JP2584659Y2 - Input device for electronic equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input operation device for an electronic device such as a microwave oven.

[0002]

2. Description of the Related Art A conventional input operation device 21 of a microwave oven 20 shown in FIG. 8, for example, has a front side of an electrically insulating material housing 22 as shown in a cross sectional view of FIG. 9 and an exploded perspective view of FIG. A key input device accommodating portion 23 is formed on the upper side of FIG.
It is set to 4. A key input device 2 as shown in the plan view of FIG. 11 and the cross-sectional view of FIG.
5 makes the back side substrate 26 contact the surface of the housing 22 and is fixed using an adhesive. At one end of the accommodating portion 23, an insertion hole 28 for drawing out the lead-out portion 27 and the lead-out wiring 36 of the key input device 25 is provided.

The key input device 25 includes a plurality of movable contacts 29
Are provided on the back surface side, a flexible front side substrate 30, a conductive wire (not shown) provided opposite to the movable contact 29, fixed contacts 32 and 33 (see FIG. 11), and an insulator printed portion or Back side substrate 26 having film-shaped insulator 35
And formed by The electric circuit 41 is accommodated in the electric circuit accommodating portion 24 and, as shown in an exploded view of FIG.
The conductor 43 is formed of copper foil or the like thereon, and the electronic component 46 is soldered between different poles of a solder pile 45 provided at a predetermined position of the conductor 43.

[0006] The key input device 25 and the electric circuit 41 are attached to the rear surface of the housing 22 by being led out of the lead-out portion 27 of the key input device 25 through the insertion hole 28, guided to the rear side of the housing 22. They are connected by being connected to conductors 43 formed on the bakelite plate 42 of the electric circuit 41 via the connector 48.

[0005]

As described above, in the conventional input operation device 21, the housing 22 and the key input device 25 are provided.
And the electric circuit 41, each of these three restrictions is a design restriction of the microwave oven. Further, the electric circuit housing portion 24
Because of the necessity of providing a large size, there is a problem in terms of cost and cost.

An object of the present invention is to provide an input operation device which saves space in a device, is reduced in size, and has a low cost.

[0007]

According to the present invention, a first sheet portion and a second sheet portion made of an electrically insulating material are integrally formed by connecting a first sheet portion and a second sheet portion with a bent portion. A substrate disposed so that one sheet portion and the second sheet portion face each other; a fixed contact formed on a surface of the first sheet portion opposite to a surface facing the second sheet portion; and the fixed contact. A flexible sheet made of a flexible electrically insulating material having a movable contact formed in correspondence with the first sheet portion, and a flexible sheet made of a flexible electrically insulating material provided on a surface of the second sheet portion opposite to the surface facing the first sheet portion. Electrical circuit, and a power supply attached to the electrical circuit
And a transformer having substantially the same size as the second sheet portion.
And the power transformer is exposed so that
A reinforcing plate attached to the electric circuit side of the second sheet portion, and a conductor connecting the fixed contact formed on the bent portion of the substrate and the electric circuit, wherein the electric circuit is formed from the fixed contact. It operates in response to the electrical signal of

[0008]

[0009]

When the substrate is pressed, the movable contact of the substrate is connected to the fixed contact, and electricity is supplied from the conductor of the key input device to the conductor of the electric circuit to operate the electric circuit. Also, relatively heavy components such as power transformers and display elements can be directly
It becomes possible to solder to the sheet part.

[0010]

FIG. 1 is an exploded perspective view of a front side of a substrate of an input operation device according to the present invention. As shown in FIG.
A first sheet portion 2 and a second sheet portion 3 made of an electrically insulating material such as a PC are connected together by a bent portion 4 to be integrally formed ;
And the first sheet part 2 and the second sheet part 3 face each other.
Ru is located. Second sheet part 3 of first sheet part 2 of the substrate
Opposed to the opposite surface of the surface, as shown in the plan view of FIG. 2, is branched from the conductor 5 and the conductor 5, which is formed by a transfer copper foil, fixed opposite poles to each other are close formed together Contacts 6 and 7 are provided (see FIG. 3).

A key input device 8 including the conductor 5 and fixed contacts 6 and 7 is formed on the first sheet portion 2 of the substrate 1. As shown in the cross-sectional view of FIG. 3, the key input device 8 covers the insulator 9 on the first sheet portion 2 of the substrate 1 except for the area where the fixed contacts 6 and 7 are formed. The front side flexible sheet 10 made of a flexible and electrically insulating sheet material is stretched over the entirety of the sheet. On the surface of the front-side flexible sheet 10 on the substrate 1 side, the fixed contacts 6, 7
A movable contact 11 made of a conductive material
Is formed. Further, a film-shaped display sheet 12 using a flexible material such as vinyl chloride is adhered to the further front side of the front side flexible sheet 10, and the position of the movable contact 11 is attached to the display sheet 12. The indicated display unit 13 is formed by printing or the like.

The insulator 9 and the front-side flexible sheet 1
The top sheet 12 and the top sheet 12 are adhered to each other with an adhesive, and are fixed to the front side of the first sheet portion 2 of the substrate 1. An electric circuit 14 is formed on the surface of the second sheet portion 3 of the substrate 1 opposite to the surface facing the first sheet portion 2 . The electric circuit 14
As shown in the back side perspective view of FIG. 4 and the main part enlarged back view of FIG. 5, a conductor 1 such as a copper foil formed by transfer or the like.
5 is provided, and a solder pile 16
Is provided. A chip-shaped electronic component 17 such as an IC is mounted between the different poles of the solder pile 16 by soldering.

By attaching a reinforcing plate 18 made of synthetic resin or bakelite to the second sheet portion 3 of the substrate 1, a relatively heavy component such as a display element is placed between the different poles of the solder pile portion 16. Power transformer 19 can be directly soldered (see FIG. 7).

The conductor 5 of the key input device 8 provided on the front side of the first sheet portion 2 of the substrate 1 and the conductor 15 formed on the front side of the second sheet portion 3 4 is connected to the surface of the conductor 4 by a conductor 20 formed by transferring a copper foil similar to the conductors 5 and 15 or the like.

In the above structure, at the time of use, the movable contact 12 of the front side flexible sheet 10 is pressed on the first sheet portion 2 of the substrate 1 by pressing a desired portion in accordance with the display portion 13 of the display sheet 12. The fixed contacts 6 and 7 are brought into contact with each other, and electricity is supplied from the conductor 5 of the key input device 8 to the conductor 15 of the electric circuit 14 in accordance with the electrical connection configuration formed on the second sheet portion 3 of the substrate 1, and the electronic component 17 is operated I do. Each of the conductors 5, 15, and 20 according to the above embodiment may be printed with a conductive material such as silver or carbon.

[0016]

[Effect of the Invention] Since the input operation device of the electronic device of the present invention has the above-described configuration, the space of the electronic device can be saved, the cost can be reduced, and the quality can be improved by reducing the number of structures. Also has the effect of being connected.

Further, it is possible to directly soldering a relatively heavy with certain components such as power transformers by the reinforcing plate,
The number of structures can be reduced, and the assembling efficiency can be improved. Also, from the reinforcing plate
Insert the power transformer into the second sea so that the power transformer is exposed.
The heat of the power transformer efficiently.
Can heat and raise the temperature of the second sheet part
Can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a front view of the substrate of the present invention.

FIG. 3 is an enlarged sectional view of a main part of the key input device of the present invention.

FIG. 4 is a rear perspective view of the substrate of the present invention.

FIG. 5 is a partially enlarged rear view of the substrate of the present invention.

FIG. 6 is an enlarged perspective view of a bent portion of the substrate of the present invention.

FIG. 7 is a rear perspective view showing a state in which a reinforcing plate is attached to the substrate of the present invention.

FIG. 8 is a perspective view of a conventional microwave oven.

FIG. 9 is a sectional view of a conventional key input operation device.

FIG. 10 is an exploded perspective view of a conventional key input operation device.

FIG. 11 is a front view of a conventional key input device.

FIG. 12 is a sectional view of a conventional key input device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 1st sheet part 3 2nd sheet part 4 Bend part 5,15,20 Conductor 6,7 Fixed contact 8 Key input device 10 Front side flexible sheet 11 Movable contact 14 Electric circuit 16 Solder part 17 Electronics Parts 18 Reinforcement plate 19 Power transformer

Claims (1)

(57) [Scope of request for utility model registration] 1. A first sheet portion and a second sheet portion made of an electrically insulating material are connected to each other by a bent portion so as to be integrally formed so that the first sheet portion and the second sheet portion face each other. A flexible substrate comprising: a substrate to be disposed; fixed contacts formed on a surface of the first sheet portion opposite to a surface facing the second sheet portion; and movable contacts formed corresponding to the fixed contacts. a flexible sheet of electrically insulating material, an electric circuit eclipsed set on the opposite surface of the first surface facing the seat of the second seat portion, a power transformer mounted on the electric circuit, The second sheet portion is formed in substantially the same size as the second sheet portion.
The second sheet so that the power transformer is exposed.
A reinforcing plate attached to an electric circuit side of the portion, and a conductor connecting the fixed contact and an electric circuit formed at a bent portion of the substrate, wherein the electric circuit is an electric signal from the fixed contact. An input operation device for an electronic device, which operates in response to a command.