JP2006012928A - Control unit with display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control unit with a display which can perform as an installation type and a display unit discrete type, and which can change a using state if needed. <P>SOLUTION: The control unit with the display having the display 12 for displaying a working state has a structure that can be connected so that a controller 11 having a rail engagement 113 which engages to a rail for installation may be integrated. In the state that the controller 11 and the display unit 12 are dissociated, the controller 11 and the display 12 can be connected by an electric cable 17. The rail engagement 113 is provided in the first surface 111 of the controller portion 11, a connector is provided for cable connection with other control units of the first surface and an opposite side of the second surface 112. As the display unit 12 covers the rail engagement 113, the display 12 is detachably and attachably attached in the first surface 111 of the controller unit 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a control unit with a display unit provided with a display unit for displaying an operation state.

  As an example of this type of control unit with a display unit, there is a displacement measuring device including a display device as described in Patent Document 1. Besides, various sensor devices and control devices such as PLC (Programmable Logic Controller) are used as the control unit with a display unit. Such a control unit with a display unit includes a stationary type in which a controller unit incorporating a control circuit and a display unit are integrated, and a display unit separation type in which the controller unit and the display unit are separated. The stationary type is installed near a production line, for example, and is used in a state where an operator can appropriately visually recognize the display unit.

  On the other hand, in the display unit separation type, for example, a controller unit is attached inside a control box (control panel), a display unit is attached to a door panel of the control box, and both are connected by an electric cable. In addition, a standard mounting rail called a DIN rail is generally used for mounting the controller unit inside the control box. The controller unit is provided with a rail engaging portion that engages with the DIN rail. Usually, a plurality of DIN rail mounting type control units are arranged in a line and fixed to the DIN rail.

The stationary control unit with a display unit is used in any place such as a production line, so there are no particular restrictions on its external dimensions, etc., and it can be freely designed in consideration of user preferences and operability. be able to. On the other hand, in the case of a display unit separation type control unit with a display unit composed of a controller unit mounted on a DIN rail and a display unit mounted on a panel, there are predetermined restrictions on external dimensions and the like according to the standard. For example, each of the width, height, and depth dimensions of the substantially rectangular parallelepiped controller section needs to be one of a plurality of standard dimensions. Of course, it is necessary to design the shape and position of the rail engaging portion according to the standard. The dimensions of the square holes (openings) formed in the panel (plate member) to which the display unit is attached are also defined by the standards. Therefore, it is necessary to design the dimensions of the insertion part on the back surface of the display part inserted into the square hole in accordance with the standard.
Japanese Utility Model Publication No. 4-59411

  As described above, there are many differences in shape and structure between the stationary type and the display unit separation type, and it is difficult to divert one type to the other type. For example, even if the display unit of a stationary control unit with a display unit is removed from the main unit (controller unit), it is difficult to attach the display unit to a panel such as a control box. It is also difficult to attach to. On the contrary, in order to use the display unit and the controller unit of the display unit separation type control unit with a display unit combined with each other and use it as a stationary type, modification work and ingenuity are required. Moreover, it must be a control unit with a display part that looks bad in appearance.

  In view of the above-described conventional problems, the present invention provides a control unit with a display unit that can be used in both a stationary type and a display unit separation type, and the usage mode can be changed as necessary. For the purpose.

  A first configuration of a control unit with a display unit according to the present invention is a controller having a rail engaging unit that engages with a mounting rail in a control unit with a display unit provided with a display unit for displaying an operation state. The display unit and the display unit can be coupled to each other so as to be integrated, and the controller unit and the display unit are separated from each other and can be connected to each other by an electric cable.

  By having such a structure, the control unit with a display unit of the present invention can be used not only as a stationary control unit with a display unit in which the controller unit and the display unit are integrated, but also with the controller unit and the display unit. It can also be used as a separate display unit control unit. In the latter case, for example, the display unit is attached to the door panel of the control box, the controller unit is attached to the mounting rail (DIN rail) installed inside the control box, and both are connected by a predetermined harness (electric cable). It will be.

  According to a second configuration of the control unit with a display unit according to the present invention, in the first configuration described above, a rail engaging portion is provided on the first surface of the controller unit, and the second surface on the opposite side to the first surface A connector for connecting a cable to the control unit is provided, and the display unit is detachably attached to the first surface of the controller unit so as to cover the rail engaging unit.

  According to such a configuration, when used as a stationary control unit with a display unit in which the controller unit and the display unit are integrated, if the display unit of the control unit is the front, the cable can be connected to the back. The connector is located, and the unnecessary rail engaging portion is covered with the display portion. Therefore, it is possible to realize a control unit having an excellent appearance. On the other hand, when used as a display unit separation type control unit, if the rail engaging portion is set to the back and fixed to the mounting rail, the connector is located on the front surface, so the workability of cable connection is improved.

  According to a third configuration of the control unit with a display unit according to the present invention, in the second configuration described above, the display unit has a structure that can be attached to an opening provided in the plate-like member, and the first of the controller unit. The display unit is detachably attached to the first surface of the controller unit by fitting the display unit into a recess provided on the front surface of the decorative frame member attached to the surface.

  According to such a configuration, when used as a display unit separation type control unit, the display unit attached to the plate-like member (for example, the door panel of the control box) is made as small and thin as possible while the stationary display unit. When used as an attached control unit, it is possible to realize a control unit that secures the appearance of the front surface by the decorative frame member.

  The fourth configuration of the control unit with a display unit according to the present invention specifies a more specific configuration of the third configuration, and an opening is formed in the concave portion of the decorative frame member, from the back of the display unit. An insertion portion that protrudes and is inserted into the opening portion is provided in the display portion, and a display portion fixing member that engages with the insertion portion of the display portion and sandwiches the decorative frame member between the back surface of the display portion is further provided. It is characterized by that.

  The fifth configuration of the control unit with a display unit according to the present invention is the front side of the plate-like member when the display unit is attached to the opening provided in the plate-like member in the third or fourth configuration. By engaging the display portion fixing member with the insertion portion of the display portion inserted into the opening from the display portion, the display portion is plate-shaped so that the plate-like member is sandwiched between the back surface of the display portion and the display portion fixing member. When the display unit is fixed to the member and mounted in the recess provided in the decorative frame member, the insertion unit of the display unit is inserted into the opening formed in the recess from the front side of the decorative frame member, By engaging the portion fixing member with the insertion portion, the display portion is fixed to the decorative frame member so that the decorative frame member is sandwiched between the back surface of the display portion and the display portion fixing member, and the decorative frame in which the display portion is fixed The member has a structure to be mounted on the first surface of the controller unit. And it features.

  According to such a configuration, the display unit is fixed to the opening provided in the plate-like member in a form used as a display unit separation type control unit, and the form used as a stationary type control unit with a display unit. Since the method of fixing the display unit to the decorative frame member is similar, the workability is good and easy to understand when the usage forms are mutually changed. In addition, since a single display unit fixing member is used for both usage forms, it is not necessary to prepare or store new members in accordance with changes in the usage form.

  According to a sixth configuration of the control unit with a display unit according to the present invention, in any one of the second to fifth configurations, a display unit connection connector for connecting a cable to the display unit is provided on the second surface of the controller unit. When the display unit is mounted on the first surface of the controller unit, a cable guide unit for fixing an electric cable from the display unit to the display unit connection connector is provided on the bottom surface of the controller unit. To do.

  According to such a configuration, when used as a stationary control unit with a display unit, the electrical cable from the front display unit to the rear display unit connector is wired and fixed along the bottom surface of the controller unit. Therefore, it hides from the part which can be easily seen from the outside, and is preferable in appearance. On the other hand, when used as a display unit separation type control unit, the connector for connecting the display unit is located together with other connectors on the front surface of the controller unit whose rear surface is fixed to the mounting rail, so that the workability of cable connection is good.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing an external appearance of a control unit with a display unit according to an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which the controller unit and the display unit of the control unit with a display unit according to the embodiment of the present invention are separated. The control unit is configured such that a controller unit (also referred to as an amplifier unit) 11 and a display unit 12 are detachable. Accordingly, it is possible to cope with both a usage type as a stationary type in which the controller unit 11 and the display unit 12 are integrated and a usage type as a display unit separation type in which the controller unit 11 and the display unit 12 are separated. it can.

  FIG. 1 shows a usage form as a stationary type. As shown in FIG. 2, a plurality of electrical cables (harnesses) 15 for electrical connection with other control units are connected to a connector provided on the back surface (second surface) 112 of the controller unit 11. . A rail engaging portion 113 that is lowered by one step is provided at a substantially central portion of the first surface 111 on the opposite side. The rail engaging portion 113 is used for mounting the controller portion 11 on the DIN rail when the control unit is used as a display portion separation type to be described later. The display unit 12 (the decorative frame member 13 on which is mounted) is attached to the first surface 111 of the controller unit 11 so as to cover the rail engaging unit 113. The decorative frame member 13 to which the display unit 12 is attached can be easily removed from the controller unit 11 by loosening and removing one fixing screw 14 and then shifting it upward.

  In FIG. 1 and FIG. 2, the display unit 12 is drawn with the decorative sheet on the surface peeled off. The upper portion 121 of the display unit 12 is provided with a 7-segment 6-digit display device in two stages and a plurality of indicators (LEDs). The lower portion 122 is provided with push button members constituting six push button switches. In an actual control unit, a decorative sheet covering these indicators and pushbutton members is attached to the surface of the display unit 12. The same applies to other drawings after FIG. In addition, the perspective view of the display part 12 of the state which stuck the decorative sheet 12a is shown in FIG.

  FIG. 3 is an exploded perspective view showing a structure for attaching the display unit 12 to the controller unit 11. The display unit 12 is attached to the first surface 111 of the controller unit 11 via a decorative frame member 13 that is a resin molded product. The decorative frame member 13 is formed so that the back surface thereof completely covers the first surface 111 of the controller unit 11, and four upper, lower, left, and right side surfaces are continuous from the upper, lower, left, and right side surfaces of the controller unit 11. In addition, a concave portion (a part lowered by one step) 131 in which the display unit 12 is accommodated is provided at a substantially central portion of the front surface of the decorative frame member 13. In a state where the display unit 12, the decorative frame member 13, and the controller unit 11 are integrally coupled, their surfaces are substantially flush.

  A rectangular opening 132 is formed in the recess 131 of the decorative frame member 13, and an insertion part 123 to be inserted into the opening 132 is provided on the back surface of the display unit 12. The insertion portion 123 is provided so as to protrude rearward from the back surface of the display portion 12, and when the display portion 12 is fitted into the concave portion 131 of the decorative frame member 13, the insertion portion 123 is inserted into the opening portion 132 of the decorative frame member 13. It is inserted, and the rear end portion of the insertion portion 123 is exposed inside the decorative frame member 13. A display portion fixing member 16, which is a frame-shaped resin molded product that engages with the rear end portion of the insertion portion 123, is provided, and the decorative frame member 13 is sandwiched between the back surface of the display portion 12 and the display portion fixing member 16. In this way, the display unit 12 is fixed to the decorative frame member 13.

  FIG. 4 is a cross-sectional view of the decorative frame member 13 to which the display unit 12 and the display unit fixing member 16 are attached. In the example of this figure, the surface side part of the display part 12 and the insertion part 123 which protrudes from the back surface are comprised with an individual resin molded product, and both are couple | bonded together. Of course, you may produce the display part 12 containing the insertion part 123 as an integral resin molded product. As can be seen from FIG. 3, the display unit fixing member 16 is attached so as to be fitted onto the outer peripheral surface of the rear end portion of the insertion unit 123. A pair of small engagement protrusions 161 are provided on the upper and lower inner surfaces of the display unit fixing member 16. An engaging portion 124 having a sawtooth cross section that engages with the engaging protrusion 161 is provided on the upper and lower outer surfaces of the insertion portion 123.

  By fitting the display portion fixing member 16 on the outer peripheral surface of the rear end portion of the insertion portion 123 that protrudes from the back surface of the display portion 12 fitted in the recess 131 of the decorative frame member 13 and is exposed inside the back surface side of the decorative frame member 13. As shown in FIG. 4, the decorative frame member 13 (the peripheral portion of the opening 132 thereof) is sandwiched between the back surface of the display unit 12 and the display unit fixing member 16. In this way, the display unit 12 is fixed to the decorative frame member 13. In FIG. 4, reference numeral 17 denotes an electrical cable for electrical connection between the display unit 12 and the controller unit 11.

  FIG. 5 is a perspective view seen from the back side of the decorative frame member 13 to which the display unit 12 and the display unit fixing member 16 are attached. In FIG. 5, the front end portion of the fixing screw 14 inserted from the front side is visible at the lower left side of the back side of the decorative frame member 13. In addition, engagement claws 133 are formed at a total of three locations, two on the left and right on the upper part of the back side of the decorative frame member 13 and on the lower right. As can be seen from FIG. 4, these engaging claws 133 protrude from the back surface of the decorative frame member 13 and extend so as to bend substantially downward.

  On the other hand, as shown in FIGS. 2 and 3, on the first surface 111 of the controller unit 11, engagement receiving portions 114 that engage with the engagement claws 133 of the decorative frame member 13 are provided at three corresponding positions. Yes. The decorative frame member 13 to which the display unit 12 is attached engages three engagement claws 133 provided on the back surface thereof with three engagement receiving portions 114 provided on the first surface 111 of the controller unit 11. By doing so, it is fixed to the first surface 111 of the controller unit 11. At this time, with the decorative frame member 13 slightly shifted upward, the back surface of the decorative frame member 13 is pressed against the first surface 111 of the controller unit 11, the three engaging claws 133 and the three engagement receiving portions 114. If the decorative frame member 13 is slightly shifted downward after the alignment, the three engagement claws 133 and the three engagement receiving portions 114 are firmly engaged, and the display portion 12 is attached. The decorated frame member 13 and the controller unit 11 are integrated as shown in FIG.

  After that, if the fixing screw 14 is screwed into the screw hole 115 provided in the first surface 111 of the controller unit 11 from the screw insertion hole 134 of the decorative frame member 13, the decorative frame member 13 is displaced upward from the controller unit 11. It is prevented from coming off. In order to remove the decorative frame member 13 from the controller unit 11, the fixing screw 14 is first loosened and removed, and then the decorative frame member 13 is moved forward while being slightly shifted upward.

  FIG. 6 is a perspective view of the control unit with a display unit in FIG. 1 as viewed from the back and the bottom. As can be seen from FIG. 2 and FIG. 2, the electric cable 17 whose proximal end is connected to the display unit 12 is guided to the back surface (second surface) 112 along the bottom surface of the controller unit 11, and The display unit connection connector 171 provided on the surface 112 is connected. In other words, the display unit connection connector 171 is provided on the second surface 112 of the controller unit 11 together with the connection connector for the other electric cable 15. A cable guide 116 for fixing the electric cable 17 from the display unit 12 is provided on the bottom surface of the controller unit 11.

  The cable guide part 116 can be integrally formed on the bottom surface of the outer case of the controller part 11 that is a resin molded product, but the cable guide part 116 produced separately is fitted to the bottom face of the controller part 11 with screws, You may fix by means, such as adhesion | attachment. As shown in FIG. 1, when used as a stationary control unit with a display unit, an electrical cable 17 extending from the front display unit 12 to the rear display unit connection connector 171 is wired along the bottom surface of the controller unit 11. Therefore, it is hidden from the portion that can be easily seen from the outside, and is preferable in appearance.

  FIG. 7 is a perspective view showing a state where the control unit with a display unit of the present embodiment is used as a display unit separation type. In this usage pattern, the first surface 111 of the controller unit 11 is the back surface, and the controller unit 11 is fixed to the DIN rail 19. At this time, the rail engaging portion 113 of the first surface 111 shown in FIGS. 2 and 3 is fixed so as to engage with the DIN rail 19. As a result, the second surface 112 provided with a plurality of connectors 151 to which electrical cables for connection with other control units or the like are connected becomes the front side, and the workability of cable connection is improved.

  In this display unit separation type usage, the display unit 12 is directly attached to a plate-like member 21 such as a door panel of a control box (control panel). In this case, the decorative frame member 13 used in the usage form as a stationary type is unnecessary, but the display unit fixing member 16 can be used as it is. That is, in the relationship between the display unit 12, the decorative frame member 13, and the display unit fixing member 16 in the exploded view shown in FIG. 3, it may be considered that there is a plate-like member 21 instead of the decorative frame member 13. The plate-like member 21 is formed with a rectangular opening having the same shape and the same size as the opening 132 of the decorative frame member 13. The shape and dimensions of the opening are determined by the standards as described in the background art description.

  By attaching the insertion part 123 of the display unit 12 to the opening from the front side of the plate-like member 21 and fitting the display unit fixing member 16 to the insertion part 123 from the back side of the plate-like member 21. The plate-like member 21 (the peripheral portion of the opening) is sandwiched between the back surface of the display unit 12 and the display unit fixing member 16. In this way, the display unit 12 is fixed to the plate member 21. That is, the display unit 12 is also used in the display unit separation type using the same operation as the case where the display unit 12 is fixed to the decorative frame member 13 in the usage form as a stationary type and using the same display unit fixing member 16. Can be fixed to the plate-like member 21. Thereafter, the connector on the distal end side of the electrical cable 17 for electrical connection between the display unit 12 and the controller unit 11 may be connected to the display unit connection connector 171 provided on the second surface 112 of the controller unit 11.

  As mentioned above, although the Example of this invention was described, this invention is not restricted to said Example, It can implement with a various form. The specific shapes and structures shown can be changed as necessary.

It is a perspective view which shows the external appearance of the control unit with a display part which concerns on the Example of this invention. It is a perspective view which shows the state which isolate | separated the controller part and display part of the control unit with a display part which concerns on the Example of this invention. It is a disassembled perspective view which shows the attachment structure of the display part with respect to a controller part. It is sectional drawing of the decorative frame member with which the display part and the display part fixing member were mounted | worn. It is the perspective view seen from the back side of the makeup | decoration frame member with which the display part and the display part fixing member were mounted | worn. It is the perspective view which looked at the control unit with a display part of Drawing 1 from the back and the bottom. It is a perspective view which shows a mode that the control unit with a display part of a present Example is used as a display part separation type. It is a perspective view of the display part of the state which stuck the decorative sheet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Controller part 12 Display part 13 Cosmetic frame member 16 Display part fixing member 17 Electric cable 19 Mounting rail (DIN rail)
21 Plate-shaped member 111 1st surface 112 2nd surface 113 Rail engaging part 116 Cable guide part 131 Recessed part 132 Opening part 171 Connector for display part connection

Claims (6)

A control unit with a display unit provided with a display unit for displaying an operation state,
An electric cable in which the controller unit having the rail engaging portion that engages with the mounting rail and the display unit can be coupled to each other so as to be integrated, and the controller unit and the display unit are separated. A control unit with a display unit, characterized by having a structure connectable to each other. The rail engaging portion is provided on the first surface of the controller portion, the connector for connecting a cable with another control unit is provided on the second surface opposite to the first surface, and the display portion is The control unit with a display unit according to claim 1, wherein the control unit is attached to the first surface of the controller unit so as to cover the rail engaging unit. The display unit has a structure that can be attached to an opening provided in a plate-like member, and the display unit is fitted into a recess provided in a decorative frame member attached to the first surface of the controller unit. The control unit with a display unit according to claim 2, wherein the display unit is detachable from the first surface of the controller unit. An opening is formed in the concave portion of the decorative frame member, an insertion portion that protrudes from the back surface of the display portion and is inserted into the opening portion is provided in the display portion, and engages with the insertion portion of the display portion to display the display The display unit-equipped control unit according to claim 3, further comprising a display unit fixing member that sandwiches the decorative frame member between the rear surface of the unit. When the display unit is attached to the opening provided in the plate-like member, the display unit fixing member is engaged with the insertion portion of the display unit inserted into the opening from the front side of the plate-like member. By combining, the display unit is fixed to the plate member so as to sandwich the plate member between the back surface of the display unit and the display unit fixing member,
When the display unit is attached to a recess provided in the decorative frame member, an insertion unit of the display unit is inserted into an opening formed in the recess from the front side of the decorative frame member, and the display unit By engaging the fixing member with the insertion portion, the display portion is fixed to the decorative frame member so as to sandwich the decorative frame member between the back surface of the display portion and the display portion fixing member, and the display portion 5. The control unit with a display unit according to claim 3, wherein the decorative frame member to which the frame is fixed is attached to the first surface of the controller unit. A connector for connecting a display unit for cable connection with the display unit is provided on the second surface of the controller unit, and when the display unit is mounted on the first surface of the controller unit, the display unit The control unit with a display unit according to any one of claims 2 to 5, wherein a cable guide unit for fixing an electric cable reaching the connector for connecting the display unit is provided on a bottom surface of the controller unit.

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