JP2001148271A - Contact for press-fit connector and press-fit connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a press-fit connector and a contact for the same which enables to narrow the distance between contacts, avoids unreasonable force put at the contact part, and has wide degrees of freedom in direction in arrangement of contacts with the press-fit connector. SOLUTION: The contact 116 has a twisted part 110 connecting a bulging part 106 and a contact part 108. The both end parts of a top side end face 106b of the bulging part 106 clipping the twisted part 110 make up press fitting faces 106b-1, 106b-1. As the main face 108a of the contact part 108 and the main face 106b of the bulging part 106 do not come on top of each other, the area of press fitting faces 106b-1, 106b-1 can be secured larger.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-fit connector contact and a press-fit connector used for electronic devices such as various computers and workstations.

[0002]

2. Description of the Related Art Connectors are used for back panels of various computers, workstations and exchanges. In recent years, many contacts used in this connector have a press-fit portion formed from the viewpoint of solder-free operation and work efficiency.

A contact (a terminal, hereinafter referred to as a contact for a press-fit connector or simply a contact for convenience) having such a press-fit portion formed thereon.
For example, in the case of the contact 1 for a plug shown in FIG. 1, it is composed of a lead portion 2, a press-fit portion 3, a bulge portion (terminal fixing portion) 4 and a contact portion 5, and the lead portion 2 and the press-fit portion 3 Is press-fitted into the hole 8 of the substrate (electronic component) 6 and is electrically connected to the substrate 6.

[0004] The press-fit portion 3 is branched into two parts in the pitch direction (X1-X2 direction in Fig. 1; see Fig. 3), which is the longitudinal direction of the connector when attached to a connector (not shown), and is enlarged. Thereafter, it is formed to extend upward (Y1 direction in FIG. 1) from the lead portion 2 so as to be integrated again. The bulge portion 4 has a thin, substantially rectangular parallelepiped shape, and is formed by arranging a wide main surface 4 a in the pitch direction and extending from the press-fit portion 3. The contact portion 5 has a pin shape, and is formed by pressing the press-fit portion 3 from the center of the upper end surface 4b of the bulge portion 4.
Are formed so as to extend on the same center line as. Here, both ends of the upper end surface 4b of the bulge portion 4 sandwiching the contact portion 5 (the contact portion 5
Are not extended) are press-fit surfaces 4b-1, 4b-
It is set to 1. The press-fit surface 4b-1 will be further described later.

On the other hand, in the case of the jack contact 7 shown in FIG. 2, the basic configuration is the same as that of the plug contact 1, but when the pin serving as the contact portion 5 is the plug contact 1, one contact is provided. However, the difference is that two contacts are provided in the case of the jack contact 7. For example, the contact portion 5 of the contact 1 is connected between the two pins 5a, 5a of the contact portion 5 of the contact 7.

When these contacts 1 and 7 are connected to the substrate 6, a plurality of contacts 1 and 7 are pressed into the connector,
After being fixed, by pressing the connector,
Connected to substrate 6. For example, contact 7 for jack
The case (1) will be further described with reference to a partial view of the connector shown in FIG.

Referring to FIG. 3, the connector has a contact mounting portion 9 formed by using an insulating resin or the like as a material in a housing (not shown). A plurality of through-holes 10 are formed in the contact mounting portion 9 at a predetermined pitch in a pitch direction (X1-X2 direction in FIG. 3), and a direction orthogonal to the pitch direction (FIG. 3).
In the middle and Z1-Z2 directions), a plurality of strips are formed in a staggered manner by performing pitch conversion at different formation positions.

The through-hole portion 10 is composed of three portions 10a to 10c which gradually decrease upward in a stepped manner. The contact 7 is directed upward (Y1 side) from below (Y2 side) in FIG. 3 with the contact portion 5 side of the contact 7 facing the through hole 10 of the contact mounting portion 9 using a jig (not shown).
Pressed toward. And the press-fitting surface 4b-1 is the part 1
The contact 7 is fixed to the contact mounting portion 9 by being pushed down to a position where the contact 7 comes into contact with the bottom portion 10a-1.

FIG. 4 shows the contact mounting portion 9 to which the contact 7 is fixed at three positions (a)-(a), (b)-(b) and (c)-in the vertical direction (Y1-Y2 direction).
(C) is a sectional view taken along each line. In order to attach the connector configured as described above to the substrate 6, a portion of the contact attachment portion 9 near the contact portion 5 is pressed downward (Y2 direction) in FIG. Contact 7 via bottom 10a-1 of 10a
The press-fitting surface 4b-1 is pressed down to press-fit the contact 7 into the hole 8 of the substrate 6. When connecting a connector provided with the contact 1 to this connector, the portion 1 of the through hole 10
This is performed by press-fitting the contact 1 into 0c.

At this time, the contact 7 is inserted into the hole 8 of the substrate 6.
Press-fit surface 4b of contact 7 which receives a pressing force of a jig via contact mounting portion 9 in order to press-fit certainly.
1 has a predetermined area. This press-fit surface 4b-1
Is too small, the contact 7 in the extreme case is pushed upward from the through hole 10 of the contact mounting portion 9 and cannot be press-fitted into the substrate 6, or
Since the press-fitting surface 4b-1 having a small area may locally receive an excessive force and damage the contact mounting portion 9 from the through-hole portion 10, and furthermore, the contact portion 5 of the contact 7 may be deformed. It is.

[0011]

However, in the press-fit connector equipped with the conventional connector, the press-fitting surfaces 4b-1 of the contacts 1 and 7 require a predetermined area as described above. The pitch w occupies a predetermined dimension w in the pitch direction, so that the pitch p at which the bulge portions 4 are arranged with the contacts must be large.
Further, since the contact portion 5 extends directly from the bulge portion 4 as described above, an excessive force is applied to the contact portion 5 when pressing the press-fit surface 4b-1 of the bulge portion 4, and the contact portion 5, The problem of deforming the contact mounting portion 9 or damaging the contact mounting portion 9 cannot be completely eliminated.

The present invention has been made in view of the above-described problems, and it is possible to increase the arrangement interval when arranging contacts on a connector, and to prevent an excessive force from being applied to a contact portion. Still another object of the present invention is to provide a press-fit connector contact and a press-fit connector having a high degree of freedom in the arrangement direction when arranging the contact on the press-fit connector.

[0013]

A contact for a press-fit connector according to the present invention comprises a lead portion, a press-fit portion extending from the lead portion, and a thin rectangular parallelepiped having a main surface wider than the press-fit portion. A bulge portion extending from the press-fit portion; and a contact portion having a main surface narrower than the bulge portion and extending from a center of an end surface of the bulge portion. The press-fitting surfaces at both ends where the contact portions are not extended are press-fitted and fixed to the press-fit connector such that the press-fitting surfaces abut the stepped bottom of the contact insertion hole formed in the press-fit connector. In a press-fit connector contact, a twist that can be arranged between the bulge portion and the contact portion so that the directions of the main surfaces of the bulge portion and the contact portion are different from each other. (Twisted portion), characterized in that is provided (the invention according to claim 1).

Here, the main surface refers to two opposing side surfaces having a relatively large area among the four side surfaces excluding the upper and lower surfaces. The contact portion extending from the center of the end face of the bulge portion may be either a single pin or two pins. The former is for a plug and the latter is for a jack.
As a result, the bulge portion and the contact portion are formed on different planes, and almost the entire end surface of the bulge portion except the extending twist portion can be used as a press-fitting surface. In particular, particularly in the case of a jack connector, the width of the bulge portion on the main surface side can be relatively reduced, and when arranging the contacts on the connector, the arrangement interval in the width direction of the bulge portion on the main surface side is reduced. Can be dense. In addition, in the case of either the jack connector or the plug connector, since the bulge and the contact are separated via the twist part, an excessive force acts directly on the contact and the contact is deformed. I will not let you. Also, the press-in force is the same as the conventional one, and the width of the bulge part on the main surface side is the same as the conventional one,
When the area of the press-fitting surface is made larger than before, the force (stress) per unit area becomes relatively small. In particular, in the case of a jack connector, an excessive force acts on the press-fitting surface and the bulge portion is formed. Without deforming,
The resin contact mounting portion (connector body) of the connector abutting on the press-fitting surface is not damaged. Also, particularly in the case of a jack connector, the degree of freedom in the arrangement direction when arranging the contacts in the press-fit connector is high.

Further, in the press-fit connector according to the present invention, when the contact for the press-fit connector according to the present invention is provided (the invention according to claim 2), the effects of the present invention can be suitably exhibited. it can. Further, in this case, when the press-fit connector contacts are arranged in a staggered manner at a predetermined pitch (the invention according to claim 3), compared with a case where a plurality of the contacts are arranged at the same pitch, the contact portion and the main surface are not formed. Since the press-fit portion and the bulge portion having different directions can be arranged without interfering with each other between the adjacent contacts, the arrangement interval can be further reduced particularly in the case of a jack connector.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of a contact for a press-fit connector and a press-fit connector according to the present invention (hereinafter, referred to as this embodiment) will be described below with reference to the drawings. . FIG. 5 shows a contact for a press-fit connector according to a first example of the present embodiment (hereinafter, simply referred to as a contact for a press-fit connector, or simply a contact for convenience).

The contact 100 shown in FIG. 5 is for a plug, and has a lead portion 102, a press-fit portion 104, a bulge portion (terminal fixing portion) 106, and a contact portion 108. Further, the bulge portion 106, the contact portion 108 Are connected to each other. The press-fit portion 104 is provided in a pitch direction (FIG. 5) which is a longitudinal direction of the connector when attached to a connector (not shown).
Middle, X1-X2 direction. See FIG. ), And is formed to extend upward (Y1 direction in FIG. 5) from the lead portion 102 so as to be branched and expanded into two pieces and integrated again. The bulge portion 106 has a thin and substantially rectangular parallelepiped shape, and extends the wide main surface 106a in a direction orthogonal to the pitch direction (Z1 in FIG. 5).
(−Z2 direction) and extend from the press-fit portion 104.

The twist portion 11 extends to the bulge portion 106 and
0 is formed. Lower end 110a of twist portion 110
Is formed on the same center line as the press-fit portion 3 from the center of the upper end surface 106b of the bulge portion 106. In this case, the upper end is provided in a state of being twisted by 90 degrees with respect to the lower end. Both ends of the upper end surface 106b of the bulge portion 106 sandwiching the twist portion 110 (portions where the twist portion 110 does not extend) are press-fit surfaces 106b-1 and 106b-1. A pin-shaped contact portion 108 is provided extending to the upper end of the twist portion 110. Therefore, the contact portion 108
Is arranged such that the main surface 108a is orthogonal to the main surface 106a of the bulge portion 106, and thus the main surface 108a of the contact portion 108
a and the main surface 106a of the bulge portion 106 do not overlap with each other.
A large area of -1 can be secured. This point will be further described later.

The contact 100 constructed as described above
The lead 102 and the press-fit portion 104 are press-fitted into the holes 114 of the substrate (electronic component) 112 so that the substrate 1
12 is electrically connected. FIG. 6 shows a contact for a press-fit connector according to a second example of the present embodiment.

The contact 116 in FIG. 6 is for a jack, and its basic configuration is the same as that of the plug contact 100. However, when the number of pins used as the contact portions 108 is the plug contact 100, there is one contact. In the case of the jack contact 116, two contacts (reference numeral 118-
1, 118-2). Therefore, since the main surface 108a formed by a plane including the two pins 118-1 and 118-2 is wider than that of the contact 100, the main surface 108a of the contact portion 108 and the main surface of the bulge portion 106 are formed. The effect of enlarging the area of the press-fit surfaces 106b-1 and 106b-1 due to the fact that they do not overlap with the contact 106a is even greater than in the case of the contact 100.

The above contacts 100 and 116
Is formed by cutting or punching a flat metal material into a substantially contact shape, and then gripping and twisting the contact portion 108 and the bulge portion 106. As already described in the conventional example, these contacts 1
When the contacts 100 and 116 are connected to the board 112, the plurality of contacts 100 and 116 are pressed into the connector and fixed, and then the connector is pressed.
Connect to

For example, in the case of a jack contact 116, a partial view of the connector shown in FIG.
(B) A description will be given with reference to a side view of the connector. In FIG. 7, the connector has a contact mounting portion 118 formed by using an insulating resin or the like as a material in a housing (not shown). Contact mounting part 1
18 has a large number of through holes (contact insertion holes) 12
A plurality of 0s are formed at a predetermined pitch Px in the pitch direction (X1-X2 direction in FIG. 7), and the formation positions are also changed in a direction orthogonal to the pitch direction (Z1-Z2 direction in FIG. 7). A plurality of strips are formed in a zigzag pattern by performing pitch conversion.

The through-hole portion 120 has a configuration in which three portions 120a to 120c having different shapes communicate with each other. The portion 120a formed in the lower part is a rectangular parallelepiped elongated in the Z1-Z2 direction, and the bulge portion 106 extends the main surface 106a in the Z direction.
This is for insertion in the 1-Z2 direction. A part 120b communicating with the part 120a and extending almost to the upper part
Is a rectangular parallelepiped elongated in the X1-X2 direction,
08 is for inserting the main surface 108a in the X1-X2 direction. The part 12 communicating with the part 120b
0c is for inserting the contact portion 108 of the plug contact 100. In this case, since the main surface 108a of the contact portion 108 is disposed orthogonal to the main surface 106a of the bulge portion 106, the upper end surface 1 of the bulge portion 106
06b is almost entirely press-fitted surface 106b except for a connection point with a narrow surface orthogonal to main surface 108a of contact portion 108.
-1 and is in contact with the bottom of the portion 120a (the step-shaped bottom of the contact insertion hole) 120a-1.

The contact 116 is directed upward from the lower part (Y2 side) in FIG. 7 (Y1 side) of the contact 116 toward the through hole 120 of the contact mounting part 118 by using a jig (not shown). Press-fit. Then, the press-fitting surface 106b-1 is connected to the bottom 120 of the portion 120a.
a-1 is pushed down to the position where it contacts a-1.
16 is fixed to the contact mounting portion 118.

FIG. 8 shows the contact mounting portion 118 to which the contact 116 is fixed in the vertical direction (Y1-Y2).
Direction) at three places (a)-(a), (b)-(b),
(C) It shows the sectional view cut on each line of (c). FIG. 9 shows that the contact mounting portion 118 is moved upward (Y1
Side). Contact 11 as described above
6 is a contact portion 118 on which two pins 118-1 are arranged.
Is arranged at a position orthogonal to the main surface 118a of the bulge portion 106. So, in this case,
The main surface 118a of the contact portion 118 is moved in the pitch direction (X1-X2
Direction of the bulge portion 106 in the direction (Z1-Z2 direction) orthogonal to the pitch direction.
06a are directed, but the contacts 116 are arranged in a staggered manner, and the contacts 11 of the adjacent rows L1 and L2 are arranged.
Since the main surfaces 106a of the first and sixth planes do not interfere with each other, the pitch Px in the pitch direction and, in this case, particularly, the pitch Pz in the direction perpendicular to the pitch direction are densely arranged. On the contrary, when the main surface 118a of the contact portion 118 is oriented in a direction orthogonal to the pitch direction,
They are densely arranged in the pitch direction.

In order to attach the connector 116 configured as described above to the substrate 112, a portion of the contact attaching portion 118 near the contact portion 108 is directed downward (Y2 direction) in FIG. Press the part 1
Press-fit surface 106b-1 through bottom 120a-1 of 20a
Is pressed, and the contact 11 is inserted into the hole 114 of the substrate 112.
6 by press-fitting.

At this time, the press-fitting surface 106b-1 of the contact 116, which receives the pressing force of the jig via the contact mounting portion 118, can secure a larger area than before. Therefore, when making the press-in force the same as before,
The width W of the bulge portion 106 on the main surface 106a side can be made smaller than the conventional width w, and when arranging the contacts on the connector, the arrangement interval in the pitch direction which is the direction of the bulge portion 106 on the main surface 106a. (Pitch) Px can be made dense. Further, since the bulge portion 106 and the contact portion 108 are separated via the twist portion 110, an excessive force is not directly applied to the contact portion 108.

Further, when the press-fitting force is made the same as the conventional one, and the width W of the bulge portion 106 on the main surface 106a side is made the same as the conventional width w to increase the area of the press-fitting surface 106b-1 as compared with the conventional one. Since the force (stress) per unit area is relatively small, no excessive force acts on the press-fitting surface 106b-1 to deform the bulge portion 106 and abuts on the press-fitting surface 106b-1. The resin-made contact mounting portion 118 of the connector is not damaged.

Further, since the twist angle of the twist portion 110 can be set freely, the degree of freedom in the arrangement direction when the contacts 116 are arranged in the press-fit connector is high.
Although the twist angle is 90 degrees in FIGS. 8C and 9, if the twist angle is set to, for example, 45 degrees, the pitches Px and Pz can be further reduced. FIG. 10 shows a press-fit connector according to a third example of the present embodiment.
Shown in

In the connector 122, a large number of contacts 100 (116) according to the present invention are provided in a through hole 120 of a contact mounting portion 118 provided inside a housing 124 formed of a material such as an insulating resin. You.
Therefore, according to the press-fit connector 122 according to the third example of the present embodiment, the first, second, and
The effect of the present invention described in the example can be obtained.

[0031]

According to the first aspect of the present invention, the twist portion can be arranged between the bulge portion and the contact portion so that the directions of the main surfaces of the bulge portion and the contact portion are different. Is provided, the arrangement interval can be made close when arranging the contacts on the connector, and the contact portion and the press-fitting surface are not deformed due to excessive force acting on the contact portion. Will not be damaged. Also, the degree of freedom in the arrangement direction when arranging the contacts on the press-fit connector is high.

Further, according to the press-fit connector according to the second aspect, since the contact for the press-fit connector of the present invention is provided, the effects of the present invention can be suitably exhibited. According to the press-fit connector according to the third aspect, since the press-fit connector contacts are arranged in a staggered manner, the contact portion and the press-fit portion having different main surface directions and the bulge portion are adjacent to each other. Since the arrangement can be performed without interfering with each other, the arrangement interval can be further reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a conventional press-fit connector contact for a plug.

FIG. 2 is a perspective view of a conventional press-fit connector contact for a jack.

FIG. 3 is a partial view of a contact mounting portion of a conventional press-fit connector.

FIG. 4 is a partial cross-sectional view of a portion where a less-fit connector contact is attached in FIG. 3; FIG.
(A) shows a cross section on the line, and (b) shows (b)-(b) in FIG.
FIG. 3C shows a cross section along a line, and FIG. 3C shows a cross section along a line (c)-(c) in FIG.

FIG. 5 is a perspective view of a contact for a press-fit connector for a plug according to a first example of the present embodiment.

FIG. 6 is a perspective view of a press-fit connector contact for a jack according to a second example of the present embodiment.

FIG. 7 is a partial view of a contact mounting portion of the press-fit connector according to the present invention.

FIG. 8 is a partial cross-sectional view of a fitting portion of the less-fit connector shown in FIG. 7; FIG.
(A) shows a cross section on the line, and (b) shows (b)-(b) in FIG.
FIG. 3C shows a cross section along a line, and FIG. 3C shows a cross section along a line (c)-(c) in FIG.

FIG. 9 is a partial plan view of a contact mounting portion of the press-fit connector according to the present invention.

10A and 10B are views for explaining a press-fit connector according to a third example of the present embodiment, wherein FIG. 10A is a front view of the press-fit connector, and FIG. 10B is a side view of the press-fit connector. Is shown.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100, 116 contact 102 lead portion 104 press-fit portion 106 bulge portion 106b-1 press-fitting surface 108 contact portion 118 contact mounting portion 120 through-hole portion 122 connector

Claims (3)

[Claims] A lead portion, a press-fit portion extending from the lead portion, a bulge portion having a thin rectangular parallelepiped shape whose main surface is wider than the press-fit portion, and a bulge portion extending from the press-fit portion. The main surface is narrower than the bulge,
A contact portion extending from the center of the end face of the bulge portion,
The pressing is performed such that the press-fitting surfaces, which are both end portions of the end surface of the bulge portion where the contact portion is not extended, contact the step-shaped bottom of the contact insertion hole formed in the press-fit connector. In a press-fit connector contact that is press-fitted and fixed to a fit connector, a twist portion that can be arranged between the bulge portion and the contact portion so that the directions of the main surfaces of the bulge portion and the contact portion are different. A contact for a press-fit connector, wherein the contact is provided. 2. A press-fit connector provided with the press-fit connector contact according to claim 1. 3. A contact according to claim 2, wherein said press-fit connector contacts are arranged in a staggered manner.
Press-fit connector as described.