KR20030011205A - Connector for fpc/ffc - Google Patents

Abstract

PURPOSE: To provide a connector for FPC/FFC capable for improving the FPC/ FFC insertion workability and has little possibility of scratching the FPC/FFC, with respect to the actuator rotation-type connector for FPC/FFC provided with stopper fittings, respectively having tilt preventing parts, for preventing the coreless slipping-off of the FPC/FFC, on both end parts of the FPC/FFC inserting guide face of an insulator. CONSTITUTION: Vertical guide faces for narrowing the height of a FPC/FFC inserting space are formed on the tilt preventing parts of a pair of stopper fittings, extending from an inlet part of the FPC/FFC inserting guide face to a depth part.

Description

Connector for FPC / FCC {connector for FPC / FFC}

The present invention relates to a connector used when connecting a flexible printed circuit board (FPC), a flexible flat cable (FFC) and a contact group (substrate).

The FPC / FFC connector supports a plurality of contacts for conducting FPC / FFC and a substrate to an insulator having an insertion guide surface into which the FPC / FFC is inserted, and an insertion opening subsequent to the insertion guide surface. The FPC / FFC inserted in the insulator is connected between the locked position and the unlocked position by an actuator (slider) supported in a rotatable motion operation (to obtain contact pressure).

When the FPC / FFC connector is connected to the FPC / FFC in a state in which the FPC / FFC is connected, a bending force in the direction in which the actuator is rotated in the release direction is easily removed. In order to cope with this problem, Patent No. 3029985 has already provided an FPC / FFC insertion space at both ends of the FPC / FFC insertion guide surface of the insulator between the solder angle soldered to the dummy pad on the substrate and the FPC / FFC insertion guide surface. The connector for FPC / FFC which provided the suppression bracket which has an impact prevention part is proposed.

However, in recent years, FPC / FFC connectors and FPC / FFCs are becoming smaller in size with narrower pitches of contacts. Such suppression brackets deteriorate the insertion workability of FPC / FFCs very much. In addition, there was a fear that the restraint bracket would damage the FPC / FFC.

Accordingly, the present invention provides a suppression bracket having an impact preventing portion for forming an FPC / FFC insertion space between both ends of the FPC / FFC insertion guide surface of the insulator between the solder angle soldered to the dummy pad on the substrate and the FPC / FFC insertion guide surface. In the installed FPC / FFC connector, it is an object to improve the insertion workability of the FPC / FFC and to obtain a connector for the FPC / FFC of the actuator rotational movement type which does not cause damage to the FPC / FFC. Moreover, an object of this invention is to obtain the connector for FPC / FFC which raised the bearing capacity of the actuator which rotates.

1 is a plan view showing one embodiment of an FPC / FFC connector according to the present invention.

Fig. 2 is a front view showing one embodiment of the FPC / FFC connector according to the present invention.

Fig. 3 is an enlarged perspective view of the vicinity of a suppression bracket showing an embodiment of the FPC / FFC connector according to the present invention.

4 is a cross-sectional view taken along line IV-IV of FIG. 1.

5 is a cross-sectional view taken along the line VV of FIG. 1.

It is sectional drawing in the cross-sectional state of FIG. 4 which shows the state change at the time of operating a rotational motion of an actuator.

It is sectional drawing in the cross-sectional state of FIG. 5 which shows the state change at the time of operating a rotary motion of an actuator.

8 is a perspective view showing a relationship between an actuator, one front contact, and one inner contact.

FIG. 9 is a perspective view of an essential part corresponding to FIG. 3 showing another embodiment of the FPC / FFC connector according to the present invention. FIG.

FIG. 10 is a plan view of the main portion of the suppression bracket of the FPC / FFC connector of FIG.

11 is a front view of FIG. 10.

12 is a cross-sectional view taken along the line II-XIII of FIG. 10.

FIG. 13 is a cross-sectional view taken along the line XIII-XIII of FIG. 10.

14 is a perspective view of FIG. 10.

*** Explanation of symbols for main parts of drawing ***

10 substrate 11 insulator

10S: FPC / FFC insertion guide face 10T: insertion opening

11: rotary motion support 12, 13: contact receiving groove

20: actuator 21: rotary axis of motion

21X: center axis of rotational motion 22, 23: contact receiving groove

22a: insertion protrusion 23a: spring receiving portion

24: pressurizing protrusion

30: 1st contact group (front contact group)

40: 2nd contact group (inner contact group)

30a, 40a: Soldering angle 30b, 40b: Contact angle

30c: Stabilizer angle (fixed angle)

30s, 40s: FPC / FFC Insertion Groove

40c: Stabilizer angle (elastic deformation angle)

40d: hook portion 50: FPC / FFC

60: restraining bracket 60S: FPC / FFC insertion space

61 soldering angle 62 impact protection

62a: Width direction guide surface 62a ': Taper portion

62b: vertical direction guide surface 63: rotation axis support portion

In order to achieve the above object, the present invention provides an insertion guide surface for inserting an FPC / FFC, an insulator having an insertion opening subsequent to the insertion guide surface, a land group of a substrate supported by the insulator, and fixing the insulator; A plurality of contacts conductive to the FPC / FFC inserted in the insertion opening, the contact group of the contact group which is supported by the insulator so as to be rotatable between the locking position and the unlocking position so as to be elastically deformed at the locking position, and the FPC / FFC. FPC / FFC insertion space between the actuator under pressure and at least one end of the FPC / FFC insertion guide surface of the insulator, and between the solder angle soldered to the dummy pad on the substrate and the FPC / FFC insertion guide surface. A connector for FPC / FFC having a restraining bracket having an impact preventing portion for forming a

The impact preventing portion of the suppression bracket is formed with a vertical guide surface for narrowing the height of the FPC / FFC insertion space from the inlet portion of the FPC / FFC insertion guide surface to the inside.

The restraint bracket can be provided with a widthwise guide surface approaching the central side of the insulator from the inlet portion of the FPC / FFC insertion guide surface to the inside.

Furthermore, it is possible to provide a rotary shaft support for supporting at least a portion of the rotary motion support of the actuator.

On the lower surface of the widthwise guide surface of the impact preventing portion, the tapered portion inclined toward the lower surface of the vertical guide surface from the soldering side to the vertical guide surface side and from the inlet portion to the inner portion of the FPC / FFC insertion guide surface, respectively. If formed, the FPC / FFC can be guided more reliably to the insertion guide surface.

1 to 8 show a first embodiment of the connector for FPC / FFC according to the present invention. In the insulator 10 having a flat plate shape parallel to the substrate B as a whole of an insulating material, a pair of rotational movement supporting portions 11 are formed on the left and right sides of the insulator 10, In the meantime, the left and right rotational motion shafts 21 of the actuator 20 having a substantially flat plate shape made of insulating material are supported freely in the rotational motion.

21X (FIGS. 4 and 6) shows the central axis of rotational motion thereof. When the actuator 20 is rotated about the rotary shafts 21 and 11, the FPC / FFC insertion guide surface 10S into which the FPC / FFC 50 (FIGS. 6 and 7) is inserted (FIG. 3). 6, 7 and below insertion guide surface) is opened and closed. That is, the insertion guide surface 10S is closed by rotating the actuator 20 in the locked position, and opened by rotating the actuator 20 in the unlocked position. An insertion opening 10T is formed in the insulator 10 after the insertion guide surface 10S.

In the insulator 10, the contact accommodating groove 12 which accommodates the 1st contact group 30, and the contact accommodating groove 13 which accommodates the 2nd contact group 40 are arrange | positioned at every other predetermined interval. .

As shown in Fig. 8, the first contact group 30 has a surface on the solder angle 30a and the insertion guide surface 10S, each of which is soldered to the land BL on the substrate B, respectively. Connection angle 30b and a stabilizer angle 30c opposite to the contact angle 30b. Similarly, each of the second contact groups 40 has a solder angle 40a soldered to the land BL on the substrate B, a contact angle 40b facing the insertion guide surface 10S, and a stabilizer facing the contact angle 40b. Angle 40c is provided. The downward hook part 40d is formed in the front-end | tip part of the stabilizer angle 40c. One end of the contact angle 30b and the stabilizer angle 30c of the first contact group 30 and the contact angle 40b and the stabilizer angle 30c of the second contact group 40 are respectively connected, and the other end thereof is closed. A flat U-shape is formed, and the FPC / FFC insertion grooves 30s and 40s are formed in the insertion opening 10T of the insulator 10. The front elastic contact angle 30b and the inner elastic contact angle 40b are arranged zigzag in plan view.

In the actuator 20, the contact storage grooves 22, which are located in the vicinity of the rotational motion central axis 21X and are positioned on the contact receiving grooves 12 and 13 in the extending direction of the insulator 10, respectively ( 23) is formed. As can be seen in Figure 8, the contact receiving grooves 22, 23 are formed in sequence every other. The tip end of the stabilizer angle 30c of the front contact group 30 is inserted into the contact receiving groove 22, and the stabilizer angle 40c of the inner contact group 40 is inserted into the contact receiving groove 23. . Moreover, the actuator 20 is provided with the pressurizing protrusion 24 which presses the FPC / FFC 50 on the opposite side to the part which applies a force with respect to the rotational motion center axis 21X.

In the said embodiment, the locking position of the actuator 20 is a position which is substantially parallel to the insulator 10 (position which closes the insertion guide surface 10S), and the actuator 20 is an insulator in the rotational motion end of a release direction. Go beyond the position orthogonal to. The pressurizing protrusion 24 is a position that elastically deforms the FPC / FFC 50 to the contact angles 30b and 40b to the maximum when the actuator 20 is rotated toward the locked position rather than the position orthogonal to the insulator 10 ( Shape).

An insertion protrusion 22a is formed in each contact accommodating groove 22, and a spring receiving portion 23a is formed in each contact accommodating groove 23. The spring receiving portion 23a has a circular cross-sectional shape substantially centered on the central axis of rotational movement 21X. The relationship between the insertion protrusion 22a and the stabilizer angle 30c of the front contact group 30 is that the actuator 20 rotates to the locked position so that the insertion protrusion 22a moves between the stabilizer angle 30c and the FPC / FFC. When entering between 50, the contact angle 30b and the contact angle 40b of the front and inner contact group are connected to the FPC / FFC 50 (creating contact pressure). That is, the stabilizer angle 30c is substantially a fixed angle.

On the other hand, the spring receiving portion 23a is inserted and fixed to the hook portion 40d formed at the tip of the stabilizer angle 40c of the inner contact group 40. The actuator 20 can be rotated about the rotational motion central axis 21X according to the engagement relationship between the hook portion 40d of the stabilizer angle 40c and the spring receiving portion 23a of the circular cross section.

Furthermore, the relationship between the stabilizer angle 40c (the hook portion 40d) of the spring receiving portion 23a and the inner contact group 40 causes the actuator 20 to rotate between the unlocked position and the locked position, When the FPC / FFC 50 is pressurized and deformed by the pressure protrusion 24, the stabilizer angle 40c is elastically deformed by the reaction force of the FPC / FFC 50, and the rotational movement force in the direction locked to the actuator 20 is reduced. In relation to That is, the stabilizer angle 40c is an elastic deformation angle.

At both ends of the insertion guide surface 10S of the insulator 10, suppression brackets 60, which are the features of the present embodiment, are provided. The suppression bracket 60 is provided with an FPC / FFC insertion space 60S (FIGS. 2 and 6) between the solder angle 61 soldered to the dummy pad DP on the substrate B and the insertion guide surface 10S. The impact prevention part 62 to form and the rotational motion shaft support part 63 which are abutted and supported by the one part of the rotational motion shaft 21 of the actuator 20 are provided. Since the restraining bracket 60 is fixed to the board | substrate B by the soldering angle 61, the unity with the insulator 10 is high, and the rotational axis support part 63 has the rotational axis of the actuator 20. Since it supports 21, the support strength of the rotating shaft 21 also raises.

The impact prevention part 62 has the width direction guide surface 62a which approaches the center side of the insulator 10 from the insertion guide surface 10S to the insertion opening 10T, and the width direction guide surface 62a. In the vicinity of the end part, it is provided with the up-down direction guide surface 62b which narrows the height of the FPC / FFC insertion space 60S from the insertion guide surface 10S toward the insertion opening 10T. That is, the width direction guide surface 62a of the left and right suppression bracket 60 is a guide surface which gradually approaches each other from the inlet part of the insertion guide surface 10S to the inside, and the up-down direction guide surface 62b is FPC. / FFC 50 is a guide surface reliably guiding the insertion guide surface 10S to the insertion opening 10T. The width direction guide surface 62a has a function of retracting the up and down direction guide surface 62a from the distal end portion of the insertion guide surface 10S, that is, inserts the FPC / FFC 50 into the FPC / FFC insertion space 60S. Before doing so, it also has a function of facilitating mounting on the insertion guide surface 10S. In addition, R processing is performed on the vertical guide surface 62b, and when the bending force acts on the FPC / FFC 50, it also plays a role as a bending guide for smoothly bending the FPC / FFC 50. Damage to the FFC 50 can be prevented.

The FPC / FFC connector of the present invention having the above configuration rotates the actuator 20 on the insulator 10 in the release direction about the rotational shafts 21 and 11 to open the insertion guide surface 10S, In this state, the FPC / FFC 50 is inserted between the insertion openings 10T (FPC / FFC insertion grooves 30s and 40s) from the insertion guide surface 10S (Figs. 6A and 7A). )). At this time, the widthwise guide surface 62a and the up-down guide surface 62b of the impact preventing portion 62 of the suppression bracket 60 facilitate the insertion of the FPC / FFC 50.

That is, when the corner part of the FPC / FFC 50 abuts the said width direction guide surface 62a on the left-right width direction guide surface 62a, the FPC / FFC50 is centered in the insertion guide surface 10S. Guides 62b to the left and right, and leads the FPC / FFC 50 to the insertion opening 10T easily. The thinner and smaller FPC / FFC 50 is more difficult to insert into the insertion opening 10T from the insertion guide surface 10S, but the guide of the width direction guide surface 62a and the vertical direction guide surface 62b is more difficult. According to this, it can be guided to the insertion opening 10T relatively simply. Moreover, the width direction guide surface 62a makes the FPC / FFC 50 stand out by exposing the insertion guide surface 10S in the suppression bracket 60 part. That is, it is easy to mount on the insertion guide surface 10S before inserting the FPC / FFC 50 into the FPC / FFC insertion space 60S.

After the FPC / FFC 50 is inserted and the actuator 20 is rotated to the locked position, the pressing protrusion 24 elastically deforms the FPC / FFC 50 to the contact angles 30b and 40b. The spring receiving portion 23a subjected to the reaction force elastically deforms the stabilizer angle 40c. The pressurizing protrusion 24 has the FPC / FFC 50 at the maximum contact angle 30b, at the position where the actuator 20 is rotated to the locked side rather than the position orthogonal to the insulator 10 (Fig. 6 (B)). Since the elastic deformation is performed on the 40b) side, the maximum elastic displacement of the stabilizer angle 40c also occurs at this time, and the actuator 20 is subjected to the rotational movement force in the locking direction (Fig. 6 (C)). Therefore, the actuator 20 can be rotated to the locked position with a preferable feeling of click (Fig. 6 (D)).

On the other hand, in the state where the actuator 20 is rotated to the locked position, the insertion protrusion 22a enters between the stabilizer angle 30c and the FPC / FFC, and the FPC / FFC 50 is brought into contact with the contact angle 30b and ( The pressure is applied to the 40b side, and the contact angles 30b and 40b are elastically deformed and connected to the FPC / FFC 50 (creating a connection pressure) (Fig. 7 (B)).

In the locking position, even if the bending force in the direction in which the actuator 20 is to be rotated in the release direction is applied to the FPC / FFC 50, both ends of the FPC / FFC 50 are impacted by the restraining bracket 60. Since it is primarily connected to the prevention portion 62, the bending force applied to the FPC / FFC 50 does not directly act on the actuator 20. Thus, inadvertent dropout of the FPC / FFC 50 can be prevented. In addition, since the FPC / FFC 50 is bent smoothly by the vertical guide surface 62b of the impact preventing portion 62 even when subjected to the above-described bending force, the FPC / FFC 50 is less likely to be damaged.

9 to 14 show another embodiment of the impact preventing portion 62 of the connector for FPC / FFC according to the present invention. This embodiment is characterized in that a tapered portion 62a 'is formed on the lower surface of the width direction guide surface 62a of the first embodiment, and other portions are common to the first embodiment. The tapered portions 62a 'extend from the solder angle 61 side to the vertical guide surface 62b side and from the inlet portion of the insertion guide surface 10S to the inside, respectively. The tapered part is inclined toward the lower surface of.

The shape of the width direction guide surface 62a when the taper part 62a 'is not formed in FIG. 14 is shown with the dashed line.

Thus, when the taper part 62a 'is formed in the lower surface of the width direction guide surface 62a, the FPC / FFC50 will be guided by the thickness of the width direction guide surface 62a of the impact prevention part 62, too. It can guide to the center of surface 10S, and can raise a guide force further.

In the suppression bracket 60, however, the most important guide function of the FPC / FFC 50 is the vertical guide surface 62b, and the width guide surface 62a may be omitted.

The structure of the front contact group 30 and the inner contact group 40 of the above embodiment showed the preferable example, and this invention provides the insertion guide surface 10S and the insertion opening 10T of the FPC / FFC50. It is applicable to the connector for FPC / FFC of the actuator rotary motion type which has.

As described above, according to the present invention, in the connector for FPC / FFC in which both ends of the FPC / FFC insertion guide surface of the insulator are provided with a suppression bracket having an impact preventing portion for preventing inadvertent detachment of the FPC / FFC, the FPC / FFC connector The connector for FPC / FFC of the actuator rotary motion type which improves insertion workability and is less likely to damage FPC / FFC can be obtained.

Claims (4)

An insulator having an insertion guide surface for inserting an FPC / FFC, and an insertion opening subsequent to the insertion guide surface, A plurality of contacts supported by the insulator and conductive to the land group of the substrate holding the insulator and to the FPC / FFC inserted in the insertion opening; An actuator which is supported by the insulator so as to be rotatable between the locking position and the releasing position, and which receives the contact pressure of the contact group and the FPC / FFC elastically deformed at the locking position; An impact formed on at least one of both ends of the FPC / FFC insertion guide surface of the insulator and forming an FPC / FFC insertion space between the solder angle to be soldered to the dummy pad on the substrate and the FPC / FFC insertion guide surface; In the connector for FPC / FFC which has a suppression bracket which has a prevention part, And a vertical guide surface for narrowing the height of the FPC / FFC insertion space from the inlet portion of the FPC / FFC insertion guide surface to the inside of the impact preventing portion of the suppression bracket. The method of claim 1, The restraint bracket is further provided with a widthwise guide surface approaching the central side of the insulator from the inlet portion of the FPC / FFC insertion guide surface to the inside thereof. The method according to claim 1 or 2, The suppressor bracket is further provided with a rotary shaft support for supporting at least a portion of the rotary motion support of the actuator. The method according to claim 3 or 4, The tapered portions inclined toward the lower surface of the vertical guide surface are formed on the lower surface of the widthwise guide surface from the soldering side to the vertical guide surface side and from the inlet portion of the FPC / FFC insertion guide surface to the inner side. FPC / FFC connector.