JP3182162B2 - Ironing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ironing device for heating a base in accordance with the actual temperature of a base mounting surface and informing an appropriate temperature.

[0002]

2. Description of the Related Art Conventional irons (for example, see
Japanese Patent Application Laid-Open No. 112588) discloses a configuration in which a base temperature is detected by a temperature detecting element such as a thermistor, and when the detected temperature Tk reaches a set temperature Ts, energization to the heater is stopped as shown in FIG. However, when the power supply time to the heater is long and the temperature rise rate of the base is large as in the case of the initial heating, the base temperature Tb and the detected temperature Tk due to the heat delay.
And the actual temperature difference between the base temperature Tb and the actual base temperature Tb becomes considerably higher than the detected temperature Tk (overshoot).

[0003] In addition, even when the appropriate temperature is notified, the detected temperature Tk is lower than the actual base temperature Tb, so that there is a problem that the notification of the appropriate temperature is delayed even though the base temperature has reached the appropriate temperature range. .

[0004]

SUMMARY OF THE INVENTION The present invention corrects the difference between the detected base temperature and the actual base temperature, even if there is a difference between the detected base temperature and the actual base temperature. , And an ironing device that provides an appropriate temperature notification.

A first invention is a heating means for heating a base, a temperature detecting means for detecting a base temperature using a temperature sensor provided on an inner surface of the base, and a predetermined time receiving an output of the temperature detecting means. A temperature change rate detecting means for detecting a change amount of a base temperature for each, a heating time measuring means for measuring a driving time of the heating means, and a base mounting surface based on an output of the temperature change rate detecting means and the heating time measuring means. In the temperature correction based on the base hanging surface temperature by correcting the temperature difference between the temperature and the base temperature by the temperature detection means, if the temperature change rate by the temperature change rate detection means is large, the temperature difference is increased and the heating time is increased. Correction temperature determining means for calculating the temperature difference to be larger if the length is longer; and adding the temperature value obtained by the temperature detecting means and the temperature difference to estimate the base mounting surface temperature, and Heating or stopping by the heating means is compared with the output of the temperature setting means for setting the source temperature.

A second invention includes a temperature setting means for setting the base to a temperature range suitable for ironing, and a notifying means such as a lamp and a buzzer, wherein the notifying means sets the base temperature by the temperature setting means. It notifies when the temperature is within the set temperature range and when the base temperature is a temperature suitable for ironing based on the base temperature and the correction temperature.

[0007]

According to the first aspect, a correction temperature, which is a difference between the detected base temperature and the actual base temperature, is obtained in accordance with a change in the detected base temperature, and the control temperature output from the temperature setting means or the detected temperature. The corrected base temperature is corrected according to the corrected temperature, and the heating control is performed in accordance with the actual base temperature.

According to the second aspect, a correction temperature, which is a difference between the detected base temperature and the actual base temperature, is obtained in accordance with a change in the detected base temperature, and an appropriate temperature determination temperature output from the temperature setting means, or The detected base temperature is corrected in accordance with the corrected temperature, and an appropriate temperature display based on the actual base temperature is executed.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, (1) is a switch (14)
The temperature setting means for setting the temperature of the base (10) according to the operation of (1) outputs the base control temperature Ts and the appropriate temperature judgment temperature Tt. (2) is a temperature detecting means composed of a thermistor or the like fixed to the upper surface of the base (10).
Is output. (3) is the detected temperature T of the temperature detecting means (2).
k and the actual temperature Tb of the hanging surface (11) of the base (10)
A temperature change rate detecting means (4) for obtaining a correction temperature ΔTs for correcting a temperature difference between the temperature detecting means (2) and an output change of the temperature detecting means (2) every predetermined time (3 seconds). A heating time measuring means (5) for measuring a heating time of the base (10), and a temperature change rate detecting means (4);
The correction temperature ΔTs is determined based on the output of either or one of the heating time counting means (5) and the heating time counting means (5). (6) heating means such as a heater for heating the base (10);
(7) is a notifying means composed of an LED lamp (12), a buzzer (13) and the like.

(8) Heating control means for controlling the heating means (6) based on the base control temperature Ts, the detected temperature Tk, and the correction temperature ΔTs. (9) is an appropriate temperature notification control unit that controls the notification unit (7) based on the appropriate temperature determination temperature Tt, the detected temperature Tk, and the correction temperature ΔTs.

The operation of the above configuration will be described. When the user sets a desired temperature, the temperature setting means (1) controls the control temperature Ts and the appropriate temperature determination temperature Tt according to the setting.
And the notification means (7) blinks the LED lamp corresponding to the setting to indicate that the temperature is not yet appropriate. Then, the heating of the base (10) is started by the heating means (6), and as shown in FIG. 3, the base mounting surface temperature Tb and the detected temperature Tk of the temperature detecting means (2) rise. At the same time as the heating is started, the heating time measuring means (5) starts measuring the heating time. The temperature change rate detecting means (4) detects a change in temperature every three seconds. As shown in FIG. 3, the difference between the base mounting surface temperature Tb and the temperature Tk of the temperature detecting means (2) increases, and the difference increases as the temperature rise rate increases and the heating time increases. .

Utilizing this characteristic, the correction temperature determining means (3) calculates the temperature gradient dT / dt which is the output of the temperature change rate detecting means (4) and the output t of the heating time measuring means (5).
The temperature Tk detected by the temperature detecting means (2) and the base mounting surface (1
The difference from the temperature Tb in 1) is estimated every three seconds by fuzzy inference, and the correction temperature ΔTs is sequentially obtained.

Here, the determination of the correction temperature ΔTs using the fuzzy inference rule will be described. In the present embodiment, as the first input, the output t of the heating time timer (5) (hereinafter referred to as the ON time INP1), The output dT / dt (hereinafter referred to as a temperature gradient INP2) of the temperature change rate detecting means (4) is set as the second input, and the temperature detected by the temperature detecting means (2) and the base surface are set as the output (OUT). The correction temperature ΔTs indicating the temperature difference of (11) is set, and nine rules shown in FIG. 4 are set in advance.

If two rules are shown, one example is that the heating time INP1 of the heating means (6) is long (L) and the temperature gradient IN
If P2 is large (L), the correction temperature ΔTs is increased (L), and (if INP1 = Lan
dINP2 = L then OUT = L). In another example, the heating time INP1 of the heating means (6) is short (S), and the temperature gradient INP2 is almost 0 (Z
N), the correction temperature ΔTs is set to approximately 0 (ZN), and (if INP1 = S and INP2)
= ZN then OUT = ZN).
The control rule shown in such an ambiguous expression is shown in FIG.
As shown in (1), it is quantitatively expressed by a membership function, and can be processed using, for example, the MAX-MIN composite centroid method.

The heating control means (8) adds the correction temperature ΔTs to the output Tk of the temperature detection means (2) to obtain an estimated temperature Th of the base mounting surface (11), and calculates the estimated temperature Th and the control temperature Ts. When Th becomes higher, the heating by the heating means (6) is stopped (the temperature (Th ') obtained by subtracting the correction temperature △ Ts from the control temperature Ts and the detected temperature Tk of the temperature detecting means (2)). And heating may be stopped when the detected temperature Tk becomes higher). When the heating is stopped, the heating time measuring means (5) stops measuring the time and keeps the measured time until then.

Therefore, the temperature difference between the base control temperature Ts and the detected temperature Tk when the heating of the heating means (6) is stopped changes sequentially according to the heating state of the base (10). For example, at the time of initial heating, the temperature difference becomes large, and the detected temperature T
When k is much lower than the base control temperature Ts, heating is stopped to prevent overshoot, and after reaching the set temperature, the temperature difference becomes small, and heating is performed when the detected temperature Tk is substantially equal to the base control temperature Ts. Is stopped to enable accurate temperature control.

The appropriate temperature notification control means (9) compares the estimated base surface temperature Th with an appropriate temperature judgment temperature Tt,
When the temperature becomes equal to or higher than the appropriate temperature determination temperature Tt, L of the notification means (7)
The ED lamp is changed from blinking to lighting, and the user is notified that the temperature is within the proper temperature range. Similarly, the estimated base surface temperature Th and the base control temperature Ts are compared, and when Th becomes higher, the buzzer of the appropriate temperature informing means (7) notifies that the temperature has become appropriate. The notification by the buzzer is L
It may be at the same time as changing the ED lamp from blinking to lighting.
Also in this case, similarly to the case of the above-described heating stop, the comparison between the temperature Tt ′ or Th ′ obtained by subtracting the correction temperature ΔTs from the appropriate temperature determination temperature Tt or the control temperature Ts and the temperature Tk detected by the temperature detecting means (2). May go.

When the temperature of the base begins to drop and the temperature change rate detecting means (4) detects that the change in the detected temperature Tk has become negative, the correction temperature determining means (3) performs correction while the temperature change is negative. The temperature ΔTs is set to 0, and at the same time, the contents of the heating time counting means (5) are reset. As a result, the estimated base surface temperature Th becomes the same as the output Tk of the temperature detecting means (2), but if the estimated temperature Th is lower than the control temperature Ts, heating is started again by the heating means (4). Will be.

In this embodiment, the correction temperature between the base mounting surface temperature and the detected temperature is obtained by the fuzzy inference rule according to both the detected temperature gradient and the heating time. The same effect can be obtained by using one of them, or by obtaining it by another operation other than the fuzzy inference rule. The time when the correction temperature ΔTs is set to 0 is defined as when the temperature gradient dT / dt becomes negative. However, depending on the performance of heat conduction between the base and the temperature detecting means, the correction temperature ΔTs becomes equal to or less than a predetermined positive value or becomes 0. Sometimes it is better to do so.

[0020]

As described above, according to the first aspect of the present invention, the correction temperature, which is the difference between the detected base temperature and the actual base temperature, is obtained in accordance with the change in the detected base temperature. The output control temperature or the detected base temperature is corrected according to the correction temperature, and the heating control in accordance with the actual base temperature can be performed, and the base temperature is significantly higher than the set temperature. The situation that the clothes are damaged can be prevented beforehand.

According to the second aspect of the present invention, the correction temperature, which is the difference between the detected base temperature and the actual base temperature, is determined in accordance with the change in the detected base temperature, and the appropriate temperature determination temperature output from the temperature setting means is determined. Alternatively, the detected base temperature can be corrected according to the corrected temperature, and an appropriate temperature display can be executed in accordance with the actual base temperature. Can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a sectional view of the embodiment.

FIG. 3 is an explanatory diagram for explaining the operation of the embodiment.

FIG. 4 is an explanatory diagram showing rules of fuzzy control.

5A and 5B show membership functions of fuzzy control. FIG. 5A is a relationship diagram showing membership of INP1, FIG. 5B is a relationship function showing membership of INP2, and FIG. 5C is a relationship diagram showing membership of OUT.

FIG. 6 is an explanatory diagram for explaining an operation of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Temperature setting means 2 Temperature detection means 3 Correction temperature determination means 6 Heating means 7 Notification means 8 Heating control means 9 Suitable temperature notification control means

Continuation of front page (56) References JP-A-3-77592 (JP, A) JP-A-3-51100 (JP, A) JP-A-63-279900 (JP, A) (58) Fields studied (Int .Cl. ⁷ , DB name) D06F 75/26

Claims (2)

(57) [Claims] 1. A heating means for heating a base, a temperature detecting means for detecting a base temperature using a temperature sensor provided on an inner surface of the base, and a base temperature for every predetermined time receiving an output of the temperature detecting means. and temperature change rate detecting means for detecting a change amount of the heating time counting means for counting the drive time of the heating means, the temperature of the base seat surface by the output of the temperature change rate detecting means and the heating time measuring means and said temperature
Correct the temperature difference from the base temperature by the detection
Temperature control is performed according to the temperature of the hanging surface.
If the temperature change rate by the temperature change rate detection means is large, the temperature difference
A large compensation temperature determination means for heating time is calculated as the temperature difference becomes larger the longer the, estimated the temperature of the base seat surface by adding the temperature difference between the temperature value by the temperature detecting means
An ironing device comprising a control means for performing heating or stopping by the heating means in comparison with an output of a temperature setting means for setting the base temperature . 2. A temperature range suitable for ironing the base.
Temperature setting means to be set to the
And a notifying means , wherein the notifying means sets the base temperature to the temperature setting.
When the temperature is within the temperature range set by the
The base temperature is determined based on the air temperature and the correction temperature.
The ironing device according to claim 1, wherein the notification is made when the temperature is suitable for hanging .