JPS6035481A - Electric component connecting system - 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 and Background Art] The present invention relates to an electrical component connection method for connecting a printed board and a connecting pin of an electrical component mounted on the printed board.

Conventionally, in this type of electrical component connection method, after the electrical components are mounted on a printed board, a connecting pin of the solder-stained component is fixed to a conductive hole in the printed board to establish an electrical connection between the two. This connection method is widely used because of its low manufacturing cost and high reliability of electrical connection.

However, with the recent increase in the density of electrical parts due to LSI (highly integrated circuits), this system has become more and more connected, and the number of connection bins on which they are mounted has become thicker, resulting in the following problems: I've been doing it.

(Electrical parts such as 11LSI may also be damaged, requiring parts to be replaced.) If you are using the conventional solder connection method, heat all the connection bins of the electrical parts at the same time to remove the solder. It melted, and the parts had to be instantly removed and replaced.This work is becoming increasingly difficult as electrical parts become more numerous.

(2) As the number of connection pins for electrical components increases, the number of +& meridian lines between components also increases, and printed boards become more multi-layered and thicker. When soldering such a thick printed board, the printed board absorbs a lot of heat, and the parts that require soldering do not reach the required temperature, which tends to cause poor contact and prevent reliable solder connections.

[Disclosure of the invention]

The present invention includes a connection fixing plate made of an electrically insulating material with a hole passing through the connection pin of one electrical component, and a holding means for pressing the connection fixing plate to hold one electrical component, such as a printed board, etc. After mounting on the board, install the connection fixing plate from the back of the printed board with the hole passed through the connection bin of the electrical component,
Furthermore, by moving the connection fixing plate laterally using the holding member and pressing the connection bin against the wall surface of the printed board tatami hole for electrical connection, it is possible to easily replace electrical parts such as LSI, and to solder The purpose of the present invention is to disclose a method for connecting electrical parts that eliminates installation work, increases the reliability of electrical connections on printed circuit boards, and improves the reliability of electrical connections on printed circuit boards.

[Explanation of Examples]

The present invention will be explained in detail based on FIGS. 1 and 2.

FIG. 1 is a cross-sectional view of the state in which electrical components are mounted and fixed on a printed board, and FIG. 2 is a bottom view of the state shown in FIG. 1. In these drawings, 1 is an electrical component such as an LSI, and 2 is a connection bin. Reference numeral 3 denotes a printed board having a large number of conductive holes 3a, through which connection pins 2 for electrical components 1 pass. Reference numeral 4 denotes a connection fixing plate made of an electrically insulating material, and a hole 4a is provided in almost the same positional relationship as the conduction hole 3a of the printed board 3. The connecting pin 2 of the electrical component 1 passes through this hole 4a.

Support rods 5 project below the printed board 3 and are located at both left and right ends of the connection fixing plate 4. Reference numeral 6 denotes a screw threaded onto one (right side) support rod 5, the tip of which is in contact with one side of the connection fixing plate 4. Reference numeral 7 denotes a holding protrusion fixed to the other (left side) support rod 5, which engages with an engagement hole 8 provided on the other side of the connection fixing plate. The holding means consists of these support rods 5. Screw 6. It is formed by a holding protrusion 7 and a retaining hole 8.

Therefore, when the screw 6 is turned and pushed in, the connection fixing plate 4
The electric component l is moved to the left and penetrates through the hole 4a.
Press the connecting pin 2 to the left so that it comes into contact with the wall of the conductive hole 3a of the printed board 3.

As a result, the connection pin 2 of the electrical component 1 is fixed on the printed board 1 with a reliable electrical connection. Furthermore, when the screws 6 are loosened, the connection fixing plate 4 moves to the right, loosening the connection pins 2 and printed board 3 of the electrical component 1, allowing the electrical component 1 to be removed and replaced.

This electrical component connection method can be applied to any printed board, regardless of the thickness of the printed board.

〔Effect of the invention〕

According to the present invention, there is no need for soldering at all, and the electrical components can be easily removed from the printed board, so that the electrical components can be replaced quickly and reliably. Furthermore, even on a thick printed board, electrical connections can be made reliably, and electrical components can be mounted with high fN-axis properties that are not affected by the thickness of the printed board.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the state in which electrical components are mounted and fixed on a printed board, and FIG. 2 is a bottom view of the state shown in FIG. 1. 1... Electrical parts 2... Connection pin 3... Printed board 3a... Continuity hole 4... Connection fixing plate 4a... Hole 5... Support rod 6... Screw 7...・Retaining protrusion 8...Retaining hole application filed NEC Corporation

Claims (1)

[Claims] A connection fixing plate made of electrically insulating material with a hole penetrating the connection bin of the electrical component, and a holding means for pressing and holding the connection fixing plate, and after the electrical component is mounted on a printed board etc. , Attach the connection fixing plate from the back of the printed board with the hole passed through the connection bin of the electrical component, then move the connection fixing plate laterally using the holding member, and press the connection bin against the wall of the printed board conduction hole. 'Electrical component connection method characterized by electrical connection.