KR102001285B1 - Assembly of electric connector and flexible board - Google Patents

Abstract

[PROBLEMS] To provide an assembly of a flexible substrate and a connector in which a pad of a flexible substrate and a wiring portion are not cut off when the flexible substrate is pressed into the connector.
The terminal has a first terminal (20) and a second terminal (30) in which a contact portion (21A) is arranged in the width direction of a flexible substrate, and the contact portion (21A) of the first terminal (20) The width of the contact portion 21A of the first terminal 20 is set to be smaller than the width of the first pad 41 and the width of the contact portion 21A of the first terminal 20 is set to be smaller than the width of the first pad 41, The width of the contact portion 31A of the second front wiring portion 42A is set smaller than the width of the second pad 42 and larger than the width of the second front wiring portion 42A, And the maximum width directional deviation of the flexible substrate is set such that the contact portion 31A of the second terminal 30 located on the second pad 42 contacts the second pad 42 The first rear wiring portion 41B of the first pad 41 adjacent to the first rear wiring portion 41B.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an assembly of an electrical connector and a flexible substrate,

The present invention relates to a non-Zero Insertion Force (Non-Zero Insertion Force) system in which a flexible substrate is pressed into a housing space for a flexible substrate of an electrical connector to resist contact with a contact portion formed on a terminal, Type electrical connector and an assembly of a flexible substrate.

This type of electrical connector and the flexible board are disclosed in the third embodiment in Patent Document 1. The connector of Patent Document 1 has a slit-like space opened in the rear end surface of the housing and forward to the inner side, and the housing is provided with a flexible substrate (FPC) inserted therein. The upper terminal is held on the upper side inner surface of the housing forming the space and the lower terminal is held on the lower side inner surface by the housing so that it is applicable to the connection with the double-sided wiring flexible substrate.

In the use, since the flexible substrate is inserted (pressed in) between both terminals from the leading edge of the flexible substrate with the contact pressure with both the upper and lower terminals, the patent literature 1 does not damage the plating lead formed at the leading edge of the flexible substrate The inlet is formed in an R shape so that the introduction of the flexible substrate is smoothly performed. In Patent Document 1, the double-sided wiring flexible substrate is not shown and described, but the single-sided wiring flexible substrate is shown in Fig. 4 of Patent Document 1. The flexible substrate has a plated portion (pad) which is in contact with a terminal on one surface of the flexible substrate. The pad has a pad array arranged near the leading edge of the flexible substrate and a pad array arranged on the rear side I have. The pads of the two pad rows are alternately arranged in the pad arrangement direction. Therefore, the connector to which the flexible board is connected is of such a type that, on one surface of the flexible board, the terminals contacting the pads are arranged in two rows corresponding to the two pads.

When the connector having the two rows of terminals is of the form of the third embodiment of the patent document 1, it is necessary that the upper row of the one surface of the flexible board for contacting both row of the pad is formed in two rows corresponding to the pads . In this case as well, it is conceivable that the upper end of the two rows has an R-shaped inlet so as not to damage the plating lead connected to the pad. At that time, the lower end functions as a pressing member that presses the flexible substrate from below to cause contact pressure between the flexible substrate and the upper end.

Japanese Patent Application Laid-Open No. 2008-010308

When the upper end of the connector of Patent Document 1 is arranged in two rows and the flexible substrate as the pressing member is pressed by the lower end of the flexible substrate and the flexible substrate disclosed in Fig. 4 of Patent Document 1 is connected thereto, When the flexible substrate is pressed in the normal position with respect to the upper end in the width direction, which is the arrangement direction of the pads, and when the flexible substrate is displaced from the normal position in the width direction with respect to the upper end, As a result, in the press-fitting process of the flexible substrate, the upper end falls off the plating lead surface to the base material surface of the flexible substrate to cut the side edge portion of the plating lead, There is a possibility of generating a cut-away phenomenon of cutting a face. This shrinking phenomenon occurs continuously from the time when the flexible substrate is press-fitted to the time it is completed, and the lead side edge portion or the surface of the base material is shrunk over the press-in distance of the flexible substrate, which causes a contact failure.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an assembly of an electrical connector and a flexible substrate that does not cause such shrinkage.

An electrical connector and a flexible substrate assembly according to the present invention are characterized in that an electrical connector to which the flexible substrate is connected has a housing space for housing the flexible substrate and a terminal is disposed in the housing space and has a contact portion for resilient contact with the flexible substrate , The connection portion formed at the front portion of the flexible substrate is press-fitted into the accommodating space and elastically contacted and held to the predetermined position against the contact pressure with the contact portion of the terminal.

In an assembly of such an electric connector and a flexible substrate, in the present invention, the terminal of the connector is provided with a first terminal arranged in the width direction of the flexible substrate and a second terminal arranged in the width direction And the flexible substrate has a first terminal and a second terminal arranged alternately in the width direction such that the first terminal and the second terminal form a zigzag phase, and when the flexible substrate is press- The first pad and the second pad adjacent to each other are arranged so that the adjacent first and second pads are overlapped in the width direction and the first pad has a width smaller than the first pad And a second rear wiring portion that is narrower than the second pad and extends back and forth, and a second rear wiring portion that is narrower than the second pad and extends back and forth, And the first rear wiring portion has a portion adjacent to the second pad in the width direction and the second front wiring portion is positioned adjacent to the first pad in the width direction, The width of the contact portion of the second terminal is set to be smaller than the width of the first pad and the width of the contact portion of the second terminal is set to be smaller than the width of the second pad and larger than the width of the second front wiring portion, Wherein a distance between the front wiring portion and the first pad is set larger than a distance between the front wiring portion and the first pad and the maximum width direction displacement of the terminal of the flexible substrate with respect to the terminal is set such that the contact portion of the second terminal, And is located apart from the first rear wiring portion of the pad.

According to the present invention having the above-described structure, the flexible substrate receives the contact with the contact portion of the terminal from the beginning of the press-fitting into the connector, and is pressed into the predetermined position against the contact pressure. .

<Regular position in width direction>

When the flexible board is press-fitted into the connector at the regular position with respect to the terminal in the width direction thereof, the first terminal of the connector is positioned with respect to the first pad, and the second terminal is positioned with respect to the second pad, Respectively. Therefore, when the flexible substrate is started to be pressed, the front end edge of the flexible substrate is first press-fitted into contact with the contact portion of the second terminal, and the second front wiring portion connected to the second pad is pressed against the contact pressure, The second pad reaches the position of the contact portion of the second terminal when the flexible substrate is pushed to the predetermined position through the position of the contact portion of the second terminal. The contact portion of the second terminal comes into contact with the second pad through the corresponding second front wiring portion until the press-fitting of the flexible substrate from the start of the pressing of the flexible substrate to the predetermined position is completed because the flexible substrate is at the normal position with respect to the terminal in the width direction And does not contact the first pad adjacent in the width direction.

On the other hand, the contact portion of the first terminal located forward of the contact portion of the second terminal, that is, the inner side of the press-fit direction of the flexible substrate, is pressed by the intervening distance between the contact portions of the second terminal and the first terminal in the press- The flexible substrate is positioned on the first pad beyond the front edge of the flexible substrate. At this time, the contact portion of the first terminal is not in contact with the second front wiring portion adjacent to the first pad in the width direction.

&Lt; Case where it is displaced in the width direction &gt;

When the flexible substrate is displaced from the normal position in the width direction and press-fitted into the connector, the contact portion between the front end edge of the flexible substrate and the second terminal having the contact pressure at the beginning becomes large when the flexible substrate is press- And extends over both the second front wiring portion extending forward from the pad and the first pad adjacent thereto. That is, since the width of the contact portion of the second terminal is larger than the width of the second front wiring portion and larger than the gap between the second front wiring portion and the first pad, under the widthwise shift, And is discharged in the width direction from the second front wirings to extend over the second front wiring portion and the first pad. The contact portion of the second terminal protrudes in the width direction from the second front wiring portion and is positioned on the first pad adjacent to the second front wiring portion under the maximum width direction shift (allowable maximum value) do. Therefore, since the contact portions of the second terminals are supported by the second front wiring portion and the first pad or the adjacent first pads in both the end portions of the contact portion during the press-fitting process, the contact portions of the second terminal come off from the base material surface of the flexible substrate Or the like.

Further, when the flexible substrate is pressed in, the contact portion of the second terminal is transferred from the second front wiring portion to the second pad. The second pad has a sufficient width with respect to the contact portion of the second terminal so that even if the displacement of the flexible board in the width direction with respect to the terminal deviates in the maximum width direction, Even if it is slightly out of the first pad, it is in contact with the second pad with a sufficient width and is positioned on the second pad in a stable posture. At this time, the contact portion of the second terminal is separated from the first rear wiring portion extending rearward from the first pad.

Next, when the displacement is small, the contact portion of the second terminal is on the second front wiring portion extending from the second pad and is shifted in the width direction with respect to the second front wiring portion. On the adjacent first pad, It is not located. In this state, the contact portion of the second terminal is on the second front wiring portion with a sufficient width to make a stable posture in the second front wiring portion, and as the flexible substrate pushes in, do.

On the other hand, the first terminal, into which the front end edge of the flexible substrate is inserted later than the second terminal, is located on the first pad so as to be in contact with the first pad from the beginning irrespective of the displacement. In this way, the respective contact portions of the first terminal and the second terminal are moved to the corresponding first pad and the second pad in a stable posture, and are exposed at a narrow width after the first pad of the flexible substrate There is no possibility of dropping out on the base material surface, and there is no case in which a cut-off phenomenon occurs.

In the present invention, the contact portion of the second terminal has a curved surface or a slope formed at both edges of the contact surface that can be brought into contact with the pad surface so as to avoid the fracture surface, and the flexible substrate is positioned at the position of the first pad in the press- The contact portion of the second terminal can be positioned over the second front wiring portion and the first pad. In this case, the curved surface or slope is located over the second front wiring portion and the first pad. It is preferable that the contact portion of the second terminal is not in contact with the base material surface of the flexible substrate when the second terminal is located over the second front wiring portion and the first pad. In this state, the contact portion of the second terminal does not damage the surface of the base material of the flexible substrate after the first pad in the press-fitting process of the flexible substrate.

In the present invention, the first front wiring portion is formed in front of the first pad, and the first front wiring portion is formed to have the same width as the second front wiring portion. In this case, the contact portion of the first terminal is transferred to the first pad via the first front wiring portion. The first front wiring portion may be formed as a single line with respect to each of the first pads, or a plurality of the first front wiring portions may be formed. In the case where a plurality of terminals are formed, there is a great possibility that the first front-side wiring portion and the second front-side wiring portion are in contact with each other at the front edge of the flexible substrate even if the terminal is displaced.

In the present invention, at least one of the first terminal and the second terminal has a contact arm located on the front surface side where the pad is formed and a pressing arm located on the back surface side, and at least one of the contact arm and the pressure arm It can be formed as an elastic arm.

In the present invention, it is preferable that the housing is provided with a width direction restricting portion for defining a maximum width direction shift of the flexible substrate.

In the present invention, the first rear wiring portion conducting to the first pad and the second rear wiring portion conducting to the second pad are narrower than the second pad and narrower than the second pad, Can be wider than the first rear wiring portion in the range of 2 pads.

As described above, even if both terminals of the first terminal and the second terminal are displaced with respect to the terminal in the width direction, as described above, in the press-fitting process to the predetermined position, Or in a stable posture with a sufficient width with respect to the wiring portion so as not to fall off or tilt from the pad or the wiring portion in the press-fitting process and to cause a chipping phenomenon It disappears.

Fig. 1 is a partially broken perspective view showing an assembly of an electrical connector and a flexible substrate according to an embodiment of the present invention. Fig. 1 (A) is a section at a position of a first terminal, and Fig. 1 And is broken at the position of the terminal.
Fig. 2 is a perspective view showing a terminal. Fig. 2 (A) shows a first terminal, and Fig. 2 (B) shows a second terminal.
3 is a perspective view showing a front portion including a connection portion of a flexible substrate.
4 is a perspective view showing a process of press-fitting the flexible substrate into the connector. Fig. 4 (A) shows the press-in start, Fig. 4 (B) have.
5 is a plan view schematically showing the positional relationship between the pad and the contact portion of the terminal in the press-in process of the flexible substrate with the flexible substrate being at the normal position in the width direction. Fig. 5 (A) 5 (B) and 5 (C) are in the middle of indentation, and FIG. 5 (D) is indent.
6 is a plan view schematically showing the positional relationship between the pad and the contact portion of the terminal in the press-fitting process of the flexible substrate. Fig. 6 (A) 6 (B), 6 (B ') and 6 (C) are in the middle of press-fitting, and FIG.
Fig. 7 shows a modification of the shape of the side edge portion at the contact portion of the second terminal, and Figs. 7 (A) and 7 (B) show different contact states with respect to the pad.
8 is a partial plan view showing a modified example of the flexible substrate.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 (A) and 1 (B) are views showing a state in which the electric connector 10 and the flexible substrate 40 according to the present embodiment are mounted on a flexible substrate 40 in a state where the flexible substrate 40 is connected to the electric connector 10 It is a perspective view. The electrical connector 10 is arranged such that the two terminals of the first terminal 20 and the second terminal 30 are alternately arranged by the housing 11, 1 (B) is a cross-sectional view at the position of the second terminal 30, and FIG.

The housing 11 is made of an electrically insulating material and has a housing main body 12 and a movable member 13 on a lid that can be opened and closed. The housing 11 is formed on the front side of the flexible substrate 40 (right side in FIG. An accommodating space 14 in which a portion of the connection station is press-fitted forward is formed between the housing main body 12 and the movable member 13 in the closed position and is opened rearward.

1 (A), the rear end of the first terminal 20 at the rear end side and the front end of the second terminal 30 at the front end side are referred to as the housing main body 12 ) By the integral molding. The first terminal 20 and the second terminal 30 will be described later in detail. 1 (A) and 1 (B), the housing main body 12 is provided between the first terminal 20 and the second terminal 30 in the terminal arrangement direction at an intermediate portion in the front- (Window portion) 12A formed in a slit through which the light beam passes.

In the housing main body 12, side walls 15 are formed at both ends in the width direction (terminal arrangement direction). The side wall 15 is provided with a bearing portion 17 for rotatably supporting the rotation shaft of the movable member 13 at an intermediate portion on the upper side of the upper regulating portion 16 for the flexible substrate 40, have. The front end of the flexible substrate 40 is positioned at a position spaced from the inner side surface of the side wall 15 by a distance from the bottom wall of the housing main body 12, A width direction restricting portion 18 for restricting the width direction position of the support portion 18 is formed.

The width direction restricting portion 18 abuts the side edge of the front end portion of the flexible substrate 40 when the flexible substrate 40 is pushed into the connector 10 to a predetermined position, The flexible substrate 40 is regulated such that the position is within a predetermined range with respect to the normal position. On the other hand, the upper regulating portion 16 has a groove portion 16A opened rearward and inward in the width direction on the lower portion thereof. The upper regulating portion 16 has a groove From the lower surface of the groove portion 16A and regulates the movement of the flexible substrate 40 upward. The flexible substrate 40 will be described later in detail.

The movable member 13 rotatably supported by the bearing portion 17 of the housing main body 12 has a shaft portion 13A formed in a plate shape and projecting sideways from the vicinity of the rear end, And is rotatably supported by a bearing portion 17. The rear end of the movable member 13 is located immediately adjacent to the upper regulating portion 16 of the housing main body 12 as described above and is located between the opposite side walls 15 of the housing main body 12 And covers the housing main body 12 from above in a range in front of the upper regulating portion 16. The front end of the housing body 12 protrudes forward from the housing main body 12. [

Since the rear end of the movable member 13 is positioned forward of the upper regulating portion 16, the housing main body 12 is extended from the rear side of the movable member 13 to the extending portion . The extension portion thereof provides a face for positioning the front portion of the flexible substrate 40 against the start of the press-fitting of the connector.

The movable member 13 has a rounded shape at the rear end where the shaft portion 13A is located and the flexible substrate 40 disposed on the extended portion of the housing main body 12 is press- So that it can smoothly enter into the accommodation space (14). The front end of the movable member 13 protrudes from the front end of the housing main body 12 and when the movable member 13 is rotated upward toward the open position, ). When the movable member 13 is pivoted upwardly toward the open position with the shaft portion 13A as the center by lifting by the operating portion 13B, the movable member 13 is further rotated downward toward the closed position shown in Fig. 1 A top surface 13C guided by the side wall 15 of the housing main body 12 is formed as an arm shape from the front end side portion of the movable member 13 toward the rear side. And the guided portion 13C enters between the side wall 15 of the housing main body 12 and the width direction restricting portion 18 and is guided.

The movable member 13 is formed with an elastic latching portion 13F of an arm extending from the front portion to the rear portion on the side of the side surface of the movable member 13 (lower surface in Fig. 1). When the movable member 13 is in the closed position, when a flexible substrate to be described later is press-fitted, the elastic member 13F of the flexible substrate 13F When the resilient deformation of the resiliently engaging portion 13F is released when the resiliently resiliently engaging portion 13F comes into contact with the resilient portion at the front end to elastically deform the resiliently resilient member 13F beyond the resilient portion, The latching portion is inserted, thereby preventing the flexible substrate from slipping out toward the rear side.

The movable member 13 is formed so that the groove portions 13D and 13E into which the rear ends of the terminals 20 and 30 to be described later enter the edge portion of the rounded rear end are fitted to the rear end shape of the terminals 20 and 30 Respectively. The trenches 13D and 13E are formed in such a manner that the rear ends of the terminals 20 and 30 do not interfere with the rotation when the movable member 13 rotates between the open position and the closed position, The rear end is accommodated. The movable member 13 covers the upper and lower arm portions 21 and 31 of the terminals 20 and 30 on the back surface thereof when the movable member 13 is in the closed position.

As shown in Fig. 2A, the first terminal 20 is formed by bending the metal strap member in the plate thickness direction and has a substantially U-shaped cross section on the hair pin. A bent portion 22 bent at the front end position of the ivory arm portion 21 and a lower arm portion 23 connected to the ivory arm portion 21 via the bent portion 22 and extending rearward have. The ivory arm portion 21 has a contact portion 21A protruding downward in a V-shape toward the front of the contact portion 31A of the second terminal 30, which will be described later, in the middle of the fore and aft direction. The upper arm portion 21 is capable of being elastically warped in the vertical direction, that is, in the plate thickness direction, and the contact portion 21A is in contact with the corresponding pad of the flexible substrate 40 described later with contact pressure, The guiding portion 21B is inclined such that the rear portion of the contact portion 21A is raised upward so that the introduction of the flexible substrate 40 is facilitated by the guiding portion 21B. On the other hand, the lower arm portion 23 extends rearward beyond the upper arm portion 21 in the front-rear direction and reaches the position rearward of the rear end edge of the housing main body 12. The rear end portion of the lower arm portion 23 is formed with a connecting portion 23A located downwardly via an inclined portion. The connection portion 23A is provided for solder connection with a corresponding circuit portion of a circuit board (not shown). The second terminal 30 is held by the housing main body 12 integrally molded with the rear portion of the lower arm portion 23 as a portion adjacent to the inclined portion.

As shown in Fig. 2 (B), the second terminal 30 is formed by bending the metal strap member in the thickness direction like the first terminal 20 and has a substantially crank-like shape, A bent portion 32 directed downward from the front end (right end in the drawing) and a connecting portion 33 extending forward from the lower end of the bent portion 32. As shown in Fig. The ivory arm portion (31) has a contact portion (31A) protruding downward in a V-shape from the rear end side thereof. The upper arm portion 31 having the contact portion 31A is capable of elastic bending in the vertical direction, that is, in the plate thickness direction, like the upper arm portion 21 of the first terminal 20. The contact portion 31A, Contact with the corresponding pad of the flexible substrate 40 to be described later. The ivory arm portion 31 has a guiding portion 31B that is inclined so that the rear portion of the upper arm portion 31 is lifted upwards from the contact portion 31A so that the guiding portion 31B facilitates the introduction of the flexible substrate. On the other hand, the connection portion 33 extends from the bottom surface side of the housing main body 12 to the outside of the housing main body 12 and provides solder connection with a corresponding circuit portion of a circuit board (not shown). The second terminal 30 is held by the housing main body 12 which is integrally molded at the bent portion 32.

The upper arm portion 21 of the first terminal 20 is narrower than the lower arm portion 23 and the upper arm portion 31 of the second terminal 30 is wider than the bent portion 32 or the connecting portion 33 The contact portion 21A of the first terminal 20 and the contact portion 31A of the second terminal 30 are formed to be wider than the inclined portion and further curved at the side edges. The contact portions 21A and the contact portions 31A are sufficiently accommodated in the corresponding pads in the width direction when they are connected to the flexible substrate at regular positions in the width direction and narrower than the widths of the corresponding pads of the flexible substrate 40. [ As shown in FIGS. 2A and 2B, the contact portion 21A and the contact portion 31A are preferably formed with curved surfaces or slopes 21A-1 and 31A-1 at both side edges thereof .

The contact portion 21A of the first terminal 20 and the contact portion 31A of the second terminal 30 in FIGS. 1 (A) and 1 (B) The flexible substrate 40 which is press-fitted into the housing space 14 of this connector is a flexible substrate 40 having a front end edge connected to the first terminal 20 and the second terminal 30, The first pad 41 and the second pad 42 have a group of the first pads 41 arranged in a row and a group of the second pads 42 arranged in the rear, Are arranged so as to overlap each other when viewed in the front-rear direction, and are arranged in a zigzag pattern. The first pad 41 is located at the position where the contact portion 21A of the first terminal 20 and the second pad 42 are positioned at the same position in the width direction with the contact portion 31A of the second terminal 30, The first pad 41 and the second pad 42 are spaced apart from each other by a distance corresponding to the distance between the contact portion 21A and the contact portion 31A in the forward and backward directions, The front end portions of the two pads 42 are substantially at the same position in the front-rear direction. The flexible substrate 40 forms a connecting region P for connection with the connector 10 in the region where the first pad 41 and the second pad 42 are disposed.

The first pad 41 and the second pad 42 are formed so that the wiring portions extending in the front and rear directions are connected to each other. The wiring portion is narrower than the corresponding pad. The first pad 41 arranged near the front edge of the flexible substrate 40 is provided with a first pad 41 extending forward from the first pad 41 at a short distance from the front edge of the flexible substrate 40 to the front edge of the flexible substrate 40, The front wiring portion 41A and the first rear wiring portion 41B extending rearward from the rear end of the first pad 41 are formed to be conductive. The first rear wiring portion 41B extends rearwardly between two adjacent second pads 42 at a rear position of the first pad 41 and extends in the front and rear direction with a second pad 42 ) Is formed as a narrow width portion 41B-1 having a narrow width with respect to a portion behind the second pad 42. [ The second pad 42 is provided with a second front wiring portion 42A which extends between the adjacent two first pads 41 and extends to the front edge of the flexible substrate 40, And a second rear wiring portion 42B extending from the rear end of the pad 42 to the rear side is formed to be conductive. The second front wiring portion 42A has the same width as the narrow width portion 41B-1 and the second rear wiring portion 42B has the same width as that of the narrow width portion 41B- And is equal in width to the rear portion of the rear wiring portion 41B.

The first rear wiring portion 41B and the second rear wiring portion 42B are all connected to the corresponding wiring located behind the connection region P of the flexible substrate 40. [ This corresponding wiring is located in the inner layer of the flexible substrate 40, and is not shown in the figure.

The flexible substrate 40 is mounted on the flexible substrate 40 in the forward and backward directions to a connecting region P where the first pad 41 and the second pad 42 are formed, The reinforcing plate 43 is stuck to the back side (the lower side in Figs.

3, the flexible substrate 40 has a concave portion 44 and a vertically-restricting portion 45 of a triangular shape on the side edge portion in the range in which the reinforcing plate 43 is attached, I have. When the flexible substrate 40 is press-fitted into the connector 10 to a predetermined position when the movable member 13 is in the closed position, the engaged portion 44 is elastically deformed And is positioned corresponding to the engagement portion 13G projecting downward from the rear end of the engagement portion 13F so that the engagement portion enters the engagement portion 44 to prevent the flexible substrate 40 from being withdrawn to the rear side do. The side edge of the front portion of the flexible substrate 40 is positioned so as to be in contact with the width direction of the flexible substrate 40 when the flexible substrate 40 is pressed into the connector 10 46 are formed. On the other hand, the upwardly-to-be-controlled portion 45 has a triangular wing shape in which the front edge has the inclined edge and the rear edge is the right angle edge extending in the width direction. When the flexible substrate 40 is press- And is formed to be positioned in the groove portion 16A formed below the upper regulating portion 16 formed in the housing main body 12 described above. Thus, the flexible substrate which has been press-fitted to the predetermined position is prevented from being pulled out by engagement of the engaged portion 44 with the engagement portion 13G of the movable member 13, Lifting upward from the lower surface of the upper regulating portion 16 is prevented even if the flexible substrate 40 is received in the rear portion 16A and the external force is lifted from the rearward position outside the connector.

The dimensions of the first terminal 20 and the second terminal 30 in the width direction with respect to the flexible substrate 40 thus formed have the following relationship. That is, the width of the contact portion 21A of the first terminal 20 is set smaller than the width of the first pad 41, and the width of the contact portion 31A of the second terminal 30 is set to be smaller than the width of the second pad 30 42 and is set larger than the width of the second front wiring portion 42A and is set larger than the distance between the second front wiring portion 42A and the first pad 41. [ The displacement of the flexible substrate 40 in the maximum width direction allowed when the flexible substrate 40 is pressed into the first terminal 20 and the second terminal 30 can be prevented by the second terminal 42, The contact portion 31A of the second pad 30 is located apart from the first rear wiring portion 41B of the adjacent first pad 41 of the second pad 42. [

4 and 6, a description will be given of the procedure and the situation in which the flexible board 40 is press-fitted into the electric connector 10 and connected to the assembly of the electric connector and the flexible board of the present invention in the above- . 5 and 6, the contact portion 21A of the first terminal 20 and the contact portion 31A of the second terminal 30 are shown only by the contact position and the range with the corresponding pad.

Prior to the connection of the flexible substrate 40, the electrical connector 10 is configured such that the movable member 13 is in the closed position, and the press-fitting of the flexible substrate 40 into the electrical connector 10 in this state is A) to (C).

Fig. 4 (A) shows the press-fitting start, Fig. 4 (B) shows the press-fitting, and Fig. 4 (C) shows the press fitting end. The position and state of the terminals 20 and 30 do not change even when the movable member 13 is opened and closed and the flexible substrate 40 is in contact with the contact portions of the terminals 20 and 30 21A, and 31A, and press-fitting proceeds in resistance to the contact pressure. Hereinafter, the case where the flexible substrate 40 is pressed at the regular position in the width direction with respect to the connector, and the case where the flexible substrate 40 is press-fitted in the state of being displaced from the regular position in the width direction will be described.

<Regular position in width direction>

Both of the connector and the flexible substrate are formed with normal precision. The flexible substrate 40 is configured such that the widthwise restricted portion 46 formed at the edge of the front end portion of the flexible substrate 40 is pressurized in the width direction regulation of the housing main body 12 And is subjected to restriction in the width direction when it is press-guided in the portion (18). In this way, when the flexible substrate 40 is press-fitted to the predetermined position, the relative position in the width direction with respect to the connector becomes a normal position. 5 shows the press-fitting process of the flexible substrate 40 at the regular position in the width direction. The contact portions 21A, 31A of the terminals 20, 30 and the pads 41, 42 and the relationship between the width direction regulating portion 18 and the width direction regulated portion 46 is shown in a simplified manner.

As described above, when the flexible substrate 40 is at the regular position in the width direction with respect to the connector 10, the flexible substrate 40 is pressed into the connector having the contact pressure with the first terminal 20 and the second terminal 30 5A, the contact portion 21A of the first terminal 20 of the connector 10 is electrically connected to the first pad 41 and the second terminal 30 Are all located coincident with each other in the width direction center positions with respect to the second pads 42 (see Fig. 5 (A)). The front end edge of the flexible substrate 40 is first press-fitted into the contact portion 31A of the second terminal 30 with the contact pressure, and the front end edge of the flexible substrate 40 is pressed into the second pad 42 The second front wiring portion 42A to be connected passes through the position of the contact portion 31A of the second terminal 30 against the contact pressure (see FIGS. 5B and 5C). Thus, when the flexible substrate 40 is pushed to a predetermined position, the second pad 42 reaches the position of the contact portion 31A of the second terminal 30. Since the flexible substrate 40 is in the normal position with respect to the terminals (i.e., the first terminal 20 and the second terminal 30) in the width direction, until the completion of the pressing of the flexible substrate 40 to the predetermined position The contact portion 31A of the second terminal 30 moves in contact with the second pad 42 via the corresponding second front wiring portion 42A and is moved to the first pad 41 adjacent in the width direction There is no case of contact, and no case of being dropped on the base material.

On the other hand, the contact portion 21A of the first terminal 20 located at the front side of the contact portion 31A of the second terminal 30, that is, at the side inward of the press-fit direction of the flexible substrate 40, At the time when the insertion of the flexible substrate 40 is advanced by the distance between the contact portion 31A of the terminal 30 and the contact portion 21A of the first terminal 20, 41 (see (C), (D) of FIG. 5). At this time, the contact portion 21A of the first terminal 20 does not come in contact with the second front wiring portion 42A adjacent to the first pad 41 in the width direction, There is no case.

The contact portion 31A of the second terminal 30 is placed on the second front wiring portion 42A extending from the second pad 42. In this case, And are not located on the adjacent first pads 41 even if they are shifted in the width direction with respect to the second front wiring part 42A. In this state, the contact portion 31A of the second terminal 30 is on the second front wiring portion 42A with a sufficient width to be in a stable posture in the second front wiring portion 42A, and the flexible substrate 40, the second pad 42 is moved.

&Lt; Case where it is displaced in the width direction &gt;

Even if either the connector or the flexible board deviates from the regular dimension and the flexible board is restricted in the width direction by the width direction restricting portion of the housing in the width direction restricting portion and the terminal and the pad are relatively shifted from the normal position in the width direction . In some cases, the flexible substrate is inserted while being inclined obliquely in the width direction. Of course, there is a limit to the deviation, and it is premised that it falls within a permissible range which can be coped with by the present invention.

6 (A)). In this case, when the flexible substrate 40 is first displaced from the normal position in the width direction and pressed into the connector 10 6 (B), the contact portion 31A of the second terminal 30, when the displacement is large, is in contact with the second pad 42 extending forward from the second pad 42 at the start of press- And extends over both the front wiring portion 42A and the first pad 41 adjacent thereto. That is, the width of the contact portion 31A of the second terminal 30 is larger than the width of the second front wiring portion 42A and larger than the width of the second front wiring portion 42A and the first pad 41 The contact portion 31A of the second terminal 30 is released in the width direction from the second front wiring portion 42A and the second front wiring portion 42A and the first pad 41). The contact portion 31A of the second terminal 30 comes out in the width direction from the second front wiring portion 42A and the second front wiring portion (the uppermost wiring portion) (Refer to (B ') in FIG. 6). The contact portions 31A of the second terminals 30 are formed such that the both side ends of the contact portions 31A are electrically connected to the second front wiring portion 42A and the first pad 41, 1 pad 41, it is not brought into contact with the base material surface of the flexible substrate 40.

6 (C) and 6 (D), the contact portion 31A of the second terminal 30 is electrically connected to the second front wiring portion 42A and the first Or from the first pad to the second pad 42. In this case, Since the second pad 42 has a sufficient width with respect to the contact portion 31A of the second terminal 30, the misalignment of the flexible substrate 40 in the width direction with respect to the terminals 20, Even if the contact portion 31A of the second terminal 30 is displaced slightly from the second pad 42 in the width direction, the contact portion 31A of the second terminal 30 contacts the second pad 42 with a sufficient width, And is located on the second pad 42. At this time, the contact portion 31A of the second terminal 30 is separated from the first rear wiring portion 41B extending from the first pad 41 rearward.

On the other hand, the first terminal 20, in which the front end edge of the flexible substrate 40 is pushed in later than the second terminal 30, is contacted only with the first pad 41 from the beginning irrespective of the displacement, 1 pad 41 as shown in Fig. The contact portions 21A and 31A of the first terminal 20 and the second terminal 30 are moved to the corresponding first pad 41 and the second pad 42 in a stable posture, The side edges of the first and second pads 41 and 42 and the first and second front wiring portions 41A and 42A do not drop off on the base material surface of the flexible substrate 40. Therefore, There is no case where a chipping phenomenon is generated at the corner portion or the like.

In the present embodiment, as shown in Figs. 7A and 7B, the abutting portion 31A of the second terminal 30 is formed so that both edges of the contact surface that can contact the second pad surface (not shown) When the flexible substrate 40 is at the position of the first pad 41 in the press-fit direction under the maximum width direction shift, the flexible substrate 40 has the curved surface 31A-1 or the inclined surface 31A- The contact portion 31A of the first front wiring portion 42A and the contact portion 31A of the second front wiring portion 42A can be positioned over the second front wiring portion 42A and the first pad 41. [ In this case, the curved surface 31A-1 or the slant surface 31A-2 is located over the second front wiring portion 42A and the first pad 41. [ When the second terminal 30 has the curved surface 31A-1 or the slant surface 31A-2, the contact portion 31A of the second terminal 30 is electrically connected to the second front wiring portion 42A, Contact with the surface of the base material of the flexible substrate 40 when the flexible substrate 40 is located over the flexible substrate 40. In this state, the abutting portion 31A of the second terminal 30 does not damage the base material surface of the flexible substrate 40 during the press-fitting process of the flexible substrate 40. [

In the present invention, the maximum width direction shift of the contact portion 31A of the second terminal 30 with respect to the second pad 42 is 3/4 of the width of the contact surface of the contact portion 31A. When the flexible substrate 40 is press-fitted, the contact portion 31A of the second terminal 30 abuts against the abutting portion 31A of the second terminal 30 when the maximum width direction deviation is larger than 3/4 of the width of the abutting portion 31A of the second terminal 30. [ At the time of starting, the contact portion 31A deviates from the second front wiring portion 42A or becomes unstable greatly deviating from the second pad 42 at the time of completion of the press fitting, or contacts the first rear wiring portion 41B Because it causes problems.

For example, at least one of the first terminal 20 and the second terminal 30 may be connected to the flexible substrate 40 via a pad (not shown). In this case, A contact arm positioned on a front surface side formed and a pressing arm positioned on a back surface side, and at least one of the contact arm and the pressing arm can be formed as an elastic arm.

In the present invention, improvements can be made with respect to the flexible substrate. In the flexible substrate 40 shown in Fig. 3, the first front wiring portion 41A and the second front wiring portion 42A are located at the front edge of the flexible substrate 40. [ Both of the first front wiring portion 41A and the second front wiring portion 42A are narrower in width direction than the pads, so that the distance between them is widened. Therefore, in the case of Fig. 3, when the terminal is displaced in the width direction of the flexible substrate, there is a risk that when the terminal is positioned at the front edge of the flexible substrate, the terminal deviates from either one of them and the substrate surface of the flexible substrate is shaved. 8 showing a modification of the present invention, a plurality of, for example, two first front wiring portions 41A of the first pads 41 having a short distance to the leading edge are formed, The risk can be avoided. In the example of Fig. 8, the first front wiring portion 41A extending forward at both ends in the width direction of the first pad 41 is formed, and has two first front wiring portions. As a result, when the contact portion 21A of the first terminal 20 is in the normal position P in the width direction, the contact portion 21A of the first terminal 20 extends over both the first front wiring portions 41A, 21A) or the contact portion 31A of the second terminal 30 is at the maximum shift position Q in the width direction, the first front wiring portion 41A.

Thus, even if the terminal is at the position of the front edge of the flexible substrate, the surface of the base material of the flexible substrate is not cut off.

10: electrical connector 41: first pad
18: width direction restricting portion 41A: first front wiring portion
20: first terminal 41B: first rear wiring portion
21A: contact portion 42: second pad
30: second terminal 42A: second front wiring portion
31A: contact portion 42B: second rear wiring portion
40: flexible substrate

Claims (8)

The electrical connector to which the flexible substrate is connected has a housing space for housing the flexible substrate between the housing and the movable member that can be opened and closed with respect to the housing,
A terminal portion of the metal band member bent in the plate thickness direction is disposed in the accommodating space and has a contact portion bent in a V shape protruding in the plate thickness direction of the metal band member toward the flexible substrate for elastic contact with the flexible substrate, And a rear end inclined in a direction away from the flexible substrate toward the front end from the contact portion is received in a groove portion formed in the movable member, and a connection portion formed at a front portion of the flexible substrate is forwardly inserted into the accommodation space, An assembly of an electrical connector and a flexible substrate which is press-fitted to be resiliently contacted and held against contact with a contact portion,
The terminal of the connector has a first terminal in which the contact portion is arranged in the width direction of the flexible substrate and a second terminal arranged in the width direction behind the first terminal in the pushing-in direction of the flexible substrate, Terminals are arranged alternately in the width direction so as to form a zigzag phase,
The flexible substrate is formed by arranging a first pad and a second pad which are in contact with respective contact portions of the first terminal and the second terminal when the flexible substrate is press-fitted to the predetermined position, and the adjacent first and second pads The first pad has a first rear wiring portion that is narrower in width than the first pad and extends toward the rear, and a second rear wiring portion that is narrower in width than the second pad and extends back and forth 2 front wiring portion and the second rear wiring portion are made conductive,
The first rear wiring portion has a portion adjacent to the second pad in the width direction and the second front wiring portion is positioned adjacent to the first pad in the width direction,
The width of the contact portion of the first terminal is set to be larger than the width of the guide portion of the first terminal and smaller than the width of the first pad,
The width of the contact portion of the second terminal is set to be larger than the width of the guide portion of the second terminal and smaller than the width of the second pad and larger than the width of the second front wiring portion, And the maximum width direction displacement of the flexible substrate with respect to the terminals is set such that the contact portion of the second terminal located on the second pad is set to be larger than the interval of the first rear wiring portion Lt; / RTI &gt;
The contact portion of the second terminal has a curved surface or a slope at both edges of the contact surface that can be brought into contact with the pad surface, and when the flexible substrate is at the position of the first pad in the press-fit direction under the maximum width direction shift, 2 front wirings and the first pads of the flexible printed circuit board. delete The method according to claim 1,
Wherein the contact portion of the second terminal is not in contact with the surface of the base material of the flexible substrate when the contact portion of the second terminal is located over the second front wiring portion and the first pad. The method according to claim 1,
Wherein the first front wiring portion is formed in front of the first pad and is formed to have the same width as that of the second front wiring portion. 5. The method of claim 4,
Wherein a plurality of first front wiring portions are formed for each of the first pads. The method according to claim 1,
At least one of the first terminal and the second terminal has a contact arm located on the surface side of the flexible substrate on which the pad is formed and a pressing arm located on the back side, and at least one of the contact arm and the pressing arm is formed as an elastic arm Wherein the flexible connector has an electrical connector and a flexible substrate. The method according to claim 1,
Wherein the housing has a width direction restricting portion for defining a maximum width direction shift of the flexible substrate. The method according to claim 1,
The first rear wiring portion conducting to the first pad and the second rear wiring portion conducting to the second pad are narrower than the second pad with the same width at the rear than the second pad and narrower than the second pad in the range of the second pad in the front- Wherein the first rear wiring portion is wider than the first rear wiring portion.

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