JPS5937996A - Clothing dryer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clothes dryer, and particularly aims to save power consumption thereof. Clothes dryers generally have a structure in which air from a fan heated by a heater flows into a rotating drum, and after exchanging heat with the items to be dried, the air is discharged to the outside of the drum.

Clothes dryers usually take about 2 hours to dry 2 to 9 clothes, and this time is set by a timer.

In this way, the clothes dryer has the advantage of drying clothes in a short time. However, the demand for drying clothes in a short period of time is extremely rare.

On the other hand, a clothes dryer can obtain a dry finish by simply blowing outside air directly onto the clothes, rather than using hot air heated by a heater, if the clothes dryer is operated for a long time. This so-called cold air drying
The power consumption of the motor is the only energy that contributes to drying clothes, but the power consumption accumulates over long periods of operation. but.

Cold air drying has the advantage of consuming less power than conventional hot air drying, as long as the outside air is at a temperature and humidity suitable for the drying conditions.

An object of the present invention is to provide a clothes dryer that can save power consumption by utilizing the above-mentioned points.

Hereinafter, two clothes dryers of the present invention will be explained with reference to the drawings. 1st
The figure is a sectional view showing a clothes dryer according to one embodiment. In the figure, (1) is the outer box of the dryer. (2) is the outer box (
1) With a drum rotatably supported inside.

Clothes to be dried are stored inside. (3) is the main body (
1) and a drum (2) for opening and closing an opening for putting in and taking out clothes. (4) is a motor fixed to the bottom of the outer box (1), and a drum belt (5) is attached to its rotating shaft.
The rotational power of the drum (2) is transmitted to the drum (2). In addition, the motor (
The rotational power of 4) is transmitted to the fan (7) via the fan belt (6). (8) is a heater. The fan (7) takes in outside air from the intake port (9), and after passing through the heater (8), the outside air is blown into the drum (2), where it exchanges heat with the material to be dried inside the drum (2). Exhaust to the outside through the air outlet.

αυ is a temperature detector that is installed near the air intake port (9) in the ventilation path and detects the temperature of the outside air, and aa is a humidity detector that similarly detects the humidity of the outside air. 'Next, in Figure 2, which separately shows the front of the dryer body, (I
I is a hot air timer that sets the time to energize the heater (8) and motor (4), α is a hot air timer that sets the time to energize the motor (4), and Q is a cold air timer installed in parallel with hot water. However, the cold air timer A4 can be set for a much longer time than the warm air timer α. Further, ae is a display device such as a -) amplifier. Note that in FIG. 2, the same reference numerals as in FIG. 1 indicate the same parts.

The graph shown in FIG. 3 is a characteristic of the point at which the dried material reaches a predetermined degree of dryness when cold air drying operation is performed, and the horizontal axis represents the power consumption and the vertical axis represents the outside air temperature. Also, (a) is a case where the humidity of the outside air is low.

(b) represents the characteristics when humidity is high. Broken line in the figure (A
) indicates the power consumption when drying with hot air in outside air at the same temperature and humidity. As is clear from Figure 3.

If the outside air has the temperature and humidity to the left of the dashed line, the power consumption will be lower than when drying with warm air.

The block diagram shown in FIG. 4 is a control device for a clothes dryer that utilizes the above-mentioned point □ to realize savings in power consumption.・
ae is an arithmetic unit that inputs the temperature sensor αυ and the humidity sensor Q side and performs calculations. The arithmetic unit ae.

Calculate the power consumption of hot air drying and cold air drying based on the temperature and humidity of the outside air, and if it is determined that cold air drying is advantageous,
Enables operation of only the cold air timer α (cold air drying) and lights up the display device (to).

In this case, if the operation is performed incorrectly (if the hot air timer a3 for hot air drying is set even though there is a display indicating that cold air drying is advantageous).

There is an inconvenience that the dryer does not work, but the computing device α
Whichever timer α is set regardless of the configuration of e or the calculation result
If the drying process is carried out.

This inconvenience can also be resolved. Of course, in this case, when cold air drying is advantageous, it goes without saying that the display device α9 is turned on to notify that cold air drying is advantageous.

In addition, in the above embodiment, the display device 0th floor was turned on when cold air drying is advantageous, but it may be turned on when warm air drying is advantageous. etc. may be used.

As detailed above, the present invention detects the temperature and humidity of the outside air,
Calculate and compare the power consumption of cold air drying without energizing the heater and conventional hot air drying, and if it is determined that cold air drying is advantageous, the notification means will notify you.

The user is informed that power consumption can be saved by cold air operation, so if there is two hours to spare, the user can save power consumption by selecting cold air operation.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of a clothes dryer according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a characteristic diagram of power consumption with respect to outside temperature, and FIG. 4 is a control device of the present invention. FIG. In the diagram, (1)...outer box, (2)...drum, (7)
...Fan, (11)...Temperature detector, a2...
・Humidity detector, (I3... Warm air timer. 04... Cold air timer, α... Display device. Agent Makoto Kuzuno - Figure 1 Figure 2/J 14 1J

Claims (3)

[Claims] (1) A drum is rotatably installed in the main body, and heated outside air is supplied to the drum via a heater. In a clothes dryer, the clothes dryer includes a fan that exhausts the dried material to the outside after heat exchange with the drying material stored in the drum, and a motor that drives the drum and the fan, a detection means for detecting and outputting the temperature and humidity of the outside air, and the detection means a calculation means that inputs the output of the heater, calculates whether the power consumption is lower when the heater is operated or not, based on the input signal, and outputs the calculation result; and calculations from the calculation means. A clothes dryer characterized by comprising a notification means for notifying results. (2) A drum is rotatably installed in the main body, and heated outside air is supplied to the drum via a heater. A clothes dryer including a fan for exchanging heat with the dried material stored in a drum and then exhausting the air to the outside, a motor for driving the drum and the fan, and a detecting means for detecting and outputting the temperature and humidity of the outside air, the heater and A first timer that energizes the motor. a second timer for energizing the motor; inputting the output of the detecting means; and based on this input signal, calculating whether power consumption is lower when the heater is operated or not; If the result of the calculation is that power consumption is lower if the beater is not operated, only the second timer can be operated, and a calculation means for outputting the calculation result, and a calculation result from the calculation means. A clothes dryer characterized by comprising a notification means for notifying.・ (3) A drum is rotatably installed in the main body, and heated outside air is supplied to the drum via a heater. A clothes dryer including a fan for exchanging heat with the drying material stored in a drum and then exhausting the air to the outside, and a motor for driving the drum and the fan, a detection means for detecting and outputting the temperature and humidity of the outside air, A calculation means that inputs the output □ of the discharge means, calculates whether the power consumption is lower when the heater is operated or not, based on this input signal, and outputs the calculation result, from this calculation means. a first timer that energizes the heater and motor trap regardless of the calculation result of the calculation means; and a second timer that energizes the motor regardless of the calculation result of the calculation means. A clothes dryer characterized by being equipped with a timer.