JP2002343510A - Zif connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized ZIF connector with simple and solid structure. SOLUTION: A pair of base insulators 13 at receptacle connector 11 side, are enabled to rotate around an axis 14 as a center. A slider 24 made of metal is mounted to a receptacle housing 12 so that it can move in vertical direction between respective base insulators on the axis. When the slider is made to move upward, from released state to connected state, a cam parts 24A at both sides of the slider push cam receiving part 13B of respective base insulators. Accordingly, as the pair of base insulators rotate in the first direction and widen the gap between them at the upper part of the axis, receptacle signal contacts 15, held by the left side insulator, are connected to plug signal contacts 13 respectively, and receptacle ground contacts 16, held by the right side insulator, are connected to plug ground contacts 4 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
Multi-core ZIF (Zero InsertionFor)
ce).

[0002]

2. Description of the Related Art A first conventional ZIF connector will be described with reference to FIG. This connector is used by
No. 23914.

A large number of posts 61 arranged in two rows are fixed to a large number of through holes 62A formed in two rows on a back board 62 by soldering.

The housing 52 of the connector 51 has a section H
It is formed in a V-shape and has a large number of contacts 53 on both sides of the inside.
Is partitioned and held by the partition wall 52A. Housing 5
A large number of post locking holes 52B are formed at regular intervals on both sides of the housing 2, and the locking projections 61A of the posts 61 are locked in the respective post locking holes 52B, so that the housing 52 is mounted on the back board 62. Is done.

Each contact 53 has a contact portion 53A for contacting a printed circuit board (not shown) and an opening / closing operation projection 53B.
The contact portion 53C with the post 61 and the driven protrusion 5
3D.

The slider 54 has guide grooves 54A on both sides, and a cam 54B is formed at the tip of each guide groove 54A to move the driven projection 53D of the contact 53 up and down.

A tunnel 52C for sliding the slider 54 is formed at a lower center inside the housing 52, and a guide groove 52D for moving each contact 53 up and down is formed on both sides of the tunnel 52C. Each post accommodating groove 52E is formed between the inner wall surface on both sides of the 52 and each guide groove 52D. Further, the housing 52
A printed board insertion groove 52F is formed in the upper center of the contact hole, and contacts 5 are formed on both sides of the printed board insertion groove 52F.
A step 52G that contacts the third opening / closing operation projection 53B is formed.

The operation of connecting the contact portion 53A of each contact 53 to a printed circuit board will be described. FIG. 3 (a)
Indicates the connection state of each contact 53 (the right half position in FIG. 3B, but the printed circuit board is not shown).
Is shown. Slider 54 into tunnel 52 of housing 52
When inserted into C, both cams 54B of slider 54 sequentially push up driven projections 53D of contacts 53 on both sides upward. Then, the opening / closing operation projection 5 of each contact 53
3B is displaced outward by being pushed by the step 52G of the housing 52. That is, each contact 53 is formed as shown in FIG.
From the right half position to the left half position.

As a result, the contact portion 53 of each contact 53
A retracts from inside the printed board insertion groove 52F.

In this state, when the printed board is inserted into the printed board insertion groove 52F, the printed board is inserted without making contact with the contact 53A of each contact 53.

Subsequently, when the slider 54 is removed from the tunnel 52C of the housing 52, both cams 54B of the slider 54 are driven by the driven projections 53D of the contacts 53 on both sides.
Are sequentially pushed down. Then, the opening / closing operation projection 53B of each contact 53 is displaced inward along the step 52G of the housing 52. That is, each contact 53
Is displaced from the left half position to the right half position in FIG. As a result, the contact portion 5 of each contact 53
3A is connected to a printed circuit board.

FIG. 4 shows a second conventional ZIF connector.
This will be described with reference to (a) to (d).

(A) and (b) are of the normally open type. The pair of contacts 71 are fixed to the backboard 72 so as to face each other. A pair of notched circular cams 73,
74 can change the distance between the pair of contacts 71 to be wider or narrower. In the open state of FIG.
Can be inserted between the pair of contacts 71 without contacting the pair of contacts 71. When the cam 73 is rotated to the left by a slight angle and the cam 74 is rotated to the right by a slight angle, the state shown in FIG. 3B is reached, and the pair of contacts 71 is connected to the printed circuit board 75.

(C) and (d) are of normally closed type. In the open state (c), the printed circuit board 75 does not contact the pair of contacts 71, but
Can be inserted between Track-shaped cam 76
Is rotated by 90 °, the state shown in FIG. 4D is reached, and the pair of contacts 71 is connected to the printed circuit board 75.

[0015]

SUMMARY OF THE INVENTION The first prior art ZI
In the F connector, since the slider comes into direct contact with the contact, in order to maintain insulation, the slider is made of either plastic or metal and coated with plastic. . Therefore, when the number of ZIF connectors becomes large, a problem occurs in strength and the structure becomes complicated.

In the second conventional ZIF connector, both the normally open type and the normally closed type require a large displacement of the contact, so that the contact becomes long, which hinders miniaturization of the connector.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned disadvantages of the conventional ZIF connectors, and to provide a small-sized ZIF connector having a simple and robust structure.

[0018]

The present invention employs the following means to solve the above-mentioned problems.

1. A plurality of contacts, a pair of base insulators for holding the respective contacts, a slider, and a housing, each of the base insulators is rotatably and symmetrically supported by the housing, and the slider is Each base insulator has a cam portion, and each of the base insulators has a cam receiving portion. When the cam portion operates the cam receiving portion, each of the base insulators rotates, and a contact portion of each of the contacts comes into contact with the other side. A first direction for connection with the connector or the first direction;
A ZIF connector that moves in a second direction opposite to the direction of.

2. 2. The ZIF connector according to claim 1, wherein each of the base insulators is held by the housing so as to be adjustable in position.

3. The ZIF connector according to claim 1, wherein the slider is made of a metal material.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS ZIF according to one embodiment of the present invention
The connector will be described with reference to FIGS.

The ZIF connector comprises a plug connector 1 and a receptacle connector 11.

In the plug connector 1, on one side inside the plug housing 2, a large number of plug signal contacts 3 and plug ground contacts 4 are alternately held in a line, and on the other side, a single line is provided. And a large number of plug signal contacts 3 and plug ground contacts 4 are alternately held, and each plug signal contact 3 and each plug ground contact 4 are arranged in a staggered manner. On one surface outside the plug housing 2,
When several press-fit pins 5 are formed and the plug connector 1 is fixed to the printed board 41, each press-fit pin 5 is pressed into each hole 41 </ b> A formed in the printed board 41. Also,
Each plug signal contact 3 and each plug ground contact 4 are soldered to a printed circuit board 41.

The plug housing 2 is inserted into the receptacle housing 12 of the receptacle connector 11.

The pair of base insulators 13 are configured symmetrically and rotatably supported on a shaft 14. One (left) base insulator 13 holds a large number of receptacle signal contacts 15 and receptacle ground contacts 16 alternately in a line, while the other (right) base insulator 13 has one.
Many receptacle signal contacts 1 aligned in a row
5 and the receptacle ground contacts 16 are alternately held. Each receptacle signal contact 1
Root of 5 and each receptacle ground contact 16
Is fixed to each base insulator 13, and the tip of each receptacle signal contact 15 and the tip of each receptacle ground contact 16 can be displaced in the left-right direction in FIG. 2 with respect to each base insulator 13. Each base insulator 13 holds a number of coaxial cables 17 by cable clamps 18, respectively. The center conductor of each coaxial cable 17 is soldered to each receptacle signal contact 15, and the outer conductor of each coaxial cable 17 is soldered to each receptacle ground contact 16.

Projection 13 of each base insulator 13
A fits into a groove 20 formed between the receptacle housing 12 and a cover 19 covering about half of each base insulator 13 and the like, and each base insulator 13 is attached to the receptacle housing 12 as described later. I have.

The pair of base insulators 13 are arranged with respect to the receptacle housing 12 in a pitch direction of each receptacle signal contact 15 and each receptacle ground contact 16 (a direction orthogonal to the plane of FIG. 2) and a thickness direction of the connector (FIG. 2). (Left and right directions on the paper surface). Therefore, even if there is a displacement between the plug connector 1 and the receptacle connector 11, when the connectors 1 and 11 are fitted, the pair of base insulators 13 can slightly adjust the position with respect to the plug housing 2. it can. Therefore, each receptacle signal contact 15 can be appropriately connected to each plug signal contact 3, and each receptacle ground contact 16 can be appropriately connected to each plug ground contact 4.

Each coaxial cable 17 is held by a cable clamp 22 on a cable guide 21 fixed to the receptacle housing 12. Each coaxial cable 17 is covered and protected by a shrink tube 23. Therefore, even if an unexpected external force such as tension is applied to each coaxial cable 17, the soldered portions of each central conductor and each external conductor, each receptacle signal contact 15, and each receptacle ground contact 16 are not affected.

The slider 24 made of metal is shown in FIG.
It is mounted on the receptacle housing 12 so as to be vertically movable between a pair of base insulators 13 on the shaft 14. The slider 24 is moved upward from the position shown in FIG. 2B to the position shown in FIG. Then, the cam portions 24A on both sides of the slider 24 press the cam receiving portions 13B of each base insulator 13. Therefore,
At the upper part of the shaft 14, a pair of base insulators 1
Since 3 rotates in the first direction, the interval is widened, so that each receptacle signal contact 15 is connected to each plug signal contact 3 and each receptacle ground contact 16 is connected to each plug ground contact 4. That is, the receptacle connector 11 is fitted with the plug connector 1.

The slider 24 is moved from the position shown in FIG.
It is moved downward to the position (b). Then, the cam portions 24A on both sides of the slider 24 release the pressing of the cam receiving portions 13B of the respective base insulators 13. Therefore, in the upper part of the shaft 14, the pair of base insulators 13 is rotated in the second direction, so that the interval is narrowed. Therefore, each receptacle signal contact 15 is connected to each plug signal contact 3, and each receptacle ground contact 16 is connected to each plug ground. The contact 4 is separated from each other. That is, the receptacle connector 11 is separated from the plug connector 1.

In the open state shown in FIG. 2B, each receptacle signal contact 15 and each plug signal contact 3, and each receptacle ground contact 15 and each plug ground contact 4
Are not hindered as a ZIF connector, even if they are not in contact with each other or lightly.

The receptacle connector 11 is fixed to a mounting panel 31 by bolts 32 and nuts 33.

[0034]

As is apparent from the above description, the present invention has the following advantages.

1. Since the base insulator holding the contact is operated by the slider, the slider can be made of metal. Therefore, the structure of the ZIF connector becomes simple and robust, and the number of cores can be increased.

2. Since the base insulator holding the contact is operated and moved, the length of the contact is reduced. Therefore, the ZIF connector is reduced in size and the high-frequency characteristics are improved.

[Brief description of the drawings]

FIG. 1 is a front view of a ZIF connector according to an embodiment of the present invention.

2 is a sectional view taken along line AA in FIG. 1,
(A) shows a connected state, and (b) shows an open state.

FIGS. 3A and 3B show a first conventional ZIF connector, wherein FIG. 3A is a perspective view and FIG. However,
The left half of (b) is in the open state, and the right half of (b) is in the connected state, and the printed circuit board is not shown in any case.

4A and 4B are schematic side views of a second conventional ZIF connector, wherein FIG. 4A is a normally open type open state, FIG. 4B is a normally open type closed state, and FIG. 4C is a normally closed type open state. (D) shows a normally closed type closed state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plug connector 2 Plug housing 3 Plug signal contact 4 Plug ground contact 5 Press-fit pin 11 Receptacle connector 12 Receptacle housing 13 Base insulator 13A Projecting part 13B Cam receiving part 14 Axis 15 Receptacle signal contact 16 Receptacle ground contact 17 Coaxial cable 18 Cable clamp 19 Cover 20 Groove 21 Cable Guide 22 Cable Clamp 23 Shrink Tube 24 Slider 24A Cam 31 Mounting Panel 32 Bolt 33 Nut 41 Printed Circuit Board 41A Hole

Claims (3)

[Claims] A plurality of contacts; a pair of base insulators for holding the contacts; a slider; and a housing, wherein the base insulators are rotatably and symmetrically supported by the housing. The slider has a cam portion, and each of the base insulators has a cam receiving portion. When the cam portion operates the cam receiving portion, each of the base insulators rotates, and A ZIF connector wherein the contact portion moves in a first direction for connecting to a mating connector or in a second direction opposite to the first direction. 2. The ZIF connector according to claim 1, wherein each of said base insulators is held by said housing so as to be adjustable in position. 3. The ZIF connector according to claim 1, wherein said slider is made of a metal material.