A washing machine and a control method thereof

Abstract

The present application belongs to the technical field of washing machines, and specifically discloses a washing machine and a control method thereof, the washing machine comprising: an inner drum; a load detection unit for detecting the position and / or height information of clothes in the inner drum; a stirring and spraying device arranged in the inner drum for stirring and spraying clothes in the inner drum, comprising a plurality of spraying holes arranged at different spraying directions and / or different heights; and a control unit of the washing machine for controlling the spraying holes at corresponding directions and / or corresponding heights to be opened according to the position and / or height information of clothes detected by the load detection unit. The washing machine provided by the present application can adjust the angle and / or spraying height of the water flow of the stirring and spraying device according to the position and / or height of clothes, so that the spraying water can be more comprehensively sprayed on the clothes, the spraying effect is improved, the washing and / or rinsing effect is improved, and water resources are saved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of washing machines, in particular, relates to a washing machine and a control method thereof. BACKGROUND

[0002] The spray structure of the existing washing machine is mostly fixed in one direction. Since the amount of clothes is not fixed when the user is washing, the water sprayed by the nozzle cannot avoid not being sprayed on the clothes during the spray rinsing stage, which causes uneven rinsing of the clothes in the drum and affects the rinsing effect of the whole machine. Moreover, the existing spray structure mostly sprays from the upper part of the inner drum downward. Since the clothes are mostly tangled together during the rinsing stage, the spray water can only spray and rinse the detergent and foam on the surface of the clothes, and cannot fully spray and rinse the clothes inside or located at the bottom of the drum. The spray is uneven, and the rinsing effect is not good.

[0003] The application number 202010092030.5 discloses a drum washing machine, which comprises an inner drum, a drive shaft, a spray stirring device, and a spray channel.

[0004] The above-mentioned application discloses a drum washing machine. Although the spray stirring device can spray and rinse the clothes at the bottom of the drum, the spray stirring device cannot adjust the angle and spraying height of the spray water flow according to the position and / or height information of the clothes in the drum, so that the spray water cannot be sprayed on the clothes comprehensively, resulting in poor spray effect and waste of water resources.

[0005] Therefore, the present application is proposed. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a washing machine which can control the opening of the spray holes in the corresponding direction and / or at the corresponding height according to the position and height of the clothes in the inner drum, effectively solving the problem that the existing stirring and spraying device cannot adjust the angle and spraying height of the spray water flow according to the position and / or height information of the clothes, the spray water cannot be sprayed on the clothes comprehensively, the spray effect is poor, and water resources are wasted.

[0007] To solve the above technical problems, the first aspect of the present application discloses a washing machine, which comprises:

[0008] an inner drum;

[0009] a load detection unit for detecting the position and / or height information of the clothes in the inner drum;

[0010] The stirring and spraying device is arranged in the inner drum and is used for stirring and spraying clothes in the drum, and comprises a plurality of spraying holes arranged at different spraying orientations and / or different heights.

[0011] The control unit of the washing machine controls the spraying holes at the corresponding orientations and / or the corresponding heights to be opened according to the position and / or height information of the clothes detected by the load detection unit.

[0012] By adopting the above scheme, the angle and the spraying height of the spraying water flow can be adjusted according to the position and / or the height of the clothes, the spraying water can be more comprehensively sprayed on the clothes, the spraying effect is improved, the washing and / or rinsing effect is improved, and water resources are saved

[0013] Further, the stirring and spraying device comprises:

[0014] The stirring body is used for stirring the clothes in the drum.

[0015] The spraying member is arranged in the stirring body and has a spraying channel connected with an external water source, and a row or a plurality of rows of spraying holes are arranged on the peripheral wall of the spraying channel.

[0016] By nesting the spraying member in the stirring body, the internal space of the stirring body is fully utilized, the occupation of the internal space of the washing machine is reduced, and the washing capacity is improved.

[0017] Preferably, the spraying holes are four rows and are arranged at an interval of 90 degrees, and each row of spraying holes comprises at least two spraying holes with different heights.

[0018] By adopting the above structure, the spraying water can be dispersed and sprayed from the center of the inner drum to the periphery, the clothes inside are effectively sprayed, the spraying effect is improved, the cleanliness of rinsing is improved, and the phenomenon of clothes entanglement is effectively avoided.

[0019] Preferably, the spraying holes are linearly and densely arranged as spraying orifices on the peripheral wall of the spraying channel, each row of spraying holes comprises 10-30 spraying orifices, the spraying effect is further improved, and the selectivity of the spraying height is more diversified.

[0020] Further, the washing machine further comprises a drive shaft which is a hollow shaft and drives the inner drum to rotate, and the stirring body is connected with the drive shaft.

[0021] The spraying member further comprises a spraying connecting pipe which penetrates through the drive shaft and is connected with the external water source at one end and is connected with the water inlet end of the spraying channel at the other end.

[0022] Further, the spraying member further comprises:

[0023] The spray switch unit is used to open or close spray holes in different directions and / or different heights according to the clothes information detected by the load detection unit.

[0024] Further, the spray channel comprises a main spray flow channel and a plurality of branch flow channels communicated between the main spray flow channel and each spray hole.

[0025] The spray switch unit comprises spray control valves arranged on the branch flow channels, and the spray control valves are used to control the conduction or blockage of the branch flow channels to control the opening and closing of the spray holes.

[0026] Further, each branch flow channel is communicated with n spray holes respectively, and each spray control valve controls the opening or closing of n spray holes simultaneously, wherein n≥2.

[0027] Preferably, each branch flow channel is communicated with n adjacent spray holes in each column of spray holes respectively, and each spray control valve controls the opening or closing of n adjacent spray holes in each column of spray holes simultaneously.

[0028] Preferably, n=5.

[0029] Further, the stirring body comprises a stirring shell in a cylindrical shape, and the stirring shell is provided with avoiding openings corresponding to the spray holes.

[0030] Preferably, the avoiding openings are a plurality of strip-shaped openings opened along the axial direction of the stirring shell.

[0031] Further, the load detection unit comprises a plurality of infrared sensors arranged at different height positions in the inner tub.

[0032] Further, along the length direction of the stirring body, the plurality of infrared sensors are arranged on the stirring body in sequence and at intervals.

[0033] The load detection unit provided in the present application realizes the detection of the direction and height of the clothes by using the above structure and infrared sensing technology, and the detection result is accurate and efficient, the detection structure is simple, the cost is low, and the use and promotion are easy.

[0034] The second aspect of the present application also provides a control method of the washing machine, and the method comprises:

[0035] Obtaining the position and / or height information of the clothes in the inner tub;

[0036] Based on the obtained position and / or height information of the clothes, the spray holes in the corresponding direction and / or corresponding height of the stirring and spraying device are opened.

[0037] After adopting the above technical scheme, the present application has the following beneficial effects compared with the prior art.

[0038] 1. The washing machine provided by the present invention can control the opening of the spray holes at the corresponding position and / or height according to the position and height of the clothes, so as to adjust the angle and spray height of the spray water flow according to the position and / or height of the clothes, so as to spray the spray water more comprehensively on the clothes, improve the spraying effect, improve the washing and / or rinsing effect, and save water resources at the same time.

[0039] 2. The washing machine provided by this invention, by nesting the spray component within the agitator body, fully utilizes the internal space of the agitator body, reduces the space occupied by the washing machine, and increases washing capacity. Furthermore, by integrating the spray component with the agitator body, the spray water is dispersed from the center of the inner tub outwards, enabling thorough and effective spraying of the clothes, improving the spraying effect, enhancing the cleanliness of rinsing, and effectively preventing clothes from tangling.

[0040] 3. The washing machine provided by the present invention uses multiple infrared sensors arranged at intervals along the length of the agitator body to detect the position and height of the clothes through infrared sensing technology. The detection results are accurate and efficient, and the detection structure is simple, low-cost, easy to use and promote.

[0041] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0042] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0043] Figure 1 This is a schematic diagram of the structural principle of the washing machine in an embodiment of the present invention;

[0044] Figure 2 This is a partial structural diagram of the spray nozzles of the spray component in an embodiment of the present invention when they are closed;

[0045] Figure 3 This is a partial structural diagram of the spray nozzle of the spray component in an embodiment of the present invention when the nozzle is open;

[0046] In the picture:

[0047] 1, inner drum; 2, load detection unit; 3, spray control valve; 4, spray hole; 5, spray member; 51, branch flow passage; 6, stirring main body; 7, water inlet valve; 8, spray connection pipe; 81, hard pipe section; 82, hose section; 9, outer drum; 10, filter structure.

[0048] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but are merely to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0050] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0051] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] The present application will be further described in detail below with reference to the embodiments.

[0053] Example One

[0054] As Figure 1 shown, the present embodiment discloses a washing machine, comprising:

[0055] an inner drum 1;

[0056] a load detection unit 2 for detecting the position and / or height information of the clothes in the inner drum 1;

[0057] a stirring and spraying device arranged in the inner drum 1 for stirring and spraying the clothes in the inner drum, comprising a plurality of spray holes 4 arranged at different spraying orientations and / or different heights;

[0058] The control unit of the washing machine controls the opening of the spray holes 4 of the corresponding orientation and / or corresponding height according to the position and / or height information of the laundry detected by the load detection unit 2.

[0059] In the above scheme, if the height of the laundry is detected as H, the spray holes 4 of H and below are controlled to open.

[0060] Specifically, if the load detection unit 2 detects that the laundry is concentrated in a certain orientation of the inner tub 1, the spray holes 4 of the stirring and spraying device in that orientation are controlled to open partially or entirely, so that the water flow is sprayed to the laundry along that orientation, improving the spraying effect while avoiding waste of water resources.

[0061] Further, when the amount of laundry to be washed or rinsed is small, if the load detection unit 2 detects that the height of the laundry in the inner tub 1 is less than a certain set height, the spray holes 4 of the set height and below are controlled to open, and the spray holes 4 above the set height are controlled to be closed, achieving accurate and efficient spraying of the laundry while reducing waste of water resources and improving user experience.

[0062] The washing machine provided in the embodiment can control the opening of the spray holes 4 of the corresponding orientation and / or corresponding height according to the position and height of the laundry, so as to adjust the angle and spraying height of the spraying water flow according to the position and / or height of the laundry, spray the water more comprehensively on the laundry, improve the spraying effect, improve the washing and / or rinsing effect, and save water resources.

[0063] Further, as shown in the figure, the stirring and spraying device comprises: Figure 1

[0064] a stirring body 6 for stirring the laundry in the tub, the stirring body 6 being hollow inside and having a set extension length along the central axis direction of the inner tub 1;

[0065] a spraying member 5 arranged in the stirring body 6, having a spraying channel connected to an external water source, and a row or multiple rows of spray holes 4 arranged on the peripheral wall of the spraying channel.

[0066] In the above scheme, by arranging a row or multiple rows of spray holes 4 on the peripheral wall of the spraying channel, each row of spray holes 4 includes at least two spray holes 4 of different heights, so as to spray the laundry in different orientations and / or different heights in the inner tub 1.

[0067] As shown in the figure, the spraying member 5 comprises: Figure 1 ​As shown, the washing machine provided by the embodiment has the spraying member 5 nested in the stirring body 6. By nesting the spraying member 5 in the stirring body 6, the internal space of the stirring body 6 can be fully utilized, the occupation of the internal space of the washing machine is reduced, and the washing capacity is improved. By integrating the spraying member 5 with the stirring body 6, the spraying water is also sprayed from the center of the inner drum 1 to the periphery, the clothes inside can be fully and effectively sprayed, the spraying effect is improved, the cleanliness of rinsing is improved, and the clothes winding phenomenon can be effectively avoided.

[0068] Preferably, the spraying holes 4 are arranged in four rows at an interval of 90 degrees. Each row of the spraying holes 4 includes at least two spraying holes 4 with different heights.

[0069] In the above scheme, four rows of spraying holes 4 are arranged on the peripheral wall of the spraying channel at an interval of 90 degrees. The spraying device can spray the clothes in the inner drum 1 in 360 degrees, and the spraying effect is further improved. Each row of the spraying holes 4 includes at least two spraying holes 4 with different heights to spray the clothes with different heights in the inner drum 1.

[0070] Preferably, in the embodiment, the spraying holes 4 are linearly and densely arranged on the peripheral wall of the spraying channel. Each row of the spraying holes 4 includes 10-30 spraying holes to further improve the spraying effect and make the spraying height more selective.

[0071] Further, as shown, Figure 1 The washing machine further includes a driving shaft which is a hollow shaft and drives the inner drum 1 to rotate. The stirring body 6 is connected with the driving shaft.

[0072] The spraying member 5 further includes a spraying connecting pipe 8 which is connected with the water inlet end of the spraying channel and communicates with an external water source through the driving shaft.

[0073] Specifically, the spraying member 5 includes a cylindrical spraying body with a spraying channel. The spraying holes 4 are arranged on the peripheral wall of the cylindrical spraying body. The bottom wall of the cylindrical spraying body is provided with a water inlet to form the water inlet end of the spraying channel.

[0074] The water inlet is connected with the external water source through the spraying connecting pipe 8. The spraying pipe communicates with the external water source through the driving shaft. In this way, the spraying connecting pipe 8 can be hidden, and the spraying connecting pipe 8 cannot be seen from the outside, the appearance of the washing machine is improved, and the spraying connecting pipe 8 cannot interfere with the design of other components in the drum or rub against the clothes.

[0075] Further, as shown in Figure 1 the water inlet end of the spraying channel is connected with the water inlet valve 7 of the washing machine through the spraying connecting pipe 8, and the water inlet valve 7 is connected with an external water source.

[0076] Preferably, in the first embodiment, the spraying connecting pipe 8 comprises a hard pipe section 81, one end of which is connected and fixed with the water inlet on the bottom wall of the cylindrical spraying body, and the other end penetrates through the driving shaft, and the driving shaft and the hard pipe section 81 are rotatably and sealingly connected, for example, the rotation sealing connection between the driving shaft and the hard pipe section 81 can be realized by an oil seal. The rotation sealing connection between the driving shaft and the hard pipe section 81 through the oil seal can not only ensure that the driving shaft does not rotate the spraying member 5 to improve the spraying effect, but also can support the spraying member 5 to ensure the stability of the structure of the spraying member 5.

[0077] Alternatively, in the second embodiment, the washing machine further comprises an outer tub 9 coaxially arranged with the inner tub 1, and the hard pipe section 81 and the outer tub 9 are connected and fixed through a supporting and connecting structure, specifically, the supporting and connecting structure is connected between the hollow shaft part of the hard pipe section 81 and the bottom wall of the outer tub 9 to support and fix the spraying member 5.

[0078] Alternatively, in the third embodiment, a water inlet is formed on the outer tub 9, and the water inlet end of the hard pipe section 81 is directly connected and fixed at the water inlet, and the water outlet end is connected and fixed with the water inlet on the bottom wall of the spraying body.

[0079] Preferably, in the above three embodiments, the spraying connecting pipe 8 further comprises a soft pipe section 82 connected between the hard pipe section 81 and the water inlet valve 7. By arranging the spraying connecting pipe 8 as the hard pipe section 81 and the soft pipe section 82, on the one hand, the support and fixation of the spraying member 5 can be realized, and on the other hand, the connection between the spraying member 5 and the water inlet valve 7 is facilitated.

[0080] More preferably, the hard pipe section 81 and the soft pipe section 82 are detachably connected and fixed through an adapter, so that when the spraying connecting pipe 8 is blocked, the inside of the hard pipe section 81 and the soft pipe section 82 can be easily cleaned by disassembling.

[0081] Further, the spraying member 5 further comprises:

[0082] a spraying switch unit for opening or closing the spraying holes 4 in different directions and / or different heights according to the clothes information detected by the load detection unit 2.

[0083] In the above scheme, the default state of the spray switch unit is the closed state of closing the spray holes 4, the spray switch unit and the control unit of the washing machine can be connected through wired or wireless communication, and the load detection unit 2 and the control unit are connected through wired or wireless communication.

[0084] When the rinsing program is performed, the load detection unit 2 starts to detect the position and / or height information of the clothes in the barrel, and feeds back the detected information to the control unit of the washing machine through wired or wireless communication, and the control unit of the washing machine controls the spray switch unit in the corresponding direction and / or height to open the spray holes 4, thereby achieving the purpose of adjusting the angle and spray height of the spray water flow according to the position and / or height of the clothes.

[0085] Further, in combination with Figures 1 to 3 As shown, the spray channel includes a main spray flow channel and a plurality of branch flow channels 51 connected between the main spray flow channel and each spray hole 4.

[0086] The spray switch unit includes a spray control valve 3 arranged on the branch flow channel 51, and the conduction or blockage of the branch flow channel 51 is controlled through the spray control valve 3, so as to control the opening and closing of the spray hole 4.

[0087] Further, the spray control valve 3 and the control unit of the washing machine are connected through wired or wireless communication, for receiving the control instruction of the control unit to open or close the spray hole 4.

[0088] Further, in combination with Figures 1 to 3 As shown, each branch flow channel 51 is connected with n spray holes 4, and each spray control valve 3 controls n spray holes 4 to be opened or closed at the same time, wherein n≥2.

[0089] Preferably, each branch flow channel 51 is connected with n adjacent spray holes 4 in each column of spray holes 4, and each spray control valve 3 controls n adjacent spray holes 4 in each column of spray holes 4 to be opened or closed at the same time.

[0090] Preferably, n=5.

[0091] In the above scheme, a plurality of spray holes 4 are controlled to be opened or closed at the same time through one spray control valve 3, thereby saving the control cost.

[0092] Further, the stirring body 6 includes a stirring shell in a cylindrical shape, and the stirring shell is provided with a avoiding opening corresponding to the spray hole 4; the avoiding opening is arranged to avoid the spray hole 4, so as to avoid interference and obstruction of the spray water flow.

[0093] Preferably, the avoiding openings are a plurality of long-strip openings opened along the axial direction of the stirring shell. By setting the long-strip openings as the avoiding openings, the processing is facilitated, and the avoiding effect is better.

[0094] Further, the load detection unit 2 comprises a plurality of infrared sensors arranged at different height positions in the inner tub 1. The orientation and height of the clothes are detected by the infrared sensing technology, and the detection result is accurate and efficient, the detection structure is simple, the cost is low, and the use is easy to promote.

[0095] Further, as shown in the drawings, along the length direction of the stirring body 6, a plurality of the infrared sensors are sequentially and spacedly arranged on the stirring body 6. By arranging the infrared sensors on the stirring body 6, the load detection unit 2 and the stirring and spraying device are integrally arranged, the load detection unit 2 and the stirring and spraying device are as a whole, the change to the washing machine itself is reduced, and the batch production and processing are facilitated. Figure 1

[0096] Preferably, in the embodiment, each infrared sensor corresponds to one spraying control valve 3, and each infrared sensor corresponds to one orientation and one height value, so that the one-to-one correspondence control of the infrared sensor and the spraying control valve 3 is realized, and the accuracy of spraying is improved.

[0097] More preferably, the circumferential wall of the stirring body 6 is provided with a mounting groove for mounting the infrared sensor, the infrared sensor is embeddedly mounted in the mounting groove, and the mounting groove is a profile structure formed by the shell wall of the stirring shell being inwardly recessed. By embeddingly mounting the infrared sensor in the mounting groove, the infrared sensor is prevented from rubbing against the clothes and interfering, damaging or falling off.

[0098] Alternatively, in another embodiment, a transparent protective cover can be arranged on the infrared sensor cover to prevent the infrared sensor from rubbing against the clothes and interfering, damaging or falling off.

[0099] The embodiment also provides a control method of the washing machine, and the control method comprises the following steps:

[0100] Obtaining the position and / or height information of the clothes in the inner tub;

[0101] Based on the obtained position and / or height information of the clothes, controlling the spraying holes of the corresponding orientation and / or corresponding height of the stirring and spraying device to be opened.

[0102] ​The laundry machine control method provided by the embodiment can control the spray holes in the corresponding orientation and / or the corresponding height to be opened according to the position and height of the laundry, so as to adjust the angle and spraying height of the spray water flow according to the position and height of the laundry, spray the laundry more comprehensively, improve the spraying effect, improve the washing and / or rinsing effect, and save water resources.

[0103] Preferably, the laundry machine control method provided by the embodiment, the control unit of the laundry machine controls the spray holes in the corresponding height of the stirring and spraying device to be opened according to the laundry height information, so as to save water resources.

[0104] Specifically, when the laundry machine enters the rinsing stage, the load detection unit is started to detect the laundry height information in the inner tub, the load detection unit feeds back the detected laundry height information to the control unit of the laundry machine, the control unit of the laundry machine controls the spray holes in the corresponding height and below to be opened and the spray holes above the height to be closed according to the laundry height information, so as to ensure the rinsing effect of the laundry and save water resources.

[0105] Example Two

[0106] The embodiment is a further limitation of the first embodiment, and the main difference from the first embodiment is that the spray connecting pipe 8 is provided with a filter structure 10.

[0107] Specifically, in combination with Figure 1 As shown in the figure, the filter structure 10 includes a filter screen detachably arranged in the spray connecting pipe 8, and the filter structure 10 arranged can effectively filter impurities in the spray water, so as to avoid clogging the spray holes 4 and affect the spraying effect. The maintenance personnel or user can regularly disassemble and clean the filter screen.

[0108] More preferably, the filter structure 10 is detachably arranged in the adapter between the hard pipe section 81 and the hose section 82, the adapter is provided with a mounting position for mounting the filter structure 10, and the filter structure 10 is limitingly mounted in the mounting position. When the filter structure 10 needs to be replaced, the hard pipe section 81 and the hose section 82 are disassembled, and then the filter structure 10 in the mounting position can be directly taken out, and the operation process is simple and convenient.

[0109] Further, the filter structure 10 includes a seat body and a filter core arranged in the seat body, the seat body has a cylindrical support main body, and the adapter includes a cylindrical connecting sleeve. The mounting position is a limit installation groove arranged on the inner wall of the connecting sleeve, and the end of the cylindrical support main body is abutted and limited on the limit installation groove.

[0110] Further, the filter core is a curved filter screen protruding towards the hard pipe section 81, and the outer periphery of the filter screen is fixedly connected to the inner peripheral wall of the seat body.

[0111] Further, the filter structure 10 further comprises a holding portion, which comprises a support beam connected in the seat body and a holding protruding plate fixedly connected to the support beam. When the filter screen needs to be cleaned or replaced, the filter structure 10 can be taken out as a whole by holding the holding protruding plate after the hard pipe section 81 and the soft pipe section 82 are disassembled.

[0112] Further, the support beam is an arc-shaped rod structure matching the curvature of the filter screen, and the arc-shaped support beam is fixedly supported on the lower surface of the filter screen. When the water flow impacts the filter screen, the impact force borne by the filter screen is large, and the filter screen is easily deformed and damaged after being used for a period of time. The provision of the support beam can effectively support and reinforce the filter screen, thereby improving the durability of the filter screen.

[0113] In the above scheme, the adapter can be fixedly arranged on the end of the soft pipe section 82, and a corresponding mating adapter is arranged on the end of the hard pipe section 81, and the adapter and the mating adapter can be connected by threads to achieve detachable connection of the hard pipe section 81 and the soft pipe section 82.

[0114] The above only describes the preferred embodiments of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with reference to the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. A washing machine, characterized in that, include: Inner tub; The load detection unit includes multiple infrared sensors installed at different height positions inside the inner tub, which are used to detect the position and height information of the clothes inside the inner tub; The mixing and spraying device includes: The mixing body has a predetermined extension length along the central axis of the inner barrel; A spraying component is disposed inside the mixing body. The spraying component has multiple rows of spray holes distributed along a set extension length. Each row of spray holes is connected to a branch flow channel. A spraying control valve is disposed on the branch flow channel. The number of spraying control valves corresponds one-to-one with the number of infrared sensors. The washing machine's control unit, based on the clothing position and / or height information output by the infrared sensor, controls the spray control valve at the corresponding orientation and / or height to open the spray nozzles, thereby adjusting the angle and spray height of the water flow.

2. The washing machine according to claim 1, characterized in that, The spray holes are arranged in four rows at 90-degree intervals, and each row of spray holes includes at least two spray holes of different heights.

3. The washing machine according to claim 2, characterized in that, Also includes: The drive shaft is a hollow shaft that drives the inner tub to rotate. The stirring body is connected to the drive shaft; The spraying component also includes a spraying connection pipe, one end of which passes through the drive shaft and is connected to an external water source, and the other end of which is connected to the water inlet of the spraying channel.

4. The washing machine according to claim 3, characterized in that, The spray channel includes a main spray channel and multiple branch channels connecting the main spray channel and each spray hole.

5. The washing machine according to claim 4, characterized in that, Each branch flow channel is connected to n spray holes, and each spray control valve simultaneously controls the opening or closing of n spray holes, where n≥2.

6. The washing machine according to claim 5, characterized in that, Each branch flow channel is connected to n adjacent spray holes in each column of spray holes, and each spray control valve simultaneously controls the opening or closing of n adjacent spray holes in each column of spray holes.

7. The washing machine according to claim 6, characterized in that, n＝5。 8. The washing machine according to any one of claims 2-7, characterized in that, The stirring body includes a cylindrical stirring shell, and the stirring shell has an avoidance opening corresponding to the spray hole.

9. The washing machine according to claim 8, characterized in that, The clearance opening is a series of long, narrow openings formed along the axial direction of the stirring shell.

10. The washing machine according to claim 1, characterized in that, Along the length of the stirring body, a plurality of infrared sensors are sequentially and spaced apart on the stirring body.

11. A control method for a washing machine having any one of claims 1-10, characterized in that, The method includes: Obtain information on the position and / or height of the clothes inside the inner drum; Based on the obtained information on the location and / or height of the clothing, the spray nozzles of the stirring spray device are controlled to open at the corresponding position and / or height.

Images