JP2013081643A - Heating and blowing apparatus - Google Patents

Abstract

A heating blower capable of improving the appearance quality of a main body is provided.
A heating blower that displays a state using a light emitting diode that emits light, and includes a light shielding layer that selectively blocks light from the light emitting diode and a half mirror layer that reflects external light. The layer is disposed at a position facing the light emitting diode.
[Selection] Figure 8

Description

  The present invention relates to a heated air blower such as a hair dryer.

  In recent years, a heating and blowing apparatus generally has a function of adjusting an air temperature, an air volume, and the like. As a means for displaying the state of the air temperature, the amount of air, etc., a means of installing a display window in which each state is printed in the vicinity of the changeover switch or displaying the LED lighting in accordance with each state is common. (See Patent Document 1).

JP-A-60-29104

  However, according to the prior art, there is a problem that the appearance quality of the main body is greatly deteriorated because the state display becomes conspicuous regardless of whether the heating air blower is turned on or off.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a heated air blower capable of improving the appearance quality of the main body.

  The present invention is a heating and blowing device that displays a state using a light emitting unit that emits light, and includes two layers of a light shielding unit that selectively blocks light from the light emitting unit and a reflection unit that reflects external light. It arrange | positions in the position facing the said light emission part, It is characterized by the above-mentioned.

  In the present invention, a protrusion may be provided at a position facing the light emitting portion on the back surface of the display panel, and two layers of the reflection portion and the light shielding portion may be disposed on the upper surface of the protrusion.

  In the present invention, the upper surface of the protrusion may be a flat surface.

  In the present invention, the protrusion shape of the protrusion portion may be the same shape as the display content represented by the light shielding portion.

  According to the present invention, since the two layers of the light-shielding part that selectively shields the light from the light-emitting part and the reflection part that reflects external light are arranged at a position facing the light-emitting part, the appearance quality of the main body is improved. It becomes possible to provide the heating air blower which can be made to do.

FIG. 1 is a side view of a hair dryer according to the present embodiment. FIG. 2 is a perspective view of the hair dryer according to the present embodiment. FIG. 3 is a front view of the hair dryer according to the present embodiment. FIG. 4 is a rear view of the hair dryer according to the present embodiment. FIG. 5 is a cross-sectional view of the hair dryer according to the present embodiment. FIG. 6 is a cross-sectional view of the hair dryer according to the present embodiment. FIG. 7 is an internal configuration diagram of the hair dryer according to the present embodiment. FIG. 8 is a configuration diagram of a display unit of the hair dryer according to the present embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1-4 is a block diagram of the hair dryer 1 concerning this embodiment, FIG. 1 is a side view, FIG. 2 is a perspective view, FIG. 3 is a front view, FIG. 4 is a rear view. As shown in these drawings, a suction port 15 is provided on the rear end surface of the cylindrical main body portion 10 and a discharge port 16 is provided on the front end surface thereof, and a grip portion 11 is connected to a lower portion near the rear end of the main body portion 10. On the front surface of the grip portion 11, a switch 17 for switching air flow is disposed, and a power cord 18 is drawn from the lower end of the grip portion 11. The grip portion 11 is rotatable with respect to the main body portion 10 about the shaft 19 shown in FIG. 5 and is folded from the use state position shown in FIG. 1 to a storage position along the front lower surface of the main body portion 10. It has become something that can be.

  As for the main-body part 10, an outer shell is comprised by the housing 12 and the front cover 13 divided into right and left, and the ventilation block is incorporated in the inside. As shown in FIG. 5, the air blowing block includes a motor base 20 having a cylindrical shape made of synthetic resin and having rectifying blades, a first wind tunnel 21 connected to the front side of the motor base 20, and a first wind tunnel 21. Furthermore, the 2nd wind tunnel 22 located in the front side is provided. A motor 25 including a fan 26 is installed in the motor base 20, and a power supply board 30 and a control board 31 are disposed on the outer surfaces of the motor base 20 and the first wind tunnel 21.

  A heater 35 made of a strip-like and corrugated plate-like electric resistor is disposed in the tapered second wind tunnel 22 whose tip end is narrowed and assembled to the substrate 24 assembled in a cross-shaped cross section. As shown in FIG. 6, an ion generator 36 that generates metal fine particle ions (for example, platinum ions) and a mist generator 37 that generates mist are disposed on the outer surface of the second wind tunnel 22. In addition, the code | symbol 81 in a figure is a frame, and the code | symbol 82 is a mesh.

  As shown in FIG. 2, the front cover 13 in the main body 10 includes metal fine particle ions discharged from the ion generator 36 and discharge openings 132 and 133 for mist discharged from the mist generator 37. Moreover, the cylindrical part 134 surrounding the discharge port 16 at the front-end | tip of the main-body part 10 is provided, and it connects with the housing 12 by latching the hook part 131 which protrudes back on the housing 12 inner surface. Furthermore, the cylindrical part 134 in the front cover 13 has a true circular inner peripheral surface, and includes a rib 135 along the inner periphery.

  Here, the main air passage from the suction port 15 to the discharge port 16 is formed by the motor base 20, the first wind tunnel 21, the second wind tunnel 22, and the rectifying cylinder 23 connected to the tip of the second wind tunnel 22 in the blower block. Is formed. When the heater 35 is energized when passing through the second wind tunnel 22, the air blown by the fan 26 driven by the motor 25 is heated by the heater 35 and discharged from the discharge port 16 through the rectifying cylinder 23 as warm air. The

  In addition, as shown in FIG. 5, the outer diameter of the rear end of the second wind tunnel 22 is smaller than the diameter of the front opening of the first wind tunnel 21, and a ring-shaped opening 29 is opened between the two. A part of the air blown by the fan 26 driven by the motor 25 passes through a gap between the air blowing block 2 and the inner surface of the housing 10 through the ring-shaped opening 29, and the inner surface of the cylindrical portion 134 of the front cover 13 and the flow straightening tube 23. It discharges from the ring-shaped discharge port 38 formed as the space | gap between. Since the air discharged from the ring-shaped discharge port 38 does not come into contact with the heater 35, it is discharged as cold air surrounding the hot air discharged through the rectifying cylinder 23. A further part of the wind passing through the ring-shaped opening 29 assists in discharging the metal fine particle ions and mist from the discharge openings 132 and 133.

  A switch 17 that slides up and down arranged in the center of the front surface of the grip portion 2 functions as an on / off main switch and also performs air volume switching. Further, a switch 6 for switching the air temperature, a display unit 7 for displaying the air temperature, and an operation display lamp 138 are arranged on the side surface of the main body 10. These switches 6 and 17 and the display unit 7 are electrically connected to a microcomputer on the control board 31.

  In the present embodiment, four air temperature states of “HOT”, “warm / cool”, “COLD”, and “SCALP” will be described as an example. “HOT” is a mode for outputting warm air. The “warm / cool” is a mode in which warm air and cold air are alternately output, for example, cool air 5 seconds and warm air 7 seconds. “COLD” is a mode for outputting cold air. “SCALP” is a mode for outputting low-temperature air. When the power of the main body is turned on, the microcomputer is energized, the heater 35 is driven by a drive signal corresponding to the current air temperature mode, and the air temperature display on the display unit 7 displays the current air temperature mode. Is controlled. Each time the switch 6 is pressed, a pressing signal is sent to the microcomputer so that the four air temperature states are switched in order.

  In this hair dryer 1, as shown in FIG. 7, a switching element (thyristor) T is used for air temperature control, but cooling of the switching element T that is a cooling member is generated by driving the fan 26. Cold air is used. That is, the switching element T is mounted on the control board 31, and the heat radiating portion 66 in the switching element T is disposed on the outer periphery of the second wind tunnel 22 and in front of the ring-shaped opening 29. Further, the heat radiating plate 67 is screwed and fixed to the heat radiating portion 66 of the switching element T, and the heat radiating plate 67 is disposed in front of the ring-shaped opening 29 and is located in front of the ring-shaped opening 29 from both side edges of the heat radiating plate 67. The cooling efficiency is enhanced by extending the heat sink 67 to the U-shaped 67a.

  If the switching element T that generates heat when energized is not cooled, it is necessary to cool it in order to cause thermal runaway. In this cooling, it is preferable to use the wind generated by the fan 26. However, if the switching element T is installed on the upstream side of the heater 35 in the main air passage from the fan 26 to the discharge port 16, the longitudinal dimension of the main body 10 is increased by the installation area of the switching element T. Moreover, it becomes a ventilation resistance and causes a reduction in air volume. Therefore, the switching element T and / or the heat dissipation plate 67 coupled to the switching element T is installed on the sub-air passage extending from the ring-shaped opening 29 to the ring-shaped discharge port 38 on the outer peripheral side of the main air passage. Thereby, increase of a full length and reduction of increase in ventilation resistance can be aimed at.

  The reason why the longitudinal direction of the switching element T is aligned with the longitudinal direction of the main body portion 10 and the heat radiating portion 66 is positioned on the downstream side of the wind is to minimize the increase in the outer diameter of the main body portion 10 and It is for cooling in the flow of. Further, the cooling efficiency is enhanced by allowing the cool air to flow along the heat radiating portion 66, the heat radiating plate 67, and the heat radiating plate 67 having the U-shaped 67a that widens the heat radiating area. Here, the switching element T for controlling the air temperature has been described. However, it is preferable that cooling is performed in the same manner when the switching element is used for air volume control.

  Hereinafter, the configuration of the display unit 7 will be described in more detail.

  FIG. 8 is a configuration diagram of the display unit 7 according to the present embodiment, in which (A) is a front view, (B) is a rear view, and (C) is a cross-sectional view. The display unit 7 displays four air temperature states of “HOT”, “warm / cool”, “COLD”, and “SCALP”, and includes a chip-type light-emitting diode mounted on the control board 31 and a light-emitting diode. It comprises a white or milky white diffuser that diffuses light and a display panel 73 made of a transparent resin. The display panel 73 may be formed separately from the housing 12 and fixed to the housing 12 with a double-sided adhesive tape, or may be formed integrally with the housing 12. As shown in FIG. 8C, a half mirror layer 7B that reflects external light is provided on the back surface 7A of the display panel 73 by printing or transfer. Further, a light shielding layer 7C for selectively shielding light from the light emitting diode is provided on the surface of the upper surface of the half mirror layer 7B facing the light emitting diode by printing or painting. “Selectively shield light” means that a specific area (for example, an area other than the character part) is shielded so that characters such as air temperature display “HOT”, “warm / cool”, “COLD”, and “SCALP” appear. Meaning.

  In the power-off state, since the light emitting diode is not emitting light, the inside of the hair dryer 1 is dark. Therefore, even if the outside of the hair dryer 1 is bright, the external light is reflected by the half mirror layer 7B, so that the internal components and the air temperature display can be made difficult to see. When the power is turned on, the light emitting diode emits light, and the light is transmitted to the outside through the light shielding layer 7C and the half mirror layer 7B. At this time, since regions other than the character portion are shielded by the light shielding layer 7C, the air temperature display character appears outside.

  Here, as shown in FIG. 8C, a protrusion 7D is provided at a position facing the light emitting diode on the back surface 7A of the display panel 73, and a half mirror layer 7B and a light shielding layer 7C are provided on the upper surface of the protrusion 7D. Layers may be placed. Thereby, the half mirror layer 7B can be efficiently printed or transferred. In addition, if the upper surface of the protrusion 7D is formed to be a flat surface, it is possible to avoid the problem that the printed content is distorted or cannot be partially printed, so that the half mirror layer 7B can be printed or transferred more efficiently. Is possible. Although not shown here, the protrusion shape of the protrusion 7D may be the same as the display content represented by the light shielding layer 7C. That is, when the light shielding layer 7C shields light from a region other than the character portion, the region other than the character portion is formed in a protruding shape. In this way, the display content is further enhanced.

  Note that the diffusion plate and the light-emitting diodes fixed to the control board 31 by hooks are separately provided according to the air temperature indications “HOT”, “warm / cool”, “COLD”, and “SCALP”. Each light emitting diode emits a different color depending on the corresponding display content.

  The air temperature display content provided on the back surface of the display panel 73 is formed as white letters and has a different background color depending on the portion of each display content. In this way, characters clearly appear at the time of light emission, and it is possible to recognize which position is what content by the difference in background color even at the time of non-light emission.

  The printing color of the display unit 7 may be changed according to the color of the main body unit 10. However, in the case of white, pink, gold, etc., it is not possible to sufficiently shield the light with single color printing, so after printing with the printing color for appearance, use an ink material with a high blending ratio of metal powder for shading. It is better to print with the silver-based printing color.

  As described above, according to the hair dryer 1 according to the present embodiment, the two layers of the light shielding layer 7C that selectively shields the light from the light emitting diode and the half mirror layer 7B that reflects the external light are opposed to the light emitting diode. Since it arrange | positions in the position, the external appearance quality of a main body can be improved. That is, in the power-off state, external light is reflected by the half mirror layer 7B, so that the internal components and the air temperature display can be made difficult to see by the half mirror layer 7B. On the other hand, in the power-on state, the light from the light emitting diode passes through the light shielding layer 7C and the half mirror layer 7B and is radiated to the outside.

  Moreover, in the hair dryer 1 concerning this embodiment, the projection part 7D is provided in the position facing the light emitting diode of the back surface 7A of the display panel 73, and two layers of the half mirror layer 7B and the light shielding layer 7C are provided on the upper surface of the projection part 7D. Is arranged. Thereby, the half mirror layer 7B can be efficiently printed or transferred.

  Moreover, in the hair dryer 1 concerning this embodiment, the upper surface of projection part 7D is formed in the plane. As a result, it is possible to avoid the problem that the printed content is distorted or partially cannot be printed, so that the half mirror layer 7B can be printed or transferred more efficiently.

  Moreover, in the hair dryer 1 concerning this embodiment, the protrusion shape of protrusion part 7D is made into the same shape as the display content represented by 7 C of light shielding layers. Thereby, there is an effect that the display content is further emphasized.

  In addition, although preferred embodiment was described above, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, although the display unit 7 is provided on the side surface of the main body unit 10 here, the location of the display unit 7 is not limited to this. The display unit 7 displays the air temperature, but it is needless to say that the air volume may be displayed.

1 Hair dryer (heating air blower)
73 Display panel 7A Back surface of protrusion 7B Half mirror layer (reflection part)
7C Shading layer (shading part)
7D protrusion

Claims (4)

A heating blower that displays a state using a light emitting unit that emits light,
A heating blower characterized in that two layers of a light-shielding part that selectively shields light from the light-emitting part and a reflection part that reflects external light are arranged at a position facing the light-emitting part.   The heating blower according to claim 1, wherein a projection is provided at a position opposite to the light emitting unit on the back surface of the display panel, and two layers of the reflection unit and the light shielding unit are disposed on an upper surface of the projection. .   The heating air blower according to claim 2, wherein an upper surface of the protrusion is a flat surface.   The heating air blower according to claim 2 or 3, wherein the protruding shape of the protruding portion has the same shape as the display content represented by the light shielding portion.

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