JPH05160586A - Electronic apparatus - Google Patents

Abstract

PURPOSE:To facilitate assembling and to cope with an increase in processes of a cable by forming a connecting mechanism as a contraction-shaped cut and erected part formed on the side face of a side plate and of a clamping protrusion formed by bending both ends of a ceiling plate and a bottom plate downward. CONSTITUTION:A guide protrusion 16q of one side plate 16 of a second body is so placed as to be matched to an obliquely cut and erected part 15e of a first body 15, engaged with a bolt 19 with a hexagonal hole inserted into a bolt hole 15f, and clamped fixedly by using a hexagonal rod spanner. Then, a bottom plate 18 is held, a clamping protrusion 18e is engaged with a contraction-shaped cut and erected part 16k under the plate 16 from above, and a guide hole 18g is engaged with a positioning protrusion 16i. Then, the bolt 19 with the hexagonal hole inserted into a hole 18f from outside is engaged with a threaded hole 16m, and clamped fixedly by using the hexagonal rod spanner. Thus, assembling with the first body, an increase in installation of the second body, a disassembling operation at the time of maintenance and inspection are facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device, and more particularly, to an electronic device which is constructed by stacking boxes according to applications and specifications and further covering with an exterior plate for internal protection according to product specifications. Regarding the device.

[0002]

2. Description of the Related Art In recent years, there has been a strong demand for an electronic device that has an extension function, is easy to add and remove, and has good workability. In addition, the degree of contact is not inferior to the integrated type,
A structure that is strong against electrostatic breakdown and easy to assemble has been desired.

In terms of heat dissipation effect, it goes without saying that the larger the opening area, the greater the cooling effect, but such a structure makes it easier for dust and the like to enter the device, and to the electric parts inside the device. Make a short circuit at the electric circuit part or the device itself due to contact, and if a human body without electrical protection touches the electric circuit inside the device, it will affect the human body. I can't.

A method of assembling and adding a conventional electronic device of this type will be described with reference to FIGS. 11 is a perspective view of a conventional electronic device, FIG. 12 is an exploded perspective view for explaining an assembling procedure thereof, and FIGS. 13 and 14 are perspective views for explaining an adding procedure thereof. Hereinafter, the conventional electronic device as described above will be described with reference to the drawings.

In FIG. 11, the box is composed of two side plates 1.
And the top plate 2 and the bottom plate 3 are combined to form a plurality of screws 4
It is composed by combining with. Therefore, the side plate 1 is formed with a bent portion 1b also serving as a reinforcement on the four circumferences of the flat plate portion 1a, and a plurality of additional bolt holes 1c are provided above and below the bent portion 1b.
Behind it, a plurality of screw holes 2c, 3c for having a main substrate 5 described later are provided, and the flat plate portion 1a has upper and lower screw holes 2c, 3c.
A plurality of screw holes 1e and 1f for assembling are provided in the step, respectively, and further screw holes 1g, 1 for mounting the exterior plate.
h, 1i are provided. Also, the top plate 2 and the bottom plate 3
Has a plurality of screw holes 2b and 3b necessary for assembly in connecting portions 2a and 3a, which are formed by bending both ends downward and upward, respectively. The facing guide rails 6 and 7 are fixed. As shown in FIG. 12, the main board 5 is provided with a plurality of screw holes 5a corresponding to the screw holes 2c and 3c at both upper and lower ends thereof, and is mounted from behind by a screw 4, and further, the above-mentioned guide rail 6 and During 7
A printed circuit board 9 on which the connector 8 is mounted is mounted.

The procedure for assembling the box body constructed as described above will be described with reference to FIG. 12. First, using an assembling jig (not shown), the two side plates 1 from both sides of the bottom plate 3 will be described. Then, the screw 4 inserted into the screw hole 1f is fitted into the screw hole 3b and temporarily fixed. Next, while supporting the top plate 2, the screw 4 inserted into the screw hole 1e is fitted into the screw hole 2b of the top plate 2, and the bottom plate 3 is tightened and fixed together with the screw 4 that has been temporarily fixed.

Since the assembly of the box body is completed as described above, the top plate 2
A plurality of screw holes 2c provided in a rear bent portion 2d (not shown) for reinforcement and a rear bent portion 3d for reinforcement of the bottom plate 3
After mounting the main board 5 from the back by using the plurality of screw holes 3c provided in, the printed board 9 is mounted from the front along the guide rails 6 and 7, and the main board 5 (connector The receiving connector on the main board 5 side for 8 is connected to (not shown).

Next, referring to FIG.
This will be described with reference to FIGS. First, as shown in FIG. 13, two electronic devices are stacked, a plurality of hexagon bolts 10 are inserted from above into the bolt holes 1c, nuts 11 are fitted from below and tightened with a spanner 12 to fix them.

Next, as shown in FIG. 14, after mounting the printed circuit boards 9 on both upper and lower electronic devices, the plugs 14 connected to the cables 13 for supplying signals and power are inserted into the predetermined connectors 8. And the cable 13
As shown by an arrow C, the entire surface of the electronic device is passed, or as shown by an arrow D, the electronic device is passed through a space between the bottom plate 3 and the top plate 2 of the stacked electronic devices and is brought out to the rear part of the electronic device.

Next, a conventional mounting method of the exterior plate of the electronic device will be described with reference to FIGS. FIG. 16 is a perspective view when a conventional electronic device is stacked in two stages and an exterior plate is attached, and FIG. 17 is a perspective view for explaining a method of attaching the exterior plate. In FIG. 16, reference numeral 51 denotes a rear exterior plate fixed to the rear surface of the electronic device, 5
Reference numeral 2 is a front exterior plate that protects the front surface of the electronic device, and 53 is a top exterior plate that protects the top surface of the electronic device. From the ventilation side, as shown in FIG. 17, a ventilation hole 52a is provided on the lower surface of the front exterior plate 52, and a ventilation hole 51a is provided on the upper surface of the rear exterior plate 51.

It should be noted that the top surface exterior plate 53 is not normally provided with a ventilation hole because dust and the like are likely to enter.

By adopting this structure, air is taken in from the ventilation holes 52a provided in the front exterior plate 52, and the heated air is discharged from the ventilation holes 51a provided in the rear exterior plate 51 while cooling the inside. You can

Reference numeral 51b is a screw hole provided around the end surface of the rear exterior plate 51, 51c is an opening provided as an outlet of the cable 13, 52b is a screw hole provided around the end surface of the front exterior plate, and 53a is a ceiling. It is a screw hole provided around the end surface of the surface exterior plate 53.

Therefore, when the rear exterior plate 51 is attached, the screw 4 inserted in the screw hole 51b is screwed into the screw hole 1 of the side plate 1.
It is fitted to i and is tightened with the screw 4 to fix it. Further, when the front exterior plate 52 is attached, the screw 4 inserted into the screw hole 52b is fitted into the screw hole 1h of the side plate 1 and is tightened and fixed by the screw 4. Further, when the top surface exterior plate 53 is attached, the screw 4 inserted into the screw hole 53a is fitted into the screw hole 1g of the side plate 1 and is tightened and fixed by the screw 4.

Although not shown in this conventional example, a side exterior plate may be attached in some cases. Even in that case, the fixing method is the same, but bending of the end face of the side plate 1 which is the fixing portion is additionally performed.

[0016]

However, in the above configuration, as shown in FIG. 15, when the number of electronic devices to be stacked increases, the cables 13 become a thick bundle, and even if the cables 13 are taken out backward, they become a bundle. There is a problem in that it is necessary to use an electronic device which is larger than necessary because it requires a minute space. Also, since the cables 13 are densely packed, it becomes an obstacle when removing the printed circuit board 9,
There is also a problem that it takes time to replace the printed circuit board 9 because the internal state is difficult to understand. Further, there is a problem that a space for the bundled cables 13 is required even when the cables are taken out at the rear part, and further, the electronic device needs to be inverted or the worker needs to be moved for the cable treatment.

In addition, a jig for holding the left and right side plates 1 is required at the time of assembly, and two spanners 12 or pliers for supporting the head of the hexagon bolt 10 are required at the time of stacking or disassembling. There is a problem that the workability is poor, and since the surface of the bending portion 1c for reinforcement is not microscopically flat, although it is fixed with the bolt 10 and the nut 11.
There is also a problem that the electrical contact strength is weak, and it is difficult to convey harmful static electricity generated on the printed circuit board 9 to a lower electronic device by contact with a hand. In addition, since the metal components of the electronic device are plated for rust prevention, it is difficult for static electricity to be transmitted, and they remain in the device and adversely affect the printed circuit board 9.

Further, when the device is used as a product rather than merely as an experimental device, it is naturally necessary to consider the design surface and protect the electronic device itself with an exterior plate for the purpose of protecting the inside.

In this case, when the printed circuit board is housed in the device, it is desirable that only the front part of the device can be attached and detached. This is because both sides of the device are usually passed through the power supply line on one side and the control line on the other side (separate lines are for preventing noise on the control line). If it is removed, it is considered that ordinary people may accidentally remove or cut the wire itself, which has a great effect on the device itself.

In terms of heat dissipation effect, it goes without saying that the larger the area of the opening (ventilation hole), the greater the effect from the cooling surface. It goes without saying that the part or the device itself is short-circuited by coming into contact with the electrical part, and particularly in the case of the front part, it is easy to touch the part on the printed circuit board in the device. Therefore, an unnecessary opening cannot be provided.

As the number of stacking stages of the device itself increases, the number of cables accommodated inside the device may increase, and in some cases, the side exterior plate may not be closed.

The present invention solves the above problems.
It is an object of the present invention to provide an electronic device which is easy to assemble and does not discharge static electricity to the outside of the device to destroy electric parts on a printed circuit board, has excellent heat dissipation, and can cope with an increase in the number of processed cables. ..

[0023]

To achieve the above object, the present invention separates an electronic device into a U-shaped integral first body and a second body having a stacking structure, and the first body is It is made of a material that has electrical conductivity and thermal conductivity, and diagonal cuts and ups are provided on both sides of the upper end to guide it when stacking, and an opening through which the cable is inserted by cutting out the center of the side surface and a part of the bottom plate that follows it. And a second main body is provided with two side plates made of a material having electrical conductivity and thermal conductivity,
It consists of a top plate and a bottom plate that can be easily attached and detached and fixed.The above side plates are provided with diagonal cut-and-raised parts on both sides of the upper end that serve as a guide when stacking, and on both sides of the lower end with the above-mentioned diagonal Positioning protrusion that fits in the cut and raised part of L
In addition, the letter-shaped fastening protrusions are also provided with diaphragm-shaped cut-and-raised parts for mounting the top plate and the bottom plate on the upper and lower sides of the central part, and notches for inserting the cables at the upper and lower centers of the above-mentioned diaphragm-shaped cut-and-raised parts. -Shaped openings are formed respectively, and the top plate is provided with fastening protrusions on both left and right ends on both sides, which are fitted from above to the above-mentioned narrowed cut-and-raised parts, and is fitted in the notch of the side plate at the center thereof. Reinforcing folds to be formed respectively, the above bottom plate,
Formed on both sides of the left and right ends are fastening projections that fit into the above-mentioned narrowed cut-up shape from above, and at the center thereof, a reinforcing bent portion that is formed upward so as to closely contact the inner wall surface of the side plate. , And each of them is fastened to form a box. In addition, a screw hole and a bolt hole are provided in the component of the box body at the above connecting portion, and the bolt inserted into the bolt hole is fitted into the above screw hole and tightened to ensure electrical and mechanical connection. With regard to the cable treatment inside the device, the foot of the second body is separated, and by removing the foot according to the application of the cable treatment, the shape of the plug provided at the tip of the cable is large. In addition, by expanding the side surface of the exterior plate, making the upper part of the front exterior plate oblique and forming a ventilation hole in the lower part, it is possible to cope with the increase in the number of cables to be processed. It has a structure in which air can easily enter, and foreign matter is not easily mixed in.

[0024]

The present invention operates as follows with the above construction. In other words, the second main body is assembled by simply fitting the fastening bending portion into the cut-and-raised shape, and the second main body can be easily combined with the first main body, and the second main body can be easily added and disassembled during maintenance and inspection. Become.

Further, when the second main body and the first main body or the second main body are repeatedly stacked, the diaphragm-shaped cut-raised parts and the plating applied to the surface of the fastening projection are peeled off by a bolt. Grounding can be done by tightening it, and static electricity will be released to the outside of the device, so there is no adverse effect on the printed circuit board.

Regarding the cable treatment inside the device,
With the structure that separates the legs of the main unit, and by removing the legs according to the application of cable processing, a space equivalent to the linear size of the cable is secured even if the shape of the plug provided at the tip of the cable is large. You can respond.

Further, since the notch-shaped openings provided in the first body and the second body form a wide opening,
Even if the number of cables to be processed is increased and the number of cables to be processed is increased, it is possible to accommodate a cable that has a large linear shape and is hard to bend at a right angle, and even if the bundle of cables becomes bulky because the side surface of the exterior plate is inflated.

[0028]

The internal structure of an electronic device according to an embodiment of the present invention will be described below.
This will be described with reference to FIGS. 1 to 7.

FIG. 1 is a perspective view of an electronic device according to the present invention, FIGS. 2 and 3 are exploded perspective views of a second body and an enlarged perspective view of an essential part thereof, and FIG. 4 is a fastening portion of the first and second bodies. 6 is an enlarged perspective view showing the state of expansion, and FIG. 6 and FIG. 7 are enlarged perspective views showing main parts.

In FIG. 1, a box body of an electronic device according to the present invention includes a U-shaped first main body 15 for accommodating a power supply and a cable 13 (neither shown), and two side plates 16 facing each other. Top plate 1 having guide rails 6 and 7 formed on surface 1
7 and the bottom plate 18 are assembled into a second main body.

In FIG. 1, the first main body 15 is formed by pressing a conductive and heat conductive metal plate to form left and right side plates 15.
A continuous opening 15c is formed in the center of a and a part of the bottom plate 15b connected to them, and both sides of the two side plates 15a standing in parallel are outwardly bent, and the front and rear sides of the bottom plate 15b are both upwardly bent. A reinforcing member 15d is formed by molding, and an oblique cut-and-raised portion 15e that travels to the outside to serve as a guide at the time of stacking is formed on the upper end portion of the side plate 15a, and a bolt hole 15f for fastening is formed below it.

Also, for mounting the exterior plate (described later),
The reinforcement 15d at the rear of the figure is further bent (1
5g) and the screw hole 15i is provided on it in the left-right direction.

Further, a screw hole 15j for attaching an exterior plate (described later) is provided in the reinforcing member 15d at the center of the front surface.

As shown in FIG. 2, the side plate 16 of the second main body
Is a metal plate having electrical conductivity and thermal conductivity that is press-formed to form outwardly bent reinforcing members 16a at both front and rear ends, and a rear exterior plate 20 (described later) is attached to the rear reinforcing members 16a. A plurality of screw holes 16u (not shown) are provided, and a part of the reinforcing material 16a is bent to be 16v, and a screw hole 16x for fixing a left side or right side exterior plate (described later) is provided thereon. In addition, notch-shaped openings 16c and 16d for inserting the cable 13 (not shown) are formed in the central portions of the upper and lower ends, and the bottoms of the openings 16c and 16d are respectively bent inward to form the upper surfaces of the positioning shelves 16e and 16f. , The former (16e) on which the top plate 17 is mounted,
Two positioning protrusions 16g and two screw holes 16 each
h, the latter (16f) on which the bottom plate 18 is mounted is provided with two positioning protrusions 16i. Further, assembling diaphragm-shaped cut-and-raised parts 16j and 16k for inwardly projecting are formed at both left and right ends so that the upper side is in line with the lower sides of the positioning shelves 16e and 16f.
Screw holes 16l and 16m were provided in the center thereof, respectively. Further, diagonal cut-and-raised portions 16n, which serve as guides at the time of stacking, are formed on the upper end portions on both sides of the notched opening portion 16c.
And a bolt hole 16p for fixing therebelow, a guide projection 16q which is fitted to the diagonal cut-and-raised portion 15e of the first main body 15 at the lower ends on both sides of the lower cut-out opening portion 16d, and which is continuous with this. L-shaped fastening projection 16r and a screw hole 16s at its tip
And were formed respectively. In addition, the front lower member 41 provided below the side plate 16 of the second main body is attached to the side plate 16 of the second main body.
A separate member is provided so as to be separated from the above and can be fixed with a hexagon socket head cap screw 19.

The top plate 17 of the second main body is formed by pressing a metal plate having electrical conductivity and heat conductivity, and has a front end once upward, and a rear end in a katakana "K" shape. Reinforcing materials 17a and 17b bent three times are respectively formed, and a screw hole 17j for mounting an exterior plate on the front reinforcing material 17a (described later) and a main board 5 on the rear reinforcing material 17b.
Is provided with a plurality of screw holes 17c, the left and right ends thereof are respectively bent downward, and a reinforcing bent portion 17d that fits into the notched opening 16c of the side plate 16 is further formed in the central portion. On both sides thereof, a fastening projection 17e that fits into the narrowed cut-and-raised portion 16j of the side plate 16 is formed, and a bolt hole 17f is provided in the center thereof. Further, the positioning protrusion 1 of the side plate 16 is provided inside the reinforcing bent portion 17d.
A guide hole 17g and a bolt hole 17h corresponding to 6g and the screw hole 16h are provided.

The guide rail 6 is provided on the lower surface of the top plate 17.
(Not shown) is formed. In addition, ventilation holes 17i are provided at the rear portion of the top plate 17 at equal pitches at locations where guide rails 7 (not shown) are not attached.

Further, 29 is an upper surface of the top plate 17 (ventilation hole 17
i) and a screw hole 17 provided on the upper surface of the top plate 17 having a bolt hole 29a.
It is fixed to k with a hexagon socket bolt 19 and is bent so that it is oblique when viewed from the side of the shielding plate 29.
The heat generated by a printed circuit board (not shown) housed in the second body is prevented from rising to the upper device (in this case, the second body further stacked on the second body). There is (the movement of heat after that will be described later).

Needless to say, when a plurality of second main bodies are stacked, the shielding plate 29 is fixed to each second main body. Reference numeral 41 denotes a lower front member detachably provided on the lower front surface of the side plate 16 of the second main body, which is the same as the reinforcing member 16a and the screw hole 16y of the side plate 16 of the second main body.
The L-shaped fastening protrusion 41b of the front lower member 41 attached through the above is closely attached to the side plate 16 of the second main body, fitted into the bolt hole 41c of the L-shaped fastening protrusion 41b, and tightened and fixed.

The bottom plate 18 of the second main body is formed by pressing a metal plate having electrical conductivity and thermal conductivity, and reinforcing members 18a and 18b bent three times to form grooves at both front and rear ends, A screw hole 18j for mounting an exterior plate (described later) on the front reinforcing member 18a and a rear reinforcing member 18
a plurality of screw holes 18c for attaching the main board 5 to the b
Further, upward reinforcing bent portions 18d are formed at the central portions of the left and right ends, downward fastening protrusions 18e are formed at both ends thereof, and bolt holes 18f are provided at the central portions thereof. Further, the side plate 1 is provided inside the reinforcing bent portion 18d.
Guide hole 18g fitted to the guide protrusion 16q of 6 and the top plate 1
Similarly to the ventilation hole 17i of No. 7, a ventilation hole 18i and a plurality of guide rails 7 are formed on the upper surface.

The main board 5 of this embodiment is provided with bolt holes 5b at a total of 6 positions at both upper and lower ends and in the center.

As shown in FIG. 5, the reinforcing member 17b at the rear portion of the top plate 17 for fixing the main board 5 is bent in the shape of a "V" so that the contact area is expanded and the fixing strength is improved. When the position of the screw hole 17c is changed due to the design change, the screw hole 17c can be added. Bottom plate 1
Since the same applies to the case of 8, the description thereof will be omitted.

To assemble the above components,
First, in FIG. 4, the diagonal cut-and-raised portion 15 of the first main body 15 is
Place the guide protrusion 16q of the one side plate 16 of the second main body on e, fit the hexagon socket head cap screw 19 inserted into the bolt hole 15f, and tighten using a hexagon bar spanner (not shown). Include and fix. Next, the other side plate 16 is also fixed to the first main body 15 in the same procedure.

Next, referring to FIG. 3, holding the bottom plate 18,
A hexagon socket head cap screw that is inserted into the bolt hole 18f from the outside after fitting the fastening projection 18e from above and fitting the guide hole 18g to the positioning projection 16i in the narrowed cut-and-raised portion 16k below the side plate 16. 19 into the screw hole 16m,
Tighten and fix using a hexagon wrench (not shown).

Next, holding the top plate 17, the drawing-out cut-and-raised portion 16j above the side plate 16 is attached to the fastening projection 17e from above.
The guide hole 17g and the positioning protrusion 16g.
Then, the hexagon socket head cap screw 19 which is inserted into the bolt hole 17h from above and the bolt hole 17f from the outside is fitted into the screw holes 16h and 16l, respectively, and is fitted with a hexagonal spanner (not shown). Tighten and fix.

A method of adding the electronic device configured as described above will be described. First, in order to remove the second main body of the electronic device to be overlaid from the first main body 15, the oblique cut-and-raised parts 15e fixed at the left and right four positions of the first main body 15 shown in FIG.
Remove the hexagon socket head cap screw 19 below. Next, FIG.
As shown in FIG. 6, the guide projections 16g of the side plate 16 of the electronic device to be stacked are put together on the diagonal cut-and-raised portions 16e of the side plate 16 of the electronic device to be stacked, and the hexagon socket head cap bolt 19 is inserted into the bolt hole 16a of the side plate 16. Through the bolt holes 16a of the side plate 16 of the electronic device to be stacked through, the screw is fitted into the screw hole 16s of the L-shaped fastening projection 16r of the side plate to be stacked and fixed by tightening. Next, as shown in FIG. 6, the guide projections 16q of the side plate 16 of the electronic device to be overlapped are placed on the oblique cut-and-raised portions 16e of the side plate 16 of the electronic device to be overlapped, and the hexagon socket head cap bolt 19 can be overlapped on the side plate. 16 bolt holes 1
L-shaped fastening protrusion 16r on the side surface 16 that is overlapped through 6p
It is fitted into the screw hole 16s of and is tightened and fixed.

Next, as shown in FIG. 6, the side plate 16 of the multi-layer electronic device is connected to form a notch-shaped opening portion 16 which is largely opened.
From c and 16d, the plug 14 of the cable 13 passing through the space formed by the bottom plate 18 and the top plate 17 is inserted into the connector 8 of the electronic device to be stacked. The cables 13 connected in this way are collected on both side surfaces of the first main body 15 and taken out of the apparatus. As shown in FIG. 7, the notch-shaped opening 16d of the side plate 16 of the second main body and the opening 15c of the first main body 15 are connected to each other to form an opening, and the front lower member 41 is separated. As long as there is a space for the linear portion of the cable 13, the cable 13 can be easily passed through the device and can be bent inward of the first main body 15, which facilitates processing.

After the cable processing is completed, the side plates 16 of the electronic devices to be stacked are cut and raised in the same manner 1 in the same manner.
The guide protrusion 16g of the side plate 16 of the electronic device to be overlapped is placed on 6e, and the hexagon socket head cap screw 19 is passed through the bolt hole 16a of the side plate 16 to be overlapped. It fits into the screw hole 41s of the L-shaped fastening projection 41r provided at the end of the provided front lower member 41, and is tightened and fixed. Next, as shown in FIG. 6, a guide provided on an end portion of a front lower member 41 provided on a lower portion of the side plate 16 of the electronic device to be overlapped with the oblique cut-and-raised portion 16e of the side plate 16 of the electronic device to be overlapped. Front lower member 4 provided at the bottom of side surface 16 on which projections 41q are placed together and through which bolts 16 with hexagonal holes are stacked through bolt holes 16p of side plate 16
It is fitted into the screw hole 41s of the L-shaped fastening projection 41r provided at the end of No. 1, and is tightened and fixed.

Next, a method of attaching the exterior plate of this embodiment will be described with reference to FIGS. FIG. 8 is a perspective view of the exterior plate of the electronic device according to the present invention attached, and FIG. 9 is a perspective view showing a method of attaching the exterior plate to the first and second main bodies.

In FIG. 8, 20 is a rear exterior plate (not shown) fixed to the rear surface of the first main body 15, and 21 is a left exterior with a U-shaped front portion and a large side surface cut out. Plate, 22 is a right side exterior plate which is symmetrical with the left side exterior plate 21,
Reference numeral 23 denotes a front exterior plate that protects the front surface of the first main body 15 and is formed by bending the periphery of a flat plate into a box. In the figure, there is no surface to be attached to the device. Both are fixed to the first main body 16 with hexagon socket head cap screws 19. Also, 2
Reference numeral 4 denotes a rear exterior plate (not shown) fixed to the rear surface of the second main body, 25 denotes a left side exterior plate having a U-shaped front portion and a side portion swelling outward, and 26 denotes a left side exterior plate. A right side exterior plate that is symmetrical with the plate 25, and 27 is a front exterior that protects the front part of the second main body and is a box bent around the flat plate. There is no surface to be attached to the device in the figure. The plate 42 is a third body for protecting the upper surface of the second body. Further, the upper portions of the front exterior plates 23, 27 are slanted (23c, 27c in the figure), and the left exterior plates 21, 25 are formed.
Front parts (21a, 25a) and right side exterior plates 22, 26 (2
2a, 26a) is provided with a U-shaped bent portion at the front portion thereof, and an expansion portion 25b is formed by expanding the side surface portion of the left side exterior plate 25 to the outside, and an expansion portion is formed by expanding the side surface of the right side exterior plate 22 to the outside. 26 b, and further, an opening 21 b (not shown) in which the side surface of the left side exterior plate 21 is largely cut out is provided,
An opening 22 in which the side surface of the right side exterior plate 22 is largely cut out
b is provided.

Further, notches (23d, 27) for fixing to the apparatus are provided on the front portions of the front exterior plates 23, 27.
A plurality of d) are provided.

In FIG. 9, 27a is a ventilation hole provided in the lower part of the front exterior plate, and 24a is a ventilation hole provided in the upper part of the rear exterior plate. The heat generated in the second main body is transferred to the second main body. It is released from the rear. In addition, the third body 42
By providing a ventilation hole 42a (not shown) on the rear surface of the
Further, the heat dissipation effect is improved.

Further, since the oblique portions (23c, 27c) are provided above the front exterior plates 23, 27, for example, the second exterior
When the second main body is further stacked on the main body, air easily enters the upper main body.

Further, the front portions (21
a, 25a) and right side exterior plates 22, 26 (22a, 26)
By bending the front part of a) in a U-shape, for example, when a power source or the like is housed in the second main body, it is possible to secure a place for processing a cable that supplies a current to the power source, and moreover, a U-shaped portion. Since it is surrounded by, the operator will not accidentally disconnect the cable during maintenance / inspection of the electronic device.

Further, the openings (21b, 25b) notched on the side surfaces of the left side exterior plates 21, 25 and the right side exterior plates 22, 2 are formed.
For example, the second main body is stacked by the expansion parts (22b, 26b) in which the side surface of 6 is expanded, and even if the number of cables to be processed increases, the expansion part can absorb it in the middle of the device, and the opening part at the outlet of the device ( 21b, 25b) can be absorbed, and there is little discomfort in terms of design.

The following are bolt holes provided around the end surface of the exterior plate, 24b is a bolt hole provided in the rear exterior plate 24, 20b is a bolt hole provided in the rear exterior plate 20, and 25c, 25e. Are bolt holes provided in the left side exterior plate 25, 26c and 26e are bolt holes provided in the right side exterior plate 26, 21c and 21e are bolt holes provided in the left side exterior plate 21, and 22c and 22e are The bolt holes 27e provided in the right side exterior plate 22 are provided in the recesses of the cutout portion 27d of the front exterior plate 27, and the bolt holes 23e are provided in the recesses 23d of the front exterior plate 23. It is a bolt hole.

Next, a procedure for fixing the exterior plate to the first main body 15 will be described. When the rear exterior plate 20 is fixed, the hexagon socket head bolt 19 inserted into the bolt hole 20b is fitted into the screw hole 15k (not shown) provided in the rear portion of the first main body 15 to form the hexagon socket head bolt 19 Tighten and fix with. Although the mounting order may be changed, when mounting the left side exterior plate 21, first, the hexagon socket head cap screw 19 inserted into the bolt hole 21e to fix the rear part is attached to the left main body 15 screw hole. Hexagon socket head cap screw 1
Tighten it with 9 to fix it, and fit the hexagon socket head bolt 19 inserted into the bolt hole 21c into the screw hole 15j on the left side of the first main body 15 in the figure, and tighten with the hexagon socket head bolt 19. To fix. Next, when attaching the right side exterior plate 22, first, the hexagon socket head cap screw 19 inserted into the bolt hole 22e for fixing the rear portion is fitted into the screw hole 15i on the right side of the first main body 15 in the drawing, and the hexagon Bolt with hole 19
The hexagon socket head cap screw 19 inserted into the bolt hole 22c (not shown) is fitted into the screw hole 15j on the right side of the first main body 15 in the drawing, and the hexagon socket head cap screw is attached. Tighten with 19 and fix. Finally the front exterior plate 23
In the case of attaching the hexagon socket head cap screw 19 inserted into the bolt hole 23e, the hexagon socket head cap screw 19 is fitted into the screw holes 21d and 22d (not shown) provided in the left side exterior plate 21 and the right side exterior plate 22, respectively. Tighten and fix with.

Next, the procedure for fixing the exterior plate to the second body will be described as in the case of the first body. When fixing the rear exterior plate 24, the hexagon socket head cap screw 19 inserted into the bolt hole 24b is fitted into the screw hole 16z (not shown) provided in the rear portion of the side plate 16 of the second main body, and the hexagon socket head cap screw is attached. Tighten with 19 and fix. Although the mounting order may be changed, when mounting the left-side exterior plate 25, first, the hexagon socket head cap screw 1 inserted into the bolt hole 25e to fix the rear part 1
9 into the screw hole 16x on the left side of the second body in the drawing,
The hexagon socket head bolt 19 is tightened and fixed with a hexagon socket head bolt 19, and the front surface part is fitted with the hexagon socket head bolt 19 inserted through the bolt hole 25c into the screw holes 17j and 18j on the left side of the second body in the drawing,
Tighten and fix with hexagon socket head cap screw 19. Next, when attaching the right side exterior plate 26, first, the hexagon socket head cap screw 19 inserted into the bolt hole 26e to fix the rear part is fitted into the right side screw hole 16x in the drawing of the second main body, and the hexagon socket The hexagon socket head cap screw 19 is tightened and fixed with a bolt 19, and the front portion is inserted into a bolt hole 26c (not shown). The hexagon socket head cap screw 19 is fitted into the screw holes 17j and 18j on the right side in the drawing of the second body, Tighten with the attached bolt 19 to fix. When attaching the front exterior plate 27 at the end, bolt holes 27
The hexagon socket head cap screw 19 inserted through e is fitted into the screw holes 25d and 26d (not shown) provided in the left face exterior plate 25 and the right face exterior plate 26, and is tightened and fixed by the hexagon socket head bolt 19. Normally, it is rare to remove only the left and right exterior plates, and often only the front part or all of them are removed. Therefore, there is no problem in such a mounting structure.

FIG. 10 is an enlarged perspective view of an essential part for explaining the assembling procedure of the third main body (top plate exterior plate in the conventional example). The shape of the third main body 42 is formed by bending a flat plate around a box and has no lower surface. First, the third body 42
As a method of fixing the first main body to the second main body, the front lower member 1 provided inside the third main body 42 below the side plate 16 of the second main body
A hexagon socket head cap screw having a fixing member 43 having the same shape as 6t inserted into a screw hole 41b (not shown) provided inside the third main body and a bolt hole 43e provided on the bent portion 43d of the fixing member 43. After tightening and fixing 19
The third main body 42 is attached to the diagonal cut-and-raised portion 16n of the side plate 16 of the main body.
The guide member 43a of the fixing member 43 is placed so as to fit, and the hexagon socket head cap screw 19 inserted into the screw hole 43b and the bolt hole 16p provided on the L-shaped fastening protrusion 43c of the fixing member 43 is fitted, Tighten and fix using a hexagon wrench (not shown). Next, the third fixing member 43 can be fixed to the second main body by fixing the remaining fixing members 43 to the side plate 16 of the second main body in the same procedure.

[0059]

As is apparent from the embodiments described above, according to the present invention, no special jig is required for assembling the box body, and the tool is only the hexagonal bar wrench, which is integrated.
Even if the number of cables to be processed increases as the number of devices increases, it is easy to process the cables inside the device, and noise from the power supply etc. is prevented from getting on the control line, and no static electricity damage occurs. Easy expansion and ventilation A highly reliable and highly reliable electronic device can be provided.

[Brief description of drawings]

FIG. 1 is an internal perspective view of an electronic device according to the present invention.

FIG. 2 is an internal exploded perspective view of an electronic device according to the present invention.

FIG. 3 is an enlarged perspective view of essential parts for explaining a frame assembling procedure of the electronic device of the invention.

FIG. 4 is an enlarged perspective view of an essential part for explaining a frame assembling procedure of the electronic device of the invention.

FIG. 5 is an enlarged perspective view of an essential part for explaining a processing method by design change.

FIG. 6 is an internal perspective view of an added electronic device.

FIG. 7 is an enlarged perspective view of an essential part of the added electronic device.

FIG. 8 is a perspective view of an electronic device according to the present invention.

FIG. 9 is an exploded perspective view of an electronic device according to the present invention.

FIG. 10 is an enlarged perspective view of an essential part for explaining a procedure for assembling the electronic device of the invention.

FIG. 11 is an internal perspective view of a conventional electronic device.

FIG. 12 is an internal exploded perspective view of a conventional electronic device.

FIG. 13 is a perspective view for explaining a conventional procedure for adding an electronic device.

FIG. 14 is a perspective view showing the cable processing of the added electronic device.

FIG. 15 is an enlarged perspective view of the main part of the cable processing of the added electronic device.

FIG. 16 is a perspective view in which conventional electronic devices are stacked in two stages.

FIG. 17 is an exploded perspective view of conventional electronic devices stacked in two stages.

[Explanation of symbols]

 15 1st main body 15c Opening part 15e, 16n Diagonal cut and raised 16c, 16d, 21b, 22b Notch-shaped opening part 16g, 16i Positioning protrusion 16r L-shaped fastening protrusion 42 3rd main body 100 2nd main body

Claims (1)

[Claims] 1. A top plate and a bottom plate, each having a plurality of guide rails provided on opposite surfaces thereof, are fixed between two side plates having fastening structures at both upper and lower ends, and further exterior plates are fixed on both side surfaces and a rear surface. In an electronic device in which a printed board on which connectors are mounted, each of which is detachably mounted on the guide rail, is mounted on the box body, the box body is formed of a material having electrical conductivity and thermal conductivity. However, it has a rear exterior plate that is surrounded by the exterior plate and is fixed to the rear surface of the device in the exterior plate and has a ventilation hole, and cuts a part of the side surface portion provided on the side surface of the exterior plate. A U-shape having a structure in which a notched opening and a side exterior plate whose front part is bent in a U shape are attached, and further a front exterior plate that protects the front part and has an oblique part above and a ventilation hole at the bottom is attached. Detachable with the first main body A side plate provided with a stacking mechanism and a top plate and a bottom plate provided with the side plate and a detachable connection mechanism are assembled, and a part of the side plate is detachable, and each side of the first main body is surrounded. The structure is such that the exterior plate can be attached and detached from the direction, and the upper part of the front exterior plate is oblique and the lower part has a ventilation hole, the side surface part of the side exterior plate of the exterior plate is inflated, and the front part is U-shaped. A second main body having a structure to which a bent exterior plate is attached and a rear exterior plate having a vent hole is attached to the rear portion, a foot portion overlaid on the upper portion of the first main body or the second main body, and the apparatus upper portion inside A third main body having a reinforcing structure against external force from is combined, and the stacking mechanism is composed of an oblique cut-and-raised portion formed at the upper end, a positioning protrusion formed at the lower end, and an L-shaped fastening protrusion that follows the positioning protrusion. , The connection The structure is composed of a diaphragm-shaped cut-and-raised part formed on the side surface of the side plate, and a fastening projection formed by bending both ends of the top plate and the bottom plate downward, and a mechanism for separating a part thereof. The connection portion is fastened with a screw, and the side plate of the first main body and an opening formed by cutting out a part of a bottom plate connected to the side plate and a second plate,
An electronic device having an opening formed by connecting a cutout-like opening and an opening formed at both upper and lower ends of a central portion of a side plate of a main body.