JP2003017171A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector which can maintain a high contact force of a contact without increasing protrusion volume of a contact part of a contact from an opening of a contact-containing part. SOLUTION: A first contact part 7 fitted at a free end of a spring part 5 and a second contact part 8 fitted at a free end of another spring part 6 both extending toward the same direction from both ends of an intermediate part 4, a third contact part 11 capable of contacting an object for contact 13, and a fourth contact part 12 capable of contacting another object for contact 14 are provided, of which, the first and the second contact parts 7, 8 come in contact with each other when the objects for contact 13, 14 are made to approach each other. The third contact part 11 is located between the first contact part 7 and the intermediate part 4, and the fourth contact part 12 is located between the second contact part 8 and the intermediate part 4, the distance between the first contact part 7 and the second contact part 8 smaller than that between the third contact part 11 and the fourth contact part 12. The third contact part 11 protrudes outside from an opening 1a of contact container 1, and the fourth contact part 12 protrudes outside from an opening 1b opposite to the opening 1a of the contact container 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector which is arranged between two facing connection objects and electrically connects the two connection objects.

[0002]

2. Description of the Related Art A conventional connector of this type is shown in FIG.

FIG. 7A is a sectional view showing a state before two connecting objects are electrically connected by a connector, and FIG. 7B is a sectional view showing a state after being connected.

This connector comprises an insulator 202 provided with a plurality of contact accommodating portions 201 and a contact 203 accommodated in each contact accommodating portion 201. The contact 203 is bent in a substantially U shape.

The contact 203 includes an intermediate portion 204, two spring portions 205 and 206 extending from both ends of the intermediate portion 204 in the same direction and facing each other, and a first end provided on the free end side of the spring portion 205. Contact portion 207 and spring portion 206
And a second contact portion 208 provided on the free end side of the. The intermediate portion 204 of the contact 203 is fixed to the insulator 202.

The first contact portion 207 is the contact accommodating portion 2
01 from the opening 201a to the second contact portion 2
Reference numeral 08 projects outward from the opening 201b of the contact housing portion 201. The first contact portion 207 is located above the upper surface of the insulator 202, and the second contact portion 208 is located below the lower surface of the insulator 202.

Two opposing connection objects 213 and 214
A connector is arranged between them (see FIG. 7A), and the connector is sandwiched between the connection objects 213 and 214 from above and below (see FIG. 7B). As the connection target, for example, LGA (L
and Grid Array).

When the connector is sandwiched between the two connection objects 213 and 214 from above and below, the spring portions 205 and 206 bend and the first and second contact portions 207 and 208 approach each other. When the spring portions 205 and 206 bend, the first and second spring portions
Since the contact portions 207, 208 of the above slide on the lands 213a, 214a of the connection objects 213, 214, the land surface is cleaned, that is, the attached matter is removed (wiping by contact).

[0009]

The above-mentioned contact 20 is to be solved.
In order to increase the contact force of 3, the first and second contact portions 20
It is conceivable to increase the dimension between 7 and 208 to increase the amount of protrusion of the first and second contact portions 207 and 208 from the openings 201a and 201b.

However, according to this method, the spring portion 205,
Since the deformation amount of 206 becomes large, the spring portions 205, 20
6 is easily plastically deformed, and it is difficult to maintain the initial contact force for a long period of time.

The present invention has been made in view of the above circumstances, and its object is to increase the contact force of the contact without increasing the amount of protrusion of the contact portion of the contact from the opening of the contact receiving portion of the insulator. It is to provide a connector that can be maintained.

[0012]

In order to solve the above-mentioned problems, a connector according to a first aspect of the present invention comprises an insulator and a contact held in a floating state in a contact receiving portion of the insulator, and two connections are provided. In a connector that is arranged between objects and electrically connects the two connection objects, the contact includes a contact intermediate portion and two spring portions that extend from both ends of the intermediate portion in the same direction and face each other. A first contact portion provided on the free end side of one of the two spring portions, and a first contact portion provided on the free end side of the other spring portion of the two spring portions, A second contact portion that comes into contact with the first contact portion when two objects to be connected are brought closer to each other by a predetermined distance or less; and the first contact portion and the contact intermediate portion of the one spring portion. while A third contact part that is provided and is capable of contacting one of the two connection objects, and is provided between the second contact part and the contact intermediate part of the other spring part, and the two connections are provided. Fourth that can contact the other side of the object
And a distance between the first contact portion and the second contact portion is smaller than a distance between the third contact portion and the fourth contact portion. At least one of the contact portions of No. 4 projects outward from one opening of the contact accommodating portion.

When the connector is sandwiched from above and below by the two connection objects, the first and second contact portions contact each other, so that the contact force of the third and fourth contact portions with respect to the connection object is increased.

Further, the third contact portion is the first spring portion of the one spring portion.
Is provided between the contact portion and the contact intermediate portion, and the fourth contact portion is provided between the second contact portion and the contact intermediate portion of the other spring portion. When the connector is pinched from above and below, the path length of the current is greatly reduced.

According to a second aspect of the present invention, in the connector according to the first aspect of the present invention, the contact accommodating portion of the insulator is moved in the contact middle portion in the thickness direction of the insulator and in the lateral direction of the contact. And a second restricting part that restricts movement of the first and second contact parts in the thickness direction of the insulator and the longitudinal direction of the contact. Is characterized by.

Since the movement of the intermediate contact portion and the first and second contact portions in the thickness direction of the insulator is regulated by the first and second regulating portions, a force is exerted on the third and fourth contact portions. When actuated, the contact is prevented from falling or coming off.

According to a third aspect of the invention, in the connector according to the first or second aspect of the invention, a third regulating portion for regulating the movement of the two spring portions in the longitudinal direction of the contact is provided. Is characterized by.

Since the movement of the two spring parts in the longitudinal direction of the contact is restricted by the third restricting part, when the connector is pinched by the two connecting objects from above and below and the spring part is bent, And the fourth contact portion slides on the surface of the contact portion of the connection target.

A connector according to a fourth aspect of the present invention comprises an insulator and a contact held in a contact accommodating portion of the insulator, and the connector is arranged between two connection objects, and the two connection objects are electrically connected. In the connector to be electrically connected, the contact includes a contact intermediate portion fixed to the insulator, two spring portions extending from both ends of the intermediate portion in the same direction and facing each other, and of the two spring portions. The first contact portion provided on the free end side of one spring portion and the free end side of the other spring portion of the two spring portions are provided so as to keep the two connection objects within a predetermined distance or less. A second contact portion that comes into contact with the first contact portion when brought close to each other, and the first contact portion of the one spring portion.
Third contact portion that is provided between the contact portion and the contact intermediate portion and is capable of contacting one of the two connection objects, and the second intermediate portion and the contact intermediate portion of the other spring portion. A fourth contact portion that is provided between the first contact portion and the second contact portion and that is provided between the first contact portion and the second contact portion. Is smaller than the distance between the contact portion and the fourth contact portion, the third contact portion of the one spring portion projects outward from one opening of the contact accommodating portion, and the other spring portion of the other spring portion. Fourth
Of the contact housing portion is projected outward from the other opening facing the one opening of the contact housing portion.

When the connector is sandwiched from above and below by the two connection objects, the first and second contact portions contact each other, so that the contact force of the third and fourth contact portions with respect to the connection object is increased.

The third contact portion is the first spring portion of the one spring portion.
Is provided between the contact portion and the contact intermediate portion, and the fourth contact portion is provided between the second contact portion and the contact intermediate portion of the other spring portion. When the connector is pinched from above and below, the path length of the current is greatly reduced.

Further, when a force is applied to the third and fourth contact portions, the contact is prevented from falling down or coming off.

Further, when the connector is sandwiched by the two objects to be connected from above and below and the spring portion bends, the third and fourth
Contact part slides on the surface of the contact part of the connection object.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing a part of a connector according to a first embodiment of the present invention, FIG. 2 is a plan view for explaining a housing state of contacts, and FIG. 2A and 2B are cross-sectional views showing a state before and after being electrically connected, FIG. 4A is a diagram showing a state before being connected, and FIG. 3B is a diagram showing a state after being connected. .

This connector is provided with an insulator 2 having a plurality of contact accommodating portions 1 and contacts 3 accommodated in each contact accommodating portion 1.

In the contact 3 of the first embodiment, a metal plate suitable for the contact is punched out into a substantially I-shape or a substantially rectangular shape, and the punched metal piece is bent into a substantially U-shape and two opposing straight line portions (2 Springs) are bent in opposite directions in a substantially V shape or a V shape.

The contact 3 is provided on an intermediate portion (contact intermediate portion) 4, two spring portions 5 and 6 extending from both ends of the intermediate portion 4 in the same direction and facing each other, and on the free end side of the spring portion 5. The arc-shaped first contact portion 7 and the arc-shaped second contact portion 8 provided on the free end side of the spring portion 6 are provided. The intermediate portion 4 is integrally provided with a shoulder portion 9 protruding in the lateral direction S of the contact.

As described above, the two spring portions 5 and 6 are bent in the V-shape or the V-shape in the opposite directions. An arc-shaped third contact portion 11 capable of contacting the connection target 13 is provided substantially at the middle of the spring portion 5, and a fourth arc-shaped contact portion 14 capable of contacting the connection target 14 is provided at the substantially middle portion of the spring portion 6. Contact part 12
Are provided respectively. Examples of the connection objects 13 and 14 include semiconductor devices such as LGA, printed circuit boards, and LSI. The distance between the first contact portion 7 and the second contact portion 8 is smaller than the distance between the third contact portion 11 and the fourth contact portion 12. The overall shape of the contact 3 is almost rhombic (see FIG. 3).

The third contact portion 11 projects outward from the opening 1a of the contact housing portion 1, and the fourth contact portion 12 projects outward from the opening 1b of the contact housing portion 1 (FIG. 3).
(See (a)). The third contact portion 11 is located above the upper surface H of the insulator 2, and the fourth contact portion 12 is located below the lower surface L of the insulator 2.

The contact lateral dimension WC2 of the intermediate portion 4 having the shoulder portion 9 is larger than the contact lateral dimension WC1 of the spring portions 5 and 6 of the contact 3 (see FIG. 2).

The insulator 2 is composed of an upper insulator portion 2a and a lower insulator portion 2b.
When the insulator portions 2a and 2b are overlapped with each other, the contact accommodating portion 1 as a chamber for accommodating the contact 3 is formed inside the insulator 2. In order to assemble the connector, the contact 3 is arranged at a predetermined position of the one insulator portion 2b, the other insulator portion 2a is overlaid on the insulator portion 2b, and both insulator portions 2a, 2b are joined.

The contact accommodating portion 1 is a hole that penetrates the insulator 2 in the insulator thickness direction IT, and one opening 1a and the other opening 1b of the contact accommodating portion 1 are opposed to each other. Two recesses 15 and 16 facing each other in the contact longitudinal direction L are formed in the contact accommodating portion 1 (see FIG. 3), and an intermediate portion 4 of the contact 3 is accommodated in the recess (first restricting portion) 15 and The (second restricting portion) 16 accommodates the first and second contact portions 7 and 8 of the contact 3. The recess 15 restricts the movement of the intermediate portion 4 in the insulator thickness direction IT and the contact lateral direction S. Recess 1
6 regulates the movement of the first and second contact portions 7 and 8 in the insulator thickness direction IT and the contact lateral direction S.

The concave portion 16 is a simple hole that extends straight in the contact longitudinal direction L, whereas the concave portion 15 extends straight in the contact longitudinal direction L, but is an L-shape that is bent at a right angle (contact lateral direction S) in the middle. It is a hole.
The shoulder portion 9 of the intermediate portion 4 is housed in the back portion 15a of the recess 15 (see FIG. 2). The shoulder portion 9 and the inner portion 15a of the recess 15 constitute a third regulating portion that regulates the movement of the spring portions 5 and 6 in the longitudinal direction.

The contact short-side dimension WI1 of the contact accommodating portion 1, the contact short-side dimension of the recess 16 and the contact short-side dimension of the entrance 15a of the recess 15 are equal to each other, and are all smaller than the contact short-side dimension WC1. Is very large.

The contact longitudinal dimension DC of the shoulder portion 9 is slightly smaller than the contact longitudinal dimension DI of the inner portion 15b of the concave portion 15, and the contact lateral dimension WC2 of the intermediate portion 4 having the shoulder portion 9 is the inner portion of the concave portion 15. It is slightly smaller than the contact short-side dimension WI2 of the portion 15b. The difference between the contact longitudinal dimension DC of the shoulder portion 9 and the contact longitudinal dimension DI of the inner portion 15b of the recess 15 is set to be smaller than the sliding distance Wl of the third and fourth contact portions 11 and 12. There is.

Before the connector is sandwiched by the two connection objects 13 and 14 from above and below, as shown in FIG. 3 (a), the third and fourth contact portions 11 and 12 are located above and below the openings 1a and 1b, respectively. And there is a gap between the first and second contact portions 7, 8.

As described above, the contact 3 is provided in the recess 15.
Since the intermediate portion 4 of the contact 3 is accommodated and the first and second contact portions 7 and 8 of the contact 3 are accommodated in the concave portion 16, the insulator thickness of the third or fourth contact portion 11 and 12 of the contact 3 is reduced. Even if a force is applied in the depth direction IT or in the lateral direction S of the contact, the movement of the spring portions 5 and 6 is restricted. Therefore, the contact 3 does not fall or come off.

When the connector is sandwiched by the two connection objects 13 and 14 from above and below, as shown in FIG. 3B, the third and fourth contact portions 11 and 12 enter the contact accommodating portion 1, respectively. When pushed in, the first and second contact portions 7, 8 come into contact with each other.

When the spring portions 5 and 6 bend, the third and fourth contact portions 11 and 12 slide on the land 13a (contact portion) of the connection object 13, so that the adhered matter on the land surface is removed. .

Since the first and second contact portions 7 and 8 are in contact with each other, the contact force of the third and fourth contact portions 11 and 12 with respect to the connection objects 13 and 14 is increased.

According to the first embodiment, the opening 1 of the third and fourth contact portions 11, 12 is increased by increasing the dimension between the third and fourth contact portions 11, 12 as described above.
Since the amount of protrusion from a and 1b is not increased to increase the contact force of the third and fourth contact portions 11 and 12, the contact force of the third and fourth contact portions 11 and 12 can be prolonged. Can be maintained over.

Further, since the third and fourth contact portions 11 and 12 are located substantially in the middle of the spring portions 5 and 6, the two connection objects 13 and 14 sandwich the connector from above and below,
When the first and second contact parts 7, 8 contact each other, the path length of the current is significantly shortened. In this embodiment, it is almost half.

Furthermore, since the recesses 15 and 16 restrict the movement of the intermediate portion 4 of the contact 3 and the first and second contact portions 7 and 8 in the insulator thickness direction and the contact lateral direction SIT, the third portion. When the force is applied to the fourth contact portions 11 and 12, the contact 3 is prevented from collapsing or coming off.

FIG. 4 is an exploded perspective view showing a part of a connector according to a second embodiment of the present invention, FIG. 5 is a plan view for explaining a housing state of contacts, and FIG. Are cross-sectional views showing a state before and after being electrically connected, FIG.
FIG. 6B is a diagram showing a state after the connection. First
The same parts as those in the embodiment are designated by the same reference numerals and the description thereof will be omitted.

The connector of the second embodiment and the connector of the first embodiment are slightly different in the shape of the contact.

In the contact 103 of the second embodiment, a metal plate suitable for the contact is punched out into a substantially U shape, and two parallel straight line portions (two spring portions) of the punched metal piece are bent in the same direction in a chevron shape. Finally, bend them so that they face each other.

The contact 103 includes an intermediate portion 104, two spring portions 105 and 106 extending from both ends of the intermediate portion 104 in the same direction and facing each other, and one spring portion 105.
Arc-shaped first contact portion 107 provided on the free end side of the
An arc-shaped second contact portion 108 provided on the free end side of the other spring portion 106, a third contact portion 111 capable of contacting the one connection object 13, and the other connection object 14 And a fourth contact portion 112 capable of contacting the. The arc-shaped third contact portion 111 is provided between the first contact portion 107 and the intermediate portion 104 of the one spring portion 105, and has the arc-shaped fourth contact portion 111.
The contact part 112 of the second contact part 1 of the other spring part 106
It is provided between 08 and the intermediate part 104.

Contact short-side dimension W of the intermediate portion 104
Since C2 is larger than the contact lateral direction dimension WC1 of the spring portions 105 and 106, part of the intermediate portion 104 also functions as the shoulder portion 9 of the first embodiment.

According to the second embodiment, the same effect as that of the first embodiment can be obtained.

In the above embodiment, the spring portions 5, 6,
Although 105 and 106 are substantially L-shaped or substantially V-shaped, the shape of the spring portions 5, 6, 105 and 106 is not limited to this, and other shapes may be used as long as the same function is exerted. Good.

Also, the first and second contact portions 7, 8, 10
7, 108 are located at the free ends of the spring parts 5, 6, 105, 106, but the first and second contact parts 7, 8, 107, 10
The position of 8 is not limited to this, but the first and second contact portions 7, 8, 107 and 108 are the third and fourth contact portions 1.
It may be located on the free end side with respect to 1, 12, 111, and 112.

The developed shape of the contact 3 of the first embodiment is a strip shape, and the contact 103 of the second embodiment is the same.
Since the developed shape of is substantially U-shaped, the contact 3 of the first embodiment can reduce the material cost.

Further, in the above embodiment, the contacts 3,
Although 103 is held in a floating state in the contact accommodating portion 1 of the insulator 2, the contacts 3, 1
The intermediate portion 4, 104 of 03 may be fixed.

[0055]

As described above, according to the connector of the invention described in claim 1, the contact force of the third and fourth contact portions can be maintained for a long period of time. Moreover, the path length of the electric current is significantly shortened.

According to the connector of the invention described in claim 2,
When a force acts on the third and fourth contact portions, the contact is prevented from falling or coming off.

According to the connector of the invention described in claim 3,
When the connector is sandwiched by the two objects to be connected and the spring portion is bent, the third and fourth contact portions slide on the surface of the contact portion of the object to be connected, so that the deposits on the surface are removed.

According to the connector of the invention described in claim 4,
The contact force of the third and fourth contact portions can be maintained for a long period of time. Moreover, the path length of the electric current is significantly shortened.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a part of a connector according to a first embodiment of the present invention.

FIG. 2 is a plan view for explaining a housing state of contacts.

FIG. 3 is a cross-sectional view showing a state before and after two connecting objects are electrically connected by a connector.

FIG. 4 is an exploded perspective view showing a part of the connector according to the second embodiment of the present invention.

FIG. 5 is a plan view for explaining a housing state of the contacts.

FIG. 6 is a sectional view showing a state before and after two connecting objects are electrically connected by a connector.

FIG. 7 is a cross-sectional view showing a state before and after two connecting objects are electrically connected by a conventional connector.

[Explanation of symbols]

1 Contact storage 1a, 1b Contact housing opening 2 insulators 3,103 contacts 4,104 middle part 5,6,105,106 Spring part 7,107 First contact part 8,108 Second contact part 9 shoulder 11,111 Third contact part 12,112 Fourth contact part 13,14 Connection target 15, 16 recess

Claims (4)

[Claims] 1. A connector provided with an insulator and a contact held in a floating state in a contact accommodating portion of the insulator, disposed between two connection objects, and electrically connecting the two connection objects. In the above, the contact is provided on a contact intermediate portion, two spring portions extending from both ends of the intermediate portion in the same direction and facing each other, and on the free end side of one of the two spring portions. The first contact portion and the other spring portion of the two spring portions are provided on the free end side, and the first contact portion is provided when the two connection objects are brought closer to each other by a predetermined distance or less. A third contact that is provided between the second contact portion that contacts the first contact portion and the first contact portion of the one spring portion and the contact intermediate portion, and is capable of contacting one of the two connection objects. And the above A second contact portion of one spring portion, and a fourth contact portion that is provided between the second contact portion and the contact intermediate portion and is capable of contacting the other of the two connection objects, the first contact The distance between the second contact portion and the third contact portion is smaller than the distance between the third contact portion and the fourth contact portion, and at least one of the third and fourth contact portions is the contact accommodating portion. A connector characterized in that it projects outward from one opening. 2. A contact accommodating portion of the insulator, a first regulating portion for regulating movement of the contact intermediate portion in a thickness direction of the insulator and a lateral direction of the contact, and a thickness direction of the insulator. The connector according to claim 1, further comprising: a second restricting portion that restricts movement of the first and second contact portions in a longitudinal direction of the contact. 3. The connector according to claim 1, further comprising a third restricting portion that restricts movement of the two spring portions in the longitudinal direction of the contact. 4. A connector provided with an insulator and a contact held in a contact accommodating portion of the insulator, the connector being disposed between two connection objects and electrically connecting the two connection objects, The contact includes a contact intermediate portion fixed to the insulator, two spring portions extending from both ends of the intermediate portion in the same direction and facing each other, and a free end side of one of the two spring portions. Is provided on the free end side of the first contact portion provided on the first contact portion and the other spring portion of the two spring portions, and the first contact portion when the two connection objects are brought closer to each other by a predetermined distance or less. A second contact portion that comes into contact with the contact portion, and a first contact portion of the one spring portion and the contact intermediate portion, the first contact portion being capable of contacting one of the two connection objects. Contact 3 And a fourth contact portion provided between the second contact portion and the contact intermediate portion of the other spring portion and capable of contacting the other of the two connection objects, The distance between the first contact portion and the second contact portion is smaller than the distance between the third contact portion and the fourth contact portion, and the third contact portion of the one spring portion is the contact. A connector which protrudes outward from one opening of the accommodation portion, and the fourth contact portion of the other spring portion protrudes outward from the other opening facing one opening of the contact accommodation portion. .