JPH1092531A - Card edge connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the force required in connecting and disconnecting a card edge board to/from a card edge connector. SOLUTION: A pair of side plates 2, 3 are provided with hinges so as to be rotated around a shaft 4 for opening and closing, and a card edge board 1 is connected and disconnected to/from a card edge connector in an opened state of the side plates 2, 3. An inside surface of each side plate 2, 3 is formed with each shallow recess 5, 6, in which an edge of the card edge bard 1 is to be fitted. The edge of the card edge board 1 is provided with a terminal 7 in both surfaces thereof, and an inner surface of each recess 5, 6 is provided with a contact 8. A latch 9 formed of a plate spring is fixed to the side plate 3, and a claw 10 provided in the latch 9 is hooked on the side plate 2 so as to maintain the side plates 2, 3 in a closed state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card edge connector.

[0002]

2. Description of the Related Art In a conventional card edge connector, a large number of contacts made of leaf springs are arranged in two rows, and a card edge board made of a printer board is pushed in between these rows while bending many contacts. The terminal provided on the edge of the contact was in contact with the corresponding contact.

A large force is required to insert and remove a card edge board from such a card edge connector.
The card edge connector that requires a small insertion / extraction force is actually open flat 2
As described in Japanese Patent Application Publication No. 76492, this card edge connector has a complicated structure and requires many parts and a large space.

[0004]

A first problem is that a considerably large force is exerted when the card edge substrate is detached and attached, except for those having a particularly complicated structure such as that described in Japanese Utility Model Laid-Open No. 2-76492. It is necessary.

The reason is that the contacts press the terminals of the card edge substrate with a sufficient force so as not to cause a contact failure between the terminals of the card edge substrate and the contacts of the card edge connector.

A second problem is that the electrical contact between the terminal of the card edge board and the contact of the card edge connector is easily damaged.

The reason is that, as described in the first problem, a large force is applied when inserting and removing the card edge substrate.

[0008] The object of the present invention meets the following three points.

[0009] The force at the time of attaching and detaching the card edge board to and from the card edge connector is reduced.

It is possible to prevent the electrical contact between the card edge board and the card edge connector from being damaged.

[0011] The manufacturing cost of the card edge connector is reduced.

[0012]

The card edge connector of the present invention comprises a shaft, first and second side plates which rotate about the shaft to open and close with each other, and the first and second closed sides. The first of the edges of the card edge substrate sandwiched between the plates
Positioning means for determining a position with respect to the second side plate, and a terminal provided on an edge of a card edge substrate sandwiched between the first and second side plates closed by being positioned by the positioning means. The first and second
And a contact provided on at least one of the side plates, and the positioning means may be a concave portion provided on at least one of the first and twenty-first side plates and into which the edge of the card edge substrate is fitted.

[0013]

Next, the present invention will be described in detail with reference to the drawings.

1 and 2 are a perspective view and an AA sectional view, respectively, showing a card edge connector according to an embodiment of the present invention with a card edge board 1 mounted thereon. In the card edge connector of FIG. 1, a pair of side plates 2 and 3 that rotate about a shaft 4 and open and close with each other are formed in a hinge shape.

The attachment / detachment of the card edge board 1 to / from the card edge connector is performed with the side plates 2 and 3 opened.
Is a perspective view showing this state.

The inner surfaces of the side plates 2 and 3 are provided with shallow recesses 5 and 6 into which the edges of the card edge substrate 1 are fitted. Terminals 7 on both sides of the edge of the card edge substrate 1
Are provided on the inner surfaces of the concave portions 5 and 6 in contact with the terminals 7 and connected to wiring (not shown) of an external contact cable.

A latch 9 made of a leaf spring is fixed to the side plate 3 and a pawl 10 provided on the latch 9 is hooked on the side plate 2 to maintain the side plates 2 and 3 in a closed state. To open the side plates 2 and 3, lift the tip of the latch 9
0 may be separated from the side plate 2.

The method of mounting the card edge substrate 1 on the card edge connector is as follows. With the side plates 2 and 3 open, the edge of the card edge substrate 1 is
After securing the positional relationship between the card edge board and the card edge connector, the side plates 2 and 3 are closed, and the pawl 10 of the latch 9 is hooked on the side plate 2.

The card edge connector according to the present embodiment
Since the side plates 2 and 3 are opened and closed to attach and detach the card edge substrate 1, a force for pushing the card edge between the contacts is not required for attaching and detaching the substrate.

It should be noted that the side plates 2, 3 can be opened and closed many times,
In order to extend the life of the card edge connector, the shaft 4 must be made of a material that is not easily broken.

The contact 8 is formed by selectively etching the metal foil adhered to the inside of the concave portions 5 and 6. Alternatively, a leaf spring may be attached to the inner surfaces of the concave portions 5 and 6 to form the contact 8.

The card edge substrate 1 is provided only on one of the side plates 2 and 3 without providing the concave portions 5 and 6 on both the side surfaces 2 and 3.
May be provided. However, the recesses 5 and 6 are necessary as positioning means for determining the position of the card edge substrate with respect to the side plates 2 and 3. For example, instead of the recesses 5 and 6, positioning pins are provided on at least one of the side plates 2 and 3. Alternatively, a positioning hole may be provided in the card edge substrate 1 corresponding to this pin.

The means for closing the side plates 2 and 3 is not limited to the latch 9 but may be a screw, for example.

[0024]

The first effect is that the card edge board can be attached to and detached from the card edge connector without applying a force for pushing or pulling out the card edge board.

The reason is that the card edge board is attached to and detached from the card edge connector with the first and second side plates opened.

A second effect is that it is possible to prevent contact damage at the electrical contact portion between the card edge board and the card edge connector.

The reason for this is that a force for inserting and removing the card edge board is required, so that it is not affected by the force for inserting and removing the card edge board unlike the conventional card edge connector.

The third effect is that it can be manufactured at low cost and does not require a large space.

The reason is that the connector does not have a complicated structure like the connector described in Japanese Utility Model Application Laid-Open No. 2-76492 and the number of parts is not large.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a card edge board 1 of a card edge connector according to an embodiment of the present invention is mounted.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a perspective view of the card edge connector of FIG. 1 in a state where side plates 2 and 3 are opened;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Card edge board 2, 3 Side plate 4 Axis 5, 6 Recess 7 Terminal 8 Contact

Claims (2)

[Claims] 1. A shaft, first and second side plates rotating about the shaft to open and close with each other, and the first and second closed plates
Positioning means for determining the position of the edge of the card edge substrate sandwiched between the first and second side plates, and the first and second side plates closed by being positioned by the positioning means. A card edge connector comprising: a contact provided on at least one of the first and second side plates so as to contact a terminal provided on an edge of a card edge substrate. 2. The card edge connector according to claim 1, wherein the positioning means is a recess provided on at least one of the first and twenty-first side plates and into which the edge of the card edge board is fitted.