CN114059278A

CN114059278A - Drum washing machine and control method thereof

Info

Publication number: CN114059278A
Application number: CN202010789519.8A
Authority: CN
Inventors: 孙景昊; 孟凡胜; 黄振兴; 许升
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2022-02-18

Abstract

The invention discloses a drum washing machine, which comprises a box body, an outer barrel arranged in the box body, a window gasket arranged between the box body and a front flange of the outer barrel, and a detection device arranged on the window gasket, wherein the detection device emits and receives a feedback grating and judges whether the shielding is carried out or not by utilizing the received feedback grating. According to the invention, whether the clothes are blocked is judged by the detection device through the received feedback grating, whether the clothes are clamped by the window pad and the detection device is blocked is further judged, and the phenomenon that the detection device receives the feedback grating is influenced, so that a user is reminded of timely processing, the clothes and the window pad are prevented from being damaged due to friction between the clothes and the window pad, or larger noise is generated, and even the washing machine cannot normally run. The invention also discloses a control method applied to the drum washing machine.

Description

Drum washing machine and control method thereof

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a drum washing machine and a control method thereof.

Background

A washing machine is a home appliance that removes various contaminants attached to laundry by stirring and rotating water, detergent, and water flow generated from the laundry and impact applied to the laundry, and is generally classified into a pulsator type washing machine and a drum type washing machine according to its washing principle. The pulsator type washing machine washes laundry by operating water current generated by a pulsator in a washing tub, and the drum type washing machine washes laundry by vertically dropping the laundry caused by rotation of a drum.

At present, a door body of a drum washing machine is sealed in an observation window of the washing machine, a rubber window gasket (or called door seal) is used for connecting a shell of the washing machine and an outer cylinder of the washing machine to prevent washing water from overflowing, and the matching of the window gasket and the outer cylinder can effectively eliminate impact damage to the washing machine caused by vibration of the outer cylinder. In order to avoid the friction between the inner drum and the window pad arranged on the outer drum to influence the normal rotation of the inner drum, the window pad has a crack, the crack for clamping the clothes into the window pad may exist in the operation process of the drum washing machine, once the clothes are clamped to rotate along with the inner drum, the clothes and the window pad are rubbed, the clothes and the window pad are damaged, larger noise is generated, and even the washing machine cannot normally operate.

The application number is 201810241908.X Chinese patent discloses a door seal assembly and a roller washing machine, wherein, the door seal assembly comprises an inner door seal and an outer door seal which are respectively connected with an outer barrel of the washing machine, the inner door seal is positioned between the outer door seal and the outer barrel, a set gap is arranged between the inner door seal and the inner barrel of the washing machine, the inner door seal comprises an elastic buffer ring and a support ring, the elastic buffer ring is covered on the outer side of the support ring, because the support ring is arranged in the door seal assembly and plays a supporting role for the elastic buffer ring, the deformation range of the elastic buffer ring can be reduced, the gap variation between the inner barrel and the door seal assembly is reduced, and therefore, the gap between the inner barrel and the door seal assembly is prevented from being clamped by clothes, but aiming at small clothes such as handkerchiefs or socks or baby clothes, the small clothes can not be clamped into a window pad in the operation process of the roller washing machine.

The present invention has been made in view of this situation.

Disclosure of Invention

The present invention is directed to overcome the disadvantages of the prior art, and provides a drum washing machine and a control method thereof, so as to effectively detect whether a window gasket is clamped with clothes.

In order to solve the technical problems, the invention adopts the technical scheme that:

a drum washing machine comprises a box body, an outer barrel arranged in the box body, a window pad arranged between the box body and a front flange of the outer barrel, and a detection device arranged on the window pad, wherein the detection device transmits and receives feedback gratings and judges whether the feedback gratings are shielded or not by utilizing the received feedback gratings.

Further, an opening for putting clothes is formed in a front flange of the outer barrel, the window pad is of a cylindrical structure, and one end of the window pad is connected with the opening of the outer barrel; be equipped with fold portion on the window pad, fold portion encloses into to have open recess, and the uncovered and urceolus opening of recess are linked together, and detection device locates on the fold portion, towards the inside transmission grating of recess.

Furthermore, the fold part extends for a circle along the window mat with the cylindrical structure and is arranged in a ring shape, and the lower part of the ring-shaped fold part is provided with at least one detection device; preferably, a plurality of detection devices are arranged at intervals along the circumferential direction of the annular folding part.

Further, the corrugated part comprises a first wall and a second wall which are arranged in a stacked mode at intervals, one end parts of the first wall and one end part of the second wall are corresponding and connected, and a gap between the first wall and the second wall forms a groove; openings forming grooves are formed in the other ends of the first wall and the second wall at intervals; the detection device is arranged at the open end of the first wall and emits a grating towards the open end of the second wall.

Further, the detection device is an infrared detection device, the infrared detection device comprises an infrared emitter and an infrared receiver, and the infrared receiver receives the infrared rays reflected after being emitted by the infrared emitter.

A control method of a drum washing machine is applied to any drum washing machine, whether a detection device is shielded or not is judged in real time in the washing process, and if the shielding time of the detection device is not less than T1, the detection device is judged to be shielded by window cushions and clothes.

Further, in the washing process, whether the light emitted by the detection device is received by the detection device within the set time after being emitted is detected in real time, if not, the detection device is judged to be shielded, and the shielded detection device starts to time.

Further, if the shielding time of any one detection device is more than or equal to T1, the clothes clamping degree of the window mat is judged to be slight, the detection device gives an alarm prompt to remind a user to cancel the alarm prompt or take out the clothes clamped in the window mat.

Further, if the shielding time of the plurality of detection devices is not less than T1, the clothes clamping degree of the window pad is judged to be serious, the detection devices give out an alarm prompt, the washing machine program automatically stops running, and a user is reminded to take out the clothes clamped in the window pad.

Further, the method specifically comprises the following steps;

s1: starting a washing program and a detection device, and judging whether the detection device is shielded or not in real time;

s2: if one or more detection devices are detected to be shielded, the detection devices start to time respectively;

s3: if the shielding time of any one detection device is more than or equal to T1, the detection device sends out an alarm prompt and executes the step S4 or S5; if the shielding time of the plurality of detection devices is not less than T1, the detection devices send out an alarm prompt and execute the step S6; if all the detection devices are shielded for less than T1, continuing to execute the washing program;

s4: pausing the washing program, and taking out the clothes clamped in the window pad;

s5: canceling the alarm prompt and continuing to execute the washing program;

s6: the washing machine program automatically stops running to remind the user to take out the clothes clamped in the window pad.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

1. Set up detection device on the window pad, whether the feedback grating that utilizes the receipt through detection device judges to be sheltered from, and further judge whether take place the clothing by the window pad centre gripping, shelter from detection device, influence the emergence that detection device received the feedback grating phenomenon, can remind the user in time to handle, avoid clothing and window pad to cause the damage because of taking place the friction, cause the unable normal operating of washing machine even.

2. The time that a plurality of detection device are sheltered from is < T1, and detection device can not send the warning suggestion to the user, can judge more accurately and the efficient whether accompany the clothing and shelter from detection device by the window pad, avoids producing the erroneous judgement because rivers or clothing shelter from detection device temporarily.

3. The time that any detection device is blocked is longer than or equal to T1, and the detection device sends out the warning suggestion to the user, and especially a plurality of infrared ray detection device send out the warning suggestion simultaneously or in proper order, not only can in time remind the user whether suspend the laundry process, and the user can also judge the severity of window pad centre gripping clothing.

4. Through setting up the mode that multiple unclamping had the clothing, the user can be based on the custom selection whether suspend current procedure and take out the clothing or continue the washing, under the prerequisite of proving drum type washing machine normal operating, realizes controlling drum type washing machine operation procedure more humanized, and then promotes user experience.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic structural diagram of a drum-type washing machine in an open state of a door body according to an embodiment of the present invention;

FIG. 2 is a schematic side view of a drum washing machine according to an embodiment of the present invention;

FIG. 3 is a schematic view of a window mat structure according to an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a window mat structure in accordance with an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an infrared detection device in an embodiment of the present invention;

fig. 6 is a flowchart of a control method of a drum washing machine according to an embodiment of the present invention.

In the figure: 1. a window pad; 11. a wrinkle part; 111. a first wall; 112. a second wall; 12. a smoothing section; 13. a groove; 2. a box body; 3. an outer cylinder; 31. a front flange; 4. an inner barrel; 5. a laundry input port; 6. a door body; 61. a capping portion; 62. a first boss; 63. a second boss; 7. an infrared detection device; 71. an infrared emitter; 72. an infrared receiver; 73. a timer; 74. an alarm controller; 75. a protective cover.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 and 2, the embodiment of the present invention provides a dual drum washing machine, which comprises a box body 2, an outer drum 3 and an inner drum 4, which are sequentially arranged from outside to inside, wherein a window pad 1 is arranged between the box body 2 and a front flange 31 of the outer drum 3, and the dual drum washing machine further comprises a detection device arranged on the window pad 1, wherein the detection device emits and receives a feedback grating, and judges whether the feedback grating is blocked or not by using the received feedback grating. The detection device can not only emit the optical grating to irradiate the window pad 1 or the surrounding environment of the window pad 1, but also receive the feedback optical grating, and the detection device judges whether the window pad is shielded or not by utilizing the received feedback optical grating, so that the detection device is judged whether an object is shielded or not on the window pad 1, the detection device is influenced to receive the feedback optical grating, and particularly the detection device is shielded by clothes clamped in the window pad 1.

As shown in fig. 2, in the present embodiment, the front flange 31 of the outer tub 3 has an opening for putting in the clothes, the box body 2 includes a front side plate provided with a clothes putting-in opening 5, the front side plate is provided with a door body 6 for opening or closing the clothes putting-in opening 5, the window mat 1 is a cylindrical structure, and one end of the window mat 1 is connected with the opening of the outer tub 3; the window pad 1 is provided with a corrugated part 11 connected with the front flange 31 of the outer barrel 3 in a sealing mode and a smooth part 13 connected with the front side plate of the box body 2 in a sealing mode, the corrugated part 11 is enclosed to form a groove 13 with an opening, the opening of the groove 13 is communicated with the opening of the outer barrel 3, and the detection device is arranged on the corrugated part 11 and emits gratings towards the inside of the groove 13. The open end of the groove 13 forms a crack, during the washing process, the clothes are easily brought into the groove 13 through the crack to shield the detection device, especially small clothes such as handkerchiefs, socks or baby clothes are clamped in the window pad 1, and even if the inner drum 4 rotates at a high speed, the small clothes cannot be thrown out of the window pad 1.

As shown in fig. 3 and 4, in the present embodiment, the corrugated portion 11 extends along the cylindrical window mat 1 for one circle and is arranged in a ring shape, and at least one detection device is arranged at the lower part of the ring-shaped corrugated portion 11; preferably, a plurality of detection devices are arranged at intervals along the circumferential direction of the annular corrugated portion 11. Because washing machine vibrations and clothing self action of gravity, in the laundry process, the clothing drops easily and gets into the lower part of annular fold portion 11 of window pad 1, through along a plurality of detection device of 11 circumference intervals arrangements of annular fold portion, can be more comprehensive carry out real time monitoring to recess 13 inside, judge whether have the clothing by the crack entering recess 13 of the open end formation of recess 13 in, avoid appearing the control dead angle, lead to clothing and window pad 1 because of the friction noise production, perhaps clothing and window pad 1 appear wearing and tearing, influence the normal clear of whole laundry process even.

As shown in fig. 3 and 4, in the present embodiment, the corrugated portion 11 includes a first wall 111 and a second wall 112 stacked and arranged at an interval, one end of the first wall 111 corresponds to and is connected to one end of the second wall 112, and a gap between the first wall 111 and the second wall 112 forms the groove 13; the other ends of the first wall 111 and the second wall 112 are provided with openings at intervals to form the grooves 13; the detection device is arranged at the open end of the first wall 111, and the detection device emits a grating towards the open end of the second wall 112; preferably, the open ends of the first wall 111 and the second wall 112 are connected to the body of the annular gasket 1; further preferably, the first wall 111 and the second wall 112 are integral with the body of the gasket 1; further preferably, the first wall 111 and the second wall 112 stacked at an interval extend to protrude toward the outer peripheral side of the cylindrical window mat 1. The detection device is arranged at the open end of the first wall 111 and sends out the grating towards the open end of the second wall 112, the detection device judges whether the detection device is shielded by the received feedback grating, and then whether clothes shield the open end of the groove 13 or enter the groove 13 through a crack formed by the open end of the groove 13 to shield the detection device can be judged in real time, and especially small clothes easily enter the groove 13 through the crack to shield the detection device in the washing process.

As shown in fig. 1 and 2, in the present embodiment, a window gasket 1 is disposed between a cabinet 2 and an outer tub 3, the window gasket 1 is a cylindrical structure, a front flange 31 of the outer tub 3 is provided with an opening for putting in clothes, a front side plate of the cabinet 2 is provided with a clothes putting-in opening 5, one end of the window gasket 1 is hermetically connected to an outer periphery of the opening of the outer tub 3, the other end of the window gasket 1 is hermetically connected to an outer periphery of the clothes putting-in opening 5, the window gasket 1 connects the opening of the outer tub 3 to the clothes putting-in opening 5 on the front side plate of the cabinet 2 to form a closed passage, and the window gasket 1 seals the drum washing machine after a door 6 of the drum washing machine is closed.

As shown in fig. 1, in the present embodiment, the door 6 includes a vertically arranged cover portion 61 correspondingly covering the laundry loading opening 5, a first boss 62 protruding in the axial direction is provided along one side of the cover portion 61, a second boss 63 protruding in the axial direction is provided on the protruding end surface of the first boss 62, the first boss 62 is arranged opposite to the laundry loading opening 5, and the second boss 63 is arranged opposite to the annular window gasket 1. When the door body 6 closes the clothes input opening 5, the first boss 62 extends into the clothes input opening 5, the second boss 63 is positioned in the annular window pad 1, and a gap is formed between the opening end of the groove 13 enclosed by the corrugated part 11 and the outer contour of the second boss 63. In the washing process, the inner barrel 4 rotates at a high speed to drive the clothes to rotate at a high speed, small clothes are easily thrown out of the inner barrel 4 and fall on the window pad 1, enter the groove 13 through a crack formed by the open end of the groove 13, and even if the inner barrel 4 rotates at a high speed, the small clothes cannot be thrown out of the groove 13.

As shown in fig. 5, in the present embodiment, the detecting device is an infrared detecting device 7, the infrared detecting device 7 includes an infrared transmitter 71 and an infrared receiver 72, the infrared transmitter 71 can actively emit infrared rays to irradiate the window pad 1 or the environment around the window pad 1, and the infrared receiver 72 can receive infrared rays reflected by the window pad 1 or the environment around the window pad 1, so that whether or not the infrared detecting device 7 is blocked by clothes is determined by whether or not the infrared rays reflected by the window pad 1 are received at a predetermined time.

As shown in fig. 5, in this embodiment, the infrared detection device 7 further includes a protective cover 75, a timer 73, and an alarm controller 74, the infrared emitter 71, the infrared receiver 72, the timer 73, and the alarm controller 74 are all surrounded by the protective cover 75 made of transparent resin, and the protective cover 75 is tightly attached to the annular groove 13 to implement waterproof protection.

Specifically, after the washing machine starts to operate, the infrared emitter 71 actively emits infrared rays, and the infrared rays reflected by the window mat 1 or the environment around the window mat 1 are received by the infrared receiver. If the infrared detection device 7 is not blocked by an object, the infrared emitter 71 continuously emits infrared rays, and the infrared emitter 72 continuously reflects the infrared rays through the window mat 1 or the environment around the window mat 1 and then receives the infrared rays, so that the alarm controller 74 does not give an alarm prompt. If there is the object to shelter from when the infrared ray by infrared emitter 71 transmission, infrared receiver 72 detects and takes place unusually, and timer 73 begins the timing, if surpass the settlement time anomaly and not got rid of, then alarm controller 74 sends the alarm suggestion, and the alarm suggestion is through buzzing sound, display screen or send the suggestion on APP, reminds the user to have smallclothes clothing to get into in the window pad 1, makes the laundry process more intelligent, promotes user's good sensitivity and viscidity.

Through above-mentioned drum type washing machine, set up the detection device who is used for shining and receives reflected light to window mat 1 or window mat 1 surrounding environment on window mat 1, especially infrared detection device 7, real-time detection infrared detection device 7 is sheltered from by the object, the time that rethread infrared detection device 7 was sheltered from, whether confirm that window mat 1 presss from both sides the clothing takes place, especially the recess 13 internal clamp clothing that fold portion 11 formed, can realize high-efficiently, accurately clamp the clothing to window mat 1 and detect, avoid clothing and window mat 1 to take place wearing and tearing because of the friction, influence washing machine normal operating even.

Example two

The control method of the drum washing machine is applied to any one of the drum washing machines, whether the detection device is shielded or not is judged in real time in the washing process, if the shielding time of the detection device is not less than T1, the window pad clothes clamping shielding detection device is judged to be generated, the condition that the temporary detection device is shielded by clothes or water flow in the washing process can be eliminated more accurately and efficiently, and therefore the window pad clothes clamping shielding detection device is determined to be generated.

In this embodiment, if the detecting device does not detect the light emitted by the detecting device and reflected by the window pad or the environment around the window pad within the predetermined time, and it is determined that the detecting device is blocked, the blocked detecting device or devices start timing. Whether the window pad clamps clothes or the clothes or water flow shields the detection device is judged according to the shielding time of the detection device, and therefore the phenomenon that the normal washing process is influenced due to misjudgment is avoided.

In this embodiment, if the time that any one of the detecting devices is blocked is longer than or equal to T1, it is determined that the degree of clothes clamped by the window mat is slight, and the detecting device sends out an alarm prompt to remind the user to cancel the alarm prompt or take out the clothes clamped in the window mat. On the premise of ensuring the normal operation of the drum washing machine, the user can control the operation program of the drum washing machine in a humanized way according to habits.

In this embodiment, if the time that the plurality of detection devices are blocked is greater than or equal to T1 at the same time, it is determined that the degree of clothes clamped by the window mat is serious, and the clothes or the window mat may be worn, or the normal operation of the washing machine may be affected, or even the washing machine may be damaged, the detection devices issue an alarm prompt, the washing machine program automatically stops operating, and the user is prompted to take out the clothes clamped in the window mat.

In this embodiment, if the time that all the detecting devices are blocked is less than T1, it is indicated that the detecting devices are not covered by clothes, especially small pieces of clothes, and may be water flow or clothes temporarily block the detecting devices, and the detecting devices are excluded from abnormal conditions, and the washing process is continuously executed.

Through the control method of the drum washing machine, various modes for releasing clamping of clothes are set, a user can select whether to pause the current program to take out the clothes or continue washing according to habits, and on the premise of guaranteeing normal operation of the drum washing machine, the operation program of the drum washing machine is controlled more humanized, and user experience is improved.

EXAMPLE III

As shown in fig. 6, a control method of a drum washing machine in the embodiment of the present invention includes the following specific steps:

s5: canceling the alarm prompt and continuing to execute the washing program;

As shown in fig. 6, in this embodiment, in step S2, it is determined whether any detection device is blocked in real time, if one or more detection devices are blocked, timing is started respectively to detect the blocked time, and it is determined whether a window gasket clamping the clothes occurs or the clothes or water flow blocks the detection device according to the blocked time, so as to avoid the occurrence of erroneous determination and influence on the normal washing process.

As shown in fig. 6, in this embodiment, in step S3, when the time that any one of the detecting devices is blocked is longer than or equal to T1, it indicates that the degree of clothes being held by the window pad is slight, and the user can control the operation procedure of the drum washing machine according to the habit, execute the laundry suspending procedure, take out the clothes held in the window pad, or cancel the alarm prompt, and continue to execute the laundry procedure; if the time for shielding the plurality of detection devices is more than or equal to T1, the degree that the window cushions clamp the clothes is serious, which may affect the normal operation of the washing machine and even cause the damage of the washing machine, so that the washing machine is forced to stop operating, and the user is reminded to process in time; if the time for which all the detection devices are blocked is less than the set time T1, it is indicated that the detection devices are temporarily blocked by the clothes or water flow, and the blocking is released, and the washing process is continued.

According to the control method of the drum washing machine, whether the detection device is shielded or not is judged in real time in the washing process, if the detection device is detected to be shielded, the detection device starts timing, whether the detection device is temporarily shielded or not caused by clothes or water flow is firstly eliminated, and then the degree that the clothes are clamped by the window cushions is further judged to be slight or serious, so that the operation program of the drum washing machine is humanized according to the habit of a user on the premise that the normal operation of the drum washing machine is ensured.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a drum type washing machine, includes the box and establishes the urceolus in the box, is equipped with window pad, its characterized in that between the preceding flange of box and urceolus: the window mat is characterized by further comprising a detection device arranged on the window mat, wherein the detection device transmits and receives the feedback grating and judges whether the feedback grating is shielded or not by utilizing the received feedback grating.

2. A drum washing machine according to claim 1, characterized in that: the front flange of the outer cylinder is provided with an opening for putting clothes, the window pad is of a cylindrical structure, and one end of the window pad is connected with the opening of the outer cylinder; be equipped with fold portion on the window pad, fold portion encloses into to have open recess, and the uncovered and urceolus opening of recess are linked together, and detection device locates on the fold portion, towards the inside transmission grating of recess.

3. A drum washing machine according to claim 2, characterized in that: the fold part extends for a circle along the cylindrical window gasket and is arranged in a ring shape, and the lower part of the ring-shaped fold part is provided with at least one detection device;

preferably, a plurality of detection devices are arranged at intervals along the circumferential direction of the annular folding part.

4. A drum washing machine according to claim 3, characterized in that: the corrugated part comprises a first wall and a second wall which are stacked at intervals, one end parts of the first wall and the second wall are corresponding and connected, and a gap between the first wall and the second wall forms a groove; openings forming grooves are formed in the other ends of the first wall and the second wall at intervals; the detection device is arranged at the open end of the first wall and emits a grating towards the open end of the second wall.

5. A drum washing machine according to any one of claims 1 to 4, characterized in that: the detection device is an infrared detection device, the infrared detection device comprises an infrared emitter and an infrared receiver, and the infrared receiver receives infrared rays reflected after being emitted by the infrared emitter.

6. A control method of a drum washing machine applied to the drum washing machine of any one of claims 1 to 5, characterized in that: and in the washing process, judging whether the detection device is shielded or not in real time, and if the shielding time of the detection device is more than or equal to T1, judging that the window pad clothes clamping detection device is shielded.

7. A drum washing machine control method according to claim 6, characterized in that: in the washing process, whether the light emitted by the detection device is received by the detection device at the set time after being emitted is detected in real time, if not, the detection device is judged to be shielded, and the shielded detection device starts to time.

8. A drum washing machine control method according to claim 7, characterized in that: if the shielding time of any one detection device is more than or equal to T1, the clothes clamping degree of the window pad is judged to be slight, the detection device sends out an alarm prompt to remind a user to cancel the alarm prompt or take out the clothes clamped in the window pad.

9. A drum washing machine control method according to claim 7, characterized in that: if the shielding time of the detection devices is not less than T1, the degree that the window pad clamps the clothes is judged to be serious, the detection devices give out an alarm prompt, the program of the washing machine automatically stops running, and a user is reminded to take out the clothes clamped in the window pad.

10. A drum washing machine control method according to any one of claims 6 to 9, characterized in that: the method specifically comprises the following steps;

s5: canceling the alarm prompt and continuing to execute the washing program;