JP4315987B2 - connector - Google Patents

Description

  The present invention includes a housing in which a plurality of terminal insertion holes are formed, and a plurality of terminals fixed to the housing by press-fitting into the terminal insertion holes. The present invention relates to a connector (for example, a surface mounting connector) whose wall surface intersects with right and left inner wall surfaces at substantially right angles.

Conventionally, such a connector as shown in FIGS. 17 to 21 is known.
17 to 20 includes a synthetic resin housing 103 in which a plurality of terminal insertion holes 101 are formed, and a terminal 105 press-fitted and fixed in the plurality of terminal insertion holes 101. The press-fitting portions 107 and 109 are formed in the upper portion.
At this time, the terminal 105 is formed such that the thickness Ch and the lateral width Cw of the main body 111 are slightly smaller than the corresponding height Hh and lateral width Hw of the terminal insertion hole 101 in order to enable insertion into the terminal insertion hole 101. In order to enable press-fitting and fixing to the terminal insertion hole 101, the lateral widths Ck1 and Ck2 of the press-fit portions 107 and 109 are formed slightly larger than the lateral width Hw of the terminal insertion hole 101.
The base terminals 113 of the plurality of terminals 105 are integrally connected to each other by a belt-like chain part 115, and the chain part 115 is cut according to the number of poles of the connector in this continuous state. 105 are collectively press-fitted and fixed in corresponding terminal insertion holes 101 to facilitate assembly.
However, since the press-fitting portions 107 and 109 are formed in the same shape at the same position in the adjacent terminals 105, there is a problem that the force required for the press-fitting increases and the ease of assembly is hindered. In addition, when narrowing the pitch between the terminals, there is a problem that the resistance force due to the distortion of the partition between the adjacent terminals 105 at the time of press-fitting increases, the force required for press-fitting further increases, and buckling and cracking occur. It was.

  In order to solve the above-described problem, in the one shown in FIG. 21 proposed by the applicant, the force required for press-fitting is reduced by forming the press-fitting portions 127 and 129 of the adjacent terminals 125 at different positions. Even when narrowing the pitch, the resistance force due to the distortion of the partition between adjacent terminal insertion holes 101 is reduced to reduce the force required for press-fitting, facilitating assembly and preventing buckling and cracking. (For example, Patent Document 1).

  17 to 21 are formed such that the lateral widths Ck1 and Ck2 of the press-fit portions 107 and 109 (or 127 and 129) of the terminal 105 (or 125) are slightly larger than the lateral width Hw of the terminal insertion hole 101. Therefore, it is possible to suppress variation in the assembly dimension of the terminal 105 (or 125) in the lateral width direction with respect to the terminal insertion hole 101 by press-fitting and fixing, but the allowable value of the height Hh of the terminal insertion hole 101 and the terminal 105 (or There is a problem that the assembly dimension in the height direction (thickness direction) varies due to the accumulation of the allowable value of the thickness Ch of 125).

In order to solve the above-described problem, as shown in FIG. 22, press-fitting protrusions 131 and 131 are integrally provided on both sides of the upper outer wall surface of the terminal 105 (or 125) to press-fit into the terminal insertion hole 101, The height Ck3 of the press-fitting part is formed to be slightly larger than the height Hh of the terminal insertion hole 101 within a range in which fixing is possible, so that the assembly dimension variation in the height direction of the terminal 105 (or 125) with respect to the terminal insertion hole 101 is reduced. There is a plan to suppress it.
JP-A-9-219270

However, in the conventional example shown in FIGS. 17 to 21, there is a problem in that variation in assembly dimension in the height direction of the terminal 105 (or 125) with respect to the terminal insertion hole 101 of the housing 103 cannot be suppressed.
Further, when narrowing the pitch between terminals (for example, the pitch between terminals = 0.5 mm), the partition between adjacent terminal insertion holes 101 of the housing 103 is thin (for example, wall thickness = 0.13 to 0.15 mm). Therefore, when the synthetic resin of the housing 103 is molded, there is a problem that the strength is weak in the vicinity of the weld line formed in the partition wall, and a crack is generated when the terminal 105 (or 125) is press-fitted.
Further, in the plan shown in FIG. 22, press-fitting protrusions 131 and 131 projecting in the plate thickness direction are formed on the upper outer wall surface of the terminal 105 (or 125) by punching a conductive thin plate or the like. It is difficult to stably form the protruding height of 131 to a predetermined value (for example, Ck3-Ch = 0.02 mm), and suppress variations in assembly dimensions in the height direction of the terminal 105 (or 125) with respect to the terminal insertion hole 101. There was a problem that could not be done.

  The present invention has been made in view of the above-described problems, and stabilizes the assembly dimensional accuracy in the height direction of the terminal with respect to the terminal insertion hole of the housing, and cracks are formed in the partition walls between the terminal insertion holes adjacent to each other when the terminals are pressed. The object is to provide a connector that does not occur.

  The invention according to claim 1 includes a housing in which a plurality of terminal insertion holes are formed, and a plurality of terminals fixed to the housing by press-fitting into the terminal insertion holes, and is opposed to the top and bottom of the terminal insertion holes. One of the inner wall surfaces is a connector that intersects with the left and right inner wall surfaces at a substantially right angle, and the terminal insertion hole of the terminal is formed at a corner where one inner wall surface of the terminal insertion hole intersects with the left and right inner wall surfaces. When press-fitting into the terminal, the terminal is pressed to the other inner wall surface side of the opposing inner wall surface, and a slope portion is formed to bite a corresponding corner portion of the terminal, and the slope portion of the terminal insertion hole is inserted into the terminal The terminal is formed on the opposite side (front side), and the terminal press-fitting portion is formed on the terminal insertion port side that does not overlap with the inclined portion when the press-fitting into the terminal insertion hole is completed.

  The invention according to claim 2 is the invention according to claim 1, wherein the slope portion of the terminal insertion hole has a tapered shape in which the slope length gradually decreases as a part or all of the slope faces toward the terminal insertion port side of the terminal insertion hole. It is formed on an inclined surface.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the inner wall surface facing the top and bottom of the terminal insertion hole has a bottom surface of the housing that faces the surface of the printed wiring board when mounted on the printed wiring board. It is characterized by being formed substantially in parallel.

According to the first aspect of the present invention, the terminal is pressed against the other inner wall surface of the terminal insertion hole when pressed into the terminal insertion hole, and the corresponding corner of the terminal is bitten into both corners of the inner wall surface of the terminal insertion hole. The slope is formed on the side opposite to the terminal insertion port (front side). When the terminal is press-fitted into the terminal insertion hole, the corresponding corner of the terminal is the slope in the first half of insertion. It is inserted smoothly without contact, and in the latter half of insertion, the corresponding corner of the terminal abuts the slope and presses the terminal toward the other inner wall surface, and the corresponding corner of the terminal bites into the slope Therefore, it is possible to facilitate the insertion of the terminal into the terminal insertion hole of the housing and to stabilize the assembly dimensional accuracy in the height direction. For this reason, in the surface mounting of the connector on the printed wiring board, the terminal connection portion can be stably placed on the corresponding land on the printed wiring board without wobbling, which can contribute to the stability of the connection.
In addition, since slopes are formed at the corners of the terminal insertion holes, the strength near the weld line formed in the partition between adjacent terminal insertion holes during resin molding of the housing, even when the pitch is reduced The decrease can be suppressed and the occurrence of cracks can be prevented.
Moreover, since the press-fitting part of the terminal is formed on the terminal insertion port side (rear side) that does not overlap with the slope when the press-fitting into the terminal insertion hole is completed, the terminal is press-fitted when the terminal is pressed into the terminal insertion hole. Therefore, even when the pitch between terminals is reduced, it is possible to prevent the terminal from buckling when the terminal is press-fitted into the terminal insertion hole.

  The invention according to claim 2 is the invention according to claim 1, wherein a part or all of the slope portion of the terminal insertion hole is formed on an inclined surface whose slope length gradually decreases toward the terminal insertion port side of the terminal insertion hole. Therefore, it is easy to press-fit the terminal into the terminal insertion hole, and it is possible to stabilize the pressing of the terminal against the other inner wall surface by the inclined surface during the press-fitting, and the biting into the inclined surface of the terminal Can be stabilized.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the inner wall surface facing the top and bottom of the terminal insertion hole is substantially parallel to the bottom surface of the housing facing the surface of the printed wiring board when mounted on the printed wiring board. When the terminal is press-fitted into the terminal insertion hole, the sloped portion may press the terminal parallel to the bottom surface of the housing toward the other inner wall, and the corresponding corner of the terminal may bite into the sloped portion. The assembly dimensional accuracy in the height direction of the terminal with respect to the terminal insertion hole of the housing can be stabilized. For this reason, in the surface mounting of the connector to the printed wiring board, the terminal connection portion can be stably placed on the corresponding land on the printed wiring board without wobbling, which can contribute to the stability of the connection.

  In a connector (for example, a surface mount connector) for press-fitting and fixing terminals corresponding to a plurality of terminal insertion holes formed in the housing, the assembly dimensional accuracy in the height direction of the terminal with respect to the terminal insertion hole of the housing is stabilized, Even when narrowing the pitch between the terminals, one inner wall surface of the upper and lower inner wall surfaces facing the terminal insertion holes is provided so that cracks do not occur in the partition walls between adjacent terminal insertion holes when the terminals are press-fitted. A slope is formed at the corner where the left and right inner walls intersect at a substantially right angle, and when the terminal is press-fitted, the terminal is pressed against the other inner wall by the slope, and the corresponding corner of the terminal is made into the slope. Encroach and fix.

1 to 15 show an embodiment of a connector (for example, a receptacle) according to the present invention.
FIG. 1 is an exploded perspective view of a connector before assembling with a part cut away, and FIGS. 2 to 6 are views showing the connector after assembling. In these drawings, 10 is an insulating synthetic resin. A molded connector housing (hereinafter simply referred to as a housing), 30 to 30 are a plurality of terminals formed by punching and bending a thin conductive metal plate of about 0.15 mm, and 50 is a thin conductive of about 0.3 mm. This is a shield case formed by punching and bending a conductive metal plate.

As shown in FIGS. 7 to 12, the housing 10 is integrally formed with a housing main body 11 formed in a substantially horizontally long rectangular parallelepiped shape and a substantially central portion on the front side of the housing main body 11 (upwardly diagonally left in FIG. 1). It consists of a tongue-shaped fitting guide plate 12 protruding.
An engagement protrusion 13 is formed at the center of the housing body 11 so as to protrude upward from the outer wall surface on the upper side, and the engagement protrusion 14 has a lower side protruded below the outer wall surfaces on both sides. Is formed.
In the central portion of the housing body 11, ten terminal insertion holes 15 penetrating from the back side (lower right side in FIG. 1) to the front side (upper left side in FIG. 1) have a predetermined pitch (for example, 0.5 mm pitch). ) In a horizontal row.
Engagement recesses 16, 16 are formed on the back side of both sides of the housing body 11 so as to be located on the center side.

As shown in FIG. 10, the terminal insertion hole 15 is formed in a substantially rectangular shape with a cross section perpendicular to the terminal insertion direction having a height Hh (eg, Hh = 0.16 mm) and a horizontal width Hw (eg, Hw = 0.35 mm). Has been.
The edge of the terminal insertion hole 15 on the terminal insertion port side (front side in FIG. 10) is chamfered to facilitate insertion of the terminal 30, and terminal insertion is performed on the inner wall surface 18 above the terminal insertion hole 15. A punching groove 17 is formed along the direction. This die-cut groove 17 is a groove formed by die-cutting of a reinforcing part integrally formed with a mold pin for molding the terminal insertion hole 15 when the housing 10 is molded with resin.
On the front side of the inner wall surface of the terminal insertion hole 15, sloped portions 22, 22 are formed such that the lower inner wall surface 19 is positioned at a corner where the lower inner wall surfaces 20, 21 intersect at right angles. The slope portions 22 and 22 are formed in a symmetrical shape with respect to a vertical center plane that divides the lower inner wall surface 19 into left and right halves. Specifically, the inclined surface of the inclined surface portion 22 is formed with an angle with respect to the lower inner wall surface 19 (that is, a dihedral angle) of 135 degrees (135 °) (cx = cy in FIG. 10), A part is formed in the inclined surfaces 23 and 23 as shown in FIG.1 and FIG.12. The inclined surface 23 is formed in a taper shape such that the inclined surface length gradually decreases toward the terminal insertion port side.
As shown in FIG. 10, cx and cy represent the horizontal width and height of the slope portion 22 as viewed from the terminal insertion direction, and are set so as to satisfy the following expressions (1) and (2).
Hh-Ch <cy (1)
(Hw−Cw) / 2 <cx (2)
In equations (1) and (2), Ch and Cw represent the thickness and width of the cross section perpendicular to the longitudinal direction of the terminal 30 (terminal insertion direction). Hh, Hw, Ch, Cw, cx, and cy are set so as to satisfy the expressions (1) and (2) including the allowable values. For example, Hh = 0.16 mm, Hw = 0.35 mm, Ch = 0.15 mm, Cw = 0.35 mm, and cx = cy = 0.04 mm are set.

  Ten terminal accommodating grooves 24 for accommodating the contact portions 31 of the respective terminals 30 are formed on the lower outer wall surface of the fitting guide plate 12 along the terminal insertion direction. Are communicated with corresponding terminal insertion holes 15 of the housing body 11.

As shown in FIGS. 13 to 15, the terminal 30 includes a contact portion 31, a press-fit portion 32, and a proximal end portion 33 that are integrally connected from the distal end side to the proximal end side, and the proximal end portion 33 is substantially the same. It is bent in a crank shape.
As shown in FIG. 1, the ten terminals 30 are integrally connected to the distal end side of the base end portion 33 by a chain portion 34 before assembly. Of the ten terminals 30, the contact portions 31 of the two terminals 30 located on both sides are formed slightly longer than the contact portions 31 of the eight terminals 30 located in the middle.

As shown in FIG. 14, an inclined portion 37 is formed on the distal end side of the contact portion 31 of the terminal 30 so that the lower outer wall surface 36 gradually approaches the upper outer wall surface 35 toward the distal end side.
As shown in FIG. 15B, the contact portion 31 of the terminal 30 and the main body portion of the press-fit portion 32 have a cross section perpendicular to the longitudinal direction (terminal insertion direction) having a thickness Ch (for example, Ch = 0.15 mm). It is formed in a rectangular shape having a lateral width Cw (for example, Cw = 0.35 mm). As shown in FIG. 13, a portion of the left and right outer wall surfaces of the press-fit portion 32 of the terminal 30 is directed from the front side (upper left side in FIG. 1) to the back side (lower right side in FIG. 1). The protrusion length from the main body is Ck1-Cw (for example, Ck-Cw = 0.375-0.35 = 0.025 (mm)), Ck2-Cw (for example, Ck-Cw = 0.38-0.35 = 0.03 (mm)) press-fit projections 38, 38, 39, 39 are formed in sequence.
In the chain portion 34, feed holes 40 are formed at predetermined intervals for use in progressive press.

As shown in FIG. 1, the shield case 50 has a substantially rectangular tube shape having an opening on the front side (the upper left side in FIG. 1) and the rear side (the lower right side in FIG. 1), with the terminal insertion direction as the central axis. Is formed.
The top plate 51 of the shield case 50 is formed with engagement holes 52 and 52 for engaging with the engagement protrusions when the mating connector (for example, a plug) is fitted. An engaging notch 53 and engaging tongues 54 and 54 are formed in the central portion and both sides thereof.
An engagement notch 56 is formed at the rear side edge of the bottom plate 55 of the shield case 50.
Connection portions 58 and 58 for grounding are formed at the lower center portion of the both side plates 57 and 57 of the shield case 50 by cutting and raising outward.

Next, an assembly method will be described with reference to FIG.
(1) First, molding of the housing 10 using a mold will be described.
As shown in FIG. 16, in order to form terminal insertion holes 15 to 15 arranged in a line at a predetermined pitch (for example, 0.5 mm pitch) in the housing 10, corresponding mold pins 70 to 70 in the mold are formed. The predetermined housing 10 is formed by filling the synthetic resin material 72 in a molten state around the periphery.
At this time, since the mold pins 70 are also formed with the slope portions 71 and 71 corresponding to the slope portions 22 and 22 of the terminal insertion hole 15, the mold pins 70 to 70 are filled through the gates. The flow of the synthetic resin material 72 is as shown by an arrow in FIG. 16, and can flow more smoothly than the conventional example without the slope portions 71, 71, and the strength reduction near the weld line WL can be suppressed.

(2) Next, the ten terminals 30 connected in series by the chain part 34 are collectively inserted into the corresponding terminal insertion holes 15 of the housing 10 from the tip side, and press-fitted by pressing the chain part 34.
Immediately before the press-fitting, the state is as shown in FIG. 14A. Therefore, at the start of press-fitting, the inclined portion 37 of the terminal 30 comes into contact with the inclined surface 23 of the inclined portions 22 and 22 and is smooth and easy. Press fitting can be performed.

(3) As the press-fitting of the terminals 30 to 30 into the terminal insertion holes 15 to 15 progresses, each inclined surface portion 22, 22 presses the corresponding terminal 30 to the upper inner wall surface 18 side, and the lower side of the terminal 30 The corner bites into the slope portions 22 and 22.
This press-fitting eliminates the gap between the upper outer wall surface 35 of the terminal 30 and the upper inner wall surface 18 of the terminal insertion hole 15 and the bottom surface of the terminal receiving groove 24, and the height of the terminal 30 relative to the terminal insertion hole 15 and the terminal receiving groove 24 is increased. The assembly dimensional accuracy in the vertical direction can be stabilized. At the same time, the assembly dimensional accuracy in the lateral direction of the terminal 30 with respect to the terminal insertion hole 15 and the terminal receiving groove 24 can be stabilized by the inclined surface portions 22 and 22 symmetrical to the vertical center plane that bisects the inner wall surface 18 to the left and right. .
Further, until the press-fit portion 32 (press-fit projections 38, 38 and press-fit projections 39, 39) of the terminal 30 is press-fitted into the terminal insertion hole 15, only the slope portions 22, 22 are in the press-fit resistance. The required force can be reduced to facilitate assembly and the occurrence of buckling can be prevented.

  (4) When the press-fitting advances and the press-fitting portion 32 of the terminal 30 is press-fitted into the terminal insertion hole 15, the press-fitting protrusions 38, 38 and the press-fitting protrusions 39, 39 bite into the left and right inner wall surfaces 20, 21 of the terminal insertion hole 15. 14B, the press-fitting completion state shown in FIG. 14B is achieved, and the assembly dimensional accuracy in the lateral width direction of the terminal 30 with respect to the terminal insertion hole 15 and the terminal receiving groove 24 can be further stabilized.

  (5) After the press fitting of the terminals 30 to 30 into the terminal insertion holes 15 to 15 is completed, the base end portions 33 to 33 are cut along the cutting line CL shown in FIG. The end portions of -33 are connection portions 41-41 for solder-connecting to corresponding lands of the printed wiring board.

(6) One, as shown in FIG. 1, the shield case 50 is incorporated into the housing 10 from the front side.
At this time, the engagement notches 53 and 56 of the shield case 50 are positioned by engaging with the engagement protrusions 13 and 14 of the housing body 11, and then the engagement tongues 54 and 54 of the shield case 50 are bent downward. The shield case 50 is fixed to the outside of the housing 10 by engaging with the engaging recesses 16, 16 of the housing body 11.
By fitting the shield case 50 into the housing 10, the mating connector is fitted into the space formed by the inside of the top plate 51, bottom plate 55 and both side plates 57, 57 of the shield case 50 and the outside of the fitting guide plate 12. A fitting recess 75 is formed for this purpose.

The connector assembled as described above is mounted on the surface of a printed wiring board, for example. Specifically, the ground connection portions 58 and 58 of the shield case 50 are placed on the corresponding ground lands on the substrate, and the connection portions 41 of the ten terminals 30 correspond to the substrate. It is placed on the power and signal lands and fixed by soldering. At this time, since the assembly dimension accuracy in the height direction and the width direction of the terminal 30 with respect to the terminal insertion hole 15 is stable, the connection portions 41 of the plurality of terminals 30 can be stably stabilized on the corresponding lands on the board. So that stable solder connection can be achieved.
The fitting portion of the mating connector is fitted into the fitting recess 75 of the surface-mounted connector. At the time of this fitting, the engaging protrusion of the mating connector engages with the engaging holes 52, 52 of the shield case 50 and is fixed. By this fitting, the ground line, power supply line, and signal line on the printed wiring board are electrically connected to the ground line, power supply line, and signal line connected to the mating connector.

In the above embodiment, two sets of press-fitting protrusions 38, 38, 39, 39 are formed on the left and right outer wall surfaces of each terminal 30 to form the press-fitting portion 32, and the press-fitting protrusions 38, 38, 39, 39 are adjacent to each other. The case where the terminals 30 and 30 are formed at the same position has been described, but the present invention is not limited to this.
For example, even when one set of press-fitting projections 38, 38 (or 39, 39) is provided to form a press-fitting portion, or when two sets of press-fitting projections 38, 38 and 39, 39 are used to form a press-fitting portion, Similarly to the case shown in FIG. 21 , it is also possible to use the case where the press-fitting portions 38, 38 and 39, 39 are formed at different positions between the adjacent terminals 30, 30 and the press-fitting portions are formed. In the latter case, even when the pitch between terminals is narrowed, the occurrence of buckling at the time of terminal press-fitting can be prevented more reliably.

In the above-described embodiment, even when the pitch between terminals is reduced, the slopes 22 and 22 are disposed on the front side of the corner of the terminal insertion hole 15 in order to prevent the occurrence of buckling when the terminals are pressed. However, the present invention is not limited to this, although the case where the press-fit portion 32 of the terminal 30 is formed at a position where the press-fit portion 32 is located on the terminal insertion port side and does not overlap with the inclined surfaces 22 and 22 is described.
For example, when the slopes 22 and 22 are formed in all of the corners of the terminal insertion hole 15 or when the press-fit part 32 of the terminal 30 is completely pressed, the corners corresponding to all of the slopes 22 and 22 of the terminal insertion hole 15 It can also be used for the case where it is formed.

  In the embodiment, in order to stabilize not only the assembly dimension accuracy in the height direction of the terminal 30 with respect to the terminal insertion hole 15 but also further stabilize the assembly dimension accuracy in the width direction of the terminal 30, the terminal 30 has the press-fit portion 32. Although the case where it comprises is demonstrated, this invention is not limited to this, It can utilize also when the press-fit part 32 is not comprised.

In the embodiment, the terminal 30 can be easily pressed into the terminal insertion hole 15, the inclined portions 22 and 22 are pressed against the inner wall surfaces 20 and 21 of the terminal 30, and the inclined portions 22 and 22 of the terminal 30. In order to stabilize the bite, the inclined portion 37 is formed at the distal end portion of the terminal 30 and the inclined portions 23 and 23 are partially formed on the inclined surfaces 23 and 23. However, the present invention is not limited to this.
For example, when the inclined portion 37 of the terminal 30 is omitted, the inclined portions 22, 22 are all formed in a tapered inclined surface toward the terminal insertion port side of the terminal insertion hole 15, or the inclined portion 22, It is also possible to use the case where the 22 inclined surfaces 23, 23 are omitted.

  In the embodiment described above, cx shown in FIG. 10 is equal to cy in order to prevent the strength of the partition between the adjacent terminal insertion holes 15 and 15 of the resin-molded housing 10 from being weakened in the vicinity of the weld line WL. (Cx = cy), that is, the case where the angle of the inclined surfaces 22 and 22 with respect to the inner wall surface 19 is 135 degrees has been described. However, the present invention is not limited to this, and the case other than 135 degrees ( That is, it can also be used for cx ≠ cy).

  In the embodiment, when the terminal 30 is press-fitted into the terminal insertion hole 15, the terminal 30 is pressed against the inner wall surfaces 20, 21 in a balanced manner, and the corresponding corners of the terminal 30 are bitten into the inclined surfaces 22, 22 with a good balance. In addition, the case where the slope portions 22 and 22 are formed in a symmetrical shape with respect to the vertical center plane that bisects the inner wall surface 19 of the terminal insertion hole 15 to the left and right has been described, but the present invention is not limited to this. In addition, the present invention can also be used in the case where the slope portions 22 and 22 are formed in an asymmetric shape with respect to the vertical center plane.

  In the above embodiment, the case where the slope portions 22 and 22 are formed at the corners where the one inner wall surface 19 and the left and right inner wall surfaces 20 and 21 are substantially orthogonal to each other has been described, but the present invention is not limited to this. The slope portions 22 and 22 can also be used in the case where the other inner wall surface 18 and the left and right inner wall surfaces 20 and 21 are formed at corners substantially perpendicular to each other.

  In the above embodiment, the case where the punching groove 17 is formed in the terminal insertion hole 15 has been described. However, the present invention is not limited to this, and the terminal insertion is the same as that shown in FIG. It can also be used in the case where the punching groove 17 is not formed in the hole 15.

  It can be used for a connector (for example, a receptacle) for electrically connecting a mating connector (for example, a plug) and a printed wiring board. For example, in a surface mount connector, the assembly dimension accuracy in the height and width directions of the terminal with respect to the terminal insertion hole of the housing is stabilized, and the terminal connection portion is stably placed on the corresponding land on the board without wobbling. Applicable to do.

FIG. 4 is an exploded perspective view showing an embodiment of the connector according to the present invention, with a part cut away and enlarged. It is a top view of the connector after an assembly. It is a front view of the connector after an assembly. FIG. 4 is a left side view of FIG. 3. FIG. 4 is a sectional view taken along line AA in FIG. 3. FIG. 4 is a sectional view taken along line BB in FIG. 3. 3 is a plan view of the housing 10. FIG. 3 is a front view of the housing 10. FIG. 4 is a bottom view of the housing 10. FIG. It is a rear view of the housing 10 which expanded and represented a part. It is a right view of FIG. It is an AA line expanded sectional view of FIG. 4 is a partially enlarged plan view showing a part of the terminal 30 in an enlarged manner. FIG. It is explanatory drawing which shows the press injection to the terminal insertion hole 15 of the terminal 30, (a) shows the state just before press injection, (b) is a figure which shows the press injection completion state. FIG. 14A is a cross-sectional view and an end view of FIG. 14A, where FIG. 14A is an AA line partial enlarged cross-sectional view, and FIG. 14B is a BB line cut partial enlarged end view. It is explanatory drawing which shows shaping | molding of the housing 10 using a metal mold | die. It is a top view which shows the conventional terminal 105. FIG. 2 is a front view of a terminal 105. FIG. It is a front view of the conventional connector. The cross section of the conventional connector is shown, (a) is the elements on larger scale of the terminal insertion hole 101, (b) is the elements on larger scale of the terminal 105. It is a top view of the terminal 125 by the applicant's previous proposal. It is a partial expanded sectional view of the terminal 105 (125) in the plan considered in order to suppress the variation in the assembly dimension precision of a height direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Housing 11 ... Housing main body 12 ... Fitting guide plate 15 ... Terminal insertion hole 18 ... Upper inner wall surface 19 ... Lower inner wall surface 20, 21 ... Right and left inner wall surface 22 ... Slope part 23 ... Inclined surface 24 ... Terminal Housing groove 30 ... Terminal 32 ... Press-fit portion 35 ... Upper outer wall surface 36 ... Lower outer wall surface 37 ... Inclined portion 38, 39 ... Press-fit protrusion 50 ... Shield case

Claims (3)

  A housing (10) in which a plurality of terminal insertion holes (15) are formed, and a plurality of terminals (30) fixed to the housing (10) by press-fitting into the terminal insertion holes (15). A connector in which one inner wall surface (19) of the inner wall surfaces (18) and (19) opposed to the upper and lower sides of (15) intersects with the left and right inner wall surfaces (20) and (21) substantially at right angles. At the corner where one inner wall surface (19) of (15) intersects the left and right inner wall surfaces (20), (21), the terminal (30) is inserted into the terminal insertion hole (15) of the terminal (30). Slope portions (22), (22) are formed which are pressed against the other inner wall surface (18) side and bite corresponding corner portions of the terminal (30), and the slope portions (22) of the terminal insertion hole (15), (22) is formed on the side opposite to the terminal insertion port (front side), and press-fit the terminal (30) (32), the inclined surface portion during the press-fitting completion of the terminal insertion holes (15) (22), the connector being characterized in that it is formed located in the terminal insertion port side that does not overlap with (22).   The inclined surface (22), (22) of the terminal insertion hole (15) has a tapered inclined surface (a part or all of the inclined surface is gradually shortened toward the terminal insertion port side of the terminal insertion hole (15)). 23) The connector according to claim 1, wherein the connector is formed as (23). Inner wall surfaces (18) and (19) facing the top and bottom of the terminal insertion hole (15) are formed substantially parallel to the bottom surface of the housing (10) facing the surface of the printed wiring board when mounted on the printed wiring board. The connector according to claim 1, wherein the connector is provided.

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