JP2654415B2 - Electrical equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device having a cooling device.

[0002]

2. Description of the Related Art FIGS. 3 and 4 are views showing the flow of a cooling fluid in a conventional electric apparatus of this type, wherein 1 is an outer box of the electric apparatus, and 2 is formed at the center of the upper wall of the outer box 1. FIG. A cooling fluid outlet pipe 3 extending from the connected pipe connection port 1A and connected to an external cooling device (not shown) extends from a pipe connection port 1B formed at the center of the bottom of the front wall of the outer box 1 and connected to the external cooling device. A cooling fluid inlet pipe 4 is an electric device main body, and 5 is a cooling fluid.

[0003]

As described above, in the prior art, the pipe connection port 1 to which the cooling fluid inlet pipe 3 is connected is provided.
B is formed at the center of the lower part of the side wall of the outer box 1, and the pipe connection port 1A to which the cooling fluid outlet pipe 2 is connected is formed at the center of the lower part of the side wall of the outer box 1. As shown in FIG. 4, the cooling fluid 5 flows into the central part of the outer box 1 and does not flow evenly in the outer box 1. There is a problem that the device main body 4 is not uniformly cooled, and local overheating occurs to shorten the life of the electric device main body 4.

The present invention has been made to solve this problem, and it is an object of the present invention to provide an electric device capable of uniformly cooling an electric device main body in an outer box.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a cooling fluid piping connection port connected to an external cooling fluid source at a lower portion and an upper portion of a box housing an electric equipment body. In the electric equipment provided, the cooling fluid pipe connection port on the outlet side and the cooling fluid pipe connection port on the inlet side are provided two each, and the cooling fluid pipe connection port on the inlet side is in front of the box body. The cooling fluid pipe connection port on the outlet side is formed on the upper wall at a predetermined interval in the left-right direction at the lower part of the wall and the rear wall.

[0006]

In the present invention, since the pipe connection port to which the cooling fluid outlet pipe is connected and the pipe connection port to which the cooling fluid inlet pipe is connected are shifted to the left and right, the cooling fluid is sufficiently diffused in the box. And flows evenly in the box.

[0007]

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an embodiment in which two cooling devices are provided. In FIG. 1, reference numeral 1a denotes a pipe connection port formed on the upper wall of the outer box 1 on the right side, and 1b denotes an outer box 1 Pipe connection port formed on the left side in the rear wall drawing, 2A
Is a cooling fluid outlet pipe connected to the pipe connection port 1a, 3A
Is a cooling fluid inlet pipe connected to the pipe connection port 1b, and both pipes are connected to a cooling device (not shown) different from the cooling device to which the pipes 2 and 3 are connected.

In this embodiment, the flow of the cooling fluid flowing from the pipe connection port 1b and flowing out of the pipe connection port 1a and the flow of the cooling fluid flowing from the pipe connection port 1B and flowing out of the pipe connection port 1A are different. Since it crosses in the outer case 1, the distribution of the cooling fluid in the outer case 1 is more uniform than in the case of the above embodiment.

[0010]

As described above, according to the present invention, the cooling fluid pipe connection port on the inlet side and the cooling fluid pipe connection port on the outlet side are formed to be shifted left and right with respect to each other.
Since the flow of the cooling fluid in the outer case is equalized as compared with the related art, it is possible to prevent local overheating of the electric device main body.

[Brief description of the drawings]

FIG. 1 is a plan view showing another embodiment of the present invention.

FIG. 2 is a front view of the other embodiment.

FIG. 3 is a plan view of a conventional electric device.

FIG. 4 is a plan view of the conventional example.

[Explanation of symbols]

1 Outer box of electrical equipment, 1A, 1a Piping connection port, 1B,
1b Pipe connection port, 2, 2a outlet pipe, 3, 3a inlet pipe, 4 electric equipment main body, 5 cooling fluid.

Claims (1)

(57) [Claims] 1. An electric device having a cooling fluid piping connection port connected to an external cooling fluid source at a lower portion and an upper portion of a box housing an electric device main body therein, wherein a cooling fluid piping connection at an outlet side is provided. A cooling fluid pipe connection port on the inlet side and a cooling fluid pipe connection port on the inlet side, and the cooling fluid pipe connection ports on the inlet side are shifted left and right relative to each other at the lower part of the front wall and the rear wall of the box body. An electrical device, wherein the formed cooling fluid pipe connection port on the upper wall is formed at a predetermined interval in the left-right direction.