CN114790630A - Washing and drying integrated machine and condensation air duct thereof - Google Patents

Abstract

The invention provides a washing and drying integrated machine and a condensation air duct thereof, wherein both ends of the condensation air duct are respectively provided with an air inlet and an air outlet, the air outlet is positioned above the air inlet, the condensation air duct comprises a first section of air duct which extends downwards from one end with the air inlet in an arc shape, and a second section of air duct which extends upwards from the other end of the first section of air duct in an arc shape to one end of the air outlet, the second section of air duct comprises a third section of air duct connected with the first section of air duct, and a fourth section of air duct which extends downwards from the other end of the third section of air duct in an arc shape to one end of the air outlet, a flow guide structure for avoiding condensation water accumulation at the air outlet is also arranged on the condensation air duct, and a condensation water atomization spray head is arranged at the position of the condensation air duct, which is close to the air inlet; the invention prolongs the retention time of the damp and hot air in the condensation air duct by increasing the length of the air duct, further improves the heat exchange effect by combining the treatment of the atomization nozzle on the condensed water, and simultaneously cleans the thread scraps in the damp and hot air.

Description

A washing and drying machine and its condensing air duct

technical field

The invention belongs to the field of washing machines, and particularly relates to an integrated washing and drying machine and a condensing air duct thereof.

Background technique

The condensing air duct used in the existing dry-cleaning all-in-one machine is a vertical short air duct. When the hot and humid gas passes through the air duct, the condensed water and the air cannot conduct sufficient heat exchange. Although dispersing the condensed water into water mist can improve the heat exchange efficiency, However, because the air duct is short, the water mist may be carried away by the wind into the fan or into the drum, causing damage to the fan or entering the drum to wet the clothes again. At present, the washing and drying machine filters and removes the lint through the filter screen. With the use of the user, the filtering ability of the filter screen decreases, resulting in incomplete filtration; or the wind resistance increases due to the blockage of the filter screen by lint.

The U.S. patent for invention with publication number US20200299892A1 discloses an air duct with a horseshoe-shaped structure embedded in the outer cylinder. Both ends of the air duct are respectively provided with an air inlet, and the air outlet is arranged in the middle of the horseshoe-shaped structure. The drying air volume and heat exchange capacity shorten the drying time, and the heat exchange efficiency is further improved by arranging washing nozzles in the air duct. Although the above solution increases the drying air volume and shortens the drying time, the air duct is embedded in the air duct. Inside the outer cylinder, the space inside the outer cylinder is occupied; although the two shorter air ducts increase the heat exchange air volume, the lengths of the two air ducts are both short and cannot adequately exchange heat for the hot and humid air; further, Although the improvement of heat exchange efficiency and the cleaning of air ducts can be achieved by washing the nozzles, the nozzles are set at a high position, which cannot achieve sufficient heat exchange with the air, and cannot effectively remove lint.

The Chinese invention patent with the application number of 202010924444.X discloses a drum washing machine with a drying condensation system, and specifically discloses a condensation channel with a condensation water storage cavity, including a region one composed of an outer cylinder and a condensation plate. , the high-temperature humid and hot air flows from the bottom to the top in the first area; the second area consists of the condensation plate and the condensation cover, the condensed water is stored and flows in the second area; and the condensed water flows from the condensation plate near the air outlet. It is sprayed in the form of a water column to improve the heat exchange efficiency; although the above scheme improves the heat exchange efficiency through the secondary use of the condensed water, the condensed water outlet is set close to the air outlet, and the contact time and contact area between the hot and humid air and the water column are small. , the heat exchange efficiency cannot be improved very well, and the air ducts in the above scheme are short air ducts arranged vertically in the upper and lower directions, the heat exchange time of the moist and hot air is relatively low, and the heat exchange efficiency is relatively poor.

The present invention has been made in view of this.

SUMMARY OF THE INVENTION

In order to solve the above problems in the prior art, the present invention discloses an integrated washing and drying machine and its condensing air duct. A section of the air duct and the condensing air duct of the second section of the air duct extending upward in an arc shape from the other end of the first section of the air duct to the air outlet prolong the residence time of the hot and humid air in the condensing air duct and improve the heat exchange efficiency.

In order to achieve the above object, a first aspect of the present invention provides a condensing air duct of an integrated washing and drying machine, comprising an air inlet and an air outlet respectively arranged at both ends of the condensing air duct, and the air outlet is located at the end of the air inlet. Above, the condensation air duct includes:

The first air duct: the first air duct extends downward in an arc shape from the end of the condensing air duct with the air inlet;

The second section of the air duct: connected to the first section of the air duct, extending upward in an arc shape from the other end of the first section of the air duct to the end of the condensing air duct with the air outlet.

In the above scheme, after the hot and humid air in the condensing air duct enters the condensing air duct from the air inlet, it goes through two stages of downward flow and upward flow in turn. The water in the hot and humid air can condense faster, and the longer air duct extends The residence time of hot and humid air in the air duct improves the heat exchange efficiency.

Further, the second section of the air duct includes,

A third section of air duct, the third section of air duct extends upward in an arc shape from the other end of the first section of air duct;

The fourth section of the air duct, one end of the fourth section of the air duct is connected to the other end of the third section of the air duct, and extends downward in an arc shape from the other end of the third section of the air duct to the condensation The air duct has one end of the air outlet; the air outlet is arranged at the other end of the fourth section of the air duct.

The above scheme further extends the length of the condensing air duct, prolongs the residence time of the hot and humid air in the air duct, and improves the heat exchange efficiency.

Further, the first section of air duct and the second section of air duct are smoothly connected.

The smooth connection of the first air duct and the second air duct reduces the wind resistance of hot and humid air flowing in the air duct, reduces the noise during drying, and improves the air supply efficiency.

Preferably, the first section of air duct and the second section of air duct are two arcs with the same center position.

In the above preferred solution, the first section of air duct and the second section of air duct are connected to form a section of superior arc, which further reduces wind resistance and facilitates assembly.

Further, the condensing air duct also includes a diversion structure, and the diversion structure is arranged on the inner ring wall of the condensing air duct, and is used to guide the condensed water in the other end of the fourth section of the air duct to the first air duct. A position below the other end of the fourth-stage air duct in the third-stage air duct.

Further, the diversion structure includes a diversion groove, and the diversion groove is recessed downward from the inner side of the inner ring wall at the upper end of the fourth-stage air duct and the third-stage air duct;

The bottom surface of the guide groove is an inclined surface, which is inclined downward from the other end of the fourth-stage air duct to the third-stage air duct.

The hot and humid air is discharged from the air outlet and enters the heating fan, so the other end of the fourth-stage air duct is often easy to accumulate condensed water. The diversion groove in the above scheme can prevent the condensed water from accumulating near the air outlet, and further improve the condensation of the condensing air duct. Effect.

Further, the flow guiding structure is close to the installation side of the condensation air duct, or is close to the other side opposite to the installation side of the condensation air duct.

Further, the condensation air duct is provided with a condensation water atomizing nozzle near the air inlet.

The atomizing nozzle can make the condensed water disperse more evenly, improve the contact area between the condensed water and the hot and humid air, and improve the heat exchange efficiency. The mixing time of the humid and hot air realizes the sufficient heat exchange between the condensed water and the humid and hot air, and also prevents the water mist from entering the heating fan with the dry air and causes damage to the fan; it can also clean the lint in the humid and hot air.

Further, a drain port is provided at the lowest part of the condensation air duct, and the water in the hot and humid air condenses into water droplets during the condensation process, and flows along the inner wall of the condensation air duct to the drain port and is discharged from the drain port.

Further, a condensed water channel is also provided outside the condensing air duct, and a condensed water inlet and a condensed water outlet are communicated with the condensed water channel.

Further condensed water inlet and condensed water outlet are respectively arranged at both ends of the condensed water passage.

The condensed water inlet and the condensed water outlet are arranged at both ends of the condensed water channel, so that the condensed water can stay in the condensed water channel for a longer time and improve the heat exchange efficiency.

A second aspect of the present invention provides an integrated washing and drying machine, which has the condensation air duct described in the above solution.

Further, the washer-drying machine includes a horizontal outer cylinder and a heating fan, and the heating fan is located above the outer cylinder;

The condensing air duct is installed at the rear of the bottom of the outer cylinder and extends along the circumferential direction of the bottom of the cylinder. The bottom of the outer cylinder is provided with a cylinder air outlet facing the rear side. It is arranged on the side of the condensing air duct where the outer cylinder is installed, and the air inlet of the condensing air duct is connected with the air outlet of the outer cylinder;

The air inlet of the heating fan is connected with the air outlet of the condensing air duct for heating the condensed drying air and introducing it into the outer cylinder.

In the above solution, the laterally placed outer cylinder includes a horizontally laterally placed outer cylinder and an inclined laterally placed outer cylinder.

Further, the end of the condensing air duct with the air outlet is also provided with a connection structure matched with the fan. An assembly part extending outward from one side of the installation of the condensing air duct, the air outlet is arranged on the assembly part, and the air inlet of the heating fan is connected with the air outlet arranged on the assembly part.

Further, the condensation air duct is extended along the outer peripheral edge of the bottom of the outer cylinder.

The beneficial effects of the invention are as follows: by increasing the length of the air duct, the residence time of the hot and humid air in the condensing air duct is prolonged; in combination with the dispersing treatment of the condensed water by the condensed water atomizing nozzles arranged near the air inlet, the condensed water is increased. At the same time, the contact area between the condensed water and the moist and hot air is prolonged, and the heat exchange efficiency is improved; and the contact area of the atomized condensed water and the humid and hot air is larger, which improves the heat exchange effect and also Cleaned up the lint mixed in the hot and humid air; by setting a diversion structure that guides the condensed water at one end of the air outlet of the condensing air duct to a position lower than one end of the air outlet of the condensing air duct, the accumulation of condensed water near the air outlet is avoided, improving the performance of the air outlet. The condensing effect of the condensing air duct is improved.

Description of drawings

The accompanying drawings, as a part of the present invention, are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a structural diagram of the condensing air duct of the integrated washing and drying machine.

FIG. 2 is a front view of the condensation air duct of the integrated washing and drying machine.

FIG. 3 is a cross-sectional view at A-A of the condensation air duct of the integrated washing and drying machine.

FIG. 4 is an assembly diagram of the integrated washing and drying machine and a condensing air duct.

In the figure: 1. Condensing air duct; 11. The first air duct; 12. The second air duct; 13. The third air duct; 14. The fourth air duct; 2. Air inlet; 3. Air outlet 4. Diversion structure; 5. Condensed water atomizing nozzle; 6. Drainage outlet; 7. Connection structure; 71. Transition air duct; 72. Assembly part; 8. Inner ring wall; 9. Outer cylinder.

Detailed ways

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, those skilled in the art can understand that the following embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a It is directly connected or indirectly connected through an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

Example 1

As an embodiment of the present invention, this embodiment provides a condensing air duct 1 of an all-in-one washing and drying machine, including an air inlet 2 and an air outlet 3 arranged at both ends of the condensing air duct 1, and the air outlet 3 is located above the air inlet 2 .

In this embodiment, the condensing air duct 1 includes a first-stage air duct 11 and a second-stage air duct 12 that communicate with each other. The first-stage air duct 11 is an arc from the end of the condensing air duct 1 with the air inlet 2 The second-stage air duct 12 is connected to the first-stage air duct 11 and extends upward in an arc shape from the other end of the first-stage air duct 11 to the end of the condensing air duct 1 with the air outlet 3 .

Further, the first-stage air duct 11 and the second-stage air duct 12 are smoothly connected, which reduces the wind resistance of the hot and humid air flowing in the air duct, and also reduces noise.

In the above solution, the extension directions of the first-stage air duct 11 and the second-stage air duct 12 are opposite, which increases the length of the air duct and improves the heat exchange efficiency.

Further, the condensation air duct 1 is provided with a condensation water atomizing nozzle 5 near the air inlet 2 .

By arranging the condensed water atomizing nozzle 5 near the air inlet 2, the condensed water mist will move with the flow of the humid and hot air, prolonging the mixing time of the condensed water and the humid and hot air, and the contact between the atomized condensed water and the humid and hot air The area is larger, which improves the heat exchange effect; at the same time, the condensed water spray can adhere to the wire chips, and the water in the hot and humid air is further condensed on the wire chips during the heat exchange process. Falling in the air duct, the condensed water is discharged from the drain port 6, and the cleaning of the lint in the humid and hot air is realized.

Further, the condensing air duct 1 is provided with a drain port 6 at the lowest position, and the drain port 6 communicates with the interior of the air duct.

Embodiment 2

As another embodiment of the present invention, this embodiment provides a condensing air duct 1 of an all-in-one washing and drying machine, as shown in FIG. 3 is located above the air inlet 2.

In this embodiment, the condensing air duct 1 includes a first-stage air duct 11 and a second-stage air duct 12 that communicate with each other. The first-stage air duct 11 is an arc from the end of the condensing air duct 1 with the air inlet 2 The second-stage air duct 12 is connected to the first-stage air duct 11 and extends upward in an arc shape from the other end of the first-stage air duct 11 to the air outlet 3 on the condensing air duct 1. one end.

Further, as shown in FIG. 2 , the second-stage air duct 12 includes a third-stage air duct 13 and a fourth-stage air duct 14 that are connected in sequence, and one end of the third-stage air duct 13 is connected to the first-stage air duct 11 , and extending upward from the other end of the first section of air duct 11 in an arc shape;

One end of the fourth-stage air duct 14 is connected to the other end of the third-stage air duct 13, and extends downward in an arc shape from the other end of the third-stage air duct 13 to the place where the condensing air duct 1 has the air outlet 3. One end is obtained, and the air outlet 3 is arranged at the other end of the fourth section of the air duct 14 .

Further, the first section of air duct 11, the third section of air duct 13 and the fourth section of air duct 14 are smoothly connected, which reduces the wind resistance of hot and humid air flowing in the air duct, and also reduces noise.

In the above scheme, the extension directions of the first section of air duct 11 and the second section of air duct 12 are opposite, which increases the length of the air duct and improves the heat exchange efficiency; the extension of the third section of air duct 13 and the fourth section of air duct 14 The direction is reversed, further increasing the length of the air duct.

Further, the condensation air duct 1 is provided with a condensation water atomizing nozzle 5 near the air inlet 2 .

By arranging the condensed water atomizing nozzle 5 near the air inlet 2, the condensed water mist will move with the flow of the humid and hot air, prolonging the mixing time of the condensed water and the humid and hot air, and the contact between the atomized condensed water and the humid and hot air The area is larger, which improves the heat exchange effect; at the same time, the condensed water spray can adhere to the wire chips, and the water in the hot and humid air is further condensed on the wire chips during the heat exchange process. Falling in the air duct, the condensed water is discharged from the drain port 6, and the cleaning of the lint in the humid and hot air is realized.

Further, the condensing air duct 1 is provided with a drain port 6 at the lowest position, and the drain port 6 communicates with the interior of the air duct.

Embodiment 3

As another embodiment of the present invention, this embodiment provides a condensing air duct 1 of an all-in-one washing and drying machine, which has the same structure as the condensing air duct 1 described in the second embodiment, except that it also includes the condensing air duct 1 shown in FIG. 3 The diversion structure 4.

In this embodiment, in order to prevent the condensed water at the air outlet 3 from being unable to be discharged and affecting the condensation effect, the condensed water in the other end of the fourth-stage air duct 14 is further provided on the condensing air duct 1 to guide the condensed water at the other end of the fourth-stage air duct 14 to the The diversion structure 4 in the third-stage air duct 13 is lower than the other end of the fourth-stage air duct 14; The inner side of the inner ring wall 8 between the air ducts 14 is recessed downward.

The above scheme realizes the transfer of the condensed water accumulated at the air outlet 3 by setting the diversion structure 4, and the diversion structure 4 is communicated with the condensing air duct 1, which does not affect the condensation effect of the condensing air duct 1, and will not The direction of flow is opposite to that of the hot and humid air, so that the condensed water cannot be discharged.

Further, the bottom surface of the diversion groove is an inclined surface extending from the other end of the fourth pipe section to the third pipe section and inclined downward, so as to further improve the diversion effect of the diversion groove.

Further, the guide structure 4 is close to the installation side of the condensation air duct 1 , or is close to the other side opposite to the installation side of the condensation air duct 1 .

Embodiment 4

As another embodiment of the present invention, this embodiment provides a condensing air duct 1 of an all-in-one washing and drying machine, which has the structure of the condensing air duct 1 described in the third embodiment. A condensed water channel is provided, and a condensed water inlet and a condensed water outlet are communicated with the condensed water channel.

Further, the condensed water inlet and the condensed water outlet are respectively provided at both ends of the condensed water passage.

The condensed water inlet and the condensed water outlet are arranged at both ends of the condensed water channel, so that the condensed water can stay in the condensed water channel for a longer time and improve the heat exchange efficiency.

Further, the condensed water outlet is connected to the condensed water atomizing nozzle 5 .

In the above solution, by connecting the condensed water outlet with the condensed water atomizing nozzle 5, the secondary heat exchange of the condensed water is realized, the heat exchange efficiency is improved, and the water resources are saved.

Embodiment 5

As an embodiment of the present invention, this embodiment provides an all-in-one washing and drying machine, which includes a horizontal outer cylinder 9, a heating fan, and the condensing air duct 1 described in the third embodiment, and the heating fan is located in the outer cylinder 9. above.

In this embodiment, the condensing air duct 1 is installed at the rear of the bottom of the outer cylinder 9 and extends along the circumferential direction of the bottom of the cylinder. The air inlet 2 is arranged on the side where the condensing air duct 1 is installed with the outer cylinder 9, and the air inlet 2 of the condensing air duct 1 is connected with the air outlet of the outer cylinder 9;

The air inlet 2 of the heating fan is connected to the air outlet 3 of the condensing air duct 1 for heating the condensed drying air and introducing it into the outer cylinder 9 .

Further, the drain port 6 on the condensing air duct 1 is connected with the drain line of the washer-drying machine; the condensed water atomizing nozzle 5 is connected with the water inlet line of the washer-drying machine.

In order to improve the connection stability of the condensing air duct 1 and the heating fan, the end of the condensing air duct 1 with the air outlet 3 is further provided with a connection structure 7 matched with the fan. One end of the transition air duct 71 extending in the horizontal direction, and a fitting portion 72 extending outward from the side where the condensing air duct 1 and the outer cylinder 9 are installed on the transition air duct 71, and the air outlet 3 is provided in the assembly. On the part 72 , the air inlet 2 of the heating fan is connected with the air outlet 3 provided on the assembly part 72 .

Further, the condensation air duct 1 is extended along the outer peripheral edge of the bottom of the outer cylinder 9 .

In the above solution, the laterally placed outer cylinder 9 may be a horizontally laterally placed outer cylinder 9 or an inclined laterally placed outer cylinder 9 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Without departing from the scope of the technical solution of the present invention, when the technical content indicated above can be used to make some changes or modifications to equivalent examples of equivalent changes, the implementations in the above-mentioned examples can also be further combined or replaced, but any Without departing from the content of the technical solution of the present invention, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the solution of the present invention.

Claims (10)

1. a condensing air duct of an integrated washing and drying machine, comprising an air inlet and an air outlet respectively arranged at both ends of the condensing air duct, and the air outlet is located above the air inlet, it is characterized in that, the condensation Air ducts include, The first section of the air duct, the first section of the air duct extends downward in an arc shape from the end of the condensing air duct with the air inlet; The second section of the air duct is connected to the first section of the air duct and extends upward in an arc shape from the other end of the first section of the air duct to the end of the condensing air duct with the air outlet. 2. The condensing air duct of the washer-drying machine according to claim 1, wherein the second section of the air duct comprises: A third section of air duct, the third section of air duct extends upward in an arc shape from the other end of the first section of air duct; The fourth section of the air duct, one end of the fourth section of the air duct is connected to the other end of the third section of the air duct, and extends downward in an arc shape from the other end of the third section of the air duct to the condensation The air duct has one end of the air outlet; the air outlet is arranged at the other end of the fourth section of the air duct. 3 . The condensing air duct of claim 1 , wherein the first section of the air duct and the second section of the air duct are smoothly connected. 4 . 4. The condensing air duct of the washer-drying machine according to claim 2, characterized in that, further comprising: The diversion structure is arranged on the inner ring wall of the condensing air duct, and is used to guide the condensed water in the other end of the fourth-stage air duct to the third-stage air duct lower than the fourth-stage air duct. The location of the other end of the air duct. 5 . The condensing air duct of an all-in-one washer-drying machine according to claim 4 , wherein the diversion structure comprises a diversion groove, and the diversion groove is formed from the fourth air duct and the third air duct. 6 . The inner side of the inner ring wall of the upper end of the channel is recessed downward; Preferably, the bottom surface of the guide groove is an inclined surface, which is inclined downward from the other end of the fourth-stage air duct toward the third-stage air duct. 6 . The condensing air duct of claim 4 , wherein the air guide structure is close to the installation side of the condensing air duct, or is close to the opposite side to the installation side of the condensing air duct. 7 . The other side. 7. The condensing air duct of any one of claims 1-6, wherein the condensing air duct is provided with a condensed water atomizing nozzle near the air inlet. 8. An all-in-one washing and drying machine, comprising a horizontally placed outer cylinder and a heating fan, wherein the heating fan is located above the outer cylinder, characterized in that the washing and drying integrated machine has the method described in any one of claims 1-7. condensing air duct. 9 . The integrated washing and drying machine according to claim 8 , wherein the condensing air duct is installed at the rear of the bottom of the outer cylinder and extends along the circumferential direction of the bottom of the cylinder. 10 . A cylinder air outlet facing the rear side is provided, the air inlet of the condensing air duct is arranged on the side of the condensing air duct where the outer cylinder is installed, and the air inlet of the condensing air duct is connected with the cylinder air outlet of the outer cylinder; The air inlet of the heating fan is connected with the air outlet of the condensing air duct for heating the condensed drying air and introducing it into the outer cylinder. 10 . The integrated washing and drying machine according to claim 9 , wherein the condensing air duct extends along the outer peripheral edge of the bottom of the outer cylinder. 11 .

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