Distribution board

Abstract

To make a second cover easily openable / closable.SOLUTION: A first cover 4 includes a first panel 41 and a second panel 42. The first panel 41 has a first exposure window 411 from which a handle 211 of a master breaker 21 is exposed. The second panel 42 has a second exposure window 421 from which a handle 221 of a branch breaker 22 is exposed. A second cover 5 is mounted on a casing 3 so as to be openable / closable between a first position and a second position. An inner unit 2, the first panel 41, and the second panel 42 can be mounted on the casing 3 in a first state or second state in plan view from a direction normal to a wall surface of a facility FA1. The second state is a state where the inner unit 2, the first panel 41, and the second panel 42 are rotated by 180 degrees from the first state about a center P1 of the inner unit 2 with respect to the casing 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a distribution board, and more particularly to a distribution board including an internal unit including a main breaker and branch breakers. [Background technology]

[0002] Patent Document 1 describes a distribution board system (distribution board) that includes a case (housing), a distribution board unit (internal unit), and a door body (second cover). The case has a base that is attached to a wall surface, and a cover that is attached to the front of the base in an openable, closable, and removable manner. The distribution board unit has a main breaker and multiple branch breakers, and is housed within the case. The lid body is attached to the cover via hinges on both sides of the top so that it can be opened and closed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-304598 Summary of the Invention [Problem to be solved by the invention]

[0004] The distribution board system (distribution board) described in Patent Document 1 has a problem in that it is difficult to open and close the lid (second cover) depending on the orientation in which the distribution board system is attached to the wall surface.

[0005] An object of the present disclosure is to provide a distribution board in which the second cover can be easily opened and closed. [Means for solving the problem]

[0006] A distribution board according to one aspect of the present disclosure is a distribution board attached to a wall surface of a facility. The distribution board includes an internal unit, a housing, a first cover, and a second cover. The internal unit has a main breaker and branch breakers. The internal unit is detachably attached to the housing. The first cover includes a first panel and a second panel, and is detachably attached to the housing. The first panel has a first exposure window that exposes at least the handle of the main breaker. The second panel has a second exposure window that exposes at least the handle of the branch breaker. The second cover is attached to the housing so as to be openable and closable between a first position that covers the first cover and a second position that exposes the first cover. The internal unit, the first panel, and the second panel can be attached to the housing in a first state or a second state when viewed in a plan view from a normal direction to the wall surface. The second state is a state in which the internal unit, the first panel, and the second panel are rotated 180 degrees from the first state relative to the housing, with the center of the internal unit as the center of rotation. [Effects of the Invention]

[0007] The distribution board according to one aspect of the present disclosure has the advantage that the second cover can be easily opened and closed. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view of a distribution board according to an embodiment when a second cover is in an open position. [Figure 2] FIG. 2 is a front view showing a first installation example of the distribution board. [Figure 3] FIG. 3 is a front view showing a second installation example of the distribution board. [Figure 4] FIG. 4 is a front view showing a third installation example of the distribution board. [Figure 5] FIG. 5 is a front view showing a fourth installation example of the distribution board. DETAILED DESCRIPTION OF THE INVENTION

[0009] (Embodiment) Hereinafter, a distribution board according to an embodiment will be described with reference to the drawings. The drawings referred to in the following embodiments are schematic diagrams, and the sizes and thicknesses of the components in the drawings do not necessarily reflect the actual dimensions, and the ratios of sizes and thicknesses between the components do not necessarily reflect the actual dimensional ratios.

[0010] (1) Overview First, an overview of a distribution board 1 according to an embodiment will be described with reference to FIGS. 1 and 2. FIG.

[0011] 1 and 2, a distribution board 1 according to the embodiment is a distribution board applied to, for example, a facility FA1, and is attached to a first wall surface (wall surface) W1 of the facility FA1. The facility FA1 is, for example, a residential facility such as a detached house or each dwelling unit in an apartment building. Note that the facility FA1 is not limited to a residential facility, and may be, for example, a non-residential facility such as a factory, a store, an office building, a commercial building, a hospital, or a school.

[0012] As shown in FIGS. 1 and 2 , the distribution board 1 according to the embodiment includes an internal unit 2, a housing 3, a first cover 4, and a second cover 5. The internal unit 2 has a main breaker 21 and branch breakers 22. The internal unit 2 is detachably attached to the housing 3. The first cover 4 includes a first panel 41 and a second panel 42, and is detachably attached to the housing 3. The first panel 41 has a first exposure window 411 that exposes at least the handle 211 of the main breaker 21. The second panel 42 has a second exposure window 421 that exposes at least the handle 221 of the branch breaker 22. The second cover 5 is attached to the housing 3 so as to be openable and closable between a first position that covers the first cover 4 and a second position that exposes the first cover 4. The internal unit 2, the first panel 41, and the second panel 42 can be attached to the housing 3 in a first state or a second state when viewed from a plane normal to the first wall surface W1. The second state is a state in which the inner unit 2, the first panel 41, and the second panel 42 are rotated 180 degrees from the first state relative to the housing 3, with the center P1 of the inner unit 2 as the rotation center.

[0013] In the distribution board 1 according to the embodiment, the internal unit 2, the first panel 41, and the second panel 42 can be attached to the housing 3 in a first state or a second state. This makes it possible to open the second cover 5 toward the ceiling surface C1 or the second wall surfaces W21, W22 (see FIGS. 3 and 4) of the facility FA1, regardless of the orientation in which the distribution board 1 is attached to the first wall surface W1. In other words, the distribution board 1 according to the embodiment has the advantage that the second cover 5 can be easily opened and closed.

[0014] (2)Details Next, details of the distribution board 1 according to the embodiment will be described with reference to Figures 1 and 2. In the following description, unless otherwise specified, the longitudinal direction of the housing 3 is defined as the left-right direction, the short side direction (width direction) of the housing 3 is defined as the up-down direction, and the thickness direction (depth direction) of the housing 3 is defined as the front-rear direction. However, these directions are not intended to limit the directions in which the distribution board 1 is used. Furthermore, arrows indicating "up," "down," "left," "right," and "front" in the drawings are merely shown for the purpose of explanation and do not have any physical substance.

[0015] In this embodiment, as described above, the distribution board 1 is applied to a facility FA1, such as each dwelling unit of a detached house or an apartment building, and is attached to a first wall surface (wall surface) W1 of the facility FA1. When viewed from the front-to-back direction, which is the normal direction of the first wall surface W1, the distribution board 1 is formed in a rectangular shape that is longer in the left-to-right direction than in the up-to-down direction (see FIG. 1). The distribution board 1 is also formed in a rectangular parallelepiped shape.

[0016] As shown in FIGS. 1 and 2, a distribution board 1 according to the embodiment includes an internal unit 2, a housing 3, a first cover 4, and a second cover 5.

[0017] (2.1) Internal unit 1 and 2, the internal unit 2 has a main breaker 21 and a plurality of (23 in the illustrated example) branch breakers 22. The internal unit 2 also has a plurality of (two in the illustrated example) current measuring devices 23, a first mounting base 24, a second mounting base 25, a first mounting member 26, and a second mounting member 27.

[0018] The main breaker 21 has a plurality of (three in the illustrated example) primary terminals 210, a plurality of secondary terminals, contacts that electrically connect the primary terminals and the secondary terminals, and a handle 211 for turning the contacts on and off. The plurality of primary terminals 210 and the plurality of secondary terminals are in one-to-one correspondence.

[0019] For example, a single-phase three-wire electric wire drawn in from a commercial power system is connected to the three primary terminals 210 of the main breaker 21. A conductive bar of a first voltage pole (L1 phase), a conductive bar of a second voltage pole (L2 phase), and a conductive bar of a neutral pole (N phase) in the single-phase three-wire wiring are connected to the three secondary terminals of the main breaker 21. Each conductive bar is formed from a conductive member into a long plate shape that is long in the left-right direction, and is arranged inside the housing 3 at the center in the up-down direction and to the right of the main breaker 21.

[0020] The branch breakers 22 are arranged side by side in the left-right direction, separated into the upper and lower sides of each conductive bar. In this embodiment, as shown in Figures 1 and 2, 10 branch breakers 22 are arranged side by side in the left-right direction on the upper side of each conductive bar. In addition, 13 branch breakers 22 are arranged side by side in the left-right direction on the lower side of each conductive bar.

[0021] Each branch breaker 22 has a pair of primary terminals, a pair of secondary terminals, contacts that electrically connect the primary terminals and the secondary terminals, and a handle 221 for turning the contacts on and off. There is a one-to-one correspondence between a pair of primary terminals and a pair of secondary terminals.

[0022] The branch breakers 22 are available for 100V and 200V. A pair of primary terminals of the 100V branch breaker 22 is electrically connected to one of the conductive bars of the first voltage pole and the second voltage pole, and to the neutral pole conductive bar. A pair of primary terminals of the 200V branch breaker 22 is electrically connected to the conductive bar of the first voltage pole and the conductive bar of the second voltage pole, respectively. Corresponding wiring is electrically connected to the secondary terminals of the branch breakers 22. One or more loads, such as electrical appliances such as lighting fixtures and hot water supply equipment, or wiring fixtures such as outlets or wall switches, are connected to the wiring connected to the secondary terminals of each branch breaker 22. Therefore, the distribution board 1 can supply power to electrical appliances connected to the secondary terminals of the branch breakers 22 via wiring, or electrical appliances connected to the outlets (e.g., air conditioners, television sets, etc.).

[0023] Each of the multiple current measuring devices 23 is configured to measure the current flowing through a load connected to each of the multiple branch breakers 22. Each current measuring device 23 includes, for example, a substrate and multiple coils. The substrate is a plate-like structure that is long in the left-right direction. Multiple holes are formed in the substrate. Terminals extending from the conductive bars and connected to the primary terminals of the branch breakers 22 are inserted into the multiple holes, respectively. The coils are, for example, Rogowski coils, and are formed around the holes in the substrate. In this embodiment, each current measuring device 23 measures the current flowing through each of the multiple branch breakers 22. One of the multiple current measuring devices 23 (upper side in FIG. 1) corresponds to the 10 branch breakers 22 arranged above each conductive bar. The other of the multiple current measuring devices 23 (lower side in FIG. 1) corresponds to the 13 branch breakers 22 arranged below each conductive bar.

[0024] The main breaker 21 is attached to the first mounting base 24. With the main breaker 21 attached, the first mounting base 24 is attached to the first mounting member 26 by appropriate attachment means (for example, screws).

[0025] A plurality of branch breakers 22 and a plurality of current measuring devices 23 are attached to the second mounting base 25. Three conductive bars are also attached to the second mounting base 25. The second mounting base 25, with the plurality of branch breakers 22, the plurality of current measuring devices 23, and the three conductive bars attached, is attached to the second mounting member 27 by appropriate attachment means (for example, screws).

[0026] The first mounting member 26 is a member for mounting the main breaker 21 to the housing 3. The first mounting member 26 is mounted to the housing 3 using, for example, a mounting screw S1. More specifically, the first mounting member 26 is mounted to the second housing portion 32 by inserting the mounting screw S1 attached to the first mounting member 26 into the screw insertion hole 3211 of the mounting portion 321 provided in the second housing portion 32 of the housing 3, and then fixing the mounting screw S1 with a nut (not shown).

[0027] The second mounting member 27 is a member for mounting the plurality of branch breakers 22, the plurality of current measuring devices 23, and the three conductive bars to the housing 3. Similar to the first mounting member 26, the second mounting member 27 is mounted to the housing 3 using, for example, a mounting screw S1. More specifically, the second mounting member 27 is mounted to the second housing portion 32 by inserting the mounting screw S1 attached to the second mounting member 27 into the screw insertion hole 3211 of the mounting portion 321 provided in the second housing portion 32 of the housing 3, and then fixing the mounting screw S1 with a nut (not shown).

[0028] (2.2) Housing The housing 3 is made of synthetic resin such as ABS (Acrylonitrile Butadiene Styrene) resin. As will be described later, the internal unit 2 is detachably attached to the housing 3. As shown in FIG. 1 , the housing 3 has a first housing portion 31 and a second housing portion 32.

[0029] The first housing 31 is formed in the shape of a rectangular box with an opening on the rear surface (the surface on the side of the first wall W1). As shown in FIG. 1, the first housing 31 has an opening 311. The opening 311 is formed in the shape of a rectangle that is longer in the left-right direction than in the up-down direction. The opening 311 penetrates the center of the first housing 31 in the thickness direction of the first housing 31. The opening dimensions of the opening 311 are approximately the same as the outer dimensions of the first cover 4, which will be described later. The first housing 31 is larger than the second housing 32 in a plan view from the front.

[0030] The second housing section 32 is a portion that is attached to the first wall surface W1 of the facility FA1. The second housing section 32 has an accommodating recess 320. The accommodating recess 320 is a recess for accommodating the internal unit 2 and is formed along the front-rear direction. The second housing section 32 further has a pair of mounting sections 321. Each of the pair of mounting sections 321 is rod-shaped and elongated along the left-right direction, and is formed integrally with the second housing section 32. Each of the pair of mounting sections 321 has a plurality of screw insertion holes 3211 that are equally spaced along the longitudinal direction (left-right direction), through which mounting screws S1 for attaching the first mounting member 26 and the second mounting member 27 to the second housing section 32 are inserted.

[0031] In this embodiment, the housing 3 is assembled by assembling the first housing portion 31 to the second housing portion 32 from the front.

[0032] (2.3) First cover The first cover 4 is formed of a synthetic resin such as ABS resin, similar to the housing 3. As will be described later, the first cover 4 is detachably attached to the first housing portion 31 of the housing 3. As shown in FIG. 1 , the first cover 4 includes a first panel 41, a second panel 42, and a third panel 43.

[0033] As shown in Fig. 1, the first panel 41 is formed in the shape of a rectangular plate that is longer in the vertical direction than in the horizontal direction. The first panel 41 has a first exposure window 411. The first exposure window 411 is a hole for exposing at least the handle 211 of the main breaker 21 to the outside. The first exposure window 411 has a rectangular shape that is longer in the horizontal direction than in the vertical direction, and penetrates the first panel 41 in the thickness direction (front-rear direction). In this embodiment, the first exposure window 411 is formed in a size that allows the entire functional surface of the main breaker 21 (the surface on which the handle 211 is provided) to be exposed.

[0034] 1, the second panel 42 is formed in the shape of a rectangular plate that is longer in the left-right direction than in the up-down direction. The second panel 42 has a second exposure window 421. The second exposure window 421 is a hole for exposing at least the handles 221 of the branch breakers 22 to the outside. The second exposure window 421 has a rectangular shape that is longer in the left-right direction than in the up-down direction, and penetrates the second panel 42 in the thickness direction (front-rear direction). In this embodiment, the second exposure window 421 is formed in a size that allows the functional surfaces (the surfaces on which the handles 221 are provided) of the multiple branch breakers 22 and the front faces of the multiple current measuring devices 23 to be exposed.

[0035] 1, the third panel 43 is formed in the shape of a rectangular plate that is longer in the vertical direction than in the horizontal direction. The third panel 43 is a panel for closing the opening 311 of the first housing unit 31. In other words, the third panel 43 is used to close the opening 311 of the first housing unit 31 together with the first panel 41 and the second panel 42.

[0036] The first panel 41, the second panel 42, and the third panel 43 can be attached to the housing 3 in a first state or a second state when viewed from a plane in the normal direction (front-rear direction) of the first wall surface W1. In the first state, as shown in FIG. 1 , the third panel 43, the first panel 41, and the second panel 42 are arranged in this order from the left side when viewed from the front-rear direction. Although not shown, the second state is when the second panel 42, the first panel 41, and the third panel 43 are arranged in this order from the left side when viewed from the front-rear direction. That is, in the second state, the first panel 41, the second panel 42, and the third panel 43 are rotated 180 degrees from the first state with respect to the housing 3, with the center P1 of the internal unit 2 as the rotation center.

[0037] (2.4) Second cover The second cover 5, like the housing 3, is made of synthetic resin such as ABS resin. The second cover 5 is attached to the housing 3 so as to be openable and closable between a first position and a second position. The first position is a closed position that covers the first cover 4 attached to the first housing portion 31 of the housing 3. The second position is an open position that exposes the first cover 4 attached to the first housing portion 31 of the housing 3. In other words, the second cover 5 is attached to the housing 3 so as to be openable and closable between the first position that covers the first cover 4 and the second position that exposes the first cover 4.

[0038] (3) Distribution board layout Next, the arrangement of the distribution board 1 according to the embodiment will be described with reference to FIGS.

[0039] (3.1) First arrangement example First, a first arrangement example of the distribution board 1 according to the embodiment will be described with reference to FIGS.

[0040] 1 and 2, in the first arrangement example, the distribution board 1 is attached to a first wall surface W1 of the facility FA1 so as to be adjacent to a ceiling surface C1 and a second wall surface W2 of the facility FA1. In a plan view from the front (normal direction of the first wall surface W1), the ceiling surface C1 is located above the first wall surface W1, and the second wall surface W2 is located to the left of the first wall surface W1.

[0041] In the first arrangement example, the second cover 5 can be moved from a first position (closed position) to a second position (open position) by opening it from the bottom to the top with respect to the housing 3. When the second cover 5 is located in the second position, it faces the ceiling surface C1 of the facility FA1 (see FIGS. 1 and 2). In this embodiment, the attachment state of the internal unit 2 to the housing 3 in the first arrangement example is the first state.

[0042] In addition, in the first arrangement example, in a third direction perpendicular to both the first direction and the second direction, the main breaker 21 and the multiple branch breakers 22 are arranged in this order from the side of a second wall W2 different from the first wall W1. The first direction is a normal direction to the first wall W1 on which the distribution board 1 is attached. The second direction is a normal direction to the ceiling surface C1 of the facility FA1. That is, in this embodiment, the first direction is the front-to-back direction, the second direction is the up-down direction, and the third direction is the left-to-right direction. Therefore, in the first arrangement example, in a plan view from the first direction, the main breaker 21 is arranged on the left side and the multiple branch breakers 22 are arranged on the right side.

[0043] In the first arrangement example, as shown in Figures 1 and 2, by setting the mounting state of the internal unit 2 relative to the housing 3 to the first state, it is possible to arrange the main breaker 21 on the left side and the multiple branch breakers 22 on the right side, while making it easier to open the second cover 5.

[0044] (3.2) Second arrangement example Next, a second arrangement example of the distribution board 1 according to the embodiment will be described with reference to FIG.

[0045] 3, in the second arrangement example, the distribution board 1 is attached to a first wall surface W1 of the facility FA1 so as to be adjacent to a ceiling surface C1 and a second wall surface W21 of the facility FA1. In a plan view from the front (normal direction of the first wall surface W1), the ceiling surface C1 is located above the first wall surface W1, and the second wall surface W21 is located to the right of the first wall surface W1.

[0046] In the second arrangement example, the second cover 5 can be moved from a first position (closed position) to a second position (open position) by opening it from left to right with respect to the housing 3. When the second cover 5 is located in the second position, it faces a second wall W21 different from the first wall W1 of the facility FA1 (see FIG. 3). In this embodiment, the mounting state of the internal unit 2 with respect to the housing 3 in the second arrangement example is the first state.

[0047] In the second arrangement example, the main breaker 21 and the multiple branch breakers 22 are arranged in this order from the ceiling surface C1 side of the facility FA1 in a third direction that is perpendicular to both the first direction and the second direction. The first direction is the normal direction of the first wall surface W1 on which the distribution board 1 is attached. The second direction is the normal direction of the second wall surface W2. That is, in this embodiment, the first direction is the front-to-back direction, the second direction is the left-to-right direction, and the third direction is the up-to-down direction. Therefore, in the second arrangement example, in a plan view from the first direction, the main breaker 21 is arranged on the upper side and the multiple branch breakers 22 are arranged on the lower side.

[0048] In the second arrangement example, as shown in Figure 3, by setting the mounting state of the internal unit 2 relative to the housing 3 to the first state, it is possible to arrange the main breaker 21 on the upper side and the multiple branch breakers 22 on the lower side, while making it easier to open the second cover 5.

[0049] (3.3) Third arrangement example Next, a third arrangement example of the distribution board 1 according to the embodiment will be described with reference to FIG.

[0050] 4, in the third arrangement example, the distribution board 1 is attached to a first wall surface W1 of the facility FA1 so as to be adjacent to a ceiling surface C1 and a second wall surface W22 of the facility FA1. In a plan view from the front (normal direction of the first wall surface W1), the ceiling surface C1 is located above the first wall surface W1, and the second wall surface W22 is located to the left of the first wall surface W1.

[0051] In the third arrangement example, the second cover 5 can be moved from a first position (closed position) to a second position (open position) by opening it from right to left with respect to the housing 3. When the second cover 5 is located in the second position, it faces a second wall surface W22 different from the first wall surface W1 of the facility FA1 (see FIG. 4). In this embodiment, the attachment state of the internal unit 2 to the housing 3 in the third arrangement example is the second state.

[0052] In addition, in the third arrangement example, in a third direction perpendicular to both the first direction and the second direction, the main breaker 21 and the multiple branch breakers 22 are arranged in this order from the ceiling surface C1 side of the facility FA1. The first direction is the normal direction of the first wall surface W1 on which the distribution board 1 is attached. The second direction is the normal direction of the second wall surface W22. That is, in this embodiment, the first direction is the front-to-back direction, the second direction is the left-to-right direction, and the third direction is the up-to-down direction. Therefore, in the third arrangement example, in a plan view from the first direction, the main breaker 21 is arranged on the upper side and the multiple branch breakers 22 are arranged on the lower side.

[0053] Here, the second state is a state in which the internal unit 2 is rotated 180 degrees from the first state relative to the housing 3, with the center P1 of the internal unit 2 as the rotation center. In the first state, with the second cover 5 in the second position (open position) facing up, the main breaker 21 is located on the left and the multiple branch breakers 22 are located on the right. On the other hand, in the second state, with the second cover 5 in the second position facing up, the main breaker 21 is located on the right and the multiple branch breakers 22 are located on the left.

[0054] In the third arrangement example, as shown in Figure 4, by setting the mounting state of the internal unit 2 relative to the housing 3 to the second state, it is possible to arrange the main breaker 21 on the upper side and the multiple branch breakers 22 on the lower side, while making it easier to open the second cover 5.

[0055] 4, the first cover 4 (first panel 41, second panel 42, third panel 43) is not shown, but in the distribution board 1 according to this embodiment, the first cover 4 can also be attached to the first housing part 31 of the housing 3 in a second state rotated 180 degrees from the first state. In the example of FIG. 4, the first panel 41, second panel 42, and third panel 43 are attached to the first housing part 31 in the order of the third panel 43, first panel 41, and second panel 42 from above.

[0056] That is, in the distribution board 1 of this embodiment, the internal unit 2, the first panel 41 and the second panel 42 can be attached to the housing 3 in a first state or a second state when viewed in a plan view from the normal direction (first direction) of the first wall surface W1.

[0057] (3.4) Fourth arrangement example Next, a fourth arrangement example of the distribution board 1 according to the embodiment will be described with reference to FIG.

[0058] 5, in the fourth arrangement example, the distribution board 1 is attached to a first wall W1 of the facility FA1 so as to be adjacent to the floor F1 of the facility FA1 and a second wall W2 different from the first wall W1. In a plan view from the front (normal direction of the first wall W1), the floor F1 is located below the first wall W1, and the second wall W22 is located to the left of the first wall W1.

[0059] In the fourth arrangement example, the second cover 5 can be moved from a first position (closed position) to a second position (open position) by opening it from top to bottom relative to the housing 3. When the second cover 5 is located in the second position, it faces the floor F1 of the facility FA1 (see FIG. 5). In this embodiment, the mounting state of the internal unit 2 relative to the housing 3 in the fourth arrangement example is the second state.

[0060] In addition, in the fourth arrangement example, in a third direction perpendicular to both the first direction and the second direction, the main breaker 21 and the multiple branch breakers 22 are arranged in this order from the second wall W2 side of the facility FA1. The first direction is the normal direction of the first wall W1 on which the distribution board 1 is attached. The second direction is the normal direction of the floor F1. That is, in this embodiment, the first direction is the front-to-back direction, the second direction is the up-down direction, and the third direction is the left-to-right direction. Therefore, in the fourth arrangement example, in a plan view from the first direction, the main breaker 21 is arranged on the left side and the multiple branch breakers 22 are arranged on the right side.

[0061] In the fourth arrangement example, as shown in Figure 5, by setting the mounting state of the internal unit 2 relative to the housing 3 to the second state, it is possible to arrange the main breaker 21 on the left side and the multiple branch breakers 22 on the right side, while making it easier to open the second cover 5.

[0062] 5 does not show the first cover 4 (first panel 41, second panel 42, third panel 43), but in the distribution board 1 according to this embodiment, the first cover 4 can also be attached to the first housing section 31 of the housing 3 in a second state rotated 180 degrees from the first state. In the example of FIG. 5, the first panel 41, second panel 42, and third panel 43 are attached to the first housing section 31 in the order of the third panel 43, first panel 41, and second panel 42 from the left side.

[0063] (4) Effects In the distribution board 1 according to the embodiment, the internal unit 2, the first panel 41, and the second panel 42 can be attached to the housing 3 in a first state or a second state. This makes it possible to open the second cover 5 toward the ceiling surface C1 or the second wall surfaces W21, W22 of the facility FA1, regardless of the orientation in which the distribution board 1 is attached to the first wall surface W1. In other words, the distribution board 1 according to the embodiment has the advantage that the second cover 5 can be easily opened and closed.

[0064] Furthermore, the distribution board 1 according to the embodiment has the advantage that the second cover 5 can be easily opened and closed even when the distribution board 1 is attached to a position on the first wall W1 closer to the ceiling surface C1 as shown in FIG.

[0065] Furthermore, in the distribution board 1 of the embodiment, when the distribution board 1 is installed at a position closer to the ceiling surface C1 on the first wall surface W1 as shown in Figure 1, it is possible to design the power distribution so that the flow of electricity is from the left side to the right side.

[0066] Furthermore, the distribution board 1 according to the embodiment has the advantage that the second cover 5 can be easily opened and closed even when the distribution board 1 is attached to the first wall W1 at a position closer to the second wall W21, W22, as shown in Figures 3 and 4.

[0067] Furthermore, in the distribution board 1 of the embodiment, when the distribution board 1 is installed at a position on the first wall W1 closer to the second wall W21, W22 as shown in Figures 3 and 4, it is possible to design the power distribution so that the flow of electricity is from top to bottom.

[0068] Furthermore, the distribution board 1 according to the embodiment has the advantage that the second cover 5 can be easily opened and closed in each dwelling unit of a detached house or an apartment building.

[0069] (Aspect) The present specification discloses the following aspects.

[0070] A distribution board (1) according to a first aspect is a distribution board (1) that is attached to a wall surface (W1) of a facility (FA1). The distribution board (1) includes an internal unit (2), a housing (3), a first cover (4), and a second cover (5). The internal unit (2) has a main breaker (21) and branch breakers (22). The internal unit (2) is detachably attached to the housing (3). The first cover (4) includes a first panel (41) and a second panel (42), and is detachably attached to the housing (3). The first panel (41) has a first exposure window (411) that exposes at least the handle (211) of the main breaker (21). The second panel (42) has a second exposure window (421) that exposes at least the handle (221) of the branch breaker (22). The second cover (5) is attached to the housing (3) so as to be openable and closable between a first position at which the second cover (5) covers the first cover (4) and a second position at which the first cover (4) is exposed. The inner unit (2), the first panel (41), and the second panel (42) can be attached to the housing (3) in a first state or a second state when viewed from a plane normal to the wall surface (W1). The second state is a state in which the inner unit (2), the first panel (41), and the second panel (42) are rotated 180 degrees from the first state relative to the housing (3) around the center (P1) of the inner unit (2).

[0071] This embodiment has the advantage that the second cover (5) can be easily opened and closed.

[0072] In the distribution board (1) according to the second aspect, in the first aspect, the second cover (5) faces the ceiling surface (C1) of the facility (FA1) when located at the second position.

[0073] According to this embodiment, even when the distribution board (1) is attached to a position on the wall surface (W1) close to the ceiling surface (C1), there is an advantage that the second cover (5) can be easily opened and closed.

[0074] In the distribution board (1) according to the third aspect, in the second aspect, the main breaker (21) and the branch breakers (22) are arranged in this order in the third direction from the side of a second wall surface (W2) different from the first wall surface (W1), which is the wall surface (W1). The third direction is a direction perpendicular to both the first direction, which is the normal direction to the wall surface (W1), and the second direction, which is the normal direction to the ceiling surface (C1).

[0075] According to this embodiment, even when the distribution board (1) is attached to a position on the wall surface (W1) close to the ceiling surface (C1), there is an advantage that the second cover (5) can be easily opened and closed.

[0076] In the distribution board (1) according to the fourth aspect, the third direction is the left-right direction in the third aspect. In a plan view from the first direction, the main breaker (21) is arranged on the left side and the branch breaker (22) is arranged on the right side.

[0077] According to this embodiment, when the distribution board (1) is attached to a position on the wall surface (W1) close to the ceiling surface (C1), it is possible to design the power distribution so that the flow of electricity is from the left side to the right side.

[0078] In the distribution board (1) according to the fifth aspect, in the first aspect, when the second cover (5) is positioned in the second position, it faces a second wall surface (W21, W22) different from the first wall surface (W1), which is a wall surface (W1) of the facility (FA1).

[0079] According to this embodiment, even if the distribution board (1) is attached to the first wall (W1) at a position closer to the second wall (W21, W22), the second cover (5) can be easily opened and closed.

[0080] In the distribution board (1) according to the sixth aspect, in the fifth aspect, the main breaker (21) and the branch breakers (22) are arranged in this order from the ceiling surface (C1) side of the facility (FA1) in the third direction. The third direction is a direction orthogonal to both the first direction, which is a normal direction to the first wall surface (W1), and the second direction, which is a normal direction to the second wall surfaces (W21, W22).

[0081] According to this embodiment, when the distribution board (1) is installed at a position on the first wall (W1) closer to the second wall (W21, W22), it is possible to design the power distribution so that the flow of electricity is from the top to the bottom.

[0082] In the distribution board (1) according to the seventh aspect, in any one of the first to sixth aspects, the facility (FA1) is a detached house or each dwelling unit of an apartment building.

[0083] This embodiment has the advantage that the second cover (5) can be easily opened and closed in a detached house or in each dwelling unit of an apartment building.

[0084] The configurations according to the second to seventh aspects are not essential for the distribution board (1) and can be omitted as appropriate. [Explanation of symbols]

[0085] 1 Distribution board 2 Internal unit 3. Housing 4 First Cover 5 Second Cover 21 Main breaker 22 Branch breaker 41 Panel 1 42 Panel 2 211,221 Handle 411 First exposure window 421 Second exposure window C1 Ceiling FA1 Facility P1 center W1 1st wall (wall) W2, W21, W22 2nd wall

Claims

1. A distribution board attached to the wall of a facility, an internal unit having a main breaker and branch breakers; a housing to which the internal unit is detachably attached; a first cover detachably attached to the housing, the first cover including a first panel having a first exposure window that exposes at least the handle of the main breaker and a second panel having a second exposure window that exposes at least the handle of the branch breaker; a second cover attached to the housing so as to be openable and closable between a first position that covers the first cover and a second position that exposes the first cover; the internal unit, the first panel, and the second panel can be attached to the housing in a first state or a second state when viewed in a plan view from a normal direction of the wall surface, the second state is a state in which the internal unit, the first panel, and the second panel are rotated 180 degrees from the first state with the center of the internal unit as a rotation center relative to the housing; Distribution board.

2. the second cover faces a ceiling surface of the facility when positioned at the second position; The distribution board according to claim 1.

3. In a third direction orthogonal to both a first direction that is the normal direction of the wall surface and a second direction that is the normal direction of the ceiling surface, the main breaker and the branch breaker are arranged in this order from a second wall surface side that is different from the first wall surface that is the wall surface. The distribution board according to claim 2.

4. the third direction is a left-right direction, When viewed from the first direction, the main breaker is disposed on the left side and the branch breaker is disposed on the right side. The distribution board according to claim 3.

5. When the second cover is positioned at the second position, the second cover faces a second wall surface that is different from the first wall surface that is the wall surface of the facility. The distribution board according to claim 1.

6. the main breaker and the branch breakers are arranged in this order from the ceiling surface side of the facility in a third direction perpendicular to both a first direction that is a normal direction to the first wall surface and a second direction that is a normal direction to the second wall surface; The distribution board according to claim 5.

7. The facility is a detached house or an individual dwelling unit in an apartment building. The distribution board according to any one of claims 1 to 6.

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