JPH0829200B2 - Cordless iron - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a cordless iron for general household use.

2. Description of the Related Art Conventionally, a cordless iron of this type has a base having a heater, a vaporization chamber provided in the base, a tank arranged above the base, and temperature detection means for detecting the temperature of the base, An iron body having a power supply terminal connected to the heater, an electrode connected to the power supply terminal, a display section using a light emitting diode, etc., energization control to the heater and display of a set temperature on the display section. It consisted of a stand with a control circuit to perform.

However, with such a structure, when the iron body is detached from the stand and used while taking out steam without supplying power to the iron body, the water in the tank is supplied to the vaporization chamber. , Steam is generated, but the base loses heat of vaporization and the temperature of the base decreases. But,
Since the decrease in temperature is not displayed, there was a problem that the temperature of the base dropped to a temperature at which the water supplied from the tank could not be vaporized and the water supplied to the vaporization chamber leaked out to wet the cloth. Furthermore, the iron body must be frequently placed on a stand in order to prevent the temperature of the base from decreasing, which is very inconvenient.

Therefore, according to the present invention, when the temperature of the base becomes lower than a certain temperature, the state is displayed by the display unit to inform the user that power supply is necessary, and ironing is performed even after the temperature is lowered. To prevent leakage of water from the base.

Means for Solving Problems The technical means of the present invention for solving the above problems comprises an iron body and a stand on which the iron body is placed, and the iron body is a base heated by a heater. And the vaporization chamber installed in this base,
The tank has a tank arranged above the base, a temperature detecting means for detecting the temperature of the base, a power supply terminal connected to the heater, the stand has an electrode connected to the power supply terminal, and a light emitting diode. And the like, and a control circuit that controls energization of the heater and control of the display unit, and the control circuit outputs the temperature detection means when the iron body is placed on a stand. When the base temperature detected by the temperature detecting means is lower than the set temperature, both the set temperature and the present temperature are displayed on the display unit.

Action The action of this technical means is as follows.

That is, when the iron body is removed from the stand and ironed while taking out steam, the temperature of the base gradually decreases, but when the iron is placed on the stand by detecting the temperature by the temperature detection means. The circuit indicates that the temperature is low and shows the need for power supply, thus preventing ironing while the temperature is low and preventing water leakage from the base. Also,
When displaying that the temperature has dropped, both the set temperature and the current temperature are displayed, so it can be used as a guide for how much iron should be placed until the set temperature is reached. , Very easy to use.

Embodiment One embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes an iron body, a base 3 having a heater 2, and a vaporization chamber 4 provided with the base 3.
A tank 5 arranged above the base 2, a temperature detection means 6 such as a thermistor for detecting the temperature of the base 3, a transmission terminal 7 for transmitting the output of the temperature detection means 6, and a power supply connected to the heater 2. It has a terminal 8. Reference numeral 9 denotes a stand, which processes the output from the electrode 10 connected to the power supply terminal 8, the display unit 11 using a light emitting diode, etc., and the temperature detection means 6, controls the temperature of the base 3, and displays the display unit. Control circuit 12 using a microcomputer for controlling 11
And a setting button 13 for changing the set temperature of the control circuit 12.
And a temperature signal terminal 14 for sending the output of the temperature detecting means 6 from the transmission terminal 7 to the control circuit, and a power cord 15 for supplying electric power to the entire device. In FIG. 2, the display section 11 and the display section using the light emitting diode and the like of the cordless iron in which the setting button 13 is arranged are arranged in the order of OFF → low temperature → medium temperature → high temperature.

The operation of the above configuration will be described with reference to FIG. First, when the power cord 15 is connected to the outlet while the iron body 1 is placed on the stand 9, the display unit 11 displays the off state. Next, when the setting button 13 is pressed and the control circuit 12 is set to adjust the temperature to the base temperature suitable for the cloth to be ironed, the control circuit 12 causes the display unit 11 to display the set temperature. In the present embodiment, the following description will be continued assuming that the maximum temperature is set. The display unit 11 displays the maximum temperature.
Then, the control circuit 12 includes a temperature signal terminal 14 and a transmission terminal 7
The base temperature and the set temperature are compared by the output from the temperature detection means 6 obtained via the heater 2, and the heater 2 is energized via the electrode 10 and the power supply terminal 8 until the base 3 reaches the set temperature. Further, the control circuit 12 displays the current temperature of the base 3 on the display unit 11 together with the display of the set temperature as the temperature of the base 3 rises. If the current temperature of the base 3 is low, the maximum temperature and the low temperature are displayed, and as the temperature of the base 3 increases, the current temperature display moves from the low temperature to the high temperature. Then, when the temperature of the base 3 reaches the maximum temperature of the set temperature, the display of the current temperature is stopped thereafter and only the set temperature is displayed. Further, the control circuit repeats turning on and off the power supply to the heater 3 in order to keep the temperature of the base 3 at the set temperature. Next, when the iron main body 11 is removed from the stand 9 and ironed, the water in the tank 5 falls into the vaporization chamber 4 and is vaporized by the heat of the base 3 to come out from the hole of the base 3 as steam. The wrinkle of the cloth is extended by the steam and heat, but it is base 3
Temperature will be lower. Therefore, when the iron body 11 is placed on the stand 9 to raise the temperature and power is supplied again, the control circuit 12
Compares the set temperature with the base temperature rather than the output of the temperature detection means 6, and if the base temperature is lower, power is supplied. In this case, if the temperature of the base 3 is a constant temperature, that is, a temperature that is too low to vaporize water, the control circuit 12 again displays the current temperature on the display unit 11, and the base temperature unsuitable for steam ironing. Therefore, the user is informed that power needs to be supplied. Then, when the base temperature reaches the set temperature due to power supply, the current temperature display is stopped. If the base temperature has not fallen below a certain temperature, the display unit 11 displays only the set temperature as before, and the control circuit 12 performs power supply and temperature adjustment operations. FIG. 3 is a flow chart in which the control procedure for the display is written. After that, even if the iron body 9 is repeatedly attached to and detached from the stand by the ironing operation, the base temperature becomes equal to or lower than the constant temperature T according to the control procedure. In this case, the current temperature is displayed to prevent water leakage due to ironing with steam at low temperatures.

As described above, according to the present invention, it is possible to prevent ironing while the temperature is lowered by notifying the operator that the base temperature has become equal to or lower than a certain temperature,
Due to the low temperature of the base, water does not evaporate and leaks from the base, so that the cloth can be efficiently ironed without getting wet, which makes it even more useful. In addition, when displaying that the temperature has dropped, both the set temperature and the current temperature are displayed, so it should be used as a guide for how much iron should be placed until the set temperature is reached. It is very easy to use.

[Brief description of drawings]

FIG. 1 is a fragmentary cross-sectional view of a cordless iron showing an embodiment of the present invention, FIG. 2 is a perspective view of the cordless iron in which a display portion and a setting button are arranged, and FIG. It is a flowchart. 1. Iron body 2. Heater 3. Base 4.
... Vaporization chamber, 5 ... Tank, 6 ... Temperature detection means, 8 ...
… Power supply terminal, 9 …… Stand, 10 …… Electrode, 11 …… Display, 12 …… Control circuit.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Keiichi Ogiso Keiichi Ogiso 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-57-101533 (JP, A) JP-A-61-257700 (JP, A)

Claims (1)

[Claims] 1. An iron body and a stand on which the iron body is placed. The iron body is a base heated by a heater, a vaporization chamber provided in the base, and the iron body is disposed above the base. A tank, a temperature detecting means for detecting the temperature of the base, a power supply terminal connected to the heater, the stand, an electrode connected to the power supply terminal, and a display unit using a light emitting diode or the like. , A control circuit for controlling energization of the heater and a display unit, the control circuit inputs the detected temperature from the output of the temperature detecting means when the iron body is placed on a stand. When the base temperature detected by the temperature detecting means is lower than the set temperature, the cordless iron is configured to display both the set temperature and the current temperature on the display unit.