Drying device

Abstract

A drying device. The device comprises a device body, and a top air duct module (12) and a heat pump module (13) which are provided in the device body; the top air duct module (12) is located at the joint of a top plate and a back plate of the device body; an air outlet (5-1) and at least part of an air inlet (5-2) are formed in the same air hole inclined surface (5-3); a first air swinging device is provided inside the top air duct module (12); the heat pump module (13) comprises a main unit portion and an air box portion (13-10) which are communicated with each other; the main unit portion is flat and vertically placed at the back plate of the device body; the air box portion (13-10) is flat and horizontally placed on a bottom plate of the device body; a plurality of air return ports are formed in the main unit portion; the air outflow position of the heat pump module (13) is arranged at the end of the air box portion (13-10) away from the back plate; a second air swinging device is provided inside the air box portion (13-10); and the airflow blown out by the top air duct module (12) is from top to bottom, the airflow blown out by the heat pump module (13) is from bottom to top, and the two airflows form staggered convection, so that the airflow circulates sufficiently and flows on a larger area of clothes, thereby effectively improving the drying efficiency.

Description

A drying equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on January 19, 2024, with application number 202410082608.7 and invention name “A Drying Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the technical field of dryers, for example, to a drying device. Background Art

[0003] Currently, there are cabinet dryers with internal circulation available on the market. This type of drying cabinet is completely sealed and typically utilizes a heat pump. Using the principle of heat exchange, hot air is blown through the air outlet, volatilizing the moisture molecules on the clothing within the cabinet. The moist air is then drawn into the air inlet duct, where it passes through the evaporator and condensed into water for recycling. Typically, the heat pump is installed at the bottom of the cabinet, with a circulating air duct installed at the top. The air inlet of the top circulating air duct faces the air outlet of the bottom heat pump unit, and the air outlet faces the air inlet of the bottom heat pump unit. This creates a "U"-shaped circulating air duct from top to bottom within the cabinet.

[0004] However, the top and bottom air ducts of the above-mentioned dryer both blow in a fixed direction, which is likely to result in a single airflow path and uneven airflow intensity, causing the problem of wind dead spots and uneven drying of clothes. In addition, if multiple pieces of clothing are squeezed together, the "U"-shaped circulating air duct will be blocked by the clothes, causing attenuation, and unable to reach certain local areas, forming an airflow "attenuation zone". The water molecules on the clothes in the "attenuation zone" evaporate slowly, making it difficult to dry. In this case, the drying efficiency of the above-mentioned dryer is low. Summary of the Invention

[0005] In response to the above-mentioned technical problems of low drying efficiency and excessive height of the whole machine, an embodiment of the present application provides a drying device, which installs a top air duct module at the connection between the top plate and the back plate of the cabinet, and places the heat pump module at the bottom in an L-shaped design. The air outlets of the top air duct module and the bottom heat pump module are respectively provided with swing devices, which can adjust the wind direction, and realize staggered convection in the upper and lower wind directions; for example, the top air duct airflow is from the inside to the outside, while the bottom airflow is from the outside to the inside, which can ensure that the clothes have airflow both near the back plate and near the door; plus two airflows, one from top to bottom and the other from bottom to top, also ensure that the airflow is taken into account up and down, thereby achieving all-round airflow coverage and efficient drying of clothes.

[0006] The purpose of the embodiments of the present application is achieved through the following technical solutions:

[0007] To solve the above technical problems, an embodiment of the present application provides a drying device, comprising a cabinet, a top air duct module and a heat pump module arranged in the cabinet, wherein the top air duct module is located at the connection between the top plate and the back plate of the cabinet; the air outlet and at least a portion of the air inlet of the top air duct module are arranged on the same air hole inclined surface; a first swinging device is provided in the top air duct module to adjust the air outlet angle of the air outlet;

[0008] The heat pump module includes a main unit and a bellows unit that are interconnected. The main unit is flat and placed vertically on the back panel of the cabinet, while the bellows unit is flat and placed horizontally on the bottom panel of the cabinet. The main unit is provided with multiple return air vents, and the air outlet of the heat pump module is provided at the end of the bellows unit away from the back panel. A second swinging device is provided in the bellows unit to adjust the air outlet angle of the heat pump module.

[0009] The airflow blown out by the top air duct module is from top to bottom, and the airflow blown out by the heat pump module is from bottom to top, and the airflow blown out by the top air duct module and the heat pump module form staggered convection.

[0010] In an optional embodiment, the host part includes a shell formed by a host rear cover and a host front cover; the host front cover is provided with an inclined surface, and an inclined return air outlet is provided on the inclined surface.

[0011] In an optional embodiment, a horizontal step surface is provided on the top of the main unit front cover, and a horizontal air return port is provided on the horizontal step surface.

[0012] In an optional embodiment, the main body part of the heat pump module includes a shell and an evaporator and a condenser arranged in the shell. The evaporator is installed on the inner side of the return air through the evaporator cover, and the condenser is arranged under the evaporator. A triangular airflow channel is formed between the evaporator and the condenser.

[0013] In an optional embodiment, a water receiving pan is provided below the evaporator, and the condenser is provided below the evaporator and the water receiving pan via a condenser fixing plate.

[0014] In an optional embodiment, the main part of the heat pump module includes a centrifugal wind turbine unit arranged at the bottom of the shell through a centrifugal wind turbine unit fixing seat, and the centrifugal wind turbine unit includes a centrifugal wind wheel, a double-suction volute and a motor; wherein, there are two centrifugal wind wheels and two double-suction volutes, each centrifugal wind wheel is arranged in a double-suction volute, and the motor is arranged between the two double-suction volutes, and the two centrifugal wind wheels are driven to rotate by the rotating shafts at both ends of the motor; the air outlet of the double-suction volute is horizontally connected to the air inlet of the bellows part.

[0015] In an optional embodiment, the bellows part includes a shell consisting of a bellows lower cover and a bellows upper cover, a bellows air inlet is provided on one side of the bellows part, an air guide rib is provided on the bellows lower cover, a bellows air outlet is provided on the bellows upper cover, and a filter is provided on the bellows air outlet.

[0016] In an optional embodiment, the second swinging device includes a rotating air collecting nozzle arranged on the inner side of the air outlet of the bellows, and the rotating air collecting nozzle is driven by a second stepper motor to swing the air along a preset angle; the cross-section of the rotating air collecting nozzle includes an expanding air collecting portion and a contracting air pressure portion, and the expanding air collecting portion and the contracting air pressure portion have a gradual transition.

[0017] In an optional embodiment, the outer shell of the top air duct module includes a rear cover and a front cover, and a wind power device for blowing air, a heating device for heating, and a first swinging device are provided in the shell space formed by the rear cover and the front cover; wherein, the first swinging device is provided between the wind power device and the air outlet to adjust the angle of air outlet from the air outlet; the heating device is provided on the inside of the air inlet or the air outlet; the air outlet, a part of the air inlet, and the inclined surface of the air hole are all located on the inclined surface of the front cover, and the other part of the air inlet is located on the bottom surface of the front cover.

[0018] In an optional embodiment, the wind power device includes a cross-flow wind wheel assembly, a volute and a volute tongue, wherein the volute is arranged above the cross-flow wind wheel assembly and one end of the volute is close to the upper end of the air outlet; one end of the volute tongue is close to the lower side of the cross-flow wind wheel assembly, and the other end of the volute tongue is close to the lower end of the air outlet; a cross-flow air duct is formed between the volute and the volute tongue for the cross-flow wind wheel assembly to discharge air.

[0019] In an optional embodiment, the first swinging device includes an air guide plate assembly, which is arranged in the cross-flow air duct formed by the volute and the volute tongue, and the air guide plate assembly is provided with at least two preset angles to form a swinging effect by switching the preset angles; or, the first swinging device includes a rotating air outlet channel, which is arranged at the front end of the volute and the volute tongue, and the rotating air outlet channel is driven by a motor to rotate along the motor shaft, thereby forming a swinging effect.

[0020] In an optional embodiment, the air deflector assembly includes an air deflector, a first stepper motor, a left fixed seat of the air deflector, and a right fixed seat of the air deflector, wherein the left fixed seat of the air deflector is arranged on the left side inside the rear cover; the right fixed seat of the air deflector is arranged on the right side inside the rear cover; rotating shafts are provided at both ends of the air deflector, and the rotating shaft at the left end of the air deflector can be rotatably connected to the left fixed seat of the air deflector, and the rotating shaft at the right end of the air deflector can be rotatably connected to the right fixed seat of the air deflector; the first stepper motor is connected to the rotating shaft at one end of the air deflector, so as to drive the air deflector to realize reciprocating rotation motion by the first stepper motor, thereby realizing switching adjustment of the preset angle.

[0021] In an optional embodiment, the crossflow wind wheel assembly includes a crossflow wind wheel, a wind wheel motor for driving the crossflow wind wheel to rotate, and a motor fixing base for fixing the wind wheel motor; the first end of the crossflow wind wheel is fixed to the shaft of the wind wheel motor, the second end of the crossflow wind wheel is installed on the wind wheel end shaft fixing bracket on the inner wall of the rear cover, and the second end of the crossflow wind wheel and the wind wheel end shaft fixing bracket are limited by the wind wheel end shaft cover plate.

[0022] In an optional embodiment, a temperature and humidity sensor is provided in the cabinet to simultaneously monitor the temperature and humidity conditions, wherein:

[0023] When it is monitored that the humidity in the cabinet is above the first preset humidity value and the temperature is lower than the first preset temperature value, the heating temperature of the heating device is adjusted to the first preset temperature value, and the wind speed of the wind device is adjusted to the first gear;

[0024] When it is monitored that the humidity inside the cabinet is between the second preset humidity value and the third preset humidity value (the third preset humidity value is less than the second preset humidity value, and the second preset humidity value is less than the first preset humidity value), and the temperature is at the first preset temperature value, the heating temperature of the heating device is adjusted from the first preset temperature value to the second preset temperature value according to the first preset time gradient, and the wind speed of the wind device is adjusted from the first gear to the second gear; the wind speed of the second gear is less than the wind speed of the first gear;

[0025] When it is monitored that the humidity inside the cabinet is below the third preset humidity value and the temperature is at the second preset temperature value, the heating temperature of the heating device is adjusted to zero from the second preset temperature value according to the second preset time gradient, and after the heating temperature drops to zero, the wind speed of the wind device is adjusted from the second gear to zero.

[0026] Compared with the related art, the beneficial effects of the embodiments of the present application are:

[0027] 1. The staggered convection of airflow in the upper and lower hot air devices avoids uneven drying caused by fixed-point airflow, thereby effectively improving drying efficiency.

[0028] 2. Save bottom space. The air duct stacking technology of the L-shaped heat pump module, compared with the horizontal side-by-side layout of traditional heat pump drying equipment (air inlet channel, two devices, motor, wind wheel, and air outlet channel are horizontally side by side), installs the functional host on the back panel of the cabinet, which greatly frees up the bottom space, the equipment can be shorter, and saves costs. In one embodiment, the top hanging space for clothes is saved. From the cross-section, it can be seen that the triangular space at the back of the top of the cabinet is idle and not occupied by clothes. It is usable space. The top air duct module is set up in this idle triangular area. Compared with the traditional heat pump dryer that occupies the top space for the top air duct installation, longer clothes can be placed, or the cabinet can be made shorter, saving costs.

[0029] 3. More efficient condensation. The L-shaped heat pump module's return air outlet is located near the back panel, at a height close to the convergence point of the upper and lower airflows. This allows for efficient collection of volatile water vapor for rapid condensation. Furthermore, the top duct module and the bottom heat pump module form two localized convection loops, which together form a large condensation loop that circulates the entire cabinet. This ensures more efficient air flow within the cabinet, reducing dead spots and fully utilizing both heat and wind energy, for example when clothing is crowded. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] One or more embodiments are exemplarily described by pictures in the corresponding drawings. These exemplified descriptions do not constitute limitations on the embodiments. Elements / modules and steps with the same reference numerals in the drawings are represented as similar elements / modules and steps. Unless otherwise stated, the figures in the drawings do not constitute a scale limitation.

[0031] FIG1 is a schematic diagram of a traditional internal circulation drying solution provided in an embodiment of the present application;

[0032] FIG2 is a schematic diagram of the distribution of clothing fabrics provided in an embodiment of the present application;

[0033] FIG3 is a schematic diagram comparing the traditional internal circulation drying solution and the new staggered convection drying solution provided in an embodiment of the present application;

[0034] FIG4 is a cross-sectional schematic diagram of a top air duct module of a drying device provided in an embodiment of the present application;

[0035] FIG5 is a schematic diagram of air blowing inside a cabinet provided by an embodiment of the present application;

[0036] FIG6 is a schematic diagram of the internal appearance of a cabinet provided in an embodiment of the present application;

[0037] FIG7 is a schematic diagram of a top air duct module housing provided in an embodiment of the present application;

[0038] FIG8 is an exploded schematic diagram of a top air duct module provided in an embodiment of the present application;

[0039] FIG9 is a schematic cross-sectional view of a rotating air outlet channel provided in an embodiment of the present application;

[0040] FIG10 is a schematic diagram of the height of the wind hole slope provided in an embodiment of the present application;

[0041] FIG11 is a schematic diagram of air outlet angles provided in an embodiment of the present application;

[0042] FIG12 is a wide-angle schematic diagram provided in an embodiment of the present application;

[0043] FIG13 is a schematic diagram of the upper limit position of the air deflector provided in an embodiment of the present application;

[0044] FIG14 is a schematic diagram of an intermediate position of an air deflector provided in an embodiment of the present application;

[0045] FIG15 is a schematic diagram of the lower limit of the air deflector provided in an embodiment of the present application;

[0046] FIG16 is a schematic diagram of air flow circulation in a cabinet provided by an embodiment of the present application;

[0047] FIG17 is a schematic cross-sectional view of a heat pump module provided in an embodiment of the present application;

[0048] FIG18 is a schematic diagram of a cross-sectional wind swing of a heat pump module provided in an embodiment of the present application;

[0049] FIG19 is a schematic diagram of the airflow route inside the host part provided in an embodiment of the present application;

[0050] FIG20 is a schematic diagram of the airflow route of the heat pump module provided in an embodiment of the present application;

[0051] FIG21 is a schematic diagram of an explosion of a heat pump module provided in an embodiment of the present application;

[0052] FIG22 is a schematic diagram of an explosion of a centrifugal wind turbine assembly provided in an embodiment of the present application;

[0053] FIG23 is a schematic diagram of an air box air inlet provided in an embodiment of the present application;

[0054] FIG24 is a cross-sectional schematic diagram of a rotating air collecting nozzle provided in an embodiment of the present application;

[0055] FIG25 is a schematic diagram of the first staggered convection provided in an embodiment of the present application;

[0056] FIG26 is a schematic diagram of a second staggered convection provided in an embodiment of the present application;

[0057] FIG27 is a schematic diagram of a third type of staggered convection provided in an embodiment of the present application;

[0058] FIG28 is a schematic diagram of a drying control process according to an embodiment of the present application;

[0059] FIG29 is a schematic structural diagram of a drying control device provided in an embodiment of the present application;

[0060] Figure 30 is a schematic diagram of the expanded structure of a drying control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0061] In the description of the embodiments of the present application, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and do not require that the embodiments of the present application must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0062] The embodiments of the present application are described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the embodiments of the present application, but are not intended to limit the embodiments of the present application in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the embodiments of the present application. These all fall within the scope of protection of the embodiments of the present application.

[0063] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clearly understood, the embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present application and are not intended to limit the embodiments of the present application.

[0064] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the embodiments of the present application. The terms used in this specification and in the description of the embodiments of the present application are only for the purpose of describing specific implementation methods and are not intended to limit the embodiments of the present application. In addition, the technical features involved in the various implementation methods of the embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

[0065] Figure 1 is a schematic diagram of a conventional internal circulation cabinet dryer. Referring to Figure 1, a conventional internal circulation cabinet dryer has a fully sealed cabinet housing and utilizes a heat pump unit 100. Utilizing the principle of heat exchange, a motor 101 drives a blower 102 to blow hot air through an air outlet duct 103, volatilizing moisture from the clothing within the cabinet. The moist air is then drawn into an air inlet duct 104, where it is condensed into water for recycling via an evaporator 105 and a condenser 106. Typically, the heat pump unit 100 is mounted at the bottom of the cabinet, with a circulation duct 200 installed at the top. The air inlet of the top circulation duct 200 faces the air outlet of the bottom heat pump unit 100, and the air outlet corresponds to the air inlet of the bottom heat pump unit 100. This creates a "U"-shaped circulation duct from top to bottom within the cabinet.

[0066] However, the top circulation duct 200 of the dryer and the heat pump device 100 at the bottom both blow in a fixed direction, which is likely to result in a single airflow path and uneven airflow intensity, causing the problem of wind dead corners, resulting in uneven drying of clothes. Moreover, referring to the clothing fabric distribution diagram shown in Figure 2, in most cases, the collar 301 and the sleeve 302 are folded at the multi-layer fabric. For example, the collar 301 is made of two layers of fabric and folded, and the sleeve 302 is made of two layers of fabric, which makes the collar 301 and the sleeve 302 difficult to dry. If multiple pieces of clothing are squeezed together, the "U"-shaped circulation duct is blocked by the clothing, causing attenuation, and unable to reach some local areas, forming an airflow "attenuation zone". Refer to Figure 3 A. The water molecules on the clothes in the "attenuation zone" evaporate slowly, making it difficult to dry. In addition, some air flows are dispersed to some corners, forming airflow "dead corners" that cannot circulate, thereby affecting the drying efficiency.

[0067] In addition, optionally, the above-mentioned dryer also has the following problems:

[0068] 1. Occupies top hanging space. Top air ducts require space for air ducts and hot air device installation, which takes up space for clothes drying, making the cabinet taller, increasing costs, or affecting the drying of long clothes.

[0069] 2. Occupies cabinet bottom space. Heat pump modules typically feature horizontally aligned air inlet and outlet ducts and two devices (the evaporator and condenser). This structure results in a relatively high heat pump module. Furthermore, installing the heat pump module at the bottom of the cabinet takes up space at the bottom, making the cabinet taller and increasing costs.

[0070] 3. Poor user experience. For example, in a balcony scenario, where the drying device is installed above the washing machine, ceiling height limits the height of the drying device. As a result, long clothes hang down and stick to the bottom partition or air duct opening, causing the clothes to become dirty or blocking the air duct, affecting performance.

[0071] In order to solve the above problems, the embodiment of the present application provides a drying device. Referring to B in Figure 3, the embodiment of the present application sets the top air duct module at the connection between the top plate and the back plate of the cabinet, that is, it is installed at the top of the space where the top plate and the back plate are combined. The air outlet of the top air duct module is set on the inclined surface, so that the wind blown out is oblique and from top to bottom; the heat pump module adopts an L-shaped design and is placed at the bottom. At the back plate position, the heat pump module is provided with an air inlet, and at the bottom plate position, the heat pump module is provided with an air outlet; the air outlets of the top air duct module and the bottom heat pump module are respectively provided with a swing device, which can adjust the wind direction, and realize staggered convection in the upper and lower wind directions; the area of ​​the air flow attenuation zone and the air flow "dead corner" are reduced, so that the air flow circulates fully and allows the air flow to flow over a larger area of ​​the clothes, effectively improving the drying efficiency.

[0072] In addition, the location of the top air duct module and heat pump module can effectively save top and bottom space and avoid occupying the height space of the cabinet.

[0073] The staggered convection mentioned in the embodiments of this application can be understood as follows: the air blown out from the top duct module (referred to as the top airflow) and the air blown out from the heat pump module (referred to as the bottom airflow) flow through different locations and do not directly confront each other. For example, the top airflow flows from the inside out and from top to bottom, while the bottom airflow flows from the outside in and from bottom to top.

[0074] The following describes the embodiments of the present application in conjunction with the accompanying drawings.

[0075] An embodiment of the present application provides a drying device, referring to Figures 5 and 6, which includes a top air duct module 12 arranged in the triangular idle space at the top of the cabinet and a heat pump module 13 arranged at the bottom of the cabinet.

[0076] 4 , the air outlet 5-1 and at least a portion of the air inlet 5-2 of the top air duct module 12 are arranged on the same wind hole slope 5-3. A first swinging device is provided in the top air duct module 12 to adjust the angle of the air outflow from the air outlet 5-1.

[0077] 5 and 6 , the heat pump module 13 includes a flat main unit portion placed vertically at the back of the cabinet and a flat bellows portion 13 - 10 placed horizontally at the bottom of the cabinet.

[0078] The return air of the heat pump module 13 is located at the upper part of the main unit, and the outlet air of the heat pump module 13 is located at the end of the bellows part 13-10 away from the cabinet back panel. A second swinging device is provided in the bellows part 13-10 to adjust the angle of the air outlet from the heat pump module 13.

[0079] The airflow blown out by the top air duct module 12 is from top to bottom, and the airflow blown out by the heat pump module 13 is from bottom to top, and the airflow blown out by the top air duct module 12 and the heat pump module 13 form staggered convection. The blowing directions of the top air duct module 12 and the heat pump module 13 can be adjusted to maintain the staggered convection.

[0080] For example, the directions of the airflow blown out by the top air duct module 12 and the heat pump module 13 shown in FIG16 are to form staggered convection.

[0081] As shown in reference figure 4, an air hole slope 5-3 is provided on the outer shell of the top air duct module, and an air outlet 5-1 and at least a part of the air inlet 5-2 are provided on the air hole slope 5-3. The top air duct module includes a wind power device, a heating device and a first swing wind device. Generally speaking, the heating device can be set on the inside of the air inlet 5-2 or on the inside of the air outlet 5-1, and both can complete the function of heating and forming hot air. However, considering that being set on the inside of the air outlet 5-1 may have a certain impact on the air outlet, in actual application, the effect of being set on the inside of the air inlet 5-2 is better.

[0082] The first swinging device is used to adjust the angle of air outlet from the air outlet 5-1; in one embodiment, the first swinging device can be set between the wind device and the air outlet 5-1, and the angle of air outlet from the air outlet 5-1 can be adjusted by adjusting the angle of the first swinging device. The air outlet 5-1 is provided with a rotatable first swinging device, and the narrow air duct formed by the swinging of the first swinging device can be used to compensate for strong wind at the boundary position, thereby making the drying more uniform.

[0083] As shown in Figure 5, by installing the top duct module 12 in the triangular, unused space at the top, near the junction of the top and back panels, it is possible to avoid occupying the height space of the cabinet. A clothes rod 11 is provided on the outside of the top duct module 12, near the cabinet door, without affecting the hanging of clothes. At the same time, the airflow path is set to blow diagonally downward and has a swing wind function, which can provide airflow to the clothes in all directions along the diagonal line, allowing the airflow to fully pass through the clothes and effectively dry them. At the same time, a slope is provided, and the air outlet and at least a portion of the air inlet are co-located on the slope, forming a 0-degree slope for air inflow and outflow, creating a diagonal local airflow circulation, and avoiding the waste of heat energy caused by straight air discharge.

[0084] In addition, in an optional embodiment, the heat pump module 13 is installed to the bottom of the cabinet; wherein the heat pump module 13 includes a flat main unit part placed vertically on the back panel of the cabinet and a flat bellows part 13-10 placed horizontally at the bottom of the cabinet, the return air of the heat pump module 13 is set at the upper part of the main unit part, and the air outlet of the heat pump module 13 is set at the end of the bellows part 13-10 away from the back panel of the cabinet; a second swinging device is provided in the bellows part 13-10 to adjust the angle of air outlet from the air outlet of the heat pump module 13.

[0085] In this way, the airflow blown out by the top duct module 12 is from top to bottom, and the airflow blown out by the heat pump module 13 is from bottom to top, and the airflow blown out by the top duct module 12 and the heat pump module 13 form a staggered convection. Referring to Figure 16, the heat pump module 13 is installed at the bottom, so that a local airflow internal circulation can be formed at the bottom, that is, airflow route C-airflow route F-airflow route D-airflow route C in Figure 16; at the same time, the top duct module 12 is installed at the top of the cabinet, and a local airflow internal circulation can be formed at the top, that is, airflow route A-airflow route D-airflow route B-airflow route A in Figure 16; at the same time, when the heat pump module 13 and the top duct module 12 work together, a large circulation of condensing airflow can be formed from top to bottom, that is, airflow route C-airflow route E-airflow route B-airflow route A-airflow route D-airflow route C in Figure 16. The airflow blown out by the top air duct module 12 and the heat pump module 13 shown in Figure 16 forms staggered convection. The blowing direction of the top air duct module 12 and the heat pump module 13 can be adjusted by the first swinging device and the second swinging device. It is only necessary to ensure that the blowing directions of the two are staggered.

[0086] Referring to Figures 5 and 6, in an optional embodiment, the cabinet includes a cabinet body 9 and a cabinet door 10, the top air duct module 12 is installed in the triangular area of ​​the top backrest of the cabinet, behind the clothes rod, and upward and backward of the shoulder of the hanger, the L-shaped heat pump module 13 is installed at the bottom backrest of the cabinet, a clothes hanging rod 11 is set at the top of the cabinet, and the bellows part 13-10 is provided with a control switch 14 to control the operation of the heat pump module 13. After saving space, the cabinet as a whole is placed on the washing machine cabinet 15.

[0087] Referring to the cross-sectional view of the top air duct module shown in Figure 4, the housing of the top air duct module is provided with an air hole slope 5-3, and the air hole slope 5-3 is provided with an air outlet 5-1 and at least a portion of the air inlet 5-2.

[0088] The top air duct module 12 includes a wind device, a heating device, and a first swinging device. The first swinging device is located between the wind device and the air outlet 5-1 to adjust the angle of air flowing out of the air outlet 5-1. The heating device is located inside the air inlet 5-2 or the air outlet 5-1.

[0089] With this configuration, the top duct module 12 provides a 0-degree diagonal inlet and outlet flow. The inlet 5-2 and outlet 5-1 are located on the same slope 5-3, with both inlet and outlet air flowing along the normal to the slope, at an angle close to 0°. The airflow flows downward, forming a certain angle with the vertical direction, onto the items, creating a diagonal airflow path for the clothing.

[0090] As the airflow gradually and naturally diverges, it fully reaches all parts of the clothes, and the area over which the airflow passes through the clothes is larger, which is conducive to the rapid evaporation of moisture on the surface of the clothes, thereby achieving fast and efficient drying. After the hot air blown out passes through the clothes, part of the hot air returns to the air inlet 5-2 negative pressure area of ​​the top air duct module after passing through the clothes, forming an air flow cycle in the diagonal area inside the cabinet. The function of this cycle is to create a negative pressure area in the cabinet, thereby driving more air to circulate, avoiding dead corners in the box, causing heat energy loss and wind loss. The heat energy generated by the heating device is not all directly discharged outside the cabinet, but can be repeatedly inhaled into the top air duct module for repeated use and heating, which can quickly heat up.

[0091] The air outlet 5-1 is also provided with a rotatable first swinging device, which uses the narrow air duct formed by the swinging of the first swinging device and the volute 2 or the volute tongue 6 to compensate for strong wind at the boundary position, thereby making the drying more uniform.

[0092] Referring to Figures 7 and 8, in an optional embodiment, the outer shell of the top air duct module 12 includes a rear cover 3 and a front cover 5, and the wind power device, the heating device and the first swing wind device are arranged in the shell space formed by the rear cover 3 and the front cover 5, and the air outlet 5-1, the air inlet 5-2 and the air hole slope 5-3 are all located on the front cover 5.

[0093] During installation, the top surface of the rear cover 3 is fixed to the top surface of the cabinet body, and the back surface of the rear cover 3 is fixed to the back surface of the cabinet body; the upper installation surface and the rear installation surface of the rear cover 3 are in a vertical state, so that during installation, they can match the triangular area on the top of the cabinet body very well.

[0094] The front cover 5 has multiple surfaces including the wind hole inclined surface 5-3, wherein the air outlet 5-1 and a part of the air inlet 5-2 are arranged on the wind hole inclined surface 5-3.

[0095] In an optional solution, the air inlet 5-2 is arranged slightly below the air outlet 5-1, and the air inlet 5-2 can also be opened on the bottom surface of the front cover 5 to facilitate air intake from the bottom.

[0096] Optionally, the heating device includes a PTC heater 7 arranged on the inner side of the air inlet 5-2. This is to prevent the airflow from being blocked by the PTC heater 7. Therefore, the PTC heater 7 is set at the air inlet to provide heat energy to accelerate drying. The PTC heater 7 can also be set at the air outlet, but it will affect the airflow speed.

[0097] Referring to FIG. 4 and FIG. 8 , in an optional embodiment, the wind power device includes a crossflow rotor assembly 1 , a volute 2 and a volute tongue 6 .

[0098] The volute 2 is positioned above the crossflow rotor assembly 1, with one end of the volute 2 positioned near the upper end of the air outlet 5-1. One end of the volute tongue 6 is positioned near the underside of the crossflow rotor assembly 1, while the other end of the volute tongue 6 is positioned near the lower end of the air outlet 5-1. A crossflow duct is formed between the volute 2 and the volute tongue 6, through which air from the crossflow rotor assembly 1 is discharged.

[0099] In an optional embodiment, the crossflow rotor assembly 1 includes a crossflow rotor 1-3, a rotor motor 1-1 for driving the crossflow rotor 1-3, and a motor mounting bracket 1-2 for securing the rotor motor 1-1. The first end of the crossflow rotor 1-3 is secured to the shaft of the rotor motor 1-1, and the second end of the crossflow rotor 1-3 is mounted on a rotor end shaft mounting bracket 3-1 on the inner wall of the rear cover 3. The second end of the crossflow rotor 1-3 is limited between the rotor end shaft mounting bracket 3-1 and the rotor end shaft mounting bracket 3-1 by a rotor end shaft cover 8.

[0100] It should be noted that the selection of a cross-flow impeller is only an optional example and not a limitation. As long as the wind force can meet the requirements, any type of blowing device can be selected.

[0101] Referring to Figures 4 and 8, in an optional embodiment, the first swinging device includes an air guide plate assembly 4, which is arranged in the cross-flow air duct formed by the volute 2 and the volute tongue 6. The air guide plate assembly 4 is provided with at least two preset angles to form a swinging effect by switching the preset angles.

[0102] In an optional embodiment, the air deflector assembly 4 includes an air deflector 4-3, a first stepper motor 4-2, an air deflector left fixing seat 4-5 and an air deflector right fixing seat 4-1.

[0103] Among them, the left fixed seat 4-5 of the air deflector is set on the left side of the rear cover 3; the right fixed seat 4-1 of the air deflector is set on the right side of the rear cover 3; rotating shafts are set at both ends of the air deflector 4-3, and the rotating shaft at the left end of the air deflector 4-3 can be rotatably connected to the left fixed seat 4-5 of the air deflector, and the rotating shaft at the right end of the air deflector 4-3 can be rotatably connected to the right fixed seat 4-1 of the air deflector.

[0104] The first stepper motor 4-2 is connected to the rotating shaft at one end of the air guide plate 4-3, so that the first stepper motor 4-2 drives the air guide plate 4-3 to realize reciprocating rotation, thereby realizing switching adjustment of the preset angle.

[0105] In an optional embodiment, a rotating shaft fixing seat 4-4 is provided inside the left fixing seat 4-5 of the air deflector and the right fixing seat 4-1 of the air deflector, and the rotating shafts at both ends of the air deflector 4-3 are rotatably connected to the rotating shaft fixing seat 4-4.

[0106] In another optional embodiment, the first oscillating device includes a rotating air outlet channel. This channel is located at the front end of the volute 2 and the volute tongue 6. The channel is driven by a motor to rotate along the motor shaft, thereby creating an oscillating effect. The provision of this channel can alleviate the "buzzing" noise caused by the air deflector blocking the air flow during the air flow process.

[0107] As shown in reference figure 9, the rotating air outlet channel can be realized by setting a rotating air outlet nozzle 500. The volute 2 includes a front volute 210 and a rear volute 220. The rotating air outlet nozzle 500 includes an upper nozzle 501 and a lower nozzle 502. The lower nozzle 502 of the rotating air outlet nozzle 500 is rotatably connected to the front end of the volute tongue 6. During operation, the rotating air outlet nozzle 500 rotates up and down with the connection as the axis, thereby achieving wind guiding effects in different directions. For example, when the rotating air outlet nozzle 500 rotates to the uppermost end, the upper nozzle 501 of the rotating air outlet nozzle 500 fits with the front volute 210 of the volute 2, and the wind blown out at this time is directed to a higher place. When the rotating air outlet nozzle 500 rotates downward, the corresponding wind blown out is directed to a lower place.

[0108] Referring to FIG. 10 , in an optional embodiment, the total height L2 of the wind hole slope 5 - 3 region is more than 2.5 times the height L1 of the air outlet 5 - 1 ; that is, L2>2.5L1.

[0109] As shown in FIG11 , the outlet angle of the air outlet 5-1 is optionally 20-80 degrees, that is, according to the shape of different clothes, the outlet angle is recommended to be 20<β<80 degrees; optionally, the angle between the wind hole inclined surface 5-3 and the vertical direction is 30-70 degrees, that is, 30<α<70 degrees; optionally, the outlet speed of the air outlet 5-1 is more than 5 times the return air speed of the air inlet 5-2, in order to ensure that the air flow can achieve a wider range of circulation, so the outlet speed V1 is at least more than 5 times the return air speed V2, that is, V1>5V2. As shown in FIG11 and FIG12 , the outlet channel can achieve a larger outlet angle θ2 by expanding the outlet end of the volute 2 and the volute tongue 6 by a certain angle; in FIG11 , the outlet mode is oblique blowing, with the air inlet at the bottom and the air outlet at the top; FIG12 is a wide-angle, and its outlet channel is equipped with an expanded surface, which increases the outlet angle.

[0110] It should be noted that the air deflector assembly 4 of this embodiment is provided with at least two preset angles, which can be switched to create a swinging wind effect. The following describes the swinging wind effect created by different angles using three common preset angles. The preset angles of the air deflector assembly 4 are achieved by the first stepper motor 4-2 driving the air deflector 4-3 to rotate.

[0111] Referring to Figures 13 and 4 , in an optional embodiment, when the air guide plate 4-3 rotates to its upper limit, it forms a narrow air duct with the flared surface of the volute 2, thereby forming an upper strong wind section, ensuring that the upper corners are blown farther. In other words, when the air guide plate 4-3 rotates upward, the distance between the air guide plate 4-3 and the inner side of the volute 2 approaches, forming an upper narrow air duct. The air duct gradually becomes smaller, and the wind speed gradually increases, forming an upper strong wind zone. This helps to solve the problem of slow drying caused by wind blind spots at the upper boundary or weak wind. For example, for clothes with hats, the strong airflow passing through them can further help evaporate moisture, thereby drying quickly.

[0112] Referring to Figures 14 and 4 , in an optional embodiment, when the air deflector 4-3 is rotated to the middle position, the air duct is at its widest and the wind coverage is maximized, thereby forming a middle wide wind section. In other words, when the air deflector 4-3 is in the middle position, the air deflector 4-3 is perpendicular to the inclined surface of the wind hole, the air outlet area is unobstructed, the air duct is at its widest, and the air outlet range is maximized, forming a wide diagonal wind zone. Typically, the air deflector 4-3 is installed in the middle of the air duct outlet channel.

[0113] Referring to Figures 15 and 4 , in an optional embodiment, when the air guide plate 4-3 rotates to the lower limit position, it forms a narrow air duct with the flared surface of the volute 2, thereby forming a lower strong wind section, ensuring that the lower corners are blown farther. In other words, when the air guide plate 4-3 rotates downward, the distance between the air guide plate 4-3 and the inner side surface of the volute tongue 6 approaches, forming a lower narrow wind channel. The air duct gradually becomes smaller, and the wind speed gradually increases, forming a lower strong wind area, which helps to solve the problem of wind blind spots at the lower boundary or slow drying caused by weak wind. For example, the cuffs of clothes near the inside of the cabinet are usually difficult to reach because the clothes are close to the wall and squeezed. The lower strong wind area can blow directly into this area, thereby quickly evaporating moisture and drying efficiently.

[0114] The above is a detailed description of the top air duct module 12 , and the following is a detailed description of the heat pump module 13 .

[0115] 17 and 21 , in an optional embodiment, the main unit portion of the heat pump module 13 includes a shell formed by a main unit rear cover 13-14 and a main unit front cover 13-9; the main unit front cover 13-9 is provided with a slope 13-9-3, and a sloped return air outlet 13-9-2 is provided on the slope 13-9-3. Along the normal direction of the slope, an upward slanted return air angle is formed, which is opposite to the water vapor gathering area and is more conducive to air intake. At the same time, the slope can also prevent sagging clothes from completely blocking the air outlet and affecting performance.

[0116] A horizontal step surface is provided on the top of the main unit front cover 13-9, and a horizontal return air outlet 13-9-1 is provided on the horizontal step surface. The horizontal return air outlet 13-9-1 serves as an auxiliary return air to avoid the machine returning air being blocked when the inclined return air outlet 13-9-2 is blocked.

[0117] In this embodiment, an "L"-shaped heat pump module 13 is set at the bottom of the cabinet body 9, which includes a flat vertical main unit part and a flat horizontal bellows part 13-10. The two devices and the wind wheel inside the main unit are arranged in a vertically stacked manner, thereby forming a thin and flat shape. When installed, it is close to the back panel of the cabinet body 9 and does not occupy the space at the bottom of the cabinet.

[0118] As shown in reference figure 17, the bellows part 13-10 is placed horizontally along the X-axis, and the main unit part is placed vertically along the Y-axis.

[0119] Referring to Figure 17, the "flat shape" involved in the embodiment of the present application means that the thickness of the bellows portion 13-10 along the Y axis is less than a first preset value, and the thickness of the main body portion along the X axis is less than a second preset value. The first preset value and the second preset value can be set based on experience.

[0120] The horizontal return air vent 13-9-1 and the inclined return air vent 13-9-2 of the main unit are set in the upper part of the main unit, closer to the gathering place of the moist air emitted by the upper and lower air flows, which can quickly inhale the evaporated moist air. The air flow path is from top to bottom, and then blows into the bellows part 13-10 placed flat on the bottom of the cabinet, and blows from the bellows outlet 13-10-2 to the outer cuff area of ​​the clothes. Refer to the air flow route 1 / air flow route 2-air flow route 3-air flow route 4-air flow route 5-air flow route 6-air flow route 7 in Figure 20.

[0121] Because the bellows part 13-10 is flat and thin, it can greatly free up the space at the bottom of the cabinet. A rotatable air nozzle 13-10-5 is also provided at the bellows air outlet 13-10-2 for rotating and swinging air. The swinging air schematic diagram is shown in Figure 18. Optionally, the angle δ of the inclined surface 13-9-3 is less than 20°.

[0122] Referring to Figures 17 and 21, in an optional embodiment, the main body part of the heat pump module 13 includes an evaporator 13-2 and a condenser 13-4 arranged in the shell. The evaporator 13-2 is installed on the inner side of the air outlet through the evaporator cover 13-1. A water receiving tray 13-3 is provided under the evaporator 13-2. The water receiving tray 13-3 has a drainage hole. The drainage hole is connected to a pipe and discharged to a dripping place. The pipe is omitted in the figure; the condenser 13-4 is arranged under the evaporator 13-2 and the water receiving tray 13-3 through the condenser fixing plate 13-5, and a triangular airflow channel is formed between the evaporator 13-2 and the condenser 13-4.

[0123] In this embodiment, the evaporator 13-2 is mounted at the return air outlet, optionally at an angle parallel to the front cover's inclined surface 13-9-3 or less than δ. For ease of production and processing, referring to Figure 18 , the condenser 13-4 is optionally mounted at an angle γ, which forms a 90° angle with the evaporator 13-2. This means that γ = 90°, creating a triangular airflow channel between the evaporator 13-2 and the condenser 13-4.

[0124] The above configuration is for the heat pump module, using back-suction condensation technology. The arrangement of the evaporator and condenser, as well as the location design of the return air vent, are mainly aimed at solving the problem of concentrated humid air in the area. The key points of the back-suction condensation technology in this embodiment and the problems it solves are as follows:

[0125] 1. The airflow from the upper and lower air ducts to the clothes at the same time will form the end of the airflow in the middle area where the clothes are crowded. The evaporated humid air is concentrated in this area. How to speed up the absorption and removal of the humid air in this area is the purpose of this design.

[0126] 2. This solution's condensation back-suction technology focuses on placing the return air vent in the center of the rear of the cabinet, with the vent positioned on a slope with an angle greater than 10 degrees and less than 30 degrees. This allows the return air vent to be closer to areas where humid air is concentrated, and the normal direction of the return air vent is angled upward, allowing the humid air at the end of the airflow to be drawn back upward from the rear, resulting in rapid condensation.

[0127] 3. The layout of the evaporator and condenser differs from the traditional side-by-side arrangement. The evaporator is tilted vertically, with the normal direction tilted upward. The condenser is located below the evaporator and stacked perpendicularly with the evaporator. This benefits the evaporator by bringing it closer to and directly facing the area where humid air is concentrated. The condenser is placed horizontally below the evaporator but perpendicular to the evaporator. After entering the return air inlet, the wind turns 90 degrees toward the condenser, forming a flared air duct (i.e., the cross-section above the condenser is small, and the cross-section of the air duct increases after passing the condenser), reducing wind resistance.

[0128] 4. The water pan is installed between the evaporator and condenser to prevent the condensed water from dripping onto the condenser, causing the condenser temperature to drop and thus affecting the production of high-temperature air.

[0129] 17 and 21 , in an optional embodiment, the main unit portion of the heat pump module 13 further includes a centrifugal wind turbine unit 13-15 disposed at the bottom of the shell through a centrifugal wind turbine unit fixing seat 13-13. The centrifugal wind turbine unit 13-15 is installed below the condenser 13-4. Referring to FIG22 , the centrifugal wind turbine unit 13-15 includes a centrifugal wind wheel 13-7, a double-suction volute 13-6, and a motor 13-8.

[0130] Among them, there are two centrifugal wind wheels 13-7 and two double-suction volutes 13-6, each centrifugal wind wheel 13-7 is arranged in a double-suction volute 13-6, and the motor 13-8 is arranged between the two double-suction volutes 13-6, and the two centrifugal wind wheels 13-7 are driven to rotate by the rotating shafts at both ends of the motor 13-8; in order to ensure smooth air flow at the volute air inlet close to the motor, a certain distance L1 needs to be maintained between the end face of the motor 13-8 and the end face of the double-suction volute 13-6, and the optional L1>15mm.

[0131] The volute air inlet is shown as the volute left air inlet 13-6-3 and the volute right air inlet 13-6-4 in Figure 19. Each double-suction volute 13-6 has air inlets on the left and right, that is, there are four volute air inlets in total. The air inlet direction of the volute air inlet is perpendicular to the side of the main unit front cover 13-9, and the air flow enters the volute air inlet from the side normal. Referring to Figure 19, usually, a certain distance L2 needs to be maintained between the side wall of the equipment and the volute air inlet to ensure smooth air suction and reduce wind noise. Optionally, L2>30mm.

[0132] After the airflow passes through the two devices, it follows airflow route 4 and airflow route 5 and enters the four volute air inlets of the centrifugal wind turbine unit 13-15. The airflow is blown out horizontally from the volute air outlet 13-6-5 of the double-suction volute 13-6 by the high-speed rotation of the centrifugal wind wheel 13-7, and enters the flat channel formed by the upper and lower walls of the wind box part 13-10. It then docks with the air inlet of the wind box part 13-10 in the horizontal direction.

[0133] Referring to Figure 22, in an optional embodiment, the double-suction volute 13-6 includes a volute upper cover 13-6-1 and a volute lower cover 13-6-2, and the volute upper cover 13-6-1 and the volute lower cover 13-6-2 are fixed by a fixed pressure plate 13-16. The double-suction volute 13-6 and the motor 13-8 are also fixed to the centrifugal wind turbine unit fixing seat 13-13 by the fixed pressure plate 13-16. Referring to Figure 21, a bottom mounting square hole 13-14-1 is provided at the bottom of the main engine rear cover 13-14, and the centrifugal wind turbine unit fixing seat 13-13 is installed on the bottom mounting square hole 13-14-1.

[0134] Referring to Figures 20 and 21, in an alternative embodiment, the centrifugal wind turbine assembly 13-15 can be stacked vertically with the compressor 13-11, saving width and space, thereby making the main unit thinner and flatter. The compressor 13-11 is mounted on the centrifugal wind turbine assembly 13-15 via a compressor mounting bracket 13-12. Referring to Figure 21, in an alternative embodiment, an electrical control panel 13-17 is also provided within the main unit to control the operation of various components.

[0135] Referring to Figure 23, in an optional embodiment, a bellows air inlet 13-10-1 is provided on one side of the bellows portion 13-10. Referring to Figures 17, 20, and 21, the air outlet of the double-suction volute 13-6, that is, the volute air outlet 13-6-5, is docked or plugged with the air inlet of the bellows portion 13-10, that is, the bellows air inlet 13-10-1, in the horizontal direction.

[0136] Referring to Figure 21, in an optional embodiment, the bellows part 13-10 includes a shell consisting of a bellows lower cover 13-10-7 and a bellows upper cover 13-10-4, a bellows air inlet 13-10-1 is provided on one side of the bellows part 13-10, an air guide rib 13-10-8 is provided on the bellows lower cover 13-10-7 to avoid eddy currents, a bellows air outlet 13-10-2 is provided on the bellows upper cover 13-10-4, and a filter 13-10-3 is provided on the bellows air outlet 13-10-2.

[0137] Optionally, the total area of ​​the bellows air outlet 13-10-2 is larger than the area of ​​the volute air outlet 13-6-5. The function of the bellows part 13-10 is to mix the air blown out of the two sets of double-suction volutes 13-6, increase the pressure, and then blow it upward from the corresponding bellows air outlet 13-10-2, thereby diverting the air flow.

[0138] With reference to Figures 21 and 24, in an optional embodiment, the second oscillating air device includes a rotating air collecting nozzle 13-10-5 disposed inside the air outlet 13-10-2 of the bellows. The rotating air collecting nozzle 13-10-5 is driven by a second stepper motor 13-10-6 to oscillate along a preset angle, thereby increasing air flow, reducing wind blind spots, and achieving more uniform drying. The cross-section of the rotating air collecting nozzle 13-10-5 includes an expanding air collecting portion 13-10-51 and a contracting air pressure portion 13-10-52, with the expanding air collecting portion 13-10-51 and the contracting air pressure portion 13-10-52 transitioning gradually. The expanding portion 13-10-51 is designed to collect a larger amount of air, while the contracting portion 13-10-52 is designed to increase the air pressure, project it farther, and increase the air flow velocity across the surface of the clothing, thereby facilitating volatilization.

[0139] Based on the above-mentioned settings of the top air duct module 12 and the heat pump module 13, referring to the first staggered convection schematic diagram shown in Figure 25, in this mode, the top air duct module 12 is swung to blow air toward the leftmost side through the first swinging device, and the heat pump module 13 is swung to blow air toward the rightmost side through the second swinging device, so as to achieve staggered convection between the two.

[0140] Referring to the second staggered convection schematic diagram shown in FIG26 , in this mode, the top duct module 12 is swung toward the center by the first swing device, and the heat pump module 13 is swung toward the center by the second swing device. When the two are facing the center, there is still a certain degree of stagger to achieve staggered convection between the two. Referring to the third staggered convection schematic diagram shown in FIG27 , in this mode, the top duct module 12 is swung toward the rightmost side by the first swing device, and the heat pump module 13 is swung toward the leftmost side by the second swing device to achieve staggered convection between the two. Through these multiple modes of staggered convection, all places in the cabinet can be covered, achieving drying with basically no dead angles.

[0141] In an optional embodiment, an aromatherapy device may be installed at any air outlet inside the module / device to achieve the function of adding fragrance to clothes.

[0142] In an optional embodiment, a sterilization device, such as a UVC lamp or a photocatalyst, may be installed inside the module / device for sterilization.

[0143] In an optional embodiment, a temperature and humidity sensor may be provided inside the module / device to synchronously monitor the temperature and humidity conditions so as to control the operation of the heating device and the wind power device.

[0144] In summary, the embodiments of the present application provide a drying device with the following advantages: 1. Staggered convection of airflow between the upper and lower hot air devices avoids uneven drying caused by fixed-point airflow. 2. It saves floor space. The L-shaped heat pump module stacking technology, compared to the horizontal side-by-side layout of traditional heat pump drying equipment: the air inlet channel, two devices, motor, impeller, and air outlet channel are arranged horizontally side by side. In this embodiment, the functional main unit is installed on the back panel of the cabinet, which greatly frees up floor space, allows for a shorter device, and saves costs.

[0145] In one embodiment, the top hanging space for clothes is saved. From the cross section, it can be seen that the triangular space at the back of the top of the cabinet is idle and not occupied by clothes, so it is usable space. The top air duct module is set up in this idle triangular area. Compared with the traditional heat pump dryer that occupies the top space for the top air duct installation, longer clothes can be placed, or the cabinet can be made shorter, saving costs. 3. More efficient condensation. The return air inlet of the L-shaped heat pump module is close to the back panel, and its height is close to the confluence of the upper and lower airflows. It can efficiently collect water vapor at the volatilization point for rapid condensation.

[0146] In addition, the top air duct module and the bottom heat pump module form two local air convection internal circulations, which together form a large upper and lower condensation circulation surrounding the entire cabinet. For example, when clothes are crowded, it ensures more sufficient air flow in the box, reduces air "dead corners", and makes full use of heat energy and wind energy.

[0147] This embodiment also provides a process for controlling drying. The method of this embodiment is based on the original drying equipment, and a temperature and humidity sensor is set in the cabinet to synchronously monitor the temperature and humidity status. Referring to the process shown in Figure 28, for the real-time monitoring of the temperature and humidity status in the cabinet, this embodiment can include the following control process.

[0148] Step 10: When it is monitored that the humidity in the cabinet is above the first preset humidity value and the temperature is lower than the first preset temperature value, the heating temperature of the heating device is increased to the first preset temperature value, and the wind speed of the wind device is adjusted to the first gear.

[0149] The principle of this step is as follows: Generally speaking, the humidity of clothes is highest at the beginning of drying. To achieve a faster drying effect, this step in this embodiment adjusts the heating temperature and wind speed by judging the humidity and temperature. The first preset humidity value is set to a relatively high humidity value. For example, if the humidity is A or above, it indicates that the humidity in the cabinet is relatively high, so the first preset humidity value can be set to A.

[0150] Correspondingly, the setting standard of the first preset temperature value is a relatively large temperature value, which is used to quickly dry clothes with relatively high humidity. For example, when the humidity is set to be relatively high, a relatively large temperature a can be used for heating and drying. The setting of this first preset temperature value a is higher than the general heating temperature to achieve rapid heating and drying of clothes with relatively high humidity. In this way, when the humidity in the cabinet is monitored to be above the first preset humidity value A and the temperature is less than the first preset temperature value a, it means that the humidity in the cabinet is sufficient and is in the range of relatively high humidity, but the temperature is insufficient and cannot be dried quickly. Therefore, the heating temperature of the heating device is increased to the first preset temperature value a, that is, the heating temperature is increased, and the clothes are quickly dried by increasing the temperature. At the same time, in this case, the wind speed of the wind device can also be adjusted to the first gear, which is the highest wind speed in this embodiment, to further achieve rapid drying.

[0151] It should be noted that the specific value of the first preset humidity value A can be set according to actual conditions, as long as it meets the above principles, and is not limited here. Similarly, the first preset temperature value a can also be set according to actual conditions, as long as it meets the above principles, and is not limited here. In some cases, different first preset humidity value A and first preset temperature value a can be set based on different clothing, for example, based on different clothing materials or clothing thickness. For thin summer clothing, the first preset humidity value A and first preset temperature value a can be set lower, while for thick winter clothing, the first preset humidity value A and first preset temperature value a can be set higher.

[0152] Step 20: When it is monitored that the humidity inside the cabinet is between the second preset humidity value and the third preset humidity value, and the temperature is at the first preset temperature value, the heating temperature of the heating device is adjusted from the first preset temperature value to the second preset temperature value according to the first preset time gradient, and the wind speed of the wind device is adjusted from the first gear to the second gear.

[0153] The principle of this step is as follows: Generally speaking, after drying for a certain period of time under step 10, the humidity inside the cabinet will be significantly reduced, and the temperature will be maintained at the first preset temperature value a. Because the temperature used in step 10, that is, the first preset temperature value a, is actually a relatively high temperature, it has the effect of rapid drying when the humidity is high. However, if the humidity is reduced to a certain level and the higher first preset temperature value a is still used for drying, the high temperature may damage the clothes. For example, some pure cotton clothes are not very resistant to high temperatures, so it is necessary to reduce the temperature inside the cabinet accordingly after the humidity is reduced, otherwise the clothes will be easily damaged. Therefore, this step of the present embodiment sets a second preset humidity value and a third preset humidity value, where the second preset humidity value B is a humidity that is significantly lower than the first preset humidity value A but has not yet been dried, and the third preset humidity value C is a humidity that has basically been dried. When the humidity inside the cabinet is monitored to be between the second preset humidity value and the third preset humidity value, and the temperature is at the first preset temperature value, it means that the clothes inside the cabinet have been dried to a certain degree through the first preset temperature value a in step 10, that is, the humidity has reached the critical point of the second preset humidity value B. At this time, the temperature can be lowered a little to prevent damage to the clothes. Therefore, the heating temperature of the heating device needs to be lowered to the second preset temperature value b. The second preset temperature value b is less than the first preset temperature value a, which is a normal drying temperature that will not damage the clothes. At the same time, the wind speed can also be adjusted from the first gear to the second gear. The wind speed of the second gear is less than the wind speed of the first gear and is the wind speed required for normal drying. After the humidity is quickly lowered, the wind speed can also be adjusted slightly smaller to save energy. Optionally, the heating temperature of the heating device can be adjusted gradually from a first preset temperature value to a second preset temperature value according to a first preset time gradient. The gradient setting can be selected according to demand for the gradual adjustment according to the first preset time gradient. For example, the gradual adjustment can be completed within 10 seconds, or within 30 seconds, depending on demand; the gradual adjustment can make the temperature inside the cabinet in a smooth transition state, and will not cause adverse effects due to sudden changes in temperature.

[0154] Step 30: When it is monitored that the humidity inside the cabinet is below the third preset humidity value and the temperature is at the second preset temperature value, the heating temperature of the heating device is adjusted to zero from the second preset temperature value according to the second preset time gradient, and after the heating temperature drops to zero, the wind speed of the wind device is adjusted from the second gear to zero.

[0155] The principle of this step is as follows: Generally speaking, after the process of step 20, the clothes are almost dried, and the third preset humidity value C is considered to be basically dried. Therefore, when the humidity in the cabinet reaches below the third preset humidity value and the temperature is at the second preset temperature value, it means that after the implementation of step 20, the cabinet has been maintained at the second preset temperature value b for a period of time to dry the clothes, and the humidity can be reduced from between the second preset humidity value B and the third preset humidity value C to below the third preset humidity value C. At this time, the clothes are almost dried and can be prepared to end the drying. However, in order to prevent the clothes from still having a certain humidity, this step does not directly end the heating and blowing. Instead, the heating temperature of the heating device is gradually reduced from the second preset temperature value b to zero according to the second preset time gradient. After the heating temperature drops to zero, the wind speed is adjusted from the second level to zero. The second preset time gradient can be set as needed, for example, it can be completed in 30 seconds or in one minute, depending on the needs. This gradual adjustment step can achieve the final drying action in the cabinet, eliminating the possibility of incomplete drying caused by judgment errors.

[0156] In one embodiment, when adjusting the wind force and heating temperature according to humidity and temperature, the wind force and temperature of the top air duct module and the heat pump module can be adjusted together. When the heating temperature is finally adjusted to zero, the top air duct module and the heat pump module are shut down together.

[0157] Through the above-mentioned process of controlling the drying, this embodiment can achieve the effects of rapid drying, safety and energy saving. For a state with high humidity, it can be quickly dried to a lower humidity, and for a state with low humidity, it can be dried in a safe and energy-saving manner. The process of this embodiment is also provided with a gradient cooling process, which can ensure the efficiency and quality of drying.

[0158] Regarding the above-mentioned process of controlling drying, this embodiment also provides a device for controlling drying. As shown in Figure 29, the device for controlling drying includes: at least one processor 21; and a memory 22 that is communicatively connected to the at least one processor 21; wherein the memory 22 stores instructions that can be executed by the at least one processor 21, and the instructions are executed by the at least one processor 21 so that the at least one processor 21 can execute the process of controlling drying of the aforementioned embodiment.

[0159] The processor 21 and the memory 22 can be connected via a bus or other means. FIG29 takes the connection via a bus as an example.

[0160] Memory 22, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the program instructions / modules corresponding to the drying control process in the embodiments of the present application. Processor 21 executes the non-volatile software programs, instructions, and modules stored in memory 22 to execute various server functional applications and data processing, thereby implementing the drying control process in the above-described method embodiment.

[0161] The memory 22 may include a program storage area and a data storage area. The program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created based on the use of the device for controlling the drying process, etc. Furthermore, the memory 22 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state memory device. In some embodiments, the memory 22 may optionally include a memory remotely located relative to the processor 21, and these remote memories may be connected to the device for controlling the drying process via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0162] One or more modules are stored in the memory 22, and when executed by one or more processors 21, the drying control process in any of the above method embodiments is executed, for example, the method steps of the drying control process described above are executed.

[0163] The above-mentioned product can execute the method provided in the embodiment of this application, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not fully described in this embodiment, please refer to the method provided in the embodiment of this application.

[0164] In one embodiment, the drying control device may further include: a Wi-Fi device 23, a display screen 24, a Bluetooth device 25, an audio circuit 26, a power supply system 27, a peripheral interface 28, a sensor module 29, a data conversion module 30, and other components. These components may communicate via one or more communication buses or signal lines. Those skilled in the art will appreciate that the hardware structure shown in FIG30 does not limit the drying control device. The drying control device may include more or fewer components than shown, or may combine certain components or arrange the components differently.

[0165] The processor 21 serves as the control center for the drying device. It utilizes various interfaces and circuits to connect the various components of the drying device. It executes or runs applications stored in the memory 22 and accesses data and instructions stored in the memory 22 to perform various functions and process data. In some embodiments, the processor 21 may include one or more processing units. The processor 21 may also integrate an application processor 21 and a modem processor 21. The application processor 21 primarily handles the operating system, user interface, and application programs, while the modem processor 21 primarily handles wireless communications. It is understood that the modem processor 21 may not be integrated into the processor 21.

[0166] In some other embodiments of the embodiments of the present application, the processor 21 may further include an artificial intelligence (AI) chip. The learning and processing capabilities of the artificial intelligence chip include image understanding capabilities, natural language understanding capabilities, and speech recognition capabilities. The artificial intelligence chip can enable the device for controlling drying to have better performance, longer battery life, and better security and privacy. For example, if the device for controlling drying processes data through the cloud, the data needs to be uploaded for processing before the result is returned, which is very inefficient under relevant technical conditions. If the local end of the device for controlling drying has strong AI learning capabilities, then the device for controlling drying does not need to upload the data to the cloud, and can be processed directly on the local end, thereby improving the security and privacy of the data while improving processing efficiency.

[0167] The memory 22 is used to store applications and data. The processor 21 executes various functions and data processing of the drying control device by running the applications and data stored in the memory 22. The memory 22 mainly includes a program storage area and a data storage area. The program storage area can store an operating system and applications required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created when using the drying control device (such as audio data, video data, etc.). In addition, the memory 22 can include high-speed random access memory 22 and non-volatile memory 22, such as a disk storage 22, a flash memory device, or other non-volatile solid-state memory 22. The memory 22 can store various operating systems, such as operating systems developed by Apple and Microsoft.

[0168] The display screen 24 is used to display images, videos, etc. The display screen 24 may be a touch screen. In some embodiments, the drying control device may include one or N display screens 24, where N is a positive integer greater than 1. The processor 21 may include one or more graphics processing units (GPUs) that execute program instructions to generate or change display information. The drying control device implements display functions via the GPU and the display screen 24. The GPU is used to perform mathematical and geometric calculations for graphics rendering.

[0169] The Wi-Fi device 23 is used to provide network access that complies with Wi-Fi-related standard protocols for the device for controlling drying. The device for controlling drying can access a Wi-Fi access point through the Wi-Fi device 23, thereby helping to browse web pages and access streaming media, etc., and it provides users with wireless broadband Internet access. The device for controlling drying can also establish a Wi-Fi connection with a terminal device connected to the Wi-Fi access point through the Wi-Fi device 23 and the Wi-Fi access point for mutual data transmission. In some other embodiments, the Wi-Fi device 23 can also serve as a Wi-Fi wireless access point, which can provide Wi-Fi network access for other electronic devices. For example, the Wi-Fi device 23 includes at least one wireless network card.

[0170] The Bluetooth device 25 is used to realize data exchange between the drying control device and other short-range electronic devices (such as terminals, smart watches, etc.). The Bluetooth device 25 in the embodiment of the present application can be an integrated circuit or a Bluetooth chip.

[0171] The audio circuit 26, speaker, and microphone provide an audio interface between the user and the drying control device. The audio circuit 26 converts received audio data into electrical signals and transmits them to the speaker, which then converts them into sound signals for output. The microphone, on the other hand, converts collected sound signals into electrical signals, which are then received by the audio circuit 26 and converted into audio data. The audio data is then transmitted to a terminal via the internet, Wi-Fi, or Bluetooth, or is output to the memory 22 for further processing.

[0172] The power system 27 is used to charge the various components of the drying control device. The power system 27 may include a battery and a power management module. The battery may be logically connected to the processor 21 via a power management chip, thereby managing charging, discharging, and power consumption through the power system 27.

[0173] The peripheral interface 28 provides various interfaces for external input / output devices (such as an external display, external memory 22, and a user identification module card). For example, the peripheral interface 28 can be used to connect to an external memory 22, such as a Micro SD card, to expand the storage capacity of the drying control device. The peripheral interface 28 can be used to couple these external input / output peripheral devices to the processor 21 and memory 22.

[0174] The sensor module 29 may include at least one sensor. For example, a light sensor, a motion sensor, and other sensors. In one embodiment, the light sensor may include an ambient light sensor. Among them, the ambient light sensor can adjust the brightness of the display screen 24 according to the brightness of the ambient light. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the device that controls drying (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), etc. Of course, according to actual needs, the sensor module 29 can also include any other feasible sensors.

[0175] The data conversion module 30 may include a digital-to-analog converter and an analog-to-digital converter. The functions of the digital-to-analog converter and the analog-to-digital converter may be explained in the corresponding technical terms mentioned above and will not be repeated here.

[0176] An embodiment of the present application further provides a non-volatile computer-readable storage medium, which stores computer-executable instructions. The computer-executable instructions are executed by one or more processors, for example, to execute the method steps of controlling the drying process described above.

[0177] An embodiment of the present application also provides a computer program product, including a computer program stored on a non-volatile computer-readable storage medium, the computer program including program instructions, which, when executed by a computer, enable the computer to execute the drying control process in any of the above-mentioned method embodiments, for example, execute the method steps of the drying control process described above.

[0178] It should be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0179] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course, can also be implemented by hardware. Those skilled in the art can understand that all or part of the processes in the above embodiment methods can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0180] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Based on the ideas of the embodiments of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the embodiments of the present application as described above. For the sake of simplicity, they are not provided in detail. Although the embodiments of the present application are described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A drying device, comprising a cabinet body, a top air duct module (12) arranged in the cabinet body, and a heat pump module (13), wherein: The top air duct module (12) is located at the connection of the top plate and the back plate of the cabinet body; the air outlet (5-1) and at least a part of the air inlets (5-2) of the top air duct module (12) are arranged on the same air hole inclined plane (5-3); a first air swinging device is arranged in the top air duct module (12) to adjust the air outlet angle of the air outlet (5-1). The heat pump module (13) includes a main machine part and an air box part (13-10) which are communicated with each other. The main machine part is flat and vertically placed at the back plate of the cabinet body, and the air box part (13-10) is flat and horizontally placed on the bottom plate of the cabinet body. The main machine part is provided with a plurality of air return openings. The air outlet of the heat pump module (13) is arranged at one end of the air box part (13-10) away from the back plate; a second air swinging device is arranged in the air box part (13-10) to adjust the air outlet angle of the air outlet of the heat pump module (13). The air flow blown out by the top air duct module (12) is from top to bottom, and the air flow blown out by the heat pump module (13) is from bottom to top, and the air flows blown out by the top air duct module (12) and the heat pump module (13) form a staggered countercurrent.

2. The drying device according to claim 1, wherein, The main machine part includes a housing formed by a main machine rear cover (13-14) and a main machine front cover (13-9); the main machine front cover (13-9) is provided with an inclined plane (13-9-3), and an inclined plane air return opening (13-9-2) is arranged on the inclined plane (13-9-3).

3. The drying device according to claim 2, wherein, The top of the main machine front cover (13-9) is provided with a horizontal step surface, and a horizontal air return opening (13-9-1) is arranged on the horizontal step surface.

4. The drying device according to claim 1, wherein, The main machine part of the heat pump module (13) includes a housing and an evaporator (13-2) and a condenser (13-4) arranged in the housing. The evaporator (13-2) is installed inside the air return part through an evaporator cover plate (13-1). The condenser (13-4) is arranged below the evaporator (13-2), and a triangular air flow channel is formed between the evaporator (13-2) and the condenser (13-4).

5. The drying device according to claim 4, wherein A water receiving tray (13-3) is arranged below the evaporator (13-2), and the condenser (13-4) is arranged below the evaporator (13-2) and the water receiving tray (13-3) through a condenser fixing plate (13-5).

6. The drying device according to any one of claims 1-5, wherein, The main engine part comprises a centrifugal wind turbine unit (13-15) arranged at the bottom of the shell body through a centrifugal wind turbine unit fixing seat (13-13), and the centrifugal wind turbine unit (13-15) comprises a centrifugal wind wheel (13-7), a double-suction volute (13-6) and a motor (13-8); wherein, two centrifugal wind wheels (13-7) and two double-suction volutes (13-6) are provided, each of the centrifugal wind wheels (13-7) is provided in one of the double-suction volutes (13-6), and the motor (13-8) is provided between the two double-suction volutes (13-6), and the two centrifugal wind wheels (13-7) are driven to rotate through the rotating shafts at both ends of the motor (13-8); and the air outlet of the double-suction volute (13-6) is connected with the air inlet of the bellows part (13-10) in the horizontal direction.

7. The drying device according to any one of claims 1-5, wherein, The bellows part (13-10) comprises a shell body consisting of a bellows lower cover (13-10-7) and a bellows upper cover (13-10-4); a bellows air inlet (13-10-1) is arranged on one side of the bellows part (13-10); an air guide rib (13-10-8) is arranged on the bellows lower cover (13-10-7); a bellows air outlet (13-10-2) is opened on the bellows upper cover (13-10-4); and a filter screen (13-10-3) is arranged on the bellows air outlet (13-10-2).

8. The drying device according to claim 7, wherein, The second wind swinging device includes a rotating air collecting nozzle (13-10-5) arranged on the inner side of the air outlet (13-10-2) of the bellows, and the rotating air collecting nozzle (13-10-5) is driven by a second stepper motor (13-10-6) to swing the air along a preset angle; the cross section of the rotating air collecting nozzle (13-10-5) includes an expanding air collecting portion (13-10-51) and a closing air pressure portion (13-10-52), and the expanding air collecting portion (13-10-51) and the closing air pressure portion (13-10-52) have a gradual transition.

9. The drying device according to claim 1, wherein, The outer shell of the top air duct module (12) includes a rear cover (3) and a front cover (5), and a wind device for blowing air, a heating device for heating, and the first swinging device are arranged in the shell space formed by the rear cover (3) and the front cover (5); wherein the first swinging device is arranged between the wind device and the air outlet (5-1) to adjust the angle of air outlet from the air outlet (5-1); the heating device is arranged on the inner side of the air inlet (5-2) or the air outlet (5-1); the air outlet (5-1), a part of the air inlet (5-2) and the wind hole inclined surface (5-3) are all located on the inclined surface of the front cover (5), and another part of the air inlet (5-2) is located on the bottom surface of the front cover (5).

10. The drying device according to claim 9, wherein, The wind power device includes a cross-flow wind wheel assembly (1), a volute (2), and a volute tongue (6). Among them, the volute (2) is arranged above the cross-flow wind wheel assembly (1), and one end of the volute (2) is close to the upper end of the air outlet (5-1); one end of the volute tongue (6) is close to the lower side of the cross-flow wind wheel assembly (1), and the other end of the volute tongue (6) is close to the lower end of the air outlet (5-1); a cross-flow air duct for the cross-flow wind wheel assembly (1) to discharge air is formed between the volute (2) and the volute tongue (6).

11. The drying device according to claim 10, wherein the first air-swinging device includes a wind guide plate assembly (4). The wind guide plate assembly (4) is arranged in the cross-flow air duct formed by the volute (2) and the volute tongue (6). The wind guide plate assembly (4) is provided with at least two preset angles to form an air-swinging effect by switching the preset angles; or the first air-swinging device includes a rotating air outlet channel. The rotating air outlet channel is arranged at the front ends of the volute (2) and the volute tongue (6). The rotating air outlet channel is driven by a motor to rotate along the motor rotating shaft, thereby forming an air-swinging effect.

12. The drying device according to claim 11, wherein, The wind guide plate assembly (4) includes a wind guide plate (4-3), a first stepping motor (4-2), a left wind guide plate fixing seat (4-5), and a right wind guide plate fixing seat (4-1). Among them, the left wind guide plate fixing seat (4-5) is arranged on the left side inside the rear cover (3); the right wind guide plate fixing seat (4-1) is arranged on the right side inside the rear cover (3); both ends of the wind guide plate (4-3) are provided with rotating shafts, and the rotating shaft at the left end of the wind guide plate (4-3) is rotatably connected to the left wind guide plate fixing seat (4-5), and the rotating shaft at the right end of the wind guide plate (4-3) is rotatably connected to the right wind guide plate fixing seat (4-1); the first stepping motor (4-2) is connected to the rotating shaft at one end of the wind guide plate (4-3) to drive the wind guide plate (4-3) to perform a reciprocating rotational motion through the first stepping motor (4-2), so as to realize the switching adjustment of the preset angle.

13. The drying device according to claim 10, wherein, The cross-flow wind wheel assembly (1) includes a cross-flow wind wheel (1-3), a wind wheel motor (1-1) for driving the cross-flow wind wheel (1-3) to rotate, and a motor fixing seat (1-2) for fixing the wind wheel motor (1-1); the first end of the cross-flow wind wheel (1-3) is fixed to the shaft of the wind wheel motor (1-1), the second end of the cross-flow wind wheel (1-3) is installed on the wind wheel end shaft fixing bracket (3-1) on the inner wall of the rear cover (3), and a limit is carried out between the second end of the cross-flow wind wheel (1-3) and the wind wheel end shaft fixing bracket (3-1) through a wind wheel end shaft cover plate (8).

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