JP3122935B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly, to a connector suitable for high-frequency signal transmission and high-density mounting.

[0002]

2. Description of the Related Art With the increase in the density of electronic devices, connectors suitable for high-density mounting, for example, connectors used as packages for mounting LSIs used in these electronic devices have been used. As such a connector, for example, a Land Grid Array (Land Grid Array)
y: LGA). This LGA
In this example, a large number of flat contacts (electrode pads) are formed in an array or the like on the bottom surface of the package.

Conventionally, in such an LGA, a contact whose contact has a beam-like structure having a spring property for contact is used.

[0004]

However, in the case of a conventional connector such as the LGA described above, the contact is
The mechanical requirements for obtaining the required spring properties result in relatively long and narrow shapes. However, when the contact is elongated, the shape of the contact becomes more unfavorable than an ideal shape for transmitting an electric signal.

That is, when the contact has such an elongated shape, especially when transmitting a high-frequency signal, the inductance becomes large and the contact becomes susceptible to external noise and the like, which causes a problem that the signal deteriorates. there were. Further, since the contact is long, it is difficult to reduce the physical size of the connector, which causes a problem that the size of an electronic device using this type of connector is increased.

An object of the present invention is to provide a connector that can suppress deterioration of a high-frequency signal to a small level and is suitable for high-density mounting.

[0007]

According to the present invention, there is provided a connector comprising: a first side connection object having a first side terminal on one surface;
A second side terminal disposed corresponding to the side terminal, and a second side terminal interposed between the first side connection object and a second side connection object facing the first side connection object in a direction orthogonal to the one surface; A connector for connecting a first-side connection object and the second-side connection object, the connector including a first-side housing, a first-side contact, a second-side housing, and a second-side contact; The first side housing movably holds the first side contact in correspondence with the first side terminal, the first side contact has a tapered first side contact portion, and the first side contact portion. has a first side contact surface exchange difference obliquely to parallel lines and directions of the orthogonal, the second side housing, the second side contact in correspondence to the second terminal Freely held, the second side contact receives the first side contact portion A second contact part recessed cormorants, second side contact portion has a second side contact surface that contacts the parallel and the first side contact surface intersects obliquely with respect to the line segment ,
The first side contact portion has a substantially conical shape, and the first side contact portion has a substantially conical shape.
The surface is a tapered surface of the outer surface of the first side contact portion,
The second side contact portion is recessed in a substantially conical shape, and
The side contact surface is a tapered surface on the inner surface of the second side contact portion.
There is a feature.

The connector of the present invention also has a first side on one side.
A first side connection object having a terminal and a pair of the first side terminal;
A second side terminal disposed in the
A second side contact facing the first side connection object in an intersecting direction;
Interposed between the first connection object and the connection object.
A connector for connecting to the second side connection object,
One side housing, first side contact, and second side housing
And a first side housing including a first contact and a second side contact.
The first side contour corresponding to the first side terminal.
And the first side contact is
A thin first side contact portion, wherein the first side contact portion is
The first side obliquely intersects a line parallel to the intersecting direction
A contact surface, wherein the second side housing is the second side end
The second side contact is held freely so as to correspond to the child
And the second side contact receives the first side contact portion.
A second side contact portion depressed so as to be inserted therein;
The part obliquely intersects the parallel line segment and
A second side contact surface that is in contact with the first side contact surface;
The contact is spherical, and the first side contact portion is
A substantially hemispherical portion on one side of the first side contact,
The first side contact surface is a curved surface on the outer surface of the first side contact portion.
Wherein the second side contact portion is substantially hemispherically recessed,
The second side contact surface has a curved inner surface of the second side contact portion.
Surface.

Preferably, the first side contact is spherical, and the first side contact portion is a substantially hemispherical portion on one side of the first side contact, and the first side contact surface is Is a curved surface of an outer surface of the first side contact portion, the second side contact portion is substantially hemispherically concave, and the second side contact surface is an inner surface of the second side contact portion. Is a curved surface.

[0010]

Embodiments of the present invention will be described below.

FIG. 1 shows a connector 3 according to a first embodiment of the present invention. The connector 3 includes an insulating first side housing 31, a conductive first side contact 32, an insulating second side housing 33, a conductive second side contact 34, and the like.

Referring further to FIG. 4, the first side contact 32 has a substantially conical and tapered first side contact portion 3.
2a and a substantially cylindrical first side terminal portion 32c are integrally formed. The outer side surface of the first side contact portion 32a is a first side contact surface 32b which is a tapered surface.

The first side housing 31 has a terminal portion insertion hole 31b through which the first side terminal portion 32c is inserted. The second side housing 33 includes the second side contact 3.
A contact accommodating portion 33a in which 4 is movably accommodated;
And a terminal portion insertion hole 33b formed continuously below the contact accommodating portion 33a.

Referring further to FIG. 5, the second side contact 34 is formed at the lower end of the second side contact portion 34a and the second side contact portion 34a recessed in a substantially conical shape so as to receive the first side contact portion 32a. The formed second side terminal portion 34c is formed integrally. A second side contact surface 34b, which is a tapered surface, is formed on the inner side surface of the second side contact 34.
Further, the second side contact 34 is formed with a slit 34d extending vertically.

Here, the connector 3 is disposed between the first-side connection object 1 and the second-side connection object part 2 as shown in FIG. In the illustrated example, a printed circuit board is used for each of the first connection object 1 and the second connection object 2. Also, the first and second side connection objects 1, 2
May be a multi-chip module (MCM) or an IC.

The first connection object 1 has a first terminal 1b on one surface 1a on the side facing the connector 3. Furthermore, the second side connection object 2 has a second side terminal 2b arranged corresponding to the first side terminal 1b. The first side terminal 1b and the second side terminal 2b are lands formed on a printed circuit board in the illustrated example.

The connector 3 of this embodiment is provided between the first side connection object 1 and the second side connection object 2 in the direction y orthogonal to the one surface 1a. It is used to connect the connection object 1 and the second-side connection object 2.

Further, as shown in FIG. 1, in a state where the first side connection object 1 and the second side connection object 2 are arranged above and below the connector 3, the first side contact surface 32b of the first side contact 32 is provided.
Intersects obliquely with the line segment parallel to the direction y. More specifically, such an intersection angle is appropriately set in an angle range larger than 0 ° and smaller than 90 °.
Similarly, the second side contact portion 34a obliquely intersects a line segment parallel to the direction y.

The connector 3 constructed as described above
Then, the first side housing 31 movably holds the first side contact 32 at a position corresponding to the first side terminal 1b, and the second side housing 33 holds the second side contact 32 at a position corresponding to the second side terminal 2b. The side contact 34 is held movably.

The operation of the connector 3 according to the first embodiment having the above configuration will be described with reference to FIG. That is, the connector 3 is first placed on the upper surface of the second connection object 2 such that the second contact 34 comes into contact with the second terminal 2b as shown in FIG. 2A. Next, FIG.
As shown in FIG.
Is placed such that the first side terminal 1b is in contact with the first side terminal portion 32c. The first connection object 1 placed on the upper surface of the connector 3 is pressed against the connector 3 by the force F. Then, the first side contact portion 32a of the first side contact 32 comes into contact with the second side contact portion 34a of the second side contact 34, and as a result, the first side connection object 1 and the second side connection object Are connected via the first side contact 32 and the second side contact 34 of the connector 3.

Here, when the lower second connection object 2 is fixed and a force F is applied to the upper first connection object 1 from above, the second connection object 2 from the first contact 32 of the connector 3 The force is applied to the side contact 34, and the second side contact 34 is displaced outwardly in the circumferential direction with elasticity (spring property). At this time, the balance between the force R acting on the second side contact surface 34b and its reaction force P is as shown in FIG. 3, and the contact surfaces 34b and 32b on which these forces R and P act are inclined surfaces. Therefore, these forces R and P are dispersed into horizontal forces Rx and Px and vertical forces Ry and Py. And the horizontal force R
x and Px act as contact forces between the first side contact 32 and the second side contact 34. On the other hand, the vertical force Ry,
Py is the contact force between the first side terminal 1b of the first side connection object 1 and the first side terminal portion 32c of the first side contact 32, and the second side terminal 2b of the second side connection object 2 and the second side terminal 2b. The second contact 34 acts as a contact force with the second terminal 34c.

Next, a connector according to a second embodiment of the present invention will be described with reference to FIGS. In this connector 3, as in the first embodiment, the first side housing 3
1, a first contact 32, a second housing 33, and a second contact 34.

Here, in the connector 3 according to the second embodiment, the first side contact 32 is spherical, and the first side contact portion 32a is a substantially hemispherical portion on one side of the first side contact 32. The first side contact surface 32b is a curved surface of the outer side surface of the first side contact portion 32a, the first side terminal portion 32c is a top portion of the first side contact 32, and the second side contact portion 34a is substantially hemispherically recessed. Further, the second side contact surface 34b is
4a, and a contact receiving portion 31 for the first side contact 32 on the first side housing 31.
The difference from the first embodiment is that a is formed. Other points are the same as those of the first embodiment, and therefore, the description is omitted for convenience.

The operation of the connector 3 according to the second embodiment having the above configuration will be described with reference to FIG. That is, the connector 3 is also mounted between the first-side connection object 1 and the second-side connection object 2. Then, the second connection object 2 located on the lower side is fixed, and a force F is applied to the first connection object 1 located on the upper side from above.

Then, the first side contact 32 pressed by the first side connection object 1 applies a force to the second side contact 34. As a result, the first side terminal portion 3 of the first side contact 32
2c and the first side terminal 1b of the first side connection object 1 are in contact with each other, and the first side contact portion 32a of the first side contact 32 is
The second side contact portion 34a of the side contact 34 comes into contact with the second side terminal portion 34c of the second side contact 34 and the second side terminal 2b of the second side connection object 2 comes into contact. Therefore, the first-side connection object 1 and the second-side connection object 2 are connected via the connector 3.

FIGS. 9 and 10 show other examples of the shape of the second side contact 34 in the second embodiment. That is, the second side contact 34 shown in FIG. 8 has a simple flat shape, but the second side contact 34 shown in FIG.
By providing a slit 34d and further cutting off the bottom of the contact 34 to form a cutout 34e, the overall shape was made substantially conical. With such a conical shape, the spring property is improved, and the same elastic contact as the second side contact 34 of the first embodiment is performed at the time of connection.

In the embodiment shown in FIG. 10, the slit 34d is formed in the shape of the second side contact 34 shown in FIG.
Are provided radially, and in the example shown, six are provided, thereby similarly improving the spring property.

[0028]

As described above, in the connector of the present invention,
Since the first side contact and the second side contact are brought into pressure contact with each other to have a spring property necessary for the contact, it is not necessary to make the contact long and thin to provide the contact with the spring property as in the related art. Therefore, the inductance at the contact can be reduced, and the deterioration of the high-frequency signal can be reduced. Further, the physical size can be reduced by suppressing the height and the area, and the mounting density can be increased.

[Brief description of the drawings]

FIG. 1A is a longitudinal sectional view of a connector according to a first embodiment of the present invention, and FIG. 1B is a plan view of the same.

2A is an explanatory diagram of a state before connection of the connector of FIG. 1, and FIG. 2B is an explanatory diagram of a state after connection.

FIG. 3 is an explanatory diagram of a contact force at the time of connection using the connector of FIG. 1;

4A is a plan view of a first-side contact constituting the connector of FIG. 1, and FIG. 4B is a side view of the same.

5 (a) is a plan view of a second side contact constituting the connector of FIG. 1, and FIG. 5 (b) is a side view of the same.

FIG. 6A is a longitudinal sectional view of a connector according to a second embodiment of the present invention, and FIG. 6B is a plan view of the same.

7A is an explanatory diagram of a state before connection of the connector of FIG. 6, and FIG. 7B is an explanatory diagram of a state after connection.

8 (a) is a plan view of a second contact forming the connector of FIG. 6, and FIG. 8 (b) is a partially cutaway side view.

9 (a) is a plan view of another example of the second side contact constituting the connector of FIG. 6, and FIG. 9 (b) is a partially cutaway side view.

10 (a) is a plan view of another example of the second side contact constituting the connector of FIG. 6, and FIG. 10 (b) is a partially cutaway side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st side connection object 1a one surface 1b 1st side terminal 2 2nd side connection object 2a one surface 2b 2nd terminal 3 Connector 31 1st side housing 31a Contact receiving part 31b Terminal part insertion hole 32 1st side contact 32a First side contact portion 32c First side terminal portion 33 Second side housing 33a Contact receiving portion 33b Terminal portion insertion hole 34 Second side contact 34a Second side contact portion 34b Second side contact surface 34c Second side terminal portion 34d Slit 34e cutout

Claims (2)

(57) [Claims] An object having a first side connection object having a first side terminal on one surface and a second side terminal arranged corresponding to the first side terminal, wherein the second side terminal is arranged in a direction orthogonal to the one surface. A connector interposed between a first connection object and a second connection object facing the first connection object and connecting the first connection object and the second connection object, the first housing And a first side contact, a second side housing, and a second side contact, wherein the first side housing movably holds the first side contact in correspondence with the first side terminal, The first side contact has a tapered first side contact portion, and the first side contact portion has a first side contact surface obliquely intersecting a line segment parallel to the orthogonal direction. The second side housing is configured to play the second side contact in correspondence with the second side terminal. The second side contact has a second side contact portion depressed to receive the first side contact portion, the second side contact portion being oblique to the parallel line segment. And intersects with said first
A second side contact surface that contacts the first side contact surface , wherein the first side contact portion is substantially conical;
The surface is a tapered surface of the outer surface of the first side contact portion,
The second side contact portion is recessed in a substantially conical shape, and
The side contact surface is a tapered surface on the inner surface of the second side contact portion.
Connector, characterized in that there. 2. A first side connection pair having a first side terminal on one surface.
An elephant and a second side arranged corresponding to the first side terminal
A first side contact in a direction orthogonal to the one surface having a terminal;
Interposed between the connection object and the opposing second-side connection object.
The first side connection object and the second side connection object
A connector for connection, comprising a first housing, a first contact, and a second housing.
And a second side contact, the first side housing corresponding to the first side terminal.
The first side contact is held movably, and the first side contact has a tapered first side contact portion.
The first side contact portion is a line segment parallel to the orthogonal direction.
A first side contact surface that obliquely intersects with the second side terminal, and the second side housing corresponds to the second side terminal.
The second side contact is movably held, and the second side contact receives the first side contact portion.
A second side contact portion depressed so that the second side contact portion
Crosses the parallel line segment obliquely and
A second side contact surface that is in contact with a first side contact surface, wherein the first side contact is spherical;
The part is a substantially hemispherical part on one side of the first side contact.
Wherein the first side contact surface is outside the first side contact portion.
The second side contact portion is substantially hemispherically concave.
And the second side contact surface is formed within the second side contact portion.
A connector having a curved side surface .