JPS63183002A - Hair dryer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a hair dryer in which various attachments such as a brush and a hair curling iron are selectively used.

(Prior art) Conventionally, in a hair dryer that uses multiple attachments depending on the purpose of hair styling, hair curling, etc., a temperature sensor that detects the hot air temperature is installed at the hot air outlet inside the hair dryer body. The heater is controlled based on the temperature signal from the sensor to automatically control the temperature. However, the actual temperature of the warm air blown out from the hot air outlet of each attachment varies depending on the placement of the hot air outlet of each attachment, the total opening amount, and the amount of hair that comes into contact with the attachment, and the temperature is different depending on the attachment. Although the hot air temperature differs depending on the attachment (use), according to conventional hair dryers, the temperature of the hot air inside the main body is detected by the same temperature sensor regardless of the type of attachment. As a result, temperature control is inaccurate and cannot be adapted to each attachment.

(Objective of the Invention) Therefore, the present invention provides a hair dryer that can perform optimal and accurate temperature control for each attachment.

(Structure of the Invention) The present invention has a structure in which an attachment such as a brush equipped with a hot air outlet is detachably attached to a hair dryer main body that has a built-in hot air generation block and a control block that controls the hot air generation block. In the hair dryer, the attachment is provided with a temperature sensor for sending a temperature signal to the control block, and a connection terminal for electrically connecting the temperature sensor to the control block.

With this configuration, temperature control suitable for each attachment is performed based on the temperature directly detected by the attachment and by a separate temperature sensor for each attachment, resulting in no scales.

(Example) The first embodiment of the present invention is shown in FIGS. 1 to 6, the second embodiment is shown in FIGS. 7 and 8, the third embodiment is shown in FIGS. The fourth embodiment is shown in FIGS. 11 and 12, and the fifth embodiment is shown in FIG. 13. Each example will be described below.

1st embodiment (see Figures 1 to 6) In Figures 1 to 5, 1 is a hair dryer main body;
A is a hair styling attachment detachably attached to the main body 1.

The main body 1 includes a heater 4 in an elongated housing 3 having an air inlet (not shown) at one end and a hot air outlet 3a at the other end.
, a hot air generation block consisting of a motor, a fan, and a rectifying blade (not shown), and a control block for controlling this hot air generation block. Note that the circuit configurations of these two blocks will be explained later with reference to FIG.

The two attachments have a hollow main part 5, which has a fitting part 5a at the base end that can be fitted externally to the distal end of the main body 1 (the end on the side of the hot air outlet 3a), and has a large number of hair trimmers on one side of the hollow main part 5. Bristle 6・
...and a bristle stand 7 that holds this bristle 6...
and a cover 8 for fixing this bristle stand 7 to the main part 5. A large number of hot air outlets 9..., 10... are provided in the main portion 5 and the bristle stand 7, respectively.
The hot air blown into the attachment main part 5 from the hot air outlet 3a of the main body 1 is connected to the attachment from these hot air outlets 9..., 10... It is designed to be blown outside of 2A.

To explain the attachment/detachment structure of this attachment 2A to/from the main body 1, a bush button 11 is supported from inside by a spring 12 on a part of the circumferential wall at the tip of the main body 1, and is elastically retractable in and out of the main body. It is provided. A claw 11a is integrally connected to the bushing button 11 and protrudes outward from the tip of the main body. On the other hand, on the attachment 2A side, an engagement recess 13 is provided on the inner surface of the fitting part 5a of the main part 5.
When the fitting portion 5a of the button 11 is fitted into the tip of the main body, the claw 11a of the bushing button 11 elastically engages with the fitting recess 13, whereby the attachment 2A is fixed to the main body 1, and the bushing button 11 is fixed to the main body 1. By pressing 11 from the outside,
The claw 11a comes off the engagement recess 13 and the attachment 2A
is configured to be removable.

The attachment 2A also includes hot air outlets 9..., 10 that pass through the main part 5 and are provided at approximately the center of the main part 5.
A temperature sensor 14 capable of detecting the average temperature of hot air blown out from... is installed via a sensor mounting rib 15. A wiring board 16 has one end connected to the temperature sensor 14, and the other end of the wiring board 16 is connected to a connecting terminal 17a (hereinafter referred to as a terminal) 18a. The terminals 17a and 18a of this receiver are formed into a cylindrical shape with a slit and have spring properties, and are attached via a rib 19 with the open side thereof facing the base end opening of the main portion 5.

On the other hand, at the tip of the main body 1, the bones are connected to terminals 17a and 18.
A pair of pin terminals 17b and 18b corresponding to a are attached to the heater board 20 to which the heater 4 is attached, with their tip portions protruding outward from the tip of the main body, and the attachment 2A is attached to the main body 1 as described above. When installed,
These pin terminals 17b and 18b are connected to terminals 17a and 18a.
These terminals are electrically connected to each other by elastically fitting into (contacting) the terminals. Further, the bin terminals 17b, 18b are connected to the control block via lead wires 21.22.

In this way, when the attachment 2A is attached to the main body 1, the temperature sensor 14 inside the attachment 2A and the control block inside the main body 1 are electrically connected.

Next, the circuit configuration shown in FIG. 6 will be explained.

23 is the main switch, 24 is the rectifier, 25 is the motor,
26 is a voltage dividing resistor of this motor 25, 27 is a changeover switch that adjusts the divided voltage of this voltage dividing resistor 26, 28 is a coil, and 29 is a bidirectional three-terminal thyristor for controlling the heater 4 (
(hereinafter referred to as thyristor), 30 is this thyristor 29
A trigger element 31 connected to the gate electrode of the thyristor 29 is a time constant setting capacitor that turns on the thyristor 29 via the trigger element 30. The temperature sensor (PTC thermistor) 14 is connected in series with this capacitor 31, and when the hot air temperature exceeds the set temperature, the resistance value of the temperature sensor 14 increases and the charging current of the capacitor 31 decreases, so the thyristor 29 is turned off, and power supply to the heater 4 is cut off. Furthermore, when the attachment 2A is removed from the main body 1, the receivers on the two-person side of the attachment are the terminals 17a, 18a and the pin terminal 17b on the main body 1 side, as described above.

18b and the temperature sensor 14 is separated from the control block, the thyristor 29 is turned off and power to the heater 4 is cut off. That is, even if the main switch 23 is in the on state, the energizing circuit of the heater 4 is opened or released by attaching or detaching the attachment 2A to the main body 1, and the attachment detachable portion serves as a power switch for the heater 4.

When using this hair dryer, since the temperature sensor 14 is provided not in the main body 1 but in the attachment 2A as described above, the temperature can be controlled at a set temperature suitable for the attachment 2A. In addition, since the temperature sensor 14 can detect the hot air temperature of the attachment 2A, that is, the hot air temperature at a position close to the hot air outlets 9 and 10, compared to a conventional hair dryer that detects the hot air temperature at the main body outlet part. As a result, the difference between the detected temperature and the temperature of the warm air actually blown onto the hair becomes small, and accurate temperature control can be performed.

Second Embodiment (See Figures 7 and 8) The attachment 2B shown in this second embodiment has both a brush function and an iron function, and has a bristle 33 on the outer periphery of a cylindrical main part 32. ...and the bristle stand 34 is fixed by a stopper 35. Main part 3
2 and the bristle stand 34 are provided with a large number of matching warm air outlets 36, 37, similar to the attachment 2A of the first embodiment.

In this attachment 2B, a temperature sensor 3 is installed at one hot air outlet 37 in the center of the bristle table 34 in the length direction.
8 is provided, and the hot air outlet 37 is detected by this temperature sensor 38.
The temperature of the hot air blown from the sensor is detected. According to this configuration, since the temperature of the hot air actually blown onto the hair is almost directly detected, accurate temperature detection, that is, temperature control can be performed.

Note that a fitting part 39 having a larger diameter than the others is formed at the base end of the attachment main part 32, and this fitting part 39
It is designed to be fitted into the tip of the main body 1 shown in the first embodiment. Further, inside this fitting portion 39, terminals 17a and 18a of the receiver are attached via ribs 19, as in the first embodiment.

Third embodiment (see Figure 9.10) In this third embodiment, in the attachment 2B shown in the second embodiment, one of the bristles 33 (indicated by reference numeral 33a) doubles as a temperature sensor. Conversely, this shows a case where bristles are formed by the temperature sensor 33a. According to this configuration, even more accurate temperature detection can be performed at a position closer to the hair.
0 is a wiring board connected to the temperature sensor 33a.

Fourth Embodiment (See Figure 11.12) The attachment 2C shown in the fourth embodiment is an iron used for curling hair, and has a large number of hot air outlets 41.
... is configured to be able to open and close freely by a cylindrical winding part 42 provided on the peripheral wall and a presser plate 43 pivotally attached to this winding part 42, and curls the hair while holding it in place and heating it. It looks like this.

44 is a fitting portion formed at the base end of the winding portion 42, and 45 is a spring that exerts a spring force in the direction of closing the presser plate 43. In this attachment 2C, the wrapping portion 42
A temperature sensor 46 for detecting the temperature of this peripheral wall is attached to the peripheral wall at approximately the center in the length direction. 47 is a sensor mounting hole into which this sensor 46 is fitted and fixed.

In the case of this attachment 2C, since the hair iron function is performed by the heat of the wrapping part 42 heated by hot air, the temperature is controlled by detecting the temperature of the peripheral wall of the wrapping part 42 as in this embodiment. This allows the heating temperature of the hair to be maintained at an appropriate level.

Fifth Embodiment (See FIG. 13) The fifth embodiment shows another connection structure of the connection terminals on both the attachment side and the main body side described in the first embodiment.

The figure shows the attachment 2A of the first embodiment as an application example, and a pair of pin terminals 49a and 50a are attached to the inside of the base of the attachment main part 5 via a rib 48 in the main length direction.

Both pin terminals 49a, 50a are each supported by springs 51, 51 so as to be elastically slidable within a certain range. On the other hand, terminal plates 49b and 50 corresponding to both pin terminals 49a and 5Qa are provided at the tip of the main body 1.
b is fixed and the attachment 2A is attached to the main body 1, the tips of both the pin terminals 49a, 50a are configured to elastically contact the terminal plates 49b, 50b, respectively, and are electrically connected. .

With this configuration as well, as in the case of the first embodiment, the temperature sensor in the attachment is automatically connected to and disconnected from the circuit block in the main body 1 by attaching and detaching the attachment 2A.

(Effects of the Invention) As described above, according to the present invention, a temperature sensor is provided in each attachment instead of in the hair dryer body as in the conventional case, and the temperature sensor directly detects the temperature of hot air at the attachment. Therefore, it is possible to perform accurate temperature control for each attachment by setting a temperature suitable for each attachment and based on a detection result of a temperature close to the temperature that actually acts on the hair.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a hair dryer according to a first embodiment of the present invention, Fig. 2 is an enlarged front view of the same part, Fig. 3 is a longitudinal sectional view of an attachment in the hair dryer, and Fig. 4 is a third Figure IV-IV line, Figure 5 is a sectional view of the same
A half-sectional front view of the attachment in the hair dryer according to the embodiment, FIG. 8 is an enlarged sectional view taken along the line ■-■ in FIG. 7,
9 is a view corresponding to FIG. 8 of an attachment in a hair dryer according to a third embodiment of the present invention, FIG. 10 is an enlarged front view of a temperature sensor provided in the attachment, and FIG.
1 is a partially cutaway front view of a hair dryer according to a fourth embodiment of the present invention, FIG. 12 is an enlarged sectional view taken along line XI-XI in FIG. 11, and FIG. 13 is a partially cutaway front view of a hair dryer according to a fifth embodiment of the present invention. This is a diagram equivalent to Figure 2. 1... Hair dryer main body, 2A, 2B, 2C... Attachment, 14, 38, 33a, 46... Temperature sensor, 17a, 18a and 49a, 50a... Connection terminal of attachment. Patent applicant Matsushita Electric Works Co., Ltd. Agent
Patent Attorney Etsushi Kotani Patent Attorney Chief 1) Masayuki Patent Attorney Yasuo Itaya Figure 2 Figure 3 Figure 5a Figure 4 Figure 5 Figure 7 Figure 1q Figure 8 Figure 9 Figure 10 Figure 11 Figure 12

Claims (1)

[Claims] 1. A hair dryer body having a built-in hot air generation block and a control block for controlling the hot air generation block,
In a hair dryer configured by detachably attaching an attachment such as a brush with a hot air outlet, the attachment includes a temperature sensor that sends a temperature signal to the control block, and the temperature sensor is electrically connected to the control block. A hair dryer, characterized in that it is provided with a connection terminal for. 2. The hair dryer according to claim 1, wherein the temperature sensor is provided at a hot air outlet portion of the attachment. 3. The hair dryer according to claim 1, wherein the temperature sensor is attached to the attachment wall so as to be able to detect the wall temperature of the attachment. 4. The hair dryer according to claim 1, wherein the component of the attachment is formed of a temperature sensor. 5. The hair dryer according to claim 1, wherein the hair dryer main body has a connection terminal that is electrically connected to a connection terminal of the attachment when the attachment is attached. 6. Claim 5, characterized in that one of the connection terminals of the hair dryer main body and the attachment is elastically supported by a spring so that the connection terminals of the hair dryer body and the attachment come into elastic contact with each other and are electrically connected. Hair dryer as described in section.