JPH11260498A - Unit-type electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange plural fellow units easily and densely, and facilitate maintenance, by arranging a connector on the junction of a lower module with an upper module, and by forming a recess part, where an inter-unit connecting member is stored, on a part corresponding to the connector on the junction of the upper module with the lower module. SOLUTION: When a basic input-output unit 12 and an extended input-output unit 13 are arranged side by side on a mounting rail 9, an extended junction block 170 is used, in order to connect an inter-unit power-source connecting connector 87 and a basic/extended connecting connector 88 of a common base module 59 of these units. The block 170 is stored in a junction-block storing region which is formed by a recess part 195 on the side of the connector of the unit 12 and a recess 195 on the side of the connector of the unit 13. Consequently, the space, where an inter-unit connecting member is to be arranged, becomes unnecessary between the units, and fellow units can be arranged closely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit-type electronic device in which electronic components are dispersed in two housings, and more particularly to a distributed installation type process control / monitoring system for controlling / monitoring a plant or the like. The present invention relates to a unit electronic device that can be suitably used in a unit field controller or the like.

[0002]

2. Description of the Related Art FIG. 36 is a partially exploded perspective view showing an example of a conventional unit-type electronic device disclosed in Japanese Patent Application Laid-Open No. 7-261876. FIG. 1 shows an example in which a unit type electronic device is applied to an input / output unit. In the drawing, reference numeral 9 denotes a mounting rail on which a plurality of input / output units are mounted;
Reference numeral 00 denotes a base terminal module that is mounted on the mounting rail and includes an input / output terminal unit having a plurality of input / output terminals and a connection substrate unit integrally formed with the input / output terminal unit. I / O module 202 that is directly attached to
An electronic jumper 203 connects the connection board portions of the two base terminal modules to each other, and a power jumper 203 connects the input / output terminal portions of the two base terminal modules arranged adjacent to each other.

In such an input / output unit, a plurality of base terminal modules 200, 200 are arranged in a row on a mounting rail 9, and then the input / output modules 201, 201 are arranged on a connection board portion thereof. Parts are connected by an electronic jumper 202, and the input / output terminals are
It is formed by connecting at 03 and 203. In such an input / output unit, an input / output cable is connected to each input / output terminal, and signals input / output to / from the input / output terminals are input / output modules 201 and 201 and the electronic jumper 20.
It can be replaced by using a plurality of connection board parts connected by 2.

[0004]

As described above, the conventional unit-type electronic device is configured to connect the base terminal modules using the electronic jumper.
Compared to a case where the base terminal modules are connected to each other using a cable, the units can be firmly fixed, and a place to store the cable must be secured between the base terminal modules. Disappears. However, in the conventional unit-type electronic device, the electronic jumper 202 is buried between the input / output modules 201 after the input / output unit is assembled. Therefore, when the electronic jumper 202 is to be replaced, some of the input / output modules 201, 201 disposed around the electronic jumper 202 are appropriately removed, and then a finger is put around the electronic jumper 202. The electronic jumper must be grasped and pulled out. When a large number of such base terminal modules are arranged to construct a process control / monitoring system, the maintenance is very troublesome.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is a unit-type electronic device in which a plurality of units can be easily arranged with high density and maintenance is easy. The purpose is to obtain.

[0006]

A unit-type electronic device according to the present invention is provided with a connector for each of two adjacent units, and electrically connects the two units by connecting the connectors. In a unit-type electronic device to be connected, a printed circuit board, a plurality of connection member side connectors provided on one surface of the printed circuit board and directly connected to the connectors of the respective units, and a connector mounting surface of the printed circuit board Using the inter-unit connection member having a holding member attached to the back side of
Connecting the connectors of the two units, and further, the holding member is formed at a fixed portion fixed to the printed circuit board, a holding portion erected on the fixed portion, and an upper end of the holding portion. And the fixing portion and the top portion are formed wider than the holding portion.

In the unit type electronic device according to the present invention, each unit is divided into an upper module and a lower module which are divided in a direction along the arrangement direction, and the lower module is joined to the upper module. A connector is provided in the portion, and a concave portion for accommodating the inter-unit connecting member is formed in a portion corresponding to the connector at a joint portion of the upper module with the lower module.

In the unit-type electronic device according to the present invention, the storage area formed between the recess and the connector in a state where the upper module and the lower module are joined is a direction in which the inter-unit connecting member is inserted into the connector. Is smaller than the sum of the height of the inter-unit connection member in the direction and the fitting depth of the connector and the connector on the connection member side.

In the unit-type electronic device according to the present invention, a plurality of connectors are provided in each of the lower modules, and a full inter-unit connecting member for connecting all the connectors, and only a part of the plurality of connectors are connected. 1 to do
One of a plurality of inter-unit connection members and a terminal connection member that terminates a part or a plurality of connectors is selected and used as the inter-unit connection member.

[0010] The unit-type electronic device according to the present invention comprises:
The plurality of connectors connected by the one inter-unit connection member are arranged in each unit so that two units having the connector are arranged adjacent to each other in a state where they are arranged adjacent to each other. The holding portion is formed over the entire width of the printed circuit board in a direction perpendicular to the arrangement direction of the connectors.

In the unit-type electronic device according to the present invention, the holding member has a set of fixing members erected on a fixing portion on the back side of both ends in the forming direction of the holding portion. It sandwiches the substrate.

[0012] In the unit-type electronic device according to the present invention, the holding member has a heat radiating member provided on a fixing portion thereof.

In the unit type electronic device according to the present invention, an electromagnetic wave shielding plate is provided between the fixed portion of the holding member and the printed board.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a system configuration diagram showing a configuration example of a distributed installation type process control / monitoring system using a unit type field controller (unit type electronic device) according to Embodiment 1 of the present invention. In the figure, reference numeral 1 denotes a field installation panel which is distributed and installed in a field such as a plant and directly inputs state information of the field and directly outputs control information to each process of the field. An input / output cable for connecting the field installation panel 1 to plant equipment in the field, etc.
A low-speed field cable, such as a twisted pair cable, used to connect the plurality of field installation panels 1 and 1 to communicate control information and the like. Reference numeral 4 denotes a clean non-illustrated electric power separated from the field. A field server, which is installed in a room and integrally monitors the plurality of field installations 1 and 1, is connected to the field server 4 and the field installation panel 1, and communicates control information and the like between them. A high-speed field cable such as an optical cable used at the time, a system server 6 provided with control information for controlling the entire plant or the like, and a control server 7 for checking / changing control information and the like of the system server 6. 199 is a field terminal, a system server 6, and a system terminal 199. Connect an end device 7, a high-speed communication cable for use in communicating a control information between them.

In such a distributed installation type process control / monitoring system, the field server 4 is controlled based on the control information of the entire system stored in the system server 6.
When the control information of the management area is output to the field server 4, the field server 4 outputs the control information of the management area as control information of each of the field installation boards 1 and 1. To output control information to the field and obtain field state information.

FIG. 2 is a perspective view showing a configuration example of the field installation board 1 according to the first embodiment of the present invention. In the figure, 8 is a unit type field controller, 1a is an installation panel main body for storing these unit type field controllers 8, and 1b is an installation panel main unit 1.
It is an opening / closing door for a panel provided on the front surface of a so as to be openable and closable.

FIG. 3 is an enlarged view of a main part showing an example of an internal configuration of the field installation board 1 according to the first embodiment of the present invention.
In the drawing, 9 is a mounting rail fixed to the installation panel body 1a, and 10 is another unit 1 fixed to the mounting rail 9 and fixed on the same mounting rail 9 respectively.
A power supply unit for supplying power to 1 to 14; a low-speed relay unit 11 fixed to the mounting rail 9 and connected to the low-speed field cable 3;
Reference numeral 12 denotes a basic input / output unit fixed to the mounting rail 9 and connected to the input / output cables 2 and 2, respectively. Reference numeral 13 denotes an extension fixed to the mounting rail 9 and connected to the input / output cables 2 and 2, respectively. Reference numeral 14 denotes a high-speed relay unit fixed to the mounting rail 9 and connected to the high-speed field cable 5;

FIG. 4 is an explanatory view of a fixing procedure showing a fixing structure and a fixing method of each unit 10 to 14 to the mounting rail 9 according to the first embodiment of the present invention. In the figure, 16
Is a base case for each of the units 10 to 14, and 17 is a base case having a width slightly wider than the mounting rail 9.
Reference numeral 18 denotes a rail mounting recess formed over the entire one side surface of the base case 6. Reference numeral 18 denotes a rail mounting recess formed on one side surface of the base case 16 so as to be movable along the width direction of the rail mounting recess 17. Rail mounting sliders are arranged so that a part of them protrudes above the rail mounting recesses 17.
And a hook ring formed so as to protrude beside the base case 16 when the rail mounting slider 18 is in a normal state.

Then, as shown in FIG. 2A, the end of the rail mounting recess 17 opposite to the rail mounting slider 18 is engaged with one end of the mounting rail 9, and as shown in FIG. As shown, by rotating and pushing the base case 16 while maintaining the engaged state, the other end of the mounting rail 9 is stored in the rail mounting recess 17. At this time, after the rail mounting slider 18 is temporarily forcibly moved by the pushing pressure, the other end of the mounting rail 9 is stored in the rail mounting recess 17 to return to the original position. Therefore, the mounting rail 9 is sandwiched between the rail mounting slider 18 and the rail mounting recess 17, whereby the base case 16 of each of the units 10 to 14 is fixed to the mounting rail 9.

FIG. 5 is an explanatory diagram of a removing procedure showing a method of removing the base case 16 of each of the units 10 to 14 from the mounting rail 9 according to the first embodiment of the present invention. First, the tip of a flathead screwdriver or the like is inserted into the hooking ring 19, and the hooking ring 19 is pulled away from the base case 16. Thereby, the rail mounting slider 18 is separated from the mounting rail 9. In this state, the units 10 to 14 can be removed from the mounting rail 9 by pulling out the base case 16 to the front of the drawing.

FIG. 6 is a perspective view showing the structure of the power supply unit 10 according to the first embodiment of the present invention. In the figure,
Reference numeral 20 denotes a power supply unit body in which a rail mounting recess 17 is formed and a voltage conversion circuit and the like are built in.
Reference numeral 22 denotes a power supply unit opening / closing door which is provided on the front of the power supply unit main body 20 so as to be openable and closable.
Reference numeral 23 denotes a power input terminal group which is disposed on the front of the power supply unit 0 and to which the power cable 15 is connected. Reference numeral 25 denotes a group of alarm output terminals for outputting an alarm signal when a power supply abnormality occurs. Reference numeral 25 denotes a power supply output cable for outputting a predetermined electric power. is there.

FIG. 7 is an exploded perspective view showing the structure of the low-speed relay unit 11 according to Embodiment 1 of the present invention. The low-speed relay unit 11 includes a low-speed relay base case 27 in which a rail mounting recess 17 is formed, a communication board module 28 stored in the low-speed relay base case 27, and an expansion board stored in the low-speed relay base case 27. A module 29 and a low-speed relay base case 27 and a low-speed relay cover case 30 that covers these two board modules 28 and 29 are provided.

Each part will be described in detail. The low-speed relay base case 27 has a substantially rectangular parallelepiped shape and has a rail mounting recess 17 formed therein.
1, a board module storage section 32 that is opened inside the low-speed relay housing 31 so that the low-speed relay housing 31 has a substantially constant thickness and stores the two board modules; Is the board module storage 3 from the opposite side of the low-speed relay housing 31.
The board insertion opening 33 established up to 2 is a basic configuration. In the following, the low-speed relay housing 31
The portions where the rail mounting recesses 17 are formed are referred to as housing bottom portions 31a, and the portions to be erected on the housing bottom portions 31a are referred to as housing side surface portions 31b and 31c. A portion of the rail mounting recess 17 located in the extending direction is called a connection side housing side portion 31b, and a portion of the housing side portion located in the width direction of the rail mounting recess 17 is called an open side housing side portion 31c.

Each of the connection-side housing side surfaces 31b has a notch 3 for connection between units at the center of its upper end.
A hooking rib 3 extending from the housing bottom 31a to the inter-unit connection notch 34 at the center of the inner side surface is formed on one of the connection side housing side surfaces 31b.
5 are formed. In addition, the opening side housing side portion 3
1c, two mounting ribs 36 are formed on the inner surface thereof substantially in parallel with the hooking ribs 35, and are arranged in three rows so as to sandwich the mounting ribs 36 therebetween. Vent holes 37 are provided. At the same time, two cut-out portions 39 for taking out the low-speed field cable are formed in one open housing side surface portion 31c at a position where the upper end portion is equally divided into three, and a cover mounting hole 38 is formed at the center of the upper end portion. A pair of cover mounting recesses 40 are formed at both ends of the upper end of the other open housing side surface 31c. Further, the housing bottom 31
A mounting stud 41 is provided upright at a position adjacent to the connection-side housing side surface 31b opposite to the hooking rib 35.

The hook rib 35 is formed with two slits 42 and 43. The upper slit 42 formed near the upper end edge of the connection-side housing side surface portion 31b has a height substantially equal to the height of the mounting stud 41. The lower slit 43 formed at the same height position and near the lower end edge of the connection-side housing side surface portion 31b is formed at substantially the same height position as the upper end portion of the mounting rib 36. Furthermore, the hooking rib 35 divided by the two slits 42 and 43 is
A central portion between the upper slit 42 and the lower slit 43 is formed to protrude inward from an upper portion above the upper slit 42, and the upper slit 42 and the lower slit 43 are formed.
The lower part below the lower slit 43 than the central part between them protrudes further inward. In order to eliminate sink marks peculiar to the molded product and not to impair the design, a recess is formed on the outer surface in accordance with the amount of protrusion to keep the thickness constant.

The communication board module 28 is formed near the one end edge of the low-speed relay communication board 44, which is formed in a substantially square shape slightly smaller than the inner area of the housing side faces 31b, 31c. Fixing hole 4
5, two power supply connectors 46, 46 having a rectangular opening disposed at the end where the fixing hole 45 is formed and the end opposite thereto and used for power supply and communication between the units. These two units of power supply connectors 46, 46 are disposed at one end different from the disposed ends thereof,
Connection terminal 47a to which low-speed field cable 3 is connected
The fixing hole 45 is adjacent to the low-speed field cable connection terminal block 47 having the following structure, and the surface (back surface) of the low-speed relay communication board 44 different from the low-speed field cable connection terminal block 47 and the inter-unit power supply connection connectors 46, 46. Low-speed relay board-to-board connector 48 having a square opening disposed at a position
And

The expansion board module 29 has a low-speed relay expansion board 49 having substantially the same size as the low-speed relay communication board 44, and a stud formed at a position corresponding to the fixing hole 45 of the low-speed relay communication board. Notch 50 and a low-speed relay board connection connector 51 having a square opening disposed adjacent to the stud notch 50.

The low-speed relay cover case 30 has a housing front portion 52 formed in a curved shape having substantially the same size as the housing bottom portion 31a, and a cover-side housing side portion 53 formed around the housing front portion 52. And three cover case hooks 54 formed at the lower edge of the cover-side housing side surface 53 at positions corresponding to the cover mounting holes 38 and the cover mounting recesses 40, 40, respectively. Corresponds to the notches 55, 55 for connecting the covers on the cover side formed at the portions corresponding to the notches 34, 34 for connecting the units of the case, and the notches 39, 39 for extracting the low-speed field cable of the base case for low-speed relay. And two cover-side low-speed field cable takeout notches 56, 56 formed at the portions to be formed.

FIG. 8 is an assembly process diagram for explaining an assembly process of low-speed relay unit 11 according to Embodiment 1 of the present invention. Each process diagram is a cross-sectional view when the low-speed relay unit 11 is viewed from the side of the open housing side surface portion 31c.

As shown in FIG. 3A, the extension board module 29 is obliquely inserted into the board module storage section 32 from the board insertion opening 33, and the extension board module 29 is inserted.
Is inserted into the lower slit 43. On this occasion,
The insertion-side end of the extension board module 29 may be once brought into contact with the center of the hooking rib 35 and then pushed obliquely. Thereby, the extension board module 29
It is not necessary to align the leading end of the insertion direction with the lower slit 43 in a state where is inclined, and the insertion can be performed easily. Thereafter, as shown in FIG. 2B, the extension board module 29 is dropped into the board insertion opening 33, so that the extension board module 29 is placed in the board module storage section 32 with the lower slit 43. It can be mounted on the mounting rib 36.

Next, as shown in FIG. 3C, the communication board module 28 is obliquely inserted into the board module storage section 32 from the board insertion opening 33, and the insertion side end of the communication board module 28 is inserted. Insert into the upper slit 42. At this time, the insertion-side end of the communication board module 28 may be abutted against the upper part of the hooking rib 35 and then pushed obliquely. This eliminates the need to align the leading end of the communication board module 28 in the insertion direction with the upper slit 42 while keeping the communication board module 28 in an oblique state.
It can be easily inserted. Thereafter, as shown in FIG. 4D, the communication board module 28 is dropped into the board insertion opening 33, and then the low-speed relay board connection connectors 48 and 51 of the two board modules are directly connected to each other. Then, the communication board module 28 is pushed into the board insertion opening 33 so as to make it. Then, the communication board module 28
The upper slit 42 is provided in the substrate module storage section 32.
And the mounting stud 41.
Furthermore, by inserting the fixing screw 179 into the fixing hole 45 and fixing it to the mounting stud 41, these two board modules 28 and 29 can be fixedly stored in the base case 27 for low-speed relay.

Finally, as shown in FIG. 3E, the two cover case hooks 54, 54 provided at one end of the low speed relay cover case 30 are connected to the cover mounting recesses 40, 40.
After that, another cover case hook 54 provided at the other end of the low-speed relay cover case 30 is pushed in until it is fitted into the cover mounting hole 38, as shown in FIG. . Thereby, the low-speed relay cover case 30
The communication board module 28 and the expansion board module 29 can be accommodated in the low-speed relay base case 27.

FIG. 9 is a perspective view showing the structure of the low-speed relay unit according to the first embodiment of the present invention. In the figure, reference numeral 57 denotes a notch 34 for connection between units and a notch 5 for connection between units on the cover side.
5 is an opening for connection between units formed by 5 and
58 is a notch 3 for taking out a low-speed field cable.
9 and notch 56 for taking out low-speed field cable on cover side
And an opening for taking out the low-speed field cable.

FIG. 10 is an exploded perspective view showing the structure of basic input / output unit 12 and extended input / output unit 13 according to Embodiment 1 of the present invention. These two units 1
Reference numerals 2 and 13 use the same housing, and the functions of the electric circuits realized therein are slightly different. In the figure, reference numeral 59 designates a substantially rectangular outer shape, and has a rail mounting recess 17 at its bottom along the longitudinal direction.
Is a common base module formed with a plurality of input / output terminals 90, 90 to which the input / output cable 2 is connected.
And a terminal block module 61 disposed on the common base module 59 on the opposite side of the rail mounting recess 17. Reference numeral 61 denotes a terminal block module that is disposed on the common base module 59 along with the terminal block module 60. Output terminal 90
An input / output module (housing) that processes the signal according to (1).

FIG. 11 is an exploded perspective view showing the structure of the high-speed relay unit 14 according to Embodiment 1 of the present invention. In the figure, reference numeral 62 denotes a high-speed field cable connection module which is connected to the high-speed field cable 5 and is disposed on the common base module 59 on the opposite side to the rail mounting recess 17. And a high-speed communication control module (housing) arranged on the common base module 59 for processing signals related to the high-speed field cable 5.

FIG. 12 is an exploded perspective view showing the structure of the common base module 59 according to Embodiment 1 of the present invention. The common base module 59 has a substantially rectangular parallelepiped shape, and a rail mounting recess 17 is formed on the back surface of the rectangular parallelepiped along the longitudinal direction. It comprises a locking member 65 housed in the case 64 and a common board module 66 mounted on the surface of the common module base case 64 opposite to the surface on which the rail mounting recess 17 is formed. Also, in the drawing, the terminal block module 60 is mounted on the common board module 66.

Each part will be described in detail. The common module base case 64 has a substantially rectangular parallelepiped shape, and has a rail mounting recess 17 formed on the back surface of the rectangular parallelepiped along the longitudinal direction;
A locking member storage portion 68 opened from the side of the housing opposite to the rail mounting recess 17 to the inside of the housing so that the common module housing 67 has a substantially constant thickness, and a mounting position of the common board module 66. The basic configuration includes a housing side surface of the common module housing 67 and a reinforcing wall 69 integrally formed so as to extend upward.

A push button opening 70 is formed in the upper portion of the side wall of the housing where the reinforcing wall 69 is formed. The push button opening 70 is formed in a portion of the locking member storage 68 adjacent to the push button opening 70. Has a locking member mounting table 71 having an upper surface at the same height as the push button opening 70. In addition, this locking member mounting table 7
Two guide rails 72, 72 are formed on the upper surface of 1 along the direction in which the push button opening 70 penetrates, and a spring receiving convex portion 73 is formed between the two guide rails 72, 72. A pair of side guides 74 for holding the locking member 65 on the locking member mounting table 71 at both ends of the locking member mounting table 71 in a direction perpendicular to the penetration direction,
74 are formed.

On the inner surface of the common module housing 67, a plurality of mounting ribs 75 extending from the lower side of the upper edge of the side surface of the housing to the bottom of the housing are formed. Mounting stud 7 formed at the same height as the upper end of mounting rib 75
6 are provided upright.

Further, the reinforcing wall 69 is formed so as to extend to the side of the housing where the push button opening 70 is formed and to a part of the side of the housing on both sides thereof. In addition, in a portion above the push button opening 70, a notch 77 for fitting is formed at the upper end of the portion.

The locking member 65 includes two side guides 7.
Locking member main body 7 formed to have a width extending over the entirety between 4, 74
8, a pressing portion 79 protruding from one end of the locking member main body 78, and a pair of locking arms 80, 80 standing upright at a position near the end opposite to the pressing portion 79. At the tip of each of the locking arms 80, 80, the pressing portion 7
A pair of locking projections 8 formed to project in the same direction as 9.
1, 81, a pair of guide grooves 82, 82 formed on the surface on the back side of the surface on which the locking arms 80, 80 are erected, and a pair of guide grooves 82, 82; A leaf spring 83 is provided between the guide grooves 82 and is formed so as to be elastically deformable in the groove direction of the guide groove 82.

The common board module 66 includes a common board 84 formed in a substantially rectangular shape slightly smaller than the inner area of the housing side face, and a square board provided at a position adjacent to one long side of the common board 84. Port common card connector 85, and the common card connector 85
And the other long side of the common board 84, a square-shaped field card connection connector (connector) 86 disposed in parallel with the common card connector 85, and adjacent to each short side of the common board 84. The power supply connectors 87, 87 between the two square ports disposed at the positions, and the basic / extended connection connectors 88, two power ports connected adjacent to the power connectors 87, 87 between the units. , 88
And two arm insertion holes 89, 89 opened between the common card connector 85 and the field card connector 86 and between the basic / expansion connectors 88 on the common board 84. Consists of A portion adjacent to the other long side of the common substrate 84 is provided with a plurality of input / output terminals 90, 90 to which the input / output cable 2 is connected and a terminal cover 91 for covering the plurality of input / output terminals 90, 90. Is provided.

FIG. 13 is a perspective view showing a state in which the locking member 65 is attached to the common module base case 64 according to Embodiment 1 of the present invention. As shown in the figure, the locking member 65 has a pressing portion 79 having a push button opening 7.
It is mounted on the locking member mounting table 71 in a posture of being inserted from the inside at 0. At this time, both side portions of the locking member 65 are held between the side guides 74, 74, the respective guide grooves 82, 82 are adapted to the guide rails 72, 72, and the leaf spring 83 is formed by the spring receiving convex portion 73. Opening for push button 7
It is in contact with the 0 side surface. Therefore, as shown in FIG.
When the projecting portion (hereinafter, referred to as a push button) is pressed, the locking member 65 moves in the direction of the guide rails 72, 72.
The locking arms 80 also move in a direction away from the reinforcing wall 69. Further, since the leaf spring 83 is bent by the push button pressing operation, the locking member 65 returns to the normal position by releasing the hand from the push button. The arm insertion hole 8 formed in the common substrate 84
Reference numerals 9 and 89 are set to a size that does not come into contact with the locking arms 80 and 80 in the range of movement of the locking arms 80 and 80.

FIG. 14 is an exploded perspective view showing the structure of the input / output module 61 according to Embodiment 1 of the present invention. The input / output module 61 is connected to each of the relay units 11 and 14.
A main card board module 92 that performs data communication with the basic input / output unit 12 (in the case of the basic input / output unit 12) and performs data communication with the basic input / output unit 12 (in the case of the extended input / output unit 13); The terminal board module 60 exchanges data with the main board module 92 and transmits and receives signals to and from the field.
Field card board module 93 for inputting / outputting to / from each input / output terminal 90, 90, and a pair of side frames 9 sandwiching these two board modules 92, 93
4, 95, two stoppers 96, 97 connecting these two side frames 94, 95 to each other, a front cover 98 and a rear cover 99 covering between the two side frames 94, 95, and a front face of the front cover 98. And a print sticker 100 attached to the print sticker. In the description below, the side frame drawn on the right side in the drawing posture of FIG. 14 is called a right side frame 94, the side frame drawn on the left side is called a left side frame 95, and the stopper drawn on the top is called an upper stopper 96 The stopper drawn on the lower side is called a lower stopper 97.

Each component will be described in detail. The main card board module 92 includes a substantially rectangular main card board 101 on which various electronic components for realizing the communication function are mounted on one side, and a main card board 10 of the main card board 101.
(1) A square-shaped card-side common card connector 102 disposed on the electronic component mounting surface so as to protrude from the center of one short side, and along a short side opposite to the card-side common card connector 102. LEDs 103, 103 arranged in a row and a card-side common card connector 1
02, a rectangular-shaped inter-card connector 104 disposed on the back surface of the electronic component mounting surface adjacent to the short side opposite to the short side, and two for each long-side end of the main card board 101.
Locking piece insertion notches 105, 105 formed one by one.

The field card board module 93 is
Various electronic components for realizing the input / output function are mounted on one side, and a field card substrate 106 formed in the same shape as the main card substrate 101, and a central portion of one short side of the field card substrate 106 A card-side field card connector 107 having a square opening provided on the electronic component mounting surface so as to protrude, and a plurality of light emitting diodes arranged along a short side opposite to the card-side field card connector 107 108, a square-shaped inter-card connector 109 disposed on the back side of the electronic component mounting surface adjacent to the short side opposite to the card-side field card connector 107, and a main card board. It has four locking piece insertion notches 110, 110 formed at the same position as 101.

The left side frame 95 has a rectangular side panel 111 having substantially the same size as the main card board 101, and the side panel 111.
The side panel portion 111 is formed substantially vertically at one long side end portion and is formed in a rectangular shape wider than the height of the component mounted on the component mounting surface of the field card board 106. An upper panel portion 112, an under panel portion 113 similarly formed at the other long side end portion of the side panel portion 111, a plurality of ventilation holes 114, 114 formed in the side panel portion 111, and an upper panel portion 112. And two sets of locking pieces 115, 115 formed so as to extend from the ends of the under panel 113, and four hook through holes 116, 116 formed in the center of each locking piece 115, 115. And a grounding piece 117 erected inside from the width direction end of the under panel portion 113 so as to be substantially parallel to the side panel portion 111. In addition,
The spacing between the locking pieces 115, 115 of each set matches the spacing between the locking piece insertion notches 105, 110 formed at the long end of each card board 101, 106.

The light side frame 94 includes a side panel portion 118 formed in a rectangular shape having substantially the same size as the main card substrate 101, and the side panel portion 118.
The main panel 101 is formed in a rectangular shape which is substantially perpendicular to the side panel portion 118 and wider than the component mounted on the component mounting surface of the main card board 101 at one long side end. An upper panel portion 119, an under panel portion 120 similarly formed at the other long side end of the side panel portion 118, a plurality of ventilation holes 121, 121 formed in the side panel portion 118, and an upper panel portion 11
9 and two sets of locking pieces 123, 123 formed so as to extend from the ends of the under panel part 120, and four hook through-holes 124, opened at the center of the locking pieces 123, 123. 124, and four contact projections 125, 125 formed on the inner portions of the locking pieces 123, 123. The interval between the contact projections 125, 125 of each set is formed to be slightly smaller than the interval between the outer portions of the locking pieces 115, 115 of each set formed on the left side frame 95. .

Upper stopper 96 and lower stopper 97
Each of the stoppers is a stopper base 180 formed in a rectangular parallelepiped shape having substantially the same length as the long side of the main card substrate 101.
And four hook portions 18 erected on the stopper base portion 180 and formed so that the front end portion is formed larger than the base end portion.
1,181. Also, the four hook portions 18
Reference numerals 1 and 181 are arranged on a substantially straight line, and when two are formed as one set, an interval between the sets is the same as that of the hook through holes 116 and 116 of each set of the left side frame 95.

FIG. 15 is a perspective view showing a partially assembled state of the input / output module 61 according to Embodiment 1 of the present invention. This figure shows that the inter-card connectors 104 and 109 of the main card board module 92 and the field card board module 93 are fitted together, and the locking piece insertion notches 105 and 1 of each board module 92 and 93.
10 shows a state where the locking pieces 115 and 123 of each side frame are inserted. When the hook portions 181 and 181 of the stoppers are inserted into the hook through holes 116 and 124 in this state as shown in the figure, the relative positional relationship between the two side frames 94 and 95 is fixed. And a card-to-card connector 104, 1
The two board modules 92 and 93 connected at 09 are connected to the upper panel portions 112 and 112 of these two side frames.
119 and the under panel portions 113, 1
20 can be sandwiched between the leading edges without rattling.

FIG. 16 is a partially cutaway perspective view showing a partially assembled state of the input / output module 61 according to Embodiment 1 of the present invention, as viewed from a different viewpoint from FIG. As shown in the figure, in the assembled state, the grounding piece 117 provided on the left side frame 95 is
Is pressed against. Further, the right side frame 94 sandwiches each pair of locking pieces 115, 115 of the left side frame 95 between the respective pair of contact projections 125, 125, and these are pressed into contact with each other in a state where they bite each other. Therefore, these two side frames 94 and 95 are grounded via the field card board 106 and also function as an electromagnetic wave shield.

FIG. 17 is a perspective view showing a front cover 98 and a rear cover 99 of the input / output module 61 according to Embodiment 1 of the present invention.

The front cover 98 is attached to the side frame 9
A front cover front part 126 formed in a substantially rectangular parallelepiped shape slightly longer than the length of the short piece of 4,95, and standing upright at substantially one end of the front cover front part 126;
A front cover upper portion 127 having substantially half the length of the long side of the side frames 94 and 95, and a front cover upper portion 127 at the other end of the front cover front portion 126.
Erected substantially vertically in the same direction as
And a front cover lower portion 128 having a length substantially equal to a half of the long side of the front portion 95. In the front cover front part 126, two long slits 129, 129 are opened substantially in the center thereof in parallel with the longitudinal direction, and a front cover upper part 127 and a front cover lower part 128 are formed.
Each has a pressure-resistant securing rib 130, 130 formed in the center of the inner surface thereof along the direction in which it is erected, and has a rectangular stopper groove formed in the center of the outer surface thereof in the direction of erection. 131, 131 are formed. Furthermore,
Each of the pressure-resisting ribs 130 is provided with a locking piece insertion slit 132 at a bottom portion near the front cover front portion 126 in a state of communicating with the stopper groove 131. Two hook locking holes 133 and 133 are opened from the upper surface of the rib 130.

The rear cover 99 includes side frames 94,
A rear cover back part 134 formed in a substantially rectangular parallelepiped shape slightly longer than the length of the short piece 95, and one end of the rear cover back part 134 is erected substantially perpendicularly to the long sides of the side frames 94 and 95. And a rear cover upper portion 135 having substantially half the length of the rear cover portion 134, and the other end of the rear cover rear portion 134 is erected substantially perpendicularly to the rear cover upper portion 135 in the same direction as the rear cover upper portion 135. Rear cover lower portion 136 and rear cover rear portion 1
An insertion portion (joining portion) 137 extending from 34 to the opposite side of the rear cover upper portion 135 and the insertion portion 137
Opening 138,1 for two connectors opened inside
39 as a basic configuration. Also, the rear cover upper part 135 and the rear cover lower part 136 are respectively provided.
At the center of the inner surface, ribs 140, 140 for ensuring pressure resistance are formed along the standing direction, and at the center of the outer surface, rectangular stopper grooves 141, 141 are formed along the standing direction. Are formed. Further, a locking piece insertion slit 142 is formed in each of the pressure-resistant securing ribs 140 in a state of communicating with a stopper groove 141 at a bottom portion near the rear cover back surface 134.
2, two hook locking holes 143 and 143 are opened from the upper surface of the pressure-resistant securing rib 140.

Next, the front cover 98 and the rear cover 99
The structure for fitting with will be described. Rear cover lower part 136
A thin portion 144 is formed at the tip end of the front cover lower portion 128 so as to extend toward the inside surface thereof, while a thin portion 145 is formed at the tip end of the front cover lower portion 128 to extend toward the outside surface side. . Further, a thin portion 146 is formed near the inner surface of the lower portion 136 of the rear cover at the tip of the rib 140 for ensuring the pressure resistance formed on the lower portion 136 of the rear cover, while the rib 130 for securing the pressure resistance formed on the lower portion 128 of the front cover is formed.
A thin portion 147 is formed near the upper surface at the tip of the. Further, the thin portion 144 of the lower portion 136 of the rear cover is fitted on both sides of the rib 140 for assuring pressure resistance.
8,148 are formed while the lower front cover 1
Fitting projections 149, 149 are formed on both sides of the pressure-resistant securing rib 130 in the thin portion 145 of 28.
Therefore, when the front cover lower portion 128 and the rear cover lower portion 136 abut against each other, the thin portion 145 provided on the lower portion of the front cover and the thin portion 147 of the pressure-resistant securing rib on the front cover side provide the thin portion provided on the lower portion of the rear cover. Part 144 and rib 1 for securing pressure resistance on the rear cover side
Forty thin portions 146 can be sandwiched, and such a nested structure is configured so that their positions do not shift. In addition, with this, each fitting convex part 149, 14
9 fits into the respective fitting recesses 148, 148. Therefore, the front cover lower part 128 and the rear cover lower part 136 are merely abutted against each other, so that the fitting does not relatively shift.
Rear cover lower part 136 despite being formed separately
And it functions as an integral structure with the front cover lower part 128. Note that the rear cover upper portion 135 and the front cover upper portion 127 are also formed in the same shape of the front end portion, and function as an integrated structure though they are formed separately.

FIG. 18 is a top view showing a partially assembled state of input / output module 61 according to Embodiment 1 of the present invention. As shown in the figure, the locking pieces 115 and 123 of each side frame are inserted into the locking piece insertion slits 132 and 142, and the hook through holes 116 and 124 overlap the hook locking holes 133 and 143. State. Therefore,
The locking pieces 115 and 123 are pressed against each other by the contact convex portion 125, and the set 11 of the pressed locking pieces is pressed.
Locking piece insertion slits 132, 1 each including 5,123
42, these two locking pieces 115,
The relative positions of the 123 are not shifted.
Further, the fitting of the front cover 98 and the rear cover 99 does not come off.

Further, from the state shown in FIG.
6 and 97 are inserted into the stopper grooves 131, 131, the tips of the hook portions 181, 181 become hook engaging holes 133,
143 and two side frames 9
4 and 95 are fixed, and each stopper 9
6 and 97 are accommodated in the stopper grooves 131 and 141, so that the stopper bases 180 and 180 do not bend or bend. The mutual positional relationship between the side frames 94 and 95 is maintained. Therefore, the input / output module 61 can be formed into a strong integrated structure while having an assembly structure that can be formed by a simple assembly process without using parts requiring assembly man-hours such as screws.

Next, the shape of the insertion portion 137 of the rear cover 99 and its peripheral portion will be described. FIG. 19 is a perspective view of the input / output module 61 according to Embodiment 1 of the present invention as viewed from the rear side. The insertion portion 137 is formed in parallel with a substantially rectangular shaped insertion portion housing 150 formed integrally with the rear cover rear portion 134 and at the center of the rear side surface of the insertion portion housing 150. Two substantially square connector openings 138, 13 into which the card connectors 102, 107 of the board module are inserted.
9, two locking holes 194 and 194 opened between the two connector openings 138 and 139, and a connector opening 139 (hereinafter referred to as a field connector) into which the card-side field card connector 107 is inserted. Connector side recesses 195 and 195 formed in the housing corners at both ends in the vertical direction of the connector opening, and a connector opening 138 (hereinafter, common card connector) into which the card-side common card connector 102 is inserted. Insertion recess 19 formed from the housing side surface on the side of the housing opening) to a part of the housing side surface on both sides thereof.
6, 196 and an insertion protrusion 197 formed at the center of the side surface of the housing on the side of the common card connector opening 138.
And a plurality of insertion ribs 198, 1 erected in the insertion recesses 196, 196 along the insertion direction of the input / output module 61.
98. The depth of the recess of the insertion recess 196 is formed to be the same as the thickness of the reinforcing wall 69.

FIG. 20 is a partially enlarged perspective view of the insertion ribs 198, 198 and their peripheral portions according to the first embodiment of the present invention. As shown in the figure, the leading end 198a of each insertion rib 198 in the insertion direction is chamfered.

Next, the operation of attaching the input / output module 61 to the common base module 59 will be described with reference to FIG. As shown in the figure, the input / output module 61 is inserted into the common base module 59 while the positions of the insertion projection 197 and the fitting notch 77 are aligned. Thus, the common card connector 85 and the card-side common card connector 102 are directly connected, the field card connector 86 and the card-side field card connector 107 are directly connected, and the main card board module 92 and the field card board are connected. Module 93 is electrically connected to common substrate module 66.
At the same time, the distal ends of the locking arms 80, 80 are inserted into the corresponding locking holes 194, 194, and the locking projections 81,
81 is hooked on the inner surface of the insertion portion housing 150,
As a result, the input / output module 61 cannot be pulled out. Further, the reinforcing wall 69 and the insertion concave portions 196 and 196
The input / output module 61 is held by the reinforcing wall 69 in a state where
Is difficult to fall in the direction in which the field card connector 86 and the common card connector 85 are arranged. Further, the insertion convex portion 197 and the fitting notch 77 are fitted together, and the insertion concave portions 196 and 196 are also formed on the housing side surface sides on both sides of the housing side surface portion where the push button opening 70 is formed. Since the reinforcing wall 69 is fitted, it is difficult for the two connectors 85 and 86 to fall down in a direction perpendicular to the arrangement direction. And the insertion rib 198,1
98 into the insertion recesses 196 and 196 of the input / output module 61
And the insertion ribs 198, 198 are chamfered in the insertion direction, so that even if there is a molding error in these modules 61, 59, they are inserted smoothly and in a state where they are in contact with each other. can do.

FIG. 21 is a perspective view showing a state where locking member 65 and rear cover 99 according to Embodiment 1 of the present invention are separated. FIG. 22 shows Embodiment 1 of the present invention.
FIG. 11 is a perspective view showing a state in which a locking member 65 and a rear cover 99 are connected. As is clear from these figures, the input / output module 61 is connected to the common base module 59.
, The distal ends of the locking arms 80, 80 are inserted through the locking holes 194, 194 into the inside of the rear cover 99, and the locking projections 81, formed on the distal ends of the locking arms.
81 is hooked on the inner surface of the rear cover 99. Therefore, once the input / output module 61 is inserted into the common base module 59, it cannot be pulled out.

When pulling out the input / output module 61 from the common base module 59, the push button (79) is pressed to release the engagement between the engagement projections 81, 81 and the inner surface of the rear cover 99, and In this state, the input / output module 61 may be pulled out.

FIG. 23 is a transparent side view showing a connection state between substrates in a state where input / output module 61 and common base module 59 according to Embodiment 1 of the present invention are connected. As described above, the electric circuit in the input / output module 61 is used to exchange signals between the main card board module 92 for performing data communication and the main card board module 92 and transmit and receive signals to and from the field. Each input / output terminal 9 of the terminal block module 60
Since it is divided into a field card board module 93 that inputs and outputs between 0 and 90, the main card board module 92 is designed according to the type of data communication, and the field card board module 92 is designed according to the type of field. By designing and combining these, it is possible to support various input / output modules 61.
In addition, with such a division, each substrate module 9
The types of connectors 102 and 107 used for
It is possible to suitably select a withstand voltage according to the voltage of a signal to be used, and to completely separate design specifications required for the board modules 92 and 93 from each other. An output module 61 can be formed. In addition, each has a square-shaped connector 102,
107, and the connectors 102 and 107 are arranged side by side.
The input / output module 61 can be formed in a size appropriately matching the width of the input / output module, and a high-density layout of the unit type field controller can be realized.

FIG. 24 shows a basic junction block 19 according to the first embodiment of the present invention, which is used to connect only the inter-unit power supply connectors 87 of two common base modules arranged adjacent to each other.
FIG. The basic junction block 193 includes power supply connectors 87 and 8 between the units.
7 comprises a basic junction board module 191 for electrically connecting each other and a holding member 192 attached to the basic junction board module 191.

Each component will be described. The basic junction substrate module 191 includes a basic junction substrate 190 formed in a substantially rectangular shape, and two junction side unit power supply connectors 189, 1 disposed at both ends in the longitudinal direction of the basic junction substrate 190.
89, and two holding member fixing notches 187, 188 formed at both ends of the long side of the basic junction board 190 between the two junction side unit power supply connectors 189, 189. Also,
Power supply connector 1 between two junction side units
Reference numerals 89 and 189 are disposed near one end of the basic junction board 190 in the longitudinal direction. The notch 188 for fixing the holding member formed at one end has a narrow notch width and is formed at the other end. Notch 187 for fixing holding member to be formed
Has a wide notch width. Hereinafter, the notch 188 for fixing the holding member having a small width is referred to as a notch for fixing the holding member having a small width, and the notching portion 187 for fixing the holding member having a large width is referred to as a notch for fixing the holding member having a wide width.

The holding member 192 has a fixing portion 186 having a bottom surface substantially the same size as the basic junction substrate 190.
And the fixing portion 18 at the center of the fixing portion 186 in the long side direction.
6, a holding portion 185 erected over the entire width in the short side direction,
The fixed portion 1 is disposed above the holding portion 185 in the standing direction.
A top portion 184 having substantially the same size as 86 and a long side end portion of a fixing portion 186 on the back side of the surface on which the holding portion 185 is erected are formed to have a length substantially covering the entire side. The two contact ribs 183, 183 and the contact ribs 183, 1
A pair of fixed arms 182, 21, each of which has a fixed claw, which is provided at a substantially central portion of 83 and protrudes toward each other, is formed at a tip portion.
It consists of 0. Further, one of the pair of fixed arms 18
Reference numeral 2 is formed to have the same width as the narrow holding member fixing notch 188, and the other fixing arm 210 is formed to have the same width as the wide holding member fixing notch 187.

Then, the fixing arms 182, 21 from the opposite side of the basic junction board 190 from the connector mounting surface.
By pushing 0, the basic junction board 190 can be sandwiched between the pair of fixed claws, whereby the basic junction block 193 is formed integrally.

FIG. 25 shows a first embodiment of the present invention for connecting power supply connectors 87, 87 between units and basic / expansion connectors 88, 88 of two adjacent common base modules. FIG. 4 is an exploded perspective view showing an extended junction block 170 used for the present embodiment. This expansion junction block 170
The extension junction board module 158 electrically connects the inter-unit power supply connection connectors 87, 87 and the basic / extension connection connectors 88, 88, and a sandwiching member 192 attached to the extension junction board module 158.

The extension junction board module 158
Is an extended junction substrate 159 formed in a substantially rectangular shape having a longer side than the basic junction substrate 190.
And two junction-side basic / expansion connectors 160, 160 disposed at both ends of the extension junction board 159 in the longitudinal direction.
Two junction-side power supply connectors 161 and 161 arranged side by side at the portions adjacent to the extension connection connectors 160 and 160, and an expansion junction board 159 between these two junction-side power supply connectors 161 and 161. Holding member fixing notches 162, 16 formed at both ends of the longer side
3 Note that these two holding member fixing notches 162 and 163 are provided in the basic junction board module 1.
It is formed similarly to 91.

Then, the fixing arms 182, 21
By pushing 0, the extension junction board 159 can be sandwiched between the pair of fixed claws, whereby the extension junction block 170 is formed integrally.

FIG. 26 is an exploded perspective view showing terminal junction block 171 used to terminate power supply connector 87 between units in the first embodiment of the present invention. This terminal junction block 17
1 includes a terminal junction board module 164 for electrically terminating the inter-unit power supply connector 87 and a holding member 192 attached to the terminal junction board module 164.

Termination junction board module 164
Is a terminal junction substrate 16 formed in a substantially rectangular shape having substantially the same size as the basic junction substrate 190.
And a junction-side power supply connector 1 disposed at one end of the terminal junction board 165 in the longitudinal direction.
66 and a terminating component 16 such as a resistor disposed at the other end of the terminating junction board 165 in the longitudinal direction and terminating the wiring of the junction side power supply connector 166.
7 and two holding member fixing notches 168, 169 formed at both ends of the long side of the terminal junction board 165.
Consists of Note that the two notch portions 1 for fixing the holding members are provided.
68 and 169 are basic junction board modules 19
1 is formed in the same manner.

Then, the fixing arms 182, 21
By pushing 0, the terminal junction board 165 can be sandwiched between the pair of fixing claws, whereby the terminal junction block 171 is integrally formed.

FIG. 27 shows these junction blocks 193, 170, 171 according to the first embodiment of the present invention.
It is explanatory drawing which shows the attachment state of. The figure shows an example in which the basic input / output unit 12 and the extension input / output unit 13 are arranged side by side on the mounting rail 9. The power supply connectors 87, 87 between these common base modules 59, 59 are provided. And basic / expansion connector 8
An extended junction block 170 is used to connect 8,88 devices to each other. As shown in the figure, the extension junction block 170 is stored in a junction block storage area formed by the connector side recess 195 of the basic input / output unit 12 and the connector side recess 195 of the extension input / output unit 13. You. Also,
At this time, the gap between the top of the extension junction block 170 and the connector side recess 195 is the fitting depth of the inter-unit power supply connector 87 and the junction-side inter-unit power supply connector 161 or the basic / extension connection connector. It is formed so as to be smaller than the fitting depth between the connector 88 and the junction side basic / expansion connector 160.

FIG. 28 is an explanatory diagram for explaining an example of the definition of the fitting depth according to the first embodiment of the present invention. In the figure,
172 is a male connector, 174 is a pin provided on the male connector 172, 173 is a female connector, 1
Reference numeral 75 denotes an insertion hole provided in the female connector 173. And in such a combination of connectors,
The fitting depth is considered to match the length of the pin 174 of the male connector 172 projecting into the connector.

FIG. 29 is a front view showing a modification of the holding member 192 according to Embodiment 1 of the present invention. In the figure, reference numeral 176 denotes a radiation fin disposed on the fixing portion 152 of the holding member 192. By using the holding member 192 deformed in this way, the heat radiation effect from each of the junction blocks 193, 170, 171 can be improved.

FIG. 30 is an exploded perspective view showing a modification of each of the junction blocks 170, 171, 193 according to the first embodiment of the present invention. In the drawing, reference numeral 177 denotes a metallic electromagnetic wave shielding plate formed to have substantially the same size as the fixing portion 152, and 178 denotes contact ribs 155, 15 respectively.
5 is a cutout of a shielding plate formed at a position corresponding to No. 5. After the electromagnetic wave shielding plate 177 is sandwiched between the contact ribs 155 and 155, the sandwiching member 192 is inserted into each of the junction board modules 158, 164 and 191 so that each of the junction blocks 170, 171, and 1 is inserted.
93 can be formed. With this configuration, each junction block 170, 1
In addition to suppressing the electromagnetic wave radiation from 71, 193, it is possible to prevent the electromagnetic waves from entering the power supply line and the like in each of the junction blocks 170, 171, 193.

FIG. 31 is a perspective view showing an example of a configuration of the unit type field controller 8 according to the first embodiment of the present invention. The unit type field controller 8 according to this example is a configuration example in which a high-speed relay unit 14, a basic input / output unit 12, and a basic input / output unit 12 are sequentially arranged below a low-speed relay unit 11. In such a combination of units, the basic junction block 193 is used for connection between the communication board module 28 of the low-speed relay unit 11 and the common board module 66 of the high-speed relay unit 14,
The basic junction block 193 is used for connection between the common board module 66 of the high-speed relay unit 14 and the common board module 66 of the basic input / output unit 12, and the common board module 6 of the basic input / output unit 12 is used.
6 and a common board module 66 of the basic input / output unit 12
Junction block 1 for connection between units
93 is used. A terminating junction block 171 for terminating the inter-unit power supply connector 87 is attached to the common board module 66 of the basic input / output unit 12 disposed at the bottom. After the predetermined junction blocks 171 and 193 are attached between the units as described above, as shown in FIG. 32, the low-speed relay base case 27 and the common base module 5
The unit type field controller 8 is completed by attaching the predetermined low-speed relay cover case 30 and the modules 61 and 63 to the unit 9.

By connecting the units by using a plurality of types of junction blocks 171 and 193 in this manner, the power supplied from the power output cable 25 to the low-speed relay unit 11 and the connection to the low-speed relay unit 11 are established. A signal on the low-speed field cable 3 and a signal on the high-speed field cable 5 connected to the high-speed relay unit 14 are supplied to each of the basic input / output units 12 and 12 through the basic junction block 193. Is operated with the power and performs a control operation according to the communication data, thereby controlling / managing fields connected to the basic input / output units 12 and 12.

FIG. 33 is a perspective view showing another example of the configuration of the unit type field controller 8 according to the first embodiment of the present invention. The unit type field controller 8 according to this other example includes a basic input / output unit 12
This is a configuration example in a case where an extension input / output unit 13, an extension input / output unit 13, an extension input / output unit 13, and a basic input / output unit 12 are sequentially arranged. In such a combination of units, the basic input / output unit 1
2 common board module 66 and extended input / output unit 13
The extension junction block 170 is used for connection between the units with the common board module 66 of the first embodiment. A basic junction block 193 is used to connect the common board module 66 of the extended input / output unit 13 and the common board module 66 of the basic input / output unit 12 using the block 170. After the predetermined junction blocks 170 and 193 are attached between the units as described above, FIG.
As shown in FIG. 4, predetermined input / output modules 61 are attached to each common base module 59 to complete the unit type field controller 8.

By connecting the units using a plurality of types of junction blocks 170 and 193 in this manner, power is supplied to each unit, and each unit operates based on this power to control / manage the field. Is executed.

In the first embodiment, an example has been described in which a plurality of field installation boards 1, 1 installed in a field are connected to each other only by a low-speed field cable 3, as shown in FIG. As shown in FIG. 35, the distributed installation type process control / monitoring system according to the present invention may be configured such that a high-speed field cable 5 is used to connect a plurality of field installation panels 1 and 1 to each other. And
When these system configurations are compared, as is clear from the assumption that a twisted pair cable is used as the low-speed field cable 3 and an optical cable is used as the high-speed field cable 5, the system configuration example shown in FIG. Field installation board 1, 1 for 1
This is a field network configuration that can be suitably used in a relatively small plant such as a case where the field is controlled / monitored by being concentrated at a plurality of locations. This is a field network configuration that can be suitably used in a relatively large-scale plant or the like, for example, when controlling / monitoring a field by distributing and disposing the field installation boards 1 and 1.

As described above, according to the first embodiment, the basic junction board, the power supply connector between the junction-side units provided on one side of the board, and the mounting face of the connector on the board. The power supply connectors between the basic input / output units are connected using a basic junction block having a holding member attached to the back side of the unit. Can be firmly fixed. In addition, when cables are used to connect the connectors, it is necessary to take extra length of cables in consideration of the workability of connecting them, and the cables are stored between units. Although it is necessary to secure a space for performing the above, there is an effect that such a need is eliminated and the size can be reduced. The extended junction block has the same effect.

Further, in such a junction block, the holding member is further formed on a fixed portion fixed to the substrate, a holding portion provided upright on the fixed portion, and an upper end of the holding portion. Since the fixing portion and the top portion are formed wider than the holding portion, the top portion is caught on the belly of the finger when the holding portion of the holding member is held by the finger. Therefore, the holding member can be firmly pinched by the finger and pulled out, whereby there is an effect that the inter-unit connecting member firmly fixed by the plurality of connectors can be easily and reliably pulled out.

In particular, in the first embodiment, the power supply connector between a plurality of units and the basic / expansion connector connected by one junction block
Are arranged in each unit so that the three units are arranged adjacent to each other, and the holding member is provided so that the holding portion extends over the entire width of the printed circuit board in a direction perpendicular to the arrangement direction of the connector. As a result, the holding member can be held from a certain direction. Further, since the fixing portion of the holding member is formed wider than the holding portion, if a force is applied so as to tilt the holding member left and right in the holding posture, the connection member side provided on one side of the substrate is provided. Since the connector on the connection member side provided on the other side of the board can be made to act as a pulling force with the connector as a fulcrum, the junction block can be more easily and surely pulled out by pulling out the holding member while tilting the holding member left and right. There is an effect that can be pulled out.

Further, according to the first embodiment, a pair of fixing members are provided upright on the fixing portion on the back side of both ends in the forming direction of the holding portion, and the printed circuit board is fixed by this fixing member. Since they are sandwiched, they can be easily fixed. At the same time, since the substrate is sandwiched at both ends in the forming direction of the holding portion, even when the holding member is pulled out while tilting left and right, the holding state of the substrate by the fixing member is released by the force. There is an effect that the entire junction block can be easily and reliably pulled out without being lost.

According to the first embodiment, each unit is divided into an upper module and a lower module which are divided in the direction along the arrangement direction. Module and a common base module), and a power supply connector between units and a basic / expansion connection connector are arranged at a junction of the lower module with the upper module, and the lower module of the upper module is connected to the lower module. At the joints, the connector side recesses for housing the junction blocks are formed at the corresponding locations, so that the junction blocks can be arranged inside the unit, and the junction blocks are mounted on the outer peripheral surface of the unit. That people and things get caught as if It is possible to stop. At the same time, there is no need to secure the space for disposing the junction block between units,
There is an effect that the units can be arranged closer to each other.

According to the first embodiment, the junction block storage area formed in a state where the upper module and the lower module are joined together has a height in the insertion direction of the junction block, a fitting depth of the connectors, and the like. , The junction block does not fall off inside the storage area when the upper module and the lower module are joined. In spite of the fact that the junction block is arranged inside the unit, it can be estimated that these connectors are properly connected by visually checking the connection state of the upper module to the lower module. There is an effect that can be done.

According to the first embodiment, the lower module is provided with the inter-unit power supply connector and the basic / expansion connector, and the extension junction block for connecting all the connectors, and only a part of the extension junction block. Select one of the basic junction block to be used and the terminal junction block that terminates the power supply connector between units. can do. Therefore, there is an effect that the function of the unit-type electronic device can be changed / set by appropriately using the junction block.

According to the first embodiment, since the holding member provided with the heat radiating member on the fixing portion is fixed on the substrate, the heat of the substrate can be effectively radiated by using the holding member. This has the effect of suppressing the temperature rise of the substrate.

According to the first embodiment, since the electromagnetic wave shielding plate is provided between the fixing portion of the sandwiching member and the substrate, it is possible to prevent noise from entering the substrate and radiation of noise from the substrate to the outside. There is an effect that can be.

[0092]

As described above, according to the present invention, a printed circuit board, a plurality of connecting member side connectors provided on one surface of the printed circuit board and directly connected to the connectors of the respective units, Since the connectors of the two units are connected by using an inter-unit connection member having a holding member attached to the back surface side of the connector mounting surface of the printed circuit board, a cable or the like is used for connection between the connectors. The units can be firmly fixed as compared with the case. In addition, when cables are used to connect the connectors, it is necessary to take extra length of cables in consideration of the workability of connecting them, and the cables are stored between units. Although it is necessary to secure a space for performing the above, there is an effect that such a need is eliminated and the size can be reduced.

In such an inter-unit connecting member, the holding member further includes a fixing portion fixed to the printed circuit board, a holding portion erected on the fixing portion, and an upper end of the holding portion. Since the fixing portion and the top portion are formed wider than the holding portion, the holding portion of the holding member is caught by the finger when the holding portion of the holding member is held by the finger. Therefore, the holding member can be firmly pinched by the finger and pulled out, whereby there is an effect that the inter-unit connecting member firmly fixed by the plurality of connectors can be easily and reliably pulled out.

According to the present invention, each unit is divided into an upper module and a lower module which are divided in the direction along the arrangement direction, and a connector is connected to a joint of the lower module with the upper module. Since a concave portion for accommodating the inter-unit connection member is formed at a portion corresponding to the connector at a joint portion of the upper module with the lower module, the inter-unit connection member can be disposed inside the unit. Thus, it is possible to prevent a person or an object from being caught as in the case where the inter-unit connection member is mounted on the outer peripheral surface of the unit. At the same time, there is no need to secure a space for disposing the inter-unit connecting member between the units, so that the units can be arranged closer to each other.

According to the present invention, when the upper module and the lower module are joined to each other, the storage area formed between the recess and the connector has a height in the direction in which the inter-unit connecting member is inserted into the connector. The upper module and the lower module are joined to each other because the height is formed to be equal to or less than the sum of the height of the inter-unit connection member in the direction and the fitting depth of the connector and the connection member side connector. Therefore, the inter-unit connection member does not drop from the connector inside the storage area. In addition, although the inter-unit connection member is provided inside the unit, it is not possible to visually check the fitting state between the connector for the connection member and the connector, but the connection state of the upper module to the lower module is visually checked. As a result, it is possible to estimate that these connectors are properly fitted.

According to the present invention, a plurality of connectors are provided in each of the lower modules, a connection member between full units for connecting all the connectors, and one to a plurality of connectors for connecting only a part of the plurality of connectors. One of the end-to-part connecting members and the terminal-to-unit connecting member that terminates a part or a plurality of connectors is selected and used as the inter-unit connecting member. The connection state, and thus the function of each unit, can be set. Therefore, by properly using the inter-unit connection members in this way,
There is an effect that the function of the unit-type electronic device can be changed / set.

According to the present invention, the plurality of connectors connected by one inter-unit connecting member are arranged in each unit such that two units having the connector are arranged in a row in a state where they are arranged adjacent to each other. Is established,
Since the holding portion is formed over the entire width of the printed circuit board in a direction perpendicular to the arrangement direction of the connectors, the holding member can be held in a fixed direction. Further, since the fixing portion of the holding member is formed wider than the holding portion, if a force is applied so as to tilt the holding member left and right in the holding posture, the connection member side arranged on one side of the printed circuit board can be used. Since the connector can be used as a fulcrum to act as a pulling force for the connector on the other side of the printed circuit board, it is possible to more easily and reliably connect the units by pulling out the holding member while tilting the holding member left and right. There is an effect that the member can be pulled out.

According to the present invention, the holding member has a set of fixing members erected on the fixing portion on the back side of both ends in the forming direction of the holding portion, and the printed circuit board is held between the fixing members. These can be easily fixed. At the same time, since the printed circuit board is sandwiched at both ends in the forming direction of the holding portion, the holding state of the printed board by the fixing member is released by the force even when the holding member is pulled out while tilting the holding member left and right. There is an effect that the entire inter-unit connection member can be easily and reliably pulled out without being done.

According to the present invention, since the holding member having the heat radiating member provided on the fixing portion is fixed on the printed board, the heat of the printed board can be effectively radiated by using the holding member. Thus, there is an effect that the rise in the temperature of the printed circuit board can be suppressed.

According to the present invention, since the electromagnetic wave shielding plate is provided between the fixing portion of the holding member and the printed board, it is possible to prevent noise from entering the printed board and radiation of noise from the printed board to the outside. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing a configuration example of a distributed installation type process control / monitoring system using a unit type field controller according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration example of a field installation panel according to the first embodiment of the present invention.

FIG. 3 is an enlarged view of a main part showing an example of an internal configuration of the field installation panel according to the first embodiment of the present invention.

FIG. 4 is a fixing procedure explanatory view showing a fixing structure and a fixing method of each unit to a mounting rail according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram of a removing procedure showing a method of removing a base case of each unit from a mounting rail according to the first embodiment of the present invention.

FIG. 6 is a perspective view showing the structure of the power supply unit according to Embodiment 1 of the present invention.

FIG. 7 is an exploded perspective view showing the structure of the low-speed relay unit according to Embodiment 1 of the present invention.

FIG. 8 is an assembly process diagram for explaining an assembly process of the low-speed relay unit according to Embodiment 1 of the present invention;

FIG. 9 is a perspective view showing the structure of the low-speed relay unit according to Embodiment 1 of the present invention.

FIG. 10 is an exploded perspective view showing structures of a basic input / output unit and an extended input / output unit according to the first embodiment of the present invention.

FIG. 11 is an exploded perspective view showing the structure of the high-speed relay unit according to Embodiment 1 of the present invention.

FIG. 12 is an exploded perspective view showing a structure of a common base module according to Embodiment 1 of the present invention.

FIG. 13 is a perspective view showing a state in which a locking member is attached to the common module base case according to the first embodiment of the present invention.

FIG. 14 is an exploded perspective view showing the structure of the input / output module according to Embodiment 1 of the present invention.

FIG. 15 is a perspective view showing a partially assembled state of the input / output module according to Embodiment 1 of the present invention;

FIG. 16 is a partially cutaway perspective view of a partially assembled state of the input / output module according to Embodiment 1 of the present invention, as viewed from a different viewpoint from FIG. 15;

FIG. 17 is a perspective view showing a front cover and a rear cover of the input / output module according to Embodiment 1 of the present invention.

FIG. 18 is a top view showing a partially assembled state of the input / output module according to Embodiment 1 of the present invention.

FIG. 19 is a perspective view of the input / output module according to Embodiment 1 of the present invention as viewed from the rear side.

FIG. 20 is a partially enlarged perspective view of an insertion rib according to Embodiment 1 of the present invention and a peripheral portion thereof.

FIG. 21 is a perspective view showing a state in which the locking member and the rear cover according to Embodiment 1 of the present invention are separated.

FIG. 22 is a perspective view showing a state in which the locking member and the rear cover according to Embodiment 1 of the present invention are connected.

FIG. 23 is a transparent side view showing a connection state between boards in a state where the input / output module and the common base module according to the first embodiment of the present invention are connected;

FIG. 24 is an exploded perspective view showing a basic junction block used to connect only the inter-unit power supply connectors of two common base modules arranged adjacent to each other in the first embodiment of the present invention. .

FIG. 25 is a diagram showing an extension junction block used to connect power supply connectors between units and basic / expansion connectors of two common base modules arranged adjacent to each other in the first embodiment of the present invention; It is an exploded perspective view shown.

FIG. 26 is an exploded perspective view showing a termination junction block used for terminating an inter-unit power supply connector in the first embodiment of the present invention.

FIG. 27 is an explanatory diagram showing an attached state of these junction blocks according to the first embodiment of the present invention.

FIG. 28 is an explanatory diagram illustrating an example of defining a fitting depth according to the first embodiment of the present invention.

FIG. 29 is a front view showing a modification of the holding member according to the first embodiment of the present invention.

FIG. 30 is an exploded perspective view showing a modification of the junction block according to the first embodiment of the present invention.

FIG. 31 is a perspective view showing a configuration example of a unit type field controller according to the first embodiment of the present invention.

FIG. 32 is a perspective view showing a configuration example of a unit type field controller according to the first embodiment of the present invention.

FIG. 33 is a perspective view showing another configuration example of the unit type field controller according to the first embodiment of the present invention.

FIG. 34 is a perspective view showing another configuration example of the unit type field controller according to the first embodiment of the present invention.

FIG. 35 is a system configuration diagram showing another configuration example of the distributed installation type process control / monitoring system using the unit type field controller according to the first embodiment of the present invention.

FIG. 36 is a partially exploded perspective view showing an example of a conventional unit-type electronic device.

[Explanation of symbols]

11 low-speed relay unit (unit), 12 basic input / output unit (unit), 13 extended input / output unit (unit), 14 high-speed relay unit (unit),
27 Low-speed relay base case (lower module), 2
8 communication board module (lower module), 29 expansion board module (lower module), 30 low-speed relay cover case (upper module), 46, 87 power supply connector (connector) between units, 55 notch for connection between cover side units (Recess), 59 common base module (lower module), 61 input / output module (upper module), 63 high-speed communication control module (upper module), 88 basic / expansion connector (connector), 159 extension junction board (printed board) , 160 Junction side basic / expansion connector (connecting member side connector), 161, 166, 1
89 Junction side unit power supply connector (connecting member side connector), 165 terminal junction board (printed circuit board), 170 expansion junction block (full unit connecting member, unit connecting member), 171 terminal junction block (terminal unit connecting) 176 radiating fins (radiating members), 177 electromagnetic wave shielding plate, 182
Fixed arm (fixing member), 184 top portion, 185 holding portion, 186 fixing portion, 190 basic junction board (printed circuit board), 192 holding member, 193 basic junction block (part unit connection member, unit connection member), 195 connector Side recess (recess).

Claims (8)

[Claims] 1. A unit-type electronic device in which a connector is provided in each of two units arranged adjacent to each other and the connectors are connected to each other to electrically connect the two units. A plurality of connection member-side connectors provided on one side of the board and directly connected to the connectors of the respective units, and a sandwiching member attached to the back side of the connector mounting surface of the printed board. The connector of the two units is connected to each other using a connection member, and the holding member further includes a fixing portion fixed to the printed circuit board, a holding portion erected on the fixing portion, and the holding portion. A top portion formed at the upper end of the portion, and the fixing portion and the top portion are formed wider than the holding portion. Door-type electronic device. 2. A unit is formed by dividing each unit into an upper module and a lower module which are divided in a direction along the arrangement direction, and a connector is provided at a joint of the lower module with the upper module. 2. The unit type electronic device according to claim 1, wherein a concave portion for accommodating the inter-unit connection member is formed at a portion corresponding to the connector at a joint portion of the upper module with the lower module. 3. The storage area formed between the recess and the connector in a state where the upper module and the lower module are joined, the height in the direction in which the inter-unit connecting member is inserted into the connector has a height in the direction. 3. The unit-type electronic device according to claim 2, wherein the height is less than the sum of the height of the inter-unit connection member and the fitting depth of the connector and the connector on the connection member side. 4. A plurality of connectors are provided in the lower module, and a connection member between full units for connecting all the connectors, and a connection between one or more part units for connecting only a part of the plurality of connectors. 2. The unit-type electronic device according to claim 1, wherein one of the connecting members and a terminal-to-terminal connecting member that terminates a part or a plurality of connectors is selected and used as the unit-to-unit connecting member. 5. A plurality of connectors connected by one inter-unit connection member are arranged in each unit such that two units having the connector are arranged in a line in a state where they are arranged adjacent to each other. 2. The unit-type electronic device according to claim 1, wherein the holding member has a holding portion formed over the entire width of the printed circuit board in a direction perpendicular to the arrangement direction of the connectors. 6. The holding member has a set of fixing members erected on a fixing portion on the opposite side of both ends in the forming direction of the holding portion, and the printed circuit board is sandwiched between the fixing members. The unit-type electronic device according to claim 5. 7. The unit-type electronic device according to claim 1, wherein the holding member is provided with a heat radiating member on a fixing portion thereof. 8. The unit-type electronic device according to claim 1, wherein an electromagnetic wave shielding plate is provided between the fixing portion of the holding member and the printed circuit board.