JPS6325000A - Clothing dryer - Google Patents

Abstract

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

Description

[Detailed description of the invention] Industrial applications The present invention relates to a clothes dryer.

BACKGROUND OF THE INVENTION Conventionally, a clothes dryer of this scale is constructed as shown in FIGS. 5 to 7. In FIG. 5, reference numeral 1 denotes a main body for drying clothes, and inside this main body 1 there is provided a rotating drum 2 for accommodating and stirring the clothes. A heat exchange fan 3 is provided at the rear of the rotating drum 2, and as the fan 3 rotates, air heated by a heater 4 is introduced from the front of the rotating drum 2, and moist air that has passed through the rotating drum 2 is removed. It is designed to be discharged. At the rear of the rotary drum 2 and at the inlet of exhaust gas to the heat exchange fan 3, a first
A second temperature sensor 5 is provided at the outlet of the exhaust air from the heat exchange fan 3 in front of the rotating drum 2.
A sensor 6 is provided, and the temperatures detected by the first and second temperature sensors Fj-56 and 6 normally change as shown in a and b shown in FIG. Here, express the change in the difference C between a and b! 5 to determine the drying rate of the clothes and automatically terminate the operation.

When there are few hanging clothes stored inside the rotating drum 2, the temperature inside the rotating drum 2 tends to rise. but,
If the temperature rises too much, it will have a negative effect on clothing, so
When the temperature detected by the temperature sensor 5 reaches a set value, the heater 4 is controlled to control the temperature inside the rotating drum 2.

At this time, the temperature change is not as shown in FIG. 6, so the operation is continued for t hours from the time when the temperature value d detected by the first QU sensor 5 reaches the set value A, as shown in FIG. Continue to finish drying.

Problems to be Solved by the Invention In such a conventional configuration, the time it takes for the first temperature sensor 5 to reach the set temperature A is affected by the ambient temperature in which the aircraft is located. Even if you try to dry the clothes, the ambient temperature may cause the clothes to dry too much.
There was a problem with insufficient drying.

The present invention solves these problems by setting the operating time after reaching the set temperature during operation according to the ambient temperature in which the object is placed, thereby eliminating the influence of the ambient temperature. The purpose is to do so.

Means for Solving the Problem In order to solve this problem, the present invention provides a rotating drum for containing and stirring the material to be dried, and a rotary drum 114 of the rotating drum.
a heater provided on one side to serve as a heat source; a heat exchange fan provided at the rear of the rotating drum to introduce hot air from the heater into the rotating drum; and a second heat exchange fan provided at an exhaust inlet to the heat exchange fan. 1 temperature sensor and a second temperature sensor provided at the outlet of exhaust gas from the heat exchange fan, and depending on the temperature value detected by the first and second humidity sensors at the initial stage of operation. The device is configured to estimate the temperature of the atmosphere in which the body is placed, and after the temperature value detected by the first temperature sensor during operation reaches a set value, the operation continues for a period of time set by the ambient temperature. This is what I did.

Function: With this configuration, the operation can be automatically terminated after an appropriate drying time without being affected by the ambient temperature.

EXAMPLE Hereinafter, an example of the present invention will be explained using the drawings (Figs. 1 to 4).
The explanation will be based on Figure). First, in Figure 2, 11
1 is a clothes drying machine main body, and inside this main body 11, a rotating drum 12 for accommodating and stirring clothes is provided. A heat exchange fan 13 is provided behind the rotary drum 12, and the rotation of the fan 13 causes air heated by a heater 14 provided in front of the rotary drum 12 to be introduced from the front of the rotary drum 12. The humid air that has passed through 12 is discharged. A first temperature sensor 15 is provided at the inlet of the heat exchange fan 13 at the rear of the rotating drum 12.
A second temperature sensor 16 is provided at the outlet of the exhaust gas from the heat exchange fan 13 in front of the heat exchange fan 13 .

In drying clothes with the above configuration, as shown in the circuit diagram shown in FIG.
The microcomputer 17 controls the heater circuit 18 and motor circuit 19. When the number of clothes inside the rotating drum 12 is normal, the first temperature sensor 15 and the second temperature sensor 16
The detected temperature changes as shown in e and f shown in FIG. Here, the drying rate of the clothes is determined by calculating the change in the difference q between e and f by the microcomputer 17, and the operation is automatically terminated. In addition, the first and second temperature sensors 15 at the initial stage of operation
It can be said that the temperature value B detected at 16 and 16 is approximately equal to the ambient temperature in which the aircraft is placed.

When there are few hanging clothes inside the rotating drum 12, the first temperature sensor 15 and the second temperature sensor 16 are switched to the fourth temperature sensor.
As shown in the figure, it changes as shown in i. Since the amount of clothing inside the rotary drum 12 is small, the temperature inside the rotary drum 12 tends to rise, and while the microcomputer 17 is calculating the change in the difference j between h and 1, the value of h becomes the humidity. The adjustment set value C is reached. In this case, operation continues for one hour from the time when C is reached. Here, this one hour is not a fixed time, but a time set based on the ambient temperature B. In other words, there is a relationship T=K(B) (where K
is a constant). Regarding how to find B, h at the beginning of operation.
If the values of and i match, and immediately after that, both values tend to rise, it can be determined that the value at the beginning of operation represents the ambient temperature. However, if the d body is operated continuously or if Since the humidity change at the beginning of operation becomes a little complicated when cold clothes are put in, etc., it is necessary to calculate the rate of change of the first and second temperature sensors 15 and 16 to more accurately calculate the ambient temperature B. is also possible.

Effects of the Invention As described above, according to the present invention, by using the same two temperature sensors as in the past, even when there are few hanging clothes in the rotary drum, drying can be done in an appropriate time without being affected by the ambient temperature. The operation can be automatically terminated, eliminating the problem of over-drying or under-drying clothes as in the past.

[Brief explanation of drawings]

Figures 1 to 4 show one embodiment of the present invention.
The figure is a circuit configuration diagram for drying clothes, Figure 2 is a vertical cross-sectional view of the clothes dryer, Figure 3 is a graph showing the temperature-time characteristics of the clothes dryer, and Figure 4 is a small amount of clothes in the clothes drying filter. Graphs showing temperature-time characteristics in the case of , Figures 5 to 7 show conventional examples, and Figure 5 shows the temperature-time characteristics in the case of clothes drying! 1. Another vertical sectional view, FIG. 6, is a graph showing the temperature-time characteristics of the clothes dryer, and FIG. 7 is a graph showing the temperature-time characteristics when there is a small amount of clothes in the clothes dryer. 11... Clothes dryer main body, 12... Rotating drum, 1
3... Heat exchange fan, 14... Heater, 15...
1st temperature sensor, 16... 2nd temperature sensor agent Yoshihiro Morimoto 1st circle 3rd time 4th figure 5Ii! Figure 6, Figure 7, Mixed 1 Kanoma

Claims (1)

[Claims] 1. A rotating drum that accommodates and stirs the material to be dried, a heater that is installed in front of this rotating drum and serves as a heat source, and a heater that is installed behind this rotating drum that introduces hot air into the rotating drum. a heat exchange fan; a first temperature sensor provided at an inlet of exhaust gas to the heat exchange fan; and a second temperature sensor provided at an outlet of exhaust gas from the heat exchange fan; The ambient temperature in which the aircraft is located is estimated based on the temperature values detected by the first and second temperature sensors, and the temperature value detected by the first temperature sensor reaches a set value during operation. The clothes dryer is configured to continue operating for a period of time set based on the ambient temperature.