JP3192203B2 - Power supply - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device having a shaftless structure.

[0002]

2. Description of the Related Art When wiring in a building, a valley of a corrugated sheet 60 buried in concrete of a slab 2 is sometimes used as shown in FIG. In this case, in the related art, the wiring cable L is inserted into the slab 2 in the electric shaft chamber in which the power supply device is housed and arranged.

On the other hand, recently, a shaftless power supply device not using an electric shaft chamber has been used.

[0004]

As described above, the corrugated sheet 60 of the slab 2 is formed by using the above-described shaftless power supply device.
In the past, when wiring was carried out, a method was used in which wiring cables were led out from the side of the housing of the power supply unit on the upper floor with flexible pipes, etc., and inserted into the slab. There is a problem that a space for providing an enclosure is required.

[0005] The present invention has been made in view of the above-mentioned problems, and while ensuring the functionality of a fire protection section specified by the Fire Services Act, the wiring section of a slab is made invisible by preventing the input portion of a wiring cable from being seen. An object of the present invention is to provide a power supply device capable of performing an incoming line.

[0006]

According to the present invention, in order to achieve the above object, a power supply unit is disposed inside a front side, a duct space for wiring in a vertical direction is provided inside a rear side, and a lower part is a building. is the No設on slab partitioning the upper and lower floors, the upper portion reaches the ceiling, an opening for performing the operation of the power supply unit in the power supply device consisting of a box body provided in front part, the upper Symbol slab Within the designated wiring space
The slide introduction port provided at one end of the refractory wiring pipe disposed within the slab in order you introduce cables from the outside
Exposed through the fire protection compartment for cable penetration provided in the slab located in the lower part of the box, and led the wiring cable led out from the lower part of the box to the lower floor of the ceiling above the fireproof the nest to the incoming line from the inlet of sexual wiring pipe
It was introduced into the wiring space in the lab .

[0007]

According to the present invention, there is provided in the slab
Provided at one end of the refractory wiring pipe disposed within the slab due to the wiring space you introduce cables from the outside
Wiring exposed to the lower surface on the lower floor side of the slab and penetrated through the fire protection compartment for cable penetration provided in the slab located at the lower part of the box, and led out from the lower part of the box to the ceiling floor of the lower floor Since the cable is inserted from the inlet of the fire-resistant wiring pipe and introduced into the wiring space in the slab, the wiring cable can be inserted into the slab without being seen. The enclosure for concealing the wiring and the space therefor are not required, and the structure does not directly enter the slab from the fire protection compartment for cable penetration, so that the provisions of the Fire Service Law can be satisfied.

[0008]

FIG. 1 shows an installation state of an embodiment, in which a power supply device A is installed on each floor of a building, and a box 1 constituting a main body of the power supply device A has a lower part partitioned by a lower floor. Is mounted on the slab 2 constituting the divided structure, and the upper portion is located between the ceiling material 4 and the slab 2 constituting the divided structure serving as a partition of the upper floor via the through hole 3 of the ceiling material 4. Let me. The boxes 1 and 1 of the power supply device A on the upper and lower floors are slabs 2
Are arranged vertically in the vertical direction.

The slab 2 on which the lower part of the upper case 1 is mounted and concealed is provided with a fire protection section B for cable penetration specified by the Fire Service Law. , and route the cables such as power cables L ₂ over a box body 1,1 of the lower floor. As shown in FIG. 2, the fire penetration section B for cable penetration covers the bottom opening with a bottom plate 6 made of a fire-resistant material such as gypsum board, and also fixes the lid plate 7 made of the same fire-resistant material at the top opening. A steel sleeve 5 filled with rock wool 9 is fixed to the opening 2a penetrating through the slab 2 and fixed by bolts 8. The fire-resistant bottom plate 6, cover plate 7, By rock wool 9,
Prevents fires that occur on the upper or lower floor from reaching the lower or upper floor.

[0010] Power cable L ₂ such as a wiring cable is wired so as to pass through the cable through a fire compartment B,
The through holes of the bottom plate 6 and the cover plate 7 through which the wiring cable passes are sealed with a fire-resistant seal material 10 made of a dam seal P so that the fire does not spread along the through holes.
Thus, according to the present invention, when wiring is performed in the slab 2,
Similarly to the wiring cable connected to the power supply device A on the lower floor, a wiring cable (for example, a cable for an outlet circuit) L to be wired in the slab 2 is once penetrated through the fire protection section B, and After being led out to the back, the wiring cable L is inserted through an inlet opening at one end of the refractory wiring pipe 61 and wiring into the slab 2 is performed. Slab
A corrugated sheet 60 is embedded in 2 as shown in FIG.
The valleys of the corrugated sheet 60 correspond to the wiring space of the wiring cable L.
Has become. That is, it is orthogonal to the cross section of the slab 2 in FIG.
FIG. 4 is a cross-sectional view as viewed from the surface
The distribution cable 1 inserted into the slab 2 is shown in FIG.
As shown in FIG. Therefore, since the site of entry into the slab 2 is located behind the ceiling, it is not exposed to the interior of the room, so that there is no particular need to provide wiring hiding. In addition, since the line does not enter the slab 2 directly from the fire protection section B, the fire protection section B does not touch the provisions of the Fire Service Law.

The box 1 of each power supply unit A is formed by bending to have a U-shaped cross section, and is made of a steel plate having an opening at the top and bottom ends. The inside of the front side is divided into two parts as shown in FIG. power supply unit 11 and a signal terminal unit 12 unit installation space for disposing a and has a rear internal duct space for wiring the power cable L ₂ and the signal line L ₁ and the like of the wiring cable. Shaft construction is partitioned into right and left by the partition plate 13 as shown in FIG. 3, a duct space 14a to arrange the signal cable L ₁
Shaft construction 1 disposing the strong electric power cable L ₂ and
4b. Reference numeral 15 denotes a support bar for attaching and supporting the signal cable L ₁ and the power cable L ₂ for strong current with a binding band or the like.

The unit installation space on the front side of the housing 1 is divided into upper and lower parts, and the upper space on the ceiling side is used for the signal terminal unit 12 including the signal transmission related members and circuits of the signal transmission system such as the telephone terminal block 16. The lower space, which is the floor side, is a space for disposing the power supply unit 11 provided with members and circuits related to high power, such as the branch breaker 17 and an instrument 26 such as a wattmeter. These upper and lower spaces are independent of each other, and
An opening for operating the respective units 11 and 12 is formed independently on the surface of the box 1.

In these spaces, a U-shaped support 18 is attached in the longitudinal direction of the surface opening side of both side walls of the box 1, and a bridge is formed between the side pieces 18 a of the support 18 on both sides located inside the box 1. By separating the front and back sides of the casing 1 by the partitioning plate 19 attached in a tangled manner, the space for installing the unit and the duct space are secured, and the inner unit mounting plate is mounted on the mounting base 20 parallel to both sides of the surface of the partitioning plate 19. As shown in FIG. 3 , both side legs 21 a of 21 are fixed with bolts 22 and nuts 23. Here, the power supply unit 9 is attached to the internal unit mounting plate 16 as shown in FIG.
Terminal block 2 for connecting and connecting the connection line 24 to the wiring 7
5, or as shown in FIG. 2, a meter 26 and the like are provided, and an inner door 27 is provided at a position where the branch breaker 17 is provided. The inner door 27 is pivotally supported by a hinge 28 so as to be openable and closable. In a closed state shown in FIG. 3, an operation unit such as an operation handle of the branch breaker 17 is exposed to the surface opening side of the box 1 through the window hole 27 a. The closed inner door 27 is fixed by a decorative screw 29.

The hinge 28 is attached to the tip of a supporting leg 32 fixedly mounted on one of the mounting bases 20, and a screw portion 34 for screwing and fixing the decorative screw 29 is mounted on the mounting base 15 on the opposite side. Attached to the tip of the supporting leg 33. In addition, a panel plate 35 is detachably provided at a position where the instrument 26 is disposed, and the instrument 26 is exposed.

On the other hand, the signal terminal unit 12 is provided with the telephone terminal block 16 and the branching device 3 for the signal line L _{1 on} the internal unit mounting plate 21.
6 and the like are arranged and covered with a panel plate 35 or a door. The peripheral frame 3 on which the operation units of the units 11 and 12 face.
Openings surrounded by 0 and 31 have independent doors 37 and 38, respectively.
Is pivotally opened and closed. For example, as shown in FIG. 4, the door 38 is pivotally supported by a hinge 39 attached to the peripheral frame 31 so as to be openable and closable. Similarly, in the case of the door 37, a hinge 40 attached to the peripheral frame 30 as shown in FIG. , So that each can be opened and closed independently.

As shown in FIG. 2, a panel 41 is removed with screws from the upper surface of the signal terminal unit 12 and the lower surface of the power supply unit 11 on the surface opening of the box 1 as shown in FIG. For example, an opening located below the power supply unit 11 and above the upper surface of the slab 2 is provided between the floor material 42 stretched above the slab 2 and the slab 2 as shown in FIG. forming the interconnection introduction exit for underfloor wirings such as a so-called raised floor for performing wiring between. In this case the power line inlet and outlet ports are not visible from outside by the flooring 42, not to impair the indoor appearance.

An opening located above the signal terminal unit 11 and located between the ceiling material 4 and the slab 2 is a wiring cable routed using a rack 44 suspended from the ceiling behind the lower surface of the slab 2. In this embodiment, the upper and lower panels 41 and 41 are closed, and the panel 41 can be removed and opened according to the height position of the ceiling material 4.

When the box 1 of the power supply device A having the above-mentioned configuration is mounted on the slab 2, the box 1 is fixed to the slab 2 on the floor by an L-shaped angle 45. At this time, the gap formed between the opening edge of the through hole 3 and the box 1 is closed by the L-shaped angle 45. The closing may be performed by pouring cement or the like into the gap. Then, in order to perform wiring utilizing the valleys of the corrugated sheet 60 (see FIG. 4) in the slab 2, the refractory wiring pipe 6 provided in the slab 2 is provided.
One end is exposed behind the ceiling on the lower floor. The fire-resistant wiring pipe 61 is made of a material capable of preventing fire for 2 hours in the embodiment. From the upper floor, fire compartment B
After passing through the bull L, wiring in the slab 2 is performed.
Separate from the underfloor wiring on the upper floor, for example,
When using the wiring in the lab 2
Wiring to use for wiring on the lower floor is smoke shielding, heat shielding
Although there is a problem due to the heat resistance and flame insulation,
The fire section provided on the slab 2 between the upper floor and the lower floor
By penetrating B, the above problem can be solved.
You can.

[0019]

According to the present invention, a wiring slab provided in a slab is provided.
Introducing port provided at one end of the refractory wiring pipe disposed within the slab in order you introduce cables from the outside into the space
Exposed to the lower floor side lower surface of the slab, and through the cable penetration fire protection section provided in the slab located at the lower part of the box, the wiring cable led out from the lower part of the box to the ceiling floor of the lower floor the incoming lines from the inlet of the fire-resistant wiring pipe
Since it was introduced into the wiring space in the slab, the wiring cable could be inserted into the slab without being seen, so there was no need for a special wiring concealed enclosure or space for it. Since the structure does not allow the wire to enter the slab directly from the fire protection compartment, there is an effect that the provisions of the Fire Service Law can be satisfied.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an embodiment of the present invention.

FIG. 2 is a sectional view showing an installation state of the power supply device.

FIG. 3 is a cross-sectional view of a housing of the power supply device.

FIG. 4 is an explanatory diagram of wiring in a slab.

[Explanation of symbols]

 2 Slab 61 Fireproof wiring pipe A Power supply device B Fire protection section for cable penetration L Wiring cable

Claims (1)

(57) [Claims] 1. A power supply unit is disposed inside a front side, a duct space for wiring in a vertical direction is provided inside a rear side, and a lower part is mounted on a slab that separates upper and lower floors of a building, and an upper part is above a ceiling. In a power supply device comprising a box provided with an opening for operating the power supply unit in the front part, an external space is provided in a wiring space provided in the slab.
The inlet provided at one end of the refractory wiring pipe installed in the slab to introduce the wiring cable from
The wiring cable exposed to the lower surface on the floor side, penetrated through a fire protection section for cable penetration provided in the slab located at the lower part of the box, and led out from the lower part of the box to the ceiling floor of the lower floor, the fire-resistant wiring pipe the incoming lines to within the above-mentioned slab from the inlet of
A power supply device, wherein the power supply device is installed in a wiring space .