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CN108755000B - Drum washing machine and control method thereof - Google Patents

Drum washing machine and control method thereof Download PDF

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Publication number
CN108755000B
CN108755000B CN201810391018.7A CN201810391018A CN108755000B CN 108755000 B CN108755000 B CN 108755000B CN 201810391018 A CN201810391018 A CN 201810391018A CN 108755000 B CN108755000 B CN 108755000B
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China
Prior art keywords
tub
washing
water
washing machine
rotation
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CN201810391018.7A
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Chinese (zh)
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CN108755000A (en
Inventor
唐启庆
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Wuxi Little Swan Electric Co Ltd
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Wuxi Little Swan Electric Co Ltd
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Priority to CN201810391018.7A priority Critical patent/CN108755000B/en
Publication of CN108755000A publication Critical patent/CN108755000A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/04—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid solely by water jets
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention discloses a drum washing machine and a control method thereof, wherein the drum washing machine comprises: a water tub; the washing barrel can be arranged in the water containing barrel in a positive and negative rotation mode; a water intake device rotating with the tub, the water intake device being configured to scoop up the liquid in the tub and flow the liquid into the tub by gravity only when the tub is reversed; wherein, in the washing stage, the washing tub alternately rotates forward and backward, and the total time of the reverse rotation of the washing tub is longer than the total time of the forward rotation of the washing tub. The drum washing machine provided by the embodiment of the invention can fully play the role of the water taking device, and has the advantages of high water taking efficiency, good washing effect and the like.

Description

Drum washing machine and control method thereof
Technical Field
The invention relates to the technical field of electric appliance manufacturing, in particular to a drum washing machine and a control method of the drum washing machine.
Background
The drum washing machine lifts and breaks clothes to wash through the rotation of a washing barrel, a water circulation spray device is usually arranged outside the washing barrel, water in the washing barrel is pumped out of the washing barrel through a circulation pipe by using external forces such as a circulation pump and the like, and then the water is returned into the washing barrel through the spray device, so that the circulation pump is required to continuously work in order to realize the process, and the electricity consumption cost is increased.
For this reason, there is proposed a solution in which a water intake device is provided on a tub, the tub rotates, and the water intake device rotates with the tub and guides water in a tub into the tub, but the water intake device is not combined with a movement mode of the tub in each working stage of a drum washing machine, so that the water intake device cannot be fully utilized, and water intake efficiency is not ideal.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the drum washing machine which can fully play the role of the water taking device and has the advantages of high water taking efficiency, good washing effect and the like.
The invention also provides a control method of the drum washing machine.
An embodiment according to a first aspect of the present invention proposes a drum washing machine including: a water tub; the washing barrel can be arranged in the water containing barrel in a positive and negative rotation mode; a water intake device rotating with the tub, the water intake device being configured to scoop up the liquid in the tub and flow the liquid into the tub by gravity only when the tub is reversed; wherein, in the washing stage, the washing tub alternately rotates forward and backward, and the total time of the reverse rotation of the washing tub is longer than the total time of the forward rotation of the washing tub.
The drum washing machine provided by the invention can fully play the role of the water taking device, and has the advantages of high water taking efficiency, good washing effect and the like.
According to some embodiments of the invention, the time of a single reverse rotation of the tub is greater than the time of a single forward rotation of the tub during the washing stage.
Further, in the washing stage, the number of times the tub is rotated forward is the same as or different from the number of times the tub is rotated backward.
According to some embodiments of the invention, the tub is alternately rotated forward and reverse during the rinsing stage, and the total time for which the tub is rotated reverse is greater than the total time for which the tub is rotated forward.
Further, in the rinsing stage, the time of the single reverse rotation of the tub is longer than the time of the single forward rotation of the tub.
Further, in the rinsing stage, the number of times the tub is rotated forward is the same as or different from the number of times the tub is rotated backward.
According to some specific examples of the invention, the tub is only rotated forward during the dehydration stage.
According to some embodiments of the invention, the water intake device has a water intake, a flow passage, and a spray port, the spray port being in communication with the interior space of the tub, the flow passage being in communication with the water intake and the spray port; only when the water taking device is reversed along with the washing tub, the water taking port scoops the liquid in the water containing tub and enables the liquid to flow into the washing tub from the spraying port along the flow passage under the action of gravity.
Further, the water intake is arranged at one side of the flow passage in a rotation direction when the tub is reversed in a circumferential direction of the tub.
Further, the outer periphery of the flow passage is closed.
An embodiment according to a second aspect of the present invention proposes a control method of a drum washing machine including: a water tub; the washing barrel can be arranged in the water containing barrel in a positive and negative rotation mode; a water intake device rotating with the tub, the water intake device being configured to scoop up liquid in the tub and flow the liquid into the tub by gravity only when the tub is reversed, the control method comprising: and in the washing stage, controlling the washing barrel to alternately rotate forward and reverse, wherein the total time of the reverse rotation of the washing barrel is longer than the total time of the forward rotation of the washing barrel.
According to the control method of the drum washing machine, provided by the embodiment of the invention, the function of the water taking device can be fully exerted, and the control method has the advantages of high water taking efficiency, good washing effect and the like.
According to some embodiments of the invention, the time to control the single reverse rotation of the tub is greater than the time to control the single forward rotation of the tub during the washing stage.
Further, in the washing stage, the number of times the tub is rotated forward is controlled to be the same as or different from the number of times the tub is rotated backward.
According to some embodiments of the invention, the tub is controlled to alternately rotate forward and reverse during the rinsing stage, and the total time for which the tub rotates reverse is greater than the total time for which the tub rotates forward.
Further, in the rinsing stage, the time for controlling the single reverse rotation of the tub is longer than the time for controlling the single forward rotation of the tub.
Further, in the rinsing stage, the number of times the tub is controlled to be rotated forward is the same as or different from the number of times the tub is rotated backward.
According to some embodiments of the invention, the tub is controlled to rotate only in a forward direction during the dehydration stage.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a partial structural schematic view of a drum washing machine according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a tub of a drum washing machine according to an embodiment of the present invention.
Fig. 3 is an exploded view of a tub of a drum washing machine according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a water intake device of a drum washing machine according to an embodiment of the present invention.
Fig. 5 is a partial cross-sectional view of a water intake device of a drum washing machine according to an embodiment of the present invention.
Fig. 6 is a schematic view of a control method of a drum washing machine according to an embodiment of the present invention.
Reference numerals:
a drum washing machine 1,
A water tub 100,
A washing tub 200, a tub ring 210, a tub bottom 220, a laundry inlet 230,
Water intake device 300, water intake port 310, flow channel 320, spray port 330,
A water outlet disc 410, a spray pipe 411, a water guiding arm 420, a water scooping spoon 430, a circumferential limit groove 431,
A support 500.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "inner," "outer," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Hereinafter, a drum washing machine 1 according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 5, the drum washing machine 1 according to an embodiment of the present invention includes a tub 100, a tub 200, and a water intake device 300.
The tub 200 is rotatably provided in the tub 100, and the water intake device 300 rotates with the tub 200. It should be understood herein that the forward and reverse rotation is relatively speaking, that is, the tub 200 is positioned to rotate in one of the clockwise and counterclockwise directions while the tub 200 is positioned to rotate in the other of the clockwise and counterclockwise directions.
The water intake device 300 is configured to scoop up the liquid in the tub 100 only when the tub 200 is reversed and allow the liquid to flow into the tub 200 by gravity. In other words, when the tub 200 is reversed, the water intake device 300 scoops up the liquid in the tub 100 and causes the liquid to flow into the tub 200 by gravity during rotation with the tub 200; when the tub 200 is rotated in the forward direction, the water intake device 300 does not scoop up the liquid in the tub 100 during rotation with the tub 200. That is, only when the tub 200 is reversed, the water intake device 300 scoops up the liquid in the tub 100 and introduces the liquid into the tub 200.
Specifically, the water intake device 300 has a water intake port 310, a flow passage 320, and a spray port 330, the water intake port 310 communicates with a space between the tub 100 and the tub 200 or with an inner space of the tub 200, the spray port 330 communicates with the inner space of the tub 200, and the flow passage 320 communicates with the water intake port 310 and the spray port 330. The water intake 310 is disposed at one side of the flow path 320 in the circumferential direction of the tub 200 in the rotational direction when the tub 200 is rotated reversely, whereby the water intake device 300 scoops up water when the tub 200 is rotated in one direction (reverse rotation), and the water intake device 300 does not scoop up water when the tub 200 is rotated in the other direction (forward rotation).
For example, as shown in fig. 1, in the view of fig. 1, the water intake 310 is located at one side of the flow path 320 in a clockwise direction, and the tub 200 is rotated in a reverse direction (the rotation direction is B), and at this time, the water intake 310 scoops up the liquid in the tub 100 (may be the liquid between the tub 100 and the tub 200 or the liquid in the tub 200) and causes the liquid to flow into the tub 200 from the shower port 330 along the flow path 320 by gravity; when the tub 200 rotates counterclockwise (the rotation direction is a), the water intake 310 does not scoop water.
The operation of the drum washing machine 1 according to the embodiment of the present invention is described as follows.
When laundry is loaded in the tub 200 and the drum washing machine 1 is operated to wash laundry, wash water in the tub 200 flows out between the tub 100 and the tub 200, wherein wash water in the tub 200 may flow between the tub 100 and the tub 200 through a tub opening of the tub 200 or may flow between the tub 100 and the tub 200 through a water outlet hole on a sidewall of the tub 200.
In the washing stage of the tub 200, the forward rotation and the reverse rotation are alternately performed, the water intake device 300 rotates along with the tub 200 in the process of the reverse rotation of the tub 200, the water intake device 300 is driven by the power of the tub 200, when the water intake device 300 rotates, after the water intake 310 is immersed into the washing water in the tub 200 or the washing water between the tub 100 and the tub 200, the water intake 310 scoops the washing water in the tub 100, and as the water intake device 300 continues to rotate, the scooped washing water is guided to the spraying port 330 along the flow channel 320 under the action of gravity and returns to the tub 200 through the spraying port 330, thereby shortening the infiltration time of the laundry, and improving the utilization rate, the washing uniformity, the washing degree and the rinsing efficiency of the detergent.
Further, the periphery of the flow channel 320 is closed, i.e. the flow channel 320 has a closed cross section, and it should be understood by those skilled in the art that the closed cross section of the flow channel 320 means that the flow channel 320 is indirectly communicated with the outside through the water intake 310 and the spray opening 330 only, whereas the flow channel 320 itself is not directly communicated with the outside, i.e. the liquid entering the flow channel 320 from the water intake 310 only flows out through the spray opening 330 and is not spilled during the flowing process in the flow channel 320.
According to the drum washing machine 1 of the embodiment of the invention, the water taking device 300 is arranged on the washing tub 200, and the water taking device 300 rotates along with the washing tub 200, so that the water taking device 300 can be driven by the power of the washing tub 200, the circulating spraying of washing water can be realized by utilizing the action of gravity, and the water taking device 300 is driven without arranging an additional power device such as a circulating pump and the like, thereby reducing the electricity consumption cost.
Further, the water taking device 300 scoops water and guides the scooped water into the tub 200 only when the tub 200 is reversed, thereby enabling more flexible and various control in combination with the operation of the drum washing machine 1.
In addition, as shown in fig. 3, the flow channel 320 of the water intake device 300 has a closed cross section, and the washing water can not be sprayed out from the flow channel 320 in the process that the washing water flows to the spraying port 330 along the water intake 310, so that on one hand, the water amount sprayed from the spraying port 330 can be ensured, on the other hand, the spraying pressure can be ensured, and further, the spraying effect is improved.
Therefore, the drum washing machine 1 according to the embodiment of the present invention has the advantages of low electricity consumption cost, good spraying effect, etc.
Hereinafter, a drum washing machine 1 according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 5, the drum washing machine 1 according to an embodiment of the present invention includes a tub 100, a tub 200, and a water intake device 300.
In some specific examples of the present invention, as shown in fig. 2 and 3, the tub 200 includes a tub rim 210 and a tub bottom 220.
The tub bottom 220 is mounted on the tub ring 210, one end of the tub ring 210 is opened to form a laundry putting opening 230, the other end of the tub ring 210 is covered by the tub bottom 220, and the water intake device 300 is abutted with the tub bottom 220. When the tub 200 rotates, the water intake device 300 rotates along with the tub bottom 220 of the tub 200, and the rotation axis of the water intake device 300 coincides with the rotation axis of the tub 200, so that the water intake 310 and the spray opening 330 of the water intake device 300 change in the vertical direction in the process of reversing along with the tub 200, thereby scooping water and guiding water by using gravity, and further, circulating spray is realized without additional power.
Further, as shown in fig. 1 to 3, in order to further facilitate scooping of water by the water intake 310, guiding of water by the flow passage 320 by gravity and spraying of the spray opening 330 into the tub 200, the water intake 310 is located at the outer periphery of the tub bottom 220, the spray opening 330 is located at the center of the tub bottom 220, and the flow passage 320 extends in the radial direction of the tub bottom 220. The central axis of the spray port 330 coincides with the central axis of the tub bottom 220, and the opening of the spray port 330 is disposed inward in the axial direction of the tub bottom 220. The central axis of the water intake 310 is perpendicular to the central axis of the spray port 330, and the opening of the water intake 310 is disposed inward in the radial direction of the tub bottom 220.
Further, as shown in fig. 1 to 3, the water intake 310 is provided in plurality and equally spaced along the circumference of the tub bottom 220. The flow channels 320 are multiple, one ends of the flow channels 320 are communicated with the spraying ports 330, and the other ends of the flow channels 320 are respectively communicated with the water intake ports 310. That is, one spray port 330 is provided, one end of each flow path 320 is communicated with the spray port 330, and the other end of each flow path 320 is communicated with one water intake 310, and the water intake 310 is disposed at one side of the flow path 320 in the reverse direction of the tub 200. Therefore, continuous scooping and continuous water guiding can be realized by utilizing the water intake ports 310 and the flow channels 320, water is continuously supplied to the spraying ports 330, the spraying continuity and the spraying water quantity are improved, and the spraying effect is further improved.
In some specific examples of the present invention, as shown in fig. 1 and 2, the drum washing machine 1 further includes a supporting frame 500.
The support 500 is rotatably coupled to the tub 100, and the support 500 is mounted on the tub ring 210 and located outside the tub bottom 220 for driving the drum 200 to rotate. The water intake device 300 is installed between the tub bottom 220 and the support 500, and the water intake device 300 is adapted to be fixed to the tub ring 210 and/or the support 500 by fasteners (e.g., bolts, screws). The tub 100 and the tub 200 are thus connected by the support 500, which serves to support the tub 200 and to realize the rotatable tub 200 with respect to the tub 100, and to realize the mounting and positioning of the water intake device 300, i.e., the support 500, the water intake device 300, and the tub 200 are rotated in synchronization.
Further, the water taking device 300 is provided with a circumferential limit groove 431, at least a part of the supporting frame 500 is matched in the circumferential limit groove 431, so that the supporting frame 500 is limited by the inner wall of the circumferential limit groove 431, the supporting frame 500 and the water taking device 300 are prevented from rotating relatively, and the rotation of the washing tub 200 and the circulating spraying stability of the water taking device 300 are improved.
In some embodiments of the present invention, as shown in FIG. 4, the water intake device 300 includes a water outlet tray 410, a plurality of water guide arms 420, and a plurality of scoops 430.
The water outlet tray 410 has a shower pipe 411 penetrating the tub bottom 220 of the tub 200, and the shower inlet 330 is provided on the shower pipe 411. The flow channels 320 are disposed in each of the water guide arms 420, and one ends of the water guide arms 420 are connected to the water outlet tray 410 and are disposed at equal intervals along the circumferential direction of the water outlet tray 410. Each water scooping scoop 430 is provided with a water intake 310, and a plurality of water scooping scoops 430 are respectively connected to the other ends of a plurality of water guiding arms 420. For example, the water guiding arm 420 and the water scooping scoop 430 are three respectively. The structure of the support frame 500 is adapted to the structure of the water intake device 300 so as to press and position the water intake device 300 on the tub bottom 220 of the tub 200. Each water scooping spoon 430 is provided with a circumferential limiting groove 431, and the end parts of the supporting frames 500 are respectively matched in the circumferential limiting grooves 431 of the plurality of water scooping spoons 430, so that the water taking device 300 and the supporting frames 500 are positioned in the circumferential direction of the washing tub 200.
Specifically, when the water intake device 300 rotates reversely with the tub 200, and one of the water guide arms 420 rotates downward and the water intake 310 of the scooping scoop 430 is immersed in water, water enters the flow channel 320 from the water intake 310, and as the water intake device 300 continues to rotate, the water guide arms 420 lift up, and the water reaches the spray pipe 411 of the water outlet tray 410 along the flow channel 320, and then is sprayed into the tub 200 from the spray port 330, and the water guide arms 420 circulate and reciprocate, so that the circulation of water inside and outside the tub 200 is realized, and the soaking time of clothes is shortened.
Therefore, the water outside the tub 200 can be taken into the tub 200 without additional power by using the rotation power of the tub 200 itself and the gravity of the water, thereby improving the utilization rate of the detergent, the uniformity of washing, the degree of washing and the rinsing efficiency, and saving energy consumption. In addition, since the spray opening 330 is inside the tub 200, a spray effect and a spray visual effect are further improved.
Alternatively, as shown in fig. 2 to 4, the scooping spoon 430 and the water outlet tray 410 are staggered in the axial direction of the tub 200, the scooping spoon 430 is more adjacent to the tub 100 in the axial direction of the tub 200 than the water outlet tray 410, and the water guiding arm 420 is formed with corresponding bends to connect the water outlet tray 410 and the scooping spoon 430. This allows the scoop 430 to extend outwardly and be offset from the outlet tray 410 and a portion of the guide arm 420 in a vertical plane, thereby facilitating scooping of water by the scoop 430.
In some specific examples of the present invention, as shown in fig. 4, the inner side surface of the water scoop 430 in the radial direction of the tub 200 is configured to be inclined toward the radial outside, and the water intake 310 is provided on the inner side surface of the water scoop 430, whereby the water intake 310 can be inclined in the circumferential direction of the tub 200 in a direction away from the water guide arm 420 where it is located. Specifically, when the scoop 430 is turned to the lowermost position, the intake 310 thereon is disposed obliquely with respect to the vertical direction and the horizontal direction, i.e., toward the upper and away directions from the water guiding arm 420. In this way, when the scoop 430 is rotated in the lowermost direction, wash water in the tub 100 can immediately enter the water intake device 300 through the water intake 310, thereby further facilitating water intake.
Alternatively, as shown in fig. 1 to 4, the outer side of the scoop 430 in the radial direction of the tub 200 is constructed in an arc shape to be shape-fitted with the inner circumferential surface of the tub 200, and the arc-shaped surface of the scoop 430 is closely attached to the inner circumferential surface of the tub ring 210, forming the water intake device 300 and the tub 200 as a unit, and reducing the axial length of the unit.
In some embodiments of the present invention, as shown in fig. 6, one complete operation of the drum washing machine 1 includes a washing stage, a rinsing stage, and a dehydrating stage.
Wherein, in the washing stage, the tub 200 alternately performs forward rotation and reverse rotation, for example, operates in a manner of forward rotation-reverse rotation-forward rotation-reverse rotation … …, the total time of reverse rotation of the tub 200 is greater than the total time of forward rotation of the tub 200, specifically, the time of single forward rotation of the tub 200 is xt1, the time of single reverse rotation of the tub 200 is xt2, and the sum of xt2 is greater than the sum of xt 1.
In the related art, in the drum washing machine with the water taking device, the time of single forward rotation and the time of single reverse rotation of the washing drum are the same in the washing stage, so that the total time of forward rotation and the total time of reverse rotation of the washing drum are the same in the whole washing stage, and water cannot be fully taken and sprayed.
According to the drum washing machine 1 and the control method thereof of the embodiment of the present invention, since the tub 200 is sprayed with water only in the reverse rotation, the total time of the reverse rotation of the tub 200 is made longer than the total time of the forward rotation of the tub 200 in the washing stage, so that the water spray function of the water taking device 300 can be sufficiently exerted, and thus the efficiency of the water taking device 300 can be improved, to improve the washing effect.
Further, in the washing stage, the time xt2 of the single reverse rotation of the tub 200 is greater than the time xt1 of the single forward rotation of the tub 200, whereby not only the efficiency of the water intake device 300 can be improved, but also the washing force of laundry in the entire washing stage can be made more uniform.
Alternatively, in the washing stage, the number of times the tub 200 is rotated forward is the same as the number of times the tub 200 is rotated backward, i.e., if the tub 200 starts to rotate forward, the reverse is ended, and if the tub 200 starts to rotate backward, the forward is ended. Of course, the number of times the tub 200 is rotated forward and the number of times the tub 200 is rotated backward may be different, i.e., if the tub 200 is rotated forward, and if the tub 200 is rotated backward, the tub 200 is rotated backward. Regardless of whether the number of times the tub 200 is rotated forward and the number of times the tub 200 is rotated backward, the total time for which the tub 200 is rotated backward is greater than the total time for which the tub 200 is rotated forward throughout the washing stage.
In some embodiments of the present invention, as shown in fig. 6, the tub 200 alternately performs forward rotation and reverse rotation, for example, operates in a forward rotation-reverse rotation-forward rotation-reverse rotation … … manner, and the total time of reverse rotation of the tub 200 is greater than the total time of forward rotation of the tub 200, specifically, the time of single forward rotation of the tub 200 is pt1, the time of single reverse rotation of the tub 200 is pt2, and the sum of pt2 is greater than the sum of pt 1.
In the related art, in the rinsing stage, the time of single forward rotation and the time of single reverse rotation of the washing barrel are the same, so that the total time of forward rotation and the total time of reverse rotation of the washing barrel are the same in the whole rinsing stage, and water cannot be fully taken and sprayed.
According to the drum washing machine 1 and the control method thereof of the embodiment of the invention, the total time of the reverse rotation of the tub 200 is longer than the total time of the forward rotation of the tub 200 in the rinsing stage, so that the water taking spraying function of the water taking device 300 can be fully exerted, and the efficiency of the water taking device 300 can be further improved, thereby improving the washing effect.
Further, in the rinsing stage, the time pt2 of the single reverse rotation of the tub 200 is greater than the time pt1 of the single forward rotation of the tub 200, whereby not only the efficiency of the water intake device 300 can be improved, but also the rinsing force on the laundry in the entire rinsing stage can be made more uniform.
Alternatively, in the rinsing stage, the number of times the tub 200 is rotated forward is the same as the number of times the tub 200 is rotated backward, i.e., if the tub 200 starts to rotate forward, the reverse is ended, and if the tub 200 starts to rotate backward, the forward is ended. Of course, the number of times the tub 200 is rotated forward and the number of times the tub 200 is rotated backward may be different, i.e., if the tub 200 is rotated forward, and if the tub 200 is rotated backward, the tub 200 is rotated backward. Regardless of whether the number of times the tub 200 is rotated forward and the number of times the tub 200 is rotated backward, the total time of the tub 200 being rotated backward is greater than the total time of the tub 200 being rotated forward throughout the rinsing stage.
In some embodiments of the present invention, as shown in fig. 6, the tub 200 is only rotated forward during the dehydration stage, and it is understood herein that "only rotated forward" means that the tub 200 is only rotated forward and not rotated backward during the dehydration stage, but of course, there may be a case where the tub 200 is stopped during the dehydration stage. Since abnormal sound and vibration are generated when the air enters the water intake device 300 during the dehydration stage, such as the reverse rotation of the tub 200, in the embodiment of the present invention, by controlling the tub 200 to be rotated only in the forward direction for the entire dehydration time tt, vibration and noise during the dehydration stage are reduced.
Other constructions and operations of the drum washing machine 1 according to the embodiment of the present invention are known to those skilled in the art, and will not be described in detail herein.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (15)

1. A drum washing machine, comprising:
a water tub;
the washing barrel can be arranged in the water containing barrel in a positive and negative rotation mode;
a water intake device rotating with the tub, the water intake device being configured to scoop up the liquid in the tub and flow the liquid into the tub by gravity only when the tub is reversed;
wherein, in the washing stage, the washing tub alternately rotates forward and backward, the total time of the washing tub backward rotation is longer than the total time of the washing tub forward rotation, and in the washing stage, the number of times of the washing tub forward rotation is the same as or different from the number of times of the washing tub backward rotation.
2. The drum type washing machine as claimed in claim 1, wherein a time of a single reverse rotation of the tub is longer than a time of a single forward rotation of the tub in the washing stage.
3. The drum type washing machine as claimed in claim 1, wherein the tub alternately rotates forward and reverse during the rinsing stage, and a total time for which the tub rotates reverse is greater than a total time for which the tub rotates forward.
4. A drum washing machine as claimed in claim 3, wherein a time of a single reverse rotation of the tub is longer than a time of a single forward rotation of the tub in the rinsing stage.
5. A drum washing machine as claimed in claim 3, wherein the number of times the tub is rotated forward is the same as or different from the number of times the tub is rotated backward in the rinsing stage.
6. The drum type washing machine as claimed in claim 1, wherein the tub is rotated only in a forward direction during the dehydrating stage.
7. The drum washing machine as claimed in any one of claims 1 to 6, wherein the water intake device has a water intake, a flow passage and a spray port, the spray port is communicated with an inner space of the tub, and the flow passage is communicated with the water intake and the spray port;
only when the water taking device is reversed along with the washing tub, the water taking port scoops the liquid in the water containing tub and enables the liquid to flow into the washing tub from the spraying port along the flow passage under the action of gravity.
8. The drum washing machine as claimed in claim 7, wherein the water intake is disposed at one side of the flow passage in a rotation direction when the tub is reversed in a circumferential direction of the tub.
9. The drum washing machine as claimed in claim 7, wherein the outer circumference of the flow passage is closed.
10. A control method of a drum washing machine, the drum washing machine comprising:
a water tub;
the washing barrel can be arranged in the water containing barrel in a positive and negative rotation mode;
a water taking device rotating with the tub, the water taking device being configured to scoop up the liquid in the tub and flow the liquid into the tub by gravity only when the tub is reversed,
the control method comprises the following steps:
and in the washing stage, controlling the washing tub to alternately rotate forward and reverse, wherein the total time of the reverse rotation of the washing tub is longer than the total time of the forward rotation of the washing tub, and in the washing stage, controlling the number of times of the forward rotation of the washing tub to be the same as or different from the number of times of the reverse rotation of the washing tub.
11. The control method of a drum washing machine as claimed in claim 10, wherein a time for controlling the single reverse rotation of the tub is longer than a time for the single forward rotation of the tub in the washing stage.
12. The control method of a drum washing machine as claimed in claim 10, wherein the tub is controlled to alternately rotate forward and reverse in a rinsing stage, and a total time for which the tub rotates reverse is greater than a total time for which the tub rotates forward.
13. The control method of the drum washing machine as claimed in claim 12, wherein a time for controlling the single reverse rotation of the tub is longer than a time for the single forward rotation of the tub in the rinsing stage.
14. The control method of the drum washing machine as claimed in claim 12, wherein the number of times the tub is rotated forward is controlled to be the same as or different from the number of times the tub is rotated backward in the rinsing stage.
15. A control method of a drum washing machine as claimed in any one of claims 10 to 14, wherein the tub is controlled to rotate only in a normal direction during a dehydrating stage.
CN201810391018.7A 2018-04-27 2018-04-27 Drum washing machine and control method thereof Active CN108755000B (en)

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CN102482833A (en) * 2009-08-24 2012-05-30 株式会社东芝 Drum type washing machine
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CN107245850A (en) * 2017-07-19 2017-10-13 无锡小天鹅通用电器有限公司 Roller washing machine and the laundry tub assembly for roller washing machine
CN107385803A (en) * 2017-07-19 2017-11-24 无锡小天鹅通用电器有限公司 Roller washing machine and the laundry tub assembly for roller washing machine
CN107503087A (en) * 2017-07-19 2017-12-22 无锡小天鹅通用电器有限公司 Roller washing machine and the laundry tub assembly for roller washing machine
CN107503086A (en) * 2017-07-19 2017-12-22 无锡小天鹅通用电器有限公司 Roller washing machine and the laundry tub assembly for roller washing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005304661A (en) * 2004-04-20 2005-11-04 Hitachi Home & Life Solutions Inc Electric washing machine
CN102482833A (en) * 2009-08-24 2012-05-30 株式会社东芝 Drum type washing machine
CN104018313A (en) * 2013-02-28 2014-09-03 海尔集团公司 Control method of washing machine and washing machine
CN104109962A (en) * 2013-04-17 2014-10-22 海尔集团公司 Washing method and washing machine using same
CN107245849A (en) * 2017-07-19 2017-10-13 无锡小天鹅通用电器有限公司 Roller washing machine and the laundry tub assembly for roller washing machine
CN107245850A (en) * 2017-07-19 2017-10-13 无锡小天鹅通用电器有限公司 Roller washing machine and the laundry tub assembly for roller washing machine
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