JP2010226936A - Control unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a degree of flexibility in layout within a distribution panel, by preventing an operation display face from being reversed, even when being rotated in the installation direction by 180 degrees. <P>SOLUTION: A control unit has a main unit 1 which consists of a first case 11; an input/output terminal part 12 prepared at the right end of the first case 11; a signal processing section 12 electrically connected to the input/output terminal part 12, and a first connector 14 electrically connected to the signal processing section 14; and a sub unit 2, which consists of a second connector 21 which is removably installed on the first connector 14 and electrically and mechanically connected to the first connector 14; and an operation display portion 22, which consists of a display portion 241 and an operation portion 242 and is formed on the front surface of the second case 23. The first and second connector 14, 21 are formed mutually connected, without having to change the installation direction of the sub unit 2 to the distribution panel, even when the right end of the first case 11 turns either to the right or to the left. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a control unit.

  2. Description of the Related Art Conventionally, there has been provided a control unit that is disposed in a distribution board and controls an electrical device such as a remote control breaker that is disposed in the distribution board (see, for example, Patent Document 1).

  The control unit has a substantially rectangular box-shaped case, an input terminal provided at one end of the case, an output terminal provided at the other end of the case, and an electrical connection provided between the input terminal and the output terminal provided in the case. And an operation display screen provided with a display unit displayed by a display signal received from the signal processing unit and an operation unit for performing an operation for transmitting an operation signal to the signal processing unit.

  The input terminal is electrically connected to an external device such as a programmable logic controller (hereinafter referred to as PLC) or a server provided inside or outside the distribution board via a lead wire.

  The output terminal is electrically connected to electrical equipment such as a remote control breaker and a time switch provided in the distribution board via a lead wire.

  The signal processing unit generates a control signal based on an input signal received from an external device via the input terminal, and controls the electric device by outputting the control signal to the electric device via the output terminal.

  The operation display surface is provided on the case surface and comprises an operation section and a display section. The operation section stops the operation of the control unit and the ON button for performing an operation for transmitting an operation signal for starting the operation of the control unit. An OFF button for performing an operation for transmitting an operation signal to be operated, and a slide knob for performing an operation for transmitting an operation signal for performing an operation for switching the operation mode during operation of the control unit to automatic, manual, or OFF Is done. Here, an ON character is printed on the ON button, and an OFF character is printed on the OFF button. In addition, in the vicinity of the slide knob, automatic, manual, and off characters are printed according to the operation mode corresponding to each position of the slide knob.

  In addition, the display unit is provided with a plurality of windows, and an LED that is lit by a display signal received from the signal processing unit can be confirmed from the outside through the window, and further, in the vicinity of each window. Is printed with characters indicating the operating status of the control unit. Therefore, the operation state of the control unit can be confirmed by confirming the lighting state of the LED from the window corresponding to each character.

JP 62-147903 A

  2. Description of the Related Art In recent years, a conductive bar type distribution board is used in which a plurality of remote control breakers are arranged in parallel along each long side of a long plate-like conductive bar, and each remote control breaker is plugged in to the conductive bar.

  However, since the control unit in the above conventional example is provided with an input terminal at one end and an output terminal at the other end, the control unit does not correspond to the conductive bar type distribution board.

  Specifically, when the control unit is applied to the conductive bar type distribution board, the control unit is arranged in parallel with the remote control breaker on one side or the other side of the long side of the conductive bar, and one end of the case Alternatively, since the other end is disposed to face the conductive bar, either the input terminal or the output terminal is close to the conductive bar.

  Then, since the lead wire connected to the terminal on the side close to the conductive bar is in contact with or close to the conductive bar through which a large current flows, the signal transmitted through the lead wire is affected by noise, causing the electrical device to malfunction. In addition, since the distance between the terminal provided on the conductive bar side and the conductive bar is narrow, there is a risk that it may be difficult to insert and remove the lead wire with respect to the terminal.

  Therefore, as a control unit for preventing the above problem, there is a control unit in which both the input terminal and the output terminal are provided at one end of the case and the other end of the case where the input terminal and the output terminal are not provided is opposed to the conductive bar. It is done.

  The control unit in which both the input terminal and the output terminal are provided at one end of the case needs to be opposed to the conductive bar at the other end of the case. Therefore, the control unit is disposed to face the long side on one side of the conductive bar. The control unit needs to be rotated 180 degrees so that the installation direction is reversed between the case where it is disposed and the case where it is disposed opposite the long side of the other side of the conductive bar.

  However, the operation display surface of the control unit is turned upside down by the rotation, so that the characters displayed on the operation display surface are turned upside down. Further, the operation direction of the operation unit, the operation unit, and the display unit Therefore, the installation direction cannot be rotated by 180 degrees with respect to the distribution board, and it is not a configuration that can be installed on both sides of the conductive bar. That is, the control unit can be disposed only at a position facing the long side on one side of the conductive bar or a position facing the long side on the other side of the conductive bar.

  The present invention has been made in view of the above-mentioned reasons, and its purpose is to prevent the operation display surface from being inverted even when the installation direction is rotated 180 degrees, and to be arranged in the distribution board. It is to provide a control unit having a degree of freedom.

  The invention of claim 1 is a control unit for controlling an electric device disposed in a distribution board, and is provided at a hollow box type case, an input terminal provided at one end of the case, and one end of the case. An output terminal electrically connected to the electric device, and a signal processing unit that generates a control signal based on an input signal received via the input terminal and outputs the control signal to the electric device via the output terminal; and A main unit composed of a first connector provided on the case surface and electrically connected to the signal processing unit, and detachably provided on the first connector and electrically and mechanically connected to the first connector A second connector to be connected, a display unit displayed by a display signal received from the signal processing unit via the first and second connectors, and an operation unit for performing an operation for transmitting an operation signal to the signal processing unit With At least one of which is provided with a subunit composed of an operation display surface, and the first and second connectors have one end of a case provided with an input terminal and an output terminal facing one direction. It is provided in a shape and a position that can be connected to each other without changing the installation direction of the subunit with respect to the distribution board, regardless of whether the direction is opposite to the one direction or the other direction. To do.

  According to the present invention, the main unit provided with the input terminal and the output terminal and the subunit provided with at least one of the display unit and the operation unit are provided separately, and the main unit is further provided. Change the installation direction of the subunit with respect to the distribution board regardless of whether one end of the case provided with the input terminal and output terminal of the unit is facing one direction or the other. Since the second connector of the sub unit can be attached to and detached from the first connector of the main unit without any problems, the operation display surface is prevented from being inverted even when the installation direction of the main unit is rotated 180 degrees. Thus, a degree of freedom can be given to the arrangement in the distribution board.

  According to a second aspect of the present invention, the first and second connectors are each provided with a plurality of electrode pieces, and the first and second connectors are electrically connected to each other. Are electrically connected, and two first connectors are formed point-symmetrically with respect to the rotation center of the main unit when turning the main unit from one direction to the other direction by rotating the main unit. The two first connectors are characterized in that electrode pieces are arranged point-symmetrically with respect to the rotation center.

  According to this invention, even when the installation direction of the main unit is rotated 180 degrees, the operation display surface can be prevented from being inverted, and the arrangement in the distribution board can be given a degree of freedom. Furthermore, since a connector having a plurality of electrode pieces can be used as the first and second connectors, the circuit configuration for transmitting and receiving signals between the main unit and the subunit can be simplified.

  According to a third aspect of the present invention, the first and second connectors each include a plurality of electrode pieces, and the first and second connectors are electrically connected to each other. Are electrically connected, and the second connector is formed in two points symmetrically with respect to the rotation axis of the main unit when turning one end of the case from one direction to the other by rotating the main unit, The two second connectors are characterized in that electrode pieces are arranged point-symmetrically with respect to the rotation axis.

  According to this invention, even when the installation direction of the main unit is rotated 180 degrees, the operation display surface can be prevented from being inverted, and the arrangement in the distribution board can be given a degree of freedom. Furthermore, since a connector having a plurality of electrode pieces can be used as the first and second connectors, the circuit configuration for transmitting and receiving signals between the main unit and the subunit can be simplified.

  As described above, according to the present invention, it is possible to prevent the operation display surface from being inverted even when the installation direction is rotated 180 degrees, and to provide a degree of freedom in the arrangement in the distribution board. effective.

The cross-sectional schematic of the control unit in embodiment of this invention is shown. The front view of the control unit in the same as the above is shown. The bottom view of the 1st case of the control unit same as the above is shown. The schematic block diagram of the control unit in the same as the above is shown. The arrangement | positioning figure of the 1st, 2nd connector of the control unit in the same as the above is shown. The front view at the time of arrange | positioning the control unit in the same as the inside of a distribution board is shown. The front view at the time of rotating the installation direction of the main unit of the control unit same as the above by 180 degrees is shown.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment)
The control unit in the present embodiment is provided in the distribution board, and controls electric devices such as a remote control breaker provided in the distribution board. The distribution board referred to here has a plurality of remote control breakers arranged in parallel along each long side of a long plate-like conductive bar provided in the distribution board, and the remote control breaker is plugged into the conductive bar. It is a plug-in distribution board connected.

  As shown in FIGS. 1 and 2, the control unit includes a first case 11 having a substantially rectangular box shape, an input / output terminal portion 12 provided at the right end of the first case 11, and a first case 11. A main unit 1 including a signal processing unit 13 electrically connected to the input / output terminal unit 12 and a first connector 14 electrically connected to the signal processing unit 13; A second connector 21 that is detachably provided on one connector 14 and is electrically and mechanically connected to the first connector 14; and an operation display board 22 that is electrically connected to the second connector 21. And a second case 23 for storing the operation display board 22, and a subunit 2 composed of an operation display surface 24 provided on the front surface of the second case 23. In the following description, the vertical and horizontal directions in FIG.

  The first case 11 of the main unit 1 has dimensions L1 to L4 shown in FIGS. 1 and 2 of 96 mm, 90 mm, 60 mm, and 50 mm, respectively, so-called distribution board agreement dimensions (standard of distribution board internal unit) The dimensions are defined in the JIS standard) and can be stored in a distribution board used for storing a breaker. Further, as shown in FIG. 3, a groove 11a is formed on the lower surface of the first case 11 to allow wiring such as lead wires to pass between the remote control breakers arranged side by side.

  The input / output terminal unit 12 includes an input terminal 121 and an output terminal 122 provided in front of the input terminal 121.

  The input terminal 121 includes a plurality of fast connection terminals 121a arranged in parallel in the vertical direction, and a programmable controller (hereinafter referred to as “distribution controller”) provided inside and outside the distribution board via a lead wire (not shown) connected to the fast connection terminal 121a. It is electrically connected to an external device such as a PLC or a server.

  The output terminal 122 includes a plurality of quick connection terminals 122a arranged in the vertical direction, and a remote control breaker disposed in the distribution board via a lead wire (not shown) connected to the fast connection terminal 122a. It is electrically connected to electrical equipment such as.

  As shown in FIG. 4, the signal processing unit 13 is composed of a circuit board in which a power supply circuit 13a and a signal processing circuit 13b are incorporated, and two signal processing boards electrically connected by connection means such as a lead wire (not shown). 13A and 13B.

  The signal processing circuit board 13A has an input terminal 121 mounted on the right end of the front surface, and the signal processing circuit board 13B is disposed in front of the signal processing circuit board 13A substantially in parallel with the signal processing circuit board 13A and has the right end of the front surface. The output terminal 122 is mounted on.

  Then, the power supply circuit 13a converts the power supply voltage obtained via the input terminal 121 into a predetermined voltage and outputs it to the signal processing circuit 13b.

  In addition, the signal processing circuit 13b generates a control signal based on a signal from an external device received via the input terminal 121, and outputs the control signal via the output terminal 122 to an electric circuit such as a remote control breaker in the distribution board. The electrical device is controlled by outputting to the device.

  As shown in FIG. 5, the first connector 14 includes a substantially rectangular box-shaped housing 14 a having an open front surface and a plurality of contacts 14 b arranged at equal intervals in the vertical direction within the housing 14 a. Here, the housing 14a of the first connector 14 is formed with notches 141 at both upper and lower ends of the right side surface.

  The first connector 14 is mounted on the front surface of the signal processing circuit board 13B and is electrically connected to the signal processing unit 13, and the first connector 14 is formed by an opening (not shown) formed on the front surface of the first case 11. The case 11 is exposed from the front surface. At this time, the first connector 14 is provided at a position shifted leftward from the center of the front surface of the first case 11.

  The second case 21 of the subunit 2 is formed in a substantially rectangular box shape, and the two second connectors 21 protrude from openings (not shown) formed in the lower surface with the operation display substrate 22 housed therein.

  The second connector 21 includes a substantially rectangular box-shaped housing 21a having an open rear surface, and a plurality of posts 21b arranged at equal intervals in the vertical direction within the housing 21a.

  The two second connectors 21 are mounted on the rear surface of the operation display board 22 and are shifted to the left from the center of the second case 23 and to the right from the center of the second case 23. Projecting from each position.

  Hereinafter, of the two second connectors 21, a connector protruding from a position shifted leftward from the center of the second case 23 is referred to as a second connector 21 </ b> A, and the center of the second case 23 is The connector protruding from the position shifted to the right from the second connector 21B is referred to as a second connector 21B. Here, the first connector 21A and the second connector 21B are formed point-symmetrically with respect to the center of the lower surface of the second case 23. Further, when the second connectors 21A and 21B are not distinguished, they are referred to as the second connector 21.

  In addition, the second connector 21A has protrusions 211 at the upper and lower ends of the right side surface of the housing 21b, and the second connector 21B has the protrusions 211 at the upper and lower ends of the left side surface of the housing 21b. The

  The second connector 21 </ b> A is inserted into the first connector 14 when the second case 23 is placed on the front surface of the first case 11, and each contact 14 a of the first connector 14. The posts 21 of the second connector 21 are brought into contact with each other and are electrically connected, and the protrusion 21a of the second connector 21 is fitted into the notch 14a of the first connector 14, so that the first connector 14 And the second connector 21A are electrically and mechanically connected.

  The operation display board 22 is housed in the second case 23 and, as shown in FIG. 5, the switch element SW1 that starts operation of the control unit when pressed, and the operation of the control unit when pressed. A switch element SW2 to be stopped, a slide switch SW3 that switches the operation mode during operation of the control unit to automatic, manual, or OFF, an LED element 221a that is lit when the control unit is operated, and an LED element 221b that is lit when the control unit is stopped, In addition, a failure display unit 221c that informs the user of an abnormality by displaying a failure character only when a failure occurs is mounted on the front surface.

  The operation display surface 24 is formed on the front surface of the second case 23, and displays the operation state of the control unit by a display signal received from the signal processing unit 13 via the first and second connectors 14 and 21. A unit 241 and an operation unit 242 for transmitting an operation signal from the operation display board 22 to the signal processing unit 13 when operated by a user.

  In the display unit 241, windows 241a, 241b, and 241c are formed at positions facing the LED elements 221a and 221b and the display unit 221c of the operation display board 22, respectively.

  An operation display sheet 25 on which predetermined characters are printed is attached to the front surface of the second case 23 on which the operation display unit 24 is formed. And since the location corresponding to the window parts 241a, 241b, 241c is formed transparently in the operation display sheet 25, the window parts 241a, 241b, 242c can be confirmed from the outside of the second case 23. Further, on the operation display sheet 25, characters of operation and stop are printed in the vicinity of portions corresponding to the window portions 241a and 241b.

  The operation unit 242 is slid by a button 242a that turns on the contact of the switch SW1 of the operation display board 22 when pressed and a button 242b that turns on the contact of the switch SW2 of the operation display board 22 when pressed. Thus, a slide knob 242c that operates the slide switch SW3 of the operation display board 22 in conjunction with each other is provided.

  Further, the operation display sheet 25 has ON and OFF characters printed at locations corresponding to the buttons 242a and 242b, and the slide knob 242c can be slid in the left-right direction at locations corresponding to the slide knob 242c. An opening 25a is formed. Here, the operation display sheet 25 is set to such a thickness that the buttons 242a and 242b can be pressed from the outside via the operation display sheet 25.

  As shown in FIG. 6, the control unit of the present embodiment configured as described above is disposed on the right side of the conductive bar 312 that is plug-in connected to the remote control breaker 311 in the distribution board 31. Therefore, this control unit is opposed to the conductive bar 311 with one end of the first case 11 having the input / output terminal portion 12 facing rightward and the other end of the first case 11 facing leftward. Arranged. In FIG. 6, components other than the remote control breaker 311, the conductive bar 312, and the control unit are omitted.

  Therefore, in this control unit, the lead wire connected to the input / output terminal portion 12 is connected from the right direction of the first case 11 opposite to the direction in which the conductive bar 311 is disposed. It is possible to easily connect the wire to the input / output terminal portion 12, and it is possible to prevent the signal transmitted through the lead wire from being affected by noise and malfunctioning of the electric device.

  When moving this control unit from the right side of the conductive bar 312 to the left side of the conductive bar 312 (position indicated by the broken line in FIG. 6), first, the second connector 21A is pulled out from the first connector 14, The subunit 2 is separated from the main unit 1.

  Next, the main unit 1 is rotated 180 degrees so that one end of the first case 11 provided with the input / output terminal portion 12 changes from the state facing rightward to the state facing leftward.

  Subsequently, the rotated main unit 1 is disposed on the left side of the conductive bar 312 and the subunit 2 is attached to the main unit 1 again. Here, when the subunit 2 is attached to the main unit 1 again, the subunit 2 is disposed opposite to the main unit 1 so that the rotation axis X of the main unit 1 passes through the center of the lower surface of the second case 23.

  Then, since the two second connectors 21A and 21B are formed point-symmetrically with respect to the center of the lower surface of the second case 23, the first connector 14 faces the second connector 21B.

  Subsequently, by inserting the second connector 21B into the first connector 14 without changing the installation direction of the subunit 2 with respect to the distribution board, the contacts 14b of the first connector 14 and the second connector 21B are inserted. The post 21b is electrically connected, and the protrusion 211 of the second connector 21B is fitted into the notch 141 of the first connector 14, so that the first connector 14 and the second connector 21B are electrically and mechanically connected. Connected.

  Therefore, as shown in FIG. 7, the control unit after the movement is rotated 180 degrees in the installation direction of the first case 11, and the input / output terminal portion 12 is provided at the left end of the first case 11. The right end of one case 11 faces the conductive bar 312. Therefore, since the lead wire connected to the input / output terminal portion 12 is connected from the left direction of the first case 11 opposite to the direction in which the conductive bar 312 is disposed, the lead wire is input / output. While being able to connect easily to the terminal part 12, it can prevent that the signal which transmits a lead wire receives the influence of noise, and an electrical device malfunctions.

  Further, the subunit 2 can be connected to the main unit 1 whose installation direction has been rotated 180 degrees without changing the installation direction with respect to the distribution board, and the characters displayed on the operation display surface 24 are inverted. In addition, since the operation direction of the operation unit 242 and the arrangement of the operation unit 242 and the display unit 241 can be prevented from being turned upside down, the arrangement in the distribution board can be given a degree of freedom. .

  Therefore, the control unit according to the present embodiment prevents the lead wire connected to the input / output terminal portion 12 from approaching the conductive bar even when the installation direction is rotated 180 degrees. Can be easily connected, and the signal transmitted through the lead wire can be prevented from malfunctioning due to the influence of noise. Further, since the installation direction of the subunit 2 with respect to the distribution board does not change, the operation display surface 24 is not turned upside down, and the arrangement in the distribution board can be given a degree of freedom.

  Further, since the connectors having a plurality of contacts 14b and posts 21b are used as the first and second connectors 14 and 21, there is no need to provide a connector for each signal line, and the main unit 1 and the subunit 2 It is possible to simplify the circuit configuration for transmitting and receiving signals between the two.

  In this embodiment, the subunit 2 is provided with two second connectors 21A and 21B, but the subunit 2 is provided with only one of the second connectors 21A and 21B, and the main unit 1 Two first connectors 14 may be formed symmetrically with respect to the rotation axis X. In this case, the two first connectors 14 are arranged such that the posts 14a are point-symmetric with respect to the rotation axis X.

DESCRIPTION OF SYMBOLS 1 Main unit 2 Sub unit 11 1st case 12 Input / output terminal part 13 Signal processing part 14 1st connector 21 2nd connector 22 Operation display board | substrate 23 2nd case 24 Operation display surface 121 Input terminal 122 Output terminal 241 Display unit 242 Operation unit

Claims (3)

In the control unit that controls the electrical equipment arranged in the distribution board,
Control based on a hollow box-type case, an input terminal provided at one end of the case, an output terminal provided at one end of the case and electrically connected to an electrical device, and an input signal received via the input terminal A main unit including a signal processing unit that generates a signal and outputs the control signal to an electrical device via an output terminal, and a first connector that is provided on the case surface and is electrically connected to the signal processing unit When,
A second connector that is detachably attached to the first connector and is electrically and mechanically connected to the first connector, and a display signal received from the signal processing unit via the first and second connectors A subunit configured of an operation display surface provided with at least one of a display unit to be displayed and an operation unit for performing an operation for transmitting an operation signal to the signal processing unit;
The first and second connectors are either a case where one end of the case provided with the input terminal and the output terminal faces one direction or the other direction opposite to the one direction. The control unit is provided in a shape and a position that can be connected to each other without changing the installation direction of the subunits relative to the distribution board.   Each of the first and second connectors includes a plurality of electrode pieces, and the first and second connectors are electrically connected to each other through electrical connection between the electrode pieces of the first and second connectors. Two first connectors are formed point-symmetrically with respect to the rotation center of the main unit when rotating one end of the case from one direction to the other by rotating the main unit, and the two first connectors are 2. The control unit according to claim 1, wherein electrode pieces are arranged symmetrically with respect to the rotation center. Each of the first and second connectors includes a plurality of electrode pieces, and the first and second connectors are electrically connected to each other through electrical connection between the electrode pieces of the first and second connectors. Two second connectors are formed in point symmetry with respect to the rotation axis of the main unit when rotating one end of the case from one direction to the other by rotating the main unit. The two second connectors are 2. The control unit according to claim 1, wherein the electrode pieces are arranged point-symmetrically with respect to the rotation axis.

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