JP2009014273A - Electric apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric apparatus, preventing a child or the like from operating carelessly by the automatic setting of a child safety lock function. <P>SOLUTION: When power is applied to the electric apparatus by connection to a socket, automatically the child safety lock function is made effective, so that small children are inhibited from being free to operate the apparatus. As far as the child safety lock function is not released, the apparatus cannot be operated so that the safety can be improved. Moreover, when a predetermined time elapses after releasing the child safety lock function, the child safety lock function is automatically made effective to prevent the unsafe state due to forgetting to set a child safety lock function. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electric device having a lock function such as a child lock function that disables operation of various operation keys of an operation unit for instructing operation or setting of the device main body.

  In general, electrical equipment is usually connected to a power outlet even when not in use. This is a state in which electric power is supplied to the electric device. At this time, when the operation button is pressed, the operation is started.

  However, there is a possibility that the operation button may be unintentionally pushed by a small child or the like, and in the case of a device having a heating means such as a heater and using a large current, the user may be exposed to danger.

  In order to solve this, the child lock function described in Patent Document 1 can be set by a switch operation, thereby preventing an inadvertent operation by a child or the like.

  By the way, at the time of a power failure or when the plug is removed from the power outlet, the power is not supplied to the electric equipment and the power is turned off, and the operation state before the power is turned off is reset. Therefore, in this case, even if the child lock function is set before the power is turned off, the child lock function is not set when the power is turned on again. Therefore, it is necessary to set the child lock function again.

To solve these problems, the child lock function is set before turning off the power by saving the operation mode before turning off the power as data in the nonvolatile memory and acquiring the data when the power is turned on. Thus, Patent Document 2 describes control that enables the child lock function even when the power is turned on.
Japanese Patent Laid-Open No. 11-280692 JP 2001-349552 A

  However, in the invention according to Patent Document 2, if the child lock function is not set before the power is turned off, the child lock function is not effective when the power is turned on. In other words, if the state when the electric device is unplugged from the outlet is not remembered, it cannot be determined whether or not the child lock function is set when the power is turned on again. Also, there is a problem that safety cannot be ensured if the child lock function is forgotten to be set.

  In view of the above, an object of the present invention is to provide an electric device in which a child lock function is automatically set and an inadvertent operation of a child or the like can be prevented.

  In order to achieve the above object, in the present invention, in an electric device having an operation lock function for disabling operation of various operation keys of an operation unit for instructing operation or setting of the device body, A control unit that controls invalidation is provided, and the control unit enables the operation lock function when the device main body is connected to a commercial power outlet when the power is turned on.

  Further, in the present invention, in an electric device having an operation lock function for disabling operation of various operation keys of the operation unit for instructing operation or setting of the device main body, a control unit for controlling validity / invalidity of the operation lock function The control unit automatically enables the operation lock function after a predetermined time has elapsed after the operation lock function is released.

  According to the present invention, the child lock function is automatically enabled when the power is turned on regardless of whether the setting of the child lock function before turning off the power is valid or invalid. Can be reliably prevented. Further, since the child lock function is automatically enabled after a predetermined time after the child lock is released, it is possible to prevent forgetting to set the child lock function and to ensure safety.

  Hereinafter, an embodiment of an electric heating device equipped with a humidifier according to the present invention will be described with reference to the drawings. 1 is a schematic perspective view of the front side of an electric heating device equipped with a humidifier, FIG. 2 is a schematic exploded perspective view of the front side, FIG. 3 is a schematic perspective view of the back side of the electric heating device, and FIG. It is a schematic block diagram which shows the flow of the air seen from the side surface of heating equipment.

  The apparatus main body 1 of the electric heating apparatus in the present embodiment is formed in a box shape as shown in FIGS. 1 to 3. A blower outlet 3 for releasing warmed or humidified air to the outside of the device is formed in the lower front portion of the device main body 1, and a water storage tank storage portion for storing the water tank 4 is formed above it. The tank 4 can be detachably stored by the tank cover 2 on the front surface.

  As shown in FIGS. 3 and 4, an air suction port 5 is formed in the upper portion of the apparatus main body 1, and an air passage 6 is formed from the air suction port 5 to the front air outlet 3. 6, a humidifying filter body 8 provided with a humidifying filter 7, a ceramic heater 9 as a heating body for heating the air passing through the passage 6, and a blower as a blowing means for sending air to the humidifying filter body 8 and the ceramic heater 9 10 are arranged.

  As described above, the electric heating device of the present embodiment includes a heating device 9 that heats the passing air and a heating device that includes the blower 10 that sends air to the heating member 9, and a humidification that includes the water tank 4 and the humidification filter 7. The device is the main functional component. In addition, the air blower 10 functions also as a ventilation means of a humidifier. That is, the electric heating device of the present embodiment can be operated not only as a single operation of the heating operation but also as a combined operation of the heating operation and the humidifying operation, or as a single operation of the humidifying operation. Even when the humidification operation is performed independently, the blower 10 is driven to blow out the humidified air from the outlet 3.

  The ceramic heater 9 is controlled so as not to be used as much as possible during operation of the humidifier, and to be driven when it is desired to accelerate the rise of humidification or when a large amount of humidification is generated.

  As shown in FIGS. 4 and 5, the humidifier includes a water tank 4, a humidifying tray 11 that receives water supplied from the water tank 4 and stores water at a constant water level therein, and a humidifying filter 7 that absorbs water. The humidifying filter body 8 including the water, the watering means for spraying the water of the humidifying tray 11 to the humidifying filter 7, and the blower 10 are provided.

  The water tank 4 is integrally formed with a tank main body 4a and an extension pipe 4b extending downward from the bottom surface of the water tank 4, and the extension pipe 4b is stored in the apparatus main body 1. Is set to a length such that the tip of the humidifying tray 11 is submerged in water.

  The watering means comprises a pumping pump 12 installed in the water in the humidifying tray 11, a humidifying box 13 installed so as to cover the top of the humidifying filter body 8, and a connecting pipe 14 connecting the pump 12 and the humidifying box. Is done. A plurality of water spray holes (not shown) are formed on the entire bottom surface of the humidification box 13, and water is uniformly supplied to the entire humidification filter 7 from the water spray holes.

  As shown in FIGS. 5 and 6, the humidifying filter body 8 includes a humidifying filter 7 and a frame body 15 on which the humidifying filter 7 is mounted and held. The humidifying filter 7 is a zigzag formed by continuously bending a nonwoven fabric having a predetermined thickness with water absorption as viewed from above into a W shape. Air is blown onto the folded curved surface and adsorbed on the filter 7. I try to vaporize the water.

  As shown in FIG. 6, the frame 15 has a horizontally-long rectangular parallelepiped box shape that is open in the front-rear direction and the upper direction, and the left and right side surfaces and the bottom surface are closed surfaces. In this state, the folded curved surface of the filter 7 faces the open surface of the frame 15.

  Next, the operation of the above-described electric heating device will be described. The electric heating device is provided with a control unit composed of a microcomputer, and when each switch of the operation unit 16 described below is pressed, the blower 10, the ceramic heater 9 and the pump 12 are controlled in response to the signal. ing. The operation unit 16 has various operation keys for performing an operation instruction or a setting instruction for the apparatus main body. For example, as shown in FIG. 7, a power switch 21, a heating switch 22, a humidifying switch 23, and a child lock switch 24 are provided.

  In particular, when the child lock switch 24 is pressed for 1 second or longer, the operation lock function, that is, the child lock function is repeatedly enabled / disabled. In other words, when the child lock function is enabled, if the child lock function is pressed for 1 second or longer, the child lock function is disabled. When the child lock function is disabled, if the child lock switch is pressed for more than 1 second, the child lock function is disabled. Enable the function.

  The control unit 25 that controls the validity / invalidity of the operation lock function enables the operation lock function, that is, the child lock function, when the apparatus is connected to a commercial power outlet (not shown). In addition, after the child lock switch 24 is turned on and the operation lock function is released, the control unit 25 automatically enables the operation lock function when a predetermined time elapses.

  Here, the predetermined time means that the child lock function is automatically enabled when the child lock function is released, the predetermined operation is performed, and the child lock switch is forgotten to be pressed. However, the present invention is not particularly limited thereto.

  Next, operation | movement of a heating apparatus is demonstrated. When the power switch 21 of the operation unit 16 shown in FIG. 7 is turned “ON” and the heating switch 22 is pressed to select the automatic operation mode, the automatic heating operation starts. When the heating switch 22 is sequentially pushed, the heating operation mode of “automatic” → “off” → “weak” → “strong” → “automatic” is selected, and the heating operation is performed in the selected heating operation mode.

  In the heating automatic operation mode, a signal from a temperature sensor (not shown) is input, and automatic operation is performed by controlling the ceramic heater 9 and the blower 10 so that the room temperature becomes a set temperature (for example, 22 ° C.).

  In the “strong” operation mode other than the automatic heating operation, the ceramic heater 9 is continuously operated at a maximum of 1200 W regardless of the room temperature. In the “weak operation”, the ceramic heater 9 is continuously operated at 600 W regardless of the room temperature. The air sucked from the blower 10 passes through the ceramic heater 9, is heated, and is discharged from the outlet 3.

  Next, the operation of the humidifier will be described. First, the tank cover 2 of the device main body 1 is opened, and the water tank 4 is set in the device main body 1. Then, when the power switch 21 of the operation unit 16 is set to “ON” and the humidification switch 23 is pressed to select the automatic operation mode, the humidification automatic operation starts. When the humidification switch 23 is pushed forward in sequence, the humidification operation mode of “continuous” → “no-ruoi” (automatic) → “off” is selected, and the humidification operation is performed in the selected humidification operation mode.

  The humidification operation of the automatic humidification operation mode “Nodorioi” automatically changes the humidification amount by combining the output of the ceramic heater 9 and the air volume of the blower 10 according to the difference between the detected humidity and the set humidity. Humidification is controlled.

  Further, the “continuous” humidification operation performs the continuous humidification operation regardless of the humidity. During this humidification operation, a large amount of moisture can be removed from the humidification filter 7 by warming the sucked air with the ceramic heater 9 and allowing the air having a high temperature to pass through the humidification filter 7. , Can release air with much moisture.

  As described above, normally, when the humidification operation is performed alone in the automatic mode, the ceramic heater 9 is not driven, but when the operation with a large amount of humidification (continuous operation) is performed or when the heating switch 22 is turned on. Since the ceramic heater 9 is driven, the usability is good and the usability is improved.

  Next, the child lock function will be described with reference to FIG. When the power is turned on, the child lock function is automatically enabled and the operation button of the operation unit 16 is disabled. At this time, the child lock function is canceled by continuously pressing the child lock switch 24 for one second, and various operations can be performed by pressing each switch of the operation unit 16.

  When the child lock function is released, the child lock function is again activated by pressing the child lock switch 24 continuously for one second. Even if the child lock function is not set by the child lock switch 24, the child lock function is automatically enabled when a predetermined time elapses after the child lock function is released. However, when the child lock function is valid, only the power-off operation is valid, and the other operation buttons are invalid.

  When the power is turned on, the child lock function is effective in any case, and the electric device cannot be operated unless it is canceled. Prevent small children from operating without permission and improve safety. In addition, when a predetermined time elapses after the child lock function is released, the child lock function is automatically enabled to prevent an unsafe state due to forgetting the child lock setting.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added within the scope of the present invention. For example, in the above-described embodiment, the electric heating device equipped with the humidifying device has been described. However, the present invention is not limited to such an electric heating device, but can be applied to various electric devices that require an operation lock function.

The schematic perspective view of the front side of the electric heating equipment which concerns on this invention 1 is a schematic exploded perspective view of FIG. The schematic perspective view of the back side of the electric heating apparatus in FIG. Schematic block diagram seen from the side of the electric heating equipment in FIG. Schematic of the assembled state of the humidification filter and humidification box from the front side The perspective view which looked at the humidification filter body from the front side Schematic diagram of the operation unit in FIG. Control flow chart for explaining the child lock function of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Tank cover 3 Air outlet 4 Water tank 5 Air inlet 6 Air passage 7 Humidification filter 8 Humidification filter body 9 Ceramic heater 10 Blower 11 Humidity tray 12 Pump 13 Humidity box 14 Connection pipe 15 Frame body 16 Operation part 21 Power supply Switch 22 Heating switch 23 Humidification switch 24 Child lock switch

Claims (3)

  In an electric device having an operation lock function for disabling operation of various operation keys of an operation unit for instructing operation or setting of the device main body, a control unit for controlling validity / invalidity of the operation lock function is provided, and the control The electrical device is characterized in that the lock function is enabled when power is turned on to connect the device body to a commercial power outlet.   In an electric device having an operation lock function for disabling operation of various operation keys of an operation unit for instructing operation or setting of the device body, a control unit for controlling validity / invalidity of the operation lock function is provided, and the control The device automatically activates the lock function after a predetermined time has elapsed after the lock function is released. In an electric device having an operation lock function for disabling operation of various operation keys of an operation unit for instructing operation or setting of the device main body, a control unit for controlling validity / invalidity of the operation lock function is provided, and the control The section activates the lock function when the device main body is connected to a commercial power outlet, and automatically activates the lock function after a predetermined time elapses after the lock function is released. And electrical equipment.

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