Laundry treating apparatus and control method

Abstract

The present application provides a kind of clothes processing equipment and control method, clothes processing equipment includes cylinder and drying assembly, cylinder rear wall is formed with main air inlet, cylinder mouth is formed with auxiliary air inlet and air outlet;Drying assembly is formed with main air duct and auxiliary air duct;Main air duct is connected between main air inlet and air outlet, auxiliary air duct is connected between auxiliary air inlet and auxiliary air outlet;Auxiliary air outlet can be controlled to open or close, auxiliary air duct is provided with auxiliary heating element;Auxiliary drying airflow at auxiliary air inlet The flow rate of main drying airflow at main air inlet is greater than the flow rate of main drying airflow at main air inlet;When auxiliary drying airflow and main drying airflow flow in opposite directions, it can blow the clothes near the cylinder mouth to the middle of the cylinder, and make the clothes unfold, reduce the generation and fixation of clothes wrinkles, prevent clothes from rolling into a ball, improve drying efficiency and flatness of clothes after drying care;By setting auxiliary heating element in auxiliary air duct, the temperature rising speed of clothes processing equipment in early drying stage is improved.

Description

Technical Field

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

[0002] Heat pump dryers use a heat pump system to heat gas and dry clothes, maintaining a low temperature of 50℃-60℃ to minimize damage to clothing, especially delicate garments, and are also energy-efficient and environmentally friendly. However, simply using a heat pump system to heat and dry clothes also has some problems. For example, the compressor's efficiency decreases when the ambient temperature is low, resulting in clothes not being completely dried or requiring excessively long drying times. In addition, over-drying can occur, which not only damages the clothes but also wastes resources.

[0003] Some have suggested installing auxiliary heating elements such as heating wires or heating tubes inside the drying duct for supplementary heating. By combining these heating elements with a heat pump system, the heating time of the dryer can be shortened, thereby reducing the drying time. However, this increases wind resistance and reduces airflow, resulting in additional energy consumption for drying and the same problems of insufficient drying and low drying efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a garment processing device and control method to solve the problems of insufficient drying and low drying efficiency caused by the auxiliary heating element being directly installed in the main drying air duct in existing dryers, which increases wind resistance and reduces air volume.

[0005] This invention provides a garment processing device, comprising:

[0006] A drum includes a drum opening and a drum rear wall; the drum rear wall is located behind the drum opening and is disposed opposite to the drum opening, and a main air inlet is formed in the drum rear wall; an auxiliary air inlet and an air outlet are formed at the drum opening, and the air outlet direction of the auxiliary air inlet is towards the drum rear wall;

[0007] The drying assembly has a main air duct and an auxiliary air duct; the main air duct is connected between the main air inlet and the main air outlet, and the main air duct also has an auxiliary air outlet; the auxiliary air duct is connected between the auxiliary air inlet and the auxiliary air outlet; the auxiliary air outlet can be controlled to open or close, and an auxiliary heating element is provided in the auxiliary air duct;

[0008] The flow area of ​​the auxiliary air inlet is smaller than that of the main air inlet;

[0009] The drying airflow entering the drum through the auxiliary air inlet is the auxiliary drying airflow, and the drying airflow entering the drum through the main air inlet is the main drying airflow.

[0010] When the auxiliary drying airflow and the main drying airflow enter the drum, the auxiliary drying airflow can first flow in the opposite direction to the main drying airflow, and then be discharged through the air outlet along with the main drying airflow.

[0011] Further optionally, the rear wall of the drum includes multiple air inlet zones, which are spaced apart circumferentially along the rear wall of the drum, and each air inlet zone forms multiple main air inlets; the drum also includes a drum peripheral wall, through which the main drying airflow enters the drum via the multiple main air inlets and flows toward the drum opening, and there is a gap between the main drying airflow and the drum peripheral wall;

[0012] The auxiliary air inlet is located near the peripheral wall of the drum. The auxiliary drying airflow entering the drum through the auxiliary air inlet can first flow towards the rear wall of the drum and be close to the peripheral wall of the drum, and then flow towards the drum opening along with the main drying airflow.

[0013] Further optionally, the main air duct includes a main air outlet duct, two chambers, and a main air inlet duct; two devices are disposed in the two chambers, and the two devices and the compressor are connected through refrigerant pipes; the sidewalls of the two chambers are formed with a two-device inlet, a two-device main outlet, and a two-device auxiliary outlet communicating with the two chambers; the two-device auxiliary outlet is the auxiliary air outlet;

[0014] The main air outlet is connected between the inlet and outlet of the two chambers, and the main air inlet is connected between the main outlet and main inlet of the two chambers.

[0015] Optionally, a main fan is provided at one end of the main air inlet duct near the main outlet of the two chambers, and the main fan connects the main air inlet duct and the main outlet of the two chambers; the motor of the main fan is a DC motor.

[0016] An auxiliary fan is provided at one end of the auxiliary air duct near the auxiliary air outlet, and the auxiliary fan connects the auxiliary air duct and the auxiliary air outlet; the end of the auxiliary air duct near the auxiliary air inlet is tapered, and the auxiliary heating element is located downstream of the auxiliary fan.

[0017] Further optionally, the drying assembly includes a first housing, the first housing forming an annular structure; the annular structure surrounds the cylinder opening and forms the auxiliary air inlet and air outlet, the auxiliary air inlet being positioned higher than the air outlet.

[0018] Optionally, the first housing also forms a first main air outlet duct, the first main air outlet duct is located at the bottom of the annular structure and the air inlet and air outlet of the first main air outlet duct are connected; the drying assembly includes a second housing, the second housing is disposed at the bottom of the first main air outlet duct and the second housing forms a second main air outlet duct; the second main air outlet duct and the first main air outlet duct are connected to form the main air outlet duct;

[0019] The garment processing equipment also includes a chassis and a support plate. The chassis is disposed below the roller, and the second housing is disposed on the chassis. The support plate is disposed on the chassis and located on the rear side of the rear wall of the roller.

[0020] The drying assembly also includes an air inlet shell, which is disposed on the support plate and the main air inlet duct is formed between the air inlet shell and the support plate.

[0021] Optionally, the drying assembly further includes a two-piece box, which is disposed between the chassis and the drum. The two-piece box includes a two-piece box body and a two-piece cover. The two-piece box body is disposed on the chassis or integrally formed with the chassis. The two-piece cover covers the two-piece box body and forms the two-piece cavity. The front side of the two-piece cavity has an inlet, the rear side of the two-piece cavity has a main outlet, and the left or right side of the two-piece cavity has an auxiliary outlet.

[0022] The present invention also provides a control method for a garment processing device, wherein the garment processing device is any one of the garment processing devices described above, and the garment processing device is provided with a drying program; when the garment processing device operates the drying program, the control method includes:

[0023] Start the compressor and obtain the current temperature of the drying airflow at the air outlet;

[0024] Compare the current temperature with the preset temperature;

[0025] Based on the comparison between the current temperature and the preset temperature, the main fan, auxiliary fan, and auxiliary heating element are controlled.

[0026] Further optionally, the preset temperature includes a first preset temperature and a second preset temperature; controlling the main fan, auxiliary fan, and auxiliary heating element based on the comparison between the current temperature and the preset temperature includes:

[0027] When the current temperature is lower than the first preset temperature, control the main fan to rotate at a first speed, control the auxiliary air outlet to open, and control the auxiliary fan to rotate and start timing;

[0028] When the auxiliary fan has been rotating for a first preset time, the auxiliary heating element is controlled to operate.

[0029] When the current temperature is greater than or equal to the second preset temperature, the auxiliary heating element is controlled to stop and a timer is started.

[0030] When the auxiliary heating element stops for a period of time that reaches the second preset duration, the auxiliary fan is stopped and the auxiliary air outlet is closed.

[0031] The second preset temperature is greater than the first preset temperature.

[0032] Further optionally, the preset temperature further includes a third preset temperature; the step of controlling the main fan, auxiliary fan, and auxiliary heating element based on the comparison result between the current temperature and the preset temperature further includes:

[0033] During the time from when the auxiliary heating element stops to when the auxiliary fan stops, if the current temperature is greater than or equal to the first preset temperature, the main fan is controlled to rotate at the second speed.

[0034] When the current temperature is greater than or equal to the third preset temperature, control the auxiliary air outlet to open and the auxiliary fan to rotate.

[0035] Wherein, the second rotational speed is greater than the first rotational speed; the third preset temperature is greater than the first preset temperature and less than the second preset temperature.

[0036] Further, optionally, the control method further includes:

[0037] During the time from when the auxiliary heating element stops to when the auxiliary fan stops, if the current temperature is greater than or equal to the first preset temperature, the main fan is controlled to rotate at the second speed.

[0038] Obtain the current humidity of the load inside the drum;

[0039] Compare the current humidity with the preset humidity;

[0040] When the current humidity is less than the first preset humidity, the auxiliary air outlet is opened and the auxiliary fan is rotated.

[0041] Further, optionally, the control method further includes:

[0042] When the current humidity is less than the second preset humidity, the main fan, auxiliary fan and compressor are all stopped.

[0043] The second preset humidity is less than the first preset humidity.

[0044] Compared with the prior art, the main advantages of the present invention are as follows:

[0045] The auxiliary drying airflow enters the drum through the auxiliary air duct, while the main drying airflow enters through the main air duct. The flow area of ​​the auxiliary air inlet is smaller than that of the main air inlet, causing the flow velocity of the auxiliary drying airflow at the auxiliary air inlet to be greater than that of the main drying airflow at the main air inlet. Consequently, the auxiliary drying airflow initially flows in the opposite direction to the main drying airflow, and then exits through the air outlet along with the main drying airflow. When the auxiliary and main drying airflows flow in opposite directions, they can blow clothes near the drum opening towards the center of the drum, spreading them out, reducing and securing wrinkles, and preventing clothes from rolling into clumps. This system ensures clothes are thoroughly dried, improving drying efficiency and the smoothness of the clothes after drying. By installing auxiliary heating elements within the auxiliary air duct, the system increases the temperature rise rate of the garment processing equipment during the initial drying phase. Furthermore, by controlling the opening and closing of the auxiliary air outlet, the time the auxiliary heating elements are exposed to the auxiliary drying airflow is reduced. The auxiliary drying airflow also reduces the accumulation of lint on the surface of the auxiliary heating elements, thereby reducing odors generated during the drying process. This solves the problem in existing dryers where the electric heating element is directly placed within the main drying air duct, resulting in increased wind resistance and reduced airflow, leading to insufficient drying and low drying efficiency. Attached Figure Description

[0046] 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.

[0047] 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.

[0048] Figure 1a and Figure 1b This is a schematic diagram of an embodiment of the clothing processing equipment (without support plate) provided by the present invention;

[0049] Figure 2a and Figure 2b This is a schematic diagram of an embodiment of the clothing processing device (waterless box) provided by the present invention;

[0050] Figure 3a and Figure 3bThis is a partial exploded structural diagram of an embodiment of the clothing processing equipment provided by the present invention;

[0051] Figure 4 This is a complete exploded structural diagram of the clothing processing equipment embodiment provided by the present invention;

[0052] Figure 5a and Figure 5b A schematic diagram of the flow path of the main drying airflow and auxiliary drying airflow in the garment processing equipment provided by the present invention;

[0053] Figure 6a A schematic diagram of an embodiment of the drying assembly (with auxiliary fan and auxiliary air duct) provided by the present invention;

[0054] Figure 6b This is a schematic diagram of an embodiment of the drying assembly (without auxiliary fan and auxiliary air duct) provided by the present invention;

[0055] Figure 7 This is a schematic diagram of the assembly structure of the drying component, the first housing, and the air outlet shell provided by the present invention.

[0056] Figure 8 This is a schematic flowchart of an embodiment of the control method for the clothing processing equipment provided by the present invention;

[0057] In the picture:

[0058] 1-Drum; 11-Drum rear wall; 111-Main air inlet; 12-Drum peripheral wall; 13-Drum opening;

[0059] 2-Drying assembly; 21-Air inlet housing; 211-Main air inlet duct; 22-Main fan; 221-Main fan blade; 222-Main motor; 23-First housing; 231-Auxiliary air inlet; 232-Air outlet; 233-First main air outlet duct; 241-Auxiliary air duct housing; 242-Auxiliary air duct cover; 243-Auxiliary air duct; 25-Auxiliary fan; 251-Auxiliary fan housing; 252-Auxiliary fan cover; 253-Auxiliary fan blade; 254-Auxiliary motor;

[0060] 31-Dual-electrode housing; 32-Dual-electrode cover; 331-Dual-electrode cavity inlet; 332-Dual-electrode cavity main outlet; 333-Auxiliary air outlet; 341-Evaporator; 342-Condenser; 351-Atomizer; 352-Water supply pipe; 353-Water box;

[0061] 41-Drum motor; 421-First pulley; 422-Second pulley; 423-Third pulley; 431-First belt; 432-Second belt;

[0062] 5-Chassis; 51-Second housing; 511-Second main air outlet; 512-Front air outlet; 513-Rear air outlet; 514-Top air outlet; 52-Heat dissipation channel; 53-Mounting structure;

[0063] 61-Front cover; 62-Cooling fan; 63-Support plate; 631-Ventilation opening; 64-Auxiliary heating element. Detailed Implementation

[0064] 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.

[0065] 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.

[0066] 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, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0067] 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.

[0068] In existing heat pump dryers, the compressor's efficiency decreases when the ambient temperature is low, resulting in clothes not being fully dried or requiring excessively long drying times. Over-drying can also damage clothes and waste resources. Some have proposed adding heating elements such as heating wires or tubes to the drying duct for auxiliary heating, combining these elements with the heat pump system to shorten the dryer's heating time and thus drying time. However, this increases air resistance and reduces airflow, generating additional energy consumption and again leading to insufficient drying and low efficiency.

[0069] This invention creatively provides a garment processing device, including a drum and a drying assembly. The rear wall of the drum has a main air inlet, and the drum opening has an auxiliary air inlet and an air outlet. The drying assembly has a main air duct and an auxiliary air duct. The main air duct connects the main air inlet and the air outlet, and the auxiliary air duct connects the auxiliary air inlet and the auxiliary air outlet. The auxiliary air outlet can be controlled to open or close, and an auxiliary heating element is provided inside the auxiliary air duct. The flow velocity of the auxiliary drying airflow at the auxiliary air inlet is greater than the flow velocity of the main drying airflow at the main air inlet.

[0070] The auxiliary drying airflow initially flows in the opposite direction to the main drying airflow, and then exits through the air outlet along with the main drying airflow. When the auxiliary drying airflow flows in the opposite direction to the main drying airflow, it can blow clothes near the drum opening towards the middle of the drum, causing the clothes to unfold, reducing and fixing the clothes, preventing the clothes from rolling into clumps, ensuring that the clothes are fully dried, improving drying efficiency and the smoothness of the clothes after drying and care. By setting auxiliary heating elements in the auxiliary air duct, the heating speed of the clothes processing equipment in the early stage of drying is improved. By controlling the opening or closing of the auxiliary air outlet, the time that the auxiliary heating elements are exposed to the auxiliary drying airflow is reduced, and the auxiliary drying airflow can reduce the accumulation of lint on the surface of the auxiliary heating elements, thereby reducing the odor generated during the drying process. This solves the problem in existing dryers where the electric heating elements are directly placed in the main drying air duct, resulting in increased wind resistance and reduced air volume, leading to insufficient drying and low drying efficiency.

[0071] <Clothing Processing Equipment>

[0072] like Figures 1a to 7 As shown, this embodiment provides a garment processing device, including:

[0073] The drum 1 has a main air inlet 111 formed on one of its cylinder wall and cylinder opening 13, and an auxiliary air inlet 231 and an air outlet 232 formed on the other; the drum 1 is rotatable.

[0074] The drying assembly 2 has a main air duct and an auxiliary air duct 243. The main air duct is connected between the main air inlet 111 and the air outlet 232, and the main air duct also has an auxiliary air outlet 333. The auxiliary air duct 243 is connected between the auxiliary air inlet 231 and the auxiliary air outlet 333. A main fan 22 is installed on the main air duct, and an auxiliary fan 25 is installed on the auxiliary air duct 243.

[0075] The flow area of ​​the auxiliary air inlet 231 is smaller than that of the main air inlet 111, so that the flow velocity of the auxiliary drying airflow at the auxiliary air inlet 231 is greater than that of the main drying airflow at the main air inlet 111. Therefore, the auxiliary drying airflow can first flow in the opposite direction to the main drying airflow, and then be discharged through the air outlet 232 with the main drying airflow. Preferably, the flow area of ​​the auxiliary air inlet is much smaller than that of the main air inlet, so that the flow velocity of the auxiliary drying airflow at the auxiliary air inlet 231 is much greater than that of the main drying airflow at the main air inlet 111. The flow velocity of the auxiliary drying airflow at the auxiliary air inlet 231 is greater than 100 m / s.

[0076] Among them, the auxiliary drying airflow is the drying airflow that enters the drum 1 through the auxiliary air inlet 231, and the main drying airflow is the drying airflow that enters the drum 1 through the main air inlet 111.

[0077] When the auxiliary drying airflow flows in the opposite direction to the main drying airflow, it can blow clothes near the drum opening 13 towards the middle of the drum 1, causing the clothes to unfold, reducing and fixing the clothes, and preventing the clothes from rolling into clumps. The speed of the main fan 22 and / or the speed of the auxiliary fan 25 can be adjusted according to the position of the clothes in the drum 1 during the drying process, so that the clothes are fully unfolded and in a fluffy state under the action of the two drying airflows, and then come into contact with the drying airflow, improving the matching degree between the unfolded surface area of ​​the clothes and the flow rate of the drying airflow, improving the drying efficiency and the smoothness of the clothes after drying and care. This solves the problem that existing mainstream dryers cannot keep the clothes in a fluffy state as much as possible during the drying process, resulting in insufficient contact between the clothes and the drying airflow, incomplete drying, low drying efficiency, and wrinkles still remaining after drying. It also solves the problem that existing mainstream dryers cannot adjust the flow rate of the drying airflow according to the position of the clothes.

[0078] Preferably, the garment processing equipment is a dryer, especially a heat pump dryer; the garment processing equipment also includes a drum drive mechanism and a drum motor 41. The drum drive mechanism includes a first belt 431, a second belt 432, a first pulley 421, a second pulley 422, and a third pulley 423; the drum motor 41 and the first pulley 421 are driven together, the second pulley 422 and the third pulley 423 are coaxially arranged, the outer diameter of the second pulley 422 is smaller than the outer diameter of the third pulley 423, and the second pulley 422 is located at one axial end of the third pulley 423; the first pulley 421 and the second pulley 422 are connected by the first belt 431, and the third pulley 423 and the drum 1 are connected by the second belt 432; when the drum motor 41 is running, the drum 1 rotates under the action of the first belt 431 and the second belt 432; controlling the forward or reverse rotation of the drum motor 41 can make the drum 1 rotate in either direction.

[0079] The drum wall of the drum 1 includes a rear wall 11, which is located behind and opposite to the drum opening 13. A main air inlet 111 is formed on the rear wall 11, located radially inward and with its outlet facing the drum opening 13. The drying assembly 2 includes a first housing 23, which has an auxiliary air inlet 231 and an outlet 232. The outlet of the auxiliary air inlet 231 faces the rear wall 11. The auxiliary air inlet 231 is positioned higher than the outlet 232. Specifically, the first housing 23 has an annular structure. The drum has a ring-shaped structure surrounding the opening 13. The end of the ring structure near the opening 13 is sealed to the drum 1, and the end of the ring structure away from the opening 13 is tapered. An auxiliary air inlet 231 is formed on the side wall of the ring structure, and an air outlet 232 is formed at the radial bottom of the ring structure. The rear wall 11 of the drum includes multiple air inlet zones, which are spaced apart circumferentially along the rear wall 11 of the drum. Each air inlet zone has multiple main air inlets 111. The main drying airflow entering the drum 1 through the multiple main air inlets 111 flows toward the opening 13, and there is a gap between the main drying airflow and the drum peripheral wall 12.

[0080] The drum wall of the drum 1 also includes a drum peripheral wall 12, which surrounds one axial end of the drum rear wall 11. An auxiliary air inlet 231 is located near the drum peripheral wall 12. The auxiliary drying airflow entering the drum 1 through the auxiliary air inlet 231 first flows towards the drum rear wall 11 and close to the drum peripheral wall 12, and then flows towards the drum opening 13 with the main drying airflow. The optimized design of the positions of the main air inlet 111 and the auxiliary air inlet 231, as well as the flow rates of the main and auxiliary drying airflows, ensures that the clothes are fully unfolded under the action of the main and auxiliary drying airflows, reducing the number and range of wrinkles. At the same time, the airflow and clothes are in full contact, improving drying efficiency and solving the problem of low drying efficiency caused by low airflow. It also solves the problem of insufficient unfolding and uneven drying caused by unreasonable design of the main air inlet 111 and the auxiliary air inlet 231, which prevents the clothes from achieving the expected drying and care effect. Furthermore, it solves the problem of clothes easily rolling into clumps in the drum 1 and easily accumulating at the dryer door seal during the drying process.

[0081] To address the problem of high resistance in the drying airflow caused by an unreasonable main air duct structure design, this embodiment proposes that the main air duct includes a main air outlet duct, two chambers, and a main air inlet duct 211; two chambers are installed within the two chambers, and the two chambers and the compressor are connected via refrigerant pipes; the two chambers include an evaporator 341 and a condenser 342, where the evaporator 341 is used to dehumidify the drying airflow, and the condenser 342 is used to heat the drying airflow; the sidewalls of the two chambers form a two-chamber inlet 331, a two-chamber main outlet 332, and a two-chamber auxiliary outlet; the two-chamber auxiliary outlet is an auxiliary air outlet 333; preferably, the two-chamber main outlet 332 and the two-chamber auxiliary outlet are both located downstream of the condenser 342, so that the auxiliary drying airflow is dry hot air;

[0082] A main air outlet duct connects the inlet 331 and outlet 232 of the two chambers, and a main air inlet duct 211 connects the main outlet 332 and inlet 111 of the two chambers.

[0083] Specifically, the drying assembly 2 also includes a two-electrode box, which includes a two-electrode box body 31 and a two-electrode cover 32. The two-electrode box body 31 is fixedly installed, and the two-electrode cover 32 covers the two-electrode box body 31, forming a two-electrode cavity between the two-electrode cover 32 and the two-electrode box body 31. A two-electrode cavity inlet 331 is formed on the front side of the two-electrode cavity, and a two-electrode cavity main outlet 332 is formed on the rear side of the two-electrode cavity. An auxiliary outlet of the two-electrode cavity is formed on the left or right side of the two-electrode cavity. An evaporator 341 and a condenser 342 are sequentially arranged in the two-electrode cavity along the flow direction of the main drying airflow.

[0084] The first housing 23 also forms a first main air outlet 233, which is located at the bottom of the annular structure and the air inlet and air outlet 232 of the first main air outlet 233 are connected; the drying assembly 2 also includes a second housing 51, which is disposed at the bottom of the first main air outlet 233 and forms a second main air outlet 511; the second main air outlet 511 and the first main air outlet 233 are connected to form a main air outlet; preferably, the first housing 23 and the second housing 51 are integrally formed.

[0085] Regarding the issue of fixing the roller 1 and the two containers, this embodiment proposes that the axis of the roller 1 is along the horizontal direction, and the garment processing equipment also includes a chassis 5 and a support plate 63. The chassis 5 is located below the roller 1; the chassis 5 is provided with a two containers 31 or the chassis 5 and the two containers 31 are integrally formed; the chassis 5 is provided with a second shell 51 or the chassis 5 and the second shell 51 are integrally formed.

[0086] The support plate 63 is mounted on the chassis 5 and located on the rear side of the rear wall 11 of the drum; the drying assembly 2 also includes an air inlet shell 21, which is mounted on the support plate 63 and forms a main air inlet channel 211 between the air inlet shell 21 and the support plate 63; preferably, the air inlet shell 21 is located on one side of the support plate 63 and the drum 1 is located on the other side of the support plate 63; specifically, a second housing 51 is provided on the front side of the chassis 5, and the second housing 51 forms a second main air outlet channel 511, which includes a front air outlet 512, a rear air outlet 513, and a top air outlet 514 communicating with the second main air outlet channel 511; the first main air outlet The air outlet of the air duct 233 is connected to the top air outlet 514, and the rear air outlet 513 is connected to the inlet 331 of the two chambers. A front cover 61 is provided at the front air outlet 512 to seal the front air outlet 512. The second shell 51 also forms a heat dissipation channel 52. The air inlet of the heat dissipation channel 52 is close to the drum motor 41. A heat dissipation fan 62 is provided in the heat dissipation channel 52 for the heat dissipation of the drum motor 41. The support plate 63 forms multiple ventilation openings 631, and the multiple ventilation openings 631 and multiple air inlet areas are arranged one-to-one. The main drying airflow in the main air inlet duct 211 enters the drum 1 through the multiple ventilation openings 631 and the multiple main air inlets 111.

[0087] Furthermore, a main fan 22 is provided at one end of the main air inlet duct 211 near the two chambers. The main fan 22 connects the main air inlet duct 211 and the main outlet 332 of the two chambers. Under the action of the main fan 22, the drying airflow in the two chambers can enter the drum 1 through the main air inlet duct 211. Specifically, the main fan 22 includes a main fan blade 221 and a main motor 222. The main fan blade 221 is a centrifugal fan blade, and the main motor 222 is a DC motor. The air inlet shell 21 and the support plate 63 also form a main fan chamber, and the main fan blade 221 is rotatably arranged in the main fan chamber.

[0088] An auxiliary fan 25 is installed at one end of the auxiliary air duct 243 near the auxiliary air outlet 333. The auxiliary fan 25 connects the auxiliary air duct 243 and the auxiliary air outlet 333. The end of the auxiliary air duct 243 near the auxiliary air inlet 231 is tapered, which greatly reduces the cross-sectional area of ​​the auxiliary air inlet 231 (its cross-sectional area ≤ 500 mm^2) and increases the wind speed of the auxiliary air inlet 231. The wind speed of the auxiliary drying airflow at the auxiliary air inlet 231 is much greater than the flow speed of the main drying airflow at the main air inlet 111, causing the clothes located at the drum opening 13 to be blown open by the high-speed wind, and the wind in the middle of the drum 1 flows in a spiral shape.

[0089] The drying assembly 2 includes an auxiliary air duct shell 241 and an auxiliary air duct cover 242; the outer side wall of the two-piece housing 31 forms an installation structure 53; preferably, the installation structure is a groove, the auxiliary air duct shell 241 is mounted on the chassis 5 and embedded in the groove, providing space for the installation of the left and right side panels of the dryer's outer shell; the auxiliary air duct cover 242 covers the auxiliary air duct shell 241, and the auxiliary air duct cover 242 and the auxiliary air duct shell 241 form an auxiliary air duct 243; an auxiliary heating element 64 is provided in the auxiliary air duct 243 for heating the auxiliary drying air. The auxiliary fan 25 includes an auxiliary fan housing 251, an auxiliary fan cover 252, an auxiliary fan blade 253, and an auxiliary motor 254. The auxiliary fan housing 251 and the auxiliary fan cover 252 are fastened together to form an auxiliary fan cavity, which is connected to the auxiliary air duct 243 and the auxiliary air outlet 333. The auxiliary fan blade 253 is rotatably disposed inside the auxiliary fan cavity, and the auxiliary motor 254 is disposed outside the auxiliary fan cavity and is drivenly connected to the auxiliary fan blade 253. Preferably, the auxiliary air duct cover 242 and the auxiliary fan cover 252 are integrally formed.

[0090] To address the problem of clothing wrinkles failing to unfold when humidity is low, this embodiment proposes that an atomizer 351 be installed at one end of the auxiliary air duct 243 near the auxiliary air inlet 231. The atomizer 351 can generate atomized water droplets to moisten the auxiliary airflow. Specifically, the clothing processing equipment also includes a water box 353, which is located on the upper side of the roller 1. The water box 353 can store water, and the water box 353 and the atomizer 351 are connected by a water supply pipe 352. The water in the water box 353 can enter the atomizer 351 through the water supply pipe 352. Under the action of the atomizer 351, the water becomes atomized and mixes with the auxiliary drying airflow. It then comes into contact with the clothing along with the auxiliary drying airflow and moistens the clothing, preventing the clothing from shrinking and deforming severely due to excessively low humidity. The water box 353 has a water inlet, through which external water can be input into the water box 353, or condensate produced by the evaporator 341 can be input into the water box 353.

[0091] <Control Methods>

[0092] like Figure 8As shown, this embodiment also provides a control method for a garment processing device, wherein the garment processing device is any of the garment processing devices described above, and the garment processing device is equipped with a drying program; when the garment processing device runs the drying program, the control method includes:

[0093] S1. Start the compressor and obtain the current temperature of the drying airflow at the air outlet 232;

[0094] S2. Compare the current temperature with the preset temperature;

[0095] S3. Based on the comparison between the current temperature and the preset temperature, control the main fan 22, the auxiliary fan 25 and the auxiliary heating element 64.

[0096] Specifically, a temperature sensor is installed at the air outlet 232 to detect the current temperature of the drying airflow at the air outlet 232;

[0097] To address the problem of clothing not being able to stretch out promptly and fully due to improper control of the main fan 22, auxiliary fan 25, and auxiliary heating element 64, this embodiment proposes that the preset temperature includes a first preset temperature and a second preset temperature; S3 includes:

[0098] When the current temperature is lower than the first preset temperature, the main fan 22 is controlled to rotate at the first speed, the auxiliary air outlet is controlled to open, and the auxiliary fan 25 is controlled to rotate and time; under the action of the two airflows, the clothes gradually unfold and loosen;

[0099] When the auxiliary fan 25 has been rotating for the first preset time, the auxiliary heating element 64 is controlled to run; the auxiliary drying airflow is heated to improve the temperature rise rate of the clothing processing equipment in the early stage of drying.

[0100] When the current temperature is greater than or equal to the second preset temperature, the auxiliary heating element 64 is stopped and a timer is started to prevent the auxiliary drying airflow from being too hot and damaging the clothes.

[0101] When the auxiliary heating element 64 stops for a period of time that is two preset durations, the auxiliary fan 25 is stopped and the auxiliary air outlet is closed; this reduces the time that the auxiliary heating element 64 is exposed to the auxiliary drying airflow and prevents lint from accumulating on the surface of the auxiliary heating element 64.

[0102] The second preset temperature is greater than the first preset temperature;

[0103] The above steps constitute the first stage of the drying process. Based on the temperature changes of the clothes, the auxiliary fan 25 and the auxiliary heating element 64 are activated in a timely manner. Both the main drying airflow and the auxiliary drying airflow enter the drum 1. Under the action of the main drying airflow, the auxiliary drying airflow, and the rotation of the drum 1, the clothes are fully stretched in the middle of the drum 1. At the same time, the auxiliary drying airflow is heated by the auxiliary heating element 64.

[0104] To address the problem of incomplete clothes drying caused by improper control of the main fan 22 and auxiliary fan 25, this embodiment proposes that the preset temperature also includes a third preset temperature; S3 also includes:

[0105] During the time from when the auxiliary heating element 64 stops to when the auxiliary fan 25 stops, if the current temperature is greater than or equal to the first preset temperature, the main fan 22 is controlled to rotate at the second speed.

[0106] When the current temperature is greater than or equal to the third preset temperature, control the auxiliary air outlet to open and the auxiliary fan 25 to rotate.

[0107] The second rotational speed is greater than the first rotational speed;

[0108] The above steps constitute the second stage of the drying process. The speed of the main fan 22 is adjusted in time, the auxiliary air outlet is opened and the auxiliary fan 25 is started. The main drying airflow and the auxiliary drying airflow enter the drum 1 and act on the clothes. On the one hand, the clothes are fully unfolded to avoid wrinkles, and on the other hand, the airflow and the clothes are in full contact to improve the drying efficiency.

[0109] To address the problem of clothing shrinkage and deformation caused by prolonged exposure to drying airflow, this embodiment proposes a control method that further includes:

[0110] Obtain the current humidity of the load inside drum 1;

[0111] Compare the current humidity with the preset humidity;

[0112] When the current humidity is lower than the second preset humidity, the main fan 22, auxiliary fan 25 and compressor are all stopped.

[0113] The above steps constitute the third stage of the nursing procedure, which involves stopping the main fan 22, auxiliary fan 25, and compressor to cool the clothing promptly.

[0114] In summary, by incorporating a main air duct and an auxiliary air duct 243 into the dryer, compared to a dryer with a single air duct, the combined effect of two airflows can direct clothing that would otherwise easily clump together within the drum 1 and is located at the lower left front (7 o'clock position) of the drum 1 towards the center of the drum 1, preventing the clothing from clumping together during the drying process. Through the opposing airflows and adjustment of the main fan 22's rotation speed, clothing can be dried in a better stretched state. This allows bent portions of the clothing fibers to stretch while other portions bend, and the bending positions can be frequently changed to reduce the bending amplitude, resulting in the clothing fibers drying in a state of alternating stretching and bending. This reduces and fixes wrinkles, thereby improving the smoothness and drying uniformity of the clothing, achieving better care results.

[0115] Example 2

[0116] Unlike Example 1, the control method further includes:

[0117] During the time from when the auxiliary heating element 64 stops to when the auxiliary fan 25 stops, if the current temperature is greater than or equal to the first preset temperature, the main fan 22 is controlled to rotate at the second speed.

[0118] Obtain the current humidity of the load inside drum 1;

[0119] Compare the current humidity with the preset humidity;

[0120] When the current humidity is lower than the first preset humidity, control the auxiliary air outlet to open and the auxiliary fan 25 to rotate.

[0121] The second preset humidity is less than the first preset humidity.

[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 garment processing device, characterized in that, include: A drum (1) includes a drum opening and a drum rear wall (11); the drum rear wall (11) is located behind the drum opening (13) and is opposite to the drum opening (13), and the drum rear wall (11) has a main air inlet (111); an auxiliary air inlet (231) and an air outlet (232) are formed at the drum opening (13), and the air outlet direction of the auxiliary air inlet (231) is towards the drum rear wall (11); The drying assembly (2) has a main air duct and an auxiliary air duct (243); the main air duct is connected between the main air inlet (111) and the air outlet (232), and the main air duct has an auxiliary air outlet (333); the auxiliary air duct (243) is connected between the auxiliary air inlet (231) and the auxiliary air outlet (333); the auxiliary air outlet (333) can be controlled to open or close, and an auxiliary heating element (64) is provided in the auxiliary air duct (243); the main air duct includes two chambers, and two heat exchangers are provided in the two chambers, and the two heat exchangers and the compressor are connected through a refrigerant pipe; a main fan (22) is provided on the main air duct, and an auxiliary fan (25) is provided on the auxiliary air duct (243); The flow area of ​​the auxiliary air inlet (231) is smaller than that of the main air inlet (111); The drying airflow entering the drum (1) through the auxiliary air inlet (231) is the auxiliary drying airflow, and the drying airflow entering the drum (1) through the main air inlet (111) is the main drying airflow. When the auxiliary drying airflow and the main drying airflow enter the drum (1), the auxiliary drying airflow can first flow in the opposite direction to the main drying airflow, and then be discharged through the air outlet (232) along with the main drying airflow. The compressor, main fan (22), auxiliary fan (25), and auxiliary heating element (64) are configured as follows: When the garment processing equipment runs the drying program, it starts the compressor and obtains the current temperature of the drying airflow at the air outlet (232), compares the current temperature with the preset temperature, and controls the main fan (22), auxiliary fan (25) and auxiliary heating element (64) according to the comparison result of the current temperature and the preset temperature. The preset temperature includes a first preset temperature, a second preset temperature, and a third preset temperature, wherein the second preset temperature is greater than the first preset temperature, and the third preset temperature is greater than the first preset temperature but less than the second preset temperature; the step of controlling the main fan (22), the auxiliary fan (25), and the auxiliary heating element (64) based on the comparison result between the current temperature and the preset temperature includes: When the current temperature is less than the first preset temperature, the main fan (22) is controlled to rotate at the first speed, the auxiliary air outlet (333) is controlled to open, and the auxiliary fan (25) is controlled to rotate and time; when the rotation time of the auxiliary fan (25) reaches the first preset time, the auxiliary heating element (64) is controlled to run. When the current temperature is greater than or equal to the second preset temperature, the auxiliary heating element (64) is controlled to stop and a timer is started; when the stop time of the auxiliary heating element (64) reaches the second preset time, the auxiliary fan (25) is controlled to stop and the auxiliary air outlet (333) is closed. During the time from the stopping of the auxiliary heating element (64) to the stopping of the auxiliary fan (25), when the current temperature is greater than or equal to the first preset temperature, the main fan (22) is controlled to rotate at a second speed; wherein the second speed is greater than the first speed; When the current temperature is greater than or equal to the third preset temperature, the auxiliary air outlet (333) is opened and the auxiliary fan (25) is rotated.

2. The garment processing equipment according to claim 1, characterized in that, The rear wall (11) of the drum includes multiple air inlet zones, which are spaced apart circumferentially along the rear wall (11) of the drum, and each air inlet zone has multiple main air inlets (111); the drum (1) also includes a drum peripheral wall (12), through which the main drying airflow enters the drum (1) via the multiple main air inlets (111) and flows toward the drum opening (13), and there is a gap between the main drying airflow and the drum peripheral wall (12); The auxiliary air inlet (231) is close to the drum peripheral wall (12); the auxiliary drying airflow entering the drum (1) through the auxiliary air inlet (231) can first flow towards the drum rear wall (11) and close to the drum peripheral wall (12), and then flow towards the drum opening (13) with the main drying airflow.

3. The garment processing equipment according to claim 1, characterized in that, The main air duct includes a main air outlet (233) and a main air inlet (211); the side walls of the two chambers are formed with a two-chamber inlet (331), a two-chamber main outlet (332), and a two-chamber auxiliary outlet communicating with the two chambers; the two-chamber auxiliary outlet is the auxiliary air outlet (333). The main air outlet duct (233) connects the inlet (331) and outlet (232) of the two chambers, and the main air inlet duct (211) connects the main outlet (332) and inlet (111) of the two chambers.

4. The garment processing equipment according to claim 3, characterized in that, A main fan (22) is provided at one end of the main air inlet duct (211) near the main outlet (332) of the two chambers. The main fan (22) connects the main air inlet duct (211) and the main outlet (332) of the two chambers. The motor of the main fan (22) is a DC motor. An auxiliary fan (25) is provided at one end of the auxiliary air duct (243) near the auxiliary air outlet (333), and the auxiliary fan (25) connects the auxiliary air duct (243) and the auxiliary air outlet (333); the end of the auxiliary air duct (243) near the auxiliary air inlet (231) is tapered, and the auxiliary heating element (64) is located downstream of the auxiliary fan (25).

5. The garment processing equipment according to claim 4, characterized in that, The drying assembly (2) includes a first housing (23) with an annular structure. The annular structure surrounds the cylinder opening (13) and has an auxiliary air inlet (231) and an air outlet (232). The position of the auxiliary air inlet (231) is higher than that of the air outlet (232).

6. The garment processing equipment according to claim 5, characterized in that, The first housing (23) also forms a first main air outlet (233), which is located at the bottom of the annular structure and the air inlet and air outlet (232) of the first main air outlet (233) are connected. The drying assembly (2) includes a second housing (51), which is disposed at the bottom of the first main air outlet (233) and forms a second main air outlet (511); the second main air outlet (511) and the first main air outlet (233) are connected to form the main air outlet; The garment processing equipment also includes a chassis (5) and a support plate (63). The chassis (5) is located below the roller (1), and the second housing (51) is provided on the chassis (5). The support plate (63) is located on the chassis (5) and is located on the rear side of the rear wall (11) of the roller. The drying assembly also includes an air inlet shell (21), which is disposed on the support plate (63) and the main air inlet duct (211) is formed between the air inlet shell (21) and the support plate (63).

7. The garment processing equipment according to claim 6, characterized in that, The drying assembly also includes a two-piece box, which is disposed between the chassis (5) and the drum (1). The two-piece box includes a two-piece box body (31) and a two-piece cover (32). The two-piece box body (31) is disposed on the chassis (5) or integrally formed with the chassis (5). The two-piece cover (32) covers the two-piece box body (31) and forms the two-piece cavity. The two-piece cavity inlet (331) is formed on the front side of the two-piece cavity, the two-piece cavity main outlet (332) is formed on the rear side of the two-piece cavity, and the two-piece cavity auxiliary outlet is formed on the left or right side of the two-piece cavity.

8. The garment processing apparatus according to any one of claims 1 to 7, characterized in that, The main fan (22) and auxiliary fan (25) are configured as follows: During the time from the stopping of the auxiliary heating element (64) to the stopping of the auxiliary fan (25), when the current temperature is greater than or equal to the first preset temperature, the main fan (22) is controlled to rotate at the second speed. Obtain the current humidity of the load inside the drum (1); Compare the current humidity with the preset humidity; When the current humidity is less than the first preset humidity, the auxiliary air outlet (333) is opened and the auxiliary fan (25) is rotated.

9. The garment processing equipment according to claim 8, characterized in that, The compressor, main fan (22) and auxiliary fan (25) are configured as follows: When the current humidity is less than the second preset humidity, the main fan (22), auxiliary fan (25) and compressor are all stopped. The second preset humidity is less than the first preset humidity.

Images