JPH0127278Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a connector, and particularly to a so-called board-to-board connector for printed circuit boards used in electrical equipment such as video and audio equipment.

(b) Prior art Conventionally, this type of connector has been designed by assembling and arranging a printed circuit board with a socket attached and a printed circuit board with a plug attached horizontally or orthogonally, and electrically connecting the connecting terminals of both. Ta. In this state, both are in a fixed state, and maintenance such as checking the wiring condition of the circuit arranged on the printed circuit board is extremely difficult.

(c) Purpose The present invention eliminates these drawbacks and provides a connector that can easily maintain the circuits etc. arranged on a printed circuit board and that can maintain a stable electrical connection state. The purpose is to

(D) Structure Therefore, the features of the present invention are that the socket body is formed into a substantially rectangular parallelepiped with an open front part, and fitting holes are bored at predetermined positions on the left and right side parts, and A notch is formed in the
The plug body has left and right side parts that removably fit into the notch of the socket body, and a shaft part that fits into the fitting hole of the socket body projects from the tip of each of the empty side parts. A protruding cam part, which has an axis of the shaft part as an eccentric axis and is eccentric in the direction of the fitting operation, and is provided with a connecting terminal to which the connecting terminal of the socket body is pressed, is arranged between the side parts. The plug is pivotally attached to the socket so as to be able to swing 90 degrees in a state where the shaft portion of the plug is fitted into the fitting hole of the socket body.

(E) Embodiments The present invention will be explained in detail below based on illustrated embodiments.

Figures 1 and 2 show the connector of the present invention.
2 is a socket, and 2 is a plug, which are attached to printed circuit boards 3 and 4, respectively, and their connecting terminals 5 and 6 are electrically connected.

The socket body 7 of the socket 1 is formed into a substantially rectangular parallelepiped with an open front part 8.
A fitting hole portion 10 is formed near the front end of the left and right side portions 9, respectively. The fitting hole 10 has a keyhole shape with a bulging hole 10a at the top,
A tapered surface 9b reaching the fitting hole 10 is formed on the side surface 9 near the front surface 8. Further, a notch 12 is formed in the upper surface 11 of the socket main body 7. In the illustrated example, the cutout portions 12 are a pair of groove portions formed near both ends of the upper surface portion 11 closer to the side surface portion 9. A plurality of connection terminals 5 bent into a dogleg shape are attached to the socket body 7. Note that the cutout portion 12 may be formed by cutting out the upper surface portion 11 in a U-shape.

Specifically, the terminal half is housed inside the socket main body 7 near the upper surface 11 with the bent portion as a boundary,
The socket 1 is fixed to the printed circuit board 3 by exposing the other terminal half on the rear surface 13 side, inserting the exposed terminal tips into the plurality of holes 14 bored in the printed circuit board 3, and soldering them. At the same time, the connection terminal 5 is connected to a circuit arranged on the printed circuit board 3. The socket body 7 and the plug body 16, which will be described later, are molded from synthetic resin such as polybutylene terephthalate. Note that a groove 15 is formed in the side surface 9 to allow the socket body 7 to be removed from the mold when forming the socket body 7.

On the other hand, the plug body 16 of the plug 2 has left and right side portions 17 that are removably fitted into the notch portion 12 of the socket body 7, and the side portions 17 have left and right side portions 17 at which the socket body 7 is fitted. A shaft portion 18 that fits into the matching hole portion 10 is provided in a protruding manner. As shown in FIG. 4, the shaft portion 18 is protruded in the shape of a keyhole and has a bulging portion 18a in the lateral direction corresponding to the fitting hole portion 10, and the bulging portion 18a is attached to the shaft. Part body 1
It is formed to have a smaller protrusion dimension than 8b.

Further, the shaft main body 18b has a tapered surface 1 corresponding to the tapered surface 9b formed on the socket main body 7.
8c is formed as shown in the figure.

Reference numeral 19 denotes a protruding cam portion formed to connect the side surface portions 17, and the bottom surface portion 20 is connected thereto. The protruding cam portion 19 is connected to the shaft portion 1.
8 is an eccentric axis, and is eccentric in the fitting operation direction for fitting the shaft portion 18 into the fitting hole portion 10 of the socket body 7. . A plurality of grooves 21 are formed in the protruding cam part 19 and the bottom part 20 at predetermined intervals in the axial direction.
A hole 22 is bored at each side end. A plurality of connection terminals 6 bent as shown in the figure are fitted into the grooves 21, and one end thereof is inserted into the hole 22 and then press-fitted into the plurality of holes 23 drilled in the printed circuit board 4. At the same time, it is fixed to the printed circuit board 4 by soldering and connected to a circuit provided on the printed circuit board 4.

Socket 1 and plug 2 configured in this way
To explain the assembly operation, first, socket 1
The printed circuit board 3 with the plug 2 attached thereto is held in a horizontal state, while the printed circuit board 4 with the plug 2 attached thereon is held horizontally.
is held horizontally on the front surface 8 side of the socket body 7, and then swings the plug 2 in the direction of the arrow to fit the shaft body 18b of the plug 2 into the fitting hole 10 of the socket 1. . In this state,
The plug 2 is pivotably attached to the socket body 7 and a preload is applied between the connection terminals 5 and 6. Further, both connection terminals 5 and 6 are in contact at the position of the protruding cam portion 19, as shown in FIG.

Next, the printed circuit board 4 (plug 2) is swung upward. At this time, the side surface 17 of the plug 2 fits into the notch 12 of the socket 1, and is held in a vertical state swung 90 degrees. . In this state, the tip of the connecting terminal 5 is pushed upward as shown by the imaginary line by the protruding cam portion 19 while in contact with the connecting terminal 6, and both connecting terminals 5 and 6 are brought into a high voltage contact state. Become. Furthermore, the bulging protrusion 18a fits into the bulging hole 10a, thereby preventing both from coming off. The connector of the present invention is put into use in this manner, but when checking the wiring condition of the circuits on the printed circuit boards 3 and 4, the printed circuit board 4 (plug 2) is inserted in the opposite direction to the operating direction. All you have to do is sway it.

Moreover, FIG. 7 and FIG. 8 show other embodiments,
The connection terminals 5 of the socket 1 are arranged in a staggered manner with steps in the vertical direction, and the connection terminals 6 of the plug 2 are arranged on a protruding cam portion 19 having an unevenness corresponding to the connection terminals 5. The connecting terminals 5 and 6 are efficiently arranged in the space provided.

According to the effect of the embodiment of the present invention, the tapered surface 9b and the tapered surface 18c are formed on the side surface portion 9 and the shaft portion 18, so that the operation of assembling and disassembling the socket 1 and the plug 2 can be performed smoothly.

(f) Effects Since the present invention is constructed as described above, the assembly operation is simple, the connecting terminals of both the socket and the plug can be easily connected, and by swinging the plug 90 degrees, the printed circuit board can be connected easily. acts as a rotating moment arm, so both connection terminals can be held in high-voltage contact with light work, and
Since the bulging protrusion fits into the bulging hole, it is possible to stably maintain the high voltage contact state of the connection terminal.
Further, since the plug (printed circuit board) can be swung, maintenance such as checking the wiring condition of the circuit arranged on the printed circuit board is easy to perform.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is an exploded perspective view, Figure 3 is a cross-sectional side view of the socket, Figure 4 is a side view of the plug, Figure 5 is a cross-sectional side view of the same, and Figure 6 is a cross-sectional side view explaining the contact state of the connection terminal. , FIG. 7 is a cross-sectional front view of a socket according to another embodiment, and FIG. 8 is a cross-sectional side view of a plug according to another embodiment. 1... Socket, 2... Plug, 3, 4... Printed circuit board, 5, 6... Connection terminal, 7... Socket body, 8... Front part, 9, 17... Side part, 1
0...Fitting hole portion, 10a...Bulging hole portion, 10b,
18c...Tapered surface, 11...Top surface portion, 12...
Groove portion, 16... Plug body, 18... Shaft portion, 18
a...Bulging protrusion, 18b...Shaft main body, 19...
Protruding cam part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a connector consisting of a socket and a plug that are each attached to a printed circuit board, and the connection terminals of both are electrically connected, the socket body is formed into a substantially rectangular parallelepiped with an open front. , fitting holes are formed at predetermined positions on the left and right side surfaces, and a notch is formed on the top surface,
On the other hand, the plug body has left and right side parts that removably fit into the notch of the socket body, and a shaft part that fits into the fitting hole of the socket body is provided at the tip end of each side part. A protruding cam portion that is provided with a connecting terminal that is provided with a connecting terminal that is protruded, has an axis of the shaft portion as an eccentric axis, is eccentric in the fitting operation direction, and is pressed into contact with a connecting terminal of the socket main body, is attached to the side surface portion. The connector is formed between the socket body and the socket body, and the plug is pivotally attached to the socket so as to be able to swing 90 degrees in a state where the shaft part of the plug is fitted into the fitting hole of the socket body. (2) The fitting hole of the socket has a keyhole shape with a bulging hole at the top, and the shaft of the plug has a bulge in the lateral direction corresponding to the fitting hole. The plug is provided in a keyhole shape having a protrusion, and the protrusion has a smaller protrusion dimension than the shaft main body, and when the plug is assembled to the socket and swung 90 degrees, Utility model registration claim 1, characterized in that the bulging protrusion fits into the exit hole to prevent both from separating.
Connectors listed in section.