JP3116703B2 - Cordless iron - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for charging a battery provided in an iron portion efficiently and in a short time when the iron portion is placed on a stand portion, and for obtaining a predetermined voltage when discharging the battery and a sufficient discharge. It relates to a cordless iron that secures time.

[0002]

2. Description of the Related Art Conventionally, this type of cordless iron has been configured as shown in FIG. Hereinafter, the configuration will be described. As shown in the figure, the power supply unit E is mounted on a stand unit, and other circuit units are mounted on an iron unit. For example, a constant voltage circuit composed of a transistor Q1, a Zener diode ZD1, and a resistor R2 from the power supply unit E applies a rated voltage specified by the capacitor C1 to a capacitor C1 such as an electric double-layer capacitor to charge the capacitor C1. .

In addition, a voltage is applied to a load L from a power supply section E via a resistor R3 to operate the load L. Diode D
Reference numeral 1 denotes that when the voltage applied to the load L is higher than the voltage applied to the battery C1, the load applied voltage is prevented from being applied to the battery C1 and destroying the battery C1.

[0004] Next, when the power supply section E is removed and the power supply voltage becomes 0 by detaching the iron section from the stand section, or when the voltage of the power supply section E drops to a predetermined voltage or less. , The diode D1 from the capacitor C1
, A voltage is applied to the load L to continue the operation of the load L.

Japanese Utility Model Laid-Open Publication No. Sho 62-196194 discloses a configuration in which a battery is provided in an iron portion and the battery is charged when the iron portion is placed on a stand portion.

[0006]

However, in the configuration shown in FIG. 11, the capacitor C is used to increase the discharge current.
When the capacity of the battery 1 is increased, the internal resistance r1 of the battery C1 increases as the capacity of the battery C1 increases, and it takes a long time to charge the battery. However, there is a problem that a large current cannot be supplied to the load L as a result.

Further, when the voltage of the power supply section E is high, when this voltage is lowered to set the charging voltage of the capacitor C1, a large voltage is applied to the transistor Q1, and the transistor Q1
1 has a problem that the power consumption increases.

In addition, the one described in Japanese Utility Model Laid-Open Publication No. 62-196194 has a problem that it takes a long time to charge the battery because the charging current cannot be increased for the battery.

The longer charging time or the higher power consumption of the transistor Q1 means that the battery C1 was charged and the iron was detached from the stand when the iron was placed on the stand. Sometimes, for a cordless iron that operates a load with the discharge current of the capacitor C1, the time for placing the iron on the stand is short, so it is necessary to charge the battery in a short time, or the circuit mounted on the iron is very small. This is a fatal problem in that it needs to be done.

The battery described in Japanese Utility Model Laid-Open Publication No. 62-196194 has a problem that it takes a long time to charge the battery because the charging current of the battery cannot be increased.

The present invention has been made to solve the above-mentioned problem, and enables the battery to be charged quickly and quickly even when the iron part is placed on the stand part for a short time. A first object is to output the data so that it can be used for a long time.

It is a second object of the present invention to perform efficient charging without wasteful power consumption when the voltage of the power supply unit is high.

[0013] In addition, when the iron portion is placed on the stand portion, the load portion is operated while rapidly charging the battery, and when the iron portion is detached, the load portion is operated from the battery. The purpose is 3.

Further, when the iron portion is placed on the stand portion, even if the voltage of the power supply portion is high on the stand portion,
It is a fourth object of the present invention to operate the load unit while rapidly charging the battery without wasteful power consumption, and to operate the load unit from the battery when the iron is detached.

It is a fifth object of the present invention to determine a state in which the iron unit is mounted on the stand unit and to reliably perform the charging / discharging operation of the storage battery depending on whether or not the iron unit is mounted.

[0016]

SUMMARY OF THE INVENTION In order to achieve the first object, the present invention comprises an ironing section and a stand section having the ironing section and having a power supply section. A power storage unit having a power storage unit, a switching unit that connects the plurality of power storage units in parallel when charging the power storage unit, and connects the plurality of power storage units in series when discharging the power storage unit, and control that controls the switching unit. A first problem-solving means is provided with a charging / discharging device composed of a unit.

According to another aspect of the present invention, there is provided a power storage unit having a plurality of power storage units, wherein the iron unit includes a power storage unit and a power storage unit. A charge / discharge device comprising: a switching unit that connects the plurality of capacitors in series when charging the power storage unit and connects the plurality of capacitors in parallel when discharging the battery; and a control unit that controls the switching unit. The second problem solving means is provided.

In order to achieve a third object, a power supply unit of the first means for solving the problems includes a first power supply unit having a predetermined charging voltage value for a battery constituting a power storage unit;
A second power supply unit having a predetermined voltage value higher than the voltage value of the power supply unit, and at least the second power supply unit is provided in a stand unit. When the battery has a voltage value, the power storage unit is charged by the first power supply unit, and the load unit is operated by the second power supply unit. When the second power supply unit is removed, or when the second power supply unit is removed, A control unit that connects the power storage units constituting the power storage unit in series and supplies the voltage of the power storage unit to the load unit when the voltage of the power supply unit cannot obtain a predetermined voltage value. It is a means to solve the problem.

In order to achieve the fourth object, the power supply section of the second means for solving the above problems is configured such that a predetermined charging voltage is applied to each of the individual electric storage units when the electric storage units constituting the electric storage unit are connected in series. A first power supply unit having a voltage value that is possible and a second power supply unit having a predetermined voltage value lower than the voltage value of the first power supply unit, and at least the first power supply unit is provided in a stand unit The iron unit charges the power storage unit with the first power supply unit when the first power supply unit has the predetermined voltage value, and operates the load unit with the second power supply unit; When the first power supply unit is removed, or when the voltage of the first power supply unit cannot obtain a predetermined voltage value, the capacitors forming the power storage unit are connected in parallel to reduce the voltage of the power storage unit. The fourth problem-solving device is provided with a control unit for supplying to the load unit. It is set to.

In order to achieve the fifth object, the ironing part of the third or fourth means for solving the problem has a mounting detecting part for determining whether or not the ironing part is mounted on the stand part, The output signal of the placement detection unit is input to the control unit, and the control unit charges the power storage unit when the iron unit is placed on the stand unit, and operates the load unit with the second power supply unit, A fifth problem solving means is configured so that the load unit is operated with the voltage of the power storage unit when the iron unit is detached from the stand unit.

[0021]

According to the first aspect of the present invention, there is provided:
When charging the power storage unit, connect a small-capacity capacitor in parallel, terminate the charging in a short time because the internal resistance of the small-capacity capacitor is small, and connect the capacitors in series when using the discharge current from the power storage unit. By increasing the terminal voltage, a predetermined voltage can be obtained by short-time charging.

According to the second means for solving the problem, when the voltage of the power supply section is high, it is not necessary to step down the voltage of the power supply section by connecting and charging a plurality of capacitors of the power storage section in series. Without causing unnecessary power consumption,
Efficient charging without heat generation is possible. When a discharge current from the power storage unit is used, a predetermined terminal voltage can be obtained by connecting a plurality of power storage units in parallel.

According to the third means for solving the problems, the first power supply unit operates the load unit from the second power supply unit while connecting a plurality of power storage units of the power storage unit in parallel to perform high-speed charging. When the iron unit is detached from the stand unit and the second power supply unit is removed or the predetermined voltage cannot be obtained, the plurality of power storage units of the power storage unit are connected in series to the predetermined voltage. And can be supplied to the load.

According to a fourth aspect of the present invention, a plurality of power storage units of a power storage unit are connected in series, a high voltage of a first power supply unit is divided, and a predetermined voltage is applied to each power storage unit for charging. And
In addition, the load section can be operated by applying the voltage of the second power supply section to the load section, the iron section is detached from the stand section, and the first power supply section is removed or a predetermined voltage is obtained. When it is no longer possible, a plurality of power storage units of the power storage unit can be connected in parallel to obtain a predetermined voltage and supply it to the load unit.

Further, according to the fifth problem solving means, the output of the placement detecting section for determining whether or not the iron section is on the stand section is input to the control section, so that the charging operation is performed when the iron section is on the stand section. Is performed, and when the iron part is detached from the stand part, a discharging operation can be performed.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, a stand unit 1 has an iron unit 2 mounted thereon and has a power supply unit 3. A power storage unit 4 having a plurality of power storage units, a switching unit 5 connecting a plurality of power storage units in parallel when charging the power storage unit 4 and connecting a plurality of power storage units in series when discharging the power, The control unit 6 controls the unit 5.

As shown in FIG. 2, the power supply section 3 is composed of a power supply E, the power storage section 4 is composed of capacitors C1 and C2, and the switching section 5 is composed of switches SW1, SW2 and SW3. Switch SW of switching unit 5 by control unit 6
1, SW2 and SW3 are controlled.

In the above configuration, when charging the power storage unit 4 with the iron unit 2 placed on the stand unit 1, the switches SW1 and SW3 are turned on by the control unit 6 and the switch S
When W2 is turned off, capacitors C1 and C2 are connected in parallel to power supply E, and capacitors C1 and C2 are charged at a high speed.

Next, at the time of electric discharge in which the iron part 2 is detached from the stand part 1, the switches SW1 and S
When W3 is turned off and SW2 is turned on, the capacitors C1 and C2
Are connected in series, and the charging voltage E of 2
Double voltage 2E is obtained. This is shown in a table (Table 1).

[0030]

[Table 1]

The diode D1 is connected to the capacitors C1 and C2.
Is a diode for preventing backflow when connected in series during discharging.

Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. As shown in the figure, when charging the capacitors C1 and C2 forming the power storage unit 4 provided in the ironing unit 7, the switches SW1 and SW2 forming the switching unit 5 connect the capacitors C1 and C2 in series to discharge. In this case, the capacitors C1 and C2 are connected in parallel.

In the above configuration, when charging the power storage unit 4 with the iron unit 7 placed on the stand unit 1, the control unit 6 turns off the switch SW1 and turns on the switch SW2. At this time, since the voltage of the power supply E is divided by the capacitors C1 and C2, the voltage applied to the capacitors C1 and C2 is E / 2. This voltage of E / 2 is stored in capacitors C1,
If the voltage is set to be equal to or lower than the rated voltage of C2, there is no need to step down even if the voltage of the power supply E is high, and efficient charging can be performed.

Next, when the iron unit 7 is detached from the stand unit 1 and the power source E is removed to obtain the discharge current of the capacitors C1 and C2, the control unit 6 turns on the switch SW1 and turns off the switch SW2. Battery C between electrodes P1 and P2
1 and C2 are connected in parallel, and a large discharge current is obtained.

Next, a third embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
As shown in FIG. 4, the stand unit 8 includes a second power supply unit 10 having a predetermined voltage value higher than a voltage value of a first power supply unit 9 having a predetermined charging voltage value of a battery constituting the power storage unit 4. doing.

The iron unit 11 charges the power storage unit 4 with the first power supply unit 9 and the load unit 12 when the second power supply unit 10 has a predetermined voltage value. Is operated by the second power supply unit 10, and when the second power supply unit 10 is removed, or when the voltage of the second power supply unit 10 cannot obtain a predetermined voltage value, the power storage unit 4 is configured. And a control unit 13 that supplies the voltage of the power storage unit 4 to the load unit 12 by connecting the power storage units to be connected in series.

The specific circuit is configured as shown in FIG. 5. The power supply E constitutes the second power supply section 10, and the constant voltage circuit section including the transistor Q1, the resistor R1, and the Zener diode ZD1 is connected to the first power supply section. The unit 9 is constituted.

In the above configuration, when charging the power storage unit 4 with the iron unit 11 placed on the stand unit 8, the control unit 13 switches the switches SW 1 and SW 1 constituting the switching unit 5.
The switch SW3 is turned on, the switch SW2 is turned off, and the capacitors C1 and C2 are connected in parallel to the first power supply unit 9 to charge the capacitors C1 and C2 at high speed. At this time, the load unit 1
2 operates at the voltage E when the voltage E is applied from the second power supply unit 10.

Next, when the iron section 11 is detached from the stand section 8 and the discharge current of the capacitors C1 and C2 is used because the second power supply section 10 is removed or the like, the control section 13 is used.
Turns off the switches SW1 and SW3, turns on the switch SW2, and connects the capacitors C1 and C2 in series. Then, the capacitors C1, C
2 are respectively charged with v, the capacitors C1, C2
Are connected in series, a voltage of 2 V is applied to the load unit 12 via the diode D3, and the load unit 12 continues to operate. Here, the voltage v is an output voltage of the first power supply unit 9.

In particular, this is effective when the rated voltage of the electric double-layer capacitors and the like of the capacitors C1 and C2 is as low as about 2.2 V and the voltage at which the load section 12 operates is about 5 V. When the voltage E of the second power supply unit 10 is applied to the capacitors C1 and C2, a voltage exceeding the rated voltage of the capacitors C1 and C2 is applied to the diode D3.
Is to be prevented from being destroyed.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the third embodiment are denoted by the same reference numerals, and description thereof is omitted. As shown in the figure, the first power supply unit 17 provided in the stand unit 16 is a voltage capable of applying a predetermined charging voltage to each of the individual capacitors when the capacitors C1 and C2 constituting the power storage unit 4 are connected in series. Has a value. Second power supply unit 15 provided in ironing unit 14
Has a predetermined voltage value lower than the voltage value of the first power supply unit 17.

When the first power supply section 17 has a predetermined voltage value while the iron section 14 is placed on the stand section 16, the capacitors C1 and C2 are charged by the first power supply section 17 and Operating the load unit 12 with the second power supply unit 15;
When the first power supply unit 17 is removed or when the voltage of the first power supply unit 17 cannot obtain a predetermined voltage value, the capacitors C1 and C2 are connected in parallel and supplied to the load unit 12. Like that.

In the above configuration, when charging with the iron unit 14 placed on the stand unit 16, the switch SW1 is turned off by the control unit 13, the switch SW2 is turned on, and the capacitors C1 and C2 are connected in series. The power storage units C1 and C2 are charged from the voltage E of the power supply unit 17 of FIG. At this time, as described above, even if the voltage E of the first power supply unit 17 is high, since the capacitors C1 and C2 are connected in series, the voltage applied to the capacitors C1 and C2 has an appropriate value. Also, the transistor Q
2, a voltage generated by the second power supply unit 15 formed by the resistor R2 and the Zener diode ZD2 is applied to the load unit 12 through the diode D4, and the load unit 12 is operating.

Next, when the first power supply unit 17 is removed, the control unit 13 turns on the switch SW1 and turns on the switch S1.
By turning off W2, the load C
1 and C2 are connected in parallel, and an appropriate voltage and a large discharge current can be supplied to the load section 12 through the diode D5.

When the diode D1 is charged, the capacitor C1 is connected in series to the second power supply unit 17, and a voltage exceeding the withstand voltage of the capacitor C1 is applied to the capacitor C1 to destroy C1. In addition, the capacitors C1 and C2 are inserted so as to be connected in parallel to the load unit 12 at the time of discharging.

The diode D4 prevents the storage capacitors C1 and C2 from applying a reverse voltage to the transistor Q2 when discharging. The diode D5 is connected to the second power supply unit 1 when the load unit 12 is operating at the output voltage of the second power supply unit 15.
This prevents the output voltage of No. 5 from being applied to the capacitor C2 and destroying the capacitor C2.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. The same components as those in the third embodiment are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG. 7, the ironing unit 18 includes a mounting detection unit 19 that determines whether the ironing unit 18 is mounted on the stand unit 8, and outputs an output signal of the mounting detection unit 19 to the control unit 20. The control unit 20 charges the power storage unit 4 when the iron unit 18 is placed on the stand unit 8, and
The load unit 12 is operated by the second power supply unit 10, and when the iron unit 18 is detached from the stand unit 8, the load unit 12 is operated by the voltage of the power storage unit 4.

The stand section 8 has a commercial power supply 21. When the iron section 18 is placed on the stand section 8, the electrodes K4, K3, K6 provided on the iron section 18 and the electrodes K2, K2 provided on the stand section 8 are provided. K1 and K5 are connected, and power is supplied to the heater section incorporated in the iron section 18, the base section 22 of the iron section 18 is heated, and when the iron section 18 is detached from the stand section 8, the residual heat of the iron section 18 is used. It is something to cling to.

In the above configuration, when the iron 18 is placed on the stand 8, the electrodes K1 and K3 and K2 and K4 are connected, and the second power supply 10 is supplied to the circuit of the iron 18. You. The placement detection unit 19 provided in the ironing unit 18 detects that the ironing unit 18 is placed on the stand unit 8 and inputs this placement signal to the control unit 20 so that the control unit 20 operates the switch. SW1, S
W3 is turned on, switch SW2 is turned off, and capacitors C1,
C2 are connected in parallel, and the first power supply unit 9 performs high-speed charging.

The load section 12 is driven by the second power supply section 10. When the iron unit 18 is detached from the stand unit 8, the placement detecting unit 19 detects the detachment, inputs a detachment signal to the control unit 20, and outputs the switches SW1 and SW3.
Is turned off, the switch SW2 is turned on, the capacitors C1 and C2 are connected in series, the discharge current of the capacitors C1 and C2 flows to the load section 12 through the diode D3, and the iron section 18 of the load section 12 is separated from the stand section 8. Operate during the period.

In each of the above embodiments, the case where the number of capacitors is two has been described. However, a similar circuit configuration can be obtained even if the number of capacitors is further increased. FIG. 10 shows a case where there are three capacitors. The operation at this time is as shown in (Table 2).

[0052]

[Table 2]

Further, it is obvious that the switch section can be constituted by using a semiconductor such as a transistor, and the present invention naturally includes a semiconductor switch.

Further, although the first power supply unit is provided in the iron unit, it goes without saying that it may be provided in the stand unit.

[0055]

As is apparent from the above embodiments, according to the present invention, an iron portion and a stand portion having the power supply portion and having the iron portion are provided.
A power storage unit having a plurality of power storage units, a switching unit configured to connect the plurality of power storage units in parallel when charging the power storage unit, and to connect the plurality of power storage units in series when discharging the power storage unit, and to control the switching unit. The charging / discharging device is configured with a control unit that performs the operation, so that even when the iron unit is placed on the stand unit for a short time, the battery can be rapidly charged in a short time. Output and use for a long time.

The iron unit includes a stand unit having the iron unit and a power supply unit. The iron unit includes a power storage unit having a plurality of power storage units. When the power storage unit is connected in series and a discharging unit configured by a switching unit that connects the plurality of power storage units in parallel when discharging and a control unit that controls the switching unit is provided, the voltage of the power supply unit is high. At this time, efficient charging can be performed without wasteful power consumption.

Further, the power supply section has a first power supply section having a predetermined charging voltage value of a battery constituting the power storage section, and a second power supply section having a predetermined voltage value higher than the voltage value of the first power supply section. And at least the second power supply unit is provided in a stand unit, and the iron unit is configured to store the power storage unit with the first power supply unit when the second power supply unit has the predetermined voltage value. When charging and operating the load unit with the second power supply unit, when the second power supply unit is removed, or when the voltage of the second power supply unit cannot obtain a predetermined voltage value, Since the control unit that connects the capacitors forming the power storage unit in series and supplies the voltage of the power storage unit to the load unit is provided, when the iron unit is placed on the stand unit, the load unit is quickly charged while the power storage unit is charged. Operate the battery with the iron part removed. Ri load unit can be operated.

Further, the power supply section includes a first power supply section having a voltage value capable of applying a predetermined charging voltage to each of the individual capacitors when the capacitors constituting the power storage section are connected in series;
A second power supply unit having a predetermined voltage value lower than the voltage value of the power supply unit, and at least the first power supply unit is provided in a stand unit. When the power storage unit has a voltage value, the power storage unit is charged by the first power supply unit and the load unit is operated by the second power supply unit. When the first power supply unit is removed, or when the first power supply unit is removed, When the voltage of the power supply unit cannot obtain a predetermined voltage value, a control unit that connects the power storage units constituting the power storage unit in parallel and supplies the voltage of the power storage unit to the load unit is provided. When the battery is placed on the stand, even if the voltage of the power supply is high on the stand, the load is operated while charging the battery quickly without wasteful power consumption. Operating the load section more It can be.

Further, the ironing unit is provided with a mounting detecting unit for determining whether or not the ironing unit is mounted on the stand unit,
The output signal of the placement detection unit is input to the control unit, and the control unit charges the power storage unit when the iron unit is placed on the stand unit, and operates the load unit with the second power supply unit, When the iron part is detached from the stand part, the load part is configured to operate with the voltage of the power storage part, so it is determined whether the iron part is placed on the stand part, and depending on the presence or absence of the iron part, it is surely The charge and discharge operation of the capacitor can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of a main part of a cordless iron according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram of a main part of the cordless iron.

FIG. 3 is a main part circuit diagram of a cordless iron according to a second embodiment of the present invention.

FIG. 4 is a block diagram of a main part of a cordless iron according to a third embodiment of the present invention.

FIG. 5 is a main part circuit diagram of the cordless iron.

FIG. 6 is a main part circuit diagram of a cordless iron according to a fourth embodiment of the present invention.

FIG. 7 is a block diagram of a main part of a cordless iron according to a fifth embodiment of the present invention.

FIG. 8 is a main part circuit diagram of the cordless iron.

FIG. 9 is an external view of the cordless iron.

FIG. 10 is a main part circuit diagram of an iron part of a cordless iron according to a sixth embodiment of the present invention.

FIG. 11 is a main part circuit diagram of a conventional cordless iron.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stand part 2 Iron part 3 Power supply part 4 Power storage part 5 Switching part 6 Control part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06F 75/02 D06F 79/04

Claims (5)

(57) [Claims] 1. An ironing device comprising: an ironing unit; and a stand unit mounted with the ironing unit and having a power supply unit.
A power storage unit having a plurality of power storage units, a switching unit configured to connect the plurality of power storage units in parallel when charging the power storage unit, and to connect the plurality of power storage units in series when discharging the power storage unit, and to control the switching unit. A cordless iron equipped with a charging / discharging device configured with a control unit. 2. An ironing unit, comprising: a stand unit having a power supply unit mounted with the ironing unit;
A power storage unit having a plurality of power storage units, a switching unit that connects the plurality of power storage units in series when charging the power storage unit and connects the plurality of power storage units in parallel when discharging the power storage unit, and controls the switching unit. A cordless iron equipped with a charging / discharging device configured with a control unit. 3. A power supply unit comprising: a first power supply unit having a predetermined charge voltage value of a battery constituting a power storage unit; and a second power supply unit having a predetermined voltage value higher than a voltage value of the first power supply unit. And a stand unit provided with at least the second power supply unit, and the iron unit charges the power storage unit with the first power supply unit when the second power supply unit has the predetermined voltage value. And when the load unit is operated by the second power supply unit and the second power supply unit is removed or when the voltage of the second power supply unit cannot obtain a predetermined voltage value, The cordless iron according to claim 1, further comprising a control unit that connects the power storage units constituting the unit in series and supplies the voltage of the power storage unit to the load unit. 4. A power supply unit comprising: a first power supply unit having a voltage value capable of applying a predetermined charging voltage to each of the individual power storage units when the power storage units constituting the power storage unit are connected in series; and the first power supply unit. A second power supply unit having a predetermined voltage value lower than the voltage value of the second power supply unit. A stand unit is provided with at least the first power supply unit, and the ironing unit is configured such that the first power supply unit has the predetermined voltage value. Charging the power storage unit with the first power supply unit and operating the load unit with the second power supply unit when the first power supply unit is removed, or when the first power supply unit is removed. When the voltage of can not obtain the predetermined voltage value,
The cordless iron according to claim 2, further comprising: a control unit that connects the power storage units constituting the power storage unit in parallel and supplies the voltage of the power storage unit to the load unit. 5. An ironing unit, comprising: a mounting detection unit for determining whether or not the ironing unit is mounted on the stand unit; an output signal of the mounting detection unit is input to the control unit; When the battery is placed on the stand, the power storage unit is charged, and the load unit is operated by the second power supply unit. When the iron unit is detached from the stand unit, the load unit is operated by the voltage of the power storage unit. The cordless iron according to claim 3 or 4, wherein the cordless iron is configured.