TWI646737B - Electrical connector for flat conductor - Google Patents

Abstract

An object of the present invention is to provide an electrical connector for a flat conductor that can be introduced without damaging the flat conductor.

The means for solving the problem is that the housing (30) is a rear part of the peripheral wall formed by the upper wall (35), the lower wall (36) and both side walls (37), and has an introduction wall portion (39). The introduction wall portion (39) is formed with a receiving portion (38). The receiving portion (38) is a connection portion (F1) for receiving the flat conductor (F) forward, and a contact portion of a terminal that contacts the connection portion (F1) is It is located in the receiving part, and is introduced into the wall part (39). The rear end of the upper wall (35) is in the width direction of the flat conductor, and is located more forward than the rear end of the lower wall (36). The upper surface has an exposed surface (43) that is exposed upward and rearward than the rear end of the upper wall (35). The exposed surface (43) is outside the arrangement area of the connecting portion (13A-1) and is located at the upper edge of the connecting portion. In the upper position, the leading edge of the flat conductor can be brought into contact with the exposed surface (43) during the process of introducing the flat conductor toward the receiving portion (38).

Description

Electrical connector for flat conductor

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

An electrical connector for flat conductors is widely used as a connector mounted on a circuit board. The electrical connector has a plurality of terminals and a housing, and the plurality of terminals are provided in the length direction of a flat conductor such as an FPC. At the front-end connection portion, the contact portion that connects and the connection portion that connects the circuit board. The housing is arranged to keep the terminals aligned in the width direction of the connector. The housing is on the upper wall, the lower wall, and both sides. The rear portion of the peripheral wall formed by the side wall has an introduction wall portion having a receiving portion that receives the connection portion of the flat conductor toward the front, and the contact portion of the terminal in contact with the connection portion is located in the reception portion.

The electrical connector for a flat conductor is a width direction which is perpendicular to the longitudinal direction of the flat conductor, and a plurality of connection portions are arranged at the leading edge of the flat conductor at a fine pitch. The connection portions are aligned in the width direction. Corresponds to the contact portions of the terminals of the connector and makes contact connection. Therefore, in order to ensure that each connection portion is in contact with the contact portion of the corresponding terminal, when the flat conductor is introduced into the receiving portion, the flat conductor must be made. It is in the correct position in this width direction.

In Patent Document 1 in which such a connector is disclosed, a pyramid surface portion is provided at an entrance portion of a fitting port where an FPC or the like that is a flat conductor is positioned and accommodated in the width direction, and when the flat conductor is started toward the fitting port At the time of introduction, even if it is slightly shifted in the width direction, the front end of the side edge of the flat conductor is guided along the pyramid surface to the regular width direction position, and enters the fitting mouth, and enters the fitting mouth. At the regular position, the aforementioned connection portion is in contact with and connected to the contact portion.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2004-178958

In Patent Document 1, the terminal system alternately has two types of terminals mounted on the housing in various directions from the front and the rear. The terminals are formed on the rear side of the terminals mounted from the front and are used for soldering the circuit board. The portion extends in the front-rear direction to the rear end position of the aforementioned fitting mouth, that is, the inlet end position. The connecting portion protrudes from the housing portion not only at the rear edge but also at the upper edge. Even if the flat conductor is introduced into the fitting opening from one of a horizontal direction and an oblique direction, the front end of the flat conductor is connected to the connecting portion. The probability of abutment is high.

Flat conductors are made of resin and the terminals are made of metal It is extremely thin, so when the flat conductor comes into contact with the connection part of the terminal, it is easy to be damaged by the connection part of this terminal. The base material of the flat conductor is made of resin, but there is a metal connection part as a circuit wire at the tip. When the flat conductor is damaged, the tip of the flat conductor is cut to produce resin powder and metal powder, which will also become contact. Failure, short circuit, etc.

The present invention has been developed in view of such circumstances, and an object thereof is to provide an electrical connector for a flat type conductor, which prevents the flat type conductor from contacting the terminal when the flat type conductor is introduced. Damage and can be imported to a predetermined import position.

The electrical connector for a flat conductor according to the present invention includes a plurality of terminals and a housing, and the plurality of terminals are provided with a contact portion for contacting a connection portion provided on the front end side of a flat conductor such as an FPC in the longitudinal direction. And a connecting part for connecting the circuit board, the housing is arranged to keep the terminals arranged in the width direction of the connector, and the housing is the rear part of the peripheral wall formed by the upper wall, the lower wall, and both side walls, and has an introduction wall The introduction wall portion has a receiving portion that receives the connection portion of the flat conductor toward the front, and the contact portion of the terminal that is in contact with the connection portion is located in the receiving portion.

In the electrical connector for a flat conductor, in the present invention, in the introduction wall portion, the rear end of the upper wall is at least in the width direction range of the flat conductor, and is located more forward than the rear end of the lower wall, and the upper surface of the lower wall. Has an exposed surface which is exposed upward from the rear end of the upper wall, and the exposed surface is Outside the arrangement area of the connection portion in the width direction of the connector, the position is higher than the upper edge of the connection portion. During the process of introducing the flat conductor toward the receiving portion, the front edge of the flat conductor can abut against the foregoing. Exposed face.

According to the present invention having such a structure, the rear end of the upper wall forming the introduction wall portion is located further forward than the rear end of the lower wall, and an exposed surface is formed on the lower wall. Therefore, the receiving portion is formed to face upward at the rear end side. Opening makes it easy to conduct oblique introduction from above and visually confirm the position of the flat conductor during introduction.

Moreover, when the flat conductor is introduced, especially when it is introduced obliquely, even if the connection portion of the terminal is arranged on the receiving portion side, the exposed surface is positioned higher than the receiving portion. Therefore, the leading edge of the flat conductor is It can be reliably guided by the exposed surface without abutting on the connection portion. In addition, after the connector is mounted on the circuit board, the soldering state between the connection portion and the connector is easily visually confirmed from above.

In the present invention, the connection portion of the terminal in which the plurality of terminals is at least a part thereof is located within the range of the introduction wall portion in the front-rear direction. In the present invention, the lead-in wall portion is provided on at least both end sides in the width direction of the connector, and below the rear edge of the upper wall, there is a pyramidal surface that guides and guides the flat conductor downward into the interior of the receiving portion, and the pyramidal surface It is better to introduce the upper guide surface.

Thereby, when the flat-type conductor is introduced obliquely, the flat-type conductor can be smoothly introduced toward the receiving portion at the upper guide surface of the upper wall.

In the present invention, the introduction wall portion is provided on the inner surface of the rear edge of the side wall, and the side edge of the flat conductor is provided to guide inward in the width direction of the connector. The pyramidal surface to be guided in is preferably used as an introduction side guide surface.

Thereby, when the connection portion of the flat conductor is introduced toward the receiving portion, the flat conductor can be guided in the width direction of the connector with the introduction side guide surface, and the connection portion can be brought to a regular position in the same direction.

In the present invention, in the introduction wall portion, the rear end of the lower wall has a recessed portion that is recessed forward in the arrangement area of the connection portion of the terminal in the connector width direction, and the connection portion is exposed and protruded rearward in the recessed portion. The terminal connection portion is exposed, making soldering easy.

As described above, since the rear end of the upper wall of the introduction wall portion of the housing is positioned forward from the rear end of the lower wall and is opened, the introduction of the flat conductor is particularly oblique. In the case of introduction, the introduction operation is easy, and the introduction position and posture can be determined while visually checking. In addition, the exposed surface is located outside the terminal arrangement area and above the upper edge of the terminal connection portion. The leading end edge of the flat conductor comes into contact with the exposed portion of the lower wall and is guided. When the connecting portion of the flat conductor is introduced into the receiving portion, the leading edge of the flat conductor does not come into contact with the terminal and does not become contacted. It is damaged, and it is possible to prevent contact failure caused by resin powder caused by cutting at the front end of the damaged flat conductor, short circuit caused by metal powder, and the like.

11‧‧‧ (first) terminal

12A-1‧‧‧Contact

13A-1‧‧‧Connection section

16‧‧‧ (second) terminal

17A-1‧‧‧Contact

30‧‧‧shell

35‧‧‧ Upper wall

36‧‧‧ lower wall

37‧‧‧ sidewall

38‧‧‧Receiving Department

39‧‧‧Introduction to the wall

44‧‧‧ Depression

45‧‧‧Introduction to the upper guide surface

46‧‧‧Introduction side guide surface

FIG. 1 is a perspective view showing a flat-type conductor connected to the flat-type conductor electrical connector according to an embodiment of the present invention, in which (A) shows before the flat-type conductor is connected, and (B) shows after the connection.

FIG. 2 shows a part of the connector of FIG. 1, that is, the vicinity of the entrance of the receiving section, where (A) is a perspective view, and (B) is a cross-sectional view taken along the line IIB-IIB of FIG. 1 (A).

FIG. 3 is a cross-sectional view of the position of the first terminal in the connector of FIG. 1, showing a state where the movable member is in the open position and the flat conductors are introduced according to the order of (A), (B), and (C). .

Fig. 4 is a sectional view of the connector of Fig. 1 with the movable member in a closed position, where (A) is the position of the first terminal, (B) is the position of the second terminal, and (C) is the position of the fixed fastener Sectional view.

FIG. 5 is a plan view of the connector showing a state where the flat conductor is not completely introduced into the connector. (A) is a case of the flat conductor shown in FIG. 1 and (B) is a case of the flat conductor of another form.

FIG. 6 is a view showing another part of the connector of FIG. 1, that is, the vicinity of the entrance of the receiving section, viewed from the same direction as FIG. 2, in which (A) is a perspective view and (B) is a front view.

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

FIG. 1 shows an electrical connector (hereinafter referred to as a connector) 1 for a flat conductor according to an embodiment of the present invention, and a flat connector connected thereto An oblique view of the type conductor F, in which (A) shows the flat type conductor before connecting to the connector 1, and (B) shows after the connection.

The flat conductor F has a connection portion F1 which is introduced on the upper surface of the front end portion of the flat conductor F toward the connector 1 and is connected to the connector terminal. In this embodiment, the circuit wire F2 extending in the lengthwise direction of the flat conductor (only the front end portion of the connection portion F1 is formed in the figure, and the illustration of the rear portion is omitted) is the number of the aforementioned terminals arranged. The line F2 is provided with a circuit line F2A and a circuit line F2B. The two circuit lines F2A and F2B are alternately arranged. The circuit line F2A has a gasket F2A-1, which is close to the front edge of the flat conductor F and is used for terminal contact. There is a gasket F2B-1 located behind the gasket F2A-1.

The flat conductor F is formed on a side edge portion of the connection portion F1 with a locking recess F3 for locking the fixing fastener of the connector, and an edge of the locking recess F3 is provided for fixing the fixing Reinforcing washer F4 for increasing the strength when the claws of the fastener are slid into contact with each other to prevent the locking.

The connector 1 to which the flat conductor F is connected includes a connector body 2 that holds the terminal 10 and the fixing fastener 20 in a housing 30 made of an electrically insulating material; and a front edge of the connector body 2. A movable member 3 made of an electrically insulating material that is movably supported on the side.

The terminals 10 held by the housing 30 are two types of terminals, the first terminal 11 inserted from the rear to the front of the housing 30 and the second terminal 16 inserted from the front to the rear. Both are in the connector width direction ( The left and right directions in FIG. 1 are arranged alternately.

Both the first terminal 11 and the second terminal 16 are produced by blanking the flat surface of the metal plate and are formed into a horizontal H shape. The first terminal 11 is as shown in FIGS. 3 (A) to (C). As shown in FIG. 4 (A), it has an upper arm portion 12, a lower arm portion 13, and a connecting portion 14 that connects the two at the center position in the longitudinal direction. As shown in FIG. 4 (B), the second terminal 16 has The upper arm part 17, the lower arm part 18, and the connection part 19.

The upper arm portion 12 of the first terminal 11 includes a contact arm portion 12A extending rearward from the position of the connection portion 14 to the vicinity of the rear end of the housing 30 (the left end in FIG. 3 (A)); and the position from the connection portion 14 The flexible arm portion 12B extends forward to an intermediate position between the connecting portion 14 and the front end of the case 30. At the rear end of the contact arm portion 12A, a contact portion 12A-1 is formed in a downward triangular protrusion shape and in contact with the pad F2B-1 of the circuit wire F2B of the flat conductor F. The lower edge of the front end is formed with a concavely curved pressure receiving portion 12B-1 for engaging a cam portion of a movable member described later.

The lower arm portion 13 of the first terminal 11 includes a connecting arm portion 13A extending rearward from the position of the connecting portion 14 to a position protruding rearward from the housing 30, and extending forward from the position of the connecting portion 14 to the upper arm. The cam supporting arm portion 13B is located at a position slightly forward of the tip of the flexible arm portion 12B of the portion 12. The connection arm portion 13A includes a connection portion 13A-1 located at the rear end portion outside the housing 30, and a protruding support projection portion 13A-2 located at a position opposite to the contact portion 12A-1 of the upper arm portion 12. . The lower edge of the connection portion 13A-1 is located at substantially the same height as the bottom surface of the housing 30. When the connector 1 is disposed on a circuit board, The corresponding circuit is in surface contact. The connection portion 13A-1 is soldered to a corresponding circuit portion. The support protrusion 13A-2 supports the lower surface of the flat conductor F. However, when the flat conductor F also has a circuit line portion on the lower side, the support protrusion 13A-2 can be used as a secondary contact with a corresponding gasket of the circuit line portion. Ministry functions.

The cam support arm portion 13B of the lower arm portion 13 has a straight upper edge formed at a front portion thereof, and rotatably supports a cam portion of a first terminal provided in the movable member 3 described later. The cam support arm portion 13B is located at an upper edge of a position close to the connecting portion 14 and has a locking projection 13B-3 that is engaged with the housing 30 to prevent the first terminal 11 from falling off.

The second terminal 16 is as described above, and the first terminal 11 similarly maintains the flat surface of the metal plate. As shown in FIG. 4 (B), the second terminal 16 has an upper arm portion 17, a lower arm portion 18, and a connecting portion 19 and is slightly horizontal. H-shaped, but the difference from the first terminal 11 is that the second terminal 16 is inserted into the housing 30 from the front to the rear. Therefore, the connecting portion 18B-1 of the front end of the cam support arm portion 18B provided on the lower arm portion 18 is located The front portion of the housing 30, the pressure receiving portion 17B-1 formed in the flexible arm portion 17B of the upper arm portion 17, forms a deep concave bend, the contact arm portion 17A of the upper arm portion 17 having the contact portion 17A-1, and the support The connection arm portion 18A of the lower arm portion 18 of the protruding portion 18A-2 is shorter than the contact arm portion 12A and the contact arm portion 13A of the first terminal 11 and is inserted into the housing 30 from the rear to the front. The locking protrusions 18A-3 that have been bitten into the case 30 are located at different points such as a position further behind the connecting portion 19.

Moreover, the fixed fasteners 20 are held by the housing 30 on both outer sides of the arrangement range of the first terminals 11 and the second terminals 16 that are alternately arranged. Such as As shown in FIG. 4 (C), the fixed fastener 20 is formed in a substantially horizontal H shape while maintaining the flat surface of the metal plate in the same manner as the first terminal 11 and the second terminal 16, and the locking arm portion 21A of the upper arm portion 21 The contact arm portion 17A of the upper arm portion 17 of the second terminal 16 is long, and the protruding locking portion 21A-1 provided at the rear end of the locking arm portion 21A is a claw that is larger than the contact portion 17A-1 of the second terminal 16 The support arm portion 22A of the lower arm portion 22 is substantially the same length as the aforementioned latching arm portion 21A and is longer than the connecting arm portion 18A of the second terminal 16 and has no protrusion at the rear end of the support arm portion 22A. These points are different from the second terminal 16, and the rest are the same as the second terminal 16, and a figure of “4” is added to the symbol of the second terminal 16, and the description is omitted.

The housing 30 holding the first terminal 11, the second terminal 16, and the fixed fastener 20 in this manner is shown in FIG. 1, FIG. 3, and FIG. 4, and is used for the first terminal 11, the second terminal 16, and the fixed fastener 20. The first terminal receiving groove 31, the second terminal receiving groove 32, and the fixed fastener receiving groove 33 which are inserted and assembled are formed to penetrate in the front-rear direction.

The housing 30 forms a peripheral wall formed by the upper wall 35, the lower wall 36, and the side wall 37. The housing 30 is located between the connection portion 14 of the first terminal 11, the connection portion 19 of the second terminal 16, and the connection portion 23 of the fixed fastener. Positioned further to the rear, in the terminal arrangement direction (directions perpendicular to the paper surface in FIGS. 3 and 4), the first terminal receiving groove 31, the second terminal receiving groove 32, and the fixed fastener housing are formed to extend. The groove 33 communicates and opens rearward to form a space that can receive the connection portion F1 of the flat conductor F from the rear, and this space serves as the receiving portion 38. In more detail, the rear part of the peripheral wall formed by the upper wall 35, the lower wall 36, and the side wall 37 of the housing 30 (more A receiving portion 38 is formed inside the aforementioned connecting portions 14, 19, and 23 at the rear portion), and a wall surrounding the receiving portion 38 is formed as the introduction wall portion 39.

As shown in FIGS. 3 (A) to (C) and FIG. 4 (A), the housing 30 is formed in the first terminal receiving groove 31 at a position further forward than the connecting portion 14 of the first terminal 11. The locking protrusions 13B-3 of the one terminal 11 bite into and lock the locking wall 40, the second terminal receiving groove 32 and the fixing fastener receiving groove 33, as shown in Figs. 4 (B) and 4 (C). The connecting portion 19 of the second terminal 16 and the connecting portion 23 of the fixed fastener 20 are further rearwardly provided with a locking wall 41 into which the locking protrusion 18A-3 is engaged, and a locking wall into which the locking protrusion 22A-3 is engaged. 42, thereby preventing the first terminal 11, the second terminal 16, and the fixing fastener 20 from falling off, respectively.

In order to form the aforementioned introduction wall portion 39, the upper wall 35 and the lower wall 36 are positioned in pairs. The rear end of the upper wall 35 is located more forward than the rear end of the lower wall 36. In other words, the rear end of the lower wall 36 is relatively The rear end of the upper wall 35 projects further rearward, and an exposed surface 43 that opens upward is formed on the upper part of the protruding portion of the lower wall 36 that projects rearward. In this embodiment, in the terminal arrangement range in the width direction of the connector, the rear end of the lower wall 36 is recessed forward to the rear end position of the upper wall 35, and the exposed surface 43 forms the terminal arrangement range on both sides. That is, the lower wall 36 is formed with a recessed portion 44 in the aforementioned terminal arrangement range. As a result, the connection portion 13A-1 of the first terminal 11 extending to the rear end of the casing 30 of the lower wall 36 is located in the aforementioned recessed portion 44 and exposed. Since the connection portion 13A-1 is exposed, it is possible to confirm when the first terminal 11 is pressed into the housing, to confirm soldering when the connection portion 13A-1 is soldered, and to prevent it from following the case when soldering. Decent help Solder lifts up. As described above, since the aforementioned recessed portion 44 is formed in the lower wall 36, the exposed surface 43 is positioned on both sides of the connector in the width direction of the recessed portion 44 as shown in FIG. 1 (A), in other words, it is positioned on the first terminal 11 The connecting portions 13A-1 are arranged on both outer sides of the arrangement range. In this embodiment, the exposed surface 43 is divided into two regions via the fixing fastener receiving groove 33 for receiving the fixing fastener 20, and has: in the connector width direction, it is located more than the fixing fastener receiving groove. The outer exposed surface 43A on the outer side of 33 and the inner exposed surface 43B on the inner side of the fixed fastener receiving groove 33. The outer exposed surface 43A is located slightly higher than the inner exposed surface 43B. As shown in FIG. 2 (B), although there are some high and low level differences between the outer exposed surface 43A and the inner exposed surface 43B, the range of the exposed surface 43 in the front-rear direction is both located in the recessed portion 44. The upper edge of the connecting portion 13A-1 of the first terminal 11 is higher than the upper exposed edge of the connecting portion 13A-1. The outer exposed surface 43A is higher by a distance of δ1, and the inner exposed surface 43B is higher by δ2 (<δ1 )distance.

The outer exposed surface 43A is used when the flat conductor F is introduced into the receiving portion 38, especially when it is introduced obliquely, so that the leading edge of the flat conductor F abuts and guides the flat conductor F, and prevents the flat conductor F from The front end abuts or collides with the upper edge of the connection portion 13A-1 of the first terminal 11.

The inner exposed surface 43B, which is slightly lower than the outer exposed surface 43A, has the following function, that is, when the flat conductor F has been introduced and the movable member 3 is turned toward the closed position, the contact portion 12A-1 of the first terminal 11 and When the contact portion 17A-1 of the second terminal 16 is pressed downward, it is allowed The flat conductor F is flexed and supports the lower surface of the flat conductor F.

Since the exposed surface 43 overlaps with the connection portion 13A-1 in the front-rear direction, the exposed surface 43 can be provided without increasing the size of the connector in the front-rear direction.

The upper wall 35 opposite to the lower wall 36 is as described above, and its rear end is located more forward than the rear end of the lower wall 36, as shown in Figs. 2 (A) and (B). In this way, it is easy to guide the flat-shaped conductor F toward the receiving portion 38 under the rear edge of the upper wall 35 and guide it to the upper guide surface 45. The introduction upper guide surface 45 is interrupted and does not exist at the positions of the first terminal receiving groove 31 and the second terminal receiving groove 32, but forms a side wall 37 across the full width area of the receiving portion 38, that is, on both sides between.

In the side wall 37, an introduction side guide for guiding the flat conductor F in a regular position inward in the connector width direction is formed on the inner side surface in the connector width direction in a rearward range from the rear end of the upper wall 35.引 面 46。 46 surface. The introduction-side guide surface 46 has an introduction-side lateral guide surface 46A adjacent to the outer edge of the outer exposed surface 43A as shown in FIGS. 2 (A) and 2 (B); and from the introduction-side portion The leading edge of the lateral guide surface 46A stands upright and is introduced into the side longitudinal guide surface 46B. That is, the introduction side lateral guide surface 46A extends from the rear end position of the lower wall 36 to the rear end of the upper wall 35, and the introduction side vertical guide surface 46B is formed at the rear end of the upper wall 35. Therefore, when the flat-type conductor F is introduced with a deviation in the width direction, it is guided toward the regular position with the introduction-side lateral guide surface 46A, and then guided by the introduction-side vertical guide surface 46B.

In this manner, as shown in FIGS. 1, 3, and 4, the housing 30 forming the introduction wall portion 39 at the rear portion is opened forward and upward across the terminals in order to support the movable member 3 at the front portion and allow the rotation of the movable member 3. A notch portion 47 is formed in the arrangement range. On the upper wall 35, a widthwise edge portion 47A of the notch portion 47 extends rearwardly to form a flexible arm portion 12B for accommodating the first terminal 11 and a second terminal 16 respectively. The groove notch portions 48A and 48B of the flexible arm portion 17B and the groove notch portion 48C for receiving the upper arm portion 21 of the fixing fastener 20 are formed to extend rearwardly longer than the groove notch portions 48A and 48B.

In the connector body 2 thus constructed, a movable member 3 having one end side located in the notch portion 47 of the housing 30 and rotating around the one end side is attached.

The movable member 3 is made of an electrically insulating material, and is supported by the housing so as to be in an open position and a diagram in a vertical posture as shown in FIGS. 1 (A), (B), and 3 (A) to (C). 4 (A) ~ (C) can be turned between the closed positions in the horizontal posture.

The movable member 3 is in the connector width direction and has a width across the entire area of the notch portion 47 and is plate-shaped. A cross section at a position corresponding to the first terminal 11, the second terminal 16, and the fixed fastener 20 is As shown in FIGS. 3 (A) to (C), FIG. 4 (A), FIG. 4 (B), and FIG. 4 (C), the first terminal 11 is formed on one end side where the rotation center is located. The front portion of the flexible arm portion 12B, the front portion of the flexible arm portion 17B of the second terminal 16, and the groove portions 51, 52, 53 of the front portion of the flexible arm portion 21B of the fixed fastener 20. In these grooves 51, 52 and 53 are provided with a first terminal cam portion 54 which is engaged with the pressure receiving portion 12B-1 forming the flexible arm portion 12B of the first terminal 11 and a flexible arm formed at the second terminal 16 The second terminal cam portion 55 engaged with the pressure receiving portion 17B-1 of the portion 17B, and the fixed fastener cam engaged with the pressure receiving portion 21B-1 of the flexible arm portion 21B formed in the fixed fastener 20部 56.

As shown in FIGS. 4 (A) and 4 (B), respectively, the first terminal cam portion 54 and the second terminal cam portion 55 are formed in an elongated shape when the movable member 3 is in the closed position. The first cam portion 54 and the second cam portion 55 are the upper edges of the cam support arm portion 13B of the first terminal 11 and the cam support arm portion 18B of the second terminal 16 when the movable member 3 rotates, respectively. When the movable member 3 is in the closed position, the upper edge of the first terminal cam portion 54 presses the pressure receiving portion 12B-1 of the first terminal 11 upward, and the upper edge of the second terminal cam portion 55 pushes the first The pressure receiving portion 17B-1 of the two terminals 16 is pressed upward. When the pressure-receiving portions 12B-1 and 17B-1 are pressed, the flexible arm portion 12B of the first terminal 11 and the flexible arm portion 17B of the second terminal 16 are respectively bent upward, and the first The contact arm portion 12A of the one terminal 11 and the contact arm portion 17A of the second terminal 16 are respectively bent downward. As a result, the contact portions 12A-1 of the first terminal 11 and the contact portions 17A-1 of the second terminal 16 are crimped to the corresponding pads F2B-1 and F2A-1 of the circuit board F.

As shown in FIG. 4 (C), the cam portion 56 for the fixed fastener has a circular shape and is not supported by the front portion of the lower arm portion 22 of the fixed fastener 20, that is, the connecting arm portion 22B. When the movable member 3 comes to the closed position The fixed fastener The cam portion 56 is moved upward to press the pressure receiving portion 21B-1 of the fixed fastener 20 upward. When the pressure-receiving portion 21B-1 is pressed in the same direction as the first terminal 11 and the second terminal 16, the claw-shaped locking portion 21A-1 provided at the rear end flexes and shifts downward, and enters the flat conductor F. The locking recessed portion F3 prevents the flat conductor F from being detached by the locking portion 21A-1.

Next, a description will be given of the connection procedure of the connector of this embodiment in which the flat conductor F is connected to such a structure.

Before connecting the flat conductor F to the connector, as shown in FIGS. 1 (A) and 3 (A) to (C), the movable member 3 of the connector is erected to the open position. Since the first terminal 11, the second terminal 16, and the fixed fastener 20 positions receive any force from the first terminal cam portion 54, the second terminal cam portion 55, and the fixed fastener cam portion 56 of the movable member 3, Therefore, the contact arm portion 12A of the first terminal 11, the contact arm portion 17A of the second terminal 16, and the locking arm portion 21A of the fixing fastener 20 do not flex and shift downward, and are in a free state, so that the flat conductor F Easy to introduce to the receiving section 38.

When the lead-in position (up and down and horizontal direction) of the flat conductor F is introduced into the connector at a regular position, and the lead-in direction is parallel to the circuit board, it will not be hindered. The connection portion F1 of the flat conductor F will not be hindered. It is introduced into the receiving unit 38.

The flat-type conductor F is often introduced from a normal position or inclined obliquely. In this case, the flat-type conductor F may not be smoothly introduced, or the front-end edge of the flat-type conductor may be damaged by collision with the terminal. However, this embodiment The connector can cope with this situation.

As shown in FIGS. 3 (A) to (C), when the flat conductor F is to be introduced obliquely, in this embodiment, the lower wall 36 is exposed because it is at a position corresponding to both ends in the width direction of the flat conductor. The surface 43 (outside exposed surface 43A) is located above the upper edge of the connection portion 13A-1 of the first terminal 11, so that the leading edge of the flat conductor F will not be in contact with the connection portion 13A-1 of the first terminal 11. The upper edge collides or abuts, but abuts on the exposed surface 43 and is guided forward toward the receiving portion 38. Therefore, the front end edge of the flat conductor F is not damaged by the first terminal 11 made of metal, and can be smoothly introduced into the receiving portion 38 by sliding on the exposed surface 43.

Secondly, when the flat conductor F is introduced into the circuit board in parallel or obliquely, the introduction position may be shifted toward the width direction of the upper and lower connectors. In this case, the front end edge or front end of the flat conductor F comes into contact with the introduction upper guide surface 45 and is guided downward toward the receiving portion 38, and is guided longitudinally by the introduction side guide surface 46, that is, the introduction side. The surface 46A and the introduction-side lateral guide surface 46B are guided toward a regular position in the connector width direction.

In this way, the connection portion F1 of the flat conductor F is introduced toward the normal position and the normal position introduction depth position in the receiving portion 38 (see FIG. 1 (B)).

Next, the movable member 3 is rotated from the open position shown in FIG. 1 (B) toward the closed position shown in FIGS. 4 (A) to (C). When the movable member 3 comes to the closed position, as described above, the first terminal 11 and the second terminal 16 are corresponding to the first terminal cam portion 54 and the second terminal at the pressure receiving portions 12B-1 and 17B-1, respectively. When the cam portion 55 for a part is pressed upward, the flexible arm portions 12B and 17B are bent upward. As a result, the contact arm portions 12A and 17A are directed toward Bending downward, the contact portions 12A-1, 17A-1 are in contact with the corresponding gaskets F2B-1, F2A-1, and the flat conductor F is pressed downward to increase the contact pressure. In addition, the pressure receiving portion 21B-1 of the fixed fastener 20 is pressed upward by the cam portion 56 for the fixed fastener, and the claw-shaped locking portion 21A- is based on the same principle as in the case of the first terminal 11 and the second terminal 16. 1 is moved downward to enter the locking recess F3 of the flat conductor F, and the flat conductor F is surely prevented from detaching.

In the present embodiment, as described above, the flat conductor F is provided with a reinforcing gasket F4 at the connection portion F1. As shown in FIG. 1 (A), the rear edge of the reinforcing washer F4 is located directly behind the locking recess F3 of the flat conductor F, and is close to the two kinds of washer F2A, F2B in the front-rear direction. The position of the rear end of the rear gasket F2B-1, when the connecting portion F1 of the flat conductor F is introduced into the receiving portion 38 to a regular position, as shown in FIG. 1 (B), the rear edge of the aforementioned reinforcing gasket F4 It comes to the same position as the rear end of the upper wall 35 of the casing 30. That is, when the flat-type conductor F is completely introduced to the regular position, the aforementioned reinforcing pad F4 is covered by the upper wall 35 and cannot be seen. The reinforcing gasket F4 is made of the same metal as the gasket of the circuit line F2 and has a luster. The reinforcing conductor F4 emits light during the introduction process until the flat conductor F reaches the regular position, so it is easy to see. Then, when the flat-shaped conductor F reaches the regular position, the luminous reinforcing pad F4 is covered by the upper wall 35 and suddenly becomes invisible. Therefore, it is extremely easy to confirm the state of being introduced into the regular position.

Second, when the flat conductor F is in an incompletely introduced position, as shown in FIG. 5 (A), the reinforcing gasket F4 (for the purpose of FIG. 5 (A)) It is easy to understand that the rear part of the area distribution of the reinforcing shim is given a dot shape. The rear part protrudes from the rear edge of the upper wall 35. By visually inspecting this part, incomplete introduction can be found. This can be achieved by the rear end of the upper wall 35 being recessed more forward than the rear end of the lower wall 36.

Secondly, even if the reinforcing gasket F4 is not made as shown in FIG. 1 (A) and FIG. 5 (A), when the flat conductor F is completely introduced to the regular position, it is covered by the upper wall 35. At the time of introduction, as shown in FIG. 5 (B), the case where it protrudes to the rear and is visible from the outside. As shown in FIG. 5 (B), when it is introduced into the regular position, it is formed from the position toward the rear of the upper wall 35. In the case where the visual confirmation portion F4-1 of the reinforcing gasket F4 is not completely introduced, the front edge of the visual confirmation portion F4-1 does not reach the rear end of the upper wall 35, so that the partial introduction can be confirmed visually.

Next, another aspect of the guide surface of the flat conductor formed in the introduction wall portion 39 will be described.

In the introduction side guide surface 46 in the form of FIGS. 2 (A) and (B), the introduction side vertical guide surface 46B is provided at the front end position of the introduction side horizontal guide surface 46A, but in FIG. 6 (A) ) And (B), examples include a lateral guide surface 46A having a laterally tapered surface that is inclined downward from the upper surface of the lower wall 36 toward the inner side in the width direction of the connector, and the exposed surface 43 is erected from the lower wall 36 The rear end face of the longitudinal side tapered surface is inclined toward the inner side of the connector in the forward direction and the leading side longitudinal guide surface 46B is formed. The introduction-side lateral guide surface 46A and the introduction-side vertical guide surface 46B are located near the rear end of the lower wall 36 serving as the entrance side, forming convex portions, and they have mutually intersecting Edge 46C. Therefore, when the flat-type conductor F is shifted and introduced in the width direction, it is guided with the introduction-side lateral guide surface 46A or the introduction-side vertical guide surface 46B toward the regular position.

Claims (4)

An electrical connector for a flat type conductor includes a plurality of terminals and a housing. The plurality of terminals include a contact portion for contacting a connection portion provided on the front end side in the length direction of the flat type conductor and a circuit board. The connecting connection part, the housing is arranged to maintain the terminal array in the width direction of the connector. The housing is a rear part of the peripheral wall formed by the upper wall, the lower wall and the two side walls, and has an introduction wall part. The receiving portion includes a receiving portion that receives the connection portion of the flat conductor toward the front. The contact portion of the terminal that is in contact with the connecting portion is located in the receiving portion. It is characterized in that the rear end of the upper wall is at least flat in the introduction into the wall portion. The width direction range of the type conductor is located more forward than the rear end of the lower wall, and the upper surface of the lower wall has an exposed surface exposed upward from the rear end of the upper wall, and the exposed surface is in the width direction of the connector. The connecting portion is located outside the arrangement area of the connecting portion above the upper edge of the connecting portion. During the process of introducing the flat conductor toward the receiving portion, the front of the flat conductor is The edge can abut against the exposed surface and be introduced into the wall portion. The rear end of the lower wall has a recessed portion recessed forward in the arrangement area of the connection portion of the terminal in the width direction of the connector. The connection portion faces in the recessed portion. The rear is exposed and protruding. For example, the electrical connector for a flat-type conductor according to item 1 of the patent application, wherein the connection portion of the plurality of terminals is at least a part of the terminal is located within the range of the introduction wall portion in the front-rear direction. For example, in the electrical connector for flat conductors of the scope of application for patent No. 1 or 2, the introduction wall portion is provided on at least both end sides in the width direction of the connector, and below the rear edge of the upper wall, a flat conductor is provided. The lower guide is guided to the pyramid surface inside the receiving portion, and the pyramid surface is used as the upper guide surface. For example, in the electrical connector for flat conductors in the scope of patent application No. 1 or 2, the introduction wall portion is provided on the inner side of the rear edge of the side wall, and the side edge of the flat conductor is provided to be inward in the width direction of the connector. The lead-in pyramid surface is used as the lead-in side guide surface.