Clothes processing equipment

Abstract

The utility model provides clothes treatment equipment, and belongs to the field of clothes treatment equipment. The clothes processing equipment comprises a heat pump assembly used for heating air flow in a drying air duct, a spraying device is controlled to spray an evaporator in the heat pump assembly, heat exchange can be fully conducted between a refrigerant in the evaporator and spraying water, heat in the spraying water is absorbed, and the heat in the drying air duct is heated. Therefore, the temperature of the refrigerant entering the compressor is increased, the temperature rise speed of the heat pump assembly during operation can be rapidly increased, the drying time is shortened, and the clothes drying effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of clothing treatment equipment, and more particularly, to a clothing treatment equipment. Background Art

[0002] For a closed-loop 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 relatively large, and the input power of the compressor is small at the initial stage of drying, the temperature of the heat pump drying rises slowly at the initial stage of drying, which restricts the drying speed of the heat pump.

[0003] In order to quickly increase the drying temperature, a conventional method is to add electric auxiliary heating in the drum inlet air duct of the clothing treatment equipment and turn on the electric auxiliary heating synchronously when drying starts. However, this method has the following problems:

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

[0005] 2. Arranging the electric auxiliary heating in the air duct affects the air volume of the drying system, and thus affects the drying speed, especially obvious during multi-load drying.

[0006] 3. The electric auxiliary heating device needs to be equipped with auxiliary devices such as a temperature sensing bulb, a thermostat, and a fuse, resulting in a relatively high cost.

[0007] 4. The heating energy efficiency of the electric auxiliary heating is low, and the energy-saving effect is poor. Utility Model Content

[0008] To overcome the problems of many drawbacks when the existing clothing treatment equipment uses electric auxiliary heating to increase the drying temperature, an embodiment of this application provides a clothing treatment equipment and a drying control method for the clothing treatment equipment. By controlling a spraying device to spray the evaporator during the drying program, the refrigerant in the evaporator can fully exchange heat with the sprayed water, absorb the heat in the sprayed water, thereby increasing the temperature of the refrigerant entering the compressor, and then being able to improve the temperature rise speed during the operation of the heat pump assembly, shorten the drying time, and improve the drying effect of the clothing. Specifically:

[0009] The first aspect of the embodiment of this application provides a clothing treatment equipment, including:

[0010] A clothing treatment drum;

[0011] A drying air duct, which is communicated with the clothing treatment drum to form a circulating air path;

[0012] A heat pump assembly, which is arranged on the air 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 composed of a compressor, an evaporator, and a condenser;

[0013] A blower, which is used to provide the flow power of the air flow in the drying air duct and make the air flow enter from one side of the evaporator and discharge from one side of the condenser;

[0014] A spraying device, the water inlet end of which is used to connect to the tap water pipeline, and the drainage end faces the evaporator to spray the evaporator with tap water whose temperature is higher than the refrigerant temperature inside the evaporator;

[0015] The clothes treatment equipment also has a drying program. When the drying program runs, the heat pump assembly is controlled to operate, and the spraying device is controlled to be turned on to spray the evaporator in the heat pump assembly.

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

[0017] A controller, which is used to control whether to turn off the spraying device according to the spraying duration.

[0018] In the above technical solution, the clothes treatment equipment includes:

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

[0020] A controller, which is used to control whether to turn off the spraying device 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, and the opening duration of the spraying device.

[0021] In the above technical solution, the heat pump assembly includes a two-device box. A cavity for accommodating a compressor, an evaporator and a condenser is formed inside the two-device box. A drain port is provided at the bottom of the cavity, and the drain port is used to drain the spraying water after heat exchange with the evaporator;

[0022] Among them, 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 spraying port position of the spraying device and is used to obtain the temperature value of the spraying 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 spraying water after heat exchange with the evaporator.

[0023] In the above technical solution, an air inlet and an air outlet communicating with the cavity are also formed on the surface of the two-device box. The two-device box is connected to the drying air duct through the air inlet and the air outlet;

[0024] Among them, 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 air outlet.

[0025] In the above technical solution, a drain pipe is further connected to the position of the drain opening at the bottom of the two-chamber box, and the drain end of the drain pipe communicates with the laundry treatment cylinder.

[0026] In the above technical solution, the two-chamber box includes a two-chamber box base and a two-chamber box cover. The top of the two-chamber box base has an opening, and the two-chamber box cover covers the opening position to define a two-chamber box with an internal cavity.

[0027] Wherein the spraying device is arranged on the two-chamber box cover, and the spraying device has a spraying valve facing the top of the evaporator, and the drain pipe is connected to the bottom of the two-chamber box base.

[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 communicates with the intake port of the condenser, the exhaust port of the condenser communicates with the intake port of the evaporator through the throttle valve, and the exhaust port of the evaporator communicates with the intake port of the compressor;

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

[0033] In the above technical solution, the laundry treatment device is a drum dryer or a drum washing and drying integrated machine.

[0034] A second aspect of the embodiments of the present application provides a drying control method for a laundry treatment device, which is applied to the laundry treatment device provided in the first aspect of the embodiments of the present application. The drying control method includes:

[0035] In response to the start instruction of the drying program, control the heat pump assembly, the spraying device and the fan to be turned on;

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

[0037] If so, turn off the spraying device;

[0038] If not, control whether to turn off the spraying device according to at least one of the temperature value on the air inlet side of the evaporator, the temperature value of the spraying water before heat exchange, and the temperature value of the spraying water after heat exchange.

[0039] In the above technical solution, controlling whether to turn off the spraying device according to at least one of the temperature value on the air inlet side of the evaporator, the temperature value of the spraying water before heat exchange, and the temperature value of the spraying water after heat exchange includes:

[0040] If the temperature value on the air inlet side of the evaporator is greater than or equal to the first preset temperature value, then control the spraying device to turn off;

[0041] If the temperature value on the air inlet side of the evaporator is less than the first preset temperature value, then control whether to turn off the spraying device according to the temperature value of the spraying water before heat exchange and the temperature value of the spraying water after heat exchange.

[0042] In the above technical solution, controlling whether to turn off the spraying device according to the temperature value on the air inlet side of the evaporator and / or the temperature value of the spraying water before heat exchange and / or the temperature value of the spraying water after heat exchange includes:

[0043] If the temperature value on the air inlet side of the evaporator is greater than or equal to the first preset temperature value, then control the spraying device to turn off;

[0044] If the temperature value on the air inlet side of the evaporator is less than the first preset temperature value, then control whether to turn off the spraying device according to the temperature value of the spraying water before heat exchange and the temperature value of the spraying water after heat exchange.

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

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

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

[0048] Adopting the above technical solution, the specific beneficial effects of the present application compared with the prior art are as follows:

[0049] In the embodiment of the present application, by controlling the spraying device to spray the evaporator during the drying program, the refrigerant in the evaporator can fully exchange heat with the spraying water, absorb the heat in the spraying water, thereby increasing the temperature of the refrigerant entering the compressor, and then being able to improve the temperature rise speed of the heat pump component during operation, shorten the drying time, and improve the drying effect of the clothes. Description of the Drawings

[0050] Figure 1 It is a schematic structural diagram of the clothes processing device in the embodiment of the present application, and the figure shows the flow path of the air flow in the air duct;

[0051] Figure 2Explosion structure schematic diagram of the heat pump assembly in the embodiment of the present application;

[0052] Figure 3 Structure schematic diagram of the evaporator when being sprayed in the embodiment of the present application;

[0053] Figure 4 Temperature control schematic diagram of the spraying device in the embodiment of the present application.

[0054] Wherein:

[0055] 100 - Laundry treatment drum;

[0056] 200 - Drying air duct;

[0057] 300 - Heat pump assembly; 10 - Compressor; 20 - Evaporator; 30 - Condenser; 40 - Two - device box; 401 - Two - device box base; 402 - Two - device 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 implementation manners

[0062] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0063] Throughout the specification and claims, the following terms have at least the meanings explicitly associated herein, unless the context otherwise requires. The meanings determined below do not necessarily limit the terms, but merely provide illustrative examples of the terms.

[0064] In the description of the present utility model, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may. Similarly, the phrase "in some embodiments", 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 additional factors not described, unless the context clearly dictates otherwise. The word "exemplary" means "serving as an example, instance, or illustration" herein. Any embodiment described as "exemplary" herein is not necessarily to be construed as superior to or better than other embodiments. The scope of the present utility model is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed utility model. The various embodiments provided by the present utility model should not be construed as limiting the scope of protection of the present utility model.

[0065] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0066] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0067] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0068] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0069] Background Introduction

[0070] For a closed-loop 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 relatively large, and the input power of the compressor is relatively small at the initial stage of drying, the heat pump drying temperature rises slowly at the initial stage of drying, which restricts the heat pump drying speed.

[0071] In order to quickly increase the drying temperature, the conventional method is to add electric auxiliary heating in the drum inlet air duct of the laundry treatment equipment and turn on the electric auxiliary heating synchronously when drying starts. However, this method has the following problems:

[0072] 1. The local temperature of the electric auxiliary heating is high. Most of the air duct components are made of plastic, which poses certain potential safety hazards.

[0073] 2. Arranging the electric auxiliary heating in the air duct affects the air volume of the drying system, and thus affects the drying speed, especially obvious during multi-load drying.

[0074] 3. The electric auxiliary heating device needs to be equipped with auxiliary equipment such as a temperature sensing bulb, a thermostat, and a fuse, resulting in a relatively high cost.

[0075] 4. The electric auxiliary heating has low heating energy efficiency and poor energy-saving effect

[0076] Based on this, as Figures 1 - 4 shown, in the first aspect of the embodiment of the present application, a laundry treatment equipment is provided, which is characterized by including:

[0077] A laundry treatment drum 100;

[0078] A drying air duct 200, the drying air duct 200 communicates with the laundry treatment drum 100 to form a circulating air path;

[0079] A heat pump assembly 300, the heat pump assembly 300 is arranged on the air 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 composed of a compressor 10, an evaporator 20, and a condenser 30;

[0080] A blower 400 is used to provide the flow power of the air flow in the drying air duct 200, and make the air flow enter from one side of the evaporator 20 and discharge from one side of the condenser 30;

[0081] A spraying device 600, the water inlet end of the spraying device 600 is used to connect to the tap water pipeline, and the drainage end faces the evaporator 20, so as to spray the evaporator 20 with tap water whose temperature is higher than the temperature of the refrigerant inside the evaporator 20;

[0082] The clothing treatment device also has a drying program. When the drying program runs, the heat pump assembly 300 is controlled to operate, and the spraying device 600 is controlled to be turned on to spray the evaporator 20 in the heat pump assembly 300.

[0083] In the embodiment of the present application, by controlling the spraying device 600 to spray the evaporator 20 under the drying program, the refrigerant inside the evaporator 20 can fully exchange heat with the sprayed water, absorb the heat in the sprayed water, thereby increasing the temperature of the refrigerant entering the compressor 10, and then being able to improve the temperature rise speed of the heat pump assembly 300 during operation, shorten the drying time, and improve the drying effect of the clothes.

[0084] Specifically, when the compressor 10 and the spraying 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 heat transfer coefficient between the evaporator 20 and water is large and the heat transfer capacity is strong}, the evaporation temperature increases, the flow rate of the compressor 10 increases, and this part of the heat enters the compressor 10 along with the refrigerant from the evaporator 20, and becomes high-temperature and high-pressure gas after being compressed by the compressor 10 {because the total amount of heat is more, so the condensation temperature and the drying temperature are also high}, and finally releases heat 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 treatment cylinder to dry the clothes in the cylinder. Because there is more heat, the temperature of the circulating air is high, that is, the drying temperature becomes high}.

[0085] That is, when the clothing treatment device in the embodiment of the present application runs the drying program, the spraying device 600 is started to spray the evaporator 20. That is, in the embodiment of the present application, the spraying device is started to spray the evaporator 20 when the compressor 10 is started. The reason for such a setting 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, in the initial stage of drying, the heat pump drying temperature rises slowly, which restricts the heat pump drying speed. Therefore, when the compressor is started, the spraying device 600 is started to spray the evaporator 20, which can effectively solve the problem that the heat pump assembly warms up slowly at startup.

[0086] For the entire heat pump system, the total input energy of the system is the input power of the compressor 10 and the heat of the sprayed water absorbed by the evaporator 20. Compared with drying without spraying, the heat input to the system is increased by the heat of the absorbed sprayed water. Therefore, the drying temperature of the heat pump drying system can be rapidly increased, thereby improving the drying speed.

[0087] It should be noted that the temperature of the tap water is higher than the temperature of the refrigerant in the evaporator 20. Therefore, spraying the evaporator 20 with tap water can enable the refrigerant in the evaporator 20 to exchange heat with the sprayed water.

[0088] Further, in some embodiments, the laundry treatment device further includes:

[0089] A timer for obtaining the spraying duration of the spraying device 600;

[0090] A controller for controlling whether to turn off the spraying device 600 according to the spraying duration.

[0091] Further, in some embodiments, the laundry treatment device further includes:

[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 value of the sprayed water of the spraying device 600 before and after heat exchange with the evaporator 20, 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 duration of the spraying device 600;

[0093] A controller for controlling whether to turn off the spraying device 600 according to at least one of the temperature value of the sprayed 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 duration of the spraying device 600.

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

[0095] Further, in some embodiments, as Figure 3 shown, the heat pump assembly 300 includes a two-device box 40. An accommodating cavity for accommodating the compressor 10, the evaporator 20, and the condenser 30 is formed inside the two-device box 40. A drain port is provided at the bottom of the accommodating cavity for draining the sprayed water after heat exchange with the evaporator 20;

[0096] Among them, the first temperature sensing device 500 includes a first temperature sensing device A 501 and a first temperature sensing device B 502. The first temperature sensing device A 501 is arranged at the spraying opening position of the spraying device 600 and is used to obtain the temperature value of the spraying water before heat exchange with the evaporator 20. The first temperature sensing device B 502 is arranged at the drainage port position and is used to obtain the temperature value of the spraying water after heat exchange with the evaporator 20.

[0097] In the embodiment of the present application, a drainage port is arranged at the bottom of the two-device box 40 to facilitate the collection of the spraying water.

[0098] Furthermore, a drain pipe 50 is connected to the drainage port position at the bottom of the two-device box 40, and the drainage end of the drain pipe 50 communicates with the laundry treatment cylinder 100.

[0099] It should be noted that if the spraying water is desired to be recycled, a filtering device can be arranged on the drain pipe 50 so that the spraying water can be filtered and then discharged into the laundry treatment cylinder 100 as washing water for washing clothes.

[0100] Furthermore, in some embodiments, an air inlet and an air outlet communicating with the cavity are also formed on the surface 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;

[0101] Among them, 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.

[0102] Furthermore, in some embodiments, as Figure 2 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 covers the opening position to define the two-device box 40 with an internal cavity;

[0103] Among them, the spraying device 600 is arranged on the two-device box cover 402, and the spraying device 600 has a spraying 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.

[0104] In the embodiment of the present application, by setting the two-device box 40 into a split structure, it is convenient for the installation and disassembly of the heat pump components.

[0105] Furthermore, in some embodiments, the spraying device 600 is arranged on the top of the evaporator 20 and has a spraying 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 on the evaporator 20 from top to bottom. In this way, the spray water flows through the fins of the evaporator 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] Further, in some embodiments, the fan 400 is arranged 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 fan damage caused by too high temperature of the drying air flow can be avoided.

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

[0110] Further, 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 communicated with the intake port of the condenser 30, the exhaust port of the condenser 30 is communicated with the intake port of the evaporator 20 through the throttle valve 60, and the exhaust port of the evaporator 20 is communicated with the intake port of the compressor 10;

[0112] The compressor 10, the condenser 30, the throttle valve 60 and the evaporator 20 which are connected in sequence form a circulating refrigerant flow path through the refrigerant pipeline.

[0113] Further, in some embodiments, the laundry treatment device is a drum dryer or a drum washing and drying integrated machine.

[0114] Further, in the second aspect of the embodiment of the present application, a drying control method for a laundry treatment device is further provided. The method is applied to the laundry treatment device provided in the first aspect of the embodiment of the present application. The drying control method includes:

[0115] In response to the start instruction of the drying program, control the heat pump assembly, the spraying device and the fan to start;

[0116] Obtain the opening duration of the spraying device, and judge whether the spraying duration of the spraying device is greater than or equal to the preset duration;

[0117] If so, turn off the spraying device;

[0118] If not, control whether to turn off the spraying device according to at least one of the temperature value on 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] Further, in some embodiments, controlling whether the spraying device is turned off according to at least one of the temperature value on the air inlet side of the evaporator, the temperature value of the sprayed water before heat exchange, and the temperature value of the sprayed water after heat exchange includes:

[0120] If the temperature value on the air inlet side of the evaporator is greater than or equal to the first preset temperature value, then control the spraying device to be turned off;

[0121] If the temperature value on the air inlet side of the evaporator is less than the first preset temperature value, then control whether the spraying device is turned off according to the temperature value of the sprayed water before heat exchange and the temperature value of the sprayed water after heat exchange.

[0122] That is, if the inlet air temperature of the evaporator is high to a certain extent, it means that the drying temperature of the system has also risen to a relatively high level, and at this time the spraying can be stopped. And when the inlet air temperature of the evaporator is even higher than the tap water temperature, the tap water will in turn absorb the heat of the inlet air of the evaporator, and part of the system heat will be taken away by the tap water, thus weakening the heating effect. Therefore, when the temperature on the air inlet side of the evaporator is greater than or equal to the first preset temperature value, it is necessary to turn off the spraying device.

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

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

[0125] If the temperature change value of the sprayed water before and after heat exchange is greater than the second preset temperature value, then maintain the spraying device in the on state.

[0126] That is, when the temperature value on the air inlet side of the evaporator is less than the preset threshold, the temperature change value of the sprayed water before and after spraying can be used to reflect the strength of the heat absorption capacity of the evaporator. A large temperature change before and after spraying indicates that the evaporator absorbs a lot of heat and has a good effect. As the temperature difference before and after spraying shrinks, it means that the heat absorption effect of the evaporator is not good, and at this time, spraying needs to be stopped to avoid waste of water resources.

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

[0128] In the above embodiments of the present application, the descriptions of the respective embodiments each have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. The steps shown in the relevant flowcharts can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here. In other words, the order of the steps described in the foregoing embodiments is only an example, and reasonable adjustment of the order of the 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 serial numbers of the embodiments of the present application or the order of introduction are only for description and do not represent the superiority or inferiority of the embodiments.

[0130] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. 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 a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0131] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A clothes processing device, characterized in that: include: A 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 for heating 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 water 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); The clothing processing device also has a drying program. When the drying program is running, the heat pump component (300) is controlled to run, and the spraying device (600) is controlled to start spraying the evaporator (20) in the heat pump component (300).

2. The clothes processing device according to claim 1, characterized in that: The laundry processing device further comprises: A timer, the timer being used to obtain the spraying duration of the spraying device (600); A controller is used to control whether the spraying device (600) is turned off according to the spraying duration.

3. The clothes processing device according to claim 2, characterized in that: The laundry processing device comprises: A first temperature sensing device (500), a second temperature sensing device (700) and a timer, wherein the first temperature sensing device is used to obtain a temperature value 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 a 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); A controller, the controller being used to control whether the spray device (600) is closed according to at least one of a temperature value of the spray water before heat exchange, a temperature value after heat exchange, a temperature value of the air inlet side of the evaporator (20), and an opening time of the spray device (600).

4. The clothes processing device according to claim 3, characterized in that: The heat pump assembly comprises two device boxes (40), wherein a cavity for accommodating the compressor (10), the evaporator (20) and the condenser (30) is formed inside the two device boxes (40), and a drain port is provided at the bottom of the cavity, and the drain port is used to discharge the spray water after heat exchange with the evaporator (20); The first temperature sensing device (500) comprises a first temperature sensing device A (501) and a first temperature sensing device B (502); the first temperature sensing device A (501) is arranged at a spray port of the spray device (600) for obtaining a temperature value of the spray water before heat exchange with the evaporator (20); and the first temperature sensing device B (502) is arranged at a drain port for obtaining a temperature value of the spray water after heat exchange with the evaporator (20).

5. The clothes processing device according to claim 4, characterized in that: The surfaces of the two container boxes (40) are also formed with an air inlet and an air outlet connected to the cavity, and the two container boxes 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.

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

7. The clothes processing device according to claim 6, characterized in that: The two-container box (40) comprises a two-container box base (401) and a two-container box cover (402); the top of the two-container box base (401) has an opening, and the two-container box cover (402) is arranged at the opening position to define the two-container box (40) having a cavity inside; The spray device (600) is arranged 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 any one of claims 1 to 7, characterized in that: The spray device (600) is arranged on the top of the evaporator (20) and has a spray valve for spraying water downwards, so as to be able to spray the evaporator (20) from top to bottom.

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

10. The clothes processing device according to any one of claims 1 to 7, characterized in that: The heat pump system further comprises 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) which are connected in sequence form a circulating refrigerant flow path through a refrigerant pipeline.

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

Images