JP2004351031A - Hair dryer - Google Patents

Abstract

An air flow generated by a fan and coming into contact with a heater can be flow-guided in an orderly manner by improving a structure of a ventilation passage provided in a main body case and an arrangement structure of a heater. Thus, the temperature unevenness of the warm air blown out from the outlet is eliminated.
A blast portion (E1) and a ventilation portion (E2) are provided adjacent to each other inside a cylindrical main body case (1). A fan 13 for blowing air is arranged in the blast section E1. The ventilation section E2 houses a motor 12 for driving a fan, a heater 16 for heating air, and a heater holder 15 for supporting the heater 16. The heater holder 15 includes a cylindrical body 20 arranged along the center axis of the ventilation section E2, and an insulating plate 21 radially engaged and mounted on the peripheral surface of the cylindrical body 20. A cylindrical air passage S is formed between the cylindrical body 20 and the main body case 1. The heater 16 is disposed inside the air passage S. The heater 16 is mounted around the insulating plate 21 so as to face the peripheral surface of the cylindrical body 20.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hair dryer provided with a heater for generating warm air.
[0002]
[Prior art]
With respect to the present invention, it is known that an insulating frame for supporting a heater is composed of a cylindrical insulating tube and a cross-shaped insulating plate projecting therearound, and a motor is housed inside the insulating tube ( Patent Document 1). There, the space inside the case is divided into four ventilation passages by an insulating plate formed in a cross shape, and a heater is wound around the insulating plate. The insulating cylinder fitted to the motor protrudes toward the outlet from the front end face of the motor, and electric components are arranged by utilizing the internal space.
[0003]
It is known that in a hair dryer equipped with an ion generator, a central portion of a cross-shaped insulating frame for a heater is cut out to secure a housing space, and a transformer or a circuit board of the ion generator is housed in this space. (See Patent Document 2).
[0004]
[Patent Document 1]
Japanese Utility Model Registration No. 2547775 (Paragraph No. 0012, FIG. 1)
[Patent Document 2]
JP-A-2003-70526 (paragraph number 0023, FIG. 2)
[0005]
[Problems to be solved by the invention]
In the hair dryer of Patent Document 1, most of the heater is wound around the insulating plate facing the passage near the outlet. Incidentally, the cross-sectional shapes of the four air passages divided by the insulating plate are largely different between the front and rear. The cross-sectional shape of the rear air passage on the peripheral surface of the insulating cylinder adjacent to the fan is fan-shaped, but the cross-sectional shape of the front air passage between the front end of the insulating cylinder and the outlet is a quadrant. The cross-sectional area increases suddenly. Therefore, in the front air passage, a part of the airflow that has passed through the rear air passage tends to flow toward the center side of each air passage, and as described above, most of the heater is in the front air passage. Since the airflow is arranged facing the airflow, it is difficult for the airflow flowing through the front airflow passage to be heated by the heater, and the temperature of the hot air blown out from the outlet tends to be uneven.
[0006]
According to the hair dryer of Patent Literature 2, since the transformer and the circuit board of the ion generator are arranged by using the space adjacent to the motor, the interior space of the main body case is effectively used, and the hair dryer is enlarged. Can be prevented. However, since the transformer and the circuit board are exposed to the air passage divided by the insulating frame for the heater, the flow of the air passing through the air passage is inevitably disturbed by the transformer and the circuit board. As a result, Variations occur in the temperature of the hot air blown from each air passage. Since the air flow collides with the intersecting insulating plate in the housing portion of the transformer or the circuit board, there is a disadvantage that wind noise is easily generated. Since the insulating plate is positioned at the intersection, the insulating plate may be displaced and moved when, for example, a drop impact is received.
[0007]
An object of the present invention is to improve the structure of an air passage provided in a main body case and an arrangement structure of a heater so that an air flow generated by a fan and coming into contact with a heater can be flow-guided in an orderly manner. An object of the present invention is to provide a hair dryer capable of effectively drying hair and the like by eliminating the uneven temperature of the hot air to be blown out.
[0008]
An object of the present invention is to form a cylindrical ventilation passage by a cylinder and a main body case which are arranged along a center axis of a ventilation portion of a main body case, and arrange a heater in the ventilation passage, thereby reducing air flow. An object of the present invention is to provide a hair dryer that can always contact the heater with the heater in a stable state, and thus can surely eliminate the temperature unevenness of the warm air blown out from the outlet.
[0009]
An object of the present invention is to use a cylinder arranged along a central axis of a ventilation portion of a main body case, and to arrange components of a motor and an ion generator in an internal space thereof, thereby passing through a ventilation path. It is an object of the present invention to provide a hair dryer which can prevent the flow of air from being disturbed by the above-mentioned components, and which can be made compact and compact as a whole.
[0010]
[Means for Solving the Problems]
In the hair dryer of the present invention, a draft part E1 and a ventilation part E2 are provided adjacent to each other inside a cylindrical main body case 1. The draft unit E1 houses a fan 13 for blowing air, and the ventilation unit E2 contains a motor 12 for driving a fan, a heater 16 for heating air, and a heater holder 15 for supporting the heater 16. ing. The heater holder 15 is mounted radially on the peripheral surface of the cylindrical body 20 disposed along the central axis of the ventilation section E2, and a ventilation passage between the cylindrical body 20 and the main body case 1. And an insulating plate 21 for dividing S in the circumferential direction. The heater 16 is wound and mounted around the insulating plate 21 so as to face the peripheral surface of the cylindrical body 20 (claim 1).
[0011]
Specifically, the ventilation passage S is provided so as to occupy most of the front-rear length of the ventilation portion E2, and the insulating plate 21 is provided from the peripheral surface of the cylindrical body 20 to the vicinity of the blow grill 6. (Claim 2).
[0012]
Mounting grooves 22 for inserting and mounting the insulating plate 21 are formed at regular intervals along the peripheral surface of the cylindrical body 20, and before and after a mounting edge 29 of the insulating plate 21 that engages with the mounting groove 22. The first claw piece 30 and the second claw piece 31 are provided, and the first claw piece 30 is engaged with the opening edge of the cylindrical body 20 in a state where the mounting edge 29 of the insulating plate 21 is mounted in the mounting groove 22. At the same time, the second claw piece 31 is engaged with the claw receiving hole 23 protruding from the peripheral surface of the cylindrical body 20 (Claim 3).
[0013]
The cylinder 20 and the motor holder 11 that supports the motor 12 are disposed adjacent to each other, and house the motor 12 inside the cylinder 20. The protruding end of the second claw piece 31 that engages with the claw receiving hole 23 is engaged with a hook 76 provided on the motor holder 11 so that the insulating plate 21 and the cylindrical body 20 cannot be rotated with respect to the main body case 1. It is fixed (claim 4).
[0014]
The electrode unit 36 of the ion generator is supported by an electrode holder 51 fixed to the main body case 1, and a holding piece 57 provided on the inner surface side of the electrode holder 51 engages and holds the front end of the insulating plate 21. ).
[0015]
An ion generator including an electrode unit 36, a transformer 35, and an ion generation circuit 38 is arranged inside the main body case 1. The electrode unit 36 is disposed between the cylinder 20 and the blow grill 6, and at least the transformer 35 of the transformer 35 and the ion generation circuit 38 is housed inside the cylinder 20 in a state adjacent to the motor 12. (Claim 6).
[0016]
A guide space L is formed between the electrode unit 36 and the cylindrical body 20 for guiding a part of the airflow moving along the air passage S toward the electrode unit 36 (claim 7).
[0017]
The transformer 35 and the ion generation circuit 38 of the ion generator are enclosed in a resin mold 39 to form one unit component. The resin mold 39 can be accommodated inside the cylindrical body 20 (claim 8).
[0018]
Effects of the Invention
In the hair dryer according to the present invention, as shown in FIG. 1, the heater holder 15 is fitted and mounted radially on the circumferential surface of the cylindrical body 20 arranged along the central axis of the ventilation section E2. Since the insulating plate 21 is composed of the insulating plate 21 and the insulating plate 21, the insulating plate 21 can be formed in a less wasteful state as compared with the conventional insulating plate that is arranged crosswise. A cylindrical air passage S is formed between the main body case 1 and the cylinder 20, and the air passage S is divided in the circumferential direction by the insulating plate 21, and the heater 16 faces the peripheral surface of the cylinder 20. Since it is wound around the insulating plate 21, it can be heated by contacting the heater 16 with a stable air flow passing through the air passage S. Drying can be performed effectively (claim 1).
[0019]
If the ventilation passage S is provided so as to occupy most of the front-rear length of the ventilation portion E2 and the insulating plate 21 is provided from the peripheral surface of the cylindrical body 20 to the vicinity of the blowout grill 6, the ventilation passage S is longer. Only the airflow can be further stabilized. Therefore, the airflow is brought into contact with the heater 16 in a more stable state, and the temperature unevenness of the hot air blown from the blowout grill 6 can be more reliably eliminated (claim 2).
[0020]
After inserting and engaging the insulating plate 21 into the mounting groove 22 provided on the peripheral surface of the cylindrical body 20, the first claw piece 30 and the second claw piece 31 provided before and after the mounting edge 29 of the insulating plate 21 are According to the fixing structure of the insulating plate 21 which is engaged with the opening edge of the cylindrical body 20 and the claw receiving hole 23 respectively, the mounting edge 29 of the insulating plate 21 is simply inserted into the mounting groove 22 and engaged. The two claw pieces 30 and 31 restrict the insulating plate 21 from coming out of the mounting groove 22, and can further restrict the forward or rearward and radial movement. Accordingly, the insulating plate 21 can be more firmly mounted and fixed to the cylindrical body 20. For example, in a case where the insulating plate 21 is subjected to a drop impact, the insulating plate 21 is reliably prevented from falling out of the mounting groove 22, and the reliability of the heater unit is improved. The performance is improved. Since the insulating plate 21 can be attached and fixed to the cylindrical body 20 by inserting and engaging with the cylindrical body 20, the insulating plate 21 can be assembled easily with less labor (claim 3).
[0021]
When the cylinder 20 and the motor holder 11 are arranged adjacent to each other and the motor 12 is housed inside the cylinder 20, the radiant heat of the heater 16 can be blocked by the cylinder 20, so that the motor 12 is overheated and the rotation efficiency is reduced. It can be reliably prevented from lowering. Further, the protruding end of the second claw piece 31 is engaged with the engaging portion 76 of the motor holder 11, and the insulating plate 21 and the cylindrical body 20 are non-rotatably fixed to the main body case 1 using the motor holder 11. Accordingly, there is no need to provide a detent structure between the heater holder 15 and the main body case 1, and the structure of the heater holder 15 and the main body case 1 can be simplified accordingly.
[0022]
When the holding piece 57 is provided on the electrode holder 51 that supports the electrode unit 36 and the front end of the insulating plate 21 is engaged and held by the holding piece 57, the insulating plate 21 can be further firmly fixed, and its standing posture can be optimized. It is possible to prevent a change in the posture of the insulating plate 21 when receiving a drop impact or a collision impact. Therefore, the support shape of the heater 16 is always maintained in an appropriate state, and uneven heat generation can be prevented (claim 5).
[0023]
An ion generator including an electrode unit 36, a transformer 35, and an ion generating circuit 38 is disposed inside the main body case 1, and at least the transformer 35 of the transformer 35 and the ion generating circuit 38 is in a state in which the transformer 35 is adjacent to the motor 12. When housed inside the body 20, the transformer 35 can be prevented from being overheated by the radiant heat of the heater 16, and the flow of air in the air passage S can be prevented from being disturbed by the transformer 35. The airflow passing through S becomes orderly (claim 6).
[0024]
When the guide space L is formed between the electrode unit 36 and the cylindrical body 20, a part of the airflow moving along the air passage S is flow-guided toward the electrode unit 36 via the guide space L. Since new air can be reliably supplied to the peripheral portion of the electrode unit 36, negative ions are effectively generated, and negative ions floating around the electrode unit 36 can be reliably blown out and supplied together with the air flow. ).
[0025]
When the transformer 35 and the ion generating circuit 38 are sealed in a resin mold 39 to form a single unit component, and this is housed inside the cylindrical body 20, the flow of air in the ventilation passage S is controlled by the transformer 35 and the ion generating circuit 38. In addition to being prevented from being disturbed, it is possible to prevent the electric components constituting the ion generating circuit 38 from being heated by the radiant heat of the heater 16 and falling into an overheated state. The flow of air in the guide space L provided between the electrode unit 36 and the cylindrical body 20 is not hindered by the transformer 35 or the ion generation circuit 38, and the hair dryer is used only for the use of the internal space of the cylindrical body 20. Can be reduced in size (claim 8).
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 10 show an embodiment of a hair dryer according to the present invention. In FIG. 2, the hair dryer includes a horizontally long cylindrical main body case 1, a nozzle 2 removably attached to a front end thereof, and a grip 3 provided on a lower surface rear side of the main body case 1.
[0027]
A switch knob 4 that can slide up and down is provided on the front surface of the grip 3. By switching the switch knob 4, the air volume and the heater temperature can be controlled, and the power supply to the ion generator can be turned on and off. A switch 5 operated by the switch knob 4 and the like are housed inside the grip 3. As shown by the imaginary line in FIG. 1, the grip 3 is foldably connected to the main body case 1 around the shaft 8.
[0028]
The main body case 1 includes a cylindrical air guide case 1A that occupies most of the main case 1 and a cylindrical fan case 1B that is press-fitted to the rear end opening of the air guide case 1A. An air outlet grille 6 is provided at an air outlet at the front of the opening of the air guide case 1A, and an air inlet grill 7 is provided at an air inlet at the rear surface of the fan case 1B.
[0029]
In FIG. 1, inside the main body case 1, a wind generating portion E1 on the rear side of the case and a ventilation portion E2 on the front side thereof are provided adjacent to each other. A fan 13 described later is housed in the draft part E1, and a motor 12, a heater 16, a heater holder 15, and an ion generator described later are housed in the ventilation part E2.
[0030]
Inside the main body case 1, a blower unit, a heater unit, and an ion generator are arranged. The blower unit includes a motor 12 mounted on a motor holder 11 and a fan 13 fixed to an output shaft of the motor 12. After the motor holder 11 is fitted into the air guide case 1A from the rear side, the fan case 1B is press-fitted to the air guide case 1A to be integrated with the main body case 1. In this mounted state, the fan 13 is housed in the wind-blowing section E1.
[0031]
3 and 4, the motor holder 11 includes a holder base 70 externally fitted to the motor 12, a ring 71 internally fitted to the main body case 1, and six straightening vanes 72 connecting the base 70 and the ring 71. Are integrally formed so as not to rotate relative to the main body case 1. For this purpose, an engaging portion 74 that engages with the engaging concave portion 73 of the main body case 1 is provided at three places on the peripheral surface of the ring portion 71 (see FIG. 5), and a pair of left and right engaging portions 74 provided on the lower surface is provided. A regulating rib 75 is provided to protrude. A locking portion 76 for engaging and holding a second claw piece 31 described later is formed at a front edge base portion of each of the flow regulating blades 72.
[0032]
In FIG. 6, the heater unit includes a heater 16 wound around the heater holder 15, a heater 16, a cylindrical insulating cover 17 covering the outer surfaces of the two, and a cylindrical heater cover 18 made of a metal plate. Is made into one unit component. The heater holder 15 includes a tubular body 20 fitted externally to the motor 12 adjacent to the front end of the motor holder 11, and six insulating plates 21 fitted radially along the peripheral surface of the tubular body 20. It consists of.
[0033]
3 and 4, the cylindrical body 20 is formed of a cylindrical plastic molded product having open front and rear surfaces, and is formed of a plastic material excellent in heat insulation and electrical insulation, for example, polyphenylene sulfide. A mounting groove 22 for mounting the insulating plate 21 protrudes from the front end to the rear end of the peripheral surface of the cylindrical body 20, and a claw receiving hole 23 for engaging and supporting the insulating plate 21 at the rear end of the mounting groove 22. Are formed to protrude in a gate shape. A step portion 24 for engaging and supporting the insulating plate 21 is formed in a circular shape on the inner surface of the front end of the cylindrical body 20, and a ring-shaped partition wall 25 is formed bulging at a middle portion of the cylindrical inner surface. (See FIG. 3).
[0034]
The insulating plate 21 is formed by pressing a powdered mica into a plate shape and then punching it into a predetermined shape. A cutout recess 28 for winding the heater 16 is cut out around its outer edge, and the inner edge is cut out. A mounting edge 29 to be inserted and mounted in the mounting groove 22 is provided. A first claw piece 30 engaging with the step portion 24 and a second claw piece 31 engaging with the claw receiving hole 23 are formed before and after the mounting edge 29. The front and rear length of the insulating plate 21 is formed larger than the front and rear length of the cylindrical body 20. The reason will be described later.
[0035]
As shown in FIG. 3, when the mounting edge 29 of the insulating plate 21 is inserted into the mounting groove 22 of the cylindrical body 20 from the front end side, the second claw is engaged with the mounting edge 29 by press-fitting into the mounting groove 22. The piece 31 can be press-fitted into the claw receiving hole 23, and the first claw piece 30 can be press-fitted into the step 24. As described above, when the insulating plate 21 assembled to the cylindrical body 20 is engaged and held by the mounting groove 22, the claw receiving hole 23, and the step portion 24, the insulating plate 21 can be firmly erected and fixed. The distance between adjacent plates 21 can be made constant. Further, the insulating plate 21 can be easily assembled to the cylindrical body 20 with a small amount of labor.
[0036]
The front part of the insulating plate 21 assembled to the cylindrical body 20 projects forward from the front end of the cylindrical body 20, and when the heater holder 15 is installed in the main body case 1, the front end of the insulating plate 21 is It has reached the vicinity. The second claw piece 31 has passed through the claw receiving hole 23 and slightly protrudes from the rear end of the cylindrical body 20.
[0037]
An ion generator is provided inside the main body case 1 in order to blow negative ions to the hair together with the air flow generated by the fan 13. In FIG. 7, the ion generator includes a rectifier circuit 33 for half-wave rectifying a current supplied from a commercial power supply (100 V), a pulse generating circuit 34 for converting the rectified current to a pulse current, and a pulse current of 4 kV, for example. It comprises a transformer 35 for boosting the voltage to a high voltage, an electrode unit 36, a diode 37 provided between the transformer 35 and the electrode unit 36, and the like. The rectification circuit 33 and the pulse generation circuit 34 are incorporated on the same circuit board to form an ion generation circuit 38.
[0038]
Among the above electrical components, the transformer 35, the ion generation circuit 38, and the diode 37 are sealed as a single unit component in a cylindrical resin mold 39, and as described below, are formed as one unit component. Utilizing the inner space on the front side, it is fitted and mounted in the cylindrical body 20.
[0039]
7 and 8, the electrode unit 36 includes a plastic holder 41, a central electrode (discharge electrode) 42 fixed to the holder 41, and a ring-shaped peripheral electrode (ground electrode) 43 surrounding the central electrode 42. And a dielectric tube 44 that insulates and shuts off between the electrodes 42 and 43. The holder 41 integrally includes a central boss 45 and a holding ring 46 provided on the outer periphery of the boss 45. The peripheral electrode 43 is externally fitted and fixed to the outer surface of the boss 45, and the dielectric tube 44 is internally fitted and fixed to the front inner surface of the boss 45, so that the central electrode 42, the dielectric tube 44, and the peripheral electrode 43 are fixed. Are placed concentrically. The retaining ring 46 has a plurality of fan-shaped ventilation holes 47 formed therein.
[0040]
In order to position the electrode unit 36 at the center of the airflow generated by the fan 13, the electrode unit 36 is mounted on the electrode holder 51, and the electrode holder 51 is incorporated into the air guide case 1A together with the blowout grill 6. As shown in FIG. 9, the blowout grill 6 is made of a steel plate press formed by stamping and forming a concentric ring frame 6a and a radial frame 6b integrally, and is entirely chrome-plated. Positioning portions 49 are recessed on the left and right of the outermost ring frame 6a.
[0041]
The electrode holder 51 is made of a plastic molded product in which a central guard frame 52 and an outer ring frame 53 are connected by six partition walls 54, and a step for mounting the electrode unit 36 on the inner end of the partition wall 54. A portion 55 is formed. The electrode unit 36 is integrated with the electrode holder 51 by fitting the holding ring 46 into the step portion 55 and bonding them together. In this assembled state, the front end of the dielectric cylinder 44 of the electrode unit 36 faces the inner surface of the guard frame 52 of the electrode holder 51 via a small gap. On the left and right sides of the ring frame 53, positioning portions 56 similar to those of the blowout grill 6 are recessed, and holding pieces 57 for sandwiching and holding the previous insulating plate 21 on the inner surface side of the ring frame 53 are provided on each insulating plate 21. It is protruded corresponding to.
[0042]
The blowing grille 6 and the electrode holder 51 having the above-described configuration are loaded in the air guide case 1A, and the positioning portions 49 and 56 provided on the blow grill 6 and the electrode holder 51 are provided with positioning protrusions provided on the front inner surface of the wind guide case 1A. By engaging with 50 (refer to FIG. 9), each of blow-out grill 6 and electrode holder 51 can be fixed so that they cannot rotate relative to wind guide case 1A.
[0043]
According to the ion generator configured as described above, of the high voltage boosted by the transformer 35, only the negative voltage that has passed through the diode 22 is applied to the central electrode 26, so that the central electrode 26 is directed toward the peripheral electrode 27. Then, electrons are emitted to generate ion wind, and oxygen in the air can be negatively charged to be negatively ionized. Negative ions, which are formed by combining minute water with negatively charged oxygen, can penetrate water deep inside the hair, and improve the moisture content to optimize the condition of the hair while drying. The generated negative ions are blown forward from the blowout grill 6 together with the air passing through the wind guide case 1A. Since a part of the air flow described later passes through the ventilation hole 47, the negative ions floating around the electrode unit 36 can be forcibly supplied.
[0044]
When negative ions come into contact with the surface of the blowing grill 6 and the electrode holder 51 and become negatively charged, the charged negative charges and the negative ions repel each other, so that the amount of the negative ions emitted from the hair dryer decreases. In order to eliminate such negative charge, as shown in FIG. 2, a grounding piece 60 having conductivity is provided on the outer surface of the grip 3, and the blowing grill 6 and the grounding piece 60 are electrically connected via a conductive path. Thus, the negative charge charged to the blowout grill 6 and the electrode holder 51 can be grounded via the earth piece 60 and the human body. In addition, the negative charge charged on the human body can be released via a floor or a wall.
[0045]
The grounding piece 60 is made of a leaf-shaped plastic molded product that is long in the vertical direction, and has an entire surface covered with a plating layer to impart conductivity. The grounding piece 60 is fixed to a decorative cover 61 which is detachably engaged with the grip 3. The grounding piece 60 and the blowout grill 6 are electrically connected to each other through a heater cover 18 that contacts the blowout grille 6 and a lead wire 62 that connects the heater cover 18 and the grounding piece 60. For this purpose, as shown in FIG. 8, an L-shaped conductive terminal 63 is protruded from the lower edge of the front end of the heater cover 18, and the protruding end of the conductive terminal 63 is brought into close contact with the lower portion of the inner surface of the blowout grill 6 to electrically connect the terminals. Connected.
[0046]
When the outlet grill 6 is connected to the grounding piece 60 using the heater cover 18, the length of the lead wires 62 can be reduced by the amount that the lead wires 62 do not need to be wired in the air guide case 1A. Therefore, the labor for assembling the hair dryer can be saved.
[0047]
In a state where the ion generator, the heater unit, and the blower unit are assembled to the main body case 1, the cylindrical body 20 is supported along the central axis of the ventilation section E <b> 2, and between the cylindrical body 20 and the main body case 1. Specifically, a cylindrical air passage S is defined between the cylindrical body 20 and the insulating cover 17.
[0048]
The ventilation passage S is formed so as to occupy more than a majority of the ventilation part E2 from the rear end to the front end of the cylindrical body 20, and is insulated while most of the heater 16 faces the peripheral surface of the cylindrical body 20. It is wrapped around the plate 21. That is, the air flow supplied from the fan 13 is guided by the insulating cover 17, the cylindrical body 20, and the insulating plate 21 so that the heating of the air flow by the heater 16 in the air passage S can be stabilized. .
[0049]
In the above assembled state, the rectifying vanes 72 of the motor holder 11, the insulating plate 21, and the partition walls 54 of the electrode holder 51 are continuous in the front-rear direction and partition the inside of the ventilation part E <b> 2 into six partitions. . Therefore, most of the airflow flowing through each section is blown out through the blowout grill 6, and there is no room to flow into the adjacent section. As described above, in order to guide the air flow supplied from the fan 12 to the vicinity of the blowout grill 6, the front and rear length of the insulating plate 21 is set to be sufficiently larger than the front and rear length of the cylindrical body 20.
[0050]
In the above assembled state, the front edge of the protruding end of the insulating plate 21 is sandwiched and held by the holding pieces 57 provided on the electrode holder 51 (see FIGS. 8 and 10). Further, the second claw piece 31 provided on the rear end of the insulating plate 21 is engaged and captured by a hook 76 provided on the motor holder 11 (see FIG. 5). Therefore, the heater unit is fixed to the main body case 1 so as not to rotate relative thereto. In addition, since the front and rear of the insulating plate 21 are held and fixed by the holding piece 57 and the latching portion 76 so as not to be tilted, the insulating plate 21 does not shift even if it receives a drop impact, and the insulating plate 21 does not move. The adjacent interval can always be maintained in an appropriate state.
[0051]
As shown in FIG. 1, a guide space indicated by reference numeral L is provided between the holding ring 46 of the electrode unit 36 and the cylindrical body 20. By providing the guide space L, a part of the airflow flowing through the air passage S is flow-guided to the rear surface side of the electrode unit 36, and flows forward from the ventilation hole 47 provided in the holding ring 46. New air can be constantly supplied to the peripheral portion of the fuel cell 36, and negative ions generated by the electrode unit 36 can be blown out from the guard frame 52 and supplied.
[0052]
As described above, the electrode unit 36 is supported by the electrode holder 51 and is located at the center of the ventilation section E1. Therefore, the air flow circulated from the air passage S flows uniformly into the electrode unit 36, and the negative ions floating around the electrode unit 36 are blown out from the guard frame 52. At this time, the air flow containing negative ions is wrapped by the air flow blown straight through the cylindrical air passage S. In other words, the dry air can be supplied in a state where the air flow that has traveled straight through the air passage S forms an air curtain, and the diffusion of the air flow containing negative ions is restricted. Therefore, the hair can be dried while allowing negative ions to act on the hair efficiently.
[0053]
As shown in FIG. 2, when drying the hair with the nozzle 2 attached to the outlet of the main body case 1, the airflow containing negative ions is sent out toward the inner cylinder 2 a of the nozzle 2. Further, the airflow that has traveled straight through the air passage S is converged in an elliptical cross section while traveling straight outside the inner cylinder 2a of the nozzle 2, and is accelerated. Therefore, the air flow containing the negative ions is supplied in a state surrounded by the air flow having a large flow velocity that goes straight outside the inner cylinder 2a. In other words, since the air curtain function can be more effectively exerted by the converged and accelerated air flow, the air flow including the negative ions is surely prevented from diffusing, and the amount of the negative ions reaching the hair is further reduced. Can increase.
[0054]
In addition to the above embodiment, the motor holder 11 and the cylindrical body 20 can be integrally formed. The heater holder 15 can be composed of a cylindrical body 20 and four or more arbitrary number of insulating plates 21. The insulating plate 21 can be inserted into and engaged with the cylindrical body 20 from the rear side to the front side. The holder 41 and the electrode holder 51 can be formed integrally. The cylindrical body 20 can be extended to the vicinity of the blowout grill 6 to accommodate the electrode unit 36 therein. In that case, a hole for introducing new air is formed in the peripheral wall of the cylindrical body 20 so that new air can be supplied to the electrode unit 36.
[Brief description of the drawings]
FIG. 1 is a vertical sectional side view of a main body case.
FIG. 2 is a vertical sectional side view of the hair dryer.
FIG. 3 is an exploded sectional view of a heater holder and a blowing unit.
FIG. 4 is an exploded perspective view of a heater holder and a motor holder.
FIG. 5 is a sectional view taken along line AA in FIG. 1;
FIG. 6 is an exploded sectional view of the heater unit.
FIG. 7 is an explanatory view schematically showing a ground structure.
FIG. 8 is a sectional view of the ion generator.
FIG. 9 is an exploded perspective view of an electrode holder and a blowing grill.
FIG. 10 is a sectional view taken along line BB in FIG. 1;
[Explanation of symbols]
1 Body case
6 blowout grill
11 Motor holder
12 motor
13 fans
15 Heater holder
16 heater
20 cylinder
21 Insulating plate
22 mounting groove
23 Claw receiving hole
29 Insulation board mounting edge
30 1st nail piece
31 2nd nail piece
35 transformer
36 electrode unit
38 Ion generation circuit
39 resin mold
51 Electrode holder
57 Holding piece
76 Hook
E1 Windbreak
E2 ventilation section
S Ventilation passage
L Guide space

Claims (8)

A draft unit E1 and a ventilation unit E2 are provided adjacent to each other inside the cylindrical main body case 1,
A fan 13 for blowing air is housed in the draft part E1,
The ventilation unit E2 contains a motor 12 for driving the fan, a heater 16 for heating the air, and a heater holder 15 for supporting the heater 16, respectively.
The heater holder 15 is mounted radially on the peripheral surface of the cylindrical body 20 disposed along the central axis of the ventilation section E2, and a ventilation passage between the cylindrical body 20 and the main body case 1. An insulating plate 21 for dividing S in the circumferential direction,
A hair dryer in which the heater 16 is wound around the insulating plate 21 so as to face the peripheral surface of the cylindrical body 20. The ventilation passage S is provided so as to occupy most of the front-rear length of the ventilation section E2,
The hair dryer according to claim 1, wherein the insulating plate (21) is provided from the peripheral surface of the cylindrical body (20) to the vicinity of the blow grill (6). Along the peripheral surface of the cylindrical body 20, mounting grooves 22 for inserting and mounting the insulating plate 21 are formed at regular intervals,
A first claw piece 30 and a second claw piece 31 are provided before and after a mounting edge 29 of the insulating plate 21 that engages with the mounting groove 22.
When the mounting edge 29 of the insulating plate 21 is mounted in the mounting groove 22, the first claw 30 engages with the opening edge of the cylinder 20, and at the same time, the second claw 31 protrudes from the peripheral surface of the cylinder 20. The hair dryer according to claim 1, wherein the hair dryer engages with the formed claw receiving hole 23. The cylinder 20 and the motor holder 11 supporting the motor 12 are arranged adjacent to each other, and the motor 12 is housed inside the cylinder 20.
The protruding end of the second claw piece 31 that engages with the claw receiving hole 23 engages with a hook 76 provided on the motor holder 11, so that the insulating plate 21 and the cylindrical body 20 cannot rotate with respect to the main body case 1. The hair dryer according to claim 3, which is fixed. The electrode unit 36 of the ion generator is supported by an electrode holder 51 fixed to the main body case 1,
5. The hair dryer according to claim 3, wherein a front end of the insulating plate is engaged and held by a holding piece provided on an inner surface side of the electrode holder. An ion generating device including an electrode unit 36, a transformer 35, and an ion generating circuit 38 is arranged inside the main body case 1,
An electrode unit 36 is disposed between the cylindrical body 20 and the blow grill 6,
6. The hair dryer according to claim 4, wherein at least the transformer 35 of the transformer 35 and the ion generation circuit 38 is housed inside the cylinder 20 in a state adjacent to the motor 12. The hair dryer according to claim 6, wherein a guide space (L) is formed between the electrode unit (36) and the cylindrical body (20) to guide a part of the air flow moving along the air passage (S) toward the electrode unit (36). . The transformer 35 and the ion generation circuit 38 of the ion generator are enclosed in a resin mold 39 to form one unit part.
The hair dryer according to claim 6, wherein the resin mold (39) is housed inside the cylindrical body (20).

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