JP2003274519A - Distribution board cover and distribution board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution board cover and distribution board, capable of significantly reducing the manufacturing cost in a simple structure and facilitating the inventory control. <P>SOLUTION: In a specification mode 2, a limiter cover 42, a main breaker cover 43, and a branch breaker cover 44 are mounted. A blank cover 45 is also provided adjacent to the branch breaker cover 44. This embodiment can eliminate the need for forming the branch breaker cover 44 with nesting, therefore the manufacturing cost can be reduced. Elimination of the need for stocking a plurality of types of branch breaker covers can facilitate the inventory control. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a distribution board having a main breaker and a branch breaker.

[0002]

2. Description of the Related Art Generally, a distribution board is provided with a main breaker and a plurality of branch breakers in a base, and the operation parts of the main breakers and the operation parts of a plurality of branch breakers are covered with a cover on the front surface of the base. It is provided to face you.

Among such distribution boards, particularly for household distribution boards, it is required to make the base as small as possible by directly installing it indoors. Therefore, according to the specification form of the user. It is most ideal to have the minimum size for the various components (limiter, branch breaker, etc.) installed, but considering the manufacturing cost and inventory control, use a base with several sizes. Supports various specifications.

It is possible, for example, that a certain distribution board specification form (hereinafter referred to as "specification example 1") has a limiter and a main breaker, and a maximum of 28 branch breakers can be provided. In the case of the base, another specification form (hereinafter referred to as “Specification example 2”) is the same as in Specification example 1, even though the limiter and the main breaker are not changed.
When the number of branch breakers is 24, the branch breaker cover having the branch breaker windows for 28 circuits used in the specification example 1 is formed so that the branch breaker windows for four circuits cannot be opened in the manufacturing process. By doing so, the base of Specification Example 1 was made common so that it could be used.

[0005]

In the prior art as described above, when the cover is a resin molded product, it is generally molded by using an injection molding die.

However, this prior art is for a branch breaker cover for forming a 28-circuit branch breaker window used in Specification Example 1 in order to form an unnecessary window hole so that it cannot be opened in a manufacturing process. In the mold, since the molding was done by assembling the nest at the location corresponding to the window where the branch breaker window is not formed, the assembly work is very complicated and the manufacturing efficiency is also reduced. It was In addition, when manufacturing using a nest, a line shape corresponding to the nest may appear on the surface side of the branch breaker cover, and in such a case, the appearance was bad.

Furthermore, for example, a specification form of a branch breaker cover in which branch circuit breaker windows for 24 circuits of Specification Example 2 are further different (for example, a maximum of 2 branch breakers is provided).
Depending on the distribution board that can be provided with 4 circuits), it has a size of 28 circuits, so it may not be possible to use it, and it took a lot of time and labor to manage the inventory. .

The present invention has been made in view of the above, and provides a cover for a distribution board and a distribution board which can greatly reduce the manufacturing cost with a simple structure and can easily manage the inventory. The purpose is to provide.

[0009]

According to a first aspect of the present invention, there is provided a cover for a distribution board having a rectangular opening; a cover provided so as to close a part of the opening, and at least an operating portion of a main breaker. A main breaker cover having a window hole facing it; a branch breaker cover provided so as to close a part of the opening and having window holes desired by at least a plurality of branch breaker operating parts; a main breaker cover and A blank cover provided to the opening so as to close the space breaker cover when the space part orthogonal to the longitudinal direction of the opening occurs in the opening even when the branch breaker cover is provided. Characterize.

In the present invention, the distribution board cover may be configured to have at least a main breaker cover and a branch breaker cover, and other cover portions (a limiter cover if a limiter can be provided). Etc.) can be provided as needed.

The main breaker cover and the branch breaker cover of the distribution board cover may be formed separately or integrally.

According to the present invention, a cover body having a rectangular opening; a main breaker cover provided so as to close a part of the opening and having a window hole at least facing the operation portion of the main breaker. A branch breaker cover provided so as to close a part of the opening and having a window hole desired by at least a plurality of branch breaker operating parts; and a state in which a main breaker cover and a branch breaker cover are provided. Also, when a space portion orthogonal to the longitudinal direction of the opening occurs in the opening, it is necessary to form the branch breaker cover using the nest by providing a blank cover provided in the opening so as to close the space portion. Since it does not exist, the manufacturing cost can be reduced and an unnecessary line shape appears on the surface side of the branch breaker cover. No. Further, even though the number of branch breakers that can be arranged is the same, it is not necessary to have a plurality of types of branch breaker covers having different sizes, so that inventory management can be facilitated.

According to a second aspect of the present invention, there is provided a distribution board having a box-shaped resin base having an opening on one surface and having an electric component housing therein, and a switch housed in the electric component housing. A main breaker having an operating section for switching the switch and a plurality of branch breakers having an operating section for switching the switch; a rectangular opening smaller than the opening and provided on the base so as to cover the opening of the base. And is provided so as to close a part of the opening,
A main breaker cover having at least a window hole facing the operation part of the main breaker, and a cover formed with at least a branch breaker cover having window holes desired by the operation parts of the branch breakers; Even if the breaker cover and the branch breaker cover are provided, when a space portion orthogonal to the longitudinal direction of the opening is generated in the opening, a cover having a blank cover provided in the opening so as to close the space portion is provided. And; are provided.

In the present invention, the cover may have at least a main breaker cover and a branch breaker cover, and other cover portions (a limiter cover or the like if a limiter can be provided) are required. It can be provided according to.

The main breaker cover and the branch breaker cover of the distribution board cover may be formed separately or integrally.

According to the present invention, there is provided a box-shaped resin base having an opening on one surface and having an electric component storage section formed therein; and switching of switches accommodated in the electric component storage section. A main breaker having an operating section for performing, and a plurality of branch breakers having an operating section for switching switches; provided on the base so as to cover the opening of the base, and having a rectangular opening smaller than the opening , A main breaker cover that is provided so as to close a part of the opening and has a window hole that at least faces the operation portion of the main breaker, and a branch that has a window hole that is desired by the operation portions of at least a plurality of branch breakers. A space that is orthogonal to the longitudinal direction of the opening even when the cover formed with the breaker cover and the main breaker cover and the branch breaker cover are provided. In the case where the above occurs in the opening, a cover having a blank cover provided to the opening so as to close the space portion; and the branch breaker cover does not have to be formed by using a nest, so that the manufacturing cost is reduced. And the unnecessary line shape does not appear on the surface side of the branch breaker cover. Further, even though the number of branch breakers that can be arranged is the same, it is not necessary to have a plurality of types of branch breaker covers having different sizes, so that inventory management can be facilitated.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The present embodiment shows a configuration in which a different number of branch breakers are provided using a common base. FIG. 1 is a front view showing a distribution board 10, 10 'of the present embodiment, 2 is a plan view, FIG. 3 is a right side view, and FIG.
Similarly, FIG. 5 is a bottom view, and FIG. 5 is a front view showing a state in which the door 5 of the distribution board 10 ′ of the specification form 1 is removed.

First, the specification form 1 will be described.

The base 1 is formed by molding a synthetic resin and has a thin box shape having an opening at the front surface. A knockout portion 1a for the wiring insertion hole and a peripheral step portion 1b are provided.

The base 1 is, as shown in FIG. 5, a limiter knockout portion 42a which is a limiter space.
(Note that the limiter knockout part 42a is configured so that it can be knocked out according to a plurality of sizes that differ depending on the current capacity of the limiter and the electric power company.), The main breaker 2 and the branch breaker 3 are moved up and down at maximum. It is formed in such a size that it is possible to arrange 14 of them in two rows.

The knockout portions 1a are formed so as to be continuous with the upper surface and the bottom surface of the base, and a total of eight knockout portions 1a are arranged in parallel.

The peripheral step portion 1b is arranged on the front surface side of the base 1 and projects laterally. And the peripheral portion 1b
Can be brought into contact with a wall material such as a gypsum board when the base 1 is semi-embedded in the thin wall.

Further, although not shown, a distribution board unit having a main breaker 2 and a plurality of branch breakers 3 is provided in the electric component housing portion in the cover 1, and the main breaker 2 and the branch breaker 3 are Both are mounted on a metal chassis, which is screwed to the base.

The main breaker 2 is composed of an earth leakage breaker on the front surface of which an operating portion 21 for switching the switch by swinging operation is arranged.

The branch breaker 3 is a circuit breaker having a front surface provided with an operating portion 31 for switching a switch by a swinging operation.

The branch breakers 3 are arranged in two rows, each of which has 14 branches at the top and bottom, and are branched and connected in parallel to the main breaker 2. In addition, 100V or 200V depending on the rated voltage of the branch circuit via a bus bar (not shown).
It is formed so that you can select.

The cover 40 is formed by molding synthetic resin, and covers the opening of the base 1 except for the operation parts 21 and 31 of the required equipment such as the main breaker 2 and the branch breaker 3, and the charging part. Limiter cover 42, trunk breaker cover 43, branch breaker cover 4
4'is provided.

The cover 40 is removably arranged on the front surface of the base 1, and has a load display section 48 for displaying the name of the branch circuit or its main electric load name.

In the cover 40, a pair of locking claws 47 is formed on the left and right, and engages with a cover engaging portion (not shown) of the base 1 to fix the cover 40 in a state of covering the opening of the base 1. When the cover 40 is disengaged from the base 1, the engagement with the cover engaging portion can be released by pushing the locking claw 47.

The door 5 rotatably covers the front surface of the cover 40 by axially fixing both sides of the cover 40 to the cover 40.
In the state in which 0 is covered, it is locked to a door locking locking part (not shown).

Therefore, the distribution board 10 'of the specification form 1 is composed of the chassis 1, the cover 40, the main breaker 2, the 28 branch breakers 3, the door 5 and the like.

Next, a distribution board of the specification form 2 used for different specifications by using the base 1 of the distribution board 10 'shown in FIG. 5 will be described with reference to FIGS. 6, 7, 8, 9 and 10. 6 is a front view showing a state in which the door 5 of the distribution board 10 of the specification mode 2 is removed, FIG. 7 is a front view in which a limiter cover and the like are removed from the cover 4, and FIG. 8 is a cover 4 to the limiter cover. 42, a main breaker cover 43 and a branch breaker cover 44 are attached to the front view, FIG. 9 is a front view showing the cover 4, and FIG. 10 is an explanatory view showing a blank cover.

The specification form 2 uses the base 1 as described above. The same components as those of the specification form 1 are designated by the same reference numerals and the description thereof will be omitted.

The branch breakers 3 are arranged in two rows of twelve vertically, and are connected in parallel to the main breaker 2 in a branch manner and connected to the main breaker 2 via a bus bar (not shown) to reach 100 V or a voltage corresponding to the rated voltage of the branch circuit. It is formed so that 200 V can be selected.

The cover 4 is formed by molding synthetic resin, and as shown in FIG. 7, a cover body 4A having a rectangular opening 41 smaller than the opening of the base 1, and
As shown in FIG. 8, in the opening 41, a limiter cover 42 having a knockout portion 42a for a limiter, a main breaker cover 43 in which a window hole 43a facing the operation portion 21 of the main breaker 2 is formed, and 24 branch breakers 3 are provided. A branch breaker cover 44 in which a window hole 44a desired by the operation unit 31 is formed is provided.

Further, as shown in FIG. 9, the cover 4 is provided with a blank cover 45 so as to sandwich the branch breaker cover 44 with the main breaker cover 43. The blank cover 45 includes the limiter cover 42 and the main trunk. The breaker cover 43 and the branch breaker cover 44 are provided in the opening 41, and the space 4 as shown in FIG.
The opening 6 is provided so as to be orthogonal to the longitudinal direction of the opening 11 so as to close the opening 6.

Further, as shown in FIG. 10, the blank cover 45 is provided with a pair of upper and lower engaging portions 45a, 45a to be fitted into the edge portion 41a of the opening 41 of the cover 4, and further, one side side. It has a projecting portion 45b projecting toward one side. 10A is a front view, FIG. 10B is a side view, and FIG. 10C is a rear view.

In this usage mode 2, first, the opening 4 of the cover 4 is used.
1. The upper and lower sides of each of the limiter cover 42, the main breaker cover 43, and the branch breaker cover 44 are opened 41.
It is fitted and attached to the edge portion 41a of the. In this state, the main breaker cover 43 of the branch breaker cover 44
Although the space 46 is provided on the side opposite to the space 46, the space 46 is closed by providing the blank cover 45 in the space 46. In addition, this blank cover 45
Has a pair of engaging portions 45 on the edge portion 41a of the opening 41 so that the projecting portion 45b is provided on the branch breaker cover 44 side.
a and 45a are fitted and attached.

The door 5 is attached to the cover 4 thus formed by locking, and the cover 4 and the door 5 are provided so as to cover the opening of the chassis 1 in which the main breaker 2 and the 24 branch breakers 3 are provided. This forms the distribution board 10.

According to this embodiment, since it is not necessary to mold the branch breaker covers 44 and 44 'using the nest, the manufacturing cost can be reduced.

Further, since unnecessary line shapes do not appear on the surface side of the branch breaker covers 44, 44 ', the appearance can be made favorable.

Further, in the specification form 2, by using the branch breaker cover 44 and the blank cover 45, the size can be made equal to that of the branch breaker cover 44 'of the specification form 1, so that the branch breaker 3 which can be arranged can be provided. Since the branch breaker cover 44 can always be used when the number of circuits is 24, the branch breaker cover 44 can be easily managed.

Although the base 1 is a synthetic resin molded product in this embodiment, it may be a metal sheet metal product.
The base 1 may have a structure in which substantially the whole is embedded in a thin wall, or a structure in which a part of the front opening side is exposed from the thin wall to the outside.

The distribution board is not limited to the specifications of this embodiment, and in addition to the main breaker and the branch breaker, if necessary, a peak cut controller, a safety light, an arrester, a buzzer, a chime, a timer or an additional earth leakage breaker. Equipment can also be attached. Further, an expansion space for expanding these devices can be arranged in advance.

Furthermore, the distribution board can be equipped with auxiliary equipment such as a ground relay distribution board terminal, if necessary, in order to facilitate wiring to the equipment to be mounted.

In short, it goes without saying that the present invention is not limited to this embodiment.

[0047]

According to the present invention, since it is not necessary to mold the branch breaker cover using the nest, the manufacturing cost can be reduced, and an unnecessary line shape appears on the surface side of the branch breaker cover. Nor. Further, even though the number of branch breakers that can be arranged is the same, it is not necessary to have a plurality of types of branch breaker covers having different sizes, so that inventory management can be facilitated.

[Brief description of drawings]

FIG. 1 is a front view showing a distribution board 10 or 10 'of the present embodiment.

FIG. 2 is a plan view of the same.

[Figure 3] Similarly, right side view

[Figure 4] Similarly, bottom view

FIG. 5 is a front view showing a state in which a door 5 of a distribution board 10 ′ of specification form 1 is removed.

FIG. 6 is a front view showing a state in which a door 5 of a distribution board 10 of specification form 2 is removed.

FIG. 7 is a front view of the same cover 4 with a limiter-cover and the like removed.

FIG. 8 is a front view showing a state in which a limiter cover 42, a main breaker cover 43, and a branch breaker cover 4 are similarly attached to the cover 4.

FIG. 9 is a front view showing the cover 4 as well.

FIG. 10 is an explanatory view showing a blank cover.

[Explanation of symbols]

1 ... Base, 2 ... Main breaker, 3 ... Branch breaker, 4 ... Cover, 4A ... Cover body, 10 ... Distribution board,
43 ... Main breaker cover, 44 ... Branch breaker cover, 45 ... Blank cover

Claims (2)

[Claims] 1. A cover body having a rectangular opening; a main breaker cover provided so as to close a part of the opening and having a window hole facing at least an operation portion of the main breaker; A branch breaker cover which is provided so as to close a portion and has a window hole desired by at least a plurality of branch breaker operating portions; and a length of the opening even when the main breaker cover and the branch breaker cover are provided. A cover for a distribution board, comprising: a blank cover provided in the opening so as to close the space when a space orthogonal to the direction occurs in the opening. 2. A box-shaped resin base having an opening on one surface and having an electric component storage section formed therein; and an operating section for switching a switch accommodated in the electric component storage section. A main breaker that has, and a plurality of branch breakers that have an operation section for switching the switch; and a rectangular opening smaller than the opening provided in the base so as to cover the opening of the base. A main breaker cover provided with a window hole facing at least the operation portion of the main breaker and a branch breaker cover having a window hole desired by at least the operation portions of the branch breakers. Even if the formed cover and the main breaker cover and the branch breaker cover are provided, a space portion orthogonal to the longitudinal direction of the opening is generated in the opening. Expediently, a cover and a blank cover provided to the opening so as to close the space; panelboard, characterized by comprising the