KR102299432B1 - Electric appliance having child-lock function - Google Patents

Abstract

An electric device according to the technical idea of the present disclosure includes an input/output unit having an input unit for selecting functions of the electric device and an output unit for indicating a state of the electric device, wherein the first function of the electric device is performed By measuring the time, a time measuring unit generating time information for the time when the first function is performed and setting the main use time based on the time information, and a control unit configured to automatically activate a child lock function for ignoring selection by manipulation or blocking execution of the first function.

Description

Electric device with child lock function {ELECTRIC APPLIANCE HAVING CHILD-LOCK FUNCTION}

The technical idea of the present disclosure relates to an electric device, and more particularly, to an electric device having a child lock function.

Electric appliances such as electric ranges, electric pots and rice cookers are operated by the user's negligence or by persons other than the main user, such as children or companion animals, to prevent fire or burn accidents. It has a lock function. When the child lock function is set, all functions except some functions such as the heating function and the lid opening during heating or the function to release the child lock are blocked, and even if the button to select the blocked function is operated, the selected function is not performed.

An aspect of the present disclosure is to provide an electric device in which a child lock function is automatically set adaptively according to a pattern in which the electric device is used.

An electric device according to the technical idea of the present disclosure includes an input/output unit having an input unit for selecting functions of the electric device and an output unit for indicating a state of the electric device, wherein the first function of the electric device is performed By measuring the time, a time measuring unit generating time information for the time when the first function is performed and setting the main use time based on the time information, and a control unit configured to automatically activate a child lock function for ignoring selection by manipulation or blocking execution of the first function.

According to the electric device according to the technical idea of the present disclosure, since the child lock function is automatically set at a time other than the time when the electric device is mainly used, the safety of the electric device may be increased.

1 is a block diagram schematically illustrating an electric device according to an embodiment of the present disclosure.
FIG. 2 is an example implementation of the user interface of FIG. 1 .
3 is a block diagram schematically illustrating a heating device according to an exemplary embodiment of the present disclosure.
4 is a flowchart illustrating a method of operating an electric device according to an exemplary embodiment of the present disclosure.
5 is a diagram illustrating a method for setting a main use time of an electric device according to an exemplary embodiment of the present disclosure.
6 is a flowchart illustrating a method of operating an electric device according to an exemplary embodiment of the present disclosure.
7 is a flowchart illustrating a method for updating a main usage time of an electric device according to an exemplary embodiment of the present disclosure.

Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Terms used in various embodiments of the present disclosure are only used to describe specific embodiments, and are not intended to limit the technical spirit of the present disclosure. Expressions such as “include” or “may include” that may be used in various embodiments of the present disclosure indicate the existence of a disclosed corresponding function, operation, or component, and may include one or more additional functions, operations, or components, etc. are not limited.

In addition, expressions such as “first,” “second,” etc. used in various embodiments of the present disclosure may be used to distinguish one component from another component, and the corresponding components, for example, the corresponding component The order and/or importance of these are not limited. Without departing from the scope of the various embodiments of the present disclosure, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Terms such as those defined in the dictionary, including technical or scientific terms, are interpreted to have the same meaning as commonly understood by those of ordinary skill in the art to which various embodiments of the present disclosure pertain. should not be construed in an ideal or overly formal sense unless explicitly defined in various embodiments of the present disclosure.

1 schematically shows an electric machine according to an exemplary embodiment of the present disclosure.

An electric device according to an exemplary embodiment of the present disclosure may include various types of electrical appliances that can be used in homes or businesses, for example, heating appliances and home appliances. For example, the home appliance may include a kitchen appliance, a television, a washing machine, an air conditioner, a fan, an air purifier, a digital door lock, a light, and the like. The heating device may include cooking appliances such as a cooktop, a multi-cooker, an electric range, an electric oven, and an electric rice cooker, a sterilizer such as a baby bottle sterilizer and a dish sterilizer, and a dish washing machine. In addition to this, the electric device may include various types of electric products such as a mobile phone, a computer, and a notebook computer.

Referring to FIG. 1 , the electric device 100 may include a user interface 110 , a control unit 120 , and a time measurement unit 130 . In embodiments, the electric device 100 may further include other components according to the original purpose of use.

The user interface 110 is a functional unit for a user to operate the electric device 100 , and may be provided on the front surface of the body of the electric device 100 . The user interface 110 includes an input unit 10 and an output unit 20 , and may be referred to as an input/output unit.

The input unit 10 may include an input means (or operation means) for selecting a unique function and an additional function provided by the electric device 100 , and detects a user operation through the input means, and a signal according to the user operation , for example, a user input signal may be transmitted to the controller 120 . The input unit 10 may further include a driving circuit for driving the input means (or processing an input signal).

The output unit 20 may be provided with an output means for outputting an image signal, an audio signal, etc., through the output means to the electric device (such as setting information, state information, or information about a user's input) of the electric device 100 ( 100) may provide a variety of information related to the user. The output unit 20 may further include a driving circuit for driving the output means (or processing an output signal).

FIG. 2 shows an embodiment of a user interface provided in the electric device of FIG. 1 .

Referring to FIG. 2 , the input unit 10a may include various types of function buttons 11 , 12 , 13 , 14 and 15 that can be manipulated by the user. However, the present invention is not limited thereto, and the input unit 10a may include various types of input means, such as a mechanical or electronic dial, and various types of sensors.

The output unit 20a may be implemented as a display and may display various information related to the electric device 100 . However, the present invention is not limited thereto, and the output unit 20a may include an output unit capable of outputting a sound signal such as a speaker, and may provide information about the electric device 100 to the user through the sound signal. have.

In an embodiment, the input unit 10a and the output unit 20a may be integrally implemented. For example, the user interface 100a may be implemented as a touch screen in which the input unit 10a and the output unit 20a are integrally formed.

Continuing to refer to FIG. 1 , the controller 120 may control the overall operation of the electrical device 100 so that the electrical device 100 can perform its own function and additional function and operate safely. The control unit 120 may be implemented as a microcomputer, a logic circuit, or a processor such as a central processing unit (CPU), a field programmable gate array (FPGA), an electronic control unit (ECU), etc. The control unit 120 may be configured in advance in the manufacturing stage. Control of components (eg, the user interface 110, and the time measuring unit 130) based on a set control algorithm and/or a user input received through the input unit 10, that is, a control algorithm according to the user's selection By doing so, the electric device 100 can be controlled.

The control unit 120 may activate (activate) and deactivate (deactivate) the child lock function of the electric device 100 . When the child lock function is set, the control unit 120 blocks some functions of the electric device 100, for example, a unique function of the electric device 100 from being performed, or selects a selection by manipulation of the input means of the input unit 10 . can be ignored For example, when the electric device 100 is an electric range, when the child lock function is set, even if the user presses the power button or the heating button, the heating function of the electric range is not performed.

The control unit 120 may set and release the child lock function by the user's manipulation, and also analyze the user's usage pattern of the electric device 100 (eg, the main usage time), and automatically child lock based on this. The lock function can be turned on and off.

For example, when the user operates the child lock button 13 in FIG. 2 , the control unit 120 may receive a child lock setting signal from the input unit 10 and activate the child lock function of the electric device 100 . have. In addition, when the user operates the child lock button (13 in FIG. 2) while the child lock function is set, the control unit 120 receives the child lock release signal from the input unit 10 and deactivates the child lock function. . However, the present invention is not limited thereto, and when the child lock button 13 is not separately provided in the input unit 10 and the function button for selecting another function is operated in a preset special manner, the control unit 120 may The child lock function may be activated or deactivated based on the input signal according to the manipulation.

In addition, the control unit 120 analyzes the time during which the electric device 100 operates and the time during which a specific function of the electric device 100 (eg, a unique function corresponding to the purpose of use of the electric device 100) is performed to analyze the electric device. A time in which 100 is mainly used may be set as the main use time, and the child lock function may be automatically activated at a time other than the main use time (eg, a blocking time). The operating time of the electrical device 100 may be a time when power is applied to the electrical device 100 or a time during which a unique function of the electrical device 100 is performed. The intrinsic function may include, for example, a heating function in the case of a heating appliance.

The time measuring unit 130 may measure a time during which the electric device 100 operates or a time during which a specific function is performed. The time measuring unit 130 may be implemented as, for example, a timer, a Real Time Generator (RTG), or the like. In an embodiment, the time measuring unit 130 may be implemented as a part (ie, some modules) of the control unit 120 .

The time measuring unit 130 may measure a time during which the electric device 100 operates or a time at which a specific function is performed, and may generate the measured time as time information and provide it to the controller 120 . In an embodiment, the time measuring unit 130 may include a start time (ie, a time when a function starts) and an end time (ie, a time when the function is performed) in relation to the time during which the electric device 100 operates or the time when a specific function is performed. end time), and transmit time information including the measured start time and end time to the controller 120 . In an embodiment, the time measuring unit 130 is configured to start time and whenever the electric device 100 operates or a specific function is performed or when the electric device 100 operates or a specific function is performed for a set unit period. The end time may be measured, and time information including the end time may be transmitted to the controller 120 .

The control unit 120 analyzes the time information provided from the time measurement unit 130 to set the main use time (and/or cut-off time), and automatically activates the child lock function at a time other than the main use time, that is, the cut-off time. can do it

4 for a specific operation method of an electric device, for example, a method of setting a main use time, an operation method when a user manipulation is detected in a state in which the child lock function is automatically set at a time other than the main use time, and a method of updating the main use time It will be described later in detail with reference to to 7 .

In the electric device 100 according to an embodiment of the present disclosure, the controller 120 may automatically set the child lock function adaptively to the user's usage pattern. Accordingly, even when the user forgets to set the child lock, the child lock function of the electric device 100 is automatically set, and the electric device 100 is operated by persons other than the main user such as children or companion animals to cause fire or burns. Such accidents can be prevented from occurring.

3 is a block diagram illustrating a heating device according to an exemplary embodiment of the present disclosure. The heating device 100a may include an electric range, an electric rice cooker, a multi-cooker, and a baby bottle sterilizer.

Referring to FIG. 3 , the heating device 100a may include a user interface 110 , a control unit 120 , a time measurement unit 130 , and a heating unit 140a . The heating device 100a of FIG. 3 is an example of the electric device 100 of FIG. 1 , and the user interface 110 , the control unit 120 , and the time measurement unit 130 are the user interface 110 and the control unit of FIG. 1 . (120), the same as the time measuring unit 130, the overlapping description will be omitted.

The heating unit 140a may perform a heating function by controlling the on or off timing of the received power or by varying the magnitude of the voltage or current. The heating unit 140a may heat the container 200 (eg, a cooking container, an inner pot of an electric rice cooker, etc.) or directly heat a material accommodated in the container 200 in order to perform a heating function. The heating unit 140a may include induction, a hot plate, a highlight, a magnetron, a light wave irradiator, and other various heating elements that generate heat using electricity.

The time measuring unit 130 measures the time when the heating unit 140a performs a heating function, for example, the time when power is applied to the heating unit 140a and the time when the power is cut off, and uses the measured times as time information. may be provided to the controller 120 as As described above with reference to FIG. 1 , the control unit 120 analyzes the time information provided from the time measurement unit 130 to set the main use time (and/or block time), and time other than the main use time; In other words, the child lock function can be automatically activated at the cut-off time.

For example, when the electric range is applied as an example of the heating device 100a, the time measuring unit 130 performs a heating function by operating the power button of the input unit 10 to operate the heating unit 140a. At this time, the heating unit 140a may measure the start time and end time of the operation, and provide the measured start time and end time to the controller 120 as time information. The control unit 130 sets the main use time based on the start times and end times included in the plurality of time information received from the time measurement unit 130 , and activates the child lock function at a blocking time other than the main use time. can do it Accordingly, the heating unit 140a is a heating function or another function of the electric range (eg, a function selected by the user operation) due to the user's carelessness or operation of a person other than the main user (eg, infants, companion animals, etc.) at the cut-off time Among them, functions other than the release of the child lock function) can be prevented from being performed.

For example, when the electric rice cooker is applied as an example of the heating device 100a, the time measurement unit 130 operates the cook button of the input unit 10 so that the heating unit 140a performs a cooking function, The heating unit 140a measures the start time and the end time of the cooking function, and provides the measured start time and end time as time information to the control unit 120 , and the control unit 130 controls the time measurement unit 130 . The main use time may be set based on start times and end times included in a plurality of time information received from the , and the child lock function may be activated at a blocking time other than the main use time. Accordingly, the cooking function or other functions of the electric rice cooker (for example, functions other than the child lock function cancellation among functions selected by the user operation) are performed by the user's carelessness or the operation of a person other than the main user during the blocking time. can be prevented

4 is a flowchart illustrating a method of operating an electric device according to an exemplary embodiment of the present disclosure. The operation method of FIG. 4 shows a method of setting a main use time of an electric device, and may be performed in the electric device 100 of FIG. 1 and the heating device 100a of FIG. 2 .

Referring to FIG. 4 , when the electric device performs a first function, the time measuring unit 130 may measure a start time and an end time at which the first function is performed ( S110 ). In this case, the first function may be a function performed as power is applied to the electrical device, a unique function of the electrical device, or a set specific function. For example, the time measuring unit 130 is the time when the power button (11 in FIG. 2) is pressed and power is applied to the functional unit of the electric device, for example, the heating unit (140 in FIG. 2), and the power button 11 is pressed to the electric device. It is possible to measure the time when the power applied to the functional part of the unit is cut off. In an embodiment, the time measuring unit 130 may measure the time when the electric device performs the first function for a set predetermined period (eg, one month, one week, etc.). The time measuring unit 130 may provide time information including the measured times, for example, a function start time and a function end time, to the control unit 120 .

The controller 120 may classify the measured start time (ie, function start time) and end time (ie, function end time) into a plurality of time groups ( S120 ). The controller 120 may classify a plurality of start times and a plurality of end times included in a plurality of time information received from the time measurement unit 130 into a plurality of time groups. For example, the controller 120 may group a plurality of start times and a plurality of end times into a similar time range or divide the plurality of start times and a plurality of end times into a plurality of preset time groups.

The controller 120 may set a start time and an end time of a time group based on start times and end times allocated to each of the plurality of time groups ( S130 ). For example, the controller 120 may calculate a start time (eg, an operation start time) and an end time (eg, an operation end time) for the first time group based on start times and end times corresponding to the first time group. have. In an embodiment, the controller 120 sets the earliest time among the start times or the average time of the start times as the start time of the first time group, and sets the average time of the earliest time or the end times among the end times It can be set as the end time of the 1 hour group.

Accordingly, the controller 120 may set (calculate) the main use time including a plurality of time groups (S140). The main usage time may include a plurality of time groups that are not consecutive to each other. The controller 120 may set a time other than the main use time as the blocking time. For example, the main use time may be set in units of one day, and a time that does not correspond to a plurality of time groups included in the main use time of the day may be set as a blocking time. However, the present invention is not limited thereto, and the main usage time may be set on a monthly or weekly basis. In an embodiment, the main usage time may be updated periodically or aperiodically according to a user's request or occurrence of a specific event.

The control unit 120 may set the child lock function in a time other than the main use time, that is, a blocking time (S150). In other words, the control unit 120 may automatically activate the child lock function at the cut-off time.

5 is a diagram illustrating a method for setting a main use time of an electric device according to an exemplary embodiment of the present disclosure. The method of FIG. 5 is an example of steps S120 to S140 of FIG. 4 , and may be performed in the electric device 100 of FIG. 1 and the heating device 100a of FIG. 2 .

Referring to FIG. 5 , the controller 120 stores the start time and end time at which the first function included in the time information received from the time measurement unit 130 is performed in a storage area in the electronic device, for example, the memory 121 . can In an embodiment, the memory 121 may be provided in the controller 120 .

The controller 120 may receive a plurality of time information, and store a plurality of start times ST1 to ST7 and a plurality of end times ET1 to ET7 included in the plurality of time information in the memory 121 . . The controller 120 may classify the plurality of start times ST1 to ST7 and the plurality of end times ET1 to ET7 into a plurality of time groups, for example, a first time group, a second time group, and a third time group. . Although three time groups are illustrated in FIG. 5 , the number of time groups is not limited thereto, and the number of time groups may be determined according to a usage characteristic of an electric device or temporal characteristics of a plurality of measured start times and a plurality of end times.

For example, the control unit 120 analyzes the plurality of start times ST1 to ST7 and the plurality of end times ET1 to ET7 so that the plurality of start times ST1 to ST7 and the plurality of end times ET1 to ET7 are similar. According to a time range, that is, adjacent times can be grouped. Alternatively, the control unit 120 sets the first time group, the second time group, and the third time group and time ranges of each of the time groups in advance, and sets a plurality of start times ST1 to ST7 and a plurality of end times ET1 to ET7) may be classified into a corresponding time group among the first time group, the second time group, and the third time group.

For example, in FIG. 5 , a first start time ST1, a third start time ST3, and a fourth start time ST4, a first end time ET1, and a third end time corresponding to the morning time zone (ST4) ET3) and the fourth end time ET4 may be classified into the first time group. In addition, the fifth start time (ST5), the seventh start time (ST7), the fifth end time (ET5), and the seventh end time (ET7) corresponding to the lunch time period are classified into the second time group, and The corresponding second start time ST2 , the sixth start time ST6 , the second end time ET2 , and the sixth end time ET6 may be classified into a third time group.

The controller 120 may set a start time and an end time corresponding to each time group based on start times and end times for each of the first time group, the second time group, and the third time group. In an embodiment, the controller 120 may set the earliest time among the start times and the last time among the end times corresponding to each time group as the start time and the end time of the corresponding time group. In another embodiment, the controller 120 averages each of the start times and the end times corresponding to each time group, and sets the average start time and the average end time as the start time and end time of the corresponding time group. can

For example, in FIG. 5 , the controller 120 controls a fourth start time ST4 that is the earliest among the first start time ST1, the third start time ST3, and the fourth start time ST4 classified into the first time group. ), 08:59, may be set as the start time SST1 of the first time group. In addition, the control unit 120 sets the first end time ET1, which is the latest among the first end time ET1, the third end time ET3, and the fourth end time ET4, at 10:05 to the first time group. can be set as the end time (ET1) of In a similar manner, the control unit 120 controls the second start time SST2 and the second end time SET2 of the second time group, and the third start time SST3 and the third end time of the third time group ( SET3) can be set.

In addition, the controller 120 may set the first time group, the second time group, and the third time group as the main use time. Accordingly, the main usage time may include a first time group, a second time group, and a third time group that are not continuous with each other. The control unit 120 blocks times other than the main use time, for example, from 00:00 to 08:58, from 10:06 to 12:49, from 14:21 to 19:44, and from 21:16 to 00:00. Time can be set. As described above, the control unit 120 may set the child lock function in a time other than the main use time, that is, a blocking time. That is, the child lock function may be activated during the blocking time.

With reference to FIG. 5 , a method for setting a main use time of an electric device according to an exemplary embodiment of the present disclosure has been exemplarily described. However, the technical spirit of the present disclosure is not limited thereto, and may include a range changeable by a person skilled in the art based on the setting method of FIG. 5 .

6 is a flowchart illustrating a method of operating an electric device according to an exemplary embodiment of the present disclosure. The operation method of FIG. 6 shows an operation method when a user operation is detected in a state in which the child lock function is automatically set, and may be performed in the electric device 100 of FIG. 1 and the heating apparatus 100a of FIG. 2 .

Referring to FIG. 6 , the electric device may stand by in a state in which the child lock function is automatically set ( S210 ), and a user manipulation may be detected in the standby state ( S220 ). For example, when the user presses the input means of the input unit 10, for example, the power button (11 in FIG. 2), the input unit 10 transmits a user input signal according to the operation of the power button 11 to the control unit 120 and , the control unit 120 may detect a user operation.

The controller 120 may determine whether the time when the user manipulation is sensed is the main use time (S230). That is, the controller 120 may determine whether the child lock function is activated.

If it is determined that it is not the main use time, that is, if the child lock function is not activated, the electric device may perform another function for user manipulation ( 280 ). For example, the control unit 120 may control the functional unit of the electric device, for example, the heating unit 140a of FIG. 2 to perform a function according to a user operation, for example, a heating function.

On the other hand, if it is determined as the main use time, that is, when the child lock function is activated, the electric device may notify the user that the child lock function is set ( S240 ). The controller 120 may control the output unit 20 to output a notification signal indicating that the child lock function is set. For example, when the user interface 110a of FIG. 2 is implemented as a touch screen, the child lock button 13 may blink to indicate that the child lock function is set.

Thereafter, the control unit 120 may check whether a child lock function release signal is received ( S250 ). For example, when the user operates a specific input means (for example, the child lock button 13) of the input unit 10 or operates a specific input means according to a preset method (for example, the stop button 12 is pressed in advance) operation according to the pattern), the controller 120 may determine that the child lock release signal has been received.

When the child lock function release signal is not received, the control unit 120 may maintain the child lock function activated state ( S260 ). For example, the control unit 120 may ignore the selection by the user's manipulation of the input means or block the first function from being performed. Thereafter, the electric device may stand by in a state in which the child lock function is automatically set ( S210 ).

When the child lock function release signal is received, the controller 120 may release the child lock function ( S270 ). Thereafter, a function according to a user operation may be performed (S280). For example, when the user presses the power button 11 of the input unit 10 after the child lock function is released, a unique function of the electric device, for example, a heating function of the heating unit 140a may be performed.

In this way, the electric device automatically sets the child lock function at a time other than the main use time, that is, the cut-off time, but when a user operation is detected, notifies the user that the child lock is in the state, and when the user releases the child lock function, that is, the child lock function When the lock release signal is received, the child lock function is released, and operation can be performed according to the user's manipulation.

7 is a flowchart illustrating a method for updating a main usage time of an electric device according to an exemplary embodiment of the present disclosure. The method of FIG. 7 may be performed in the electric device 100 of FIG. 1 and the heating device 100a of FIG. 2 .

Referring to FIG. 7 , the control unit 120 may automatically set the child lock function at a time other than the main use time, that is, a blocking time ( S310 ). Thereafter, as described with reference to FIG. 6 , when the child lock function release signal is received, the controller 120 may release the child lock function ( S320 ).

The electric device may perform a first function according to a user operation, for example, a function performed when power is applied to the electric device, a unique function of the electric device, or a specific set function ( S330 ). When the first function is performed, the electric device may update the main use time ( S340 ). The electric device may update the main use time by performing steps S110 to S140 of FIG. 4 . For example, when the first function is performed, the time measuring unit 130 measures a start time and an end time, and the controller 120 measures at least one time among a plurality of time groups based on the measured start time and end time. By recalculating the start time and end time for the group, the main usage time can be updated.

As described above, when the child lock function is released and the electric device operates at a time other than the preset main use time, the main use time may be updated by updating the main use time. However, the technical spirit of the present disclosure is not limited thereto, and the electric device may periodically update the main use time or aperiodically update the main use time according to a user's request or occurrence of a specific event.

Exemplary embodiments have been disclosed in the drawings and specification as described above. Although the embodiments have been described using specific terms in the present specification, these are used only for the purpose of explaining the technical spirit of the present disclosure and are not used to limit the meaning or the scope of the present disclosure described in the claims. . Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present disclosure should be defined by the technical spirit of the appended claims.

Claims (8)

In an electric device,
an input/output unit having input means for selecting functions of the electric machine and output means for indicating a state of the electric machine;
a time measuring unit for generating time information about a time for which the heating function is performed by measuring a time during which the heating function of the electric device is performed; and
a control unit that sets a main use time based on the time information and automatically activates a child lock function that blocks execution of the heating function in a cut-off time excluding the main use time,
The child lock function is automatically activated even if the user does not operate the input means during the blocking time, and when the child lock function is automatically activated during the blocking time, the user operates the input means during the blocking time to operate the heating function An electric device that does not perform the heating function even when . delete According to claim 1, wherein the time measuring unit,
The electric device, characterized in that measuring the start time and the end time at which the heating function is performed, and transmitting the time information including the measured function start time and the function end time to the control unit. According to claim 1, wherein the main use time,
An electrical device comprising a plurality of time groups that are not continuous with each other. According to claim 4, wherein the control unit,
Classifying a plurality of function start times and a plurality of function end times included in the time information received from the time measurement unit into the plurality of time groups, and a function start time classified into a first time group among the plurality of time groups and setting a start time and an end time of the first time group based on the functions and the function end times. According to claim 4, wherein the control unit,
The electric device according to claim 1, wherein the plurality of time groups and the main use time are set based on a day. According to claim 1, wherein the control unit,
When a user operation through the input means is detected while the child lock function is automatically activated, the output means is controlled to indicate that the child lock function is set, and a child lock function release signal is transmitted through the input means When received, the electric device, characterized in that to release the child lock function. The method of claim 6, wherein the control unit,
When the heating function is performed after the child lock function is released, the main use time is updated based on the time the heating function is performed.

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