JPS5880277A - Connector for integrated circuit board - 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 relates to a connector for an integrated circuit board such as an IC package.1 The present invention relates to a connector for an integrated circuit board such as an IC package. A pair of first . a second elastic arm;
．． Both free ends of the second elastic arm elastically support the left and right or front and rear left and right edge side surfaces and lower surface of the integrated circuit board accommodated in the substrate, thereby providing a contact integrated circuit board supporting function and a positioning function. ．． The elastic action of the second elastic arm presses both free ends of the second elastic arm against the side surface or bottom surface of the edge, and the pressure contact force makes it possible to achieve good electrical contact with the terminals of the integrated circuit board. The present invention provides an integrated circuit board connector that is ideal for connecting leadless integrated circuit boards. The drawings show an embodiment of the integrated circuit board connector.

In the figure, l is a rectangular board on which a connector body is formed, and has a rectangular integrated circuit board accommodating portion 2 in the center thereof. A large number of contacts 3 are provided on the four walls defining the housing part 2.
are arranged in parallel. The contacts 3 may be arranged around the accommodating portion 20, that is, on a pair of opposing left and right sides of the accommodating portion, or on each of the front, rear, left, and right sides.

The upper two contacts 3 each include a leg portion 4 extending through the substrate 1 toward the lower surface of the substrate, and first and second elastic arms consisting of a pair of elongated elastic pieces connected to the leg portion 4 and extending toward the upper surface of the substrate. 5,
6. The contact 3 has the leg portion 4 and the first. The second elastic arms 5 and 6 have a common connecting plate part 7, the connecting plate part 7 is inserted into each of the grooves 8 arranged in parallel in a comb shape, and the bottom side thereof is fixed to the bottom wall of the groove 8; The leg portion 4 is extended from one end using the connecting plate portion 7 as a medium, and the first leg portion 4 is extended from the other end.
The second elastic arms 5, 6 are extended.

1st. A second elastic arm 5.6 extends from the side of the integrated circuit board receiving part 2 toward the receiving part 2 through a bending part 9 at a position 1 where the free end of each arm reaches the receiving part 2; 5 at the upper position and the second elastic arm 6 at the lower position, they are placed in a horizontally parallel state with an interval 7 between them.

Reference numeral 10 indicates an integrated circuit board mounted on the housing part 2 of the substrate 1, and the integrated circuit board 1 is mounted at the free end of the upper first elastic arm 5.
A first contact end 5a supporting the edge side surface 11 of the upper O1 is formed, and the free end of the lower second elastic arm 6 is extended so as to protrude beyond the free end of the upper elastic arm 5. A second contact end 6a is formed to support the lower edge surface 12 of each.

Above 1. The second elastic arms 5 and 6 are placed without interference with each other, and the integrated circuit board 10
The first contact end 5a is pushed sideways to accommodate the first contact end 5a while being elastically displaced, and as a reaction, the first contact end 5a
The end surface of the integrated circuit board 10 is pressed against the edge side surface 11 of the integrated circuit board 10. At the same time, the lower edge surface 12 of the integrated circuit board 10 is supported on the second contact end 6a of the lower second elastic arm 6 and is pressed downward to elastically displace it, and as a reaction, the second contact end 6a A pressure contact is obtained with the lower edge of the integrated circuit board 10.

The integrated circuit board 10 accommodated in the substrate 1 as described above is supported by pressure contact on its front, rear, left and right sides, or left and right sides of each contact 30 by the first and second elastic arms 5 and 6, and the integrated circuit board 1
Contact with the terminal 13 arranged on the edge side surface or the lower surface of 0 is attempted.

If the pattern of terminals 13 is formed across the lower edge of the integrated circuit board 10, the above-mentioned method 1.

Good electrical contact is achieved by both of the 29th p-type arms 5 and 6, and the terminal 1 is provided only on either the bottom surface or the side surface.
Even in the case of arrangement 3, contact with the terminal 13 can be ensured by either the tilting of the second elastic arms 5 and 6 or the fall of the second elastic arms 5 and 6.

FIG. 4 shows a case in which the arm 5 is provided with a U-shaped bent portion 14 in order to promote the bending elastic effect of the elastic arm 5 and improve the pressure contact property. Further, the integrated circuit board 10 is supported by the second contact end 6a of the second elastic arm 6 on its front, rear, left, right or left and right edge lower surfaces, and the side surface of the same portion is pressed and supported by the second elastic arm 5, so that the contact 3 Therefore, it is expected that the integrated circuit board 10 will be supported and positioned well.

FIG. 5 shows another embodiment of the contact 3 provided for the same purpose as described above. The first elastic arm 5 and the second elastic arm 6 are extended in parallel in the substantially vertical direction from the substantially connecting plate part 7, and the contact end 5a of the free end of the first elastic arm is connected to the free end of the second elastic arm 6. The second contact end 6a of the free end of the second elastic arm is brought into pressure contact with the edge side surface 11 of the integrated circuit board 10 by protruding beyond the edge thereof, and the second contact end 6a of the free end of the second elastic arm is brought into contact with the edge lower surface 12 of the integrated circuit board 10.
The terminal 13 is brought into pressure contact with the terminal 13 disposed on the same pressure contact surface. 1st. The second elastic arm is tilted forward by 5° 6Fi, and the integrated circuit board 10 is pushed in, thereby bending in the direction of the arrow in the figure, producing the above-mentioned pressing force. In order to promote bending elasticity, 1. The second elastic arms 5 and 6 may be provided with a U-shaped bent portion.

The integrated circuit board 10 is supported by the elastic arms 2 and its peripheral edge is constantly controlled and positioned at the center position by the pressing force of the first elastic arm 5.

The integrated circuit board 10 is normally placed in the substrate 1 manually, and the integrated circuit board 10 is held down by known holding means such as a cover that is closed onto the board.

The drawings are shown in Section 1 above. In order to hold the second elastic arms 5 and 6 pressed, a cover 16 for holding down the integrated circuit board 10 from above is provided on one end of the board 1 so that it can be opened and closed, and when the cover 16 is closed, the other end of the board can be opened and closed. Lock par 15 installed in
The above-mentioned holding means for the integrated circuit board, which shows the case where the above-mentioned closed state is maintained by engaging with the above-mentioned closed state, is merely an example.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of the connector, FIG. 2 is a side view of the connector with the board partially cut away, and FIG. 3 is a sectional view of the connector showing the state in which an integrated circuit board is accommodated. FIG. 4 is a sectional view of the connector showing another example of the contact, and FIG. 5 is a side view of the same, showing a second other example of the contact. DESCRIPTION OF SYMBOLS 1... Board, 2... Integrated circuit board housing part, 3... Contact, 4... Leg part, 5... First elastic arm, 6
...Second elastic arm, 5a...First contact end, 6a
...Second contact end, 10...Integrated circuit board, 11...
-Edge side surface, 12...Edge bottom surface, 13...Terminal.

Claims (1)

[Claims] Around the integrated circuit board mounting area of the board, solid contacts are arranged in parallel, and the contact has a leg part extending through the board to the bottom surface of the board, and a leg part extending to the top surface of the board connected to the base of the leg part. The first of the pair. a second elastic arm;
a first contact end that supports a side edge of an integrated circuit board mounted on a substrate with a free end of the elastic arm; a second contact end that supports a lower side of an edge of the integrated circuit board with a free end of the second elastic arm; 1. The second contact end is connected to the first contact end. The integrated circuit board is configured such that the elastic action of the second elastic arm causes the integrated circuit board to come into pressure contact with the edge side surface or the bottom surface thereof, and under the pressure contact, contact with the terminals of the integrated circuit board arranged on the edge side surface or the bottom surface. Circuit board connector.