Washing machine control method and roller washing machine

Abstract

The invention provides a washing machine control method. An air blowing unit facing an inner barrel is arranged on the upper half portion of an outer barrel of a washing machine. When the dewatering stage is finished, the washing machine judges whether the clothes adheres to the wall or not, and if yes, an air blowing unit works; if not, ending the washing process. Whether the clothes are attached to the wall or not is judged at the end of the dewatering stage, and if yes, the clothes are blown off through the air blowing unit, so that a user can easily pick up the clothes, the use experience of the user is guaranteed, and the clothes can be prevented from being left in the inner barrel. The invention further provides the roller washing machine adopting the washing machine control method.

Description

Technical Field

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

[0002] The radius of the existing drum washing machine is increased. During the dehydration process, the centrifugal force generated by the high-speed rotation of the inner drum is relatively large. The force between the load and the inner wall of the inner drum during the dehydration process is correspondingly large, and it is easy to stick to the inner wall of the inner drum and cannot be peeled off from the inner wall by itself after the dehydration is completed.

[0003] After washing, the user needs to collect the dehydrated clothes in the inner drum in all directions. When some clothes are just on the inner wall of the upper half of the inner drum, the user may fail to find the clothes and leave them in the inner drum.

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

[0005] An object of the present invention is to overcome the shortcomings of the prior art and provide a washing machine control method, which determines whether there is clothing adhering to the wall at the end of the dehydration stage, and blows off the clothing adhering to the wall through a blowing unit, so that users can pick up clothing more easily and avoid missing clothing.

[0006] Another object of the present invention is to provide a drum washing machine using the above-mentioned washing machine control method.

[0007] In order to achieve the first invention objective, the present invention adopts the following technical solution:

[0008] A method for controlling a washing machine, wherein the upper part of the outer drum of the washing machine is provided with a blowing unit facing the inner drum;

[0009] At the end of the dehydration stage, the washing machine determines whether there is a phenomenon of clothes sticking to the wall. If so, the blowing unit works; if not, the washing process ends.

[0010] Furthermore, when the washing machine determines that the clothes are attached to the wall, the part attached to the wall rotates to the blowing unit and the blowing unit starts to work;

[0011] When the washing machine determines that there are multiple places where the wall is attached, the inner drum rotates clockwise and counterclockwise alternately to rotate each place where the wall is attached to the blowing unit.

[0012] Furthermore, the washing machine is provided with a lighting unit and a photosensor, and the photosensor can at least receive light feedback from the upper half of the inner drum;

[0013] The washing machine determines whether there is a phenomenon of clothes sticking to the wall, comprising the following steps:

[0014] The lighting unit is turned on, and the photosensor determines whether the current light feedback is within a set range. If so, it is determined that the clothing does not stick to the wall; if not, it is determined that the clothing sticks to the wall.

[0015] Furthermore, during the dehydration stage, the drum stops rotating every first set time, and the washing machine determines whether there is a phenomenon of clothes sticking to the wall. If so, the blowing unit works; if not, a preset program is executed.

[0016] Furthermore, when the blowing unit works at least once in the dehydration stage, within a second set time before the end of the dehydration stage, the washing machine asks the user whether to add dehydration time. If so, add dehydration time equal to the blowing time. If not, execute the preset program.

[0017] Furthermore, when the washing machine inquires the user, it determines whether the ratio of the current laundry weight to the initial laundry weight is greater than a first set value. If so, it recommends additional dehydration time; if not, it recommends executing a preset program.

[0018] Further, when the washing machine does not receive user feedback at the end of the dehydration stage, the washing machine determines whether to add dehydration time according to the ratio of the current laundry weight to the initial laundry weight;

[0019] If the ratio is greater than the first set value, the dehydration time is supplemented; if the ratio is less than or equal to the first set value, the preset program is executed.

[0020] Furthermore, when the washing machine detects that the door is open but determines that clothes are sticking to the wall at the end of the dehydration stage, the washing machine reminds the user.

[0021] Furthermore, when and only when the washing machine determines that there is no phenomenon of clothes sticking to the wall and there is no need to execute the next process, the washing machine reminds the user to pick up the clothes.

[0022] In order to achieve the second invention objective, the present invention adopts the following technical solution:

[0023] A drum washing machine adopts the above-mentioned washing machine control method.

[0024] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0025] 1. The present invention determines whether there is a phenomenon of clothes sticking to the wall at the end of the dehydration stage. If so, the clothes are blown off by the blowing unit, so that the user can pick up the clothes more easily, ensuring the user's usage experience and preventing the clothes from being left in the inner drum.

[0026] 2. In the present invention, the washing machine will ask the user whether to add dehydration time and perform subsequent operations according to the user's choice. When the user chooses to add dehydration time, the present invention can ensure the dehydration effect of the clothes. When the user chooses not to add, the present invention can complete the washing within the preset time to avoid affecting the user's subsequent arrangements.

[0027] 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

[0028] 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 drawings:

[0029] Figure 1 It is a flow chart of the washing machine control method of the present invention.

[0030] Figure 2 It is a schematic diagram of the position of the blowing unit of the present invention.

[0031] Figure 3 It is a schematic diagram of the position of the photosensitive sensor of the present invention.

[0032] Description of the main components in the figure: 1. Outer cylinder; 2. Inner cylinder; 3. Blowing unit; 4. Clothes; 5. Photosensor; 6. Window pad.

[0033] 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

[0034] 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.

[0035] 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.

[0036] 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.

[0037] As the radius of the drum washing machine increases, the centrifugal force generated by the high-speed rotation of the inner drum during the dehydration process is relatively large. The clothes in the drum will stick to the inner wall of the inner drum due to the centrifugal force, and even at the end of the dehydration stage, they will not be able to peel off from the inner wall by themselves. Therefore, when users pick up clothes, they are likely to miss the clothes stuck to the upper half of the inner drum.

[0038] In view of this, if Figure 1 As shown, the present invention provides a washing machine control method, wherein the upper half of the outer drum of the washing machine is provided with a blowing unit facing the inner drum. At the end of the dehydration stage, the washing machine determines whether there is a phenomenon of clothes sticking to the wall. If so, the blowing unit works to blow the clothes off the inner wall of the inner drum; if not, the washing process ends.

[0039] If the drying process is performed directly after the dehydration stage, the drying air entering the inner drum cannot penetrate the clothes sticking to the wall to reach the outermost layer of clothes due to the phenomenon of clothes sticking to the wall, and the drying effect on the outer layer of clothes is poor. In addition, the clothes sticking to the wall will also block the dehydration holes on the side wall of the inner drum. The drying air between the inner and outer drums directly enters the next cycle from the bottom of the outer drum, instead of entering the inner drum again from the dehydration holes to dry the clothes, which reduces the drying efficiency. The present invention uses the blowing unit to blow off the clothes sticking to the inner wall of the inner drum at the end of the dehydration stage, which can ensure that users can pick up clothes more easily, and can also ensure the drying efficiency when entering the drying stage after the dehydration stage.

[0040] There is a situation that when the dehydration stage ends and the user has not chosen to execute the drying program, the user opens the door of the washing machine to pick up the clothes at the end of the dehydration stage. At this time, the blowing unit has not blown off the clothes attached to the upper half of the inner drum. The user leaves directly after picking up the clothes. Even if the blowing unit blows off the clothes, the clothes are left in the inner drum.

[0041] To avoid the above situation, in one embodiment of the present invention, when the washing machine detects that the door is open at the end of the dehydration stage but determines that there is a phenomenon of clothes sticking to the wall, the washing machine reminds the user, and the reminder method can be a buzzer alarm.

[0042] Alternatively, in another embodiment of the present invention, in order to prevent the user from picking up clothes when the clothes are stuck to the wall, in this embodiment, the washing machine reminds the user to pick up clothes when and only when the washing machine determines that there is no clothing sticking to the wall and there is no need to execute the next process, for example, there is no need to execute the drying program after the dehydration stage.

[0043] In one embodiment of the present invention, the washing machine is provided with a lighting unit and a photosensitive sensor. When the lighting unit is turned on, the photosensitive sensor receives light feedback from the inner drum and determines whether the current light feedback is within a set range. If so, the reflections at various locations in the inner drum are normal, and it is determined that the clothes are not sticking to the wall; if not, it is determined that the clothes are sticking to the wall.

[0044] The upper part of the inner drum does not have clothes sticking to the wall, so the user can pick up clothes more easily and will not miss clothes sticking to the upper part of the inner drum. Therefore, the light sensor of the present invention can at least receive light feedback from the upper part of the inner drum.

[0045] Specifically, the lighting unit and the photosensor may be arranged on a window pad of the observation window of the washing machine.

[0046] In one embodiment of the present invention, when only one blowing unit is provided, the blowing unit is preferably provided at the top of the outer drum and facing the inner drum. When the washing machine determines that there is a phenomenon of clothes sticking to the wall, it controls the part sticking to the wall to rotate to the blowing unit. After the part sticking to the wall rotates into place, the blowing unit works. At this time, the clothes sticking to the wall can be easily peeled off from the inner wall of the inner drum under the action of the blowing unit.

[0047] When the washing machine determines that there are multiple places where the clothes are attached to the wall, in order to further ensure that the clothes are peeled off from the inner wall of the inner drum, the inner drum rotates clockwise and counterclockwise alternately to rotate each place where the clothes are attached to the wall to the blowing unit. During the rotation process, a similar shaking effect can be achieved, so that the clothes are loosened from the inner wall of the inner drum, and the blowing unit can blow the clothes off more easily when working, thereby ensuring the user experience.

[0048] In another embodiment of the present invention, a plurality of blowing units are arranged along the circumference of the outer drum. When the washing machine determines that clothes are sticking to the wall, it can determine the position where the clothes are sticking to the wall based on the feedback of the photosensitive sensor, and then control the blowing units at the corresponding positions to work and blow the clothes off.

[0049] In the prior art, the dehydration stage of the washing machine is to maintain the set speed for the theoretical time, but the weight of the clothes at the end of the dehydration stage is relatively small, and the clothes are closely attached to the inner wall of the inner drum. It is difficult to blow the clothes off through the blowing unit only when the dehydration stage is finished, and the user experience cannot be guaranteed. On the other hand, at this time, the moisture contained in the inner clothes needs to pass through the outer clothes before it can be thrown out from the dehydration holes provided on the inner drum. The dehydration program that maintains the set speed for the theoretical time has the phenomenon of uneven dehydration of the inner and outer clothes.

[0050] Therefore, in the present invention, during the dehydration stage, the drum stops rotating every first set time, and the washing machine determines whether there is a phenomenon of clothes sticking to the wall. If so, the blowing unit works; if not, the preset program is executed.

[0051] During the dehydration process, dehydration is paused and it is determined whether there is a phenomenon of clothes sticking to the wall. At this time, the clothes have a large water content and a large weight, and the wall sticking phenomenon is relatively not serious. The blowing unit can easily peel the clothes off the inner wall of the inner drum, thereby reducing the wall sticking phenomenon of the clothes at the end of the dehydration stage, ensuring that the blowing unit can blow off the clothes that stick to the inner wall of the inner drum at the end of the dehydration stage. Since the inner drum stops rotating during the dehydration process, the inner layer of clothes and the outer layer of clothes may exchange positions when the inner drum rotates again, so that the clothes in the drum are evenly dehydrated, ensuring the dehydration effect.

[0052] Furthermore, when the washing machine detects that the blowing unit has worked at least once during the dehydration stage, in order to ensure the dehydration effect of the clothes, the washing machine asks the user whether to add dehydration time within the second set time before the end of the dehydration stage. If so, the washing machine continues to dehydrate the clothes after the dehydration stage and adds the same dehydration time as the blowing time; if not, execute the preset program.

[0053] In the present invention, by asking the user to determine whether to add dehydration time, the dehydration effect of the clothes can be guaranteed. When the user's schedule is relatively tight, the dehydration time can be not added to ensure that the washing is completed within the preset time, thereby avoiding affecting the user's subsequent schedule.

[0054] The washing machine can ask the user by pushing information to the APP associated with the washing machine on the user's mobile phone, and the user can also choose whether to add dehydration time on the relevant APP interface.

[0055] Preferably, the washing machine of the present invention will also provide relevant suggestions to the user when asking the user.

[0056] In one embodiment of the present invention, when asking the user, the washing machine determines whether the ratio of the current dehydration time to the theoretical dehydration time is greater than a second set value. If so, it is determined that the current dehydration time can dehydrate the clothes more fully. In order to ensure that the washing is completed within the preset time and avoid affecting the user's subsequent arrangements, the washing machine recommends directly executing the preset program without adding dehydration time; if not, it is determined that the current dehydration time cannot guarantee the dehydration effect of the clothes, and the washing machine recommends that the user add dehydration time.

[0057] If the washing machine does not receive user feedback at the end of the dehydration stage, the washing machine determines whether to add dehydration time based on the ratio of the current dehydration time to the theoretical dehydration time. At this time, the current dehydration time is the dehydration time at the end of the dehydration stage. When the ratio of the current dehydration time to the theoretical dehydration time is greater than the second set value, the washing machine executes a preset program after the dehydration stage ends, that is, to determine whether there is a phenomenon of clothes sticking to the wall; when the ratio of the current dehydration time to the theoretical dehydration time is less than or equal to the second set value, in order to ensure the dehydration effect of the clothes, the washing machine directly adds a dehydration time equal to the blowing time after the dehydration stage ends.

[0058] In another embodiment of the present invention, considering that the dehydration effect of the clothes is judged by the moisture content of the clothes during the dehydration stage, there may be a misjudgment in judging whether to recommend additional dehydration time by the ratio of the current dehydration time to the theoretical dehydration time. In this embodiment, when asking the user, the washing machine judges whether the ratio of the current clothes weight to the initial clothes weight is greater than the first set value. If so, the current clothes weight is still large and the clothes still contain a lot of water. The washing machine recommends the user to add dehydration time; if not, the current clothes weight is small, indicating that the water contained in the clothes has been fully thrown out, and the dehydration effect of the clothes can be guaranteed. The washing machine recommends executing the preset program without adding dehydration time. The initial clothes weight is the weight of the clothes just put into the inner drum, that is, the weight of dry clothes.

[0059] When the washing machine does not receive user feedback at the end of the dehydration stage, the washing machine determines whether to add dehydration time based on the ratio of the current laundry weight to the initial laundry weight. At this time, the current laundry weight is the laundry weight at the end of the dehydration stage.

[0060] When the ratio of the current laundry weight to the initial laundry weight is greater than the first set value, the washing machine determines that the moisture content of the current laundry in the drum is still relatively high, and in order to ensure the dehydration effect of the laundry, a dehydration time equal to the blowing time is added before executing the preset program;

[0061] When the ratio of the current laundry weight to the initial laundry weight is less than or equal to the first set value, the washing machine determines that the moisture in the current laundry has been fully spun out, and in order to complete the washing within the preset time, the preset program is directly executed after the dehydration stage.

[0062] like Figure 2-3 As shown, the present invention also provides a drum washing machine using the above-mentioned washing machine control method, comprising an outer drum 1 and an inner drum 2 arranged inside the outer drum 1, Figure 2 Schematic diagram of the position of the blowing unit 3 from the main viewing angle. In the present invention, the blowing unit 3 is arranged at the upper half of the outer drum 1 and blows air toward the inner drum 2 to blow off the clothes 4 attached to the inner wall of the inner drum 2. Preferably, the blowing unit 3 is arranged at the top of the outer drum 1.

[0063] In order to detect whether the clothes 4 are attached to the wall, the present invention is also provided with a lighting unit and a photosensor 5. Figure 3 is a schematic diagram of the position of the side view angle photosensitive sensor, such as Figure 3 As shown, the lighting unit and the photosensor 5 are both arranged on the window pad 6 of the washing machine door, wherein the photosensor 5 can at least receive light feedback from the upper half of the inner drum 2 .

[0064] When the lighting unit is working, the photosensitive sensor 5 receives light feedback from the inner wall of the inner drum 2 and determines whether the current light feedback is within the set range. If so, it is determined that the clothes 4 are not attached to the wall; if not, it is determined that the clothes 4 are attached to the wall.

[0065] The working process of the drum washing machine in the present invention is as follows:

[0066] After the rinsing stage, the dehydration stage begins. During the dehydration stage, the drum 2 stops rotating every first set time, and the control unit of the drum washing machine determines whether there is a phenomenon of clothes 4 sticking to the wall. If so, the inner drum 2 starts to rotate and rotates the part sticking to the wall to the blowing unit 3, and then the blowing unit 3 works to blow off the clothes 4 sticking to the inner wall of the inner drum 2, and the control unit of the drum washing machine continues to execute the preset program;

[0067] When there are multiple places sticking to the wall, the inner drum 2 rotates clockwise and counterclockwise alternately to loosen the clothes 4 during the process of rotating the place sticking to the wall to the blowing unit 3, ensuring that the subsequent blowing unit 3 can smoothly blow the clothes 4 off the inner wall of the inner drum 2.

[0068] Within the second set time before the end of the dehydration stage, the drum washing machine asks the user whether to add dehydration time, and provides corresponding suggestions to the user based on the ratio of the current weight of the clothes 4 to the initial weight of the clothes 4. If yes, the dehydration time equal to the blowing time is added to ensure the dehydration effect; if not, the preset program is executed.

[0069] At the end of the dehydration stage, the drum washing machine determines whether there is a phenomenon of clothes 4 sticking to the wall through the photosensitive sensor 5. If so, the inner drum 2 is controlled to rotate to rotate the part sticking to the wall to the blowing unit 3, and then the blowing unit 3 works to blow the clothes 4 off; if not, the washing process ends.

[0070] When the user chooses to dry the clothes 4 after dehydration, the present invention can blow off the clothes 4 adhering to the wall after the dehydration stage to ensure that the clothes 4 are heated evenly during the drying stage, and will not block the dehydration holes to affect the drying efficiency.

[0071] When and only when the drum washing machine determines that there is no clothing 4 adhering to the wall and there is no need to execute the next process, the drum washing machine of the present invention reminds the user to pick up the clothing 4. Specifically, the user can be reminded by a buzzer or by sending a prompt message to the user's mobile phone.

[0072] 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 washing machine control method, characterized in that: The upper part of the outer drum of the washing machine is provided with a blowing unit facing the inner drum; At the end of the dehydration stage, the washing machine determines whether there is a phenomenon of clothes sticking to the wall. If so, the blowing unit works; if not, the washing process ends.

2. A washing machine control method according to claim 1, characterized in that: When the washing machine determines that the clothes are attached to the wall, the part attached to the wall rotates to the blowing unit and the blowing unit starts to operate; When the washing machine determines that there are multiple places where the wall is attached, the inner drum rotates clockwise and counterclockwise alternately to rotate each place where the wall is attached to the blowing unit.

3. A washing machine control method according to claim 1, characterized in that: The washing machine is provided with a lighting unit and a light-sensitive sensor, and the light-sensitive sensor can at least receive light feedback from the upper half of the inner drum; The washing machine determines whether there is a phenomenon of clothes sticking to the wall, comprising the following steps: The lighting unit is turned on, and the photosensor determines whether the current light feedback is within a set range. If so, it is determined that the clothing does not stick to the wall; if not, it is determined that the clothing sticks to the wall.

4. A washing machine control method according to claim 1, characterized in that: During the dehydration stage, the drum stops rotating every first set time, and the washing machine determines whether there is a phenomenon of clothes sticking to the wall. If so, the blowing unit works; if not, a preset program is executed.

5. A washing machine control method according to claim 4, characterized in that: When the blowing unit works at least once in the dehydration stage, within the second set time before the end of the dehydration stage, the washing machine asks the user whether to add dehydration time. If so, add dehydration time equal to the blowing time. If not, execute the preset program.

6. A washing machine control method according to claim 5, characterized in that: When the washing machine inquires the user, it determines whether the ratio of the current laundry weight to the initial laundry weight is greater than a first set value. If so, it recommends additional dehydration time; if not, it recommends executing a preset program.

7. A washing machine control method according to claim 6, characterized in that: When the washing machine does not receive user feedback at the end of the dehydration stage, the washing machine determines whether to add dehydration time based on the ratio of the current laundry weight to the initial laundry weight; If the ratio is greater than the first set value, the dehydration time is supplemented; if the ratio is less than or equal to the first set value, the preset program is executed.

8. A washing machine control method according to any one of claims 1 to 7, characterized in that: When the washing machine detects that the door is open at the end of the dehydration stage but determines that there is a phenomenon of clothes sticking to the wall, the washing machine reminds the user.

9. A washing machine control method according to any one of claims 1 to 7, characterized in that: When and only when the washing machine determines that there is no phenomenon of clothes sticking to the wall and there is no need to execute the next process, the washing machine reminds the user to pick up the clothes.

10. A drum washing machine, characterized in that: A washing machine control method as described in any one of claims 1 to 9 is adopted.

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