JPH0557098A - Iron - Google Patents

Abstract

PURPOSE:To prevent accidents when supplying power again by detecting how an iron is placed on an ironing board, and holding the heater of the iron in a state in which electricity is not transmitted thereto when a power non-supply state is detected for a longer period of time than a preset time. CONSTITUTION:When a placement switch 7 is turned off the temperature control processing of a cord-equipped mode is carried out. When the placement switch 7 is turned on, the temperature control processing of a cordless mode is carried out and a heater 24 is controlled by an electricity transmission control switch 23 according to temperature setting by a setting switch 12 and temperature detected by a thermistor 26. When the placement switch 7 is turned off and a placement switch flag is 1, the power sign display processing of a cordless lift mode is carried out within a predetermined temperature range with respect to set temperature. Either when the placement switch 7 is turned on or when the placement switch flag is 0, outage time is measured and when the outage time is longer than a predetermined time the setting switch is turned off and outage is indicated in a display portion 11b. Therefore accidents can be prevented when power is supplied again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ironing device which can be used as a cordless iron.

[0002]

2. Description of the Related Art In an ironing device which can be used as a conventional cordless iron consisting of an iron body and an ironing board, a microcomputer constituting a main body of a control unit is provided on the ironing board so as to detect a temperature of an ironing surface of a base of the iron body. It was designed to be installed on the iron body because the temperature cannot be controlled.

In such an ironing device, the microcomputer is backed up by a charging power source during cordless operation so that the temperature of the ironing surface of the base can be grasped and the temperature can be controlled.

[0004]

However, for example, in such an ironing device, even when the iron body is placed on the ironing board and the outlet plug cord for inputting electric power from the commercial power source is pulled out to cause a power failure, the iron body is Since the microcomputer of is backed up, it was not possible to grasp the power outage condition.

Therefore, for example, a user of an ironing device
When the iron body is placed on the ironing board and the power switch for turning on / off the power supply to the heater for heating the base of the iron body is not turned off and the power cord of the ironing board is disconnected from the outlet, the microcomputer is in a power failure state. The power switch is still in the ON state because it cannot be grasped. Therefore, when the power cord of the ironing board is inserted into the outlet next time, the power switch remains in the ON state, so that the heater of the iron body is suddenly energized, which may cause an accident.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an ironing device capable of detecting the power supply state from the ironing board and grasping the power failure state in the iron body, thus preventing the occurrence of an accident when the power is turned on again.

[0007]

SUMMARY OF THE INVENTION The present invention provides an iron body having a base forming an ironing surface, a heater for heating the base, and a charging power source for supplying electric power to the heater, and an iron body. In an ironing device in which an ironing board on which the body is placed is provided, and when the ironing body is placed on the ironing board, the charging power is supplied to the ironing body by power supply from the ironing board, the ironing body is mounted on the ironing board. When the placement detection means detects the placement state, the energization detection means that detects the power supply from the ironing board, and the placement detection means detects the placement state on the ironing board, the energization detection means indicates the non-power supply state. Provided with non-energization control means for deactivating the heater of the iron body when a time longer than a preset time is detected It is intended.

[0008]

In the present invention having such a structure, the placement detecting means detects the placement state of the iron body on the ironing board. The power supply detecting means detects the power supply from the ironing board of the iron body.

When the placement detecting means detects the placement state of the iron body on the ironing board, the energization detecting means detects the non-power supply state from the ironing board of the iron body for a time longer than a preset time. At this time, the heater of the iron body is de-energized by the de-energizing control means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1A is an external view when the ironing device to which the present invention is applied is used as a cordless iron, and FIG. 1B is an external view when the same ironing device is used as a corded iron. Is.

The iron body 1 is placed on the ironing board 2 at a predetermined angle. The ironing board 2 is adapted to input an alternating current from a commercial power source by means of an outlet plug cord 3. The alternating current input from the outlet plug cord 3 is applied to the ironing board 2
In the above, when the iron body 1 is placed, the power input terminals 4 provided on the iron body 1 are connected by wires inside the ironing board so that the power input terminals 4 are supplied to the fitted power output terminals 5. Also the ironing board 2
Is provided with a power output plug 6 with a cord that can be fitted into the power input terminal 4 of the iron body 1, and the cord of the power output plug with a cord is also connected to the power output terminal 5 by wiring. .. Further, the ironing board 2 is provided with a protruding member 8 for turning on a switch of a placement switch 7 as a placement detecting means provided on the iron body 1 when the iron body 1 is placed. ..

A base 9 forming an ironing surface is provided on the bottom of the iron body 1, and an electric circuit 10 such as a controller is built in on the top of the bottom 9 and an indicator 11 is provided on the surface. A setting switch 12 is provided. The display 11 and the setting switch 12 as well as the power input terminal 4 and the placement switch 7 are electrically connected to the electric circuit 10. FIG. 2 shows a block diagram of the circuit configuration.

Reference numeral 21 denotes a controller 21 composed of a microcomputer 21a which constitutes the main body of the control unit and a RAM (random access memory) (not shown).
Is. The alternating current input from the outlet plug cord 3 is supplied to the iron body 1 via the power output terminal 5 and the power input terminal 4, and the power supply line from the power input terminal 4 is connected to the controller 2
It is connected to a heater 24 that heats the base 9 through an energization control switch 23 controlled by 1 and also to a power supply circuit 22. An alternating current is converted into a stabilized direct current by the power supply circuit 22, and the stabilized direct current is charged in a charging circuit 25 as a charging power source and supplied to the controller 21.

The controller 21 includes a thermistor 26 for detecting the temperature of the base 9 and the setting switch 12
And a power sign 11a and L for displaying the temperature of the base by inputting an electric signal from the placement switch 7.
The display 11 and the buzzer 27, which are constituted by a CD (liquid crystal display) display section 11b, are controlled. In addition, the controller 21 also includes the power supply circuit 2
In 2, the electric signal output from the energization detection circuit 28 as the energization detection means for detecting the energization state is input. FIG. 3 shows the microcomputer 21a.
The flowchart of the main part process which is performed by is shown. First, the controller 2
The RAM etc. provided in 1 are cleared and the initial settings are made. Next, at step 1, it is judged from the output signal of the energization detection circuit 28 whether or not energization is being performed.

When power is on, at the input / output port,
Processing of a signal input by the input port and processing of outputting a signal from the output port are performed, processing of reading the data obtained by detecting the temperature of the base 9 by the thermistor 26, and processing of timers are performed. Is becoming

Next, it is determined whether or not the setting switch 12 is read, that is, it is determined that the reading is not performed when the setting switch 12 is in the "OFF" state, and if the setting switch 12 is other than "OFF". It is determined to read. When it is determined that the setting switch 12 is read, processing such as base temperature setting is performed based on the setting of the setting switch 12. When it is determined that the setting switch 12 is not read, the process directly proceeds to the next process.

Next, it is judged whether or not the mounting switch 7 is on, and if the mounting switch 7 is not on (if it is off),
The mounting switch flag (SwF) formed in the RAM provided in the controller 21 is set to "0", and the temperature control process in the coded mode is performed. That is, the energization control switch 23 is controlled based on the temperature setting of the setting switch 12 and the temperature detected by the thermistor 26 to control the energization of the heater 24. At this time, when the temperature is set by the setting switch 12 (not in the “OFF” state), when the temperature detected by the thermistor 26 first reaches the temperature set by the setting switch 12, for example, as shown in FIG. As shown in FIG. 4 (a), the setting switch 12
When the set temperature A is first reached by B, the process of driving the buzzer 27 is performed. And thermistor 2
When the temperature detected by 6 enters into a predetermined temperature range (level) with respect to the set temperature A as shown in FIG. 4A, the power sign 11a is displayed as shown in FIG. 4C. Performs power sign display processing in coded mode. In particular, after the time point B when the set temperature A is reached, the display of the power sign 11a is fixed to the full power display (level 4). Then, the process returns to the process of the step 1 for judging whether or not the power is being supplied.

When it is determined whether the mounting switch 7 is on or not, if the mounting switch 7 is on, the mounting switch flag is set to "1", and the temperature control process in the cordless mode is performed. That is, based on the temperature setting of the setting switch 12 and the temperature detected by the thermistor 26, the energization control switch 23 is controlled to control the energization of the heater 24. At this time, when the temperature is set by the setting switch 12, the temperature detected by the thermistor 26 is
Every time the temperature set by the setting switch 12 is reached, the buzzer 27 is always driven. For example, in FIG.
As shown in (b), the buzzer 27 is driven at the time B when the temperature detected by the thermistor 26 at the time of mounting reaches the set temperature A. Then, when the temperature detected by the thermistor 26 falls within a predetermined temperature range with respect to the set temperature A, for example, as shown at the time of "placement" in FIG. 4B, the power sign as shown in FIG. The power sign display process in the cordless mounting mode for displaying 11a is performed. Then, the process returns to the process of determining whether or not the energization is being performed in step 1 again.

When it is judged in the step 1 whether or not the power is being supplied, if the power is not being supplied,
Processing of a signal input from the input port and processing of outputting a signal from the output port are performed.

Next, it is determined whether the mounting switch 7 is on or whether the mounting switch flag is "0". When the mounting switch 7 is not on (off) and the mounting switch flag is not "0"("1"), the temperature data detected by the thermistor 26 is read and the data is read. Based on this, for example, as shown in “at the time of iron lift” in FIG. 4B, when the power temperature is within a predetermined temperature range with respect to the set temperature A, the cordless display 11a is displayed as shown in FIG. 4C. The lift mode power sign display process is performed. Then, the process returns to the process of the step 1 for judging whether or not the power is being supplied.

Further, in determining whether the mounting switch 7 is on or whether the mounting switch flag is "0", at least whether the mounting switch 7 is on or the mounting switch flag is "0". In one case, a power failure process for measuring the power failure time is performed, and when the measured power failure time is longer than the predetermined time, the setting switch 12 is set to "OFF". Next, a power failure is displayed on the LCD display unit 11b, and a backup process for the microcomputer 21a, RAM, etc. is performed. Then, the process returns to the process of the step 1 for judging whether or not the power is being supplied.

In this embodiment having such a structure, even if the temperature is set by the setting switch 12 of the iron body 1, the iron plate 2 is placed on the ironing board 2 and the outlet plug cord 3 is pulled out, the energization is detected. Since the circuit detects non-energization and the placement switch 7 is in the ON state, it is determined that there is a power failure, and the LCD display section 11b displays the power failure. When the power failure continues for a predetermined time, the setting switch 12 is automatically set to "OFF".

If the energization detection circuit 28 detects energization and the placement switch 7 is in the off state, it is determined that the iron body 1 is in the corded mode in which the corded power output plug 6 is connected. When the temperature detected by the thermistor 26 reaches the temperature set by the setting switch 12, as shown in FIG. 4A, the buzzer 27 is driven at the time B at the time of reaching, and the power sign 11
a indicates the full power of level 4 as shown in FIG. 4 (c). After that, even if the temperature detected by the thermistor 26 is lower than the set temperature A, the display of the power sign 11a is fixed to the level 4, and after the temperature is further decreased, the temperature detected by the thermistor is set again to the set temperature A. The buzzer will not be driven even when it reaches.

Furthermore, when energization is detected by the energizing circuit 28 and the mounting switch 7 is in the ON state, and when the energizing circuit 2 is turned on.
When the non-energization is detected by 8 and the placement switch 7 is in the off state, it is determined that the iron body 1 is in the cordless mode in which the corded power output plug 6 is not connected. Each time the temperature detected by the thermistor 26 reaches the temperature set by the setting switch 12, FIG.
As shown in (b), at the time point B, the buzzer 27 is driven. Then, in the power sign 11a, FIG.
As shown in FIG. 4B, the display is controlled as shown in FIG. 4C as the cordless placement mode or the cordless lift mode according to the level entered at each time point.

As described above, according to the present embodiment, the energization detecting circuit for detecting the power supply from the ironing board 2 to the iron body 1 and the placement for detecting whether the iron body 1 is placed on the ironing board 2 or not. By providing the switch 7, the iron body 1 can distinguish and grasp the cordless state and the corded state, and can detect a power failure that occurs when the iron body 1 is placed on the ironing board 2. ..

Therefore, if the time during which the power failure is occurring becomes longer than the predetermined time, the setting switch 7 of the iron body 1 is set to "OFF" so that the heater is suddenly energized when the power is turned on again. There is no risk of accidents.

Further, since the iron body 1 can distinguish and grasp the cordless state and the corded state, by changing the driving of the buzzer 27 and the display of the power sign 11a as a mode according to each state, It is possible to improve usability for the user.

[0029]

As described in detail above, according to the present invention,
In the iron body, it is possible to provide an ironing device capable of detecting the power supply state from the ironing board and grasping the power failure state, thus preventing an accident from occurring when the power is turned on again.

[Brief description of drawings]

FIG. 1 is an external view showing a cordless mode and a corded mode according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of the embodiment.

FIG. 3 is a diagram showing a flow of main part processing of the embodiment.

FIG. 4 is a view showing a display level at a base temperature, a buzzer timing, and a display of a power sign corresponding to the display level in the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Iron main body, 2 ... Ironing board, 4 ... Power input terminal, 5 ... Power output terminal, 6 ... Power output plug with a cord, 7 ... Placement switch, 8 ... Projection member, 9 ... Base, 1
1a ... power sign, 12 ... setting switch, 21a ... microcomputer, 22 ... power supply circuit, 24 ... heater,
25 ... Charging circuit, 26 ... Thermistor, 27 ... Buzzer, 2
8 ... Energization detection circuit.

Claims (1)

[Claims] 1. An iron main body having a base forming an ironing surface, a heater for heating the base, and a charging power source for supplying electric power to the heater, and an iron board on which the iron main body is placed. An ironing device provided, wherein when the iron body is placed on the ironing board, charging is performed to the charging power source of the iron body by power supply from the ironing board, the iron body is placed on the ironing board. When the placement detection means for detecting the state, the energization detection means for detecting the power supply from the ironing board, and the placement detection means for detecting the placement state on the ironing board, the energization detection means does not supply power. When the supply state is detected for a time longer than the preset time, the heater of the iron body is turned off. An ironing device characterized by being provided with control means.