JP2589104Y2 - Switchboard group consisting of switchboards and switchboards - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a switchboard group in which switchboards and switchboards are arranged side by side so as to be properly cooled without being affected by the quality of outside air.

[0002]

2. Description of the Related Art First, the structure of a switchboard will be described with reference to FIG. As shown in the figure, the inside of a housing 1 made of a metal plate is partitioned by partitions 2 and 3, and a power bus room 4 and a load bus room 5
And a circuit breaker chamber 6 are formed. The partition 2 has a disconnecting portion 7a,
7b are provided side by side in the horizontal direction perpendicular to the plane of the drawing for each of the three phases, and the power buses 8 for the three phases introduced into the power bus room 4 from the outside of the housing 1 are connected to the respective disconnecting portions 7a. The three-phase load buses 9 arranged in the load bus chamber 5 for connection to the load are connected to the respective disconnecting portions 7b.
In the circuit breaker room 6, a drawer-type circuit breaker 11 capable of opening the door 10 and carrying it out of the housing 1 is provided so that it can be carried in and out. The draw-out type circuit breaker 11 is connected to an unillustrated breaking part in the draw-out type circuit breaker 11, and is connected to the disconnecting parts 7 a and 7 b by being carried into the breaker room 6.
a and 14b are provided for each of the three phases.

[0003] Since such a switchboard has a heating element that generates heat, it is necessary to cool the inside of the housing 1. As a structure for cooling the inside of the housing 1, there is a structure shown in FIG. FIG. 4A shows a case in which a hole (not shown) is formed on the housing 1 and a fan 24 is provided on the hole via a support stand 23, while an air inlet 22 is provided on the front and rear surfaces of the housing 1. The casing 1 is formed so that fresh outside air is taken in from the intake port 22 and discharged from above. FIG. 4 (b),
(C) shows a configuration in which a small cooler 21 for a switchboard is attached to the rear or upper part of the housing 1 so that cool air circulates inside the housing 1. In FIG. 4D, a large-sized cooler 20 is connected to the rear surface of the housing 1 via a flexible duct 19 so that air circulates as indicated by an arrow.

[0004]

[Problem to be solved by the present invention] However, FIG.
The switchboard is easily affected by the quality of the outside air. For example, when the switchboard is installed near the sea, salt damage causes rust. FIG.
In the switchboards of (b) and (c), the capacity of the cooler is small, and in the switchboard group in which switchboards are arranged side by side, a cooler must be provided for each switchboard. Need to be formed. In the switchboard of FIG. 4D, the connection to the large cooler must be performed by a flexible duct, and the height of the large cooler must be adjusted.

[0005] Therefore, an object of the present invention is to provide a switchboard group in which switchboards and switchboards that solve such problems are arranged.

[0006]

In order to achieve the above object, the structure of the present invention is to provide a cooling chamber on the rear side of the switchboard by providing a partition having a large number of through holes inside a housing constituting the switchboard. The cooling chamber is provided with a fan for sending a cooler and cooled air to another chamber through a through-hole in the cooling chamber, or a plurality of the switchboards are closely attached to a side of the switchboard. It is characterized in that the cooling chambers adjacent to each other are arranged and communicate with each other.

[0007]

In the switchboard according to the first aspect, the air cooled by the cooler moves to another room outside the cooling chamber through the through hole by the function of the fan, and cools the heating element.

In the switchboard group according to the second aspect, since the small cooling chambers are integrated into one, the cooling chambers can be cooled with a small number of coolers. The cooled air is sent into each chamber for each switchboard by a fan to cool the heating elements.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. In this embodiment, since a part of the conventional switchboard is improved, the same parts as those in the related art are denoted by the same reference numerals, and description thereof will be omitted. Only different parts will be described.

(A) Embodiment 1 FIG. 1 shows the configuration of a switchboard according to the present invention. As can be seen from a comparison with FIG. 3, a cooling chamber 15 is formed on the rear side of the switchboard. That is, the air conditioner unit 13 is arranged on the rear side of the switchboard main body 12 and is connected thereto. Cooling room 1
An air conditioner 17 for cooling the air in the cooling chamber 15 is attached to the ceiling surface of the air conditioner 5. A large number of through holes 16 a are formed in the partition 16, which is a part of the housing 1, for sending the cooled air in the cooling chamber 15 into the load bus chamber 5, while the fan 18 is in the air conditioning unit 13. Attached to. Note that a punching metal may be used instead of the partition 16 having the through hole 16a. In addition, through holes (not shown) are provided in the partition walls 2 and 3 for cooling other chambers.

In such a switchboard, the air in the cooling chamber 15 is cooled by the cooler 17 and the cooled air is supplied to the fan 1.
The cooling air flows into the load bus chamber 5 through the through hole 16a as a cooling air. Then, the heating element in the load bus chamber 5 is cooled. Further, the cooling air passes through the through holes formed in the partition walls 2 and 3 and also cools the heating elements in the power supply bus room 4 and the circuit breaker room 6.

(B) Embodiment 2 Next, FIG. 2 shows a configuration of a switchboard group in which switchboards according to Embodiment 1 are arranged. In this embodiment, four switchboards are arranged along the side of the switchboard. When the switchboards are arranged, the cooling chambers 15 are arranged on the same straight line. In the present invention, in order to combine the four cooling chambers 15 into one, one or both sides of the air conditioner unit 13 are cut out and one cooling chamber 15 is formed. It is formed. The communication between the cooling chambers is performed by the cooler 1 provided separately for each chamber.
This is for reducing the initial cost and the operating cost by reducing the number of 7. In this embodiment, coolers 17 are provided in the cooling chambers 15 at both ends, and fans 18 are provided for each switchboard. Each of the four switchboards is fixed on the same channel base, eliminating the need for height adjustment during installation. As the fan, a fan for stirring the air in the cooling chamber 15 may be provided. The number of switchboards is not limited to four, but may be two, three, or five or more.

Next, the operation of the switchboard group will be described. 4
The air in the cooling chamber 15 where the two cooling chambers 15 are integrated is 2
Cooler 17 cools. Then, the cooled air is sent into the load bus room 5 or the like in each switchboard by each fan 18 to cool the heating element. Further, the cooling chamber 15 can be used as an inspection passage on the back side of the switchboard.

The switchboard and switchboard group according to the present invention can be used both indoors and outdoors. Further, in this embodiment, the switchboard in which the air conditioner unit is connected to the switchboard body is shown. However, the cooling chamber may be formed by making the switchboard casing larger than before and providing a partition.

[0015]

As can be seen from the above description, claim 1
According to the switchboard according to the related art, a cooling chamber having an air conditioner is formed on the rear side of the switchboard, and a fan that allows the cool air in the cooling chamber to flow to the other chamber is provided through a through hole formed between the cooling chamber and the other chamber. In addition, the heating element in the switchboard can be cooled without being affected by outside air. Further, since the cooling chamber is formed directly on the switchboard, it is not necessary to adjust the height as in the case of using a flexible duct.

According to the switchboard group according to the second aspect, the switchboards according to the first aspect are arranged on the side of the switchboard so that adjacent cooling chambers communicate with each other. It becomes a single cooling room and can be centrally cooled with a small number of air conditioners, resulting in high cooling efficiency. Further, the temperatures of the respective cooling chambers become uniform. Further, since the cooling chambers communicate with each other, the cooling chamber can be used as an inspection passage on the rear side of the switchboard.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a switchboard according to the present invention.

FIG. 2 is a partially cutaway plan view showing a second embodiment of the switchboard group according to the present invention;

FIG. 3 is a cross-sectional view of a conventional switchboard.

FIG. 4 is a configuration diagram of a conventional switchboard having a cooling mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Housing 12 ... Switchboard main body 13 ... Air-conditioning unit 15 ... Cooling room 16 ... Partition wall 16a ... Through-hole 17 ... Air-conditioner 18 ... Fan

Claims (2)

(57) [Scope of request for utility model registration] 1. A cooling chamber is formed on the back side of a switchboard by providing a partition having a large number of through holes inside a housing constituting the switchboard, and a cooler and cooled air are formed in the cooling chamber through the through holes. A power distribution panel characterized by providing a fan for sending the air to another room through the air conditioner. 2. A group of switchboards, wherein a plurality of the switchboards are arranged in close contact with the side of the switchboard and adjacent cooling chambers are communicated with each other.