JP2015086865A - Electric fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce discomfort during sleeping and prevent adverse effects on user's health, such as overcooling during sleeping when the user uses an electric fan when sleeping.SOLUTION: After an air quantity notch is selected by a selector switch 4, when a sleeping operation mode is executed, control means 6 repeats control for lowering the air quantity notch in operation by one stage when a temperature measured by temperature measurement means 5 is equal to or lower than a temperature that was measured a first predetermined time ago by the temperature measurement means 5 after the operation is performed for the first predetermined time at the air quantity notch selected by the selector switch 4 and for continuing the air quantity notch in operation when the temperature measured by the temperature measurement means 5 is higher than the temperature that was measured the first predetermined time ago by the temperature measurement means 5. Thus, this configuration has effects, such as reduction of hot feeling due to insufficient sensible air quantity during sleeping and prevention of bedtime discomfort and interference with sleep.

Description

  The present invention relates to an electric fan that emits wind according to a set air volume.

  Conventionally, this type of electric fan has been known in which the air volume is sequentially reduced over time during driving at bedtime (see, for example, Patent Document 1).

  Hereinafter, the ventilation control method will be described with reference to FIG.

  As shown in FIG. 10, the air volume selection circuit 101, the rotation speed control circuit 102, and the motor 103 are provided with the adjuster 104 and the timer switch 105. The air volume is selected according to the setting of the regulator 104 and a rotation speed control signal is output to the rotation speed control circuit 102. The rotation speed control circuit 102 controls the rotation speed of the motor 103 according to the input signal. Also, the air volume selection circuit 101 that has input the timer start and set time signals from the timer switch 105 decreases the air volume value set by the regulator 104 in proportion to the elapsed time from the start of the timer, and sets the set time. When reaching the value, the rotation speed control circuit 102 is controlled to stop.

JP-A-1-253593

  In such a conventional fan, in the operation at bedtime, regardless of the ambient temperature situation, it was configured to decrease in proportion to the elapsed time from the start of the timer from the set air volume value, for example, In the case of a tropical night or after an air conditioner is driven by a timer, it has a problem that it feels uncomfortable at bedtime or sleeps because it feels hot due to insufficient air volume.

  Then, this invention solves the said conventional subject, and it aims at providing the electric fan which suppresses the unpleasantness at the time of going to bed and the sleep stagnation.

  In order to achieve this object, the present invention includes a main body, a motor portion provided in the main body, a blade portion rotated by the motor, and a changeover switch for setting a plurality of air volume notches with different air volumes, It comprises temperature measuring means for measuring the temperature outside the main body and control means for controlling the number of revolutions of the motor unit. This control means executes the sleep operation mode after selecting the air volume notch by the changeover switch. Then, after the first predetermined time operation with the airflow notch selected by the changeover switch, the temperature measured by the temperature measuring means is equal to or lower than the temperature measured by the temperature measuring means before the first predetermined time, If the air flow notch during operation is lowered by one step and the temperature measured by the temperature measuring means is higher than the temperature measured by the temperature measuring means before the first predetermined time, Continuing the air volume notches in, which was fan, characterized in that repetition of these control, thereby is to achieve the intended purpose.

  According to the present invention, a main body, a motor portion provided in the main body, a blade portion rotated by the motor, a changeover switch for setting a plurality of air volume notches having different air volumes, and a temperature outside the main body are measured. It comprises temperature measuring means and control means for controlling the number of revolutions of the motor unit. This control means selects the air volume notch with the changeover switch, and then executes the sleep operation mode and selects with the changeover switch. If the temperature measured by the temperature measuring means is equal to or lower than the temperature measured by the temperature measuring means before the first predetermined time after operating for the first predetermined time at the air volume notch, the air volume notch during operation is If the temperature measured by the temperature measuring means is higher than the temperature measured by the temperature measuring means before the first predetermined time, the air volume notch during operation is continued. By having a configuration of repeating these controls at bedtime, reducing to feel hot not have enough experience air volume, of and discomfort at bedtime, it is possible to obtain the effect of suppressing disturb sleep.

Schematic of the electric fan of Embodiment 1 of the present invention Figure showing details of the fan The conceptual diagram which shows the ventilation pattern of the electric fan The conceptual diagram which shows the ventilation pattern which lowers the air volume gradually of the electric fan Conceptual diagram showing the air blowing pattern that lowers the air volume taking into account the noise of the fan Conceptual diagram showing the minimum airflow notch when determining the minimum airflow notch after operation in the sleep operation mode according to the room temperature of the fan The conceptual diagram which shows the minimum airflow notch when the user of the electric fan of Embodiment 2 of this invention presumes whether it is hot or cold and determines the minimum airflow notch after operation in the night operation mode The figure which shows the detail of the electric fan of Embodiment 3 of this invention The conceptual diagram which shows the ventilation pattern which cannot be lowered below the air volume notch which the user of the same fan determines Block diagram of a conventional fan

  The electric fan according to claim 1 of the present invention includes a main body, a motor portion provided in the main body, a blade portion rotated by the motor, a changeover switch for setting a plurality of air volume notches having different air volumes, and the outside of the main body. Temperature measuring means for measuring the temperature of the motor unit, and control means for controlling the rotation speed of the motor unit, the control means, after selecting the air volume notch by the changeover switch, when the sleep operation mode is executed, When the temperature measured by the temperature measuring means is equal to or lower than the temperature measured by the temperature measuring means before the first predetermined time after the first predetermined time operation with the air volume notch selected by the changeover switch, If the air volume notch is lowered by one step and the temperature measured by the temperature measuring means is higher than the temperature measured by the temperature measuring means before the first predetermined time, the wind during operation Continued notch, a structure that repeats these control.

  As a result, when the ambient temperature is low at bedtime, the air volume notch during driving is lowered, the air volume hitting the body during sleep is reduced, and the body can be prevented from being too cold. In addition, when the ambient temperature is high, the air volume notch during driving is continued, so the sensory air volume does not change, and it can reduce the feeling of being hot during sleep, making it uncomfortable at bedtime and hiding sleep. There is an effect that it can be suppressed.

  Further, the control means is configured such that the temperature measured by the temperature measurement means is equal to or lower than the temperature measured by the temperature measurement means before the first predetermined time after operating for the first predetermined time at the airflow notch selected by the changeover switch. In this case, the air volume of the air volume notch during operation may be gradually reduced by one step over the first predetermined time.

  Thereby, since the change in the air volume is reduced, there is an effect that the user can feel uncomfortable and the burden on the body can be reduced.

  In addition, when the noise due to the air blowing of the blade part when the sleep operation mode is executed exceeds a predetermined noise value, the temperature measured by the temperature measuring unit is the temperature measuring unit. Even when the temperature is equal to or lower than the temperature measured before the first predetermined time, and when the temperature measuring means is larger than the temperature measured before the first predetermined time, the noise due to the air blown by the blade portion is the predetermined noise. You may make it the structure of lowering to the maximum notch lower than a value.

  As a result, noise caused by blowing air at the time of going to bed is reduced, so that it is possible to create a noise environment that does not disturb sleep while ensuring an air volume that does not feel uncomfortable at the time of going to bed.

  Further, the control means may be configured such that, after operating in the sleep operation mode, when the air volume notch determined according to the room temperature is reached, the control means does not lower to a lower level.

  As a result, the lower limit of the airflow notch changes depending on the room temperature that changes depending on the day, such as tropical nights and cool nights, so that you can sleep while ensuring an airflow that does not feel uncomfortable at bedtime, regardless of the difference in room temperature every day. The effect is that you can create an environment that won't fail.

  In addition, the control means, after operating in the sleep operation mode, after reaching the air volume notch determined according to the room temperature when the sleep operation mode is set and the user's set air volume notch when the sleep operation mode is set However, it may be configured such that it is not lowered to a lower stage.

  As a result, the lower limit value of the air volume notch is set by estimating whether the user is hot or cold from the user's air volume setting relative to the room temperature when the sleep operation mode is set, so the air volume that does not feel uncomfortable at bedtime is set. While ensuring, it has the effect of creating an environment that does not disturb sleep.

  Further, the control means may be configured such that, after operating in the sleep operation mode, when the airflow notch determined by the user is reached, the control means does not lower to a lower level.

  This allows the user to set the lower limit of the airflow notch according to his / her preference, so the airflow that does not feel uncomfortable at bedtime even when the user is hot or when the distance from the fan to the user is long. While ensuring, the effect that you can create an environment that does not disturb sleep.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the electric fan includes a main body 1, and a motor part 2 and a blade part 3 rotated by the motor part 2 at the upper part of the main body 1. The blade portion 3 is surrounded by a guard portion 7. When the motor unit 2 is driven, the blade unit 3 rotates and air can be blown by the blade unit 3. A changeover switch 4, temperature measuring means 5, and control means 6 are provided at the lower part of the main body 1.

  As shown in FIG. 2, the electric fan includes a control unit 6 connected to the motor unit 2, a changeover switch 4 connected to the control unit 6, and a temperature measurement unit 5. The changeover switch 4 includes a plurality of air volume notches with different air volumes and a sleep operation mode. For example, it has a first air volume notch, a second air volume notch, a third air volume notch, a fourth air volume notch, and a fifth air volume notch. In order from the first air volume notch to the fifth air volume notch, the air volume increases. The temperature measuring means 5 can measure the temperature outside the main body. The control means 6 can control the rotational speed of the motor unit 2 according to the temperature outside the main body measured by the changeover switch 4 and the temperature measuring means 5.

  A feature of this embodiment is that it has a sleep operation mode. As shown in FIG. 3, when the control means 6 executes the sleep operation mode after selecting the air volume notch by the changeover switch 4, the temperature measuring means 5 is operated after the air flow notch selected by the changeover switch 4 for the first predetermined time. Two types of control are performed according to the measured temperature. On the other hand, when the temperature measured by the temperature measuring means 5 is equal to or lower than the temperature measured by the temperature measuring means 5 before the first predetermined time, the air volume notch during operation is lowered by one step. On the other hand, when the temperature measured by the temperature measuring means 5 is higher than the temperature measured by the temperature measuring means 5 before the first predetermined time, the air volume notch during operation is continued.

  Specifically, when the fifth air volume notch is selected by the changeover switch 4 and the sleep operation mode is executed, the number of rotations of the motor unit 2 is controlled by the control means 6, and the motor unit 2 is controlled by the fifth air volume notch. Drive at rotational speed. The fifth air volume notch is operated for a first predetermined time, for example, 30 minutes.

  Then, the temperature measured by the temperature measuring means 5 at this time is compared with the temperature measured by the temperature measuring means 5 before the first predetermined time. Here, if the temperature measured by the temperature measuring means 5 at this time is equal to or lower than the temperature measured by the temperature measuring means 5 before the first predetermined time, the operating air volume notch, that is, the fifth air volume notch is set. , Lower by one step, to be the fourth air volume notch. If the temperature measured by the temperature measuring means 5 at this time is higher than the temperature measured by the temperature measuring means 5 before the first predetermined time, the air volume notch during operation, that is, the fifth air volume notch is continued. To do.

  Thus, by repeating these controls, when the ambient temperature is low, the air volume notch during driving is lowered, the air volume hitting the body during sleep is reduced, and the body can be prevented from being too cold. In addition, when the ambient temperature is high, the air volume notch during driving is continued, so the sensory air volume does not change, and it can reduce the feeling of being hot during sleep, making it uncomfortable at bedtime and hiding sleep. Can be suppressed.

  Also, as shown in FIG. 4, the control means 6 operates after the first air flow notch selected by the changeover switch 4 for the first predetermined time, and the temperature measured by the temperature measuring means 5 is the first predetermined temperature. When the temperature is equal to or lower than the temperature measured before the time, the air volume of the operating air volume notch is gradually lowered by one step over the first predetermined time. Thereby, since the change in the air volume that affects the body can be reduced, the burden on the body can be reduced without causing the user to feel uncomfortable.

  In addition, as shown in FIG. 5, the control means 6 determines the temperature measured by the temperature measuring means 5 when the noise caused by the air flow of the blade section 3 when the sleep operation mode is executed exceeds a predetermined noise value. However, even when the temperature measuring means 5 is equal to or lower than the temperature measured before the first predetermined time, or when the temperature measuring means 5 is higher than the temperature measured before the first predetermined time, the air is blown from the blade portion 3. Noise is reduced to a maximum notch lower than a predetermined noise level.

  Specifically, after the air flow notch is selected by the changeover switch 4 and the seventh airflow notch is selected by the changeover switch 4 and the sleep operation mode is executed, the rotation speed of the motor unit 2 is controlled by the control means 6. The motor unit 2 is driven at the rotation speed of the seventh air volume notch. The seventh air volume notch is operated for a first predetermined time, for example, 30 minutes.

  At this time, the air volume is lowered to a maximum notch temperature lower than a predetermined noise value, for example, a fourth air volume notch. The predetermined noise value may be 30 dB which is said to be quiet due to room noise. As a result, noise due to airflow at the time of going to bed is reduced, so that it is possible to create a noise environment that does not disturb sleep while ensuring an air volume that does not feel uncomfortable at the time of going to bed.

  FIG. 6 is a conceptual diagram showing the minimum air volume notch when determining the minimum air volume notch after operation in the sleep operation mode according to the room temperature of the electric fan.

  After operating in the sleep operation mode, the control means 6 does not lower the airflow notch that is determined according to the room temperature to a lower level.

  Specifically, as an example, as shown in FIG. 6, when the temperature outside the main body measured by the temperature measuring means 5 is 28 ° C. when using the sleep operation mode, the minimum airflow notch during the use of the sleep operation mode is In the case of 33 ° C., the minimum airflow notch while using the sleep operation mode is set to 3.

  In this way, when using sleep mode, determining the minimum air volume according to the room temperature changes the lower limit of the air volume notch according to the room temperature that changes depending on the day, such as tropical nights and cool nights. Regardless of this, it is possible to create an environment in which sleep is not disturbed while ensuring an air volume that does not feel uncomfortable at bedtime.

(Embodiment 2)
FIG. 7 is a conceptual diagram showing a minimum airflow notch in the second embodiment of the present invention when a fan user determines whether the airflow is hot or cold and determines the minimum airflow notch after operation in the sleep operation mode. is there. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The difference from the first embodiment is that the control means 6 is configured such that the temperature outside the main body measured by the temperature measurement means 5 when the sleep operation mode is set and the air volume notch selected by the user with the changeover switch 4 when the sleep operation mode is set. This is the point that determines the minimum airflow notch in the sleep operation mode.

  Specifically, it is estimated that a user who sets a large air volume notch is hotter than a user who sets a small air volume notch even at the same room temperature.

  As an example, as shown in FIG. 7, when the temperature outside the main body measured by the temperature measuring means 5 is 29 ° C., if the user uses the sleep mode with the seventh air volume notch, the minimum air volume notch is 4 Thus, when the user uses the sleep operation mode with the sixth airflow notch, the minimum airflow notch is 3.

  Further, even when the same air volume notch is set, it is estimated that a user in an environment with a high room temperature is colder than a user in an environment with a low room temperature. Based on the above estimation, a minimum airflow notch in the sleep operation mode is determined.

  As an example, as shown in FIG. 7, when the user uses the sleep operation mode with the seventh airflow notch, and the temperature outside the main body measured by the temperature measuring means 5 is 29 ° C., the minimum airflow The notch is 4, and when the temperature outside the main body measured by the temperature measuring means 5 is 31 ° C., the minimum air volume notch is 3.

  In this way, when the sleep operation mode is set, it is estimated that the user is hot or cold from the room temperature and the air volume notch set by the user, and the lower limit value of the air volume notch is set, so that it does not feel uncomfortable at bedtime While ensuring air volume, you can create an environment that does not disturb sleep.

(Embodiment 3)
FIG. 8 is a diagram showing details of the electric fan according to Embodiment 3 of the present invention. FIG. 9 is a conceptual diagram showing an air blowing pattern that is not lowered below the air volume notch determined by the fan user in Embodiment 3 of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The difference from the first embodiment is that a minimum air volume setting switch 8 is provided. When the user reaches the preset air volume notch by the minimum air volume setting switch 8 while operating in the sleep operation mode, the control means 6 is the main body measured by the subsequent temperature measuring means 5. The air volume notch is not lowered below the user's set air volume notch regardless of the outside temperature.

  Specifically, as shown in FIGS. 8 and 9, the user selects the second air volume notch with the minimum air volume setting switch 8, selects the fifth air volume notch with the changeover switch 4, and sleeps. When the mode is executed, the number of rotations of the motor unit 2 is controlled by the control means 6, and the motor unit 2 is driven at the number of rotations of the fifth air volume notch. The fifth air volume notch is operated for a first predetermined time, for example, 30 minutes.

  Then, the temperature measuring means 5 measures the temperature outside the main body every predetermined time, and repeatedly determines whether the air volume notch is lowered or continued accordingly. When the second air volume notch is reached, the air volume notch is lowered thereafter. Do not.

  In this way, when the sleep mode is used, the user can set the minimum airflow notch so that the airflow is low for the user, for example, when the user is hot or when the user is far from the fan. It is possible to create an environment in which sleep is not disturbed while ensuring an air volume that does not feel uncomfortable at bedtime.

  The fan according to the present invention is useful as a fan or the like used at bedtime because it enables the air volume to be reduced with the passage of time while automatically determining the change in the air volume according to the temperature change of the ambient temperature. .

DESCRIPTION OF SYMBOLS 1 Main body 2 Motor part 3 Blade | wing part 4 Changeover switch 5 Temperature measurement means 6 Control means 7 Guard part 8 Minimum air volume setting switch

Claims (6)

A main body, a motor portion provided in the main body, a blade portion rotated by the motor, a changeover switch for setting a plurality of air volume notches with different air volumes, a temperature measuring means for measuring a temperature outside the main body, The control means is configured to control the number of rotations of the motor unit. When the air flow notch is selected by the changeover switch and the sleep operation mode is executed, the control means performs the first airflow notch selected by the changeover switch. If the temperature measured by the temperature measuring means is equal to or lower than the temperature measured by the temperature measuring means before the first predetermined time after the operation for a predetermined time, the air volume notch during operation is lowered by one step, and the temperature measurement is performed. If the temperature measured by the means is greater than the temperature measured by the temperature measuring means before the first predetermined time, the air volume notch during operation is continued and these controls are performed. Fan, characterized in that the return Ri. When the temperature measured by the temperature measuring means is equal to or lower than the temperature measured by the temperature measuring means before the first predetermined time after operating for a first predetermined time at the airflow notch selected by the changeover switch. The electric fan according to claim 1, wherein the air volume of the air volume notch during operation is gradually lowered by one step over the first predetermined time. When the noise caused by the air blowing of the blade portion when the sleep operation mode is executed exceeds a predetermined noise value, the control means measures the temperature measured by the temperature measuring means. Even when the temperature is equal to or lower than a temperature measured before a predetermined time of 1, and when the temperature measuring unit is larger than the temperature measured before the first predetermined time, the noise caused by blowing air from the blade portion is more than a predetermined noise value. The electric fan according to claim 1 or 2, wherein the electric fan is lowered to a lower maximum notch. The said control means, after operating in the said sleep operation mode, when the minimum air volume notch determined according to room temperature is reached, it does not lower to the stage below it. The electric fan in any one of 3. When the control means reaches the minimum airflow notch determined according to the room temperature when the sleep operation mode is set and the user's set airflow notch when the sleep operation mode is set after operating in the sleep operation mode. The electric fan according to any one of claims 1 to 3, wherein the electric fan is not lowered to a lower stage. 4. The control device according to claim 1, wherein after the operation in the sleep operation mode, when the minimum airflow notch determined by the user is reached, the control means does not lower the lower airflow level. 5. Fan of crab.

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