JP3208749B2 - 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 improvement in an ironing device which can be used as a corded or cordless iron.

[0002]

2. Description of the Related Art Generally, a cordless iron having no cord in an iron body is disclosed in, for example, Japanese Utility Model Laid-Open No. 3-12809.
As disclosed in, for example, Japanese Patent Application Laid-Open Publication No. 9-205, a control unit equipped with a microcomputer and a backup power supply for driving the control unit when power supply from alternating current is stopped are incorporated, and a base heated by a heater is provided. Provide an iron body having an ironing board on which the ironing body is placed, and in a state where the ironing body is placed on the mounting table, energize a heater of a base in the ironing body to store heat in the base, and store the heat on the base. Ironing is performed by the stored heat. Also, by providing a power output plug with a cord on the mounting table and fitting this plug to the power input terminal of the iron body, it is also possible to use it as an iron with a cord. A state detecting means, such as a mounting switch, for detecting a state, and an energization detecting means for detecting the supply of AC current are provided. Based on output data from the state detecting means and the energization detecting means, the control means determines various modes. It is configured to perform.
For example, when the mounting switch is on and the ironing body is mounted on the ironing board, and the power supply detecting means detects the stop of the power supply, the control means disconnects the outlet or the power is cut off. Can be determined. Also, when the mounting switch is off,
When the energization detecting means is switched on or off, it is possible to determine whether the outlet is plugged in or unplugged in the corded mode in which the power output plug is attached to the iron main body. Accordingly, the control unit controls the energization of the heater and performs various displays on the display.

[0003]

In the prior art, for example, the iron main body is placed on an ironing board, and the iron main body is removed from a state where power is supplied to the iron main body directly through the ironing board. When detached from the ironing board, the energization detecting means detects the stop of power supply while the mounting switch is on, and the energization detecting means stops the power supply after the mounting switch is switched from on to off. Since detection may occur, different modes are determined by the control unit depending on the direction in which the iron body moves. That is, the order in which the mounting switch and the energization detecting means are switched on and off is artificially and randomly changed even when the same operation is performed.
In particular, if the temporal priority of the output data to be detected is not clear, the control means is likely to make an erroneous determination. For this reason, in order to reliably perform the mode determination, it is necessary to further provide a plurality of detection units, and there is a problem that the mode determination procedure of the control unit is complicated.

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide an ironing device capable of reliably performing a mode determination without providing additional detecting means.

[0005]

SUMMARY OF THE INVENTION The present invention incorporates a control means equipped with a microcomputer and a backup power supply for driving the control means when power supply from an alternating current is stopped, and a base heated by a heater. And an ironing board on which the ironing body is placed, wherein the ironing body is attached to the ironing board.
Power supply to this iron
Check that it is connected to the intended corded power supply.
Output state detection means, and the iron book of the alternating current
Based on the output data of the current detecting means for detecting the power supply to the body, the ironing device configured to perform mode determination by said control means, said control means said microcomputer output data from said state detecting means The output data stored a certain time before the current
To keep this output data while constantly updating the data
Also, when the power to the iron body is switched,
A mode determination is performed by reading output data from the state detection means a predetermined time before.

[0006]

[Function] With the above configuration, the iron body is an ironing board.
Or the power supply to this iron body
Is connected to a power supply device with a cord for the purpose of detection by the state detection means, the output data of which is stored in the microcomputer as needed,
This output data is held while constantly updating the output data immediately before . Then, the iron main body by the energization detecting hand stage
When it is detected that the power supply to the iron has been switched, the control means reads output data from the state detection means a predetermined time before the time when the power supply to the iron body is switched, and determines the mode based on the result. I do.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an external view when an ironing apparatus to which the present invention is applied is used as a cordless iron, and FIG. 2 is an external view when the same ironing apparatus is used as a corded iron.

The iron body 1 is mounted on the ironing board 2 at a predetermined angle. The ironing board 2 is configured to input an alternating current from a commercial power supply by an outlet plug cord 3. Reference numeral 4 denotes a power input terminal 4 protruding from the rear surface of the iron main body 1. The power input terminal 4 is fitted to the power output terminal 5 when the iron main body 1 is mounted, and is connected to the outlet plug cord 3. Ironing board 2 so that alternating current is supplied to iron body 1
Are connected by wiring inside. Further, the ironing board 2 has a cord for supplying power to the iron body 1 that can be fitted to the power input terminal 4 of the iron body 1.
A corded power output plug 6 as a power supply device is provided, and the cord of the power output plug 6 is also connected to the power output terminal 5 by wiring. Further, a switch 7 with a cord as a state detecting means for detecting whether or not the power output plug 6 is attached is provided behind the iron main body 1. Reference numeral 9 denotes a base that forms an ironing surface provided on the bottom surface of the iron body 1. On the upper surface of the base 9, an electric circuit 10 such as a controller is built, and a display 11 and a setting switch are provided on the surface. 12 are provided. The display 11 and the setting switch 12 are electrically connected to the electric circuit 10 together with the power input terminal 4 and the mounting switch 7.

Next, the configuration of the electric circuit will be described with reference to FIG. 21 is a microcomputer that constitutes the control unit body
21a, a RAM (random access memory) 21b provided inside the microcomputer 21a, and a controller as a control means including a connection circuit to an input / output device (not shown) and the like. 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 controlled by the controller 21. The power supply circuit 22 is connected to a heater 24 for heating the base 9 via a power cutoff control switch 23. Then, the AC current is converted into a stabilized DC current by the power supply circuit 22, and the stabilized DC current is charged in the charging circuit 25 as a backup power source and supplied to the controller 21. The controller 21 includes a thermistor 26 for detecting the temperature of the base 9, a setting switch 12, and a switch 7 with a cord.
, And controls the display unit 11 and the buzzer 27 each including the power sign 11a for displaying the temperature of the base 9 and the LCD display unit 11b based on the electric signals. The power supply circuit 22 is connected to an energization detection circuit 28 which is an energization detection means for detecting the supply of AC current from the power input terminal 4, that is, the energization. And the electrical signal from the corded switch 7 is transmitted to the RA of the microcomputer 21a.
The data is temporarily stored in M21b for a certain period of time. At this time, the data is updated, but the data before a certain time is always kept.

FIG. 4 and FIG.
5 shows a flowchart of a main part process performed by a. First, the RAM 21b and the like provided in the controller 21 are cleared,
After the initialization is performed, it is determined in step 1 whether or not the power is being supplied, based on the output signal of the power supply detection circuit 28. Then, if being energized, the input and output ports, processing for outputting a signal from the processing and output ports of the input signal by the input port Ru performed. In addition, switch 7 with cord
And reads this data from RAM 21b as needed.
And finally, the data two seconds before the reading time is stored and held. Since the routine always passes during energization, the data two seconds before is updated. In addition, the thermistor 26
, The process of reading the data obtained by detecting the temperature of the base 9 is performed, and the processes of the timers are performed. In step 2, it is determined whether or not the setting switch 12 is to be read. That is, if the setting switch 12 is in the “OFF” state,
It is determined that the setting switch 12 is not to be read, while if the setting switch 12 is other than “OFF”, it is determined that the setting switch 12 is to be read. If it is determined to perform the reading of the setting switch 12, after the processing of the temperature setting of the base 9 is performed based on the setting state of the setting switch 12, the process proceeds to Step 3, reading of the setting switch 12 If it is determined that is not performed, the process directly proceeds to step 3.

In step 3, the output data of the switch with code 7 stored in the RAM 21b of the microcomputer 21a is read, and it is determined whether or not the switch 7 with code is on two seconds before. And
If the switch with cord 7 is on rather than off two seconds before, the power output plug 6 is already on the iron body 1
And the controller 21 performs a temperature control process in the code mode. 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
24 energization control is performed. 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. 6, at the time point B when the temperature setting A by the setting switch 12 is first reached, the buzzer 27 is driven. Based on the temperature detected by the thermistor 26, when entering a predetermined temperature range (level) with respect to the predetermined temperature A, as shown in FIG. Do. In particular, after the point B when the temperature reaches the set temperature A, the display of the power sign 11a is fixed to the full power display (level 4).
The process proceeds to step 1 to determine again whether or not the power is being supplied based on the output signal of the power supply detection circuit 28.

On the other hand, if the switch with cord 7 has been turned off two seconds before in step 3, it is determined that the power output plug 6 has not been attached to the iron body 1 and the controller 21 Performs a temperature control process in a cordless mode. That is, similar to the temperature control process in the code mode, 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 energization of the heater 24. At this time, if the temperature is set by the setting switch 12, the buzzer 27 is driven every time the temperature detected by the thermistor 26 reaches the temperature set by the setting switch 12. For example, FIG.
As shown in FIG. 8, when the iron body 1 is placed on the ironing board 2, when the temperature falls within a predetermined temperature range with respect to the set temperature A, the power as a cordless placement mode for displaying the power sign 11a shown in FIG. Sign display processing is performed. Then, the process returns to step 1 to determine whether the power is being supplied.

If it is determined in step 1 that the power is not being supplied, the input / output port performs processing of a signal input from the input port and processing of outputting a signal from the output port. . When the power is not being supplied, the microcomputer 21a and the controller 21 are operated by the charging power supply 25. In step 4, similarly to step 3, it is determined whether or not the switch with code 7 is on two seconds before, based on the contents stored in the microcomputer 21a. If the switch with cord 7 is off two seconds before, the iron body 1
It is determined that the electrical outlet has been disconnected or the outlet has been unplugged while the iron body 1 is placed on the ironing board 2, and the temperature data detected and detected by the thermistor 26 is read. As shown in “At the time of iron lift”, when the temperature falls within a predetermined temperature range with respect to the set temperature A, the power sign 11a shown in FIG.
Is displayed as a cordless lift mode. Then, the process returns to step 1 to determine whether the power is being supplied.

On the other hand, if the corded switch 7 is already turned on two seconds before in step 4, the power supply is stopped with the power output plug 6 attached to the iron body 1, or It is determined that the power output plug 6 has been unplugged from 1 and a power failure process for measuring the power failure time is performed. If the measured power failure time is longer than a predetermined time, the setting of the setting switch is set to “OFF”. I do. Next, a power failure display is performed by the LCD display unit 11b, and the microcomputer 21a, the RAM 21b, and the like are backed up for a predetermined time. Then, the process returns to step 1 to determine whether or not the power is being supplied. If the power failure mode is continued, the charging circuit 25 is gradually turned off.
, The operation of the microcomputer 21a is finally stopped and reset.

As described above, according to the above embodiment, the air
Whether the main body 1 is connected to the power output plug 6
The output data is detected by the switch with
Stored in the RAM 21b inside the computer 21a as needed
Output data before a certain period of time
This output data is retained. And the energization detection times
That the power supply to the iron body 1 was switched by the road 28
When it is detected, the controller 21
Code at a certain time before the power supply was switched
Reads the output data from the switch 7 with the
The mode is determined based on the mode.

Thus, for the output data of the switch with code 7 and the power supply detection circuit 28 detected in real time, the state of the switch with code 2 seconds before the time when the power supply is switched by the power supply detection circuit 28 is stored. By holding the information and using it for mode determination, the controller 21 can accurately determine each mode such as corded, cordless placement, cordless lift, and power failure. In other words, by providing a certain time difference between each piece of output data to be detected, the temporal priority of the output data becomes clear, and the reliable mode determination by the controller 21 can be performed without providing a plurality of detecting means. Can be.

Further, in response to various mode determinations by the controller 21, the display on the display 11 can be changed for each mode or a power failure can be detected, so that the controller 21 can perform finer control. Thus, the usability can be greatly improved.

FIGS. 9 and 10 show a second embodiment of the present invention. The same parts as those in FIGS. 1 and 3 are denoted by the same reference numerals, and detailed description of the common parts is omitted. . In the present embodiment, a mounting switch 31 for detecting whether or not the iron main body 1 is mounted on the ironing board 2 is provided on the iron main body 1 as state detecting means, and when the iron main body 1 is mounted on the ironing board 2. A protrusion member 32 for turning on the placement switch 31 is provided on the ironing board 2. When the energization detection circuit 28 detects that energization has been switched from on to off or from on to off, the controller 21 reads out the state of the mounting switch 31 two seconds before from the RAM 21b, and Functions and effects similar to those of the first embodiment can be obtained.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the embodiment, the mode determination by the controller 21 is configured to read the state of the switch with code 7 or the placement switch 31 two seconds before the point of time when the energization is switched. What is necessary is just to set suitably considering the structure etc. of an ironing device.

[0020]

According to the present invention, there is provided an iron body having a built-in control means equipped with a microcomputer and a backup power supply for driving the control means when power supply from alternating current is stopped, and a heater heated by a heater. And an ironing board on which the ironing body is placed, wherein the ironing body is placed on the ironing board.
Or a power supply for powering this iron
State detecting means for detecting whether it is connected to the over prescription power supply apparatus, on the basis of the output data of the current detecting means for detecting the power supply to the iron main body of the alternating current, the mode determination by the control means In the ironing device configured as described above, the control unit writes the output data from the state detection unit into the microcomputer as needed.
The output data at a certain time before the current time is always updated.
While holding this output data while
When the energization of the iron body is switched, the mode determination is performed by reading out the output data from the state detection means a predetermined time before, and the mode determination is reliably performed without providing any other detection means. Can be provided.

[Brief description of the drawings]

FIG. 1 is an external view of an ironing device in a cordless mode showing a first embodiment of the present invention.

FIG. 2 is an external view of the ironing device in the corded mode according to the first embodiment.

FIG. 3 is a circuit configuration diagram of the same.

FIG. 4 is a flowchart of the same.

FIG. 5 is a flowchart of the same.

FIG. 6 is a graph showing a temperature change of a base and a display level in the code-added mode.

FIG. 7 is a graph showing a temperature change of a base and a display level in the cordless mode.

FIG. 8 is a schematic explanatory view showing a display of a power sign corresponding to the display level of the power supply system.

FIG. 9 is an external view of the ironing device in a cordless mode showing the second embodiment.

FIG. 10 is a circuit configuration diagram of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Iron main body 2 Ironing board 6 Power output plug (power supply device with a cord ) 7 Switch with a cord (state detecting means) 9 Base 21 Controller (control means) 21 a microcomputer 24 Heater 25 Charging circuit (power supply for backup) 28 Electricity detecting circuit (Electrification detection means) 31 Mounting switch (state detection means)

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06F 75/26 D06F 79/02 G09F 15/78

Claims (1)

(57) [Claims] 1. An iron body having a built-in control means equipped with a microcomputer and a backup power supply for driving the control means when power supply from alternating current is stopped, and having a base heated by a heater. provided and ironing board for mounting the iron main body, the a
Whether the iron body is placed on the ironing board, or
Is a corded power supply for supplying power to the iron
State detection means for detecting whether or not the electronic device is connected ;
Based on the output data of the current detecting means for detecting the power supply to the iron main body of the alternating current, the ironing device configured to perform mode determination by said control means, said control means from said state detecting means The output data is stored in the microcomputer at any time,
While constantly updating the output data a certain time before the time point
While holding this output data, the iron body
An ironing device for reading out output data from the state detecting means a predetermined time before the current supply to the power supply is switched, and performing mode determination.