CN218492082U

CN218492082U - Clothes drying equipment

Info

Publication number: CN218492082U
Application number: CN202222122107.6U
Authority: CN
Inventors: 王玉洁; 赵志龙; 范先锋; 王来升
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2023-02-17
Anticipated expiration: 2032-08-11

Abstract

The utility model relates to a clothing treatment facility technical field specifically provides a clothes drying equipment, aims at solving current clothes drying equipment and directly holds the hot-air discharge to the external world in the component with the clothing, can not be unfavorable for the problem of energy saving at the heat of stoving in-process make full use of hot-air. The utility model discloses a clothes drying equipment includes that box and the clothing of setting in the box hold component, air inlet duct, exhaust duct, fan and heating device, and air inlet duct, clothing hold component and exhaust duct and communicate in proper order, and the fan setting is in air inlet duct and/or exhaust duct, and heating device sets up in the air inlet duct, and clothes drying equipment still includes the return air duct, and the first end in return air duct communicates to the air inlet duct, and the second end in return air duct communicates to the exhaust duct. The utility model discloses can hold the exhaust hot-air backward flow to the clothing from the clothing and hold the component in, be used for the stoving clothing once more, realize thermal recycling in the exhaust hot-air.

Description

Clothes drying equipment

Technical Field

The utility model relates to a clothing treatment facility technical field specifically provides a clothing drying equipment.

Background

The weather in some areas is humid, the washed clothes are not easy to dry, and the wet clothes are easy to breed bacteria and even mildew after being placed everywhere for a long time. In order to rapidly dry the laundry, technicians have developed laundry drying devices for use in drying the laundry. The direct-exhausting type clothes dryer is a common clothes drying device and comprises a box body, a clothes drying drum, an air inlet duct, an air outlet duct and a heater, wherein the clothes drying drum, the air inlet duct, the air outlet duct and the heater are arranged in the box body, the air inlet duct, the clothes drying drum and the air outlet duct are sequentially communicated, the heater is arranged in the air inlet duct, when clothes are dried, outside air enters through the air inlet duct and is heated by the heater to become hot air, the hot air enters the clothes drying drum to dry the clothes, and then the air is discharged from the inside of the clothes drying drum to the outside through the air outlet duct. Because the hot air in the clothes drying cylinder is directly exhausted to the outside, the heat of the hot air cannot be fully utilized in the drying process, and the energy is not saved.

Therefore, there is a need in the art for a new clothes drying apparatus to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem, promptly, solve the direct hot-air outgoing to the external world that holds the component with the clothing of current dry clothing equipment, can not be unfavorable for the problem of energy saving at the heat of stoving in-process make full use of hot-air.

The utility model provides a clothes drying equipment, clothes drying equipment includes the box and sets up clothing in the box holds component, air inlet duct, exhaust duct, fan and heating device, the air inlet duct the clothing holds the component with the exhaust duct communicates in proper order, the fan sets up the air inlet duct and/or in the exhaust duct, heating device sets up in the air inlet duct, clothes drying equipment still includes the return air duct, the first end intercommunication in return air duct to the air inlet duct, the second end intercommunication in return air duct to the exhaust duct.

Under the condition of adopting the technical scheme, the hot air exhausted from the clothes accommodating component can flow back to the clothes accommodating component through the air return channel, and is used for drying the clothes again, so that the heat in the exhausted hot air is recycled, the energy (such as electric energy) required to be consumed by the heating device is reduced, and the energy conservation and emission reduction are facilitated.

In the preferable technical scheme of the clothes drying equipment, the clothes drying equipment further comprises a heat exchanger, the heat exchanger comprises a first heat exchange channel and a second heat exchange channel which are arranged close to each other, the first heat exchange channel is communicated with the air inlet duct, and the second heat exchange channel is communicated with the air outlet duct, so that the air in the air inlet duct and the air in the air outlet duct can exchange heat conveniently.

Under the condition of adopting the technical scheme, the heat exchanger is arranged, so that the air in the air inlet duct and the air in the air exhaust duct can exchange heat, namely, the air in the air inlet duct can absorb the heat of hot air in the air exhaust duct, the heat of the exhausted hot air is further utilized, and the energy conservation and emission reduction are further realized.

In a preferred technical scheme of the clothes drying equipment, a communication position between a first end of the air return duct and the air inlet duct is positioned at the downstream of the first heat exchange channel, and a communication position between a second end of the air return duct and the air exhaust duct is positioned at the upstream of the second heat exchange channel.

In a preferred technical scheme of the clothes drying equipment, a communication position of the first end of the air return duct and the air inlet duct is positioned at the upstream of the heating device.

Under the condition of adopting the technical scheme, the hot air which flows back to the clothes containing component through the air return duct can be heated again by the heating device before entering the clothes containing component, and compared with the communication position of the first end of the air return duct and the air inlet duct, the hot air can be further heated by the heating device, so that the temperature of the air entering the clothes containing component can be further increased, and the drying effect is improved.

In the preferable technical scheme of the clothes drying equipment, at least one part of the exhaust duct is arranged close to the air inlet duct.

Under the condition of adopting the technical scheme, at least one part of the exhaust duct is arranged close to the air inlet duct, and the air in the air inlet duct can be heated by the hot air in the exhaust duct, so that the heat of the exhausted hot air is further utilized, and the energy conservation and emission reduction are further realized.

In a preferred technical solution of the above clothes drying apparatus, the heating device is a heat pump device, the heat pump device includes a throttling element, a condenser, an evaporator and a compressor which together form a refrigerant circulation loop, the condenser is disposed in the air inlet duct, and the compressor is disposed outside the air inlet duct and the air exhaust duct.

In the preferable technical scheme of the clothes drying equipment, a water receiving tray is arranged below the evaporator and used for receiving condensed water condensed on the surface of the evaporator, a water delivery pipe is communicated with the water receiving tray and provided with a first on-off component, and an outlet of the water delivery pipe is close to the heat exchanger so as to spray water to the heat exchanger to cool the heat exchanger.

Under the condition of adopting the technical scheme, when the temperature in the clothes containing component is too high, the surface of the heat exchanger can be cooled by the condensed water which is dripped into the water receiving tray from the evaporator, the temperature of the air entering the clothes containing component is reduced to a certain extent, the temperature rise of the air in the clothes containing component is limited, and the clothes are prevented from being damaged due to the too high temperature.

In the preferable technical scheme of the clothes drying equipment, the exhaust duct is also communicated with an exhaust branch, the joint of the exhaust branch and the exhaust duct is positioned at the upstream of the second heat exchange channel, and a second on-off component is arranged on the exhaust branch; or the exhaust duct is also communicated with an exhaust branch, the joint of the exhaust branch and the exhaust duct is positioned at the upper stream of the second heat exchange channel, the exhaust duct is provided with a second on-off component, and the second on-off component is positioned between the second heat exchange channel and the joint.

Under the condition of adopting the technical scheme, in the situation that the second on-off component is arranged on the exhaust branch, whether the hot air exhausted from the clothes accommodating component is exhausted through the exhaust branch can be controlled through the second on-off component, when the temperature in the clothes accommodating component is overhigh, the second on-off component can be opened, so that a part of the air in the exhaust channel is exhausted from the exhaust branch without flowing through the heat exchanger, the heating effect of the air in the exhaust channel on the air in the air inlet channel can be further reduced, the temperature rise in the clothes accommodating component is limited, and the clothes are prevented from being damaged due to overhigh temperature. In the case that the second on-off member is arranged on the air exhaust duct, whether the hot air exhausted from the clothes containing member flows through the heat exchanger can be controlled through the second on-off member, when the temperature in the clothes containing member is overhigh, the second on-off member can be closed, the air in the air exhaust duct is prevented from flowing through the heat exchanger, the heating effect of the air in the air inlet duct is cancelled, the temperature rise in the clothes containing member is further limited, and the clothes are prevented from being damaged due to overhigh temperature.

In a preferred technical scheme of the clothes drying equipment, a water receiving tray is arranged below the evaporator and used for receiving condensed water condensed on the surface of the evaporator, a water delivery pipe is communicated with the water receiving tray and provided with a first on-off component, and an outlet of the water delivery pipe is communicated with the upstream of the second heat exchange channel, so that the condensed water in the water receiving tray can enter the second heat exchange channel.

Under the condition of adopting the technical scheme, when the temperature in the clothes containing component is overhigh, the condensed water dripped from the evaporator into the water receiving tray can be directly input into the second heat exchange channel, so that the air in the air inlet channel is cooled by the condensed water, the temperature of the air entering the clothes containing component is reduced as much as possible, the temperature rise in the clothes containing component is limited, and the clothes are prevented from being damaged due to overhigh temperature.

In the preferable technical scheme of the clothes drying equipment, the exhaust duct is also communicated with an exhaust branch, the joint of the exhaust branch and the exhaust duct is positioned at the upstream of the outlet of the water delivery pipe, and a second on-off member is arranged on the exhaust branch; or the exhaust duct is also communicated with an exhaust branch, the joint of the exhaust branch and the exhaust duct is positioned at the upper stream of the water pipe outlet, the exhaust duct is provided with a second on-off component, and the second on-off component is positioned between the water pipe outlet and the joint.

Drawings

Preferred embodiments of the present invention will now be described in conjunction with the drawings, and with the washer dryer machine, wherein:

FIG. 1 is a schematic structural view of a middle outer tub and a related air duct structure of an embodiment of the washing and drying all-in-one machine of the present invention;

FIG. 2 is a schematic structural diagram of an outer tube, a related air duct and a heat exchanger according to a second embodiment of the present invention;

fig. 3 is a schematic structural view of an outer barrel, a related air duct, a heat exchanger, a water pan and the like in the third embodiment of the present invention;

fig. 4 is a schematic structural view of an outer barrel, a related air duct, a heat exchanger, a water pan, and the like in the fourth embodiment of the present invention.

Reference numerals:

the device comprises an outer barrel 1, an air inlet duct 2, a first air inlet section 21, a second air inlet section 22, an exhaust duct 3, a first exhaust section 31, a second exhaust section 32, a second electromagnetic valve 33, an air return duct 4, a heat exchanger 5, a first heat exchange channel 51, a second heat exchange channel 52, a water pan 6, a water delivery pipe 7, a first electromagnetic valve 71 and an exhaust branch 8.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described in conjunction with a washing and drying machine, this is not intended to limit the scope of the present invention, and the clothes drying apparatus claimed in the present application is not limited to a washing and drying machine, but may be other apparatuses with clothes drying function, such as a clothes nursing machine, a drum-type clothes dryer, etc., and such adjustment and change to the kind of clothes drying apparatus do not limit the present invention, and should be limited within the scope of the present invention.

It is to be understood that the terms "front", "lower", and the like, refer to directions or positional relationships based on those shown in the drawings, which are used for convenience of description only, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The current dry clothing equipment that points out based on the background art directly holds the hot-air discharge to the external world in the component with the clothing, can not be unfavorable for energy saving's problem at the heat of stoving in-process make full use of hot-air, aims at make full use of from the clothing hold the heat of exhaust hot-air in the component, energy saving and emission reduction.

The technical scheme of the application is explained in detail by taking a washing and drying integrated machine as an example.

Example one

The washing and drying integrated machine comprises a box body, an inner cylinder, an outer cylinder 1, a motor, an air inlet duct 2, an air exhaust duct 3, a fan and a heat pump device, wherein the inner cylinder, the outer cylinder 1, the motor, the air inlet duct 2, the air exhaust duct 3, the fan and the heat pump device are arranged in the box body. Be provided with a plurality of water holes of crossing on the section of thick bamboo wall of inner tube, and be provided with a plurality of promotion muscle on the section of thick bamboo wall of inner tube, the inner tube rotates to set up in urceolus 1, and urceolus 1 and inner tube all open and set up forward, and the motor setting is connected with the inner tube outside urceolus 1 and its output shaft passes the section of thick bamboo wall of urceolus 1 to the drive inner tube rotates. Under the washing mode, earlier to 1 intake of urceolus, hydroenergy in the urceolus 1 can get into the inner tube through the water hole of crossing on the inner tube wall to with the clothing submergence in the inner tube, after putting into the detergent, the starter motor rotates in order to drive the inner tube, rotates the in-process, and the promotion muscle on the inner tube wall can promote the clothing to the top, then the clothing falls under the effect of gravity, beats in the wash water of inner tube, thereby realizes the cleanness of clothing.

As shown in fig. 1, an air inlet duct 2, an outer tub 1 and an exhaust duct 3 are communicated in sequence, and a blower (not shown in the figure) is provided in the air inlet duct 2. The heat pump device comprises a compressor, a condenser, a throttling element (such as a capillary tube and an electronic expansion valve) and an evaporator which jointly form a refrigerant circulation loop, wherein the compressor is arranged outside an air inlet duct 2 and an air outlet duct 3, the evaporator and the condenser are arranged in the air inlet duct 2 along the direction of air flow in the air inlet duct 2, and the throttling element can be arranged in the air inlet duct 2 or the air outlet duct 3 or arranged outside the air inlet duct 2 and the air outlet duct 3. In addition, the clothes drying equipment also comprises a return air duct 4, wherein a first end of the return air duct 4 is communicated to the air inlet duct 2, and a second end of the return air duct 4 is communicated to the air exhaust duct 3. In the drying mode, water is not filled into the outer cylinder 1, the motor, the fan and the compressor and the throttling element in the heat pump device are started, when the compressor and the throttling element are started, the temperature of the refrigerant flowing through the evaporator is low, so that the temperature of the outer surface of the evaporator is low, therefore, when the air flows near the evaporator, the moisture in the air is condensed on the surface of the evaporator, namely, the evaporator can dehumidify the air flowing near the evaporator, and when the compressor and the throttling element are started, the temperature of the refrigerant flowing through the condenser is high, so that the temperature of the outer surface of the condenser is high, therefore, the condenser can heat the air flowing near the condenser. The motor drives the inner barrel to rotate to assist clothes to turn over, outside air enters the air inlet duct 2 under the action of the fan, is dehumidified by an evaporator in the air inlet duct 2 and is heated by a condenser in the air inlet duct 2 to become dry hot air, the dry hot air enters the outer barrel 1 and the inner barrel to blow clothes, finally, a part of hot air exhausted from the outer barrel 1 flows back to the outer barrel 1 through the air return duct 4, and the rest of hot air exhausted from the outer barrel 1 is exhausted through the exhaust duct 3. The hot air flowing back into the outer barrel 1 can be used for drying clothes again, so that the heat in the exhausted hot air can be reused, the energy required to be consumed by the heating device is reduced, and the energy conservation and emission reduction are facilitated. In a more preferable case, a fan may be provided in the return duct 4 to further promote the air in the exhaust duct 3 to flow back into the intake duct 2 through the return duct 4.

Although the outer tub 1 and the inner tub are used as the whole as the laundry accommodation member in the first embodiment, the laundry accommodation member is not limited to the cylindrical structure, and for example, when the clothes drying apparatus is a laundry care machine, the laundry accommodation member may be a rectangular parallelepiped inner container.

Although the first embodiment is described by taking an example in which the fan is disposed in the air inlet duct 2, the disposition position of the fan is not limited to this, and for example, the fan may be disposed in the air outlet duct 3, or when the number of fans is plural, a part of the fan may be disposed in the air inlet duct 2, and the rest may be disposed in the air outlet duct 3.

Although the first embodiment has been described by taking a heat pump device as the heating device, and the evaporator and the condenser of the heat pump device are sequentially disposed in the air intake duct 2 along the direction of the air flow in the air intake duct 2, the heating device may have other structures, for example, the heating device may use an electric heating wire, a PTC heater, or the like. Further, when the heating device employs a heat pump device, the evaporator is not limited to be disposed at the above-mentioned position, and for example, the condenser and the evaporator may be sequentially disposed in the air inlet duct 2 along the direction of the air flow in the air inlet duct 2, and of course, the evaporator may also be disposed outside the air inlet duct 2, specifically, may be disposed near the motor for driving the inner drum, in which case the evaporator can absorb the heat of the motor, and on the one hand, can assist the motor in dissipating the heat, and on the other hand, can also assist the condenser of the heat pump device in rapidly heating up. Of course, the evaporator may be disposed in the exhaust duct 3, so as to dehumidify the air in the exhaust duct 3, and prevent the air in the exhaust duct 3 from carrying moisture from clothes and being discharged into the room, thereby preventing the humidity in the room from being excessively increased due to the use of the drying mode.

Example two

On the basis of the first embodiment, as shown in fig. 2, the clothes drying apparatus further includes a heat exchanger 5, the heat exchanger 5 includes a first heat exchange channel 51 and a second heat exchange channel 52 which are disposed close to each other, the air inlet duct 2 includes a first air inlet section 21 and a second air inlet section 22, the air outlet duct 3 includes a first air outlet section 31 and a second air outlet section 32, the first air inlet section 21, the first heat exchange channel 51 and the second air inlet section 22 are sequentially communicated, the first air outlet section 31, the second heat exchange channel 52 and the second air outlet section 32 are sequentially communicated, a condenser (not shown in the figure) and an evaporator (not shown in the figure) are disposed in the second air inlet section 22, a first end of the air return duct 4 is communicated with the second air inlet section 22, a communication position of the first end of the air return duct 4 and the second air outlet section 32 is located at an upstream of the condenser, and a communication position of the first end of the air return duct 4 and the second air outlet section 32 are communicated. That is, the communication between the first end of the return air duct 4 and the intake duct 2 is located downstream of the first heat exchange path 51 and upstream of the condenser, and the communication between the second end of the return air duct 4 and the exhaust duct 3 is located upstream of the second heat exchange path 52.

In the drying mode, a part of hot air exhausted from the outer tub 1 flows back into the outer tub 1 through the return duct 4 to dry the laundry again, thereby realizing the reuse of heat in the exhausted hot air. The remaining hot air exhausted from the tub 1 is exhausted through the exhaust duct 3, and flows into the second heat exchange path 52 of the heat exchanger 5 during the exhaust process to heat the air flowing in from the intake duct 2, and the heated air is further heated by the dehumidification of the evaporator and the further heating of the condenser, and then enters the tub 1 to dry the laundry. It can be seen that the heat of the air in the exhaust duct 3 is further utilized by the heat exchanger 5.

Although the second embodiment is described by taking an example that the air inlet duct includes two sections (i.e., the first air inlet section 21 and the second air inlet section 22) and the first heat exchange channel 51 is connected between the two sections, and the exhaust duct also includes two sections (i.e., the first exhaust section 31 and the second exhaust section 32) and the second heat exchange channel 52 is connected between the two sections, the first heat exchange channel 51 and the second heat exchange channel 52 are not limited to being respectively communicated with the air inlet duct and the exhaust duct in the above manner, for example, the first heat exchange channel 51 is communicated with the air inlet duct 2, or the air inlet duct 2 only includes one section, and the first heat exchange channel 51 is directly communicated with the air inlet end of the air inlet duct 2 or the first heat exchange channel 51 is directly communicated with the air exhaust end of the air inlet duct 2, of course, in the case that the first heat exchange channel 51 is directly communicated with the air outlet end of the air inlet duct, the first heat exchange channel 51 may be directly communicated with the outer tub 1, that is, the air inlet duct 2 is indirectly communicated with the outer tub 1 through the first heat exchange channel 51. The second heat exchange channel 52 is communicated with the exhaust duct 3 in a manner similar to the connection between the first heat exchange channel 51 and the air inlet duct 2, and will not be described again.

Although the second embodiment is described by taking an example that the communication position between the first end of the air return duct 4 and the air inlet duct 2 is located downstream of the first heat exchange channel 51 and upstream of the condenser, and the communication position between the second end of the air return duct 4 and the air outlet duct 3 is located upstream of the second heat exchange channel 52, the specific connection positions of the first end and the second end of the air return duct 4 on the air inlet duct 2 and the air outlet duct 3 are not limited to these, for example: for the first end of the air return duct 4, the communication position between the first end of the air return duct 4 and the air inlet duct 2 may be located downstream of the first heat exchange channel 51 and the condenser, or the communication position between the first end of the air return duct 4 and the air inlet duct 2 may be located upstream of the first heat exchange channel 51. As for the second end of the return air duct 4, it may be that the communication between the second end of the return air duct 4 and the exhaust air duct 3 is located downstream of the second heat exchange passage 52.

Although the second embodiment is described by taking the air inlet duct 2 and the air outlet duct 3 as an example of heat exchange via the heat exchanger 5, the heat exchange manner is not exclusive, and for example, at least a portion of the air outlet duct 3 may be disposed near the air inlet duct 2 so that the air inlet duct 2 exchanges heat with air in the air outlet duct 3.

EXAMPLE III

As shown in fig. 3, on the basis of the second embodiment, a water pan 6 is disposed below an evaporator (not shown in the figure), as described above, when the compressor and the throttling element are started, the surface temperature of the evaporator is low, moisture in the air will condense on the surface of the evaporator to form condensed water, the water pan 6 is used for receiving the condensed water condensed on the surface of the evaporator, a water pipe 7 is communicated with the water pan 6, a first electromagnetic valve 71 is disposed on the water pipe 7, the water pan 6 is higher than an outlet of the water pipe 7, the outlet of the water pipe 7 is disposed near the heat exchanger 5, and when the first electromagnetic valve 71 is opened, the water in the water pan 6 flows out from the outlet of the water pipe 7 to the surface of the heat exchanger 5, that is, the heat exchanger 5 is cooled by pouring water to the heat exchanger 5. The second air exhaust section 32 of the air exhaust duct 3 is also communicated with an air exhaust branch 8, that is, the joint of the air exhaust branch 8 and the air exhaust duct 3 is located at the upstream of the second heat exchange channel 52, the second air exhaust section 32 of the air exhaust duct 3 is provided with a second electromagnetic valve 33, and the second electromagnetic valve 33 is located between the second heat exchange channel 52 and the joint.

The outer barrel 1 can be internally provided with a temperature sensor for measuring the temperature in the outer barrel 1, when the temperature in the outer barrel 1 is detected to be overhigh, the first electromagnetic valve 71 can be opened to spray water in the water receiving tray 6 to the surface of the heat exchanger 5, so as to cool the air in the air inlet channel 2 flowing through the heat exchanger 5 and reduce the temperature of the air entering the outer barrel 1, in addition, the second electromagnetic valve 33 can be closed, at the moment, the air discharged from the outer barrel 1 is sequentially discharged through the second air discharge section 32 and the air discharge branch 8 of the air discharge channel 3 and does not flow through the second heat exchange channel 52 of the heat exchanger 5, namely, the heating effect of the air in the air inlet channel 2 by the air in the air discharge channel 3 is cancelled, the air temperature in the air inlet channel 2 is prevented from being increased, and the air temperature in the outer barrel 1 is further prevented from being increased. Of course, the compressor in the heat pump device can be turned off to avoid the air in the outer cylinder 1 being heated by the condenser.

As can be seen from the above description, the third embodiment can not only fully utilize the heat of the air in the exhaust duct 3 to heat the air in the air inlet duct 2 when the temperature of the air in the outer tub 1 needs to be raised, but also stop utilizing the heat of the air in the exhaust duct 3 to heat the air in the air inlet duct 2 when the temperature of the air in the outer tub 1 is too high, and cool the air in the air inlet duct 2 by the condensed water of the evaporator, so as to avoid further temperature rise of the air entering the outer tub 1.

Although the third embodiment is described by setting the first electromagnetic valve 71 on the water pipe 7 as the first on-off member on the water pipe 7, the first on-off member may also be a valve for manually controlling on-off, and certainly, when the height of the water pan 6 is lower than the height of the outlet of the water pipe 7, the first on-off member may also be a water pump, when the water pump is started, water can flow out from the water pan 6 and is supplied to the heat exchanger 5 through the water pipe 7, and when the water pump is turned off, water cannot flow out from the outlet of the water pipe 7 and is supplied to the heat exchanger 5.

Although the third embodiment is described by taking the second electromagnetic valve 33 provided on the exhaust duct 3 as an example, it is not limited to the electromagnetic valve, and a valve for controlling on/off manually may be used, and besides, the electromagnetic valve or the manually operated valve may be provided on the exhaust branch 8 in addition to the exhaust duct 3, in this case, when the temperature of the air in the outer tub 1 is too high, the valve on the exhaust branch 8 may be opened, so that the air in the exhaust duct 3 can be partially exhausted through the exhaust branch 8, which can reduce the amount of air in the exhaust duct 3 flowing into the heat exchanger 5, weaken the heating effect on the air in the air inlet duct 2, and thus reduce the temperature of the air flowing into the outer tub 1.

Although the third embodiment is described by taking an example that the exhaust duct 3 is communicated with the exhaust branch duct 8, and the connection position between the exhaust branch duct 8 and the exhaust duct 3 is located at the upstream of the second heat exchange channel 52, the connection position between the exhaust branch duct 8 and the exhaust duct 3 is not limited to this, and the connection position between the exhaust branch duct 8 and the exhaust duct 3 may also be located at the downstream of the second heat exchange channel 52, and of course, compared to this manner, the manner in the third embodiment (the connection position between the exhaust branch duct 8 and the exhaust duct 3 is located at the upstream of the second heat exchange channel 52) can discharge the air part flowing into the second heat exchange channel 52 when the exhaust branch duct 8 is not provided, and directly discharge the air part without flowing into the second heat exchange channel 52 of the heat exchanger 5, further reducing the heating of the air in the intake duct 2, and further preventing the laundry from being damaged due to an excessive temperature, therefore, the manner in the third embodiment is a more preferable manner. In addition, the exhaust branch 8 is not necessarily provided, and can be eliminated.

Example four

As shown in fig. 4, on the basis of the second embodiment, a water pan 6 is disposed below an evaporator (not shown in the figure), the water pan 6 is used for receiving condensed water condensed on the surface of the evaporator, a water delivery pipe 7 is communicated with the water pan 6, the water pan 6 is higher than an outlet of the water delivery pipe 7, a first electromagnetic valve 71 is disposed on the water delivery pipe 7, the outlet of the water delivery pipe 7 is communicated with the upstream of the second heat exchange channel 52, specifically, the outlet of the water delivery pipe 7 is communicated with the second air exhaust section 32 of the air exhaust duct 3 (as shown in fig. 4), of course, the outlet of the water delivery pipe 7 is connected between the second heat exchange channel 52 and the second air exhaust section 32, in short, the outlet of the water delivery pipe 7 is communicated with the upstream of the second heat exchange channel 52, when the first electromagnetic valve 71 is opened, the condensed water received in the water pan 6 can flow out from the outlet of the water delivery pipe 7 and enter the second heat exchange channel 52, and certainly, in order to enable water to smoothly flow into the second heat exchange channel 52, the second air exhaust section 32 can be disposed higher than the second heat exchange channel. The exhaust duct 3 is also communicated with an exhaust branch 8, the joint of the exhaust branch 8 and the exhaust duct 3 is positioned at the upstream of the outlet of the water delivery pipe 7, the exhaust duct 3 is provided with a second electromagnetic valve 33, and the second electromagnetic valve 33 is positioned between the outlet and the joint of the water delivery pipe 7.

When the temperature in the outer barrel 1 is detected to be too high, the first electromagnetic valve 71 can be opened to input the water in the water pan 6 into the second heat exchange channel 52 of the heat exchanger 5, so as to cool the water in the air inlet duct 2 through the condensed water, thereby reducing the temperature of the air entering the outer barrel 1, in addition, the second electromagnetic valve 33 can be closed, at this time, the air discharged from the outer barrel 1 is discharged sequentially through the second air exhaust section 32 of the air exhaust duct 3 and the air exhaust branch 8 and does not flow through the second heat exchange channel 52 of the heat exchanger 5, that is, the heating effect of the air in the air exhaust duct 3 on the air in the air inlet duct 2 is cancelled, thereby avoiding the increase of the air temperature in the air inlet duct 2, and further avoiding the increase of the air temperature in the outer barrel 1. Of course, the compressor in the heat pump device may also be turned off to avoid heating the air in the outer tub 1 by the condenser.

As can be seen from the above description, the solution of the fourth embodiment can not only fully utilize the heat of the air in the exhaust duct 3 to heat the air in the air inlet duct 2 when the temperature of the air in the outer tub 1 needs to be raised, but also stop the heat of the air in the exhaust duct 3 to heat the air in the air inlet duct 2 when the temperature of the air in the outer tub 1 is too high, and cool the air in the air inlet duct 2 by the condensed water of the evaporator, so as to avoid further temperature rise of the air entering the outer tub 1.

Similarly to the third embodiment, the first electromagnetic valve 71 may also be replaced by a valve or a water pump for manually controlling on/off, and the connection between the exhaust branch 8 and the exhaust duct 3 may specifically be the connection between the exhaust branch 8 and the exhaust duct 3 located downstream of the second heat exchange channel 52. Of course, the air outlet branch 8 can also be omitted.

Although the fourth embodiment is described by taking the example that the second electromagnetic valve 33 is disposed on the exhaust duct 3 and the second electromagnetic valve 33 is located between the outlet of the water delivery pipe 7 and the connection point, the second electromagnetic valve 33 can be replaced by a valve for manually controlling the on-off, and besides, the second electromagnetic valve 33 can be disposed on the exhaust branch 8 in addition to the exhaust duct 3, in this case, when the temperature of the air in the outer tub 1 is too high, the valve on the exhaust branch 8 can be opened, so that the air in the exhaust duct 3 can be partially exhausted through the exhaust branch 8, which can reduce the amount of the air in the exhaust duct 3 flowing into the heat exchanger 5, weaken the heating effect on the air in the air inlet duct 2, and thus reduce the temperature of the air flowing into the outer tub 1.

Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.

Furthermore, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments rather than others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. The utility model provides a clothes drying equipment, its characterized in that, clothes drying equipment includes the box and sets up clothing in the box holds component, air inlet duct, exhaust airway, fan and heating device, the air inlet duct the clothing holds the component with the exhaust airway communicates in proper order, the fan sets up the air inlet duct and/or in the exhaust airway, heating device sets up in the air inlet duct, clothes drying equipment still includes the return air way, the first end intercommunication in return air way to the air inlet duct, the second end intercommunication in return air way to the exhaust airway.

2. The clothes drying apparatus according to claim 1, further comprising a heat exchanger including a first heat exchange passage and a second heat exchange passage disposed adjacent to each other, the first heat exchange passage communicating with the air inlet duct, the second heat exchange passage communicating with the air outlet duct so that air in the air inlet duct exchanges heat with air in the air outlet duct.

3. The clothes drying apparatus according to claim 2, wherein a communication between a first end of the return air duct and the intake air duct is located downstream of the first heat exchange channel, and a communication between a second end of the return air duct and the exhaust air duct is located upstream of the second heat exchange channel.

4. Laundry drying apparatus according to claim 1 or 3, wherein the communication of the first end of the return air duct with the inlet air duct is upstream of the heating means.

5. Clothes drying apparatus according to claim 1, wherein at least a portion of the exhaust air duct is disposed adjacent to the intake air duct.

6. The clothes drying apparatus according to claim 3, wherein the heating device is a heat pump device, the heat pump device includes a throttling element, a condenser, an evaporator and a compressor which together form a refrigerant circulation loop, the condenser is disposed in the air inlet duct, and the compressor is disposed outside the air inlet duct and the air outlet duct.

7. The clothes drying equipment according to claim 6, wherein a water pan is arranged below the evaporator and used for receiving condensed water condensed on the surface of the evaporator, a water delivery pipe is communicated with the water pan and provided with a first on-off member, and a water delivery pipe outlet is arranged close to the heat exchanger so as to spray water to the heat exchanger to cool the heat exchanger.

8. The clothes drying equipment according to claim 7, wherein the exhaust duct is further communicated with an exhaust branch, the connection position of the exhaust branch and the exhaust duct is positioned at the upstream of the second heat exchange channel, and a second cut-off member is arranged on the exhaust branch; or

The exhaust duct is also communicated with an exhaust branch, the joint of the exhaust branch and the exhaust duct is positioned at the upper stream of the second heat exchange channel, the exhaust duct is provided with a second on-off component, and the second on-off component is positioned between the second heat exchange channel and the joint.

9. The clothes drying equipment according to claim 6, wherein a water pan is arranged below the evaporator and used for receiving condensed water condensed on the surface of the evaporator, a water delivery pipe is communicated with the water pan and provided with a first on-off member, and an outlet of the water delivery pipe is communicated with the upstream of the second heat exchange channel, so that the condensed water in the water pan can enter the second heat exchange channel.

10. The clothes drying equipment according to claim 9, wherein the exhaust duct is further communicated with an exhaust branch, the connection position of the exhaust branch and the exhaust duct is positioned at the upstream of the outlet of the water delivery pipe, and a second cut-off member is arranged on the exhaust branch; or

The exhaust duct is also communicated with an exhaust branch, the joint of the exhaust branch and the exhaust duct is positioned at the upper stream of the water pipe outlet, the exhaust duct is provided with a second on-off component, and the second on-off component is positioned between the water pipe outlet and the joint.