JPS59143221A - Dip switch containing electronic circuit - 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] The present invention provides 1) IP with a built-in electronic circuit that has a simple structure and can perform opening/closing operations with constant consistency and can be extremely miniaturized.
Regarding switches.

Conventionally, a DIP switch (hereinafter referred to as a DIP switch) is equipped with an electronic circuit that obtains a predetermined electrical continuity between predetermined terminals by appropriately selecting and operating a switch drive unit. )It has been known. This switch is made by connecting the terminals of a normal θIP switch to the necessary parts of an electronic circuit formed on a printed circuit board, etc., and housing it in a groove 2. Since it uses a molded individual printed circuit board, it is suitable for larger sizes.

Therefore, it may be possible to integrate the DIP switch, print, and four boards into one, but 1) With the one-flower type individual switch used for the L switch, there is a problem in terms of miniaturization, and there is also a problem with miniaturization. Since electric current is handled, there are also problems with the stability of the contact parts. For example, even if you press the contact piece of a contact part 'cL type switch printed on a printed circuit board, good contact cannot be obtained. The medium+i product must be made thicker.

The present invention has been developed in view of the above-mentioned difficulties, and is extremely compact with a simple structure and stable opening/closing operation.
The present invention, which aims to provide a DIP switch incorporating an electronic circuit 1-7 that makes it possible, will be described in detail below based on the drawings.

The DP switch with a built-in electronic circuit of the present invention has a first
Terminals 2.3 are located on the left side of the insulating base 1 as shown in Figure 2.
, Terminals 4.5 are located on the right side.

Here, the terminal 3.4 is a normal terminal, and the terminal 2.5 is a terminal with an external lead cut off. These terminals should not be arranged in a specified manner. Terminals 2 to 5 are each within m IJ
- The upper and lower internal leads 2a and 2b, 3a and 3b, 4a and 4b, 5a and 5 are branched vertically.
A printed circuit board 6 formed on the lower surface of the electronic surface is held between both sides.

The internal leads 2b13b14b151) of the construction work are respectively connected to the necessary parts of the electronic circuit, and are molded and housed as one body in an insulating base.

By embedding and integrating into the insulating base in this way, it is possible to significantly reduce the size of the upper internal board 2a.
3a-, 4"z 5" is a contact 2m d, which is arranged on the upper side of the printed circuit board and formed into a -C knife by cutting both ends of the contact piece 7 and bent downward.
It is opposite to 1.

The contact piece 7 is made of a conductor plate that is gently curved downward, and is pivotable at the recesses 13 of the 12-km base 1 of the protruding piece 12 at both ends of the center, and swings freely using the downward protrusion 14 at the center as a fork. The contact piece 7 is placed in the air space 1b below the switch cover 1b.Then, the contact piece 7 is brought into contact with the protrusion 17 from above to the inside of the protrusion 14, and is pressed to contact the bottom of the switch cover 15 (the member 1B presses the contact piece 7 into contact with the bottom of the switch cover 15). When the suppressor 4O is moved to the right, its protrusion 17 presses against the abdomen 20 as shown in FIG. Single end 10.11. and upper internal lead (structure) 4a,
5a. By moving the pressing member 18 to the right, conduction occurs between the -C1 terminal 4.5 and the internal leads 4b, 5b, 31) on the lower side of the terminal 4.5 and the terminal 3, and the electronics corresponding to these internal leads. Terminal 3 is also brought into conduction by controlling the circuit, and terminals 4 and 3 are brought into a constant electrical state due to the intervening electronic circuit, and are brought into conduction through an impedance of a certain magnitude, say y+1, between them.

In this case, as the pressure H1% material 18 moves, the contact piece 7
id elastically deformed knife contact tJiu.

Since the upper internal leads 4a and 5b are pulled when 11 is in contact, even if flux adheres to the upper control internal lead or an oxide film is formed, 1) 1' will be destroyed and the active 11
Since 11 is exposed and contacted, a good contact can be obtained.

Similarly, if the pressing member 18 is moved to the left, the contact end 8.
9 contacts the upper internal leads 2a, 32, and the lower internal leads 21), 3b, and 4b are selectively electrically connected.

Ordinary terminal for simplicity in the above example? Although the example shown in FIG. 4 has two terminals with cut external leads disposed in parallel on both sides, the example shown in FIG. Contact the upper internal leads 2 and 3 with the contact piece described above to obtain 4 contacts.

The contact piece 7 is driven by a sliding type using the pressing member 18, but a toggle type or a rotary type may also be used.

As is clear from the above examples, in the present invention, instead of using a printed circuit board on which an electronic circuit is formed and a separate LP switch, the 1971m board is held between internal leads branched above and below the terminal. L)The IP switch body and electronic circuit are integrated by being embedded in the insulating base.
Furthermore, the switch (some of its parts are simple and have raw surfaces exposed and in contact with each other, so they can be opened and closed even with a small amount of current, and the switch has an extremely small electronic circuit). You will get a knob switch.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 21'A is a plan view of the embodiment shown in Fig. 1; Direction: A cross-sectional view showing the state of movement, and FIG. 4 is a folding screen view showing another embodiment of the present invention. 1... Insulation base 2.5.22 Terminals 2a, 3a with external leads cut off,
4a, 5a, 23 ・Upper internal lead 21), 3b
, 41], 5b...Inner lead 3.4.21 of lower 1141+...Normal terminal 6...Pa...Printed circuit board 7 on which electronic circuit is formed... ...Movable contact piece 8.9.10.11...Contact end 14...Convex strip 15...Switch cover 16...Air space 17... ... Lost part 18 of suppressing member ... Suppressing member 20 ... Abdominal agent of contact piece Patent attorney Moritani - Male procedure manual (spontaneous) 1. Display of the case Japanese Patent Application No. 58-17948 No. 2, Name of the invention Dip switch with built-in electronic circuit 3, Person making the amendment Relationship to the case Patent applicant NewO Co., Ltd. 4, Agent Address: 103 Chuo-ku, Tokyo 3-9-5 Nihonbashi Honmachi Kyodo Building (Shinhonkaidori) Telephone 03 (/242) 728
1 Part 5, Subject of amendment 6, Contents of amendment (1) The detailed description of the invention is amended as follows. (A) [Press member 18...] on page 5, lines 6 to 13 of the specification
Becomes conductive. ] is corrected as "As the suppressing member 18 moves to the right, the terminals 4 and 5 become electrically conductive, while the terminals 2 and 3 become electrically non-conductive." (b) Correct "5b" on page 5, line 16 to r5aJ. (C) "Similarly, press the pressing member 18..." on page 6, lines 1 to 6.
Conductivity is established in a shielded state. ” to “Similarly, the suppression member 18
When the contact end 8.9 is moved to the left, the contact end 8.9 comes into contact with the upper internal leads 2a, 3a, and conduction is established between the terminals 2.3. At the same time, the terminals 4 and 5 become non-conductive. ” he corrected. (d) Add the following sentence between page 6, line 12 and page 6, line 13. "By doing this, it is possible to realize a dip switch with a predetermined number of slide switches. An actual dip switch is an electronic circuit formed on a printed circuit board 6, and when combined with a switch, it can be used as a potentiometer or a chip selector. This chip selector is illustrated in FIG.
Changes from cc to ground potential GND. However, the chip selector also accommodates the desire to obtain output in binary code. That is, if the switches a-d are numerically weighted 2-2 and a plurality of terminals are switched synchronously, parallel binary data can be obtained at the output terminals A'-D'. In this embodiment, all the elements used in the chip selector were resistors, but it is also possible to use capacitors, diodes, or even logic elements in place of the resistors. That is, FIG. 6 shows a chip selector in which a four-man power OR circuit is realized by making any of the switches a to d connected to the diodes D1 to D4 conductive. In FIG. 7, the X terminal is connected to the power supply Vcc, and the input terminal A
A chip selector is shown in which, when ~D is connected to GND, one of the switches a'' to d is made conductive and an inverted output is obtained at the output terminals A'~D' via the logic element 11=14. In Figure 8, by making switches a-d conductive, input terminals A-D and output terminals A'-D' are connected to capacitors 01-D.
The chip selector connected with C4 is shown. In FIG. 9, a switch a is connected in parallel to each of the resistors R□ to R4.
= A potentiometer is shown in which a predetermined resistance value is obtained between terminals X and Y by making either one of d conductive. (2) The brief description of the drawings shall be amended as follows. (b) "It is a perspective view." on page 7, line 11.
FIG. 5 is a circuit diagram of an electronic circuit built into the dip switch of the present invention, FIGS. 6, 7, and 8 are circuit diagrams showing a chip selector as another embodiment of the present invention, and FIG. 9 FIG. 2 is a circuit diagram showing a potentiometer as another embodiment of the present invention. ] and correct it. (b) Add the following sentence between page 8, line 6 and page 8, line 7. rR1~R4...Resistance a~d...Switch D~
D4...Diode A-D, A'
~D', X, Y...terminals C1-C4...
Capacitor ■□~I4...Logic element Vcc
...Power supply voltage GND
...Ground'' (3) Add the drawing as shown in the attached sheet.

Claims (1)

[Claims] Normal terminals are arranged in a predetermined manner on both sides of the insulating base, and the terminals with their external leads cut off have their internal leads branched upward and downward, and a printed circuit board formed on the entire bottom surface of the electronic circuit is held between both sides. It was branched out with. The internal leads on the two sides are facing each other on the top surface of the printed circuit board, and the internal leads on the lower side are connected to the four parts of the electronic circuit, and the movable contact pieces that come into contact with these opposing upper internal leads are connected to the knife. A predetermined number of contact ends formed on both sides 1. and bent downward. The conductor plate is pivoted to an insulating base so as to be swingable about a central downward convex strip that is gently curved downward as a fulcrum. The insulating base that was contacted by the detective 1 in the previous article -
It is locked in the neutral position by a pressing member that abuts under the switch cover fitted on the switch cover 9, and the pressing member is moved to each side of the opposed upper side. A DIP switch that includes an electronic circuit, wherein the abdomen of the conductive plate is pressed by the protruding portion to bring the predetermined number of contact ends into contact with the corresponding upper internal leads. .