JPS6311884B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a hair dryer having a hair curling section.

[Background technology]

Generally, a hair dryer equipped with a hair curling section that performs brushing and curling has a large heater and air blower, so the air blower and heater are installed side by side in the axial direction inside the main body, which is the grip section. Ta. As a result, there was a problem that the grip portion became long, making it difficult to use. In order to solve this problem, it has been proposed to have a heater in the hair curling section (Japanese Patent Publication No. 8605/1986). However, it has the disadvantage that hot air discharge efficiency is poor and hair cannot be effectively curled. This is because the PTC heater has a narrow and long air blowing path, so the loss within the air blowing path is large. Furthermore, conventional hair dryers have the problem that the heater element tends to be insufficiently supported because it is moved violently.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a hair dryer that is small and easy to use, can efficiently dry and curl hair, and can stably support a heater element.

[Disclosure of the Invention] The hair dryer of the present invention has a grip portion having a suction port and a hair curling portion having a hot air discharge port and an air flow path formed therein. A heater block having an opening formed therein and a heater element disposed in the opening so as to protrude from the surface of the substrate is disposed in the middle of the air passage of the hair curling section, and facing the opening of the substrate. Forms a hot air outlet,
A plurality of protrusions are protruded from two opposing sides of the opening of the substrate at predetermined intervals, and the heater element has a double helical shape in which a coiled heating wire is further coiled. Fitting each heating wire loop, which is one round of the coiled heating wire, between adjacent protrusions of the opening of the substrate,
The protruding piece is sandwiched in the thickness direction by wire loops forming the heating wire loop.

Because the heater block is placed in the middle of the air passage, air flows above and below it and touches the heater element.Also, because the heater element is placed in the opening of the board that serves as the air passage, air also passes through that opening and touches the heater element. touch. Therefore, heat exchange efficiency is good and hair can be styled effectively. In addition, since the heater block is placed in the hair curling section, the grip section is short and easy to use. Moreover, the heater has a double spiral shape, and the heating wire loop is fitted between the protruding pieces of the board, and the protruding pieces are sandwiched between the element wire loops, so that the heater element is positioned in each three-dimensional direction. The heater element can be stably held, and the installation work of the heater element is easy.

Embodiment An embodiment of the present invention is shown in FIGS. 1 to 6. In the figure, reference numeral 3 denotes a main body case, which consists of a grip body 3a and a hair curling body 3b detachably attached to the tip thereof. A suction port 4 is provided in the grip main body 3a, and a motor 6 to which a fan 5 is attached is housed. The inside of the straightening section main body 3b serves as a ventilation path 10, and a heater block 7 is housed therein. Curling part body 3
b has a discharge port 9 in the wall portion where the bristle 8 is provided, and has an auxiliary discharge port 9' near the grip body 3a.

The heater block 7 consists of a rectangular flat substrate 12 and a heater element 13. The peripheral edge of the board 12 is fixed to mounting bases 14 and 15 provided on the skewer main body 3b with screws 16, and the air passage 10 is partitioned into the outlet 9 side and the opposite side. Board 1
2 is provided with a pair of openings 11 that are parallel to each other and serve as air passages. The heater element 13 is in the form of a double coil formed by further forming a coiled resistance heating wire into a spiral shape, and is bent into a U-shape to connect both openings 1 of the substrate 12.
It is stored in 1. The heater elements 13 protrude from both sides of the substrate 12. Bent portion 13 of heater element 13
c is fitted into a notch 18 provided in one opening 11 of the substrate 12. 17 is a lead wire.
A ventilation hole 19 and a thermoswitch mounting hole 20 are provided in a central crosspiece portion 12a formed between both openings 11 of the substrate 12, and a thermoswitch 21 is mounted in the thermoswitch mounting hole 20. Board 1
A protrusion 22 for supporting the heater element 13 at the spiral pitch of the heater element 13 is provided in the opening 11 of the heater element 2 . The projecting piece 22 is formed into a trapezoid and has a pair of inclined sides 22a (FIGS. 5 and 6). The heater element 13 has each heating wire loop 13a fitted between adjacent projecting pieces 22, and each heating wire loop 13a is fitted between adjacent projecting pieces 22.
The protruding piece 22 is sandwiched in the thickness direction by the wire loops 13b forming the element a. 13b' indicates a sandwich portion. As a result, the heater element 13 is placed 3 times relative to the substrate 12.
Positioned with respect to each direction of the dimension.

With this configuration, the following advantages can be obtained. Since the heater element 13 has a double coil shape,
It can be constructed with much higher density than conventional heaters, and the length l can be shortened to ensure a high wattage. Furthermore, since the heater element 13 is folded back in a U-shape, it becomes even more compact. Further, since the opening 11 is provided in the substrate 12 and the heater element 13 is housed therein to form the heater block 7, the configuration of the heater block 7 is simple and the heat exchange efficiency is high. That is, since the entire heater element 13 is located within the opening 11 serving as the air path of the substrate 12 and protrudes from the substrate 12, the entire heater element 13 is exposed to air, resulting in good heat exchange efficiency. Further, since the heater block 7 is disposed in the middle of the air passage 10 in the vertical direction, the substrate 1 of the heater block 7
Air passes through all of the upper and lower portions 2 and the opening 11, further improving heat exchange efficiency. Since the periphery of the substrate 12 is fixed to the main body case 3, the heater element 13 is not disturbed by wind, which also improves heat exchange efficiency. Because of this high heat exchange efficiency, hair can be styled effectively.

Since the heater block 7 is housed within the shading section main body 3b, the space within the shading section main body 3b, which has conventionally been a dead space, can be effectively utilized. Therefore, there is no need to provide a space for arranging the heater in the shaping part main body 3b, and
can be shortened, and the overall shape of the hair dryer can be made smaller. Therefore, it is easy to use. In the case of a conventional heater block in which a heater coil is wound around a cross-shaped substrate, it cannot be placed near the discharge port in order to allow air to pass through, but it must be placed in the grip. In the invention, since the heater block 7 in which the heater element 13 is housed in the opening 11 of the substrate 12 is used, heat exchange is not possible even if the heater block 7 is placed inside the curved part main body 3b having the discharge port 9 on the peripheral wall surface. This made it possible to obtain a structure in which the heater block 7 is disposed on the shading portion main body 3b.

Further, a protruding piece 22 is provided on the substrate 12 at the spiral pitch of the heater element 13, and the heating wire loop 13a of the heater element 13 is fitted between the protruding pieces 22, so that an insulation distance between the heating wire loops 13a is ensured. be done. Moreover, since the protruding piece 22 is sandwiched in the thickness direction by the wire loop 13b forming the heating wire loop 13a, floating of the heater element 13 is prevented.

Note that the heater element 13 may be simply press-fitted into the opening 11 of the substrate 12 without providing the protruding piece 22 on the substrate 12. Even in that case, there is an effect that the heater element 13 can be easily attached.

FIG. 7 shows another embodiment. In this example, the substrate 12 of the heater block 7 is tilted so that the tip side of the air passage 10 is away from the discharge port 9. In the first embodiment, the wind speed is slower and the air volume is smaller toward the outlet 9 on the proximal end side of the skewing section main body 3b, but in this embodiment, since it is inclined,
The closer the position is to the fan 5, the smaller the air blowing resistance becomes, and the air emitted from each outlet 9 becomes more uniform. Therefore, it is easy to set the hair. Others are 1st
This is similar to the embodiment.

FIG. 8 shows yet another embodiment. This example:
The diameter of the spiral winding of the heater element 13' is
The diameter becomes larger toward the tip of b.
Even with this configuration, the air volume of each discharge port 9 is constant. The rest is the same as the first embodiment.

〔Effect of the invention〕

The hair dryer of the present invention is small and easy to use, and can efficiently dry and curl hair. In particular, since the heater element is arranged in the opening of the substrate, wind easily hits the heater element, resulting in good heat exchange efficiency. Moreover, the heater element has a double helical shape and is fitted between the protrusions of the board, and the protrusions are sandwiched between the wire loops, so the heater element is stably held in position in each three-dimensional direction. This also has the effect of simplifying the installation work of the heater element.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is a perspective view of the heater block, FIG. 4 is an exploded perspective view of the heater block, and FIG. 6 is a partially enlarged plan view of the heater block, FIG. 6 is an explanatory diagram showing the relationship between the heater element and the protruding piece of the substrate, FIG. 7 is a sectional view of another embodiment, and FIG. 8 is a further diagram of another embodiment. FIG. 3... Main body case, 3a... Grip body, 3b
...Cutting part main body, 4...Suction port, 5...Fan, 6
...Motor, 7...Heater block, 9...Discharge port,
9'... Auxiliary discharge port, 10... Air duct, 11... Opening,
12...Substrate, 13, 13'...Heater element, 22...
protrusion.

Claims (1)

[Scope of Claims] 1. In a hair dryer having a grip part having a suction port and a hair curling part having a hot air discharge port and an air passage formed therein, an opening serving as an air passage is formed in a flat substrate. A heater block having a heater element protruding from the surface of the substrate in the opening is disposed in the middle of the air passage of the hair styling section, and a hot air outlet is provided facing the opening of the substrate. a plurality of protrusions are provided at predetermined intervals on two opposing sides of the opening of the substrate, and the heater element has a double helical shape in which a coiled heating wire is further coiled; In this heater element, each heating wire loop, which is one round of the coiled heating wire, is fitted between adjacent protrusions of the opening of the substrate, and the element wire loops forming the heating wire loop are A hair dryer in which the protruding pieces are sandwiched in the thickness direction. 2. The hair dryer according to claim 1, wherein an auxiliary outlet is provided between the grip portion and the hair curling portion. 3. The hair dryer according to claim 1, wherein the periphery of the substrate is fixed to a main body forming the hair curling section. 4. The hair dryer according to claim 1, wherein the heater board is inclined in such a direction that the downstream side of the air passage is away from the heat medium discharge port. 5. The hair dryer according to claim 1, wherein the helical diameter of the heater element is increased toward the downstream side of the air passage.