CN116163124A

CN116163124A - Clothes drying equipment

Info

Publication number: CN116163124A
Application number: CN202111405036.4A
Authority: CN
Inventors: 梁章; 牟秋启; 高弘锡
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2023-05-26

Abstract

The embodiment of the application provides clothes drying equipment, which comprises a clothes drying cylinder, a dehumidifying air channel, a drying air channel, a heating device, a condensing device, a fresh air inlet communicated with the drying air channel, a fresh air outlet communicated with the dehumidifying air channel and a fresh air switching device for switching an air flow path; the airflow path comprises a first airflow path and a second airflow path, and the first airflow path is: the fresh air inlet and the fresh air outlet are closed, and the air flow circulates in the drying air duct, the clothes drying cylinder and the dehumidifying air duct; the second airflow path is: the dehumidifying air duct and the drying air duct are mutually blocked, the drying air duct is used for air intake from the fresh air inlet, and the air flow dehumidified by the condensing device is discharged from the fresh air outlet. According to the clothes drying equipment, the first airflow path or the second airflow path is flexibly switched through the fresh air switching device, so that the clothes drying equipment can selectively operate in an outer circulation mode or an inner circulation mode, and the influence on indoor environment can be reduced while the clothes drying efficiency is improved.

Description

Clothes drying equipment

Technical Field

The application relates to the technical field of clothes care, in particular to clothes drying equipment.

Background

In the related art, the clothes drying equipment adopts an internal circulation mode to dry clothes, namely, the drying airflow circulates between a clothes drying cylinder and a circulation air duct, the airflow from the clothes drying cylinder is wet and hot airflow, the circulation air duct dehumidifies the wet and hot airflow, and then the dehumidified airflow is heated, and the heated airflow enters the clothes drying cylinder again. The clothes drying mode has low clothes drying efficiency and long clothes drying time.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a clothes drying apparatus that improves clothes drying efficiency.

The embodiment of the application provides a clothes drying device, including:

a clothes drying cylinder;

a dehumidifying air duct and a drying air duct positioned at the downstream of the dehumidifying air duct along the airflow flowing direction;

the heating device is arranged in the drying air duct;

the condensing device is arranged in the dehumidifying air duct;

the fresh air inlet is communicated with the drying air duct;

the fresh air outlet is communicated with the dehumidifying air channel;

the fresh air switching device is used for switching the air flow path; the airflow path includes:

a first airflow path: the fresh air inlet and the fresh air outlet are closed, and air flow circulates in the drying air duct, the clothes drying cylinder and the dehumidifying air duct;

second airflow path: the dehumidifying air channel and the drying air channel are mutually blocked, the drying air channel is used for air intake from the fresh air inlet, and the air flow dehumidified by the condensing device is discharged from the fresh air outlet.

In some embodiments, the clothes drying apparatus includes a base device having a receiving chamber, at least a portion of the fresh air switching device is disposed within the receiving chamber and separates the receiving chamber into a first sub-chamber and a second sub-chamber, the heating device is disposed within the first sub-chamber, and the condensing device is disposed within the second sub-chamber.

In some embodiments, the base device comprises a base provided with a recessed area and a cover covering a top side of the recessed area to define the accommodation chamber; the fresh air inlet is arranged on the cover body.

In some embodiments, the fresh air outlet is disposed on the cover, and the fresh air inlet and the fresh air outlet are disposed on left and right sides of the cover.

In some embodiments, the fresh air outlet is provided at the bottom of the base from which wind is discharged.

In some embodiments, the fresh air switching device includes a damper rotatably disposed between the heating device and the condensing device, and a power mechanism driving the damper to swing to selectively turn on or off the first and second subchambers.

In some embodiments, the axis of rotation of the damper is in a vertical direction, and the power mechanism is disposed on the top side of the cover.

In some embodiments, the cover comprises a cover plate and a box, the cover plate is provided with a avoidance groove, and the box is arranged at the avoidance groove; the box body is provided with a first space, the bottom wall of the first space is provided with a first vent hole, and the first space is communicated with the fresh air inlet and the first vent hole;

the fresh air switching device comprises a first shielding plate for shielding the first vent hole, the first shielding plate is connected with the air door, and the power mechanism drives the air door and the first shielding plate to rotate.

In some embodiments, a second space isolated from the first space is arranged in the box body, and a second ventilation hole is arranged at the bottom wall of the second space and is communicated with the fresh air outlet and the second ventilation hole;

the fresh air switching device comprises a second shielding plate for shielding the second ventilation hole, the second shielding plate is connected with the air door, and the power mechanism drives the air door and the second shielding plate to rotate.

In some embodiments, one of the fresh air inlet and the fresh air outlet is disposed on a left side wall of the case, and the other is disposed on a right side wall of the case.

In some embodiments, the box body is provided with a shaft hole penetrating the box body along the up-down direction, and the power mechanism is arranged on the top side of the box body; the top of air door is formed with the pivot, the pivot wears to locate in the shaft hole, power unit drives the pivot rotates.

In some embodiments, the number of the air doors is a plurality, and the plurality of the air doors are arranged along the left-right direction of the clothes drying equipment; the power mechanism comprises a motor, a transmission rod and rocker arms, one end of each rocker arm is movably connected with the transmission rod, the other end of each rocker arm is connected with the rotating shaft, and the transmission rod is driven by the motor to axially move and drive the rocker arms to swing around the rotating axis of the air door.

In some embodiments, the clothes drying equipment comprises a control device and a humidity detection device, wherein the humidity detection device is at least used for detecting the air flow humidity value on the air flow path, and the control device is used for acquiring the ambient environment humidity value and controlling the fresh air switching device to switch the air flow path according to the ambient environment humidity value and the difference value of the air flow humidity value.

According to the clothes drying equipment, at the beginning stage of a clothes drying program, the fresh air switching device can be switched to the second airflow path, the clothes drying equipment runs in a circulating mode outside, fresh air in the environment enters the drying air channel through the fresh air inlet and is heated by the heating device to form hot air, the humidity of the hot air is lower, the heat exchange quality-changing efficiency can be accelerated in the process that the hot air flows through the clothes drying barrel, and the clothes drying efficiency is improved. The wet and hot air flow flowing through the clothes drying cylinder is condensed and dehumidified by the condensing device, and then is discharged from the fresh air outlet and enters the indoor environment. That is, the air flow discharged into the surrounding environment is condensed and dehumidified by the condensing device, and thus, the temperature and humidity in the room are not significantly affected, and the influence on the indoor environment is reduced.

When the humidity of the clothes drying air flow is not high, the clothes drying equipment can be switched to the first air flow path through the fresh air switching device and operates in an internal circulation mode. Therefore, on one hand, in the internal circulation process, the air flow can reduce heat loss, reduce energy consumption and improve efficiency, and on the other hand, the air flow can also reduce the influence on the indoor environment.

According to the clothes drying equipment, the first airflow path or the second airflow path is flexibly switched through the fresh air switching device, so that the clothes drying equipment can selectively operate in an outer circulation mode or an inner circulation mode, and the influence on indoor environment can be reduced while the clothes drying efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a clothes drying apparatus according to an embodiment of the present application, in which a left side plate of a cabinet is omitted;

FIG. 2 is a schematic view of the structure of FIG. 1 with parts of the base unit omitted and with the heating and condensing units omitted;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is a schematic diagram of the cooperation of the fresh air switching device, the cover and the chassis according to an embodiment of the present disclosure, wherein the fresh air switching device switches the airflow path to the first airflow path;

FIG. 5 is a schematic view of the structure of FIG. 4 in another state, wherein the fresh air switching device switches the air flow path to a second air flow path;

FIG. 6 is a schematic view of the structure of FIG. 4 with the cover omitted;

FIG. 7 is a schematic view of the structure of FIG. 6 in another state;

FIG. 8 is a schematic structural diagram of a fresh air switching device according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural view of a case according to an embodiment of the present disclosure;

FIG. 10 is a schematic view of the structure of FIG. 9 from another perspective;

fig. 11 is a schematic view of the structure of fig. 9 with the top wall omitted.

Description of the reference numerals

A clothes drying cylinder 1; a case 2;

a condensing device 3; a heating device 4;

fresh air switching device 5; a motor 51; a transmission assembly 52; a transmission rod 521; a protrusion 5211; a rocker arm 522; chute 522a; a damper 53; a rotation shaft 531; a first shielding plate 54; a second shielding plate 55;

a base means 6; a housing chamber 6a; a first sub-chamber 6a'; a second sub-chamber 6a'; a base 61; a cover 62; a cover plate 621; a case 622; a first space 622a; a first vent 622e; fresh air inlet 622c; a second space 622b; a second vent hole 622f; a fresh air outlet 622d; a diaphragm 6221; shaft hole 6221a; a chassis 63; a mounting bracket 64;

Detailed Description

Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The embodiment of the application provides clothes drying equipment, please refer to fig. 1, 2 and 3, which comprises a box body 2, a clothes drying cylinder 1, a dehumidifying air channel, a drying air channel, a heating device 4, a condensing device 3 and a fan.

The clothes drying cylinder 1 is arranged in the box body 2, the space in the clothes drying cylinder 1 is a clothes drying cavity, and clothes are placed in the clothes drying cavity. The case 2 serves as an exterior member of the clothes drying apparatus.

The drying air duct is positioned at the downstream of the dehumidifying air duct along the airflow flowing direction. That is, the air flows through the dehumidifying air duct and then through the drying air duct.

The heating device 4 is arranged in the drying air duct and is used for heating the air flow.

The condensing device 3 is arranged in the dehumidifying air channel and is used for condensing and dehumidifying the air flow.

Referring to fig. 3, in fig. 3, a dotted line a indicates that an air flow flows in the drying duct, and a dotted line B indicates that an air flow flows in the dehumidifying duct.

The fan may be disposed in a drying duct or a dehumidifying duct, for example.

Referring to fig. 1 and 2, and fig. 4 and 5, the clothes drying apparatus according to the embodiment of the present application further includes a fresh air inlet 622c (refer to fig. 10), a fresh air outlet 622d, and a fresh air switching device 5.

The fresh air inlet 622c is communicated with the drying air duct; the fresh air outlet 622d communicates with the dehumidified air duct.

The fresh air switching device 5 is used for switching the air flow path.

Wherein the airflow path includes a first airflow path and a second airflow path.

A first airflow path: referring to fig. 1, 2, 3, 4 and 6, the fresh air inlet 622c and the fresh air outlet 622d are closed, and the air flow circulates in the drying duct, the clothes drying drum 1 and the dehumidifying duct. The dashed lines and arrows in fig. 1 illustrate the internal circulation path of the drying air flow. That is, the clothes drying apparatus adopts the internal circulation mode when the air flow flows along the first air flow path.

Second airflow path: referring to fig. 5 and 7, the dehumidifying air duct and the drying air duct are blocked from each other, i.e. the air flow of the dehumidifying air duct cannot enter the drying air duct, the drying air duct enters the fresh air inlet 622c, and the air flow dehumidified by the condensing unit 3 is discharged from the fresh air outlet 622d. Specifically, the fresh air flows through the fresh air inlet 622c, the heating device 4, the clothes drying drum 1, the condensing device 3, and the fresh air outlet 622d in this order. The clothes drying apparatus adopts an outer circulation mode when the air flow flows along the second air flow path.

In the related art, the clothes drying cylinder only has an internal circulation mode, and air flow always circulates in the drying air duct, the clothes drying cylinder and the dehumidifying air duct. At the beginning stage of the clothes drying procedure, the water content of clothes is higher, more water vapor is contained in air flow, more water vapor can not be condensed and separated out in time when the damp-heat air flow flows through the condensing device, so that the humidity of the air flow entering the clothes drying cylinder is higher, the water on the clothes is not easy to evaporate, the clothes drying speed is slower, and the clothes drying efficiency is not high.

In this embodiment, when the humidity of the air flow is high, for example, at the beginning of the clothes drying procedure, the fresh air switching device 5 may switch to the second air flow path, and the clothes drying apparatus may operate in the external circulation mode. Fresh air in the environment enters the drying air channel through the fresh air inlet 622c and is heated by the heating device 4 to form hot air flow, the humidity of the hot air flow is low, the heat exchange quality-changing efficiency can be quickened in the process that the hot air flow flows through the clothes drying cylinder 1, and the clothes drying efficiency is improved. The hot and humid air flowing through the laundry dryer drum 1 is condensed and dehumidified by the condensing device 3, and then discharged from the fresh air outlet 622d, and enters the indoor environment. That is, the air flow discharged into the surrounding environment is condensed and dehumidified by the condensing device 3, and thus, the temperature and humidity in the room are not significantly affected, and the influence on the indoor environment is reduced.

Or when the peculiar smell needs to be removed, the clothes drying equipment can also be operated in an external circulation mode, and the peculiar smell in the clothes drying cylinder 1 can be removed rapidly through fresh air.

When the humidity of the clothes drying air flow is not large, the clothes drying equipment can be switched to the first air flow path through the fresh air switching device 5, and the clothes drying equipment operates in an internal circulation mode. Therefore, on one hand, in the internal circulation process, the air flow can reduce heat loss, reduce energy consumption and improve efficiency, and on the other hand, the air flow can also reduce the influence on the indoor environment.

The filter screen is arranged in the dehumidifying air channel, and the air flow in the dehumidifying air channel is filtered by the filter screen before flowing through the dehumidifying device, so that the risk that the condensation device 3 is blocked by the filth is reduced. The clothes drying equipment of the embodiment of the application also filters the air flow discharged into the room, so that the possibility of polluting the indoor air by the air flow is reduced.

According to the clothes drying equipment, the first airflow path or the second airflow path is flexibly switched through the fresh air switching device 5, so that the clothes drying equipment can selectively operate in an outer circulation mode or an inner circulation mode, and the influence on indoor environment can be reduced while the clothes drying efficiency is improved.

The laundry drying appliance comprises, for example, a control device and a humidity detection device for detecting at least an air flow humidity value on the air flow path, for example, on the first air flow path or on the second air flow path.

The control device is used for acquiring the ambient humidity value and controlling the fresh air switching device 5 to switch the air flow path according to the ambient humidity value and the air flow humidity value.

In the embodiment, the clothes drying equipment can automatically switch the air flow path according to the ambient environment humidity value and the air flow humidity value, so that the clothes drying equipment has a good humidity self-adaptive effect and is more intelligent.

The humidity detection device may be an independent temperature sensor, or may be an integrated temperature and humidity sensor with integrated temperature and humidity detection functions, which is not limited herein.

The manner in which the control device controls the fresh air switching device 5 to switch the air flow path according to the difference is not limited.

For example, when the air flow humidity value is greater than the ambient humidity value or a certain numerical proportion of the ambient humidity value, the control device controls the fresh air switching device 5 to switch to the second air flow path. Otherwise, the control device controls the fresh air switching device 5 to switch to the first air flow path. For example, the humidity value detected by the humidity detecting device is x1, the ambient humidity value is x2, and in some embodiments, the control device may set: when x1> x2, or x1> x2 (1+y%),. Wherein 0< y, the control device controls the fresh air switching device 5 to switch to the second airflow path.

The manner in which the control device obtains the environmental humidity value is not limited, and may be obtained, for example, from a humidity sensor for detecting the environmental humidity value, or may obtain the current environmental humidity value through the internet.

The setting position of the humidity detection device is not limited. For example, the humidity detection device is disposed in the drying air duct or in the dehumidifying air duct.

Illustratively, the humidity detecting device is disposed at an air outlet side of the condensing device 3 to detect humidity of an air flow flowing through the condensing device 3. It will be appreciated that the air flow on the air outlet side of the condensing device 3 is selectively discharged from the fresh air outlet 622d into the surrounding environment, or enters the clothes drying drum 1 through the drying air duct, and the humidity of the air flow is basically unchanged during the flowing process of the drying air duct, so that the humidity detection can be performed on the air flow on the air outlet side of the condensing device 3, and the detection can be more accurate.

The specific type of heating means 4 is not limited and may be a resistance wire. The specific type of the condensing unit 3 is not limited and may be a water cooling unit.

The heating device 4 is illustratively a condenser, the condensing device 3 is an evaporator, and the condenser and the evaporator are components of a heat pump system. That is, in this embodiment, the laundry drying apparatus is a heat pump laundry drying apparatus.

Illustratively, the heating device 4 and the condensing device 3 are arranged in the front-rear direction of the clothes drying apparatus, the heating device 4 being located at the rear side of the condensing device 3.

Referring to fig. 2 and 3, the clothes drying apparatus includes a base unit 6, the base unit 6 having a receiving chamber 6a, and a condensing unit 3 and a heating unit 4 each disposed in the receiving chamber 6a. The air flow in the first air flow path flows through the accommodating chamber 6a.

With continued reference to fig. 2 and 3, at least a portion of the fresh air switching device 5 is disposed in the accommodating chamber 6a, and separates the accommodating chamber 6a into a first sub-chamber 6a 'and a second sub-chamber 6a ", the heating device 4 is disposed in the first sub-chamber 6a', and the condensing device 3 is disposed in the second sub-chamber 6 a", that is, the fresh air switching device 5 is disposed between the heating device 4 and the condensing device 3.

The fresh air inlet 622c is used for introducing fresh air into the space between the heating device 4 and the fresh air switching device 5 in the first sub-chamber 6 a'. The fresh air outlet 622d serves to conduct away the air flow of the space between the condensation device 3 and the fresh air switching device 5 from the second sub-chamber 6a ".

The fresh air switching device 5 is used for blocking or conducting an air flow passage between the heating device 4 and the condensing device 3.

In this embodiment, the drying air duct and the condensing air duct of the existing clothes drying equipment do not need to be changed greatly, and only the fresh air switching device 5 is required to be additionally arranged between the condensing device 3 and the heating device 4, so that the clothes drying equipment can be updated conveniently with low cost on the basis of the existing clothes drying equipment.

For example, referring to fig. 2, the base device 6 includes a base 61 and a cover 62, the base 61 is provided with a recess area, a top side of the recess area is open, and the cover 62 is covered on the top side of the recess area to define a containing chamber 6a.

In the assembly process, the condensing device 3 and the heating device 4 are placed in the concave area, and then the cover body 62 is covered.

Referring to fig. 4, 5, 6 and 7, for example, the base unit 6 includes a chassis 63 disposed in the accommodating chamber 6a, and the chassis 63 is placed on the bottom surface of the recess. The heating means 4 and the condensing means 3 are both placed on a chassis 63.

For example, referring to fig. 10 and 11, the fresh air inlet 622c is disposed on the cover 62. The space inside the case 2 is not a sealed space, and there is air flow exchange between the air outside the case 2 and the air inside the case 2.

In some embodiments, air in the case 2 enters the drying duct from the fresh air inlet 622c. The air outside the case 2 is supplied into the case 2, that is, the drying duct introduces fresh air from inside the case 2. In other embodiments, a fresh air hole is provided in the left support plate or the right support plate of the case 2, and air outside the case 2 flows to the fresh air inlet 622c through the fresh air hole, that is, the drying duct directly introduces fresh air from outside the case 2.

The position of the fresh air outlet 622d is not limited as long as the air flow can be discharged.

For example, in some embodiments, referring to fig. 9, 10 and 11, the fresh air outlet 622d is disposed on the cover 62. That is, the cover 62 is provided with both the fresh air outlet 622d and the fresh air inlet 622c. Thus, the base of the existing clothes drying equipment can be used without opening holes in other positions of the base.

For example, referring to fig. 11, the fresh air inlet 622c and the fresh air outlet 622d are located on the left and right sides of the cover 62. For example, the fresh air inlet 622c is located on the left side of the cover 62, and the fresh air outlet 622d is located on the right side of the cover 62; alternatively, the fresh air inlet 622c is located on the right side of the cover 62 and the fresh air outlet 622d is located on the left side of the cover 62. In this way, the air flow interference between the fresh air inlet 622c and the fresh air outlet 622d can be reduced, and the probability of the air flow from the fresh air outlet 622d re-entering the fresh air inlet 622c can be reduced.

In other embodiments, the fresh air outlet 622d is disposed at the bottom of the base 61, and the dehumidified air is discharged from the bottom of the base device 6 when the fresh air outlet 622d is opened, so that the air can be directly discharged out of the clothes drying apparatus through the base device 6; in addition, the fresh air outlet 622d is not exposed to the appearance surface of the clothes drying apparatus, and does not affect the appearance of the clothes drying apparatus.

The specific structure of the fresh air switching device 5 is not limited.

For example, referring to fig. 8, the fresh air switching device 5 includes a damper 53 and a power mechanism, wherein the damper 53 is rotatably disposed between the heating device 4 and the condensing device 3, and the power mechanism is used as a power source for rotation of the damper 53. The power mechanism drives the damper 53 to swing to selectively turn on or off the first sub-chamber 6a' and the second sub-chamber 6a ". For example, referring to fig. 7, the state shown in fig. 7 is a state in which the power mechanism drives the damper 53 to swing to block the first sub-chamber 6a' and the second sub-chamber 6a ", and at this time, the drying air duct and the dehumidifying air duct are blocked from each other. Referring to fig. 6, the state shown in fig. 6 is a state in which the power mechanism drives the damper 53 to swing to turn on the first sub-chamber 6a' and the second sub-chamber 6a ", and at this time, the drying air duct and the dehumidifying air duct are turned on each other.

The shape of the damper 53 is not limited. For example, the damper 53 has a substantially rectangular plate shape.

The extending direction of the rotational axis of the damper 53 is not limited, and may be in the front-rear direction, the left-right direction, the up-down direction, or the like.

For example, referring to fig. 4, 5, 6, 7 and 8, the rotation axis of the damper 53 is in the vertical direction, and the power mechanism is disposed at the top side of the cover 62. Thus, the damper 53 needs to occupy a small space in the front-rear direction. In addition, the top side of the cover 62 has a relatively large installation space, with sufficient space to install the power mechanism.

The number of the damper 53 is not limited, and may be one or a plurality. Wherein a plurality refers to not less than two. The plurality of dampers 53 are arranged in the left-right direction of the laundry drying apparatus.

In the present embodiment, the number of dampers 53 is described as a plurality of examples. The plurality of dampers 53 are arranged side by side in the left-right direction of the laundry treating apparatus. In this way, the size of the individual damper 53 can be reduced, reducing the space required for rotation of the individual damper 53.

For example, referring to fig. 4 and 5, the cover 62 includes a cover 621 and a case 622, the cover 621 is provided with a avoiding groove, and the case 622 is disposed at the avoiding groove. In a top view of the clothes drying apparatus, the box 622 is located between the heating means 4 and the condensing means 3.

Referring to fig. 11, a first space 622a is provided in the case 622, a first ventilation hole 622e is provided in a bottom wall of the first space 622a, and the first space 622a communicates with the fresh air inlet 622c and the first ventilation hole 622e. In a top view of the clothes drying apparatus, the first ventilation hole 622e is located between the heating device 4 and the damper.

For example, referring to fig. 6, 7 and 8, the fresh air switching device 5 includes a first shielding plate 54 for shielding a first vent 622e, the first shielding plate 54 is connected to the damper 53, and the power mechanism drives the damper 53 and the first shielding plate 54 to rotate. That is, the damper 53 and the first shutter 54 are rotated simultaneously, for example, rotated simultaneously in the forward direction or rotated simultaneously in the reverse direction, so that the control can be simplified, and the synchronization of both can be ensured, thereby improving the reliability.

Illustratively, the first shielding plate 54 is positioned below the case 622, that is, the first shielding plate 54 is not disposed in the first space 622a but is exposed to the drying duct. The first shielding plate 54 is substantially abutted against the bottom wall of the first space 622 a. When the clothes drying apparatus adopts the internal circulation, referring to fig. 4 and 6, the first shielding plate 54 is rotated to a position to block the first ventilation hole 622e, and the damper 53 is rotated to a position to conduct the drying air duct and the dehumidifying air duct. When the clothes drying apparatus adopts the external circulation, referring to fig. 5 and 7, the first shielding plate 54 rotates to a position avoiding the first ventilation hole 622e, the air door 53 rotates to a position blocking the air flow, and the fresh air sequentially flows through the fresh air inlet 622c, the first space 622a and the first ventilation hole 622e and then enters the drying air duct.

For example, referring to fig. 11, a second space 622b isolated from the first space 622a is provided in the case 622. That is, the first space 622a and the second space 622b have no air flow exchange. For example, a partition 6221 is provided in the case 622, and the partition 6221 divides the space in the case 622 into a first space 622a and a second space 622b.

The bottom wall of the second space 622b is provided with a second ventilation hole 622f, and the second space 622b communicates with the fresh air outlet 622d and the second ventilation hole 622f. In a top view of the clothes drying apparatus, the second ventilation aperture 622f is located between the condensing means 3 and the damper. When the clothes drying apparatus is operated in the external circulation mode, the low-temperature drying air flow condensed and dehumidified by the condensing device 3 enters the second space 622b from the second ventilation hole 622f and is discharged from the fresh air outlet 622d.

In this embodiment, the fresh air outlet 622d and the fresh air inlet 622c are simultaneously provided on the case 622, so that the integration level is high. One of the fresh air inlet 622c and the fresh air outlet 622d is disposed on the left side wall of the case 622, and the other is disposed on the right side wall of the case 622. On the one hand, the fresh air inlet 622c and the fresh air outlet 622d are separated by a relatively long distance, so that the air flow interference between the fresh air inlet 622c and the fresh air outlet 622d is reduced, and on the other hand, holes are formed in the left side plate and/or the right side plate of the box body 2 conveniently so as to adapt to air flow exchange between the fresh air inlet 622c and/or the fresh air outlet 622d and the external environment of the box body 2.

Referring to fig. 6, 7 and 8, the fresh air switching device 5 includes a second shielding plate 55 for shielding a second ventilation hole 622f, the second shielding plate 55 is connected to the air door 53, and the power mechanism drives the air door 53 and the second shielding plate 55 to rotate. That is, the damper 53 and the second shutter 55 are rotated simultaneously, for example, rotated simultaneously in the forward direction or rotated simultaneously in the reverse direction, so that the control can be simplified, and the synchronization of both can be ensured, thereby improving the reliability.

Illustratively, the second shielding plate 55 is located below the case 622, that is, the second shielding plate 55 is not disposed in the second space 622b, but is exposed to the dehumidified dry duct. The second shielding plate 55 is substantially abutted against the bottom wall of the second space 622b. When the clothes drying apparatus adopts the internal circulation, referring to fig. 4 and 6, the second shielding plate 55 is rotated to a position to block the second ventilation hole 622f, and the damper 53 is rotated to a position to conduct the drying air duct and the dehumidifying air duct. When the clothes drying apparatus adopts the external circulation, referring to fig. 5 and 7, the second shielding plate 55 rotates to a position avoiding the second ventilation hole 622f, the air door 53 rotates to a position blocking the air flow, and the air flow flowing through the condensing unit 3 sequentially flows through the second ventilation hole 622f and the second space 622b and is discharged from the fresh air outlet 622d.

For example, referring to fig. 11, the case 622 is provided with a shaft hole 6221a penetrating the case 622 in the up-down direction, for example, the shaft hole 6221a is provided on the above-mentioned partition plate 6221, and the shaft hole 6221a, the first space 622a, and the second space 622b are isolated from each other.

The power mechanism is arranged on the top side of the box 622; referring to fig. 6, 7 and 8, a rotary shaft 531 is formed at the top end of the damper 53, the rotary shaft 531 is disposed in the shaft hole 6221a in a penetrating manner, and the power mechanism drives the rotary shaft 531 to rotate.

Illustratively, the first shielding plate 54 and the second shielding plate 55 are both connected to the rotating shaft 531, and the rotating shaft 531 drives the damper 53, the first shielding plate 54 and the second shielding plate 55 to rotate synchronously.

For example, referring to fig. 5, 6 and 7 for supporting the damper 53, the base unit includes a mounting bracket 64, the lower end of the damper 53 is rotatably supported on the mounting bracket 64, and the mounting bracket 64 defines a mounting space required for each damper 53.

In some embodiments, the mounting bracket 64 and the chassis 63 are fixedly coupled together to improve the structural strength of the two.

The specific structure of the power mechanism is not limited. The power mechanism includes at least a motor 51.

In some embodiments, the motor 51 may directly drive the damper 53 to rotate.

In other embodiments, the motor 51 indirectly drives the damper 53 through the transmission assembly 52.

For example, referring to fig. 6, 7 and 8, the power mechanism further includes a transmission rod 521 and rocker arms 522, wherein the transmission rod 521 is eccentrically disposed with respect to the axis of the rotation shaft 531, one end of each rocker arm 522 is movably connected to the transmission rod 521, and the other end is connected to the rotation shaft 531, and the transmission rod 521 is driven by the motor 51 to move axially and drive the rocker arms 522 to swing around the rotation axis of the damper 53. In this embodiment, each rocker arm 522 and the transmission rod 521 form the transmission assembly 52.

In this embodiment, the transmission rod 521 and the rocker arm 522 cooperate to synchronously drive all the air doors 53 to synchronously rotate, so that the structure is simple and reliable, and the required installation space is small.

In addition, the same motor 51 can synchronously control the on-off control of the fresh air inlet 622c, the fresh air outlet 622d, the air flow passage between the condensing device 3 and the heating device 4, thereby ensuring the synchronism of the three and improving the reliability.

As shown in fig. 8, for example, the rocker 522 is provided with a chute 522a, the transmission rod 521 is provided with a protrusion 5211, the protrusion 5211 is inserted into the chute 522a, and when the motor 51 drives the transmission rod 521 to move linearly, the protrusion 5211 slides in the chute 522a and drives the rocker 522 to rotate by a certain angle.

In the description of the present application, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described herein, as well as the features of the various embodiments or examples, may be combined by those skilled in the art without contradiction.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A clothes drying apparatus, comprising:

a clothes drying cylinder (1);

the heating device (4) is arranged in the drying air duct;

the condensing device (3) is arranged in the dehumidification air duct;

a fresh air inlet (622 c) communicated with the drying air duct;

a fresh air outlet (622 d) communicated with the dehumidifying air channel;

the fresh air switching device (5) is used for switching the air flow path; the airflow path includes:

a first airflow path: the fresh air inlet (622 c) and the fresh air outlet (622 d) are closed, and air flow circulates in the drying air duct, the clothes drying cylinder (1) and the dehumidifying air duct;

second airflow path: the dehumidifying air channel and the drying air channel are mutually blocked, the drying air channel is used for air intake from the fresh air inlet (622 c), and the air flow dehumidified by the condensing device (3) is discharged from the fresh air outlet (622 d).

2. Laundry drying apparatus according to claim 1, characterized in that the laundry drying apparatus comprises a base device (6), the base device (6) having a receiving chamber (6 a), at least a portion of the fresh air switching means (5) being arranged in the receiving chamber (6 a) and separating the receiving chamber (6 a) into a first sub-chamber (6 a ') and a second sub-chamber (6 a "), the heating means (4) being arranged in the first sub-chamber (6 a'), the condensing means (3) being arranged in the second sub-chamber (6 a").

3. Laundry drying apparatus according to claim 2, characterized in that said base means (6) comprise a base (61) and a cover (62), said base (61) being provided with a recessed area, said cover (62) being provided to cover the top side of said recessed area to define said housing chamber (6 a); the fresh air inlet (622 c) is arranged on the cover body (62).

4. A clothes drying apparatus according to claim 3, wherein the fresh air outlet (622 d) is provided on the cover (62), and the fresh air inlet (622 c) and the fresh air outlet (622 d) are located on the left and right sides of the cover (62).

5. A clothes drying apparatus according to claim 3, wherein the fresh air outlet (622 d) is provided in the base (61) bottom and the wind is discharged from the base means (6) bottom.

6. A clothes drying apparatus according to claim 3, wherein the fresh air switching device (5) comprises a damper (53) and a power mechanism, the damper (53) is rotatably arranged between the heating device (4) and the condensing device (3), and the power mechanism drives the damper (53) to swing so as to selectively conduct or block the first sub-chamber (6 a') and the second sub-chamber (6 a ").

7. Laundry drying apparatus according to claim 6, characterized in that the axis of rotation of the damper (53) is in a vertical direction, the power mechanism being provided at the top side of the cover (62).

8. A clothes drying apparatus according to claim 3, wherein the cover (62) comprises a cover plate (621) and a box (622), the cover plate (621) is provided with an avoidance groove, and the box (622) is arranged at the avoidance groove; the box body (622) is provided with a first space (622 a), a first ventilation hole (622 e) is formed in the bottom wall of the first space (622 a), and the first space (622 a) is communicated with the fresh air inlet (622 c) and the first ventilation hole (622 e);

the fresh air switching device (5) comprises a first shielding plate (54) for shielding the first ventilation hole (622 e), the first shielding plate (54) is connected with the air door (53), and the power mechanism drives the air door (53) and the first shielding plate (54) to rotate.

9. The clothes drying apparatus according to claim 8, wherein a second space (622 b) isolated from the first space (622 a) is provided in the box (622), a bottom wall of the second space (622 b) is provided with a second ventilation hole (622 f), and the second space (622 b) communicates with the fresh air outlet (622 d) and the second ventilation hole (622 f);

the fresh air switching device (5) comprises a second shielding plate (55) for shielding the second ventilation holes (622 f), the second shielding plate (55) is connected with the air door (53), and the power mechanism drives the air door (53) and the second shielding plate (55) to rotate.

10. The clothes drying apparatus according to claim 8, wherein one of the fresh air inlet (622 c) and the fresh air outlet (622 d) is provided at a left side wall of the case (622), and the other is provided at a right side wall of the case (622).

11. Laundry drying apparatus according to claim 8, characterized in that the box (622) is provided with a shaft hole (6221 a) penetrating the box (622) in the up-down direction, the power mechanism being provided at the top side of the box (622); a rotating shaft (531) is formed at the top end of the air door (53), the rotating shaft (531) penetrates through the shaft hole (6221 a), and the power mechanism drives the rotating shaft (531) to rotate.

12. Laundry drying apparatus according to claim 8, characterized in that the number of said dampers (53) is plural, a plurality of said dampers (53) being arranged in the left-right direction of said laundry drying apparatus; the power mechanism comprises a motor (51), a transmission rod (521) and rocker arms (522), one end of each rocker arm (522) is movably connected with the transmission rod (521), the other end of each rocker arm is connected with the rotating shaft (531), the transmission rod (521) is driven by the motor (51) to axially move, and the rocker arms (522) are driven to swing around the rotating axis of the air door (53).

13. Laundry drying apparatus according to claim 1, characterized in that the laundry drying apparatus comprises control means and humidity detection means, the humidity detection means being at least for detecting an air flow humidity value on the air flow path, the control means being for obtaining an ambient humidity value and controlling the fresh air switching means (5) to switch the air flow path in dependence of the ambient humidity value and the difference of the air flow humidity values.