CN109957938B - Washing machine and drainage system thereof - Google Patents
Washing machine and drainage system thereof Download PDFInfo
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- CN109957938B CN109957938B CN201711421585.4A CN201711421585A CN109957938B CN 109957938 B CN109957938 B CN 109957938B CN 201711421585 A CN201711421585 A CN 201711421585A CN 109957938 B CN109957938 B CN 109957938B
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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
- 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
- D06F39/083—Liquid discharge or recirculation arrangements
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Abstract
The invention relates to the field of washing machines, in particular to a washing machine drainage system and a washing machine thereof. The drainage system comprises a water inlet, a first water outlet, a second water outlet and a drainage mode switching unit arranged between the water inlet and the second water outlet, wherein the first water outlet is arranged on the drainage mode switching unit, and the drainage mode switching unit is arranged to be capable of switching the drainage mode of the drainage system into an upper drainage mode or a lower drainage mode. Preferably, drainage mode switching unit includes first drainage module and the second drainage module of following the drainage direction setting, and first drainage module includes first drainage cavity, sets up the impeller in it, and the second drainage module includes second drainage cavity and sets up the normal close valve block in it, first drainage cavity and second drainage cavity intercommunication. The impeller rotates to enable the washing water to be discharged from the first water outlet to achieve upper water discharge, and the valve plate is opened to enable the washing water to be discharged from the second water outlet to achieve lower water discharge.
Description
Technical Field
The invention relates to the field of washing machines, in particular to a washing machine and a drainage system thereof.
Background
The washing machine is required to discharge dirty washing water in time during or after the completion of a washing function. The drainage mode of the current washing machine is mostly single upper drainage or lower drainage, which causes two problems for users: on one hand, when selecting the washing machine, a user can only select to purchase the washing machine with an upper drainage mode or a lower drainage mode according to the existing decoration scheme; on the other hand, in the case that the washing machine has been purchased, the drainage pattern cannot be changed at a later stage, that is, when a user needs to change a decoration scheme or move home, the current washing machine may affect the use performance thereof due to the fixed drainage pattern.
As an improvement, a washing machine having one drainage method is generally adjusted to have another or both drainage methods. If a user adjusts the original upper drainage mode into the lower drainage mode by lengthening the drainage pipe, the adjusted lower drainage mode easily causes the siphonage phenomenon of the washing machine in the drainage process, so that the water in the washing machine is continuously drained, and the washing is influenced; in addition, the increase of the anti-siphon structure for preventing siphon easily causes the washing water to flow back, pollutes the washed clothes and affects the washing effect.
For example, patent (CN 202543656U) discloses an environment-friendly washing machine with an upper drain, a control device, a water pump, an upper drain and a lower drain are arranged on a washing machine body. The water pump is characterized in that the upper drainage port is connected with an upper drainage channel, the lower drainage port is connected with a lower drainage channel, a first valve for controlling the on-off of the lower drainage channel is arranged on the lower drainage channel, a second valve for controlling the on-off of the upper drainage channel is arranged on the upper drainage channel, the water pump controls the operation of the upper drainage channel, and the control device controls the actions of the water pump, the first valve and the second valve. In the upper drainage mode, the control device controls the second valve to be opened and controls the water pump to be started, and wastewater is driven by the water pump to flow through the upper drainage channel from the upper drainage port and is discharged; in the lower drainage mode, the control device controls the first valve to be opened, and the wastewater naturally flows through the lower drainage channel from the lower drainage port and is discharged. It can be seen that in the scheme, the upper drainage pipeline and the lower drainage pipeline belong to a completely independent parallel connection relationship without any overlapping, which affects the compactness of the whole structure of the washing machine, and if the scheme is used as an improved scheme of a later user, the modification difficulty is higher.
For example, a patent (CN 201056640Y) discloses a washing machine with double water draining function, the middle part of the downcomer on the washing machine is tied up by a three-way pipe to be connected with a hose of a water pump, and the outlet of the downcomer is tied up to be connected with a valve. Under the lower drainage mode, after washing is finished, the valve is opened, and washing water flows through the three-way pipe from the sewer pipe and then flows out of the valve; under the mode of upper drainage, after washing is finished, the water pump rotates, and flows through the three-way pipe from the sewer pipe and then flows out from the water outlet of the hose. It can be seen that in this solution, it is inconvenient to manually open the valve to perform the drain operation during the drain operation.
For example, patent (CN 2550399Y) discloses a double drain pipe washing machine, wherein a water outlet at the bottom of an outer cylinder of the washing machine is connected with a tee joint, inlets of a water pump and a drain electromagnetic valve are respectively connected with the other two ends of the tee joint, an outlet of the water pump is connected with an upper drain pipe, and an outlet of the drain electromagnetic valve is connected with a lower drain pipe. In the lower drainage mode, after washing is finished, the drainage electromagnetic valve is opened, washing water flows through the tee joint from the water outlet, then flows through the drainage electromagnetic valve and finally flows out from the lower drainage pipe; under the mode of upper drainage, after washing is finished, the water pump rotates, washing water flows through the tee joint from the water outlet, then flows through the water pump, and finally flows out from the upper drainage pipe. It can be seen that, in the scheme, the drainage pump and the drainage electromagnetic valve are respectively communicated through the tee joint to form the upper drainage pipeline and the lower drainage pipeline, although the electromagnetic valve can be automatically opened and closed, the upper drainage pipeline and the lower drainage pipeline are relatively independent, and the compactness of the whole structure of the washing machine is influenced to a certain extent.
Accordingly, there is a need in the art for a new drainage system that addresses the above-mentioned problems. .
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that the drainage mode of the drainage system of the washing machine is single at present and the compactness of the whole structure of the washing machine is affected by the independent simple superposition mode between the upper drainage mode and the lower drainage mode although the drainage mode is not single, the invention provides the drainage system of the washing machine, wherein the drainage system comprises a water inlet, a water outlet group and a drainage mode switching unit arranged between the water inlet and the water outlet group, the water outlet group comprises a first water outlet and a second water outlet, and the drainage mode switching unit is arranged to be capable of selectively switching the drainage mode of the drainage system into the upper drainage mode of draining water from the first water outlet or the lower drainage mode of draining water from the second water outlet.
In a preferred technical solution of the above-mentioned drainage system, the drainage manner switching unit includes a first drainage module and a second drainage module, the first water outlet is communicated with the first drainage module, the second water outlet is communicated with the second drainage module, and the first drainage module and the second drainage module are communicated with each other and cooperate with each other to selectively switch the drainage manner of the drainage system to an upper drainage manner or a lower drainage manner.
In the above-mentioned drainage system's preferred technical scheme, first drainage module along the drainage direction set up in the upper reaches of second drainage module, first drainage module include first drainage cavity and set up in impeller in the first drainage cavity, the second drainage module include the second drainage cavity and set up in the normal close valve block in the second drainage cavity, first drainage cavity with the second drainage cavity can be with the help of the normal close valve block selectively communicates.
In the preferable technical scheme of the above drainage system, the drainage mode switching unit further includes a driving module, the driving module is connected with the impeller so as to drive the impeller to rotate, and the driving module is further connected with the valve plate so as to drive the valve plate to open.
In a preferred technical scheme of the above drainage system, the driving module includes a first driving motor and a second driving motor, the first driving motor is connected with the impeller, and the second driving motor is connected with the valve plate.
In the preferable technical scheme of the drainage system, the driving module comprises a driving motor and a transmission mechanism, and the driving motor can be connected with the valve plate or the impeller through the transmission mechanism.
In a preferred technical solution of the above drainage system, the drainage system further includes a control unit, and the control unit is electrically connected to the first driving motor and the second driving motor respectively so as to make the impeller and the valve plate cooperate with each other to selectively switch the drainage mode of the drainage system to an upper drainage mode or a lower drainage mode.
In a preferred embodiment of the above drainage system, the control unit is configured to operate the second drive motor to drive the normally closed valve sheet to open and to deactivate the first drive motor so that the impeller does not act to switch the drainage mode of the drainage system to the lower drainage mode.
In a preferred embodiment of the above drainage system, the control unit is further configured to operate the first drive motor so that the impeller rotates and to operate the second drive motor so that the normally closed valve sheet remains closed to switch the drainage mode of the drainage system to the upper drainage mode.
In addition, the invention also provides a washing machine, which comprises the drainage system of the washing machine in any one of the technical schemes.
The technical scheme of the invention can be understood by those skilled in the art that the washing machine can be freely switched between the upper drainage mode and the lower drainage mode by the arrangement of the drainage mode switching unit and the arrangement of the water outlet group comprising the first water outlet and the second water outlet, so that the washing machine can realize the upper drainage from the first water outlet or realize the lower drainage from the second water outlet, a user can conveniently replace the drainage mode of the washing machine when the drainage mode of the washing machine needs to be changed due to the change of a decoration scheme or the removal of the home, and the user experience is optimized. Compared with the mode that the upper water discharge pipeline and the lower water discharge pipeline are simply overlapped, the arrangement of the water discharge mode switching unit improves the compactness of the whole structure of the washing machine to a certain extent.
In a preferred technical solution of the present invention, the drainage mode switching unit includes a first drainage module and a second drainage module that are communicated with each other and cooperate with each other, the first drainage module is disposed at an upstream of the second drainage module along a drainage direction, the first drainage module includes a first drainage chamber and an impeller disposed in the first drainage chamber, the second drainage module includes a second drainage chamber and a normally closed valve plate disposed in the second drainage chamber, the impeller is driven by a first driving motor, the valve plate is driven by a second driving motor, and the drainage system further includes a control unit that controls cooperation of the first driving motor and the second driving motor to implement upper drainage or lower drainage of the washing machine. Under the upper drainage mode, the control unit controls the first driving motor to rotate so that the first driving motor drives the impeller to rotate, and the second driving motor does not operate so that the normally closed valve plate is kept closed, and washing water flows into the first drainage chamber from the water inlet and is discharged from the first water outlet under the driving of the impeller. Under the drainage mode, the control unit controls the second driving motor to rotate so that the second driving motor drives the normally closed valve plate to be opened, and the first driving motor does not operate so as to enable the impeller to be not operated, and washing water firstly flows into the first drainage cavity from the water inlet, then flows into the second drainage cavity and finally flows out of the second water outlet under the action of gravity.
Drawings
The drain system of the present invention will be described in conjunction with a side-opening drum washing machine with reference to the accompanying drawings. In the drawings:
fig. 1 is a schematic structural view of a drum washing machine;
FIG. 2 is a schematic structural view of a drain system of a drum washing machine according to an embodiment of the present invention;
fig. 3 isbase:Sub>A schematic sectional view alongbase:Sub>A-base:Sub>A of fig. 2.
List of reference numerals:
1. a door cover; 2. a box body; 3. an outer cylinder; 4. an inner barrel; 51. a first connecting pipe; 52. A second connecting pipe; 53. a third connecting pipe; 54. a pipe joint; 6. a drainage system; 61. a water inlet; 62. a drainage mode switching unit; 63. a first water outlet; 64. a second water outlet; 621. a first drainage chamber; 622. an impeller; 623. a second drainage chamber; 624. a valve plate; 625. a first drive motor; 626. a second drive motor; 7. a drain pipe; 81. a filtration chamber; 82. a filter chamber wash water inlet; 83. a filter screen; 84. an outlet of the filter screen; 85. a filter chamber cover; 9. a floor drain.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present invention is described by taking a side-opening drum washing machine as an example, the washing machine to which the drainage system of the present invention is applied may be a pulsator washing machine, a top-opening drum washing machine, etc., and those skilled in the art may adjust the drainage system as needed to adapt to specific application occasions, and the adjusted technical solution still falls into the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "fixed" and "connected" are to be construed broadly, and may for example be non-detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 3, fig. 1 isbase:Sub>A schematic structural view ofbase:Sub>A drum washing machine, fig. 2 isbase:Sub>A schematic structural view ofbase:Sub>A drainage system ofbase:Sub>A drum washing machine according to an embodiment of the present invention, and fig. 3 isbase:Sub>A schematic sectional view of fig. 2 alongbase:Sub>A-base:Sub>A direction. As shown in fig. 1, the washing machine includes a cabinet 2, an outer tub 3 fixed inside the cabinet 2, and an inner tub 4 provided inside the outer tub 3 and capable of rotating, a door 1 is pivotally provided on a left side panel of the cabinet 2, a bottom of the outer tub 3 is communicated with a drain system 6 through a first connection pipe 51, the drain system 6 is communicated with one ends of a second connection pipe 52 and a third connection pipe 53, respectively, and the other ends of the second connection pipe 52 and the third connection pipe 53 are communicated with a pipe joint 54 provided at an upper portion and a lower portion of a right side panel of the cabinet 2, respectively. In the upper drainage mode, the drainage pipe 7 is communicated with a pipe joint 54 at the upper part of the right side panel of the box body 2; in the lower drainage mode, the pipe joint 54 at the lower part of the right panel of the box body 2, and the outlet end of the drainage pipe 7 are inserted into the floor drain 9.
Specifically, as shown in fig. 1 to 3, the drainage system 6 includes a water inlet 61, a water outlet group including a first water outlet 63 and a second water outlet 64, and a drainage manner switching unit 62 disposed between the water inlet 61 and the second water outlet 64. The drainage manner switching unit 62 includes a first drainage module and a second drainage module communicating with each other and cooperating with each other, the first drainage module being disposed upstream of the second drainage module in the drainage direction. The first drainage module includes a first drainage chamber 621 and an impeller 622 disposed in the first drainage chamber 621, the second drainage module includes a second drainage chamber 623 and a normally closed valve plate 624 disposed in the second drainage chamber 623, the first water outlet 63 is disposed in the first drainage chamber 621 and communicated with the second connection pipe 52, and the second water outlet 64 is disposed in the second drainage chamber 623 and communicated with the third connection pipe 53. In one possible embodiment, referring to fig. 2 and 3 and to fig. 3 and in the orientation of fig. 3, a central horizontally disposed impeller 622 is coupled to the front and rear of the first drainage chamber 621, the impeller 622 being capable of counterclockwise rotation about its central axis. The valve sheet 624 is connected to the left side wall of the second drain chamber 623 in such a manner as to be movable forward and backward, so that the valve sheet 624 can be switched between the opened and closed states by being movable forward and backward. It will be understood that the foregoing impeller and valve plate configurations and the manner of securing the same are merely exemplary and are only illustrative of the principles of the present invention and are not intended to limit the scope of the invention. For example, the central shaft of the impeller can also be vertically and axially connected with the upper surface and the lower surface of the second drainage chamber, and the valve plate can also be opened and closed in a vertical moving or pivoting mode. Obviously, such modifications do not depart from the basic concept of the present invention and therefore, should fall within the scope of the present invention.
Further, as shown in fig. 2 and 3, the drain system 6 further includes a filter device disposed upstream of the first drain module, the filter device including a filter chamber 81, a filter screen 83, a filter chamber washing water inlet 82 disposed on the filter chamber 81, a filter screen outlet 84, and a filter chamber cover 85 pivotally disposed on the filter chamber 81. Through the setting of filter unit, debris such as hair, end of a thread, piece in can filtering the washing water and in time clear away it, the change of the filter screen of being convenient for simultaneously has avoided washing machine drainage pipe's jam. And the filtered washing water can be used for flushing a toilet or watering flowers and the like, so that the water resource is recycled.
With continued reference to fig. 2, the drainage mode switching unit 62 further includes a driving module, the driving module includes a first driving motor 625 and a second driving motor 626, the first driving motor 625 is connected with the impeller 622, and the second driving motor 626 is connected with the valve plate 624. Through the rotation of drive module drive impeller or the switching of valve block, drainage system has realized freely switching over between last drainage mode and lower drainage mode to the last drainage or the lower drainage of washing machine have been realized.
It is understood that the second drive motor may be a linear motor or a stepper motor, etc. In a simple situation, the second driving motor may be replaced by an electromagnet, the valve plate is correspondingly set as a magnet, and the magnetic pole of the electromagnet is changed by changing the direction of the current flowing through the electromagnet, so that the electromagnet and the valve plate attract or repel each other to drive the valve plate to open or close. And the driving module can also comprise a common driving motor and a transmission mechanism, and the driving motor and the transmission mechanism are matched to drive the rotation of the impeller or the opening and closing of the valve plate, so that the free switching between the upper drainage mode and the lower drainage mode is realized. For example, in the upper drainage mode, the common driving motor drives the impeller to rotate, and the valve plate does not act, so that the upper drainage of the washing machine is realized. In addition, the driving module can be connected with the impeller so as to drive the impeller to rotate, and is connected with the valve plate so as to drive the valve plate to be opened, so that the free switching between an upper drainage mode and a lower drainage mode is realized.
In addition, the drainage system 6 further includes a control unit electrically connected to the first and second driving motors 625 and 626, respectively, to control the impeller 622 and the valve plate 624 to cooperate with each other to selectively switch the drainage mode of the drainage system 6 to the upper drainage mode or the lower drainage mode. Through the arrangement of the control unit, when the drainage mode of the washing machine needs to be switched, a user only needs to input an instruction, and the control unit can be electrically connected with the first driving motor and the second driving motor to drive the cooperation of the impeller and the valve plate, so that the drainage mode of the drainage system of the washing machine can be switched. Of course, in the installation stage of the washing machine, an installer may pre-select a control program of the control unit according to the installation position of the washing machine and connect the drain pipe to the corresponding pipe joint to implement one of the upper drainage mode and the lower drainage mode, and when a user changes a decoration scheme or needs to change the drainage mode of the washing machine after moving, the user selects the corresponding control program through the control unit and connects the drain pipe to the other pipe joint to switch the drainage mode of the washing machine to the other one.
As can be seen from the above description, the specific drainage manner of the washing machine is as follows:
in the upper drainage mode, after the washing operation is completed, the control unit controls the first driving motor 625 to rotate according to a selected program, the first driving motor 625 drives the impeller 622 to rotate, the second driving motor 626 does not act so as to keep the normally closed valve plate 624 closed, the washing water in the outer tub 3 flows into the filtering chamber 81 of the filtering unit through the first connecting pipe 51 via the filtering chamber washing water inlet 82, the washing water enters the first drainage chamber 621 from the water inlet 61 after being filtered by the filtering net 83 of the filtering unit, and the washing water flows from the first water outlet 63 through the second connecting pipe 52 and the pipe joint 54 at the upper part of the right side panel of the box body 2 under the driving of the impeller 622, and is finally discharged from the drainage pipe 7.
In the lower drainage mode, after the washing operation is completed, the control unit controls the second driving motor 626 to rotate according to a selected program, the second driving motor 626 drives the valve disc 624 to open, the first driving motor 625 does not operate and the impeller 622 does not rotate, the washing water in the outer cylinder 3 flows into the filtering chamber 81 of the filtering unit through the filtering chamber washing water inlet 82 through the first connecting pipe 51, after being filtered by the filtering net 83 of the filtering unit, the washing water firstly enters the first drainage chamber 621 from the water inlet 61 and then flows into the second drainage chamber 623, and under the action of gravity, the washing water flows through the third connecting pipe 53 and the pipe joint 54 at the lower part of the right side panel of the box body 2 from the second water outlet 64 and is finally drained to the floor drain 9 from the drainage pipe 7.
As can be seen from the above description, the drainage system of the invention can realize the free switching between the upper drainage mode and the lower drainage mode by arranging the drainage mode switching unit, and breaks through the defect of the single drainage mode of the existing washing machine, so that the washing machine has two drainage modes of upper drainage and lower drainage simultaneously, the selection of the drainage mode of the washing machine by a user is facilitated, meanwhile, the free switching of the drainage mode of the washing machine when the drainage mode of the washing machine is changed due to the change of decoration schemes or the need of moving the house by the user in the later period is facilitated, and the range of the use place of the washing machine is expanded. Meanwhile, the drainage mode switching unit improves the compactness of the whole structure of the washing machine to a certain extent. Preferably, the first drainage module comprises a first drainage chamber and an impeller arranged in the first drainage chamber, the second drainage module comprises a second drainage chamber and a valve plate arranged in the second drainage chamber, and the impeller rotates and the valve plate opens to mutually cooperate to realize upper drainage or lower drainage of the washing machine. Preferably, the drainage mode switching unit of the present invention further comprises a driving module, wherein the driving module comprises a first driving motor and a second driving motor, and the first driving motor and the second driving motor cooperate with each other to realize upper drainage or lower drainage of the washing machine. In addition, the drainage system of the invention also comprises a control unit which respectively controls the first driving motor and the second driving motor to enable the impeller to rotate or the valve plate to be opened so as to realize upper drainage or lower drainage of the washing machine.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (2)
1. A drainage system of a washing machine is characterized by comprising a water inlet, a water outlet group and a drainage mode switching unit arranged between the water inlet and the water outlet group, wherein the water outlet group comprises a first water outlet and a second water outlet,
the drainage mode switching unit is arranged to be capable of selectively switching the drainage mode of the drainage system to an upper drainage mode for draining water from the first water outlet or a lower drainage mode for draining water from the second water outlet;
the drainage mode switching unit comprises a first drainage module and a second drainage module, the first water outlet is communicated with the first drainage module, the second water outlet is communicated with the second drainage module, and the first drainage module and the second drainage module are communicated with each other and cooperate with each other so as to selectively switch the drainage mode of the drainage system into an upper drainage mode or a lower drainage mode;
the first drainage module is arranged at the upstream of the second drainage module along the drainage direction and comprises a first drainage chamber and an impeller arranged in the first drainage chamber,
the second drainage module comprises a second drainage cavity and a normally closed valve plate arranged in the second drainage cavity, and the first drainage cavity and the second drainage cavity can be selectively communicated by means of the normally closed valve plate;
the drainage mode switching unit further comprises a driving module, the driving module is connected with the impeller so as to drive the impeller to rotate, and the driving module is further connected with the valve plate so as to drive the valve plate to be opened;
the driving module comprises a first driving motor and a second driving motor,
the first driving motor is connected with the impeller, and the second driving motor is connected with the valve plate;
the drainage system also comprises a control unit which is electrically connected with the first driving motor and the second driving motor respectively so as to enable the impeller and the valve plate to cooperate with each other to selectively switch the drainage mode of the drainage system into an upper drainage mode or a lower drainage mode;
the control unit is configured to operate the second driving motor to drive the normally closed valve sheet to be opened and to not operate the first driving motor so that the impeller does not act to switch the drainage pattern of the drainage system to a lower drainage pattern;
the control unit is further configured to operate the first drive motor so that the impeller rotates and to deactivate the second drive motor so that the normally closed valve sheet remains closed to switch the drain mode of the drain system to the top drain mode.
2. A washing machine characterized in that it comprises a draining system according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421585.4A CN109957938B (en) | 2017-12-25 | 2017-12-25 | Washing machine and drainage system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711421585.4A CN109957938B (en) | 2017-12-25 | 2017-12-25 | Washing machine and drainage system thereof |
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| CN109957938A CN109957938A (en) | 2019-07-02 |
| CN109957938B true CN109957938B (en) | 2022-11-04 |
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| CN111648084B (en) * | 2020-04-22 | 2022-10-21 | 海信冰箱有限公司 | Washing machine and drainage control method thereof |
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| JPH1077837A (en) * | 1996-08-30 | 1998-03-24 | Aisin Seiki Co Ltd | Water pump for internal combustion engine |
| CN103237978A (en) * | 2010-12-13 | 2013-08-07 | 三菱电机株式会社 | Exhaust gas circulation valve |
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| JPH09322997A (en) * | 1996-06-07 | 1997-12-16 | Toshiba Corp | Washing machine to be used in common with dehydration |
| CN2432231Y (en) * | 2000-07-13 | 2001-05-30 | 海尔集团公司 | Washing machine capable for reusing washing water |
| KR100748952B1 (en) * | 2000-07-14 | 2007-08-13 | 엘지전자 주식회사 | Drain apparatus for washing machine |
| CN2550399Y (en) * | 2002-05-16 | 2003-05-14 | 沈永革 | Double water drainage tube washing machine |
| CN1566494A (en) * | 2003-06-17 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Drainage direction adjustable washing machine |
| CN201056640Y (en) * | 2007-06-08 | 2008-05-07 | 上海市宝山区青少年科学技术指导站 | Double-drainage function of washing machine |
| CN101851845B (en) * | 2009-03-31 | 2013-05-01 | 海尔集团公司 | Device for preventing bubbles from overflowing and rolling washing machine with same |
| CN101725007A (en) * | 2009-11-09 | 2010-06-09 | 贝国寅 | Intelligent automatic washing machine |
| CN204185691U (en) * | 2014-09-22 | 2015-03-04 | 合肥市宏键精工模具有限责任公司 | A kind of active washing machine lint collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1077837A (en) * | 1996-08-30 | 1998-03-24 | Aisin Seiki Co Ltd | Water pump for internal combustion engine |
| CN103237978A (en) * | 2010-12-13 | 2013-08-07 | 三菱电机株式会社 | Exhaust gas circulation valve |
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| CN109957938A (en) | 2019-07-02 |
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Effective date of registration: 20220921 Address after: No. 39, Area A, Gangcheng Industrial Park, Jiangbei District, Chongqing 400026 Applicant after: Chongqing Haier Washing Appliance Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. |
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Effective date of registration: 20221101 Address after: 400026 No.303, Block E, No.1 Gangcheng South Road, Jiangbei District, Chongqing Applicant after: Chongqing Haier Front-loading Washing Machine Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: No. 39, Area A, Gangcheng Industrial Park, Jiangbei District, Chongqing 400026 Applicant before: Chongqing Haier Washing Appliance Co.,Ltd. Applicant before: Haier Zhijia Co.,Ltd. |