Drying system of clothes treatment equipment and clothes treatment equipment

Abstract

The utility model provides a drying system of clothes processing equipment and the clothes processing equipment, the drying system comprises a heat pump system and a moisture absorption and dehumidification system, and the heat pump system comprises a compressor, a condenser, a throttling element and an evaporator which are connected in sequence; the moisture absorption and dehumidification system comprises a dehumidification rotary table and a rotary table dehumidification device, an adsorption area and a regeneration area are formed on the dehumidification rotary table, and airflow passing through the evaporator can flow to the condenser through the adsorption area; the rotating disc dehumidification device comprises a heater, a first fan and a circulating air duct, air outside the clothes treatment equipment can flow to the regeneration area through the circulating air duct under the driving of the first fan, the air passing through the regeneration area can be discharged out of the clothes treatment equipment through the airflow channel, and the heater can heat the air flowing to the regeneration area. According to the drying system, air passing through the barrel can be dehumidified through the evaporator, and in addition, secondary dehumidification can be conducted on the air passing through the barrel through the adsorption area of the dehumidification rotary disc.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, and particularly relates to a drying system of a clothes treatment equipment and the clothes treatment equipment. BACKGROUND

[0002] With the improvement of living standards, heat pump type clothes dryers are increasingly favored by consumers. The heat pump type clothes dryer is based on heat pump technology and instantly evaporates the moisture in the washed clothes to dry. The heat pump clothes dryer has certain advantages in energy saving, but lacks in drying speed, especially when the ambient temperature is relatively low or relatively high. CONTENT OF THE INVENTION

[0003] The purpose of the embodiment of the present application is to provide a drying system of a clothes treatment equipment and the clothes treatment equipment to solve the technical problem of the lack of drying speed of the heat pump clothes dryer in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0005] The present application provides a drying system of a clothes treatment equipment, comprising:

[0006] The heat pump system comprises a compressor, a condenser, a throttling element and an evaporator connected in sequence;

[0007] The moisture absorption and dehumidification system comprises a dehumidification turntable and a turntable dehumidification device. The dehumidification turntable is arranged between the evaporator and the condenser. The dehumidification turntable has an adsorption area and a regeneration area formed thereon. The airflow passing through the evaporator can flow to the condenser through the adsorption area. The turntable dehumidification device comprises a heater, a first fan and a flow-through air duct. The heater and the first fan are located on the flow-through air duct. Under the drive of the first fan, the air outside the clothes treatment equipment can flow to the regeneration area through the flow-through air duct. The air passing through the regeneration area can be discharged outside the clothes treatment equipment through the airflow passage. The heater can heat the air flowing to the regeneration area.

[0008] In some implementations, the flow-through air duct comprises a first air inlet duct and a first air outlet duct. The heater is located in the first air inlet duct. The first fan is located in the first air inlet duct or the first air outlet duct.

[0009] In some implementations, the turntable dehumidification device comprises a first air inlet duct and a first air outlet duct. The first fan and the heater are located in the first air inlet duct. The first air outlet duct is matched with the regeneration area. Under the drive of the first fan, the air outside the clothes treatment equipment is driven to flow to the regeneration area through the first air inlet duct. The air passing through the regeneration area is discharged outside the clothes treatment equipment through the first air outlet duct.

[0010] In some implementations, the heater is an electric heating pipe, an electric heating wire or a thermistor heater.

[0011] A laundry treating apparatus includes an apparatus main body and a drying system of the laundry treating apparatus according to any one of the above technical solutions; the apparatus main body includes a partition structure, which separates an inner space of the apparatus main body into a drum placement space and a bottom space along a height direction of the apparatus main body, and the drying system is located in the bottom space.

[0012] In some implementations, the first air inlet duct and the first air outlet duct of the heat pump system are both formed in the bottom space.

[0013] In some implementations, the first air inlet duct of the heat pump system is formed in the bottom space, and the first air outlet duct of the heat pump system is formed in the bottom space and the drum placement space.

[0014] In some implementations, the housing of the apparatus main body is provided with an air inlet damper and an air outlet damper, the first air inlet duct is formed with a duct inlet on the housing, the air inlet damper is used to open or close the duct inlet, the first air outlet duct is formed with a duct outlet on the housing, and the air outlet damper is used to open or close the duct outlet.

[0015] In some implementations, the laundry treating apparatus further includes a control device, the heat pump system and the dehumidification system of the drying system are connected to the control device, the control device can control the heat pump system to work alone, can control the dehumidification system to work alone, and can control the heat pump system and the dehumidification system to work simultaneously.

[0016] In some implementations, the laundry treating apparatus further includes a drum temperature detection sensor, the drum temperature detection sensor is connected to the control device, the drum temperature detection sensor is used to detect the temperature in the drum in the laundry treating apparatus, and the control device controls the working state of the dehumidification system according to a signal detected by the drum temperature detection sensor.

[0017] In some implementations, the laundry treating apparatus further includes an ambient temperature detection sensor, the ambient temperature detection sensor is connected to the control device, the ambient temperature detection sensor is used to detect the temperature of the environment, and the control device controls the working state of the dehumidification system according to a signal detected by the ambient temperature detection sensor.

[0018] In some implementations, the laundry treating apparatus further includes a timing device, the timing device is connected to the control device, the timing device is used to time the working time of the heat pump system, and the control device controls the working state of the dehumidification system according to a signal fed back by the timing device.

[0019] A method for drying laundry by using the drying system according to any one of the above technical solutions includes the following contents:

[0020] It is judged whether the conditions for the heat pump system and the dehumidification system to work simultaneously are met.

[0021] If yes, the heat pump system and the moisture dehumidification system are controlled to work simultaneously.

[0022] If no, the moisture dehumidification system is controlled to stop working.

[0023] In some implementations, when the heat pump system is in the working state: it is judged whether the temperature of the drum in the clothes processing device is higher than a third preset temperature value, if yes, the moisture dehumidification system is controlled to stop working, and if no, the moisture dehumidification system is controlled to work.

[0024] In some implementations, when the heat pump system is in the working state: it is judged whether the running time of the heat pump system from starting is less than t1, if less than t1, the moisture dehumidification system is controlled to work, and if not less than t1, the moisture dehumidification system is controlled to stop working.

[0025] It is judged whether the ending running time of the heat pump system is less than t2, if less than t2, the moisture dehumidification system is controlled to work, and if not less than t2, the moisture dehumidification system is controlled to stop working.

[0026] In some implementations, when the heat pump system is in the working state: it is judged whether the temperature of the environment is lower than a first preset temperature value, if yes, the moisture dehumidification system is controlled to work, and if no, the moisture dehumidification system is controlled to stop working.

[0027] In some implementations, it is judged whether the temperature of the environment is higher than a second preset temperature value, if yes, the heat pump system is controlled to stop working, and the moisture dehumidification system is controlled to work, and if no, the heat pump system is controlled to work.

[0028] In some implementations, it is judged whether the conditions for the moisture dehumidification system to work alone are met, if yes, the moisture dehumidification system is controlled to work alone.

[0029] The beneficial effects of the present application are that: the drying system provided by the embodiment can not only dehumidify the air passing through the drum through the evaporator when the heat pump system and the moisture dehumidification system work simultaneously, but also can perform secondary dehumidification on the air passing through the drum through the adsorption area of the dehumidification turntable, so as to reduce the moisture in the air flowing to the condenser, facilitate the air entering the drum after being heated by the condenser to take away more moisture on the clothes, and improve the drying speed of the clothes processing device in a low-temperature environment; in addition, when the environmental temperature is relatively high, only the moisture dehumidification system can be controlled to work, and the dehumidification is performed by the working moisture dehumidification system, so as to avoid the shutdown of the heat pump system in a high-temperature condition and affect the drying speed of the clothes processing device. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 A system diagram of a heat pump type clothes drying machine in the prior art;

[0032] Figure 2 A system diagram of a drying system of a clothes treatment apparatus provided by the embodiments of the present application.

[0033] In the drawings, various reference signs represent:

[0034] 1-compressor; 2-condenser; 3-throttling element; 4-evaporator; 5-dehumidification turntable; 6-heater; 7-first fan; 8-first air inlet duct; 9-first air outlet duct; 10-impeller; 11-cylinder; 12-filter screen; 13-air inlet damper; 14-air outlet damper. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings. The embodiments described by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0036] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] In order to facilitate the clear description of the technical solutions of the present application, the terms "first", "second" and the like are used to distinguish the same items or similar items with basically the same function and effect. Those skilled in the art can understand that the terms "first", "second" and the like do not limit the quantity and execution order, and the terms "first", "second" and the like do not necessarily mean different.

[0038] In the present application, unless specifically defined and limited otherwise, the terms "connected", "connected", and the like shall be broadly interpreted, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships; for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0040] It should be noted that in the present application, the words "in an embodiment", "exemplarily", "for example" and the like are used to represent as an example, illustration or explanation. Any embodiment or design scheme described as "in an embodiment", "exemplarily", "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "in an embodiment", "exemplarily", "for example" and the like is intended to present the relevant concept in a specific way.

[0041] Please refer to Figure 1 , the existing related heat pump type clothes dryer system diagram. The working mode of the heat pump system is as follows: the high-temperature and high-pressure gaseous refrigerant becomes high-pressure and medium-temperature liquid refrigerant after releasing heat through the condenser 2, and then is reduced in temperature and pressure through the throttling element 3 to become low-temperature and low-pressure gas-liquid two-phase refrigerant, which is vaporized into medium-temperature and low-pressure gaseous refrigerant after absorbing heat in the evaporator 4, and is compressed into high-temperature and high-pressure gaseous refrigerant by the compressor 1. The flow direction of the circulating air in the dryer is as follows: the circulating air is heated to high-temperature dry air after passing through the condenser 2, then enters the cylinder 11 through the impeller 10 to take away the moisture on the clothes, and flows to the condenser 2 again after being cooled and condensed into water in the evaporator 4. The liquid water condensed on the surface of the evaporator 4 falls into the water collector below the evaporator 4.

[0042] When the ambient temperature is relatively low, the evaporation temperature of the heat pump system decreases. The evaporation temperature refers to the temperature at which the refrigerant boils in the evaporator. The decrease in evaporation temperature will cause the suction pressure of the compressor 1 to decrease, resulting in a decrease in the heating capacity of the heat pump system, which in turn affects the removal of moisture on the clothes by the circulating air passing through the cylinder 11. Therefore, when in a low-temperature environment, the drying speed of the dryer is low. In addition, when the ambient temperature is relatively high, the compressor 1 of the heat pump system has a large working load and may stop, resulting in slow drying speed.

[0043] To solve the above problem, the present embodiment provides a drying system of a clothes treatment apparatus, which can be a clothes dryer or a washer-dryer, and the clothes treatment apparatus comprises a heat pump system and a moisture absorption and removal system.

[0044] Please refer to Figure 2 , the heat pump system comprises a compressor 1, a condenser 2, a throttling element 3 and an evaporator 4 connected in sequence, and the heat pump system works as follows: the high-temperature and high-pressure gaseous refrigerant becomes high-pressure and medium-temperature liquid refrigerant after releasing heat through the condenser 2, and then becomes low-temperature and low-pressure gaseous-liquid two-phase refrigerant through the throttling element 3, and then enters the evaporator 4 to absorb heat and then enters the compressor 1 to be compressed into high-temperature and high-pressure gaseous refrigerant.

[0045] The moisture absorption and removal system comprises a dehumidification rotating disc 5 and a rotating disc dehumidification device, please refer to Figure 2 , which shows the dehumidification rotating disc 5, which is arranged between the evaporator 4 and the condenser 2, and is used to dehumidify the air passing through it.

[0046] Regarding the dehumidification rotating disc 5, specifically, the dehumidification rotating disc 5 forms an adsorption area and a regeneration area, and the moisture in the humid air passing through the adsorption area of the dehumidification rotating disc 5 will be adsorbed by the moisture absorption material on the dehumidification rotating disc 5; the regeneration area of the dehumidification rotating disc 5 is exposed to hot air, that is, hot air generated by the rotating disc dehumidification device blows to the regeneration area to evaporate the moisture on the moisture absorption material in the regeneration area. The process of the dehumidification rotating disc 5 adsorbing moisture is called adsorption, and the process of the moisture on the dehumidification rotating disc 5 being evaporated is called regeneration, and after the regeneration area of the dehumidification rotating disc 5 regenerates, the adsorption area can be formed by rotating the dehumidification rotating disc 5, so that the moisture in the air passing through the dehumidification rotating disc 5 can be continuously adsorbed. In addition, when the regeneration area of the dehumidification rotating disc 5 regenerates and the adsorption area is formed by rotating the dehumidification rotating disc 5, the adsorption area can heat the air passing through it due to the heat provided by the rotating disc dehumidification device.

[0047] Regarding the moisture absorption material of the dehumidification rotating disc 5, preferably, the moisture absorption material on the dehumidification rotating disc 5 is molecular sieve.

[0048] In the present embodiment, the adsorption area of the dehumidification rotating disc 5 is located between the evaporator 4 and the condenser 2, and the airflow passing through the evaporator 4 can flow to the condenser 2 through the adsorption area, that is, after the air is dehumidified by the evaporator 4, it can be secondarily dehumidified by the adsorption area of the dehumidification rotating disc 5.

[0049] In the present embodiment, the rotating disc dehumidification device comprises a heater 6, a first fan 7 and a flow passage, the heater 6 and the first fan 7 are located on the flow passage, and under the drive of the first fan 7, the air outside the clothes treatment apparatus can flow to the regeneration area through the flow passage, the air passing through the regeneration area can be discharged to the outside of the clothes treatment apparatus through the airflow passage, and the heater 6 can heat the air flowing to the regeneration area. Please refer toFigure 2 The heater 6 and the first fan 7 are shown.

[0050] The heater 6 is used to heat the air flow passing through it, and the heater 6 can be an electric heating tube or an electric heating wire or a thermistor heater. When the first fan 7 works, the air flow is blown to the heater 6, and the heater 6 heats the air passing through it into high-temperature dry air. The high-temperature dry air can take away the moisture in the regeneration area of the dehumidification disc 5 when passing through the regeneration area.

[0051] When the drying system provided by the embodiment is applied to a clothes treatment device and the heat pump system and the moisture absorption and dehumidification system work at the same time, please refer to Figure 2 The flow direction of the circulating air in the clothes treatment device is as follows: the circulating air is heated into high-temperature dry air after passing through the condenser 2, and then enters the cylinder 11 through the impeller 10 to take away the moisture on the clothes. After the air passes through the filter screen 12, it flows to the evaporator 4, and then flows to the adsorption area of the dehumidification disc 5 after being condensed into water by the evaporator 4. The air is dehumidified by passing through the adsorption area of the dehumidification disc 5, and then flows to the condenser 2 to be heated again. The cycle is repeated. When the ambient temperature is relatively low, the heat pump system and the moisture absorption and dehumidification system of the drying system can be controlled to work at the same time to improve the drying speed of the clothes treatment device.

[0052] When the ambient temperature is relatively high, only the moisture absorption and dehumidification system can be controlled to work. The dehumidification is performed by the moisture absorption and dehumidification system, so as to avoid the shutdown of the heat pump system under high temperature, which affects the drying speed of the clothes treatment device.

[0053] Regarding the filter screen 12 arranged at the front end of the air flow of the evaporator 4, the air flow enters the cylinder 11 to take away the lint on the clothes. The filter screen 12 has a filtering effect on the lint in the air to prevent a large amount of lint from being adsorbed on the surface of the evaporator 4, which affects the heat exchange between the evaporator 4 and the air.

[0054] In the embodiment, when the first fan 7 works, the air outside the clothes treatment device is driven to flow to the regeneration area through the flow passage. The air passing through the regeneration area can be discharged outside the clothes treatment device through the air flow passage. In the embodiment, the air passing through the regeneration area of the dehumidification disc 5 is directly discharged outside the clothes treatment device, which is beneficial to simplify the structure of the drying system.

[0055] The drying system provided by the embodiment can not only dehumidify the air passing through the cylinder 11 through the evaporator 4, but also can perform secondary dehumidification on the air passing through the cylinder 11 through the adsorption area of the dehumidification turntable 5, so as to reduce the moisture in the air flowing to the condenser 2, facilitate the air to take away more moisture on the clothes after being heated by the condenser 2, and improve the drying speed of the clothes treatment equipment in a low-temperature environment; when the ambient temperature is relatively high, only the moisture absorption and dehumidification system can be controlled to work, and dehumidification is performed by the moisture absorption and dehumidification system, so as to avoid the situation that the heat pump system stops in a high-temperature condition and affects the drying speed of the clothes treatment equipment.

[0056] Regarding the flow channel, in an embodiment, please refer to Figure 2 , the flow channel includes the first air inlet channel 8 and the first air outlet channel 9, the heater 6 is located in the first air inlet channel 8, and the first fan 7 is located in the first air inlet channel 8 or in the first air outlet channel 9.

[0057] That is, in the embodiment, the first fan 7 can be located in the first air inlet channel 8, or the first fan 7 can be located in the first air outlet channel 9. Of course, two first fans 7 can also be arranged, and the two first fans 7 are located in the first air inlet channel 8 and the first air outlet channel 9, respectively.

[0058] Please refer to Figure 2 , which shows that the heater 6 and the first fan 7 are both located in the first air inlet channel 8, and the first fan 7 is located at the front end of the airflow flow direction of the heater 6. Under the drive of the first fan 7, the air outside the clothes treatment equipment is driven to flow through the first air inlet channel 8 and the heater 6 in the first air inlet channel 8 to the regeneration area, and the air passing through the regeneration area is discharged outside the clothes treatment equipment through the first air outlet channel 9.

[0059] Specifically, the first air inlet channel 8 and the first air outlet channel 9 are formed in the clothes treatment equipment, the channel inlet of the first air inlet channel 8 is formed on the shell of the clothes treatment equipment, and the channel outlet of the first air outlet channel 9 is formed on the shell of the clothes treatment equipment.

[0060] Generally, the shell of the clothes treatment equipment includes a front side plate, a rear side plate, a left side plate, a right side plate, a top plate, and a bottom plate. The top plate and the bottom plate are arranged opposite to each other in the height direction of the clothes treatment equipment, the front side plate and the rear side plate are arranged opposite to each other in the front-rear direction of the clothes treatment equipment, and the left side plate and the right side plate are arranged opposite to each other in the left-right direction of the clothes treatment equipment. Preferably, the channel inlet of the first air inlet channel 8 is formed on the bottom plate, and the channel outlet of the first air outlet channel 9 is formed on the rear side plate.

[0061] In the embodiment, the position of the first fan 7 can be reasonably arranged according to the internal layout of the clothes treatment equipment.

[0062] A laundry treating apparatus includes an apparatus main body and a drying system of the laundry treating apparatus provided by any of the above embodiments; the apparatus main body includes a partition structure, which separates an inner space of the apparatus main body into a drum placing space and a bottom space along a height direction of the apparatus main body, the drying system is located in the bottom space, and a drum 11 of the apparatus main body is located in the drum placing space.

[0063] The heat pump system includes a compressor 1, a condenser 2, a throttling element 3 and an evaporator 4 connected in sequence, the compressor 1, the condenser 2, the throttling element 3 and the evaporator 4 are all located in the bottom space; the dehumidification system includes a dehumidification turntable 5 and a turntable dehumidification device, the dehumidification turntable 5 and the turntable dehumidification device are located in the bottom space.

[0064] The laundry treating apparatus provided by the embodiment can not only dehumidify the air passing through the drum 11 by the evaporator, but also can dehumidify the air passing through the drum 11 by the adsorption area of the dehumidification turntable for the second time, so as to reduce the moisture in the air flowing to the condenser 2, facilitate the air entering the drum 11 after being heated by the condenser 2 to take away more moisture on the laundry, and improve the drying speed of the laundry treating apparatus.

[0065] The flow-through air duct includes a first air inlet duct 8 and a first air outlet duct 9, the heater 6 is located in the first air inlet duct 8, and the first fan 7 is located in the first air inlet duct 8 or the first air outlet duct 9. In one embodiment, the first air inlet duct 8 and the first air outlet duct 9 are both formed in the bottom space, or in another embodiment, the first air inlet duct 8 is formed in the bottom space, and the first air outlet duct 9 is formed in the bottom space and the drum placing space.

[0066] The first air inlet duct 8 is formed in the bottom space, and a duct inlet of the first air inlet duct 8 is arranged on a shell of the apparatus main body, preferably, the duct inlet of the first air inlet duct 8 is formed on a bottom side plate of the apparatus main body.

[0067] The first exhaust air duct 9 is formed in the bottom space or in the bottom space and the drum placing space. When the first exhaust air duct 9 is formed in the bottom space, the air outlet of the first exhaust air duct 9 is arranged on the shell of the equipment main body, preferably on the rear side plate of the equipment main body. When the first exhaust air duct 9 is formed in the bottom space and the drum placing space, an air passage is arranged on the partition structure. Under the drive of the first air fan 7, the air outside the clothes treating equipment flows to the regeneration zone through the first air inlet duct 8, and then flows to the drum placing space through the air passage. Generally, the rear side plate of the equipment main body is provided with a heat dissipation hole, and the air flowing into the drum placing space is discharged outside the equipment main body through the heat dissipation hole. At this time, the heat dissipation hole serves as the air outlet of the first exhaust air duct 9. Of course, an opening communicating with the drum placing space can be additionally arranged on the shell of the equipment main body as the air outlet of the first exhaust air duct 9.

[0068] In this embodiment, the first air inlet duct 8 is arranged in the bottom space, the first exhaust air duct 9 is arranged in the bottom space or the first exhaust air duct 9 is arranged in the bottom space and the drum placing space, so that the air outside the clothes treating equipment flows to the regeneration zone of the dehumidification turntable 5 and is then discharged outside the equipment main body.

[0069] In one embodiment, the shell of the equipment main body is provided with an air inlet damper 13 and an air outlet damper 14. The air inlet damper 13 is used to open or close the air inlet of the first air inlet duct 8, and the air outlet damper 14 is used to open or close the air outlet of the first exhaust air duct 9.

[0070] Please refer to Figure 2 , which shows the air inlet damper 13 and the air outlet damper 14. The air inlet damper 13 and the air outlet damper 14 are connected with the control device of the clothes treating equipment. When the rotary dehumidification system is in the working state, the air inlet damper 13 and the air outlet damper 14 are controlled to be opened, i.e. the air inlet damper 13 is controlled to open the air inlet of the first air inlet duct 8, and the air outlet damper 14 is controlled to open the air outlet of the first exhaust air duct 9. When the rotary dehumidification system is not working, the air inlet damper 13 and the air outlet damper 14 are controlled to be closed, i.e. the air inlet damper 13 is controlled to close the air inlet of the first air inlet duct 8, and the air outlet damper 14 is controlled to close the air outlet of the first exhaust air duct 9.

[0071] Preferably, a filtering device is arranged at the air inlet of the first air inlet duct 8, so as to filter the air flowing into the first air inlet duct 8.

[0072] In this embodiment, the air inlet damper 13 and the air outlet damper 14 are arranged, so as to prevent sundries from entering the clothes treating equipment through the air inlet of the first air inlet duct 8 and the air outlet of the first exhaust air duct 9 when the rotary dehumidification system is not working.

[0073] In an embodiment, the clothes treating apparatus further comprises a control device, the heat pump system and the desiccant system are connected to the control device, the control device is capable of controlling the heat pump system to work alone, is capable of controlling the desiccant system to work alone, and is capable of controlling the heat pump system and the desiccant system to work simultaneously.

[0074] That is, the working modes of the clothes treating apparatus provided by the embodiment include three modes, which are a single heat pump system dehumidification mode, a single desiccant system dehumidification mode, and a heat pump and desiccant system simultaneous working dehumidification mode. The single heat pump system dehumidification mode means that only the heat pump system works, the single desiccant system dehumidification mode means that only the desiccant system works, and the heat pump and desiccant system simultaneous working dehumidification mode means that the heat pump system and the desiccant system work simultaneously.

[0075] Specifically, when the single desiccant system dehumidification mode is adopted, when the humid air passes through the adsorption area of the dehumidification turntable 5, the adsorption area can adsorb the moisture in the air to achieve the effect of dehumidification. In addition, as described above, when the regeneration area of the dehumidification turntable 5 is regenerated and forms an adsorption area by rotation of the dehumidification turntable 5, the adsorption area can have a heating effect on the air passing through it because the adsorption area has the heat provided by the dehumidification turntable at this time. Therefore, when the single desiccant system dehumidification mode is adopted, the clothes in the drum can also be dried.

[0076] When the clothes treating apparatus performs drying of wet clothes once, one working mode can be run in the process of drying once, for example, only the single heat pump system dehumidification mode is run or only the heat pump and desiccant system simultaneous working dehumidification mode is run; or in the process of drying clothes once, the single heat pump system dehumidification mode, the heat pump and desiccant system simultaneous working dehumidification mode, and the single desiccant system dehumidification mode can be run respectively at different time periods.

[0077] For example, when the ambient temperature is relatively low, in order to improve the efficiency of the clothes treating apparatus in drying clothes, the clothes treating apparatus can be controlled to run the heat pump and desiccant system simultaneous working dehumidification mode; when the ambient temperature is relatively high, in order to avoid the situation that the heat pump system compressor 1 stops working due to large working load, the clothes treating apparatus can be controlled to run the single heat pump system dehumidification mode.

[0078] In the embodiment, the clothes treatment apparatus can automatically determine the mode to be operated; or / and, three operation keys can be provided on the clothes treatment apparatus, and the three operation keys correspond to a high-efficiency dehumidification operation key, a medium-efficiency dehumidification operation key, and a low-efficiency dehumidification operation key respectively. When the user presses the high-efficiency dehumidification operation key, the clothes treatment apparatus operates in the dehumidification mode in which the heat pump and the rotary wheel work simultaneously. When the user presses the medium-efficiency dehumidification operation key, the clothes treatment apparatus operates in the dehumidification mode in which the single heat pump system works. When the user presses the low-efficiency dehumidification operation key, the clothes treatment apparatus operates in the dehumidification mode in which the single moisture absorption dehumidification system works.

[0079] In the embodiment, the clothes treatment apparatus includes three working modes, so that the clothes treatment apparatus can operate in different working modes according to different conditions.

[0080] In an embodiment, the clothes treatment apparatus further includes a drum temperature detection sensor connected to the control device, and the drum temperature detection sensor is used to detect the temperature in the drum of the clothes treatment apparatus. The control device controls the working state of the moisture absorption dehumidification system according to the signal detected by the drum temperature detection sensor.

[0081] Specifically, when the clothes treatment apparatus dries the clothes in the drum, the drum temperature detection sensor detects the temperature in the drum in real time and transmits the detected temperature signal to the control device. When the control device determines that the temperature of the drum is lower than a third preset temperature value, for example, the third preset temperature value is 65℃, the control device controls the heat pump system and the moisture absorption dehumidification system to work simultaneously. When the control device determines that the temperature of the drum is not lower than the preset value, the control device controls only the heat pump system to work.

[0082] In the embodiment, the working state of the moisture absorption dehumidification system is determined according to the temperature in the drum, so that the clothes can be quickly dried, and the energy saving effect is achieved.

[0083] In an embodiment, the clothes treatment apparatus further includes an ambient temperature detection sensor connected to the control device, and the ambient temperature detection sensor is used to detect the temperature of the environment. The control device controls the working state of the moisture absorption dehumidification system and the heat pump system according to the signal detected by the ambient temperature detection sensor.

[0084] Specifically, when the clothes treatment apparatus dries the clothes in the drum, the ambient temperature detection sensor detects the temperature of the environment in which the clothes treatment apparatus is located in real time and transmits the detected temperature signal to the control device. When the control device determines that the temperature of the environment is lower than a first preset temperature value, the control device controls the heat pump system and the moisture absorption dehumidification system to work simultaneously. When the control device determines that the temperature of the environment is not lower than the first preset temperature value, the control device controls only the heat pump system to work.

[0085] As described above, when the ambient temperature is relatively low, the drying speed of the clothes drying machine is low. In this embodiment, when the ambient temperature is detected to be low, the heat pump system and the moisture absorption and dehumidification system are controlled to work simultaneously to improve the drying speed of the clothes treatment apparatus.

[0086] Specifically, when the clothes treatment apparatus is drying the clothes in the drum 11, the ambient temperature of the clothes treatment apparatus is detected in real time by the ring temperature detection sensor, and the detected temperature signal is transmitted to the control device. When the control device determines that the ambient temperature is higher than the second preset temperature value, the moisture absorption and dehumidification system is controlled to work.

[0087] When the ambient temperature is relatively high, the working load of the compressor 1 of the heat pump system is large, and the heat pump system may stop working. Therefore, when the ambient temperature is higher than the second preset temperature value, the heat pump system is controlled to stop working, and the moisture absorption and dehumidification system is controlled to work to dehumidify. In this embodiment, when the ambient temperature is relatively high, only the moisture absorption and dehumidification system is controlled to work to dehumidify, so that the heat pump system is prevented from stopping working under high temperature.

[0088] In an embodiment, the clothes treatment apparatus further comprises a timing device connected to the control device. The timing device is used to time the working time of the heat pump system, and the control device controls the working state of the moisture absorption and dehumidification system according to the signal fed back by the timing device.

[0089] For example, in one example, when the heat pump system is in the working state, the timing device times the working time of the heat pump system, and the control device determines whether the running time of the heat pump system from the start is less than t1 according to the signal transmitted by the timing device. If yes (t1 can be 2-5 min), the moisture absorption and dehumidification system is controlled to work, and if no, the moisture absorption and dehumidification system is controlled to stop working. For example, in another example, when the heat pump system is in the working state, the control device determines whether the running time of the heat pump system from the end is less than t2 according to the signal transmitted by the timing device. If yes (t2 can be 2-5 min), the moisture absorption and dehumidification system is controlled to work, and if no, the moisture absorption and dehumidification system is controlled to stop working.

[0090] In the prior art, when the clothes are dried by the heat pump clothes drying machine, the energy efficiency is relatively low when the heat pump system is just started, and the drying efficiency of the clothes drying machine is low. In this embodiment, the heat pump system and the moisture absorption and dehumidification system are controlled to work simultaneously within t1 time after the heat pump system is started and works, so as to improve the drying efficiency of the clothes drying machine.

[0091] In the prior art, when a heat pump type clothes dryer is used to dry clothes, in the last stage of drying, the moisture on the clothes decreases, the air entering the drum takes away the reduced moisture on the clothes, the heat absorbed by the evaporator 4 decreases, and thus the energy efficiency of the heat pump system is affected. In the present embodiment, when the heat pump system is still t2 away from ending operation, the heat pump system is controlled to work simultaneously with the moisture absorption and dehumidification system, which is beneficial to improve the drying efficiency of the clothes dryer.

[0092] In the present embodiment, the working state of the moisture absorption and dehumidification system is controlled according to the working time of the heat pump system, so as to control the moisture absorption and dehumidification system to work in the case that the energy efficiency of the heat pump system is low, which is beneficial to improve the drying efficiency of the clothes dryer.

[0093] A method for drying clothes by using the drying system of the clothes treatment equipment provided in any of the above embodiments, comprising the following contents:

[0094] determining whether the condition for the heat pump system and the moisture absorption and dehumidification system to work simultaneously is met;

[0095] if yes, controlling the heat pump system and the moisture absorption and dehumidification system to work simultaneously;

[0096] if no, controlling the moisture absorption and dehumidification system to stop working.

[0097] As mentioned above, the heat pump system comprises a compressor 1, a condenser 2, a throttling element 3 and an evaporator 4 connected in sequence; the moisture absorption and dehumidification system comprises a dehumidification turntable 5 and a turntable dehumidification device, the dehumidification turntable 5 is formed with an adsorption area and a regeneration area, the turntable dehumidification device comprises a heater 6 and a first fan 7, the dehumidification turntable 5 is arranged between the evaporator 4 and the condenser 2, the air flow passing through the evaporator 4 can flow to the condenser 2 through the adsorption area, and under the action of the first fan 7, the air can flow to the regeneration area through the heater 6. Since the heat pump system has a better effect on drying clothes than the moisture absorption and dehumidification system, when drying clothes, the heat pump system can be mainly used to work, but under certain conditions such as relatively low energy efficiency of the heat pump system, the heat pump system and the moisture absorption and dehumidification system can be controlled to work simultaneously, so as to improve the efficiency of the clothes treatment equipment in drying clothes.

[0098] In one embodiment, when the heat pump system is in a working state: determining whether the temperature of the drum in the clothes treatment equipment is higher than a preset temperature, if yes, controlling the moisture absorption and dehumidification system to stop working, and if no, controlling the moisture absorption and dehumidification system to work.

[0099] Specifically, when the laundry treatment apparatus dries the laundry in the drum, the drum temperature detection sensor detects the temperature in the drum in real time and transmits the detected temperature signal to the control device, and when the control device determines that the temperature of the drum is lower than a third preset temperature value, such as 65℃, the control device controls the heat pump system and the dehumidification system to work simultaneously, and when the control device determines that the temperature of the drum is not lower than the preset value, the control device controls only the heat pump system to work and controls the dehumidification system to stop working.

[0100] In this embodiment, by setting the working state of the dehumidification system according to the temperature in the drum, the laundry can be quickly dried, and the energy saving effect is achieved.

[0101] In one embodiment, when the heat pump system is in a working state: it is determined whether the running time of the heat pump system from start-up is less than t1, if yes, the dehumidification system is controlled to work, and if no, the dehumidification system is controlled to stop working; it is determined whether the running time of the heat pump system from end is less than t2, if yes, the dehumidification system is controlled to work, and if no, the dehumidification system is controlled to stop working.

[0102] In the prior art, when a heat pump type clothes dryer is used to dry laundry, the energy efficiency of the heat pump system is relatively low when it is just started, and the drying efficiency of the clothes dryer is low. In this embodiment, the heat pump system and the dehumidification system are controlled to work simultaneously within t1 time after the heat pump system is started and works, which is beneficial to improve the drying efficiency of the clothes dryer.

[0103] In the prior art, when a heat pump type clothes dryer is used to dry laundry, when drying to the last stage, the moisture on the laundry decreases, the air entering the drum carries less moisture on the laundry, the heat absorption of the evaporator 4 decreases, and thus the energy efficiency of the heat pump system is affected. In this embodiment, the heat pump system and the dehumidification system are controlled to work simultaneously when the heat pump system is still t2 away from the end of operation, which is beneficial to improve the drying efficiency of the clothes dryer.

[0104] Regarding the time t1 and t2, for example, t1 is 2-5min, and t2 is 2-5min.

[0105] In this embodiment, by controlling the working state of the dehumidification system according to the working time of the heat pump system, the dehumidification system is controlled to work when the energy efficiency of the heat pump system is low, which is beneficial to improve the drying efficiency of the clothes dryer.

[0106] In one embodiment, when the heat pump system is in a working state: it is determined whether the temperature of the environment is lower than a preset temperature value, if yes, the dehumidification system is controlled to work; and if no, the dehumidification system is controlled to stop working.

[0107] Specifically, when the laundry treatment apparatus dries the laundry in the drum, the ambient temperature detection sensor detects the temperature of the environment in which the laundry treatment apparatus is located in real time, and transmits the detected temperature signal to the control device, and when the control device determines that the ambient temperature is lower than the first preset temperature value, the heat pump system and the dehumidification system are controlled to work simultaneously; when the control device determines that the ambient temperature is not lower than the first preset temperature value, only the heat pump system is controlled to work.

[0108] In this embodiment, the heat pump system and the dehumidification system can be controlled to work simultaneously when the ambient temperature is detected to be low, so as to improve the speed of drying the laundry by the laundry treatment apparatus.

[0109] In an embodiment, it is determined whether the temperature of the environment is higher than the second preset temperature value, and if yes, the heat pump system is controlled to stop working, and the dehumidification system is controlled to work; and if no, the heat pump system is controlled to work.

[0110] When the ambient temperature is relatively high, the compressor 1 of the heat pump system has a large working load and may stop working; therefore, when it is determined whether the temperature of the environment is higher than the second preset temperature value, the heat pump system can be controlled to stop working, and the dehumidification system is controlled to work to dehumidify.

[0111] In this embodiment, when the ambient temperature is relatively high, only the dehumidification system can be controlled to work to dehumidify, so as to avoid the situation that the heat pump system stops working at high temperature.

[0112] In an embodiment, it is determined whether the condition for the dehumidification system to work alone is met; and if yes, the dehumidification system is controlled to work alone.

[0113] That is, the method for drying laundry provided in this embodiment further comprises dehumidifying the laundry by the dehumidification system alone, that is, when the condition for the dehumidification system to work alone is met, such as when the laundry treatment apparatus receives an instruction that only the dehumidification system works, the dehumidification system can be controlled to work alone.

[0114] The above merely provides the preferred embodiments of the present application, but should not be used to limit the present application, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drying system of a laundry treating apparatus, characterized by, The application relates to a clothes treating device and a drying system thereof. The clothes treating device comprises a heat pump system and a moisture absorbing and removing system. The heat pump system comprises a compressor (1), a condenser (2), a throttling element (3) and an evaporator (4) connected in sequence.

2. The drying system of the laundry treating apparatus according to claim 1, wherein, The moisture absorbing and removing system comprises a moisture absorbing and removing rotary disc (5) and a rotary disc moisture absorbing and removing device. 3.The laundry treating apparatus's drying system of claim 2, wherein, The moisture absorbing and removing rotary disc (5) is arranged between the evaporator (4) and the condenser (2). 4.A laundry treating apparatus, characterized by, The moisture absorbing and removing rotary disc (5) is provided with an absorbing area and a regenerating area. 5.The laundry treating apparatus of claim 4, wherein, The air current passing through the evaporator (4) can flow to the condenser (2) through the absorbing area under the driving of an impeller (10). 6.The laundry treating apparatus of claim 4, wherein, The rotary disc moisture absorbing and removing device comprises a heater (6), a first fan (7) and a flow passage. 7.The laundry treating apparatus of claim 4, wherein the first and second openings are formed in the first and second sides of the cabinet, respectively. The heater (6) and the first fan (7) are arranged on the flow passage. The air outside the clothes treating device can flow to the regenerating area through the flow passage under the driving of the first fan (7). The air passing through the regenerating area can be discharged outside the clothes treating device through the air current passage. The heater (6) can heat the air flowing to the regenerating area. The flow passage comprises a first air inlet passage (8) and a first air outlet passage (9). The heater (6) is arranged on the first air inlet passage (8). The heater (6) is an electric heating pipe, an electric heating wire or a thermistor heater. The drying system comprises a device body and the clothes treating device. The device body comprises a partition structure. The partition structure divides the internal space of the device body into a drum placing space and a bottom space along the height direction of the device body. The first air inlet passage (8) and the first air outlet passage (9) of the heat pump system are arranged in the bottom space. The first air inlet passage (8) of the heat pump system is arranged in the bottom space. The first air outlet passage (9) of the heat pump system is arranged in the bottom space and the drum placing space. An air inlet damper (13) and an air outlet damper (14) are arranged on the shell of the device body. The first air inlet passage (8) is provided with a passage inlet on the shell. The air inlet damper (13) is used for opening or closing the passage inlet. The first air outlet passage (9) is provided with a passage outlet on the shell. The air outlet damper (14) is used for opening or closing the passage outlet. The clothes treating device further comprises a control device. The heat pump system and the moisture absorbing and removing system of the drying system are connected with the control device. The control device can control the heat pump system to work alone, can control the moisture absorbing and removing system to work alone and can control the heat pump system and the moisture absorbing and removing system to work simultaneously. 8.The laundry treating apparatus of claim 4, wherein, The laundry treatment apparatus further comprises a drum temperature detection sensor connected to a control device of the laundry treatment apparatus, the drum temperature detection sensor being configured to detect a temperature inside a drum of the laundry treatment apparatus, and the control device being configured to control an operation state of the heat pump system based on a signal detected by the drum temperature detection sensor. 9.The laundry treating apparatus of claim 4, wherein, The laundry treatment apparatus further comprises an ambient temperature detection sensor connected to a control device of the laundry treatment apparatus, the ambient temperature detection sensor being configured to detect a temperature of an ambient, and the control device being configured to control an operation state of the heat pump system based on a signal detected by the ambient temperature detection sensor. 10.The laundry treating apparatus of claim 4, wherein The laundry treatment apparatus further comprises a timer connected to a control device of the laundry treatment apparatus, the timer being configured to time an operation time of the heat pump system, and the control device being configured to control an operation state of the heat pump system based on a signal fed back by the timer.

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