CN201214723Y

CN201214723Y - Clothes dryer

Info

Publication number: CN201214723Y
Application number: CNU2008200449330U
Authority: CN
Inventors: 张辉; 钟明生; 王文斌; 姚刚; 廖磊; 李云峰; 刘雁斌
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2008-03-14
Filing date: 2008-03-14
Publication date: 2009-04-01
Anticipated expiration: 2018-03-14

Abstract

The utility model relates to a clothes dryer for drying clothes, in particular to a drum-type clothes dryer. A dryer including a housing; a drum rotatably disposed within the housing; a drive motor mounted within the housing; the driving connecting piece is connected with the driving motor and the roller; a rear plate covering the rear side of the drum and having an air vent; a front plate covering the front side of the drum and having a laundry inlet and an air vent; and a relatively stationary surface which does not rotate with the drum; wherein, a resistance object is arranged on the relative stationary surface far away from the rotary axle center of the roller. Because the relatively stationary surface is stationary relative to the shell and the drum rotates relative to the shell in the working state of the clothes dryer, the resistance object arranged on the relatively stationary surface can generate resistance to the clothes rotating in the drum, so that the clothes can not rotate under the action of the boss except for simple rolling rotation in the drum, and the clothes are not rotated, thereby increasing the hair increasing area and accelerating the drying of the clothes.

Description

Clothes dryer

Technical Field

The utility model relates to a clothes dryer for drying clothes, in particular to a drum-type clothes dryer.

Background

The utility model relates to a clothes dryer is cylinder clothes dryer, and its theory of operation is: the hot air evaporates moisture on the laundry and is discharged out of the machine by heating the flowing air, and simultaneously, enables each part of the laundry to be uniformly dried by the rotation of the drum.

Fig. 1 is a sectional view of a related art dryer. The existing clothes dryer includes: a case 10 provided in a hexahedral shape so as to have an inner space; a drum 30 rotatably disposed within the housing 10; a driving motor 20 installed in the casing 10 and generating a driving force to rotate the drum 30; a belt 40 and a pulley 41 for connecting the driving motor 20 with the drum 30 and transmitting a rotational force of the driving motor 20 to the drum 30; a rear plate 50 which is provided in a circular plate for covering the rear side of the drum 30 and has an air suction opening 51 formed of a plurality of through-holes; and a front plate 60, which is provided in a circular plate for covering the front side of the drum 30, and has an inlet 61 and an exhaust outlet 62. During operation of the dryer, the drum 30 rotates while the front plate 60 is stationary.

In addition, the dryer further includes: an air suction duct 70 connected to the air suction opening 51 for a passage of air sucked into the drum 30 from the outside; a heater (H) mounted to an inlet portion of the air suction duct 70 for heating the sucked air; an exhaust duct 80 connected to the exhaust port 62 of the front plate 60, serving as a passage for exhausting air that completes a drying process in the drum; and a fan 91 installed in the exhaust duct 80 and generating air blowing by driving the motor 20. A door (D) for opening/closing the dryer is mounted to a front surface of the case 10, and a filter (F) for filtering foreign substances such as lint is installed in the exhaust duct 80. Reference numeral R denotes a roller for supporting the drum 30, and reference numeral 11 denotes a plurality of ventilation holes provided at the housing 10.

The operation of the above-described conventional clothes dryer will be explained as follows.

First, the user opens a door (D) installed at the front surface of the cabinet 10, puts laundry into the drum 30 through the entrance 61, and closes the door (D), and, when the user turns on the operation switch, power is supplied to the driving motor 20 and the driving motor 20 is operated. The driving force generated by the driving motor 20 is transmitted to the drum 30 through the pulley 40 and the belt 41, and thus the drum 30 is rotated while the fan 91 connected to the driving motor 20 is operated. As the drum 30 rotates, the laundry put in the drum 30 falls in a rotating manner. Meanwhile, the air sucked from the outside by the suction force of the fan 91 is heated by the heater (H) and flows into the drum 30 through the suction opening 51 of the rear plate 50. The heated air sucked into the drum 30 through the air suction opening 51 of the rear plate 50 dries the laundry falling into the drum 30 in a rotating manner, and the heated air is discharged through the air discharge opening 62 of the front plate 60. This moisture-containing air discharged through the air discharge port 62 is then discharged to the outside of the case 10 through the air discharge duct 80. By continuously performing this process, the laundry put in the drum 30 is dried, and when the drying process is completed, the user opens the door (D) and takes out the laundry to be dried through the inlet 61. Meanwhile, a plurality of dial bodies 32 rotating together with the drum 30 are mounted to the inner circumference of the drum 30 to rotate the laundry within the drum 30.

In more detail, as shown in fig. 2 and 3 (fig. 2 is a sectional view taken along line a-a of fig. 1; fig. 3 is an expanded view of the drum), the drum 30 of the dryer is provided with a cylindrical drum body 31 and a plurality of dial bodies 32, and the plurality of dial bodies 32 (generally, 3 in total) are protruded from the inner circumference of the cylindrical drum body 31 toward the rotational center at regular intervals. In the general dryer, three dial bodies 32 are provided in an elongated manner along a length direction of the cylindrical drum 31, wherein the three dial bodies 32 protrude from an inner circumference of the cylindrical drum 31 at an angle of 120 degrees in a normal direction of the cylindrical drum 31. The dryer including the three dial bodies 32 moves and lifts the laundry in the drum 30 to the upper portion of the drum 30 while the cylindrical drum body 31 rotates, at which the waving body 32 having the laundry hung on the upper portion is moved to the upper portion of the drum 30, the laundry freely falls from the upper portion to the bottom of the drum 30, and the laundry is dried while contacting with the heated air sucked through the suction opening 51 of the rear plate 50 while falling.

However, in the above-described clothes dryer, the laundry is always rotated in the same direction and manner, and thus, the drying part of the laundry is not uniform, and the area where the laundry is evaporated is also reduced. Therefore, the drying efficiency is drastically reduced.

In the above-described clothes dryer, since the lengths of the three dial bodies 32 are the same as the length of the cylindrical drum body 31, it is difficult to uniformly disperse the clothes, so that the clothes are gathered around one place or are gathered randomly. When a large amount of clothes are accumulated, the clothes are stacked among the three shifting bodies 32 and tightly attached to the inner wall of the drum 30, so that an airflow channel between the air suction opening 51 and the air outlet 62 is blocked, the evaporation area of the clothes is reduced, and the quick drying of the clothes is not facilitated. Therefore, the drying efficiency is not high.

Disclosure of Invention

The utility model aims at providing a clothes dryer that drying efficiency is high.

In order to achieve the above object, the utility model provides a following technical scheme:

a clothes dryer comprises

A housing;

a drum rotatably disposed within the housing;

a drive motor mounted within the housing;

the driving connecting piece is connected with the driving motor and the roller;

a rear plate covering the rear side of the drum and having an air vent;

a front plate covering the front side of the drum and having a laundry inlet and an air vent; and

a relatively stationary surface which does not rotate with the drum;

wherein,

and a resistance object is arranged on the relative stationary surface and away from the rotary shaft center of the roller.

Because the relatively stationary surface is stationary relative to the shell and the drum rotates relative to the shell in the working state of the clothes dryer, the resistance object arranged on the relatively stationary surface can generate resistance to the clothes rotating in the drum, so that the clothes can not rotate under the action of the boss except for simple rolling rotation in the drum, and the clothes are not rotated, thereby increasing the hair increasing area and accelerating the drying of the clothes.

The further technical scheme is as follows:

a plurality of ribs project from an inner circumferential surface of a body of the drum toward a center of the drum.

After the inner circumferential surface of the drum of the clothes dryer is provided with the plurality of ribs, the gaps between every two adjacent ribs are smaller due to the fact that the number of the ribs is large, and therefore clothes are difficult to block the gaps between the adjacent ribs. The gaps form an airflow channel for communicating the air vent and the air vent, so that the evaporation area can be effectively increased, and the clothes drying efficiency is improved. In addition, the clothes can be driven to rotate through the friction between the ribs and the clothes.

Drawings

FIG. 1 is a longitudinal sectional view of a conventional clothes dryer;

FIG. 2 is a sectional view of a drum of the related art dryer taken along line A-A of FIG. 1;

FIG. 3 is an expanded view of a drum of a conventional clothes dryer;

FIG. 4 is a schematic structural view of a drum, a front plate and a rear plate of the clothes dryer of the present invention;

FIG. 5 is a plan view of a drum of the clothes dryer of the first embodiment;

fig. 6 is a perspective view of a drum and a rear plate of the dryer of the second embodiment.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Example one

The clothes dryer mainly comprises a shell; a drum rotatably disposed within the housing; a drive motor mounted on the housing; the driving connecting piece is connected with the driving motor and the roller; a rear plate covering the rear side of the drum and having an air vent; and a front plate covering the front side of the drum and having a laundry inlet and an air vent. Of course, the dryer further includes an air suction duct, a heater, and the like.

Since the present invention is improved in the drum, the front plate and the rear plate portion, the drawings of other portions are not given.

Referring to fig. 4 and 5, fig. 4 is a schematic view illustrating two protrusions on the front plate; fig. 5 is a plan view of the drum. The drum 3 will be arranged inside the casing of the dryer in such a way as to rotate about its own axis 0. The front plate 5 and the rear plate 4 seal the front and rear ends of the drum 3, respectively, the front plate 5 and the drum 3 rotate relatively, and the rear plate 4 and the drum 3 rotate together. Two bosses 5a extend from the inner side of the front plate 5 toward the inside of the drum 3, and the bosses 5a are far away from the rotation axis of the drum. When the clothes rotate along with the drum 3, part of the clothes can contact with the bosses 5a, and the moving direction is changed under the action of the bosses 5a, so that the whole evaporation area of the clothes is increased, and the drying of the clothes is accelerated. In this embodiment, the boss is ridge-shaped.

The drum 3 comprises a cylindrical barrel. Three stirring bodies 3b are uniformly distributed on the inner circumferential surface 3a of the drum body, and the stirring bodies 3b are used for driving clothes to rotate in the drum 3. In addition, three groups of ribs 3c are uniformly distributed on the inner circumferential surface 3a of the drum 3 towards the center of the drum, the three groups of ribs 3c are respectively positioned between two adjacent shifting bodies 3b, namely 7 ribs 3c are uniformly distributed between every two adjacent shifting bodies 3b, and as can be seen from the figure, the height of each rib 3c is less than that of the shifting body 3c, because the shifting body 3b is used for stirring clothes, the height of the shifting body 3b cannot be too low, otherwise, the clothes cannot be stirred; and an airflow channel is formed between the adjacent ribs 3c, and if the ribs 3c are too high, the airflow channel is easily blocked by clothes. The ribs 3c and the cylindrical barrel are of an integral structure. An air channel is formed between every two adjacent ribs 3c, and the air channel is slender, so that the clothes can not block the air channel generally.

Example two

The main differences between this embodiment and the first embodiment are: the internal structure of the roller and the structure of the rear plate are changed, and other parts (such as the front plate and the like) are the same as the first embodiment. Referring to fig. 6 in particular, fig. 6 is a perspective view of a drum and a rear plate of the dryer of the present embodiment. The drum 300 includes a cylindrical drum body, and 24 ribs 300b are uniformly distributed on an inner circumferential surface 300a of the drum body toward the center of the drum. An air channel is formed between every two adjacent ribs 300b, and the air channel is slender, so that the clothes can not block the air channel generally. In addition, 24 ribs 300c are also arranged between the bottom of the drum and the rear plate 400, and air channels are formed between every two adjacent ribs 300c, and the air channels formed between the adjacent ribs are communicated with the air vents of the clothes dryer.

The drum of the clothes dryer can also adopt the drum of the embodiment I.

In addition, the boss is arranged on the front plate in the two embodiments, but the boss can be arranged on other planes which are relatively static with the open end of the roller, namely, the relatively static planes and the roller move relatively. The boss may be formed in a spherical crown shape or a trapezoidal shape as long as it can generate resistance to rotation of the laundry, and therefore, a friction surface may be provided on the opposite stationary surface to generate resistance to rotation of the laundry instead of the boss.

Of course, the number of ribs in the drum of the present invention is not limited to the number indicated in the above embodiment, and the number may be controlled to be larger than 8. In conclusion, obvious modifications and other changes from the embodiments described above are intended to be included within the scope of the appended claims.

Claims

1. A clothes dryer comprises

A housing;

a drum rotatably disposed within the housing;

a drive motor mounted within the housing;

a rear plate covering the rear side of the drum and having an air vent;

a relatively stationary surface which does not rotate with the drum;

the method is characterized in that:

2. The clothes dryer of claim 1,

the method is characterized in that:

at least one boss is arranged on the relative stationary surface far away from the rotary shaft center of the roller.

3. The clothes dryer of claim 2,

the method is characterized in that:

the boss is ridge-shaped.

4. The clothes dryer of claim 2,

the method is characterized in that:

the boss is spherical crown shaped.

5. The clothes dryer of claim 2,

the method is characterized in that:

the boss is trapezoidal.

6. The clothes dryer of claim 1,

the method is characterized in that:

at least one friction surface is arranged on the relative static surface far away from the rotary axle center of the roller.

7. The clothes dryer according to any one of claims 1 to 6,

the method is characterized in that:

8. The clothes dryer of claim 7,

the method is characterized in that:

the number of the ribs is more than 8.

9. The clothes dryer of claim 8,

the method is characterized in that:

and ribs with the same number as the ribs are arranged between the lower part of the inner circumference of the cylinder body and the back plate.

10. The clothes dryer of claim 9,

the method is characterized in that:

the drum also comprises three shifting bodies uniformly distributed on the inner circumferential surface of the drum body, and the height of the shifting bodies protruding out of the inner circumferential surface of the drum body is greater than the height of the ribs protruding out of the inner circumferential surface of the drum body.