JPH054229Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connector for electrically connecting two printed circuit boards.

[Conventional technology]

In a conventional connector of this type, as shown in FIG. 6, a socket connector 1 has a housing main body 2.
, base housing 3, and both housings 2 and 3
The electrical contact 4 consists of a female terminal part 5 to which a male terminal part (not shown) is sandwiched and electrically connected, and a female terminal part 5 to which a male terminal part (not shown) is electrically connected. It is comprised of a straight part 6 extending rearward, and a terminal part 7 hanging perpendicularly from the rear end of the straight part 6.

That is, the electric contact 4 has a horizontal L-shape, and a plurality of female terminal portions 5 are arranged in parallel at predetermined intervals within the housing body 2, and the terminal portion 7 of the electric contact 4 is arranged in parallel at predetermined intervals within the housing body 2. is embedded and fixed in the base housing 3, and the end 7a of the terminal portion 7 protrudes from the bottom of the base housing 3.

Reference numeral 8 denotes a horizontal first board on which the socket connector 1 is mounted, and a recess 10 is formed at the edge of the board 8 into which a positioning pin 9 protruding from the center of the front surface of the housing body 2 enters. A separable split substrate 12 is connected to the two through a notch 11 of a V-cut.

Therefore, the base housing 3 is fixed to the first substrate 8 using hooks 13 provided on both sides of the bottom thereof, and the end portion 7a protruding from the back surface of the substrate 8 is soldered and fixed.

Therefore, the longitudinal direction (height direction) of the housing body 2 and the female terminal portion 5 of the electric contact 4 are disposed horizontally in contact with the upper surfaces of the first board 8 and the split board 12. In this state, the end portion 7a protruding from the back surface of the board 8 is placed in a solder tank of an automatic soldering device and fixed by soldering.

However, the housing body 2 of the conventional socket connector 1 as described above is bent in advance at right angles to the base housing 3, and the housing body 2 is always in a laid-down state.

Therefore, when each end 7a protruding from the back surface of the first board 8 is dipped into a solder bath for soldering with an automatic soldering device, a split board 12 is required to be removed after soldering.

That is, since this type of socket connector 1 for connecting printed circuit boards is usually mounted on the edge of the board, the end of the housing body 2 is mounted with the end protruding from the board 8. Therefore, in order to automatically feed a printed circuit board with the socket connector 1 mounted on its top surface to the solder tank, the board needs to be large enough to protrude from the end of the housing body 2 in order to place it on the rail. Also, since it is necessary to prevent solder from rising to the part of the housing body 2, a board with an area larger than necessary, that is, a split board 1 that will be removed later.
2 was absolutely necessary.

Furthermore, since the housing main body 2 is configured in a laid down shape in advance, the male electrical contact (not shown) fixed to the second board 13 is horizontal with respect to the female terminal portion 5 of the electrical contact 4. Can only be inserted from one direction. Therefore, there have been various drawbacks such as the inability to arrange the second substrate 13 in parallel on top of the first substrate 8 and to electrically connect both substrates 8 and 13.

As a solution to these conventional drawbacks,
There is a rotatable connector disclosed in Japanese Utility Model Application Publication No. 60-136080.

[Problem that the invention attempts to solve]

However, in the device disclosed in Japanese Utility Model Application No. 60-136080, a concave groove is formed on the housing body side of the socket, and a convex groove that engages with this concave groove is formed on the plug side. This frictional fitting is designed to eliminate the restoring force of the electrical contact that occurs when the base housing side of the socket is rotated, so the fitting loosens due to vibration, etc., and the electrical If the restoring force of the contact overcomes the frictional mating force, there is a risk that the electrical connection with the plug will be cut off or there will be poor contact.On the contrary, an electrical contact with a small restoring force is used. In this case, it is thought that problems such as not being able to withstand repeated use will occur.

[Means for solving problems]

This invention was developed to solve the above-mentioned conventional problems, and even when the housing body is laid down with respect to the base housing, the restoring force of the electrical contact is applied to the connection part with the mating connector. The purpose of this is to provide a housing that does not have any adverse effects, and its gist is that it includes a housing body that houses one end of the electrical contact, and a board that houses the other end of the electrical contact. It consists of a base housing mounted on the base housing, and an electric contact mounted so as to straddle between both the housings, and the bent portion formed on the electric contact is used as a guide for the bent portion formed on the base housing to connect both the housings. The connector for a printed circuit board is connected so that it can be turned upside down, and has hooks protruding from both sides of the housing body to engage with edges of the circuit board.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to embodiments shown in FIGS. 1 to 5. Note that FIG. 1 is a perspective view of the connector according to the present invention attached to a board.
Fig. 2 is a vertical cross-sectional side view of the connector, Fig. 3 is a perspective view of the electrical contacts housed in the connector, and Fig. 4 is a perspective view of the electrical contacts housed in the connector.
FIG. 5 and FIG. 5 are explanatory diagrams showing different electrical connection states of the same connector to other boards.

In the figure, reference numeral 1 denotes a socket connector, which includes an insulating housing body 2 in the shape of a rectangular parallelepiped with a small depth relative to the height and width, an insulating base housing 3 in the shape of a rectangular parallelepiped that is short with respect to the housing body 2, and both sides. Both end portions thereof are housed in housings 2 and 3, and are comprised of an electric contact 4 as shown in FIG. 3 disposed astride between the two.

Reference numerals 5 and 5 denote hook-shaped hooks provided on both front side end surfaces of the housing body 2, which are used to stably fix the housing body 2 to the board.
A positioning pin 6 protrudes from the center between the hooks 5,5. In the figure, 7 is a bent portion formed on the electrical contact 4, and 8 is a bent portion formed on the base housing 3 to abut the bent portion 7.

Reference numeral 9 designates the female terminal portion of the electrical contact 4, which, as shown in FIG. The strip plates 10 are made to face each other, and their front sides are bent into a tapered shape so as to touch each other.

Reference numeral 12 denotes a connecting part formed at the lower end of the center of both strip plates 10, which protrudes downward.A restraining part 13 is provided on the upper part of the connecting part 12, and a locking claw 1 is provided at the rear of the restraining part 13.
4 is formed.

Reference numeral 15 denotes a straight portion of a predetermined length extending from one rear end of the strip plate 10, and a pair of locking pieces 16, 16 connected to the rear end extend upwardly so as to separate from each other from the bottom plate portion 17. It's growing.

Further, at the rear end of the bottom plate part 17, a bent part 7 of a predetermined length is formed by extending the bottom plate part 17, and at the rear part of the bent part 7, a pair of upper and lower terminal parts 18 are formed from one side. extends rearward, and a rectangular locking piece 19 stands upright on the opposite side.

That is, as described above, in the electric contact 4, the female terminal portion 9, the straight portion 15, the locking piece 16, the bent portion 7, and the terminal portion 18 are linearly connected in sequence, and the female Terminal part 9, straight part 15,
The locking piece 16 and the terminal part 18 have a structure that can be bent approximately 90 degrees at the bending part 7, and the female terminal part 9 and the straight part 15 of the plurality of electrical contacts 4
are arranged in parallel at predetermined intervals along the width direction of the housing main body 2, the connecting part 12 and the restraining part 13 are arranged in the front direction of the electric contact 4, and the locking claw 14 is arranged in the rear direction. This prevents them from slipping out in either direction.

In addition, the locking piece 16 of the electric contact 4, the bent portion 7,
The terminal portion 18 and the locking piece 19 are arranged inside the base housing 3 and are fixed by both the locking pieces 16 and 19 so as not to come off, but the bending portion 7 is placed at the position of the bending portion 8. Also, terminal section 1
The end portion 18a of the base housing 3 protrudes from the bottom of the base housing 3. At this time, the bottom surface of the housing body 2 and the top surface of the base housing 3 are spaced apart from each other by a predetermined distance so that the housing body 2 can rotate in a predetermined direction.

Reference numeral 20 denotes a first board in a horizontal state on which the socket connector 1 is mounted, and the edge of the board 20 has a recess 2 into which the positioning pin 6 of the housing body 2 enters.
1 is formed, and the base housing 3 is fixed to the first substrate 20 by a stopper leg 22 provided at the bottom thereof.

Reference numeral 23 denotes a second board electrically connected to the first board 20, and a plug connector 24 fixed to this board 23 includes an electrical contact that can be inserted into and removed from the female terminal portion 9 of the electrical contact 4. 25 male terminal portions are housed in a direction perpendicular to the plane direction of the second board 23, and a terminal portion 26 at the other end of the electrical contact 25
is soldered to the back surface of the second board 23.

Therefore, when the end portions 18a of each terminal portion 18 protruding from the back surface of the first board 20 are dipped in a solder tank of an automatic soldering device and soldered, as shown in FIGS. 1 and 4, Soldering is performed by pouring the housing main body 2 into a solder bath while standing upright with respect to the first board 20.

That is, since the housing main body 2 and the base housing 3 are connected to each other by the electric contacts 4 while maintaining the upright state, there is a margin at the edge of the board. Therefore, in this state, both ends of the board are fitted into the rails in a soldering tank of an automatic soldering device, and soldering is performed while the board is being sent.

Then, the second board 23 is placed parallel to the top of the first board 20, and the male terminal part of the electrical contact 25 of the plug connector 24 is inserted into the female terminal part 9 of the electrical contact 4 of the socket connector 1. , both electric contacts 4,
25 is electrically connected.

Next, when connecting the first board 20 in the horizontal state and the second board 23 in the vertical state, as shown in FIG.
When tilted in three directions, the bent portion 7 of the electrical contact 4 in the base housing 3 is bent by 90° by the bending portion 8, and the axes of the female terminal portion 9 and the straight portion 15 of the electrical contact 4 are aligned with the first board. It becomes parallel to 20. At this time, the hook 5 of the housing body 2 is
It is engaged with the edge portion of the substrate 20 to prevent the housing body 2 from returning to an upright state (pressing back) due to the restoring force of the bent portion 7. At the same time, the positioning pin 6 of the housing body 2 enters the notch recess 21 formed at the edge of the board 20, and positioning in the left and right direction is performed.

Therefore, the electric contact 2 of the plug connector 24 is inserted into the female terminal portion 9 of the electric contact 4 of the socket connector 1.
Insert the male terminal part of 5 and connect both electric contacts 4, 25.
However, the pressing force in the direction of the socket connector 1 when inserting the plug connector 24 is between the side surface of the hook 5 of the housing body 2 and the board 20.
The straight part 15 becomes a relatively weak structure of the electric contact 4 because it is canceled by the collision with the edge of the straight part 15.
There is no effect on the terminal portion 18 and the end portion 18a.
There is no risk of cracks occurring in the soldered portion between the board 20 and the board 20.

If the positioning pin 6 is provided protrudingly,
Due to the collision between this and the deep part of the notch recess 21, the pressing force is simultaneously canceled and the substrate 2
3. Furthermore, even when the plug connector 24 moves in a direction perpendicular to the insertion direction, the movement range is restricted by the collision between the positioning pin 6 and the groove wall of the notch recess 21, and the above-mentioned The action and effect will be further improved.

[Effect of idea]

As described above, the printed circuit board connector according to the present invention includes a housing body that houses one end of the electrical contact, and a base housing that houses the other end of the electrical contact and is mounted on the board. and,
An electric contact is mounted across the two housings, and the two housings are connected in an inverted manner using the bent portion formed on the electric contact as a guide and the bent abutment formed on the base housing. , since the housing main body has a structure in which hooks protruding from both sides to engage with the edges of the board,
(1) The housing body, mounted in a reclined manner, is securely fixed to the board and the restoring force at the bending part of the electrical contact is completely blocked, ensuring reliable electrical connection with the mating connector over a long period of time. can do. (2) The force received when mating with the mating connector is eliminated by the contact between the hook provided on the housing body and the edge of the board, so it is not transmitted to the terminal part of the electrical contact at all. There is no risk of cracks occurring in the soldered portion with the board.

(3) When soldering the terminals to the board, the housing body can be placed upright with respect to the board and the solder can be poured into the solder bath, making it possible to solder with an automatic soldering device, improving productivity. In addition, there is no need to use a split substrate as a disposable member as in the past, and the area used is small, which is economical. (4) Also, with a configuration in which a positioning pin is provided protruding from the side surface of the housing body on the hook protruding side to engage with a notch recess formed in the edge of the board, the board,
Furthermore, even when the mating connector moves in a direction perpendicular to the insertion direction, the movement range is restricted by the collision with the groove wall of the positioning pin notch recess, and the above-mentioned actions and effects are further enhanced. improves.

There are various effects.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the connector according to the present invention attached to a board, Fig. 2 is a longitudinal cross-sectional side view of the connector, Fig. 3 is a perspective view of electrical contacts housed in the connector, and Fig. 4 is a perspective view of the connector according to the present invention attached to a board. 5 and 5 are explanatory diagrams showing different electrical connection states of the same connector to other boards, and FIG. 6 is a partially cut side view of the conventional connector mounted on the board. 1...Socket connector, 2...Housing body, 3...Base housing, 4, 25...Electric contact, 5...Hook, 7...Bending part, 8...Bending part, 9...Female Terminal part, 18...Terminal part, 2
0...first board, 23...second board, 24...plug connector.

Claims (1)

[Claims for Utility Model Registration] (1) A housing body that houses one end of the electrical contact, a base housing that houses the other end of the electrical contact and is mounted on a board, and both of the above. An electric contact is mounted across the housings, and the bent portion formed on the electric contact is guided by a bent abutment portion formed on the base housing, and the two housings are connected in an inverted manner. 1. A connector for a printed circuit board, characterized in that a housing body has hooks projecting from both sides thereof to engage with the edges of the circuit board. (2) Claim 1 characterized in that a positioning pin is provided protruding from the side surface of the housing body on the hook protruding side to engage with a notch recess formed in the edge of the board.
The listed printed circuit board connector.