JPH0819120A - Enclosure - Google Patents

Abstract

PURPOSE:To facilitate the grounding operation by forming to mount a plurality of operating surfaces of a grounding member on a downward opposite plate along the opposing direction of both side opposed plates. CONSTITUTION:A grounding member 4 has a longitudinal central piece 41 and trapezoidal opposed pieces 42 via a conductive plate material in such a manner that the piece 41 is disposed obliquely to an extended piece 43. A screw for clamping a conductor is provided at the piece 41, and the operating surface 42a to be fixed via an engaging groove to be engaged with the end of a screwdriver via the screw is parallel with the surface of the piece 41. The member 4 is directed toward the opening 16 of an enclosure body 1 grounded with the oblique surface of the piece 41, and the piece 43 is mounted near the opening 16 of the a vertical plate 13 along the opposing direction of both side opposed plates 14, 15. As a result, the grounding operation can be facilitated even in the state in which a circuit breaker 10a is disposed in the body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device mounting box for mounting breakers and control devices.

[0002]

2. Description of the Related Art Conventionally, as a device mounting box of this type, a box-shaped box is formed by vertically arranging a vertical facing plate and a side facing plate from both upper and lower edges and both left and right edges of a bottom plate vertically arranged. And a box body in which the device is installed, a lid body that is openably and closably attached so as to close the opening of the box body, and a plurality of work surfaces for connecting the conductive members, and is grounded. And a grounding member that is attached to the inner surface of the bottom plate of the box body and grounds the electrical equipment connected to the equipment.

[0003]

In such a conventional equipment installation box, since the grounding member is attached to the inner surface of the bottom plate, that is, the inner surface facing the closed lid, the inside of the box body is attached. In the state in which the device is arranged in the above, the grounding work for connecting the conductive member to the work surface of the grounding member is not easy to perform.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an equipment installation box in which grounding work is easy.

[0005]

In order to solve the above-mentioned problems, according to a first aspect of the present invention, a bottom plate arranged in the up-down direction extends from both upper and lower edges and left and right edges of the bottom plate to a vertical facing plate and a side facing plate. Connect the work of connecting the main body of the box, which is formed into a box shape by arranging each of them upright and in which the equipment is arranged, the lid body that is openably and closably attached so as to close the opening of the box body, and the conductive member. A grounding member for attaching to an inner surface of a grounded box main body having a plurality of working surfaces to ground an electric facility wired from a device, wherein the grounding member is the A plurality of working surfaces are attached to the lower facing plate along the facing direction of the opposite facing plates on both sides.

According to a second aspect of the present invention, in the first aspect, the grounding member is attached such that the working surface faces the direction of the opening of the box body. .

According to a third aspect of the present invention, in the first aspect, the ground member is attached near the opening of the box body.

[0008]

According to the first aspect of the present invention, the grounding member has the plurality of work surfaces attached to the lower facing plate along the facing direction of the side facing plate, and the bottom plate of the box body as in the conventional example. Since it is not attached to the inner surface of the box, the grounding work for connecting the conductive member to the work surface of the grounding member becomes easy even when the device is arranged inside the box body.

According to the second aspect of the present invention, the working surface of the grounding member faces toward the opening of the box body, and therefore faces the worker who performs the grounding work. The grounding work becomes easier than the ones.

According to the third aspect of the present invention, the grounding member is attached near the opening of the box body,
The grounding work becomes easier than that of the first aspect.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

This equipment installation box is a box body 1
The lid 2, the support member 3, and the ground member 4 are included.

The box body 1 is made of a metallic material, and is formed with a bottom plate 11, upper and lower facing plates 12, 13 and side wall plates 14, 15. Specifically, the rectangular bottom plate 11 is arranged in the vertical direction, and the upper and lower opposite plates 12, 1 are arranged from the upper and lower edges.
3 is formed in a box shape having an opening 16 by vertically arranging one and the other side facing plates 14 and 15 from the left and right side edges, respectively. The one side facing plate 14 is provided with a support portion 14a that supports the lid body 2 in an openable and closable manner near the opening 16.

The lid 2 is made of a metal material and is formed in a shallow box shape in which wall plates are arranged on four edges of a rectangular bottom plate. The lid 2 has a support portion 2a that is openably and closably supported by a support portion 14a of the one side facing plate 14 of the box body 1 on one of the long wall plates, and is also near the other long wall plate. An operation handle 2c having a locking portion 2b for locking the lid 2 to the other side facing plate 15 of the box body 1 is provided, and an operation hole 2d is further provided between the support portion 2a and the operation handle 2c. .

The supporting member 3 comprises a main body supporting member 31 and a lid supporting member 32. The body supporting member 31 is provided with a breaker (equipment) 10a and the like, and is attached to the bottom plate 11 of the box body 1. In addition, the lid support member 32
The control device (apparatus) 10b and the like are provided in the cover 2, and the cover 2 is attached so as to close the operation hole 2d. In this way, the control device 10b is operated through the operation hole 2d.

The grounding member 4 is formed of a conductive plate material and has a rectangular center piece 41 and trapezoidal opposing pieces 42, 42 in a substantially U-shaped cross section, and the tips of the opposing pieces 42, 42 are respectively formed. Extension pieces 43, 43 are provided extending in a direction away from each other.
That is, the central piece 41 is oblique with respect to the two extended pieces 42, 42. A screw for fixing the conductive wire (conductive member) 20 is provided on the central piece 41, and an engaging groove with which the tip of the driver is engaged is provided on the screw to fix the head surface (work The surface 41a is a surface parallel to the surface of the central piece 41. This grounding member 4 is arranged so that the surface of the slanted central piece 41 faces toward the opening 16 of the box body 1 where the grounding is performed, so that both of the extending pieces 42, 42
Along the facing direction of the facing plates 14 and 15 on both sides.
Is attached in the vicinity of the opening 16. At this time, the screw head surface 41a
Also goes in the direction of the opening 16 of the box body 1. The electrical equipment (not shown) wired and controlled by the control device 10b of the device mounting box is grounded by the grounding member 4.

In such a device mounting box, the grounding member 4 is attached to the lower facing plate 13 along the facing direction of the facing plates 14 and 15 on both sides, and the bottom plate of the box body 1 as in the conventional example. Box body 1 because it is not attached to the inner surface of 11
Even if the breaker 10a is installed inside the
The grounding work for connecting the conductive wire 20 to the head surface 41a of the can be facilitated.

Further, since the head surface 41a of the grounding member 4 faces toward the opening 16 of the box body 1, it faces the operator who performs the grounding work, which makes the grounding work easier. ing.

Further, since the grounding member 4 is attached near the opening 16 of the box body 1, the grounding work is easier.

In this embodiment, the head surface 41 of the ground member 4 is
Although a is directed toward the opening 16 of the box body 1, the structure may be directed toward the upper facing plate 12 if the grounding work can be easily performed.

Further, in this embodiment, the box body 1 is attached near the opening 16, but if it is easy to carry out the grounding work, the box body 1 should be attached not in the vicinity of the opening 16 but a little further back. It may be worn.

In this embodiment, the conductive member is a conductive wire.
However, it may be a terminal or the like connected to the tip of the conductive wire 20.

[0023]

According to the first aspect of the present invention, the grounding member has the plurality of work surfaces attached to the lower facing plate along the facing direction of the side facing plate, and the bottom plate of the box body as in the conventional example. Since it is not attached to the inner surface of the box, the grounding work for connecting the conductive member to the work surface of the grounding member can be facilitated even when the device is arranged inside the box body.

According to a second aspect of the present invention, since the working surface of the grounding member faces toward the opening of the box body, it faces the worker who performs the grounding work. Also, the grounding work can be further facilitated.

According to a third aspect of the present invention, the grounding member is attached near the opening of the box body.
The grounding work can be made easier than described.

[Brief description of drawings]

FIG. 1 is a perspective view showing an opened state of a lid according to an embodiment of the present invention.

FIG. 2 is a side view showing a state in which the above lid is opened.

FIG. 3 is a perspective view of the above.

[Explanation of symbols]

 1 Box body 11 Bottom plate 12 Upper facing plate 13 Lower facing plate 14 One side facing plate 15 Other side facing plate 16 Opening 2 Lid 4 Grounding member 41a Head surface (work surface) 10a Breaker (equipment) 10b Control device ( Equipment) 20 Conductive wire (conductive member)

Claims (3)

[Claims] 1. A box body in which equipment is arranged inside a box-shaped box in which a vertical facing plate and side facing plates are respectively provided upright from both upper and lower edges and right and left side edges of a bottom plate vertically arranged. A lid body that is openably and closably attached so as to close the opening of the box body, and an inner surface of the box body that has a plurality of work surfaces for connecting the conductive members and is grounded. A grounding member for grounding the electrical equipment wired from the equipment, in the equipment mounting box, wherein the grounding member, the plurality of working surfaces to the lower facing plate along the facing direction of the side facing plate A device installation box characterized by being attached. 2. The equipment installation box according to claim 1, wherein the grounding member is attached with the work surface facing toward the opening of the box body. 3. The equipment installation box according to claim 1, wherein the grounding member is attached near the opening of the box body.