JP2006190551A - Mounting structure of connector with terminal on printed circuit board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a connector with a terminal on a PCB, with cost reduction aimed at, and capable of surely positioning the connector with the terminal on the PCB by inserting a plurality of terminals into through-holes formed on the PCB. <P>SOLUTION: The structure is provided with a connector pedestal 2 with a plurality of terminals 3 erected, and a PCB 4 having a plurality of through-holes 5 capable of inserting the plurality of terminals. Each of the plurality of through-holes 5 is composed of a first positioning hole 5a capable of regulating movement in X- and Y-directions of the terminals 3 inserted, and a second positioning hole 5b capable of regulating movement in a rotation direction of the connector pedestal 2 with the terminals 3 inserted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mounting structure of a connector with terminals on a PCB, and relates to a connector mounting structure on a PCB that can be positioned and mounted on a PCB with certainty.

As a conventional structure for mounting a connector with a terminal on a PCB, a configuration described in Patent Document 1 is known.
Referring to FIG. 4 and FIG. 5, for example, a relay socket 21 will be described as a connector with terminals. A plurality of terminals 22 are erected on the back side of the relay socket 21 on the lower side in the figure. Yes.
In addition to the plurality of terminals 22, the relay socket 21 has a stand-off portion 23 that protrudes downward from the main body case 21 a, and a positioning portion 24 that extends downward from the stand-off portion 23.
In the positioning portion 24, a pair of projecting piece portions 24b and 24b facing each other across the split groove 24a is divided and formed, and a hook-like locking claw 24c is formed at the tip of the pair of projecting piece portions 24b and 24b. , 24c are formed.

Further, the PCB (printed circuit board) 25 has a first insertion hole 25a into which a plurality of terminals 22 can be inserted and a second insertion hole into which a positioning part 24 having a pair of projecting pieces 24b, 24b can be snap-engaged. 25b is formed through.
When the plurality of terminals 22 are inserted into the first insertion hole 25a and the hook-like locking claws 24c and 24c of the positioning portion 24 are pushed into the second insertion hole 25b and snap-engaged, the relay socket 21 is connected to the PCB 25. And the movement is restricted and temporarily fixed.
The relay socket 21 which is a connector with a terminal temporarily fixed to the PCB 25 can be mounted on the PCB 25 by soldering a plurality of terminals 22 to the PCB 25.
JP-A-8-298388

However, the conventional mounting structure of the connector with terminals on the PCB as described above has a hook-like locking claw 24c in addition to the plurality of terminals 22 in order to position the relay socket 21 which is a connector with terminals on the PCB 25. Since the positioning part 24 having 24c is formed and the second insertion hole 25b in which the positioning part 24 can be snap-fitted is formed in the PCB 25, the manufacturing of the main body case 21a and the PCB 25 becomes complicated, and the cost is reduced. There was a problem to be up.
The present invention solves the problems as described above, and inserts a plurality of terminals into a through-hole formed in the PCB, so that the connector with terminals can be reliably positioned on the PCB. An object is to provide a mounting structure.

As a first means for solving the above problems, a connector mounting structure with a terminal on a PCB according to the present invention includes a connector base in which a plurality of terminals are erected and a plurality of through holes into which the plurality of terminals can be inserted. A plurality of through holes, a first positioning hole capable of restricting movement of the inserted terminal in the X direction and the Y direction, and the connector in a state in which the terminal is inserted. It has the 2nd positioning hole which can control the motion of the rotation direction of a base.
Further, as a second means for solving the above-described problem, the through holes except for the first and second positioning holes are formed to have dimensions that allow the inserted terminals to be loosely fitted in the X direction and the Y direction. It is characterized by being.

Further, as a third means for solving the above-mentioned problem, the second positioning hole is formed at a position separating at least the plurality of through holes from the first restriction hole.
As a fourth means for solving the above-mentioned problem, a plurality of the plurality of terminals are formed along the X direction, and at least a plurality of the second positioning holes are arranged in the X direction from the first positioning holes. It is formed in a position far from the through-hole, and is formed to have a dimension capable of restricting the movement in the Y direction and the movement in the rotation direction of the inserted terminal.

Further, as a fifth means for solving the above-described problem, at least two of the plurality of through-holes positioned at both end sides in the X direction are the second positioning holes.
As a sixth means for solving the above-mentioned problem, the plurality of terminals are formed in a plurality of stages along the Y direction, and the plurality of through holes at positions spaced from the first positioning holes in the Y direction. At least one of the second positioning holes is used as the second positioning hole, and the second positioning hole is formed to have a dimension capable of regulating the movement in the Y direction and the movement in the rotation direction of the inserted terminal.

Further, as a seventh means for solving the above problems, a connector base having a plurality of terminals erected, and a PCB (printed wiring board) having a plurality of through holes into which the plurality of terminals can be inserted, are provided. The through hole has a first restriction hole capable of restricting movement of the inserted terminal in the X direction, and a second restriction hole capable of restricting movement of the inserted terminal in the Y direction. The through hole excluding the second restriction hole is characterized in that the inserted terminal is formed to have a size capable of loose fitting in the X direction and the Y direction.
Further, as an eighth means for solving the above problem, a plurality of the plurality of terminals are formed along the X direction, and the first restriction hole is formed by at least one of the plurality of through holes. Both ends of the inserted terminal in the X direction at a position distant from the first restricting hole and separated from the first restricting hole by at least a plurality of through holes. At least two of the plurality of through holes on the side are the second restriction holes, and the at least two second restriction holes have dimensions that can restrict the movement of the inserted terminal in the Y direction. It is formed.

In addition, as a ninth means for solving the above-mentioned problem, the terminal is characterized in that a chamfered or rounded shape is formed at a tip portion.
Further, as a tenth means for solving the above-mentioned problem, the first and second positioning holes or the first and second restricting holes are chamfered or rounded at a corner portion on the side where the terminal is inserted. Is formed.

  The plurality of through holes in the mounting structure of the connector with terminals to the PCB of the present invention include a first positioning hole capable of restricting movement of the inserted terminal in the X direction and the Y direction, and the connector base in a state where the terminal is inserted. Since it has the 2nd positioning hole which can regulate the movement of a rotation direction, it can position by restricting the movement of the connector with a terminal in the X direction and the Y direction by inserting a plurality of terminals into the penetration hole of PCB. it can. Therefore, a positioning member which is a separate member from the terminal as in the conventional example is not necessary, and the cost can be reduced.

  In addition, the through holes excluding the first and second positioning holes are formed in dimensions that allow the inserted terminals to be loosely fitted in the X direction and the Y direction, so that the terminals are press-fitted into the first and second positioning holes. The pressing force can be reduced and the assembly workability is good.

  In addition, since the second positioning hole is formed at a position separating at least the plurality of through holes from the first restriction hole, the positioning hole and the terminal inserted into the positioning hole can be positioned even if there is slight backlash. It is possible to minimize the influence of the looseness at the time, and the terminal-equipped connector positioned by inserting the terminal into the through hole of the PCB can be reliably positioned.

  In addition, a plurality of terminals are formed along the X direction, and the second positioning hole is formed at a position distant from the first positioning hole in the X direction with at least a plurality of through holes inserted, and inserted. Since the movement in the Y direction and the movement in the rotational direction are regulated so as to be restricted, even if there is a slight backlash between the positioning hole and the terminal inserted into the positioning hole, It is possible to minimize the influence of attachment, and positioning of the connector with terminals can be performed reliably.

  In addition, since at least two of the plurality of through holes located on both ends in the X direction are the second positioning holes, the movement of the connector with terminal in the rotational direction can be more reliably regulated.

  The plurality of terminals are formed in a plurality of stages along the Y direction, and at least one of the plurality of through holes at positions spaced from the first positioning hole in the Y direction serves as a second positioning hole. Is formed in such a size that the movement of the inserted terminal in the Y direction and the movement in the rotational direction can be restricted, so that the first positioning hole restricts the movement of the connector with terminal in the X direction and the Y direction. 2 Positioning holes can regulate the movement of the connector with terminals in the rotational direction, and at the same time, the first positioning holes and the second positioning holes can be arranged at different positions in different positions, ensuring the positioning of the connectors with terminals. Can be done.

  The through hole has a first restriction hole capable of restricting the movement of the inserted terminal in the X direction and a second restriction hole capable of restricting the movement of the inserted terminal in the Y direction. The through-holes excluding the restriction holes are formed with dimensions that allow the inserted terminals to be loosely fitted in the X and Y directions, so that the positioning of the connector with terminals in the X and Y directions can be reliably performed. it can.

  In addition, a plurality of terminals are formed along the X direction, and the first restriction hole is formed by at least one of the plurality of through holes, and the movement of the inserted terminal in the X direction can be restricted. At least two of the plurality of through holes on both end sides in the X direction at positions far from the first restriction hole in the X direction with at least the plurality of through holes separated from each other as the second restriction holes, Since the two second restricting holes are formed to dimensions that can restrict the movement of the inserted terminal in the Y direction, the movement in the Y direction can be accurately regulated by the second restricting holes spaced apart from each other. In this state, the movement in the X direction can be restricted by the first restriction hole, and the positioning of the connector with terminal in the X direction, the Y direction, and the rotation direction can be surely performed.

  Also, since the terminal is chamfered or rounded at the tip, it can be easily inserted into the first and second positioning holes and the first and second restricting holes.

  In addition, since the first and second positioning holes and the first and second restriction holes are chamfered or rounded at the corner portion on the side where the terminal is inserted, the operation when inserting the terminal is easy. is there.

   The mounting structure of the connector with a terminal on the PCB of the present invention is used when, for example, a connector with a terminal for electrically connecting an electronic device and a wiring circuit is mounted on a PCB (printed wiring board) by soldering, An embodiment thereof will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a connector with a terminal and a PCB according to the present invention, FIG. 2 is a plan view for explaining a first embodiment of the present invention, and FIG. 3 is a second embodiment of the present invention. It is a top view explaining the form of.

First, in the first embodiment of the mounting structure of the connector with terminals on the PCB of the present invention, as shown in FIG. 1, the connector with terminals 1 is arranged. The terminal-equipped connector 1 is aligned in the arrow X direction and the Y direction (multiple rows, multiple stages) of a plate-like connector base 2 made of an insulating thermoplastic resin material such as polybutylene terephthalate, and insert molding. For example, a plurality of terminals 3 are erected from the upper surface side to the lower surface side.
The terminal 3 has a PCB insertion portion 3a located on the upper surface side of the connector base 2 formed in a prismatic shape and a tip portion chamfered or rounded.

The PCB (printed circuit board) 4 is made of a thermosetting resin material such as a phenolic resin laminate, and a plurality of through holes 5 into which a plurality of terminals 3 can be inserted are formed in the X direction. A plurality of stages are formed in the Y direction, and two stages are formed in the present embodiment. In a general connector, the number of through holes 5 in the X direction is larger than the number of through holes 5 in the Y direction. In the present embodiment, six in the X direction and 2 in the Y direction. Steps are provided, and the distance between the through holes 5 at both ends in the X direction is longer than the distance between the through holes 5 at both ends in the Y direction.
For example, as shown in FIG. 2, the through-hole 5 is formed in a substantially oval shape, but at least one of the substantially center portions in the vertical direction in the figure, which is the X direction, is a prismatic PCB insertion of the terminal 3. A circular first positioning hole 5a capable of press-fitting the portion 3a is formed.
That is, the first positioning hole 5a is formed to have a dimension capable of restricting movement of the PCB insertion portion 3a of the inserted terminal 3 in the arrow X direction and the Y direction.
However, only the first positioning hole 5a cannot be positioned in the rotational direction around the first positioning hole 5a.

Since the first positioning hole 5a restricts the movement of the connector base 2 in the X direction and the Y direction, when a plurality of the first positioning holes 5a are provided, it is preferable to form a single one because the insertability deteriorates.
In the present embodiment, the surface around the through hole 5 is a flat surface, but at least the first and second positioning holes 5a and 5b of the through hole 5 are on the side where the terminal is inserted. You may set the extraction direction by the press of the through-hole 5 so that chamfering or a round may be formed in a corner part.
In that case, even when the dimensional error of the terminal 3 press-fitted into the first and second positioning holes 5a and 5b is more suitable, the insertion can be easily performed, the pressing force accompanying the insertion can be reduced, and the insertion workability is improved. it can.

Further, the PCB 4 is formed with a second positioning hole 5b capable of restricting the movement of the connector base 2 in the rotation direction with the terminal 3 inserted into the through-hole hole 5.
As shown in FIG. 2, the second positioning hole 5b is formed at a distant position separating the plurality of through holes 5 along the arrow X direction. Specifically, the distance between the two is increased. It is formed at one end and the other end in the direction of the arrow X, that is, formed at two locations on both ends.
As shown in FIG. 2, the second positioning holes 5b and 5b are formed such that the dimension in the Y direction is equal to or less than the thickness dimension of the PCB insertion portion 3a, and the dimension in the X direction is the width dimension of the PCB insertion portion 3a. A larger ellipse is formed in the X direction.
Note that one second positioning hole 5b may be formed at one end in the X direction. In that case, the first positioning hole may be formed instead of the one second positioning hole 5b. The second positioning holes 5b are formed at both ends in the X direction, that is, at the outermost side. However, the second positioning holes 5b may be in the vicinity of the end portion, and may be in a position where the distance between the two becomes long.
Moreover, although the 2nd positioning hole 5b in this Embodiment is provided in the row | line | column and step which were most separated, you may provide in the row | line | column which was the same step | paragraph apart.
Further, the through holes 5 excluding the first and second positioning holes 5a and 5b are formed to dimensions that allow the inserted terminals 3 to be loosely fitted in the X direction and the Y direction.

In the mounting structure of the connector with terminals to the PCB according to the first embodiment as described above, when the PCB insertion portions 3a of the plurality of terminals 3 are inserted into the plurality of through holes 5 of the PCB 4, the connector base 2 is The positioning holes 5a restrict the movement in the X direction and the Y direction, and the two second positioning holes 5b restrict the movement in the rotational direction, thereby positioning the connector 1 with a terminal.
The plurality of terminals 3 can be mounted on the PCB 4 in a state where the connector 1 with terminals is positioned on the PCB 4 by soldering, for example.

In addition, the mounting structure of the connector with a terminal on the PCB according to the first embodiment has a terminal insertion because the PCB insertion portion 3a of the terminal 3 is press-fitted into the first and second positioning holes 5a and 5b. The connector 2 can be temporarily fixed to the PCB 4 and can be positioned reliably.
Therefore, there is no need for a special positioning portion other than the terminal 3 as in the conventional example, and the manufacturing is simple and the cost can be reduced.

As a modification of the first embodiment, although not shown in the drawings, when a plurality of through holes 5 are provided in the Y direction, the second positioning hole is formed at a position far from the first positioning hole 5a in the Y direction. The movement of the inserted terminal 3 in the X direction may be restricted to restrict the movement of the connector 1 with terminal in the rotational direction.
A second positioning hole (not shown) formed at a position far from the first positioning hole 5a in the Y direction is formed so that the dimension in the X direction is equal to or less than the width dimension of the PCB insertion portion 3a. Is formed in a substantially oval shape that is larger than the thickness dimension of the PCB insertion portion 3a and is long in the Y direction.
In short, since the position in the X and Y directions is determined by the first positioning hole 5a, the position of the second positioning hole only needs to be determined. For this purpose, a line connecting the first and second positioning holes and What is necessary is just to form the width dimension of the 2nd positioning hole of the orthogonal direction to be equal to or more than the width dimension of the PCB insertion portion 3a.

Further, the second embodiment of the present invention will be described with reference to FIG. 3. The plurality of through holes 15 formed in the PCB 14 have first control holes 15 a that can control the movement of the inserted terminals 3 in the X direction. Is formed.
At least one of the plurality of through-holes 15 is formed with a dimension that can restrict the movement of the inserted terminal 3 in the X direction. That is, as shown in FIG. 3, the first description hole 15a is formed such that the dimension in the X direction is equal to or less than the width dimension of the PCB insertion portion 3a, and the dimension in the Y direction is the thickness dimension of the PCB insertion portion 3a. It is formed in a larger oval shape that is larger in the Y direction.

Further, in the through hole 15 of the PCB 14 shown in FIG. 3, a second restriction hole 15b capable of restricting the movement of the inserted connector terminal 3 in the Y direction is formed.
The second restricting hole 15b is formed at a distant position across the plurality of through holes 15, and specifically, both ends of one end and the other end in the X direction so that the distance between them is long. Formed in two places on the side, the dimension in the Y direction is equal to or less than the thickness dimension of the PCB insertion part 3a, and the dimension in the X direction is larger than the width dimension of the PCB insertion part 3a. It is formed in a shape.

In the mounting structure of the connector with terminals to the PCB of the second embodiment as described above, when the PCB insertion portions 3a of the plurality of terminals 3 are inserted into the plurality of through holes 15 of the PCB 14, two connector bases 2 are provided. The second restriction hole 15b restricts the movement in the Y direction, and in this state, the movement in the X direction is restricted by the single first restriction hole 15a. At the same time, the movement in the Y direction is restricted by the two second restriction holes 15b.
Thereby, the connector 1 with a terminal is positioned by restricting movement in the X direction and the Y direction.
The plurality of terminals 3 can be mounted on the PCB 14 in a state where the connector 1 with terminals is positioned on the PCB 14 by soldering, for example.

  Moreover, the mounting structure of the connector with terminals on the PCB according to the second embodiment has a terminal insertion because the PCB insertion portion 3a of the terminal 3 is press-fitted into the first and second restriction holes 15a and 15b. The connector 1 can be temporarily fixed to the PCB 14 and can be positioned reliably.

It is a disassembled perspective view of the connector with a terminal regarding this invention, and PCB. It is a top view explaining the 1st Embodiment of this invention. It is a top view explaining the 2nd Embodiment of this invention. It is a perspective view of the conventional connector with a terminal. It is principal part sectional drawing of the connector with a terminal to the conventional PCB.

Explanation of symbols

1 Connector with terminal 2 Connector base 3 Terminal 3a PCB insertion part
4 PCB of the first embodiment
5 Through-hole 5a 1st positioning hole 5b 2nd positioning hole 14 PCB of 2nd Embodiment

Claims (10)

  A connector base having a plurality of terminals erected, and a PCB (printed wiring board) having a plurality of through holes into which the plurality of terminals can be inserted, wherein the plurality of through holes are in the X direction of the inserted terminals. And a first positioning hole capable of restricting movement in the Y direction and a second positioning hole capable of restricting movement in the rotational direction of the connector base with the terminal inserted. Mounting structure for connectors with terminals.   2. The PCB according to claim 1, wherein the through holes excluding the first and second positioning holes are formed to have dimensions that allow the inserted terminals to be loosely fitted in the X and Y directions. Mounting structure of connector with terminal.   The structure for mounting a connector with a terminal on a PCB according to claim 1, wherein the second positioning hole is formed at a position separating at least a plurality of the through holes from the first restriction hole.   A plurality of the plurality of terminals are formed along the X direction, and the second positioning hole is formed at a position distant from the first positioning hole in the X direction with at least a plurality of the through holes inserted therein. 4. The mounting structure of a connector with a terminal on a PCB according to claim 3, wherein the terminal is formed to have a size capable of restricting the movement in the Y direction and the movement in the rotation direction of the terminal.   The mounting structure for a connector with a terminal on a PCB according to claim 4, wherein at least two of the plurality of through holes located on both ends in the X direction are the second positioning holes.   The plurality of terminals are formed in a plurality of stages along the Y direction, and at least one of the plurality of through holes at a position spaced in the Y direction from the first positioning hole serves as the second positioning hole. 4. The mounting structure for a connector with a terminal on a PCB according to claim 3, wherein the positioning hole is formed to have a dimension capable of restricting the movement in the Y direction and the movement in the rotation direction of the inserted terminal.   A connector base having a plurality of terminals erected, and a PCB (printed wiring board) having a plurality of through holes into which the plurality of terminals can be inserted, wherein the through holes allow movement of the inserted terminals in the X direction. It has a first restriction hole that can be restricted and a second restriction hole that can restrict the movement of the inserted terminal in the Y direction, and the through hole excluding the first and second restriction holes is the inserted terminal. A connector mounting structure with a terminal on a PCB, wherein the connector is formed in a size that can be loosely fitted in the X direction and the Y direction.   A plurality of the plurality of terminals are formed along the X direction, and the first restriction hole is formed by at least one of the plurality of through holes, and the movement of the inserted terminal in the X direction is controlled. At least two of the plurality of through-holes on both end sides in the X direction at a position far from the first restriction hole in the X direction and having at least the plurality of through holes separated from each other. 8. The PCB according to claim 7, wherein the PCB is a second restriction hole, and the at least two second restriction holes are formed to have a dimension capable of restricting movement of the inserted terminal in the Y direction. Mounting structure of connectors with terminals to   The structure for mounting a connector with a terminal on a PCB according to claim 1, wherein the terminal is chamfered or rounded at a tip portion. 10. The first and second positioning holes or the first and second restricting holes are chamfered or rounded at a corner portion on the side where the terminal is inserted. A mounting structure of a connector with a terminal on the PCB according to any one of the above.

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