Drying air duct assembly and laundry treating apparatus including the same

Abstract

The present application relates to the technical field of clothes processing equipment, and particularly provides a drying air duct assembly and clothes processing equipment comprising the same, aiming to solve the problem that the existing drying air duct assembly cannot accurately obtain the temperature in the air duct, thereby affecting the use experience. To this end, the drying air duct assembly comprises a shell, a fan, a heating member and a temperature control member. The shell has an air inlet and an air outlet. The fan is arranged to introduce airflow outside the shell into the shell. The heating member is arranged in the shell and has a heating air duct. The temperature control member is arranged in the heating air duct and is used to detect the temperature in the heating air duct. The temperature control member and the heating body are connected in series to form a loop, and the loop is disconnected when the temperature in the heating air duct is greater than a set temperature. The present application can accurately monitor the temperature in the heating air duct, realize more accurate high-temperature hot air, and avoid the drying air duct assembly from being burned out due to excessively high temperature in the heating air duct.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes treatment equipment, and particularly provides a drying air duct assembly and clothes treatment equipment comprising the same. BACKGROUND

[0002] Clothes treatment equipment, as a common household appliance in daily life, brings great convenience to people's life. The clothes treatment equipment mainly includes a washing machine, a clothes care machine and a clothes dryer, etc. The clothes treatment equipment usually has a drying function. The air flowing through the heating air duct is heated by a heating member to generate hot air to accelerate the drying of clothes.

[0003] The existing drying air duct assembly of the clothes treatment equipment usually sets a temperature sensor on the shell of the heating air duct to control the temperature in the heating air duct. Since the temperature sensor set on the shell of the heating air duct indirectly feeds back the temperature in the heating air duct by measuring the temperature of the shell, the temperature inside the heating air duct cannot be accurately obtained, so that accurate high-temperature hot air cannot be realized, resulting in poor user experience.

[0004] Therefore, there is a need in the art for a new technical solution to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems, i.e. to solve the problem that the existing drying air duct assembly cannot realize accurate high-temperature hot air due to the inability to accurately obtain the temperature inside the heating air duct, thereby affecting the user experience.

[0006] The present application provides a drying air duct assembly. The drying air duct assembly comprises a shell having an air inlet and an air outlet; a fan arranged to introduce an airflow outside the shell into the shell through the air inlet; a heating member arranged in the shell and located between the air inlet and the air outlet, the heating member having a heating air duct, an inlet end of the heating air duct being in communication with the air inlet so that the airflow entering the shell through the air inlet flows into the heating air duct, the heating member comprising a heating body capable of heating the airflow flowing through the heating air duct, an outlet end of the heating air duct being in communication with the air outlet so that the hot airflow in the heating air duct flows out from the air outlet; and a temperature control member arranged in the heating air duct, the temperature control member being connected in series with the heating body of the heating member to form a communication loop, the temperature control member being used to detect the temperature in the heating air duct and to disconnect the loop when the temperature in the heating air duct is greater than a set temperature.

[0007] In the preferred technical scheme of the drying air duct assembly, the temperature control member comprises a first over-temperature protection switch connected in series with the heating body, and is configured to disconnect the circuit when the temperature in the heating air duct exceeds a first set temperature.

[0008] In the preferred technical scheme of the drying air duct assembly, the temperature control member further comprises a second over-temperature protection switch connected in series with the first over-temperature protection switch and the heating body, and is configured to disconnect the circuit when the temperature in the heating air duct exceeds a second set temperature, and not to connect the circuit when the temperature in the heating air duct is lower than the second set temperature, wherein the first set temperature is lower than the second set temperature.

[0009] In the preferred technical scheme of the drying air duct assembly, the heating member further comprises a support framework and an insulating shell, the support framework and the heating body are arranged in the insulating shell, the heating air duct is formed in the insulating shell, and the heating body is a superconducting heating wire wound outside the support framework.

[0010] In the preferred technical scheme of the drying air duct assembly, the drying air duct assembly further comprises a sliding plate and a driving mechanism, the temperature control member is mounted on the sliding plate, and the driving mechanism is configured to drive the sliding plate to move relative to the support framework to move the sliding plate out of the heating air duct.

[0011] In the preferred technical scheme of the drying air duct assembly, the driving mechanism comprises an electromagnetic member, the sliding plate is magnetic, and the electromagnetic member can generate a magnetic attraction force to move the sliding plate out of the heating air duct when the electromagnetic member is powered on, and the driving mechanism further comprises an elastic reset member to move the sliding plate back into the heating air duct after the electromagnetic member is powered off.

[0012] In the preferred technical solution of the above drying air duct assembly, the drying air duct assembly further comprises a first wire winding member and a second wire winding member, the first wire winding member and the second wire winding member are respectively located at two ends of the temperature control member, in the case that the slide plate moves out of the heating air duct, the power supply wire in the first wire winding member is unwound so that the slide plate moves towards the second wire winding member, the power supply wire between the slide plate and the second wire winding member is wound into the second wire winding member, in the case that the slide plate moves back into the heating air duct, the power supply wire in the second wire winding member is unwound so that the slide plate moves towards the first wire winding member, the power supply wire between the slide plate and the first wire winding member is wound into the first wire winding member.

[0013] In the preferred technical solution of the above drying air duct assembly, the drying air duct assembly further comprises a reverse stopping member arranged at the air outlet, the reverse stopping member is arranged to be capable of opening the air outlet to make the airflow in the heating air duct flow out of the air outlet, and the reverse stopping member is further arranged to be capable of closing the air outlet to prevent sundries outside the shell from entering into the shell through the air outlet.

[0014] In the preferred technical solution of the above drying air duct assembly, the reverse stopping member comprises a sealing base plate and a valve plate, the number of the sealing base plate and the valve plate is both plural, and the sealing base plate and the valve plate are sequentially and spacedly distributed, the sealing base plate is mounted on the shell to divide the air outlet into a plurality of air outlet channels, the valve plate is pivotally connected with the shell, the valve plate is arranged to be capable of abutting against the sealing base plate to close the air outlet channel when the valve plate is in a first working state, and the valve plate is arranged to be capable of moving away from the sealing base plate to open the air outlet channel when the valve plate is in a second working state.

[0015] In the second aspect, the present application provides a clothes treatment apparatus, the clothes treatment apparatus of the present application comprises the above-mentioned drying air duct assembly.

[0016] In the case of adopting the above technical solution, by arranging the temperature control member in the heating air duct, on the one hand, the temperature in the heating air duct can be accurately monitored, so that more accurate high-temperature hot air can be realized, the drying efficiency is improved, and the drying time is shortened; on the other hand, the circuit can be disconnected when the temperature in the heating air duct exceeds the set temperature, so as to avoid that the drying air duct assembly is burned out due to the too high temperature of the hot air in the heating air duct, and further to avoid the safety hazard.

[0017] Further, by arranging the first over-temperature protection switch, the hot air temperature in the heating air duct can be more accurately detected, and the circuit is disconnected when the hot air temperature in the heating air duct is too high, so as to avoid the superconducting heating wire continuing to heat and causing the temperature in the heating air duct to continuously rise and deviate from the set temperature. Meanwhile, when the hot air temperature in the heating air duct is lower than the set temperature, the circuit is connected, so that the superconducting heating wire continues to heat to raise the temperature in the heating air duct to the set temperature, thereby more accurately controlling the hot air temperature in the heating air duct. By arranging the second over-temperature protection switch, when the first over-temperature protection switch fails, the circuit is disconnected when the temperature in the heating air duct is detected to continuously rise and exceed the second set temperature, so as to avoid the superconducting heating wire continuing to heat and burning the shell, thereby avoiding causing burns or causing a fire, realizing double over-temperature protection of the drying air duct, and improving the use safety of the clothes treatment equipment.

[0018] Further, compared with arranging the heating member in the form of a heating pipe or a heating ring, arranging the heating member in the form of a superconducting heating wire wound on the support framework can avoid the phenomenon of red heating pipe surface in the prior art, thereby avoiding causing burns, fires and other safety hazards, and greatly improving the safety of the drying air duct. On the other hand, the superconducting heating wire has the advantages of small thermal resistance, high heat exchange efficiency, fast heating, high heating efficiency, and the like, thereby greatly improving the clothes drying efficiency of the clothes treatment equipment. Meanwhile, the superconducting heating wire has the characteristics of rapid heat dissipation and cooling after power-off, thereby reducing heat loss, improving heat utilization rate, and reducing energy waste.

[0019] Further, by arranging the sliding plate and the driving mechanism, and arranging the temperature control member on the sliding plate, on the one hand, compared with directly placing the temperature control member in the heating air duct, the temperature control member can be prevented from shaking in the heating air duct and affecting the accuracy of the temperature control member, thereby more accurately detecting the hot air in the heating air duct. On the other hand, when the temperature control member is in normal use, the temperature control member is installed on the sliding plate and moves into the heating air duct with the sliding plate, so as to facilitate the detection of the temperature in the heating air duct. When the temperature control member needs to be repaired or replaced, the sliding plate can be moved relative to the support framework by the driving mechanism, so as to move the sliding plate out of the heating air duct, thereby facilitating the repair of the temperature control member and improving the repair efficiency.

[0020] Further, compared with arranging the driving mechanism in the form of a motor, arranging the driving mechanism in the form of an electromagnetic member can avoid using a motor, thereby reducing the cost of the driving mechanism and the cost of the drying air duct assembly. Meanwhile, the structure of the driving mechanism can be made simpler, and the simplicity of the drying air duct assembly can be improved.

[0021] Further, by arranging the first and second wire collecting members, the power supply wire can be collected into the first or second wire collecting member when the slide plate is moved out of the heating air duct or moved back into the heating air duct, so that the power supply wire is prevented from being wound due to accumulation, and maintenance of the temperature control member is further facilitated.

[0022] Further, by arranging the reverse prevention member, on the one hand, laundry foam or lint in the laundry treatment apparatus can be prevented from entering the drying air duct assembly from the air outlet when the drying air duct assembly is in a non-working state, so that the drying air duct assembly is prevented from being blocked; on the other hand, the air outlet can be opened to allow airflow in the heating air duct to flow out of the air outlet when the drying air duct assembly is in a working state, so that hot air is conveniently delivered, and normal use of the drying air duct assembly is prevented from being affected.

[0023] Further, the reverse prevention member is arranged in the form of a sealing base plate and a valve plate, compared with the form of a motor and a valve plate, on the one hand, the reverse prevention member can be free of the use of a motor, so that the cost of the reverse prevention member is reduced, and the cost of the drying air duct assembly is further reduced, and on the other hand, the structure of the drying air duct assembly is simpler and lighter, and by arranging multiple sealing base plates and multiple valve plates, the hot air blown out of the air outlet can be divided into multiple airflows, so that the hot air is more uniformly blown into the drying chamber of the laundry treatment apparatus, and the drying effect is improved.

[0024] In addition, the laundry treatment apparatus further provided on the basis of the above technical solution has the beneficial effects of the drying air duct assembly, and compared with the laundry treatment apparatus before improvement, the hot air temperature of the laundry treatment apparatus of the present application is more accurate, the drying efficiency is higher, the safety of the apparatus is higher, the structure is simpler, the cost is lower, the maintenance of the laundry treatment apparatus is more convenient, and the user experience is better. BRIEF DESCRIPTION OF DRAWINGS

[0025] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0026] Figure 1 is a structure diagram of the drying air duct assembly of the present application Figure 1 ;

[0027] Figure 2 is a structure diagram of the drying air duct assembly of the present application Figure 2 ;

[0028] Figure 3 is Figure 2 a structure diagram of the cross section along line A-A in

[0029] Figure 4 is Figure 3Structure schematic diagram of the cross section along line B-B in the middle;

[0030] Figure 5 is Figure 1 Structure schematic diagram of the first upper shell hidden in the middle;

[0031] Figure 6 is Figure 5 Structure schematic diagram of the insulation shell partially hidden in the middle;

[0032] Figure 7 is Figure 3 is a local enlarged schematic diagram at C;

[0033] Figure 8 is a structure schematic diagram of the heating member of the present application;

[0034] Figure 9 is a structure schematic diagram of the heating member, the temperature control member, the sliding plate and the driving mechanism of the present application;

[0035] Figure 10 is a structure schematic diagram of the first take-up member of the present application.

[0036] List of reference signs:

[0037] 1, shell; 101, air inlet; 102, air outlet; 103, accommodating cavity; 11, upper shell; 1101, first upper shell; 1102, second upper shell; 12, lower shell; 13, clamping limiting rib; 14, sealing member; 15, fastening hole; 16, fixing column; 161, bolt hole; 2, fan; 30, heating air duct; 301, inlet end; 302, outlet end; 31, superconducting heating wire; 32, support framework; 321, sliding groove; 322, groove; 33, insulation shell; 41, sliding plate; 411, sliding block; 42, driving mechanism; 421, electromagnetic member; 422, elastic reset member; 431, first take-up member; 4311, take-up body; 4312, take-up shaft; 43121, first limiting portion; 43122, second limiting portion; 4313, torsion spring; 432, second take-up member; 5, non-return member; 51, sealing base plate; 52, valve plate; 53, rotating shaft; 6, power cord; 7, temperature control member; 71, first over-temperature protection switch; 72, second over-temperature protection switch. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0039] It should be noted that in the description of the present application, the terms "upper", "lower", "inner", "outer", "top" and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection. 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.

[0041] Please refer to Figures 1 to 3 , Figure 1 is a structural schematic diagram of the drying air duct assembly of the present application Figure 1 ; Figure 2 is a structural schematic diagram of the drying air duct assembly of the present application Figure 2 ; Figure 3 is Figure 2 a cross-sectional structural schematic view along line A-A in

[0042] Please refer to Figures 1 to 3 , the drying air duct assembly of the present application comprises a shell 1, a fan 2, a heating member and a temperature control member, the shell 1 has an air inlet 101 and an air outlet 102, and has a containing cavity 103 (as shown in Figure 5 and Figure 6 ) in the shell 1, wherein the air outlet 102 and the air inlet 101 are both in communication with the containing cavity 103, and the fan 2 is arranged to introduce the airflow outside the shell 1 into the shell 1 through the air inlet 101, wherein the air outlet 102 is in communication with the drying chamber of the clothes treatment equipment to deliver hot air into the drying chamber.

[0043] As Figures 1 to 3As shown, the heating component is disposed within the receiving cavity 103 of the housing 1 and located between the air inlet 101 and the air outlet 102. The heating component has a heating air duct 30, the inlet end 301 of which is connected to the air inlet 101 so that the airflow entering the housing 1 through the air inlet 101 flows into the heating air duct 30. The heating component includes a heating element that can heat the airflow flowing through the heating air duct 30. The outlet end 302 of the heating air duct 30 is connected to the air outlet 102 so that the hot airflow in the heating air duct 30 flows out from the air outlet 102. The temperature control component 7 is disposed within the heating air duct 30 and is connected in series with the heating element of the heating component to form a connected loop. The temperature control component 7 is used to detect the temperature within the heating air duct 30 and disconnects the loop when the temperature within the heating air duct 30 is greater than the set temperature.

[0044] With this setup, by incorporating a temperature control component 7 into the heating duct 30, the temperature within the heating duct 30 can be accurately monitored, enabling more precise high-temperature hot air delivery, improving drying efficiency, and shortening drying time. On the other hand, the circuit can be disconnected when the temperature within the heating duct 30 exceeds the set temperature, thus preventing the drying duct components from burning out due to excessively high hot air temperature and avoiding potential safety hazards.

[0045] It should be noted that, in practical applications, those skilled in the art can make the housing 1 a single piece, or the housing 1 can be composed of an upper housing and a lower housing, etc. Such adjustments and changes to the specific configuration of the housing 1 do not deviate from the principles and scope of the present invention and should be included within the protection scope of the present invention.

[0046] Preferably, such as Figures 1 to 3 As shown, the housing 1 of the present invention is formed by connecting an upper housing 11 and a lower housing 12, wherein an air inlet 101 is disposed on the lower housing 12, and an air outlet 102 is formed between the upper housing 11 and the lower housing 12.

[0047] This design makes it easier to install and disassemble the drying duct assembly compared to making the housing 1 a single piece, thus facilitating the maintenance of the drying duct assembly.

[0048] It should be noted that, in practical applications, those skilled in the art can configure the upper housing 11 and the lower housing 12 to be fixedly connected by fasteners, such as bolts, or the upper housing 11 and the lower housing 12 can be configured to form housing 1 by interlocking with each other, etc. Such adjustments and changes to the specific fixing method between the upper housing 11 and the lower housing 12 do not deviate from the principle and scope of the present invention, and should all be included within the protection scope of the present invention.

[0049] Continue readingFigures 1 to 3 and then referring to Figure 4 , Figure 4 is Figure 3 a schematic view of the sectional structure along the line B-B in

[0050] Preferably, as shown in Figures 1 to 4 , the upper shell 11 and the lower shell 12 of the present application are both provided with fastening holes 15, and the upper shell 11 and the lower shell 12 are fixedly connected by bolts, wherein a sealing member 14 is arranged between the upper shell 11 and the lower shell 12 to seal the shell 1.

[0051] It should be noted that in actual application, the upper shell 11 can be arranged as one piece, or can be arranged as two parts, or can be arranged as multiple parts, and the like, and such adjustment and change of the specific arrangement form of the upper shell 11 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0052] Preferably, as shown in Figures 1 to 3 , the upper shell 11 of the present application includes a first upper shell 1101 and a second upper shell 1102, wherein the first upper shell 1101 is arranged at the top of the heating member, and the first upper shell 1101 and the second upper shell 1102 are fixedly connected with the lower shell 12 by bolts.

[0053] Through such arrangement, the first upper shell 1101 can be detached from the lower shell 12 to overhaul the heating member (as shown in Figure 5 and Figure 6 ), without the need to detach the entire upper shell 11 from the lower shell 12, thereby improving the overhaul efficiency.

[0054] It should be noted that in actual application, the air inlet 101 is not limited to being arranged on the lower shell 12, and the air outlet 102 is not limited to being arranged between the upper shell 11 and the lower shell 12, for example, the air inlet 101 and the air outlet 102 can both be arranged on the lower shell 12, or can both be arranged on the upper shell 11, or can both be arranged between the upper shell 11 and the lower shell 12, and the like, and such adjustment and change of the specific arrangement position of the air inlet 101 and the air outlet 102 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0055] It should be noted that in actual application, the air inlet 101 is not necessarily arranged on the lower shell 12, for example, the air inlet 101 can also be arranged on the upper shell 11, and the like, and such flexible adjustment and change does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0056] Of course, preferably, the air inlet 101 is arranged on the lower shell 12, and the air outlet 102 is formed between the upper shell 11 and the lower shell 12.

[0057] It should be noted that in actual application, the fan 2 can be arranged outside the shell 1, wherein the air outlet of the fan 2 is communicated with the air inlet 101, or the fan 2 can also be arranged inside the shell 1, wherein the air inlet of the fan 2 is communicated with the air inlet 101, and the air outlet of the fan 2 is communicated with the inlet end 301 of the heating channel 30, and the like, and such adjustment and change of the specific arrangement position of the fan 2 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0058] Preferably, as shown in Figures 1 to 4 , the fan 2 of the present application is arranged inside the shell 1 and located between the air inlet 101 and the air outlet 102, the air inlet of the fan 2 is communicated with the air inlet 101, and the air outlet of the fan 2 is communicated with the inlet end 301 of the heating channel 30.

[0059] Through such arrangement, i.e., arranging the fan 2 inside the shell 1, the volume of the drying air duct assembly can be greatly reduced, thereby reducing the installation space of the drying air duct assembly.

[0060] It should be noted that in actual application, the heating member can be arranged as a heating pipe, wherein the heating channel 30 is formed inside the heating pipe, or the heating member can also be arranged as a heating ring, wherein the heating channel 30 is formed inside the heating ring, or the heating member can also be arranged as a heating body, a support framework and a duct shell, a superconducting heating wire or an electromagnetic heating coil is wound on the support framework, and the heating channel 30 is formed inside the duct shell, and the like, and such adjustment and change of the specific arrangement type of the heating member does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0061] Continuing to refer to Figure 3 and Figure 4 , and then referring to Figure 5 and Figure 6 , Figure 5 is Figure 1 a structure schematic view of the first upper shell hidden in Figure 6 is Figure 5 a structure schematic view of the insulation shell partially hidden in

[0062] Preferably, as shown in the drawings, the heating member of the present application further comprises a support skeleton 32 and an insulating shell 33, the support skeleton 32 and the heating body are both arranged in the insulating shell 33, the heating air duct 30 is formed in the insulating shell 33, and the heating body is a superconducting heating wire 31, which is wound on the outside of the support skeleton 32. Figures 3 to 6

[0063] By such an arrangement, compared with arranging the heating member in the form of a heating tube or a heating ring, arranging the heating member in the form of the superconducting heating wire 31 wound on the support skeleton 32, on the one hand, avoids the phenomenon of red heating of the surface of the heating tube in the prior art, thereby avoiding the safety hazards such as scalding, fire, etc., greatly improving the safety of the drying air duct; on the other hand, since the superconducting heating wire 31 has the advantages of small thermal resistance, high heat exchange efficiency, etc., it can quickly heat up and improve the heating efficiency, greatly improving the drying efficiency of the clothes treatment equipment. At the same time, the superconducting heating wire 31 has the characteristics of extremely fast heat dissipation and cooling after power-off, which can reduce heat loss, improve heat utilization rate, and reduce energy waste.

[0064] It should be noted that in actual application, the heating body is not limited to being arranged in the form of a superconducting heating wire 31, for example, the heating body can also be arranged in the form of a superconducting heating sheet, etc., and such adjustment and change of the specific arrangement form of the superconducting heating body does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the heating body is arranged in the form of a superconducting heating wire 31.

[0065] It should be further noted that in actual application, the cross section of the support skeleton 32 can be arranged in the form of a rectangle, or the cross section of the support skeleton 32 can also be arranged in the form of a circle, or the cross section of the support skeleton 32 can also be arranged in the form of X, etc., and such adjustment and change of the specific arrangement form of the support skeleton 32 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0066] Preferably, as shown in the drawings, the support skeleton 32 of the present application comprises support plates, the number of the support plates is four, the four support plates are connected with each other to form the support skeleton 32 with a cross section in the form of X, a plurality of grooves 322 are arranged at the edge position of the support skeleton 32, the superconducting heating wire 31 is spirally wound on the support skeleton 32 in the form of X, and the superconducting heating wire 31 is located in the grooves 322 on the support skeleton 32. Figures 3 to 6

[0067] ​​By such an arrangement, by arranging the cross section of the support framework 32 into an X shape, the contact area between the superconducting heating wire 31 and the support framework 32 can be reduced, thereby improving the heat dissipation efficiency of the superconducting heating wire 31, and further improving the drying efficiency of the drying air duct; by arranging a plurality of grooves 322 at the edge position of the support framework 32, and embedding the superconducting heating wire 31 into the grooves 322, the dislocation of the superconducting heating wire 31 can be prevented, and the superconducting heating wire 31 from falling off the support framework 32, thereby improving the stability of the drying air duct assembly.

[0068] It should be noted that in actual application, the four support plates can be arranged to be integrally formed, or can be arranged to be bonded with each other, etc., and such flexible adjustment and change does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0069] Preferably, the four support plates are arranged to be integrally formed.

[0070] It should be noted that in actual application, the support framework 32 can be arranged to be mica material, such as mica sheet, or can be arranged to be ceramic material, or can be arranged to be glass fiber ceramic composite material, etc., and such adjustment and change of the specific material of the support framework 32 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0071] Preferably, the support framework 32 is arranged to be made of mica sheet.

[0072] It should be noted that in actual application, the insulating shell 33 can be arranged to be mica material, such as mica sheet, or can be arranged to be ceramic material, or can be arranged to be glass fiber ceramic composite material, etc., and such adjustment and change of the specific material of the insulating shell 33 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0073] Preferably, the insulating shell is arranged to be mica material.

[0074] It should be noted that in actual application, the insulating shell 33 can be arranged to be fixed in the shell body 1 by a fastener, or can be arranged to be clamped in the shell body 1, etc., and such adjustment and change of the specific fixing manner of the insulating shell 33 in the shell body 1 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0075] Preferably, as Figures 4 to 6As shown, a plurality of clamping limiting ribs 13 are arranged in the shell 1 to clamp the insulating shell 33 in the shell 1.

[0076] By arranging the plurality of clamping limiting ribs 13 in the shell 1, on the one hand, the insulating shell 33 can be clamped in the shell 1, compared with the way that the insulating shell 33 is arranged to be fixed in the shell 1 by fasteners, the use of fasteners can be reduced, thereby reducing the parts of the drying air duct assembly, and improving the installation efficiency of the insulating shell 33; on the other hand, by arranging the plurality of clamping limiting ribs 13, the airflow introduced into the shell 1 by the fan 2 can enter the heating air duct 30 more, thereby improving the hot air output of the air outlet 102, and further improving the drying efficiency.

[0077] It should be noted that in actual application, the number of clamping limiting ribs 13 is not limited to be a plurality, for example, the number of clamping limiting ribs 13 can also be set to two, etc., and such adjustment and change of the specific number of clamping limiting ribs 13 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the number of clamping limiting ribs 13 is set to be a plurality.

[0078] It should be further noted that in actual application, the temperature control member 7 can be arranged as an over-temperature protection switch only, wherein the over-temperature protection switch is connected in series with the heating body, the over-temperature protection switch 7 is arranged to disconnect the circuit when the temperature in the heating air duct 30 exceeds the first set temperature, and the over-temperature protection switch 7 is also arranged to connect the circuit when the temperature in the heating air duct 30 is lower than the first set temperature, or the temperature control member 7 can also be arranged as an over-temperature fuse switch only, the over-temperature fuse switch is arranged to disconnect the circuit when the temperature in the heating air duct 30 exceeds the second set temperature, or the temperature control member 7 can also be arranged as an over-temperature protection switch 71 and an over-temperature fuse switch 72 at the same time, wherein the over-temperature protection switch 71 and the over-temperature fuse switch 72 are both connected in series with the heating body, etc., and such adjustment and change of the specific type of the temperature control member 7 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0079] Preferably, as Figure 3As shown, the temperature control member 7 of the present application comprises a first over-temperature protection switch 71 and a second over-temperature protection switch 72, both of which are connected in series with the heating body, the first over-temperature protection switch 71 is configured to disconnect the circuit when the temperature in the heating air duct 30 exceeds the first set temperature, and the first over-temperature protection switch 71 is also configured to connect the circuit when the temperature in the heating air duct 30 is lower than the first set temperature, the second over-temperature protection switch 72 is configured to disconnect the circuit when the temperature in the heating air duct 30 exceeds the second set temperature, and the second over-temperature protection switch 72 does not connect the circuit when the temperature in the heating air duct 30 is lower than the second set temperature, wherein the first set temperature is lower than the second set temperature.

[0080] Through such a configuration, on the one hand, by configuring the first over-temperature protection switch 71, the hot air temperature in the heating air duct 30 can be more accurately detected, and the circuit is disconnected when the hot air temperature in the heating air duct 30 is too high, which can avoid the continuous heating of the superconducting heating wire 31 to cause the temperature in the heating air duct to continue to rise and deviate from the set temperature, and at the same time, the circuit is connected when the hot air temperature in the heating air duct 30 is lower than the set temperature, so that the superconducting heating wire 31 continues to heat to raise the temperature in the heating air duct 30 to reach the set temperature, thereby more accurately controlling the hot air temperature in the heating air duct 30; on the other hand, by configuring the second over-temperature protection switch 72, when the first over-temperature protection switch 71 fails, the circuit is disconnected when the temperature in the heating air duct 30 is detected to continue to rise and exceed the second set temperature, thereby avoiding the superconducting heating wire 31 from continuing to heat and burning the shell 1, thereby avoiding causing burns or causing a fire, realizing double over-temperature protection of the drying air duct, and improving the use safety of the clothes treatment equipment.

[0081] It should be noted that in actual application, the temperature control member 7 can be arranged at the inlet end 301 of the hot air passage 30, or can also be arranged at the middle part of the hot air passage 30, or can also be arranged at the outlet end 302 of the hot air passage 30, etc., and such adjustment and change of the specific arrangement position of the temperature control member 7 does not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0082] Preferably, the temperature control member 7 is arranged at the middle part of the hot air passage 30.

[0083] It needs to be explained that one end of the superconducting heating wire 31 is connected with the power line 6, the other end of the superconducting heating wire 31 is wound on the support framework 32 and then connected with the first over-temperature protection switch 71 and the second over-temperature protection switch 72 in series through the power line 6, the power line 6 is connected with the positive and negative poles of the external power supply after being led out from the shell 1, forming a continuous loop, wherein the superconducting heating wire 31 generates heat after being electrified and heats the airflow in the heating air duct 30, and the first over-temperature protection switch 71 and the second over-temperature protection switch 72 detect the temperature in the heating air duct 30 respectively.

[0084] It also needs to be explained that in actual application, the first over-temperature protection switch 71 and the second over-temperature protection switch 72 can be directly arranged in the heating air duct 30 through the power line 6 by those skilled in the art, or the first over-temperature protection switch 71 and the second over-temperature protection switch 72 can be arranged on the support framework 32, etc., and the adjustment and change of the specific arrangement position of the first over-temperature protection switch 71 and the second over-temperature protection switch 72 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0085] It also needs to be explained that in actual application, the temperature control member 7 can be arranged to be relatively fixed with the support framework 32 by those skilled in the art, or the temperature control member 7 can be arranged to be slidably connected with the support framework 32, so as to remove the temperature control member 7 from the heating air duct 30 when the temperature control member 7 is maintained, etc., and the adjustment and change of the specific mounting mode of the temperature control member 7 on the support framework 32 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0086] Next, refer to Figure 8 and Figure 9 , Figure 8 is a structural schematic view of the heating member of the present application; Figure 9 is a structural schematic view of the heating member, the temperature control member, the sliding plate and the driving mechanism of the present application.

[0087] Preferably, as shown in Figure 8 and Figure 9 , the drying air duct assembly of the present application further comprises a sliding plate 41 and a driving mechanism 42, the temperature control member 7 is mounted on the sliding plate 41, and the driving mechanism 42 is arranged to drive the sliding plate 41 to move relative to the support framework 32 to remove the sliding plate 41 from the heating air duct 30.

[0088] Through the arrangement, on one hand, the temperature control member 7 can be prevented from moving in the heating air duct 30 to affect the accuracy of the temperature control member 7, so that the hot air in the heating air duct 30 can be more accurately detected; on the other hand, when the temperature control member 7 is normally used, the temperature control member 7 is installed on the sliding plate 41 and moves into the heating air duct 30 along with the sliding plate 41, so that the temperature in the heating air duct 30 can be conveniently detected; when the temperature control member 7 needs to be repaired or replaced, the sliding plate 41 can be moved out of the heating air duct 30 by driving the sliding plate to move relative to the support framework 32 by the driving mechanism 42, so that the temperature control member 7 can be conveniently repaired, and the repair efficiency is improved.

[0089] It should be noted that, in actual application, the sliding plate 41 can be arranged on one of the support plates and slidably connected with the support plate, or the sliding plate 41 can be arranged between the two support plates and slidably connected with the two support plates, and the like, and the adjustment and change of the specific mounting position of the sliding plate 41 on the support framework 32 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0090] Preferably, as shown in Figure 8 the sliding plate 41 of the present application is arranged between the two support plates, and the sliding plate 41 is provided with sliding blocks 411 on both sides, and the two support plates are provided with sliding grooves 321 corresponding to the sliding blocks 411, and the sliding blocks 411 slide along the sliding grooves 321 to achieve the sliding connection between the sliding plate 41 and the support plates.

[0091] Through the arrangement, the sliding plate 41 can stably slide on the support framework 32, and the mounting stability of the sliding plate 41 on the support framework 32 is improved.

[0092] It should be noted that, in actual application, the sliding blocks 411 are not necessarily arranged on the sliding plate 41, and the sliding grooves 321 are arranged on the support framework 32 to achieve the sliding connection between the sliding plate 41 and the support framework 32, for example, the sliding blocks 411 can be arranged on the support framework 32, and the sliding grooves 321 can be arranged on the sliding plate 41, and the sliding blocks 411 slide in the sliding grooves 321 to achieve the sliding connection between the sliding plate 41 and the support framework 32, and the like, and the flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the sliding blocks 411 are arranged on the sliding plate 41, and the sliding grooves 321 are arranged on the support framework 32 to achieve the sliding connection between the sliding plate 41 and the support framework 32.

[0093] It should be noted that in actual applications, the driving mechanism 42 can be set as a motor, or the driving mechanism 42 can be set as an electromagnetic component, the sliding plate 41 has magnetism, and the electromagnetic component can generate magnetic attraction force to the sliding plate 41 to move the sliding plate 41 out of the heating air duct 30 when the electromagnetic component is powered on, and the like, and the adjustment and change of the specific setting type of the driving mechanism 42 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0094] Preferably, as shown in the drawings, the driving mechanism 42 of the present application comprises an electromagnetic component 421, the sliding plate 41 has magnetism, and the electromagnetic component 421 can generate magnetic attraction force to the sliding plate 41 to move the sliding plate 41 out of the heating air duct 30 when the electromagnetic component 421 is powered on, and the driving mechanism 42 further comprises a resilient reset component 422 to move the sliding plate 41 back into the heating air duct 30 after the electromagnetic component 421 is powered off. Figure 9

[0095] Through such a setting, compared with the form of setting the driving mechanism 42 as a motor, setting the driving mechanism 42 as an electromagnetic component 421 can avoid using a motor, thereby reducing the cost of the driving mechanism 42, and further reducing the cost of the drying air duct assembly, and at the same time, the structure of the driving mechanism 42 can be made more simple, and the simplicity of the drying air duct assembly can be improved.

[0096] It should be noted that in actual applications, the resilient reset component 422 can be set as a spring, or the resilient reset component can be set as an elastic rope, and the like, and the adjustment and change of the specific setting type of the resilient reset component 422 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0097] Preferably, the resilient reset component 422 is set as a spring.

[0098] It should be noted that in actual applications, the sliding plate 41 can be set as a magnetic material, or a magnetic piece can be arranged on the side of the sliding plate 41 corresponding to the electromagnetic component 421, and the like, and such flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0099] Preferably, a magnetic piece is arranged on the side of the sliding plate 41 corresponding to the electromagnetic component 421.

[0100] Preferably, as shown in the drawings, the driving mechanism 42 of the present application comprises an electromagnetic component 421, the sliding plate 41 has magnetism, and the electromagnetic component 421 can generate magnetic attraction force to the sliding plate 41 to move the sliding plate 41 out of the heating air duct 30 when the electromagnetic component 421 is powered on, and the driving mechanism 42 further comprises a resilient reset component 422 to move the sliding plate 41 back into the heating air duct 30 after the electromagnetic component 421 is powered off. Figure 9 ​As shown, the drying duct assembly of the present invention further includes a first take-up member 431 and a second take-up member 432. The first take-up member 431 and the second take-up member 432 are respectively located at both ends of the temperature control member 7. When the slide plate 41 moves out of the heating duct 30, the power line 6 in the first take-up member 431 is released so that the slide plate 41 moves toward the second take-up member 432, and the power line 6 between the slide plate 41 and the second take-up member 432 is retracted into the first take-up member 431. When the slide plate 41 moves back into the heating duct 30, the power line 6 in the second take-up member 432 is released so that the slide plate 41 moves toward the first take-up member 431, and the power line 6 between the slide plate 41 and the first take-up member 431 is retracted into the first take-up member 431.

[0101] With this configuration, when the slide plate 41 is moved out of or back into the heating air duct 30, the power cord 6 can be retracted into the first winding member 431 or the second winding member 432, avoiding the accumulation of the power cord 6 and causing tangling, and further facilitating the maintenance of the temperature control member 7.

[0102] It should be noted that, in practical applications, those skilled in the art can configure the first take-up member 431 and the second take-up member 432 as an automatic take-up reel, or they can configure the first take-up member 431 and the second take-up member 432 as an automatic take-up device, etc. Such adjustments and changes to the specific configuration types of the first take-up member 431 and the second take-up member 432 do not deviate from the principles and scope of the present invention, and should all be included within the protection scope of the present invention.

[0103] Preferably, both the first take-up member 431 and the second take-up member 432 are configured as automatic take-up devices.

[0104] The following is combined with Figure 10 The specific structure of the automatic take-up device of the present invention will be introduced by taking the first take-up component 431 as an example.

[0105] Preferably, such as Figure 10 As shown, the first take-up component 431 includes a take-up body 4311, a take-up shaft 4312, and a torsion spring 4313. The take-up shaft 4312 is mounted on the take-up body 4311 and rotatably connected to it. The torsion spring 4313 is sleeved on the outside of the take-up shaft 4312. One end of the torsion spring 4313 is fixed to the take-up shaft 4312, and the other end is fixed to the take-up body 4311. The take-up shaft 4312 is provided with a first limiting part 43121 and a second limiting part 43122. The power cord 6 is wound between the first limiting part 43121 and the second limiting part 43122 of the take-up shaft 4312.

[0106] When the drying air duct assembly is in normal use, the sliding plate 41 is located in the heating air duct 30, at this time, the torsion spring on the first take-up member 431 is in a relaxed state, and the torsion spring on the second take-up member 432 is in a tension state, when the temperature detection member 7 needs to be maintained, the driving mechanism 42 drives the sliding plate 41 to move towards the direction of the second take-up member 432, the power line 6 on the first take-up member 431 is released, accordingly, the torsion spring of the first take-up member 431 gradually changes from the relaxed state to the tension state, and the torsion spring of the second take-up member 432 gradually changes from the tension state to the relaxed state, the power line 6 between the sliding plate 41 and the second take-up member 432 is taken into the second take-up member 432.

[0107] When the temperature detection member 7 is maintained, the driving mechanism 42 drives the sliding plate 41 to move towards the direction of the first take-up member 431, the power line 6 on the second take-up member 432 is released, accordingly, the torsion spring of the second take-up member 432 changes from the relaxed state to the tension state, with the movement of the sliding plate 41, the power line 6 between the first take-up member 431 and the sliding plate 41 is taken into the first take-up member 431, accordingly, the torsion spring of the first take-up member 431 changes from the tension state to the relaxed state; during the whole process, the power line 6 will not be relaxed, avoiding winding and improving the maintenance efficiency.

[0108] Next, refer to 7, Figure 7 is Figure 3 is a local enlarged view of C.

[0109] Preferably, as Figure 7 shown, the drying air duct assembly of the present application further comprises a non-return member 5 arranged at the air outlet 102, the non-return member 5 is arranged to be able to open the air outlet 102 to make the airflow in the heating air duct 30 flow out from the air outlet 102, and the non-return member 5 is further arranged to be able to close the air outlet 102 to prevent sundries outside the shell 1 from entering into the shell 1 through the air outlet 102.

[0110] Through such an arrangement, on the one hand, when the drying air duct assembly is in a non-working state, it can prevent laundry foam or laundry lint in the laundry treatment equipment from entering into the drying air duct assembly through the air outlet 102, thereby avoiding clogging the drying air duct assembly; on the other hand, when the drying air duct assembly is in a working state, it can open the air outlet 102 to make the airflow in the heating air duct 30 flow out from the air outlet 102, facilitating the delivery of hot air, thereby avoiding affecting the normal use of the drying air duct assembly.

[0111] It should be noted that in actual application, the skilled in the art can set the check member 5 as a motor and a valve plate, the valve plate can close the air outlet 102 when the drying air duct assembly is in a non-working state, the valve plate is driven by the motor to move relative to the shell 1 to open the air outlet 102 when the drying air duct assembly is in a working state, or the check member 5 can also be set as a check valve, wherein the check valve is pivotally connected with the shell 1, the check valve abuts against the shell 1 to close the air outlet 102 when the drying air duct assembly is in a non-working state, the airflow in the shell 1 can push the check valve to rotate relative to the shell 1 and open the air outlet 102 when the drying air duct assembly is in a working state, thereby facilitating the delivery of hot air, and the like, the adjustment and change of the specific setting type of the check member 5 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0112] Preferably, as shown in the drawings, the check member 5 of the present application comprises a sealing base plate 51 and a valve plate 52, the number of the sealing base plate 51 and the valve plate 52 is multiple and the sealing base plate 51 and the valve plate 52 are sequentially and spacedly distributed, the sealing base plate 51 is installed on the shell 1 to divide the air outlet 102 into multiple air outlet channels, the valve plate 52 is pivotally connected with the shell 1 through a rotating shaft 53, the valve plate 52 is arranged to abut against the sealing base plate 51 to close the air outlet channel when it is in a first working state, and the valve plate 52 is arranged to move away from the sealing base plate 51 to open the air outlet channel when it is in a second working state. Figure 5

[0113] Through such setting, compared with the form of setting the check member 5 as a motor and a valve plate, setting the check member 5 as the sealing base plate 51 and the valve plate 52 can avoid using the motor, thereby reducing the cost of the check member 5 and further reducing the cost of the drying air duct assembly, at the same time, it can also make the structure of the drying air duct assembly simpler and the weight lighter, on the other hand, by setting multiple sealing base plates 51 and multiple valve plates 52, the hot air blown out from the air outlet 102 can be divided into multiple air flows, thereby making the hot air more uniformly blow into the drying chamber of the clothes treatment equipment and improving the drying effect.

[0114] ​It should be noted that in actual application, the number of the sealing base plate 51 and the valve plate 52 is not limited to be multiple, for example, the number of the sealing base plate 51 can be set to two, and the number of the valve plate 52 is set to one, wherein the two sealing base plates 51 are located on the two sides of the valve plate 52, or the number of the sealing base plate 51 can be set to three, and the number of the valve plate 52 is set to two, wherein the sealing base plate 51 and the valve plate 52 are distributed in sequence, and the like, the adjustment and change of the specific number of the sealing base plate 51 and the valve plate 52 do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application. Of course, preferably, the number of the sealing base plate 51 and the valve plate 52 is set to multiple.

[0115] It should be further noted that in actual application, the sealing base plate 51 can be set to a material with sealing effect, for example, rubber material, or a sealing gasket can be provided on the sealing base plate 51, which can realize the sealing between the valve plate 52 and the sealing base plate 51 when the valve plate 52 abuts on the sealing base plate 51, and the like, the flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0116] Preferably, the sealing base plate 51 is set to rubber material.

[0117] It should be noted that in actual application, the fixing structure can be provided on the drying air duct assembly, and the drying air duct assembly is installed on the clothes treatment equipment through the fixing structure, or the clamping structure can be provided on the drying air duct assembly, and the drying air duct assembly is clamped with the clothes treatment equipment through the clamping structure to install the drying air duct assembly on the clothes treatment equipment, and the like, the adjustment and change of the specific installation mode of the drying air duct assembly on the clothes treatment equipment do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0118] Preferably, the drying air duct assembly of the present application further comprises a fixing structure provided on the shell 1, and the drying air duct assembly is installed on the clothes treatment equipment through the fixing structure.

[0119] Through such a setting, the installation and disassembly of the drying air duct assembly on the clothes treatment equipment are facilitated, and the installation firmness of the drying air duct assembly on the clothes treatment equipment can be improved.

[0120] It should be noted that in actual applications, the fixing structure can be set as a connecting lug, and the drying air duct assembly is installed on the clothes treatment equipment by screwing a bolt through the threaded hole on the connecting lug, or the fixing structure can be set as a fixing column, and the drying air duct assembly is installed on the clothes treatment equipment by screwing a bolt through the threaded hole on the fixing column, etc., and such flexible adjustment and change do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0121] Exemplarily, as shown in Figures 1 to 3 、 Figure 5 、 Figure 6 , the fixing structure of the present application is a fixing column 16, a threaded hole 161 is arranged in the fixing column 16, and the fixing column 16 is used to install the drying air duct assembly on the clothes treatment equipment.

[0122] It should be noted that in actual applications, the clothes treatment equipment can be set as a washer-dryer, or can be set as a clothes dryer, or can be set as a clothes care machine, etc., and such adjustment and change of the specific setting type of the clothes treatment equipment do not deviate from the principles and scope of the present application, and should be included in the protection scope of the present application.

[0123] Exemplarily, the clothes treatment equipment is set as a washer-dryer.

[0124] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the present application, and the technical solutions after such changes or replacements will fall within the protection scope of the present application.

Claims

1. A drying air duct assembly, characterized in that The drying air duct assembly comprises: a housing having an air inlet and an air outlet; a fan arranged to introduce an airflow outside the housing into the housing through the air inlet; a heating member arranged in the housing between the air inlet and the air outlet, the heating member having a heating air duct, an inlet end of the heating air duct being in communication with the air inlet so that the airflow entering the housing through the air inlet flows into the heating air duct, the heating member comprising a heating body capable of heating the airflow flowing through the heating air duct, an outlet end of the heating air duct being in communication with the air outlet so that the hot airflow in the heating air duct flows out of the air outlet; a temperature control member arranged in the heating air duct, the temperature control member being connected in series with the heating body of the heating member to form a communication loop, the temperature control member being used to detect the temperature in the heating air duct and disconnect the loop when the temperature in the heating air duct is greater than a set temperature; the heating member further comprises a support framework; the drying air duct assembly further comprises a sliding plate and a driving mechanism, the temperature control member being mounted on the sliding plate, the driving mechanism being arranged to drive the sliding plate to move relative to the support framework to move the sliding plate out of the heating air duct.

2. The drying air duct assembly of claim 1, wherein, The temperature control member comprises a first over-temperature protection switch connected in series with the heating body, the first over-temperature protection switch being arranged to disconnect the loop when the temperature in the heating air duct exceeds a first set temperature, and the first over-temperature protection switch being further arranged to make the loop communicate when the temperature in the heating air duct is lower than the first set temperature.

3. The drying air duct assembly of claim 2, wherein, The temperature control member further comprises a second over-temperature protection switch, the second over-temperature protection switch and the first over-temperature protection switch being connected in series with the heating body, the second over-temperature protection switch being arranged to disconnect the loop when the temperature in the heating air duct exceeds a second set temperature, and not making the loop communicate when the temperature in the heating air duct is lower than the second set temperature, wherein the first set temperature is lower than the second set temperature.

4. The drying air duct assembly of claim 1, wherein, The heating member further comprises an insulating shell, the support framework and the heating body being arranged in the insulating shell, the heating air duct being formed in the insulating shell, the heating body being a superconducting heating wire, the superconducting heating wire being wound outside the support framework.

5. The drying air duct assembly of claim 1, wherein, The driving mechanism comprises an electromagnetic member, the sliding plate being magnetic, the electromagnetic member being capable of generating a magnetic attraction force to move the sliding plate out of the heating air duct when the electromagnetic member is energized, the driving mechanism further comprising an elastic return member so that the sliding plate moves back into the heating air duct after the electromagnetic member is de-energized.

6. The drying air duct assembly of claim 1, wherein, The drying air duct assembly further comprises a first wire winding member and a second wire winding member, the first wire winding member and the second wire winding member are respectively located at two ends of the temperature control member, in the case that the slide plate moves out of the heating air duct, the power cord in the first wire winding member is unwound so that the slide plate moves towards the second wire winding member, the power cord between the slide plate and the second wire winding member is wound into the second wire winding member, in the case that the slide plate moves back into the heating air duct, the power cord in the second wire winding member is unwound so that the slide plate moves towards the first wire winding member, the power cord between the slide plate and the first wire winding member is wound into the first wire winding member.

7. The drying air duct assembly of any one of claims 1 to 6, wherein, The drying air duct assembly further comprises a reverse prevention member arranged at the air outlet, the reverse prevention member is arranged to be capable of opening the air outlet to enable the airflow in the heating air duct to flow out of the air outlet, the reverse prevention member is further arranged to be capable of closing the air outlet to prevent sundries outside the housing from entering into the housing through the air outlet.

8. The drying air duct assembly of claim 7, wherein, The reverse prevention member comprises sealing base plates and valve plates, the number of the sealing base plates and the valve plates is both plural, and the sealing base plates and the valve plates are sequentially and spacedly distributed, the sealing base plates are mounted on the housing to divide the air outlet into a plurality of air outlet channels, the valve plates are pivotally connected with the housing, the valve plates are arranged to be capable of abutting against the sealing base plates to close the air outlet channels when the valve plates are in a first working state, and the valve plates are arranged to be capable of moving away from the sealing base plates to open the air outlet channels when the valve plates are in a second working state. 9.A laundry treating apparatus, characterized by, The laundry treating apparatus comprises the drying air duct assembly according to any one of claims 1 to 8.

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