19是表示偏心量/偏心位置测量的处理的流程图。Fig. 19 is a flowchart showing the processing of eccentricity/eccentric position measurement.

图20是表示启动判定的处理的流程图。Fig. 20 is a flowchart showing a process of start determination.

图21是表示脱水本过程的流程图。Fig. 21 is a flowchart showing this process of dehydration.

图22是表示图1的洗衣机1的脱水过程的概要的图表。Fig. 22 is a graph showing the outline of the spin-drying process of the washing machine 1 of Fig. 1.

图23是表示注水过程的处理的流程图。Fig. 23 is a flowchart showing the processing of the water pouring process.

图24是表示脱水桶2内的不平衡状态的示意图。FIG. 24 is a schematic diagram showing an unbalanced state in the dehydration tank 2.

图25是表示各不平衡状态下的振动的变化的数据。Fig. 25 is data showing changes in vibration in each unbalanced state.

图26是表示本发明的实施方式的洗衣机1的脱水过程的变形例的流程的流程图。Fig. 26 is a flowchart showing a flow of a modified example of the spin-drying process of the washing machine 1 according to the embodiment of the present invention.

图27是表示本发明的实施方式的洗衣机1的脱水过程的变形例的流程的流程图。Fig. 27 is a flowchart showing a flow of a modified example of the spin-drying process of the washing machine 1 according to the embodiment of the present invention.

附图标记说明Description of Reference Signs

1：洗衣机；2：脱水桶；2c：脱水桶的底部；3：外桶；4：波轮；5：接水环单元；5a、5b、5c：导水槽；8：折流板(通水管部)；30：喷嘴单元；55：接近开关(位置检测装置)；56：加速度传感器(加速度检测部)；60：控制部(控制部)；65：不平衡量检测部(偏心检测部)；66：不平衡位置检测部(偏心检测部)；80：循环水口。1: Washing machine; 2: Dewatering bucket; 2c: The bottom of the dewatering bucket; 3: Outer bucket; 4: Wave wheel; 5: Water receiving ring unit; 5a, 5b, 5c: Water guide trough; 8: Baffle (water pipe Section); 30: nozzle unit; 55: proximity switch (position detection device); 56: acceleration sensor (acceleration detection section); 60: control section (control section); 65: unbalance detection section (eccentricity detection section); 66 : Unbalanced position detection unit (eccentricity detection unit); 80: circulating nozzle.

具体实施方式Detailed ways

以下，基于附图对本发明的实施方式的洗衣机1进行详细说明。Hereinafter, the washing machine 1 according to the embodiment of the present invention will be described in detail based on the drawings.

图1是表示本发明的实施方式的立式洗衣机(以下，称为“洗衣机”。)1的外观的立体图。图2是表示本实施方式的洗衣机1的结构的示意图。图3是从上方观察本实施方式的洗衣机1的局部的俯视图。图4是洗衣机1所具有的脱水桶2的横剖图。图5是本实施方式的洗衣机1的局部纵剖图。Fig. 1 is a perspective view showing the appearance of a vertical washing machine (hereinafter referred to as "washing machine") 1 according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing the structure of the washing machine 1 of the present embodiment. Fig. 3 is a plan view of a part of the washing machine 1 of the present embodiment viewed from above. FIG. 4 is a cross-sectional view of the dewatering tub 2 included in the washing machine 1. As shown in FIG. Fig. 5 is a partial vertical cross-sectional view of the washing machine 1 of the present embodiment.

本实施方式的洗衣机1具备：洗衣机主体1a、脱水桶2、外桶3、接水环单元5、喷嘴单元30、驱动部50以及控制部60(参照图9)。The washing machine 1 of this embodiment includes a washing machine main body 1a, a dehydrating tub 2, an outer tub 3, a water receiving ring unit 5, a nozzle unit 30, a drive unit 50, and a control unit 60 (see FIG. 9).

图1所示的洗衣机主体1a呈大致长方体形状。在洗衣机主体1a的上表面，形成有用于向脱水桶2投入取出洗涤物的开口11，并且装配有能对该开口11进行开闭的开闭盖11a。The washing machine main body 1a shown in FIG. 1 has a substantially rectangular parallelepiped shape. On the upper surface of the washing machine main body 1a, an opening 11 for loading and unloading laundry into the dehydration tub 2 is formed, and an opening and closing cover 11a capable of opening and closing the opening 11 is mounted.

外桶3是配置于洗衣机主体1a的内部的有底筒状的构件，内部可贮留洗涤水。如图2所示，在外桶3的外周面3a装配有能检测左右方向、上下方向以及前后方向这三个方向的加速度的加速度传感器56。The outer tub 3 is a bottomed cylindrical member arranged inside the washing machine main body 1a, and can store washing water inside. As shown in FIG. 2, the outer peripheral surface 3 a of the tub 3 is equipped with an acceleration sensor 56 capable of detecting acceleration in three directions: the left-right direction, the vertical direction, and the front-rear direction.

脱水桶2是与外桶3同轴地配置于外桶3内并且被旋转自如地支承的有底筒状的构件。脱水桶2能在内部容纳洗涤物，在其壁面2a具有许多通水孔。The dewatering tub 2 is a cylindrical member with a bottom that is arranged in the outer tub 3 coaxially with the outer tub 3 and is rotatably supported. The dewatering tub 2 can contain laundry inside, and has many water passage holes on its wall 2a.

在这样的脱水桶2的底部2c中央，旋转自如地配置有波轮(搅拌翼)4。如图2所示，波轮4具有：大致圆盘形状的波轮主体4a、形成于波轮主体4a的上表面的多个上叶片部4b以及形成于波轮主体4a的下表面的多个下叶片部4c。这样的波轮4对贮留于外桶3内的洗涤水进行搅拌而产生水流。At the center of the bottom 2c of such a dehydration tub 2, a pulsator (stirring blade) 4 is rotatably arranged. As shown in FIG. 2, the pulsator 4 has a pulsator body 4a having a substantially disc shape, a plurality of upper blade portions 4b formed on the upper surface of the pulsator body 4a, and a plurality of lower blades formed on the lower surface of the pulsator body 4a.部4c. Such a pulsator 4 agitates the washing water stored in the outer tub 3 to generate a water flow.

如图4所示，在脱水桶2的内周面2al，沿周向等间隔(等角度)地设有三个作为通水管部的折流板(注水管)8。各折流板8沿上下方向从脱水桶2的底部2c延伸至上端部，从脱水桶2的内周面2al向轴线Sl突出地形成。此外，各折流板8呈中空状，横截面形状形成为圆弧状。如此，折流板8的形状为向脱水桶2的轴线Sl的突出小且沿脱水桶2的周向扩展的形状，能抑制脱水桶2的容纳空间变窄。As shown in FIG. 4, on the inner peripheral surface 2a1 of the dewatering bucket 2, three baffles (water injection pipes) 8 as water-passing pipe portions are provided at equal intervals (equal angles) in the circumferential direction. Each baffle 8 extends from the bottom 2c to the upper end of the dehydration tank 2 in the vertical direction, and is formed to protrude from the inner peripheral surface 2a1 of the dehydration tank 2 toward the axis S1. In addition, each baffle 8 has a hollow shape, and the cross-sectional shape is formed in an arc shape. In this way, the shape of the baffle 8 has a small protrusion toward the axis S1 of the dewatering tub 2 and a shape that expands in the circumferential direction of the dewatering tub 2, which can prevent the storage space of the dewatering tub 2 from narrowing.

如图2所示，在这样的折流板8的上端部形成有横长的循环水口80。此外，在折流板8的下端部，形成有于脱水桶2的底部2c附近，更具体而言于波轮主体4a的下方开口的开口部81。As shown in FIG. 2, a horizontally long circulating water port 80 is formed at the upper end of such a baffle 8. In addition, at the lower end of the baffle 8 is formed an opening 81 that opens in the vicinity of the bottom 2c of the dehydration tub 2, more specifically, below the pulsator main body 4a.

因此，在排水阀10a(参照图2)关闭而外桶3内贮留有洗涤水的状态的清洗过程中，如图2中箭头所示，被波轮4的下叶片部4c搅拌的洗涤水从开口部81进入而直奔折流板8内，从循环水口80排出，衣物被淋洗。并且，通过反复进行该动作，洗涤水在脱水桶2内循环。即，折流板8具有洗涤水的循环功能。Therefore, in the washing process in the state where the drain valve 10a (refer to FIG. 2) is closed and the washing water is stored in the outer tub 3, the washing water is stirred by the lower blade portion 4c of the pulsator 4 as shown by the arrow in FIG. It enters from the opening 81, goes straight into the baffle 8, and is discharged from the circulating water port 80, and the clothes are rinsed. And by repeating this operation, the washing water circulates in the dehydration tub 2. That is, the baffle 8 has a washing water circulation function.

在折流板8内的上端附近设有从循环水口80延伸至脱水桶2的内周面2a1的接近位置的分隔片8a。分隔片8a在从循环水口80的上端缘向半径方向外侧延伸后向下方弯曲。在这样的分隔片8a与脱水桶2的内周面2a1之间形成有间隙8b(参照图2)，供给自接水环单元5的调整水经由间隙8b向下方流入。In the vicinity of the upper end in the baffle 8, a partition 8a extending from the circulating water port 80 to a position close to the inner peripheral surface 2a1 of the dehydration tub 2 is provided. The partition piece 8a extends from the upper end edge of the circulating nozzle 80 outward in the radial direction and then bends downward. A gap 8b (refer to FIG. 2) is formed between the partition sheet 8a and the inner peripheral surface 2a1 of the dehydration tub 2, and the adjustment water supplied from the water receiving ring unit 5 flows in downward through the gap 8b.

接水环单元5中，如图3和图5所示，向上方开放的环状的导水槽5a、5b、5c以在径向上向脱水桶2的轴线S1重叠三层的方式形成，如图2所示固定于脱水桶2的内周面2a1的上端部。导水槽5a、5b、5c设为与折流板8数量相同，形成为独立地使调整水流向任一折流板8。In the water receiving ring unit 5, as shown in FIGS. 3 and 5, the annular water guide grooves 5a, 5b, and 5c that are open upward are formed to overlap three layers in the radial direction toward the axis S1 of the dehydration barrel 2, as shown in FIG. 2 is fixed to the upper end portion of the inner peripheral surface 2a1 of the dehydration barrel 2. The water guide grooves 5a, 5b, and 5c are provided with the same number as the baffles 8, and are formed to independently flow the adjustment water to any of the baffles 8.

导水槽5a、5b、5c的上端如图5所示配置于大致同一高度，导水槽5a、5b、5c的深度彼此不同。即，导水槽5a、5b、5c中，导水槽5a的深度na、导水槽5b的深度nb、导水槽5c的深度nc从外周侧向内周侧按上述顺序变深。因此，导水槽5a、5b、5c的底面5 _ta、5 _tb、5 _tc配置于彼此不同的高度，导水槽5a的底面5 _ta配置于最高的位置，导水槽5b的底面5 _tb、导水槽5c的底面5 _tc从外周侧向内周侧按上述顺序配置于较低的位置。 The upper ends of the water guide grooves 5a, 5b, and 5c are arranged at substantially the same height as shown in FIG. 5, and the depths of the water guide grooves 5a, 5b, and 5c are different from each other. That is, in the water guide grooves 5a, 5b, and 5c, the depth na of the water guide groove 5a, the depth nb of the water guide groove 5b, and the depth nc of the water guide groove 5c increase in the order described above from the outer peripheral side to the inner peripheral side. _{Therefore, the bottom surfaces 5 ta} , 5 _tb , and 5 _{tc of the} water guide grooves 5a, 5b, 5c are arranged at different heights, the bottom surface 5 _{ta of the} water guide groove 5a is arranged at the highest position, and the bottom surface 5 _tb of the water guide groove 5b and the water guide groove 5c The bottom surface 5 _{tc of the slab is} arranged at a lower position from the outer peripheral side to the inner peripheral side in the order described above.

导水槽5a、5b、5c中，导水槽5a的宽度(径向长度)t _a1、突出部6b的宽度(径向长度)t _b1、突出部6c的宽度(径向长度)t _c1从外周侧向内周侧按上述顺序变短。 Gutter 5a, 5b, 5c, the gutter 5a width (radial length) t _a1, the projecting portion 6b width (radial length) t _b1, the width (radial length) of the projecting portion 6c t _c1 from the outer peripheral side To the inner circumference side, it becomes shorter in the order described above.

在导水槽5a、5b、5c的上端，如图5所示分别具有从其外周壁向径向内侧突出的突出部6a、6b、6c。突出部6a、6b、6c遍及导水槽5a、5b、5c的整周地形成。突出部6a、6b、6c的径向长度在整周上相同，突出部6a的径向长度t _a2、突出部6b的径向长度t _b2、突出部6c的径向长度t _c2从外周侧向内周侧按上述顺序变短。 As shown in Fig. 5, the upper ends of the water guide grooves 5a, 5b, and 5c respectively have protrusions 6a, 6b, and 6c protruding inward in the radial direction from the outer peripheral wall. The protrusions 6a, 6b, and 6c are formed over the entire circumference of the water guide grooves 5a, 5b, and 5c. The radial lengths of the protrusions 6a, 6b, and 6c are the same over the entire circumference. The radial length t _a2 of the protrusion 6a, the radial length t _b2 of the protrusion 6b, and the radial length t _{c2 of the} protrusion 6c are from the outer circumferential side. The inner peripheral side becomes shorter in the order described above.

当在脱水桶2旋转时向导水槽5a、5b、5c内注入调整水时，调整水因离心力而贴在导水槽5a、5b、5c的外周壁。此时，由于在导水槽5a、5b、5c的上端形成有突出部6a、6b、6c，因此能防止调整水从导水槽5a、5b、5c内飞散向外部。When the adjustment water is injected into the water guide tanks 5a, 5b, 5c while the dehydration tub 2 is rotating, the adjusted water sticks to the outer peripheral walls of the water guide tanks 5a, 5b, 5c due to centrifugal force. At this time, since the protrusions 6a, 6b, and 6c are formed on the upper ends of the water guide grooves 5a, 5b, and 5c, it is possible to prevent the adjustment water from scattering to the outside from the water guide grooves 5a, 5b, 5c.

虽然导水槽5c的突出部6c形成得最短，但导水槽5c的深度最深，因此调整水会在导水槽5c的突出部6c的下方以较薄的厚度大范围贴在外周壁上。与此相对，虽然导水槽5a、5b的突出部6a、6b比导水槽5c的突出部6c形成得长，但由于导水槽5a、5b的深度比导水槽5c深，因此调整水会在导水槽5a、5b的突出部6a、6b的下方以较厚的厚度小范围贴在外周壁上。其结果是，脱水桶2能以导水槽5a、5b、5c的任一方中都有大致相同量的调整水保持于导水槽5a、5b、5c的内部的状态进行旋转。Although the protruding portion 6c of the water guide groove 5c is formed to be the shortest, the depth of the water guide groove 5c is the deepest. Therefore, the adjustment water is applied to the outer peripheral wall with a thinner thickness under the protruding portion 6c of the water guide groove 5c. In contrast, although the protrusions 6a, 6b of the water guide grooves 5a, 5b are formed longer than the protrusion 6c of the water guide groove 5c, the depth of the water guide grooves 5a, 5b is deeper than the water guide groove 5c, so the adjustment water will be in the water guide groove. The protruding parts 6a and 6b of 5a and 5b are pasted on the outer peripheral wall with a relatively thick thickness in a small range. As a result, the dewatering bucket 2 can be rotated in a state in which substantially the same amount of adjusted water is held in the water guiding tanks 5a, 5b, and 5c in any one of the water guiding tanks 5a, 5b, and 5c.

需要说明的是，如图5所示，在导水槽5a、5b、5c的上端形成有突出部6a、 6b、6c，因此在导水槽5a、5b、5c的上端形成有分别配置于突出部6a、6b、6c的径向内侧的环状的开口部35a、35b、35c。因此，注水喷嘴30a、30b、30c从形成于导水槽5a、5b、5c的上端的开口部35a、35b、35c向导水槽5a、5b、5c注入调整水。本实施方式中，形成于导水槽5a、5b、5c的上端的开口部35a、35b、35c的宽度(径向长度)形成为相同。开口部35a、35b、35c的宽度例如以考虑到注水喷嘴30a、30b、30c的直径的方式被设定为使来自注水喷嘴30a、30b、30c的调整水被恰当地注水至导水槽5a、5b、5c内。It should be noted that, as shown in FIG. 5, protrusions 6a, 6b, and 6c are formed on the upper ends of the water channels 5a, 5b, and 5c, and therefore, protrusions 6a are formed on the upper ends of the water channels 5a, 5b, and 5c, respectively. , 6b, 6c radially inner ring-shaped openings 35a, 35b, 35c. Therefore, the water injection nozzles 30a, 30b, and 30c inject adjustment water from the openings 35a, 35b, and 35c formed at the upper ends of the water guide grooves 5a, 5b, and 5c. In this embodiment, the widths (radial lengths) of the openings 35a, 35b, and 35c formed at the upper ends of the water guide grooves 5a, 5b, and 5c are formed to be the same. The width of the openings 35a, 35b, and 35c is set in consideration of the diameter of the water injection nozzles 30a, 30b, and 30c, for example, so that the adjusted water from the water injection nozzles 30a, 30b, and 30c is properly injected into the water guide grooves 5a, 5b. , Within 5c.

在导水槽5a的下端部，如图3和图6的(a)所示形成有向径向外侧开口的开口5A，导水槽5a与折流板8的内部相连通。At the lower end of the water guide groove 5a, as shown in FIGS. 3 and 6(a), an opening 5A that opens to the outside in the radial direction is formed, and the water guide groove 5a communicates with the inside of the baffle 8.

此外，在导水槽5b的下端部，如图3和图6的(b)所示形成有向径向外侧开口的开口5B，经由经过导水槽5a的下方的通水路径5Ba，导水槽5b与折流板8的内部相连通。通水路径5Ba从开口5B向水平方向且向径向外侧延伸。In addition, at the lower end of the water guide groove 5b, as shown in FIGS. 3 and 6(b), an opening 5B that opens to the radially outer side is formed. The inside of the baffle 8 communicates with each other. The water passage 5Ba extends from the opening 5B in the horizontal direction and radially outward.

此外，在导水槽5c的下端部，如图3和图6的(c)所示形成有向径向外侧开口的开口5C，经由经过导水槽5a和导水槽5b的下方的通水路径5Ca，导水槽5c与折流板8的内部相连通。通水路径5Ca从开口5C向水平方向且向径向外侧延伸。In addition, at the lower end of the water guide groove 5c, as shown in FIGS. 3 and 6(c), an opening 5C that opens to the outside in the radial direction is formed, and a water passage 5Ca that passes under the water guide groove 5a and the water guide groove 5b is formed. The water guide groove 5c communicates with the inside of the baffle 8. The water passage 5Ca extends from the opening 5C in the horizontal direction and radially outward.

在接水环单元5的外周侧装配有环状的流体平衡器12。流体平衡器12与已知的流体平衡器相同。A ring-shaped fluid balancer 12 is mounted on the outer peripheral side of the water receiving ring unit 5. The fluid balancer 12 is the same as the known fluid balancer.

图7的(a)是从内周侧观察形成于脱水桶2的内周面2a1的折流板8的图，图7的(b)是图7的(a)的a1－a1线处的剖视图。Fig. 7(a) is a view of the baffle 8 formed on the inner circumferential surface 2a1 of the dehydration barrel 2 viewed from the inner circumferential side, and Fig. 7(b) is the line a1-a1 of Fig. 7(a) Sectional view.

在折流板8的内周侧壁的下端附近，如图7的(b)所示具有向径向内侧突出的突出壁部82。即，折流板8的内周侧壁的一部分向径向内侧突出。在折流板8的内部，如图7的(a)和图7的(b)所示形成有从其外周侧壁向径向内侧突出的接水板85。接水板85配置于与突出壁部82相同的高度，接水板85的径向内侧端部85a配置于突出壁部82的内部。在接水板85的径向内侧端部85a与突出壁部82的顶端内周面之间形成有空隙，供给至贮水空间8a的调整水经由该空隙流入排水空间8b。In the vicinity of the lower end of the inner peripheral side wall of the baffle 8, as shown in FIG. 7( b ), there is a protruding wall portion 82 protruding inward in the radial direction. That is, a part of the inner peripheral side wall of the baffle 8 protrudes inward in the radial direction. In the inside of the baffle 8, as shown in FIG. 7(a) and FIG. 7(b), a water-receiving plate 85 protruding inward in the radial direction from the outer peripheral side wall is formed. The water receiving plate 85 is arranged at the same height as the projecting wall portion 82, and the radially inner end 85 a of the water receiving plate 85 is arranged inside the projecting wall portion 82. A gap is formed between the radially inner end 85a of the water receiving plate 85 and the inner peripheral surface of the tip of the protruding wall 82, and the adjustment water supplied to the water storage space 8a flows into the drainage space 8b through the gap.

折流板8的内部空间具有配置于比配置有接水板85的突出壁部82靠上方的贮水空间8a和配置于比突出壁部82靠下方的排水空间8b。贮水空间8a是贮留来自导水槽5a、5b、5c的调整水的空间，排水空间8b是排出从贮水空间8a流出的调整水的空间。如图7的(a)和图7的(b)所示，相对于贮水空间8a的径向厚度与排水空间8b的径向厚度大致相同，排水空间8b的上下方向长度比贮水空间8a的上下方向长度短，并且，排水空间8b的周向长度比贮水空间8a的周向长度短。因此，贮水空间8a的体积比排水空间8b的体积大。The inner space of the baffle 8 has a water storage space 8a arranged above the protruding wall portion 82 where the water receiving plate 85 is arranged, and a drainage space 8b arranged below the protruding wall portion 82. As shown in FIG. The water storage space 8a is a space for storing the adjusted water from the water guiding tanks 5a, 5b, and 5c, and the drainage space 8b is a space for draining the adjusted water flowing out of the water storage space 8a. As shown in Figure 7(a) and Figure 7(b), the radial thickness of the water storage space 8a is approximately the same as the radial thickness of the drainage space 8b, and the vertical length of the drainage space 8b is longer than the water storage space 8a. The length in the vertical direction is short, and the circumferential length of the drainage space 8b is shorter than the circumferential length of the water storage space 8a. Therefore, the volume of the water storage space 8a is larger than the volume of the drainage space 8b.

注水至折流板8的贮水空间8a的调整水以不会流至下方的方式被配置于突出壁部82内的接水板85保持，沿接水板85的上表面向径向内侧流过突出壁部82内。当在脱水桶2旋转的状态下向折流板8的贮水空间8a注入调整水时，由于调整水会因离心力而贴在导水槽5a、5b、5c的外周壁，因此调整水会被保持于贮水空间8a内。The adjustment water poured into the water storage space 8a of the baffle 8 is held by the water-receiving plate 85 arranged in the protruding wall portion 82 so as not to flow down, and flows radially inwardly along the upper surface of the water-receiving plate 85 Through the protruding wall 82. When the adjustment water is injected into the water storage space 8a of the baffle 8 while the dewatering bucket 2 is rotating, the adjustment water will stick to the outer peripheral wall of the water guide grooves 5a, 5b, 5c due to centrifugal force, so the adjustment water will be retained In the water storage space 8a.

图8的(a)是表示作用于导水槽内的水面的重力和离心力的合力的图。图8中，在水面的相对于水平线的角度为θ(水面角度θ)的情况下，作用于水面的重力为mg，离心力为mrω ²，tanθ＝mrω ²/mg。 Fig. 8(a) is a diagram showing the resultant force of gravity and centrifugal force acting on the water surface in the water guiding tank. In FIG. 8, when the angle of the water surface with respect to the horizontal line is θ (water surface angle θ), the gravity acting on the water surface is mg, the centrifugal force is mrω ² , and tanθ=mrω ² /mg.

图8的(b)表示使脱水桶2的转数发生各种变化时的水面角度的变化。其中，脱水桶2的半径设为0.24(m)。例如，在脱水桶2的转数为100rpm的情况下，其角速度ω为10.5。此时，rω ²的值为26.3，当将重力加速度g设为9.8m/s ²时，水面角度θ为69.58度。 FIG. 8(b) shows changes in the angle of the water surface when the number of rotations of the dewatering tub 2 is changed variously. Among them, the radius of the dehydration barrel 2 is set to 0.24 (m). For example, when the number of rotations of the dewatering tub 2 is 100 rpm, the angular velocity ω is 10.5. At this time, ^{the value of rω 2} is 26.3, and when the gravitational acceleration g is set to ^{9.8 m/s 2} , the water surface angle θ is 69.58 degrees.

脱水桶2旋转时的贮水空间内的调整水的水面角度θ根据脱水桶2的转数而发生变化。即，如图8的(b)所示，在脱水桶2的转数小的情况下，离心力小，因此水面角度θ变得较小，在脱水桶2的转数大的情况下，离心力大，因此水面角度θ变得较大。The water surface angle θ of the adjusted water in the water storage space when the dehydration tub 2 rotates changes in accordance with the number of rotations of the dehydration tub 2. That is, as shown in FIG. 8(b), when the number of rotations of the dewatering tub 2 is small, the centrifugal force is small, so the water surface angle θ becomes smaller, and when the number of rotations of the dewatering tub 2 is large, the centrifugal force is large , So the water surface angle θ becomes larger.

注水至折流板8的调整水能通过接水板85被维持在折流板8内，直到达到与脱水桶2的各转数相应的调整水的注水限制量(可注水的上限量)，而当超过该注水限制量时，与超过的量相应的调整水会经由形成于接水板85的径向内侧端部85a与突出壁部82的顶端内周面之间的空隙被排出。The adjustment water injected to the baffle 8 can be maintained in the baffle 8 through the water receiving plate 85 until it reaches the limit amount (upper limit of water injection) of the adjustment water corresponding to each number of rotations of the dewatering bucket 2, When the water injection restriction amount is exceeded, the adjustment water corresponding to the exceeded amount is discharged through the gap formed between the radially inner end 85a of the water receiving plate 85 and the inner peripheral surface of the tip end of the protruding wall 82.

在上述的折流板8内能通过接水板85来维持的调整水的注水限制量根据与脱水桶2的各转数对应的水面角度θ而发生变化。即，在脱水桶2的转数小的情况下，水面角度θ较小，因此调整水的注水限制量变少，在脱水桶2的转数大的情况下，水面角度θ较大，因此调整水的注水限制量变多。本实施方式的折流板8中，可向折流板8注水的注水制限量会根据脱水桶2的转数而发生变化。The water injection restriction amount of the adjustment water that can be maintained by the water receiving plate 85 in the above-mentioned baffle 8 changes according to the water surface angle θ corresponding to each number of rotations of the dewatering tub 2. That is, when the number of rotations of the dewatering tank 2 is small, the water surface angle θ is small, so the water injection restriction amount of the adjustment water is reduced, and when the number of rotations of the dewatering tank 2 is large, the water surface angle θ is large, so the water surface angle θ is large. The amount of water injection limit increased. In the baffle 8 of this embodiment, the limit of the water injection system that can be poured into the baffle 8 changes according to the number of rotations of the dewatering bucket 2.

本实施方式中，接水板85的位置(上下方向高度)和径向长度设定为：当脱水桶2的转数超过共振转数时，贮留于接水板85的上方的调整水的重心位于与脱水桶2的高度方向中央大致相同的高度(脱水桶2的高度方向中央部)。In this embodiment, the position (the height in the vertical direction) and the radial length of the water receiving plate 85 are set to be: when the rotation speed of the dehydration bucket 2 exceeds the resonance rotation number, the amount of the adjustment water stored above the water receiving plate 85 The center of gravity is located at approximately the same height as the center in the height direction of the dehydration tub 2 (the center in the height direction of the dehydration tub 2).

例如，图7的(b)中示出了共振转数为200rpm的情况的水面，此时，贮留于折流板8的接水板85的上方的调整水的重心设定为位于脱水桶2的高度方向中央的附近。需要说明的是，图7的(b)中，在导出贮留于折流板8的接水板85的上方的调整水的水量时，调整水不会向比贮水空间8a靠径向内侧贮水，因此其水量会减少。For example, FIG. 7(b) shows the water surface when the resonance speed is 200 rpm. At this time, the center of gravity of the adjusted water stored above the water receiving plate 85 of the baffle 8 is set to be located in the dehydration tank. Near the center of the height direction of 2. It should be noted that, in FIG. 7(b), when the amount of the adjustment water stored above the water receiving plate 85 of the baffle 8 is derived, the adjustment water does not go radially inward than the water storage space 8a Storage water, so its water volume will be reduced.

喷嘴单元30独立地向这样的导水槽5a、5b、5c注入调整水。喷嘴单元30具有配置于导水槽5a、5b、5c的上方的三根注水喷嘴30a、30b、30c和分别与这些注水喷嘴30a、30b、30c连接的供水阀31a、31b、31c。注水喷嘴30a、30b、30c设为与导水槽5a、5b、5c数量相同，分别在能向各个导水槽5a、5b、5c注水的位置处装配于外桶3的上端部。需要说明的是，本实施方式中使用自来水来作为调整水。此外，作为供水阀31a、31b、31c，可以采用方向切换供水阀。The nozzle unit 30 independently injects adjustment water into such water guide grooves 5a, 5b, and 5c. The nozzle unit 30 has three water injection nozzles 30a, 30b, and 30c arranged above the water guide grooves 5a, 5b, and 5c, and water supply valves 31a, 31b, and 31c connected to the water injection nozzles 30a, 30b, and 30c, respectively. The water injection nozzles 30a, 30b, and 30c are provided in the same number as the water guide grooves 5a, 5b, and 5c, and are respectively mounted on the upper end of the outer tub 3 at positions where water can be injected into the water guide grooves 5a, 5b, and 5c. In addition, in this embodiment, tap water is used as adjustment water. In addition, as the water supply valves 31a, 31b, and 31c, a direction switching water supply valve may be adopted.

当采用这样的结构时，在排水阀10a打开而外桶3内的洗涤水从排水口10排出的脱水过程中，从喷嘴单元30的任一注水喷嘴30a、30b、30c注入接水环单元5的导水槽5a、5b、5c内的调整水流入折流板8内。When this structure is adopted, during the dehydration process in which the drain valve 10a is opened and the washing water in the outer tub 3 is discharged from the drain port 10, any water injection nozzle 30a, 30b, 30c of the nozzle unit 30 is injected into the water receiving ring unit 5. The adjusted water in the water guide grooves 5a, 5b, and 5c flows into the baffle 8.

例如，在从注水喷嘴30a注入调整水的情况下，如图6的(a)中的箭头所示，调整水从导水槽5a经由开口5A流入折流板8a。同样，在从注水喷嘴30b注入调整水的情况下，如图6的(b)中的箭头所示，调整水从导水槽5b经由通水路径5Ba和开口5B流入折流板8b。在从注水喷嘴30c注入调整水的情况下，如图6的(c)中的箭头所示，调整水从导水槽5c经由通水路径5Ca和开口5C流入折流板8c。For example, when the adjustment water is injected from the water injection nozzle 30a, as shown by the arrow in FIG. 6(a), the adjustment water flows into the baffle 8a from the water guide groove 5a through the opening 5A. Similarly, when the adjustment water is injected from the water injection nozzle 30b, as shown by the arrow in FIG. 6(b), the adjustment water flows into the baffle 8b from the water guide groove 5b via the water passage 5Ba and the opening 5B. When the adjustment water is injected from the water injection nozzle 30c, as shown by the arrow in FIG. 6(c), the adjustment water flows into the baffle 8c from the water guide groove 5c via the water passage 5Ca and the opening 5C.

当脱水桶2处于高速旋转状态时，流入折流板8内的调整水因离心力而贴在脱水桶2的内周面2a1，滞留于此。由此，折流板8的重量增加，脱水桶2的平衡发生变化。如此，折流板8为能通过离心力来贮留调整水的口袋式折流板(Pocket baffle)构造。而且，当脱水过程接近结束而脱水桶2的转速降低时，折流板8内的离心力逐步减弱，调整水因重力而从开口部81流出，经由排水管10排向外桶3外。此时，调整水经由开口部81向波轮主体4a的下方流入。因此，调整水以不会沾湿位于比波轮主体4a靠上方的衣物的方式被排水。When the dewatering tub 2 is rotating at a high speed, the adjustment water flowing into the baffle 8 sticks to the inner peripheral surface 2a1 of the dewatering tub 2 due to centrifugal force and stays there. As a result, the weight of the baffle 8 increases, and the balance of the dewatering bucket 2 changes. In this way, the baffle 8 has a pocket baffle structure that can store adjusted water by centrifugal force. Moreover, when the dewatering process is nearly finished and the rotation speed of the dewatering tub 2 decreases, the centrifugal force in the baffle 8 gradually weakens, and the adjustment water flows out of the opening 81 due to gravity, and is discharged out of the outer tub 3 through the drain pipe 10. At this time, the adjustment water flows in below the pulsator main body 4a through the opening 81. Therefore, the adjustment water is drained so as not to wet the clothes located above the pulsator main body 4a.

图2所示的驱动部50通过马达51使带轮52和传动带53旋转，并且使向脱水桶2的底部2c延伸出的驱动轴54旋转，对脱水桶2、波轮4施加驱动力，使脱水桶2、波轮4旋转。洗衣机1在清洗过程中主要仅使波轮4旋转，在脱水过程中使脱水桶2和波轮4一体地高速旋转。此外，在一方的带轮53的附近设有能检测形成于带轮52的标记52a的通过的接近开关55。The driving part 50 shown in FIG. 2 rotates the pulley 52 and the transmission belt 53 through the motor 51, and rotates the drive shaft 54 extending to the bottom 2c of the dehydration barrel 2 to apply driving force to the dehydration barrel 2 and the pulsator 4 to make The dehydration barrel 2 and the pulsator 4 rotate. The washing machine 1 mainly only rotates the pulsator 4 during the washing process, and rotates the dehydration tub 2 and the pulsator 4 integrally at high speed during the dehydration process. In addition, a proximity switch 55 capable of detecting the passage of the mark 52a formed on the pulley 52 is provided in the vicinity of the pulley 53 on one side.

图9是表示本实施方式的洗衣机1的电结构的框图。洗衣机1的工作由包括微型计算机的控制部60来控制。控制部60具备负责整个***的控制的中央控制部(CPU)61，在该控制部60连接有存储器62。通过控制部60，由微型计算机执行储存于存储器62的程序，由此执行预定的运转动作，并且，在存储器62临时存储有执行上述程序时用到的数据等。Fig. 9 is a block diagram showing the electrical configuration of the washing machine 1 of the present embodiment. The operation of the washing machine 1 is controlled by a control unit 60 including a microcomputer. The control unit 60 includes a central control unit (CPU) 61 in charge of control of the entire system, and a memory 62 is connected to the control unit 60. The program stored in the memory 62 is executed by the control unit 60 by the microcomputer, thereby executing a predetermined operation operation, and the memory 62 temporarily stores data and the like used when executing the above-mentioned program.

此外，作为分别在以下进行详细说明的值，存储器62中储存有：比脱水桶2的共振点(共振转数)CP低的规定转数(N1)；作为偏心量阈值(ma)的第一偏心量阈值(ma ₁)、第二偏心量阈值(ma ₂)以及第三偏心量阈值(ma ₃)；作为可注水上限转数(Na)的第一可注水上限转数(Na ₁)和第二可注水上限转数(Na ₂)；作为加速阈值(mc)的第一加速阈值(mc ₁)、第二加速阈值(mc ₂)以及第三加速阈值(mc ₃)；脱水稳定转数等。需要说明的是，本实施方式中，脱水桶2的共振点(共振转数)CP设定为比外桶3自身的共振转数低。 In addition, as values to be described in detail below, the memory 62 stores: a predetermined number of revolutions (N1) lower than the resonance point (resonance number of revolutions) CP of the dehydration tank 2; the first as the eccentricity threshold (ma) The eccentric amount threshold (ma ₁ ), the second eccentric amount threshold (ma ₂ ), and the third eccentric amount threshold (ma ₃ ); as the upper limit of water injection (Na), the first upper limit of water injection (Na ₁ ) and The second upper limit of water injection rotation (Na ₂ ); the first acceleration threshold (mc ₁ ), the second acceleration threshold (mc ₂ ), and the third acceleration threshold (mc ₃ ) as the acceleration threshold (mc); the dehydration stable rotation number Wait. It should be noted that in this embodiment, the resonance point (resonance rotation speed) CP of the dehydration tub 2 is set to be lower than the resonance rotation speed of the outer tub 3 itself.

(偏心量阈值)(Eccentricity threshold)

偏心量阈值(ma)是用于判断是否从注水喷嘴30a、30b、30c向导水槽5a、5b、5c开始调整水的注水处理的脱水桶2内的偏心量的阈值。因此，在脱水桶2内的偏心量高于偏心量阈值(ma)的情况下，实施注入处理。The eccentricity threshold (ma) is a threshold for judging whether or not to adjust the eccentricity in the dehydration tank 2 of the water injection process from the water injection nozzles 30a, 30b, and 30c to the water guide tanks 5a, 5b, and 5c. Therefore, when the amount of eccentricity in the dehydration tank 2 is higher than the eccentric amount threshold value (ma), the injection process is performed.

作为偏心量阈值(ma)，如图10所示，在脱水桶2的转数小于共振转数的状态下，无论脱水桶2内的偏心位置如何，都设定有第一偏心量阈值(ma ₁)。此外，在脱水桶2的转数比共振转数大的状态下，在脱水桶2内的偏心位置位于脱水桶2的下部的情况下设定有第二偏心量阈值(ma ₂)，在位于脱水桶2的上部的情况和位于脱水桶2的高度方向中央部的情况下设定有第三偏心量阈值(ma ₃)。第三偏心量阈值(ma ₃)是比第二偏心量阈值(ma ₂)小的值。 As the eccentricity threshold value (ma), as shown in FIG. 10, in a state where the rotation speed of the dehydration tank 2 is less than the resonance rotation number, regardless of the eccentric position in the dehydration tank 2, a first eccentricity threshold value (ma ₁ ). In addition, in a state where the number of rotations of the dehydration tank 2 is greater than the number of resonance rotations, a second eccentricity threshold value (ma ₂ ) is set when the eccentric position in the dehydration tank 2 is located at the lower part of the dehydration tank 2. _{The third eccentricity threshold value (ma 3} ) is set in the case of the upper part of the dehydration tub 2 and the case of the center portion in the height direction of the dehydration tub 2. The third eccentricity threshold (ma ₃ ) is a value smaller than the second eccentricity threshold (ma ₂ ).

即，在脱水桶2的转数比共振转数大的状态下，在偏心位于脱水桶2内的上部或高度方向中央部的情况下，与偏心位于脱水桶2内的下部的情况相比，通过脱水桶2的上端部处的加振力，外桶3的上端部的振动变大，喷嘴单元30的注水喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系容易发生变化，因此第三偏心量阈值(ma ₃)被设定为比第二偏心量阈值(ma ₂)小的值，以便能在注水喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系不易发生变化的早期阶段开始注水处理。 That is, in a state where the number of rotations of the dehydration tank 2 is greater than the number of resonance rotations, when the eccentricity is located in the upper part of the dehydration tank 2 or the center in the height direction, compared with the case where the eccentricity is located in the lower part of the dehydration tank 2, Due to the vibrating force at the upper end of the dewatering barrel 2, the vibration of the upper end of the outer barrel 3 becomes larger, and the positional relationship between the water injection nozzles 30a, 30b, 30c of the nozzle unit 30 and the water guide grooves 5a, 5b, 5c is likely to change. Therefore, the third eccentricity threshold (ma ₃ ) is set to a value smaller than the second eccentricity threshold (ma ₂ ), so that the positional relationship between the water injection nozzles 30a, 30b, 30c and the water guide grooves 5a, 5b, 5c is not easy. The water injection treatment was started at the early stage of the change.

(可注水上限转数)(Maximum number of revolutions that can be injected)

可注水上限转数(Na)是能从注水喷嘴30a、30b、30c向导水槽5a、5b、5c实施调整水的注入处理的脱水桶2的转数的上限值。因此，在脱水桶2的转数为可注水上限转数(Na)以下的情况下，根据脱水桶2的偏心量的大小来实施注水处理，但在脱水桶2的转数比可注水上限转数(Na)大的情况下，无论脱水桶2的偏心量的大小如何都不实施注水处理。The upper limit of the number of revolutions that can be poured (Na) is the upper limit of the number of revolutions of the dewatering bucket 2 that can perform the injection process of the adjustment water from the water injection nozzles 30a, 30b, 30c to the water guide tanks 5a, 5b, 5c. Therefore, when the number of rotations of the dewatering tank 2 is less than the upper limit of water injection (Na), the water injection treatment is performed according to the amount of eccentricity of the dewatering tank 2, but the number of rotations of the dewatering tank 2 is higher than the upper limit of water injection. When the number (Na) is large, water injection processing is not performed regardless of the amount of eccentricity of the dehydration tank 2.

作为可注水上限转数(Na)，如图11所示，在脱水桶2内的偏心位置位于脱水桶2的下部的情况下，设定有第一可注水上限转数(Na ₁)，在位于脱水桶2的上部的情况和位于脱水桶2的高度方向中央部的情况下，设定有第二可注水上限转数(Na ₂)。第二可注水上限转数(Na ₂)是比第一可注水上限转数(Na ₁)小的值。 As the upper limit of water injection (Na), as shown in FIG. 11, when the eccentric position in the dehydration tank 2 is located at the lower part of the dehydration tank 2, the first maximum number of rotations (Na ₁ ) that can be injected is set. In the case where it is located in the upper part of the dehydration tank 2 and in the case where it is located in the middle part of the height direction of the dehydration tank 2, the second maximum number of revolutions (Na ₂ ) that can be filled with water is set. The second upper limit of water injection (Na ₂ ) is a value smaller than the first upper limit of water injection (Na ₁ ).

即，在偏心位于脱水桶2内的上部或高度方向中央部的情况下，在脱水桶2的转数变高而接近外桶3的共振转数时，外桶3共振而大幅振动，由此注水喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系容易发生变化，因此第二可注水上限转数(Na ₂)被设定为比第一可注水上限转数(Na ₁)小的值，以便在脱水桶2的转数尚未接近外桶3的共振转数的低转数阶段停止向折流板8注水。 That is, in the case of eccentrically located in the upper part of the dehydration tub 2 or the center in the height direction, when the rotation speed of the dehydration tub 2 becomes high and approaches the resonance rotation speed of the outer tub 3, the outer tub 3 resonates and vibrates greatly, thereby The positional relationship between the water injection nozzles 30a, 30b, 30c and the water guide grooves 5a, 5b, 5c is likely to change, so the second upper limit of water injection (Na ₂ ) is set to be higher than the first upper limit of water injection (Na ₁ ) A small value so that the water injection into the baffle 8 is stopped at a low rotation number stage when the rotation number of the dehydration bucket 2 is not yet close to the resonance rotation number of the outer bucket 3.

(加速阈值)(Acceleration threshold)

加速阈值(mc)是在从注水喷嘴30a、30b、30c向导水槽5a、5b、5c开始调整水的注水处理之后结束注水处理时的脱水桶2内的偏心量的阈值。因此，在开始注水处理后，在脱水桶2内的偏心量变为规定的加速阈值(mc)以下的情况下，结束注水处理。The acceleration threshold value (mc) is a threshold value of the amount of eccentricity in the dehydration tub 2 when the water injection process is terminated after the water injection process for adjusting the water from the water injection nozzles 30a, 30b, 30c to the water guide tanks 5a, 5b, 5c. Therefore, after the water injection process is started, if the amount of eccentricity in the dehydration tank 2 becomes equal to or less than the predetermined acceleration threshold (mc), the water injection process is terminated.

作为加速阈值(mc)，如图12所示，在脱水桶2的转数比共振转数小的状态下，在脱水桶2内的偏心位置位于脱水桶2的下部的情况下设定有第一加速阈值(mc ₁)，在位于脱水桶2的上部的情况和位于脱水桶2的高度方向中央部的情况下设定有第二加速阈值(mc ₂)。 As the acceleration threshold (mc), as shown in FIG. 12, in the state where the rotation speed of the dehydration tank 2 is smaller than the resonance rotation speed, the second is set when the eccentric position in the dehydration tank 2 is located at the lower part of the dehydration tank 2. An acceleration threshold (mc ₁ _{) is set with a second acceleration threshold (mc 2} ) when it is located in the upper part of the dehydration tank 2 and in the center of the dehydration tank 2 in the height direction.

第一加速阈值(mc ₁)是比第二加速阈值(mc ₂)大的值。 The first acceleration threshold (mc ₁ ) is a value larger than the second acceleration threshold (mc ₂ ).

即，随着脱水桶2的转数上升，被注入折流板8的水的重心位置会发生变化(变高)，因此在脱水桶2内的偏心位置位于脱水桶2的下部的情况下，当过量添水时会因转数上升而成为对置偏心状态，因此第一加速阈值(mc ₁)被设定为比第二加速阈值(mc ₂)大的值，以便在低转数下以不会过量添水的方式早早结束注水。 That is, as the number of rotations of the dehydration barrel 2 increases, the center of gravity of the water injected into the baffle 8 changes (increases). Therefore, when the eccentric position in the dehydration barrel 2 is located at the lower part of the dehydration barrel 2, when When excessive water is added, the number of revolutions will increase and the opposite eccentricity will be caused. Therefore, the first acceleration threshold (mc ₁ ) is set to a value larger than the second acceleration threshold (mc ₂ ) so that it will not The way of overfilling ends the water injection early.

此外，在脱水桶2的转数比共振转数大的状态下，无论脱水桶2内的偏心位置如何，都设定有第三加速阈值(mc ₃)。 In addition, in a state where the number of rotations of the dehydration tank 2 is greater than the number of resonance rotations, a third acceleration threshold value (mc ₃ ) is set regardless of the eccentric position in the dehydration tank 2.

中央控制部61向转速控制部63输出控制信号，进而将该控制信号输出给马达控制部(马达控制电路)64来进行马达51的旋转控制。需要说明的是，转速控制部63从马达控制部64实时输入表示马达51的转速的信号，以其作为控制要素。The central control unit 61 outputs a control signal to the rotation speed control unit 63, and further outputs the control signal to the motor control unit (motor control circuit) 64 to control the rotation of the motor 51. It should be noted that the rotation speed control unit 63 inputs a signal indicating the rotation speed of the motor 51 from the motor control unit 64 in real time, and uses this signal as a control element.

在不平衡量检测部65连接有加速度传感器56。在不平衡位置检测部66连接有加速度传感器56和接近开关55。本实施方式中，通过不平衡量检测部65和不平衡位置检测部66来构成偏心检测部。An acceleration sensor 56 is connected to the unbalance detection unit 65. An acceleration sensor 56 and a proximity switch 55 are connected to the unbalanced position detection unit 66. In the present embodiment, the unbalanced amount detection unit 65 and the unbalanced position detection unit 66 constitute an eccentricity detection unit.

由此，当接近开关55感测到标记52a(参照图2)时，根据获取自加速度传感器56的左右方向、上下方向以及前后方向的加速度的大小，通过不平衡量检测部65来计算脱水桶2的偏心量(M)，该偏心量(M)被输入不平衡量判定部67。Thus, when the proximity switch 55 senses the mark 52a (refer to FIG. 2), the dewatering tub 2 is calculated by the unbalance detection unit 65 based on the magnitude of the acceleration in the left-right, up-down, and front-rear directions acquired from the acceleration sensor 56 The amount of eccentricity (M) of, and the amount of eccentricity (M) is input to the unbalance amount determining unit 67.

不平衡位置检测部66根据从接近开关55输入的表示标记52a的位置的信号来计算不平衡方向的角度，将作为偏心位置(N)的不平衡位置信号输入注水控制部68。在此，不平衡方向的角度是指轴线S1的周向上的相对于折流板8的相对角度。本实施方式中，作为图16所示的一例，为了表示以轴线S1为中心等角度间隔地配置的三个折流板8(A)、8(B)、8(C)与偏心位置的相对角度，将折流板8(B)、8(C)的中间位置设定为0°。The unbalance position detection unit 66 calculates the angle of the unbalance direction based on the signal indicating the position of the mark 52a input from the proximity switch 55, and inputs the unbalance position signal as the eccentric position (N) to the water injection control unit 68. Here, the angle of the unbalance direction refers to the relative angle of the axis S1 with respect to the baffle 8 in the circumferential direction. In this embodiment, as an example shown in FIG. 16, in order to show the relative position of the three baffles 8(A), 8(B), 8(C) and the eccentric position arranged at equal angular intervals with the axis S1 as the center For the angle, set the middle position of the baffles 8 (B) and 8 (C) to 0°.

当被输入来自不平衡量判定部67和不平衡位置检测部66的表示偏心量(M)和偏心位置(N)的信号时，注水控制部68基于预先储存的控制程序来判断应该供水的折流板8及其供水量。然后，注水控制部68打开选定的供水阀31a、31b、31c，开始注入调整水W。当脱水桶2产生了预定基准以上的偏心量(M)时，注水控制部68从基于偏心量(M)的计算而选定的注水喷嘴30a开始向接水环单元5的导水槽5a、5b、5c中的至少一个注入调整水W，当偏心量(M)变为预定基准以下时，停止注入调整水W。When the signals indicating the amount of eccentricity (M) and the eccentric position (N) from the unbalance determination unit 67 and the unbalance position detection unit 66 are input, the water injection control unit 68 determines the diversion of the water supply based on the pre-stored control program Plate 8 and its water supply. Then, the water injection control unit 68 opens the selected water supply valves 31a, 31b, and 31c, and starts to inject the adjusted water W. When the eccentricity (M) of the dewatering barrel 2 is greater than a predetermined reference, the water injection control unit 68 starts from the water injection nozzle 30a selected based on the calculation of the eccentricity (M) to the water guide grooves 5a, 5b of the water receiving ring unit 5. , At least one of 5c injects the adjusted water W, and when the eccentricity (M) becomes less than a predetermined reference, the injection of the adjusted water W is stopped.

需要说明的是，本实施方式的折流板8中，如上所述，根据脱水桶2的转数，可向折流板8注水的注水限制量会发生变化，因此，注水控制部68能测量向折流板8的注水量，在脱水过程中控制喷嘴单元30使得向折流板8的注水量不超过与脱水桶2的转数相应的注水限制量。It should be noted that in the baffle 8 of this embodiment, as described above, according to the number of rotations of the dewatering barrel 2, the water injection limit amount that can be injected into the baffle 8 changes, so the water injection control unit 68 can measure The amount of water injected into the baffle 8 is controlled by the nozzle unit 30 during the dehydration process so that the amount of water injected into the baffle 8 does not exceed the water injection restriction amount corresponding to the number of rotations of the dehydration bucket 2.

例如，如图13所示，在成为偏心的主要原因的洗涤物的团块D(X)位于脱水桶2的折流板8(B)与折流板8(C)之间的情况下，注水控制部68控制喷嘴单元30以便向折流板8(A)供给调整水W。此外，在洗涤物的团块D(Y)位于折流板8(A)附近的情况下，控制喷嘴单元30以便向折流板8(B)和折流板8(C)双方供给调整水W。For example, as shown in FIG. 13, when the agglomerate D(X) of the laundry which is the main cause of eccentricity is located between the baffle 8 (B) and the baffle 8 (C) of the dewatering tank 2, The water injection control unit 68 controls the nozzle unit 30 so as to supply the adjustment water W to the baffle 8 (A). In addition, when the agglomerate D (Y) of the laundry is located near the baffle 8 (A), the nozzle unit 30 is controlled to supply adjustment water to both the baffle 8 (B) and the baffle 8 (C) W.

如图14的参数表所记载的，中央控制部61使供水阀X、供水阀Z开口。本实施方式中，偏心位置(N)的指定如图15所示分为以下两种情况：通过将脱水桶2在周向上六等分，指定一个应该注水的折流板8的偏心位置(N)、指定两个应该注水的折流板8的偏心位置(N)。As described in the parameter table of FIG. 14, the central control unit 61 opens the water supply valve X and the water supply valve Z. In this embodiment, the designation of the eccentric position (N) is divided into the following two cases as shown in FIG. 15: By dividing the dehydration bucket 2 into six equal parts in the circumferential direction, designating an eccentric position (N) of the baffle 8 that should be filled with water ). Specify the eccentric positions (N) of the two baffles 8 that should be filled with water.

指定一个应该注水的折流板8的偏心位置(N)的区域Y是指区域(P(A))、(P(B))以及(P(C))。此外，需要消除偏心的偏心位置(N)的区域Y是指区域(P(AB))、(P(BC))以及(P(CA))。此外，设定为：区域 (P(A))、(P(B))以及(P(C))的以轴心S1为中心所成的角度为20°，区域(P(AB))、(P(BC))以及(P(CA))的以轴心S1为中心所成的角度为100°。The area Y specifying the eccentric position (N) of the baffle 8 to be filled with water refers to areas (P(A)), (P(B)), and (P(C)). In addition, the area Y where the eccentric position (N) needs to be eliminated refers to areas (P(AB)), (P(BC)), and (P(CA)). In addition, it is set as follows: the angle formed by the axis S1 of the regions (P(A)), (P(B)), and (P(C)) is 20°, and the regions (P(AB)), The angle formed by (P(BC)) and (P(CA)) centered on the axis S1 is 100°.

(脱水前过程)(Process before dehydration)

基于图16对脱水过程中前半部分的脱水前过程进行说明。图16是表示脱水过程中前半部分的脱水前过程的流程图。The pre-dehydration process in the first half of the dehydration process will be described based on FIG. 16. Fig. 16 is a flowchart showing the first half of the pre-dehydration process in the dehydration process.

本实施方式中，当接收到来自未图示的脱水按钮的输入信号或洗涤模式运转中旨在应该开始脱水过程的信号时，中央控制部61前往步骤SP1，开始脱水前过程。In this embodiment, when receiving an input signal from an unillustrated dehydration button or a signal intended to start the dehydration process during washing mode operation, the central control unit 61 proceeds to step SP1 to start the pre-spinning process.

<步骤SP1><Step SP1>

步骤SP1中，中央控制部61在使脱水桶2解缠绕反转后，使脱水桶2的旋转上升至比脱水桶2的共振点CP低的规定转数(N1)为止。在脱水桶2的转数达到规定转数(N1)时移至步骤SP2。本实施方式中，将规定转数(N1)设定为比作为脱水桶2的共振点CP的约200rpm低的150rpm。In step SP1, after the central control unit 61 unwinds the dehydration tub 2 and reverses it, it raises the rotation of the dehydration tub 2 to a predetermined number of revolutions (N1) lower than the resonance point CP of the dehydration tub 2. When the number of rotations of the dewatering tank 2 reaches the predetermined number of rotations (N1), it moves to step SP2. In the present embodiment, the predetermined number of revolutions (N1) is set to 150 rpm lower than about 200 rpm which is the resonance point CP of the dehydration tub 2.

<步骤SP2><Step SP2>

步骤SP2中，中央控制部61基于从加速度传感器56赋予的加速度信号，执行使偏心检测部计算偏心量(M)和偏心位置θ1的控制。具体而言，中央控制部61例如基于获取自加速度传感器56的左右方向、上下方向以及前后方向的加速度信号来计算各方向上的各个偏心量(M)。In step SP2, the central control unit 61 executes control for causing the eccentricity detection unit to calculate the eccentricity amount (M) and the eccentricity position θ1 based on the acceleration signal given from the acceleration sensor 56. Specifically, the central control unit 61 calculates the amount of eccentricity (M) in each direction based on, for example, acceleration signals in the left-right direction, the vertical direction, and the front-rear direction acquired from the acceleration sensor 56.

<步骤SP3><Step SP3>

中央控制部61对计算出的偏心量(M)和储存于存储器62的偏心量阈值(ma)进行比较，判断M＜ma是否成立，进行启动判定。中央控制部61在判断为M＜ma成立时前往步骤SP4，在判断为M＜ma不成立时前往步骤SP5。在此，步骤SP3中，作为偏心量阈值(ma)，使用第一偏心量阈值(ma ₁)，其为假定为洗涤物的偏倚大到了即使向折流板8供给调整水W也难以将偏心量(M)降低至能将脱水桶2的转数上升至脱水稳定转数的程度的情况的阈值。即，前往步骤SP5的情况是指，偏心量(M)大到了即使向折流板8供给调整水W也难以完成脱水过程的程度。 The central control unit 61 compares the calculated eccentricity amount (M) with the eccentricity amount threshold value (ma) stored in the memory 62, determines whether M<ma is established, and performs a startup determination. The central control unit 61 proceeds to step SP4 when it is determined that M<ma is established, and proceeds to step SP5 when it determines that M<ma is not established. Here, in step SP3, as the eccentricity threshold value (ma), the first eccentricity amount threshold value (ma ₁ ) is used, which is assumed to be that the eccentricity of the laundry is so large that it is difficult to eccentricity even if the adjustment water W is supplied to the baffle 8 The amount (M) is reduced to the threshold value in the case where the number of rotations of the dehydration tank 2 can be increased to the level of the stable rotation number of the dehydration. That is, the case of proceeding to step SP5 means that the amount of eccentricity (M) is so large that it is difficult to complete the dehydration process even if the adjustment water W is supplied to the baffle 8.

对偏心量阈值(ma)进一步进行说明。本实施方式中，加速度传感器56使用能分别检测左右方向、上下方向以及前后方向的加速度的传感器。而且，根据左右方向、上下方向以及前后方向的加速度信号，设定有不同的偏心量阈值(ma－x、ma－z、ma－y)。The eccentricity threshold (ma) will be further described. In the present embodiment, the acceleration sensor 56 uses a sensor capable of detecting accelerations in the left-right direction, the vertical direction, and the front-rear direction, respectively. In addition, different eccentricity thresholds (ma-x, ma-z, ma-y) are set according to the acceleration signals in the left-right direction, the vertical direction, and the front-rear direction.

<步骤SP4><Step SP4>

步骤SP4中，在步骤SP2中计算出的偏心量(M)比偏心量阈值(ma)小时，中央控制部61使脱水桶2的转数上升。此外，中央控制部61一边使脱水桶2的转数上升，一边持续执行偏心量/偏心位置测量的控制。在此，“持续”不限于连续不绝地进行的方式。当然也可以采用如下方式：当脱水桶2的转数上升至脱水稳定转数以下的任意的多个转数时，间歇地执行偏心量/偏心位置测量的控制。In step SP4, the eccentricity amount (M) calculated in step SP2 is smaller than the eccentricity amount threshold value (ma), and the central control unit 61 increases the number of rotations of the dehydration tub 2. In addition, the central control unit 61 continuously executes the control of the eccentric amount/eccentric position measurement while increasing the number of rotations of the dehydration tub 2. Here, "continuous" is not limited to a continuous way. Of course, the following method may also be adopted: when the number of rotations of the dehydration tub 2 rises to an arbitrary number of rotations below the stable rotation number of the dehydration, the control of the eccentric amount/eccentric position measurement is intermittently executed.

步骤SP5中，中央控制部61进行不平衡修正处理的控制。In step SP5, the central control unit 61 controls the imbalance correction processing.

基于图17对步骤SP5所示的不平衡修正处理的控制进行说明。图17是表示不平衡修正处理的流程的流程图。The control of the unbalance correction processing shown in step SP5 will be described based on FIG. 17. Fig. 17 is a flowchart showing the flow of an imbalance correction process.

首先，当通过步骤SP3判断为偏心量(M)大到了难以降低的程度时，停止脱水桶2的旋转(步骤SP51)。之后，向脱水桶2内供水，驱动波轮4，搅拌脱水桶2内的洗涤物，消除洗涤物的侧偏(步骤SP52)。之后，回到步骤SP1。First, when it is determined in step SP3 that the eccentricity (M) is too large to be reduced, the rotation of the dehydration tub 2 is stopped (step SP51). After that, water is supplied to the dewatering tub 2, the pulsator 4 is driven, and the laundry in the dewatering tub 2 is stirred to eliminate the side deviation of the laundry (step SP52). After that, return to step SP1.

(偏心量/偏心位置的计算)(Calculation of eccentricity/eccentric position)

基于图18～图19，对步骤SP2所示的偏心位置θ1的计算过程进行说明。The calculation process of the eccentric position θ1 shown in step SP2 will be described based on FIGS. 18 to 19.

本实施方式中，对在脱水过程中从加速度传感器56发送的表示脱水桶2的至少一个周期t2的加速度信号中任意的时点与从接近开关55发送脉冲信号ps的定时的时间差t1进行运算，根据时间差t1与脱水桶2的转数的关系来计算脱水桶2内的周向上的偏心位置θ1，基于计算出的偏心位置θ1来进行降低偏心量(M)的控制，并且将来自加速度传感器56的信号中的任一个信号用于偏心位置θ1的计算。In the present embodiment, the time difference t1 between any time point in the acceleration signal representing at least one cycle t2 of the dehydration tub 2 sent from the acceleration sensor 56 during the dehydration process and the timing at which the pulse signal ps is sent from the proximity switch 55 is calculated. Calculate the eccentric position θ1 in the circumferential direction in the dehydration drum 2 based on the relationship between the time difference t1 and the number of rotations of the dehydration drum 2, and perform control to reduce the eccentricity (M) based on the calculated eccentric position θ1, and use the acceleration sensor 56 Any one of the signals is used to calculate the eccentric position θ1.

图18是示出表示基于加速度而计算出的加速度的时间变化的信息与获取自接近开关55的脉冲信号ps的关系的图表。图18中，为了便于说明，根据获取自加速度传感器56的上下方向的加速度的极大值(Ymax)与脉冲信号ps的时间差t1来计算偏心位置θ1。需要说明的是，作为图18所示的本实施方式中的一例，示出了根据加速度的极大值(Ymax)和极小值(Ymin)来计算偏心位置θ1的方案，但作为本发明的其他实施例，也可以根据加速度零点、加速度的极大值(Ymax)、极小值(Ymin)中的任一个或多个来计算偏心位置θ1。FIG. 18 is a graph showing the relationship between the information indicating the time change of the acceleration calculated based on the acceleration and the pulse signal ps obtained from the proximity switch 55. In Fig. 18, for convenience of explanation, the eccentric position θ1 is calculated from the time difference t1 between the maximum value (Ymax) of the vertical acceleration obtained from the acceleration sensor 56 and the pulse signal ps. It should be noted that, as an example of the present embodiment shown in FIG. 18, a scheme of calculating the eccentric position θ1 based on the maximum value (Ymax) and the minimum value (Ymin) of the acceleration is shown, but it is an example of the present invention. In other embodiments, the eccentric position θ1 may also be calculated according to any one or more of the acceleration zero point, the maximum value (Ymax) and the minimum value (Ymin) of the acceleration.

图19是表示偏心量/偏心位置测量的处理流程的流程图。FIG. 19 is a flowchart showing the processing flow of eccentricity/eccentric position measurement.

<步骤SP21><Step SP21>

步骤SP21中，中央控制部61从加速度传感器56检测到左右方向、上下方向以及前后方向的加速度数据(MX、MY、MZ)。In step SP21, the central control unit 61 detects the acceleration data (MX, MY, MZ) in the left-right direction, the vertical direction, and the front-rear direction from the acceleration sensor 56.

<步骤SP22><Step SP22>

步骤SP22中，中央控制部61根据获取自加速度传感器56的加速度数据(MX、MY、MZ)和来自接近开关55的作为中断信号的脉冲信号ps，进行确定加速度数据(MX、MY、MZ)的极大值(Xmax、Ymax、Zmax)/极小值(Xmin、Ymin、Zmin)的计算处理。In step SP22, the central control unit 61 determines the acceleration data (MX, MY, MZ) based on the acceleration data (MX, MY, MZ) obtained from the acceleration sensor 56 and the pulse signal ps as the interrupt signal from the proximity switch 55. Maximum value (Xmax, Ymax, Zmax)/minimum value (Xmin, Ymin, Zmin) calculation processing.

<步骤SP23><Step SP23>

步骤SP23中，中央控制部61根据来自接近开关55的作为中断信号的多个脉冲信号ps间的间隔，计算并确定作为脱水桶2旋转一次的时间的一个周期t2的值。In step SP23, the central control unit 61 calculates and determines the value of one period t2 as the time for the spin-drying tub 2 to rotate once based on the interval between the plurality of pulse signals ps as the interrupt signal from the proximity switch 55.

<步骤SP24><Step SP24>

步骤SP24中，中央控制部61根据来自接近开关55的作为中断信号的多个脉冲信号ps和由步骤SP22获取的加速度数据(MX、MY、MZ)的极大值(Xmax、Ymax、Zmax)，计算并确定其时间差t1。在步骤SP24中，除了图18所示的作为上下方向的时间差t1的时间差t1Y以外，中央控制部61也一并计算左右方向、前后方向的时间差t1X、t1Z。In step SP24, the central control unit 61 uses the multiple pulse signals ps as interrupt signals from the proximity switch 55 and the maximum values (Xmax, Ymax, Zmax) of the acceleration data (MX, MY, MZ) acquired in step SP22, Calculate and determine the time difference t1. In step SP24, in addition to the time difference t1Y which is the time difference t1 in the vertical direction shown in FIG. 18, the central control unit 61 also calculates the time differences t1X and t1Z in the left-right direction and the front-rear direction.

<步骤SP25><Step SP25>

步骤SP25中，中央控制部61根据由步骤SP22获取的加速度数据(MX、MY、MZ)的极大值(Xmax、Ymax、Zmax)/极小值(Xmin、Ymin、Zmin)，计算并确定作为偏心量(M)的左右方向、上下方向以及前后方向各自的偏心量 Mx、My、Mz。本实施方式中，偏心量Mx、My、Mz根据极大值(Xmax、Ymax、Zmax)与极小值(Xmin、Ymin、Zmin)之差而求出。In step SP25, the central control unit 61 calculates and determines based on the maximum value (Xmax, Ymax, Zmax)/minimum value (Xmin, Ymin, Zmin) of the acceleration data (MX, MY, MZ) acquired in step SP22 as The amount of eccentricity (M) is the amount of eccentricity Mx, My, and Mz in the left-right direction, the vertical direction, and the front-rear direction. In the present embodiment, the eccentricity amounts Mx, My, and Mz are calculated from the difference between the maximum value (Xmax, Ymax, Zmax) and the minimum value (Xmin, Ymin, Zmin).

<步骤SP26><Step SP26>

步骤SP26中，中央控制部61根据由步骤SP23获取的一个周期t2、由步骤SP24获取的时间差tl，通过以下的式子计算并确定左右方向、上下方向以及前后方向各自的偏心位置θX1、θY1、θZ1。In step SP26, the central control unit 61 calculates and determines the respective eccentric positions θX1, θY1, θX1, θY1, in the left-right direction, the vertical direction, and the front-rear direction by the following equations based on the period t2 obtained in step SP23 and the time difference t1 obtained in step SP24. θZ1.

θX1＝t1X×360÷t2θX1=t1X×360÷t2

θY1＝t1Y×360÷t2θY1=t1Y×360÷t2

θZ1＝t1Z×360÷t2θZ1=t1Z×360÷t2

(启动判定)(Start Judgment)

基于图20对步骤SP3所示的启动判定进行说明。图20是表示启动判定的流程的流程图。The activation determination shown in step SP3 will be described based on FIG. 20. Fig. 20 is a flowchart showing the flow of activation determination.

<步骤SP31><Step SP31>

步骤SP31中，中央控制部61选择出由步骤SP25确定出的左右方向的偏心量Mx和前后方向的偏心量Mz中表示较大数值的偏心量(M)。本实施方式中，为了便于说明，将选择出的偏心量(M)记为偏心量Mxz。In step SP31, the central control unit 61 selects the amount of eccentricity (M) that represents a larger value among the amount of eccentricity Mx in the left-right direction and the amount of eccentricity Mz in the front-rear direction determined in step SP25. In this embodiment, for convenience of description, the selected eccentricity (M) is referred to as the eccentricity Mxz.

<步骤SP32><Step SP32>

步骤SP32中，中央控制部61判定偏心量Mxz是否高于作为偏心量阈值(ma)的阈值mxz。当偏心量Mxz低于阈值mxz时，中央控制部61移至步骤SP33。当偏心量Mxz高于阈值mxz时，中央控制部61判定为不可启动，移至步骤SP5进行偏心量调整处理。In step SP32, the central control unit 61 determines whether or not the eccentricity amount Mxz is higher than the threshold value mxz as the eccentricity amount threshold value (ma). When the eccentricity amount Mxz is lower than the threshold value mxz, the central control unit 61 moves to step SP33. When the eccentricity amount Mxz is higher than the threshold value mxz, the central control unit 61 determines that it is not possible to start, and moves to step SP5 to perform the eccentricity amount adjustment processing.

<步骤SP33><Step SP33>

步骤SP33中，中央控制部61判定上下方向的偏心量My是否高于作为偏心量阈值(ma)的阈值my。当偏心量My低于阈值my时，中央控制部61判定为可启动。该情况下使脱水桶2的转数上升。当偏心量My高于阈值my时，中央控制部61判定为不可启动，移至步骤SP5进行偏心量调整处理。In step SP33, the central control unit 61 determines whether or not the amount of eccentricity My in the vertical direction is higher than a threshold value my which is a threshold value (ma) of the amount of eccentricity. When the amount of eccentricity My is lower than the threshold value my, the central control unit 61 determines that the start is possible. In this case, the number of rotations of the dehydration tank 2 is increased. When the amount of eccentricity My is higher than the threshold value my, the central control unit 61 determines that the activation is not possible, and moves to step SP5 to perform the amount of eccentricity adjustment processing.

(脱水本过程)(This process of dehydration)

以下，基于图21对步骤SP4往后的脱水本过程的控制进行说明。图21是表示脱水本过程的流程的流程图。Hereinafter, the control of the dehydration process after step SP4 will be described based on FIG. 21. Fig. 21 is a flowchart showing the flow of the dehydration process.

<步骤SP51><Step SP51>

步骤SP51中，中央控制部61使脱水桶2的转数每秒依次上升20rpm，直至其转数达到400rpm。中央控制部61一边进行步骤SP51一边并行地执行步骤SP6。In step SP51, the central control unit 61 sequentially increases the number of rotations of the dehydration tub 2 by 20 rpm per second until the number of rotations reaches 400 rpm. The central control unit 61 performs step SP6 in parallel while performing step SP51.

<步骤SP52><Step SP52>

步骤SP52中，中央控制部61判定脱水桶2的转数是否达到了400rpm。当转数尚未达到400rpm时，中央控制部61移至步骤SP51。当转数达到400rpm时，中央控制部61移至步骤SP63。In step SP52, the central control unit 61 determines whether the number of rotations of the dehydration tub 2 has reached 400 rpm. When the number of revolutions has not reached 400 rpm, the central control unit 61 moves to step SP51. When the number of revolutions reaches 400 rpm, the central control unit 61 moves to step SP63.

<步骤SP53><Step SP53>

步骤SP53中，中央控制部61使脱水桶2的转数每秒依次上升5rpm，直至其转数达到600rpm。中央控制部61一边进行步骤SP53一边并行地执行步骤SP6。In step SP53, the central control unit 61 sequentially increases the number of rotations of the dehydration tub 2 by 5 rpm per second until the number of rotations reaches 600 rpm. The central control unit 61 performs step SP6 in parallel while performing step SP53.

<步骤SP54><Step SP54>

步骤SP54中，中央控制部61判定脱水桶2的转数是否达到了600rpm。当转数尚未达到600rpm时，中央控制部61移至步骤SP53。当转数达到600rpm时，中央控制部61移至步骤SP55。在此，脱水桶2的转数往400～600rpm上升时的加速度比其他旋转区域低是因为，该旋转区域与其他旋转区域相比，从洗涤物脱水的水量多，降低因被脱水的水而导致的额外噪音In step SP54, the central control unit 61 determines whether the number of rotations of the dehydration tub 2 has reached 600 rpm. When the number of revolutions has not reached 600 rpm, the central control unit 61 moves to step SP53. When the number of revolutions reaches 600 rpm, the central control unit 61 moves to step SP55. Here, the acceleration when the rotation speed of the dewatering tub 2 rises from 400 to 600 rpm is lower than that of other rotation regions because this rotation region has a larger amount of water dewatering from the laundry than other rotation regions, and reduces the amount of water that is dehydrated. Additional noise

<步骤SP55><Step SP55>

步骤SP55中，中央控制部61使脱水桶2的转数每秒依次上升20rpm，直至其转数达到800rpm。中央控制部61一边进行步骤SP55一边并行地执行步骤SP6。In step SP55, the central control unit 61 sequentially increases the number of rotations of the dehydration tub 2 by 20 rpm per second until the number of rotations reaches 800 rpm. The central control unit 61 executes step SP6 in parallel while executing step SP55.

<步骤SP56><Step SP56>

步骤SP56中，中央控制部61判定脱水桶2的转数是否达到了800rpm。当转数尚未达到800rpm时，中央控制部61移至步骤SP55。当转数达到800rpm时，中央控制部61移至步骤SP57。In step SP56, the central control unit 61 determines whether the number of rotations of the dehydration tub 2 has reached 800 rpm. When the number of revolutions has not reached 800 rpm, the central control unit 61 moves to step SP55. When the number of revolutions reaches 800 rpm, the central control unit 61 moves to step SP57.

<步骤SP57><Step SP57>

步骤SP57中，当脱水桶2的转数达到作为脱水稳定转数的800rpm时，中央控制部61在该状态下继续脱水过程，在确定经过预定的时间后结束洗涤。换而言之，中央控制部61与通常的洗涤中的脱水过程同样地使脱水桶2以脱水稳定转数旋转规定时间来进行脱水处理。之后，结束脱水处理。然后，脱水结束而脱水桶2开始减速，当离心力低于重力加速度时，折流板8内的调整水W流出，被排水。In step SP57, when the rotation number of the dehydration tub 2 reaches 800 rpm, which is the stable rotation number of the dehydration, the central control unit 61 continues the dehydration process in this state, and ends the washing after determining that a predetermined time has elapsed. In other words, the central control unit 61 performs the dehydration process by rotating the dehydration tub 2 at a stable dehydration rotation speed for a predetermined time, similarly to the dehydration process in normal washing. After that, the dehydration treatment is ended. Then, the dehydration ends and the dehydration bucket 2 starts to decelerate. When the centrifugal force is lower than the gravitational acceleration, the adjustment water W in the baffle 8 flows out and is drained.

图22是表示本实施方式的洗衣机1的脱水过程的概要的图表。图22中，纵轴表示脱水桶2的转数，横轴表示时间。图22中以实线示出在不向折流板8注水的状态下脱水桶2的转数达到脱水稳定转数时的转数的变迁。此外，图22中以上侧的虚拟线示出在向折流板8注水一次后转数达到脱水稳定转数时的转数的变迁，以下侧的虚拟线示出步骤SP5的脱水桶2的转数的变迁。FIG. 22 is a graph showing the outline of the spin-drying process of the washing machine 1 of the present embodiment. In FIG. 22, the vertical axis represents the number of rotations of the dehydration tank 2, and the horizontal axis represents time. In FIG. 22, the transition of the number of rotations when the number of rotations of the dehydration tub 2 reaches the stable number of rotations for dehydration is shown in a state where water is not poured into the baffle 8. In addition, the virtual line on the upper side in FIG. 22 shows the transition of the number of rotations when the number of rotations reaches the stable rotation number of dehydration after water is poured into the baffle 8 once, and the virtual line on the lower side shows the rotation of the dehydration bucket 2 in step SP5. The number of changes.

(注水过程)(Water injection process)

基于图23对步骤SP6所示的注水过程进行说明。图23是表示注水过程的概要的流程图。The water injection process shown in step SP6 will be described based on FIG. 23. Fig. 23 is a flowchart showing the outline of the water pouring process.

步骤SP6中，中央控制部61进行由图19所示的步骤SP2计算出的偏心量(M)是否比预设的偏心量阈值(ma)大的判定。偏心量(M)比偏心量阈值(ma)低时，中央控制部61不向折流板8进行注水，移至图21的脱水本过程。在偏心量(M)大于偏心量阈值(ma)的情况下，中央控制部61判定偏心位置(N)是位于脱水桶2的高度方向上的哪个位置(偏心位置高度判定)。中央控制部61基于偏心位置的高度来确定加速阈值(mc)、可注水上限转数(Na)以及偏心量阈值(ma)。之后，中央控制部61在注水过程中向折流板8进行注水，在偏心量(M)低于加速阈值(mc)之后，结束向折流板8的注水，移至图21的脱水本过程。In step SP6, the central control unit 61 determines whether the eccentricity amount (M) calculated in step SP2 shown in FIG. 19 is greater than a preset eccentricity amount threshold value (ma). When the eccentricity (M) is lower than the eccentricity threshold (ma), the central control unit 61 does not inject water into the baffle 8 and moves to the main dehydration process of FIG. 21. When the eccentricity amount (M) is greater than the eccentricity amount threshold value (ma), the central control unit 61 determines which position in the height direction of the dehydration tub 2 the eccentric position (N) is (eccentric position height determination). The central control unit 61 determines the acceleration threshold (mc), the maximum number of revolutions (Na) that can be filled with water, and the eccentricity threshold (ma) based on the height of the eccentric position. After that, the central control unit 61 injects water into the baffle 8 during the water injection process, and after the eccentricity (M) is lower than the acceleration threshold (mc), ends the water injection into the baffle 8 and moves to the dehydration process of FIG. 21 .

本实施方式的注水过程中，如上所述，主要执行在脱水桶2的转数达到150rpm以后继续进行的偏心量/偏心位置测量的处理、步骤SP602的偏心位置高度判定处理、步骤SP612的注水处理。In the water injection process of this embodiment, as described above, the eccentric amount/eccentric position measurement process that continues after the rotation speed of the dehydration tub 2 reaches 150 rpm, the eccentric position height determination process in step SP602, and the water injection process in step SP612 are mainly executed. .

<步骤SP601><Step SP601>

步骤SP601中，中央控制部61判定由步骤SP2计算出的偏心量(M)是否高于偏心量阈值(ma)。在偏心量(M)高于偏心量阈值(ma)的情况下移至步骤SP602。在偏心量(M)低于偏心量阈值(ma)的情况下结束注水过程。步骤SP601中，作为偏心量阈值(ma)，使用第一偏心量阈值(ma1)。In step SP601, the central control unit 61 determines whether the eccentricity amount (M) calculated in step SP2 is higher than the eccentricity amount threshold value (ma). If the eccentricity amount (M) is higher than the eccentricity amount threshold value (ma), it moves to step SP602. The water injection process ends when the eccentricity (M) is lower than the eccentricity threshold (ma). In step SP601, as the eccentricity threshold (ma), the first eccentricity threshold (ma1) is used.

<步骤SP602><Step SP602>

步骤SP602中，中央控制部61判定偏心位置(N)位于脱水桶2的高度方向上的哪个位置(偏心位置高度判定)。具体而言，中央控制部61判定偏心位置(N)位于脱水桶2的上部、脱水桶2的高度方向中央部、脱水桶2的下部的哪处。偏心位置高度的判定方法在后文加以说明。In step SP602, the central control unit 61 determines at which position in the height direction of the dehydration tub 2 the eccentric position (N) is located (eccentric position height determination). Specifically, the central control unit 61 determines where the eccentric position (N) is located in the upper part of the dehydration tub 2, the center in the height direction of the dehydration tub 2, and the lower portion of the dehydration tub 2. The method of determining the height of the eccentric position will be described later.

<步骤SP603><Step SP603>

步骤SP603中，中央控制部61判定脱水桶2的转数是否比共振转数小。在脱水桶2的转数小于共振转数的情况下，移至步骤SP604。脱水桶2的转数大于共振转数的情况下，移至步骤SP605。In step SP603, the central control unit 61 determines whether the number of rotations of the dehydration tub 2 is smaller than the number of resonance rotations. In the case where the number of rotations of the dehydration tank 2 is less than the number of resonance rotations, the process moves to step SP604. When the rotation speed of the dehydration tank 2 is greater than the resonance rotation speed, the process moves to step SP605.

<步骤SP604><Step SP604>

步骤SP604中，中央控制部61基于由步骤SP602判定出的偏心位置高度来确定加速阈值(mc)。具体而言，中央控制部61在偏心位置位于脱水桶2的下部的情况下将加速阈值(mc)确定为第一加速阈值(mc ₁)，在偏心位置位于脱水桶2的上部或高度方向中央部的情况下将加速阈值(mc)确定为第二加速阈值(mc ₂)。之后，移至步骤SP612。 In step SP604, the central control unit 61 determines an acceleration threshold (mc) based on the height of the eccentric position determined in step SP602. Specifically, the central control unit 61 determines the acceleration threshold (mc) as the first acceleration threshold (mc ₁ ) when the eccentric position is located at the lower part of the dehydration tub 2, and is located at the upper portion of the dehydration barrel 2 or the center in the height direction at the eccentric position. In the case of part, the acceleration threshold (mc) is determined as the second acceleration threshold (mc ₂ ). After that, move to step SP612.

<步骤SP605><Step SP605>

步骤SP605中，中央控制部61基于由步骤SP602判定出的偏心位置高度来确定可注水上限转数(Na)。具体而言，中央控制部61在偏心位置位于脱水桶2的下部的情况下将可注水上限转数(Na)确定为第一可注水上限转数(Na ₁)，在偏心位置位于脱水桶2的上部或高度方向中央部的情况下将可注水上限转数(Na)确定为第二可注水上限转数(Na ₂)。 In step SP605, the central control unit 61 determines the upper limit number of revolutions (Na) that can be filled with water based on the height of the eccentric position determined in step SP602. Specifically, when the eccentric position is located at the lower part of the dehydration tank 2, the central control unit 61 determines the upper limit of rotation (Na) that can be injected as the first upper limit of rotation (Na ₁ ), which is located in the dehydration tank 2 at the eccentric position. In the case of the upper part of the upper part or the middle part in the height direction, the upper limit of water injection (Na) is determined as the second upper limit of water injection (Na ₂ ).

<步骤SP606><Step SP606>

步骤SP606中，中央控制部61基于由步骤SP602判定出的偏心位置高度来确定偏心量阈值(ma)。具体而言，中央控制部61在偏心位置位于脱水桶2的下部的情况下将偏心量阈值(ma)确定为第二偏心量阈值(ma ₂)，在偏心位置位于脱水桶2的上部或高度方向中央部的情况下将偏心量阈值(ma)确定为第三偏心量阈值(ma ₃)。之后，移至步骤SP607。 In step SP606, the central control unit 61 determines the eccentricity amount threshold value (ma) based on the eccentric position height determined in step SP602. Specifically, the central control unit 61 determines the eccentricity threshold value (ma) as the second eccentricity threshold value (ma ₂ ) when the eccentric position is located at the lower part of the dehydration barrel 2, and is located at the upper or height of the dehydration barrel 2 at the eccentric position. In the case of the center portion of the direction, the eccentricity threshold value (ma) is determined as the third eccentricity amount threshold value (ma ₃ ). After that, move to step SP607.

<步骤SP607><Step SP607>

步骤SP607中，中央控制部61将加速阈值(mc)确定为第三加速阈值(mc)。之后，移至步骤SP608。In step SP607, the central control unit 61 determines the acceleration threshold (mc) as the third acceleration threshold (mc). After that, it moves to step SP608.

<步骤SP608><Step SP608>

步骤SP608中，中央控制部61判定脱水桶2的转数是否为由步骤SP605确定的第一可注水上限转数(Na ₁)以下。在脱水桶2的转数为第一可注水上限转数(Na ₁)以下的情况下可实施注水，移至步骤SP609。当脱水桶2的转数高于第一可注水上限转数(Na ₁)时，不可实施注水，结束注水过程。 In step SP608, the central control unit 61 determines whether or not the number of rotations of the dewatering tub 2 is less than or equal to the first upper limit number of rotations (Na ₁ ) determined by step SP605. When the number of rotations of the dewatering bucket 2 is less than the first maximum number of rotations (Na ₁ ) that can be injected, water injection can be performed, and the process moves to step SP609. When the number of rotations of the dewatering bucket 2 is higher than the first upper limit number of rotations (Na ₁ ) that can be injected, water injection cannot be performed, and the water injection process ends.

<步骤SP609><Step SP609>

步骤SP609中，中央控制部61判定由步骤SP2计算出的偏心量(M)是否高于偏心量阈值(ma)。在偏心量(M)高于偏心量阈值(ma)的情况下，移至步骤SP610。在偏心量(M)低于偏心量阈值(ma)的情况下，结束注水过程。步骤SP609中，作为偏心量阈值(ma)，在偏心位置位于脱水桶2的下部的情况下使用第二偏心量阈值(ma ₂)，在偏心位置位于脱水桶2的上部或高度方向中央部的情况下使用第三偏心量阈值(ma ₃)。 In step SP609, the central control unit 61 determines whether the eccentricity amount (M) calculated in step SP2 is higher than the eccentricity amount threshold value (ma). When the eccentricity amount (M) is higher than the eccentricity amount threshold value (ma), the process moves to step SP610. When the eccentricity (M) is lower than the eccentricity threshold (ma), the water injection process is ended. _{In step SP609, as the eccentricity threshold value (ma), the second eccentricity threshold value (ma 2} ) is used when the eccentric position is located at the lower part of the dehydration barrel 2, and the second eccentricity threshold value (ma 2) is used when the eccentric position is located at the upper part of the dehydration barrel 2 or the center of the height direction. In this case, the third eccentricity threshold (ma ₃ ) is used.

<步骤SP610><Step SP610>

步骤SP610中，中央控制部61以不使脱水桶2的转数上升而维持该转数的状态进行注水处理。之后，移至步骤SP611。In step SP610, the central control unit 61 performs the water filling process without increasing the number of rotations of the dehydration tub 2 and maintaining the number of rotations. After that, it moves to step SP611.

<步骤SP611><Step SP611>

步骤SP611中，中央控制部61判定偏心量(M)是否高于加速阈值(mc)。在偏心量(M)高于加速阈值(mc)的情况下，移至步骤SP610，继续注水过程。在偏心量(M)低于加速阈值(mc)的情况下，结束注水过程。In step SP611, the central control unit 61 determines whether the amount of eccentricity (M) is higher than the acceleration threshold (mc). If the amount of eccentricity (M) is higher than the acceleration threshold (mc), move to step SP610 to continue the water injection process. When the eccentricity (M) is lower than the acceleration threshold (mc), the water injection process is ended.

步骤SP611中，在脱水桶2的转数比共振转数小的状态下，作为加速阈值(mc)，在偏心位置位于脱水桶2的下部的情况下使用第一加速阈值(mc ₁)，在偏心位置位于脱水桶2的上部或高度方向中央部的情况下使用第二加速阈值(mc ₂)。在脱水桶2的转数大于共振转数的情况下使用第三加速阈值(mc ₃)。 In step SP611, when the rotation speed of the dehydration tank 2 is smaller than the resonance rotation speed, the first acceleration threshold value (mc ₁ ) is used when the eccentric position is located at the lower part of the dehydration tank 2 as the acceleration threshold (mc). _{The second acceleration threshold value (mc 2} ) is used when the eccentric position is located at the upper part of the dehydration tub 2 or the middle part in the height direction. _{The third acceleration threshold (mc 3} ) is used in the case where the number of rotations of the dehydration tank 2 is greater than the number of resonance rotations.

(偏心位置高度判定)(Eccentric position height judgment)

基于图24～图25对步骤SP602所示的偏心位置高度的判定方法进行说明。The method of determining the height of the eccentric position shown in step SP602 will be described based on FIGS. 24 to 25.

作为脱水桶2的不平衡状态，如图24所示，可以想到三种不平衡状态。图24的(a)～图24的(c)示出了三种不平衡状态中圆周方向上的偏心位置和高度方向(上下方向)上的偏心位置。As the unbalanced state of the dehydration tank 2, as shown in FIG. 24, three unbalanced states can be conceived. 24(a) to 24(c) show the eccentric position in the circumferential direction and the eccentric position in the height direction (up and down direction) in the three unbalanced states.

不平衡状态a是偏心位置位于脱水桶2的上部的状态，不平衡状态b是偏心位置位于脱水桶2的高度方向中央部的状态，不平衡状态c是偏心位置位于脱水桶2的下部的状态。The unbalanced state a is the state where the eccentric position is located at the upper part of the dehydration tank 2, the unbalanced state b is the state where the eccentric position is located at the center of the dehydration barrel 2 in the height direction, and the unbalanced state c is the state where the eccentric position is located at the lower part of the dehydration barrel 2. .

需要说明的是，脱水桶2的上部是指与脱水桶2的上端相距脱水桶2的高度的1/3的范围，脱水桶2的高度方向中央部是指与脱水桶2的上端相距脱水桶2的高度的1/3～2/3的范围，脱水桶2的下部是指与脱水桶2的上端相距脱水桶2的高度的2/3处的下方的范围(与脱水桶2的下端相距脱水桶2的高度的1/3的范围)。即，从脱水桶2的上端到下端分割出三个相同高度的范围的情况下，从脱水桶2的上端开始分割出脱水桶2的上部、脱水桶2的高度方向中央部、脱水桶2的下部这三个范围。It should be noted that the upper part of the dewatering bucket 2 refers to the range of 1/3 of the height of the dewatering bucket 2 from the upper end of the dewatering bucket 2, and the height direction central part of the dewatering bucket 2 refers to the distance from the upper end of the dewatering bucket 2 to the top of the dewatering bucket. 2 is the range of 1/3 to 2/3 of the height of the dehydration barrel 2. The lower part of the dehydration barrel 2 refers to the range below 2/3 of the height of the dehydration barrel 2 from the upper end of the dehydration barrel 2 (distance from the lower end of the dehydration barrel 2 The range of 1/3 of the height of the dehydration barrel 2). That is, in the case where three ranges of the same height are divided from the upper end to the lower end of the dehydration barrel 2, the upper part of the dehydration barrel 2, the center portion of the dehydration barrel 2 in the height direction, and the upper end of the dehydration barrel 2 are separated from the upper end of the dehydration barrel 2. The lower three ranges.

图25的(a)～图25的(c)分别表示在不平衡状态a、不平衡状态b以及不平衡状态c的任一状态下使脱水桶2的转数发生各种变化的情况下的脱水桶2的上端部的振动的变化。作为脱水桶2的上端部的振动，使用由装配于外桶3的外周面3a的加速度传感器56检测的左右方向、上下方向以及前后方向的加速度数据(MX、MY、MZ)。Figures 25(a) to 25(c) respectively show the case where the number of rotations of the dewatering tank 2 is changed variously in any of the unbalanced state a, the unbalanced state b, and the unbalanced state c. The vibration of the upper end of the dewatering tub 2 changes. As the vibration of the upper end of the dewatering tub 2, acceleration data (MX, MY, MZ) in the left-right direction, the vertical direction, and the front-rear direction detected by the acceleration sensor 56 attached to the outer peripheral surface 3a of the outer tub 3 are used.

如图25的(a)～图25的(c)所示，在不平衡状态a、不平衡状态b以及不平衡状态c的任一状态下，脱水桶2的上端部的左右方向和前后方向的振动的变化大致相同，与此相对，脱水桶2的上端部的上下方向的振动以比左右方向和前后方向的振动小的值发生变化。As shown in Figure 25 (a) to Figure 25 (c), in any of the unbalanced state a, the unbalanced state b, and the unbalanced state c, the left-right direction and the front-rear direction of the upper end of the dewatering tub 2 The change in the vibration of the dehydration tub 2 is substantially the same. In contrast, the vibration in the vertical direction of the upper end of the dehydration tub 2 changes by a value smaller than the vibration in the left-right direction and the front-rear direction.

不平衡状态c下，脱水桶2的上端部的上下方向的振动的大小与左右方向和前后方向的振动的大小相比小得多，与此相对，不平衡状态a和不平衡状态b下，脱水桶2的上端部的上下方向的振动的大小比较接近左右方向和前后方向的振动的大小。In the unbalanced state c, the magnitude of the vertical vibration of the upper end of the dewatering tub 2 is much smaller than the magnitude of the left-right and front-rear vibrations. In contrast, in the unbalanced state a and the unbalanced state b, The magnitude of the vibration in the vertical direction of the upper end of the dehydration tub 2 is relatively close to the magnitude of the vibration in the left-right direction and the front-rear direction.

即，根据图25，将由步骤SP22获取的作为加速度数据的左右方向的加速度MX与前后方向的加速度MZ的平均值设为MXZave，采用上下方向的加速度MY，通过式1计算出系数A。That is, according to FIG. 25, the average value of the acceleration MX in the left-right direction and the acceleration MZ in the front-rear direction acquired in step SP22 as the acceleration data is set to MXZave, and the vertical acceleration MY is used to calculate the coefficient A by Equation 1.

A＝MXZave/MY (式1)A=MXZave/MY (Equation 1)

由此，能在系数A大于2的情况(A＞2)下判定为处于不平衡状态c，在系数A小于2的情况(A＜2)下判定为处于不平衡状态a或不平衡状态b。As a result, it can be determined to be in an unbalanced state c when the coefficient A is greater than 2 (A>2), and it can be determined to be in an unbalanced state a or an unbalanced state b when the coefficient A is less than 2 (A<2) .

在脱水桶2内不存在偏心的情况下，脱水桶2与外桶3同步旋转，因此会从各注水喷嘴30a、30b、30c向各导水槽5a、5b、5c恰当地注入调整水。与此相对，在脱水桶2内存在偏心的情况下，脱水桶2与外桶3不同步旋转，因此存在如下问题：不会从各注水喷嘴30a、30b、30c向各导水槽5a、5b、5c恰当地注入调整水，来自各注水喷嘴30a、30b、30c的调整水会被注水至错误的导水槽5a、5b、5c。该情况下，无法恰当地进行消除脱水桶2的不平衡状态的控制。When there is no eccentricity in the dewatering bucket 2, the dewatering bucket 2 rotates synchronously with the outer bucket 3, and therefore the water injection nozzles 30a, 30b, and 30c will properly inject the adjustment water into the water guide grooves 5a, 5b, and 5c. On the other hand, when there is an eccentricity in the dewatering bucket 2, the dewatering bucket 2 and the outer bucket 3 do not rotate synchronously. Therefore, there is a problem that the water injection nozzles 30a, 30b, and 30c will not go to the water guide grooves 5a, 5b, 5a, 5b, and 5b. 5c properly injects the adjustment water, and the adjustment water from the water injection nozzles 30a, 30b, 30c is injected into the wrong water channel 5a, 5b, 5c. In this case, the control to eliminate the unbalanced state of the dehydration tank 2 cannot be performed appropriately.

尤其是，在脱水桶2内的偏心位置位于脱水桶2的上部或高度方向中央部的情况下，由于脱水桶2的上端部处的加振力，外桶3的上端部的振动变大，喷嘴单元30的注水喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系容易发生变化，容易发生来自各注水喷嘴30a、30b、30c的调整水被注水至错误的导水槽5a、5b、5c的问题。In particular, when the eccentric position in the dehydration barrel 2 is located at the upper part of the dehydration barrel 2 or the center in the height direction, the vibration of the upper end of the outer barrel 3 becomes larger due to the vibration force at the upper end of the dehydration barrel 2, and The positional relationship between the water injection nozzles 30a, 30b, 30c of the nozzle unit 30 and the water guide grooves 5a, 5b, 5c is prone to change, and the adjustment water from the water injection nozzles 30a, 30b, 30c is easily poured into the wrong water guide grooves 5a, 5b. , 5c problem.

如图25的(a)～图25的(c)所示，当脱水桶2内的偏心位置在高度方向上不同时，脱水桶2的振动状态不同。因此，本实施方式中，考虑脱水桶2的振动状态即脱水桶2的不平衡状态来实施喷嘴单元30的控制方法。As shown in FIGS. 25(a) to 25(c), when the eccentric position in the dehydration tub 2 is different in the height direction, the vibration state of the dehydration tub 2 is different. Therefore, in this embodiment, the control method of the nozzle unit 30 is implemented in consideration of the vibration state of the dehydration tub 2, that is, the unbalanced state of the dehydration tub 2.

本实施方式中，加速度传感器56是能检测左右方向、上下方向以及前后方向的加速度的三轴传感器。由此，如图25的(a)～图25的(c)所示，即使处于脱水桶2内的偏心位置在高度方向上不同的状态，也能准确地检测偏心量(M) 和偏心位置(N)。In the present embodiment, the acceleration sensor 56 is a three-axis sensor capable of detecting acceleration in the left-right direction, the vertical direction, and the front-rear direction. As a result, as shown in FIGS. 25(a) to 25(c), even when the eccentric position in the dehydration tub 2 is different in the height direction, the eccentric amount (M) and the eccentric position can be accurately detected (N).

本实施方式的洗衣机1具备：脱水桶2，配置于外桶3内，底部2c配置有波轮4；三个作为通水管部的折流板8，沿周向等间隔地配置于脱水桶2的内周面2a，并且在底部2c附近开口且在上端部形成有循环水口80；接水环单元5，由分别与折流板8的上端部连接的三个环状的导水槽5a、5b、5c彼此在径向上重叠而成；喷嘴单元30，固定于脱水桶2的上端部，能独立地向各导水槽5a、5b、5c注入调整水；作为加速度检测部的加速度传感器56，检测外桶3的振动；作为位置检测装置的接近开关55，根据脱水桶2的旋转而发送脉冲信号；作为偏心检测部的不平衡量检测部65和不平衡位置检测部66，检测脱水桶2内的偏心量和偏心位置；以及控制部60，在脱水过程中，当偏心量达到规定的偏心量阈值(ma)时，控制喷嘴单元30向与偏心位置对应的折流板8注水，控制部60对喷嘴单元30进行根据由不平衡量检测部65和不平衡位置检测部66检测到的偏心位置位于脱水桶2的上部或高度方向中央部的情况和位于脱水桶2的下部的情况而不同的控制。The washing machine 1 of this embodiment includes: a dewatering tub 2 arranged in the outer tub 3, a bottom 2c is provided with a pulsator 4; three baffles 8 as water-passing pipe portions are arranged in the dewatering tub 2 at equal intervals in the circumferential direction The inner peripheral surface 2a of the bottom part 2c is opened near the bottom 2c and a circulating water port 80 is formed at the upper end; the water receiving ring unit 5 is composed of three annular water guide grooves 5a, 5b connected to the upper end of the baffle 8 respectively , 5c overlap each other in the radial direction; the nozzle unit 30, fixed to the upper end of the dehydration bucket 2, can independently inject adjustment water into the water guide grooves 5a, 5b, 5c; the acceleration sensor 56 as the acceleration detection unit detects the outside The vibration of the barrel 3; the proximity switch 55 as a position detection device sends a pulse signal according to the rotation of the dehydration barrel 2; the unbalance amount detection unit 65 and the unbalance position detection unit 66 as the eccentricity detection unit detect the eccentricity in the dehydration barrel 2 And the eccentric position; and the control unit 60, in the dehydration process, when the eccentricity reaches a predetermined eccentricity threshold (ma), the nozzle unit 30 is controlled to inject water into the baffle 8 corresponding to the eccentric position, and the control unit 60 sprays the nozzle The unit 30 performs different controls depending on the situation where the eccentric position detected by the unbalance amount detection unit 65 and the unbalance position detection unit 66 is located at the upper part or the center part of the height direction of the dewatering tub 2 and where it is located at the lower part of the dewatering tub 2.

根据本实施方式的洗衣机1，可以想到分别在脱水桶2内的偏心位置位于脱水桶2的上部或高度方向中央部的情况下和偏心位置位于脱水桶2的下部的情况下喷嘴单元30的喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系容易发生变化的运转状态，但通过进行因脱水桶2内的偏心位置而异的控制，会抑制喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系发生变化。由此，能防止来自喷嘴单元30的调整水被注水至错误的导水槽5a、5b、5c，恰当地进行消除脱水桶2的不平衡状态的控制。According to the washing machine 1 of this embodiment, the nozzles of the nozzle unit 30 can be conceived when the eccentric position in the dehydration tub 2 is located at the upper part of the dehydration tub 2 or the center in the height direction, and when the eccentric position is located at the lower part of the dehydration tub 2 The positional relationship between 30a, 30b, 30c and the water channel 5a, 5b, 5c is likely to change in the operating state, but by controlling the eccentric position in the dewatering tank 2, the nozzles 30a, 30b, 30c and the water channel are suppressed. The positional relationship of 5a, 5b, and 5c has changed. As a result, it is possible to prevent the adjustment water from the nozzle unit 30 from being poured into the wrong water guide grooves 5a, 5b, and 5c, and control to eliminate the unbalanced state of the dehydration tub 2 can be performed appropriately.

本实施方式的洗衣机1中，控制部60在脱水过程中开始控制喷嘴单元30向作为通水管部的折流板8注水之后，在由作为偏心检测部的不平衡量检测部65和不平衡位置检测部66检测到的偏心量变为规定的加速阈值(mc)以下的情况下控制喷嘴单元30停止向折流板8注水，偏心位置位于脱水桶2的上部或高度方向中央部的情况的第二加速阈值(mc ₂)比偏心位置位于脱水桶2的下部的情况的第一加速阈值(mc ₁)小。 In the washing machine 1 of the present embodiment, the control unit 60 starts to control the nozzle unit 30 to inject water into the baffle 8 as the water-passing pipe portion during the spin-drying process, and then the unbalance amount detection unit 65 and the unbalance position detection unit 65 as the eccentricity detection unit When the amount of eccentricity detected by the section 66 becomes less than the predetermined acceleration threshold (mc), the nozzle unit 30 is controlled to stop the injection of water into the baffle 8 and the eccentric position is located at the upper part of the dehydration barrel 2 or the second acceleration in the middle part in the height direction. The threshold value (mc ₂ _{) is smaller than the first acceleration threshold value (mc 1} ) in the case where the eccentric position is located in the lower part of the dehydration tub 2.

根据本实施方式的洗衣机1，在脱水过程的脱水桶2的转数小于共振转数的状态下，在偏心位置位于脱水桶2的下部的情况下，当注水量过多时，在脱水桶2的转数上升而变得大于共振转数之后，可能会成为对置偏心状态而振动变大，但由于第一加速阈值(m _Cl)被设定为较大的值，因此在开始向折流板8注水之后，在注水量还没变得过多的时候停止向折流板8注水以迅速结束注水。由此，能抑制喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系发生变化，防止来自喷嘴单元30的调整水被注水至错误的导水槽5a、5b、5c。 According to the washing machine 1 of this embodiment, in the state where the rotation speed of the dehydration tub 2 during the dehydration process is less than the resonance rotation number, and the eccentric position is located at the lower part of the dehydration tub 2, when the amount of water is too much, the rotation of the dehydration tub 2 After the number of revolutions rises and becomes greater than the number of resonance revolutions, it may become an opposed eccentric state and the vibration will increase. However, since the first acceleration threshold (m _Cl ) is set to a large value, it starts to move toward the baffle 8 After the water injection, the water injection to the baffle 8 is stopped when the water injection amount has not become too much to quickly end the water injection. Thereby, it is possible to suppress changes in the positional relationship between the nozzles 30a, 30b, and 30c and the water guide grooves 5a, 5b, 5c, and prevent the adjustment water from the nozzle unit 30 from being poured into the wrong water guide grooves 5a, 5b, 5c.

本实施方式的洗衣机1中，在脱水桶2的转数大于共振转数的状态下，偏心位置位于脱水桶的上部或高度方向中央部的情况的第三偏心量阈值(ma ₃)比偏心位置位于脱水桶2的下部的情况的第二偏心量阈值(ma ₂)小。 _{In the washing machine 1 of this embodiment, the third eccentricity threshold value (ma 3} ) is greater than the eccentric position when the eccentric position is located at the upper part of the dehydration drum or the center in the height direction when the rotation speed of the dehydration tub 2 is greater than the resonance rotation speed. _{The second eccentricity threshold value (ma 2} ) is small in the case where it is located in the lower part of the dehydration tub 2.

根据本实施方式的洗衣机1，虽然在偏心位置位于脱水桶2的上部或高度方向中央部的情况下喷嘴单元30的喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系容易发生变化，但由于第三偏心量阈值(ma ₃)被设定为较小，因此能在喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系不易发生变化的早期阶段开始注水处理。由此，能抑制喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系发生变化，防止来自喷嘴单元的调整水被注水至错误的导水槽5a、5b、5c。 According to the washing machine 1 of this embodiment, the positional relationship between the nozzles 30a, 30b, 30c of the nozzle unit 30 and the water guide grooves 5a, 5b, 5c is likely to change when the eccentric position is located at the upper part of the dehydration tub 2 or the center in the height direction. However, since the third eccentricity threshold value (ma ₃ ) is set to be small, the water injection process can be started at an early stage when the positional relationship between the nozzles 30a, 30b, 30c and the water guide grooves 5a, 5b, 5c is not easily changed. Thereby, the positional relationship of the nozzles 30a, 30b, 30c and the water guide grooves 5a, 5b, 5c can be suppressed from changing, and the adjustment water from the nozzle unit can be prevented from being poured into the wrong water guide grooves 5a, 5b, 5c.

本实施方式的洗衣机1中，控制部60在脱水过程中仅在脱水桶2的转数为规定的可注水上限转数(Na)以下的情况下控制喷嘴单元30向与偏心位置对应的作为通水管部的折流板8注水，偏心位置位于脱水桶2的上部或高度方向中央部的情况的第二可注水上限转数(Na ₂)比偏心位置位于脱水桶2的下部的情况的第一可注水上限转数(Na ₁)。 In the washing machine 1 of the present embodiment, the control unit 60 controls the nozzle unit 30 to switch the nozzle unit 30 to the position corresponding to the eccentric position only when the number of rotations of the dehydration tub 2 is less than the predetermined upper limit number of rotations (Na) that can be filled during the dehydration process. The baffle 8 of the water pipe part is filled with water and the eccentric position is located at the upper part of the dehydration tank 2 or the middle part of the height direction. The second maximum number of revolutions (Na ₂ ) that can be poured is higher than the first case where the eccentric position is located at the lower part of the dehydration tank 2. The maximum number of revolutions that can be injected (Na ₁ ).

根据本实施方式的洗衣机1，虽然在偏心位置位于脱水桶2的上部或高度方向中央部的情况下，在脱水桶2的转数变高而接近外桶3的共振转数时，外桶3会共振而大幅振动，由此喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系容易发生变化，但由于可注水上限转数被设定为较小，因此会在脱水桶2的转数尚未接近外桶3的共振转数的低转数阶段停止向折流板8注水。由此，能抑制喷嘴30a、30b、30c与导水槽5a、5b、5c的位置关系发生变化，防止来自喷嘴单元30的调整水被注水至错误的导水槽5a、5b、5c。According to the washing machine 1 of the present embodiment, although the eccentric position is located in the upper part of the dehydration tub 2 or the center in the height direction, when the rotation speed of the dehydration tub 2 becomes high and approaches the resonance rotation speed of the outer tub 3, the outer tub 3 The positional relationship between the nozzles 30a, 30b, 30c and the water guide grooves 5a, 5b, 5c is likely to change due to resonance and large vibrations. However, since the upper limit of the number of rotations that can be poured is set to be small, it will The water injection into the baffle 8 is stopped at the low rotation speed stage where the rotation speed has not yet approached the resonance rotation speed of the outer tub 3. Thereby, it is possible to suppress changes in the positional relationship between the nozzles 30a, 30b, and 30c and the water guide grooves 5a, 5b, 5c, and prevent the adjustment water from the nozzle unit 30 from being poured into the wrong water guide grooves 5a, 5b, 5c.

本实施方式的洗衣机1中，在向作为通水管部的折流板8的可注水的注水限制量根据脱水桶2的转数而发生变化的情况下，控制部60在脱水过程中控制喷嘴单元30使得向折流板8的注水量不超过与脱水桶2的转数相应的注水限制量。In the washing machine 1 of the present embodiment, in the case where the limit amount of water that can be poured into the baffle 8 as the water-passing pipe portion changes according to the number of rotations of the dehydration tub 2, the control unit 60 controls the nozzle unit during the dehydration process. 30 is such that the amount of water injected into the baffle 8 does not exceed the limit amount of water injection corresponding to the number of rotations of the dewatering bucket 2.

根据本实施方式的洗衣机1，在脱水过程中控制喷嘴单元30使得向折流板8的注水量不超过与脱水桶2的转数相应的注水限制量，能防止从喷嘴单元30超过注水限制量地注入调整水而浪费调整水。According to the washing machine 1 of this embodiment, the nozzle unit 30 is controlled during the dehydration process so that the amount of water injected into the baffle 8 does not exceed the limit amount of water injection corresponding to the number of rotations of the dehydration tub 2, which can prevent the nozzle unit 30 from exceeding the limit amount of water injection The adjustment water is poured into the ground and the adjustment water is wasted.

(脱水过程)(Dehydration process)

以下，基于图26和图27对本实施方式的洗衣机1的脱水过程的控制的变形例进行说明。图26和图27是表示脱水过程的变形例的流程的流程图。Hereinafter, a modification example of the control of the spin-drying process of the washing machine 1 of the present embodiment will be described based on FIGS. 26 and 27. 26 and 27 are flowcharts showing the flow of a modified example of the dehydration process.

<步骤SP101><Step SP101>

步骤SP101中，中央控制部61使脱水桶2的转数上升，起动脱水过程。In step SP101, the central control unit 61 increases the number of rotations of the dehydration tub 2 to start the dehydration process.

<步骤SP102><Step SP102>

步骤SP102中，中央控制部61判定脱水桶2的转数是否为150rpm以上。中央控制部61在转数为150rpm以上的情况下移至步骤SP103。In step SP102, the central control unit 61 determines whether the number of rotations of the dehydration tub 2 is 150 rpm or more. When the number of revolutions is 150 rpm or more, the central control unit 61 moves to step SP103.

<步骤SP103><Step SP103>

步骤SP103中，中央控制部61测量脱水桶2的偏心量(M)和偏心位置(N)。之后，移至步骤SP104。In step SP103, the central control unit 61 measures the eccentricity (M) and the eccentric position (N) of the dehydration tub 2. After that, it moves to step SP104.

<步骤SP104><Step SP104>

步骤SP104中，中央控制部61判定偏心量(M)是否为偏心量阈值(ma)以上。在偏心量(M)高于偏心量阈值(ma)的情况下，移至步骤SP105。在偏心量(M)低于偏心量阈值(ma)的情况下，移至步骤SP115。步骤SP104中，作为偏心量阈值(ma)，使用第一偏心量阈值(ma1)。In step SP104, the central control unit 61 determines whether the eccentricity amount (M) is equal to or greater than the eccentricity amount threshold value (ma). When the eccentricity amount (M) is higher than the eccentricity amount threshold value (ma), it moves to step SP105. When the eccentricity amount (M) is lower than the eccentricity amount threshold value (ma), the process moves to step SP115. In step SP104, as the eccentricity threshold (ma), the first eccentricity threshold (ma1) is used.

<步骤SP105><Step SP105>

步骤SP105中，中央控制部61判定偏心位置(N)是否位于脱水桶2的中上部(偏心位置高度判定)。具体而言，中央控制部61判定偏心位置(N)是位于脱水桶2的上部或高度方向中央部还是位于脱水桶2的下部的哪处。偏心位置高度的判定方法与上述相同。在偏心位置(N)位于脱水桶2的中上部的情况下，移至步骤SP106。在偏心位置(N)位于脱水桶2的下部的情况下，移至步骤SP107。In step SP105, the central control unit 61 determines whether the eccentric position (N) is located in the upper middle part of the dehydration tub 2 (the eccentric position height determination). Specifically, the central control unit 61 determines whether the eccentric position (N) is located at the upper part of the dehydration tub 2 or the center in the height direction or at the lower part of the dehydration tub 2. The method of determining the height of the eccentric position is the same as described above. In the case where the eccentric position (N) is located in the upper middle part of the dehydration tub 2, the process moves to step SP106. In the case where the eccentric position (N) is located at the lower part of the dehydration tub 2, it moves to step SP107.

<步骤SP106><Step SP106>

步骤SP106中，中央控制部61将加速阈值(mc)确定为第二加速阈值(mc ₂)。之后，移至步骤SP108。 In step SP106, the central control unit 61 determines the acceleration threshold (mc) as the second acceleration threshold (mc ₂ ). After that, it moves to step SP108.

<步骤SP107><Step SP107>

步骤SP107中，中央控制部61将加速阈值(mc)确定为第一加速阈值(mc ₁)。之后，移至步骤SP108。 In step SP107, the central control unit 61 determines the acceleration threshold (mc) as the first acceleration threshold (mc ₁ ). After that, it moves to step SP108.

<步骤SP108><Step SP108>

步骤SP108中，中央控制部61开始注水处理。之后，移至步骤SP109。In step SP108, the central control unit 61 starts the water injection process. After that, it moves to step SP109.

<步骤SP109><Step SP109>

步骤SP109中，中央控制部61按脱水桶2的转数来确定注水限制量。In step SP109, the central control unit 61 determines the water injection restriction amount according to the number of rotations of the dehydration tub 2.

<步骤SP110><Step SP110>

步骤SP110中，中央控制部61判定偏心量(M)是否高于加速阈值(mc)。在偏心量(M)高于加速阈值(mc)的情况下，移至步骤SP111。在偏心量(M)低于加速阈值(mc)的情况下，移至步骤SP115。步骤SP110中，作为加速阈值(mc)，在偏心位置(N)位于脱水桶2的中上部的情况下使用第二加速阈值(mc ₂)，在偏心位置(N)位于脱水桶2的下部的情况下使用第一加速阈值(mc ₁)。 In step SP110, the central control unit 61 determines whether the amount of eccentricity (M) is higher than the acceleration threshold (mc). If the eccentricity (M) is higher than the acceleration threshold (mc), the process moves to step SP111. If the amount of eccentricity (M) is lower than the acceleration threshold (mc), the process moves to step SP115. _{In step SP110, as the acceleration threshold (mc), the second acceleration threshold (mc 2} ) is used when the eccentric position (N) is located in the upper middle of the dehydration barrel 2, and the second acceleration threshold (mc 2) is used at the eccentric position (N) at the lower portion of the dehydration barrel 2. In this case, the first acceleration threshold (mc ₁ ) is used.

<步骤SP111><Step SP111>

步骤SP111中，中央控制部61判定注水量是否为注水限制量以下。在注水量为注水限制量以下的情况下，移至步骤SP112。在注水量不为注水限制量以下的情况下，移至步骤SP113。In step SP111, the central control unit 61 determines whether or not the water injection amount is equal to or less than the water injection restriction amount. When the water injection amount is less than or equal to the water injection restriction amount, the process moves to step SP112. When the water injection amount is not equal to or less than the water injection restriction amount, the process moves to step SP113.

<步骤SP112><Step SP112>

步骤SP112中，中央控制部61继续注水处理，移至步骤SP109。In step SP112, the central control unit 61 continues the water filling process, and moves to step SP109.

<步骤SP113><Step SP113>

步骤SP113中，中央控制部61判定偏心量(M)是否高于加速阈值(mc)。在偏心量(M)高于加速阈值(mc)的情况下，移至步骤SP114。在偏心量(M) 低于加速阈值(mc)的情况下，移至步骤SP115。步骤SP113中，作为加速阈值(mc)，在偏心位置(N)位于脱水桶2的中上部的情况下，使用比第二加速阈值(mc ₂)大的第五加速阈值(mc ₅＝mc ₂+α ₂)，在偏心位置(N)位于脱水桶2的下部的情况下，使用第一加速阈值(mc ₄＝mc ₁+α ₁)。需要说明的是，α ₁和α ₂是适当设定的正数。 In step SP113, the central control unit 61 determines whether the amount of eccentricity (M) is higher than the acceleration threshold (mc). If the amount of eccentricity (M) is higher than the acceleration threshold (mc), the process moves to step SP114. If the eccentricity (M) is lower than the acceleration threshold (mc), the process moves to step SP115. In step SP113, as the acceleration threshold (mc), in the case where the eccentric position (N) is located in the upper middle part of the dehydration tank 2, a fifth acceleration threshold (mc ₅ =mc ₂ _{) that is larger than the second acceleration threshold (mc 2) is used.} +α ₂ ). In the case where the eccentric position (N) is located in the lower part of the dehydration tank 2, the first acceleration threshold value (mc ₄ =mc ₁ +α ₁ ) is used. It should be noted that α ₁ and α ₂ are appropriately set positive numbers.

<步骤SP114><Step SP114>

步骤SP114中，中央控制部61停止脱水桶2的旋转，结束脱水过程。之后，移至步骤SP115。In step SP114, the central control unit 61 stops the rotation of the dehydration tub 2 and ends the dehydration process. After that, it moves to step SP115.

<步骤SP115><Step SP115>

步骤SP115中，中央控制部61使脱水桶2的旋转上升，移至步骤SP116。In step SP115, the central control unit 61 raises the rotation of the dehydration tub 2 and moves to step SP116.

<步骤SP116><Step SP116>

步骤SP116中，中央控制部61判定脱水桶2的转数是否为300rpm以上。中央控制部61在脱水桶2的转数为300rpm以上的情况下移至步骤SP117。在脱水桶2的转数不为300rpm以上的情况下，移至步骤SP104。In step SP116, the central control unit 61 determines whether or not the number of rotations of the dehydration tub 2 is 300 rpm or more. The central control unit 61 moves to step SP117 when the number of rotations of the dehydration tub 2 is 300 rpm or more. When the rotation speed of the dehydration tub 2 is not 300 rpm or more, it moves to step SP104.

<步骤SP117><Step SP117>

步骤SP117中，中央控制部61将加速阈值(mc)确定为第三加速阈值(mc ₃)。之后，移至步骤SP118。 In step SP117, the central control section 61 determines the acceleration threshold (mc) as the third acceleration threshold (mc ₃ ). After that, it moves to step SP118.

<步骤SP118><Step SP118>

步骤SP118中，中央控制部61使脱水桶2的旋转上升，移至步骤SP119。In step SP118, the central control unit 61 raises the rotation of the dehydration tub 2 and moves to step SP119.

<步骤SP119><Step SP119>

步骤SP119中，中央控制部61判定偏心位置(N)是否位于脱水桶2的中上部(偏心位置高度判定)。在偏心位置(N)位于脱水桶2的中上部的情况下，移至步骤SP120。在偏心位置(N)位于脱水桶2的下部的情况下，移至步骤SP122。In step SP119, the central control unit 61 determines whether or not the eccentric position (N) is located in the upper middle part of the dehydration tub 2 (the eccentric position height determination). In the case where the eccentric position (N) is located in the upper middle part of the dehydration tank 2, it moves to step SP120. In the case where the eccentric position (N) is located in the lower part of the dehydration tub 2, it moves to step SP122.

<步骤SP120><Step SP120>

步骤SP120中，中央控制部61将可注水上限转数(Na)确定为第二可注水上限转数(Na ₂)，移至步骤SP121。 In step SP120, the central control unit 61 determines the upper limit of revolutions (Na) that can be filled with water as the second upper limit of revolutions (Na ₂ ) that can be filled with water, and moves to step SP121.

<步骤SP121><Step SP121>

步骤SP121中，中央控制部61将偏心量阈值(ma)确定为第三偏心量阈值(ma ₃)，移至步骤SP124。 In step SP121, the central control unit 61 determines the eccentricity amount threshold value (ma) as the third eccentricity amount threshold value (ma ₃ ), and moves to step SP124.

<步骤SP122><Step SP122>

步骤SP122中，中央控制部61将可注水上限转数(Na)确定为第一可注水上限转数(Na ₁)，移至步骤SP123。 In step SP122, the central control unit 61 determines the upper limit of revolutions (Na) that can be filled with water as the first upper limit of revolutions (Na ₁ ) that can be filled, and moves to step SP123.

<步骤SP123><Step SP123>

步骤SP123中，中央控制部61将偏心量阈值(ma)确定为第二偏心量阈值(ma ₂)，移至步骤SP124。 In step SP123, the central control unit 61 determines the eccentricity amount threshold value (ma) as the second eccentricity amount threshold value (ma ₂ ), and moves to step SP124.

<步骤SP124><Step SP124>

步骤SP124中，中央控制部61判定脱水桶2的转数是否为可注水上限转数(Na)以下。在脱水桶2的转数为可注水上限转数(Na)以下的情况下可实施注水，移至步骤SP125。当脱水桶2的转数高于可注水上限转数(Na)时，不可实施注水，结束注水过程。步骤SP124中，作为可注水上限转数(Na)，在偏心位置(N)位于脱水桶2的中上部的情况下使用第二可注水上限转数(Na ₂)，在偏心位置(N)位于脱水桶2的下部的情况下使用第一可注水上限转数(Na ₁)。 In step SP124, the central control unit 61 determines whether or not the number of rotations of the dewatering tub 2 is less than or equal to the upper limit number of rotations (Na) that can be filled with water. When the rotation number of the dewatering tank 2 is less than the upper limit rotation number (Na) that can be injected, water injection can be performed, and the process moves to step SP125. When the number of rotations of the dewatering bucket 2 is higher than the upper limit number of rotations (Na) that can be injected, water injection cannot be performed, and the water injection process ends. In step SP124, as the upper limit of water injection (Na), the second upper limit of water injection (Na ₂ ) is used when the eccentric position (N) is located in the middle and upper part of the dewatering barrel 2, and the second upper limit of water injection (Na 2) is used at the eccentric position (N). In the case of the lower part of the dewatering tank 2, the first maximum number of revolutions (Na ₁ ) that can be filled with water is used.

<步骤SP125><Step SP125>

步骤SP125中，中央控制部61判定偏心量(M)是否高于偏心量阈值(ma)。在偏心量(M)高于偏心量阈值(ma)的情况下，移至步骤SP126。在偏心量(M)低于偏心量阈值(ma)的情况下，结束注水过程。步骤SP125中，作为偏心量阈值(ma)，在偏心位置(N)位于脱水桶2的中上部的情况下使用第三偏心量阈值(ma ₃)，在偏心位置(N)位于脱水桶2的下部的情况下使用第二偏心量阈值(ma ₂)。 In step SP125, the central control unit 61 determines whether the eccentricity amount (M) is higher than the eccentricity amount threshold value (ma). When the eccentricity amount (M) is higher than the eccentricity amount threshold value (ma), it moves to step SP126. When the eccentricity (M) is lower than the eccentricity threshold (ma), the water injection process is ended. _{In step SP125, as the eccentricity threshold value (ma), the third eccentricity threshold value (ma 3} ) is used when the eccentric position (N) is located in the upper middle part of the dehydration tank 2, and the third eccentricity threshold value (ma 3) is used at the eccentric position (N). In the case of the lower part, the second eccentricity threshold value (ma ₂ ) is used.

<步骤SP126><Step SP126>

步骤SP126中，中央控制部61以不使脱水桶2的转数上升而维持该转数的状态进行注水处理。之后，移至步骤SP127。In step SP126, the central control unit 61 performs the water filling process in a state where the number of revolutions of the dehydration tub 2 is not increased and the number of revolutions is maintained. After that, it moves to step SP127.

<步骤SP127><Step SP127>

步骤SP127中，中央控制部61判定偏心量(M)是否高于加速阈值(mc)。在偏心量(M)高于加速阈值(mc)的情况下，移至步骤SP126，继续注水过程。在偏心量(M)低于加速阈值(mc)的情况下，结束注水过程。步骤SP127中，作为加速阈值(mc)，使用第三加速阈值(mc ₃)。 In step SP127, the central control unit 61 determines whether the amount of eccentricity (M) is higher than the acceleration threshold (mc). When the eccentricity (M) is higher than the acceleration threshold (mc), move to step SP126 to continue the water injection process. When the eccentricity (M) is lower than the acceleration threshold (mc), the water injection process is ended. In step SP127, as the acceleration threshold (mc), the third acceleration threshold (mc ₃ ) is used.

以上，对本发明的实施方式进行了说明，但本实施方式的结构不限于上述方案，可以进行各种变形。As mentioned above, the embodiment of the present invention has been described, but the structure of the present embodiment is not limited to the above-mentioned one, and various modifications can be made.

例如，上述实施方式中，接水环单元5由三个导水槽5a、5b、5c构成，与此相应地形成有三个折流板8，但不限于此，只要是设有三个以上折流板8并且导水槽设为与折流板8数量相同的结构即可。For example, in the above embodiment, the water receiving ring unit 5 is composed of three water guide grooves 5a, 5b, 5c, and three baffles 8 are formed accordingly, but it is not limited to this, as long as three or more baffles are provided 8 and the water guide trough can have the same structure as the number of baffles 8.

上述实施方式中，在脱水桶2的转数大于共振转数的状态下，无论脱水桶2内的偏心位置如何，都设定相同的加速阈值，在脱水桶2的转数大于共振转数的状态下，根据偏心位置位于脱水桶2的上部或高度方向中央部的情况和偏心位置位于脱水桶2的下部的情况设定不同的加速阈值。In the above embodiment, in the state where the rotation speed of the dehydration tank 2 is greater than the resonance rotation speed, the same acceleration threshold is set regardless of the eccentric position in the dehydration tank 2, and the rotation speed of the dehydration tank 2 is greater than the resonance rotation speed. In the state, different acceleration thresholds are set according to the situation where the eccentric position is located in the upper part of the dehydration tub 2 or the center in the height direction and the situation where the eccentric position is located in the lower part of the dehydration tub 2.

上述本实施方式中，在脱水桶2的转数小于共振转数的状态下，无论脱水桶2内的偏心位置如何，都设定相同的偏心量阈值，在脱水桶2的转数小于共振转数的状态下，根据偏心位置位于脱水桶2的上部或高度方向中央部的情况和偏心位置位于脱水桶2的下部的情况设定不同的偏心量阈值。In the above embodiment, in the state where the rotation speed of the dehydration tank 2 is less than the resonance rotation speed, the same eccentricity threshold value is set regardless of the eccentric position in the dehydration tank 2, and the rotation speed of the dehydration tank 2 is less than the resonance rotation speed. In the state of counting, different eccentricity thresholds are set according to the situation where the eccentric position is located in the upper part of the dehydration tub 2 or the center in the height direction and the situation where the eccentric position is located in the lower part of the dehydration tub 2.

上述实施方式中，在脱水桶2的转数小于共振转数的状态下，脱水桶2内的偏心位置位于脱水桶2的上部的情况的加速阈值与位于脱水桶2的高度方向中央部的情况的加速阈值相同，但它们也可以不同。In the above embodiment, in the state where the rotation speed of the dehydration tank 2 is less than the resonance rotation speed, the acceleration threshold value in the case where the eccentric position in the dehydration tank 2 is located at the upper part of the dehydration tank 2 is different from the case where it is located in the center of the height direction of the dehydration tank 2 The acceleration thresholds are the same, but they can also be different.

上述实施方式中，在脱水桶2的转数大于共振转数的状态下，脱水桶2内的偏心位置位于脱水桶2的上部的情况的偏心量阈值与位于脱水桶2的高度方向中央部的情况的偏心量阈值相同，但它们也可以不同。In the above embodiment, when the rotation speed of the dehydration tank 2 is greater than the number of resonance rotations, the eccentric position in the dehydration tank 2 is located at the upper part of the dehydration tank 2 and the eccentricity threshold is compared with the threshold value of the eccentricity located at the center of the dehydration tank 2 in the height direction The eccentricity thresholds of the situation are the same, but they can also be different.

上述实施方式中，脱水桶2内的偏心位置位于脱水桶2的上部的情况的可注水上限转数与位于脱水桶2的高度方向中央部的情况的可注水上限转数相同，但它们也可以不同。In the above-mentioned embodiment, the upper limit revolutions that can be poured when the eccentric position in the dehydration tub 2 is located at the upper part of the dehydration tub 2 is the same as the upper limit revolutions that can be poured when it is located at the center of the height direction of the dehydration tub 2, but they may also different.

上述实施方式中，在折流板8内配置有接水板85，注水限制量受接水板85 的长度和位置限制，但不限于此。折流板8的注水限制量也可以不受限制。In the above-mentioned embodiment, the water receiving plate 85 is arranged in the baffle 8, and the water injection restriction amount is limited by the length and position of the water receiving plate 85, but it is not limited to this. The water injection restriction amount of the baffle 8 may not be restricted.

上述实施方式中，加速阈值、可注水上限转数以及偏心量阈值根据脱水桶2内的偏心位置位于脱水桶2的上部或高度方向中央部的情况和位于脱水桶2的下部的情况而不同，但加速阈值、可注水上限转数以及偏心量阈值的至少之一也可以不同。此外，通过喷嘴单元进行注水控制时所使用的加速阈值、可注水上限转数以及偏心量阈值以外的阈值可以根据偏心位置位于脱水桶的上部或高度方向中央部的情况和位于脱水桶的下部的情况而异。In the above embodiment, the acceleration threshold, the maximum number of revolutions that can be filled with water, and the eccentricity threshold are different depending on the case where the eccentric position in the dehydration tank 2 is located at the upper part of the dehydration tank 2 or the center in the height direction and the case at the lower part of the dehydration tank 2. However, at least one of the acceleration threshold, the maximum number of revolutions that can be filled with water, and the eccentricity threshold may be different. In addition, thresholds other than the acceleration threshold, the maximum number of revolutions that can be injected, and the eccentric amount threshold used when the water injection control is performed by the nozzle unit can be based on the eccentric position located in the upper part of the dehydration tank or the center of the height direction and the lower part of the dehydration tank. Circumstances vary.

其他结构也可以在不脱离本发明的技术精神的范围内进行各种变形。Other structures can also be modified in various ways without departing from the technical spirit of the present invention.

Claims

一种洗衣机，其特征在于，具备：A washing machine, characterized in that it has:

脱水桶，配置于外桶内，底部配置有波轮；The dehydration barrel is arranged in the outer barrel, and the bottom is equipped with a pulsator;

三个以上的通水管部，沿周向等间隔地配置于所述脱水桶的内周面，并且在所述底部附近开口且在上端部形成有循环水口；Three or more water-passing pipe parts are arranged on the inner peripheral surface of the dehydration barrel at equal intervals in the circumferential direction, and are open near the bottom and have a circulating water port at the upper end;

接水环单元，固定于所述脱水桶的上端部，由分别与所述通水管部的上端部连接的三个以上的环状的导水槽彼此在径向上重叠而成；The water receiving ring unit is fixed to the upper end of the dehydration barrel and is formed by overlapping three or more annular water channels connected to the upper end of the water pipe part in the radial direction;

喷嘴单元，固定于所述外桶的上端部，能独立地向各导水槽注入调整水；The nozzle unit is fixed to the upper end of the outer barrel, and can independently inject adjustment water into each water channel;

加速度检测部，检测所述外桶的振动；An acceleration detection unit, which detects the vibration of the outer barrel;

位置检测装置，根据所述脱水桶的旋转而发送脉冲信号；A position detection device that sends a pulse signal according to the rotation of the dehydration barrel;

偏心检测部，检测所述脱水桶内的偏心量和偏心位置；以及An eccentricity detection unit, which detects the amount of eccentricity and the position of the eccentricity in the dehydration barrel; and

控制部，在脱水过程中，当偏心量达到规定的偏心量阈值时，控制所述喷嘴单元向与偏心位置对应的所述通水管部注水，The control unit controls the nozzle unit to inject water into the water pipe corresponding to the eccentric position when the eccentricity reaches a predetermined eccentricity threshold during the dehydration process,

所述控制部对所述喷嘴单元进行根据由所述偏心检测部检测到的所述偏心位置位于所述脱水桶的上部或高度方向中央部的情况和位于所述脱水桶的下部的情况而不同的控制。The control section performs different operations on the nozzle unit according to the situation that the eccentric position detected by the eccentricity detection section is located at the upper part of the dewatering tub or the center portion in the height direction and the condition where the dewatering tub is located at the bottom of the dewatering tub control.
根据权利要求1所述的洗衣机，其特征在于，The washing machine according to claim 1, wherein:

在脱水过程中开始控制所述喷嘴单元向所述通水管部注水之后，在由所述偏心检测部检测到的所述偏心量变为规定的加速阈值以下的情况下，所述控制部控制所述喷嘴单元停止向所述通水管部注水，After starting to control the nozzle unit to inject water into the water-passing pipe part during dehydration, if the amount of eccentricity detected by the eccentricity detecting part becomes below a predetermined acceleration threshold value, the control part controls the The nozzle unit stops pouring water into the water-passing pipe part,

所述偏心位置位于所述脱水桶的上部或高度方向中央部的情况下的所述加速阈值比所述偏心位置位于所述脱水桶的下部的情况下的所述加速阈值小。The acceleration threshold value in the case where the eccentric position is located in the upper part of the dehydration tub or the center in the height direction is smaller than the acceleration threshold value in the case where the eccentric position is located in the lower portion of the dehydration tub.
根据权利要求1或2所述的洗衣机，其特征在于，The washing machine according to claim 1 or 2, characterized in that:

所述偏心位置位于所述脱水桶的上部或高度方向中央部的情况下的所述偏心量阈值比所述偏心位置位于所述脱水桶的下部的情况下的所述偏心量阈值小。The eccentricity threshold value in the case where the eccentric position is located at the upper part of the dehydration tub or the center in the height direction is smaller than the eccentricity threshold value when the eccentric position is located at the lower part of the dehydration tub.
根据权利要求1至3中任一项所述的洗衣机，其特征在于，The washing machine according to any one of claims 1 to 3, characterized in that:

所述控制部在脱水过程中仅在所述脱水桶的转数为规定的可注水上限转数以下的情况下控制所述喷嘴单元向与偏心位置对应的所述通水管部注水，The control part controls the nozzle unit to inject water into the water pipe part corresponding to the eccentric position only when the rotation speed of the dehydration bucket is less than the predetermined upper limit rotation number of water injection during the dehydration process,

所述偏心位置位于所述脱水桶的上部或高度方向中央部的情况下的所述可注水上限转数比所述偏心位置位于所述脱水桶的下部的情况下的所述可注水上限转数小。The maximum number of revolutions that can be poured when the eccentric position is located at the upper part of the dehydration barrel or the center in the height direction is higher than the maximum number of revolutions that can be poured if the eccentric position is located at the lower part of the dehydration barrel small.
根据权利要求1至4中任一项所述的洗衣机，其特征在于，The washing machine according to any one of claims 1 to 4, characterized in that:

在向所述通水管部可注水的注水限制量根据所述脱水桶的转数而发生变化的情况下，In the case where the water injection restriction amount that can be injected into the water passage part changes according to the number of rotations of the dehydration barrel,

所述控制部在脱水过程中控制所述喷嘴单元，使得向所述通水管部的注水量不超过与所述脱水桶的转数相应的所述注水限制量。The control part controls the nozzle unit during the dehydration process so that the amount of water injected into the water-passing pipe part does not exceed the water injection restriction amount corresponding to the number of rotations of the dehydration barrel.