JPH05253014A - Hair drier - Google Patents

Abstract

PURPOSE:To improve operability in combing and drying by changing over warm and cool blasts with the motion of a drier in place of a manual switch. CONSTITUTION:When a power terminal 1 is connected to a commercial power source AC and a power switch 2 is closed, a control circuit 3 monitors the condition of a drier on the basis of the output of a detector 12 to judge whether or not the drier carried out a predetermined operation distinguished from that in the usual use. While 'usual use condition' is judged if the output from the detector 12 per unit time (3 seconds for example) falls within the number of times T of judgment (5 times for example) and 'change-over operation condition' is judged if the outputs exceed the number of times T, the unit time and the number of times of judgment are properly set in consideration of the shape of the drier and the convenience of use for a user. When 'change-over operation condition' (change-over) is judged, the control circuit 3 changes properly the rate of electrification of a heater 6 to hold such condition thereafter until 'change-over judgment' is carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair dryer capable of selecting hot air and cold air and adjusting the air volume by shaking the dryer.

[0002]

2. Description of the Related Art A conventional hair dryer is disclosed in, for example, Japanese Patent Laid-Open No.
As shown in Japanese Patent Publication No. 7-89806, the configuration is such that selection of hot air and cold air and setting of air volume and the like are performed by operating a manual switch provided in the grip portion.

However, in the conventional configuration, when the above setting operation is performed, it is necessary to move the dryer main body to a position where the switch can be easily operated in order to confirm the position of the switch. Will be suspended. That is, there is a problem that operability is poor.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to improve the operability in selecting hot air and cold air and setting the air volume.

[0005]

According to a first aspect of the present invention, in a hair dryer having a heater and a blower, a detecting means for detecting the movement of the dryer and the dryer performs a predetermined movement based on the output of the detecting means. In this case, a configuration is provided that includes a switching determination unit that determines switching and a heating control unit that alternately switches the heating device between a heating state and a heating stop state each time the switching determination is performed by the switching determination unit. is there.

A second aspect of the present invention is, in a hair dryer having a heater and an air blower, a detecting means for detecting the movement of the dryer, and a switching decision when the dryer makes a predetermined movement based on the output of the detecting means. Switching determination means to perform,
A heating control means for sequentially switching the heating state of the heater is provided each time the switching determination means makes a switching determination.

According to a third aspect of the present invention, in a hair dryer equipped with a heater and a blower, a detecting means for detecting the movement of the dryer, and a switch decision when the dryer makes a predetermined movement based on the output of the detecting means. Switching determination means to perform,
The blower control means is provided for sequentially switching the blower state of the blower each time the switch determination means makes a switch determination.

[0008]

According to the first aspect of the present invention, when the dryer is switched from warm air to cold air or from cold air to warm air while the dryer is in use, when the user puts the dryer in a predetermined state, the movement of the dryer is detected by the detecting means. Then, the switching determination means determines whether or not the dryer has performed a predetermined movement based on the output. When the switching determination means determines the switching, the heating control means switches the heater from the heating state to the heating stop state, changes the hot air to the cold air, and holds the state. After that, when the determination of switching is made again, the heating control means switches the heating device from the heating stopped state to the heating state, changes the state of the cold air to the hot air, and holds the state. That is, switching from warm air to cold air or from cold air to warm air can be performed based on the movement of the dryer by replacing the conventional manual switch.

According to the second invention, when the temperature of the hot air is switched to the high temperature side or the low temperature side while the dryer is used,
When the user sets the dryer in a predetermined state, the detection means detects the movement of the dryer, and the switching determination means determines whether or not the dryer has performed the predetermined movement based on the output thereof. When the switching determination means determines the switching, the heating control means switches the heating state of the heater to the high heating state side or the low heating state side and holds the state. After that, when the determination of switching is made again, the heating control means switches the heating state of the heater to the high heating state side or the low heating state side and holds the state. That is, the heating state of the heater can be switched based on the movement of the dryer instead of the conventional manual switch.

According to the third aspect of the present invention, when the air volume of the warm air is switched to the large side or the small side while the dryer is in use, when the user puts the dryer in a predetermined state, the movement of the dryer is detected by the detecting means. The switching determination means determines whether or not the dryer has performed a predetermined movement based on the detection result.
When the switching determination means determines the switching, the air volume control means switches the air blowing state of the blower to the high air blowing state side or the low air blowing state side, and holds the state. Then, when the determination of switching is made again, the air volume control means switches the air blowing state of the blower to the high air blowing state side or the low air blowing state side, and holds that state. That is, the switching of the blower state of the blower can be performed based on the movement of the dryer instead of the conventional manual switch.

[0011]

1 is a circuit diagram showing an embodiment of a hair dryer of the present invention. In this figure, power terminals (1) (1)
Is connected to a commercial power source (AC) and the power switch (2) is closed to supply power to the hair dryer. Commercial power (AC) is supplied to the control circuit (3), the heater circuit (4), and the motor circuit (5). The control circuit (3) is a micro computer which stores a predetermined program in advance,
It is equipped with a power supply circuit for supplying the operating power supply of this micro computer.

The heater circuit (4) comprises a heater (6) which constitutes a heater and an energization controller (7) which varies the energization rate of the heater (6), which are connected in series. The motor circuit (5) that constitutes the blower has a full-wave rectifier (9), a step-down resistor (10), and a rotation speed regulator (11) connected in series in order to rotate a fan attached to the rotation shaft of the motor (8). The full wave rectifier (9) is connected to the motor (8). The rotation speed adjuster (11) is composed of a semiconductor switching element such as a triac for arbitrarily setting the duty ratio of the motor circuit (5), but a voltage switcher for varying the drive voltage of the motor (8), etc. You may comprise. And a fan and heater (6) attached to the motor (8)
Is attached to a predetermined position of the hair dryer so as to take in air from the intake port, heat the air, and discharge hot air from the air outlet.

The hair dryer is equipped with a detector (12) for detecting its movement. This detector is
For example, a ball is movably housed in a case, and a sensor for detecting the movement of the ball according to the movement of the dryer is used. This sensor may use a sensor which detects a ball optically, magnetically or electrically and whose output changes according to the movement of the ball. Then, the output of the detector (12) is supplied to the control circuit (3). The control circuit (3) determines, for example, the number of times the dryer shakes per unit time based on the presence / absence of the output, determines the dryer state according to the number of times, and based on the result of the determination, the energization controller (7) is used. The heater (6) is controlled to vary the energization rate, and the rotation speed adjuster (11) is used to variably control the rotation speed of the motor (8).

In the above structure, the power supply terminal (1)
When (1) is connected to the commercial power source (AC) and the power switch (2) is closed, the control circuit (3) monitors the condition of the dryer based on the output of the detector (12), and the dryer is normally used. It is determined whether or not a predetermined movement distinguishable from the state has been performed. For example, when the output of the detector (12) per unit time (for example, 3 seconds) is within the determination number T (for example, 5 times) as shown in FIG. 2, the determination is “normal use state”. When the number of times T is exceeded, it is performed as in the "switching operation state", but the unit time or the number of determinations may be appropriately set in consideration of the shape of the dryer and the usability of the user. Then, when the control circuit (3) determines the above-mentioned "switching operation state" (switching), it appropriately changes the energization rate of the heater (6) or the rotation speed of the motor (8), and then performs the "switching determination". Hold that state until you do.

Next, several examples of heater control modes executed by the control circuit (3) based on the above "switching determination" will be described with reference to FIG. 3, but here it is assumed that the air flow rate is constant.

First, FIG. A shows an example of the timing of the "switching determination" described in FIG. In FIG. 9B, energization (for example, 900 W) and de-energization of the heater (6) are alternately performed every "switching determination", and hot air and cold air can be selected alternately.

FIG. 6C shows the heater (6) for each "switching determination".
The heat generation amount is alternately switched to 900 W and 500 W, for example, and hot air of high temperature and low temperature can be selected alternately.

FIG. D shows the heater (6) for each "switching determination".
The heat generation amount is sequentially switched to, for example, 500 W, 900 W, 1200 W, and low temperature, high temperature, and hot air of the highest temperature can be sequentially selected.

FIG. 6E shows the heater (6) for each "switching determination".
The heat value of 0W, 500W, 900W, 1200
It is switched in sequence like W, with cold air, low temperature, high temperature,
The hottest hot air can be sequentially selected.

FIG. F shows the heater (6) for each "switching determination".
The heat value of 0W, 500W, 900W, 1200
Switching sequentially like W, then 900W, 500W,
The switching is performed in the order of 0 W, and when the maximum heat generation amount is reached, the heat generation amount is sequentially reduced.

In the description of the heater control form by the above "switching determination", the air blowing amount is described as being constant, but the rotating speed of the motor (8) can be adjusted by the "switching determination" to change the air blowing amount. Hereinafter, an example of the control mode of the motor based on the "switching determination" will be described with reference to FIG. still,
The same figure A shows the same "switching determination" timing as FIG. 3A.

In each of FIGS. 3B and 3C, the number of revolutions of the motor (8) is, for example, 6000 times / minute and 8000 times / minute for each "switching determination".
The air flow rate is switched alternately like a minute, so that low speed and high speed air volumes can be selected alternately. In this case, if the amount of heat generated by the heater (6) is constantly set to a constant W number, the amount of warm air can be alternately selected from weak wind and strong wind. Further, if the heater (6) is de-energized, the amount of cold air can be alternately selected from weak air and strong air. Further, if used in combination with the alternating heat generation amount of the heaters shown in, for example, B and C of FIG. 3, the air flow amount can be changed in synchronization with the change of the heat generation amount.

FIG. 4D shows the motor (8) for each "switching determination".
For example, the rotation speed of 6000 times / minute and 8000 times / minute and 1
The air flow rate is switched sequentially such as 0000 / min, so that low speed, high speed, and maximum air flow can be sequentially selected. In this case, if the amount of heat generated by the heater (6) is constantly set to a constant W number, the amount of warm air can be sequentially selected from weak wind, strong wind, and strongest wind. Further, by stopping the energization of the heater (6), it is possible to sequentially select the cold air volume as weak wind, strong wind, and strongest wind. Further, when used in combination with the sequential switching of the heating value of the heater shown in D of FIG. 3, for example, the air flow rate can be switched in synchronization with the switching of the heating value.

In FIG. 6E, the number of rotations of the motor is, for example, 6000 rotations / minute, 8000 rotations / minute, and 1000 for each "switch determination".
The air flow rate is switched sequentially such as 0 / minute so that the low speed, the high speed, and the highest speed air volume can be sequentially selected. However, when the predetermined air volume, in this example, the low speed air volume, Even if "," the air volume is continuously held a predetermined number of times. In this case, if the amount of heat generated by the heater (6) is constantly set to a constant W number, the amount of warm air can be sequentially selected from weak wind, strong wind, and strongest wind. Further, by stopping the energization of the heater (6), it is possible to sequentially select the cold air volume as weak wind, strong wind, and strongest wind. Furthermore, if it is used together with the sequential switching of the heat generation amount of the heater shown in E of FIG. 3, it is possible to generate the cold air and the hot air of the same air volume.

In FIG. 5F, the number of rotations of the motor is, for example, 6000 times / minute, 8000 times / minute, and 1000 for each "switching determination".
After switching to 0 / minute, it is switched to decreasing gradually, and it is possible to sequentially select low speed, high speed, and maximum speed, but like FIG. In the case of a predetermined air volume, in this example, a low air volume, the air volume is continuously held even if the "switch determination" is performed next. In this case, if the calorific value of the heater (6) is constantly set to a constant W number, the warm air volume can be selected sequentially from weak wind, strong wind, and strongest wind, and vice versa. If the heater (6) is de-energized, the cold air volume can be sequentially selected in the same manner as the warm air. Further, if used in combination with the sequential switching of the heating value of the heater shown in E of FIG. 3, for example,
It is possible to generate the same amount of cold air and warm air.

The heater control modes shown in FIGS. 3B to 3F and the motor control modes shown in FIGS. 4B to 4F can be combined in various combinations other than the above combinations.

In the above embodiment, the "switching determination" is performed based on the frequency of the runout of the dryer, but the present invention is not limited to this, and the movement of the dryer may be different from the normal use state. The determination can be made separately. For example, the size of the shake of the dryer may be detected by a pressure sensor or the like, and the "switch determination" may be performed when the user intentionally shakes the shake with a size different from the normal shake. Also, the dryer is usually used by shaking the main body to the left or right, but it is rarely used by moving the main body backward.
The pressure sensor etc. detects that the dryer is shaken backward (for example, the direction opposite to the blowing direction of the blower),
The “switch determination” may be performed when the user intentionally shakes in a direction different from the normal swing.

[0028]

As described above, the first invention switches between hot air and cold air, and the second invention switches the heating amount of the heater.
In the third invention, since the air volume is switched by the movement of the dryer instead of the conventional manual switch, the dryer main body is operated to confirm the position of the switch as in the conventional case. Since it is not necessary to move the hair to an easy position, the operability when styling and drying hair can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a time chart diagram illustrating “switch determination” in the embodiment.

FIG. 3 is a time chart diagram for explaining an example of a heater control mode in the embodiment.

FIG. 4 is a time chart diagram for explaining an example of a motor control mode in the embodiment.

[Explanation of symbols]

 3 Control circuit 6 Heater 8 Motor 12 Detector

Claims (3)

[Claims] 1. A hair dryer having a heater and a blower, a detection means for detecting movement of the dryer, and a switching determination means for determining switching when the dryer makes a predetermined movement based on the output of the detection means. And a heating control means for alternately switching the heating device between a heating state and a heating stop state each time the switching determination is performed by the switching determination means. 2. A hair dryer having a heater and a blower, a detection means for detecting movement of the dryer, and a switching determination means for performing switching determination when the dryer makes a predetermined movement based on the output of the detection means. And a heating control means for sequentially switching the heating state of the heater each time the switching determination is performed by the switching determination means. 3. A hair dryer having a heater and an air blower, a detection means for detecting movement of the dryer, and a switching determination means for performing switching determination when the dryer makes a predetermined movement based on the output of the detection means. And a blower control means for sequentially switching the blower state of the blower each time the switching determination means makes a switching determination.