Distribution board

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

Technical Field

[0001] The present disclosure relates to a distribution board.

Background Art

[0002] Patent Document 1 discloses a distribution board including a body member located on the back side and a cover member attached to the body member so as to cover a part such as a handle of electrical equipment disposed inside the body member with a part of the handle exposed, and the cover member is provided with an openable and closable door for making the entire electrical equipment not exposed (closed state).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a distribution board, it is desired to improve workability during construction.

[0005] Therefore, the present disclosure provides a distribution board capable of improving workability during construction.

Means for Solving the Problems

[0006] A distribution board according to an aspect of the present disclosure includes a base to which a main breaker and a branch breaker are attached, the base having 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 a cover for covering the base, and the base further has a communication portion formed in a front view of the base to communicate at least one of the first wiring port and the second wiring port with an external space around the base in the front view.

Effects of the Invention

[0007] According to one aspect of the present disclosure, a distribution board capable of improving workability during construction can be realized.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Modes for Carrying Out the Invention

[0009] Hereinafter, embodiments will be specifically described with reference to the drawings.

[0010] Note that all the embodiments described below show comprehensive or specific examples. The numerical values, shapes, components, arrangement positions and connection forms of the components, steps (processes), the order of steps (processes), etc. shown in the following embodiments are merely examples and are not intended to limit the present disclosure. For example, the numerical values are not expressions representing only strict meanings, but are expressions meaning a substantially equivalent range, for example, including a difference of about several percent. In addition, among the components in the following embodiments, the components not described in the independent claims are described as optional components.

[0011] Also, each figure is a schematic diagram and is not necessarily drawn precisely. Therefore, for example, the scales in each figure do not necessarily match. Also, in each figure, substantially the same configurations are denoted by the same reference numerals, and overlapping descriptions are omitted or simplified.

[0012] In this specification and the drawings, the X-axis, X-axis, and Z-axis indicate the 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 components). Also, in this specification, "front view" means the case of viewing the distribution board along the X-axis direction (the thickness direction of the distribution board), and "top view" means the case of viewing the distribution board along the Z-axis direction. Also, although the Z-axis direction is assumed to be the vertical direction when the distribution board is attached to the building material, it is not limited thereto.

[0013] Also, in this specification, terms indicating the relationship between elements such as parallel and orthogonal, terms indicating the shape of elements such as rectangular and U-shaped, as well as numerical values and numerical ranges are not expressions representing only strict meanings, but are expressions meaning a substantially equivalent range, for example, including a difference of about several percent (for example, about 5%).

[0014] (Embodiment 1) [1-1. Configuration of the distribution board] The configuration of the distribution board according to this embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view showing the appearance of the distribution board 1 according to this embodiment in a closed state. FIG. 2 is a perspective view showing the appearance of the distribution board 1 according to this embodiment in an open state.

[0015] As shown in FIGS. 1 and 2, the distribution board 1 has a door 70. By opening and closing the door 70, it has an open state in which a part of the main breaker 40 and the branch breaker 50 (for example, an operation part including a handle, etc.) is exposed, and a closed state in which the part is not exposed.

[0016] The distribution board 1 receives the supply of electric power (system electric power) from an electric power system which is equipment of an electric power company or the like, and branches the system electric power for each of a plurality of branch circuits. The distribution board 1 is installed, for example, inside a facility that uses electric power such as a house, a hospital, a factory, a building, etc.

[0017] Hereinafter, the configuration of the distribution board 1 will be further described with reference to FIGS. 3 to 7. FIG. 3 is an exploded perspective view showing the configuration of the distribution board 1 according to this embodiment.

[0018] As shown in FIG. 3, the distribution board 1 includes a base 10, a holding member 20, a mounting base 30, a main breaker 40, a branch breaker 50, a cover 60, and a door 70. The base 10 and the cover 60 constitute the housing of the distribution board 1. The holding member 20, the mounting base 30, the main breaker 40, and the branch breaker 50 are accommodated inside the housing. In this embodiment, the housing is box-shaped.

[0019] The base 10 is a plate-shaped member to which the main breaker 40 and the branch breaker 50 are attached. The base 10 is directly attached to the building material. The base 10 is attached, for example, in contact with a wall (for example, a gypsum board).

[0020] Base 10 is made of metal, for example, a galvanized steel sheet, stainless steel, etc. From the perspective of keeping costs low, base 10 is preferably made of a galvanized steel sheet. Although base 10 is thus made of a conductive material, a part thereof may be made of an insulating material such as resin. Further, base 10 may be, for example, a molded product in which the part is formed of resin. Further, base 10 may be a molded product entirely formed of resin. The front view shape of base 10 is, for example, rectangular.

[0021] Base 10 has a main body portion 11, a first wall portion 12, and a second wall portion 13.

[0022] The main 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 installation material, the main body portion 11 is attached so as to contact the installation material. The main body portion 11 is directly attached to the installation material. Further, the main body portion 11 is formed with a first wiring opening 14 and a second wiring opening 15 which are openings for passing power lines.

[0023] A power line connected to the main breaker 40 is inserted into the first wiring opening 14, and a power line connected to the branch breaker 50 is inserted into the second wiring opening 15. The first wiring opening 14 and the second wiring opening 15 are not in communication with the external space of the base 10 in a front view. It can also be said that the first wiring opening 14 and the second wiring opening 15 are closed openings. Note that the positions, sizes, and numbers of the first wiring opening 14 and the second wiring opening 15 are not particularly limited. Further, the external space means the space around the base 10 in a front view of the base 10.

[0024] The first wall portion 12 is a plate-like member provided so as to project in the direction (X-axis plus direction) from both ends of the main body portion 11 in the Y-axis direction (an example of the first direction, for example, the left-right direction in a state of being attached to the installation material) toward the cover 60. A 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 are provided, for example, so as to be orthogonal to the main body portion 11.

[0025] The second wall portion 13 is a plate-like member provided to protrude in the direction (X-axis positive direction) from both ends of the main body portion 11 in the Z-axis direction (an example of the second direction, for example, the vertical direction in a state of being attached to a building material) toward the cover 60. 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 are provided, for example, so as to be orthogonal to the main body portion 11.

[0026] A wall portion surrounding the outer periphery of the main body portion 11 is formed by the pair of first wall portions 12 and the pair of second wall portions 13. The pair of first wall portions 12 and the pair of second wall portions 13 surround the wall portion of the cover 60 from the inside, for example, in a state where the cover 60 is attached to the base 10.

[0027] The length in the X-axis direction (second height) of the pair of second wall portions 13 is smaller than the length in the X-axis direction (first height) of the pair of first wall portions 12, for example. The second height is, for example, half or less of the first height, and may be, for example, 1 / 3 or less. Thereby, a working space during construction can be widened, so workability is improved.

[0028] Note that the first height and the second height may be equal. Also, among the pair of first wall portions 12 and the pair of second wall portions 13, the pair of second wall portions 13 may not be provided.

[0029] The first height only needs to be a length at which the holding member 20 can be attached to the first wall portion 12. Also, when the holding member 20 has a mechanism by which the holding member 20 can be directly attached to the main body portion 11, each of the pair of first wall portions 12 and the pair of second wall portions 13 may not be provided. 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.

[0030] The main body portion 11, the pair of first wall portions 12, and the pair of second wall portions 13 are integrally formed, for example.

[0031] The holding member 20 is a member for holding the cover 60. Further, the holding member 20 further has a holding mechanism for holding the door 70 in the closed state. The holding member 20 according to the present embodiment has the holding mechanism and is characterized by holding each of the cover 60 and the door 70. The configuration of the holding member 20 will be described later.

[0032] In the present 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.

[0033] The holding member 20 is made of, for example, a material having toughness or elasticity. Further, the holding member 20 may be made of, for example, the same material as the door 70. In the present embodiment, the door 70 is made of resin. The resin is, for example, nylon resin, but is not limited thereto, and other resins may be used.

[0034] Further, in the open state, at least a part of the holding member 20 is exposed. For example, as shown in FIG. 2, in the open state, a claw portion 21, which is a part of the holding member 20, is exposed from the first opening 62. Note that the holding portion 24 (see FIG. 2) provided on the claw portion 21 is an example of the holding mechanism.

[0035] Further, the holding member 20 is provided so as to sandwich the door 70 in a front view. In a front view, at least a part (for example, the holding portion 24) of the holding member 20 overlaps the door 70.

[0036] The mounting base 30 is a fixing plate to which the main breaker 40 and the branch breaker 50 are fixed. The mounting base 30 has a configuration capable of fixing the main breaker 40 and the branch breaker 50. The fixing method by which the mounting base 30 fixes the main breaker 40 and the branch breaker 50 is not particularly limited. The main breaker 40 and the branch breaker 50 may be fixed to the mounting base 30 by fitting a protrusion provided on one of the mounting base 30, the main breaker 40, and the branch breaker 50 with a recess or a slit provided on the other.

[0037] The mounting base 30 to which the main breaker 40 and the branch breaker 50 are fixed is also referred to as the inner unit. The inner unit is attached to the main body 11 by fastening members such as screws.

[0038] The main breaker 40 is a breaker that stops the supply of power from the power system when a current exceeding a predetermined current (for example, a current based on the power stipulated in the contract with the power company) flows from the power system.

[0039] 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 the supply of power to the power line when an overcurrent flows through the power line connected to the branch breaker 50.

[0040] The distribution board 1 only needs to include at least one of the main 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.

[0041] The cover 60 is a member that covers the base 10 and has openings (the second opening 63 and the third opening 64) that expose the operating portions of the main breaker 40 and the branch breaker 50.

[0042] The cover 60 has convex portions 61. The convex portions 61 are provided so as to protrude in the positive X-axis direction from near the center of the end portion in the Y-axis direction on the front surface of the cover 60. A pair of convex portions 61 are provided to face each other so as to sandwich the second opening 63 and the third opening 64 in a front view. The pair of convex portions 61 are provided parallel to each other, for example. The pair of convex portions 61 are trapezoidal when viewed in the Y-axis direction, but the shape is not limited to this.

[0043] The length of the pair of convex portions 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. Further, a first opening 62 is formed on each of the opposing surfaces of the pair of convex portions 61. A part (for example, the claw portion 21) of the holding member 20 for fixing the cover 60 to the base 10 is located in the first opening 62. By the claw portion 21 engaging with the surface of the cover 60 in the first opening 62, the cover 60 is fixed to the base 10.

[0044] The second opening 63 is an opening for exposing 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 for exposing the operating portions 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 exposes the operating portions of the plurality of branch breakers 50 collectively. Note that the second opening 63 and the third opening 64 are examples of openings. Further, the operating portion may include a display portion on which indications such as the connection destination of the breaker are made.

[0045] 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 rotatably attached to the convex portion 61 of the cover 60 with the Y-axis direction as the rotation axis. Although 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.

[0046] In the present embodiment, the door 70 is a downward-opening door. In other words, the door 70 is attached to the cover 60 so as to be downward-opening. The door 70 is attached, for example, to the minus-Z-axis ends of the convex portion 61 by rod-shaped members such as pins at the minus-Z-axis ends of both ends in the longitudinal direction. Thereby, for example, the door 70 can be rotatably attached to the convex portion 61 by a simple-structured part such as a pin. The door 70 can be rotatably attached to the convex portion 61 by a smaller part than, for example, an upward-opening door.

[0047] When the distribution board 1 is in the open state, the rotation of the door 70 is restricted by the cover 60. For example, when viewed from the positive Y-axis side to the negative Y-axis side, in the open state, the clockwise rotation of the door 70 is restricted by the cover 60. For example, the rotation of the door 70 is restricted by the surface of the door 70 coming into contact with the surface of the cover 60. That is, the distribution board 1 does not necessarily need to be provided with a dedicated component for restricting the rotation of the door 70. Note that the door 70 may be an upward-opening door.

[0048] The door 70, for example, has a rectangular shape when viewed from the front, but is not limited thereto. Also, the door 70 is elongated in the Y-axis direction. The elongated direction of the door 70 and the arrangement direction of the pair of holding members 20 are, for example, parallel.

[0049] The cover 60 and the door 70 have electrical insulation properties. The cover 60 and the door 70 are made of the same material. The cover 60 and the door 70 are, for example, made of resin. For example, the door 70 may be a molded product (resin molded product). The resin is, for example, polyethylene resin, but is not limited thereto, and other resins may be used.

[0050] [1-2. Configuration of the Holding Member] Subsequently, the configuration of the holding member 20 will be described with reference to FIGS. 4 to 7. FIG. 4 is a diagram showing an enlarged view of the broken line area R4 in FIG. 3. FIG. 5 is a diagram for explaining the attachment of the holding member 20 according to the present embodiment. FIG. 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.

[0051] As shown in FIG. 4, the holding member 20 has a claw portion 21, a fitting portion 22, and a restricting portion 23. Also, a holding portion 24 is formed on the claw portion 21. The claw portion 21, the fitting portion 22, the restricting portion 23, and the holding portion 24 are, for example, integrally formed.

[0052] The claw portion 21 is a part for fixing the cover 60 to the base 10. The claw portion 21 fixes the cover 60 to the base 10 by abutting against the cover 60 through, for example, the first opening 62 of the cover 60.

[0053] The fitting portion 22 is a part for fixing the holding member 20 to the first wall portion 12. The fitting portion 22 has, for example, a recess formed on the side opposite to the claw portion 21 (the negative X-axis side) when viewed from above. The recess is a dent for fixing the fitting portion 22 to the first wall portion 12 by press-fitting, and has a length corresponding to the thickness (length in the Y-axis direction) of the first wall portion 12. The fitting portion 22 is, for example, U-shaped when viewed from above, but the shape is not limited to this.

[0054] The restricting portion 23 is located outside the claw portion 21 in a state where 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 abutting against the claw portion 21 when the claw portion 21 warps outward. The restricting portion 23 may have, for example, the same length as the claw portion 21 in the X-axis direction, or may be provided in parallel with the claw portion 21. Note that the restricting portion 23 is not an essential configuration.

[0055] The holding portion 24 is an example of a holding mechanism and has a configuration for holding the door 70 in a closed state. The holding portion 24 is, for example, a protruding portion provided on the claw portion 21 and has, for example, an elongated shape in the Z-axis direction.

[0056] As described above, in addition to the configuration for fixing the cover 60, which is its original function, to the base 10, the holding member 20 has a configuration for holding the door 70 in a closed state.

[0057] 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, for example, by 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 being fixed by press-fitting, and may be fixed to the first wall portion 12 by a fastening member such as a screw.

[0058] Next, the configuration of the holding portion 24 will be described with reference to FIGS. 6 and 7. FIG. 6 is a partial cross-sectional perspective view of the distribution board 1 in the open state according to the present embodiment. FIG. 7 is a cross-sectional view of the broken line area R7 in FIG. 6 as viewed from above. Note that FIGS. 6 and 7 show a cross-sectional perspective view and a cross-sectional view when the distribution board 1 is cut by a plane passing through the door 70 and parallel to the XY plane.

[0059] 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 minus Y-axis side), and the contact surface 25 of the protruding protrusion contacts the surface on the front side (the plus X-axis side) of the cover 60, thereby engaging 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.

[0060] The holding portion 24 formed on the claw portion 21 is provided on the inclined surface 26 on the door 70 side (the plus X-axis side) with respect to the contact surface 25 in the claw portion 21. Specifically, the holding portion 24 is a protrusion that protrudes from the inclined surface 26 toward the door 70 side (the minus Y-axis side). The holding portion 24 is a protrusion smaller than the protrusion that engages with the cover 60.

[0061] Further, the door 70 has engaging portions 71 that engage with the holding portion 24 in the closed state at both ends in the Y-axis direction. The engaging portions 71 are provided so as to protrude in the direction from the end portion toward the claw portion 21 (in the example of FIG. 7, the plus Y-axis direction) at a position on the base 10 side (the minus X-axis side) with respect to the holding portion 24 of the claw portion 21 in the closed state. In the closed state, the holding portion 24 and the engaging portion 71 are in contact with each other.

[0062] Also, as shown in FIG. 6, in the open state of the distribution board 1, the engaging portion between the claw portion 21 and the cover 60 is exposed. That is, in the state where the distribution board 1 is attached to the installation material, it is possible to visually recognize the engaging portion. 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 abuts against the abutting surface 25 of the claw portion 21, it is possible to determine whether the claw portion 21 is firmly engaged (for example, whether the catch of the claw portion 21 is loose) based on whether the marker is visible. That is, by simply checking whether the marker is visible, the engagement degree of the claw portion 21 can be confirmed. The marker may be formed, for example, by making the color of the region of the cover 60 that abuts against the abutting surface 25 different from that of other regions.

[0063] [1-3. Effects, etc.] As described above, the distribution board 1 according to the present embodiment includes a base 10 to which at least one of the main breaker 40 and the branch breaker 50 is attached, a second opening 63 and a third opening 64 (an example of an opening) that expose the operating portions of the main breaker 40 and the branch breaker 50, 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. And the holding member 20 has a holding portion 24 that holds the door 70 when the door 70 is in a closed state where it closes the second opening 63 and the third opening 64.

[0064] Thereby, since the cover 60 and the door 70 can be held by one member (holding member 20), the number of parts can be reduced as compared with the case where the cover 60 and the door 70 are held by different members. Therefore, the distribution board 1 can be made low-cost.

[0065] Also, the holding portion 24 is a protrusion formed on the holding member 20, and the door 70 has an engaging portion 71 that engages with the protrusion in the closed state.

[0066] As a result, the holding member 20 can hold the door 70 with a simple configuration such as having protrusions.

[0067] Further, the holding member 20 has a claw portion 21 having a contact surface 25 that contacts the cover 60, and the protrusion is provided on an inclined surface 26 (an example of a surface) on the door 70 side from the contact surface 25 in the claw portion 21.

[0068] As a result, the door 70 can be held only by providing the protrusion on the inclined surface 26 of the claw portion 21.

[0069] Also, at least a part of the claw portion 21 is exposed in the open state.

[0070] As a result, it is possible to easily confirm whether the claw portion 21 is engaged with the cover 60, that is, whether the cover 60 is fixed to the base 10, even after the distribution board 1 is attached to the construction material. For example, after the distribution board 1 is attached to the construction material, it is possible to suppress the cover 60 from falling, so that the safety in use can be improved.

[0071] Also, the door 70 is a downward-opening door, and its rotation is restricted by contacting the cover 60 in the open state.

[0072] As a result, compared with the case where the door 70 opens upward, it becomes easier to maintain the open state, so that the components for rotatably attaching the door 70 to the cover 60 can be simplified or miniaturized. This leads to a cost reduction of the distribution board 1.

[0073] Also, the base 10 is made of metal and is directly attached to the construction material.

[0074] As a result, a base 10 with low cost and high strength can be realized compared with the case where the base 10 is formed of resin or the like.

[0075] Further, the holding member 20 and the base 10 are separate members, and the holding member 20 may be fixed to the base 10.

[0076] For example, when the base 10 is formed of metal, complex processing is required to configure the holding member 20 of metal. Also, the material yield may deteriorate (for example, the number of bases 10 taken from the original plate decreases). On the other hand, by making the holding member 20 a separate member from the base 10, it becomes possible to select a material and a manufacturing method according to the shape of the holding member 20 and the like, contributing to cost reduction.

[0077] Further, the holding member 20 and the base 10 may be integrally formed.

[0078] Thereby, it becomes unnecessary to attach the holding member 20 to the base 10, so that the distribution board 1 can be easily manufactured. Also, the number of parts can be reduced, so that further cost (manufacturing cost) reduction is possible.

[0079] Further, the door 70 may be made of resin.

[0080] Thereby, the door 70 can be easily formed.

[0081] Further, the holding member 20 may be made of the same material as the door 70.

[0082] For example, if the holding member 20 and the door 70 are made of different materials, problems such as one of the holding member 20 and the door 70 being worn due to friction during the opening and closing operation may occur due to the difference in strength. On the other hand, by configuring the holding member 20 and the door 70 with the same material, a difference in strength is less likely to occur, so that it is possible to suppress the occurrence of wear due to the opening and closing operation.

[0083] (Modification of Embodiment 1) Hereinafter, the distribution board according to this modified example will be described with reference to FIG. 8. In the following, the description will focus on the differences from the first embodiment, and the description of the same or similar content as the first embodiment will be omitted or simplified. FIG. 8 is a perspective view showing the base 110 according to this modified example. Hereinafter, a distribution board that improves workability during construction will be described.

[0084] As shown in FIG. 8, the distribution board according to this modified example includes a base 110 in place of the base 10 of the distribution board 1 in the first embodiment. The base 110 according to this modified example is further formed with a first communication portion 14a and a second communication portion 15a in the base 10 according to the first embodiment. Specifically, the first communication portion 14a and the second communication portion 15a are formed in the main body portion 111. In addition, the base 110 according to this modified example has a pair of second wall portions 113 instead of the pair of second wall portions 13.

[0085] The first communication portion 14a is located 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 from the Y-axis direction. The first communication portion 14a is formed, for example, to extend in the +Z-axis direction from the first wiring port 14 in a front view.

[0086] The length of the first communication portion 14a in the Y-axis direction is determined, for example, by the number and size of the 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 open opening that is not closed. Also, it can be said that the first wiring port 14 is open toward the external space in a front view.

[0087] The second communication part 15a is located 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. When viewed from the Y-axis direction, the second communication part 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. The second communication part 15a is formed, for example, to extend in the negative Z-axis direction from the second wiring port 15 in a front view.

[0088] The length of the second communication part 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 part 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 open opening that is not closed. Also, it can be said that the second wiring port 15 is open toward the external space in a front view.

[0089] Note that the length of the first communication part 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 part 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. Also, the planar view shapes of the first communication part 14a and the second communication part 15a are, for example, rectangular, but are not limited to this.

[0090] Each of the pair of second wall parts 113 is partially divided by the first communication part 14a or the second communication part 15a. That is, each of the pair of second wall parts 113 is composed of walls provided separately. Note that, for example, when viewed from above, the first communication part 14a and the second communication part 15a are formed at positions that do not overlap each other.

[0091] Thus, in the base 110 according to this modification example, in a front view of the base 110, a communication portion that communicates each of the first wiring port 14 and the second wiring port 15 with the external space of the base 110 is formed. Note that at least one of the first communication portion 14a and the second communication portion 15a may be formed.

[0092] Note that the base 110 may not have at least one of the pair of first wall portions 12 and the pair of second wall portions 113. For example, the base 110 may not have both the pair of first wall portions 12 and the pair of second wall portions 113. For example, the base 110 may be flat.

[0093] Note that when only one of the main breaker 40 and the branch breaker 50 is attached to the base 110, only the wiring port and the communication portion corresponding to the one of the first wiring port 14 and the first communication portion 14a, and the second wiring port 15 and the second communication portion 15a may be formed in the base 110.

[0094] As described above, the distribution board according to this modification example includes a base 110 to which the main breaker 40 and the branch breaker 50 are attached, the base 110 having a first wiring port 14 for passing a power line connected to the main breaker 40 and a second wiring port 15 for passing a power line connected to the branch breaker 50, and a cover 60 that covers the base 110. And in the base 110, further, in a front view of the base 110, a communication portion that communicates at least one of the first wiring port 14 and the second wiring port 15 with the external space around the base 110 in the front view is formed.

[0095] Thereby, at the time of installing the distribution board, a power line can be arranged at at least one of the first wiring port 14 and the second wiring port 15 through the communication portion. That is, the operator does not need to perform the work of passing the power line through the loop-shaped wiring port at at least one of the first wiring port 14 and the second wiring port 15. Therefore, the workability regarding the arrangement of the power line at the time of installing the distribution board can be improved.

[0096] Further, in the base 110, in a front view, a first communication portion 14a that communicates the first wiring port 14 and the external space, and a second communication portion 15a that communicates the second wiring port 15 and the external space are formed.

[0097] Thereby, when installing the distribution board, power lines can be arranged at the first wiring port 14 and the second wiring port 15 through the communication portions. Therefore, the workability regarding the arrangement of power lines during the installation of the distribution board can be further improved.

[0098] Further, at least one of the first wiring port 14 and the second wiring port 15 is a notch formed in the base 110.

[0099] Thereby, it becomes easier to arrange power lines at at least one of the first wiring port 14 and the second wiring port 15. Therefore, the workability regarding the arrangement of power lines during the installation of the distribution board can be further improved.

[0100] Further, in a state where the base 110 is attached to the building material, the base 110 has a pair of first wall portions 12 that protrude in a direction from an end in the left - right direction (an example of the first direction) toward the cover 60, and a pair of second wall portions 113 that protrude in a direction from an end in the up - down direction (an example of a second direction intersecting the first direction). And the length of the second wall portion 113 in the said direction may be smaller than the length of the first wall portion 12 in the said direction.

[0101] Thereby, since the length of the second wall portion 113 in the said direction is small, it is possible to suppress the second wall portion 113 from getting in the way during work such as wiring to the main breaker 40 and the branch breaker 50. Therefore, the workability regarding the arrangement of power lines during the installation of the distribution board can be further improved.

[0102] Further, in a state where the base 110 is attached to the building material, the base 110 has a pair of first wall portions 12 (an example of a wall portion) that protrude in a direction from an end in the left - right direction toward the cover 60, and may not have a wall portion that protrudes in a direction from an end in the up - down direction.

[0103] As a result, there is no wall portion that gets in the way during operations such as wiring to the main breaker 40 and the branch breaker 50, so the workability regarding the arrangement of power lines during the installation of the distribution board can be further improved.

[0104] (Embodiment 2) Hereinafter, the distribution board according to the present embodiment will be described with reference to FIGS. 9 to 12. In the following, the description will focus on the differences from Embodiment 1, and the description of the same or similar content as in Embodiment 1 will be omitted or simplified. In the present embodiment, a distribution board with improved workability during installation will be described.

[0105] [2-1. Configuration of the distribution board] First, the configuration of the distribution board according to the present embodiment will be described with reference to FIGS. 9 to 11. FIG. 9 is an exploded perspective view showing the configuration of the distribution board 200 according to the present embodiment. FIG. 10 is a front view showing the base 210 according to the present embodiment. FIG. 11 is a cross-sectional view of the base 210 taken along the line XI-XI shown in FIG. 10.

[0106] As shown in FIG. 9, the distribution board 200 according to the present embodiment includes a base 210, a holding member 20, a mounting base 230, a main breaker 40, a branch breaker 50, a cover 60, a door 70, and a seat member 280. The distribution board 200 according to the present embodiment includes a base 210 and a mounting base 230 in place of the base 10 and the mounting base 30 according to Embodiment 1, and further includes a seat member 280. Note that 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 different from the holding member 20 in the closed state.

[0107] The base 210 has a main body portion 211 and a pair of first wall portions 12. The main body portion 211 and the pair of first wall portions 12 may be integrally formed or may be separate members.

[0108] The main body part 211 is a long member to which the main breaker 40 and the branch breaker 50 are attached. The main body part 211 is an example of the first part.

[0109] An inner device is detachably attached to the main body part 211. That is, the main body part 211 has a configuration in which the inner device can be detachably attached. The main body part 211 may be, for example, a crank-shaped rail. The main body part 211 may be, for example, a DIN rail. Note that being detachably attached means that the inner device can be attached to and detached from the main body part 211 without using fastening members such as screws. For example, being detachably attached can also mean that the inner device can be attached to and detached from the main body part 211 without using other members such as fastening members and tools such as drivers.

[0110] As shown in FIGS. 10 and 11, the main body part 211 has a flat plate part 211a and a flange part 211b.

[0111] The flat plate part 211a connects a pair of first wall parts 12. The flat plate part 211a extends from one of the pair of first wall parts 12 to the other. The flat plate part 211a is, for example, long in the Y-axis direction.

[0112] The flange part 211b is provided so as to protrude from both ends in the short side direction of the flat plate part 211a toward the positive Z-axis side. The flange part 211b is L-shaped when viewed from the Y-axis direction.

[0113] The pair of first wall parts 12 has holes for attaching the base 210 to the building material in a YZ plane portion (flat plate-like portion). The pair of first wall parts 12 are arranged so as to sandwich the flat plate part 211a in a front view. Also, similar to Embodiment 1, the holding member 20 may be fixed to the pair of first wall parts 12. The pair of first wall parts 12 are, for example, L-shaped when viewed from the Z-axis direction (top view). The pair of first wall parts 12 are an example of the second part.

[0114] The mounting base 230 is provided with an engaging portion (not shown) corresponding to the shape of the base 210. The engaging portion may be, for example, a claw portion corresponding to the crank shape of the base 210. In the present embodiment, the engaging portion is a claw portion configured to be hooked on the flange portion 211b. Thereby, the mounting base 230 can freely attach and detach the internal unit to and from the base 210 simply by engaging or disengaging the flange portion 211b and the claw portion without tightening or loosening a fastening member such as a screw.

[0115] In this way, the internal unit 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 unit can be attached to and detached from the main body portion 211 with the main breaker 40 and the branch breaker 50 attached.

[0116] The base 210 as described above is H-shaped in a front view. And in a front view, a sheet member 280 is provided in a region between the pair of first wall portions 12 and in a region where the main body portion 211 is not provided. Note that the front view shape of the base 210 is not limited to the H shape.

[0117] The sheet member 280 is a sheet-like member that is disposed between the pair of first wall portions 12 in a front view and shows the position of a hole for passing an electric wire to be opened in a construction material during the installation of the distribution board 200. 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 thereto and may be opaque. The sheet member 280 may be, for example, colored, or may be white or black. The sheet member 280 is in a vinyl form. The sheet member 280 is formed of a resin having translucency or the like.

[0118] The sheet member 280 is fixed to the pair of first wall portions 12, for example. Also, the sheet member 280 remains provided on the base 210 even when the distribution board 200 is attached to the construction material. The sheet member 280 may remain attached to the base 210 even after construction.

[0119] As shown in FIG. 10, on the sheet member 280, a first frame 281 and a second frame 282 indicating the drilling area of the building material are described. The first frame 281 and the second frame 282 (frame pattern) are formed, for example, by printing, but are not limited thereto. The first frame 281 is a pattern for drilling a hole in the building material through which the power line connected to the main breaker 40 is inserted. The second frame 282 is a pattern for drilling a hole in the building material through which the power line connected to the branch breaker 50 is inserted. Note that the positions and sizes of the first frame 281 and the second frame 282 can be specified from the mounting position of the internal unit, the number of power lines to be inserted, and the like.

[0120] Further, on the sheet member 280, information such as an explanation regarding the first frame 281 and the second frame 282, or an explanation regarding the mounting work, precautions, work order, etc. may be described. The information (for example, characters or pictures) is described so as to be readable when, for example, the base 210 fixed to the building material is viewed from the front.

[0121] Note that the pattern for drilling a hole in the building material is not limited to a 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 from other areas.

[0122] Note that the sheet member 280 may be a transfer sheet on which the positions of the holes are printed. And the sheet member 280 may be configured to be able to transfer the first frame 281 and the second frame 282 to the building material by applying stress such as pressure in a state of being in contact with the building material.

[0123] The distribution board 200 configured as described above is, for example, when viewed from the back side (when viewing from the minus X-axis side to the plus X-axis side), a part of the internal unit is visible. Note that it is not essential for the distribution board 200 to include the sheet member 280.

[0124] [2-2. Method of Mounting the Distribution Board] Next, a mounting method (construction method) for mounting the above-mentioned distribution board 200 on a building material such as a wall will be described with reference to FIG. 12. FIG. 12 is a flowchart showing the mounting method for mounting the distribution board 200 according to the present embodiment. At the time of step S11, it is assumed that the hole for the power line has not yet been drilled in the building material.

[0125] As shown in FIG. 12, first, the base 210 provided with the sheet member 280 is fixed to the building material (S11). In step S11, for example, only the base 210 and the sheet member 280 are fixed to the building material. Note that the fixing in step S11 is a permanent fixing, but it may be a temporary fixing, for example.

[0126] Next, a drilling process is performed with the sheet member 280 and the building material integrated (S12). In step S12, a hole penetrating the sheet member 280 and the building material is formed by a drill or the like. For example, a hole penetrating the sheet member 280 and the building material is formed along the first frame 281 and the second frame 282. That is, the drilling process is performed with the base 210 fixed to the building material. In other words, the drilling process can be performed without temporarily fixing the base 210 for writing the mark of the hole processing position on the building material and performing the marking operation (for example, scribing) on the building material.

[0127] Note that the sheet member 280 preferably has a strength such that its shape does not deform during the drilling process.

[0128] Next, the internal unit is mounted on the base 210 (S13). In step S13, for example, the mounting base 230 on which the main breaker 40 and the branch breaker 50 are mounted is mounted on the base 210 by a single mounting operation.

[0129] Next, wiring is performed on the main breaker 40 and the branch breaker 50 (S14). Wiring is performed by connecting a power line from a hole formed in the building material to one of the main breaker 40 and the branch breaker 50. At this time, since the base 210 has an H shape and it is possible to prevent the power line from coming into contact with the base 210, the base 210 does not interfere with the wiring work, and the wiring work can be efficiently performed.

[0130] [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.

[0131] For example, a construction method is known in which the base is temporarily fixed to the building material, the perforated portion is marked on the building material, the base is removed, the building material is drilled, and the base is finally fixed after the drilling is completed. When performing such a construction method, conventionally, the base 210 with the inner unit fixed was removed from the building material, but there was a problem with workability due to its 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, only the base 210 needs to be removed from the building material. Therefore, it is possible to suppress a decrease in workability regarding the weight of the base when performing the above construction method. In addition, an effect of reducing the fatigue of the worker during construction can also be expected.

[0132] Further, the base 210 includes a flat plate portion 211a (an example of the first part) to which the main breaker 40 and the branch breaker 50 are attached, and a pair of first wall portions 12 (an example of the second part) for attaching the base 210 to the building material, and the pair of first wall portions 12 are arranged so as to sandwich the flat plate portion 211a. And the distribution board 200 further includes a sheet member 280 disposed between the pair of first wall portions 12 and indicating the position of a hole for passing a power line to be opened in the building material during the construction of the distribution board 200.

[0133] Conventionally, the base was temporarily fixed to the construction material, the perforated areas were marked on the construction material, after removing the base, the construction material was drilled, and after the drilling process was completed, the base was permanently fixed. That is, conventionally, many operations such as attaching and detaching the base and operations such as marking were performed. On the other hand, by providing the sheet member 280, drilling can be performed along the positions of the holes shown in the sheet member 280, and operations such as marking can be omitted. Therefore, the workability regarding the drilling of the construction material during the installation of the distribution board can be improved.

[0134] Also, the sheet member 280 is transparent.

[0135] As a result, the state of the construction material can be confirmed through the sheet member 280 during the work, so it is easier to perform the work compared to the case where the construction material cannot be seen. Therefore, the workability regarding the drilling of the construction material during the installation of the distribution board can be further improved.

[0136] Also, the sheet member 280 may be a transfer sheet on which the positions of the holes are printed.

[0137] As a result, by transferring the positions of the holes to the construction material, the positions of the holes can be easily indicated on the construction material.

[0138] Also, the sheet member 280 further shows explanations regarding the construction.

[0139] As a result, the operator can perform the work while referring to the explanations, so it is possible to save the trouble of confirmation and the like. Therefore, the workability is further improved.

[0140] (Other Embodiments) As described above, the embodiments and the like have been described, but the present disclosure is not limited to the above embodiments and the like.

[0141] For example, in the above-described embodiments and the like, an example in which a pin is used as a component for rotatably attaching a door to a cover has been described, but a rod-shaped molded product (for example, a rod-shaped resin member) may be used.

[0142] Further, in the above-described embodiments and the like, an example in which the distribution board includes a pair of holding members has been described, but the number of holding members is not limited to two, and may be three or more.

[0143] Also, in each of the above-described embodiments and the like, an example in which the holding portion has a shape that is long in the Z-axis direction has been described, but the shape of the holding portion is not limited thereto. 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.

[0144] Also, in the above-described embodiments and the like, an example in which the holding mechanism provided on the holding member is convex has been described, but it may be concave. In this case, the holding mechanism provided on the door has a shape that engages with the concave holding mechanism of the holding member, and may be, for example, a convex holding mechanism.

[0145] Also, in the above-described embodiments and the like, an example in which an opening for exposing the main breaker and the branch breaker is formed in the cover has been described, but the opening may not be formed.

[0146] Also, the order in which each step in the flowchart described in the above-described embodiments and the like is performed is for exemplification in order to specifically describe the present disclosure, and may be an order other than the above. The order of a plurality of steps may be changed.

[0147] In addition, forms obtained by applying various modifications conceivable by those skilled in the art to the embodiments and the like, or forms realized by arbitrarily combining the components and functions in each embodiment without departing from the gist of the present disclosure are also included in the present disclosure.

Industrial Applicability

[0148] The present disclosure is useful for a distribution board provided with a door.

Description of Reference Numerals

[0149] 1, 200 Distribution board 10, 110, 210 Base 11, 111, 211 Main body 12 First wall 13, 113 Second wall 14 First wiring port 14a First communication part 15 Second wiring port 15a Second communication part 20 Holding member 21 Claw part 22 Fitting part 23 Regulation part 24 Holding part 25 Contact surface 26 Inclined surface 30, 230 Mounting base 40 Main breaker 50 Branch breaker 60 Cover 61 Protrusion 62 First opening 63 Second opening 64 Third opening 70 Door 71 Engaging part 211a Flat part 211b Flange part 280 Sheet member 281 First frame 282 Second frame

Claims

1. A base to which a main breaker and branch breakers are attached, the base having a first wiring opening for passing a power line connected to the main breaker and a second wiring opening for passing a power line connected to the branch breaker, and a cover covering the base, wherein the base further has a communication portion formed in a front view of the base to communicate at least one of the first wiring opening and the second wiring opening with an external space around the base in the front view, wherein, in a state where the base is attached to a building material, a length in a left-right direction of the communication portion is smaller than a length in the left-right direction of at least one of the first wiring opening and the second wiring opening Distribution board.

2. The base has, in the front view, a first communication portion communicating the first wiring opening and the external space, and a second communication portion communicating the second wiring opening and the external space. The distribution board according to claim 1.

3. At least one of the first wiring opening and the second wiring opening is a notch formed in the base. The distribution board according to claim 1 or 2.

4. In a state where the base is attached to the building material, the base has a pair of first wall portions protruding in a direction from an end portion in the left-right direction toward the cover, and a pair of second wall portions protruding in the direction from an end portion in a vertical direction intersecting the left-right direction, wherein a length of the second wall portion in the direction is smaller than a length of the first wall portion in the direction. The distribution board according to any one of claims 1 to 3.

5. In a state where the base is attached to the building material, the base has a pair of wall portions protruding in a direction from an end portion in the left-right direction toward the cover, and does not have a wall portion protruding in the direction from an end portion in a vertical direction intersecting the left-right direction. The distribution board according to any one of claims 1 to 3.

6. An inner unit to which the main breaker and the branch breakers are attached is detachably attached to the base. The distribution board according to any one of claims 1 to 5.

7. The base is made of metal and is directly attached to the building material. The distribution board according to any one of claims 1 to 6.

Images