JPH0559775U - Flat cable connector - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object to obtain a flexible printed board that can be easily attached to and detached from a flat cable connector and can be securely pressure-welded. A flexible printed board 25 is inserted into a flat cable connector 30 in which a housing 33 is provided with a large number of contacts 32, and the flexible printed board 25 is connected to the contacts 32 by a removable cover 34. Insertion direction of
With the press-fitting direction of the cover 34 as the opposite direction, the cover 34
The attachment / detachment operation is simplified and the overall shape of the connector is reduced. Further, the terminal portion 43 and the holding piece 47 are arranged in front of and behind the housing 33 so that the connector 30 can be attached to the printed board 26 at an arbitrary angle, and the bending angle when the flexible printed board 25 is inserted. Loosen to prevent damage. Pressure contact piece 4 of flexible printed board 25 and contact 32
The contact with 1 is a strong fit, and the connection is sufficient.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flat cable connector in which the operation of attaching and detaching the flat cable is easy, and the damage caused by bending the flat cable is prevented as much as possible.

[0002]

[Prior Art]

 As shown in FIGS. 7 and 8, the flat cable connector 10 for using the flat cable for jumping printed wiring or connecting to another circuit board is provided on one side of the printed circuit board 26 with a housing 13. The terminal portion 23 of the contact 12 protruding from the rear surface of the housing and the holding piece 27 protruding from the side surface of the housing 13 are fixedly attached with solder 28 or the like, and the flexible print plate insertion hole (hereinafter referred to as FPC) on the front surface of the housing 13 is attached. A flexible printed board (hereinafter referred to as FPC) 25 is inserted from an insertion hole) 15, and then the cover 14 is press-fitted to press-contact the press-contacting pieces 21 and 22 of the contact 12.

In the conventional flat cable connector 10, however, first, the cover 14 is pulled out from the FPC insertion hole 15 until it engages the retaining projection 17 against the retaining projection 16. Then, the end portion of the FPC 25 is slid into the notch 18 of the cover 14 and the insertion plate portion 19 to be inserted. Then, the cover 14 is pressed into the FPC insertion hole 15 in the same direction as the FPC 25. Then, the contact 12 is inserted between the pressure contact piece 21 and the pressure contact piece 22, and the upper surface of the FPC 25 is press-fitted and connected to the lower surface of the pressure contact piece 21. At this time, the pressure contact piece 21 is slightly curved toward the gap 24 on the upper surface. In this way, the FPC 25 and the pressure contact piece 21 are connected and held by the holding force of the pressure contact pieces 21 and 22 of the contact 12.

[0004]

[Problems to be solved by the device]

 As described above, in the conventional flat cable connector 10, since the inserting direction of the FPC 25 is the same as the press-fitting direction of the cover 14, the handles must be formed so as to project at both non-overlapping end portions of the cover 14 and the FPC 25. As a result, it is difficult to attach and remove the cover 14, and the shape becomes large. Further, since it is flush with the bottom surface of the housing 13 and the terminal portion 23 of the contact 12 extends and projects in the direction opposite to the FPC insertion hole 15, when inserting the FPC 25 in the FPC insertion hole 15, It may be bent by 80 degrees or more, and the FPC 25 was damaged. Furthermore, since there is a gap 24 on the press contact piece 21, the contact between the FPC 25 and the press contact piece 21 is only the press contact due to the elasticity of the contact 12, and there is a problem that the connection is somewhat insufficient.

An object of the present invention is to obtain a flexible printed board which can be easily attached / detached to / from a flat cable connector, and which can be securely pressed.

[0006]

[Means for Solving the Problems]

 The present invention is a connector in which a flexible printed board 25 is inserted into a flat cable connector 30 in which a housing 33 is provided with a large number of contacts 32, and the connector 32 is connected to the contacts 32 by a removable cover 34. 33. A flexible printed board insertion hole 35 is formed on one side surface of the housing 33, a terminal portion 43 of the contact 32 is projected, and a cover press-fitting hole 51 is formed on the other side surface of the housing 33. The flat cable connector is characterized in that a holding piece 47 for attachment to the printed circuit board 26 is provided in the.

[0007]

[Action]

 The flat cable connector 30 is set at an end portion of the printed board 26 at an arbitrary angle by the terminal portion 43, the chamfered portion 53 of the housing 33, and the holding portion 49 of the holding piece 47, and is fixed by the solder 28. In such a configuration, the cover 34 is pulled out from the back of the housing 33. In this state, insert the FPC 25 into the FPC insertion hole 35 on the front surface of the housing 33 until the tip of the FPC 25 contacts the stopper 55. At this time, the printed wiring surface on the lower surface of the FPC 25 is in light contact with the pressure contact piece 41 of the contact 32. Next, when the insertion plate portion 39 of the cover 34 is press-fitted between the pressure contact piece 41 and the holding piece 42, the holding piece 42 is in contact with and fixed to the bottom plate portion 52 of the housing 33. Pushed upwards. Therefore, the FPC 25 is forcibly pressed between the pressure contact piece 41 and the inner wall surface of the housing 33, and the FPC 25 and the pressure contact piece 41 are in a strong fitting state.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 30 is a flat cable connector of the present invention. The flat cable connector 30 comprises a housing 33, a contact 32, a cover 34 and a holding piece 47. The housing 33 is provided with one horizontal FPC insertion hole 35 on the front side, a plurality of terminal projecting holes 50 are provided in a row below the FPC insertion hole 35, and a cover is provided on the rear surface of the housing 33. A press fit hole 51 is provided.

As shown in FIG. 4A, the contact 32 is bent into a substantially S-shape by the pressure contact piece 41, the holding piece 42, and the holding piece 46, and the terminal portion 43 is provided on the opposite side of the pressure contact piece 41. Are formed to project. The contact 32 is inserted from the cover press-fitting hole 51 side of the housing 33, and the bottom plate portion 52 of the housing 33 is clamped and fixed by the holding piece 42 and the holding piece 46, and the terminal portion 43 is projected. It projects from the hole 50 to the outside. The holding piece 47 shown in FIG. 4B is bent in a dogleg shape, and the press-fitting portions 48 are press-fitted into holes (not shown) on both sides of the bottom surface of the housing 33, so that the holding portions 49 are formed. It projects downward. As a result, the flat cable connector 30 is fixed by the solder 28 with the lower surface of the terminal portion 43, the chamfered portion 53 of the housing 33, and the holding portion 49 of the holding piece 47 being inclined about 45 degrees with respect to the printed circuit board 26. It

Elastic locking pieces 40 are integrally provided on both sides of the cover 34, and two protrusions 37 and 54 are integrally provided outside the locking pieces 40 in the insertion direction. It has been done. Elastic stoppers 36 having elasticity for locking the locking pieces 40 are integrally provided on both sides of the housing 33.

As described above, the flat cable connector 30 is set on one side surface of the printed circuit board 26 at an angle of about 45 degrees by the terminal portion 43, the chamfered portion 53 of the housing 33, and the holding portion 49 of the holding piece 47. And is fixed with solder 28 or the like. In such a configuration, when the cover 34 is pulled out from the back portion of the housing 33, the protrusion 54 of the locking piece 40 is disengaged while expanding the elastic stopper 36, and when it is further pulled out, the protrusion 37 causes the elastic stopper 36. Abuts and stops.

In this state, the FPC 25 is inserted into the FPC insertion hole 35 on the front surface of the housing 33 until the tip of the FPC 25 contacts the stopper 55. At this time, the print wiring surface on the lower surface of the FPC 25 is lightly contacted with the pressure contact piece 41 of the contact 32. Next, when the insertion plate portion 39 of the cover 34 is press-fitted between the pressure contact piece 41 and the holding piece 42, since the holding piece 42 is fixed by the bottom plate portion 52 of the housing 33, only the pressure contact piece 41 is attached. Pushed upwards. Therefore, the FPC 25 is forcibly pressed between the pressure contact piece 41 and the lower surface of the upper plate of the housing 33, so that the FPC 25 and the pressure contact piece 41 are in a strongly fitted state.

In the above embodiment, the case where the contacts 32 are arranged in five rows has been described, but the present invention is not limited to this example. Further, in the above-described embodiment, the case where the housing 33 is inclined and fixed at about 45 degrees has been described. However, if the lengths of the terminal portion 43 and the holding piece 47 are appropriately set, the mounting angle is not limited to this example. It can be set freely.

[0014]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. (1) Since the insertion direction of the flexible printed board 25 is opposite to the press-fitting direction of the cover 34, the cover 34 and the flexible printed board 25 do not overlap with each other, and the attachment / detachment operation of the cover 34 and the flexible printed board 25 is easy. At the same time, the overall shape of the connector becomes smaller. (2) Since the connector 30 can be attached to the printed circuit board 26 at an angle, the mounting angle can be set arbitrarily, and the bending angle when the flexible printed board 25 is inserted into the flexible printed board insertion hole 35. The flexible printed board 25 is less likely to be damaged. (3) Since the contact between the flexible printed board 25 and the pressure contact piece 41 of the contact 32 is strongly fitted, a sufficient connection is achieved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a flat cable connector according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a bottom view of FIG.

FIG. 4 is a perspective view of a contact and a holding piece in FIG.

5 is a side view of FIG. 1. FIG.

FIG. 6 is a partially cutaway plan view of FIG. 1.

FIG. 7 is a cross-sectional view showing a conventional flat cable connector.

8 is a partially cutaway plan view of FIG. 7. FIG.

[Explanation of symbols]

10 ... Conventional flat cable connector, 12 ... Contact, 13 ... Housing, 14 ... Cover, 15 ... Flexible printed board (FPC) insertion hole, 16 ... Locking protrusion,
17 ... retaining stopper, 18 ... notch, 19 ... insertion plate portion, 20
... Locking piece, 21 ... Pressure contact piece, 22 ... Pressure contact piece, 23 ... Terminal part, 24 ... Gap, 25 ... Flexible printed board (FP
C), 26 ... Printed circuit board, 27 ... Holding piece, 28 ... Solder, 30 ... Flat cable connector of the present invention, 32 ...
Contact, 33 ... Housing, 34 ... Cover, 35 ...
Flexible printed board (FPC) insertion hole, 36 ... Elastic stopper, 37 ... Projection portion, 39 ... Insertion plate portion, 40 ... Locking piece, 41 ... Pressure contact piece, 42 ... Holding piece, 43 ... Terminal portion, 46
... Clamping piece, 47 ... Holding piece, 48 ... Press-fitting section, 49 ... Holding section, 50 ... Terminal projecting hole, 51 ... Cover press-fitting hole, 52 ... Bottom plate section, 53 ... Chamfer section, 54 ... Projection section, 55 ... Stopper 5
5.

Claims (3)

[Scope of utility model registration request] 1. A housing 33 having a large number of contacts 32
In the connector in which the flexible printed board 25 is inserted into the flat cable connector 30 provided with, and is connected to the contact 32 by the detachable cover 34, the flexible printed board insertion hole 35 is formed on one side surface of the housing 33. While forming the terminal portion 43 of the contact 32,
A cover press-fitting hole 51 is formed on the other side surface, and a holding piece 4 for mounting on the printed circuit board 26 is provided near the other side surface.
7. A flat cable connector characterized by comprising 7. 2. The flexible printed board 25 is strongly fitted between the inner wall surface of the housing 33 and the pressure contact piece 41 of the contact 32 by pressing the pressure contact piece 41 of the contact 32 with the insertion plate portion 39 of the cover 34. The flat cable connector according to claim 1, which is connected. 3. A holding piece 47 is projected downward from the bottom of the housing 33, and the flat cable connector 30 is attached to the printed circuit board by the terminal portion 43 of the contact 32, the chamfered portion 53 of the housing 33 and the holding portion 49 of the holding piece 47. 26
The flat cable connector according to claim 1 or 2, wherein the flat cable connector is attached at an angle with respect to the flat cable connector.