JP2022189308A - Distribution board - Google Patents

Abstract

To provide a distribution board capable of improving workability during construction.SOLUTION: A distribution board includes: a base 110 on which a main breaker 40 and a branch breaker 50 are attached and which is formed with a first wiring port 14 for letting through electric power lines connected to the main breaker 40 and a second wiring port 15 for letting through electric power lines connected to branch breaker 50; and a cover 60 covering the base 110. In the front view of base 110, the base 110 is further formed with a communication part that communicates at least one of the first wiring port 14 and the second wiring port 15 with the external space around base 110 in the front view.SELECTED DRAWING: Figure 8

Description

The present disclosure relates to distribution boards.

In Patent Document 1, a body member positioned on the back side and a cover member attached to the body member are provided so as to cover a portion of the power distribution device disposed inside the body member, such as a handle, in an exposed state. , a distribution board in which a cover member is provided with a door that can be opened and closed so that the entire power distribution device is not exposed (closed state).

JP 2018-160992 A

By the way, in the distribution board, it is desired that the workability at the time of construction is improved.

Accordingly, the present disclosure provides a distribution board capable of improving workability during construction.

A distribution board according to an aspect of the present disclosure is a base on which a main breaker and a branch breaker are attached, and is connected to a first wiring port for passing a power line connected to the main breaker and the branch breaker. a base formed with a second wiring port through which a power line passes through; A communicating portion is formed that communicates between at least one of the mouths and an external space around the base in the front view.

According to one aspect of the present disclosure, it is possible to realize a distribution board capable of improving workability during construction.

FIG. 1 is a perspective view showing the appearance of a distribution board in a closed state according to Embodiment 1. FIG. 2 is a perspective view showing the appearance of the distribution board in the open state according to Embodiment 1. FIG. 3 is an exploded perspective view showing the configuration of the distribution board according to Embodiment 1. FIG. FIG. 4 is an enlarged view of the dashed line area in FIG. 5A and 5B are diagrams for explaining attachment of the holding member according to the first embodiment. FIG. 6 is a partial cross-sectional perspective view of the distribution board according to Embodiment 1 in an open state. FIG. FIG. 7 is a cross-sectional view of the dashed line area of FIG. 6 viewed from above. 8 is a perspective view showing a base according to a modification of Embodiment 1. FIG. FIG. 9 is an exploded perspective view showing the configuration of the distribution board according to the second embodiment. 10 is a front view showing a base according to Embodiment 2. FIG. 11 is a cross-sectional view of the base taken along line XI-XI shown in FIG. 10. FIG. FIG. 12 is a flow chart showing a mounting method for mounting the distribution board according to the second embodiment.

Hereinafter, embodiments will be specifically described with reference to the drawings.

It should be noted that the embodiments described below are all comprehensive or specific examples. Numerical values, shapes, components, arrangement positions and connection forms of components, steps (processes), order of steps (processes), and the like shown in the following embodiments are examples, and are not intended to limit the present disclosure. . For example, numerical values are not expressions that express only strict meanings, but expressions that include a substantially equivalent range, for example, a difference of several percent. Further, among the constituent elements in the following embodiments, constituent elements not described in independent claims will be described as optional constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Therefore, for example, scales and the like do not necessarily match in each drawing. Moreover, in each figure, substantially the same configurations are denoted by the same reference numerals, and overlapping descriptions are omitted or simplified.

In addition, in this specification and drawings, the X-axis, X-axis and Z-axis indicate three axes of a three-dimensional orthogonal coordinate system. In each embodiment, the X-axis direction is the thickness direction of the distribution board (the stacking direction of the constituent elements). Further, in this specification, “front view” means the case of viewing the distribution board along the X-axis direction (thickness direction of the distribution board), and “top view” means the case of viewing the distribution board along the Z-axis direction. Means if you look at the distribution board along. Also, the Z-axis direction is the vertical direction when the distribution board is attached to the construction material, but is not limited to this.

Also, in this specification, terms that indicate the relationship between elements such as parallel and orthogonal, terms that indicate the shape of elements such as rectangles and U-shapes, and numerical values and numerical ranges are strictly meaning only It is not an expression that expresses , but an expression that means that the difference is in a substantially equivalent range, for example, about several percent (for example, about 5%).

(Embodiment 1)
[1-1. Distribution board configuration]
A configuration of a distribution board according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a perspective view showing the appearance of a distribution board 1 according to the present embodiment in a closed state. FIG. 2 is a perspective view showing the appearance of the distribution board 1 according to the present embodiment in an open state.

As shown in FIGS. 1 and 2, the distribution board 1 has a door 70. By opening and closing the door 70, a part of the main breaker 40 and the branch breaker 50 (for example, an operation part including a handle etc.) is operated. It has an open state in which the part is exposed and a closed state in which the part is not exposed.

The distribution board 1 receives supply of power (system power) from a power system that is equipment of an electric power company or the like, and branches the system power for each of a plurality of branch circuits. The distribution board 1 is installed, for example, inside facilities that use electric power, such as houses, hospitals, factories, and buildings.

The configuration of the distribution board 1 will be described below with reference to FIGS. 3 to 7. FIG. FIG. 3 is an exploded perspective view showing the configuration of the distribution board 1 according to this embodiment.

As shown in FIG. 3 , the distribution board 1 includes a base 10 , a holding member 20 , a mount 30 , a main breaker 40 , a branch breaker 50 , a cover 60 and a door 70 . The housing of the distribution board 1 is configured by the base 10 and the cover 60 . The holding member 20, the mounting base 30, the main breaker 40, and the branch breaker 50 are housed in a housing. In this embodiment, the housing is box-shaped.

The base 10 is a plate-like member to which the main breaker 40 and the branch breaker 50 are attached. The base 10 is directly attached to the construction material. The base 10 is attached, for example, in contact with a wall (eg, gypsum board).

The base 10 is made of metal, such as galvanized steel plate or stainless steel. From the viewpoint of keeping costs down, the base 10 is preferably made of a galvanized steel plate. Although the base 10 is made of a conductive material in this way, a part of it may be made of an insulating material such as resin. Also, the base 10 may be, for example, a molded product partly formed of resin. Also, the base 10 may be a molded product entirely made of resin. The front view shape of the base 10 is, for example, a rectangular shape.

The base 10 has a body portion 11 , a first wall portion 12 and a second wall portion 13 .

The body portion 11 is a plate-like member to which the main breaker 40 and the branch breaker 50 are attached. When the distribution board 1 is attached to the construction material, the main body part 11 is attached so as to be in contact with the construction material. The body portion 11 is directly attached to the construction material. Further, the body portion 11 is formed with a first wiring port 14 and a second wiring port 15 which are openings for passing power lines.

A power line connected to the main breaker 40 is passed through the first wiring port 14 , and a power line connected to the branch breaker 50 is passed through the second wiring port 15 . The first wiring port 14 and the second wiring port 15 are not communicated with the external space of the base 10 when viewed from the front. It can also be said that the first wiring port 14 and the second wiring port 15 are closed openings. The position, size, and number of the first wiring port 14 and the second wiring port 15 are not particularly limited. Further, the external space means the space around the base 10 when the base 10 is viewed from the front.

The first wall portion 12 extends from both ends of the body portion 11 in the Y-axis direction (an example of the first direction, for example, the left-right direction when attached to a construction material) toward the cover 60 (X-axis plus direction). It is a plate-shaped member that is provided so as to protrude from the The pair of first wall portions 12 are arranged to face each other. The pair of first wall portions 12 are parallel to each other and, for example, are provided so as to be orthogonal to the main body portion 11 .

The second wall portion 13 extends from both ends of the body portion 11 in the Z-axis direction (an example of the second direction, e.g., the vertical direction when attached to a building material) toward the cover 60 (X-axis plus direction). It is a plate-shaped member that is provided so as to protrude from the The pair of second wall portions 13 are arranged to face each other. The pair of second wall portions 13 are parallel to each other and, for example, are provided so as to be orthogonal to the main body portion 11 .

The pair of first wall portions 12 and the pair of second wall portions 13 form a wall portion surrounding the outer circumference of the body portion 11 . The pair of first walls 12 and the pair of second walls 13 surround the walls of the cover 60 from the inside, for example, when the cover 60 is attached to the base 10 .

The length (second height) of the pair of second walls 13 in the X-axis direction is smaller than the length (first height) of the pair of first walls 12 in the X-axis direction, for example. The second height is, for example, less than or equal to half the first height, and may be, for example, less than or equal to ⅓. As a result, it is possible to secure a large working space during construction, and thus the workability is improved.

Note that the first height and the second height may be equal. Moreover, the pair of second wall portions 13 may not be provided among the pair of first wall portions 12 and the pair of second wall portions 13 .

The first height may be any length that allows the holding member 20 to be attached to the first wall portion 12 . Further, when the holding member 20 has a mechanism that allows the holding member 20 to be directly attached to the main body portion 11, the pair of first wall portions 12 and the pair of second wall portions 13 are not provided. good too. That is, the base 10 may be composed of only the main body portion 11 among the main body portion 11, the pair of first wall portions 12, and the pair of second wall portions 13. As shown in FIG.

The main body portion 11, the pair of first wall portions 12, and the pair of second wall portions 13 are, for example, integrally formed.

The holding member 20 is a member for holding the cover 60 . The holding member 20 further has a holding mechanism for holding the door 70 in the closed state. Holding member 20 according to the present embodiment has the holding mechanism and is characterized by holding cover 60 and door 70 respectively. The configuration of the holding member 20 will be described later.

In this embodiment, the holding member 20 and the base 10 are separate members, and the holding member 20 is fixed to the base 10, but the holding member 20 and the base 10 may be integrally formed.

The holding member 20 is made of, for example, a tough or elastic material. Moreover, the holding member 20 may be made of the same material as the door 70, for example. In this embodiment, the door 70 is made of resin. The resin is, for example, a nylon resin, but is not limited to this, and other resins may be used.

At least a portion of the holding member 20 is exposed in the open state. For example, as shown in FIG. 2 , the claw portion 21 that is part of the holding member 20 is exposed from the first opening 62 in the open state. Note that the holding portion 24 (see FIG. 2) provided on the claw portion 21 is an example of a holding mechanism.

Further, the holding members 20 are provided so as to sandwich the door 70 when viewed from the front. At least a part (for example, the holding portion 24) of the holding member 20 overlaps the door 70 in a front view.

Mounting base 30 is a fixed plate to which main breaker 40 and branch breaker 50 are fixed. Mounting base 30 has a configuration capable of fixing main breaker 40 and branch breaker 50 . A fixing method for fixing the main breaker 40 and the branch breaker 50 by the mount 30 is not particularly limited. The main breaker 40 and the branch breaker 50 are fixed to the mounting base 30 by fitting a projection provided on one of the mounting base 30, the main breaker 40 and the branch breaker 50, and a recess or a slit provided on the other. may be

Note that the mounting base 30 to which the main breaker 40 and the branch breaker 50 are fixed is also referred to as an internal device. The internal device is attached to the main body 11 by fastening members such as screws, for example.

The main breaker 40 is a breaker that stops the power supply from the power system when a current exceeding a predetermined current (for example, current based on the power determined in the contract with the power company) flows from the power system.

The branch breaker 50 is a breaker provided in each power line (branch circuit) connected to the distribution board 1 . A plurality of branch breakers 50 are provided. The branch breaker 50 stops power supply to the power line when an overcurrent flows in the power line connected to the branch breaker 50 .

Note that the distribution board 1 may include at least one of the master breaker 40 and the branch breaker 50 . In this case, at least one of the main breaker 40 and the branch breaker 50 is attached to the base 10 .

The cover 60 is a member that covers the base 10 and has openings (second opening 63 and third opening 64 ) that expose the operating portions of the main breaker 40 and the branch breaker 50 .

The cover 60 has projections 61 . The convex portion 61 is provided on the front surface of the cover 60 so as to protrude in the positive direction of the X-axis from near the center of the end portion in the Y-axis direction. The pair of protrusions 61 are provided facing each other so as to sandwich the second opening 63 and the third opening 64 in a front view. The pair of protrusions 61 are provided parallel to each other, for example. The pair of projections 61 has a trapezoidal shape when viewed in the Y-axis direction, but the shape is not limited to this.

The length of the pair of protrusions 61 in the Z-axis direction is longer than the lengths of the second opening 63 and the third opening 64 in the Z-axis direction. A first opening 62 is formed in each of the opposing surfaces of the pair of protrusions 61 . A portion of the holding member 20 (for example, the claw portion 21 ) for fixing the cover 60 to the base 10 is positioned in the first opening 62 . The cover 60 is fixed to the base 10 by engaging the claw portion 21 with the surface of the cover 60 at the first opening 62 .

The second opening 63 is an opening that exposes the operating portion of the main breaker 40 and has a position, shape, and size corresponding to the main breaker 40 . The third opening 64 is an opening that exposes the operating portion of each of the plurality of branch breakers 50 , and has a position, shape, and size corresponding to the plurality of branch breakers 50 . The third opening 64 collectively exposes the operating portions of the plurality of branch breakers 50 . The second opening 63 and the third opening 64 are examples of openings. Further, the operation unit may include a display unit that displays information such as the connection destination of the breaker.

The door 70 is rotatably attached to the cover 60 and opens and closes the second opening 63 and the third opening 64 . The door 70 covers the second opening 63 and the third opening 64 and is attached to the projection 61 of the cover 60 so as to be rotatable about the Y-axis direction. Although the details will be described later, the door 70 is held by the holding portion 24 (see FIG. 2) of the holding member 20 in the closed state.

In this embodiment, the door 70 is a door that opens downward. In other words, the door 70 is attached to the cover 60 so as to open downward. For example, the negative Z-axis side ends of the door 70 in the longitudinal direction are attached to the negative Z-axis side ends of the projections 61 by rod-like members such as pins. As a result, the door 70 can be rotatably attached to the convex portion 61 using a component having a simple structure such as a pin. The door 70 can be rotatably attached to the projection 61, for example, by a component smaller than the top-opening door.

When the distribution board 1 is open, the cover 60 restricts the rotation of the door 70 . For example, when viewed from the Y-axis plus side to the Y-axis minus side, the cover 60 restricts the clockwise rotation of the door 70 in the open state. For example, when the surface of the door 70 abuts against the surface of the cover 60, the rotation of the door 70 is restricted. In other words, the distribution board 1 does not have to include a dedicated component for restricting the rotation of the door 70 . Note that the door 70 may be a door that opens upward.

The door 70 has, for example, a rectangular shape when viewed from the front, but is not limited to this. Also, the door 70 is elongated in the Y-axis direction. The longitudinal direction of the door 70 and the alignment direction of the pair of holding members 20 are, for example, parallel.

Cover 60 and door 70 have electrical insulation. Cover 60 and door 70 are constructed of the same material. The cover 60 and the door 70 are made of resin, for example. For example, the door 70 may be a molded product (resin molded product). The resin is, for example, a polyethylene resin, but is not limited to this, and other resins may be used.

[1-2. Configuration of Holding Member]
Next, the configuration of the holding member 20 will be described with reference to FIGS. 4 to 7. FIG. FIG. 4 is an enlarged view of the dashed line region R4 in FIG. FIG. 5 is a diagram for explaining attachment of the holding member 20 according to the present embodiment. 4 shows the state after the holding member 20 is fixed to the base 10 (specifically, the first wall portion 12), and FIG. 5 shows the state before the holding member 20 is fixed to the base 10. show.

As shown in FIG. 4 , the holding member 20 has claw portions 21 , fitting portions 22 , and restricting portions 23 . A holding portion 24 is formed on the claw portion 21 . For example, the claw portion 21, the fitting portion 22, the restricting portion 23, and the holding portion 24 are integrally formed.

The claw portion 21 is a portion for fixing the cover 60 to the base 10 . The claw portion 21 fixes the cover 60 to the base 10 by contacting the cover 60 via the first opening 62 of the cover 60, for example.

The fitting portion 22 is a portion for fixing the holding member 20 to the first wall portion 12 . The fitting portion 22 has, for example, a concave portion formed on the side opposite to the claw portion 21 (the minus side of the X axis) when viewed from above. The recess is a recess for fixing the fitting portion 22 to the first wall portion 12 by press fitting, and has a length corresponding to the thickness of the first wall portion 12 (the length in the Y-axis direction). The fitting portion 22 has, for example, a U shape when viewed from above, but the shape is not limited to this.

The restricting portion 23 is positioned outside the claw portion 21 when the holding member 20 is fixed to the first wall portion 12 , and restricts the outward warping of the claw portion 21 . The restricting portion 23 is arranged to face the claw portion 21 and restricts the warping of the claw portion 21 by coming into contact with the claw portion 21 when the claw portion 21 is warped outward. For example, the restricting portion 23 may have the same length as the claw portion 21 in the X-axis direction, or may be provided parallel to the claw portion 21 . In addition, the regulation part 23 is not an essential component.

The holding part 24 is an example of a holding mechanism, and has a configuration for holding the door 70 in the closed state. The holding portion 24 is, for example, a projecting portion provided on the claw portion 21, and has, for example, an elongated shape in the Z-axis direction.

In this way, the holding member 20 has a structure for holding the door 70 in the closed state, in addition to the structure for fixing the cover 60 to the base 10, which is its original function.

As shown in FIG. 5 , the holding member 20 as described above is fixed to the first wall portion 12 . The holding member 20 is fixed to the first wall portion 12 by, for example, press-fitting the fitting portion 22 of the holding member 20 into the first wall portion 12 . Note that the holding member 20 is not limited to be fixed by press-fitting, and may be fixed to the first wall portion 12 by a fastening member such as a screw.

Next, the configuration of the holding portion 24 will be described with reference to FIGS. 6 and 7. FIG. FIG. 6 is a partial cross-sectional perspective view of the distribution board 1 according to the present embodiment in an open state. FIG. 7 is a cross-sectional view of the dashed line region R7 in FIG. 6 viewed from above. 6 and 7 show a cross-sectional perspective view and a cross-sectional view when the distribution board 1 is cut along a plane that passes through the door 70 and is parallel to the XY plane.

As shown in FIGS. 6 and 7, the claw portion 21 has a shape (for example, a hook shape) in which the tip protrudes inward (in the example of FIG. 6, the Y-axis negative side). The contact surface 25 contacts the surface of the cover 60 on the front side (X-axis plus side) to engage with the cover 60 . Thereby, the holding member 20 restricts the movement of the cover 60 . That is, the holding member 20 fixes the cover 60 to the base 10 .

The holding portion 24 formed on the claw portion 21 is provided on the inclined surface 26 on the door 70 side (X-axis plus side) from the contact surface 25 of the claw portion 21 . Specifically, the holding portion 24 is a protrusion that protrudes from the inclined surface 26 toward the door 70 (Y-axis minus side). The retainer 24 is a projection smaller than the projection that engages with the cover 60 .

Further, the door 70 has engaging portions 71 at ends (both ends) in the Y-axis direction, which engage with the holding portions 24 in the closed state. In the closed state, the engaging portion 71 is located at a position closer to the base 10 (X-axis minus side) than the holding portion 24 of the claw portion 21 and extends in a direction from the end toward the claw portion 21 (in the example of FIG. 7, the Y-axis positive direction). In the closed state, the holding portion 24 and the engaging portion 71 are in contact with each other.

Further, as shown in FIG. 6 , when the distribution board 1 is in the open state, the engaging portion between the claw portion 21 and the cover 60 is exposed. That is, the distribution board 1 can be visually recognized at the engaging portion in a state where it is attached to the construction material. In other words, in the distribution board 1, the engaging portion is located at a position visible in the open state. For example, by providing a marker in the region of the cover 60 that contacts the contact surface 25 of the claw portion 21, whether or not the claw portion 21 is firmly engaged can be determined by whether or not the marker can be seen (for example, the claw portion 21 can be seen). It is possible to determine whether the portion 21 is loosely caught. That is, the degree of engagement of the claw portion 21 can be confirmed simply by confirming whether or not the marker is visible. The marker may be formed, for example, by making the area of the cover 60 in contact with the contact surface 25 different in color from other areas.

[1-3. effects, etc.]
As described above, the distribution board 1 according to the present embodiment includes the base 10 to which at least one of the main breaker 40 and the branch breaker 50 is attached, and the second opening for exposing the operating portions of the main breaker 40 and the branch breaker 50. 63 and a third opening 64 (an example of an opening) are formed, a cover 60 that covers the base 10; a door 70 that is rotatably attached to the cover 60 and opens and closes the second opening 63 and the third opening 64; and a holding member 20 that holds the cover 60 . The holding member 20 has a holding portion 24 that holds the door 70 when the door 70 is in the closed state in which the second opening 63 and the third opening 64 are closed.

As a result, the cover 60 and the door 70 can be held by one member (holding member 20), so the number of parts can be reduced compared to the case where the cover 60 and the door 70 are held by different members. can be done. Therefore, the distribution board 1 can realize cost reduction.

The holding portion 24 is a projection formed on the holding member 20, and the door 70 has an engaging portion 71 that engages with the projection in the closed state.

Accordingly, the holding member 20 can hold the door 70 with a simple structure having projections.

Further, the holding member 20 has a claw portion 21 having a contact surface 25 that contacts the cover 60, and the projection is formed on an inclined surface 26 (an example of a surface) on the door 70 side from the contact surface 25 of the claw portion 21. is provided.

Thus, the door 70 can be held simply by providing the projection on the inclined surface 26 of the claw portion 21 .

At least part of the claw portion 21 is exposed in the open state.

As a result, whether or not the claw portion 21 is engaged with the cover 60, that is, whether or not the cover 60 is fixed to the base 10 can be easily confirmed even after the distribution board 1 is attached to the construction material. can. For example, it is possible to prevent the cover 60 from falling after the distribution board 1 is attached to the construction material, thereby improving safety in use.

Further, the door 70 is a downward-opening door, and its rotation is restricted by coming into contact with the cover 60 in the open state.

This makes it easier to maintain the open state than when the door 70 opens upward, so the parts for rotatably attaching the door 70 to the cover 60 can be simplified or miniaturized. can. This leads to cost reduction of the distribution board 1 .

Also, the base 10 is made of metal and is directly attached to the construction material.

As a result, compared to the case where the base 10 is made of resin or the like, the base 10 can be realized at a low cost and with a high strength.

Moreover, the holding member 20 and the base 10 may be separate members, and the holding member 20 may be fixed to the base 10 .

For example, if the base 10 is made of metal, complicated processing is required to form the holding member 20 of metal. In addition, there is a possibility that material picking will be poor (for example, the number of bases 10 that can be picked from the original plate will decrease). On the other hand, by forming the holding member 20 as a separate member from the base 10, it becomes possible to select the material and manufacturing method according to the shape of the holding member 20, which contributes to cost reduction.

Moreover, the holding member 20 and the base 10 may be integrally formed.

Since this eliminates the need to attach the holding member 20 to the base 10, the distribution board 1 can be manufactured easily. Moreover, since the number of parts can be reduced, the cost (manufacturing cost) can be further reduced.

Further, the door 70 may be made of resin.

Thereby, the door 70 can be easily formed.

Also, the holding member 20 may be made of the same material as the door 70 .

For example, if the holding member 20 and the door 70 are made of different materials, the difference in strength may cause problems such as abrasion of one of the holding member 20 and the door 70 due to friction during opening and closing operations. On the other hand, since the holding member 20 and the door 70 are made of the same material, a difference in strength is less likely to occur, so it is possible to suppress the occurrence of scraping or the like due to opening and closing operations.

(Modification of Embodiment 1)
The distribution board according to this modified example will be described below with reference to FIG. 8 . In addition, below, it demonstrates centering on difference with Embodiment 1, and abbreviate|omits or simplifies description about the content which is the same as that of Embodiment 1, or is similar. FIG. 8 is a perspective view showing the base 110 according to this modification. Below, a distribution board that improves workability during construction will be described.

As shown in FIG. 8, the distribution board according to this modification includes a base 110 instead of the base 10 of the distribution board 1 of the first embodiment. A base 110 according to this modified example has a first communicating portion 14a and a second communicating portion 15a in addition to the base 10 according to the first embodiment. Specifically, the body portion 111 is formed with a first communication portion 14a and a second communication portion 15a. Also, the base 110 according to this modification has a pair of second wall portions 113 instead of the pair of second wall portions 13 .

The first communication portion 14a is positioned between the first wiring port 14 and the external space in a front view, and connects the first wiring port 14 and the external space. The first communication portion 14a communicates the first wiring port 14 and the external space in a direction intersecting the insertion direction of the power line passing through the first wiring port 14 when viewed in the Y-axis direction. The first communication portion 14a is formed, for example, extending from the first wiring port 14 in the positive direction of the Z axis when viewed from the front.

The length of the first communicating portion 14a in the Y-axis direction is determined by, for example, the number and size of power lines connected to the main breaker 40 . For example, the length of the first communication portion 14a in the Y-axis direction is smaller than the length of the first wiring port 14 in the Y-axis direction. It can also be said that the first wiring port 14 is an opening that is not closed. In addition, it can be said that the first wiring port 14 is opened toward the external space when viewed from the front.

The second communication portion 15a is positioned between the second wiring port 15 and the external space in a front view, and connects the second wiring port 15 and the external space. The second communication portion 15a communicates the second wiring port 15 and the external space in a direction intersecting the insertion direction of the power line passing through the second wiring port 15 when viewed in the Y-axis direction. The second communication portion 15a is formed, for example, extending from the second wiring port 15 in the negative Z-axis direction when viewed from the front.

The length of the second communication portion 15a in the Y-axis direction is determined by, for example, the number and size of the power lines connected to the branch breaker 50 . For example, the length of the second communication portion 15a in the Y-axis direction is smaller than the length of the second wiring port 15 in the Y-axis direction. It can also be said that the second wiring port 15 is an opening that is not closed. In addition, it can be said that the second wiring port 15 is opened toward the external space when viewed from the front.

The length of the first communication portion 14a in the Y-axis direction may be the same as the length of the first wiring port 14 in the Y-axis direction. In this case, it can also be said that the first wiring port 14 is a notch formed in the base 110 . Also, the length of the second communication portion 15a in the Y-axis direction may be the same as the length of the second wiring port 15 in the Y-axis direction. In this case, it can also be said that the second wiring port 15 is a notch formed in the base 110 . At least one of the first wiring port 14 and the second wiring port 15 may be a notch formed in the base 110 . Moreover, although the planar view shape of the 1st communication part 14a and the 2nd communication part 15a is a rectangular shape, for example, it is not limited to this.

Each of the pair of second wall portions 113 is partially divided by the first communicating portion 14a or the second communicating portion 15a. In other words, each of the pair of second wall portions 113 is configured by walls that are provided apart from each other. For example, when viewed from above, the first communicating portion 14a and the second communicating portion 15a are formed at positions that do not overlap each other.

As described above, in the base 110 according to the present modification, when the base 110 is viewed from the front, communication portions are formed that communicate the first wiring port 14 and the second wiring port 15 with the external space of the base 110 . there is At least one of the first communicating portion 14a and the second communicating portion 15a should be formed.

Note that the base 110 may not have at least one of the pair of first walls 12 and the pair of second walls 113 . The base 110 may not have both the pair of first walls 12 and the pair of second walls 113, for example. For example, the base 110 may be flat.

When only one of the main breaker 40 and the branch breaker 50 is attached to the base 110, one of the first wiring port 14 and the first communicating portion 14a, and the second wiring port 15 and the second communicating portion 15a Only corresponding wiring ports and communicating portions may be formed in the base 110 .

As described above, the distribution board according to the present modification includes the base 110 to which the main breaker 40 and the branch breaker 50 are attached, the first wiring port 14 for passing the power line connected to the main breaker 40, and , a base 110 formed with a second wiring port 15 for passing a power line connected to the branch breaker 50 , and a cover 60 covering the base 110 . Further, the base 110 has a communicating portion that communicates between at least one of the first wiring port 14 and the second wiring port 15 in the front view of the base 110 and the external space around the base 110 in the front view. formed.

Thereby, the power line can be arranged in at least one of the first wiring port 14 and the second wiring port 15 via the communicating portion when constructing the distribution board. In other words, the operator does not need to perform the work of passing the power line through the loop-shaped wiring port in at least one of the first wiring port 14 and the second wiring port 15 . Therefore, it is possible to improve the workability in arranging the power lines during construction of the distribution board.

Further, in the front view, the base 110 is formed with a first communicating portion 14a that communicates the first wiring port 14 and the external space, and a second communicating portion 15a that communicates the second wiring port 15 and the external space. there is

Thereby, the power line can be arranged in each of the first wiring port 14 and the second wiring port 15 via the communicating portion when constructing the distribution board. Therefore, it is possible to further improve the workability in arranging the power lines during construction of the distribution board.

At least one of the first wiring port 14 and the second wiring port 15 is a notch formed in the base 110 .

This makes it easier to arrange the power line in at least one of the first wiring port 14 and the second wiring port 15 . Therefore, it is possible to further improve the workability in arranging the power lines during construction of the distribution board.

In addition, the base 110 includes a pair of first wall portions 12 protruding in a direction toward the cover 60 from ends in the left-right direction (an example of the first direction) and a pair of first wall portions 12 extending in the up-down direction (first direction). and a pair of second wall portions 113 protruding in the direction from the end portion of the second direction (an example of the second direction crossing the direction of ). The length of the second wall portion 113 in this direction may be smaller than the length of the first wall portion 12 in this direction.

Accordingly, since the length of the second wall portion 113 in this direction is small, it is possible to prevent the second wall portion 113 from becoming an obstacle during work such as wiring to the main breaker 40 and the branch breaker 50 . Therefore, it is possible to further improve the workability in arranging the power lines during construction of the distribution board.

In addition, the base 110 has a pair of first wall portions 12 (an example of wall portions) that protrude in the direction toward the cover 60 from the left and right ends in a state where the base 110 is attached to the construction material. It is not necessary to have a wall protruding in that direction from the end of the .

As a result, since there is no wall portion that interferes with work such as wiring to the main breaker 40 and the branch breaker 50, it is possible to further improve the workability of arranging the power lines during construction of the distribution board.

(Embodiment 2)
The distribution board according to the present embodiment will be described below with reference to FIGS. 9 to 12. FIG. In addition, below, it demonstrates centering on difference with Embodiment 1, and abbreviate|omits or simplifies description about the content which is the same as that of Embodiment 1, or is similar. In this embodiment, a distribution board that improves workability during construction will be described.

[2-1. Distribution board configuration]
First, the configuration of the distribution board according to the present embodiment will be described with reference to FIGS. 9 to 11. FIG. FIG. 9 is an exploded perspective view showing the configuration of distribution board 200 according to the present embodiment. FIG. 10 is a front view showing base 210 according to this embodiment. FIG. 11 is a cross-sectional view of the base 210 taken along line XI-XI shown in FIG.

As shown in FIG. 9, a distribution board 200 according to the present embodiment includes a base 210, a holding member 20, a mounting base 230, a master breaker 40, a branch breaker 50, a cover 60, a door 70, and a , and a seat member 280 . Distribution board 200 according to the present embodiment includes base 210 and mounting base 230 instead of base 10 and mounting base 30 according to the first embodiment, and further includes sheet member 280 . In addition, in the present embodiment, the holding member 20 is not limited to holding the door 70 . The door 70 may be held by a member other than the holding member 20 in the closed state.

The base 210 has a body portion 211 and a pair of first wall portions 12 . The body portion 211 and the pair of first wall portions 12 may be integrally formed or may be separate members.

The body portion 211 is an elongated member to which the main breaker 40 and the branch breaker 50 are attached. The body portion 211 is an example of a first portion.

An internal device is detachably attached to the body portion 211 . In other words, the body portion 211 has a configuration in which the internal device is detachable. The body portion 211 may be, for example, a crank-shaped rail. The body portion 211 may be, for example, a din rail. In addition, detachable means that the internal device can be attached to and detached from the body portion 211 without using a fastening member such as a screw, for example. For example, detachable means that the internal device can be attached to and detached from the main body 211 without using other members such as fastening members and tools such as drivers.

As shown in FIGS. 10 and 11, the body portion 211 has a flat plate portion 211a and a flange portion 211b.

The flat plate portion 211a connects the pair of first wall portions 12 . The flat plate portion 211a extends from one of the pair of first wall portions 12 to the other. The flat plate portion 211a is elongated in the Y-axis direction, for example.

The flange portions 211b are provided so as to protrude from both ends in the short direction of the flat plate portion 211a toward the Z-axis plus side. The flange portion 211b is L-shaped when viewed in the Y-axis direction.

The pair of first wall portions 12 has holes for attaching the base 210 to the construction material in the YZ plane portion (flat plate portion). The pair of first wall portions 12 are arranged so as to sandwich the flat plate portion 211a when viewed from the front. Further, similarly to the first embodiment, the holding member 20 may be fixed to the pair of first wall portions 12 . The pair of first wall portions 12 are, for example, L-shaped when viewed from the Z-axis direction (top view). The pair of first wall portions 12 is an example of the second portion.

The mount 230 is provided with an engaging portion (not shown) corresponding to the shape of the base 210 . The engagement portion may be, for example, a claw portion corresponding to the crank shape of the base 210 . In this embodiment, the engaging portion is a claw portion configured to be hooked on the flange portion 211b. As a result, the mounting base 230 can attach the internal device to the base 210 simply by engaging and disengaging the flange portion 211b and the claw portion without tightening or loosening a fastening member such as a screw. can be attached and detached freely.

In this manner, the internal device to which the main breaker 40 and the branch breaker 50 are attached is detachably attached to the main body portion 211 . That is, the internal device can be attached to and detached from the main body portion 211 while the main breaker 40 and the branch breaker 50 are attached.

The base 210 as described above has an H shape when viewed from the front. A sheet member 280 is provided in a region between the pair of first wall portions 12 where the main body portion 211 is not provided when viewed from the front. Note that the front view shape of the base 210 is not limited to the H shape.

The sheet member 280 is a sheet-shaped member that is arranged between the pair of first walls 12 in a front view and indicates the positions of the holes for power lines to be drilled in the construction material when the distribution board 200 is constructed. is. The sheet member 280 may be provided on the entire surface between the pair of first wall portions 12 in a front view. The sheet member 280 is, for example, transparent, but is not limited to this, and may be opaque. The sheet member 280 may be colored, white or black, for example. The sheet member 280 is vinyl-like. The sheet member 280 is made of a translucent resin or the like.

The sheet member 280 is fixed to the pair of first wall portions 12, for example. Moreover, the sheet member 280 remains provided on the base 210 even when the distribution board 200 is attached to the construction material. Sheet member 280 may remain attached to base 210 after installation.

As shown in FIG. 10, the sheet member 280 is provided with a first frame 281 and a second frame 282 that indicate the drilling area of the construction material. The first frame 281 and the second frame 282 (frame pattern) are formed, for example, by printing, but are not limited to this. The first frame 281 is a pattern for making a hole in the construction material through which the power line connected to the main breaker 40 is inserted. Also, the second frame 282 is a pattern for making a hole in the construction material through which the power line connected to the branch breaker 50 is inserted. The position and size of the first frame 281 and the second frame 282 can be specified from the mounting position of the internal device, the number of power lines to be inserted, and the like.

Further, the sheet member 280 may further include information such as a description of the first frame 281 and the second frame 282, or a description of the installation work, points to note, and work order. The information (for example, characters or pictures) is written so that it can be read when the base 210 fixed to the construction material is viewed from the front, for example.

The pattern for drilling holes in the construction material is not limited to the frame as long as it is a pattern that can be visually confirmed. The pattern may be, for example, changing the color of the hole area with other areas.

Note that the sheet member 280 may be a transfer sheet on which the positions of the holes are printed. The sheet member 280 may be configured to be able to transfer the first frame 281 and the second frame 282 to the construction material by applying stress such as pressure while in contact with the construction material.

In the distribution board 200 configured as described above, for example, when viewed from the back side (when viewed from the negative side of the X axis to the positive side of the X axis), a part of the internal device is visible. Note that it is not essential for the distribution board 200 to include the sheet member 280 .

[2-2. How to install the distribution board]
Next, a mounting method (construction method) for mounting the distribution board 200 to a construction material such as a wall will be described with reference to FIG. 12 . FIG. 12 is a flowchart showing a mounting method for mounting distribution board 200 according to the present embodiment. At the time of step S11, it is assumed that holes for power lines have not yet been made in the construction material.

As shown in FIG. 12, first, the base 210 provided with the sheet member 280 is fixed to the construction material (S11). In step S11, for example, only the base 210 and the sheet member 280 are fixed to the construction material. The fixing in step S11 is permanent fixing, but may be temporary fixing, for example.

Next, the sheet member 280 and the construction material are integrally formed to form a hole (S12). In step S12, a hole is formed through the sheet member 280 and the construction material using a drill or the like. For example, holes are formed along the first frame 281 and the second frame 282 to penetrate the sheet member 280 and the construction material. That is, the drilling process is performed while the base 210 is fixed to the construction material. In other words, the drilling process can be performed without temporarily fixing the base 210 to mark the drilling position on the construction material and without marking the construction material (for example, marking).

It should be noted that the sheet member 280 preferably has such strength that its shape is not deformed during drilling.

Next, the internal device is attached to the base 210 (S13). In step S13, for example, the mount 230 to which the main breaker 40 and the branch breaker 50 are attached is attached to the base 210 by one attachment operation.

Next, the main breaker 40 and the branch breaker 50 are wired (S14). Wiring is performed by connecting the power line from the hole formed in the construction material to one of the main breaker 40 and the branch breaker 50 . At this time, since the base 210 is H-shaped and can suppress contact between the power line and the base 210, the wiring work can be performed efficiently without the base 210 interfering with the wiring work. .

[2-3. effects, etc.]
As described above, in the distribution board 200 according to the present embodiment, the inner unit to which the main breaker 40 and the branch breaker 50 are attached is detachably attached to the base 210 .

For example, the base is temporarily fixed to the construction material, the holed part is marked on the construction material, the hole is drilled in the construction material after the base is removed, and the base is finally fixed after the drilling process is completed. Construction methods are known. In the case of performing such a construction method, conventionally, the base 210 in a state where the inner device is fixed is removed from the construction material, but there is a problem in workability due to the weight. On the other hand, since the distribution board 200 according to the present embodiment has a configuration in which the inner unit is detachably attached to the base 210, when performing the construction method, the base 210 alone can be removed from the construction material. Therefore, it is possible to suppress a decrease in workability related to the weight of the base when performing the construction method described above. In addition, an effect of reducing worker fatigue during construction can also be expected.

The base 210 includes a flat plate portion 211a (an example of a first portion) to which the main breaker 40 and the branch breaker 50 are attached, and a pair of first wall portions 12 (an example of a second portion) for attaching the base 210 to the building material. ) and has a pair of first wall portions 12 arranged to sandwich the flat plate portion 211a. The distribution board 200 further includes a sheet member 280 which is disposed between the pair of first walls 12 and indicates the positions of the holes for power lines to be drilled in the construction material when the distribution board 200 is constructed. Prepare.

Conventionally, the base is temporarily attached to the construction material, the perforated area is marked on the construction material, and after removing the base, the construction material is drilled, and after the completion of the drilling process, the base is permanently attached. Was. In other words, conventionally, a lot of work such as attachment and detachment of the base and work such as scribing has been performed. On the other hand, since the sheet member 280 is provided, it is only necessary to perform hole drilling along the positions of the holes indicated on the sheet member 280, and work such as marking can be omitted. Therefore, it is possible to improve the workability related to the drilling process of the construction material at the time of construction of the distribution board.

Moreover, the sheet member 280 is transparent.

As a result, the state of the construction materials can be checked through the sheet member 280 during the work, so that the work is easier than when the construction materials cannot be seen. Therefore, it is possible to further improve the workability related to the drilling process of the construction material at the time of construction of the distribution board.

Also, the sheet member 280 may be a transfer sheet on which the positions of the holes are printed.

Thus, by transferring the positions of the holes to the construction material, the positions of the holes can be easily indicated on the construction material.

In addition, the sheet member 280 further includes an explanation regarding construction.

As a result, the worker can perform the work while looking at the explanation, so that it is possible to save the trouble of confirmation. Therefore, workability is further improved.

(Other embodiments)
Although the embodiments and the like have been described above, the present disclosure is not limited to the above-described embodiments and the like.

For example, in the above-described embodiments and the like, an example of using a pin as a component for rotatably attaching the door to the cover has been described, but a rod-shaped molded product (for example, a rod-shaped resin member) may be used.

In addition, in the above embodiments and the like, the distribution board has been described as having a pair of holding members, but the number of holding members is not limited to two, and may be three or more.

Further, in each of the above-described embodiments and the like, an example in which the holding portion has an elongated shape in the Z-axis direction has been described, but the shape of the holding portion is not limited to this. For example, the holding portion may be a protrusion (for example, a dome-shaped protrusion), or such protrusions may be arranged side by side in the Z-axis direction.

Further, in the above embodiments and the like, an example in which the holding mechanism provided on the holding member has a convex shape has been described, but it may have a concave shape. In this case, the retaining mechanism provided on the door has a shape that engages with the concave retaining mechanism of the retaining member, and may be, for example, a convex retaining mechanism.

Further, in the above-described embodiment and the like, an example in which openings for exposing the main breaker and the branch breakers are formed in the cover has been described, but the openings need not be formed.

In addition, the order in which the steps in the flowcharts described in the above embodiment and the like are performed is for illustrative purposes in order to specifically describe the present disclosure, and orders other than the above may be used. The order of multiple steps may be changed.

In addition, forms obtained by applying various modifications that a person skilled in the art can conceive of the embodiments, etc., or realized by arbitrarily combining the components and functions of the embodiments without departing from the scope of the present disclosure. Also included in the present disclosure is the form of

INDUSTRIAL APPLICABILITY The present disclosure is useful for distribution boards provided with doors.

1, 200 distribution board 10, 110, 210 base 11, 111, 211 body portion 12 first wall portion 13, 113 second wall portion 14 first wiring port 14a first communication portion 15 second wiring port 15a second communication Part 20 Holding member 21 Claw part 22 Fitting part 23 Regulating part 24 Holding part 25 Contact surface 26 Inclined surface 30, 230 Mounting base 40 Main breaker 50 Branch breaker 60 Cover 61 Projection 62 First opening 63 Second opening 64 Third Opening 70 Door 71 Engagement Part 211a Flat Plate Part 211b Flange Part 280 Sheet Member 281 First Frame 282 Second Frame

Claims (11)

A base on which a main breaker and a branch breaker are attached, and has a first wiring port for passing a power line connected to the main breaker and a second wiring port for passing a power line connected to the branch breaker. and
and a cover covering the base,
The base is further formed with a communication portion that communicates between at least one of the first wiring port and the second wiring port when the base is viewed from the front and an external space around the base when the base is viewed from the front. There is a distribution board. In the front view, the base is formed with a first communicating portion that communicates the first wiring port and the external space, and a second communicating portion that communicates the second wiring port and the external space. The distribution board according to claim 1. The distribution board according to claim 1 or 2, wherein at least one of the first wiring port and the second wiring port is a notch formed in the base. The base includes a pair of first wall portions protruding in a direction toward the cover from an end portion in a first direction and an end portion in a second direction intersecting the first direction in a state where the base is attached to the construction material. and a pair of second wall portions protruding in the direction,
The distribution board according to any one of claims 1 to 3, wherein the length of the second wall portion in the direction is smaller than the length of the first wall portion in the direction. The base has a pair of wall portions projecting in a direction toward the cover from the left and right ends in a state of being attached to the construction material, and wall portions projecting in the above-mentioned direction from the up-down direction ends. The distribution board according to any one of claims 1 to 3, which does not have The distribution board according to any one of claims 1 to 5, wherein the internal unit to which the main breaker and the branch breaker are attached is detachably attached to the base. The base includes a first portion to which the main breaker and the branch breaker are attached, and a pair of second portions for attaching the base to a construction material, which are arranged to sandwich the first portion. a second portion;
Further, a sheet member disposed between the pair of second parts and indicating the positions of power line holes to be drilled in the construction material when constructing the distribution board is provided. 1. The distribution board according to item 1. The distribution board according to claim 7, wherein the sheet member is transparent. The distribution board according to claim 7 or 8, wherein the sheet member is a transfer sheet on which the positions of the holes are printed. 10. The distribution board according to any one of claims 7 to 9, wherein the sheet member further shows an explanation regarding construction. The distribution board according to any one of claims 1 to 10, wherein the base is made of metal and is directly attached to a construction material.

Images