JPS6117657Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a natural air cooling structure for an exchanger.

Conventionally, natural air cooling has been used to suppress the temperature of the exchanger substrate from rising due to heat generated from the substrate. The natural air cooling structure of a conventional exchange is as shown in FIG. That is, substrate 1
A convection guide plate 2 is provided diagonally between the upper front end of the lower board 1 and the lower rear end of the upper board 1 so that air is taken in from the front of the board and flows to the rear. The airflow prevention plate 3 is provided to protrude approximately 45 degrees so that the flow of exhaust air from the substrate is not obstructed by an upward airflow from below. Therefore, the hot air generated on the substrate 1 is transferred to the airflow prevention plate 3.
Since this rear ventilation space 4 is for raising hot air, a larger space is required depending on the number of stages of boards 1 mounted above and below. A cable holding plate 6 is provided on the front side to hold the cable 5 with a connector. 7 is a maintenance passage. When using this method, the depth space is large due to the cable holding and the above-mentioned air cooling structure, and the number of parts is large, making it uneconomical.

In addition, when conventional switchboards were installed on a wall, multiple units were installed horizontally as well, making it difficult to draw in air from the sides, and also complicating the construction work to draw in air from the bottom. The simplest method was to suck in air from the front and exhaust hot air from the rear.

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to provide a natural air cooling structure for an exchanger that increases the efficiency of the space occupied by the device and reduces the number of parts.

The natural air cooling structure of the exchanger according to the present invention provides a ventilation space behind a group of exchanger boards arranged in multiple stages with vertical intervals, and airflow rising in the ventilation space is directed from the bottom of each board to the back of each board. A convection guide plate is installed between each board in each tier to discharge air forward from the upper side of the board, and the cable holding plate of each board provided in front of each board is tilted upward at the front to prevent airflow from rising from the lower tier. It is characterized by being a prevention plate.

To summarize, the features of the natural air cooling structure of the exchanger of this invention are that air is introduced from the back of the board, hot air is discharged from the front, and the cable holding plate also functions as an airflow prevention plate. be.

Hereinafter, the structure of the switching device of the present invention will be explained based on FIG. 2 showing an embodiment. A ventilation space 4 is provided on the rear side of a group of boards of the exchanger arranged in a plurality of stages with vertical intervals. Since the space 4 is a space where cold air rises and the airflow prevention plate does not protrude from the substrate, it may be narrower than a conventional ventilation space. Between each stage board 1, air is taken in from the rear and bottom of each stage board 1,
A convection guide plate 2 is provided so that the flow flows upwardly at the front. In addition, an airflow prevention plate 3 is installed below the hot air outlet in front of the board 1 in order to prevent rising airflow from the lower stage and to smoothly discharge hot air from the hot air outlet.
protrudes at an angle of approximately 45 degrees. The airflow prevention plate 3 also serves as a holding plate for the cable 5 with a connector. In the illustrated embodiment, the airflow prevention plate 3
Although these hold the lower cable with connector 5, they may each hold the upper cable with connector 5. In this way, the protruding area of the airflow prevention plate 3 serves as a space for accommodating the cable 5 with a connector. Since the hot air is discharged along the air flow prevention plate 3 into the maintenance passage 7, no particular ventilation space is required on the apparatus side.

In the device of the present invention, cold air is taken into the ventilation space 4 by providing a space below the lowest substrate 1 and sucking the air from the front side. Recently, switching equipment is often installed on raised floors in order to prevent static electricity and to route cables under the floor due to appearance problems. An inhalation method will be adopted.

As described above, with the structure of the present invention, the space for the cable with connector and the mounting space for the airflow prevention plate are shared, and by placing the hot air outlet in the front, the rear ventilation space is kept constant and minimized. This makes it possible to improve the efficiency of the space occupied by the device and reduce the number of parts.

[Brief explanation of the drawing]

FIG. 1 is a schematic side sectional view of an example of a conventional switching equipment.
FIG. 2 is a schematic side sectional view of one embodiment of the switching device of the present invention. 1... Board, 2... Convection guide plate, 3... Airflow prevention plate, 4... Rear ventilation space, 5... Cable with connector, 6... Cable holding plate, 7... Maintenance passage.

Claims (1)

[Scope of utility model registration request] A convection guide plate that provides a ventilation space behind a group of exchanger boards that are arranged in multiple stages at intervals above and below, and allows the airflow rising in the ventilation space to be discharged from the bottom of each board, through each board, and forward from the top. is provided between each board, and the cable holding plate of each board provided on the front side of each board is made to protrude upward from the upper front end of the board to serve as an airflow prevention board that prevents upward airflow from the lower stage. The natural air cooling structure of the exchanger.