Condensation air duct of drying equipment and drying equipment

Abstract

The utility model relates to the technical field of clothes processing equipment, in particular to a condensation air duct of drying equipment and the drying equipment, and aims to solve the problem that the existing drying equipment is poor in drying efficiency due to poor condensation effect. Therefore, the condensation air duct is provided with an air inlet, an air outlet and a condensation channel used for communicating the air inlet with the air outlet, at least one part of the condensation channel is arranged to be a bent channel, and the bent channel extends in a curve mode in the direction from the air inlet to the air outlet. At least one part of the condensation channel is arranged to be the bent channel, the cooling effect can be improved, so that the drying efficiency is improved, specifically, the condensation channel in the prior art extends along a straight line and is short, the total length of the condensation channel can be increased in the same space by adopting the bent channel, and the cooling effect is improved. Therefore, the heat exchange stroke of air and cooling water is prolonged, the condensation effect is improved, and the drying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing treatment equipment, and particularly provides a condensation air duct of a drying device and the drying device. Background Art

[0002] A drying device refers to a machine that can dry clothes by using hot air. The drying device mainly includes an integrated washing and drying machine, a clothes dryer or a dryer, etc.

[0003] Taking the integrated washing and drying machine as an example, the integrated washing and drying machine mainly includes a box body, a clothing treatment cylinder and a drying system arranged in the box body. The drying system mainly includes a condensation air duct, a fan, an air outlet duct and a heating device arranged in the air outlet duct. The fan provides power to make air circulate between the clothing treatment cylinder, the condensation air duct and the air outlet duct. Under the action of the heating device, cold air is heated into hot air, and then enters the clothing treatment cylinder to exchange heat with wet clothes, taking away the moisture in the clothes to form relatively humid hot air, and then enters the condensation air duct. Through the condensation effect of the condensation air duct, the moisture in the relatively humid hot air is condensed into water, and the air after condensation becomes relatively dry cold air, and then is heated into dry hot air by the heating device and enters the next cycle, and so on until the drying program ends.

[0004] There are many kinds of condensation methods adopted by the condensation air duct. One of the more common methods is to use water as a cooling medium to exchange heat with the drying air, so that the moisture in the air is condensed and separated from the air. However, due to space limitations, the body space of the condensation air duct is limited, and the travel of heat exchange between the air and the cooling water is very short, resulting in poor condensation effect and thus poor drying efficiency.

[0005] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Utility Model

[0006] The utility model aims to solve the above technical problems, that is, to solve the problem that the existing drying device has poor drying efficiency due to poor condensation effect.

[0007] In a first aspect, the utility model provides a condensation air duct of a drying device. The condensation air duct has an air inlet, an air outlet and a condensation channel for connecting the air inlet and the air outlet. At least a part of the condensation channel is set as a bending channel, and the bending channel extends in a curve along the direction from the air inlet to the air outlet.

[0008] In the preferred technical solution of the condensation air duct of the drying device, the bending channel has a plurality of turning sections.

[0009] In the preferred technical solution of the condensation air duct of the above drying equipment, the turning section is arc-shaped.

[0010] In the preferred technical solution of the condensation air duct of the above drying equipment, the turning angle of the turning section is greater than 90°.

[0011] In the preferred technical solution of the condensation air duct of the above drying equipment, the turning angle of the turning section is 100° to 140°.

[0012] In the preferred technical solution of the condensation air duct of the above drying equipment, the starting point of the bent channel is located at the air inlet.

[0013] In the preferred technical solution of the condensation air duct of the above drying equipment, the ratio of the transverse dimension to the longitudinal dimension of the cross-section of the bent channel is 0.9 to 1.2.

[0014] In the preferred technical solution of the condensation air duct of the above drying equipment, the ratio of the length of the bent channel to the total length of the condensation channel is not less than 0.8.

[0015] In the preferred technical solution of the condensation air duct of the above drying equipment, the cross-section of the bent channel is circular, elliptical or quadrilateral with rounded corners.

[0016] In a second aspect, the present invention also provides a drying equipment, including the above condensation air duct.

[0017] In the case of adopting the above technical solution, by setting at least a part of the condensation channel of the condensation air duct of the present invention as a bent channel, it is beneficial to improve the cooling effect, thereby improving the drying efficiency. Specifically, the condensation channels in the prior art all extend in a straight line and are short in length. In this application, by adopting a bent channel, in the same space, the total length of the condensation channel can be increased to extend the travel of heat exchange between air and cooling water, thereby improving the condensation effect and further improving the drying efficiency.

[0018] Furthermore, by setting a plurality of turning sections in the present invention, the length of the condensation channel is made longer. In addition, it is more beneficial to make the air flow swing left and right in the bent channel.

[0019] Still further, by setting the turning section as arc-shaped in the present invention, it is beneficial to make the air flow pass through the turning section smoothly and reduce the resistance to the air flow.

[0020] Still further, by making the turning angle of the turning section greater than 90° in the present invention, it is beneficial to reduce the resistance to the air flow, so that the air flow passes through the turning section smoothly.

[0021] Furthermore, the present utility model further limits the turning angle of the turning section to 100° to 140°, which can not only enable the air flow to have good passability, but also help ensure that the condensation channel has sufficient length.

[0022] Furthermore, the present utility model limits the ratio of the transverse dimension to the longitudinal dimension of the cross-section of the bending channel to be between 0.9 and 1.2, making the transverse dimension and the longitudinal dimension of the bending channel relatively close or equal. The bending channel will not be too flat, which is more conducive to the rotation of the air flow in the bending channel, so that the air flow and the cooling water can perform more sufficient heat exchange, improving the condensation effect.

[0023] In addition, the drying device further provided by the present utility model based on the above technical solution includes the above condensation air duct, and thus has the technical effects of the above condensation air duct. Compared with the drying device before improvement, the drying efficiency of the drying device of the present utility model is higher. Description of the Drawings

[0024] The following describes the preferred embodiments of the present utility model with reference to the drawings, in which:

[0025] Figure 1 is a schematic assembly structure of the laundry treatment drum and the drying system of the washing and drying integrated machine of the present utility model Figure 1 ;

[0026] Figure 2 is a schematic assembly structure of the laundry treatment drum and the drying system of the washing and drying integrated machine of the present utility model Figure 2 ;

[0027] Figure 3 is a schematic structure of the laundry treatment drum of the washing and drying integrated machine of the present utility model Figure 1 ;

[0028] Figure 4 is a schematic structure of the second housing of the condensation air duct of the washing and drying integrated machine of the present utility model Figure 1 ;

[0029] Figure 5 is a schematic structure of the laundry treatment drum of the washing and drying integrated machine of the present utility model Figure 2 ;

[0030] Figure 6 is a schematic structure of the second housing of the condensation air duct of the washing and drying integrated machine of the present utility model Figure 2 .

[0031] List of Reference Numerals:

[0032] 1. Outer cylinder;

[0033] 2. Condensation air duct; 21. First housing; 22. Second housing; 23. Condensation channel; 211. Air inlet; 212. Air outlet; 213. Plate-like structure; 221. Water inlet; 222. Cooling water diversion groove; 231. Bending channel; 2311. Turning section.

[0034] 3. Fan;

[0035] 4. Air outlet duct; 41. Insertion interface;

[0036] 5. Filter component. Specific embodiments

[0037] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these 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. Those skilled in the art can adjust it as needed to adapt to specific application scenarios. For example, although the following content is described in combination with a washing and drying integrated machine, the technical solution of the present invention is also applicable to other types of drying equipment, such as a clothes dryer, etc. Such adjustments and changes to the application object do not deviate from the principle and scope of the present invention and should be limited within the protection scope of the present invention.

[0038] It should be noted that in the description of the present invention, the terms "upper", "lower", "top", "bottom", "left", "right" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "connected", "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0040] Based on the problem pointed out in the background technology that the existing washing and drying integrated machine has poor condensation effect, resulting in poor drying efficiency. The present invention provides a condensation air duct for a washing and drying integrated machine and a washing and drying integrated machine, aiming to increase the length of the condensation channel in a limited space to extend the travel of heat exchange between air and cooling water, thereby improving the condensation effect and further improving the drying efficiency.

[0041] Specifically, as Figure 1 andFigure 2 As shown, the present utility model provides a washing and drying integrated machine. The washing and drying integrated machine of the present utility model includes a box body (not shown in the figure), a laundry treatment cylinder and a drying system disposed in the box body. The drying system can supply hot air into the laundry treatment cylinder to dry the laundry in the laundry treatment cylinder.

[0042] Among them, the laundry treatment cylinder generally includes an outer cylinder 1 and an inner cylinder (not shown in the figure) rotatably installed in the outer cylinder 1. The laundry is placed in the inner cylinder. A driving motor is installed on the rear wall of the outer cylinder 1, and the output end of the driving motor is fixedly connected to the inner cylinder to drive the inner cylinder to rotate at a high speed.

[0043] As Figures 1 to 3 shown, the drying system of the present utility model includes a condensation air duct 2, a blower 3 and an air outlet duct 4, and the condensation air duct 2, the blower 3 and the air outlet duct 4 are connected in sequence.

[0044] Among them, the condensation air duct 2 has an air inlet 211, an air outlet 212 and a condensation channel 23 for connecting the air inlet 211 and the air outlet 212. The air inlet 211 is connected to the laundry treatment cylinder, specifically to the outer cylinder 1 of the laundry treatment cylinder. The air outlet 212 is connected to the suction port of the blower 3, and the discharge port of the blower 3 is connected to the air outlet duct 4. An inlet 221 for water is provided on the condensation air duct 2, and the inlet 221 is connected to a cooling water pipe (not shown in the figure) to supply cooling water into the condensation channel 23. A heating device (not shown in the figure) is provided in the air outlet duct 4, generally an electric heating device, such as a PTC heating device, etc.

[0045] When the drying program is executed, the blower 3 is started. Under the action of the blower 3, the wet air coming out of the laundry treatment cylinder enters the condensation channel 23 from the air inlet 211, then flows along the condensation channel 23 and exchanges heat with the cooling water in the condensation channel 23, thereby condensing the moisture in the wet air and making the air dry. The dry air flows out from the air outlet 212 of the condensation air duct 2 and then enters the blower 3 from the suction port of the blower 3. The air discharged from the blower 3 enters the air outlet duct 4, then flows along the air outlet duct 4, and is heated by the heating device in the air outlet duct 4 to become hot air, and then flows back into the laundry treatment cylinder to dry the laundry.

[0046] Preferably, as Figure 1 shown, the drying system of the present utility model further includes a filtering member 5. An insertion port 41 is provided on the air outlet duct 4, and at least a part of the filtering member 5 passes through the insertion port 41 and extends into the air outlet duct 4.

[0047] Among them, the filtering member 5 is disposed upstream of the heating device and is used to filter the air flow to intercept impurities such as lint carried by the air flow.

[0048] The filtering component 5 is installed in the air outlet duct 4 by means of plugging, which facilitates the removal of the filtering component 5 for cleaning.

[0049] Preferably, as Figures 1 to 3 shown, the condensation duct 2 is located behind the laundry treatment drum.

[0050] That is to say, the condensation duct 2 is located between the rear wall of the outer drum 1 and the back panel of the cabinet. Exemplarily, the condensation duct 2 is arranged in the vertical direction, the air inlet 211 is located at the lower part of the condensation duct 2, and the air outlet 212 is located at the upper part of the condensation duct 2.

[0051] Preferably, as Figure 1 and Figure 2 shown, the air outlet duct 4 is located above the laundry treatment drum, and the air outlet duct 4 extends along the axial direction of the laundry treatment drum.

[0052] That is to say, the air outlet duct 4 is located between the outer drum 1 and the top plate of the cabinet, and the air outlet duct 4 extends from the rear end of the outer drum 1 along the axial direction of the outer drum 1 to the front end of the outer drum 1.

[0053] It should be noted that a return air opening can be arranged at the top of the front end of the outer drum 1, and the air outlet end of the air outlet duct 4 is communicated with the return air opening. Alternatively, the return air opening can also be arranged on the window gasket, and the window gasket is arranged between the outer drum 1 and the panel of the cabinet. Such adjustments and changes to the specific installation position of the return air opening do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0054] In addition, it should also be noted that those skilled in the art can set the condensation duct 2 and the laundry treatment drum as two completely independent components in actual applications, and the two are communicated through a corrugated pipe or directly communicated. Alternatively, a part of the condensation duct 2 can also be integrally arranged with the laundry treatment drum, etc. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0055] Preferably, as Figures 2 to 6 shown, the condensation duct 2 of the present invention includes a first housing 21 and a second housing 22. The first housing 21 is arranged on the rear wall of the laundry treatment drum, and the first housing 21 is integrally arranged with the laundry treatment drum. The second housing 22 is connected to the first housing 21, and the first housing 21, the second housing 22 and the rear wall of the laundry treatment drum jointly enclose a condensation channel 23.

[0056] By integrally arranging a part of the condensation duct 2 with the laundry treatment drum, it is beneficial to increase the volume of the laundry treatment drum. In addition, it is also beneficial to reduce the processing cost.

[0057] Exemplarily, the first housing 21 is provided on the rear wall on the left side of the outer cylinder 1. The air inlet 211 is directly formed on the rear wall of the outer cylinder 1. The air outlet 212 is provided at the top of the first housing 21. The fan 3 is also fixedly installed at the top of the first housing 21. A part of the first housing 21 is an annular plate-like structure 213, and this plate-like structure 213 is perpendicular to the rear wall of the outer cylinder 1. The second housing 22 is buckled on the plate-like structure 213 of the first housing 21. The first housing 21, the second housing 22 and the rear wall of the outer cylinder 1 together enclose a condensation channel 23.

[0058] It should be noted that the first housing 21 and the second housing 22 can be set to be detachably fixedly connected, for example, fixedly connected by fasteners such as screws, or alternatively, the first housing 21 and the second housing 22 can be set to be non-detachable, for example, the first housing 21 and the second housing 22 are connected by a cladding method, etc. Such adjustments and changes to the specific connection method of the first housing 21 and the second housing 22 do not deviate from the principle and scope of the present invention and should be limited within the protection scope of the present invention.

[0059] Preferably, as Figures 2 to 6 shown, at least a part of the condensation channel 23 of the present invention is set as a curved channel 231, and the curved channel 231 curves and extends along the direction from the air inlet 211 to the air outlet 212.

[0060] By setting at least a part of the condensation channel 23 as a curved channel 231, it is beneficial to improve the cooling effect and thus improve the drying efficiency. Specifically, the condensation channels 23 in the prior art all extend linearly and have a short length. In this application, by adopting the curved channel 231, within the same space, the total length of the condensation channel 23 can be increased to extend the travel of heat exchange between the air and the cooling water, thereby improving the condensation effect and further improving the drying efficiency.

[0061] It should be noted that those skilled in the art can set the entire condensation channel 23 to be curved in actual application, or alternatively, a part of the condensation channel 23 can be set to be curved, for example, 50% or 80% etc. of the condensation channel 23 is set to be curved. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should be limited within the protection scope of the present invention.

[0062] In addition, it should also be noted that those skilled in the art can set the front part of the condensation channel 23 as a curved channel 231, or alternatively, the rear part of the condensation channel 23 can be set as a curved channel 231, or further, the middle part of the condensation channel 23 can be set as a curved channel 231, etc. Such flexible adjustments and changes also do not deviate from the principle and scope of the present invention and should be limited within the protection scope of the present invention.

[0063] Preferably, as Figures 2 to 6 shown, the ratio of the length of the curved channel 231 of the present utility model to the total length of the condensation channel 23 is not less than 0.8.

[0064] That is to say, at least 80% of the condensation channel 23 in the present application is set to be curved. For example, those skilled in the art can set the ratio of the length of the curved channel 231 to the total length of the condensation channel 23 to 0.85, 0.9, 0.95 or 1.0, etc.

[0065] Preferably, as Figures 2 to 6 shown, the starting point of the curved channel 231 of the present utility model is located at the air inlet 211.

[0066] That is to say, the condensation channel 23 starts to bend from the position of the air inlet 211.

[0067] Preferably, as Figures 2 to 6 shown, the ratio of the transverse dimension to the longitudinal dimension of the cross-section of the curved channel 231 of the present utility model is 0.9 to 1.2.

[0068] By limiting the ratio of the transverse dimension to the longitudinal dimension of the cross-section of the curved channel 231 between 0.9 and 1.2, the transverse dimension and the longitudinal dimension of the curved channel 231 are relatively close or equal. In this way, the curved channel 231 is not too flat, which is beneficial to making the air flow rotate in the curved channel 231, so that the air flow and the cooling water can conduct more sufficient heat exchange and improve the condensation effect.

[0069] Exemplarily, those skilled in the art can set the ratio of the transverse dimension to the longitudinal dimension of the cross-section of the curved channel 231 to 0.9, 1.0, 1.1 or 1.2, etc. in practical applications.

[0070] Preferably, as Figures 2 to 6 shown, the cross-section of the curved channel 231 of the present utility model is circular, elliptical or a quadrilateral with rounded corners.

[0071] Among them, the quadrilateral with rounded corners can be a square or a rectangle, and the four corners of the quadrilateral are all set as rounded corners, which is beneficial to the smooth rotational flow of the air flow.

[0072] Preferably, as Figures 2 to 6 shown, the curved channel 231 of the present utility model has a plurality of turning sections 2311.

[0073] By arranging a plurality of turning sections 2311, the length of the condensation channel 23 is longer. In addition, it is more beneficial to make the air flow swing left and right in the curved channel 231.

[0074] Exemplarily, as Figure 5As shown, the bending channel 231 of the present utility model has two turning sections 2311. The air flow coming in from the air inlet 211 first flows along the bending channel 231 towards the upper left, then after passing through the first turning section 2311, it flows towards the upper right, and then after passing through the second turning section 2311, it flows towards the upper left. That is to say, the entire bending channel 231 is approximately in an S-shaped structure.

[0075] It should be noted that the number of the turning sections 2311 is not limited to the two mentioned above. For example, the number of the turning sections 2311 can also be set to three, four, etc.

[0076] Preferably, as Figures 2 to 6 shown, the turning section 2311 of the present utility model is arc-shaped.

[0077] By setting the turning section 2311 to be arc-shaped, it is beneficial to enable the air flow to smoothly pass through the turning section 2311 and reduce the resistance to the air flow.

[0078] It should be noted that two adjacent turning sections 2311 can be connected through a straight section, or two adjacent turning sections 2311 can also be directly connected.

[0079] Preferably, as Figures 2 to 6 shown, the turning angle of the turning section 2311 of the present utility model is greater than 90°.

[0080] By making the turning angle of the turning section 2311 greater than 90°, it is beneficial to reduce the resistance to the air flow, thereby enabling the air flow to smoothly pass through the turning section 2311.

[0081] Preferably, as Figures 2 to 6 shown, the turning angle of the turning section 2311 of the present utility model is 100° to 140°.

[0082] By further limiting the turning angle of the turning section 2311 to 100° to 140°, it can not only enable the air flow to have good passability, but also be beneficial to ensuring that the condensation channel 23 has sufficient length.

[0083] Exemplarily, those skilled in the art can limit the turning angle of the turning section 2311 of the bending channel 231 to 100°, 110°, 120°, 130°, 140°, etc. in practical applications.

[0084] Preferably, as Figure 4 and Figure 6 shown, cooling water diversion grooves 222 are provided on the inner wall of the condensation channel 23 of the present utility model, and the cooling water diversion grooves 222 extend in a curve.

[0085] By arranging the cooling water diversion groove 222 to extend in a curve, the flow path of the cooling water can be prolonged, which is beneficial to further improving the condensation effect.

[0086] Preferably, as Figures 2 to 6 shown, the cooling water diversion groove 222 of the present utility model extends along the bending shape of the bending channel 231.

[0087] By making the cooling water diversion groove 222 extend along the bending shape of the bending channel 231, it is more beneficial for the air flow to fully exchange heat with the cooling water and improve the condensation effect.

[0088] Preferably, as Figures 2 to 6 shown, the condensation channel 23 of the present utility model has a first inner wall and a second inner wall arranged oppositely. The air inlet 211 is arranged on the first inner wall, and the cooling water diversion groove 222 is arranged on the second inner wall. The cooling water diversion groove 222 extends to a position opposite to the air inlet 211.

[0089] By making the cooling water diversion groove 222 extend to a position opposite to the air inlet 211, on the one hand, the flow path of the cooling water becomes longer. On the other hand, the air flow coming in from the air inlet 211 directly impacts the cooling water, which can break up the cooling water and is more beneficial for heat exchange with the air flow, thereby improving the condensation effect.

[0090] Exemplarily, the rear wall of the outer cylinder 1 is the first inner wall, the inner wall of the second housing 22 is the second inner wall. The top of the second housing 22 is provided with a water inlet 221 for communicating with a cooling water pipe. The top end of the cooling water diversion groove 222 is communicated with the water inlet 221, and the bottom end of the cooling water diversion groove 222 extends to the opposite side of the air inlet 211. The cooling water in the cooling water pipe enters the condensation channel 23 from the water inlet 221 and then flows along the cooling water diversion groove 222 towards the bottom of the condensation channel 23.

[0091] Those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims of this application, any of the claimed embodiments can be used in any combination.

[0092] So far, the technical solutions of the present utility model have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present utility model.

Claims

1. A condensation air duct of a drying device, characterized in that, The condensation air duct has an air inlet, an air outlet, and a condensation channel for connecting the air inlet and the air outlet. At least a part of the condensation channel is arranged as a curved channel, and the curved channel extends in a curved manner along the direction from the air inlet to the air outlet; The curved channel has a plurality of turning segments; The ratio of the transverse dimension to the longitudinal dimension of the cross-section of the curved channel is 0.9 to 1.

2.

2. The condensation air duct according to claim 1, wherein The turning segment is arc-shaped.

3. The condensation air duct according to claim 1, characterized in that, The turning angle of the turning segment is greater than 90°.

4. The condensation air duct according to claim 3, wherein The turning angle of the turning segment is 100° to 140°.

5. The condensing air duct according to claim 1, characterized in that, The starting point of the curved channel is located at the air inlet.

6. The condensing air duct according to claim 1, wherein The ratio of the length of the curved channel to the total length of the condensation channel is not less than 0.

8.

7. The condensation air duct according to any one of claims 1 to 6, characterized in that, The cross-section of the curved channel is circular, elliptical or quadrilateral with rounded corners.

8. A drying device, characterized in that, Comprising the condensation air duct according to any one of claims 1 to 7.

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