JPS6333336Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connector, and uses a movable molded body without metal parts to connect an external connection line with one touch with ease of operation, as opposed to a fixed molded body with contact pins. An object of the present invention is to provide a connector which can be attached without damaging a fixed mold body and which can be easily fixed to a board by soldering.

Some conventional connectors use a movable molded body to attach an external connection wire to a fixed molded body with a single touch. In this case, the protruding lower end of the contact pin embedded in the fixed mold body is inserted into another board and fixed by soldering, and a metal cylindrical body is fitted and fixed in advance into the through hole of the movable mold body. An external connection wire is soldered to one end of the cylindrical body, and then the other end of the cylindrical body of the movable mold body is elastically fitted to the upper end protrusion of the contact pin of the fixed mold body to connect both molds. The body was being installed.

However, according to this method, since the cylindrical body is interposed between the contact pin and the connecting wire, the number of parts of the cylindrical body increases, and the work of soldering the connecting wire to the cylindrical body is troublesome and costly. The disadvantage was that it was expensive.

The present invention eliminates the above-mentioned drawbacks, and an embodiment thereof will be described below with reference to the drawings.

Figures 1A to 1D are a plan view, a front view, a bottom view, a side view, and a second embodiment of the connector according to the present invention, respectively.
Figures A to D are plan views, partially cutaway front views, bottom views, and side views of the fixed mold before assembling the contact pins that make up the connector, and Figures A to D are movable parts that make up the connector, respectively. They are a plan view, a partially cutaway front view, a bottom view, and a side view of the mold. In the figure, a connector 1 is formed by assembling a separate fixed mold 2 and a movable mold 3.

The fixed mold body 2 is formed by implanting a plurality of contact pins 5 shown in FIG. 4 into a resin mold body 4 shown in FIGS. 4a (having a plurality of equally spaced recesses 4b with the recess 4a at the bottom) lower end leg 4
c, and a U-shaped locking portion 6 (having a beam portion 6a and an opening portion 6b) is integrally formed at each end via a notch groove 4d.

The contact pins 5 each have a fourth metal plate of a predetermined thickness.
It is formed by pressing into the shape shown in the figure, and has one terminal portion 5c at the lower side of a base portion 5b provided with a pair of contact pin portions 5a. Each contact pin portion 5a has a dogleg-shaped portion 7 having a mutually symmetrical shape at its upper end,
The apex of the doglegged portion 7 is a contact portion 7a, and one side on the tip end side of the doglegged portion 7 is a pressing side portion 7b. The contact pins 5 are attached in the recesses 4a of the mold body 4 by being press-fitted into the respective recesses 4b of the base 5b, and at this time, the terminal portions 5c protrude from the lower surface of the mold body 4, and the contact pin portions 5a are inserted into the recesses 4a. It will be stored. The fixed mold 2 is thus completed. Incidentally, since the plurality of contact pins 5 are sequentially attached in opposite left and right directions, the respective terminal portions 5c are arranged in a staggered manner as shown in FIG. The soldering at the time will not interfere with each other.

The movable mold 3, as shown in FIGS. 3A to 3D,
For example, it is made of hard resin containing 30% glass, and is provided with a through groove 3b in the center of the rectangular parallelepiped mold body 3a and a flange 3c at the top, and one engaging convex part 3d and one on each end of the body 3a. A pair of engagement protrusions 3e
can be established. The portions of the flange portion 3c at both longitudinal ends of the movable mold 3 protrude outward from both longitudinal ends of the fixed mold 2, and as described later, the portions of the collar portion 3c at both longitudinal ends of the movable mold 3 protrude outward from the upper ends of the fixed mold 2. It is used as an operation part to guess. A plurality of guide holes 8 are provided at equal pitches on both inner sides of the through groove 3b, and each guide hole 8 is formed in a pair of guide hole halves 8a symmetrically with the groove 3b in between, as shown in FIG. From the top, the upper straight guide part 8b, the tapered guide part 8c,
A lower guide portion 8d is formed. A separation wall 14 is formed between adjacent guide holes 8 (guide hole halves 8a). This separation wall 14 partitions the contact pin portions 5a and doglegged portions 7 of adjacent contact pins 5 and keeps them separated, thereby preventing unnecessary contact.

Next, each of the molds 2, 3 and FIGS. 4 and 5
The installation of the flexible printed circuit board 9 shown in the figure will be explained. First, fix the fixed mold 2 in Figure 1A~
As shown in D, the terminal portion 5c of each contact pin 5 is inserted into and protruded into another substrate 10 until the leg portion 4c comes into contact with the substrate 10, and each protruding portion is soldered to the lower surface of the substrate 10 to secure conductivity. .

Since the terminal portions 5c are arranged in two rows in a staggered manner, the spacing between adjacent terminal portions in each row is twice that of the arrangement in which the terminal portions are arranged in a single row. are reliably formed in a mutually independent state, eliminating soldering defects. Further, regarding the substrate 10, there is more space between the wiring patterns, making it easier to form printed wiring.

The process of attaching the fixed mold 2 to the substrate 10 is not limited to this, and as described later, the process of attaching the fixed mold 2 to the substrate 10 is not limited to this.
Alternatively, the fixed mold 2 may be attached to the substrate 10 after the attachment of the flexible printed circuit board 9 is completed.

Next, as shown in FIG. 4, the movable mold 3 is
The mold body 3a is placed in the recess 4 with respect to the fixed mold 2.
When the mold body 3a is inserted and attached, the pair of engagement protrusions 3c at both ends of the mold body 3a reciprocate outwardly of the locking part 6, and the rear beam part 6a rides on the inside of the beam part 6a. Movable mold 3 that engages with the lower surface
prevents it from coming off upwards. At this time, as shown in FIG. 4, the contact pins 5 are relatively fitted into the respective guide holes 8, and the upper end of the pressing side 7b of the contact pin 5 abuts the lower end of the tapered guide part 8c, so that the movable mold 3 is in this position. Further downward displacement is restricted, and it is eventually held at the position shown in FIG.

Here, as shown in FIGS. 1B and 1D and FIG. Furthermore, each contact pin 5 is inserted loosely between the pair of contact portions 7a and comes into contact with the bottom of the recess 4a, as shown in FIG.

Next, when the movable mold 3 is pressed and slid downward in FIG. 4 by placing fingertips on both ends of the flange portion 3c, the pair of contact pin portions 5a relatively touch the upper ends of the pressing sides 7b. It moves upward while being guided by a pair of tapered guide parts 8c,
The shape of the doglegged portion 7 remains the same, and each contact pin portion 5 is
It is elastically displaced inward using the root part as a fulcrum, and the fifth
As shown by the two-dot chain line in the figure, each contact portion 7a is pressed against both surfaces of the substrate 9. When the movable mold 3 is further pushed down, the upper end of each pressing side portion 7b is relatively guided further by the tapered guide portion 8c and moves to the upper linear guide portion 8b, and the movable mold main body 3a
comes into contact with the bottom of the recess 4a and stops. However, during this time, each contact portion 7a is fixed at a position where it is in pressure contact with both surfaces of the substrate 9, so each pressing side portion 7b is in contact with the contact portion 7a.
As shown in FIG. 5, the contact portion 7a is elastically rotated inward by a distance x using the fulcrum as a fulcrum, thereby imparting an elastic force to the contact portion 7a, thereby strongly clamping and holding the substrate 9.
Furthermore, as shown in FIG. 4 of the movable mold 3, when the movable mold 3 moves downward, each of the engaging convex portions 3d at both ends of the mold body 3a rides on the inside of the beam portion 6a of the locking portion 6 with outward reciprocating elastic displacement of the locking portion 6. It engages with the lower surface of the raised rear beam portion 6a, and the movable mold 3 is prevented from coming off above the position shown in FIG.

Thus, a plurality of double-sided prints (not shown) on the substrate 9 are connected to the substrate 10 via a plurality of contact pins 5.
Conducted by multiple prints on the bottom surface. Note that the doglegged portion 7 is always located within the guide hole 8 and is elastically displaced within the guide hole 8, so that it comes into pressure contact with a predetermined portion of the inserted substrate 9.

Next, the operation for removing the flexible printed circuit board 9 will be explained. First, each of the locking parts 6 of the fixed mold 2 is forcibly and elastically displaced outward, and the engaging convex part 3 is
d and the beam portion 6a, and in this state, when the movable mold 3 is held with both ends of the F flange portion 3c between fingertips and pulled upward, the upper ends of the respective pressing sides 7b of the contact pins 5 are moved relative to each other. upper linear guide part 8b,
The tapered guide portion 8c gradually moves halfway and returns to elastic displacement outward by the above-mentioned dimension x. Next, when the movable mold 3 is further pulled upward (at this time, each of the locking portions 6 is elastically displaced inward and restored), each contact pin portion 5a is then elastically displaced outward using its base as a fulcrum. After returning, the upper end of each pressing side portion 7b returns to correspond to the lower end of the chipper guide portion 8c, and at the same time, each pair of engagement convex portions 3e at both ends of the movable mold body 3a returns to engage with the lower surface of the beam portion 6a, and the movable mold body The upward displacement of 3 is stopped. Thus, the pair of abutting portions 7a of the contact pins 5 return to the position shown in FIG. 4 and release the pressure contact with the substrate 9. Therefore, by pulling the board 9 upward, it can be removed without any resistance.

In addition, in order to remove the movable mold 3 from the fixed mold 2, each locking part 6 is elastically deformed outward again to release the engagement between each pair of engagement projections 3e and beam parts 6a, and then the upper Just pull it out and pull it out.

Movement of the movable mold 3 in the longitudinal direction is regulated by U-shaped locking portions 6 at both ends of the fixed mold 2.

Although the flexible printed circuit board 9 of the above embodiment was relatively thin, FIG. 6 shows a state in which a relatively thick flexible printed circuit board 11 is attached. In this case, the contact portion 7 of the contact pin 5
Since the pressure contact position of a with respect to the substrate 11 is further outward compared to the case of FIG. 5, each pressing side 7
The amount of inward rotational displacement of b increases, and the substrate 11 is clamped with stronger elastic force. Therefore, it is possible to clamp the substrates 9 and 11 of various thicknesses with an appropriate clamping force by the elastic rotational displacement function of the pressing side portion 7b, but in reality, the thickness of the substrates 9 and 11 is It ranges from 0.08 to 0.3 mm.

Further, the contact pin 5 has a pair of contact pin portions 5.
e, which clamps the substrates 9 and 11, but the contact pin 12 is not limited to this and may have a contact pin portion 12a and an abutment pin portion 12b as shown in FIG. 7. In this case, the guide holes of the movable mold 3 are the guide hole half 8a on the contact pin portion 12a side and the straight guide hole half 8a on the opposite side.
e, the substrate 11 in FIG.
When the movable mold 3 is pushed down while being inserted into the bottom of the recess 4a, the contact pin portion 12a is elastically displaced inward, and the substrate 11 is held between the contact portion 13a and the contact pin portion 12b. Press down.

Further, the flexible printed circuit boards 9 and 11 are not limited to this shape, and may be wires as long as the through groove 3b has a substantially square cross section.

As mentioned above, according to the connector of the present invention,
By moving the movable molded body, it is possible to easily insert and extract the connecting wire in a loose manner without requiring any insertion/extraction force. The movable mold is easy to move because it is provided with a flange that is used to operate the movable mold.Furthermore, the flange protrudes outward from both longitudinal ends of the fixed mold, making it easy for fingertips to get caught. Therefore, it is possible to connect and disconnect the connecting wires with good operability.
Moreover, since the terminal parts are arranged in a staggered manner, the distance between adjacent terminal parts is widened, and there is no risk of adjacent soldered parts interfering with each other when each terminal part is soldered and fixed to the board. It is possible to improve the reliability of mounting on the board, use a board with plenty of space between wiring patterns, and eliminate the need for metal fittings to relay connection wires and contact pins to the movable mold, reducing the number of parts. Displacement in the longitudinal direction of the movable mold body can be regulated by beams formed on the mold body of the fixed mold body, and furthermore, the engaging protrusions at both ends of the movable mold body engage with the beams. Further movement of the movable molded body can be restricted, and the movable molded body can be prevented from coming off from the fixed molded body during a disconnection operation, and the prevention of coming off can be easily realized without using any special members. Furthermore, the guide hole and the separation wall can reliably maintain adjacent contact parts in a separated state, prevent adjacent contact parts from coming into contact with each other unnecessarily, and ensure that the contact parts are connected to the predetermined position of the connection line. It has the advantage of being able to guarantee contact with the parts.

[Brief explanation of the drawing]

1A to 1D are a plan view, a front view, a bottom view, a side view, and a second view of one embodiment of a connector according to the present invention, respectively.
Figures A to D are respectively a plan view, a partially cutaway front view, a bottom view, and a side view of the fixed mold constituting the connector before the contact pins are attached, Figures A to D are respectively a plan view, a partially cutaway front view, a bottom view, and a side view of the movable mold constituting the connector, Figures 4 and 5 are vertical cross-sectional side views showing the states of the connector before and after the flexible printed circuit board is attached, Figure 6 is a vertical cross-sectional side view showing the state of another flexible printed circuit board attached to the connector, and Figure 7 is a vertical cross-sectional side view showing the state of another embodiment of the connector before the flexible printed circuit board is attached. 1... Connector, 2... Fixed mold, 3...
Movable mold, 3a ... Movable mold body, 3b
. . through groove, 3c . . flange portion, 3d, 3e . . engagement protrusion portion, 4 . . fixed mold body, 5, 12 . . contact pin, 5a, 12a . . contact pin portion, 6
... locking portion, 7... L-shaped portion, 7a, 13a...
...contact portion, 7b...pressure edge portion, 8...guide hole,
8c: tapered guide portion; 8, 11: flexible printed circuit board; 10: board; 12b: contact pin portion; 14: separation wall.

Claims (1)

[Scope of utility model registration request] A fixed mold body consisting of a mold body and a plurality of contact pins fixed to the mold body, the upper part of the contact pin protruding as a contact part, the lower part of the contact pin protruding as a terminal part, and the fixed mold body is attached to a substrate by the terminal part. and a movable mold body having a through groove into which the connection wire is inserted, and a movable mold body attached to the fixed mold so as to be movable in the insertion/removal direction of the connection wire. The connector is configured such that the contact portion is elastically deformed by moving the movable mold body in a direction in which the connection wire is removed, and the contact portion is restored to its original state by moving the movable mold body in a direction in which the connection wire is removed. The movable mold body has beam parts at both ends in the longitudinal direction of the mold body, and the terminal parts are arranged in a staggered manner, and the movable mold body has beam parts at both ends in the longitudinal direction, and the movable mold body has beam parts at both ends in the longitudinal direction. A flange portion formed to protrude toward the direction and used as an operating portion, and an engaging convex portion that engages with the beam portion, and are separated from each other by a separation wall on the inner wall of the through groove. The structure has a plurality of guide holes corresponding to the contact portion, and the beam portion restricts movement of the movable mold body in the longitudinal direction, and when the movable mold body is moved in the removal direction, the engagement The convex portion engages with the beam portion to restrict the movable mold body from coming out of the fixed mold body, and the guide hole and the separation wall
A connector configured to keep the adjacent contact portions separated from each other.