JPS6114252Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a power distribution board having a closed box structure and equipped with a roof member, which is installed outdoors such as on the outer wall of a building.

[Technical background of the invention and its problems]

In order to prevent rainwater from entering the enclosure of outdoor-installed switchboards, which houses equipment such as circuit breakers, magnetic contactors, push button switches, etc., the front opening of the enclosure is sealed with a front door that can be opened and closed. Moreover, a roof member for forming an eave extending over the door closing portion is attached to the housing.

However, in conventional outdoor switchboards, the roof member was attached to the top of the housing by welding or other means so that it could not be removed. Even if the installation user requests that the roof member be removed due to problems with the appearance, etc., it is not possible to remove it, and it is necessary to have a separate roofless distribution board each time. It was inconvenient to have to go and install it.

[Purpose of invention]

This idea was created in view of the above-mentioned circumstances, and its purpose was to eliminate the inconvenience of conventional installation by creating a screw-fastened structure that allows the roof member of the switchboard to be easily removed. It is an object of the present invention to provide a power distribution board having a roof attachment/detachment structure that eliminates both the unsightly appearance caused by exposed screws when attached and the operability problem when attaching and detaching a roof member.

[Embodiment of the invention] An embodiment of the invention will be described below with reference to the drawings. Fig. 1 is a perspective view of the switchboard of this invention with the roof member removed, Fig. 2 is a cutaway front view of the main parts in the same state, and Fig. 3 is a side view of the main parts in cross section. Reference numeral 1 denotes a case housing devices (not shown) such as circuit breakers, magnetic contactors, and push button switches. A cross-sectional water drainage groove 3 is provided to prevent water leakage.

4 is a front opening 2 and a drainage groove 3 of the casing;
A front door that can be opened and closed covers the front protruding edge 3a of the
It has a circumferential groove 4a that is fitted to the outside of the housing drainage groove 3 with a closing gap A seal 5 for sealing and waterproofing is attached to the inner surface of the door.

6 is a fourth part on the front side of the housing 1 covering the top of the door closing part.
The roof member 6 has an overhanging eaves part 6a as shown in the figure, and the roof member 6 is attached to the lower surface of the housing 1.
Support pieces 7 and 8 supported in a floating state as shown in Fig. 4 on the upper surface and leg pieces 9 for fixing with screws located on the side of the roof eaves 6a and fitted into the housing drainage groove 3 are welded, etc. It is fixed by means of. Note that the leg piece 9 has a third leg piece 9 having an L-shaped bent part 9a at the lower end.
It has the shape as shown in Fig. 5, and
As shown in the figure, two are provided spaced apart on the left and right.

Reference numeral 10 indicates a mounting hole drilled as a screw hole in the upright plate portion of the L-shaped bent portion 9a of the leg piece 9, and reference numeral 11 indicates a mounting hole formed on the front side protruding edge 3a of the housing drainage groove 3.
A mounting hole consisting of a countersink hole drilled to match the mounting hole 10 of the mounting hole 11.
By aligning the mounting hole 10 of the roof leg piece 9 fitted in the housing drainage groove 3 with the screw 12 from the front side of the housing 1, the roof member 6 is fixed as shown in FIG. and is fixed in the state shown in FIG. Note that this roof member 6 is attached and detached with the front door 4 open, but when the door 4 is closed after the roof member 6 is screwed, the screwed members of the roof leg pieces 9 are attached to the front door 4. Since the roof member 6 is completely covered with the roof member 6, the roof member 6 can be installed in an attractive manner. Also,
Even when the roof member 6 is removed, the mounting hole 11 is covered by the front door 4, so the mounting hole 11 is not visible from the outside and has a good appearance. Since the waterproof gasket 5 attached to the inner surface of the housing 4 is closed by the closing door contact, there is no problem of rainwater etc. entering the housing drainage groove 3 infiltrating into the housing 1 from the position of the mounting hole 11. This embodiment has the following effects. Furthermore, this invention is based on the premise that it will meet the needs of those with and without a roof, and in the case of a roofless case (installed in a place where rainwater, etc. does not hit), rainwater, etc. will naturally not infiltrate, so the above-mentioned installation The hole 11 does not necessarily need to be sealed with the packing 5, and even if there is a roof, the packing 5 is not necessarily necessary if the screw threaded portion can be kept watertight.

[Effect of idea]

In the switchboard of this invention, the roof member 6 has the above-mentioned screw-fastened structure, so the roof member 6 can be easily attached and removed with the front door 4 open, and the switchboard can be installed without a roof according to the wishes of the installation user. This has the effect of making it easy to switch to the covered state.

Moreover, the fixing structure of the roof member 6 is such that the roof leg piece 9 is fitted into the housing drainage groove 3, and the attachment hole 10 of this leg piece is provided on the front protruding edge 3a of the housing drainage groove 3. Since the structure is such that the holes 11 are aligned and the screws 12 are inserted and tightened from the front side of the casing 1, the screw fixing part and the mounting hole 11 can be accessed from the outside regardless of whether the roof member 6 is attached or removed. It has the advantage of being invisible and improving its appearance.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a power distribution board according to an embodiment of the invention with the roof member removed; FIG. 2 is a cutaway front view of the main parts of the power distribution board with the roof member removed; and FIG. 3 is a cross-sectional view of the main parts. 4 is a cutaway side view of the main part with the roof member attached, and FIG. 5 is an enlarged view of section A in FIG. 4. 1... Housing, 2... Housing opening, 3... Drainage groove, 3a... Front protruding edge of drainage groove, 4...
Front door, 5... waterproof gasket, 6... roof member,
9... Leg piece, 10... Mounting hole, 11... Mounting hole, 12... Screw.

Claims (1)

[Scope of utility model registration request] A housing 1 with a built-in device is provided with a cross-sectional water drainage groove 3 on the outer circumference of the front opening 2 to prevent rainwater etc. from entering the housing, and the housing water drainage groove 3 is provided on a protruding edge 3a on the front side. a roof member 6 having a mounting hole 11 and an eave portion 6a extending from the front side of the casing 1, and a leg piece 9 that fits into the casing drainage groove 3 fixed to the lower surface of the eave portion side; The mounting hole 1 of this roof member leg piece 9
a mounting hole 10 provided at a location opposite to 1;
The roof member 6 is inserted into and removed from the mounting hole 11 and the mounting hole 10 from the front side of the casing 1 and is attached to the casing 1.
A power distribution board characterized by comprising a screw 12 that is detachably attached to the housing 1, and a front door 4 that can be opened and closed to cover the front opening 2 of the casing 1 and the front protruding edge 3a of the drainage groove 3.