JPH06315209A - Distribution board - Google Patents

Abstract

PURPOSE:To provide a distribution board in which the work for introducing the wire conductors into a lower box is facilitated. CONSTITUTION:A lower box 1 for containing distribution units 16, e.g. a main breaker 17 and branch breakers 18, has an opening closed by an upper box 20 and formed into a box by a bottom plate 2 and side plates 3 erected from the four sides thereof including a part 4 being fitted to a wall member. The fitting part 4 is provided, at one side thereof, with a wire introducing part 11 formed continuously to the bottom plate while extending obliquely upward from the base end toward the tip.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board used in houses, apartments, shops and the like.

[0002]

2. Description of the Related Art Conventionally, in a distribution board of this type, a bottom box and a lower box having an opening on one side of a side plate including a fitting portion that stands upright from four circumferences of the bottom plate and fits with a wall material are provided. The lower box includes a power distribution device such as a main breaker and a branch breaker housed in the lower box, and an upper box that closes an opening of the lower box.

In this distribution board, when the lower box is fixed to the wall material while the bottom plate of the lower box is in contact with the wall material (exposed from the wall material), the electric wire conductor (power source) in the wall material Side electric wire and load side electric wire) are introduced from the bottom plate and connected to distribution equipment such as a main breaker and a branch breaker.

In addition, when the lower box is fixed to the wall material with the fitting portion provided on the side plate of the lower box embedded in the wall material (in the state of being embedded in the wall material), the electric wire in the wall material Conductors (electric wires on the power supply side and electric wires on the load side) are introduced from the fitting part of the side plate and connected to power distribution equipment such as a main breaker and a branch breaker.

[0005]

According to the above-described distribution board, a lower box having an opening on one surface is formed by the side plate including the bottom plate and the fitting portion that is erected from the four circumferences of the bottom plate and fits into the wall material. , When the fitting part is embedded in the wall material (embedded in the wall material) and fixed to the wall material, the wire conductor (power supply side wire and load side wire) in the wall material is fitted to the side plate. Since it was introduced from the joint part and connected to the power distribution equipment such as the main breaker and the branch breaker, the electric wire conductor had to be introduced in the direction parallel to the wall material near the fitting part of the lower box. Therefore, there is a problem that the work of introducing the wire conductor into the lower box is troublesome.

The present invention has been made in view of the above circumstances, and an object thereof is to introduce the wire conductor into a wall material near the fitting portion of the lower box when the wire conductor is introduced into the lower box. It is an object of the present invention to provide a distribution board that does not need to be introduced in the parallel direction and thus facilitates the work of introducing the wire conductor into the lower box.

[0007]

In order to solve the above-mentioned problems, a distribution board according to a first aspect of the present invention is a side plate including a bottom plate and a fitting portion which is erected from four circumferences of the bottom plate and fitted to a wall material. A lower box having an opening on one side, a distribution device such as a main breaker and a branch breaker housed in the lower box, and an upper box that closes the opening of the lower box. Has a configuration in which at least one side of the fitting portion is provided with an input wire portion which is formed in an upward slope from a base end continuously provided on the bottom plate toward a tip and into which an electric wire conductor is introduced.

According to a second aspect of the distribution board, the lower box of the first aspect is provided with an isolation wall for dividing the incoming line portion into a plurality of incoming line chambers.

According to a third aspect of the present invention, there is provided the distribution board according to the second aspect, in which the isolation wall is provided with a reinforcing wall which is continuously provided between the side plate and the bottom plate and reinforces the incoming line portion.

According to a fourth aspect of the present invention, there is provided a distribution board in which the knock-out member for penetrating the inside of the lower box to the outside is provided in the entry room of the second or third aspect.

[0011]

According to the structure of the first aspect, the wire entry portion for introducing the wire conductor can be formed at an obtuse angle with respect to the wall material.

According to the second aspect of the invention, in addition to the function of the first aspect, the wire conductor can be introduced from the wire entry chamber that is fitted to the storage positions of the main breaker and the branch breaker.

According to the structure of claim 3, in addition to the function of claim 2, when a force is applied to the side plate, a force is applied to the bottom wall by the reinforcing wall.

According to the structure of claim 4, in addition to the operation of claim 2 or claim 3, the inside of the lower box is exposed to the outside in accordance with the method of attaching the lower box to the wall material (exposed or embedded). It can be penetrated or not penetrated.

[0015]

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

Reference numeral 1 denotes a lower box, which is opened at one side by a side plate 3 including a substantially rectangular bottom plate 2 and a fitting portion 4 which is erected from four circumferences of the bottom plate 2 and which is fitted to a wall member 5 (see FIG. 4). It is formed in a box shape having. As shown in FIG. 1, the bottom plate 2 has a fixing shaft 6 for fixing a power distribution device, which will be described later. After fitting a sill hole of a substrate frame, which will be described later, into the fixing shaft 6, the fixing screw 6a is screwed. Fix the power distribution equipment by mating. In addition, at approximately four corners of the lower box 2, there are attachment parts 7 in which attachment members (not shown) can be arranged, and they can be fixed in an exposed state on the wall member 4.

As shown in FIG. 4, the side plate 3 has a fitting portion 4 which fits inside the wall member 5 at the base end near the bottom plate 2, and has a locking end for locking an upper box described later. It has means 8. As shown in FIGS. 1 and 5, the fitting portion 4 has an attachment portion 9 in which an attachment member (not shown) for fixing a wall material is arranged on each of a pair of opposing sides thereof. ing. Further, the fitting portion 4 is provided on one side thereof with a wire entry portion 11 which is formed in a slanting upward shape from a base end continuously provided on the bottom plate 2 toward a tip thereof and into which the electric wire conductor 10 is introduced. Thereby, as shown in FIG. 4, the wire conductor 10 is introduced into the lower box 1 by forming the wire-entry portion 11 into the wall member 5 at an obtuse angle.
When it is installed in the inside of the
Does not need to be introduced in a direction parallel to the wall material 5, and the work of introducing the electric wire conductor becomes easy.

The wire entry portion 11 is divided into a plurality of wire entry chambers 13 by a plurality of isolation walls 12, and the wire conductors are arranged according to the storage positions of the main breaker and the branch breaker of the power distribution equipment described later.
10 can be stored. Entry room 13
A knockout member 14 that penetrates the inside of the lower box 1 to the outside in a detached state is provided on the inside, and the device is designed so as not to spoil the aesthetic appearance when the lower box 1 is exposed from the wall material 5. In addition, the partition walls 12 that divide the wire entry chambers 13 at both ends and the wire entry chambers 13 arranged next to the wire entry chambers 13 are provided in FIG.
As shown in Fig. 3, the line-in part is connected between the side plate 3 and the bottom plate 2.
A reinforcing wall 15 for reinforcing 11 is provided, and when a force is applied to the side plate, a force is applied to the bottom wall by the reinforcing wall, and the strength reliability of the incoming wire portion is improved.

Reference numeral 16 is a power distribution device, and both ends of a main breaker 17 and a branch breaker 18 housed in the lower box 1 are fixed to two board frames 19, respectively. This power distribution device 16
As described above, the circular holes 19a provided at the four corners of the substrate frame 19 are fitted into the fixed shaft 6, and then the fixing screws 6a are screwed together to be arranged in the lower box 1.

An upper box 20 closes the opening of the lower box 1 and is locked by a locking means 8 provided at the tip of the side plate 3. The upper box 20 has a display portion 22 for projecting the operation handles 17a, 18a of the main breaker 17 and the branch breaker 18 and displaying the place of use according to the load, and is locked by the locking means 8 of the lower box 1. It has an inner lid 21 and a cover 23 that is openably and closably connected to the inner lid 21 to display or hide the display unit 22.

According to this embodiment, the wire entry portion into which the wire conductor is introduced is provided only on one side of the fitting portion, but the wire entry portion may be provided on the other side. Further, the reinforcing wall 15 is not necessarily provided in the partition wall that divides the wire entry rooms at both ends and the wire entry rooms that are arranged next to these wire entry rooms, and may be provided in some or all of the partition walls. It may be provided.

[0022]

According to the distribution board according to the first aspect of the invention, the wire entry portion for introducing the electric wire conductor can be formed at an obtuse angle with respect to the wall material, and when the electric wire conductor is introduced into the lower box, In the vicinity of the fitting portion of the box, it is not necessary to introduce the electric wire conductor from the direction parallel to the wall material, and therefore the work of introducing the electric wire conductor into the lower box becomes easy.

According to the distribution board of the second aspect, the electric wire conductor can be introduced from the wire entry chamber that matches the storage positions of the main breaker and the branch breaker. The work of introducing it into the lower box becomes easier.

According to the structure of claim 3, when a force is applied to the side plate, a force is applied to the bottom wall by the reinforcing wall. Therefore, in addition to the effect of claim 2, the strength reliability of the incoming line portion is improved. Play.

According to the structure of claim 4, according to the method of attaching the lower box to the wall material (exposed or embedded), the inside of the lower box may or may not be penetrated to the outside. Alternatively, in addition to the effect of the third aspect, it is possible to prevent the appearance from being spoiled even when the lower box is exposed from the wall material.

[Brief description of drawings]

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

2 is a perspective view of the one in FIG. 1. FIG.

FIG. 3 is a top view showing a state where the upper box of FIG. 1 is removed.

FIG. 4 is a cross-sectional view showing a state in which the one shown in FIG. 1 is attached to a wall material.

5 is a partial perspective view showing a line-in portion of the lower box of FIG. 1. FIG.

FIG. 6 is a partial cross-sectional view showing the vicinity of the line-in portion of the one shown in FIG.

[Explanation of symbols]

 1 Lower box 2 Bottom plate 3 Side plate 4 Fitting part 5 Wall material 10 Wire conductor 11 Inlet part 12 Isolation wall 13 Inlet room 14 Knockout member 15 Reinforcing wall 16 Power distribution equipment 17 Main breaker 18 Branch breaker 20 Upper box

Claims (4)

[Claims] 1. A lower box having an opening on one side of a side plate including a bottom plate and a fitting portion which is erected from four circumferences of the bottom plate and fits into a wall material, and a main breaker and a branch housed in the lower box. In a distribution board provided with a power distribution device such as a breaker, and an upper box that closes the opening of the lower box, the lower box is at least one side of the fitting portion, from the base end connected to the bottom plate to the tip. A distribution board, which is provided with an incoming wire portion which is formed to be inclined upward toward which an electric wire conductor is introduced. 2. The distribution board according to claim 1, wherein the lower box is provided with an isolation wall that divides the line-in portion into a plurality of line-in rooms. 3. The distribution board according to claim 2, wherein the isolation wall is provided with a reinforcing wall which is continuously provided between the side plate and the bottom plate and reinforces the incoming line portion. 4. The distribution board according to claim 2 or 3, wherein a knockout member that penetrates the inside of the lower box to the outside in a detached state is provided in the entry room.