JPH09321460A - Control unit mounting structure - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To increase the storage efficiency of a control panel by reducing the mounting area of a control unit. SOLUTION: In the mounting structure of the control unit 1 mounted on the mounting base 21 provided inside the control panel 2, the control unit 1 has the same horizontal pitch near both longitudinal ends of the back surface. A plurality of screw holes 14 are provided, the horizontal pitch of which is the same as that of the screw holes, and the vertical pitch of which is a predetermined pitch.
Mounting plates 4 provided with a plurality of countersunk holes 41a and 41b in rows are provided at both ends of the control unit 1, and the mounting plate 4 is controlled by one countersunk hole 41b in one row and countersunk screws 5 screwed into the screw holes 14. It is fixed to both ends of the rear surface 13 of the unit 1, and the other one row of countersink holes 41a is projected from both ends of the control unit 1 in the vertical direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control unit accommodating electronic equipment and the like, and more particularly to a structure for mounting the control unit on a control panel.

[0002]

2. Description of the Related Art Conventionally, a mounting structure of a box-shaped control unit to a control panel is as shown in FIG.
A flange 11 is fixed to both sides of the control unit 1 by screwing or welding, and the flange 11 is provided with a plurality of mounting holes 12. The mounting base 21 for the control panel 2
The mounting base 21 is provided with screw holes 22 at the same pitch as the mounting holes 12. When mounting the control unit 1 in the control panel 2, the control unit 1 is arranged at a predetermined position of the mounting base 21, and the screw 3 is inserted from the mounting hole 12 into the screw hole 22 and tightened, and the flange 11
At the same time, the control unit 1 is fixed to the mounting base 21. When arranging a plurality of control units 1 side by side, as shown in FIG. 5, the flanges 11 of the adjacent control units 1 are abutted and arranged, and the control units 1 are fixed to the mounting base 21 by screws 3, respectively.

[0003]

However, in the above-mentioned prior art, the length H _{1 in the} vertical direction occupied by one control unit 1 is large.
Is greater than the net vertical length H ₂ of the box-shaped control unit 1 excluding the flange 11. When arranging a plurality of control units of the control units side by side, the flanges 11 have to be arranged in abutment with each other. Therefore, only the vertical length H _{3 corresponding} to the width of the flanges 11 between the adjacent control units 1 is matched. There is a problem that it becomes a useless space, the storage efficiency of the control panel 2 is reduced, and that dust is easily collected in the space formed by the adjacent flange 11. An object of the present invention is to reduce the mounting area of the control unit and improve the storage efficiency of the control panel.

[0004]

In order to solve the above-mentioned problems, the present invention relates to a mounting structure of a control unit mounted on a mounting base provided inside a control panel, wherein a vertical direction of a rear surface of the control unit is provided. A plurality of screw holes are provided in the vicinity of both ends so that the horizontal pitch is the same, and two rows of fixing holes having the same horizontal pitch as the screw holes and a predetermined vertical pitch are provided. And a mounting plate provided at each end of the rear surface of the control unit, and the mounting plate is screwed into the fixing hole of one of the two rows and the screw hole provided in the control unit. The fixing hole is fixed by a screw, and the fixing hole of the other one row of the two rows protrudes vertically from both ends of the control unit. The mounting base provided on the control panel has a horizontal pitch equal to that of the screw holes, and a vertical pitch of the fixing holes provided on the mounting plate at a portion protruding from both sides of the control unit. A mounting hole is provided at the same position as the direction pitch. In addition, the adjacent control units are each provided with a screw hole provided at an end portion facing each other and one provided with the mounting plate.
It is fixedly connected to the common mounting plate by a fixing screw screwed into the fixing hole of the row. The fixing holes and fixing screws are countersunk holes and countersunk screws, respectively. Further, the fixing hole and the fixing screw are composed of a sink hole and a head bolt, respectively.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged (a) side view and (b) a rear side front view of an essential part. In the figure, 1 is a box-shaped control unit that houses electronic devices and the like, has a length H in the vertical direction, and has a horizontal pitch P ₁ on the rear surface 13, a vertical pitch P ₂ , and screw holes 14 at the four corners. It is provided. 2 is a control panel for housing the control unit 1, 21 is a mounting base for mounting the control unit 1, 22 is a mounting hole provided in the mounting base 21, and the horizontal pitch P ₁ is the same as the pitch of the screw holes 14 Directional pitch P ₃ is control unit 1
The size is larger than the vertical size of the. 4A,
4B is a mounting plate having a length D in the vertical direction, and has the same horizontal pitch P as the screw holes 14 provided on the back surface of the control unit 1.
_1. Two holes are provided in the horizontal direction with a vertical pitch P ₄ of (P ₃ −P ₂ ) / 2, and countersink holes 41 a and 41 b are provided as fixing holes arranged in two rows in the vertical direction.

With this configuration, when the control unit 1 is attached to the control panel 2, the rear surface 13 of the control unit 1
The mounting plates 4A and 4B are applied to both ends of the mounting plate 4A so that they half protrude, and one of the countersunk holes 41b of the one mounting plate 4A and one of the countersink holes 41a of the other mounting plate 4B are screwed into the screw holes 14. A flat head screw 5 is screwed in as a fixing screw, and the two mounting plates 4A, 4
Fix B to back surface 13. Therefore, the control unit 1
The other one of the mounting plates 4A attached to one end
The countersink 41a of the row and the countersink 41b of the other one row of the mounting plate 4B attached to the other end are in a state of protruding from the control unit 1. Next, the mounting plate 4
The control unit 1 to which A and 4B are attached is applied to the attachment base 21 in the control panel 2, and the screw 3 is attached to the attachment hole 2 from the countersink holes 41b and 41a protruding from the control unit 1.
2, and the two mounting plates 4A and 4B are fixed to the mounting base 21.

A plurality of control units 1 (1a, 1b, 1
When arranging c, 1d) side by side, as shown in FIG. 3, first, the mounting plates 4A, 4B are fixed to both ends of the first control unit 1a as described above. The control unit 1b mounted adjacent to the control unit 1a is in close contact with the control unit 1a at the side surfaces facing each other, and one end of the back surface 13 thereof is applied to the protruding portion of the mounting plate 4B fixed to the control unit 1a, The countersunk screw 5 is screwed into the screw hole 14 from the countersink hole 41b and fixed. That is, the mounting plates 4B at the boundary between the adjacent control units 1a and 1b are shared with each other. A mounting plate 4B common to the adjacent control unit 1c is fixed to the other end of the rear surface 13 of the control unit 1b.
In this way, by sequentially connecting the opposite ends of the adjacent control units 1 by the common mounting plate 4B, a plurality (n) of control units 1 can be connected.
A control unit 1 group in which a to 1d are connected is configured. After that, the first control unit 1a of the control unit 1 group is provided in the countersink hole 41a of the mounting plate 4A and the countersink hole 41b of the mounting plate 4B of the last control unit 1d and the mounting base 21 of the control panel 2. The control unit 1 group is fixed to the mounting base 21 by inserting the screw 3 into the mounting hole 22. The entire length of the control unit 1 group thus attached is the sum of the length H of the control unit 1 in the vertical direction and the length D of the mounting plate 4 in the vertical direction. Control unit 1
Since there is no wasted space between them, the storage efficiency of the control panel 2 is improved. In addition, in the above-described embodiment, an example in which the countersink hole 41 is provided as the fixing hole in the mounting plate 4 has been described, but a sink hole is provided instead of the countersink hole, and a head that is buried in the sink hole instead of the countersunk screw 5 is used as the fixing screw. Attached bolts may be used. Further, in the above-described embodiment, the example in which the control units are arranged side by side in the vertical direction and mounted in the control panel has been described, but the mounting plates are attached to the end portions in the horizontal direction and the plurality of units are arranged in the horizontal direction. It may be attached.

[0008]

As described above, according to the present invention, the mounting plate is fixed to the rear surface of the control unit, and the control unit is mounted on the mounting base of the control panel via the mounting plate. Therefore, when a plurality of control units are mounted side by side, the ends of the adjacent control units can be fixed to one mounting plate so that they are in close contact with each other, so that there is no wasted space between adjacent control units, and control The storage efficiency of the board is improved. In addition, since there is no space between adjacent control units, dust does not collect, maintenance work is facilitated, control panel storage efficiency is improved, and a control unit that achieves downsizing of the control panel can be provided. is there.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is an enlarged (a) side sectional view showing a main part of an embodiment of the present invention, and (b) a front view of a rear surface.

FIG. 3 is a side sectional view showing an embodiment in which a plurality of control units of the present invention are attached.

FIG. 4 is a side sectional view showing a conventional example.

FIG. 5 is a side sectional view showing a state in which a plurality of control units of a conventional example are attached.

[Explanation of symbols]

1 (1a, 1b, 1c, 1d): control unit, 13:
Rear surface, 14: screw holes, 2: control panel, 21: mounting base, 22: mounting hole, 3: screw, 4 (4A, 4B):
Mounting plate, 41a, 41b: Countersink hole, 5: Countersunk screw

Claims (5)

[Claims] 1. A mounting structure of a control unit mounted on a mounting base provided inside a control panel, wherein a plurality of horizontal pitches are provided in the vicinity of both longitudinal ends of a rear surface of the control unit. A mounting plate having screw holes and a plurality of fixing holes in two rows having a horizontal pitch equal to that of the screw holes and a vertical pitch of a predetermined pitch is provided at both ends of the rear surface of the control unit. The mounting plate is fixed by a fixing screw screwed into the fixing hole of one of the two rows and the screw hole provided in the control unit, and the other one row of the two rows is fixed. The mounting structure for a control unit, wherein the fixing hole is formed so as to protrude in the vertical direction from both ends of the control unit. 2. The mounting base provided on the control panel has a horizontal pitch that is the same as that of the screw holes, and a vertical pitch that is provided on a mounting plate at a portion protruding from both sides of the control unit. The control unit mounting structure according to claim 1, wherein the mounting holes are provided at the same positions as the vertical pitches of the holes. 3. Adjacent control units are fixed to a common mounting plate by fixing screws screwed into screw holes provided at opposite ends and one row of fixing holes provided in each of the mounting plates. The control unit mounting structure according to claim 1 or 2, wherein the control unit mounting structure is connected to each other. 4. The mounting structure for a control unit according to claim 1, wherein the fixing hole and the fixing screw are a countersunk hole and a countersunk screw, respectively. 5. The mounting structure for a control unit according to claim 1, wherein the fixing hole and the fixing screw are a sunk hole and a head bolt, respectively.