JPH10145915A - Housing unit for electric equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing unit for electric equipment capable of easily connecting electric wires to the electric equipment and also of easily attaching or detaching a lid. SOLUTION: A back panel portion 1 is provided for arranging an electric equipment 4 having wire connecting portions 20, 21 for connecting the conductors of input/output lines from the outside. An electric equipment installing base 25 having a raised piece 13 formed with knock-out holes 12 for inserting electric conductors to be connected to the wire connecting portions 20, 21 is provided; a lid portion 30 covering the electric equipment 4 and the raised piece 13 attached to the electric equipment installing base 25 is provided; and also a lid 26 is provided which has a bottom plate portion 52 having a knockout notch portion 44 formed to match the knockout holes 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box-shaped electric device storage device for storing electric devices such as a watt hour meter and a switch.

[0002]

2. Description of the Related Art A conventional box-shaped electric device housing device of this type is provided with electric devices such as a watt hour meter and a switch having an electric wire connecting portion for connecting electric wire conductors of input / output lines from the outside. And a lid that is attached to the electric device installation base and covers the electric device.

[0003] When connecting a wire conductor to a wire connection portion of an electrical device provided on an electrical device installation base, a wire insertion hole is formed in the lid, and the wire conductor is inserted into the wire insertion hole. Also, a notch is formed from the distal end to the proximal end of the lid, and a wire conductor is connected to a wire connection portion of the electric device in advance to attach the lid to the electric device installation base. The wire conductor was passed through.

[0004]

However, when the lid is an electric wire insertion hole, after inserting the electric wire conductor into the electric wire insertion hole, the electric wire conductor is connected to the electric wire connecting portion of the electric equipment, and then the lid is distributed to the electric equipment. It is necessary to attach to the installation base, and it is difficult to connect the electric wire conductor to the electric wire connection portion of the electric device.

In the case where the cover is a cutout, a wire conductor is previously connected to a wire connection portion of an electric device, and then the wire conductor is inserted through the cutout as it is while attaching the cover to an electric device installation base. Therefore, the work of connecting the wire conductor to the wire connection part of the electrical equipment is easy, but the lid must be attached to the electrical equipment installation base by aligning the input and output directions of the wire conductor with the notch of the lid. Therefore, there is a problem that the work of attaching the lid to the electric device disposing base is troublesome.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an electric equipment storage device in which the electric wire conductor can be easily connected to the electric equipment, and the work of attaching the lid can be easily performed.

[0007]

According to a first aspect of the present invention, there is provided an electric equipment storage device having a back plate portion on which an electric device having an electric wire connection portion for connecting an electric wire conductor of an input / output line from the outside is disposed. An electric equipment disposition base having a riser piece formed with a knockout hole through which an electric wire conductor connected to an electric wire connection part is inserted, and attached to the electric equipment disposition base to cover the electric equipment and the riser piece And a lid having a falling piece formed with a knockout cutout portion aligned with the knockout hole.

According to the first aspect of the present invention, when the knockout hole is cut out and the electric wire conductor connected to the electric wire connection portion of the electric equipment is inserted, the electric wire conductor is positioned by the knockout hole, so that the knockout notch is cut out. As a result, the lid can be attached to the electric device disposition base as it is, and the work of connecting the electric wire conductor to the electric device becomes easy, and the operation of attaching the lid becomes easy.

According to the second aspect of the present invention, there is provided an electric equipment storage device.
In the above, the thickness of the edge of the rising piece is larger than that of the inside. According to the electric device storage device of the second aspect, in addition to the effect of the first aspect, the strength of the rising piece is increased and strengthened, and the knockout hole is easily cut off. According to the third aspect of the present invention, there is provided the electrical equipment storage device.
, A wall is erected at a position facing the rising piece of the back plate, and an insertion recess into which an edge of the lid is inserted is formed in the wall, and the falling piece and the back plate are formed. A locking claw is formed on one of the portions, and an engagement recess for engaging with the locking claw is formed on the other of the falling piece and the back plate.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects, the edge of the lid is inserted into the insertion recess, and the locking claw is engaged with the engagement recess. By doing so, since the lid is attached to the electric device installation base, the work of attaching the lid to the electric device installation base becomes easy. According to a fourth aspect of the present invention, in the third aspect, the falling piece has an operating portion for bending the falling piece.

According to the electrical equipment storage device of the fourth aspect, in addition to the effect of the third aspect, the operation of operating the operation piece makes it easier to remove the lid from the electrical equipment installation base. The electrical equipment storage device according to claim 5 is claim 3 or claim 4.
, The lid has a pair of side plate portions continuous on both sides of the lid portion and the falling piece, and a groove is formed in the back plate portion so that a tip of each of the side plate portions is fitted.

According to the electric device storage device of the fifth aspect, in addition to the effect of the third or fourth aspect, the lid is inserted into the insertion recess of the wall and the side plate is inserted into the groove, so that the lid is provided. And the adhesion to the electrical equipment installation base is improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. That is, the electric device storage device includes the electric device installation base 25 and the lid 26. The electric device disposition base 25 has a back plate portion 1 on which the electric device 4 having electric wire connecting portions 20 and 21 for connecting the electric wire conductors 16 of the input / output lines from the outside is disposed.
It has a rising piece 13 in which a knockout hole 12 for inserting a wire conductor 16 connected to 0, 21 is formed.

The electric equipment installation base 25 of the embodiment is
The rising piece 13 is integrally formed, and the back plate 1 is opposed thereto.
A roof 2 serving as a wall is erected on the upper side. First, as shown in FIG. 3, the back plate portion 1 is made of plastic which is attached to the wall surface 3 and has an electric device 4 mounted on the front surface thereof. A plurality of mounting holes 9 are formed in a peripheral portion of the plate portion 1.

The roof portion 2 is integrally formed on the upper side of the back plate portion 1 and covers the upper side of the electric equipment 4, and the roof plate 2c is provided upright in parallel with the upper side of the four circumferences of the back plate portion 1. And a rising piece 2a, and a hanging piece 2 connected to a lower surface of the rising piece 2a.
b. Further, the amount of protrusion of the roof portion 2 from the back plate portion 1 toward the front is larger than the amount of protrusion of the electric device 4, and the width of the roof portion 2 is formed larger than the width of the electric device 4. The roof portion 2 is formed hollow by a rising piece 2 a and a roof plate 2 c, and has a front end opening downward and a rear end opening toward the wall surface 3. As a result, a concave portion 5 formed of a through hole formed near the roof plate 2c is formed. When the convex portion 8 is provided on the wall surface 3 as shown in FIG.
Position. Further, a temporary fixing piece 47 is protruded from the tip of the hanging piece 2b. As shown in FIGS. 4 and 5, the opening at the front end side of the roof portion 2 forms a groove 32 forming an insertion recess into which the edge portion of the lid portion 30 is inserted, along the periphery of the lower surface of the front end of the roof portion 2. The upper end of the lid 30 and the side plate 31 of the lid 26 is inserted into the concave groove 32.

The electric apparatus 4 has a watt hour meter 6 which is directly attached to the back plate 1 with screws 10 and a switch 8 including a circuit breaker which is attached to the back plate 1 via the plate 7. The electric wire connection unit 20 is an output-side electric wire connection unit of the switch 8, and the electric wire connection unit 21 is an input-side electric wire connection unit of the wattmeter 6. 11
Is a screw for mounting the plate 7 through the hole 7a of the plate 7, 14 is a cylindrical portion forming a screw hole into which the screw 11 is screwed, 17 is a screw for mounting the switch 8, and 22 is a plurality of screws for supporting the plate 7. It is a ridge.

Further, vertical grooves 27 are formed on both sides of the back plate 1 so that the ends of the side plates 31 formed on the lid 26 are fitted into the grooves. The water that flows through the vertical groove 27 by opening is dropped. This vertical groove 27
Is integrally formed so as to form a shape in which the end of the peripheral wall 1a in which both sides of the back plate portion 1 are bent rearward in the cross-sectional shape is bent outward in an L-shape as shown in FIG.

Reference numeral 57 (FIG. 7) denotes a circular groove, which knocks out the bottom of the groove 57 to open the knockout hole 12.
Reference numeral 15 denotes a knockout hole formed in the back plate portion 1, which can be applied when the object of the wall surface 13 has, for example, a concave portion from which the electric wire can be drawn out. The electric wire is inserted into the peripheral wall 1 a on the back surface side of the back plate portion 1. A cover portion 56 having a substantially inverted U-shaped cross section to be covered
Are integrally formed.

The rising piece 13 has a peripheral edge 13a having a thickness greater than that of the inner edge 13a to increase rigidity. Lid 2
6 is the electric equipment 4 attached to the electric equipment
And a bottom plate portion 52 which is a falling piece having a lid 30 covering the rising piece 13 and having a knockout notch 44 aligned with the knockout hole 12. In the lid 26 according to the embodiment, the lid 30 closes the front surface of the electric device 4, and the side plate 31, which closes the side surface of the electric device 4 continuously with the lid 30 and whose tip fits into the vertical groove 27, is formed. And a bottom plate portion 52 that is continuous with the lid portion 30 and closes the bottom surface of the electric device 4. The lid 30 has a window 37 for viewing the watt-hour meter 6 and a window 38 for operating the switch 8.
8 is closed by a cover 39 which can be opened and closed freely. A projecting piece 48 is formed inside the upper end of the lid 30.
The side plate portion 31 extends from both sides of the lid portion 30 in the same direction, and the outer surface of the side plate portion 31 is
7 close to the inner surface. Further, an insertion strip 41 is formed above the overhanging piece 48 of the lid section 30 and an upper end of the side plate section 31 via a step section 40, and the insertion strip 41 is inserted into the concave groove 32 of the roof section 2.

The tip of the bottom plate 52 contacts the surface of the back plate 1 when the lid 26 is attached. Further, a knockout hole 43 and a knockout cutout portion 44 are formed so as to overlap with a position matching the knockout hole 12. FIG. 9 shows a state in which the knockout cutout 44 is formed, and the electric wire conductor 16 can be easily inserted into the knockout cutout 44 when the cover 26 is opened and closed.

A locking claw 33 is formed on the bottom plate 52, and an engaging recess 34 with which the locking claw 33 is engaged is formed on the back plate 1. The locking claw 33 is engaged with the engagement concave portion 3 by bending the bottom plate portion 30.
An operation section 35 to be detached from the bottom 4 is provided near the locking claw 33 of the bottom plate section 30. When the insertion strip 41 at the upper end of the lid 26 is fitted into the groove 32 and the locking claw 33 is locked in the engagement recess 34, the lid 26 is attached to the substrate 25. At this time, the upper ends of the lid 30 and the side plate 31 are located below the roof 2, and the edge of the concave groove 32 at the tip of the roof 2 engages with the step 40 as shown in FIG. 5. To prevent water intrusion. As shown in FIG. 4, the overhanging piece 48 at the upper end of the lid 26 can be hooked and temporarily fixed to the temporary fixing piece 47, so that the posture can be temporarily held when the lid 26 is attached, and carelessly when the cover 26 is removed. It is convenient because it does not come off.

According to this embodiment, when knockout hole 12 is cut out and wire conductor 16 connected to wire connection portions 20 and 21 of electric equipment 4 is inserted, knockout hole 1 is cut out.
2, the electric wire conductor 16 is positioned, so that the knockout notch 43 can be cut out and the lid 26 can be directly attached to the electric device installation base 25.
Is easily connected to the electric device 4, and the work of attaching the lid 26 is also facilitated.

Further, since the thickness of the edge 13a of the rising piece 13 is made larger than that of the inside, the strength of the rising piece 13 is increased and strengthened, and the knockout hole 12 is easily cut off. A roof portion 2 as a wall is erected at a position facing the rising piece 13 of the back plate portion 1, and a concave groove 32 as an insertion concave portion into which an edge portion of a lid portion 30 is inserted is formed in the roof portion 2. Since the locking claw 33 is formed on the bottom plate portion 52 and the engaging concave portion 34 for engaging with the locking claw 33 is formed on the back plate portion 1, the edge of the lid portion 30 is inserted into the insertion concave portion, and the locking is performed. Since the lid 26 is attached to the electric device installation base 25 by the engagement of the claws 33 with the engagement recesses 34, the operation of attaching the lid to the electric device installation base 25 becomes easy.

The operation unit 3 for bending the bottom plate 52 as a falling piece
5 is provided on the bottom plate portion 52, so that the operation of the operation piece 35 makes it easy to remove the lid 26 from the electric device installation base 25. Further, the lid 26 has a pair of side plate portions 31 continuous on both sides of the lid portion 30 and the bottom plate portion 52, and a concave groove 27 into which the tips of these side plate portions 31 are fitted is formed in the back plate portion 1. Since the part 30 is inserted into the concave groove 32 and the side plate part 31 is inserted into the vertical groove 27, the lid 2
6 and the electrical equipment arrangement base 25 are improved in adhesion.

The locking claws 33 may be formed on the back plate 1 and the engaging recesses 34 may be formed on the bottom plate 30 which is a standing part.

[0026]

According to the first aspect of the present invention, when the knockout hole is cut out and the electric wire conductor connected to the electric wire connection portion of the electric device is inserted, the electric wire conductor is positioned by the knockout hole. And the cover can be attached to the electric device disposition base as it is, so that the work of connecting the electric wire conductor to the electric device becomes easy and the work of attaching the cover becomes easy.

According to the electric equipment storage device of the second aspect, in addition to the effect of the first aspect, the strength of the rising piece is increased and strengthened, and the knockout hole is easily cut off. Claim 3
According to the electrical equipment storage device of claim 1, claim 1 or claim 2
In addition to the above effects, the edge of the lid is inserted into the insertion recess, and the locking claw is engaged with the engagement recess, so that the lid is attached to the electric device installation base. The work of attaching the lid to the base becomes easy.

According to the electrical equipment storage device of the fourth aspect, in addition to the effect of the third aspect, the operation of operating the operation piece makes it easy to remove the lid from the electrical equipment installation base. According to the electrical equipment storage device of the fifth aspect, in addition to the effects of the third or fourth aspect, the lid is inserted into the insertion recess of the wall and the side plate is inserted into the groove, so that the lid and the electrical equipment are provided. Adhesion with the installation base is improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a front view of a state in which a lid is removed.

FIG. 3 is a partially enlarged sectional view of the same.

FIG. 4 is a cross-sectional view of a state where the lid is temporarily fixed.

FIG. 5 is a sectional view showing a state where a lid is attached.

FIG. 6 is a partially enlarged sectional view thereof.

FIG. 7 is a partial cross-sectional view of the back plate.

FIG. 8 is a bottom view with the lid removed.

FIG. 9 is an exploded bottom view with the lid removed.

FIG. 10 is a cross-sectional view showing a state where a lid is attached.

FIG. 11 is a partial cross-sectional view showing a part of locking of a lid.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Backboard part 2 Roof part which is a wall part 4 Electric equipment 12 Knockout hole 13 Rise piece 13a Edge 16 Electric wire conductor 20 Electric wire connection part 21 Electric wire connection part 25 Electric equipment installation base 26 Cover 27 Vertical groove which is a groove DESCRIPTION OF SYMBOLS 30 Cover part 31 Side plate part 32 Groove which is insertion recessed part 33 Locking claw 34 Engagement concave part 35 Operation piece 44 Knockout notch part 52 Bottom plate part which is a falling piece

Claims (5)

[Claims] 1. A knockout hole having a back plate portion on which an electric device having an electric wire connection portion for connecting an electric wire conductor of an input / output line from the outside is inserted and through which an electric wire conductor connected to the electric wire connection portion is inserted. And a knockout notch having a cover attached to the electric device mounting base and covering the electric device and the rising piece, the knockout notch being aligned with the knockout hole. And a lid having a falling piece formed with a portion. 2. The electric equipment storage device according to claim 1, wherein the thickness of the edge of the rising piece is larger than that of the inside. 3. A wall is erected on the back plate at a position facing the rising piece, and an insertion recess into which an edge of the lid is inserted is formed in the wall, and the falling piece and 2. A locking claw is formed on one of the back plate portions, and an engagement recess for engaging with the locking claw is formed on the other of the falling piece and the back plate portion.
Or the electrical equipment storage device according to claim 2. 4. The electric equipment storage device according to claim 3, wherein the fall piece has an operation section for bending the fall piece. 5. The back plate has a pair of side plate portions continuous on both sides of the lid portion and the falling piece, and a groove is formed in the back plate portion so that tips of the side plate portions are fitted. The electrical equipment storage device according to claim 3 or 4.