JPS5848992B2 - Integrated circuit board connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector for an integrated circuit board such as an IC package. A large number of contacts arranged in parallel on the left and right sides or front and back of the circuit board mounting part are provided with a pair of first and second elastic arms, and the first and second elastic arms are provided with a pair of elastic arms.
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. , characterized in that both free ends of the second elastic arm are brought into pressure contact with the side surface or the bottom surface of the edge by the elastic action of the second elastic arm, 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, reference numeral 1 denotes a rectangular substrate 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 arranged in parallel on the four walls defining the housing part 2.

The contacts 3 may be arranged around the accommodating portion 2, 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 contact 3 includes a leg portion 4 extending through the substrate 1 toward the lower surface of the substrate, and first and second elastic arms 5 consisting of a pair of elongated elastic pieces connected to the leg portion 4 and extending toward the upper surface of the substrate. ，
6.

The contact 3 includes the leg portion 4, first and second elastic arms 5,
6 have a common connecting plate part 7, and 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, and the connecting plate part 7 is As a medium, the leg portion 4 extends from one end, and the first and second elastic arms 5, 6 extend from the other end.

The first and second elastic arms 5 and 6 extend from the side of the integrated circuit board accommodating section 2 toward the accommodating section 2 through the bent portion 9 to a position where the free end of each arm reaches the accommodating section 2. The arm 5 is placed on the upper side and the second elastic arm 6 is placed on the lower side, so that they are horizontally parallel to each other 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 integrated circuit board 10 is formed, and the free end of the lower second elastic arm 6 is extended to protrude beyond the free end of the upper first elastic arm 5. A second contact end 6a is formed to support the lower edge surface 12 of each.

The first and second elastic arms 5 and 6 are placed without interference with each other, and the integrated circuit board 10 has the first elastic arm 5 on the side surface of the peripheral edge.
The first contact portion 5a of the first contact portion 5a is pressed laterally to accommodate the first contact portion 5a while being elastically displaced, and as a reaction, the end surface of the first contact portion 5a is pressed and supported 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 right and left sides, by the first and second elastic arms 5 and 6 of each contact 3, and under the pressure contact, the integrated circuit board 1
Contact with the terminal 13 arranged on the edge side surface or the lower surface of 0 is attempted.

When the pattern of terminals 13 is formed across the bottom surface of the edge of the integrated circuit board 10, good electrical contact is achieved by both the first and second elastic arms 5, 6, and the bottom surface is Alternatively, even if the terminal 13 is arranged only on one side, contact with the terminal 13 can be ensured by tilting the first and second elastic arms 5, 6 on one side.

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 first elastic arm 5 and improve the pressure contact property.

Moreover, the integrated circuit board 10 is supported by the second contact end 6a of the second elastic arm 6 on its front, left, right, or left and right edge lower surfaces, while the side surface of the same edge is suppressed and supported by the second elastic arm 5. 3 can be expected to have a supporting effect and a good positioning effect for the integrated circuit board 10.

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 portion 7, and the first 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 lower edge surface 12 of the integrated circuit board 10, and the second contact end 6a of the second elastic arm is brought into pressure contact with the lower edge surface 12 of the integrated circuit board 10. The terminals 13 are placed in contact with each other.

The first and second elastic arms 5, 6 are tilted forward, and when the integrated circuit board 10 is pushed in, they are bent in the direction of the arrow in the figure, producing the above-mentioned pressing force.

In order to promote bending elasticity, first and second elastic arms 5, 6 are provided.
A U-shaped curved portion may be provided.

The integrated circuit board 10 is supported by the second elastic arm, 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 usually housed in the substrate 1 manually, and the integrated circuit board 10 is held down using known holding means such as a cover that is closed to the board.

The figure shows that a cover 16 for holding down the integrated circuit board 10 from above is provided at one end of the board 1 so as to be openable and closable in order to keep the board pressed into the first and second elastic arms 5 and 6. A lock par 1 that can be opened and closed at the end of the
5 is engaged and the closed state is maintained.

The above integrated circuit board holding means is merely an example.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, in which FIG. 1 is a plan view of the connector, FIG. 2 is a side view of the connector with a part of the board in section, 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 cross-sectional view of a connector showing a first alternative example of the contact, and FIG. 5 is a side view of the connector showing a second alternative 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, 1
3...Terminal 0

Claims (1)

[Claims] 1. A large number of contacts are arranged in parallel around the integrated circuit board mounting part of the board, and each contact has a leg part that extends through the board to the bottom surface of the board, and a leg part that extends to the top surface of the board continuous with the base of the leg part. a pair of first and second elastic arms,
A first contact end that supports the side surface of the edge of the integrated circuit board mounted on the substrate with the free end of the first elastic arm, and a second contact end that supports the lower surface of the edge of the integrated circuit board with the free end of the second elastic arm. The first and second contact ends are pressed against the side surface or the bottom surface of the edge of the integrated circuit board by the elastic action of the first and second elastic arms, and under the pressure contact, the side surface of the edge is pressed. Or a connector for an integrated circuit board configured to make contact with the terminals of the integrated circuit board arranged on the bottom surface of the same.