JPH051112Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to the connection structure of a communication device, and the present invention is a communication device that matches the specified external interface hardware with the connection hardware inside the communication device. Regarding connection structure.

(Prior Art) A conventional example of the connection structure of this type of communication device will be described with reference to FIG. , a second connector 6 that engages with a first connector 3 provided at the rear of the PKG 2.
is the back wiring board of chassis 1 (below)
A press fit pin of the second connector 6 protrudes from the second surface of the BWB 5 to form a third connector 9. 8 is a guide housing. Here, the press fit pin is formed using a press-fitting/pressure welding method, and is attached to the BWB without soldering.
It is possible to connect electrically and mechanically with BWB
The press-fit pins protruding from the second surface of the connector 5 can be used as the third connector 9 because they provide stable contacts with no adhesion of solder or the like. A prescribed fifth connector 23 is attached to a back plate 24 on the back of the casing 1, and the back plate 24 is attached to a screw hole 16 provided in the casing 1 with screws 15. The intermediate cable 22 is connected to the fifth connector 23, and the third connector 9 is connected to the other end.
A fourth connector 21 that engages with is connected. A sixth connector 13 is provided at the tip of the external communication cable 14, and a fifth connector 23
connected to. In this manner, in the conventional connection structure, the plurality of sets of external communication cables 14 are arranged by the intermediate cable 22, and are collectively connected to the fourth connector 21 and then connected to the PKG 2.

(Problem to be solved by the invention) As mentioned above, in the conventional connection structure, the connection between the PKG 2 and the external communication cable 14 is made through the intermediate cable 22.
By arranging the external communication cables 14 in various arrangements, the third connector 9 and the fifth connector 23 have a structure that matches the differences in shape and terminal arrangement. 1
In order to match the arrangement of the connectors 3, it is necessary to prepare various cables, making management extremely complicated. Furthermore, as shown in Fig. 3, when there are four fifth connectors 23 and one fourth connector 21, manufacturing a total of five connectors and the intermediate cable 22 requires complicated wiring and is extremely difficult to automate. However, there was a drawback that the cost of the cable assembly could not be reduced unless it was mass produced.
Furthermore, this cable assembly is one-to-one with PKG2.
There are cases where the user has to install these, but at this time, the cable assembly may get caught in the metal fittings, etc., causing damage, so it is easy for the user to do the installation. The drawback was that it could not be operated.

(Means for Solving the Problems) A communication device connection structure according to the present invention has a housing including a plurality of PKGs and BWBs that accommodate plug-ins, and includes a first connector at the rear of the PKG,
A second connector that engages with the first connector is press-fit mounted on the first surface of the BWB, and a press-fit pin of the second connector protrudes from the second surface of the BWB and connects to the third connector. A connection structure for a communication device that serves as a connector includes an interface unit in which a fourth connector that engages with the third connector and a fifth connector that serves as an external interface are mounted on a printed wiring board,
The interface unit is connected to the second
The connector is configured to be engaged and connected to the third connector from the surface side.

(Example) Next, the present invention will be described with reference to the drawings.

FIG. 1 is a vertical sectional view showing a communication device employing a connection structure according to an embodiment of the present invention in an exploded state in the order of assembly, and FIG. 2 is an external perspective view of this type of communication device. A BWB 5 is provided on the back of the housing 1, and a PKG 2 with a first connector 3 and a connector 4 mounted in parallel on the rear side connects the housing 1 to the BWB 5.
The second connector 6 and the first connector are inserted into the
At the same time as the connector 3 is engaged, the connector 4 is engaged with the connector 7 mounted in parallel with the second connector 6, and power is supplied to the PKG 2 and the control line and common signal line are connected.

On the other hand, the press fit pin of the second connector 6 is connected to the through hole of the BWB 5 and
A third connector 9 protrudes from the BWB 5 in FIG. A guide housing 8 for protecting the connector pins of the third connector 9 and for a fourth connector 10 engaging the third connector 9 is mounted around the third connector 9 .

The interface unit 25 according to the present invention is
A fifth external interface unit defined as a fourth connector 10 is attached to the printed wiring board 11.
A display board 17 equipped with screws 15 is mounted around the fifth connector 12.
is provided, and screw the screw 15 into the screw hole 16 on the back of the housing 1 to connect the interface unit 25.
is attached to the housing 1. At this time, the fourth connector 10 is engaged with the third connector 9. There are a fourth connector 10 and a fifth connector on the printed wiring board 11.
In addition to the connector 12, it is possible to mount a surge absorber 19 that softens surges from the outside, a noise filter 18 that blocks noise from being sent to the outside and from entering the inside, and a switching terminal 20 that cuts unnecessary signal lines. It is.

To summarize the above, in the present invention, the sixth connector 13 connected to the tip of the external communication cable 14 engages with the fifth connector 12;
printed wiring board 11, fourth connector 10, third
The connector 9, the second connector 6, and the first connector 3 are connected to the PKG 2 in this order.

(Effects of the invention) As explained above, the present invention employs a printed wiring board for the portion corresponding to the conventional intermediate cable, and the printed wiring board has a standardized size and has a fourth connector and a fifth connector. Since the connector is mounted, the same construction methods and equipment as those for assembling PKG etc. can be used, making it possible to provide a low-cost interface unit. Furthermore, since there are no wiring cables, physical failure is less likely to occur even if the operation of the interface unit is left to the user. Furthermore, even on printed wiring boards with the same wiring pattern, it is easy to form different connection patterns by reducing the number of fifth connectors mounted or using a switching turner mill, etc., and there are advantages in that there is little cost variation. be. In addition, it is easy to mount various electronic and functional parts on printed wiring boards, and as long as space allows, appropriate functions can be added to the interface unit, and when combined with PKG, it becomes more flexible than before. Various effects can be brought about, such as being able to provide a communication device that matches the specifications of external communication cables.

[Brief explanation of the drawing]

Fig. 1 is an exploded vertical cross-sectional view of a communication device employing the connection structure according to the present invention, Fig. 2 is an external perspective view of a communication device to which the present invention is applied, and Fig. 3 is a communication device having a conventional connection structure. FIG. 1... Housing, 2... Electronic device package (PKG), 3... First connector, 5... Back wiring board (BWB), 6... Second connector, 9... Third connector, 10, 21...
Fourth connector, 11...Printed wiring board, 1
2, 23...Fifth connector, 13...Sixth connector, 14...External communication cable, 25...Interface unit.

Claims (1)

[Scope of utility model registration request] The housing includes a plurality of electronic equipment packages to accommodate plug-ins and a back wiring board, a first connector is provided at the rear of the package, and a first connector is provided on a first side of the back wiring board. A connection structure for a communication device in which a second connector that engages with the connector is press-fit mounted, and a press-fit pin of the second connector protrudes onto the second surface of the back wiring board to become a third connector. , an interface unit in which a fourth connector that engages with the third connector and a fifth connector serving as an external interface are mounted on a printed wiring board, and the interface unit is mounted on a printed wiring board. A connection structure for a communication device, characterized in that it is engaged and connected to the third connector from the second surface side.