Clothes drying equipment and control method

Abstract

The invention provides clothes drying equipment and a control method, a drying air duct is communicated with a roller to form a drying flow path, the drying air duct comprises an air inlet duct, an outlet of the air inlet duct is communicated with a drying air inlet, a fan blade cavity is formed at the inlet of the air inlet duct, and a drying fan blade is arranged in each fan blade cavity; an air blocking assembly is arranged at an inlet of the first air inlet duct; when the first driving device drives the M first drying fan blades and the roller to rotate forwards at the same time, the air blocking assemblies open the corresponding first air inlet duct inlets, the second driving device drives the N second drying fan blades to rotate forwards, and drying airflow can enter the air inlet ducts through all the air inlet duct inlets and then enter the roller. When the first driving device drives the M first drying fan blades and the roller to rotate reversely or stop rotating at the same time, the air blocking assemblies seal the corresponding first air inlet duct inlets, the second driving device drives the N second drying fan blades to rotate forwards, drying airflow can enter the air inlet ducts through the second air inlet duct inlets and then enter the roller, the stability of the drying airflow flow is improved, and the drying efficiency is improved. The drying effect is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing processing, and in particular relates to a clothes drying device and a control method. Background Art

[0002] In the prior art, a clothes dryer includes a drum and a drying duct, a drying flow path is formed between the drum and the drying duct, and fan blades are provided in the drying duct, the fan blades provide power for the drying air flow to circulate in the drying flow path, and the drying air flow exchanges heat with the clothes when passing through the drum, so that the moisture in the clothes evaporates; however, the fan blades and the drum share a driving device, and when the driving device is reversed, the high-temperature drying air flow cannot enter the drum, resulting in unstable and small flow of the drying air flow, poor drying effect and low drying efficiency. Summary of the invention

[0003] In view of this, the present invention provides a drying device and a control method to solve the problem that when the driving device in the existing dryer is reversed, the high-temperature drying air flow cannot enter the drum, resulting in unstable and small flow of the drying air flow, poor drying effect and low drying efficiency.

[0004] The present invention provides a clothes drying device, comprising:

[0005] The drum has a drying air outlet at its drum mouth, and a drying air inlet at the rear wall of the drum;

[0006] A drying air duct connected between the drying air inlet and the drying air outlet; the drying air duct includes an air inlet; the air inlet is provided with an air inlet outlet and a plurality of air inlet inlets, the air inlet outlet is connected with the drying air inlet, and the air inlet inlet is used to convey drying airflow to the air inlet; a fan blade cavity is formed at each of the air inlet inlets;

[0007] A plurality of drying blades are provided; the plurality of drying blades are rotatably arranged in the plurality of blade cavities in a one-to-one correspondence; the plurality of drying blades include M first drying blades and N second drying blades, and the air inlet corresponding to the first drying blade is the first air inlet; a movable wind shielding component is provided at each of the first air inlet, and the wind shielding component can be controlled to open or close the corresponding first air inlet;

[0008] a first driving device and a second driving device, wherein the first driving device can drive M first drying blades and the drum to rotate forward or reverse simultaneously; and the second driving device can drive N second drying blades to rotate simultaneously or independently;

[0009] When the first driving device drives the M first drying blades and the drum to rotate forward at the same time, the wind shielding component opens the corresponding first air inlet;

[0010] When the first driving device drives the M first drying blades and the drum to reverse at the same time, or when the first driving device drives the M first drying blades and the drum to stop rotating, the wind shielding component closes the corresponding first air inlet;

[0011] Wherein, M and N are both positive integers, and M≥1, N≥1.

[0012] Further optionally, the first driving device is drivingly connected to the wind shield assembly, and the wind shield assembly is configured as follows: when the first driving device drives the drum to rotate forward, the first driving device can drive the wind shield assembly to open the corresponding first air inlet; when the first driving device drives the drum to rotate reversely or the drum stops rotating, the first driving device can drive the wind shield assembly to close the corresponding first air inlet; or,

[0013] The clothes drying device also includes a third driving device, which is drivingly connected to the wind shield assembly, and the wind shield assembly is configured as follows: when the first driving device drives the drum to rotate forward, the third driving device can drive the wind shield assembly to open the corresponding first air inlet inlet; when the first driving device drives the drum to rotate reversely or stop rotating, the third driving device can drive the wind shield assembly to close the corresponding first air inlet inlet.

[0014] Further optionally, the wind shield assembly includes a plurality of wind shields, which are sequentially arranged along the circumferential direction of the corresponding first air inlet; the plate surface of each wind shield is perpendicular to the center line of the corresponding first air inlet, and each wind shield can be slidably arranged at the corresponding first air inlet;

[0015] When the first driving device drives the plurality of wind shields to move away from the center line of the corresponding first air inlet, the plurality of wind shields open the corresponding first air inlet;

[0016] When the first driving device drives the plurality of wind shields to approach the center line of the corresponding first air inlet, the plurality of wind shields close the corresponding first air inlet.

[0017] Further optionally, M=1, N=1; the first driving device includes a first driving motor, a drum transmission mechanism and a windshield transmission mechanism, the first driving motor includes a first output shaft and a second output shaft, the first output shaft and the drum are connected in driving connection through the drum transmission mechanism; the second output shaft is formed with a first output part and a second output part spaced apart along the axial direction of the second output shaft; the first output part is connected in driving connection with the first drying fan blade, and the second output part is connected in driving connection with the windshield assembly through the windshield transmission mechanism; the windshield transmission mechanism includes a first state, a second state and a third state between the first state and the second state;

[0018] When the windshield transmission mechanism is in the first state, the first drive motor drives the drum and the first drying fan blade to rotate forward, and the windshield assembly fully opens the corresponding first air inlet;

[0019] When the windshield transmission mechanism is in the second state, the first drive motor drives the drum and the first drying fan blade to reverse or stop rotating, and the windshield assembly completely closes the corresponding first air inlet;

[0020] When the windshield transmission mechanism is in the third state, the first drive motor drives the drum and the first drying fan blade to rotate forward or reversely, and the windshield assembly partially opens the corresponding first air inlet.

[0021] Further optionally, the windshield transmission mechanism includes a gear set and a rotating disk, the gear set includes a first gear, a second gear and a third gear, the first gear is drivingly connected to the second output part, the second gear and the third gear are connected through a connecting shaft, and the first gear and the second gear are externally meshed; the rotating disk is rotatably arranged at the inlet of the first air inlet duct, and the rotating disk and the windshield are located on the same side of the inlet of the first air inlet duct; a transmission tooth is formed on the outer edge of the rotating disk, and the transmission tooth is externally meshed with the third gear; when the second output part drives the first gear to rotate, the second gear and the third gear rotate synchronously, and then the rotating disk rotates;

[0022] A through hole is formed on the radial inner side of the rotating disk, and the through hole is connected to the inlet of the first air inlet duct; a slide groove is formed on the axial end surface of the rotating disk close to the wind shield plate and is arranged around the outer side of the through hole, and the slide groove includes an outer circular groove segment, a spiral groove segment and an inner circular groove segment which are coaxially arranged and sequentially connected from the outside to the inside along the radial direction of the rotating disk;

[0023] Each windshield plate is provided with a sliding rod on the side close to the rotating disk, and the extending direction of the sliding rod is perpendicular to the plate surface of the corresponding windshield plate;

[0024] When the windshield transmission mechanism is in the first state, each of the slide bars is in sliding cooperation with the outer circular groove section, the turntable rotates forward along with the first drive motor, and each of the windshields is stationary;

[0025] When the windshield transmission mechanism is in the second state, each of the slide bars is in sliding cooperation with the inner circular groove segment, the turntable rotates in reverse with the first drive motor, and each of the windshields is stationary;

[0026] When the wind shield transmission mechanism is in the third state, each of the sliding rods slides in cooperation with the spiral groove segment; the turntable rotates forward along with the first drive motor, and each of the wind shields slides in a direction away from the center line of the corresponding first air inlet inlet; the turntable rotates reversely along with the first drive motor, and each of the wind shields slides in a direction close to the center line of the corresponding first air inlet inlet.

[0027] Further optionally, the clothes drying device comprises a back plate and an air duct shell, the back plate is arranged behind the drum, the air duct shell is buckled on the back plate, and the air duct shell and the back plate are arranged to surround the air inlet; the back plate is formed with the air inlet outlet and the air inlet inlet;

[0028] The windshield is slidably disposed on the back plate and is located on a side of the back plate away from the air duct shell; the turntable is rotatably disposed on the back plate and is located on a side of the back plate away from the air duct shell;

[0029] The first drying fan blade and the second drying fan blade can be rotatably disposed on the air duct shell.

[0030] Further optionally, the drying air duct further includes an air outlet duct; the clothes drying device further includes a front support, the front support is arranged in front of the drum and the front support is formed with a take-in and put-out opening, the take-in and put-out opening is connected with the drum opening, and the side wall of the take-in and put-out opening is formed with the drying air outlet, and the drying air outlet is connected with the take-in and put-out opening;

[0031] The front support is also formed with the air outlet duct, and the air outlet duct is communicated with the drying air outlet.

[0032] Further optionally, the air inlet outlet is located at the upper end of the back plate, and the air inlet inlet is located at the lower end of the back plate; the access port is located at the upper end of the front support, and the air outlet is located at the lower end of the front support; the air outlet is provided with an air outlet outlet;

[0033] The clothes drying device also includes a base and two-device components; the base is located below the drum, the front support, the rear back plate and the two-device components are all arranged on the base, and the two-device components are located between the front support and the rear back plate; the two-device components include a two-device box, an evaporator and a condenser, the two-device box forms a box channel, the box channel is provided with a channel inlet and a channel outlet; the channel inlet is connected to the air outlet, and the channel outlet is connected to the air inlet; the evaporator and the condenser are arranged in the box channel, the evaporator is used to dehumidify the drying airflow, and the condenser is used to heat the drying airflow.

[0034] The present invention further provides a control method for a clothes drying device, wherein the clothes drying device is any of the clothes drying devices described above, and the clothes drying device is provided with a drying program; when the clothes drying device runs the drying program, the control method comprises:

[0035] Obtaining the current state of the drum;

[0036] Controlling the wind shielding assembly to open or close the corresponding first air inlet according to the current state of the drum;

[0037] The current state of the drum includes forward rotation, reverse rotation or stopped rotation.

[0038] Further optionally, controlling the wind shield assembly to open or close the corresponding first air inlet according to the current state of the drum includes:

[0039] When the current state of the drum is forward rotation, controlling the wind shielding assembly to open the corresponding first air inlet;

[0040] When the current state of the drum is reverse rotation or stopped rotation, the wind shielding assembly is controlled to close the corresponding first air inlet.

[0041] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0042] A movable wind shielding assembly is provided at the inlet of each first air inlet; when the first driving device drives the M first drying fan blades and the drum to rotate forward at the same time, the wind shielding assembly opens the corresponding first air inlet; the second driving device drives the N second drying fan blades to rotate forward, and the drying airflow can enter the air inlet through all the air inlet inlets and then enter the drum, with a large flow rate, a short drying time, sufficient contact between the drying airflow and the clothes in the drum, and a good drying effect;

[0043] When the first driving device drives the M first drying blades and the drum to reverse at the same time, or when the first driving device drives the M first drying blades and the drum to stop rotating, the wind shield assembly closes the corresponding first air inlet; the second driving device drives the N second drying blades to rotate forward, and the drying airflow can enter the air inlet through the air inlet inlets except the first air inlet, and then enter the drum, thereby improving the stability of the drying airflow flow, ensuring the drying effect, and improving the drying efficiency, and solving the problem that when the driving device in the existing dryer is reversed, the high-temperature drying airflow cannot enter the drum, resulting in unstable and small flow of the drying airflow, poor drying effect and low drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0045] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0046] Figure 1 A schematic structural diagram of an embodiment of a clothes drying device (with an air duct housing) provided by the present invention;

[0047] Figure 2 A schematic structural diagram of an embodiment of a clothes drying device (without air duct housing) provided by the present invention;

[0048] Figure 3 A schematic structural diagram of a first driving device embodiment provided by the present invention;

[0049] Figure 4 A schematic structural diagram of an embodiment of a windshield transmission mechanism provided by the present invention;

[0050] Figure 5 A schematic diagram of the structure of a turntable embodiment provided by the present invention;

[0051] Figure 6a A schematic structural diagram of an embodiment of the present invention when the wind shield assembly partially opens the inlet of the first air inlet duct;

[0052] Figure 6bA schematic structural diagram of an embodiment of the wind shield assembly provided by the present invention when the inlet of the first air inlet duct is fully opened;

[0053] Figure 7 A schematic structural diagram of an embodiment of the present invention in which the wind shield assembly closes the inlet of the first air inlet duct;

[0054] In the figure:

[0055] 11-drum; 111-drying air outlet; 12-back plate; 121-first air inlet entrance; 122-second air inlet entrance; 123-air inlet outlet; 13-air duct shell; 14-air inlet; 151-first drying fan blade; 152-second drying fan blade; 2-wind shield; 3-first driving device; 31-first driving motor; 311-first output shaft; 312-second output shaft; 32-pulley; 32-belt; 4-second driving device; 51-compressor; 52-two-device assembly; 6-base; 71-first gear; 72-second gear; 73-third gear; 74-connecting shaft; 75-turntable; 751-outer circular groove section; 752-spiral groove section; 753-inner circular groove section; 754-through hole. DETAILED DESCRIPTION

[0056] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0058] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0059] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0060] In existing clothes dryers, the fan blades and the drum share a driving device. When the driving device is reversed, the high-temperature drying airflow cannot enter the drum, resulting in unstable and small flow of the drying airflow, poor drying effect and low drying efficiency.

[0061] The present invention creatively provides a clothes drying device, wherein a drying air duct is connected to a drum to form a drying flow path, the drying air duct comprises an air inlet, the air inlet outlet is connected to a drying air inlet, a fan cavity is formed at the inlet of each air inlet, and a drying fan is arranged in each fan cavity; a movable wind shielding component is arranged at the inlet of the first air inlet;

[0062] When the first driving device drives the M first drying blades and the drum to rotate forward at the same time, the wind shielding component opens the corresponding first air inlet; the second driving device drives the N second drying blades to rotate forward, and the drying airflow can enter the air inlet through all the air inlet inlets and then enter the drum, with a large flow rate;

[0063] When the first driving device drives the M first drying blades and the drum to reverse at the same time, or when the first driving device drives the M first drying blades and the drum to stop rotating, the wind shield assembly closes the corresponding first air inlet inlet; the second driving device drives the N second drying blades to rotate forward, and the drying airflow can enter the air inlet through the air inlet inlets except the first air inlet inlet, and then enter the drum, thereby improving the stability of the drying airflow flow and ensuring the drying effect.

[0064] Example 1

[0065] like Figures 1 to 7 As shown, this embodiment provides a clothes drying device, which can be a clothes drying machine with a drying function alone, or a clothes processing device with both drying and washing functions; the clothes drying device includes:

[0066] Base 6,

[0067] The drum 11 is rotatably arranged on the base 6 and is located above the base 6. A drying air outlet 111 is provided at the barrel opening of the drum 11, and a drying air inlet is provided on the rear wall of the drum 11. Specifically, a front support is provided in front of the drum 11, and a take-in and put-out opening is formed on the front support. The take-in and put-out opening is connected to the barrel opening of the drum 11, and the take-in and put-out opening is used for taking and putting clothes. A drying air outlet 111 is formed on the side wall of the take-in and put-out opening, and the drying air outlet 111 is connected to the take-in and put-out opening. That is, the drying air flow enters from the rear wall of the drum 11 and is discharged from the barrel opening of the drum 11.

[0068] A drying air duct, which is connected between the drying air inlet and the drying air outlet 111, and the drying air duct and the drum 11 are connected to form a drying flow path; the drying air duct includes an air inlet 14, a box channel and an air outlet that are connected in sequence; the air inlet 14 is arranged at the rear of the drum 11 and the air inlet 14 is provided with an air inlet outlet 123 and a plurality of air inlet inlets, the air inlet outlet 123 is connected to the drying air inlet, the air inlet outlet 123 is used to convey drying airflow to the drum 11, and the air inlet inlet is used to convey drying airflow to the air inlet 14; a fan blade cavity is formed at each air inlet inlet; the air inlet inlet is located at the lower end of the air inlet 14, the air inlet outlet 123 is located at the upper end of the air inlet 14, and the drying airflow can flow from bottom to top along the air inlet 14;

[0069] A plurality of drying blades are provided; the plurality of drying blades are rotatably arranged in the plurality of blade cavities in a one-to-one correspondence; the rotation of the drying blades can cause the drying airflow to circulate in the drying flow path, and the drying airflow exchanges heat with the clothes in the drum 11 to evaporate the moisture of the clothes to achieve drying; the plurality of drying blades include M first drying blades 151 and N second drying blades 152, the air inlet corresponding to the first drying blades 151 is the first air inlet 121, and the air inlet corresponding to the second drying blades 152 is the second air inlet 122; a movable wind shield component is provided at each first air inlet 121, and the wind shield component can be controlled to open or close the corresponding first air inlet 121; the second air inlet 122 is always open, and no wind shield component is provided;

[0070] The first driving device 3 and the second driving device 4, the first driving device 3 can drive the M first drying blades 151 and the drum 11 to rotate forward or reverse at the same time, that is, the M first drying blades 151 and the drum 11 have a common driving device, when the drum 11 rotates forward and reverse alternately, the first drying blades 151 also rotate forward and reverse alternately; the second driving device 4 can drive the N second drying blades 152 to rotate simultaneously or independently;

[0071] When the first driving device 3 drives the M first drying blades 151 and the drum 11 to rotate forward at the same time, the wind shield assembly opens the corresponding first air inlet 121; at this time, the second driving device 4 can drive the N second drying blades 152 to rotate forward, and the drying airflow can enter the air inlet 14 through all the air inlet inlets, and then enter the drum 11, with a large flow rate, a short drying time, and sufficient contact between the drying airflow and the clothes in the drum 11, so as to achieve a good drying effect;

[0072] When the first driving device 3 drives the M first drying blades 151 and the drum 11 to reverse at the same time, or when the first driving device 3 drives the M first drying blades 151 and the drum 11 to stop rotating, the wind shielding component closes the corresponding first air inlet 121 to prevent the first drying blades 151 from reversing, thereby reducing the drying airflow entering the drum 11; at this time, the second driving device 4 can drive the N second drying blades 152 to rotate forward, and the drying airflow can enter the air inlet 14 through the second air inlet 122, and then enter the drum 11, thereby improving the stability of the drying airflow flow, maintaining the balance of the drying airflow in the drying circuit, ensuring the drying effect, and improving the drying efficiency; reducing the mutual interference of multiple drying airflows in the air inlet 14, effectively preventing the problem of "wind grabbing" when the first drying blades 151 reverse, and significantly improving the efficiency and energy efficiency of the dryer;

[0073] Wherein, M and N are both positive integers, and M≥1, N≥1; preferably, M=1, N=1.

[0074] There are two driving modes for the movement of the windshield assembly:

[0075] The first type: the first driving device 3 is drivably connected to the windshield assembly, and the windshield assembly is configured as follows: when the first driving device 3 drives the drum 11 to rotate forward, the first driving device 3 can drive the windshield assembly to open the corresponding first air inlet 121; when the first driving device 3 drives the drum 11 to rotate reversely or stop rotating, the first driving device 3 can drive the windshield assembly to close the corresponding first air inlet 121; that is, when the first driving device 3 drives the drum 11 and the N first drying blades 151 to rotate forward, the windshield assembly is also driven to move, so that the windshield assembly opens the corresponding first air inlet 121; when the first driving device 3 drives the drum 11 and the N first drying blades 151 to rotate reversely, or when the first driving device 3 drives the drum 11 and the N first drying blades 151 to stop rotating, the first driving device 3 also drives the windshield assembly to move, so that the windshield assembly closes the corresponding first air inlet 121;

[0076] The second type: the clothes drying device also includes a third driving device, which is drivingly connected to the wind shield assembly, and the wind shield assembly is configured as follows: when the first driving device 3 drives the drum 11 to rotate forward, the third driving device can drive the wind shield assembly to move and open the corresponding first air inlet 121; when the first driving device 3 drives the drum 11 to rotate reversely or stop rotating, the third driving device can drive the wind shield assembly to move and close the corresponding first air inlet 121; that is, according to the state of the drum 11 and the N first drying blades 151, the third driving device can be controlled to drive the wind shield assembly to move, so that the first air inlet 121 is opened or closed; wherein the state of the drum 11 and the N first drying blades 151 includes forward rotation, reverse rotation or stopped rotation;

[0077] Preferably, the driving mode for the movement of the windshield component is the first one.

[0078] The structure and movement mode of the windshield assembly determine whether the windshield assembly can smoothly open or close the first air inlet 121, which is further described below; the windshield assembly includes a plurality of windshield plates 2, and the plurality of windshield plates 2 are sequentially arranged along the circumference of the corresponding first air inlet 121; the plate surface of each windshield plate 2 is perpendicular to the center line of the corresponding first air inlet 121, and each windshield plate 2 can be slidably arranged at the corresponding first air inlet 121; preferably, each windshield assembly includes 5 to 10 windshield plates 2;

[0079] When the first driving device 3 drives the plurality of wind shields 2 to move away from the center line of the corresponding first air inlet 121, the plurality of wind shields 2 open the corresponding first air inlet 121; the plurality of wind shields 2 can simultaneously move in a direction away from the center line of the corresponding first air inlet 121, or the plurality of wind shields 2 can move in a direction away from the center line of the corresponding first air inlet 121 in sequence;

[0080] When the first driving device 3 drives multiple wind shields 2 to be close to the center line of the corresponding first air inlet 121, the multiple wind shields 2 close the corresponding first air inlet 121; the multiple wind shields 2 can move simultaneously in the direction of the center line close to the corresponding first air inlet 121, or the multiple wind shields 2 move successively in the direction of the center line close to the corresponding first air inlet 121.

[0081] The following takes M=1 and N=1 as an example to further explain the driving method of the windshield component movement;

[0082] The first driving device 3 is arranged on the base 6, and the first driving device 3 includes a first driving motor 31, a drum transmission mechanism and a windshield transmission mechanism, the first driving motor 31 includes a first output shaft 311 and a second output shaft 312, the first output shaft 311 is located at one axial end of the first driving motor 31, and the second output shaft 312 is located at the other axial end of the first driving motor 31; the first output shaft 311 and the drum 11 are connected by the drum transmission mechanism; specifically, the drum transmission mechanism includes a pulley 32 and a belt 32, the pulley 32 and the first output shaft 311 are connected by driving, and the pulley 32 and the drum 11 are connected by the belt 32; when the first output shaft 311 rotates, the pulley 32 drives the drum 11 to rotate through the belt 32; according to actual drying needs, the rotation speed of the drum 11 and the rotation speed of the first drying fan blade 151 can be adjusted; the forward and reverse rotation of the drum 11 can avoid the entanglement of clothes caused by the one-way rotation of the drum 11;

[0083] Among them, the forward rotation refers to one of clockwise and counterclockwise rotation of the drum 11 when the drum 11 is observed at the mouth of the drum 11; the reverse rotation refers to the other of clockwise and counterclockwise rotation of the drum 11 when the drum 11 is observed at the mouth of the drum 11.

[0084] The second output shaft 312 is formed with a first output portion and a second output portion spaced apart along the axial direction of the second output shaft 312; the first output portion is drivingly connected to the first drying fan blade 151, and when the first output portion rotates, the first drying fan blade 151 can rotate; the second output portion is drivingly connected to the windshield assembly through a windshield plate transmission mechanism, and when the second output portion rotates, under the action of the windshield plate transmission mechanism, the windshield assembly moves, thereby opening or closing the first air inlet 121;

[0085] The windshield transmission mechanism includes a first state, a second state and a third state between the first state and the second state; the windshield transmission mechanism can be switched from the first state to the second state, or from the second state to the first state, through the third state;

[0086] When the windshield transmission mechanism is in the first state, the first drive motor 31 drives the drum 11 and the first drying fan blade 151 to rotate forward, and the windshield assembly fully opens the corresponding first air inlet 121;

[0087] When the windshield transmission mechanism is in the second state, the first drive motor 31 drives the drum 11 and the first drying fan blade 151 to reverse or stop rotating, and the windshield assembly completely closes the corresponding first air inlet 121;

[0088] When the windshield transmission mechanism is in the third state, the first drive motor 31 drives the drum 11 and the first drying fan blade 151 to rotate forward or reversely, and the windshield assembly partially opens the corresponding first air inlet 121; when the first drive motor 31 drives the drum 11 and the first drying fan blade 151 to rotate forward, the windshield assembly moves in a direction away from the center line of the first air inlet 121, and then the windshield assembly gradually opens the corresponding first air inlet 121; when the first drive motor 31 drives the drum 11 and the first drying fan blade 151 to rotate reversely, the windshield assembly moves in a direction close to the center line of the first air inlet 121, and then the windshield assembly gradually closes the corresponding first air inlet 121;

[0089] Further, the windshield transmission mechanism includes a gear set and a rotating disk 75, the gear set includes a first gear 71, a second gear 72 and a third gear 73, the first gear 71 is drivingly connected to the second output part, the second gear 72 and the third gear 73 are connected through a connecting shaft 74, and the first gear 71 and the second gear 72 are externally meshed; when the second output part rotates, the first gear 71 rotates, and the second gear 72 and the third gear 73 rotate synchronously;

[0090] The rotating disk 75 is rotatably disposed at the inlet 121 of the first air inlet duct, and the rotating disk 75 and the wind shield plate 2 are located on the same side of the inlet 121 of the first air inlet duct; the outer edge of the rotating disk 75 is formed with transmission teeth, and the transmission teeth are externally meshed with the third gear 73; when the third gear 73 rotates, the rotating disk 75 rotates;

[0091] A through hole 754 is formed on the radial inner side of the turntable 75, and the through hole 754 is connected to the first air inlet 121. The flow area of ​​the through hole 754 is greater than or equal to the flow area of ​​the first air inlet 121. The turntable 75 does not affect the flow of the drying airflow; the axial end surface of the turntable 75 close to the wind shield 2 is formed with a slide groove arranged around the outer side of the through hole 754, that is, the slide groove is formed as a whole on the axial end surface of the turntable 75 close to the wind shield 2; the slide groove includes a coaxial arrangement and along the turntable 7 5 radially from outside to inside, the outer circular groove segment 751, the spiral groove segment 752 and the inner circular groove segment 753 are sequentially connected; the outer circular groove segment 751 and the spiral groove segment 752 are tangent at the connecting portion of the outer circular groove segment 751 and the spiral groove segment 752, and the inner circular groove segment 753 and the spiral groove segment 752 are tangent at the connecting portion of the inner circular groove segment 753 and the spiral groove segment 752; the slide bar and the slide groove are slidably matched, and when the slide bar slides along the slide groove, it can smoothly enter each groove segment;

[0092] Each windshield plate 2 is provided with a sliding rod on the side close to the rotating disk 75, and the extending direction of the sliding rod is perpendicular to the plate surface of the corresponding windshield plate 2;

[0093] When the windshield transmission mechanism is in the first state, each slide bar is slidably matched with the outer circular groove section 751; the second output portion drives the first gear 71 to rotate forward, the turntable 75 rotates forward, and each slide bar slides in the outer circular groove section 751, that is, each slide bar remains in a radial position at the inlet 121 of the first air inlet duct, and each windshield 2 is stationary, and the flow area of ​​the inlet 121 of the first air inlet duct remains unchanged;

[0094] When the windshield transmission mechanism is in the second state, each slide bar is slidably matched with the inner circular groove section 753; the second output portion drives the first gear 71 to reverse, the turntable 75 to reverse, and each slide bar slides in the inner circular groove section 753, that is, each slide bar remains in a radial position of the first air inlet 121, then each windshield 2 is stationary, and the flow area of ​​the first air inlet 121 remains unchanged;

[0095] When the windshield transmission mechanism is in the third state, each slide bar is slidably matched with the spiral groove section 752; ① the second output portion drives the first gear 71 to rotate forward, the turntable 75 rotates forward, each slide bar slides from the inner circular groove section 753 into the spiral groove section 752 in turn and slides, each slide bar gradually slides in a direction away from the center line of the first air inlet 121 in turn, and each windshield 2 slides in a direction away from the center line of the corresponding first air inlet 121 in turn, thereby gradually increasing the flow area corresponding to the first air inlet 121; ① When the windshield transmission mechanism is in the first state, the windshield assembly completely opens the first air inlet 121; ② The second output part drives the first gear 71 to reverse, and the turntable 75 reverses, and each slide bar slides from the outer circular groove section 751 into the spiral groove section 752 in turn and slides, and each slide bar gradually slides in the direction close to the center line of the first air inlet 121, and then the flow area corresponding to the first air inlet 121 gradually decreases; when the windshield transmission mechanism is in the second state, the windshield assembly completely closes the first air inlet 121.

[0096] The following further describes the arrangement of the windshield 2 and the turntable 75. The clothes drying device further includes a back plate 12 and an air duct shell 13. The back plate 12 is arranged behind the drum 11. The air duct shell 13 is buckled on the back plate 12. The air duct shell 13 and the back plate 12 are surrounded by an air inlet 14. The back plate 12 is attached to the rear wall. The back plate 12 is formed with an air inlet outlet 123 and an air inlet inlet. Specifically, the air inlet outlet 123 is located at the upper end of the back plate 12, and the air inlet inlet is located at the lower end of the back plate 12.

[0097] The windshield 2 is slidably disposed on the back plate 12 and is located on a side of the back plate 12 away from the air duct housing 13; the turntable 75 is rotatably disposed on the back plate 12 and is located on a side of the back plate 12 away from the air duct housing 13; specifically, the turntable 75 is located in front of the windshield assembly;

[0098] The first drying fan blade 151 and the second drying fan blade 152 can be rotatably arranged on the air duct shell 13; that is, one end of the rotating shaft of the first drying fan blade 151 is drivingly connected to the first output part, and the other end of the rotating shaft of the first drying fan blade 151 is rotatably arranged on the air duct shell 13; the second driving device 4 is arranged on the air duct shell 13 and away from the back plate 12, and the output shaft of the second driving device 4 is drivingly connected to the rotating shaft of the second drying fan blade 152.

[0099] In addition, the drying air duct also includes an air outlet; the front support is also formed with an air outlet, and the air outlet is connected to the drying air outlet 111; specifically, the access port is located at the upper end of the front support, and the air outlet is located at the lower end of the front support; the air outlet is provided with an air outlet;

[0100] The clothes drying device also includes two-device components 52; the front support, the rear back plate 12 and the two-device components 52 are all arranged on the base 6, and the two-device components 52 are located between the front support and the rear back plate 12, and the drum 11 is located between the front support and the rear back plate 12; the two-device components 52 include two-device boxes, an evaporator and a condenser, the two-device boxes form a box channel, and the box channel is provided with a channel inlet and a channel outlet; the channel inlet is connected to the outlet of the air outlet, and the channel outlet is connected to the inlet of the air inlet; in this way, the air inlet 14, the box channel, the air outlet and the drum 11 are connected in sequence to form a drying flow path; the evaporator and the condenser are arranged in the box channel, the evaporator is used to dehumidify the drying airflow, and the condenser is used to heat the drying airflow; when the drying fan blades rotate, the drying airflow can circulate in the drying flow path, and when the drying airflow flows through the evaporator, the evaporator can dehumidify the drying airflow; when the drying airflow flows through the condenser, the condenser can heat the drying airflow; the drying airflow and the clothes in the drum 11 are heat-exchanged to achieve the purpose of drying the clothes.

[0101] Specifically, a plurality of air inlet areas are formed on the rear wall of the drum 11, each of which is provided with a plurality of drying air inlets. The plurality of air inlet areas are arranged at intervals along the circumference of the drum 11, and the axes of the plurality of air inlet areas are consistent with the rotation axis of the drum 11; the plurality of air inlet areas are all connected to the air inlet duct outlet 123; when the drying fan blades rotate, the drying airflow in the drum 11 can enter the air inlet duct 14 through the air inlet duct inlet, and then enter the drum 11 through the air inlet duct outlet 123;

[0102] The two-device box comprises a two-device box body and a two-device cover body, wherein the two-device cover body is covered on the two-device box body and a box channel is formed between the two-device box body and the two-device cover body;

[0103] The clothes drying device further includes a compressor 51 , and the compressor 51 is connected to the evaporator and the condenser via a refrigerant pipeline.

[0104] For the clothes dryer of this embodiment (one is provided for each of the first air inlet 121 and the second air inlet 122), simulation analysis is performed, including two cases where no wind shielding component is provided at the first air inlet 121 and a wind shielding component is provided; the specific simulation results are shown in Table 1;

[0105] It can be seen from Table 1 that when the first driving device 3 drives the first drying fan blade 151 and the drum 11 to reverse at the same time or the first drying fan blade 151 and the drum 11 stop rotating, the wind shield assembly closes the corresponding first air inlet 121; the second driving device 4 can drive the second drying fan blade 152 to rotate forward, and the drying airflow can enter the air inlet 14 through the second air inlet 122 and then enter the drum 11. The flow rate of the drying airflow at the drying air inlet is stable and will not produce a significant attenuation.

[0106] Table 1 Comparison of the flow rate of drying air at the drying air inlet when the wind shield component is not set / set at the inlet of the first air inlet

[0107] Drum forward rotation The drum stops rotating Drum reversal No windshield assembly 200 150 40 Install windshield assembly 200 198 198

[0108] Example 2

[0109] This embodiment provides a control method for a clothes drying device, wherein the clothes drying device is any of the clothes drying devices described above, and the clothes drying device is provided with a drying program; when the clothes drying device runs the drying program, the control method includes:

[0110] S1, obtaining the current state of the drum 11;

[0111] S2, controlling the wind shield assembly to open or close the corresponding first air inlet 121 according to the current state of the drum 11;

[0112] The current state of the drum 11 includes forward rotation, reverse rotation or stationary rotation.

[0113] S2 includes:

[0114] When the current state of the drum 11 is forward rotation, the wind shielding assembly is controlled to open the corresponding first air inlet 121;

[0115] When the current state of the drum 11 is reverse or stationary, the wind shielding assembly is controlled to close the corresponding first air inlet 121;

[0116] The control method also includes:

[0117] When the drum 11 rotates forwardly, the rotation speed of the first drying fan blade 151 and / or the rotation speed of the second drying fan blade 152 is adjusted according to different drying stages of the drying program.

[0118] In summary, in the clothes drying device, a wind shielding assembly is provided at the first air inlet 121; when the first driving device 3 drives the M first drying blades 151 and the drum 11 to rotate forward at the same time, the wind shielding assembly opens the corresponding first air inlet 121; the second driving device 4 drives the N second drying blades 152 to rotate forward, and the drying airflow can enter the air inlet 14 through all the air inlet inlets, and then enter the drum 11, with a large flow rate, a short drying time, sufficient contact between the drying airflow and the clothes in the drum 11, and a good drying effect;

[0119] When the first driving device 3 drives the M first drying blades 151 and the drum 11 to reverse at the same time or the M first drying blades 151 and the drum 11 stop rotating, the wind shield assembly closes the corresponding first air inlet 121; the second driving device 4 drives the N second drying blades 152 to rotate forward, and the drying airflow can enter the air inlet 14 through the second air inlet 122, and then enter the drum 11, thereby improving the stability of the drying airflow flow, ensuring the drying effect, and improving the drying efficiency.

[0120] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A clothes drying device, characterized in that: include: The drum (11) has a drying air outlet (111) at its drum opening, and a drying air inlet is provided on the rear wall of the drum (11); A drying air duct connected between the drying air inlet and the drying air outlet (111); the drying air duct comprises an air inlet (14); the air inlet (14) is provided with an air inlet outlet (123) and a plurality of air inlet inlets, the air inlet outlet (123) is connected to the drying air inlet, and the air inlet inlets are used to convey drying airflow to the air inlet (14); a fan blade cavity is formed at each of the air inlet inlets; A plurality of drying fan blades are provided; the plurality of drying fan blades are rotatably arranged in the plurality of fan blade cavities in a one-to-one correspondence; the plurality of drying fan blades include M first drying fan blades (151) and N second drying fan blades (152), and the air inlet corresponding to the first drying fan blades (151) is the first air inlet (121); a movable wind shielding component is provided at each of the first air inlet (121), and the wind shielding component can be controlled to open or close the corresponding first air inlet (121); A first driving device (3) and a second driving device (4), wherein the first driving device (3) can drive M of the first drying blades (151) and the drum (11) to rotate forward or reverse simultaneously; and the second driving device (4) can drive N of the second drying blades (152) to rotate simultaneously or independently. When the first driving device (3) drives the M first drying blades (151) and the drum (11) to rotate forward simultaneously, the wind shielding component opens the corresponding first air inlet (121); When the first driving device (3) drives the M first drying blades (151) and the drum (11) to reverse simultaneously, or when the first driving device (3) drives the M first drying blades (151) and the drum (11) to stop rotating, the wind shielding component closes the corresponding first air inlet (121); Wherein, M and N are both positive integers, and M≥1, N≥1.

2. The clothes drying device according to claim 1, characterized in that: The first driving device (3) is drivingly connected to the wind shield assembly, and the wind shield assembly is configured such that: when the first driving device (3) drives the drum (11) to rotate forward, the first driving device (3) can drive the wind shield assembly to open the corresponding first air inlet (121); when the first driving device (3) drives the drum (11) to rotate reversely or the drum (11) stops rotating, the first driving device (3) can drive the wind shield assembly to close the corresponding first air inlet (121); or, The clothes drying device further comprises a third driving device, the third driving device being drivingly connected to the wind shield assembly, the wind shield assembly being configured such that: when the first driving device (3) drives the drum (11) to rotate forward, the third driving device can drive the wind shield assembly to open the corresponding first air inlet (121); and when the first driving device (3) drives the drum (11) to rotate reversely or stop rotating, the third driving device can drive the wind shield assembly to close the corresponding first air inlet (121).

3. The clothes drying device according to claim 2, characterized in that: The wind shield assembly comprises a plurality of wind shields (2), wherein the plurality of wind shields (2) are sequentially arranged along the circumference of the corresponding first air inlet duct inlet (121); the plate surface of each wind shield (2) is perpendicular to the center line of the corresponding first air inlet duct inlet (121), and each wind shield (2) can be slidably arranged at the corresponding first air inlet duct inlet (121); When the first driving device (3) drives the plurality of wind shields (2) to move away from the center line of the corresponding first air inlet duct inlet (121), the plurality of wind shields (2) open the corresponding first air inlet duct inlet (121); When the first driving device (3) drives the plurality of wind shields (2) to approach the center line of the corresponding first air inlet duct inlet (121), the plurality of wind shields (2) close the corresponding first air inlet duct inlet (121).

4. The clothes drying device according to claim 3, characterized in that: M=1, N=1; the first driving device (3) comprises a first driving motor (31), a drum transmission mechanism and a windshield transmission mechanism; the first driving motor (31) comprises a first output shaft (311) and a second output shaft (312); the first output shaft (311) and the drum (11) are connected in transmission via the drum transmission mechanism; the second output shaft (312) is formed with a first output portion and a second output portion which are spaced apart along the axial direction of the second output shaft (312); the first output portion is connected in driving relation to the first drying fan blade (151), and the second output portion is connected in transmission relation to the windshield assembly via the windshield transmission mechanism; the windshield transmission mechanism comprises a first state, a second state and a third state between the first state and the second state; When the windshield transmission mechanism is in the first state, the first drive motor (31) drives the drum (11) and the first drying fan blade (151) to rotate forward, and the windshield component fully opens the corresponding first air inlet (121); When the windshield transmission mechanism is in the second state, the first drive motor (31) drives the drum (11) and the first drying fan blade (151) to reverse or stop rotating, and the windshield component completely closes the corresponding first air inlet (121); When the windshield transmission mechanism is in the third state, the first drive motor (31) drives the drum (11) and the first drying fan blade (151) to rotate forward or reverse, and the windshield component partially opens the corresponding first air inlet (121).

5. The clothes drying device according to claim 4, characterized in that: The windshield transmission mechanism comprises a gear set and a rotating disk (75), wherein the gear set comprises a first gear (71), a second gear (72) and a third gear (73), wherein the first gear (71) is drivingly connected to the second output unit, the second gear (72) and the third gear (73) are connected via a connecting shaft (74), and the first gear (71) and the second gear (72) are externally meshed; the rotating disk (75) is rotatably arranged at the inlet (121) of the first air inlet duct, and the rotating disk (75) and the windshield (2) are located on the same side of the inlet (121) of the first air inlet duct; a transmission tooth is formed on the outer edge of the rotating disk (75), and the transmission tooth is externally meshed with the third gear (73); when the second output unit drives the first gear (71) to rotate, the second gear (72) and the third gear (73) rotate synchronously, and then the rotating disk (75) rotates; A through hole (754) is formed on the radial inner side of the rotating disk (75), and the through hole (754) is connected to the inlet (121) of the first air inlet duct; an axial end surface of the rotating disk (75) close to the wind shield (2) is formed with a slide groove arranged around the outer side of the through hole (754), and the slide groove comprises an outer circular groove section (751), a spiral groove section (752) and an inner circular groove section (753) which are coaxially arranged and sequentially connected from the outside to the inside along the radial direction of the rotating disk (75); Each windshield plate (2) is provided with a sliding rod on the side close to the rotating disk (75), and the extending direction of the sliding rod is perpendicular to the plate surface of the corresponding windshield plate (2); When the windshield transmission mechanism is in the first state, each of the slide bars is in sliding cooperation with the outer circular groove section (751), the rotating disk (75) rotates forward along with the first drive motor (31), and each of the windshields (2) is stationary; When the windshield transmission mechanism is in the second state, each of the slide bars is in sliding cooperation with the inner circular groove section (753), the rotating disk (75) rotates in reverse along with the first drive motor (31), and each of the windshields (2) is stationary; When the wind shield transmission mechanism is in the third state, each of the sliding rods is slidably matched with the spiral groove section (752); the turntable (75) rotates forward along with the first drive motor (31), and each of the wind shields (2) slides in a direction away from the center line of the corresponding first air inlet duct inlet (121); the turntable (75) rotates reversely along with the first drive motor (31), and each of the wind shields (2) slides in a direction close to the center line of the corresponding first air inlet duct inlet (121).

6. The clothes drying device according to claim 5, characterized in that: The clothes drying device comprises a back plate (12) and an air duct shell (13); the back plate (12) is arranged at the rear of the drum (11); the air duct shell (13) is buckled on the back plate (12), and the air duct shell (13) and the back plate (12) are arranged to form the air inlet duct (14); the back plate (12) is formed with the air inlet duct outlet (123) and the air inlet duct inlet; The windshield plate (2) is slidably disposed on the rear plate (12) and is located on a side of the rear plate (12) away from the air duct shell (13); the rotating disk (75) is rotatably disposed on the rear plate (12) and is located on a side of the rear plate (12) away from the air duct shell (13); The first drying fan blade (151) and the second drying fan blade (152) are both rotatably arranged on the air duct shell (13).

7. The clothes drying device according to claim 6, characterized in that: The drying air duct also includes an air outlet duct; the clothes drying device also includes a front support, the front support is arranged in front of the drum (11) and the front support is formed with a take-in and put-out opening, the take-in and put-out opening is connected to the drum opening, and the side wall of the take-in and put-out opening is formed with the drying air outlet (111), and the drying air outlet (111) is connected to the take-in and put-out opening; The front support is also formed with the air outlet duct, and the air outlet duct is connected to the drying air outlet (111).

8. The clothes drying device according to claim 7, characterized in that: The air inlet duct outlet (123) is located at the upper end of the rear back plate (12), and the air inlet duct inlet is located at the lower end of the rear back plate (12); the access opening is located at the upper end of the front support, and the air outlet duct is located at the lower end of the front support; the air outlet duct is provided with an air outlet duct outlet; The clothes drying device further comprises a base (6) and two-device components (52); the base (6) is located below the drum (11); the front support, the rear back plate (12) and the two-device components (52) are all arranged on the base (6), and the two-device components (52) are located between the front support and the rear back plate (12); the two-device components (52) comprise two-device boxes, an evaporator and a condenser, the two-device boxes form a box channel, the box channel is provided with a channel inlet and a channel outlet; the channel inlet is connected to the outlet of the air outlet, and the channel outlet is connected to the inlet of the air inlet; the evaporator and the condenser are arranged in the box channel, the evaporator is used for dehumidifying the drying air flow, and the condenser is used for heating the drying air flow.

9. A method for controlling a clothes drying device, characterized in that: The clothes drying device is the clothes drying device according to any one of claims 1 to 8, and the clothes drying device is provided with a drying program; when the clothes drying device runs the drying program, the control method comprises: Obtaining the current state of the drum (11); Controlling the wind shielding component to open or close the corresponding first air inlet (121) according to the current state of the drum (11); The current state of the drum (11) includes forward rotation, reverse rotation or stopped rotation.

10. The control method of the clothes drying device according to claim 9, characterized in that: The controlling of the wind shielding assembly to open or close the corresponding first air inlet (121) according to the current state of the drum (11) comprises: When the current state of the drum (11) is forward rotation, controlling the wind shielding component to open the corresponding first air inlet (121); When the current state of the drum (11) is reverse rotation or stopped rotation, the wind shielding component is controlled to close the corresponding first air inlet (121).

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