JP2010011664A - Power distribution panel for dwelling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power distribution panel for dwelling, in which a case has excellent ventilation and heat discharge performance is high. <P>SOLUTION: The power distribution panel 1 for dwelling has a structure in which a box-like case 4 is formed of a substrate 2 having an opened front face and breakers 5, 6 attached thereon, and a cover 3 for exposing operation handles 5a, 6a of the breakers 5, 6 from an operation hole 3c and lidding the substrate 2, a groove 8 is formed in an abutting portion between an end edge of a side plate portion 2b of the substrate 2 and an end edge of a side plate portion 3b of the cover 3, and a ventilation hole 9 is provided on an appropriate portion of the groove 8 formed on the entire circumference of the side surface of the case 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a residential distribution board in which a base and a cover constitute a case for housing a breaker.

  A residential distribution board forms a box-shaped case with a base with an opening at the front and a cover that covers the front opening of the base, and a breaker is attached to the base. The operation handle is exposed to be operable. Residential distribution boards heat up the breaker when energized and the internal temperature of the case rises, so heat is dissipated from the operation hole and naturally cooled, but the door on the front of the cover is better to improve the appearance. When the body is provided, it is difficult to discharge heat, and the cooling performance is lowered. Therefore, a vent hole is provided in the concave portion in which the door body of the case is housed to improve heat exhaustion (see, for example, Patent Document 1). In addition, ventilation holes are provided in the mounting step formed on the side of the case so that the case can be semi-embedded. (For example, refer to Patent Document 2).

Japanese Patent Laid-Open No. 10-126908 (FIG. 1) Japanese Patent Laying-Open No. 2006-50899 (FIGS. 3 and 5)

  However, in a residential distribution board in which a vent hole is provided in the recess of the case in which the door body is housed, the vent hole is covered with the door body, so that heat is easily trapped and the heat exhaust performance is low. In addition, a residential distribution board with ventilation holes in the mounting step on the side of the case, when installed in a semi-embedded manner with the mounting step abutting against the wall of the building, exhausts the heat because the ventilation holes are blocked. If it is impossible to install and exposed with the back of the base in contact with the wall of the building, the air inside the case once hits the side of the case at the time of exhaust heat and then exhausted through the vent hole, so that the air permeability It was not good, and since the vent hole was perpendicular to the wall surface, there was a problem that the wall surface was soiled by the air discharged from the vent hole. Moreover, since the rear side of the case is recessed by the mounting step, there is a disadvantage that the appearance is not good.

  According to the first aspect of the present invention, a box-shaped case is constituted by a base to which a breaker is attached and a cover that covers the base by exposing the operation handle of the breaker from the operation hole. The residential distribution board is characterized in that a vent hole is provided in a butt portion between the base and the cover.

  According to the second aspect of the present invention, in the residential distribution board according to the first aspect, a groove is formed in the butt portion, and a vent hole is provided in the groove.

  According to the first aspect of the present invention, since the air in the case is discharged straight from the vent hole, the air permeability is good and the exhaust heat performance is improved. In addition, when the residential distribution board is installed on the wall surface, the air holes are parallel to the wall surface, so that the air discharged from the air holes is not contaminated.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the air holes are not conspicuous, it is possible to eliminate the mounting step on the side surface of the case and make it flat. There is an effect of improving.

  A residential distribution board forms a box-shaped case with a base that is open on the front and to which a breaker can be attached, and a cover that covers the base by exposing the operation handle of the breaker from the operation hole. A groove is formed at the abutting portion between the edge of the side plate portion and the edge of the side plate portion of the cover, and a ventilation hole is provided at an appropriate location of the groove formed on the entire circumference of the side surface of the case.

  Example 1 of a residential distribution board according to the present invention will be described with reference to the accompanying drawings of FIGS.

  In the residential distribution board 1, a box-like case 4 is constituted by a base 2 having an open front and a cover 3 that covers the front opening of the base 2.

  The base 2 is formed with a side plate portion 2b over the entire circumference of a substantially rectangular back plate portion 2a, and a main breaker 5, a branch breaker 6 and the like are arranged on the back plate portion 2a. In addition, an opening 2c for wiring to the main breaker 5 and the branch breaker 6 is formed in the back plate portion 2a.

  The cover 3 is opposed to the base 2 and is formed with a side plate portion 3b over the entire circumference of the front plate portion 3a. An operation handle 5a of the main breaker 5 and an operation handle 6a of the branch breaker 6 are provided on the front plate portion 3a. An operation hole 3c is formed so as to be operably exposed. Further, a door body 7 is provided on the front plate portion 3a so as to be openable and closable so as to cover the exposed operation handles 5a and 6a.

  Further, the base 2 has a stepped portion 2d formed inside the end edge of the side plate portion 2b. The cover 3 is opposed to the base 2 so that a step 3d deeper than the step 2d of the base 2 is formed outside the end edge of the side plate 3b, and the step 3d is formed at an appropriate position on the edge of the side plate 3b. A notch 3e having the same depth is formed.

  The base 2 and the cover 3 are formed so as to be detachable by engaging means, and the cover 3 can be attached to the base 2 by pressing the cover 3 in alignment with the front surface of the base 2. The cover 3 attached in this way has the edge of the side plate portion 3b hitting the step 2d of the base 2, and the step 3d of the cover 3 is deeper than the step 2d of the base 2, so that the edge of the base 2 A groove 8 is formed on the outer surface of the case 4 by the step 3 d of the cover 3. For this reason, the notch 3e of the cover 3 is provided in the groove 8 formed in the butt | matching part of the edge of the side-plate part 2b of the base 2, and the edge of the side-plate part 3b of the cover 3, and the vent hole 9 is formed in an appropriate location. Is done.

  Thus, by providing the vent hole 9 on the side surface of the case 4, the air warmed by the heat generated by the breakers 5 and 6 is discharged from the vent hole 9, and the temperature rise in the case 4 can be suppressed. The air holes 9 are provided at appropriate locations on the entire circumference of the side surface of the case 4 so that air inside the case is discharged straight from the air holes, and air outside the case also flows straight from the air holes. High performance. In addition, when the back plate 2a of the base 2 of the residential distribution board 1 is placed in contact with the wall surface of the building and exposed, the vent hole 9 is provided in parallel to the wall surface, so that it is discharged from the case 4 The wall is not soiled by air. Further, since the vent hole 9 is provided in the groove 8 at the abutting portion between the cover 3 and the base 2, it does not stand out and does not impair the appearance. For this reason, the side surface of the case 4 can be formed in a flat surface, and the appearance can be improved.

  In this embodiment, the vent hole 9 is formed by forming a notch 3e in the edge of the cover 3, but the edge of the base 2 is reversed by reversing the structure of the edges of the base 2 and the cover 3. A vent 9 may be formed by forming a notch in the air hole 9.

The distribution board for houses which concerns on this invention is shown, (a) is a front view, (b) is a bottom view, (c) is a right view. It is a front view of the base in the state where the cover of the distribution board for houses concerning the present invention was removed. It is a front view of the cover of the state where the door body of the distribution board for houses concerning the present invention was removed. It is a partial bottom view of the distribution board for houses which concerns on this invention, (a) shows a mode before attaching a cover to a base, (b) shows a mode that the cover was attached to the base. It is sectional drawing of the side-plate part of the distribution board for houses which concerns on this invention. It is a principal part enlarged view of FIG.

Explanation of symbols

1 Residential distribution board 2 Base 3 Cover 4 Case 8 Groove 9 Vent

Claims (2)

  In a residential distribution board that forms a box-shaped case with a base to which a breaker is attached and a cover that covers the base by exposing an operation handle of the breaker from an operation hole, an edge of the base A residential distribution board, characterized in that a vent is provided in a butt portion of the edge of the cover.   The residential distribution board according to claim 1, wherein a groove is formed in the abutting portion, and a ventilation hole is provided in the groove.

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