CN220643573U

CN220643573U - Clothes treatment equipment with drying function

Info

Publication number: CN220643573U
Application number: CN202322106472.2U
Authority: CN
Inventors: 王瑀宁; 龙斌华; 刘二磊
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-03-22
Anticipated expiration: 2033-08-04

Abstract

The utility model provides clothes treatment equipment with a drying function, which can enable the introduced fresh air to be directly discharged or enter a rear air duct to participate in circulation according to different drying processes by introducing fresh air and adding a connecting air duct between a fresh air duct and a main circulation air duct, so that the problems that when a condensing air duct is singly used, the water content of clothes is reduced to a certain extent, the drying efficiency is reduced, the damage to clothes is easily caused by overhigh temperature at the later stage, and the clothes are easily wrinkled are solved, and the problem that the energy consumption of singly using a direct-discharge mode to dry the clothes is overhigh is also solved.

Description

Clothes treatment equipment with drying function

Technical Field

The utility model belongs to clothes treatment equipment, and particularly relates to clothes treatment equipment with a drying function.

Background

The traditional clothes drying device is characterized in that the drying principle is that air is heated by an electric heating device in an air duct and then enters a barrel, wet and hot air is formed after the air is contacted with clothes, then the wet and hot air enters a condensation air duct and is combined with condensed water to form dry air, and the dry air is heated by the electric heating device and then enters the barrel, so that the aim of drying the clothes is achieved through repeated circulation. By using the traditional drying method, particularly in the later stage of the drying stage, when the water content in the air is low, the condensation efficiency is rapidly reduced, the drying time is long, the later temperature is too high, the clothes are easily damaged, and the clothes are easily wrinkled; and by adopting in-line drying, although the temperature is lower at the end of drying to protect clothes, the drying efficiency is lower at the early stage of the drying stage.

Disclosure of Invention

In view of the above, the present utility model provides a clothes treatment apparatus with a drying function, so as to solve the problems that in the prior art, when a conventional drying method is used alone, the temperature is too high in the later stage of the drying stage, the clothes are easily damaged, and the clothes are easily wrinkled; but the direct-discharging type drying is singly used, the drying efficiency in the early stage of the drying stage is lower, and the like.

An embodiment of the present utility model provides a laundry treating apparatus having a drying function, including:

a laundry treating tub provided with a laundry treating chamber for treating laundry and a third air port, a first air port, and a second air port communicating with the laundry treating chamber;

the main circulation air duct is connected between the third air port and the first air port and provides an airflow flow path from the third air port to the first air port;

one end of the air exhaust air duct is communicated with the second air port, and the other end of the air exhaust air duct is communicated with the external environment of the clothes treatment equipment;

the fresh air duct is communicated with the external environment of the clothes treatment equipment at one end, and is communicated with the main circulation duct at the other end, wherein a communication port communicated with the main circulation duct is an A port;

the connecting air duct is connected between the main circulating air duct and the exhaust air duct, wherein a communication port communicated with the exhaust air duct is a C port, and a communication port communicated with the main circulating air duct is a B port;

on the main circulation air duct, an A port communicated with the main circulation air duct by the fresh air duct is positioned at the downstream of a B port communicated with the main circulation air duct by the exhaust air duct and is close to the first air port;

the condensing equipment, the main circulating fan and the heating equipment are sequentially arranged on the main circulating air duct;

the first valve and the fresh air fan are sequentially arranged on the fresh air duct;

the second valve is arranged on the exhaust air duct and is positioned at one side of the port C away from the second air port;

the clothes treatment equipment is provided with a fresh air direct-discharging mode and a fresh air circulating mode, and the first valve, the second valve, the fresh air fan and the main circulating fan can be cooperatively controlled to selectively execute the fresh air direct-discharging mode or the fresh air circulating mode according to the drying process;

the cooperative control relation among the first valve, the second valve, the fresh air fan and the main circulating fan in the fresh air direct-discharging mode and the fresh air circulating mode is as follows:

in the fresh air direct-discharge mode, the fresh air fan is in an opening state, the first valve is in an opening state, and the second valve is in an opening state;

and in the fresh air circulation mode, the fresh air fan is in an opening state, the first valve is in an opening state, and the second valve is in a closing state.

Further optionally, the main circulation fan and the heating device are positioned between an A port and a B port of the main circulation air duct;

the condensing equipment is arranged between the port B and the third air port.

Further optionally, the main circulation air duct includes a rear air duct connected to a rear portion of the laundry treatment tub and a front air duct connected to a front portion of the laundry treatment tub, the rear air duct being connected to the third air port, the front air duct being connected to the first air port;

the condensing equipment is arranged on the rear air duct;

the heating equipment and the main circulating fan are arranged on the front air duct.

Further alternatively, between the a port and the first tuyere, an auxiliary gas treatment device is provided for performing auxiliary treatment on the gas flow flowing into the first tuyere;

the auxiliary treatment comprises humidity treatment and/or sterilization and disinfection treatment and/or peculiar smell removal treatment;

the auxiliary gas treatment device comprises a steam humidifying module and/or a dehumidifying module and/or a sterilizing module and/or an odor removing module.

Further optionally, the clothes treatment device is further provided with a condensation drying mode, the first valve and the second valve are respectively in a closed state in the condensation drying mode, and the fresh air fan does not operate.

Further optionally, the drying process of the clothes treatment device includes a plurality of drying stages, and the first valve, the second valve, the fresh air fan and the main circulation fan are cooperatively controlled to execute a condensation drying mode, a fresh air circulation mode and a fresh air direct-discharge mode according to different stages of drying according to a preset rule.

Further optionally, the plurality of drying stages includes a pre-drying stage, a mid-drying stage, and a post-drying stage;

the first valve, the second valve, the fresh air fan and the main circulating fan are cooperatively controlled to execute a condensation drying mode, a fresh air circulating mode and a fresh air direct-discharge mode according to different drying stages and a preset rule, wherein the condensation drying mode, the fresh air circulating mode and the fresh air direct-discharge mode are as follows:

in the early drying stage, the first valve, the second valve, the fresh air fan and the main circulating fan are cooperatively controlled to execute a condensation drying mode;

in the middle-stage drying stage, the first valve, the second valve, the fresh air fan and the main circulating fan are cooperatively controlled to execute a fresh air circulating mode;

and in the later drying stage, the first valve, the second valve, the fresh air fan and the main circulating fan are cooperatively controlled to execute a fresh air direct-discharge mode.

Further optionally, the clothes treatment device is provided with a humidity sensor and a temperature sensor for detecting the temperature and humidity in the clothes treatment cavity;

the first valve, the second valve, the fresh air fan and the main circulating fan are cooperatively controlled to selectively execute the condensation drying mode, the fresh air circulating mode and the fresh air direct-discharge mode according to the temperature and the humidity in the clothes treatment cavity:

executing a condensing and drying mode when the temperature in the clothes treatment cavity is smaller than or equal to a first preset temperature and the humidity is larger than or equal to a first preset humidity;

executing a fresh air circulation mode when the temperature in the clothes treatment cavity is greater than a first preset temperature and less than or equal to a second preset temperature, and the humidity is less than the first preset humidity and greater than or equal to the second preset humidity;

and executing a fresh air direct-discharging mode when the temperature in the clothes treatment cavity is higher than a second preset temperature and the humidity is lower than the second preset humidity.

Further optionally, the clothes treatment device is further provided with a pressure sensor, and when the pressure sensor monitors that the air pressure in the clothes treatment cavity is greater than or equal to a preset pressure in the fresh air circulation mode, the second valve (102) is controlled to be opened intermittently so that the air pressure in the clothes treatment cavity is not greater than the preset pressure.

Further alternatively, the laundry treatment tub is provided with a ventilation opening communicating with the laundry treatment chamber, the ventilation opening is provided with a ventilation valve, when the pressure sensor detects that the pressure in the laundry treatment chamber exceeds a preset pressure, the ventilation valve is controlled to be opened, and the ventilation opening exhausts air to the external environment of the laundry treatment apparatus until the air pressure in the laundry treatment chamber is less than the preset pressure, and the ventilation valve is closed again.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

Fig. 1: a schematic structural view of an embodiment of the laundry treatment apparatus of the present utility model;

fig. 2: an airflow path diagram of a condensing and drying mode according to the embodiment of fig. 1 of the present utility model;

fig. 3: the embodiment of the utility model shown in FIG. 1 is an airflow path diagram of a fresh air in-line mode;

fig. 4: the embodiment of the present utility model shown in fig. 1 is an airflow path diagram in fresh air circulation mode.

In the figure:

1-a box body 1; 2-an outer cylinder 2; 21-a first tuyere 21; 22-a second tuyere 22; 23-a third tuyere 23; 3-an inner cylinder 3; 4-a main circulation air duct 4; 5-a condensing inlet pipe 5; 6-a main circulation fan 6; 7-a heating device 7; 8-a condensing device 8; 9-a fresh air fan 9; 10-a humidity detector 10; 11-a steam device 11; 12-an exhaust air duct 12; 13-a fresh air duct 13; 14-connecting the air duct 14;151-a port 151;152-B port 152;153-C port 153; 101-a first valve; 102-second valve.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two, but does not exclude the case of at least one.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.

Aiming at the problems that the prior art can not realize a plurality of drying modes, the system is complex, the drying efficiency is low and the customer experience feel is poor, the application optimizes the drying system on one hand, the novel condensing and drying device can introduce fresh air according to the need on the basis of the traditional condensing and drying mode, and can selectively execute different drying modes according to the drying process.

The following describes specific embodiments of the present utility model in connection with specific examples.

Example 1

As a typical application scenario of the laundry treatment apparatus having the drying function, the present embodiment takes a washing and drying machine (i.e., a washing and drying integrated machine) as an example, and detailed description is given of the specific embodiments of the present application.

As shown in fig. 1 in particular, the laundry treating apparatus with a drying function of the present embodiment includes:

a laundry treating tub provided with a laundry treating chamber for treating laundry and a third air port 23, a first air port 21, and a second air port 22 communicating with the laundry treating chamber;

a main circulation duct 4 connected between the third air port 23 and the first air port 21 to provide an airflow flow path from the third air port 23 to the first air port 21;

an exhaust air duct 12, wherein one end of the exhaust air duct 12 is communicated with the second air port 22, and the other end of the exhaust air duct is communicated with the external environment of the clothes treatment equipment;

the fresh air duct 13, one end of the fresh air duct 13 is communicated with the external environment of the clothes treatment equipment, the other end of the fresh air duct is communicated with the main circulation duct 4, and a communication port communicated with the main circulation duct 4 is an A port 151;

the connecting air duct 14 is connected between the main circulation air duct 4 and the exhaust air duct 12, wherein a communication port communicated with the exhaust air duct 12 is a C port 153, and a communication port communicated with the main circulation air duct 4 is a B port 152;

on the main circulation air duct 4, an A port 151, through which the fresh air duct 13 is communicated with the main circulation air duct 4, is positioned downstream of a B port 152, through which the exhaust air duct 12 is communicated with the main circulation air duct 4, and is close to the first air port 21;

the condensing equipment 8, the main circulating fan 6 and the heating equipment 7 are sequentially arranged on the main circulating air duct 4, the specific condensing equipment is dehumidifying equipment taking cooling water as a cooling medium, and the heater can be an electric heater;

the first valve 101 and the fresh air fan 9 are sequentially arranged on the fresh air duct 13; preferably, the first valve 101 may be an electrically operated valve, and may be opened or closed intermittently according to the drying process and the drying mode, so as to prevent the rapid temperature decrease in the clothes treating chamber caused by too fast fresh air introduction from affecting the drying process.

The second valve 102 is arranged on the exhaust air duct 12 and is positioned at one side of the C port 153 away from the second air port 22; preferably, the second valve 102 may be an electric valve, on the one hand, the pressure in the clothes treating chamber is ensured to be within a certain range by intermittently opening and closing the clothes treating chamber according to the drying process and the drying mode, so as to avoid the increase of the energy of the main circulation fan or the fresh air machine caused by the overhigh pressure in the chamber, and on the other hand, the second valve also can be used as an adjusting measure for ensuring the temperature in the clothes treating chamber within a preset range, so that the clothes can be dried sufficiently in a temperature-controllable and pressure-controllable drying environment, the energy consumption can be reduced, and in addition, the second valve also can be used as an emergency measure, and when the temperature in the clothes treating chamber is overhigh, the air is exhausted outwards rapidly so as to avoid the overhigh temperature in the clothes treating chamber, so that the clothes are damaged.

The laundry treatment apparatus may be further optimized to: the main circulation fan 6 and the heating device 7 are positioned between an A port 151 and a B port 152 of the main circulation air duct 4; the condensing device is disposed between the B port 152 and the third tuyere 23. Thus, in any mode, the third air port 23 and the second air port 22 are used together as an air outlet of the drying air flow, and the first air port 21 is used as an air inlet of the drying air flow. Therefore, no matter what drying mode is, a uniform airflow field can be formed in the drum, clothes in the drum can be fully unfolded in the drum due to the attraction of the airflow, and moisture in the drum is more efficiently taken away by the airflow.

In the art, the main circulation duct 4 is generally divided into a front duct and a rear duct. Wherein the air duct section extending toward the top of the drum, which is led out from the first air outlet of the laundry treating tub, is regarded as the rear air duct, and the air duct section extending from the top of the rear air duct to the front drum portion of the laundry treating tub in the axial direction of the drum and connected to the third air outlet 23 is regarded as the front air duct. The condensing device is arranged on the rear air duct, and the condensing device can be existing devices known in the art; the heating device 7 and the main circulating fan 6 are arranged on the front air duct, wherein the heating device 7 provides heat for drying and heating (preferably an electric heating device), and the main circulating fan 6 provides circulating power for drying air flow. Therefore, the fresh air direct-discharging mode, the fresh air circulating mode and the condensing and drying mode can be conveniently and more energy-saving.

Based on the implementation example of the drying system with the structure, the embodiment can conveniently select the adaptive drying mode according to the drying process, thereby not only providing better drying effect of clothes, but also saving more energy and improving customer experience.

The clothes processing apparatus of this embodiment is provided with a condensation drying mode, a fresh air direct-discharging mode and a fresh air circulating mode, and the first valve 101, the second valve 102, the fresh air fan 9 and the main circulating fan 6 can be cooperatively controlled to selectively execute the fresh air direct-discharging mode, the fresh air circulating mode or the condensation drying mode according to the drying process, and the specific cooperative control relationship between the fresh air direct-discharging mode and the fresh air circulating mode of the first valve 101, the second valve 102, the fresh air fan 9 and the main circulating fan 6 is as follows:

in the fresh air direct-discharge mode, the fresh air fan 9 is in an open state, the first valve 101 is in an open state, and the second valve 102 is in an open state;

in the fresh air circulation mode, the fresh air fan 9 and the main circulation fan 6 are in an open state, the first valve 101 is in an open state, and the second valve 102 is in a closed state.

In the condensing and drying mode, the fresh air fan 9 does not operate, the main circulation fan 6 is in an open state, and the first valve 101 and the second valve 102 are respectively in a closed state.

Fig. 2-4 schematically illustrate the airflow paths of the present embodiment in different drying modes.

Specifically, as shown in fig. 2, in the airflow flow path in the condensing and drying mode in this embodiment, in the condensing and drying mode, the fresh air fan, the first valve 101 and the second valve 102 are all closed, the drying system forms a closed circulation system, and the airflow flow direction is shown by an arrow in fig. 2: the air flow and the water flow direction inside the rear air duct are unchanged, the air is heated by a heater in the rear air duct and then is introduced into the clothes treatment barrel through the front air duct, wet and hot air is formed by contacting clothes, then the wet and hot air enters the condensing air duct (provided with a water-cooling heat exchange device) of the rear air duct again, and is combined with condensed water to form dry air, and the dry air enters the clothes treatment barrel after being heated by the heater arranged at the downstream of the water-cooling heat exchange device, so that the clothes are dried after circulation.

When the fresh air direct-discharging mode is executed, at this time, the first valve 101 on the fresh air duct 13 is opened, the fresh air fan 9 is put into operation, the second valve 102 is opened, and the flow direction of the air flow is shown by an arrow in fig. 3: when fresh air is needed, the fresh air fan 9 rotates to drive fresh air to enter, the humidity sensor 10 detects the humidity of the fresh air, the dehumidifying device 8/the steam device 11 adjusts the humidity of the fresh air to a proper range, the fresh air enters the washing tub to be contacted with damp and hot clothes, the fresh air is discharged to an exhaust pipeline through the second air port 22, and then the exhaust pipeline leads out the drying air flow to the external environment to form a direct-discharge drying mode.

When the fresh air circulation mode is executed, the first valve 101 on the fresh air duct 13 is opened, the fresh air fan 9 is put into operation, the second valve 102 on the exhaust duct is closed, air flows into the clothes treatment cavity from the external environment, after the clothes treatment cavity circulates, part of the air flows out of the third air port to the main circulation duct, and the other part of the air flows out of the second air port 22 to the exhaust pipeline, and the air flows to the main circulation duct 4 due to the closing of the second valve 102, and after the air is converged with the air on the main circulation duct 4, the air flows to the first air port 21 along the front air duct continuously, and returns to the clothes treatment barrel from the first air port 21.

Aiming at the air duct system and the corresponding drying modes, the embodiment is favorable for realizing the switching of different drying modes and the operation fresh air circulation mode or the fresh air direct-discharge mode or the condensation drying mode which can be selected according to the drying process, and can be further optimized, the drying mode can be determined according to the drying process, the drying process can be determined according to the temperature and humidity, and the drying process can be determined according to the clothes type (the control system presets the drying process corresponding to the clothes type).

In the fresh air circulation mode of the above different embodiments, in order to avoid excessive pressure in the drum, it is preferable that the laundry treatment apparatus is further provided with a pressure sensor and a ventilation apparatus, and the ventilation apparatus may be a ventilation pipe, a ventilation opening, a ventilation valve, or even a combination thereof, specifically:

when the pressure sensor monitors that the gas pressure in the clothes treatment cavity is greater than or equal to the preset pressure in the fresh air circulation mode, the clothes treatment equipment is exhausted to the external environment through a ventilation port or a ventilation pipe or a ventilation valve (which can be arranged on the ventilation port and the ventilation pipe) or an exhaust valve;

for example, as an implementation example, the laundry treating tub includes an outer tub 2 and an inner tub 3, the top of the outer tub 2 is provided with an exhaust valve, and when the pressure sensor detects that the pressure in the laundry treating chamber exceeds a preset pressure, the exhaust valve is controlled to be opened to exhaust air to the external environment of the laundry treating apparatus until the air pressure in the laundry treating chamber is less than the preset pressure, and the exhaust valve is re-closed.

As a further alternative to the above embodiment, between the a port 151 and the first tuyere 21, an auxiliary gas treatment device is provided for performing auxiliary treatment on the gas flow flowing into the first tuyere 21; the auxiliary treatment comprises humidity treatment and/or sterilization and disinfection treatment and/or peculiar smell removal treatment; the auxiliary gas treatment device comprises a steam humidifying module and/or a dehumidifying module and/or a sterilizing module and/or an odor removing module. In this embodiment, as shown in fig. 1, a dehumidifying device 8 and a steam device 11 for adjusting the humidity of fresh air entering the drum to a proper range are provided on the fresh air duct.

Example 2

The present embodiment provides, on the basis of embodiment 1 above, a further example that the first valve 101, the second valve 102, the fresh air fan, and the main circulation fan may be cooperatively controlled to selectively perform a fresh air direct-discharge mode or a fresh air circulation mode, and a condensation drying mode according to a drying process;

the drying process of this embodiment is provided with a plurality of drying stages, such as early drying stage, middle drying stage, later drying stage, specifically, according to different drying stages of the drying process, the first valve 101, the second valve 102, the fresh air fan 9, the main circulation fan 6 are cooperatively controlled, and the condensation drying mode, the fresh air circulation mode, the fresh air direct-discharge mode are selectively executed according to a preset rule and include:

in the early drying stage, the first valve 101, the second valve 102, the fresh air fan 9 and the main circulating fan 6 are cooperatively controlled to execute a condensation drying mode;

in the middle-stage drying stage, the first valve 101, the second valve 102, the fresh air fan 9 and the main circulating fan 6 are cooperatively controlled to execute a fresh air circulating mode;

in the later drying stage, the first valve 101, the second valve 102, the fresh air fan 9 and the main circulating fan 6 are cooperatively controlled to execute a fresh air direct-discharging mode.

Through setting up a plurality of stoving stages with stoving process, can be according to the rule intelligent control stoving process of predetermineeing. The specific preset rules can form a one-to-one correspondence between the drying stages and the drying modes. Of course, the preset rule may not be fixed, and different drying stages may be set according to the laundry type design or each laundry type, and then correspond to different drying rules.

From this, the clothing treatment facility of this application can be according to the different processes of stoving, and whether the optional lets the new trend of introducing directly discharge or get into back wind channel participation circulation, has solved when the exclusive use condensation wind channel and has reduced the clothing moisture content to a certain extent and not only drying efficiency reduces and later stage temperature is too high and cause the problem of damage and make the easy fold of clothes to the clothes easily, has also solved the exclusive use direct exhaust mode energy consumption too high problem.

Example 3

The difference between this embodiment and embodiment 2 is that, according to the drying process, the optional operation fresh air circulation mode or fresh air direct-discharging mode or condensation drying mode includes:

a condensation drying mode, a fresh air circulation mode and a condensation drying mode are selectively executed according to the temperature and the humidity in the clothes treatment cavity;

preferably, the condensation drying mode, the fresh air circulation mode and the condensation drying mode are selectively executed according to the temperature and the humidity in the clothes treatment cavity, and include:

when the temperature in the clothes treatment cavity is smaller than or equal to the first preset temperature and the humidity is larger than or equal to the first preset humidity, the first valve 101, the second valve 102, the fresh air fan 9 and the main circulation fan 6 are cooperatively controlled to execute a condensation drying mode;

when the temperature in the clothes treatment cavity is larger than the first preset temperature and smaller than or equal to the second preset temperature, the humidity is smaller than the first preset humidity and larger than the second preset humidity, the first valve 101, the second valve 102, the fresh air fan 9 and the main circulation fan 6 are cooperatively controlled to execute a fresh air circulation mode;

when the temperature in the clothes treatment cavity is higher than the second preset temperature and the humidity is lower than the second preset humidity, the first valve 101, the second valve 102, the fresh air fan 9 and the main circulation fan 6 are cooperatively controlled to execute the fresh air direct-discharging mode.

According to the temperature and humidity control drying process and the adaptive drying mode, the drying treatment of clothes is more efficient, more energy-saving and less damage to the clothes. Of course, no matter what rule is adopted to control the drying process, the first valve 101, the second valve 102, the fresh air fan 9 and the main circulation fan 6 are preferably cooperatively controlled, so that different working relations are reflected in different drying modes.

According to the technical scheme, the drying mode is mainly selected according to different clothes humidity in different drying stages, and the drying mode of internal circulation/external circulation/internal and external combined circulation is realized by opening and closing the valve and introducing fresh air or not, so that the drying efficiency is improved.

Claims

1. A laundry treating apparatus having a drying function, comprising:

a laundry treating tub provided with a laundry treating chamber for treating laundry and a third air port (23), a first air port (21), a second air port (22) communicating with the laundry treating chamber;

a main circulation duct (4) connected between the third air port (23) and the first air port (21) to provide an airflow path from the third air port (23) to the first air port (21);

an exhaust air duct (12), wherein one end of the exhaust air duct (12) is communicated with the second air port (22), and the other end of the exhaust air duct is communicated with the external environment of the clothes treatment equipment;

the fresh air channel (13), one end of the fresh air channel (13) is communicated with the external environment of the clothes treatment equipment, the other end of the fresh air channel is communicated with the main circulation channel (4), and a communication port communicated with the main circulation channel (4) is an A port;

the connecting air duct (14) is connected between the main circulating air duct (4) and the air exhaust air duct (12), wherein a communication port communicated with the air exhaust air duct (12) is a C port, and a communication port communicated with the main circulating air duct (4) is a B port;

on the main circulation air duct (4), an opening A of the fresh air duct (13) communicated with the main circulation air duct (4) is positioned at the downstream of an opening B of the exhaust air duct (12) communicated with the main circulation air duct (4) and is close to the first air opening (21);

the condensing equipment (8), the main circulating fan (6) and the heating equipment (7) are sequentially arranged on the main circulating air duct (4);

the first valve (101) and the fresh air fan (9) are sequentially arranged on the fresh air duct (13);

the second valve (102) is arranged on the exhaust air duct (12) and is positioned at one side of the C port far away from the second air port (22);

the clothes treatment equipment is provided with a fresh air direct-discharging mode and a fresh air circulating mode, wherein the first valve (101), the second valve (102), the fresh air fan (9) and the main circulating fan (6) can be cooperatively controlled to selectively execute the fresh air direct-discharging mode or the fresh air circulating mode according to the drying process;

the first valve (101), the second valve (102), the fresh air fan (9) and the main circulation fan (6) are in the cooperative control relationship between the fresh air direct-discharging mode and the fresh air circulation mode as follows:

in the fresh air direct-discharge mode, the fresh air fan (9) is in an open state, the first valve (101) is in an open state, and the second valve (102) is in an open state;

in the fresh air circulation mode, the fresh air fan (9) is in an open state, the first valve (101) is in an open state, and the second valve (102) is in a closed state.

2. The laundry treatment apparatus according to claim 1, wherein,

the main circulating fan (6) and the heating equipment (7) are positioned between an A port and a B port of the main circulating air duct (4);

the condensing device (8) is arranged between the port B and the third port (23).

3. The laundry treatment apparatus according to claim 2, wherein,

the main circulation air duct (4) comprises a rear air duct connected with the rear part of the clothes treatment barrel and a front air duct connected with the front part of the clothes treatment barrel, the rear air duct is connected with the third air port (23), and the front air duct is connected with the first air port (21);

the condensing equipment (8) is arranged on the rear air duct;

the heating device (7) and the main circulating fan (6) are arranged on the front air duct.

4. The laundry treatment apparatus according to claim 3, wherein,

between the port a and the first tuyere (21), an auxiliary gas treatment device is provided for performing auxiliary treatment on the gas flow flowing into the first tuyere (21);

5. The laundry treatment apparatus according to any one of claims 1-4, characterized in that,

the clothes treatment equipment is further provided with a condensation drying mode, the first valve (101) and the second valve (102) are respectively in a closed state in the condensation drying mode, and the fresh air fan (9) does not operate.

6. The laundry treatment apparatus according to claim 5, wherein,

the drying process of the clothes treatment equipment comprises a plurality of drying stages, and the first valve (101), the second valve (102), the fresh air fan (9) and the main circulating fan (6) are cooperatively controlled to execute a condensation drying mode, a fresh air circulating mode and a fresh air direct-discharging mode according to different drying stages and a preset rule.

7. The laundry treatment apparatus according to claim 6, wherein,

the plurality of drying stages comprise a front-stage drying stage, a middle-stage drying stage and a rear-stage drying stage;

the first valve (101), the second valve (102), the fresh air fan (9) and the main circulating fan (6) are cooperatively controlled to execute a condensation drying mode, a fresh air circulating mode and a fresh air direct-discharge mode according to different drying stages and a preset rule, wherein the condensation drying mode, the fresh air circulating mode and the fresh air direct-discharge mode are as follows:

in the early drying stage, the first valve (101), the second valve (102), the fresh air fan (9) and the main circulating fan (6) are cooperatively controlled to execute a condensation drying mode;

in the middle-stage drying stage, the first valve (101), the second valve (102), the fresh air fan (9) and the main circulating fan (6) are cooperatively controlled to execute a fresh air circulating mode;

in the later drying stage, the first valve (101), the second valve (102), the fresh air fan (9) and the main circulating fan (6) are cooperatively controlled to execute a fresh air direct-discharge mode.

8. The laundry treatment apparatus according to claim 6, wherein,

the clothes treatment equipment is provided with a humidity sensor and a temperature sensor and is used for detecting the temperature and the humidity in the clothes treatment cavity;

the first valve (101), the second valve (102), the fresh air fan (9) and the main circulation fan (6) are cooperatively controlled to selectively execute the condensation drying mode, the fresh air circulation mode and the fresh air direct-discharge mode according to the temperature and the humidity in the clothes treatment cavity:

9. Laundry treatment apparatus according to claim 6 or 7 or 8, characterized in that the laundry treatment apparatus is further provided with a pressure sensor, wherein the second valve (102) is controlled to be intermittently opened such that the gas pressure in the laundry treatment chamber is not greater than a preset pressure when the pressure sensor monitors that the gas pressure in the laundry treatment chamber is greater than or equal to the preset pressure in the fresh air circulation mode.

10. The laundry treatment apparatus according to claim 9, wherein the laundry treatment tub is provided with a ventilation opening communicating with the laundry treatment chamber, the ventilation opening being provided with a ventilation valve which is controlled to be opened when the pressure sensor detects that the pressure in the laundry treatment chamber exceeds a preset pressure, and the ventilation opening being vented to the external environment of the laundry treatment apparatus until the gas pressure in the laundry treatment chamber is less than the preset pressure, the ventilation valve being re-closed.