JP2008054770A - Hair dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the total quantity of negative ions bonded with water molecules by increasing the opportunities of contact of ionized oxygen with water molecules, and to prevent elimination of negative ions as much as possible in a hair dryer equipped with an ion generator. <P>SOLUTION: A blower fan 15, a motor 16 and a heater 17 are disposed inside a body casing 1 of the hair dryer, and the ion generator 31 is disposed in the center region of drying wind blown from the blower fan 15. A convergence body 40 for coercively fluid-guiding cold wind before heated by the heater 17 toward the periphery of the ion generator 31 is provided between the blower fan 15 and a blow-off grille 28. The convergence body 40 is tapered from the blower fan 15 side toward the ion generator 31 side to fluid-guide cold wind along the surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hair dryer provided with an ion generator.

  This type of hair dryer is known, for example, from US Pat. There, a blower fan and a heater are sequentially arranged in a wind tunnel partitioned by a main body case, and an ion generator is arranged in a central portion of the wind tunnel surrounded by the heater. Specifically, a cylindrical motor holder is extended to the side of the blowing grill, and a motor and a transformer unit of an ion generator are arranged inside. Further, an ion generator is mounted at the center of the blow grill, and the ion generator is adjacent to the front end of the motor holder. Rectifier blades are provided radially around the motor holder adjacent to the blower fan, and the flow of the dry wind in the wind tunnel is smoothed by guiding the dry wind swirled by the blower fan in the reverse direction. It has become.

  In connection with the present invention, a hemispherical cap is disposed at the leeward end of the motor main body, and further a rectifying blade is disposed around the motor main body to smoothly converge the dry air supplied from the blower fan. Thus, it is known in Patent Document 2 that the amount of blown air is increased. A circuit board for motor control is accommodated inside the cap. Patent Document 3 discloses that a plurality of rectifying blades are provided on the inner surface of a nozzle attached to the air outlet, and a dry air having a momentum suitable for a hairblow is sent out.

JP 2006-51181 A (paragraph number 0024, FIG. 4) JP-A-2-136599 (page 3, upper left column, line 16; FIG. 1) JP 2006-75194 A (paragraph number 0028, FIG. 1)

  In the hair dryer of Patent Document 1, a cylindrical motor holder and an ion generator of an ion generator are arranged adjacent to each other in a central portion of a wind tunnel surrounded by a heater. Since the interval is small, it is inevitable that the surroundings of the ion generator are wrapped with warm air heated by a heater. In this way, when the ion generator is exposed to warm air, oxygen that has been negatively ionized by corona discharge is released toward the warm air, reducing the chance of binding between negative ions and water molecules and reaching the hair. The negative ions tend to disappear before the process.

  According to the hair dryer of Patent Document 2 in which the rectifying blades are arranged around the motor main body, the flow of the dry air in the wind tunnel can be smoothed by the length of the front and rear of the rectifying blades. However, since the heater is arranged in the center of the passage between the rectifying blade and the air outlet, it is inevitable that the flow of the rectified drying air is disturbed by the heater, and the amount of drying air in the entire wind tunnel is accordingly increased. Ventilation resistance increases, and the amount of dry air sent from the air outlet decreases. The reach of the drying air is also reduced.

  The object of the present invention is to increase the chance of contact between the ionized oxygen and water molecules by wrapping the periphery of the ion generator with cold air before being heated by a heater, and thus the minus of the state of being bound to water molecules. The object is to provide a hair dryer capable of increasing the total amount of ions and further suppressing the disappearance of negative ions as much as possible. The object of the present invention is to smooth the flow of the drying air in the entire wind tunnel and improve the air volume of the drying air sent from the outlet, and further, the reach distance of the drying air is expanded and the negative ions combined with water molecules An object of the present invention is to provide a hair dryer that can be more reliably fed to the hair together with dry air.

  In the hair dryer of the present invention, a blower fan 15, a motor 16, and a heater 17 are arranged inside a hollow cylindrical main body case 1. Further, an ion generator is disposed between the blower fan 15 and the blowout grill 28 in the central region of the dry air fed from the blower fan 15. Thus, a feature is that a converging body 40 is provided between the blower fan 15 and the blowout grill 28 to flow and guide the cold air before being heated by the heater 17 toward the periphery of the ion generator.

  A converging body is arranged between the arrangement position of the heater 17 and the blower fan 15. The converging body is composed of a plurality of guide blades 56 that forcibly guide the drying air sent from the blower fan 15 toward the periphery of the ion generator.

  Between the ion generator 31 and the blower fan 15, a converging body 40 formed in a tapered shape from the blower fan 15 side toward the ion generator 31 side is disposed, and the peripheral surface of the converging body 40 To guide the cold air along.

  The tip of the convergent body 40 is positioned in the middle of the ventilation region surrounded by the heater 17.

  The rectifying blades 43 for rectifying the cold air flowing along the peripheral surface of the converging body 40 are formed at a plurality of locations around the converging body 40.

  A front guide 41 is provided adjacent to the tip of the converging body 40 to guide the cold air flow-guided by the converging body 40 toward the ion generator 31. The peripheral surface of the front guide 41 is formed in a tapered shape toward the tip of the converging body 40, and the ion generator 31 is accommodated therein.

  On the peripheral surfaces of the converging body 40 and the front guide 41, rectifying blades 43 and 44 for rectifying the cold air flow-guided by the converging body 40 and the front guide 41 are provided.

  The converging body 40 and the front guide 41 are integrally formed, and the ion generator 31 and the high voltage generator 32 are accommodated therein. Rectifier blades 43 and 44 that rectify the cool air flowing along the peripheral surfaces of the converging body 40 and the front guide 41 are continuously formed on the peripheral surfaces of the converging body 40 and the front guide 41.

  An acceleration nozzle 46 is provided on the inner surface of the nozzle 2 provided at the air outlet 27 of the main body case 1 to squeeze the dry air containing a large amount of cool air sent from the central portion of the air outlet 27 to increase the flow rate of the air.

  Between the blower outlet 27 of the main body case 1 and the blower fan 15, a cylindrical converging body 40 that is formed in a tapered shape toward the blower outlet 27 and that opens at the front and rear ends is disposed. An ion generator 31 is disposed near the exit of the internal passage of the converging body 40. A part of the cool air before being heated by the heater 17 can be flow-guided toward the periphery of the ion generator 31 by the converging body 40.

  In the hair dryer of the present invention, the blower fan 15, the motor 16, and the heater 17 are disposed inside the main body case 1, and further between the blower fan 15 and the blowout grill 28, and sent from the blower fan 15. The ion generator 31 was arranged in the central region of the supplied dry air. In addition, a converging body 40 is provided between the blower fan 15 and the blowout grill 28 so that the cold air before being heated by the heater 17 can be guided to flow around the ion generator 31 by the converging body 40.

  Thus, when the cold air is flow-guided toward the periphery of the ion generator 31 by the converging body 40, the periphery of the ion generator 31 can be wrapped with cold air having high humidity before being heated by the heater 17, The contact opportunity between ionized oxygen and water molecules can be increased. Therefore, according to the hair dryer of the present invention, the total amount of negative ions bonded to water molecules can be increased, and the amount of negative ions bonded to water molecules reaching the hair can be increased. Furthermore, by combining negative ions with water molecules contained in the cold air, the mass of negative ions combined with water molecules can be improved, so the range of negative ions in the state of binding with water molecules can be increased while flying. Thus, a hair dryer that can suppress the amount of negative ions disappearing and improve the hair styling effect as a whole can be obtained.

  Since the ion generator 31 is disposed in the central region of the dry air that is difficult to be heated by the heater 17, and the cold air before being heated by the heater 17 is guided to flow around the ion generator 31 by the converging body 40, The temperature (energy state) of water molecules bonded to negative ions can be kept low. Thereby, it is possible to prevent the water molecules attached to the hair from evaporating well, finish the hair in a moist state, and further improve the hair-styling effect.

  When the converging body arranged between the arrangement position of the heater 17 and the blower fan 15 is constituted by a plurality of guide blades 56, a part of the cool air sent from the blower fan 15 is transferred to the ion generator 31 by the guide blades 56. It is possible to increase the chance of contact between ionized oxygen and water molecules by forcibly turning to the surroundings. Further, since the cool air is deflected and guided by the plurality of guide blades 56, the structure of the converging body can be made compact and the internal structure of the main body case 1 can be simplified as compared with the case where the three-dimensional converging body 40 is provided.

  When the converging body 40 formed in a tapered shape from the blower fan 15 side toward the ion generator 31 side is disposed, a part of the cool air sent from the blower fan 15 is placed on the peripheral surface of the converging body 40. Thus, the chance of contact between the ionized oxygen and water molecules can be increased by wrapping the periphery of the ion generator 31 with cold air before being heated by the heater 17. Since the cool air is guided by the converging body 40 formed in a tapered shape toward the ion generator 31, the flow of the dry air in the entire wind tunnel can be smoothed and the flow resistance can be reduced, and the air outlet 27 correspondingly. The amount of dry air delivered from the air can be improved, and the reach of the dry air can be expanded, so that negative ions combined with water molecules can be more reliably delivered to the hair together with the cold air.

  When the tip of the converging body 40 is positioned in the middle of the ventilation region surrounded by the heater 17, it is possible to guide the flow of the cold air for a longer distance and smooth the flow of the dry air in the wind tunnel, while avoiding a decrease in the air volume. The negative ions combined with water molecules can be more reliably delivered to the hair together with cold air. Since the guide length of the converging body 40 is large, there is an advantage that the opportunity for the cold air to be heated by the heater 17 can be reduced and the temperature rise of the cold air can be prevented.

  When the rectifying blades 43 are provided at a plurality of locations around the converging body 40, the cold air flowing along the peripheral surface of the converging body 40 is rectified by the rectifying blades 43 to impart straightness, and then sent out from the outlet 27. The amount of dry air can be improved, and at the same time, the reach of cold air containing negative ions bound to water molecules can be expanded to prevent the mixture from coming into contact with hot air, further enhancing the hair-styling effect as a whole be able to.

  Adjacent to the tip of the convergent body 40, a front guide 41 formed in a tapered shape toward the tip of the convergent body 40 is provided, the ion generator 31 is accommodated in the front guide 41, and the converging body 40 flows. When the guided cool air is flow-guided around the ion generator 31 by the front guide 41, the cool air converged on the central region of the dry air is flow-guided by the front guide 41 in a cylindrical shape, Negative ions can be released toward the center of the cold air.

  This increases the chance of contact between the ionized oxygen and water molecules, and of course, the negative ions bound to the water molecules are sent out in a state surrounded by cold air. Can be more reliably prevented, and the negative ions sent from the air outlet 27 can be more reliably prevented from disappearing during the flight, thereby further enhancing the hair-styling effect. Since the ion generator 31 is accommodated in the front guide 41, the ventilation resistance can be reduced as compared with the case where the cold air converged by the converging body 40 is directly supplied to the periphery of the ion generator 31. The amount of dry air sent out from can be improved.

  When the rectifying blades 43 and 44 for rectifying the cold air flow-guided by the converging body 40 and the front guide 41 are provided on the peripheral surfaces of the converging body 40 and the front guide 41, the converging body 40 and the front guide 41 The cool air flowing along the peripheral surface is rectified by the rectifying blades 43 and 44, and the straightness of the cool air containing negative ions sent from the outlet 27 can be improved and reliably delivered to the hair. It can be improved.

  When the converging body 40 and the front guide 41 are integrally formed and the ion generator 31 and the high voltage generator 32 are accommodated therein, the flow of the drying air is disturbed by the ion generator 31 and the high voltage generator 32. The ventilation resistance can be reduced and the ventilation efficiency can be improved accordingly. In addition, since the ion generator 31 and the high voltage generator 32 are exposed to the dry wind, generation of noise due to wind noise and eddy currents can be eliminated, and the hair dryer can be silenced.

  When the acceleration nozzle 46 is provided on the inner surface of the nozzle 2 provided at the air outlet 27 of the main body case 1, and the drying air containing a large amount of cool air sent from the central portion of the air outlet 27 is throttled by the acceleration nozzle 46, Increases the flow rate of dry air that contains a lot of cool air that is blown out, and can quickly feed negative ions bound to water molecules to the hair. Can be increased.

  A converging body 40 having a tapered shape is disposed between the air outlet 27 and the blower fan 15 toward the air outlet 27, and a part of the cold air before being heated by the heater 17 is introduced into the inside of the converging body 40. Then, according to the air blowing structure that guides the introduced cold air toward the periphery of the ion generator 31 disposed near the exit of the convergence body 40, the cold air is converged in a state where the radiant heat of the heater 17 is blocked by the convergence body 40. The ion generator 31 can be fed around. Therefore, it is possible to reliably prevent a part of the warm air heated by the heater 17 from being fed around the ion generator 31 as compared with the case where the cold air is flow-guided along the peripheral surface of the converging body. The temperature of the cold air that has reached the periphery of the ion generator 31 can be lowered, and the periphery of the ion generator 31 can be wrapped with cooler cold air to increase the chance of contact between the ionized oxygen and water molecules.

(Example) FIGS. 1-5 shows the Example of the hair dryer which concerns on this invention. In FIG. 2, the hair dryer has a hollow cylindrical main body case 1 that is long to the left and right, a nozzle 2 that is detachably attached to the front end thereof, and a grip 3 that is provided on the rear side of the lower surface of the main body case 1.

  A switch button 4 for switching the energization state of the heater 17 and a switch knob 5 for switching the air volume in three stages are provided on the top and bottom of the front surface of the grip 3, and the switch button 4 and the switch knob 5 are used for switching operation. The switches 4a and 5a are incorporated in the grip 3. The switch 4a for the switch button 4 is normally in an on state, and when the switch button 4 is pushed in, the switch 4a is switched to an off state and the energization to the heater 17 can be stopped.

  The switch knob 5 is slid upward from the off position at the lower end to switch the switch 5a in the order of weak wind, strong wind, and turbo, so that the drive rotation speed of the motor 16 can be changed to a large or small. At this time, the ion generator is also driven simultaneously. The ion generator may be driven by turning on a dedicated switch.

  The main body case 1 is engaged with a main case 7 that is divided into left and right parts, a front case 8 that is externally fitted to the front end and the rear end of the main case 7, a rear case 9, and a rear end of the rear case 9. It is comprised by the grill case 10 etc. which are mounted | worn. The suction port 11 defined by the grill case 10 is covered with a partial spherical suction grill 12 that also serves as a coarse filter. Inside the main body case 1, an axial-flow type blower fan 15, a motor 16 that rotationally drives the blower fan 15, and a heater 17 are arranged in the order of description from the suction port 11 side.

  As shown in FIG. 1, a fan case 19 is disposed at the rear end of the inner surface of the main body case 1 facing the suction port 11, and a blower fan 15 and a motor 16 are incorporated therein. Specifically, the fan case 19 includes a cylindrical air guide tube 20 that surrounds the blower fan 15, a center holder tube 21, and a plurality of rectifying blades 22 that radially connect the holder tube 21 and the air guide tube 20. Configure. A motor 16 is incorporated in the holder cylinder 21, and a blower fan 15 is disposed in a space behind the holder cylinder 21 and the rectifying blade 22 (on the suction port 11 side).

  As shown in FIG. 4, the heater 17 formed of nichrome wire is spirally wound around three heater holders 25 fixed in the main case 7 and assembled in a * shape. The periphery of the insulating cylinder 26 is covered with a cylindrical cylinder-shaped insulating cylinder 26 and a thin steel plate reinforcing cylinder covering the outer surface of the insulating cylinder 26. The heater 17, the heater holder 25, the insulating cylinder 26, and the reinforcing cylinder can be handled as a set of members, and are held and fixed to the left and right by the previous main case 7, and further on the inner surface of the outlet 27 of the main case 7. A fixed blow grill 28 and the previous fan case 19 are sandwiched and fixed in the front-rear direction. The insulating cylinder 26 and the reinforcing cylinder function as a heat insulator that blocks the radiant heat of the heater 17, thereby preventing the main case 7 from becoming hot.

  Most of the drying air fed from the blower fan 15 is rectified by the rectifying blades 22 and then guided along the inner surface of the insulating tube 26 continuing to the air guide tube 20 to move to the air outlet 27. In the meantime, it is heated by the heater 17 and warmed. Part of the drying air fed from the blower fan 15 moves through the central region of the feed path surrounded by the heater 17. Since the drying air that moves through the central region has almost no opportunity to come into contact with the heater 17, the drying air is sent out from the outlet 27 as drying air (cold air) having a temperature lower than the previous warm air. In addition, the cold air said by this invention means the dry air whose temperature is fully low compared with the warm air heated with the heater 17, and is irrelevant to a user's perceived temperature. The temperature of the hot air is not uniform due to differences in the heat capacity of the heater 17 to be used, the amount of air blown by the blower fan 15, and the temperature of the cold air depends on the air temperature that varies depending on the season. However, as an example to help understanding how much the temperature difference between hot air and cold air is, when the temperature of the hot air at the outlet 27 is around 120 ° C., the temperature of the cold air flowing through the central region is 60 It means a situation where the temperature is around ℃.

  In order to feed negative ions to the hair together with the dry air generated by the blower fan 15, it is a central region of the previous dry air, that is, a region through which mainly cold air passes, at a position facing the center of the inner surface of the blow grill 28. An ion generator is arranged. As shown in FIG. 1, the ion generator includes an ion generator 31 and a high voltage generator 32. The ion generator 31 includes a needle-shaped central electrode 33, a ring-shaped peripheral electrode 34, and an electrode holder 35 that supports both 33 and 34. A dielectric cylinder 36 is formed in the electrode holder 35, a central electrode 33 is disposed at the center of the inside thereof, and a peripheral electrode 34 is disposed at the proximal end of the outer peripheral surface of the dielectric cylinder 36 (see FIG. 5).

  The high voltage generation unit 32 encloses component parts of an ion generation circuit such as a rectifier circuit, a pulse generation circuit, and a transformer that boosts the pulse current adjusted by the pulse generation circuit in a resin, and collects them as one part. It is. By applying a high voltage generated by the ion generation circuit between the central electrode 33 and the peripheral electrode 34, a corona discharge can be generated, and negative ions can be generated and released.

  In order to forcibly guide the cold air before being heated by the heater 17 toward the periphery of the ion generator 31, a converging body 40 and a front guide 41 are provided in the central region of the dry air. The converging body 40 integrally includes a bullet-shaped guide main body 42 formed in a tapered shape toward the ion generator 31 and six rectifying blades 43 protruding from the peripheral surface of the guide main body 42. It consists of a plastic molded product.

  The inside of the guide body 42 is a cavity, and the high voltage generator 32 is attached and fixed in the cavity. By attaching the rear end opening of the guide main body 42 to the rear half portion of the motor 16, the converging body 40 can be integrated with the motor 16, and the central axes of both 16 and 40 can be made to coincide. In this attached state, the tip of the converging body 40 is located in the middle part before and after the ventilation region surrounded by the heater 17. The meaning will be described later. When the high voltage generator 32 is housed inside the guide main body 42 as described above, it is possible to prevent the high voltage generator 32 from being exposed to dry air and generating noise due to wind noise and eddy currents.

  As shown in FIG. 3, the rectifying blades 43 are positioned in the central portion of the space sandwiched between the heater holders 25 adjacent in the circumferential direction, thereby rectifying the cold air flowing along the peripheral surface of the guide body 42. Rectification is ensured by the cooperative action of the blades 43 and the inner end portion of the heater holder 25, and straightness can be imparted to the cold air. The projecting dimension of the rectifying blade 43 is large on the side close to the blower fan 15, and becomes smaller as it approaches the tip of the guide body 42.

  Like the guide body 42, the front guide 41 is formed of a bullet-shaped plastic molded product having a hollow inside, and six rectifying blades 44 similar to the previous rectifying wings 43 project from the peripheral surface thereof. It is. The projecting dimension of the rectifying blade 44 is large on the side of the front opening of the front guide 41 and is set smaller as it approaches the tip. The front guide 41 is fixed to the heater holder 25 with its tip facing the front and rear of the guide main body 42 with a gap therebetween. By accommodating the previous ion generator 31 in the cavity of the front guide 41 in this state, the front end opening of the dielectric cylinder 36 faces the central opening of the blowing grill 28. The center axis of the front guide 41 and the converging body 40 is located on the center axis of the main body case 1.

  As described above, when the converging body 40 and the front guide 41 are provided in the central region of the dry air supply passage, the cool air sent from the blower fan 15 is flow-guided on the peripheral surface of the converging body 40, and the converging body The cold air can be smoothly converged between the tip of 40 and the tip of the front guide 41. The converged cold air is flow-guided on the peripheral surface of the front guide 41 so as to have a cylindrical cross section, and the flow of the cold air surrounding the dielectric cylinder 36 of the ion generator 31 is changed to the front guide 41. The outer surface of the opening is formed. Therefore, in the state where the ion generator is driven, the negative ions generated by the corona discharge are emitted toward the central portion of the cold air containing a large amount of water molecules.

  The cross-sectional area of the dry air feed passage surrounded by the insulating cylinder 26 is minimum at the front and rear ends thereof, and is maximum between the tip of the converging body 40 and the tip of the front guide 41. Therefore, the relationship between the flow velocity and the pressure in the feeding passage is such that the flow velocity decreases by the larger cross-sectional area between the tip of the converging body 40 and the tip of the front guide 41, and the pressure increases accordingly. .

  As described above, when negative ions are released toward the central portion of the cold air that is converged by the converging body 40 and is guided in a cylindrical shape by the front guide 41, the chance of contact between the ionized oxygen and water molecules is greatly increased. Thus, the total amount of negative ions bonded to water molecules can be increased. Further, the cold air whose straightness has been improved by the rectifying action of the rectifying blades 43 and 44 can extend the reach of negative ions in a state of being bonded to water molecules, so that the state of being combined with water molecules reaching the hair as a whole The hair styling effect can be improved by increasing the amount of negative ions.

  Since the tip of the converging body 40 is positioned in the middle of the front and rear of the ventilation region surrounded by the heater 17, it is possible to avoid the cold air flowing along the surface of the converging body 40 from being heated by the heater 17 as much as possible. Since cold air containing negative ions in a state of being bonded to water molecules after passing through the part guide 41 can be prevented from coming into contact with the hot air and mixed together, the temperature (energy) of the water molecules bonded to the negative ions accordingly State) can be kept low. Thereby, it is possible to prevent the water molecules attached to the hair from evaporating well and finish the hair in a moist state, thereby improving the hair styling effect.

  As shown in FIG. 1, when hair is combined with the nozzle 2, an accelerating nozzle 46 is provided on the inner surface of the hair so that dry air containing a large amount of cold air sent from the central portion of the air outlet 27 can be obtained. The flow rate of the drying air can be increased by squeezing, and negative ions in a state of being bonded with water molecules can be blown to the hair at a stretch, so that the negative ions can be well prevented from disappearing before reaching the hair. As shown in FIG. 5, the acceleration nozzle 46 is formed such that the opening area of the inlet 47 facing the outlet 27 is the largest and the opening area on the outlet side is the smallest. They are connected via individual support arms 48.

  6 to 9 show another embodiment of the converging body 40 and the front guide 41. In FIG. 6, the converging body 40 and the front guide 41 are integrated, and the ion generator 31 and the high voltage generator 32 are accommodated therein. Specifically, the tip of the guide body 42 of the converging body 40 and the tip of the front guide 41 are smoothly connected to each other through the constricted portion 51, and the rectifying blades 43 and 44 are formed along the outer peripheral surface thereof. The high voltage generator 32 is arranged inside the converging body 40, and the ion generator 31 is arranged facing the front end opening of the front guide 41.

  As described above, when the converging body 40 and the front guide 41 are integrated, the cold air converged by the converging body 40 can be guided by the constricted portion 51 and smoothly flow-guided to the front guide 41. As compared with the case where the front guide 41 and the front guide 41 are provided separately, the flow resistance can be reduced and the blowing efficiency of the cold air can be improved. Further, since the ion generator 31 is accommodated in the front guide 41, it is possible to prevent the ion generator 31 from being exposed to dry air and generating noise due to wind noise or vortex. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted. The same applies to the following embodiments.

  In the above embodiment, the cold air is guided to flow along the outer peripheral surface of the converging body 40. However, as shown in FIG. 7, the converging body 40 is interposed between the air outlet 27 of the main body case 1 and the blower fan. The cool air flowing inside the converging body 40 can be guided to flow toward the ion generator 31 near the exit of the passage. The converging body 40 is formed in a tapered shape toward the air outlet 27 and has a cylindrical body with front and rear ends opened, and the opening diameter of the inlet 53 is set to be larger than the outer diameter of the holder cylinder 21. Thus, the cool air sent from the blower fan 15 is introduced into the converging body 40 and converged. Between the electrode holder 35 and the cylindrical wall of the converging body 40, a passage 54 that allows the converged cold air to pass is formed so as to surround the electrode holder 35. The high voltage generator 32 is arranged inside the converging body 40 using a space in the center of the passage near the entrance 53.

  In FIG. 8, like the hair dryer described in FIG. 1, a converging body 40 and a front guide 41 are provided in the central region of the drying air supply passage, and a plurality of rectifying blades 22 of the fan case 19 are provided. The guide vane (converging body) 56 is provided so that the cold wind can be forcedly guided toward the periphery of the ion generator by the cooperative action of the converging body 40 and the guide vane 56. The guide blades 56 that are opposed to each other in the radial direction with the holder cylinder 21 in between are inclined so as to converge toward the converging body 40, and the cold air flowing between the adjacent rectifying blades 22 is forcibly converged. Flow guidance toward the body 40.

  In both the converging body 40 and the front guide 41, the rectifying blades 43 and 44 are omitted. A slight gap is provided between the converging body 40 and the front end of the motor 16 in this embodiment, and the front portion of the peripheral surface of the motor 16 is exposed. Therefore, the heat generated by the motor 16 can be effectively released from the exposed portion.

  In FIG. 9, the guide body 42 of the converging body 40 is formed in a front tapered taper shape, and the ion generator 31 is disposed at the front end thereof. In this way, the converging body 40 is simply formed in a tapered shape, and its front end may be positioned around the ion generator 31, and the front guide 41 can be omitted.

  Other than the above-described embodiment, the structure of the ion generator 31 does not have to be the structure described in the embodiment. In short, any structure can be used as long as it can generate ions. The guide blade 56 can be provided in the heater holder 25. In the air blowing structure described in FIGS. 1 and 6, the outer surfaces of the respective rectifying blades 43 and 44 are covered with a shielding cylinder similar to the cylindrical converging body 40 described in FIG. 7, and discharged from the heater 17. Radiant heat can be blocked by the shielding cylinder. The high voltage generator 32 can be arranged using the internal space of the grip 3, and in that case, the high voltage generator 32 is exposed to dry wind, and noise due to wind noise and eddy currents is generated. Can be prevented. However, from the viewpoint of avoiding an excessively thick grip 3 by disposing the high voltage generator 32, it is preferable to dispose it in the main body case 1. The present invention can be applied to hair blowers, pet dryers and the like other than hair dryers. The blower fan 15 may be a centrifugal fan or a transverse fan.

It is a vertical side view of a main body case. It is a side view of a hair dryer. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is a vertical side view which shows the relationship between an ion generator and a nozzle. It is a vertical side view of the hair dryer which concerns on another Example. It is a vertical side view of the hair dryer which concerns on another Example. It is a vertical side view of the hair dryer which concerns on another Example. It is a vertical side view of the hair dryer which concerns on another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body case 11 Suction inlet 15 Blower fan 16 Motor 17 Heater 27 Air outlet 31 Ion generator 32 High voltage generation part 40 Convergent body 41 Front guide

Claims (10)

A blower fan (15), a motor (16), and a heater (17) are disposed inside the hollow cylindrical main body case (1),
An ion generator (31) is disposed between the blower fan (15) and the blowout grill (28) in the central region of the dry air fed from the blower fan (15),
A converging body (40) is provided between the blower fan (15) and the blowout grill (28) to guide the cold air before being heated by the heater (17) toward the periphery of the ion generator (31). Hair dryer characterized by being. A converging body is arranged between the arrangement position of the heater (17) and the blower fan (15),
The converging body is composed of a plurality of guide blades (56) for forcibly turning the dry air sent from the blower fan (15) toward the periphery of the ion generator. Hair dryer. Between the ion generator (31) and the blower fan (15), a converging body (40) formed in a tapered shape from the blower fan (15) side toward the ion generator (31) side is formed. Has been placed,
The hair dryer according to claim 1, wherein the cool air is guided along the circumferential surface of the converging body (40).   The hair dryer according to claim 3, wherein the tip of the converging body (40) is located in the middle of the ventilation region surrounded by the heater (17).   The hair dryer according to claim 3 or 4, wherein rectifying blades (43) for rectifying cool air flowing along the peripheral surface of the converging body (40) are formed at a plurality of locations around the converging body (40). Adjacent to the tip of the convergent body (40), there is provided a front guide (41) for guiding the cold air flow-guided by the convergent body (40) toward the ion generator (31),
The peripheral surface of the front guide (41) is formed in a tapered shape toward the tip of the converging body (40), and the ion generator (31) is accommodated therein. Or the hair dryer of 5.   On each of the peripheral surfaces of the converging body (40) and the front guide (41), there are provided rectifying blades (43, 44) for rectifying the cold air flow-guided by the converging body (40) and the front guide (41). The hair dryer according to claim 6. The converging body (40) and the front guide (41) are integrally formed, and the ion generator (31) and the high voltage generation section (32) are accommodated therein,
The rectifying blades (43, 44) for rectifying the cold air flowing along the peripheral surfaces of the converging body (40) and the front guide (41) are continuous with the peripheral surfaces of the converging body (40) and the front guide (41). The hair dryer according to claim 6 or 7, wherein the hair dryer is formed.   The flow rate of the drying air is increased by narrowing the drying air containing a large amount of cold air sent from the central portion of the air outlet (27) on the inner surface of the nozzle (2) provided at the air outlet (27) of the main body case (1). The hair dryer according to any one of claims 1 to 8, wherein an acceleration nozzle (46) is provided. A cylindrical converging body that is formed in a tapered shape toward the air outlet (27) between the air outlet (27) and the blower fan (15) of the main body case (1) and has front and rear ends opened ( 40) is arranged,
An ion generator (31) is disposed near the exit of the internal passage of the converging body (40),
The hair dryer according to claim 1, wherein a part of the cold air before being heated by the heater (17) can be flow-guided toward the periphery of the ion generator (31) by the converging body (40).

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