Distribution board

Abstract

To provide a distribution board capable of improving workability in construction.SOLUTION: A distribution board includes: a base 210 to which a main breaker and a branch breaker are attached, the base 210 including a first unit (for example, a body unit 211) to which the main breaker and the branch breaker are attached and a pair of second units (for example, a first wall portion 12) for attaching the base 210 to a building material, the pair of the second units (for example, the first wall portion 12) being disposed so as to sandwich the first unit (for example, the main body unit 211); and a sheet member 280 that is placed between the pair of second units (for example, the first wall portion 12) and in which a position of a hole for passing a power line is opened in the building material when the distribution board is constructed.SELECTED DRAWING: Figure 10

Description

[Technical field]

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

[0002] Patent Document 1 discloses a distribution board that includes a body member located on the rear side, and a cover member that is attached to the body member so as to cover the power distribution equipment arranged inside the body member while leaving a portion of the handle, etc. exposed, and the cover member is provided with an openable and closable door to keep the entire power distribution equipment in a state where it is not exposed (closed state). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-160992 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the case of a distribution board, it is desirable to improve the workability during installation.

[0005] Therefore, the present disclosure provides a distribution board that can improve workability during installation. [Means for solving the problem]

[0006] A distribution board according to one embodiment of the present disclosure comprises a distribution board comprising: a base on which a main breaker and a branch breaker are attached, the base having a first part on which the main breaker and the branch breakers are attached, and a pair of second parts for attaching the base to a construction material, the pair of second parts being positioned to sandwich the first part; and a sheet member positioned between the pair of second parts and indicating the positions of holes to be drilled in the construction material for passing power lines when the distribution board is installed. Effect of the Invention

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

[0008] [Figure 1] FIG. 1 is a perspective view showing an external appearance of a distribution board according to a first embodiment in a closed state. [Diagram 2] FIG. 2 is a perspective view showing an appearance of the distribution board according to the first embodiment in an open state. [Diagram 3] FIG. 3 is an exploded perspective view showing the configuration of the distribution board according to the first embodiment. [Figure 4] FIG. 4 is an enlarged view of the dashed line area in FIG. [Diagram 5] FIG. 5 is a diagram for explaining attachment of the holding member according to the first embodiment. [Figure 6] FIG. 6 is a partial cross-sectional perspective view of the distribution board according to the first embodiment in an open state. [Figure 7] FIG. 7 is a cross-sectional view of the dashed line area of ​​FIG. 6 as viewed from above. [Figure 8] FIG. 8 is a perspective view of a base according to a modified example of the first embodiment. [Figure 9] FIG. 9 is an exploded perspective view showing the configuration of the distribution board according to the second embodiment. [Figure 10] FIG. 10 is a front view showing a base according to the second embodiment. [Figure 11] FIG. 11 is a cross-sectional view of the base taken along line XI-XI shown in FIG. [Figure 12] FIG. 12 is a flowchart showing a method for installing the distribution board according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0010] The embodiments described below are all comprehensive or specific examples. The numerical values, shapes, components, the arrangement and connection of the components, steps, and the order of steps 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 that express only the strict meaning, but expressions that include a substantially equivalent range, for example, a difference of about a few percent. Furthermore, among the components in the following embodiments, components that are not described in the independent claims are described as optional components.

[0011] In addition, each figure is a schematic diagram and is not necessarily illustrated precisely. Therefore, for example, the scales in each figure do not necessarily match. In addition, in each figure, substantially the same configurations are given the same reference numerals, and duplicated explanations are omitted or simplified.

[0012] In this specification and drawings, the X-axis, X-axis, and Z-axis indicate the three axes of a three-dimensional Cartesian coordinate system. In each embodiment, the X-axis direction is the thickness direction of the distribution board (the stacking direction of the components). In this specification, "front view" means the case where the distribution board is viewed along the X-axis direction (thickness direction of the distribution board), and "top view" means the case where the distribution board is viewed along the Z-axis direction. The Z-axis direction is the up-down direction when the distribution board is attached to a building material, but is not limited to this.

[0013] In addition, in this specification, terms indicating the relationship between elements, such as parallel and orthogonal, terms indicating the shape of elements, such as rectangle and U-shape, as well as numerical values ​​and numerical ranges, are not expressions that only express the strict meaning, but are expressions that also include a substantially equivalent range, for example, a difference of about a few percent (e.g., about 5%).

[0014] (Embodiment 1) [1-1. Distribution board configuration] The configuration of a distribution board according to the present embodiment will be described with reference to Fig. 1 to Fig. 3. 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 a distribution board 1 according to the present embodiment in an open state.

[0015] As shown in Figures 1 and 2, the distribution board 1 has a door 70, and by opening and closing the door 70, it has an open state in which a portion of the main breaker 40 and the branch breaker 50 (e.g., an operating portion including a handle, etc.) is exposed, and a closed state in which the portion is not exposed.

[0016] The distribution board 1 receives power (system power) from a power system, which is a facility of a power company or the like, and branches the system power into a number of branch circuits. The distribution board 1 is installed inside a facility that uses power, such as a house, a hospital, a factory, or a building.

[0017] The configuration of the distribution board 1 will be described below with further reference to Figures 3 to 7. Figure 3 is an exploded perspective view showing the configuration of the distribution board 1 according to the present 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 housing of the distribution board 1 is formed by the retaining member 20 and the cover 60. The retaining member 20, the mounting base 30, the main breaker 40, and the branch breakers 50 are housed within the housing. In this embodiment, the housing is box-shaped.

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

[0020] The base 10 is made of metal, for example, galvanized steel plate, stainless steel, or the like. From the viewpoint of keeping costs low, the base 10 is preferably made of galvanized steel plate. Although the base 10 is made of a conductive material in this way, a part of the base 10 may be made of an insulating material such as resin. The base 10 may also be a molded product, the part of which is made of resin, for example. The base 10 may also be a molded product entirely made of resin. The shape of the base 10 when viewed from the front is, for example, rectangular.

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

[0022] The main body 11 is a plate-like member to which the main breaker 40 and the branch breakers 50 are attached. When the distribution board 1 is attached to a construction material, the main body 11 is attached so as to come into contact with the construction material. The main body 11 is directly attached to the construction material. The main body 11 is also formed with a first wiring port 14 and a second wiring port 15, which are openings for passing power lines through.

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

[0024] The first wall portions 12 are plate-like members protruding from both ends of the main body portion 11 in the Y-axis direction (an example of a first direction, e.g., the left-right direction when attached to a construction material) in a direction toward the cover 60 (the positive direction of the X-axis). The pair of first wall portions 12 are disposed opposite each other. The pair of first wall portions 12 are parallel to each other and are disposed, for example, perpendicular to the main body portion 11.

[0025] The second wall portions 13 are plate-like members protruding from both ends of the main body portion 11 in the Z-axis direction (an example of the second direction, for example, the up-down direction when attached to a construction material) in a direction toward the cover 60 (the positive direction of the X-axis). The pair of second wall portions 13 are disposed opposite each other. The pair of second wall portions 13 are parallel to each other and are disposed, for example, perpendicular to the main body portion 11.

[0026] The pair of first walls 12 and the pair of second walls 13 form a wall that surrounds the outer periphery of the main body 11. For example, when the cover 60 is attached to the base 10, the pair of first walls 12 and the pair of second walls 13 surround the wall of the cover 60 from the inside.

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

[0028] The first height and the second height may be equal. In addition, of the pair of first walls 12 and the pair of second walls 13, the pair of second walls 13 may not be provided.

[0029] The first height may be any length that allows the holding member 20 to be attached to the first wall portion 12. Furthermore, 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 do not have to be provided. In other words, 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 11, the pair of first walls 12 and the pair of second walls 13 are, for example, integrally formed.

[0031] 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 a closed state. The holding member 20 according to the present embodiment has the holding mechanism and is characterized in that it holds both the cover 60 and the door 70. The configuration of the holding member 20 will be described later.

[0032] 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 formed integrally.

[0033] The holding member 20 is made of, for example, a material having toughness or elasticity. The holding member 20 may also be made of, for example, the same material as the door 70. In this 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] In addition, in the open state, at least a portion of the holding member 20 is exposed. For example, as shown in Fig. 2, in the open state, the 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 a holding mechanism.

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

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

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

[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 specified in a 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. When an overcurrent flows in a power line connected to the branch breaker 50, the branch breaker 50 stops the supply of power to the power line.

[0040] The distribution board 1 may include at least one of the main breaker 40 and the branch breaker 50. In this case, the 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 (a second opening 63 and a third opening 64) that expose the operating parts of the main breaker 40 and the branch breaker 50.

[0042] The cover 60 has a protrusion 61. The protrusion 61 is provided on the front surface of the cover 60, protruding in the positive direction of the X-axis from near the center of the end in the Y-axis direction. The pair of protrusions 61 are provided opposite each other in a front view, sandwiching the second opening 63 and the third opening 64. The pair of protrusions 61 are provided parallel to each other, for example. The pair of protrusions 61 are trapezoidal when viewed in the Y-axis direction, but the shape is not limited thereto.

[0043] The length in the Z-axis direction of the pair of protrusions 61 is longer than the lengths in the Z-axis direction of the second opening 63 and the third opening 64. Furthermore, a first opening 62 is formed on each of the opposing surfaces of the pair of protrusions 61. A part of the holding member 20 (e.g., the claw portion 21) for fixing the cover 60 to the base 10 is positioned in the first opening 62. The claw portion 21 engages with the surface of the cover 60 in the first opening 62, thereby fixing the cover 60 to the base 10.

[0044] The second opening 63 is an opening that exposes the operating section of the main breaker 40, and has a position, shape, and size that correspond to the main breaker 40. The third opening 64 is an opening that exposes the operating section of each of the multiple branch breakers 50, and has a position, shape, and size that correspond to the multiple branch breakers 50. The third opening 64 exposes the operating sections of each of the multiple branch breakers 50 collectively. The second opening 63 and the third opening 64 are examples of openings. The operating section may also include a display section that displays the connection destination of the breaker, etc.

[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 attached to the protrusion 61 of the cover 60 so as to be rotatable about the Y-axis direction as the axis of rotation. Although details will be described later, the door 70 is held by the holding portion 24 of the holding member 20 (see FIG. 2) in the closed state.

[0046] In this 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 able to open downward. For example, the ends of the door 70 on the negative Z-axis side at both ends in the longitudinal direction are attached to the ends of the protrusions 61 on the negative Z-axis side by rod-shaped members such as pins. This allows the door 70 to be rotatably attached to the protrusions 61 by parts with a simple structure such as pins. The door 70 can be rotatably attached to the protrusions 61 by parts that are smaller than an upward-opening door, for example.

[0047] When the distribution board 1 is in an open state, the rotation of the door 70 is restricted by the cover 60. For example, when viewed from the Y-axis positive side to the Y-axis negative side, in the open state, the clockwise rotation of the door 70 is restricted by the cover 60. For example, the surface of the door 70 abuts against the surface of the cover 60, thereby restricting the rotation of the door 70. In other words, the distribution board 1 does not need to be provided with a dedicated part for restricting the rotation of the door 70. The door 70 may be an upward-opening door.

[0048] The door 70 has, for example, a rectangular shape in a front view, but is not limited thereto. The long dimension of the door 70 is in the Y-axis direction. The long dimension direction of the door 70 and the arrangement direction of the pair of holding members 20 are, for example, parallel to each other.

[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 made of, for example, 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. Structure of holding member] Next, the configuration of the holding member 20 will be described with reference to Figs. 4 to 7. Fig. 4 is an enlarged view of the dashed line region R4 in Fig. 3. Fig. 5 is a view for explaining the attachment of the holding member 20 according to this 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] 4, the holding member 20 has a claw portion 21, a fitting portion 22, and a restricting portion 23. A holding portion 24 is formed in 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 portion for fixing the cover 60 to the base 10. The claw portion 21 fixes the cover 60 to the base 10 by, for example, coming into contact with the cover 60 through a first opening 62 of the cover 60.

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

[0054] The restricting portion 23 is located 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 disposed opposite the claw portion 21, and restricts the warping of the claw portion 21 by abutting the claw portion 21 when the claw portion 21 warps outward. The restricting portion 23 may have the same length in the X-axis direction as the claw portion 21, for example, or may be provided in parallel to the claw portion 21. Note that the restricting portion 23 is not a required component.

[0055] The holding portion 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 protrusion provided on the claw portion 21, and has, for example, a shape that is elongated in the Z-axis direction.

[0056] Thus, the holding member 20 has a configuration for holding the door 70 in the closed state in addition to the original function of fixing the cover 60 to the base 10.

[0057] 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 further reference to Figs. 6 and 7. Fig. 6 is a partially cutaway 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 as viewed from above. Figs. 6 and 7 show the configuration of the holding portion 24 through a door 70. 1A and 1B show a perspective view and a cross-sectional view of the distribution board 1 taken along a plane parallel to the XY plane.

[0059] 6 and 7, the claw portion 21 has a shape (e.g., hook-shaped) with a tip that protrudes inward (to the negative Y-axis side in the example of FIG. 6), and engages with the cover 60 when the abutment surface 25 of the protruding projection abuts against the surface of the front side (positive X-axis side) of the cover 60. In this way, the holding member 20 restricts the movement of the cover 60. In other words, 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 an inclined surface 26 on the door 70 side (positive side of the X-axis) from the abutment surface 25 of the claw portion 21. Specifically, the holding portion 24 is a protrusion provided to protrude from the inclined surface 26 toward the door 70 side (negative side of the Y-axis). The holding portion 24 is a protrusion smaller than the protrusion that engages with the cover 60.

[0061] Door 70 also has engagement portions 71 at its ends (both ends) in the Y-axis direction that engage with holding portions 24 in the closed state. In the closed state, engagement portions 71 are provided at positions closer to base 10 (negative side of the X-axis) than holding portions 24 of claw portions 21, and protrude from the ends in a direction toward claw portions 21 (positive direction of the Y-axis in the example of FIG. 7). In the closed state, holding portions 24 and engagement portions 71 abut against each other.

[0062] As shown in FIG. 6, in the open state of the distribution board 1, the engagement portion between the claw portion 21 and the cover 60 is exposed. That is, when the distribution board 1 is attached to a building material, the engagement portion can be visually confirmed. In other words, in the distribution board 1, the engagement portion is located at a position that is visible in the open state. For example, by providing a marker in the area of ​​the cover 60 that abuts against the abutment surface 25 of the claw portion 21, it is possible to determine whether the claw portion 21 is firmly engaged (for example, whether the claw portion 21 is not firmly hooked) based on whether the marker is visible. That is, the degree of engagement of the claw portion 21 can be confirmed simply by checking whether the marker is visible. The marker may be formed, for example, by making the color of the area of ​​the cover 60 that abuts against the abutment surface 25 different from the other areas.

[0063] [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, the cover 60 that covers the base 10 and has the second opening 63 and the third opening 64 (an example of an opening) that expose the operating parts of the main breaker 40 and the branch breaker 50, the door 70 that is rotatably attached to the cover 60 and opens and closes the second opening 63 and the third opening 64, and the 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 a closed state in which the second opening 63 and the third opening 64 are closed.

[0064] This allows the cover 60 and the door 70 to be held by one member (holding member 20), which reduces the number of parts compared to when the cover 60 and the door 70 are held by different members. Therefore, the distribution board 1 can be manufactured at low cost.

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

[0066] This allows the holding member 20 to hold the door 70 with a simple structure having a protrusion.

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

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

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

[0070] This makes it possible to easily check whether the claw portion 21 is engaged with the cover 60, i.e., whether the cover 60 is fixed to the base 10, even after the distribution board 1 is attached to a construction material. For example, it is possible to prevent the cover 60 from falling after the distribution board 1 is attached to a construction material, thereby improving safety in use.

[0071] The door 70 is a downward-opening door, and when in the open state, it comes into contact with the cover 60, thereby restricting its rotation.

[0072] This makes it easier to maintain the open state compared to when the door 70 opens upward, and therefore makes it possible to simplify or miniaturize the parts for rotatably attaching the door 70 to the cover 60. This leads to a reduction in the cost of the distribution board 1.

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

[0074] This makes it possible to realize a base 10 that is low cost and has high strength, as compared to a case in which the base 10 is made of resin or the like.

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

[0076] For example, if the base 10 is made of metal, complex processing is required to make the holding member 20 out of metal. Also, the material yield may be poor (for example, the number of bases 10 that can be obtained from the original plate may be reduced). On the other hand, by making the holding member 20 a separate member from the base 10, it becomes possible to select materials and manufacturing methods according to the shape of the holding member 20, which contributes to cost reduction.

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

[0078] This eliminates the need to attach the holding member 20 to the base 10, making it possible to easily manufacture the distribution board 1. In addition, the number of parts can be reduced, making it possible to further reduce costs (manufacturing costs).

[0079] The door 70 may also be made of resin.

[0080] This allows the door 70 to be easily formed.

[0081] Additionally, 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 were made of different materials, the difference in strength could cause problems such as one of the holding member 20 and the door 70 being scraped off due to friction caused by opening and closing operations. On the other hand, if the holding member 20 and the door 70 are made of the same material, differences in strength are unlikely to occur, making it possible to suppress scraping caused by opening and closing operations.

[0083] (Modification of the first embodiment) The following describes a distribution board according to this modification with reference to Fig. 8. The following description will focus on differences from the first embodiment, and descriptions of contents that are the same as or similar to those of the first embodiment will be omitted or simplified. Fig. 8 is a perspective view showing a base 110 according to this modification. The following describes a distribution board that improves workability during installation.

[0084] 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 according to the first embodiment. The base 110 according to this modification further includes a first communication portion 14a and a second communication portion 15a formed in the base 10 according to the first embodiment. Specifically, the first communication portion 14a and the second communication portion 15a are formed in a main body portion 111. Moreover, the base 110 according to this modification 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. When viewed from the Y-axis direction, the first communication portion 14a connects the first wiring port 14 and the external space in a direction intersecting the insertion direction of the power line that passes through the first wiring port 14. The first communication portion 14a is formed, for example, extending in the Z-axis positive 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 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. The first wiring port 14 can also be said to be an open opening. Also, the first wiring port 14 can also be said to be open toward the external space when viewed from the front.

[0087] The second communication portion 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 portion 15a connects the second wiring port 15 and the external space in a direction intersecting the insertion direction of the power line that passes through the second wiring port 15. The second communication portion 15a is formed, for example, extending from the second wiring port 15 in the negative Z-axis direction in a front view.

[0088] The length of the second communication portion 15a in the Y-axis direction is determined, for example, by the number and size of 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. The second wiring port 15 can also be said to be an open opening. Also, the second wiring port 15 can also be said to be open toward the external space when viewed from the front.

[0089] 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, the first wiring port 14 can be said to be a notch formed in the base 110. 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, the second wiring port 15 can be said to be 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. The planar shape of the first communication portion 14a and the second communication portion 15a is, for example, rectangular, but is not limited thereto.

[0090] Each of the pair of second walls 113 is partially divided by the first communicating portion 14a or the second communicating portion 15a. That is, each of the pair of second walls 113 is configured by a wall provided at a distance. 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.

[0091] In this manner, in a front view of the base 110, the base 110 according to this modification has communication parts formed therein that communicate each of the first wiring port 14 and the second wiring port 15 with the external space of the base 110. Note that it is sufficient that at least one of the first communication part 14a and the second communication part 15a is formed.

[0092] The base 110 does not necessarily have to have at least one of the pair of first wall portions 12 and the pair of second wall portions 113. The base 110 does not necessarily have to have, for example, 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] In addition, when only one of the main breaker 40 and the branch breaker 50 is attached to the base 110, only the wiring port and communication portion corresponding to that 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 includes the base 110 on which the main breaker 40 and the branch breakers 50 are attached, the base 110 having the first wiring port 14 for passing the power lines connected to the main breaker 40 and the second wiring port 15 for passing the power lines connected to the branch breakers 50, and the cover 60 that covers the base 110. The base 110 further includes 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 a front view of the base 110.

[0095] This allows the power line to be arranged in at least one of the first wiring port 14 and the second wiring port 15 through the communication portion when constructing the distribution board. In other words, the worker does not need to pass the power line through a loop-shaped wiring port in at least one of the first wiring port 14 and the second wiring port 15. This improves the workability of arranging the power line when constructing the distribution board.

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

[0097] This allows power lines to be arranged in each of the first wiring port 14 and the second wiring port 15 via the communication portion when the distribution board is installed. This further improves the workability of arranging power lines when the distribution board is installed.

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

[0099] 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. This further improves the workability in arranging the power lines when constructing the distribution board.

[0100] Furthermore, when attached to the construction material, the base 110 has a pair of first walls 12 that protrude from ends in the left-right direction (an example of a first direction) in a direction toward the cover 60, and a pair of second walls 113 that protrude from ends in the up-down direction (an example of a second direction intersecting with the first direction). The length of the second walls 113 in that direction may be smaller than the length of the first walls 12 in that direction.

[0101] As a result, since the length of the second wall portion 113 in that direction is small, it is possible to prevent the second wall portion 113 from getting in the way when performing work such as wiring to the main breaker 40 and the branch breakers 50. This further improves the ease of operation in arranging the power lines when constructing the distribution board.

[0102] In addition, when attached to the construction material, the base 110 may have a pair of first wall portions 12 (an example of a wall portion) protruding from the left and right ends in a direction toward the cover 60, and may not have wall portions protruding in the same direction from the top and bottom ends.

[0103] As a result, there are no walls that get in the way when performing work such as wiring to main breaker 40 and branch breakers 50, which further improves the ease of arranging power lines when constructing the distribution board.

[0104] (Embodiment 2) A distribution board according to the present embodiment will be described below with reference to Figs. 9 to 12. Note that the following description will focus on differences from the first embodiment, and descriptions of contents that are the same as or similar to the first embodiment will be omitted or simplified. Note that in this embodiment, a distribution board that improves workability during installation will be described.

[0105] [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. 9 is an exploded perspective view showing the configuration of a distribution board 200 according to the present embodiment. Fig. 10 is a front view showing a base 210 according to the present embodiment. Fig. 11 is a cross-sectional view of the base 210 taken along 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 stand 230, a main breaker 40, a branch breaker 50, a cover 60, a door 70, and a sheet member 280. The distribution board 200 according to the present embodiment includes the base 210 and the mounting stand 230 instead of the base 10 and the mounting stand 30 according to the first embodiment, and further includes the sheet 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 other than the holding member 20 in the closed state.

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

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

[0109] The inner unit is detachably attached to the main body 211. That is, the main body 211 has a configuration in which the inner unit is detachably attached. The main body 211 may be, for example, a crank-shaped rail. The main body 211 may be, for example, a din rail. Note that "detachable" means that the inner unit can be attached to and detached from the main body 211 without using a fastening member such as a screw. For example, "detachable" can also be said to mean that the inner unit can be attached to and detached from the main body 211 without using other members such as fastening members and tools such as a screwdriver.

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

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

[0112] 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 positive side. The flange portions 211b are L-shaped when viewed from the Y-axis direction.

[0113] The pair of first walls 12 have holes in their YZ planar portions (flat portions) for attaching the base 210 to a construction material. The pair of first walls 12 are arranged to sandwich the flat portion 211a when viewed from the front. As in the first embodiment, a holding member 20 may be fixed to the pair of first walls 12. The pair of first walls 12 are, for example, L-shaped when viewed from the Z-axis direction (when viewed from above). The pair of first walls 12 are an example of a second portion.

[0114] The mounting base 230 is provided with an engagement portion (not shown) that corresponds to the shape of the base 210. The engagement portion may be, for example, a claw portion that corresponds to the crank shape of the base 210. In this embodiment, the engagement portion is a claw portion configured to hook onto the flange portion 211b. This allows the mounting base 230 to freely attach and detach the inner 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 manner, the internal unit to which the main breaker 40 and the branch breakers 50 are attached is detachably attached to the main body 211. In other words, the internal unit can be detached from the main body 211 with the main breaker 40 and the branch breakers 50 still attached.

[0116] The base 210 as described above is H-shaped in front view. A sheet member 280 is provided in an area between the pair of first walls 12 in front view where the main body 211 is not provided. The shape of the base 210 in front view 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 indicates the positions of holes for passing electric power lines through the construction material when the distribution board 200 is constructed. 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, for example, colored, or may be white or black. The sheet member 280 is vinyl-like. The sheet member 280 is formed of a translucent resin or the like.

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

[0119] As shown in FIG. 10, the sheet member 280 has a first frame 281 and a second frame 282 which indicate the hole-drilling area of ​​the construction material. The first frame 281 and the second frame 282 (frame pattern) are formed by, for example, printing, but are not limited to this. The first frame 281 is a pattern for drilling holes in the construction material through which the power lines connected to the main breaker 40 are inserted. The second frame 282 is a pattern for drilling holes in the construction material through which the power lines connected to the branch breaker 50 are inserted. 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, etc.

[0120] Furthermore, the sheet member 280 may further include information such as an explanation of the first frame 281 and the second frame 282, an explanation of the installation work, precautions, and the work sequence. The information (e.g., letters or pictures) is written so as to be readable, for example, when the base 210 fixed to the construction material is viewed from the front.

[0121] The pattern for making holes in the construction material is not limited to a frame as long as it can be visually confirmed. The pattern may be, for example, a pattern in which the area of ​​the holes is different in color from the other areas.

[0122] 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 so that the first frame 281 and the second frame 282 can be transferred to the construction material by applying a stress such as pressure to the construction material while in contact with the construction material.

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

[0124] [2-2. How to install the distribution board] Next, a method of mounting (construction) the distribution board 200 on a construction material such as a wall will be described with reference to Fig. 12. Fig. 12 is a flow chart showing the method of mounting the distribution board 200 according to the present embodiment. It is assumed that holes for power lines have not yet been drilled in the construction material at the time of step S11.

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

[0126] Next, the sheet member 280 and the construction material are drilled as a unit (S12). In step S12, holes penetrating the sheet member 280 and the construction material are formed using a drill or the like. For example, holes penetrating the sheet member 280 and the construction material are formed along the first frame 281 and the second frame 282. That is, the hole drilling is performed with the base 210 fixed to the construction material. In other words, the hole drilling can be performed without temporarily fixing the base 210 to mark the hole drilling positions on the construction material, and without marking the construction material (for example, scribing).

[0127] It is preferable that the sheet member 280 has a strength sufficient to prevent the shape from being distorted when holes are made in the sheet member 280 with a drill.

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

[0129] Next, wiring is performed to the main breaker 40 and the branch breakers 50 (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 prevent the power line from contacting the base 210, the base 210 does not get in the way of the wiring work, and the wiring work can be performed efficiently.

[0130] [2-3. Effects, etc.] As described above, in the distribution board 200 according to the present embodiment, the internal unit to which the main breaker 40 and the branch breakers 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 construction material, the hole location is marked on the construction material, the base is removed, holes are drilled in the construction material, and the base is permanently fixed after the hole drilling is completed. When performing such a construction method, the base 210 with the internal unit fixed thereto has been conventionally removed from the construction material, but it is heavy and has problems with workability. On the other hand, the distribution board 200 according to the present embodiment has a configuration in which the internal unit can be detachably attached to the base 210, so that when performing the construction method, the base 210 alone can be removed from the construction material. Therefore, it is possible to suppress the decrease in workability related to the weight of the base when performing the above construction method. In addition, it is also expected to have the effect of reducing fatigue of the worker during construction.

[0132] The base 210 also has a flat plate portion 211a (an example of a first portion) on which the main breaker 40 and the branch breakers 50 are attached, and a pair of first wall portions 12 (an example of a second portion) for attaching the base 210 to a construction material, the pair of first wall portions 12 being arranged to sandwich the flat plate portion 211a. The distribution board 200 further includes a sheet member 280 that is arranged between the pair of first wall portions 12 and indicates the positions of holes for passing power lines through which the holes are to be drilled in the construction material when the distribution board 200 is constructed.

[0133] Conventionally, the base is temporarily attached to the construction material, the hole locations are marked on the construction material, the base is removed, the holes are drilled in the construction material, and the base is permanently attached after the holes are drilled. In other words, conventionally, many tasks such as attaching and detaching the base and marking are required. On the other hand, by providing the sheet member 280, it is possible to omit tasks such as marking, since the holes can be drilled according to the hole locations indicated on the sheet member 280. Therefore, the workability of drilling holes in the construction material during the construction of the distribution board can be improved.

[0134] In addition, the sheet member 280 is transparent.

[0135] This allows the state of the construction material to be checked through the sheet member 280 during work, making the work easier than when the construction material is not visible. This further improves the ease of drilling holes in the construction material when constructing the distribution board.

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

[0137] This makes it possible to easily indicate the positions of the holes on the construction material by transferring the positions of the holes onto the construction material.

[0138] Moreover, the sheet member 280 further includes instructions regarding installation.

[0139] This allows the worker to carry out the work while looking at the instructions, which can save the worker the trouble of checking, etc. This further improves the workability.

[0140] (Other embodiments) Although the embodiments have been described above, the present disclosure is not limited to the above-described embodiments.

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

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

[0143] In addition, in the above-mentioned embodiments, the holding portion has an elongated shape in the Z-axis direction, but the shape of the holding portion is not limited to this. For example, the holding portion may be a protrusion (e.g., a dome-shaped protrusion), and such protrusions may be arranged side by side in the Z-axis direction.

[0144] In the above embodiment, the holding mechanism provided on the holding member is convex, 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] In addition, in the above-described embodiment and the like, an example has been described in which the openings for exposing the main breaker and the branch breakers are formed in the cover, but the openings do not necessarily have to be formed.

[0146] In addition, the order in which each step is performed in the flowcharts described in the above embodiments and the like is merely an example for specifically explaining the present disclosure, and an order other than the above may be used. The order of multiple steps may be changed.

[0147] In addition, the present disclosure also includes forms obtained by applying various modifications to the embodiments that a person skilled in the art may conceive, or forms realized by arbitrarily combining the components and functions of each embodiment within the scope that does not deviate from the spirit of the present disclosure. [Industrial Applicability]

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

[0149] 1, 200 Distribution board 10, 110, 210 base 11, 111, 211 Main unit 12 1st wall section 13, 113 2nd wall section 14 1st wiring port 14a 1st communication part 15 2nd wiring port 15a 2nd communication part 20 Retaining member 21 Claw 22 Fitting part 23 Regulatory Department 24 Holding part 25 Contact surface 26 Slope 30, 230 Mounting stand 40 Main breaker 50 Branch Breaker 60 Cover 61 Convex 62 First opening 63 Second Opening 64 3rd Opening 70 Door 71 Engagement part 211a Flat plate part 211b Flange part 280 Sheet material 281 1st slot 282 2nd slot

Claims

1. A distribution board, a base on which a main breaker and a branch breaker are attached, the base having a first portion on which the main breaker and the branch breaker are attached, and a pair of second portions for attaching the base to a construction material, the pair of second portions being arranged to sandwich the first portion; and a sheet member disposed between the pair of second portions and indicating the positions of holes for passing electric power lines through the construction material when the distribution board is installed. Distribution board.

2. The sheet member is transparent. The distribution board according to claim 1 .

3. The sheet member is a transfer sheet on which the positions of the holes are printed. The distribution board according to claim 1 or 2.

4. The sheet member further includes instructions regarding installation. The distribution board according to any one of claims 1 to 3.

5. The base is made of metal and is attached directly to the building material. The distribution board according to any one of claims 1 to 4.

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