JPH062571U - connector - Google Patents

Abstract

(57) [Summary] [Purpose] To increase the mounting density of contacts. [Construction] In a connector 10, a large number of contacts 12 are assembled in a row in an external insulator 11. The signal contact 12 includes a first contact piece 12b and a first holding portion 12
a and the first terminal 12c are formed respectively. The inner insulator 13 is molded so that the pair of signal contacts 12 face each other and seal the first holding portion 12a.
The internal insulator 13 is provided with an engaging portion 13a in the direction in which the contacts are arranged. The ground contact 14 includes the second contact piece 14b, the second holding portion 14a, and the second terminal portion 14
e respectively. The inner insulator 13 and the ground contact 14 are inserted into the outer insulator 11 to engage the engaging portion 13a and the corresponding engaging portion 14c to prevent the insulator 13 from coming off.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector for mutually connecting a plate-like substrate such as a flexible printed circuit (FPC) or a printed circuit board and a base substrate such as a printed circuit board, and particularly to a connector having a large number of contacts. And a connector for high-speed transmission in which

[0002]

[Prior art]

 A conventional connector is shown in FIG. The connector 1 has an insulator 2 in the form of a horizontally long box whose two opposite faces are open, and a slider 9 which is inserted into and removed from the insulator 2. Inside the insulator 2, a plurality of conductive contacts 3 are press-fitted and held in a line in the longitudinal direction from one open end. A slider 9 is inserted into the insulator 2 from the other open end. The contact 3 has a contact piece 3a extending along one wall inside the insulator 2 and a guide portion 3d extending along the other wall facing the one wall.

Further, the contact 3 has a holding portion 3b holding the contact piece 3a and the guide portion 3d at one end, and a pair of terminal portions 3c extending from the other end of the holding portion 3b. The terminal portion 3c is soldered to the conductive portion of the base substrate 30 on the receptacle side. When the FPC 4 is inserted into the contact 3, the insertion piece 9a of the slider 9 is inserted between the contact piece 3a and the guide portion 3d. At this time, the contact piece 3a elastically tilts in a direction orthogonal to the insertion direction of the insertion piece 9a because there is a gap between the contact piece 3a and one wall of the insulator 2. That is, the insertion piece 9a is inserted while pressing the contact piece 3a against the inner wall of the insulator 2. As a result, the conductive portion of the FPC 4 comes into contact with the contact piece 3a while being pressed against it.

FIG. 7B is a connector showing another conventional example, and this connector 5 also has a plurality of contacts 7 arranged in a line in the insulator 6 in the longitudinal direction in the same manner as the previous example. Each of them is press-fitted and held. The FPC 41 has conductive parts printed on both sides. That is, in order to bring the contacts 7 into contact with each other from both sides of the FPC 41, the pair of contact pieces 7a of the contacts 7 are opposed to each other with their tips slightly narrowed. These contact pieces 7a are pressed into symmetrical positions of the insulator 6 so as to sandwich the FPC 41. The FPC 41 is provided with the reinforcing plate 8.

[0005]

[Problems to be solved by the device]

 Since the former of the above-mentioned conventional connectors is applied to an FPC having a conductive portion on one side, inserting a ground contact for connecting a ground line will make the signal line contact 3 originally necessary. Mounting density cannot be increased.

In the latter case, since each contact 7 is separately press-fitted into the insulator 6, it is difficult to unify the distance between the pair of contact pieces 7a to a desired size. , The desired contact force may not be obtained due to the variation. If the pitch of adjacent contacts 7 is narrowed, it becomes difficult to form the wall between each contact 7, and the wall must be thinned. Therefore, when the contact 7 is press-fitted or the FPC 41 is inserted, the force may be applied. It may damage the wall. Therefore, there is a problem that the mounting density of the contacts 7 cannot be increased.

Therefore, the object of the present invention is to make the contact pitch as small as possible and to increase the mounting density.

Further, it is possible to eliminate the variation in the contact pressure of the contact with the corresponding contact, maintain the desired proper contact state, and easily manufacture in a short time, which is relatively inexpensive. It is to provide a connector that can provide a connector.

[0009]

According to the present invention, an insulator, and a conductive first contact and a second contact inserted and arranged in the insulator through one open end of the insulator are provided. In the connector, including the plate-shaped substrate inserted from the other open end of the insulator and connecting the plate-shaped substrate and the base substrate to each other through the first and second contacts, the insulator is an external insulator. An inner insulator housed in the outer insulator, the first and second contacts are alternately arranged in the outer insulator, and one end of the contact piece comes into contact with the plate-shaped substrate; Has a holding part at the other end and a terminal part connected to the base substrate at the other end, and the internal insulator is the plate. The holding portion of the first contact is held in a state where the pair of contact pieces of the first contact face each other so as to elastically sandwich the substrate, and in the direction in which the first and second contacts are arranged. The second contact is held in the outer insulator and has a protruding engaging portion, and engages with the engaging portion of the inner insulator to prevent the inner insulator from being disengaged. A connector characterized by having a mating portion is obtained.

Further, according to the present invention, the first contact is integrally punched from the base material by press working, and the contact piece, the holding portion, and the terminal portion face each other in a pair. The inner insulator is one in which the pair of holding portions are integrally molded in with at least the pair of contact pieces connected to the carrier of the base material, and in a state of being separated and cut from the carrier. A connector is obtained which is characterized in that two independent first contacts are integrated.

According to the present invention, the first contact is a signal contact, the second contact is a ground contact, and the external insulator has a plurality of partition walls therein. A connector is obtained in which the signal contacts and the ground contacts are alternately incorporated between the partition walls.

[0012]

[Action]

 In the connector of the present invention, the first contact (signal contact) and the second contact (ground contact) are alternately arranged to reduce crosstalk between signals. Since the distance between the first contact and the distance between the second contacts that face each other are accurately formed at the desired size during the stamping process, the desired contact force can be reliably obtained. Lateral inner insulators reinforce the outer insulator bulkhead between adjacent contacts against the press fit of the second contact. Moreover, since only the second contact is press-fitted into the external insulator, the pressure on the external insulator is reduced. Therefore, the partition wall between adjacent contacts of the external insulator is not damaged when the second contact is press-fitted or the plate-shaped substrate is inserted. When manufacturing the first contact, the contacts are integrally punched from the base material and the inner insulator is molded so that it is easy to process. Also, since the first contact is integrated, it can be installed in the external insulator. It's easy.

[0013]

【Example】

 1 (A), 1 (B) and 1 (C) show an embodiment of the connector of the present invention.

With reference to the drawings, the connector 10 includes a laterally elongated box-shaped external insulator 11 and a conductive first contact (hereinafter, referred to as a “first contact”) held in the external insulator 11. It has a signal contact 12 and a second contact 14 (hereinafter referred to as a ground contact). In this connector 10, a plurality of ground contacts 14 and a plurality of signal contacts 12 are alternately arranged. As shown in FIGS. 2 (A) and 3, the external insulator 11 has an insertion port 11a into which the FPC 20 which is a plate-shaped substrate is inserted, substantially above the inside thereof. Further, the outer insulator 11 has a housing portion 11b, which is a space for housing the inner insulator 13, substantially on the lower side inside. In the outer insulator 11, partition walls 11c partitioning the signal contacts 12 and the ground contacts 14 in the longitudinal direction are erected so as to face inward from both sides. A signal contact 12 and a ground contact 14 are inserted between the partition walls 11c from one side, and the FPC 20 is inserted from the other side to connect the plate-shaped substrate 20 and the base substrate 30 to each other. One end of the signal contact 12 has a first contact piece 12b that contacts the FPC 20, a middle portion has a first holding portion 12a, and the other end has a first terminal connected to a conductive portion of the base substrate 30. Each part 12c is formed. Further, the external insulator 11 is provided with a hole 25 into which the guide portion 20a of the FPC 20 is inserted and a holddown 45 for increasing the strength of soldering.

The internal insulator 13 is formed by mold-in molding so as to seal the holding portions 12a of the pair of signal contacts 12 that face each other. When the internal insulator 13 is housed in the external insulator 11, the signal contacts 12 that face each other so as to elastically sandwich the FPC 20 between the contact pieces 12b are supported. In addition, a pair of engaging portions 13 a is provided on the internal insulator 13 so as to project in the direction in which the signal contacts 12 are arranged.

As shown in FIG. 2B, a second contact piece 14b that contacts the FPC 20 is provided at one end of the ground contact 14 that is inserted into and retained by the external insulator 11, and the inside of the external insulator 11 is provided at an intermediate portion. A second holding portion 14a for fixing the second terminal portion 14e and a second terminal portion 14e connected to the conductive portion of the base substrate 30 are formed at the other end portion, respectively. Further, the ground contact 14 is provided with a corresponding engaging portion 14c that engages with the engaging portion 13a from the inserting direction of the internal insulator 13 to prevent the internal insulator 13 from being disengaged. That is, the engaging portion 13a is a protrusion, and the corresponding engaging portion 14c is formed in a shape corresponding to the protrusion.

More specifically, the signal contact 12 includes an independent signal contact 12 in which a first contact piece 12b, a first holding portion 12a, and a first terminal portion 12c are formed in a substantially L shape. Are integrated into one pair. A vertical first holding portion 12a sealed by an internal insulator 13 is formed at an intermediate portion of the signal contact 12. A first contact portion 12b extends above the first holding portion 12a. These first contact pieces 12b taper toward the ends and have elasticity capable of rocking to both sides. In addition, the first contact piece 12b is formed with a first contact portion 12d which is bulged so as to approach each other at the tip end portion thereof. A first terminal portion 12c extends substantially obliquely downward to the lower portion of the first holding portion 12a so as to abut against the lower end surface of the external insulator 11 when the signal contact 12 is inserted. The first terminal portions 12c are soldered to the conductive portions on the base substrate 30.

As shown in FIG. 4, the internal insulator 13 is sealed in a first holding portion 12 a of a signal contact 12 with a carrier 15 obtained by punching a conductive metal strip as a base material with a press. It is molded in so as to stop. A pair of engaging portions 13 a that engage with the ground contacts 14 are provided at both upper ends of the inner insulator 13.

As shown in FIGS. 2B and 5, the middle portion of the ground contact 14 has a rectangular second holding portion 14 a wider than the internal insulator 13. A pair of second contact pieces 14b, which are opposed to each other at a distance, extend from the upper portion of the second holding portion 14a, and have a second contact portion 14f protruding inward at the end thereof. The second contact portion 14f contacts the contact 22 of the FPC 20. The second contact piece 14b has a tapered shape and can be elastically expanded between the two. As shown in FIG. 3, these second contact pieces 14b are located inward of the first contact portion 12d of the signal contact 12 with the second contact portion 14f engaged with the external insulator 11. It is shortened to be in position. Therefore, the FPC 20 can be inserted smoothly. A corresponding engaging portion 14c for receiving the engaging portion 13a of the internal insulator 13 is formed at the upper edge portion of the second holding portion 14a. Further, press-fitting pieces 14d project from the plate surface at both side edge portions of the second holding portion 14a. A second terminal portion 14e extending substantially obliquely downward is formed at a lower portion of the second holding portion 13a so as to hit the lower end surface of the external insulator 11 when inserted.

The FPC 20 is a flexible plate-like substrate, and is shown in detail by the cross-sectional view of FIG. That is, the FPC 20 is provided with a thin conductive metal plate GA between two flexible insulating sheets 20a, and a plurality of thin conductive portions G and S are provided on both surfaces of the insulating sheet 20a. It is arranged. The conductive portion G contacts the second contact portion 14f of the ground contact 14, and the conductive portion S contacts the first contact portion 12d of the signal contact 12. Reference numeral 50 in FIG. 6 is a reinforcing member that reinforces the FPC 20. The reinforcing member 50 is made of an insulator.

Although the FPC 20 is used in this embodiment, it goes without saying that a plate substrate such as a printed circuit board having no flexibility may be used.

In manufacturing this connector, the first holding portion is formed by punching from the metal strip plate which is the conductive base material by press working so that the signal contacts 12 are arranged to face each other. After the inner insulator 13 is molded in 12a, the signal contact 12 is separated and cut from the carrier 15, the inner insulator 13 and the ground contact 14 are inserted into the outer insulator 11, and the engaging portion 13a of the inner insulator 13 is inserted. The corresponding engaging portion 14c of the ground contact 14 is engaged. In this state, the method of holding the ground contact 14 on the external insulator 11 is adopted.

In the connector 10 of the above-described embodiment, first, the plurality of signal contacts 12 are punched out from the metal strip by press working, as shown in FIGS. 4 (A) and 4 (B). At this time, a plurality of pairs of signal contacts 12 in the metal strip are formed in the lateral direction at the same time while being arranged in the state of being mounted on the connector 10, and are joined by the carriers 15 at the upper and lower edges. Next, the two first holding portions 12 a of the signal contact 12 are integrally molded by the internal insulator 13. At this time, the engaging portion 13a is simultaneously formed. Then, the signal contacts 12 are separated from the carrier 15.

The separated signal contact 12 is inserted into the separately manufactured external insulator 11 according to the partition wall 11c. Also, a separately manufactured ground contact 14 is press-fitted between the signal contacts 12. In the signal contact 12, the engaging portion 13a of the internal insulator 13 enters into the corresponding engaging portion 14c of the ground contact 14, and the internal insulator 14 is prevented from coming off. As a result, the inner insulator 14 is retained in the outer insulator 14.

In the connector 10 of this embodiment, the ground contacts 14 and the signal contacts 12 are alternately arranged, so that crosstalk between signals is reduced. That is, the interval between the signal contacts 12 and 12 facing each other is accurately formed in the punching process according to the preset dimensions. Further, since the gaps between the ground contacts 14 and 14 are also the same, the desired contact force can be reliably obtained. The laterally sealed thickness of the inner insulator 13 reinforces the partition wall 11c of the outer insulator 11 located between the signal contact 12 and the ground contact 14 which are adjacent to each other with respect to the press-fitting of the ground contact 14. Moreover, since only the ground contact 14 is press-fitted into the external insulator 11, the pressure applied to the external insulator 11 is about half of all the contacts. Therefore, when the ground contact 14 is press-fitted or the FPC 20 is inserted, the partition wall 11c between the signal contact 12 and the ground contact 14 adjacent to each other has sufficient durability against the force applied thereto.

In manufacturing the signal contacts 12, the contacts are integrally punched out from the metal strip and the internal insulator 13 is molded, so that the processing is easy. Since the pair of signal contacts 12 facing each other are integrated, the two signal contacts 12 are simultaneously mounted on the external insulator 11. The ground contact 14 need only be press fitted into the outer insulator 11.

[0027]

[Effect of device]

 As described above, the present invention can make the contact pitch of the connector as small as possible and increase the mounting density. Further, the interposition of the ground contact can reduce crosstalk between signals.

Further, it is possible to eliminate the variation in contact pressure of the contact with the corresponding contact, maintain the desired proper contact state, and easily manufacture in a short time, and the connector is relatively inexpensive. Can be provided.

[Brief description of drawings]

1A is a plan view showing an embodiment of a connector of the present invention, FIG. 1B is a front view, and FIG. 1C is a side view.

FIG. 2A is a vertical sectional side view of a mounting portion of a first contact (signal contact) in a connector of the present invention,
(B) is a vertical cross-sectional side view of the mounting portion of the second contact (ground contact).

FIG. 3 is a vertical sectional front view in which a part of the connector of FIG. 1 is cut away.

4A is a front view of a first contact connected to a carrier, and FIG. 4B is a side view.

FIG. 5 is a front view of a second contact.

FIG. 6 is a cross-sectional view of a plate-shaped substrate.

7A is a vertical sectional view of a conventional connector, and FIG. 7B is a vertical sectional view of another conventional connector.

[Explanation of symbols]

 Reference Signs List 10 connector 11 external insulator 11c partition wall 12 first contact (signal contact) 12a first holding portion 12b first contact piece 12c first terminal portion 13 internal insulator 13a engaging portion 14 second contact (ground) Contact) 14a Second holding portion 14b Second contact piece 14c Corresponding engaging portion 14e Second terminal portion 20 FPC 21 FPC conductive portion 30 Base substrate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Sasaki 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (3)

[Scope of utility model registration request] 1. An insulator, and a conductive first contact and a second contact inserted and arranged in the insulator from one opening end of the insulator, and the inside of the insulator from the other opening end of the insulator. In the connector for inserting the plate-shaped substrate into the connector and connecting the plate-shaped substrate and the base substrate to each other through the first and second contacts, the insulator is an external insulator, and an interior accommodated in the external insulator. An insulator, and the first and second contacts are alternately arranged in the external insulator, one end of the contact piece comes into contact with the plate substrate, a middle portion of the holding portion, the other end portion. Has a terminal portion connected to the base substrate, and the internal insulator is elastic by the plate substrate. The holding portion of the first contact is held in a state in which the pair of contact pieces of the first contact are opposed to each other so as to be sandwiched between them, and protrude in the direction in which the first and second contacts are arranged. An engaging portion, the second contact is held in the outer insulator, and has a corresponding engaging portion that engages with the engaging portion of the inner insulator and prevents disengagement of the inner insulator. A connector characterized by having. 2. The first contact is integrally punched from a base material by press working, and the contact piece, the holding portion and the terminal portion face each other in a pair, and the internal insulator is And a pair of holding portions integrally molded in a state in which at least the pair of contact pieces are connected to the carrier of the base material, and two independent first portions in a state of being separated and cut from the carrier.
2. The connector according to claim 1, wherein the contacts are integrated. 3. The first contact is a signal contact, the second contact is a ground contact, the external insulator has a plurality of partition walls therein, and the partition walls are provided between the partition walls. 2. The connector according to claim 1, wherein the signal contacts and the ground contacts are alternately incorporated.