JP3792906B2 - control panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a control panel including a plurality of electronic device modules that respectively control a plurality of external controlled devices, and more particularly to a wiring structure of an external line that connects between a controlled device and an electronic device module.
[0002]
[Prior art]
FIG. 12 is a front view schematically showing a wiring structure in a conventional control panel. This will be described with reference to FIG. 12. The control panel 50 is attached to the back plate 51 and both sides of the back plate 51. A casing is formed by the pair of square tube-shaped wiring ducts 52 and 52 and the pair of wiring ducts 53 having a U-shaped cross section spanned between the wiring ducts 52 and 52. A plurality of electronic devices 54 are screwed to the back plate 51, and one ends of the terminal portions 55 of these electronic devices 54 are connected to controlled devices (not shown), and the wiring ducts 52 and 53 are connected to the back plate 51. The other end of the wired outer line 26 is directly connected.
[0003]
FIG. 13 is a front view schematically showing a wiring structure in a control panel of a second conventional example. In the figure, five electronic device modules 61 are formed in the same outer shape and are arranged in a line in the left-right direction, and each electronic device module 61 has eight terminal portions arranged in a line in the vertical direction. 62 is provided. The external line 26 wired in the duct 52 and the duct 53 is led upward from a lead-out port (not shown) provided in the upper part of the duct 53 and connected to the terminal portion 62. The outer lines 26 connected to the electronic device modules 61 are bundled by clamps 64 when they are led out from the duct 53.
[0004]
[Problems to be solved by the invention]
However, among the above-described conventional control panels, in the first example, the mounting position of each electronic device 54 on the back plate 51 is not arranged at a fixed position in the left, right, up and down directions. It was difficult to determine the length of the outside line until the terminal portion 55 was connected. Therefore, it is necessary to adjust the length of all the outer lines to the length of the longest outer line and to cut and dispose of unnecessary portions during the connection work. In addition, since the external line is directly connected to the terminal portion of the electronic device module, rewiring becomes complicated when the wiring is mistaken, and workability is poor. In addition, since the arrangement of the terminal portions 55 of the electronic devices 54 varies and the numbers of the terminal portions 55 of the electronic devices 54 are not serial numbers, the connection work is complicated.
In order to solve this problem, a relay external terminal portion is provided at a position spaced apart from the duct 53 by the same distance, and an external line is temporarily connected to the relay external terminal portion, and the relay external terminal portion is interposed therebetween. Thus, an external line has been connected to the electronic device 54. However, since a space for providing the external terminal portion is required, there is a problem that not only the apparatus is increased in size but also the steps for providing the external terminal portion are increased. In addition, it requires two wiring diagrams: a wiring diagram (internal wiring diagram) between each electronic device in the control panel and the external terminal unit, and a connection diagram (external wiring diagram) between the external terminal unit and external line. Since the terminal number of the electronic device and the number of the relay terminal are different, the connection work is complicated.
Further, in the above-described second conventional example, an extra space is required in the height direction by a length H as a working space for leading the outer line 26 upward from the outlet 64. There was a problem of increasing the size.
[0005]
The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a control panel that is improved in workability and downsized.
[0006]
[Means for Solving the Problems]
In order to achieve this object, the invention according to claim 1 is a control panel in which an external line connected to a controlled device is connected to the electronic device module via a terminal portion, and a plurality of the electronic device modules are arranged in a line. As an electronic device unit, a plurality of electronic device units are arranged so that the terminal portions are arranged in a row on one end side of the electronic device unit, and the terminal portions and the other end portion of the electronic device unit are opposed to each other with an interval therebetween. Forming a space for wiring of the external line between these electronic device units , covering the space for wiring between the adjacent electronic device units, and providing a detachable cover on the electronic device unit; And the bottom plate is formed in a substantially L-shape, the front plate and the bottom plate are composed of two members, and the bottom plate is attached to the one electronic device unit. Those attached detachably the front plate to the bottom plate other electronic devices.
Therefore, the length of the outer line from the inlet of the outer line of the control panel to the terminal part can be set in advance. Further, the terminal portion is provided at a position close to the wiring space. Further, the wiring space between the electronic device units is opened on the operator side. Furthermore, the bottom plate can be attached before wiring, and the complicated operation of inserting the bottom plate under the wiring after wiring is not necessary.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a front view showing a schematic configuration of a control panel according to the present invention, FIG. 2 is a perspective view of the same electronic device unit, FIG. 3 is a perspective view showing the same main part, and FIG. 4 is a side view showing the same main part. It is. 5 is a perspective view of the lowest electronic device unit as viewed from the bottom side, FIG. 6 is a front view of the electronic device unit, and FIG. 7 is an enlarged front view of the electronic device unit.
[0008]
In FIG. 1, the control panel generally designated by reference numeral 1 includes a back plate 3 and a pair of side plates 4, 4 attached so as to stand opposite to both sides of the back plate 3. A chassis 2 formed in a letter shape is provided, and the front side of the chassis 2 is configured to be opened and closed by a door (not shown). Three electronic device units 6A, 6B, and 6C, which will be described later, are attached to the upper side of the back plate 3 so as to be parallel to each other in a horizontal state at equal intervals L in the vertical direction. A control module 7 is attached, and a power supply module 8 is attached to the lower side. Square tube-like wiring ducts 9 and 9 are attached to the inside of the side plates 4 and 4, and a plurality of rectangular introductions are provided on both sides of these wiring ducts 9 and 9, as shown in FIG. Holes 9a are formed at equal intervals in the vertical direction.
[0009]
Since the three electronic device units 6A, 6B, and 6C are formed in the same structure, only the electronic device unit 6A will be described below. In FIG. 2, an electronic device unit 6A includes a base 10A, five electronic device modules 20 mounted in a line on the base 10A, and a number of terminals electrically connected to these electronic device modules 20. The terminal block 21 is attached to the base 10A so that the portions 22 are arranged in a line. The base 10A has a back plate 11 formed in an elongated rectangular shape, opposite side plates 12 and 13, an upper plate 14, a support wall 16 and four partition walls 17 (see FIG. 5), the five electronic device modules 20 are detachably accommodated in the five boxes formed by the above method. Further, the base 10A has five boxes formed by the back plate 11, the side plates 12, 13, the support wall 16, the lower plate 15 erected on the back plate 11 and the four partition walls 18, and 5 Each terminal block 21 is detachably accommodated.
[0010]
Engaging recesses 19 are formed in the side plates 12 and 13 and the partition wall 18 so as to face each other. The five electronic device modules 20 and the five terminal blocks 21 correspond to each other, and the terminal portion 22 of the terminal block 21 extends to the lower side of the electronic device module 20 so that the inside of the electronic device module 20 is illustrated. It is electrically connected to the omitted printed wiring board. As shown in FIG. 6, serial numbers “1” to “40” are assigned to the upper surface of the support wall 16 corresponding to the 40 terminal portions 22 from the left end to the right end in the drawing. As shown in FIG. 7, a circuit diagram 24 of the electronic device module 20 is attached to the upper surface of the electronic device module 20 in correspondence with the terminal portion 22. That is, the circuit diagram 24 includes an internal circuit diagram 24a for displaying the internal circuit of the electronic device module 20 in which the circuit diagram is depicted above the terminal display unit, and a controlled device in which the circuit diagram is depicted below the terminal display unit. The external circuit diagram 24b for displaying the circuit shown in FIG. 5 and the “NC” display unit 24c to which the external line 26 is not connected.
[0011]
Three pairs of attachment pieces 11a project from the upper and lower sides of the back plate 11 of the base 10A described above, and three members extend to the upper plate 14 adjacent to the upper attachment pieces 11a. A joint groove 11b is formed. The three bases 10A, 10B, and 10C abut the back plate 11 on the back plate 3 of the housing 2 described above, insert screws through the mounting pieces 11a, and screw the screw holes (not shown) in the back plate 3. Is attached to the back plate 3. As shown in FIG. 1, the three bases 10A, 10B, and 10C attached to the back plate 3 as described above have a terminal block 21 attached to one end side of the bases 10A, 10B, and 10C, and the bases 10A, 10B, The other end of 10C is positioned so as to face each other with an equal interval L therebetween. The wiring spaces 25A and 25B having a distance L provided between the bases 10A, 10B, and 10C and the wiring space 25C having a length L below the base 10C function as a wiring duct. That is, the external line 26 connected to a plurality of controlled devices (not shown) and wired in the wiring duct 9 is introduced into the wiring spaces 25A, 25B, and 25C from the introduction hole 9a.
[0012]
As shown in FIG. 6, the introduced external line 26 is connected to the terminal portion 22 in correspondence with the serial number 23. As shown in FIG. 7, the connection can be made while checking against the external circuit diagram 24b, so that incorrect wiring is prevented and wiring work is facilitated, and wiring check is also easy. Become. Further, since the terminal portion 22 is provided at a position close to the wiring space 25, the connection work between the external line 26 and the terminal portion 22 is facilitated. Further, since the upper part of the wiring spaces 25A, 25B, and 25C is not covered with the duct member, it is not necessary to provide a work space for leading the outer line 26 from the lead hole of the duct member as in the conventional case, and therefore the wiring The height L of the working spaces 25A, 25B, and 25C can be minimized. Further, by attaching the electronic device module 20 and the terminal block 21 to the bases 10A, 10B, and 10C, the electronic device module 20 and the terminal portion 22 of the terminal block 21 are connected, and the electronic device module units 6A, 6B, and 6C are connected. Composed. This eliminates the need for internal wiring work and eliminates the need for checking internal wiring.
[0013]
3 to 5, reference numerals 28A, 28B, and 28C denote covers that cover the opening on the front side of the wiring space 25, and these covers 28A, 28B, and 28C all have the same shape. Only will be described with reference to FIG. The cover 28 </ b> C is formed in an L-shaped cross section by the front plate 29 and the bottom plate 30, and at the edge of the bottom plate 30, three engagement pieces 31 having U-shaped cutouts 31 a are erected, The width l of these engagement pieces 31 is formed to be the same length as the width l of the engagement groove 11b of the base 10A shown in FIG. The front plate 29 of these covers 28A, 28B, 28C is provided by the electronic device module 20 corresponding to the electronic device module 20 attached to the covers 28A, 28B, 28C when attached to the bases 10A, 10B, 10C. A display unit 32 with the name of the controlled device to be controlled is provided.
[0014]
In such a configuration, the engaging piece 31 of the cover 28A is engaged with the engaging groove 11b of the second base 10B in the wiring space 25A between the uppermost base 10A and the second base 10B. The upper end of the front plate 29 of the cover 28A is engaged with the engaging recess 19 of the uppermost base 10A, so that the opening on the front side of the wiring space 25 is covered with the front plate 29. Similarly, the opening on the front side of the wiring space 25B between the second base 10B and the third base 10C is covered by the front plate 29 of the cover 28B. Further, in the wiring space 25C below the third base 10C, as shown in FIG. 5B, screws 31b inserted into the notches 31a of the engagement pieces 31 of the cover 28C are screw holes of the back plate 3. Screw onto 3a. By engaging the upper end of the front plate 29 of the cover 28C with the engagement recess 19 of the third base 10C, the opening on the front side of the wiring space 25C is covered by the front plate 29 of the cover 28C.
[0015]
As described above, the covers 28A, 28B, and 28C are detachably removed, so that the wiring space 25A, 25B, and 25C is always opened on the front side, that is, on the wiring operator side, so that the wiring work is easy. Further, since the notch 31a for attaching the screw is formed in the engagement piece 31 of the covers 28A, 28B, 28C, the covers 28A, 28B and the cover 28C can be used in the same shape, and thus the parts Can be reduced.
[0016]
8 to 11 show a second embodiment of the present invention, in which FIG. 8 is a perspective view of a bottom plate that is a component of the cover, and FIG. 9 is a perspective view of a front plate that is a component of the cover. 10 is a side view showing the main part, and FIG. 11 is a perspective view showing the main part.
This second embodiment is characterized in that the cover 28A, 28B, 28C is divided into two members, a bottom plate 33 and a front plate 34. That is, as shown in FIG. 8, one end 35 of the bottom plate 33 is bent at a right angle. The bent portion 35 has three attachment holes 36 and two escape holes 37a adjacent to the attachment holes 36. 37a and a relief notch 37b, and three slit-like engagement holes 38 are formed at the other end. In FIG. 9, the front plate 34 is formed in a substantially flat plate shape, and an engaging portion 40 having a crank-like cross section is formed over the entire width at one end portion, and three crank-like cross sections are formed at the other end portion. An engaging portion 41 is formed.
[0017]
In such a configuration, before wiring the outer line 26 to the wiring space 25A, the screw 39 is inserted into the mounting hole 36 of the bottom plate 33 in advance and screwed into the screw hole (not shown) of the back plate 3 of the housing 2. Thus, as shown in FIG. 11, the bottom plate 33 is mounted on the back plate 3 so that the bottom plate 33 is placed on the upper plate 14 of the base 10B. Next, a connection work between the wiring of the outer line 26 and the terminal portion 22 in the wiring space 25A is performed, and when the work is completed, one engagement portion 41 of the front plate 34 is engaged with the engagement hole 38 of the bottom plate 33. Let As shown in FIG. 11, by rotating the engagement hole 38 around the rotation center and engaging the other engagement portion 40 with the engagement recess 19 of the base 10A, as shown in FIG. The opening of the space 25A is covered.
[0018]
Thus, the cover 28A, 28B, by divided 28C into two members of the bottom plate 33 and front plate 34 may be attached wiring space 25A, 25B, the bottom plate 33 before interconnect an outside line 26 to 25C Therefore, a complicated operation of inserting the bottom plate 33 below the wired outer line 26 is not necessary. Further, even if the other engaging portion 40 of the front plate 34 and the engaging recess 19 of the base 10A are misaligned due to a manufacturing error or the like, the engagement of the one engaging portion 41 of the front plate 34 and the bottom plate 33 is engaged. It is possible to absorb the misalignment between the holes 38.
[0019]
【The invention's effect】
As described above, according to the first aspect of the present invention, the length of the external line from the external line inlet of the control panel to the terminal portion can be set in advance, so that no extra length of external line is generated. Further, the cutting work of the extra outer line becomes unnecessary, the workability is improved, and the economy is excellent. In addition, since the terminal portion is provided at a position close to the wiring space, it is easy to connect the outside line, and it is not necessary to draw the outside line from the outlet of the wiring duct. Therefore, the control panel can be miniaturized. Furthermore, since the relay terminal block is not required, the internal wiring work is not required and the internal wiring check is not required. Further, since the wiring space between the electronic device units is open on the operator side, the workability is improved and the cover can be easily attached and detached. Further, since the bottom plate can be attached before wiring, a complicated operation of inserting the bottom plate under the wiring after wiring is not necessary. Moreover, it becomes possible to absorb the position shift between the front plate and the electronic device module between the front plate and the bottom plate.
[Brief description of the drawings]
FIG. 1 is a front view showing a schematic configuration of a control panel according to the present invention.
FIG. 2 is a perspective view of an electronic device unit in a control panel according to the present invention.
FIG. 3 is a perspective view showing a main part of a control panel according to the present invention.
FIG. 4 is a side view showing a main part of the control panel according to the present invention.
FIG. 5 is a perspective view of the lowest electronic device unit in the control panel according to the present invention as viewed from the bottom surface side.
FIG. 6 is a front view of an electronic device unit in the control panel according to the present invention.
FIG. 7 is an enlarged front view of the electronic device unit in the control panel according to the present invention.
FIG. 8 is a perspective view of a bottom plate, which is a component part of a cover, showing a second embodiment of the control panel according to the present invention.
FIGS. 9A and 9B show a control panel according to a second embodiment of the present invention, which is a front plate that is a component part of a cover, wherein FIG. 9A is a front view, FIG. 9B is a bottom view, and FIG. FIG.
FIG. 10 is a side view showing a main part of a second embodiment of the control panel according to the present invention.
FIG. 11 is a perspective view of a main part showing a cover attachment state in the second embodiment of the control panel according to the present invention.
FIG. 12 is a front view schematically showing a wiring structure in a conventional control panel.
FIG. 13 is a front view schematically showing a wiring structure in a control panel of a second conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Control panel, 6A, 6B, 6C ... Electronic equipment unit, 10A, 10B, 10C ... Base, 11b ... Engaging groove, 19 ... Engaging recess, 20 ... Electronic equipment module, 22 ... Terminal part, 23 ... Serial number, 24 ... Circuit diagram, 25 ... Wiring space, 26 ... External line, 28A, 28B, 28C ... Cover, 29, 34 ... Front plate, 30, 33 ... Bottom plate, 31 ... Engagement piece, 32 ... Display part, 38 ... Engagement Joint hole, 41... Engaging portion.

Claims (1)

In a control panel in which an external line connected to a controlled device is connected to an electronic device module via a terminal portion, a plurality of the electronic device modules are arranged in a line to form an electronic device unit, and the terminal portion is provided at one end of the electronic device unit. Are arranged in a row, and a plurality of electronic device units are arranged so that the terminal portion and the other end portion of the electronic device unit are opposed to each other with a space therebetween, whereby the space for wiring of the external line is provided between these electronic device units. Covering the wiring space between the adjacent electronic device units, and providing a detachable cover to the electronic device unit, and forming the cover into a substantially L-shaped cross section consisting of a front plate and a bottom plate, The front plate and the bottom plate are composed of two members. The bottom plate is attached to the one electronic device unit, and the front plate is detachably attached to the bottom plate and the other electronic device. Control board, characterized in that with the.

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