JPH05343141A - Printed board connecting device - Google Patents

Abstract

PURPOSE:To reduce a number of connecting parts between printed boards and assembling man-hours, in a module connecting device used for an optical transmitter or receiver. CONSTITUTION:In a module connecting device 1 of including a photoelectric transfer element, an RF connector 17 and an angle connector 11 are mounted along an edge of a printed board 5 of the device. On the other hand, a board connector 14 and an RF connector 18 are fixed in a position opposed to the connectors 11, 17, in a printed board 4. The connector 11 is divided into two housings 12a, 12b, to swivelably hold a contact part of a pin, internally inserted to the housing 12a, relating to a pin 13. In the case of fixing a module case 3 to the printed board 4, when connected the connectors 17, 18, the connector 11 is guided by a housing 15 and connected. Consequently, accuracy of mounting the connectors 17, 11 is relaxed.

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 connecting device used for an optical transmitter and an optical receiver.

[0002]

2. Description of the Related Art In recent years, there has been a demand for large capacity and long distance transmission in the field of communication, and therefore optical communication is used. In optical communication equipment, a laser diode module is used for the transmitter, and a photodiode module is used for the optical receiver.

FIG. 2 is a perspective view showing a structure of a laser diode module connecting device in a conventional optical transmitter or a photodiode module connecting device in an optical receiver. In the figure, the module connection device 1 has a structure in which a module case 3 and a printed circuit board 4 indicated by a two-dot chain line are fixed to an outer case 2. The module case 3 includes a printed circuit board 5 and a photodiode or laser diode (not shown), and an optical fiber 6 is connected to the outside thereof. A parallel cable 7a is pulled out from the edge connector 7 attached to the printed circuit board 5, and its tip is connected to the male rectangular connector 8. A coaxial cable 9 is soldered to a part of the printed board 5, and an RF connector 10 is attached to the tip thereof. The module case 3 is fixed to the side surface of the outer case 2 by screwing.

The printed circuit board 4 is provided with a power supply section for supplying power to the photoelectric conversion circuit or the amplification circuit provided on the printed circuit board 5 and another signal processing circuit. A rectangular connector 8 is provided to connect the circuit parts of the printed circuit boards 4 and 5.
A female rectangular connector 11 for coupling with is attached to the printed circuit board 4. Further, the printed circuit board 4 has an RF connector 10
An RF connector 12 mating with is attached.

The module connecting device 1 having the above-mentioned configuration
Then, in mounting the module case 3 and the printed circuit board 4, the positional accuracy is not strict, and the flexibility is used for the cable 7a and the coaxial cable 9 to connect them with each other.

[0006]

However, such a printed circuit board connecting device requires the cable 7a and the coaxial cable 9, and accordingly the rectangular connectors 8 and R are provided.
Wiring work for the F connector 10 is required. Further, in order to assemble the module connecting device 1, the printed board 4 is fixed to the outer case 2, and the rectangular connector 11 and the RF connector 1 are attached.
It was necessary to fix the module case 3 to the outer case 2 after inserting 2 into the rectangular connector 8 and the RF connector 10, respectively. For this reason, it is necessary to connect each cable to each connector, and there is a drawback that the price of parts for wiring is high. Further, there is a problem that it takes time to fix the module case 3.

The present invention has been made in view of the above-mentioned conventional problems, and provides a printed circuit board connecting device capable of reducing the number of parts required for connection and reducing the assembly man-hour of the module connecting device. With the goal.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a first printed circuit board and a first printed circuit board fixed to an edge of the first printed circuit board.
The RF connector, the first board connector in which the first RF connector and its connection surface are fixed at the same height along the edge of the first printed board, and are provided in proximity to the first printed board. A second printed circuit board and a second R fixed to the second printed circuit board coaxially with the first RF connector.
The F connector and the second board connector so as to be fitted to the second board connector.
And a second board connector fixed to the printed board, wherein the first board connector has a contact portion that fits with a pin of the second board connector,
It is characterized in that it is provided swingably with respect to a pin fixed to the first printed circuit board.

[0009]

According to the present invention having the above characteristics, when assembling the module connecting device, the first RF connector and the RF connector and the connecting surface thereof have the same height at the edge portion of the first printed circuit board. Attach the first board connector so that In addition, the second R on the second printed circuit board
Attach the F connector and the second board connector. When the first and second RF connectors are connected, the position of the contact portion of the first board connector is finely moved so as to fit with the pin of the second board connector. In this way, it is possible to reduce the number of wiring connecting parts and to easily electrically connect the printed boards.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a printed circuit board connecting device in an embodiment of the present invention will be described with reference to FIG. Figure 1
As shown in (a), in the present embodiment, the module connection device 10 is provided with an outer case 2, a module case 3, a printed board 4, a printed board 5, and an optical fiber 6, respectively, which is the same as the conventional example. , The description is omitted.

A female rectangular connector 11 is provided on the edge of the first printed board 5 as a first board connector. The rectangular connector 11 has housings 12a and 12b divided into two, and the housing 12a is provided with a rectangular opening having the same number as the number of connection poles. A contact portion that fits with a pin described later is inserted into each opening. For example, the contact portion is a petal-shaped contact. As shown in the partial cross-sectional view of FIG. 1B, the rear portion of this contact portion is bent in a U shape and connected to the pin 13. The pin 13 is press-fitted into the hole of the printed board 5 and soldered to the conductor on the back surface of the board. The U-shaped portion 13a has elasticity, and the contact portion with the pin of the mating connector is configured to swing at the opening of the housing 12a in a plane perpendicular to its axis.

On the other hand, a second printed circuit board 4 is provided with a second printed circuit board connector at a position facing the rectangular connector 11.
A male rectangular connector 14 is attached. The rectangular connector 14 has a U-shaped housing 15 and is insert-molded with a plurality of pins 16. One end of the pin 16 is press-fitted into the hole of the printed board 4 and soldered to the conductor on the back side. Therefore, unlike the contact portion of the connector 11, the pin 16 is fixed to the printed circuit board 4 without its mounting position moving slightly.

The first RF connector 17 is attached to the printed board 5 adjacent to the attachment edge of the rectangular connector 11. The second RF connector 18 is also attached to the printed circuit board 4 at a position coaxial with the connector 17. The connectors 17 and 18 are coaxial circular connectors that transmit high-frequency signals of VHF or UHF, for example. Each connector 17, 1
The core wire portion 8 is soldered to the conductors of the printed boards 4 and 5. The cylindrical portion of the RF connector 17 is screwed to the bottom surface of the module case 3 indicated by the chain double-dashed line via a spring washer. On the other hand, the cylindrical portion of the connector 18 is grounded by soldering to the conductor portion of the printed board 4 by a plurality of pins provided on the flange.

In order to assemble the module connecting device 10 in the printed circuit board connecting device thus constructed,
The electronic circuit unit is mounted on the printed circuit board 4 in advance, and the connector 1
4, 18 are attached, and the printed circuit board 4 is fixed to the bottom surface of the outer case 2. Next, on the printed circuit board 5, the connectors 11, 1
7 and the photoelectric conversion element and the electronic circuit part are mounted and inserted into a predetermined position of the module case 3. Next, connectors 17, 1
Insert the module case 3 in the direction of arrow B so that the axis A of 8 is aligned.
Lower in the direction. At this time, the core wire portion of the connector 17 is fitted into the connection hole of the connector 18. Then, the housing 12a of the connector 11 and the housing 1 of the connector 14
5, the contact portion between the pin 16 and the connector 11 comes close to each other.

Temporarily, the connector 11 with respect to the connector 17
Consider the case where the mounting position accuracy of is insufficient. Housing 1
When 2a is inserted into the inner surface of the housing 15, its position is corrected, each contact portion of the connector 11 is slightly moved by the U-shaped portion 13a, and the tip of the pin 16 is inserted into the contact portion of the connector 11. To be done. If the fitting error of the connectors 11 and 14 is set to, for example, about ± 0.5 mm, the deviation and distortion at the time of fitting the printed circuit boards 4 and 5 can be prevented.
Can be absorbed by the fitting part of.

As described above, when the module case 3 is attached to the printed circuit board 4 integrally with the printed circuit board 5, various cables for connecting the substrates are not required, and the number of connecting parts of the module connecting device 10 is reduced. Therefore, the number of assembling steps is reduced, and an inexpensive module connecting device can be obtained.

[0017]

As described in detail above, according to the present invention, the contact portion of the first rectangular connector is configured to be swingable with respect to its housing and the pin of the second board connector. .. Therefore, when the first and second RF connectors are connected, even if the mounting position accuracy between the connectors varies, the fitting error of each connector can be absorbed. Therefore, it is possible to reduce the number of steps for assembling the module connecting device of the optical communication device and to reduce the number of connecting parts.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a printed circuit board joining apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration example of a conventional printed circuit board connecting device.

[Explanation of symbols]

 2 External case 3 Module case 4, 5 Printed circuit board 6 Optical fiber 10 Module connection device 11, 14 Square connector 12a, 12b, 15 Housing 13, 16 pin 13a U-shaped part 17,18 RF connector

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H01R 23/02 D 6901-5E

Claims (1)

[Claims] 1. A first printed circuit board, and a first R fixed to an edge of the first printed circuit board.
An F connector and the first R along the edge of the first printed circuit board.
An F connector and a first board connector whose connection surface is fixed at the same height, a second printed board provided in the vicinity of the first printed board, and the first RF connector coaxially with the first printed board. A printed circuit board connection device including a second RF connector fixed to a second printed circuit board and a second circuit board connector fixed to the second printed circuit board so as to be fitted to the first circuit board connector. In the first board connector, a contact portion that fits with a pin of the second board connector is swingably provided with respect to the pin fixed to the first printed board. A printed circuit board connecting device characterized by: