JP2008032313A - Electrical equipment - Google Patents

Abstract

An object of the present invention is to provide an electrical device that achieves both safety and convenience.
A heating device, a vibration detector for detecting vibration applied to the device body, and an operation switch 25 are turned on to control the energization of the heating device. And a control device 19 that determines whether or not the vibration is abnormal from the detection signal of the vibration detector 18 and stops energization control to the heating element 9 when it is determined that the vibration is abnormal. The control device 19 is characterized in that a determination is made as to whether or not the vibration is abnormal by providing an invalid period that is invalid for a certain period from when the operation switch 25 is turned on.
[Selection] Figure 5

Description

  The present invention relates to a movable electric device provided with a heating element.

Conventionally, heating equipment includes a heating element and a combustion device. As a safety measure in the event of a fall due to an earthquake or the like, as described in Patent Document 1, a seismoscope is provided in order to detect vibrations and shocks caused by an earthquake or the like. When the seismoscope detects vibration, the operation is immediately stopped. As described above, in recent years, electric appliances equipped with a heat generator have been increasing in number with an earthquake sensor.
Japanese Patent Laid-Open No. 11-173565

  However, vibration is generated when an electric heater, humidifier, dehumidifier, etc. that is designed to be relatively lightweight and portable among electric devices equipped with a heating element is generated, but this vibration is detected. When the operation switch is turned on, the operation stops and the convenience deteriorates.

  SUMMARY An advantage of some aspects of the invention is to provide an electric device that achieves both safety and convenience.

  In order to solve the above-described problems, in the present invention, the movable device main body is provided with a heating element, a vibration detector that detects vibration applied to the device main body, and the operation switch is turned on to energize the heating element. There is provided a control device that starts control, determines whether vibration is abnormal from the detection signal of the vibration detector, and stops energization control to the heating element when it is determined that vibration is abnormal. In the electrical equipment, the control device is characterized by providing an invalid period in which the determination as to whether the vibration is abnormal is invalid for a certain period from when the operation switch is turned on.

  According to the above configuration, even if the power is turned on immediately after the electric device is moved and the vibration is still detected by the vibration detector, the abnormality of the vibration of the control device is maintained during the invalid period. Judgment is invalid. Therefore, energization control to the heating element is not stopped, and convenience is not impaired. In other words, the influence due to the movement of the electric equipment is reduced by providing a certain grace period from when the power is turned on until the control device starts to determine the abnormality of the vibration.

  On the other hand, when the control device determines that the vibration is abnormal based on the detection signal from the vibration detector after the invalid period has elapsed, the safety should be secured by immediately stopping the energization control to the heating element. Can do.

  In order for the control device to determine whether the vibration is abnormal based on the detection signal from the vibration detector, the vibration is abnormal when the detection signal is an ON signal having a length exceeding a predetermined reference time. Judgment should be made. As a result, short-time minor vibrations that do not satisfy the reference time are not determined as abnormal vibrations, and convenience can be maintained.

  On the other hand, the vibrations that occur when moving electrical equipment are often long-period vibrations. To prevent this from being determined as abnormal vibrations, the invalid period should be longer than the reference time. It is desirable to set. Specifically, it is preferable to set the invalid period in the range of 0.5 seconds to 1.5 seconds and the reference time in the range of 0.1 seconds to 0.3 seconds.

  Moreover, it is preferable to install the vibration detector in the lower part of the apparatus main body. That is, when the device body vibrates, the amplitude is larger in the upper part than in the lower part of the device body. Therefore, by installing the vibration detector at the lower part of the device main body, it is possible to prevent the vibration detected by the device main body from being detected even though the vibration applied to the device main body is slight. .

  The electric device according to the present invention has many opportunities for movement, such as an electric device in which a caster is provided in the device main body and the device main body is movable, and an electric device in which a handle is provided in the device main body and is easily carried. The present invention can be particularly suitably applied to an expected electric device.

  Furthermore, in an electric device equipped with a liquid tank, such as an electric fan heater equipped with a humidifier or a dehumidifier equipped with a heating element that heats blown air, the electric device is moved and then accommodated in the liquid tank. The vibration of the device will continue to vibrate for a while. Even in such a case, by setting the control device as described above, the energization control to the heating element is not likely to be stopped, and the convenience can be maintained.

  The electric device according to the present invention can be applied without particular limitation as long as it has a heating element, but is particularly suitable for achieving both safety and convenience of an electric heating device having a large output of the heating element. is there.

  As described above, according to the present invention, the energization control to the heating element is started by turning on the operation switch, and whether or not the vibration is abnormal is determined from the detection signal of the vibration detector. In the control device that stops energization control to the heating element when it is determined that the vibration is abnormal, the invalid period during which the determination as to whether the vibration is abnormal is disabled for a certain period from when the operation switch is turned on Therefore, even if the operation switch is turned on immediately after the electric device is moved, it is determined that the vibration is abnormal, the energization control to the heating element is not stopped, and the convenience can be prevented from being lowered.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of an electric heating device equipped with a humidifier will be described with reference to the drawings as an electric device according to the present invention. FIG. 1 is a schematic perspective view of the front side of an electric heating device equipped with a humidifier, and FIG. 2 is a schematic configuration diagram showing the air flow as viewed from the side of the electric heating device.

  The apparatus main body 1 of the electric heating apparatus in the present embodiment is formed in a box shape as shown in FIGS. 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 opening the tank cover 2 on the front side.

  As shown in FIG. 2, an air suction port 5 is formed in the upper portion of the device main body 1, and an air passage 6 extending from the air suction port 5 to the front air outlet 3 is formed. The humidification filter body 8 provided with the filter 7, the heat generating body 9 which heats the air which passes the channel | path 6, and the air blower 10 as a ventilation means which sends air to these humidification filter bodies 8 and the heat generating body 9 are arrange | positioned. . A ceramic heater is used as the heating element 9. Further, a handle portion 17 for carrying the electric heating device is formed on the upper portion on the back side of the device main body 1.

  As described above, the electric heating device of the present embodiment includes a heating device including the heating element 9 that heats the passing air and the blower 10 that sends air to the heating element 9, and a humidification that includes the water tank 4 and the humidification filter 7. The device is the main functional component.

  As shown in FIGS. 2 and 3, the humidifier includes a water tank 4, a humidifying tray 11 that receives water from the water tank 4 and stores water at a constant water level therein, and a humidifying filter 7 having water absorption. A humidifying filter body 8 including water, a watering means for spraying water from the humidifying tray 11 to the humidifying filter 7, and a blower 10.

  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 FIG. 3, 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 folding 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.

  And in the electric heating apparatus in this embodiment, the vibration detector 18 which detects the vibration added to the apparatus main body 1 is provided in the lower part of the apparatus main body 1. FIG. The vibration detector 18 is a general seismic instrument including a sphere and a switch that is turned on and off in accordance with the movement of the sphere.

  A detection signal detected by the vibration detector 18 is input to the control device 19, and energization to the heating element 9 is controlled. As shown in FIG. 4, the control device 19 includes a microcomputer, and is connected to a humidity detector 20 that detects indoor humidity, a room temperature detector 21 that detects room temperature, and a vibration detector 18. Also connected to the control device 19 are a motor drive circuit 22 for driving the motor of the blower 10, a heater drive circuit 23 for energizing the heater 9, and a motor drive circuit 24 for driving the motor of the pump 12. Is done.

  Next, the operation of the above-described electric heating device will be described. As shown in FIG.1 and FIG.6, the operation part 16 is provided in the upper part of the electric heating apparatus, and if the operation switch 25 is pushed, heating automatic operation and humidification automatic operation will be started. That is, the blower 10 is driven and energization control to the heater 9 is started.

  The operation control of the electric heating equipment after the operation switch 25 is pushed (turned on) will be described based on the flowchart of FIG. First, after the operation switch 25 is turned on, when the vibration detector 18 detects vibration, a detection signal is input to the control device 19. The control device 19 determines whether or not the detection signal input from the vibration detector 18 is detected within the invalid period, and if it is within the invalid period, the operation (control of energization to the heating element) is continued. .

  On the other hand, when the detection signal output from the vibration detector 18 is detected after the invalid period has elapsed, the control device 19 determines whether the detection signal exceeds the reference time, and exceeds the reference time. If not, the operation is continued. If the reference time is exceeded, it is determined that the vibration is abnormal and the operation is immediately stopped.

  When stopping the operation, the control device 19 not only stops the energization control to the heating element, but also stops the drive of the blower 10 and the pump 12. When the operation is stopped by abnormal vibration (abnormal stop), the abnormal stop state is canceled by pressing the operation switch 25. Furthermore, by pressing the operation switch 25, the operation control of the electric heating equipment is started again.

  Heating operation is not only automatic operation, but when the heating switch 26 of the operation unit 16 is pushed forward, the heating operation mode of “automatic” → “off” → “weak” → “strong” → “automatic” is selected and selected. The heating operation can be performed in the heating operation mode.

  In the heating automatic operation mode, a signal from the room temperature detector 21 is input, and the energization control to the heating element 9 and the drive of the blower 10 are controlled automatically so that the room temperature becomes a set temperature (for example, 22 ° C.). Do the driving.

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

  Humidification operation is not only automatic operation, but when the humidification switch 27 of the operation unit 16 is pushed forward, the humidification operation mode of “continuous” → “moisture” (automatic) → “off” is selected, and the selected humidification operation mode is selected. Humidified operation at.

  In the humidifying operation of the “humidified” automatic humidifying operation mode, the humidification amount is controlled by combining the energization control of the heating element 9 and the air volume of the blower 10 according to the difference between the humidity detected by the humidity detector 20 and the set humidity. The humidification is controlled automatically.

  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 heating the air that has been sucked in by the heating element 9 and allowing the heated air to pass through the humidification filter 7. , Can release air with much moisture.

  The electric heating device of the present embodiment is provided with a handle portion 17 and is easy to carry. Further, since the humidifying water tank 4 and the humidifying tray 11 are provided, immediately after the electric heating device is moved, the water stored in the water tank 4 and the humidifying tray 11 is swung, and the device main body 1 is Prone to vibrate.

  Even in such a case, in the electric heating apparatus according to the present invention, after the operation switch 25 is turned on, the detection signal from the vibration detector 18 is invalidated for a certain period, thereby causing slight vibration caused by movement. Therefore, it is possible to avoid stopping the operation by determining that the vibration is abnormal vibration. Therefore, both convenience and safety as an electric device can be achieved.

The schematic perspective view of the front side of the electric heating equipment which concerns on this invention Schematic block diagram seen from the side of the electric heating equipment in FIG. Schematic of the humidified filter body in Fig. 1 as seen from the front side Block diagram of an electric heating device according to the present invention Flow chart of operation control after operation switch is ON Schematic diagram of the operation unit in FIG.

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 Heating body 10 Blower 11 Humidity tray 12 Pump 13 Humidification box 14 Connection pipe 15 Frame body 16 Operation part 17 Handle Unit 18 Vibration detector 19 Control device 20 Humidity detector 21 Room temperature detector 22 Motor drive circuit 23 Heater drive circuit 24 Motor drive circuit 25 Operation switch 26 Heating switch 27 Humidification switch W Water

Claims (5)

On the movable device body, the heating element, the vibration detector that detects the vibration applied to the device body, and the energization control to the heating element are started by turning on the operation switch, and the detection signal of the vibration detector In the electrical equipment provided with a control device that determines whether or not the vibration is abnormal and determines that the vibration is abnormal, the control device stops the vibration control. An electric device characterized by providing an invalid period for invalidating a certain period from the time when the operation switch is turned on. 2. The electric apparatus according to claim 1, wherein the control device determines that the vibration is abnormal when the detection signal from the vibration detector is an ON signal having a length exceeding a predetermined reference time. 4. The electric device according to claim 3, wherein the invalid period is set to be longer than the reference time. 4. The electric device according to claim 3, wherein the invalid period is set in a range of 0.5 seconds to 1.5 seconds, and a reference time is set in a range of 0.1 seconds to 0.3 seconds. The electric device according to claim 1, wherein the electric device is an electric heating device.

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