KR20110109844A - Electric connector for flat conductor - Google Patents

Abstract

assignment
It is an object of the present invention to provide an electrical connector for a balanced conductor that enables high-speed signal transmission while enabling signal selection and change with a support terminal.
Resolution
The signal terminal 20 extends in the front-rear direction to form an arm-shaped member in which the contact portion 22 and the connection portion 21 are formed at different positions, and the support terminal 30 extends in the front-back direction and the contact portion 32 at different positions. ) Arm portion 30A provided with a connecting portion 31, a support arm portion 35 positioned opposite to the arm portion with respect to the balanced conductor, in addition to the arm portion, and the support arm with respect to the arm portion; A support portion 36 having a connecting portion 34 for connecting the portion within the terminal groove, and movably supporting the movable member 50 for pressurizing the balanced conductor, is formed at the tip portion of the supporting arm portion, and the signal terminal ( 20 and the support terminal 30 have a fixing part 23; 33 which is press-fitted into the corresponding fixing part 19 of the terminal groove 18 in the portion between the contact portion and the connecting portion, and the terminal groove has a signal terminal and a ground. Optionally insert all terminals As to the shape that is formed.

Description

ELECTRIC CONNECTOR FOR FLAT CONDUCTOR

The present invention relates to an electrical connector for a balanced conductor.

As the flat conductor, a flexible substrate (FPC), a flat cable (FFC), and the like are known. Such a balanced conductor is often used for a multipole electrical connector mounted on a circuit board because the conductors are densely arranged. In order to arrange terminals densely in correspondence with the said flat conductor, the multi-pole electrical connector has the terminal manufactured by maintaining the flat plate surface of a metal plate as it is at right angles to a plate surface. As such a connector, the connector disclosed by patent document 1 is known.

In the connector of patent document 1, the terminal manufactured holding the plate surface mentioned above is comprised from the signal terminal (signal contact) and the support terminal (support contact). The support terminal movably supports the movable member (operation member) for pressing the balanced conductor. In patent document 1, a signal terminal and a support terminal are manufactured in a different shape. The signal terminal is manufactured as an arm-shaped member that connects a contact portion in contact with the balanced conductor and a connection portion soldered to the circuit board in a nearly straight shape so as to be suitable for high-speed signal transmission, except that the projection is caught in the terminal groove of the housing. There is no protruding or extending portion between the contact portion and the connecting portion. This makes it possible to reduce the influence of stubs in high-speed transmission in the G (giga) bps band. On the other hand, the supporting terminal has the same shape as the signal terminal at the contact portion and the connecting portion at its local portion, but most of the other support forms the shape different from the signal terminal. That is, the signal terminal manufactured as the arm-shaped member has the same shape as the support terminal only in a limited portion of the contact portion and the connection portion, but the arm-shaped member as a whole is completely different from the support terminal. And in patent document 1, the terminal groove of the housing | casing which accommodates a terminal is also formed in the different shape corresponding to the signal terminal and the support terminal, respectively.

Japanese Unexamined Patent Publication No. 2009-266440

However, in Patent Literature 1, the signal terminals and the support terminals have different shapes, and since the terminal grooves into which they are inserted also have different shapes corresponding to them, the signal terminals and the support terminals are mutually changed by design changes. Can't respond to

In this type of connector, not only signal terminals but also ground terminals are often arranged. In patent document 1, a support terminal can be used as a ground terminal. In that case, the support terminal used as a ground terminal is highly likely to require the above position change. However, patent document 1 cannot respond to such a request.

In view of such circumstances, an object of the present invention is to provide an electrical connector for a balanced conductor that enables a position change with a support terminal while maintaining the shape of a signal terminal that enables high-speed signal transmission. .

An electrical connector for a balanced conductor according to the present invention includes a metal plate with a signal terminal and a support terminal having a contact portion for contact with a balanced conductor inserted forward in a receiving portion of the housing and a connection portion for solder connection to a circuit board outside the housing. It is manufactured while maintaining a flat plate surface of the housing is inserted into the terminal groove of the housing and maintained in a direction perpendicular to the plate surface.

In such a flat conductor electrical connector, in the present invention, the signal terminal forms an arm-shaped member which extends in the front-rear direction and has a contact portion and a connection portion formed at different positions, and the support terminal extends in the front-rear direction and contacts the contact portion at different positions. An arm portion having a connection portion, a support arm portion located opposite to the arm portion with respect to the balanced conductor, in addition to the arm portion, and a connecting portion connecting the support arm portion in the terminal groove with respect to the arm portion, A support portion for movably supporting a movable member for pressurizing the balanced conductor is formed at the tip portion of the support arm portion, and the signal terminal and the support terminal are press-fitted into the corresponding fixing portion of the terminal groove in the portion between the contact portion and the connection portion. Having a pinned portion, the terminal groove is shaped to selectively insert both a signal terminal and a ground terminal And it is characterized in that it is formed.

In the present invention having such a configuration, since the signal terminals are formed before and after the arm and the connecting portion, the signals are transmitted in a straight line in a short distance and high speed transmission is also possible.

On the other hand, in addition to the arm part provided with the contact part and connection part same as a signal terminal, the support terminal has comprised the arm part and the support arm part by the connection part, and enables the electricity supply between a contact part and a connection part, At the same time, the movable member is movably supported at the support formed in the support arm.

In addition, the arm portion of the signal terminal and the support terminal constituting the arm-shaped member is formed with a fixing part, and is fixed in a fixed portion formed in the terminal groove of the housing, the terminal groove can be inserted both the signal terminal and the support terminal, both terminals The arrangement position is arbitrarily selected and determined, and the position of both terminals can be changed without changing the mold of the housing.

In the present invention, since the support terminal can conduct electricity between the contact portion and the connection portion, it can be used as a ground terminal or a power supply terminal. Furthermore, while the signal terminal is suitable for high speed transmission, the support terminal can also be used as a signal terminal if it is for low speed signal transmission.

In the present invention, the terminal groove of the housing is formed between the upper wall and the lower wall of the housing, an island-shaped fixing portion is formed in the terminal groove, and the retaining portion of the signal terminal or the supporting terminal is press-fitted between the fixing portion and the lower wall. Can be fixed. Therefore, in this case, the signal terminal constituting the arm-shaped member is present between the fixing portion of the island shape and the lower wall in the terminal groove, while the supporting terminal has an arm portion between the fixing portion and the lower wall of the supporting terminal. In addition to being present at the support arm, there is a support arm between the fixing part and the upper wall.

As described above, in the present invention, since the signal terminal is formed as an arm-shaped member having a fixed portion formed thereon, and the support terminal has a support arm portion for supporting the movable member in addition to the arm portion, the terminal grooves are made the same. It is possible to selectively insert the signal terminal and the support terminal into any terminal groove while securing the high speed signal transmission characteristic of the signal terminal, and thus, a terminal arrangement capable of responding to the request at the time of use without changing the housing mold. It is possible to provide a connector having a.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which looked at the balanced conductor before connection with the connector of 1st Embodiment of this invention from the back.
FIG. 2 is a perspective view of the connector and the balanced conductor of FIG. 1 viewed from the front. FIG.
3 is a cross-sectional view when there is no terminal of the connector of FIG. 1.
4 is a cross-sectional view of the movable member with respect to the connector and the balanced conductor in FIG. 1 in an open position, (A) is a position of a support terminal, and (B) is a cross section at a position of a signal terminal.
FIG. 5 is a cross-sectional view of the connector (FIG. 1) after connection of the balanced conductor (moving member is in a closed position), (A) of the support terminal, and (B) of the signal terminal.
FIG. 6: shows the modification with respect to the signal terminal of this invention, (A) has shown the case where the to-be-pressed part comprises triangular small pieces, and (B) does not have a small piece.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on an accompanying drawing.

1 and 2 are overall perspective views showing a connector 1 of the present embodiment and a balanced conductor F inserted into and connected to the connector 1 in a state before the connection thereof, and FIG. 1 is a rear view. And FIG. 2 is a view from the front.

In Fig. 1 and Fig. 2, reference numeral F denotes a flat conductor and extends long from the front end located on the connector 1 side to the rear. In the drawing, only a part of the front end side is shown and the other part is omitted. It is. The flat conductor F is exposed on the lower surface of the front end portion, and the connecting conductor portion is exposed, and the contact portion of the two types of terminals described later can be contacted.

The connector 1 has the connector main body 10 and the movable member 50 supported by the connector main body 10 and rotatable. The movable member 50 is rotatable between the open position which enables the front end of the flat conductor F to be inserted into the connector main body 10, and the closed position which presses the inserted flat conductor. When the movable member 50 is in the closed position, the connector 1 has a substantially rectangular parallelepiped shape.

The connector main body 10 has a housing 11 made of an electrically insulating material, two types of terminals 20 and 30 held by the housing 11, and a fixing bracket 40. The two kinds of terminals 20 and 30 are arranged with two types of terminals 20 with the width direction of the balanced conductor F as the arrangement direction, and the other type of terminals 30 next to them. It is positioned to repeat the arrangement, and the fixing bracket 40 is located outside the arrangement range of these terminals 20 and 30. The housing 11 includes side walls 12 positioned at both ends in the arrangement direction of the terminals, lower walls 13 connecting both side walls 12 at their lower portions, and front walls positioned at the front. (14) and an opening having an upper wall 15 positioned on the front wall 14 integrally and opened upwardly and rearward between both sidewalls 12 above the lower wall 13; 16) is formed. The opening 16 functions as a space for the placement and operation of the movable member 50 described above, in the housing portion for the insertion of the balanced conductor F described later.

In the housing 11, along the inner surface of the side wall 12 mentioned above, the support groove 17 for the fixing bracket 40 made from the metal plate is formed, and the fixing bracket 40 is attached here. . The fixing bracket 40 extends slightly from the bottom surface of the housing 11, is soldered to the corresponding portion of the circuit board (not shown), and contributes to the fixing of the housing 11.

Between both said support grooves 17, the some terminal groove 18 in which a terminal is put is formed. Although the terminal consists of two types of signal terminal 20 and support terminal 30 which are mentioned later, all are manufactured keeping the flat plate surface of a metal plate, Therefore, the said terminal groove 18 also makes the slit suitable for the plate thickness. It is a groove of the shape. As shown in Fig. 3, the terminal groove 18 is formed by penetrating in the front-rear direction (left and right direction in Fig. 3) at a groove width corresponding to the plate thickness of the terminal in a direction perpendicular to the ground. have. The terminal groove 18 penetrates the front wall 14 back and forth between the upper wall 15 and the lower wall 13 of the housing, and the upper surface of the lower wall 13 is formed at the rear portion at which the opening 16 is formed. Is going crazy. In the terminal groove 18, an island-shaped fixing portion 19 is formed at the rear of the front wall 14 between the upper wall 15 and the lower wall 13 in the vertical direction, and the terminal groove 18 is provided. The connection region 18C which makes the upper region 18A on the upper side, the lower region 18B on the lower side, and the both regions communicate with each other on all sides, and furthermore, the opening portion 16 in the front-rear direction. Is divided into the open area 18D formed in the portion of the lower wall 13 corresponding to These upper region 18A, lower region 18B, connecting region 18C and open region 18D are in communication with each other. In the terminal groove 18, the groove bottom of the open region 18D is located one step below the groove bottom of the lower region 18B. Thereby, while allowing the displacement of the contact portions 22, 32 of the terminals 20 and 30 to be described later, the gap that prevents the flux from reaching the contact portion even when the flux rises during solder connection of the terminal is allowed. To form. The terminal grooves 18 thus formed are also shown in Figs. 4A and 4B as well as the terminal grooves into which the signal terminals 20 are inserted and the terminal grooves into which the supporting terminals 30 are inserted. It is formed in the same shape. Therefore, both the signal terminal 20 and the support terminal 30 can be selectively inserted into any terminal groove 18.

The signal terminal 20 manufactured while maintaining the flat plate surface of the metal plate is formed as an arm-shaped member extending back and forth, as shown in FIG. 4 (B), and the connecting portion 21 at the front end portion and the contact portion (at the rear end portion). 22), furthermore, it has a projection 23 as a defendant government in the middle part. The said connection part 21 is formed as a part which protrudes out of the housing 11, and is bent downward, The lower edge of the connection part 21 is located below the bottom face of the housing 11, and is not shown in the figure. When placed on top of each other, solder connection is made with respect to the counterpart. This signal terminal 20 extends to the middle of the housing 11 at the rear, and the contact portion 22 protrudes upward from the rear end thereof. The projections 23 as the pinned portions are formed at two points at the upper edge of the middle portion. The signal terminal 20 thus formed is press-fitted between the island-shaped fixing portion 19 and the lower wall 13 of the terminal groove 18 of the housing 11. The projections 23 penetrate into the lower edge of the fixing portion 19 to determine the fixing position. The rear part of the signal terminal 20 protrudes rearward from the front wall 14 of the housing 11, and furthermore, the lower edge forms a gap between the bottom of the groove of the terminal groove 18 and is elastically downward. Warping is possible. That is, when the said contact part 22 receives the downward force from the balanced conductor F, this contact part 22 is elastically displaceable downward. The signal terminal 20 has a small piece-like to-be-pressed portion 24 projecting upward on the front end side, and the front edge thereof is pressed backward when the terminal is inserted, and the rear edge of the to-be-pressed portion 24. Is inserted into the terminal groove 18 of the signal terminal 20 until it touches the front surface of the fixing portion 19. The rear edge of the to-be-pressed part 24 abuts against the front surface of the fixing part 19, whereby the displacement of the connection part 21 side can be prevented when the contact part 22 is displaced downward by the force. .

On the other hand, as shown in Fig. 4A, the support terminal 30 is manufactured while maintaining a flat plate surface of a metal plate similarly to the signal terminal 20, but the arm portion having the same shape as the signal terminal 20 is formed. In addition to 30A, it has the support arm part 35 connected by the connection part 34 in the front end of the arm part 30A.

The arm portion 30A has the same shape as the signal terminal 20 as described above, and has a connecting portion 31 at the front end, a contact portion 32 at the rear end, and a protrusion 33 as a fixing part at the middle portion. . The arm part 30A can elastically bend at the rear part, and the contact part 32 can also be elastically displaced similarly to the case of the signal terminal 20. FIG.

The connecting portion 34 of the support terminal 30 is located on the right side of the island-shaped fixing portion 19 of the housing 11 and extends upward from the front end of the arm portion 30A.

The support arm portion 35 extends rearward from the upper end of the connecting portion 34. The support arm portion 35 extends rearward through the fixed portion 19 and the upper wall 15, and a concave curved support portion 36 is formed at the lower edge of the rear end. The support arm 35 is made of high rigidity and wider in width (up and down dimension in the drawing) than the arm 30A positioned below the support arm 35.

When the support terminal 30 is inserted into the terminal groove 18 from the front to the rear, the arm portion 30A, like the signal terminal 20, has an island-shaped fixing portion 19 and a lower wall 13. The support arm 35 is disposed between the fixing portion 19 and the upper wall 15 while being press-fitted in between).

In the present embodiment, the signal terminal 20 and the support terminal 30 are arranged so that one support terminal 30 is positioned adjacent to the two signal terminals 20, and the support terminal 30 is a signal. It is used as a ground terminal with respect to the terminal 20.

The movable member 50 is made of the same electrically insulating material as the housing 11, has a width over the terminal arrangement range as shown in FIGS. 1 and 2, and the opening 16 of the housing 11. ) As described above, the movable member 50 is movably supported between the open position and the closed position. In the open position shown in FIGS. 4A and 4B, the groove portion is provided at the lower portion. 51 is formed. The groove portion 51 is formed at a position corresponding to the terminal groove 18 for the signal terminal 20 and the support terminal 30 in the terminal arrangement direction, penetrates back and forth, and the groove portion (at the lower end position). The shaft part 52 which connects the opposing groove inner surfaces of 51 is formed. The shaft portion 52 has a substantially circular circumferential surface and is supported so as to be freely rotatable in the support portion 36 formed in a concave curved shape on the support arm portion 35 of the support terminal 30. However, since the signal terminal 20 does not have the above supporting arm portion, the shaft portion 52 corresponding to the signal terminal 20 is not supported at all. The movable member 50 is supported so that the movable member 50 can be freely rotated by the housing at an axial part not shown in both the width direction (terminal arrangement direction). 4 (A) and (B), the upper part where the groove part 51 is not formed forms the operation part 53 in the said movable member 50, and is upper than the upper wall 15 of the housing 11 in FIG. It protrudes. The movable member 50 receives the operation force by the operation part 53 and moves the rotary member between the open position and the closed position.

The said movable member 50 forms the press part which the back surface (seat surface) across the operation part 53 presses the balanced conductor F in the closed position in the lower end part in FIG.4 (A) and (B).

The connector 1 of this embodiment is attached to a circuit board (not shown) and used. As for the signal terminal 20 and the support terminal 30, those connection part 21 and the connection part 31 are solder-connected with the corresponding circuit part of a circuit board. At the same time, the fixing bracket 40 is also soldered to the circuit board at the fixing portion. In this way, the connector 1 is fixed to the circuit board.

In use, the movable member 50 is brought to the open position as shown in Figs. 4A and 4B, and the opening 16 of the housing 11 is largely opened toward the rear side. The front end of the flat conductor F shown in FIG. 1 is inserted into the opening 16. In FIGS. 4A and 4B, the balanced conductor F is provided between the contact portion 22 of the signal terminal 20 and the contact portion 32 of the support terminal 30 and the movable member 50 in the open position. It is inserted forward and the front edge of the balanced conductor F is brought into contact with the rear face of the front wall 14 of the housing 11 and brought to a predetermined insertion position. At this predetermined insertion position, the connecting conductor portion exposed to the lower surface of the balanced conductor F is located on the contact portion 22 of the corresponding signal terminal 20 and the contact portion 32 of the support terminal 30.

Thereafter, an operating force is applied to the operating portion 53 of the movable member 50 to move the movable member 50 in the closed position shown in FIGS. 5A and 5B. The movable member 50 presses the balanced conductor F downward in the press part. The balanced conductor F pressed by the movable member 50 presses the contact portion 22 of the signal terminal 20 and the contact portion 32 of the support terminal 30 downward to elastically displace it. In this way, by the contact part 22 and the contact part 32, the signal terminal 20 and the support terminal 30 are electrically connected with the contact connection part of the balanced conductor F with a contact pressure (contact force). The support terminal 30 functions as a ground terminal when the corresponding connection conductor portion of the balanced conductor F and the corresponding circuit portion of the circuit board are ground circuits. The arrangement of these terminals 20 and 30 can be set variously and freely. When the signal terminal 20 is denoted by S, the ground terminal by the support terminal 30 is denoted by G, the low speed signal terminal is denoted by L, and the power supply terminal denoted by D,. … GSSGSSG… … Differential signal array,. … GSSGLGDDD… … Composite array, … GSSSSSGSSSSSG... … An arrangement with fewer ground terminals is possible.

In the present invention, the signal terminal 20 is formed as one straight arm-shaped member. Therefore, since the contact path 22 and the connection part 21 form a transmission path at the shortest distance of a straight shape, and do not have the part which forms a bypass path, the influence of a stub can be reduced and it is used for the transmission of a high speed signal. In addition, since the support terminal 30 can also be used as a ground terminal, the support terminal 30 is positioned between the signal terminals 20 to provide a shielding effect.

In addition, in this embodiment, the arm part 30A of the support terminal 30 is substantially the same shape as the signal terminal 20, and the terminal groove 18 becomes a common shape with respect to both terminals 20 and 30. As a result, both terminals can be selectively inserted into any terminal groove, bringing freedom to the arrangement of the terminals. Furthermore, if the arm part of the signal terminal 20 and the support terminal (ground terminal) 30 is made the same shape, all the contact pressures in a contact part will become the same, and a stable contact force will be obtained.

In addition, in this embodiment, the support terminal 30 can be used not only as a ground terminal, but also as a signal terminal or a power supply terminal as needed. When using as a signal terminal, since the support arm part 35 exists between the contact part 32 and the connection part 31 via the connection part 34, it is preferable to use it for the low speed signal which does not affect the transmission speed. Do.

The present invention can be variously modified in addition to the forms shown above. For example, the signal terminal 20 is ideally required to be connected between the contact portion 22 and the connection portion 21 in a straight shape, and it is preferable that the small piece of projecting portion be made as small as possible. As an example, as shown in Fig. 6 (A), the to-be-pressed part 24 for press-in of the signal terminal 20 is made into a triangle, while the signal bypass area during signal transmission is made as small as possible, but at the front edge 24A. It can be made to receive the pressure input. Furthermore, as shown in FIG. 6 (B), the front side edge of the connecting portion 21 may be 24A without the small piece portion for the portion to be pressurized.

1: Connector
11: housing
13: bottom wall
15: upper wall
18: terminal groove
19: fixing part
20: signal terminal
21: connection part
22: contact
23: Defendant Government
30: support terminal
30A: Arm part
31: connection
32: contact portion
33: Defendant Government
34: connection
35 support arm
36: support part
F: balanced conductor

Claims (2)

Signal terminals and support terminals, which have contacts for contact with flat conductors inserted forward in the receptacle of the housing and connections for solder connection to the circuit board outside the housing, are manufactured while maintaining the flat plate surface of the metal plate and the terminals of the housing An electrical connector for a flat conductor inserted into a groove and arranged in a direction perpendicular to the plate surface, the electrical connector comprising:
The signal terminal extends in the front-rear direction and forms an arm-shaped member in which contact portions and connecting portions are formed at different positions,
The support terminal extends in the front-rear direction and includes an arm portion having contact portions and connecting portions at different positions, a support arm portion positioned opposite to the arm portion with respect to the balanced conductor, in addition to the arm portion, and the arm portion. A connecting portion for connecting the supporting arm portion within the terminal groove, the supporting portion movably supporting a movable member for pressurizing the balanced conductor at a tip portion of the supporting arm portion,
The signal terminal and the support terminal have a fixing part which is pressed into a corresponding fixing part of the terminal groove in a portion between the contact portion and the connecting portion,
The terminal groove is a flat conductor electrical connector, characterized in that both the signal terminal and the support terminal is formed in a shape that can be selectively inserted. The method of claim 1,
The terminal groove of the housing is formed between the upper wall and the lower wall of the housing, and an island-shaped fixing portion is formed in the terminal groove, and the fixing portion of the signal terminal or the supporting terminal is pressed into and fixed between the fixing portion and the lower wall. Electrical connector for flat conductors.

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