JPS58206267A - Wiring structure of electronic device - Google Patents

Abstract

PURPOSE:To assure the connection between electronic devices with no increase of redundancy, by providing terminals at least at three points of a flexible insulated sheet, connecting these terminals via a winding containing print on both sides and using these devices in common with each other although the opposite direction is changed among the devices. CONSTITUTION:A flexible connector connects between a terminal 5a and other terminals 6a, 7a and 8a respectively to ensure the common use among these terminals. When a dial substrate 2 is connected to a circuit substrate 3 by means of the flexible connector, the terminal 5a of the connector is folded inside from a state shown by a tow-dot chain line I in the figure (a) and then connected to a connection terminal 2a of the substrate 2. Under such conditions, the terminals 6a, 7a and 8a set at positions corresponding to a connection terminal 3a of the substrate 3 are selected and then connected to the terminal 3a.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] O suitable for improving the structure of # and a of electronic equipment for concealment [Technical Background of the Invention and its Problems] For example, the dial board and telephone circuit of a telephone Connections between each external connection terminal with the board are conventional pin terminals, connectors,
Alternatively, a so-called flexible joiner, which is a band-shaped flexible connector with N terminals arranged at both ends, is used for connection. According to these structures, connections can be made with good workability in a relatively small space compared to a method in which each terminal is connected one by one using lead wires.

However, in devices such as push-button telephones that require changing the orientation of the dial or the orientation of the telephone circuit board depending on the arrangement, the direction in which the dial board faces the telephone circuit board changes accordingly. Therefore, if the conventional structure is applied in such a case,
If pin terminals or connectors are used, there will be problems such as increased redundancy, which will worsen workability, and in the case of flexible jointers, long joiners will be required, and swivels will be required to add twist to the jointer. If the torsion part is compressed to improve the force factor, unreasonable force is applied to the core part, resulting in a significant decrease in reliability, and in some cases, the force force may be different in each opposing direction. [Objective of the Invention] The present invention enables common use of each circuit device even if the facing direction of each circuit device changes, and also provides a simple and comprehensive method without increasing redundancy. The present invention provides a highly reliable and inexpensive wiring structure for electronic S devices.

[Summary of the invention]

Prepare a flexible cable/pull connector that connects each terminal with double-sided printed wiring with all through holes connected to each other, and connect each terminal of this flexible gel connector according to the pairwise relationship of each circuit device. The user selects the appropriate one and connects it.

[Embodiments of the invention]

Figure 1 shows the construction of an intrusion structure in one embodiment of the present invention. This telephone has a dial unit Iff by installing a dial board 2 at the bottom of the pushbutton/dial l, and this dial unit is optionally fixed to a circuit board 3 constituting a telephone circuit, and the dial Protruding from one side of the board 2
.

The first connecting terminal 2a and the external connecting terminal 3a patterned on the circuit board 3 are connected by a flexible connector, which will be described later.

FIG. 2 is a diagram showing the configuration of the flexible connector. 1
In Figure 61, this flexible fitting (opposite, f +
A film made of polyimide resin is formed into a substantially cross shape according to the opposing positions of the external connection terminals 2a, 9a of the dial base 2 and the circuit board 3, and each protrusion is 5. Terminals at each end of 67.8,
5a, 6a, 7a.

8a is arranged. Among these terminals, the terminal 5 connected to the external connection terminal 2a of the dial board 2
a (terminal numbers 1', ~, 10') are configured in a land shape, and each terminal 6a, 7a, 8th (terminal numbers I', ~, t') connected to the external connection terminal 3atf of the circuit board 3 is configured as a land. The lands formed on both sides are through holes. In this flexible connector, the terminals 5a+6a, 7a, and 8a are mutually connected by double-sided printed wiring 10 using through holes 9. In the figure, of the double-sided printed wiring 10, those sealed on the front side of the sheet are shown with solid lines, and those on the back side are shown with broken lines. In addition, the flexible connector of this example is
Terminal 5a connected to external connection terminal 2a of dial board 2
Among them, those with the same function are connected on the printed wiring/mother turn for common use, and each other terminal 6i a r 7 a
r+! I try to connect it to l a. The flexible connector of this embodiment has a terminal 5a and each other terminal 6.
a.

7a and 8a are being integrated.

Therefore, in order to connect the dial board 2 and the circuit board 3 using the above-mentioned flexible connector, first connect the terminals 5ai of the flexible connector with the two-dot chain lines shown in FIGS. By folding the inner pocket once from the state (2) as shown in the figure, the external connection terminal 2a (
Connect to terminal numbers 1°~, 10), and then select terminals 6a, 7a, 8th located at positions corresponding to external connection terminals 3a (terminal numbers A, ~, G) on the circuit board 3 in this '$ state. Is this terminal an external connection terminal? aK Keiyo is good.

For example, if the position 2 relationship between the dial board 2 and the circuit board 3 is as shown in FIG. 3(a), the terminal 6a of the flexible connector
Select and connect to the external connection terminal 3a of the circuit board 3.

If the positional relationship is as shown in FIG. 3(b), select the terminal 78 and select the external connection terminal, ? Just connect aK. Similarly, in the case of Fig. 3(c), it is only necessary to connect the terminal 8a.Although each unused terminal can be left as is, there is no problem, but it is also possible to cut off the entire protruding part and use it. good.

In this way, in this embodiment, each terminal 6a + 7a
, 8m, it is only necessary to select and connect the required terminals, so it can be used in common even if the opposing directions are different, connections can be made with relatively little redundancy, and there is almost no need for alignment. This makes it extremely easy and reliable to connect. Furthermore, since no excessive force such as twisting is applied, a highly reliable connection can be achieved. Furthermore, since it can be manufactured with a simple structure of simply applying double-sided printed wiring 10 using through holes 9 to a film-like insulating sheet, it has the advantage of being able to be provided at low cost.

FIG. 4 shows the structure of a flexible connector in another embodiment of the present invention. This flexible connector has protrusions 11, 12, . . . on three sides of the film-like insulating sheet.
13 and have terminals 11m and 12m at their tips, respectively.
, 13m (terminal numbers A, -, D), and the number of terminals 11m, 12m, and 13t* is the same.

In addition, each terminal 11ar12a, 13m phase, and between tiles,
Multiple connections are made to double-sided printed wiring 20 using through holes 19, respectively.

However, using the flexible connector of the lever, the circuit board 14
and each external connection terminal 14m, 15g with another circuit board 15
(Terminal numbers E, ~, H) To connect each other, connect each terminal 11m, 128°13m to each circuit board 14 above.
．． It is good to select and connect as appropriate depending on the opposing direction of the 15.

For example, in the case of FIG. 5(a), terminal 11m and terminal 1
2m to the external kFX, terminals 14a and 15g, respectively, and in the case of Fig. 5(b), connect the terminals 11m and 13a to the external connection terminals 14a and 15a, respectively, and then connect them to the external connection terminals 14a and 15a, respectively, as shown in Fig. 5(c). In the case of , terminal 11th and fan 12m
The external connection terminals are 14m and 15m JfC, respectively. In addition, as shown in No. 5u(d), each external connection terminal 1
When 4m and 15m are facing each other, as shown in the figure, bend the terminal 12h side of the flexible connector from the two-pointed state to match the terminal 13h side, and in this state, connect the terminal 12a
Connect to external connection terminal 1'4m and connect terminal 13g
should be connected to the external connection terminal 15m. In this embodiment as well, the portion connected to the external connection terminal 14a is multi-connected by bending it inward as shown by the two dots @ line ■ in the figure.

In this way, also in this embodiment, each circuit board 14.1
Even when the relative orientations of terminals 5 change, simply selecting each terminal 11m, 12a+13m according to the orientation allows easy, reliable connection, and connection with small redundancy.

Note that the present invention is not limited to the above embodiments. For example, the installation position and orientation of each terminal may be determined by changing it as appropriate depending on the facing relationship of each circuit device. In addition, the number of terminals, the material of the flexible connector, the configuration of the terminals, the connection method, the type of electronic device to be worn, etc. can be modified in various ways without departing from the gist of the present invention.0 [Effects of the Invention] In the present invention, a flexible connector is prepared using double-sided printed wiring in which terminals are provided on each side of the flexible insulating seam W and through-hole connections are made between these terminals, and each terminal of the flexible connector is According to the present invention, even if the facing direction of the M circuit changes each time, the same Flexible connectors allow easy and reliable connection without increasing redundancy, allowing for highly reliable and easy-to-use electronic equipment arrangement! It is possible to provide even the monument.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the main parts of an electronic device to which a lugs structure according to an embodiment of the present invention is applied, Fig. 2 is a schematic configuration diagram of a flexible connector according to an embodiment of the present invention, and Fig. 3 (a
) to (e) are schematic diagrams for explaining how the connector is used, Figure 4 is a schematic configuration diagram of a flexible connector in another embodiment of the present invention, and Figures 5 (a) to (d). is a schematic diagram for explaining the convenient form of the connector. 1... Dial, 2... Dial board, 3... Circuit board, 2a, 3a-114a, 15JL... External connection terminal, 5, 6, 7, 8, 11, 12.13... Projection, 5'a+6a, 7a', 8a, 77m+12a
+ 13 a terminal, 9, 19. -...Through pole, 10.20...Double-sided printed wiring. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 1 (b) Figure 3 (c) 1 Figure 4 2a 1a

Claims (1)

[Claims] The external connection terminals of a plurality of circuit devices whose opposing directions change are connected by a double-sided printed layout in which terminals are provided on at least three sides of a flexible insulating sheet and these terminals are connected through holes. Wiring structure of an electronic interface characterized by connection by a connected flexible connector lBlue 0