JPH09245911A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector in which contact force of contacts at the time of engagement can be securely obtained. SOLUTION: A connector is composed of a housing 10 formed to receive a plug connector 2 in an engagement space surrounded by plates of side walls 12, 13 to be engaged, and plural receptacle contacts 19 held by this housing 10. This receptacle contact 29 is composed to have a contact part 19a, a holding part 19b, and a connection part 19c, and the contact part 19a is formed to be extended vertically along an inner surface of the side wall part 12, 13 to get in contact with a plug contact 29 of the plug connector 2 engaged in the engagement space 16. The holding part 19b is formed to be extended in the same direction as the contact part 19a along an outer surface of the side wall part 12, 13, and the contact part 19a and the holding part 19b are connected to each other by a connection part 19c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector in which a mating connector, an IC unit or the like can be received and fitted in a fitting space.

[0002]

2. Description of the Related Art A printed circuit board having a large number of electronic components mounted on its surface is becoming smaller and smaller. Therefore, it receives a connector for energizing the printed circuit board and transmitting / receiving signals, and an IC unit. It is desirable to make the connector (socket) for holding the device as small as possible. As an example of the connector mounted on the printed circuit board as described above, there is a two-piece connector including a receptacle connector and a plug connector, and a receptacle connector in the two-piece connector is as shown in FIG.

The receptacle connector 9 is composed of a housing 90 having a fitting opening 97 connected to the fitting space 96 and having an opening upward, and a plurality of contacts 99 held by the housing 90. Housing 9
0 is a flat plate-shaped bottom portion 91 extending in the left-right direction, and front, rear, left-right side wall portions 92 that surround the four sides of the bottom portion 91 and extend upward.
˜94 (the left side wall is not shown in FIG. 5).

On the inner surfaces of the front and rear side wall portions 92 and 93, the receptacle contacts 99 that come into contact with the plug contacts 29 attached to the receptacle connector 2 are formed.
Is press-fitted and held from the lower surface side of the bottom portion 91 through the through holes 91a and 91b. The contact 99 has a contact portion 99a located inside the side wall portions 92 and 93, and a lead portion 99d extending outward from the lower end portion of the contact portion 99a and protruding to the outside of the housing 90. It is formed into a shape.

The plug connector 2 is received and fitted in the fitting space 96 of the receptacle connector 9 provided with the contact 99 thus formed. Here, the plug contact 29 of the plug connector 2 is formed of an elastic material so as to spread outward, and when the receptacle contact 9 is received and fitted in the receptacle connector 9, the receptacle contact 9 is formed.
It is possible to obtain a predetermined contact force between 9 and 9.

[0006]

In the receptacle connector 9 formed as described above, the front and rear side wall portions 92 and 93 are formed in a thin plate shape in order to make the outer dimensions as small as possible. Therefore, when the plug connector 2 is fitted, the side wall portions 92 and 93 are pushed outward (expanded), and particularly when the number of contacts is large (the lateral dimension of the side wall portion is long). Side wall portions 92, 93
The bulge near the center in the left-right direction becomes larger. Therefore, the contacts 29 arranged in this portion,
There is a problem that the contact force between the 99s is reduced.

The present invention has been made in view of the above problems, and has a small outer dimension, that is, a connector having a thin side wall portion for forming a fitting space, and a multi-pole (side wall of a housing having a large number of contacts). An object of the present invention is to provide a connector that can reliably obtain a contact contact force at the time of fitting, even if the connector has a long portion.

[0008]

In order to achieve such an object, the connector of the present invention comprises a housing having a mating contact holding member formed in a fitting space surrounded by a plate-shaped side wall so as to be receivable and fittable. It is composed of a plurality of connecting contacts held in this housing. This connecting contact is configured to have a contact portion, a holding portion, and a connecting portion, and the contact portion is formed to extend along the inner surface of the side wall in the fitting direction with the mating contact, and to fit in the fitting space. It is designed to come into contact with the mating contact of the mating contact holding member fitted to. Further, the holding portion is formed to extend along the outer surface of the side wall in the same direction as the contact portion, and the contact portion and the holding portion are integrally connected by the connecting portion.

According to the connector thus constructed,
When the mating contact holding member is fitted in the mating space, even if the mating contact exerts a force to spread the connecting contact and the side wall outward through the contact portion, the side wall will not contact the connecting contact. Since the contact part and the holding part are sandwiched, and the contact part and the sandwiched part are integrally formed by the connecting part, the connecting contact does not bend or the side wall swells, and the connecting contact and the connecting part do not swell. The contact force with the contacts does not decrease.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a receptacle connector 1 which is an example of a connector according to the present invention. The receptacle connector 1 is a connector that fits with the plug connector 2 like the receptacle connector 9 described above. The receptacle connector 1 is composed of a housing 10 having a fitting port 17 formed in an upper portion thereof and a plurality of contacts 19 held by the housing 10. The housing 10 is composed of a flat plate-shaped bottom portion 11 extending in the left-right direction, and front, rear, left and right side wall portions 12 to 14 surrounding the four sides of the bottom portion 11 (the left side wall portion is not shown in FIG. 1). The inner space surrounded by each side wall 12 and the like forms a fitting space 16 for receiving and fitting the plug connector (counter contact holding member) 2.

Inside the front and rear side wall portions 12, 13, a large number of contact portion receiving grooves 12a, 13a extending vertically (extending in the fitting direction) are formed side by side in the longitudinal direction. These contact receiving grooves 12a and 13a are provided on the bottom 11
It is connected to the through holes 11a and 11b formed in. Further, on the outer side of the side wall portions 12 and 13, the holding portion receiving groove 1 extending vertically facing the contact portion receiving grooves 12a and 13a.
2b and 13b are formed, and the holding portion receiving groove 12 is formed.
The lower ends of b and 13b are formed so as to open downward.

A plurality of receptacle contacts (connecting contacts) 19 are held in the housing 10 thus formed. Receptacle contact 19
Is the contact portion 1 located in the contact portion receiving grooves 12a and 13a.
9a and the contact portion 19a outside the contact portion 19a
The holding portion 19b extending parallel to and extending upward, and the contact portion 1
9a and a holding portion 19b, a connecting portion 19c integrally connecting the lower portion, and a lead portion 19d extending outward from the lower portion of the holding portion 19b and protruding to the outside of the housing 10 and connected to an upper surface of a printed circuit board or the like (not shown). And is formed in an F shape.

Therefore, in the receptacle contact 19 formed as described above, the contact portion 19a is inserted into the contact portion receiving grooves 12a and 13a from the lower surface side of the bottom portion 11 through the through holes 11a and 11b, and the holding portion receiving groove is formed. 1
The holding portion 19b is inserted into the 2b and 13b to be press-fitted and held in the housing 10. The holding unit 19
A plurality of protrusions 19e projecting on the bottom surface side (contact portion 19a side) of the holding portion receiving groove is formed in c, and prevents the side wall portions 12 and 13 from coming off when they are press-fitted and held.

In this way, the plug connector 2 is received and fitted into the fitting space 16 of the receptacle connector 1 in which the plurality of receptacle contacts 19 are held in the housing 10, through the fitting opening 17 opened upward. here,
When the plug connector 2 is received and fitted, the receptacle contact 19 and the plug contact 29 come into contact with each other, and the contact pressure between the contacts 19 and 29 causes the housing 10 and the contact 10 to contact each other.
Act on 20. At this time, since the contact holding portion 21 in which the plug contact 29 is held in the plug housing 20 is formed solid (integrated), even if the contact force of both the contacts 19 and 29 acts, the plug housing 20 will not move. It does not deform.

Also in the receptacle housing 10, the contact force of both contacts 19 and 29 acts on the front and rear side wall portions 12 and 13 from the inner side, and the force that pushes out both side wall portions 12 and 13 acts. . However, the side wall portions 12 and 13 are sandwiched between the contact portion 19a and the holding portion 19b, and the contact portion 19a and the holding portion 19b are integrally connected by the connecting portion 19c. This contact 1
It is possible to receive by 9 and it is possible to suppress the outward bulging of both side wall portions 12 and 13.

As a result, in order to reduce the external dimensions, the side wall portion 12 and the like are formed thin, and the contact 19 is formed.
Even in the receptacle connector 1 in which the lateral dimensions of the front and rear side wall portions 12 and 13 are formed to be long due to the increased number of contacts, the contact force between the contacts 19 and 29 is not reduced.

In addition, in the receptacle connector 3 described above, the receptacle contact 3 formed in an L shape.
When 9 is press-fitted and held in the housing 30, the housing 30 may warp (bend) in the vertical direction. However, by using the F-shaped receptacle contact 19, when the press-fitted and held in the housing 10, It is also possible to suppress warpage and the like.

In the above embodiment, the case where the connector is the receptacle connector having the fitting port on the upper side has been described. However, the connector according to the present invention is not limited to such a shape, and the fitting is not limited thereto. Of course, it may be a so-called right-angle type connector having a joint on the side.

Next, a different embodiment of the present invention will be described with reference to FIG. FIG. 2 shows an IC receiving socket (connector) 3 which is surface-mounted on a substrate (not shown), and an IC unit (counterpart contact holding member) 4 which is received by the socket 3. The socket 3 has a housing 30 in which a fitting port 37 is formed in the upper portion.
And a plurality of contacts 39 held by the housing 30.

The housing 30 includes a bottom portion 31 and the bottom portion 3.
1 is composed of front, rear, left and right side wall portions 32 to 35 that surround the four sides, and the inner space surrounded by each side wall portion 32 and the like is an IC
A fitting space 36 for receiving and fitting the unit 4 is formed. In the housing 30 formed in this manner, a plurality of contacts 39 penetrating from below into the through holes 31a formed in the bottom portion 31 are press-fitted and held as in the housing 10. Since the IC unit 4 has the contacts 49 extending in the vertical direction on the front, rear, left and right side surfaces, the contacts 39 are press-fitted and held in the side wall portions 32 to 35 of the socket 3.

Like the receptacle contact 19, the contact 39 has a contact portion 39a, a holding portion 39b, a connecting portion 39c, and a lead portion 39d, and is formed in an F shape. Then, by inserting the contact portion 39a into the through hole 31a, the side wall portions 32 to 35 are brought into contact with the contact portion 39a.
a so as to be sandwiched between a and the holding portion 39b.
9 is press-fitted and held.

In this way, the IC unit 4 is inserted from the fitting port 37 into the socket 3 in which the contact 39 is arranged so that the contact portion 39a is located on the outer periphery of the fitting space 36. At this time, similarly to the receptacle connector 1, a force to push the side walls 32 to 35 outward is applied, but a plurality of contacts 39 are press-fitted and held in the side walls 32 to 35. Therefore, each side wall 3
2 to 35 do not swell and contact failure between the contacts 39 and 49 does not occur.

The above connector 1 and socket 3
The housings 10 and 30 constituting the
However, the bottom portions 11 and 31 are not necessarily required, and the bottom portions 11 and 31 may have the side wall portion 12 and the like. Further, although the case where the fitting opening 17 is formed in a rectangular shape in the connector 1 and the fitting opening 37 is formed in a substantially square shape in the socket 3 has been described, the shape of the fitting opening 17 and the like (side wall portions 12, 13, ... Shape) is not necessarily limited to these shapes,
Of course, it may be formed in a circle, an ellipse, or a polygon other than a quadrangle.

Further, the contacts 19 and 39 described above are
The case where the retaining projections 19e and the like are formed inside the holding portions 19b and 39b has been described. However, the retaining projections are not always necessary, and as shown in FIG. It is also possible to form the contact 59 by forming the portion 59b straight, and to sandwich the contact 59 between the side wall portion 13 and the like.

Further, in the contact, the connecting portion integrally connecting the contact portion and the holding portion does not necessarily have to be formed on the lower side (the side opposite to the fitting port), and as shown in FIG. 4, the contact portion 79a and the holding portion are held. The parts 79b may be connected to each other on the upper side (fitting port side) by the connecting part 79c, and the lead part 79d may be formed to extend from below the holding part 79b. The contact 79 formed in this manner can be brought into contact with the lead portion 79d on the substrate K by inserting the contact 79 from above the side wall portion 83 extending upward from the bottom portion 81.

[0026]

As described above, in the connector of the present invention, the connecting contact having the contact portion, the holding portion and the connecting portion is press-fitted and held so as to sandwich the side wall forming the fitting space. There is. Therefore, when the mating contact holding member such as the plug connector is fitted in the mating space, a force is exerted by the mating contact to push the connecting contact and the side wall outward through the contact portion. Even
Since the side wall is sandwiched between the contact portion and the holding portion of the connecting contact, and the contact portion and the sandwiching portion are integrally formed by the connecting portion, the connecting contact does not bend or the side wall does not swell. , The contact force between the mating contact and the connecting contact does not decrease.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a connector and a mating contact according to the present invention.

FIG. 2 is a connector (socket) having another structure according to the present invention.
It is a perspective view which shows and a partner contact (IC unit).

FIG. 3 is a side view showing a different example of a contact used in the connector according to the present invention.

FIG. 4 is a side view showing another example of a contact used in the connector according to the present invention.

FIG. 5 is a perspective view showing an example of a conventional connector and a mating contact.

[Explanation of symbols]

 1,9 Receptacle connector 2 Plug connector (counterpart contact holding member) 3 Socket (connector) 4 IC unit (counterpart contact holding member) 19,39 Contact (connecting contact) 19a, 39a Contact part 19b, 39b Holding part 19c, 39c Connection

Claims (1)

[Claims] 1. A housing comprising a mating contact holding member formed in a mating space surrounded by a plate-like side wall so that the mating contact holding member can be fitted, and a plurality of connecting contacts held by the housing. A contact portion formed along the inner surface of the side wall and extending in the fitting direction of the counterpart contact, and contacting the counterpart contact of the counterpart contact holding member fitted in the fitting space; A connector comprising: a holding portion formed along the outer surface of the contact portion so as to extend in the same direction as the contact portion; and a connecting portion integrally connecting the contact portion and the holding portion.