Washing machine control method and washing machine

Abstract

The invention discloses a washing machine control method and a washing machine, the washing machine comprises a main water inlet path and a rotary spraying water inlet path, the control method comprises the steps that the main water inlet path is communicated, water with the main water inlet quantity is fed into a washing barrel, and the main water inlet quantity is smaller than the preset water inlet quantity; and closing the main water inlet waterway, performing washing or rinsing, and in the washing or rinsing process, controlling the impeller and / or the inner barrel to rotate, communicating the rotary spraying water inlet waterway, and performing rotary spraying water inlet on the washing barrel for a preset time t1. According to the washing machine, a part of water is firstly fed into the washing barrel, clothes can be wetted and soaked, subsequent washing or rinsing is facilitated, the total water feeding time is shortened, then washing or rinsing is performed, in the washing or rinsing process, the rotary spraying water inlet and the impeller and / or the inner barrel are controlled to rotate, and the rotary spraying water inlet and the impeller and / or the inner barrel are matched for washing or rinsing, so that the washing efficiency is improved. The clothes washing machine can improve the washing ratio or the rinsing effect of clothes, can save water, avoids too long washing or rinsing time, and saves energy.

Description

Technical Field

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

[0002] With the improvement of people's living standards, washing machines have gradually become one of the essential household appliances in people's homes. In the water inlet structure of ordinary washing machines, when washing or rinsing, the water inlet valve is opened first to let water flow into the washing tub. After the water is filled in, the washing tub rotates to wash or rinse. Clothes are easy to float on the water surface, especially down jackets and other items with empty interiors. If the water inlet is not aimed at the top of the clothes, the clothes will float on the upper part of the water surface, which may cause problems of incomplete washing or rinsing.

[0003] In order to solve the above problems, the existing pulsator washing machine is usually provided with a spray device on the upper part of the outer barrel. When the clothes in the washing machine are rinsed, the spray device is used to spray the incoming water for rinsing. In order to save water, for example, a rinsing control method of a washing machine is disclosed in the patent document with the announcement number CN105908442A. The washing machine includes a body, an inner barrel and a spray valve for controlling the spraying of washing water into the inner barrel. The inner barrel is arranged in the body, and the spray valve is arranged on the body. The control method includes the following steps: S10, detecting the weight m of the clothes to be rinsed; S20, setting the number of rinses n and the spraying time t1 of the spray valve during each rinse according to the weight m; S30, opening the spray valve to spray washing water into the inner barrel and continuing the spraying time t1, while the inner barrel rotates at a first speed v1; S40, closing the spray valve, and the inner barrel rotates at a second speed v2 to dehydrate the clothes; S50, stopping dehydration; S60, repeating the above steps S30-S50n-1 times. However, if the washing or rinsing is completely done by spraying water, a short spraying time will result in limited washing or rinsing effect, while a long spraying time will improve the washing or rinsing effect but will result in too long a rinsing time.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and the purpose is to provide a control method for a washing machine, by first supplying water into the washing tub to wet the clothes, and then performing rotary spraying water supply and rotating the impeller and / or the inner tub. The rotary spraying area is larger and the spraying effect is better. By combining the two for washing or rinsing, the dirt in the clothes can be washed or the dirt and detergent in the clothes can be rinsed out, which can not only ensure the water-saving effect, but also improve the washing effect and avoid the washing or rinsing time being too long.

[0006] Another object of the present invention is to provide a washing machine.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: to provide a control method for a washing machine, the washing machine includes two water inlets: a main water inlet and a rotary spray water inlet, and the control method includes

[0008] Water starts to enter;

[0009] The main water inlet waterway is connected to supply water of the main water inlet amount into the washing tub, and the main water inlet amount is less than the preset water inlet amount;

[0010] Close the main water inlet and perform washing or rinsing. During the washing or rinsing process, control the impeller and / or the inner tub to rotate, connect the rotary spray water inlet, and rotate and spray water into the washing tub for a preset time t1.

[0011] Furthermore, the main water inlet volume is n times of the preset water inlet volume, wherein 1 / 5≤n≤1 / 2.

[0012] Furthermore, the washing machine also includes a main water inlet washing program, and after the main water inlet, the pulsator and / or the inner tub are controlled to rotate at a preset rotation-stop ratio b to perform washing or rinsing;

[0013] In the control method, during the washing or rinsing process, the pulsator and / or the inner tub are controlled to rotate at a preset rotation-stop ratio a, which is smaller than the preset rotation-stop ratio b of the pulsator and / or the inner tub in the main water inlet washing program.

[0014] Furthermore, during the washing or rinsing process, the rotary spray water inlet water path connected to the rotary spray water inlet is first controlled to rotate and spray water, and then during the rotary spray water inlet process, the impeller and / or the inner tub are controlled to rotate at a preset rotation-stop ratio a;

[0015] Preferably, the impeller is controlled to rotate at a preset rotation-stop ratio a.

[0016] Furthermore, during the rotary spray water inlet process, the impeller is controlled to rotate at a preset rotation-stop ratio a, and then the total water inlet volume is obtained to determine whether the total water inlet volume reaches the preset water inlet volume, and then the rotary spray water inlet waterway is closed;

[0017] If not, it is further determined whether the rotary spray water inlet time reaches the preset time t1. If so, the rotary spray water inlet waterway is closed; if not, the rotary spray water inlet waterway continues to be connected.

[0018] Preferably, to determine whether the total water inflow has reached a preset water inflow, the rotary spray water inlet waterway is closed, and the impeller is controlled to continue rotating for a preset time t2, and the preset time t1 is greater than the preset time t2.

[0019] Furthermore, the washing machine also includes a heating module for heating water in the rotary spray water inlet waterway;

[0020] During the washing or rinsing process, the impeller is controlled to rotate, the heating module is controlled to work and the rotary spray water inlet water path is connected, and hot water is rotary sprayed into the washing tub for steam washing or rinsing.

[0021] Further, the following steps are included:

[0022] S1, water intake begins;

[0023] S2, connect the main water inlet waterway, add water to the washing tub to n times the preset water inlet volume, and add detergent, where 0<n<1;

[0024] S3, connecting the rotary spray water inlet water path, and rotating the spray water into the washing tub for a preset time t1 and then shutting down, and during the rotary spray water inlet process, controlling the impeller to rotate at a preset start-stop ratio a1;

[0025] S4, control the dehydration.

[0026] Furthermore, before step S1, the following steps are also included:

[0027] S0. Obtain the weight of the clothes, and obtain the corresponding preset water intake according to the weight of the clothes.

[0028] Furthermore, after step S4, the following steps are also included:

[0029] S5, connecting the main water inlet waterway, and then closing the main water inlet to n times of the preset water inlet volume in the washing tub;

[0030] S6, connecting the rotary spray water inlet water path, rotating the spray water into the washing tub for a preset time t1 and then shutting down, during the rotary spray water inlet process, controlling the impeller to rotate at a preset rotation-stop ratio a2 for rinsing, a2<a1;

[0031] S7, control the dehydration, detect whether the separated rinsing liquid meets the rinsing standard, if yes, then end; if not, execute step S5;

[0032] Preferably, in step S7, it is detected whether the rinsing liquid reaches the rinsing standard. If not, it is detected whether the number of rinsing and dehydration times is greater than or equal to a preset number. If so, it ends; if not, step S5 is executed.

[0033] The present invention also provides a washing machine having any of the above control methods;

[0034] Preferably, it also includes an outer barrel, with the barrel opening facing upward;

[0035] The outer barrel cover structure is used to close the barrel mouth of the outer barrel. The outer barrel cover structure is provided with an openable and closable inner cover, and the inner side of the inner cover is provided with a rotating spray device.

[0036] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0037] The control method of the present invention first controls a portion of the water volume of the main water inlet into the washing tub after water inlet starts for washing or rinsing, so as to wet the clothes and soak the clothes, facilitate subsequent washing or rinsing, increase the total water inlet speed, and reduce the water inlet washing or rinsing time. Then, during the washing or rinsing process, the rotary spray water inlet and the rotation of the impeller and / or the inner tub are controlled. The rotary spray area is larger and the spray effect is better, so the upper part of the clothes can be cleaned. The rotary spray water inlet and the impeller and / or the inner tub rotation are combined for washing or rinsing, which can wash the dirt in the clothes or rinse out the dirt and detergent in the clothes, thereby ensuring the water-saving effect and improving the washing effect, avoiding excessively long washing or rinsing time, and saving energy.

[0038] 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

[0039] 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:

[0040] Figure 1 is a flow chart of a washing machine control method of the present invention;

[0041] Figure 2 is a flow chart of another washing machine control method of the present invention;

[0042] Figure 3 The present invention Figure 1 A specific flow chart of

[0043] Figure 4 The present invention Figure 1 Another specific flow chart of

[0044] Figure 5 It is a flow chart of a washing machine washing control method of the present invention;

[0045] Figure 6 It is a partial structural schematic diagram of a pulsator washing machine of the present invention;

[0046] Figure 7 The present invention Figure 6 Schematic diagram of the inner cover opened

[0047] Figure 8It is a schematic diagram of an outer barrel cover structure of the present invention;

[0048] Fig. 9 It is a schematic diagram of another state of an outer barrel cover structure of the present invention;

[0049] Fig.10 It is a cross-sectional schematic diagram of an outer barrel cover structure of the present invention;

[0050] Fig.11 The present invention Fig.10 A schematic diagram of the enlarged structure at center A;

[0051] Fig.12 It is a schematic diagram of a structural explosion of an outer barrel cover structure of the present invention;

[0052] Fig.13 is a schematic diagram of a rotary spraying device of the present invention;

[0053] Fig.14 The present invention is a Fig.13 Schematic diagram from another angle;

[0054] Fig.15 It is a cross-sectional schematic diagram of a rotary spraying device of the present invention.

[0055] In the figure: 1. outer barrel cover; 11. opening; 12. water inlet pipe; 13. rotating shaft; 14. rotating shaft mounting seat; 15. water inlet pipe assembly seat; 2. inner cover; 21. upper inner cover; 211. guide groove; 212. protrusion; 2121. first protrusion; 2122. second protrusion; 22. lower inner cover; 221. concave cavity; 222. connecting hole; 3. rotary spray device; 31. spray head; 311. annular seat; 312. spray arm; 313. spray hole; 32. fixing seat; 321. annular mounting portion; 322. connecting hole; 33. connecting pipe; 331. adapter; 34. reversing joint; 35. limit plate; 36. connecting piece; 37. sealing ring; 4. outer barrel; 5. inner barrel.

[0056] 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

[0057] 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.

[0058] 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.

[0059] 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.

[0060] like Figures 1 to 5 As shown, the present invention also provides a control method for a washing machine, which is mainly used for a washing program of the washing machine. The washing program includes a water inlet process, a washing process, a rinsing process and a dehydration process. The washing machine includes two water inlets, a main water inlet and a rotary spray water inlet, into the washing tub.

[0061] The washing machine has a spray washing program, and the control method of the spray washing program of the washing machine includes:

[0062] Water starts to enter;

[0063] The main water inlet is connected to let the main water inlet amount of water flow into the washing tub. When the main water inlet amount is less than the preset water inlet amount, the main water inlet is closed to perform washing or rinsing. During the washing or rinsing process, the impeller and / or the inner tub is controlled to rotate, and the rotary spray water inlet is connected to let the rotary spray water flow into the washing tub for the preset time t1.

[0064] The control method of the present invention first controls a portion of the water volume of the main water inlet into the washing tub after water inlet starts for washing or rinsing, so as to wet the clothes and soak the clothes, facilitate subsequent washing or rinsing, increase the total water inlet speed, and reduce the water inlet washing or rinsing time. Then, during the washing or rinsing process, the rotary spray water inlet and the rotation of the impeller and / or the inner tub are controlled. The rotary spray area is larger and the spray effect is better, so the upper part of the clothes can be better cleaned. The rotary spray water inlet, the impeller and / or the inner tub are combined for washing or rinsing, so that the dirt in the clothes can be washed or the dirt and detergent in the clothes can be rinsed out, which can ensure the water-saving effect and improve the washing effect, avoid excessively long washing or rinsing time, and save energy.

[0065] The control method can be used in both the washing process and the rinsing process of the washing machine. The control method can be applied to a pulsator washing machine and a drum washing machine, preferably, to a pulsator washing machine.

[0066] The washing machine comprises a pan seat located above the washing tub, on which a water inlet valve is arranged for water inlet from an external waterway or a faucet.

[0067] One water outlet of the water inlet valve is connected to the top of the barrel opening of the washing tub through a pipe connection, serving as a main water inlet waterway for supplying water to the washing tub; a control valve is provided at the water outlet for controlling the opening and closing of the water inlet. Another water outlet of the water inlet valve is connected to the rotary spray device, serving as a rotary spray water inlet waterway for supplying water to the washing tub by rotary spraying; a control valve is also provided at the other water outlet.

[0068] The washing tub includes an outer tub for holding water, an inner tub rotatably disposed in the outer tub, or the washing tub includes only a rotatable single tub for holding water and washing. In the control method, water inlet is water inlet into the tub for holding water.

[0069] One implementation scheme is to close the main water inlet circuit and perform washing or rinsing. During the washing or rinsing process, first control the impeller and / or the inner barrel to rotate at a preset rotation-stop ratio a, and during the rotation process, connect the rotary spray water inlet circuit to rotate and spray water into the washing barrel until the preset spray water inlet time t1.

[0070] In this solution, after the main water inlet, the clothes are first loosened by slowly rotating the impeller and / or the inner barrel forward and reverse intermittently for a preset time, and then the water is rotated and sprayed to the preset time t1 to cooperate with the rotation of the impeller, so as to facilitate the washing or rinsing of the loosened clothes and improve the washing ratio or rinsing effect.

[0071] Another implementation scheme is to close the main water inlet waterway and perform washing or rinsing. During the washing or rinsing process, first control the connected rotary spray water inlet waterway to rotate and spray water into the washing tub, and then control the impeller to rotate at a preset rotation and stop ratio a during the spray water inlet process until the rotary spray water inlet time reaches the preset time t1.

[0072] In this solution, after the main water inlet, water is first introduced through rotary spraying to the preset time t1. After the rotary spraying water inlet starts, the impeller is controlled to rotate to wash or rinse the clothes. This can not only ensure the washing ratio or rinsing effect, but also reduce the washing or rinsing time and save electricity.

[0073] A preferred solution is that, during the washing or rinsing process, the connected rotary spray water inlet water path is first controlled to rotate the spray water inlet, and then during the rotary spray water inlet process, the impeller and / or the inner tub is controlled to rotate at a preset rotation-stop ratio a.

[0074] The preset time t1 is related to the dehumidification weight of the clothes. Before the washing process starts, the weight information of the clothes is obtained, and the preset time t1 in each washing or rinsing process that matches the weight of the clothes is obtained according to the weight of the clothes.

[0075] For example, the heavier the weight of the clothes, the longer the preset time t1 of the rotary spray, and the greater the total water intake corresponding to the actual amount. The lighter the weight of the clothes, the shorter the preset time t1 of the rotary spray, and the smaller the total water intake corresponding to the actual amount.

[0076] The preset time t1 can also be associated with the material or type information of the clothing. For example, when the material is different materials such as fabric, yarn, etc., the preset time t1 is different. For example, when the clothing is different types such as bed sheets, towels, T-shirts, etc., the preset time t1 is different.

[0077] The pulsator and / or the inner tub are controlled to rotate in the same direction or in the opposite direction at a preset rotation-stop ratio, and the rotation-stop ratios of the pulsator and the inner tub can be the same or different. The pulsator can be controlled to rotate alone, the inner tub can be controlled to rotate alone, or both the pulsator and the inner tub can be controlled to rotate.

[0078] Preferably, the impeller and the inner tub are controlled to rotate in opposite directions at a preset rotation-stop ratio. The inner tub rotates in the opposite direction to the impeller, forming a composite tumbling water flow from top to bottom and the direction of the water flow constantly changes, thereby increasing the intensity of the water flow. There are no dead corners for washing in the washing tub, which makes it easy for clothes to tumble continuously, reducing the entanglement of clothes and improving the cleaning ratio.

[0079] The speed of the pulsator is 90-120RPM, and the speed of the inner drum is 90-200RPM.

[0080] Furthermore, the washing machine also includes a main water inlet washing program, after the main water inlet, the pulsator and / or the inner tub are controlled to rotate at a preset rotation-stop ratio b to perform washing or rinsing. The main water inlet washing program is a common washing program, which only uses the main water inlet for washing or rinsing.

[0081] In the control method of the spray washing program of the present invention, during the washing or rinsing process, the impeller and / or the inner drum are controlled to rotate at a preset rotation-stop ratio a, and the preset rotation-stop ratio a of the impeller and / or the inner drum in the spray washing program is smaller than the preset rotation-stop ratio b of the impeller and / or the inner drum in the main water inlet washing program.

[0082] That is, the start-stop ratio a of the pulsator in the spray washing program is smaller than the preset start-stop ratio b of the pulsator in the main water inlet washing program, and the start-stop ratio a of the inner drum is smaller than the preset start-stop ratio b of the inner drum in the main water inlet washing program. The stop time of the pulsator or the inner drum is increased relative to the rotation time, reserving sufficient time for the downward spray impact washing or rinsing of clothes, thereby improving the washing or rinsing ability of the spray washing. In addition, the reduction of the start-stop ratio of the pulsator or the inner drum can also reduce the wear of clothes, thereby improving the user experience.

[0083] Preferably, the range of the start-stop ratio a is 0.7-0.9, and the range of the start-stop ratio b is 1.1-1.5.

[0084] The impeller and / or the inner drum rotate intermittently in the forward and reverse directions, that is, they rotate forward for n turns first, then stop rotating, and then rotate reversely for n turns. The above-mentioned cycle is repeated. The ratio of the time of unidirectional rotation and stop rotating is the rotation-stop ratio.

[0085] The main water inlet volume is n times the preset water inlet volume, where 1 / 5≤n≤1 / 2.

[0086] During the main water inlet, a small amount of water is firstly introduced to soak the clothes, and the water inlet amount is 1 / 5-1 / 2 of the total preset water inlet amount, and most of the water is reserved for the rotary spray water inlet. The preferred solution is that the main water inlet amount is 1 / 3-1 / 2 of the preset water inlet amount.

[0087] like Figure 3 As shown, a specific scheme is, during the rotary spray water inlet process, obtaining the rotary spray water inlet time t, judging whether the rotary spray water inlet time t is greater than or equal to the preset time t1, if so, that is, when the spray water inlet time t is greater than or equal to the preset time t1, closing the rotary spray water inlet waterway and stopping the impeller rotation, and then performing dehydration; if not, re-executing the acquisition of the rotary spray water inlet time t and making a judgment.

[0088] When the spraying water inlet ends, the present invention also controls the pulsator to stop rotating and perform dehydration, thereby avoiding increasing the washing or rinsing time and reducing the total washing time.

[0089] Specifically, during the rotary spray water inlet process, the impeller is controlled to rotate at a preset start-stop ratio a, and then the total water inlet volume is obtained to determine whether the total water inlet volume reaches the preset water inlet volume. If so, the rotary spray water inlet waterway is closed and the impeller rotation is stopped; if not, it is further determined whether the rotary spray water inlet time reaches the preset time t1. If so, the rotary spray water inlet waterway is closed; if not, the rotary spray water inlet waterway continues to be connected.

[0090] like Figure 4 As shown, another specific scheme is, during the rotary spray water inlet process, obtaining the spray water inlet time t, judging whether the rotary spray water inlet time t is greater than or equal to the preset time t1, if so, that is, when the spray water inlet time t is greater than or equal to the preset time t1, closing the rotary spray water inlet waterway, controlling the impeller to continue to rotate for the preset time t2, and then performing dehydration.

[0091] After the rotary spray water inlet is completed, the present invention controls the impeller to rotate for a preset time t2. When the spray water inlet time is too short (for example, the spray flow rate is large or the spray time is short due to less clothes), the impeller can be rotated to supplement the washing or rinsing, and then dehydration is performed, thereby further improving the washing effect or the rinsing effect.

[0092] Preferably, the preset time t2 is shorter than the preset time t1.

[0093] Specifically, during the rotary spray water inlet process, the impeller is controlled to rotate at a preset rotation-stop ratio a, and then the total water inlet volume is obtained to determine whether the total water inlet volume reaches the preset water inlet volume. In this case, even if the spray water inlet time does not reach the preset time t1, the rotary spray water inlet waterway is closed, and the impeller is controlled to continue rotating for the preset time t2 and then stop;

[0094] If not, further determine whether the rotary spray water inlet time reaches the preset time t1. If so, close the rotary spray water inlet waterway, control the impeller to continue rotating for the preset time t2 and then stop. If not, continue to connect the rotary spray water inlet waterway.

[0095] In such Figure 3 to Figure 4 In the control method shown, the preset time t1 can be set according to the desired effect and the rotary spray water inlet flow rate of the washing machine. Specifically, the preset time value t1 can be set through experiments.

[0096] Furthermore, the washing machine also includes a heating module for heating the water in the rotary spray water inlet waterway.

[0097] In the control method, during the washing or rinsing process, the pulsator is controlled to rotate, the heating module is controlled to work and the rotary spray water inlet is connected, and hot water is rotary sprayed into the washing tub for washing or rinsing, further improving the washing ratio or rinsing effect. In actual use of the heating module, the temperature can also be set below 85°C or above 85°C.

[0098] Preferably, steam washing or rinsing is performed, and the temperature of steam washing is usually set above 85°C.

[0099] That is, the spray washing program of the washing machine includes a normal temperature washing mode and a steam washing mode. The normal temperature washing mode is for spraying water with normal temperature water, and the steam washing mode is for the heating module to work and rotate and spray hot water to further improve the washing ratio or rinsing effect.

[0100] like Figure 5 As shown, the control method comprises the following steps:

[0101] S1, water intake starts

[0102] S2, connect the main water inlet waterway, add water to the washing tub to n times the preset water inlet volume, and add detergent, where 0<n<1;

[0103] S3, connecting the rotary spray water inlet water path, and rotating the spray water into the washing tub for a preset time t1 and then shutting down, and during the rotary spray water inlet process, controlling the impeller to rotate at a preset start-stop ratio a1;

[0104] S4, control the dehydration.

[0105] Before step S1, the method further includes the following steps:

[0106] S0. Obtain the weight of the clothes, and obtain the corresponding preset water intake volume, the preset time t1 during the washing and rinsing process, the impeller rotation and stop ratio a1, a2, and other related parameters (such as the preset time t2) according to the weight of the clothes.

[0107] In step S2, detergent is added after the main water inflow is completed. The user can also be reminded to manually add detergent. Alternatively, the washing machine is provided with an automatic adding device, which directly sucks the detergent into the washing tub after the water inflow is completed.

[0108] Alternatively, in step S2, detergent is added during the main water inlet process. The washing machine is provided with a detergent box assembly, which is arranged on the main water inlet waterway, and detergent is added through the detergent box assembly during the main water inlet process.

[0109] In step S3, the pulsator rotation process and the rotary spray water inlet process overlap in time, and the pulsator may rotate first, or the spray water inlet may be first. During the washing process, the inner tub may also be controlled to rotate at a preset rotation-stop ratio.

[0110] After step S4, the method further includes the following steps:

[0111] S5, connecting the main water inlet waterway, and then closing the main water inlet to n times of the preset water inlet volume in the washing tub, where 0<n<1;

[0112] S6, connecting the rotary spray water inlet water path, rotating the spray water into the washing tub for a preset time t1 and then shutting down, during the rotary spray water inlet process, controlling the impeller to rotate at a preset rotation-stop ratio a2 for rinsing, a2<a1;

[0113] S7, control the dehydration and detect whether the separated rinsing liquid meets the rinsing standard. If so, end; if not, execute step S5.

[0114] In S6 of the present invention, by controlling the rotation-stop ratio a2 of the pulsator during the rinsing process to be smaller than the rotation-stop ratio a1 of the pulsator during the washing process, the rotation speed of the pulsator during the washing process is faster, which can better drive the clothes and water flow to wash the clothes. During the rinsing process, the inner drum can also be controlled to rotate at a preset rotation-stop ratio.

[0115] In step S7, the dehydration is controlled to detect whether the rinsing liquid reaches the rinsing standard. If not, it is detected whether the number of rinsing and dehydration times is greater than or equal to the preset number. If so, it ends; if not, step S5 is executed.

[0116] The preset number of times is 3-5 times.

[0117] In such Figures 3 to 5 In the control method shown, the above only takes the rotation of the pulsator as an example, and the rotation of the inner drum of a pulsator washing machine or the inner drum of a drum washing machine can also be controlled.

[0118] like Figures 6 to 15 As shown, the present invention provides a washing machine, which adopts any of the control methods described above. Preferably, the washing machine is a pulsator washing machine.

[0119] like Figure 6 to Figure 7 As shown, the pulsator washing machine includes an outer barrel 4 and an outer barrel cover structure that closes the barrel opening of the outer barrel 4 to prevent water in the outer barrel 4 from splashing to the outside during the operation of the washing machine. The barrel opening of the outer barrel 4 is arranged upward, and an openable and closable inner cover 2 is provided on the outer barrel cover structure, and a rotating spray device 3 is provided on the inner side of the inner cover 2.

[0120] The outer barrel cover structure comprises an outer barrel cover 1 , an inner cover 2 and a rotary spraying device 3 .

[0121] The outer barrel cover 1 is provided with an opening 11, and the inner cover 2 is rotatably disposed on the outer barrel cover 1 to close or open the opening 11. The inner cover 2 can be rotated toward the outside of the outer barrel cover 1 to open the opening 11. The rotary spraying device 3 includes a spray head 31, and the spray head 31 is rotatably disposed on the inner side wall of the inner cover 2.

[0122] Preferably, the pulsator washing machine further comprises an outer tub 4 and an inner tub 5 rotatably disposed in the outer tub 4. The outer tub cover 1 is disposed at the tub opening of the outer tub 4, and the inner cover 2 is disposed opposite to the tub opening of the inner tub 5.

[0123] The present invention provides a rotatable inner cover 2 on the outer barrel cover 1, and a rotary spray device 3 is provided on the inner side of the inner cover 2. By rotating the spray water inlet, the clothes in the outer barrel 4 can be sprayed for washing or rinsing, thereby increasing the spray range of the clothes, thereby improving the spray rinsing efficiency of the clothes, washing the clothes in all directions, improving the washing effect of the clothes, saving water and energy, and having a simple structure and occupying a small space.

[0124] The pulsator washing machine also includes a box body, and the outer tub 4 is suspended in the box body.

[0125] The box body includes a tray seat, which is located above the outer barrel 4. A water inlet valve is arranged on the tray seat, one water outlet of the water inlet valve is connected to the rotary spray device 3 through a hose, and is used for spray water supply; the other water outlet directly flows into the outer barrel 4 through a hose, and is used for main water supply.

[0126] The pulsator washing machine further comprises a heating module, which is arranged in a hose between a water outlet of the water inlet valve and the rotary spray device 3 and is used for heating the inlet water to supply hot water to the rotary spray device 3 .

[0127] In the above structure, if the outer drum cover structure is installed on the outer drum 4 of the washing machine, the nozzle 31 on the inner wall of the inner cover 2 extends downward too low, which is easy to scratch or entangle with the clothes in the outer drum 4 when the clothes are spun or washed, affecting the normal operation of the washing machine.

[0128] In view of this, if Figure 8 As shown, in the present invention, a concave cavity 221 is provided on the inner side of the inner cover 2 , and the nozzle 31 is disposed in the concave cavity 221 .

[0129] By setting the nozzle 31 inside the concave cavity 221 of the inner cover 2, it can avoid being entangled with clothes when the washing machine is running after being installed on the outer barrel 4 of the washing machine. The nozzle 31 can be rotatably set inside the concave cavity 221, and the structure volume is small, and does not occupy the space under the outer barrel cover structure.

[0130] Preferably, the opening 11 is disposed in the middle of the outer barrel cover 1, and the concave cavity 221 is disposed in the middle of the inner cover 2. The transverse cross-section of the concave cavity 221 is circular.

[0131] In the above structure, a water inlet pipeline needs to be set up to supply water to the rotary spray device 3. If the water inlet pipeline is directly set on the inner wall or outer wall of the outer barrel cover structure, the water inlet pipeline will easily rub against other objects and the appearance will be unsightly, affecting the user experience.

[0132] like Figures 9 to 12 As shown, the rotary spraying device 3 further includes a connecting pipe 33 and a fixing seat 32 .

[0133] The liquid inlet end of the connecting tube 33 is arranged outside the inner cover 2 , and the liquid outlet end of the connecting tube 33 extends to the inside of the inner cover 2 , so as to allow liquid to flow from the outside to the inside of the inner cover 2 .

[0134] The fixing seat 32 has a water inlet channel inside. One end of the fixing seat 32 is arranged inside the inner cover 2, and is connected to the liquid outlet end of the connecting pipe 33, so that the incoming liquid is introduced into the water inlet channel of the fixing seat 32. The other end of the fixing seat 32 is passed through the concave cavity 221 outside the inner cover 2, and is connected to the spray head 31, so that the incoming liquid is guided to the spray head 31 to spray the clothes in the outer barrel 4.

[0135] The present invention sets a fixing seat 32 penetrating the interior of the inner cover 2, and a connecting pipe 33 is set from the outside to the interior of the inner cover 2, so as to guide the incoming liquid to one end of the fixing seat 32 in the inner cover 2, and supply liquid to the nozzle 31 through the other end of the fixing seat 32 set in the concave cavity 221, so as to realize liquid inlet to the nozzle 31. The present invention extends the connecting pipe 33 in the inner cover 2, and the fixing seat 32 does not protrude outward from the concave cavity 221. The liquid inlet pipeline is cleverly designed to make full use of the space inside the inner cover 2 and the concave cavity 221. There is no need to set the liquid inlet pipeline on the side wall or outside the side wall of the inner cover 2. The connection structure is simple, does not occupy additional external space, has a small size, and has a beautiful appearance.

[0136] Preferably, the fixing seat 32 is extended along the axial direction of the inner cover 2 , and the water inlet channel is extended inside the fixing seat 32 along the extension direction of the fixing seat 32 .

[0137] The spray head 31 is rotatably mounted on the peripheral wall of the other end of the fixed seat 32, and is connected to the peripheral wall of the fixed seat 32, so as to guide the liquid from the fixed seat 32 into the spray head 31. The bottom wall of the spray head 31 is provided with an inclined liquid outlet hole for spraying water to drive the spray head 31 to rotate.

[0138] When the spray head 31 is filled with liquid, the liquid inlet hole sprays the liquid downward at an angle, and under the action of the circumferential reaction force, the spray head 31 is driven to rotate, so that the spraying range is wider, and there is no need to set a drive rotation.

[0139] The inner diameter of the liquid inlet hole gradually decreases as it extends from the inside of the nozzle 31 to the outside.

[0140] like Figures 11 to 15 As shown, a protruding annular mounting portion 321 is provided on the peripheral wall of the fixing seat 32 , which is located in the concave cavity 221 and connected to the outer periphery of the connecting hole 222 on the cavity bottom of the concave cavity 221 .

[0141] The rotary spraying device 3 further includes a limit plate 35 and a connecting member 36. The limit plate 35 is connected to the other end of the fixing seat 32 via the connecting member 36, and the spray head 31 is limited between the limit plate 35 and the annular mounting portion 321.

[0142] Preferably, the limiting plate 35 is circular. The fixing seat 32 is cylindrical with an annular mounting portion 321 on the outer peripheral wall. The other end of the fixing seat 32 has a screw hole, and the connecting member 36 is a screw that passes through the limiting plate 35 and is connected to the screw hole.

[0143] The annular mounting portion 321 is provided with an assembly hole, which is connected to the upper inner cover 21 at the outer periphery of the connection hole 222 by screws. The outer diameter of the limiting plate 35 is greater than the outer diameter of one end of the fixing seat 32.

[0144] A communication hole 322 is formed on the outer peripheral wall of the other end of the fixing seat 32 and is communicated with the nozzle 31 .

[0145] Furthermore, the spray head 31 includes a connected annular seat 311 and a plurality of spray arms 312. The annular seat 311 is sleeved on the outer periphery of the other end of the fixed seat 32 and is connected to the connecting hole 322 of the fixed seat 32. The spray arms 312 are arranged at intervals on the outer peripheral wall of the annular seat 311 and extend from the peripheral wall of the annular seat 311 to the outer periphery.

[0146] The liquid outlet is arranged obliquely downward toward the center direction of the outer barrel cover 1 , and the liquid outlet direction deviates from the radial line of the outer barrel cover 1 in the circumferential direction.

[0147] The annular seat 311 is sealed and installed with the outer peripheral walls of the upper and lower sides of the connecting hole 322 of the fixed seat 32 through the sealing ring 37 to prevent water leakage at the connection between the fixed seat 32 and the spray head 31 during the operation of the rotary spray device 3.

[0148] In the present invention, the liquid outlet is inclined toward the center direction of the outer barrel cover 1, and multiple spray arms 312 spray inward, gradually tilting to spray to the inner edge of the outer barrel 4, which can increase the spray range. Secondly, the liquid outlet direction of the spray head 31 deviates from the radial line of the outer barrel cover 1 in the circumferential direction, and a reaction force can be formed in the circumferential direction during spraying to push the spray head 31 to rotate.

[0149] The liquid outlet hole on each spray arm 312 can be a spray hole 313, which is inclined downward toward the middle of the inner cover 2 and circumferentially deviated from the radial arrangement of the spray head 31, thereby driving the spray head 31 to rotate.

[0150] Alternatively, the liquid outlet on each spray arm 312 includes a plurality of spray holes 313 , which are arranged at intervals along the length extension direction of the spray arm 312 at the bottom of the spray arm 312 and inclined downward toward the inner circumference, and the arrangement extension direction of the plurality of spray holes 313 deviates from the radial direction of the nozzle 31 .

[0151] Each spray arm 312 has a chamber, which is respectively communicated with the annular seat 311. The multiple spray holes 313 on each spray arm 312 are arranged and extend in the same direction.

[0152] The spray arms 312 are rotating blades, and the number of the rotating blades is 2 to 5, preferably 3, and they are evenly spaced along the circumference of the annular seat 311 .

[0153] like Figures 9 to 12 As shown, the inner cover 2 comprises an upper inner cover 21 and a lower inner cover 22 which are buckled together to form a receiving space. An extending guide groove 211 is provided on the inner side wall of the upper inner cover 21, and the connecting pipe 33 is extended and arranged in the guide groove 211.

[0154] The liquid inlet end of the connecting pipe 33 extends through the outer periphery of the inner cover 2 , and one end of the fixing seat 32 extends into the guiding groove 211 and communicates with the liquid outlet end of the connecting pipe 33 .

[0155] The outer side (or upper side wall) of the upper inner cover 21 is partially protruded outward to form a protruding portion 212 , and the guide groove 211 is provided in a receiving cavity formed by the protruding portion 212 on the inner side of the upper inner cover 21 .

[0156] The protrusion 212 includes a first protrusion 2121 and a second protrusion 2122 . The first protrusion 2121 is disposed in the middle of the upper inner cover 21 , and the second protrusion 2122 extends from the first protrusion 2121 to the outer peripheral edge of the upper inner cover 21 .

[0157] The first protrusion 2121 is provided with an annular rib on the inner side, and the inner circumference of the annular rib forms a first accommodation cavity. The second accommodation cavity formed by the second protrusion 2122 on the inner side of the upper inner cover 21 forms a part of the guide groove 211 for installing the connecting pipe 33. The second accommodation cavity is connected with the first accommodation cavity to form the guide groove 211.

[0158] The protruding height of the first protruding portion 2121 is greater than that of the second protruding portion 2122, so that the first accommodation cavity formed by the annular convex rib inside the first protruding portion 2121 has a deeper depth. The liquid outlet end of the connecting pipe 33 has a conversion joint 331, which is installed in the first accommodation cavity formed in the annular convex rib. One end of the fixing seat 32 extends into the first accommodation cavity and is sealed and connected to the conversion joint 331.

[0159] The first protrusion 2121 is a circular boss, and the second protrusion 2122 is a strip-shaped protrusion.

[0160] The concave cavity 221 is formed by the upward protrusion of part of the side wall of the lower inner cover 22, and the protruding part abuts against the annular convex rib. The annular convex rib and the lower inner cover 22 are respectively provided with mounting holes, which match the assembly holes of the annular mounting portion 321, and the three are connected together by screws.

[0161] Furthermore, the outer barrel cover structure also includes a water inlet pipe 12 .

[0162] The water inlet pipe 12 is fixed on the outer barrel cover 1, and a rotatable reversing joint 34 is provided at the liquid inlet end of the connecting pipe 33, which rotates with the inner cover 2 so that the rotating inner cover 2 can be connected to the fixed water inlet pipe 12. The reversing joint 34 is detachably connected to the water inlet pipe 12.

[0163] The water inlet pipe 12 is fixed on the outer barrel cover 1 through a water inlet pipe assembly seat 15, is non-rotatable, and is connected to the water inlet valve.

[0164] Preferably, the outer barrel cover structure also includes a rotating shaft 13.

[0165] The rotating shaft 13 is rotatably arranged on the outer barrel cover 1, and is coaxially spaced with the water inlet pipe 12. The inner cover 2 is provided with a first hinge and a second hinge (not shown in the figure). The first hinge is rotatably arranged on the water inlet pipe 12, and the second hinge is rotatable on the outer barrel cover 1 along with the rotating shaft 13, so that the inner cover 2 is rotatably arranged on the outer barrel cover 1.

[0166] The water inlet pipe 12 of the present invention can be used to connect the connecting pipe 33 to supply water to the nozzle 31, and can also be used as a rotating shaft 13 to rotate the inner cover 2, thereby achieving multiple uses, a simple structure, a small occupied volume, and a beautiful upper surface of the outer barrel cover 1.

[0167] The outer barrel cover 1 is provided with a shaft mounting seat 14 , and the shaft 13 is rotatably mounted on the shaft mounting seat 14 .

[0168] The liquid inlet end of the connecting pipe 33 extends to between the adjacent ends of the water inlet pipe 12 and the rotating shaft 13. The end of the water inlet pipe 12 adjacent to the rotating shaft 13 is connected to the reversing joint 34, and the other end of the water inlet pipe 12 extends to the outside of the outer periphery of the outer barrel cover 1 for water inlet to the external pipe. With this design, only a small part of the liquid inlet end of the connecting pipe 33 extends outward to the outer periphery of the inner cover 2 and is connected to the water inlet pipe 12 used as the rotating shaft 13, which is not easy to be observed, and the outer structure of the outer barrel cover structure is simple, beautiful and generous.

[0169] The extension length of the rotating shaft 13 is smaller than the extension length of the water inlet pipe 12 .

[0170] The above description 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 a preferred embodiment as above, 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, characterized in that: The washing machine includes two water inlets: a main water inlet and a rotary spray water inlet. The control method includes Water starts to enter; The main water inlet waterway is connected to supply water of the main water inlet amount into the washing tub, and the main water inlet amount is less than the preset water inlet amount; Close the main water inlet and perform washing or rinsing. During the washing or rinsing process, control the impeller and / or the inner tub to rotate, connect the rotary spray water inlet, and rotate and spray water into the washing tub for a preset time t1.

2. A method for controlling a washing machine according to claim 1, characterized in that: The main water inlet volume is n times the preset water inlet volume, where 1 / 5≤n≤1 / 2.

3. A method for controlling a washing machine according to claim 1, characterized in that: The washing machine also includes a main water inlet washing program, and after the main water inlet, the pulsator and / or the inner tub are controlled to rotate at a preset rotation-stop ratio b to perform washing or rinsing; In the control method, during the washing or rinsing process, the pulsator and / or the inner tub are controlled to rotate at a preset rotation-stop ratio a, which is smaller than the preset rotation-stop ratio b of the pulsator and / or the inner tub in the main water inlet washing program.

4. A method for controlling a washing machine according to any one of claims 1 to 3, characterized in that: During the washing or rinsing process, the rotary spray water inlet water path is first controlled to rotate and spray water, and then the impeller and / or the inner tub are controlled to rotate at a preset rotation-stop ratio a during the rotary spray water inlet process; Preferably, the impeller is controlled to rotate at a preset rotation-stop ratio a.

5. A method for controlling a washing machine according to claim 5, characterized in that: During the rotary spray water inlet process, the impeller is controlled to rotate at a preset rotation-stop ratio a, and then the total water inlet volume is obtained to determine whether the total water inlet volume reaches the preset water inlet volume. If so, the rotary spray water inlet waterway is closed; If not, it is further determined whether the rotary spray water inlet time reaches the preset time t1. If so, the rotary spray water inlet waterway is closed; if not, the rotary spray water inlet waterway continues to be connected. Preferably, to determine whether the total water inflow has reached a preset water inflow, the rotary spray water inlet waterway is closed, and the impeller is controlled to continue rotating for a preset time t2, and the preset time t1 is greater than the preset time t2.

6. A method for controlling a washing machine according to any one of claims 1 to 5, characterized in that: The washing machine also includes a heating module for heating water in the rotary spray water inlet waterway; During the washing or rinsing process, the impeller is controlled to rotate, the heating module is controlled to work and the rotary spray water inlet water path is connected, and hot water is rotary sprayed into the washing tub for steam washing or rinsing.

7. A method for controlling a washing machine according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, water intake begins; S2, connect the main water inlet waterway, add water to the washing tub to n times the preset water inlet volume, and add detergent, where 0<n<1; S3, connecting the rotary spray water inlet water path, and rotating the spray water into the washing tub for a preset time t1 and then shutting down, and during the rotary spray water inlet process, controlling the impeller to rotate at a preset start-stop ratio a1; S4, control the dehydration.

8. A method for controlling a washing machine according to claim 7, characterized in that: Before step S1, the method further includes the following steps: S0. Obtain the weight of the clothes, and obtain the corresponding preset water intake according to the weight of the clothes.

9. A method for controlling a washing machine according to any one of claims 7-8, characterized in that: After step S4, the method further includes the following steps: S5, connecting the main water inlet waterway, and then closing the main water inlet to n times of the preset water inlet volume in the washing tub; S6, connecting the rotary spray water inlet water path, rotating the spray water into the washing tub for a preset time t1 and then shutting down, during the rotary spray water inlet process, controlling the impeller to rotate at a preset rotation-stop ratio a2 for rinsing, a2<a1; S7, control the dehydration, detect whether the separated rinsing liquid meets the rinsing standard, if yes, then end; if not, execute step S5; Preferably, in step S7, it is detected whether the rinsing liquid reaches the rinsing standard. If not, it is detected whether the number of rinsing and dehydration times is greater than or equal to a preset number. If so, it ends; if not, step S5 is executed.

10. A washing machine, characterized in that: A control method according to any one of claims 1 to 9; Preferably, it also includes an outer barrel, with the barrel opening facing upward; The outer barrel cover structure is used to close the barrel mouth of the outer barrel. The outer barrel cover structure is provided with an openable and closable inner cover, and the inner side of the inner cover is provided with a rotating spray device.

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