JPH10247567A - Mounting structure for edge connector and printed circuit board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach or remove a printed circuit board by moving it from an edge of an edge connector is parallel with it, and attach or detach the printed circuit board by inserting side of a basket through a mother board in parallel with bottom of the basket. SOLUTION: When a terminal part of a printed circuit board is inserted into a slit 11 from an opening part 12 at the end of an edge connector 10, and the terminal part presses a pushing part 22 which is attached to the position opposite to the opening part such that it can slide freely, one end of an oscillating part 20 is pressed by the slope 23 of the pushing part 22, the oscillating part 20 rotates, then intermediate part 29 presses a pressing plate 24 inward, and the pressing plate 24 presses connector terminals at both sides of the slit to contact it with board terminals of the terminal part in the slit 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an edge connector connected to a terminal provided at an end of a printed circuit board, and a printed circuit board mounting structure in a personal computer or the like using the edge connector.

[0002]

2. Description of the Related Art As shown in FIG. 7, a mounting structure for mounting an expansion board 3 in a conventional personal computer 1 is such that the expansion board 3 is connected to an edge connector 4 mounted on an upper surface of a horizontally provided motherboard 2. I was

FIG. 8 shows a mounting structure of an extension board in another conventional personal computer 1. In this case, a sub-board 5 is mounted on a horizontal motherboard 2 and an edge connector 4 is mounted on the sub-board 5. And the extension board 3 was connected to the edge connector 4.

[0004]

In the conventional extension board mounting structure shown in FIG. 7, when the extension board 3 is attached or detached, the upper cover of the main body of the personal computer 1 must be removed. There is a disadvantage that it is troublesome work. In the mounting structure of the extension board shown in FIG. 8, it is not necessary to remove the upper cover of the main body housing of the personal computer 1 when attaching and detaching the extension board 3, and a relatively simple operation of removing the side cover is sufficient. There is a disadvantage that the mounting cost is high due to the mounting of the fifth.

[0005]

An edge connector according to the present invention comprises a slit (11 in FIG. 1) for inserting a terminal portion (6 in FIG. 1) of a printed circuit board (3 in FIG. 1), and a slit formed in the terminal portion. In the edge connector (10 in FIG. 1) in which connector terminals (14 in FIG. 4) for contacting the provided printed circuit board terminals are provided on the side surfaces of the slit, one end of the slit is opened (12 in FIG. 1). Wherein the terminal portion is moved parallel to the slit through the opening to be detachable from the slit, and preferably, the terminal portion is inserted into the slit and one end of the terminal portion is connected to the slit. Contacting the end of the slit opposite to the open portion, the connector terminal is brought into contact with the printed circuit board terminal, and one end of the terminal portion is in contact with the end of the slit opposite to the open portion. Terminal connection means for separating the connector terminal from the terminal portion in the slit if necessary, the terminal connection means being provided at an end of the slit opposite to the open portion so as to be movable in the direction of the slit. An extrusion part (22 in FIG. 5) having a slope (23 in FIG. 5);
Each of them is an intermediate part (29 in FIG. 2) beside the slit.
A swinging portion (20 in FIG. 2) rotatably supported by a support portion (21 in FIG. 2) on the housing and abutting on the slope of the pushing portion, and an inner edge facing the connector terminal. A pressing plate (2 in FIG. 2) provided so as to be movable in a direction perpendicular to the slit with an outer edge facing the intermediate portion.
4) The pushing portion is pushed by one end of the terminal portion and moves outward, whereby the swinging portion is pushed by the slope of the pushing portion and rotated, and the intermediate portion is pressed by the pressing portion. Can be configured to be pressed toward the slit and moved so that the pressing portion presses the connector terminal against a printed circuit board terminal on the terminal portion.

Further, the edge connector of the present invention is provided with a retaining means for restricting a moving range of the pushing section to a predetermined range, and a biasing means for moving the pushing section toward the slit. The pressing portion has at least an inner edge made of an elastic member, and a step portion for engaging the other end of the terminal portion is provided at an end of the slit opposite to the opening portion, and the connector terminal is flexible. It may be made of a conductor provided on a printed circuit board.

In the mounting structure of a printed circuit board according to the present invention, the above-described edge connector is mounted on a motherboard substantially parallel to the bottom surface of the housing, and the printed circuit board is attached to and detached from the edge connector through the side, back or front surface of the housing. .

[0008]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic perspective view showing a printed circuit board mounting structure according to an embodiment of the present invention. The edge connector 10 is attached to the upper surface of the motherboard 2 provided horizontally on the personal computer 1. The edge connector 10 has an open part 12 whose one end is open. The terminal part 6 on the edge of the extension board 3 is inserted into the slit 11 of the edge connector 10 from the open part 12 to connect the extension board 3 with the edge connector 10. The edge connector 10 is moved in a horizontal direction in parallel.
Can be connected. The opening portion 12 is wider toward the outside, and the wall surfaces on both sides of the opening portion 12 are rounded so that the terminal portion 6 can be easily inserted. Connect expansion board 3 to edge connector 10
Can be removed by pulling out the terminal portion 6 from the open portion 12 of the edge connector 10 and moving the expansion board 3 in the horizontal direction.

Therefore, the extension board 3 can be attached to and detached from the personal computer 1 from the rear side of the personal computer 1.
By simply removing the back cover of the, it is not necessary to remove the top cover, and it can be done with simple work.

FIG. 2 is a perspective view of the edge connector 10, and FIG. 3 is a perspective view of the edge connector 1 viewed from the side opposite to FIG.
FIG.

A pair of terminal plates 13 shown in FIG. 4 are attached to both sides of the slit 11 of the edge connector 10. The terminal plate 13 is made of a flexible printed board, and connector terminals 14 corresponding to the terminals of the terminal portions 6 of the expansion board 3 are arranged on an insulating substrate made of polyimide resin or the like. Excluding edge 1
6 is fixed to the housing of the edge connector 10, and the movable portion 15 is connected to the edge 16 only at the upper side.

On the outer periphery of the edge connector 10 are disposed a pair of rocking copper portions 20 having a substantially U-shape. The rocking portion 20 has a rod-shaped intermediate portion 24 along the side surface of the edge connector 10. The bent portion at both ends is the edge connector 1.
0 are supported by supporting portions 21 provided at both ends.

FIG. 5 is a longitudinal sectional view of the edge connector 10 in a state where the extension board 3 is inserted. An extruding portion 22 is slidably fitted in a square hole 28 provided at an end of the edge connector 10 opposite to the opening 12. The tip of the push-out portion 22 protrudes from the housing of the edge connector 10, and the upper side is a slope 23. The bent end of the oscillating portion 20 abuts the slope 23, and the bent portion of the oscillating portion 20 is in an oblique state in which the end is at the top and the intermediate portion 24 is at the bottom.

On the bottom surface of the end of the slit 11 on the side of the open portion 12, there is provided a step 25 which is raised by one step, and the gap between the inner surface of the end of the slit 11 on the opposite side to the open portion 12 and the step 25 is just extended. The length is set to accommodate the terminal portion 6 of the board 3.

FIG. 6 is a side sectional view of the edge connector 10 in a state where the extension board 3 is connected. Edge connector 1
The terminal plate 13 has an edge 16 on the inner wall on both sides of the slit 11.
Only the housing is fixedly attached to the housing. A pressing plate 24 is slidably fitted in long holes provided on both sides of the slit 11 of the housing of the edge connector 10, and an inner edge of the pressing plate 24 is in contact with the movable portion 15 of the terminal plate 13. The outside of the pressing plate 24 protrudes from the housing of the edge connector 10 and abuts on the intermediate portion 24 of the swinging portion 20.

In a normal state in which the extension board 3 is not inserted into the edge connector 10, the elasticity of the terminal plate 13 causes the movable portion 15 to be on a plane together with the edge portion 16, and the movable portion 15 causes the pressing portion 24 to move outward. The intermediate portion 29 is pushed outward, and the swing portion 20 is rotated about the support portion 21 so that the slope 2
The top end of the slit 3 descends and makes the rear end of the extrusion portion 22 project from the inner surface of the end of the slit 11. At this time, the distance between the movable parts 15 of the terminal plates 13 on both sides is sufficiently larger than the thickness of the terminal parts 6 of the printed circuit board 3, and the terminal parts 6 are not pressed by the movable parts 15.

When the terminal portion 6 of the extension board 3 is inserted from the opening portion 12 and moves in the slit 11 in the direction of arrow A, it is pushed by the end of the terminal portion 6 and the pushing portion 22 also moves in the direction of arrow A. The moving unit 20 is rotated about the support unit 21 with the tip pushed up on the slope 23, moves the intermediate unit 24 down, and moves the intermediate unit 24 in an oblique direction approaching the side surface of the edge connector 10.

Therefore, the pressing plate 24 is pushed by the intermediate portion 24 and moves inward, and the movable portion 15 of the terminal plate 13 is pressed against the terminal portion 6 of the extension board 3 so that the terminal 14 of the terminal plate 13 is connected to the extension board 13. Touch the terminal.

The extension board 3 is inserted into the slit 11, and one end of the terminal portion 6 abuts on the end face of the slit 11 on the side opposite to the opening 12, and then the extension board 3 is inserted into the slit 1.
1, and push the other end of the terminal portion 6 to the step portion 2.
5 so that the extension board 3 does not come out of the opening 12 and is positioned. Thus, the connection of the extension board 3 to the edge connector 10 is completed.

When the extension board 3 is detached from the edge connector 10, the opening portion 12 side of the extension board 3 is slightly lifted,
After releasing the engagement between the terminal portion 6 and the step portion 25, the extension board 3 is moved in a direction opposite to the direction at the time of insertion, and is pulled out from the slit 11 through the opening portion 12.

The pin 26 shown in FIG. 5 is implanted in the inner surface of a square hole 28 into which the push-out portion 22 of the housing of the edge connector 10 is fitted, and the tip of the pin 26 is provided in the elongated hole 27 provided on the upper surface of the push-out portion 22 To prevent the extruded portion 22 from coming off the square hole 28.

Although not shown, a plurality of terminal pins are implanted on the bottom surface of the housing of the edge connector 10.
Each pin is electrically connected to a corresponding terminal 14 of the terminal plate 13. In order to increase the elastic force of the terminal plate 13 pushing the pressing plate 24 outward, a leaf spring may be arranged on the outside of the terminal plate 13 so as to overlap. Alternatively, the connector terminals may be formed by stamping a plate spring, and these may be attached one by one to the inner surface of the slit 11.

A biasing means such as a spring for biasing the pressing plate 24 to the outside, a biasing means for bringing the intermediate portion 29 closer to the swinging portion 20 or the slit 11 to the pushing portion 23. You may attach the urging | biasing means which moves to a side.

The pushing portion may be guided in a groove provided in the housing, instead of being fitted in a hole provided in the housing of the edge connector. Also, even if one end of the terminal portion of the printed circuit board does not abut on the end surface on the side opposite to the opening portion of the slit, one end of the terminal portion is brought into contact with the rear end of the pushing portion at the outer limit of the movement range. In this state, the other end of the terminal portion may be located at a position just engaged with the step portion.

By attaching an elastic member such as rubber to the inner edge of the pressing plate, even if the printed board is warped, it is possible to press the connector terminal against each board terminal with a uniform force.

According to the present invention, if a large force is required for attaching and detaching the printed circuit board to and from the edge connector, the connector terminals are always arranged so as to be in contact with the terminal portions of the printed circuit board. It is not necessary to provide a terminal connecting means including a road portion, an extruding portion, and the like.

In the above-described embodiment of the present invention, the edge connector having the board terminals on both sides of the terminal portion and the connector terminals provided on both side surfaces of the slit 11 is shown. In this case, the connector terminal, the pressing plate, the swing portion, etc. may be provided only on one side.

The present invention is not limited to the case where an expansion board is connected to an edge connector, but can be applied to a case where various printed boards are connected to an edge connector.

The present invention is not limited to the case where a printed circuit board is mounted on a personal computer, but is also applicable to the case where a printed circuit board is mounted on various electronic device housings.

Further, by using the edge connector of the present invention, the edge connector can be attached to the motherboard parallel to the bottom surface of the housing, and the printed circuit board can be attached and detached not only through the rear surface but also through the side surface and the front surface of the housing.

[0032]

According to the edge connector of the present invention, by providing an open portion at one end of the slit, the terminal portion of the printed board can be moved in parallel with the slit through the open portion and the printed board can be attached to and detached from the edge connector. it can.

Further, by providing the terminal connection means,
The force required when attaching and detaching the printed circuit board to and from the edge connector can be reduced.

According to the mounting structure of the printed circuit board of the present invention, the printed circuit board is attached and detached not through the upper surface of the housing but through the side surface, the back surface or the front surface of the housing without providing a sub-board on the motherboard substantially parallel to the bottom surface of the housing. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a printed circuit board mounting structure according to an embodiment of the present invention.

FIG. 2 is a perspective view of the edge connector 10 in FIG.

3 is a perspective view of the edge connector 10 shown in FIG. 2 as viewed from the opposite side.

FIG. 4 shows a slit 11 of the edge connector 10 shown in FIG.
FIG. 4 is a perspective view of a pair of terminal plates 13 provided on both sides of FIG.

FIG. 5 is a longitudinal sectional view of the edge connector 10 shown in FIG. 3 in a state where the printed circuit board 3 is inserted.

6 is a side sectional view of the edge connector 10 shown in FIG. 3 in a state where the printed circuit board 3 is inserted.

FIG. 7 is a schematic perspective view showing a transparent structure of a conventional printed circuit board.

FIG. 8 is a perspective view schematically showing another conventional printed circuit board mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Personal computer 2 Motherboard 3 Printed circuit board 4 Edge connector 5 Sub board 6 Terminal part 10 Edge connector 11 Slit 12 Open part 13 Terminal board 14 Terminal 15 Movable part 16 Edge part 20 Swing part 22 Extruded part 23 Slope 24 Pressing plate 25 Step Part 29 Middle part

Claims (8)

[Claims] 1. An edge connector having a slit into which a terminal portion of a printed circuit board is inserted, and a connector terminal provided on the terminal portion for contacting a printer board terminal provided on a side surface of the slit. An edge connector, characterized in that the opening is an open portion, and the terminal portion is moved parallel to the slit through the open portion so as to be detachable from the slit. 2. If the terminal portion is inserted into the slit and one end of the terminal portion contacts an end of the slit opposite to the open portion, the connector terminal is brought into contact with the printed circuit board terminal, and 2. A terminal connecting means for separating said connector terminal from said terminal portion in said slit when one end of said portion is not in contact with an end of said slit opposite to said open portion. Edge connector. 3. An extruding portion provided at an end of the slit opposite to the open portion so as to be movable in a direction of the slit and having an inclined surface at a tip, and each of the terminal connecting means is provided on a side of the slit. A swinging portion having an intermediate portion rotatably supported by a support portion on the housing and abutting against a slope of the push-out portion, an inner edge facing the connector terminal, and an outer edge facing the intermediate portion. A pushing plate movably provided in a direction perpendicular to the slit, wherein the pushing portion is pushed by one end of the terminal portion and moves outward, so that the swing portion is a slope of the pushing portion. The intermediate portion presses and moves the pressing portion toward the slit, and the pressing portion presses the connector terminal against a printed circuit board terminal on the terminal portion. Edge connector. 4. A device according to claim 3, further comprising: retaining means for restricting a range of movement of said pushing section within a predetermined range; and biasing means for moving said pushing section toward said slit. The described edge connector. 5. The edge connector according to claim 3, wherein at least the inner edge of the pressing portion is made of an elastic member. 6. A step according to claim 1, wherein a step portion for engaging the other end of said terminal portion is provided at an end of said slit opposite to said open portion. Edge connector according to the above. 7. The connector according to claim 1, wherein the connector terminal is made of a conductor provided on the flexible printed circuit board.
7. The edge connector according to any one of items 1 to 6. 8. The edge connector according to claim 1, wherein the edge connector is mounted on a motherboard substantially parallel to a bottom surface of the housing, and a printed circuit board is passed through the side, the back, or the front of the housing to the edge connector. A printed circuit board mounting structure that is detachable.