WO2018113770A1

WO2018113770A1 - Washing machine

Info

Publication number: WO2018113770A1
Application number: PCT/CN2017/117936
Authority: WO
Inventors: 永井孝之
Original assignee: 青岛海尔洗衣机有限公司; Aqua株式会社
Priority date: 2016-12-22
Filing date: 2017-12-22
Publication date: 2018-06-28
Also published as: CN110114525A; JP2018102379A; CN110114525B; JP6903290B2

Abstract

A washing machine with improved cleaning power comprises: a washing tub (4), a first rotating blade (6) disposed at a bottom (4A) of the washing tub (4), a guide path (37) for guiding detergent to a space (S) between a bottom wall (17) and the first rotating blade (6), a pumping water path (38) for drawing rinse solution in the washing tub (4) from the space (S) and returning it to the washing tub (4), a second rotating blade (7) provided in the space (S), a motor (5), a water supply section (43), and a control unit. After the detergent is introduced into the guide path (37), the control unit performs concentration cleaning in which less than a predetermined amount of water is supplied through the water supply section (43), thereby generating concentrated rinse solution in the space (S) of the detergent to be dissolved to a predetermined concentration, and then the first rotating blade (6) and the second rotating blade (7) are rotated by the motor (5).

Description

洗衣机washing machine

技术领域Technical field

本发明涉及一种洗衣机。The present invention relates to a washing machine.

背景技术Background technique

下述专利文献1所记载的洗衣机包含：洗涤桶、设于洗涤桶的底部的第一旋转叶片、设于洗涤桶的底部与第一旋转叶片之间的第二旋转叶片、以及扬水路。第一旋转叶片通过进行旋转而对洗涤桶内的洗涤物进行搅拌。第二旋转叶片通过进行旋转而将洗涤桶内的洗涤液从洗涤桶的底部送入扬水路。扬水路汲取由第二旋转叶片送入的洗涤液并将其回送至洗涤桶内。洗涤桶内的洗涤物通过第一旋转叶片被搅拌，或者从扬水路被喷淋洗涤液，由此被清洗。The washing machine described in Patent Document 1 includes a washing tub, a first rotating blade provided at the bottom of the washing tub, a second rotating blade provided between the bottom of the washing tub and the first rotating blade, and a water passage. The first rotating blade agitates the laundry in the washing tub by performing rotation. The second rotating blade feeds the washing liquid in the washing tub from the bottom of the washing tub into the water passage by rotating. The water pump draws the washing liquid fed by the second rotating blade and sends it back to the washing tub. The laundry in the washing tub is stirred by the first rotating blade, or the washing liquid is sprayed from the water passage, thereby being washed.

现有技术文献Prior art literature

专利文献Patent literature

专利文献1：日本特开2015-62582号公报Patent Document 1: Japanese Laid-Open Patent Publication No. 2015-62582

发明内容Summary of the invention

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

常常对洗衣机要求提高清洗力。It is often required to increase the cleaning power of the washing machine.

本发明是在这种背景下完成的，其目的在于，提供一种能谋求提高清洗力的洗衣机。The present invention has been made in view of the circumstances, and an object thereof is to provide a washing machine capable of improving the washing power.

用于解决问题的方案Solution to solve the problem

本发明是一种洗衣机，包含：洗涤桶，具有洗涤物的投入口、以及从下侧与所述投入口对置的底壁，容纳从所述投入口投入的洗涤物，从所述底壁侧蓄积洗涤液；第一旋转叶片，设于所述洗涤桶内的底部，通过进行旋转而对所述洗涤桶内的洗涤物进行搅拌；引导路，在所述洗涤桶中向下侧延伸，向所述洗涤桶内的所述底壁与所述第一旋转叶片之间的空间引导洗涤剂；扬水路，设于所述洗涤桶，用于从所述空间汲取所述洗涤桶内的洗涤液并将其回送至所述洗涤桶内；第二旋转叶片，配置于所述空间，通过以高于所述第一旋转叶片的速度进行旋转而将所述空间的洗涤液送入所述扬水路；电机，使所述第一旋转叶片以及所述第二旋转叶片旋转；供水部，用于向所述洗涤桶内进行供水；以及控制部，在向所述引导路投入洗涤剂后，进行如下浓缩清洗，即，通过所述供水部进行少于规定量的供水，由此，在所述空间生成洗涤剂溶解至规定浓度的浓缩洗涤液，然后通过所述电机使所述第一旋转叶片以及所述第二旋转叶片旋转。The present invention relates to a washing machine comprising: a washing tub having an inlet for washing, and a bottom wall opposed to the inlet from a lower side, accommodating laundry fed from the inlet, from the bottom wall a side accumulating washing liquid; a first rotating blade disposed at a bottom portion of the washing tub, stirring the laundry in the washing tub by rotating; guiding a path extending downward in the washing tub, Washing to the wash a space between the bottom wall and the first rotating blade in the drum to guide the detergent; a water pump is provided in the washing tub for extracting the washing liquid in the washing tub from the space and Returning it to the washing tub; the second rotating blade is disposed in the space, and the washing liquid of the space is sent to the water pump by rotating at a speed higher than the speed of the first rotating blade; Rotating the first rotating blade and the second rotating blade; a water supply portion for supplying water into the washing tub; and a control portion performing concentration cleaning after the detergent is introduced into the guiding path That is, the water supply unit performs less than a predetermined amount of water supply, whereby the detergent is dissolved in the space to a predetermined concentration of the concentrated washing liquid, and then the first rotating blade and the The second rotating blade rotates.

此外，本发明的特征在于，还包含：感测部，对所述电机的转速进行感测，在所述浓缩清洗过程中的所述电机的转速未上升至规定转速的情况下，所述控制部通过所述供水部进行追加的供水。Further, the present invention is characterized in further comprising: a sensing unit that senses a rotation speed of the motor, and in a case where the rotation speed of the motor in the concentrated cleaning process does not rise to a predetermined rotation speed, the control The additional water supply is performed by the water supply unit.

此外，本发明的特征在于，在所述追加的供水后的所述浓缩清洗过程中的所述电机的转速未上升至所述规定转速的情况下，所述控制部进行如下正常清洗，即，中止所述浓缩清洗，通过所述供水部进行追加的供水，直至所述洗涤桶内的水量达到所述规定量，然后通过所述电机使所述第一旋转叶片以及所述第二旋转叶片旋转。Further, the present invention is characterized in that, in a case where the number of revolutions of the motor in the concentrated washing process after the additional water supply is not increased to the predetermined number of revolutions, the control unit performs the following normal washing, that is, Suspending the concentrated cleaning, performing additional water supply through the water supply unit until the amount of water in the washing tub reaches the predetermined amount, and then rotating the first rotating blade and the second rotating blade by the motor .

此外，本发明的特征在于，在所述浓缩清洗过程中的所述电机的转速上升至规定转速的情况下，所述控制部在继续了规定时间的所述浓缩清洗后，不进行所述正常清洗而结束洗涤过程。Further, the present invention is characterized in that, in a case where the number of revolutions of the motor in the concentrated washing process is increased to a predetermined number of revolutions, the control unit does not perform the normal after the concentrated cleaning for a predetermined period of time The washing process is ended by washing.

发明效果Effect of the invention

根据本发明，在洗衣机的洗涤桶内，在底部设有第一旋转叶片，在洗涤桶的底壁与第一旋转叶片之间的空间配置有第二旋转叶片。关于洗涤桶，设有向底壁与第一旋转叶片之间的空间引导洗涤剂的引导路、和用于从该空间汲取洗涤桶内的洗涤液并将其回送至洗涤桶内的扬水路。在洗衣机中，在洗涤剂被投入引导路并到达底壁与第一旋转叶片之间的空间后进行少于规定量的供水，由此，会在该空间生成洗涤剂溶解至规定浓度的浓缩洗涤液。然后，通过电机使第一旋转叶片以及第二旋转叶片进行旋转，由此，会进行洗涤物的浓缩清洗。在浓缩清洗中，通过第一旋转叶片进行旋转而对洗涤桶内的洗涤物进行搅拌，因此，洗涤物被清洗。而且，通过第二旋转叶片以高于第一旋转叶片的速度进行旋转而将浓缩洗涤液送入扬水路，由此，浓缩洗涤液一边穿过扬水路猛烈地循环、一边被反复喷淋至洗涤桶内的洗涤物，因此，洗涤物通过浓缩洗涤液被强力地清洗。这些带来的结果是，能谋求清洗力的提高。According to the invention, in the washing tub of the washing machine, a first rotating blade is provided at the bottom, and a second rotating blade is disposed in a space between the bottom wall of the washing tub and the first rotating blade. Regarding the washing tub, a guide path for guiding the detergent to the space between the bottom wall and the first rotary vane, and a water passage for drawing the washing liquid in the washing tub from the space and returning it to the washing tub are provided. In the washing machine, after the detergent is put into the guide path and reaches the space between the bottom wall and the first rotating blade, less than a predetermined amount of water supply is performed, whereby the detergent is dissolved in the space to a concentrated washing of a predetermined concentration. liquid. Then, the first rotating blade and the second rotating blade are rotated by the motor, whereby concentrated washing of the laundry is performed. In the concentrated washing, the washing in the washing tub is stirred by the rotation of the first rotating blade, Therefore, the laundry is washed. Further, the second rotating blade is rotated at a higher speed than the first rotating blade to feed the concentrated washing liquid into the water passage, whereby the concentrated washing liquid is violently circulated through the water passage, and is repeatedly sprayed to the washing. The laundry in the tub, therefore, the laundry is strongly washed by the concentrated washing liquid. As a result of this, it is possible to improve the cleaning power.

此外，根据本发明，洗涤桶内的洗涤物会成为第一旋转叶片的阻力，由此，在浓缩清洗过程中的电机的转速未上升至规定转速的情况下，第二旋转叶片的转速也不会上升，因此，难以使浓缩洗涤液猛烈地循环并使其喷淋至洗涤物。该情况下，在洗涤桶内进行追加的供水。于是，洗涤桶内的水位在浓缩洗涤液中的洗涤剂的浓度不下降至所需以上的范围内上升，由此，能使洗涤物浮起而降低第一旋转叶片的阻力。因此，通过使浓缩清洗过程中的电机的转速上升至规定转速，能使第二旋转叶片高速旋转，因此，能使浓缩洗涤液猛烈地循环并使其喷淋至洗涤物。其结果是，即使因洗涤桶内的洗涤物多等而使第一旋转叶片的刚开始的阻力过大，也能谋求清洗力的提高。Further, according to the present invention, the laundry in the washing tub becomes the resistance of the first rotating blade, whereby the rotation speed of the second rotating blade does not rise in the case where the rotational speed of the motor in the concentrated washing process does not rise to the predetermined rotational speed. It will rise, so it is difficult to circulate the concentrated washing liquid violently and spray it to the laundry. In this case, additional water supply is performed in the washing tub. Then, the water level in the washing tub rises within a range in which the concentration of the detergent in the concentrated washing liquid does not fall to a level higher than necessary, whereby the laundry can be floated to lower the resistance of the first rotating blade. Therefore, the second rotating blade can be rotated at a high speed by increasing the number of revolutions of the motor during the concentrated washing process to a predetermined number of revolutions. Therefore, the concentrated washing liquid can be violently circulated and sprayed onto the laundry. As a result, even if the resistance of the first rotating blade is excessively large due to the large amount of laundry in the washing tub, the cleaning force can be improved.

此外，根据本发明，当在浓缩清洗过程中的电机的转速在追加的供水后也未上升至规定转速的情况下进一步进行追加的供水时，浓缩洗涤液会被稀释至不能算是浓缩洗涤液的通常浓度。该情况下，浓缩清洗被中止，进行追加的供水，直至洗涤桶内的水量达到规定量，然后第一旋转叶片以及第二旋转叶片进行旋转。由此，通过由第一旋转叶片的旋转实现的搅拌、洗涤剂溶解至通常浓度的洗涤液，能对洗涤物进行正常清洗。Further, according to the present invention, when the additional water supply is further performed when the number of revolutions of the motor in the concentrated washing process is not increased to the predetermined number of revolutions after the additional water supply, the concentrated washing liquid is diluted to a level that is not a concentrated washing liquid. Usually concentration. In this case, the concentrated washing is stopped, and additional water supply is performed until the amount of water in the washing tub reaches a predetermined amount, and then the first rotating blade and the second rotating blade rotate. Thereby, the laundry can be normally cleaned by the stirring by the rotation of the first rotating blade and the dissolution of the detergent to the washing liquid of a normal concentration.

此外，根据本发明，在浓缩清洗过程中的电机的转速上升至规定转速的情况下，浓缩清洗继续了规定时间后，不进行正常清洗而结束洗涤过程。由此，能谋求洗涤过程中的节水，因此，即使供水量少，通过浓缩清洗也能发挥最大限度的清洗力。Further, according to the present invention, when the number of revolutions of the motor in the concentrated washing process rises to a predetermined number of revolutions, the concentrated washing is continued for a predetermined period of time, and the washing process is terminated without performing normal washing. As a result, water saving during the washing process can be achieved. Therefore, even if the amount of water supplied is small, the maximum cleaning power can be exhibited by concentration washing.

附图说明DRAWINGS

图1是本发明的一实施方式的洗衣机的示意性纵剖面图。Fig. 1 is a schematic longitudinal cross-sectional view showing a washing machine in accordance with an embodiment of the present invention.

图2是表示洗衣机的电结构的框图。Fig. 2 is a block diagram showing the electrical configuration of the washing machine.

图3是表示在洗衣机中所执行的处理的流程图。 Fig. 3 is a flow chart showing the processing executed in the washing machine.

图4是表示在洗衣机中所执行的洗涤过程的流程图。Figure 4 is a flow chart showing the washing process performed in the washing machine.

具体实施方式detailed description

以下，参照附图，对本发明的实施方式进行具体说明。图1是表示本发明的一实施方式的洗衣机1的示意性纵剖面图。在提及洗衣机1的方向的情况下，以图1中的洗衣机1的姿势为基准。就是说，图1的上下方向是洗衣机1的上下方向，图1的左右方向、图1的与纸面正交的方向是洗衣机1的横向。洗衣机1包含：箱状的机壳2、配置于机壳2内的水桶3、洗涤桶4、电机5、第一旋转叶片6、第二旋转叶片7、导向部8以及罩部9。Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. Fig. 1 is a schematic longitudinal cross-sectional view showing a washing machine 1 according to an embodiment of the present invention. In the case where the direction of the washing machine 1 is mentioned, the posture of the washing machine 1 in Fig. 1 is taken as a reference. That is, the vertical direction of FIG. 1 is the vertical direction of the washing machine 1, and the horizontal direction of FIG. 1 and the direction orthogonal to the paper surface of FIG. 1 are the horizontal direction of the washing machine 1. The washing machine 1 includes a box-shaped casing 2, a water tub 3 disposed in the cabinet 2, a washing tub 4, a motor 5, first rotating blades 6, second rotating blades 7, guide portions 8, and a cover portion 9.

在机壳2的上表面部，设有用于投入取出洗涤物Q的投入取出口10、和对投入取出口10进行开闭的门11。水桶3是所谓的外桶，并由机壳2弹性支承。水桶3一体地包含：具有在上下方向延伸的中心轴线J的圆筒状的侧壁12、和在横向延伸并堵住侧壁12的下端的圆盘状的底壁13，例如是树脂制。在水桶3的上端，形成有由侧壁12的上端缘划分出并从下侧与投入取出口10对置的开口14。在底壁13的中心部，形成有贯通孔15。The upper surface portion of the casing 2 is provided with an input/output port 10 for taking in and taking out the laundry Q, and a door 11 for opening and closing the input/removal port 10. The water tub 3 is a so-called outer tub and is elastically supported by the cabinet 2. The water tub 3 integrally includes a cylindrical side wall 12 having a central axis J extending in the vertical direction, and a disk-shaped bottom wall 13 extending laterally and blocking the lower end of the side wall 12, and is made of, for example, resin. At the upper end of the water tub 3, an opening 14 which is defined by the upper end edge of the side wall 12 and which faces the input and take-out port 10 from the lower side is formed. A through hole 15 is formed in a central portion of the bottom wall 13.

以下，将绕着中心轴线J的周向称为周向P，将以中心轴线J为中心的径向称为径向R。周向P以及径向R均是沿着横向的水平方向。在径向R中，将靠近中心轴线J的方向称为径向内侧R1，将远离中心轴线J的方向称为径向外侧R2。Hereinafter, the circumferential direction around the central axis J is referred to as the circumferential direction P, and the radial direction centered on the central axis J is referred to as the radial direction R. The circumferential direction P and the radial direction R are both horizontal directions along the lateral direction. In the radial direction R, a direction close to the central axis J is referred to as a radially inner side R1, and a direction away from the central axis J is referred to as a radially outer side R2.

洗涤桶4是所谓的内桶。洗涤桶4形成为比水桶3小一圈的圆筒状，呈同轴状容纳于水桶3内。洗涤桶4一体地包含：具有与中心轴线J一致的中心轴线的圆筒状的侧壁16、和在横向延伸并堵住侧壁16的下端的圆盘状的底壁17，例如是金属制。侧壁16的下端部与底壁17构成洗涤桶4的底部4A。在洗涤桶4的上端，形成有由侧壁16的上端缘划分出并从下侧与水桶3的开口14对置的投入口18。当使用者打开门11时，机壳2的投入取出口10、开口14以及投入口18以在上下方向排列的状态被向上侧打开。由此，使用者能经由投入取出口10、开口14以及投入口18向洗涤桶4内投入洗涤物Q或者取出洗涤桶4内的洗涤物Q。在侧壁16，形成有许多贯通孔(未图示)。在侧壁16的上端部，可以装配有用于取得洗涤桶4的旋转平衡的、在内部流动自如地容纳有液体的平衡环19。此情况下，由平衡环19包围的区域是投入口18。在洗涤桶4的从下侧与投入口18对置的底壁17的中心部形成有贯通孔20，在贯通孔20的周围，在周向P排列形成有多个贯通孔21。The washing tub 4 is a so-called inner tub. The washing tub 4 is formed in a cylindrical shape slightly smaller than the water tub 3, and is accommodated coaxially in the water tub 3. The washing tub 4 integrally includes a cylindrical side wall 16 having a central axis coinciding with the central axis J, and a disk-shaped bottom wall 17 extending laterally and blocking the lower end of the side wall 16, for example, made of metal . The lower end portion of the side wall 16 and the bottom wall 17 constitute the bottom portion 4A of the washing tub 4. At the upper end of the washing tub 4, an insertion opening 18 which is defined by the upper end edge of the side wall 16 and which faces the opening 14 of the water tub 3 from the lower side is formed. When the user opens the door 11, the input and take-out port 10, the opening 14, and the input port 18 of the casing 2 are opened upward in a state of being aligned in the up-and-down direction. Thereby, the user can put the laundry Q into the washing tub 4 or take out the laundry Q in the washing tub 4 via the input and take-out port 10, the opening 14, and the input port 18. A plurality of through holes (not shown) are formed in the side wall 16. At the upper end portion of the side wall 16, a flat for accommodating the liquid in the interior of the washing tub 4 can be fitted Henghuan 19. In this case, the area surrounded by the balance ring 19 is the input port 18. A through hole 20 is formed in a central portion of the bottom wall 17 of the washing tub 4 facing the input port 18 from the lower side, and a plurality of through holes 21 are formed in the circumferential direction P around the through hole 20.

与水桶3以及洗涤桶4有关，洗衣机1包含供水路22以及排水路23。在供水路22的一端，形成有面向洗涤桶4内的供水口22A，供水路22的另一端连接于水龙头(未图示)。在供水路22的中途，设有可开闭的供水阀24。当供水阀24打开时，来自水龙头的自来水流经供水路22，从供水口22A被供给至洗涤桶4内。以下，将自来水、如下所述混合有洗涤剂的水称为洗涤液。洗涤液从底壁17侧蓄积于洗涤桶4的内部。洗涤液穿过侧壁16的贯通孔(未图示)、底壁17的贯通孔21在水桶3与洗涤桶4之间往来，由此，在水桶3以及洗涤桶4蓄积有相同水位的洗涤水。排水路23的一端连接于水桶3的底壁13，排水路23的另一端被拉出至机体外部。在排水路23的中途，设有可开闭的排水阀25。当排水阀25打开时，水桶3以及洗涤桶4内的洗涤液流经排水路23被排出至机体外部。The washing machine 1 includes a water supply path 22 and a drainage path 23 in connection with the water tub 3 and the washing tub 4. At one end of the water supply path 22, a water supply port 22A facing the inside of the washing tub 4 is formed, and the other end of the water supply path 22 is connected to a faucet (not shown). In the middle of the water supply path 22, a water supply valve 24 that can be opened and closed is provided. When the water supply valve 24 is opened, the tap water from the faucet flows through the water supply path 22, and is supplied from the water supply port 22A into the washing tub 4. Hereinafter, tap water and water in which a detergent is mixed as described below is referred to as a washing liquid. The washing liquid is accumulated in the inside of the washing tub 4 from the side of the bottom wall 17 . The washing liquid passes through the through hole (not shown) of the side wall 16 and the through hole 21 of the bottom wall 17 to pass between the water tub 3 and the washing tub 4, whereby the washing of the same water level is accumulated in the water tub 3 and the washing tub 4. water. One end of the drain path 23 is connected to the bottom wall 13 of the water tub 3, and the other end of the drain path 23 is pulled out to the outside of the body. In the middle of the drain passage 23, a drain valve 25 that can be opened and closed is provided. When the drain valve 25 is opened, the washing liquid in the water tub 3 and the washing tub 4 is discharged to the outside of the body through the drain path 23.

电机5是电动机，并配置于水桶3的底壁13的下侧。电机5具有例如向上侧突出的驱动轴27。在驱动轴27，连结有公知构成的离合器机构28。在离合器机构28，连结有用于从驱动轴27接受并输出电机5所产生的驱动力的第一输出轴31、第二输出轴32以及第三输出轴33。离合器机构28能分别对第一输出轴31、第二输出轴32以及第三输出轴33传递或切断电机5的驱动力。The motor 5 is an electric motor and is disposed on the lower side of the bottom wall 13 of the water tub 3. The motor 5 has, for example, a drive shaft 27 that protrudes upward. A clutch mechanism 28 of a known configuration is coupled to the drive shaft 27. The clutch mechanism 28 is coupled to a first output shaft 31, a second output shaft 32, and a third output shaft 33 for receiving and outputting a driving force generated by the motor 5 from the drive shaft 27. The clutch mechanism 28 can transmit or cut the driving force of the motor 5 to the first output shaft 31, the second output shaft 32, and the third output shaft 33, respectively.

第一输出轴31形成为具有与中心轴线J一致的中心轴线的圆柱状。第一输出轴31从离合器机构28向上侧延伸并插通于水桶3的底壁13的贯通孔15和洗涤桶4的底壁17的贯通孔20。第一输出轴31的上端部31A向底壁17的上侧突出并配置于洗涤桶4内。第二输出轴32形成为具有与中心轴线J一致的中心轴线的圆管状。第二输出轴32以围绕第一输出轴31的状态从离合器机构28向上侧延伸并插通于贯通孔15和贯通孔20。第二输出轴32的上端部32A向底壁17的上侧突出并配置于洗涤桶4内。第一输出轴31的上端部31A配置为向上端部32A的上侧露出。The first output shaft 31 is formed in a cylindrical shape having a central axis coinciding with the central axis J. The first output shaft 31 extends upward from the clutch mechanism 28 and is inserted into the through hole 15 of the bottom wall 13 of the water tub 3 and the through hole 20 of the bottom wall 17 of the washing tub 4. The upper end portion 31A of the first output shaft 31 protrudes toward the upper side of the bottom wall 17 and is disposed in the washing tub 4. The second output shaft 32 is formed in a circular tubular shape having a central axis coinciding with the central axis J. The second output shaft 32 extends upward from the clutch mechanism 28 in a state of surrounding the first output shaft 31 and is inserted through the through hole 15 and the through hole 20. The upper end portion 32A of the second output shaft 32 protrudes toward the upper side of the bottom wall 17 and is disposed in the washing tub 4. The upper end portion 31A of the first output shaft 31 is disposed to be exposed at the upper side of the upper end portion 32A.

第三输出轴33配置为具有与中心轴线J一致的中心轴线的圆筒状，其外周面以及内周面可以在上下方向的多个位置扩径或缩径。第三输出轴33以围绕第一输出轴31以及第二输出轴32的状态从离合器机构28向上侧延伸并插通于贯通孔15。第三输出轴33的上端部33A形成为向径向外侧R2伸出的凸缘状，从下侧固定于洗涤桶4的底壁17的中央部。由此，洗涤桶4可一体旋转地连结于第三输出轴33。因此，当电机5的驱动力传递至第三输出轴33时，洗涤桶4与第三输出轴33一起绕着中心轴线J被驱动旋转。The third output shaft 33 is disposed in a cylindrical shape having a central axis that coincides with the central axis J, and the outer peripheral surface and the inner peripheral surface thereof may be expanded or reduced in diameter at a plurality of positions in the up and down direction. The third output shaft 33 surrounds the The state of the output shaft 31 and the second output shaft 32 extends from the clutch mechanism 28 to the upper side and is inserted into the through hole 15. The upper end portion 33A of the third output shaft 33 is formed in a flange shape that protrudes outward in the radial direction R2, and is fixed to the central portion of the bottom wall 17 of the washing tub 4 from the lower side. Thereby, the washing tub 4 can be coupled to the third output shaft 33 so as to be rotatable integrally. Therefore, when the driving force of the motor 5 is transmitted to the third output shaft 33, the washing tub 4 is driven to rotate together with the third output shaft 33 about the center axis J.

在呈同轴状配置的第一输出轴31、第二输出轴32以及第三输出轴33与水桶3的底壁13的插通有这些输出轴的贯通孔15的周缘部中的相邻构件之间，夹插有滚动轴承、滑动轴承等轴承34或油封等密封构件35。通过轴承34，第三输出轴33以及洗涤桶4以能绕中心轴线J旋转的方式被水桶3支承，第一输出轴31、第二输出轴32以及第三输出轴33中相邻的构件之间能绕中心轴线J相对旋转。通过密封构件35，会防止蓄积于水桶3以及洗涤桶4的洗涤水向底壁13的下侧泄露。The first output shaft 31, the second output shaft 32, and the third output shaft 33, which are disposed coaxially, and the bottom wall 13 of the water tub 3 are adjacent members of the peripheral portion of the through hole 15 through which the output shafts are inserted. A bearing 34 such as a rolling bearing or a sliding bearing or a sealing member 35 such as an oil seal is interposed therebetween. The third output shaft 33 and the washing tub 4 are supported by the water tub 3 through the bearing 34 so as to be rotatable about the central axis J, and the adjacent members of the first output shaft 31, the second output shaft 32, and the third output shaft 33 are The space can be relatively rotated about the central axis J. By the sealing member 35, the washing water accumulated in the water tub 3 and the washing tub 4 is prevented from leaking to the lower side of the bottom wall 13.

在圆筒状的第三输出轴33的内部，容纳有变速机构36。变速机构36分别机械地连结于第一输出轴31、第二输出轴32以及第三输出轴33。作为变速机构36，可以采用行星齿轮机构等公知的变速机构。第一输出轴31以及第二输出轴32经由变速机构36连结于离合器机构28。由此，电机5的驱动力经由离合器机构28以及变速机构36传递至第一输出轴31以及第二输出轴32。于是，第一输出轴31以及第二输出轴32分别绕着中心轴线J被驱动旋转。其中，通过变速机构36，第二输出轴32以高于第一输出轴31的速度进行旋转。Inside the cylindrical third output shaft 33, a shifting mechanism 36 is housed. The shifting mechanism 36 is mechanically coupled to the first output shaft 31, the second output shaft 32, and the third output shaft 33, respectively. As the speed change mechanism 36, a known speed change mechanism such as a planetary gear mechanism can be employed. The first output shaft 31 and the second output shaft 32 are coupled to the clutch mechanism 28 via a shifting mechanism 36. Thereby, the driving force of the motor 5 is transmitted to the first output shaft 31 and the second output shaft 32 via the clutch mechanism 28 and the shifting mechanism 36. Thus, the first output shaft 31 and the second output shaft 32 are respectively driven to rotate about the central axis J. Among them, the second output shaft 32 is rotated at a speed higher than the first output shaft 31 by the shifting mechanism 36.

第一旋转叶片6是所谓的波轮，例如是树脂制。第一旋转叶片6具有与中心轴线J一致的中心轴线，形成为在上下方向薄的圆盘状。在第一旋转叶片6的上表面部，形成有多个从中心轴线J呈放射状延伸并呈筋状***的搅拌叶片6A。第一旋转叶片6设于洗涤桶4的底部4A，详细而言，在洗涤桶4内从上侧与底壁17重叠地配置。因此，在洗涤桶4内的下部，形成有从上下方向由第一旋转叶片6以及底壁17夹持并上下扁平的空间S。第一旋转叶片6的中央部固定于第一输出轴31的上端部31A，由此，第一旋转叶片6可一体旋转地连结于第一输出轴31。因此，当电机5的驱动力传递至第一输出轴31时，第一旋转叶片6与第一输出轴31一起绕着中心轴线J被驱动旋转。The first rotating blade 6 is a so-called pulsator, and is made of, for example, a resin. The first rotary vane 6 has a central axis that coincides with the central axis J, and is formed in a disk shape that is thin in the up and down direction. At the upper surface portion of the first rotary vane 6, a plurality of agitating blades 6A extending radially from the central axis J and having a rib-like bulge are formed. The first rotary vane 6 is provided at the bottom portion 4A of the washing tub 4, and in detail, is disposed in the washing tub 4 so as to overlap the bottom wall 17 from the upper side. Therefore, in the lower portion of the washing tub 4, a space S which is sandwiched by the first rotating blade 6 and the bottom wall 17 from the vertical direction and which is vertically flattened is formed. The central portion of the first rotor blade 6 is fixed to the upper end portion 31A of the first output shaft 31, whereby the first rotor blade 6 is coupled to the first output shaft 31 so as to be rotatable. Therefore, when the driving force of the motor 5 is transmitted to the first output shaft 31, the first rotating blade 6 is driven to rotate around the central axis J together with the first output shaft 31.

第二旋转叶片7例如是金属制，具有与中心轴线J一致的中心轴线，形成为在上下方向薄的圆盘状。在第二旋转叶片7的中心部，形成有贯通孔7A。在第二旋转叶片7的下表面部，形成有多个向下侧突出并从贯通孔7A呈放射状延伸的肋状的扬水叶片7B。各扬水叶片7B既可以沿着径向R呈直线状延伸，也可以随着朝向径向外侧R2而弯曲。第二旋转叶片7以与洗涤桶4以及第一旋转叶片6这两方不接触的状态配置于它们之间的空间S。在第二旋转叶片7的贯通孔7A，具有游隙地插通有第一旋转叶片6的中央部和第一输出轴31的上端部31A。第二旋转叶片7的贯通孔7A的周围的部分固定于第二输出轴32的上端部32A，由此，第二旋转叶片7可一体旋转地连结于第二输出轴32。因此，当电机5的驱动力传递至第二输出轴32时，第二旋转叶片7绕着中心轴线J被驱动旋转。如上所述，第二输出轴32以高于第一输出轴31的速度进行旋转，因此，第二旋转叶片7以高于连结于第一输出轴31的第一旋转叶片6的速度进行旋转。具体而言，第二旋转叶片7的转速优选设定为第一旋转叶片6的转速的1.5倍以上且2.8倍以下。The second rotary vane 7 is made of, for example, metal and has a central axis coinciding with the central axis J, and is formed as It is thin in the shape of a disk in the vertical direction. A through hole 7A is formed in a central portion of the second rotor blade 7. On the lower surface portion of the second rotor blade 7, a plurality of rib-shaped water-spreading blades 7B projecting downward and radially extending from the through-hole 7A are formed. Each of the water-lifting blades 7B may extend linearly in the radial direction R or may be curved toward the radially outer side R2. The second rotary vane 7 is disposed in a space S between them in a state in which it is not in contact with both the washing tub 4 and the first rotary vane 6. In the through hole 7A of the second rotor blade 7, the center portion of the first rotor blade 6 and the upper end portion 31A of the first output shaft 31 are inserted with play. The portion around the through hole 7A of the second rotor blade 7 is fixed to the upper end portion 32A of the second output shaft 32, whereby the second rotor blade 7 is coupled to the second output shaft 32 so as to be rotatable integrally. Therefore, when the driving force of the motor 5 is transmitted to the second output shaft 32, the second rotary vane 7 is driven to rotate about the central axis J. As described above, the second output shaft 32 rotates at a higher speed than the first output shaft 31, and therefore, the second rotary vane 7 rotates at a higher speed than the first rotary vane 6 coupled to the first output shaft 31. Specifically, the rotation speed of the second rotor blade 7 is preferably set to be 1.5 times or more and 2.8 times or less the number of revolutions of the first rotor blade 6 .

导向部8是遍及从平衡环19至底壁17的范围沿着洗涤桶4的侧壁16向下侧延伸的槽状，例如是树脂制，其水平剖面形成为例如向径向内侧R1凸弯曲的圆弧状。导向部8以从径向内侧R1覆盖侧壁16的圆周上一个部位的方式固定于侧壁16。由此，在导向部8与侧壁16之间，形成有在洗涤桶4内从侧壁16的上部向下侧延伸至底壁17的引导路37。在导向部8的上端部，设有在径向R贯通导向部8的开口8A、和对开口8A进行开闭的盖8B。盖8B经由穿过其下端部的转动轴8C连结于导向部8。盖8B能在如实线所示沿着导向部8关闭开口8A的关闭位置与如虚线所示向径向内侧R1拉出而打开开口8A的打开位置之间绕着转动轴8C进行转动。在盖8B位于打开位置时，引导路37的上端部被从开口8A向径向内侧R1且上侧打开而作为投入部37A。引导路37的下端部向径向内侧R1弯曲并从径向外侧R2连接于空间S。需要说明的是，导向部8可以存在多个，该情况下，引导路37也设有多个。The guide portion 8 is formed in a groove shape extending from the balance ring 19 to the bottom wall 17 along the side wall 16 of the washing tub 4, for example, made of resin, and its horizontal cross section is formed to be, for example, convexly curved toward the radially inner side R1. Arc shape. The guide portion 8 is fixed to the side wall 16 so as to cover one portion of the circumference of the side wall 16 from the radially inner side R1. Thereby, between the guide portion 8 and the side wall 16, a guide path 37 that extends from the upper portion of the side wall 16 to the bottom wall 17 in the washing tub 4 is formed. An opening 8A that penetrates the guide portion 8 in the radial direction R and a cover 8B that opens and closes the opening 8A are provided at the upper end portion of the guide portion 8. The cover 8B is coupled to the guide portion 8 via a rotation shaft 8C passing through the lower end portion thereof. The cover 8B is rotatable about the rotation shaft 8C between a closed position in which the opening 8A is closed along the guide portion 8 as shown by a solid line and an open position in which the opening 8A is opened to the radially inner side R1 as indicated by a broken line. When the lid 8B is in the open position, the upper end portion of the guide passage 37 is opened from the opening 8A toward the radially inner side R1 and the upper side as the input portion 37A. The lower end portion of the guide path 37 is curved toward the radially inner side R1 and is connected to the space S from the radially outer side R2. It should be noted that a plurality of the guide portions 8 may exist. In this case, a plurality of guide paths 37 are also provided.

罩部9是遍及从洗涤桶4的侧壁16的下端部至平衡环19的跟前的范围向上侧延伸的槽状，例如是树脂制，其水平剖面形成为例如向径向内侧R1凸弯曲的圆弧状。罩部9以从径向内侧R1覆盖侧壁16的在周向P偏离导向部8的部分的方式固定于侧壁16。由此，在罩部9与侧壁16之间，形成有在洗涤桶4内从侧壁16的下端部向上侧延伸至平衡环19的跟前的扬水路38。扬水路38的下端部向径向内侧R1弯曲并从径向外侧R2连接于空间S。扬水路38的下端是与空间S连通的入口38A。在罩部9的上端部，形成有在径向R贯通罩部9的贯通孔9A。扬水路38的上端部的从贯通孔9A向径向内侧R1露出的部分是出口38B。出口38B在洗涤桶4内配置于比入口38A以及第一旋转叶片6高的位置，并面向径向内侧R1。需要说明的是，罩部9可以存在多个，该情况下，扬水路38也设有多个。The cover portion 9 is formed in a groove shape extending upward from the lower end portion of the side wall 16 of the washing tub 4 to the front side of the balance ring 19, and is made of, for example, a resin, and its horizontal cross section is formed to be convexly curved toward the radially inner side R1, for example. Arc shape. The cover portion 9 is fixed to the side wall 16 so as to cover the portion of the side wall 16 that is displaced from the guide portion 8 in the circumferential direction P from the radially inner side R1. Thereby, between the cover portion 9 and the side wall 16, is formed in the washing tub 4 The lower end portion of the side wall 16 extends upward to the forward water passage 38 of the balance ring 19. The lower end portion of the water passage 38 is bent toward the radially inner side R1 and connected to the space S from the radially outer side R2. The lower end of the water passage 38 is an inlet 38A that communicates with the space S. A through hole 9A penetrating the cover portion 9 in the radial direction R is formed at the upper end portion of the cover portion 9. The portion of the upper end portion of the water passage 38 that is exposed from the through hole 9A toward the radially inner side R1 is the outlet 38B. The outlet 38B is disposed in the washing tub 4 at a position higher than the inlet 38A and the first rotating blade 6, and faces the radially inner side R1. It should be noted that a plurality of cover portions 9 may be present. In this case, a plurality of water passages 38 are also provided.

图2是表示洗衣机1的电结构的框图。洗衣机1还包含：控制部40、感测部41、显示操作部42、供水部43、水位传感器44、以及排水部45。控制部40构成为，例如包含CPU46、ROM和RAM等存储器47、以及计时器48的微型计算机，并嵌入机壳2。在控制部40，电连接有电机5、感测部41、显示操作部42、供水部43、水位传感器44以及排水部45。FIG. 2 is a block diagram showing an electrical configuration of the washing machine 1. The washing machine 1 further includes a control unit 40, a sensing unit 41, a display operation unit 42, a water supply unit 43, a water level sensor 44, and a drain unit 45. The control unit 40 is configured to include, for example, a CPU 47, a memory 47 such as a ROM and a RAM, and a microcomputer of the timer 48, and is embedded in the casing 2. The control unit 40 is electrically connected to the motor 5, the sensing unit 41, the display operation unit 42, the water supply unit 43, the water level sensor 44, and the drain unit 45.

控制部40控制电机5的驱动，由此，使洗涤桶4、第一旋转叶片6以及第二旋转叶片7旋转，或者使它们的旋转停止。此外，在前述的离合器机构28为电动的情况下，控制部40控制离合器机构28，由此，能分别对洗涤桶4、第一旋转叶片6以及第二旋转叶片7传递或切断电机5的驱动力。感测部41是对电机5的转速、严格来讲是电机5内的转子(未图示)的转速进行感测的构成，例如由霍尔IC构成。感测部41所感测到的电机5的转速被实时输入至控制部40。The control unit 40 controls the driving of the motor 5, thereby rotating the washing tub 4, the first rotating blades 6, and the second rotating blades 7, or stopping their rotation. Further, when the clutch mechanism 28 described above is electrically operated, the control unit 40 controls the clutch mechanism 28, whereby the driving of the motor 5 can be transmitted or cut to the washing tub 4, the first rotary vane 6, and the second rotary vane 7, respectively. force. The sensor unit 41 is configured to sense the number of revolutions of the motor 5 and strictly the number of revolutions of a rotor (not shown) in the motor 5, and is constituted by, for example, a Hall IC. The rotation speed of the motor 5 sensed by the sensing unit 41 is input to the control unit 40 in real time.

显示操作部42设于机壳2的表面，由开关、液晶面板等构成。控制部40接受使用者对显示操作部42的操作，或者以能目视的方式将必要信息显示于显示操作部42，或者由显示操作部42发出峰鸣。供水部43至少包含前述的供水阀24。控制部40对供水阀24进行开闭，由此，向水桶3内以及洗涤桶4内供水，或者停止供水。水位传感器44是对水桶3的水位、即洗涤桶4的水位进行感测的公知的传感器。排水部45至少包含前述的排水阀25。控制部40对排水阀25进行开闭，由此，进行水桶3以及洗涤桶4的排水，或者停止排水。The display operation unit 42 is provided on the surface of the casing 2, and is constituted by a switch, a liquid crystal panel or the like. The control unit 40 receives an operation of the display operation unit 42 by the user, or displays the necessary information on the display operation unit 42 in a visual manner, or causes the display operation unit 42 to emit a peak sound. The water supply unit 43 includes at least the aforementioned water supply valve 24. The control unit 40 opens and closes the water supply valve 24, thereby supplying water into the water tub 3 and the washing tub 4, or stopping the water supply. The water level sensor 44 is a well-known sensor that senses the water level of the water tub 3, that is, the water level of the washing tub 4. The drain portion 45 includes at least the above-described drain valve 25. The control unit 40 opens and closes the drain valve 25, thereby draining the water tub 3 and the washing tub 4, or stopping the draining.

接着，对洗衣机1中由控制部40执行的洗涤运转进行说明。参照图3的流程图，洗涤运转具有：洗涤过程(步骤S1)，对容纳于洗涤桶4内的洗涤物Q进行洗涤；漂洗过程(步骤S2)，对洗涤过程后的洗涤物Q进行漂洗；以及脱水过程(步骤S3)，在漂洗过程后对洗涤物Q进行脱水。Next, the washing operation performed by the control unit 40 in the washing machine 1 will be described. Referring to the flowchart of FIG. 3, the washing operation has a washing process (step S1), washing the laundry Q contained in the washing tub 4, and a rinsing process (step S2), rinsing the laundry Q after the washing process; And off The water process (step S3), the laundry Q is dehydrated after the rinsing process.

参照图1和图4的流程图，对洗涤过程进行说明。当使用者将洗涤物Q从投入口18投入而使其容纳于洗涤桶4内，并通过对显示操作部42进行操作来指示洗涤运转的开始时，控制部40接受该指示(步骤S11)，感测洗涤桶4内的洗涤物Q的量作为负荷量(步骤S12)。控制部40既可以通过专用的传感器(未图示)来感测负荷量，也可以根据例如使洗涤桶4固定旋转时的电机5的转速的偏差来感测负荷量。控制部40根据本次的负荷量来取得所需的洗涤剂以及自来水的各自规定量。这些规定量按照负荷量进行汇总并预先存储于存储器47。控制部40将与本次的负荷量对应的洗涤剂的规定量显示于显示操作部42。在洗涤过程中存在：在向洗涤桶4内供水至根据本次的负荷量确定的规定量后、对洗涤物Q进行清洗的正常清洗，以及使用了通过将洗涤剂在远远少于规定量的自来水中溶解至规定浓度而生成的浓缩洗涤液的浓缩清洗。需要说明的是，在步骤S11中的来自使用者的指示中，可以包含关于是否进行浓缩清洗的选择的指示。The washing process will be described with reference to the flowcharts of Figs. 1 and 4. When the user puts the laundry Q into the washing tub 4 from the inlet port 18 and instructs the display operation portion 42 to instruct the start of the washing operation, the control unit 40 accepts the instruction (step S11). The amount of the laundry Q in the washing tub 4 is sensed as a load amount (step S12). The control unit 40 may sense the amount of load by a dedicated sensor (not shown), or may sense the amount of load based on, for example, a variation in the number of revolutions of the motor 5 when the washing tub 4 is fixedly rotated. The control unit 40 acquires a predetermined amount of the required detergent and tap water based on the current load amount. These predetermined amounts are summarized in accordance with the load amount and stored in advance in the memory 47. The control unit 40 displays the predetermined amount of the detergent corresponding to the current load amount on the display operation unit 42. During the washing process, there is a normal washing of the washing material Q after the water is supplied into the washing tub 4 to a predetermined amount determined according to the current load amount, and the use of the detergent is far less than the prescribed amount. Concentrated cleaning of concentrated washing liquid generated by dissolving in tap water to a predetermined concentration. It should be noted that the instruction from the user in step S11 may include an instruction as to whether or not to perform the concentration cleaning.

感测到负荷量的控制部40等待使用者投入洗涤剂(步骤S13)。使用者将显示操作部42的显示作为参考，准备本次确定的规定量相应的洗涤剂，打开门11并使盖8B转动至打开位置，然后将洗涤剂从投入部37A投入引导路37内。于是，所投入的洗涤剂在引导路37中向下流动，由此，被引导至洗涤桶4的底壁17与第一旋转叶片6之间的空间S(参照图1的粗虚线的箭头)。如此，引导路37是用于将洗涤剂引导至空间S的直通路径。接着，当使用者使盖8B转动至关闭位置后关闭门11时，完成洗涤剂的投入。对于控制部40，当例如通过传感器(未图示)感测到门11关闭时，判断为投入了洗涤剂(在步骤S13中为是)，通过供水部43开始向水桶3以及洗涤桶4内供水(步骤S14)。The control unit 40 that senses the amount of load waits for the user to put in the detergent (step S13). The user sets the display of the operation unit 42 as a reference, prepares the detergent corresponding to the predetermined amount, and opens the door 11 and rotates the lid 8B to the open position, and then the detergent is put into the guide path 37 from the input unit 37A. Then, the supplied detergent flows downward in the guide path 37, thereby being guided to the space S between the bottom wall 17 of the washing tub 4 and the first rotating blade 6 (refer to the arrow of the thick broken line of FIG. 1) . As such, the guide path 37 is a through path for guiding the detergent to the space S. Next, when the user closes the door 11 after rotating the lid 8B to the closed position, the input of the detergent is completed. When the control unit 40 senses that the door 11 is closed by, for example, a sensor (not shown), it is determined that the detergent has been charged (YES in step S13), and the water supply unit 43 starts to move into the water tub 3 and the washing tub 4. Water supply (step S14).

在通过供水而使洗涤桶4内的水位上升至比前述的规定量的水位低的规定水位时，在空间S及其周围，完成前述的浓缩洗涤液，因此，控制部40基于洗涤桶4内的水位来监控是否完成了浓缩洗涤液(步骤S15)。此处的规定水位是指，例如相当于规定量的水位的50％的水位。当完成浓缩洗涤液时，就是说，当通过该方式进行少于规定量的供水而在空间S生成浓缩洗涤液时(在步骤S15为是)，控制部40停止供水并开始浓缩清洗(步骤S16)。具体而言，在浓缩洗涤液蓄积于空间S的状态下，控制部40通过电机5使第一旋转叶片6以及第二旋转叶片7旋转。When the water level in the washing tub 4 is raised to a predetermined water level lower than the predetermined water level by the water supply, the concentrated washing liquid is completed in the space S and its surroundings, and therefore, the control unit 40 is based on the inside of the washing tub 4. The water level is used to monitor whether or not the concentrated washing liquid is completed (step S15). The predetermined water level herein refers to, for example, a water level equivalent to 50% of a predetermined amount of water level. When the concentrated washing liquid is completed, that is, when less than the predetermined amount of water supply is performed in this manner and the concentrated washing liquid is generated in the space S (YES in step S15), the control unit 40 stops the water supply and starts the concentrated washing (step S16). ). Specifically, in concentration In a state where the washing liquid is accumulated in the space S, the control unit 40 rotates the first rotating blade 6 and the second rotating blade 7 by the motor 5.

在浓缩清洗过程中，洗涤桶4内位于第一旋转叶片6之上的洗涤物Q与进行旋转的第一旋转叶片6的搅拌叶片6A接触，由此被搅拌。此外，空间S的浓缩洗涤液被进行旋转的第二旋转叶片7的扬水叶片7B向径向外侧R2挤出并被送入至扬水路38的入口38A，在扬水路38中上升并被从出口38B喷洒至洗涤桶4内的洗涤物Q(参照图1的粗实线的箭头)。当通过这样的由第二旋转叶片7实现的泵送(pump up)效果而被从空间S汲取至扬水路38内、并从出口38B回送至洗涤桶4内的浓缩洗涤液渗透于洗涤物Q时，洗涤物Q的污垢被浓缩洗涤液中的高浓度的洗涤剂成分分解。渗透于洗涤物Q的浓缩洗涤液在洗涤桶4内从洗涤物Q渗出后向下流动至空间S。由此，浓缩洗涤液以从空间S穿过扬水路38和洗涤物Q并返回至空间S的方式进行循环。In the concentrated washing process, the laundry Q located on the first rotating blade 6 in the washing tub 4 is in contact with the stirring blade 6A of the rotating first rotating blade 6, thereby being stirred. Further, the concentrated washing liquid in the space S is extruded by the water-spreading blade 7B of the second rotating blade 7 that is rotated to the radially outer side R2 and sent to the inlet 38A of the water-lifting path 38, rising in the water-lifting path 38 and being taken out from the outlet. 38B is sprayed to the laundry Q in the washing tub 4 (refer to the arrow of the thick solid line of Fig. 1). The concentrated washing liquid that is drawn from the space S into the water passage 38 and returned from the outlet 38B to the washing tub 4 by the pump up effect by the second rotary vane 7 penetrates into the laundry Q At the time, the dirt of the laundry Q is decomposed by the high-concentration detergent component in the concentrated washing liquid. The concentrated washing liquid permeating the laundry Q flows out from the laundry Q in the washing tub 4 and flows downward to the space S. Thereby, the concentrated washing liquid circulates so as to pass through the water passage 38 and the laundry Q from the space S and return to the space S.

在浓缩清洗中，通过第一旋转叶片6进行旋转而对洗涤桶4内的洗涤物Q进行搅拌，因此，洗涤物Q通过来自第一旋转叶片6的机械力被清洗。而且，通过第二旋转叶片7以高于第一旋转叶片6的速度进行旋转而将浓缩洗涤液送入扬水路38的入口38A，由此，浓缩洗涤液一边穿过扬水路38猛烈地循环、一边被反复喷淋至洗涤桶4内的洗涤物Q。由此，所有的洗涤物Q通过浓缩洗涤液内的高浓度的洗涤剂成分被强力地清洗。它们所带来的结果是，能谋求清洗力的提高。In the concentrated washing, the laundry Q in the washing tub 4 is stirred by the rotation of the first rotating blades 6, and therefore, the laundry Q is washed by the mechanical force from the first rotating blades 6. Further, the second rotating blade 7 is rotated at a higher speed than the first rotating blade 6, and the concentrated washing liquid is sent to the inlet 38A of the water passage 38, whereby the concentrated washing liquid circulates violently through the water passage 38. The laundry Q in the washing tub 4 is repeatedly sprayed while being sprayed. Thereby, all the laundry Q is strongly washed by the high-concentration detergent component in the concentrated washing liquid. As a result of these, it is possible to improve the cleaning power.

控制部40通过计时器48监控从开始浓缩清洗起的经过时间。当从开始浓缩清洗起经过第一洗涤时间时(在步骤S17中为是)，通过感测部41确认当前的电机5的转速是否到达规定转速(步骤S18)。若电机5的转速为规定转速以上，则第二旋转叶片7正在进行高速旋转，由此，浓缩洗涤液正在以能充分地清洗洗涤物Q的程度的势头进行循环。另一方面，若电机5的转速小于规定转速，则第二旋转叶片7的转速低，因此，浓缩洗涤液的势头弱，根据情况会处于不循环而留在空间S的状态。若电机5的转速为规定转速以上(在步骤S18中为是)，则控制部40继续浓缩清洗(步骤S19)。然后，当从开始浓缩清洗起经过第二洗涤时间时(在步骤S20中为是)，控制部40使电机5停止，由此结束浓缩清洗(步骤S21)。 The control unit 40 monitors the elapsed time from the start of the concentrated cleaning by the timer 48. When the first washing time has elapsed since the start of the concentrated cleaning (YES in step S17), it is confirmed by the sensing unit 41 whether or not the current number of rotations of the motor 5 has reached the predetermined number of rotations (step S18). When the number of revolutions of the motor 5 is equal to or higher than the predetermined number of revolutions, the second rotating blade 7 is rotating at a high speed, whereby the concentrated washing liquid is circulated with a momentum that can sufficiently clean the laundry Q. On the other hand, when the number of revolutions of the motor 5 is less than the predetermined number of revolutions, the number of revolutions of the second rotary vane 7 is low. Therefore, the momentum of the concentrated washing liquid is weak, and depending on the situation, the space is left in the space S. When the number of revolutions of the motor 5 is equal to or higher than the predetermined number of revolutions (YES in step S18), the control unit 40 continues the concentration washing (step S19). Then, when the second washing time has elapsed since the start of the concentrated washing (YES in step S20), the control unit 40 stops the motor 5, thereby ending the concentrated washing (step S21).

在结束浓缩清洗后，控制部40在洗涤桶4内蓄水，直至达到前述的规定量，作为最终供水(步骤S22)。由此，相当于开始最终供水前的供水量与规定量之差的剩余的水被添加至洗涤桶4内，因此，洗涤桶4内的洗涤液中的洗涤剂的浓度低于浓缩洗涤液中的洗涤剂的浓度。然后，控制部40停止供水并开始正常清洗，通过电机5使第一旋转叶片6以及第二旋转叶片7旋转(步骤S23)。在正常清洗中，浸泡于蓄积至规定量的大量的洗涤液中的洗涤物Q被进行旋转的第一旋转叶片6搅拌，或者被通过第二旋转叶片7的旋转进行循环的通常浓度的洗涤液喷淋，由此被清洗。然后，当从开始正常清洗起经过第三洗涤时间时(在步骤S24中为是)，控制部40使电机5停止，由此结束正常清洗，因此洗涤过程完成。After the concentration washing is completed, the control unit 40 stores water in the washing tub 4 until the predetermined amount described above is reached, and the final water supply is performed (step S22). Thereby, the remaining water corresponding to the difference between the water supply amount before the final water supply and the predetermined amount is added to the washing tub 4, and therefore, the concentration of the detergent in the washing liquid in the washing tub 4 is lower than that in the concentrated washing liquid. The concentration of the detergent. Then, the control unit 40 stops the water supply and starts normal washing, and the first rotating blade 6 and the second rotating blade 7 are rotated by the motor 5 (step S23). In the normal washing, the laundry Q immersed in a large amount of the washing liquid accumulated in a predetermined amount is stirred by the rotating first rotating blade 6, or the usual concentration of the washing liquid which is circulated by the rotation of the second rotating blade 7. Sprayed and thus washed. Then, when the third washing time has elapsed since the start of the normal washing (YES in step S24), the control portion 40 stops the motor 5, thereby ending the normal washing, and thus the washing process is completed.

其中，根据第二洗涤时间的设定，在浓缩清洗继续至第二洗涤时间的情况下，有时会变成洗涤物Q被充分清洗的状态。因此，在浓缩清洗过程中的电机5的转速上升至规定转速的情况下(在步骤S18中为是)，控制部40可以在继续第二洗涤时间之前的规定时间的浓缩清洗后(在步骤S20中为是)，结束洗涤过程，而不进行最终供水(步骤S22)以及正常清洗(步骤S23以及S24)。该情况下，能谋求洗涤过程中的节水，因此，即使供水量少，通过浓缩清洗也能发挥最大限度的清洗力。However, depending on the setting of the second washing time, when the concentrated washing is continued to the second washing time, the laundry Q may be sufficiently washed. Therefore, when the number of revolutions of the motor 5 in the concentrated washing process rises to the predetermined number of revolutions (YES in step S18), the control unit 40 may perform the concentrated washing for a predetermined time before the second washing time (in step S20). In the middle, the washing process is ended without final water supply (step S22) and normal washing (steps S23 and S24). In this case, water saving during the washing process can be achieved. Therefore, even if the amount of water supplied is small, the maximum cleaning power can be exhibited by concentration washing.

需要说明的是，在完成洗涤过程时，控制部40通过排水部45进行水桶3以及洗涤桶4的排水。在排水后的漂洗过程(步骤S2)中，控制部40通过将自来水蓄积于洗涤桶4内并使第一旋转叶片6以及第二旋转叶片7旋转来产生水流，因此，洗涤桶4内的洗涤物Q通过水流被漂洗。漂洗过程可以进行多次。在完成漂洗过程时，控制部40通过排水部45进行水桶3以及洗涤桶4的排水。在排水后的脱水过程(步骤S3)中，控制部40在打开排水部45的排水阀26的状态下使洗涤桶4高速旋转。由此，洗涤物Q内的水分通过离心力而渗出，由此洗涤物Q被脱水。It should be noted that, when the washing process is completed, the control unit 40 drains the water tub 3 and the washing tub 4 through the drain portion 45. In the rinsing process after the draining (step S2), the control unit 40 generates water flow by accumulating tap water in the washing tub 4 and rotating the first rotating blade 6 and the second rotating blade 7, and therefore, washing in the washing tub 4 The substance Q is rinsed by the water flow. The rinsing process can be performed multiple times. When the rinsing process is completed, the control unit 40 performs drainage of the water tub 3 and the washing tub 4 through the drain portion 45. In the dehydration process after the draining (step S3), the control unit 40 rotates the washing tub 4 at a high speed in a state where the drain valve 26 of the drain portion 45 is opened. Thereby, the moisture in the laundry Q oozes out by the centrifugal force, whereby the laundry Q is dehydrated.

另一方面，由于洗涤桶4内的洗涤物Q的负荷量多等，洗涤物Q会成为第一旋转叶片6的阻力，由此，有时经过了第一洗涤时间的时间点下的电机5的转速不充分且未上升至规定转速。如果这样的话，第二旋转叶片7的转速也不会上升，因此，难以使浓缩洗涤液猛烈地循环并使其喷淋至洗涤物Q。因此，在经过了第一洗涤时间的时间点下的电机5的转速未上升至规定转速的情况下(在步骤S18中为否)，控制部40参照关于浓缩清洗预先设定的计数值(步骤S25)。On the other hand, since the load amount of the laundry Q in the washing tub 4 is large, the laundry Q becomes the resistance of the first rotating blade 6, and thus, the motor 5 at the time of the first washing time may be passed. The speed is not sufficient and does not rise to the specified speed. If so, the rotation speed of the second rotating blade 7 does not rise, and therefore, it is difficult to circulate the concentrated washing liquid violently and spray it onto the laundry Q. Therefore, When the number of revolutions of the motor 5 at the time when the first washing time has elapsed has not risen to the predetermined number of revolutions (NO in step S18), the control unit 40 refers to the count value set in advance for the concentrated washing (step S25). .

计数值存储于存储器47，是每当浓缩清洗结束时重置为零的值，当经过了第一洗涤时间的时间点下的电机5的转速小于规定转速时被增量(+1)。若当前的计数值小于“3”等预先设定的规定值(在步骤S25中为是)，则控制部40对当前的计数值进行增量，并且使电机5暂时停止而中断浓缩清洗，在前述的洗涤桶4内的水量未达到规定量的范围进行追加的供水(步骤S26)。就是说，在浓缩清洗过程中的电机5的转速未上升至规定转速的情况下，控制部40作为重试处理进行追加的供水。The count value is stored in the memory 47, which is a value that is reset to zero every time the concentrated cleaning is completed, and is incremented (+1) when the rotation speed of the motor 5 at the time point when the first washing time has elapsed is less than the predetermined rotation speed. If the current count value is less than a predetermined value set in advance such as "3" (YES in step S25), the control unit 40 increments the current count value and temporarily stops the motor 5 to interrupt the concentration cleaning. The water supply in the washing tub 4 described above does not reach a predetermined amount, and additional water supply is performed (step S26). In other words, when the number of revolutions of the motor 5 during the concentration washing process has not risen to the predetermined number of revolutions, the control unit 40 performs additional water supply as a retry process.

追加的供水之后，控制部40在停止供水后重新开始浓缩清洗(步骤S16)，实施步骤S17以后的处理。通过追加的供水，洗涤桶4内的水位在浓缩洗涤液中的洗涤剂的浓度不下降至所需以上的范围内上升，因此，能使洗涤物Q浮起而降低第一旋转叶片6的阻力、即电机5的负担。因此，通过使浓缩清洗过程中的电机5的转速上升至规定转速，能使第二旋转叶片7高速旋转。该情况下，能使虽然因追加的供水稀释了一些但紧接着洗涤剂就溶解成高浓度的浓缩洗涤液猛烈地循环，并使其喷淋至洗涤物Q。其结果是，即使因洗涤桶4内的洗涤物Q多等而使第一旋转叶片6的刚开始的阻力过大，也能谋求清洗力的提高。需要说明的是，在重新开始浓缩清洗后的步骤S18中，通过控制部40来确认从重新开始浓缩清洗时起经过了第一洗涤时间的时间点下的电机5的转速是否到达了规定转速。After the additional water supply, the control unit 40 restarts the concentration washing after stopping the water supply (step S16), and performs the processing in and after step S17. By the additional water supply, the water level in the washing tub 4 rises within a range in which the concentration of the detergent in the concentrated washing liquid does not fall to the above or more, so that the laundry Q can be floated to lower the resistance of the first rotating blade 6. That is, the burden of the motor 5. Therefore, the second rotor blade 7 can be rotated at a high speed by raising the number of revolutions of the motor 5 during the concentrated washing process to a predetermined number of revolutions. In this case, the concentrated washing liquid which is dissolved in a high concentration immediately after the dilution of the additional water supply can be violently circulated and sprayed to the laundry Q. As a result, even if the resistance of the first rotating blade 6 at the beginning of the first rotating blade 6 is excessively large due to the large amount of laundry Q in the washing tub 4, the cleaning force can be improved. In addition, in the step S18 after restarting the concentration washing, the control unit 40 confirms whether or not the number of revolutions of the motor 5 has reached the predetermined number of revolutions at the time when the first washing time has elapsed since the restart of the concentrated washing.

当电机5的转速在重新开始浓缩清洗后也未到达规定转速而最终计数值增加至3时(在步骤S25中为否)，控制部40强制结束浓缩清洗(步骤S21)，在最终供水(步骤S22)之后，实施正常清洗(步骤S23)。当在追加的供水后的浓缩清洗过程中的电机5的转速未上升至规定转速的情况下进一步进行追加的供水时，浓缩洗涤液会被稀释至不能算是浓缩洗涤液的通常浓度，因此，恐怕会无法得到本来的浓缩清洗的效果。因此，控制部40如此地中止浓缩清洗(步骤S21)，进行追加的供水，直至洗涤桶4内的水量达到规定量(步骤S22)，然后进行使第一旋转叶片6以及第二旋转叶片7旋转的正常清洗(步骤S23)。由此，通过由第一旋转叶片6的旋转实现的搅拌、洗涤剂溶解至通常浓度的洗涤液，能对洗涤物Q进行正常清洗。控制部40在经过第三洗涤期间之前实施正常清洗(在步骤S24中为是)，然后结束洗涤过程。When the rotation speed of the motor 5 does not reach the predetermined rotation speed after restarting the concentration cleaning and the final count value is increased to 3 (NO in step S25), the control unit 40 forcibly ends the concentration cleaning (step S21), and finally supplies the water (step After S22), normal cleaning is performed (step S23). When the additional water supply is further performed when the number of revolutions of the motor 5 in the concentrated washing process after the additional water supply is not increased to the predetermined number of revolutions, the concentrated washing liquid is diluted to a normal concentration which is not a concentrated washing liquid, and therefore, it is feared that The original concentrated cleaning effect will not be obtained. Therefore, the control unit 40 stops the concentration washing (step S21), and performs additional water supply until the amount of water in the washing tub 4 reaches a predetermined amount (step S22), and then rotates the first rotating blade 6 and the second rotating blade 7 Normal cleaning (step S23). Thereby, the laundry Q can be normally cleaned by the stirring by the rotation of the first rotary vane 6 and the detergent dissolved in the washing liquid of a normal concentration. The control section 40 performs normal washing before the third washing period (YES in step S24), and then ends the washing process.

本发明并不限定于以上实施方式的内容，在权利要求所记载的范围内可以进行各种变更。The present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the claims.

例如，洗衣机1可以是具有烘干洗涤物Q的功能的洗衣干衣机。此外，洗衣机1在前述的实施方式中是洗涤桶4的中心轴线J在上下方向延伸的立式类型，但洗涤桶4也可以配置为中心轴线J与上下方向交叉。For example, the washing machine 1 may be a washer-dryer having a function of drying the laundry Q. Further, in the foregoing embodiment, the washing machine 1 is of a vertical type in which the center axis J of the washing tub 4 extends in the up and down direction, but the washing tub 4 may be disposed such that the center axis J intersects the up and down direction.

附图标记说明Description of the reference numerals

1：洗衣机；1: washing machine;

4：洗涤桶；4: washing bucket;

4A：底部；4A: bottom;

5：电机；5: motor;

6：第一旋转叶片；6: a first rotating blade;

7：第二旋转叶片；7: a second rotating blade;

17：底壁；17: the bottom wall;

18：投入口；18: input port;

37：引导路；37: Guide the road;

38：扬水路；38: Yangshui Road;

40：控制部；40: Control Department;

41：感测部；41: a sensing unit;

43：供水部；43: Water Supply Department;

Q：洗涤物；Q: washing;

S：空间。 S: Space.

Claims

一种洗衣机，包含：A washing machine comprising:

洗涤桶，具有洗涤物的投入口、以及从下侧与所述投入口对置的底壁，容纳从所述投入口投入的洗涤物，从所述底壁侧蓄积洗涤液；a washing tub having a washing inlet and a bottom wall facing the inlet from the lower side, accommodating the laundry introduced from the inlet, and accumulating the washing liquid from the bottom wall side;

第一旋转叶片，设于所述洗涤桶的底部，通过进行旋转而对所述洗涤桶内的洗涤物进行搅拌；a first rotating blade is disposed at a bottom of the washing tub, and the washing in the washing tub is stirred by performing rotation;

引导路，在所述洗涤桶中向下侧延伸，向所述洗涤桶内的所述底壁与所述第一旋转叶片之间的空间引导洗涤剂；a guiding path extending downward in the washing tub to guide the detergent to a space between the bottom wall and the first rotating blade in the washing tub;

扬水路，设于所述洗涤桶，用于从所述空间汲取所述洗涤桶内的洗涤液并将其回送至所述洗涤桶内；a water pump, disposed in the washing tub, for taking the washing liquid in the washing tub from the space and returning it to the washing tub;

第二旋转叶片，配置于所述空间，通过以高于所述第一旋转叶片的速度进行旋转而将所述空间的洗涤液送入所述扬水路；a second rotating blade disposed in the space, the washing liquid of the space is sent to the water pumping path by rotating at a speed higher than the speed of the first rotating blade;

电机，使所述第一旋转叶片以及所述第二旋转叶片旋转；a motor that rotates the first rotating blade and the second rotating blade;

供水部，用于向所述洗涤桶内进行供水；以及a water supply unit for supplying water into the washing tub;

控制部，在向所述引导路投入洗涤剂后，进行如下浓缩清洗，即，通过所述供水部进行少于规定量的供水，由此，在所述空间生成洗涤剂溶解至规定浓度的浓缩洗涤液，然后通过所述电机使所述第一旋转叶片以及所述第二旋转叶片旋转。The control unit performs concentrated cleaning after the detergent is introduced into the guide path, that is, the water supply unit performs less than a predetermined amount of water supply, thereby dissolving the detergent in the space to a predetermined concentration. The washing liquid is then rotated by the motor to rotate the first rotating blade and the second rotating blade.
根据权利要求1所述的洗衣机，其中，The washing machine according to claim 1, wherein

还包含：感测部，对所述电机的转速进行感测，The method further includes: a sensing unit that senses a rotational speed of the motor,

在所述浓缩清洗过程中的所述电机的转速未上升至规定转速的情况下，所述控制部通过所述供水部进行追加的供水。When the number of revolutions of the motor in the concentrated washing process does not rise to a predetermined number of revolutions, the control unit performs additional water supply by the water supply unit.
根据权利要求2所述的洗衣机，其中，The washing machine according to claim 2, wherein

在所述追加的供水后的所述浓缩清洗过程中的所述电机的转速未上升至所述规定转速的情况下，所述控制部进行如下正常清洗，即，中止所述浓缩清洗，通过所述供水部进行追加的供水，直至所述洗涤桶内的水量达到所述规定量，然后通过所述电机使所述第一旋转叶片以及所述第二旋转叶片旋转。When the number of revolutions of the motor in the concentrated washing process after the additional water supply has not risen to the predetermined number of revolutions, the control unit performs normal cleaning as follows, that is, the concentration washing is stopped. The additional water supply is performed by the water supply unit until the amount of water in the washing tub reaches the predetermined amount, and then the first rotating blade and the second rotating blade are rotated by the motor.
根据权利要求3所述的洗衣机，其中，The washing machine according to claim 3, wherein

在所述浓缩清洗过程中的所述电机的转速上升至规定转速的情况下，所述控制部在继续了规定时间的所述浓缩清洗后，不进行所述正常清洗而结束洗涤过程。 When the number of revolutions of the motor in the concentrated washing process rises to a predetermined number of revolutions, the control unit ends the washing process without performing the normal washing after the concentrated washing for a predetermined period of time.