WO2014198054A1

WO2014198054A1 - Dryer

Info

Publication number: WO2014198054A1
Application number: PCT/CN2013/077221
Authority: WO
Inventors: 黄华; 黄琳; 张晓亮
Original assignee: 无锡小天鹅股份有限公司
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2014-12-18

Abstract

A dryer comprises a shell, an inner cylinder which is rotatably arranged in the shell around its axis, an outer cylinder arranged in the shell and outside the inner cylinder, the outer cylinder and the inner cylinder are disposed apart thereby forming an air channel there between, and an air circulation driver, which is arranged in the shell for driving the air circulation inside the inner cylinder and the air channel.

Description

Dryer

The present invention relates to the field of drying technology, and in particular to a clothes dryer. Background technique

In the existing dryers, straight-line, condensing or heat pumping is often used for drying clothes. The in-line type clothes dryer has a simple structure and is easy to implement, but the high temperature and high humidity gas discharged affects the environment, and the exhaust heat can not be effectively utilized. At the same time, the temperature of the cylinder is high, and the heat lost outside is energy loss, which is increased. The energy consumption of the inline dryer. The condensing dryer is an inner circulation duct, and there is no exhaust gas. However, a condenser such as a condenser is separately provided to cool the high-temperature and high-humidity gas. At the same time, the heat dissipation of the cylinder during drying is still an energy loss, and the condensing dryer is added. Machine energy consumption. The heat pump type is relatively energy-saving, but the heat pump structure is relatively complicated and the design cost is high. The same can not solve the energy loss of the high-temperature heat dissipation of the cylinder during drying, and also has the disadvantage of high energy consumption.

In addition, in the existing clothes dryer, the air ducts are basically separate sub-components, which are placed outside the drying cylinder. The air passage has a long circulation path, large resistance, and takes up a lot of space, and the noise is easy to radiate outward. Circulating fans are often subject to space constraints. Small-diameter centrifugal impellers are used. In order to meet the drying air volume, the rotational speeds are set relatively high, and the power consumption and noise are relatively high. Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Accordingly, it is an object of the present invention to provide a clothes dryer which has a simple structure, a good drying effect and low energy consumption.

A clothes dryer according to the present invention, comprising: a housing; an inner cylinder, the inner cylinder being rotatably disposed around the axis thereof; the outer cylinder, the outer cylinder being disposed in the housing and disposed at the An outer surface of the inner cylinder, the outer cylinder and the inner cylinder are spaced apart to form a air passage between the outer cylinder and the inner cylinder; an air circulation drive, the air circulation drive is disposed at The inside of the housing is for driving air in the inner cylinder to circulate air in the air passage.

The clothes dryer according to the embodiment of the present invention has the following advantages: The air duct is defined by the inner and outer cylinders, so that the dryer is compact, compact, small in space and low in wind resistance.

Further, the clothes dryer according to the present invention may further have the following additional technical features:

In one embodiment of the invention, the air circulation drive is disposed adjacent the bottom of the inner cylinder.

In an embodiment of the present invention, an air inlet is formed in the vicinity of the bottom wall of the inner cylinder, and an air outlet is formed in the vicinity of the open end of the outer cylinder and the inner cylinder, and the air outlet is respectively associated with the air outlet The inside of the inner cylinder communicates with the air duct.

In an embodiment of the present invention, a semiconductor refrigerating sheet is disposed in the air duct, the semiconductor refrigerating sheet has oppositely disposed hot end faces and cold end faces, and a thermal end face of the semiconductor refrigerating sheet is disposed in the inner tube On the peripheral wall, the cold end surface of the semiconductor cooling fin faces the inside of the air duct.

In an embodiment of the invention, the semiconductor refrigerating sheet is annularly sleeved outside the peripheral wall of the inner cylinder. In an embodiment of the invention, the air circulation driver is an axial fan, and the axial fan is disposed outside The inner wall surface of the bottom wall of the cylinder.

In an embodiment of the invention, the central axis of the inner cylinder coincides with the central axis of the outer cylinder.

In an embodiment of the invention, the central axis of the inner cylinder is at a predetermined angle with the horizontal plane.

In an embodiment of the invention, the clothes dryer further includes a drain pipe disposed on the outer cylinder and communicating with the air passage for discharging condensed water in the air duct.

In one embodiment of the invention, the drain is connected to the outermost portion of the horizontal level.

The additional aspects and advantages of the invention will be set forth in part in the description which follows. DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

Figure 1 is a perspective view of a clothes dryer in accordance with one embodiment of the present invention;

Figure 2 is a schematic illustration of a clothes dryer in accordance with one embodiment of the present invention;

Figure 3 is a partial cross-sectional view of an embodiment of the present invention;

Figure 4 is a cross-sectional view of the inner and outer cylinders;

Figure 5 is a schematic illustration of a clothes dryer in accordance with one embodiment of the present invention, with arrows schematically showing the general direction of air flow.

Description of the reference signs:

Dryer 100;

Housing 1 ;

Inner cylinder 2 ;

Outer tube 3 ;

Door cover 4;

Semiconductor refrigeration sheet _5;

Air circulation drive 6;

Wind tunnel 7, air inlet 71, air outlet 72;

Drive component 8 ;

Drain pipe 91, support roller 92, lifting rib 93.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative only and not to limit the invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "previous", "after",

Directions of indications such as "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and the simplified description, and does not indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the invention.

It should be noted that the terms "first" and "second" are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may explicitly or implicitly include one or more of the features. Further, in the description of the present invention, "multiple" means two or more unless otherwise stated.

A clothes dryer 100 according to an embodiment of the present invention will now be described with reference to Figs.

The clothes dryer 100 according to an embodiment of the present invention includes a casing 1, an inner cylinder 2, an outer cylinder 3, a door cover 4, a semiconductor refrigerating sheet 5, and an air circulation driver 6. The outer cylinder 3 and the inner cylinder 2 are spaced apart by a certain distance to form a duct 7 between the outer cylinder 3 and the inner cylinder 2. The air circulation driver 6 is provided in the casing 1 for driving the air in the inner cylinder 2 and the air in the duct 7 to circulate.

In some embodiments of the invention, the air circulation drive 6 is disposed adjacent the bottom of the inner cylinder 2.

The inner cylinder 2 is rotatably disposed in the casing 1 about its axis (i.e., the rotation axis of the inner cylinder 2) and an air inlet port 71 is formed near the bottom wall of the inner cylinder 2, as shown in Figs. Specifically, the inner cylinder 2 may be formed in a cylindrical shape and include a bottom wall and a peripheral wall which may be vertically disposed at an outer peripheral edge of the bottom wall, wherein the air inlet 71 is formed in the vicinity of the bottom wall. In a specific embodiment of the present invention, for example, in the examples of FIGS. 3 and 4, the air inlet 71 includes a plurality of through holes penetrating through the bottom wall of the inner cylinder 2 in the thickness direction of the bottom wall of the inner cylinder 2, that is, The bottom wall of the cylinder 2 is formed in a grid shape. The inner cylinder 2 is rotatable about the axis of the inner cylinder 2, wherein the laundry to be dried is placed in the inner cylinder 2.

As shown in FIG. 2 and FIG. 5, the outer cylinder 3 is disposed in the casing 1 and disposed outside the inner cylinder 2. For example, the outer cylinder 3 is also formed in a cylindrical shape and includes a bottom wall and a peripheral wall, and the peripheral wall can be vertically disposed. On the outer perimeter of the bottom wall. The outer cylinder 3 and the inner cylinder 2 are spaced apart from each other to form an air passage 7 communicating with the air inlet 71 between the outer cylinder 3 and the inner cylinder 2, specifically, the peripheral wall of the outer cylinder 3 is separated from the peripheral wall of the inner cylinder 2. The predetermined distance is also spaced between the bottom wall of the outer cylinder 3 and the bottom wall of the inner cylinder 2, thereby defining a duct 7 communicating with the air inlet 71 therebetween.

As shown in Fig. 2, an air outlet 72 is formed in the vicinity of the open end of the outer cylinder 3 and the inner cylinder 2, and the air outlet 72 communicates with the inside of the inner cylinder 2 and the air duct 7, respectively. For example, in the example of Fig. 2, both the opening of the outer cylinder 3 and the opening of the inner cylinder 2 are oriented obliquely upward, and the door cover 4 is used to close the opening of the outer cylinder 3 such that at the opening of the outer cylinder 3 and the opening of the inner cylinder 2 An air outlet 72 communicating with the air duct 7 is defined, so that the air inside the inner cylinder 2 can enter the air duct 7 through the air outlet 72, and then return from the air inlet 71 to the inner cylinder 2 to form a circulation of the drying air flow. Fig. 5 schematically shows the direction of wind flow of the dryer 100 in accordance with one embodiment of the present invention.

Alternatively, the door cover 4 may be mounted on the casing 1, and the door cover 4 is rotatable in an open position in which the outer cylinder 3 is opened and a closed position in which the outer cylinder 3 is closed, and the door cover 4 may be a transparent glass cover. It is to be understood that the portion of the casing 1 corresponding to the door cover 4 is formed as a through hole for mounting the door cover 4.

As shown in FIG. 2, the semiconductor refrigerating sheet 5 is disposed in the air duct 7 and has oppositely disposed hot end faces and cold end faces, wherein the hot end faces of the semiconductor refrigerating sheets 5 are disposed on the peripheral wall of the inner cylinder 2, and the semiconductor refrigerating sheets 5 are The cold end face faces the inside of the duct. In other words, the hot end face is attached to the outer surface of the inner wall of the inner cylinder 2 to heat the inner cylinder 2, and the cold end surface is located on the opposite outer side of the hot end surface, that is, the cold end surface is located in the air duct 7 so that the cold end surface and the high temperature and high humidity flowing out from the air outlet 72 Air heat exchange. The air circulation driver 6 is provided in the casing 1 for driving the air in the inner cylinder 2 and the air in the duct 7 to circulate. It should be noted that the specific structure of the semiconductor refrigerating sheet 5 and its working principle and the like are known in the prior art and are well known to those skilled in the art and will not be described in detail herein.

5 shows the general direction of the air circulation in the inner cylinder 2 and the air duct 7 of the dryer 100 according to an embodiment of the present invention. Specifically, since the hot end surface of the semiconductor refrigerating sheet 5 is attached to the outer surface of the inner wall of the inner tube 2, the air in the inner tube 2 and the inner tube 2 can be directly heated, and the high-temperature air passes through the clothes in the inner tube 2. After entering the moisture in the clothes, the air becomes high-temperature and high-humidity air and flows into the air duct 7 from the air outlet 72. The high-temperature and high-humidity air exchanges heat with the cold end surface of the semiconductor refrigerating sheet 5, and the temperature of the high-temperature air is lowered to generate condensation water. It becomes a low-temperature and low-humidity air, and this part of the low-temperature and low-humidity air re-enters into the inner cylinder 2 from the air inlet 71 under the diversion of the air circulation drive 6, and becomes high-temperature air under the heating of the hot end surface to continue to take away the moisture in the clothes and The air is discharged from the air outlet 72, and the drying of the laundry is completed after the reciprocating cycle for a predetermined time.

In the process of drying the laundry, the inner cylinder 2 is preferably rotated at a time, so that the laundry can be better unfolded and beaten, and the area and time of contact between the laundry and the hot air are increased, thereby shortening the drying time and improving the drying effect.

The clothes dryer 100 according to an embodiment of the present invention has the following advantages:

1) The air duct 7 is defined by the inner and outer cylinders, which makes the dryer 100 compact and compact, with small space and low wind resistance;

2) The air duct 7 is located outside the inner cylinder 2, functions as a heat insulating layer, prevents a large amount of heat in the inner cylinder 2 from being lost, and is easy to maintain the temperature in the inner cylinder 2, thereby saving energy consumption of the dryer 100 and reducing The cost;

3) The semiconductor refrigerating sheet 5 is used as a cold and heat source, and the heating function and the condensing function are realized at the same time, which is small in size and further saves energy consumption.

Preferably, as shown in FIG. 2 and FIG. 5, the air circulation driver 6 is an axial flow fan, and the axial flow fan is disposed on the inner wall surface of the bottom wall of the outer cylinder 3, and the axial flow fan faces the air inlet 71, thereby improving the air inlet. Efficiency, while the axial flow fan is located in the inner cylinder 2 and the outer cylinder 3, the noise generated during operation can be better blocked, and the noise radiation rate is low, thereby improving the overall comfort of the dryer 100 during operation, and greatly improving The working noise of the dryer 100. Of course, it can be understood that the air circulation drive 6 is not limited to the axial flow fan, and may of course be a centrifugal fan or other fan, as long as the air circulation in the air duct 7 and the inner cylinder 2 can be promoted.

In one embodiment of the invention, the dryer 100 further includes a drive assembly 8 that is disposed within the housing 1 for driving the inner barrel 2 to rotate. For example, drive assembly 8 can include a motor and pulley drive mechanism, wherein the pulley drive is coupled to the output of the motor to drive the inner barrel 2 to rotate about its axis. Of course, it can be understood that the driving assembly 8 is not limited thereto, and other driving components 8 that can drive the rotation of the inner cylinder 2 fall within the protection scope of the present invention.

Preferably, the central axis of the inner cylinder 2 coincides with the central axis of the outer cylinder 3 such that the thickness of the annular duct 7 defined between the inner cylinder 2 and the outer cylinder 3 tends to be uniform, avoiding the passage of the air duct 7 Uneven thickness causes airflow disturbance and affects drying efficiency. Further, the central axis of the inner cylinder 2 is at a predetermined angle with the horizontal plane. For example, the predetermined angle may range from 30° to 60°. In this design, the user is not only convenient to open the door cover 4 to take and receive clothes. At the same time, it also conforms to the flow direction of the airflow, improves the flow efficiency of the airflow, and further improves the drying effect. In addition, with this inclined design, the condensed water generated by the heat exchange between the high temperature and high humidity air in the air duct 7 and the cold end surface can be further improved. Well flow to the lower part for centralized discharge.

Of course, it can be understood that the range of the predetermined angle is not limited to the above 30 ° -60 °, and the predetermined angle may range from 0 ° to 90 °.

In a further embodiment of the present invention, as shown in FIGS. 2 and 3, the clothes dryer 100 further includes a drain pipe 91 disposed on the outer cylinder 3 and communicating with the air duct 7 for exhausting the air duct 7 Condensed water. By providing the drain pipe 91, it is possible to collectively discharge the condensed water generated when the dryer is in operation.

Preferably, the drain pipe 91 is connected to the portion of the outer cylinder 3 having the lowest level. For example, in the example of Fig. 2, the inner cylinder 2 is inclined and the drain pipe 91 is connected to the lowest end of the outer cylinder 3, so that the dryer 100 is operated. The generated condensed water can be collected at the lowest point in the air duct 7, that is, the water inlet of the drain pipe 91, so that the condensed water can be smoothly and efficiently discharged, and the dryer 100 can be ensured to work normally.

Preferably, the clothes dryer 100 further includes a plurality of lifting ribs 93 which are provided on the inner wall surface of the peripheral wall of the inner cylinder 2 and are evenly arranged in the circumferential direction of the inner cylinder 2 such that the inner cylinder 2 rotates The lifting rib 93 can better lift the clothes to a high point, causing the clothes to fall and produce a hitting effect, thereby improving the drying efficiency. For example, in the example of Fig. 4, the number of lifting ribs 93 is three, and the three lifting ribs 93 are evenly arranged in the circumferential direction, that is, the angle of the center of any two lifting ribs 93 corresponds to about 120°. The lifting rib 93 and the inner cylinder 2 are preferably integrally formed, which facilitates the overall processing and manufacturing, and can reduce the cost.

As shown in FIG. 2, the clothes dryer 100 further includes a support roller 92 provided on the inner cylinder 2 and located outside the inner cylinder 2 for rotatably supporting the inner cylinder 2 in the outer cylinder 3, by providing support The roller 92 can realize the supporting action of the outer cylinder 3 on the inner cylinder 2, and at the same time effectively reduce the friction with the outer cylinder 3 when the inner cylinder 2 rotates.

In one embodiment of the invention, the semiconductor refrigerating sheet 5 is preferably annular and sleeved on the outer surface of the peripheral wall of the inner cylinder 2. This can improve the efficiency of cooling and heating of the semiconductor refrigerating sheet 5. Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the semiconductor refrigerating sheet 5 may be a plurality of stages, and are disposed outside the peripheral wall of the inner tube 2 at intervals in the circumferential direction.

In general, the dryer 100 according to the present invention has the advantages of simple structure, low noise, good drying effect, low heat loss, and low energy consumption.

It is to be understood that other structures and the like of the dryer 100 according to the embodiments of the present invention are known in the art and are well known to those skilled in the art and will not be described in detail herein.

In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.

Claims

Claim

A clothes dryer, characterized in that it comprises:

Housing (1);

The inner cylinder (2), the inner cylinder is rotatably disposed around the axis thereof in the casing (1);

An outer cylinder (3), the outer cylinder (3) is disposed in the casing and disposed outside the inner cylinder (2), and the outer cylinder and the inner cylinder are spaced apart by a distance to Forming a duct (7) between the outer cylinder and the inner cylinder;

An air circulation drive (6) is provided in the housing (1) for driving air in the inner cylinder (2) and air circulation in the air passage (7).

The clothes dryer according to claim 1, wherein the air circulation driver is disposed near the bottom of the inner cylinder.

The clothes dryer according to claim 1, wherein an air inlet is formed in the vicinity of a bottom wall of the inner cylinder

(71), an air outlet (72) is formed in the vicinity of the open end of the outer cylinder (3) and the inner cylinder (2), the air outlet

(72) communicating with the inside of the inner cylinder (2) and the air duct (7), respectively.

The clothes dryer according to claim 1, wherein a semiconductor refrigerating sheet (5) is disposed in the air duct (7), and the semiconductor refrigerating sheet (5) has opposite thermal end faces and The cold end surface, the hot end surface of the semiconductor refrigerating sheet (5) is disposed on the peripheral wall of the inner cylinder (2), and the cold end surface of the semiconductor refrigerating sheet faces the inside of the air duct (7).

The clothes dryer according to claim 4, wherein the semiconductor refrigerating sheet (5) is annularly fitted outside the peripheral wall of the inner cylinder (2).

The clothes dryer according to claim 1, wherein the air circulation driver (6) is an axial flow fan, and the axial flow fan is disposed on an inner wall surface of a bottom wall of the outer cylinder (3) on.

The clothes dryer according to claim 1, characterized in that the central axis of the inner cylinder (2) coincides with the central axis of the outer cylinder (3).

The clothes dryer according to claim 1 or 7, characterized in that the central axis of the inner cylinder (2) forms a predetermined angle with the horizontal plane.

The clothes dryer according to claim 8, further comprising a drain pipe (91), the drain pipe (91) being provided on the outer cylinder (3) and the air duct (7) The same is used to discharge the condensed water in the air duct (7).

The clothes dryer according to claim 9, wherein the drain pipe (91) is connected to the outer cylinder portion having the lowest level.