JPH07282924A - Connector for printed circuit board - Google Patents

Abstract

PURPOSE:To avoid concentration of a circuit pattern in a mounting position on a printed circuit board by bisecting a male connector and housing male contacts half the number of female contacts therein, thus constituting a pair of connectors. CONSTITUTION:A socket housing 2 is fixed on a printed circuit board 13. The terminal of a female contact 3 is soldered to a circuit pattern at the reverse surface via a fixing hole formed on the board 13. Meanwhile, in a male connector 14, a housing main body 17 is secured on another printed circuit board 21, to be soldered to a pattern at the reverse surface via a fixing hole formed on the board 21. When the lower ends of edges 21D of the board 21 are inserted into openings 9b formed at the upper ends of guide rails 9 and are descended at the time of connection of a female connector 1 to the male connector 14, plug inserting portions 18 of the connectors 14 are intruded inside a receiving groove 4 formed on the connector 1, whereby a connection portion 16a is connected to a connecting piece 3b. At this time, a hook 20 of a lock mechanism is engaged with the lower end 12a of an engaging portion 10 at the upper surface 6 of the housing 2 so as to be locked, thus avoiding concentration of a circuit pattern.

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 particularly, 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.

As described above, the printed circuit board connector of this type currently used is such that the female contact 5 accommodated in the female connector 1 and the male contact 9 accommodated in the male connector 7. The number of poles is set to the same number, and both connectors 1 and 7 are formed with substantially the same width.

[0005]

However, when used, the contact 9a of the male contact 9 of the male connector 7 is used.
Is inserted into the receiving groove 4 of the female connector 1,
The female contacts 5a of the female contact 5 are electrically connected to each other, but the guide guide for fitting the male connector 7 into the female connector 1 is only between the two connectors 1 and 7. is there.

Therefore, the male connector 7 is attached to the female connector 1.
When inserting the male contact 9, the male contact 9 is often inserted into the female contact 5 in a state in which the male contact 9 is not in the same axis line with respect to the female contact 5 but is inclined in the width direction. As a result, the contact 9a of the male contact 9
An abnormal load, a so-called twisting force, may be applied to the contact 9a to deform or damage it, 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.

The male connector 7 is fixed to the edge 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.
The male contacts 9 are formed in a zigzag shape by increasing the number of cores. Therefore, the land pattern, which is a portion to which the terminal portion is soldered, is densely arranged on the edge portion of the printed circuit board 10.

Therefore, the land pattern formed on the end edge side of the printed circuit board 10 cannot pass the circuit pattern between the land patterns formed on the deep edge side, and the circuit pattern of this land pattern is not formed. This means that the land pattern on the outer side, that is, the edge side and the edge of the printed circuit board 10 must be printed in a very limited area. Therefore, there is a problem that the width of the circuit pattern becomes small and printing cannot be performed, the male connector 7 cannot be arranged at the edge portion of the printed circuit board 10, and the degree of freedom of the installation position is extremely limited.

Further, the female connector 1 and the male connector 7 are
After the connection, no consideration was given to measures against disconnection against mechanical factors such as vibration and shock, so there was a risk of accidental removal.

[0010]

The present invention has been made to solve the above-mentioned conventional problems, and a load such as a twisting force acts on the male contact when the male connector is inserted and removed. The present invention aims to provide a male connector and a male contact that are not damaged or deformed, and can be mounted at any position on a printed circuit board where wiring is desired. The gist is a connector for connecting orthogonal printed circuit boards, in which one male or female connector mounted on the edge of the printed circuit board has fewer contacts than the other female or male connector connected to this connector. A connector for a printed circuit board, characterized in that when it is housed and formed in a narrow width, the one connector is divided into the other connector for fitting connection. A.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in FIGS. 1 is a perspective view of the 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 same after connection, and FIG. FIG. 5 is a perspective view of a female contact that is attached to a female connector that constitutes the printed circuit board connector, and FIG. 6 is a perspective view of a male connector that constitutes the printed circuit board connector. 7 is a perspective view of the same male connector viewed from different directions, and FIG. 8 is a plan view of a printed circuit board on which the same male connector is mounted.

1 to 8, reference numeral 1 denotes a female connector, which is a long rectangular parallelepiped socket housing 2 made of an insulating material, and a plurality of female housings housed separately in the socket housing 2. Shape contact 3 and.

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 an expanding inclined surface 5. 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 facing surface of the receiving groove 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 denotes a pair of guide rails having a U-shaped predetermined height, 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 being bent 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 lower end of the flat part 3a is connected with the terminal part 3c. 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 and fixing it.
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 formed 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 separated male connectors 14, 14
The male contacts 16 of ½ of the total number of the female contacts 3 mounted on the female connector 1 are housed in each of the two male connectors 14, 14 and one female connector 1. It constitutes 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 protrudes from the front surface of the housing body 17, and an upper surface 20a of the hook portion 20 stands upright on the upper surface 6 of the socket housing 2 and a 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 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.

As shown in FIG. 8, the circuit pattern 22 printed on the back surface of the printed circuit board 21 has edges for connecting the terminal portions 16b of the male contacts 16 along the edge 21B of the printed board 21, respectively. The land pattern 22A on the 21B side and the land pattern 22B on the deep edge portion are printed in a staggered pattern, and the lead patterns 22a of the land pattern 22A formed on the edge 21B side 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.

Contrary to the above, when pulling out the male connector 14 from the female connector 1, first pulling out the printed board 21 of the male connector 14 with the engaging 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.

[0026]

As described above, the printed circuit board connector according to the present invention is a connector for connecting orthogonal printed circuit boards, and one male or female connector to be mounted on the edge portion of the printed circuit board is provided. When the number of contacts smaller than the number of contacts of the other female or male connector to be connected thereto is accommodated to form a narrow width, the one connector is divided into the other connector to be fitted and connected. As a result, the circuit pattern will not be crowded at the connector mounting position on the printed circuit board. Therefore,
The circuit pattern printed on the printed circuit board can be easily printed and can be mounted at any position on the edge portion. Also, on the upper surface of the other connector, at both ends in the longitudinal direction deviated from the position where it is fitted with the one connector,
Since a pair of guide rails for inserting the both side edges of the printed circuit board on which the one connector is mounted are provided upright, a load such as a twisting force does not act on the male connector when the connector is inserted into or removed from the female connector, It is possible to prevent damage and deformation of the male connector and the male contact, and maintain good electrical connection for a long period of time. Furthermore, since a locking portion is provided upright on the upper surface of the other connector, and one connector is provided with a hook portion that engages with the locking portion at the time of fitting connection with the other connector, When the connector and male connector are mated, they are locked by the lock mechanism, so there is no accidental extraction due to mechanical factors due to vibration or shock, and the work of fixing the printed circuit board to which the male connector is fixed to the mechanical chassis by screwing etc. Since it does not need space on the plane, it does not interfere with other parts to be mounted. Further, since the contact portion of the male contact of the male connector is formed into a card-like shape which is substantially flush with the plug insertion portion and has no unevenness, the male contact is twisted when inserting / removing the female connector. Since no load such as force is applied, the durability of the male contact is improved, and the reliability of electrical connection is improved.

[Brief description of 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 longitudinal sectional view of a main part of FIG.

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)

[Claims] 1. A connector for connecting orthogonal printed circuit boards, wherein one male or female connector mounted on an edge portion of the printed circuit board has a smaller number of contacts than the other female or male connector connected thereto. A connector for a printed circuit board, characterized in that when the contact is housed and formed in a narrow width, the one connector is divided into the other connector to be fitted and connected. 2. A pair of guides for inserting both side edges of a printed circuit board on which the one connector is mounted at both ends of a top surface of the other connector in a longitudinal direction deviated from a position where the one connector is fitted. The printed circuit board connector according to claim 1, wherein rails are provided upright. 3. A locking portion is provided upright on the upper surface of the other connector, and one connector is provided with a hook portion that engages with the locking portion when mating with the other connector. The printed circuit board connector according to claim 1 or 2. 4. The contact part of the male contact of the male connector is formed into a card-like shape which is substantially flush with the plug insertion part and has no unevenness.
Alternatively, the printed circuit board connector according to claim 3.