JPS62148698A - 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 Field of Industrial Application The present invention relates to a clothes dryer for general household use.

BACKGROUND OF THE INVENTION Conventionally, as shown in Fig. 6, in this divine clothes dryer, after the drying operation starts, the temperature inside the drum gradually rises, and after a certain period of time, the temperature does not change for a certain period of time. Taking advantage of the fact that the temperature rises again, the drying rate is 1 when the increase value ΔTa is detected.
It was common to use a system in which drying was completed at that point.

Problems to be Solved by the Invention In such conventional methods, the drying time required to complete the drying varies depending on the type and amount of drying material, and the user has to wait until the drying completion display is displayed. There was a problem in that no information could be obtained as to whether or not the program would end.

The present invention solves these problems by using information from sensors attached to the dryer at the start, middle, and end of the drying operation to calculate the estimated drying end time, remaining time, and time. The purpose of this is to inform the user of the drying time by informing the user of the time, etc., and to realize an easy-to-use dryer.

Means for Solving the Problem In order to solve this problem, the present invention uses a temperature sensor, a humidity sensor, etc. to detect the dry state, and monitors the state of the sensor every fixed period of time after the start of operation. Using the contents of the drying state storage means to be stored, a functional formula etc. for calculating the fluctuation state of each sensor at a fixed time interval is prepared, and the functional formula can be freely changed according to each time point after the start of drying operation. Instead, an output means is provided to predict the estimated completion time with higher accuracy and display the contents.

Effect With the above configuration, a dryer that is easy for the user to use is realized by predicting the time until the end of drying according to the type and amount of clothes. will be displayed.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to FIGS. 1 to 6. In FIG. 3, when the drying operation of the drum 2 installed inside the dryer main body 1 is started, the internal temperature thereof gradually rises as shown in FIG. However, as the drying progresses to a certain extent, it begins to show a steady state as shown by the H state. Before reaching a steady state (state 1 in Figure 2), the slope of the temperature rise in the drum varies depending on the type and amount of cloth, so generally ΔT/Δt in Figure 2 is If it is large, it indicates that the amount of cloth is small, and the drying end time can be determined by giving a constant from a function calculation obtained from empirical values to ΔT/Δt, etc., to obtain an approximate drying end time near the start of drying. can. Next, since the temperature inside the drum remains constant during the drying process, it is difficult to predict the time from temperature changes to the end of drying. It is desirable to predict the drying end time using changes in conditions such as the following. Figure 4 shows the change in the number of times the cloth touches the electrode sensor in a given period of time.As the drying rate increases, the damp part of the cloth gradually comes into contact with the electrode sensor. As the number of times the drying process decreases, we tried to estimate the current drying state from the number of times the electrode sensor is touched and predict the end time by extension. Near the end of drying, it seems to be more advantageous to adopt the temperature sensor state shown in Figure 2 again, considering the conspicuousness of the change in state, but in general, when the state of ■ in Figure 2 is reached, Since the drying rate is 90 to 96% or more, the drying completion time is predictable and it seems possible to achieve a fairly accurate drying time.

The control section 4 in FIG. 3 includes a drying state detecting means 5, a drying state storing means 6, a drying end predicting means 7, and a drying end predicting display means 8, as shown in FIG. The transition curves shown in Figures 2 and 4 are likely to change not only depending on the type and amount of cloth, but also due to the ambient temperature, etc., so we have provided a level display as shown in Figure 5, which is difficult to predict. It would be easier for the user to judge the drying time by indicating a low level in the case of a change or in the early stages of drying. In addition, the estimated remaining time is displayed as the average estimated time for a certain period of time, so that the estimated remaining time does not change drastically in a short period and the expected end time increases or decreases every hour. , the remaining time display will count down as time passes,
For example, it would be better to reset the settings again every 10 minutes.

Note that there are situations in which it is not possible to predict the end of drying in the early stages of drying, so in that case, the remaining time display in Figure 5 is displayed, and the means for predicting the end of drying are the temperature sensor, humidity sensor, and It is easy to think of simultaneous determination using electrode sensors.

Effects of the Invention As described above, according to the present invention, the expected time for completion of drying can be displayed as the remaining time or the time, so the user can take action according to the approximate time for completion of drying, and This makes the machine easier to use.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the main parts of a clothes dryer according to an embodiment of the present invention, and Fig. 2 is a block diagram showing the main parts of a clothes dryer according to an embodiment of the present invention. Figure 3 shows the dryer main body, drum, and electrode sensor installation state, and Figure 4 shows an embodiment of the present invention.
Fig. 6 is a front view of the expected drying end time display unit according to an embodiment of the present invention, Fig. 6 is a diagram showing the change in the temperature in the drum using the electrode sensor. FIG. 6...Dry state detection means, 6...Dry state storage means, 7...Drying end prediction means, 8...
...Means for predicting the end of drying. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3 Figure 4 Figure 5 Figure 6 Ginτ

Claims (1)

[Claims] a drying state detecting means; a drying state storing means for storing data outputted from the drying state detecting means at a plurality of predetermined times after the start of the drying operation; and an estimated time until the end of drying based on information in the drying state storing means. A clothes dryer comprising a drying end prediction means for determining a drying end prediction means, and a drying end prediction display means for displaying an expected drying end time given by the drying end prediction means.