JPH07122318A - Connector terminal stand conversion unit - Google Patents

Abstract

PURPOSE:To dispense with a junction cable to have a compact size by performing wiring between a terminal stand and each terminal of a connecting connector according to the wiring pattern of a printed circuit board accommodated in a case. CONSTITUTION:A terminal stand 22 has terminals arranged in the mounting direction A of a connecting connector 21 to a connector 11, and the terminals exists in each line. A case projection 27 makes the mounting of bundled cables 28 easy. Wiring between the terminal stand 22 and each terminal of the connecting connector 21 is made according to the wiring pattern of a printed circuit board accommodated in a case 23, and a junction cable is unnecessary. Since the rigidity of a single cable 31 does not neglect, the case projection 27 and the bundled cables 28 are jointly used and held in a single cable housing 25 formed by the terminal line positioned on both sides of the single cable 31 to make the mounting of a terminal cover 26 easy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block used for connecting a signal line of an electronic device or the like, and more particularly to an improvement of a connector-terminal block conversion unit for converting a connector input / output to a terminal block input / output. Regarding

[0002]

2. Description of the Related Art Among industrial control units, one for connecting a connector as disclosed in Japanese Unexamined Patent Publication No. 285698/1990 proposed by the present applicant and one in Japanese Unexamined Patent Publication No. 2-30 / 1998.
There are two types for signal line connection using a terminal block as disclosed in Japanese Patent Laid-Open No. 1978. In such a unit, whether to use a connector or a terminal block for signal exchange with an external device is determined in advance and selected.

However, the circumstances may change after the selection, and the connector may be changed to the terminal block. In such a case, it is conceivable to replace the unit, but another method is to attach a conversion unit (see Japanese Utility Model Laid-Open No. 1-176368). FIG. 3 is a block diagram of such a conventional device. A relay cable 30 connects between the main body unit 10 having the connector 11 and the connection connector 21 of the conversion unit 20. Then, in the conversion unit 20, the connection connector 21 and each terminal of the terminal block 22 are connected by a wiring pattern. This allows
The connector 11 and the external signal line are connected using a terminal block 22. However, such a relay cable 30
The use of is a detour, and a simpler configuration has been desired. Further, the conversion unit 20 is about the same size as the main body unit 10, and there is a problem that the occupied area inside the housing becomes large.

Therefore, a signal line has been devised so that it can be used for both connector connection and terminal block. FIG. 4 is an explanatory diagram of a state in which such a signal line is connected by a connector. In the figure, at the end of the signal wire 31, the coating layer is peeled off to expose the core wire 32, and a conductor foil 33 such as a metal is wound around the core wire 32 to increase the rigidity. Then, the conductor foil 33 is inserted into the terminal hole 11a of the connector 11 for connection.

[0005]

However, the operation of winding the conductor foil 33 around the core wire 32 is called clipping. It is necessary to use a dedicated tool. Also, the conductor foil 33
Due to this, the rigidity of the core wire 32 is increased, but since the signal wire 31 has an elongated shape, it is easy to cave, and therefore the terminal hole 11a
It is also necessary to use a dedicated crimping tool to insert the conductor foil 33 into the. Therefore, there is a problem that the end processing of the signal line 31 becomes complicated and the connector connecting work becomes difficult. The present invention solves the above-mentioned problems, and an object of the present invention is to provide a connector-terminal block conversion unit that is simple and compact, and has good workability without using a special tool.

[0006]

According to the present invention which achieves such an object, a connector 1 provided in a main body unit 10 is provided.
1 is a conversion unit 20 located between the signal line 31 and a connection connector 21 connected to this connector,
Terminals that are electrically connected to the respective poles of the connection connector are attached to the terminal block 22 arranged in a plurality of rows in the mounting direction A of the connection connector and the terminals provided along the terminal row of the terminal block. A signal line accommodating portion 25 that guides the signal line to an insertion side that is paired with the side on which the connection connector is mounted.
And a case protrusion 27 provided on the insertion side of the signal line accommodating portion, and a spring portion 28 attached to the case protrusion for bundling the signal lines.

[0007]

The terminal array of the terminal block is along the mounting direction of the connector to the connector, and the signal line accommodating portion is provided between the terminal rows. A case protrusion is provided on the signal line insertion side of the signal line accommodating portion to facilitate the alignment of the signal line and to reliably regulate the signal line by the spring portion.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. Figure 1
FIG. 3 is a perspective view showing the configuration of an embodiment of the present invention. In the figure, the main unit 10 has a box-shaped housing, a connector 11 is provided on the front surface, a fixing surface portion 12 for attaching to a rail or a wall is provided on the rear surface, and an electronic circuit is mounted inside. It has a printed circuit board.

The conversion unit 20 has a substantially rectangular shape, and has a connection connector 21 connected to the connector 11 on one side, and the side paired with this is the insertion side of the signal line 31. The terminal block 22 has four rows of terminals arranged along the mounting direction A of the connection connector 21 with respect to the connector 11, and there are ten terminals in each row.
Each terminal has a core wire insertion portion 22a into which the end of the signal wire 31 facing the signal wire housing portion 25 is inserted, and a connection screw 22b for fixing the signal wire inserted into the core wire insertion portion 22a. 22b is covered with a terminal block cover 26. The case 23 is a casing that constitutes the conversion unit 20, and has through holes for holding the fixing screws 24 in the upper and lower edge surfaces.
The fixing screw 24 is a screw hole 11 provided in the connector 11.
The conversion unit 20 is screwed to the main body unit 10
And the electrical connection between the connector 11 and the connector 21 is strengthened. The signal line housing unit 25 is
Two lines are provided on the terminal block 22, and the core wire insertion portion 22a
The signal line inserted in is guided to the exit side. The terminal block cover 26 covers the signal line accommodating portion 25 and is locked by an engagement relationship using a claw portion and a concave portion. Case protrusion 2
Reference numeral 7 is a tongue-shaped projection protruding toward the exit side of the signal line housing portion 25, and a concave portion is provided at the end of the signal wire housing portion 25 to facilitate the attachment of the bundled wire 28. The case protrusion 27 also serves to align the signal lines 31 accommodated in the signal line accommodating portion 25, and the terminal block cover 26 can be easily attached without being obstructed by the signal lines 31. The bundling line 28 holds the signal line 31 on the case protrusion 27, and a nylon line or the like is used.

In such a device, the wiring between the terminal block 22 and each terminal of the connection connector 21 is made of a case 23.
Because it depends on the wiring pattern of the printed circuit board housed in
The conventional relay cable is no longer needed. At this time, the conversion unit 20 is the connector 1 of the main unit 10.
Since the size of the signal line 31 is so small that it can be directly attached to the connector 1, the rigidity of the signal line 31 cannot be ignored. Therefore, by using the case projection 27 and the bundling line 28 together, the signal line 31 is held in the concave signal line accommodating portion 25 formed by the terminal rows located on both sides to facilitate the mounting of the terminal block cover 26. There is.

FIG. 2 is a block diagram of another embodiment of the present invention. Depending on the application, there is one that connects the signal line 31 and the main body unit 10 and branches to another cable 32. In order to cope with such an application, the conversion unit 20 may be provided with expansion connectors 29 and 29b. The branching pattern is provided on the printed circuit board housed inside the case 23. The expansion connectors 29 and 29b are provided outside the fixing screw 24, and the cable 32 is connected thereto. With such a configuration, a signal flowing through an arbitrary signal line of the cable 32 can detect the terminal of the terminal block 22 as a check pin, which is convenient.

In addition, the thickness of the conversion unit 20 is set to the connector 1
When the width is set to be approximately equal to 1, even if the two connectors 11 are installed in parallel on the main body unit 10, the two conversion units 20 can be mounted in a stacked state corresponding to these, and the expandability is improved. Will increase. In this way, in order to make the thickness of the conversion unit 20 as thin as the width of the connector 11, it is necessary to consider the depth of the signal line accommodating portion 25 and the thickness and number of the signal lines 31 to be accommodated. .

[0013]

As described above, according to the present invention, the wiring between the terminal block 22 and each terminal of the connector 21 is
Since it depends on the wiring pattern of the printed circuit board housed in the case 23, there is an effect that the conventional relay cable is not necessary and contributes to downsizing. In addition, the connector 11
The connection between the connection connector 21 and the connection connector 21 is mechanical fitting, and the signal wire 31 is inserted into the core wire insertion portion 22a, and the connection screw 22b.
Since it can be fixed with, there is no need to use a special tool, and the assembly work becomes easier.

[Brief description of drawings]

FIG. 1 is a configuration perspective view showing an embodiment of the present invention.

FIG. 2 is a configuration diagram of another embodiment of the present invention.

FIG. 3 is a configuration diagram of a conventional device.

FIG. 4 is an explanatory diagram of a state where a signal line is connected to a connector.

[Explanation of symbols]

 10 main body unit 20 conversion unit 21 connector 22 terminal block 25 signal line housing 26 terminal block cover 27 case protrusion 28 bundling line 31 signal line

Claims (1)

[Claims] 1. A conversion unit (20) located between a connector (11) provided on a main body unit (10) and a signal line (31), the connection unit (21) being connected to this connector. And a terminal block (22) in which terminals electrically connected to the respective poles of the connection connector are arranged in a plurality of rows in the mounting direction (A) of the connection connector, and along the terminal row of the terminal block. And a signal line accommodating portion (25) that guides the signal line attached to the terminal to an insertion side that is paired with the side on which the connection connector is attached, and a signal line accommodating portion provided on the insertion side of the signal line accommodating portion. A connector-terminal block conversion unit comprising a case protrusion (27) and a spring portion (28) attached to the case protrusion to bundle the signal lines.