CN107687427B - Water suction pump, washing machine and control method of washing machine - Google Patents

Water suction pump, washing machine and control method of washing machine Download PDF

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Publication number
CN107687427B
CN107687427B CN201710915375.4A CN201710915375A CN107687427B CN 107687427 B CN107687427 B CN 107687427B CN 201710915375 A CN201710915375 A CN 201710915375A CN 107687427 B CN107687427 B CN 107687427B
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China
Prior art keywords
water
suction pump
washing machine
pump motor
pump
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CN201710915375.4A
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Chinese (zh)
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CN107687427A (en
Inventor
陈瑜
李书平
高秋英
薛凯
方大丰
刘桃
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Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Priority to CN201710915375.4A priority Critical patent/CN107687427B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/088Liquid supply arrangements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • D06F2202/12
    • D06F2204/086
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention relates to a water suction pump, which comprises a pump motor, wherein a power line of the water suction pump is provided with a control structure for controlling the running state of the pump motor, a water outlet pipeline of the water suction pump is provided with a detection structure for detecting whether the water suction pump discharges water, the detection structure is connected with the control structure, and the control structure judges that the water outlet pipeline of the water suction pump discharges water according to the detection information of the detection structure and then controls the pump motor to continue to work. The washing machine comprises a washing machine body, wherein a water inlet valve is arranged on the washing machine body, and a water inlet pipeline of the washing machine body is communicated with a water outlet pipeline of the water suction pump. After the pump motor is started, the detection structure detects whether the water outlet pipeline of the water suction pump discharges water or not, and whether the water inlet valve of the washing machine body is opened or not is judged according to the detection information so as to judge whether the water suction pump continues to work or not. The washing machine disclosed by the invention has the advantages that the automatic water inlet control is realized, and the experience effect of a user is improved.

Description

Water suction pump, washing machine and control method of washing machine
Technical Field
The invention relates to a water suction pump, a washing machine and a control method of the washing machine.
Background
With the rapid development of science and technology, washing machines have gone into thousands of households as a necessary household appliance. Most of water injection modes of full-automatic washing machines on the market at present rely on the pressure of tap water to inject water into the washing machines. However, most of the present situations in rural areas are that 1) no tap water is available, river water and well water are needed or water is stored in a water tank and a reservoir during washing, and 2) tap water is available, but the tap water is low in water pressure or discontinuous in supply and needs to be stored, so that the washing machine cannot meet the requirement of a mode of filling water by depending on the pressure of the tap water. In order to solve the problem, a washing machine with a water suction pump is provided in the market, the water suction pump is integrated in the washing machine, and a computer board is adopted to control the work of the water suction pump.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a water suction pump, which is used for realizing the automatic start and stop of the water suction pump and simplifying the operation of the water suction pump.
In order to realize the purpose, the invention adopts the following technical scheme:
a control structure for controlling the running state of a pump motor is arranged on a power line of the water suction pump, a detection structure for detecting whether the water suction pump discharges water is arranged on a water outlet pipeline of the water suction pump, the detection structure is connected with the control structure, and the control structure judges that the water outlet pipeline of the water suction pump discharges water according to detection information of the detection structure and then controls the pump motor to continue to work.
Furthermore, the control structure comprises a timing starting module, the timing starting module is connected with the pump motor, and the pump motor is started after the timing starting module triggers a starting instruction of the pump motor.
Furthermore, the control structure comprises a feedback control module, and the feedback control module is respectively connected with the detection structure and the pump motor, so that the feedback control module collects detection information of the detection structure after the pump motor is started and controls the running state of the pump motor according to the detection information;
preferably, the control structure is an adapter.
Furthermore, the detection structure comprises a blade rotating along with the flow of water flow, a magnet arranged at the edge of the blade and a switch type Hall sensor arranged close to the edge of the blade, wherein the blade rotates, the Hall sensor outputs a pulse signal and transmits the signal to the control structure, so that the control structure judges whether the water outlet pipeline of the water suction pump discharges water according to whether the pulse signal is collected.
Further, the water inlet structure of the water suction pump is soaked in a water source.
The invention also provides a washing machine provided with the water suction pump, which comprises a washing machine body, wherein the washing machine body is provided with a water inlet valve for controlling the on-off of a water inlet pipeline, and the water inlet pipeline of the washing machine body is communicated with a water outlet pipeline of the water suction pump.
The invention also provides a control method of the washing machine, after the pump motor is started, the detection structure detects whether the water outlet pipeline of the water suction pump discharges water or not, and judges whether the water inlet valve of the washing machine body is opened or not according to the detection information so as to judge whether the pump motor continues to work or not.
Further, the pump motor is started in the water inlet process of the washing machine body.
Further, the pump motor is started at regular intervals.
Further, the method comprises the following steps:
step 1, electrifying and starting a washing machine body, and executing step 2;
step 2, starting a washing program of the washing machine body to enter a water inlet process, opening a water inlet valve, and executing step 3;
step 3, starting a pump motor, and executing step 4;
step 4, detecting whether the water outlet pipeline of the water suction pump of the structure is water or not, and respectively executing the step 5 or 6 according to the detection information;
step 5, if the water outlet pipeline of the water suction pump discharges water, the water inlet valve of the washing machine body is opened, the water inlet valve indicates that the water inlet is not at the set water level, the pump motor continues to work, and the step 4 is executed;
and 6, if the water outlet pipeline of the water suction pump does not discharge water, closing the water inlet valve of the washing machine body, indicating that the water is introduced to the set water level, stopping the work of the pump motor, and finishing the water inlet process.
Compared with the prior art, the invention has the following beneficial effects:
1. the water suction pump structure of the invention realizes the automatic starting of the pump motor and the automatic stopping when the pump motor does not need to work, thereby simplifying the operation of the water suction pump and improving the experience effect of users.
2. The water suction pump, the power cord of the water suction pump and the control structure are arranged outside the washing machine, so that the structure of the washing machine is simplified, the washing machine comprises two independent units of the water suction pump and the washing machine body, the water suction pump 3 can be selected and purchased by a user as a spare part, the flexibility is high, the universality is good, the water suction pump is automatically started and stopped in the water inlet process of the washing machine body, and the experience effect of the user is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a water pump according to the present invention;
FIG. 2 is a flow chart illustrating a control method of a washing machine according to the present invention;
FIG. 3 is a schematic view showing the connection structure of the parts of the water suction pump provided by the present invention;
wherein the names of the components are as follows:
1-adapter, 2-water outlet pipeline, 3-water suction pump, 4-blade, 5-magnet, 6-switch type Hall sensor, 7-detection structure, 100-control structure.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments are clearly and completely described below, and the following embodiments are used for illustrating the present invention and are not used for limiting the scope of the present invention.
Example one
As shown in fig. 1, in the embodiment of the present invention, a control structure 100 for controlling an operation state of a pump motor is disposed on a power line of a water suction pump 3, a detection structure 7 for detecting whether the water suction pump 3 is discharged is disposed on a water outlet pipeline 2 of the water suction pump 3, the detection structure 7 is connected to the control structure 100, and the control structure 100 determines that the pump motor continues to operate after the water outlet pipeline of the water suction pump 3 is discharged according to detection information of the detection structure 7.
The water suction pump structure of the invention realizes the automatic water inlet control of the washing machine and improves the experience effect of users.
The working state of the water suction pump 3 is as follows:
1. after the pump motor is started, the water suction pump 3 starts to suck water, the detection structure 7 detects whether the water outlet pipeline of the water suction pump 3 outputs water, if the water outlet pipeline of the water suction pump 3 is currently delivering water, the pump motor continues to work, and if the water outlet pipeline of the water suction pump 3 is not currently delivering water, the pump motor stops working.
The water suction pump 3 comprises the following operation steps:
1. starting a pump motor; 2. judging whether the water outlet pipeline of the water suction pump 3 is water or not, if so, executing the step 3, and if not, executing the step 4; 3. the pump motor continues to work; 4. the pump motor stops operating.
A washing machine provided with the water suction pump 3 comprises a washing machine body, wherein a water inlet valve which is used for controlling the on-off of a water inlet pipeline and is opened only in the water inlet process is arranged on the washing machine body, the water inlet pipeline of the washing machine body is communicated with a water outlet pipeline 2 of the water suction pump 3, and the water suction pump 3 and the washing machine body are arranged independently.
Through the arrangement, when the water inlet pipeline of the washing machine body is communicated with the water outlet pipeline of the water suction pump, the water outlet pipeline of the water suction pump can continuously discharge water only by controlling the water inlet valve of the water inlet pipeline of the washing machine body to be opened, namely, when the water inlet valve is opened, the water outlet pipeline of the water suction pump discharges water, the pump motor continues to work, and the water outlet pipeline of the water suction pump continuously discharges water; when the water inlet valve is closed, the water outlet pipeline of the water suction pump does not discharge water, and the pump motor stops working. Meanwhile, if the water inlet valve can be opened in the process of not feeding water, the situation that water still enters after the water enters the water level is set can occur, and the problem is avoided by enabling the water inlet valve to be opened only in the process of feeding water.
The water suction pump 3, the power cord of the water suction pump 3 and the control structure 100 are arranged outside the washing machine, so that the structure of the washing machine is simplified, the washing machine comprises the water suction pump 3 and a washing machine body which are independent, the water suction pump 3 can be used as a spare part to be purchased by a user, and the washing machine has higher flexibility and better universality.
The water inlet structure of the water suction pump 3 is soaked in a water source.
The working state of the washing machine is as follows:
1. when the washing machine body is in a water inlet process, after a pump motor is started, the water suction pump 3 starts to suck water, whether a water outlet pipeline of the water suction pump 3 outputs water is judged, if yes, the water outlet pipeline of the water suction pump 3 is currently delivering water, a water inlet valve of the washing machine body is opened, the washing machine body feeds water, the pump motor continues to work, if not, the water outlet pipeline of the water suction pump 3 is not currently delivering water, the water inlet valve of the washing machine body is closed, the washing machine body finishes water inlet, and the pump motor stops working;
wherein, the washing machine body is always in the water inlet process before the water level reaches the set value, and because the washing machine body has multiple water inlet processes in the working process, the water suction pump 3 is started once every certain time;
the operation steps of the washing machine are as follows:
step 1, electrifying and starting a washing machine body, and executing step 2;
step 2, starting a washing program of the washing machine body to enter a water inlet process, opening a water inlet valve, and executing step 3;
step 3, after the water inlet valve is opened, starting a pump motor, and executing the step 4;
step 4, the detection structure 7 detects whether the water outlet pipeline 2 of the water suction pump 3 is water outlet, and step 5 or step 6 is respectively executed according to the detection information;
step 5, if the water outlet pipeline 2 of the water suction pump 3 discharges water, the water inlet valve of the washing machine body is opened, the water inlet valve indicates that the water inlet is not at the set water level, the pump motor continues to work, and the step 4 is executed;
and 6, if the water outlet pipeline 2 of the water suction pump 3 does not discharge water, closing the water inlet valve of the washing machine body, indicating that the water inlet reaches the set water level, stopping the work of the pump motor, and ending the water inlet process.
When the water source is far away from the washing machine body and the water outlet pipeline 2 of the water suction pump 3 is long, the detection structure 7 is arranged close to the water suction pump 3 to shorten the connection circuit. When the water source is close to the washing machine body and the water outlet pipeline 2 of the water suction pump 3 is short, the detection structure 7 is arranged close to the washing machine body so as to improve the accuracy of detection information.
Example two
As shown in fig. 1 and 2, the difference between the present embodiment and the first embodiment is that the control structure 100 includes a timing starting module, the timing starting module is connected to the pump motor, and the pump motor is started after the timing starting module triggers a pump motor start command.
Preferably, the control structure 100 includes a feedback control module, and the feedback control module is respectively connected to the detection structure 7 and the pump motor, so that the feedback control module collects detection information of the detection structure 7 after the pump motor is started, and controls the operation state of the pump motor according to the detection information;
the automatic water inlet control of the washing machine is further optimized by the arrangement, and the experience effect of a user is improved.
The working state of the water suction pump 3 is as follows:
1. triggering a starting instruction of the pump motor to start the pump motor, starting the water suction pump 3 to suck water, detecting whether the water outlet pipeline of the water suction pump 3 is discharging water or not by the detection structure 7, if the water outlet pipeline of the water suction pump 3 is discharging water currently, continuing to work by the pump motor, and if the water outlet pipeline of the water suction pump 3 is not discharging water currently, stopping the pump motor.
The water suction pump 3 comprises the following operation steps:
1. triggering a starting instruction of the pump motor to start the pump motor; 2. judging whether the water outlet pipeline of the water suction pump 3 is water or not, if so, executing the step 3, and if not, executing the step 4; 3. the pump motor continues to work; 4. the pump motor stops working.
The working state of the washing machine is as follows:
1. when the washing machine body is in a water inlet process, a starting instruction of a pump motor is triggered to start the pump motor, the water suction pump 3 starts to suck water after the pump motor is started, whether a water outlet pipeline of the water suction pump 3 outputs water is judged, if yes, the water outlet pipeline of the water suction pump 3 is currently delivering water, a water inlet valve of the washing machine body is opened, the washing machine body feeds water, the pump motor continues to work, if not, the water outlet pipeline of the water suction pump 3 is not currently delivering water, the water inlet valve of the washing machine body is closed, the washing machine body finishes water inlet, and the pump motor stops working;
wherein, the washing machine body is always in the water inlet process before the water level reaches the set value, and because the washing machine body has multiple water inlet processes in the working process, the water suction pump 3 is started once every certain time;
2. when the washing machine body is not in the water inlet process, a starting instruction of the pump motor is triggered to start the pump motor, the water suction pump 3 starts to suck water, the detection structure 7 detects whether water flows out of a water outlet pipeline of the water suction pump 3, and the pump motor automatically stops when water does not flow.
The operation steps of the washing machine are as follows:
step 1, electrifying and starting a washing machine body, and executing step 2;
step 2, starting a washing program of the washing machine body to enter a water inlet process, opening a water inlet valve, and executing step 3;
step 3, after the water inlet valve is opened, triggering a starting instruction of the pump motor, starting the pump motor, and executing the step 4;
step 4, the detection structure 7 detects whether the water outlet pipeline 2 of the water suction pump 3 is water outlet, and step 5 or step 6 is respectively executed according to the detection information;
step 5, if the water outlet pipeline 2 of the water suction pump 3 discharges water, the water inlet valve of the washing machine body is opened, the water inlet valve indicates that the water inlet is not at the set water level, the pump motor continues to work, and the step 4 is executed;
and 6, if the water outlet pipeline 2 of the water suction pump 3 does not discharge water, closing the water inlet valve of the washing machine body, indicating that the water inlet reaches the set water level, stopping the work of the pump motor, and ending the water inlet process.
EXAMPLE III
As shown in fig. 1-3, the present embodiment is different from the first to second embodiments in that the detecting structure 7 includes a blade 4 rotating with the flow of the water flow, a magnet 5 disposed at the edge of the blade 4, and a switch-type hall sensor 6 disposed near the edge of the blade 4, the blade 4 rotates, the hall sensor 6 outputs a pulse signal, and transmits the signal to the control structure 100, so that the control structure 100 determines whether water is produced according to whether the pulse signal is collected.
Preferably, the control structure 100 is an adapter 1.
The working state of the water suction pump 3 is as follows:
1. after the pump motor is started, the water suction pump 3 starts to suck water, whether a pulse signal is collected or not is judged, if the water outlet pipeline of the water suction pump 3 discharges water, the water outlet pipeline of the water suction pump 3 is currently conveying water, the pump motor continues to work, and if the water outlet pipeline of the water suction pump 3 does not discharge water, the water outlet pipeline of the water suction pump 3 is not currently conveying water, and the pump motor stops working.
The water suction pump 3 comprises the following operation steps:
1. starting a pump motor; 2. judging whether a pulse signal is acquired, if so, executing a step 3, and if not, executing a step 4; 3. the pump motor continues to work; 4. the pump motor stops working.
The working state of the washing machine is as follows:
1. when the washing machine body is in a water inlet process, after a pump motor is started, a water suction pump 3 starts to suck water, whether a pulse signal is collected or not is judged, if yes, water is discharged from a water outlet pipeline of the water suction pump 3, the water outlet pipeline of the water suction pump 3 is currently delivering water, a water inlet valve of the washing machine body is opened, the washing machine body feeds water, the pump motor continues to work, if not, the water outlet pipeline of the water suction pump 3 does not discharge water currently, the water inlet valve of the washing machine body is closed, the washing machine body finishes feeding water, and the pump motor stops working;
wherein, the washing machine body is always in the water inlet process before the water level reaches the set value, and because the washing machine body has multiple water inlet processes in the working process, the water suction pump 3 is started once every certain time;
2. when the washing machine body is not in the water inlet process, the water suction pump 3 starts to suck water after the pump motor is started, whether the pulse signal is collected or not is detected, and if the pulse signal is not collected, the pump motor automatically stops.
The operation steps of the washing machine are as follows:
step 1, electrifying and starting a washing machine body, and executing step 2;
step 2, starting a washing program of the washing machine body to enter a water inlet process, opening a water inlet valve, and executing step 3;
step 3, after the water inlet valve is opened, starting a pump motor, and executing the step 4;
step 4, the detection structure 7 detects whether the pulse signal is acquired, and the step 5 or the step 6 are respectively executed according to the detection information;
step 5, if the pulse signal is collected, the water outlet pipeline 2 of the water suction pump 3 discharges water, a water inlet valve of the washing machine body is opened, the water inlet valve is indicated that the water inlet is not at the set water level, the pump motor continues to work, and the step 4 is executed;
and 6, if the pulse signal is not acquired, the water outlet pipeline 2 of the water suction pump 3 does not discharge water, the water inlet valve of the washing machine body is closed, the water inlet valve indicates that the water inlet reaches the set water level, the pump motor stops working, and the water inlet process is finished.
The conventional water suction pump 3 is integrated in the washing machine, and the work of the load of the water suction pump 3 is controlled by a computer board and the like. The external water suction pump 3 designed by the invention is an independent product, is matched with a top-opening impeller full-automatic washing machine for use, and can be used by some users in villages and towns without running water, the water suction pump 3 body is placed in a water tank, the motor is powered by the independent external adapter 1 without being controlled by a washing machine computer board, and the magnetic core of the Hall sensor 7 is used for sensing the flow of water flow in the water suction process, so that the water suction action is achieved, and the water inlet process of the full-automatic washing machine is met.
When the water inlet valve of the top-open type full-automatic washing machine body works, the adapter 1 of the external water suction pump 3 is powered on, the magnetic core of the Hall sensor 7 senses that water flows through, the pump motor works, and the water suction pump 3 sucks water under the conditions of meeting the 2 conditions, so that the water inlet process of the full-automatic washing machine is met; when the water inlet valve of the top-opening type full-automatic washing machine body does not work, namely the magnetic core of the Hall sensor 7 does not induce water flow to flow through, the external water suction pump 3 adapter 1 has no Hall signal transmission, the water suction condition of the water suction pump 3 is not met, namely the water suction pump 3 does not suck water, and at the moment, the full-automatic washing machine generally executes the washing, rinsing or dewatering process after water is fed.
External water sucking pump 3 responds to the magnetic core rotation through hall sensor 7, feeds back to adapter 1 hall signal, and adapter 1 is electrified simultaneously, supplies water sucking pump 3 pump body voltage, satisfies these two requirements and can reach water sucking pump 3 and absorb water the action. The water inlet condition of the full-automatic washing machine is that the two conditions are met simultaneously, and the water suction pump 3 sucks water; when the full-automatic washing machine is used for washing, rinsing and dewatering, the water inlet valve does not act, and the Hall magnetic core does not act under the first condition, so that the water suction condition of the water suction pump 3 is not met.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A control method of a washing machine is characterized in that after the pump motor is started, a detection structure (7) detects whether a water outlet pipeline of the water suction pump discharges water or not, and judges whether a water inlet valve of a washing machine body is opened or not according to detection information so as to judge whether the pump motor continues to work or not;
the method comprises the following steps:
step 1, electrifying and starting a washing machine body, and executing step 2;
step 2, starting a washing program of the washing machine body to enter a water inlet process, opening a water inlet valve, and executing step 3;
step 3, starting a pump motor, and executing step 4;
step 4, detecting whether the water outlet pipeline of the water suction pump of the structure is water or not, and respectively executing the step 5 or 6 according to the detection information;
step 5, if the water outlet pipeline of the water suction pump discharges water, the water inlet valve of the washing machine body is opened, the water inlet valve indicates that the water inlet is not at the set water level, the pump motor continues to work, and the step 4 is executed;
step 6, if the water outlet pipeline of the water suction pump does not discharge water, closing a water inlet valve of the washing machine body, indicating that the water inlet reaches a set water level, stopping the work of a pump motor, and ending the water inlet process;
when the washing machine body is not in the water inlet process, a starting instruction of the pump motor is triggered to start the pump motor, the water suction pump (3) starts to suck water, the detection structure (7) detects whether water flows out of a water outlet pipeline of the water suction pump (3), and the pump motor automatically stops when water does not flow.
2. The control method of a washing machine as claimed in claim 1, wherein the pump motor is started during the water supply of the washing machine body.
3. The control method of a washing machine as claimed in claim 2, wherein the pump motor is activated once every certain time.
4. A suction pump for a control method of a washing machine according to any of claims 1 to 3, characterized in that a control structure (100) for controlling the operation state of the pump motor is provided on the power line of the suction pump (3), a detection structure (7) for detecting whether the suction pump (3) is discharging water is provided on the water outlet pipe (2) of the suction pump (3), the detection structure (7) is connected to the control structure (100), and the control structure (100) controls the pump motor to continue to operate after determining that the water outlet pipe of the suction pump (3) is discharging water according to the detection information of the detection structure (7).
5. A suction pump according to claim 4, characterized in that the control structure (100) comprises a feedback control module, which is connected to the detection structure (7) and the pump motor, respectively, so that the feedback control module collects the detection information of the detection structure (7) after the pump motor is started and controls the operation state of the pump motor according to the detection information.
6. A suction pump according to claim 5, characterized in that the control structure (100) is an adapter (1).
7. The water suction pump as claimed in claim 4, wherein the control structure (100) comprises a timed starting module, the timed starting module is connected with the pump motor, and the timed starting module triggers the pump motor to start after a pump motor start command is triggered.
8. A suction pump according to any of claims 4-7, characterized in that the detection structure (7) comprises a blade (4) rotating with the flow of the water flow, a magnet (5) arranged at the edge of the blade (4) and a switch type Hall sensor (6) arranged near the edge of the blade (4), the blade (4) rotates, the Hall sensor (6) outputs a pulse signal and transmits the signal to the control structure (100), so that the control structure (100) judges whether the water outlet pipeline of the suction pump (3) is discharging water according to whether the pulse signal is collected.
9. A suction pump according to any of claims 4-7, characterized in that the suction pump (3) is immersed in a water supply.
10. A washing machine equipped with a suction pump according to any of claims 4 to 9, characterized in that it comprises a washing machine body provided with a water inlet valve for controlling the opening and closing of a water inlet line, the water inlet line of the washing machine body being in communication with the water outlet line (2) of the suction pump (3).
CN201710915375.4A 2017-09-30 2017-09-30 Water suction pump, washing machine and control method of washing machine Active CN107687427B (en)

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CN108625117A (en) * 2017-03-15 2018-10-09 青岛海尔洗衣机有限公司 The pump group part that absorbs water and its control method
CN110319470A (en) * 2019-06-06 2019-10-11 华帝股份有限公司 Water quantity detection method and detection system for automatically cleaning range hood
CN113279210A (en) * 2021-04-06 2021-08-20 青岛海尔洗衣机有限公司 Residual water draining control method for laundry equipment

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CN201081736Y (en) * 2007-08-20 2008-07-02 谢庆武 Water flow detection device, water flow detector, and automatically controlled water pump
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