JP4457313B2 - Distribution board - Google Patents

Description

  The present invention relates to a distribution board used in a house or a store.

  Conventionally, in a distribution board, for example, as described in JP-A-6-315411, a distribution board unit having a main breaker and a plurality of branch breakers is disposed on a base attached to a wall surface. A cover is attached to the base covering the distribution board unit. An operation surface portion is integrally formed on the front surface of the cover, and operation levers such as a main breaker and a plurality of branch breakers protrude from a window hole formed in the operation surface portion, and these operation levers can be operated.

Also, a spacer panel or a panel having a branch breaker window hole is selectively attached to the operation surface of the cover. For example, when a branch breaker is added, the panel is replaced with a branch breaker panel. There is a structure.
Japanese Patent Laid-Open No. 6-315211

  By the way, in the distribution board, a main breaker, a plurality of branch breakers, and the like are combined in various ways according to product specifications.

  However, the conventional distribution board can cope with the addition of branch breakers, but for each product specification, for example, a cover corresponding to the position and number of window holes must be prepared. In particular, even if the size of the cover is the same, if the product specifications are different, a cover must be prepared for each product specification. Therefore, there is an inconvenience that various types of molding dies are required corresponding to the types of the covers.

  The present invention has been made in view of these points, and an object of the present invention is to provide a distribution board in which parts can be made common to various product specifications to facilitate manufacturability.

The distribution board according to claim 1 includes a base; at least a limiter base, a main breaker, and a branch breaker, and a distribution board unit disposed on the base; a frame portion provided around the front surface; A cover having one opening facing the distribution board unit inside the frame and a plurality of positioning portions provided at upper and lower edges of the opening ; and a cover disposed on the base; an opening of the cover a plurality of engaging claws which can engage the edge of, for at least limiter Rutotomoni provided for the main breaker and for branch breakers, by each removably attached to the opening of the cover adjacent The plurality of positioning portions that cover the opening and are provided corresponding to the attachment positions move the main engaging claws adjacent to the limiter in the direction of the limiter along the upper and lower edges of the opening. Those that include a; bets and the panel is restricted.

Depending on the product specifications, for at least a limiter, a panel for the main breaker and for branch breakers select, attached to the opening of the cover in combination. For this reason, for example, the same cover can be used for different product specifications, and the same panel can be used for different sizes of covers. It becomes possible. In addition, positioning portions are provided at the upper and lower edge portions of the opening of the cover, and the engaging claws of the panel adjacent to the limiter panel are restricted from moving in the limiter side direction along the upper and lower edge portions by the positioning portion. The

According to the distribution panel according to claim 1, depending on the product specifications, for at least a limiter, a panel for the main breaker and for branch breakers select, that a combination of these attached to one opening of the cover Therefore, for example, it is possible to handle different product specifications using the same cover, and also to cover different sizes using the same panel, making it possible to share parts for various product specifications, Manufacturability can be facilitated. In addition, positioning portions are provided at the upper and lower edge portions of the opening of the cover, and the engaging claws of the panel adjacent to the limiter panel are restricted from moving in the limiter side direction along the upper and lower edge portions by the positioning portion. The

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 to FIG. 8 show a first embodiment, FIG. 1 is a front view showing a state in which a door body of a distribution board is opened, FIG. 2 is a cross-sectional view in a lateral direction of a cover of the distribution board, and FIG. FIG. 4 is a cross-sectional view of the panel of the distribution board, FIG. 5 is a front view of the distribution board cover with the cover removed, and FIG. 6 is a diagram of the base of the distribution board. FIG. 7 is a partial front view, FIG. 7 is a sectional view of the base of the distribution board, and FIG. 8 is a perspective view of the distribution board with its doors opened.

  1 and 8, the distribution board includes a horizontally long case 1, and the case 1 includes a base 2 attached to a wall surface and a cover 3 attached to the front surface of the base 2 so as to be openable and detachable. Yes.

  On the front surface of the cover 3, a concave portion 4 is formed in a central region excluding the peripheral edge portion, and an operation surface portion 5 is formed in the concave portion 4. The operation surface portion 5 has a surrounding frame portion 6, and an opening 7 is formed inside the frame portion 6. As shown in FIGS. 1 to 3, a panel engaging recess 8 to be engaged with a panel to be described later is formed on the front surface of the peripheral portion of the opening 7, and a panel to be described later is formed on the upper and lower edges of the opening 7. A plurality of positioning portions 9 are formed corresponding to the mounting positions. The right side surface of the positioning portion 9 is formed as an inclined surface, and the left side surface is formed as a vertical surface.

  Panels 11, 12, 13 for limiter, main breaker, and branch breaker formed separately from cover 3 are attached to opening 7 of cover 3, respectively. Each panel 11, 12, 13 is commonly formed with a plurality of (three in the embodiment) engaging claws 14 that can engage with the edge of the opening 7 in the vicinity of the upper and lower edges of the back surface. In addition, cover positioning ribs 15 are formed so as to protrude along the vertical direction in the vicinity of the left and right side edges on the back surface. A tapered surface portion 14a for easily getting over the edge portion of the opening portion 7 and a locking surface portion 14b for engaging with the rear surface of the edge portion of the opening portion 7 are formed at the tip of the engaging claw 14. The upper and lower ends of the cover positioning rib 15 are formed so as not to hit the edge of the opening 7. In addition, as shown in FIG. 4, for example, as shown in FIG. 4, the both sides of the panels 11, 12, and 13 are provided with concave and convex fitting portions 16 in which the edges of the adjacent panels 12 and 13 are fitted in a concave and convex shape. .

  As shown in FIGS. 1 and 8, the limiter panel 11 is formed with a knockout slit 17, and the main breaker panel 12 is formed with a single window hole 18 at the center, which is a branch breaker panel. A plurality of window holes 19 are formed in 13 in the upper and lower rows.

  A door body 21 that covers the front surface of the recess 4 is attached to the front surface of the cover 3 so as to be openable and closable via hinges 22 on both sides of the upper portion, and the door body 21 is locked to the lower portion of the recess 4 while being closed. An open / close button 23 is provided for releasing the lock by a moving operation. The door body 21 is made of, for example, an opaque resin.

  Further, in FIG. 5, the base 2 has a mounting plate portion 31 that is attached to the wall surface, and an edge portion 32 is formed so as to protrude forward from the peripheral portion of the mounting plate portion 31. A plurality of mounting holes 33 that are attached to the wall surface by screws or the like are formed in the mounting plate portion 31, and the upper position of the limiter installation area and the main breaker installation area, and the upper and lower positions of the branch breaker installation area An opening 34 for drawing in the electric wire of the indoor wiring is formed. Further, a terminal mounting base 35 for a ground relay terminal is formed on the right edge portion of the mounting plate portion 31.

  A distribution board unit 41 is disposed on the base 2. The distribution board unit 41 includes a limiter base 42, a main breaker 43, and a plurality of branch breakers 44. The limiter base 42 and the main breaker 43 are attached to an attachment plate 45, and are attached to the attachment plate portion 31 of the base 2 via the attachment plate 45. The branch breaker 44 is mounted in parallel along the upper and lower mounting bars 46, and is mounted on the mounting plate portion 31 of the base 2 via the upper and lower mounting bars 46.

  On the front surface of the main breaker 43, an operation portion 43a for switching a switch by a swinging operation in the vertical direction is disposed, and the operation portion 43a is disposed in a projecting manner in the window hole 18 of the panel 12 of the operation surface portion 5.

  At the center of the front surface of the branch breaker 44, an operation portion 44a for switching a switch by a swinging operation in the vertical direction is disposed, and this operation portion 44a is disposed in a projecting manner in the window hole 19 of the panel 13 of the operation surface portion 5. A pair of wire connection portions 44b are formed on the upper and lower parts of the front surface of the branch breaker 44, and the opposite wire connection portions 44b of the branch breakers 44 arranged in the vertical direction are connected to the main breaker 43 by wires (not shown). Covered with a cover 47. Therefore, the wire connecting portion 44b covered with the cover 47 is not shown in FIG.

  Upper and lower wiring spaces 48 and 49 are formed between the upper and lower edges 32 of the base 2 and the upper and lower portions of the distribution board unit 41. In addition, a ground relay terminal 51 is connected to the terminal mounting base 35 of the base 2 for connecting a ground wire drawn into the distribution board together with an electric wire connected to each branch breaker 44.

  6 and 7, a plurality of bosses 61 project from the attachment plate portion 31 of the base 2 so as to correspond to the attachment positions of the attachment plate 45 and the attachment bar 46. These bosses 61 have mounting holes 62 that open to the front end surface, have a substantially elliptical cross section with a long side in the vertical direction (streamline shape), and are tapered so that the front end side is thinner than the mounting plate portion 31. Is formed. Then, the mounting plate 45 and the mounting bar 46 are joined to the front end surface of the boss 61, and the mounting screw 63 inserted through the mounting plate 45 and the mounting bar 46 is screwed into the mounting hole 62 of the boss 61, whereby the mounting plate 45 The mounting bar 46 is attached to the boss 61. A wiring space 64 is formed between the mounting plate 45 and the mounting bar 46 attached to the boss 61 and the mounting plate portion 31.

  Next, the operation of the first embodiment will be described.

  When assembling the distribution board, the distribution board unit 41, base 2 and cover 3, and panels 11, 12, and 13 are selected according to the product specifications. The distribution board unit 41 selects whether or not to use the limiter base 42, the main breaker 43, the branch breaker 44, and the like. The size of the base 2 and the cover 3 is selected. For the panels 11, 12 and 13, the presence / absence of use and the type of panel used (for example, the position and number of the window holes 19 in the case of the branch breaker panel 13) are selected.

  In order to incorporate the selected panels 11, 12, 13 into the cover 3, for example, the engaging claws 14 on the lower side of the panels 11, 12, 13 are hooked on the lower edge of the opening 7 of the cover 3, The upper side of 12 and 13 is moved toward the cover 3, and the upper engaging claw 14 is engaged with the upper edge of the opening 7 and is moved over and locked.

  At this time, since the positioning portion 9 is provided at the edge portion of the opening portion 7 corresponding to the panel mounting position, when the engaging claws 14 of the panels 11, 12, 13 are engaged with the edge portion of the opening portion 7. As a result, the mounting position can be easily grasped and can be regulated to the correct mounting position.

  In a state where the panels 11, 12, and 13 are attached to the cover 3, the edges of the panels 11, 12, and 13 are engaged with the panel engaging recesses 8 of the cover 3, and between the edges of the adjacent panels 11, 12, and 13. Are fitted at the concave-convex fitting portion 16. The uneven fitting portion 16 can prevent positional deviation between the adjacent panels 11, 12, and 13 and can prevent a gap from occurring between the adjacent panels 11, 12, and 13.

  In addition, since the cover positioning ribs 15 are provided on the panels 11, 12, and 13, the cover positioning ribs 15 outside the panels 11 and 13 located at the ends contact the edge of the opening 7. The panels 11, 12, and 13 can be positioned, and the panels 11, 12, and 13 can be reinforced by the cover positioning ribs 15.

  Also, when installing the distribution board, the base 2 is fixed to the wall surface with the cover 3 removed, and the electric wires for indoor wiring in the wall surface are drawn into the base 2 through the opening 34 of the base 2, and the main breaker 43 and branch The ground wire is connected to the ground relay terminal 51 while being connected to the breaker 44 or the like. At this time, the wiring space 64 on the rear side of the mounting plate 45 and the mounting rail 46 can be used effectively. For example, the lower branch breaker is passed through the wire drawn into the upper opening 34 from the upper part to the lower part of the wiring space 64. 44 can be connected. When this electric wire is passed from the upper part to the lower part of the wiring space 64, a boss 61 is erected in the wiring space 64. Since the boss 61 is formed in an approximately elliptical section in the vertical direction, for example, a cylindrical boss Compared with a cylindrical boss or the like, the electric wire is not caught on the boss 61, and the electric wire can be passed smoothly.

  And after wiring of these electric wires is completed, the cover 3 is attached to the front surface of the base 2, and construction is completed.

  Further, when operating the operation surface portion 5 of the distribution board, the door body 21 is unlocked by the open / close button 23 and the door body 21 covering the front surface of the operation surface portion 5 is opened.

  As described above, the limiter, main breaker, and branch breaker panels 11, 12, and 13 can be individually formed according to the type, and these panels 11, 12, and 13 can be combined according to the product specifications. . For this reason, for example, the same cover 3 can be used for different product specifications, and the same panel 11, 12, 13 can be used for different sizes of the cover 3 for various product specifications. Parts can be shared, the types of molding dies can be reduced, costs can be reduced, and manufacturability can be facilitated.

  Next, FIG. 9 to FIG. 11 show a second embodiment, FIG. 9 is a rear view of a distribution breaker panel for a distribution board, and FIG. 10 is a side view of the distribution breaker panel for a distribution board. FIG. 11 is a cross-sectional view of the distribution breaker panel of the distribution board viewed from the plane direction.

  On the rear surface of the panel 13 for the branch breaker 44, breaker positioning ribs 71 that are positioned at the left and right edge portions of the respective window holes 19 and engage with the side edges of the respective branch breakers 44 are integrally projected. Yes. The distance between the breaker positioning ribs 71 in the left-right direction corresponds to the arrangement pitch of the plurality of branch breakers 44, and the branch breakers 44 can be engaged between the adjacent breaker positioning ribs 71.

  When the cover 3 to which the panel 13 is attached is closed to the front surface of the base 2, the plurality of breaker positioning ribs 71 protruding from the rear surface of the panel 13 are engaged with the side edges of the branch breakers 44. Can be positioned with respect to the branch breaker 44. Therefore, the operation lever 44a of each branch breaker 44 can be positioned and arranged at the center of each window hole 19 of the panel 13 in the left-right direction, and the merchantability can be improved. Furthermore, the panel 13 can be reinforced by integrally forming a plurality of breaker positioning ribs on the panel 13.

  Similar effects can be obtained by applying breaker positioning ribs (not shown) to the panel 12 for the main breaker 43.

  In addition to the limiter panel, master breaker panel, and branch breaker panel, spacer panels are used as spacer panels. When a necessary panel is installed in the cover, a spacer panel is used to fill the gap. Can also be used in combination.

  Moreover, although the horizontal distribution board was demonstrated in the said embodiment, the same effect is obtained also in a vertical distribution board.

It is a front view of the state which opened the door body of the electricity distribution panel which shows the 1st Embodiment of this invention. It is sectional drawing of the horizontal direction of the cover of a distribution board same as the above. It is an expanded sectional view of the vertical direction of the cover of a distribution board same as the above. It is sectional drawing of the panel of a distribution board same as the above. It is a front view of the state which removed the cover of the distribution board same as the above. It is a front view of a part of base of a distribution board same as the above. It is sectional drawing of the base of a distribution board same as the above. It is a perspective view of the state which opened the door body of the distribution board same as the above. It is a rear view of the panel for branch breakers of the distribution board which shows the 2nd Embodiment of this invention. It is sectional drawing which sees the panel for branch breakers of a distribution board same as the above from the side surface direction. It is sectional drawing which sees the panel for branch breakers of a distribution board same as the above from the plane direction.

Explanation of symbols

2 Base 3 cover
6 frame part 7 opening part 9 positioning part
11, 12, 13 panels
14 Engaging claw
15 Positioning rib for cover
16 Concavity and convexity fitting part
41 Distribution board unit
42 limiter board
43 Main breaker
44 Branch breaker
71 Breaker positioning rib

Claims (1)

With the base;
A distribution board unit having at least a limiter base, a main breaker, and a branch breaker and disposed on the base;
A frame provided around the front surface, one opening facing the distribution board unit on the inner side of the frame, and a plurality of positioning portions provided at upper and lower edges of the opening; A cover to be disposed;
A plurality of engaging claws which can engage the edge of the opening of the cover, detachable at least for the limiter, the main breaker and for provided for branch breakers Rutotomoni, each adjacent to the opening of the cover The main engaging claws adjacent to the limiter are provided on the limiter side along the upper and lower edges of the opening by the positioning portions provided in plurality corresponding to the mounting positions. A panel that is restricted from moving in the direction ;
A distribution board characterized by comprising:

Images