JP2678971B2 - Printed circuit board 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 printed circuit board connector for electrically connecting two orthogonal printed circuit boards, and more specifically, one of the connectors is mounted on an edge portion of the printed circuit board. The present invention relates to a printed circuit board connector.

[0002]

2. Description of the Related Art Conventionally, as this type of printed circuit board connector, there is one having a structure as shown in FIG. That is,
In the figure, reference numeral 1 denotes a female connector, in which an elongated rectangular parallelepiped-shaped socket housing 2 is formed with a receiving groove 4 which opens to an upper surface 3 along the longitudinal direction thereof. A plurality of female contacts 5 are housed in parallel along the longitudinal direction. Then, the female connector 1 is fixed to a horizontally arranged printed circuit board 6, and a terminal portion (not shown) of the female contact 5 is soldered to a circuit pattern on the back surface of the printed circuit board 6.

On the other hand, like the socket housing 2, the male connector 7 has a plurality of male contacts 9 housed in an elongated rectangular parallelepiped plug housing 8 along the longitudinal direction. The contactor 9a and the terminal portion (not shown) of the male contact 9 respectively project from side surfaces of the plug housing 8 which are orthogonal to each other. The male connector 7 is fixed to the edge portion of the vertically arranged printed circuit board 10, and the terminal portion of the male contact 9 is soldered to the circuit pattern on the back surface of the printed circuit board 10.

[0004]

As described above, the male connector 7 is fixed to the edge portion of the printed circuit board 10, and the terminal portion of the male contact 9 is soldered to the circuit pattern on the back surface of the printed circuit board 10. However, due to the increase in the number of cores of the male contact 9, the land pattern, which is the portion to which the terminal portion is soldered, is densely gathered at the edge portion of the printed circuit board 10.

Therefore, the lead pattern of the land pattern formed on the end edge side of the printed board 10 cannot be passed between the land patterns formed on the deep edge side, and the land pattern formed on the end edge side cannot be passed. It is necessary to print on a very limited area up to the outer side, that is, the land pattern on the edge side and the edge of the printed circuit board 10.

However, since the area is small, the lead patterns of all the land patterns formed on the edge side cannot be printed, and the male connector 7 is mounted only at a position away from the edge of the printed circuit board 10. However, there is a problem that the degree of freedom of the installation place is extremely limited.

In use, the contact 9a of the male contact 9 of the male connector 7 is inserted into the receiving groove 4 of the female connector 1 and comes into contact with the contact 5a of the female contact 5 of the female connector 1. Although electrically connected, the guides for fitting the male connector 7 to the female connector 1 are only between the two connectors 1 and 7. Therefore, when the male connector 7 is inserted into the female connector 1, the male contacts 9 are not aligned with each other with respect to the female contacts 5, but the male contacts 9 are inserted into the female contacts 5 in a state of being inclined in the width direction. Often inserted.

As a result, the contact 9a of the male contact 9
An abnormal load, a so-called twisting force, is applied to the contact 9a, which may deform or damage the contact 9a, resulting in contact failure or the like. In particular, since the contactor 9a of the male contact 9 has an uneven shape even if it is provided so as to project from the plug housing 8, such a defect is more likely to occur. Further, since the female connector 1 and the male connector 7 were not considered for measures against disconnection against factors such as vibration and shock after connection, there was a risk of unintentional disconnection.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and can easily print a circuit pattern printed on a printed circuit board. In addition, the object is to provide a connector that can be mounted at any position on the edge portion, and the gist thereof is a connector for connecting orthogonal printed circuit boards, which is mounted on the edge portion of the printed circuit board. When a set of connectors is composed of a plurality of male or female connectors and one female or male connector to be connected to the male or female connectors, it is also necessary to provide an edge portion of a printed circuit board on which the plurality of male or female connectors are mounted. A land pattern for connecting the terminal portions of the respective contacts to the printed circuit pattern is formed in a zigzag pattern alternately on the edge side and the deep edge side, and the lead pattern of the land pattern formed on the edge side. Is distributed to the left and right from the center and passes through the gap between the land pattern and the edge of the printed circuit board, and the lead pattern of the land pattern formed on the deep edge side is almost linear, and the other end of the printed circuit board is The connector for a printed circuit board is characterized in that the connector is extended in the direction, and the plurality of male or female connectors are fitted and connected to the one female or male connector.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the embodiments shown in FIGS. 1 to 8. In FIG. 1, reference numeral 1 denotes a female connector, which is a long rectangular parallelepiped socket housing formed of an insulating material. 2 and a plurality of female contacts 3 housed separately in the socket housing 2.

Reference numeral 4 denotes a receiving groove having a predetermined depth and a predetermined width, which is formed in the center along the longitudinal direction of the socket housing 2, and the upper end of the receiving groove 4 is provided with a sloping surface 5 that expands. Is opened on the upper surface 6 of the socket housing 2. In addition, a plurality of cavities 7 for accommodating the female contacts 3 individually separated from each other are formed in a zigzag shape by the isolation walls 8 on the opposing surfaces of the receiving grooves 4 in the socket housing 2. There is. The width of the receiving groove 4 of the socket housing 2 is set to be substantially the same as the thickness of the plug insertion portion of the male contact described later.

Reference numeral 9 designates a pair of guide rails having a predetermined height which is U-shaped in a plan view, and which is the upper surface 6 of the socket housing 2.
Are formed at both ends close to one side edge in the longitudinal direction, and the side surface opening grooves 9a, 9a stand upright so as to face each other. In addition, the guide rail 9
The inner width of the side surface opening groove 9a is set to be substantially the same as the thickness of the printed circuit board to which a male connector to be described later is fixed.

Reference numeral 10 denotes an upper surface 6 of the socket housing 2.
In the locking portion as a lock mechanism formed in (1), the guide rail 9 is upright on the opposite side of the receiving groove 4 from the position where the guide rail 9 is upright. The locking portion 10 has a gate-like shape in which the upper ends of a pair of spaced columns 11 and 11 are connected by a locking plate 12, and the lower end surface 12a thereof is horizontally formed.

As shown in FIG. 5, the female contact 3 is formed by punching and bending a conductive metal thin plate such as phosphor bronze, and the flat portion 3a in the shape of a strip plate has this flat portion at its upper end. After bending to the side of 3a, the contact piece 3b which is bent in a dogleg shape and added with spring property is connected, and the terminal portion 3c is connected to the lower end of the flat portion 3a. Part 3
Barrel-shaped press-fitting claws 3d fixed to the socket housing 2 are provided on both sides of the flat portion 3a in the vicinity of c.

Therefore, the female contact 3 is fixed by fitting a press-fitting claw 3d into a slit formed on the side surface of the hollow portion 7 of the socket housing 2.
The terminal portion 3c of the above projects from the bottom of the void portion 7. And
The female connector 1 includes a socket housing 2 fixed on a printed circuit board 13 arranged horizontally, and a female contact 3
The terminal portion 3c of is inserted into the mounting hole of the printed circuit board 13,
Solder to a circuit pattern (not shown) on the back surface of the printed circuit board 13.

Reference numerals 14 and 14 denote male connectors which can be fitted into the female connector 1, and as shown in FIGS. 4, 6 and 7, a plug housing 15 made of an insulating material and a plug housing 15 embedded in the plug housing 15. Multiple male contacts 16 installed
Each male contact 16 has a terminal portion 1 bent at one end of a strip-shaped contact portion 16a into an L shape.
It has a shape in which 6b is connected.

The two male connectors 14 and 14 have a total number of female contacts 3 mounted on the female connector 1 of 1
/ 2 male contacts 16 are stored,
The two male connectors 14 and 14 and one female connector 1
And constitute a set of connectors.

The plug housing 15 is composed of a rectangular parallelepiped housing body 17 and a plug insertion portion 18 connected to the lower surface of the housing main body 17 through an inverted triangular prism portion. The thickness of the plug insertion portion 18 is The width of the receiving groove 4 of the female connector 1 is set to be substantially the same. The contact portions 16a of the male contacts 16 are exposed and fixed on the surfaces 18a of the plug insertion portion 18 facing each other so as to be substantially flush with the surface 18a of the plug insertion portion 18. The portion 16b is projected in a staggered manner from the rear surface of the housing body 17, and the plurality of dummy pins 19 are also provided.
Has been planted.

Reference numeral 20 denotes a hook portion serving as the lock mechanism, which projects from the front surface of the housing body 17, and the upper surface 20a of the hook portion 20 stands upright on the upper surface 6 of the socket housing 2 and the lower end surface of the locking portion 10. It is locked by engaging with 12a. Further, the lower portion of the front surface of the hook portion 20 is formed as an inclined surface 20b toward the plug insertion portion 18 and serves as a guide for facilitating the engagement with the locking portion 10.

Therefore, the male connector 14 is brought into close contact with the printed circuit board 21 on which the housing main body 17 is vertically arranged, and the terminal portion 16b of the male contact 16 is inserted into the mounting hole of the printed circuit board 21, and the rear surface thereof. Solder to each of the circuit patterns 22 printed on. At this time, the dummy pins 19 are also soldered at the same time, and the plug housing 1
5 is fixed to the edge portion 21A of the printed board 21.

The circuit pattern 22 printed on the back surface of the printed circuit board 21 is, as shown in FIG. 8, an edge for connecting the terminal portions 16b of the male contacts 16 along the edge 21B of the printed circuit board 21, respectively. The land pattern 22A on the side of 21B and the land pattern 22B on the side of the deep edge are printed in a staggered manner, and the lead patterns 22a of the land pattern 22A formed on the side of the edge 21B are distributed from the center to the left and right. Passing between the gap portion 21C between the land pattern 22A and the edge 21B of the printed board 21,
Further, the lead patterns 22b of the land patterns 22B formed on the deep edge side extend substantially linearly in the direction of the other end of the printed circuit board 21 without detouring.

Next, the female connector 1 and the male connector 1
4, the lower ends of both side edges 21D of the printed board 21 on which the male connector 14 is mounted are inserted into the upper opening 9b of the guide rail 9 of the female connector 1 and lowered.
The plug insertion portion 18 of the male connector 14 penetrates into the receiving groove 4 of the female connector 1 to contact the contact portion 16 of the male contact 16.
a is electrically connected to the contact piece 3b of the female contact 3. Further, at this time, the hook portion 20 of the lock mechanism is locked by engaging with the lower end surface 12a of the locking portion 10 which is upright on the upper surface 6 of the socket housing 2 and is not accidentally pulled out.

On the contrary, when pulling out the male connector 14 from the female connector 1, first pulling out the printed circuit board 21 of the male connector 14 with the locking portion 10 pulled forward, the hook portion is pulled out. 20 is the lower end surface 1 of the locking portion 10.
2a, the printed board 21 rises along the guide rail 9 without tilting, the plug insertion portion 18 of the male connector 14 separates from the receiving groove 4 of the female connector 1,
The contact portion 16a of the male contact 16 is the female contact 3
Away from the contact piece 3b.

[0024]

As described above, the printed circuit board connector according to the present invention is a connector for connecting orthogonal printed circuit boards, and a plurality of male or female connectors mounted on the edge portion of the printed circuit board. When a set of connectors is formed by a single female or male connector connected to this, a circuit pattern to be printed on the edge of a printed circuit board on which the plurality of male or female connectors are mounted is printed on each contact. Land patterns connecting the respective terminal portions are alternately formed on the edge side and the deep edge side in a zigzag manner, and the lead pattern of the land pattern formed on the edge side is distributed to the left and right from the center and printed with the land pattern. The lead pattern of the land pattern formed on the deep edge side through the gap between the board and the edge of the board is almost linear, The circuit pattern printed on the printed circuit board can be easily printed because it has a structure in which the plurality of male or female connectors are fitted and connected to the one female or male connector. And can be mounted at any position on the edge. In addition, on the upper surface of one female or male connector, at both ends in the longitudinal direction deviated from the position where the male or female connector is fitted, a printed circuit board on which the plurality of male or female connectors are mounted is mounted. Since a pair of guide rails for inserting both side edges are installed upright, no load such as bending force acts on the male connector when inserting / removing to / from the female connector, and the male connector and male contact are damaged or deformed. Therefore, good electrical connection can be maintained for a long period of time. Further, a gate-shaped locking portion is erected on the upper surface of one female or male connector, and a plurality of male or female connectors are engaged with the locking portion at the time of mating connection with the one female or male connector. Since the mating hook portion is provided, it is locked by the lock mechanism when the female connector and the male connector are fitted together, and careless removal due to vibration or shock is eliminated. In addition, the contact part of the male contact of the male connector is formed into a card-like shape that is flush with the plug insertion part and has no unevenness. Since no load such as
Improving the durability of the male contact has various effects such as improving the reliability of electrical connection.

[Brief description of the drawings]

FIG. 1 is a perspective view of a printed circuit board connector according to the present invention before connection.

FIG. 2 is a perspective view of the connector during connection.

FIG. 3 is a perspective view of the connector after connection.

FIG. 4 is a vertical sectional view of a main part of FIG. 3;

FIG. 5 is a perspective view of a female contact mounted on a female connector that constitutes the printed circuit board connector.

FIG. 6 is a perspective view of a male connector that constitutes the printed circuit board connector.

FIG. 7 is a perspective view of the male connector viewed from different directions.

FIG. 8 is a plan view of a printed circuit board on which a male connector is mounted.

FIG. 9 is a perspective view of a conventional printed circuit board connector before connection.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Female connector 2 Socket housing 3 Female contact 3b Contact piece 3c Terminal part 4 Receiving groove 6 Upper surface 9 Guide rail 9a Side opening 10 Locking part 11 Strut 12 Locking plate 12a Lower end surface 13 Printed circuit board 14 Male connector 16 Male Shaped contact 16a Contact part 16b Terminal part 18 Plug insertion part 18a Surface 20 Hook part 21 Printed circuit board 21A End edge part 21B End edge 21C Gap part 21D Side edge 22 Circuit pattern 22A Land pattern 22a Lead pattern 22B Land pattern 22b Lead pattern

Claims (4)

(57) [Claims] 1. A connector for connecting orthogonal printed circuit boards, wherein a set of a plurality of male or female connectors mounted on an edge portion of the printed circuit board and one female or male connector connected thereto. By configuring the connector of
A circuit pattern to be printed on an edge portion of a printed circuit board on which the plurality of male or female connectors are mounted is formed in a zigzag pattern in which land patterns connecting the terminal portions of each contact are alternately arranged on the edge side and the deep edge side. And the lead pattern of the land pattern formed on the edge side is distributed right and left from the center and passes through the gap between the land pattern and the edge of the printed circuit board, and the land pattern formed on the deep edge side. The lead patterns are formed so as to extend substantially linearly toward the other end of the printed circuit board, and the plurality of male or female connectors are fitted and connected to the one female or male connector. A printed circuit board connector characterized by the above. 2. The plurality of male or female connectors are mounted on the upper surface of one female or male connector, at both longitudinal end portions deviated from the positions where they are fitted with the plurality of male or female connectors. The printed circuit board connector according to claim 1, wherein a pair of guide rails for inserting both side edges of the printed circuit board are provided upright. 3. A gate-shaped locking portion is provided upright on the upper surface of one female or male connector, and the plurality of male or female connectors are locked when the female or male connector is fitted and connected. 3. The printed circuit board connector according to claim 1, further comprising a hook portion that engages with the portion. 4. The print according to claim 1, wherein the contact portion of the male contact of the male connector is formed in a card-like shape which is substantially flush with the plug insertion portion and has no irregularities. Board connector.