JP3742909B2 - Flat conductor connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector for connecting flat conductors such as a flexible flat cable (FFC) and a flexible printed circuit board (FPC).
[0002]
[Prior art]
Conventionally, this type of connector is generally of the FFC / FPC insertion type from the horizontal direction disclosed in JP-A-10-12331 and JP-A-10-33015. Japanese Patent Laid-Open No. 9-306609 discloses an insertion type from an oblique direction.
[0003]
[Problems to be solved by the invention]
Recently, however, a large number of parts are attached to the circuit board to which these connectors are attached, so there is no margin around the parts, and it is difficult to insert FFCs and FPCs from the horizontal or diagonal directions using conventional connectors. The placement position on the substrate is also limited.
[0004]
An object of the present invention is to provide a connector for a flat conductor having a greater degree of freedom in arrangement of board mounting.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a housing that houses a plurality of contact terminals, and an operation member having a frame portion that is rotatably held with respect to the housing and is capable of inserting and holding a flat conductor. the operating member extends on the opposite side of the flat conductor insertion side than the center of rotation, has a protrusion formed integrally with the lock spring portion of the arm shape having a spring characteristic which is formed in the left and right pair integrally with the housing The operation member can be stably held at a substantially vertical position with respect to the housing, and the operation member has a protrusion protruding from a side surface, and inward from the arms formed at both ends of the housing. A connector for a flat conductor configured to cooperate with a protrusion projecting toward the housing and to be locked in a horizontal position with respect to the housing so that a conductor exposed portion of the flat conductor is pressed against the contact terminal; Te, made it possible to ensure reliable contact pressure while allowing the insertion of the flat conductors from the vertical direction.
[0006]
A housing housing a plurality of contact terminals; and an operation member having a frame portion rotatably held with respect to the housing and capable of inserting and holding a flat conductor. The contact terminal can be stably held in the vertical position and can be locked in the horizontal position, and the contact terminal is connected to a conductor constituting the flat conductor on the lower arm, and the flat conductor of the operation member The upper arm has an operating member receiving portion that abuts on the side opposite to the insertion side, the electrical contact is located at the tip of the operating member receiving portion, and the lower tip of the operating member in the vertical state is the operating member receiving portion. The flat conductor and the operating member are sandwiched between the electrical contact and the operating member receiving portion with the operating member in the horizontal position with respect to the housing. Contact As flat conductors connector that is configured to, it made it possible to ensure reliable contact pressure while allowing the insertion of the flat conductors from the vertical direction.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
1 and 2 are external perspective views of the flat conductor connector 1 of the present invention. FIG. 1 shows a state in which the operating member 7 is locked in the horizontal position, and FIG. 2 shows that the operating member 7 is stabilized in the vertical position. Indicates the state.
[0009]
The flat conductor connector 1 includes a housing 3 in which a plurality of contact terminals 5 are stored at equal intervals, an operation member 7 having a frame portion 7a into which the flat conductor 15 is inserted so as to be rotatable in vertical and horizontal positions with respect to the housing 3. And left and right attachment terminals 9 and 11 for attachment to the circuit board.
[0010]
As shown in FIG. 3, the housing 3 has a plurality of terminal grooves 3a for accommodating a large number of contact terminals 5 (not shown in FIG. 3) in the center, and the shaft of the operating member 7 is rotated on the right side thereof. Shaft holding portions 3b and 3c for holding the movable member on the left side, and shaft holding portions 3d and 3e for similarly holding the shaft of the operating member 7 are provided on the left side. Have
[0011]
Further, in the vertical plane on the inner rear side of the arm portions 3p and 3q, the mounting arm 9b of the right mounting terminal 9 (see also FIG. 6) is received and held although it cannot be seen behind the other portions in FIG. An engagement hole 3f for receiving and holding the attachment arm 11b of the left attachment terminal 11 (see also FIG. 7) is formed. A partial view showing the position of the locking hole 3g is shown in FIG.
[0012]
Also, on the left and right side surfaces, mounting terminal receiving grooves 3m and 3n for receiving the stoppers 9c and 11c of the left and right mounting terminals 9 and 11 are formed in a groove shape.
[0013]
Further, a right lock spring portion 3h that acts to hold the operating member 7 in the vertical position and a right protrusion 3j that acts to hold the operating member 7 in the horizontal position are formed on the right side, and the left side is symmetrical to the right side. A left lock spring portion 3i and a left protrusion 3k are formed.
[0014]
As shown in FIG. 4, the operating member 7 is provided with a frame portion 7a for inserting and holding a flat conductor 15 (not shown) at the center thereof, and the tip of the flat conductor 15 abuts behind the frame portion 7a. Here, it has the contact part 7k (refer FIG. 9) which is not shown in figure. The contact part 7k does not necessarily need to be formed over the entire length of the frame part 7a.
[0015]
A recess 7m that receives an operation member receiving portion 5b of a contact terminal 5 described later is provided in front of the contact portion 7k.
[0016]
A right shaft portion 7c that engages with the shaft holding portions 3b and 3c of the housing 3 and a left shaft portion 7d that engages with the shaft holding portions 3d and 3e of the housing 3 are formed on the left and right rear sides.
[0017]
Further, on the rear side, a vertical projection 7g that acts in a stable manner in the vertical state of the operation member 7 in cooperation with the left and right lock spring portions 3h, 3i of the housing 3, and a chamfered portion 7h is formed on the vertical projection 7g. Has been. In FIG. 4, the vertical protrusion 7 g is integrally formed with the same shape over the entire length thereof, but may be divided and formed at positions corresponding to the left and right lock spring portions 3 h and 3 i of the housing 3.
[0018]
Further, in front of the left and right side surfaces, a right horizontal protrusion 7e and a left horizontal protrusion 7f are formed in cooperation with the left and right protrusions 3j and 3k of the housing 3 to act to maintain the horizontal position of the operation member 7. Yes.
[0019]
Then, the operation member 7 is in a substantially vertical state, and the left and right shaft portions 7 c and 7 d are engaged with the left and right shaft holding portions 3 b, 3 c, 3 d and 3 e of the housing 3 from above the housing 3. Assembled.
[0020]
The contact terminal 5 has a shape as shown in FIG. 5 and is fitted into the terminal groove 3a from the rear of the housing 3 in the direction indicated by the arrow A in FIG.
[0021]
The contact terminal 5 is formed of a conductive metal plate, and has an upper arm 5c having an operation member receiving portion 5b at a tip portion extending from the connecting portion 5a, and a lower arm 5e having a contact point 5d at the tip portion extending substantially in parallel therewith. And a board connecting portion 5f extending downward to the bottom portion, a retaining portion 5g that is fitted to the housing 3 to prevent it from coming off, and an abutting portion 5h that is positioned when fitting to the housing 3. Yes.
[0022]
The upper arm 5c and the lower arm 5e have a narrow shape in order to impart spring properties in the contact / separation direction.
[0023]
Right attachment terminals 9 and left mounting terminals 11 forms a indicates to shape in a perspective view, respectively, of FIG. 6 and FIG. 7.
[0024]
The right mounting terminal 9 shown in FIG. 6 and the left mounting terminal 11 shown in FIG. 7 are each composed of a solderable metal plate or the like, and base portions 9a and 11a used for fixing to the circuit board, the housing 3 The mounting arms 9b and 11b for assembling to the housing, the stoppers 9c and 11c for controlling the deformation of the housing 3, and the opening holes 9d and 11d for making the soldering to the circuit board more reliable are formed in an elongated hole shape. Yes.
[0025]
The left and right mounting terminals 9 and 11 are press-fitted into the locking holes 3f and 3g of the housing 3 from the front of the housing 3 in the directions of arrows B and C, respectively, as shown in FIG. Fixed to.
[0026]
At this time, the front ends of the stoppers 9c and 11c of the left and right mounting terminals 9 and 11 are also fitted in the left and right mounting terminal receiving grooves 3m and 3n formed on the side surface of the housing 3.
[0027]
Next, a lock mechanism at the horizontal position of the operation member 7 and a stabilization mechanism at the vertical position will be described.
[0028]
When the operation member 7 is rotated from the vertical position direction to the horizontal position direction with the shaft portions 7 c and 7 d as the rotation center, the left and right horizontal protrusions 7 e and 7 f formed on the operation member 7 are formed on the housing 3. Abuts against the left and right protrusions 3j, 3k, but if a stronger turning force is applied, a force that pushes the left and right arm portions 3p, 3q of the housing 3 outward is generated by the slope formed on the side surfaces of the protrusions 3j, 3k. Then, the horizontal protrusions 7e and 7f move over the protrusions 3j and 3k and rotate until they come into contact with the base portions 9a and 11a of the left and right attachment terminals 9 and 11, respectively.
[0029]
From this state, in order to return the operation member 7 to the vertical position direction, the horizontal protrusions 7e and 7f must get over the protrusions 3j and 3k from the opposite direction. However, in the state where the connector 1 is assembled to the circuit board, the operation member It is difficult to apply a turning force in the vertical direction to the operating member 7 because the gap between the operation member 7 and the circuit board is narrow, and it is difficult to manually operate.
[0030]
Note that when the horizontal protrusions 7e and 7f get over the protrusions 3j and 3k, the left and right arm portions 3p and 3q of the housing 3 bend outward, but the amount of left and right bends becomes uneven. In order to prevent accidents such as stress concentration on a specific part and destruction of the housing 3, when the deflection amount of the left and right arm portions 3p, 3q reaches a specified amount, the stopper 9c or 11c of the mounting terminal 9 or 11 is The abutment terminal receiving groove 3m or 3n of the housing 3 is brought into contact with the bottom of the housing 3 so that the bending amount does not exceed a prescribed amount.
[0031]
FIG. 8 is a cross-sectional view taken along the line II in FIG. 2 and will be described with reference to the stabilization mechanism in the vertical position of the operating member 7.
[0032]
In FIG. 8, the portions described so far are assigned the same reference numerals and description thereof is omitted, and the shaft holding portion 3 e of the housing 3 and the shaft 7 d of the operation member 7 are made visible.
[0033]
Further, the following description is performed only for the left part of the connector 1, and performs a similar operation at the right side component similar configuration.
[0034]
FIG. 8A shows a state in which the operating member 7 is stable in a vertical position with respect to the housing 3.
[0035]
The lock spring portion 3i of the housing 3 is formed in an arm shape as shown in the figure, and an inclined portion 8a is formed in the vicinity of the tip thereof.
[0036]
The operation member 7 is formed with a shoulder portion 8 b that contacts the upper surface of the housing 3.
[0037]
The shaft 7d of the operating member 7 is rotatably held by a shaft holding portion 3e of the housing 3 and a shaft holding portion 3d (not shown).
[0038]
The chamfered portion 7 h formed on the vertical protrusion 7 g of the operation member 7 abuts against the inclined portion 8 a formed on the lock spring portion 3 i of the housing 3, and resists the rotational force that the operation member 7 rotates counterclockwise. The shoulder portion 8b of the operation member 7 is in contact with the upper surface of the housing 3 so that the operation member 7 does not rotate clockwise, and the operation member 7 is kept stable in the vertical position.
[0039]
FIG. 8B shows a state where the operation member 7 is slightly rotated counterclockwise from the vertical position.
[0040]
When turning force is applied to the operation member 7 in the counterclockwise direction from the state of FIG. 8A, a force that pushes the lock spring portion 3i downward is generated at the contact portion between the chamfered portion 7h and the inclined portion 8a. As shown in (b), the lock spring 3i is bent, and the operation member 7 can be rotated counterclockwise.
[0041]
8B, when the chamfered portion 7h and the inclined portion 8a start to come into contact with each other when the operating member 7 is rotated clockwise by turning the operating member 7 in the clockwise direction, the force that attempts to return to the upper side of the lock spring portion 3i. Thus, the clockwise turning force is urged to the operating member 7, and the operating member 7 is kept stable in the vertical position.
[0042]
Note that, when the operation member 7 is close to the horizontal state, the lock spring portion 3 i does not have any action on the operation member 7.
[0043]
FIG. 9 is a cross-sectional view of the roll shown in FIG. 2, and will be described with reference to the attached state of the contact terminal 5 to the housing 3, its function, and the flat conductor mounting procedure.
[0044]
In FIG. 9, the parts described so far are denoted by the same reference numerals and the description thereof is omitted.
[0045]
9A shows a state in which the operating member 7 is stable in the vertical position with respect to the housing 3, and FIG. 9B shows a state in which the operating member 7 is locked in the horizontal position with respect to the housing 3. Show.
[0046]
9A, as described above, the contact terminal 5 is inserted into the terminal groove 3a of the housing 3 from the right side of the figure to the position where the abutting portion 5h contacts the housing 3, and at that time, the retaining portion 5g. Deforms the housing 3 so that the contact terminals 5 are fixed to the housing 3.
[0047]
Further, the operation member receiving portion 5 b of the contact terminal 5 comes into contact with the bottom of the depression 7 m of the operation member 7.
[0048]
Then, the flat conductor 15 is inserted into the frame portion 7a of the operation member 7 with the contact portion 15a on the left side in the drawing so that the tip thereof is in contact with the contact portion 7k of the operation member 7 from above. .
[0049]
When the operation member 7 is rotated counterclockwise in the state where the flat conductor 15 is inserted and is brought into the horizontal state shown in FIG. 9B, the contact portion 15 a of the flat conductor 15 is connected to the lower arm of the contact terminal 5. The contact 5d is brought into contact with the contact 5d in a bent state to realize electrical connection, and the flat conductor 15 and the operation member 7 are held in a stacked state.
[0050]
【The invention's effect】
The flat conductor can be inserted when the operation member is vertical, and the flat conductor and the contact terminal are electrically connected while holding the flat conductor firmly in the horizontal state. A flat conductor connector can be obtained.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a flat conductor connector according to an embodiment of the present invention, showing a state in which an operation member is locked in a horizontal position.
2 is an external perspective view of a flat conductor connector in the same embodiment as FIG. 1, showing a state in which an operation member is stable in a vertical position. FIG.
3A is an external perspective view, and FIG. 3B is a partial front view near the left end of the housing of the flat conductor connector shown in FIG. 1;
4 is an external perspective view of an operation member of the flat conductor connector shown in FIG. 1. FIG.
5 is a perspective view of a contact terminal used in the flat conductor connector shown in FIG. 1. FIG.
6 is a perspective view of a right mounting terminal used in the flat conductor connector shown in FIG. 1. FIG.
7 is a perspective view of a left mounting terminal used in the flat conductor connector shown in FIG. 1. FIG.
8 is a cross-sectional view taken along the line II of FIG. 2, in which (a) shows a state where the operating member is in a vertical position, and (b) shows a state where the operating member is in an inclined position.
9A and 9B are cross-sectional views of FIG. 2, in which FIG. 9A shows a state where the operating member is in a vertical position, and FIG. 9B shows a state where the operating member is in a horizontal position.
[Explanation of symbols]
1 Flat conductor connector, 3 housing, 3a terminal groove, 3b, 3c, 3d, 3e shaft holding part, 3f, 3g locking hole, 3h, 3i lock spring part, 3j, 3k protrusion, 3m, 3n mounting terminal receiving groove 3p, 3q arm part, 5 contact terminal, 5a connection part, 5b operation member receiving part, 5c upper arm, 5d contact, 5e lower arm, 5f board connection part, 5g retaining part, 5h butting part, 7 operation member 7a Frame portion, 7c, 7d Shaft portion, 7e, 7f Horizontal protrusion, 7g Vertical protrusion, 7h Chamfered portion, 7k Abutting portion, 7m Depression, 8a Inclined portion, 8b Shoulder portion, 9 Right mounting terminal, 9a, 11a Base part, 9b, 11b mounting arm, 9c, 11c stopper, 9d, 11d opening hole, 11 left mounting terminal, 15 flat conductor, 15a contact part.

Claims (2)

A housing housing a plurality of contact terminals, and an operation member having a frame portion rotatably held with respect to the housing and capable of inserting and holding a flat conductor;
The operating member extends on the opposite side of the flat conductor insertion side than the center of rotation, has a protrusion formed integrally with the lock spring portion of the arm shape having a spring characteristic which is formed in the left and right pair integrally with the housing And can be stably held in a substantially vertical position with respect to the housing,
The operating member has a protrusion protruding from a side surface, and cooperates with a protrusion protruding inward from an arm formed at both ends of the housing, and can be locked in a horizontal position with respect to the housing. A flat conductor connector, wherein the exposed conductor portion of the flat conductor is pressed against the contact terminal. A housing housing a plurality of contact terminals, and an operation member having a frame portion rotatably held with respect to the housing and capable of inserting and holding a flat conductor;
The operation member can be stably held in a vertical position with respect to the housing, and can be locked in a horizontal position.
The contact terminal includes an electric contact connected to the conductors constituting the flat conductor on the lower arm, the operating member receiving portion that abuts on the opposite side a flat conductor insertion side of the operating member to the upper arm, the The electrical contact is located at the tip of the operation member receiving portion, the lower tip in the vertical state of the operation member is located between the operation member receiving portion and the electrical contact, and the operation member is positioned horizontally with respect to the housing. A flat conductor connector, wherein the flat conductor and the operation member are sandwiched between the electric contact and the operation member receiving portion and are electrically connected in a state of being in a position.

Images