JPS6010285Y2 - connector device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector device, and is particularly suitable for attaching a connector to a printed circuit board.

For example, connectors are used as connection terminals for electrically connecting devices, such as when an audio-visual system is constructed by combining a television set and a video tape recorder.

However, this connector is incorporated into the system, and its specifications are standardized so that it can be connected even if the manufacturers and models of each device are different. For example, in Europe, DIN
Standards (German Industrial Standards) have been adopted.

As this type of connector (e.g., 8 pins), the configurations shown in FIGS. 1 and 2 have conventionally been used.

The connector 1 has a cylindrical connector body 2 made of synthetic resin with a molded bottom, and eight through holes 4 are bored in the center part 3 of the upper surface of the connector body, through which the connecting pins of the plug are inserted. A contact piece is mounted in the hole 4 to make electrical contact with the pin of the plug.

A pin 5 for electrically leading out the contact piece to the outside is connected to this contact piece, and this pin 5 protrudes downward from the lower surface of the connector body 2.

A circular groove 6A is formed so as to surround the center portion 3 on the upper surface of the connector 1, and a cylindrical guide cover of the plug is fitted into this groove 6A.

Note that 6B is a lock plate.

A flange 7 is provided on the upper edge of the connector main body 2.
A plurality of, for example, two
The locking pieces 8A and 8B are connected to the body portion 2A of the connector body 2.
installed on the outer surface of the

These locking pieces 8A and 8B are connected to the body portion 2A of the connector body 2.
The base portion is cantilevered and fixed to the connector body 2 so that it can be bent in the radial direction relative to the connector body 2.

Conventionally, the method shown in FIG. 3 or 5 has been used to attach the connector 1 having such a configuration to equipment as necessary.

In the case of Fig. 3, the connector 1 is mechanically fixed to the terminal board 11, and the conductor 1 for internal wiring is connected to the pin 5 of the connector 1.
2 is electrically connected by soldering.

That is, in order to mechanically fix the connector body 2, the connector body 2 is pushed into the mounting hole 13 formed in the terminal plate 11 from above, and the locking pieces 8A and 8B are pushed inwardly and bent while passing through the mounting hole 13 position. let

Here, the mounting hole 13 is connected to the connector body 2 as shown in FIG.
A portion 13A opposite to the body portion 2A (this portion is the body portion 2A)
), notches 13B and 13C corresponding to the locking pieces 8A and 8B, and notches 13D corresponding to the lock plate 6B (having a depth slightly larger than the protruding length of the lock plate 6). ).

The depth of the notches 13B and 13C is such that when the connector main body 2 is pushed into the mounting hole 13, the notches 13B and 13C
3C comes into contact with the locking pieces 8A and 8B, and when the connector main body 2 is further pushed in, the locking pieces 8B and 8
It is selected to push C inward and deflect it.

Therefore, when the connector main body 2 is pushed in to a position where the locking pieces 8A and 8B can no longer come into contact with the notches 13B and 13C, the locking pieces 8A and 8B return to the outside, thereby creating a gap between their tips and the lower surface of the flange 7. The terminal plate 11 is sandwiched and held between the terminal plates 11 and 11, thereby mechanically fixing the connector 1 to the terminal plate 11.

(Thus, the locking pieces 8A and 8B together with the flange 7 form a mount for attaching the connector 1 to the outside.

In this fixed state, a pin 5 extending from the electrical contact piece protrudes downward from the main body 2, and an internal wiring conductor 12 is soldered to this pin 5.

The connector 1 with this configuration has a flange 7 and locking pieces 8A and 8.
Since the terminal board 11 can be clamped with sufficient strength between the connector 1 and the terminal board 11, even if force is applied to the connector 1 when inserting or pulling out the plug from above the terminal board 11, this force will not be applied. It is not transmitted to the connection point between the pin 5 and the internal wiring conductor 12, and therefore there is no possibility of causing electrical continuity failure.

However, if configured as shown in Fig. 3, the internal wiring conductor 12
Soldering when connecting to pin 5 is complicated and is not suitable for mass production.

Incidentally, since small components are actually arranged at a high density on a printed circuit board, it is quite difficult to solder the wire rods to predetermined positions.

This difficulty becomes greater as the number of pins of the connector 1 increases, and there is a risk of incorrect wiring.

There is a configuration shown in FIG. 5 as a configuration that can avoid this problem.

In this case, the connector 1 itself is exactly the same in configuration as shown in FIG.
The protruding end of is connected to the conductive pattern 17 attached to the lower surface of the printed circuit board 15 by solder.

Thus, the pins 5 are electrically connected to the pattern 17 of the printed circuit board 15 by the solder 18, and the pins 5 and thus the connector 1 are mechanically fixed to the printed circuit board 15.

According to the configuration shown in FIG. 5, the pins 5 of the connector 1 can be inserted into the mounting holes 16 of the printed circuit board 15, and the solder 18 can be applied to the predetermined positions all at once using a solder dip. As a result, work efficiency can be significantly improved, and the possibility of incorrect wiring to the pin 5 can be eliminated.

However, in the configuration shown in FIG. 5, when a force is applied to the connector 1 when a plug is inserted into or removed from the connector 1, this force is applied directly to the printed circuit board 15.

Therefore, the pattern 1 attached to the printed circuit board 15
7 may be peeled off from the substrate, resulting in so-called pattern breakage.

Incidentally, the adhesion force for fixing pin 5 of connector 1 to printed circuit board 15 is determined by soldering 1 between pin 5 and pattern 17.
8, each time the plug is inserted or removed, the pattern 17 is locally strained through the solder 18 from the pin 5, thus causing mechanical fatigue in the pattern 17. It is thought that the pattern will eventually run out.

In consideration of the above points, in the present invention, while fully demonstrating the effect obtained by directly connecting the pin 5 of the connector to the conductive pattern 17 as shown in FIG. This is an attempt to propose a connector mounting device that can sufficiently reduce costs.

An embodiment of the present invention will be described in detail with reference to the drawings below.
In the figure, the connector 1 used is that described above with respect to FIGS. 1 and 2.

Therefore, in FIG. 6, parts corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals.

The pins 5 of the connector 1 are connected by solder 21 to a conductive pattern 20 attached to a printed circuit board 19.

Also, around connector 1, connect connector 1 to printed circuit board 1.
A support cylinder 22 for mechanically fixing to 9 is provided.

As shown in FIGS. 7 and 8, the support cylinder 22 has a closing plate part 23 on the distal end surface, and this closing plate part 23 has a mounting hole 13 having an inner diameter slightly larger than the outer diameter of the connector body 2. By inserting the connector main body 2 into the mounting hole 13 from above while pressing and bending the locking pieces 8A and 8B,
The closing plate portion 23 is sandwiched and held between the tips of the locking pieces 8A and 8B and the flange 7.

The mounting hole 13 has the same structure as described above with reference to FIG.

A plurality of stators 24A, for example, two stators, are provided at the lower edge of the support cylinder 22.
and 24B are provided so as to protrude downward, and by inserting the stators 24A and 24B into fixing holes 25A and 25B provided in the printed circuit board 19, the support cylinder 22 is fixed.
can be fixed to the printed circuit board 19.

In this embodiment, each of the stators 24A and 24B has a claw portion 26 having a right triangular cross section at the tip thereof, and a plate portion 27 that bends the claw portion 26 in the radial direction of the support cylinder 22 so that the lower end face 26 of the support cylinder 22 is bent. In this way, when the stators 24A and 24B are inserted into the fixing holes 25A and 25B, the oblique side portions 26A of the claw portions 26 are in sliding contact with the fixing holes 25A and 25B. It is made to pass through the fixing holes 25A and 25B, and when it has finished passing through, the oblique side portion 26A of the claw portion 26 is inserted into the fixing hole 25.
The horizontal surface portion 26B is latched to the lower surface of the closing plate portion 23 by utilizing the fact that the horizontal surface portion 26B returns to the outside by releasing the sliding contact with A and 25B.

Therefore, if the distance between the horizontal surface part 26B of the claw part 26 and the lower end surface 28 of the support cylinder 22 is selected to be approximately the thickness of the printed circuit board 19, the support cylinder 22 can be fixed on the printed circuit board 19 without play. can do.

In the above configuration, when the plug is inserted into or removed from the connector 1, the force applied to the connector 1 is caused by the blockage of the support cylinder 22 between the locking pieces 8A and 8B provided on the connector body 2 and the flange 7. By sandwiching the plate portion 23, the energy is transmitted to the support cylinder 22.

Since the printed circuit board 19 is sandwiched between the claw portion 26 and the lower end surface 28 of the support cylinder 22, the force transmitted from the connector main body 2 to the support cylinder 22 is transferred to the support cylinder 22. receive.

At this time, the force transmitted to the pin 5 protruding from the connector main body 2 becomes sufficiently small, and practically no force is transmitted to the connection point between the pin 5 and the conductive pattern 20.

In reality, the pin 5 is integrated with the electrical contact piece inside the connector body 2, but if the pin 5 is installed in the connector body 2 with a certain amount of play, it will be easier to insert and remove the plug into the connector 1. Even if the connector main body 2 moves slightly (this happens when there is play between the connector main body 2 and the support cylinder 22 or between the support cylinder 22 and the printed circuit board 19), this movement will cause the connector main body 2 and the pins 5 to move. Since it is absorbed by the backlash between the pins 5 and 20, the conductive pattern 20
It can be made so that it does not act as a force that would peel off the heel.

In the embodiment described above, the support cylinder 22 is connected to the printed circuit board 1.
9, the claws 24A and 24 each have a triangular cross section.
Although B is used, various fixing means can be applied, such as screwing or using fixing metal fittings.

Further, in the above description, a case has been described in which the number of pins 5 is eight, but the number can be changed in various ways. For example, even with two pins, the same effect as in the above case can be obtained.

Further, in the above description, an example has been described in which the connector 1 has a cylindrical connector main body 2 and the support cylinder 22 has a cylindrical shape correspondingly, but the support cylinder 22 is not limited to this. The shape, or at least the shape of the attachment hole 13, may be selected depending on the external shape of the connector 1.

For example, if the connector 1 is rectangular, the support cylinder 22 may be made rectangular.

Further, the outer shape of the support cylinder 22 may be made cylindrical and the attachment hole 13 may be made rectangular.

By arbitrarily selecting the shape of the mounting hole 13 in accordance with the shape of the connector 1 in this manner, connectors of various shapes can be fixed even when the method of fixing to the printed circuit board 19 is determined.

As described above, according to the present invention, when a plug is inserted into or removed from the connector 1, the force applied to the connector is absorbed by the support cylinder 22.
By receiving the force from the pin 5 of the connector 1, it is possible to prevent unnecessary force from acting on the conductive pattern 20 of the printed circuit board.

Therefore, even if the pins 5 of the connector 1 are directly connected to the printed circuit board 19, it is possible to effectively eliminate the possibility that the electrical connection will become defective due to fatigue.

[Brief explanation of the drawing]

Figures 1 and 2 are a plan view and a front view of the connector;
Fig. 3 is a front view showing a conventional connector device, Fig. 4 is a route diagram showing its mounting holes, Fig. 5 is a front view showing another conventional connector device, and Fig. 6 is a connector device according to the present invention. FIG. 7 is a plan view showing the supporting cylinder, and FIG. 8 is a sectional view taken along line 1--2. 1... Connector, 2... Connector body, 5... Pin, 7... Flange, 8A
, 8B... Locking piece, 11... Terminal board,
12...Conducting wire, 15...Printed circuit board, 16...Mounting hole, 17...Pattern, 1...Solder, 19... ...Printed circuit board, 20...pattern, 21...solder,
22...Support cylinder body, 24A, 24B...
・Stator, 25A, 25B...Fixing hole, 28
・・・・・・Bottom side.

Claims (1)

[Scope of utility model registration request] A connector in which a pin for electrically connecting to the outside and a mount for mechanically attaching to the outside protrude from the connector body, and a connector that is engaged through the mount when the connector body is fitted inside. a support cylinder having a stator for mechanically fixing the connector to the printed circuit board; A connector device characterized in that, by fixing the stator to the printed circuit board, the force applied to the connector when a plug is inserted into or removed from the connector is received by the support cylinder.