JPH049997Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to a drying structure for a washing machine, and in particular, a drying structure for a washing machine that can perform washing, rinsing, spin-drying, and drying as a series of washing cycles. Regarding.

“Prior Art” Traditionally, this type of drying structure typically
A drum-type washing machine as shown in FIGS. 3 and 4 is known. For example, in such a washing machine, the rotating shaft 37 of the rotating drum 24 provided in the water tank 35 is set in the horizontal direction, and the driving force for rotating the rotating drum 24 around the horizontal axis is transmitted from the motor 31 to a pulley. 32
is transmitted to the rotating drum 24 via the belt 33.
The signal is transmitted to a pulley 34 that is integrally attached to the.

In such a washing machine drying structure, the fan 21 that rotates during the drying process is placed outside the water tank and is driven by the motor 20, and the airflow generated thereby is heated by the heater 22. .
The heated airflow is also sent into the rotating drum 24 via a duct 23 outside the water tank, and dries the laundry after dewatering. This airflow is then discharged into the duct 25, dehumidified in the heat exchanger 26, and sent to the duct 27 to be circulated back to the blower fan 21. Note that the cooling of the airflow in the heat exchanger 26 is performed by blowing air from a fan 29 that is rotated by the drive of the motor 28.
Drained liquid generated during the dehumidification is discharged to the outside from the pipe 30.

``Problem that the invention aims to solve'' However, in the conventional drying structure, many ducts as ventilation paths and heat exchangers as related equipment are placed near the water tank.
The structure is complicated and the installation space is large, which increases the cost of the product and increases the size of the washing machine as a whole.

``Object of the invention'' Therefore, the main object of this invention is to provide a drying structure for a washing machine that simplifies the entire apparatus, correspondingly reduces the cost of the product, and downsizes the apparatus.

"Means for Solving the Problems" In order to achieve the above object, the main means adopted by this invention is a drying structure of a washing machine equipped with a water tank and a rotating tank accommodated in the water tank. , a circulating air blowing path from the rotary tank to the air passage between the water tank and the rotary tank, and returning to the rotary tank again; and an exhaust port for bringing the outside air into contact with the outer surface of the water tank following the outside air intake port. The point is that a ventilation route leading to the

"Function" The moist airflow generated by drying the laundry in the rotating tub is sent from the rotating tub between the rotating tub and the water tank, which form part of the circulating air flow path. On the other hand, the outside air taken in through the ventilation path comes into contact with the aquarium, thereby cooling the aquarium and performing so-called heat exchange. The airflow cooled and dehumidified by the water tank is preferably heated by a heater or the like,
By returning the laundry to the rotating tub, drying of the laundry is repeated.

``Effects of the invention'' According to this invention, there is no need to provide a ventilation path or related mechanism for blowing air for drying laundry, for example, around the outside of the water tank, simplifying the entire device. Therefore, the cost of the product can be reduced and the size of the washing machine can be reduced.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description with reference to the drawings.

``Embodiment'' FIGS. 1 and 2 show the structure of an embodiment of this invention, with FIG. 1 being a schematic side sectional view and FIG. 2 being a schematic longitudinal sectional view.

Note that the following example is only one specific example of this invention, and the technical scope of this invention is not limited by this example.

In FIGS. 1 and 2, the washing machine A includes an inner space 5 surrounded by an outer tub 6, a rear plate 7 and a top plate 8 that are removably attached to the outer tub 6. ing. Among these, a laundry entrance/exit 6 _a and a ventilation inlet 6 _b are formed in the front side wall of the outer tub 6, and a lid 6 _c is attached to the entrance/exit 6 _a so as to be openable and closable. Further, in particular, the top plate 8 is equipped with a ventilation fan 9 for forcibly discharging outside air taken in from the ventilation suction port _6b to the outside of the refrigerator during drying, and a motor 17 that drives the fan. Therefore, a ventilation path is formed in the internal space 5 from the ventilation suction port _6b to the fan 9.

In this internal space 5, a hollow cylindrical water tank 1 is elastically supported by a buffer member 19 mainly composed of a coil spring or the like, with its cylindrical axis held horizontally, and anti-vibration measures are taken. has been done. Furthermore, this aquarium 1
A water supply valve 1 _a and a drain valve 1 _b are provided at the upper and lower parts of the machine, respectively, and washing water and waste water are supplied and drained as appropriate. Further, the opening 1 _c of the water tank 1 is formed at a position corresponding to the above-mentioned entrance/exit 6 _a , and is connected to the opening 1 c via an expandable gasket 1 _d .

Next, in this water tank 1, a hollow cylindrical rotary tank 3 which is provided with drainage holes (not shown) formed for dehydration as appropriate and which matches the shape of the water tank 1 is attached to the water tank 1.
Similarly, it is housed with the cylinder axis horizontal, with a certain gap 4 separating it from the inner wall of the water tank 1. That is, on the back wall 3 _a of the rotary tank 3, a bearing 1 _f provided approximately at the center of the back wall 1 _e of the water tank 1 allows
A rotating shaft _3b rotatably supported is attached. A pulley 13 is fixed to this rotating shaft _3b on the outside of the water tank 1.
3 includes a pulley 11 fixed to the motor 10.
The driving force of this motor 10 is transmitted from the motor 10 through the belt 12. In this case, the rotating shaft 3 _b has a shaft portion formed into a hollow cylinder shape communicating from the pulley 13 side to the rotating tank 3 side, and the fan shaft 15 is rotatably inserted and supported in the hollow.

The fan shaft 15 has one end protruding into the rotating tank 3 and the other end protruding from the pulley 13 into the internal space 5 of the refrigerator. A fan 2 is attached to the aquarium 1 side of the fan shaft 15 for blowing the air in the rotary tank 3 into the gap 4 (air passage) formed between the rotary tank 3 and the aquarium 1. A sun gear of a planetary gear section 14 having an internal gear attached to a pulley 13 is fixed to the inside space 5 side. As a result, the driving force from the motor 10 transmitted to the pulley 13 is divided, a part of which directly rotates the rotating tank 3, and the remaining driving force is transmitted to the fan shaft 15 via the planetary gear part 14. , the fan 2 in the rotating tank 3 is rotated at an increased speed.

At this time, in this planetary gear section 14, a system is adopted in which a planet gear is rotatably fixed at a fixed position, and the planet gear, internal gear, and sun gear are connected and disconnected as necessary. The rotation of step 2 is interrupted/continued.

Note that an opening 3 _c is formed in this rotary tank 3 so as to correspond to the opening 1 _c of the water tank 1 and communicate with the entrance/exit 6 _a of the outer tank 6. Also, aquarium 1
A heater 16 is installed at the bottom of the tank to heat the air appropriately circulated in the water tank 1 and the rotating tank 3 by the fan 2.

Next, the functions of the embodiment structure having such a configuration will be explained. In FIG. 1, when each process of washing, rinsing and dewatering is completed and the dewatered water is completely discharged from the lower part of the water tank 1 through the drain valve _1b , the motor 10 is driven. Then, the driving force of the motor 10 is divided by the pulley 13 via the planetary gear part 14 attached to the pulley 13, and the fan 2 starts to rotate as the rotary tank 3 rotates.
As the fan 2 rotates in the rotating tank 3, the air in the rotating tank 3 is blown into the gap 4 (air passage) formed between the rotating tank 3 and the water tank 1, as shown by the thin arrow. Ru. This airflow is forcibly fed by the fan 2 and returned into the rotating tank 3 through the opening _3c . In this way, a circulating air passage is formed from the rotary tank 3 through the gap 4 and back to the rotary tank 3 again. Further, sufficient heating is performed by the heater 16 in the middle of this circulation air blowing path. On the other hand, when the outside air from the ventilation inlet _6b is discharged by the fan 9 through the outer surface of the aquarium 1, this outside air comes into contact with the outer surface of the aquarium 1 and passes through it while taking away heat from it. Water tank 1 will be cooled. At this time, the moist hot air passing through the gap 4 is cooled by the water tank 1 and is cooled and dehumidified. And this cold dry air is heated by heater 1.
6 and then returned to the water tank 1 to dry the laundry. In addition, the drained liquid generated by dehumidification falls directly to the bottom of the water tank 1 and drains through the drain valve 1 _b.
is discharged to the outside.

[Brief explanation of the drawing]

Figures 1 and 2 show the structure of one embodiment of this invention, with Figure 1 being a schematic side sectional view, Figure 2 being a schematic longitudinal sectional view, and Figures 3 and 4 being the background of this invention. A conventional example device is shown, and FIG. 3 is a schematic longitudinal sectional view;
FIG. 4 is a schematic side sectional view. Explanation of symbols, 1...aquarium, 2...fan, 3...
...Rotating tank, 4...Gap, 5...Inner space.

Claims (1)

[Claims for Utility Model Registration] A drying structure for a washing machine comprising a water tank and a rotating tank housed in the water tank, wherein air is supplied from the rotating tank through an air passage between the water tank and the rotating tank. A drying structure for a washing machine, comprising: a circulating air passage that returns to the rotary tank; and a ventilation passage that connects the outside air to the outer surface of the water tank following the outside air intake, and then reaches the exhaust port.