A laundry treating apparatus

Abstract

The present application provides a kind of clothes processing equipment, including outer tube, inner tube, drive motor, drying air duct, runner, clutch and traction piece;Inner tube is arranged in outer tube, and the output shaft of drive motor is drivenly connected with inner tube;Drying air duct and outer tube are communicated to form drying circuit, and air door is arranged in drying air duct;Clutch is arranged between runner and output shaft, and has the first state of making runner rotate synchronously with output shaft and the second state of making runner not rotate with output shaft;One end of traction piece is wound on runner, and the other end is drivingly connected with air door;When runner rotates, air door can be moved, and then air door can control the conduction or disconnection of drying air duct, and / or adjust the flow area of drying air duct;Air door and inner tube share one drive motor, which simplifies the equipment structure and reduces the manufacturing cost;Power resources are fully utilized, the overall energy efficiency ratio of equipment is improved, and the energy consumption of additional power source is avoided.

Description

Technical Field

[0001] This invention belongs to the field of clothing processing technology, and in particular relates to a clothing processing device. Background Technology

[0002] Existing washing machines with drying functions typically include an outer drum, an inner drum, and a drying air duct. The outer drum includes an air inlet and an air outlet, and the drying air duct connects the air inlet and outlet. The drying air duct contains movable dampers for opening or closing the drying air duct. Traditional dampers are usually driven by independent motors or electromagnetic control devices, leading to a complex system structure and increased cost. Furthermore, in the event of a sudden power outage or control system failure, the dampers may not automatically reset, posing potential safety and stability risks. In addition, the motor driving the inner drum is only used to drive the inner drum's rotation, resulting in underutilization of its power and wasted energy resources. Summary of the Invention

[0003] In view of this, the present invention provides a clothing processing device to solve the problems of complex and costly drive device structure of the damper in existing washing machines with drying function, failure of the damper to automatically reset in the event of power failure or malfunction, resulting in safety hazards, and underutilization of the power of the inner drum drive motor, leading to waste of power resources.

[0004] This invention provides a garment processing device, including a drum assembly, a drive motor, a drying duct, and a transmission assembly; the drum assembly includes an outer drum and an inner drum, the outer drum having an air inlet and an air outlet, and the inner drum rotatably disposed within the outer drum; the output shaft of the drive motor is drivenly connected to the inner drum for driving the inner drum to rotate; the drying duct connects the air inlet and the air outlet, and the drying duct has a movable damper; the transmission assembly includes:

[0005] The rotary wheel is coaxially arranged with the output shaft;

[0006] A clutch is disposed between the impeller and the output shaft; the clutch has a first state in which the impeller rotates synchronously with the output shaft and a second state in which the impeller does not rotate with the output shaft;

[0007] The traction component is a flexible rope-like member; one end of the traction component is wound around the rotating wheel, and the other end is connected to the damper drive, which is used to drive the damper to move when the rotating wheel rotates, thereby opening or closing the drying air duct and / or adjusting the flow area of ​​the drying air duct.

[0008] Further optionally, the damper is rotatably disposed within the drying duct via a rotating shaft, and an elastic element is provided between the rotating shaft and the side wall of the drying duct; the elastic element is configured such that when the traction force of the traction member is less than the elastic force of the elastic element, the damper is driven to move to the initial position, thereby disengaging the drying duct.

[0009] Further optionally, the clutch is configured to automatically switch between the first state and the second state when the speed of the drive motor changes and / or the direction of the speed changes and / or the damper moves to its limit position.

[0010] Further optionally, the clutch is configured to:

[0011] When the output shaft rotates in a preset direction and the speed of the output shaft increases from a first speed to a second speed, the clutch automatically switches from the second state to the first state, the wheel rotates with the output shaft and the traction member is in a tensioned state;

[0012] When the damper moves and fully opens the drying air duct, the clutch automatically switches from the first state to the second state;

[0013] When the output shaft rotates in a direction opposite to the preset direction or stops rotating, the clutch automatically switches from the second state to the first state, the wheel rotates with the output shaft and the traction member is in a relaxed state, and then the damper can move under the action of the elastic member and disconnect the drying air duct.

[0014] Wherein, the speed difference obtained by subtracting the first speed from the second speed is greater than a preset value; when the drying air duct is fully open, the flow area of ​​the drying air duct reaches its maximum.

[0015] Optionally, the garment processing equipment includes a washing mode and a drying mode.

[0016] When the garment processing device is in the washing mode, the clutch is in the second state, and the damper disconnects the drying air duct;

[0017] When the garment processing device switches from the washing mode to the drying mode, the clutch switches from the second state to the first state, and the damper opens the drying air duct;

[0018] When the garment processing equipment is in a stopped state, the damper disconnects the drying air duct.

[0019] Further optionally, along the axial direction of the wheel, the wheel is provided with a plurality of winding segments, at least two of the plurality of winding segments having different outer diameters;

[0020] According to the movement requirements of the damper, one end of the traction member can be wound around the corresponding winding segment.

[0021] Further optionally, the drying air duct includes a main air duct, an air inlet duct, and an air outlet duct, wherein the main air duct is provided with a main air duct inlet and a main air duct outlet; the air inlet duct connects the main air duct outlet and the air inlet, and the air outlet duct connects the main air duct inlet and the air outlet;

[0022] The damper includes an air outlet damper and an air inlet damper. The air outlet damper is located at the outlet of the main air duct and is used to open and close the outlet of the main air duct and / or adjust the opening degree of the outlet of the main air duct. The air inlet damper is located at the inlet of the main air duct and is used to open and close the inlet of the main air duct and / or adjust the opening degree of the inlet of the main air duct.

[0023] The traction component includes an outward traction component and an inward traction component. One end of both the outward traction component and the inward traction component is wound around the rotating wheel. The other end of the outward traction component is drivenly connected to the air outlet door and is used to drive the air outlet door to move when the rotating wheel rotates. The other end of the inward traction component is drivenly connected to the air inlet door and is used to drive the air inlet door to move when the rotating wheel rotates.

[0024] Further optionally, the cylindrical assembly includes a first cylindrical assembly and a second cylindrical assembly; the outer cylinder and inner cylinder of the first cylindrical assembly are respectively a first outer cylinder and a first inner cylinder, and the outer cylinder and inner cylinder of the second cylindrical assembly are respectively a second outer cylinder and a second inner cylinder; the air inlet and air outlet of the first outer cylinder are respectively a first air inlet and a first air outlet, and the air inlet and air outlet of the second outer cylinder are respectively a second air inlet and a second air outlet;

[0025] The main air duct inlet includes a first main air duct inlet and a second main air duct inlet; the main air duct outlet includes a first main air duct outlet and a second main air duct outlet; the air intake duct includes a first air intake duct and a second air intake duct; the air outlet duct includes a first air outlet duct and a second air outlet duct.

[0026] The first air inlet duct connects the first main air duct outlet and the first air inlet; the second air inlet duct connects the second main air duct outlet and the second air inlet; the first air outlet duct connects the first main air duct inlet and the first air outlet; the second air outlet duct connects the second main air duct inlet and the second air outlet.

[0027] The main air duct, the first air inlet duct, the first outer cylinder, the first inner cylinder, and the first air outlet duct are connected to form a first drying circuit, and the main air duct, the second air inlet duct, the second outer cylinder, the second inner cylinder, and the second air outlet duct are connected to form a second drying circuit.

[0028] Further optionally, the air inlets of the first main air duct inlet and the second main air duct inlet are respectively a first air inlet door and a second air inlet door, and the air outlets of the first main air duct outlet and the second main air duct outlet are respectively a first air outlet door and a second air outlet door;

[0029] The transmission assembly includes a first transmission assembly and a second transmission assembly. The first transmission assembly has a first rotating wheel, a first traction output member, and a first traction input member, respectively. The second transmission assembly has a second rotating wheel, a second traction output member, and a second traction input member, respectively.

[0030] One end of the first outward traction member and the first inward traction member are both wound around the first rotating wheel. The other end of the first outward traction member is driven to the first air outlet door, and the other end of the first inward traction member is driven to the first air inlet door. One end of the second outward traction member and the second inward traction member are both wound around the second rotating wheel. The other end of the second outward traction member is driven to the second air outlet door, and the other end of the second inward traction member is driven to the second air inlet door.

[0031] Further optionally, the drive motor includes a first drive motor and a second drive motor, and the output shafts of the first drive motor and the second drive motor are respectively driven connected to the first inner cylinder and the second inner cylinder;

[0032] The first rotating wheel and the output shaft of the first drive motor are coaxially arranged, and the clutch between the first rotating wheel and the output shaft of the first drive motor is a first clutch; the second rotating wheel and the output shaft of the second drive motor are coaxially arranged, and the clutch between the second rotating wheel and the output shaft of the second drive motor is a second clutch.

[0033] The first drive motor can coordinate with the first air inlet door and the first air outlet door through the first transmission component, thereby turning the first drying circuit on or off, or adjusting the flow area of ​​the first drying circuit.

[0034] The second drive motor can coordinate with the second transmission component to control the second air inlet door and the second air outlet door, thereby turning the second drying circuit on or off, or adjusting the flow area of ​​the second drying circuit.

[0035] Further optionally, the main air duct is formed by connecting two evaporator boxes and a fan. The two evaporator boxes are equipped with an evaporator and a condenser. The evaporator is used to dehumidify the flowing air, the condenser is used to heat the flowing air, and the fan is used to provide power to the flowing air.

[0036] An outlet protective shell is provided between the rotor and the main air duct outlet, and the outlet protective shell forms an outlet channel; the outlet traction member extends from the rotor to the main air duct outlet along the outlet channel, and along the extension direction of the outlet channel, a plurality of outlet guide wheels are arranged sequentially in the outlet channel for guiding the outlet traction member;

[0037] An inlet protective shell is provided between the rotor and the main air duct inlet, and the inlet protective shell forms an inlet channel; the inlet traction member extends from the rotor to the main air duct inlet along the inlet channel, and along the extension direction of the inlet channel, a plurality of inlet guide wheels are arranged sequentially in the inlet channel for guiding the inlet traction member.

[0038] Compared with the prior art, the main advantages of the present invention are as follows:

[0039] (1) By mechanically linking the drive motor of the damper and the drive motor of the inner cylinder, the damper and the inner cylinder share a drive motor, eliminating the need for the motor or electromagnetic drive device for driving the damper in the prior art, simplifying the equipment structure and reducing manufacturing costs; the output shaft of the drive motor is diverted to drive the damper through the transmission component, realizing the full utilization of power resources, improving the overall energy efficiency ratio of the equipment, and avoiding the energy consumption of setting up an additional power source.

[0040] (2) The clutch control wheel is used to control the engagement and disengagement state of the drive motor output shaft, so that the switching action of the damper can be reliably triggered by the rotation of the drive motor, reducing the risk of damper control failure due to the failure of the electronic control unit or independent actuator;

[0041] (3) Since the transmission component is a purely mechanical structure, it does not rely on a controller or independent drive device with continuous power supply; in the event of a sudden power outage or failure of the main control system, the transmission component can still respond to the rotation of the motor to realize the reset or switching of the damper, thereby improving the safety and operational stability of the equipment.

[0042] (4) The rotation of the wheel is converted into the linear or swing motion of the damper by the flexible traction component. The transmission method is simple and direct, easy to arrange, and can effectively transmit power to ensure that the damper can move accurately to the position of opening, closing or adjusting the flow area of ​​the drying air duct. Attached Figure Description

[0043] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0044] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0045] Figure 1 This is a schematic diagram of an embodiment of the clothing processing equipment provided by the present invention;

[0046] Figure 2 A schematic diagram of an embodiment of the garment processing device provided by the present invention, wherein the first main air duct outlet and the first main air duct inlet are both open and the second main air duct outlet and the second main air duct inlet are both closed;

[0047] Figure 3 A schematic diagram of an embodiment of the clothing processing device provided by the present invention, wherein the first main air duct outlet, the second main air duct outlet, the first main air duct inlet, and the second main air duct inlet are all in the open state, the opening degree of the first main air duct outlet is greater than the opening degree of the second main air duct outlet, and the opening degree of the first main air duct inlet is greater than the opening degree of the second main air duct inlet.

[0048] Figure 4a A schematic diagram of the structure of an embodiment of the clutch in the first state provided by the present invention;

[0049] Figure 4b A schematic diagram of the structure of an embodiment of the clutch in the second state provided by the present invention;

[0050] In the picture:

[0051] 11-First inner cylinder; 12-Second inner cylinder;

[0052] 21-First air inlet duct; 22-Second air inlet duct; 23-First air outlet duct; 24-Second air outlet duct;

[0053] 3-Main air duct; 311-First main air duct inlet; 312-Second main air duct inlet; 321-First main air duct outlet; 322-Second main air duct outlet; 331-First air inlet door; 332-Second air inlet door; 341-First air outlet door; 342-Second air outlet door;

[0054] 41-First transmission assembly; 411-First rotating wheel; 412-First outgoing traction member; 413-First incoming traction member; 42-Second transmission assembly; 421-Second rotating wheel; 422-Second outgoing traction member; 423-Second incoming traction member;

[0055] 51 - Entering the protective housing; 511 - Entering the passageway; 52 - Exiting the protective housing; 521 - Exiting the passageway;

[0056] 6-Clutch; 61-Outer ring; 62-Inner ring; 63-Contact element. Detailed Implementation

[0057] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0059] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0060] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0061] In existing washing machines with drying functions, the dampers used to open or close the drying air duct need to be driven by an independent motor or electromagnetic control device, which leads to a complex system structure and increased costs. At the same time, in the event of a sudden power outage or control system failure, the dampers cannot automatically reset, posing a safety hazard. The motor that drives the inner drum is only used to drive the inner drum to rotate, and its power is not fully utilized, resulting in a waste of power resources.

[0062] This invention creatively provides a garment processing device, including an outer drum, an inner drum, a drive motor, a drying duct, a rotating wheel, a clutch, and a traction component; the inner drum is rotatably disposed inside the outer drum, and the output shaft of the drive motor is drivenly connected to the inner drum; the drying duct and the outer drum are connected to form a drying circuit, and a damper is provided in the drying duct; the clutch is disposed between the rotating wheel and the output shaft, and has a first state in which the rotating wheel rotates synchronously with the output shaft and a second state in which the rotating wheel does not rotate with the output shaft; the traction component is a flexible rope-like component, one end of which is wound around the rotating wheel, and the other end is drivenly connected to the damper, which can drive the damper to move when the rotating wheel rotates, and the damper can control the opening or closing of the drying duct and / or adjust the flow area of ​​the drying duct;

[0063] By mechanically linking the drive motors of the damper and the inner cylinder, the damper and the inner cylinder can share a single drive motor, simplifying the equipment structure and reducing manufacturing costs. The output shaft of the drive motor is split through a transmission assembly to drive the damper, achieving full utilization of power resources, improving the overall energy efficiency ratio of the equipment, and avoiding the energy consumption of setting up an additional power source.

[0064] Example 1

[0065] like Figures 1 to 4b As shown, this embodiment provides a garment processing device, including a housing, a drum assembly, a drive motor, a drying duct, and a transmission assembly. The drum assembly is disposed inside the housing and includes an outer drum and an inner drum. The outer drum has an air inlet and an air outlet, and the inner drum is rotatably disposed inside the outer drum. The drive motor is disposed outside the outer drum and below the bottom of the outer drum. The output shaft of the drive motor is driven and connected to the inner drum to drive the inner drum to rotate. The drying duct connects the air inlet and the air outlet, and a movable damper is provided inside the drying duct. Specifically, the outer drum has an air inlet at its opening and an air outlet on its wall. The inner drum has a through hole that connects the inner drum and the outer drum, and the inner drum is used to hold garments. When the damper is controlled to move, it can open or close the drying duct, or adjust the flow area of ​​the drying duct.

[0066] The transmission components include:

[0067] The rotary wheel is coaxially arranged with the output shaft;

[0068] Clutch 6 is disposed between the rotating wheel and the output shaft; clutch 6 has a first state in which the rotating wheel rotates synchronously with the output shaft and a second state in which the rotating wheel does not rotate with the output shaft; that is, when clutch 6 is in the first state, the rotating wheel and the output shaft are coaxially connected and can rotate synchronously; when clutch 6 is in the second state, the rotating wheel and the output shaft are separated, the rotating wheel does not rotate, and the output shaft rotates.

[0069] The traction component is a flexible rope-like member; one end of the traction component is wound around the rotating wheel, and the other end is connected to the damper drive, used to drive the damper to move when the rotating wheel rotates, thereby opening or closing the drying air duct, and / or adjusting the flow area of ​​the drying air duct; specifically, the traction component is a traction rope, traction wire, or traction belt; when the rotating wheel rotates in a preset direction, one end of the traction component can be wound around the rotating wheel, thereby putting the traction component in a taut state, and the traction component can drive the damper to move; when the rotating wheel rotates in the opposite direction to the preset direction, one end of the traction component can gradually separate from the rotating wheel, thereby putting the traction component in a relaxed state; preferably, the traction component is a stainless steel wire;

[0070] By switching the clutch 6 between the first and second states, the drive motor can drive the damper to move, thereby opening or closing the drying duct and / or adjusting the flow area of ​​the drying duct.

[0071] In this way, by using the same drive motor to drive both the inner drum and the damper, the separate motor or electromagnetic drive device for driving the damper in existing technologies is eliminated, simplifying the equipment structure and reducing manufacturing costs. Simultaneously, it fully utilizes the power resources of the drive motor, improving the overall energy efficiency ratio of the equipment. It is suitable for household and commercial laundry equipment that requires automatic adjustment of the direction and flow rate of the drying airflow according to the washing program, and prioritizes low cost, high reliability, and low power consumption. It is particularly suitable for the following typical application scenarios:

[0072] (1) Single-drum washing machine (mainstream household market): During the washing stage, the drying air duct needs to be disconnected; during the drying stage, the drying air duct needs to be open.

[0073] (2) Twin-drum washing machine (high-end home / apartment rental market): It washes two batches of clothes at the same time (such as underwear / outerwear, dark / light colors), and the drying circuits of the two drums need to be controlled independently to avoid cross-contamination;

[0074] (3) Washer-dryer combo with drying function (mainstream high-end category): When users select the "wash + dry" program, the moisture needs to be efficiently discharged during the dehydration stage and the hot air needs to be accurately introduced during the drying stage; replacing the complex damper control system of traditional solenoid valve + temperature and humidity sensor, avoiding the risk of "damper jamming → drying failure → clothes overheating" caused by sensor failure.

[0075] The following describes the structure required for damper reset. The damper is rotatably mounted inside the drying duct via a rotating shaft, and an elastic element is provided between the rotating shaft and the side wall of the drying duct. The elastic element is configured such that when the traction force of the traction component is less than the elastic force of the elastic element, the damper is driven to move to the initial position, causing the drying duct to be disconnected. That is, when the rotating wheel rotates in the opposite direction to the preset direction, the traction component is relaxed, and under the action of the elastic element, the damper rotates to the initial position, thereby disconnecting the drying duct. This ensures that the damper can automatically reset when the drive motor is running at low speed or stopped, improving the safety and stability of equipment operation, avoiding risks such as overheating, moisture accumulation, and odor, and enhancing product reliability and compliance.

[0076] Specifically, the elastic element is a torsion spring; elastic elements are provided at both ends of the axial direction of the rotating shaft, resulting in a compact structure and stable torque.

[0077] Furthermore, a limiting component is provided between the damper and the side wall of the drying duct to limit the rotation angle of the damper, so as to ensure that the rotation position of the damper is accurate and consistent.

[0078] Therefore, when the damper is rotatably installed in the drying duct, the damper rotates under the combined action of the traction component and the elastic component, thereby opening or closing the drying duct. When the traction force applied by the traction component to the rotating shaft is greater than or equal to the elastic force applied by the elastic component to the rotating shaft, the damper rotates in the direction that opens the drying duct. When the traction force applied by the traction component to the rotating shaft is less than the elastic force applied by the elastic component to the rotating shaft, the damper rotates in the direction that closes the drying duct.

[0079] The following describes the switching of clutch 6 between two states. Clutch 6 is configured to automatically switch between the first state and the second state when the speed of the drive motor changes and / or the direction of the speed changes and / or the damper moves to the limit position; that is, when the speed and direction of the drive motor change, clutch 6 can automatically switch between the first state and the second state to realize the opening and closing of the drying air duct.

[0080] Changes in the speed and direction of the drive motor or inner cylinder are used as trigger signals for the switching state of clutch 6, thereby enabling automatic switching of clutch 6.

[0081] Furthermore, clutch 6 is configured as follows:

[0082] When the output shaft rotates in a preset direction and the speed of the output shaft increases from the first speed to the second speed, the clutch 6 automatically switches from the second state to the first state, the wheel rotates with the output shaft and the traction component is in a tensioned state;

[0083] When the damper moves and the drying air duct is fully opened, the clutch 6 automatically switches from the first state to the second state.

[0084] When the output shaft rotates in the opposite direction to the preset direction or stops rotating, the clutch 6 automatically switches from the second state to the first state, the wheel rotates with the output shaft and the traction component is in a relaxed state, and then the damper can move under the action of the elastic component and disconnect the drying air duct.

[0085] Among them, the speed difference obtained by subtracting the first speed from the second speed is greater than the preset value; when the drying air duct is fully open, the flow area of ​​the drying air duct reaches its maximum.

[0086] Specifically, the garment processing equipment has washing and drying modes.

[0087] When the garment processing equipment is in washing mode, clutch 6 is in the second state, and the elastic element causes the damper to disconnect the drying air duct.

[0088] When the garment processing equipment switches from washing mode to drying mode, clutch 6 switches from the second state to the first state, and the rotating wheel drives the traction component to move, so that the air door opens the drying air duct;

[0089] When the garment processing equipment is in a stopped state, the damper disconnects the drying air duct;

[0090] The inner drum rotates at a lower speed during the washing mode than during the drying mode.

[0091] The following example, with two air dampers in the drying air duct, further illustrates the process. The drying air duct includes a main air duct 3, an air inlet duct, and an air outlet duct. The main air duct 3 has a main air duct inlet and a main air duct outlet. The air inlet duct connects the main air duct outlet and the air inlet, and the air outlet duct connects the main air duct inlet and the air outlet.

[0092] The damper includes an outlet damper and an inlet damper. The outlet damper is located at the outlet of the main air duct and is used to open and close the outlet of the main air duct and / or adjust the opening of the outlet of the main air duct. The inlet damper is located at the inlet of the main air duct and is used to open and close the inlet of the main air duct and / or adjust the opening of the inlet of the main air duct.

[0093] The traction component includes an outward traction component and an inward traction component. One end of both the outward traction component and the inward traction component is wound around the rotating wheel. The other end of the outward traction component is connected to the air outlet door via a drive mechanism, and is used to drive the air outlet door to move when the rotating wheel rotates. The other end of the inward traction component is connected to the air inlet door via a drive mechanism, and is used to drive the air inlet door to move when the rotating wheel rotates.

[0094] By switching the clutch 6 between the first and second states, the drive motor can drive the air outlet and air inlet to move, thereby opening and closing the main air duct outlet and main air duct inlet, and / or adjusting the opening degree of the main air duct outlet and main air duct inlet; that is, the same drive motor drives the movement of two air doors, eliminating the need for two drive motors and complex linkage mechanisms; by controlling the opening and closing of the main air duct outlet and main air duct inlet, and / or adjusting the opening degree of the main air duct outlet and main air duct inlet, the airflow distribution and heat energy utilization efficiency during the drying process are optimized.

[0095] Specifically, the main air duct 3 is formed by connecting two evaporator boxes and a fan. The two evaporator boxes are equipped with an evaporator and a condenser. The evaporator is used to dehumidify the airflow, the condenser is used to heat the airflow, and the fan is used to provide power to the airflow.

[0096] Along the axial direction of the rotor, the rotor is provided with multiple winding sections. One end of the outgoing traction component and the incoming traction component are respectively wound around different winding sections of the rotor to avoid interference between the outgoing traction component and the incoming traction component when the rotor rotates, thereby affecting the rotation of the air outlet and the air inlet. When the rotor rotates in a preset direction, one end of the outgoing traction component and the incoming traction component gradually winds around the rotor, so that the outgoing traction component and the incoming traction component are both in a taut state. As a result, the air outlet moves in the direction that opens the main air duct outlet. When the main air duct outlet is in the open state, it can be at any opening degree or it can be fully opened. The air inlet moves in the direction that opens the main air duct inlet. When the main air duct inlet is in the open state, it can be at any opening degree or it can be fully opened.

[0097] When the impeller rotates in the opposite direction to the preset direction, one end of both the outgoing traction component and the incoming traction component gradually moves away from the impeller, so that both the outgoing traction component and the incoming traction component are in a relaxed state. Then, the air outlet door moves in the direction that closes the main air duct outlet until the main air duct outlet is completely closed; the air inlet door moves in the direction that closes the main air duct inlet until the main air duct inlet is completely closed.

[0098] The following description uses a garment processing device comprising two cylindrical assemblies as an example. The cylindrical assembly includes a first cylindrical assembly and a second cylindrical assembly, which are arranged side by side in the horizontal direction. The outer cylinder and inner cylinder of the first cylindrical assembly are respectively a first outer cylinder and a first inner cylinder 11. The first inner cylinder 11 is rotatably disposed inside the first outer cylinder, and the air inlet and air outlet of the first outer cylinder are respectively a first air inlet and a first air outlet. The outer cylinder and inner cylinder of the second cylindrical assembly are respectively a second outer cylinder and a second inner cylinder 12. The second inner cylinder 12 is rotatably disposed inside the second outer cylinder, and the air inlet and air outlet of the second outer cylinder are respectively a second air inlet and a second air outlet.

[0099] The main air duct inlet includes the first main air duct inlet 311 and the second main air duct inlet 312, and the main air duct outlet includes the first main air duct outlet 321 and the second main air duct outlet 322; the air intake duct includes the first air intake duct 21 and the second air intake duct 22, and the air outlet duct includes the first air outlet duct 23 and the second air outlet duct 24.

[0100] The first main air duct outlet 321, the first air inlet, and the first air inlet duct 21 are correspondingly arranged, with the first air inlet duct 21 connecting the first main air duct outlet 321 and the first air inlet; the first main air duct inlet 311, the first air outlet, and the first air outlet duct 23 are correspondingly arranged, with the first air outlet duct 23 connecting the first main air duct inlet 311 and the first air outlet; thus, the main air duct 3, the first air inlet duct 21, the first outer cylinder, the first inner cylinder 11, and the first air outlet duct 23 are connected to form a first drying circuit; when the airflow circulates in the first drying circuit, it can dry the clothes in the first inner cylinder 11; by controlling the opening and closing of the first main air duct inlet 311 and the first main air duct outlet 321, the conduction or disconnection of the first drying circuit can be controlled;

[0101] The second main air duct outlet 322, the second air inlet, and the second air inlet duct 22 are correspondingly arranged, with the second air inlet duct 22 connecting the second main air duct outlet 322 and the second air inlet; the second main air duct inlet 312, the second air outlet, and the second air outlet duct 24 are correspondingly arranged, with the second air outlet duct 24 connecting the second main air duct inlet 312 and the second air outlet; thus, the main air duct 3, the second air inlet duct 22, the second outer cylinder, the second inner cylinder 12, and the second air outlet duct 24 are connected to form a second drying circuit; when the airflow circulates in the second drying circuit, it can dry the clothes in the second inner cylinder 12; by controlling the opening and closing of the second main air duct inlet 312 and the second main air duct outlet 322, the conduction or disconnection of the second drying circuit can be controlled;

[0102] Specifically, when the first cylinder assembly needs to be dried, the first drying circuit is turned on; when the second cylinder assembly needs to be dried, the second drying circuit is turned on; when both the first and second cylinder assemblies need to be dried, both the first and second drying circuits are turned on.

[0103] The main air duct 3, the first air inlet duct 21, and the second air inlet duct 22 form a "T" or "Y" shape, and the main air duct 3, the first air outlet duct 23, and the second air outlet duct 24 form a "T" or "Y" shape.

[0104] Furthermore, the air inlets of the first main air duct inlet 311 and the second main air duct inlet 312 are respectively a first air inlet 331 and a second air inlet 332, and the air outlets of the first main air duct outlet 321 and the second main air duct outlet 322 are respectively a first air outlet 341 and a second air outlet 342; that is, the first air inlet 331 is rotatably installed at the first main air duct inlet 311, and the first air outlet 341 is rotatably installed at the first main air duct outlet 321; by controlling the first air inlet 331 and the first air outlet 342... Rotating the second air inlet 332 or the second air outlet 342 can control the opening or closing of the first drying circuit; the second air inlet 332 is rotatably disposed at the inlet 312 of the second main air duct, and the second air outlet 342 is rotatably disposed at the outlet 322 of the second main air duct; by controlling the rotation of the second air inlet 332 and the second air outlet 342, the opening or closing of the second drying circuit can be controlled; thus, it is possible to dry only the clothes in the first inner drum 11, only the clothes in the second inner drum 12, or simultaneously dry the clothes in the first inner drum 11 and the second inner drum 12.

[0105] The transmission assembly includes a first transmission assembly 41 and a second transmission assembly 42. The first transmission assembly 41 has a first rotating wheel 411, a first outgoing traction member 412, and a first incoming traction member 413, respectively. The first outgoing traction member 412 is correspondingly arranged with a first air outlet 341, and the first incoming traction member 413 is correspondingly arranged with a first air inlet 331. One end of the first outgoing traction member 412 and the first incoming traction member 413 are both wound around the first rotating wheel 411. The other end of the first outgoing traction member 412 is connected to the first air outlet 341, and the other end of the first incoming traction member 413 is connected to the first air inlet 331. When the first rotating wheel 411 rotates in a preset direction, the first... When the first traction member 412 is in a tensioned state, it drives the first air outlet 341 to rotate, thereby opening the first main air duct outlet 321; when the first inlet traction member 413 is in a tensioned state, it drives the first inlet air door 331 to rotate, thereby opening the first main air duct inlet 311; when the first rotating wheel 411 rotates in the opposite direction to the preset direction, the first traction member 412 is in a relaxed state, thereby causing the first air outlet 341 to rotate under the action of the elastic member at the first air outlet 341, thereby closing the first main air duct outlet 321; when the first inlet traction member 413 is in a relaxed state, thereby causing the first inlet air door 331 to rotate under the action of the elastic member at the first inlet air door 331, thereby closing the first main air duct inlet 311.

[0106] The second transmission assembly 42 has a rotating wheel 421, an outgoing traction member 422, and an incoming traction member 423, respectively. The second outgoing traction member 422 and the second air outlet 342 are respectively arranged accordingly, and the second incoming traction member 423 and the second air inlet 332 are respectively arranged accordingly. One end of the second outgoing traction member 422 and the second incoming traction member 423 are both wound around the second rotating wheel 421. The other end of the second outgoing traction member 422 is connected to the second air outlet 342, and the other end of the second incoming traction member 423 is connected to the second air inlet 332.

[0107] When the second rotating wheel 421 rotates in the preset direction, the second outward traction member 422 is in a tensioned state, which in turn drives the second outlet damper 342 to rotate, opening the outlet 322 of the second main air duct; the second inward traction member 423 is in a tensioned state, which in turn drives the second inward damper 332 to rotate, opening the inlet 312 of the second main air duct; when the second rotating wheel 421 rotates in the opposite direction to the preset direction, the second outward traction member 422 is in a relaxed state, which in turn drives the second outlet damper 342 to rotate under the action of the elastic member at the second outlet damper 342, closing the outlet 322 of the second main air duct; the second inward traction member 423 is in a relaxed state, which in turn drives the second inward damper 332 to rotate under the action of the elastic member at the second inward damper 332, closing the inlet 312 of the second main air duct.

[0108] The drive motor includes a first drive motor and a second drive motor. The output shafts of the first drive motor and the second drive motor are respectively driven to the first inner cylinder 11 and the second inner cylinder 12. That is, the output shaft of the first drive motor is driven to the first inner cylinder 11 and can drive the first inner cylinder 11 to rotate; the output shaft of the second drive motor is driven to the second inner cylinder 12 and can drive the second inner cylinder 12 to rotate.

[0109] The first rotating wheel 411 and the output shaft of the first drive motor are coaxially arranged. The clutch 6 between the first rotating wheel 411 and the output shaft of the first drive motor is the first clutch. By switching the first clutch between the first state and the second state, the first drive motor can drive the first air outlet 341 and the first air inlet 331 to move, thereby opening and closing the first main air duct outlet 321 and the first main air duct inlet 311, and / or adjusting the opening degree of the first main air duct outlet 321 and the first main air duct inlet 311. When the first clutch is in the first state, the first rotating wheel 411 and the output shaft of the first drive motor rotate synchronously. When the first clutch is in the second state, the first rotating wheel 411 and the output shaft of the first drive motor are separated, the first rotating wheel 411 is stationary, and the output shaft of the first drive motor rotates.

[0110] The second rotating wheel 421 and the output shaft of the second drive motor are coaxially arranged. The clutch 6 between the second rotating wheel 421 and the output shaft of the second drive motor is the second clutch. By switching the second clutch between the first state and the second state, the second drive motor can drive the second air outlet 342 and the second air inlet 332 to move, thereby opening and closing the second main air duct outlet 322 and the second main air duct inlet 312, and / or adjusting the opening degree of the second main air duct outlet 322 and the second main air duct inlet 312. When the second clutch is in the first state, the second rotating wheel 421 and the output shaft of the second drive motor rotate synchronously. When the second clutch is in the second state, the second rotating wheel 421 and the output shaft of the second drive motor are separated, the second rotating wheel 421 is stationary, and the output shaft of the second drive motor rotates.

[0111] The first drive motor can coordinate with the first transmission component 41 to control the first air inlet door 331 and the first air outlet door 341, and can control the opening and closing and the opening degree of the first main air duct inlet 311 and the first main air duct outlet 321, thereby enabling the first drying circuit to be connected or disconnected, or adjusting the flow area of ​​the first drying circuit.

[0112] The second drive motor can coordinate with the second transmission component 42 to control the second air inlet door 332 and the second air outlet door 342, thereby controlling the opening and closing of the second main air duct inlet 312 and the opening degree of the second main air duct outlet 322, thus enabling the second drying circuit to be connected or disconnected, or adjusting the flow area of ​​the second drying circuit.

[0113] The following describes the setup of the traction component. A protective shell 52 is provided between the rotating wheel and the main air duct outlet, and the protective shell 52 forms an outlet channel 521. The traction component extends from the rotating wheel to the main air duct outlet along the outlet channel 521. Along the extension direction of the outlet channel 521, multiple sequentially arranged guide wheels are provided in the outlet channel 521 to guide the traction component.

[0114] An inlet protective shell 51 is provided between the rotor and the main air duct inlet, and the inlet protective shell 51 forms an inlet channel 511; the inlet traction component extends from the rotor to the main air duct inlet along the inlet channel 511, and along the extension direction of the inlet channel 511, a plurality of inlet guide wheels are arranged in sequence to guide the inlet traction component.

[0115] Specifically, the housing contains a first installation area and a second installation area arranged opposite to each other. The first cylinder assembly, the first drive motor, the first air inlet duct 21, the first air outlet duct 23, and the first transmission assembly 41 are all located in the first installation area. The first transmission assembly 41 corresponds to the first outlet protective shell 52 and the first inlet protective shell 51, which are respectively the first outlet protective shell and the first inlet protective shell. The outlet channel 521 formed by the first outlet protective shell is the first outlet channel, and the inlet channel 511 formed by the first inlet protective shell is the first inlet channel. One end of the first outlet traction member 412 is wrapped around the first rotating wheel 411, and the other end passes through the first outlet channel to the outlet 321 of the first main air duct and is connected to the first air outlet door 341. The guide wheel in the first outlet channel guides and limits the first outlet traction member 412. One end of the first inlet traction member 413 is wrapped around the first rotating wheel 411, and the other end passes through the first inlet channel to the inlet 311 of the first main air duct and is connected to the first air inlet door 331. The guide wheel in the first inlet channel guides and limits the first inlet traction member 413.

[0116] The second cylinder assembly, the second drive motor, the second air inlet duct 22, the second air outlet duct 24, and the second transmission assembly 42 are all located in the second installation area. The second transmission assembly 42 corresponds to the outlet protective shell 52 and the inlet protective shell 51, which are the second outlet protective shell and the second inlet protective shell, respectively. The outlet channel 521 formed by the second outlet protective shell is the second outlet channel, and the inlet channel 511 formed by the second inlet protective shell is the second inlet channel. One end of the second outlet traction member 422 is wrapped around the second rotating wheel 421, and the other end passes through the second outlet channel to the outlet 322 of the second main air duct and is connected to the second air outlet door 342. The guide wheel in the second outlet channel guides and limits the second outlet traction member 422. One end of the second inlet traction member 423 is wrapped around the second rotating wheel 421, and the other end passes through the second inlet channel to the inlet 312 of the second main air duct and is connected to the second air inlet door 332. The guide wheel in the second inlet channel guides and limits the second inlet traction member 423.

[0117] The clutch 6 includes an outer ring 61, an inner ring 62, and a contact element 63. The outer ring 61 is connected to the output shaft of the drive motor and can rotate with the output shaft of the drive motor. The inner ring 62 is connected to the impeller and can drive the impeller to rotate. One end of the contact element 63 is disposed on the inner ring 62, and the other end is optionally in contact with the outer ring 61. When the other end of the contact element 63 is in contact with the outer ring 61, the clutch 6 is in a first state, and the outer ring 61 can drive the inner ring 62 to rotate through the contact element 63, thereby causing the impeller to rotate. When the other end of the contact element 63 is not in contact with the outer ring 61, the clutch 6 is in a second state, the inner ring 62 and the impeller are stationary, and the outer ring 61 rotates with the output shaft.

[0118] In summary, the output shaft of the drive motor is connected to the inner drum, the impeller is connected to the output shaft of the drive motor via clutch 6, and the impeller and the damper are connected via a traction component. The traction component and the elastic component work together on the damper. By switching the clutch 6 between the first and second states, the drying duct can be opened or closed. When the clutch 6 is in the first state, the traction force of the traction component is greater than or equal to the elastic force of the elastic component, causing the damper to move and opening the drying duct. When the clutch 6 is in the second state, the traction force of the traction component is less than the elastic force of the elastic component, causing the damper to move and closing the drying duct under the action of the elastic component. When the garment processing equipment switches between different working modes, the drying duct can be switched between open and closed accordingly, without the need for an additional control system, thus improving the operational stability and safety of the equipment.

[0119] Example 2

[0120] Based on Example 1, along the axis of the rotating wheel, the rotating wheel is provided with multiple winding sections, and at least two of the multiple winding sections have different outer diameters; if the winding sections are different, the circumference and winding speed of the traction member winding one turn are different, which in turn drive the damper to move at different speeds, and thus open or close the drying air duct at different speeds.

[0121] According to the movement requirements of the damper, one end of the traction component can be wound around the corresponding winding section; this expands the applicability of the wheel, making it suitable for different winding requirements.

[0122] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A laundry treating apparatus, characterized by, The system includes a cylinder assembly, a drive motor, a drying air duct, and a transmission assembly. The cylinder assembly comprises an outer cylinder and an inner cylinder. The outer cylinder has an air inlet and an air outlet, and the inner cylinder is rotatably disposed within the outer cylinder. The output shaft of the drive motor is drivenly connected to the inner cylinder to drive its rotation. The drying air duct connects the air inlet and the air outlet, and a movable damper is provided within the drying air duct. The transmission assembly includes: The rotary wheel is coaxially arranged with the output shaft; A clutch (6) is disposed between the rotating wheel and the output shaft; the clutch (6) has a first state in which the rotating wheel rotates synchronously with the output shaft and a second state in which the rotating wheel does not rotate with the output shaft; The traction component is a flexible rope-like member; one end of the traction component is wound around the rotating wheel, and the other end is connected to the damper drive, which is used to drive the damper to move when the rotating wheel rotates, thereby opening or closing the drying air duct and / or adjusting the flow area of ​​the drying air duct. The clutch (6) is configured to automatically switch between the first state and the second state when the speed of the drive motor changes and / or the direction of the speed changes and / or the damper moves to the limit position. 2.The laundry treating apparatus of claim 1, wherein The damper is rotatably mounted in the drying duct via a rotating shaft, and an elastic element is provided between the rotating shaft and the side wall of the drying duct. The elastic element is configured such that when the traction force of the traction member is less than the elastic force of the elastic element, the damper is driven to move to the initial position, thereby disconnecting the drying duct. 3.The laundry treating apparatus of claim 2, wherein The clutch (6) is configured as follows: When the output shaft rotates in a preset direction and the speed of the output shaft increases from the first speed to the second speed, the clutch (6) automatically switches from the second state to the first state, the wheel rotates with the output shaft and the traction member is in a tensioned state; When the damper moves and the drying air duct is fully opened, the clutch (6) automatically switches from the first state to the second state; When the output shaft rotates in a direction opposite to the preset direction or stops rotating, the clutch (6) automatically switches from the second state to the first state, the wheel rotates with the output shaft and the traction member is in a relaxed state, and then the damper can move under the action of the elastic member and disconnect the drying air duct; Wherein, the speed difference obtained by subtracting the first speed from the second speed is greater than a preset value; when the drying air duct is fully open, the flow area of ​​the drying air duct reaches its maximum.

4. The garment processing equipment according to claim 2, characterized in that, The garment processing equipment is equipped with a washing mode and a drying mode. When the garment processing equipment is in the washing mode, the clutch (6) is in the second state, and the damper disconnects the drying air duct; When the clothing processing device switches from the washing mode to the drying mode, the clutch (6) switches from the second state to the first state, and the damper opens the drying air duct; When the garment processing equipment is in a stopped state, the damper disconnects the drying air duct.

5. The garment processing equipment according to claim 1, characterized in that, Along the axial direction of the rotating wheel, the rotating wheel is provided with a plurality of winding sections, and at least two of the plurality of winding sections have different outer diameters; According to the movement requirements of the damper, one end of the traction member can be wound around the corresponding winding segment.

6. The garment processing apparatus according to any one of claims 1 to 5, characterized in that, The drying air duct includes a main air duct (3), an air inlet duct, and an air outlet duct. The main air duct (3) is provided with a main air duct inlet and a main air duct outlet. The air inlet duct connects the main air duct outlet and the air inlet, and the air outlet duct connects the main air duct inlet and the air outlet. The damper includes an air outlet damper and an air inlet damper. The air outlet damper is located at the outlet of the main air duct and is used to open and close the outlet of the main air duct and / or adjust the opening degree of the outlet of the main air duct. The air inlet damper is located at the inlet of the main air duct and is used to open and close the inlet of the main air duct and / or adjust the opening degree of the inlet of the main air duct. The traction component includes an outward traction component and an inward traction component. One end of both the outward traction component and the inward traction component is wound around the rotating wheel. The other end of the outward traction component is drivenly connected to the air outlet door and is used to drive the air outlet door to move when the rotating wheel rotates. The other end of the inward traction component is drivenly connected to the air inlet door and is used to drive the air inlet door to move when the rotating wheel rotates.

7. The garment processing equipment according to claim 6, characterized in that, The cylindrical assembly includes a first cylindrical assembly and a second cylindrical assembly; the outer cylinder and inner cylinder of the first cylindrical assembly are respectively a first outer cylinder and a first inner cylinder (11), and the outer cylinder and inner cylinder of the second cylindrical assembly are respectively a second outer cylinder and a second inner cylinder (12); the air inlet and air outlet of the first outer cylinder are respectively a first air inlet and a first air outlet, and the air inlet and air outlet of the second outer cylinder are respectively a second air inlet and a second air outlet; The main air duct inlet includes a first main air duct inlet (311) and a second main air duct inlet (312), and the main air duct outlet includes a first main air duct outlet (321) and a second main air duct outlet (322); the air intake duct includes a first air intake duct (21) and a second air intake duct (22), and the air outlet duct includes a first air outlet duct (23) and a second air outlet duct (24); The first air inlet duct (21) connects the first main air duct outlet (321) and the first air inlet, and the second air inlet duct (22) connects the second main air duct outlet (322) and the second air inlet; the first air outlet duct (23) connects the first main air duct inlet (311) and the first air outlet, and the second air outlet duct (24) connects the second main air duct inlet (312) and the second air outlet; The main air duct (3), the first air inlet duct (21), the first outer cylinder, the first inner cylinder (11) and the first air outlet duct (23) are connected to form a first drying circuit, and the main air duct (3), the second air inlet duct (22), the second outer cylinder, the second inner cylinder (12) and the second air outlet duct (24) are connected to form a second drying circuit.

8. The garment processing equipment according to claim 7, characterized in that, The air inlets of the first main air duct inlet (311) and the second main air duct inlet (312) are the first air inlet door (331) and the second air inlet door (332), respectively; and the air outlets of the first main air duct outlet (321) and the second main air duct outlet (322) are the first air outlet door (341) and the second air outlet door (342), respectively. The transmission assembly includes a first transmission assembly (41) and a second transmission assembly (42). The first transmission assembly (41) has a first rotating wheel (411), a first traction output member (412), and a first traction input member (413) as its rotating wheel, traction output member, and traction input member, respectively. The second transmission assembly (42) has a second rotating wheel (421), a second traction output member (422), and a second traction input member (423) as its rotating wheel, traction output member, and traction input member, respectively. One end of the first outgoing traction member (412) and the first incoming traction member (413) are both wound around the first rotating wheel (411). The other end of the first outgoing traction member (412) is driven to the first air outlet (341), and the other end of the first incoming traction member (413) is driven to the first air inlet (331). One end of the second outgoing traction member (422) and the second incoming traction member (423) are both wound around the second rotating wheel (421). The other end of the second outgoing traction member (422) is driven to the second air outlet (342), and the other end of the second incoming traction member (423) is driven to the second air inlet (332).

9. The garment processing equipment according to claim 8, characterized in that, The drive motor includes a first drive motor and a second drive motor, and the output shafts of the first drive motor and the second drive motor are respectively driven connected to the first inner cylinder (11) and the second inner cylinder (12). The first rotating wheel (411) and the output shaft of the first drive motor are coaxially arranged, and the clutch (6) provided between the first rotating wheel (411) and the output shaft of the first drive motor is the first clutch; the second rotating wheel (421) and the output shaft of the second drive motor are coaxially arranged, and the clutch (6) provided between the second rotating wheel (421) and the output shaft of the second drive motor is the second clutch; The first drive motor can coordinate with the first air inlet door (331) and the first air outlet door (341) through the first transmission component (41) to make the first drying circuit open or closed, or adjust the flow area of ​​the first drying circuit. The second drive motor can coordinate with the second transmission component (42) to control the second air inlet door (332) and the second air outlet door (342), thereby turning the second drying circuit on or off, or adjusting the flow area of ​​the second drying circuit.

10. The garment processing equipment according to claim 6, characterized in that, The main air duct (3) is formed by connecting two evaporator boxes and a fan. The two evaporator boxes are equipped with an evaporator and a condenser. The evaporator is used to dehumidify the airflow, the condenser is used to heat the airflow, and the fan is used to provide power to the airflow. An outlet protective shell (52) is provided between the rotor and the main air duct outlet, and the outlet protective shell (52) forms an outlet channel (521); the outlet traction member extends from the rotor to the main air duct outlet along the outlet channel (521), and along the extension direction of the outlet channel (521), a plurality of outlet guide wheels are arranged sequentially in the outlet channel (521) for guiding the outlet traction member; An inlet protective shell (51) is provided between the rotor and the main air duct inlet, and the inlet protective shell (51) forms an inlet channel (511); the inlet traction member extends from the rotor to the main air duct inlet along the inlet channel (511), and along the extension direction of the inlet channel (511), a plurality of inlet guide wheels are arranged in sequence in the inlet channel (511) for guiding the inlet traction member.

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