A laundry treating apparatus

Abstract

The application discloses a clothes treatment device, which comprises a clothes treatment barrel, a water inlet assembly, a water outlet assembly, a microwave generating unit and a waveguide assembly. The microwave generating unit is used for generating microwaves. The waveguide assembly is connected with the microwave generating unit and is used for selectively conducting the microwaves generated by the microwave generating unit to at least one of the clothes treatment barrel, the water inlet assembly and the water outlet assembly. The microwave generating unit can provide heat for the medium in the clothes treatment barrel and can also be used for thawing the water inlet assembly and / or the water outlet assembly, so that the number of parts of the clothes treatment device is reduced, and the clothes treatment device can be expanded.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of laundry treating apparatuses, and more particularly, to a laundry treating apparatus having a microwave generating unit. BACKGROUND

[0002] Generally, a washing machine includes the following components: an outer tub for containing washing water; and an inner tub rotatably provided in the outer tub for containing laundry, etc. The laundry is washed as the inner tub rotates.

[0003] The washing machine can be classified into the following modes: a top-loading type in which the inner tub is vertically disposed and rotates about a vertical axis in order to load laundry from the upper side; and a front-loading type in which the inner tub is horizontally disposed and rotates about a horizontal axis in order to load laundry from the front side.

[0004] Further, the washing machine of the top-loading type can be broadly classified into a pulsator type and a drum type. The pulsator type performs washing by rotating a washing bar protruding in the center of the inner tub, and the drum type performs washing by a disc-shaped agitator formed in the lower portion of the inner tub or the inner tub itself.

[0005] The front-loading type is generally referred to as a drum washing machine, and a lifting device is provided to the inner circumferential surface of a drum constituting the inner tub. The drum washing machine performs washing by lifting laundry by the lifting device as the drum rotates and then dropping the laundry.

[0006] As described above, there are various types of washing machines, but regardless of the type, a water supply device for supplying washing water to the outer tub and / or the inner tub, and a drain device for discharging the washing water from the outer tub after performing washing, rinsing, dehydration, etc. are provided.

[0007] In an environment such as winter in which the temperature of outside air decreases to below zero, the washing machine of the related art has a problem in that the washing water is frozen and thus the water supply device or the drain device cannot be normally operated.

[0008] To solve the above problem, a patent with the application number CN201110184765 discloses a control method of a washing machine capable of accurately detecting whether the washing machine is frozen according to the variation amount of the output voltage of a water supply valve, a drain pump, or a drain valve, and a heater is provided at the water supply valve, the drain pump, or the drain valve to supply heat for thawing.

[0009] However, in the above-described scheme, if the heater is provided to the water supply valve, the drain pump, or the drain valve, the cost of the washing machine is increased, and too much space is occupied, which is not good for the expansion of the washing machine.

[0010] In view of the above, the present application has been made. SUMMARY

[0011] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a laundry treatment device which aims to utilize the special heating medium of microwaves to achieve the purpose of heating water in a laundry treatment tub, and to be used for thawing a water inlet assembly and / or a water outlet assembly, reducing the number of parts of the laundry treatment device, and helping the laundry treatment device to achieve the purpose of expansion.

[0012] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0013] A laundry treatment device comprises a laundry treatment tub, a water inlet assembly and a water outlet assembly, and further comprises a microwave generating unit for generating microwaves;

[0014] A waveguide assembly is connected with the microwave generating unit and is used for selectively conducting the microwaves generated by the microwave generating unit to at least one of the laundry treatment tub, the water inlet assembly and the water outlet assembly.

[0015] Further, the waveguide assembly comprises a first waveguide pipe, a second waveguide pipe and a third waveguide pipe;

[0016] The microwave inlet of the first waveguide pipe is in communication with the microwave outlet of the microwave generating unit, and the first microwave outlet of the first waveguide pipe is in communication with the laundry treatment tub;

[0017] The second waveguide pipe is arranged between the second microwave outlet of the first waveguide pipe and the water inlet assembly;

[0018] The third waveguide pipe is arranged between the third microwave outlet of the first waveguide pipe and the water outlet assembly.

[0019] Further, a switching unit is arranged in the first waveguide pipe, and is used for switching the microwaves entering from the microwave inlet to the first microwave outlet or the second microwave outlet or the third microwave outlet for output.

[0020] Further, the switching unit comprises a plurality of reflection plates,

[0021] The microwaves emitted by the microwave generating unit are output from the first microwave outlet or the second microwave outlet or the third microwave outlet under the interaction of the plurality of reflection plates;

[0022] Preferably, the switching unit comprises a first reflection plate, a second reflection plate and a third reflection plate;

[0023] The angles of the first reflection plate and the second reflection plate are constant;

[0024] The third reflection plate has a first angle, a second angle and a third angle;

[0025] When the third reflecting plate is at the first angle, the microwave emitted by the microwave generating unit is output by the first microwave outlet under the reflection of the first reflecting plate;

[0026] When the third reflecting plate is at the second angle, the microwave emitted by the microwave generating unit is output by the second microwave outlet under the joint reflection of the first reflecting plate and the third reflecting plate;

[0027] When the third reflecting plate is at the third angle, the microwave emitted by the microwave generating unit is output by the third microwave outlet under the joint action of the first reflecting plate, the second reflecting plate and the third reflecting plate.

[0028] Further, the first waveguide tube comprises a body and a cover connected with each other, and the first reflecting plate, the second reflecting plate and the third reflecting plate are arranged on the bottom wall of the body;

[0029] The third reflecting plate is pivotally connected with the bottom wall of the body;

[0030] Preferably, a pivot shaft of the third reflecting plate is connected with a driving unit for driving the third reflecting plate to pivot.

[0031] Further, the first waveguide tube comprises a body and a cover connected with each other, and the first reflecting plate, the second reflecting plate and the third reflecting plate are arranged on the bottom wall of the body;

[0032] The third reflecting plate is pivotally connected with the bottom wall of the body;

[0033] Preferably, a pivot shaft of the third reflecting plate is connected with a driving unit for driving the third reflecting plate to pivot.

[0034] Further, the reflecting surfaces of the first reflecting plate, the second reflecting plate and the third reflecting plate are metal plane structures.

[0035] Further, a plurality of elastic ribs for reflecting microwaves are arranged on the inner wall of the clothes treating barrel.

[0036] Preferably, the elastic ribs are arranged along the axial direction of the clothes treating barrel.

[0037] Further, the clothes treating barrel comprises a washing barrel and a water collecting device, and the microwave inlet of the first waveguide tube is in communication with the washing barrel.

[0038] Further, a cabinet is further included, and the clothes treating barrel is arranged in the cabinet, and the cabinet is provided with an air exhaust device in communication with the clothes treating barrel, for exhausting air of the clothes treating barrel.

[0039] Preferably, the air exhaust device comprises an air exhaust fan.

[0040] Compared with the prior art, the present application has the following beneficial effects.

[0041] 1、The microwave generating unit can be used to heat the water in the clothes treatment barrel and to defrost the water inlet assembly and / or the water outlet assembly, thereby reducing the number of parts of the clothes treatment device and facilitating the expansion of the clothes treatment device.

[0042] 2、The microwaves generated by the microwave generating unit are first introduced into the first waveguide, and then transmitted to the actual heating position through the microwave outlets of the first waveguide according to the actual demand, so that the microwave generating unit only needs to be provided with several microwave outlets, thereby simplifying the structure of the waveguide assembly.

[0043] 3、The microwave generating unit generates microwaves, and the transmission direction of the microwaves is controlled by the mutual reflection of the reflection plates, thereby simplifying the structure.

[0044] 4、The air supply unit of the electric heating device can provide air for the electric heating unit and achieve the effect of heat dissipation of the microwave generating unit, thereby avoiding the occupation of space by the additional heat dissipation system.

[0045] 5、The microwaves generated by the microwave generating unit and the heat generated by the electric heating unit can directly enter the washing barrel, thereby avoiding the loss of heat.

[0046] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0047] The accompanying drawings, which are part of the present application, serve to provide a further understanding of the present application, and the schematic embodiments of the present application and their descriptions serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the accompanying drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0048] Figure 1 is a schematic view of the internal structure of the clothes treatment device of the present application;

[0049] Figure 2 is a schematic view of the array structure of the reflection plates of the present application;

[0050] Figure 3 is a schematic view of the microwave path in the structure; Figure 2

[0051] Figure 4 is a schematic view of the microwave path in the structure; Figure 2 ​schematic diagram of another path of the microwave in the structure;

[0052] Figure 5 is Figure 2 schematic diagram of another path of the microwave in the structure;

[0053] Figure 6 schematic diagram of another angle of the internal structure of the clothes treatment device of the present application

[0054] Figure 7 schematic diagram of the structure of the first waveguide and the air guide channel of the present application

[0055] Figure 8 schematic diagram of the structure of the first turning plate and the second turning plate in the first position of the present application

[0056] Figure 9 schematic diagram of the structure of the first turning plate and the second turning plate in the second position of the present application

[0057] In the figure: 1, cabinet; 2, clothes treatment barrel; 3, water inlet assembly; 4, water outlet assembly; 5, microwave generating unit; 6, first waveguide; 61, first microwave outlet; 62, second microwave outlet; 63, third microwave outlet; 7, second waveguide; 8, third waveguide; 9, first reflecting plate; 10, second reflecting plate; 11, third reflecting plate; 12, electric heating unit; 13, air supply unit; 14, air guide channel; 15, partition plate; 16, first turning plate; 17, second turning plate; 18, elastic rib; 19, air exhaust fan; 20, air exhaust pipe.

[0058] It should be noted that the drawings and the written description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below in combination with 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.

[0060] In the description of the present application, it should be noted that the terms “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 limiting the present application.

[0061] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through 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.

[0062] As shown in Figures 1 to 9 The present application provides a laundry treatment device, comprising a laundry treatment tub 2, a water inlet assembly 3 and a water outlet assembly 4, further comprising a microwave generating unit 5 and a waveguide assembly, the microwave generating unit 5 is used to generate microwaves; the waveguide assembly is connected with the microwave generating unit 5, and is used to selectively conduct the microwaves generated by the microwave generating unit 5 to at least one of the laundry treatment tub 2, the water inlet assembly 3 and the water outlet assembly 4

[0063] In detail, the laundry treatment device comprises a cabinet 1, the cabinet 1 is provided with a laundry treatment tub 2 for treating laundry, the laundry treatment tub 2 is communicated with a water inlet assembly 3 and a water outlet assembly 4. The water inlet assembly 3 introduces clean water into the laundry treatment tub 2, and the water outlet assembly 4 discharges sewage in the laundry treatment tub 2. The cabinet 1 is further provided with a microwave generating unit 5, which can emit microwaves to provide the required heat for the laundry treatment tub 2. The microwave generating unit 5 is communicated with the laundry treatment tub 2, the water inlet assembly 3 and the water outlet assembly 4 through a waveguide assembly.

[0064] In some embodiments of the present application, the laundry treatment tub 2 comprises an inner drum and an outer drum, the microwave generating unit 5 is communicated with the inner drum, when the washing starts, the outer drum is first filled with water to soak the laundry, and then the inner drum starts to rotate to wash the laundry. After the heating function is turned on, the microwaves generated by the microwave generating unit 5 are introduced into the inner drum, and the water in the inner drum absorbs a large amount of microwaves to generate heat, thereby playing a role of heating. Since the inner drum is also made of stainless steel, it does not absorb microwaves, but only reflects them. Moreover, the elastic ribs 18 on the inner drum make the reflection of microwaves more random and uniform, thereby making the heating more uniform.

[0065] The laundry treatment device of the present application is a washer-dryer, the cabinet 1 is provided with an air exhaust device communicated with the laundry treatment tub 2, which is used to exhaust the water vapor in the laundry treatment tub 2; preferably, the air exhaust device comprises an air exhaust fan 19, and an air exhaust pipe 20 is arranged between the air exhaust fan 19 and the laundry treatment tub 2. Before drying, there is still some water in the laundry after being spun dry, so when the microwave generating unit 5 works and the microwaves are introduced into the inner drum, the residual water in the laundry will absorb microwaves to generate heat, and then be heated to evaporate into water vapor. At this time, the air exhaust fan 19 is turned on to directly exhaust the water vapor in the drum, which is similar to a direct-exhaust dryer. In the process of washing and drying, the heat effect and the non-thermal sterilization effect of microwaves play a role in sterilization and disinfection.

[0066] It can be seen that the microwave generating unit 5 can provide heat for the laundry treatment tub 2 in the washing process and can also provide heat for the laundry treatment tub 2 in the drying process.

[0067] In addition, as shown in Figure 1 When the water inlet assembly 3 and / or the water drainage assembly 4 of the laundry treatment apparatus are powered on, the change in the output voltage of the water inlet assembly 3 and / or the water drainage assembly 4 is detected; when the output voltage of the water inlet assembly 3 and / or the water drainage assembly 4 is detected to decrease by more than a predetermined value in the above step, it indicates that the water inlet assembly 3 and / or the water drainage assembly 4 sends an icing phenomenon and needs to perform a thawing operation. At this time, the microwaves emitted by the microwave generating unit 5 can be transmitted to the water inlet assembly 3 and / or the water drainage assembly 4 through the waveguide assembly to perform thawing.

[0068] In the above scheme, the microwave generating unit 5 can not only achieve the purpose of providing heat for the laundry treatment tub 2, but also be used for thawing the water inlet assembly 3 and / or the water drainage assembly 4, reducing the number of parts of the laundry treatment apparatus, and helping the laundry treatment apparatus to achieve the purpose of expansion.

[0069] The microwave generator in the above scheme can be composed of a magnetron.

[0070] In a further scheme, as shown in Figures 1 to 5 The waveguide assembly includes a first waveguide tube 6, a second waveguide tube 7, and a third waveguide tube 8; the microwave inlet of the first waveguide tube 6 is connected with the microwave generating unit 5, and the first microwave outlet 61 of the first waveguide tube 6 is connected with the laundry treatment tub 2; the second waveguide tube 7 is arranged between the second microwave outlet 62 of the first waveguide tube 6 and the water inlet assembly 3; and the third waveguide tube 8 is arranged between the third microwave outlet 63 of the first waveguide tube 6 and the water drainage assembly 4.

[0071] In the above scheme, the microwaves generated by the microwave generating unit 5 are first introduced into the first waveguide tube 6, and then transmitted to the positions actually needed to be heated according to actual needs through the microwave outlets of the first waveguide tube 6, so that the first waveguide tube 6 only needs to be provided with several microwave outlets, thereby simplifying the structure of the waveguide assembly.

[0072] In addition, as shown in Figure 1 The microwave generating unit 5 can be arranged at the right rear side of the outer cylinder, the first waveguide tube 6 is arranged above the outer cylinder in the axial direction of the outer cylinder, and the second waveguide tube 7 and the third waveguide tube 8 are led out from the first waveguide tube 6, so that they can utilize the space between the outer cylinder and the cabinet 1, thereby improving the space utilization rate in the cabinet 1 of the laundry treatment apparatus.

[0073] It can be understood that the right rear side refers to the position of the user facing the laundry treatment apparatus.

[0074] In a further aspect, the first waveguide 6 is provided with a switching unit for switching the microwave entered from the microwave inlet to the first microwave outlet 61 or the second microwave outlet 62 and / or the third microwave outlet 63.

[0075] In a preferred aspect, the switching unit comprises a plurality of reflecting plates, and the microwave emitted by the microwave generating unit 5 enters the clothes treating tub 2 or the second waveguide 7 and / or the third waveguide 8 through the interaction of the plurality of reflecting plates.

[0076] In the above aspect, the reflecting plates can reflect the microwave, and the conduction direction of the microwave is controlled through the combined reflection of the plurality of reflecting plates, thus the structure is simple and easy to realize.

[0077] In detail, as shown in the figure, the switching unit comprises a first reflecting plate 9, a second reflecting plate 10 and a third reflecting plate 11. Figures 2 to 5 The angle of the first reflecting plate 9 and the second reflecting plate 10 is invariable; the third reflecting plate 11 has a first angle, a second angle and a third angle.

[0078] When the third reflecting plate 11 is at the first angle, the microwave emitted by the microwave generating unit 5 is outputted by the first microwave outlet 61 through the reflection of the first reflecting plate 9.

[0079] When the third reflecting plate 11 is at the second angle, the microwave emitted by the microwave generating unit 5 is outputted by the second microwave outlet 62 through the combined reflection of the first reflecting plate 9 and the third reflecting plate 11.

[0080] When the third reflecting plate 11 is at the third angle, the microwave emitted by the microwave generating unit 5 enters the third microwave outlet 63 through the combined reflection of the first reflecting plate 9, the second reflecting plate 10 and the third reflecting plate 11.

[0081] In an optional aspect, the first waveguide 6 comprises a body and a cover connected with each other, the first reflecting plate 9, the second reflecting plate 10 and the third reflecting plate 11 are arranged on the bottom wall of the body; the third reflecting plate 11 is pivotally connected with the bottom wall of the body. Preferably, the pivot shaft of the third reflecting plate 11 is connected with a driving unit for driving the third reflecting plate 11 to pivot.

[0082] The microwave generating unit 5 is arranged in a mounting shell, and the mounting shell of the microwave generating unit 5 is connected with the body of the first waveguide 6 to form a structure similar to a volute, and the connection between the mounting shell of the microwave generating unit 5 and the body of the first waveguide 6 forms a throat.

[0083]

[0084] ​The first reflecting plate 9 is arranged at the side wall of the body of the first waveguide 6 at the position downstream of the throat and facing the microwave outlet of the microwave generating unit 5, and the second reflecting plate 10 is arranged at the same side wall of the body as the first reflecting plate 9. The third reflecting plate 11 is arranged on the bottom wall of the first waveguide 6. The third reflecting plate 11 can be controlled to be switched between the first angle, the second angle and the third angle under the driving of the driving unit.

[0085] As shown in Figure 3 , the angles of the first reflecting plate 9 and the second reflecting plate 10 are unchanged. The included angle between the first reflecting plate 9 and the side wall of the body is such that the microwave can enter the clothes treatment barrel 2 through the reflection of the first reflecting plate 9, at this time, the second reflecting plate 10 does not reflect the microwave, and the third reflecting plate 11 is at the first angle and also does not reflect the microwave, so that the microwave can smoothly enter the clothes treatment barrel 2.

[0086] As shown in Figure 4 , when the third reflecting plate 11 is controlled to be at the second angle, the microwave emitted by the microwave generating unit 5 is reflected to the third reflecting plate 11 through the first reflecting plate 9, and then reflected to the second microwave outlet 62 of the first waveguide 6 to enter the second waveguide 7, and then transmitted to the water inlet assembly 3 to provide heat for the water inlet assembly 3.

[0087] As shown in Figure 5 , when the third reflecting plate 11 is controlled to be at the third angle, the microwave emitted by the microwave generating unit 5 is reflected to the third reflecting plate 11 through the first reflecting plate 9, and then reflected to the second reflecting plate 10 through the third reflecting plate 11, and finally reflected to the third microwave outlet 63 of the first waveguide 6 to enter the third waveguide 8, and then transmitted to the water outlet assembly 4 to provide heat for the water outlet assembly 4.

[0088] In the above scheme, the angles of the first reflecting plate 9, the second reflecting plate 10 and the third reflecting plate 11 can be specifically set according to the relative positional relationship of the first waveguide 6, the second waveguide 7 and the third waveguide 8, and the present application does not limit this. As long as the above scheme can be realized, it is within the protection scope of the present application.

[0089] As shown in the accompanying drawings of the present application, Figures 3 to 5 , it is only the arrangement structure and arrangement angle of the first reflecting plate 9, the second reflecting plate 10 and the third reflecting plate 11 in one of the embodiments for realizing the purpose of controlling the microwave transmission direction by using the reflecting plate. It can be understood that there are many combinations of the arrangement structure and arrangement angle of the first reflecting plate 9, the second reflecting plate 10 and the third reflecting plate 11, as long as the scheme of controlling the microwave to be output by the first microwave outlet 61, the second microwave outlet 62 and the third microwave outlet 63 respectively can be realized, it is within the protection scope of the present application.

[0090] In some embodiments of the present application, the first waveguide 6 comprises a body and a cover which are connected to each other, the first reflecting plate 9 and the second reflecting plate 10 are formed by the sidewall of the body, and the third reflecting plate 11 is pivotally connected to the bottom wall of the body.

[0091] Preferably, the pivot shaft of the third reflecting plate 11 is connected with a driving unit for driving the third reflecting plate 11 to pivot.

[0092] In the above scheme, the first reflecting plate 9 and the second reflecting plate 10 can be formed by the sidewall of the body, that is, the first reflecting plate 9 and the second reflecting plate 10 are integrally formed with the first waveguide 6.

[0093] In some embodiments of the present application, the reflecting surfaces of the first reflecting plate 9, the second reflecting plate 10 and the third reflecting plate 11 are metal plane structures.

[0094] In the above scheme, in order to better realize the reflection of microwaves, the reflecting surfaces of the first reflecting plate 9, the second reflecting plate 10 and the third reflecting plate 11 are set as metal plane structures, so as to reduce the propagation loss of microwaves in the air.

[0095] It can be understood that microwaves can almost pass through glass, plastic and porcelain without being absorbed. Water and the like can absorb microwaves and heat themselves. Metal objects can reflect microwaves.

[0096] Therefore, the first waveguide 6, the second waveguide 7 and the third waveguide 8 of the present application are also made of metal materials.

[0097] In some embodiments of the present application, the inner wall of the clothes treatment barrel 2 is provided with a plurality of elastic ribs 18 for reflecting microwaves; preferably, the elastic ribs 18 are arranged along the axial direction of the clothes treatment barrel 2.

[0098] In the above scheme, by arranging the elastic ribs 18 on the inner wall of the clothes treatment barrel 2, the reflection of microwaves can be more random and uniform, and the heating can be more uniform. The surface of the elastic rib is a rhombic surface.

[0099] In some embodiments of the present application, the clothes treatment barrel 2 comprises a washing drum and a water collecting device, and the outlet of the shell is in communication with the washing drum.

[0100] In the above scheme, the outlet of the shell is in communication with the washing drum, so that the microwaves generated by the microwave generating unit 5 and the heat generated by the electric heating unit 12 can directly enter the washing drum, avoiding the loss of heat.

[0101] In some embodiments of the present application, as shown in Figures 7 to 9As shown, the clothes treatment device further comprises an electric heating device, which comprises an electric heating unit 12 and an air supply unit 13, the electric heating unit 12 is arranged in an air guide channel 14 which is in communication with the clothes treatment barrel 2, and the air supply unit 13 is arranged at the periphery of the microwave generating unit 5.

[0102] In detail, the microwave generating unit 5 generates heat during operation, in order to cool the microwave generating unit 5, a special heat dissipation system is usually arranged for the microwave generating unit 5 in the prior art.

[0103] In the present application, the air supply unit 13 of the electric heating device can not only provide air source for the electric heating unit 12, but also can achieve the effect of dissipating heat for the microwave generating unit 5, avoiding the extra space occupied by the heat dissipation system.

[0104] For example, the microwave generating unit 5 is used to heat the water in the clothes treatment barrel 2 during the washing process, but during the drying process, the hot air generated by the electric heating device is used to evaporate the water remaining on the clothes, and at the same time, the microwave generating unit 5 is cooled. When most of the water remaining on the clothes is evaporated, if the electric heating unit 12 is still used to implement drying, the drying efficiency is very low. If the electric heating unit 12 is controlled to stop running and the microwave generating unit 5 is controlled to start running at this time, the drying efficiency can be greatly improved, and the energy consumption of the clothes treatment device can be reduced.

[0105] In a further scheme, the air guide channel 14 and the first waveguide 6 share a set of housings, the inlet of the housing is in communication with the microwave generating unit 5 and the air supply unit 13, and the outlet is in communication with the clothes treatment barrel 2.

[0106] A partition 15 and a flow guide device are arranged in the housing; the partition 15 divides the inner cavity of the housing into the air guide channel 14 and the first waveguide 6; the flow guide device is used to guide the microwave to flow through the first waveguide 6 and the air to flow through the air guide channel 14.

[0107] In the above scheme, the inner cavity of a set of housings is divided into the air guide channel 14 and the first waveguide 6 by the partition 15, and the microwave or air is guided into the respective channel by the flow guide device, which can further simplify the structure of the clothes treatment device.

[0108] In addition, the electric heating unit 12 is arranged in the air guide channel 14, so that the electric heating unit 12 does not need to occupy extra space, and the clothes treatment device can further achieve the purpose of expansion.

[0109] In detail, as shown in the accompanying drawings, Figure 7 As shown, the flow guide device comprises a first deflector 16 and a second deflector 17, and the first deflector 16 and the second deflector 17 have a first position and a second position.

[0110] When the first deflector 16 and the second deflector 17 are in the first position, the microwave generated by the microwave generating unit 5 enters the clothes treating tub 2 via the first waveguide 6.

[0111] When the first deflector 16 and the second deflector 17 are in the second position, the air is driven by the air feeding unit 13 to enter the clothes treating tub 2 via the air guiding passage 14.

[0112] Specifically, as shown in Figure 8 , Figure 9 the air guiding device comprises a first deflector 16, which is arranged at one end of the partition 15 located at the microwave inlet and is pivotally connected with the partition 15, and the first deflector 16 has a first position and a second position.

[0113] When the first deflector 16 is in the first position, the first waveguide 6 is turned on, and the air guiding passage 14 is turned off.

[0114] When the first deflector 16 is in the second position, the first waveguide 6 is turned off, and the air guiding passage 14 is turned on.

[0115] Further, as shown in Figure 8 , Figure 9 the air guiding device further comprises a second deflector 17, which is arranged at one end of the partition 15 away from the microwave inlet and is pivotally connected with the partition 15;

[0116] the second deflector 17 has a first position and a second position.

[0117] When the second deflector 17 is in the first position, the second deflector 17 cooperates with the first deflector 16 to turn on the first waveguide 6 and turn off the air guiding passage 14.

[0118] When the second deflector 17 is in the second position, the second deflector 17 cooperates with the first deflector 16 to turn off the first waveguide 6 and turn on the air guiding passage 14.

[0119] Preferably, the air guiding device further comprises a driving device for driving the first deflector 16 and the second deflector 17 to pivot.

[0120] In detail, the first deflector 16 and the second deflector 17 are pivotally connected with the partition 15, and the edges of the first deflector 16 and the second deflector 17 connected with the partition 15 constitute the pivot axes of the pivoting.

[0121] In some embodiments of the present application, the laundry treatment tub 2 comprises a washing drum and a water collecting device, and the outlet of the housing is in communication with the washing drum.

[0122] In the above scheme, the outlet of the housing is in communication with the washing drum, and the microwaves generated by the microwave generating unit 5 and the heat generated by the electric heating unit 12 can directly enter the washing drum, avoiding the loss of heat.

[0123] The above washing drum is an inner drum without a dehydration hole, and a water drainage channel is arranged on the inner drum to drain water to the water collecting device, and then drained by the water drainage assembly 4.

[0124] In some embodiments of the present application, a plurality of elastic ribs 18 for reflecting microwaves are arranged on the inner wall of the laundry treatment tub 2; preferably, the elastic ribs 18 are arranged along the axial direction of the laundry treatment tub 2.

[0125] In the above scheme, by arranging the elastic ribs 18 on the inner wall of the laundry treatment tub 2, the reflection of microwaves can be more random and uniform, and the heating can be more uniform.

[0126] The laundry treatment device of the present application is a washer-dryer.

[0127] The laundry treatment device of the present application can adopt the following control method when performing a washing and protecting task:

[0128] S1, starting the laundry treatment device;

[0129] S2, judging whether the water inlet assembly 3 and / or the water drainage assembly 4 has ice formation phenomenon, if yes, starting the microwave generating unit to perform thawing, if no, performing the next step;

[0130] S3, performing a washing program;

[0131] S4, judging whether the washing program is finished, if yes, performing a drying program, and entering the next step, if no, returning to perform step S3;

[0132] S5, controlling the microwave generating unit 5 to start running;

[0133] S6, judging whether the air humidity in the laundry treatment tub 2 is reduced to a set value, if yes, controlling the microwave generating unit 5 to stop running, and controlling the electric heating unit 12 and the air supply unit 13 to start running, if no, returning to perform step S5;

[0134] S7, judging whether the drying program is finished, if yes, controlling the laundry treatment device to standby, if no, returning to perform step S6.

[0135] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any skilled person in the art can make some changes or modifications to the above-mentioned technical content with the above-mentioned prompt as equivalent embodiments with equivalent changes, but as long as it does not deviate from the technical solution of the present application, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. A laundry treating apparatus comprising a laundry treating tub, a water inlet assembly, and a water discharge assembly, the laundry treating apparatus being characterized by: Also included a microwave generating unit disposed in the installation housing for generating microwaves; an air supply unit disposed coaxially with the microwave generating unit at the periphery of the microwave generating unit and in the installation housing; an electric heating unit disposed in an air guide channel in communication with the air supply unit; a waveguide assembly connected with the microwave generating unit and for selectively conducting microwaves generated by the microwave generating unit to the laundry treatment tub, the water inlet assembly, and the water outlet assembly, wherein the microwaves emitted by the microwave generating unit are transmitted through the waveguide assembly to the water inlet assembly and / or the water outlet assembly for thawing; the waveguide assembly includes a first waveguide tube, a second waveguide tube, and a third waveguide tube; a microwave inlet of the first waveguide tube is in communication with a microwave outlet of the microwave generating unit, and a first microwave outlet of the first waveguide tube is in communication with the laundry treatment tub; the second waveguide tube is disposed between a second microwave outlet of the first waveguide tube and the water inlet assembly; the third waveguide tube is disposed between a third microwave outlet of the first waveguide tube and the water outlet assembly; the first waveguide tube is provided with a switching unit for switching the microwaves entering from the microwave inlet to the first microwave outlet or the second microwave outlet or the third microwave outlet for output; the switching unit includes a plurality of reflecting plates, and the microwaves emitted by the microwave generating unit are output from the first microwave outlet or the second microwave outlet or the third microwave outlet under the interaction of the plurality of reflecting plates; the air guide channel and the first waveguide tube share a set of housings, an inlet of the housings is in communication with the installation housing, and a partition plate for isolating the air guide channel and the first waveguide tube is disposed in the housings, one end of the partition plate is disposed at the inlet of the housings; the electric heating unit is disposed in the part of the air guide channel isolated from the first waveguide tube; one end of the partition plate disposed at the inlet of the housings and the end away from the inlet of the housings are respectively provided with a first deflection plate and a second deflection plate for guiding microwaves into the first waveguide tube or guiding air into the air guide channel; the first deflection plate and the second deflection plate are respectively pivotally connected with the partition plate, and the first deflection plate has a first position and a second position; when the first deflection plate is in the first position, the second deflection plate cooperates with the first deflection plate to make the first waveguide tube conductive and the air guide channel non-conductive; when the first deflection plate is in the second position, the second deflection plate cooperates with the first deflection plate to make the first waveguide tube non-conductive.

2. The laundry treatment apparatus according to claim 1, wherein: the switching unit includes a first reflecting plate, a second reflecting plate, and a third reflecting plate; the first reflecting plate and the second reflecting plate have a constant angle; the third reflecting plate has a first angle, a second angle, and a third angle; when the third reflecting plate is in the first angle, the microwaves emitted by the microwave generating unit are output from the first microwave outlet under the reflection of the first reflecting plate; When the third reflecting plate is at the second angle, the microwave emitted by the microwave generating unit is output by the second microwave outlet under the joint reflection of the first reflecting plate and the third reflecting plate. When the third reflecting plate is at the third angle, the microwave emitted by the microwave generating unit is output by the third microwave outlet under the joint reflection of the first reflecting plate, the second reflecting plate and the third reflecting plate.

3. The laundry treating apparatus according to claim 2, characterized in that: the first waveguide comprises a body and a cover connected to each other, and the first reflecting plate, the second reflecting plate and the third reflecting plate are arranged on a bottom wall of the body; the third reflecting plate is pivotally connected to the bottom wall of the body.

4. The laundry treating apparatus according to claim 3, characterized in that: a pivot shaft of the third reflecting plate is connected to a driving unit for driving the third reflecting plate to pivot.

5. The laundry treating apparatus according to claim 2, characterized in that: the first waveguide comprises a body and a cover connected to each other, and the first reflecting plate and the second reflecting plate are formed by side walls of the body; the third reflecting plate is pivotally connected to the bottom wall of the body.

6. The laundry treating apparatus according to claim 5, characterized in that: a pivot shaft of the third reflecting plate is connected to a driving unit for driving the third reflecting plate to pivot.

7. The laundry treating apparatus according to any one of claims 2 to 6, characterized in that: reflective surfaces of the first reflecting plate, the second reflecting plate and the third reflecting plate are metal plane structures.

8. The laundry treating apparatus according to any one of claims 1 to 6, characterized in that: a plurality of elastic ribs for reflecting microwaves are arranged on an inner wall of the laundry treating tub.

9. The laundry treating apparatus according to claim 8, characterized in that: the elastic ribs are arranged along an axial direction of the laundry treating tub.

10. The laundry treating apparatus according to any one of claims 1 to 6, characterized in that: the laundry treating tub comprises a washing tub and a water collecting device, and a microwave inlet of the first waveguide is in communication with the washing tub.

11. The laundry treating apparatus according to any one of claims 1 to 6, characterized in that: it further comprises a cabinet, the laundry treating tub is arranged in the cabinet, and the cabinet is provided with an air exhaust device in communication with the laundry treating tub.

12. The laundry treating apparatus according to claim 11, characterized in that: the air exhaust device comprises an air exhaust fan.

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