JP2006198045A - Hair drier for generating negative ions - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To discharge a sufficient amount of negative ions in a wide range in a hair drier for drying hair with hot air and also generating the negative ions. <P>SOLUTION: The hair drier comprises: a housing 3; a fan 5 and a heater 10 for discharging the hot air from the discharge port 1 of the housing 3; a negative ion generator 6 for generating the negative ions; and a conductive surrounding member 7 conducted to the negative ion generator 6 and surrounding the center part of a flow path cross section vertical to the discharge direction of the hot air in a ring shape. At the conductive surrounding member 7, a plurality of pointed end parts 8 for discharging the negative ions to the hot air are arranged. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hair dryer for applying warm air to hair and drying the hair, and more particularly to a hair dryer provided with a negative ion generator.

  Hair dryers that dry hair with warm air and generate negative ions to positively affect the hair are known. This type of hair dryer is configured, for example, by arranging a needle-like ion electrode connected to an ion generator in an air passage in a cylindrical housing provided with a fan and a heater. By applying a high voltage to the ion electrode with an ion generator and generating a discharge from its tip, oxygen and water in the air are negatively ionized, and negative ions are blown to the hair by the air flow sent from the fan be able to. When negative ions are sprayed on hair, hair that is often charged positively can be electrically neutralized, and moisture can be penetrated deep inside the hair to increase the moisture content and have a positive effect on the hair. It is supposed to be possible.

  In such a hair dryer, various ideas for reaching a sufficient amount of negative ions to the hair have been made.

For example, in Japanese Patent Application Laid-Open No. 2003-79421, a hair dryer including a cylindrical main body case that houses a fan and a motor, and an ion passage that guides and transfers ions generated by an ion generator, There has been proposed a structure in which the ion passage is disposed substantially at the center of a blowing grill provided at one end, and an outlet of the ion passage projects from an outer surface of the blowing grill.
This proposal was intended to deliver ions to the hair while wrapping the ions in the center of the main air flow that came out of the air outlet, aiming to eliminate the diffusion and neutralization disappearance of ions in the ventilation path. Is.

Further, for example, in Japanese Patent Application Laid-Open No. 2004-208935, a warm air channel that blows hot air, a cool air channel that is arranged around the hot air channel and blows cool air, and an ion generator that emits negative ions into the cool air channel And hair dryers are proposed.
This proposal aims to make ionic molecules attached to hair remain in the hair without evaporating by attaching them to the hair in a state where the temperature of the ionic molecules and the water molecules contained therein is low and energy is low. It is a thing.
JP 2003-79421 A JP 2004-208935 A

  However, according to any proposal in each of the above publications, when the negative ions reaching the hair are actually measured, the amount of ions and the ion release range are not always sufficient.

  For example, in a hair dryer mounted with the one proposed in the above Japanese Patent Application Laid-Open No. 2003-79421, the amount of ions in the central portion of the air flow to be discharged is relatively large, but the ions are concentrated in the central portion and the periphery thereof. The amount of ions in the air flow was not sufficient.

  Further, for example, in a hair dryer mounted with the one proposed in the above Japanese Patent Application Laid-Open No. 2004-208935, the amount and range of ions are not sufficient.

  Therefore, an object of the present invention is to allow a sufficient amount of negative ions to be released in a wide range in a hair dryer that dries hair with warm air and generates negative ions.

(1) In order to solve the above problems, the hair dryer of the present invention is
A housing;
A fan and a heater for discharging hot air from the discharge port of the housing;
A negative ion generator that generates negative ions;
A conductive enclosing member that conducts to the negative ion generator and surrounds a central portion of a cross section of the flow channel perpendicular to the discharge direction of the hot air in a ring shape,
A plurality of tip portions for releasing negative ions to the warm air are arranged on the conductive enclosing member.

  In order to be able to release a sufficient amount of negative ions over a wide range, it is not sufficient to simply generate a large amount of negative ions. For example, as pointed out in the above-mentioned Japanese Patent Application Laid-Open No. 2003-79421, the negative ions generated may diffuse into the swirling air flow and the distribution density may decrease. Further, for example, as pointed out in the above Japanese Patent Application Laid-Open No. 2004-208935, high-temperature negative ions have high energy and are easily evaporated in the air.

  This inventor performed various trial and error about the arrangement | positioning and shape of the tip part which discharge | releases ion, and the member arrange | positioned around the tip part. As a result, there is provided a conductive surrounding member that surrounds the central portion of the flow path cross section perpendicular to the hot air discharge direction in a ring shape, and the surrounding member has a plurality of tip portions for releasing negative ions into the warm air. It has been found that a sufficient amount of negative ions can be released over a wide range by arranging them.

Here, the conductive enclosing member that surrounds the central portion of the cross section of the flow path in a ring shape is preferably a ring-shaped member, but a plurality of cuts are provided in the middle of the enclosing member as a plurality of members. Also good.
Moreover, although it is desirable to provide the 3 or more point part arrange | positioned at an electroconductive surrounding member, it is not restricted to this.

It is desirable to provide a ground terminal in the vicinity of the conductive surrounding member, and this ground terminal is disposed in the vicinity of the surrounding member without being connected to the surrounding member. By providing such a ground terminal, ions can be discharged more stably.
The conductive enclosing member is preferably provided in the vicinity of the discharge port of the housing, and is preferably provided in the vicinity of the inner peripheral surface of the housing along the inner peripheral surface.

(2) Moreover, the other hair dryer of this invention is
A housing;
A fan and a heater for discharging hot air from the discharge port of the housing;
A negative ion generator that generates negative ions,
A plurality of tip portions that are connected to the negative ion generator and emit negative ions to the hot air are arranged so as to surround a central portion of a flow path cross section perpendicular to the hot air discharge direction from at least three directions. is there.

  In this configuration, there is no need to enclose the ring member as described above. According to the experiment of the present inventor regarding this configuration, the result was not as good as that provided with the enclosing member as described above, but it was confirmed that a sufficient amount of negative ions could be released over a wide range. did it.

It is desirable to provide a ground terminal in the vicinity of the plurality of tip portions, and this ground terminal is disposed in the vicinity of the tip portion without being connected to the tip portion. By providing such a ground terminal, ions can be released more stably.
Further, the plurality of pointed portions are preferably provided in the vicinity of the discharge port of the housing, and are preferably provided in the vicinity of the inner peripheral surface of the housing.

  Thus, according to the present invention, it is possible to release a sufficient amount of negative ions in a wide range in a hair dryer that dries hair with warm air and generates negative ions.

  Next, an exemplary embodiment of the present invention will be described with reference to the drawings.

<1. First Embodiment>
<1-1. Internal configuration and action>
FIG. 1 is an internal perspective view of the hair dryer according to the first embodiment of the present invention as viewed from the side, and is a partially cutaway view. This hair dryer has a cylindrical housing 3 with one end serving as a discharge port 1 and the other end serving as a suction port 2, a motor 4 disposed in the housing 3, a fan 5 fixed to its drive shaft, and negative ion generation. And a heater 6.

  The motor 4 is a DC motor connected to an AC power supply, and rotates the fan 5 in a certain direction. As a result, the fan 5 generates an air flow toward the discharge port 1. The heater 10 supported by the heater plate 11 is a heating wire connected to the same AC power source, generates heat when energized, and heats the air flow by the heat. Hot air is discharged from the discharge port 1 of the housing 3 by the fan 5 and the heater 10. A blower hood (not shown) may be detachably provided at the discharge port 1.

The negative ion generator 6 is also connected to the same AC power source, and generates a high voltage to generate a discharge from the tip 8 of the ion electrode, thereby generating negative ions.
The pointed portion 8 of the present embodiment is characterized by being disposed on the conductive surrounding member 7, and a plurality of the pointed end portions 8 are provided so as to protrude from the surrounding member 7 in the hot air discharge direction.
The enclosing member 7 surrounds the central portion of the flow path cross section perpendicular to the hot air discharge direction in a ring shape, is supported by the heater plate 11, and is disposed near the discharge port 1 of the housing 3. The surrounding member 7 is connected to the negative ion generator 6.

  A ground wire 9 is drawn from the motor 4, and the ground wire 9 extends to the vicinity of the conductive enclosure member 7. The tip of the ground wire 9 serves as a ground terminal, and is disposed in the vicinity of the surrounding member 7 without being connected to the surrounding member 7 or its surrounding members (such as the heater plate 11).

  FIG. 2 is a front view showing a discharge port in the hair dryer according to the first embodiment. Each figure of (A) thru | or (D) has shown the various deformation | transformation in 1st Embodiment, FIG.2 (A) has three pointed parts 8, FIG.2 (B) has four pointed parts 8, FIG. 2C shows an example in which there are five pointed portions 8 and FIG. 2D shows an example in which there are six pointed portions 8. As shown in the figure, the number of the tip portions 8 is preferably three or more, but is not limited thereto, and may be two. As shown in the figure, the intervals between the tip portions 8 are preferably substantially equal, but may not be equal.

2A to 2D, the enclosing member 7 surrounds the central portion of the cross section of the flow path in a ring shape, and in particular, the enclosing member 7 is constituted by a ring-shaped integral member. .
In the example of FIGS. 2A and 2B, the surrounding member 7 has an unbroken ring shape, whereas in the example of FIGS. 2C and 2D, the surrounding member 7 has one cut. The place is formed.
The number of cuts may be plural. In this case, the surrounding member 7 is formed of a plurality of members, and the negative ion generator 6 is connected to each of them.

  The conductive enclosing member 7 is preferably provided in the vicinity of the inner peripheral surface of the housing 3 along the inner peripheral surface.

<1-2. Circuit configuration and operation>
FIG. 3 is a circuit diagram of the hair dryer according to the first embodiment. After a buffer film capacitor C is connected between both terminals to which an AC power supply such as AC100V is connected, the main switch SW1 for power ON / OFF is connected to one terminal, and the other terminal is connected to a short circuit. A thermal fuse FUSE for cutting off the power source is connected. An ion generator ION corresponding to the negative ion generator 6, a DC motor rectifier D1 to be described later, and a heater HR corresponding to the heater 10 are connected in parallel to the AC power supply via the main switch SW1 and the thermal fuse FUSE. Has been.

  The main switch SW1 includes a terminal connected to the ion generator ION and the DC motor rectifier D1 from the AC power supply side terminal (hereinafter referred to as “ION-D1 terminal”) and a terminal connected to the heater HR (hereinafter referred to as “HR terminal”). It has a three-terminal configuration that branches into The main switch SW1 can connect / cut off the AC power source to / from the ion generator ION and the rectifier D1, and the AC power source is connected to the heater HR only when the AC power source is connected to the ion generator ION and the rectifier D1. Can be connected / disconnected. That is, the main switch SW1 is connected to the ion generator ION, the DC motor rectifier D1, and the heater HR (warm air) / only connected to the ion generator ION and the DC motor rectifier D1 ( It functions as a HOT / COOL / OFF switch that switches in three stages (cold air) / a state in which the whole is cut off (OFF).

  The wiring connected to the ION-D1 terminal of the main switch SW1 is further branched to the ion generator ION side and the rectifier D1 side. Among these, the ion branch ION is connected to the wiring branched to the ion generator ION side, and an ion switch SW3 is provided so that only the ion generator can be cut off from the power source. A light emitting diode LED is connected in series with the ion switch SW3 and in parallel with the ion generator ION. Thereby, when the ion generator ION is energized, that is, when the main switch SW1 and the ion switch SW3 are turned on, the light emitting diode LED emits light, and it can be displayed that ions are being generated. In addition, a resistance element R1 and a diode D3 for voltage drop and rectification are connected in series with the light emitting diode LED.

  The wiring branched from the ION-D1 terminal of the main switch SW1 to the ion generator side and branched to the DC motor rectifier D1 side is connected to the input terminal (AC terminal) of the rectifier D1 via the voltage drop resistance element MR. ). The rectifier D1 is a bridge circuit to obtain good rectification, and a DC motor M corresponding to the motor 4 is connected between its output terminals. A ground wire 9 is drawn out to a terminal of the DC motor M (an output terminal of the rectifier D1) through a conductive material including a resistor R2. In particular, it is desirable to pull out the ground wire 9 from the negative terminal of the DC motor as shown.

  The wiring branched to the heater HR side by the HR terminal of the main switch SW1 is directly connected to one terminal of the heater HR. A thermostat TH is connected in series with the heater HR, and power supply to the heater HR is cut off during a period in which the heater exceeds a certain temperature.

  The other input terminal (AC terminal) of the DC motor rectifier D1 and the other terminal of the heater HR are made common, and a selection switch SW2 is connected to the power supply side from the junction. A diode D2 is connected in parallel to the selection switch SW2. Therefore, when the selection switch SW2 is in a conductive state, a large current is supplied to the DC motor rectifier D1 and the heater HR. On the other hand, when the selection switch SW2 is in the cut-off state, power is supplied to the DC motor rectifier D1 and the heater HR only through the diode D2, so that the power is supplied to the DC motor rectifier D1 and the heater HR. Current is reduced. Therefore, the outputs of the DC motor rectifier D1 and the heater HR can be increased or decreased by opening and closing the selection switch SW2.

  The AC power supply side terminal of the selection switch SW2 and the other terminal of the ion generator ION (on the side opposite to the main switch SW1) are made common and further connected to the temperature fuse FUSE on the AC power supply side.

  Although it is conceivable to connect the ground wire 9 to a wiring portion other than the motor, it is not preferable because an AC voltage is applied to the other wiring portions. Although a hand-held hair dryer can be grounded to the human body, it is not preferable because it may cause an electric shock. On the other hand, since the terminal of the DC motor M passes from the AC power source through the rectifier D1 (further, the resistance element MR in this embodiment), the absolute value of the potential is low and stable. For example, when the resistance element MR is set to 100 to 200Ω, the terminal voltage of the DC motor can be set to about DC 20 to 35V. The potential of the motor terminal can be substantially ignored as compared with the potential of the ion electrode to which a high voltage is applied. Therefore, it is useful to pull out the ground wire 9 from the terminal of the DC motor M.

  It is desirable to interpose a resistor R2 between the ground terminal of the ground wire 9 and the terminal of the DC motor M. Thereby, a sudden current leakage from one to the other can be avoided.

<1-3. Effect of First Embodiment>
According to the first embodiment described above, the conductive surrounding member 7 surrounding the central portion of the flow path cross section perpendicular to the hot air discharge direction is provided in a ring shape. By disposing a plurality of tip portions 8 that emit ions, a sufficient amount of negative ions can be released over a wide range.
The reason why such an effect is obtained is not necessarily clear, but in one case, negative ions are released from the peripheral portion of the flow path cross section perpendicular to the hot air discharge direction. It is conceivable that the ions are cooled appropriately.

  In addition, the provision of the conductive surrounding member 7 makes it possible to easily arrange the plurality of tip portions 8. In particular, it is possible to obtain a hair dryer in which the manufacturing cost for arranging the plurality of tip portions 8 is low and the assembling work is easy. Moreover, it becomes easy to arrange many pointed parts 8 and to further expand the discharge range.

  Further, according to the first embodiment, by providing the ground terminal 9 in the vicinity of the enclosing member 7, the potential of the members around the enclosing member 7 can be stabilized, so that ions can be released more stably. it can.

<2. Second Embodiment>
FIG. 4 is an internal perspective view of the hair dryer according to the second embodiment of the present invention as seen from the side, and shows a part cut away. This hair dryer differs from the first embodiment shown in FIG. 1 in that the negative ion generator 6 is provided not on the cylindrical housing 3 but on the handle side. The other points are the same as those in the first embodiment and have the same effects, so detailed description thereof will be omitted.
Note that not only the negative ion generator 6 but also the position of the motor 4, for example, is arbitrary, and it is sufficient that the hot air is discharged from the discharge port 1 of the housing 3.

<3. Third Embodiment>
FIG. 5 is an internal perspective view of a hair dryer according to the third embodiment of the present invention as seen from the side, and is a part cut away. This hair dryer does not include a portion corresponding to the enclosing member 7 of the first embodiment shown in FIG. 1, and is branched from the ion terminal of the negative ion generator 6 and directly connected to the plurality of tip portions 8. This is different from the first embodiment.

  FIG. 6 is a front view showing a discharge port in the hair dryer according to the third embodiment. Each figure of (A) thru | or (D) has shown the various deformation | transformation in 3rd Embodiment, FIG.6 (A) has three pointed parts 8, FIG.6 (B) has four pointed parts 8, FIG. 6C shows an example in which there are five pointed portions 8, and FIG. 6D shows an example in which there are six pointed portions 8. As shown in the drawing, the pointed portion 8 is disposed so as to surround the central portion of the flow path cross section perpendicular to the hot air discharge direction from at least three directions. As shown in the figure, the intervals between the tip portions 8 are preferably substantially equal, but may not be equal. These pointed portions 8 are preferably provided in the vicinity of the discharge port 1 of the housing 3, and are preferably provided in the vicinity of the inner peripheral surface of the housing 3.

Further, as in the first embodiment, it is desirable to place a ground terminal of the ground wire 9 in the vicinity of the plurality of tip portions 3, and this ground terminal is connected to the tip portion 8 without being connected to the tip portion 8. Place in the vicinity. By providing such a ground terminal, the potential of members around the tip 8 can be stabilized, so that ions can be released more stably.
The points other than the above are the same as those in the first embodiment, and the points that can be changed as in the second embodiment are also the same.

According to the experiment of the present inventor, the hair dryer of the third embodiment was not as excellent as the first embodiment provided with the surrounding member 7 surrounding in the ring shape as described above. A large amount of negative ions could be released in a wide range.
Unlike the first to third embodiments, the experiment was also conducted on a hair dryer that does not include the conductive enclosing member 7 and that has only two tip portions 8 and is arranged only at the two left and right sides of the channel cross section. However, the effect of the present invention of releasing a sufficient amount of negative ions over a wide range could not be achieved.

  Each of the embodiments described above shows specific examples of the present invention, and can be appropriately changed and added within the scope of the inventive concept described in the claims. For example, the shape, material, size, number of members, coupling method, and the like of each component of the hair dryer should not be limited to the above embodiments.

It is an internal perspective view which looked at the hair dryer concerning a 1st embodiment of the present invention from the side, and a part was notched and shown. It is a front view which shows the discharge outlet of the hair dryer which concerns on the said 1st Embodiment. It is a circuit diagram of the hair dryer which concerns on the said 1st Embodiment. It is the internal perspective view which looked at the hair dryer which concerns on 2nd Embodiment of this invention from the side, and partly cut away and showed it. It is the internal perspective view which looked at the hair dryer which concerns on 3rd Embodiment of this invention from the side surface, and partially cut away and showed it. It is a front view which shows the discharge outlet of the hair dryer which concerns on the said 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Discharge port, 2 ... Suction port, 3 ... Housing, 4, M ... Motor, 5 ... Fan, 6, ION ... Negative ion generator, 7 ... Enclosing member, 8 ... Point, 9 ... Ground wire, 10, HR ... Heater, 11 ... Heater plate

Claims (2)

A housing;
A fan and a heater for discharging hot air from the discharge port of the housing;
A negative ion generator that generates negative ions;
A conductive enclosing member that conducts to the negative ion generator and surrounds a central portion of a cross section of the flow channel perpendicular to the discharge direction of the hot air in a ring shape,
A hair dryer in which a plurality of tip portions for releasing negative ions to the warm air are arranged on the conductive enclosing member. A housing;
A fan and a heater for discharging hot air from the discharge port of the housing;
A negative ion generator that generates negative ions,
A plurality of tip portions that are connected to the negative ion generator and emit negative ions to the hot air are arranged so as to surround a central portion of a flow path cross section perpendicular to the hot air discharge direction from at least three directions. Hairdryer.

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