JPS62249609A - 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] 〔Technical field〕 This invention relates to a hair dryer.

[Background technology]

Recently, in hair dryers, base plates such as wiring boards have come to be often used in order to simplify the wiring process for each component. Incidentally, since each person has different preferences regarding air temperature, air volume, etc. when drying hair and styling hair, many of the recent hair dryers are capable of controlling these settings. Therefore, it has become necessary to provide the base plate with a large number of control circuit components and switches that are the operating parts thereof.

However, since the hair dryer is equipped with a heater that generates heat, it is necessary to thermally protect the control circuit components and the operation section from the heater in order to make the hair dryer as compact as possible in order to improve usability.

[Purpose of the invention]

In view of the above problems, it is an object of the present invention to provide a hair dryer in which a heater, control circuit components, and operating section are arranged as compactly as possible, and in which the control circuit components and operating section are protected from the heat of the heater. It is said that

[Disclosure of the invention]

In order to achieve the above object, the present invention provides a base plate having a heat sink, in which a control section is disposed on one side, which is the heater side, and an operation section for operating the control section is disposed on the other side. The gist of this invention is a hair dryer in which at least a control part of the parts is disposed on the front side of the heater in the air blowing direction.

Hereinafter, the present invention will be described in detail with reference to the drawings showing one embodiment thereof.

FIG. 1 shows an example of a hair dryer according to the present invention.
This is a cross section of the entire hair dryer, and FIG. 2 shows the state in which it is disassembled except for a part and viewed diagonally from above. As you can see in these figures, the hair dryer body 1 consists of two parts.
One of them is a first case body 2, and the other is a second case body 3. These first. The second case body 2.3 is provided with a mounting step 5 having an axotiment attachment/detachment button 4 at its tip;
An outside air intake port 6 and a connector mounting portion 7 are provided at the rear end.

Both the gauge bodies 2 and 3 are each semi-cylindrical in shape, and are combined together to form a single cylindrical body. A cap 9 having an accent ring 8 at its base is attached to the mounting step 5. The cap 9 consists of a straight cylindrical cap tube 10 and a protective lattice section 11 formed at the tip thereof. In addition, in the figure, 12 is a ventilation hole surrounded by the protective grid, and 13 is a base tube part 1.
This is the outer peripheral edge of the tip of 0.

At the rear end of the body 1, as shown in FIG. A connected connector ring 16 is attached. power cord 1
5 and the connector ring 16 are connected to each other by a connecting cylinder 17, and one end of a fixing ring 18 provided on the outer periphery of the connecting cylinder 17 is attached by engaging with a hole in the center of the rear end frame part 14. There is. A rear end cap 19 is fitted onto the outer periphery of the fixing ring 18, and an air intake filter 20 is attached via this cap 19.

The internal structure of the body I is as follows.

In other words, in the rear part of the body 1, there is a motor (M
) 21, which is attached to the body l via a cylindrical fan housing 23 that projects from its rear end. An air supply fan 24 driven by the motor 21 is provided within the fan housing 23 . The air supply fan 24 sucks outside air from the outside air intake port 6 through the filter 20, sends it to the rectifying blades 22, straightens it through the rectifying blades 22, and sends it to the surrounding frame 25 provided at the front inside the body l. The hot air is sent through the inside to the hot air outlet 12 of the base 9, and is turned into hot air by the heater block 35.
It is fed into a removable attachment (not shown).

The enclosing frame 25 is attached to the body l, and a first wiring board 26 is installed in the open bottom portion thereof. The first wiring board 26 is a rectangular plate that is long from front to back, and is provided with an ascending stepped portion 27 at a slightly higher front end thereof. This first wiring board 26 includes a wiring plate 28 made up of a large number of conductive pieces.
(see FIG. 5) is sandwiched between upper and lower mounting plates 29, 29, and an insulating plate 30 is attached to the upper surface thereof. This first wiring board 2
6 is arranged parallel to the center of the body 1 toward the inner circumferential wall of the second case body 3, that is, toward the bottom of the drawing, and has an upward step portion at its front end on the upper surface facing the center of the body 1. A temperature sensor 31 is installed at 27. As shown in FIG. 3, this temperature sensor 31 consists of a positive temperature coefficient thermistor (PTC) 32 and a microheater (μH) 33 for controlling PTcfA degree. The temperature sensor 31 is located on the first wiring board 26 which is located behind the aperture opening 34 corresponding to the inside of the mounting step 5, and is located at the tip of the first wiring board 26. Since it is located in the ascending stepped portion 27, it is located close to the heater block 35 arranged at the rear, so that the heat source from the heater can be received more reliably with less air blowing resistance, and the arrangement has excellent responsiveness. This makes it easier to integrate and significantly improves safety. The amount of heat of the microheater (μH) 33 is controlled by controlling the microheater near the positive temperature coefficient thermistor (PTC) 32, as shown in FIG. (μH)
The power to 33 is adjusted by resistors R1-R3 and adjustment volume (VR) 36,
Positive characteristic thermistor (PTC) 32
temperature is controlled. Therefore, the resistance value of the positive temperature coefficient thermistor (PTC") 32 is
It is determined in relation to the power value operated and adjusted by the micro-heater (μH) 33, and the trigger start phase point of the triac (T) 49 is determined in accordance with this determined resistance value. Therefore, the amount of heat generated by the heater wire (H) 42 can be controlled by the resistors R7 to R3 and the adjustment volume (vR).

A thermoswitch (Th) 37 is arranged behind the temperature sensor 31 on the first wiring board 26 . As shown in FIG. 4, this thermoswitch 37 is connected to the first wiring board 2.
It is placed in the center between the widths of 6 and 6. Behind the thermo switch 37 of the first wiring board 26 is a heater block 35.
is located at the center of the width. The power consumption of the heater wire (H) 42 of the heater block 35 is controlled by the trigger capacitor (
The phase is controlled by a circuit including a triac (T) 49 including C4) 47 and a trigger element (SBS) 48. In addition, 38 in each figure is a pair of conductive support pieces in front and back, 39
4 is a cylindrical insertion tube that is a part of the conductive support piece 38; 40 is a support leg that is also a part of the conduction support piece 38 and supports the insertion tube 38; and 4 is the insertion tube 3.
This is an insulated vibrator that is inserted into and held by the heater wire 9 and around which the heater wire 42 is wound. In addition, in Fig. 3, R6 is a control lamp (
D3 is a rectifier for the lamp, D, D, R4 are diode resistors for removing hysteresis, and R2 is a protection resistor.

A voltage dividing resistor block 50, which is part of the control section, is arranged behind the heater blocks 35 and 6 on the first wiring board 26. This voltage dividing resistor block 50 is provided to reduce the voltage applied to the motor 21, and is provided on a pair of left and right insulating substrates 51, 51. Second voltage dividing resistance wire (R?, R
8) 52.53 is wound. A through hole 60 is formed in the center of the insulating substrate 51 so that the resistance wires 52 and 53 are effectively cooled and protected.

Note that 55 in the figure indicates the pair of left and right insulating substrates 51.51.
It is an electrically conductive connecting piece that supports a gate in a gate shape, and is formed into a substantially T-shape by a connecting part 56 and a conductive supporting part 57, and the pair of left and right insulating substrates is attached to the tip of the connecting part 56. 51, and an insertion portion 59 for insertion into the first wiring board 2G is provided at the tip of the conductive support portion 57. Further, a conductive insertion leg 54 is provided at the lower end of the insulating substrate 51, and the 8M substrate 51.51 is thereby attached to the first wiring substrate 26.

A temperature fuse 46 is installed between the insulating substrates 51 and 51 by utilizing the space. The temperature fuse 46 arranged in this manner reliably reacts to abnormalities in any usage mode of the three-switch blower circuit, thereby improving safety.

Behind the voltage dividing resistor block 50 on the first wiring board 26, a control circuit component block 62, which is the remaining part of the control section, is arranged in front of the motor 21. The control circuit component block 62 includes first to third sub-wiring boards 63, 64, and 65. The first and second sub-wiring boards 63 and 64 are provided vertically in the same row behind the insulating board 51 of the voltage dividing resistor block 50.

As shown in FIG. 5, the first and second sub-wiring boards 63, 64 are provided with sub-wiring plates 66, 67, and a third sub-wiring board 65 is provided on the upper side of the side board 63, 64.
is placed so that it faces horizontally. A triac (T) 49 is installed on the third sub-wiring board 65, and the eleventh second sub-wiring board 63.6
4, an altoroidal core (L) 68 is installed as a triac switching noise prevention coil so as to be connected to the first wiring board 26. On the outside of the first and second sub-wiring boards 63.64, there are capacitors (c, ``'''C4) 69 to 71.47 for noise prevention and trigger purposes, diodes 72, coils 73, silicon bidirectional switching (
trigger) element (SBS) 48, and rectifier CD) 74
Control parts such as

As shown in FIG. 6, the control circuit component block 62 includes the first. Second sub-wiring boards 63 and 64 are arranged to face each other left and right with their plate surfaces facing the direction of air blowing, and
A toroidal core 68 is placed between the substrates 63 and 64.
3. (Since the control parts such as the tritic and capacitor are placed outside the i4, it becomes a short and compact block in the front and back, making the dryer more compact. Moreover, it is possible to make the dryer more compact. Since the toroidal core 68 is housed, even if the control parts are placed outside of both boards 63 and 64, the width is not so wide. At the same time, the external control circuit components are cooled and protected by the outside air.Since the outside air can easily flow between the two boards 63 and 64, the toroidal core 68 is effectively cooled and protected.

In addition, the above-mentioned No. 1. The second sub-wiring board 63,64 is
The wiring board 26 and the third sub-wiring board 65 are connected by conductive plates 75, of which the conductive plate 75 connecting with the first wiring board 26 is shown in FIG. The conductive plate 75 is formed so as to be integral with the wiring plate 28 of the first wiring board 26 and protrude toward the outside of the first distribution board 26, so that the conductive plate 75 can be folded back and connected. You can also. According to this, assembly becomes easy and costs can be reduced. Although the sub-wiring boards 51.51 are provided in one pair on the left and right, the present invention is not limited to this, and two pairs may be provided. Further, although the sub-wiring board 51.51 is gate-shaped when viewed from the front, it may be H-shaped. In this embodiment, the conductive plate 75 is formed integrally with the sub-wiring plate 1-66, 67, but it is also possible to connect them separately.

A second wiring board 76 is provided at a position on the back side of the first wiring board 26 so as to be parallel to the second wiring board 76 . As shown in FIG. 1, the second wiring board 76 includes, in order from the front side, three temperature control lamps (light emitting diodes D4 to D6) 77, 78, 79, and an air temperature control switch (S).

) 80, wind speed control switch (partial voltage resistance changeover switch S,) 81, and volume for fine adjustment of air temperature (V
R) 36 are arranged in series to form the operating section 100. This second wiring board 76 is also connected to the first wiring board 26.
Similarly, a wiring plate consisting of many conductive pieces is embedded. As shown in FIG. 4, this wiring plate and the wiring plate 28 of the first wiring board 26 are connected to a large number of conductive connecting portions 8 that are integral with both plates.
Connected by 2. These conductive connecting parts 82 are
As shown by X in the figure, the second wiring board 76 is folded back at a folding position set close to the second wiring board 76, so that the second wiring board 76 By simply folding them back to back, you can create a compact board unit that electrically connects the operating section, heater, and control section, and eliminates the need for lead wires. There is no need to connect wires, which can lead to trouble, and assembly is simple and reliability is improved.

As described above, in this invention, the control circuit component block 62 includes the voltage dividing resistor block 50 and the control circuit component block 62, and is arranged on one side, which is the heater side, of the base plate, which is composed of the 12th and 2nd wiring boards 76 and 76. or a wind temperature control switch 80 including control lamps 77 to 79 for temperature control to a volume 36 for fine adjustment of the wind temperature.
The controls up to ('l L OO) are also placed closer to the front in the air blowing direction than the heater block 35, so that the control section and operation section are effectively protected from heater heat. Moreover, since the operation unit lOO is arranged on the back side (other side) of the base plate, the entire device can be made more compact.

A space for soldering when each component is soldered is formed between both wiring boards 26 and 76. This is done by protruding ribs from the first wiring board 26 side.

As shown in FIG. 1, the first wiring board 26 requires a conductive connecting portion 84 that includes a pair of lead terminal plates 83 that are connected to the connector ring 16. , as shown in Fig. 7, by sandwiching and fixing the wiring board between the fan housing 23 and the second case body 3, the wiring board is more securely fixed, which prevents the generation of abnormal noises and vibration noises, and reduces the amount of air flow. This will no longer cause a decline in
Moreover, positioning of each part becomes easy. Further, a heater block 35 is provided on the back side of the first FA board 26.
A cap 85 is attached to correspond to the above.

This cap 85 has a slide member 8 that is slid by an ON-OFF switching main switch (S, ) 86.
7 is set.

The lighting order of the temperature control lamps 77, 78, and 79 corresponds to the sliding operation procedure of the air temperature control switch 80. In other words, Fig. 8 (
In a), the wind temperature is High, and in (b), the wind temperature is Me.
d, the same figure (C1 shows the operation state and lighting state when the wind temperature is l and ow.Resistors R1 to R388, 89, 90 for changing the wind temperature (for adjusting the micro heater wattage) are:
They are arranged in series parallel to the sliding direction of the air temperature control switch 80, and a resistor 88 is arranged toward the tip of the body 1. Control lamp (D4
~D6) 77 to 79 are arranged so that D4 is on the resistor 88 side. As a result, when the air temperature control switch 80 is operated so as to be brought to the front as shown in FIG. indicate. As shown in the figure (bl), when the air temperature control switch 80 is slid forward one step, the two front control lamps D, DS turn on and go out to indicate that the state is in Med. As shown in Figure (C), when the air temperature control switch 80 is slid to the farthest position, the two rear control lamps D, D, turn off and only D4 lights up to indicate that it is in the Low position. In this way, since the sliding sequence of the air temperature control switch 80 and the lighting order are interlocked, the air temperature switching can be visualized and is easy to use.

In addition to the control lamps D4 to D6 for controlling the air temperature, control lamps D to D for controlling the air volume may be arranged. The circuit is shown in FIG.

Up to now, the present invention has been described only based on the embodiments shown in the above figures, but the hair dryer of the present invention is not limited to the embodiments shown in the above figures. for example,
In the embodiment shown in the above figures, the base plate is formed by folding the first and second wiring boards connected to each other by a conductive member back to back at the conductive member. It may be formed of a shaped material. However, if this embodiment is adopted, each component can be mounted before bending the first and second wiring boards, which simplifies assembly as described above. In addition, the structure and shape of each part of the above embodiment cylinder were as shown in FIG.
This may be any other configuration 5 shape. This also applies to the internal circuit, and the circuit does not necessarily have to be like the one shown in FIG. In short, a control section is arranged on one side of the base plate provided with the heater, which is the heater side, and an operation section for operating the control section is arranged on the other side, and at least the control section of the two parts is arranged on the heater side. Other configurations are not particularly limited as long as they are placed closer to the front in the air blowing direction.

〔Effect of the invention〕

As described above, in the present invention, a control section is disposed on one side of a base plate provided with a heater, which is the heater side, and an operation section for operating the control section is disposed on the other side, and both of the above-mentioned parts are disposed. The main feature of the hair dryer is that at least the control section is located on the front side of the heater in the air blowing direction, so the heater, control section, and operation section are arranged as compactly as possible, and the control section and operation section This has the advantage that the hair is not overheated by the heater, making it suitable for downsizing hair dryers.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional side view of the hair dryer according to the present invention, showing the whole dryer, Fig. 2 is an exploded perspective view thereof, Fig. 3 is an electric circuit diagram of the hair dryer shown in Fig. 1, and Fig. 4 is an expanded plan view of the first and second wiring boards and the components installed thereon, FIG. 5 is a front view of the control circuit component block, FIG. 6 is a plan view thereof, and FIG. FIGS. 8(a) and 8(b) are perspective views showing the mounting structure of the conductive means between the power cord side and the first wiring board;
). (C1 is an explanatory diagram showing the relationship between the operation procedure of the air temperature control switch and the lighting order of the control lamps, and FIG. 9 is a circuit diagram of an example in which control lamps for controlling the air volume are combined.

Claims (2)

[Claims] (1) A control unit is disposed on one side of the base plate including a heater, which is the heater side, and an operation unit for operating the control unit is disposed on the other side, and at least the control unit of both parts is disposed. A hair dryer is placed in front of the heater in the air blowing direction. (2) The hair dryer according to claim 1, wherein the base plate is formed by folding first and second wiring boards connected to each other by a conductive member back to back at the conductive member.