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 spraying device to spray an evaporator in the heat pump assembly, 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 rapidly increase the temperature rise rate of the heat pump assembly during operation, shortening the drying time and improving 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 spraying device to spray the evaporator during the drying process, 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 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] clothes treatment drum;

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

[0012] The heat pump assembly is arranged 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 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;

[0015] The clothes processing device also has a drying program. When the drying program is running, the heat pump component is controlled to run, and the spraying device is controlled to open to spray the evaporator in the heat pump component.

[0016] In the above technical solution, the timer is used to obtain the spraying time of the spraying device;

[0017] The controller is used to control whether the sprinkler device is turned off according to the sprinkler duration.

[0018] In the above technical solution, the clothes processing device includes:

[0019] a first temperature sensing device, a second temperature sensing device, and a timer, wherein the first temperature sensing device is used to obtain the temperature value of the spray water of the spray device before and after heat exchange with the evaporator, the second temperature sensing device is used to obtain the temperature value of the air inlet side of the evaporator, and the timer is used to calculate the opening time of the spray device;

[0020] The controller is used to control whether the spray device is closed according to at least one of the temperature value of the spray water before heat exchange, the temperature value after heat exchange, the temperature value of the air inlet side of the evaporator, and the opening time of the spray device.

[0021] In the above technical solution, the heat pump assembly includes two boxes, each of which has a cavity for accommodating a compressor, an evaporator, and a condenser. A drain port is provided at the bottom of the cavity for discharging spray water after heat exchange with the evaporator.

[0022] The first temperature sensing device includes a first temperature sensing device A and a first temperature sensing device B. The first temperature sensing device A is arranged at the spray port position of the spray device, and is used to obtain the temperature value of the spray water before heat exchange with the evaporator. The first temperature sensing device B is arranged at the drain port position, and is used to obtain the temperature value of the spray water after heat exchange with the evaporator.

[0023] In the above technical solution, the surfaces of the two boxes are further formed with an air inlet and an exhaust port connected to the cavity, and the two boxes are connected to the drying air duct through the air inlet and the exhaust port;

[0024] 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.

[0025] In the above technical solution, the drainage outlets at the bottom of the two boxes are also connected to drainage pipes, and the drainage ends of the drainage pipes are connected to the clothes processing tub.

[0026] 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.

[0027] 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.

[0028] In the above technical solution, the spraying device is arranged on the top of the evaporator and has a spraying valve for spraying water downward, so as to be able to spray the evaporator from top to bottom.

[0029] In the above technical solution, the fan is arranged on the air inlet side of the evaporator.

[0030] In the above technical solution, the heat pump system further includes a throttle valve connected between the evaporator and the condenser;

[0031] 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;

[0032] The compressor, condenser, throttle valve and evaporator connected in sequence form a circulating refrigerant flow path through the refrigerant pipeline.

[0033] In the above technical solution, the clothing processing device is a drum dryer or a drum washer-dryer.

[0034] 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:

[0035] In response to a start instruction of a drying program, the heat pump assembly, the spray device and the fan are controlled to turn on;

[0036] Obtain the duration of the sprinkler opening, and determine whether the sprinkler opening duration is greater than or equal to the preset duration;

[0037] If so, turn off the sprinkler;

[0038] If not, whether the spray device is closed is controlled according to at least one of the temperature value of the air inlet side of the evaporator, the temperature value of the spray water before heat exchange, and the temperature value of the spray water after heat exchange.

[0039] In the above technical solution, whether the spray device is closed is controlled according to at least one of the temperature value of the air inlet side of the evaporator, the temperature value of the spray water before heat exchange, and the temperature value of the spray water after heat exchange, including:

[0040] If the temperature value of the air inlet side of the evaporator is greater than or equal to the first preset temperature value, the spray device is controlled to be closed;

[0041] If the temperature value at the air inlet side of the evaporator is lower than the first preset temperature value, the spray device is controlled to be closed according to the temperature value of the spray water before heat exchange and the temperature value of the spray water after heat exchange.

[0042] In the above technical solution, whether the spray device is closed is controlled according to the temperature value of the air inlet side of the evaporator and / or the temperature value of the spray water before heat exchange and / or the temperature value of the spray water after heat exchange, including:

[0043] If the temperature value of the air inlet side of the evaporator is greater than or equal to the first preset temperature value, the spray device is controlled to be closed;

[0044] If the temperature value at the air inlet side of the evaporator is lower than the first preset temperature value, the spray device is controlled to be closed according to the temperature value of the spray water before heat exchange and the temperature value of the spray water after heat exchange.

[0045] In the above technical solution, controlling whether the spray device is closed according to the temperature value of the spray water before heat exchange and the temperature value of the spray water after heat exchange includes:

[0046] If the temperature change of the spray water before and after the heat exchange is less than or equal to the second preset temperature value, the spray device is turned off;

[0047] If the temperature change of the spray water before and after the heat exchange is greater than the second preset temperature value, the spray device is maintained in the open state.

[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, 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 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 structural diagram of a clothes processing device according to an embodiment of the present application, showing the flow path of air in the air duct;

[0051] Figure 2 This is a schematic diagram of the explosion structure of the heat pump assembly in the embodiment of the present application;

[0052] Figure 3 This is a schematic diagram of the structure of the evaporator when it is sprayed in an embodiment of the present application;

[0053] Figure 4 This is a schematic diagram of the temperature control of the spray device in the embodiment of the present application.

[0054] in:

[0055] 100-Clothes treatment drum;

[0056] 200-drying air duct;

[0057] 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;

[0058] 400-fan;

[0059] 500-first temperature sensing device; 501-first temperature sensing device A; 502-first temperature sensing device B;

[0060] 600-Spraying device;

[0061] 700-Second temperature sensing device. DETAILED DESCRIPTION

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] Background

[0070] 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.

[0071] 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:

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 4. Electric auxiliary heating has low energy efficiency and poor energy saving effect

[0076] Based on this, Figures 1-4 As shown, a first aspect of an embodiment of the present application provides a clothes processing device, characterized in that it includes:

[0077] Clothes treatment drum 100;

[0078] The drying air duct 200 communicates with the clothes processing drum 100 to form a circulating air path;

[0079] 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. The heat pump assembly 300 includes a heat pump system consisting of a compressor 10, an evaporator 20 and a condenser 30;

[0080] The fan 400 is used to provide flow power for the airflow in the drying air duct 200, and to make the airflow enter from the evaporator 20 side and be discharged from the condenser 30 side;

[0081] 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 20;

[0082] The clothes processing device further has a drying program. When the drying program is running, the heat pump assembly 300 is controlled to run, and the spraying device 600 is controlled to open to spray the evaporator 20 in the heat pump assembly 300.

[0083] In the embodiment of the present application, by controlling the spray device 600 to spray the evaporator 20 under the drying program, the refrigerant inside 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 increase the temperature rise rate of the heat pump component 300 during operation, shorten the drying time, and improve the drying effect of clothes.

[0084] Specifically, 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 flow rate of the compressor 10 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}.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] Furthermore, in some embodiments, the laundry processing device further comprises:

[0089] A timer, which is used to obtain the spraying duration of the spraying device 600;

[0090] The controller is used to control whether the spraying device 600 is turned off according to the spraying duration.

[0091] Furthermore, in some embodiments, the laundry processing device further comprises:

[0092] A first temperature sensing device 500, a second temperature sensing device 700, and a timer. The first temperature sensing device is used to obtain the temperature of the spray water of the spray device 600 before and after heat exchange with the evaporator 20. The second temperature sensing device 700 is used to obtain the temperature of the air inlet side of the evaporator 20. The timer is used to calculate the opening time of the spray device 600.

[0093] The controller is used to control whether the spray device 600 is turned off according to at least one of the temperature value of the spray water before heat exchange, the temperature value after heat exchange, the temperature value of the air inlet side of the evaporator 20, and the opening time of the spray device 600.

[0094] In the embodiment of the present application, by obtaining the temperature value of the air inlet side of the evaporator 20, the spraying time of the spray device 600, and the temperature value of the spray water before and after spraying, the temperature in the drying air duct and the operating status of the compressor can be detected in real time, so that the operating status of the spray device 600 can be adjusted in time, thereby improving the drying effect while avoiding the waste of water resources caused by long-term operation of the spray device 600.

[0095] Further, in some embodiments, Figure 3 As shown, the heat pump assembly 300 includes two boxes 40, and a cavity is formed inside the two boxes 40 for accommodating the compressor 10, the evaporator 20 and the condenser 30. The bottom of the cavity is provided with a drain port for discharging the spray water after heat exchange with the evaporator 20;

[0096] The first temperature sensing device 500 includes a first temperature sensing device A501 and a first temperature sensing device B502. The first temperature sensing device A501 is arranged at the spray port position of the spray device 600, and is used to obtain the temperature value of the spray water before heat exchange with the evaporator 20. The first temperature sensing device B502 is arranged at the drain port position, and is used to obtain the temperature value of the spray water after heat exchange with the evaporator 20.

[0097] In the embodiment of the present application, a drainage port is provided at the bottom of the two boxes 40 to facilitate the collection of the spray water.

[0098] Furthermore, a drain pipe 50 is connected to the drain outlet at the bottom of the two device boxes 40 , and the drain end of the drain pipe 50 is connected to the clothes processing drum 100 .

[0099] It is worth noting that if you want to recycle the spray water, you can set a filtering device on the drain pipe 50 to filter the spray water before draining it into the clothes processing drum 100 and use it as washing water to wash clothes.

[0100] Furthermore, in some embodiments, the surfaces of the two container boxes 40 are further formed with an air inlet and an exhaust port communicating with the cavity, and the two container boxes are connected to the drying air duct 200 through the air inlet and the exhaust port;

[0101] 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.

[0102] Further, in some embodiments, Figure 2 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.

[0103] 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 .

[0104] 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.

[0105] 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 downward, so as to be able to spray the evaporator 20 from top to bottom.

[0106] 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.

[0107] Furthermore, in some embodiments, the fan 400 is disposed on the air inlet side of the evaporator 20 .

[0108] In the embodiment of the present application, by arranging the fan 400 on the air inlet side of the evaporator, the problem of damage to the fan due to excessively high temperature of the drying air flow can be avoided.

[0109] Of course, in some alternative embodiments, the fan 400 may also be disposed on the air outlet side of the condenser 30 .

[0110] Furthermore, in some embodiments, the heat pump system further includes a throttle valve 60 connected between the evaporator 20 and the condenser 30;

[0111] 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;

[0112] 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.

[0113] Furthermore, in some embodiments, the clothing processing device is a drum dryer or a drum washer-dryer.

[0114] Furthermore, the second aspect of the embodiment of the present application further 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 embodiment of the present application. The drying control method includes:

[0115] In response to a start instruction of a drying program, the heat pump assembly, the spray device and the fan are controlled to turn on;

[0116] Obtain the duration of the sprinkler opening, and determine whether the sprinkler opening duration is greater than or equal to the preset duration;

[0117] If so, turn off the sprinkler;

[0118] If not, whether the spray device is closed is controlled according to at least one of the temperature value of the air inlet side of the evaporator, the temperature value of the spray water before heat exchange, and the temperature value of the spray water after heat exchange.

[0119] Furthermore, in some embodiments, controlling whether to turn off the spray device according to at least one of the temperature value of the air inlet side of the evaporator, the temperature value of the spray water before heat exchange, and the temperature value of the spray water after heat exchange includes:

[0120] If the temperature value of the air inlet side of the evaporator is greater than or equal to the first preset temperature value, the spray device is controlled to be closed;

[0121] If the temperature value at the air inlet side of the evaporator is lower than the first preset temperature value, the spray device is controlled to be closed according to the temperature value of the spray water before heat exchange and the temperature value of the spray water after heat exchange.

[0122] That is, if the evaporator's inlet air temperature rises to a certain level, indicating that the system drying temperature has also risen to a higher level, the spraying can be stopped. Furthermore, if the evaporator's inlet air temperature is even higher than the tap water temperature, the tap water will in turn absorb the heat from the evaporator's inlet air, and the system heat will be partially carried away by the tap water, thereby weakening the heating effect. Therefore, when the temperature on the evaporator's inlet side is greater than or equal to the first preset temperature value, the spraying device needs to be turned off.

[0123] Furthermore, in some embodiments, controlling whether the spray device is turned off according to the temperature value of the spray water before the heat exchange and the temperature value of the spray water after the heat exchange includes:

[0124] If the temperature change of the spray water before and after the heat exchange is less than or equal to the second preset temperature value, the spray device is turned off;

[0125] If the temperature change of the spray water before and after the heat exchange is greater than the second preset temperature value, the spray device is maintained in the open state.

[0126] That is, when the temperature value on the air inlet side of the evaporator is lower than the preset threshold, the heat absorption capacity of the evaporator can be reflected according to the temperature change value of the spray water before and after spraying. The larger the water temperature change before and after spraying, the more heat the evaporator absorbs and the better the effect. As the temperature difference before and after spraying decreases, it means that the heat absorption effect of the evaporator is not good. At this time, spraying needs to be stopped to avoid waste of water resources.

[0127] The preset duration of the spray device ranges from 5 minutes to 20 minutes, the first preset temperature ranges from 20° to 40°, and the second preset temperature ranges from 1° to 10°.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] 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, 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 spray device (600), wherein the water inlet end of the spray device (600) is used to connect 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 (20); The clothes processing device further has a drying program. When the drying program is running, the heat pump assembly (300) is controlled to operate, and the spraying device (600) is controlled to start spraying the evaporator (20) in the heat pump assembly (300); The laundry processing device further comprises: A timer, the timer being used to obtain the spraying duration of the spraying device (600); A controller, the controller being used to control whether the spraying device (600) is turned off according to the spraying duration; a first temperature sensing device (500) and a second temperature sensing device (700), wherein the first temperature sensing device is used to obtain the temperature value of the spray water of the spray device (600) before and after heat exchange with the evaporator (20), and the second temperature sensing device (700) is used to obtain the temperature value of the air inlet side of the evaporator (20), and the timer is used to calculate the opening time of the spray device (600); The controller is used to control whether the spraying device (600) is turned off according to at least one of the temperature value of the spraying water before heat exchange, the temperature value after heat exchange, the temperature value of the air inlet side of the evaporator (20), and the opening time of the spraying device (600), wherein the spraying device is started to spray the evaporator at the same time as the compressor is started.

2. The clothes processing device according to claim 1, characterized in that The heat pump assembly comprises a two-device box (40), wherein a cavity for accommodating the compressor (10), the evaporator (20) and the condenser (30) is formed inside the two-device box (40), and a drain port is provided at the bottom of the cavity, and the drain port is used to discharge spray water after heat exchange with the evaporator (20); The first temperature sensing device (500) includes a first temperature sensing device A (501) and a first temperature sensing device B (502), wherein the first temperature sensing device A (501) is arranged at the spray port of the spray device (600) and is used to obtain the temperature value of the spray water before heat exchange with the evaporator (20), and the first temperature sensing device B (502) is arranged at the drain port and is used to obtain the temperature value of the spray water after heat exchange with the evaporator (20).

3. The clothes processing device according to claim 2, characterized in that: An air inlet and an air outlet communicating with the cavity are also formed on the surfaces of the two-device box (40), and the two-device box is communicated with 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.

4. The clothes processing device according to claim 2, characterized in that: A drainage pipe (50) is also connected to the drainage outlet at the bottom of the two-device box (40), and the drainage end of the drainage pipe (50) is connected to the clothes processing drum (100).

5. The clothes processing device according to claim 4, 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).

6. The clothes processing device according to any one of claims 1 to 5, characterized in that: The spray device (600) is arranged on the top of the evaporator (20) and has a spray valve for spraying water downward, so as to be able to spray the evaporator (20) from top to bottom.

7. The clothes processing device according to any one of claims 1 to 5, characterized in that: The fan (400) is arranged on the air outlet side of the condenser (30).

8. The clothes treating device according to any one of claims 1 to 5, 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: In response to a start instruction of a drying program, controlling the heat pump assembly, the spray device and the fan to turn on; Obtain the duration of the sprinkler opening, and determine whether the sprinkler opening duration is greater than or equal to the preset duration; If so, shut down the spray device; If not, the spray device is controlled to be closed according to at least one of the temperature value of the air inlet side of the evaporator, the temperature value of the spray water before heat exchange, and the temperature value of the spray water after heat exchange.

11. The drying control method according to claim 10, characterized in that: The controlling of whether the spray device is closed according to at least one of the temperature value of the air inlet side of the evaporator, the temperature value of the spray water before heat exchange, and the temperature value of the spray water after heat exchange includes: If the temperature value of the air inlet side of the evaporator is greater than or equal to the first preset temperature value, the spray device is controlled to be closed; If the temperature value at the air inlet side of the evaporator is lower than the first preset temperature value, the spray device is controlled to be closed according to the temperature value of the spray water before heat exchange and the temperature value of the spray water after heat exchange.

12. The drying control method according to claim 11, characterized in that: The controlling of whether the spray device is closed according to the temperature value of the spray water before the heat exchange and the temperature value of the spray water after the heat exchange includes: If the temperature change of the spray water before and after the heat exchange is less than or equal to the second preset temperature value, turning off the spray device; If the temperature change of the spray water before and after the heat exchange is greater than the second preset temperature value, the spray device is maintained in the open state.

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