JPS6021759B2 - drum type clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clothes dryer, and its purpose is to expand the scope of use by adding other functions to the hot air generating device included in the dryer, and to save energy by effectively utilizing heat. It is in the plan.

There are two types of laundry dryers: drum type and hanging type.Drum type clothes dryers are characterized by higher drying efficiency than hanging type clothes dryers.

This drum dryer is equipped with a drum that serves as a clothes storage, a blower, a motor, and a heater inside the main body, and has a structure that allows hot air to flow into the drum to dry clothes.It also functions as a hot air generator. It cannot be removed from the main body. Additionally, drum dryers are relatively large in size due to the storage format of the main body, and are difficult to move because they are installed in a fixed location such as a washroom, kitchen, or bathroom. For example, when heating a room or drying futons, it is possible to use hot air exhausted from a dryer, but it is difficult to move the dryer itself, and in the end, conventional drum-type clothes dryers are used. The machine could only function as a clothes dryer. Recently, as another use for futon dryers,
The hot air from the hot air generator is guided into the hanging dryer.
It is used to dry clothes, but because it is a hanging type, the drying efficiency is low.

Furthermore, the evaporation rate at which moisture evaporates from per unit area of the futon is determined by the air volume and hot air temperature. but,
When drying a futon, since the moisture content of the futon is extremely low, it is necessary to promote the transfer of moisture to the futon surface through capillary action, and drying is determined by the temperature of the hot air rather than the amount of airflow. , the higher the temperature, the more effective the action. However, if the hot air temperature is increased, the futon will discolor or burn, so it is necessary to lower the hot air temperature to some extent to dry the futon. On the other hand, when drying clothes, since the moisture contained in the clothes is much higher than that of futons, drying is affected by the amount of airflow and the temperature of the hot air. Therefore, the drying efficiency is low and the drying time becomes longer. The present invention is a drum type dryer with high drying efficiency that is detachably equipped with a hot air generator, and allows setting of drying conditions for drying futons in addition to drying clothes, thereby allowing drying to be carried out under optimal conditions. In particular, the aim is to reduce the air blowing resistance, thereby reducing the size of the fan, and at the same time, to save energy in the operation of the blower. Embodiments of the present invention will be described below with reference to the drawings.

In Figures 1 to 5, 1 is the main body of the drum dryer;
Reference numeral 2 denotes a clothes storage cabinet rotatably installed inside the main body 1, and a filter 3 and a filter frame 4 are installed on the rear wall. 5 is an exhaust air cylinder installed at the rear of the clothes storage 2;
It is equipped with 6 fans inside.

The entrance part of the exhaust air cylinder 5 is connected to the inside of the clothes storage 2 and is equipped with an exhaust port 7. 8 is a motor whose rotation is transmitted to the fan 6 via pulleys 9, 10 and a belt 11.

Further, the clothing storage 2 is rotationally driven via a pulley 12 and a belt 13. Reference numeral 14 denotes a hot air generator, which includes a blower device consisting of a fan 15, a casing 16, and a motor 17, a motor 18 having positive resistance temperature characteristics, and a timer 1.
9. Air supply □ 20, exhaust port 21, wiring connector 22 of motor 8, switch 23 of motor 17, opening 24 provided in a part of the side wall of fan casing 16 and located between heater 18 and fan 15, and this closing part The damper 25 is provided so as to be slidable over the main body 1 and has one end biased by a spring 26 in the direction of closing the entrance part 24, and is configured to be detachable from the main body 1.

Reference numeral 27 denotes a gate part provided on the main body 1, the peripheral end of which protrudes inward to form a protrusion 28, with which one end of the damper 25 and the protrusion 28 engage.

29 is a wiring connector.

When the hot air generator 14 is installed in the main body 1, the entrance part 24 is opened by the damper 25 and is flush with the closing part 27. Moreover, at this time, at the same time that the wiring connectors 22 and 29 are connected, the switch 23 is opened to cut off the power to the motor 17. 301 is a filter, 31 is a wind barrel, and 32 is a door.

In the above configuration, when the hot air generator 14 is incorporated into the main body 1, the dry air flows in through the entrances 24 and 27, is heated by the heater 18, is discharged from the exhaust port 21, and then enters the clothes storage 2. and is exhausted from the exhaust port 7.
The above-mentioned ventilation route constitutes another ventilation route that short-circuits the ventilation bag without passing through the ventilation bag, which is composed of the air supply port 20, the fan 15, the casing 16, and the motor 17, so that the ventilation resistance is reduced. . The relationship between the amount of air passing through the heater 18 of the hot air generator 14, the static pressure, and the heater input will be explained with reference to FIGS. 6 and 7, respectively.

In Figure 6, when the required air volume when used as a drum dryer is A, if the air flow path is not short-circuited,
That is, when air is supplied from the air supply port 20, a fan having a fan characteristic of curve a is required when the air blowing resistance is P.

On the other hand, when the air blowing path is short-circuited as in this embodiment, the air blowing resistance becomes P2 and 4.
can be made smaller. In addition, when the hot air generator 14 is used alone, the air volume B is obtained from the relationship between the fan characteristic of the curve c determined by the fan 15 and the air blowing resistance from the air supply port 20 to the exhaust port 21 P3. . That is, by attaching and detaching the hot air generator 14, the air volumes A and B are automatically provided, respectively, and as a result, the heater inputs are W^ and W8, as shown in FIG. Here, in FIG. 5, the timer 19 includes the cam 33 and the contact 3.
It consists of 4,35.

Further, a motor 8 and a wiring connector 29 are installed inside the main body 1. Next, the operation will be explained.

When the hot air generator 14 is installed in the main body 1 and used as a drum dryer, when the clothes are put into the clothes storage 2 and the time-limited clothes 19 are set, the contacts 34 and 36 are closed, and the heater 18 and wiring are closed. Since the connectors 22 and 29 are connected, the motor 8 is energized, the clothes storage 2 and the fan 6 are rotated, and at the same time dry air is supplied to the entrance 27 at the air volume A.
Air is supplied from the air outlet, heated by a heater 18, flows into the clothing storage, evaporates moisture from the clothing, and is exhausted from the exhaust port 7.
The heater input at this time is W^, which is as high as wind leather. When this state continues and the drying progresses, the contact 35 becomes a barrier, the passage to the heater 18 is cut off, drying is performed with cold air, and then the contact 34 opens to complete the drying process. In this drying process, since the heater input and air volume meet the conditions commonly used in drying clothes, the drying efficiency is high.

Further, since the switch 23 is a gate, the motor 17 is not energized, so that energy can be saved. When using the futon dryer, take out the hot air generator 14 from the main body 1, attach an appropriate fitting to the exhaust port 21, and set the timer 19 to supply hot air to the futon. The child B heater input WB is given, and the clothes are dried with less air volume and less heater input than when drying clothes.

Further, the hot air generator 14 alone can be used as a hot air generator, and hot air at an appropriate temperature can be obtained. As described above, the drum-type clothes dryer of the present invention can be provided with other functions such as drying futons by attaching and detaching the hot air generator to the main body of the drum type clothes dryer. and when you take it out and use it independently.
The air volume changes automatically, and the input of the heater, which has positive resistance temperature characteristics, changes, providing the optimal air conditions for drying clothes and bedding.
Highly efficient drying is possible.Furthermore, when the hot air generator is incorporated into the main unit, the air flow path that carries the total exhaust port of the hot air generator is short-circuited, so the air resistance is reduced to 4.
・It becomes smaller and can be shaped into a fan.

Furthermore, when drying clothes, only the heater of the hot air generator is operated and the blower is stopped, which is useful in terms of energy saving.

[Brief explanation of drawings]

FIG. 1 is a front view of a clothes dryer according to an embodiment of the present invention;
Fig. 2 is a schematic vertical side view, Fig. 3 is a sectional view taken along the line x-X of Fig. 2, Fig. 4 is an external perspective view of the hot air generator, and Fig. 5 is a schematic longitudinal sectional side view.
6 is a diagram showing the relationship between the air volume and static pressure in the heater, and FIG. 7 is a diagram showing the relationship between the air volume and the heater input. 1...Main body, 2...Clothing storage, 6,
15...Fan, 8...Motor, 14
... Hot air generator, 18 ... Heater,
20... Air supply □, 21... Exhaust port, 2
2, 29... Wiring connector, 24, 27...
...opening section, 25... damper. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Scope of Claims] 1. A main body is provided with a rotatable clothing storage, a motor for rotating the storage, a fan for ventilation in the storage, and a hot air generator for generating hot air. The device is equipped with a heater having a positive resistance-temperature characteristic, a blower device for blowing air to the heater, and a supply/exhaust port, and is detachably attached to the main body, and when the hot air generator is installed in the main body, the above-mentioned 1. A drum-type clothes dryer characterized in that an air blowing path that communicates between supply and exhaust ports is short-circuited by another air blowing path, and power to the air blower is cut off. 2. An opening is provided in a part of the ventilation path that communicates between the supply and exhaust ports, a damper is provided to cover this opening and can be slid freely, and the damper is installed in the main body when the hot air generator is installed in the main body. A protrusion that engages with the main body is provided, and at the time of the installation, the opening opens and communicates with the outside through the opening provided in the main body to form a ventilation path separate from the ventilation path, and the installation is canceled. 2. The drum type clothes dryer according to claim 1, wherein the damper is configured to close as a result of this.