JPS6063991A - Device for connecting electronic part - 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 The present invention relates to an electronic component connecting device that does not require a circuit board on which an integrated circuit element is mounted. With the advancement of electronic technology, there is a demand for higher functional densities and smaller sizes. Therefore, conventionally, for example, when looking at connection devices for liquid crystal display devices in small calculators, LSIs and other components for driving liquid crystal display cells are not attached to circuit boards on which printed wiring is applied. The liquid crystal display cell was mounted and connected from the substrate terminal to the external connection terminal of the liquid crystal display cell described in -4- by a connector (for example, a flexible cable).

However, this configuration requires work to mount the LSI and components on the circuit board by soldering, etc., which takes time, and requires accurate relative positioning of the integrated circuit element and the printed wiring board. Otherwise, the terminals of the integrated circuit element and the terminals on the printed wiring board will be erroneously connected. Therefore, a jig for positioning is required, which has disadvantages such as poor productivity. In addition, since the board terminals and the liquid crystal display cell are connected by a connector such as a flexible cable, it is difficult to align the cable terminals and the external terminals of the liquid crystal display cell, which increases the number of parts and costs. It had

Purpose The present invention has been made to solve the above-mentioned conventional drawbacks, and is particularly applicable to so-called single-in-line integrated circuit devices in which a plurality of signal terminals are taken out along one side of the device. , the plurality of signal terminals of the integrated circuit element are arranged facing each other so as to overlap with the external terminals of the display element, and the external connection terminals of the display element and the signal input terminals are arranged opposite to the signal terminals of the integrated circuit element. By crimping and connecting the circuit board wiring, the connection process between each component is simplified.
It is an object of the present invention to provide an electronic component connecting device that can reduce costs, improve reliability, easily align terminals, and reduce planar dimensions.

<Embodiment> Fig. 1 is a partially cutaway sectional view of an embodiment of the present invention seen from the front, Fig. 2 is a longitudinal sectional view of the embodiment shown in Fig. 1, and Fig. 3 is a longitudinal sectional view of the embodiment shown in Fig.
The figure is a simplified cross-sectional view taken along section line III-Ill in FIG. The electronic desk calculator of this example includes an upper casing 1 and a lower casing 2. The upper casing 1 houses a battery 6 held by electrodes 3.4.5. The power of the battery 6 powers the integrated circuit element 8 that receives the signal derived from the push button 7 and performs calculations, and the display element 9 that displays the results of the calculation. A printed wiring IL film substrate 10 is disposed in the , and this filter substrate 10
is supported by a rigid wire holding plate 11.

By pressing the push button 7, the electrodes printed and wired on the film substrate 10 become conductive, and the signal is input to the integrated circuit 8.

4 is a plan view of the integrated circuit element 8, FIG. 5 is a right side view of the integrated circuit element 8, and FIG. 6 is a plan view of the integrated circuit element 8.
FIG. A package body 17 of the integrated circuit element 8 is mounted on the film substrate 10.
Terminals Q1 to Q27 are provided side by side to be connected to terminals P1 to P27 provided in . The holding plate 11 is fixed to the upper casing 1 by screws 12 and 13. The film substrate 10 supported by the holding plate 11 has positioning holes 16 inserted into two positioning projections 15 protruding from the upper casing 1, respectively.

Thereby, the relative position of the film 10 having the terminals Q1 to Q27 and the upper casing 1 is fixedly determined. Even if film E0 is bent in this way, terminal P
1-P27. Q1 to Q27 do not shift in the arrangement direction (that is, in the left-right direction in FIG. 1).

The package body 17 of the integrated circuit element 8 has terminals P1 to
On the opposite side of P27, a power energizing terminal Pa is fixed across the entire width of the package body 17. The terminal Pa has a plurality of (four in this embodiment) retaining holes 19 to 4 asymmetrically with respect to the center wirework 8 in the width direction of the electronic desktop calculator.
22 is drilled. The engagement holes 19 to 22 are individually engaged with four engagement protrusions 27 to 30 formed to project from the mounting base 26 of the upper casing 1.

On both sides of the package body 17, there is another one for power energization.
one terminal pb and a terminal P for testing the integrated circuit element 8.
c and are respectively provided. These terminals P1-P
27, Pa, Pb, and Pc are rigidities. Since the engaging holes 19 to 22 and the engaging protrusions 27 to 30 are provided asymmetrically with respect to the center line 18, the package body 17 is not attached to the upper casing l upside down, thus preventing incorrect wiring. Fear disappears. In this way, the relative positions of the integrated circuit element 8 and the upper casing 1 in the left-right direction in FIG. 1 are determined by the mutual engagement of the engagement holes 19-22 and the engagement protrusions 27-30.

Therefore, the terminals P1 to P27 of the integrated circuit element 8 can individually correspond to and contact the electrodes Q1 to Q27 of the film IO arranged on the holding plate 11. The power energizing terminal pa is connected to the electrode 5 when it is seated on the mounting base 26.
and in this state, the other terminal pbI'i electrode 4
come into contact with.

The connector 24 is placed on the terminals P] to P27. This connecting tool 24 is constructed by embedding elastic conductive rubbers R1 to R27 in an elastic electrically insulating rubber 25 in correspondence with individual terminals P1 to P27. The terminals P1 to P27 resiliently contact one ends of the conductive rubber R1 to R27.

The display 1-9 shows terminals 81 to B2 facing the connector 24.
7 are printed and wired, and these terminals S1 to S27 elastically contact the other ends of the conductive rubber R1 to R27.

Engagement protrusions 27 to 3 are provided on the engagement portions 19 to 22 of the integrated circuit element 8.
0 engages, the integrated circuit element 8 is positioned horizontally in FIG. 1 as described above, and the terminal P
] -P 27 is pinched between the film 10 and the connector 24, thereby preventing vertical displacement (left and right in FIG. 2) of the umbilicus integrated circuit element 8 and fixing it. Connection tool 2
4 are both widthwise walls 32 in the recess 31 of the upper casing 1
．． 33 is elastically fitted. Therefore, relative displacement in the width direction between the connector 24 and the upper casing 1 is prevented.

A support piece 14 is interposed between the display 9 and the integrated circuit element 8. The support piece 14 consists of a mounting portion 14a fixed to the back surface of the display element 9 and a support portion 14b that abuts and is supported by the terminal Pa, and has an L-shape as a whole.

In this way, the display element 9 is fixed by the connector 24 and the support piece 14. In the above embodiment, the terminals P1 to P27 and the terminals Q1 to Q27
, S1 to S27 and conductive rubber R], -R27 are the same number and are provided correspondingly,
Of course, unnecessary parts may not be provided.

As another embodiment of the present invention, a locking protrusion may be formed on the terminal Pa of the integrated circuit element, and an engagement hole that engages with the locking protrusion may be formed in the upper casing 1.

As yet another embodiment of the present invention, a retaining portion such as a Hoya hole (-1: or a retaining protrusion) is formed in the package body 17 of the integrated circuit element 8, and a retaining portion such as a retaining protrusion (-1: or a retaining protrusion) is formed in the upper casing 1. (an engagement hole) may be formed, and the integrated circuit element 8 may be positioned in the upper casing 1 in this manner.

Effects> As explained above, according to the present invention, an integrated circuit element in which a plurality of signal terminals are taken out from one side of the element is used, and the signal terminals of the integrated circuit element are faced so as to overlap with the external connection terminals of the display element. Since the external connection terminals and the wiring of the circuit board are connected to the signal terminals by crimping, there is no need for a board for mounting the integrated circuit element, and the process of assembling connections between each electronic component is simplified. It has advantages such as being simplified, positioning between the terminals is easy, the planar size can be reduced, reliability is improved, and miniaturization and cost reduction can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a part of an embodiment of the present invention seen from the front, taken along the section line ■--■ in FIG. 1, FIG. 4 is a plan view of an integrated circuit element 8, and FIG. right side view of integrated circuit element 8;
FIG. 6 is an exploded perspective view of the integrated circuit element 8 and its vicinity. Explanation of symbols 8: Integrated circuit element 9: Display element 10: Circuit board 11: Holding plate 27: Conductive rubber Agent Patent attorney Aihiko Fukushi (and 2 others) Figure 3 S2 u Figure 6

Claims (1)

[Claims] 1. An integrated circuit comprising a display element provided with external connection terminals, and a plurality of signal terminals taken out along one side of the element, and in which the signal terminals are arranged facing each other so as to overlap with the external connection terminals. an element, a circuit board on which wiring is formed and for inputting a desired signal to the integrated circuit element, and an external connection terminal of the display element and an external connection terminal of the circuit board with respect to a signal terminal of the integrated circuit element arranged facing each other. An electronic component connecting device characterized by comprising a means for crimp-connecting wires and electrically connecting them. 2. The circuit board is made of a flexible circuit board, and the external connection terminal of the display element and the wiring of the flexible circuit board are crimped and connected to the signal terminal of the integrated circuit element via an electrically conductive elastic body. Electronic component connecting device according to claim 1