CN105962607B

CN105962607B - Hair care device

Info

Publication number: CN105962607B
Application number: CN201610074592.0A
Authority: CN
Inventors: 宫田博光; 武智充; 上林真由香; 柴武志
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2015-03-13
Filing date: 2016-02-02
Publication date: 2021-07-23
Anticipated expiration: 2036-02-02
Also published as: JP2016168256A; JP6447869B2; CN105962607A

Abstract

The invention provides a hair care device. A hair dryer (1) as a hair care device is provided with: a charged particle supply unit (60) that generates charged particles to be supplied to an object; a potential supply unit (70) that supplies a potential to the object; and a control unit (80) that controls the potential supply unit (70) so that the potential varies. The control unit (80) is configured to adjust the potential so as to execute a plurality of modes having different effects. According to this aspect, a hair care device can be realized that can suppress a decrease in the amount of moisture adhering to hair even when used for a long period of time.

Description

Hair care device

Technical Field

The present invention relates to a hair care (Haircare) apparatus for supplying charged particles to hair.

Background

Conventionally, a hair care device is known which supplies charged particles to hair to wet the hair. Jp 2003-059622 a discloses a hair care device including a charged particle supply unit for supplying charged particles and a potential supply unit for supplying a potential to a human body (Dryer).

According to this conventional technique, when the charged particle supply unit emits Negative ions (Negative ions), the potential supply unit applies a positive voltage to the human body. When the charged particle supply unit emits Positive ions (Positive ions), the potential supply unit applies a negative voltage to the human body.

Thereby, the charged particles are easily attached to the hair. Since the charged particles are combined with moisture in the atmosphere, when the charged particles are attached to hair, the moisture combined with the charged particles is also attached to the hair, thereby wetting the hair.

Disclosure of Invention

Since the human body has a capacitance component, the amount of charged particles adhering to the hair increases as the supply time of the charged particles from the charged particle supply unit increases. Since the charge supplied from the charged particle supplying unit has the same polarity as the charged particles attached to the hair, the charged particles supplied from the charged particle supplying unit are less likely to be attached to the hair as the amount of the charged particles attached to the hair increases.

That is, as the hair care device is used for a longer period of time, the amount of moisture newly adhering to the hair decreases, and when the hair is wetted to a certain level, it is difficult to obtain an effect equal to or higher than the certain level.

In order to solve the above conventional problems, a hair care device according to an aspect of the present invention includes: a charged particle supply unit that generates charged particles to be supplied to an object; a potential supply unit that supplies a potential to an object; and a control unit that controls the potential supply unit so that the potential varies.

According to this aspect, a hair care device can be realized that can suppress a decrease in the amount of moisture adhering to hair even when used for a long period of time.

Drawings

Fig. 1 is a perspective view of a blower according to an embodiment.

Figure 2 is a side view of a blower according to an embodiment.

Fig. 3 is a cross-sectional view taken along line 3-3 of fig. 1.

Fig. 4 is a side view showing an internal structure of a blower according to an embodiment.

Fig. 5 is a block diagram showing a configuration of a potential supply circuit included in the potential supply unit shown in fig. 3.

Fig. 6 is a waveform diagram showing the variation of the potential of the human body in the first mode (mode) according to the embodiment.

Fig. 7 is a waveform diagram showing an operation in the first mode.

Fig. 8 is a waveform diagram showing an operation in the first mode.

Fig. 9 is a waveform diagram showing the variation of the potential of the hair in the second mode according to the embodiment.

Fig. 10 is a waveform diagram showing an operation in the second mode.

Fig. 11 is a graph showing the relationship between the use time and the potential of hair.

Fig. 12 is a waveform diagram showing the variation in potential of the human body in the first mode according to the modification.

Fig. 13 is a waveform diagram showing an operation in the first mode according to the modification.

Fig. 14 is a waveform diagram showing a variation in potential supplied to a human body in the first mode according to the modification.

Fig. 15 is a waveform diagram showing a variation in potential supplied to a human body in the first mode according to the modification.

Fig. 16 is a waveform diagram showing a variation in potential supplied to a human body in the second mode according to the modification.

Fig. 17 is a waveform diagram showing a variation in potential supplied to a human body in the second mode according to the modification.

Fig. 18 is a waveform diagram showing a variation in potential supplied to a human body in the third mode according to the modification.

Fig. 19 is a waveform diagram showing a variation in potential supplied to a human body in the fourth mode according to the modification.

Fig. 20 is a waveform diagram showing a variation in potential supplied to a human body in the fifth mode according to the modification.

Fig. 21 is a side view of a Hair iron (Hair iron) as another application example of the present invention.

Fig. 22 is a side view of a Hair comb (Hair brush) as another application example of the present invention.

Detailed Description

[ 1 ] A hair care device according to one embodiment of the present invention includes: a charged particle supply unit that generates charged particles to be supplied to an object; a potential supply unit that supplies a potential to an object; and a control unit that controls the potential supply unit so that the potential varies.

[ 2 ] according to a hair care device of an embodiment of the present invention, a control unit is configured to adjust a potential to be supplied to a human body so as to execute a plurality of modes having different effects.

According to this aspect, the potential to be supplied to the human body is set according to the mode. Therefore, the degree of attachment of the charged corpuscle water to the hair, that is, the amount of the charged corpuscle and water attached to the hair, is adjusted according to the pattern. The relationship between the amount of adhesion of the charged fine particulate water suitable for each mode and the potential corresponding to the amount of adhesion can be confirmed by a preliminary test or the like.

[ 3 ] according to a hair care device of an embodiment of the present invention, a potential supply section includes: a Switching element capable of bidirectional conduction; a capacitor connected in series with the switching element; and a potential supply plate for supplying the potential of one terminal of the capacitor to the object.

The control unit is configured to turn On (On) the switching element after a predetermined time has elapsed from a zero-cross point of an alternating-current voltage of the commercial power supply in order to set the potential to a predetermined value, and to turn Off (Off) the switching element when a voltage across the capacitor matches the alternating-current voltage of the commercial power supply and then reaches the predetermined value. With such a simple structure, the device can be miniaturized and the manufacturing cost can be reduced.

[ 4 ] according to a hair care device of one embodiment of the present invention, the control unit is configured to turn on the switching element so that the voltage across the capacitor is equal to the alternating-current voltage of the commercial power supply. With such a simple structure, the device can be miniaturized and the manufacturing cost can be reduced.

[ 5 ] according to a hair care device according to one embodiment of the present invention, a charged particle supply section discharges charged fine particulate water containing charged particles.

Generally, charged fine particulate water contains more moisture than positive ions or negative ions bound to moisture. Therefore, when the charged corpuscle water adheres to the hair, more water adheres to the hair. As a result, the hair can be moisturized.

(embodiment mode)

Hereinafter, a hair dryer 1 as an example of a hair care device of the present invention will be described with reference to the drawings. In the following drawings, the same or equivalent portions are denoted by the same reference numerals, and redundant description may be omitted.

Fig. 1 is a perspective view of a blower 1 according to the present embodiment. Figure 2 is a side view of the hair dryer 1. Fig. 3 is a cross-sectional view taken along line 3-3 of fig. 1. Fig. 4 is a side view showing the internal configuration of the hair dryer 1. The hair dryer 1 according to the present embodiment has a function of supplying charged particles and a voltage to a human body 100 (see fig. 5).

As shown in fig. 1, the hair dryer 1 includes a cylindrical housing 10, a Grip 21 to be gripped by a user when using the hair dryer 1, and a connecting portion 22 that rotatably connects the housing 10 and the Grip 21. The blower 1 further includes a Cord (Cord)23 connected to the commercial power supply 2 (see fig. 5) at an end of the handle 21.

The blower 1 further includes a plurality of operation units for switching the operation of the blower 1. The plurality of operation units include an operation unit 31 for switching the operation of the hair dryer 1, and an operation button 32 and an operation button 33 for activating a plurality of modes according to the degree of the effect given to the hair as a part of the human body 100 (see fig. 2).

The operation portion 31 is formed on the front surface of the handle 21. When the operation unit 31 is at the lowermost position as shown in fig. 1, the power supply of the hair dryer 1 is turned off. When the operation unit 31 is switched to a position other than the lowermost position, the power of the hair dryer 1 is turned on, and at least one of the air volume and the air temperature supplied to the hair is changed in accordance with the position of the operation unit 31.

As shown in fig. 2, the

operation buttons

32, 33 are arranged on the side of the housing 10. When the power of the hair dryer 1 is turned on, the operation of the

operation buttons

32 and 33 is effected.

As shown in fig. 3, the hair dryer 1 further includes an air intake port 11 formed at one end portion in the longitudinal direction of the casing 10, an air discharge port 12 formed at the other end portion, and a filter 11A provided at the air intake port 11. The filter 11A prevents dust and the like from entering the internal space 10A of the housing 10.

The blower 1 further includes a blowing unit 40 that generates air in the internal space 10A, a heater 50 that heats the air in the internal space 10A, and a control unit 80 (see fig. 4) that controls the electrically connected components.

The blower 40 is disposed on the air inlet 11 side of the internal space 10A, and the heater 50 is disposed on the air outlet 12 side of the internal space 10A. As shown in fig. 4, the control unit 80 is disposed inside the casing 10, and controls the components with electric power supplied from the commercial power supply 2 (see fig. 5).

The blower 40 includes a fan 41, a motor 42 for rotating the fan 41, and a support 43 for supporting the motor 42. When the control unit 80 operates the motor 42 and the heater 50, warm air is discharged from the air discharge port 12. When the control unit 80 operates the motor 42 without operating the heater 50, cool air is discharged from the air outlet 12.

The hair dryer 1 further includes a charged particle supply unit 60 that generates charged particles for supply to hair, and a potential supply unit 70 that supplies a desired potential to a human body 100 (see fig. 5).

The charged particle supply unit 60 is disposed inside the housing 10, and includes a discharge unit 61 having two electrodes, a high voltage generation unit 63 that applies a high voltage to the discharge unit 61, and a discharge port 64 that discharges charged particles. The discharge portion 61 has a needle-like discharge electrode and an opposed electrode (both not shown) opposed to the discharge electrode.

The charged particle supply unit 60 further includes a cooling unit 62 for cooling the discharge electrode. The cooling unit 62 includes a peltier element 62A and a heat sink 62B, the peltier element 62A has a cooling surface and a heat radiation surface, and is disposed so that the cooling surface is in contact with the discharge electrode, and the heat sink 62B is attached to the heat radiation surface of the peltier element 62A. A part of the generated cool air passes through the heat radiating fins 62B and is discharged from the discharge port 64. Thereby, heat is discharged from the charged particle supply unit 60.

When the high voltage generated by the high voltage generating unit 63 is applied between the discharge electrode and the counter electrode by the charged particle supplying unit 60, corona discharge is generated around the discharge electrode. When the discharge electrode is cooled by the peltier element 62A and condensed on the surface of the discharge electrode, the condensed water is electrostatically atomized to generate charged fine particulate water containing charged particles.

The charged corpuscle water is discharged from the discharge port 64 together with a part of the generated cool air. When the high voltage generating section 63 applies a positive voltage to the discharging section 61, the charged corpuscle water with positive charges is generated. When the high voltage generator 63 applies a negative voltage to the discharge unit 61, the negatively charged particulate water is generated.

When the charged particle supply unit 60 supplies the positively charged fine particulate water to the hair, the positive charge is accumulated in the hair. When the charged particle supply unit 60 supplies the negatively charged fine particulate water to the hair, the negative charge is accumulated on the hair. When the charged corpuscle water supplied from the charged particle supply unit 60 adheres to the hair, the hair is wetted by the moisture contained in the charged corpuscle water.

The potential supplying unit 70 includes a potential supplying circuit 71 (see fig. 5) for supplying a potential E to the human body 100, the potential supplying circuit 71 including a plurality of electric elements for generating the potential E, and a potential supplying plate 76 attached to the back surface of the handle 21 and in contact with the human body 100 in use.

Fig. 5 is a block diagram showing the configuration of the potential supply circuit 71.

As shown in fig. 5, the potential supply circuit 71 includes a switching element 72 capable of bidirectional conduction, a Capacitor (Capacitor)73 connected in series with the switching element 72, and a plurality of resistors.

The switching element 72 includes a Photo Metal Oxide Semiconductor (MOS) relay, and is controlled by a control unit 80 (see fig. 4). The plurality of resistors include a resistor 74 disposed between the commercial power source 2 and the switching element 72, and a resistor 75 disposed between the capacitor 73 and the potential supply plate 76.

The control unit 80 has a zero-cross detection circuit (not shown) for detecting a zero-cross point of the ac voltage of the commercial power supply 2, and performs the first control and the second control.

In the case of the first control, the control unit 80 adjusts the timing of turning on and off the switching element 72 to adjust the magnitude of the electric potential E supplied to the human body 100.

Specifically, the control unit 80 turns on the switching element 72 after a predetermined time has elapsed from a Zero-crossing point detected by a Zero-crossing detection circuit (Zero-crossing detection circuit). When the switching element 72 is turned on, the alternating-current voltage of the commercial power supply 2 is supplied to the capacitor 73, so that the both-end voltage of the capacitor 73 coincides with the alternating-current voltage of the commercial power supply 2. The time until the two voltages coincide is determined by the capacitor 73 and the resistor 74.

When the voltage across capacitor 73 reaches a predetermined value after matching the voltage of commercial power supply 2, control unit 80 turns off switching element 72. The potential of the terminal C on the resistor 75 side of the capacitor 73 at this time is supplied as a potential E to the human body 100 via the resistor 75 and the potential supply plate 76. The above-described operation is repeated in the course of executing the first control.

In the case of the second control, the control unit 80 keeps turning on the switching element 72. In this case, the voltage across capacitor 73 is kept equal to the ac voltage of commercial power supply 2, and the same voltage as the ac voltage of commercial power supply 2 is supplied to potential supply plate 76.

Fig. 5 shows a state in which a Plug (not shown) of the cord 23 (see fig. 1) is inserted into an inlet (not shown) of the commercial power supply 2 so as to be grounded at the point a (hereinafter referred to as a first insertion state).

In the first insertion state, when the switching element 72 is turned on, the voltage across the capacitor 73 is equal to the ac voltage of the commercial power supply 2, and a sinusoidal voltage having substantially the same amplitude centered on the ground potential is supplied to the human body 100 via the potential supply plate 76. Therefore, the average value of the potential E in a certain period of time (for example, 1 second) is equal to the ground potential.

On the other hand, in a state where the plug is inserted into the inlet of the commercial power supply 2 so as to be grounded at the point B (hereinafter referred to as a second insertion state (not shown)), when the switching element 72 is turned on, the potential of the potential supplying plate 76 is the ground potential regardless of the voltage across the capacitor 73.

Therefore, in any of the first insertion state and the second insertion state, the potential of the potential supply portion 70 is the ground potential. By the second control, the electric charge carried by the human body 100 is discharged through the potential applying plate 76.

The control unit 80 (see fig. 4) has a first mode and a second mode in which effects on the human body 100 (see fig. 5) are different from each other. The first mode brings about a Volume up effect in which the Volume of hair becomes high. The second mode brings about a Volume down effect in which the Volume of the hair becomes low. The control unit 80 adjusts the potential E according to the pattern.

Here, the first mode will be described with reference to the drawings. Fig. 6 is a waveform diagram showing the variation of the potential E in the first mode.

As shown in fig. 6, when the operation button 32 (see fig. 2) is pressed at time t1, the control unit 80 starts the first mode and performs the first control to set the potential E to the first voltage. The first voltage is, for example, a positive Peak (Peak) value of the ac voltage from the commercial power supply 2. In the first mode, the charged particle supply unit 60 discharges the negatively charged fine particulate water.

At time t2 after a predetermined time (e.g., 10 seconds) has elapsed from time t1, controller 80 performs the second control to set potential E to a second voltage (e.g., 0V) lower than the first voltage.

At time t3 after a predetermined time (for example, 10 seconds) has elapsed from time t2, controller 80 performs the first control again to set potential E to the first voltage. The control unit 80 executes the first mode by repeating the processing from time t1 to time t3 to periodically vary the potential E.

Fig. 7 is a waveform diagram showing an operation of the switching element 72 for setting the potential E to the first voltage in the first mode. The alternate current voltage of commercial power supply 2 is indicated by a chain line shown in waveform (a) of fig. 7.

As shown in fig. 7, control unit 80 recognizes that the ac voltage of commercial power supply 2 has passed through the zero cross point at time t 1A. The zero-cross point detected at time t1A is the zero-cross point at which the ac voltage of commercial power supply 2 transitions from negative to positive.

At time t2A after a predetermined time has elapsed from time t1A, controller 80 turns on switching element 72. The predetermined time is determined in advance based on the value of the potential E. When the switching element 72 is turned on, the potential E coincides with the ac voltage of the commercial power supply 2.

After the potential E matches the ac voltage of the commercial power supply 2, the control unit 80 turns off the switching element 72 at time t3A when the potential E reaches a predetermined value.

When the switching element 72 is turned off, after time t3A, as shown in fig. 7, the electric charge accumulated in the capacitor 73 is gradually supplied from the potential supply plate 76 to the human body 100, and the potential E gently drops until the switching element 72 is turned on next time.

The control unit 80 repeatedly executes the processing from time t1A to t3A to execute the first control to maintain the potential E at substantially the first voltage.

Fig. 8 is a waveform diagram showing an operation of the switching element 72 for setting the potential E to the second voltage in the first mode. As shown in fig. 8, while the second control is being performed, the control unit 80 keeps turning on the switching element 72. In this case, the potential E is equal to the ac voltage of the commercial power supply 2, and the potential E is set to 0V, which is an average value of the commercial power supply 2.

Thus, the control section 80 executes the second control to set the potential E to 0V in the first mode

Here, the first mode will be described with reference to the drawings. Fig. 9 is a waveform diagram showing the variation of the potential E in the second mode.

As shown in fig. 9, when operation button 33 (see fig. 2) is pressed at time t1, control unit 80 starts execution of the second mode and performs the first control to set electric potential E to the third voltage.

The third voltage is, for example, a negative peak of the ac voltage from the commercial power supply 2. In the second mode, the charged particle supply unit 60 discharges the positively charged fine particulate water.

At time t12 after a predetermined time (e.g., 10 seconds) has elapsed from time t11, controller 80 performs the second control to set potential E to a fourth voltage (e.g., 0V) higher than the third voltage.

At time t13 after a predetermined time (for example, 10 seconds) has elapsed from time t12, controller 80 performs the first control again to set potential E to the third voltage. Thus, the control section continues to execute the second mode.

Fig. 10 is a waveform diagram showing an operation of the switching element 72 for setting the potential E to the third voltage in the second mode. The alternate current voltage of commercial power supply 2 is indicated by a chain line shown in waveform (a) of fig. 10. The control unit 80 performs first control different from the first control in the first mode in order to set the potential E to the third voltage in the second mode.

As shown in fig. 10, control unit 80 recognizes that the ac voltage of commercial power supply 2 has passed through the zero cross point at time t 1B. The zero-cross point detected at time t1B is the zero-cross point when the ac voltage of commercial power supply 2 changes from positive to negative.

At time t2B after a predetermined time has elapsed from time t1B, controller 80 turns on switching element 72. The predetermined time is determined in advance based on the value of the potential E. When switching element 72 is turned on, the voltage across capacitor 73 rises, and potential E matches the ac voltage of commercial power supply 2.

After the potential E matches the ac voltage of the commercial power supply 2, the control unit 80 turns off the switching element 72 at time t3B when the potential E reaches a predetermined value.

When the switching element 72 is turned off, after time t3B, as shown in fig. 10, the electric charge accumulated in the capacitor 73 is gradually discharged from the potential supply plate 76 through the human body 100, and the potential E rises gently until the switching element 72 is turned on next time.

The control unit 80 repeatedly performs the processing from time t1B to t3B to execute the first control to maintain the potential E at substantially the third voltage.

In the second mode, the control unit 80 executes the same second control as described above (see fig. 8) to set the potential E to 0V.

Referring to fig. 11, the operation of the blower 1 according to the present embodiment will be described in comparison with the blower of the comparative example.

The present inventors conducted experiments regarding the relationship between the potential of hair, which is a part of the human body 100, and the time of continuous use (hereinafter referred to as use time) with respect to the hair dryer 1 and the comparative examples.

Fig. 11 is a graph showing the relationship between the use time and the potential of hair. In fig. 11, the solid line indicates the test result of the blower 1, and the chain line indicates the test result of the comparative example.

The study was conducted with the test subjects in the first mode. As a comparative example, a comparative example in which negatively charged fine particulate water is discharged and the potential E is 0V was examined.

According to the comparative example, the negative voltage applied to the hair increases with the use time while the use time of the comparative example is equal to or less than the predetermined time. When the use time exceeds the prescribed time, the change in the potential of the hair becomes gentle. This result gives the following hint: the amount of the charged corpuscle water attached to the hair increases during the use time being equal to or less than the predetermined time, and does not increase much after the use time exceeds the predetermined time.

From the test results, it is found that, according to the comparative example, as the use time becomes longer, the charged fine particulate water is less likely to adhere to the hair, and the moisture contained in the charged fine particulate water is less likely to adhere to the hair. That is, when the hair is wetted to a certain level, it is difficult to obtain an effect of the certain level or more. The same problem is considered to exist also in the case of discharging charged fine particulate water having a positive charge.

On the other hand, according to the present embodiment, when the potential E is the first voltage, the potential of the hair changes in the positive direction, and when the potential E is 0V, the potential of the hair changes in the negative direction. This gives the following hint: when the potential of the hair is changed in a negative direction, the amount of charged corpuscle water attached to the hair increases. In addition, it is considered that when the potential of the hair is changed in the positive direction, the negatively charged fine particulate water is easily attached to the hair.

According to the present embodiment, even if the operation time is long and a large amount of charged corpuscle water is accumulated in the hair, when the control unit 80 changes the potential E, the charged corpuscle water attached to the hair can go to the potential supply unit 70 and be detached from the hair. That is, a margin for accumulating the charged particles newly supplied from the charged particle supply unit 60 is generated in the hair. As a result, it is considered that the charged fine particulate water is continuously attached to the hair even after a long time use.

Even if the charged particles are detached from the hair, the moisture contained in the charged corpuscle water is not detached from the hair, and thus the hair can be kept in a wet state. When the charged corpuscle water further adheres to the hair, the moisture contained in the charged corpuscle water further adheres to the hair. According to the present embodiment, the moisture attached to the hair can be increased in a long-term use. This effect can be obtained also in the second mode as well, not only in the first mode.

According to the present embodiment, the following effects can be obtained.

(1) According to the present embodiment, the relationship between the timing and pattern of on/off of the switching element 72 and the potential supplied to the human body 100 can be confirmed by a preliminary experiment or the like. Thus, an excessive potential is not supplied to the human body 100.

(2) According to the present embodiment, the potential E is set according to the mode. Therefore, the degree of adhesion of the charged corpuscle water to the hair, that is, the amount of the charged corpuscle water adhering to the hair is adjusted according to the pattern. The relationship between the amount of adhesion of the charged fine particulate water suitable for each mode and the potential E corresponding to the amount of adhesion can be confirmed by a preliminary test or the like.

(3) According to the present embodiment, the potential E is set to a predetermined value by controlling the switching element 72. With such a simple structure, the device can be miniaturized and the manufacturing cost can be reduced.

(4) Generally, charged fine particulate water contains more moisture than positive ions or negative ions bound to moisture. Therefore, when the charged fine particulate water adheres to the hair, more water adheres to the hair, and an effect of wetting the hair can be obtained.

(5) In the first mode, the potential E is repeatedly set to the first voltage and 0V. Therefore, the human body 100 is easily charged with positive charges. At this time, since the negatively charged fine particulate water is discharged, the hair is easily negatively charged.

In general, the hair is often finished using a comb while using the hair dryer 1. When hair is dressed using a comb, static electricity is easily generated to generate positive charges on hair in addition to the positive charges supplied from the hair dryer 1.

This positive charge and the negative charge supplied to the hair by the charged corpuscle water cancel each other out, and the positive charge tends to remain on the hair. As a result, the positive charges generated in the hair repel the positive charges of the scalp, which is a part of the human body 100, and the volume increasing effect of increasing the volume of the hair is obtained.

(6) In the second mode, the potential E is repeatedly set to the third voltage and 0V. Therefore, the human body 100 is easily charged with negative charges. At this time, the positively charged fine particulate water is discharged, and thus the hair is easily positively charged.

When hair is dressed using a comb, static electricity is easily generated to generate positive charges on hair in addition to the positive charges on hair due to the charged minute water particles. The positive charges are offset from the negative charges of the human body 100, and thus the positive charges are easily left on the hair. As a result, the positive charges generated in the hair are attracted to the negative charges on the scalp, and the hair volume reducing effect of reducing the volume of the hair can be obtained.

(modification example)

The hair care device according to the present invention can be obtained, for example, in one of the following examples or in a combination of at least two of them.

The first mode according to the first modification may be executed instead of the first mode according to the above embodiment.

Fig. 12 is a waveform diagram showing the variation of the potential E in the first mode according to the first modification.

As shown in fig. 12, at time t21, control unit 80 starts the execution of the first mode and performs the first control to set potential E to the first voltage. The first voltage is, for example, a positive voltage having an absolute value larger than 0V and smaller than the peak value of the ac voltage of the commercial power supply 2.

At time t22 after a predetermined time (for example, a time longer than 10 seconds) has elapsed from time t21, controller 80 performs the second control to set potential E to a second voltage (for example, 0V) lower than the first voltage.

At time t23 after a predetermined time (for example, a time shorter than 10 seconds) has elapsed from time t22, controller 80 sets potential E to the first voltage. The control unit 80 repeatedly performs the processing from time t21 to time t23 to execute the first mode according to the first modification.

Fig. 13 is a waveform diagram showing an operation of the switching element 72 for setting the potential E to the first voltage in the first mode according to the first modification. The alternate current voltage of commercial power supply 2 is indicated by a chain line shown in waveform (a) of fig. 13.

As shown in fig. 13, control unit 80 recognizes that the ac voltage of commercial power supply 2 has passed through the zero cross point at time t 1C. The zero-cross point detected at time t1C is the zero-cross point at which the ac voltage of commercial power supply 2 transitions from negative to positive.

At time t2C after a predetermined time has elapsed from time t1C, controller 80 turns on switching element 72. The predetermined time is determined in advance based on the value of the potential E. When the switching element 72 is turned on, the potential E coincides with the ac voltage of the commercial power supply 2.

After the potential E matches the ac voltage of the commercial power supply 2, the control unit 80 turns off the switching element 72 at time t3C when the potential E reaches a predetermined value.

When the switching element 72 is turned off, after time t3C, as shown in fig. 13, the electric charge accumulated in the capacitor 73 is gradually discharged from the potential supply plate 76 through the human body 100, and the potential E gradually drops until the switching element 72 is turned on next time.

The control unit 80 repeatedly performs the processing from time t1C to t3C to execute the first control to maintain the potential E at substantially the first voltage.

In the above modification, when the ac voltage of the commercial power supply 2 goes from 0V to a positive peak, the switching element 72 is turned on and off. However, the switching element 72 may be turned on and off when the ac voltage of the commercial power supply 2 goes from the positive peak to 0V.

The first mode according to the second modification may be executed instead of the first mode according to the above embodiment.

Fig. 14 is a waveform diagram showing the variation of the potential E in the first mode according to the second modification.

As shown in fig. 14, at time t31, control unit 80 starts execution of the first mode and performs the first control so that potential E is set to the first voltage, which is a positive voltage. The first voltage is, for example, a positive peak value of the ac voltage of the commercial power supply 2.

At time t32 after a predetermined time (for example, 10 seconds) has elapsed from time t31, controller 80 performs the first control to set potential E to the second voltage lower than the first voltage. The second voltage is, for example, a negative peak of the ac voltage of the commercial power supply 2.

At time t33 after a predetermined time (for example, a time shorter than 10 seconds) has elapsed from time t32, controller 80 sets potential E to the first voltage. The control unit 80 repeatedly performs the processing from time t31 to time t33 to execute the first mode according to the second modification.

The first mode according to the third modification may be executed instead of the first mode according to the above-described embodiment.

Fig. 15 is a waveform diagram showing the variation of the potential E in the first mode according to the third modification.

As shown in fig. 15, at time t41, control unit 80 starts execution of the first mode and performs the second control so that potential E is set to a second voltage lower than the first voltage, which is a positive voltage. The first voltage is, for example, a positive peak value of the ac voltage of the commercial power supply 2. The second voltage is, for example, 0V.

At time t42 after a predetermined time (for example, 10 seconds) has elapsed from time t41, controller 80 performs the first control to set potential E to the first voltage. The first voltage is, for example, a positive peak value of the ac voltage of the commercial power supply 2.

When the first mode is continuously executed even after time t42, control unit 80 maintains potential E at the first voltage.

The first mode according to the fourth modification may be executed instead of the first mode according to the above embodiment. In the first mode according to the fourth modification, at time t2 shown in fig. 6, control unit 80 sets potential E to a second voltage that is a positive voltage lower than the first voltage.

The second mode according to the first modification may be executed instead of the second mode according to the above-described embodiment.

Fig. 16 is a waveform diagram showing the variation of the potential E in the second mode according to the first modification.

As shown in fig. 16, at time t51, control unit 80 starts the execution of the second mode and performs the first control to set potential E to the third voltage. The third voltage is, for example, a negative voltage having an absolute value greater than 0V and smaller than the peak value of the ac voltage of the commercial power supply 2.

At time t52 after a predetermined time (for example, a time longer than 10 seconds) has elapsed from time t51, controller 80 performs the second control to set potential E to a fourth voltage (for example, 0V) higher than the third voltage.

At time t53 after a predetermined time (for example, a time shorter than 10 seconds) has elapsed from time t52, controller 80 sets potential E to the third voltage. The controller 80 repeatedly performs the processing from time t51 to time t53 to execute the second mode according to the first modification.

The second mode according to the second modification may be executed instead of the second mode according to the above-described embodiment.

Fig. 17 is a waveform diagram showing the variation of the potential E in the second mode according to the second modification.

As shown in fig. 17, at time t61, control unit 80 starts the execution of the second mode and performs the first control to set potential E to the third voltage. The third voltage is, for example, a negative peak of the ac voltage of the commercial power supply 2.

At time t62 after a predetermined time (for example, 10 seconds) has elapsed from time t61, controller 80 performs the first control to set potential E to the fourth voltage higher than the third voltage. The fourth voltage is, for example, a positive peak value of the ac voltage of the commercial power supply 2.

At time t63 after a predetermined time (for example, a time shorter than 10 seconds) has elapsed from time t62, controller 80 sets potential E to the third voltage. The controller 80 repeatedly performs the processing from time t61 to time t63 to execute the second mode according to the second modification.

The second mode according to the third modification may be executed instead of the second mode according to the above-described embodiment. In the second mode according to the third modification, at time t12 shown in fig. 9, the control unit 80 sets the potential E to a fourth voltage that is a negative voltage higher than the third voltage.

The control unit 80 may include the third mode instead of or in addition to at least one of the first mode and the second mode according to the above embodiment.

Fig. 18 is a waveform diagram showing the variation of the potential E in the third mode.

As shown in fig. 18, at time t71, control unit 80 starts execution of the third mode and sets potential E to the first voltage. The first voltage is, for example, a positive peak value of the ac voltage of the commercial power supply 2. In the third mode, the charged particle supply unit 60 discharges at least one of the positively charged and negatively charged fine particles.

At time t72 after a predetermined time (for example, 10 seconds) has elapsed from time t71, controller 80 performs the first control to set potential E to the second voltage lower than the first voltage. The second voltage is, for example, a negative peak of the ac voltage of the commercial power supply 2.

At time t73 after a predetermined time (for example, 10 seconds) has elapsed from time t72, controller 80 sets potential E to the first voltage. The control unit 80 repeatedly performs the processing from time t71 to time t73 to execute the third pattern.

The control unit 80 may include a fourth mode instead of or in addition to at least one of the first mode and the second mode according to the above embodiment.

Fig. 19 is a waveform diagram showing the variation of the potential E in the fourth mode.

As shown in fig. 19, at time t81, control unit 80 starts the fourth mode and performs the first control to set potential E to the first voltage. The first voltage is, for example, a positive peak value of the ac voltage of the commercial power supply 2. In the fourth mode, the charged particle supply unit 60 discharges at least one of the positively charged and negatively charged fine particles.

At time t82 after a predetermined time (e.g., 10 seconds) has elapsed from time t81, controller 80 performs the second control to set potential E to a second voltage (e.g., 0V) lower than the first voltage.

At time t83 after a predetermined time (for example, 10 seconds) has elapsed from time t82, controller 80 performs the first control to set potential E to the third voltage. The third voltage is, for example, a negative peak of the ac voltage of the commercial power supply 2.

At time t84 after a predetermined time (for example, 10 seconds) has elapsed from time t83, controller 80 performs the second control to set potential E to the second voltage.

At time t85 after a predetermined time (for example, 10 seconds) has elapsed from time t84, controller 80 performs the first control to set potential E to the first voltage. The control unit 80 repeatedly performs the processing from time t81 to time t85 to execute the fourth pattern.

The control unit 80 may include a fifth mode instead of or in addition to at least one of the first mode and the second mode according to the above embodiment.

Fig. 20 is a waveform diagram showing the variation of the potential E in the fifth mode.

As shown in fig. 20, at time t91, control unit 80 starts the execution of the fifth mode and performs the first control to set potential E to the first voltage. The first voltage is, for example, a positive peak value of the ac voltage of the commercial power supply 2. In the fifth mode, the charged particle supply unit 60 discharges at least one of the positively charged and negatively charged fine particles.

At time t92 after a predetermined time (e.g., 10 seconds) has elapsed from time t91, controller 80 performs the second control to set potential E to a second voltage (e.g., 0V) lower than the first voltage.

At time t93 after a predetermined time (for example, 10 seconds) has elapsed from time t92, controller 80 performs the first control to set potential E to the third voltage, which is a negative voltage. The third voltage is, for example, a negative peak of the ac voltage of the commercial power supply 2.

At time t94 after a predetermined time (for example, 10 seconds) has elapsed from time t93, controller 80 performs the second control to set potential E to the second voltage.

At time t95 after a predetermined time (for example, 10 seconds) has elapsed from time t94, controller 80 performs the first control to set potential E to the third voltage.

At time t96 after a predetermined time (for example, 10 seconds) has elapsed from time t95, controller 80 performs the second control to set potential E to the second voltage.

At time t97 after a predetermined time (for example, 10 seconds) has elapsed from time t96, controller 80 performs the first control to set potential E to the first voltage. The control unit 80 repeatedly performs the processing from time t91 to time t97 to execute the fifth pattern.

Since the length, amount, degree of damage, and the like of hair vary from person to person, the ease of charging is considered to vary from user to user. Therefore, the control unit 80 may further include a sensor for detecting information on the charge amount of the human body 100. The control unit 80 sets the potential E in each mode based on the information on the charge amount. That is, a voltage suitable for the user can be supplied to the human body 100.

The control unit 80 may include one or more other modes instead of or in addition to at least one of the first mode and the second mode according to the above embodiment. In the different modes, at least one of the air volume and the temperature of the wind is different.

Instead of the potential supply circuit 71, another potential supply circuit may be provided. The potential supplying circuit includes a first circuit for outputting a first voltage as a positive voltage, a second circuit for outputting a second voltage as an alternating voltage of the commercial power supply 2, a third circuit for outputting a third voltage as a negative voltage, and a switch for connecting any one of these circuits to the potential supplying plate 76.

The switching element 72 may include a photocoupler instead of the photo MOS relay.

Instead of the positively charged fine particulate water and the negatively charged fine particulate water, positive ions as positively charged particles and negative ions as negatively charged particles may be supplied. The ions combine with moisture as they move through the atmosphere. Therefore, the hair can be wetted by the moisture combined with the ions during the movement in the atmosphere.

The hair care device according to the present invention is not limited to the household hair dryer 1 according to the present embodiment, and can be applied to the hair iron 200 shown in fig. 21, the hair comb 300 shown in fig. 22, and the like.

Claims

1. A hair care device is provided with:

a charged particle supply unit that generates charged particles to be supplied to hair of a human body;

a potential supply unit that supplies a potential to the human body; and

a control unit that controls the potential supply unit so that the potential varies,

wherein the potential supply portion has: a switching element capable of bidirectional conduction; a capacitor connected in series with the switching element; and a potential supply plate which supplies the potential of one terminal of the capacitor to the human body, an

The control unit is configured to turn on the switching element after a predetermined time has elapsed from a zero-cross point of an alternating-current voltage of a commercial power supply in order to set the potential to a predetermined value, and to turn off the switching element when a voltage across the capacitor matches a voltage of the commercial power supply and then reaches the predetermined value.

2. A hair care device as set forth in claim 1,

the control unit is configured to adjust the potential to execute a plurality of modes having different effects.

3. A hair care device as set forth in claim 1,

the control unit is configured to turn on the switching element so that a voltage across the capacitor is equal to an ac voltage of the commercial power supply.

4. A hair care device as set forth in claim 1,

the charged particle supply unit discharges charged fine particulate water containing the charged particles.