Washing machine control method and washing machine

Abstract

The invention provides a control method of a washing machine and the washing machine. The washing machine comprises a circulating spraying system for feeding water into the washing machine; detecting an actual water level L in the washing machine; and when the actual water level L is greater than the preset water level L0, stopping feeding water into the washing machine, and controlling the circulating spraying system to spray water in the washing machine onto the clothes, so that the clothes are completely wetted. The water level in the washing machine is detected during water feeding, when the actual water level in the washing machine is larger than the preset water level L0, water feeding into the washing machine is stopped, and the water in the washing machine is sprayed to clothes through the circulating spraying system, so that the clothes can be completely wetted before being washed or rinsed; therefore, the additive dissolved in the water can deeply permeate into the clothes, and the washing effect of the clothes is improved while water is saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular, relates to a control method for a washing machine and a washing machine. Background Art

[0002] At present, most washing machines have a water supply method that water is directly added to the washing machine to the set water level after weighing or setting the water level. Some washing machines, although equipped with a spray circulation system, also continue to add water to the washing machine, and the circulation pump is turned on for a certain period of time during the water supply until the water is added to the weighing or setting water level. The disadvantage of this water supply method is that due to the too fast water supply, most of the washing powder is directly washed to the bottom of the washing machine or the clothes that the water flow can reach, and the clothes in the middle may not be soaked; and if the washing is directly washed after the water supply is completed, the washing powder will not have time to completely dissolve, affecting the washing effect; the above water supply method also has another disadvantage, that is, in order to quickly soak all the clothes, a large amount of water will be added to make the water level fully submerge the clothes, which increases the water consumption and causes water waste.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a control method for a washing machine and a washing machine. By detecting the water level inside the washing machine when water is inlet, when the actual water level inside the washing machine is greater than the preset water level L0, water inlet to the washing machine is stopped, and the water in the washing machine is sprayed onto the clothes by a circulating spray system, so that the clothes can be completely soaked before washing or rinsing, so that the additives dissolved in the water can penetrate deeply into the clothes, so as to achieve the purpose of saving water and improving the washing effect of the clothes.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] The present invention provides a control method for a washing machine, wherein the washing machine comprises a circulating spray system.

[0007] Fill the washing machine with water;

[0008] Detecting the actual water level L in the washing machine;

[0009] When the actual water level L is greater than the preset water level L0, water is stopped from entering the washing machine, and the circulating spray system is controlled to spray the water in the washing machine onto the clothes, making the clothes completely wet.

[0010] Furthermore, during the process of the circulating spraying system spraying water onto the clothes, the actual water level L in the washing machine is continuously detected. When the actual water level value L reaches the preset water level L1, the circulating spraying system is controlled to stop spraying water onto the clothes. The preset water level L1 is less than the preset water level L0.

[0011] Furthermore, continue to add water to the washing machine and detect the actual water level L in the washing machine, and repeat this cycle until the water level in the washing machine is always maintained between less than or equal to the preset water level L0 and greater than the preset water level L1 within the preset time, so that the clothes are completely wet.

[0012] Furthermore, the washing machine includes an inner drum and an outer drum, the circulating spray system includes a heater arranged in the outer drum, the preset water level value LO is less than or equal to the height difference between the bottom of the inner drum and the bottom of the outer drum, and the preset water level value L1 is the outer drum water level value to prevent the heater from drying out.

[0013] Further, the washing machine maintains washing the clothes at a water level that is less than or equal to a preset water level L0 and greater than a preset water level L1; and / or,

[0014] The washing machine rinses clothes at a water level that is less than or equal to a preset water level L0 and greater than a preset water level L1, and during the rinsing process, water is added to the washing machine while the rinse water in the washing machine is discharged, while the circulating spray system is controlled to spray water on the clothes.

[0015] Furthermore, the spray circulation system includes a spray port and a circulation pump arranged on the top of the washing machine window pad. When water is fed into the washing machine, a mixed solution of the water and the additive is sprayed from top to bottom onto the surface of the clothes through the spray port of the window pad;

[0016] When the circulating spray system sprays water on the clothes, the mixed solution of water and additives in the washing machine is extracted by the circulating pump, and the extracted mixed solution of water and additives is sprayed from top to bottom onto the surface of the clothes through the spray port of the window pad.

[0017] Furthermore, the circulating spray system sprays the water in the washing machine onto the clothes in an intermittent manner each time, and the inner drum rotates;

[0018] When the circulating spray system sprays water, the inner drum rotates at a first rotation speed, and when the circulating spray system stops spraying water, the inner drum rotates at a second rotation speed greater than the first rotation speed.

[0019] Furthermore, when the water level in the washing machine is maintained at a level less than or equal to the actual water level L and greater than the preset water level L1, the number of cycles of water filling into the washing machine and the circulating spray system spraying water is n. Before reaching the number of cycles n, if it is detected that the turbidity of the water in the washing machine is always less than the set turbidity within the preset time, water filling and spraying will no longer continue.

[0020] Furthermore, the water absorption rate of the clothes is a first water absorption rate, and the number of cycles of water entering the washing machine and spraying water through the circulating spray system is n. When the second water absorption rate of the clothes is a second water absorption rate greater than the first water absorption rate, the number of cycles of water entering the washing machine and spraying water through the circulating spray system is m, which is less than n.

[0021] The present invention also provides a washing machine, which is provided by the above technical solution.

[0022] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0023] By detecting the water level inside the washing machine when water is filling in, when the actual water level in the washing machine is greater than the preset water level L0, the water filling into the washing machine is stopped, and the water in the washing machine is sprayed onto the clothes using the circulating spray system, so that the clothes can be completely wet before washing or rinsing, so that the additives dissolved in the water can deeply penetrate into the clothes, thereby saving water and improving the washing effect of the clothes.

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0026] Figure 1 This is a flow chart of a method for controlling a washing machine provided by an embodiment of the present invention.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0029] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1 As shown, Figure 1 As shown, the present invention provides a control method for a washing machine, wherein the washing machine includes a circulating spray system, and water is introduced into the washing machine;

[0032] Detecting the actual water level L in the washing machine;

[0033] When the actual water level L is greater than the preset water level L0, water is stopped from entering the washing machine, and the circulating spray system is controlled to spray the water in the washing machine onto the clothes, making the clothes completely wet.

[0034] In an embodiment of the present invention, by detecting the water level inside the washing machine when filling water, when the actual water level inside the washing machine is greater than the preset water level L0, the water filling into the washing machine is stopped, and the water in the washing machine is sprayed onto the clothes by using a circulating spray system, so that the clothes can be completely wet before washing or rinsing, so that the additives dissolved in the water can deeply penetrate into the clothes, thereby improving the washing effect of the clothes; during the process, there is no need to fill the washing machine with water all the time, which can save water.

[0035] The washing machine is a drum washing machine, which comprises an outer shell, an outer drum arranged in the outer shell and an inner drum rotatably arranged in the outer drum, the actual water level in the outer drum is the actual water level in the washing machine; the clothes are completely wet means that the clothes have been full of water and can no longer absorb water.

[0036] A window pad is provided between the outer drum and the outer shell, and the circulating spray system includes a spray port provided on the top of the window pad and a circulating pump provided in the outer drum. The water inlet pipe of the washing machine connected to the faucet is communicated with the spray port. The external water inlet uses the spray port to feed water into the outer drum, and the spray port sprays the inlet water onto the clothes in the inner drum, thereby realizing water spraying on the clothes; a pipeline is serially connected to the circulating pump, and the pipeline is communicated with the spray port. The circulating pump draws water from the bottom of the outer drum to the spray port, and the spray port sprays the inlet water from the bottom of the outer drum onto the clothes in the inner drum, thereby realizing circulating spraying on the clothes.

[0037] A water inlet valve is provided on the water inlet pipe of the washing machine. By controlling the opening or closing of the water inlet valve, water can be supplied to the washing machine or stopped; by controlling the opening or closing of the circulation pump, the water in the outer drum can be sprayed onto the clothes or stopped.

[0038] Specifically, when water is fed into the washing machine, the water washes out the additives in the delivery box, and the mixed solution of the water and the additives is sprayed from the top of the outer drum to the bottom onto the surface of the clothes through the spray port of the window pad; when the circulating spray system sprays water on the clothes, the mixed solution of water and additives in the washing machine is drawn by the circulating pump, and the drawn mixed solution of water and additives is sprayed from the bottom of the outer drum to the bottom onto the surface of the clothes through the spray port of the window pad. The additives can be washing powder, softener, rinse agent, etc.

[0039] It should be noted that before water is added to the washing machine, it is detected whether there are clothes in the inner drum. If it is detected that there are clothes in the inner drum, water is added to the outer drum. If it is detected that there are no clothes in the inner drum, an alarm is issued to prompt the user to put clothes into the inner drum.

[0040] In an embodiment of the present invention, while the circulating spray system is spraying water onto clothes, the actual water level L in the washing machine is continuously detected. When the actual water level value L reaches a preset water level L1, the circulating spray system is controlled to stop spraying water onto the clothes. The preset water level L1 is less than the preset water level L0.

[0041] In an embodiment of the present invention, when the water inlet valve is closed and the circulating pump is turned on, the water in the washing machine is continuously circulated and sprayed onto the clothes, so that the clothes are continuously soaked, thereby gradually making the clothes completely soaked; as the clothes are continuously soaked, the actual water level in the washing machine continues to decrease. In order to prevent an empty water level from appearing in the outer drum, the circulating pump is turned off when the actual water level in the washing machine reaches a preset water level L1. Reaching the preset water level L1 indicates that the water in the washing machine is sucked into the clothes, and the ability of the clothes to absorb water has not reached saturation, that is, the clothes are not completely soaked.

[0042] Among them, the circulating spray system includes a heater arranged in the outer tube, the preset water level value LO is less than or equal to the height difference between the bottom of the inner tube and the bottom of the outer tube, and the preset water level value L1 is the outer tube water level value to prevent the heater from drying out.

[0043] Since there is a gap between the inner drum and the outer drum, there will always be water in the gap, making it impossible for the clothes to be absorbed. Therefore, the preset water level L0 is set to the maximum height difference between the bottom of the inner drum and the bottom of the outer drum. When the water level in the outer drum exceeds the preset water level L0, it means that the water entering the outer drum cannot be completely absorbed by the clothes. Therefore, it is necessary to close the water inlet valve, start the circulation pump, and circulate the water entering the outer drum to spray it onto the surface of the clothes so that the clothes absorb the water.

[0044] The heater can be used to heat the water in the outer drum so that the washing powder can be fully dissolved in the water in the outer drum; at the same time, it can speed up the dissolution of clothing stains. In order to prevent the heater from drying out in the outer drum, the lowest water level in the outer drum is set to L1, and the circulation pump is turned off when the water level in the outer drum drops to L1.

[0045] Furthermore, in order to determine whether the clothes are completely wet and whether the clothes can still absorb water, water is continued to be added to the washing machine and the actual water level L in the washing machine is detected, and this cycle is repeated until the water level in the washing machine is always maintained at less than or equal to the preset water level L0 and greater than the preset water level L1 within the preset time, so that the clothes are completely wet and can no longer absorb water, and there is no need to add water to the washing machine.

[0046] For example, after the circulation pump is turned on for the first time, the water level in the outer drum drops to below the preset water level L0, but above the preset water level L1. The circulation pump continues to be turned on, and it is found that during the second time, the water level in the outer drum of the circulation pump always remains less than or equal to the preset water level L0 and greater than the preset water level L1, indicating that the clothes can no longer absorb water, the clothes are full of water, and the clothes are completely wet.

[0047] It should be noted that in order to make the clothes completely wet, water is added to the outer drum and the circulating spray system sprays water multiple times. The additives can be completely washed into the outer drum when water is added to the outer drum for the first time, and the additives will no longer be washed when water is added subsequently, or the additives can be washed into the outer drum each time water is added.

[0048] In an embodiment of the present invention, the washing machine maintains a water level less than or equal to a preset water level L0 and greater than a preset water level L1 to wash the clothes; and / or,

[0049] The washing machine rinses clothes at a water level that is less than or equal to a preset water level L0 and greater than a preset water level L1, and during the rinsing process, water is added to the washing machine while the rinse water in the washing machine is discharged, while the circulating spray system is controlled to spray water on the clothes.

[0050] In the embodiment of the present invention, the washing machine washes clothes at a water level less than or equal to a preset water level L0 and greater than a preset water level L1, that is, the water is introduced to make the clothes completely wet, the clothes cannot absorb water, and no water continues to enter the outer drum, and the water level in the outer drum is always less than or equal to the height difference between the bottom of the inner drum and the bottom of the outer drum, and greater than the water level value of the outer drum to prevent the heater from drying out;

[0051] The clothes are washed and rinsed at the above water level without adding more water to the outer drum, which can save water resources. In addition, since the water retained in the outer drum is relatively small, the water only exists in the gap between the outer drum and the inner drum, and the outer drum is basically an empty drum without water, so when the inner drum lifts the clothes to the top of the washing machine, the clothes will not fall into the water when they fall, and the washing water retained in the outer drum will not have a buffering effect on the clothes. The clothes directly contact the wall of the inner drum, and the wall of the inner drum significantly hits the clothes, so the decontamination and rinsing effects are strong.

[0052] And during the rinsing process, water is added to the washing machine while the rinsing water is discharged, so that live water rinsing is achieved and the rinsing effect on the clothes is enhanced.

[0053] Preferably, when washing and rinsing clothes, the inner drum rotates and the circulation pump works, and the water beaten out of the clothes is drawn from the bottom of the outer drum and sprayed onto the surface of the clothes from top to bottom through the spray port.

[0054] Furthermore, the circulating spray system sprays the water in the washing machine onto the clothes in an intermittent manner each time, and the inner drum rotates;

[0055] When the circulating spray system sprays water, the inner drum rotates at a first rotation speed, and when the circulating spray system stops spraying water, the inner drum rotates at a second rotation speed greater than the first rotation speed.

[0056] To achieve complete soaking of clothes of a certain weight, the circulation pump sprays water on the clothes and the water inlet valve feeds water into the outer drum for n cycles. Each time the circulation pump sprays water on the clothes, the circulation pump sprays water intermittently, sprays water for the first time, stops spraying water for the second time, and then sprays water for the first time again, and repeats the cycle.

[0057] When spraying water, the inner drum rotates at a first speed, and the inner drum rotates at a lower speed, so that the spray port can spray water evenly onto the clothes. When not spraying water, the inner drum rotates at a second speed, and the inner drum rotates at a higher speed, so that the water sprayed onto the clothes can rotate in the inner drum, provide a larger external force, fully mix with the clothes, and quickly penetrate into the clothes.

[0058] In addition, during the washing process, the inner drum rotates at a third speed, which is greater than the second speed. The inner drum rotates at a higher speed, which enhances the beating of the clothes by the inner drum wall, thereby enhancing the decontamination energy for the clothes and increasing the washing effect on the clothes.

[0059] In an embodiment of the present invention, when the water level in the washing machine is maintained at a level less than or equal to the actual water level L and greater than the preset water level L1, the number of cycles of water filling into the washing machine and water spraying by the circulating spray system is n. Before the number of cycles n is reached, if it is detected that the turbidity of the water in the washing machine is always less than the set turbidity within a preset time, water filling and water spraying will no longer continue.

[0060] In an embodiment of the present invention, the clothes are completely soaked, and the number of cycles of the water inlet valve to feed water into the washing machine and the circulating pump to spray water onto the clothes is n. If the clothes are not completely soaked and the number of cycles does not reach n, it is detected that the turbidity of the water in the outer drum is always less than the set turbidity, indicating that the degree of dirtiness of the clothes is relatively small, and there is no need to soak the clothes completely, and there is no need to dissolve more detergent in the clothes, which can further solve the water resource problem.

[0061] For example, if the number of cycles n is 4, then if it is found that the turbidity of the water in the washing machine is always less than the set turbidity after the start of the second cycle and the end of the third cycle, the fourth cycle will not be performed.

[0062] A turbidity sensor is provided in the outer drum for detecting the turbidity of the water in the outer drum. The washing machine is provided with a control unit, which is respectively connected to the turbidity sensor, the circulation pump and the water inlet valve. The turbidity sensor transmits the turbidity information to the control unit, and the control unit controls the opening or closing of the circulation pump and the control valve according to the turbidity information.

[0063] In an embodiment of the present invention, the water absorption rate of the clothes is a first water absorption rate, and the number of cycles of water entering the washing machine and spraying water by the circulating spray system is n. When the second water absorption rate of the clothes is a second water absorption rate greater than the first water absorption rate, the number of cycles of water entering the washing machine and spraying water by the circulating spray system is m which is less than n.

[0064] In the embodiment of the present invention, different clothes are made of different materials, and different materials have different water absorption rates. The greater the water absorption rate, the stronger the water absorption capacity. For example, cotton clothes have stronger water absorption capacity and higher water absorption rate than leather clothes.

[0065] For clothes of the same weight and material, the greater the water absorption rate, the stronger the water absorption capacity, the smaller the number of cycles of water supply to the washing machine and the circulating spray system spraying water, and the shorter the water supply time before washing or rinsing, thereby improving the water supply efficiency. According to the water absorption rate of the clothes, the number of cycles is determined, thereby determining the water supply time before washing or rinsing.

[0066] When it is detected that the materials of the clothes in the inner drum are different, the materials of all the clothes are detected, and the water absorption rate of all the clothes is determined according to the materials of all the clothes. The smallest water absorption rate among all the clothes is selected, and the smallest water absorption rate is used as the water absorption rate of the clothes in the inner drum this time. The number of cycles is obtained based on the water absorption rate to ensure that the clothes can be completely soaked in the end.

[0067] If during the water intake process, it is detected by weight that the clothes in the inner drum are taken out of the inner drum, the clothes in the inner drum are reduced. Since the clothes in the inner drum are reduced, it is less difficult for the clothes to be completely soaked, so the number of cycles can be reduced.

[0068] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A method for controlling a washing machine, the washing machine comprising a circulating spray system, characterized in that: Fill the washing machine with water; Detecting the actual water level L in the washing machine; When the actual water level L is greater than the preset water level L0, water is stopped from entering the washing machine, and the circulating spray system is controlled to spray the water in the washing machine onto the clothes, making the clothes completely wet.

2. The control method according to claim 1, characterized in that: When the circulating spray system sprays water on the clothes, the actual water level L in the washing machine is continuously detected. When the actual water level value L reaches the preset water level L1, the circulating spray system is controlled to stop spraying water on the clothes. The preset water level L1 is less than the preset water level L0.

3. The control method according to claim 2, characterized in that: Continue to add water to the washing machine and detect the actual water level L in the washing machine, and repeat this cycle until the water level in the washing machine is always maintained between less than or equal to the preset water level L0 and greater than the preset water level L1 within the preset time, so that the clothes are completely wet.

4. The control method according to claim 3, characterized in that: The washing machine includes an inner drum and an outer drum, the circulating spray system includes a heater arranged in the outer drum, the preset water level value LO is less than or equal to the height difference between the bottom of the inner drum and the bottom of the outer drum, and the preset water level value L1 is the outer drum water level value to prevent the heater from drying out.

5. The control method according to claim 4, characterized in that: The washing machine maintains washing clothes at a water level less than or equal to a preset water level L0 and greater than a preset water level L1; and / or, The washing machine rinses clothes at a water level that is less than or equal to a preset water level L0 and greater than a preset water level L1, and during the rinsing process, water is added to the washing machine while the rinse water in the washing machine is discharged, while the circulating spray system is controlled to spray water on the clothes.

6. The control method according to claim 1, characterized in that: The spray circulation system includes a spray port and a circulation pump arranged on the top of the washing machine window pad. When water is fed into the washing machine, a mixed solution of the water and the additive is sprayed from top to bottom onto the surface of the clothes through the spray port of the window pad. When the circulating spray system sprays water on the clothes, the mixed solution of water and additives in the washing machine is extracted by the circulating pump, and the extracted mixed solution of water and additives is sprayed from top to bottom onto the surface of the clothes through the spray port of the window pad.

7. The control method according to any one of claims 1 to 6, characterized in that: The circulating spray system sprays the water in the washing machine onto the clothes intermittently each time, and the inner drum rotates; When the circulating spray system sprays water, the inner drum rotates at a first rotation speed, and when the circulating spray system stops spraying water, the inner drum rotates at a second rotation speed greater than the first rotation speed.

8. The control method according to claim 7, characterized in that: When the water level in the washing machine is maintained at a level less than or equal to the actual water level L and greater than the preset water level L1, the number of cycles of water filling into the washing machine and the circulating spray system spraying water is n. Before reaching the number of cycles n, if it is detected that the turbidity of the water in the washing machine is always less than the set turbidity within the preset time, water filling and spraying will no longer continue.

9. The control method according to claim 8, characterized in that: The water absorption rate of the clothes is the first water absorption rate, and the number of cycles of water entering the washing machine and the circulating spray system spraying water is n. When the second water absorption rate of the clothes is the second water absorption rate greater than the first water absorption rate, the number of cycles of water entering the washing machine and the circulating spray system spraying water is m which is less than n.

10. A washing machine, characterized in that: A control method for a washing machine according to any one of claims 1 to 9 is adopted.

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