JPH06338359A - Connector/terminal block converting adapter for control device - Google Patents

Abstract

PURPOSE:To make a terminal block converting adapter small-sized and lightweight and save the space even when there are many connecting wires by squeezing and fixing the tips of the connecting wires with screws, or providing tab terminals at the tips when the connecting wires are connected to the terminal board of a control device. CONSTITUTION:The connector/terminal block converting adapter 1 of a control device 2 is formed with a connecting body constituted of connector pins and a conductor section connecting the terminals of a terminal block. A printed board, for example, is used for the connecting body, connecting wires to be connected to it, e.g. electric wires, are inserted from the left lateral direction or the right lateral direction, and they are connected by pressure. contact with a longitudinally sliding lever. The adapter 1 is directly fitted to an I/O unit with fitting screws 3 arranged on the adapter 1. The adapter 1 is constituted of the existing control device 2, the I/O unit, the fitting screws 3, and fitting nuts 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector / terminal block conversion adapter of a control device for converting a cable connection of a control device from a connector connection to a terminal block connection.

[0002]

2. Description of the Related Art FIG. 22 shows a conventional method for relay connection at a terminal block because a connector is provided at a connection port of a control device, but a connector is not provided at a cable end for connecting to this connector. FIG. In the figure, 2 is a controller, for example, a connector type I / O unit in a programmable controller. Reference numeral 5 is a connector already installed in the connector type I / O unit 2. 27 is a terminal block unit, 26 is a cable for connecting to the connector 5 of the connector type I / O unit 2 and the connector provided in the terminal block unit 27, and has connectors at both ends.

FIG. 23 is an explanatory view showing another conventional method. In the figure, 2 and 5 are the same as those in FIG. Reference numeral 29 is a terminal block, and 28 is a cable portion having one end fixedly connected to the terminal block 29 and having a connector at the other end. In addition,
This connector is used in a state of being connected to the connector 5 of the connector type I / O unit 2.

FIG. 24 is an explanatory view showing still another conventional method. The terminal block 30 is configured such that the conductor section of the terminal block 30 directly contacts the card edge section of the I / O unit 2 in the programmable controller.

[0005]

The conventional connector / terminal block conversion adapter shown in FIGS. 22 and 23 has the following problems. 1. A space for arranging the cable with connector on both ends 26 or the cable with connector on one side 28 is required. 2. A space for arranging the terminal block unit 27 or the terminal block 29 is required. 3. Since the cable 26 with connectors on both ends or the cable 28 with connectors on one side is used, there is a problem that a voltage drop or the like occurs. Further, when the cable 26 with connectors at both ends is used, the connectors are in two stages, so that the reliability of electrical connection is reduced. Further, in the conventional connector / terminal block conversion adapter of the control device shown in FIG. 24, the terminal block 30 is usually a large one for round crimp terminals, and the reliability of contact is small when the terminal block is small and has multiple terminals. It is difficult to improve sex.

The present invention has been made to solve the above-mentioned problems, and is a connector / terminal of a control device which is compact, lightweight, space-saving and easy to use, and has excellent electrical characteristics and reliability. The purpose is to obtain a stand conversion adapter.

[0007]

In the connector / terminal block conversion adapter of the control device according to the present invention, the connection method of the connection line from the outside is such that the tip of the connection line is pressed by a lever to connect or connect. A terminal block that is either screwed to connect the tip of the wire so that pressure is applied with the tip of the screw, or a tab terminal is provided at the tip of the connection wire, and the connection is made via this tab terminal. A connector to be connected to the printed circuit board, a printed circuit board for electrically connecting the terminal portion of the terminal block and the pins of the connector, and a cover body provided so as to cover the printed circuit board.

The cover body is a molded product.

Further, as for the method of connecting the connecting wire from the outside, whether the connecting wire is connected by pressing the tip of the connecting wire by pressing the lever or by screwing the end of the connecting wire so that the tip of the screw pressurizes the connecting wire. A terminal block provided with a tab terminal at the tip of the connection line and connected through the tab terminal, or a connector connected to the control device, and a support body supporting the terminal block and the connector, A connection body for electrically connecting the terminal portion of the terminal block and the pin of the connector is provided.

The support is a molded product.

The connection body is any one of a printed circuit board, a flexible cable and an electric wire.

Further, the terminal block is designed such that the connecting line is drawn out in the connector mounting direction or in the direction perpendicular to this.

Further, the method of connecting the connecting wire from the outside is such that the terminal block which is pressed by the pressing of the lever has a recess for facilitating the pressing on the pressing surface of the lever.

Further, the terminal block is designed to have a signal name or the like displayed for each terminal.

The connector is a card edge type connector.

Further, the control portion is fixed by screws.

Further, there is provided an engaging portion which engages with the control portion, and the engagement portion is fixed to the control portion.

[0018]

In the connector / terminal block conversion adapter of the control device according to the present invention, the connecting method of the connecting wire from the outside is such that the tip of the connecting wire is pressed by a lever to make a connection, or the tip of the connecting wire is screwed. Either a terminal block that is connected by screwing so that pressure is applied at the tip or a tab terminal is provided at the tip of the connection wire, and the connection is made via this tab terminal, and a connector that is connected to the control device. A printed circuit board for electrically connecting the terminal portion of the terminal block and the pin of the connector, and a cover body provided so as to cover the printed circuit board. Further, it has the above-mentioned terminal block and connector, a support body that supports the terminal block and the connector, and a connection body that electrically connects the terminal portion of the terminal block and the pin of the connector.

[0019]

【Example】

Example 1. A connector / terminal block conversion adapter (hereinafter referred to as an adapter) of a control device according to the first embodiment of the present invention has a connector having a conductor part for connecting a pin of a connector and a terminal part of a terminal block, for example, a printed circuit board. ing. Then, a connecting wire to be connected to the terminal block, for example, an electric wire is inserted from either the left lateral direction or the right lateral direction, and is connected by pressure contact using a lever that slides back and forth. Also,
The holding of the adapter is directly attached to the I / O unit by the mounting screw arranged on the adapter. FIG. 1 is a perspective view of the adapter according to the first embodiment. In the figure, 1 is an adapter and 2 is an existing control device, for example, an I / O unit. Reference numeral 3 is a mounting screw, and 4 is a mounting nut. Mounting screw 3
Is mounted on the adapter 1 and is tightened to the mounting nut 4 mounted on the I / O unit 2 so that the adapter 1
It is fixedly held in the O unit 2.

FIG. 2 is a cross section AA of FIG. In the figure, 5 is a connector for coupling with the connector 6 of the I / O unit 2, 7 is a printed circuit board, 8 is a terminal block, and 9 is a support, for example, a molded case. The molded case 9 may support the terminal block 8 and the connector 6 as a support. FIG. 3 shows a printed circuit board 7 that connects the connector 5 and the terminal block 8. In the figure, on the printed circuit board 7, a connecting line is formed into a wiring pattern between the pins of the connector 5 and the terminal block 8 which are in communication with each other, so that the connector 5 and the terminal block 8 are connected.

FIG. 4 is a diagram showing a connecting method and a drawing-out direction of an electric wire connected to the terminal block 8. In the figure, 10 is a blade-shaped contactor that is a part of the terminal block 8, 11 is a lever for pressing the electric wire, 12 is a through hole for the electric wire, and 13 is a cover for the skin. The lever 11 is usually incorporated inside the terminal block 8 and slides in two steps, front and rear. Pull the wire forward and set the wire from the side through the through hole 12 of the lever 11 (Fig. 5). Then, when the lever 11 is pressed in the opposite direction, the blade contact 10 breaks the wire cover. , Blade contactor 10
And the core of the wire come into contact (Fig. 6).

Next, as a method of removing the electric wire from the state shown in FIG. 5, the lever 11 may be pulled forward to take out the electric wire in the lateral direction. If the wire covering remains, the lever 11
Is further pulled toward the front to separate the lever 11 from the terminal block 8, and the skin cover remaining in the skin cover receiver of the lever 11 is taken out.

According to the first embodiment, since the electric wires are inserted into the terminal block 8 from the lateral direction and connected by the pressure welding method, even if the number of electric wires is large, it can be accommodated in the small space in front of the I / O unit 2. Can be miniaturized. Further, since the printed circuit board 7 is provided as a relay between the connector 5 and the terminal block 8 and integrated with the molded case 9, the adapter 1 is configured so that it can be directly attached to the I / O unit 2 by screw fixing.
A wiring space for the terminal block unit 27 or the terminal block 29 and a cable are unnecessary. In addition, adapter 1
Since it is directly attached to the I / O unit, the contact reliability of the connector is improved, and the electrical characteristics such as reducing the voltage drop due to the cable are improved.

Example 2. The connector / terminal block conversion adapter of the control device according to the second embodiment of the present invention has a printed circuit board provided with a conductor pattern for connecting the pin of the connector and the terminal portion of the terminal block, and the electric wire connected to the terminal block is left. It is inserted from either the lateral direction or the right lateral direction, and pressed and connected by a lever that slides back and forth. Also,
The holding of the adapter is directly attached to the I / O unit by the one-touch fixing tab provided on the adapter. In the second embodiment, as shown in FIGS. 7 and 8, in the adapter 1 according to the first embodiment, the method of holding the adapter 1 uses the spring property of the molded case 9. In FIG. 7, 14 is an engaging piece integrated with the mold case 29, for example, a claw. Reference numeral 15 is a through hole provided in the I / O unit. When the tip of the tab 14 fits into the through hole 15, the position of the adapter 1 to the I / O unit 2 is determined, and the connector 5 and the connector 6 of the I / O unit 2 are connected and fixed.

FIG. 8 shows an engaged state of the claw 14. The removal force of the adapter 1 is the same as that of the connector 5 of the adapter 1
Pull-out force and claw 14 due to contact of connector 6 of unit 2
It is the pulling force that utilizes the springiness of the molding due to the barbed portion. According to the second embodiment, since the electric wires are inserted from the lateral direction into the terminal block 8 and connected by the pressure welding method, the terminal block 8 can be miniaturized so that it can be accommodated in a small space in front of the I / O unit 2 even when the number of electric wires is large. . Further, a printed circuit board 7 is provided as a relay between the connector 5 and the terminal block 8 and integrated by a molded case 9, and the adapter 1 is attached to the I / O unit 2 so that it can be directly attached with one touch by utilizing the elasticity of molding. Since it is configured, the terminal block unit 27 or the terminal block 29
Wiring space and cables are unnecessary. Further, since the adapter 1 is directly attached to the I / O unit, the contact reliability of the connector is improved, the electrical characteristics such as the voltage drop due to the cable is improved, and the attachment / detachment of the adapter 1 is facilitated. is there.

Example 3. A connector / terminal block conversion adapter of a control device according to a third embodiment of the present invention has a connector, for example, a printed circuit board provided with a conductor pattern for connecting between a card edge type connector and the terminal block, and is connected to the terminal block. The electric wire is inserted from either the left lateral direction or the right lateral direction and is connected by pressure welding using a lever that slides back and forth. Further, the holding of the adapter is directly attached to the I / O unit by a mounting screw arranged on the adapter. In the third embodiment, as shown in FIGS. 9 and 10, the connection method between the adapter 1 and the I / O unit 2 in the first embodiment is a card edge type connection. In FIG. 9, 16 is a card edge type connector, 1
In FIG. 7, the shape of the printed board on the I / O unit 2 side is a card edge (FIG. 10). The connector 16 is joined to the card edge 17 portion and comes into contact with the surface of the card edge 17 on which the wiring pattern is formed.

According to the third embodiment, since the terminal block 8 has the wires inserted from the lateral direction and connected by the pressure welding method, the terminal block 8 can be housed in a small space in front of the I / O unit 2 even when the number of wires is large. Can be miniaturized. Further, since the printed circuit board 7 is provided as a relay between the connector 5 and the terminal block 8 and integrated with the molded case 9, the adapter 1 is configured so that it can be directly attached to the I / O unit 2 by screw fixing.
A wiring space for the terminal block unit 27 or the terminal block 29 and a cable are unnecessary. In addition, adapter 1
Is directly attached to the I / O unit, the contact reliability of the connector is improved, the electrical characteristics such as the voltage drop due to the cable is reduced, and the connector of the I / O unit is connected to the card edge 17 of the printed circuit board. There is an effect that may be.

Example 4. The connector / terminal block conversion adapter of the control device according to the fourth embodiment of the present invention has a connector, for example, an electric wire, for connecting between the pin of the connector and the terminal portion of the terminal block, and the electric wire connected to the terminal block is in the left lateral direction. Alternatively, it is inserted from either the right lateral direction and is connected by pressure using a lever that slides back and forth. Further, the holding of the adapter is directly attached to the I / O unit by a mounting screw arranged on the adapter. This Example 4 is shown in FIG. 11 and FIG.
As shown in FIG. 2, the connector 5 and the terminal block 8 in the first embodiment
The connection is made by using the electric wire 18. Figure 1
Reference numeral 1 shows that the pins of the connector 5 and the pins of the terminal block 8 are connected by a single electric wire 18.

According to the fourth embodiment, since the terminal block 8 has the wires inserted from the lateral direction and connected by the pressure welding method, the terminal block 8 can be housed in a small space in front of the I / O unit 2 even when the number of wires is large. Can be miniaturized. Furthermore, since the pins of the connector 5 and the terminals of the terminal block 8 are connected by the electric wires 18, they are integrated by the molded case 9, and the adapter 1 is configured so that they can be directly attached to the I / O unit 2 by screw fixing. A wiring space for the unit 27 or the terminal block 29 and a cable are unnecessary. Further, since the adapter 1 is directly attached to the I / O unit, the contact reliability of the connector is improved, the electrical characteristics such as the voltage drop due to the cable is improved, and the cost can be reduced.
This has the effect of making maintenance easier.

Example 5. A connector / terminal block conversion adapter of a control device according to a fifth embodiment of the present invention has a connecting body provided with a conductor part for connecting a pin of a connector and a terminal part of the terminal block, for example, a flexible cable, The electric wire to be connected is inserted from either the left lateral direction or the right lateral direction, and is connected by pressure welding using a lever that slides back and forth. Further, the holding of the adapter is directly attached to the I / O unit by a mounting screw arranged on the adapter. In the fifth embodiment, as shown in FIGS. 13 and 14, a flexible cable 19 is used to connect the connector 5 and the terminal block 8 in the first embodiment. In FIG. 13, 19 is a flexible cable. The flexible cable 19 has a flexible film shape,
A hole for passing the pin of the connector 5 and the terminal block 8 is formed, and the connector 5 and the terminal block 8 are connected to each other by connecting the connecting line between the pins by forming a wiring pattern.

According to the fifth embodiment, since the electric wires are inserted into the terminal block 8 from the lateral direction and connected by the pressure welding method, even when the number of electric wires is large, it can be accommodated in the small space in front of the I / O unit 2. Can be miniaturized. Furthermore, a flexible cable 19 is used for relaying between the connector 5 and the terminal block 8.
Since the adapter 1 is configured so as to be integrated with the molded case 9 and can be directly attached to the I / O unit 2 by screw fixing, the wiring space of the terminal block unit 27 or the terminal block 29 and the cable are It becomes useless. further,
Since the adapter 1 is directly attached to the I / O unit, the contact reliability of the connector is improved, and the electrical characteristics such as the voltage drop due to the cable are improved, and the adapter 1 can be constructed at low cost and has a film shape. Therefore, there is an effect that it can flexibly respond to changes in the mounting position.

Example 6. A connector / terminal block conversion adapter for a control device according to a sixth embodiment of the present invention has a printed circuit board provided with a conductor pattern for connecting pins of the connector and terminal portions of the terminal block, and an electric wire connected to the terminal block is left. It is inserted either laterally or right laterally and is connected by screwing so that the tip of the screw presses the tip of the wire. Further, the holding of the adapter is directly attached to the I / O unit by a mounting screw arranged on the adapter. In the sixth embodiment, as shown in FIGS. 15 and 16, the method of connecting the electric wires in the first embodiment is such that the electric wires are contact-fixed by using terminal screws 20. In FIG. 15, 20 is a terminal screw and 21 is a contactor. Contact 21
Is incorporated in the terminal block 8, and the core wire of the electric wire is connected to the contactor 2.
The wire is contacted and fixed as shown in FIG. 16 by inserting it into the core wire storage unit 1 and tightening the terminal screw 20.

According to the sixth embodiment, since the electric wires are inserted laterally into the terminal block 8 and the ends of the terminal screws 20 are pressed and connected to the ends of the electric wires by screwing the terminal screws 20, the number of electric wires is large. In this case, the size can be reduced so that the I / O unit 2 can be stored in a small space in front of the unit. Further, a printed circuit board 7 is provided as a relay between the connector 5 and the terminal block 8 and is integrated by a molded case 9, so that the I / O unit 2
Since the adapter 1 is configured so that it can be directly attached by screw fixing, the wiring space for the terminal block unit 27 or the terminal block 29 and the cable are unnecessary. Further, since the adapter 1 is directly attached to the I / O unit, the contact reliability of the connector is improved, the voltage drop due to the cable is reduced, and the electric wire connection has high reliability.

Example 7. A connector / terminal block conversion adapter for a control device according to a seventh embodiment of the present invention has a printed circuit board provided with a conductor pattern for connecting pins of the connector and terminal portions of the terminal block, and an electric wire connected to the terminal block is a tip. A tab terminal is crimped to the terminal and is inserted and connected from either the left lateral direction or the right lateral direction. Further, the holding of the adapter is directly attached to the I / O unit by a mounting screw arranged on the adapter. In the seventh embodiment, as shown in FIGS. 17 and 18, the method of connecting the electric wires in the first embodiment is a method of using the tab terminal 22. In the figure, 22 is a tab terminal and 23 is a contact. Tab terminal 2
2 is crimped to the electric wire in advance, and the contact 23 is incorporated in the terminal block 8. Then, the tab terminal 22 and the contact 22 are brought into contact with the contact 23 as shown in FIG.

According to the seventh embodiment, the terminal block 8 has a large number of wires because the wires are inserted from the lateral direction, the tab terminals 22 are provided at one end of the wires, and the tab terminals 22 are used for connection. In this case, the size can be reduced so that the I / O unit 2 can be stored in a small space in front of the unit. further,
Since the printed circuit board 7 is provided as a relay between the connector 5 and the terminal block 8 and is integrated with the molded case 9 and the adapter 1 is configured so that it can be directly attached to the I / O unit 2 by screw fixing, the terminal block unit 27 , Or the wiring space of the terminal block 29 and the cable become unnecessary. Further, since the adapter 1 is directly attached to the I / O unit, the contact reliability of the connector is improved and the voltage drop due to the cable is reduced,
There are effects such as easy maintenance.

Example 8. A connector / terminal block conversion adapter of a control device according to Embodiment 8 of the present invention has a printed circuit board provided with a conductor pattern for connecting between a pin of a connector and a terminal portion of a terminal block, and an electric wire connected to the terminal block is a front surface. It is connected by pressure contact using a lever that slides in from left to right. Further, the holding of the adapter is directly attached to the I / O unit by a mounting screw arranged on the adapter. In this eighth embodiment, as shown in FIG. 19, the electric wires are drawn out from the front side in the first embodiment. That is, in the first embodiment, the wire is pulled out laterally, but the wire is pulled out by 90 °,
Slide the lever 11 to the left and right,
The wire is pulled out in the front direction.

According to the eighth embodiment, since the electric wire is inserted into the terminal block 8 from the front side of the I / O unit 2 and is connected by the pressure welding method, the front surface of the I / O unit 2 can be connected even if the number of electric wires is large. It can be miniaturized so that it can be stored in a small space. Further, a printed circuit board 7 is provided as a relay between the connector 5 and the terminal block 8 and is integrated with a molded case 9.
Since the adapter 1 is configured so that it can be directly attached to the / O unit 2 by screw fixing, the wiring space for the terminal block unit 27 or the terminal block 29 and the cable are unnecessary. Furthermore, since the adapter 1 is directly attached to the I / O unit, the contact reliability of the connector is improved, and the electrical characteristics such as the voltage drop due to the cable are improved, and the number of wires of the cable is reduced. It has an effect that it can be applied to a particularly large number of uses or a use in which front drawing of the cable is required.

Example 9. A connector / terminal block conversion adapter of a control device according to a ninth embodiment of the present invention has a printed circuit board provided with a conductor pattern for connecting a pin of the connector and a terminal portion of the terminal block, and an electric wire connected to the terminal block. Is inserted from either the left lateral direction or the right lateral direction, and is connected by pressure contact using a lever that slides back and forth. Wiring symbols are attached to the front surface of the lever of the terminal block. Further, the holding of the adapter is directly attached to the I / O unit by a mounting screw arranged on the adapter. In the ninth embodiment, the wiring reference numeral 24 is displayed on the front surface of the lever 11 in the first embodiment. In FIG. 20, the reference numeral 24 for wiring indicates the connection No. of the electric wire. Shows the case.

According to the ninth embodiment, since the electric wires are inserted in the terminal block 8 from the lateral direction and connected by the pressure welding method, even if the number of electric wires is large, it can be accommodated in the small space in front of the I / O unit 2. Can be miniaturized. Further, since the printed circuit board 7 is provided as a relay between the connector 5 and the terminal block 8 and integrated with the molded case 9, the adapter 1 is configured so that it can be directly attached to the I / O unit 2 by screw fixing.
A wiring space for the terminal block unit 27 or the terminal block 29 and a cable are unnecessary. In addition, adapter 1
Since it is directly attached to the I / O unit, it has the effect of improving the contact reliability of the connector, improving the electrical characteristics such as reducing the voltage drop due to the cable, and displaying the wiring code 24 on the front surface of the lever 11. Since it is configured as described above, the worker can perform wiring and the like while looking at the display code, so that there is an efficiency that the wiring efficiency and the like are improved.

Example 10. A connector / terminal block conversion adapter of a control device according to a tenth embodiment of the present invention has a printed circuit board provided with a conductor pattern for connecting a pin of the connector and a terminal portion of the terminal block, and an electric wire connected to the terminal block is left. It is inserted from either the lateral direction or the right lateral direction, and is connected by pressure using a lever that slides back and forth. In addition, a recess is provided on the front surface of the lever of the terminal block. Further, the holding of the adapter is directly attached to the I / O unit by a mounting screw arranged on the adapter. The tenth embodiment is a lever 1 according to the first embodiment as shown in FIG.
The depression 25 is arranged in the center of the front surface of the No. 1.

According to the tenth embodiment, since the terminal block 8 has the wires inserted therein from the lateral direction and connected by the pressure welding method, the terminal block 8 can be housed in a small space in front of the I / O unit 2 even when the number of wires is large. Can be miniaturized. Further, since the printed circuit board 7 is provided as a relay between the connector 5 and the terminal block 8 and integrated with the molded case 9, the adapter 1 is configured so that it can be directly attached to the I / O unit 2 by screw fixing. A wiring space for the unit 27 or the terminal block 29 and a cable are unnecessary. Further, since the adapter 1 is directly attached to the I / O unit, the contact reliability of the connector is improved, and the electrical characteristics such as the voltage drop due to the cable is reduced, and the recess is formed on the front surface of the lever 11. Since 25 is arranged, there is an effect that the lever 11 can be press-fitted at the tip of a tribar or the like and workability is improved.

[0042]

As described above, in the connector / terminal block conversion adapter of the control device according to the present invention, (1) the connecting method of the connecting wire from the outside is such that the tip of the connecting wire is pressed by the lever pressing. A terminal that is either connected, connected by screwing the tip of the connection wire so that the tip of the screw pressurizes, or provided with a tab terminal at the tip of the connection wire and connected through this tab terminal. Whether to have a base, a connector connected to the control device, a printed circuit board for electrically connecting the terminal portion of the terminal block and the pins of the connector, and a cover body provided so as to cover the printed circuit board Or (2) the terminal block and the connector described above, the support body that supports the terminal block and the connector, and the connection body that electrically connects the terminal portion of the terminal block and the pin of the connector are provided. , If the number of connection lines is large compact also can be constructed in light weight, there is an effect capable of improving the electrical characteristics and reliability it is space saving of the apparatus using the same.

[Brief description of drawings]

FIG. 1 is a perspective view of a connector / terminal block conversion adapter according to an embodiment of the first invention.

FIG. 2 is a view showing a cross section AA of FIG.

FIG. 3 is a diagram showing a printed circuit board taken along the line BB in FIG.

FIG. 4 is a perspective view showing a method for pressure-welding an electric wire according to the first invention.

FIG. 5 is a diagram showing a method for pressure-welding an electric wire in the first invention.

FIG. 6 is a diagram showing a method for pressure-welding an electric wire according to the first invention.

FIG. 7 is a diagram showing a method for holding the connector / terminal block conversion adapter according to the second invention.

FIG. 8 is a diagram showing a method for holding the connector / terminal block conversion adapter according to the second invention.

FIG. 9 is a diagram showing a method for connecting an I / O unit having a card edge type connector and a connector / terminal block conversion adapter according to a third invention.

FIG. 10 is a perspective view showing a card edge portion of an I / O unit having a card edge type connector according to a third invention.

FIG. 11 is a diagram showing a state in which a connector and a terminal block are connected using an electric wire in the connector / terminal block conversion adapter according to the fourth invention.

FIG. 12 is a diagram showing a state in which a connector and a terminal block are connected using an electric wire in the connector / terminal block conversion adapter according to the fourth invention.

FIG. 13 is a diagram showing a state in which a connector and a terminal block are connected using an electric wire in the connector / terminal block conversion adapter according to the fifth invention.

FIG. 14 is a diagram showing a state in which a connector and a terminal block are connected using an electric wire in the connector / terminal block conversion adapter according to the fifth invention.

FIG. 15 is a diagram showing how electric wires are connected by terminal screws in the sixth invention.

FIG. 16 is a diagram showing how electric wires are connected by terminal screws in the sixth invention.

FIG. 17 is a diagram showing a state in which electric wires are connected by tab terminals in the seventh invention.

FIG. 18 is a view showing a state in which electric wires are connected by tab terminals in the seventh invention.

FIG. 19 is a perspective view showing a state in which an electric wire drawing direction is a front surface in the eighth invention.

FIG. 20 is a perspective view showing a state in which a wiring symbol is attached to the front surface of a lever of the terminal block in the ninth invention and a state in which a depression is formed in the front surface of the terminal block in the tenth invention.

FIG. 21 is a diagram showing a cross section CC in FIG. 20.

FIG. 22 is an explanatory diagram showing a conventional connection method.

FIG. 23 is an explanatory diagram showing another conventional connection method.

FIG. 24 is an explanatory diagram showing still another conventional connection method.

[Explanation of symbols]

 1 Connector / Terminal Block Conversion Adapter 2 I / O Unit 3 Mounting Screw 4 Mounting Nut 5 Connector 6 Connector 7 Printed Circuit Board 8 Terminal Block 9 Molded Case 10 Blade Contact 11 Lever 12 Through Hole 13 Skin Cover 14 Claw 15 Through Hole 16 connector 17 card edge 18 electric wire 19 flexible cable 20 terminal screw 21 contactor 22 tab terminal 23 contactor 24 reference numeral 25 indentation 26 cable with connector on both ends 27 terminal block conversion unit 28 cable with one side connector 29 terminal block 30 terminal block

Claims (11)

[Claims] 1. A method of connecting a connecting wire from the outside, the tip of the connecting wire is pressure-contacted by a lever to connect, or the tip of the connecting wire is screwed so that the tip of a screw presses it. Or a tab terminal is provided at the tip of the connection line to connect via the tab terminal, a terminal block, a connector to be connected to the control device, a terminal portion of the terminal block and a pin of the connector. A connector / terminal block conversion adapter for a control device, which includes a printed circuit board for electrically connecting the printed circuit board and a cover body provided so as to cover the printed circuit board. 2. The connector / terminal block conversion adapter for a control device according to claim 1, wherein the cover body is a molded product. 3. The method of connecting a connecting wire from the outside is as follows: the tip of the connecting wire is pressed and connected by pressing a lever, or the tip of the connecting wire is screwed so that the tip of a screw presses it. Or a tab terminal is provided at the tip of the connection line for connection via the tab terminal, a connector connected to the control device, and a support for supporting the terminal block and the connector. A connector / terminal block conversion adapter for a control device, comprising a body, and a connector for electrically connecting the terminal portion of the terminal block and the pin of the connector. 4. The connector / terminal block conversion adapter for a control device according to claim 3, wherein the support is a molded product. 5. The connector / terminal block conversion adapter for a control device according to claim 3, wherein the connector is one of a printed circuit board, a flexible cable, and an electric wire. 6. The connector / terminal block conversion adapter for a control device according to claim 1, wherein a connecting line connecting to the terminal block is drawn out in a direction in which the connector is mounted or in a direction perpendicular to the mounting direction. . 7. The control device according to claim 6, wherein the terminal block pressed by the pressing of the lever has a recess for facilitating the pressing in the pressing surface of the lever in the method of connecting the connecting wire from the outside. Connector / terminal block conversion adapter. 8. The connector / terminal block conversion adapter for a control device according to claim 1, wherein the terminal block has a display such as a signal name for each terminal. 9. The connector / terminal block conversion adapter for a control device according to claim 1, wherein the connector is a card edge type connector. 10. The connector / terminal block conversion adapter for a control device according to claim 1, wherein the connector / terminal block conversion adapter is screwed and fixed to the control unit. 11. The control device according to claim 1, further comprising an engaging portion that engages with the control portion, and the engaging portion is fixed to the control portion. Connector / terminal block conversion adapter.