JP2874586B2 - Board mounting connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board mounting connector and, more particularly, to a board mounting connector provided with an alignment plate for correcting a board terminal projecting from a back surface and bent toward a bottom surface to a proper position.

[0002]

2. Description of the Related Art Conventionally, as this type of board-mounted connector, the one disclosed in Japanese Patent Application Laid-Open No. 63-231891 shown in FIGS. 6 and 7 is known. In the drawing, a housing 1 formed in a hood shape that can be fitted to a mating connector.
Has a plurality of board terminals 2 which can be mounted on a printed circuit board with the opening directed in the horizontal direction, serve as male terminal fittings in the hood portion 1b, and protrude through the rear wall surface 1a. I have. The board terminal 2 penetrates through the rear wall surface 1a and protrudes horizontally, and then has its tip bent to the bottom side which is vertically downward. The distal end has a substantially uniform length such that it protrudes slightly through the printed circuit board. On the other hand, a through hole 3a is formed in the plate-shaped alignment plate 3 at a position corresponding to the normal position of the substrate terminal 2.
The opening a has a tapered shape so that the tip of the substrate terminal 2 can be easily inserted.

[0003] In mounting the alignment plate 3 to correct the tip of the board terminal 2 deviated from the normal position to the normal position,
The openings of the through holes 3a are tapered to facilitate insertion of the plurality of substrate terminals 2 into the through holes 3a.

[0004]

In the above-mentioned conventional board mounting connector, although the opening of the through hole 3a is tapered, the positioning of the alignment plate 3 itself and the positioning of the board terminal 2 are required in the mounting operation. Has to be performed, and there is a problem that the operation is troublesome. The present invention has been made in view of the above problems, and an object of the present invention is to provide a board mounting connector capable of mounting an alignment plate more easily.

[0005]

According to one aspect of the present invention, there is provided a housing having a plurality of board terminals protruding from a rear surface and bent to a bottom surface, and a housing having a plurality of board terminals. A mounting plate having an alignment plate having a through hole formed at a position, the alignment plate having a front end attached to a bottom surface of the housing via a hinge portion, and a rear end having the hinge portion as a fulcrum, and A configuration in which the guide rib is formed so as to be rotatable toward the distal end position of the terminal and to form the through hole formed in the alignment plate so that the peripheral surface on the side opposite to the hinge side protrudes divergently. is there. Further, the invention according to claim 2 includes a housing having a plurality of terminal fittings, which can be fitted and connected to a mating connector, and wherein a board terminal that is electrically connected to the terminal fitting protrudes from the back surface and is bent toward the bottom surface side. And a through hole at a position facing the proper position of the plurality of board terminals when the rear surface is rotated by being connected to a bottom surface of the housing via a hinge portion, and the hinge is provided in the through hole. And an alignment plate formed with guide ribs protruding in a divergent shape on the peripheral surface opposite to the side.

Further, the invention according to claim 3 is the invention according to claim 1.
Alternatively, in the board mounting connector according to the second aspect, the alignment plate and the housing are provided with a concave-convex engagement mechanism that serves as a pivot point for mutual rotation. Further, the invention according to claim 4 is the board mounting connector according to claim 3, wherein the alignment plate and the housing have a lock mechanism for fixing the alignment plate in a final state in which the alignment plate has been rotated substantially completely rearward. It is provided for. According to a fifth aspect of the present invention, in the board-mounted connector according to the fourth aspect, the alignment plate and the housing are arranged such that the ends of substantially all the board terminals have a thickness of the same alignment plate in a state immediately before the final state. It is provided with a transport lock mechanism that is fixed in a state where it is located within the range.

[0007]

In the present invention constructed as described above, the end of the alignment plate is attached to the bottom surface of the housing via the hinge, and the alignment plate is rotatable about the hinge. The rear end of the alignment plate can be turned toward the front end position of the board terminal projecting from the rear surface of the housing with the portion as a fulcrum. Here, through holes are formed in the alignment plate at regular positions of the board terminals,
Since the hinge rotates about the hinge, a circular arc is drawn, and the tip of the substrate terminal does not necessarily face the through hole. However, since the guide surface is formed by projecting the peripheral surface of the through hole opposite to the hinge side in a divergent shape,
The distal end of the board terminal bent to the bottom side is inserted into the through hole so as to be brought into the hinge side by abutting the guide rib. Further, in the invention according to claim 3 configured as described above, when the alignment plate is rotated with respect to the housing, the two are rotatably engaged with each other via the concave / convex engagement mechanism, so that accurate alignment is achieved. Since the rotation fulcrum is formed, the guide rib more efficiently guides the board terminal into the through hole when the rotation is turned. Further, in the invention according to claim 4 configured as described above, the lock mechanism fixes the alignment plate and the housing in the final state in which the alignment plate has been rotated substantially completely rearward.

Furthermore, in the invention according to claim 5 configured as described above, in the process of gradually rotating the alignment plate, almost all of the terminals of the board terminals have the thickness of the alignment plate just before the final state. Is located within the range. In this state, the board terminal closer to the hinge is just before penetrating the alignment plate, and the board terminal farther from the hinge is just after being inserted into the alignment plate. In this state, the transport lock mechanism fixes the housing and the alignment plate, thereby preventing the front end of the substrate terminal from hitting a foreign substance and being bent during the transport. Even if the board terminal on the side near the hinge slightly penetrates the alignment plate, the tip is slightly protruded, so that even if it hits a foreign substance, it is not easily deformed.

[0009]

As described above, according to the present invention, the alignment plate is fixed to the housing via the hinge, so that the alignment plate can be easily bent from the hinge and mounted without worrying about the alignment of the alignment plate. it can. Here, by forming the guide rib in the through hole, it is possible to prevent the board terminal from being difficult to be inserted into the through hole by the rotation operation. According to the third aspect of the present invention, since the rotation fulcrum is made accurate by the concave-convex engagement mechanism while forming the hinge,
Insertion of the board terminal becomes easy. Furthermore, according to the invention of claim 4, since the housing and the alignment plate are finally locked, even if there is a vibration or the like, abnormal noise is hardly generated, and the housing does not drop out during the conveyance. Furthermore, according to the fifth aspect of the invention, it is possible to prevent the tip of the substrate terminal from being bent during the transportation.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a state in which a board-mounted connector according to one embodiment of the present invention is viewed from the back, and FIG. 2 shows a cross section as viewed from the side. In the figure, the board mounting connector 10 has a rectangular box-shaped housing 20 with one side opened, and can be installed on a printed circuit board (not shown) with the opening facing in the horizontal direction. The male terminal fitting 30 is press-fitted and fixed from the rear side through the back wall 21 facing the opening, and the male terminal fitting 30 is connected to the housing 20.
Are male terminals 31 and portions protruding from the rear side are substrate terminals 32. The board terminal 32 projects substantially horizontally from the back of the housing 20,
It is bent vertically downward from a position extending a predetermined length. The bent length has three stages from the one near the back wall 21 to the one far away.

In the present embodiment, the board terminal 32 is the male terminal 31 in the housing 20. However, the board terminal 32 projects at least from the back of the housing 20 and is bent vertically from a position extending a predetermined length. Just do it. The bent length is not limited to three stages, and may be a little, or may be any length required for each board terminal 32. An alignment plate 40 is connected to a lower surface of the housing 20 via a thin hinge portion 22. Since the hinge portion 22 has a thin plate shape, it is easily bent, and the alignment plate 40 bends the hinge portion 22 so as to be rotatable rearward. When the alignment plate 40 is rotated rearward, it becomes orthogonal to the substrate terminal 32, and the alignment plate 40 is formed with a through hole 41 at a regular position of the substrate terminal 32 as shown in FIG. is there. The inner periphery of the through hole 41 is not a straight tube, but has a tapered shape in which the side facing rearward in FIG. 2 is enlarged in diameter. In addition, a guide rib 42 is formed so as to protrude from the edge of the opening on the side of the through hole 41 whose diameter is enlarged. The guide rib 42 is connected to the hinge 22 in the through hole 41.
And is continuous with the inner peripheral surface on the side opposite to the side, and further protrudes outwardly in a divergent shape.

The guide rib 42 protrudes from the peripheral surface on the side opposite to the hinge portion 22 in a divergent shape, and its shape is determined as follows. Since the board terminal 32 penetrates the alignment plate 40 in the final state, when the alignment plate 40 rotates as shown in FIG.
2 is located on the opposite side of the hinge portion 22 from the center of the through hole 41. Therefore, when rotating while drawing an arc, the end of the board terminal 32 must be widened to such an extent that it is drawn into the through hole 41. In addition, the purpose of the original alignment plate 40 is to align the board terminals 32 so as to prevent the board terminals 32 from being inserted into the printed circuit board because the board terminals 32 are displaced from the proper positions. The flared shape is necessary to guide the tip into the through hole 41 when in the regular position, and the flared shape is sufficient to cover the range in which the board terminal 32 shifts. The guide rib 42 may have any shape as long as it can cover such a range. In the present embodiment, the guide rib 42 protrudes only on the side opposite to the hinge portion 22, but, for example, from the entire periphery of the opening of the through hole 41. It may be projected. Also, the divergent shape may be arc-shaped or formed by combining a plurality of planes. A groove 23 extending in the front-rear direction is formed on the bottom surface of the housing 20 on the rear side of the hinge portion 22.
Numeral 0 has a narrow portion 43 that enters the groove 23 when rotated rearward. On both sides of the groove 23, projections 24, 24 projecting downward in contrast are formed.
Recesses 24a, 24b on the front and rear surfaces of
Is formed. On the other hand, in the alignment plate 40 as well, the convex portions 24 are provided on the front end side and the rear end side of the small-diameter portion 43 that enters the groove 23.
A projection is formed at a position facing the recesses 24a and 24b on the front and rear surfaces of the projection. Here, the projection facing the concave portion 24a is a rotation engaging projection 44 that projects rearward when rotating, and the projection facing the concave portion 24b is a lock projection 45 that can bend backward when rotating. In the final state in which the alignment plate 40 is rotated rearward, the rotation engaging projection 44
Enter the concave portion 24 a of the convex portion 24, and the lock projection 45 enters the concave portion 24 b of the convex portion 24.

In this embodiment, a groove 23 is formed between two convex portions 24, 24 extending in the front-rear direction to form an alignment plate 40.
Is inserted so that the rotation engaging protrusion 44 engages with the front surface of the convex portion 24.
If the front end of the housing 20 is rotatably engaged with the bottom surface of the housing 20, the rotation shaft is stabilized. Further, the lock projection 45 only needs to be able to be locked in the final state, and may be configured to lock at another part. Furthermore, it is also possible to lock in each position stepwise. Next, the operation of the present embodiment having the above configuration will be described. When the hinge portion 22 is bent and the alignment plate 40 starts to rotate, first, the rotation engaging projection 44 is
4 and naturally enters the recess 24a. When the rotation is attempted by the hinge portion 22 alone, the rotation shaft is apt to shake, but the rotation engagement projection 44 enters the recess 24a and rotates, so that the rotation shaft is stabilized. On the other hand, since a lock projection 45 that can be bent is formed on the rear side,
The lock projection 45 rides on the rear end corner of the convex portion 24 when the pivot 24 is rotated to the rear side. Therefore, the rotation engaging projection 44 is pulled rearward, enters the recess 24a, and the rotation shaft is further stabilized. As the lock projections 45 ride on the corners of the projections 24, the row of the board terminals 32 on the side of the hinge portion 22 abuts against the inner peripheral surface of the guide rib 42 as shown in FIG. It is deflected toward 41 and guided. As the alignment plate 40 rotates, the board terminal 32 farther from the hinge portion 22 is gradually moved to the guide rib 4.
2 and is guided to the through hole 41 as shown in FIGS. 4 and 5.

As described above, the alignment plate 40 is connected to the housing 20.
And a guide rib 42 for guiding the tip of the substrate terminal 32 into the through hole 41 at the opening of the through hole 41. By performing the operation of rotating the alignment plate 40 backward, all the board terminals 32 are guided to the through holes 41 by the guide ribs 42, and the alignment plate 40 can be mounted. In the final state where the alignment plate 40 is substantially horizontal, the board terminals 32 pass through the through holes 41 of the alignment plate 40,
It is held in the normal position. In addition, the lock projection 45 is
In order to enter and lock into the concave portion 24b on the rear surface side in FIG. 4, the alignment plate 40 is fixed at that position. By being fixed, rattling does not occur and abnormal noise does not occur even if there is vibration, and the alignment plate 40 does not come off during conveyance. In the above-described embodiment, the lock projection 45 is engaged with the rear surface of the protrusion 24 only in the final state, but may be engaged in an inclined state. For example, when one of the board terminals 32 opposite to the hinge part 22 abuts against the inner peripheral surface of the guide rib 42, the one near the hinge part 22 has already been guided into the through hole 41. In this state, it may be locked so as to be temporarily fixed. When the alignment plate 40 is rotated to the final state, the tip of the substrate terminal 32 projects considerably. Therefore, if the paper is transported as it is, the leading end may hit the foreign matter and bend during the transportation. On the other hand, if the terminal is temporarily fixed in the above-described state immediately before the final state, it is possible to prevent the tip of the board terminal 32 from protruding and to bend in the middle of conveyance. Ideally, one of the board terminals 32 that is on the side opposite to the hinge part 22 abuts on the inner peripheral surface of the guide rib 42 and that on the side close to the hinge part 22 is the through hole 41.
Although it is preferable to be located inside, it is hard to bend even if it hits a foreign substance as long as it protrudes slightly as shown in FIG. 4, and the same effect can be expected. If the length of the substrate terminal 32 does not need to be constant,
When the distance from the hinge portion 22 is increased in accordance with the inclination angle of 0, the tips of all the board terminals 32 are
1 and can be temporarily fixed.

[Brief description of the drawings]

FIG. 1 is a rear view of a board mounting connector according to one embodiment of the present invention.

FIG. 2 is a cross-sectional view of the board-mounted connector before assembly.

FIG. 3 is a cross-sectional view of the process of assembling the board-mounted connector.

FIG. 4 is a sectional view showing a process of assembling the board-mounted connector.

FIG. 5 is a sectional view of a final state of the board mounted connector.

FIG. 6 is a perspective view of a conventional board mounting connector.

FIG. 7 is a partially enlarged perspective view of an alignment plate of a conventional board mounted connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Board mounting connector 20 ... Housing 21 ... Back wall 22 ... Hinge part 24a, 24b ... Concave part 32 ... Board terminal 40 ... Alignment plate 41 ... Through-hole 42 ... Guide rib 44 ... Rotation engagement protrusion 45 ... Lock protrusion

Claims (5)

(57) [Claims] 1. A board mounting connector comprising: a housing having a plurality of board terminals projecting from a rear surface and bent to a bottom side; and an alignment plate having a through hole formed at a regular position of the plurality of board terminals. The plate has a front end attached to the bottom surface of the housing via a hinge portion, the rear end of which can be turned toward the front end position of the substrate terminal with the hinge portion as a fulcrum, and formed on the alignment plate. A board mounting connector, wherein a guide rib is formed in the through hole to protrude in a divergent shape on a peripheral surface opposite to a side of the hinge. 2. A housing having a plurality of terminal fittings, capable of being fitted and connected to a mating connector, and having a board terminal projecting from the back surface and being bent toward the bottom surface, the board terminal being electrically connected to the terminal fitting. A through hole is provided at a position facing the proper position of the plurality of board terminals when the base terminal is connected to the bottom surface via a hinge portion and turned to the rear end side, and the through hole has a side opposite to the hinge side. And a guide plate formed with a guide rib having a peripheral surface protruding in a divergent shape. 3. The board mounting connector according to claim 1, wherein the alignment plate and the housing are provided with a concave-convex engagement mechanism that serves as a rotation fulcrum with respect to each other. Board mounting connector. 4. The board mounting connector according to claim 3, wherein the alignment plate and the housing are provided with a lock mechanism for fixing the alignment plate in a final state in which the alignment plate is rotated substantially completely rearward. Board mounted connector. 5. The board-mounted connector according to claim 4, wherein the alignment plate and the housing are located such that the front ends of all the board terminals are in a range of the thickness of the alignment plate before the final state. A board mounting connector comprising a transport lock mechanism for fixing the board in a state where the board is mounted.