JPS638399Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an electric iron having a printed circuit board.

(b) Prior art For the purpose of controlling the temperature of the base surface to a constant level, there is a method using a semiconductor element with a control pole, such as in Japanese Utility Model Publication No. 51-28408, and this semiconductor element is attached to a substrate. The substrate is housed and fixed in the cavity of the handle. However, since the size and mounting position of the board were not considered at all, and only the mounting base for the electronic components was considered, although the effect of heat from the base side on the electronic components is small, the temperature of the handle and No effect could be expected in terms of strength, etc.

(c) Problems to be solved by the invention The invention aims to prevent the temperature rise of the printed circuit board and to rationalize assembly by attaching an indicator lamp and an operation switch to the printed circuit board.

(d) Means for Solving the Problems The present invention provides a grip in which a grip part is formed and housed in a base and a cavity formed in the grip part, arranged and fixed along substantially the entire length of the grip part. A printed circuit board with heat insulating spaces formed at the top and bottom of the inner wall of the unit and electronic components mounted thereon, and an indicator lamp with a light emitting section facing the upper surface of the grip mounted on the top surface of the printed circuit board and an operating section. It consists of an operation switch.

(E) Operation The display lamp, operation switch, and electronic components are attached to a printed circuit board, and the printed circuit board is housed in the cavity of the grip section and arranged and fixed along substantially the entire length of the grip section.

(f) Embodiments Examples of the present invention will be described based on the drawings. 1
2 is an iron cover provided above the base; 3 is a base fixed to the top surface of the iron cover; it has a bar-shaped grip 4 on the top; A support part 6 having a guide part 5 at the rear thereof and having the grip part 4 and the guide part 5 connected to each other at the rear part.
is formed. The grip portion 4 is composed of a lower plate 8 having a semicircular cross section and a plurality of upwardly projecting mounting bosses 7, and an upper plate 9 fixed above the lower plate and having a flat cross section, A cavity 10 is formed by the upper plate 9 and the lower plate 8. 11 is an operation plate provided on the front side of the grip portion 4 and having a flat surface;
12A and 12B are two printed circuit boards housed in the cavity 10 and arranged and fixed along substantially the entire length of the grip portion 4, which form a heat insulating space between the inner walls of the upper plate 9 and the lower plate 8, and Electronic components 15 such as resistors 13, 13 and semiconductors 14, 14 are attached to one side of each, and the components are fixed to mounting bosses 7, 7 on the lower plate 8 side so as to face each other. The printed circuit board 12A located above has a length extending from the rear of the grip section 4 to the vicinity of the operation plate 11, and the printed circuit board 12B located below is longer than the aforementioned printed circuit board 12A and has a length extending from the rear of the grip section 4 to the vicinity of the operation plate 11. It extends from the rear end to the lower tip of the operation plate 11. Reference numerals 16A and 16B denote a plurality of push button type operation switches attached to the front side of the upper surface of the printed circuit board 12B, and operation sections 17A and 17B facing the grip section 4 are provided on the upper surface. 18...18 is a plurality of units attached in tandem on the front side of the upper surface of the printed circuit board 12B to which the operation switch is attached.
It is an indicator lamp such as an LED, and has a light emitting part 19...19 facing the grip part 4 at the top, and the temperature set by the operation switches 16A, 16B is displayed through an electronic circuit made of an electronic component 15. It is displayed as follows.

Reference numeral 20 denotes a tank detachably housed between the iron cover 2 and the guide portion 5, and drops the stored water into a vaporizing chamber (not shown) provided in the base 1.

Next, we will discuss the operation. First, hold the grip part 4 and press the temperature increase operation switch 16A to set the base temperature to a predetermined temperature. By this pressing operation, the electronic circuit energizes the heater and displays the set temperature by flashing one indicator lamp. The operating sections 17A, 17B of the operating switches 16A, 16B and the light emitting sections 19...19 of the indicator lamps 18...18 face the grip section 4, making operation easy and providing excellent visibility.

Thus, when the temperature of the base 1 rises and reaches the set temperature, a sensor (not shown) that senses this temperature lights up the aforementioned indicator lamp 18 continuously via an electronic circuit to notify the user.

The temperature on the base 1 side is determined by using the guide part 5 as conductive heat.
In addition, a part of the temperature of the base 3 is increased as radiant heat that heats the outside air, but the printed circuit boards 12A, 1
2B is arranged and fixed at the farthest position from the base 1, so it is not affected by heat.

(g) Effects of the invention As described above, the present invention has electronic components, an indicator lamp, and an operation switch mounted on a single printed circuit board, the printed circuit board is housed in a cavity provided in the grip, and the grip is abbreviated to Because it was placed along the entire length,
The printed circuit board is not only unaffected by heat, but also has the above-mentioned members attached in advance, making it easy to assemble. Furthermore, the printed circuit board increases the strength of the grip, and the temperature rise in the grip can be suppressed by the heat insulating effect of the heat insulating spaces provided at the top and bottom of the printed circuit board. In addition, since the display lamp and operation switch can be stored in the cavity of the grip with the display lamp and operation switch attached in advance, there is no need for a fixture to fix the display lamp and operation switch, and the display lamp and operation switch can be attached to a print. Lead wires connecting the boards are no longer required. Furthermore, the force applied to the operating switch is absorbed by the printed circuit board, allowing the stroke required for operation to be maintained.

[Brief explanation of drawings]

Figure 1 is a side view of the electric iron of the present invention, Figure 2 is a side view of the electric iron of the present invention;
The figure is a perspective view of the operation plate, and FIG. 3 is a partial sectional view. 1...Base, 2...Iron cover, 3...
Base, 4...Grip part, 10...Cavity, 12A, 1
2B...Printed circuit board, 15...Electronic component, 16
A, 16B...operation switch, 17A, 17B...
...Operation unit, 18...18...Display lamp, 19...
...19... Light emitting part.

Claims (1)

[Scope of utility model registration request] A base containing a heater, an iron cover provided above the base, a base fixed to the upper surface of the cover and forming a grip having a cavity, and a base that is housed in the cavity and runs along substantially the entire length of the grip. A printed circuit board is arranged and fixed to form a heat insulating space between the upper and lower parts of the inner wall of the grip part, and on which electronic components are attached. An electric iron consisting of a display lamp and an operating switch.