Drying equipment for washing machine

Abstract

The invention discloses drying equipment for a washing machine, and belongs to the technical field of normal-temperature dehumidification. The washing machine comprises a draught fan and a drying device, the drying device comprises the draught fan, and an air inlet pipe of the draught fan is communicated with the upper portion of the front washing drum; the drying device is arranged on an exhaust pipe at the upper part of the rear washing cylinder, a drying cavity is formed in the drying device, one end of the drying cavity is communicated with the rear washing cylinder through the exhaust pipe, and the other end of the drying cavity is communicated with an air outlet pipe of the fan so as to realize drying air in the front washing cylinder and the inner washing cylinder; the washing rear cylinder and the drying device circulate; and a normal-temperature dehumidifier is arranged in the drying cavity so that humid gas passing through the normal-temperature dehumidifier can be dried at normal temperature. According to the drying equipment for the washing machine, clothes in the washing machine can be dehumidified at normal temperature, damage to the clothes due to high temperature is avoided, the problems of clothes deformation, color fading and the like are reduced, and the service life of the clothes is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of normal temperature dehumidification, and in particular to a drying device for a washing machine. Background Art

[0002] Washing machines and dryers on the market are mainly divided into heat pump type and condensing type. Condensing washing machines and dryers generally dry clothes by passing cold water into the condensing air duct, exchanging heat with the hot and humid steam to condense the water vapor into water droplets and discharge them outside the washing machine. Heat pump washing machines condense the hot and humid steam into water droplets through heat exchange between the evaporator and condenser and discharge them outside the washing machine.

[0003] These two types of washing and drying machines have different principles for drying clothes, but both aim to heat up in different ways to condense the hot and humid steam into water droplets, thereby achieving the purpose of drying clothes. However, no matter which method is used, the temperature in the drum needs to be raised during the drying stage, which may cause certain damage to the clothing fibers. Especially for condensing dryers, the maximum temperature in the drum is 80-90℃ during drying, and high temperature will damage clothing fibers, especially high-end fabrics such as silk and wool. The deformation damage caused by high temperature to clothing is irreversible.

[0004] Therefore need a kind of novel washing and drying machine to improve dehumidification effect. Summary of the invention

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a drying device for a washing machine, which can dehumidify the clothes in the washing machine at room temperature and prevent the clothes from being damaged.

[0006] In the first aspect, the embodiment of the present invention discloses a drying device for a washing machine. The washing machine comprises an inner washing drum and an outer washing drum, the outer washing drum comprises a front washing drum and a rear washing drum, and the drying device comprises: a fan, the air inlet pipe of the fan is connected to the upper part of the front washing drum; a drying device, the drying device is arranged on the exhaust pipe at the upper part of the rear washing drum, a drying chamber is provided therein, one end of the drying chamber is connected to the rear washing drum through the exhaust pipe, and the other end is connected to the exhaust pipe of the fan to realize the circulation of dry air in the front washing drum, the inner washing drum, the rear washing drum and the drying device; wherein a normal temperature dehumidifier is arranged in the drying chamber to dry the humid air passing therethrough at normal temperature.

[0007] Furthermore, the drying device further comprises: a housing and a rotating support mechanism. A vent hole is provided on one side of the housing to connect the exhaust pipe and the drying chamber through the vent hole; the rotating support mechanism is set up in the drying chamber to support the normal temperature dehumidifier.

[0008] Further, the rotating support mechanism is a rotating support frame, and the rotating support frame includes a first support frame, a second support frame and a rotating shaft connected between the first support frame and the second support frame, wherein the rotating shaft separates the first support frame and the second support frame.

[0009] Furthermore, the drying device further comprises: a gauze and an outer cover. The gauze is arranged on the rotating support frame and is used to wrap the normal temperature dehumidifier; the outer cover wraps the rotating support frame and the gauze to form a placement space for the normal temperature dehumidifier.

[0010] Furthermore, the drying device further comprises: a power device, which is disposed on one side of the rotating shaft and is used to drive the entire rotating support frame to rotate by rotating the rotating shaft.

[0011] Furthermore, the normal temperature dehumidifier occupies 60%-80% of the volume of the drying chamber.

[0012] Furthermore, the drying device further comprises: a heating plate, which is arranged at the bottom of the drying chamber and is used to further dehumidify the normal temperature dehumidifier.

[0013] Furthermore, the heating plate is a semiconductor heating plate, and the semiconductor heating plate adopts a mosquito-repellent-coil type spiral electric heating coil to improve heating efficiency.

[0014] Furthermore, the drying device further comprises: a humidity sensor, which is arranged in the drying chamber and is used to measure the humidity of the normal temperature dehumidifier.

[0015] Furthermore, the drying device also includes a normal temperature dehumidifier drain pipe, which connects the bottom of the drying chamber with the drain port of the washing machine to drain the moisture in the drying chamber.

[0016] Furthermore, the normal temperature dehumidifier is zeolite.

[0017] By adopting the above technical solution, the present invention has at least the following beneficial effects: The drying device provided by the present invention uses a normal temperature dehumidifier such as a new material zeolite and adopts simple control logic to achieve low-temperature drying of clothes, thereby achieving efficient and energy-saving clothing drying, avoiding damage to clothes caused by high temperature, reducing problems such as clothing deformation and fading, and extending the service life of clothes.

[0018] The present invention does not need to continuously pass a large amount of condensed water during the drying stage, thus avoiding the waste of water resources, being more environmentally friendly and energy-saving. In addition, the evaporator and condenser are not needed, thus simplifying the machine structure, reducing the cost of the whole machine, and improving the energy efficiency ratio.

[0019] The invention eliminates the rear air duct, saves deep space, shortens the depth of the whole machine, and can achieve ultra-thin size, suitable for various home environments. The thin size design makes the machine more beautiful, occupies less space, and is convenient for users to install and use.

[0020] Compared with placing zeolite in the air duct space, the present invention utilizes the large area of ​​the washing drum to dehumidify, improves the drying efficiency, and makes the control logic simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A side view schematic diagram of a washing machine in which a drying device disclosed in an embodiment of the present invention is located; Figure 2 A schematic top view of a washing machine in which a drying device according to an embodiment of the present invention is located; Figure 3 A schematic diagram of a drain pipe of a washing machine disclosed in an embodiment of the present invention; Figure 4 It is a cross-sectional schematic diagram of a washing machine in which a drying device disclosed in an embodiment of the present invention is located; Figure 5 It is an enlarged schematic diagram of a drying device disclosed in one embodiment of the present invention; Figure 6 It is an enlarged schematic diagram of a support frame and a power device of a drying device disclosed in one embodiment of the present invention; Figure 7 A side view schematic diagram of a support frame and a power device disclosed in an embodiment of the present invention; Figure 8 It is an enlarged schematic diagram of a heating plate disclosed in one embodiment of the present invention.

[0023] In the figure: 1- fan; 11- air inlet pipe; 12- air outlet pipe; 2- Wash the front drum; 3-washing rear drum; 31-exhaust pipe; 4-drying device; 41-drying chamber; 42-normal temperature dehumidifier; 43-accommodating shell; 44-rotating support mechanism; 441-supporting foot; 442-first support frame; 443-second support frame; 444-rotating shaft; 45-gauze; 46-outer cover; 47-power device; 48-heater; 481-electric heating channel; 482-electric heating branch channel; 49-normal temperature dehumidifier drain pipe; 5- Detergent box; 6-Washing machine drain pipe; 7. Clothing. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0025] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0026] like Figure 1-Figure 8 As shown, an embodiment of the present invention discloses a drying device for a washing machine. The washing machine comprises a washing inner drum and a washing outer drum, the washing outer drum comprises a washing front drum 2 and a washing rear drum 3, and the drying device comprises a fan 1, the air inlet pipe of the fan 1 is connected to the upper part of the washing front drum 2; a drying device 4, the drying device 4 is arranged on the exhaust pipe 31 at the upper part of the washing rear drum 3, and a drying chamber 41 is opened therein, one end of the drying chamber 41 is connected to the washing rear drum 3 through the exhaust pipe 31, and the other end is connected to the exhaust pipe 12 of the fan 1 to realize the circulation of dry air in the washing front drum 2, the washing inner drum, the washing rear drum 3 and the drying device 4; wherein, a normal temperature dehumidifier 42 is also arranged in the drying chamber 41 to dry the humid gas passing therethrough at normal temperature.

[0027] Specifically, the washing drum of the existing washing machine is divided into an inner washing drum and an outer washing drum, wherein the inner washing drum has a clothes accommodating cavity for washing clothes. The outer washing drum further includes a front washing drum 2 and a rear washing drum 3, wherein the front washing drum 2 and the rear washing drum 3 can be divided into two parts for the convenience of description, wherein the part close to the air inlet of the fan 1 is the front washing drum 2, and the other part is the rear washing drum 3. The outer washing drum can also be divided into two parts by a grid, wherein the front washing drum 2 is connected to the air inlet of the fan 1, and the other part is the rear washing drum 3. Among them, the air inlet pipe of the fan 1 is connected to the upper part of the front washing drum 2. The drying device 4 is arranged on the exhaust pipe 31 at the upper part of the rear washing drum 3, that is, on the exhaust pipe 31 at the upper part of the rear washing drum 3. A detergent box 5 is also arranged on the upper part of the front washing drum 2 and the rear washing drum 3 to provide detergent for the washing machine. The front washing drum 2 is a steel drum that can be seen when the door of the washing machine is opened, and the rear washing drum 3 is a plastic part that wraps the front washing drum 2. The front washing drum 2 and the rear washing drum 3 are fixed by screws, so that the gap between the front washing drum 2 and the rear washing drum 3 can store washing water. When draining, the drainage pump installed below the rear washing drum 3 is turned on to drain. The bottoms of the front washing drum 2 and the rear washing drum 3 are connected. In this application, the fan 1 has an air inlet pipe 11 and an air outlet pipe 12. Among them, the air inlet pipe 11 is connected to the air inlet at the top of the front washing drum 2. The gas enters the front washing drum 2 through the air inlet and flows from the bottom to the rear washing drum 3, and then flows from the bottom of the rear washing drum 3 to the top and enters the drying device 4 for drying. The dried gas then enters the fan 1 through the air outlet pipe 12 of the fan 1 for a new round of circulation. The drying device can dry the clothes 7 at room temperature without heating, and makes full use of the large area of ​​the rear washing drum 3 for dehumidification, so the dehumidification effect is better.

[0028] Preferably, the normal temperature dehumidifier 42 may be zeolite.

[0029] Among them, zeolite is a mature new material. Zeolite has the characteristics of high hygroscopicity, long-term and repeated use, and repeated drying after repeated moisture absorption. Zeolite is a natural mineral with a porous structure, which contains a large number of micropores and mesopores. These pores can absorb a large amount of water, so it has a high hygroscopic capacity. In addition, zeolite also has good thermal stability and chemical stability, can maintain structural stability at high temperatures, will not decompose or deteriorate, and can be repeatedly used for a long time. With the help of the super hygroscopic performance of zeolite, clothes 7 are dried and judged dry at room temperature. Drying at room temperature can avoid damage to clothes 7 caused by high temperature and reduce problems such as deformation and fading of clothes 7.

[0030] like Figures 1 to 7As shown, in a preferred embodiment of the present invention, the drying device 4 also includes: a accommodating shell 43 and a rotating support mechanism 44, and a vent hole is opened on one side of the accommodating shell 43 to connect the exhaust pipe 31 and the drying chamber 41 through the vent hole; the rotating support mechanism 44 is mounted in the drying chamber 41 to support the normal temperature dehumidifier 42.

[0031] Specifically, the housing 43 can be used to provide a housing space for the normal temperature dehumidifier 42. The housing space is, for example, a drying chamber 41. In order to facilitate communication with the exhaust pipe 31, the housing 43 has a vent hole on the side contacting the exhaust pipe 31, and the exhaust pipe 31 and the drying chamber 41 are connected through the vent hole.

[0032] In order to increase the working area of ​​the normal temperature dehumidifier 42, it is necessary to erect it to increase the contact area with moisture. The rotating support mechanism 44 is designed for this purpose.

[0033] Preferably, the rotating support mechanism 44 may be installed with three supporting feet 441 at the bottom to suspend it in the drying chamber 41 , thereby providing more sufficient space for the normal temperature dehumidifier 42 .

[0034] like Figures 5 to 7 As shown, in a preferred embodiment of the present invention, the rotating support mechanism 44 includes a first support frame 442, a second support frame 443 and a rotating shaft 444 connected between the first support frame 442 and the second support frame 443, wherein the rotating shaft 444 separates the first support frame 442 and the second support frame 443.

[0035] Specifically, the first support frame 442 and the second support frame 443 are both frame-shaped structures, which can be formed by welding stainless steel pipes. The first support frame 442 can preferably be a circular frame fixed to the rotating shaft 444 by a support rod. The support rods are symmetrically arranged along the circular frame. The number of support rods is based on the ability to provide a good supporting effect, for example, it can be 6. The shape of the second support frame 443 can be the same as or different from the first support frame 442. The first support frame 442 and the second support frame 443 can be symmetrically arranged with the rotating shaft 444 as the rotation center. Being separated by the rotating shaft 444 can provide sufficient placement space for the normal temperature dehumidifier 42, such as zeolite, to improve the dehumidification effect.

[0036] like Figures 5 to 7 As shown, in a preferred embodiment of the present invention, the drying device 4 also includes: a gauze 45 and an outer cover 46, wherein the gauze 45 is arranged on the rotating support mechanism 44 and is used to wrap the normal temperature dehumidifier 42; and the outer cover 46 wraps the rotating support mechanism 44 and the gauze 45 to form a placement space for the normal temperature dehumidifier 42.

[0037] Specifically, the gauze 45 is supported by the support rod to support the space for accommodating it. Since the gauze 45 is flexible and cannot be directly fixed on the washing rear drum 3, an outer cover 46 is added outside the gauze 45 and the support rod. The outer cover 46 is preferably a plastic outer cover, for example, nylon material is used so that it has good strength and high hardness. The plastic outer cover is fixed to the exhaust port above the outer drum bottom of the washing rear drum 3 by screws using three brackets.

[0038] like Figures 5 to 7 As shown, in a preferred embodiment of the present invention, the drying device 4 further includes: a power device 47, which is arranged on one side of the rotating shaft 444 and is used to drive the entire rotating support mechanism 44 to rotate by rotating the rotating shaft 444.

[0039] Specifically, the power device 47 is preferably a small asynchronous motor, which can drive the rotating shaft 444 to rotate. The normal temperature dehumidifier 42, such as zeolite, is wrapped in a gauze 45 and placed in the space formed by the support frame 44. Under the action of centrifugal force, the water is removed and dried. The water drops roll down the inner wall of the drying chamber 41, enter the inner and outer drum interlayer from the bottom of the washing drum 3, and are discharged from the washing machine drain pipe 6.

[0040] In a preferred embodiment of the present invention, the normal temperature dehumidifier 42 occupies 60%-80% of the volume of the drying chamber 41 .

[0041] Specifically, in order to improve the dehumidification effect, the larger the amount of zeolite in the normal temperature dehumidifier 42, the better. However, due to the limited space of the drying chamber 41, too large a zeolite will lead to a reduced contact area and affect the dehumidification effect. Therefore, it is preferred that the zeolite accounts for 60%-80% of the volume of the drying chamber 41.

[0042] like Figure 2 and Figure 8 As shown, in a preferred embodiment of the present invention, the drying device 4 further includes: a heater 48, which is a semiconductor heating disk and is arranged at the bottom of the drying chamber 41 for further dehumidifying the normal temperature dehumidifier 42.

[0043] Specifically, in order to further improve the dryness of zeolite, its characteristics are utilized: after absorbing moisture, zeolite can be dried by heating to restore its moisture absorption capacity. When the zeolite after absorbing moisture is heated to a certain temperature, the water molecules in the pores will evaporate and escape. Therefore, the semiconductor heating plate at the bottom of the drying chamber 41 starts to heat up rapidly, which can discharge the small molecules of water between the zeolite molecules and accelerate the drying of the zeolite. The dried zeolite has a very high moisture absorption capacity again, and the clothes 7 continue to be dried. Through heating regeneration, the zeolite can restore its moisture absorption capacity, realize long-term and repeated use, and reduce the cost of use.

[0044] Since the semiconductor heating plate is not in direct contact with the inner and outer walls of the drum, and the size of the exhaust port (connected to the exhaust pipe) is very small relative to the bottom area of ​​the entire rear drum 3, the temperature of the clothes 7 in the drum is minimal when the semiconductor heating plate is heated, and the clothes 7 in the drum can still maintain a relatively low temperature, achieving room temperature drying without damaging the fibers of the clothes 7. like Figure 2 and Figure 8 As shown, in a preferred embodiment of the present invention, the drying device 4 further includes: a heater 48, which is a mosquito-repellent-repellent-coil type spiral electric heating coil and is arranged at the bottom of the drying chamber 41 for further dehumidifying the normal temperature dehumidifier 42.

[0045] Specifically, the mosquito-repellent coil type spiral electric heating coil is used as an alternative implementation of the semiconductor heating disk. Compared with the semiconductor heating disk, it heats up faster and is made into a "mosquito-repellent coil" shape, such as a spirally wrapped ascending shape, which can make full use of the space at the bottom of the cavity and improve the heating efficiency. Since the electric heating temperature is higher than that of the semiconductor heating disk, the drying chamber 41 needs to be replaced with a heat-resistant metal material such as cast iron. The mosquito-repellent coil type spiral electric heating coil preferably may include an electric heating channel 481 and an electric heating branch channel 482. The electric heating channel 481 is a concentric arrangement of multiple circles, and the number of circles is not specifically limited to achieve the best effect. Among them, there can be multiple electric heating branch channels 482, and they are evenly distributed on the periphery of the mosquito-repellent coil type spiral electric heating coil.

[0046] Therefore, the present invention realizes the use of centrifugal force drying + heating mechanism to dry the zeolite, which greatly improves the drying efficiency of the zeolite.

[0047] In a preferred embodiment of the present invention, the drying device 4 further includes: a humidity sensor, which is arranged in the drying chamber 41 and is used to measure the humidity of the normal temperature dehumidifier 42 .

[0048] Specifically, the normal temperature dehumidifier 42 can be, for example, zeolite. When the washing machine is running for a long time, the zeolite absorbs enough moisture and its absorption capacity decreases. A humidity sensor is installed on the bracket of the drying chamber 41 to detect the dryness of the zeolite. The humidity sensor is inserted into the zeolite to detect the humidity of the zeolite in real time. When the detection value exceeds the set value, it means that the drying capacity of the zeolite has dropped to the minimum. At this time, the zeolite needs to be dried, such as spin-dried, to maintain its dehumidification efficiency.

[0049] like Figure 1 , Figure 3 to Figure 4 As shown, in a preferred embodiment of the present invention, the drying device 4 further includes a normal temperature dehumidifier drain pipe 49 , which connects the bottom of the drying chamber 41 with the drain port of the washing machine to drain the moisture in the drying chamber 41 .

[0050] Specifically, the normal temperature dehumidifier drain pipe 49 is a rubber tube, which can allow the moisture in the drying chamber 41 to enter the inner and outer drum interlayer from the bottom of the washing drum 3 and be discharged from the washing machine drain pipe 6.

[0051] For the whole scheme, the air inlet pipe 11 of the fan 1 passes the gas into the top of the pre-washing drum 2, and flows to the bottom of the pre-washing drum 2, and then flows from the bottom of the pre-washing drum 2 to the bottom of the post-washing drum 3, and flows to the top along the inner cavity of the post-washing drum 3, and then enters the drying device 4 for drying by zeolite, and the dried gas then enters the fan 1 again through the air outlet pipe 12 of the fan 1 for a new round of circulation. After multiple cycles, the zeolite absorbs water and its moisture absorption capacity decreases compared with the drying stage. In order to ensure that the drying energy efficiency is maintained at a high level. It is necessary to dry the zeolite that has absorbed water. Drying method: The drying chamber 41 has a humidity sensor. After running for a period of time, the zeolite absorbs a large amount of moisture and the dehumidification capacity decreases. When the humidity sensor detects that the humidity of the zeolite reaches a certain value, it means that the zeolite needs to be dried. Drying method: The motor connected to the rotating shaft is started, and the centrifugal force removes the adsorbed water and rolls down along the inner wall of the circular cavity. The heater 48 at the rear heats up rapidly. Through heating and regeneration, the zeolite can restore its moisture absorption capacity, realize long-term and repeated use, and reduce the cost of use. The water droplets thrown to the inner wall by centrifugal force accumulate at the bottom of the cavity, flow along the water pipe to the bottom of the rear cylinder, and are discharged from the drain pipe. Until the humidity sensor detects that the humidity meets the standard, the fan 1 starts, and the zeolite continues to absorb moisture and dry.

[0052] The drying device for washing machines provided by the present invention changes the high-temperature drying technology of existing condensing and heat pump washing and drying machines. The technology of low-temperature drying and nursing clothes 7 is used to achieve efficient and energy-saving drying of clothes 7 through relatively simple control logic and new materials, such as zeolite. This technology can not only achieve the effect of low-temperature drying, but also effectively protect clothes 7, avoid damage to clothes 7 caused by high temperature, reduce deformation, fading and other problems of clothes 7, and extend the service life of clothes 7. And in conjunction with the humidity sensor, it can quickly judge the dryness of clothes 7.

[0053] The present invention does not need to continuously introduce a large amount of condensed water during the drying stage, thus avoiding the waste of water resources, being more environmentally friendly and energy-saving. In addition, the evaporator and condenser are not needed, thus simplifying the machine structure, reducing the cost of the whole machine, and improving the energy efficiency ratio.

[0054] The invention eliminates the rear air duct, saves deep space, shortens the depth of the whole machine, and can achieve ultra-thin size, suitable for various home environments. The thin size design makes the machine more beautiful, occupies less space, and is convenient for users to install and use.

[0055] Compared with placing zeolite in the air duct space, the present invention utilizes the large area of ​​the washing drum 3 for dehumidification, improves the drying efficiency, and makes the control logic simpler.

[0056] It should be particularly pointed out that the various components or steps in the above-mentioned embodiments can be cross-linked, replaced, added, or deleted with each other. Therefore, the combinations formed by these reasonable arrangements and combinations should also fall within the scope of protection of the present invention, and the scope of protection of the present invention should not be limited to the embodiments.

[0057] The above are exemplary embodiments disclosed in the present invention. The order disclosed in the above embodiments of the present invention is for description only and does not represent the advantages and disadvantages of the embodiments. However, it should be noted that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope disclosed in the embodiments of the present invention (including the claims) is limited to these examples. Various changes and modifications may be made without departing from the scope defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0058] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A drying device for a washing machine, the washing machine comprising an inner washing drum and an outer washing drum, the outer washing drum comprising a front washing drum and a rear washing drum, characterized in that: The drying equipment comprises: A fan, wherein an air inlet pipe of the fan is connected to the upper part of the front washing drum; A drying device, the drying device is arranged on the exhaust pipe at the upper part of the rear washing drum, a drying chamber is provided therein, one end of the drying chamber is connected to the rear washing drum through the exhaust pipe, and the other end is connected to the air outlet pipe of the fan to realize the circulation of dry air in the front washing drum, the inner washing drum, the rear washing drum and the drying device; wherein a normal temperature dehumidifier is arranged in the drying chamber to dry the humid air passing therethrough at normal temperature; Wherein, the drying device comprises: a rotating support mechanism, which is set up in the drying chamber and used to support the normal temperature dehumidifier; The rotating support mechanism is a rotating support frame, which includes a first support frame, a second support frame and a rotating shaft connected between the first support frame and the second support frame, wherein the rotating shaft separates the first support frame and the second support frame.

2. The drying device according to claim 1, characterized in that: The drying device also includes: A accommodating shell is provided with a vent hole on one side of the accommodating shell so as to connect the exhaust pipe and the drying chamber through the vent hole.

3. The drying device according to claim 2, characterized in that: The drying device also includes: a gauze, the gauze being arranged on the rotating support frame and being used for wrapping the normal temperature dehumidifier; and An outer cover wraps the rotating support frame and the gauze to form a placement space for the normal temperature dehumidifier.

4. The drying device according to claim 3, characterized in that: The drying device further comprises: a power device, which is arranged on one side of the rotating shaft and is used to drive the entire rotating support frame to rotate by rotating the rotating shaft.

5. The drying device according to claim 1, characterized in that: The normal temperature dehumidifier occupies 60%-80% of the volume of the drying chamber.

6. The drying device according to claim 4, characterized in that: The drying device further comprises: a heater, which is a semiconductor heating plate and is arranged at the bottom of the drying chamber for further dehumidifying the normal temperature dehumidifier.

7. The drying device according to claim 4, characterized in that: The drying device further comprises: a heater, which is a mosquito-repellent-repellent-coil type spiral electric heating coil and is arranged at the bottom of the drying chamber to further dehumidify the normal temperature dehumidifier.

8. The drying device according to claim 1, characterized in that: The drying device further comprises: a humidity sensor, which is arranged in the drying chamber and is used to measure the humidity of the normal temperature dehumidifier.

9. The drying device according to any one of claims 1 to 8, characterized in that: The normal temperature dehumidifier is zeolite.

10. The drying device according to any one of claims 1 to 8, characterized in that: The drying device further comprises a normal temperature dehumidifier drain pipe, which connects the bottom of the drying chamber with the drain port of the washing machine to drain the moisture in the drying chamber.

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