TWI552456B - Electrical connectors for flat conductors - Google Patents

Description

Flat conductor electrical connector

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

As the flat conductor, a flexible substrate (FPC), a flat cable (FFC), and the like are known. Since the flat type conductor wires are closely arranged, they are mostly used for multi-pole electrical connectors mounted on a circuit board. The multi-pole electrical connector has a terminal which is formed by maintaining a flat plate surface of the metal plate in a state in which the terminal is arranged in a state perpendicular to the flat-shaped conductor, and is arranged at a right angle to the plate surface. As such a connector, the connector disclosed in Patent Document 1 is well known.

The electrical connector is also widely used for high speed signal transmission. In the high-speed signal transmission connector, the terminal formed by maintaining the above-described board surface is formed, for example, by a signal terminal (signal connector) and a support terminal (supporting joint) as shown in Patent Document 2. The support terminal movably supports a movable member (operation member) for pressing the flat type conductor. In Patent Document 2, the signal terminal is formed so as to be suitable for high-speed signal transmission, and is formed as an arm member that connects a contact portion that is in contact with the flat conductor and a connection portion that is soldered to the circuit board to be substantially linear, except for the locking. Terminal to the housing In addition to the protrusion of the groove, there is no protruding or extending portion between the contact portion and the connecting portion. Thereby, the influence of the high-speed transmission lead of the G (giga)bps band can be reduced. Further, the support terminal has an arm portion that has the same shape as the signal terminal from the contact portion to the connection portion, and has an upper end of the connection portion that stands up at an intermediate position of the arm portion and extends parallel to the arm portion Support arm. The support arm portion has a support portion that movably supports the movable member. According to Patent Document 2, since the signal terminal of the arm member has the same shape as the arm portion of the support terminal, any one of the signal terminal and the support terminal can be selectively inserted into the plurality of terminal grooves.

In order to improve the high-speed transmission characteristics, it is necessary to make the impedance of the connector as close as possible to the impedance of the circuit board and the object to be connected.

However, between the terminal grooves formed in the casing, there is a partition wall that partitions the two and supports the terminals by the plate surface of the terminal, and the resin material of the material of the casing has a higher specific capacitance. Therefore, the structure in which the bonding capacity between the adjacent terminals is easily increased is likely to be significantly lower than the impedance of the circuit board and the connection object.

Therefore, in Patent Document 3, by providing a hollow portion in the thickness range of the partition wall of the casing, an air layer is formed between the adjacent terminals, and the dielectric ratio between the terminals is lowered, and as a result, the impedance of the connector can be improved. .

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2009-266440

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2011-216220

[Patent Document 3] Japanese Laid-Open Patent Publication No. 2012-074341

In Patent Document 3, since the hollow portion is formed in the thickness range of the partition wall while supporting the surface of the terminal on both sides of the partition wall of the casing between the terminals, the hollow portion is considered in order to maintain the strength of the partition wall. The size of the partition wall must be increased to cause the plurality of terminals to become inseparently arranged. When the thickness of the partition wall is narrowed in order to perform close alignment, there is a problem that the strength of the partition wall is lowered due to the presence of the hollow portion.

Further, in order to form a hollow portion in the partition wall which is not originally thick, the mold for molding the casing is complicated and costly.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus which can be easily manufactured and can be closely arranged, without deteriorating the strength of the casing and improving the impedance, and can be suitably applied to Electrical connector for flat conductors for high speed signal transmission.

The electrical connector for a flat conductor of the present invention has a signal end The sub-terminal and the support terminal are formed by maintaining a flat plate surface of the metal plate, are inserted into the terminal groove of the casing, and are arranged and held at right angles to the plate surface, and the terminals have a receiving portion for facing the casing. The flat conductor that is inserted in front contacts the contact portion.

In the flat connector electrical connector, in the present invention, the signal terminal is an arm member and extends in the front-rear direction, and a contact portion is formed at a different position; and a connection portion for soldering to the circuit substrate outside the casing The support terminal is formed with an arm portion that extends in the front-rear direction and has a contact portion, and has a support arm portion that positions the flat conductor on the opposite side of the arm portion, and the arm portion, in addition to the arm portion. a connecting portion that connects the support arm portion, and a support portion that movably supports a movable member for pressurizing the flat conductor is formed at a distal end portion of the support arm portion, and the signal terminal is between the contact portion and the connection portion And a portion of the support terminal that is between the contact portion and the connection portion, respectively, has a fixed portion that is pressed into a corresponding fixing portion of the terminal groove, and the terminal groove is any one of a signal terminal and a support terminal. a selectively inserted shape is formed between the upper wall and the lower wall of the casing, and an island-shaped fixing portion is provided in the terminal groove, and the fixed portion of the signal terminal or the supporting terminal is at the fixing portion The lower wall is fixed by a press-fitting force acting in the vertical direction, and at least a part of the terminal groove is in a front region formed by the island-shaped fixing portion and a front portion closer to the fixing portion in the front-rear direction. Having: guiding the inner wall surfaces of the grooves at right angles to the front surface of the plate surface in the same direction as guiding insertion of the terminals A wide area with a wide groove width.

In the present invention having such a configuration, since any portion of the front region of the terminal groove has a wide width region, an air layer is formed on both sides or one side of the terminal in the wide region, and as a result, the impedance of the connector is obtained. Becomes high. Since the portion of the terminal corresponding to the front region occupies a large number of the surface area of the terminal, it is extremely effective. In the portion other than the portion in which the wide width region is formed, the terminal groove can be supported by the terminals on both sides of the terminal, whereby the supporting force can be secured. Since the casing has an island-shaped fixing portion in the vicinity of the wide-width region, the shape of the wide region does not cause a decrease in the strength of the casing.

In the present invention, the terminal groove is in a wide range in the front-rear direction, and the upper end groove surface or the lower end groove surface of the terminal groove corresponding to at least one of the upper end edge and the lower end edge of the terminal may be formed. The narrow groove portion having a narrow groove width in the wide width region. The groove depth of the narrow groove portion may be extremely small, and the range of the wide width region is not substantially reduced, and the terminal can be surely maintained at a certain position in the thickness direction thereof, so that the mounting position of the connection portion is stable and has the mounting position. As a result, the thickness of the air layer between the adjacent terminals is constant regardless of which terminal is constant.

According to the present invention, as described above, the fixed portion of the terminal fixed by the fixing portion provided in the housing terminal groove in an island shape and the front portion of the terminal groove corresponding to the portion formed with the front portion thereof Setting width In the wide portion, an air layer is formed between the terminal and the terminal. Therefore, even if an air layer is formed on the plate surface side of the terminal in the wide portion, the terminal groove does not substantially reduce the strength of the casing. Moreover, the wide width is easy to manufacture, and the impedance of the connector can be surely improved.

1‧‧‧Connector

11‧‧‧Shell

12‧‧‧ side wall

13‧‧‧The lower wall

14‧‧‧ front wall

15‧‧‧Upper wall

16‧‧‧Receiving department (opening)

17‧‧‧ fastener groove

18‧‧‧ terminal trench

18A‧‧‧Upper area

18B‧‧‧ front area

18B-1‧‧‧Cone area

18B-2‧‧‧ flat area

18C‧‧‧Linked area

18D‧‧‧Open rear area

19‧‧‧ Fixed Department

20‧‧‧ Signal Terminal

21‧‧‧Connecting Department

22‧‧‧Contacts

23‧‧‧protrusion (fixed part)

30‧‧‧Support terminals

30A‧‧‧arm

31‧‧‧Connecting Department

32‧‧‧Contacts

33‧‧‧protrusion (fixed part)

34‧‧‧Connecting Department

35‧‧‧Support arm

36‧‧‧Support

50‧‧‧ movable components

51‧‧‧Ditch

52‧‧‧Axis

53‧‧‧Operation Department

F‧‧‧flat conductor

Fig. 1 is a perspective view showing the flat conductor before being inserted into the connector according to the first embodiment of the present invention from the side after the insertion side of the flat conductor.

Fig. 2 is an enlarged cross-sectional view showing a portion of the connector of Fig. 1 with the movable member omitted.

Figure 3 is a longitudinal sectional view showing the movable member in the open position in a state where the connector of Figure 1 has no terminal, and the position of the terminal to be inserted is indicated by a two-dot chain line, (A) is at the position of the support terminal. The sectional view, (B) is a sectional view of the position of the signal terminal.

Fig. 4 is a longitudinal sectional view showing the movable member in an open position in a state in which the connector of Fig. 3 is inserted with a terminal, (A) is a sectional view at the position of the supporting terminal, and (B) is a signal at the signal. A sectional view of the position of the terminal.

Figure 5 is a longitudinal section of the face at right angles to the paper surface of Figure 3 when the connector of Figure 3 is inserted, (A) is the VA-VA section of Figure 3 (A), and (B) is Figure 3. (B) VB-VB section.

Figure 6 is a view corresponding to the position of Figure 5 (B) of a modification of the present invention. Sectional view.

Fig. 7 is a cross-sectional view corresponding to the position of Fig. 5(B) according to another modification of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a perspective view showing the state before the connector 1 of the present embodiment is connected to the flat conductor F to be connected to the connector 1 and is shown in a rear view.

In Fig. 1, the symbol F is a flat conductor, and extends from the front end portion on the side of the connector 1 toward the rear. In the figure, only a part of the front end portion side is shown, and the other portions are omitted. In the flat conductor F, a sheet-shaped reinforcing member F1 is adhered to the upper surface of the front end portion, and a connecting conductor portion is exposed on the lower surface, and is in contact with a contact portion of two kinds of terminals to be described later. Moreover, the flat type conductor F is a side edge located on both sides in the width direction, and has a locking portion F2 that protrudes in an ear shape.

The connector 1 has a connector body 10; and a movable member 50 rotatably supported by the connector body 10. The movable member 50 is rotatable between an open position shown in FIG. 1 in which the front end portion of the flat type conductor F can be inserted into the connector body 10 and a closed position in which the flat type conductor that has been inserted is pressed. When the movable member 50 is in the closed position, the outer shape of the connector 1 is substantially rectangular parallelepiped.

The connector body 10 has a system made of an electrically insulating material. The housing 11 is made up of two kinds of terminals 20 and 30 and a fixing fastener 40 held by the housing 11. Two kinds of the terminals 20 and 30 are arranged to overlap each other. When the width direction of the flat conductor F is arranged as an arrangement direction, one type of terminal 20 is disposed, and other types of terminals 30 are disposed beside the same, and the fixed fastener 40 is located. The terminals 20, 30 are arranged outside the range. The casing 11 has a side wall 12 at both ends in the direction in which the terminals are arranged, a lower wall 13 connecting the side walls 12 at the lower portions of the side walls, a front wall 14 at the front, and a front wall. The upper wall 15 of the upper surface of the upper surface 15 is formed with an opening portion 16 that is open upward and rearward, between the side walls 12 and the side walls 12 of the upper side. The opening portion 16 serves as a receiving portion into which the flat conductor F to be described later can be inserted, and functions as a space in which the movable member 50 can be disposed and can be operated.

In the casing 11, a fastener groove 17 for a fixing fastener 40 made of a metal plate is formed along the inner surface of the side wall 12, and a fixing fastener 40 is attached to the member groove. The fixing fastener 40 is exposed from the bottom surface of the casing 11 and welded to a corresponding portion of a circuit board (not shown) to facilitate the fixing of the casing 11.

A plurality of terminal grooves 18 for accommodating the terminals are formed between the fastener grooves 17 in the width direction. The terminal is composed of two types of terminals, a signal terminal 20 and a support terminal 30, which will be described later, and is formed by a flat plate surface on which a metal plate is maintained. Therefore, the terminal groove 18 is formed in a slit shape suitable for the thickness of the plate. ditch. As shown in FIGS. 3(A) and 3(B), the terminal groove 18 is formed to penetrate in the front (right) rear (left) direction, and partially has a wide portion as will be described later. The aforementioned terminal groove The 18 is formed between the upper wall 15 and the lower wall 13 of the casing, penetrates the front wall 14 forward and backward, and reaches the upper surface of the lower wall 13 at the rear portion where the opening portion 16 is formed. The terminal groove 18 is also shown in FIG. 3 (A) and (B) in which the signal terminal 20 and the support terminal 30 are respectively displayed by a two-dot chain line, and the terminal groove into which the signal terminal 20 is inserted and the terminal into which the support terminal 30 is inserted are inserted. The grooves are also formed in the same shape. Therefore, any one of the signal terminal 20 and the support terminal 30 can be selectively inserted regardless of which terminal groove 18 is provided. In the terminal groove 18, an island-shaped fixing portion 19 is provided between the upper wall 15 and the lower wall 13 in the vertical direction of the rear portion of the front wall 14, and the terminal groove 18 is divided into the upper side of the fixing portion 19. The upper region 18A, the front region 18B located on the lower side, the connection region 18C that connects the two regions on the front side portion, and the open rear region 18D that is formed in the front-rear direction on the rear portion of the lower wall 13 corresponding to the opening portion 16 (For the range of each region 18A to D, refer to FIG. 3(A)). The upper region 18A, the front region 18B, the connection region 18C, and the open rear region 18D communicate with each other to form one terminal groove 18. The groove bottom of the terminal groove 18 in the open rear region 18D is located below the groove bottom of the front region 18B. Thereby, the contact portions 22 and 32 of the terminals 20 and 30 to be described later are allowed to be displaced downward, and when the terminal is soldered, even if the flux escaping, a gap for preventing the flux from reaching the contact portion can be formed.

The terminal groove 18 is provided with all of the upper region 18A, the front region 18B, the connection region 18C, and the open rear region 18D, that is, the entire region of the terminal groove 18 is used for the support terminal 30, and only the front region 18B and the open rear portion are provided. The area 18D is used for the signal terminal 20. turn off The terminal groove 18 will be described again after the description of the signal terminal 20 and the support terminal 30.

The signal terminal 20 which is formed by maintaining the flat surface of the metal plate is formed as an arm member extending forward and backward as shown in FIG. 4(A), and has a connecting portion 21 at the front end portion and a contact portion 22 at the rear end portion. And there is a protrusion 23 as a fixed portion in the intermediate portion. The connecting portion 21 is formed to be bent downward toward the outside of the casing 11. The lower edge of the connecting portion 21 is located below the bottom surface of the casing 11, and is disposed on a circuit board (not shown). At this time, the corresponding portion of the circuit board is soldered. The signal terminal 20 extends rearward to the intermediate portion of the casing 11, and the contact portion 22 projects upward at the rear end thereof. The protrusion 23 as the fixed portion is formed at two positions on the upper edge of the intermediate portion. The signal terminal 20 thus formed is pressed between the island-shaped fixing portion 19 of the terminal groove 18 of the casing 11 and the lower wall 13. The projection 23 bites into the lower edge of the fixing portion 19 to determine a fixed position. The rear portion of the signal terminal 20 protrudes rearward from the front wall 14 of the casing 11, and the lower edge forms a gap between the bottom edge and the groove bottom of the terminal groove 18, and is elastically deflectable downward. That is, when the contact portion 22 receives a downward force from the flat conductor F, the contact portion 22 can be elastically displaced downward by the amount corresponding to the gap. The signal terminal 20 is inserted into the terminal groove 18 from the front side opening of the terminal groove 18, and the rear portion including the contact portion 22 is accommodated in the open rear region 18D of the terminal groove 18 in the terminal groove 18, and is included as being fixed. The front portion of the protrusion 23 is housed in the front region 18B (see FIG. 3(A)).

Further, as shown in FIG. 4(B), the support terminal 30 is produced in a state in which the flat plate surface of the metal plate is maintained in the same manner as the signal terminal 20. However, the support terminal 30 is formed in the same shape as the arm portion 30A having the same shape as the signal terminal 20. Further, a support arm portion 35 that is coupled to the connecting portion 34 at the distal end of the arm portion 30A is provided. The signal terminal 20 and the support terminal 30 can be selectively inserted into the terminal groove 18 as described above, but the signal terminal 20 and the arm portion 30A of the support terminal 30 do not necessarily have to have the same shape, and can be selectively inserted into the foregoing. It can be inside the terminal groove 18.

The arm portion 30A has the same shape as the signal terminal 20 as described above, and has a connection portion 31 at the distal end, a contact portion 32 at the rear end, and a projection 33 as a fixed portion at the intermediate portion. Since the arm portion 30A is elastically deflectable at the rear portion, and the contact portion 32 is elastically displaceable, it is the same as the case of the signal terminal 20.

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

The support arm portion 35 extends rearward from the upper end of the coupling portion 34. The support arm portion 35 extends between the fixed portion 19 and the upper wall 15 and extends rearward, and a concave curved support portion 36 is formed at a lower edge of the rear end. The support arm portion 35 is formed to have a wide width (a vertical dimension in the drawing) and a high rigidity as compared with the arm portion 30A located below. The support terminal 30 is required to have the support portion 36, and the aforementioned connection portion 31 is not necessarily required.

The support terminal 30 is inserted from the front toward the rear to the foregoing In the terminal groove 18, the arm portion 30A is press-fitted between the island-shaped fixing portion 19 and the lower wall 13 in the same manner as the signal terminal 20, and the support arm portion 35 is disposed between the fixing portion 19 and the upper wall 15. In the support terminal 30, the arm portion 30A includes the open rear region 18D in which the rear portion of the contact portion 32 is accommodated in the terminal groove 18, and the front portion of the protrusion 33 as the fixed portion is accommodated in the front region 18B. Terminals 20 are identical.

Next, the groove width of the terminal groove 18, particularly the front region 18B, as shown in Fig. 3(A) will be described again.

As shown in FIG. 3(A), the terminal groove 18 has a wide area in which the groove width is wider than the groove width of the signal terminal 20 and the support terminal 30 in the front region 18B. In addition to the wide width region, the terminal groove 18 is formed such that the signal terminal 20 and the support terminal 30 are in contact with the board surface in such a manner that the board surface can be inserted or supported, or a gap is formed between the board surface and the board surface. The groove width forms a narrow groove portion narrower than the wide width region. The wide-width region may be formed in at least a part of the front region.

As shown in FIGS. 3(A) and (B), the wide-width region is formed in a portion of the front portion of the front region 18B of the terminal groove 18 and located at the upper portion, and has a tapered region 18B-1 and a parallel region 18B-2. In the front-rear direction, the parallel region 18B-2 is formed in a portion further than the island-shaped fixing portion 19, and the tapered region 18B-1 is formed in the front-rear direction of the fixing portion 19. As shown in FIG. 5(B), the parallel region 18B-2 has a groove width sufficiently larger than that of the signal terminal 20 and the support terminal 30, and an air layer A is formed between the parallel plate and the plate surface of the terminal.

The tapered region 18B-1 is formed such that the groove width (the groove width of the narrow groove portion) in the open rear region 18D at the rear faces the groove width in the wide region, and the groove width is gradually enlarged, and travels to a wide width. Region 18B-2 (see also Figure 2). There is also a function of smoothly inserting the tapered region 18B-1 toward the terminal groove 18 of the terminal, and the electrical characteristics are gradually changed in the tapered region 18B-1. Fig. 5(A) is a cross-sectional view taken along line VA-VA in Fig. 3 in the open rear region 18D rearward of the tapered region 18B-1 in the front-rear direction, and Fig. 5(B) is in the aforementioned parallel region 18B- Sectional view of VB-VB in 2.

As can be seen from Fig. 5(B), the air layer A is formed by the parallel region 18B-2 of the wide-width region on both side plate faces of the signal terminal 20 and the arm portion 30A of the support terminal 30.

The improvement of the impedance of the terminal formed by the air layer A is strongly required for the signal terminal 20 for high-speed signal transmission compared to the support terminal 30. As shown in FIG. 4(A), the signal terminal 20 is provided with a fixed portion that is fixedly held by the island-shaped fixing portion 19 of the casing 11 in a relationship in which the contact portion 22 provided at the rear end is elastically displaced. The position of the projection 23 is formed to be thinner (the height dimension is smaller), in other words, the front portion of the projection 23 is formed to be thicker (larger in height) than the position where the projection 23 is provided. That is, the board surface area of the front portion of the signal terminal 20 is formed to be wider than the rear portion. In the present embodiment, the front region 18B in which the air layer A is formed is located in the front portion of the signal terminal 20. Therefore, the air layer can be formed in a wide range to the aforementioned front portion, and the portion can be effectively improved. impedance.

Further, the air layer A is located in the vicinity of the island-shaped fixing portion 19 provided in the casing 11, and the fixing portion 19 is continuous with respect to all the terminal grooves 18 in Fig. 3 in a direction perpendicular to the plane of the paper, so that even if the air is formed Layer A does not reduce the strength of the casing 11. Further, in the present embodiment, as shown in FIG. 5(B), the signal terminal 20 and the support terminal 30 are formed with the lower edge of the air layer A, and the lower edge of the narrow groove portion of the terminal groove 18 is slightly grooved. Since the area is limited or supported by the plate surface, the position in the plate thickness direction is constant, and as a result, the impedance is also stabilized.

In the present embodiment, as shown in FIG. 5(B), the air layer A is formed on the both side faces of the terminal of the signal terminal 20 and the arm portion 30A of the support terminal 30. However, the present invention is not limited to the present invention. Therefore, as shown in FIG. 6 and FIG. 7 , at least the signal terminal 20 may be formed sufficiently, and may be on one of the board surface sides, or may be adjacent to the signal terminal 20 as shown in FIG. 7 . The air layers A are in communication with each other.

In the present embodiment, the signal terminal 20 and the support terminal 30 are arranged such that one support terminal 30 is located adjacent to the two signal terminals 20, and the support terminal 30 is used as the ground terminal for the signal terminal 20.

The movable member 50 is made of the same electrical insulating material as that of the casing 11, and has a width of the entire terminal arrangement range as shown in FIG. 1, and is disposed in the opening portion 16 of the casing 11. The movable member 50 is movably supported between the open position and the closed position as described above, but a groove portion 51 is formed in a lower portion as shown in FIGS. 4(A) and 4(B). The groove portion 51 is formed in the terminal arrangement direction and is in the same manner as the above The terminal 20 is connected to the front and rear positions of the terminal groove 18 for supporting the terminal 30, and a shaft portion 52 for connecting the inner surfaces of the opposing grooves of the groove portion 51 is provided at the lower end position. The shaft portion 52 has a substantially circular peripheral surface and is rotatably supported in a support portion 36 formed in a concavely curved shape on the support arm portion 35 of the support terminal 30. However, since the signal terminal 20 does not have the support arm portion as described above, the shaft portion 52 located at a position corresponding to the signal terminal 20 is not supported by any member. The movable member 50 is supported at both ends in the width direction (terminal arrangement direction), and is rotatably supported by a housing by a shaft portion (not shown). In the movable member 50 shown in FIGS. 4(A) and 4(B), the operation portion 53 is formed on the upper portion where the groove portion 51 is not formed, and protrudes upward from the upper wall 15 of the casing 11. The movable member 50 is rotatably moved between the open position and the closed position by the operation portion 53 withstanding the operating force.

The movable member 50 is formed as a pressurizing portion that presses the flat conductor F at the closed position from the lower end surface of FIGS. 4(A) and (B) to the rear surface (left side) of the operation portion 53.

The connector 1 of the present embodiment is used after being mounted on a circuit board (not shown). The signal terminal 20 and the support terminal 30 are connected to the connection portion 21 of the terminals and the connection portion 31 to the corresponding circuit portion of the circuit board. At the same time, the fixing fastener 40 is also welded to the circuit substrate with its fixing portion. Thus, the connector 1 is connected and fixed to the circuit substrate.

When it is used, the movable member 50 is brought to an open position as shown in Figs. 4(A) and (B) in advance, and the opening portion 16 of the casing 11 is largely opened rearward. Will be the flat conductor F shown in Figure 1. The front end portion is inserted into the opening portion 16. The flat conductor F of FIG. 1 is in the contact portion 22 of the signal terminal 20, the contact portion 32 of the support terminal 30, and the open position in a state where the movable member 50 is in the open position shown in FIGS. 4(A) and 4(B). The movable members 50 are inserted to the front, and the front end edge of the flat conductor F abuts against the rear surface of the front wall 14 of the casing 11 to be brought to a predetermined insertion position. At this predetermined insertion position, the connecting conductor portion exposed to the lower surface of the flat 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.

Then, an operating force is applied to the operation portion 53 of the movable member 50, and the movable member 50 is rotated about the shaft portion 52 in the counterclockwise direction in FIGS. 4(A) and 4(B), and is moved toward the closed position at the horizontal position. In the closed position, the movable member 50 presses the flat conductor F downward with its pressing portion. The flat 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 be elastically displaced. As described above, the contact portion 22 and the contact portion 32 electrically connect the signal terminal 20 and the support terminal 30 to the corresponding connection conductor portion of the flat conductor F by the contact pressure (contact force). The support terminal 30 functions as a ground terminal when the corresponding connection conductor portion of the flat conductor F and the corresponding circuit portion of the circuit board are grounded circuits. The arrangement of these terminals 20, 30 can be freely set in various ways. In the case where the signal terminal 20 is indicated by S, the ground terminal of the support terminal 30 is indicated by G, the low-speed signal terminal is indicated by L, and the power supply terminal is indicated by D, the differential signal arrangement of ... GSSGSSG..., ... GSSGLGDDD ...the composite arrangement, and ...GSSSSSGSSSSSG...the grounding terminal is less The arrangement and so on.

In the present invention, the signal terminal 20 is formed as a linear arm member. Therefore, the transmission path is formed between the contact portion 22 and the connection portion 21 at the shortest linear distance, and the portion having no bypass path is provided. Therefore, the influence of the lead wire can be reduced, and high-speed signal transmission is ideally performed, and the support terminal is provided. 30 can be used as a grounding terminal. Therefore, the supporting terminal 30 is located between the signal terminals 20 to provide a shielding effect.

Further, in the present embodiment, since the arm portion 30A of the support terminal 30 has the same shape as the signal terminal 20, and the terminal groove 18 has a common shape with respect to the two terminals 20 and 30, the two terminals can be selectively inserted into any one of the terminal grooves. There is freedom in the arrangement of the terminals. Further, when the signal terminal 20 and the arm portion of the support terminal (ground terminal) 30 have the same shape, all contact pressures at the contact portion become the same, and a stable contact force can be obtained.

Further, in the present 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 required. In the case of being used as a signal terminal, since the support arm portion 35 exists between the contact portion 32 and the connection portion 31 via the connection portion 34, it is preferable to use it as a low-speed signal that does not affect the transmission speed.

11‧‧‧Shell

12‧‧‧ side wall

13‧‧‧The lower wall

17‧‧‧ fastener groove

18‧‧‧ terminal trench

18B-1‧‧‧Cone area

18B-2‧‧‧ parallel area

20‧‧‧ Signal Terminal

30‧‧‧Support terminals

40‧‧‧Fixed fasteners

Claims (2)

An electrical connector for a flat conductor, wherein a signal terminal and a support terminal are formed by maintaining a flat plate surface of a metal plate, inserted into a terminal groove of the casing, and arranged in a direction perpendicular to the plate surface, the signal The terminal has a contact portion for contacting a flat conductor inserted forward toward the receiving portion of the casing, wherein the signal terminal is an arm member and extends in the front-rear direction, and a contact portion is formed at a different position. And a connecting portion for soldering to the circuit substrate outside the casing, wherein the support terminal is formed with an arm portion extending in the front-rear direction and having a contact portion, and the flat-shaped conductor is located on the arm in addition to the arm portion a support arm portion at a position opposite to the portion and a connection portion connecting the support arm portion to the arm portion, and a support for movably supporting a movable member for pressing the flat conductor is formed at a distal end portion of the support arm portion The signal terminal is a portion between the contact portion and the connection portion, and the support terminal is a portion between the contact portion and the connection portion, and has a press-fitted to the terminal groove. In the fixed portion of the fixing portion, the terminal groove is formed in a shape that can be selectively inserted into any one of the signal terminal and the supporting terminal, and is formed between the upper wall and the lower wall of the housing. An island-shaped fixing portion is provided, and the fixed portion of the signal terminal or the supporting terminal is fixed between the fixing portion and the lower wall by a pressing force acting in the vertical direction, and at least a part of the terminal groove is in the front-rear direction. In the front region formed by the island-shaped fixing portion and the front portion of the fixing portion, the inner wall surface of the groove is formed at a right angle to the plate surface. The distance between each other is larger than the width of the guide groove having the same width in the same direction as the guide insertion of the terminal. The electrical connector for a flat conductor according to the first aspect of the invention, wherein the terminal groove is in a range of a wide area in the front-rear direction, and a terminal groove corresponding to at least one of an upper end edge and a lower end edge of the terminal The upper end groove surface or the lower end groove surface may have a narrow groove portion which is narrower than the groove width in the wide width region.