Clothes processing device and drying control method of clothes processing device

Abstract

The present application provides a clothing processing device and a drying control method for the clothing processing device, belonging to the field of clothing processing devices. The clothing processing device includes a heat pump assembly for heating airflow in a drying air duct. By controlling a spray device to spray an evaporator in the heat pump assembly, combined with the switching of a bypass air duct, the refrigerant in the evaporator can fully exchange heat with the spray water, absorbing heat from the spray water, thereby increasing the temperature of the refrigerant entering the compressor. This can then quickly increase the temperature rise rate of the heat pump assembly during operation, shorten the drying time, and improve the drying effect of the clothes.

Description

Technical Field

[0001] The present application relates to the technical field of clothing processing equipment, and in particular to a clothing processing equipment and a drying control method for the clothing processing equipment. Background Art

[0002] For a closed heat pump drying system, during drying, the energy of the heat pump drying equipment mainly comes from the input power of the compressor. Since the heat capacity of the heat pump drying equipment and the load to be dried is large, and the input power of the compressor is small in the initial stage of drying, the heat pump drying temperature rises slowly in the initial stage of drying, which restricts the heat pump drying speed.

[0003] In order to quickly increase the drying temperature, the conventional approach is to add electric auxiliary heating to the drum inlet air duct of the clothes processing equipment and turn on the electric auxiliary heating simultaneously when the drying is turned on. However, this method has the following problems:

[0004] 1. The local temperature of electric auxiliary heating is high, and most of the air duct components are made of plastic, which poses certain safety hazards.

[0005] 2. Arranging electric auxiliary heating in the air duct affects the air volume of the drying system, and thus affects the drying speed, which is particularly obvious when drying multiple loads.

[0006] 3. The electric auxiliary heating device needs to be equipped with auxiliary equipment such as temperature sensing package, thermostat, fuse, etc., which is relatively expensive.

[0007] 4. Electric auxiliary heating has low energy efficiency and poor energy saving effect. Summary of the Invention

[0008] To overcome the problem that existing clothing processing equipment has many disadvantages when using electric auxiliary heating to increase the drying temperature, the embodiments of the present application provide a clothing processing equipment and a drying control method for the clothing processing equipment. By controlling the spray device to spray the evaporator during the drying process, and combining the switching of the bypass air duct, the refrigerant in the evaporator can fully exchange heat with the spray water, absorbing the heat in the spray water, thereby increasing the temperature of the refrigerant entering the compressor, and then quickly increasing the temperature rise rate of the heat pump component during operation, shortening the drying time and improving the drying effect of the clothes. Specifically:

[0009] A first aspect of an embodiment of the present application provides a clothes processing device, comprising:

[0010] laundry treatment drum;

[0011] The drying air duct is connected to the clothes processing drum to form a circulating air path;

[0012] A heat pump assembly is provided on the air duct path of the drying air duct and is used to heat the air flow in the drying air duct. The heat pump assembly includes a heat pump system consisting of a compressor, an evaporator and a condenser;

[0013] The fan is used to provide the flow power of the airflow in the drying duct, and make the airflow enter from the evaporator side and be discharged from the condenser side;

[0014] A bypass air duct, wherein the air inlet end of the bypass air duct is connected to the air inlet side of the evaporator, and the air outlet end of the bypass air duct is connected between the air outlet side of the evaporator and the air inlet side of the condenser. The bypass air duct can be controlled to be opened or closed. When the bypass air duct is opened, the air flow through the evaporator is blocked, and when the bypass air duct is closed, the air flow through the evaporator is allowed;

[0015] A spray device, the water inlet end of the spray device is used to connect to the tap water pipeline, and the discharge end is directed toward the evaporator, so as to spray the evaporator with tap water whose temperature is higher than the refrigerant temperature inside the evaporator;

[0016] The spray device is controlled to be turned on when the bypass air duct is opened, and is controlled to be turned off when the bypass air duct is closed.

[0017] In the above technical solution, the clothes processing device has a drying program, and the clothes processing device further includes:

[0018] The controller controls the heat pump assembly and the bypass air duct to open when the clothes are processed and the drying program is running, and controls the spraying device to spray the evaporator in the heat pump assembly.

[0019] In the above technical solution, the clothes processing device further includes:

[0020] A temperature sensing device and a timer. The temperature sensing device is used to obtain the temperature value of the air outlet side of the condenser, and the timer is used to calculate the opening time of the spray device;

[0021] The controller is used to control whether the bypass duct is closed and whether the spray device is closed according to the temperature value and the opening time.

[0022] In the above technical solution, the clothes processing device further includes:

[0023] The damper is rotatably arranged at the air inlet end of the bypass air duct, and when the damper rotates, it has a first working position for opening the air inlet end of the bypass air duct and a second working position for closing the air inlet end of the bypass air duct;

[0024] When the damper is in the first working position, it is located on the air inlet side of the evaporator to block the air flow through the evaporator while opening the bypass air duct. When the damper is in the second working position, it avoids the air inlet side of the evaporator to allow the air flow through the evaporator while closing the bypass air duct.

[0025] In the above technical solution, the spray device is arranged on the top of the evaporator and has a spray valve for spraying water to the top of the evaporator, so as to be able to spray the evaporator from top to bottom.

[0026] In the above technical solution, the heat pump assembly includes two boxes, each of which has a cavity formed inside and an air inlet and an exhaust port formed on the surface thereof, and the two boxes are connected to the drying air duct through the air inlet and the exhaust port;

[0027] The heat pump system is arranged in the cavity, and the evaporator in the heat pump system is arranged close to the air inlet, and the condenser is arranged close to the exhaust port.

[0028] In the above technical solution, the top of the evaporator is set at a distance from the top of the two device boxes, the side of the evaporator close to the air inlet is set at a distance from the air inlet, and the side of the evaporator close to the condenser is set at a distance from the condenser, so as to define a bypass air duct with the air inlet end located on the air inlet side of the evaporator and the exhaust end located between the exhaust side of the evaporator and the air inlet side of the condenser.

[0029] In the above technical solution, a drainage pipe is further provided at the bottom of the two boxes, the water inlet end of the drainage pipe is connected to the bottom of the cavity, and the drainage end of the drainage pipe is connected to the clothes processing drum.

[0030] In the above technical solution, the two-device box includes a two-device box base and a two-device box cover. The top of the two-device box base has an opening, and the two-device box cover is arranged at the opening position to define the two-device box with a cavity inside.

[0031] The spray device is arranged on the covers of the two device boxes, and the spray device has a spray valve facing the top of the evaporator, and the drain pipe is connected to the bottom of the base of the two device boxes.

[0032] In the above technical solution, the heat pump system further includes a throttle valve connected between the evaporator and the condenser;

[0033] In the heat pump system, the exhaust port of the compressor is connected to the air inlet of the condenser, the exhaust port of the condenser is connected to the air inlet of the evaporator through a throttle valve, and the exhaust port of the evaporator is connected to the air inlet of the compressor;

[0034] The compressor, condenser, throttle valve and evaporator connected in sequence form a circulating refrigerant flow path through the refrigerant pipeline.

[0035] In the above technical solution, the clothing processing device is a drum dryer or a drum washer-dryer.

[0036] A second aspect of the present application provides a drying control method for a clothes processing device, which is applied to the clothes processing device provided in the first aspect of the present application. The drying control method includes:

[0037] Under the drying program, the heat pump assembly, bypass duct, and spray device are turned on, and the temperature value of the air outlet side of the condenser in the heat pump assembly and the spraying time of the spray device are obtained;

[0038] Determine whether to close the bypass air duct and the spray device based on the temperature value and / or the spraying time.

[0039] In the above technical solution, determining whether to close the bypass air duct and the spray device based on the temperature value and / or the spraying duration includes:

[0040] Determine whether the spraying time is greater than or equal to the preset time;

[0041] If so, close the bypass duct and sprinkler system;

[0042] If not, it is determined whether the temperature value is greater than or equal to a preset temperature value, and based on the determination result, it is determined whether to close the bypass air duct and the spray device.

[0043] In the above technical solution, determining whether the temperature value is greater than or equal to the preset temperature value, and determining whether to close the bypass air duct and the spray device based on the determination result, includes:

[0044] If the temperature value is greater than or equal to the preset temperature value, the bypass duct and the sprinkler device are closed;

[0045] If the temperature value is lower than the preset temperature value, the bypass air duct and the sprinkler device are kept open.

[0046] In the above technical solution, the drying control method further includes:

[0047] In response to a start instruction of a drying program, the heat pump assembly, the bypass air duct and the spray device are controlled to open.

[0048] By adopting the above technical solution, the present application has the following beneficial effects compared with the prior art.

[0049] In the embodiment of the present application, by controlling the spray device to spray the evaporator under the drying program, and combining with the switching of the bypass air duct, the refrigerant in the evaporator can fully exchange heat with the spray water, absorb the heat in the spray water, thereby increasing the temperature of the refrigerant entering the compressor, and then can quickly increase the temperature rise rate of the heat pump component during operation, shorten the drying time, and improve the drying effect of clothes. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic diagram of the structure of the clothing processing device in the embodiment of the present application. Figure 1 , the damper in the figure is in the open state, and shows the flow path of the air flow in the air duct;

[0051] Figure 2 This is a schematic diagram of the structure of the clothing processing device in the embodiment of the present application. Figure 1 , the damper in the figure is in a closed state, and shows the flow path of the air flow in the air duct;

[0052] Figure 3 This is a schematic diagram of the temperature control of the spray device in the embodiment of the present application;

[0053] Figure 4 This is a schematic diagram of the explosion structure of the heat pump assembly in the embodiment of the present application;

[0054] Figure 5 This is a schematic diagram of the structure of the evaporator when it is sprayed in an embodiment of the present application.

[0055] in:

[0056] 100-Clothes treatment drum;

[0057] 200-drying air duct;

[0058] 300-heat pump assembly; 10-compressor; 20-evaporator; 30-condenser; 40-drain box; 401-drain box base; 402-drain box cover; 50-drain pipe; 60-throttle valve;

[0059] 400-fan;

[0060] 500-Bypass duct;

[0061] 600-Spraying device;

[0062] 700-temperature sensing device;

[0063] 800-Damper. DETAILED DESCRIPTION

[0064] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0065] Throughout the specification and claims, the following terms have at least the meanings explicitly associated herein, unless the context dictates otherwise. The meanings identified below do not necessarily limit the terms, but merely provide illustrative examples of the terms.

[0066] In the description of the present invention, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may. Similarly, the phrase "in some embodiments," as used herein, when used multiple times, does not necessarily refer to the same embodiment, although it may. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or" unless the context clearly dictates otherwise. The term "based on" is not exclusive and allows for being based on additional factors not described unless the context clearly dictates otherwise. The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The scope of the present invention is limited solely by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting but merely illustrative of some of the many possible embodiments of the claimed invention. The various embodiments provided herein should not be construed as limiting the scope of the invention.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0069] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0070] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0071] Background

[0072] For a closed heat pump drying system, during drying, the energy of the heat pump drying equipment mainly comes from the input power of the compressor. Since the heat capacity of the heat pump drying equipment and the load to be dried is large, and the input power of the compressor is small in the initial stage of drying, the heat pump drying temperature rises slowly in the initial stage of drying, which restricts the heat pump drying speed.

[0073] In order to quickly increase the drying temperature, the conventional approach is to add electric auxiliary heating to the drum inlet air duct of the clothes processing equipment and turn on the electric auxiliary heating simultaneously when the drying is turned on. However, this method has the following problems:

[0074] 1. The local temperature of electric auxiliary heating is high, and most of the air duct components are made of plastic, which poses certain safety hazards.

[0075] 2. Arranging electric auxiliary heating in the air duct affects the air volume of the drying system, and thus affects the drying speed, which is particularly obvious when drying multiple loads.

[0076] 3. The electric auxiliary heating device needs to be equipped with auxiliary equipment such as temperature sensing package, thermostat, fuse, etc., which is relatively expensive.

[0077] 4. Electric auxiliary heating has low energy efficiency and poor energy saving effect.

[0078] Based on this, Figure 1-Figure 5 As shown, the first aspect of the embodiment of the present application provides a clothes processing device, comprising:

[0079] Clothes treatment drum 100;

[0080] The drying air duct 200 communicates with the clothes processing drum 100 to form a circulating air path;

[0081] The heat pump assembly 300 is provided on the air duct path of the drying air duct 200 and is used to heat the air flow in the drying air duct 200. The heat pump assembly 300 includes a heat pump system consisting of a compressor 10, an evaporator 20 and a condenser 30;

[0082] The fan 400 is used to provide flow power for the airflow in the drying duct 200, and to make the airflow enter from the evaporator 20 side and be discharged from the condenser 30 side;

[0083] The bypass air duct 500 has an air inlet end connected to the air inlet side of the evaporator 20 and an air outlet end connected between the air outlet side of the evaporator 20 and the air inlet side of the condenser 30. The bypass air duct 500 can be controlled to open or close. When the bypass air duct 500 is opened, air flow through the evaporator 20 is blocked. When the bypass air duct 500 is closed, air flow through the evaporator is allowed.

[0084] A spray device 600, the water inlet end of the spray device 600 is used to connect to the tap water pipeline, and the discharge end is directed toward the evaporator 20, so as to spray the evaporator 20 with tap water having a temperature higher than the temperature of the refrigerant inside the evaporator;

[0085] The spray device 600 is controlled to be opened when the bypass air duct 500 is opened, and is controlled to be closed when the bypass air duct 500 is closed.

[0086] In the embodiment of the present application, by controlling the spray device 600 to spray the evaporator 20 under the drying program, and combining with the switching of the bypass air duct 500, the refrigerant in the evaporator 20 can fully exchange heat with the spray water, absorb the heat in the spray water, thereby increasing the temperature of the refrigerant entering the compressor 10, and then can quickly increase the temperature rise rate of the heat pump component during operation, shorten the drying time, and improve the drying effect of clothes.

[0087] Specifically, when the spray device 600 is turned on, by opening the bypass air duct 500 and blocking the air flow from passing through the air inlet side of the evaporator 20, the wind at the inlet of the evaporator 20 can be eliminated from participating in the refrigerant heat exchange of the evaporator 20. Because if there is no air duct switching, that is, if the bypass air duct 500 is closed, then the refrigerant in the evaporator 20 will absorb the heat of the air flow inside the drying air duct, and the heat absorbed by the refrigerant from the wind at the inlet of the evaporator 20 belongs to the heat inside the drying air duct, which is useless for additional improvement of the drying speed. The effect will be obvious only when heat is absorbed from the outside {that is, the drying speed will be increased only when the heat of the spray water is absorbed}.

[0088] To be more specific, when the compressor 10 and the spray device 600 are turned on, the refrigerant with a lower evaporation temperature in the evaporator 20 absorbs a large amount of heat from the tap water {because the evaporator 20 has a large heat exchange coefficient with water and a strong heat exchange capacity}, the evaporation temperature increases, and the compressor flow increases. This part of the heat enters the compressor 10 from the evaporator 20 along with the refrigerant, and is compressed by the compressor 10 to become a high-temperature and high-pressure gas {because the overall heat is higher, the condensation temperature and the drying temperature are also higher}, and is finally released to the air on the condenser 30 side {because there will be wind to cool the condenser 30 during drying, most of the heat of the refrigerant in the condenser 30 is transferred to the circulating air, and this circulating air is the air that enters the clothing processing drum to dry the clothes in the drum. Because there is more heat, the temperature of the circulating air is higher, that is, the drying temperature becomes higher}.

[0089] For the entire heat pump system, the total input energy is the power input from the compressor 10 and the heat absorbed by the evaporator 20 from the spray water. Compared to non-spray drying, the system input heat exceeds the heat absorbed from the spray water, so the heat pump drying system can quickly increase the drying temperature, thereby improving the drying speed.

[0090] It should be noted that the temperature of tap water is higher than the temperature of the refrigerant in the evaporator 20 , so spraying the evaporator 20 with tap water can enable the refrigerant in the evaporator 20 to exchange heat with the spray water.

[0091] It should also be noted that the evaporation temperature of the heat pump system is approximately equal to the refrigerant temperature inside the evaporator 20.

[0092] Furthermore, in some embodiments, the clothes processing device has a drying program, and the clothes processing device further includes:

[0093] The controller controls the heat pump assembly 300 and the bypass air duct 500 to open when the laundry is processed and the drying program is run, and controls the spraying device 600 to spray the evaporator 20 in the heat pump assembly 300 .

[0094] That is, when the clothes processing device in the embodiment of the present application runs the drying program, the spray device 600 is started to spray the evaporator 20, that is, in the embodiment of the present application, the spray device is started to spray the evaporator 20 when the compressor 10 is started. The reason for this arrangement in the embodiment of the present application is that the earlier the evaporator 20 is sprayed, the more heat it absorbs. Because the input power of the compressor is small, the heat pump drying temperature rises slowly in the initial stage of drying, which restricts the heat pump drying speed. Therefore, starting the spray device 600 to spray the evaporator 20 at the same time as the compressor is started can effectively solve the problem of slow temperature rise of the heat pump component's outlet air during startup.

[0095] Furthermore, in some embodiments, the laundry processing device further comprises:

[0096] A temperature sensing device 700 and a timer, wherein the temperature sensing device 700 is used to obtain the temperature value of the air outlet side of the condenser 30, and the timer is used to calculate the opening time of the spray device 600;

[0097] The controller is used to control whether the bypass air duct 500 is closed and whether the spray device 600 is closed according to the temperature value and the opening time.

[0098] In the embodiment of the present application, by obtaining the temperature of the air outlet side of the condenser 30 and the spraying time of the spray device 600, the temperature in the drying air duct and the operating status of the compressor can be detected in real time, so as to timely adjust the operating status of the spray device 600 and the opening status of the bypass air duct 500.

[0099] Furthermore, in some embodiments, the laundry processing device further comprises:

[0100] The damper 800 is rotatably disposed at the air inlet end of the bypass air duct 500. When the damper 800 rotates, it has a first working position for opening the air inlet end of the bypass air duct 500 and a second working position for closing the air inlet end of the bypass air duct 500.

[0101] When the damper 800 is in the first working position, it is located on the air intake side of the evaporator 20 to block the air flow through the evaporator 20 while opening the bypass air duct 500. When the damper 800 is in the second working position, it avoids the air intake side of the evaporator 20 to allow the air flow through the evaporator 20 while closing the bypass air duct 500.

[0102] That is, in the embodiment of the present application, the direction of the airflow in the air duct is changed by setting the damper 800 at the air inlet end of the bypass air duct 500, and by setting the damper 800 at the air inlet end of the bypass air duct 500, the airflow in the bypass air duct 500 can all flow to the evaporator 20 when it is closed, thereby improving the heat exchange effect between the airflow and the evaporator 20.

[0103] Furthermore, in some embodiments, the spray device 600 is disposed on the top of the evaporator 20 and has a spray valve for spraying water toward the top of the evaporator 20 so as to spray the evaporator 20 from top to bottom.

[0104] In the embodiment of the present application, the spray water is controlled to spray the evaporator 20 from top to bottom, so that the spray water flows through the evaporator fins from top to bottom, and fully exchanges heat with the low-temperature refrigerant in the evaporator, thereby improving the heat exchange effect between the two.

[0105] In some embodiments, as Figure 4As shown, the heat pump assembly 300 includes two boxes 40, each of which has a cavity formed therein and an air inlet and an exhaust port formed on its surface. The two boxes 40 are connected to the drying air duct 200 through the air inlet and the exhaust port.

[0106] The heat pump system is disposed in the cavity, and the evaporator 20 of the heat pump system is disposed close to the air inlet, and the condenser 30 is disposed close to the air outlet.

[0107] Specifically, pipelines are provided at the air inlet and the air outlet of the two device boxes 40 , and are connected to the drying air duct through the pipelines.

[0108] Further, in some embodiments, Figure 4 As shown, the top of the evaporator 20 is spaced apart from the top of the two-device box 40, the side of the evaporator 20 close to the air inlet is spaced apart from the air inlet, and the side of the evaporator 20 close to the condenser 30 is spaced apart from the condenser 30, thereby defining a bypass air duct 500 with the air inlet end located on the air inlet side of the evaporator 20 and the air exhaust end located between the exhaust side of the evaporator 20 and the air inlet side of the condenser 30. The damper 800 is a variable-position door disposed at the air inlet position of the two-device box 40. One end of the damper has a rotating shaft mounted on the two-device box or on the wall of the air duct, and the other end engages with the wall of the air duct. When the damper is rotated to different positions by the rotating shaft, different air supply ducts (i.e., the bypass air duct and the drying air duct) can be formed.

[0109] That is, in the embodiment of the present application, by rationally arranging the components in the heat pump system, there is no need to separately set up a bypass air duct 500, thereby reducing costs.

[0110] Further, in some embodiments, Figure 4 and Figure 5 As shown, a drain pipe 50 is further provided at the bottom of the two device boxes 40 , the water inlet end of the drain pipe 50 is connected to the bottom of the cavity, and the drain end is connected to the clothes processing drum 100 .

[0111] In the embodiment of the present application, a drain pipe 50 is provided at the bottom of the two-device box 40 to facilitate the collection of the spray water. It is worth noting that if the spray water is to be recycled, a filter device can be provided on the drain pipe 50 to filter the spray water before it is discharged into the laundry treatment drum 100 as washing water for washing clothes.

[0112] Further, in some embodiments, Figure 4 As shown, the two-device box 40 includes a two-device box base 401 and a two-device box cover 402. The top of the two-device box base 401 has an opening, and the two-device box cover 402 is covered at the opening position to define the two-device box 40 with a cavity inside.

[0113] The spray device 600 is disposed on the two-device box cover 402 and has a spray valve facing the top of the evaporator 20 . The drain pipe 50 is connected to the bottom of the two-device box base 401 .

[0114] In the embodiment of the present application, the two device boxes 40 are provided as separate structures, which facilitates the installation and disassembly of the heat pump assembly.

[0115] Furthermore, in some embodiments, of course, the heat pump system further includes a throttle valve 60 connected between the evaporator 20 and the condenser 30;

[0116] In the heat pump system, the exhaust port of the compressor 10 is connected to the air inlet of the condenser 30, the exhaust port of the condenser 30 is connected to the air inlet of the evaporator 20 through the throttle valve 60, and the exhaust port of the evaporator 20 is connected to the air inlet of the compressor 10;

[0117] The compressor 10 , the condenser 30 , the throttle valve 60 and the evaporator 20 , which are sequentially connected, form a circulating refrigerant flow path through the refrigerant pipeline.

[0118] Furthermore, in some embodiments, the clothing processing device is a drum dryer or a drum washer-dryer.

[0119] Furthermore, a second aspect of the embodiments of the present application further provides a drying control method for a clothes processing device, characterized in that, when applied to the clothes processing device according to any one of claims 1 to 12, the drying control method comprises:

[0120] Under the drying program, the heat pump assembly, bypass duct, and spray device are turned on, and the temperature value of the air outlet side of the condenser in the heat pump assembly and the spraying time of the spray device are obtained;

[0121] Determine whether to close the bypass air duct and the spray device based on the temperature value and / or the spraying time.

[0122] In the embodiment of the present application, by obtaining the temperature of the air outlet side of the condenser 30 and the spraying time of the spray device 600, the temperature in the drying air duct and the operating status of the compressor can be detected in real time, so as to timely adjust the operating status of the spray device 600 and the opening status of the bypass air duct 500.

[0123] Specifically, in some embodiments, determining whether to close the bypass air duct and the spray device based on the temperature value and / or the spraying duration includes:

[0124] Determine whether the spraying duration is greater than or equal to the preset duration; the preset duration ranges from 5 minutes to 20 minutes;

[0125] If so, close the bypass duct and sprinkler system;

[0126] If not, it is determined whether the temperature value is greater than or equal to a preset temperature value, and based on the determination result, it is determined whether to close the bypass air duct and the spray device.

[0127] In the present embodiment, the bypass duct and spray device are controlled by the spray duration because the original purpose of spraying is to absorb heat from the water to quickly increase the drying temperature, thereby shortening the drying time. However, when the compressor is on for drying and spraying, the evaporator's cooling capacity does not actually dehumidify the air (because the evaporator is bypassed and the evaporator's cooling capacity has no cooling effect on the hot air exiting the drum, thus no dehumidification). This situation will indirectly extend the total drying time. Therefore, considering the two effects of spraying on drying time, the spraying time should not be too long. Otherwise, if the drying time shortened by spraying is less than the drying time increased by spraying, the spraying effect will be outweighed.

[0128] Furthermore, in some embodiments, determining whether the temperature value is greater than or equal to a preset temperature value, and determining whether to close the bypass air duct and the spray device based on the determination result, includes:

[0129] If the temperature value is greater than or equal to the preset temperature value, the bypass duct and the sprinkler device are closed;

[0130] If the temperature value is lower than the preset temperature value, the bypass air duct and the sprinkler device are kept open.

[0131] The opening and closing of the bypass air duct and the spray device are controlled by obtaining the temperature of the condenser outlet side. This is because when the condenser outlet temperature is low, the drying temperature is also low. The system needs more heat to increase the drying temperature and needs to keep the spraying on. When the temperature reaches or exceeds the preset value, the drying temperature is already high enough and there is no need for spraying to absorb heat. After all, long-term spraying is not good for the total drying time {there is no dehumidification during spraying, which in turn increases the drying time. The two need to be weighed}.

[0132] The above-mentioned preset temperature value range is between 30° and 50°.

[0133] Furthermore, in some embodiments, the drying control method further includes:

[0134] In response to a start instruction of a drying program, the heat pump assembly, the bypass air duct and the spray device are controlled to open.

[0135] That is, when the clothes processing device in the embodiment of the present application runs the drying program, the spray device 600 is started to spray the evaporator 20, that is, in the embodiment of the present application, the spray device is started to spray the evaporator 20 when the compressor 10 is started. The reason for this arrangement in the embodiment of the present application is that the earlier the evaporator 20 is sprayed, the more heat it absorbs. Because the input power of the compressor is small, the heat pump drying temperature rises slowly in the initial stage of drying, which restricts the heat pump drying speed. Therefore, starting the spray device 600 to spray the evaporator 20 at the same time as the compressor is started can effectively solve the problem of slow temperature rise of the heat pump component's outlet air during startup.

[0136] In the above embodiments of the present application, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. The steps shown in the relevant flow charts can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flow charts, in some cases, the steps shown or described can be executed in an order different from that shown here. In other words, the order of steps described in the foregoing embodiments is only an example, and reasonable adjustment of the order of steps based on the content of the embodiments of the present application is also within the scope of protection of the embodiments of the present application.

[0137] The sequence of the serial numbers or introduction of the embodiments of this application is for description only and does not represent the superiority or inferiority of the embodiments.

[0138] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0139] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A clothes processing device, characterized in that: include: Clothes treatment drum (100); A drying air duct (200), the drying air duct (200) being in communication with the clothes processing drum (100) to form a circulating air path; a heat pump assembly (300), the heat pump assembly (300) being arranged on the air duct path of the drying air duct (200) and being used to heat the air flow in the drying air duct (200), the heat pump assembly (300) comprising a heat pump system consisting of a compressor (10), an evaporator (20) and a condenser (30); a fan (400), the fan (400) being used to provide flow power for the airflow in the drying air duct (200), and to allow the airflow to enter from one side of the evaporator (20) and to be discharged from one side of the condenser (30); A bypass air duct (500), wherein an air inlet end of the bypass air duct (500) is connected to the air inlet side of the evaporator (20), and an air outlet end of the bypass air duct (500) is connected between the air outlet side of the evaporator (20) and the air inlet side of the condenser (30); the bypass air duct (500) can be controlled to be opened or closed; when the bypass air duct (500) is opened, air flow is blocked from passing through the evaporator (20); and when the bypass air duct (500) is closed, air flow is allowed to pass through the evaporator; a spray device (600), wherein the water inlet end of the spray device (600) is connected to a tap water pipeline and the outlet end is directed toward the evaporator (20), so as to spray the evaporator (20) with tap water having a temperature higher than the temperature of the refrigerant inside the evaporator; The clothes processing device has a drying program, and the clothes processing device further includes: a controller, the controller controlling the heat pump assembly (300) to be turned on and the bypass air duct (500) to be turned on when the clothes processing device runs a drying program, and controlling the spraying device (600) to spray the evaporator (20) in the heat pump assembly (300); The laundry processing device further comprises: A temperature sensing device (700) and a timer, wherein the temperature sensing device (700) is used to obtain a temperature value on the air outlet side of the condenser (30), and the timer is used to calculate the opening time of the spraying device (600); and the controller is used to control whether the bypass air duct (500) is closed and whether the spraying device (600) is closed according to the temperature value and the opening time; If the spraying time is greater than or equal to the preset time, the controller closes the bypass air duct and the spraying device. If the spraying time is less than the preset time, it is determined whether the temperature value is greater than or equal to the preset temperature value, and based on the judgment result, it is determined whether to close the bypass air duct and the spraying device.

2. The clothes processing device according to claim 1, characterized in that The laundry processing device further comprises: an air door (800), the air door (800) being rotatably arranged at the air inlet end of the bypass air duct (500), the air door (800) having a first working position for opening the air inlet end of the bypass air duct (500) and a second working position for closing the air inlet end of the bypass air duct (500) when rotating; When the damper (800) is in a first working position, it is located on the air inlet side of the evaporator (20) so as to block the air flow from passing through the evaporator (20) while opening the bypass air duct (500); and when the damper (800) is in a second working position, it avoids the air inlet side of the evaporator (20) so as to allow the air flow to pass through the evaporator (20) while closing the bypass air duct (500).

3. The clothes processing device according to claim 1, characterized in that: The spray device (600) is arranged on the top of the evaporator (20) and has a spray valve for spraying water toward the top of the evaporator (20), so as to be able to spray the evaporator (20) from top to bottom.

4. The clothes processing device according to claim 1, characterized in that: The heat pump assembly (300) comprises two boxes (40), each of which has a cavity formed therein and an air inlet and an air outlet connected to the cavity formed on its surface, and the two boxes (40) are connected to the drying air duct (200) through the air inlet and the air outlet; The heat pump system is arranged in the cavity, and the evaporator (20) in the heat pump system is arranged close to the air inlet, and the condenser (30) is arranged close to the air outlet.

5. The clothes processing device according to claim 4, characterized in that: The top of the evaporator (20) is spaced apart from the top of the two-device box (40), the side of the evaporator (20) close to the air inlet is spaced apart from the air inlet, and the side of the evaporator (20) close to the condenser (30) is spaced apart from the condenser (30), so as to define the bypass air duct (500) with the air inlet end located on the air inlet side of the evaporator (20) and the air exhaust end located between the exhaust side of the evaporator (20) and the air inlet side of the condenser (30).

6. The clothes processing device according to claim 4, characterized in that: A drainage pipe (50) is also provided at the bottom of the two-device box (40), wherein the water inlet end of the drainage pipe (50) is connected to the bottom of the cavity, and the drainage end is connected to the clothes processing drum (100).

7. The clothes processing device according to claim 6, characterized in that: The two-device box (40) comprises a two-device box base (401) and a two-device box cover (402), wherein the top of the two-device box base (401) has an opening, and the two-device box cover (402) is arranged to cover the opening to define the two-device box (40) having a cavity therein; The spray device (600) is provided on the two-device box cover (402), and the spray device (600) has a spray valve facing the top of the evaporator (20), and the drain pipe (50) is connected to the bottom of the two-device box base (401).

8. The clothes processing device according to claim 1, characterized in that: The heat pump system further includes a throttle valve (60) connected between the evaporator (20) and the condenser (30); In the heat pump system, the exhaust port of the compressor (10) is connected to the air inlet of the condenser (30), the exhaust port of the condenser (30) is connected to the air inlet of the evaporator (20) through the throttle valve (60), and the exhaust port of the evaporator (20) is connected to the air inlet of the compressor (10); The compressor (10), the condenser (30), the throttle valve (60) and the evaporator (20) are connected in sequence and form a circulating refrigerant flow path through a refrigerant pipeline.

9. The clothes processing device according to claim 1, characterized in that: The clothing processing device is a drum-type clothes dryer or a drum-type washer-dryer.

10. A drying control method for a clothes processing device, characterized in that: Applicable to the clothes processing device according to any one of claims 1 to 9, the drying control method comprises: Under the drying program, the heat pump assembly, the bypass air duct and the spray device are turned on, and the temperature value of the air outlet side of the condenser in the heat pump assembly and the spraying time of the spray device are obtained; Whether to close the bypass air duct and the spraying device is determined based on the temperature value and / or the spraying duration.

11. The drying control method according to claim 10, characterized in that: The determining whether to close the bypass air duct and the spraying device based on the temperature value and / or the spraying duration includes: Determine whether the spraying time is greater than or equal to the preset time; If yes, closing the bypass air duct and the spray device; If not, it is determined whether the temperature value is greater than or equal to a preset temperature value, and based on the determination result, it is determined whether to close the bypass air duct and the spray device.

12. The drying control method according to claim 11, characterized in that: The determining whether the temperature value is greater than or equal to a preset temperature value, and determining whether to close the bypass air duct and the spray device based on the determination result, includes: If the temperature value is greater than or equal to the preset temperature value, closing the bypass air duct and the spray device; If the temperature value is lower than the preset temperature value, the bypass air duct and the spray device are maintained in an open state.

13. The drying control method according to claim 11, characterized in that: The drying control method further comprises: In response to a start instruction of a drying program, the heat pump assembly, the bypass air duct and the spray device are controlled to open.

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