CN114687151A - Washing device and control method of washing device - Google Patents

Abstract

The invention belongs to the technical field of household appliances, and particularly relates to a washing device and a control method of the washing device. The washing device comprises a three-way electromagnetic valve, a negative pressure pipeline, a flushing pipeline, a metering barrel, a detergent box, a washing barrel and a main control module; the inlet of the three-way electromagnetic valve is communicated with the water inlet of the washing device; a first outlet of the three-way electromagnetic valve is communicated with an inlet end of a negative pressure pipeline, and an outlet end of the negative pressure pipeline is communicated with the washing barrel; a second outlet of the three-way electromagnetic valve is communicated with an inlet end of a flushing pipeline, and an outlet end of the flushing pipeline is communicated with the metering barrel; the negative pressure area of the negative pressure pipeline is communicated with the metering barrel, and the metering barrel is communicated with the detergent box; the bottom of the metering barrel is provided with a movable cover, and when the movable cover is opened, the metering barrel is communicated with the washing barrel; the three-way electromagnetic valve is electrically connected with the main control module, and the main control module is configured to control the working state of the three-way electromagnetic valve. Thereby simplifying the detergent feeding structure of the washing device and saving electric energy.

Description

Washing device and control method of washing device

Technical Field

The invention relates to the technical field of household appliances, in particular to a washing device and a control method of the washing device.

Background

With the development of science and technology and the acceleration of life rhythm, the washing machine not only gradually becomes the indispensable domestic appliance in daily life, but also the intelligent degree is higher and higher. At present, the washing machine can automatically control water inlet/water discharge and automatic washing/dewatering/drying, and can automatically put in detergent, so that the workload of a user is further reduced, and the user experience is improved.

In the related art, a detergent putting device of a washing machine mainly comprises a suction pump, a detergent box, a connecting pipeline, a connecting circuit and the like, wherein the suction pump is communicated between the detergent box and a washing tub through the connecting pipeline, and the suction pump is electrically connected with a main control module through the connecting circuit. The main control module can not only supply power to the suction pump, but also control the suction pump to pump the detergent in the detergent box into the washing barrel.

However, the structure of the detergent dispenser is complicated.

Disclosure of Invention

The washing device can realize the feeding of the detergent without a suction pump, has a simple structure, does not need to consume electric energy, and is favorable for reducing the cost of the washing device and improving the reliability of the washing device.

In a first aspect, the invention provides a washing device, which comprises a three-way electromagnetic valve, a negative pressure pipeline, a flushing pipeline, a metering barrel, a detergent box, a washing barrel and a main control module; the inlet of the three-way electromagnetic valve is communicated with the water inlet of the washing device; a first outlet of the three-way electromagnetic valve is communicated with the inlet end of the negative pressure pipeline, and the outlet end of the negative pressure pipeline is communicated with the washing barrel; a second outlet of the three-way electromagnetic valve is communicated with an inlet end of the flushing pipeline, and an outlet end of the flushing pipeline is communicated with the metering barrel; the negative pressure area of the negative pressure pipeline is communicated with the metering barrel, and the metering barrel is communicated with the detergent box; the bottom of the metering barrel is provided with a movable cover, and when the movable cover is opened, the metering barrel is communicated with the washing barrel; the three-way electromagnetic valve is electrically connected with the main control module, and the main control module is configured to control the working state of the three-way electromagnetic valve.

As can be understood by those skilled in the art, the washing device provided by the present invention electrically connects the three-way electromagnetic valve with the main control module, so that the main control module can control the working state of the three-way electromagnetic valve. The inlet of the three-way electromagnetic valve is communicated with the water inlet of the washing device, the first outlet of the three-way electromagnetic valve is communicated with the inlet end of the negative pressure pipeline, and the outlet end of the negative pressure pipeline is communicated with the washing barrel, so that when the main control module controls the inlet of the three-way electromagnetic valve to be communicated with the first outlet, inlet water can enter the washing barrel through the negative pressure pipeline. Through the second export with three solenoid valve and the entrance point intercommunication that washes the pipeline, wash the exit end and the measuring drum intercommunication of pipeline, the bottom of measuring drum is provided with the removable cover, and when the removable cover was opened, the measuring drum and the washtub intercommunication to when master control module control three solenoid valve's entry and second export intercommunication, the intaking can get into in the measuring drum via washing the pipeline, and get into in the washtub via the measuring drum.

Meanwhile, the negative pressure region of the negative pressure pipeline is communicated with the metering barrel, and the metering barrel is communicated with the detergent box, so that when inlet water flows through the negative pressure pipeline, the negative pressure region of the negative pressure pipeline can generate negative pressure to suck detergent in the detergent box into the metering barrel; therefore, the water entering the measuring bucket through the flushing pipeline can flush the detergent in the measuring bucket into the washing bucket. On one hand, the washing device can realize the feeding of the washing agent without a suction pump, has a simple structure, saves electric energy and has low failure rate, thereby being beneficial to reducing the cost of the washing device and improving the reliability of the washing device. On the other hand, the washing device can realize the purpose of controlling the adding amount of the detergent by controlling the working state of the three-way electromagnetic valve, has simple structure and convenient control, and is not easy to make mistakes.

In the washing apparatus as described above, optionally, the inner bottom wall of the measuring tank is provided with a first electrode, the inner side wall of the measuring tank is provided with at least two second electrodes at intervals along the height direction of the measuring tank, and the polarities of the first electrode and the second electrode are opposite; the first electrode and the second electrode are both electrically connected with the main control module, and the main control module is configured to judge the volume of detergent in the metering barrel according to the conduction state of the first electrode and the second electrode.

The washing device as described above, optionally, the washing device is configured to have a weighing function for weighing the laundry in the washing tub; the main control module is configured to determine the adding volume of the detergent according to the weight of the to-be-washed object.

In the washing device as described above, optionally, a first opening is provided at a top of a sidewall of the metering bucket, and an outlet end of the flushing line is communicated with the metering bucket through the first opening; the axial direction of the outlet end of the flushing pipeline and the axial direction of the metering barrel are mutually staggered.

In the washing device, optionally, the measuring bucket and the detergent box are communicated through an extraction pipe, a first end of the extraction pipe penetrates through the top of the side wall of the measuring bucket and extends into the measuring bucket, and a second end of the extraction pipe extends to the bottom of the detergent box.

In the washing apparatus as described above, optionally, the portion of the liquid suction pipe located inside the measuring bucket is inclined downward in a direction in which the side wall of the measuring bucket is directed toward the center of the measuring bucket.

In the washing apparatus as described above, optionally, the portion of the liquid suction pipe connected to the outside of the measuring tub is inclined downward in a direction away from the measuring tub.

In the washing device as described above, optionally, a collecting groove recessed downwards is disposed on the bottom wall of the detergent box, and the liquid pumping pipe extends into the collecting groove.

The washing device as described above, optionally, further includes a liquid collecting funnel, the outlet end of the negative pressure pipeline and the bottom of the measuring barrel both extend into the liquid collecting funnel, and the bottom outlet of the liquid collecting funnel is communicated with the washing barrel.

The washing device as described above, optionally, the negative pressure pipeline includes a first connecting pipe section, a second connecting pipe section and a venturi pipe section, the first connecting pipe section is communicated between the inlet of the venturi pipe section and the first outlet, and the second connecting pipe section is communicated between the outlet of the venturi pipe section and the washing tub; the throat part of the Venturi tube section is communicated with the top of the metering barrel through an air suction pipe.

Optionally, the three-way electromagnetic valve includes a valve body and a valve core accommodated in the valve body, and the inlet, the first outlet and the second outlet are all disposed on the valve body; the inlet port communicates with the first outlet port when the spool moves to a first position, communicates with the second outlet port when the spool moves to a second position, and does not communicate with both the first outlet port and the second outlet port when the spool moves to a third position.

According to the washing device, optionally, the bottom of the metering barrel is integrally opened, and the movable cover is rotatably connected to the bottom of the metering barrel through a rotating shaft and a torsion spring; when the washing device is not in operation, a gap is formed between the movable cover and the bottom of the metering barrel.

In the washing apparatus as described above, optionally, a sealing member is disposed at a position where the movable cover is abutted to the measuring bucket.

In the washing apparatus as described above, optionally, a sealing member is disposed at a position where the measuring bucket is abutted with the movable cover.

In a second aspect, the present invention provides a control method of a washing apparatus, comprising:

obtaining the adding amount of the detergent;

the inlet of the control three-way electromagnetic valve is communicated with the first outlet;

acquiring and judging whether the actual amount of the detergent in the metering barrel is equal to the put amount or not;

if so, controlling the communication between the inlet of the three-way electromagnetic valve and the second outlet.

The technical personnel in the field can understand that the control method of the washing device provided by the invention can realize the purpose of controlling the adding amount of the detergent by controlling the working state of the three-way electromagnetic valve, and has the advantages of simple structure, convenient control and difficult error. Moreover, the control method of the washing device is applied to the washing device, so that the control method of the washing device can realize the control of the dosage of the detergent without controlling the suction pump, thereby being beneficial to reducing the failure probability of the control and improving the reliability of the control method of the washing device. But also is beneficial to reducing the cost and improving the putting precision of the detergent.

The control method of the washing device as described above, wherein optionally the obtaining of the amount of the detergent to be put comprises:

acquiring the weight of the object to be washed in the washing barrel;

determining the putting volume of the detergent according to the weight of the to-be-washed object;

determining a second electrode corresponding to the dosing volume;

the obtaining and determining whether an actual amount of detergent in the measuring tank is equal to the dosing amount comprises:

and judging whether the second electrode corresponding to the putting volume is conducted with the first electrode.

In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a first schematic structural diagram of a washing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second washing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram III of a washing apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic top view of a washing apparatus with a metering tank connected to a flushing line according to an embodiment of the present invention;

FIG. 5 is a first schematic sectional view of a three-way solenoid valve of the washing apparatus according to the embodiment of the present invention;

FIG. 6 is a schematic sectional view of a three-way solenoid valve of the washing apparatus according to the embodiment of the present invention;

FIG. 7 is a third schematic sectional view of a three-way solenoid valve of the washing apparatus according to the embodiment of the present invention;

fig. 8 is a flowchart illustrating a control method of a washing apparatus according to an embodiment of the present invention.

Description of the reference numerals:

100-three-way electromagnetic valve; 110-a valve body; 111-a first outlet; 112-a second outlet; 113-an inlet; 120-a valve core;

200-a negative pressure pipeline; 210-a first connecting pipe section; 220-a second connecting pipe section; 230-a venturi section; 240-suction pipe;

300-flushing the pipeline;

400-a metering bucket; 410-a first opening; 420-a removable cover; 430-a rotating shaft; 441-a second electrode; 442-a wire harness; 450-a gap;

500-a detergent box; 510-a collection tank;

600-liquid extraction pipe;

700-funnel for liquid collection.

Detailed Description

In the related art, the detergent feeding device of the washing machine is mainly realized by a suction pump, which results in a complex structure of the detergent feeding device of the washing machine, and on the other hand, the suction pump is not only high in cost and power consumption, but also increases the failure probability.

In order to solve the above technical problems, the present invention provides a washing apparatus and a control method of the washing apparatus, in which a three-way electromagnetic valve is electrically connected to a main control module, so that the main control module can control the operating state of the three-way electromagnetic valve. The inlet of the three-way electromagnetic valve is communicated with the water inlet of the washing device, the first outlet of the three-way electromagnetic valve is communicated with the inlet end of the negative pressure pipeline, and the outlet end of the negative pressure pipeline is communicated with the washing barrel, so that when the main control module controls the inlet of the three-way electromagnetic valve to be communicated with the first outlet, inlet water can enter the washing barrel through the negative pressure pipeline. Through the second export with three solenoid valve and the entrance point intercommunication that washes the pipeline, wash the exit end and the measuring drum intercommunication of pipeline, the bottom of measuring drum is provided with the removable cover, and when the removable cover was opened, the measuring drum and the washtub intercommunication to when master control module control three solenoid valve's entry and second export intercommunication, the intaking can get into in the measuring drum via washing the pipeline, and get into in the washtub via the measuring drum.

Meanwhile, the negative pressure region of the negative pressure pipeline is communicated with the metering barrel, and the metering barrel is communicated with the detergent box, so that when inlet water flows through the negative pressure pipeline, the negative pressure region of the negative pressure pipeline can generate negative pressure to suck detergent in the detergent box into the metering barrel; therefore, the water entering the measuring bucket through the flushing pipeline can flush the detergent in the measuring bucket into the washing bucket. On the one hand, the washing device can realize the putting of the detergent without a suction pump, has simple structure, saves electric energy and has low failure rate, thereby not only being beneficial to reducing the cost of the washing device, but also being beneficial to improving the reliability of the washing device. On the other hand, the washing device can realize the purpose of controlling the adding amount of the detergent by controlling the working state of the three-way electromagnetic valve, has simple structure and convenient control, and is not easy to make mistakes.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

FIG. 1 is a first schematic structural diagram of a washing apparatus according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a second washing apparatus according to an embodiment of the present invention; FIG. 3 is a schematic structural diagram III of a washing apparatus according to an embodiment of the present invention; FIG. 4 is a schematic top view of a washing apparatus with a metering tank connected to a flushing line according to an embodiment of the present invention; FIG. 5 is a first schematic sectional view of a three-way solenoid valve of the washing apparatus according to the embodiment of the present invention; FIG. 6 is a schematic sectional view of a three-way solenoid valve of the washing apparatus according to the embodiment of the present invention; fig. 7 is a third schematic sectional view of a three-way solenoid valve of the washing apparatus according to the embodiment of the present invention.

Referring to fig. 1 to 7, the present embodiment provides a washing apparatus including, but not limited to, a drum washing machine, a pulsator washing machine, a dishwasher, and the like.

The washing device comprises a three-way electromagnetic valve 100, a negative pressure pipeline 200, a flushing pipeline 300, a metering barrel 400, a detergent box 500, a washing barrel and a main control module. The three-way solenoid valve 100 is electrically connected to the main control module, and the main control module is configured to control a state of the three-way solenoid valve 100. Illustratively, the master control module includes, but is not limited to, a circuit board and a chip; the three-way solenoid valve 100 includes, but is not limited to, a three-position three-way solenoid valve 100 and a two-position three-way solenoid valve 100.

Specifically, the inlet 113 of the three-way solenoid valve 100 is communicated with the water inlet of the washing device, for example, the inlet 113 of the three-way solenoid valve 100 may be communicated with the water inlet of the washing device through a pipeline, or the three-way solenoid valve 100 may be directly communicated with the water inlet of the washing device. The water inlet of the washing device can be communicated with the water tap through the water inlet pipe, so that water flow can enter the washing device.

The first outlet 111 of the three-way solenoid valve 100 communicates with an inlet end of the negative pressure pipeline 200, and an outlet end of the negative pressure pipeline 200 communicates with a washing tub (not shown). For example, the outlet end of the negative pressure pipeline 200 may be directly communicated with the washing tub, or the outlet end of the negative pressure pipeline 200 may be communicated with the washing tub through a pipeline or other communication device. When the main control module controls the inlet 113 of the three-way solenoid valve 100 to communicate with the first outlet 111, the inlet water may enter into the washing tub through the negative pressure pipeline 200.

The second outlet 112 of the three-way solenoid valve 100 is communicated with the inlet end of the flushing pipeline 300, the outlet end of the flushing pipeline 300 is communicated with the metering barrel 400, the bottom of the metering barrel 400 is provided with a movable cover 420, and when the movable cover 420 is opened, the metering barrel 400 is communicated with the washing barrel. For example, the movable cover 420 may be opened or closed by pressure variation, by a motor, or by manual operation. The bottom of the metering tank 400 may be in direct communication with the wash tub or may be in communication with the wash tub via a conduit or other communication means. When the master control module controls the inlet 113 of the three-way solenoid valve 100 to communicate with the second outlet 112, the inlet water can enter the measuring tank 400 through the flushing pipeline 300 and enter the washing tank through the measuring tank 400.

The negative pressure region of the negative pressure pipeline 200 is communicated with the metering bucket 400, and the metering bucket 400 is communicated with the detergent box 500. When water flows through the negative pressure pipeline 200, a negative pressure region of the negative pressure pipeline 200 may generate a negative pressure to suck the detergent in the detergent box 500 into the measuring tub 400.

Illustratively, the negative pressure pipeline 200 comprises a first connecting pipe section 210, a second connecting pipe section 220 and a venturi pipe section 230, wherein the first connecting pipe section 210 is communicated between an inlet of the venturi pipe section 230 and the first outlet 111 of the three-way solenoid valve 100; the second connecting pipe section 220 communicates between the outlet of the venturi section 230 and the washing tub. The throat of the venturi section 230 forms a negative pressure region of the negative pressure pipeline 200, the throat of the venturi section 230 may be communicated with the top of the metering barrel 400 through the air suction pipe 240, and both ends of the air suction pipe 240 are respectively in sealed communication with the throat of the venturi section 230 and the top of the metering barrel 400. The metering tank 400 and the detergent box 500 may communicate with each other through a pipe.

Optionally, the diameters, lengths, extending directions, and the like of the first connecting pipe section 210 and the second connecting pipe section 220 may be set according to actual needs, as long as the requirements of the present embodiment can be met, and no specific limitation is made here.

In a possible operation mode, the main control module firstly controls the inlet 113 and the first outlet 111 of the three-way solenoid valve 100 to communicate with each other, so that the inlet water flows through the venturi tube section 230 of the negative pressure pipeline 200, and negative pressure is generated inside the venturi tube section 230 to suck the detergent in the detergent box 500 into the metering tub 400; the master control module then controls the inlet 113 and the second outlet 112 of the three-way solenoid valve 100 to communicate, so that the inlet water enters the measuring tank 400 through the flushing pipeline 300 to flush the detergent in the measuring tank 400 into the washing tank. Therefore, the feeding of the detergent can be realized, the structure is simple, the electric energy is saved, the failure rate is low, the cost of the washing device is favorably reduced, and the reliability of the washing device is improved. Meanwhile, the purpose of controlling the feeding amount of the detergent is realized by controlling the state of the three-way electromagnetic valve 100, and the detergent feeding device has the advantages of simple structure, convenience in control, low possibility of error, high precision and low failure rate.

In the related art, there are washing machines that suck and put detergent by negative pressure pipeline, and the method of controlling the putting precision of detergent in such washing machines is realized by controlling the suction time, but the precision is low; the other is realized by a flowmeter, but the cost is higher.

In this embodiment, a first electrode (not shown) is disposed on the inner bottom wall of the measuring tank 400, at least two second electrodes 441 are disposed on the inner side wall of the measuring tank 400 at intervals along the height direction of the measuring tank 400, and the polarities of the first electrode and the second electrodes 441 are opposite. For example, the first electrode may be a positive electrode and the second electrode 441 is a negative electrode, or the first electrode may be a negative electrode and the second electrode 441 is a positive electrode. The first electrode and the second electrode 441 are electrically connected to the main control module, for example, the first electrode and the second electrode 441 may be electrically connected to the main control module through a conducting wire 442, and the main control module is configured to determine the volume of the detergent in the measuring tank 400 according to the conducting state of the first electrode and the second electrode 441.

Illustratively, the detergent is usually an electrically conductive liquid, and in the process of injecting the detergent into the measuring tank 400, as the liquid level of the detergent rises, the detergent sequentially immerses the second electrodes 441 at different heights from low to high, and the main control module monitors that the circuit formed by the immersed second electrodes 441 and the first electrodes is turned on, so that the liquid level height in the measuring tank 400 can be determined relatively simply and quickly, and the amount of the detergent entering the measuring tank 400 can be determined. For example, the plurality of second electrodes 441 arranged from the bottom of the metering drum 400 toward the top of the metering drum 400 may correspond to a 1 ml level, a 2 ml level, a 3 ml level, etc. of the metering drum, respectively. At this time, when the main control module detects that the third second electrode 441 arranged from the bottom of the measuring bucket 400 toward the top of the measuring bucket 400 is turned on, it may be determined that the amount of the detergent in the measuring bucket 400 is 3 ml.

In a possible operation mode, when the main control module detects that the input amount of the detergent meets the requirement, the main control module may control the three-way solenoid valve 100 to switch to a state where the inlet 113 is communicated with the second outlet 112, so that the inlet water enters the measuring tank 400 and washes the detergent in the measuring tank 400 into the washing tank. Therefore, the input amount of the detergent can be accurately controlled, the detergent residues on the clothes due to excessive input of the detergent can be avoided, or the clothes cannot be washed cleanly due to insufficient input, and the user experience can be improved; and a flowmeter is not needed, so that the cost is reduced.

Optionally, the washing device is configured to have a weighing function for weighing the laundry in the washing tub. The main control module is configured to determine the adding volume of the detergent according to the weight of the to-be-washed clothes.

For example, the washing device may weigh the laundry in the washing tub by using a motor for driving the washing tub to rotate, and transmit the weight data to the main control module, so that the main control module may determine the putting volume of the detergent according to the weight of the laundry.

Optionally, a first opening 410 is disposed at the top of the sidewall of the metering barrel 400, and the outlet end of the flushing line 300 is communicated with the metering barrel 400 through the first opening 410. Illustratively, the outlet end of the flushing line 300 may directly interface with the first opening 410 and be sealingly connected thereto; alternatively, the outlet end of the flushing line 300 may extend into the metering bucket 400 through the first opening 410, and the outer wall of the flushing line 300 is hermetically connected with the first opening 410.

The axial direction of the outlet end of the flushing pipe 300 and the axial direction of the metering bucket 400 are staggered, for example, the metering bucket 400 may be cylindrical, and the axial direction of the outlet end of the flushing pipe 300 may be tangential to the inner peripheral wall of the metering bucket 400. When intaking gets into measuring tank 400 via wash pipeline 300, rivers can form rotatory rivers along the inner wall nature of measuring tank 400 to accelerate under the effect of gravity and rotate around the internal perisporium of measuring tank 400, with thoroughly wash out the thick detergent that is infected with on the internal perisporium of clean measuring tank 400, thereby can guarantee that the input of detergent is accurate.

Optionally, the measuring barrel 400 and the detergent box 500 are communicated through the liquid extracting pipe 600, and the liquid extracting pipe 600 is a hard pipe, for example, to prevent the liquid extracting pipe 600 from being deformed when receiving a negative pressure. The first end of the extractor tube 600 extends through the top of the sidewall of the measuring bucket 400 and into the measuring bucket 400. For example, a second opening may be provided at the top of the sidewall of the measuring bucket 400, through which the liquid suction pipe 600 extends into the measuring bucket 400, and the outer sidewall of the liquid suction pipe 600 is connected with the second opening in a sealing manner. A second end of the liquid extracting pipe 600 extends to the bottom of the detergent box 500, and, for example, a filter screen may be provided at the second end of the liquid extracting pipe 600.

Optionally, the portion of the liquid-extracting tube 600 located inside the measuring bucket 400 is inclined downwards along the sidewall of the measuring bucket 400 towards the center of the measuring bucket 400, so as to avoid that when the liquid-extracting tube 600 stops pumping, the detergent at the nozzle flows down slowly along the inner wall of the measuring bucket 400 and remains on the inner wall of the measuring bucket 400 in a large amount.

Optionally, the portion of liquid suction pipe 600 outside measuring tank 400, along the downward sloping of the direction of keeping away from measuring tank 400 to can avoid liquid suction pipe 600 suction when stopping again have partial detergent to flow into measuring tank 400 in, and then be favorable to guaranteeing the accuracy of the input volume of detergent.

It should be noted that, the first end of the liquid-extracting pipe 600 penetrates through the side wall of the measuring barrel 400 and extends into the measuring barrel 400 for a relatively short length, so that when the liquid-extracting pipe 600 stops pumping, the detergent in the liquid-extracting pipe 600 outside the measuring barrel 400 falls back into the detergent box 500, and at the same time, the detergent in the liquid-extracting pipe 600 inside the measuring barrel 400 can be sucked out, so as to prevent the detergent in the liquid-extracting pipe 600 inside the measuring barrel 400 from continuing to enter the measuring barrel 400, thereby being beneficial to further ensuring the accuracy of the dosage of the detergent.

Optionally, the liquid extracting tube 600 extending into the measuring barrel 400 and the second electrode 441 are vertically staggered, that is, the liquid extracting tube 600 extending into the measuring barrel 400 is not disposed right above the second electrode 441, so that the detergent entering into the measuring barrel 400 from the liquid extracting tube 600 can be prevented from interfering with the testing accuracy of the second electrode 441.

Alternatively, the bottom wall of the detergent box 500 is provided with a collecting groove 510 depressed downward, and the suction pipe 600 extends into the collecting groove 510. For example, the bottom wall of the detergent box 500 may be inclined in a direction from the edge of the bottom wall of the detergent box 500 to the collection tank 510, so that the detergent at the bottom of the detergent box 500 can be collected into the collection tank 510 more quickly, and thus the detergent can be pumped even when the detergent level in the detergent box 500 is low. An air hole may be formed at the top of the detergent box 500 to ensure that the suction pipe can smoothly suck the detergent in the detergent box 500.

Optionally, the washing device further includes a liquid collecting funnel 700, the outlet end of the negative pressure pipeline 200 and the bottom of the measuring bucket 400 both extend into the liquid collecting funnel 700, and the bottom outlet of the liquid collecting funnel 700 is communicated with the washing bucket, so that not only can the water inlet of the negative pressure pipeline 200 and the water mixed with the detergent in the measuring bucket 400 be smoothly guided into the washing bucket for washing clothes, but also the overflow and the spilling can be prevented.

Alternatively, the three-way solenoid valve 100 includes a valve body 110 and a valve spool 120 accommodated in the valve body 110, and the inlet 113, the first outlet 111, and the second outlet 112 are all provided on the valve body 110. When the valve core 120 moves to the first position, the inlet 113 is communicated with the first outlet 111, and the inlet water enters the washing tub through the negative pressure pipeline 200; when the valve core 120 moves to the second position, the inlet 113 is communicated with the second outlet 112, and the inlet water enters the metering barrel 400 through the flushing pipeline 300 and then enters the washing barrel; when the valve core 120 moves to the third position, the inlet 113 is not communicated with the first outlet 111 and the second outlet 112, and no water flows into the washing device.

Alternatively, the bottom of the measuring bucket 400 is integrally opened, the movable cover 420 is rotatably connected to the bottom of the measuring bucket 400 through the rotating shaft 430 and the torsion spring, and when the washing device is not in operation, a gap 450 is formed between the movable cover 420 and the bottom of the measuring bucket 400. Illustratively, a torsion spring is disposed through the rotating shaft 430, and two ends of the torsion spring respectively act on the measuring bucket 400 and the movable cover 420. The movable cap 420 may be a relatively thin plastic cap.

Under the natural state, that is, when the negative pressure pipeline 200 does not produce negative pressure, the movable cover 420 is opened with a small included angle between the bottom of the metering barrel 400 under the combined action of self gravity and torsion spring torsion, so that not only when the negative pressure pipeline 200 produces negative pressure, the gap 450 is air-in to enable the movable cover 420 to more thoroughly close the bottom opening of the metering barrel 400, but also when the flushing pipeline 300 is completely flushed, residual liquid in the metering barrel 400 can be more thoroughly drained, and the accuracy of next metering of the metering barrel 400 is ensured. The opening of the removable cap 420 may be oriented to the outlet of the funnel 700 so that the liquid flowing from the measuring bucket 400 into the funnel 700 may be quickly drained to avoid overflow.

Optionally, a sealing member is disposed at a position where the movable cover 420 is butted with the metering bucket 400; alternatively, a seal may be provided where the metering bucket 400 interfaces with the removable lid 420. Exemplary seals include, but are not limited to, sealants and gaskets.

In summary, the washing apparatus provided in this embodiment electrically connects the three-way solenoid valve 100 to the main control module, so that the main control module can control the state of the three-way solenoid valve 100. The inlet 113 of the three-way electromagnetic valve 100 is communicated with the water inlet of the washing device, the first outlet 111 of the three-way electromagnetic valve 100 is communicated with the inlet end of the negative pressure pipeline 200, and the outlet end of the negative pressure pipeline 200 is communicated with the washing tub, so that when the main control module controls the inlet 113 of the three-way electromagnetic valve 100 to be communicated with the first outlet 111, the inlet water can enter the washing tub through the negative pressure pipeline 200. Through the second outlet 112 of the three-way solenoid valve 100 and the inlet end of the flushing pipeline 300, the outlet end of the flushing pipeline 300 is communicated with the metering barrel 400, the bottom of the metering barrel 400 is provided with the movable cover 420, when the movable cover 420 is opened, the metering barrel 400 is communicated with the washing barrel, so that when the main control module controls the inlet 113 of the three-way solenoid valve 100 to be communicated with the second outlet 112, the inlet water can enter the metering barrel 400 through the flushing pipeline 300 and enter the washing barrel through the metering barrel 400.

Meanwhile, the metering barrel 400 is communicated with the detergent box 500 by arranging the negative pressure area of the negative pressure pipeline 200 to be communicated with the metering barrel 400, so that when inlet water flows through the negative pressure pipeline 200, the negative pressure area of the negative pressure pipeline 200 generates negative pressure to suck the detergent in the detergent box 500 into the metering barrel 400; the water entering the measuring tank 400 through the flushing line 300 can flush the detergent in the measuring tank 400 into the washing tank. On the one hand, the washing device can realize the putting of the detergent without a suction pump, has simple structure, saves electric energy and has low failure rate, thereby not only being beneficial to reducing the cost of the washing device, but also being beneficial to improving the reliability of the washing device. On the other hand, the washing device can realize the purpose of controlling the adding amount of the detergent by controlling the state of the three-way electromagnetic valve 100, and has the advantages of simple structure, convenient control and difficult error.

Example two

Fig. 8 is a flowchart illustrating a control method of a washing apparatus according to an embodiment of the present invention.

Referring to fig. 8, the present embodiment provides a control method of a washing apparatus, which can be applied to the washing apparatus of the first embodiment, and optionally, the main executing body of the control method of the washing apparatus includes, but is not limited to, a main control module, a computer, and a mobile terminal. The control method of the washing device comprises the following steps:

s100: and obtaining the dosage of the detergent.

For example, the dosage of the detergent can be manually input, and can also be set by the main control module.

In one possible implementation, obtaining the dosage of the detergent comprises:

s110: the weight of the laundry in the washing tub is obtained.

For example, the weight of the laundry in the washing tub may be obtained through a weighing function of the washing device.

S120: and determining the adding volume of the detergent according to the weight of the to-be-washed object.

For example, a mapping relationship may be preset in the main control module, for example, the weight a corresponds to the release volume B; the weight C corresponds to the putting volume D; the weight E corresponds to the dosing volume F, etc., wherein the weight a, the weight C and the weight E may be specific values or may be a range of values.

S130: a second electrode corresponding to the delivered volume is determined.

Illustratively, when the feeding volume is 3 ml, the liquid level of the measuring barrel marked by the second electrode corresponding to the feeding volume is also 3 ml; when the charging volume is 5 ml, the liquid level of the measuring barrel marked by the second electrode corresponding to the charging volume is also 5 ml. At this time, the main control module may only monitor whether a circuit formed by the second electrode and the first electrode corresponding to the dosing volume is conducted.

S200: the inlet of the control three-way electromagnetic valve is communicated with the first outlet.

At the moment, the inlet water enters the washing barrel through the negative pressure pipeline, and the venturi tube section of the negative pressure pipeline generates negative pressure so as to suck the detergent in the detergent box into the metering barrel.

S300: and acquiring and judging whether the actual amount of the detergent in the metering bucket is equal to the put amount.

For example, the actual amount of detergent in the measuring tank can be obtained by weighing and compared with the put amount; the actual amount of detergent in the measuring tank can also be obtained by the time of pumping the detergent and compared with the put amount.

In one possible implementation, obtaining and determining whether the actual amount of detergent in the measuring tank is equal to the dosing amount comprises:

and judging whether the second electrode corresponding to the putting volume is conducted with the first electrode.

If yes, S310: the inlet of the control three-way electromagnetic valve is communicated with the second outlet.

At the moment, the detergent entering the metering barrel meets the feeding amount, the main control module controls the inlet of the three-way electromagnetic valve to be communicated with the second outlet so as to stop the metering barrel from sucking the detergent, and the inlet water enters the metering barrel through the flushing pipeline so as to flush the detergent in the metering barrel into the washing barrel.

If not, controlling the inlet of the three-way electromagnetic valve to be continuously communicated with the first outlet, and continuously pumping the detergent into the metering bucket until the amount of the detergent in the metering bucket is equal to the put amount.

In a possible working mode, after the washing machine is started, firstly, clothes are weighed, the detergent adding amount can be determined after the weight is obtained, a second electrode corresponding to the adding amount is found, and whether a circuit corresponding to the second electrode is conducted or not is independently monitored.

Controlling the inlet of the three-way electromagnetic valve to be communicated with the first outlet, so that inlet water flows through the venturi tube section of the negative pressure pipeline, the throat part of the venturi tube section generates negative pressure, and the rest parts of the metering barrel except a small gap between the metering barrel and the movable cover are sealed; the liquid suction pipe is viscous due to detergent, suction needs certain resistance, air can gush from a gap between the movable cover and the measuring bucket, and the gushed air can enable the movable cover to rapidly seal the measuring bucket. After the metering barrel is sealed, the only inlet capable of reducing pressure is the liquid pumping pipe, the liquid pumping pipe starts to pump the detergent into the metering barrel, at the moment, the gap at the bottom of the metering barrel is closed, the detergent is prevented from being leaked, and the metering accuracy is guaranteed.

When the main control module monitors the conduction current of the second electrode corresponding to the putting amount, the inlet of the three-way electromagnetic valve can be controlled to be communicated with the second outlet, so that the inlet water enters the metering barrel through the flushing pipeline in a rotating mode, and the detergent on the inner peripheral wall of the metering barrel is flushed. Since the negative pressure has disappeared at this time, the weight of the detergent and the weight of the water cause the movable lid to open rapidly to discharge the mixed liquid of the detergent and the water into the liquid-collecting funnel and finally into the washing tub.

And the inlet of the three-way electromagnetic valve can be controlled to be disconnected from the first outlet and the second outlet for a specific time.

In summary, the control method of the washing device provided by the embodiment can control the feeding amount of the detergent by controlling the working state of the three-way electromagnetic valve, and has the advantages of simple structure, convenient control and difficult error. Moreover, because the control method of the washing device is applied to the washing device, the control method of the washing device can realize the control of the dosage of the detergent without controlling the suction pump, thereby being beneficial to reducing the failure probability of control and further being beneficial to improving the reliability of the control method of the washing device.

In the description of the present application, it is to be understood that the terms "top," "bottom," "upper," "lower" (if any), and the like, as used herein, refer to an orientation or positional relationship as shown in the drawings, which are used for convenience in describing the present invention and to simplify description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The terms "first" and "second" in the description and claims of the present application and the description of the above-described figures are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A washing device is characterized by comprising a three-way electromagnetic valve, a negative pressure pipeline, a flushing pipeline, a metering barrel, a detergent box, a washing barrel and a main control module;

the inlet of the three-way electromagnetic valve is communicated with the water inlet of the washing device; a first outlet of the three-way electromagnetic valve is communicated with an inlet end of the negative pressure pipeline, and an outlet end of the negative pressure pipeline is communicated with the washing barrel; a second outlet of the three-way electromagnetic valve is communicated with an inlet end of the flushing pipeline, and an outlet end of the flushing pipeline is communicated with the metering barrel;

the negative pressure area of the negative pressure pipeline is communicated with the metering barrel, and the metering barrel is communicated with the detergent box; the bottom of the metering barrel is provided with a movable cover, and when the movable cover is opened, the metering barrel is communicated with the washing barrel;

the three-way electromagnetic valve is electrically connected with the main control module, and the main control module is configured to control the working state of the three-way electromagnetic valve.

2. The washing device as claimed in claim 1, wherein the inner bottom wall of the measuring bucket is provided with a first electrode, the inner side wall of the measuring bucket is provided with at least two second electrodes at intervals along the height direction of the measuring bucket, and the polarities of the first electrode and the second electrode are opposite; the first electrode and the second electrode are both electrically connected with the main control module, and the main control module is configured to judge the volume of detergent in the metering barrel according to the conduction state of the first electrode and the second electrode; and/or the presence of a gas in the gas,

the washing device is configured to have a weighing function for weighing the laundry in the washing tub; the main control module is configured to determine the adding volume of the detergent according to the weight of the to-be-washed object.

3. The washing apparatus as recited in claim 1 wherein the top of the side wall of the metering tank is provided with a first opening through which the outlet end of the flushing line communicates with the metering tank;

the axial direction of the outlet end of the flushing pipeline and the axial direction of the metering barrel are mutually staggered.

4. The washing apparatus as recited in claim 1 wherein the metering tank and the detergent box are in communication via an extractor tube, a first end of the extractor tube extending through a top portion of a sidewall of the metering tank and into the metering tank, and a second end of the extractor tube extending to a bottom portion of the detergent box.

5. The washing apparatus as recited in claim 4 wherein the portion of the extractor tube located within the metering drum is sloped downwardly in a direction from the sidewall of the metering drum toward the center of the metering drum; and/or the presence of a gas in the gas,

the part of the liquid extracting pipe, which is connected outside the metering barrel, is downwards inclined along the direction far away from the metering barrel; and/or the presence of a gas in the gas,

the bottom wall of the detergent box is provided with a collecting groove which is concave downwards, and the liquid pumping pipe extends into the collecting groove.

6. The washing device as claimed in any one of claims 1 to 5, further comprising a funnel, wherein the outlet end of the negative pressure line and the bottom of the metering barrel both extend into the funnel, and the bottom outlet of the funnel is in communication with the washing barrel; and/or the presence of a gas in the gas,

the negative pressure pipeline comprises a first connecting pipe section, a second connecting pipe section and a Venturi pipe section, the first connecting pipe section is communicated between an inlet of the Venturi pipe section and the first outlet, and the second connecting pipe section is communicated between an outlet of the Venturi pipe section and the washing tub; the throat part of the Venturi tube section is communicated with the top of the metering barrel through an air suction pipe.

7. The washing apparatus as claimed in any one of claims 1 to 5, wherein the three-way solenoid valve comprises a valve body and a valve cartridge received in the valve body, the inlet, the first outlet and the second outlet being provided on the valve body;

the inlet port communicates with the first outlet port when the spool moves to a first position, communicates with the second outlet port when the spool moves to a second position, and does not communicate with both the first outlet port and the second outlet port when the spool moves to a third position.

8. The washing device as claimed in any one of claims 1 to 5, wherein the bottom of the measuring tank is integrally open, and the movable cover is rotatably connected to the bottom of the measuring tank through a rotating shaft and a torsion spring; when the washing device is not in operation, a gap is formed between the movable cover and the bottom of the metering barrel; and/or the presence of a gas in the gas,

a sealing element is arranged at the butt joint position of the movable cover and the metering barrel; and/or the presence of a gas in the gas,

and a sealing element is arranged at the butt joint position of the metering barrel and the movable cover.

9. A control method of a washing apparatus, comprising:

obtaining the adding amount of the detergent;

the inlet of the control three-way electromagnetic valve is communicated with the first outlet;

acquiring and judging whether the actual amount of the detergent in the metering barrel is equal to the put amount or not;

if so, controlling the communication between the inlet of the three-way electromagnetic valve and the second outlet.

10. The method for controlling a washing apparatus according to claim 9, wherein the obtaining of the amount of detergent to be added comprises:

acquiring the weight of the object to be washed in the washing barrel;

determining the adding volume of the detergent according to the weight of the to-be-washed object;

determining a second electrode corresponding to the dosing volume;

the obtaining and determining whether an actual amount of detergent in the measuring tank is equal to the dosing amount comprises:

and judging whether the second electrode corresponding to the putting volume is conducted with the first electrode.

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