CN219568412U

CN219568412U - Drying system of drying equipment and drying equipment

Info

Publication number: CN219568412U
Application number: CN202222984710.5U
Authority: CN
Inventors: 潘永坤; 杨龙; 侯永顺; 李涛
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: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-08-22
Anticipated expiration: 2032-11-09

Abstract

The utility model relates to the technical field of clothes treatment, in particular to a drying system of drying equipment and the drying equipment, and aims to solve the problem that the ventilation effect of the fresh air function of the existing drying equipment is poor. Therefore, the drying system comprises a drying air duct, a fan, an air inlet pipeline, an air outlet pipeline and an air pocket structure, wherein a first communication hole is formed in the drying air duct, one end of the air inlet pipeline is communicated with the outside of a box body of the drying equipment, the other end of the air inlet pipeline is communicated with the drying air duct, one end of the air outlet pipeline is communicated with the outside of the box body, the other end of the air outlet pipeline is communicated with the first communication hole, and the air pocket structure is arranged close to the first communication hole and can block air flow flowing along the drying air duct so as to increase the air flow entering the air outlet pipeline. Through such setting, can make more air currents get into the air-out pipeline through first communication hole, increase the air flow that gets into the air-out pipeline, inhale more fresh air, improve ventilation effect.

Description

Drying system of drying equipment and drying equipment

Technical Field

The utility model relates to the technical field of clothes treatment, and particularly provides a drying system of drying equipment and the drying equipment.

Background

The drying device is a device capable of drying clothes, and common drying devices include a clothes dryer, a washing and drying integrated machine and the like.

Taking the washing and drying integrated machine as an example, the existing washing and drying integrated machine can wash clothes and dry the clothes after washing, and the washing and drying integrated machine has a fresh air function, and the drying air channel is communicated with the outside of the box body through the air inlet pipeline and the air outlet pipeline, so that fresh air can be introduced.

However, when the existing washing and drying integrated machine executes the fresh air function, the air flow discharged from the air outlet pipeline is smaller, so that the air quantity of the sucked fresh air is smaller, and the actual ventilation effect is poorer.

Accordingly, there is a need in the art for a new solution to the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the technical problem that the ventilation effect of the fresh air function of the existing drying equipment is poor.

In a first aspect, the present utility model provides a drying system of a drying apparatus, where the drying system includes a drying air duct, and a fan installed on the drying air duct, the drying system further includes an air inlet pipe, an air outlet pipe, and a wind receiving structure located in the drying air duct, the drying air duct is provided with a first communication hole, one end of the air inlet pipe is communicated with the outside of a box of the drying apparatus, the other end of the air inlet pipe is communicated with the drying air duct, one end of the air outlet pipe is communicated with the outside of the box of the drying apparatus, the other end of the air outlet pipe is communicated with the first communication hole, the wind receiving structure is located near the first communication hole, and the wind receiving structure can block airflow flowing along the drying air duct so as to increase airflow entering the air outlet pipe.

In the preferred technical scheme of the drying system of the drying device, the air-catching structure is an air-catching opening arranged at the other end of the air outlet pipeline.

In the preferred technical scheme of the drying system of the drying device, the aperture of the air inlet is smaller along the flowing direction of the air flow.

In the preferred technical scheme of the drying system of the drying device, the aperture of the air inlet is gradually reduced along the flowing direction of the air flow.

In a preferred embodiment of the drying system of the drying apparatus, the first communication hole is located at a downstream end of the fan.

In the preferred technical scheme of the drying system of the drying device, one end of the air outlet pipeline extends to the front panel of the box body, a second communication hole is formed in the front panel, and the air outlet pipeline is communicated with the outside of the box body by means of the second communication hole.

In a preferred technical scheme of the drying system of the drying device, one end of the air outlet pipeline is provided with an air deceleration structure to reduce the speed of the air flow discharged from the air outlet pipeline.

In the preferred technical scheme of the drying system of the drying device, one end of the air inlet pipeline extends to the back plate of the box body, a third communication hole is formed in the back plate, and the air inlet pipeline is communicated with the outside of the box body by means of the third communication hole.

In the preferred technical scheme of the drying system of the drying device, one end of the air inlet pipeline is provided with an air accelerating structure to increase the speed of the air flow entering the air inlet pipeline.

In the preferred technical scheme of the drying system of the drying device, the drying air duct is provided with a fourth communication hole at the upstream end of the fan, and the fourth communication hole is communicated with the other end of the air inlet pipeline and is close to the air inlet end of the fan.

In the preferred technical scheme of the drying system of the drying device, the drying system is a heat pump drying system, the heat pump drying system comprises a drainage pipeline which is communicated with the drying air duct and is used for discharging condensed water, and the other end of the air inlet pipeline is communicated with the drying air duct by virtue of the drainage pipeline.

In the preferred technical scheme of the drying system of the drying device, the drying system further comprises a first electric control valve arranged on the air inlet pipeline, and the first electric control valve is used for controlling the on-off state of the air inlet pipeline.

In the preferred technical scheme of the drying system of the drying device, the drying system further comprises a second electric control valve arranged on the air outlet pipeline, and the second electric control valve is used for controlling the on-off state of the air outlet pipeline.

In a second aspect, the present utility model also provides a drying apparatus comprising the drying system described above.

In the preferable technical scheme of the drying equipment, the drying equipment is a clothes dryer or a washing and drying integrated machine.

Under the condition of adopting the technical scheme, the washing and drying integrated machine can block the airflow flowing along the drying air duct by arranging the air-receiving structure at the position, close to the first communication hole, in the drying air duct, so that more airflow enters the air outlet pipeline through the first communication hole, the airflow entering the air outlet pipeline can be increased, more fresh air can be inhaled, and the ventilation effect is improved.

Further, the air-pocket structure is an air-pocket opening arranged at the other end of the air outlet pipeline. By the arrangement, besides blocking the air flow flowing along the drying air duct, the air flow can be effectively guided, so that more air flows enter the air outlet pipeline.

Still further, the aperture of the pocket air port becomes smaller in the flow direction of the air flow. By the arrangement, the flow speed of the air flow can be increased, so that more air flows into the air outlet pipeline are facilitated.

Still further, one end of the air outlet pipeline is provided with a gas deceleration structure to reduce the speed of the air flow discharged from the air outlet pipeline. By such arrangement, the influence of the air flow discharged from the air outlet duct on the user can be avoided.

Still further, one end of the air inlet pipeline is provided with a gas accelerating structure to increase the speed of the gas flow entering the air inlet pipeline. By this arrangement, more fresh air is advantageously introduced into the air intake.

In addition, the drying equipment further provided on the basis of the technical scheme comprises the drying system, so that the drying equipment has the technical effect of the drying system, and compared with the drying equipment before improvement, the ventilation effect of the fresh air function of the drying equipment is better.

Drawings

Preferred embodiments of the present utility model are described below in conjunction with a washing and drying all-in-one machine and its accompanying drawings, in which:

FIG. 1 is a schematic view of a first embodiment of a washing and drying integrated machine according to the present utility model;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is an enlarged schematic view at B in FIG. 1;

FIG. 4 is a schematic diagram illustrating the assembly of the air outlet pipe and the drying duct according to the present utility model;

FIG. 5 is a cross-sectional view at A-A in FIG. 4;

FIG. 6 is a schematic diagram of the structure of the air outlet pipeline of the present utility model;

FIG. 7 is a schematic view of a second embodiment of a washing and drying integrated machine according to the present utility model;

FIG. 8 is an enlarged schematic view at C in FIG. 7;

fig. 9 is an enlarged schematic view at D in fig. 7.

List of reference numerals:

1. a case; 11. a front panel; 12. a back plate; 111. a second communication hole; 121. a third communication hole; 2. an outer cylinder; 3. an inner cylinder; 4. a drying air duct; 41. a first communication hole; 42. a fourth communication hole; 4A, a condensation air duct; 4B, heating the air duct; 5. a blower; 6. an air inlet pipeline; 61. a gas acceleration structure; 7. an air outlet pipeline; 71. a gas deceleration structure; 72. an air inlet; 81. a heater; 82. a condenser; 83. an evaporator; 84. a drainage pipeline; 91. a first electrically controlled valve; 92. and the second electric control valve.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

For example, although the embodiments described below are described in connection with a washing and drying machine, the technical solution of the present utility model is equally applicable to other types of drying apparatuses, such as clothes dryers, etc., and such adjustments and changes to the applicable objects do not depart from the principle and scope of the present utility model, and should be limited to the protection scope of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "inner", "outer", "upper", "lower", "left", "right", and the like, which indicate directions or positional relationships are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus 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 utility model. Furthermore, the terms "first," "second," "third," "fourth," and the like 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 utility model, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "mounted" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

The problem that ventilation effect is poor based on the new trend function of current washing and drying all-in-one that the prior art pointed out. The utility model provides a drying system of a washing and drying integrated machine and the washing and drying integrated machine, and aims to block flowing air flow by arranging a wind-receiving structure near a first communication hole so that more air flow enters an air outlet pipeline through the first communication hole, thereby increasing the air flow entering the air outlet pipeline, further sucking more fresh air and improving the ventilation effect.

Specifically, the washing and drying integrated machine of the present utility model includes a cabinet, and a laundry treating drum and a drying system installed in the cabinet, the drying system being capable of supplying hot air into the laundry treating drum to dry laundry in the laundry treating drum.

The drying system comprises a drying air channel, a fan, an air inlet pipeline, an air outlet pipeline and an air pocket structure, wherein the fan is arranged on the drying air channel, a first communication hole is formed in the drying air channel, one end of the air inlet pipeline is communicated with the outside of a box body of the washing and drying integrated machine, the other end of the air inlet pipeline is communicated with the drying air channel, one end of the air outlet pipeline is communicated with the outside of the box body of the washing and drying integrated machine, the other end of the air outlet pipeline is communicated with the first communication hole, the air pocket structure is positioned in the drying air channel and is close to the first communication hole, and the air pocket structure can block air flow flowing along the drying air channel so as to increase the air flow entering the air outlet pipeline.

Through set up the air pocket structure in the stoving wind channel and block the air current that comes that is close to first communication hole to in making more air currents get into the air-out pipeline through first communication hole, thereby can increase the air current that gets into the air-out pipeline, and then can inhale more fresh air, improve ventilation effect.

The technical scheme of the present utility model will be described in detail with reference to two specific embodiments.

Example 1

A first embodiment of the washing and drying integrated machine of the present utility model will be described in detail with reference to fig. 1 to 6.

As shown in fig. 1, the washing and drying integrated machine of the present embodiment includes a casing 1, and an outer tub 2, an inner tub 3, and a drying system provided in the casing 1, the inner tub 3 being rotatably provided in the outer tub 2.

Wherein, drying system includes stoving wind channel 4, fan 5, air inlet pipeline 6 and play tuber pipe way 7, and fan 5 installs on stoving wind channel 4, and the one end of air inlet pipeline 6 communicates with the outside of box 1, and the other end and the stoving wind channel 4 of air inlet pipeline 6 communicate, and the one end of play tuber pipe way 7 communicates with the outside of box 1, is provided with first communication hole 41 on the stoving wind channel 4, and the other end and the first communication hole 41 intercommunication of play tuber pipe way 7 to realize the intercommunication with stoving wind channel 4.

As shown in fig. 1, 2, and 4 to 6, the drying system of the present embodiment further includes a pocket structure located in the drying duct 4, wherein the pocket structure is disposed near the first communication hole 41, and the pocket structure is configured to block the airflow flowing along the drying duct 4 so as to increase the airflow entering the air outlet duct 7.

It should be noted that, in practical applications, those skilled in the art may set the air pocket structure as an air pocket, or may set the air pocket structure as an air pocket plate, etc., and such modifications and changes to the specific structural form of the air pocket structure do not deviate from the principle and scope of the present utility model, and should be limited to the protection scope of the present utility model.

Preferably, as shown in fig. 4 to 6, the air-catching structure is an air-catching opening 72 provided at the other end of the air-out duct 7.

By providing the air-pocket structure in the form of the air-pocket opening 72, besides blocking the air flow flowing along the drying duct 4, the air flow can be effectively guided, so that the air flow flows toward the air outlet duct 7, and more air flows can enter the air outlet duct 7.

Preferably, as shown in fig. 4 to 6, the aperture of the pocket 72 becomes smaller in the flow direction of the air flow.

By making the aperture of the air pocket 72 smaller in the direction in which the air flows, the flow speed of the air flow can be increased, thereby facilitating more air flow into the air outlet duct 7.

It should be noted that, in practical application, the aperture of the air-pocket 72 may be reduced stepwise, or the aperture of the air-pocket 72 may be reduced smoothly and gradually, which is not limited by the principle and scope of the present utility model.

Preferably, as shown in fig. 4 to 6, the aperture of the pocket 72 gradually becomes smaller in the flow direction of the air flow.

By smoothly and gradually reducing the diameter of the air inlet 72, the air flow entering the air inlet 72 can smoothly flow.

Preferably, as shown in fig. 1, the first communication hole 41 is located at the downstream end of the blower 5.

By positioning the first communication hole 41 communicating with the air outlet duct 7 at the downstream end of the blower 5, the air flow in the drying duct 4 is more facilitated to flow into the air outlet duct 7.

Illustratively, as shown in fig. 1, the drying duct 4 of the present embodiment includes a condensing duct 4A and a heating duct 4B, the first communication hole 41 is provided on the heating duct 4B, the fan 5 is installed between the condensing duct 4A and the heating duct 4B, one end of the condensing duct 4A is communicated with the rear portion of the inner tube 3, the other end of the condensing duct 4A is communicated with the air inlet end of the fan 5, one end of the heating duct 4B is communicated with the air outlet end of the fan 5, the other end of the heating duct 4B is communicated with the front end of the inner tube 3, that is, the condensing duct 4A is located at the upstream end of the fan 5, the heating duct 4B is located at the downstream end of the fan 5, and the heater 81 is provided in the heating duct 4B.

In the process of drying clothes, under the action of the fan 5, air flows circularly along the inner cylinder 3, the condensation air channel 4A and the heating air channel 4B, moisture carried by the hot and humid air is condensed in the process of flowing through the condensation air channel 4A so as to become dry air, and the dry air is heated by the heater 81 arranged in the heating air channel 4B in the process of flowing through the heating air channel 4B so as to become hot air, and the hot air blows into the inner cylinder 3 so as to dry the clothes positioned in the inner cylinder 3.

The other end of the air inlet pipeline 6 is communicated with the condensation air channel 4A, the other end of the air outlet pipeline 7 is communicated with the heating air channel 4B by means of the first communication hole 41, after clothes are dried, the fan 5 continues to operate, but a heater 81 arranged in the heating air channel 4B stops operating, under the action of the fan 5, cold air outside the box body 1 enters the condensation air channel 4A along the air inlet pipeline 6 and enters the heating air channel 4B after being mixed with high-temperature gas in the condensation air channel 4A, when the mixed gas flows through the joint of the heating air channel 4B and the air outlet pipeline 7, a part of gas continues to flow into the inner barrel 3 along the heating air channel 4B, and a part of gas is discharged to the outside of the box body 1 along the air inlet pipeline 6, so that inner and outer two circulation are formed inside the box body 1, and the temperature in the box body 1 can be reduced as soon as possible.

It should be noted that, the air inlet pipeline 6 and the air outlet pipeline 7 are provided to communicate the drying air duct 4 with the outside of the box 1, and have other functions besides the above-described functions.

For example, if the user does not select the drying program, the effects of dehumidification, clothes drying and deodorization can be achieved by providing the air inlet pipeline 6 and the air outlet pipeline 7, so that bacteria breeding in the drum is reduced.

Specifically, after the user washes the clothes, the fan 5 is started at the moment to strengthen the air flow exchange between the inside of the drum and the external environment, the drying air duct 4, the air inlet pipeline 6 and the air outlet pipeline 7 form an inner circulation and an outer circulation, the two circulation functions are different, the inner circulation air quantity is large, the air speed is high, the moisture on the surface of the clothes can be taken away rapidly, the outer circulation function mainly discharges the moisture, the air in the drum is prevented from reaching a saturated state, the moisture on the surface of the clothes can be taken away continuously, the inside environment of the drum is dried, and the generation of peculiar smell, mold and the like is avoided; in addition, if the user does not take out the clothes in time after washing, especially at night, the fan 5 is started at the moment and is matched with the inner cylinder 3 to rotate, so that clothes wrinkles can be avoided, the water content of the clothes is reduced, and the effect of early wearing of a small amount of clothes can be realized; therefore, the fresh air function can be operated under the conditions of low noise and low power consumption.

Preferably, as shown in fig. 1, one end of the air outlet pipe 7 extends to the front panel 11 of the case 1, and a second communication hole 111 is provided on the front panel 11, and the air outlet pipe 7 communicates with the outside of the case 1 through the second communication hole 111.

Illustratively, as shown in fig. 1, a first communication hole 41 is provided in the heating duct 4B, a second communication hole 111 is provided in the front panel 11 of the case 1, the right end of the air outlet duct 7 communicates with the first communication hole 41, and the left end of the air outlet duct 7 communicates with the second communication hole 111.

Preferably, as shown in fig. 1 and 2, one end of the air outlet duct 7 is provided with an air deceleration structure 71 to reduce the speed of the air flow discharged from the air outlet duct 7.

By providing the air deceleration structure 71 at the air outlet end of the air outlet duct 7 to reduce the air outlet speed, the influence of the air flow discharged from the air outlet duct 7 on the user can be avoided.

Illustratively, as shown in fig. 1 and 2, the left end of the air outlet duct 7 is provided with a flare, and the large-caliber end of the flare communicates with the second communication hole 111 provided on the front panel 11, at which the gas deceleration structure 71 is formed.

Preferably, as shown in fig. 1, one end of the air intake pipe 6 extends to the back plate 12 of the case 1, a third communication hole 121 is provided on the back plate 12, and the air intake pipe 6 communicates with the outside of the case 1 via the third communication hole 121.

The air inlet pipeline 6 is communicated with the outside of the box body 1 through the third communication hole 121 arranged on the back plate 12, so that the length of the air inlet pipeline 6 is reduced, and the influence on the attractiveness of the box body 1 can be avoided.

Preferably, as shown in fig. 1 and 3, one end of the air intake duct 6 is provided with a gas acceleration structure 61 to increase the speed of the gas flow entering the air intake duct 6.

By providing the air acceleration structure 61 at the air inlet end of the air inlet pipe 6 to increase the air inlet speed, more fresh air can be introduced into the air inlet pipe 6.

Illustratively, as shown in fig. 1 and 3, the right end of the air outlet duct 7 is provided with a bell mouth, and the large-caliber end of the bell mouth communicates with a third communication hole 121 provided on the back plate 12, at which a gas speed increasing structure 61 is formed.

Preferably, as shown in fig. 1 and 3, the drying duct 4 is provided with a fourth communication hole 42 at an upstream end of the blower 5, and the fourth communication hole 42 communicates with the other end of the air intake duct 6 and is provided near an air intake end of the blower 5.

By providing the fourth communication hole 42 communicating with the air intake duct 6 at a position near the air intake end of the blower 5, more cool air can be sucked.

Illustratively, as shown in fig. 1 and 3, the fourth communication hole 42 is provided on the condensation duct 4A, the third communication hole 121 and the fourth communication hole 42 are located on the same horizontal plane, and the intake duct 6 extends in the horizontal direction, with a short path.

Preferably, as shown in fig. 1 and 3, the drying system of the present embodiment further includes a first electrically controlled valve 91 installed on the air intake pipe 6, and the first electrically controlled valve 91 is used for controlling the on-off state of the air intake pipe 6.

Wherein, first automatically controlled valve 91 is connected with the controller electricity of washing and drying all-in-one, at the in-process that washing and drying all-in-one dried to the clothing, can make the first automatically controlled valve 91 of controller control break off air inlet pipeline 6, forbid stoving wind channel 4 to communicate with the outside of box 1 through air inlet pipeline 6 to can avoid influencing the drying efficiency to the clothing because of cold air's entering.

After the clothes are dried, the controller controls the first electric control valve 91 to connect the air inlet pipeline 6, so that the air inlet pipeline 6 communicates the drying air duct 4 with the outside of the box body 1 to introduce cold air outside the box body 1.

Preferably, as shown in fig. 1 and 2, the drying system of the present embodiment further includes a second electrically controlled valve 92 installed on the air outlet pipeline 7, where the second electrically controlled valve 92 is used to control the on-off state of the air outlet pipeline 7.

The second electric control valve 92 is electrically connected with the controller of the washing and drying integrated machine, and in the process of drying clothes by the washing and drying integrated machine, the controller can control the second electric control valve 92 to disconnect the air outlet pipeline 7, and the drying air duct 4 is prohibited from being communicated with the outside of the box body 1 through the air outlet pipeline 7, so that the influence on the drying efficiency of the clothes due to the loss of hot air can be avoided.

After the clothes are dried, the controller controls the second electric control valve 92 to connect the air inlet pipeline 6, so that the air outlet pipeline 7 communicates the drying air duct 4 with the outside of the box body 1 to discharge hot air in the box body 1.

Example two

A second embodiment of the washing and drying integrated machine of the present utility model will be described in detail with reference to fig. 4 to 9.

As shown in fig. 7, the washing and drying integrated machine of the present embodiment includes a casing 1, and an outer tub 2, an inner tub 3, and a drying system provided in the casing 1, the inner tub 3 being rotatably provided in the outer tub 2.

Wherein, the drying system of this embodiment is a heat pump drying system, and heat pump drying system includes stoving wind channel 4, fan 5, air inlet pipeline 6 and play tuber pipe way 7, and fan 5 installs on stoving wind channel 4, and the one end of air inlet pipeline 6 communicates with the outside of box 1, and the other end and the stoving wind channel 4 of air inlet pipeline 6 communicate, and the one end and the outside of box 1 of play tuber pipe way 7 communicate, are provided with first communication hole 41 on the stoving wind channel 4, and the other end and the first communication hole 41 intercommunication of play tuber pipe way 7.

As shown in fig. 7, the heat pump drying system of the present embodiment further includes a compressor (not shown in the drawings), a condenser 82 and an evaporator 83 connected in sequence, wherein the evaporator 83 and the condenser 82 are installed in the drying duct 4, and the hot and humid air is condensed with moisture carried by the hot and humid air as it passes through the evaporator 83 to become dry air, and the dry air is heated as it passes through the condenser 82 to become hot air, and the hot air is blown into the inner tub 3 to dry laundry located in the inner tub 3.

Illustratively, as shown in fig. 7, one end of the drying duct 4 communicates with the rear portion of the inner cylinder 3, the other end of the drying duct 4 communicates with the front end of the inner cylinder 3, and the evaporator 83, the condenser 82, and the blower 5 are disposed in the drying duct 4 in the flow direction of the air flow.

As shown in fig. 4 to 8, the drying system of the present embodiment further includes a pocket structure located in the drying duct 4, wherein the pocket structure is disposed near the first communication hole 41 and is configured to block the airflow flowing along the drying duct 4 to increase the airflow entering the air outlet duct 7.

By providing the air-pocket structure in the form of the air-pocket 72, in addition to blocking the air flow flowing along the drying duct 4, the air flow can be effectively guided so that more air flow enters the air-out duct 7.

Preferably, as shown in fig. 7, the first communication hole 41 is located at the downstream end of the blower 5.

Preferably, as shown in fig. 7 and 9, the heat pump drying system of the present embodiment further includes a drain pipe 84 for discharging condensed water, which is communicated with the drying duct 4, and the other end of the air intake pipe 6 is communicated with the drying duct 4 via the drain pipe 84.

By communicating the air intake pipe 6 with the drying duct 4 by means of the drain pipe 84, it is possible to avoid opening a communication hole communicating with the air intake pipe 6 on the drying duct 4, and to simplify the structural design.

In the process of drying clothes, under the action of the fan 5, air flows circularly along the inner cylinder 3 and the drying air duct 4, moisture carried by the hot and humid air is condensed when the hot and humid air flows through the evaporator 83, so that the hot and humid air becomes dry air, the dry air is heated when the hot and humid air flows through the condenser 82, so that the dry air becomes hot air, the hot air is blown into the inner cylinder 3, and clothes in the inner cylinder 3 are dried.

After clothes are dried, the fan 5 continues to run, but the compressor stops running, the condenser 82 does not heat air any more, cold air outside the box body 1 enters the drying air duct 4 along the air inlet pipeline 6 and the drainage pipeline 84 under the action of the fan 5, and then flows along the drying air duct 4 after being mixed with high-temperature gas in the drying air duct 4, when the mixed gas flows through the junction of the drying air duct 4 and the air outlet pipeline 7, a part of gas continues to flow into the inner cylinder 3 along the drying air duct 4, and a part of gas is discharged to the outside of the box body 1 along the air inlet pipeline 6, so that two circulation of inner and outer circulation is formed inside the box body 1, and the temperature in the box body 1 can be reduced as soon as possible.

Preferably, as shown in fig. 7, one end of the air outlet duct 7 extends to the front panel 11 of the case 1, and a second communication hole 111 is provided on the front panel 11, and the air outlet duct 7 communicates with the outside of the case 1 via the second communication hole 111.

Preferably, as shown in fig. 7 and 8, one end of the air outlet duct 7 is provided with an air deceleration structure 71 to reduce the speed of the air flow discharged from the air outlet duct 7.

Illustratively, as shown in fig. 7 and 8, the left end of the air outlet duct 7 is provided with a bell mouth, and the large-caliber end of the bell mouth communicates with the second communication hole 111 provided on the front panel 11, at which the gas deceleration structure 71 is formed.

Preferably, as shown in fig. 7, one end of the air intake duct 6 extends to the back plate 12 of the case 1, a third communication hole 121 is provided on the back plate 12, and the air intake duct 6 communicates with the outside of the case 1 via the third communication hole 121.

Preferably, as shown in fig. 7 and 9, one end of the air intake duct 6 is provided with a gas acceleration structure 61 to increase the speed of the gas flow entering the air intake duct 6.

Illustratively, as shown in fig. 7 and 9, the right end of the air outlet duct 7 is provided with a bell mouth, and the large-caliber end of the bell mouth communicates with a third communication hole 121 provided on the back plate 12, at which a gas speed increasing structure 61 is formed.

Preferably, as shown in fig. 7 and 9, the drying system of the present embodiment further includes a first electrically controlled valve 91 installed on the air intake duct 6, and the first electrically controlled valve 91 is used for controlling the on-off state of the air intake duct 6.

Preferably, as shown in fig. 7 and 8, the drying system of the present embodiment further includes a second electrically controlled valve 92 installed on the air outlet pipeline 7, where the second electrically controlled valve 92 is used to control the on-off state of the air outlet pipeline 7.

Those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims of the present utility model, any of the claimed embodiments may be used in any combination.

Thus far, the technical solution of the present utility model has 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 protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims

1. Drying system of drying equipment, drying system includes the stoving wind channel and installs fan on the stoving wind channel, its characterized in that, drying system still includes air inlet pipeline, air-out pipeline and is located the air pocket structure in the stoving wind channel, be provided with first communication hole on the stoving wind channel, air inlet pipeline's one end with drying equipment's box outside intercommunication, air inlet pipeline's the other end with the stoving wind channel intercommunication, air-out pipeline's one end with the outside intercommunication of box, air-out pipeline's the other end with first communication hole intercommunication, the air pocket structure is close to first communication hole sets up, the air pocket structure can be followed the air current that the stoving wind channel flows comes is blocked, in order to increase and get into the air flow of air-out pipeline.

2. The drying system of claim 1, wherein the air-catching structure is an air-catching opening provided at the other end of the air-out duct.

3. The drying system of the drying apparatus according to claim 2, wherein the aperture of the pocket is made smaller in the flow direction of the air flow.

4. A drying system of a drying apparatus according to claim 3, wherein the aperture of the pocket is gradually reduced in the flow direction of the air flow.

5. The drying system of a drying apparatus according to claim 1, wherein the first communication hole is located at a downstream end of the blower.

6. The drying system of a drying apparatus according to claim 1, wherein one end of the air outlet pipe extends to a front panel of the cabinet, a second communication hole is provided on the front panel, and the air outlet pipe communicates with the outside of the cabinet through the second communication hole.

7. The drying system of a drying apparatus according to claim 1, wherein one end of the air outlet duct is provided with a gas decelerating structure to reduce a speed of a gas flow discharged from the air outlet duct.

8. The drying system of a drying apparatus according to claim 1, wherein one end of the air intake duct extends to a back plate of the cabinet, a third communication hole is provided on the back plate, and the air intake duct communicates with the outside of the cabinet via the third communication hole.

9. The drying system of claim 1, wherein one end of the air inlet line is provided with a gas increasing structure to increase a speed of the air flow entering the air inlet line.

10. The drying system of claim 1, wherein the drying duct is provided with a fourth communication hole at an upstream end of the blower, and the fourth communication hole is communicated with the other end of the air intake duct and is disposed near an air intake end of the blower.

11. The drying system of a drying apparatus according to claim 1, wherein the drying system is a heat pump drying system including a drain line for discharging condensed water communicated with the drying duct, and the other end of the air intake line is communicated with the drying duct by means of the drain line.

12. The drying system of a drying apparatus according to any one of claims 1 to 11, further comprising a first electronically controlled valve installed on the air inlet duct, the first electronically controlled valve being for controlling an on-off state of the air inlet duct.

13. The drying system of a drying apparatus according to any one of claims 1 to 11, further comprising a second electronically controlled valve mounted on the air outlet duct for controlling the on-off state of the air outlet duct.

14. A drying apparatus comprising the drying system according to any one of claims 1 to 13.

15. The drying apparatus according to claim 14, wherein the drying apparatus is a dryer or a washing and drying integrated machine.